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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/input/misc
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/input/misc')
-rw-r--r--kernel/drivers/input/misc/88pm80x_onkey.c167
-rw-r--r--kernel/drivers/input/misc/88pm860x_onkey.c147
-rw-r--r--kernel/drivers/input/misc/Kconfig789
-rw-r--r--kernel/drivers/input/misc/Makefile76
-rw-r--r--kernel/drivers/input/misc/ab8500-ponkey.c134
-rw-r--r--kernel/drivers/input/misc/ad714x-i2c.c121
-rw-r--r--kernel/drivers/input/misc/ad714x-spi.c127
-rw-r--r--kernel/drivers/input/misc/ad714x.c1260
-rw-r--r--kernel/drivers/input/misc/ad714x.h55
-rw-r--r--kernel/drivers/input/misc/adxl34x-i2c.c153
-rw-r--r--kernel/drivers/input/misc/adxl34x-spi.c134
-rw-r--r--kernel/drivers/input/misc/adxl34x.c913
-rw-r--r--kernel/drivers/input/misc/adxl34x.h30
-rw-r--r--kernel/drivers/input/misc/apanel.c350
-rw-r--r--kernel/drivers/input/misc/arizona-haptics.c235
-rw-r--r--kernel/drivers/input/misc/ati_remote2.c1016
-rw-r--r--kernel/drivers/input/misc/atlas_btns.c158
-rw-r--r--kernel/drivers/input/misc/axp20x-pek.c290
-rw-r--r--kernel/drivers/input/misc/bfin_rotary.c295
-rw-r--r--kernel/drivers/input/misc/bma150.c671
-rw-r--r--kernel/drivers/input/misc/cm109.c924
-rw-r--r--kernel/drivers/input/misc/cma3000_d0x.c399
-rw-r--r--kernel/drivers/input/misc/cma3000_d0x.h42
-rw-r--r--kernel/drivers/input/misc/cma3000_d0x_i2c.c132
-rw-r--r--kernel/drivers/input/misc/cobalt_btns.c162
-rw-r--r--kernel/drivers/input/misc/da9052_onkey.c159
-rw-r--r--kernel/drivers/input/misc/da9055_onkey.c168
-rw-r--r--kernel/drivers/input/misc/dm355evm_keys.c271
-rw-r--r--kernel/drivers/input/misc/drv260x.c738
-rw-r--r--kernel/drivers/input/misc/drv2667.c497
-rw-r--r--kernel/drivers/input/misc/e3x0-button.c157
-rw-r--r--kernel/drivers/input/misc/gp2ap002a00f.c286
-rw-r--r--kernel/drivers/input/misc/gpio-beeper.c123
-rw-r--r--kernel/drivers/input/misc/gpio_tilt_polled.c210
-rw-r--r--kernel/drivers/input/misc/hp_sdc_rtc.c733
-rw-r--r--kernel/drivers/input/misc/ideapad_slidebar.c357
-rw-r--r--kernel/drivers/input/misc/ims-pcu.c2144
-rw-r--r--kernel/drivers/input/misc/ixp4xx-beeper.c177
-rw-r--r--kernel/drivers/input/misc/keyspan_remote.c595
-rw-r--r--kernel/drivers/input/misc/kxtj9.c673
-rw-r--r--kernel/drivers/input/misc/m68kspkr.c149
-rw-r--r--kernel/drivers/input/misc/max77693-haptic.c353
-rw-r--r--kernel/drivers/input/misc/max77843-haptic.c358
-rw-r--r--kernel/drivers/input/misc/max8925_onkey.c177
-rw-r--r--kernel/drivers/input/misc/max8997_haptic.c413
-rw-r--r--kernel/drivers/input/misc/mc13783-pwrbutton.c269
-rw-r--r--kernel/drivers/input/misc/mma8450.c238
-rw-r--r--kernel/drivers/input/misc/mpu3050.c482
-rw-r--r--kernel/drivers/input/misc/palmas-pwrbutton.c329
-rw-r--r--kernel/drivers/input/misc/pcap_keys.c131
-rw-r--r--kernel/drivers/input/misc/pcf50633-input.c120
-rw-r--r--kernel/drivers/input/misc/pcf8574_keypad.c225
-rw-r--r--kernel/drivers/input/misc/pcspkr.c135
-rw-r--r--kernel/drivers/input/misc/pm8941-pwrkey.c293
-rw-r--r--kernel/drivers/input/misc/pm8xxx-vibrator.c234
-rw-r--r--kernel/drivers/input/misc/pmic8xxx-pwrkey.c205
-rw-r--r--kernel/drivers/input/misc/powermate.c452
-rw-r--r--kernel/drivers/input/misc/pwm-beeper.c192
-rw-r--r--kernel/drivers/input/misc/rb532_button.c106
-rw-r--r--kernel/drivers/input/misc/regulator-haptic.c266
-rw-r--r--kernel/drivers/input/misc/retu-pwrbutton.c97
-rw-r--r--kernel/drivers/input/misc/rotary_encoder.c336
-rw-r--r--kernel/drivers/input/misc/sgi_btns.c164
-rw-r--r--kernel/drivers/input/misc/sirfsoc-onkey.c216
-rw-r--r--kernel/drivers/input/misc/soc_button_array.c222
-rw-r--r--kernel/drivers/input/misc/sparcspkr.c366
-rw-r--r--kernel/drivers/input/misc/tps65218-pwrbutton.c126
-rw-r--r--kernel/drivers/input/misc/twl4030-pwrbutton.c115
-rw-r--r--kernel/drivers/input/misc/twl4030-vibra.c262
-rw-r--r--kernel/drivers/input/misc/twl6040-vibra.c398
-rw-r--r--kernel/drivers/input/misc/uinput.c943
-rw-r--r--kernel/drivers/input/misc/wistron_btns.c1407
-rw-r--r--kernel/drivers/input/misc/wm831x-on.c149
-rw-r--r--kernel/drivers/input/misc/xen-kbdfront.c401
-rw-r--r--kernel/drivers/input/misc/yealink.c1007
-rw-r--r--kernel/drivers/input/misc/yealink.h220
76 files changed, 27624 insertions, 0 deletions
diff --git a/kernel/drivers/input/misc/88pm80x_onkey.c b/kernel/drivers/input/misc/88pm80x_onkey.c
new file mode 100644
index 000000000..cf9908f1e
--- /dev/null
+++ b/kernel/drivers/input/misc/88pm80x_onkey.c
@@ -0,0 +1,167 @@
+/*
+ * Marvell 88PM80x ONKEY driver
+ *
+ * Copyright (C) 2012 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ * Qiao Zhou <zhouqiao@marvell.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/mfd/88pm80x.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#define PM800_LONG_ONKEY_EN (1 << 0)
+#define PM800_LONG_KEY_DELAY (8) /* 1 .. 16 seconds */
+#define PM800_LONKEY_PRESS_TIME ((PM800_LONG_KEY_DELAY-1) << 4)
+#define PM800_LONKEY_PRESS_TIME_MASK (0xF0)
+#define PM800_SW_PDOWN (1 << 5)
+
+struct pm80x_onkey_info {
+ struct input_dev *idev;
+ struct pm80x_chip *pm80x;
+ struct regmap *map;
+ int irq;
+};
+
+/* 88PM80x gives us an interrupt when ONKEY is held */
+static irqreturn_t pm80x_onkey_handler(int irq, void *data)
+{
+ struct pm80x_onkey_info *info = data;
+ int ret = 0;
+ unsigned int val;
+
+ ret = regmap_read(info->map, PM800_STATUS_1, &val);
+ if (ret < 0) {
+ dev_err(info->idev->dev.parent, "failed to read status: %d\n", ret);
+ return IRQ_NONE;
+ }
+ val &= PM800_ONKEY_STS1;
+
+ input_report_key(info->idev, KEY_POWER, val);
+ input_sync(info->idev);
+
+ return IRQ_HANDLED;
+}
+
+static SIMPLE_DEV_PM_OPS(pm80x_onkey_pm_ops, pm80x_dev_suspend,
+ pm80x_dev_resume);
+
+static int pm80x_onkey_probe(struct platform_device *pdev)
+{
+
+ struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm80x_onkey_info *info;
+ int err;
+
+ info = kzalloc(sizeof(struct pm80x_onkey_info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->pm80x = chip;
+
+ info->irq = platform_get_irq(pdev, 0);
+ if (info->irq < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ err = -EINVAL;
+ goto out;
+ }
+
+ info->map = info->pm80x->regmap;
+ if (!info->map) {
+ dev_err(&pdev->dev, "no regmap!\n");
+ err = -EINVAL;
+ goto out;
+ }
+
+ info->idev = input_allocate_device();
+ if (!info->idev) {
+ dev_err(&pdev->dev, "Failed to allocate input dev\n");
+ err = -ENOMEM;
+ goto out;
+ }
+
+ info->idev->name = "88pm80x_on";
+ info->idev->phys = "88pm80x_on/input0";
+ info->idev->id.bustype = BUS_I2C;
+ info->idev->dev.parent = &pdev->dev;
+ info->idev->evbit[0] = BIT_MASK(EV_KEY);
+ __set_bit(KEY_POWER, info->idev->keybit);
+
+ err = pm80x_request_irq(info->pm80x, info->irq, pm80x_onkey_handler,
+ IRQF_ONESHOT, "onkey", info);
+ if (err < 0) {
+ dev_err(&pdev->dev, "Failed to request IRQ: #%d: %d\n",
+ info->irq, err);
+ goto out_reg;
+ }
+
+ err = input_register_device(info->idev);
+ if (err) {
+ dev_err(&pdev->dev, "Can't register input device: %d\n", err);
+ goto out_irq;
+ }
+
+ platform_set_drvdata(pdev, info);
+
+ /* Enable long onkey detection */
+ regmap_update_bits(info->map, PM800_RTC_MISC4, PM800_LONG_ONKEY_EN,
+ PM800_LONG_ONKEY_EN);
+ /* Set 8-second interval */
+ regmap_update_bits(info->map, PM800_RTC_MISC3,
+ PM800_LONKEY_PRESS_TIME_MASK,
+ PM800_LONKEY_PRESS_TIME);
+
+ device_init_wakeup(&pdev->dev, 1);
+ return 0;
+
+out_irq:
+ pm80x_free_irq(info->pm80x, info->irq, info);
+out_reg:
+ input_free_device(info->idev);
+out:
+ kfree(info);
+ return err;
+}
+
+static int pm80x_onkey_remove(struct platform_device *pdev)
+{
+ struct pm80x_onkey_info *info = platform_get_drvdata(pdev);
+
+ device_init_wakeup(&pdev->dev, 0);
+ pm80x_free_irq(info->pm80x, info->irq, info);
+ input_unregister_device(info->idev);
+ kfree(info);
+ return 0;
+}
+
+static struct platform_driver pm80x_onkey_driver = {
+ .driver = {
+ .name = "88pm80x-onkey",
+ .pm = &pm80x_onkey_pm_ops,
+ },
+ .probe = pm80x_onkey_probe,
+ .remove = pm80x_onkey_remove,
+};
+
+module_platform_driver(pm80x_onkey_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Marvell 88PM80x ONKEY driver");
+MODULE_AUTHOR("Qiao Zhou <zhouqiao@marvell.com>");
+MODULE_ALIAS("platform:88pm80x-onkey");
diff --git a/kernel/drivers/input/misc/88pm860x_onkey.c b/kernel/drivers/input/misc/88pm860x_onkey.c
new file mode 100644
index 000000000..cc87443aa
--- /dev/null
+++ b/kernel/drivers/input/misc/88pm860x_onkey.c
@@ -0,0 +1,147 @@
+/*
+ * 88pm860x_onkey.c - Marvell 88PM860x ONKEY driver
+ *
+ * Copyright (C) 2009-2010 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/88pm860x.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+
+#define PM8607_WAKEUP 0x0b
+
+#define LONG_ONKEY_EN (1 << 1)
+#define ONKEY_STATUS (1 << 0)
+
+struct pm860x_onkey_info {
+ struct input_dev *idev;
+ struct pm860x_chip *chip;
+ struct i2c_client *i2c;
+ struct device *dev;
+ int irq;
+};
+
+/* 88PM860x gives us an interrupt when ONKEY is held */
+static irqreturn_t pm860x_onkey_handler(int irq, void *data)
+{
+ struct pm860x_onkey_info *info = data;
+ int ret;
+
+ ret = pm860x_reg_read(info->i2c, PM8607_STATUS_2);
+ ret &= ONKEY_STATUS;
+ input_report_key(info->idev, KEY_POWER, ret);
+ input_sync(info->idev);
+
+ /* Enable 8-second long onkey detection */
+ pm860x_set_bits(info->i2c, PM8607_WAKEUP, 3, LONG_ONKEY_EN);
+ return IRQ_HANDLED;
+}
+
+static int pm860x_onkey_probe(struct platform_device *pdev)
+{
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm860x_onkey_info *info;
+ int irq, ret;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ info = devm_kzalloc(&pdev->dev, sizeof(struct pm860x_onkey_info),
+ GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ info->chip = chip;
+ info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+ info->dev = &pdev->dev;
+ info->irq = irq;
+
+ info->idev = devm_input_allocate_device(&pdev->dev);
+ if (!info->idev) {
+ dev_err(chip->dev, "Failed to allocate input dev\n");
+ return -ENOMEM;
+ }
+
+ info->idev->name = "88pm860x_on";
+ info->idev->phys = "88pm860x_on/input0";
+ info->idev->id.bustype = BUS_I2C;
+ info->idev->dev.parent = &pdev->dev;
+ info->idev->evbit[0] = BIT_MASK(EV_KEY);
+ info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+
+ ret = input_register_device(info->idev);
+ if (ret) {
+ dev_err(chip->dev, "Can't register input device: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
+ pm860x_onkey_handler, IRQF_ONESHOT,
+ "onkey", info);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+ info->irq, ret);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, info);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+}
+
+static int __maybe_unused pm860x_onkey_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+ if (device_may_wakeup(dev))
+ chip->wakeup_flag |= 1 << PM8607_IRQ_ONKEY;
+ return 0;
+}
+static int __maybe_unused pm860x_onkey_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+ if (device_may_wakeup(dev))
+ chip->wakeup_flag &= ~(1 << PM8607_IRQ_ONKEY);
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(pm860x_onkey_pm_ops, pm860x_onkey_suspend, pm860x_onkey_resume);
+
+static struct platform_driver pm860x_onkey_driver = {
+ .driver = {
+ .name = "88pm860x-onkey",
+ .pm = &pm860x_onkey_pm_ops,
+ },
+ .probe = pm860x_onkey_probe,
+};
+module_platform_driver(pm860x_onkey_driver);
+
+MODULE_DESCRIPTION("Marvell 88PM860x ONKEY driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/Kconfig b/kernel/drivers/input/misc/Kconfig
new file mode 100644
index 000000000..4436ab1b9
--- /dev/null
+++ b/kernel/drivers/input/misc/Kconfig
@@ -0,0 +1,789 @@
+#
+# Input misc drivers configuration
+#
+menuconfig INPUT_MISC
+ bool "Miscellaneous devices"
+ help
+ Say Y here, and a list of miscellaneous input drivers will be displayed.
+ Everything that didn't fit into the other categories is here. This option
+ doesn't affect the kernel.
+
+ If unsure, say Y.
+
+if INPUT_MISC
+
+config INPUT_88PM860X_ONKEY
+ tristate "88PM860x ONKEY support"
+ depends on MFD_88PM860X
+ help
+ Support the ONKEY of Marvell 88PM860x PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called 88pm860x_onkey.
+
+config INPUT_88PM80X_ONKEY
+ tristate "88PM80x ONKEY support"
+ depends on MFD_88PM800
+ help
+ Support the ONKEY of Marvell 88PM80x PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called 88pm80x_onkey.
+
+config INPUT_AB8500_PONKEY
+ tristate "AB8500 Pon (PowerOn) Key"
+ depends on AB8500_CORE
+ help
+ Say Y here to use the PowerOn Key for ST-Ericsson's AB8500
+ Mix-Sig PMIC.
+
+ To compile this driver as a module, choose M here: the module
+ will be called ab8500-ponkey.
+
+config INPUT_AD714X
+ tristate "Analog Devices AD714x Capacitance Touch Sensor"
+ help
+ Say Y here if you want to support an AD7142/3/7/8/7A touch sensor.
+
+ You should select a bus connection too.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad714x.
+
+config INPUT_AD714X_I2C
+ tristate "support I2C bus connection"
+ depends on INPUT_AD714X && I2C
+ default y
+ help
+ Say Y here if you have AD7142/AD7147 hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad714x-i2c.
+
+config INPUT_AD714X_SPI
+ tristate "support SPI bus connection"
+ depends on INPUT_AD714X && SPI
+ default y
+ help
+ Say Y here if you have AD7142/AD7147 hooked to a SPI bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad714x-spi.
+
+config INPUT_ARIZONA_HAPTICS
+ tristate "Arizona haptics support"
+ depends on MFD_ARIZONA && SND_SOC
+ select INPUT_FF_MEMLESS
+ help
+ Say Y to enable support for the haptics module in Arizona CODECs.
+
+ To compile this driver as a module, choose M here: the
+ module will be called arizona-haptics.
+
+config INPUT_BMA150
+ tristate "BMA150/SMB380 acceleration sensor support"
+ depends on I2C
+ select INPUT_POLLDEV
+ help
+ Say Y here if you have Bosch Sensortec's BMA150 or SMB380
+ acceleration sensor hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called bma150.
+
+config INPUT_E3X0_BUTTON
+ tristate "NI Ettus Research USRP E3x0 Button support."
+ default n
+ help
+ Say Y here to enable support for the NI Ettus Research
+ USRP E3x0 Button.
+
+ To compile this driver as a module, choose M here: the
+ module will be called e3x0_button.
+
+config INPUT_PCSPKR
+ tristate "PC Speaker support"
+ depends on PCSPKR_PLATFORM
+ help
+ Say Y here if you want the standard PC Speaker to be used for
+ bells and whistles.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcspkr.
+
+config INPUT_PM8941_PWRKEY
+ tristate "Qualcomm PM8941 power key support"
+ depends on MFD_SPMI_PMIC
+ help
+ Say Y here if you want support for the power key usually found
+ on boards using a Qualcomm PM8941 compatible PMIC.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pm8941-pwrkey.
+
+config INPUT_PM8XXX_VIBRATOR
+ tristate "Qualcomm PM8XXX vibrator support"
+ depends on MFD_PM8XXX
+ select INPUT_FF_MEMLESS
+ help
+ This option enables device driver support for the vibrator
+ on Qualcomm PM8xxx chip. This driver supports ff-memless interface
+ from input framework.
+
+ To compile this driver as module, choose M here: the
+ module will be called pm8xxx-vibrator.
+
+config INPUT_PMIC8XXX_PWRKEY
+ tristate "PMIC8XXX power key support"
+ depends on MFD_PM8XXX
+ help
+ Say Y here if you want support for the PMIC8XXX power key.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pmic8xxx-pwrkey.
+
+config INPUT_SPARCSPKR
+ tristate "SPARC Speaker support"
+ depends on PCI && SPARC64
+ help
+ Say Y here if you want the standard Speaker on Sparc PCI systems
+ to be used for bells and whistles.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sparcspkr.
+
+config INPUT_M68K_BEEP
+ tristate "M68k Beeper support"
+ depends on M68K
+
+config INPUT_MAX77693_HAPTIC
+ tristate "MAXIM MAX77693 haptic controller support"
+ depends on MFD_MAX77693 && PWM
+ select INPUT_FF_MEMLESS
+ help
+ This option enables support for the haptic controller on
+ MAXIM MAX77693 chip.
+
+ To compile this driver as module, choose M here: the
+ module will be called max77693-haptic.
+
+config INPUT_MAX77843_HAPTIC
+ tristate "MAXIM MAX77843 haptic controller support"
+ depends on MFD_MAX77843 && REGULATOR
+ select INPUT_FF_MEMLESS
+ help
+ This option enables support for the haptic controller on
+ MAXIM MAX77843 chip. The driver supports ff-memless interface
+ from input framework.
+
+ To compile this driver as module, choose M here: the
+ module will be called max77843-haptic.
+
+config INPUT_MAX8925_ONKEY
+ tristate "MAX8925 ONKEY support"
+ depends on MFD_MAX8925
+ help
+ Support the ONKEY of MAX8925 PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called max8925_onkey.
+
+config INPUT_MAX8997_HAPTIC
+ tristate "MAXIM MAX8997 haptic controller support"
+ depends on PWM && MFD_MAX8997
+ select INPUT_FF_MEMLESS
+ help
+ This option enables device driver support for the haptic controller
+ on MAXIM MAX8997 chip. This driver supports ff-memless interface
+ from input framework.
+
+ To compile this driver as module, choose M here: the
+ module will be called max8997-haptic.
+
+config INPUT_MC13783_PWRBUTTON
+ tristate "MC13783 ON buttons"
+ depends on MFD_MC13XXX
+ help
+ Support the ON buttons of MC13783 PMIC as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mc13783-pwrbutton.
+
+config INPUT_MMA8450
+ tristate "MMA8450 - Freescale's 3-Axis, 8/12-bit Digital Accelerometer"
+ depends on I2C
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want to support Freescale's MMA8450 Accelerometer
+ through I2C interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mma8450.
+
+config INPUT_MPU3050
+ tristate "MPU3050 Triaxial gyroscope sensor"
+ depends on I2C
+ help
+ Say Y here if you want to support InvenSense MPU3050
+ connected via an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mpu3050.
+
+config INPUT_APANEL
+ tristate "Fujitsu Lifebook Application Panel buttons"
+ depends on X86 && I2C && LEDS_CLASS
+ select INPUT_POLLDEV
+ select CHECK_SIGNATURE
+ help
+ Say Y here for support of the Application Panel buttons, used on
+ Fujitsu Lifebook. These are attached to the mainboard through
+ an SMBus interface managed by the I2C Intel ICH (i801) driver,
+ which you should also build for this kernel.
+
+ To compile this driver as a module, choose M here: the module will
+ be called apanel.
+
+config INPUT_GP2A
+ tristate "Sharp GP2AP002A00F I2C Proximity/Opto sensor driver"
+ depends on I2C
+ depends on GPIOLIB
+ help
+ Say Y here if you have a Sharp GP2AP002A00F proximity/als combo-chip
+ hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gp2ap002a00f.
+
+config INPUT_GPIO_BEEPER
+ tristate "Generic GPIO Beeper support"
+ depends on GPIOLIB
+ help
+ Say Y here if you have a beeper connected to a GPIO pin.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gpio-beeper.
+
+config INPUT_GPIO_TILT_POLLED
+ tristate "Polled GPIO tilt switch"
+ depends on GPIOLIB
+ select INPUT_POLLDEV
+ help
+ This driver implements support for tilt switches connected
+ to GPIO pins that are not capable of generating interrupts.
+
+ The list of gpios to use and the mapping of their states
+ to specific angles is done via platform data.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gpio_tilt_polled.
+
+config INPUT_IXP4XX_BEEPER
+ tristate "IXP4XX Beeper support"
+ depends on ARCH_IXP4XX
+ help
+ If you say yes here, you can connect a beeper to the
+ ixp4xx gpio pins. This is used by the LinkSys NSLU2.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ixp4xx-beeper.
+
+config INPUT_COBALT_BTNS
+ tristate "Cobalt button interface"
+ depends on MIPS_COBALT
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want to support MIPS Cobalt button interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cobalt_btns.
+
+config INPUT_WISTRON_BTNS
+ tristate "x86 Wistron laptop button interface"
+ depends on X86_32
+ select INPUT_POLLDEV
+ select INPUT_SPARSEKMAP
+ select NEW_LEDS
+ select LEDS_CLASS
+ select CHECK_SIGNATURE
+ help
+ Say Y here for support of Wistron laptop button interfaces, used on
+ laptops of various brands, including Acer and Fujitsu-Siemens. If
+ available, mail and wifi LEDs will be controllable via /sys/class/leds.
+
+ To compile this driver as a module, choose M here: the module will
+ be called wistron_btns.
+
+config INPUT_ATLAS_BTNS
+ tristate "x86 Atlas button interface"
+ depends on X86 && ACPI
+ help
+ Say Y here for support of Atlas wallmount touchscreen buttons.
+ The events will show up as scancodes F1 through F9 via evdev.
+
+ To compile this driver as a module, choose M here: the module will
+ be called atlas_btns.
+
+config INPUT_ATI_REMOTE2
+ tristate "ATI / Philips USB RF remote control"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use an ATI or Philips USB RF remote control.
+ These are RF remotes with USB receivers.
+ ATI Remote Wonder II comes with some ATI's All-In-Wonder video cards
+ and is also available as a separate product.
+ This driver provides mouse pointer, left and right mouse buttons,
+ and maps all the other remote buttons to keypress events.
+
+ To compile this driver as a module, choose M here: the module will be
+ called ati_remote2.
+
+config INPUT_KEYSPAN_REMOTE
+ tristate "Keyspan DMR USB remote control"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use a Keyspan DMR USB remote control.
+ Currently only the UIA-11 type of receiver has been tested. The tag
+ on the receiver that connects to the USB port should have a P/N that
+ will tell you what type of DMR you have. The UIA-10 type is not
+ supported at this time. This driver maps all buttons to keypress
+ events.
+
+ To compile this driver as a module, choose M here: the module will
+ be called keyspan_remote.
+
+config INPUT_KXTJ9
+ tristate "Kionix KXTJ9 tri-axis digital accelerometer"
+ depends on I2C
+ help
+ Say Y here to enable support for the Kionix KXTJ9 digital tri-axis
+ accelerometer.
+
+ To compile this driver as a module, choose M here: the module will
+ be called kxtj9.
+
+config INPUT_KXTJ9_POLLED_MODE
+ bool "Enable polling mode support"
+ depends on INPUT_KXTJ9
+ select INPUT_POLLDEV
+ help
+ Say Y here if you need accelerometer to work in polling mode.
+
+config INPUT_POWERMATE
+ tristate "Griffin PowerMate and Contour Jog support"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use Griffin PowerMate or Contour Jog devices.
+ These are aluminum dials which can measure clockwise and anticlockwise
+ rotation. The dial also acts as a pushbutton. The base contains an LED
+ which can be instructed to pulse or to switch to a particular intensity.
+
+ You can download userspace tools from
+ <http://sowerbutts.com/powermate/>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called powermate.
+
+config INPUT_YEALINK
+ tristate "Yealink usb-p1k voip phone"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to enable keyboard and LCD functions of the
+ Yealink usb-p1k usb phones. The audio part is enabled by the generic
+ usb sound driver, so you might want to enable that as well.
+
+ For information about how to use these additional functions, see
+ <file:Documentation/input/yealink.txt>.
+
+ To compile this driver as a module, choose M here: the module will be
+ called yealink.
+
+config INPUT_CM109
+ tristate "C-Media CM109 USB I/O Controller"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to enable keyboard and buzzer functions of the
+ C-Media CM109 usb phones. The audio part is enabled by the generic
+ usb sound driver, so you might want to enable that as well.
+
+ To compile this driver as a module, choose M here: the module will be
+ called cm109.
+
+config INPUT_REGULATOR_HAPTIC
+ tristate "Regulator haptics support"
+ depends on REGULATOR
+ select INPUT_FF_MEMLESS
+ help
+ This option enables device driver support for the haptic controlled
+ by a regulator. This driver supports ff-memless interface
+ from input framework.
+
+ To compile this driver as a module, choose M here: the
+ module will be called regulator-haptic.
+
+config INPUT_RETU_PWRBUTTON
+ tristate "Retu Power button Driver"
+ depends on MFD_RETU
+ help
+ Say Y here if you want to enable power key reporting via the
+ Retu chips found in Nokia Internet Tablets (770, N800, N810).
+
+ To compile this driver as a module, choose M here. The module will
+ be called retu-pwrbutton.
+
+config INPUT_TPS65218_PWRBUTTON
+ tristate "TPS65218 Power button driver"
+ depends on MFD_TPS65218
+ help
+ Say Y here if you want to enable power buttong reporting for
+ the TPS65218 Power Management IC device.
+
+ To compile this driver as a module, choose M here. The module will
+ be called tps65218-pwrbutton.
+
+config INPUT_AXP20X_PEK
+ tristate "X-Powers AXP20X power button driver"
+ depends on MFD_AXP20X
+ help
+ Say Y here if you want to enable power key reporting via the
+ AXP20X PMIC.
+
+ To compile this driver as a module, choose M here. The module will
+ be called axp20x-pek.
+
+
+config INPUT_TWL4030_PWRBUTTON
+ tristate "TWL4030 Power button Driver"
+ depends on TWL4030_CORE
+ help
+ Say Y here if you want to enable power key reporting via the
+ TWL4030 family of chips.
+
+ To compile this driver as a module, choose M here. The module will
+ be called twl4030_pwrbutton.
+
+config INPUT_TWL4030_VIBRA
+ tristate "Support for TWL4030 Vibrator"
+ depends on TWL4030_CORE
+ select MFD_TWL4030_AUDIO
+ select INPUT_FF_MEMLESS
+ help
+ This option enables support for TWL4030 Vibrator Driver.
+
+ To compile this driver as a module, choose M here. The module will
+ be called twl4030_vibra.
+
+config INPUT_TWL6040_VIBRA
+ tristate "Support for TWL6040 Vibrator"
+ depends on TWL6040_CORE
+ select INPUT_FF_MEMLESS
+ help
+ This option enables support for TWL6040 Vibrator Driver.
+
+ To compile this driver as a module, choose M here. The module will
+ be called twl6040_vibra.
+
+config INPUT_UINPUT
+ tristate "User level driver support"
+ help
+ Say Y here if you want to support user level drivers for input
+ subsystem accessible under char device 10:223 - /dev/input/uinput.
+
+ To compile this driver as a module, choose M here: the
+ module will be called uinput.
+
+config INPUT_SGI_BTNS
+ tristate "SGI Indy/O2 volume button interface"
+ depends on SGI_IP22 || SGI_IP32
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want to support SGI Indy/O2 volume button interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sgi_btns.
+
+config HP_SDC_RTC
+ tristate "HP SDC Real Time Clock"
+ depends on (GSC || HP300) && SERIO
+ select HP_SDC
+ help
+ Say Y here if you want to support the built-in real time clock
+ of the HP SDC controller.
+
+config INPUT_PALMAS_PWRBUTTON
+ tristate "Palmas Power button Driver"
+ depends on MFD_PALMAS
+ help
+ Say Y here if you want to enable power key reporting via the
+ Palmas family of PMICs.
+
+ To compile this driver as a module, choose M here. The module will
+ be called palmas_pwrbutton.
+
+config INPUT_PCF50633_PMU
+ tristate "PCF50633 PMU events"
+ depends on MFD_PCF50633
+ help
+ Say Y to include support for delivering PMU events via input
+ layer on NXP PCF50633.
+
+config INPUT_PCF8574
+ tristate "PCF8574 Keypad input device"
+ depends on I2C
+ help
+ Say Y here if you want to support a keypad connected via I2C
+ with a PCF8574.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcf8574_keypad.
+
+config INPUT_PWM_BEEPER
+ tristate "PWM beeper support"
+ depends on PWM
+ help
+ Say Y here to get support for PWM based beeper devices.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the module will be
+ called pwm-beeper.
+
+config INPUT_GPIO_ROTARY_ENCODER
+ tristate "Rotary encoders connected to GPIO pins"
+ depends on GPIOLIB
+ help
+ Say Y here to add support for rotary encoders connected to GPIO lines.
+ Check file:Documentation/input/rotary-encoder.txt for more
+ information.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rotary_encoder.
+
+config INPUT_RB532_BUTTON
+ tristate "Mikrotik Routerboard 532 button interface"
+ depends on MIKROTIK_RB532
+ depends on GPIOLIB
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want support for the S1 button built into
+ Mikrotik's Routerboard 532.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rb532_button.
+
+config INPUT_DA9052_ONKEY
+ tristate "Dialog DA9052/DA9053 Onkey"
+ depends on PMIC_DA9052
+ help
+ Support the ONKEY of Dialog DA9052 PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the
+ module will be called da9052_onkey.
+
+config INPUT_DA9055_ONKEY
+ tristate "Dialog Semiconductor DA9055 ONKEY"
+ depends on MFD_DA9055
+ help
+ Support the ONKEY of DA9055 PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called da9055_onkey.
+
+config INPUT_DM355EVM
+ tristate "TI DaVinci DM355 EVM Keypad and IR Remote"
+ depends on MFD_DM355EVM_MSP
+ select INPUT_SPARSEKMAP
+ help
+ Supports the pushbuttons and IR remote used with
+ the DM355 EVM board.
+
+ To compile this driver as a module, choose M here: the
+ module will be called dm355evm_keys.
+
+config INPUT_BFIN_ROTARY
+ tristate "Blackfin Rotary support"
+ depends on BF54x || BF52x
+ help
+ Say Y here if you want to use the Blackfin Rotary.
+
+ To compile this driver as a module, choose M here: the
+ module will be called bfin-rotary.
+
+config INPUT_WM831X_ON
+ tristate "WM831X ON pin"
+ depends on MFD_WM831X
+ help
+ Support the ON pin of WM831X PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called wm831x_on.
+
+config INPUT_PCAP
+ tristate "Motorola EZX PCAP misc input events"
+ depends on EZX_PCAP
+ help
+ Say Y here if you want to use Power key and Headphone button
+ on Motorola EZX phones.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcap_keys.
+
+config INPUT_ADXL34X
+ tristate "Analog Devices ADXL34x Three-Axis Digital Accelerometer"
+ default n
+ help
+ Say Y here if you have a Accelerometer interface using the
+ ADXL345/6 controller, and your board-specific initialization
+ code includes that in its table of devices.
+
+ This driver can use either I2C or SPI communication to the
+ ADXL345/6 controller. Select the appropriate method for
+ your system.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called adxl34x.
+
+config INPUT_ADXL34X_I2C
+ tristate "support I2C bus connection"
+ depends on INPUT_ADXL34X && I2C
+ default y
+ help
+ Say Y here if you have ADXL345/6 hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adxl34x-i2c.
+
+config INPUT_ADXL34X_SPI
+ tristate "support SPI bus connection"
+ depends on INPUT_ADXL34X && SPI
+ default y
+ help
+ Say Y here if you have ADXL345/6 hooked to a SPI bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adxl34x-spi.
+
+config INPUT_IMS_PCU
+ tristate "IMS Passenger Control Unit driver"
+ depends on USB
+ depends on LEDS_CLASS
+ help
+ Say Y here if you have system with IMS Rave Passenger Control Unit.
+
+ To compile this driver as a module, choose M here: the module will be
+ called ims_pcu.
+
+config INPUT_CMA3000
+ tristate "VTI CMA3000 Tri-axis accelerometer"
+ help
+ Say Y here if you want to use VTI CMA3000_D0x Accelerometer
+ driver
+
+ This driver currently only supports I2C interface to the
+ controller. Also select the I2C method.
+
+ If unsure, say N
+
+ To compile this driver as a module, choose M here: the
+ module will be called cma3000_d0x.
+
+config INPUT_CMA3000_I2C
+ tristate "Support I2C bus connection"
+ depends on INPUT_CMA3000 && I2C
+ help
+ Say Y here if you want to use VTI CMA3000_D0x Accelerometer
+ through I2C interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cma3000_d0x_i2c.
+
+config INPUT_XEN_KBDDEV_FRONTEND
+ tristate "Xen virtual keyboard and mouse support"
+ depends on XEN
+ default y
+ select XEN_XENBUS_FRONTEND
+ help
+ This driver implements the front-end of the Xen virtual
+ keyboard and mouse device driver. It communicates with a back-end
+ in another domain.
+
+ To compile this driver as a module, choose M here: the
+ module will be called xen-kbdfront.
+
+config INPUT_SIRFSOC_ONKEY
+ bool "CSR SiRFSoC power on/off/suspend key support"
+ depends on ARCH_SIRF && OF
+ default y
+ help
+ Say Y here if you want to support for the SiRFSoC power on/off/suspend key
+ in Linux, after you press the onkey, system will suspend.
+
+ If unsure, say N.
+
+config INPUT_IDEAPAD_SLIDEBAR
+ tristate "IdeaPad Laptop Slidebar"
+ depends on INPUT
+ depends on SERIO_I8042
+ help
+ Say Y here if you have an IdeaPad laptop with a slidebar.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ideapad_slidebar.
+
+config INPUT_SOC_BUTTON_ARRAY
+ tristate "Windows-compatible SoC Button Array"
+ depends on KEYBOARD_GPIO
+ help
+ Say Y here if you have a SoC-based tablet that originally
+ runs Windows 8.
+
+ To compile this driver as a module, choose M here: the
+ module will be called soc_button_array.
+
+config INPUT_DRV260X_HAPTICS
+ tristate "TI DRV260X haptics support"
+ depends on INPUT && I2C && GPIOLIB
+ select INPUT_FF_MEMLESS
+ select REGMAP_I2C
+ help
+ Say Y to enable support for the TI DRV260X haptics driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called drv260x-haptics.
+
+config INPUT_DRV2667_HAPTICS
+ tristate "TI DRV2667 haptics support"
+ depends on INPUT && I2C
+ select INPUT_FF_MEMLESS
+ select REGMAP_I2C
+ help
+ Say Y to enable support for the TI DRV2667 haptics driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called drv260x-haptics.
+
+endif
diff --git a/kernel/drivers/input/misc/Makefile b/kernel/drivers/input/misc/Makefile
new file mode 100644
index 000000000..78ba4c1b8
--- /dev/null
+++ b/kernel/drivers/input/misc/Makefile
@@ -0,0 +1,76 @@
+#
+# Makefile for the input misc drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o
+obj-$(CONFIG_INPUT_88PM80X_ONKEY) += 88pm80x_onkey.o
+obj-$(CONFIG_INPUT_AB8500_PONKEY) += ab8500-ponkey.o
+obj-$(CONFIG_INPUT_AD714X) += ad714x.o
+obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o
+obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o
+obj-$(CONFIG_INPUT_ADXL34X) += adxl34x.o
+obj-$(CONFIG_INPUT_ADXL34X_I2C) += adxl34x-i2c.o
+obj-$(CONFIG_INPUT_ADXL34X_SPI) += adxl34x-spi.o
+obj-$(CONFIG_INPUT_APANEL) += apanel.o
+obj-$(CONFIG_INPUT_ARIZONA_HAPTICS) += arizona-haptics.o
+obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
+obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
+obj-$(CONFIG_INPUT_BFIN_ROTARY) += bfin_rotary.o
+obj-$(CONFIG_INPUT_BMA150) += bma150.o
+obj-$(CONFIG_INPUT_CM109) += cm109.o
+obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o
+obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o
+obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
+obj-$(CONFIG_INPUT_DA9052_ONKEY) += da9052_onkey.o
+obj-$(CONFIG_INPUT_DA9055_ONKEY) += da9055_onkey.o
+obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o
+obj-$(CONFIG_INPUT_E3X0_BUTTON) += e3x0-button.o
+obj-$(CONFIG_INPUT_DRV260X_HAPTICS) += drv260x.o
+obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o
+obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o
+obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o
+obj-$(CONFIG_INPUT_GPIO_TILT_POLLED) += gpio_tilt_polled.o
+obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
+obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o
+obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
+obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
+obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
+obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
+obj-$(CONFIG_INPUT_MAX77693_HAPTIC) += max77693-haptic.o
+obj-$(CONFIG_INPUT_MAX77843_HAPTIC) += max77843-haptic.o
+obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o
+obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o
+obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o
+obj-$(CONFIG_INPUT_MMA8450) += mma8450.o
+obj-$(CONFIG_INPUT_MPU3050) += mpu3050.o
+obj-$(CONFIG_INPUT_PALMAS_PWRBUTTON) += palmas-pwrbutton.o
+obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o
+obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
+obj-$(CONFIG_INPUT_PCF8574) += pcf8574_keypad.o
+obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
+obj-$(CONFIG_INPUT_PM8941_PWRKEY) += pm8941-pwrkey.o
+obj-$(CONFIG_INPUT_PM8XXX_VIBRATOR) += pm8xxx-vibrator.o
+obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY) += pmic8xxx-pwrkey.o
+obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
+obj-$(CONFIG_INPUT_PWM_BEEPER) += pwm-beeper.o
+obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
+obj-$(CONFIG_INPUT_REGULATOR_HAPTIC) += regulator-haptic.o
+obj-$(CONFIG_INPUT_RETU_PWRBUTTON) += retu-pwrbutton.o
+obj-$(CONFIG_INPUT_AXP20X_PEK) += axp20x-pek.o
+obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
+obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
+obj-$(CONFIG_INPUT_SIRFSOC_ONKEY) += sirfsoc-onkey.o
+obj-$(CONFIG_INPUT_SOC_BUTTON_ARRAY) += soc_button_array.o
+obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
+obj-$(CONFIG_INPUT_TPS65218_PWRBUTTON) += tps65218-pwrbutton.o
+obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o
+obj-$(CONFIG_INPUT_TWL4030_VIBRA) += twl4030-vibra.o
+obj-$(CONFIG_INPUT_TWL6040_VIBRA) += twl6040-vibra.o
+obj-$(CONFIG_INPUT_UINPUT) += uinput.o
+obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
+obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o
+obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o
+obj-$(CONFIG_INPUT_YEALINK) += yealink.o
+obj-$(CONFIG_INPUT_IDEAPAD_SLIDEBAR) += ideapad_slidebar.o
diff --git a/kernel/drivers/input/misc/ab8500-ponkey.c b/kernel/drivers/input/misc/ab8500-ponkey.c
new file mode 100644
index 000000000..1f7e15ca5
--- /dev/null
+++ b/kernel/drivers/input/misc/ab8500-ponkey.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ *
+ * AB8500 Power-On Key handler
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+
+/**
+ * struct ab8500_ponkey - ab8500 ponkey information
+ * @input_dev: pointer to input device
+ * @ab8500: ab8500 parent
+ * @irq_dbf: irq number for falling transition
+ * @irq_dbr: irq number for rising transition
+ */
+struct ab8500_ponkey {
+ struct input_dev *idev;
+ struct ab8500 *ab8500;
+ int irq_dbf;
+ int irq_dbr;
+};
+
+/* AB8500 gives us an interrupt when ONKEY is held */
+static irqreturn_t ab8500_ponkey_handler(int irq, void *data)
+{
+ struct ab8500_ponkey *ponkey = data;
+
+ if (irq == ponkey->irq_dbf)
+ input_report_key(ponkey->idev, KEY_POWER, true);
+ else if (irq == ponkey->irq_dbr)
+ input_report_key(ponkey->idev, KEY_POWER, false);
+
+ input_sync(ponkey->idev);
+
+ return IRQ_HANDLED;
+}
+
+static int ab8500_ponkey_probe(struct platform_device *pdev)
+{
+ struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
+ struct ab8500_ponkey *ponkey;
+ struct input_dev *input;
+ int irq_dbf, irq_dbr;
+ int error;
+
+ irq_dbf = platform_get_irq_byname(pdev, "ONKEY_DBF");
+ if (irq_dbf < 0) {
+ dev_err(&pdev->dev, "No IRQ for ONKEY_DBF, error=%d\n", irq_dbf);
+ return irq_dbf;
+ }
+
+ irq_dbr = platform_get_irq_byname(pdev, "ONKEY_DBR");
+ if (irq_dbr < 0) {
+ dev_err(&pdev->dev, "No IRQ for ONKEY_DBR, error=%d\n", irq_dbr);
+ return irq_dbr;
+ }
+
+ ponkey = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_ponkey),
+ GFP_KERNEL);
+ if (!ponkey)
+ return -ENOMEM;
+
+ input = devm_input_allocate_device(&pdev->dev);
+ if (!input)
+ return -ENOMEM;
+
+ ponkey->idev = input;
+ ponkey->ab8500 = ab8500;
+ ponkey->irq_dbf = irq_dbf;
+ ponkey->irq_dbr = irq_dbr;
+
+ input->name = "AB8500 POn(PowerOn) Key";
+ input->dev.parent = &pdev->dev;
+
+ input_set_capability(input, EV_KEY, KEY_POWER);
+
+ error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbf,
+ ab8500_ponkey_handler, 0,
+ "ab8500-ponkey-dbf", ponkey);
+ if (error < 0) {
+ dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
+ ponkey->irq_dbf, error);
+ return error;
+ }
+
+ error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbr,
+ ab8500_ponkey_handler, 0,
+ "ab8500-ponkey-dbr", ponkey);
+ if (error < 0) {
+ dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
+ ponkey->irq_dbr, error);
+ return error;
+ }
+
+ error = input_register_device(ponkey->idev);
+ if (error) {
+ dev_err(ab8500->dev, "Can't register input device: %d\n", error);
+ return error;
+ }
+
+ platform_set_drvdata(pdev, ponkey);
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id ab8500_ponkey_match[] = {
+ { .compatible = "stericsson,ab8500-ponkey", },
+ {}
+};
+#endif
+
+static struct platform_driver ab8500_ponkey_driver = {
+ .driver = {
+ .name = "ab8500-poweron-key",
+ .of_match_table = of_match_ptr(ab8500_ponkey_match),
+ },
+ .probe = ab8500_ponkey_probe,
+};
+module_platform_driver(ab8500_ponkey_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
+MODULE_DESCRIPTION("ST-Ericsson AB8500 Power-ON(Pon) Key driver");
diff --git a/kernel/drivers/input/misc/ad714x-i2c.c b/kernel/drivers/input/misc/ad714x-i2c.c
new file mode 100644
index 000000000..189bdc8e9
--- /dev/null
+++ b/kernel/drivers/input/misc/ad714x-i2c.c
@@ -0,0 +1,121 @@
+/*
+ * AD714X CapTouch Programmable Controller driver (I2C bus)
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_I2C */
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pm.h>
+#include "ad714x.h"
+
+static int __maybe_unused ad714x_i2c_suspend(struct device *dev)
+{
+ return ad714x_disable(i2c_get_clientdata(to_i2c_client(dev)));
+}
+
+static int __maybe_unused ad714x_i2c_resume(struct device *dev)
+{
+ return ad714x_enable(i2c_get_clientdata(to_i2c_client(dev)));
+}
+
+static SIMPLE_DEV_PM_OPS(ad714x_i2c_pm, ad714x_i2c_suspend, ad714x_i2c_resume);
+
+static int ad714x_i2c_write(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short data)
+{
+ struct i2c_client *client = to_i2c_client(chip->dev);
+ int error;
+
+ chip->xfer_buf[0] = cpu_to_be16(reg);
+ chip->xfer_buf[1] = cpu_to_be16(data);
+
+ error = i2c_master_send(client, (u8 *)chip->xfer_buf,
+ 2 * sizeof(*chip->xfer_buf));
+ if (unlikely(error < 0)) {
+ dev_err(&client->dev, "I2C write error: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int ad714x_i2c_read(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short *data, size_t len)
+{
+ struct i2c_client *client = to_i2c_client(chip->dev);
+ int i;
+ int error;
+
+ chip->xfer_buf[0] = cpu_to_be16(reg);
+
+ error = i2c_master_send(client, (u8 *)chip->xfer_buf,
+ sizeof(*chip->xfer_buf));
+ if (error >= 0)
+ error = i2c_master_recv(client, (u8 *)chip->xfer_buf,
+ len * sizeof(*chip->xfer_buf));
+
+ if (unlikely(error < 0)) {
+ dev_err(&client->dev, "I2C read error: %d\n", error);
+ return error;
+ }
+
+ for (i = 0; i < len; i++)
+ data[i] = be16_to_cpu(chip->xfer_buf[i]);
+
+ return 0;
+}
+
+static int ad714x_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ad714x_chip *chip;
+
+ chip = ad714x_probe(&client->dev, BUS_I2C, client->irq,
+ ad714x_i2c_read, ad714x_i2c_write);
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+
+ i2c_set_clientdata(client, chip);
+
+ return 0;
+}
+
+static int ad714x_i2c_remove(struct i2c_client *client)
+{
+ struct ad714x_chip *chip = i2c_get_clientdata(client);
+
+ ad714x_remove(chip);
+
+ return 0;
+}
+
+static const struct i2c_device_id ad714x_id[] = {
+ { "ad7142_captouch", 0 },
+ { "ad7143_captouch", 0 },
+ { "ad7147_captouch", 0 },
+ { "ad7147a_captouch", 0 },
+ { "ad7148_captouch", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ad714x_id);
+
+static struct i2c_driver ad714x_i2c_driver = {
+ .driver = {
+ .name = "ad714x_captouch",
+ .pm = &ad714x_i2c_pm,
+ },
+ .probe = ad714x_i2c_probe,
+ .remove = ad714x_i2c_remove,
+ .id_table = ad714x_id,
+};
+
+module_i2c_driver(ad714x_i2c_driver);
+
+MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor I2C Bus Driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/ad714x-spi.c b/kernel/drivers/input/misc/ad714x-spi.c
new file mode 100644
index 000000000..a79e50b58
--- /dev/null
+++ b/kernel/drivers/input/misc/ad714x-spi.c
@@ -0,0 +1,127 @@
+/*
+ * AD714X CapTouch Programmable Controller driver (SPI bus)
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_SPI */
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/pm.h>
+#include <linux/types.h>
+#include "ad714x.h"
+
+#define AD714x_SPI_CMD_PREFIX 0xE000 /* bits 15:11 */
+#define AD714x_SPI_READ BIT(10)
+
+static int __maybe_unused ad714x_spi_suspend(struct device *dev)
+{
+ return ad714x_disable(spi_get_drvdata(to_spi_device(dev)));
+}
+
+static int __maybe_unused ad714x_spi_resume(struct device *dev)
+{
+ return ad714x_enable(spi_get_drvdata(to_spi_device(dev)));
+}
+
+static SIMPLE_DEV_PM_OPS(ad714x_spi_pm, ad714x_spi_suspend, ad714x_spi_resume);
+
+static int ad714x_spi_read(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short *data, size_t len)
+{
+ struct spi_device *spi = to_spi_device(chip->dev);
+ struct spi_message message;
+ struct spi_transfer xfer[2];
+ int i;
+ int error;
+
+ spi_message_init(&message);
+ memset(xfer, 0, sizeof(xfer));
+
+ chip->xfer_buf[0] = cpu_to_be16(AD714x_SPI_CMD_PREFIX |
+ AD714x_SPI_READ | reg);
+ xfer[0].tx_buf = &chip->xfer_buf[0];
+ xfer[0].len = sizeof(chip->xfer_buf[0]);
+ spi_message_add_tail(&xfer[0], &message);
+
+ xfer[1].rx_buf = &chip->xfer_buf[1];
+ xfer[1].len = sizeof(chip->xfer_buf[1]) * len;
+ spi_message_add_tail(&xfer[1], &message);
+
+ error = spi_sync(spi, &message);
+ if (unlikely(error)) {
+ dev_err(chip->dev, "SPI read error: %d\n", error);
+ return error;
+ }
+
+ for (i = 0; i < len; i++)
+ data[i] = be16_to_cpu(chip->xfer_buf[i + 1]);
+
+ return 0;
+}
+
+static int ad714x_spi_write(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short data)
+{
+ struct spi_device *spi = to_spi_device(chip->dev);
+ int error;
+
+ chip->xfer_buf[0] = cpu_to_be16(AD714x_SPI_CMD_PREFIX | reg);
+ chip->xfer_buf[1] = cpu_to_be16(data);
+
+ error = spi_write(spi, (u8 *)chip->xfer_buf,
+ 2 * sizeof(*chip->xfer_buf));
+ if (unlikely(error)) {
+ dev_err(chip->dev, "SPI write error: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int ad714x_spi_probe(struct spi_device *spi)
+{
+ struct ad714x_chip *chip;
+ int err;
+
+ spi->bits_per_word = 8;
+ err = spi_setup(spi);
+ if (err < 0)
+ return err;
+
+ chip = ad714x_probe(&spi->dev, BUS_SPI, spi->irq,
+ ad714x_spi_read, ad714x_spi_write);
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+
+ spi_set_drvdata(spi, chip);
+
+ return 0;
+}
+
+static int ad714x_spi_remove(struct spi_device *spi)
+{
+ struct ad714x_chip *chip = spi_get_drvdata(spi);
+
+ ad714x_remove(chip);
+
+ return 0;
+}
+
+static struct spi_driver ad714x_spi_driver = {
+ .driver = {
+ .name = "ad714x_captouch",
+ .owner = THIS_MODULE,
+ .pm = &ad714x_spi_pm,
+ },
+ .probe = ad714x_spi_probe,
+ .remove = ad714x_spi_remove,
+};
+
+module_spi_driver(ad714x_spi_driver);
+
+MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor SPI Bus Driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/ad714x.c b/kernel/drivers/input/misc/ad714x.c
new file mode 100644
index 000000000..7a61e9ee6
--- /dev/null
+++ b/kernel/drivers/input/misc/ad714x.c
@@ -0,0 +1,1260 @@
+/*
+ * AD714X CapTouch Programmable Controller driver supporting AD7142/3/7/8/7A
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/input/ad714x.h>
+#include <linux/module.h>
+#include "ad714x.h"
+
+#define AD714X_PWR_CTRL 0x0
+#define AD714X_STG_CAL_EN_REG 0x1
+#define AD714X_AMB_COMP_CTRL0_REG 0x2
+#define AD714X_PARTID_REG 0x17
+#define AD7142_PARTID 0xE620
+#define AD7143_PARTID 0xE630
+#define AD7147_PARTID 0x1470
+#define AD7148_PARTID 0x1480
+#define AD714X_STAGECFG_REG 0x80
+#define AD714X_SYSCFG_REG 0x0
+
+#define STG_LOW_INT_EN_REG 0x5
+#define STG_HIGH_INT_EN_REG 0x6
+#define STG_COM_INT_EN_REG 0x7
+#define STG_LOW_INT_STA_REG 0x8
+#define STG_HIGH_INT_STA_REG 0x9
+#define STG_COM_INT_STA_REG 0xA
+
+#define CDC_RESULT_S0 0xB
+#define CDC_RESULT_S1 0xC
+#define CDC_RESULT_S2 0xD
+#define CDC_RESULT_S3 0xE
+#define CDC_RESULT_S4 0xF
+#define CDC_RESULT_S5 0x10
+#define CDC_RESULT_S6 0x11
+#define CDC_RESULT_S7 0x12
+#define CDC_RESULT_S8 0x13
+#define CDC_RESULT_S9 0x14
+#define CDC_RESULT_S10 0x15
+#define CDC_RESULT_S11 0x16
+
+#define STAGE0_AMBIENT 0xF1
+#define STAGE1_AMBIENT 0x115
+#define STAGE2_AMBIENT 0x139
+#define STAGE3_AMBIENT 0x15D
+#define STAGE4_AMBIENT 0x181
+#define STAGE5_AMBIENT 0x1A5
+#define STAGE6_AMBIENT 0x1C9
+#define STAGE7_AMBIENT 0x1ED
+#define STAGE8_AMBIENT 0x211
+#define STAGE9_AMBIENT 0x234
+#define STAGE10_AMBIENT 0x259
+#define STAGE11_AMBIENT 0x27D
+
+#define PER_STAGE_REG_NUM 36
+#define STAGE_CFGREG_NUM 8
+#define SYS_CFGREG_NUM 8
+
+/*
+ * driver information which will be used to maintain the software flow
+ */
+enum ad714x_device_state { IDLE, JITTER, ACTIVE, SPACE };
+
+struct ad714x_slider_drv {
+ int highest_stage;
+ int abs_pos;
+ int flt_pos;
+ enum ad714x_device_state state;
+ struct input_dev *input;
+};
+
+struct ad714x_wheel_drv {
+ int abs_pos;
+ int flt_pos;
+ int pre_highest_stage;
+ int highest_stage;
+ enum ad714x_device_state state;
+ struct input_dev *input;
+};
+
+struct ad714x_touchpad_drv {
+ int x_highest_stage;
+ int x_flt_pos;
+ int x_abs_pos;
+ int y_highest_stage;
+ int y_flt_pos;
+ int y_abs_pos;
+ int left_ep;
+ int left_ep_val;
+ int right_ep;
+ int right_ep_val;
+ int top_ep;
+ int top_ep_val;
+ int bottom_ep;
+ int bottom_ep_val;
+ enum ad714x_device_state state;
+ struct input_dev *input;
+};
+
+struct ad714x_button_drv {
+ enum ad714x_device_state state;
+ /*
+ * Unlike slider/wheel/touchpad, all buttons point to
+ * same input_dev instance
+ */
+ struct input_dev *input;
+};
+
+struct ad714x_driver_data {
+ struct ad714x_slider_drv *slider;
+ struct ad714x_wheel_drv *wheel;
+ struct ad714x_touchpad_drv *touchpad;
+ struct ad714x_button_drv *button;
+};
+
+/*
+ * information to integrate all things which will be private data
+ * of spi/i2c device
+ */
+
+static void ad714x_use_com_int(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage)
+{
+ unsigned short data;
+ unsigned short mask;
+
+ mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1);
+
+ ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1);
+ data |= 1 << end_stage;
+ ad714x->write(ad714x, STG_COM_INT_EN_REG, data);
+
+ ad714x->read(ad714x, STG_HIGH_INT_EN_REG, &data, 1);
+ data &= ~mask;
+ ad714x->write(ad714x, STG_HIGH_INT_EN_REG, data);
+}
+
+static void ad714x_use_thr_int(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage)
+{
+ unsigned short data;
+ unsigned short mask;
+
+ mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1);
+
+ ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1);
+ data &= ~(1 << end_stage);
+ ad714x->write(ad714x, STG_COM_INT_EN_REG, data);
+
+ ad714x->read(ad714x, STG_HIGH_INT_EN_REG, &data, 1);
+ data |= mask;
+ ad714x->write(ad714x, STG_HIGH_INT_EN_REG, data);
+}
+
+static int ad714x_cal_highest_stage(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage)
+{
+ int max_res = 0;
+ int max_idx = 0;
+ int i;
+
+ for (i = start_stage; i <= end_stage; i++) {
+ if (ad714x->sensor_val[i] > max_res) {
+ max_res = ad714x->sensor_val[i];
+ max_idx = i;
+ }
+ }
+
+ return max_idx;
+}
+
+static int ad714x_cal_abs_pos(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage,
+ int highest_stage, int max_coord)
+{
+ int a_param, b_param;
+
+ if (highest_stage == start_stage) {
+ a_param = ad714x->sensor_val[start_stage + 1];
+ b_param = ad714x->sensor_val[start_stage] +
+ ad714x->sensor_val[start_stage + 1];
+ } else if (highest_stage == end_stage) {
+ a_param = ad714x->sensor_val[end_stage] *
+ (end_stage - start_stage) +
+ ad714x->sensor_val[end_stage - 1] *
+ (end_stage - start_stage - 1);
+ b_param = ad714x->sensor_val[end_stage] +
+ ad714x->sensor_val[end_stage - 1];
+ } else {
+ a_param = ad714x->sensor_val[highest_stage] *
+ (highest_stage - start_stage) +
+ ad714x->sensor_val[highest_stage - 1] *
+ (highest_stage - start_stage - 1) +
+ ad714x->sensor_val[highest_stage + 1] *
+ (highest_stage - start_stage + 1);
+ b_param = ad714x->sensor_val[highest_stage] +
+ ad714x->sensor_val[highest_stage - 1] +
+ ad714x->sensor_val[highest_stage + 1];
+ }
+
+ return (max_coord / (end_stage - start_stage)) * a_param / b_param;
+}
+
+/*
+ * One button can connect to multi positive and negative of CDCs
+ * Multi-buttons can connect to same positive/negative of one CDC
+ */
+static void ad714x_button_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_button_plat *hw = &ad714x->hw->button[idx];
+ struct ad714x_button_drv *sw = &ad714x->sw->button[idx];
+
+ switch (sw->state) {
+ case IDLE:
+ if (((ad714x->h_state & hw->h_mask) == hw->h_mask) &&
+ ((ad714x->l_state & hw->l_mask) == hw->l_mask)) {
+ dev_dbg(ad714x->dev, "button %d touched\n", idx);
+ input_report_key(sw->input, hw->keycode, 1);
+ input_sync(sw->input);
+ sw->state = ACTIVE;
+ }
+ break;
+
+ case ACTIVE:
+ if (((ad714x->h_state & hw->h_mask) != hw->h_mask) ||
+ ((ad714x->l_state & hw->l_mask) != hw->l_mask)) {
+ dev_dbg(ad714x->dev, "button %d released\n", idx);
+ input_report_key(sw->input, hw->keycode, 0);
+ input_sync(sw->input);
+ sw->state = IDLE;
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/*
+ * The response of a sensor is defined by the absolute number of codes
+ * between the current CDC value and the ambient value.
+ */
+static void ad714x_slider_cal_sensor_val(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ int i;
+
+ ad714x->read(ad714x, CDC_RESULT_S0 + hw->start_stage,
+ &ad714x->adc_reg[hw->start_stage],
+ hw->end_stage - hw->start_stage + 1);
+
+ for (i = hw->start_stage; i <= hw->end_stage; i++) {
+ ad714x->read(ad714x, STAGE0_AMBIENT + i * PER_STAGE_REG_NUM,
+ &ad714x->amb_reg[i], 1);
+
+ ad714x->sensor_val[i] =
+ abs(ad714x->adc_reg[i] - ad714x->amb_reg[i]);
+ }
+}
+
+static void ad714x_slider_cal_highest_stage(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+
+ sw->highest_stage = ad714x_cal_highest_stage(ad714x, hw->start_stage,
+ hw->end_stage);
+
+ dev_dbg(ad714x->dev, "slider %d highest_stage:%d\n", idx,
+ sw->highest_stage);
+}
+
+/*
+ * The formulae are very straight forward. It uses the sensor with the
+ * highest response and the 2 adjacent ones.
+ * When Sensor 0 has the highest response, only sensor 0 and sensor 1
+ * are used in the calculations. Similarly when the last sensor has the
+ * highest response, only the last sensor and the second last sensors
+ * are used in the calculations.
+ *
+ * For i= idx_of_peak_Sensor-1 to i= idx_of_peak_Sensor+1
+ * v += Sensor response(i)*i
+ * w += Sensor response(i)
+ * POS=(Number_of_Positions_Wanted/(Number_of_Sensors_Used-1)) *(v/w)
+ */
+static void ad714x_slider_cal_abs_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+
+ sw->abs_pos = ad714x_cal_abs_pos(ad714x, hw->start_stage, hw->end_stage,
+ sw->highest_stage, hw->max_coord);
+
+ dev_dbg(ad714x->dev, "slider %d absolute position:%d\n", idx,
+ sw->abs_pos);
+}
+
+/*
+ * To minimise the Impact of the noise on the algorithm, ADI developed a
+ * routine that filters the CDC results after they have been read by the
+ * host processor.
+ * The filter used is an Infinite Input Response(IIR) filter implemented
+ * in firmware and attenuates the noise on the CDC results after they've
+ * been read by the host processor.
+ * Filtered_CDC_result = (Filtered_CDC_result * (10 - Coefficient) +
+ * Latest_CDC_result * Coefficient)/10
+ */
+static void ad714x_slider_cal_flt_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+
+ sw->flt_pos = (sw->flt_pos * (10 - 4) +
+ sw->abs_pos * 4)/10;
+
+ dev_dbg(ad714x->dev, "slider %d filter position:%d\n", idx,
+ sw->flt_pos);
+}
+
+static void ad714x_slider_use_com_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+
+ ad714x_use_com_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_slider_use_thr_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+
+ ad714x_use_thr_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_slider_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+ unsigned short h_state, c_state;
+ unsigned short mask;
+
+ mask = ((1 << (hw->end_stage + 1)) - 1) - ((1 << hw->start_stage) - 1);
+
+ h_state = ad714x->h_state & mask;
+ c_state = ad714x->c_state & mask;
+
+ switch (sw->state) {
+ case IDLE:
+ if (h_state) {
+ sw->state = JITTER;
+ /* In End of Conversion interrupt mode, the AD714X
+ * continuously generates hardware interrupts.
+ */
+ ad714x_slider_use_com_int(ad714x, idx);
+ dev_dbg(ad714x->dev, "slider %d touched\n", idx);
+ }
+ break;
+
+ case JITTER:
+ if (c_state == mask) {
+ ad714x_slider_cal_sensor_val(ad714x, idx);
+ ad714x_slider_cal_highest_stage(ad714x, idx);
+ ad714x_slider_cal_abs_pos(ad714x, idx);
+ sw->flt_pos = sw->abs_pos;
+ sw->state = ACTIVE;
+ }
+ break;
+
+ case ACTIVE:
+ if (c_state == mask) {
+ if (h_state) {
+ ad714x_slider_cal_sensor_val(ad714x, idx);
+ ad714x_slider_cal_highest_stage(ad714x, idx);
+ ad714x_slider_cal_abs_pos(ad714x, idx);
+ ad714x_slider_cal_flt_pos(ad714x, idx);
+ input_report_abs(sw->input, ABS_X, sw->flt_pos);
+ input_report_key(sw->input, BTN_TOUCH, 1);
+ } else {
+ /* When the user lifts off the sensor, configure
+ * the AD714X back to threshold interrupt mode.
+ */
+ ad714x_slider_use_thr_int(ad714x, idx);
+ sw->state = IDLE;
+ input_report_key(sw->input, BTN_TOUCH, 0);
+ dev_dbg(ad714x->dev, "slider %d released\n",
+ idx);
+ }
+ input_sync(sw->input);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/*
+ * When the scroll wheel is activated, we compute the absolute position based
+ * on the sensor values. To calculate the position, we first determine the
+ * sensor that has the greatest response among the 8 sensors that constitutes
+ * the scrollwheel. Then we determined the 2 sensors on either sides of the
+ * sensor with the highest response and we apply weights to these sensors.
+ */
+static void ad714x_wheel_cal_highest_stage(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+
+ sw->pre_highest_stage = sw->highest_stage;
+ sw->highest_stage = ad714x_cal_highest_stage(ad714x, hw->start_stage,
+ hw->end_stage);
+
+ dev_dbg(ad714x->dev, "wheel %d highest_stage:%d\n", idx,
+ sw->highest_stage);
+}
+
+static void ad714x_wheel_cal_sensor_val(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ int i;
+
+ ad714x->read(ad714x, CDC_RESULT_S0 + hw->start_stage,
+ &ad714x->adc_reg[hw->start_stage],
+ hw->end_stage - hw->start_stage + 1);
+
+ for (i = hw->start_stage; i <= hw->end_stage; i++) {
+ ad714x->read(ad714x, STAGE0_AMBIENT + i * PER_STAGE_REG_NUM,
+ &ad714x->amb_reg[i], 1);
+ if (ad714x->adc_reg[i] > ad714x->amb_reg[i])
+ ad714x->sensor_val[i] =
+ ad714x->adc_reg[i] - ad714x->amb_reg[i];
+ else
+ ad714x->sensor_val[i] = 0;
+ }
+}
+
+/*
+ * When the scroll wheel is activated, we compute the absolute position based
+ * on the sensor values. To calculate the position, we first determine the
+ * sensor that has the greatest response among the sensors that constitutes
+ * the scrollwheel. Then we determined the sensors on either sides of the
+ * sensor with the highest response and we apply weights to these sensors. The
+ * result of this computation gives us the mean value.
+ */
+
+static void ad714x_wheel_cal_abs_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+ int stage_num = hw->end_stage - hw->start_stage + 1;
+ int first_before, highest, first_after;
+ int a_param, b_param;
+
+ first_before = (sw->highest_stage + stage_num - 1) % stage_num;
+ highest = sw->highest_stage;
+ first_after = (sw->highest_stage + stage_num + 1) % stage_num;
+
+ a_param = ad714x->sensor_val[highest] *
+ (highest - hw->start_stage) +
+ ad714x->sensor_val[first_before] *
+ (highest - hw->start_stage - 1) +
+ ad714x->sensor_val[first_after] *
+ (highest - hw->start_stage + 1);
+ b_param = ad714x->sensor_val[highest] +
+ ad714x->sensor_val[first_before] +
+ ad714x->sensor_val[first_after];
+
+ sw->abs_pos = ((hw->max_coord / (hw->end_stage - hw->start_stage)) *
+ a_param) / b_param;
+
+ if (sw->abs_pos > hw->max_coord)
+ sw->abs_pos = hw->max_coord;
+ else if (sw->abs_pos < 0)
+ sw->abs_pos = 0;
+}
+
+static void ad714x_wheel_cal_flt_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+ if (((sw->pre_highest_stage == hw->end_stage) &&
+ (sw->highest_stage == hw->start_stage)) ||
+ ((sw->pre_highest_stage == hw->start_stage) &&
+ (sw->highest_stage == hw->end_stage)))
+ sw->flt_pos = sw->abs_pos;
+ else
+ sw->flt_pos = ((sw->flt_pos * 30) + (sw->abs_pos * 71)) / 100;
+
+ if (sw->flt_pos > hw->max_coord)
+ sw->flt_pos = hw->max_coord;
+}
+
+static void ad714x_wheel_use_com_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+
+ ad714x_use_com_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_wheel_use_thr_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+
+ ad714x_use_thr_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_wheel_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+ unsigned short h_state, c_state;
+ unsigned short mask;
+
+ mask = ((1 << (hw->end_stage + 1)) - 1) - ((1 << hw->start_stage) - 1);
+
+ h_state = ad714x->h_state & mask;
+ c_state = ad714x->c_state & mask;
+
+ switch (sw->state) {
+ case IDLE:
+ if (h_state) {
+ sw->state = JITTER;
+ /* In End of Conversion interrupt mode, the AD714X
+ * continuously generates hardware interrupts.
+ */
+ ad714x_wheel_use_com_int(ad714x, idx);
+ dev_dbg(ad714x->dev, "wheel %d touched\n", idx);
+ }
+ break;
+
+ case JITTER:
+ if (c_state == mask) {
+ ad714x_wheel_cal_sensor_val(ad714x, idx);
+ ad714x_wheel_cal_highest_stage(ad714x, idx);
+ ad714x_wheel_cal_abs_pos(ad714x, idx);
+ sw->flt_pos = sw->abs_pos;
+ sw->state = ACTIVE;
+ }
+ break;
+
+ case ACTIVE:
+ if (c_state == mask) {
+ if (h_state) {
+ ad714x_wheel_cal_sensor_val(ad714x, idx);
+ ad714x_wheel_cal_highest_stage(ad714x, idx);
+ ad714x_wheel_cal_abs_pos(ad714x, idx);
+ ad714x_wheel_cal_flt_pos(ad714x, idx);
+ input_report_abs(sw->input, ABS_WHEEL,
+ sw->flt_pos);
+ input_report_key(sw->input, BTN_TOUCH, 1);
+ } else {
+ /* When the user lifts off the sensor, configure
+ * the AD714X back to threshold interrupt mode.
+ */
+ ad714x_wheel_use_thr_int(ad714x, idx);
+ sw->state = IDLE;
+ input_report_key(sw->input, BTN_TOUCH, 0);
+
+ dev_dbg(ad714x->dev, "wheel %d released\n",
+ idx);
+ }
+ input_sync(sw->input);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void touchpad_cal_sensor_val(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ int i;
+
+ ad714x->read(ad714x, CDC_RESULT_S0 + hw->x_start_stage,
+ &ad714x->adc_reg[hw->x_start_stage],
+ hw->x_end_stage - hw->x_start_stage + 1);
+
+ for (i = hw->x_start_stage; i <= hw->x_end_stage; i++) {
+ ad714x->read(ad714x, STAGE0_AMBIENT + i * PER_STAGE_REG_NUM,
+ &ad714x->amb_reg[i], 1);
+ if (ad714x->adc_reg[i] > ad714x->amb_reg[i])
+ ad714x->sensor_val[i] =
+ ad714x->adc_reg[i] - ad714x->amb_reg[i];
+ else
+ ad714x->sensor_val[i] = 0;
+ }
+}
+
+static void touchpad_cal_highest_stage(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+
+ sw->x_highest_stage = ad714x_cal_highest_stage(ad714x,
+ hw->x_start_stage, hw->x_end_stage);
+ sw->y_highest_stage = ad714x_cal_highest_stage(ad714x,
+ hw->y_start_stage, hw->y_end_stage);
+
+ dev_dbg(ad714x->dev,
+ "touchpad %d x_highest_stage:%d, y_highest_stage:%d\n",
+ idx, sw->x_highest_stage, sw->y_highest_stage);
+}
+
+/*
+ * If 2 fingers are touching the sensor then 2 peaks can be observed in the
+ * distribution.
+ * The arithmetic doesn't support to get absolute coordinates for multi-touch
+ * yet.
+ */
+static int touchpad_check_second_peak(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+ int i;
+
+ for (i = hw->x_start_stage; i < sw->x_highest_stage; i++) {
+ if ((ad714x->sensor_val[i] - ad714x->sensor_val[i + 1])
+ > (ad714x->sensor_val[i + 1] / 10))
+ return 1;
+ }
+
+ for (i = sw->x_highest_stage; i < hw->x_end_stage; i++) {
+ if ((ad714x->sensor_val[i + 1] - ad714x->sensor_val[i])
+ > (ad714x->sensor_val[i] / 10))
+ return 1;
+ }
+
+ for (i = hw->y_start_stage; i < sw->y_highest_stage; i++) {
+ if ((ad714x->sensor_val[i] - ad714x->sensor_val[i + 1])
+ > (ad714x->sensor_val[i + 1] / 10))
+ return 1;
+ }
+
+ for (i = sw->y_highest_stage; i < hw->y_end_stage; i++) {
+ if ((ad714x->sensor_val[i + 1] - ad714x->sensor_val[i])
+ > (ad714x->sensor_val[i] / 10))
+ return 1;
+ }
+
+ return 0;
+}
+
+/*
+ * If only one finger is used to activate the touch pad then only 1 peak will be
+ * registered in the distribution. This peak and the 2 adjacent sensors will be
+ * used in the calculation of the absolute position. This will prevent hand
+ * shadows to affect the absolute position calculation.
+ */
+static void touchpad_cal_abs_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+
+ sw->x_abs_pos = ad714x_cal_abs_pos(ad714x, hw->x_start_stage,
+ hw->x_end_stage, sw->x_highest_stage, hw->x_max_coord);
+ sw->y_abs_pos = ad714x_cal_abs_pos(ad714x, hw->y_start_stage,
+ hw->y_end_stage, sw->y_highest_stage, hw->y_max_coord);
+
+ dev_dbg(ad714x->dev, "touchpad %d absolute position:(%d, %d)\n", idx,
+ sw->x_abs_pos, sw->y_abs_pos);
+}
+
+static void touchpad_cal_flt_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+
+ sw->x_flt_pos = (sw->x_flt_pos * (10 - 4) +
+ sw->x_abs_pos * 4)/10;
+ sw->y_flt_pos = (sw->y_flt_pos * (10 - 4) +
+ sw->y_abs_pos * 4)/10;
+
+ dev_dbg(ad714x->dev, "touchpad %d filter position:(%d, %d)\n",
+ idx, sw->x_flt_pos, sw->y_flt_pos);
+}
+
+/*
+ * To prevent distortion from showing in the absolute position, it is
+ * necessary to detect the end points. When endpoints are detected, the
+ * driver stops updating the status variables with absolute positions.
+ * End points are detected on the 4 edges of the touchpad sensor. The
+ * method to detect them is the same for all 4.
+ * To detect the end points, the firmware computes the difference in
+ * percent between the sensor on the edge and the adjacent one. The
+ * difference is calculated in percent in order to make the end point
+ * detection independent of the pressure.
+ */
+
+#define LEFT_END_POINT_DETECTION_LEVEL 550
+#define RIGHT_END_POINT_DETECTION_LEVEL 750
+#define LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL 850
+#define TOP_END_POINT_DETECTION_LEVEL 550
+#define BOTTOM_END_POINT_DETECTION_LEVEL 950
+#define TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL 700
+static int touchpad_check_endpoint(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+ int percent_sensor_diff;
+
+ /* left endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->x_start_stage] -
+ ad714x->sensor_val[hw->x_start_stage + 1]) * 100 /
+ ad714x->sensor_val[hw->x_start_stage + 1];
+ if (!sw->left_ep) {
+ if (percent_sensor_diff >= LEFT_END_POINT_DETECTION_LEVEL) {
+ sw->left_ep = 1;
+ sw->left_ep_val =
+ ad714x->sensor_val[hw->x_start_stage + 1];
+ }
+ } else {
+ if ((percent_sensor_diff < LEFT_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->x_start_stage + 1] >
+ LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL + sw->left_ep_val))
+ sw->left_ep = 0;
+ }
+
+ /* right endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->x_end_stage] -
+ ad714x->sensor_val[hw->x_end_stage - 1]) * 100 /
+ ad714x->sensor_val[hw->x_end_stage - 1];
+ if (!sw->right_ep) {
+ if (percent_sensor_diff >= RIGHT_END_POINT_DETECTION_LEVEL) {
+ sw->right_ep = 1;
+ sw->right_ep_val =
+ ad714x->sensor_val[hw->x_end_stage - 1];
+ }
+ } else {
+ if ((percent_sensor_diff < RIGHT_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->x_end_stage - 1] >
+ LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL + sw->right_ep_val))
+ sw->right_ep = 0;
+ }
+
+ /* top endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->y_start_stage] -
+ ad714x->sensor_val[hw->y_start_stage + 1]) * 100 /
+ ad714x->sensor_val[hw->y_start_stage + 1];
+ if (!sw->top_ep) {
+ if (percent_sensor_diff >= TOP_END_POINT_DETECTION_LEVEL) {
+ sw->top_ep = 1;
+ sw->top_ep_val =
+ ad714x->sensor_val[hw->y_start_stage + 1];
+ }
+ } else {
+ if ((percent_sensor_diff < TOP_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->y_start_stage + 1] >
+ TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL + sw->top_ep_val))
+ sw->top_ep = 0;
+ }
+
+ /* bottom endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->y_end_stage] -
+ ad714x->sensor_val[hw->y_end_stage - 1]) * 100 /
+ ad714x->sensor_val[hw->y_end_stage - 1];
+ if (!sw->bottom_ep) {
+ if (percent_sensor_diff >= BOTTOM_END_POINT_DETECTION_LEVEL) {
+ sw->bottom_ep = 1;
+ sw->bottom_ep_val =
+ ad714x->sensor_val[hw->y_end_stage - 1];
+ }
+ } else {
+ if ((percent_sensor_diff < BOTTOM_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->y_end_stage - 1] >
+ TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL + sw->bottom_ep_val))
+ sw->bottom_ep = 0;
+ }
+
+ return sw->left_ep || sw->right_ep || sw->top_ep || sw->bottom_ep;
+}
+
+static void touchpad_use_com_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+
+ ad714x_use_com_int(ad714x, hw->x_start_stage, hw->x_end_stage);
+}
+
+static void touchpad_use_thr_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+
+ ad714x_use_thr_int(ad714x, hw->x_start_stage, hw->x_end_stage);
+ ad714x_use_thr_int(ad714x, hw->y_start_stage, hw->y_end_stage);
+}
+
+static void ad714x_touchpad_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+ unsigned short h_state, c_state;
+ unsigned short mask;
+
+ mask = (((1 << (hw->x_end_stage + 1)) - 1) -
+ ((1 << hw->x_start_stage) - 1)) +
+ (((1 << (hw->y_end_stage + 1)) - 1) -
+ ((1 << hw->y_start_stage) - 1));
+
+ h_state = ad714x->h_state & mask;
+ c_state = ad714x->c_state & mask;
+
+ switch (sw->state) {
+ case IDLE:
+ if (h_state) {
+ sw->state = JITTER;
+ /* In End of Conversion interrupt mode, the AD714X
+ * continuously generates hardware interrupts.
+ */
+ touchpad_use_com_int(ad714x, idx);
+ dev_dbg(ad714x->dev, "touchpad %d touched\n", idx);
+ }
+ break;
+
+ case JITTER:
+ if (c_state == mask) {
+ touchpad_cal_sensor_val(ad714x, idx);
+ touchpad_cal_highest_stage(ad714x, idx);
+ if ((!touchpad_check_second_peak(ad714x, idx)) &&
+ (!touchpad_check_endpoint(ad714x, idx))) {
+ dev_dbg(ad714x->dev,
+ "touchpad%d, 2 fingers or endpoint\n",
+ idx);
+ touchpad_cal_abs_pos(ad714x, idx);
+ sw->x_flt_pos = sw->x_abs_pos;
+ sw->y_flt_pos = sw->y_abs_pos;
+ sw->state = ACTIVE;
+ }
+ }
+ break;
+
+ case ACTIVE:
+ if (c_state == mask) {
+ if (h_state) {
+ touchpad_cal_sensor_val(ad714x, idx);
+ touchpad_cal_highest_stage(ad714x, idx);
+ if ((!touchpad_check_second_peak(ad714x, idx))
+ && (!touchpad_check_endpoint(ad714x, idx))) {
+ touchpad_cal_abs_pos(ad714x, idx);
+ touchpad_cal_flt_pos(ad714x, idx);
+ input_report_abs(sw->input, ABS_X,
+ sw->x_flt_pos);
+ input_report_abs(sw->input, ABS_Y,
+ sw->y_flt_pos);
+ input_report_key(sw->input, BTN_TOUCH,
+ 1);
+ }
+ } else {
+ /* When the user lifts off the sensor, configure
+ * the AD714X back to threshold interrupt mode.
+ */
+ touchpad_use_thr_int(ad714x, idx);
+ sw->state = IDLE;
+ input_report_key(sw->input, BTN_TOUCH, 0);
+ dev_dbg(ad714x->dev, "touchpad %d released\n",
+ idx);
+ }
+ input_sync(sw->input);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+static int ad714x_hw_detect(struct ad714x_chip *ad714x)
+{
+ unsigned short data;
+
+ ad714x->read(ad714x, AD714X_PARTID_REG, &data, 1);
+ switch (data & 0xFFF0) {
+ case AD7142_PARTID:
+ ad714x->product = 0x7142;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7142 captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ case AD7143_PARTID:
+ ad714x->product = 0x7143;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7143 captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ case AD7147_PARTID:
+ ad714x->product = 0x7147;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7147(A) captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ case AD7148_PARTID:
+ ad714x->product = 0x7148;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7148 captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ default:
+ dev_err(ad714x->dev,
+ "fail to detect AD714X captouch, read ID is %04x\n",
+ data);
+ return -ENODEV;
+ }
+}
+
+static void ad714x_hw_init(struct ad714x_chip *ad714x)
+{
+ int i, j;
+ unsigned short reg_base;
+ unsigned short data;
+
+ /* configuration CDC and interrupts */
+
+ for (i = 0; i < STAGE_NUM; i++) {
+ reg_base = AD714X_STAGECFG_REG + i * STAGE_CFGREG_NUM;
+ for (j = 0; j < STAGE_CFGREG_NUM; j++)
+ ad714x->write(ad714x, reg_base + j,
+ ad714x->hw->stage_cfg_reg[i][j]);
+ }
+
+ for (i = 0; i < SYS_CFGREG_NUM; i++)
+ ad714x->write(ad714x, AD714X_SYSCFG_REG + i,
+ ad714x->hw->sys_cfg_reg[i]);
+ for (i = 0; i < SYS_CFGREG_NUM; i++)
+ ad714x->read(ad714x, AD714X_SYSCFG_REG + i, &data, 1);
+
+ ad714x->write(ad714x, AD714X_STG_CAL_EN_REG, 0xFFF);
+
+ /* clear all interrupts */
+ ad714x->read(ad714x, STG_LOW_INT_STA_REG, &ad714x->l_state, 3);
+}
+
+static irqreturn_t ad714x_interrupt_thread(int irq, void *data)
+{
+ struct ad714x_chip *ad714x = data;
+ int i;
+
+ mutex_lock(&ad714x->mutex);
+
+ ad714x->read(ad714x, STG_LOW_INT_STA_REG, &ad714x->l_state, 3);
+
+ for (i = 0; i < ad714x->hw->button_num; i++)
+ ad714x_button_state_machine(ad714x, i);
+ for (i = 0; i < ad714x->hw->slider_num; i++)
+ ad714x_slider_state_machine(ad714x, i);
+ for (i = 0; i < ad714x->hw->wheel_num; i++)
+ ad714x_wheel_state_machine(ad714x, i);
+ for (i = 0; i < ad714x->hw->touchpad_num; i++)
+ ad714x_touchpad_state_machine(ad714x, i);
+
+ mutex_unlock(&ad714x->mutex);
+
+ return IRQ_HANDLED;
+}
+
+#define MAX_DEVICE_NUM 8
+struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
+ ad714x_read_t read, ad714x_write_t write)
+{
+ int i, alloc_idx;
+ int error;
+ struct input_dev *input[MAX_DEVICE_NUM];
+
+ struct ad714x_platform_data *plat_data = dev_get_platdata(dev);
+ struct ad714x_chip *ad714x;
+ void *drv_mem;
+ unsigned long irqflags;
+
+ struct ad714x_button_drv *bt_drv;
+ struct ad714x_slider_drv *sd_drv;
+ struct ad714x_wheel_drv *wl_drv;
+ struct ad714x_touchpad_drv *tp_drv;
+
+
+ if (irq <= 0) {
+ dev_err(dev, "IRQ not configured!\n");
+ error = -EINVAL;
+ goto err_out;
+ }
+
+ if (dev_get_platdata(dev) == NULL) {
+ dev_err(dev, "platform data for ad714x doesn't exist\n");
+ error = -EINVAL;
+ goto err_out;
+ }
+
+ ad714x = kzalloc(sizeof(*ad714x) + sizeof(*ad714x->sw) +
+ sizeof(*sd_drv) * plat_data->slider_num +
+ sizeof(*wl_drv) * plat_data->wheel_num +
+ sizeof(*tp_drv) * plat_data->touchpad_num +
+ sizeof(*bt_drv) * plat_data->button_num, GFP_KERNEL);
+ if (!ad714x) {
+ error = -ENOMEM;
+ goto err_out;
+ }
+
+ ad714x->hw = plat_data;
+
+ drv_mem = ad714x + 1;
+ ad714x->sw = drv_mem;
+ drv_mem += sizeof(*ad714x->sw);
+ ad714x->sw->slider = sd_drv = drv_mem;
+ drv_mem += sizeof(*sd_drv) * ad714x->hw->slider_num;
+ ad714x->sw->wheel = wl_drv = drv_mem;
+ drv_mem += sizeof(*wl_drv) * ad714x->hw->wheel_num;
+ ad714x->sw->touchpad = tp_drv = drv_mem;
+ drv_mem += sizeof(*tp_drv) * ad714x->hw->touchpad_num;
+ ad714x->sw->button = bt_drv = drv_mem;
+ drv_mem += sizeof(*bt_drv) * ad714x->hw->button_num;
+
+ ad714x->read = read;
+ ad714x->write = write;
+ ad714x->irq = irq;
+ ad714x->dev = dev;
+
+ error = ad714x_hw_detect(ad714x);
+ if (error)
+ goto err_free_mem;
+
+ /* initialize and request sw/hw resources */
+
+ ad714x_hw_init(ad714x);
+ mutex_init(&ad714x->mutex);
+
+ /*
+ * Allocate and register AD714X input device
+ */
+ alloc_idx = 0;
+
+ /* a slider uses one input_dev instance */
+ if (ad714x->hw->slider_num > 0) {
+ struct ad714x_slider_plat *sd_plat = ad714x->hw->slider;
+
+ for (i = 0; i < ad714x->hw->slider_num; i++) {
+ sd_drv[i].input = input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_ABS, input[alloc_idx]->evbit);
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ __set_bit(ABS_X, input[alloc_idx]->absbit);
+ __set_bit(BTN_TOUCH, input[alloc_idx]->keybit);
+ input_set_abs_params(input[alloc_idx],
+ ABS_X, 0, sd_plat->max_coord, 0, 0);
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_slider";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+ }
+
+ /* a wheel uses one input_dev instance */
+ if (ad714x->hw->wheel_num > 0) {
+ struct ad714x_wheel_plat *wl_plat = ad714x->hw->wheel;
+
+ for (i = 0; i < ad714x->hw->wheel_num; i++) {
+ wl_drv[i].input = input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ __set_bit(EV_ABS, input[alloc_idx]->evbit);
+ __set_bit(ABS_WHEEL, input[alloc_idx]->absbit);
+ __set_bit(BTN_TOUCH, input[alloc_idx]->keybit);
+ input_set_abs_params(input[alloc_idx],
+ ABS_WHEEL, 0, wl_plat->max_coord, 0, 0);
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_wheel";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+ }
+
+ /* a touchpad uses one input_dev instance */
+ if (ad714x->hw->touchpad_num > 0) {
+ struct ad714x_touchpad_plat *tp_plat = ad714x->hw->touchpad;
+
+ for (i = 0; i < ad714x->hw->touchpad_num; i++) {
+ tp_drv[i].input = input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_ABS, input[alloc_idx]->evbit);
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ __set_bit(ABS_X, input[alloc_idx]->absbit);
+ __set_bit(ABS_Y, input[alloc_idx]->absbit);
+ __set_bit(BTN_TOUCH, input[alloc_idx]->keybit);
+ input_set_abs_params(input[alloc_idx],
+ ABS_X, 0, tp_plat->x_max_coord, 0, 0);
+ input_set_abs_params(input[alloc_idx],
+ ABS_Y, 0, tp_plat->y_max_coord, 0, 0);
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_pad";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+ }
+
+ /* all buttons use one input node */
+ if (ad714x->hw->button_num > 0) {
+ struct ad714x_button_plat *bt_plat = ad714x->hw->button;
+
+ input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ for (i = 0; i < ad714x->hw->button_num; i++) {
+ bt_drv[i].input = input[alloc_idx];
+ __set_bit(bt_plat[i].keycode, input[alloc_idx]->keybit);
+ }
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_button";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+
+ irqflags = plat_data->irqflags ?: IRQF_TRIGGER_FALLING;
+ irqflags |= IRQF_ONESHOT;
+
+ error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread,
+ irqflags, "ad714x_captouch", ad714x);
+ if (error) {
+ dev_err(dev, "can't allocate irq %d\n", ad714x->irq);
+ goto err_unreg_dev;
+ }
+
+ return ad714x;
+
+ err_free_dev:
+ dev_err(dev, "failed to setup AD714x input device %i\n", alloc_idx);
+ input_free_device(input[alloc_idx]);
+ err_unreg_dev:
+ while (--alloc_idx >= 0)
+ input_unregister_device(input[alloc_idx]);
+ err_free_mem:
+ kfree(ad714x);
+ err_out:
+ return ERR_PTR(error);
+}
+EXPORT_SYMBOL(ad714x_probe);
+
+void ad714x_remove(struct ad714x_chip *ad714x)
+{
+ struct ad714x_platform_data *hw = ad714x->hw;
+ struct ad714x_driver_data *sw = ad714x->sw;
+ int i;
+
+ free_irq(ad714x->irq, ad714x);
+
+ /* unregister and free all input devices */
+
+ for (i = 0; i < hw->slider_num; i++)
+ input_unregister_device(sw->slider[i].input);
+
+ for (i = 0; i < hw->wheel_num; i++)
+ input_unregister_device(sw->wheel[i].input);
+
+ for (i = 0; i < hw->touchpad_num; i++)
+ input_unregister_device(sw->touchpad[i].input);
+
+ if (hw->button_num)
+ input_unregister_device(sw->button[0].input);
+
+ kfree(ad714x);
+}
+EXPORT_SYMBOL(ad714x_remove);
+
+#ifdef CONFIG_PM
+int ad714x_disable(struct ad714x_chip *ad714x)
+{
+ unsigned short data;
+
+ dev_dbg(ad714x->dev, "%s enter\n", __func__);
+
+ mutex_lock(&ad714x->mutex);
+
+ data = ad714x->hw->sys_cfg_reg[AD714X_PWR_CTRL] | 0x3;
+ ad714x->write(ad714x, AD714X_PWR_CTRL, data);
+
+ mutex_unlock(&ad714x->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(ad714x_disable);
+
+int ad714x_enable(struct ad714x_chip *ad714x)
+{
+ dev_dbg(ad714x->dev, "%s enter\n", __func__);
+
+ mutex_lock(&ad714x->mutex);
+
+ /* resume to non-shutdown mode */
+
+ ad714x->write(ad714x, AD714X_PWR_CTRL,
+ ad714x->hw->sys_cfg_reg[AD714X_PWR_CTRL]);
+
+ /* make sure the interrupt output line is not low level after resume,
+ * otherwise we will get no chance to enter falling-edge irq again
+ */
+
+ ad714x->read(ad714x, STG_LOW_INT_STA_REG, &ad714x->l_state, 3);
+
+ mutex_unlock(&ad714x->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(ad714x_enable);
+#endif
+
+MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor Driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/ad714x.h b/kernel/drivers/input/misc/ad714x.h
new file mode 100644
index 000000000..3c85455aa
--- /dev/null
+++ b/kernel/drivers/input/misc/ad714x.h
@@ -0,0 +1,55 @@
+/*
+ * AD714X CapTouch Programmable Controller driver (bus interfaces)
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _AD714X_H_
+#define _AD714X_H_
+
+#include <linux/types.h>
+
+#define STAGE_NUM 12
+
+struct device;
+struct ad714x_platform_data;
+struct ad714x_driver_data;
+struct ad714x_chip;
+
+typedef int (*ad714x_read_t)(struct ad714x_chip *, unsigned short, unsigned short *, size_t);
+typedef int (*ad714x_write_t)(struct ad714x_chip *, unsigned short, unsigned short);
+
+struct ad714x_chip {
+ unsigned short l_state;
+ unsigned short h_state;
+ unsigned short c_state;
+ unsigned short adc_reg[STAGE_NUM];
+ unsigned short amb_reg[STAGE_NUM];
+ unsigned short sensor_val[STAGE_NUM];
+
+ struct ad714x_platform_data *hw;
+ struct ad714x_driver_data *sw;
+
+ int irq;
+ struct device *dev;
+ ad714x_read_t read;
+ ad714x_write_t write;
+
+ struct mutex mutex;
+
+ unsigned product;
+ unsigned version;
+
+ __be16 xfer_buf[16] ____cacheline_aligned;
+
+};
+
+int ad714x_disable(struct ad714x_chip *ad714x);
+int ad714x_enable(struct ad714x_chip *ad714x);
+struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
+ ad714x_read_t read, ad714x_write_t write);
+void ad714x_remove(struct ad714x_chip *ad714x);
+
+#endif
diff --git a/kernel/drivers/input/misc/adxl34x-i2c.c b/kernel/drivers/input/misc/adxl34x-i2c.c
new file mode 100644
index 000000000..470bfd6f0
--- /dev/null
+++ b/kernel/drivers/input/misc/adxl34x-i2c.c
@@ -0,0 +1,153 @@
+/*
+ * ADLX345/346 Three-Axis Digital Accelerometers (I2C Interface)
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_I2C */
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pm.h>
+#include "adxl34x.h"
+
+static int adxl34x_smbus_read(struct device *dev, unsigned char reg)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int adxl34x_smbus_write(struct device *dev,
+ unsigned char reg, unsigned char val)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return i2c_smbus_write_byte_data(client, reg, val);
+}
+
+static int adxl34x_smbus_read_block(struct device *dev,
+ unsigned char reg, int count,
+ void *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return i2c_smbus_read_i2c_block_data(client, reg, count, buf);
+}
+
+static int adxl34x_i2c_read_block(struct device *dev,
+ unsigned char reg, int count,
+ void *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret;
+
+ ret = i2c_master_send(client, &reg, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_master_recv(client, buf, count);
+ if (ret < 0)
+ return ret;
+
+ if (ret != count)
+ return -EIO;
+
+ return 0;
+}
+
+static const struct adxl34x_bus_ops adxl34x_smbus_bops = {
+ .bustype = BUS_I2C,
+ .write = adxl34x_smbus_write,
+ .read = adxl34x_smbus_read,
+ .read_block = adxl34x_smbus_read_block,
+};
+
+static const struct adxl34x_bus_ops adxl34x_i2c_bops = {
+ .bustype = BUS_I2C,
+ .write = adxl34x_smbus_write,
+ .read = adxl34x_smbus_read,
+ .read_block = adxl34x_i2c_read_block,
+};
+
+static int adxl34x_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adxl34x *ac;
+ int error;
+
+ error = i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA);
+ if (!error) {
+ dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
+ return -EIO;
+ }
+
+ ac = adxl34x_probe(&client->dev, client->irq, false,
+ i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_READ_I2C_BLOCK) ?
+ &adxl34x_smbus_bops : &adxl34x_i2c_bops);
+ if (IS_ERR(ac))
+ return PTR_ERR(ac);
+
+ i2c_set_clientdata(client, ac);
+
+ return 0;
+}
+
+static int adxl34x_i2c_remove(struct i2c_client *client)
+{
+ struct adxl34x *ac = i2c_get_clientdata(client);
+
+ return adxl34x_remove(ac);
+}
+
+static int __maybe_unused adxl34x_i2c_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adxl34x *ac = i2c_get_clientdata(client);
+
+ adxl34x_suspend(ac);
+
+ return 0;
+}
+
+static int __maybe_unused adxl34x_i2c_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adxl34x *ac = i2c_get_clientdata(client);
+
+ adxl34x_resume(ac);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(adxl34x_i2c_pm, adxl34x_i2c_suspend,
+ adxl34x_i2c_resume);
+
+static const struct i2c_device_id adxl34x_id[] = {
+ { "adxl34x", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, adxl34x_id);
+
+static struct i2c_driver adxl34x_driver = {
+ .driver = {
+ .name = "adxl34x",
+ .owner = THIS_MODULE,
+ .pm = &adxl34x_i2c_pm,
+ },
+ .probe = adxl34x_i2c_probe,
+ .remove = adxl34x_i2c_remove,
+ .id_table = adxl34x_id,
+};
+
+module_i2c_driver(adxl34x_driver);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer I2C Bus Driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/adxl34x-spi.c b/kernel/drivers/input/misc/adxl34x-spi.c
new file mode 100644
index 000000000..da6e76b58
--- /dev/null
+++ b/kernel/drivers/input/misc/adxl34x-spi.c
@@ -0,0 +1,134 @@
+/*
+ * ADLX345/346 Three-Axis Digital Accelerometers (SPI Interface)
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_SPI */
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/pm.h>
+#include <linux/types.h>
+#include "adxl34x.h"
+
+#define MAX_SPI_FREQ_HZ 5000000
+#define MAX_FREQ_NO_FIFODELAY 1500000
+#define ADXL34X_CMD_MULTB (1 << 6)
+#define ADXL34X_CMD_READ (1 << 7)
+#define ADXL34X_WRITECMD(reg) (reg & 0x3F)
+#define ADXL34X_READCMD(reg) (ADXL34X_CMD_READ | (reg & 0x3F))
+#define ADXL34X_READMB_CMD(reg) (ADXL34X_CMD_READ | ADXL34X_CMD_MULTB \
+ | (reg & 0x3F))
+
+static int adxl34x_spi_read(struct device *dev, unsigned char reg)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ unsigned char cmd;
+
+ cmd = ADXL34X_READCMD(reg);
+
+ return spi_w8r8(spi, cmd);
+}
+
+static int adxl34x_spi_write(struct device *dev,
+ unsigned char reg, unsigned char val)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ unsigned char buf[2];
+
+ buf[0] = ADXL34X_WRITECMD(reg);
+ buf[1] = val;
+
+ return spi_write(spi, buf, sizeof(buf));
+}
+
+static int adxl34x_spi_read_block(struct device *dev,
+ unsigned char reg, int count,
+ void *buf)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ ssize_t status;
+
+ reg = ADXL34X_READMB_CMD(reg);
+ status = spi_write_then_read(spi, &reg, 1, buf, count);
+
+ return (status < 0) ? status : 0;
+}
+
+static const struct adxl34x_bus_ops adxl34x_spi_bops = {
+ .bustype = BUS_SPI,
+ .write = adxl34x_spi_write,
+ .read = adxl34x_spi_read,
+ .read_block = adxl34x_spi_read_block,
+};
+
+static int adxl34x_spi_probe(struct spi_device *spi)
+{
+ struct adxl34x *ac;
+
+ /* don't exceed max specified SPI CLK frequency */
+ if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+ dev_err(&spi->dev, "SPI CLK %d Hz too fast\n", spi->max_speed_hz);
+ return -EINVAL;
+ }
+
+ ac = adxl34x_probe(&spi->dev, spi->irq,
+ spi->max_speed_hz > MAX_FREQ_NO_FIFODELAY,
+ &adxl34x_spi_bops);
+
+ if (IS_ERR(ac))
+ return PTR_ERR(ac);
+
+ spi_set_drvdata(spi, ac);
+
+ return 0;
+}
+
+static int adxl34x_spi_remove(struct spi_device *spi)
+{
+ struct adxl34x *ac = spi_get_drvdata(spi);
+
+ return adxl34x_remove(ac);
+}
+
+static int __maybe_unused adxl34x_spi_suspend(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct adxl34x *ac = spi_get_drvdata(spi);
+
+ adxl34x_suspend(ac);
+
+ return 0;
+}
+
+static int __maybe_unused adxl34x_spi_resume(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct adxl34x *ac = spi_get_drvdata(spi);
+
+ adxl34x_resume(ac);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(adxl34x_spi_pm, adxl34x_spi_suspend,
+ adxl34x_spi_resume);
+
+static struct spi_driver adxl34x_driver = {
+ .driver = {
+ .name = "adxl34x",
+ .owner = THIS_MODULE,
+ .pm = &adxl34x_spi_pm,
+ },
+ .probe = adxl34x_spi_probe,
+ .remove = adxl34x_spi_remove,
+};
+
+module_spi_driver(adxl34x_driver);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer SPI Bus Driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/adxl34x.c b/kernel/drivers/input/misc/adxl34x.c
new file mode 100644
index 000000000..2b2d02f40
--- /dev/null
+++ b/kernel/drivers/input/misc/adxl34x.c
@@ -0,0 +1,913 @@
+/*
+ * ADXL345/346 Three-Axis Digital Accelerometers
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/input/adxl34x.h>
+#include <linux/module.h>
+
+#include "adxl34x.h"
+
+/* ADXL345/6 Register Map */
+#define DEVID 0x00 /* R Device ID */
+#define THRESH_TAP 0x1D /* R/W Tap threshold */
+#define OFSX 0x1E /* R/W X-axis offset */
+#define OFSY 0x1F /* R/W Y-axis offset */
+#define OFSZ 0x20 /* R/W Z-axis offset */
+#define DUR 0x21 /* R/W Tap duration */
+#define LATENT 0x22 /* R/W Tap latency */
+#define WINDOW 0x23 /* R/W Tap window */
+#define THRESH_ACT 0x24 /* R/W Activity threshold */
+#define THRESH_INACT 0x25 /* R/W Inactivity threshold */
+#define TIME_INACT 0x26 /* R/W Inactivity time */
+#define ACT_INACT_CTL 0x27 /* R/W Axis enable control for activity and */
+ /* inactivity detection */
+#define THRESH_FF 0x28 /* R/W Free-fall threshold */
+#define TIME_FF 0x29 /* R/W Free-fall time */
+#define TAP_AXES 0x2A /* R/W Axis control for tap/double tap */
+#define ACT_TAP_STATUS 0x2B /* R Source of tap/double tap */
+#define BW_RATE 0x2C /* R/W Data rate and power mode control */
+#define POWER_CTL 0x2D /* R/W Power saving features control */
+#define INT_ENABLE 0x2E /* R/W Interrupt enable control */
+#define INT_MAP 0x2F /* R/W Interrupt mapping control */
+#define INT_SOURCE 0x30 /* R Source of interrupts */
+#define DATA_FORMAT 0x31 /* R/W Data format control */
+#define DATAX0 0x32 /* R X-Axis Data 0 */
+#define DATAX1 0x33 /* R X-Axis Data 1 */
+#define DATAY0 0x34 /* R Y-Axis Data 0 */
+#define DATAY1 0x35 /* R Y-Axis Data 1 */
+#define DATAZ0 0x36 /* R Z-Axis Data 0 */
+#define DATAZ1 0x37 /* R Z-Axis Data 1 */
+#define FIFO_CTL 0x38 /* R/W FIFO control */
+#define FIFO_STATUS 0x39 /* R FIFO status */
+#define TAP_SIGN 0x3A /* R Sign and source for tap/double tap */
+/* Orientation ADXL346 only */
+#define ORIENT_CONF 0x3B /* R/W Orientation configuration */
+#define ORIENT 0x3C /* R Orientation status */
+
+/* DEVIDs */
+#define ID_ADXL345 0xE5
+#define ID_ADXL346 0xE6
+
+/* INT_ENABLE/INT_MAP/INT_SOURCE Bits */
+#define DATA_READY (1 << 7)
+#define SINGLE_TAP (1 << 6)
+#define DOUBLE_TAP (1 << 5)
+#define ACTIVITY (1 << 4)
+#define INACTIVITY (1 << 3)
+#define FREE_FALL (1 << 2)
+#define WATERMARK (1 << 1)
+#define OVERRUN (1 << 0)
+
+/* ACT_INACT_CONTROL Bits */
+#define ACT_ACDC (1 << 7)
+#define ACT_X_EN (1 << 6)
+#define ACT_Y_EN (1 << 5)
+#define ACT_Z_EN (1 << 4)
+#define INACT_ACDC (1 << 3)
+#define INACT_X_EN (1 << 2)
+#define INACT_Y_EN (1 << 1)
+#define INACT_Z_EN (1 << 0)
+
+/* TAP_AXES Bits */
+#define SUPPRESS (1 << 3)
+#define TAP_X_EN (1 << 2)
+#define TAP_Y_EN (1 << 1)
+#define TAP_Z_EN (1 << 0)
+
+/* ACT_TAP_STATUS Bits */
+#define ACT_X_SRC (1 << 6)
+#define ACT_Y_SRC (1 << 5)
+#define ACT_Z_SRC (1 << 4)
+#define ASLEEP (1 << 3)
+#define TAP_X_SRC (1 << 2)
+#define TAP_Y_SRC (1 << 1)
+#define TAP_Z_SRC (1 << 0)
+
+/* BW_RATE Bits */
+#define LOW_POWER (1 << 4)
+#define RATE(x) ((x) & 0xF)
+
+/* POWER_CTL Bits */
+#define PCTL_LINK (1 << 5)
+#define PCTL_AUTO_SLEEP (1 << 4)
+#define PCTL_MEASURE (1 << 3)
+#define PCTL_SLEEP (1 << 2)
+#define PCTL_WAKEUP(x) ((x) & 0x3)
+
+/* DATA_FORMAT Bits */
+#define SELF_TEST (1 << 7)
+#define SPI (1 << 6)
+#define INT_INVERT (1 << 5)
+#define FULL_RES (1 << 3)
+#define JUSTIFY (1 << 2)
+#define RANGE(x) ((x) & 0x3)
+#define RANGE_PM_2g 0
+#define RANGE_PM_4g 1
+#define RANGE_PM_8g 2
+#define RANGE_PM_16g 3
+
+/*
+ * Maximum value our axis may get in full res mode for the input device
+ * (signed 13 bits)
+ */
+#define ADXL_FULLRES_MAX_VAL 4096
+
+/*
+ * Maximum value our axis may get in fixed res mode for the input device
+ * (signed 10 bits)
+ */
+#define ADXL_FIXEDRES_MAX_VAL 512
+
+/* FIFO_CTL Bits */
+#define FIFO_MODE(x) (((x) & 0x3) << 6)
+#define FIFO_BYPASS 0
+#define FIFO_FIFO 1
+#define FIFO_STREAM 2
+#define FIFO_TRIGGER 3
+#define TRIGGER (1 << 5)
+#define SAMPLES(x) ((x) & 0x1F)
+
+/* FIFO_STATUS Bits */
+#define FIFO_TRIG (1 << 7)
+#define ENTRIES(x) ((x) & 0x3F)
+
+/* TAP_SIGN Bits ADXL346 only */
+#define XSIGN (1 << 6)
+#define YSIGN (1 << 5)
+#define ZSIGN (1 << 4)
+#define XTAP (1 << 3)
+#define YTAP (1 << 2)
+#define ZTAP (1 << 1)
+
+/* ORIENT_CONF ADXL346 only */
+#define ORIENT_DEADZONE(x) (((x) & 0x7) << 4)
+#define ORIENT_DIVISOR(x) ((x) & 0x7)
+
+/* ORIENT ADXL346 only */
+#define ADXL346_2D_VALID (1 << 6)
+#define ADXL346_2D_ORIENT(x) (((x) & 0x30) >> 4)
+#define ADXL346_3D_VALID (1 << 3)
+#define ADXL346_3D_ORIENT(x) ((x) & 0x7)
+#define ADXL346_2D_PORTRAIT_POS 0 /* +X */
+#define ADXL346_2D_PORTRAIT_NEG 1 /* -X */
+#define ADXL346_2D_LANDSCAPE_POS 2 /* +Y */
+#define ADXL346_2D_LANDSCAPE_NEG 3 /* -Y */
+
+#define ADXL346_3D_FRONT 3 /* +X */
+#define ADXL346_3D_BACK 4 /* -X */
+#define ADXL346_3D_RIGHT 2 /* +Y */
+#define ADXL346_3D_LEFT 5 /* -Y */
+#define ADXL346_3D_TOP 1 /* +Z */
+#define ADXL346_3D_BOTTOM 6 /* -Z */
+
+#undef ADXL_DEBUG
+
+#define ADXL_X_AXIS 0
+#define ADXL_Y_AXIS 1
+#define ADXL_Z_AXIS 2
+
+#define AC_READ(ac, reg) ((ac)->bops->read((ac)->dev, reg))
+#define AC_WRITE(ac, reg, val) ((ac)->bops->write((ac)->dev, reg, val))
+
+struct axis_triple {
+ int x;
+ int y;
+ int z;
+};
+
+struct adxl34x {
+ struct device *dev;
+ struct input_dev *input;
+ struct mutex mutex; /* reentrant protection for struct */
+ struct adxl34x_platform_data pdata;
+ struct axis_triple swcal;
+ struct axis_triple hwcal;
+ struct axis_triple saved;
+ char phys[32];
+ unsigned orient2d_saved;
+ unsigned orient3d_saved;
+ bool disabled; /* P: mutex */
+ bool opened; /* P: mutex */
+ bool suspended; /* P: mutex */
+ bool fifo_delay;
+ int irq;
+ unsigned model;
+ unsigned int_mask;
+
+ const struct adxl34x_bus_ops *bops;
+};
+
+static const struct adxl34x_platform_data adxl34x_default_init = {
+ .tap_threshold = 35,
+ .tap_duration = 3,
+ .tap_latency = 20,
+ .tap_window = 20,
+ .tap_axis_control = ADXL_TAP_X_EN | ADXL_TAP_Y_EN | ADXL_TAP_Z_EN,
+ .act_axis_control = 0xFF,
+ .activity_threshold = 6,
+ .inactivity_threshold = 4,
+ .inactivity_time = 3,
+ .free_fall_threshold = 8,
+ .free_fall_time = 0x20,
+ .data_rate = 8,
+ .data_range = ADXL_FULL_RES,
+
+ .ev_type = EV_ABS,
+ .ev_code_x = ABS_X, /* EV_REL */
+ .ev_code_y = ABS_Y, /* EV_REL */
+ .ev_code_z = ABS_Z, /* EV_REL */
+
+ .ev_code_tap = {BTN_TOUCH, BTN_TOUCH, BTN_TOUCH}, /* EV_KEY {x,y,z} */
+ .power_mode = ADXL_AUTO_SLEEP | ADXL_LINK,
+ .fifo_mode = ADXL_FIFO_STREAM,
+ .watermark = 0,
+};
+
+static void adxl34x_get_triple(struct adxl34x *ac, struct axis_triple *axis)
+{
+ short buf[3];
+
+ ac->bops->read_block(ac->dev, DATAX0, DATAZ1 - DATAX0 + 1, buf);
+
+ mutex_lock(&ac->mutex);
+ ac->saved.x = (s16) le16_to_cpu(buf[0]);
+ axis->x = ac->saved.x;
+
+ ac->saved.y = (s16) le16_to_cpu(buf[1]);
+ axis->y = ac->saved.y;
+
+ ac->saved.z = (s16) le16_to_cpu(buf[2]);
+ axis->z = ac->saved.z;
+ mutex_unlock(&ac->mutex);
+}
+
+static void adxl34x_service_ev_fifo(struct adxl34x *ac)
+{
+ struct adxl34x_platform_data *pdata = &ac->pdata;
+ struct axis_triple axis;
+
+ adxl34x_get_triple(ac, &axis);
+
+ input_event(ac->input, pdata->ev_type, pdata->ev_code_x,
+ axis.x - ac->swcal.x);
+ input_event(ac->input, pdata->ev_type, pdata->ev_code_y,
+ axis.y - ac->swcal.y);
+ input_event(ac->input, pdata->ev_type, pdata->ev_code_z,
+ axis.z - ac->swcal.z);
+}
+
+static void adxl34x_report_key_single(struct input_dev *input, int key)
+{
+ input_report_key(input, key, true);
+ input_sync(input);
+ input_report_key(input, key, false);
+}
+
+static void adxl34x_send_key_events(struct adxl34x *ac,
+ struct adxl34x_platform_data *pdata, int status, int press)
+{
+ int i;
+
+ for (i = ADXL_X_AXIS; i <= ADXL_Z_AXIS; i++) {
+ if (status & (1 << (ADXL_Z_AXIS - i)))
+ input_report_key(ac->input,
+ pdata->ev_code_tap[i], press);
+ }
+}
+
+static void adxl34x_do_tap(struct adxl34x *ac,
+ struct adxl34x_platform_data *pdata, int status)
+{
+ adxl34x_send_key_events(ac, pdata, status, true);
+ input_sync(ac->input);
+ adxl34x_send_key_events(ac, pdata, status, false);
+}
+
+static irqreturn_t adxl34x_irq(int irq, void *handle)
+{
+ struct adxl34x *ac = handle;
+ struct adxl34x_platform_data *pdata = &ac->pdata;
+ int int_stat, tap_stat, samples, orient, orient_code;
+
+ /*
+ * ACT_TAP_STATUS should be read before clearing the interrupt
+ * Avoid reading ACT_TAP_STATUS in case TAP detection is disabled
+ */
+
+ if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN))
+ tap_stat = AC_READ(ac, ACT_TAP_STATUS);
+ else
+ tap_stat = 0;
+
+ int_stat = AC_READ(ac, INT_SOURCE);
+
+ if (int_stat & FREE_FALL)
+ adxl34x_report_key_single(ac->input, pdata->ev_code_ff);
+
+ if (int_stat & OVERRUN)
+ dev_dbg(ac->dev, "OVERRUN\n");
+
+ if (int_stat & (SINGLE_TAP | DOUBLE_TAP)) {
+ adxl34x_do_tap(ac, pdata, tap_stat);
+
+ if (int_stat & DOUBLE_TAP)
+ adxl34x_do_tap(ac, pdata, tap_stat);
+ }
+
+ if (pdata->ev_code_act_inactivity) {
+ if (int_stat & ACTIVITY)
+ input_report_key(ac->input,
+ pdata->ev_code_act_inactivity, 1);
+ if (int_stat & INACTIVITY)
+ input_report_key(ac->input,
+ pdata->ev_code_act_inactivity, 0);
+ }
+
+ /*
+ * ORIENTATION SENSING ADXL346 only
+ */
+ if (pdata->orientation_enable) {
+ orient = AC_READ(ac, ORIENT);
+ if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_2D) &&
+ (orient & ADXL346_2D_VALID)) {
+
+ orient_code = ADXL346_2D_ORIENT(orient);
+ /* Report orientation only when it changes */
+ if (ac->orient2d_saved != orient_code) {
+ ac->orient2d_saved = orient_code;
+ adxl34x_report_key_single(ac->input,
+ pdata->ev_codes_orient_2d[orient_code]);
+ }
+ }
+
+ if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_3D) &&
+ (orient & ADXL346_3D_VALID)) {
+
+ orient_code = ADXL346_3D_ORIENT(orient) - 1;
+ /* Report orientation only when it changes */
+ if (ac->orient3d_saved != orient_code) {
+ ac->orient3d_saved = orient_code;
+ adxl34x_report_key_single(ac->input,
+ pdata->ev_codes_orient_3d[orient_code]);
+ }
+ }
+ }
+
+ if (int_stat & (DATA_READY | WATERMARK)) {
+
+ if (pdata->fifo_mode)
+ samples = ENTRIES(AC_READ(ac, FIFO_STATUS)) + 1;
+ else
+ samples = 1;
+
+ for (; samples > 0; samples--) {
+ adxl34x_service_ev_fifo(ac);
+ /*
+ * To ensure that the FIFO has
+ * completely popped, there must be at least 5 us between
+ * the end of reading the data registers, signified by the
+ * transition to register 0x38 from 0x37 or the CS pin
+ * going high, and the start of new reads of the FIFO or
+ * reading the FIFO_STATUS register. For SPI operation at
+ * 1.5 MHz or lower, the register addressing portion of the
+ * transmission is sufficient delay to ensure the FIFO has
+ * completely popped. It is necessary for SPI operation
+ * greater than 1.5 MHz to de-assert the CS pin to ensure a
+ * total of 5 us, which is at most 3.4 us at 5 MHz
+ * operation.
+ */
+ if (ac->fifo_delay && (samples > 1))
+ udelay(3);
+ }
+ }
+
+ input_sync(ac->input);
+
+ return IRQ_HANDLED;
+}
+
+static void __adxl34x_disable(struct adxl34x *ac)
+{
+ /*
+ * A '0' places the ADXL34x into standby mode
+ * with minimum power consumption.
+ */
+ AC_WRITE(ac, POWER_CTL, 0);
+}
+
+static void __adxl34x_enable(struct adxl34x *ac)
+{
+ AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);
+}
+
+void adxl34x_suspend(struct adxl34x *ac)
+{
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && !ac->disabled && ac->opened)
+ __adxl34x_disable(ac);
+
+ ac->suspended = true;
+
+ mutex_unlock(&ac->mutex);
+}
+EXPORT_SYMBOL_GPL(adxl34x_suspend);
+
+void adxl34x_resume(struct adxl34x *ac)
+{
+ mutex_lock(&ac->mutex);
+
+ if (ac->suspended && !ac->disabled && ac->opened)
+ __adxl34x_enable(ac);
+
+ ac->suspended = false;
+
+ mutex_unlock(&ac->mutex);
+}
+EXPORT_SYMBOL_GPL(adxl34x_resume);
+
+static ssize_t adxl34x_disable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ac->disabled);
+}
+
+static ssize_t adxl34x_disable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned int val;
+ int error;
+
+ error = kstrtouint(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && ac->opened) {
+ if (val) {
+ if (!ac->disabled)
+ __adxl34x_disable(ac);
+ } else {
+ if (ac->disabled)
+ __adxl34x_enable(ac);
+ }
+ }
+
+ ac->disabled = !!val;
+
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(disable, 0664, adxl34x_disable_show, adxl34x_disable_store);
+
+static ssize_t adxl34x_calibrate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ ssize_t count;
+
+ mutex_lock(&ac->mutex);
+ count = sprintf(buf, "%d,%d,%d\n",
+ ac->hwcal.x * 4 + ac->swcal.x,
+ ac->hwcal.y * 4 + ac->swcal.y,
+ ac->hwcal.z * 4 + ac->swcal.z);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static ssize_t adxl34x_calibrate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ /*
+ * Hardware offset calibration has a resolution of 15.6 mg/LSB.
+ * We use HW calibration and handle the remaining bits in SW. (4mg/LSB)
+ */
+
+ mutex_lock(&ac->mutex);
+ ac->hwcal.x -= (ac->saved.x / 4);
+ ac->swcal.x = ac->saved.x % 4;
+
+ ac->hwcal.y -= (ac->saved.y / 4);
+ ac->swcal.y = ac->saved.y % 4;
+
+ ac->hwcal.z -= (ac->saved.z / 4);
+ ac->swcal.z = ac->saved.z % 4;
+
+ AC_WRITE(ac, OFSX, (s8) ac->hwcal.x);
+ AC_WRITE(ac, OFSY, (s8) ac->hwcal.y);
+ AC_WRITE(ac, OFSZ, (s8) ac->hwcal.z);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(calibrate, 0664,
+ adxl34x_calibrate_show, adxl34x_calibrate_store);
+
+static ssize_t adxl34x_rate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", RATE(ac->pdata.data_rate));
+}
+
+static ssize_t adxl34x_rate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned char val;
+ int error;
+
+ error = kstrtou8(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+
+ ac->pdata.data_rate = RATE(val);
+ AC_WRITE(ac, BW_RATE,
+ ac->pdata.data_rate |
+ (ac->pdata.low_power_mode ? LOW_POWER : 0));
+
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(rate, 0664, adxl34x_rate_show, adxl34x_rate_store);
+
+static ssize_t adxl34x_autosleep_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n",
+ ac->pdata.power_mode & (PCTL_AUTO_SLEEP | PCTL_LINK) ? 1 : 0);
+}
+
+static ssize_t adxl34x_autosleep_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned int val;
+ int error;
+
+ error = kstrtouint(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+
+ if (val)
+ ac->pdata.power_mode |= (PCTL_AUTO_SLEEP | PCTL_LINK);
+ else
+ ac->pdata.power_mode &= ~(PCTL_AUTO_SLEEP | PCTL_LINK);
+
+ if (!ac->disabled && !ac->suspended && ac->opened)
+ AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);
+
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(autosleep, 0664,
+ adxl34x_autosleep_show, adxl34x_autosleep_store);
+
+static ssize_t adxl34x_position_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ ssize_t count;
+
+ mutex_lock(&ac->mutex);
+ count = sprintf(buf, "(%d, %d, %d)\n",
+ ac->saved.x, ac->saved.y, ac->saved.z);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(position, S_IRUGO, adxl34x_position_show, NULL);
+
+#ifdef ADXL_DEBUG
+static ssize_t adxl34x_write_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned int val;
+ int error;
+
+ /*
+ * This allows basic ADXL register write access for debug purposes.
+ */
+ error = kstrtouint(buf, 16, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+ AC_WRITE(ac, val >> 8, val & 0xFF);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(write, 0664, NULL, adxl34x_write_store);
+#endif
+
+static struct attribute *adxl34x_attributes[] = {
+ &dev_attr_disable.attr,
+ &dev_attr_calibrate.attr,
+ &dev_attr_rate.attr,
+ &dev_attr_autosleep.attr,
+ &dev_attr_position.attr,
+#ifdef ADXL_DEBUG
+ &dev_attr_write.attr,
+#endif
+ NULL
+};
+
+static const struct attribute_group adxl34x_attr_group = {
+ .attrs = adxl34x_attributes,
+};
+
+static int adxl34x_input_open(struct input_dev *input)
+{
+ struct adxl34x *ac = input_get_drvdata(input);
+
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && !ac->disabled)
+ __adxl34x_enable(ac);
+
+ ac->opened = true;
+
+ mutex_unlock(&ac->mutex);
+
+ return 0;
+}
+
+static void adxl34x_input_close(struct input_dev *input)
+{
+ struct adxl34x *ac = input_get_drvdata(input);
+
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && !ac->disabled)
+ __adxl34x_disable(ac);
+
+ ac->opened = false;
+
+ mutex_unlock(&ac->mutex);
+}
+
+struct adxl34x *adxl34x_probe(struct device *dev, int irq,
+ bool fifo_delay_default,
+ const struct adxl34x_bus_ops *bops)
+{
+ struct adxl34x *ac;
+ struct input_dev *input_dev;
+ const struct adxl34x_platform_data *pdata;
+ int err, range, i;
+ unsigned char revid;
+
+ if (!irq) {
+ dev_err(dev, "no IRQ?\n");
+ err = -ENODEV;
+ goto err_out;
+ }
+
+ ac = kzalloc(sizeof(*ac), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ac || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ac->fifo_delay = fifo_delay_default;
+
+ pdata = dev_get_platdata(dev);
+ if (!pdata) {
+ dev_dbg(dev,
+ "No platform data: Using default initialization\n");
+ pdata = &adxl34x_default_init;
+ }
+
+ ac->pdata = *pdata;
+ pdata = &ac->pdata;
+
+ ac->input = input_dev;
+ ac->dev = dev;
+ ac->irq = irq;
+ ac->bops = bops;
+
+ mutex_init(&ac->mutex);
+
+ input_dev->name = "ADXL34x accelerometer";
+ revid = AC_READ(ac, DEVID);
+
+ switch (revid) {
+ case ID_ADXL345:
+ ac->model = 345;
+ break;
+ case ID_ADXL346:
+ ac->model = 346;
+ break;
+ default:
+ dev_err(dev, "Failed to probe %s\n", input_dev->name);
+ err = -ENODEV;
+ goto err_free_mem;
+ }
+
+ snprintf(ac->phys, sizeof(ac->phys), "%s/input0", dev_name(dev));
+
+ input_dev->phys = ac->phys;
+ input_dev->dev.parent = dev;
+ input_dev->id.product = ac->model;
+ input_dev->id.bustype = bops->bustype;
+ input_dev->open = adxl34x_input_open;
+ input_dev->close = adxl34x_input_close;
+
+ input_set_drvdata(input_dev, ac);
+
+ __set_bit(ac->pdata.ev_type, input_dev->evbit);
+
+ if (ac->pdata.ev_type == EV_REL) {
+ __set_bit(REL_X, input_dev->relbit);
+ __set_bit(REL_Y, input_dev->relbit);
+ __set_bit(REL_Z, input_dev->relbit);
+ } else {
+ /* EV_ABS */
+ __set_bit(ABS_X, input_dev->absbit);
+ __set_bit(ABS_Y, input_dev->absbit);
+ __set_bit(ABS_Z, input_dev->absbit);
+
+ if (pdata->data_range & FULL_RES)
+ range = ADXL_FULLRES_MAX_VAL; /* Signed 13-bit */
+ else
+ range = ADXL_FIXEDRES_MAX_VAL; /* Signed 10-bit */
+
+ input_set_abs_params(input_dev, ABS_X, -range, range, 3, 3);
+ input_set_abs_params(input_dev, ABS_Y, -range, range, 3, 3);
+ input_set_abs_params(input_dev, ABS_Z, -range, range, 3, 3);
+ }
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(pdata->ev_code_tap[ADXL_X_AXIS], input_dev->keybit);
+ __set_bit(pdata->ev_code_tap[ADXL_Y_AXIS], input_dev->keybit);
+ __set_bit(pdata->ev_code_tap[ADXL_Z_AXIS], input_dev->keybit);
+
+ if (pdata->ev_code_ff) {
+ ac->int_mask = FREE_FALL;
+ __set_bit(pdata->ev_code_ff, input_dev->keybit);
+ }
+
+ if (pdata->ev_code_act_inactivity)
+ __set_bit(pdata->ev_code_act_inactivity, input_dev->keybit);
+
+ ac->int_mask |= ACTIVITY | INACTIVITY;
+
+ if (pdata->watermark) {
+ ac->int_mask |= WATERMARK;
+ if (!FIFO_MODE(pdata->fifo_mode))
+ ac->pdata.fifo_mode |= FIFO_STREAM;
+ } else {
+ ac->int_mask |= DATA_READY;
+ }
+
+ if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN))
+ ac->int_mask |= SINGLE_TAP | DOUBLE_TAP;
+
+ if (FIFO_MODE(pdata->fifo_mode) == FIFO_BYPASS)
+ ac->fifo_delay = false;
+
+ AC_WRITE(ac, POWER_CTL, 0);
+
+ err = request_threaded_irq(ac->irq, NULL, adxl34x_irq,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ dev_name(dev), ac);
+ if (err) {
+ dev_err(dev, "irq %d busy?\n", ac->irq);
+ goto err_free_mem;
+ }
+
+ err = sysfs_create_group(&dev->kobj, &adxl34x_attr_group);
+ if (err)
+ goto err_free_irq;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_attr;
+
+ AC_WRITE(ac, OFSX, pdata->x_axis_offset);
+ ac->hwcal.x = pdata->x_axis_offset;
+ AC_WRITE(ac, OFSY, pdata->y_axis_offset);
+ ac->hwcal.y = pdata->y_axis_offset;
+ AC_WRITE(ac, OFSZ, pdata->z_axis_offset);
+ ac->hwcal.z = pdata->z_axis_offset;
+ AC_WRITE(ac, THRESH_TAP, pdata->tap_threshold);
+ AC_WRITE(ac, DUR, pdata->tap_duration);
+ AC_WRITE(ac, LATENT, pdata->tap_latency);
+ AC_WRITE(ac, WINDOW, pdata->tap_window);
+ AC_WRITE(ac, THRESH_ACT, pdata->activity_threshold);
+ AC_WRITE(ac, THRESH_INACT, pdata->inactivity_threshold);
+ AC_WRITE(ac, TIME_INACT, pdata->inactivity_time);
+ AC_WRITE(ac, THRESH_FF, pdata->free_fall_threshold);
+ AC_WRITE(ac, TIME_FF, pdata->free_fall_time);
+ AC_WRITE(ac, TAP_AXES, pdata->tap_axis_control);
+ AC_WRITE(ac, ACT_INACT_CTL, pdata->act_axis_control);
+ AC_WRITE(ac, BW_RATE, RATE(ac->pdata.data_rate) |
+ (pdata->low_power_mode ? LOW_POWER : 0));
+ AC_WRITE(ac, DATA_FORMAT, pdata->data_range);
+ AC_WRITE(ac, FIFO_CTL, FIFO_MODE(pdata->fifo_mode) |
+ SAMPLES(pdata->watermark));
+
+ if (pdata->use_int2) {
+ /* Map all INTs to INT2 */
+ AC_WRITE(ac, INT_MAP, ac->int_mask | OVERRUN);
+ } else {
+ /* Map all INTs to INT1 */
+ AC_WRITE(ac, INT_MAP, 0);
+ }
+
+ if (ac->model == 346 && ac->pdata.orientation_enable) {
+ AC_WRITE(ac, ORIENT_CONF,
+ ORIENT_DEADZONE(ac->pdata.deadzone_angle) |
+ ORIENT_DIVISOR(ac->pdata.divisor_length));
+
+ ac->orient2d_saved = 1234;
+ ac->orient3d_saved = 1234;
+
+ if (pdata->orientation_enable & ADXL_EN_ORIENTATION_3D)
+ for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_3d); i++)
+ __set_bit(pdata->ev_codes_orient_3d[i],
+ input_dev->keybit);
+
+ if (pdata->orientation_enable & ADXL_EN_ORIENTATION_2D)
+ for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_2d); i++)
+ __set_bit(pdata->ev_codes_orient_2d[i],
+ input_dev->keybit);
+ } else {
+ ac->pdata.orientation_enable = 0;
+ }
+
+ AC_WRITE(ac, INT_ENABLE, ac->int_mask | OVERRUN);
+
+ ac->pdata.power_mode &= (PCTL_AUTO_SLEEP | PCTL_LINK);
+
+ return ac;
+
+ err_remove_attr:
+ sysfs_remove_group(&dev->kobj, &adxl34x_attr_group);
+ err_free_irq:
+ free_irq(ac->irq, ac);
+ err_free_mem:
+ input_free_device(input_dev);
+ kfree(ac);
+ err_out:
+ return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(adxl34x_probe);
+
+int adxl34x_remove(struct adxl34x *ac)
+{
+ sysfs_remove_group(&ac->dev->kobj, &adxl34x_attr_group);
+ free_irq(ac->irq, ac);
+ input_unregister_device(ac->input);
+ dev_dbg(ac->dev, "unregistered accelerometer\n");
+ kfree(ac);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(adxl34x_remove);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer Driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/adxl34x.h b/kernel/drivers/input/misc/adxl34x.h
new file mode 100644
index 000000000..bbbc80fda
--- /dev/null
+++ b/kernel/drivers/input/misc/adxl34x.h
@@ -0,0 +1,30 @@
+/*
+ * ADXL345/346 Three-Axis Digital Accelerometers (I2C/SPI Interface)
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _ADXL34X_H_
+#define _ADXL34X_H_
+
+struct device;
+struct adxl34x;
+
+struct adxl34x_bus_ops {
+ u16 bustype;
+ int (*read)(struct device *, unsigned char);
+ int (*read_block)(struct device *, unsigned char, int, void *);
+ int (*write)(struct device *, unsigned char, unsigned char);
+};
+
+void adxl34x_suspend(struct adxl34x *ac);
+void adxl34x_resume(struct adxl34x *ac);
+struct adxl34x *adxl34x_probe(struct device *dev, int irq,
+ bool fifo_delay_default,
+ const struct adxl34x_bus_ops *bops);
+int adxl34x_remove(struct adxl34x *ac);
+
+#endif
diff --git a/kernel/drivers/input/misc/apanel.c b/kernel/drivers/input/misc/apanel.c
new file mode 100644
index 000000000..a8d2b8db4
--- /dev/null
+++ b/kernel/drivers/input/misc/apanel.c
@@ -0,0 +1,350 @@
+/*
+ * Fujitsu Lifebook Application Panel button drive
+ *
+ * Copyright (C) 2007 Stephen Hemminger <shemminger@linux-foundation.org>
+ * Copyright (C) 2001-2003 Jochen Eisinger <jochen@penguin-breeder.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Many Fujitsu Lifebook laptops have a small panel of buttons that are
+ * accessible via the i2c/smbus interface. This driver polls those
+ * buttons and generates input events.
+ *
+ * For more details see:
+ * http://apanel.sourceforge.net/tech.php
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/input-polldev.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+#include <linux/leds.h>
+
+#define APANEL_NAME "Fujitsu Application Panel"
+#define APANEL_VERSION "1.3.1"
+#define APANEL "apanel"
+
+/* How often we poll keys - msecs */
+#define POLL_INTERVAL_DEFAULT 1000
+
+/* Magic constants in BIOS that tell about buttons */
+enum apanel_devid {
+ APANEL_DEV_NONE = 0,
+ APANEL_DEV_APPBTN = 1,
+ APANEL_DEV_CDBTN = 2,
+ APANEL_DEV_LCD = 3,
+ APANEL_DEV_LED = 4,
+
+ APANEL_DEV_MAX,
+};
+
+enum apanel_chip {
+ CHIP_NONE = 0,
+ CHIP_OZ992C = 1,
+ CHIP_OZ163T = 2,
+ CHIP_OZ711M3 = 4,
+};
+
+/* Result of BIOS snooping/probing -- what features are supported */
+static enum apanel_chip device_chip[APANEL_DEV_MAX];
+
+#define MAX_PANEL_KEYS 12
+
+struct apanel {
+ struct input_polled_dev *ipdev;
+ struct i2c_client *client;
+ unsigned short keymap[MAX_PANEL_KEYS];
+ u16 nkeys;
+ u16 led_bits;
+ struct work_struct led_work;
+ struct led_classdev mail_led;
+};
+
+
+static int apanel_probe(struct i2c_client *, const struct i2c_device_id *);
+
+static void report_key(struct input_dev *input, unsigned keycode)
+{
+ pr_debug(APANEL ": report key %#x\n", keycode);
+ input_report_key(input, keycode, 1);
+ input_sync(input);
+
+ input_report_key(input, keycode, 0);
+ input_sync(input);
+}
+
+/* Poll for key changes
+ *
+ * Read Application keys via SMI
+ * A (0x4), B (0x8), Internet (0x2), Email (0x1).
+ *
+ * CD keys:
+ * Forward (0x100), Rewind (0x200), Stop (0x400), Pause (0x800)
+ */
+static void apanel_poll(struct input_polled_dev *ipdev)
+{
+ struct apanel *ap = ipdev->private;
+ struct input_dev *idev = ipdev->input;
+ u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
+ s32 data;
+ int i;
+
+ data = i2c_smbus_read_word_data(ap->client, cmd);
+ if (data < 0)
+ return; /* ignore errors (due to ACPI??) */
+
+ /* write back to clear latch */
+ i2c_smbus_write_word_data(ap->client, cmd, 0);
+
+ if (!data)
+ return;
+
+ dev_dbg(&idev->dev, APANEL ": data %#x\n", data);
+ for (i = 0; i < idev->keycodemax; i++)
+ if ((1u << i) & data)
+ report_key(idev, ap->keymap[i]);
+}
+
+/* Track state changes of LED */
+static void led_update(struct work_struct *work)
+{
+ struct apanel *ap = container_of(work, struct apanel, led_work);
+
+ i2c_smbus_write_word_data(ap->client, 0x10, ap->led_bits);
+}
+
+static void mail_led_set(struct led_classdev *led,
+ enum led_brightness value)
+{
+ struct apanel *ap = container_of(led, struct apanel, mail_led);
+
+ if (value != LED_OFF)
+ ap->led_bits |= 0x8000;
+ else
+ ap->led_bits &= ~0x8000;
+
+ schedule_work(&ap->led_work);
+}
+
+static int apanel_remove(struct i2c_client *client)
+{
+ struct apanel *ap = i2c_get_clientdata(client);
+
+ if (device_chip[APANEL_DEV_LED] != CHIP_NONE)
+ led_classdev_unregister(&ap->mail_led);
+
+ input_unregister_polled_device(ap->ipdev);
+ input_free_polled_device(ap->ipdev);
+
+ return 0;
+}
+
+static void apanel_shutdown(struct i2c_client *client)
+{
+ apanel_remove(client);
+}
+
+static const struct i2c_device_id apanel_id[] = {
+ { "fujitsu_apanel", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, apanel_id);
+
+static struct i2c_driver apanel_driver = {
+ .driver = {
+ .name = APANEL,
+ },
+ .probe = &apanel_probe,
+ .remove = &apanel_remove,
+ .shutdown = &apanel_shutdown,
+ .id_table = apanel_id,
+};
+
+static struct apanel apanel = {
+ .keymap = {
+ [0] = KEY_MAIL,
+ [1] = KEY_WWW,
+ [2] = KEY_PROG2,
+ [3] = KEY_PROG1,
+
+ [8] = KEY_FORWARD,
+ [9] = KEY_REWIND,
+ [10] = KEY_STOPCD,
+ [11] = KEY_PLAYPAUSE,
+
+ },
+ .mail_led = {
+ .name = "mail:blue",
+ .brightness_set = mail_led_set,
+ },
+};
+
+/* NB: Only one panel on the i2c. */
+static int apanel_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct apanel *ap;
+ struct input_polled_dev *ipdev;
+ struct input_dev *idev;
+ u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
+ int i, err = -ENOMEM;
+
+ ap = &apanel;
+
+ ipdev = input_allocate_polled_device();
+ if (!ipdev)
+ goto out1;
+
+ ap->ipdev = ipdev;
+ ap->client = client;
+
+ i2c_set_clientdata(client, ap);
+
+ err = i2c_smbus_write_word_data(client, cmd, 0);
+ if (err) {
+ dev_warn(&client->dev, APANEL ": smbus write error %d\n",
+ err);
+ goto out3;
+ }
+
+ ipdev->poll = apanel_poll;
+ ipdev->poll_interval = POLL_INTERVAL_DEFAULT;
+ ipdev->private = ap;
+
+ idev = ipdev->input;
+ idev->name = APANEL_NAME " buttons";
+ idev->phys = "apanel/input0";
+ idev->id.bustype = BUS_HOST;
+ idev->dev.parent = &client->dev;
+
+ set_bit(EV_KEY, idev->evbit);
+
+ idev->keycode = ap->keymap;
+ idev->keycodesize = sizeof(ap->keymap[0]);
+ idev->keycodemax = (device_chip[APANEL_DEV_CDBTN] != CHIP_NONE) ? 12 : 4;
+
+ for (i = 0; i < idev->keycodemax; i++)
+ if (ap->keymap[i])
+ set_bit(ap->keymap[i], idev->keybit);
+
+ err = input_register_polled_device(ipdev);
+ if (err)
+ goto out3;
+
+ INIT_WORK(&ap->led_work, led_update);
+ if (device_chip[APANEL_DEV_LED] != CHIP_NONE) {
+ err = led_classdev_register(&client->dev, &ap->mail_led);
+ if (err)
+ goto out4;
+ }
+
+ return 0;
+out4:
+ input_unregister_polled_device(ipdev);
+out3:
+ input_free_polled_device(ipdev);
+out1:
+ return err;
+}
+
+/* Scan the system ROM for the signature "FJKEYINF" */
+static __init const void __iomem *bios_signature(const void __iomem *bios)
+{
+ ssize_t offset;
+ const unsigned char signature[] = "FJKEYINF";
+
+ for (offset = 0; offset < 0x10000; offset += 0x10) {
+ if (check_signature(bios + offset, signature,
+ sizeof(signature)-1))
+ return bios + offset;
+ }
+ pr_notice(APANEL ": Fujitsu BIOS signature '%s' not found...\n",
+ signature);
+ return NULL;
+}
+
+static int __init apanel_init(void)
+{
+ void __iomem *bios;
+ const void __iomem *p;
+ u8 devno;
+ unsigned char i2c_addr;
+ int found = 0;
+
+ bios = ioremap(0xF0000, 0x10000); /* Can't fail */
+
+ p = bios_signature(bios);
+ if (!p) {
+ iounmap(bios);
+ return -ENODEV;
+ }
+
+ /* just use the first address */
+ p += 8;
+ i2c_addr = readb(p + 3) >> 1;
+
+ for ( ; (devno = readb(p)) & 0x7f; p += 4) {
+ unsigned char method, slave, chip;
+
+ method = readb(p + 1);
+ chip = readb(p + 2);
+ slave = readb(p + 3) >> 1;
+
+ if (slave != i2c_addr) {
+ pr_notice(APANEL ": only one SMBus slave "
+ "address supported, skiping device...\n");
+ continue;
+ }
+
+ /* translate alternative device numbers */
+ switch (devno) {
+ case 6:
+ devno = APANEL_DEV_APPBTN;
+ break;
+ case 7:
+ devno = APANEL_DEV_LED;
+ break;
+ }
+
+ if (devno >= APANEL_DEV_MAX)
+ pr_notice(APANEL ": unknown device %u found\n", devno);
+ else if (device_chip[devno] != CHIP_NONE)
+ pr_warning(APANEL ": duplicate entry for devno %u\n", devno);
+
+ else if (method != 1 && method != 2 && method != 4) {
+ pr_notice(APANEL ": unknown method %u for devno %u\n",
+ method, devno);
+ } else {
+ device_chip[devno] = (enum apanel_chip) chip;
+ ++found;
+ }
+ }
+ iounmap(bios);
+
+ if (found == 0) {
+ pr_info(APANEL ": no input devices reported by BIOS\n");
+ return -EIO;
+ }
+
+ return i2c_add_driver(&apanel_driver);
+}
+module_init(apanel_init);
+
+static void __exit apanel_cleanup(void)
+{
+ i2c_del_driver(&apanel_driver);
+}
+module_exit(apanel_cleanup);
+
+MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
+MODULE_DESCRIPTION(APANEL_NAME " driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(APANEL_VERSION);
+
+MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifeBook*:pvr*:rvnFUJITSU:*");
+MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifebook*:pvr*:rvnFUJITSU:*");
diff --git a/kernel/drivers/input/misc/arizona-haptics.c b/kernel/drivers/input/misc/arizona-haptics.c
new file mode 100644
index 000000000..4dbbed74c
--- /dev/null
+++ b/kernel/drivers/input/misc/arizona-haptics.c
@@ -0,0 +1,235 @@
+/*
+ * Arizona haptics driver
+ *
+ * Copyright 2012 Wolfson Microelectronics plc
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <linux/mfd/arizona/core.h>
+#include <linux/mfd/arizona/pdata.h>
+#include <linux/mfd/arizona/registers.h>
+
+struct arizona_haptics {
+ struct arizona *arizona;
+ struct input_dev *input_dev;
+ struct work_struct work;
+
+ struct mutex mutex;
+ u8 intensity;
+};
+
+static void arizona_haptics_work(struct work_struct *work)
+{
+ struct arizona_haptics *haptics = container_of(work,
+ struct arizona_haptics,
+ work);
+ struct arizona *arizona = haptics->arizona;
+ int ret;
+
+ if (!haptics->arizona->dapm) {
+ dev_err(arizona->dev, "No DAPM context\n");
+ return;
+ }
+
+ if (haptics->intensity) {
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_HAPTICS_PHASE_2_INTENSITY,
+ ARIZONA_PHASE2_INTENSITY_MASK,
+ haptics->intensity);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to set intensity: %d\n",
+ ret);
+ return;
+ }
+
+ /* This enable sequence will be a noop if already enabled */
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_HAPTICS_CONTROL_1,
+ ARIZONA_HAP_CTRL_MASK,
+ 1 << ARIZONA_HAP_CTRL_SHIFT);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to start haptics: %d\n",
+ ret);
+ return;
+ }
+
+ ret = snd_soc_dapm_enable_pin(arizona->dapm, "HAPTICS");
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to start HAPTICS: %d\n",
+ ret);
+ return;
+ }
+
+ ret = snd_soc_dapm_sync(arizona->dapm);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
+ ret);
+ return;
+ }
+ } else {
+ /* This disable sequence will be a noop if already enabled */
+ ret = snd_soc_dapm_disable_pin(arizona->dapm, "HAPTICS");
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to disable HAPTICS: %d\n",
+ ret);
+ return;
+ }
+
+ ret = snd_soc_dapm_sync(arizona->dapm);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
+ ret);
+ return;
+ }
+
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_HAPTICS_CONTROL_1,
+ ARIZONA_HAP_CTRL_MASK,
+ 1 << ARIZONA_HAP_CTRL_SHIFT);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to stop haptics: %d\n",
+ ret);
+ return;
+ }
+ }
+}
+
+static int arizona_haptics_play(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct arizona_haptics *haptics = input_get_drvdata(input);
+ struct arizona *arizona = haptics->arizona;
+
+ if (!arizona->dapm) {
+ dev_err(arizona->dev, "No DAPM context\n");
+ return -EBUSY;
+ }
+
+ if (effect->u.rumble.strong_magnitude) {
+ /* Scale the magnitude into the range the device supports */
+ if (arizona->pdata.hap_act) {
+ haptics->intensity =
+ effect->u.rumble.strong_magnitude >> 9;
+ if (effect->direction < 0x8000)
+ haptics->intensity += 0x7f;
+ } else {
+ haptics->intensity =
+ effect->u.rumble.strong_magnitude >> 8;
+ }
+ } else {
+ haptics->intensity = 0;
+ }
+
+ schedule_work(&haptics->work);
+
+ return 0;
+}
+
+static void arizona_haptics_close(struct input_dev *input)
+{
+ struct arizona_haptics *haptics = input_get_drvdata(input);
+
+ cancel_work_sync(&haptics->work);
+
+ if (haptics->arizona->dapm)
+ snd_soc_dapm_disable_pin(haptics->arizona->dapm, "HAPTICS");
+}
+
+static int arizona_haptics_probe(struct platform_device *pdev)
+{
+ struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
+ struct arizona_haptics *haptics;
+ int ret;
+
+ haptics = devm_kzalloc(&pdev->dev, sizeof(*haptics), GFP_KERNEL);
+ if (!haptics)
+ return -ENOMEM;
+
+ haptics->arizona = arizona;
+
+ ret = regmap_update_bits(arizona->regmap, ARIZONA_HAPTICS_CONTROL_1,
+ ARIZONA_HAP_ACT, arizona->pdata.hap_act);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to set haptics actuator: %d\n",
+ ret);
+ return ret;
+ }
+
+ INIT_WORK(&haptics->work, arizona_haptics_work);
+
+ haptics->input_dev = input_allocate_device();
+ if (haptics->input_dev == NULL) {
+ dev_err(arizona->dev, "Failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_set_drvdata(haptics->input_dev, haptics);
+
+ haptics->input_dev->name = "arizona:haptics";
+ haptics->input_dev->dev.parent = pdev->dev.parent;
+ haptics->input_dev->close = arizona_haptics_close;
+ __set_bit(FF_RUMBLE, haptics->input_dev->ffbit);
+
+ ret = input_ff_create_memless(haptics->input_dev, NULL,
+ arizona_haptics_play);
+ if (ret < 0) {
+ dev_err(arizona->dev, "input_ff_create_memless() failed: %d\n",
+ ret);
+ goto err_ialloc;
+ }
+
+ ret = input_register_device(haptics->input_dev);
+ if (ret < 0) {
+ dev_err(arizona->dev, "couldn't register input device: %d\n",
+ ret);
+ goto err_iff;
+ }
+
+ platform_set_drvdata(pdev, haptics);
+
+ return 0;
+
+err_iff:
+ if (haptics->input_dev)
+ input_ff_destroy(haptics->input_dev);
+err_ialloc:
+ input_free_device(haptics->input_dev);
+
+ return ret;
+}
+
+static int arizona_haptics_remove(struct platform_device *pdev)
+{
+ struct arizona_haptics *haptics = platform_get_drvdata(pdev);
+
+ input_unregister_device(haptics->input_dev);
+
+ return 0;
+}
+
+static struct platform_driver arizona_haptics_driver = {
+ .probe = arizona_haptics_probe,
+ .remove = arizona_haptics_remove,
+ .driver = {
+ .name = "arizona-haptics",
+ },
+};
+module_platform_driver(arizona_haptics_driver);
+
+MODULE_ALIAS("platform:arizona-haptics");
+MODULE_DESCRIPTION("Arizona haptics driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
diff --git a/kernel/drivers/input/misc/ati_remote2.c b/kernel/drivers/input/misc/ati_remote2.c
new file mode 100644
index 000000000..f63341f20
--- /dev/null
+++ b/kernel/drivers/input/misc/ati_remote2.c
@@ -0,0 +1,1016 @@
+/*
+ * ati_remote2 - ATI/Philips USB RF remote driver
+ *
+ * Copyright (C) 2005-2008 Ville Syrjala <syrjala@sci.fi>
+ * Copyright (C) 2007-2008 Peter Stokes <linux@dadeos.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/usb/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#define DRIVER_DESC "ATI/Philips USB RF remote driver"
+#define DRIVER_VERSION "0.3"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>");
+MODULE_LICENSE("GPL");
+
+/*
+ * ATI Remote Wonder II Channel Configuration
+ *
+ * The remote control can by assigned one of sixteen "channels" in order to facilitate
+ * the use of multiple remote controls within range of each other.
+ * A remote's "channel" may be altered by pressing and holding the "PC" button for
+ * approximately 3 seconds, after which the button will slowly flash the count of the
+ * currently configured "channel", using the numeric keypad enter a number between 1 and
+ * 16 and then press the "PC" button again, the button will slowly flash the count of the
+ * newly configured "channel".
+ */
+
+enum {
+ ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
+ ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
+};
+
+static int ati_remote2_set_mask(const char *val,
+ const struct kernel_param *kp,
+ unsigned int max)
+{
+ unsigned int mask;
+ int ret;
+
+ if (!val)
+ return -EINVAL;
+
+ ret = kstrtouint(val, 0, &mask);
+ if (ret)
+ return ret;
+
+ if (mask & ~max)
+ return -EINVAL;
+
+ *(unsigned int *)kp->arg = mask;
+
+ return 0;
+}
+
+static int ati_remote2_set_channel_mask(const char *val,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
+}
+
+static int ati_remote2_get_channel_mask(char *buffer,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
+}
+
+static int ati_remote2_set_mode_mask(const char *val,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
+}
+
+static int ati_remote2_get_mode_mask(char *buffer,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
+}
+
+static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
+#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
+static struct kernel_param_ops param_ops_channel_mask = {
+ .set = ati_remote2_set_channel_mask,
+ .get = ati_remote2_get_channel_mask,
+};
+module_param(channel_mask, channel_mask, 0644);
+MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
+
+static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
+#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
+static struct kernel_param_ops param_ops_mode_mask = {
+ .set = ati_remote2_set_mode_mask,
+ .get = ati_remote2_get_mode_mask,
+};
+module_param(mode_mask, mode_mask, 0644);
+MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
+
+static struct usb_device_id ati_remote2_id_table[] = {
+ { USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */
+ { }
+};
+MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
+
+static DEFINE_MUTEX(ati_remote2_mutex);
+
+enum {
+ ATI_REMOTE2_OPENED = 0x1,
+ ATI_REMOTE2_SUSPENDED = 0x2,
+};
+
+enum {
+ ATI_REMOTE2_AUX1,
+ ATI_REMOTE2_AUX2,
+ ATI_REMOTE2_AUX3,
+ ATI_REMOTE2_AUX4,
+ ATI_REMOTE2_PC,
+ ATI_REMOTE2_MODES,
+};
+
+static const struct {
+ u8 hw_code;
+ u16 keycode;
+} ati_remote2_key_table[] = {
+ { 0x00, KEY_0 },
+ { 0x01, KEY_1 },
+ { 0x02, KEY_2 },
+ { 0x03, KEY_3 },
+ { 0x04, KEY_4 },
+ { 0x05, KEY_5 },
+ { 0x06, KEY_6 },
+ { 0x07, KEY_7 },
+ { 0x08, KEY_8 },
+ { 0x09, KEY_9 },
+ { 0x0c, KEY_POWER },
+ { 0x0d, KEY_MUTE },
+ { 0x10, KEY_VOLUMEUP },
+ { 0x11, KEY_VOLUMEDOWN },
+ { 0x20, KEY_CHANNELUP },
+ { 0x21, KEY_CHANNELDOWN },
+ { 0x28, KEY_FORWARD },
+ { 0x29, KEY_REWIND },
+ { 0x2c, KEY_PLAY },
+ { 0x30, KEY_PAUSE },
+ { 0x31, KEY_STOP },
+ { 0x37, KEY_RECORD },
+ { 0x38, KEY_DVD },
+ { 0x39, KEY_TV },
+ { 0x3f, KEY_PROG1 }, /* AUX1-AUX4 and PC */
+ { 0x54, KEY_MENU },
+ { 0x58, KEY_UP },
+ { 0x59, KEY_DOWN },
+ { 0x5a, KEY_LEFT },
+ { 0x5b, KEY_RIGHT },
+ { 0x5c, KEY_OK },
+ { 0x78, KEY_A },
+ { 0x79, KEY_B },
+ { 0x7a, KEY_C },
+ { 0x7b, KEY_D },
+ { 0x7c, KEY_E },
+ { 0x7d, KEY_F },
+ { 0x82, KEY_ENTER },
+ { 0x8e, KEY_VENDOR },
+ { 0x96, KEY_COFFEE },
+ { 0xa9, BTN_LEFT },
+ { 0xaa, BTN_RIGHT },
+ { 0xbe, KEY_QUESTION },
+ { 0xd0, KEY_EDIT },
+ { 0xd5, KEY_FRONT },
+ { 0xf9, KEY_INFO },
+};
+
+struct ati_remote2 {
+ struct input_dev *idev;
+ struct usb_device *udev;
+
+ struct usb_interface *intf[2];
+ struct usb_endpoint_descriptor *ep[2];
+ struct urb *urb[2];
+ void *buf[2];
+ dma_addr_t buf_dma[2];
+
+ unsigned long jiffies;
+ int mode;
+
+ char name[64];
+ char phys[64];
+
+ /* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */
+ u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
+
+ unsigned int flags;
+
+ unsigned int channel_mask;
+ unsigned int mode_mask;
+};
+
+static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
+static void ati_remote2_disconnect(struct usb_interface *interface);
+static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
+static int ati_remote2_resume(struct usb_interface *interface);
+static int ati_remote2_reset_resume(struct usb_interface *interface);
+static int ati_remote2_pre_reset(struct usb_interface *interface);
+static int ati_remote2_post_reset(struct usb_interface *interface);
+
+static struct usb_driver ati_remote2_driver = {
+ .name = "ati_remote2",
+ .probe = ati_remote2_probe,
+ .disconnect = ati_remote2_disconnect,
+ .id_table = ati_remote2_id_table,
+ .suspend = ati_remote2_suspend,
+ .resume = ati_remote2_resume,
+ .reset_resume = ati_remote2_reset_resume,
+ .pre_reset = ati_remote2_pre_reset,
+ .post_reset = ati_remote2_post_reset,
+ .supports_autosuspend = 1,
+};
+
+static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
+{
+ int r;
+
+ r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
+ if (r) {
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+ return r;
+ }
+ r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
+ if (r) {
+ usb_kill_urb(ar2->urb[0]);
+ dev_err(&ar2->intf[1]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+ return r;
+ }
+
+ return 0;
+}
+
+static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
+{
+ usb_kill_urb(ar2->urb[1]);
+ usb_kill_urb(ar2->urb[0]);
+}
+
+static int ati_remote2_open(struct input_dev *idev)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+ int r;
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ r = usb_autopm_get_interface(ar2->intf[0]);
+ if (r) {
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+ goto fail1;
+ }
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
+ r = ati_remote2_submit_urbs(ar2);
+ if (r)
+ goto fail2;
+ }
+
+ ar2->flags |= ATI_REMOTE2_OPENED;
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ usb_autopm_put_interface(ar2->intf[0]);
+
+ return 0;
+
+ fail2:
+ mutex_unlock(&ati_remote2_mutex);
+ usb_autopm_put_interface(ar2->intf[0]);
+ fail1:
+ return r;
+}
+
+static void ati_remote2_close(struct input_dev *idev)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
+ ati_remote2_kill_urbs(ar2);
+
+ ar2->flags &= ~ATI_REMOTE2_OPENED;
+
+ mutex_unlock(&ati_remote2_mutex);
+}
+
+static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
+{
+ struct input_dev *idev = ar2->idev;
+ u8 *data = ar2->buf[0];
+ int channel, mode;
+
+ channel = data[0] >> 4;
+
+ if (!((1 << channel) & ar2->channel_mask))
+ return;
+
+ mode = data[0] & 0x0F;
+
+ if (mode > ATI_REMOTE2_PC) {
+ dev_err(&ar2->intf[0]->dev,
+ "Unknown mode byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ if (!((1 << mode) & ar2->mode_mask))
+ return;
+
+ input_event(idev, EV_REL, REL_X, (s8) data[1]);
+ input_event(idev, EV_REL, REL_Y, (s8) data[2]);
+ input_sync(idev);
+}
+
+static int ati_remote2_lookup(unsigned int hw_code)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++)
+ if (ati_remote2_key_table[i].hw_code == hw_code)
+ return i;
+
+ return -1;
+}
+
+static void ati_remote2_input_key(struct ati_remote2 *ar2)
+{
+ struct input_dev *idev = ar2->idev;
+ u8 *data = ar2->buf[1];
+ int channel, mode, hw_code, index;
+
+ channel = data[0] >> 4;
+
+ if (!((1 << channel) & ar2->channel_mask))
+ return;
+
+ mode = data[0] & 0x0F;
+
+ if (mode > ATI_REMOTE2_PC) {
+ dev_err(&ar2->intf[1]->dev,
+ "Unknown mode byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ hw_code = data[2];
+ if (hw_code == 0x3f) {
+ /*
+ * For some incomprehensible reason the mouse pad generates
+ * events which look identical to the events from the last
+ * pressed mode key. Naturally we don't want to generate key
+ * events for the mouse pad so we filter out any subsequent
+ * events from the same mode key.
+ */
+ if (ar2->mode == mode)
+ return;
+
+ if (data[1] == 0)
+ ar2->mode = mode;
+ }
+
+ if (!((1 << mode) & ar2->mode_mask))
+ return;
+
+ index = ati_remote2_lookup(hw_code);
+ if (index < 0) {
+ dev_err(&ar2->intf[1]->dev,
+ "Unknown code byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ switch (data[1]) {
+ case 0: /* release */
+ break;
+ case 1: /* press */
+ ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
+ break;
+ case 2: /* repeat */
+
+ /* No repeat for mouse buttons. */
+ if (ar2->keycode[mode][index] == BTN_LEFT ||
+ ar2->keycode[mode][index] == BTN_RIGHT)
+ return;
+
+ if (!time_after_eq(jiffies, ar2->jiffies))
+ return;
+
+ ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
+ break;
+ default:
+ dev_err(&ar2->intf[1]->dev,
+ "Unknown state byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]);
+ input_sync(idev);
+}
+
+static void ati_remote2_complete_mouse(struct urb *urb)
+{
+ struct ati_remote2 *ar2 = urb->context;
+ int r;
+
+ switch (urb->status) {
+ case 0:
+ usb_mark_last_busy(ar2->udev);
+ ati_remote2_input_mouse(ar2);
+ break;
+ case -ENOENT:
+ case -EILSEQ:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ dev_dbg(&ar2->intf[0]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ return;
+ default:
+ usb_mark_last_busy(ar2->udev);
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ }
+
+ r = usb_submit_urb(urb, GFP_ATOMIC);
+ if (r)
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+}
+
+static void ati_remote2_complete_key(struct urb *urb)
+{
+ struct ati_remote2 *ar2 = urb->context;
+ int r;
+
+ switch (urb->status) {
+ case 0:
+ usb_mark_last_busy(ar2->udev);
+ ati_remote2_input_key(ar2);
+ break;
+ case -ENOENT:
+ case -EILSEQ:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ dev_dbg(&ar2->intf[1]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ return;
+ default:
+ usb_mark_last_busy(ar2->udev);
+ dev_err(&ar2->intf[1]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ }
+
+ r = usb_submit_urb(urb, GFP_ATOMIC);
+ if (r)
+ dev_err(&ar2->intf[1]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+}
+
+static int ati_remote2_getkeycode(struct input_dev *idev,
+ struct input_keymap_entry *ke)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+ unsigned int mode;
+ int offset;
+ unsigned int index;
+ unsigned int scancode;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
+ index = ke->index;
+ if (index >= ATI_REMOTE2_MODES *
+ ARRAY_SIZE(ati_remote2_key_table))
+ return -EINVAL;
+
+ mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
+ offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
+ scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
+ } else {
+ if (input_scancode_to_scalar(ke, &scancode))
+ return -EINVAL;
+
+ mode = scancode >> 8;
+ if (mode > ATI_REMOTE2_PC)
+ return -EINVAL;
+
+ offset = ati_remote2_lookup(scancode & 0xff);
+ if (offset < 0)
+ return -EINVAL;
+
+ index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
+ }
+
+ ke->keycode = ar2->keycode[mode][offset];
+ ke->len = sizeof(scancode);
+ memcpy(&ke->scancode, &scancode, sizeof(scancode));
+ ke->index = index;
+
+ return 0;
+}
+
+static int ati_remote2_setkeycode(struct input_dev *idev,
+ const struct input_keymap_entry *ke,
+ unsigned int *old_keycode)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+ unsigned int mode;
+ int offset;
+ unsigned int index;
+ unsigned int scancode;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
+ if (ke->index >= ATI_REMOTE2_MODES *
+ ARRAY_SIZE(ati_remote2_key_table))
+ return -EINVAL;
+
+ mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
+ offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
+ } else {
+ if (input_scancode_to_scalar(ke, &scancode))
+ return -EINVAL;
+
+ mode = scancode >> 8;
+ if (mode > ATI_REMOTE2_PC)
+ return -EINVAL;
+
+ offset = ati_remote2_lookup(scancode & 0xff);
+ if (offset < 0)
+ return -EINVAL;
+ }
+
+ *old_keycode = ar2->keycode[mode][offset];
+ ar2->keycode[mode][offset] = ke->keycode;
+ __set_bit(ke->keycode, idev->keybit);
+
+ for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
+ for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
+ if (ar2->keycode[mode][index] == *old_keycode)
+ return 0;
+ }
+ }
+
+ __clear_bit(*old_keycode, idev->keybit);
+
+ return 0;
+}
+
+static int ati_remote2_input_init(struct ati_remote2 *ar2)
+{
+ struct input_dev *idev;
+ int index, mode, retval;
+
+ idev = input_allocate_device();
+ if (!idev)
+ return -ENOMEM;
+
+ ar2->idev = idev;
+ input_set_drvdata(idev, ar2);
+
+ idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL);
+ idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_RIGHT);
+ idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
+ for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
+ ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode;
+ __set_bit(ar2->keycode[mode][index], idev->keybit);
+ }
+ }
+
+ /* AUX1-AUX4 and PC generate the same scancode. */
+ index = ati_remote2_lookup(0x3f);
+ ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1;
+ ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2;
+ ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3;
+ ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4;
+ ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC;
+ __set_bit(KEY_PROG1, idev->keybit);
+ __set_bit(KEY_PROG2, idev->keybit);
+ __set_bit(KEY_PROG3, idev->keybit);
+ __set_bit(KEY_PROG4, idev->keybit);
+ __set_bit(KEY_PC, idev->keybit);
+
+ idev->rep[REP_DELAY] = 250;
+ idev->rep[REP_PERIOD] = 33;
+
+ idev->open = ati_remote2_open;
+ idev->close = ati_remote2_close;
+
+ idev->getkeycode = ati_remote2_getkeycode;
+ idev->setkeycode = ati_remote2_setkeycode;
+
+ idev->name = ar2->name;
+ idev->phys = ar2->phys;
+
+ usb_to_input_id(ar2->udev, &idev->id);
+ idev->dev.parent = &ar2->udev->dev;
+
+ retval = input_register_device(idev);
+ if (retval)
+ input_free_device(idev);
+
+ return retval;
+}
+
+static int ati_remote2_urb_init(struct ati_remote2 *ar2)
+{
+ struct usb_device *udev = ar2->udev;
+ int i, pipe, maxp;
+
+ for (i = 0; i < 2; i++) {
+ ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
+ if (!ar2->buf[i])
+ return -ENOMEM;
+
+ ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ar2->urb[i])
+ return -ENOMEM;
+
+ pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ maxp = maxp > 4 ? 4 : maxp;
+
+ usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
+ i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
+ ar2, ar2->ep[i]->bInterval);
+ ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
+ ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ }
+
+ return 0;
+}
+
+static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ usb_free_urb(ar2->urb[i]);
+ usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
+ }
+}
+
+static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
+{
+ int r, i, channel;
+
+ /*
+ * Configure receiver to only accept input from remote "channel"
+ * channel == 0 -> Accept input from any remote channel
+ * channel == 1 -> Only accept input from remote channel 1
+ * channel == 2 -> Only accept input from remote channel 2
+ * ...
+ * channel == 16 -> Only accept input from remote channel 16
+ */
+
+ channel = 0;
+ for (i = 0; i < 16; i++) {
+ if ((1 << i) & ch_mask) {
+ if (!(~(1 << i) & ch_mask))
+ channel = i + 1;
+ break;
+ }
+ }
+
+ r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0),
+ 0x20,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+ channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+ if (r) {
+ dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n",
+ __func__, r);
+ return r;
+ }
+
+ return 0;
+}
+
+static ssize_t ati_remote2_show_channel_mask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+ return sprintf(buf, "0x%04x\n", ar2->channel_mask);
+}
+
+static ssize_t ati_remote2_store_channel_mask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+ unsigned int mask;
+ int r;
+
+ r = kstrtouint(buf, 0, &mask);
+ if (r)
+ return r;
+
+ if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
+ return -EINVAL;
+
+ r = usb_autopm_get_interface(ar2->intf[0]);
+ if (r) {
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+ return r;
+ }
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (mask != ar2->channel_mask) {
+ r = ati_remote2_setup(ar2, mask);
+ if (!r)
+ ar2->channel_mask = mask;
+ }
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ usb_autopm_put_interface(ar2->intf[0]);
+
+ return r ? r : count;
+}
+
+static ssize_t ati_remote2_show_mode_mask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+ return sprintf(buf, "0x%02x\n", ar2->mode_mask);
+}
+
+static ssize_t ati_remote2_store_mode_mask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+ unsigned int mask;
+ int err;
+
+ err = kstrtouint(buf, 0, &mask);
+ if (err)
+ return err;
+
+ if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
+ return -EINVAL;
+
+ ar2->mode_mask = mask;
+
+ return count;
+}
+
+static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
+ ati_remote2_store_channel_mask);
+
+static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
+ ati_remote2_store_mode_mask);
+
+static struct attribute *ati_remote2_attrs[] = {
+ &dev_attr_channel_mask.attr,
+ &dev_attr_mode_mask.attr,
+ NULL,
+};
+
+static struct attribute_group ati_remote2_attr_group = {
+ .attrs = ati_remote2_attrs,
+};
+
+static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ struct ati_remote2 *ar2;
+ int r;
+
+ if (alt->desc.bInterfaceNumber)
+ return -ENODEV;
+
+ ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
+ if (!ar2)
+ return -ENOMEM;
+
+ ar2->udev = udev;
+
+ ar2->intf[0] = interface;
+ ar2->ep[0] = &alt->endpoint[0].desc;
+
+ ar2->intf[1] = usb_ifnum_to_if(udev, 1);
+ r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
+ if (r)
+ goto fail1;
+ alt = ar2->intf[1]->cur_altsetting;
+ ar2->ep[1] = &alt->endpoint[0].desc;
+
+ r = ati_remote2_urb_init(ar2);
+ if (r)
+ goto fail2;
+
+ ar2->channel_mask = channel_mask;
+ ar2->mode_mask = mode_mask;
+
+ r = ati_remote2_setup(ar2, ar2->channel_mask);
+ if (r)
+ goto fail2;
+
+ usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
+ strlcat(ar2->phys, "/input0", sizeof(ar2->phys));
+
+ strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
+
+ r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
+ if (r)
+ goto fail2;
+
+ r = ati_remote2_input_init(ar2);
+ if (r)
+ goto fail3;
+
+ usb_set_intfdata(interface, ar2);
+
+ interface->needs_remote_wakeup = 1;
+
+ return 0;
+
+ fail3:
+ sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
+ fail2:
+ ati_remote2_urb_cleanup(ar2);
+ usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
+ fail1:
+ kfree(ar2);
+
+ return r;
+}
+
+static void ati_remote2_disconnect(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+
+ if (alt->desc.bInterfaceNumber)
+ return;
+
+ ar2 = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ input_unregister_device(ar2->idev);
+
+ sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
+
+ ati_remote2_urb_cleanup(ar2);
+
+ usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
+
+ kfree(ar2);
+}
+
+static int ati_remote2_suspend(struct usb_interface *interface,
+ pm_message_t message)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (ar2->flags & ATI_REMOTE2_OPENED)
+ ati_remote2_kill_urbs(ar2);
+
+ ar2->flags |= ATI_REMOTE2_SUSPENDED;
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ return 0;
+}
+
+static int ati_remote2_resume(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (ar2->flags & ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ if (!r)
+ ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
+static int ati_remote2_reset_resume(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ r = ati_remote2_setup(ar2, ar2->channel_mask);
+ if (r)
+ goto out;
+
+ if (ar2->flags & ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ if (!r)
+ ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+ out:
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
+static int ati_remote2_pre_reset(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (ar2->flags == ATI_REMOTE2_OPENED)
+ ati_remote2_kill_urbs(ar2);
+
+ return 0;
+}
+
+static int ati_remote2_post_reset(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ if (ar2->flags == ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
+module_usb_driver(ati_remote2_driver);
diff --git a/kernel/drivers/input/misc/atlas_btns.c b/kernel/drivers/input/misc/atlas_btns.c
new file mode 100644
index 000000000..638165c78
--- /dev/null
+++ b/kernel/drivers/input/misc/atlas_btns.c
@@ -0,0 +1,158 @@
+/*
+ * atlas_btns.c - Atlas Wallmount Touchscreen ACPI Extras
+ *
+ * Copyright (C) 2006 Jaya Kumar
+ * Based on Toshiba ACPI by John Belmonte and ASUS ACPI
+ * This work was sponsored by CIS(M) Sdn Bhd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <asm/uaccess.h>
+
+#define ACPI_ATLAS_NAME "Atlas ACPI"
+#define ACPI_ATLAS_CLASS "Atlas"
+
+static unsigned short atlas_keymap[16];
+static struct input_dev *input_dev;
+
+/* button handling code */
+static acpi_status acpi_atlas_button_setup(acpi_handle region_handle,
+ u32 function, void *handler_context, void **return_context)
+{
+ *return_context =
+ (function != ACPI_REGION_DEACTIVATE) ? handler_context : NULL;
+
+ return AE_OK;
+}
+
+static acpi_status acpi_atlas_button_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width, u64 *value,
+ void *handler_context, void *region_context)
+{
+ acpi_status status;
+
+ if (function == ACPI_WRITE) {
+ int code = address & 0x0f;
+ int key_down = !(address & 0x10);
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, atlas_keymap[code], key_down);
+ input_sync(input_dev);
+
+ status = AE_OK;
+ } else {
+ pr_warn("shrugged on unexpected function: function=%x,address=%lx,value=%x\n",
+ function, (unsigned long)address, (u32)*value);
+ status = AE_BAD_PARAMETER;
+ }
+
+ return status;
+}
+
+static int atlas_acpi_button_add(struct acpi_device *device)
+{
+ acpi_status status;
+ int i;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ pr_err("unable to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_dev->name = "Atlas ACPI button driver";
+ input_dev->phys = "ASIM0000/atlas/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->keycode = atlas_keymap;
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = ARRAY_SIZE(atlas_keymap);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input_dev->evbit);
+ for (i = 0; i < ARRAY_SIZE(atlas_keymap); i++) {
+ if (i < 9) {
+ atlas_keymap[i] = KEY_F1 + i;
+ __set_bit(KEY_F1 + i, input_dev->keybit);
+ } else
+ atlas_keymap[i] = KEY_RESERVED;
+ }
+
+ err = input_register_device(input_dev);
+ if (err) {
+ pr_err("couldn't register input device\n");
+ input_free_device(input_dev);
+ return err;
+ }
+
+ /* hookup button handler */
+ status = acpi_install_address_space_handler(device->handle,
+ 0x81, &acpi_atlas_button_handler,
+ &acpi_atlas_button_setup, device);
+ if (ACPI_FAILURE(status)) {
+ pr_err("error installing addr spc handler\n");
+ input_unregister_device(input_dev);
+ err = -EINVAL;
+ }
+
+ return err;
+}
+
+static int atlas_acpi_button_remove(struct acpi_device *device)
+{
+ acpi_status status;
+
+ status = acpi_remove_address_space_handler(device->handle,
+ 0x81, &acpi_atlas_button_handler);
+ if (ACPI_FAILURE(status))
+ pr_err("error removing addr spc handler\n");
+
+ input_unregister_device(input_dev);
+
+ return 0;
+}
+
+static const struct acpi_device_id atlas_device_ids[] = {
+ {"ASIM0000", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, atlas_device_ids);
+
+static struct acpi_driver atlas_acpi_driver = {
+ .name = ACPI_ATLAS_NAME,
+ .class = ACPI_ATLAS_CLASS,
+ .owner = THIS_MODULE,
+ .ids = atlas_device_ids,
+ .ops = {
+ .add = atlas_acpi_button_add,
+ .remove = atlas_acpi_button_remove,
+ },
+};
+module_acpi_driver(atlas_acpi_driver);
+
+MODULE_AUTHOR("Jaya Kumar");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Atlas button driver");
+
diff --git a/kernel/drivers/input/misc/axp20x-pek.c b/kernel/drivers/input/misc/axp20x-pek.c
new file mode 100644
index 000000000..f1c844739
--- /dev/null
+++ b/kernel/drivers/input/misc/axp20x-pek.c
@@ -0,0 +1,290 @@
+/*
+ * axp20x power button driver.
+ *
+ * Copyright (C) 2013 Carlo Caione <carlo@caione.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/errno.h>
+#include <linux/irq.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/axp20x.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#define AXP20X_PEK_STARTUP_MASK (0xc0)
+#define AXP20X_PEK_SHUTDOWN_MASK (0x03)
+
+struct axp20x_pek {
+ struct axp20x_dev *axp20x;
+ struct input_dev *input;
+ int irq_dbr;
+ int irq_dbf;
+};
+
+struct axp20x_time {
+ unsigned int time;
+ unsigned int idx;
+};
+
+static const struct axp20x_time startup_time[] = {
+ { .time = 128, .idx = 0 },
+ { .time = 1000, .idx = 2 },
+ { .time = 3000, .idx = 1 },
+ { .time = 2000, .idx = 3 },
+};
+
+static const struct axp20x_time shutdown_time[] = {
+ { .time = 4000, .idx = 0 },
+ { .time = 6000, .idx = 1 },
+ { .time = 8000, .idx = 2 },
+ { .time = 10000, .idx = 3 },
+};
+
+struct axp20x_pek_ext_attr {
+ const struct axp20x_time *p_time;
+ unsigned int mask;
+};
+
+static struct axp20x_pek_ext_attr axp20x_pek_startup_ext_attr = {
+ .p_time = startup_time,
+ .mask = AXP20X_PEK_STARTUP_MASK,
+};
+
+static struct axp20x_pek_ext_attr axp20x_pek_shutdown_ext_attr = {
+ .p_time = shutdown_time,
+ .mask = AXP20X_PEK_SHUTDOWN_MASK,
+};
+
+static struct axp20x_pek_ext_attr *get_axp_ext_attr(struct device_attribute *attr)
+{
+ return container_of(attr, struct dev_ext_attribute, attr)->var;
+}
+
+static ssize_t axp20x_show_ext_attr(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev);
+ struct axp20x_pek_ext_attr *axp20x_ea = get_axp_ext_attr(attr);
+ unsigned int val;
+ int ret, i;
+
+ ret = regmap_read(axp20x_pek->axp20x->regmap, AXP20X_PEK_KEY, &val);
+ if (ret != 0)
+ return ret;
+
+ val &= axp20x_ea->mask;
+ val >>= ffs(axp20x_ea->mask) - 1;
+
+ for (i = 0; i < 4; i++)
+ if (val == axp20x_ea->p_time[i].idx)
+ val = axp20x_ea->p_time[i].time;
+
+ return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t axp20x_store_ext_attr(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev);
+ struct axp20x_pek_ext_attr *axp20x_ea = get_axp_ext_attr(attr);
+ char val_str[20];
+ size_t len;
+ int ret, i;
+ unsigned int val, idx = 0;
+ unsigned int best_err = UINT_MAX;
+
+ val_str[sizeof(val_str) - 1] = '\0';
+ strncpy(val_str, buf, sizeof(val_str) - 1);
+ len = strlen(val_str);
+
+ if (len && val_str[len - 1] == '\n')
+ val_str[len - 1] = '\0';
+
+ ret = kstrtouint(val_str, 10, &val);
+ if (ret)
+ return ret;
+
+ for (i = 3; i >= 0; i--) {
+ unsigned int err;
+
+ err = abs(axp20x_ea->p_time[i].time - val);
+ if (err < best_err) {
+ best_err = err;
+ idx = axp20x_ea->p_time[i].idx;
+ }
+
+ if (!err)
+ break;
+ }
+
+ idx <<= ffs(axp20x_ea->mask) - 1;
+ ret = regmap_update_bits(axp20x_pek->axp20x->regmap,
+ AXP20X_PEK_KEY,
+ axp20x_ea->mask, idx);
+ if (ret != 0)
+ return -EINVAL;
+
+ return count;
+}
+
+static struct dev_ext_attribute axp20x_dev_attr_startup = {
+ .attr = __ATTR(startup, 0644, axp20x_show_ext_attr, axp20x_store_ext_attr),
+ .var = &axp20x_pek_startup_ext_attr,
+};
+
+static struct dev_ext_attribute axp20x_dev_attr_shutdown = {
+ .attr = __ATTR(shutdown, 0644, axp20x_show_ext_attr, axp20x_store_ext_attr),
+ .var = &axp20x_pek_shutdown_ext_attr,
+};
+
+static struct attribute *axp20x_attributes[] = {
+ &axp20x_dev_attr_startup.attr.attr,
+ &axp20x_dev_attr_shutdown.attr.attr,
+ NULL,
+};
+
+static const struct attribute_group axp20x_attribute_group = {
+ .attrs = axp20x_attributes,
+};
+
+static irqreturn_t axp20x_pek_irq(int irq, void *pwr)
+{
+ struct input_dev *idev = pwr;
+ struct axp20x_pek *axp20x_pek = input_get_drvdata(idev);
+
+ if (irq == axp20x_pek->irq_dbr)
+ input_report_key(idev, KEY_POWER, true);
+ else if (irq == axp20x_pek->irq_dbf)
+ input_report_key(idev, KEY_POWER, false);
+
+ input_sync(idev);
+
+ return IRQ_HANDLED;
+}
+
+static void axp20x_remove_sysfs_group(void *_data)
+{
+ struct device *dev = _data;
+
+ sysfs_remove_group(&dev->kobj, &axp20x_attribute_group);
+}
+
+static int axp20x_pek_probe(struct platform_device *pdev)
+{
+ struct axp20x_pek *axp20x_pek;
+ struct axp20x_dev *axp20x;
+ struct input_dev *idev;
+ int error;
+
+ axp20x_pek = devm_kzalloc(&pdev->dev, sizeof(struct axp20x_pek),
+ GFP_KERNEL);
+ if (!axp20x_pek)
+ return -ENOMEM;
+
+ axp20x_pek->axp20x = dev_get_drvdata(pdev->dev.parent);
+ axp20x = axp20x_pek->axp20x;
+
+ axp20x_pek->irq_dbr = platform_get_irq_byname(pdev, "PEK_DBR");
+ if (axp20x_pek->irq_dbr < 0) {
+ dev_err(&pdev->dev, "No IRQ for PEK_DBR, error=%d\n",
+ axp20x_pek->irq_dbr);
+ return axp20x_pek->irq_dbr;
+ }
+ axp20x_pek->irq_dbr = regmap_irq_get_virq(axp20x->regmap_irqc,
+ axp20x_pek->irq_dbr);
+
+ axp20x_pek->irq_dbf = platform_get_irq_byname(pdev, "PEK_DBF");
+ if (axp20x_pek->irq_dbf < 0) {
+ dev_err(&pdev->dev, "No IRQ for PEK_DBF, error=%d\n",
+ axp20x_pek->irq_dbf);
+ return axp20x_pek->irq_dbf;
+ }
+ axp20x_pek->irq_dbf = regmap_irq_get_virq(axp20x->regmap_irqc,
+ axp20x_pek->irq_dbf);
+
+ axp20x_pek->input = devm_input_allocate_device(&pdev->dev);
+ if (!axp20x_pek->input)
+ return -ENOMEM;
+
+ idev = axp20x_pek->input;
+
+ idev->name = "axp20x-pek";
+ idev->phys = "m1kbd/input2";
+ idev->dev.parent = &pdev->dev;
+
+ input_set_capability(idev, EV_KEY, KEY_POWER);
+
+ input_set_drvdata(idev, axp20x_pek);
+
+ error = devm_request_any_context_irq(&pdev->dev, axp20x_pek->irq_dbr,
+ axp20x_pek_irq, 0,
+ "axp20x-pek-dbr", idev);
+ if (error < 0) {
+ dev_err(axp20x->dev, "Failed to request dbr IRQ#%d: %d\n",
+ axp20x_pek->irq_dbr, error);
+ return error;
+ }
+
+ error = devm_request_any_context_irq(&pdev->dev, axp20x_pek->irq_dbf,
+ axp20x_pek_irq, 0,
+ "axp20x-pek-dbf", idev);
+ if (error < 0) {
+ dev_err(axp20x->dev, "Failed to request dbf IRQ#%d: %d\n",
+ axp20x_pek->irq_dbf, error);
+ return error;
+ }
+
+ error = sysfs_create_group(&pdev->dev.kobj, &axp20x_attribute_group);
+ if (error) {
+ dev_err(axp20x->dev, "Failed to create sysfs attributes: %d\n",
+ error);
+ return error;
+ }
+
+ error = devm_add_action(&pdev->dev,
+ axp20x_remove_sysfs_group, &pdev->dev);
+ if (error) {
+ axp20x_remove_sysfs_group(&pdev->dev);
+ dev_err(&pdev->dev, "Failed to add sysfs cleanup action: %d\n",
+ error);
+ return error;
+ }
+
+ error = input_register_device(idev);
+ if (error) {
+ dev_err(axp20x->dev, "Can't register input device: %d\n",
+ error);
+ return error;
+ }
+
+ platform_set_drvdata(pdev, axp20x_pek);
+
+ return 0;
+}
+
+static struct platform_driver axp20x_pek_driver = {
+ .probe = axp20x_pek_probe,
+ .driver = {
+ .name = "axp20x-pek",
+ },
+};
+module_platform_driver(axp20x_pek_driver);
+
+MODULE_DESCRIPTION("axp20x Power Button");
+MODULE_AUTHOR("Carlo Caione <carlo@caione.org>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/bfin_rotary.c b/kernel/drivers/input/misc/bfin_rotary.c
new file mode 100644
index 000000000..a0fc18fdf
--- /dev/null
+++ b/kernel/drivers/input/misc/bfin_rotary.c
@@ -0,0 +1,295 @@
+/*
+ * Rotary counter driver for Analog Devices Blackfin Processors
+ *
+ * Copyright 2008-2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/platform_data/bfin_rotary.h>
+
+#include <asm/portmux.h>
+
+#define CNT_CONFIG_OFF 0 /* CNT Config Offset */
+#define CNT_IMASK_OFF 4 /* CNT Interrupt Mask Offset */
+#define CNT_STATUS_OFF 8 /* CNT Status Offset */
+#define CNT_COMMAND_OFF 12 /* CNT Command Offset */
+#define CNT_DEBOUNCE_OFF 16 /* CNT Debounce Offset */
+#define CNT_COUNTER_OFF 20 /* CNT Counter Offset */
+#define CNT_MAX_OFF 24 /* CNT Maximum Count Offset */
+#define CNT_MIN_OFF 28 /* CNT Minimum Count Offset */
+
+struct bfin_rot {
+ struct input_dev *input;
+ void __iomem *base;
+ int irq;
+ unsigned int up_key;
+ unsigned int down_key;
+ unsigned int button_key;
+ unsigned int rel_code;
+
+ unsigned short mode;
+ unsigned short debounce;
+
+ unsigned short cnt_config;
+ unsigned short cnt_imask;
+ unsigned short cnt_debounce;
+};
+
+static void report_key_event(struct input_dev *input, int keycode)
+{
+ /* simulate a press-n-release */
+ input_report_key(input, keycode, 1);
+ input_sync(input);
+ input_report_key(input, keycode, 0);
+ input_sync(input);
+}
+
+static void report_rotary_event(struct bfin_rot *rotary, int delta)
+{
+ struct input_dev *input = rotary->input;
+
+ if (rotary->up_key) {
+ report_key_event(input,
+ delta > 0 ? rotary->up_key : rotary->down_key);
+ } else {
+ input_report_rel(input, rotary->rel_code, delta);
+ input_sync(input);
+ }
+}
+
+static irqreturn_t bfin_rotary_isr(int irq, void *dev_id)
+{
+ struct bfin_rot *rotary = dev_id;
+ int delta;
+
+ switch (readw(rotary->base + CNT_STATUS_OFF)) {
+
+ case ICII:
+ break;
+
+ case UCII:
+ case DCII:
+ delta = readl(rotary->base + CNT_COUNTER_OFF);
+ if (delta)
+ report_rotary_event(rotary, delta);
+ break;
+
+ case CZMII:
+ report_key_event(rotary->input, rotary->button_key);
+ break;
+
+ default:
+ break;
+ }
+
+ writew(W1LCNT_ZERO, rotary->base + CNT_COMMAND_OFF); /* Clear COUNTER */
+ writew(-1, rotary->base + CNT_STATUS_OFF); /* Clear STATUS */
+
+ return IRQ_HANDLED;
+}
+
+static int bfin_rotary_open(struct input_dev *input)
+{
+ struct bfin_rot *rotary = input_get_drvdata(input);
+ unsigned short val;
+
+ if (rotary->mode & ROT_DEBE)
+ writew(rotary->debounce & DPRESCALE,
+ rotary->base + CNT_DEBOUNCE_OFF);
+
+ writew(rotary->mode & ~CNTE, rotary->base + CNT_CONFIG_OFF);
+
+ val = UCIE | DCIE;
+ if (rotary->button_key)
+ val |= CZMIE;
+ writew(val, rotary->base + CNT_IMASK_OFF);
+
+ writew(rotary->mode | CNTE, rotary->base + CNT_CONFIG_OFF);
+
+ return 0;
+}
+
+static void bfin_rotary_close(struct input_dev *input)
+{
+ struct bfin_rot *rotary = input_get_drvdata(input);
+
+ writew(0, rotary->base + CNT_CONFIG_OFF);
+ writew(0, rotary->base + CNT_IMASK_OFF);
+}
+
+static void bfin_rotary_free_action(void *data)
+{
+ peripheral_free_list(data);
+}
+
+static int bfin_rotary_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct bfin_rotary_platform_data *pdata = dev_get_platdata(dev);
+ struct bfin_rot *rotary;
+ struct resource *res;
+ struct input_dev *input;
+ int error;
+
+ /* Basic validation */
+ if ((pdata->rotary_up_key && !pdata->rotary_down_key) ||
+ (!pdata->rotary_up_key && pdata->rotary_down_key)) {
+ return -EINVAL;
+ }
+
+ if (pdata->pin_list) {
+ error = peripheral_request_list(pdata->pin_list,
+ dev_name(&pdev->dev));
+ if (error) {
+ dev_err(dev, "requesting peripherals failed: %d\n",
+ error);
+ return error;
+ }
+
+ error = devm_add_action(dev, bfin_rotary_free_action,
+ pdata->pin_list);
+ if (error) {
+ dev_err(dev, "setting cleanup action failed: %d\n",
+ error);
+ peripheral_free_list(pdata->pin_list);
+ return error;
+ }
+ }
+
+ rotary = devm_kzalloc(dev, sizeof(struct bfin_rot), GFP_KERNEL);
+ if (!rotary)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ rotary->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(rotary->base))
+ return PTR_ERR(rotary->base);
+
+ input = devm_input_allocate_device(dev);
+ if (!input)
+ return -ENOMEM;
+
+ rotary->input = input;
+
+ rotary->up_key = pdata->rotary_up_key;
+ rotary->down_key = pdata->rotary_down_key;
+ rotary->button_key = pdata->rotary_button_key;
+ rotary->rel_code = pdata->rotary_rel_code;
+
+ rotary->mode = pdata->mode;
+ rotary->debounce = pdata->debounce;
+
+ input->name = pdev->name;
+ input->phys = "bfin-rotary/input0";
+ input->dev.parent = &pdev->dev;
+
+ input_set_drvdata(input, rotary);
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ input->open = bfin_rotary_open;
+ input->close = bfin_rotary_close;
+
+ if (rotary->up_key) {
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(rotary->up_key, input->keybit);
+ __set_bit(rotary->down_key, input->keybit);
+ } else {
+ __set_bit(EV_REL, input->evbit);
+ __set_bit(rotary->rel_code, input->relbit);
+ }
+
+ if (rotary->button_key) {
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(rotary->button_key, input->keybit);
+ }
+
+ /* Quiesce the device before requesting irq */
+ bfin_rotary_close(input);
+
+ rotary->irq = platform_get_irq(pdev, 0);
+ if (rotary->irq < 0) {
+ dev_err(dev, "No rotary IRQ specified\n");
+ return -ENOENT;
+ }
+
+ error = devm_request_irq(dev, rotary->irq, bfin_rotary_isr,
+ 0, dev_name(dev), rotary);
+ if (error) {
+ dev_err(dev, "unable to claim irq %d; error %d\n",
+ rotary->irq, error);
+ return error;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(dev, "unable to register input device (%d)\n", error);
+ return error;
+ }
+
+ platform_set_drvdata(pdev, rotary);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+}
+
+static int __maybe_unused bfin_rotary_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct bfin_rot *rotary = platform_get_drvdata(pdev);
+
+ rotary->cnt_config = readw(rotary->base + CNT_CONFIG_OFF);
+ rotary->cnt_imask = readw(rotary->base + CNT_IMASK_OFF);
+ rotary->cnt_debounce = readw(rotary->base + CNT_DEBOUNCE_OFF);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(rotary->irq);
+
+ return 0;
+}
+
+static int __maybe_unused bfin_rotary_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct bfin_rot *rotary = platform_get_drvdata(pdev);
+
+ writew(rotary->cnt_debounce, rotary->base + CNT_DEBOUNCE_OFF);
+ writew(rotary->cnt_imask, rotary->base + CNT_IMASK_OFF);
+ writew(rotary->cnt_config & ~CNTE, rotary->base + CNT_CONFIG_OFF);
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(rotary->irq);
+
+ if (rotary->cnt_config & CNTE)
+ writew(rotary->cnt_config, rotary->base + CNT_CONFIG_OFF);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(bfin_rotary_pm_ops,
+ bfin_rotary_suspend, bfin_rotary_resume);
+
+static struct platform_driver bfin_rotary_device_driver = {
+ .probe = bfin_rotary_probe,
+ .driver = {
+ .name = "bfin-rotary",
+ .pm = &bfin_rotary_pm_ops,
+ },
+};
+module_platform_driver(bfin_rotary_device_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("Rotary Counter driver for Blackfin Processors");
+MODULE_ALIAS("platform:bfin-rotary");
diff --git a/kernel/drivers/input/misc/bma150.c b/kernel/drivers/input/misc/bma150.c
new file mode 100644
index 000000000..b36831c82
--- /dev/null
+++ b/kernel/drivers/input/misc/bma150.c
@@ -0,0 +1,671 @@
+/*
+ * Copyright (c) 2011 Bosch Sensortec GmbH
+ * Copyright (c) 2011 Unixphere
+ *
+ * This driver adds support for Bosch Sensortec's digital acceleration
+ * sensors BMA150 and SMB380.
+ * The SMB380 is fully compatible with BMA150 and only differs in packaging.
+ *
+ * The datasheet for the BMA150 chip can be found here:
+ * http://www.bosch-sensortec.com/content/language1/downloads/BST-BMA150-DS000-07.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/bma150.h>
+
+#define ABSMAX_ACC_VAL 0x01FF
+#define ABSMIN_ACC_VAL -(ABSMAX_ACC_VAL)
+
+/* Each axis is represented by a 2-byte data word */
+#define BMA150_XYZ_DATA_SIZE 6
+
+/* Input poll interval in milliseconds */
+#define BMA150_POLL_INTERVAL 10
+#define BMA150_POLL_MAX 200
+#define BMA150_POLL_MIN 0
+
+#define BMA150_MODE_NORMAL 0
+#define BMA150_MODE_SLEEP 2
+#define BMA150_MODE_WAKE_UP 3
+
+/* Data register addresses */
+#define BMA150_DATA_0_REG 0x00
+#define BMA150_DATA_1_REG 0x01
+#define BMA150_DATA_2_REG 0x02
+
+/* Control register addresses */
+#define BMA150_CTRL_0_REG 0x0A
+#define BMA150_CTRL_1_REG 0x0B
+#define BMA150_CTRL_2_REG 0x14
+#define BMA150_CTRL_3_REG 0x15
+
+/* Configuration/Setting register addresses */
+#define BMA150_CFG_0_REG 0x0C
+#define BMA150_CFG_1_REG 0x0D
+#define BMA150_CFG_2_REG 0x0E
+#define BMA150_CFG_3_REG 0x0F
+#define BMA150_CFG_4_REG 0x10
+#define BMA150_CFG_5_REG 0x11
+
+#define BMA150_CHIP_ID 2
+#define BMA180_CHIP_ID 3
+#define BMA150_CHIP_ID_REG BMA150_DATA_0_REG
+
+#define BMA150_ACC_X_LSB_REG BMA150_DATA_2_REG
+
+#define BMA150_SLEEP_POS 0
+#define BMA150_SLEEP_MSK 0x01
+#define BMA150_SLEEP_REG BMA150_CTRL_0_REG
+
+#define BMA150_BANDWIDTH_POS 0
+#define BMA150_BANDWIDTH_MSK 0x07
+#define BMA150_BANDWIDTH_REG BMA150_CTRL_2_REG
+
+#define BMA150_RANGE_POS 3
+#define BMA150_RANGE_MSK 0x18
+#define BMA150_RANGE_REG BMA150_CTRL_2_REG
+
+#define BMA150_WAKE_UP_POS 0
+#define BMA150_WAKE_UP_MSK 0x01
+#define BMA150_WAKE_UP_REG BMA150_CTRL_3_REG
+
+#define BMA150_SW_RES_POS 1
+#define BMA150_SW_RES_MSK 0x02
+#define BMA150_SW_RES_REG BMA150_CTRL_0_REG
+
+/* Any-motion interrupt register fields */
+#define BMA150_ANY_MOTION_EN_POS 6
+#define BMA150_ANY_MOTION_EN_MSK 0x40
+#define BMA150_ANY_MOTION_EN_REG BMA150_CTRL_1_REG
+
+#define BMA150_ANY_MOTION_DUR_POS 6
+#define BMA150_ANY_MOTION_DUR_MSK 0xC0
+#define BMA150_ANY_MOTION_DUR_REG BMA150_CFG_5_REG
+
+#define BMA150_ANY_MOTION_THRES_REG BMA150_CFG_4_REG
+
+/* Advanced interrupt register fields */
+#define BMA150_ADV_INT_EN_POS 6
+#define BMA150_ADV_INT_EN_MSK 0x40
+#define BMA150_ADV_INT_EN_REG BMA150_CTRL_3_REG
+
+/* High-G interrupt register fields */
+#define BMA150_HIGH_G_EN_POS 1
+#define BMA150_HIGH_G_EN_MSK 0x02
+#define BMA150_HIGH_G_EN_REG BMA150_CTRL_1_REG
+
+#define BMA150_HIGH_G_HYST_POS 3
+#define BMA150_HIGH_G_HYST_MSK 0x38
+#define BMA150_HIGH_G_HYST_REG BMA150_CFG_5_REG
+
+#define BMA150_HIGH_G_DUR_REG BMA150_CFG_3_REG
+#define BMA150_HIGH_G_THRES_REG BMA150_CFG_2_REG
+
+/* Low-G interrupt register fields */
+#define BMA150_LOW_G_EN_POS 0
+#define BMA150_LOW_G_EN_MSK 0x01
+#define BMA150_LOW_G_EN_REG BMA150_CTRL_1_REG
+
+#define BMA150_LOW_G_HYST_POS 0
+#define BMA150_LOW_G_HYST_MSK 0x07
+#define BMA150_LOW_G_HYST_REG BMA150_CFG_5_REG
+
+#define BMA150_LOW_G_DUR_REG BMA150_CFG_1_REG
+#define BMA150_LOW_G_THRES_REG BMA150_CFG_0_REG
+
+struct bma150_data {
+ struct i2c_client *client;
+ struct input_polled_dev *input_polled;
+ struct input_dev *input;
+ u8 mode;
+};
+
+/*
+ * The settings for the given range, bandwidth and interrupt features
+ * are stated and verified by Bosch Sensortec where they are configured
+ * to provide a generic sensitivity performance.
+ */
+static struct bma150_cfg default_cfg = {
+ .any_motion_int = 1,
+ .hg_int = 1,
+ .lg_int = 1,
+ .any_motion_dur = 0,
+ .any_motion_thres = 0,
+ .hg_hyst = 0,
+ .hg_dur = 150,
+ .hg_thres = 160,
+ .lg_hyst = 0,
+ .lg_dur = 150,
+ .lg_thres = 20,
+ .range = BMA150_RANGE_2G,
+ .bandwidth = BMA150_BW_50HZ
+};
+
+static int bma150_write_byte(struct i2c_client *client, u8 reg, u8 val)
+{
+ s32 ret;
+
+ /* As per specification, disable irq in between register writes */
+ if (client->irq)
+ disable_irq_nosync(client->irq);
+
+ ret = i2c_smbus_write_byte_data(client, reg, val);
+
+ if (client->irq)
+ enable_irq(client->irq);
+
+ return ret;
+}
+
+static int bma150_set_reg_bits(struct i2c_client *client,
+ int val, int shift, u8 mask, u8 reg)
+{
+ int data;
+
+ data = i2c_smbus_read_byte_data(client, reg);
+ if (data < 0)
+ return data;
+
+ data = (data & ~mask) | ((val << shift) & mask);
+ return bma150_write_byte(client, reg, data);
+}
+
+static int bma150_set_mode(struct bma150_data *bma150, u8 mode)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, mode, BMA150_WAKE_UP_POS,
+ BMA150_WAKE_UP_MSK, BMA150_WAKE_UP_REG);
+ if (error)
+ return error;
+
+ error = bma150_set_reg_bits(bma150->client, mode, BMA150_SLEEP_POS,
+ BMA150_SLEEP_MSK, BMA150_SLEEP_REG);
+ if (error)
+ return error;
+
+ if (mode == BMA150_MODE_NORMAL)
+ msleep(2);
+
+ bma150->mode = mode;
+ return 0;
+}
+
+static int bma150_soft_reset(struct bma150_data *bma150)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, 1, BMA150_SW_RES_POS,
+ BMA150_SW_RES_MSK, BMA150_SW_RES_REG);
+ if (error)
+ return error;
+
+ msleep(2);
+ return 0;
+}
+
+static int bma150_set_range(struct bma150_data *bma150, u8 range)
+{
+ return bma150_set_reg_bits(bma150->client, range, BMA150_RANGE_POS,
+ BMA150_RANGE_MSK, BMA150_RANGE_REG);
+}
+
+static int bma150_set_bandwidth(struct bma150_data *bma150, u8 bw)
+{
+ return bma150_set_reg_bits(bma150->client, bw, BMA150_BANDWIDTH_POS,
+ BMA150_BANDWIDTH_MSK, BMA150_BANDWIDTH_REG);
+}
+
+static int bma150_set_low_g_interrupt(struct bma150_data *bma150,
+ u8 enable, u8 hyst, u8 dur, u8 thres)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, hyst,
+ BMA150_LOW_G_HYST_POS, BMA150_LOW_G_HYST_MSK,
+ BMA150_LOW_G_HYST_REG);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client, BMA150_LOW_G_DUR_REG, dur);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client, BMA150_LOW_G_THRES_REG, thres);
+ if (error)
+ return error;
+
+ return bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_LOW_G_EN_POS, BMA150_LOW_G_EN_MSK,
+ BMA150_LOW_G_EN_REG);
+}
+
+static int bma150_set_high_g_interrupt(struct bma150_data *bma150,
+ u8 enable, u8 hyst, u8 dur, u8 thres)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, hyst,
+ BMA150_HIGH_G_HYST_POS, BMA150_HIGH_G_HYST_MSK,
+ BMA150_HIGH_G_HYST_REG);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client,
+ BMA150_HIGH_G_DUR_REG, dur);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client,
+ BMA150_HIGH_G_THRES_REG, thres);
+ if (error)
+ return error;
+
+ return bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_HIGH_G_EN_POS, BMA150_HIGH_G_EN_MSK,
+ BMA150_HIGH_G_EN_REG);
+}
+
+
+static int bma150_set_any_motion_interrupt(struct bma150_data *bma150,
+ u8 enable, u8 dur, u8 thres)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, dur,
+ BMA150_ANY_MOTION_DUR_POS,
+ BMA150_ANY_MOTION_DUR_MSK,
+ BMA150_ANY_MOTION_DUR_REG);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client,
+ BMA150_ANY_MOTION_THRES_REG, thres);
+ if (error)
+ return error;
+
+ error = bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_ADV_INT_EN_POS, BMA150_ADV_INT_EN_MSK,
+ BMA150_ADV_INT_EN_REG);
+ if (error)
+ return error;
+
+ return bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_ANY_MOTION_EN_POS,
+ BMA150_ANY_MOTION_EN_MSK,
+ BMA150_ANY_MOTION_EN_REG);
+}
+
+static void bma150_report_xyz(struct bma150_data *bma150)
+{
+ u8 data[BMA150_XYZ_DATA_SIZE];
+ s16 x, y, z;
+ s32 ret;
+
+ ret = i2c_smbus_read_i2c_block_data(bma150->client,
+ BMA150_ACC_X_LSB_REG, BMA150_XYZ_DATA_SIZE, data);
+ if (ret != BMA150_XYZ_DATA_SIZE)
+ return;
+
+ x = ((0xc0 & data[0]) >> 6) | (data[1] << 2);
+ y = ((0xc0 & data[2]) >> 6) | (data[3] << 2);
+ z = ((0xc0 & data[4]) >> 6) | (data[5] << 2);
+
+ /* sign extension */
+ x = (s16) (x << 6) >> 6;
+ y = (s16) (y << 6) >> 6;
+ z = (s16) (z << 6) >> 6;
+
+ input_report_abs(bma150->input, ABS_X, x);
+ input_report_abs(bma150->input, ABS_Y, y);
+ input_report_abs(bma150->input, ABS_Z, z);
+ input_sync(bma150->input);
+}
+
+static irqreturn_t bma150_irq_thread(int irq, void *dev)
+{
+ bma150_report_xyz(dev);
+
+ return IRQ_HANDLED;
+}
+
+static void bma150_poll(struct input_polled_dev *dev)
+{
+ bma150_report_xyz(dev->private);
+}
+
+static int bma150_open(struct bma150_data *bma150)
+{
+ int error;
+
+ error = pm_runtime_get_sync(&bma150->client->dev);
+ if (error < 0 && error != -ENOSYS)
+ return error;
+
+ /*
+ * See if runtime PM woke up the device. If runtime PM
+ * is disabled we need to do it ourselves.
+ */
+ if (bma150->mode != BMA150_MODE_NORMAL) {
+ error = bma150_set_mode(bma150, BMA150_MODE_NORMAL);
+ if (error)
+ return error;
+ }
+
+ return 0;
+}
+
+static void bma150_close(struct bma150_data *bma150)
+{
+ pm_runtime_put_sync(&bma150->client->dev);
+
+ if (bma150->mode != BMA150_MODE_SLEEP)
+ bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static int bma150_irq_open(struct input_dev *input)
+{
+ struct bma150_data *bma150 = input_get_drvdata(input);
+
+ return bma150_open(bma150);
+}
+
+static void bma150_irq_close(struct input_dev *input)
+{
+ struct bma150_data *bma150 = input_get_drvdata(input);
+
+ bma150_close(bma150);
+}
+
+static void bma150_poll_open(struct input_polled_dev *ipoll_dev)
+{
+ struct bma150_data *bma150 = ipoll_dev->private;
+
+ bma150_open(bma150);
+}
+
+static void bma150_poll_close(struct input_polled_dev *ipoll_dev)
+{
+ struct bma150_data *bma150 = ipoll_dev->private;
+
+ bma150_close(bma150);
+}
+
+static int bma150_initialize(struct bma150_data *bma150,
+ const struct bma150_cfg *cfg)
+{
+ int error;
+
+ error = bma150_soft_reset(bma150);
+ if (error)
+ return error;
+
+ error = bma150_set_bandwidth(bma150, cfg->bandwidth);
+ if (error)
+ return error;
+
+ error = bma150_set_range(bma150, cfg->range);
+ if (error)
+ return error;
+
+ if (bma150->client->irq) {
+ error = bma150_set_any_motion_interrupt(bma150,
+ cfg->any_motion_int,
+ cfg->any_motion_dur,
+ cfg->any_motion_thres);
+ if (error)
+ return error;
+
+ error = bma150_set_high_g_interrupt(bma150,
+ cfg->hg_int, cfg->hg_hyst,
+ cfg->hg_dur, cfg->hg_thres);
+ if (error)
+ return error;
+
+ error = bma150_set_low_g_interrupt(bma150,
+ cfg->lg_int, cfg->lg_hyst,
+ cfg->lg_dur, cfg->lg_thres);
+ if (error)
+ return error;
+ }
+
+ return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static void bma150_init_input_device(struct bma150_data *bma150,
+ struct input_dev *idev)
+{
+ idev->name = BMA150_DRIVER;
+ idev->phys = BMA150_DRIVER "/input0";
+ idev->id.bustype = BUS_I2C;
+ idev->dev.parent = &bma150->client->dev;
+
+ idev->evbit[0] = BIT_MASK(EV_ABS);
+ input_set_abs_params(idev, ABS_X, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+ input_set_abs_params(idev, ABS_Y, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+ input_set_abs_params(idev, ABS_Z, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+}
+
+static int bma150_register_input_device(struct bma150_data *bma150)
+{
+ struct input_dev *idev;
+ int error;
+
+ idev = input_allocate_device();
+ if (!idev)
+ return -ENOMEM;
+
+ bma150_init_input_device(bma150, idev);
+
+ idev->open = bma150_irq_open;
+ idev->close = bma150_irq_close;
+ input_set_drvdata(idev, bma150);
+
+ error = input_register_device(idev);
+ if (error) {
+ input_free_device(idev);
+ return error;
+ }
+
+ bma150->input = idev;
+ return 0;
+}
+
+static int bma150_register_polled_device(struct bma150_data *bma150)
+{
+ struct input_polled_dev *ipoll_dev;
+ int error;
+
+ ipoll_dev = input_allocate_polled_device();
+ if (!ipoll_dev)
+ return -ENOMEM;
+
+ ipoll_dev->private = bma150;
+ ipoll_dev->open = bma150_poll_open;
+ ipoll_dev->close = bma150_poll_close;
+ ipoll_dev->poll = bma150_poll;
+ ipoll_dev->poll_interval = BMA150_POLL_INTERVAL;
+ ipoll_dev->poll_interval_min = BMA150_POLL_MIN;
+ ipoll_dev->poll_interval_max = BMA150_POLL_MAX;
+
+ bma150_init_input_device(bma150, ipoll_dev->input);
+
+ error = input_register_polled_device(ipoll_dev);
+ if (error) {
+ input_free_polled_device(ipoll_dev);
+ return error;
+ }
+
+ bma150->input_polled = ipoll_dev;
+ bma150->input = ipoll_dev->input;
+
+ return 0;
+}
+
+static int bma150_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct bma150_platform_data *pdata =
+ dev_get_platdata(&client->dev);
+ const struct bma150_cfg *cfg;
+ struct bma150_data *bma150;
+ int chip_id;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "i2c_check_functionality error\n");
+ return -EIO;
+ }
+
+ chip_id = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG);
+ if (chip_id != BMA150_CHIP_ID && chip_id != BMA180_CHIP_ID) {
+ dev_err(&client->dev, "BMA150 chip id error: %d\n", chip_id);
+ return -EINVAL;
+ }
+
+ bma150 = kzalloc(sizeof(struct bma150_data), GFP_KERNEL);
+ if (!bma150)
+ return -ENOMEM;
+
+ bma150->client = client;
+
+ if (pdata) {
+ if (pdata->irq_gpio_cfg) {
+ error = pdata->irq_gpio_cfg();
+ if (error) {
+ dev_err(&client->dev,
+ "IRQ GPIO conf. error %d, error %d\n",
+ client->irq, error);
+ goto err_free_mem;
+ }
+ }
+ cfg = &pdata->cfg;
+ } else {
+ cfg = &default_cfg;
+ }
+
+ error = bma150_initialize(bma150, cfg);
+ if (error)
+ goto err_free_mem;
+
+ if (client->irq > 0) {
+ error = bma150_register_input_device(bma150);
+ if (error)
+ goto err_free_mem;
+
+ error = request_threaded_irq(client->irq,
+ NULL, bma150_irq_thread,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ BMA150_DRIVER, bma150);
+ if (error) {
+ dev_err(&client->dev,
+ "irq request failed %d, error %d\n",
+ client->irq, error);
+ input_unregister_device(bma150->input);
+ goto err_free_mem;
+ }
+ } else {
+ error = bma150_register_polled_device(bma150);
+ if (error)
+ goto err_free_mem;
+ }
+
+ i2c_set_clientdata(client, bma150);
+
+ pm_runtime_enable(&client->dev);
+
+ return 0;
+
+err_free_mem:
+ kfree(bma150);
+ return error;
+}
+
+static int bma150_remove(struct i2c_client *client)
+{
+ struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+ pm_runtime_disable(&client->dev);
+
+ if (client->irq > 0) {
+ free_irq(client->irq, bma150);
+ input_unregister_device(bma150->input);
+ } else {
+ input_unregister_polled_device(bma150->input_polled);
+ input_free_polled_device(bma150->input_polled);
+ }
+
+ kfree(bma150);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int bma150_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+ return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static int bma150_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+ return bma150_set_mode(bma150, BMA150_MODE_NORMAL);
+}
+#endif
+
+static UNIVERSAL_DEV_PM_OPS(bma150_pm, bma150_suspend, bma150_resume, NULL);
+
+static const struct i2c_device_id bma150_id[] = {
+ { "bma150", 0 },
+ { "bma180", 0 },
+ { "smb380", 0 },
+ { "bma023", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, bma150_id);
+
+static struct i2c_driver bma150_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = BMA150_DRIVER,
+ .pm = &bma150_pm,
+ },
+ .class = I2C_CLASS_HWMON,
+ .id_table = bma150_id,
+ .probe = bma150_probe,
+ .remove = bma150_remove,
+};
+
+module_i2c_driver(bma150_driver);
+
+MODULE_AUTHOR("Albert Zhang <xu.zhang@bosch-sensortec.com>");
+MODULE_DESCRIPTION("BMA150 driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/cm109.c b/kernel/drivers/input/misc/cm109.c
new file mode 100644
index 000000000..9365535ba
--- /dev/null
+++ b/kernel/drivers/input/misc/cm109.c
@@ -0,0 +1,924 @@
+/*
+ * Driver for the VoIP USB phones with CM109 chipsets.
+ *
+ * Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ */
+
+/*
+ * Tested devices:
+ * - Komunikate KIP1000
+ * - Genius G-talk
+ * - Allied-Telesis Corega USBPH01
+ * - ...
+ *
+ * This driver is based on the yealink.c driver
+ *
+ * Thanks to:
+ * - Authors of yealink.c
+ * - Thomas Reitmayr
+ * - Oliver Neukum for good review comments and code
+ * - Shaun Jackman <sjackman@gmail.com> for Genius G-talk keymap
+ * - Dmitry Torokhov for valuable input and review
+ *
+ * Todo:
+ * - Read/write EEPROM
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/rwsem.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_VERSION "20080805"
+#define DRIVER_AUTHOR "Alfred E. Heggestad"
+#define DRIVER_DESC "CM109 phone driver"
+
+static char *phone = "kip1000";
+module_param(phone, charp, S_IRUSR);
+MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01, atcom}");
+
+enum {
+ /* HID Registers */
+ HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */
+ HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */
+ HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */
+ HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */
+ HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */
+ HID_OR1 = 0x01, /* GPO - General Purpose Output */
+ HID_OR2 = 0x02, /* Set GPIO to input/output mode */
+ HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */
+
+ /* HID_IR0 */
+ RECORD_MUTE = 1 << 3,
+ PLAYBACK_MUTE = 1 << 2,
+ VOLUME_DOWN = 1 << 1,
+ VOLUME_UP = 1 << 0,
+
+ /* HID_OR0 */
+ /* bits 7-6
+ 0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer
+ and SPDIF
+ 1: HID_OR0-3 are used as generic HID registers
+ 2: Values written to HID_OR0-3 are also mapped to MCU_CTRL,
+ EEPROM_DATA0-1, EEPROM_CTRL (see Note)
+ 3: Reserved
+ */
+ HID_OR_GPO_BUZ_SPDIF = 0 << 6,
+ HID_OR_GENERIC_HID_REG = 1 << 6,
+ HID_OR_MAP_MCU_EEPROM = 2 << 6,
+
+ BUZZER_ON = 1 << 5,
+
+ /* up to 256 normal keys, up to 16 special keys */
+ KEYMAP_SIZE = 256 + 16,
+};
+
+/* CM109 protocol packet */
+struct cm109_ctl_packet {
+ u8 byte[4];
+} __attribute__ ((packed));
+
+enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) };
+
+/* CM109 device structure */
+struct cm109_dev {
+ struct input_dev *idev; /* input device */
+ struct usb_device *udev; /* usb device */
+ struct usb_interface *intf;
+
+ /* irq input channel */
+ struct cm109_ctl_packet *irq_data;
+ dma_addr_t irq_dma;
+ struct urb *urb_irq;
+
+ /* control output channel */
+ struct cm109_ctl_packet *ctl_data;
+ dma_addr_t ctl_dma;
+ struct usb_ctrlrequest *ctl_req;
+ struct urb *urb_ctl;
+ /*
+ * The 3 bitfields below are protected by ctl_submit_lock.
+ * They have to be separate since they are accessed from IRQ
+ * context.
+ */
+ unsigned irq_urb_pending:1; /* irq_urb is in flight */
+ unsigned ctl_urb_pending:1; /* ctl_urb is in flight */
+ unsigned buzzer_pending:1; /* need to issue buzz command */
+ spinlock_t ctl_submit_lock;
+
+ unsigned char buzzer_state; /* on/off */
+
+ /* flags */
+ unsigned open:1;
+ unsigned resetting:1;
+ unsigned shutdown:1;
+
+ /* This mutex protects writes to the above flags */
+ struct mutex pm_mutex;
+
+ unsigned short keymap[KEYMAP_SIZE];
+
+ char phys[64]; /* physical device path */
+ int key_code; /* last reported key */
+ int keybit; /* 0=new scan 1,2,4,8=scan columns */
+ u8 gpi; /* Cached value of GPI (high nibble) */
+};
+
+/******************************************************************************
+ * CM109 key interface
+ *****************************************************************************/
+
+static unsigned short special_keymap(int code)
+{
+ if (code > 0xff) {
+ switch (code - 0xff) {
+ case RECORD_MUTE: return KEY_MUTE;
+ case PLAYBACK_MUTE: return KEY_MUTE;
+ case VOLUME_DOWN: return KEY_VOLUMEDOWN;
+ case VOLUME_UP: return KEY_VOLUMEUP;
+ }
+ }
+ return KEY_RESERVED;
+}
+
+/* Map device buttons to internal key events.
+ *
+ * The "up" and "down" keys, are symbolised by arrows on the button.
+ * The "pickup" and "hangup" keys are symbolised by a green and red phone
+ * on the button.
+
+ Komunikate KIP1000 Keyboard Matrix
+
+ -> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10)
+ | | | |
+ <- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20)
+ | | | |
+ END - 7 -- 8 -- 9 --> GPI pin 6 (0x40)
+ | | | |
+ OK -- * -- 0 -- # --> GPI pin 7 (0x80)
+ | | | |
+
+ /|\ /|\ /|\ /|\
+ | | | |
+GPO
+pin: 3 2 1 0
+ 0x8 0x4 0x2 0x1
+
+ */
+static unsigned short keymap_kip1000(int scancode)
+{
+ switch (scancode) { /* phone key: */
+ case 0x82: return KEY_NUMERIC_0; /* 0 */
+ case 0x14: return KEY_NUMERIC_1; /* 1 */
+ case 0x12: return KEY_NUMERIC_2; /* 2 */
+ case 0x11: return KEY_NUMERIC_3; /* 3 */
+ case 0x24: return KEY_NUMERIC_4; /* 4 */
+ case 0x22: return KEY_NUMERIC_5; /* 5 */
+ case 0x21: return KEY_NUMERIC_6; /* 6 */
+ case 0x44: return KEY_NUMERIC_7; /* 7 */
+ case 0x42: return KEY_NUMERIC_8; /* 8 */
+ case 0x41: return KEY_NUMERIC_9; /* 9 */
+ case 0x81: return KEY_NUMERIC_POUND; /* # */
+ case 0x84: return KEY_NUMERIC_STAR; /* * */
+ case 0x88: return KEY_ENTER; /* pickup */
+ case 0x48: return KEY_ESC; /* hangup */
+ case 0x28: return KEY_LEFT; /* IN */
+ case 0x18: return KEY_RIGHT; /* OUT */
+ default: return special_keymap(scancode);
+ }
+}
+
+/*
+ Contributed by Shaun Jackman <sjackman@gmail.com>
+
+ Genius G-Talk keyboard matrix
+ 0 1 2 3
+ 4: 0 4 8 Talk
+ 5: 1 5 9 End
+ 6: 2 6 # Up
+ 7: 3 7 * Down
+*/
+static unsigned short keymap_gtalk(int scancode)
+{
+ switch (scancode) {
+ case 0x11: return KEY_NUMERIC_0;
+ case 0x21: return KEY_NUMERIC_1;
+ case 0x41: return KEY_NUMERIC_2;
+ case 0x81: return KEY_NUMERIC_3;
+ case 0x12: return KEY_NUMERIC_4;
+ case 0x22: return KEY_NUMERIC_5;
+ case 0x42: return KEY_NUMERIC_6;
+ case 0x82: return KEY_NUMERIC_7;
+ case 0x14: return KEY_NUMERIC_8;
+ case 0x24: return KEY_NUMERIC_9;
+ case 0x44: return KEY_NUMERIC_POUND; /* # */
+ case 0x84: return KEY_NUMERIC_STAR; /* * */
+ case 0x18: return KEY_ENTER; /* Talk (green handset) */
+ case 0x28: return KEY_ESC; /* End (red handset) */
+ case 0x48: return KEY_UP; /* Menu up (rocker switch) */
+ case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */
+ default: return special_keymap(scancode);
+ }
+}
+
+/*
+ * Keymap for Allied-Telesis Corega USBPH01
+ * http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html
+ *
+ * Contributed by july@nat.bg
+ */
+static unsigned short keymap_usbph01(int scancode)
+{
+ switch (scancode) {
+ case 0x11: return KEY_NUMERIC_0; /* 0 */
+ case 0x21: return KEY_NUMERIC_1; /* 1 */
+ case 0x41: return KEY_NUMERIC_2; /* 2 */
+ case 0x81: return KEY_NUMERIC_3; /* 3 */
+ case 0x12: return KEY_NUMERIC_4; /* 4 */
+ case 0x22: return KEY_NUMERIC_5; /* 5 */
+ case 0x42: return KEY_NUMERIC_6; /* 6 */
+ case 0x82: return KEY_NUMERIC_7; /* 7 */
+ case 0x14: return KEY_NUMERIC_8; /* 8 */
+ case 0x24: return KEY_NUMERIC_9; /* 9 */
+ case 0x44: return KEY_NUMERIC_POUND; /* # */
+ case 0x84: return KEY_NUMERIC_STAR; /* * */
+ case 0x18: return KEY_ENTER; /* pickup */
+ case 0x28: return KEY_ESC; /* hangup */
+ case 0x48: return KEY_LEFT; /* IN */
+ case 0x88: return KEY_RIGHT; /* OUT */
+ default: return special_keymap(scancode);
+ }
+}
+
+/*
+ * Keymap for ATCom AU-100
+ * http://www.atcom.cn/products.html
+ * http://www.packetizer.com/products/au100/
+ * http://www.voip-info.org/wiki/view/AU-100
+ *
+ * Contributed by daniel@gimpelevich.san-francisco.ca.us
+ */
+static unsigned short keymap_atcom(int scancode)
+{
+ switch (scancode) { /* phone key: */
+ case 0x82: return KEY_NUMERIC_0; /* 0 */
+ case 0x11: return KEY_NUMERIC_1; /* 1 */
+ case 0x12: return KEY_NUMERIC_2; /* 2 */
+ case 0x14: return KEY_NUMERIC_3; /* 3 */
+ case 0x21: return KEY_NUMERIC_4; /* 4 */
+ case 0x22: return KEY_NUMERIC_5; /* 5 */
+ case 0x24: return KEY_NUMERIC_6; /* 6 */
+ case 0x41: return KEY_NUMERIC_7; /* 7 */
+ case 0x42: return KEY_NUMERIC_8; /* 8 */
+ case 0x44: return KEY_NUMERIC_9; /* 9 */
+ case 0x84: return KEY_NUMERIC_POUND; /* # */
+ case 0x81: return KEY_NUMERIC_STAR; /* * */
+ case 0x18: return KEY_ENTER; /* pickup */
+ case 0x28: return KEY_ESC; /* hangup */
+ case 0x48: return KEY_LEFT; /* left arrow */
+ case 0x88: return KEY_RIGHT; /* right arrow */
+ default: return special_keymap(scancode);
+ }
+}
+
+static unsigned short (*keymap)(int) = keymap_kip1000;
+
+/*
+ * Completes a request by converting the data into events for the
+ * input subsystem.
+ */
+static void report_key(struct cm109_dev *dev, int key)
+{
+ struct input_dev *idev = dev->idev;
+
+ if (dev->key_code >= 0) {
+ /* old key up */
+ input_report_key(idev, dev->key_code, 0);
+ }
+
+ dev->key_code = key;
+ if (key >= 0) {
+ /* new valid key */
+ input_report_key(idev, key, 1);
+ }
+
+ input_sync(idev);
+}
+
+/******************************************************************************
+ * CM109 usb communication interface
+ *****************************************************************************/
+
+static void cm109_submit_buzz_toggle(struct cm109_dev *dev)
+{
+ int error;
+
+ if (dev->buzzer_state)
+ dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+ else
+ dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+ error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
+ if (error)
+ dev_err(&dev->intf->dev,
+ "%s: usb_submit_urb (urb_ctl) failed %d\n",
+ __func__, error);
+}
+
+/*
+ * IRQ handler
+ */
+static void cm109_urb_irq_callback(struct urb *urb)
+{
+ struct cm109_dev *dev = urb->context;
+ const int status = urb->status;
+ int error;
+
+ dev_dbg(&dev->intf->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n",
+ dev->irq_data->byte[0],
+ dev->irq_data->byte[1],
+ dev->irq_data->byte[2],
+ dev->irq_data->byte[3],
+ dev->keybit);
+
+ if (status) {
+ if (status == -ESHUTDOWN)
+ return;
+ dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n",
+ __func__, status);
+ goto out;
+ }
+
+ /* Special keys */
+ if (dev->irq_data->byte[HID_IR0] & 0x0f) {
+ const int code = (dev->irq_data->byte[HID_IR0] & 0x0f);
+ report_key(dev, dev->keymap[0xff + code]);
+ }
+
+ /* Scan key column */
+ if (dev->keybit == 0xf) {
+
+ /* Any changes ? */
+ if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0))
+ goto out;
+
+ dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0;
+ dev->keybit = 0x1;
+ } else {
+ report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]);
+
+ dev->keybit <<= 1;
+ if (dev->keybit > 0x8)
+ dev->keybit = 0xf;
+ }
+
+ out:
+
+ spin_lock(&dev->ctl_submit_lock);
+
+ dev->irq_urb_pending = 0;
+
+ if (likely(!dev->shutdown)) {
+
+ if (dev->buzzer_state)
+ dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+ else
+ dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+ dev->ctl_data->byte[HID_OR1] = dev->keybit;
+ dev->ctl_data->byte[HID_OR2] = dev->keybit;
+
+ dev->buzzer_pending = 0;
+ dev->ctl_urb_pending = 1;
+
+ error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
+ if (error)
+ dev_err(&dev->intf->dev,
+ "%s: usb_submit_urb (urb_ctl) failed %d\n",
+ __func__, error);
+ }
+
+ spin_unlock(&dev->ctl_submit_lock);
+}
+
+static void cm109_urb_ctl_callback(struct urb *urb)
+{
+ struct cm109_dev *dev = urb->context;
+ const int status = urb->status;
+ int error;
+
+ dev_dbg(&dev->intf->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n",
+ dev->ctl_data->byte[0],
+ dev->ctl_data->byte[1],
+ dev->ctl_data->byte[2],
+ dev->ctl_data->byte[3]);
+
+ if (status) {
+ if (status == -ESHUTDOWN)
+ return;
+ dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n",
+ __func__, status);
+ }
+
+ spin_lock(&dev->ctl_submit_lock);
+
+ dev->ctl_urb_pending = 0;
+
+ if (likely(!dev->shutdown)) {
+
+ if (dev->buzzer_pending || status) {
+ dev->buzzer_pending = 0;
+ dev->ctl_urb_pending = 1;
+ cm109_submit_buzz_toggle(dev);
+ } else if (likely(!dev->irq_urb_pending)) {
+ /* ask for key data */
+ dev->irq_urb_pending = 1;
+ error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC);
+ if (error)
+ dev_err(&dev->intf->dev,
+ "%s: usb_submit_urb (urb_irq) failed %d\n",
+ __func__, error);
+ }
+ }
+
+ spin_unlock(&dev->ctl_submit_lock);
+}
+
+static void cm109_toggle_buzzer_async(struct cm109_dev *dev)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->ctl_submit_lock, flags);
+
+ if (dev->ctl_urb_pending) {
+ /* URB completion will resubmit */
+ dev->buzzer_pending = 1;
+ } else {
+ dev->ctl_urb_pending = 1;
+ cm109_submit_buzz_toggle(dev);
+ }
+
+ spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
+}
+
+static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
+{
+ int error;
+
+ if (on)
+ dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+ else
+ dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+ error = usb_control_msg(dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ dev->ctl_req->bRequest,
+ dev->ctl_req->bRequestType,
+ le16_to_cpu(dev->ctl_req->wValue),
+ le16_to_cpu(dev->ctl_req->wIndex),
+ dev->ctl_data,
+ USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
+ if (error < 0 && error != -EINTR)
+ dev_err(&dev->intf->dev, "%s: usb_control_msg() failed %d\n",
+ __func__, error);
+}
+
+static void cm109_stop_traffic(struct cm109_dev *dev)
+{
+ dev->shutdown = 1;
+ /*
+ * Make sure other CPUs see this
+ */
+ smp_wmb();
+
+ usb_kill_urb(dev->urb_ctl);
+ usb_kill_urb(dev->urb_irq);
+
+ cm109_toggle_buzzer_sync(dev, 0);
+
+ dev->shutdown = 0;
+ smp_wmb();
+}
+
+static void cm109_restore_state(struct cm109_dev *dev)
+{
+ if (dev->open) {
+ /*
+ * Restore buzzer state.
+ * This will also kick regular URB submission
+ */
+ cm109_toggle_buzzer_async(dev);
+ }
+}
+
+/******************************************************************************
+ * input event interface
+ *****************************************************************************/
+
+static int cm109_input_open(struct input_dev *idev)
+{
+ struct cm109_dev *dev = input_get_drvdata(idev);
+ int error;
+
+ error = usb_autopm_get_interface(dev->intf);
+ if (error < 0) {
+ dev_err(&idev->dev, "%s - cannot autoresume, result %d\n",
+ __func__, error);
+ return error;
+ }
+
+ mutex_lock(&dev->pm_mutex);
+
+ dev->buzzer_state = 0;
+ dev->key_code = -1; /* no keys pressed */
+ dev->keybit = 0xf;
+
+ /* issue INIT */
+ dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF;
+ dev->ctl_data->byte[HID_OR1] = dev->keybit;
+ dev->ctl_data->byte[HID_OR2] = dev->keybit;
+ dev->ctl_data->byte[HID_OR3] = 0x00;
+
+ error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
+ if (error)
+ dev_err(&dev->intf->dev, "%s: usb_submit_urb (urb_ctl) failed %d\n",
+ __func__, error);
+ else
+ dev->open = 1;
+
+ mutex_unlock(&dev->pm_mutex);
+
+ if (error)
+ usb_autopm_put_interface(dev->intf);
+
+ return error;
+}
+
+static void cm109_input_close(struct input_dev *idev)
+{
+ struct cm109_dev *dev = input_get_drvdata(idev);
+
+ mutex_lock(&dev->pm_mutex);
+
+ /*
+ * Once we are here event delivery is stopped so we
+ * don't need to worry about someone starting buzzer
+ * again
+ */
+ cm109_stop_traffic(dev);
+ dev->open = 0;
+
+ mutex_unlock(&dev->pm_mutex);
+
+ usb_autopm_put_interface(dev->intf);
+}
+
+static int cm109_input_ev(struct input_dev *idev, unsigned int type,
+ unsigned int code, int value)
+{
+ struct cm109_dev *dev = input_get_drvdata(idev);
+
+ dev_dbg(&dev->intf->dev,
+ "input_ev: type=%u code=%u value=%d\n", type, code, value);
+
+ if (type != EV_SND)
+ return -EINVAL;
+
+ switch (code) {
+ case SND_TONE:
+ case SND_BELL:
+ dev->buzzer_state = !!value;
+ if (!dev->resetting)
+ cm109_toggle_buzzer_async(dev);
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+
+/******************************************************************************
+ * Linux interface and usb initialisation
+ *****************************************************************************/
+
+struct driver_info {
+ char *name;
+};
+
+static const struct driver_info info_cm109 = {
+ .name = "CM109 USB driver",
+};
+
+enum {
+ VENDOR_ID = 0x0d8c, /* C-Media Electronics */
+ PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */
+};
+
+/* table of devices that work with this driver */
+static const struct usb_device_id cm109_usb_table[] = {
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
+ USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = VENDOR_ID,
+ .idProduct = PRODUCT_ID_CM109,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 0,
+ .bInterfaceProtocol = 0,
+ .driver_info = (kernel_ulong_t) &info_cm109
+ },
+ /* you can add more devices here with product ID 0x0008 - 0x000f */
+ { }
+};
+
+static void cm109_usb_cleanup(struct cm109_dev *dev)
+{
+ kfree(dev->ctl_req);
+ if (dev->ctl_data)
+ usb_free_coherent(dev->udev, USB_PKT_LEN,
+ dev->ctl_data, dev->ctl_dma);
+ if (dev->irq_data)
+ usb_free_coherent(dev->udev, USB_PKT_LEN,
+ dev->irq_data, dev->irq_dma);
+
+ usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */
+ usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */
+ kfree(dev);
+}
+
+static void cm109_usb_disconnect(struct usb_interface *interface)
+{
+ struct cm109_dev *dev = usb_get_intfdata(interface);
+
+ usb_set_intfdata(interface, NULL);
+ input_unregister_device(dev->idev);
+ cm109_usb_cleanup(dev);
+}
+
+static int cm109_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct driver_info *nfo = (struct driver_info *)id->driver_info;
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *endpoint;
+ struct cm109_dev *dev;
+ struct input_dev *input_dev = NULL;
+ int ret, pipe, i;
+ int error = -ENOMEM;
+
+ interface = intf->cur_altsetting;
+ endpoint = &interface->endpoint[0].desc;
+
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -ENODEV;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ spin_lock_init(&dev->ctl_submit_lock);
+ mutex_init(&dev->pm_mutex);
+
+ dev->udev = udev;
+ dev->intf = intf;
+
+ dev->idev = input_dev = input_allocate_device();
+ if (!input_dev)
+ goto err_out;
+
+ /* allocate usb buffers */
+ dev->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_KERNEL, &dev->irq_dma);
+ if (!dev->irq_data)
+ goto err_out;
+
+ dev->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_KERNEL, &dev->ctl_dma);
+ if (!dev->ctl_data)
+ goto err_out;
+
+ dev->ctl_req = kmalloc(sizeof(*(dev->ctl_req)), GFP_KERNEL);
+ if (!dev->ctl_req)
+ goto err_out;
+
+ /* allocate urb structures */
+ dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->urb_irq)
+ goto err_out;
+
+ dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->urb_ctl)
+ goto err_out;
+
+ /* get a handle to the interrupt data pipe */
+ pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+ ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ if (ret != USB_PKT_LEN)
+ dev_err(&intf->dev, "invalid payload size %d, expected %d\n",
+ ret, USB_PKT_LEN);
+
+ /* initialise irq urb */
+ usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data,
+ USB_PKT_LEN,
+ cm109_urb_irq_callback, dev, endpoint->bInterval);
+ dev->urb_irq->transfer_dma = dev->irq_dma;
+ dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ dev->urb_irq->dev = udev;
+
+ /* initialise ctl urb */
+ dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+ USB_DIR_OUT;
+ dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
+ dev->ctl_req->wValue = cpu_to_le16(0x200);
+ dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
+ dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
+
+ usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
+ (void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN,
+ cm109_urb_ctl_callback, dev);
+ dev->urb_ctl->transfer_dma = dev->ctl_dma;
+ dev->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ dev->urb_ctl->dev = udev;
+
+ /* find out the physical bus location */
+ usb_make_path(udev, dev->phys, sizeof(dev->phys));
+ strlcat(dev->phys, "/input0", sizeof(dev->phys));
+
+ /* register settings for the input device */
+ input_dev->name = nfo->name;
+ input_dev->phys = dev->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, dev);
+ input_dev->open = cm109_input_open;
+ input_dev->close = cm109_input_close;
+ input_dev->event = cm109_input_ev;
+
+ input_dev->keycode = dev->keymap;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(dev->keymap);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+
+ /* register available key events */
+ for (i = 0; i < KEYMAP_SIZE; i++) {
+ unsigned short k = keymap(i);
+ dev->keymap[i] = k;
+ __set_bit(k, input_dev->keybit);
+ }
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ error = input_register_device(dev->idev);
+ if (error)
+ goto err_out;
+
+ usb_set_intfdata(intf, dev);
+
+ return 0;
+
+ err_out:
+ input_free_device(input_dev);
+ cm109_usb_cleanup(dev);
+ return error;
+}
+
+static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ dev_info(&intf->dev, "cm109: usb_suspend (event=%d)\n", message.event);
+
+ mutex_lock(&dev->pm_mutex);
+ cm109_stop_traffic(dev);
+ mutex_unlock(&dev->pm_mutex);
+
+ return 0;
+}
+
+static int cm109_usb_resume(struct usb_interface *intf)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ dev_info(&intf->dev, "cm109: usb_resume\n");
+
+ mutex_lock(&dev->pm_mutex);
+ cm109_restore_state(dev);
+ mutex_unlock(&dev->pm_mutex);
+
+ return 0;
+}
+
+static int cm109_usb_pre_reset(struct usb_interface *intf)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ mutex_lock(&dev->pm_mutex);
+
+ /*
+ * Make sure input events don't try to toggle buzzer
+ * while we are resetting
+ */
+ dev->resetting = 1;
+ smp_wmb();
+
+ cm109_stop_traffic(dev);
+
+ return 0;
+}
+
+static int cm109_usb_post_reset(struct usb_interface *intf)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ dev->resetting = 0;
+ smp_wmb();
+
+ cm109_restore_state(dev);
+
+ mutex_unlock(&dev->pm_mutex);
+
+ return 0;
+}
+
+static struct usb_driver cm109_driver = {
+ .name = "cm109",
+ .probe = cm109_usb_probe,
+ .disconnect = cm109_usb_disconnect,
+ .suspend = cm109_usb_suspend,
+ .resume = cm109_usb_resume,
+ .reset_resume = cm109_usb_resume,
+ .pre_reset = cm109_usb_pre_reset,
+ .post_reset = cm109_usb_post_reset,
+ .id_table = cm109_usb_table,
+ .supports_autosuspend = 1,
+};
+
+static int __init cm109_select_keymap(void)
+{
+ /* Load the phone keymap */
+ if (!strcasecmp(phone, "kip1000")) {
+ keymap = keymap_kip1000;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for Komunikate KIP1000 phone loaded\n");
+ } else if (!strcasecmp(phone, "gtalk")) {
+ keymap = keymap_gtalk;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for Genius G-talk phone loaded\n");
+ } else if (!strcasecmp(phone, "usbph01")) {
+ keymap = keymap_usbph01;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for Allied-Telesis Corega USBPH01 phone loaded\n");
+ } else if (!strcasecmp(phone, "atcom")) {
+ keymap = keymap_atcom;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for ATCom AU-100 phone loaded\n");
+ } else {
+ printk(KERN_ERR KBUILD_MODNAME ": "
+ "Unsupported phone: %s\n", phone);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int __init cm109_init(void)
+{
+ int err;
+
+ err = cm109_select_keymap();
+ if (err)
+ return err;
+
+ err = usb_register(&cm109_driver);
+ if (err)
+ return err;
+
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR "\n");
+
+ return 0;
+}
+
+static void __exit cm109_exit(void)
+{
+ usb_deregister(&cm109_driver);
+}
+
+module_init(cm109_init);
+module_exit(cm109_exit);
+
+MODULE_DEVICE_TABLE(usb, cm109_usb_table);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/cma3000_d0x.c b/kernel/drivers/input/misc/cma3000_d0x.c
new file mode 100644
index 000000000..c7d007482
--- /dev/null
+++ b/kernel/drivers/input/misc/cma3000_d0x.c
@@ -0,0 +1,399 @@
+/*
+ * VTI CMA3000_D0x Accelerometer driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ * Author: Hemanth V <hemanthv@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input/cma3000.h>
+#include <linux/module.h>
+
+#include "cma3000_d0x.h"
+
+#define CMA3000_WHOAMI 0x00
+#define CMA3000_REVID 0x01
+#define CMA3000_CTRL 0x02
+#define CMA3000_STATUS 0x03
+#define CMA3000_RSTR 0x04
+#define CMA3000_INTSTATUS 0x05
+#define CMA3000_DOUTX 0x06
+#define CMA3000_DOUTY 0x07
+#define CMA3000_DOUTZ 0x08
+#define CMA3000_MDTHR 0x09
+#define CMA3000_MDFFTMR 0x0A
+#define CMA3000_FFTHR 0x0B
+
+#define CMA3000_RANGE2G (1 << 7)
+#define CMA3000_RANGE8G (0 << 7)
+#define CMA3000_BUSI2C (0 << 4)
+#define CMA3000_MODEMASK (7 << 1)
+#define CMA3000_GRANGEMASK (1 << 7)
+
+#define CMA3000_STATUS_PERR 1
+#define CMA3000_INTSTATUS_FFDET (1 << 2)
+
+/* Settling time delay in ms */
+#define CMA3000_SETDELAY 30
+
+/* Delay for clearing interrupt in us */
+#define CMA3000_INTDELAY 44
+
+
+/*
+ * Bit weights in mg for bit 0, other bits need
+ * multiply factor 2^n. Eight bit is the sign bit.
+ */
+#define BIT_TO_2G 18
+#define BIT_TO_8G 71
+
+struct cma3000_accl_data {
+ const struct cma3000_bus_ops *bus_ops;
+ const struct cma3000_platform_data *pdata;
+
+ struct device *dev;
+ struct input_dev *input_dev;
+
+ int bit_to_mg;
+ int irq;
+
+ int g_range;
+ u8 mode;
+
+ struct mutex mutex;
+ bool opened;
+ bool suspended;
+};
+
+#define CMA3000_READ(data, reg, msg) \
+ (data->bus_ops->read(data->dev, reg, msg))
+#define CMA3000_SET(data, reg, val, msg) \
+ ((data)->bus_ops->write(data->dev, reg, val, msg))
+
+/*
+ * Conversion for each of the eight modes to g, depending
+ * on G range i.e 2G or 8G. Some modes always operate in
+ * 8G.
+ */
+
+static int mode_to_mg[8][2] = {
+ { 0, 0 },
+ { BIT_TO_8G, BIT_TO_2G },
+ { BIT_TO_8G, BIT_TO_2G },
+ { BIT_TO_8G, BIT_TO_8G },
+ { BIT_TO_8G, BIT_TO_8G },
+ { BIT_TO_8G, BIT_TO_2G },
+ { BIT_TO_8G, BIT_TO_2G },
+ { 0, 0},
+};
+
+static void decode_mg(struct cma3000_accl_data *data, int *datax,
+ int *datay, int *dataz)
+{
+ /* Data in 2's complement, convert to mg */
+ *datax = ((s8)*datax) * data->bit_to_mg;
+ *datay = ((s8)*datay) * data->bit_to_mg;
+ *dataz = ((s8)*dataz) * data->bit_to_mg;
+}
+
+static irqreturn_t cma3000_thread_irq(int irq, void *dev_id)
+{
+ struct cma3000_accl_data *data = dev_id;
+ int datax, datay, dataz, intr_status;
+ u8 ctrl, mode, range;
+
+ intr_status = CMA3000_READ(data, CMA3000_INTSTATUS, "interrupt status");
+ if (intr_status < 0)
+ return IRQ_NONE;
+
+ /* Check if free fall is detected, report immediately */
+ if (intr_status & CMA3000_INTSTATUS_FFDET) {
+ input_report_abs(data->input_dev, ABS_MISC, 1);
+ input_sync(data->input_dev);
+ } else {
+ input_report_abs(data->input_dev, ABS_MISC, 0);
+ }
+
+ datax = CMA3000_READ(data, CMA3000_DOUTX, "X");
+ datay = CMA3000_READ(data, CMA3000_DOUTY, "Y");
+ dataz = CMA3000_READ(data, CMA3000_DOUTZ, "Z");
+
+ ctrl = CMA3000_READ(data, CMA3000_CTRL, "ctrl");
+ mode = (ctrl & CMA3000_MODEMASK) >> 1;
+ range = (ctrl & CMA3000_GRANGEMASK) >> 7;
+
+ data->bit_to_mg = mode_to_mg[mode][range];
+
+ /* Interrupt not for this device */
+ if (data->bit_to_mg == 0)
+ return IRQ_NONE;
+
+ /* Decode register values to milli g */
+ decode_mg(data, &datax, &datay, &dataz);
+
+ input_report_abs(data->input_dev, ABS_X, datax);
+ input_report_abs(data->input_dev, ABS_Y, datay);
+ input_report_abs(data->input_dev, ABS_Z, dataz);
+ input_sync(data->input_dev);
+
+ return IRQ_HANDLED;
+}
+
+static int cma3000_reset(struct cma3000_accl_data *data)
+{
+ int val;
+
+ /* Reset sequence */
+ CMA3000_SET(data, CMA3000_RSTR, 0x02, "Reset");
+ CMA3000_SET(data, CMA3000_RSTR, 0x0A, "Reset");
+ CMA3000_SET(data, CMA3000_RSTR, 0x04, "Reset");
+
+ /* Settling time delay */
+ mdelay(10);
+
+ val = CMA3000_READ(data, CMA3000_STATUS, "Status");
+ if (val < 0) {
+ dev_err(data->dev, "Reset failed\n");
+ return val;
+ }
+
+ if (val & CMA3000_STATUS_PERR) {
+ dev_err(data->dev, "Parity Error\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int cma3000_poweron(struct cma3000_accl_data *data)
+{
+ const struct cma3000_platform_data *pdata = data->pdata;
+ u8 ctrl = 0;
+ int ret;
+
+ if (data->g_range == CMARANGE_2G) {
+ ctrl = (data->mode << 1) | CMA3000_RANGE2G;
+ } else if (data->g_range == CMARANGE_8G) {
+ ctrl = (data->mode << 1) | CMA3000_RANGE8G;
+ } else {
+ dev_info(data->dev,
+ "Invalid G range specified, assuming 8G\n");
+ ctrl = (data->mode << 1) | CMA3000_RANGE8G;
+ }
+
+ ctrl |= data->bus_ops->ctrl_mod;
+
+ CMA3000_SET(data, CMA3000_MDTHR, pdata->mdthr,
+ "Motion Detect Threshold");
+ CMA3000_SET(data, CMA3000_MDFFTMR, pdata->mdfftmr,
+ "Time register");
+ CMA3000_SET(data, CMA3000_FFTHR, pdata->ffthr,
+ "Free fall threshold");
+ ret = CMA3000_SET(data, CMA3000_CTRL, ctrl, "Mode setting");
+ if (ret < 0)
+ return -EIO;
+
+ msleep(CMA3000_SETDELAY);
+
+ return 0;
+}
+
+static int cma3000_poweroff(struct cma3000_accl_data *data)
+{
+ int ret;
+
+ ret = CMA3000_SET(data, CMA3000_CTRL, CMAMODE_POFF, "Mode setting");
+ msleep(CMA3000_SETDELAY);
+
+ return ret;
+}
+
+static int cma3000_open(struct input_dev *input_dev)
+{
+ struct cma3000_accl_data *data = input_get_drvdata(input_dev);
+
+ mutex_lock(&data->mutex);
+
+ if (!data->suspended)
+ cma3000_poweron(data);
+
+ data->opened = true;
+
+ mutex_unlock(&data->mutex);
+
+ return 0;
+}
+
+static void cma3000_close(struct input_dev *input_dev)
+{
+ struct cma3000_accl_data *data = input_get_drvdata(input_dev);
+
+ mutex_lock(&data->mutex);
+
+ if (!data->suspended)
+ cma3000_poweroff(data);
+
+ data->opened = false;
+
+ mutex_unlock(&data->mutex);
+}
+
+void cma3000_suspend(struct cma3000_accl_data *data)
+{
+ mutex_lock(&data->mutex);
+
+ if (!data->suspended && data->opened)
+ cma3000_poweroff(data);
+
+ data->suspended = true;
+
+ mutex_unlock(&data->mutex);
+}
+EXPORT_SYMBOL(cma3000_suspend);
+
+
+void cma3000_resume(struct cma3000_accl_data *data)
+{
+ mutex_lock(&data->mutex);
+
+ if (data->suspended && data->opened)
+ cma3000_poweron(data);
+
+ data->suspended = false;
+
+ mutex_unlock(&data->mutex);
+}
+EXPORT_SYMBOL(cma3000_resume);
+
+struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
+ const struct cma3000_bus_ops *bops)
+{
+ const struct cma3000_platform_data *pdata = dev_get_platdata(dev);
+ struct cma3000_accl_data *data;
+ struct input_dev *input_dev;
+ int rev;
+ int error;
+
+ if (!pdata) {
+ dev_err(dev, "platform data not found\n");
+ error = -EINVAL;
+ goto err_out;
+ }
+
+
+ /* if no IRQ return error */
+ if (irq == 0) {
+ error = -EINVAL;
+ goto err_out;
+ }
+
+ data = kzalloc(sizeof(struct cma3000_accl_data), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!data || !input_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ data->dev = dev;
+ data->input_dev = input_dev;
+ data->bus_ops = bops;
+ data->pdata = pdata;
+ data->irq = irq;
+ mutex_init(&data->mutex);
+
+ data->mode = pdata->mode;
+ if (data->mode > CMAMODE_POFF) {
+ data->mode = CMAMODE_MOTDET;
+ dev_warn(dev,
+ "Invalid mode specified, assuming Motion Detect\n");
+ }
+
+ data->g_range = pdata->g_range;
+ if (data->g_range != CMARANGE_2G && data->g_range != CMARANGE_8G) {
+ dev_info(dev,
+ "Invalid G range specified, assuming 8G\n");
+ data->g_range = CMARANGE_8G;
+ }
+
+ input_dev->name = "cma3000-accelerometer";
+ input_dev->id.bustype = bops->bustype;
+ input_dev->open = cma3000_open;
+ input_dev->close = cma3000_close;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ -data->g_range, data->g_range, pdata->fuzz_x, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ -data->g_range, data->g_range, pdata->fuzz_y, 0);
+ input_set_abs_params(input_dev, ABS_Z,
+ -data->g_range, data->g_range, pdata->fuzz_z, 0);
+ input_set_abs_params(input_dev, ABS_MISC, 0, 1, 0, 0);
+
+ input_set_drvdata(input_dev, data);
+
+ error = cma3000_reset(data);
+ if (error)
+ goto err_free_mem;
+
+ rev = CMA3000_READ(data, CMA3000_REVID, "Revid");
+ if (rev < 0) {
+ error = rev;
+ goto err_free_mem;
+ }
+
+ pr_info("CMA3000 Accelerometer: Revision %x\n", rev);
+
+ error = request_threaded_irq(irq, NULL, cma3000_thread_irq,
+ pdata->irqflags | IRQF_ONESHOT,
+ "cma3000_d0x", data);
+ if (error) {
+ dev_err(dev, "request_threaded_irq failed\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(data->input_dev);
+ if (error) {
+ dev_err(dev, "Unable to register input device\n");
+ goto err_free_irq;
+ }
+
+ return data;
+
+err_free_irq:
+ free_irq(irq, data);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(data);
+err_out:
+ return ERR_PTR(error);
+}
+EXPORT_SYMBOL(cma3000_init);
+
+void cma3000_exit(struct cma3000_accl_data *data)
+{
+ free_irq(data->irq, data);
+ input_unregister_device(data->input_dev);
+ kfree(data);
+}
+EXPORT_SYMBOL(cma3000_exit);
+
+MODULE_DESCRIPTION("CMA3000-D0x Accelerometer Driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Hemanth V <hemanthv@ti.com>");
diff --git a/kernel/drivers/input/misc/cma3000_d0x.h b/kernel/drivers/input/misc/cma3000_d0x.h
new file mode 100644
index 000000000..2304ce306
--- /dev/null
+++ b/kernel/drivers/input/misc/cma3000_d0x.h
@@ -0,0 +1,42 @@
+/*
+ * VTI CMA3000_D0x Accelerometer driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ * Author: Hemanth V <hemanthv@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _INPUT_CMA3000_H
+#define _INPUT_CMA3000_H
+
+#include <linux/types.h>
+#include <linux/input.h>
+
+struct device;
+struct cma3000_accl_data;
+
+struct cma3000_bus_ops {
+ u16 bustype;
+ u8 ctrl_mod;
+ int (*read)(struct device *, u8, char *);
+ int (*write)(struct device *, u8, u8, char *);
+};
+
+struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
+ const struct cma3000_bus_ops *bops);
+void cma3000_exit(struct cma3000_accl_data *);
+void cma3000_suspend(struct cma3000_accl_data *);
+void cma3000_resume(struct cma3000_accl_data *);
+
+#endif
diff --git a/kernel/drivers/input/misc/cma3000_d0x_i2c.c b/kernel/drivers/input/misc/cma3000_d0x_i2c.c
new file mode 100644
index 000000000..4fdef98ce
--- /dev/null
+++ b/kernel/drivers/input/misc/cma3000_d0x_i2c.c
@@ -0,0 +1,132 @@
+/*
+ * Implements I2C interface for VTI CMA300_D0x Accelerometer driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ * Author: Hemanth V <hemanthv@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/input/cma3000.h>
+#include "cma3000_d0x.h"
+
+static int cma3000_i2c_set(struct device *dev,
+ u8 reg, u8 val, char *msg)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, reg, val);
+ if (ret < 0)
+ dev_err(&client->dev,
+ "%s failed (%s, %d)\n", __func__, msg, ret);
+ return ret;
+}
+
+static int cma3000_i2c_read(struct device *dev, u8 reg, char *msg)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(client, reg);
+ if (ret < 0)
+ dev_err(&client->dev,
+ "%s failed (%s, %d)\n", __func__, msg, ret);
+ return ret;
+}
+
+static const struct cma3000_bus_ops cma3000_i2c_bops = {
+ .bustype = BUS_I2C,
+#define CMA3000_BUSI2C (0 << 4)
+ .ctrl_mod = CMA3000_BUSI2C,
+ .read = cma3000_i2c_read,
+ .write = cma3000_i2c_set,
+};
+
+static int cma3000_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct cma3000_accl_data *data;
+
+ data = cma3000_init(&client->dev, client->irq, &cma3000_i2c_bops);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ i2c_set_clientdata(client, data);
+
+ return 0;
+}
+
+static int cma3000_i2c_remove(struct i2c_client *client)
+{
+ struct cma3000_accl_data *data = i2c_get_clientdata(client);
+
+ cma3000_exit(data);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int cma3000_i2c_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct cma3000_accl_data *data = i2c_get_clientdata(client);
+
+ cma3000_suspend(data);
+
+ return 0;
+}
+
+static int cma3000_i2c_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct cma3000_accl_data *data = i2c_get_clientdata(client);
+
+ cma3000_resume(data);
+
+ return 0;
+}
+
+static const struct dev_pm_ops cma3000_i2c_pm_ops = {
+ .suspend = cma3000_i2c_suspend,
+ .resume = cma3000_i2c_resume,
+};
+#endif
+
+static const struct i2c_device_id cma3000_i2c_id[] = {
+ { "cma3000_d01", 0 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, cma3000_i2c_id);
+
+static struct i2c_driver cma3000_i2c_driver = {
+ .probe = cma3000_i2c_probe,
+ .remove = cma3000_i2c_remove,
+ .id_table = cma3000_i2c_id,
+ .driver = {
+ .name = "cma3000_i2c_accl",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &cma3000_i2c_pm_ops,
+#endif
+ },
+};
+
+module_i2c_driver(cma3000_i2c_driver);
+
+MODULE_DESCRIPTION("CMA3000-D0x Accelerometer I2C Driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Hemanth V <hemanthv@ti.com>");
diff --git a/kernel/drivers/input/misc/cobalt_btns.c b/kernel/drivers/input/misc/cobalt_btns.c
new file mode 100644
index 000000000..fbe72afc9
--- /dev/null
+++ b/kernel/drivers/input/misc/cobalt_btns.c
@@ -0,0 +1,162 @@
+/*
+ * Cobalt button interface driver.
+ *
+ * Copyright (C) 2007-2008 Yoichi Yuasa <yuasa@linux-mips.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#define BUTTONS_POLL_INTERVAL 30 /* msec */
+#define BUTTONS_COUNT_THRESHOLD 3
+#define BUTTONS_STATUS_MASK 0xfe000000
+
+static const unsigned short cobalt_map[] = {
+ KEY_RESERVED,
+ KEY_RESTART,
+ KEY_LEFT,
+ KEY_UP,
+ KEY_DOWN,
+ KEY_RIGHT,
+ KEY_ENTER,
+ KEY_SELECT
+};
+
+struct buttons_dev {
+ struct input_polled_dev *poll_dev;
+ unsigned short keymap[ARRAY_SIZE(cobalt_map)];
+ int count[ARRAY_SIZE(cobalt_map)];
+ void __iomem *reg;
+};
+
+static void handle_buttons(struct input_polled_dev *dev)
+{
+ struct buttons_dev *bdev = dev->private;
+ struct input_dev *input = dev->input;
+ uint32_t status;
+ int i;
+
+ status = ~readl(bdev->reg) >> 24;
+
+ for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
+ if (status & (1U << i)) {
+ if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 1);
+ input_sync(input);
+ }
+ } else {
+ if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 0);
+ input_sync(input);
+ }
+ bdev->count[i] = 0;
+ }
+ }
+}
+
+static int cobalt_buttons_probe(struct platform_device *pdev)
+{
+ struct buttons_dev *bdev;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ struct resource *res;
+ int error, i;
+
+ bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL);
+ poll_dev = input_allocate_polled_device();
+ if (!bdev || !poll_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ memcpy(bdev->keymap, cobalt_map, sizeof(bdev->keymap));
+
+ poll_dev->private = bdev;
+ poll_dev->poll = handle_buttons;
+ poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
+
+ input = poll_dev->input;
+ input->name = "Cobalt buttons";
+ input->phys = "cobalt/input0";
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = &pdev->dev;
+
+ input->keycode = bdev->keymap;
+ input->keycodemax = ARRAY_SIZE(bdev->keymap);
+ input->keycodesize = sizeof(unsigned short);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < ARRAY_SIZE(cobalt_map); i++)
+ __set_bit(bdev->keymap[i], input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ bdev->poll_dev = poll_dev;
+ bdev->reg = ioremap(res->start, resource_size(res));
+ dev_set_drvdata(&pdev->dev, bdev);
+
+ error = input_register_polled_device(poll_dev);
+ if (error)
+ goto err_iounmap;
+
+ return 0;
+
+ err_iounmap:
+ iounmap(bdev->reg);
+ err_free_mem:
+ input_free_polled_device(poll_dev);
+ kfree(bdev);
+ return error;
+}
+
+static int cobalt_buttons_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct buttons_dev *bdev = dev_get_drvdata(dev);
+
+ input_unregister_polled_device(bdev->poll_dev);
+ input_free_polled_device(bdev->poll_dev);
+ iounmap(bdev->reg);
+ kfree(bdev);
+
+ return 0;
+}
+
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
+MODULE_DESCRIPTION("Cobalt button interface driver");
+MODULE_LICENSE("GPL");
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:Cobalt buttons");
+
+static struct platform_driver cobalt_buttons_driver = {
+ .probe = cobalt_buttons_probe,
+ .remove = cobalt_buttons_remove,
+ .driver = {
+ .name = "Cobalt buttons",
+ },
+};
+module_platform_driver(cobalt_buttons_driver);
diff --git a/kernel/drivers/input/misc/da9052_onkey.c b/kernel/drivers/input/misc/da9052_onkey.c
new file mode 100644
index 000000000..266e07fdc
--- /dev/null
+++ b/kernel/drivers/input/misc/da9052_onkey.c
@@ -0,0 +1,159 @@
+/*
+ * ON pin driver for Dialog DA9052 PMICs
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+
+#include <linux/mfd/da9052/da9052.h>
+#include <linux/mfd/da9052/reg.h>
+
+struct da9052_onkey {
+ struct da9052 *da9052;
+ struct input_dev *input;
+ struct delayed_work work;
+};
+
+static void da9052_onkey_query(struct da9052_onkey *onkey)
+{
+ int ret;
+
+ ret = da9052_reg_read(onkey->da9052, DA9052_STATUS_A_REG);
+ if (ret < 0) {
+ dev_err(onkey->da9052->dev,
+ "Failed to read onkey event err=%d\n", ret);
+ } else {
+ /*
+ * Since interrupt for deassertion of ONKEY pin is not
+ * generated, onkey event state determines the onkey
+ * button state.
+ */
+ bool pressed = !(ret & DA9052_STATUSA_NONKEY);
+
+ input_report_key(onkey->input, KEY_POWER, pressed);
+ input_sync(onkey->input);
+
+ /*
+ * Interrupt is generated only when the ONKEY pin
+ * is asserted. Hence the deassertion of the pin
+ * is simulated through work queue.
+ */
+ if (pressed)
+ schedule_delayed_work(&onkey->work,
+ msecs_to_jiffies(50));
+ }
+}
+
+static void da9052_onkey_work(struct work_struct *work)
+{
+ struct da9052_onkey *onkey = container_of(work, struct da9052_onkey,
+ work.work);
+
+ da9052_onkey_query(onkey);
+}
+
+static irqreturn_t da9052_onkey_irq(int irq, void *data)
+{
+ struct da9052_onkey *onkey = data;
+
+ da9052_onkey_query(onkey);
+
+ return IRQ_HANDLED;
+}
+
+static int da9052_onkey_probe(struct platform_device *pdev)
+{
+ struct da9052 *da9052 = dev_get_drvdata(pdev->dev.parent);
+ struct da9052_onkey *onkey;
+ struct input_dev *input_dev;
+ int error;
+
+ if (!da9052) {
+ dev_err(&pdev->dev, "Failed to get the driver's data\n");
+ return -EINVAL;
+ }
+
+ onkey = kzalloc(sizeof(*onkey), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!onkey || !input_dev) {
+ dev_err(&pdev->dev, "Failed to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ onkey->input = input_dev;
+ onkey->da9052 = da9052;
+ INIT_DELAYED_WORK(&onkey->work, da9052_onkey_work);
+
+ input_dev->name = "da9052-onkey";
+ input_dev->phys = "da9052-onkey/input0";
+ input_dev->dev.parent = &pdev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ __set_bit(KEY_POWER, input_dev->keybit);
+
+ error = da9052_request_irq(onkey->da9052, DA9052_IRQ_NONKEY, "ONKEY",
+ da9052_onkey_irq, onkey);
+ if (error < 0) {
+ dev_err(onkey->da9052->dev,
+ "Failed to register ONKEY IRQ: %d\n", error);
+ goto err_free_mem;
+ }
+
+ error = input_register_device(onkey->input);
+ if (error) {
+ dev_err(&pdev->dev, "Unable to register input device, %d\n",
+ error);
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(pdev, onkey);
+ return 0;
+
+err_free_irq:
+ da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
+ cancel_delayed_work_sync(&onkey->work);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(onkey);
+
+ return error;
+}
+
+static int da9052_onkey_remove(struct platform_device *pdev)
+{
+ struct da9052_onkey *onkey = platform_get_drvdata(pdev);
+
+ da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
+ cancel_delayed_work_sync(&onkey->work);
+
+ input_unregister_device(onkey->input);
+ kfree(onkey);
+
+ return 0;
+}
+
+static struct platform_driver da9052_onkey_driver = {
+ .probe = da9052_onkey_probe,
+ .remove = da9052_onkey_remove,
+ .driver = {
+ .name = "da9052-onkey",
+ },
+};
+module_platform_driver(da9052_onkey_driver);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("Onkey driver for DA9052");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-onkey");
diff --git a/kernel/drivers/input/misc/da9055_onkey.c b/kernel/drivers/input/misc/da9055_onkey.c
new file mode 100644
index 000000000..3251a9693
--- /dev/null
+++ b/kernel/drivers/input/misc/da9055_onkey.c
@@ -0,0 +1,168 @@
+/*
+ * ON pin driver for Dialog DA9055 PMICs
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <linux/mfd/da9055/core.h>
+#include <linux/mfd/da9055/reg.h>
+
+struct da9055_onkey {
+ struct da9055 *da9055;
+ struct input_dev *input;
+ struct delayed_work work;
+};
+
+static void da9055_onkey_query(struct da9055_onkey *onkey)
+{
+ int key_stat;
+
+ key_stat = da9055_reg_read(onkey->da9055, DA9055_REG_STATUS_A);
+ if (key_stat < 0) {
+ dev_err(onkey->da9055->dev,
+ "Failed to read onkey event %d\n", key_stat);
+ } else {
+ key_stat &= DA9055_NOKEY_STS;
+ /*
+ * Onkey status bit is cleared when onkey button is released.
+ */
+ if (!key_stat) {
+ input_report_key(onkey->input, KEY_POWER, 0);
+ input_sync(onkey->input);
+ }
+ }
+
+ /*
+ * Interrupt is generated only when the ONKEY pin is asserted.
+ * Hence the deassertion of the pin is simulated through work queue.
+ */
+ if (key_stat)
+ schedule_delayed_work(&onkey->work, msecs_to_jiffies(10));
+
+}
+
+static void da9055_onkey_work(struct work_struct *work)
+{
+ struct da9055_onkey *onkey = container_of(work, struct da9055_onkey,
+ work.work);
+
+ da9055_onkey_query(onkey);
+}
+
+static irqreturn_t da9055_onkey_irq(int irq, void *data)
+{
+ struct da9055_onkey *onkey = data;
+
+ input_report_key(onkey->input, KEY_POWER, 1);
+ input_sync(onkey->input);
+
+ da9055_onkey_query(onkey);
+
+ return IRQ_HANDLED;
+}
+
+static int da9055_onkey_probe(struct platform_device *pdev)
+{
+ struct da9055 *da9055 = dev_get_drvdata(pdev->dev.parent);
+ struct da9055_onkey *onkey;
+ struct input_dev *input_dev;
+ int irq, err;
+
+ irq = platform_get_irq_byname(pdev, "ONKEY");
+ if (irq < 0) {
+ dev_err(&pdev->dev,
+ "Failed to get an IRQ for input device, %d\n", irq);
+ return -EINVAL;
+ }
+
+ onkey = devm_kzalloc(&pdev->dev, sizeof(*onkey), GFP_KERNEL);
+ if (!onkey) {
+ dev_err(&pdev->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&pdev->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ onkey->input = input_dev;
+ onkey->da9055 = da9055;
+ input_dev->name = "da9055-onkey";
+ input_dev->phys = "da9055-onkey/input0";
+ input_dev->dev.parent = &pdev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ __set_bit(KEY_POWER, input_dev->keybit);
+
+ INIT_DELAYED_WORK(&onkey->work, da9055_onkey_work);
+
+ err = request_threaded_irq(irq, NULL, da9055_onkey_irq,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ "ONKEY", onkey);
+ if (err < 0) {
+ dev_err(&pdev->dev,
+ "Failed to register ONKEY IRQ %d, error = %d\n",
+ irq, err);
+ goto err_free_input;
+ }
+
+ err = input_register_device(input_dev);
+ if (err) {
+ dev_err(&pdev->dev, "Unable to register input device, %d\n",
+ err);
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(pdev, onkey);
+
+ return 0;
+
+err_free_irq:
+ free_irq(irq, onkey);
+ cancel_delayed_work_sync(&onkey->work);
+err_free_input:
+ input_free_device(input_dev);
+
+ return err;
+}
+
+static int da9055_onkey_remove(struct platform_device *pdev)
+{
+ struct da9055_onkey *onkey = platform_get_drvdata(pdev);
+ int irq = platform_get_irq_byname(pdev, "ONKEY");
+
+ irq = regmap_irq_get_virq(onkey->da9055->irq_data, irq);
+ free_irq(irq, onkey);
+ cancel_delayed_work_sync(&onkey->work);
+ input_unregister_device(onkey->input);
+
+ return 0;
+}
+
+static struct platform_driver da9055_onkey_driver = {
+ .probe = da9055_onkey_probe,
+ .remove = da9055_onkey_remove,
+ .driver = {
+ .name = "da9055-onkey",
+ },
+};
+
+module_platform_driver(da9055_onkey_driver);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("Onkey driver for DA9055");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9055-onkey");
diff --git a/kernel/drivers/input/misc/dm355evm_keys.c b/kernel/drivers/input/misc/dm355evm_keys.c
new file mode 100644
index 000000000..b6b7bd4e5
--- /dev/null
+++ b/kernel/drivers/input/misc/dm355evm_keys.c
@@ -0,0 +1,271 @@
+/*
+ * dm355evm_keys.c - support buttons and IR remote on DM355 EVM board
+ *
+ * Copyright (c) 2008 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+
+#include <linux/i2c/dm355evm_msp.h>
+#include <linux/module.h>
+
+
+/*
+ * The MSP430 firmware on the DM355 EVM monitors on-board pushbuttons
+ * and an IR receptor used for the remote control. When any key is
+ * pressed, or its autorepeat kicks in, an event is sent. This driver
+ * read those events from the small (32 event) queue and reports them.
+ *
+ * Note that physically there can only be one of these devices.
+ *
+ * This driver was tested with firmware revision A4.
+ */
+struct dm355evm_keys {
+ struct input_dev *input;
+ struct device *dev;
+ int irq;
+};
+
+/* These initial keycodes can be remapped */
+static const struct key_entry dm355evm_keys[] = {
+ /*
+ * Pushbuttons on the EVM board ... note that the labels for these
+ * are SW10/SW11/etc on the PC board. The left/right orientation
+ * comes only from the firmware's documentation, and presumes the
+ * power connector is immediately in front of you and the IR sensor
+ * is to the right. (That is, rotate the board counter-clockwise
+ * by 90 degrees from the SW10/etc and "DM355 EVM" labels.)
+ */
+ { KE_KEY, 0x00d8, { KEY_OK } }, /* SW12 */
+ { KE_KEY, 0x00b8, { KEY_UP } }, /* SW13 */
+ { KE_KEY, 0x00e8, { KEY_DOWN } }, /* SW11 */
+ { KE_KEY, 0x0078, { KEY_LEFT } }, /* SW14 */
+ { KE_KEY, 0x00f0, { KEY_RIGHT } }, /* SW10 */
+
+ /*
+ * IR buttons ... codes assigned to match the universal remote
+ * provided with the EVM (Philips PM4S) using DVD code 0020.
+ *
+ * These event codes match firmware documentation, but other
+ * remote controls could easily send more RC5-encoded events.
+ * The PM4S manual was used in several cases to help select
+ * a keycode reflecting the intended usage.
+ *
+ * RC5 codes are 14 bits, with two start bits (0x3 prefix)
+ * and a toggle bit (masked out below).
+ */
+ { KE_KEY, 0x300c, { KEY_POWER } }, /* NOTE: docs omit this */
+ { KE_KEY, 0x3000, { KEY_NUMERIC_0 } },
+ { KE_KEY, 0x3001, { KEY_NUMERIC_1 } },
+ { KE_KEY, 0x3002, { KEY_NUMERIC_2 } },
+ { KE_KEY, 0x3003, { KEY_NUMERIC_3 } },
+ { KE_KEY, 0x3004, { KEY_NUMERIC_4 } },
+ { KE_KEY, 0x3005, { KEY_NUMERIC_5 } },
+ { KE_KEY, 0x3006, { KEY_NUMERIC_6 } },
+ { KE_KEY, 0x3007, { KEY_NUMERIC_7 } },
+ { KE_KEY, 0x3008, { KEY_NUMERIC_8 } },
+ { KE_KEY, 0x3009, { KEY_NUMERIC_9 } },
+ { KE_KEY, 0x3022, { KEY_ENTER } },
+ { KE_KEY, 0x30ec, { KEY_MODE } }, /* "tv/vcr/..." */
+ { KE_KEY, 0x300f, { KEY_SELECT } }, /* "info" */
+ { KE_KEY, 0x3020, { KEY_CHANNELUP } }, /* "up" */
+ { KE_KEY, 0x302e, { KEY_MENU } }, /* "in/out" */
+ { KE_KEY, 0x3011, { KEY_VOLUMEDOWN } }, /* "left" */
+ { KE_KEY, 0x300d, { KEY_MUTE } }, /* "ok" */
+ { KE_KEY, 0x3010, { KEY_VOLUMEUP } }, /* "right" */
+ { KE_KEY, 0x301e, { KEY_SUBTITLE } }, /* "cc" */
+ { KE_KEY, 0x3021, { KEY_CHANNELDOWN } },/* "down" */
+ { KE_KEY, 0x3022, { KEY_PREVIOUS } },
+ { KE_KEY, 0x3026, { KEY_SLEEP } },
+ { KE_KEY, 0x3172, { KEY_REWIND } }, /* NOTE: docs wrongly say 0x30ca */
+ { KE_KEY, 0x3175, { KEY_PLAY } },
+ { KE_KEY, 0x3174, { KEY_FASTFORWARD } },
+ { KE_KEY, 0x3177, { KEY_RECORD } },
+ { KE_KEY, 0x3176, { KEY_STOP } },
+ { KE_KEY, 0x3169, { KEY_PAUSE } },
+};
+
+/*
+ * Because we communicate with the MSP430 using I2C, and all I2C calls
+ * in Linux sleep, we use a threaded IRQ handler. The IRQ itself is
+ * active low, but we go through the GPIO controller so we can trigger
+ * on falling edges and not worry about enabling/disabling the IRQ in
+ * the keypress handling path.
+ */
+static irqreturn_t dm355evm_keys_irq(int irq, void *_keys)
+{
+ static u16 last_event;
+ struct dm355evm_keys *keys = _keys;
+ const struct key_entry *ke;
+ unsigned int keycode;
+ int status;
+ u16 event;
+
+ /* For simplicity we ignore INPUT_COUNT and just read
+ * events until we get the "queue empty" indicator.
+ * Reading INPUT_LOW decrements the count.
+ */
+ for (;;) {
+ status = dm355evm_msp_read(DM355EVM_MSP_INPUT_HIGH);
+ if (status < 0) {
+ dev_dbg(keys->dev, "input high err %d\n",
+ status);
+ break;
+ }
+ event = status << 8;
+
+ status = dm355evm_msp_read(DM355EVM_MSP_INPUT_LOW);
+ if (status < 0) {
+ dev_dbg(keys->dev, "input low err %d\n",
+ status);
+ break;
+ }
+ event |= status;
+ if (event == 0xdead)
+ break;
+
+ /* Press and release a button: two events, same code.
+ * Press and hold (autorepeat), then release: N events
+ * (N > 2), same code. For RC5 buttons the toggle bits
+ * distinguish (for example) "1-autorepeat" from "1 1";
+ * but PCB buttons don't support that bit.
+ *
+ * So we must synthesize release events. We do that by
+ * mapping events to a press/release event pair; then
+ * to avoid adding extra events, skip the second event
+ * of each pair.
+ */
+ if (event == last_event) {
+ last_event = 0;
+ continue;
+ }
+ last_event = event;
+
+ /* ignore the RC5 toggle bit */
+ event &= ~0x0800;
+
+ /* find the key, or report it as unknown */
+ ke = sparse_keymap_entry_from_scancode(keys->input, event);
+ keycode = ke ? ke->keycode : KEY_UNKNOWN;
+ dev_dbg(keys->dev,
+ "input event 0x%04x--> keycode %d\n",
+ event, keycode);
+
+ /* report press + release */
+ input_report_key(keys->input, keycode, 1);
+ input_sync(keys->input);
+ input_report_key(keys->input, keycode, 0);
+ input_sync(keys->input);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*----------------------------------------------------------------------*/
+
+static int dm355evm_keys_probe(struct platform_device *pdev)
+{
+ struct dm355evm_keys *keys;
+ struct input_dev *input;
+ int status;
+
+ /* allocate instance struct and input dev */
+ keys = kzalloc(sizeof *keys, GFP_KERNEL);
+ input = input_allocate_device();
+ if (!keys || !input) {
+ status = -ENOMEM;
+ goto fail1;
+ }
+
+ keys->dev = &pdev->dev;
+ keys->input = input;
+
+ /* set up "threaded IRQ handler" */
+ status = platform_get_irq(pdev, 0);
+ if (status < 0)
+ goto fail1;
+ keys->irq = status;
+
+ input_set_drvdata(input, keys);
+
+ input->name = "DM355 EVM Controls";
+ input->phys = "dm355evm/input0";
+ input->dev.parent = &pdev->dev;
+
+ input->id.bustype = BUS_I2C;
+ input->id.product = 0x0355;
+ input->id.version = dm355evm_msp_read(DM355EVM_MSP_FIRMREV);
+
+ status = sparse_keymap_setup(input, dm355evm_keys, NULL);
+ if (status)
+ goto fail1;
+
+ /* REVISIT: flush the event queue? */
+
+ status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ dev_name(&pdev->dev), keys);
+ if (status < 0)
+ goto fail2;
+
+ /* register */
+ status = input_register_device(input);
+ if (status < 0)
+ goto fail3;
+
+ platform_set_drvdata(pdev, keys);
+
+ return 0;
+
+fail3:
+ free_irq(keys->irq, keys);
+fail2:
+ sparse_keymap_free(input);
+fail1:
+ input_free_device(input);
+ kfree(keys);
+ dev_err(&pdev->dev, "can't register, err %d\n", status);
+
+ return status;
+}
+
+static int dm355evm_keys_remove(struct platform_device *pdev)
+{
+ struct dm355evm_keys *keys = platform_get_drvdata(pdev);
+
+ free_irq(keys->irq, keys);
+ sparse_keymap_free(keys->input);
+ input_unregister_device(keys->input);
+ kfree(keys);
+
+ return 0;
+}
+
+/* REVISIT: add suspend/resume when DaVinci supports it. The IRQ should
+ * be able to wake up the system. When device_may_wakeup(&pdev->dev), call
+ * enable_irq_wake() on suspend, and disable_irq_wake() on resume.
+ */
+
+/*
+ * I2C is used to talk to the MSP430, but this platform device is
+ * exposed by an MFD driver that manages I2C communications.
+ */
+static struct platform_driver dm355evm_keys_driver = {
+ .probe = dm355evm_keys_probe,
+ .remove = dm355evm_keys_remove,
+ .driver = {
+ .name = "dm355evm_keys",
+ },
+};
+module_platform_driver(dm355evm_keys_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/drv260x.c b/kernel/drivers/input/misc/drv260x.c
new file mode 100644
index 000000000..599578042
--- /dev/null
+++ b/kernel/drivers/input/misc/drv260x.c
@@ -0,0 +1,738 @@
+/*
+ * DRV260X haptics driver family
+ *
+ * Author: Dan Murphy <dmurphy@ti.com>
+ *
+ * Copyright: (C) 2014 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+
+#include <dt-bindings/input/ti-drv260x.h>
+#include <linux/platform_data/drv260x-pdata.h>
+
+#define DRV260X_STATUS 0x0
+#define DRV260X_MODE 0x1
+#define DRV260X_RT_PB_IN 0x2
+#define DRV260X_LIB_SEL 0x3
+#define DRV260X_WV_SEQ_1 0x4
+#define DRV260X_WV_SEQ_2 0x5
+#define DRV260X_WV_SEQ_3 0x6
+#define DRV260X_WV_SEQ_4 0x7
+#define DRV260X_WV_SEQ_5 0x8
+#define DRV260X_WV_SEQ_6 0x9
+#define DRV260X_WV_SEQ_7 0xa
+#define DRV260X_WV_SEQ_8 0xb
+#define DRV260X_GO 0xc
+#define DRV260X_OVERDRIVE_OFF 0xd
+#define DRV260X_SUSTAIN_P_OFF 0xe
+#define DRV260X_SUSTAIN_N_OFF 0xf
+#define DRV260X_BRAKE_OFF 0x10
+#define DRV260X_A_TO_V_CTRL 0x11
+#define DRV260X_A_TO_V_MIN_INPUT 0x12
+#define DRV260X_A_TO_V_MAX_INPUT 0x13
+#define DRV260X_A_TO_V_MIN_OUT 0x14
+#define DRV260X_A_TO_V_MAX_OUT 0x15
+#define DRV260X_RATED_VOLT 0x16
+#define DRV260X_OD_CLAMP_VOLT 0x17
+#define DRV260X_CAL_COMP 0x18
+#define DRV260X_CAL_BACK_EMF 0x19
+#define DRV260X_FEEDBACK_CTRL 0x1a
+#define DRV260X_CTRL1 0x1b
+#define DRV260X_CTRL2 0x1c
+#define DRV260X_CTRL3 0x1d
+#define DRV260X_CTRL4 0x1e
+#define DRV260X_CTRL5 0x1f
+#define DRV260X_LRA_LOOP_PERIOD 0x20
+#define DRV260X_VBAT_MON 0x21
+#define DRV260X_LRA_RES_PERIOD 0x22
+#define DRV260X_MAX_REG 0x23
+
+#define DRV260X_GO_BIT 0x01
+
+/* Library Selection */
+#define DRV260X_LIB_SEL_MASK 0x07
+#define DRV260X_LIB_SEL_RAM 0x0
+#define DRV260X_LIB_SEL_OD 0x1
+#define DRV260X_LIB_SEL_40_60 0x2
+#define DRV260X_LIB_SEL_60_80 0x3
+#define DRV260X_LIB_SEL_100_140 0x4
+#define DRV260X_LIB_SEL_140_PLUS 0x5
+
+#define DRV260X_LIB_SEL_HIZ_MASK 0x10
+#define DRV260X_LIB_SEL_HIZ_EN 0x01
+#define DRV260X_LIB_SEL_HIZ_DIS 0
+
+/* Mode register */
+#define DRV260X_STANDBY (1 << 6)
+#define DRV260X_STANDBY_MASK 0x40
+#define DRV260X_INTERNAL_TRIGGER 0x00
+#define DRV260X_EXT_TRIGGER_EDGE 0x01
+#define DRV260X_EXT_TRIGGER_LEVEL 0x02
+#define DRV260X_PWM_ANALOG_IN 0x03
+#define DRV260X_AUDIOHAPTIC 0x04
+#define DRV260X_RT_PLAYBACK 0x05
+#define DRV260X_DIAGNOSTICS 0x06
+#define DRV260X_AUTO_CAL 0x07
+
+/* Audio to Haptics Control */
+#define DRV260X_AUDIO_HAPTICS_PEAK_10MS (0 << 2)
+#define DRV260X_AUDIO_HAPTICS_PEAK_20MS (1 << 2)
+#define DRV260X_AUDIO_HAPTICS_PEAK_30MS (2 << 2)
+#define DRV260X_AUDIO_HAPTICS_PEAK_40MS (3 << 2)
+
+#define DRV260X_AUDIO_HAPTICS_FILTER_100HZ 0x00
+#define DRV260X_AUDIO_HAPTICS_FILTER_125HZ 0x01
+#define DRV260X_AUDIO_HAPTICS_FILTER_150HZ 0x02
+#define DRV260X_AUDIO_HAPTICS_FILTER_200HZ 0x03
+
+/* Min/Max Input/Output Voltages */
+#define DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT 0x19
+#define DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT 0x64
+#define DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT 0x19
+#define DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT 0xFF
+
+/* Feedback register */
+#define DRV260X_FB_REG_ERM_MODE 0x7f
+#define DRV260X_FB_REG_LRA_MODE (1 << 7)
+
+#define DRV260X_BRAKE_FACTOR_MASK 0x1f
+#define DRV260X_BRAKE_FACTOR_2X (1 << 0)
+#define DRV260X_BRAKE_FACTOR_3X (2 << 4)
+#define DRV260X_BRAKE_FACTOR_4X (3 << 4)
+#define DRV260X_BRAKE_FACTOR_6X (4 << 4)
+#define DRV260X_BRAKE_FACTOR_8X (5 << 4)
+#define DRV260X_BRAKE_FACTOR_16 (6 << 4)
+#define DRV260X_BRAKE_FACTOR_DIS (7 << 4)
+
+#define DRV260X_LOOP_GAIN_LOW 0xf3
+#define DRV260X_LOOP_GAIN_MED (1 << 2)
+#define DRV260X_LOOP_GAIN_HIGH (2 << 2)
+#define DRV260X_LOOP_GAIN_VERY_HIGH (3 << 2)
+
+#define DRV260X_BEMF_GAIN_0 0xfc
+#define DRV260X_BEMF_GAIN_1 (1 << 0)
+#define DRV260X_BEMF_GAIN_2 (2 << 0)
+#define DRV260X_BEMF_GAIN_3 (3 << 0)
+
+/* Control 1 register */
+#define DRV260X_AC_CPLE_EN (1 << 5)
+#define DRV260X_STARTUP_BOOST (1 << 7)
+
+/* Control 2 register */
+
+#define DRV260X_IDISS_TIME_45 0
+#define DRV260X_IDISS_TIME_75 (1 << 0)
+#define DRV260X_IDISS_TIME_150 (1 << 1)
+#define DRV260X_IDISS_TIME_225 0x03
+
+#define DRV260X_BLANK_TIME_45 (0 << 2)
+#define DRV260X_BLANK_TIME_75 (1 << 2)
+#define DRV260X_BLANK_TIME_150 (2 << 2)
+#define DRV260X_BLANK_TIME_225 (3 << 2)
+
+#define DRV260X_SAMP_TIME_150 (0 << 4)
+#define DRV260X_SAMP_TIME_200 (1 << 4)
+#define DRV260X_SAMP_TIME_250 (2 << 4)
+#define DRV260X_SAMP_TIME_300 (3 << 4)
+
+#define DRV260X_BRAKE_STABILIZER (1 << 6)
+#define DRV260X_UNIDIR_IN (0 << 7)
+#define DRV260X_BIDIR_IN (1 << 7)
+
+/* Control 3 Register */
+#define DRV260X_LRA_OPEN_LOOP (1 << 0)
+#define DRV260X_ANANLOG_IN (1 << 1)
+#define DRV260X_LRA_DRV_MODE (1 << 2)
+#define DRV260X_RTP_UNSIGNED_DATA (1 << 3)
+#define DRV260X_SUPPLY_COMP_DIS (1 << 4)
+#define DRV260X_ERM_OPEN_LOOP (1 << 5)
+#define DRV260X_NG_THRESH_0 (0 << 6)
+#define DRV260X_NG_THRESH_2 (1 << 6)
+#define DRV260X_NG_THRESH_4 (2 << 6)
+#define DRV260X_NG_THRESH_8 (3 << 6)
+
+/* Control 4 Register */
+#define DRV260X_AUTOCAL_TIME_150MS (0 << 4)
+#define DRV260X_AUTOCAL_TIME_250MS (1 << 4)
+#define DRV260X_AUTOCAL_TIME_500MS (2 << 4)
+#define DRV260X_AUTOCAL_TIME_1000MS (3 << 4)
+
+/**
+ * struct drv260x_data -
+ * @input_dev - Pointer to the input device
+ * @client - Pointer to the I2C client
+ * @regmap - Register map of the device
+ * @work - Work item used to off load the enable/disable of the vibration
+ * @enable_gpio - Pointer to the gpio used for enable/disabling
+ * @regulator - Pointer to the regulator for the IC
+ * @magnitude - Magnitude of the vibration event
+ * @mode - The operating mode of the IC (LRA_NO_CAL, ERM or LRA)
+ * @library - The vibration library to be used
+ * @rated_voltage - The rated_voltage of the actuator
+ * @overdriver_voltage - The over drive voltage of the actuator
+**/
+struct drv260x_data {
+ struct input_dev *input_dev;
+ struct i2c_client *client;
+ struct regmap *regmap;
+ struct work_struct work;
+ struct gpio_desc *enable_gpio;
+ struct regulator *regulator;
+ u32 magnitude;
+ u32 mode;
+ u32 library;
+ int rated_voltage;
+ int overdrive_voltage;
+};
+
+static struct reg_default drv260x_reg_defs[] = {
+ { DRV260X_STATUS, 0xe0 },
+ { DRV260X_MODE, 0x40 },
+ { DRV260X_RT_PB_IN, 0x00 },
+ { DRV260X_LIB_SEL, 0x00 },
+ { DRV260X_WV_SEQ_1, 0x01 },
+ { DRV260X_WV_SEQ_2, 0x00 },
+ { DRV260X_WV_SEQ_3, 0x00 },
+ { DRV260X_WV_SEQ_4, 0x00 },
+ { DRV260X_WV_SEQ_5, 0x00 },
+ { DRV260X_WV_SEQ_6, 0x00 },
+ { DRV260X_WV_SEQ_7, 0x00 },
+ { DRV260X_WV_SEQ_8, 0x00 },
+ { DRV260X_GO, 0x00 },
+ { DRV260X_OVERDRIVE_OFF, 0x00 },
+ { DRV260X_SUSTAIN_P_OFF, 0x00 },
+ { DRV260X_SUSTAIN_N_OFF, 0x00 },
+ { DRV260X_BRAKE_OFF, 0x00 },
+ { DRV260X_A_TO_V_CTRL, 0x05 },
+ { DRV260X_A_TO_V_MIN_INPUT, 0x19 },
+ { DRV260X_A_TO_V_MAX_INPUT, 0xff },
+ { DRV260X_A_TO_V_MIN_OUT, 0x19 },
+ { DRV260X_A_TO_V_MAX_OUT, 0xff },
+ { DRV260X_RATED_VOLT, 0x3e },
+ { DRV260X_OD_CLAMP_VOLT, 0x8c },
+ { DRV260X_CAL_COMP, 0x0c },
+ { DRV260X_CAL_BACK_EMF, 0x6c },
+ { DRV260X_FEEDBACK_CTRL, 0x36 },
+ { DRV260X_CTRL1, 0x93 },
+ { DRV260X_CTRL2, 0xfa },
+ { DRV260X_CTRL3, 0xa0 },
+ { DRV260X_CTRL4, 0x20 },
+ { DRV260X_CTRL5, 0x80 },
+ { DRV260X_LRA_LOOP_PERIOD, 0x33 },
+ { DRV260X_VBAT_MON, 0x00 },
+ { DRV260X_LRA_RES_PERIOD, 0x00 },
+};
+
+#define DRV260X_DEF_RATED_VOLT 0x90
+#define DRV260X_DEF_OD_CLAMP_VOLT 0x90
+
+/**
+ * Rated and Overdriver Voltages:
+ * Calculated using the formula r = v * 255 / 5.6
+ * where r is what will be written to the register
+ * and v is the rated or overdriver voltage of the actuator
+ **/
+static int drv260x_calculate_voltage(unsigned int voltage)
+{
+ return (voltage * 255 / 5600);
+}
+
+static void drv260x_worker(struct work_struct *work)
+{
+ struct drv260x_data *haptics = container_of(work, struct drv260x_data, work);
+ int error;
+
+ gpiod_set_value(haptics->enable_gpio, 1);
+ /* Data sheet says to wait 250us before trying to communicate */
+ udelay(250);
+
+ error = regmap_write(haptics->regmap,
+ DRV260X_MODE, DRV260X_RT_PLAYBACK);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write set mode: %d\n", error);
+ } else {
+ error = regmap_write(haptics->regmap,
+ DRV260X_RT_PB_IN, haptics->magnitude);
+ if (error)
+ dev_err(&haptics->client->dev,
+ "Failed to set magnitude: %d\n", error);
+ }
+}
+
+static int drv260x_haptics_play(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct drv260x_data *haptics = input_get_drvdata(input);
+
+ haptics->mode = DRV260X_LRA_NO_CAL_MODE;
+
+ if (effect->u.rumble.strong_magnitude > 0)
+ haptics->magnitude = effect->u.rumble.strong_magnitude;
+ else if (effect->u.rumble.weak_magnitude > 0)
+ haptics->magnitude = effect->u.rumble.weak_magnitude;
+ else
+ haptics->magnitude = 0;
+
+ schedule_work(&haptics->work);
+
+ return 0;
+}
+
+static void drv260x_close(struct input_dev *input)
+{
+ struct drv260x_data *haptics = input_get_drvdata(input);
+ int error;
+
+ cancel_work_sync(&haptics->work);
+
+ error = regmap_write(haptics->regmap, DRV260X_MODE, DRV260X_STANDBY);
+ if (error)
+ dev_err(&haptics->client->dev,
+ "Failed to enter standby mode: %d\n", error);
+
+ gpiod_set_value(haptics->enable_gpio, 0);
+}
+
+static const struct reg_default drv260x_lra_cal_regs[] = {
+ { DRV260X_MODE, DRV260X_AUTO_CAL },
+ { DRV260X_CTRL3, DRV260X_NG_THRESH_2 },
+ { DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
+ DRV260X_BRAKE_FACTOR_4X | DRV260X_LOOP_GAIN_HIGH },
+};
+
+static const struct reg_default drv260x_lra_init_regs[] = {
+ { DRV260X_MODE, DRV260X_RT_PLAYBACK },
+ { DRV260X_A_TO_V_CTRL, DRV260X_AUDIO_HAPTICS_PEAK_20MS |
+ DRV260X_AUDIO_HAPTICS_FILTER_125HZ },
+ { DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
+ { DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
+ { DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
+ { DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
+ { DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
+ DRV260X_BRAKE_FACTOR_2X | DRV260X_LOOP_GAIN_MED |
+ DRV260X_BEMF_GAIN_3 },
+ { DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
+ { DRV260X_CTRL2, DRV260X_SAMP_TIME_250 },
+ { DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ANANLOG_IN },
+ { DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
+};
+
+static const struct reg_default drv260x_erm_cal_regs[] = {
+ { DRV260X_MODE, DRV260X_AUTO_CAL },
+ { DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
+ { DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
+ { DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
+ { DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
+ { DRV260X_FEEDBACK_CTRL, DRV260X_BRAKE_FACTOR_3X |
+ DRV260X_LOOP_GAIN_MED | DRV260X_BEMF_GAIN_2 },
+ { DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
+ { DRV260X_CTRL2, DRV260X_SAMP_TIME_250 | DRV260X_BLANK_TIME_75 |
+ DRV260X_IDISS_TIME_75 },
+ { DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ERM_OPEN_LOOP },
+ { DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
+};
+
+static int drv260x_init(struct drv260x_data *haptics)
+{
+ int error;
+ unsigned int cal_buf;
+
+ error = regmap_write(haptics->regmap,
+ DRV260X_RATED_VOLT, haptics->rated_voltage);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write DRV260X_RATED_VOLT register: %d\n",
+ error);
+ return error;
+ }
+
+ error = regmap_write(haptics->regmap,
+ DRV260X_OD_CLAMP_VOLT, haptics->overdrive_voltage);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write DRV260X_OD_CLAMP_VOLT register: %d\n",
+ error);
+ return error;
+ }
+
+ switch (haptics->mode) {
+ case DRV260X_LRA_MODE:
+ error = regmap_register_patch(haptics->regmap,
+ drv260x_lra_cal_regs,
+ ARRAY_SIZE(drv260x_lra_cal_regs));
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write LRA calibration registers: %d\n",
+ error);
+ return error;
+ }
+
+ break;
+
+ case DRV260X_ERM_MODE:
+ error = regmap_register_patch(haptics->regmap,
+ drv260x_erm_cal_regs,
+ ARRAY_SIZE(drv260x_erm_cal_regs));
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write ERM calibration registers: %d\n",
+ error);
+ return error;
+ }
+
+ error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
+ DRV260X_LIB_SEL_MASK,
+ haptics->library);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write DRV260X_LIB_SEL register: %d\n",
+ error);
+ return error;
+ }
+
+ break;
+
+ default:
+ error = regmap_register_patch(haptics->regmap,
+ drv260x_lra_init_regs,
+ ARRAY_SIZE(drv260x_lra_init_regs));
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write LRA init registers: %d\n",
+ error);
+ return error;
+ }
+
+ error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
+ DRV260X_LIB_SEL_MASK,
+ haptics->library);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write DRV260X_LIB_SEL register: %d\n",
+ error);
+ return error;
+ }
+
+ /* No need to set GO bit here */
+ return 0;
+ }
+
+ error = regmap_write(haptics->regmap, DRV260X_GO, DRV260X_GO_BIT);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write GO register: %d\n",
+ error);
+ return error;
+ }
+
+ do {
+ error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to read GO register: %d\n",
+ error);
+ return error;
+ }
+ } while (cal_buf == DRV260X_GO_BIT);
+
+ return 0;
+}
+
+static const struct regmap_config drv260x_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = DRV260X_MAX_REG,
+ .reg_defaults = drv260x_reg_defs,
+ .num_reg_defaults = ARRAY_SIZE(drv260x_reg_defs),
+ .cache_type = REGCACHE_NONE,
+};
+
+#ifdef CONFIG_OF
+static int drv260x_parse_dt(struct device *dev,
+ struct drv260x_data *haptics)
+{
+ struct device_node *np = dev->of_node;
+ unsigned int voltage;
+ int error;
+
+ error = of_property_read_u32(np, "mode", &haptics->mode);
+ if (error) {
+ dev_err(dev, "%s: No entry for mode\n", __func__);
+ return error;
+ }
+
+ error = of_property_read_u32(np, "library-sel", &haptics->library);
+ if (error) {
+ dev_err(dev, "%s: No entry for library selection\n",
+ __func__);
+ return error;
+ }
+
+ error = of_property_read_u32(np, "vib-rated-mv", &voltage);
+ if (!error)
+ haptics->rated_voltage = drv260x_calculate_voltage(voltage);
+
+
+ error = of_property_read_u32(np, "vib-overdrive-mv", &voltage);
+ if (!error)
+ haptics->overdrive_voltage = drv260x_calculate_voltage(voltage);
+
+ return 0;
+}
+#else
+static inline int drv260x_parse_dt(struct device *dev,
+ struct drv260x_data *haptics)
+{
+ dev_err(dev, "no platform data defined\n");
+
+ return -EINVAL;
+}
+#endif
+
+static int drv260x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct drv260x_platform_data *pdata = dev_get_platdata(&client->dev);
+ struct drv260x_data *haptics;
+ int error;
+
+ haptics = devm_kzalloc(&client->dev, sizeof(*haptics), GFP_KERNEL);
+ if (!haptics)
+ return -ENOMEM;
+
+ haptics->rated_voltage = DRV260X_DEF_OD_CLAMP_VOLT;
+ haptics->rated_voltage = DRV260X_DEF_RATED_VOLT;
+
+ if (pdata) {
+ haptics->mode = pdata->mode;
+ haptics->library = pdata->library_selection;
+ if (pdata->vib_overdrive_voltage)
+ haptics->overdrive_voltage = drv260x_calculate_voltage(pdata->vib_overdrive_voltage);
+ if (pdata->vib_rated_voltage)
+ haptics->rated_voltage = drv260x_calculate_voltage(pdata->vib_rated_voltage);
+ } else if (client->dev.of_node) {
+ error = drv260x_parse_dt(&client->dev, haptics);
+ if (error)
+ return error;
+ } else {
+ dev_err(&client->dev, "Platform data not set\n");
+ return -ENODEV;
+ }
+
+
+ if (haptics->mode < DRV260X_LRA_MODE ||
+ haptics->mode > DRV260X_ERM_MODE) {
+ dev_err(&client->dev,
+ "Vibrator mode is invalid: %i\n",
+ haptics->mode);
+ return -EINVAL;
+ }
+
+ if (haptics->library < DRV260X_LIB_EMPTY ||
+ haptics->library > DRV260X_ERM_LIB_F) {
+ dev_err(&client->dev,
+ "Library value is invalid: %i\n", haptics->library);
+ return -EINVAL;
+ }
+
+ if (haptics->mode == DRV260X_LRA_MODE &&
+ haptics->library != DRV260X_LIB_EMPTY &&
+ haptics->library != DRV260X_LIB_LRA) {
+ dev_err(&client->dev,
+ "LRA Mode with ERM Library mismatch\n");
+ return -EINVAL;
+ }
+
+ if (haptics->mode == DRV260X_ERM_MODE &&
+ (haptics->library == DRV260X_LIB_EMPTY ||
+ haptics->library == DRV260X_LIB_LRA)) {
+ dev_err(&client->dev,
+ "ERM Mode with LRA Library mismatch\n");
+ return -EINVAL;
+ }
+
+ haptics->regulator = devm_regulator_get(&client->dev, "vbat");
+ if (IS_ERR(haptics->regulator)) {
+ error = PTR_ERR(haptics->regulator);
+ dev_err(&client->dev,
+ "unable to get regulator, error: %d\n", error);
+ return error;
+ }
+
+ haptics->enable_gpio = devm_gpiod_get(&client->dev, "enable");
+ if (IS_ERR(haptics->enable_gpio)) {
+ error = PTR_ERR(haptics->enable_gpio);
+ if (error != -ENOENT && error != -ENOSYS)
+ return error;
+ haptics->enable_gpio = NULL;
+ } else {
+ gpiod_direction_output(haptics->enable_gpio, 1);
+ }
+
+ haptics->input_dev = devm_input_allocate_device(&client->dev);
+ if (!haptics->input_dev) {
+ dev_err(&client->dev, "Failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ haptics->input_dev->name = "drv260x:haptics";
+ haptics->input_dev->dev.parent = client->dev.parent;
+ haptics->input_dev->close = drv260x_close;
+ input_set_drvdata(haptics->input_dev, haptics);
+ input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(haptics->input_dev, NULL,
+ drv260x_haptics_play);
+ if (error) {
+ dev_err(&client->dev, "input_ff_create() failed: %d\n",
+ error);
+ return error;
+ }
+
+ INIT_WORK(&haptics->work, drv260x_worker);
+
+ haptics->client = client;
+ i2c_set_clientdata(client, haptics);
+
+ haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config);
+ if (IS_ERR(haptics->regmap)) {
+ error = PTR_ERR(haptics->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ error);
+ return error;
+ }
+
+ error = drv260x_init(haptics);
+ if (error) {
+ dev_err(&client->dev, "Device init failed: %d\n", error);
+ return error;
+ }
+
+ error = input_register_device(haptics->input_dev);
+ if (error) {
+ dev_err(&client->dev, "couldn't register input device: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused drv260x_suspend(struct device *dev)
+{
+ struct drv260x_data *haptics = dev_get_drvdata(dev);
+ int ret = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ if (haptics->input_dev->users) {
+ ret = regmap_update_bits(haptics->regmap,
+ DRV260X_MODE,
+ DRV260X_STANDBY_MASK,
+ DRV260X_STANDBY);
+ if (ret) {
+ dev_err(dev, "Failed to set standby mode\n");
+ goto out;
+ }
+
+ gpiod_set_value(haptics->enable_gpio, 0);
+
+ ret = regulator_disable(haptics->regulator);
+ if (ret) {
+ dev_err(dev, "Failed to disable regulator\n");
+ regmap_update_bits(haptics->regmap,
+ DRV260X_MODE,
+ DRV260X_STANDBY_MASK, 0);
+ }
+ }
+out:
+ mutex_unlock(&haptics->input_dev->mutex);
+ return ret;
+}
+
+static int __maybe_unused drv260x_resume(struct device *dev)
+{
+ struct drv260x_data *haptics = dev_get_drvdata(dev);
+ int ret = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ if (haptics->input_dev->users) {
+ ret = regulator_enable(haptics->regulator);
+ if (ret) {
+ dev_err(dev, "Failed to enable regulator\n");
+ goto out;
+ }
+
+ ret = regmap_update_bits(haptics->regmap,
+ DRV260X_MODE,
+ DRV260X_STANDBY_MASK, 0);
+ if (ret) {
+ dev_err(dev, "Failed to unset standby mode\n");
+ regulator_disable(haptics->regulator);
+ goto out;
+ }
+
+ gpiod_set_value(haptics->enable_gpio, 1);
+ }
+
+out:
+ mutex_unlock(&haptics->input_dev->mutex);
+ return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(drv260x_pm_ops, drv260x_suspend, drv260x_resume);
+
+static const struct i2c_device_id drv260x_id[] = {
+ { "drv2605l", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, drv260x_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id drv260x_of_match[] = {
+ { .compatible = "ti,drv2604", },
+ { .compatible = "ti,drv2604l", },
+ { .compatible = "ti,drv2605", },
+ { .compatible = "ti,drv2605l", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, drv260x_of_match);
+#endif
+
+static struct i2c_driver drv260x_driver = {
+ .probe = drv260x_probe,
+ .driver = {
+ .name = "drv260x-haptics",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(drv260x_of_match),
+ .pm = &drv260x_pm_ops,
+ },
+ .id_table = drv260x_id,
+};
+module_i2c_driver(drv260x_driver);
+
+MODULE_DESCRIPTION("TI DRV260x haptics driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
diff --git a/kernel/drivers/input/misc/drv2667.c b/kernel/drivers/input/misc/drv2667.c
new file mode 100644
index 000000000..fc0fddf08
--- /dev/null
+++ b/kernel/drivers/input/misc/drv2667.c
@@ -0,0 +1,497 @@
+/*
+ * DRV2667 haptics driver family
+ *
+ * Author: Dan Murphy <dmurphy@ti.com>
+ *
+ * Copyright: (C) 2014 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/regulator/consumer.h>
+
+/* Contol registers */
+#define DRV2667_STATUS 0x00
+#define DRV2667_CTRL_1 0x01
+#define DRV2667_CTRL_2 0x02
+/* Waveform sequencer */
+#define DRV2667_WV_SEQ_0 0x03
+#define DRV2667_WV_SEQ_1 0x04
+#define DRV2667_WV_SEQ_2 0x05
+#define DRV2667_WV_SEQ_3 0x06
+#define DRV2667_WV_SEQ_4 0x07
+#define DRV2667_WV_SEQ_5 0x08
+#define DRV2667_WV_SEQ_6 0x09
+#define DRV2667_WV_SEQ_7 0x0A
+#define DRV2667_FIFO 0x0B
+#define DRV2667_PAGE 0xFF
+#define DRV2667_MAX_REG DRV2667_PAGE
+
+#define DRV2667_PAGE_0 0x00
+#define DRV2667_PAGE_1 0x01
+#define DRV2667_PAGE_2 0x02
+#define DRV2667_PAGE_3 0x03
+#define DRV2667_PAGE_4 0x04
+#define DRV2667_PAGE_5 0x05
+#define DRV2667_PAGE_6 0x06
+#define DRV2667_PAGE_7 0x07
+#define DRV2667_PAGE_8 0x08
+
+/* RAM fields */
+#define DRV2667_RAM_HDR_SZ 0x0
+/* RAM Header addresses */
+#define DRV2667_RAM_START_HI 0x01
+#define DRV2667_RAM_START_LO 0x02
+#define DRV2667_RAM_STOP_HI 0x03
+#define DRV2667_RAM_STOP_LO 0x04
+#define DRV2667_RAM_REPEAT_CT 0x05
+/* RAM data addresses */
+#define DRV2667_RAM_AMP 0x06
+#define DRV2667_RAM_FREQ 0x07
+#define DRV2667_RAM_DURATION 0x08
+#define DRV2667_RAM_ENVELOPE 0x09
+
+/* Control 1 Register */
+#define DRV2667_25_VPP_GAIN 0x00
+#define DRV2667_50_VPP_GAIN 0x01
+#define DRV2667_75_VPP_GAIN 0x02
+#define DRV2667_100_VPP_GAIN 0x03
+#define DRV2667_DIGITAL_IN 0xfc
+#define DRV2667_ANALOG_IN (1 << 2)
+
+/* Control 2 Register */
+#define DRV2667_GO (1 << 0)
+#define DRV2667_STANDBY (1 << 6)
+#define DRV2667_DEV_RST (1 << 7)
+
+/* RAM Envelope settings */
+#define DRV2667_NO_ENV 0x00
+#define DRV2667_32_MS_ENV 0x01
+#define DRV2667_64_MS_ENV 0x02
+#define DRV2667_96_MS_ENV 0x03
+#define DRV2667_128_MS_ENV 0x04
+#define DRV2667_160_MS_ENV 0x05
+#define DRV2667_192_MS_ENV 0x06
+#define DRV2667_224_MS_ENV 0x07
+#define DRV2667_256_MS_ENV 0x08
+#define DRV2667_512_MS_ENV 0x09
+#define DRV2667_768_MS_ENV 0x0a
+#define DRV2667_1024_MS_ENV 0x0b
+#define DRV2667_1280_MS_ENV 0x0c
+#define DRV2667_1536_MS_ENV 0x0d
+#define DRV2667_1792_MS_ENV 0x0e
+#define DRV2667_2048_MS_ENV 0x0f
+
+/**
+ * struct drv2667_data -
+ * @input_dev - Pointer to the input device
+ * @client - Pointer to the I2C client
+ * @regmap - Register map of the device
+ * @work - Work item used to off load the enable/disable of the vibration
+ * @regulator - Pointer to the regulator for the IC
+ * @magnitude - Magnitude of the vibration event
+**/
+struct drv2667_data {
+ struct input_dev *input_dev;
+ struct i2c_client *client;
+ struct regmap *regmap;
+ struct work_struct work;
+ struct regulator *regulator;
+ u32 page;
+ u32 magnitude;
+ u32 frequency;
+};
+
+static struct reg_default drv2667_reg_defs[] = {
+ { DRV2667_STATUS, 0x02 },
+ { DRV2667_CTRL_1, 0x28 },
+ { DRV2667_CTRL_2, 0x40 },
+ { DRV2667_WV_SEQ_0, 0x00 },
+ { DRV2667_WV_SEQ_1, 0x00 },
+ { DRV2667_WV_SEQ_2, 0x00 },
+ { DRV2667_WV_SEQ_3, 0x00 },
+ { DRV2667_WV_SEQ_4, 0x00 },
+ { DRV2667_WV_SEQ_5, 0x00 },
+ { DRV2667_WV_SEQ_6, 0x00 },
+ { DRV2667_WV_SEQ_7, 0x00 },
+ { DRV2667_FIFO, 0x00 },
+ { DRV2667_PAGE, 0x00 },
+};
+
+static int drv2667_set_waveform_freq(struct drv2667_data *haptics)
+{
+ unsigned int read_buf;
+ int freq;
+ int error;
+
+ /* Per the data sheet:
+ * Sinusoid Frequency (Hz) = 7.8125 x Frequency
+ */
+ freq = (haptics->frequency * 1000) / 78125;
+ if (freq <= 0) {
+ dev_err(&haptics->client->dev,
+ "ERROR: Frequency calculated to %i\n", freq);
+ return -EINVAL;
+ }
+
+ error = regmap_read(haptics->regmap, DRV2667_PAGE, &read_buf);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to read the page number: %d\n", error);
+ return -EIO;
+ }
+
+ if (read_buf == DRV2667_PAGE_0 ||
+ haptics->page != read_buf) {
+ error = regmap_write(haptics->regmap,
+ DRV2667_PAGE, haptics->page);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to set the page: %d\n", error);
+ return -EIO;
+ }
+ }
+
+ error = regmap_write(haptics->regmap, DRV2667_RAM_FREQ, freq);
+ if (error)
+ dev_err(&haptics->client->dev,
+ "Failed to set the frequency: %d\n", error);
+
+ /* Reset back to original page */
+ if (read_buf == DRV2667_PAGE_0 ||
+ haptics->page != read_buf) {
+ error = regmap_write(haptics->regmap, DRV2667_PAGE, read_buf);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to set the page: %d\n", error);
+ return -EIO;
+ }
+ }
+
+ return error;
+}
+
+static void drv2667_worker(struct work_struct *work)
+{
+ struct drv2667_data *haptics = container_of(work, struct drv2667_data, work);
+ int error;
+
+ if (haptics->magnitude) {
+ error = regmap_write(haptics->regmap,
+ DRV2667_PAGE, haptics->page);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to set the page: %d\n", error);
+ return;
+ }
+
+ error = regmap_write(haptics->regmap, DRV2667_RAM_AMP,
+ haptics->magnitude);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to set the amplitude: %d\n", error);
+ return;
+ }
+
+ error = regmap_write(haptics->regmap,
+ DRV2667_PAGE, DRV2667_PAGE_0);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to set the page: %d\n", error);
+ return;
+ }
+
+ error = regmap_write(haptics->regmap,
+ DRV2667_CTRL_2, DRV2667_GO);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to set the GO bit: %d\n", error);
+ }
+ } else {
+ error = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
+ DRV2667_GO, 0);
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to unset the GO bit: %d\n", error);
+ }
+ }
+}
+
+static int drv2667_haptics_play(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct drv2667_data *haptics = input_get_drvdata(input);
+
+ if (effect->u.rumble.strong_magnitude > 0)
+ haptics->magnitude = effect->u.rumble.strong_magnitude;
+ else if (effect->u.rumble.weak_magnitude > 0)
+ haptics->magnitude = effect->u.rumble.weak_magnitude;
+ else
+ haptics->magnitude = 0;
+
+ schedule_work(&haptics->work);
+
+ return 0;
+}
+
+static void drv2667_close(struct input_dev *input)
+{
+ struct drv2667_data *haptics = input_get_drvdata(input);
+ int error;
+
+ cancel_work_sync(&haptics->work);
+
+ error = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
+ DRV2667_STANDBY, 1);
+ if (error)
+ dev_err(&haptics->client->dev,
+ "Failed to enter standby mode: %d\n", error);
+}
+
+static const struct reg_default drv2667_init_regs[] = {
+ { DRV2667_CTRL_2, 0 },
+ { DRV2667_CTRL_1, DRV2667_25_VPP_GAIN },
+ { DRV2667_WV_SEQ_0, 1 },
+ { DRV2667_WV_SEQ_1, 0 }
+};
+
+static const struct reg_default drv2667_page1_init[] = {
+ { DRV2667_RAM_HDR_SZ, 0x05 },
+ { DRV2667_RAM_START_HI, 0x80 },
+ { DRV2667_RAM_START_LO, 0x06 },
+ { DRV2667_RAM_STOP_HI, 0x00 },
+ { DRV2667_RAM_STOP_LO, 0x09 },
+ { DRV2667_RAM_REPEAT_CT, 0 },
+ { DRV2667_RAM_DURATION, 0x05 },
+ { DRV2667_RAM_ENVELOPE, DRV2667_NO_ENV },
+ { DRV2667_RAM_AMP, 0x60 },
+};
+
+static int drv2667_init(struct drv2667_data *haptics)
+{
+ int error;
+
+ /* Set default haptic frequency to 195Hz on Page 1*/
+ haptics->frequency = 195;
+ haptics->page = DRV2667_PAGE_1;
+
+ error = regmap_register_patch(haptics->regmap,
+ drv2667_init_regs,
+ ARRAY_SIZE(drv2667_init_regs));
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write init registers: %d\n",
+ error);
+ return error;
+ }
+
+ error = regmap_write(haptics->regmap, DRV2667_PAGE, haptics->page);
+ if (error) {
+ dev_err(&haptics->client->dev, "Failed to set page: %d\n",
+ error);
+ goto error_out;
+ }
+
+ error = drv2667_set_waveform_freq(haptics);
+ if (error)
+ goto error_page;
+
+ error = regmap_register_patch(haptics->regmap,
+ drv2667_page1_init,
+ ARRAY_SIZE(drv2667_page1_init));
+ if (error) {
+ dev_err(&haptics->client->dev,
+ "Failed to write page registers: %d\n",
+ error);
+ return error;
+ }
+
+ error = regmap_write(haptics->regmap, DRV2667_PAGE, DRV2667_PAGE_0);
+ return error;
+
+error_page:
+ regmap_write(haptics->regmap, DRV2667_PAGE, DRV2667_PAGE_0);
+error_out:
+ return error;
+}
+
+static const struct regmap_config drv2667_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = DRV2667_MAX_REG,
+ .reg_defaults = drv2667_reg_defs,
+ .num_reg_defaults = ARRAY_SIZE(drv2667_reg_defs),
+ .cache_type = REGCACHE_NONE,
+};
+
+static int drv2667_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct drv2667_data *haptics;
+ int error;
+
+ haptics = devm_kzalloc(&client->dev, sizeof(*haptics), GFP_KERNEL);
+ if (!haptics)
+ return -ENOMEM;
+
+ haptics->regulator = devm_regulator_get(&client->dev, "vbat");
+ if (IS_ERR(haptics->regulator)) {
+ error = PTR_ERR(haptics->regulator);
+ dev_err(&client->dev,
+ "unable to get regulator, error: %d\n", error);
+ return error;
+ }
+
+ haptics->input_dev = devm_input_allocate_device(&client->dev);
+ if (!haptics->input_dev) {
+ dev_err(&client->dev, "Failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ haptics->input_dev->name = "drv2667:haptics";
+ haptics->input_dev->dev.parent = client->dev.parent;
+ haptics->input_dev->close = drv2667_close;
+ input_set_drvdata(haptics->input_dev, haptics);
+ input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(haptics->input_dev, NULL,
+ drv2667_haptics_play);
+ if (error) {
+ dev_err(&client->dev, "input_ff_create() failed: %d\n",
+ error);
+ return error;
+ }
+
+ INIT_WORK(&haptics->work, drv2667_worker);
+
+ haptics->client = client;
+ i2c_set_clientdata(client, haptics);
+
+ haptics->regmap = devm_regmap_init_i2c(client, &drv2667_regmap_config);
+ if (IS_ERR(haptics->regmap)) {
+ error = PTR_ERR(haptics->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ error);
+ return error;
+ }
+
+ error = drv2667_init(haptics);
+ if (error) {
+ dev_err(&client->dev, "Device init failed: %d\n", error);
+ return error;
+ }
+
+ error = input_register_device(haptics->input_dev);
+ if (error) {
+ dev_err(&client->dev, "couldn't register input device: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused drv2667_suspend(struct device *dev)
+{
+ struct drv2667_data *haptics = dev_get_drvdata(dev);
+ int ret = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ if (haptics->input_dev->users) {
+ ret = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
+ DRV2667_STANDBY, 1);
+ if (ret) {
+ dev_err(dev, "Failed to set standby mode\n");
+ regulator_disable(haptics->regulator);
+ goto out;
+ }
+
+ ret = regulator_disable(haptics->regulator);
+ if (ret) {
+ dev_err(dev, "Failed to disable regulator\n");
+ regmap_update_bits(haptics->regmap,
+ DRV2667_CTRL_2,
+ DRV2667_STANDBY, 0);
+ }
+ }
+out:
+ mutex_unlock(&haptics->input_dev->mutex);
+ return ret;
+}
+
+static int __maybe_unused drv2667_resume(struct device *dev)
+{
+ struct drv2667_data *haptics = dev_get_drvdata(dev);
+ int ret = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ if (haptics->input_dev->users) {
+ ret = regulator_enable(haptics->regulator);
+ if (ret) {
+ dev_err(dev, "Failed to enable regulator\n");
+ goto out;
+ }
+
+ ret = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
+ DRV2667_STANDBY, 0);
+ if (ret) {
+ dev_err(dev, "Failed to unset standby mode\n");
+ regulator_disable(haptics->regulator);
+ goto out;
+ }
+
+ }
+
+out:
+ mutex_unlock(&haptics->input_dev->mutex);
+ return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(drv2667_pm_ops, drv2667_suspend, drv2667_resume);
+
+static const struct i2c_device_id drv2667_id[] = {
+ { "drv2667", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, drv2667_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id drv2667_of_match[] = {
+ { .compatible = "ti,drv2667", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, drv2667_of_match);
+#endif
+
+static struct i2c_driver drv2667_driver = {
+ .probe = drv2667_probe,
+ .driver = {
+ .name = "drv2667-haptics",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(drv2667_of_match),
+ .pm = &drv2667_pm_ops,
+ },
+ .id_table = drv2667_id,
+};
+module_i2c_driver(drv2667_driver);
+
+MODULE_DESCRIPTION("TI DRV2667 haptics driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
diff --git a/kernel/drivers/input/misc/e3x0-button.c b/kernel/drivers/input/misc/e3x0-button.c
new file mode 100644
index 000000000..13bfca8a7
--- /dev/null
+++ b/kernel/drivers/input/misc/e3x0-button.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2014, National Instruments Corp. All rights reserved.
+ *
+ * Driver for NI Ettus Research USRP E3x0 Button Driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+
+static irqreturn_t e3x0_button_release_handler(int irq, void *data)
+{
+ struct input_dev *idev = data;
+
+ input_report_key(idev, KEY_POWER, 0);
+ input_sync(idev);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t e3x0_button_press_handler(int irq, void *data)
+{
+ struct input_dev *idev = data;
+
+ input_report_key(idev, KEY_POWER, 1);
+ pm_wakeup_event(idev->dev.parent, 0);
+ input_sync(idev);
+
+ return IRQ_HANDLED;
+}
+
+static int __maybe_unused e3x0_button_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(platform_get_irq_byname(pdev, "press"));
+
+ return 0;
+}
+
+static int __maybe_unused e3x0_button_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(platform_get_irq_byname(pdev, "press"));
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(e3x0_button_pm_ops,
+ e3x0_button_suspend, e3x0_button_resume);
+
+static int e3x0_button_probe(struct platform_device *pdev)
+{
+ struct input_dev *input;
+ int irq_press, irq_release;
+ int error;
+
+ irq_press = platform_get_irq_byname(pdev, "press");
+ if (irq_press < 0) {
+ dev_err(&pdev->dev, "No IRQ for 'press', error=%d\n",
+ irq_press);
+ return irq_press;
+ }
+
+ irq_release = platform_get_irq_byname(pdev, "release");
+ if (irq_release < 0) {
+ dev_err(&pdev->dev, "No IRQ for 'release', error=%d\n",
+ irq_release);
+ return irq_release;
+ }
+
+ input = devm_input_allocate_device(&pdev->dev);
+ if (!input)
+ return -ENOMEM;
+
+ input->name = "NI Ettus Research USRP E3x0 Button Driver";
+ input->phys = "e3x0_button/input0";
+ input->dev.parent = &pdev->dev;
+
+ input_set_capability(input, EV_KEY, KEY_POWER);
+
+ error = devm_request_irq(&pdev->dev, irq_press,
+ e3x0_button_press_handler, 0,
+ "e3x0-button", input);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to request 'press' IRQ#%d: %d\n",
+ irq_press, error);
+ return error;
+ }
+
+ error = devm_request_irq(&pdev->dev, irq_release,
+ e3x0_button_release_handler, 0,
+ "e3x0-button", input);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to request 'release' IRQ#%d: %d\n",
+ irq_release, error);
+ return error;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "Can't register input device: %d\n", error);
+ return error;
+ }
+
+ platform_set_drvdata(pdev, input);
+ device_init_wakeup(&pdev->dev, 1);
+ return 0;
+}
+
+static int e3x0_button_remove(struct platform_device *pdev)
+{
+ device_init_wakeup(&pdev->dev, 0);
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id e3x0_button_match[] = {
+ { .compatible = "ettus,e3x0-button", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, e3x0_button_match);
+#endif
+
+static struct platform_driver e3x0_button_driver = {
+ .driver = {
+ .name = "e3x0-button",
+ .of_match_table = of_match_ptr(e3x0_button_match),
+ .pm = &e3x0_button_pm_ops,
+ },
+ .probe = e3x0_button_probe,
+ .remove = e3x0_button_remove,
+};
+
+module_platform_driver(e3x0_button_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Moritz Fischer <moritz.fischer@ettus.com>");
+MODULE_DESCRIPTION("NI Ettus Research USRP E3x0 Button driver");
+MODULE_ALIAS("platform:e3x0-button");
diff --git a/kernel/drivers/input/misc/gp2ap002a00f.c b/kernel/drivers/input/misc/gp2ap002a00f.c
new file mode 100644
index 000000000..0ac176d66
--- /dev/null
+++ b/kernel/drivers/input/misc/gp2ap002a00f.c
@@ -0,0 +1,286 @@
+/*
+ * Copyright (C) 2011 Sony Ericsson Mobile Communications Inc.
+ *
+ * Author: Courtney Cavin <courtney.cavin@sonyericsson.com>
+ * Prepared for up-stream by: Oskar Andero <oskar.andero@sonyericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/input/gp2ap002a00f.h>
+
+struct gp2a_data {
+ struct input_dev *input;
+ const struct gp2a_platform_data *pdata;
+ struct i2c_client *i2c_client;
+};
+
+enum gp2a_addr {
+ GP2A_ADDR_PROX = 0x0,
+ GP2A_ADDR_GAIN = 0x1,
+ GP2A_ADDR_HYS = 0x2,
+ GP2A_ADDR_CYCLE = 0x3,
+ GP2A_ADDR_OPMOD = 0x4,
+ GP2A_ADDR_CON = 0x6
+};
+
+enum gp2a_controls {
+ /* Software Shutdown control: 0 = shutdown, 1 = normal operation */
+ GP2A_CTRL_SSD = 0x01
+};
+
+static int gp2a_report(struct gp2a_data *dt)
+{
+ int vo = gpio_get_value(dt->pdata->vout_gpio);
+
+ input_report_switch(dt->input, SW_FRONT_PROXIMITY, !vo);
+ input_sync(dt->input);
+
+ return 0;
+}
+
+static irqreturn_t gp2a_irq(int irq, void *handle)
+{
+ struct gp2a_data *dt = handle;
+
+ gp2a_report(dt);
+
+ return IRQ_HANDLED;
+}
+
+static int gp2a_enable(struct gp2a_data *dt)
+{
+ return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
+ GP2A_CTRL_SSD);
+}
+
+static int gp2a_disable(struct gp2a_data *dt)
+{
+ return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
+ 0x00);
+}
+
+static int gp2a_device_open(struct input_dev *dev)
+{
+ struct gp2a_data *dt = input_get_drvdata(dev);
+ int error;
+
+ error = gp2a_enable(dt);
+ if (error < 0) {
+ dev_err(&dt->i2c_client->dev,
+ "unable to activate, err %d\n", error);
+ return error;
+ }
+
+ gp2a_report(dt);
+
+ return 0;
+}
+
+static void gp2a_device_close(struct input_dev *dev)
+{
+ struct gp2a_data *dt = input_get_drvdata(dev);
+ int error;
+
+ error = gp2a_disable(dt);
+ if (error < 0)
+ dev_err(&dt->i2c_client->dev,
+ "unable to deactivate, err %d\n", error);
+}
+
+static int gp2a_initialize(struct gp2a_data *dt)
+{
+ int error;
+
+ error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_GAIN,
+ 0x08);
+ if (error < 0)
+ return error;
+
+ error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_HYS,
+ 0xc2);
+ if (error < 0)
+ return error;
+
+ error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_CYCLE,
+ 0x04);
+ if (error < 0)
+ return error;
+
+ error = gp2a_disable(dt);
+
+ return error;
+}
+
+static int gp2a_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct gp2a_platform_data *pdata = dev_get_platdata(&client->dev);
+ struct gp2a_data *dt;
+ int error;
+
+ if (!pdata)
+ return -EINVAL;
+
+ if (pdata->hw_setup) {
+ error = pdata->hw_setup(client);
+ if (error < 0)
+ return error;
+ }
+
+ error = gpio_request_one(pdata->vout_gpio, GPIOF_IN, GP2A_I2C_NAME);
+ if (error)
+ goto err_hw_shutdown;
+
+ dt = kzalloc(sizeof(struct gp2a_data), GFP_KERNEL);
+ if (!dt) {
+ error = -ENOMEM;
+ goto err_free_gpio;
+ }
+
+ dt->pdata = pdata;
+ dt->i2c_client = client;
+
+ error = gp2a_initialize(dt);
+ if (error < 0)
+ goto err_free_mem;
+
+ dt->input = input_allocate_device();
+ if (!dt->input) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ input_set_drvdata(dt->input, dt);
+
+ dt->input->open = gp2a_device_open;
+ dt->input->close = gp2a_device_close;
+ dt->input->name = GP2A_I2C_NAME;
+ dt->input->id.bustype = BUS_I2C;
+ dt->input->dev.parent = &client->dev;
+
+ input_set_capability(dt->input, EV_SW, SW_FRONT_PROXIMITY);
+
+ error = request_threaded_irq(client->irq, NULL, gp2a_irq,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ GP2A_I2C_NAME, dt);
+ if (error) {
+ dev_err(&client->dev, "irq request failed\n");
+ goto err_free_input_dev;
+ }
+
+ error = input_register_device(dt->input);
+ if (error) {
+ dev_err(&client->dev, "device registration failed\n");
+ goto err_free_irq;
+ }
+
+ device_init_wakeup(&client->dev, pdata->wakeup);
+ i2c_set_clientdata(client, dt);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, dt);
+err_free_input_dev:
+ input_free_device(dt->input);
+err_free_mem:
+ kfree(dt);
+err_free_gpio:
+ gpio_free(pdata->vout_gpio);
+err_hw_shutdown:
+ if (pdata->hw_shutdown)
+ pdata->hw_shutdown(client);
+ return error;
+}
+
+static int gp2a_remove(struct i2c_client *client)
+{
+ struct gp2a_data *dt = i2c_get_clientdata(client);
+ const struct gp2a_platform_data *pdata = dt->pdata;
+
+ device_init_wakeup(&client->dev, false);
+
+ free_irq(client->irq, dt);
+
+ input_unregister_device(dt->input);
+ kfree(dt);
+
+ gpio_free(pdata->vout_gpio);
+
+ if (pdata->hw_shutdown)
+ pdata->hw_shutdown(client);
+
+ return 0;
+}
+
+static int __maybe_unused gp2a_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gp2a_data *dt = i2c_get_clientdata(client);
+ int retval = 0;
+
+ if (device_may_wakeup(&client->dev)) {
+ enable_irq_wake(client->irq);
+ } else {
+ mutex_lock(&dt->input->mutex);
+ if (dt->input->users)
+ retval = gp2a_disable(dt);
+ mutex_unlock(&dt->input->mutex);
+ }
+
+ return retval;
+}
+
+static int __maybe_unused gp2a_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gp2a_data *dt = i2c_get_clientdata(client);
+ int retval = 0;
+
+ if (device_may_wakeup(&client->dev)) {
+ disable_irq_wake(client->irq);
+ } else {
+ mutex_lock(&dt->input->mutex);
+ if (dt->input->users)
+ retval = gp2a_enable(dt);
+ mutex_unlock(&dt->input->mutex);
+ }
+
+ return retval;
+}
+
+static SIMPLE_DEV_PM_OPS(gp2a_pm, gp2a_suspend, gp2a_resume);
+
+static const struct i2c_device_id gp2a_i2c_id[] = {
+ { GP2A_I2C_NAME, 0 },
+ { }
+};
+
+static struct i2c_driver gp2a_i2c_driver = {
+ .driver = {
+ .name = GP2A_I2C_NAME,
+ .owner = THIS_MODULE,
+ .pm = &gp2a_pm,
+ },
+ .probe = gp2a_probe,
+ .remove = gp2a_remove,
+ .id_table = gp2a_i2c_id,
+};
+
+module_i2c_driver(gp2a_i2c_driver);
+
+MODULE_AUTHOR("Courtney Cavin <courtney.cavin@sonyericsson.com>");
+MODULE_DESCRIPTION("Sharp GP2AP002A00F I2C Proximity/Opto sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/input/misc/gpio-beeper.c b/kernel/drivers/input/misc/gpio-beeper.c
new file mode 100644
index 000000000..4817c5f0c
--- /dev/null
+++ b/kernel/drivers/input/misc/gpio-beeper.c
@@ -0,0 +1,123 @@
+/*
+ * Generic GPIO beeper driver
+ *
+ * Copyright (C) 2013-2014 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/of.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+
+#define BEEPER_MODNAME "gpio-beeper"
+
+struct gpio_beeper {
+ struct work_struct work;
+ struct gpio_desc *desc;
+ bool beeping;
+};
+
+static void gpio_beeper_toggle(struct gpio_beeper *beep, bool on)
+{
+ gpiod_set_value_cansleep(beep->desc, on);
+}
+
+static void gpio_beeper_work(struct work_struct *work)
+{
+ struct gpio_beeper *beep = container_of(work, struct gpio_beeper, work);
+
+ gpio_beeper_toggle(beep, beep->beeping);
+}
+
+static int gpio_beeper_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+ struct gpio_beeper *beep = input_get_drvdata(dev);
+
+ if (type != EV_SND || code != SND_BELL)
+ return -ENOTSUPP;
+
+ if (value < 0)
+ return -EINVAL;
+
+ beep->beeping = value;
+ /* Schedule work to actually turn the beeper on or off */
+ schedule_work(&beep->work);
+
+ return 0;
+}
+
+static void gpio_beeper_close(struct input_dev *input)
+{
+ struct gpio_beeper *beep = input_get_drvdata(input);
+
+ cancel_work_sync(&beep->work);
+ gpio_beeper_toggle(beep, false);
+}
+
+static int gpio_beeper_probe(struct platform_device *pdev)
+{
+ struct gpio_beeper *beep;
+ struct input_dev *input;
+ int err;
+
+ beep = devm_kzalloc(&pdev->dev, sizeof(*beep), GFP_KERNEL);
+ if (!beep)
+ return -ENOMEM;
+
+ beep->desc = devm_gpiod_get(&pdev->dev, NULL);
+ if (IS_ERR(beep->desc))
+ return PTR_ERR(beep->desc);
+
+ input = devm_input_allocate_device(&pdev->dev);
+ if (!input)
+ return -ENOMEM;
+
+ INIT_WORK(&beep->work, gpio_beeper_work);
+
+ input->name = pdev->name;
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+ input->close = gpio_beeper_close;
+ input->event = gpio_beeper_event;
+
+ input_set_capability(input, EV_SND, SND_BELL);
+
+ err = gpiod_direction_output(beep->desc, 0);
+ if (err)
+ return err;
+
+ input_set_drvdata(input, beep);
+
+ return input_register_device(input);
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id gpio_beeper_of_match[] = {
+ { .compatible = BEEPER_MODNAME, },
+ { }
+};
+MODULE_DEVICE_TABLE(of, gpio_beeper_of_match);
+#endif
+
+static struct platform_driver gpio_beeper_platform_driver = {
+ .driver = {
+ .name = BEEPER_MODNAME,
+ .of_match_table = of_match_ptr(gpio_beeper_of_match),
+ },
+ .probe = gpio_beeper_probe,
+};
+module_platform_driver(gpio_beeper_platform_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
+MODULE_DESCRIPTION("Generic GPIO beeper driver");
diff --git a/kernel/drivers/input/misc/gpio_tilt_polled.c b/kernel/drivers/input/misc/gpio_tilt_polled.c
new file mode 100644
index 000000000..f103b99d1
--- /dev/null
+++ b/kernel/drivers/input/misc/gpio_tilt_polled.c
@@ -0,0 +1,210 @@
+/*
+ * Driver for tilt switches connected via GPIO lines
+ * not capable of generating interrupts
+ *
+ * Copyright (C) 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ * based on: drivers/input/keyboard/gpio_keys_polled.c
+ *
+ * Copyright (C) 2007-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2010 Nuno Goncalves <nunojpg@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/input/gpio_tilt.h>
+
+#define DRV_NAME "gpio-tilt-polled"
+
+struct gpio_tilt_polled_dev {
+ struct input_polled_dev *poll_dev;
+ struct device *dev;
+ const struct gpio_tilt_platform_data *pdata;
+
+ int last_state;
+
+ int threshold;
+ int count;
+};
+
+static void gpio_tilt_polled_poll(struct input_polled_dev *dev)
+{
+ struct gpio_tilt_polled_dev *tdev = dev->private;
+ const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+ struct input_dev *input = dev->input;
+ struct gpio_tilt_state *tilt_state = NULL;
+ int state, i;
+
+ if (tdev->count < tdev->threshold) {
+ tdev->count++;
+ } else {
+ state = 0;
+ for (i = 0; i < pdata->nr_gpios; i++)
+ state |= (!!gpio_get_value(pdata->gpios[i].gpio) << i);
+
+ if (state != tdev->last_state) {
+ for (i = 0; i < pdata->nr_states; i++)
+ if (pdata->states[i].gpios == state)
+ tilt_state = &pdata->states[i];
+
+ if (tilt_state) {
+ for (i = 0; i < pdata->nr_axes; i++)
+ input_report_abs(input,
+ pdata->axes[i].axis,
+ tilt_state->axes[i]);
+
+ input_sync(input);
+ }
+
+ tdev->count = 0;
+ tdev->last_state = state;
+ }
+ }
+}
+
+static void gpio_tilt_polled_open(struct input_polled_dev *dev)
+{
+ struct gpio_tilt_polled_dev *tdev = dev->private;
+ const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+
+ if (pdata->enable)
+ pdata->enable(tdev->dev);
+
+ /* report initial state of the axes */
+ tdev->last_state = -1;
+ tdev->count = tdev->threshold;
+ gpio_tilt_polled_poll(tdev->poll_dev);
+}
+
+static void gpio_tilt_polled_close(struct input_polled_dev *dev)
+{
+ struct gpio_tilt_polled_dev *tdev = dev->private;
+ const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+
+ if (pdata->disable)
+ pdata->disable(tdev->dev);
+}
+
+static int gpio_tilt_polled_probe(struct platform_device *pdev)
+{
+ const struct gpio_tilt_platform_data *pdata =
+ dev_get_platdata(&pdev->dev);
+ struct device *dev = &pdev->dev;
+ struct gpio_tilt_polled_dev *tdev;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ int error, i;
+
+ if (!pdata || !pdata->poll_interval)
+ return -EINVAL;
+
+ tdev = kzalloc(sizeof(struct gpio_tilt_polled_dev), GFP_KERNEL);
+ if (!tdev) {
+ dev_err(dev, "no memory for private data\n");
+ return -ENOMEM;
+ }
+
+ error = gpio_request_array(pdata->gpios, pdata->nr_gpios);
+ if (error) {
+ dev_err(dev,
+ "Could not request tilt GPIOs: %d\n", error);
+ goto err_free_tdev;
+ }
+
+ poll_dev = input_allocate_polled_device();
+ if (!poll_dev) {
+ dev_err(dev, "no memory for polled device\n");
+ error = -ENOMEM;
+ goto err_free_gpios;
+ }
+
+ poll_dev->private = tdev;
+ poll_dev->poll = gpio_tilt_polled_poll;
+ poll_dev->poll_interval = pdata->poll_interval;
+ poll_dev->open = gpio_tilt_polled_open;
+ poll_dev->close = gpio_tilt_polled_close;
+
+ input = poll_dev->input;
+
+ input->name = pdev->name;
+ input->phys = DRV_NAME"/input0";
+ input->dev.parent = &pdev->dev;
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ __set_bit(EV_ABS, input->evbit);
+ for (i = 0; i < pdata->nr_axes; i++)
+ input_set_abs_params(input, pdata->axes[i].axis,
+ pdata->axes[i].min, pdata->axes[i].max,
+ pdata->axes[i].fuzz, pdata->axes[i].flat);
+
+ tdev->threshold = DIV_ROUND_UP(pdata->debounce_interval,
+ pdata->poll_interval);
+
+ tdev->poll_dev = poll_dev;
+ tdev->dev = dev;
+ tdev->pdata = pdata;
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ dev_err(dev, "unable to register polled device, err=%d\n",
+ error);
+ goto err_free_polldev;
+ }
+
+ platform_set_drvdata(pdev, tdev);
+
+ return 0;
+
+err_free_polldev:
+ input_free_polled_device(poll_dev);
+err_free_gpios:
+ gpio_free_array(pdata->gpios, pdata->nr_gpios);
+err_free_tdev:
+ kfree(tdev);
+
+ return error;
+}
+
+static int gpio_tilt_polled_remove(struct platform_device *pdev)
+{
+ struct gpio_tilt_polled_dev *tdev = platform_get_drvdata(pdev);
+ const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+
+ input_unregister_polled_device(tdev->poll_dev);
+ input_free_polled_device(tdev->poll_dev);
+
+ gpio_free_array(pdata->gpios, pdata->nr_gpios);
+
+ kfree(tdev);
+
+ return 0;
+}
+
+static struct platform_driver gpio_tilt_polled_driver = {
+ .probe = gpio_tilt_polled_probe,
+ .remove = gpio_tilt_polled_remove,
+ .driver = {
+ .name = DRV_NAME,
+ },
+};
+
+module_platform_driver(gpio_tilt_polled_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_DESCRIPTION("Polled GPIO tilt driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/kernel/drivers/input/misc/hp_sdc_rtc.c b/kernel/drivers/input/misc/hp_sdc_rtc.c
new file mode 100644
index 000000000..45e0e3e55
--- /dev/null
+++ b/kernel/drivers/input/misc/hp_sdc_rtc.c
@@ -0,0 +1,733 @@
+/*
+ * HP i8042 SDC + MSM-58321 BBRTC driver.
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * System Device Controller Microprocessor Firmware Theory of Operation
+ * for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2
+ * efirtc.c by Stephane Eranian/Hewlett Packard
+ *
+ */
+
+#include <linux/hp_sdc.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/miscdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/poll.h>
+#include <linux/rtc.h>
+#include <linux/mutex.h>
+#include <linux/semaphore.h>
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION("HP i8042 SDC + MSM-58321 RTC Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+#define RTC_VERSION "1.10d"
+
+static DEFINE_MUTEX(hp_sdc_rtc_mutex);
+static unsigned long epoch = 2000;
+
+static struct semaphore i8042tregs;
+
+static hp_sdc_irqhook hp_sdc_rtc_isr;
+
+static struct fasync_struct *hp_sdc_rtc_async_queue;
+
+static DECLARE_WAIT_QUEUE_HEAD(hp_sdc_rtc_wait);
+
+static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos);
+
+static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg);
+
+static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait);
+
+static int hp_sdc_rtc_open(struct inode *inode, struct file *file);
+static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on);
+
+static void hp_sdc_rtc_isr (int irq, void *dev_id,
+ uint8_t status, uint8_t data)
+{
+ return;
+}
+
+static int hp_sdc_rtc_do_read_bbrtc (struct rtc_time *rtctm)
+{
+ struct semaphore tsem;
+ hp_sdc_transaction t;
+ uint8_t tseq[91];
+ int i;
+
+ i = 0;
+ while (i < 91) {
+ tseq[i++] = HP_SDC_ACT_DATAREG |
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN;
+ tseq[i++] = 0x01; /* write i8042[0x70] */
+ tseq[i] = i / 7; /* BBRTC reg address */
+ i++;
+ tseq[i++] = HP_SDC_CMD_DO_RTCR; /* Trigger command */
+ tseq[i++] = 2; /* expect 1 stat/dat pair back. */
+ i++; i++; /* buffer for stat/dat pair */
+ }
+ tseq[84] |= HP_SDC_ACT_SEMAPHORE;
+ t.endidx = 91;
+ t.seq = tseq;
+ t.act.semaphore = &tsem;
+ sema_init(&tsem, 0);
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+
+ /* Put ourselves to sleep for results. */
+ if (WARN_ON(down_interruptible(&tsem)))
+ return -1;
+
+ /* Check for nonpresence of BBRTC */
+ if (!((tseq[83] | tseq[90] | tseq[69] | tseq[76] |
+ tseq[55] | tseq[62] | tseq[34] | tseq[41] |
+ tseq[20] | tseq[27] | tseq[6] | tseq[13]) & 0x0f))
+ return -1;
+
+ memset(rtctm, 0, sizeof(struct rtc_time));
+ rtctm->tm_year = (tseq[83] & 0x0f) + (tseq[90] & 0x0f) * 10;
+ rtctm->tm_mon = (tseq[69] & 0x0f) + (tseq[76] & 0x0f) * 10;
+ rtctm->tm_mday = (tseq[55] & 0x0f) + (tseq[62] & 0x0f) * 10;
+ rtctm->tm_wday = (tseq[48] & 0x0f);
+ rtctm->tm_hour = (tseq[34] & 0x0f) + (tseq[41] & 0x0f) * 10;
+ rtctm->tm_min = (tseq[20] & 0x0f) + (tseq[27] & 0x0f) * 10;
+ rtctm->tm_sec = (tseq[6] & 0x0f) + (tseq[13] & 0x0f) * 10;
+
+ return 0;
+}
+
+static int hp_sdc_rtc_read_bbrtc (struct rtc_time *rtctm)
+{
+ struct rtc_time tm, tm_last;
+ int i = 0;
+
+ /* MSM-58321 has no read latch, so must read twice and compare. */
+
+ if (hp_sdc_rtc_do_read_bbrtc(&tm_last)) return -1;
+ if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
+
+ while (memcmp(&tm, &tm_last, sizeof(struct rtc_time))) {
+ if (i++ > 4) return -1;
+ memcpy(&tm_last, &tm, sizeof(struct rtc_time));
+ if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
+ }
+
+ memcpy(rtctm, &tm, sizeof(struct rtc_time));
+
+ return 0;
+}
+
+
+static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
+{
+ hp_sdc_transaction t;
+ uint8_t tseq[26] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ 0,
+ HP_SDC_CMD_READ_T1, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T2, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T3, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T4, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T5, 2, 0, 0
+ };
+
+ t.endidx = numreg * 5;
+
+ tseq[1] = loadcmd;
+ tseq[t.endidx - 4] |= HP_SDC_ACT_SEMAPHORE; /* numreg assumed > 1 */
+
+ t.seq = tseq;
+ t.act.semaphore = &i8042tregs;
+
+ /* Sleep if output regs in use. */
+ if (WARN_ON(down_interruptible(&i8042tregs)))
+ return -1;
+
+ if (hp_sdc_enqueue_transaction(&t)) {
+ up(&i8042tregs);
+ return -1;
+ }
+
+ /* Sleep until results come back. */
+ if (WARN_ON(down_interruptible(&i8042tregs)))
+ return -1;
+
+ up(&i8042tregs);
+
+ return (tseq[5] |
+ ((uint64_t)(tseq[10]) << 8) | ((uint64_t)(tseq[15]) << 16) |
+ ((uint64_t)(tseq[20]) << 24) | ((uint64_t)(tseq[25]) << 32));
+}
+
+
+/* Read the i8042 real-time clock */
+static inline int hp_sdc_rtc_read_rt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+ unsigned int days;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_RT, 5);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+ days = (unsigned int)(raw >> 24) & 0xffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100) + days * 86400;
+
+ return 0;
+}
+
+
+/* Read the i8042 fast handshake timer */
+static inline int hp_sdc_rtc_read_fhs(struct timeval *res) {
+ int64_t raw;
+ unsigned int tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_FHS, 2);
+ if (raw < 0) return -1;
+
+ tenms = (unsigned int)raw & 0xffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 match timer (a.k.a. alarm) */
+static inline int hp_sdc_rtc_read_mt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_MT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 delay timer */
+static inline int hp_sdc_rtc_read_dt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_DT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 cycle timer (a.k.a. periodic) */
+static inline int hp_sdc_rtc_read_ct(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_CT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+#if 0 /* not used yet */
+/* Set the i8042 real-time clock */
+static int hp_sdc_rtc_set_rt (struct timeval *setto)
+{
+ uint32_t tenms;
+ unsigned int days;
+ hp_sdc_transaction t;
+ uint8_t tseq[11] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_RTMS, 3, 0, 0, 0,
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_RTD, 2, 0, 0
+ };
+
+ t.endidx = 10;
+
+ if (0xffff < setto->tv_sec / 86400) return -1;
+ days = setto->tv_sec / 86400;
+ if (0xffff < setto->tv_usec / 1000000 / 86400) return -1;
+ days += ((setto->tv_sec % 86400) + setto->tv_usec / 1000000) / 86400;
+ if (days > 0xffff) return -1;
+
+ if (0xffffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffffff) return -1;
+
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+ tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
+
+ tseq[9] = (uint8_t)(days & 0xff);
+ tseq[10] = (uint8_t)((days >> 8) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+ return 0;
+}
+
+/* Set the i8042 fast handshake timer */
+static int hp_sdc_rtc_set_fhs (struct timeval *setto)
+{
+ uint32_t tenms;
+ hp_sdc_transaction t;
+ uint8_t tseq[5] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_FHS, 2, 0, 0
+ };
+
+ t.endidx = 4;
+
+ if (0xffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffff) return -1;
+
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+ return 0;
+}
+
+
+/* Set the i8042 match timer (a.k.a. alarm) */
+#define hp_sdc_rtc_set_mt (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_MT)
+
+/* Set the i8042 delay timer */
+#define hp_sdc_rtc_set_dt (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_DT)
+
+/* Set the i8042 cycle timer (a.k.a. periodic) */
+#define hp_sdc_rtc_set_ct (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_CT)
+
+/* Set one of the i8042 3-byte wide timers */
+static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
+{
+ uint32_t tenms;
+ hp_sdc_transaction t;
+ uint8_t tseq[6] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ 0, 3, 0, 0, 0
+ };
+
+ t.endidx = 6;
+
+ if (0xffffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffffff) return -1;
+
+ tseq[1] = setcmd;
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+ tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) {
+ return -1;
+ }
+ return 0;
+}
+#endif
+
+static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos) {
+ ssize_t retval;
+
+ if (count < sizeof(unsigned long))
+ return -EINVAL;
+
+ retval = put_user(68, (unsigned long __user *)buf);
+ return retval;
+}
+
+static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait)
+{
+ unsigned long l;
+
+ l = 0;
+ if (l != 0)
+ return POLLIN | POLLRDNORM;
+ return 0;
+}
+
+static int hp_sdc_rtc_open(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on)
+{
+ return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue);
+}
+
+static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v)
+{
+#define YN(bit) ("no")
+#define NY(bit) ("yes")
+ struct rtc_time tm;
+ struct timeval tv;
+
+ memset(&tm, 0, sizeof(struct rtc_time));
+
+ if (hp_sdc_rtc_read_bbrtc(&tm)) {
+ seq_puts(m, "BBRTC\t\t: READ FAILED!\n");
+ } else {
+ seq_printf(m,
+ "rtc_time\t: %02d:%02d:%02d\n"
+ "rtc_date\t: %04d-%02d-%02d\n"
+ "rtc_epoch\t: %04lu\n",
+ tm.tm_hour, tm.tm_min, tm.tm_sec,
+ tm.tm_year + 1900, tm.tm_mon + 1,
+ tm.tm_mday, epoch);
+ }
+
+ if (hp_sdc_rtc_read_rt(&tv)) {
+ seq_puts(m, "i8042 rtc\t: READ FAILED!\n");
+ } else {
+ seq_printf(m, "i8042 rtc\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_fhs(&tv)) {
+ seq_puts(m, "handshake\t: READ FAILED!\n");
+ } else {
+ seq_printf(m, "handshake\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_mt(&tv)) {
+ seq_puts(m, "alarm\t\t: READ FAILED!\n");
+ } else {
+ seq_printf(m, "alarm\t\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_dt(&tv)) {
+ seq_puts(m, "delay\t\t: READ FAILED!\n");
+ } else {
+ seq_printf(m, "delay\t\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_ct(&tv)) {
+ seq_puts(m, "periodic\t: READ FAILED!\n");
+ } else {
+ seq_printf(m, "periodic\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ seq_printf(m,
+ "DST_enable\t: %s\n"
+ "BCD\t\t: %s\n"
+ "24hr\t\t: %s\n"
+ "square_wave\t: %s\n"
+ "alarm_IRQ\t: %s\n"
+ "update_IRQ\t: %s\n"
+ "periodic_IRQ\t: %s\n"
+ "periodic_freq\t: %ld\n"
+ "batt_status\t: %s\n",
+ YN(RTC_DST_EN),
+ NY(RTC_DM_BINARY),
+ YN(RTC_24H),
+ YN(RTC_SQWE),
+ YN(RTC_AIE),
+ YN(RTC_UIE),
+ YN(RTC_PIE),
+ 1UL,
+ 1 ? "okay" : "dead");
+
+ return 0;
+#undef YN
+#undef NY
+}
+
+static int hp_sdc_rtc_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, hp_sdc_rtc_proc_show, NULL);
+}
+
+static const struct file_operations hp_sdc_rtc_proc_fops = {
+ .open = hp_sdc_rtc_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int hp_sdc_rtc_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+#if 1
+ return -EINVAL;
+#else
+
+ struct rtc_time wtime;
+ struct timeval ttime;
+ int use_wtime = 0;
+
+ /* This needs major work. */
+
+ switch (cmd) {
+
+ case RTC_AIE_OFF: /* Mask alarm int. enab. bit */
+ case RTC_AIE_ON: /* Allow alarm interrupts. */
+ case RTC_PIE_OFF: /* Mask periodic int. enab. bit */
+ case RTC_PIE_ON: /* Allow periodic ints */
+ case RTC_UIE_ON: /* Allow ints for RTC updates. */
+ case RTC_UIE_OFF: /* Allow ints for RTC updates. */
+ {
+ /* We cannot mask individual user timers and we
+ cannot tell them apart when they occur, so it
+ would be disingenuous to succeed these IOCTLs */
+ return -EINVAL;
+ }
+ case RTC_ALM_READ: /* Read the present alarm time */
+ {
+ if (hp_sdc_rtc_read_mt(&ttime)) return -EFAULT;
+ if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
+
+ wtime.tm_hour = ttime.tv_sec / 3600; ttime.tv_sec %= 3600;
+ wtime.tm_min = ttime.tv_sec / 60; ttime.tv_sec %= 60;
+ wtime.tm_sec = ttime.tv_sec;
+
+ break;
+ }
+ case RTC_IRQP_READ: /* Read the periodic IRQ rate. */
+ {
+ return put_user(hp_sdc_rtc_freq, (unsigned long *)arg);
+ }
+ case RTC_IRQP_SET: /* Set periodic IRQ rate. */
+ {
+ /*
+ * The max we can do is 100Hz.
+ */
+
+ if ((arg < 1) || (arg > 100)) return -EINVAL;
+ ttime.tv_sec = 0;
+ ttime.tv_usec = 1000000 / arg;
+ if (hp_sdc_rtc_set_ct(&ttime)) return -EFAULT;
+ hp_sdc_rtc_freq = arg;
+ return 0;
+ }
+ case RTC_ALM_SET: /* Store a time into the alarm */
+ {
+ /*
+ * This expects a struct hp_sdc_rtc_time. Writing 0xff means
+ * "don't care" or "match all" for PC timers. The HP SDC
+ * does not support that perk, but it could be emulated fairly
+ * easily. Only the tm_hour, tm_min and tm_sec are used.
+ * We could do it with 10ms accuracy with the HP SDC, if the
+ * rtc interface left us a way to do that.
+ */
+ struct hp_sdc_rtc_time alm_tm;
+
+ if (copy_from_user(&alm_tm, (struct hp_sdc_rtc_time*)arg,
+ sizeof(struct hp_sdc_rtc_time)))
+ return -EFAULT;
+
+ if (alm_tm.tm_hour > 23) return -EINVAL;
+ if (alm_tm.tm_min > 59) return -EINVAL;
+ if (alm_tm.tm_sec > 59) return -EINVAL;
+
+ ttime.sec = alm_tm.tm_hour * 3600 +
+ alm_tm.tm_min * 60 + alm_tm.tm_sec;
+ ttime.usec = 0;
+ if (hp_sdc_rtc_set_mt(&ttime)) return -EFAULT;
+ return 0;
+ }
+ case RTC_RD_TIME: /* Read the time/date from RTC */
+ {
+ if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
+ break;
+ }
+ case RTC_SET_TIME: /* Set the RTC */
+ {
+ struct rtc_time hp_sdc_rtc_tm;
+ unsigned char mon, day, hrs, min, sec, leap_yr;
+ unsigned int yrs;
+
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+ if (copy_from_user(&hp_sdc_rtc_tm, (struct rtc_time *)arg,
+ sizeof(struct rtc_time)))
+ return -EFAULT;
+
+ yrs = hp_sdc_rtc_tm.tm_year + 1900;
+ mon = hp_sdc_rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
+ day = hp_sdc_rtc_tm.tm_mday;
+ hrs = hp_sdc_rtc_tm.tm_hour;
+ min = hp_sdc_rtc_tm.tm_min;
+ sec = hp_sdc_rtc_tm.tm_sec;
+
+ if (yrs < 1970)
+ return -EINVAL;
+
+ leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
+
+ if ((mon > 12) || (day == 0))
+ return -EINVAL;
+ if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
+ return -EINVAL;
+ if ((hrs >= 24) || (min >= 60) || (sec >= 60))
+ return -EINVAL;
+
+ if ((yrs -= eH) > 255) /* They are unsigned */
+ return -EINVAL;
+
+
+ return 0;
+ }
+ case RTC_EPOCH_READ: /* Read the epoch. */
+ {
+ return put_user (epoch, (unsigned long *)arg);
+ }
+ case RTC_EPOCH_SET: /* Set the epoch. */
+ {
+ /*
+ * There were no RTC clocks before 1900.
+ */
+ if (arg < 1900)
+ return -EINVAL;
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+
+ epoch = arg;
+ return 0;
+ }
+ default:
+ return -EINVAL;
+ }
+ return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
+#endif
+}
+
+static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ mutex_lock(&hp_sdc_rtc_mutex);
+ ret = hp_sdc_rtc_ioctl(file, cmd, arg);
+ mutex_unlock(&hp_sdc_rtc_mutex);
+
+ return ret;
+}
+
+
+static const struct file_operations hp_sdc_rtc_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = hp_sdc_rtc_read,
+ .poll = hp_sdc_rtc_poll,
+ .unlocked_ioctl = hp_sdc_rtc_unlocked_ioctl,
+ .open = hp_sdc_rtc_open,
+ .fasync = hp_sdc_rtc_fasync,
+};
+
+static struct miscdevice hp_sdc_rtc_dev = {
+ .minor = RTC_MINOR,
+ .name = "rtc_HIL",
+ .fops = &hp_sdc_rtc_fops
+};
+
+static int __init hp_sdc_rtc_init(void)
+{
+ int ret;
+
+#ifdef __mc68000__
+ if (!MACH_IS_HP300)
+ return -ENODEV;
+#endif
+
+ sema_init(&i8042tregs, 1);
+
+ if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
+ return ret;
+ if (misc_register(&hp_sdc_rtc_dev) != 0)
+ printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n");
+
+ proc_create("driver/rtc", 0, NULL, &hp_sdc_rtc_proc_fops);
+
+ printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded "
+ "(RTC v " RTC_VERSION ")\n");
+
+ return 0;
+}
+
+static void __exit hp_sdc_rtc_exit(void)
+{
+ remove_proc_entry ("driver/rtc", NULL);
+ misc_deregister(&hp_sdc_rtc_dev);
+ hp_sdc_release_timer_irq(hp_sdc_rtc_isr);
+ printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support unloaded\n");
+}
+
+module_init(hp_sdc_rtc_init);
+module_exit(hp_sdc_rtc_exit);
diff --git a/kernel/drivers/input/misc/ideapad_slidebar.c b/kernel/drivers/input/misc/ideapad_slidebar.c
new file mode 100644
index 000000000..b0acb878d
--- /dev/null
+++ b/kernel/drivers/input/misc/ideapad_slidebar.c
@@ -0,0 +1,357 @@
+/*
+ * Input driver for slidebars on some Lenovo IdeaPad laptops
+ *
+ * Copyright (C) 2013 Andrey Moiseev <o2g.org.ru@gmail.com>
+ *
+ * Reverse-engineered from Lenovo SlideNav software (SBarHook.dll).
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+/*
+ * Currently tested and works on:
+ * Lenovo IdeaPad Y550
+ * Lenovo IdeaPad Y550P
+ *
+ * Other models can be added easily. To test,
+ * load with 'force' parameter set 'true'.
+ *
+ * LEDs blinking and input mode are managed via sysfs,
+ * (hex, unsigned byte value):
+ * /sys/devices/platform/ideapad_slidebar/slidebar_mode
+ *
+ * The value is in byte range, however, I only figured out
+ * how bits 0b10011001 work. Some other bits, probably,
+ * are meaningfull too.
+ *
+ * Possible states:
+ *
+ * STD_INT, ONMOV_INT, OFF_INT, LAST_POLL, OFF_POLL
+ *
+ * Meaning:
+ * released touched
+ * STD 'heartbeat' lights follow the finger
+ * ONMOV no lights lights follow the finger
+ * LAST at last pos lights follow the finger
+ * OFF no lights no lights
+ *
+ * INT all input events are generated, interrupts are used
+ * POLL no input events by default, to get them,
+ * send 0b10000000 (read below)
+ *
+ * Commands: write
+ *
+ * All | 0b01001 -> STD_INT
+ * possible | 0b10001 -> ONMOV_INT
+ * states | 0b01000 -> OFF_INT
+ *
+ * | 0b0 -> LAST_POLL
+ * STD_INT or ONMOV_INT |
+ * | 0b1 -> STD_INT
+ *
+ * | 0b0 -> OFF_POLL
+ * OFF_INT or OFF_POLL |
+ * | 0b1 -> OFF_INT
+ *
+ * Any state | 0b10000000 -> if the slidebar has updated data,
+ * produce one input event (last position),
+ * switch to respective POLL mode
+ * (like 0x0), if not in POLL mode yet.
+ *
+ * Get current state: read
+ *
+ * masked by 0x11 read value means:
+ *
+ * 0x00 LAST
+ * 0x01 STD
+ * 0x10 OFF
+ * 0x11 ONMOV
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/dmi.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/i8042.h>
+#include <linux/serio.h>
+
+#define IDEAPAD_BASE 0xff29
+
+static bool force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
+
+static DEFINE_SPINLOCK(io_lock);
+
+static struct input_dev *slidebar_input_dev;
+static struct platform_device *slidebar_platform_dev;
+
+static u8 slidebar_pos_get(void)
+{
+ u8 res;
+ unsigned long flags;
+
+ spin_lock_irqsave(&io_lock, flags);
+ outb(0xf4, 0xff29);
+ outb(0xbf, 0xff2a);
+ res = inb(0xff2b);
+ spin_unlock_irqrestore(&io_lock, flags);
+
+ return res;
+}
+
+static u8 slidebar_mode_get(void)
+{
+ u8 res;
+ unsigned long flags;
+
+ spin_lock_irqsave(&io_lock, flags);
+ outb(0xf7, 0xff29);
+ outb(0x8b, 0xff2a);
+ res = inb(0xff2b);
+ spin_unlock_irqrestore(&io_lock, flags);
+
+ return res;
+}
+
+static void slidebar_mode_set(u8 mode)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&io_lock, flags);
+ outb(0xf7, 0xff29);
+ outb(0x8b, 0xff2a);
+ outb(mode, 0xff2b);
+ spin_unlock_irqrestore(&io_lock, flags);
+}
+
+static bool slidebar_i8042_filter(unsigned char data, unsigned char str,
+ struct serio *port)
+{
+ static bool extended = false;
+
+ /* We are only interested in data coming form KBC port */
+ if (str & I8042_STR_AUXDATA)
+ return false;
+
+ /* Scancodes: e03b on move, e0bb on release. */
+ if (data == 0xe0) {
+ extended = true;
+ return true;
+ }
+
+ if (!extended)
+ return false;
+
+ extended = false;
+
+ if (likely((data & 0x7f) != 0x3b)) {
+ serio_interrupt(port, 0xe0, 0);
+ return false;
+ }
+
+ if (data & 0x80) {
+ input_report_key(slidebar_input_dev, BTN_TOUCH, 0);
+ } else {
+ input_report_key(slidebar_input_dev, BTN_TOUCH, 1);
+ input_report_abs(slidebar_input_dev, ABS_X, slidebar_pos_get());
+ }
+ input_sync(slidebar_input_dev);
+
+ return true;
+}
+
+static ssize_t show_slidebar_mode(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%x\n", slidebar_mode_get());
+}
+
+static ssize_t store_slidebar_mode(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ u8 mode;
+ int error;
+
+ error = kstrtou8(buf, 0, &mode);
+ if (error)
+ return error;
+
+ slidebar_mode_set(mode);
+
+ return count;
+}
+
+static DEVICE_ATTR(slidebar_mode, S_IWUSR | S_IRUGO,
+ show_slidebar_mode, store_slidebar_mode);
+
+static struct attribute *ideapad_attrs[] = {
+ &dev_attr_slidebar_mode.attr,
+ NULL
+};
+
+static struct attribute_group ideapad_attr_group = {
+ .attrs = ideapad_attrs
+};
+
+static const struct attribute_group *ideapad_attr_groups[] = {
+ &ideapad_attr_group,
+ NULL
+};
+
+static int __init ideapad_probe(struct platform_device* pdev)
+{
+ int err;
+
+ if (!request_region(IDEAPAD_BASE, 3, "ideapad_slidebar")) {
+ dev_err(&pdev->dev, "IO ports are busy\n");
+ return -EBUSY;
+ }
+
+ slidebar_input_dev = input_allocate_device();
+ if (!slidebar_input_dev) {
+ dev_err(&pdev->dev, "Failed to allocate input device\n");
+ err = -ENOMEM;
+ goto err_release_ports;
+ }
+
+ slidebar_input_dev->name = "IdeaPad Slidebar";
+ slidebar_input_dev->id.bustype = BUS_HOST;
+ slidebar_input_dev->dev.parent = &pdev->dev;
+ input_set_capability(slidebar_input_dev, EV_KEY, BTN_TOUCH);
+ input_set_capability(slidebar_input_dev, EV_ABS, ABS_X);
+ input_set_abs_params(slidebar_input_dev, ABS_X, 0, 0xff, 0, 0);
+
+ err = i8042_install_filter(slidebar_i8042_filter);
+ if (err) {
+ dev_err(&pdev->dev,
+ "Failed to install i8042 filter: %d\n", err);
+ goto err_free_dev;
+ }
+
+ err = input_register_device(slidebar_input_dev);
+ if (err) {
+ dev_err(&pdev->dev,
+ "Failed to register input device: %d\n", err);
+ goto err_remove_filter;
+ }
+
+ return 0;
+
+err_remove_filter:
+ i8042_remove_filter(slidebar_i8042_filter);
+err_free_dev:
+ input_free_device(slidebar_input_dev);
+err_release_ports:
+ release_region(IDEAPAD_BASE, 3);
+ return err;
+}
+
+static int ideapad_remove(struct platform_device *pdev)
+{
+ i8042_remove_filter(slidebar_i8042_filter);
+ input_unregister_device(slidebar_input_dev);
+ release_region(IDEAPAD_BASE, 3);
+
+ return 0;
+}
+
+static struct platform_driver slidebar_drv = {
+ .driver = {
+ .name = "ideapad_slidebar",
+ },
+ .remove = ideapad_remove,
+};
+
+static int __init ideapad_dmi_check(const struct dmi_system_id *id)
+{
+ pr_info("Laptop model '%s'\n", id->ident);
+ return 1;
+}
+
+static const struct dmi_system_id ideapad_dmi[] __initconst = {
+ {
+ .ident = "Lenovo IdeaPad Y550",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20017"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y550")
+ },
+ .callback = ideapad_dmi_check
+ },
+ {
+ .ident = "Lenovo IdeaPad Y550P",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20035"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y550P")
+ },
+ .callback = ideapad_dmi_check
+ },
+ { NULL, }
+};
+MODULE_DEVICE_TABLE(dmi, ideapad_dmi);
+
+static int __init slidebar_init(void)
+{
+ int err;
+
+ if (!force && !dmi_check_system(ideapad_dmi)) {
+ pr_err("DMI does not match\n");
+ return -ENODEV;
+ }
+
+ slidebar_platform_dev = platform_device_alloc("ideapad_slidebar", -1);
+ if (!slidebar_platform_dev) {
+ pr_err("Not enough memory\n");
+ return -ENOMEM;
+ }
+
+ slidebar_platform_dev->dev.groups = ideapad_attr_groups;
+
+ err = platform_device_add(slidebar_platform_dev);
+ if (err) {
+ pr_err("Failed to register platform device\n");
+ goto err_free_dev;
+ }
+
+ err = platform_driver_probe(&slidebar_drv, ideapad_probe);
+ if (err) {
+ pr_err("Failed to register platform driver\n");
+ goto err_delete_dev;
+ }
+
+ return 0;
+
+err_delete_dev:
+ platform_device_del(slidebar_platform_dev);
+err_free_dev:
+ platform_device_put(slidebar_platform_dev);
+ return err;
+}
+
+static void __exit slidebar_exit(void)
+{
+ platform_device_unregister(slidebar_platform_dev);
+ platform_driver_unregister(&slidebar_drv);
+}
+
+module_init(slidebar_init);
+module_exit(slidebar_exit);
+
+MODULE_AUTHOR("Andrey Moiseev <o2g.org.ru@gmail.com>");
+MODULE_DESCRIPTION("Slidebar input support for some Lenovo IdeaPad laptops");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/ims-pcu.c b/kernel/drivers/input/misc/ims-pcu.c
new file mode 100644
index 000000000..ac1fa5f44
--- /dev/null
+++ b/kernel/drivers/input/misc/ims-pcu.c
@@ -0,0 +1,2144 @@
+/*
+ * Driver for IMS Passenger Control Unit Devices
+ *
+ * Copyright (C) 2013 The IMS Company
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/completion.h>
+#include <linux/device.h>
+#include <linux/firmware.h>
+#include <linux/ihex.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/usb/input.h>
+#include <linux/usb/cdc.h>
+#include <asm/unaligned.h>
+
+#define IMS_PCU_KEYMAP_LEN 32
+
+struct ims_pcu_buttons {
+ struct input_dev *input;
+ char name[32];
+ char phys[32];
+ unsigned short keymap[IMS_PCU_KEYMAP_LEN];
+};
+
+struct ims_pcu_gamepad {
+ struct input_dev *input;
+ char name[32];
+ char phys[32];
+};
+
+struct ims_pcu_backlight {
+ struct led_classdev cdev;
+ struct work_struct work;
+ enum led_brightness desired_brightness;
+ char name[32];
+};
+
+#define IMS_PCU_PART_NUMBER_LEN 15
+#define IMS_PCU_SERIAL_NUMBER_LEN 8
+#define IMS_PCU_DOM_LEN 8
+#define IMS_PCU_FW_VERSION_LEN (9 + 1)
+#define IMS_PCU_BL_VERSION_LEN (9 + 1)
+#define IMS_PCU_BL_RESET_REASON_LEN (2 + 1)
+
+#define IMS_PCU_PCU_B_DEVICE_ID 5
+
+#define IMS_PCU_BUF_SIZE 128
+
+struct ims_pcu {
+ struct usb_device *udev;
+ struct device *dev; /* control interface's device, used for logging */
+
+ unsigned int device_no;
+
+ bool bootloader_mode;
+
+ char part_number[IMS_PCU_PART_NUMBER_LEN];
+ char serial_number[IMS_PCU_SERIAL_NUMBER_LEN];
+ char date_of_manufacturing[IMS_PCU_DOM_LEN];
+ char fw_version[IMS_PCU_FW_VERSION_LEN];
+ char bl_version[IMS_PCU_BL_VERSION_LEN];
+ char reset_reason[IMS_PCU_BL_RESET_REASON_LEN];
+ int update_firmware_status;
+ u8 device_id;
+
+ u8 ofn_reg_addr;
+
+ struct usb_interface *ctrl_intf;
+
+ struct usb_endpoint_descriptor *ep_ctrl;
+ struct urb *urb_ctrl;
+ u8 *urb_ctrl_buf;
+ dma_addr_t ctrl_dma;
+ size_t max_ctrl_size;
+
+ struct usb_interface *data_intf;
+
+ struct usb_endpoint_descriptor *ep_in;
+ struct urb *urb_in;
+ u8 *urb_in_buf;
+ dma_addr_t read_dma;
+ size_t max_in_size;
+
+ struct usb_endpoint_descriptor *ep_out;
+ u8 *urb_out_buf;
+ size_t max_out_size;
+
+ u8 read_buf[IMS_PCU_BUF_SIZE];
+ u8 read_pos;
+ u8 check_sum;
+ bool have_stx;
+ bool have_dle;
+
+ u8 cmd_buf[IMS_PCU_BUF_SIZE];
+ u8 ack_id;
+ u8 expected_response;
+ u8 cmd_buf_len;
+ struct completion cmd_done;
+ struct mutex cmd_mutex;
+
+ u32 fw_start_addr;
+ u32 fw_end_addr;
+ struct completion async_firmware_done;
+
+ struct ims_pcu_buttons buttons;
+ struct ims_pcu_gamepad *gamepad;
+ struct ims_pcu_backlight backlight;
+
+ bool setup_complete; /* Input and LED devices have been created */
+};
+
+
+/*********************************************************************
+ * Buttons Input device support *
+ *********************************************************************/
+
+static const unsigned short ims_pcu_keymap_1[] = {
+ [1] = KEY_ATTENDANT_OFF,
+ [2] = KEY_ATTENDANT_ON,
+ [3] = KEY_LIGHTS_TOGGLE,
+ [4] = KEY_VOLUMEUP,
+ [5] = KEY_VOLUMEDOWN,
+ [6] = KEY_INFO,
+};
+
+static const unsigned short ims_pcu_keymap_2[] = {
+ [4] = KEY_VOLUMEUP,
+ [5] = KEY_VOLUMEDOWN,
+ [6] = KEY_INFO,
+};
+
+static const unsigned short ims_pcu_keymap_3[] = {
+ [1] = KEY_HOMEPAGE,
+ [2] = KEY_ATTENDANT_TOGGLE,
+ [3] = KEY_LIGHTS_TOGGLE,
+ [4] = KEY_VOLUMEUP,
+ [5] = KEY_VOLUMEDOWN,
+ [6] = KEY_DISPLAYTOGGLE,
+ [18] = KEY_PLAYPAUSE,
+};
+
+static const unsigned short ims_pcu_keymap_4[] = {
+ [1] = KEY_ATTENDANT_OFF,
+ [2] = KEY_ATTENDANT_ON,
+ [3] = KEY_LIGHTS_TOGGLE,
+ [4] = KEY_VOLUMEUP,
+ [5] = KEY_VOLUMEDOWN,
+ [6] = KEY_INFO,
+ [18] = KEY_PLAYPAUSE,
+};
+
+static const unsigned short ims_pcu_keymap_5[] = {
+ [1] = KEY_ATTENDANT_OFF,
+ [2] = KEY_ATTENDANT_ON,
+ [3] = KEY_LIGHTS_TOGGLE,
+};
+
+struct ims_pcu_device_info {
+ const unsigned short *keymap;
+ size_t keymap_len;
+ bool has_gamepad;
+};
+
+#define IMS_PCU_DEVINFO(_n, _gamepad) \
+ [_n] = { \
+ .keymap = ims_pcu_keymap_##_n, \
+ .keymap_len = ARRAY_SIZE(ims_pcu_keymap_##_n), \
+ .has_gamepad = _gamepad, \
+ }
+
+static const struct ims_pcu_device_info ims_pcu_device_info[] = {
+ IMS_PCU_DEVINFO(1, true),
+ IMS_PCU_DEVINFO(2, true),
+ IMS_PCU_DEVINFO(3, true),
+ IMS_PCU_DEVINFO(4, true),
+ IMS_PCU_DEVINFO(5, false),
+};
+
+static void ims_pcu_buttons_report(struct ims_pcu *pcu, u32 data)
+{
+ struct ims_pcu_buttons *buttons = &pcu->buttons;
+ struct input_dev *input = buttons->input;
+ int i;
+
+ for (i = 0; i < 32; i++) {
+ unsigned short keycode = buttons->keymap[i];
+
+ if (keycode != KEY_RESERVED)
+ input_report_key(input, keycode, data & (1UL << i));
+ }
+
+ input_sync(input);
+}
+
+static int ims_pcu_setup_buttons(struct ims_pcu *pcu,
+ const unsigned short *keymap,
+ size_t keymap_len)
+{
+ struct ims_pcu_buttons *buttons = &pcu->buttons;
+ struct input_dev *input;
+ int i;
+ int error;
+
+ input = input_allocate_device();
+ if (!input) {
+ dev_err(pcu->dev,
+ "Not enough memory for input input device\n");
+ return -ENOMEM;
+ }
+
+ snprintf(buttons->name, sizeof(buttons->name),
+ "IMS PCU#%d Button Interface", pcu->device_no);
+
+ usb_make_path(pcu->udev, buttons->phys, sizeof(buttons->phys));
+ strlcat(buttons->phys, "/input0", sizeof(buttons->phys));
+
+ memcpy(buttons->keymap, keymap, sizeof(*keymap) * keymap_len);
+
+ input->name = buttons->name;
+ input->phys = buttons->phys;
+ usb_to_input_id(pcu->udev, &input->id);
+ input->dev.parent = &pcu->ctrl_intf->dev;
+
+ input->keycode = buttons->keymap;
+ input->keycodemax = ARRAY_SIZE(buttons->keymap);
+ input->keycodesize = sizeof(buttons->keymap[0]);
+
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < IMS_PCU_KEYMAP_LEN; i++)
+ __set_bit(buttons->keymap[i], input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to register buttons input device: %d\n",
+ error);
+ input_free_device(input);
+ return error;
+ }
+
+ buttons->input = input;
+ return 0;
+}
+
+static void ims_pcu_destroy_buttons(struct ims_pcu *pcu)
+{
+ struct ims_pcu_buttons *buttons = &pcu->buttons;
+
+ input_unregister_device(buttons->input);
+}
+
+
+/*********************************************************************
+ * Gamepad Input device support *
+ *********************************************************************/
+
+static void ims_pcu_gamepad_report(struct ims_pcu *pcu, u32 data)
+{
+ struct ims_pcu_gamepad *gamepad = pcu->gamepad;
+ struct input_dev *input = gamepad->input;
+ int x, y;
+
+ x = !!(data & (1 << 14)) - !!(data & (1 << 13));
+ y = !!(data & (1 << 12)) - !!(data & (1 << 11));
+
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+
+ input_report_key(input, BTN_A, data & (1 << 7));
+ input_report_key(input, BTN_B, data & (1 << 8));
+ input_report_key(input, BTN_X, data & (1 << 9));
+ input_report_key(input, BTN_Y, data & (1 << 10));
+ input_report_key(input, BTN_START, data & (1 << 15));
+ input_report_key(input, BTN_SELECT, data & (1 << 16));
+
+ input_sync(input);
+}
+
+static int ims_pcu_setup_gamepad(struct ims_pcu *pcu)
+{
+ struct ims_pcu_gamepad *gamepad;
+ struct input_dev *input;
+ int error;
+
+ gamepad = kzalloc(sizeof(struct ims_pcu_gamepad), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!gamepad || !input) {
+ dev_err(pcu->dev,
+ "Not enough memory for gamepad device\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ gamepad->input = input;
+
+ snprintf(gamepad->name, sizeof(gamepad->name),
+ "IMS PCU#%d Gamepad Interface", pcu->device_no);
+
+ usb_make_path(pcu->udev, gamepad->phys, sizeof(gamepad->phys));
+ strlcat(gamepad->phys, "/input1", sizeof(gamepad->phys));
+
+ input->name = gamepad->name;
+ input->phys = gamepad->phys;
+ usb_to_input_id(pcu->udev, &input->id);
+ input->dev.parent = &pcu->ctrl_intf->dev;
+
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(BTN_A, input->keybit);
+ __set_bit(BTN_B, input->keybit);
+ __set_bit(BTN_X, input->keybit);
+ __set_bit(BTN_Y, input->keybit);
+ __set_bit(BTN_START, input->keybit);
+ __set_bit(BTN_SELECT, input->keybit);
+
+ __set_bit(EV_ABS, input->evbit);
+ input_set_abs_params(input, ABS_X, -1, 1, 0, 0);
+ input_set_abs_params(input, ABS_Y, -1, 1, 0, 0);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to register gamepad input device: %d\n",
+ error);
+ goto err_free_mem;
+ }
+
+ pcu->gamepad = gamepad;
+ return 0;
+
+err_free_mem:
+ input_free_device(input);
+ kfree(gamepad);
+ return -ENOMEM;
+}
+
+static void ims_pcu_destroy_gamepad(struct ims_pcu *pcu)
+{
+ struct ims_pcu_gamepad *gamepad = pcu->gamepad;
+
+ input_unregister_device(gamepad->input);
+ kfree(gamepad);
+}
+
+
+/*********************************************************************
+ * PCU Communication protocol handling *
+ *********************************************************************/
+
+#define IMS_PCU_PROTOCOL_STX 0x02
+#define IMS_PCU_PROTOCOL_ETX 0x03
+#define IMS_PCU_PROTOCOL_DLE 0x10
+
+/* PCU commands */
+#define IMS_PCU_CMD_STATUS 0xa0
+#define IMS_PCU_CMD_PCU_RESET 0xa1
+#define IMS_PCU_CMD_RESET_REASON 0xa2
+#define IMS_PCU_CMD_SEND_BUTTONS 0xa3
+#define IMS_PCU_CMD_JUMP_TO_BTLDR 0xa4
+#define IMS_PCU_CMD_GET_INFO 0xa5
+#define IMS_PCU_CMD_SET_BRIGHTNESS 0xa6
+#define IMS_PCU_CMD_EEPROM 0xa7
+#define IMS_PCU_CMD_GET_FW_VERSION 0xa8
+#define IMS_PCU_CMD_GET_BL_VERSION 0xa9
+#define IMS_PCU_CMD_SET_INFO 0xab
+#define IMS_PCU_CMD_GET_BRIGHTNESS 0xac
+#define IMS_PCU_CMD_GET_DEVICE_ID 0xae
+#define IMS_PCU_CMD_SPECIAL_INFO 0xb0
+#define IMS_PCU_CMD_BOOTLOADER 0xb1 /* Pass data to bootloader */
+#define IMS_PCU_CMD_OFN_SET_CONFIG 0xb3
+#define IMS_PCU_CMD_OFN_GET_CONFIG 0xb4
+
+/* PCU responses */
+#define IMS_PCU_RSP_STATUS 0xc0
+#define IMS_PCU_RSP_PCU_RESET 0 /* Originally 0xc1 */
+#define IMS_PCU_RSP_RESET_REASON 0xc2
+#define IMS_PCU_RSP_SEND_BUTTONS 0xc3
+#define IMS_PCU_RSP_JUMP_TO_BTLDR 0 /* Originally 0xc4 */
+#define IMS_PCU_RSP_GET_INFO 0xc5
+#define IMS_PCU_RSP_SET_BRIGHTNESS 0xc6
+#define IMS_PCU_RSP_EEPROM 0xc7
+#define IMS_PCU_RSP_GET_FW_VERSION 0xc8
+#define IMS_PCU_RSP_GET_BL_VERSION 0xc9
+#define IMS_PCU_RSP_SET_INFO 0xcb
+#define IMS_PCU_RSP_GET_BRIGHTNESS 0xcc
+#define IMS_PCU_RSP_CMD_INVALID 0xcd
+#define IMS_PCU_RSP_GET_DEVICE_ID 0xce
+#define IMS_PCU_RSP_SPECIAL_INFO 0xd0
+#define IMS_PCU_RSP_BOOTLOADER 0xd1 /* Bootloader response */
+#define IMS_PCU_RSP_OFN_SET_CONFIG 0xd2
+#define IMS_PCU_RSP_OFN_GET_CONFIG 0xd3
+
+
+#define IMS_PCU_RSP_EVNT_BUTTONS 0xe0 /* Unsolicited, button state */
+#define IMS_PCU_GAMEPAD_MASK 0x0001ff80UL /* Bits 7 through 16 */
+
+
+#define IMS_PCU_MIN_PACKET_LEN 3
+#define IMS_PCU_DATA_OFFSET 2
+
+#define IMS_PCU_CMD_WRITE_TIMEOUT 100 /* msec */
+#define IMS_PCU_CMD_RESPONSE_TIMEOUT 500 /* msec */
+
+static void ims_pcu_report_events(struct ims_pcu *pcu)
+{
+ u32 data = get_unaligned_be32(&pcu->read_buf[3]);
+
+ ims_pcu_buttons_report(pcu, data & ~IMS_PCU_GAMEPAD_MASK);
+ if (pcu->gamepad)
+ ims_pcu_gamepad_report(pcu, data);
+}
+
+static void ims_pcu_handle_response(struct ims_pcu *pcu)
+{
+ switch (pcu->read_buf[0]) {
+ case IMS_PCU_RSP_EVNT_BUTTONS:
+ if (likely(pcu->setup_complete))
+ ims_pcu_report_events(pcu);
+ break;
+
+ default:
+ /*
+ * See if we got command completion.
+ * If both the sequence and response code match save
+ * the data and signal completion.
+ */
+ if (pcu->read_buf[0] == pcu->expected_response &&
+ pcu->read_buf[1] == pcu->ack_id - 1) {
+
+ memcpy(pcu->cmd_buf, pcu->read_buf, pcu->read_pos);
+ pcu->cmd_buf_len = pcu->read_pos;
+ complete(&pcu->cmd_done);
+ }
+ break;
+ }
+}
+
+static void ims_pcu_process_data(struct ims_pcu *pcu, struct urb *urb)
+{
+ int i;
+
+ for (i = 0; i < urb->actual_length; i++) {
+ u8 data = pcu->urb_in_buf[i];
+
+ /* Skip everything until we get Start Xmit */
+ if (!pcu->have_stx && data != IMS_PCU_PROTOCOL_STX)
+ continue;
+
+ if (pcu->have_dle) {
+ pcu->have_dle = false;
+ pcu->read_buf[pcu->read_pos++] = data;
+ pcu->check_sum += data;
+ continue;
+ }
+
+ switch (data) {
+ case IMS_PCU_PROTOCOL_STX:
+ if (pcu->have_stx)
+ dev_warn(pcu->dev,
+ "Unexpected STX at byte %d, discarding old data\n",
+ pcu->read_pos);
+ pcu->have_stx = true;
+ pcu->have_dle = false;
+ pcu->read_pos = 0;
+ pcu->check_sum = 0;
+ break;
+
+ case IMS_PCU_PROTOCOL_DLE:
+ pcu->have_dle = true;
+ break;
+
+ case IMS_PCU_PROTOCOL_ETX:
+ if (pcu->read_pos < IMS_PCU_MIN_PACKET_LEN) {
+ dev_warn(pcu->dev,
+ "Short packet received (%d bytes), ignoring\n",
+ pcu->read_pos);
+ } else if (pcu->check_sum != 0) {
+ dev_warn(pcu->dev,
+ "Invalid checksum in packet (%d bytes), ignoring\n",
+ pcu->read_pos);
+ } else {
+ ims_pcu_handle_response(pcu);
+ }
+
+ pcu->have_stx = false;
+ pcu->have_dle = false;
+ pcu->read_pos = 0;
+ break;
+
+ default:
+ pcu->read_buf[pcu->read_pos++] = data;
+ pcu->check_sum += data;
+ break;
+ }
+ }
+}
+
+static bool ims_pcu_byte_needs_escape(u8 byte)
+{
+ return byte == IMS_PCU_PROTOCOL_STX ||
+ byte == IMS_PCU_PROTOCOL_ETX ||
+ byte == IMS_PCU_PROTOCOL_DLE;
+}
+
+static int ims_pcu_send_cmd_chunk(struct ims_pcu *pcu,
+ u8 command, int chunk, int len)
+{
+ int error;
+
+ error = usb_bulk_msg(pcu->udev,
+ usb_sndbulkpipe(pcu->udev,
+ pcu->ep_out->bEndpointAddress),
+ pcu->urb_out_buf, len,
+ NULL, IMS_PCU_CMD_WRITE_TIMEOUT);
+ if (error < 0) {
+ dev_dbg(pcu->dev,
+ "Sending 0x%02x command failed at chunk %d: %d\n",
+ command, chunk, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int ims_pcu_send_command(struct ims_pcu *pcu,
+ u8 command, const u8 *data, int len)
+{
+ int count = 0;
+ int chunk = 0;
+ int delta;
+ int i;
+ int error;
+ u8 csum = 0;
+ u8 ack_id;
+
+ pcu->urb_out_buf[count++] = IMS_PCU_PROTOCOL_STX;
+
+ /* We know the command need not be escaped */
+ pcu->urb_out_buf[count++] = command;
+ csum += command;
+
+ ack_id = pcu->ack_id++;
+ if (ack_id == 0xff)
+ ack_id = pcu->ack_id++;
+
+ if (ims_pcu_byte_needs_escape(ack_id))
+ pcu->urb_out_buf[count++] = IMS_PCU_PROTOCOL_DLE;
+
+ pcu->urb_out_buf[count++] = ack_id;
+ csum += ack_id;
+
+ for (i = 0; i < len; i++) {
+
+ delta = ims_pcu_byte_needs_escape(data[i]) ? 2 : 1;
+ if (count + delta >= pcu->max_out_size) {
+ error = ims_pcu_send_cmd_chunk(pcu, command,
+ ++chunk, count);
+ if (error)
+ return error;
+
+ count = 0;
+ }
+
+ if (delta == 2)
+ pcu->urb_out_buf[count++] = IMS_PCU_PROTOCOL_DLE;
+
+ pcu->urb_out_buf[count++] = data[i];
+ csum += data[i];
+ }
+
+ csum = 1 + ~csum;
+
+ delta = ims_pcu_byte_needs_escape(csum) ? 3 : 2;
+ if (count + delta >= pcu->max_out_size) {
+ error = ims_pcu_send_cmd_chunk(pcu, command, ++chunk, count);
+ if (error)
+ return error;
+
+ count = 0;
+ }
+
+ if (delta == 3)
+ pcu->urb_out_buf[count++] = IMS_PCU_PROTOCOL_DLE;
+
+ pcu->urb_out_buf[count++] = csum;
+ pcu->urb_out_buf[count++] = IMS_PCU_PROTOCOL_ETX;
+
+ return ims_pcu_send_cmd_chunk(pcu, command, ++chunk, count);
+}
+
+static int __ims_pcu_execute_command(struct ims_pcu *pcu,
+ u8 command, const void *data, size_t len,
+ u8 expected_response, int response_time)
+{
+ int error;
+
+ pcu->expected_response = expected_response;
+ init_completion(&pcu->cmd_done);
+
+ error = ims_pcu_send_command(pcu, command, data, len);
+ if (error)
+ return error;
+
+ if (expected_response &&
+ !wait_for_completion_timeout(&pcu->cmd_done,
+ msecs_to_jiffies(response_time))) {
+ dev_dbg(pcu->dev, "Command 0x%02x timed out\n", command);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+#define ims_pcu_execute_command(pcu, code, data, len) \
+ __ims_pcu_execute_command(pcu, \
+ IMS_PCU_CMD_##code, data, len, \
+ IMS_PCU_RSP_##code, \
+ IMS_PCU_CMD_RESPONSE_TIMEOUT)
+
+#define ims_pcu_execute_query(pcu, code) \
+ ims_pcu_execute_command(pcu, code, NULL, 0)
+
+/* Bootloader commands */
+#define IMS_PCU_BL_CMD_QUERY_DEVICE 0xa1
+#define IMS_PCU_BL_CMD_UNLOCK_CONFIG 0xa2
+#define IMS_PCU_BL_CMD_ERASE_APP 0xa3
+#define IMS_PCU_BL_CMD_PROGRAM_DEVICE 0xa4
+#define IMS_PCU_BL_CMD_PROGRAM_COMPLETE 0xa5
+#define IMS_PCU_BL_CMD_READ_APP 0xa6
+#define IMS_PCU_BL_CMD_RESET_DEVICE 0xa7
+#define IMS_PCU_BL_CMD_LAUNCH_APP 0xa8
+
+/* Bootloader commands */
+#define IMS_PCU_BL_RSP_QUERY_DEVICE 0xc1
+#define IMS_PCU_BL_RSP_UNLOCK_CONFIG 0xc2
+#define IMS_PCU_BL_RSP_ERASE_APP 0xc3
+#define IMS_PCU_BL_RSP_PROGRAM_DEVICE 0xc4
+#define IMS_PCU_BL_RSP_PROGRAM_COMPLETE 0xc5
+#define IMS_PCU_BL_RSP_READ_APP 0xc6
+#define IMS_PCU_BL_RSP_RESET_DEVICE 0 /* originally 0xa7 */
+#define IMS_PCU_BL_RSP_LAUNCH_APP 0 /* originally 0xa8 */
+
+#define IMS_PCU_BL_DATA_OFFSET 3
+
+static int __ims_pcu_execute_bl_command(struct ims_pcu *pcu,
+ u8 command, const void *data, size_t len,
+ u8 expected_response, int response_time)
+{
+ int error;
+
+ pcu->cmd_buf[0] = command;
+ if (data)
+ memcpy(&pcu->cmd_buf[1], data, len);
+
+ error = __ims_pcu_execute_command(pcu,
+ IMS_PCU_CMD_BOOTLOADER, pcu->cmd_buf, len + 1,
+ expected_response ? IMS_PCU_RSP_BOOTLOADER : 0,
+ response_time);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failure when sending 0x%02x command to bootloader, error: %d\n",
+ pcu->cmd_buf[0], error);
+ return error;
+ }
+
+ if (expected_response && pcu->cmd_buf[2] != expected_response) {
+ dev_err(pcu->dev,
+ "Unexpected response from bootloader: 0x%02x, wanted 0x%02x\n",
+ pcu->cmd_buf[2], expected_response);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+#define ims_pcu_execute_bl_command(pcu, code, data, len, timeout) \
+ __ims_pcu_execute_bl_command(pcu, \
+ IMS_PCU_BL_CMD_##code, data, len, \
+ IMS_PCU_BL_RSP_##code, timeout) \
+
+#define IMS_PCU_INFO_PART_OFFSET 2
+#define IMS_PCU_INFO_DOM_OFFSET 17
+#define IMS_PCU_INFO_SERIAL_OFFSET 25
+
+#define IMS_PCU_SET_INFO_SIZE 31
+
+static int ims_pcu_get_info(struct ims_pcu *pcu)
+{
+ int error;
+
+ error = ims_pcu_execute_query(pcu, GET_INFO);
+ if (error) {
+ dev_err(pcu->dev,
+ "GET_INFO command failed, error: %d\n", error);
+ return error;
+ }
+
+ memcpy(pcu->part_number,
+ &pcu->cmd_buf[IMS_PCU_INFO_PART_OFFSET],
+ sizeof(pcu->part_number));
+ memcpy(pcu->date_of_manufacturing,
+ &pcu->cmd_buf[IMS_PCU_INFO_DOM_OFFSET],
+ sizeof(pcu->date_of_manufacturing));
+ memcpy(pcu->serial_number,
+ &pcu->cmd_buf[IMS_PCU_INFO_SERIAL_OFFSET],
+ sizeof(pcu->serial_number));
+
+ return 0;
+}
+
+static int ims_pcu_set_info(struct ims_pcu *pcu)
+{
+ int error;
+
+ memcpy(&pcu->cmd_buf[IMS_PCU_INFO_PART_OFFSET],
+ pcu->part_number, sizeof(pcu->part_number));
+ memcpy(&pcu->cmd_buf[IMS_PCU_INFO_DOM_OFFSET],
+ pcu->date_of_manufacturing, sizeof(pcu->date_of_manufacturing));
+ memcpy(&pcu->cmd_buf[IMS_PCU_INFO_SERIAL_OFFSET],
+ pcu->serial_number, sizeof(pcu->serial_number));
+
+ error = ims_pcu_execute_command(pcu, SET_INFO,
+ &pcu->cmd_buf[IMS_PCU_DATA_OFFSET],
+ IMS_PCU_SET_INFO_SIZE);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to update device information, error: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int ims_pcu_switch_to_bootloader(struct ims_pcu *pcu)
+{
+ int error;
+
+ /* Execute jump to the bootoloader */
+ error = ims_pcu_execute_command(pcu, JUMP_TO_BTLDR, NULL, 0);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failure when sending JUMP TO BOOLTLOADER command, error: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+/*********************************************************************
+ * Firmware Update handling *
+ *********************************************************************/
+
+#define IMS_PCU_FIRMWARE_NAME "imspcu.fw"
+
+struct ims_pcu_flash_fmt {
+ __le32 addr;
+ u8 len;
+ u8 data[];
+};
+
+static unsigned int ims_pcu_count_fw_records(const struct firmware *fw)
+{
+ const struct ihex_binrec *rec = (const struct ihex_binrec *)fw->data;
+ unsigned int count = 0;
+
+ while (rec) {
+ count++;
+ rec = ihex_next_binrec(rec);
+ }
+
+ return count;
+}
+
+static int ims_pcu_verify_block(struct ims_pcu *pcu,
+ u32 addr, u8 len, const u8 *data)
+{
+ struct ims_pcu_flash_fmt *fragment;
+ int error;
+
+ fragment = (void *)&pcu->cmd_buf[1];
+ put_unaligned_le32(addr, &fragment->addr);
+ fragment->len = len;
+
+ error = ims_pcu_execute_bl_command(pcu, READ_APP, NULL, 5,
+ IMS_PCU_CMD_RESPONSE_TIMEOUT);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to retrieve block at 0x%08x, len %d, error: %d\n",
+ addr, len, error);
+ return error;
+ }
+
+ fragment = (void *)&pcu->cmd_buf[IMS_PCU_BL_DATA_OFFSET];
+ if (get_unaligned_le32(&fragment->addr) != addr ||
+ fragment->len != len) {
+ dev_err(pcu->dev,
+ "Wrong block when retrieving 0x%08x (0x%08x), len %d (%d)\n",
+ addr, get_unaligned_le32(&fragment->addr),
+ len, fragment->len);
+ return -EINVAL;
+ }
+
+ if (memcmp(fragment->data, data, len)) {
+ dev_err(pcu->dev,
+ "Mismatch in block at 0x%08x, len %d\n",
+ addr, len);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ims_pcu_flash_firmware(struct ims_pcu *pcu,
+ const struct firmware *fw,
+ unsigned int n_fw_records)
+{
+ const struct ihex_binrec *rec = (const struct ihex_binrec *)fw->data;
+ struct ims_pcu_flash_fmt *fragment;
+ unsigned int count = 0;
+ u32 addr;
+ u8 len;
+ int error;
+
+ error = ims_pcu_execute_bl_command(pcu, ERASE_APP, NULL, 0, 2000);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to erase application image, error: %d\n",
+ error);
+ return error;
+ }
+
+ while (rec) {
+ /*
+ * The firmware format is messed up for some reason.
+ * The address twice that of what is needed for some
+ * reason and we end up overwriting half of the data
+ * with the next record.
+ */
+ addr = be32_to_cpu(rec->addr) / 2;
+ len = be16_to_cpu(rec->len);
+
+ fragment = (void *)&pcu->cmd_buf[1];
+ put_unaligned_le32(addr, &fragment->addr);
+ fragment->len = len;
+ memcpy(fragment->data, rec->data, len);
+
+ error = ims_pcu_execute_bl_command(pcu, PROGRAM_DEVICE,
+ NULL, len + 5,
+ IMS_PCU_CMD_RESPONSE_TIMEOUT);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to write block at 0x%08x, len %d, error: %d\n",
+ addr, len, error);
+ return error;
+ }
+
+ if (addr >= pcu->fw_start_addr && addr < pcu->fw_end_addr) {
+ error = ims_pcu_verify_block(pcu, addr, len, rec->data);
+ if (error)
+ return error;
+ }
+
+ count++;
+ pcu->update_firmware_status = (count * 100) / n_fw_records;
+
+ rec = ihex_next_binrec(rec);
+ }
+
+ error = ims_pcu_execute_bl_command(pcu, PROGRAM_COMPLETE,
+ NULL, 0, 2000);
+ if (error)
+ dev_err(pcu->dev,
+ "Failed to send PROGRAM_COMPLETE, error: %d\n",
+ error);
+
+ return 0;
+}
+
+static int ims_pcu_handle_firmware_update(struct ims_pcu *pcu,
+ const struct firmware *fw)
+{
+ unsigned int n_fw_records;
+ int retval;
+
+ dev_info(pcu->dev, "Updating firmware %s, size: %zu\n",
+ IMS_PCU_FIRMWARE_NAME, fw->size);
+
+ n_fw_records = ims_pcu_count_fw_records(fw);
+
+ retval = ims_pcu_flash_firmware(pcu, fw, n_fw_records);
+ if (retval)
+ goto out;
+
+ retval = ims_pcu_execute_bl_command(pcu, LAUNCH_APP, NULL, 0, 0);
+ if (retval)
+ dev_err(pcu->dev,
+ "Failed to start application image, error: %d\n",
+ retval);
+
+out:
+ pcu->update_firmware_status = retval;
+ sysfs_notify(&pcu->dev->kobj, NULL, "update_firmware_status");
+ return retval;
+}
+
+static void ims_pcu_process_async_firmware(const struct firmware *fw,
+ void *context)
+{
+ struct ims_pcu *pcu = context;
+ int error;
+
+ if (!fw) {
+ dev_err(pcu->dev, "Failed to get firmware %s\n",
+ IMS_PCU_FIRMWARE_NAME);
+ goto out;
+ }
+
+ error = ihex_validate_fw(fw);
+ if (error) {
+ dev_err(pcu->dev, "Firmware %s is invalid\n",
+ IMS_PCU_FIRMWARE_NAME);
+ goto out;
+ }
+
+ mutex_lock(&pcu->cmd_mutex);
+ ims_pcu_handle_firmware_update(pcu, fw);
+ mutex_unlock(&pcu->cmd_mutex);
+
+ release_firmware(fw);
+
+out:
+ complete(&pcu->async_firmware_done);
+}
+
+/*********************************************************************
+ * Backlight LED device support *
+ *********************************************************************/
+
+#define IMS_PCU_MAX_BRIGHTNESS 31998
+
+static void ims_pcu_backlight_work(struct work_struct *work)
+{
+ struct ims_pcu_backlight *backlight =
+ container_of(work, struct ims_pcu_backlight, work);
+ struct ims_pcu *pcu =
+ container_of(backlight, struct ims_pcu, backlight);
+ int desired_brightness = backlight->desired_brightness;
+ __le16 br_val = cpu_to_le16(desired_brightness);
+ int error;
+
+ mutex_lock(&pcu->cmd_mutex);
+
+ error = ims_pcu_execute_command(pcu, SET_BRIGHTNESS,
+ &br_val, sizeof(br_val));
+ if (error && error != -ENODEV)
+ dev_warn(pcu->dev,
+ "Failed to set desired brightness %u, error: %d\n",
+ desired_brightness, error);
+
+ mutex_unlock(&pcu->cmd_mutex);
+}
+
+static void ims_pcu_backlight_set_brightness(struct led_classdev *cdev,
+ enum led_brightness value)
+{
+ struct ims_pcu_backlight *backlight =
+ container_of(cdev, struct ims_pcu_backlight, cdev);
+
+ backlight->desired_brightness = value;
+ schedule_work(&backlight->work);
+}
+
+static enum led_brightness
+ims_pcu_backlight_get_brightness(struct led_classdev *cdev)
+{
+ struct ims_pcu_backlight *backlight =
+ container_of(cdev, struct ims_pcu_backlight, cdev);
+ struct ims_pcu *pcu =
+ container_of(backlight, struct ims_pcu, backlight);
+ int brightness;
+ int error;
+
+ mutex_lock(&pcu->cmd_mutex);
+
+ error = ims_pcu_execute_query(pcu, GET_BRIGHTNESS);
+ if (error) {
+ dev_warn(pcu->dev,
+ "Failed to get current brightness, error: %d\n",
+ error);
+ /* Assume the LED is OFF */
+ brightness = LED_OFF;
+ } else {
+ brightness =
+ get_unaligned_le16(&pcu->cmd_buf[IMS_PCU_DATA_OFFSET]);
+ }
+
+ mutex_unlock(&pcu->cmd_mutex);
+
+ return brightness;
+}
+
+static int ims_pcu_setup_backlight(struct ims_pcu *pcu)
+{
+ struct ims_pcu_backlight *backlight = &pcu->backlight;
+ int error;
+
+ INIT_WORK(&backlight->work, ims_pcu_backlight_work);
+ snprintf(backlight->name, sizeof(backlight->name),
+ "pcu%d::kbd_backlight", pcu->device_no);
+
+ backlight->cdev.name = backlight->name;
+ backlight->cdev.max_brightness = IMS_PCU_MAX_BRIGHTNESS;
+ backlight->cdev.brightness_get = ims_pcu_backlight_get_brightness;
+ backlight->cdev.brightness_set = ims_pcu_backlight_set_brightness;
+
+ error = led_classdev_register(pcu->dev, &backlight->cdev);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to register backlight LED device, error: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+static void ims_pcu_destroy_backlight(struct ims_pcu *pcu)
+{
+ struct ims_pcu_backlight *backlight = &pcu->backlight;
+
+ led_classdev_unregister(&backlight->cdev);
+ cancel_work_sync(&backlight->work);
+}
+
+
+/*********************************************************************
+ * Sysfs attributes handling *
+ *********************************************************************/
+
+struct ims_pcu_attribute {
+ struct device_attribute dattr;
+ size_t field_offset;
+ int field_length;
+};
+
+static ssize_t ims_pcu_attribute_show(struct device *dev,
+ struct device_attribute *dattr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ struct ims_pcu_attribute *attr =
+ container_of(dattr, struct ims_pcu_attribute, dattr);
+ char *field = (char *)pcu + attr->field_offset;
+
+ return scnprintf(buf, PAGE_SIZE, "%.*s\n", attr->field_length, field);
+}
+
+static ssize_t ims_pcu_attribute_store(struct device *dev,
+ struct device_attribute *dattr,
+ const char *buf, size_t count)
+{
+
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ struct ims_pcu_attribute *attr =
+ container_of(dattr, struct ims_pcu_attribute, dattr);
+ char *field = (char *)pcu + attr->field_offset;
+ size_t data_len;
+ int error;
+
+ if (count > attr->field_length)
+ return -EINVAL;
+
+ data_len = strnlen(buf, attr->field_length);
+ if (data_len > attr->field_length)
+ return -EINVAL;
+
+ error = mutex_lock_interruptible(&pcu->cmd_mutex);
+ if (error)
+ return error;
+
+ memset(field, 0, attr->field_length);
+ memcpy(field, buf, data_len);
+
+ error = ims_pcu_set_info(pcu);
+
+ /*
+ * Even if update failed, let's fetch the info again as we just
+ * clobbered one of the fields.
+ */
+ ims_pcu_get_info(pcu);
+
+ mutex_unlock(&pcu->cmd_mutex);
+
+ return error < 0 ? error : count;
+}
+
+#define IMS_PCU_ATTR(_field, _mode) \
+struct ims_pcu_attribute ims_pcu_attr_##_field = { \
+ .dattr = __ATTR(_field, _mode, \
+ ims_pcu_attribute_show, \
+ ims_pcu_attribute_store), \
+ .field_offset = offsetof(struct ims_pcu, _field), \
+ .field_length = sizeof(((struct ims_pcu *)NULL)->_field), \
+}
+
+#define IMS_PCU_RO_ATTR(_field) \
+ IMS_PCU_ATTR(_field, S_IRUGO)
+#define IMS_PCU_RW_ATTR(_field) \
+ IMS_PCU_ATTR(_field, S_IRUGO | S_IWUSR)
+
+static IMS_PCU_RW_ATTR(part_number);
+static IMS_PCU_RW_ATTR(serial_number);
+static IMS_PCU_RW_ATTR(date_of_manufacturing);
+
+static IMS_PCU_RO_ATTR(fw_version);
+static IMS_PCU_RO_ATTR(bl_version);
+static IMS_PCU_RO_ATTR(reset_reason);
+
+static ssize_t ims_pcu_reset_device(struct device *dev,
+ struct device_attribute *dattr,
+ const char *buf, size_t count)
+{
+ static const u8 reset_byte = 1;
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ int value;
+ int error;
+
+ error = kstrtoint(buf, 0, &value);
+ if (error)
+ return error;
+
+ if (value != 1)
+ return -EINVAL;
+
+ dev_info(pcu->dev, "Attempting to reset device\n");
+
+ error = ims_pcu_execute_command(pcu, PCU_RESET, &reset_byte, 1);
+ if (error) {
+ dev_info(pcu->dev,
+ "Failed to reset device, error: %d\n",
+ error);
+ return error;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(reset_device, S_IWUSR, NULL, ims_pcu_reset_device);
+
+static ssize_t ims_pcu_update_firmware_store(struct device *dev,
+ struct device_attribute *dattr,
+ const char *buf, size_t count)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ const struct firmware *fw = NULL;
+ int value;
+ int error;
+
+ error = kstrtoint(buf, 0, &value);
+ if (error)
+ return error;
+
+ if (value != 1)
+ return -EINVAL;
+
+ error = mutex_lock_interruptible(&pcu->cmd_mutex);
+ if (error)
+ return error;
+
+ error = request_ihex_firmware(&fw, IMS_PCU_FIRMWARE_NAME, pcu->dev);
+ if (error) {
+ dev_err(pcu->dev, "Failed to request firmware %s, error: %d\n",
+ IMS_PCU_FIRMWARE_NAME, error);
+ goto out;
+ }
+
+ /*
+ * If we are already in bootloader mode we can proceed with
+ * flashing the firmware.
+ *
+ * If we are in application mode, then we need to switch into
+ * bootloader mode, which will cause the device to disconnect
+ * and reconnect as different device.
+ */
+ if (pcu->bootloader_mode)
+ error = ims_pcu_handle_firmware_update(pcu, fw);
+ else
+ error = ims_pcu_switch_to_bootloader(pcu);
+
+ release_firmware(fw);
+
+out:
+ mutex_unlock(&pcu->cmd_mutex);
+ return error ?: count;
+}
+
+static DEVICE_ATTR(update_firmware, S_IWUSR,
+ NULL, ims_pcu_update_firmware_store);
+
+static ssize_t
+ims_pcu_update_firmware_status_show(struct device *dev,
+ struct device_attribute *dattr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", pcu->update_firmware_status);
+}
+
+static DEVICE_ATTR(update_firmware_status, S_IRUGO,
+ ims_pcu_update_firmware_status_show, NULL);
+
+static struct attribute *ims_pcu_attrs[] = {
+ &ims_pcu_attr_part_number.dattr.attr,
+ &ims_pcu_attr_serial_number.dattr.attr,
+ &ims_pcu_attr_date_of_manufacturing.dattr.attr,
+ &ims_pcu_attr_fw_version.dattr.attr,
+ &ims_pcu_attr_bl_version.dattr.attr,
+ &ims_pcu_attr_reset_reason.dattr.attr,
+ &dev_attr_reset_device.attr,
+ &dev_attr_update_firmware.attr,
+ &dev_attr_update_firmware_status.attr,
+ NULL
+};
+
+static umode_t ims_pcu_is_attr_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ umode_t mode = attr->mode;
+
+ if (pcu->bootloader_mode) {
+ if (attr != &dev_attr_update_firmware_status.attr &&
+ attr != &dev_attr_update_firmware.attr &&
+ attr != &dev_attr_reset_device.attr) {
+ mode = 0;
+ }
+ } else {
+ if (attr == &dev_attr_update_firmware_status.attr)
+ mode = 0;
+ }
+
+ return mode;
+}
+
+static struct attribute_group ims_pcu_attr_group = {
+ .is_visible = ims_pcu_is_attr_visible,
+ .attrs = ims_pcu_attrs,
+};
+
+/* Support for a separate OFN attribute group */
+
+#define OFN_REG_RESULT_OFFSET 2
+
+static int ims_pcu_read_ofn_config(struct ims_pcu *pcu, u8 addr, u8 *data)
+{
+ int error;
+ s16 result;
+
+ error = ims_pcu_execute_command(pcu, OFN_GET_CONFIG,
+ &addr, sizeof(addr));
+ if (error)
+ return error;
+
+ result = (s16)get_unaligned_le16(pcu->cmd_buf + OFN_REG_RESULT_OFFSET);
+ if (result < 0)
+ return -EIO;
+
+ /* We only need LSB */
+ *data = pcu->cmd_buf[OFN_REG_RESULT_OFFSET];
+ return 0;
+}
+
+static int ims_pcu_write_ofn_config(struct ims_pcu *pcu, u8 addr, u8 data)
+{
+ u8 buffer[] = { addr, data };
+ int error;
+ s16 result;
+
+ error = ims_pcu_execute_command(pcu, OFN_SET_CONFIG,
+ &buffer, sizeof(buffer));
+ if (error)
+ return error;
+
+ result = (s16)get_unaligned_le16(pcu->cmd_buf + OFN_REG_RESULT_OFFSET);
+ if (result < 0)
+ return -EIO;
+
+ return 0;
+}
+
+static ssize_t ims_pcu_ofn_reg_data_show(struct device *dev,
+ struct device_attribute *dattr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ int error;
+ u8 data;
+
+ mutex_lock(&pcu->cmd_mutex);
+ error = ims_pcu_read_ofn_config(pcu, pcu->ofn_reg_addr, &data);
+ mutex_unlock(&pcu->cmd_mutex);
+
+ if (error)
+ return error;
+
+ return scnprintf(buf, PAGE_SIZE, "%x\n", data);
+}
+
+static ssize_t ims_pcu_ofn_reg_data_store(struct device *dev,
+ struct device_attribute *dattr,
+ const char *buf, size_t count)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ int error;
+ u8 value;
+
+ error = kstrtou8(buf, 0, &value);
+ if (error)
+ return error;
+
+ mutex_lock(&pcu->cmd_mutex);
+ error = ims_pcu_write_ofn_config(pcu, pcu->ofn_reg_addr, value);
+ mutex_unlock(&pcu->cmd_mutex);
+
+ return error ?: count;
+}
+
+static DEVICE_ATTR(reg_data, S_IRUGO | S_IWUSR,
+ ims_pcu_ofn_reg_data_show, ims_pcu_ofn_reg_data_store);
+
+static ssize_t ims_pcu_ofn_reg_addr_show(struct device *dev,
+ struct device_attribute *dattr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ int error;
+
+ mutex_lock(&pcu->cmd_mutex);
+ error = scnprintf(buf, PAGE_SIZE, "%x\n", pcu->ofn_reg_addr);
+ mutex_unlock(&pcu->cmd_mutex);
+
+ return error;
+}
+
+static ssize_t ims_pcu_ofn_reg_addr_store(struct device *dev,
+ struct device_attribute *dattr,
+ const char *buf, size_t count)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ int error;
+ u8 value;
+
+ error = kstrtou8(buf, 0, &value);
+ if (error)
+ return error;
+
+ mutex_lock(&pcu->cmd_mutex);
+ pcu->ofn_reg_addr = value;
+ mutex_unlock(&pcu->cmd_mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(reg_addr, S_IRUGO | S_IWUSR,
+ ims_pcu_ofn_reg_addr_show, ims_pcu_ofn_reg_addr_store);
+
+struct ims_pcu_ofn_bit_attribute {
+ struct device_attribute dattr;
+ u8 addr;
+ u8 nr;
+};
+
+static ssize_t ims_pcu_ofn_bit_show(struct device *dev,
+ struct device_attribute *dattr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ struct ims_pcu_ofn_bit_attribute *attr =
+ container_of(dattr, struct ims_pcu_ofn_bit_attribute, dattr);
+ int error;
+ u8 data;
+
+ mutex_lock(&pcu->cmd_mutex);
+ error = ims_pcu_read_ofn_config(pcu, attr->addr, &data);
+ mutex_unlock(&pcu->cmd_mutex);
+
+ if (error)
+ return error;
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", !!(data & (1 << attr->nr)));
+}
+
+static ssize_t ims_pcu_ofn_bit_store(struct device *dev,
+ struct device_attribute *dattr,
+ const char *buf, size_t count)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ struct ims_pcu_ofn_bit_attribute *attr =
+ container_of(dattr, struct ims_pcu_ofn_bit_attribute, dattr);
+ int error;
+ int value;
+ u8 data;
+
+ error = kstrtoint(buf, 0, &value);
+ if (error)
+ return error;
+
+ if (value > 1)
+ return -EINVAL;
+
+ mutex_lock(&pcu->cmd_mutex);
+
+ error = ims_pcu_read_ofn_config(pcu, attr->addr, &data);
+ if (!error) {
+ if (value)
+ data |= 1U << attr->nr;
+ else
+ data &= ~(1U << attr->nr);
+
+ error = ims_pcu_write_ofn_config(pcu, attr->addr, data);
+ }
+
+ mutex_unlock(&pcu->cmd_mutex);
+
+ return error ?: count;
+}
+
+#define IMS_PCU_OFN_BIT_ATTR(_field, _addr, _nr) \
+struct ims_pcu_ofn_bit_attribute ims_pcu_ofn_attr_##_field = { \
+ .dattr = __ATTR(_field, S_IWUSR | S_IRUGO, \
+ ims_pcu_ofn_bit_show, ims_pcu_ofn_bit_store), \
+ .addr = _addr, \
+ .nr = _nr, \
+}
+
+static IMS_PCU_OFN_BIT_ATTR(engine_enable, 0x60, 7);
+static IMS_PCU_OFN_BIT_ATTR(speed_enable, 0x60, 6);
+static IMS_PCU_OFN_BIT_ATTR(assert_enable, 0x60, 5);
+static IMS_PCU_OFN_BIT_ATTR(xyquant_enable, 0x60, 4);
+static IMS_PCU_OFN_BIT_ATTR(xyscale_enable, 0x60, 1);
+
+static IMS_PCU_OFN_BIT_ATTR(scale_x2, 0x63, 6);
+static IMS_PCU_OFN_BIT_ATTR(scale_y2, 0x63, 7);
+
+static struct attribute *ims_pcu_ofn_attrs[] = {
+ &dev_attr_reg_data.attr,
+ &dev_attr_reg_addr.attr,
+ &ims_pcu_ofn_attr_engine_enable.dattr.attr,
+ &ims_pcu_ofn_attr_speed_enable.dattr.attr,
+ &ims_pcu_ofn_attr_assert_enable.dattr.attr,
+ &ims_pcu_ofn_attr_xyquant_enable.dattr.attr,
+ &ims_pcu_ofn_attr_xyscale_enable.dattr.attr,
+ &ims_pcu_ofn_attr_scale_x2.dattr.attr,
+ &ims_pcu_ofn_attr_scale_y2.dattr.attr,
+ NULL
+};
+
+static struct attribute_group ims_pcu_ofn_attr_group = {
+ .name = "ofn",
+ .attrs = ims_pcu_ofn_attrs,
+};
+
+static void ims_pcu_irq(struct urb *urb)
+{
+ struct ims_pcu *pcu = urb->context;
+ int retval, status;
+
+ status = urb->status;
+
+ switch (status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dev_dbg(pcu->dev, "%s - urb shutting down with status: %d\n",
+ __func__, status);
+ return;
+ default:
+ dev_dbg(pcu->dev, "%s - nonzero urb status received: %d\n",
+ __func__, status);
+ goto exit;
+ }
+
+ dev_dbg(pcu->dev, "%s: received %d: %*ph\n", __func__,
+ urb->actual_length, urb->actual_length, pcu->urb_in_buf);
+
+ if (urb == pcu->urb_in)
+ ims_pcu_process_data(pcu, urb);
+
+exit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval && retval != -ENODEV)
+ dev_err(pcu->dev, "%s - usb_submit_urb failed with result %d\n",
+ __func__, retval);
+}
+
+static int ims_pcu_buffers_alloc(struct ims_pcu *pcu)
+{
+ int error;
+
+ pcu->urb_in_buf = usb_alloc_coherent(pcu->udev, pcu->max_in_size,
+ GFP_KERNEL, &pcu->read_dma);
+ if (!pcu->urb_in_buf) {
+ dev_err(pcu->dev,
+ "Failed to allocate memory for read buffer\n");
+ return -ENOMEM;
+ }
+
+ pcu->urb_in = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pcu->urb_in) {
+ dev_err(pcu->dev, "Failed to allocate input URB\n");
+ error = -ENOMEM;
+ goto err_free_urb_in_buf;
+ }
+
+ pcu->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ pcu->urb_in->transfer_dma = pcu->read_dma;
+
+ usb_fill_bulk_urb(pcu->urb_in, pcu->udev,
+ usb_rcvbulkpipe(pcu->udev,
+ pcu->ep_in->bEndpointAddress),
+ pcu->urb_in_buf, pcu->max_in_size,
+ ims_pcu_irq, pcu);
+
+ /*
+ * We are using usb_bulk_msg() for sending so there is no point
+ * in allocating memory with usb_alloc_coherent().
+ */
+ pcu->urb_out_buf = kmalloc(pcu->max_out_size, GFP_KERNEL);
+ if (!pcu->urb_out_buf) {
+ dev_err(pcu->dev, "Failed to allocate memory for write buffer\n");
+ error = -ENOMEM;
+ goto err_free_in_urb;
+ }
+
+ pcu->urb_ctrl_buf = usb_alloc_coherent(pcu->udev, pcu->max_ctrl_size,
+ GFP_KERNEL, &pcu->ctrl_dma);
+ if (!pcu->urb_ctrl_buf) {
+ dev_err(pcu->dev,
+ "Failed to allocate memory for read buffer\n");
+ error = -ENOMEM;
+ goto err_free_urb_out_buf;
+ }
+
+ pcu->urb_ctrl = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pcu->urb_ctrl) {
+ dev_err(pcu->dev, "Failed to allocate input URB\n");
+ error = -ENOMEM;
+ goto err_free_urb_ctrl_buf;
+ }
+
+ pcu->urb_ctrl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ pcu->urb_ctrl->transfer_dma = pcu->ctrl_dma;
+
+ usb_fill_int_urb(pcu->urb_ctrl, pcu->udev,
+ usb_rcvintpipe(pcu->udev,
+ pcu->ep_ctrl->bEndpointAddress),
+ pcu->urb_ctrl_buf, pcu->max_ctrl_size,
+ ims_pcu_irq, pcu, pcu->ep_ctrl->bInterval);
+
+ return 0;
+
+err_free_urb_ctrl_buf:
+ usb_free_coherent(pcu->udev, pcu->max_ctrl_size,
+ pcu->urb_ctrl_buf, pcu->ctrl_dma);
+err_free_urb_out_buf:
+ kfree(pcu->urb_out_buf);
+err_free_in_urb:
+ usb_free_urb(pcu->urb_in);
+err_free_urb_in_buf:
+ usb_free_coherent(pcu->udev, pcu->max_in_size,
+ pcu->urb_in_buf, pcu->read_dma);
+ return error;
+}
+
+static void ims_pcu_buffers_free(struct ims_pcu *pcu)
+{
+ usb_kill_urb(pcu->urb_in);
+ usb_free_urb(pcu->urb_in);
+
+ usb_free_coherent(pcu->udev, pcu->max_out_size,
+ pcu->urb_in_buf, pcu->read_dma);
+
+ kfree(pcu->urb_out_buf);
+
+ usb_kill_urb(pcu->urb_ctrl);
+ usb_free_urb(pcu->urb_ctrl);
+
+ usb_free_coherent(pcu->udev, pcu->max_ctrl_size,
+ pcu->urb_ctrl_buf, pcu->ctrl_dma);
+}
+
+static const struct usb_cdc_union_desc *
+ims_pcu_get_cdc_union_desc(struct usb_interface *intf)
+{
+ const void *buf = intf->altsetting->extra;
+ size_t buflen = intf->altsetting->extralen;
+ struct usb_cdc_union_desc *union_desc;
+
+ if (!buf) {
+ dev_err(&intf->dev, "Missing descriptor data\n");
+ return NULL;
+ }
+
+ if (!buflen) {
+ dev_err(&intf->dev, "Zero length descriptor\n");
+ return NULL;
+ }
+
+ while (buflen > 0) {
+ union_desc = (struct usb_cdc_union_desc *)buf;
+
+ if (union_desc->bDescriptorType == USB_DT_CS_INTERFACE &&
+ union_desc->bDescriptorSubType == USB_CDC_UNION_TYPE) {
+ dev_dbg(&intf->dev, "Found union header\n");
+ return union_desc;
+ }
+
+ buflen -= union_desc->bLength;
+ buf += union_desc->bLength;
+ }
+
+ dev_err(&intf->dev, "Missing CDC union descriptor\n");
+ return NULL;
+}
+
+static int ims_pcu_parse_cdc_data(struct usb_interface *intf, struct ims_pcu *pcu)
+{
+ const struct usb_cdc_union_desc *union_desc;
+ struct usb_host_interface *alt;
+
+ union_desc = ims_pcu_get_cdc_union_desc(intf);
+ if (!union_desc)
+ return -EINVAL;
+
+ pcu->ctrl_intf = usb_ifnum_to_if(pcu->udev,
+ union_desc->bMasterInterface0);
+
+ alt = pcu->ctrl_intf->cur_altsetting;
+ pcu->ep_ctrl = &alt->endpoint[0].desc;
+ pcu->max_ctrl_size = usb_endpoint_maxp(pcu->ep_ctrl);
+
+ pcu->data_intf = usb_ifnum_to_if(pcu->udev,
+ union_desc->bSlaveInterface0);
+
+ alt = pcu->data_intf->cur_altsetting;
+ if (alt->desc.bNumEndpoints != 2) {
+ dev_err(pcu->dev,
+ "Incorrect number of endpoints on data interface (%d)\n",
+ alt->desc.bNumEndpoints);
+ return -EINVAL;
+ }
+
+ pcu->ep_out = &alt->endpoint[0].desc;
+ if (!usb_endpoint_is_bulk_out(pcu->ep_out)) {
+ dev_err(pcu->dev,
+ "First endpoint on data interface is not BULK OUT\n");
+ return -EINVAL;
+ }
+
+ pcu->max_out_size = usb_endpoint_maxp(pcu->ep_out);
+ if (pcu->max_out_size < 8) {
+ dev_err(pcu->dev,
+ "Max OUT packet size is too small (%zd)\n",
+ pcu->max_out_size);
+ return -EINVAL;
+ }
+
+ pcu->ep_in = &alt->endpoint[1].desc;
+ if (!usb_endpoint_is_bulk_in(pcu->ep_in)) {
+ dev_err(pcu->dev,
+ "Second endpoint on data interface is not BULK IN\n");
+ return -EINVAL;
+ }
+
+ pcu->max_in_size = usb_endpoint_maxp(pcu->ep_in);
+ if (pcu->max_in_size < 8) {
+ dev_err(pcu->dev,
+ "Max IN packet size is too small (%zd)\n",
+ pcu->max_in_size);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ims_pcu_start_io(struct ims_pcu *pcu)
+{
+ int error;
+
+ error = usb_submit_urb(pcu->urb_ctrl, GFP_KERNEL);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to start control IO - usb_submit_urb failed with result: %d\n",
+ error);
+ return -EIO;
+ }
+
+ error = usb_submit_urb(pcu->urb_in, GFP_KERNEL);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to start IO - usb_submit_urb failed with result: %d\n",
+ error);
+ usb_kill_urb(pcu->urb_ctrl);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void ims_pcu_stop_io(struct ims_pcu *pcu)
+{
+ usb_kill_urb(pcu->urb_in);
+ usb_kill_urb(pcu->urb_ctrl);
+}
+
+static int ims_pcu_line_setup(struct ims_pcu *pcu)
+{
+ struct usb_host_interface *interface = pcu->ctrl_intf->cur_altsetting;
+ struct usb_cdc_line_coding *line = (void *)pcu->cmd_buf;
+ int error;
+
+ memset(line, 0, sizeof(*line));
+ line->dwDTERate = cpu_to_le32(57600);
+ line->bDataBits = 8;
+
+ error = usb_control_msg(pcu->udev, usb_sndctrlpipe(pcu->udev, 0),
+ USB_CDC_REQ_SET_LINE_CODING,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0, interface->desc.bInterfaceNumber,
+ line, sizeof(struct usb_cdc_line_coding),
+ 5000);
+ if (error < 0) {
+ dev_err(pcu->dev, "Failed to set line coding, error: %d\n",
+ error);
+ return error;
+ }
+
+ error = usb_control_msg(pcu->udev, usb_sndctrlpipe(pcu->udev, 0),
+ USB_CDC_REQ_SET_CONTROL_LINE_STATE,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0x03, interface->desc.bInterfaceNumber,
+ NULL, 0, 5000);
+ if (error < 0) {
+ dev_err(pcu->dev, "Failed to set line state, error: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int ims_pcu_get_device_info(struct ims_pcu *pcu)
+{
+ int error;
+
+ error = ims_pcu_get_info(pcu);
+ if (error)
+ return error;
+
+ error = ims_pcu_execute_query(pcu, GET_FW_VERSION);
+ if (error) {
+ dev_err(pcu->dev,
+ "GET_FW_VERSION command failed, error: %d\n", error);
+ return error;
+ }
+
+ snprintf(pcu->fw_version, sizeof(pcu->fw_version),
+ "%02d%02d%02d%02d.%c%c",
+ pcu->cmd_buf[2], pcu->cmd_buf[3], pcu->cmd_buf[4], pcu->cmd_buf[5],
+ pcu->cmd_buf[6], pcu->cmd_buf[7]);
+
+ error = ims_pcu_execute_query(pcu, GET_BL_VERSION);
+ if (error) {
+ dev_err(pcu->dev,
+ "GET_BL_VERSION command failed, error: %d\n", error);
+ return error;
+ }
+
+ snprintf(pcu->bl_version, sizeof(pcu->bl_version),
+ "%02d%02d%02d%02d.%c%c",
+ pcu->cmd_buf[2], pcu->cmd_buf[3], pcu->cmd_buf[4], pcu->cmd_buf[5],
+ pcu->cmd_buf[6], pcu->cmd_buf[7]);
+
+ error = ims_pcu_execute_query(pcu, RESET_REASON);
+ if (error) {
+ dev_err(pcu->dev,
+ "RESET_REASON command failed, error: %d\n", error);
+ return error;
+ }
+
+ snprintf(pcu->reset_reason, sizeof(pcu->reset_reason),
+ "%02x", pcu->cmd_buf[IMS_PCU_DATA_OFFSET]);
+
+ dev_dbg(pcu->dev,
+ "P/N: %s, MD: %s, S/N: %s, FW: %s, BL: %s, RR: %s\n",
+ pcu->part_number,
+ pcu->date_of_manufacturing,
+ pcu->serial_number,
+ pcu->fw_version,
+ pcu->bl_version,
+ pcu->reset_reason);
+
+ return 0;
+}
+
+static int ims_pcu_identify_type(struct ims_pcu *pcu, u8 *device_id)
+{
+ int error;
+
+ error = ims_pcu_execute_query(pcu, GET_DEVICE_ID);
+ if (error) {
+ dev_err(pcu->dev,
+ "GET_DEVICE_ID command failed, error: %d\n", error);
+ return error;
+ }
+
+ *device_id = pcu->cmd_buf[IMS_PCU_DATA_OFFSET];
+ dev_dbg(pcu->dev, "Detected device ID: %d\n", *device_id);
+
+ return 0;
+}
+
+static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
+{
+ static atomic_t device_no = ATOMIC_INIT(-1);
+
+ const struct ims_pcu_device_info *info;
+ int error;
+
+ error = ims_pcu_get_device_info(pcu);
+ if (error) {
+ /* Device does not respond to basic queries, hopeless */
+ return error;
+ }
+
+ error = ims_pcu_identify_type(pcu, &pcu->device_id);
+ if (error) {
+ dev_err(pcu->dev,
+ "Failed to identify device, error: %d\n", error);
+ /*
+ * Do not signal error, but do not create input nor
+ * backlight devices either, let userspace figure this
+ * out (flash a new firmware?).
+ */
+ return 0;
+ }
+
+ if (pcu->device_id >= ARRAY_SIZE(ims_pcu_device_info) ||
+ !ims_pcu_device_info[pcu->device_id].keymap) {
+ dev_err(pcu->dev, "Device ID %d is not valid\n", pcu->device_id);
+ /* Same as above, punt to userspace */
+ return 0;
+ }
+
+ /* Device appears to be operable, complete initialization */
+ pcu->device_no = atomic_inc_return(&device_no);
+
+ /*
+ * PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor
+ */
+ if (pcu->device_id != IMS_PCU_PCU_B_DEVICE_ID) {
+ error = sysfs_create_group(&pcu->dev->kobj,
+ &ims_pcu_ofn_attr_group);
+ if (error)
+ return error;
+ }
+
+ error = ims_pcu_setup_backlight(pcu);
+ if (error)
+ return error;
+
+ info = &ims_pcu_device_info[pcu->device_id];
+ error = ims_pcu_setup_buttons(pcu, info->keymap, info->keymap_len);
+ if (error)
+ goto err_destroy_backlight;
+
+ if (info->has_gamepad) {
+ error = ims_pcu_setup_gamepad(pcu);
+ if (error)
+ goto err_destroy_buttons;
+ }
+
+ pcu->setup_complete = true;
+
+ return 0;
+
+err_destroy_buttons:
+ ims_pcu_destroy_buttons(pcu);
+err_destroy_backlight:
+ ims_pcu_destroy_backlight(pcu);
+ return error;
+}
+
+static void ims_pcu_destroy_application_mode(struct ims_pcu *pcu)
+{
+ if (pcu->setup_complete) {
+ pcu->setup_complete = false;
+ mb(); /* make sure flag setting is not reordered */
+
+ if (pcu->gamepad)
+ ims_pcu_destroy_gamepad(pcu);
+ ims_pcu_destroy_buttons(pcu);
+ ims_pcu_destroy_backlight(pcu);
+
+ if (pcu->device_id != IMS_PCU_PCU_B_DEVICE_ID)
+ sysfs_remove_group(&pcu->dev->kobj,
+ &ims_pcu_ofn_attr_group);
+ }
+}
+
+static int ims_pcu_init_bootloader_mode(struct ims_pcu *pcu)
+{
+ int error;
+
+ error = ims_pcu_execute_bl_command(pcu, QUERY_DEVICE, NULL, 0,
+ IMS_PCU_CMD_RESPONSE_TIMEOUT);
+ if (error) {
+ dev_err(pcu->dev, "Bootloader does not respond, aborting\n");
+ return error;
+ }
+
+ pcu->fw_start_addr =
+ get_unaligned_le32(&pcu->cmd_buf[IMS_PCU_DATA_OFFSET + 11]);
+ pcu->fw_end_addr =
+ get_unaligned_le32(&pcu->cmd_buf[IMS_PCU_DATA_OFFSET + 15]);
+
+ dev_info(pcu->dev,
+ "Device is in bootloader mode (addr 0x%08x-0x%08x), requesting firmware\n",
+ pcu->fw_start_addr, pcu->fw_end_addr);
+
+ error = request_firmware_nowait(THIS_MODULE, true,
+ IMS_PCU_FIRMWARE_NAME,
+ pcu->dev, GFP_KERNEL, pcu,
+ ims_pcu_process_async_firmware);
+ if (error) {
+ /* This error is not fatal, let userspace have another chance */
+ complete(&pcu->async_firmware_done);
+ }
+
+ return 0;
+}
+
+static void ims_pcu_destroy_bootloader_mode(struct ims_pcu *pcu)
+{
+ /* Make sure our initial firmware request has completed */
+ wait_for_completion(&pcu->async_firmware_done);
+}
+
+#define IMS_PCU_APPLICATION_MODE 0
+#define IMS_PCU_BOOTLOADER_MODE 1
+
+static struct usb_driver ims_pcu_driver;
+
+static int ims_pcu_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct ims_pcu *pcu;
+ int error;
+
+ pcu = kzalloc(sizeof(struct ims_pcu), GFP_KERNEL);
+ if (!pcu)
+ return -ENOMEM;
+
+ pcu->dev = &intf->dev;
+ pcu->udev = udev;
+ pcu->bootloader_mode = id->driver_info == IMS_PCU_BOOTLOADER_MODE;
+ mutex_init(&pcu->cmd_mutex);
+ init_completion(&pcu->cmd_done);
+ init_completion(&pcu->async_firmware_done);
+
+ error = ims_pcu_parse_cdc_data(intf, pcu);
+ if (error)
+ goto err_free_mem;
+
+ error = usb_driver_claim_interface(&ims_pcu_driver,
+ pcu->data_intf, pcu);
+ if (error) {
+ dev_err(&intf->dev,
+ "Unable to claim corresponding data interface: %d\n",
+ error);
+ goto err_free_mem;
+ }
+
+ usb_set_intfdata(pcu->ctrl_intf, pcu);
+ usb_set_intfdata(pcu->data_intf, pcu);
+
+ error = ims_pcu_buffers_alloc(pcu);
+ if (error)
+ goto err_unclaim_intf;
+
+ error = ims_pcu_start_io(pcu);
+ if (error)
+ goto err_free_buffers;
+
+ error = ims_pcu_line_setup(pcu);
+ if (error)
+ goto err_stop_io;
+
+ error = sysfs_create_group(&intf->dev.kobj, &ims_pcu_attr_group);
+ if (error)
+ goto err_stop_io;
+
+ error = pcu->bootloader_mode ?
+ ims_pcu_init_bootloader_mode(pcu) :
+ ims_pcu_init_application_mode(pcu);
+ if (error)
+ goto err_remove_sysfs;
+
+ return 0;
+
+err_remove_sysfs:
+ sysfs_remove_group(&intf->dev.kobj, &ims_pcu_attr_group);
+err_stop_io:
+ ims_pcu_stop_io(pcu);
+err_free_buffers:
+ ims_pcu_buffers_free(pcu);
+err_unclaim_intf:
+ usb_driver_release_interface(&ims_pcu_driver, pcu->data_intf);
+err_free_mem:
+ kfree(pcu);
+ return error;
+}
+
+static void ims_pcu_disconnect(struct usb_interface *intf)
+{
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ struct usb_host_interface *alt = intf->cur_altsetting;
+
+ usb_set_intfdata(intf, NULL);
+
+ /*
+ * See if we are dealing with control or data interface. The cleanup
+ * happens when we unbind primary (control) interface.
+ */
+ if (alt->desc.bInterfaceClass != USB_CLASS_COMM)
+ return;
+
+ sysfs_remove_group(&intf->dev.kobj, &ims_pcu_attr_group);
+
+ ims_pcu_stop_io(pcu);
+
+ if (pcu->bootloader_mode)
+ ims_pcu_destroy_bootloader_mode(pcu);
+ else
+ ims_pcu_destroy_application_mode(pcu);
+
+ ims_pcu_buffers_free(pcu);
+ kfree(pcu);
+}
+
+#ifdef CONFIG_PM
+static int ims_pcu_suspend(struct usb_interface *intf,
+ pm_message_t message)
+{
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ struct usb_host_interface *alt = intf->cur_altsetting;
+
+ if (alt->desc.bInterfaceClass == USB_CLASS_COMM)
+ ims_pcu_stop_io(pcu);
+
+ return 0;
+}
+
+static int ims_pcu_resume(struct usb_interface *intf)
+{
+ struct ims_pcu *pcu = usb_get_intfdata(intf);
+ struct usb_host_interface *alt = intf->cur_altsetting;
+ int retval = 0;
+
+ if (alt->desc.bInterfaceClass == USB_CLASS_COMM) {
+ retval = ims_pcu_start_io(pcu);
+ if (retval == 0)
+ retval = ims_pcu_line_setup(pcu);
+ }
+
+ return retval;
+}
+#endif
+
+static const struct usb_device_id ims_pcu_id_table[] = {
+ {
+ USB_DEVICE_AND_INTERFACE_INFO(0x04d8, 0x0082,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ACM,
+ USB_CDC_ACM_PROTO_AT_V25TER),
+ .driver_info = IMS_PCU_APPLICATION_MODE,
+ },
+ {
+ USB_DEVICE_AND_INTERFACE_INFO(0x04d8, 0x0083,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ACM,
+ USB_CDC_ACM_PROTO_AT_V25TER),
+ .driver_info = IMS_PCU_BOOTLOADER_MODE,
+ },
+ { }
+};
+
+static struct usb_driver ims_pcu_driver = {
+ .name = "ims_pcu",
+ .id_table = ims_pcu_id_table,
+ .probe = ims_pcu_probe,
+ .disconnect = ims_pcu_disconnect,
+#ifdef CONFIG_PM
+ .suspend = ims_pcu_suspend,
+ .resume = ims_pcu_resume,
+ .reset_resume = ims_pcu_resume,
+#endif
+};
+
+module_usb_driver(ims_pcu_driver);
+
+MODULE_DESCRIPTION("IMS Passenger Control Unit driver");
+MODULE_AUTHOR("Dmitry Torokhov <dmitry.torokhov@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/ixp4xx-beeper.c b/kernel/drivers/input/misc/ixp4xx-beeper.c
new file mode 100644
index 000000000..1fe149f3d
--- /dev/null
+++ b/kernel/drivers/input/misc/ixp4xx-beeper.c
@@ -0,0 +1,177 @@
+/*
+ * Generic IXP4xx beeper driver
+ *
+ * Copyright (C) 2005 Tower Technologies
+ *
+ * based on nslu2-io.c
+ * Copyright (C) 2004 Karen Spearel
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <mach/hardware.h>
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("ixp4xx beeper driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ixp4xx-beeper");
+
+static DEFINE_SPINLOCK(beep_lock);
+
+static void ixp4xx_spkr_control(unsigned int pin, unsigned int count)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&beep_lock, flags);
+
+ if (count) {
+ gpio_direction_output(pin, 0);
+ *IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
+ } else {
+ gpio_direction_output(pin, 1);
+ gpio_direction_input(pin);
+ *IXP4XX_OSRT2 = 0;
+ }
+
+ spin_unlock_irqrestore(&beep_lock, flags);
+}
+
+static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int pin = (unsigned int) input_get_drvdata(dev);
+ unsigned int count = 0;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL:
+ if (value)
+ value = 1000;
+ case SND_TONE:
+ break;
+ default:
+ return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = (ixp4xx_timer_freq / (value * 4)) - 1;
+
+ ixp4xx_spkr_control(pin, count);
+
+ return 0;
+}
+
+static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id)
+{
+ unsigned int pin = (unsigned int) dev_id;
+
+ /* clear interrupt */
+ *IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND;
+
+ /* flip the beeper output */
+ gpio_set_value(pin, !gpio_get_value(pin));
+
+ return IRQ_HANDLED;
+}
+
+static int ixp4xx_spkr_probe(struct platform_device *dev)
+{
+ struct input_dev *input_dev;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_set_drvdata(input_dev, (void *) dev->id);
+
+ input_dev->name = "ixp4xx beeper",
+ input_dev->phys = "ixp4xx/gpio";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x001f;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &dev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+ input_dev->event = ixp4xx_spkr_event;
+
+ err = gpio_request(dev->id, "ixp4-beeper");
+ if (err)
+ goto err_free_device;
+
+ err = request_irq(IRQ_IXP4XX_TIMER2, &ixp4xx_spkr_interrupt,
+ IRQF_NO_SUSPEND, "ixp4xx-beeper",
+ (void *) dev->id);
+ if (err)
+ goto err_free_gpio;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_free_irq;
+
+ platform_set_drvdata(dev, input_dev);
+
+ return 0;
+
+ err_free_irq:
+ free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
+ err_free_gpio:
+ gpio_free(dev->id);
+ err_free_device:
+ input_free_device(input_dev);
+
+ return err;
+}
+
+static int ixp4xx_spkr_remove(struct platform_device *dev)
+{
+ struct input_dev *input_dev = platform_get_drvdata(dev);
+ unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
+
+ input_unregister_device(input_dev);
+
+ /* turn the speaker off */
+ disable_irq(IRQ_IXP4XX_TIMER2);
+ ixp4xx_spkr_control(pin, 0);
+
+ free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
+ gpio_free(dev->id);
+
+ return 0;
+}
+
+static void ixp4xx_spkr_shutdown(struct platform_device *dev)
+{
+ struct input_dev *input_dev = platform_get_drvdata(dev);
+ unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
+
+ /* turn off the speaker */
+ disable_irq(IRQ_IXP4XX_TIMER2);
+ ixp4xx_spkr_control(pin, 0);
+}
+
+static struct platform_driver ixp4xx_spkr_platform_driver = {
+ .driver = {
+ .name = "ixp4xx-beeper",
+ },
+ .probe = ixp4xx_spkr_probe,
+ .remove = ixp4xx_spkr_remove,
+ .shutdown = ixp4xx_spkr_shutdown,
+};
+module_platform_driver(ixp4xx_spkr_platform_driver);
+
diff --git a/kernel/drivers/input/misc/keyspan_remote.c b/kernel/drivers/input/misc/keyspan_remote.c
new file mode 100644
index 000000000..a3fe4a990
--- /dev/null
+++ b/kernel/drivers/input/misc/keyspan_remote.c
@@ -0,0 +1,595 @@
+/*
+ * keyspan_remote: USB driver for the Keyspan DMR
+ *
+ * Copyright (C) 2005 Zymeta Corporation - Michael Downey (downey@zymeta.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ *
+ * This driver has been put together with the support of Innosys, Inc.
+ * and Keyspan, Inc the manufacturers of the Keyspan USB DMR product.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_VERSION "v0.1"
+#define DRIVER_AUTHOR "Michael Downey <downey@zymeta.com>"
+#define DRIVER_DESC "Driver for the USB Keyspan remote control."
+#define DRIVER_LICENSE "GPL"
+
+/* Parameters that can be passed to the driver. */
+static int debug;
+module_param(debug, int, 0444);
+MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
+
+/* Vendor and product ids */
+#define USB_KEYSPAN_VENDOR_ID 0x06CD
+#define USB_KEYSPAN_PRODUCT_UIA11 0x0202
+
+/* Defines for converting the data from the remote. */
+#define ZERO 0x18
+#define ZERO_MASK 0x1F /* 5 bits for a 0 */
+#define ONE 0x3C
+#define ONE_MASK 0x3F /* 6 bits for a 1 */
+#define SYNC 0x3F80
+#define SYNC_MASK 0x3FFF /* 14 bits for a SYNC sequence */
+#define STOP 0x00
+#define STOP_MASK 0x1F /* 5 bits for the STOP sequence */
+#define GAP 0xFF
+
+#define RECV_SIZE 8 /* The UIA-11 type have a 8 byte limit. */
+
+/*
+ * Table that maps the 31 possible keycodes to input keys.
+ * Currently there are 15 and 17 button models so RESERVED codes
+ * are blank areas in the mapping.
+ */
+static const unsigned short keyspan_key_table[] = {
+ KEY_RESERVED, /* 0 is just a place holder. */
+ KEY_RESERVED,
+ KEY_STOP,
+ KEY_PLAYCD,
+ KEY_RESERVED,
+ KEY_PREVIOUSSONG,
+ KEY_REWIND,
+ KEY_FORWARD,
+ KEY_NEXTSONG,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_PAUSE,
+ KEY_VOLUMEUP,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_VOLUMEDOWN,
+ KEY_RESERVED,
+ KEY_UP,
+ KEY_RESERVED,
+ KEY_MUTE,
+ KEY_LEFT,
+ KEY_ENTER,
+ KEY_RIGHT,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_DOWN,
+ KEY_RESERVED,
+ KEY_KPASTERISK,
+ KEY_RESERVED,
+ KEY_MENU
+};
+
+/* table of devices that work with this driver */
+static struct usb_device_id keyspan_table[] = {
+ { USB_DEVICE(USB_KEYSPAN_VENDOR_ID, USB_KEYSPAN_PRODUCT_UIA11) },
+ { } /* Terminating entry */
+};
+
+/* Structure to store all the real stuff that a remote sends to us. */
+struct keyspan_message {
+ u16 system;
+ u8 button;
+ u8 toggle;
+};
+
+/* Structure used for all the bit testing magic needed to be done. */
+struct bit_tester {
+ u32 tester;
+ int len;
+ int pos;
+ int bits_left;
+ u8 buffer[32];
+};
+
+/* Structure to hold all of our driver specific stuff */
+struct usb_keyspan {
+ char name[128];
+ char phys[64];
+ unsigned short keymap[ARRAY_SIZE(keyspan_key_table)];
+ struct usb_device *udev;
+ struct input_dev *input;
+ struct usb_interface *interface;
+ struct usb_endpoint_descriptor *in_endpoint;
+ struct urb* irq_urb;
+ int open;
+ dma_addr_t in_dma;
+ unsigned char *in_buffer;
+
+ /* variables used to parse messages from remote. */
+ struct bit_tester data;
+ int stage;
+ int toggle;
+};
+
+static struct usb_driver keyspan_driver;
+
+/*
+ * Debug routine that prints out what we've received from the remote.
+ */
+static void keyspan_print(struct usb_keyspan* dev) /*unsigned char* data)*/
+{
+ char codes[4 * RECV_SIZE];
+ int i;
+
+ for (i = 0; i < RECV_SIZE; i++)
+ snprintf(codes + i * 3, 4, "%02x ", dev->in_buffer[i]);
+
+ dev_info(&dev->udev->dev, "%s\n", codes);
+}
+
+/*
+ * Routine that manages the bit_tester structure. It makes sure that there are
+ * at least bits_needed bits loaded into the tester.
+ */
+static int keyspan_load_tester(struct usb_keyspan* dev, int bits_needed)
+{
+ if (dev->data.bits_left >= bits_needed)
+ return 0;
+
+ /*
+ * Somehow we've missed the last message. The message will be repeated
+ * though so it's not too big a deal
+ */
+ if (dev->data.pos >= dev->data.len) {
+ dev_dbg(&dev->interface->dev,
+ "%s - Error ran out of data. pos: %d, len: %d\n",
+ __func__, dev->data.pos, dev->data.len);
+ return -1;
+ }
+
+ /* Load as much as we can into the tester. */
+ while ((dev->data.bits_left + 7 < (sizeof(dev->data.tester) * 8)) &&
+ (dev->data.pos < dev->data.len)) {
+ dev->data.tester += (dev->data.buffer[dev->data.pos++] << dev->data.bits_left);
+ dev->data.bits_left += 8;
+ }
+
+ return 0;
+}
+
+static void keyspan_report_button(struct usb_keyspan *remote, int button, int press)
+{
+ struct input_dev *input = remote->input;
+
+ input_event(input, EV_MSC, MSC_SCAN, button);
+ input_report_key(input, remote->keymap[button], press);
+ input_sync(input);
+}
+
+/*
+ * Routine that handles all the logic needed to parse out the message from the remote.
+ */
+static void keyspan_check_data(struct usb_keyspan *remote)
+{
+ int i;
+ int found = 0;
+ struct keyspan_message message;
+
+ switch(remote->stage) {
+ case 0:
+ /*
+ * In stage 0 we want to find the start of a message. The remote sends a 0xFF as filler.
+ * So the first byte that isn't a FF should be the start of a new message.
+ */
+ for (i = 0; i < RECV_SIZE && remote->in_buffer[i] == GAP; ++i);
+
+ if (i < RECV_SIZE) {
+ memcpy(remote->data.buffer, remote->in_buffer, RECV_SIZE);
+ remote->data.len = RECV_SIZE;
+ remote->data.pos = 0;
+ remote->data.tester = 0;
+ remote->data.bits_left = 0;
+ remote->stage = 1;
+ }
+ break;
+
+ case 1:
+ /*
+ * Stage 1 we should have 16 bytes and should be able to detect a
+ * SYNC. The SYNC is 14 bits, 7 0's and then 7 1's.
+ */
+ memcpy(remote->data.buffer + remote->data.len, remote->in_buffer, RECV_SIZE);
+ remote->data.len += RECV_SIZE;
+
+ found = 0;
+ while ((remote->data.bits_left >= 14 || remote->data.pos < remote->data.len) && !found) {
+ for (i = 0; i < 8; ++i) {
+ if (keyspan_load_tester(remote, 14) != 0) {
+ remote->stage = 0;
+ return;
+ }
+
+ if ((remote->data.tester & SYNC_MASK) == SYNC) {
+ remote->data.tester = remote->data.tester >> 14;
+ remote->data.bits_left -= 14;
+ found = 1;
+ break;
+ } else {
+ remote->data.tester = remote->data.tester >> 1;
+ --remote->data.bits_left;
+ }
+ }
+ }
+
+ if (!found) {
+ remote->stage = 0;
+ remote->data.len = 0;
+ } else {
+ remote->stage = 2;
+ }
+ break;
+
+ case 2:
+ /*
+ * Stage 2 we should have 24 bytes which will be enough for a full
+ * message. We need to parse out the system code, button code,
+ * toggle code, and stop.
+ */
+ memcpy(remote->data.buffer + remote->data.len, remote->in_buffer, RECV_SIZE);
+ remote->data.len += RECV_SIZE;
+
+ message.system = 0;
+ for (i = 0; i < 9; i++) {
+ keyspan_load_tester(remote, 6);
+
+ if ((remote->data.tester & ZERO_MASK) == ZERO) {
+ message.system = message.system << 1;
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else if ((remote->data.tester & ONE_MASK) == ONE) {
+ message.system = (message.system << 1) + 1;
+ remote->data.tester = remote->data.tester >> 6;
+ remote->data.bits_left -= 6;
+ } else {
+ dev_err(&remote->interface->dev,
+ "%s - Unknown sequence found in system data.\n",
+ __func__);
+ remote->stage = 0;
+ return;
+ }
+ }
+
+ message.button = 0;
+ for (i = 0; i < 5; i++) {
+ keyspan_load_tester(remote, 6);
+
+ if ((remote->data.tester & ZERO_MASK) == ZERO) {
+ message.button = message.button << 1;
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else if ((remote->data.tester & ONE_MASK) == ONE) {
+ message.button = (message.button << 1) + 1;
+ remote->data.tester = remote->data.tester >> 6;
+ remote->data.bits_left -= 6;
+ } else {
+ dev_err(&remote->interface->dev,
+ "%s - Unknown sequence found in button data.\n",
+ __func__);
+ remote->stage = 0;
+ return;
+ }
+ }
+
+ keyspan_load_tester(remote, 6);
+ if ((remote->data.tester & ZERO_MASK) == ZERO) {
+ message.toggle = 0;
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else if ((remote->data.tester & ONE_MASK) == ONE) {
+ message.toggle = 1;
+ remote->data.tester = remote->data.tester >> 6;
+ remote->data.bits_left -= 6;
+ } else {
+ dev_err(&remote->interface->dev,
+ "%s - Error in message, invalid toggle.\n",
+ __func__);
+ remote->stage = 0;
+ return;
+ }
+
+ keyspan_load_tester(remote, 5);
+ if ((remote->data.tester & STOP_MASK) == STOP) {
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else {
+ dev_err(&remote->interface->dev,
+ "Bad message received, no stop bit found.\n");
+ }
+
+ dev_dbg(&remote->interface->dev,
+ "%s found valid message: system: %d, button: %d, toggle: %d\n",
+ __func__, message.system, message.button, message.toggle);
+
+ if (message.toggle != remote->toggle) {
+ keyspan_report_button(remote, message.button, 1);
+ keyspan_report_button(remote, message.button, 0);
+ remote->toggle = message.toggle;
+ }
+
+ remote->stage = 0;
+ break;
+ }
+}
+
+/*
+ * Routine for sending all the initialization messages to the remote.
+ */
+static int keyspan_setup(struct usb_device* dev)
+{
+ int retval = 0;
+
+ retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x11, 0x40, 0x5601, 0x0, NULL, 0, 0);
+ if (retval) {
+ dev_dbg(&dev->dev, "%s - failed to set bit rate due to error: %d\n",
+ __func__, retval);
+ return(retval);
+ }
+
+ retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x44, 0x40, 0x0, 0x0, NULL, 0, 0);
+ if (retval) {
+ dev_dbg(&dev->dev, "%s - failed to set resume sensitivity due to error: %d\n",
+ __func__, retval);
+ return(retval);
+ }
+
+ retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x22, 0x40, 0x0, 0x0, NULL, 0, 0);
+ if (retval) {
+ dev_dbg(&dev->dev, "%s - failed to turn receive on due to error: %d\n",
+ __func__, retval);
+ return(retval);
+ }
+
+ dev_dbg(&dev->dev, "%s - Setup complete.\n", __func__);
+ return(retval);
+}
+
+/*
+ * Routine used to handle a new message that has come in.
+ */
+static void keyspan_irq_recv(struct urb *urb)
+{
+ struct usb_keyspan *dev = urb->context;
+ int retval;
+
+ /* Check our status in case we need to bail out early. */
+ switch (urb->status) {
+ case 0:
+ break;
+
+ /* Device went away so don't keep trying to read from it. */
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+
+ default:
+ goto resubmit;
+ }
+
+ if (debug)
+ keyspan_print(dev);
+
+ keyspan_check_data(dev);
+
+resubmit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ dev_err(&dev->interface->dev,
+ "%s - usb_submit_urb failed with result: %d\n",
+ __func__, retval);
+}
+
+static int keyspan_open(struct input_dev *dev)
+{
+ struct usb_keyspan *remote = input_get_drvdata(dev);
+
+ remote->irq_urb->dev = remote->udev;
+ if (usb_submit_urb(remote->irq_urb, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void keyspan_close(struct input_dev *dev)
+{
+ struct usb_keyspan *remote = input_get_drvdata(dev);
+
+ usb_kill_urb(remote->irq_urb);
+}
+
+static struct usb_endpoint_descriptor *keyspan_get_in_endpoint(struct usb_host_interface *iface)
+{
+
+ struct usb_endpoint_descriptor *endpoint;
+ int i;
+
+ for (i = 0; i < iface->desc.bNumEndpoints; ++i) {
+ endpoint = &iface->endpoint[i].desc;
+
+ if (usb_endpoint_is_int_in(endpoint)) {
+ /* we found our interrupt in endpoint */
+ return endpoint;
+ }
+ }
+
+ return NULL;
+}
+
+/*
+ * Routine that sets up the driver to handle a specific USB device detected on the bus.
+ */
+static int keyspan_probe(struct usb_interface *interface, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_endpoint_descriptor *endpoint;
+ struct usb_keyspan *remote;
+ struct input_dev *input_dev;
+ int i, error;
+
+ endpoint = keyspan_get_in_endpoint(interface->cur_altsetting);
+ if (!endpoint)
+ return -ENODEV;
+
+ remote = kzalloc(sizeof(*remote), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!remote || !input_dev) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ remote->udev = udev;
+ remote->input = input_dev;
+ remote->interface = interface;
+ remote->in_endpoint = endpoint;
+ remote->toggle = -1; /* Set to -1 so we will always not match the toggle from the first remote message. */
+
+ remote->in_buffer = usb_alloc_coherent(udev, RECV_SIZE, GFP_ATOMIC, &remote->in_dma);
+ if (!remote->in_buffer) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!remote->irq_urb) {
+ error = -ENOMEM;
+ goto fail2;
+ }
+
+ error = keyspan_setup(udev);
+ if (error) {
+ error = -ENODEV;
+ goto fail3;
+ }
+
+ if (udev->manufacturer)
+ strlcpy(remote->name, udev->manufacturer, sizeof(remote->name));
+
+ if (udev->product) {
+ if (udev->manufacturer)
+ strlcat(remote->name, " ", sizeof(remote->name));
+ strlcat(remote->name, udev->product, sizeof(remote->name));
+ }
+
+ if (!strlen(remote->name))
+ snprintf(remote->name, sizeof(remote->name),
+ "USB Keyspan Remote %04x:%04x",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
+
+ usb_make_path(udev, remote->phys, sizeof(remote->phys));
+ strlcat(remote->phys, "/input0", sizeof(remote->phys));
+ memcpy(remote->keymap, keyspan_key_table, sizeof(remote->keymap));
+
+ input_dev->name = remote->name;
+ input_dev->phys = remote->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &interface->dev;
+ input_dev->keycode = remote->keymap;
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = ARRAY_SIZE(remote->keymap);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input_dev->evbit);
+ for (i = 0; i < ARRAY_SIZE(keyspan_key_table); i++)
+ __set_bit(keyspan_key_table[i], input_dev->keybit);
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ input_set_drvdata(input_dev, remote);
+
+ input_dev->open = keyspan_open;
+ input_dev->close = keyspan_close;
+
+ /*
+ * Initialize the URB to access the device.
+ * The urb gets sent to the device in keyspan_open()
+ */
+ usb_fill_int_urb(remote->irq_urb,
+ remote->udev,
+ usb_rcvintpipe(remote->udev, endpoint->bEndpointAddress),
+ remote->in_buffer, RECV_SIZE, keyspan_irq_recv, remote,
+ endpoint->bInterval);
+ remote->irq_urb->transfer_dma = remote->in_dma;
+ remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* we can register the device now, as it is ready */
+ error = input_register_device(remote->input);
+ if (error)
+ goto fail3;
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(interface, remote);
+
+ return 0;
+
+ fail3: usb_free_urb(remote->irq_urb);
+ fail2: usb_free_coherent(udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
+ fail1: kfree(remote);
+ input_free_device(input_dev);
+
+ return error;
+}
+
+/*
+ * Routine called when a device is disconnected from the USB.
+ */
+static void keyspan_disconnect(struct usb_interface *interface)
+{
+ struct usb_keyspan *remote;
+
+ remote = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ if (remote) { /* We have a valid driver structure so clean up everything we allocated. */
+ input_unregister_device(remote->input);
+ usb_kill_urb(remote->irq_urb);
+ usb_free_urb(remote->irq_urb);
+ usb_free_coherent(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
+ kfree(remote);
+ }
+}
+
+/*
+ * Standard driver set up sections
+ */
+static struct usb_driver keyspan_driver =
+{
+ .name = "keyspan_remote",
+ .probe = keyspan_probe,
+ .disconnect = keyspan_disconnect,
+ .id_table = keyspan_table
+};
+
+module_usb_driver(keyspan_driver);
+
+MODULE_DEVICE_TABLE(usb, keyspan_table);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
diff --git a/kernel/drivers/input/misc/kxtj9.c b/kernel/drivers/input/misc/kxtj9.c
new file mode 100644
index 000000000..6e29349da
--- /dev/null
+++ b/kernel/drivers/input/misc/kxtj9.c
@@ -0,0 +1,673 @@
+/*
+ * Copyright (C) 2011 Kionix, Inc.
+ * Written by Chris Hudson <chudson@kionix.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input/kxtj9.h>
+#include <linux/input-polldev.h>
+
+#define NAME "kxtj9"
+#define G_MAX 8000
+/* OUTPUT REGISTERS */
+#define XOUT_L 0x06
+#define WHO_AM_I 0x0F
+/* CONTROL REGISTERS */
+#define INT_REL 0x1A
+#define CTRL_REG1 0x1B
+#define INT_CTRL1 0x1E
+#define DATA_CTRL 0x21
+/* CONTROL REGISTER 1 BITS */
+#define PC1_OFF 0x7F
+#define PC1_ON (1 << 7)
+/* Data ready funtion enable bit: set during probe if using irq mode */
+#define DRDYE (1 << 5)
+/* DATA CONTROL REGISTER BITS */
+#define ODR12_5F 0
+#define ODR25F 1
+#define ODR50F 2
+#define ODR100F 3
+#define ODR200F 4
+#define ODR400F 5
+#define ODR800F 6
+/* INTERRUPT CONTROL REGISTER 1 BITS */
+/* Set these during probe if using irq mode */
+#define KXTJ9_IEL (1 << 3)
+#define KXTJ9_IEA (1 << 4)
+#define KXTJ9_IEN (1 << 5)
+/* INPUT_ABS CONSTANTS */
+#define FUZZ 3
+#define FLAT 3
+/* RESUME STATE INDICES */
+#define RES_DATA_CTRL 0
+#define RES_CTRL_REG1 1
+#define RES_INT_CTRL1 2
+#define RESUME_ENTRIES 3
+
+/*
+ * The following table lists the maximum appropriate poll interval for each
+ * available output data rate.
+ */
+static const struct {
+ unsigned int cutoff;
+ u8 mask;
+} kxtj9_odr_table[] = {
+ { 3, ODR800F },
+ { 5, ODR400F },
+ { 10, ODR200F },
+ { 20, ODR100F },
+ { 40, ODR50F },
+ { 80, ODR25F },
+ { 0, ODR12_5F},
+};
+
+struct kxtj9_data {
+ struct i2c_client *client;
+ struct kxtj9_platform_data pdata;
+ struct input_dev *input_dev;
+#ifdef CONFIG_INPUT_KXTJ9_POLLED_MODE
+ struct input_polled_dev *poll_dev;
+#endif
+ unsigned int last_poll_interval;
+ u8 shift;
+ u8 ctrl_reg1;
+ u8 data_ctrl;
+ u8 int_ctrl;
+};
+
+static int kxtj9_i2c_read(struct kxtj9_data *tj9, u8 addr, u8 *data, int len)
+{
+ struct i2c_msg msgs[] = {
+ {
+ .addr = tj9->client->addr,
+ .flags = tj9->client->flags,
+ .len = 1,
+ .buf = &addr,
+ },
+ {
+ .addr = tj9->client->addr,
+ .flags = tj9->client->flags | I2C_M_RD,
+ .len = len,
+ .buf = data,
+ },
+ };
+
+ return i2c_transfer(tj9->client->adapter, msgs, 2);
+}
+
+static void kxtj9_report_acceleration_data(struct kxtj9_data *tj9)
+{
+ s16 acc_data[3]; /* Data bytes from hardware xL, xH, yL, yH, zL, zH */
+ s16 x, y, z;
+ int err;
+
+ err = kxtj9_i2c_read(tj9, XOUT_L, (u8 *)acc_data, 6);
+ if (err < 0)
+ dev_err(&tj9->client->dev, "accelerometer data read failed\n");
+
+ x = le16_to_cpu(acc_data[tj9->pdata.axis_map_x]);
+ y = le16_to_cpu(acc_data[tj9->pdata.axis_map_y]);
+ z = le16_to_cpu(acc_data[tj9->pdata.axis_map_z]);
+
+ x >>= tj9->shift;
+ y >>= tj9->shift;
+ z >>= tj9->shift;
+
+ input_report_abs(tj9->input_dev, ABS_X, tj9->pdata.negate_x ? -x : x);
+ input_report_abs(tj9->input_dev, ABS_Y, tj9->pdata.negate_y ? -y : y);
+ input_report_abs(tj9->input_dev, ABS_Z, tj9->pdata.negate_z ? -z : z);
+ input_sync(tj9->input_dev);
+}
+
+static irqreturn_t kxtj9_isr(int irq, void *dev)
+{
+ struct kxtj9_data *tj9 = dev;
+ int err;
+
+ /* data ready is the only possible interrupt type */
+ kxtj9_report_acceleration_data(tj9);
+
+ err = i2c_smbus_read_byte_data(tj9->client, INT_REL);
+ if (err < 0)
+ dev_err(&tj9->client->dev,
+ "error clearing interrupt status: %d\n", err);
+
+ return IRQ_HANDLED;
+}
+
+static int kxtj9_update_g_range(struct kxtj9_data *tj9, u8 new_g_range)
+{
+ switch (new_g_range) {
+ case KXTJ9_G_2G:
+ tj9->shift = 4;
+ break;
+ case KXTJ9_G_4G:
+ tj9->shift = 3;
+ break;
+ case KXTJ9_G_8G:
+ tj9->shift = 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ tj9->ctrl_reg1 &= 0xe7;
+ tj9->ctrl_reg1 |= new_g_range;
+
+ return 0;
+}
+
+static int kxtj9_update_odr(struct kxtj9_data *tj9, unsigned int poll_interval)
+{
+ int err;
+ int i;
+
+ /* Use the lowest ODR that can support the requested poll interval */
+ for (i = 0; i < ARRAY_SIZE(kxtj9_odr_table); i++) {
+ tj9->data_ctrl = kxtj9_odr_table[i].mask;
+ if (poll_interval < kxtj9_odr_table[i].cutoff)
+ break;
+ }
+
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, 0);
+ if (err < 0)
+ return err;
+
+ err = i2c_smbus_write_byte_data(tj9->client, DATA_CTRL, tj9->data_ctrl);
+ if (err < 0)
+ return err;
+
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int kxtj9_device_power_on(struct kxtj9_data *tj9)
+{
+ if (tj9->pdata.power_on)
+ return tj9->pdata.power_on();
+
+ return 0;
+}
+
+static void kxtj9_device_power_off(struct kxtj9_data *tj9)
+{
+ int err;
+
+ tj9->ctrl_reg1 &= PC1_OFF;
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
+ if (err < 0)
+ dev_err(&tj9->client->dev, "soft power off failed\n");
+
+ if (tj9->pdata.power_off)
+ tj9->pdata.power_off();
+}
+
+static int kxtj9_enable(struct kxtj9_data *tj9)
+{
+ int err;
+
+ err = kxtj9_device_power_on(tj9);
+ if (err < 0)
+ return err;
+
+ /* ensure that PC1 is cleared before updating control registers */
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, 0);
+ if (err < 0)
+ return err;
+
+ /* only write INT_CTRL_REG1 if in irq mode */
+ if (tj9->client->irq) {
+ err = i2c_smbus_write_byte_data(tj9->client,
+ INT_CTRL1, tj9->int_ctrl);
+ if (err < 0)
+ return err;
+ }
+
+ err = kxtj9_update_g_range(tj9, tj9->pdata.g_range);
+ if (err < 0)
+ return err;
+
+ /* turn on outputs */
+ tj9->ctrl_reg1 |= PC1_ON;
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
+ if (err < 0)
+ return err;
+
+ err = kxtj9_update_odr(tj9, tj9->last_poll_interval);
+ if (err < 0)
+ return err;
+
+ /* clear initial interrupt if in irq mode */
+ if (tj9->client->irq) {
+ err = i2c_smbus_read_byte_data(tj9->client, INT_REL);
+ if (err < 0) {
+ dev_err(&tj9->client->dev,
+ "error clearing interrupt: %d\n", err);
+ goto fail;
+ }
+ }
+
+ return 0;
+
+fail:
+ kxtj9_device_power_off(tj9);
+ return err;
+}
+
+static void kxtj9_disable(struct kxtj9_data *tj9)
+{
+ kxtj9_device_power_off(tj9);
+}
+
+static int kxtj9_input_open(struct input_dev *input)
+{
+ struct kxtj9_data *tj9 = input_get_drvdata(input);
+
+ return kxtj9_enable(tj9);
+}
+
+static void kxtj9_input_close(struct input_dev *dev)
+{
+ struct kxtj9_data *tj9 = input_get_drvdata(dev);
+
+ kxtj9_disable(tj9);
+}
+
+static void kxtj9_init_input_device(struct kxtj9_data *tj9,
+ struct input_dev *input_dev)
+{
+ __set_bit(EV_ABS, input_dev->evbit);
+ input_set_abs_params(input_dev, ABS_X, -G_MAX, G_MAX, FUZZ, FLAT);
+ input_set_abs_params(input_dev, ABS_Y, -G_MAX, G_MAX, FUZZ, FLAT);
+ input_set_abs_params(input_dev, ABS_Z, -G_MAX, G_MAX, FUZZ, FLAT);
+
+ input_dev->name = "kxtj9_accel";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &tj9->client->dev;
+}
+
+static int kxtj9_setup_input_device(struct kxtj9_data *tj9)
+{
+ struct input_dev *input_dev;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&tj9->client->dev, "input device allocate failed\n");
+ return -ENOMEM;
+ }
+
+ tj9->input_dev = input_dev;
+
+ input_dev->open = kxtj9_input_open;
+ input_dev->close = kxtj9_input_close;
+ input_set_drvdata(input_dev, tj9);
+
+ kxtj9_init_input_device(tj9, input_dev);
+
+ err = input_register_device(tj9->input_dev);
+ if (err) {
+ dev_err(&tj9->client->dev,
+ "unable to register input polled device %s: %d\n",
+ tj9->input_dev->name, err);
+ input_free_device(tj9->input_dev);
+ return err;
+ }
+
+ return 0;
+}
+
+/*
+ * When IRQ mode is selected, we need to provide an interface to allow the user
+ * to change the output data rate of the part. For consistency, we are using
+ * the set_poll method, which accepts a poll interval in milliseconds, and then
+ * calls update_odr() while passing this value as an argument. In IRQ mode, the
+ * data outputs will not be read AT the requested poll interval, rather, the
+ * lowest ODR that can support the requested interval. The client application
+ * will be responsible for retrieving data from the input node at the desired
+ * interval.
+ */
+
+/* Returns currently selected poll interval (in ms) */
+static ssize_t kxtj9_get_poll(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+
+ return sprintf(buf, "%d\n", tj9->last_poll_interval);
+}
+
+/* Allow users to select a new poll interval (in ms) */
+static ssize_t kxtj9_set_poll(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+ struct input_dev *input_dev = tj9->input_dev;
+ unsigned int interval;
+ int error;
+
+ error = kstrtouint(buf, 10, &interval);
+ if (error < 0)
+ return error;
+
+ /* Lock the device to prevent races with open/close (and itself) */
+ mutex_lock(&input_dev->mutex);
+
+ disable_irq(client->irq);
+
+ /*
+ * Set current interval to the greater of the minimum interval or
+ * the requested interval
+ */
+ tj9->last_poll_interval = max(interval, tj9->pdata.min_interval);
+
+ kxtj9_update_odr(tj9, tj9->last_poll_interval);
+
+ enable_irq(client->irq);
+ mutex_unlock(&input_dev->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(poll, S_IRUGO|S_IWUSR, kxtj9_get_poll, kxtj9_set_poll);
+
+static struct attribute *kxtj9_attributes[] = {
+ &dev_attr_poll.attr,
+ NULL
+};
+
+static struct attribute_group kxtj9_attribute_group = {
+ .attrs = kxtj9_attributes
+};
+
+
+#ifdef CONFIG_INPUT_KXTJ9_POLLED_MODE
+static void kxtj9_poll(struct input_polled_dev *dev)
+{
+ struct kxtj9_data *tj9 = dev->private;
+ unsigned int poll_interval = dev->poll_interval;
+
+ kxtj9_report_acceleration_data(tj9);
+
+ if (poll_interval != tj9->last_poll_interval) {
+ kxtj9_update_odr(tj9, poll_interval);
+ tj9->last_poll_interval = poll_interval;
+ }
+}
+
+static void kxtj9_polled_input_open(struct input_polled_dev *dev)
+{
+ struct kxtj9_data *tj9 = dev->private;
+
+ kxtj9_enable(tj9);
+}
+
+static void kxtj9_polled_input_close(struct input_polled_dev *dev)
+{
+ struct kxtj9_data *tj9 = dev->private;
+
+ kxtj9_disable(tj9);
+}
+
+static int kxtj9_setup_polled_device(struct kxtj9_data *tj9)
+{
+ int err;
+ struct input_polled_dev *poll_dev;
+ poll_dev = input_allocate_polled_device();
+
+ if (!poll_dev) {
+ dev_err(&tj9->client->dev,
+ "Failed to allocate polled device\n");
+ return -ENOMEM;
+ }
+
+ tj9->poll_dev = poll_dev;
+ tj9->input_dev = poll_dev->input;
+
+ poll_dev->private = tj9;
+ poll_dev->poll = kxtj9_poll;
+ poll_dev->open = kxtj9_polled_input_open;
+ poll_dev->close = kxtj9_polled_input_close;
+
+ kxtj9_init_input_device(tj9, poll_dev->input);
+
+ err = input_register_polled_device(poll_dev);
+ if (err) {
+ dev_err(&tj9->client->dev,
+ "Unable to register polled device, err=%d\n", err);
+ input_free_polled_device(poll_dev);
+ return err;
+ }
+
+ return 0;
+}
+
+static void kxtj9_teardown_polled_device(struct kxtj9_data *tj9)
+{
+ input_unregister_polled_device(tj9->poll_dev);
+ input_free_polled_device(tj9->poll_dev);
+}
+
+#else
+
+static inline int kxtj9_setup_polled_device(struct kxtj9_data *tj9)
+{
+ return -ENOSYS;
+}
+
+static inline void kxtj9_teardown_polled_device(struct kxtj9_data *tj9)
+{
+}
+
+#endif
+
+static int kxtj9_verify(struct kxtj9_data *tj9)
+{
+ int retval;
+
+ retval = kxtj9_device_power_on(tj9);
+ if (retval < 0)
+ return retval;
+
+ retval = i2c_smbus_read_byte_data(tj9->client, WHO_AM_I);
+ if (retval < 0) {
+ dev_err(&tj9->client->dev, "read err int source\n");
+ goto out;
+ }
+
+ retval = (retval != 0x07 && retval != 0x08) ? -EIO : 0;
+
+out:
+ kxtj9_device_power_off(tj9);
+ return retval;
+}
+
+static int kxtj9_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct kxtj9_platform_data *pdata =
+ dev_get_platdata(&client->dev);
+ struct kxtj9_data *tj9;
+ int err;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_I2C | I2C_FUNC_SMBUS_BYTE_DATA)) {
+ dev_err(&client->dev, "client is not i2c capable\n");
+ return -ENXIO;
+ }
+
+ if (!pdata) {
+ dev_err(&client->dev, "platform data is NULL; exiting\n");
+ return -EINVAL;
+ }
+
+ tj9 = kzalloc(sizeof(*tj9), GFP_KERNEL);
+ if (!tj9) {
+ dev_err(&client->dev,
+ "failed to allocate memory for module data\n");
+ return -ENOMEM;
+ }
+
+ tj9->client = client;
+ tj9->pdata = *pdata;
+
+ if (pdata->init) {
+ err = pdata->init();
+ if (err < 0)
+ goto err_free_mem;
+ }
+
+ err = kxtj9_verify(tj9);
+ if (err < 0) {
+ dev_err(&client->dev, "device not recognized\n");
+ goto err_pdata_exit;
+ }
+
+ i2c_set_clientdata(client, tj9);
+
+ tj9->ctrl_reg1 = tj9->pdata.res_12bit | tj9->pdata.g_range;
+ tj9->last_poll_interval = tj9->pdata.init_interval;
+
+ if (client->irq) {
+ /* If in irq mode, populate INT_CTRL_REG1 and enable DRDY. */
+ tj9->int_ctrl |= KXTJ9_IEN | KXTJ9_IEA | KXTJ9_IEL;
+ tj9->ctrl_reg1 |= DRDYE;
+
+ err = kxtj9_setup_input_device(tj9);
+ if (err)
+ goto err_pdata_exit;
+
+ err = request_threaded_irq(client->irq, NULL, kxtj9_isr,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ "kxtj9-irq", tj9);
+ if (err) {
+ dev_err(&client->dev, "request irq failed: %d\n", err);
+ goto err_destroy_input;
+ }
+
+ err = sysfs_create_group(&client->dev.kobj, &kxtj9_attribute_group);
+ if (err) {
+ dev_err(&client->dev, "sysfs create failed: %d\n", err);
+ goto err_free_irq;
+ }
+
+ } else {
+ err = kxtj9_setup_polled_device(tj9);
+ if (err)
+ goto err_pdata_exit;
+ }
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, tj9);
+err_destroy_input:
+ input_unregister_device(tj9->input_dev);
+err_pdata_exit:
+ if (tj9->pdata.exit)
+ tj9->pdata.exit();
+err_free_mem:
+ kfree(tj9);
+ return err;
+}
+
+static int kxtj9_remove(struct i2c_client *client)
+{
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+
+ if (client->irq) {
+ sysfs_remove_group(&client->dev.kobj, &kxtj9_attribute_group);
+ free_irq(client->irq, tj9);
+ input_unregister_device(tj9->input_dev);
+ } else {
+ kxtj9_teardown_polled_device(tj9);
+ }
+
+ if (tj9->pdata.exit)
+ tj9->pdata.exit();
+
+ kfree(tj9);
+
+ return 0;
+}
+
+static int __maybe_unused kxtj9_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+ struct input_dev *input_dev = tj9->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ kxtj9_disable(tj9);
+
+ mutex_unlock(&input_dev->mutex);
+ return 0;
+}
+
+static int __maybe_unused kxtj9_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+ struct input_dev *input_dev = tj9->input_dev;
+ int retval = 0;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ kxtj9_enable(tj9);
+
+ mutex_unlock(&input_dev->mutex);
+ return retval;
+}
+
+static SIMPLE_DEV_PM_OPS(kxtj9_pm_ops, kxtj9_suspend, kxtj9_resume);
+
+static const struct i2c_device_id kxtj9_id[] = {
+ { NAME, 0 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, kxtj9_id);
+
+static struct i2c_driver kxtj9_driver = {
+ .driver = {
+ .name = NAME,
+ .owner = THIS_MODULE,
+ .pm = &kxtj9_pm_ops,
+ },
+ .probe = kxtj9_probe,
+ .remove = kxtj9_remove,
+ .id_table = kxtj9_id,
+};
+
+module_i2c_driver(kxtj9_driver);
+
+MODULE_DESCRIPTION("KXTJ9 accelerometer driver");
+MODULE_AUTHOR("Chris Hudson <chudson@kionix.com>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/m68kspkr.c b/kernel/drivers/input/misc/m68kspkr.c
new file mode 100644
index 000000000..312d63623
--- /dev/null
+++ b/kernel/drivers/input/misc/m68kspkr.c
@@ -0,0 +1,149 @@
+/*
+ * m68k beeper driver for Linux
+ *
+ * Copyright (c) 2002 Richard Zidlicky
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
+MODULE_DESCRIPTION("m68k beeper driver");
+MODULE_LICENSE("GPL");
+
+static struct platform_device *m68kspkr_platform_device;
+
+static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ mach_beep(count, -1);
+
+ return 0;
+}
+
+static int m68kspkr_probe(struct platform_device *dev)
+{
+ struct input_dev *input_dev;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = "m68k beeper";
+ input_dev->phys = "m68k/generic";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x001f;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &dev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+ input_dev->event = m68kspkr_event;
+
+ err = input_register_device(input_dev);
+ if (err) {
+ input_free_device(input_dev);
+ return err;
+ }
+
+ platform_set_drvdata(dev, input_dev);
+
+ return 0;
+}
+
+static int m68kspkr_remove(struct platform_device *dev)
+{
+ struct input_dev *input_dev = platform_get_drvdata(dev);
+
+ input_unregister_device(input_dev);
+ /* turn off the speaker */
+ m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static void m68kspkr_shutdown(struct platform_device *dev)
+{
+ /* turn off the speaker */
+ m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
+}
+
+static struct platform_driver m68kspkr_platform_driver = {
+ .driver = {
+ .name = "m68kspkr",
+ },
+ .probe = m68kspkr_probe,
+ .remove = m68kspkr_remove,
+ .shutdown = m68kspkr_shutdown,
+};
+
+static int __init m68kspkr_init(void)
+{
+ int err;
+
+ if (!mach_beep) {
+ printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
+ return -ENODEV;
+ }
+
+ err = platform_driver_register(&m68kspkr_platform_driver);
+ if (err)
+ return err;
+
+ m68kspkr_platform_device = platform_device_alloc("m68kspkr", -1);
+ if (!m68kspkr_platform_device) {
+ err = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ err = platform_device_add(m68kspkr_platform_device);
+ if (err)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(m68kspkr_platform_device);
+ err_unregister_driver:
+ platform_driver_unregister(&m68kspkr_platform_driver);
+
+ return err;
+}
+
+static void __exit m68kspkr_exit(void)
+{
+ platform_device_unregister(m68kspkr_platform_device);
+ platform_driver_unregister(&m68kspkr_platform_driver);
+}
+
+module_init(m68kspkr_init);
+module_exit(m68kspkr_exit);
diff --git a/kernel/drivers/input/misc/max77693-haptic.c b/kernel/drivers/input/misc/max77693-haptic.c
new file mode 100644
index 000000000..39e930c10
--- /dev/null
+++ b/kernel/drivers/input/misc/max77693-haptic.c
@@ -0,0 +1,353 @@
+/*
+ * MAXIM MAX77693 Haptic device driver
+ *
+ * Copyright (C) 2014 Samsung Electronics
+ * Jaewon Kim <jaewon02.kim@samsung.com>
+ *
+ * This program is not provided / owned by Maxim Integrated Products.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/regulator/consumer.h>
+#include <linux/mfd/max77693.h>
+#include <linux/mfd/max77693-private.h>
+
+#define MAX_MAGNITUDE_SHIFT 16
+
+enum max77693_haptic_motor_type {
+ MAX77693_HAPTIC_ERM = 0,
+ MAX77693_HAPTIC_LRA,
+};
+
+enum max77693_haptic_pulse_mode {
+ MAX77693_HAPTIC_EXTERNAL_MODE = 0,
+ MAX77693_HAPTIC_INTERNAL_MODE,
+};
+
+enum max77693_haptic_pwm_divisor {
+ MAX77693_HAPTIC_PWM_DIVISOR_32 = 0,
+ MAX77693_HAPTIC_PWM_DIVISOR_64,
+ MAX77693_HAPTIC_PWM_DIVISOR_128,
+ MAX77693_HAPTIC_PWM_DIVISOR_256,
+};
+
+struct max77693_haptic {
+ struct regmap *regmap_pmic;
+ struct regmap *regmap_haptic;
+ struct device *dev;
+ struct input_dev *input_dev;
+ struct pwm_device *pwm_dev;
+ struct regulator *motor_reg;
+
+ bool enabled;
+ bool suspend_state;
+ unsigned int magnitude;
+ unsigned int pwm_duty;
+ enum max77693_haptic_motor_type type;
+ enum max77693_haptic_pulse_mode mode;
+ enum max77693_haptic_pwm_divisor pwm_divisor;
+
+ struct work_struct work;
+};
+
+static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic)
+{
+ int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2;
+ int error;
+
+ error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period);
+ if (error) {
+ dev_err(haptic->dev, "failed to configure pwm: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int max77693_haptic_configure(struct max77693_haptic *haptic,
+ bool enable)
+{
+ unsigned int value;
+ int error;
+
+ value = ((haptic->type << MAX77693_CONFIG2_MODE) |
+ (enable << MAX77693_CONFIG2_MEN) |
+ (haptic->mode << MAX77693_CONFIG2_HTYP) |
+ (haptic->pwm_divisor));
+
+ error = regmap_write(haptic->regmap_haptic,
+ MAX77693_HAPTIC_REG_CONFIG2, value);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to update haptic config: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int max77693_haptic_lowsys(struct max77693_haptic *haptic, bool enable)
+{
+ int error;
+
+ error = regmap_update_bits(haptic->regmap_pmic,
+ MAX77693_PMIC_REG_LSCNFG,
+ MAX77693_PMIC_LOW_SYS_MASK,
+ enable << MAX77693_PMIC_LOW_SYS_SHIFT);
+ if (error) {
+ dev_err(haptic->dev, "cannot update pmic regmap: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static void max77693_haptic_enable(struct max77693_haptic *haptic)
+{
+ int error;
+
+ if (haptic->enabled)
+ return;
+
+ error = pwm_enable(haptic->pwm_dev);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to enable haptic pwm device: %d\n", error);
+ return;
+ }
+
+ error = max77693_haptic_lowsys(haptic, true);
+ if (error)
+ goto err_enable_lowsys;
+
+ error = max77693_haptic_configure(haptic, true);
+ if (error)
+ goto err_enable_config;
+
+ haptic->enabled = true;
+
+ return;
+
+err_enable_config:
+ max77693_haptic_lowsys(haptic, false);
+err_enable_lowsys:
+ pwm_disable(haptic->pwm_dev);
+}
+
+static void max77693_haptic_disable(struct max77693_haptic *haptic)
+{
+ int error;
+
+ if (!haptic->enabled)
+ return;
+
+ error = max77693_haptic_configure(haptic, false);
+ if (error)
+ return;
+
+ error = max77693_haptic_lowsys(haptic, false);
+ if (error)
+ goto err_disable_lowsys;
+
+ pwm_disable(haptic->pwm_dev);
+ haptic->enabled = false;
+
+ return;
+
+err_disable_lowsys:
+ max77693_haptic_configure(haptic, true);
+}
+
+static void max77693_haptic_play_work(struct work_struct *work)
+{
+ struct max77693_haptic *haptic =
+ container_of(work, struct max77693_haptic, work);
+ int error;
+
+ error = max77693_haptic_set_duty_cycle(haptic);
+ if (error) {
+ dev_err(haptic->dev, "failed to set duty cycle: %d\n", error);
+ return;
+ }
+
+ if (haptic->magnitude)
+ max77693_haptic_enable(haptic);
+ else
+ max77693_haptic_disable(haptic);
+}
+
+static int max77693_haptic_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct max77693_haptic *haptic = input_get_drvdata(dev);
+ u64 period_mag_multi;
+
+ haptic->magnitude = effect->u.rumble.strong_magnitude;
+ if (!haptic->magnitude)
+ haptic->magnitude = effect->u.rumble.weak_magnitude;
+
+ /*
+ * The magnitude comes from force-feedback interface.
+ * The formula to convert magnitude to pwm_duty as follows:
+ * - pwm_duty = (magnitude * pwm_period) / MAX_MAGNITUDE(0xFFFF)
+ */
+ period_mag_multi = (u64)haptic->pwm_dev->period * haptic->magnitude;
+ haptic->pwm_duty = (unsigned int)(period_mag_multi >>
+ MAX_MAGNITUDE_SHIFT);
+
+ schedule_work(&haptic->work);
+
+ return 0;
+}
+
+static int max77693_haptic_open(struct input_dev *dev)
+{
+ struct max77693_haptic *haptic = input_get_drvdata(dev);
+ int error;
+
+ error = regulator_enable(haptic->motor_reg);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to enable regulator: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static void max77693_haptic_close(struct input_dev *dev)
+{
+ struct max77693_haptic *haptic = input_get_drvdata(dev);
+ int error;
+
+ cancel_work_sync(&haptic->work);
+ max77693_haptic_disable(haptic);
+
+ error = regulator_disable(haptic->motor_reg);
+ if (error)
+ dev_err(haptic->dev,
+ "failed to disable regulator: %d\n", error);
+}
+
+static int max77693_haptic_probe(struct platform_device *pdev)
+{
+ struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent);
+ struct max77693_haptic *haptic;
+ int error;
+
+ haptic = devm_kzalloc(&pdev->dev, sizeof(*haptic), GFP_KERNEL);
+ if (!haptic)
+ return -ENOMEM;
+
+ haptic->regmap_pmic = max77693->regmap;
+ haptic->regmap_haptic = max77693->regmap_haptic;
+ haptic->dev = &pdev->dev;
+ haptic->type = MAX77693_HAPTIC_LRA;
+ haptic->mode = MAX77693_HAPTIC_EXTERNAL_MODE;
+ haptic->pwm_divisor = MAX77693_HAPTIC_PWM_DIVISOR_128;
+ haptic->suspend_state = false;
+
+ INIT_WORK(&haptic->work, max77693_haptic_play_work);
+
+ /* Get pwm and regulatot for haptic device */
+ haptic->pwm_dev = devm_pwm_get(&pdev->dev, NULL);
+ if (IS_ERR(haptic->pwm_dev)) {
+ dev_err(&pdev->dev, "failed to get pwm device\n");
+ return PTR_ERR(haptic->pwm_dev);
+ }
+
+ haptic->motor_reg = devm_regulator_get(&pdev->dev, "haptic");
+ if (IS_ERR(haptic->motor_reg)) {
+ dev_err(&pdev->dev, "failed to get regulator\n");
+ return PTR_ERR(haptic->motor_reg);
+ }
+
+ /* Initialize input device for haptic device */
+ haptic->input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!haptic->input_dev) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ haptic->input_dev->name = "max77693-haptic";
+ haptic->input_dev->id.version = 1;
+ haptic->input_dev->dev.parent = &pdev->dev;
+ haptic->input_dev->open = max77693_haptic_open;
+ haptic->input_dev->close = max77693_haptic_close;
+ input_set_drvdata(haptic->input_dev, haptic);
+ input_set_capability(haptic->input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(haptic->input_dev, NULL,
+ max77693_haptic_play_effect);
+ if (error) {
+ dev_err(&pdev->dev, "failed to create force-feedback\n");
+ return error;
+ }
+
+ error = input_register_device(haptic->input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ return error;
+ }
+
+ platform_set_drvdata(pdev, haptic);
+
+ return 0;
+}
+
+static int __maybe_unused max77693_haptic_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max77693_haptic *haptic = platform_get_drvdata(pdev);
+
+ if (haptic->enabled) {
+ max77693_haptic_disable(haptic);
+ haptic->suspend_state = true;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused max77693_haptic_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max77693_haptic *haptic = platform_get_drvdata(pdev);
+
+ if (haptic->suspend_state) {
+ max77693_haptic_enable(haptic);
+ haptic->suspend_state = false;
+ }
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops,
+ max77693_haptic_suspend, max77693_haptic_resume);
+
+static struct platform_driver max77693_haptic_driver = {
+ .driver = {
+ .name = "max77693-haptic",
+ .pm = &max77693_haptic_pm_ops,
+ },
+ .probe = max77693_haptic_probe,
+};
+module_platform_driver(max77693_haptic_driver);
+
+MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>");
+MODULE_DESCRIPTION("MAXIM MAX77693 Haptic driver");
+MODULE_ALIAS("platform:max77693-haptic");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/max77843-haptic.c b/kernel/drivers/input/misc/max77843-haptic.c
new file mode 100644
index 000000000..dccbb465a
--- /dev/null
+++ b/kernel/drivers/input/misc/max77843-haptic.c
@@ -0,0 +1,358 @@
+/*
+ * MAXIM MAX77693 Haptic device driver
+ *
+ * Copyright (C) 2015 Samsung Electronics
+ * Author: Jaewon Kim <jaewon02.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/mfd/max77843-private.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#define MAX_MAGNITUDE_SHIFT 16
+
+enum max77843_haptic_motor_type {
+ MAX77843_HAPTIC_ERM = 0,
+ MAX77843_HAPTIC_LRA,
+};
+
+enum max77843_haptic_pwm_divisor {
+ MAX77843_HAPTIC_PWM_DIVISOR_32 = 0,
+ MAX77843_HAPTIC_PWM_DIVISOR_64,
+ MAX77843_HAPTIC_PWM_DIVISOR_128,
+ MAX77843_HAPTIC_PWM_DIVISOR_256,
+};
+
+struct max77843_haptic {
+ struct regmap *regmap_haptic;
+ struct device *dev;
+ struct input_dev *input_dev;
+ struct pwm_device *pwm_dev;
+ struct regulator *motor_reg;
+ struct work_struct work;
+ struct mutex mutex;
+
+ unsigned int magnitude;
+ unsigned int pwm_duty;
+
+ bool active;
+ bool suspended;
+
+ enum max77843_haptic_motor_type type;
+ enum max77843_haptic_pwm_divisor pwm_divisor;
+};
+
+static int max77843_haptic_set_duty_cycle(struct max77843_haptic *haptic)
+{
+ int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2;
+ int error;
+
+ error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period);
+ if (error) {
+ dev_err(haptic->dev, "failed to configure pwm: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int max77843_haptic_bias(struct max77843_haptic *haptic, bool on)
+{
+ int error;
+
+ error = regmap_update_bits(haptic->regmap_haptic,
+ MAX77843_SYS_REG_MAINCTRL1,
+ MAX77843_MAINCTRL1_BIASEN_MASK,
+ on << MAINCTRL1_BIASEN_SHIFT);
+ if (error) {
+ dev_err(haptic->dev, "failed to %s bias: %d\n",
+ on ? "enable" : "disable", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int max77843_haptic_config(struct max77843_haptic *haptic, bool enable)
+{
+ unsigned int value;
+ int error;
+
+ value = (haptic->type << MCONFIG_MODE_SHIFT) |
+ (enable << MCONFIG_MEN_SHIFT) |
+ (haptic->pwm_divisor << MCONFIG_PDIV_SHIFT);
+
+ error = regmap_write(haptic->regmap_haptic,
+ MAX77843_HAP_REG_MCONFIG, value);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to update haptic config: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int max77843_haptic_enable(struct max77843_haptic *haptic)
+{
+ int error;
+
+ if (haptic->active)
+ return 0;
+
+ error = pwm_enable(haptic->pwm_dev);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to enable pwm device: %d\n", error);
+ return error;
+ }
+
+ error = max77843_haptic_config(haptic, true);
+ if (error)
+ goto err_config;
+
+ haptic->active = true;
+
+ return 0;
+
+err_config:
+ pwm_disable(haptic->pwm_dev);
+
+ return error;
+}
+
+static int max77843_haptic_disable(struct max77843_haptic *haptic)
+{
+ int error;
+
+ if (!haptic->active)
+ return 0;
+
+ error = max77843_haptic_config(haptic, false);
+ if (error)
+ return error;
+
+ pwm_disable(haptic->pwm_dev);
+
+ haptic->active = false;
+
+ return 0;
+}
+
+static void max77843_haptic_play_work(struct work_struct *work)
+{
+ struct max77843_haptic *haptic =
+ container_of(work, struct max77843_haptic, work);
+ int error;
+
+ mutex_lock(&haptic->mutex);
+
+ if (haptic->suspended)
+ goto out_unlock;
+
+ if (haptic->magnitude) {
+ error = max77843_haptic_set_duty_cycle(haptic);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to set duty cycle: %d\n", error);
+ goto out_unlock;
+ }
+
+ error = max77843_haptic_enable(haptic);
+ if (error)
+ dev_err(haptic->dev,
+ "cannot enable haptic: %d\n", error);
+ } else {
+ error = max77843_haptic_disable(haptic);
+ if (error)
+ dev_err(haptic->dev,
+ "cannot disable haptic: %d\n", error);
+ }
+
+out_unlock:
+ mutex_unlock(&haptic->mutex);
+}
+
+static int max77843_haptic_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct max77843_haptic *haptic = input_get_drvdata(dev);
+ u64 period_mag_multi;
+
+ haptic->magnitude = effect->u.rumble.strong_magnitude;
+ if (!haptic->magnitude)
+ haptic->magnitude = effect->u.rumble.weak_magnitude;
+
+ period_mag_multi = (u64)haptic->pwm_dev->period * haptic->magnitude;
+ haptic->pwm_duty = (unsigned int)(period_mag_multi >>
+ MAX_MAGNITUDE_SHIFT);
+
+ schedule_work(&haptic->work);
+
+ return 0;
+}
+
+static int max77843_haptic_open(struct input_dev *dev)
+{
+ struct max77843_haptic *haptic = input_get_drvdata(dev);
+ int error;
+
+ error = max77843_haptic_bias(haptic, true);
+ if (error)
+ return error;
+
+ error = regulator_enable(haptic->motor_reg);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to enable regulator: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static void max77843_haptic_close(struct input_dev *dev)
+{
+ struct max77843_haptic *haptic = input_get_drvdata(dev);
+ int error;
+
+ cancel_work_sync(&haptic->work);
+ max77843_haptic_disable(haptic);
+
+ error = regulator_disable(haptic->motor_reg);
+ if (error)
+ dev_err(haptic->dev,
+ "failed to disable regulator: %d\n", error);
+
+ max77843_haptic_bias(haptic, false);
+}
+
+static int max77843_haptic_probe(struct platform_device *pdev)
+{
+ struct max77843 *max77843 = dev_get_drvdata(pdev->dev.parent);
+ struct max77843_haptic *haptic;
+ int error;
+
+ haptic = devm_kzalloc(&pdev->dev, sizeof(*haptic), GFP_KERNEL);
+ if (!haptic)
+ return -ENOMEM;
+
+ haptic->regmap_haptic = max77843->regmap;
+ haptic->dev = &pdev->dev;
+ haptic->type = MAX77843_HAPTIC_LRA;
+ haptic->pwm_divisor = MAX77843_HAPTIC_PWM_DIVISOR_128;
+
+ INIT_WORK(&haptic->work, max77843_haptic_play_work);
+ mutex_init(&haptic->mutex);
+
+ haptic->pwm_dev = devm_pwm_get(&pdev->dev, NULL);
+ if (IS_ERR(haptic->pwm_dev)) {
+ dev_err(&pdev->dev, "failed to get pwm device\n");
+ return PTR_ERR(haptic->pwm_dev);
+ }
+
+ haptic->motor_reg = devm_regulator_get_exclusive(&pdev->dev, "haptic");
+ if (IS_ERR(haptic->motor_reg)) {
+ dev_err(&pdev->dev, "failed to get regulator\n");
+ return PTR_ERR(haptic->motor_reg);
+ }
+
+ haptic->input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!haptic->input_dev) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ haptic->input_dev->name = "max77843-haptic";
+ haptic->input_dev->id.version = 1;
+ haptic->input_dev->dev.parent = &pdev->dev;
+ haptic->input_dev->open = max77843_haptic_open;
+ haptic->input_dev->close = max77843_haptic_close;
+ input_set_drvdata(haptic->input_dev, haptic);
+ input_set_capability(haptic->input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(haptic->input_dev, NULL,
+ max77843_haptic_play_effect);
+ if (error) {
+ dev_err(&pdev->dev, "failed to create force-feedback\n");
+ return error;
+ }
+
+ error = input_register_device(haptic->input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ return error;
+ }
+
+ platform_set_drvdata(pdev, haptic);
+
+ return 0;
+}
+
+static int __maybe_unused max77843_haptic_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max77843_haptic *haptic = platform_get_drvdata(pdev);
+ int error;
+
+ error = mutex_lock_interruptible(&haptic->mutex);
+ if (error)
+ return error;
+
+ max77843_haptic_disable(haptic);
+
+ haptic->suspended = true;
+
+ mutex_unlock(&haptic->mutex);
+
+ return 0;
+}
+
+static int __maybe_unused max77843_haptic_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max77843_haptic *haptic = platform_get_drvdata(pdev);
+ unsigned int magnitude;
+
+ mutex_lock(&haptic->mutex);
+
+ haptic->suspended = false;
+
+ magnitude = ACCESS_ONCE(haptic->magnitude);
+ if (magnitude)
+ max77843_haptic_enable(haptic);
+
+ mutex_unlock(&haptic->mutex);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(max77843_haptic_pm_ops,
+ max77843_haptic_suspend, max77843_haptic_resume);
+
+static struct platform_driver max77843_haptic_driver = {
+ .driver = {
+ .name = "max77843-haptic",
+ .pm = &max77843_haptic_pm_ops,
+ },
+ .probe = max77843_haptic_probe,
+};
+module_platform_driver(max77843_haptic_driver);
+
+MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>");
+MODULE_DESCRIPTION("MAXIM MAX77843 Haptic driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/max8925_onkey.c b/kernel/drivers/input/misc/max8925_onkey.c
new file mode 100644
index 000000000..7c49b8d23
--- /dev/null
+++ b/kernel/drivers/input/misc/max8925_onkey.c
@@ -0,0 +1,177 @@
+/**
+ * MAX8925 ONKEY driver
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max8925.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+
+#define SW_INPUT (1 << 7) /* 0/1 -- up/down */
+#define HARDRESET_EN (1 << 7)
+#define PWREN_EN (1 << 7)
+
+struct max8925_onkey_info {
+ struct input_dev *idev;
+ struct i2c_client *i2c;
+ struct device *dev;
+ unsigned int irq[2];
+};
+
+/*
+ * MAX8925 gives us an interrupt when ONKEY is pressed or released.
+ * max8925_set_bits() operates I2C bus and may sleep. So implement
+ * it in thread IRQ handler.
+ */
+static irqreturn_t max8925_onkey_handler(int irq, void *data)
+{
+ struct max8925_onkey_info *info = data;
+ int state;
+
+ state = max8925_reg_read(info->i2c, MAX8925_ON_OFF_STATUS);
+
+ input_report_key(info->idev, KEY_POWER, state & SW_INPUT);
+ input_sync(info->idev);
+
+ dev_dbg(info->dev, "onkey state:%d\n", state);
+
+ /* Enable hardreset to halt if system isn't shutdown on time */
+ max8925_set_bits(info->i2c, MAX8925_SYSENSEL,
+ HARDRESET_EN, HARDRESET_EN);
+
+ return IRQ_HANDLED;
+}
+
+static int max8925_onkey_probe(struct platform_device *pdev)
+{
+ struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct max8925_onkey_info *info;
+ struct input_dev *input;
+ int irq[2], error;
+
+ irq[0] = platform_get_irq(pdev, 0);
+ if (irq[0] < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ irq[1] = platform_get_irq(pdev, 1);
+ if (irq[1] < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ info = devm_kzalloc(&pdev->dev, sizeof(struct max8925_onkey_info),
+ GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ input = devm_input_allocate_device(&pdev->dev);
+ if (!input)
+ return -ENOMEM;
+
+ info->idev = input;
+ info->i2c = chip->i2c;
+ info->dev = &pdev->dev;
+ info->irq[0] = irq[0];
+ info->irq[1] = irq[1];
+
+ input->name = "max8925_on";
+ input->phys = "max8925_on/input0";
+ input->id.bustype = BUS_I2C;
+ input->dev.parent = &pdev->dev;
+ input_set_capability(input, EV_KEY, KEY_POWER);
+
+ error = devm_request_threaded_irq(&pdev->dev, irq[0], NULL,
+ max8925_onkey_handler, IRQF_ONESHOT,
+ "onkey-down", info);
+ if (error < 0) {
+ dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+ irq[0], error);
+ return error;
+ }
+
+ error = devm_request_threaded_irq(&pdev->dev, irq[1], NULL,
+ max8925_onkey_handler, IRQF_ONESHOT,
+ "onkey-up", info);
+ if (error < 0) {
+ dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+ irq[1], error);
+ return error;
+ }
+
+ error = input_register_device(info->idev);
+ if (error) {
+ dev_err(chip->dev, "Can't register input device: %d\n", error);
+ return error;
+ }
+
+ platform_set_drvdata(pdev, info);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+}
+
+static int __maybe_unused max8925_onkey_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max8925_onkey_info *info = platform_get_drvdata(pdev);
+ struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+ if (device_may_wakeup(dev)) {
+ chip->wakeup_flag |= 1 << info->irq[0];
+ chip->wakeup_flag |= 1 << info->irq[1];
+ }
+
+ return 0;
+}
+
+static int __maybe_unused max8925_onkey_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max8925_onkey_info *info = platform_get_drvdata(pdev);
+ struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+ if (device_may_wakeup(dev)) {
+ chip->wakeup_flag &= ~(1 << info->irq[0]);
+ chip->wakeup_flag &= ~(1 << info->irq[1]);
+ }
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(max8925_onkey_pm_ops, max8925_onkey_suspend, max8925_onkey_resume);
+
+static struct platform_driver max8925_onkey_driver = {
+ .driver = {
+ .name = "max8925-onkey",
+ .pm = &max8925_onkey_pm_ops,
+ },
+ .probe = max8925_onkey_probe,
+};
+module_platform_driver(max8925_onkey_driver);
+
+MODULE_DESCRIPTION("Maxim MAX8925 ONKEY driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/max8997_haptic.c b/kernel/drivers/input/misc/max8997_haptic.c
new file mode 100644
index 000000000..d0f687281
--- /dev/null
+++ b/kernel/drivers/input/misc/max8997_haptic.c
@@ -0,0 +1,413 @@
+/*
+ * MAX8997-haptic controller driver
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * Donggeun Kim <dg77.kim@samsung.com>
+ *
+ * This program is not provided / owned by Maxim Integrated Products.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/pwm.h>
+#include <linux/input.h>
+#include <linux/mfd/max8997-private.h>
+#include <linux/mfd/max8997.h>
+#include <linux/regulator/consumer.h>
+
+/* Haptic configuration 2 register */
+#define MAX8997_MOTOR_TYPE_SHIFT 7
+#define MAX8997_ENABLE_SHIFT 6
+#define MAX8997_MODE_SHIFT 5
+
+/* Haptic driver configuration register */
+#define MAX8997_CYCLE_SHIFT 6
+#define MAX8997_SIG_PERIOD_SHIFT 4
+#define MAX8997_SIG_DUTY_SHIFT 2
+#define MAX8997_PWM_DUTY_SHIFT 0
+
+struct max8997_haptic {
+ struct device *dev;
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ struct regulator *regulator;
+
+ struct work_struct work;
+ struct mutex mutex;
+
+ bool enabled;
+ unsigned int level;
+
+ struct pwm_device *pwm;
+ unsigned int pwm_period;
+ enum max8997_haptic_pwm_divisor pwm_divisor;
+
+ enum max8997_haptic_motor_type type;
+ enum max8997_haptic_pulse_mode mode;
+
+ unsigned int internal_mode_pattern;
+ unsigned int pattern_cycle;
+ unsigned int pattern_signal_period;
+};
+
+static int max8997_haptic_set_duty_cycle(struct max8997_haptic *chip)
+{
+ int ret = 0;
+
+ if (chip->mode == MAX8997_EXTERNAL_MODE) {
+ unsigned int duty = chip->pwm_period * chip->level / 100;
+ ret = pwm_config(chip->pwm, duty, chip->pwm_period);
+ } else {
+ int i;
+ u8 duty_index = 0;
+
+ for (i = 0; i <= 64; i++) {
+ if (chip->level <= i * 100 / 64) {
+ duty_index = i;
+ break;
+ }
+ }
+ switch (chip->internal_mode_pattern) {
+ case 0:
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGPWMDC1, duty_index);
+ break;
+ case 1:
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGPWMDC2, duty_index);
+ break;
+ case 2:
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGPWMDC3, duty_index);
+ break;
+ case 3:
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGPWMDC4, duty_index);
+ break;
+ default:
+ break;
+ }
+ }
+ return ret;
+}
+
+static void max8997_haptic_configure(struct max8997_haptic *chip)
+{
+ u8 value;
+
+ value = chip->type << MAX8997_MOTOR_TYPE_SHIFT |
+ chip->enabled << MAX8997_ENABLE_SHIFT |
+ chip->mode << MAX8997_MODE_SHIFT | chip->pwm_divisor;
+ max8997_write_reg(chip->client, MAX8997_HAPTIC_REG_CONF2, value);
+
+ if (chip->mode == MAX8997_INTERNAL_MODE && chip->enabled) {
+ value = chip->internal_mode_pattern << MAX8997_CYCLE_SHIFT |
+ chip->internal_mode_pattern << MAX8997_SIG_PERIOD_SHIFT |
+ chip->internal_mode_pattern << MAX8997_SIG_DUTY_SHIFT |
+ chip->internal_mode_pattern << MAX8997_PWM_DUTY_SHIFT;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_DRVCONF, value);
+
+ switch (chip->internal_mode_pattern) {
+ case 0:
+ value = chip->pattern_cycle << 4;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_CYCLECONF1, value);
+ value = chip->pattern_signal_period;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGCONF1, value);
+ break;
+
+ case 1:
+ value = chip->pattern_cycle;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_CYCLECONF1, value);
+ value = chip->pattern_signal_period;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGCONF2, value);
+ break;
+
+ case 2:
+ value = chip->pattern_cycle << 4;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_CYCLECONF2, value);
+ value = chip->pattern_signal_period;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGCONF3, value);
+ break;
+
+ case 3:
+ value = chip->pattern_cycle;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_CYCLECONF2, value);
+ value = chip->pattern_signal_period;
+ max8997_write_reg(chip->client,
+ MAX8997_HAPTIC_REG_SIGCONF4, value);
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+
+static void max8997_haptic_enable(struct max8997_haptic *chip)
+{
+ int error;
+
+ mutex_lock(&chip->mutex);
+
+ error = max8997_haptic_set_duty_cycle(chip);
+ if (error) {
+ dev_err(chip->dev, "set_pwm_cycle failed, error: %d\n", error);
+ goto out;
+ }
+
+ if (!chip->enabled) {
+ error = regulator_enable(chip->regulator);
+ if (error) {
+ dev_err(chip->dev, "Failed to enable regulator\n");
+ goto out;
+ }
+ max8997_haptic_configure(chip);
+ if (chip->mode == MAX8997_EXTERNAL_MODE) {
+ error = pwm_enable(chip->pwm);
+ if (error) {
+ dev_err(chip->dev, "Failed to enable PWM\n");
+ regulator_disable(chip->regulator);
+ goto out;
+ }
+ }
+ chip->enabled = true;
+ }
+
+out:
+ mutex_unlock(&chip->mutex);
+}
+
+static void max8997_haptic_disable(struct max8997_haptic *chip)
+{
+ mutex_lock(&chip->mutex);
+
+ if (chip->enabled) {
+ chip->enabled = false;
+ max8997_haptic_configure(chip);
+ if (chip->mode == MAX8997_EXTERNAL_MODE)
+ pwm_disable(chip->pwm);
+ regulator_disable(chip->regulator);
+ }
+
+ mutex_unlock(&chip->mutex);
+}
+
+static void max8997_haptic_play_effect_work(struct work_struct *work)
+{
+ struct max8997_haptic *chip =
+ container_of(work, struct max8997_haptic, work);
+
+ if (chip->level)
+ max8997_haptic_enable(chip);
+ else
+ max8997_haptic_disable(chip);
+}
+
+static int max8997_haptic_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct max8997_haptic *chip = input_get_drvdata(dev);
+
+ chip->level = effect->u.rumble.strong_magnitude;
+ if (!chip->level)
+ chip->level = effect->u.rumble.weak_magnitude;
+
+ schedule_work(&chip->work);
+
+ return 0;
+}
+
+static void max8997_haptic_close(struct input_dev *dev)
+{
+ struct max8997_haptic *chip = input_get_drvdata(dev);
+
+ cancel_work_sync(&chip->work);
+ max8997_haptic_disable(chip);
+}
+
+static int max8997_haptic_probe(struct platform_device *pdev)
+{
+ struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ const struct max8997_platform_data *pdata =
+ dev_get_platdata(iodev->dev);
+ const struct max8997_haptic_platform_data *haptic_pdata =
+ pdata->haptic_pdata;
+ struct max8997_haptic *chip;
+ struct input_dev *input_dev;
+ int error;
+
+ if (!haptic_pdata) {
+ dev_err(&pdev->dev, "no haptic platform data\n");
+ return -EINVAL;
+ }
+
+ chip = kzalloc(sizeof(struct max8997_haptic), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!chip || !input_dev) {
+ dev_err(&pdev->dev, "unable to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ INIT_WORK(&chip->work, max8997_haptic_play_effect_work);
+ mutex_init(&chip->mutex);
+
+ chip->client = iodev->haptic;
+ chip->dev = &pdev->dev;
+ chip->input_dev = input_dev;
+ chip->pwm_period = haptic_pdata->pwm_period;
+ chip->type = haptic_pdata->type;
+ chip->mode = haptic_pdata->mode;
+ chip->pwm_divisor = haptic_pdata->pwm_divisor;
+
+ switch (chip->mode) {
+ case MAX8997_INTERNAL_MODE:
+ chip->internal_mode_pattern =
+ haptic_pdata->internal_mode_pattern;
+ chip->pattern_cycle = haptic_pdata->pattern_cycle;
+ chip->pattern_signal_period =
+ haptic_pdata->pattern_signal_period;
+ break;
+
+ case MAX8997_EXTERNAL_MODE:
+ chip->pwm = pwm_request(haptic_pdata->pwm_channel_id,
+ "max8997-haptic");
+ if (IS_ERR(chip->pwm)) {
+ error = PTR_ERR(chip->pwm);
+ dev_err(&pdev->dev,
+ "unable to request PWM for haptic, error: %d\n",
+ error);
+ goto err_free_mem;
+ }
+ break;
+
+ default:
+ dev_err(&pdev->dev,
+ "Invalid chip mode specified (%d)\n", chip->mode);
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
+ chip->regulator = regulator_get(&pdev->dev, "inmotor");
+ if (IS_ERR(chip->regulator)) {
+ error = PTR_ERR(chip->regulator);
+ dev_err(&pdev->dev,
+ "unable to get regulator, error: %d\n",
+ error);
+ goto err_free_pwm;
+ }
+
+ input_dev->name = "max8997-haptic";
+ input_dev->id.version = 1;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->close = max8997_haptic_close;
+ input_set_drvdata(input_dev, chip);
+ input_set_capability(input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(input_dev, NULL,
+ max8997_haptic_play_effect);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to create FF device, error: %d\n",
+ error);
+ goto err_put_regulator;
+ }
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to register input device, error: %d\n",
+ error);
+ goto err_destroy_ff;
+ }
+
+ platform_set_drvdata(pdev, chip);
+ return 0;
+
+err_destroy_ff:
+ input_ff_destroy(input_dev);
+err_put_regulator:
+ regulator_put(chip->regulator);
+err_free_pwm:
+ if (chip->mode == MAX8997_EXTERNAL_MODE)
+ pwm_free(chip->pwm);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(chip);
+
+ return error;
+}
+
+static int max8997_haptic_remove(struct platform_device *pdev)
+{
+ struct max8997_haptic *chip = platform_get_drvdata(pdev);
+
+ input_unregister_device(chip->input_dev);
+ regulator_put(chip->regulator);
+
+ if (chip->mode == MAX8997_EXTERNAL_MODE)
+ pwm_free(chip->pwm);
+
+ kfree(chip);
+
+ return 0;
+}
+
+static int __maybe_unused max8997_haptic_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max8997_haptic *chip = platform_get_drvdata(pdev);
+
+ max8997_haptic_disable(chip);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(max8997_haptic_pm_ops, max8997_haptic_suspend, NULL);
+
+static const struct platform_device_id max8997_haptic_id[] = {
+ { "max8997-haptic", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, max8997_haptic_id);
+
+static struct platform_driver max8997_haptic_driver = {
+ .driver = {
+ .name = "max8997-haptic",
+ .pm = &max8997_haptic_pm_ops,
+ },
+ .probe = max8997_haptic_probe,
+ .remove = max8997_haptic_remove,
+ .id_table = max8997_haptic_id,
+};
+module_platform_driver(max8997_haptic_driver);
+
+MODULE_ALIAS("platform:max8997-haptic");
+MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
+MODULE_DESCRIPTION("max8997_haptic driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/mc13783-pwrbutton.c b/kernel/drivers/input/misc/mc13783-pwrbutton.c
new file mode 100644
index 000000000..afdf8ef25
--- /dev/null
+++ b/kernel/drivers/input/misc/mc13783-pwrbutton.c
@@ -0,0 +1,269 @@
+/**
+ * Copyright (C) 2011 Philippe Rétornaz
+ *
+ * Based on twl4030-pwrbutton driver by:
+ * Peter De Schrijver <peter.de-schrijver@nokia.com>
+ * Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+struct mc13783_pwrb {
+ struct input_dev *pwr;
+ struct mc13xxx *mc13783;
+#define MC13783_PWRB_B1_POL_INVERT (1 << 0)
+#define MC13783_PWRB_B2_POL_INVERT (1 << 1)
+#define MC13783_PWRB_B3_POL_INVERT (1 << 2)
+ int flags;
+ unsigned short keymap[3];
+};
+
+#define MC13783_REG_INTERRUPT_SENSE_1 5
+#define MC13783_IRQSENSE1_ONOFD1S (1 << 3)
+#define MC13783_IRQSENSE1_ONOFD2S (1 << 4)
+#define MC13783_IRQSENSE1_ONOFD3S (1 << 5)
+
+#define MC13783_REG_POWER_CONTROL_2 15
+#define MC13783_POWER_CONTROL_2_ON1BDBNC 4
+#define MC13783_POWER_CONTROL_2_ON2BDBNC 6
+#define MC13783_POWER_CONTROL_2_ON3BDBNC 8
+#define MC13783_POWER_CONTROL_2_ON1BRSTEN (1 << 1)
+#define MC13783_POWER_CONTROL_2_ON2BRSTEN (1 << 2)
+#define MC13783_POWER_CONTROL_2_ON3BRSTEN (1 << 3)
+
+static irqreturn_t button_irq(int irq, void *_priv)
+{
+ struct mc13783_pwrb *priv = _priv;
+ int val;
+
+ mc13xxx_irq_ack(priv->mc13783, irq);
+ mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val);
+
+ switch (irq) {
+ case MC13783_IRQ_ONOFD1:
+ val = val & MC13783_IRQSENSE1_ONOFD1S ? 1 : 0;
+ if (priv->flags & MC13783_PWRB_B1_POL_INVERT)
+ val ^= 1;
+ input_report_key(priv->pwr, priv->keymap[0], val);
+ break;
+
+ case MC13783_IRQ_ONOFD2:
+ val = val & MC13783_IRQSENSE1_ONOFD2S ? 1 : 0;
+ if (priv->flags & MC13783_PWRB_B2_POL_INVERT)
+ val ^= 1;
+ input_report_key(priv->pwr, priv->keymap[1], val);
+ break;
+
+ case MC13783_IRQ_ONOFD3:
+ val = val & MC13783_IRQSENSE1_ONOFD3S ? 1 : 0;
+ if (priv->flags & MC13783_PWRB_B3_POL_INVERT)
+ val ^= 1;
+ input_report_key(priv->pwr, priv->keymap[2], val);
+ break;
+ }
+
+ input_sync(priv->pwr);
+
+ return IRQ_HANDLED;
+}
+
+static int mc13783_pwrbutton_probe(struct platform_device *pdev)
+{
+ const struct mc13xxx_buttons_platform_data *pdata;
+ struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
+ struct input_dev *pwr;
+ struct mc13783_pwrb *priv;
+ int err = 0;
+ int reg = 0;
+
+ pdata = dev_get_platdata(&pdev->dev);
+ if (!pdata) {
+ dev_err(&pdev->dev, "missing platform data\n");
+ return -ENODEV;
+ }
+
+ pwr = input_allocate_device();
+ if (!pwr) {
+ dev_dbg(&pdev->dev, "Can't allocate power button\n");
+ return -ENOMEM;
+ }
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ err = -ENOMEM;
+ dev_dbg(&pdev->dev, "Can't allocate power button\n");
+ goto free_input_dev;
+ }
+
+ reg |= (pdata->b1on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON1BDBNC;
+ reg |= (pdata->b2on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON2BDBNC;
+ reg |= (pdata->b3on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON3BDBNC;
+
+ priv->pwr = pwr;
+ priv->mc13783 = mc13783;
+
+ mc13xxx_lock(mc13783);
+
+ if (pdata->b1on_flags & MC13783_BUTTON_ENABLE) {
+ priv->keymap[0] = pdata->b1on_key;
+ if (pdata->b1on_key != KEY_RESERVED)
+ __set_bit(pdata->b1on_key, pwr->keybit);
+
+ if (pdata->b1on_flags & MC13783_BUTTON_POL_INVERT)
+ priv->flags |= MC13783_PWRB_B1_POL_INVERT;
+
+ if (pdata->b1on_flags & MC13783_BUTTON_RESET_EN)
+ reg |= MC13783_POWER_CONTROL_2_ON1BRSTEN;
+
+ err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD1,
+ button_irq, "b1on", priv);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't request irq\n");
+ goto free_priv;
+ }
+ }
+
+ if (pdata->b2on_flags & MC13783_BUTTON_ENABLE) {
+ priv->keymap[1] = pdata->b2on_key;
+ if (pdata->b2on_key != KEY_RESERVED)
+ __set_bit(pdata->b2on_key, pwr->keybit);
+
+ if (pdata->b2on_flags & MC13783_BUTTON_POL_INVERT)
+ priv->flags |= MC13783_PWRB_B2_POL_INVERT;
+
+ if (pdata->b2on_flags & MC13783_BUTTON_RESET_EN)
+ reg |= MC13783_POWER_CONTROL_2_ON2BRSTEN;
+
+ err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD2,
+ button_irq, "b2on", priv);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't request irq\n");
+ goto free_irq_b1;
+ }
+ }
+
+ if (pdata->b3on_flags & MC13783_BUTTON_ENABLE) {
+ priv->keymap[2] = pdata->b3on_key;
+ if (pdata->b3on_key != KEY_RESERVED)
+ __set_bit(pdata->b3on_key, pwr->keybit);
+
+ if (pdata->b3on_flags & MC13783_BUTTON_POL_INVERT)
+ priv->flags |= MC13783_PWRB_B3_POL_INVERT;
+
+ if (pdata->b3on_flags & MC13783_BUTTON_RESET_EN)
+ reg |= MC13783_POWER_CONTROL_2_ON3BRSTEN;
+
+ err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD3,
+ button_irq, "b3on", priv);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't request irq: %d\n", err);
+ goto free_irq_b2;
+ }
+ }
+
+ mc13xxx_reg_rmw(mc13783, MC13783_REG_POWER_CONTROL_2, 0x3FE, reg);
+
+ mc13xxx_unlock(mc13783);
+
+ pwr->name = "mc13783_pwrbutton";
+ pwr->phys = "mc13783_pwrbutton/input0";
+ pwr->dev.parent = &pdev->dev;
+
+ pwr->keycode = priv->keymap;
+ pwr->keycodemax = ARRAY_SIZE(priv->keymap);
+ pwr->keycodesize = sizeof(priv->keymap[0]);
+ __set_bit(EV_KEY, pwr->evbit);
+
+ err = input_register_device(pwr);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't register power button: %d\n", err);
+ goto free_irq;
+ }
+
+ platform_set_drvdata(pdev, priv);
+
+ return 0;
+
+free_irq:
+ mc13xxx_lock(mc13783);
+
+ if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD3, priv);
+
+free_irq_b2:
+ if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD2, priv);
+
+free_irq_b1:
+ if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD1, priv);
+
+free_priv:
+ mc13xxx_unlock(mc13783);
+ kfree(priv);
+
+free_input_dev:
+ input_free_device(pwr);
+
+ return err;
+}
+
+static int mc13783_pwrbutton_remove(struct platform_device *pdev)
+{
+ struct mc13783_pwrb *priv = platform_get_drvdata(pdev);
+ const struct mc13xxx_buttons_platform_data *pdata;
+
+ pdata = dev_get_platdata(&pdev->dev);
+
+ mc13xxx_lock(priv->mc13783);
+
+ if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD3, priv);
+ if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD2, priv);
+ if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD1, priv);
+
+ mc13xxx_unlock(priv->mc13783);
+
+ input_unregister_device(priv->pwr);
+ kfree(priv);
+
+ return 0;
+}
+
+static struct platform_driver mc13783_pwrbutton_driver = {
+ .probe = mc13783_pwrbutton_probe,
+ .remove = mc13783_pwrbutton_remove,
+ .driver = {
+ .name = "mc13783-pwrbutton",
+ },
+};
+
+module_platform_driver(mc13783_pwrbutton_driver);
+
+MODULE_ALIAS("platform:mc13783-pwrbutton");
+MODULE_DESCRIPTION("MC13783 Power Button");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Philippe Retornaz");
diff --git a/kernel/drivers/input/misc/mma8450.c b/kernel/drivers/input/misc/mma8450.c
new file mode 100644
index 000000000..19c735744
--- /dev/null
+++ b/kernel/drivers/input/misc/mma8450.c
@@ -0,0 +1,238 @@
+/*
+ * Driver for Freescale's 3-Axis Accelerometer MMA8450
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input-polldev.h>
+#include <linux/of_device.h>
+
+#define MMA8450_DRV_NAME "mma8450"
+
+#define MODE_CHANGE_DELAY_MS 100
+#define POLL_INTERVAL 100
+#define POLL_INTERVAL_MAX 500
+
+/* register definitions */
+#define MMA8450_STATUS 0x00
+#define MMA8450_STATUS_ZXYDR 0x08
+
+#define MMA8450_OUT_X8 0x01
+#define MMA8450_OUT_Y8 0x02
+#define MMA8450_OUT_Z8 0x03
+
+#define MMA8450_OUT_X_LSB 0x05
+#define MMA8450_OUT_X_MSB 0x06
+#define MMA8450_OUT_Y_LSB 0x07
+#define MMA8450_OUT_Y_MSB 0x08
+#define MMA8450_OUT_Z_LSB 0x09
+#define MMA8450_OUT_Z_MSB 0x0a
+
+#define MMA8450_XYZ_DATA_CFG 0x16
+
+#define MMA8450_CTRL_REG1 0x38
+#define MMA8450_CTRL_REG2 0x39
+
+/* mma8450 status */
+struct mma8450 {
+ struct i2c_client *client;
+ struct input_polled_dev *idev;
+};
+
+static int mma8450_read(struct mma8450 *m, unsigned off)
+{
+ struct i2c_client *c = m->client;
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(c, off);
+ if (ret < 0)
+ dev_err(&c->dev,
+ "failed to read register 0x%02x, error %d\n",
+ off, ret);
+
+ return ret;
+}
+
+static int mma8450_write(struct mma8450 *m, unsigned off, u8 v)
+{
+ struct i2c_client *c = m->client;
+ int error;
+
+ error = i2c_smbus_write_byte_data(c, off, v);
+ if (error < 0) {
+ dev_err(&c->dev,
+ "failed to write to register 0x%02x, error %d\n",
+ off, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int mma8450_read_block(struct mma8450 *m, unsigned off,
+ u8 *buf, size_t size)
+{
+ struct i2c_client *c = m->client;
+ int err;
+
+ err = i2c_smbus_read_i2c_block_data(c, off, size, buf);
+ if (err < 0) {
+ dev_err(&c->dev,
+ "failed to read block data at 0x%02x, error %d\n",
+ MMA8450_OUT_X_LSB, err);
+ return err;
+ }
+
+ return 0;
+}
+
+static void mma8450_poll(struct input_polled_dev *dev)
+{
+ struct mma8450 *m = dev->private;
+ int x, y, z;
+ int ret;
+ u8 buf[6];
+
+ ret = mma8450_read(m, MMA8450_STATUS);
+ if (ret < 0)
+ return;
+
+ if (!(ret & MMA8450_STATUS_ZXYDR))
+ return;
+
+ ret = mma8450_read_block(m, MMA8450_OUT_X_LSB, buf, sizeof(buf));
+ if (ret < 0)
+ return;
+
+ x = ((int)(s8)buf[1] << 4) | (buf[0] & 0xf);
+ y = ((int)(s8)buf[3] << 4) | (buf[2] & 0xf);
+ z = ((int)(s8)buf[5] << 4) | (buf[4] & 0xf);
+
+ input_report_abs(dev->input, ABS_X, x);
+ input_report_abs(dev->input, ABS_Y, y);
+ input_report_abs(dev->input, ABS_Z, z);
+ input_sync(dev->input);
+}
+
+/* Initialize the MMA8450 chip */
+static void mma8450_open(struct input_polled_dev *dev)
+{
+ struct mma8450 *m = dev->private;
+ int err;
+
+ /* enable all events from X/Y/Z, no FIFO */
+ err = mma8450_write(m, MMA8450_XYZ_DATA_CFG, 0x07);
+ if (err)
+ return;
+
+ /*
+ * Sleep mode poll rate - 50Hz
+ * System output data rate - 400Hz
+ * Full scale selection - Active, +/- 2G
+ */
+ err = mma8450_write(m, MMA8450_CTRL_REG1, 0x01);
+ if (err < 0)
+ return;
+
+ msleep(MODE_CHANGE_DELAY_MS);
+}
+
+static void mma8450_close(struct input_polled_dev *dev)
+{
+ struct mma8450 *m = dev->private;
+
+ mma8450_write(m, MMA8450_CTRL_REG1, 0x00);
+ mma8450_write(m, MMA8450_CTRL_REG2, 0x01);
+}
+
+/*
+ * I2C init/probing/exit functions
+ */
+static int mma8450_probe(struct i2c_client *c,
+ const struct i2c_device_id *id)
+{
+ struct input_polled_dev *idev;
+ struct mma8450 *m;
+ int err;
+
+ m = devm_kzalloc(&c->dev, sizeof(*m), GFP_KERNEL);
+ if (!m)
+ return -ENOMEM;
+
+ idev = devm_input_allocate_polled_device(&c->dev);
+ if (!idev)
+ return -ENOMEM;
+
+ m->client = c;
+ m->idev = idev;
+
+ idev->private = m;
+ idev->input->name = MMA8450_DRV_NAME;
+ idev->input->id.bustype = BUS_I2C;
+ idev->poll = mma8450_poll;
+ idev->poll_interval = POLL_INTERVAL;
+ idev->poll_interval_max = POLL_INTERVAL_MAX;
+ idev->open = mma8450_open;
+ idev->close = mma8450_close;
+
+ __set_bit(EV_ABS, idev->input->evbit);
+ input_set_abs_params(idev->input, ABS_X, -2048, 2047, 32, 32);
+ input_set_abs_params(idev->input, ABS_Y, -2048, 2047, 32, 32);
+ input_set_abs_params(idev->input, ABS_Z, -2048, 2047, 32, 32);
+
+ err = input_register_polled_device(idev);
+ if (err) {
+ dev_err(&c->dev, "failed to register polled input device\n");
+ return err;
+ }
+
+ i2c_set_clientdata(c, m);
+
+ return 0;
+}
+
+static const struct i2c_device_id mma8450_id[] = {
+ { MMA8450_DRV_NAME, 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, mma8450_id);
+
+static const struct of_device_id mma8450_dt_ids[] = {
+ { .compatible = "fsl,mma8450", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mma8450_dt_ids);
+
+static struct i2c_driver mma8450_driver = {
+ .driver = {
+ .name = MMA8450_DRV_NAME,
+ .of_match_table = mma8450_dt_ids,
+ },
+ .probe = mma8450_probe,
+ .id_table = mma8450_id,
+};
+
+module_i2c_driver(mma8450_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MMA8450 3-Axis Accelerometer Driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/mpu3050.c b/kernel/drivers/input/misc/mpu3050.c
new file mode 100644
index 000000000..5e5051351
--- /dev/null
+++ b/kernel/drivers/input/misc/mpu3050.c
@@ -0,0 +1,482 @@
+/*
+ * MPU3050 Tri-axis gyroscope driver
+ *
+ * Copyright (C) 2011 Wistron Co.Ltd
+ * Joseph Lai <joseph_lai@wistron.com>
+ *
+ * Trimmed down by Alan Cox <alan@linux.intel.com> to produce this version
+ *
+ * This is a 'lite' version of the driver, while we consider the right way
+ * to present the other features to user space. In particular it requires the
+ * device has an IRQ, and it only provides an input interface, so is not much
+ * use for device orientation. A fuller version is available from the Meego
+ * tree.
+ *
+ * This program is based on bma023.c.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
+
+#define MPU3050_CHIP_ID 0x69
+
+#define MPU3050_AUTO_DELAY 1000
+
+#define MPU3050_MIN_VALUE -32768
+#define MPU3050_MAX_VALUE 32767
+
+#define MPU3050_DEFAULT_POLL_INTERVAL 200
+#define MPU3050_DEFAULT_FS_RANGE 3
+
+/* Register map */
+#define MPU3050_CHIP_ID_REG 0x00
+#define MPU3050_SMPLRT_DIV 0x15
+#define MPU3050_DLPF_FS_SYNC 0x16
+#define MPU3050_INT_CFG 0x17
+#define MPU3050_XOUT_H 0x1D
+#define MPU3050_PWR_MGM 0x3E
+#define MPU3050_PWR_MGM_POS 6
+
+/* Register bits */
+
+/* DLPF_FS_SYNC */
+#define MPU3050_EXT_SYNC_NONE 0x00
+#define MPU3050_EXT_SYNC_TEMP 0x20
+#define MPU3050_EXT_SYNC_GYROX 0x40
+#define MPU3050_EXT_SYNC_GYROY 0x60
+#define MPU3050_EXT_SYNC_GYROZ 0x80
+#define MPU3050_EXT_SYNC_ACCELX 0xA0
+#define MPU3050_EXT_SYNC_ACCELY 0xC0
+#define MPU3050_EXT_SYNC_ACCELZ 0xE0
+#define MPU3050_EXT_SYNC_MASK 0xE0
+#define MPU3050_FS_250DPS 0x00
+#define MPU3050_FS_500DPS 0x08
+#define MPU3050_FS_1000DPS 0x10
+#define MPU3050_FS_2000DPS 0x18
+#define MPU3050_FS_MASK 0x18
+#define MPU3050_DLPF_CFG_256HZ_NOLPF2 0x00
+#define MPU3050_DLPF_CFG_188HZ 0x01
+#define MPU3050_DLPF_CFG_98HZ 0x02
+#define MPU3050_DLPF_CFG_42HZ 0x03
+#define MPU3050_DLPF_CFG_20HZ 0x04
+#define MPU3050_DLPF_CFG_10HZ 0x05
+#define MPU3050_DLPF_CFG_5HZ 0x06
+#define MPU3050_DLPF_CFG_2100HZ_NOLPF 0x07
+#define MPU3050_DLPF_CFG_MASK 0x07
+/* INT_CFG */
+#define MPU3050_RAW_RDY_EN 0x01
+#define MPU3050_MPU_RDY_EN 0x02
+#define MPU3050_LATCH_INT_EN 0x04
+/* PWR_MGM */
+#define MPU3050_PWR_MGM_PLL_X 0x01
+#define MPU3050_PWR_MGM_PLL_Y 0x02
+#define MPU3050_PWR_MGM_PLL_Z 0x03
+#define MPU3050_PWR_MGM_CLKSEL 0x07
+#define MPU3050_PWR_MGM_STBY_ZG 0x08
+#define MPU3050_PWR_MGM_STBY_YG 0x10
+#define MPU3050_PWR_MGM_STBY_XG 0x20
+#define MPU3050_PWR_MGM_SLEEP 0x40
+#define MPU3050_PWR_MGM_RESET 0x80
+#define MPU3050_PWR_MGM_MASK 0x40
+
+struct axis_data {
+ s16 x;
+ s16 y;
+ s16 z;
+};
+
+struct mpu3050_sensor {
+ struct i2c_client *client;
+ struct device *dev;
+ struct input_dev *idev;
+};
+
+/**
+ * mpu3050_xyz_read_reg - read the axes values
+ * @buffer: provide register addr and get register
+ * @length: length of register
+ *
+ * Reads the register values in one transaction or returns a negative
+ * error code on failure.
+ */
+static int mpu3050_xyz_read_reg(struct i2c_client *client,
+ u8 *buffer, int length)
+{
+ /*
+ * Annoying we can't make this const because the i2c layer doesn't
+ * declare input buffers const.
+ */
+ char cmd = MPU3050_XOUT_H;
+ struct i2c_msg msg[] = {
+ {
+ .addr = client->addr,
+ .flags = 0,
+ .len = 1,
+ .buf = &cmd,
+ },
+ {
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .len = length,
+ .buf = buffer,
+ },
+ };
+
+ return i2c_transfer(client->adapter, msg, 2);
+}
+
+/**
+ * mpu3050_read_xyz - get co-ordinates from device
+ * @client: i2c address of sensor
+ * @coords: co-ordinates to update
+ *
+ * Return the converted X Y and Z co-ordinates from the sensor device
+ */
+static void mpu3050_read_xyz(struct i2c_client *client,
+ struct axis_data *coords)
+{
+ u16 buffer[3];
+
+ mpu3050_xyz_read_reg(client, (u8 *)buffer, 6);
+ coords->x = be16_to_cpu(buffer[0]);
+ coords->y = be16_to_cpu(buffer[1]);
+ coords->z = be16_to_cpu(buffer[2]);
+ dev_dbg(&client->dev, "%s: x %d, y %d, z %d\n", __func__,
+ coords->x, coords->y, coords->z);
+}
+
+/**
+ * mpu3050_set_power_mode - set the power mode
+ * @client: i2c client for the sensor
+ * @val: value to switch on/off of power, 1: normal power, 0: low power
+ *
+ * Put device to normal-power mode or low-power mode.
+ */
+static void mpu3050_set_power_mode(struct i2c_client *client, u8 val)
+{
+ u8 value;
+
+ value = i2c_smbus_read_byte_data(client, MPU3050_PWR_MGM);
+ value = (value & ~MPU3050_PWR_MGM_MASK) |
+ (((val << MPU3050_PWR_MGM_POS) & MPU3050_PWR_MGM_MASK) ^
+ MPU3050_PWR_MGM_MASK);
+ i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM, value);
+}
+
+/**
+ * mpu3050_input_open - called on input event open
+ * @input: input dev of opened device
+ *
+ * The input layer calls this function when input event is opened. The
+ * function will push the device to resume. Then, the device is ready
+ * to provide data.
+ */
+static int mpu3050_input_open(struct input_dev *input)
+{
+ struct mpu3050_sensor *sensor = input_get_drvdata(input);
+ int error;
+
+ pm_runtime_get(sensor->dev);
+
+ /* Enable interrupts */
+ error = i2c_smbus_write_byte_data(sensor->client, MPU3050_INT_CFG,
+ MPU3050_LATCH_INT_EN |
+ MPU3050_RAW_RDY_EN |
+ MPU3050_MPU_RDY_EN);
+ if (error < 0) {
+ pm_runtime_put(sensor->dev);
+ return error;
+ }
+
+ return 0;
+}
+
+/**
+ * mpu3050_input_close - called on input event close
+ * @input: input dev of closed device
+ *
+ * The input layer calls this function when input event is closed. The
+ * function will push the device to suspend.
+ */
+static void mpu3050_input_close(struct input_dev *input)
+{
+ struct mpu3050_sensor *sensor = input_get_drvdata(input);
+
+ pm_runtime_put(sensor->dev);
+}
+
+/**
+ * mpu3050_interrupt_thread - handle an IRQ
+ * @irq: interrupt numner
+ * @data: the sensor
+ *
+ * Called by the kernel single threaded after an interrupt occurs. Read
+ * the sensor data and generate an input event for it.
+ */
+static irqreturn_t mpu3050_interrupt_thread(int irq, void *data)
+{
+ struct mpu3050_sensor *sensor = data;
+ struct axis_data axis;
+
+ mpu3050_read_xyz(sensor->client, &axis);
+
+ input_report_abs(sensor->idev, ABS_X, axis.x);
+ input_report_abs(sensor->idev, ABS_Y, axis.y);
+ input_report_abs(sensor->idev, ABS_Z, axis.z);
+ input_sync(sensor->idev);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * mpu3050_hw_init - initialize hardware
+ * @sensor: the sensor
+ *
+ * Called during device probe; configures the sampling method.
+ */
+static int mpu3050_hw_init(struct mpu3050_sensor *sensor)
+{
+ struct i2c_client *client = sensor->client;
+ int ret;
+ u8 reg;
+
+ /* Reset */
+ ret = i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM,
+ MPU3050_PWR_MGM_RESET);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_smbus_read_byte_data(client, MPU3050_PWR_MGM);
+ if (ret < 0)
+ return ret;
+
+ ret &= ~MPU3050_PWR_MGM_CLKSEL;
+ ret |= MPU3050_PWR_MGM_PLL_Z;
+ ret = i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM, ret);
+ if (ret < 0)
+ return ret;
+
+ /* Output frequency divider. The poll interval */
+ ret = i2c_smbus_write_byte_data(client, MPU3050_SMPLRT_DIV,
+ MPU3050_DEFAULT_POLL_INTERVAL - 1);
+ if (ret < 0)
+ return ret;
+
+ /* Set low pass filter and full scale */
+ reg = MPU3050_DEFAULT_FS_RANGE;
+ reg |= MPU3050_DLPF_CFG_42HZ << 3;
+ reg |= MPU3050_EXT_SYNC_NONE << 5;
+ ret = i2c_smbus_write_byte_data(client, MPU3050_DLPF_FS_SYNC, reg);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/**
+ * mpu3050_probe - device detection callback
+ * @client: i2c client of found device
+ * @id: id match information
+ *
+ * The I2C layer calls us when it believes a sensor is present at this
+ * address. Probe to see if this is correct and to validate the device.
+ *
+ * If present install the relevant sysfs interfaces and input device.
+ */
+static int mpu3050_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct mpu3050_sensor *sensor;
+ struct input_dev *idev;
+ int ret;
+ int error;
+
+ sensor = kzalloc(sizeof(struct mpu3050_sensor), GFP_KERNEL);
+ idev = input_allocate_device();
+ if (!sensor || !idev) {
+ dev_err(&client->dev, "failed to allocate driver data\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ sensor->client = client;
+ sensor->dev = &client->dev;
+ sensor->idev = idev;
+
+ mpu3050_set_power_mode(client, 1);
+ msleep(10);
+
+ ret = i2c_smbus_read_byte_data(client, MPU3050_CHIP_ID_REG);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to detect device\n");
+ error = -ENXIO;
+ goto err_free_mem;
+ }
+
+ if (ret != MPU3050_CHIP_ID) {
+ dev_err(&client->dev, "unsupported chip id\n");
+ error = -ENXIO;
+ goto err_free_mem;
+ }
+
+ idev->name = "MPU3050";
+ idev->id.bustype = BUS_I2C;
+ idev->dev.parent = &client->dev;
+
+ idev->open = mpu3050_input_open;
+ idev->close = mpu3050_input_close;
+
+ __set_bit(EV_ABS, idev->evbit);
+ input_set_abs_params(idev, ABS_X,
+ MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
+ input_set_abs_params(idev, ABS_Y,
+ MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
+ input_set_abs_params(idev, ABS_Z,
+ MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
+
+ input_set_drvdata(idev, sensor);
+
+ pm_runtime_set_active(&client->dev);
+
+ error = mpu3050_hw_init(sensor);
+ if (error)
+ goto err_pm_set_suspended;
+
+ error = request_threaded_irq(client->irq,
+ NULL, mpu3050_interrupt_thread,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ "mpu3050", sensor);
+ if (error) {
+ dev_err(&client->dev,
+ "can't get IRQ %d, error %d\n", client->irq, error);
+ goto err_pm_set_suspended;
+ }
+
+ error = input_register_device(idev);
+ if (error) {
+ dev_err(&client->dev, "failed to register input device\n");
+ goto err_free_irq;
+ }
+
+ pm_runtime_enable(&client->dev);
+ pm_runtime_set_autosuspend_delay(&client->dev, MPU3050_AUTO_DELAY);
+ i2c_set_clientdata(client, sensor);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, sensor);
+err_pm_set_suspended:
+ pm_runtime_set_suspended(&client->dev);
+err_free_mem:
+ input_free_device(idev);
+ kfree(sensor);
+ return error;
+}
+
+/**
+ * mpu3050_remove - remove a sensor
+ * @client: i2c client of sensor being removed
+ *
+ * Our sensor is going away, clean up the resources.
+ */
+static int mpu3050_remove(struct i2c_client *client)
+{
+ struct mpu3050_sensor *sensor = i2c_get_clientdata(client);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+
+ free_irq(client->irq, sensor);
+ input_unregister_device(sensor->idev);
+ kfree(sensor);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+/**
+ * mpu3050_suspend - called on device suspend
+ * @dev: device being suspended
+ *
+ * Put the device into sleep mode before we suspend the machine.
+ */
+static int mpu3050_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ mpu3050_set_power_mode(client, 0);
+
+ return 0;
+}
+
+/**
+ * mpu3050_resume - called on device resume
+ * @dev: device being resumed
+ *
+ * Put the device into powered mode on resume.
+ */
+static int mpu3050_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ mpu3050_set_power_mode(client, 1);
+ msleep(100); /* wait for gyro chip resume */
+
+ return 0;
+}
+#endif
+
+static UNIVERSAL_DEV_PM_OPS(mpu3050_pm, mpu3050_suspend, mpu3050_resume, NULL);
+
+static const struct i2c_device_id mpu3050_ids[] = {
+ { "mpu3050", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mpu3050_ids);
+
+static const struct of_device_id mpu3050_of_match[] = {
+ { .compatible = "invn,mpu3050", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, mpu3050_of_match);
+
+static struct i2c_driver mpu3050_i2c_driver = {
+ .driver = {
+ .name = "mpu3050",
+ .owner = THIS_MODULE,
+ .pm = &mpu3050_pm,
+ .of_match_table = mpu3050_of_match,
+ },
+ .probe = mpu3050_probe,
+ .remove = mpu3050_remove,
+ .id_table = mpu3050_ids,
+};
+
+module_i2c_driver(mpu3050_i2c_driver);
+
+MODULE_AUTHOR("Wistron Corp.");
+MODULE_DESCRIPTION("MPU3050 Tri-axis gyroscope driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/palmas-pwrbutton.c b/kernel/drivers/input/misc/palmas-pwrbutton.c
new file mode 100644
index 000000000..1e1baed63
--- /dev/null
+++ b/kernel/drivers/input/misc/palmas-pwrbutton.c
@@ -0,0 +1,329 @@
+/*
+ * Texas Instruments' Palmas Power Button Input Driver
+ *
+ * Copyright (C) 2012-2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Girish S Ghongdemath
+ * Nishanth Menon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/palmas.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#define PALMAS_LPK_TIME_MASK 0x0c
+#define PALMAS_PWRON_DEBOUNCE_MASK 0x03
+#define PALMAS_PWR_KEY_Q_TIME_MS 20
+
+/**
+ * struct palmas_pwron - Palmas power on data
+ * @palmas: pointer to palmas device
+ * @input_dev: pointer to input device
+ * @input_work: work for detecting release of key
+ * @irq: irq that we are hooked on to
+ */
+struct palmas_pwron {
+ struct palmas *palmas;
+ struct input_dev *input_dev;
+ struct delayed_work input_work;
+ int irq;
+};
+
+/**
+ * struct palmas_pwron_config - configuration of palmas power on
+ * @long_press_time_val: value for long press h/w shutdown event
+ * @pwron_debounce_val: value for debounce of power button
+ */
+struct palmas_pwron_config {
+ u8 long_press_time_val;
+ u8 pwron_debounce_val;
+};
+
+/**
+ * palmas_power_button_work() - Detects the button release event
+ * @work: work item to detect button release
+ */
+static void palmas_power_button_work(struct work_struct *work)
+{
+ struct palmas_pwron *pwron = container_of(work,
+ struct palmas_pwron,
+ input_work.work);
+ struct input_dev *input_dev = pwron->input_dev;
+ unsigned int reg;
+ int error;
+
+ error = palmas_read(pwron->palmas, PALMAS_INTERRUPT_BASE,
+ PALMAS_INT1_LINE_STATE, &reg);
+ if (error) {
+ dev_err(input_dev->dev.parent,
+ "Cannot read palmas PWRON status: %d\n", error);
+ } else if (reg & BIT(1)) {
+ /* The button is released, report event. */
+ input_report_key(input_dev, KEY_POWER, 0);
+ input_sync(input_dev);
+ } else {
+ /* The button is still depressed, keep checking. */
+ schedule_delayed_work(&pwron->input_work,
+ msecs_to_jiffies(PALMAS_PWR_KEY_Q_TIME_MS));
+ }
+}
+
+/**
+ * pwron_irq() - button press isr
+ * @irq: irq
+ * @palmas_pwron: pwron struct
+ *
+ * Return: IRQ_HANDLED
+ */
+static irqreturn_t pwron_irq(int irq, void *palmas_pwron)
+{
+ struct palmas_pwron *pwron = palmas_pwron;
+ struct input_dev *input_dev = pwron->input_dev;
+
+ input_report_key(input_dev, KEY_POWER, 1);
+ pm_wakeup_event(input_dev->dev.parent, 0);
+ input_sync(input_dev);
+
+ mod_delayed_work(system_wq, &pwron->input_work,
+ msecs_to_jiffies(PALMAS_PWR_KEY_Q_TIME_MS));
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * palmas_pwron_params_ofinit() - device tree parameter parser
+ * @dev: palmas button device
+ * @config: configuration params that this fills up
+ */
+static void palmas_pwron_params_ofinit(struct device *dev,
+ struct palmas_pwron_config *config)
+{
+ struct device_node *np;
+ u32 val;
+ int i, error;
+ u8 lpk_times[] = { 6, 8, 10, 12 };
+ int pwr_on_deb_ms[] = { 15, 100, 500, 1000 };
+
+ memset(config, 0, sizeof(*config));
+
+ /* Default config parameters */
+ config->long_press_time_val = ARRAY_SIZE(lpk_times) - 1;
+
+ np = dev->of_node;
+ if (!np)
+ return;
+
+ error = of_property_read_u32(np, "ti,palmas-long-press-seconds", &val);
+ if (!error) {
+ for (i = 0; i < ARRAY_SIZE(lpk_times); i++) {
+ if (val <= lpk_times[i]) {
+ config->long_press_time_val = i;
+ break;
+ }
+ }
+ }
+
+ error = of_property_read_u32(np,
+ "ti,palmas-pwron-debounce-milli-seconds",
+ &val);
+ if (!error) {
+ for (i = 0; i < ARRAY_SIZE(pwr_on_deb_ms); i++) {
+ if (val <= pwr_on_deb_ms[i]) {
+ config->pwron_debounce_val = i;
+ break;
+ }
+ }
+ }
+
+ dev_info(dev, "h/w controlled shutdown duration=%d seconds\n",
+ lpk_times[config->long_press_time_val]);
+}
+
+/**
+ * palmas_pwron_probe() - probe
+ * @pdev: platform device for the button
+ *
+ * Return: 0 for successful probe else appropriate error
+ */
+static int palmas_pwron_probe(struct platform_device *pdev)
+{
+ struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
+ struct device *dev = &pdev->dev;
+ struct input_dev *input_dev;
+ struct palmas_pwron *pwron;
+ struct palmas_pwron_config config;
+ int val;
+ int error;
+
+ palmas_pwron_params_ofinit(dev, &config);
+
+ pwron = kzalloc(sizeof(*pwron), GFP_KERNEL);
+ if (!pwron)
+ return -ENOMEM;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(dev, "Can't allocate power button\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ input_dev->name = "palmas_pwron";
+ input_dev->phys = "palmas_pwron/input0";
+ input_dev->dev.parent = dev;
+
+ input_set_capability(input_dev, EV_KEY, KEY_POWER);
+
+ /*
+ * Setup default hardware shutdown option (long key press)
+ * and debounce.
+ */
+ val = config.long_press_time_val << __ffs(PALMAS_LPK_TIME_MASK);
+ val |= config.pwron_debounce_val << __ffs(PALMAS_PWRON_DEBOUNCE_MASK);
+ error = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE,
+ PALMAS_LONG_PRESS_KEY,
+ PALMAS_LPK_TIME_MASK |
+ PALMAS_PWRON_DEBOUNCE_MASK,
+ val);
+ if (error) {
+ dev_err(dev, "LONG_PRESS_KEY_UPDATE failed: %d\n", error);
+ goto err_free_input;
+ }
+
+ pwron->palmas = palmas;
+ pwron->input_dev = input_dev;
+
+ INIT_DELAYED_WORK(&pwron->input_work, palmas_power_button_work);
+
+ pwron->irq = platform_get_irq(pdev, 0);
+ error = request_threaded_irq(pwron->irq, NULL, pwron_irq,
+ IRQF_TRIGGER_HIGH |
+ IRQF_TRIGGER_LOW |
+ IRQF_ONESHOT,
+ dev_name(dev), pwron);
+ if (error) {
+ dev_err(dev, "Can't get IRQ for pwron: %d\n", error);
+ goto err_free_input;
+ }
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(dev, "Can't register power button: %d\n", error);
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(pdev, pwron);
+ device_init_wakeup(dev, true);
+
+ return 0;
+
+err_free_irq:
+ cancel_delayed_work_sync(&pwron->input_work);
+ free_irq(pwron->irq, pwron);
+err_free_input:
+ input_free_device(input_dev);
+err_free_mem:
+ kfree(pwron);
+ return error;
+}
+
+/**
+ * palmas_pwron_remove() - Cleanup on removal
+ * @pdev: platform device for the button
+ *
+ * Return: 0
+ */
+static int palmas_pwron_remove(struct platform_device *pdev)
+{
+ struct palmas_pwron *pwron = platform_get_drvdata(pdev);
+
+ free_irq(pwron->irq, pwron);
+ cancel_delayed_work_sync(&pwron->input_work);
+
+ input_unregister_device(pwron->input_dev);
+ kfree(pwron);
+
+ return 0;
+}
+
+/**
+ * palmas_pwron_suspend() - suspend handler
+ * @dev: power button device
+ *
+ * Cancel all pending work items for the power button, setup irq for wakeup
+ *
+ * Return: 0
+ */
+static int __maybe_unused palmas_pwron_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct palmas_pwron *pwron = platform_get_drvdata(pdev);
+
+ cancel_delayed_work_sync(&pwron->input_work);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(pwron->irq);
+
+ return 0;
+}
+
+/**
+ * palmas_pwron_resume() - resume handler
+ * @dev: power button device
+ *
+ * Just disable the wakeup capability of irq here.
+ *
+ * Return: 0
+ */
+static int __maybe_unused palmas_pwron_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct palmas_pwron *pwron = platform_get_drvdata(pdev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(pwron->irq);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(palmas_pwron_pm,
+ palmas_pwron_suspend, palmas_pwron_resume);
+
+#ifdef CONFIG_OF
+static const struct of_device_id of_palmas_pwr_match[] = {
+ { .compatible = "ti,palmas-pwrbutton" },
+ { },
+};
+
+MODULE_DEVICE_TABLE(of, of_palmas_pwr_match);
+#endif
+
+static struct platform_driver palmas_pwron_driver = {
+ .probe = palmas_pwron_probe,
+ .remove = palmas_pwron_remove,
+ .driver = {
+ .name = "palmas_pwrbutton",
+ .of_match_table = of_match_ptr(of_palmas_pwr_match),
+ .pm = &palmas_pwron_pm,
+ },
+};
+module_platform_driver(palmas_pwron_driver);
+
+MODULE_ALIAS("platform:palmas-pwrbutton");
+MODULE_DESCRIPTION("Palmas Power Button");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Texas Instruments Inc.");
diff --git a/kernel/drivers/input/misc/pcap_keys.c b/kernel/drivers/input/misc/pcap_keys.c
new file mode 100644
index 000000000..3b81daf67
--- /dev/null
+++ b/kernel/drivers/input/misc/pcap_keys.c
@@ -0,0 +1,131 @@
+/*
+ * Input driver for PCAP events:
+ * * Power key
+ * * Headphone button
+ *
+ * Copyright (c) 2008,2009 Ilya Petrov <ilya.muromec@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/mfd/ezx-pcap.h>
+#include <linux/slab.h>
+
+struct pcap_keys {
+ struct pcap_chip *pcap;
+ struct input_dev *input;
+};
+
+/* PCAP2 interrupts us on keypress */
+static irqreturn_t pcap_keys_handler(int irq, void *_pcap_keys)
+{
+ struct pcap_keys *pcap_keys = _pcap_keys;
+ int pirq = irq_to_pcap(pcap_keys->pcap, irq);
+ u32 pstat;
+
+ ezx_pcap_read(pcap_keys->pcap, PCAP_REG_PSTAT, &pstat);
+ pstat &= 1 << pirq;
+
+ switch (pirq) {
+ case PCAP_IRQ_ONOFF:
+ input_report_key(pcap_keys->input, KEY_POWER, !pstat);
+ break;
+ case PCAP_IRQ_MIC:
+ input_report_key(pcap_keys->input, KEY_HP, !pstat);
+ break;
+ }
+
+ input_sync(pcap_keys->input);
+
+ return IRQ_HANDLED;
+}
+
+static int pcap_keys_probe(struct platform_device *pdev)
+{
+ int err = -ENOMEM;
+ struct pcap_keys *pcap_keys;
+ struct input_dev *input_dev;
+
+ pcap_keys = kmalloc(sizeof(struct pcap_keys), GFP_KERNEL);
+ if (!pcap_keys)
+ return err;
+
+ pcap_keys->pcap = dev_get_drvdata(pdev->dev.parent);
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ goto fail;
+
+ pcap_keys->input = input_dev;
+
+ platform_set_drvdata(pdev, pcap_keys);
+ input_dev->name = pdev->name;
+ input_dev->phys = "pcap-keys/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(KEY_POWER, input_dev->keybit);
+ __set_bit(KEY_HP, input_dev->keybit);
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto fail_allocate;
+
+ err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF),
+ pcap_keys_handler, 0, "Power key", pcap_keys);
+ if (err)
+ goto fail_register;
+
+ err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC),
+ pcap_keys_handler, 0, "Headphone button", pcap_keys);
+ if (err)
+ goto fail_pwrkey;
+
+ return 0;
+
+fail_pwrkey:
+ free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
+fail_register:
+ input_unregister_device(input_dev);
+ goto fail;
+fail_allocate:
+ input_free_device(input_dev);
+fail:
+ kfree(pcap_keys);
+ return err;
+}
+
+static int pcap_keys_remove(struct platform_device *pdev)
+{
+ struct pcap_keys *pcap_keys = platform_get_drvdata(pdev);
+
+ free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
+ free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), pcap_keys);
+
+ input_unregister_device(pcap_keys->input);
+ kfree(pcap_keys);
+
+ return 0;
+}
+
+static struct platform_driver pcap_keys_device_driver = {
+ .probe = pcap_keys_probe,
+ .remove = pcap_keys_remove,
+ .driver = {
+ .name = "pcap-keys",
+ }
+};
+module_platform_driver(pcap_keys_device_driver);
+
+MODULE_DESCRIPTION("Motorola PCAP2 input events driver");
+MODULE_AUTHOR("Ilya Petrov <ilya.muromec@gmail.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcap_keys");
diff --git a/kernel/drivers/input/misc/pcf50633-input.c b/kernel/drivers/input/misc/pcf50633-input.c
new file mode 100644
index 000000000..db92f4f3c
--- /dev/null
+++ b/kernel/drivers/input/misc/pcf50633-input.c
@@ -0,0 +1,120 @@
+/* NXP PCF50633 Input Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/pcf50633/core.h>
+
+#define PCF50633_OOCSTAT_ONKEY 0x01
+#define PCF50633_REG_OOCSTAT 0x12
+#define PCF50633_REG_OOCMODE 0x10
+
+struct pcf50633_input {
+ struct pcf50633 *pcf;
+ struct input_dev *input_dev;
+};
+
+static void
+pcf50633_input_irq(int irq, void *data)
+{
+ struct pcf50633_input *input;
+ int onkey_released;
+
+ input = data;
+
+ /* We report only one event depending on the key press status */
+ onkey_released = pcf50633_reg_read(input->pcf, PCF50633_REG_OOCSTAT)
+ & PCF50633_OOCSTAT_ONKEY;
+
+ if (irq == PCF50633_IRQ_ONKEYF && !onkey_released)
+ input_report_key(input->input_dev, KEY_POWER, 1);
+ else if (irq == PCF50633_IRQ_ONKEYR && onkey_released)
+ input_report_key(input->input_dev, KEY_POWER, 0);
+
+ input_sync(input->input_dev);
+}
+
+static int pcf50633_input_probe(struct platform_device *pdev)
+{
+ struct pcf50633_input *input;
+ struct input_dev *input_dev;
+ int ret;
+
+
+ input = kzalloc(sizeof(*input), GFP_KERNEL);
+ if (!input)
+ return -ENOMEM;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ kfree(input);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, input);
+ input->pcf = dev_to_pcf50633(pdev->dev.parent);
+ input->input_dev = input_dev;
+
+ input_dev->name = "PCF50633 PMU events";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_PWR);
+ set_bit(KEY_POWER, input_dev->keybit);
+
+ ret = input_register_device(input_dev);
+ if (ret) {
+ input_free_device(input_dev);
+ kfree(input);
+ return ret;
+ }
+ pcf50633_register_irq(input->pcf, PCF50633_IRQ_ONKEYR,
+ pcf50633_input_irq, input);
+ pcf50633_register_irq(input->pcf, PCF50633_IRQ_ONKEYF,
+ pcf50633_input_irq, input);
+
+ return 0;
+}
+
+static int pcf50633_input_remove(struct platform_device *pdev)
+{
+ struct pcf50633_input *input = platform_get_drvdata(pdev);
+
+ pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYR);
+ pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYF);
+
+ input_unregister_device(input->input_dev);
+ kfree(input);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_input_driver = {
+ .driver = {
+ .name = "pcf50633-input",
+ },
+ .probe = pcf50633_input_probe,
+ .remove = pcf50633_input_remove,
+};
+module_platform_driver(pcf50633_input_driver);
+
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_DESCRIPTION("PCF50633 input driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-input");
diff --git a/kernel/drivers/input/misc/pcf8574_keypad.c b/kernel/drivers/input/misc/pcf8574_keypad.c
new file mode 100644
index 000000000..97f711a7b
--- /dev/null
+++ b/kernel/drivers/input/misc/pcf8574_keypad.c
@@ -0,0 +1,225 @@
+/*
+ * Driver for a keypad w/16 buttons connected to a PCF8574 I2C I/O expander
+ *
+ * Copyright 2005-2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#define DRV_NAME "pcf8574_keypad"
+
+static const unsigned char pcf8574_kp_btncode[] = {
+ [0] = KEY_RESERVED,
+ [1] = KEY_ENTER,
+ [2] = KEY_BACKSLASH,
+ [3] = KEY_0,
+ [4] = KEY_RIGHTBRACE,
+ [5] = KEY_C,
+ [6] = KEY_9,
+ [7] = KEY_8,
+ [8] = KEY_7,
+ [9] = KEY_B,
+ [10] = KEY_6,
+ [11] = KEY_5,
+ [12] = KEY_4,
+ [13] = KEY_A,
+ [14] = KEY_3,
+ [15] = KEY_2,
+ [16] = KEY_1
+};
+
+struct kp_data {
+ unsigned short btncode[ARRAY_SIZE(pcf8574_kp_btncode)];
+ struct input_dev *idev;
+ struct i2c_client *client;
+ char name[64];
+ char phys[32];
+ unsigned char laststate;
+};
+
+static short read_state(struct kp_data *lp)
+{
+ unsigned char x, y, a, b;
+
+ i2c_smbus_write_byte(lp->client, 240);
+ x = 0xF & (~(i2c_smbus_read_byte(lp->client) >> 4));
+
+ i2c_smbus_write_byte(lp->client, 15);
+ y = 0xF & (~i2c_smbus_read_byte(lp->client));
+
+ for (a = 0; x > 0; a++)
+ x = x >> 1;
+ for (b = 0; y > 0; b++)
+ y = y >> 1;
+
+ return ((a - 1) * 4) + b;
+}
+
+static irqreturn_t pcf8574_kp_irq_handler(int irq, void *dev_id)
+{
+ struct kp_data *lp = dev_id;
+ unsigned char nextstate = read_state(lp);
+
+ if (lp->laststate != nextstate) {
+ int key_down = nextstate < ARRAY_SIZE(lp->btncode);
+ unsigned short keycode = key_down ?
+ lp->btncode[nextstate] : lp->btncode[lp->laststate];
+
+ input_report_key(lp->idev, keycode, key_down);
+ input_sync(lp->idev);
+
+ lp->laststate = nextstate;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int pcf8574_kp_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ int i, ret;
+ struct input_dev *idev;
+ struct kp_data *lp;
+
+ if (i2c_smbus_write_byte(client, 240) < 0) {
+ dev_err(&client->dev, "probe: write fail\n");
+ return -ENODEV;
+ }
+
+ lp = kzalloc(sizeof(*lp), GFP_KERNEL);
+ if (!lp)
+ return -ENOMEM;
+
+ idev = input_allocate_device();
+ if (!idev) {
+ dev_err(&client->dev, "Can't allocate input device\n");
+ ret = -ENOMEM;
+ goto fail_allocate;
+ }
+
+ lp->idev = idev;
+ lp->client = client;
+
+ idev->evbit[0] = BIT_MASK(EV_KEY);
+ idev->keycode = lp->btncode;
+ idev->keycodesize = sizeof(lp->btncode[0]);
+ idev->keycodemax = ARRAY_SIZE(lp->btncode);
+
+ for (i = 0; i < ARRAY_SIZE(pcf8574_kp_btncode); i++) {
+ if (lp->btncode[i] <= KEY_MAX) {
+ lp->btncode[i] = pcf8574_kp_btncode[i];
+ __set_bit(lp->btncode[i], idev->keybit);
+ }
+ }
+ __clear_bit(KEY_RESERVED, idev->keybit);
+
+ sprintf(lp->name, DRV_NAME);
+ sprintf(lp->phys, "kp_data/input0");
+
+ idev->name = lp->name;
+ idev->phys = lp->phys;
+ idev->id.bustype = BUS_I2C;
+ idev->id.vendor = 0x0001;
+ idev->id.product = 0x0001;
+ idev->id.version = 0x0100;
+
+ lp->laststate = read_state(lp);
+
+ ret = request_threaded_irq(client->irq, NULL, pcf8574_kp_irq_handler,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ DRV_NAME, lp);
+ if (ret) {
+ dev_err(&client->dev, "IRQ %d is not free\n", client->irq);
+ goto fail_free_device;
+ }
+
+ ret = input_register_device(idev);
+ if (ret) {
+ dev_err(&client->dev, "input_register_device() failed\n");
+ goto fail_free_irq;
+ }
+
+ i2c_set_clientdata(client, lp);
+ return 0;
+
+ fail_free_irq:
+ free_irq(client->irq, lp);
+ fail_free_device:
+ input_free_device(idev);
+ fail_allocate:
+ kfree(lp);
+
+ return ret;
+}
+
+static int pcf8574_kp_remove(struct i2c_client *client)
+{
+ struct kp_data *lp = i2c_get_clientdata(client);
+
+ free_irq(client->irq, lp);
+
+ input_unregister_device(lp->idev);
+ kfree(lp);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int pcf8574_kp_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ enable_irq(client->irq);
+
+ return 0;
+}
+
+static int pcf8574_kp_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ disable_irq(client->irq);
+
+ return 0;
+}
+
+static const struct dev_pm_ops pcf8574_kp_pm_ops = {
+ .suspend = pcf8574_kp_suspend,
+ .resume = pcf8574_kp_resume,
+};
+
+#else
+# define pcf8574_kp_resume NULL
+# define pcf8574_kp_suspend NULL
+#endif
+
+static const struct i2c_device_id pcf8574_kp_id[] = {
+ { DRV_NAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pcf8574_kp_id);
+
+static struct i2c_driver pcf8574_kp_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &pcf8574_kp_pm_ops,
+#endif
+ },
+ .probe = pcf8574_kp_probe,
+ .remove = pcf8574_kp_remove,
+ .id_table = pcf8574_kp_id,
+};
+
+module_i2c_driver(pcf8574_kp_driver);
+
+MODULE_AUTHOR("Michael Hennerich");
+MODULE_DESCRIPTION("Keypad input driver for 16 keys connected to PCF8574");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/pcspkr.c b/kernel/drivers/input/misc/pcspkr.c
new file mode 100644
index 000000000..72b1fc3ab
--- /dev/null
+++ b/kernel/drivers/input/misc/pcspkr.c
@@ -0,0 +1,135 @@
+/*
+ * PC Speaker beeper driver for Linux
+ *
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i8253.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/timex.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("PC Speaker beeper driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcspkr");
+
+static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = PIT_TICK_RATE / value;
+
+ raw_spin_lock_irqsave(&i8253_lock, flags);
+
+ if (count) {
+ /* set command for counter 2, 2 byte write */
+ outb_p(0xB6, 0x43);
+ /* select desired HZ */
+ outb_p(count & 0xff, 0x42);
+ outb((count >> 8) & 0xff, 0x42);
+ /* enable counter 2 */
+ outb_p(inb_p(0x61) | 3, 0x61);
+ } else {
+ /* disable counter 2 */
+ outb(inb_p(0x61) & 0xFC, 0x61);
+ }
+
+ raw_spin_unlock_irqrestore(&i8253_lock, flags);
+
+ return 0;
+}
+
+static int pcspkr_probe(struct platform_device *dev)
+{
+ struct input_dev *pcspkr_dev;
+ int err;
+
+ pcspkr_dev = input_allocate_device();
+ if (!pcspkr_dev)
+ return -ENOMEM;
+
+ pcspkr_dev->name = "PC Speaker";
+ pcspkr_dev->phys = "isa0061/input0";
+ pcspkr_dev->id.bustype = BUS_ISA;
+ pcspkr_dev->id.vendor = 0x001f;
+ pcspkr_dev->id.product = 0x0001;
+ pcspkr_dev->id.version = 0x0100;
+ pcspkr_dev->dev.parent = &dev->dev;
+
+ pcspkr_dev->evbit[0] = BIT_MASK(EV_SND);
+ pcspkr_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+ pcspkr_dev->event = pcspkr_event;
+
+ err = input_register_device(pcspkr_dev);
+ if (err) {
+ input_free_device(pcspkr_dev);
+ return err;
+ }
+
+ platform_set_drvdata(dev, pcspkr_dev);
+
+ return 0;
+}
+
+static int pcspkr_remove(struct platform_device *dev)
+{
+ struct input_dev *pcspkr_dev = platform_get_drvdata(dev);
+
+ input_unregister_device(pcspkr_dev);
+ /* turn off the speaker */
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static int pcspkr_suspend(struct device *dev)
+{
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static void pcspkr_shutdown(struct platform_device *dev)
+{
+ /* turn off the speaker */
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+}
+
+static const struct dev_pm_ops pcspkr_pm_ops = {
+ .suspend = pcspkr_suspend,
+};
+
+static struct platform_driver pcspkr_platform_driver = {
+ .driver = {
+ .name = "pcspkr",
+ .pm = &pcspkr_pm_ops,
+ },
+ .probe = pcspkr_probe,
+ .remove = pcspkr_remove,
+ .shutdown = pcspkr_shutdown,
+};
+module_platform_driver(pcspkr_platform_driver);
+
diff --git a/kernel/drivers/input/misc/pm8941-pwrkey.c b/kernel/drivers/input/misc/pm8941-pwrkey.c
new file mode 100644
index 000000000..867db8a91
--- /dev/null
+++ b/kernel/drivers/input/misc/pm8941-pwrkey.c
@@ -0,0 +1,293 @@
+/*
+ * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2014, Sony Mobile Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/log2.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reboot.h>
+#include <linux/regmap.h>
+
+#define PON_REV2 0x01
+
+#define PON_RT_STS 0x10
+#define PON_KPDPWR_N_SET BIT(0)
+
+#define PON_PS_HOLD_RST_CTL 0x5a
+#define PON_PS_HOLD_RST_CTL2 0x5b
+#define PON_PS_HOLD_ENABLE BIT(7)
+#define PON_PS_HOLD_TYPE_MASK 0x0f
+#define PON_PS_HOLD_TYPE_SHUTDOWN 4
+#define PON_PS_HOLD_TYPE_HARD_RESET 7
+
+#define PON_PULL_CTL 0x70
+#define PON_KPDPWR_PULL_UP BIT(1)
+
+#define PON_DBC_CTL 0x71
+#define PON_DBC_DELAY_MASK 0x7
+
+
+struct pm8941_pwrkey {
+ struct device *dev;
+ int irq;
+ u32 baseaddr;
+ struct regmap *regmap;
+ struct input_dev *input;
+
+ unsigned int revision;
+ struct notifier_block reboot_notifier;
+};
+
+static int pm8941_reboot_notify(struct notifier_block *nb,
+ unsigned long code, void *unused)
+{
+ struct pm8941_pwrkey *pwrkey = container_of(nb, struct pm8941_pwrkey,
+ reboot_notifier);
+ unsigned int enable_reg;
+ unsigned int reset_type;
+ int error;
+
+ /* PMICs with revision 0 have the enable bit in same register as ctrl */
+ if (pwrkey->revision == 0)
+ enable_reg = PON_PS_HOLD_RST_CTL;
+ else
+ enable_reg = PON_PS_HOLD_RST_CTL2;
+
+ error = regmap_update_bits(pwrkey->regmap,
+ pwrkey->baseaddr + enable_reg,
+ PON_PS_HOLD_ENABLE,
+ 0);
+ if (error)
+ dev_err(pwrkey->dev,
+ "unable to clear ps hold reset enable: %d\n",
+ error);
+
+ /*
+ * Updates of PON_PS_HOLD_ENABLE requires 3 sleep cycles between
+ * writes.
+ */
+ usleep_range(100, 1000);
+
+ switch (code) {
+ case SYS_HALT:
+ case SYS_POWER_OFF:
+ reset_type = PON_PS_HOLD_TYPE_SHUTDOWN;
+ break;
+ case SYS_RESTART:
+ default:
+ reset_type = PON_PS_HOLD_TYPE_HARD_RESET;
+ break;
+ };
+
+ error = regmap_update_bits(pwrkey->regmap,
+ pwrkey->baseaddr + PON_PS_HOLD_RST_CTL,
+ PON_PS_HOLD_TYPE_MASK,
+ reset_type);
+ if (error)
+ dev_err(pwrkey->dev, "unable to set ps hold reset type: %d\n",
+ error);
+
+ error = regmap_update_bits(pwrkey->regmap,
+ pwrkey->baseaddr + enable_reg,
+ PON_PS_HOLD_ENABLE,
+ PON_PS_HOLD_ENABLE);
+ if (error)
+ dev_err(pwrkey->dev, "unable to re-set enable: %d\n", error);
+
+ return NOTIFY_DONE;
+}
+
+static irqreturn_t pm8941_pwrkey_irq(int irq, void *_data)
+{
+ struct pm8941_pwrkey *pwrkey = _data;
+ unsigned int sts;
+ int error;
+
+ error = regmap_read(pwrkey->regmap,
+ pwrkey->baseaddr + PON_RT_STS, &sts);
+ if (error)
+ return IRQ_HANDLED;
+
+ input_report_key(pwrkey->input, KEY_POWER, !!(sts & PON_KPDPWR_N_SET));
+ input_sync(pwrkey->input);
+
+ return IRQ_HANDLED;
+}
+
+static int __maybe_unused pm8941_pwrkey_suspend(struct device *dev)
+{
+ struct pm8941_pwrkey *pwrkey = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(pwrkey->irq);
+
+ return 0;
+}
+
+static int __maybe_unused pm8941_pwrkey_resume(struct device *dev)
+{
+ struct pm8941_pwrkey *pwrkey = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(pwrkey->irq);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(pm8941_pwr_key_pm_ops,
+ pm8941_pwrkey_suspend, pm8941_pwrkey_resume);
+
+static int pm8941_pwrkey_probe(struct platform_device *pdev)
+{
+ struct pm8941_pwrkey *pwrkey;
+ bool pull_up;
+ u32 req_delay;
+ int error;
+
+ if (of_property_read_u32(pdev->dev.of_node, "debounce", &req_delay))
+ req_delay = 15625;
+
+ if (req_delay > 2000000 || req_delay == 0) {
+ dev_err(&pdev->dev, "invalid debounce time: %u\n", req_delay);
+ return -EINVAL;
+ }
+
+ pull_up = of_property_read_bool(pdev->dev.of_node, "bias-pull-up");
+
+ pwrkey = devm_kzalloc(&pdev->dev, sizeof(*pwrkey), GFP_KERNEL);
+ if (!pwrkey)
+ return -ENOMEM;
+
+ pwrkey->dev = &pdev->dev;
+
+ pwrkey->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!pwrkey->regmap) {
+ dev_err(&pdev->dev, "failed to locate regmap\n");
+ return -ENODEV;
+ }
+
+ pwrkey->irq = platform_get_irq(pdev, 0);
+ if (pwrkey->irq < 0) {
+ dev_err(&pdev->dev, "failed to get irq\n");
+ return pwrkey->irq;
+ }
+
+ error = of_property_read_u32(pdev->dev.of_node, "reg",
+ &pwrkey->baseaddr);
+ if (error)
+ return error;
+
+ error = regmap_read(pwrkey->regmap, pwrkey->baseaddr + PON_REV2,
+ &pwrkey->revision);
+ if (error) {
+ dev_err(&pdev->dev, "failed to set debounce: %d\n", error);
+ return error;
+ }
+
+ pwrkey->input = devm_input_allocate_device(&pdev->dev);
+ if (!pwrkey->input) {
+ dev_dbg(&pdev->dev, "unable to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_set_capability(pwrkey->input, EV_KEY, KEY_POWER);
+
+ pwrkey->input->name = "pm8941_pwrkey";
+ pwrkey->input->phys = "pm8941_pwrkey/input0";
+
+ req_delay = (req_delay << 6) / USEC_PER_SEC;
+ req_delay = ilog2(req_delay);
+
+ error = regmap_update_bits(pwrkey->regmap,
+ pwrkey->baseaddr + PON_DBC_CTL,
+ PON_DBC_DELAY_MASK,
+ req_delay);
+ if (error) {
+ dev_err(&pdev->dev, "failed to set debounce: %d\n", error);
+ return error;
+ }
+
+ error = regmap_update_bits(pwrkey->regmap,
+ pwrkey->baseaddr + PON_PULL_CTL,
+ PON_KPDPWR_PULL_UP,
+ pull_up ? PON_KPDPWR_PULL_UP : 0);
+ if (error) {
+ dev_err(&pdev->dev, "failed to set pull: %d\n", error);
+ return error;
+ }
+
+ error = devm_request_threaded_irq(&pdev->dev, pwrkey->irq,
+ NULL, pm8941_pwrkey_irq,
+ IRQF_ONESHOT,
+ "pm8941_pwrkey", pwrkey);
+ if (error) {
+ dev_err(&pdev->dev, "failed requesting IRQ: %d\n", error);
+ return error;
+ }
+
+ error = input_register_device(pwrkey->input);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device: %d\n",
+ error);
+ return error;
+ }
+
+ pwrkey->reboot_notifier.notifier_call = pm8941_reboot_notify,
+ error = register_reboot_notifier(&pwrkey->reboot_notifier);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register reboot notifier: %d\n",
+ error);
+ return error;
+ }
+
+ platform_set_drvdata(pdev, pwrkey);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+}
+
+static int pm8941_pwrkey_remove(struct platform_device *pdev)
+{
+ struct pm8941_pwrkey *pwrkey = platform_get_drvdata(pdev);
+
+ device_init_wakeup(&pdev->dev, 0);
+ unregister_reboot_notifier(&pwrkey->reboot_notifier);
+
+ return 0;
+}
+
+static const struct of_device_id pm8941_pwr_key_id_table[] = {
+ { .compatible = "qcom,pm8941-pwrkey" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, pm8941_pwr_key_id_table);
+
+static struct platform_driver pm8941_pwrkey_driver = {
+ .probe = pm8941_pwrkey_probe,
+ .remove = pm8941_pwrkey_remove,
+ .driver = {
+ .name = "pm8941-pwrkey",
+ .pm = &pm8941_pwr_key_pm_ops,
+ .of_match_table = of_match_ptr(pm8941_pwr_key_id_table),
+ },
+};
+module_platform_driver(pm8941_pwrkey_driver);
+
+MODULE_DESCRIPTION("PM8941 Power Key driver");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/input/misc/pm8xxx-vibrator.c b/kernel/drivers/input/misc/pm8xxx-vibrator.c
new file mode 100644
index 000000000..511387715
--- /dev/null
+++ b/kernel/drivers/input/misc/pm8xxx-vibrator.c
@@ -0,0 +1,234 @@
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+
+#define VIB_DRV 0x4A
+
+#define VIB_DRV_SEL_MASK 0xf8
+#define VIB_DRV_SEL_SHIFT 0x03
+#define VIB_DRV_EN_MANUAL_MASK 0xfc
+
+#define VIB_MAX_LEVEL_mV (3100)
+#define VIB_MIN_LEVEL_mV (1200)
+#define VIB_MAX_LEVELS (VIB_MAX_LEVEL_mV - VIB_MIN_LEVEL_mV)
+
+#define MAX_FF_SPEED 0xff
+
+/**
+ * struct pm8xxx_vib - structure to hold vibrator data
+ * @vib_input_dev: input device supporting force feedback
+ * @work: work structure to set the vibration parameters
+ * @regmap: regmap for register read/write
+ * @speed: speed of vibration set from userland
+ * @active: state of vibrator
+ * @level: level of vibration to set in the chip
+ * @reg_vib_drv: VIB_DRV register value
+ */
+struct pm8xxx_vib {
+ struct input_dev *vib_input_dev;
+ struct work_struct work;
+ struct regmap *regmap;
+ int speed;
+ int level;
+ bool active;
+ u8 reg_vib_drv;
+};
+
+/**
+ * pm8xxx_vib_set - handler to start/stop vibration
+ * @vib: pointer to vibrator structure
+ * @on: state to set
+ */
+static int pm8xxx_vib_set(struct pm8xxx_vib *vib, bool on)
+{
+ int rc;
+ unsigned int val = vib->reg_vib_drv;
+
+ if (on)
+ val |= ((vib->level << VIB_DRV_SEL_SHIFT) & VIB_DRV_SEL_MASK);
+ else
+ val &= ~VIB_DRV_SEL_MASK;
+
+ rc = regmap_write(vib->regmap, VIB_DRV, val);
+ if (rc < 0)
+ return rc;
+
+ vib->reg_vib_drv = val;
+ return 0;
+}
+
+/**
+ * pm8xxx_work_handler - worker to set vibration level
+ * @work: pointer to work_struct
+ */
+static void pm8xxx_work_handler(struct work_struct *work)
+{
+ struct pm8xxx_vib *vib = container_of(work, struct pm8xxx_vib, work);
+ int rc;
+ unsigned int val;
+
+ rc = regmap_read(vib->regmap, VIB_DRV, &val);
+ if (rc < 0)
+ return;
+
+ /*
+ * pmic vibrator supports voltage ranges from 1.2 to 3.1V, so
+ * scale the level to fit into these ranges.
+ */
+ if (vib->speed) {
+ vib->active = true;
+ vib->level = ((VIB_MAX_LEVELS * vib->speed) / MAX_FF_SPEED) +
+ VIB_MIN_LEVEL_mV;
+ vib->level /= 100;
+ } else {
+ vib->active = false;
+ vib->level = VIB_MIN_LEVEL_mV / 100;
+ }
+
+ pm8xxx_vib_set(vib, vib->active);
+}
+
+/**
+ * pm8xxx_vib_close - callback of input close callback
+ * @dev: input device pointer
+ *
+ * Turns off the vibrator.
+ */
+static void pm8xxx_vib_close(struct input_dev *dev)
+{
+ struct pm8xxx_vib *vib = input_get_drvdata(dev);
+
+ cancel_work_sync(&vib->work);
+ if (vib->active)
+ pm8xxx_vib_set(vib, false);
+}
+
+/**
+ * pm8xxx_vib_play_effect - function to handle vib effects.
+ * @dev: input device pointer
+ * @data: data of effect
+ * @effect: effect to play
+ *
+ * Currently this driver supports only rumble effects.
+ */
+static int pm8xxx_vib_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct pm8xxx_vib *vib = input_get_drvdata(dev);
+
+ vib->speed = effect->u.rumble.strong_magnitude >> 8;
+ if (!vib->speed)
+ vib->speed = effect->u.rumble.weak_magnitude >> 9;
+
+ schedule_work(&vib->work);
+
+ return 0;
+}
+
+static int pm8xxx_vib_probe(struct platform_device *pdev)
+{
+ struct pm8xxx_vib *vib;
+ struct input_dev *input_dev;
+ int error;
+ unsigned int val;
+
+ vib = devm_kzalloc(&pdev->dev, sizeof(*vib), GFP_KERNEL);
+ if (!vib)
+ return -ENOMEM;
+
+ vib->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!vib->regmap)
+ return -ENODEV;
+
+ input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!input_dev)
+ return -ENOMEM;
+
+ INIT_WORK(&vib->work, pm8xxx_work_handler);
+ vib->vib_input_dev = input_dev;
+
+ /* operate in manual mode */
+ error = regmap_read(vib->regmap, VIB_DRV, &val);
+ if (error < 0)
+ return error;
+
+ val &= ~VIB_DRV_EN_MANUAL_MASK;
+ error = regmap_write(vib->regmap, VIB_DRV, val);
+ if (error < 0)
+ return error;
+
+ vib->reg_vib_drv = val;
+
+ input_dev->name = "pm8xxx_vib_ffmemless";
+ input_dev->id.version = 1;
+ input_dev->close = pm8xxx_vib_close;
+ input_set_drvdata(input_dev, vib);
+ input_set_capability(vib->vib_input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(input_dev, NULL,
+ pm8xxx_vib_play_effect);
+ if (error) {
+ dev_err(&pdev->dev,
+ "couldn't register vibrator as FF device\n");
+ return error;
+ }
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "couldn't register input device\n");
+ return error;
+ }
+
+ platform_set_drvdata(pdev, vib);
+ return 0;
+}
+
+static int __maybe_unused pm8xxx_vib_suspend(struct device *dev)
+{
+ struct pm8xxx_vib *vib = dev_get_drvdata(dev);
+
+ /* Turn off the vibrator */
+ pm8xxx_vib_set(vib, false);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(pm8xxx_vib_pm_ops, pm8xxx_vib_suspend, NULL);
+
+static const struct of_device_id pm8xxx_vib_id_table[] = {
+ { .compatible = "qcom,pm8058-vib" },
+ { .compatible = "qcom,pm8921-vib" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, pm8xxx_vib_id_table);
+
+static struct platform_driver pm8xxx_vib_driver = {
+ .probe = pm8xxx_vib_probe,
+ .driver = {
+ .name = "pm8xxx-vib",
+ .pm = &pm8xxx_vib_pm_ops,
+ .of_match_table = pm8xxx_vib_id_table,
+ },
+};
+module_platform_driver(pm8xxx_vib_driver);
+
+MODULE_ALIAS("platform:pm8xxx_vib");
+MODULE_DESCRIPTION("PMIC8xxx vibrator driver based on ff-memless framework");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Amy Maloche <amaloche@codeaurora.org>");
diff --git a/kernel/drivers/input/misc/pmic8xxx-pwrkey.c b/kernel/drivers/input/misc/pmic8xxx-pwrkey.c
new file mode 100644
index 000000000..c4ca20e63
--- /dev/null
+++ b/kernel/drivers/input/misc/pmic8xxx-pwrkey.c
@@ -0,0 +1,205 @@
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/log2.h>
+#include <linux/of.h>
+
+#define PON_CNTL_1 0x1C
+#define PON_CNTL_PULL_UP BIT(7)
+#define PON_CNTL_TRIG_DELAY_MASK (0x7)
+
+/**
+ * struct pmic8xxx_pwrkey - pmic8xxx pwrkey information
+ * @key_press_irq: key press irq number
+ */
+struct pmic8xxx_pwrkey {
+ int key_press_irq;
+};
+
+static irqreturn_t pwrkey_press_irq(int irq, void *_pwr)
+{
+ struct input_dev *pwr = _pwr;
+
+ input_report_key(pwr, KEY_POWER, 1);
+ input_sync(pwr);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pwrkey_release_irq(int irq, void *_pwr)
+{
+ struct input_dev *pwr = _pwr;
+
+ input_report_key(pwr, KEY_POWER, 0);
+ input_sync(pwr);
+
+ return IRQ_HANDLED;
+}
+
+static int __maybe_unused pmic8xxx_pwrkey_suspend(struct device *dev)
+{
+ struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(pwrkey->key_press_irq);
+
+ return 0;
+}
+
+static int __maybe_unused pmic8xxx_pwrkey_resume(struct device *dev)
+{
+ struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(pwrkey->key_press_irq);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(pm8xxx_pwr_key_pm_ops,
+ pmic8xxx_pwrkey_suspend, pmic8xxx_pwrkey_resume);
+
+static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
+{
+ struct input_dev *pwr;
+ int key_release_irq = platform_get_irq(pdev, 0);
+ int key_press_irq = platform_get_irq(pdev, 1);
+ int err;
+ unsigned int delay;
+ unsigned int pon_cntl;
+ struct regmap *regmap;
+ struct pmic8xxx_pwrkey *pwrkey;
+ u32 kpd_delay;
+ bool pull_up;
+
+ if (of_property_read_u32(pdev->dev.of_node, "debounce", &kpd_delay))
+ kpd_delay = 15625;
+
+ if (kpd_delay > 62500 || kpd_delay == 0) {
+ dev_err(&pdev->dev, "invalid power key trigger delay\n");
+ return -EINVAL;
+ }
+
+ pull_up = of_property_read_bool(pdev->dev.of_node, "pull-up");
+
+ regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!regmap) {
+ dev_err(&pdev->dev, "failed to locate regmap for the device\n");
+ return -ENODEV;
+ }
+
+ pwrkey = devm_kzalloc(&pdev->dev, sizeof(*pwrkey), GFP_KERNEL);
+ if (!pwrkey)
+ return -ENOMEM;
+
+ pwrkey->key_press_irq = key_press_irq;
+
+ pwr = devm_input_allocate_device(&pdev->dev);
+ if (!pwr) {
+ dev_dbg(&pdev->dev, "Can't allocate power button\n");
+ return -ENOMEM;
+ }
+
+ input_set_capability(pwr, EV_KEY, KEY_POWER);
+
+ pwr->name = "pmic8xxx_pwrkey";
+ pwr->phys = "pmic8xxx_pwrkey/input0";
+
+ delay = (kpd_delay << 10) / USEC_PER_SEC;
+ delay = 1 + ilog2(delay);
+
+ err = regmap_read(regmap, PON_CNTL_1, &pon_cntl);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err);
+ return err;
+ }
+
+ pon_cntl &= ~PON_CNTL_TRIG_DELAY_MASK;
+ pon_cntl |= (delay & PON_CNTL_TRIG_DELAY_MASK);
+ if (pull_up)
+ pon_cntl |= PON_CNTL_PULL_UP;
+ else
+ pon_cntl &= ~PON_CNTL_PULL_UP;
+
+ err = regmap_write(regmap, PON_CNTL_1, pon_cntl);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err);
+ return err;
+ }
+
+ err = devm_request_irq(&pdev->dev, key_press_irq, pwrkey_press_irq,
+ IRQF_TRIGGER_RISING,
+ "pmic8xxx_pwrkey_press", pwr);
+ if (err) {
+ dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",
+ key_press_irq, err);
+ return err;
+ }
+
+ err = devm_request_irq(&pdev->dev, key_release_irq, pwrkey_release_irq,
+ IRQF_TRIGGER_RISING,
+ "pmic8xxx_pwrkey_release", pwr);
+ if (err) {
+ dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",
+ key_release_irq, err);
+ return err;
+ }
+
+ err = input_register_device(pwr);
+ if (err) {
+ dev_err(&pdev->dev, "Can't register power key: %d\n", err);
+ return err;
+ }
+
+ platform_set_drvdata(pdev, pwrkey);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+}
+
+static int pmic8xxx_pwrkey_remove(struct platform_device *pdev)
+{
+ device_init_wakeup(&pdev->dev, 0);
+
+ return 0;
+}
+
+static const struct of_device_id pm8xxx_pwr_key_id_table[] = {
+ { .compatible = "qcom,pm8058-pwrkey" },
+ { .compatible = "qcom,pm8921-pwrkey" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, pm8xxx_pwr_key_id_table);
+
+static struct platform_driver pmic8xxx_pwrkey_driver = {
+ .probe = pmic8xxx_pwrkey_probe,
+ .remove = pmic8xxx_pwrkey_remove,
+ .driver = {
+ .name = "pm8xxx-pwrkey",
+ .pm = &pm8xxx_pwr_key_pm_ops,
+ .of_match_table = pm8xxx_pwr_key_id_table,
+ },
+};
+module_platform_driver(pmic8xxx_pwrkey_driver);
+
+MODULE_ALIAS("platform:pmic8xxx_pwrkey");
+MODULE_DESCRIPTION("PMIC8XXX Power Key driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Trilok Soni <tsoni@codeaurora.org>");
diff --git a/kernel/drivers/input/misc/powermate.c b/kernel/drivers/input/misc/powermate.c
new file mode 100644
index 000000000..63b539d3d
--- /dev/null
+++ b/kernel/drivers/input/misc/powermate.c
@@ -0,0 +1,452 @@
+/*
+ * A driver for the Griffin Technology, Inc. "PowerMate" USB controller dial.
+ *
+ * v1.1, (c)2002 William R Sowerbutts <will@sowerbutts.com>
+ *
+ * This device is a anodised aluminium knob which connects over USB. It can measure
+ * clockwise and anticlockwise rotation. The dial also acts as a pushbutton with
+ * a spring for automatic release. The base contains a pair of LEDs which illuminate
+ * the translucent base. It rotates without limit and reports its relative rotation
+ * back to the host when polled by the USB controller.
+ *
+ * Testing with the knob I have has shown that it measures approximately 94 "clicks"
+ * for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was
+ * a variable speed cordless electric drill) has shown that the device can measure
+ * speeds of up to 7 clicks either clockwise or anticlockwise between pollings from
+ * the host. If it counts more than 7 clicks before it is polled, it will wrap back
+ * to zero and start counting again. This was at quite high speed, however, almost
+ * certainly faster than the human hand could turn it. Griffin say that it loses a
+ * pulse or two on a direction change; the granularity is so fine that I never
+ * noticed this in practice.
+ *
+ * The device's microcontroller can be programmed to set the LED to either a constant
+ * intensity, or to a rhythmic pulsing. Several patterns and speeds are available.
+ *
+ * Griffin were very happy to provide documentation and free hardware for development.
+ *
+ * Some userspace tools are available on the web: http://sowerbutts.com/powermate/
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/usb/input.h>
+
+#define POWERMATE_VENDOR 0x077d /* Griffin Technology, Inc. */
+#define POWERMATE_PRODUCT_NEW 0x0410 /* Griffin PowerMate */
+#define POWERMATE_PRODUCT_OLD 0x04AA /* Griffin soundKnob */
+
+#define CONTOUR_VENDOR 0x05f3 /* Contour Design, Inc. */
+#define CONTOUR_JOG 0x0240 /* Jog and Shuttle */
+
+/* these are the command codes we send to the device */
+#define SET_STATIC_BRIGHTNESS 0x01
+#define SET_PULSE_ASLEEP 0x02
+#define SET_PULSE_AWAKE 0x03
+#define SET_PULSE_MODE 0x04
+
+/* these refer to bits in the powermate_device's requires_update field. */
+#define UPDATE_STATIC_BRIGHTNESS (1<<0)
+#define UPDATE_PULSE_ASLEEP (1<<1)
+#define UPDATE_PULSE_AWAKE (1<<2)
+#define UPDATE_PULSE_MODE (1<<3)
+
+/* at least two versions of the hardware exist, with differing payload
+ sizes. the first three bytes always contain the "interesting" data in
+ the relevant format. */
+#define POWERMATE_PAYLOAD_SIZE_MAX 6
+#define POWERMATE_PAYLOAD_SIZE_MIN 3
+struct powermate_device {
+ signed char *data;
+ dma_addr_t data_dma;
+ struct urb *irq, *config;
+ struct usb_ctrlrequest *configcr;
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ struct input_dev *input;
+ spinlock_t lock;
+ int static_brightness;
+ int pulse_speed;
+ int pulse_table;
+ int pulse_asleep;
+ int pulse_awake;
+ int requires_update; // physical settings which are out of sync
+ char phys[64];
+};
+
+static char pm_name_powermate[] = "Griffin PowerMate";
+static char pm_name_soundknob[] = "Griffin SoundKnob";
+
+static void powermate_config_complete(struct urb *urb);
+
+/* Callback for data arriving from the PowerMate over the USB interrupt pipe */
+static void powermate_irq(struct urb *urb)
+{
+ struct powermate_device *pm = urb->context;
+ struct device *dev = &pm->intf->dev;
+ int retval;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dev_dbg(dev, "%s - urb shutting down with status: %d\n",
+ __func__, urb->status);
+ return;
+ default:
+ dev_dbg(dev, "%s - nonzero urb status received: %d\n",
+ __func__, urb->status);
+ goto exit;
+ }
+
+ /* handle updates to device state */
+ input_report_key(pm->input, BTN_0, pm->data[0] & 0x01);
+ input_report_rel(pm->input, REL_DIAL, pm->data[1]);
+ input_sync(pm->input);
+
+exit:
+ retval = usb_submit_urb (urb, GFP_ATOMIC);
+ if (retval)
+ dev_err(dev, "%s - usb_submit_urb failed with result: %d\n",
+ __func__, retval);
+}
+
+/* Decide if we need to issue a control message and do so. Must be called with pm->lock taken */
+static void powermate_sync_state(struct powermate_device *pm)
+{
+ if (pm->requires_update == 0)
+ return; /* no updates are required */
+ if (pm->config->status == -EINPROGRESS)
+ return; /* an update is already in progress; it'll issue this update when it completes */
+
+ if (pm->requires_update & UPDATE_PULSE_ASLEEP){
+ pm->configcr->wValue = cpu_to_le16( SET_PULSE_ASLEEP );
+ pm->configcr->wIndex = cpu_to_le16( pm->pulse_asleep ? 1 : 0 );
+ pm->requires_update &= ~UPDATE_PULSE_ASLEEP;
+ }else if (pm->requires_update & UPDATE_PULSE_AWAKE){
+ pm->configcr->wValue = cpu_to_le16( SET_PULSE_AWAKE );
+ pm->configcr->wIndex = cpu_to_le16( pm->pulse_awake ? 1 : 0 );
+ pm->requires_update &= ~UPDATE_PULSE_AWAKE;
+ }else if (pm->requires_update & UPDATE_PULSE_MODE){
+ int op, arg;
+ /* the powermate takes an operation and an argument for its pulse algorithm.
+ the operation can be:
+ 0: divide the speed
+ 1: pulse at normal speed
+ 2: multiply the speed
+ the argument only has an effect for operations 0 and 2, and ranges between
+ 1 (least effect) to 255 (maximum effect).
+
+ thus, several states are equivalent and are coalesced into one state.
+
+ we map this onto a range from 0 to 510, with:
+ 0 -- 254 -- use divide (0 = slowest)
+ 255 -- use normal speed
+ 256 -- 510 -- use multiple (510 = fastest).
+
+ Only values of 'arg' quite close to 255 are particularly useful/spectacular.
+ */
+ if (pm->pulse_speed < 255) {
+ op = 0; // divide
+ arg = 255 - pm->pulse_speed;
+ } else if (pm->pulse_speed > 255) {
+ op = 2; // multiply
+ arg = pm->pulse_speed - 255;
+ } else {
+ op = 1; // normal speed
+ arg = 0; // can be any value
+ }
+ pm->configcr->wValue = cpu_to_le16( (pm->pulse_table << 8) | SET_PULSE_MODE );
+ pm->configcr->wIndex = cpu_to_le16( (arg << 8) | op );
+ pm->requires_update &= ~UPDATE_PULSE_MODE;
+ } else if (pm->requires_update & UPDATE_STATIC_BRIGHTNESS) {
+ pm->configcr->wValue = cpu_to_le16( SET_STATIC_BRIGHTNESS );
+ pm->configcr->wIndex = cpu_to_le16( pm->static_brightness );
+ pm->requires_update &= ~UPDATE_STATIC_BRIGHTNESS;
+ } else {
+ printk(KERN_ERR "powermate: unknown update required");
+ pm->requires_update = 0; /* fudge the bug */
+ return;
+ }
+
+/* printk("powermate: %04x %04x\n", pm->configcr->wValue, pm->configcr->wIndex); */
+
+ pm->configcr->bRequestType = 0x41; /* vendor request */
+ pm->configcr->bRequest = 0x01;
+ pm->configcr->wLength = 0;
+
+ usb_fill_control_urb(pm->config, pm->udev, usb_sndctrlpipe(pm->udev, 0),
+ (void *) pm->configcr, NULL, 0,
+ powermate_config_complete, pm);
+
+ if (usb_submit_urb(pm->config, GFP_ATOMIC))
+ printk(KERN_ERR "powermate: usb_submit_urb(config) failed");
+}
+
+/* Called when our asynchronous control message completes. We may need to issue another immediately */
+static void powermate_config_complete(struct urb *urb)
+{
+ struct powermate_device *pm = urb->context;
+ unsigned long flags;
+
+ if (urb->status)
+ printk(KERN_ERR "powermate: config urb returned %d\n", urb->status);
+
+ spin_lock_irqsave(&pm->lock, flags);
+ powermate_sync_state(pm);
+ spin_unlock_irqrestore(&pm->lock, flags);
+}
+
+/* Set the LED up as described and begin the sync with the hardware if required */
+static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed,
+ int pulse_table, int pulse_asleep, int pulse_awake)
+{
+ unsigned long flags;
+
+ if (pulse_speed < 0)
+ pulse_speed = 0;
+ if (pulse_table < 0)
+ pulse_table = 0;
+ if (pulse_speed > 510)
+ pulse_speed = 510;
+ if (pulse_table > 2)
+ pulse_table = 2;
+
+ pulse_asleep = !!pulse_asleep;
+ pulse_awake = !!pulse_awake;
+
+
+ spin_lock_irqsave(&pm->lock, flags);
+
+ /* mark state updates which are required */
+ if (static_brightness != pm->static_brightness) {
+ pm->static_brightness = static_brightness;
+ pm->requires_update |= UPDATE_STATIC_BRIGHTNESS;
+ }
+ if (pulse_asleep != pm->pulse_asleep) {
+ pm->pulse_asleep = pulse_asleep;
+ pm->requires_update |= (UPDATE_PULSE_ASLEEP | UPDATE_STATIC_BRIGHTNESS);
+ }
+ if (pulse_awake != pm->pulse_awake) {
+ pm->pulse_awake = pulse_awake;
+ pm->requires_update |= (UPDATE_PULSE_AWAKE | UPDATE_STATIC_BRIGHTNESS);
+ }
+ if (pulse_speed != pm->pulse_speed || pulse_table != pm->pulse_table) {
+ pm->pulse_speed = pulse_speed;
+ pm->pulse_table = pulse_table;
+ pm->requires_update |= UPDATE_PULSE_MODE;
+ }
+
+ powermate_sync_state(pm);
+
+ spin_unlock_irqrestore(&pm->lock, flags);
+}
+
+/* Callback from the Input layer when an event arrives from userspace to configure the LED */
+static int powermate_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int _value)
+{
+ unsigned int command = (unsigned int)_value;
+ struct powermate_device *pm = input_get_drvdata(dev);
+
+ if (type == EV_MSC && code == MSC_PULSELED){
+ /*
+ bits 0- 7: 8 bits: LED brightness
+ bits 8-16: 9 bits: pulsing speed modifier (0 ... 510); 0-254 = slower, 255 = standard, 256-510 = faster.
+ bits 17-18: 2 bits: pulse table (0, 1, 2 valid)
+ bit 19: 1 bit : pulse whilst asleep?
+ bit 20: 1 bit : pulse constantly?
+ */
+ int static_brightness = command & 0xFF; // bits 0-7
+ int pulse_speed = (command >> 8) & 0x1FF; // bits 8-16
+ int pulse_table = (command >> 17) & 0x3; // bits 17-18
+ int pulse_asleep = (command >> 19) & 0x1; // bit 19
+ int pulse_awake = (command >> 20) & 0x1; // bit 20
+
+ powermate_pulse_led(pm, static_brightness, pulse_speed, pulse_table, pulse_asleep, pulse_awake);
+ }
+
+ return 0;
+}
+
+static int powermate_alloc_buffers(struct usb_device *udev, struct powermate_device *pm)
+{
+ pm->data = usb_alloc_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
+ GFP_ATOMIC, &pm->data_dma);
+ if (!pm->data)
+ return -1;
+
+ pm->configcr = kmalloc(sizeof(*(pm->configcr)), GFP_KERNEL);
+ if (!pm->configcr)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void powermate_free_buffers(struct usb_device *udev, struct powermate_device *pm)
+{
+ usb_free_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
+ pm->data, pm->data_dma);
+ kfree(pm->configcr);
+}
+
+/* Called whenever a USB device matching one in our supported devices table is connected */
+static int powermate_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev (intf);
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *endpoint;
+ struct powermate_device *pm;
+ struct input_dev *input_dev;
+ int pipe, maxp;
+ int error = -ENOMEM;
+
+ interface = intf->cur_altsetting;
+ endpoint = &interface->endpoint[0].desc;
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -EIO;
+
+ usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ 0x0a, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0, interface->desc.bInterfaceNumber, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+
+ pm = kzalloc(sizeof(struct powermate_device), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!pm || !input_dev)
+ goto fail1;
+
+ if (powermate_alloc_buffers(udev, pm))
+ goto fail2;
+
+ pm->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pm->irq)
+ goto fail2;
+
+ pm->config = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pm->config)
+ goto fail3;
+
+ pm->udev = udev;
+ pm->intf = intf;
+ pm->input = input_dev;
+
+ usb_make_path(udev, pm->phys, sizeof(pm->phys));
+ strlcat(pm->phys, "/input0", sizeof(pm->phys));
+
+ spin_lock_init(&pm->lock);
+
+ switch (le16_to_cpu(udev->descriptor.idProduct)) {
+ case POWERMATE_PRODUCT_NEW:
+ input_dev->name = pm_name_powermate;
+ break;
+ case POWERMATE_PRODUCT_OLD:
+ input_dev->name = pm_name_soundknob;
+ break;
+ default:
+ input_dev->name = pm_name_soundknob;
+ printk(KERN_WARNING "powermate: unknown product id %04x\n",
+ le16_to_cpu(udev->descriptor.idProduct));
+ }
+
+ input_dev->phys = pm->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, pm);
+
+ input_dev->event = powermate_input_event;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) |
+ BIT_MASK(EV_MSC);
+ input_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0);
+ input_dev->relbit[BIT_WORD(REL_DIAL)] = BIT_MASK(REL_DIAL);
+ input_dev->mscbit[BIT_WORD(MSC_PULSELED)] = BIT_MASK(MSC_PULSELED);
+
+ /* get a handle to the interrupt data pipe */
+ pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+
+ if (maxp < POWERMATE_PAYLOAD_SIZE_MIN || maxp > POWERMATE_PAYLOAD_SIZE_MAX) {
+ printk(KERN_WARNING "powermate: Expected payload of %d--%d bytes, found %d bytes!\n",
+ POWERMATE_PAYLOAD_SIZE_MIN, POWERMATE_PAYLOAD_SIZE_MAX, maxp);
+ maxp = POWERMATE_PAYLOAD_SIZE_MAX;
+ }
+
+ usb_fill_int_urb(pm->irq, udev, pipe, pm->data,
+ maxp, powermate_irq,
+ pm, endpoint->bInterval);
+ pm->irq->transfer_dma = pm->data_dma;
+ pm->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* register our interrupt URB with the USB system */
+ if (usb_submit_urb(pm->irq, GFP_KERNEL)) {
+ error = -EIO;
+ goto fail4;
+ }
+
+ error = input_register_device(pm->input);
+ if (error)
+ goto fail5;
+
+
+ /* force an update of everything */
+ pm->requires_update = UPDATE_PULSE_ASLEEP | UPDATE_PULSE_AWAKE | UPDATE_PULSE_MODE | UPDATE_STATIC_BRIGHTNESS;
+ powermate_pulse_led(pm, 0x80, 255, 0, 1, 0); // set default pulse parameters
+
+ usb_set_intfdata(intf, pm);
+ return 0;
+
+ fail5: usb_kill_urb(pm->irq);
+ fail4: usb_free_urb(pm->config);
+ fail3: usb_free_urb(pm->irq);
+ fail2: powermate_free_buffers(udev, pm);
+ fail1: input_free_device(input_dev);
+ kfree(pm);
+ return error;
+}
+
+/* Called when a USB device we've accepted ownership of is removed */
+static void powermate_disconnect(struct usb_interface *intf)
+{
+ struct powermate_device *pm = usb_get_intfdata (intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (pm) {
+ pm->requires_update = 0;
+ usb_kill_urb(pm->irq);
+ input_unregister_device(pm->input);
+ usb_free_urb(pm->irq);
+ usb_free_urb(pm->config);
+ powermate_free_buffers(interface_to_usbdev(intf), pm);
+
+ kfree(pm);
+ }
+}
+
+static struct usb_device_id powermate_devices [] = {
+ { USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_NEW) },
+ { USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_OLD) },
+ { USB_DEVICE(CONTOUR_VENDOR, CONTOUR_JOG) },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, powermate_devices);
+
+static struct usb_driver powermate_driver = {
+ .name = "powermate",
+ .probe = powermate_probe,
+ .disconnect = powermate_disconnect,
+ .id_table = powermate_devices,
+};
+
+module_usb_driver(powermate_driver);
+
+MODULE_AUTHOR( "William R Sowerbutts" );
+MODULE_DESCRIPTION( "Griffin Technology, Inc PowerMate driver" );
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/pwm-beeper.c b/kernel/drivers/input/misc/pwm-beeper.c
new file mode 100644
index 000000000..e82edf810
--- /dev/null
+++ b/kernel/drivers/input/misc/pwm-beeper.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ * PWM beeper driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+#include <linux/slab.h>
+
+struct pwm_beeper {
+ struct input_dev *input;
+ struct pwm_device *pwm;
+ unsigned long period;
+};
+
+#define HZ_TO_NANOSECONDS(x) (1000000000UL/(x))
+
+static int pwm_beeper_event(struct input_dev *input,
+ unsigned int type, unsigned int code, int value)
+{
+ int ret = 0;
+ struct pwm_beeper *beeper = input_get_drvdata(input);
+ unsigned long period;
+
+ if (type != EV_SND || value < 0)
+ return -EINVAL;
+
+ switch (code) {
+ case SND_BELL:
+ value = value ? 1000 : 0;
+ break;
+ case SND_TONE:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (value == 0) {
+ pwm_disable(beeper->pwm);
+ } else {
+ period = HZ_TO_NANOSECONDS(value);
+ ret = pwm_config(beeper->pwm, period / 2, period);
+ if (ret)
+ return ret;
+ ret = pwm_enable(beeper->pwm);
+ if (ret)
+ return ret;
+ beeper->period = period;
+ }
+
+ return 0;
+}
+
+static int pwm_beeper_probe(struct platform_device *pdev)
+{
+ unsigned long pwm_id = (unsigned long)dev_get_platdata(&pdev->dev);
+ struct pwm_beeper *beeper;
+ int error;
+
+ beeper = kzalloc(sizeof(*beeper), GFP_KERNEL);
+ if (!beeper)
+ return -ENOMEM;
+
+ beeper->pwm = pwm_get(&pdev->dev, NULL);
+ if (IS_ERR(beeper->pwm)) {
+ dev_dbg(&pdev->dev, "unable to request PWM, trying legacy API\n");
+ beeper->pwm = pwm_request(pwm_id, "pwm beeper");
+ }
+
+ if (IS_ERR(beeper->pwm)) {
+ error = PTR_ERR(beeper->pwm);
+ dev_err(&pdev->dev, "Failed to request pwm device: %d\n", error);
+ goto err_free;
+ }
+
+ beeper->input = input_allocate_device();
+ if (!beeper->input) {
+ dev_err(&pdev->dev, "Failed to allocate input device\n");
+ error = -ENOMEM;
+ goto err_pwm_free;
+ }
+ beeper->input->dev.parent = &pdev->dev;
+
+ beeper->input->name = "pwm-beeper";
+ beeper->input->phys = "pwm/input0";
+ beeper->input->id.bustype = BUS_HOST;
+ beeper->input->id.vendor = 0x001f;
+ beeper->input->id.product = 0x0001;
+ beeper->input->id.version = 0x0100;
+
+ beeper->input->evbit[0] = BIT(EV_SND);
+ beeper->input->sndbit[0] = BIT(SND_TONE) | BIT(SND_BELL);
+
+ beeper->input->event = pwm_beeper_event;
+
+ input_set_drvdata(beeper->input, beeper);
+
+ error = input_register_device(beeper->input);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to register input device: %d\n", error);
+ goto err_input_free;
+ }
+
+ platform_set_drvdata(pdev, beeper);
+
+ return 0;
+
+err_input_free:
+ input_free_device(beeper->input);
+err_pwm_free:
+ pwm_free(beeper->pwm);
+err_free:
+ kfree(beeper);
+
+ return error;
+}
+
+static int pwm_beeper_remove(struct platform_device *pdev)
+{
+ struct pwm_beeper *beeper = platform_get_drvdata(pdev);
+
+ input_unregister_device(beeper->input);
+
+ pwm_disable(beeper->pwm);
+ pwm_free(beeper->pwm);
+
+ kfree(beeper);
+
+ return 0;
+}
+
+static int __maybe_unused pwm_beeper_suspend(struct device *dev)
+{
+ struct pwm_beeper *beeper = dev_get_drvdata(dev);
+
+ if (beeper->period)
+ pwm_disable(beeper->pwm);
+
+ return 0;
+}
+
+static int __maybe_unused pwm_beeper_resume(struct device *dev)
+{
+ struct pwm_beeper *beeper = dev_get_drvdata(dev);
+
+ if (beeper->period) {
+ pwm_config(beeper->pwm, beeper->period / 2, beeper->period);
+ pwm_enable(beeper->pwm);
+ }
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(pwm_beeper_pm_ops,
+ pwm_beeper_suspend, pwm_beeper_resume);
+
+#ifdef CONFIG_OF
+static const struct of_device_id pwm_beeper_match[] = {
+ { .compatible = "pwm-beeper", },
+ { },
+};
+#endif
+
+static struct platform_driver pwm_beeper_driver = {
+ .probe = pwm_beeper_probe,
+ .remove = pwm_beeper_remove,
+ .driver = {
+ .name = "pwm-beeper",
+ .pm = &pwm_beeper_pm_ops,
+ .of_match_table = of_match_ptr(pwm_beeper_match),
+ },
+};
+module_platform_driver(pwm_beeper_driver);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("PWM beeper driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pwm-beeper");
diff --git a/kernel/drivers/input/misc/rb532_button.c b/kernel/drivers/input/misc/rb532_button.c
new file mode 100644
index 000000000..e956e81cd
--- /dev/null
+++ b/kernel/drivers/input/misc/rb532_button.c
@@ -0,0 +1,106 @@
+/*
+ * Support for the S1 button on Routerboard 532
+ *
+ * Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>
+ */
+
+#include <linux/input-polldev.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-rc32434/gpio.h>
+#include <asm/mach-rc32434/rb.h>
+
+#define DRV_NAME "rb532-button"
+
+#define RB532_BTN_RATE 100 /* msec */
+#define RB532_BTN_KSYM BTN_0
+
+/* The S1 button state is provided by GPIO pin 1. But as this
+ * pin is also used for uart input as alternate function, the
+ * operational modes must be switched first:
+ * 1) disable uart using set_latch_u5()
+ * 2) turn off alternate function implicitly through
+ * gpio_direction_input()
+ * 3) read the GPIO's current value
+ * 4) undo step 2 by enabling alternate function (in this
+ * mode the GPIO direction is fixed, so no change needed)
+ * 5) turn on uart again
+ * The GPIO value occurs to be inverted, so pin high means
+ * button is not pressed.
+ */
+static bool rb532_button_pressed(void)
+{
+ int val;
+
+ set_latch_u5(0, LO_FOFF);
+ gpio_direction_input(GPIO_BTN_S1);
+
+ val = gpio_get_value(GPIO_BTN_S1);
+
+ rb532_gpio_set_func(GPIO_BTN_S1);
+ set_latch_u5(LO_FOFF, 0);
+
+ return !val;
+}
+
+static void rb532_button_poll(struct input_polled_dev *poll_dev)
+{
+ input_report_key(poll_dev->input, RB532_BTN_KSYM,
+ rb532_button_pressed());
+ input_sync(poll_dev->input);
+}
+
+static int rb532_button_probe(struct platform_device *pdev)
+{
+ struct input_polled_dev *poll_dev;
+ int error;
+
+ poll_dev = input_allocate_polled_device();
+ if (!poll_dev)
+ return -ENOMEM;
+
+ poll_dev->poll = rb532_button_poll;
+ poll_dev->poll_interval = RB532_BTN_RATE;
+
+ poll_dev->input->name = "rb532 button";
+ poll_dev->input->phys = "rb532/button0";
+ poll_dev->input->id.bustype = BUS_HOST;
+ poll_dev->input->dev.parent = &pdev->dev;
+
+ dev_set_drvdata(&pdev->dev, poll_dev);
+
+ input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ input_free_polled_device(poll_dev);
+ return error;
+ }
+
+ return 0;
+}
+
+static int rb532_button_remove(struct platform_device *pdev)
+{
+ struct input_polled_dev *poll_dev = dev_get_drvdata(&pdev->dev);
+
+ input_unregister_polled_device(poll_dev);
+ input_free_polled_device(poll_dev);
+
+ return 0;
+}
+
+static struct platform_driver rb532_button_driver = {
+ .probe = rb532_button_probe,
+ .remove = rb532_button_remove,
+ .driver = {
+ .name = DRV_NAME,
+ },
+};
+module_platform_driver(rb532_button_driver);
+
+MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Support for S1 button on Routerboard 532");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/kernel/drivers/input/misc/regulator-haptic.c b/kernel/drivers/input/misc/regulator-haptic.c
new file mode 100644
index 000000000..6bf3f1082
--- /dev/null
+++ b/kernel/drivers/input/misc/regulator-haptic.c
@@ -0,0 +1,266 @@
+/*
+ * Regulator haptic driver
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Jaewon Kim <jaewon02.kim@samsung.com>
+ * Author: Hyunhee Kim <hyunhee.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_data/regulator-haptic.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+
+#define MAX_MAGNITUDE_SHIFT 16
+
+struct regulator_haptic {
+ struct device *dev;
+ struct input_dev *input_dev;
+ struct regulator *regulator;
+
+ struct work_struct work;
+ struct mutex mutex;
+
+ bool active;
+ bool suspended;
+
+ unsigned int max_volt;
+ unsigned int min_volt;
+ unsigned int magnitude;
+};
+
+static int regulator_haptic_toggle(struct regulator_haptic *haptic, bool on)
+{
+ int error;
+
+ if (haptic->active != on) {
+
+ error = on ? regulator_enable(haptic->regulator) :
+ regulator_disable(haptic->regulator);
+ if (error) {
+ dev_err(haptic->dev,
+ "failed to switch regulator %s: %d\n",
+ on ? "on" : "off", error);
+ return error;
+ }
+
+ haptic->active = on;
+ }
+
+ return 0;
+}
+
+static int regulator_haptic_set_voltage(struct regulator_haptic *haptic,
+ unsigned int magnitude)
+{
+ u64 volt_mag_multi;
+ unsigned int intensity;
+ int error;
+
+ volt_mag_multi = (u64)(haptic->max_volt - haptic->min_volt) * magnitude;
+ intensity = (unsigned int)(volt_mag_multi >> MAX_MAGNITUDE_SHIFT);
+
+ error = regulator_set_voltage(haptic->regulator,
+ intensity + haptic->min_volt,
+ haptic->max_volt);
+ if (error) {
+ dev_err(haptic->dev, "cannot set regulator voltage to %d: %d\n",
+ intensity + haptic->min_volt, error);
+ return error;
+ }
+
+ regulator_haptic_toggle(haptic, !!magnitude);
+
+ return 0;
+}
+
+static void regulator_haptic_work(struct work_struct *work)
+{
+ struct regulator_haptic *haptic = container_of(work,
+ struct regulator_haptic, work);
+
+ mutex_lock(&haptic->mutex);
+
+ if (!haptic->suspended)
+ regulator_haptic_set_voltage(haptic, haptic->magnitude);
+
+ mutex_unlock(&haptic->mutex);
+}
+
+static int regulator_haptic_play_effect(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct regulator_haptic *haptic = input_get_drvdata(input);
+
+ haptic->magnitude = effect->u.rumble.strong_magnitude;
+ if (!haptic->magnitude)
+ haptic->magnitude = effect->u.rumble.weak_magnitude;
+
+ schedule_work(&haptic->work);
+
+ return 0;
+}
+
+static void regulator_haptic_close(struct input_dev *input)
+{
+ struct regulator_haptic *haptic = input_get_drvdata(input);
+
+ cancel_work_sync(&haptic->work);
+ regulator_haptic_set_voltage(haptic, 0);
+}
+
+static int __maybe_unused
+regulator_haptic_parse_dt(struct device *dev, struct regulator_haptic *haptic)
+{
+ struct device_node *node;
+ int error;
+
+ node = dev->of_node;
+ if(!node) {
+ dev_err(dev, "Missing dveice tree data\n");
+ return -EINVAL;
+ }
+
+ error = of_property_read_u32(node, "max-microvolt", &haptic->max_volt);
+ if (error) {
+ dev_err(dev, "cannot parse max-microvolt\n");
+ return error;
+ }
+
+ error = of_property_read_u32(node, "min-microvolt", &haptic->min_volt);
+ if (error) {
+ dev_err(dev, "cannot parse min-microvolt\n");
+ return error;
+ }
+
+ return 0;
+}
+
+static int regulator_haptic_probe(struct platform_device *pdev)
+{
+ const struct regulator_haptic_data *pdata = dev_get_platdata(&pdev->dev);
+ struct regulator_haptic *haptic;
+ struct input_dev *input_dev;
+ int error;
+
+ haptic = devm_kzalloc(&pdev->dev, sizeof(*haptic), GFP_KERNEL);
+ if (!haptic)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, haptic);
+ haptic->dev = &pdev->dev;
+ mutex_init(&haptic->mutex);
+ INIT_WORK(&haptic->work, regulator_haptic_work);
+
+ if (pdata) {
+ haptic->max_volt = pdata->max_volt;
+ haptic->min_volt = pdata->min_volt;
+ } else if (IS_ENABLED(CONFIG_OF)) {
+ error = regulator_haptic_parse_dt(&pdev->dev, haptic);
+ if (error)
+ return error;
+ } else {
+ dev_err(&pdev->dev, "Missing platform data\n");
+ return -EINVAL;
+ }
+
+ haptic->regulator = devm_regulator_get_exclusive(&pdev->dev, "haptic");
+ if (IS_ERR(haptic->regulator)) {
+ dev_err(&pdev->dev, "failed to get regulator\n");
+ return PTR_ERR(haptic->regulator);
+ }
+
+ input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!input_dev)
+ return -ENOMEM;
+
+ haptic->input_dev = input_dev;
+ haptic->input_dev->name = "regulator-haptic";
+ haptic->input_dev->dev.parent = &pdev->dev;
+ haptic->input_dev->close = regulator_haptic_close;
+ input_set_drvdata(haptic->input_dev, haptic);
+ input_set_capability(haptic->input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(input_dev, NULL,
+ regulator_haptic_play_effect);
+ if (error) {
+ dev_err(&pdev->dev, "failed to create force-feedback\n");
+ return error;
+ }
+
+ error = input_register_device(haptic->input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ return error;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused regulator_haptic_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct regulator_haptic *haptic = platform_get_drvdata(pdev);
+ int error;
+
+ error = mutex_lock_interruptible(&haptic->mutex);
+ if (error)
+ return error;
+
+ regulator_haptic_set_voltage(haptic, 0);
+
+ haptic->suspended = true;
+
+ mutex_unlock(&haptic->mutex);
+
+ return 0;
+}
+
+static int __maybe_unused regulator_haptic_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct regulator_haptic *haptic = platform_get_drvdata(pdev);
+ unsigned int magnitude;
+
+ mutex_lock(&haptic->mutex);
+
+ haptic->suspended = false;
+
+ magnitude = ACCESS_ONCE(haptic->magnitude);
+ if (magnitude)
+ regulator_haptic_set_voltage(haptic, magnitude);
+
+ mutex_unlock(&haptic->mutex);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(regulator_haptic_pm_ops,
+ regulator_haptic_suspend, regulator_haptic_resume);
+
+static const struct of_device_id regulator_haptic_dt_match[] = {
+ { .compatible = "regulator-haptic" },
+ { /* sentinel */ },
+};
+
+static struct platform_driver regulator_haptic_driver = {
+ .probe = regulator_haptic_probe,
+ .driver = {
+ .name = "regulator-haptic",
+ .of_match_table = regulator_haptic_dt_match,
+ .pm = &regulator_haptic_pm_ops,
+ },
+};
+module_platform_driver(regulator_haptic_driver);
+
+MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>");
+MODULE_AUTHOR("Hyunhee Kim <hyunhee.kim@samsung.com>");
+MODULE_DESCRIPTION("Regulator haptic driver");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/retu-pwrbutton.c b/kernel/drivers/input/misc/retu-pwrbutton.c
new file mode 100644
index 000000000..0c8ac60e2
--- /dev/null
+++ b/kernel/drivers/input/misc/retu-pwrbutton.c
@@ -0,0 +1,97 @@
+/*
+ * Retu power button driver.
+ *
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Original code written by Ari Saastamoinen, Juha Yrjölä and Felipe Balbi.
+ * Rewritten by Aaro Koskinen.
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/retu.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
+#define RETU_STATUS_PWRONX (1 << 5)
+
+static irqreturn_t retu_pwrbutton_irq(int irq, void *_pwr)
+{
+ struct input_dev *idev = _pwr;
+ struct retu_dev *rdev = input_get_drvdata(idev);
+ bool state;
+
+ state = !(retu_read(rdev, RETU_REG_STATUS) & RETU_STATUS_PWRONX);
+ input_report_key(idev, KEY_POWER, state);
+ input_sync(idev);
+
+ return IRQ_HANDLED;
+}
+
+static int retu_pwrbutton_probe(struct platform_device *pdev)
+{
+ struct retu_dev *rdev = dev_get_drvdata(pdev->dev.parent);
+ struct input_dev *idev;
+ int irq;
+ int error;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ idev = devm_input_allocate_device(&pdev->dev);
+ if (!idev)
+ return -ENOMEM;
+
+ idev->name = "retu-pwrbutton";
+ idev->dev.parent = &pdev->dev;
+
+ input_set_capability(idev, EV_KEY, KEY_POWER);
+ input_set_drvdata(idev, rdev);
+
+ error = devm_request_threaded_irq(&pdev->dev, irq,
+ NULL, retu_pwrbutton_irq, 0,
+ "retu-pwrbutton", idev);
+ if (error)
+ return error;
+
+ error = input_register_device(idev);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+static int retu_pwrbutton_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static struct platform_driver retu_pwrbutton_driver = {
+ .probe = retu_pwrbutton_probe,
+ .remove = retu_pwrbutton_remove,
+ .driver = {
+ .name = "retu-pwrbutton",
+ },
+};
+module_platform_driver(retu_pwrbutton_driver);
+
+MODULE_ALIAS("platform:retu-pwrbutton");
+MODULE_DESCRIPTION("Retu Power Button");
+MODULE_AUTHOR("Ari Saastamoinen");
+MODULE_AUTHOR("Felipe Balbi");
+MODULE_AUTHOR("Aaro Koskinen <aaro.koskinen@iki.fi>");
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/rotary_encoder.c b/kernel/drivers/input/misc/rotary_encoder.c
new file mode 100644
index 000000000..f27f81ee8
--- /dev/null
+++ b/kernel/drivers/input/misc/rotary_encoder.c
@@ -0,0 +1,336 @@
+/*
+ * rotary_encoder.c
+ *
+ * (c) 2009 Daniel Mack <daniel@caiaq.de>
+ * Copyright (C) 2011 Johan Hovold <jhovold@gmail.com>
+ *
+ * state machine code inspired by code from Tim Ruetz
+ *
+ * A generic driver for rotary encoders connected to GPIO lines.
+ * See file:Documentation/input/rotary-encoder.txt for more information
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/rotary_encoder.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+
+#define DRV_NAME "rotary-encoder"
+
+struct rotary_encoder {
+ struct input_dev *input;
+ const struct rotary_encoder_platform_data *pdata;
+
+ unsigned int axis;
+ unsigned int pos;
+
+ unsigned int irq_a;
+ unsigned int irq_b;
+
+ bool armed;
+ unsigned char dir; /* 0 - clockwise, 1 - CCW */
+
+ char last_stable;
+};
+
+static int rotary_encoder_get_state(const struct rotary_encoder_platform_data *pdata)
+{
+ int a = !!gpio_get_value(pdata->gpio_a);
+ int b = !!gpio_get_value(pdata->gpio_b);
+
+ a ^= pdata->inverted_a;
+ b ^= pdata->inverted_b;
+
+ return ((a << 1) | b);
+}
+
+static void rotary_encoder_report_event(struct rotary_encoder *encoder)
+{
+ const struct rotary_encoder_platform_data *pdata = encoder->pdata;
+
+ if (pdata->relative_axis) {
+ input_report_rel(encoder->input,
+ pdata->axis, encoder->dir ? -1 : 1);
+ } else {
+ unsigned int pos = encoder->pos;
+
+ if (encoder->dir) {
+ /* turning counter-clockwise */
+ if (pdata->rollover)
+ pos += pdata->steps;
+ if (pos)
+ pos--;
+ } else {
+ /* turning clockwise */
+ if (pdata->rollover || pos < pdata->steps)
+ pos++;
+ }
+
+ if (pdata->rollover)
+ pos %= pdata->steps;
+
+ encoder->pos = pos;
+ input_report_abs(encoder->input, pdata->axis, encoder->pos);
+ }
+
+ input_sync(encoder->input);
+}
+
+static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
+{
+ struct rotary_encoder *encoder = dev_id;
+ int state;
+
+ state = rotary_encoder_get_state(encoder->pdata);
+
+ switch (state) {
+ case 0x0:
+ if (encoder->armed) {
+ rotary_encoder_report_event(encoder);
+ encoder->armed = false;
+ }
+ break;
+
+ case 0x1:
+ case 0x2:
+ if (encoder->armed)
+ encoder->dir = state - 1;
+ break;
+
+ case 0x3:
+ encoder->armed = true;
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t rotary_encoder_half_period_irq(int irq, void *dev_id)
+{
+ struct rotary_encoder *encoder = dev_id;
+ int state;
+
+ state = rotary_encoder_get_state(encoder->pdata);
+
+ switch (state) {
+ case 0x00:
+ case 0x03:
+ if (state != encoder->last_stable) {
+ rotary_encoder_report_event(encoder);
+ encoder->last_stable = state;
+ }
+ break;
+
+ case 0x01:
+ case 0x02:
+ encoder->dir = (encoder->last_stable + state) & 0x01;
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id rotary_encoder_of_match[] = {
+ { .compatible = "rotary-encoder", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, rotary_encoder_of_match);
+
+static struct rotary_encoder_platform_data *rotary_encoder_parse_dt(struct device *dev)
+{
+ const struct of_device_id *of_id =
+ of_match_device(rotary_encoder_of_match, dev);
+ struct device_node *np = dev->of_node;
+ struct rotary_encoder_platform_data *pdata;
+ enum of_gpio_flags flags;
+
+ if (!of_id || !np)
+ return NULL;
+
+ pdata = kzalloc(sizeof(struct rotary_encoder_platform_data),
+ GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ of_property_read_u32(np, "rotary-encoder,steps", &pdata->steps);
+ of_property_read_u32(np, "linux,axis", &pdata->axis);
+
+ pdata->gpio_a = of_get_gpio_flags(np, 0, &flags);
+ pdata->inverted_a = flags & OF_GPIO_ACTIVE_LOW;
+
+ pdata->gpio_b = of_get_gpio_flags(np, 1, &flags);
+ pdata->inverted_b = flags & OF_GPIO_ACTIVE_LOW;
+
+ pdata->relative_axis = !!of_get_property(np,
+ "rotary-encoder,relative-axis", NULL);
+ pdata->rollover = !!of_get_property(np,
+ "rotary-encoder,rollover", NULL);
+ pdata->half_period = !!of_get_property(np,
+ "rotary-encoder,half-period", NULL);
+
+ return pdata;
+}
+#else
+static inline struct rotary_encoder_platform_data *
+rotary_encoder_parse_dt(struct device *dev)
+{
+ return NULL;
+}
+#endif
+
+static int rotary_encoder_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct rotary_encoder_platform_data *pdata = dev_get_platdata(dev);
+ struct rotary_encoder *encoder;
+ struct input_dev *input;
+ irq_handler_t handler;
+ int err;
+
+ if (!pdata) {
+ pdata = rotary_encoder_parse_dt(dev);
+ if (IS_ERR(pdata))
+ return PTR_ERR(pdata);
+
+ if (!pdata) {
+ dev_err(dev, "missing platform data\n");
+ return -EINVAL;
+ }
+ }
+
+ encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!encoder || !input) {
+ err = -ENOMEM;
+ goto exit_free_mem;
+ }
+
+ encoder->input = input;
+ encoder->pdata = pdata;
+
+ input->name = pdev->name;
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = dev;
+
+ if (pdata->relative_axis) {
+ input->evbit[0] = BIT_MASK(EV_REL);
+ input->relbit[0] = BIT_MASK(pdata->axis);
+ } else {
+ input->evbit[0] = BIT_MASK(EV_ABS);
+ input_set_abs_params(encoder->input,
+ pdata->axis, 0, pdata->steps, 0, 1);
+ }
+
+ /* request the GPIOs */
+ err = gpio_request_one(pdata->gpio_a, GPIOF_IN, dev_name(dev));
+ if (err) {
+ dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_a);
+ goto exit_free_mem;
+ }
+
+ err = gpio_request_one(pdata->gpio_b, GPIOF_IN, dev_name(dev));
+ if (err) {
+ dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_b);
+ goto exit_free_gpio_a;
+ }
+
+ encoder->irq_a = gpio_to_irq(pdata->gpio_a);
+ encoder->irq_b = gpio_to_irq(pdata->gpio_b);
+
+ /* request the IRQs */
+ if (pdata->half_period) {
+ handler = &rotary_encoder_half_period_irq;
+ encoder->last_stable = rotary_encoder_get_state(pdata);
+ } else {
+ handler = &rotary_encoder_irq;
+ }
+
+ err = request_irq(encoder->irq_a, handler,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ DRV_NAME, encoder);
+ if (err) {
+ dev_err(dev, "unable to request IRQ %d\n", encoder->irq_a);
+ goto exit_free_gpio_b;
+ }
+
+ err = request_irq(encoder->irq_b, handler,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ DRV_NAME, encoder);
+ if (err) {
+ dev_err(dev, "unable to request IRQ %d\n", encoder->irq_b);
+ goto exit_free_irq_a;
+ }
+
+ err = input_register_device(input);
+ if (err) {
+ dev_err(dev, "failed to register input device\n");
+ goto exit_free_irq_b;
+ }
+
+ platform_set_drvdata(pdev, encoder);
+
+ return 0;
+
+exit_free_irq_b:
+ free_irq(encoder->irq_b, encoder);
+exit_free_irq_a:
+ free_irq(encoder->irq_a, encoder);
+exit_free_gpio_b:
+ gpio_free(pdata->gpio_b);
+exit_free_gpio_a:
+ gpio_free(pdata->gpio_a);
+exit_free_mem:
+ input_free_device(input);
+ kfree(encoder);
+ if (!dev_get_platdata(&pdev->dev))
+ kfree(pdata);
+
+ return err;
+}
+
+static int rotary_encoder_remove(struct platform_device *pdev)
+{
+ struct rotary_encoder *encoder = platform_get_drvdata(pdev);
+ const struct rotary_encoder_platform_data *pdata = encoder->pdata;
+
+ free_irq(encoder->irq_a, encoder);
+ free_irq(encoder->irq_b, encoder);
+ gpio_free(pdata->gpio_a);
+ gpio_free(pdata->gpio_b);
+
+ input_unregister_device(encoder->input);
+ kfree(encoder);
+
+ if (!dev_get_platdata(&pdev->dev))
+ kfree(pdata);
+
+ return 0;
+}
+
+static struct platform_driver rotary_encoder_driver = {
+ .probe = rotary_encoder_probe,
+ .remove = rotary_encoder_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = of_match_ptr(rotary_encoder_of_match),
+ }
+};
+module_platform_driver(rotary_encoder_driver);
+
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DESCRIPTION("GPIO rotary encoder driver");
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>, Johan Hovold");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/input/misc/sgi_btns.c b/kernel/drivers/input/misc/sgi_btns.c
new file mode 100644
index 000000000..7bbe79d89
--- /dev/null
+++ b/kernel/drivers/input/misc/sgi_btns.c
@@ -0,0 +1,164 @@
+/*
+ * SGI Volume Button interface driver
+ *
+ * Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_SGI_IP22
+#include <asm/sgi/ioc.h>
+
+static inline u8 button_status(void)
+{
+ u8 status;
+
+ status = readb(&sgioc->panel) ^ 0xa0;
+ return ((status & 0x80) >> 6) | ((status & 0x20) >> 5);
+}
+#endif
+
+#ifdef CONFIG_SGI_IP32
+#include <asm/ip32/mace.h>
+
+static inline u8 button_status(void)
+{
+ u64 status;
+
+ status = readq(&mace->perif.audio.control);
+ writeq(status & ~(3U << 23), &mace->perif.audio.control);
+
+ return (status >> 23) & 3;
+}
+#endif
+
+#define BUTTONS_POLL_INTERVAL 30 /* msec */
+#define BUTTONS_COUNT_THRESHOLD 3
+
+static const unsigned short sgi_map[] = {
+ KEY_VOLUMEDOWN,
+ KEY_VOLUMEUP
+};
+
+struct buttons_dev {
+ struct input_polled_dev *poll_dev;
+ unsigned short keymap[ARRAY_SIZE(sgi_map)];
+ int count[ARRAY_SIZE(sgi_map)];
+};
+
+static void handle_buttons(struct input_polled_dev *dev)
+{
+ struct buttons_dev *bdev = dev->private;
+ struct input_dev *input = dev->input;
+ u8 status;
+ int i;
+
+ status = button_status();
+
+ for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
+ if (status & (1U << i)) {
+ if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 1);
+ input_sync(input);
+ }
+ } else {
+ if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 0);
+ input_sync(input);
+ }
+ bdev->count[i] = 0;
+ }
+ }
+}
+
+static int sgi_buttons_probe(struct platform_device *pdev)
+{
+ struct buttons_dev *bdev;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ int error, i;
+
+ bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL);
+ poll_dev = input_allocate_polled_device();
+ if (!bdev || !poll_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ memcpy(bdev->keymap, sgi_map, sizeof(bdev->keymap));
+
+ poll_dev->private = bdev;
+ poll_dev->poll = handle_buttons;
+ poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
+
+ input = poll_dev->input;
+ input->name = "SGI buttons";
+ input->phys = "sgi/input0";
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = &pdev->dev;
+
+ input->keycode = bdev->keymap;
+ input->keycodemax = ARRAY_SIZE(bdev->keymap);
+ input->keycodesize = sizeof(unsigned short);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < ARRAY_SIZE(sgi_map); i++)
+ __set_bit(bdev->keymap[i], input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ bdev->poll_dev = poll_dev;
+ platform_set_drvdata(pdev, bdev);
+
+ error = input_register_polled_device(poll_dev);
+ if (error)
+ goto err_free_mem;
+
+ return 0;
+
+ err_free_mem:
+ input_free_polled_device(poll_dev);
+ kfree(bdev);
+ return error;
+}
+
+static int sgi_buttons_remove(struct platform_device *pdev)
+{
+ struct buttons_dev *bdev = platform_get_drvdata(pdev);
+
+ input_unregister_polled_device(bdev->poll_dev);
+ input_free_polled_device(bdev->poll_dev);
+ kfree(bdev);
+
+ return 0;
+}
+
+static struct platform_driver sgi_buttons_driver = {
+ .probe = sgi_buttons_probe,
+ .remove = sgi_buttons_remove,
+ .driver = {
+ .name = "sgibtns",
+ },
+};
+module_platform_driver(sgi_buttons_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/sirfsoc-onkey.c b/kernel/drivers/input/misc/sirfsoc-onkey.c
new file mode 100644
index 000000000..9d5b89bef
--- /dev/null
+++ b/kernel/drivers/input/misc/sirfsoc-onkey.c
@@ -0,0 +1,216 @@
+/*
+ * Power key driver for SiRF PrimaII
+ *
+ * Copyright (c) 2013 - 2014 Cambridge Silicon Radio Limited, a CSR plc group
+ * company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/rtc/sirfsoc_rtciobrg.h>
+#include <linux/of.h>
+#include <linux/workqueue.h>
+
+struct sirfsoc_pwrc_drvdata {
+ u32 pwrc_base;
+ struct input_dev *input;
+ struct delayed_work work;
+};
+
+#define PWRC_ON_KEY_BIT (1 << 0)
+
+#define PWRC_INT_STATUS 0xc
+#define PWRC_INT_MASK 0x10
+#define PWRC_PIN_STATUS 0x14
+#define PWRC_KEY_DETECT_UP_TIME 20 /* ms*/
+
+static int sirfsoc_pwrc_is_on_key_down(struct sirfsoc_pwrc_drvdata *pwrcdrv)
+{
+ u32 state = sirfsoc_rtc_iobrg_readl(pwrcdrv->pwrc_base +
+ PWRC_PIN_STATUS);
+ return !(state & PWRC_ON_KEY_BIT); /* ON_KEY is active low */
+}
+
+static void sirfsoc_pwrc_report_event(struct work_struct *work)
+{
+ struct sirfsoc_pwrc_drvdata *pwrcdrv =
+ container_of(work, struct sirfsoc_pwrc_drvdata, work.work);
+
+ if (sirfsoc_pwrc_is_on_key_down(pwrcdrv)) {
+ schedule_delayed_work(&pwrcdrv->work,
+ msecs_to_jiffies(PWRC_KEY_DETECT_UP_TIME));
+ } else {
+ input_event(pwrcdrv->input, EV_KEY, KEY_POWER, 0);
+ input_sync(pwrcdrv->input);
+ }
+}
+
+static irqreturn_t sirfsoc_pwrc_isr(int irq, void *dev_id)
+{
+ struct sirfsoc_pwrc_drvdata *pwrcdrv = dev_id;
+ u32 int_status;
+
+ int_status = sirfsoc_rtc_iobrg_readl(pwrcdrv->pwrc_base +
+ PWRC_INT_STATUS);
+ sirfsoc_rtc_iobrg_writel(int_status & ~PWRC_ON_KEY_BIT,
+ pwrcdrv->pwrc_base + PWRC_INT_STATUS);
+
+ input_event(pwrcdrv->input, EV_KEY, KEY_POWER, 1);
+ input_sync(pwrcdrv->input);
+ schedule_delayed_work(&pwrcdrv->work,
+ msecs_to_jiffies(PWRC_KEY_DETECT_UP_TIME));
+
+ return IRQ_HANDLED;
+}
+
+static void sirfsoc_pwrc_toggle_interrupts(struct sirfsoc_pwrc_drvdata *pwrcdrv,
+ bool enable)
+{
+ u32 int_mask;
+
+ int_mask = sirfsoc_rtc_iobrg_readl(pwrcdrv->pwrc_base + PWRC_INT_MASK);
+ if (enable)
+ int_mask |= PWRC_ON_KEY_BIT;
+ else
+ int_mask &= ~PWRC_ON_KEY_BIT;
+ sirfsoc_rtc_iobrg_writel(int_mask, pwrcdrv->pwrc_base + PWRC_INT_MASK);
+}
+
+static int sirfsoc_pwrc_open(struct input_dev *input)
+{
+ struct sirfsoc_pwrc_drvdata *pwrcdrv = input_get_drvdata(input);
+
+ sirfsoc_pwrc_toggle_interrupts(pwrcdrv, true);
+
+ return 0;
+}
+
+static void sirfsoc_pwrc_close(struct input_dev *input)
+{
+ struct sirfsoc_pwrc_drvdata *pwrcdrv = input_get_drvdata(input);
+
+ sirfsoc_pwrc_toggle_interrupts(pwrcdrv, false);
+ cancel_delayed_work_sync(&pwrcdrv->work);
+}
+
+static const struct of_device_id sirfsoc_pwrc_of_match[] = {
+ { .compatible = "sirf,prima2-pwrc" },
+ {},
+}
+MODULE_DEVICE_TABLE(of, sirfsoc_pwrc_of_match);
+
+static int sirfsoc_pwrc_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct sirfsoc_pwrc_drvdata *pwrcdrv;
+ int irq;
+ int error;
+
+ pwrcdrv = devm_kzalloc(&pdev->dev, sizeof(struct sirfsoc_pwrc_drvdata),
+ GFP_KERNEL);
+ if (!pwrcdrv) {
+ dev_info(&pdev->dev, "Not enough memory for the device data\n");
+ return -ENOMEM;
+ }
+
+ /*
+ * We can't use of_iomap because pwrc is not mapped in memory,
+ * the so-called base address is only offset in rtciobrg
+ */
+ error = of_property_read_u32(np, "reg", &pwrcdrv->pwrc_base);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to find base address of pwrc node in dtb\n");
+ return error;
+ }
+
+ pwrcdrv->input = devm_input_allocate_device(&pdev->dev);
+ if (!pwrcdrv->input)
+ return -ENOMEM;
+
+ pwrcdrv->input->name = "sirfsoc pwrckey";
+ pwrcdrv->input->phys = "pwrc/input0";
+ pwrcdrv->input->evbit[0] = BIT_MASK(EV_KEY);
+ input_set_capability(pwrcdrv->input, EV_KEY, KEY_POWER);
+
+ INIT_DELAYED_WORK(&pwrcdrv->work, sirfsoc_pwrc_report_event);
+
+ pwrcdrv->input->open = sirfsoc_pwrc_open;
+ pwrcdrv->input->close = sirfsoc_pwrc_close;
+
+ input_set_drvdata(pwrcdrv->input, pwrcdrv);
+
+ /* Make sure the device is quiesced */
+ sirfsoc_pwrc_toggle_interrupts(pwrcdrv, false);
+
+ irq = platform_get_irq(pdev, 0);
+ error = devm_request_irq(&pdev->dev, irq,
+ sirfsoc_pwrc_isr, 0,
+ "sirfsoc_pwrc_int", pwrcdrv);
+ if (error) {
+ dev_err(&pdev->dev, "unable to claim irq %d, error: %d\n",
+ irq, error);
+ return error;
+ }
+
+ error = input_register_device(pwrcdrv->input);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to register input device, error: %d\n",
+ error);
+ return error;
+ }
+
+ dev_set_drvdata(&pdev->dev, pwrcdrv);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+}
+
+static int sirfsoc_pwrc_remove(struct platform_device *pdev)
+{
+ device_init_wakeup(&pdev->dev, 0);
+
+ return 0;
+}
+
+static int __maybe_unused sirfsoc_pwrc_resume(struct device *dev)
+{
+ struct sirfsoc_pwrc_drvdata *pwrcdrv = dev_get_drvdata(dev);
+ struct input_dev *input = pwrcdrv->input;
+
+ /*
+ * Do not mask pwrc interrupt as we want pwrc work as a wakeup source
+ * if users touch X_ONKEY_B, see arch/arm/mach-prima2/pm.c
+ */
+ mutex_lock(&input->mutex);
+ if (input->users)
+ sirfsoc_pwrc_toggle_interrupts(pwrcdrv, true);
+ mutex_unlock(&input->mutex);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(sirfsoc_pwrc_pm_ops, NULL, sirfsoc_pwrc_resume);
+
+static struct platform_driver sirfsoc_pwrc_driver = {
+ .probe = sirfsoc_pwrc_probe,
+ .remove = sirfsoc_pwrc_remove,
+ .driver = {
+ .name = "sirfsoc-pwrc",
+ .pm = &sirfsoc_pwrc_pm_ops,
+ .of_match_table = sirfsoc_pwrc_of_match,
+ }
+};
+
+module_platform_driver(sirfsoc_pwrc_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Binghua Duan <Binghua.Duan@csr.com>, Xianglong Du <Xianglong.Du@csr.com>");
+MODULE_DESCRIPTION("CSR Prima2 PWRC Driver");
+MODULE_ALIAS("platform:sirfsoc-pwrc");
diff --git a/kernel/drivers/input/misc/soc_button_array.c b/kernel/drivers/input/misc/soc_button_array.c
new file mode 100644
index 000000000..e8e010a85
--- /dev/null
+++ b/kernel/drivers/input/misc/soc_button_array.c
@@ -0,0 +1,222 @@
+/*
+ * Supports for the button array on SoC tablets originally running
+ * Windows 8.
+ *
+ * (C) Copyright 2014 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/acpi.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio_keys.h>
+#include <linux/platform_device.h>
+#include <linux/acpi.h>
+
+/*
+ * Definition of buttons on the tablet. The ACPI index of each button
+ * is defined in section 2.8.7.2 of "Windows ACPI Design Guide for SoC
+ * Platforms"
+ */
+#define MAX_NBUTTONS 5
+
+struct soc_button_info {
+ const char *name;
+ int acpi_index;
+ unsigned int event_type;
+ unsigned int event_code;
+ bool autorepeat;
+ bool wakeup;
+};
+
+/*
+ * Some of the buttons like volume up/down are auto repeat, while others
+ * are not. To support both, we register two platform devices, and put
+ * buttons into them based on whether the key should be auto repeat.
+ */
+#define BUTTON_TYPES 2
+
+struct soc_button_data {
+ struct platform_device *children[BUTTON_TYPES];
+};
+
+/*
+ * Get the Nth GPIO number from the ACPI object.
+ */
+static int soc_button_lookup_gpio(struct device *dev, int acpi_index)
+{
+ struct gpio_desc *desc;
+ int gpio;
+
+ desc = gpiod_get_index(dev, KBUILD_MODNAME, acpi_index, GPIOD_ASIS);
+ if (IS_ERR(desc))
+ return PTR_ERR(desc);
+
+ gpio = desc_to_gpio(desc);
+
+ gpiod_put(desc);
+
+ return gpio;
+}
+
+static struct platform_device *
+soc_button_device_create(struct platform_device *pdev,
+ const struct soc_button_info *button_info,
+ bool autorepeat)
+{
+ const struct soc_button_info *info;
+ struct platform_device *pd;
+ struct gpio_keys_button *gpio_keys;
+ struct gpio_keys_platform_data *gpio_keys_pdata;
+ int n_buttons = 0;
+ int gpio;
+ int error;
+
+ gpio_keys_pdata = devm_kzalloc(&pdev->dev,
+ sizeof(*gpio_keys_pdata) +
+ sizeof(*gpio_keys) * MAX_NBUTTONS,
+ GFP_KERNEL);
+ if (!gpio_keys_pdata)
+ return ERR_PTR(-ENOMEM);
+
+ gpio_keys = (void *)(gpio_keys_pdata + 1);
+
+ for (info = button_info; info->name; info++) {
+ if (info->autorepeat != autorepeat)
+ continue;
+
+ gpio = soc_button_lookup_gpio(&pdev->dev, info->acpi_index);
+ if (gpio < 0)
+ continue;
+
+ gpio_keys[n_buttons].type = info->event_type;
+ gpio_keys[n_buttons].code = info->event_code;
+ gpio_keys[n_buttons].gpio = gpio;
+ gpio_keys[n_buttons].active_low = 1;
+ gpio_keys[n_buttons].desc = info->name;
+ gpio_keys[n_buttons].wakeup = info->wakeup;
+ n_buttons++;
+ }
+
+ if (n_buttons == 0) {
+ error = -ENODEV;
+ goto err_free_mem;
+ }
+
+ gpio_keys_pdata->buttons = gpio_keys;
+ gpio_keys_pdata->nbuttons = n_buttons;
+ gpio_keys_pdata->rep = autorepeat;
+
+ pd = platform_device_alloc("gpio-keys", PLATFORM_DEVID_AUTO);
+ if (!pd) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ error = platform_device_add_data(pd, gpio_keys_pdata,
+ sizeof(*gpio_keys_pdata));
+ if (error)
+ goto err_free_pdev;
+
+ error = platform_device_add(pd);
+ if (error)
+ goto err_free_pdev;
+
+ return pd;
+
+err_free_pdev:
+ platform_device_put(pd);
+err_free_mem:
+ devm_kfree(&pdev->dev, gpio_keys_pdata);
+ return ERR_PTR(error);
+}
+
+static int soc_button_remove(struct platform_device *pdev)
+{
+ struct soc_button_data *priv = platform_get_drvdata(pdev);
+
+ int i;
+
+ for (i = 0; i < BUTTON_TYPES; i++)
+ if (priv->children[i])
+ platform_device_unregister(priv->children[i]);
+
+ return 0;
+}
+
+static int soc_button_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct acpi_device_id *id;
+ struct soc_button_info *button_info;
+ struct soc_button_data *priv;
+ struct platform_device *pd;
+ int i;
+ int error;
+
+ id = acpi_match_device(dev->driver->acpi_match_table, dev);
+ if (!id)
+ return -ENODEV;
+
+ button_info = (struct soc_button_info *)id->driver_data;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, priv);
+
+ for (i = 0; i < BUTTON_TYPES; i++) {
+ pd = soc_button_device_create(pdev, button_info, i == 0);
+ if (IS_ERR(pd)) {
+ error = PTR_ERR(pd);
+ if (error != -ENODEV) {
+ soc_button_remove(pdev);
+ return error;
+ }
+ continue;
+ }
+
+ priv->children[i] = pd;
+ }
+
+ if (!priv->children[0] && !priv->children[1])
+ return -ENODEV;
+
+ return 0;
+}
+
+static struct soc_button_info soc_button_PNP0C40[] = {
+ { "power", 0, EV_KEY, KEY_POWER, false, true },
+ { "home", 1, EV_KEY, KEY_LEFTMETA, false, true },
+ { "volume_up", 2, EV_KEY, KEY_VOLUMEUP, true, false },
+ { "volume_down", 3, EV_KEY, KEY_VOLUMEDOWN, true, false },
+ { "rotation_lock", 4, EV_SW, SW_ROTATE_LOCK, false, false },
+ { }
+};
+
+static const struct acpi_device_id soc_button_acpi_match[] = {
+ { "PNP0C40", (unsigned long)soc_button_PNP0C40 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(acpi, soc_button_acpi_match);
+
+static struct platform_driver soc_button_driver = {
+ .probe = soc_button_probe,
+ .remove = soc_button_remove,
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .acpi_match_table = ACPI_PTR(soc_button_acpi_match),
+ },
+};
+module_platform_driver(soc_button_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/sparcspkr.c b/kernel/drivers/input/misc/sparcspkr.c
new file mode 100644
index 000000000..54116e544
--- /dev/null
+++ b/kernel/drivers/input/misc/sparcspkr.c
@@ -0,0 +1,366 @@
+/*
+ * Driver for PC-speaker like devices found on various Sparc systems.
+ *
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 2002, 2006, 2008 David S. Miller (davem@davemloft.net)
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_DESCRIPTION("Sparc Speaker beeper driver");
+MODULE_LICENSE("GPL");
+
+struct grover_beep_info {
+ void __iomem *freq_regs;
+ void __iomem *enable_reg;
+};
+
+struct bbc_beep_info {
+ u32 clock_freq;
+ void __iomem *regs;
+};
+
+struct sparcspkr_state {
+ const char *name;
+ int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
+ spinlock_t lock;
+ struct input_dev *input_dev;
+ union {
+ struct grover_beep_info grover;
+ struct bbc_beep_info bbc;
+ } u;
+};
+
+static u32 bbc_count_to_reg(struct bbc_beep_info *info, unsigned int count)
+{
+ u32 val, clock_freq = info->clock_freq;
+ int i;
+
+ if (!count)
+ return 0;
+
+ if (count <= clock_freq >> 20)
+ return 1 << 18;
+
+ if (count >= clock_freq >> 12)
+ return 1 << 10;
+
+ val = 1 << 18;
+ for (i = 19; i >= 11; i--) {
+ val >>= 1;
+ if (count <= clock_freq >> i)
+ break;
+ }
+
+ return val;
+}
+
+static int bbc_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);
+ struct bbc_beep_info *info = &state->u.bbc;
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ count = bbc_count_to_reg(info, count);
+
+ spin_lock_irqsave(&state->lock, flags);
+
+ if (count) {
+ sbus_writeb(0x01, info->regs + 0);
+ sbus_writeb(0x00, info->regs + 2);
+ sbus_writeb((count >> 16) & 0xff, info->regs + 3);
+ sbus_writeb((count >> 8) & 0xff, info->regs + 4);
+ sbus_writeb(0x00, info->regs + 5);
+ } else {
+ sbus_writeb(0x00, info->regs + 0);
+ }
+
+ spin_unlock_irqrestore(&state->lock, flags);
+
+ return 0;
+}
+
+static int grover_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);
+ struct grover_beep_info *info = &state->u.grover;
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ spin_lock_irqsave(&state->lock, flags);
+
+ if (count) {
+ /* enable counter 2 */
+ sbus_writeb(sbus_readb(info->enable_reg) | 3, info->enable_reg);
+ /* set command for counter 2, 2 byte write */
+ sbus_writeb(0xB6, info->freq_regs + 1);
+ /* select desired HZ */
+ sbus_writeb(count & 0xff, info->freq_regs + 0);
+ sbus_writeb((count >> 8) & 0xff, info->freq_regs + 0);
+ } else {
+ /* disable counter 2 */
+ sbus_writeb(sbus_readb(info->enable_reg) & 0xFC, info->enable_reg);
+ }
+
+ spin_unlock_irqrestore(&state->lock, flags);
+
+ return 0;
+}
+
+static int sparcspkr_probe(struct device *dev)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(dev);
+ struct input_dev *input_dev;
+ int error;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = state->name;
+ input_dev->phys = "sparc/input0";
+ input_dev->id.bustype = BUS_ISA;
+ input_dev->id.vendor = 0x001f;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+
+ input_dev->event = state->event;
+
+ error = input_register_device(input_dev);
+ if (error) {
+ input_free_device(input_dev);
+ return error;
+ }
+
+ state->input_dev = input_dev;
+
+ return 0;
+}
+
+static void sparcspkr_shutdown(struct platform_device *dev)
+{
+ struct sparcspkr_state *state = platform_get_drvdata(dev);
+ struct input_dev *input_dev = state->input_dev;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+}
+
+static int bbc_beep_probe(struct platform_device *op)
+{
+ struct sparcspkr_state *state;
+ struct bbc_beep_info *info;
+ struct device_node *dp;
+ int err = -ENOMEM;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ goto out_err;
+
+ state->name = "Sparc BBC Speaker";
+ state->event = bbc_spkr_event;
+ spin_lock_init(&state->lock);
+
+ dp = of_find_node_by_path("/");
+ err = -ENODEV;
+ if (!dp)
+ goto out_free;
+
+ info = &state->u.bbc;
+ info->clock_freq = of_getintprop_default(dp, "clock-frequency", 0);
+ if (!info->clock_freq)
+ goto out_free;
+
+ info->regs = of_ioremap(&op->resource[0], 0, 6, "bbc beep");
+ if (!info->regs)
+ goto out_free;
+
+ platform_set_drvdata(op, state);
+
+ err = sparcspkr_probe(&op->dev);
+ if (err)
+ goto out_clear_drvdata;
+
+ return 0;
+
+out_clear_drvdata:
+ of_iounmap(&op->resource[0], info->regs, 6);
+
+out_free:
+ kfree(state);
+out_err:
+ return err;
+}
+
+static int bbc_remove(struct platform_device *op)
+{
+ struct sparcspkr_state *state = platform_get_drvdata(op);
+ struct input_dev *input_dev = state->input_dev;
+ struct bbc_beep_info *info = &state->u.bbc;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+
+ input_unregister_device(input_dev);
+
+ of_iounmap(&op->resource[0], info->regs, 6);
+
+ kfree(state);
+
+ return 0;
+}
+
+static const struct of_device_id bbc_beep_match[] = {
+ {
+ .name = "beep",
+ .compatible = "SUNW,bbc-beep",
+ },
+ {},
+};
+
+static struct platform_driver bbc_beep_driver = {
+ .driver = {
+ .name = "bbcbeep",
+ .of_match_table = bbc_beep_match,
+ },
+ .probe = bbc_beep_probe,
+ .remove = bbc_remove,
+ .shutdown = sparcspkr_shutdown,
+};
+
+static int grover_beep_probe(struct platform_device *op)
+{
+ struct sparcspkr_state *state;
+ struct grover_beep_info *info;
+ int err = -ENOMEM;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ goto out_err;
+
+ state->name = "Sparc Grover Speaker";
+ state->event = grover_spkr_event;
+ spin_lock_init(&state->lock);
+
+ info = &state->u.grover;
+ info->freq_regs = of_ioremap(&op->resource[2], 0, 2, "grover beep freq");
+ if (!info->freq_regs)
+ goto out_free;
+
+ info->enable_reg = of_ioremap(&op->resource[3], 0, 1, "grover beep enable");
+ if (!info->enable_reg)
+ goto out_unmap_freq_regs;
+
+ platform_set_drvdata(op, state);
+
+ err = sparcspkr_probe(&op->dev);
+ if (err)
+ goto out_clear_drvdata;
+
+ return 0;
+
+out_clear_drvdata:
+ of_iounmap(&op->resource[3], info->enable_reg, 1);
+
+out_unmap_freq_regs:
+ of_iounmap(&op->resource[2], info->freq_regs, 2);
+out_free:
+ kfree(state);
+out_err:
+ return err;
+}
+
+static int grover_remove(struct platform_device *op)
+{
+ struct sparcspkr_state *state = platform_get_drvdata(op);
+ struct grover_beep_info *info = &state->u.grover;
+ struct input_dev *input_dev = state->input_dev;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+
+ input_unregister_device(input_dev);
+
+ of_iounmap(&op->resource[3], info->enable_reg, 1);
+ of_iounmap(&op->resource[2], info->freq_regs, 2);
+
+ kfree(state);
+
+ return 0;
+}
+
+static const struct of_device_id grover_beep_match[] = {
+ {
+ .name = "beep",
+ .compatible = "SUNW,smbus-beep",
+ },
+ {},
+};
+
+static struct platform_driver grover_beep_driver = {
+ .driver = {
+ .name = "groverbeep",
+ .of_match_table = grover_beep_match,
+ },
+ .probe = grover_beep_probe,
+ .remove = grover_remove,
+ .shutdown = sparcspkr_shutdown,
+};
+
+static int __init sparcspkr_init(void)
+{
+ int err = platform_driver_register(&bbc_beep_driver);
+
+ if (!err) {
+ err = platform_driver_register(&grover_beep_driver);
+ if (err)
+ platform_driver_unregister(&bbc_beep_driver);
+ }
+
+ return err;
+}
+
+static void __exit sparcspkr_exit(void)
+{
+ platform_driver_unregister(&bbc_beep_driver);
+ platform_driver_unregister(&grover_beep_driver);
+}
+
+module_init(sparcspkr_init);
+module_exit(sparcspkr_exit);
diff --git a/kernel/drivers/input/misc/tps65218-pwrbutton.c b/kernel/drivers/input/misc/tps65218-pwrbutton.c
new file mode 100644
index 000000000..a39b62651
--- /dev/null
+++ b/kernel/drivers/input/misc/tps65218-pwrbutton.c
@@ -0,0 +1,126 @@
+/*
+ * Texas Instruments' TPS65218 Power Button Input Driver
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Felipe Balbi <balbi@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/tps65218.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+struct tps65218_pwrbutton {
+ struct device *dev;
+ struct tps65218 *tps;
+ struct input_dev *idev;
+};
+
+static irqreturn_t tps65218_pwr_irq(int irq, void *_pwr)
+{
+ struct tps65218_pwrbutton *pwr = _pwr;
+ unsigned int reg;
+ int error;
+
+ error = tps65218_reg_read(pwr->tps, TPS65218_REG_STATUS, &reg);
+ if (error) {
+ dev_err(pwr->dev, "can't read register: %d\n", error);
+ goto out;
+ }
+
+ if (reg & TPS65218_STATUS_PB_STATE) {
+ input_report_key(pwr->idev, KEY_POWER, 1);
+ pm_wakeup_event(pwr->dev, 0);
+ } else {
+ input_report_key(pwr->idev, KEY_POWER, 0);
+ }
+
+ input_sync(pwr->idev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int tps65218_pwron_probe(struct platform_device *pdev)
+{
+ struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
+ struct device *dev = &pdev->dev;
+ struct tps65218_pwrbutton *pwr;
+ struct input_dev *idev;
+ int error;
+ int irq;
+
+ pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL);
+ if (!pwr)
+ return -ENOMEM;
+
+ idev = devm_input_allocate_device(dev);
+ if (!idev)
+ return -ENOMEM;
+
+ idev->name = "tps65218_pwrbutton";
+ idev->phys = "tps65218_pwrbutton/input0";
+ idev->dev.parent = dev;
+ idev->id.bustype = BUS_I2C;
+
+ input_set_capability(idev, EV_KEY, KEY_POWER);
+
+ pwr->tps = tps;
+ pwr->dev = dev;
+ pwr->idev = idev;
+ platform_set_drvdata(pdev, pwr);
+ device_init_wakeup(dev, true);
+
+ irq = platform_get_irq(pdev, 0);
+ error = devm_request_threaded_irq(dev, irq, NULL, tps65218_pwr_irq,
+ IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ "tps65218-pwrbutton", pwr);
+ if (error) {
+ dev_err(dev, "failed to request IRQ #%d: %d\n",
+ irq, error);
+ return error;
+ }
+
+ error= input_register_device(idev);
+ if (error) {
+ dev_err(dev, "Can't register power button: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id of_tps65218_pwr_match[] = {
+ { .compatible = "ti,tps65218-pwrbutton" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, of_tps65218_pwr_match);
+
+static struct platform_driver tps65218_pwron_driver = {
+ .probe = tps65218_pwron_probe,
+ .driver = {
+ .name = "tps65218_pwrbutton",
+ .of_match_table = of_tps65218_pwr_match,
+ },
+};
+module_platform_driver(tps65218_pwron_driver);
+
+MODULE_DESCRIPTION("TPS65218 Power Button");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
diff --git a/kernel/drivers/input/misc/twl4030-pwrbutton.c b/kernel/drivers/input/misc/twl4030-pwrbutton.c
new file mode 100644
index 000000000..e98cc81a8
--- /dev/null
+++ b/kernel/drivers/input/misc/twl4030-pwrbutton.c
@@ -0,0 +1,115 @@
+/**
+ * twl4030-pwrbutton.c - TWL4030 Power Button Input Driver
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Written by Peter De Schrijver <peter.de-schrijver@nokia.com>
+ * Several fixes by Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl.h>
+
+#define PWR_PWRON_IRQ (1 << 0)
+
+#define STS_HW_CONDITIONS 0xf
+
+static irqreturn_t powerbutton_irq(int irq, void *_pwr)
+{
+ struct input_dev *pwr = _pwr;
+ int err;
+ u8 value;
+
+ err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &value, STS_HW_CONDITIONS);
+ if (!err) {
+ pm_wakeup_event(pwr->dev.parent, 0);
+ input_report_key(pwr, KEY_POWER, value & PWR_PWRON_IRQ);
+ input_sync(pwr);
+ } else {
+ dev_err(pwr->dev.parent, "twl4030: i2c error %d while reading"
+ " TWL4030 PM_MASTER STS_HW_CONDITIONS register\n", err);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int twl4030_pwrbutton_probe(struct platform_device *pdev)
+{
+ struct input_dev *pwr;
+ int irq = platform_get_irq(pdev, 0);
+ int err;
+
+ pwr = devm_input_allocate_device(&pdev->dev);
+ if (!pwr) {
+ dev_err(&pdev->dev, "Can't allocate power button\n");
+ return -ENOMEM;
+ }
+
+ pwr->evbit[0] = BIT_MASK(EV_KEY);
+ pwr->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+ pwr->name = "twl4030_pwrbutton";
+ pwr->phys = "twl4030_pwrbutton/input0";
+ pwr->dev.parent = &pdev->dev;
+
+ err = devm_request_threaded_irq(&pwr->dev, irq, NULL, powerbutton_irq,
+ IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+ "twl4030_pwrbutton", pwr);
+ if (err < 0) {
+ dev_err(&pdev->dev, "Can't get IRQ for pwrbutton: %d\n", err);
+ return err;
+ }
+
+ err = input_register_device(pwr);
+ if (err) {
+ dev_err(&pdev->dev, "Can't register power button: %d\n", err);
+ return err;
+ }
+
+ platform_set_drvdata(pdev, pwr);
+ device_init_wakeup(&pdev->dev, true);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_pwrbutton_dt_match_table[] = {
+ { .compatible = "ti,twl4030-pwrbutton" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, twl4030_pwrbutton_dt_match_table);
+#endif
+
+static struct platform_driver twl4030_pwrbutton_driver = {
+ .probe = twl4030_pwrbutton_probe,
+ .driver = {
+ .name = "twl4030_pwrbutton",
+ .of_match_table = of_match_ptr(twl4030_pwrbutton_dt_match_table),
+ },
+};
+module_platform_driver(twl4030_pwrbutton_driver);
+
+MODULE_ALIAS("platform:twl4030_pwrbutton");
+MODULE_DESCRIPTION("Triton2 Power Button");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Peter De Schrijver <peter.de-schrijver@nokia.com>");
+MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
+
diff --git a/kernel/drivers/input/misc/twl4030-vibra.c b/kernel/drivers/input/misc/twl4030-vibra.c
new file mode 100644
index 000000000..fc17b9592
--- /dev/null
+++ b/kernel/drivers/input/misc/twl4030-vibra.c
@@ -0,0 +1,262 @@
+/*
+ * twl4030-vibra.c - TWL4030 Vibrator driver
+ *
+ * Copyright (C) 2008-2010 Nokia Corporation
+ *
+ * Written by Henrik Saari <henrik.saari@nokia.com>
+ * Updates by Felipe Balbi <felipe.balbi@nokia.com>
+ * Input by Jari Vanhala <ext-jari.vanhala@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/workqueue.h>
+#include <linux/i2c/twl.h>
+#include <linux/mfd/twl4030-audio.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+/* MODULE ID2 */
+#define LEDEN 0x00
+
+/* ForceFeedback */
+#define EFFECT_DIR_180_DEG 0x8000 /* range is 0 - 0xFFFF */
+
+struct vibra_info {
+ struct device *dev;
+ struct input_dev *input_dev;
+
+ struct work_struct play_work;
+
+ bool enabled;
+ int speed;
+ int direction;
+
+ bool coexist;
+};
+
+static void vibra_disable_leds(void)
+{
+ u8 reg;
+
+ /* Disable LEDA & LEDB, cannot be used with vibra (PWM) */
+ twl_i2c_read_u8(TWL4030_MODULE_LED, &reg, LEDEN);
+ reg &= ~0x03;
+ twl_i2c_write_u8(TWL4030_MODULE_LED, LEDEN, reg);
+}
+
+/* Powers H-Bridge and enables audio clk */
+static void vibra_enable(struct vibra_info *info)
+{
+ u8 reg;
+
+ twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
+
+ /* turn H-Bridge on */
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ &reg, TWL4030_REG_VIBRA_CTL);
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ (reg | TWL4030_VIBRA_EN), TWL4030_REG_VIBRA_CTL);
+
+ twl4030_audio_enable_resource(TWL4030_AUDIO_RES_APLL);
+
+ info->enabled = true;
+}
+
+static void vibra_disable(struct vibra_info *info)
+{
+ u8 reg;
+
+ /* Power down H-Bridge */
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ &reg, TWL4030_REG_VIBRA_CTL);
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ (reg & ~TWL4030_VIBRA_EN), TWL4030_REG_VIBRA_CTL);
+
+ twl4030_audio_disable_resource(TWL4030_AUDIO_RES_APLL);
+ twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
+
+ info->enabled = false;
+}
+
+static void vibra_play_work(struct work_struct *work)
+{
+ struct vibra_info *info = container_of(work,
+ struct vibra_info, play_work);
+ int dir;
+ int pwm;
+ u8 reg;
+
+ dir = info->direction;
+ pwm = info->speed;
+
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ &reg, TWL4030_REG_VIBRA_CTL);
+ if (pwm && (!info->coexist || !(reg & TWL4030_VIBRA_SEL))) {
+
+ if (!info->enabled)
+ vibra_enable(info);
+
+ /* set vibra rotation direction */
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ &reg, TWL4030_REG_VIBRA_CTL);
+ reg = (dir) ? (reg | TWL4030_VIBRA_DIR) :
+ (reg & ~TWL4030_VIBRA_DIR);
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ reg, TWL4030_REG_VIBRA_CTL);
+
+ /* set PWM, 1 = max, 255 = min */
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ 256 - pwm, TWL4030_REG_VIBRA_SET);
+ } else {
+ if (info->enabled)
+ vibra_disable(info);
+ }
+}
+
+/*** Input/ForceFeedback ***/
+
+static int vibra_play(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+
+ info->speed = effect->u.rumble.strong_magnitude >> 8;
+ if (!info->speed)
+ info->speed = effect->u.rumble.weak_magnitude >> 9;
+ info->direction = effect->direction < EFFECT_DIR_180_DEG ? 0 : 1;
+ schedule_work(&info->play_work);
+ return 0;
+}
+
+static void twl4030_vibra_close(struct input_dev *input)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+
+ cancel_work_sync(&info->play_work);
+
+ if (info->enabled)
+ vibra_disable(info);
+}
+
+/*** Module ***/
+static int __maybe_unused twl4030_vibra_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct vibra_info *info = platform_get_drvdata(pdev);
+
+ if (info->enabled)
+ vibra_disable(info);
+
+ return 0;
+}
+
+static int __maybe_unused twl4030_vibra_resume(struct device *dev)
+{
+ vibra_disable_leds();
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops,
+ twl4030_vibra_suspend, twl4030_vibra_resume);
+
+static bool twl4030_vibra_check_coexist(struct twl4030_vibra_data *pdata,
+ struct device_node *node)
+{
+ if (pdata && pdata->coexist)
+ return true;
+
+ if (of_find_node_by_name(node, "codec")) {
+ of_node_put(node);
+ return true;
+ }
+
+ return false;
+}
+
+static int twl4030_vibra_probe(struct platform_device *pdev)
+{
+ struct twl4030_vibra_data *pdata = dev_get_platdata(&pdev->dev);
+ struct device_node *twl4030_core_node = pdev->dev.parent->of_node;
+ struct vibra_info *info;
+ int ret;
+
+ if (!pdata && !twl4030_core_node) {
+ dev_dbg(&pdev->dev, "platform_data not available\n");
+ return -EINVAL;
+ }
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->dev = &pdev->dev;
+ info->coexist = twl4030_vibra_check_coexist(pdata, twl4030_core_node);
+ INIT_WORK(&info->play_work, vibra_play_work);
+
+ info->input_dev = devm_input_allocate_device(&pdev->dev);
+ if (info->input_dev == NULL) {
+ dev_err(&pdev->dev, "couldn't allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_set_drvdata(info->input_dev, info);
+
+ info->input_dev->name = "twl4030:vibrator";
+ info->input_dev->id.version = 1;
+ info->input_dev->dev.parent = pdev->dev.parent;
+ info->input_dev->close = twl4030_vibra_close;
+ __set_bit(FF_RUMBLE, info->input_dev->ffbit);
+
+ ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
+ if (ret < 0) {
+ dev_dbg(&pdev->dev, "couldn't register vibrator to FF\n");
+ return ret;
+ }
+
+ ret = input_register_device(info->input_dev);
+ if (ret < 0) {
+ dev_dbg(&pdev->dev, "couldn't register input device\n");
+ goto err_iff;
+ }
+
+ vibra_disable_leds();
+
+ platform_set_drvdata(pdev, info);
+ return 0;
+
+err_iff:
+ input_ff_destroy(info->input_dev);
+ return ret;
+}
+
+static struct platform_driver twl4030_vibra_driver = {
+ .probe = twl4030_vibra_probe,
+ .driver = {
+ .name = "twl4030-vibra",
+ .pm = &twl4030_vibra_pm_ops,
+ },
+};
+module_platform_driver(twl4030_vibra_driver);
+
+MODULE_ALIAS("platform:twl4030-vibra");
+MODULE_DESCRIPTION("TWL4030 Vibra driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Nokia Corporation");
diff --git a/kernel/drivers/input/misc/twl6040-vibra.c b/kernel/drivers/input/misc/twl6040-vibra.c
new file mode 100644
index 000000000..0e0d094df
--- /dev/null
+++ b/kernel/drivers/input/misc/twl6040-vibra.c
@@ -0,0 +1,398 @@
+/*
+ * twl6040-vibra.c - TWL6040 Vibrator driver
+ *
+ * Author: Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
+ * Author: Misael Lopez Cruz <misael.lopez@ti.com>
+ *
+ * Copyright: (C) 2011 Texas Instruments, Inc.
+ *
+ * Based on twl4030-vibra.c by Henrik Saari <henrik.saari@nokia.com>
+ * Felipe Balbi <felipe.balbi@nokia.com>
+ * Jari Vanhala <ext-javi.vanhala@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/workqueue.h>
+#include <linux/input.h>
+#include <linux/mfd/twl6040.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/regulator/consumer.h>
+
+#define EFFECT_DIR_180_DEG 0x8000
+
+/* Recommended modulation index 85% */
+#define TWL6040_VIBRA_MOD 85
+
+#define TWL6040_NUM_SUPPLIES 2
+
+struct vibra_info {
+ struct device *dev;
+ struct input_dev *input_dev;
+ struct workqueue_struct *workqueue;
+ struct work_struct play_work;
+ struct mutex mutex;
+ int irq;
+
+ bool enabled;
+ int weak_speed;
+ int strong_speed;
+ int direction;
+
+ unsigned int vibldrv_res;
+ unsigned int vibrdrv_res;
+ unsigned int viblmotor_res;
+ unsigned int vibrmotor_res;
+
+ struct regulator_bulk_data supplies[TWL6040_NUM_SUPPLIES];
+
+ struct twl6040 *twl6040;
+};
+
+static irqreturn_t twl6040_vib_irq_handler(int irq, void *data)
+{
+ struct vibra_info *info = data;
+ struct twl6040 *twl6040 = info->twl6040;
+ u8 status;
+
+ status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
+ if (status & TWL6040_VIBLOCDET) {
+ dev_warn(info->dev, "Left Vibrator overcurrent detected\n");
+ twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLL,
+ TWL6040_VIBENA);
+ }
+ if (status & TWL6040_VIBROCDET) {
+ dev_warn(info->dev, "Right Vibrator overcurrent detected\n");
+ twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLR,
+ TWL6040_VIBENA);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void twl6040_vibra_enable(struct vibra_info *info)
+{
+ struct twl6040 *twl6040 = info->twl6040;
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(info->supplies), info->supplies);
+ if (ret) {
+ dev_err(info->dev, "failed to enable regulators %d\n", ret);
+ return;
+ }
+
+ twl6040_power(info->twl6040, 1);
+ if (twl6040_get_revid(twl6040) <= TWL6040_REV_ES1_1) {
+ /*
+ * ERRATA: Disable overcurrent protection for at least
+ * 3ms when enabling vibrator drivers to avoid false
+ * overcurrent detection
+ */
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
+ TWL6040_VIBENA | TWL6040_VIBCTRL);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
+ TWL6040_VIBENA | TWL6040_VIBCTRL);
+ usleep_range(3000, 3500);
+ }
+
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
+ TWL6040_VIBENA);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
+ TWL6040_VIBENA);
+
+ info->enabled = true;
+}
+
+static void twl6040_vibra_disable(struct vibra_info *info)
+{
+ struct twl6040 *twl6040 = info->twl6040;
+
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 0x00);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 0x00);
+ twl6040_power(info->twl6040, 0);
+
+ regulator_bulk_disable(ARRAY_SIZE(info->supplies), info->supplies);
+
+ info->enabled = false;
+}
+
+static u8 twl6040_vibra_code(int vddvib, int vibdrv_res, int motor_res,
+ int speed, int direction)
+{
+ int vpk, max_code;
+ u8 vibdat;
+
+ /* output swing */
+ vpk = (vddvib * motor_res * TWL6040_VIBRA_MOD) /
+ (100 * (vibdrv_res + motor_res));
+
+ /* 50mV per VIBDAT code step */
+ max_code = vpk / 50;
+ if (max_code > TWL6040_VIBDAT_MAX)
+ max_code = TWL6040_VIBDAT_MAX;
+
+ /* scale speed to max allowed code */
+ vibdat = (u8)((speed * max_code) / USHRT_MAX);
+
+ /* 2's complement for direction > 180 degrees */
+ vibdat *= direction;
+
+ return vibdat;
+}
+
+static void twl6040_vibra_set_effect(struct vibra_info *info)
+{
+ struct twl6040 *twl6040 = info->twl6040;
+ u8 vibdatl, vibdatr;
+ int volt;
+
+ /* weak motor */
+ volt = regulator_get_voltage(info->supplies[0].consumer) / 1000;
+ vibdatl = twl6040_vibra_code(volt, info->vibldrv_res,
+ info->viblmotor_res,
+ info->weak_speed, info->direction);
+
+ /* strong motor */
+ volt = regulator_get_voltage(info->supplies[1].consumer) / 1000;
+ vibdatr = twl6040_vibra_code(volt, info->vibrdrv_res,
+ info->vibrmotor_res,
+ info->strong_speed, info->direction);
+
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBDATL, vibdatl);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBDATR, vibdatr);
+}
+
+static void vibra_play_work(struct work_struct *work)
+{
+ struct vibra_info *info = container_of(work,
+ struct vibra_info, play_work);
+
+ mutex_lock(&info->mutex);
+
+ if (info->weak_speed || info->strong_speed) {
+ if (!info->enabled)
+ twl6040_vibra_enable(info);
+
+ twl6040_vibra_set_effect(info);
+ } else if (info->enabled)
+ twl6040_vibra_disable(info);
+
+ mutex_unlock(&info->mutex);
+}
+
+static int vibra_play(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+ int ret;
+
+ /* Do not allow effect, while the routing is set to use audio */
+ ret = twl6040_get_vibralr_status(info->twl6040);
+ if (ret & TWL6040_VIBSEL) {
+ dev_info(&input->dev, "Vibra is configured for audio\n");
+ return -EBUSY;
+ }
+
+ info->weak_speed = effect->u.rumble.weak_magnitude;
+ info->strong_speed = effect->u.rumble.strong_magnitude;
+ info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;
+
+ ret = queue_work(info->workqueue, &info->play_work);
+ if (!ret) {
+ dev_info(&input->dev, "work is already on queue\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void twl6040_vibra_close(struct input_dev *input)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+
+ cancel_work_sync(&info->play_work);
+
+ mutex_lock(&info->mutex);
+
+ if (info->enabled)
+ twl6040_vibra_disable(info);
+
+ mutex_unlock(&info->mutex);
+}
+
+static int __maybe_unused twl6040_vibra_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct vibra_info *info = platform_get_drvdata(pdev);
+
+ mutex_lock(&info->mutex);
+
+ if (info->enabled)
+ twl6040_vibra_disable(info);
+
+ mutex_unlock(&info->mutex);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL);
+
+static int twl6040_vibra_probe(struct platform_device *pdev)
+{
+ struct device *twl6040_core_dev = pdev->dev.parent;
+ struct device_node *twl6040_core_node;
+ struct vibra_info *info;
+ int vddvibl_uV = 0;
+ int vddvibr_uV = 0;
+ int error;
+
+ twl6040_core_node = of_find_node_by_name(twl6040_core_dev->of_node,
+ "vibra");
+ if (!twl6040_core_node) {
+ dev_err(&pdev->dev, "parent of node is missing?\n");
+ return -EINVAL;
+ }
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ of_node_put(twl6040_core_node);
+ dev_err(&pdev->dev, "couldn't allocate memory\n");
+ return -ENOMEM;
+ }
+
+ info->dev = &pdev->dev;
+
+ info->twl6040 = dev_get_drvdata(pdev->dev.parent);
+
+ of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
+ &info->vibldrv_res);
+ of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
+ &info->vibrdrv_res);
+ of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
+ &info->viblmotor_res);
+ of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
+ &info->vibrmotor_res);
+ of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV", &vddvibl_uV);
+ of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV", &vddvibr_uV);
+
+ of_node_put(twl6040_core_node);
+
+ if ((!info->vibldrv_res && !info->viblmotor_res) ||
+ (!info->vibrdrv_res && !info->vibrmotor_res)) {
+ dev_err(info->dev, "invalid vibra driver/motor resistance\n");
+ return -EINVAL;
+ }
+
+ info->irq = platform_get_irq(pdev, 0);
+ if (info->irq < 0) {
+ dev_err(info->dev, "invalid irq\n");
+ return -EINVAL;
+ }
+
+ mutex_init(&info->mutex);
+
+ error = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
+ twl6040_vib_irq_handler, 0,
+ "twl6040_irq_vib", info);
+ if (error) {
+ dev_err(info->dev, "VIB IRQ request failed: %d\n", error);
+ return error;
+ }
+
+ info->supplies[0].supply = "vddvibl";
+ info->supplies[1].supply = "vddvibr";
+ /*
+ * When booted with Device tree the regulators are attached to the
+ * parent device (twl6040 MFD core)
+ */
+ error = devm_regulator_bulk_get(twl6040_core_dev,
+ ARRAY_SIZE(info->supplies),
+ info->supplies);
+ if (error) {
+ dev_err(info->dev, "couldn't get regulators %d\n", error);
+ return error;
+ }
+
+ if (vddvibl_uV) {
+ error = regulator_set_voltage(info->supplies[0].consumer,
+ vddvibl_uV, vddvibl_uV);
+ if (error) {
+ dev_err(info->dev, "failed to set VDDVIBL volt %d\n",
+ error);
+ return error;
+ }
+ }
+
+ if (vddvibr_uV) {
+ error = regulator_set_voltage(info->supplies[1].consumer,
+ vddvibr_uV, vddvibr_uV);
+ if (error) {
+ dev_err(info->dev, "failed to set VDDVIBR volt %d\n",
+ error);
+ return error;
+ }
+ }
+
+ INIT_WORK(&info->play_work, vibra_play_work);
+
+ info->input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!info->input_dev) {
+ dev_err(info->dev, "couldn't allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_set_drvdata(info->input_dev, info);
+
+ info->input_dev->name = "twl6040:vibrator";
+ info->input_dev->id.version = 1;
+ info->input_dev->dev.parent = pdev->dev.parent;
+ info->input_dev->close = twl6040_vibra_close;
+ __set_bit(FF_RUMBLE, info->input_dev->ffbit);
+
+ error = input_ff_create_memless(info->input_dev, NULL, vibra_play);
+ if (error) {
+ dev_err(info->dev, "couldn't register vibrator to FF\n");
+ return error;
+ }
+
+ error = input_register_device(info->input_dev);
+ if (error) {
+ dev_err(info->dev, "couldn't register input device\n");
+ return error;
+ }
+
+ platform_set_drvdata(pdev, info);
+
+ return 0;
+}
+
+static struct platform_driver twl6040_vibra_driver = {
+ .probe = twl6040_vibra_probe,
+ .driver = {
+ .name = "twl6040-vibra",
+ .pm = &twl6040_vibra_pm_ops,
+ },
+};
+module_platform_driver(twl6040_vibra_driver);
+
+MODULE_ALIAS("platform:twl6040-vibra");
+MODULE_DESCRIPTION("TWL6040 Vibra driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>");
+MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
diff --git a/kernel/drivers/input/misc/uinput.c b/kernel/drivers/input/misc/uinput.c
new file mode 100644
index 000000000..421e29e4c
--- /dev/null
+++ b/kernel/drivers/input/misc/uinput.c
@@ -0,0 +1,943 @@
+/*
+ * User level driver support for input subsystem
+ *
+ * Heavily based on evdev.c by Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
+ *
+ * Changes/Revisions:
+ * 0.4 01/09/2014 (Benjamin Tissoires <benjamin.tissoires@redhat.com>)
+ * - add UI_GET_SYSNAME ioctl
+ * 0.3 09/04/2006 (Anssi Hannula <anssi.hannula@gmail.com>)
+ * - updated ff support for the changes in kernel interface
+ * - added MODULE_VERSION
+ * 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
+ * - added force feedback support
+ * - added UI_SET_PHYS
+ * 0.1 20/06/2002
+ * - first public version
+ */
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/uinput.h>
+#include <linux/input/mt.h>
+#include "../input-compat.h"
+
+static int uinput_dev_event(struct input_dev *dev,
+ unsigned int type, unsigned int code, int value)
+{
+ struct uinput_device *udev = input_get_drvdata(dev);
+
+ udev->buff[udev->head].type = type;
+ udev->buff[udev->head].code = code;
+ udev->buff[udev->head].value = value;
+ do_gettimeofday(&udev->buff[udev->head].time);
+ udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE;
+
+ wake_up_interruptible(&udev->waitq);
+
+ return 0;
+}
+
+/* Atomically allocate an ID for the given request. Returns 0 on success. */
+static bool uinput_request_alloc_id(struct uinput_device *udev,
+ struct uinput_request *request)
+{
+ unsigned int id;
+ bool reserved = false;
+
+ spin_lock(&udev->requests_lock);
+
+ for (id = 0; id < UINPUT_NUM_REQUESTS; id++) {
+ if (!udev->requests[id]) {
+ request->id = id;
+ udev->requests[id] = request;
+ reserved = true;
+ break;
+ }
+ }
+
+ spin_unlock(&udev->requests_lock);
+ return reserved;
+}
+
+static struct uinput_request *uinput_request_find(struct uinput_device *udev,
+ unsigned int id)
+{
+ /* Find an input request, by ID. Returns NULL if the ID isn't valid. */
+ if (id >= UINPUT_NUM_REQUESTS)
+ return NULL;
+
+ return udev->requests[id];
+}
+
+static int uinput_request_reserve_slot(struct uinput_device *udev,
+ struct uinput_request *request)
+{
+ /* Allocate slot. If none are available right away, wait. */
+ return wait_event_interruptible(udev->requests_waitq,
+ uinput_request_alloc_id(udev, request));
+}
+
+static void uinput_request_done(struct uinput_device *udev,
+ struct uinput_request *request)
+{
+ /* Mark slot as available */
+ udev->requests[request->id] = NULL;
+ wake_up(&udev->requests_waitq);
+
+ complete(&request->done);
+}
+
+static int uinput_request_send(struct uinput_device *udev,
+ struct uinput_request *request)
+{
+ int retval;
+
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ if (udev->state != UIST_CREATED) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ init_completion(&request->done);
+
+ /*
+ * Tell our userspace application about this new request
+ * by queueing an input event.
+ */
+ uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id);
+
+ out:
+ mutex_unlock(&udev->mutex);
+ return retval;
+}
+
+static int uinput_request_submit(struct uinput_device *udev,
+ struct uinput_request *request)
+{
+ int error;
+
+ error = uinput_request_reserve_slot(udev, request);
+ if (error)
+ return error;
+
+ error = uinput_request_send(udev, request);
+ if (error) {
+ uinput_request_done(udev, request);
+ return error;
+ }
+
+ wait_for_completion(&request->done);
+ return request->retval;
+}
+
+/*
+ * Fail all outstanding requests so handlers don't wait for the userspace
+ * to finish processing them.
+ */
+static void uinput_flush_requests(struct uinput_device *udev)
+{
+ struct uinput_request *request;
+ int i;
+
+ spin_lock(&udev->requests_lock);
+
+ for (i = 0; i < UINPUT_NUM_REQUESTS; i++) {
+ request = udev->requests[i];
+ if (request) {
+ request->retval = -ENODEV;
+ uinput_request_done(udev, request);
+ }
+ }
+
+ spin_unlock(&udev->requests_lock);
+}
+
+static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
+{
+ uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
+}
+
+static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
+}
+
+static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
+{
+ return uinput_dev_event(dev, EV_FF, effect_id, value);
+}
+
+static int uinput_dev_upload_effect(struct input_dev *dev,
+ struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ struct uinput_device *udev = input_get_drvdata(dev);
+ struct uinput_request request;
+
+ /*
+ * uinput driver does not currently support periodic effects with
+ * custom waveform since it does not have a way to pass buffer of
+ * samples (custom_data) to userspace. If ever there is a device
+ * supporting custom waveforms we would need to define an additional
+ * ioctl (UI_UPLOAD_SAMPLES) but for now we just bail out.
+ */
+ if (effect->type == FF_PERIODIC &&
+ effect->u.periodic.waveform == FF_CUSTOM)
+ return -EINVAL;
+
+ request.code = UI_FF_UPLOAD;
+ request.u.upload.effect = effect;
+ request.u.upload.old = old;
+
+ return uinput_request_submit(udev, &request);
+}
+
+static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
+{
+ struct uinput_device *udev = input_get_drvdata(dev);
+ struct uinput_request request;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ request.code = UI_FF_ERASE;
+ request.u.effect_id = effect_id;
+
+ return uinput_request_submit(udev, &request);
+}
+
+static void uinput_destroy_device(struct uinput_device *udev)
+{
+ const char *name, *phys;
+ struct input_dev *dev = udev->dev;
+ enum uinput_state old_state = udev->state;
+
+ udev->state = UIST_NEW_DEVICE;
+
+ if (dev) {
+ name = dev->name;
+ phys = dev->phys;
+ if (old_state == UIST_CREATED) {
+ uinput_flush_requests(udev);
+ input_unregister_device(dev);
+ } else {
+ input_free_device(dev);
+ }
+ kfree(name);
+ kfree(phys);
+ udev->dev = NULL;
+ }
+}
+
+static int uinput_create_device(struct uinput_device *udev)
+{
+ struct input_dev *dev = udev->dev;
+ int error;
+
+ if (udev->state != UIST_SETUP_COMPLETE) {
+ printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
+ return -EINVAL;
+ }
+
+ if (udev->ff_effects_max) {
+ error = input_ff_create(dev, udev->ff_effects_max);
+ if (error)
+ goto fail1;
+
+ dev->ff->upload = uinput_dev_upload_effect;
+ dev->ff->erase = uinput_dev_erase_effect;
+ dev->ff->playback = uinput_dev_playback;
+ dev->ff->set_gain = uinput_dev_set_gain;
+ dev->ff->set_autocenter = uinput_dev_set_autocenter;
+ }
+
+ error = input_register_device(udev->dev);
+ if (error)
+ goto fail2;
+
+ udev->state = UIST_CREATED;
+
+ return 0;
+
+ fail2: input_ff_destroy(dev);
+ fail1: uinput_destroy_device(udev);
+ return error;
+}
+
+static int uinput_open(struct inode *inode, struct file *file)
+{
+ struct uinput_device *newdev;
+
+ newdev = kzalloc(sizeof(struct uinput_device), GFP_KERNEL);
+ if (!newdev)
+ return -ENOMEM;
+
+ mutex_init(&newdev->mutex);
+ spin_lock_init(&newdev->requests_lock);
+ init_waitqueue_head(&newdev->requests_waitq);
+ init_waitqueue_head(&newdev->waitq);
+ newdev->state = UIST_NEW_DEVICE;
+
+ file->private_data = newdev;
+ nonseekable_open(inode, file);
+
+ return 0;
+}
+
+static int uinput_validate_absbits(struct input_dev *dev)
+{
+ unsigned int cnt;
+ int nslot;
+
+ if (!test_bit(EV_ABS, dev->evbit))
+ return 0;
+
+ /*
+ * Check if absmin/absmax/absfuzz/absflat are sane.
+ */
+
+ for (cnt = 0; cnt < ABS_CNT; cnt++) {
+ int min, max;
+ if (!test_bit(cnt, dev->absbit))
+ continue;
+
+ min = input_abs_get_min(dev, cnt);
+ max = input_abs_get_max(dev, cnt);
+
+ if ((min != 0 || max != 0) && max <= min) {
+ printk(KERN_DEBUG
+ "%s: invalid abs[%02x] min:%d max:%d\n",
+ UINPUT_NAME, cnt,
+ input_abs_get_min(dev, cnt),
+ input_abs_get_max(dev, cnt));
+ return -EINVAL;
+ }
+
+ if (input_abs_get_flat(dev, cnt) >
+ input_abs_get_max(dev, cnt) - input_abs_get_min(dev, cnt)) {
+ printk(KERN_DEBUG
+ "%s: abs_flat #%02x out of range: %d "
+ "(min:%d/max:%d)\n",
+ UINPUT_NAME, cnt,
+ input_abs_get_flat(dev, cnt),
+ input_abs_get_min(dev, cnt),
+ input_abs_get_max(dev, cnt));
+ return -EINVAL;
+ }
+ }
+
+ if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+ nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+ input_mt_init_slots(dev, nslot, 0);
+ } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+ input_set_events_per_packet(dev, 60);
+ }
+
+ return 0;
+}
+
+static int uinput_allocate_device(struct uinput_device *udev)
+{
+ udev->dev = input_allocate_device();
+ if (!udev->dev)
+ return -ENOMEM;
+
+ udev->dev->event = uinput_dev_event;
+ input_set_drvdata(udev->dev, udev);
+
+ return 0;
+}
+
+static int uinput_setup_device(struct uinput_device *udev,
+ const char __user *buffer, size_t count)
+{
+ struct uinput_user_dev *user_dev;
+ struct input_dev *dev;
+ int i;
+ int retval;
+
+ if (count != sizeof(struct uinput_user_dev))
+ return -EINVAL;
+
+ if (!udev->dev) {
+ retval = uinput_allocate_device(udev);
+ if (retval)
+ return retval;
+ }
+
+ dev = udev->dev;
+
+ user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
+ if (IS_ERR(user_dev))
+ return PTR_ERR(user_dev);
+
+ udev->ff_effects_max = user_dev->ff_effects_max;
+
+ /* Ensure name is filled in */
+ if (!user_dev->name[0]) {
+ retval = -EINVAL;
+ goto exit;
+ }
+
+ kfree(dev->name);
+ dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
+ GFP_KERNEL);
+ if (!dev->name) {
+ retval = -ENOMEM;
+ goto exit;
+ }
+
+ dev->id.bustype = user_dev->id.bustype;
+ dev->id.vendor = user_dev->id.vendor;
+ dev->id.product = user_dev->id.product;
+ dev->id.version = user_dev->id.version;
+
+ for (i = 0; i < ABS_CNT; i++) {
+ input_abs_set_max(dev, i, user_dev->absmax[i]);
+ input_abs_set_min(dev, i, user_dev->absmin[i]);
+ input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
+ input_abs_set_flat(dev, i, user_dev->absflat[i]);
+ }
+
+ retval = uinput_validate_absbits(dev);
+ if (retval < 0)
+ goto exit;
+
+ udev->state = UIST_SETUP_COMPLETE;
+ retval = count;
+
+ exit:
+ kfree(user_dev);
+ return retval;
+}
+
+static ssize_t uinput_inject_events(struct uinput_device *udev,
+ const char __user *buffer, size_t count)
+{
+ struct input_event ev;
+ size_t bytes = 0;
+
+ if (count != 0 && count < input_event_size())
+ return -EINVAL;
+
+ while (bytes + input_event_size() <= count) {
+ /*
+ * Note that even if some events were fetched successfully
+ * we are still going to return EFAULT instead of partial
+ * count to let userspace know that it got it's buffers
+ * all wrong.
+ */
+ if (input_event_from_user(buffer + bytes, &ev))
+ return -EFAULT;
+
+ input_event(udev->dev, ev.type, ev.code, ev.value);
+ bytes += input_event_size();
+ }
+
+ return bytes;
+}
+
+static ssize_t uinput_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct uinput_device *udev = file->private_data;
+ int retval;
+
+ if (count == 0)
+ return 0;
+
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ retval = udev->state == UIST_CREATED ?
+ uinput_inject_events(udev, buffer, count) :
+ uinput_setup_device(udev, buffer, count);
+
+ mutex_unlock(&udev->mutex);
+
+ return retval;
+}
+
+static bool uinput_fetch_next_event(struct uinput_device *udev,
+ struct input_event *event)
+{
+ bool have_event;
+
+ spin_lock_irq(&udev->dev->event_lock);
+
+ have_event = udev->head != udev->tail;
+ if (have_event) {
+ *event = udev->buff[udev->tail];
+ udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
+ }
+
+ spin_unlock_irq(&udev->dev->event_lock);
+
+ return have_event;
+}
+
+static ssize_t uinput_events_to_user(struct uinput_device *udev,
+ char __user *buffer, size_t count)
+{
+ struct input_event event;
+ size_t read = 0;
+
+ while (read + input_event_size() <= count &&
+ uinput_fetch_next_event(udev, &event)) {
+
+ if (input_event_to_user(buffer + read, &event))
+ return -EFAULT;
+
+ read += input_event_size();
+ }
+
+ return read;
+}
+
+static ssize_t uinput_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct uinput_device *udev = file->private_data;
+ ssize_t retval;
+
+ if (count != 0 && count < input_event_size())
+ return -EINVAL;
+
+ do {
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ if (udev->state != UIST_CREATED)
+ retval = -ENODEV;
+ else if (udev->head == udev->tail &&
+ (file->f_flags & O_NONBLOCK))
+ retval = -EAGAIN;
+ else
+ retval = uinput_events_to_user(udev, buffer, count);
+
+ mutex_unlock(&udev->mutex);
+
+ if (retval || count == 0)
+ break;
+
+ if (!(file->f_flags & O_NONBLOCK))
+ retval = wait_event_interruptible(udev->waitq,
+ udev->head != udev->tail ||
+ udev->state != UIST_CREATED);
+ } while (retval == 0);
+
+ return retval;
+}
+
+static unsigned int uinput_poll(struct file *file, poll_table *wait)
+{
+ struct uinput_device *udev = file->private_data;
+
+ poll_wait(file, &udev->waitq, wait);
+
+ if (udev->head != udev->tail)
+ return POLLIN | POLLRDNORM;
+
+ return 0;
+}
+
+static int uinput_release(struct inode *inode, struct file *file)
+{
+ struct uinput_device *udev = file->private_data;
+
+ uinput_destroy_device(udev);
+ kfree(udev);
+
+ return 0;
+}
+
+#ifdef CONFIG_COMPAT
+struct uinput_ff_upload_compat {
+ __u32 request_id;
+ __s32 retval;
+ struct ff_effect_compat effect;
+ struct ff_effect_compat old;
+};
+
+static int uinput_ff_upload_to_user(char __user *buffer,
+ const struct uinput_ff_upload *ff_up)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct uinput_ff_upload_compat ff_up_compat;
+
+ ff_up_compat.request_id = ff_up->request_id;
+ ff_up_compat.retval = ff_up->retval;
+ /*
+ * It so happens that the pointer that gives us the trouble
+ * is the last field in the structure. Since we don't support
+ * custom waveforms in uinput anyway we can just copy the whole
+ * thing (to the compat size) and ignore the pointer.
+ */
+ memcpy(&ff_up_compat.effect, &ff_up->effect,
+ sizeof(struct ff_effect_compat));
+ memcpy(&ff_up_compat.old, &ff_up->old,
+ sizeof(struct ff_effect_compat));
+
+ if (copy_to_user(buffer, &ff_up_compat,
+ sizeof(struct uinput_ff_upload_compat)))
+ return -EFAULT;
+ } else {
+ if (copy_to_user(buffer, ff_up,
+ sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int uinput_ff_upload_from_user(const char __user *buffer,
+ struct uinput_ff_upload *ff_up)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct uinput_ff_upload_compat ff_up_compat;
+
+ if (copy_from_user(&ff_up_compat, buffer,
+ sizeof(struct uinput_ff_upload_compat)))
+ return -EFAULT;
+
+ ff_up->request_id = ff_up_compat.request_id;
+ ff_up->retval = ff_up_compat.retval;
+ memcpy(&ff_up->effect, &ff_up_compat.effect,
+ sizeof(struct ff_effect_compat));
+ memcpy(&ff_up->old, &ff_up_compat.old,
+ sizeof(struct ff_effect_compat));
+
+ } else {
+ if (copy_from_user(ff_up, buffer,
+ sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+#else
+
+static int uinput_ff_upload_to_user(char __user *buffer,
+ const struct uinput_ff_upload *ff_up)
+{
+ if (copy_to_user(buffer, ff_up, sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int uinput_ff_upload_from_user(const char __user *buffer,
+ struct uinput_ff_upload *ff_up)
+{
+ if (copy_from_user(ff_up, buffer, sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+
+ return 0;
+}
+
+#endif
+
+#define uinput_set_bit(_arg, _bit, _max) \
+({ \
+ int __ret = 0; \
+ if (udev->state == UIST_CREATED) \
+ __ret = -EINVAL; \
+ else if ((_arg) > (_max)) \
+ __ret = -EINVAL; \
+ else set_bit((_arg), udev->dev->_bit); \
+ __ret; \
+})
+
+static int uinput_str_to_user(void __user *dest, const char *str,
+ unsigned int maxlen)
+{
+ char __user *p = dest;
+ int len, ret;
+
+ if (!str)
+ return -ENOENT;
+
+ if (maxlen == 0)
+ return -EINVAL;
+
+ len = strlen(str) + 1;
+ if (len > maxlen)
+ len = maxlen;
+
+ ret = copy_to_user(p, str, len);
+ if (ret)
+ return -EFAULT;
+
+ /* force terminating '\0' */
+ ret = put_user(0, p + len - 1);
+ return ret ? -EFAULT : len;
+}
+
+static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
+ unsigned long arg, void __user *p)
+{
+ int retval;
+ struct uinput_device *udev = file->private_data;
+ struct uinput_ff_upload ff_up;
+ struct uinput_ff_erase ff_erase;
+ struct uinput_request *req;
+ char *phys;
+ const char *name;
+ unsigned int size;
+
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ if (!udev->dev) {
+ retval = uinput_allocate_device(udev);
+ if (retval)
+ goto out;
+ }
+
+ switch (cmd) {
+ case UI_GET_VERSION:
+ if (put_user(UINPUT_VERSION,
+ (unsigned int __user *)p))
+ retval = -EFAULT;
+ goto out;
+
+ case UI_DEV_CREATE:
+ retval = uinput_create_device(udev);
+ goto out;
+
+ case UI_DEV_DESTROY:
+ uinput_destroy_device(udev);
+ goto out;
+
+ case UI_SET_EVBIT:
+ retval = uinput_set_bit(arg, evbit, EV_MAX);
+ goto out;
+
+ case UI_SET_KEYBIT:
+ retval = uinput_set_bit(arg, keybit, KEY_MAX);
+ goto out;
+
+ case UI_SET_RELBIT:
+ retval = uinput_set_bit(arg, relbit, REL_MAX);
+ goto out;
+
+ case UI_SET_ABSBIT:
+ retval = uinput_set_bit(arg, absbit, ABS_MAX);
+ goto out;
+
+ case UI_SET_MSCBIT:
+ retval = uinput_set_bit(arg, mscbit, MSC_MAX);
+ goto out;
+
+ case UI_SET_LEDBIT:
+ retval = uinput_set_bit(arg, ledbit, LED_MAX);
+ goto out;
+
+ case UI_SET_SNDBIT:
+ retval = uinput_set_bit(arg, sndbit, SND_MAX);
+ goto out;
+
+ case UI_SET_FFBIT:
+ retval = uinput_set_bit(arg, ffbit, FF_MAX);
+ goto out;
+
+ case UI_SET_SWBIT:
+ retval = uinput_set_bit(arg, swbit, SW_MAX);
+ goto out;
+
+ case UI_SET_PROPBIT:
+ retval = uinput_set_bit(arg, propbit, INPUT_PROP_MAX);
+ goto out;
+
+ case UI_SET_PHYS:
+ if (udev->state == UIST_CREATED) {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ phys = strndup_user(p, 1024);
+ if (IS_ERR(phys)) {
+ retval = PTR_ERR(phys);
+ goto out;
+ }
+
+ kfree(udev->dev->phys);
+ udev->dev->phys = phys;
+ goto out;
+
+ case UI_BEGIN_FF_UPLOAD:
+ retval = uinput_ff_upload_from_user(p, &ff_up);
+ if (retval)
+ goto out;
+
+ req = uinput_request_find(udev, ff_up.request_id);
+ if (!req || req->code != UI_FF_UPLOAD ||
+ !req->u.upload.effect) {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ ff_up.retval = 0;
+ ff_up.effect = *req->u.upload.effect;
+ if (req->u.upload.old)
+ ff_up.old = *req->u.upload.old;
+ else
+ memset(&ff_up.old, 0, sizeof(struct ff_effect));
+
+ retval = uinput_ff_upload_to_user(p, &ff_up);
+ goto out;
+
+ case UI_BEGIN_FF_ERASE:
+ if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ goto out;
+ }
+
+ req = uinput_request_find(udev, ff_erase.request_id);
+ if (!req || req->code != UI_FF_ERASE) {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ ff_erase.retval = 0;
+ ff_erase.effect_id = req->u.effect_id;
+ if (copy_to_user(p, &ff_erase, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ goto out;
+ }
+
+ goto out;
+
+ case UI_END_FF_UPLOAD:
+ retval = uinput_ff_upload_from_user(p, &ff_up);
+ if (retval)
+ goto out;
+
+ req = uinput_request_find(udev, ff_up.request_id);
+ if (!req || req->code != UI_FF_UPLOAD ||
+ !req->u.upload.effect) {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ req->retval = ff_up.retval;
+ uinput_request_done(udev, req);
+ goto out;
+
+ case UI_END_FF_ERASE:
+ if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ goto out;
+ }
+
+ req = uinput_request_find(udev, ff_erase.request_id);
+ if (!req || req->code != UI_FF_ERASE) {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ req->retval = ff_erase.retval;
+ uinput_request_done(udev, req);
+ goto out;
+ }
+
+ size = _IOC_SIZE(cmd);
+
+ /* Now check variable-length commands */
+ switch (cmd & ~IOCSIZE_MASK) {
+ case UI_GET_SYSNAME(0):
+ if (udev->state != UIST_CREATED) {
+ retval = -ENOENT;
+ goto out;
+ }
+ name = dev_name(&udev->dev->dev);
+ retval = uinput_str_to_user(p, name, size);
+ goto out;
+ }
+
+ retval = -EINVAL;
+ out:
+ mutex_unlock(&udev->mutex);
+ return retval;
+}
+
+static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return uinput_ioctl_handler(file, cmd, arg, (void __user *)arg);
+}
+
+#ifdef CONFIG_COMPAT
+static long uinput_compat_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
+}
+#endif
+
+static const struct file_operations uinput_fops = {
+ .owner = THIS_MODULE,
+ .open = uinput_open,
+ .release = uinput_release,
+ .read = uinput_read,
+ .write = uinput_write,
+ .poll = uinput_poll,
+ .unlocked_ioctl = uinput_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = uinput_compat_ioctl,
+#endif
+ .llseek = no_llseek,
+};
+
+static struct miscdevice uinput_misc = {
+ .fops = &uinput_fops,
+ .minor = UINPUT_MINOR,
+ .name = UINPUT_NAME,
+};
+MODULE_ALIAS_MISCDEV(UINPUT_MINOR);
+MODULE_ALIAS("devname:" UINPUT_NAME);
+
+static int __init uinput_init(void)
+{
+ return misc_register(&uinput_misc);
+}
+
+static void __exit uinput_exit(void)
+{
+ misc_deregister(&uinput_misc);
+}
+
+MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
+MODULE_DESCRIPTION("User level driver support for input subsystem");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.3");
+
+module_init(uinput_init);
+module_exit(uinput_exit);
diff --git a/kernel/drivers/input/misc/wistron_btns.c b/kernel/drivers/input/misc/wistron_btns.c
new file mode 100644
index 000000000..e25f87ba1
--- /dev/null
+++ b/kernel/drivers/input/misc/wistron_btns.c
@@ -0,0 +1,1407 @@
+/*
+ * Wistron laptop button driver
+ * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
+ * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
+ * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
+ *
+ * You can redistribute and/or modify this program under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/io.h>
+#include <linux/dmi.h>
+#include <linux/init.h>
+#include <linux/input-polldev.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/mc146818rtc.h>
+#include <linux/module.h>
+#include <linux/preempt.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+
+/* How often we poll keys - msecs */
+#define POLL_INTERVAL_DEFAULT 500 /* when idle */
+#define POLL_INTERVAL_BURST 100 /* when a key was recently pressed */
+
+/* BIOS subsystem IDs */
+#define WIFI 0x35
+#define BLUETOOTH 0x34
+#define MAIL_LED 0x31
+
+MODULE_AUTHOR("Miloslav Trmac <mitr@volny.cz>");
+MODULE_DESCRIPTION("Wistron laptop button driver");
+MODULE_LICENSE("GPL v2");
+
+static bool force; /* = 0; */
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Load even if computer is not in database");
+
+static char *keymap_name; /* = NULL; */
+module_param_named(keymap, keymap_name, charp, 0);
+MODULE_PARM_DESC(keymap, "Keymap name, if it can't be autodetected [generic, 1557/MS2141]");
+
+static struct platform_device *wistron_device;
+
+ /* BIOS interface implementation */
+
+static void __iomem *bios_entry_point; /* BIOS routine entry point */
+static void __iomem *bios_code_map_base;
+static void __iomem *bios_data_map_base;
+
+static u8 cmos_address;
+
+struct regs {
+ u32 eax, ebx, ecx;
+};
+
+static void call_bios(struct regs *regs)
+{
+ unsigned long flags;
+
+ preempt_disable();
+ local_irq_save(flags);
+ asm volatile ("pushl %%ebp;"
+ "movl %7, %%ebp;"
+ "call *%6;"
+ "popl %%ebp"
+ : "=a" (regs->eax), "=b" (regs->ebx), "=c" (regs->ecx)
+ : "0" (regs->eax), "1" (regs->ebx), "2" (regs->ecx),
+ "m" (bios_entry_point), "m" (bios_data_map_base)
+ : "edx", "edi", "esi", "memory");
+ local_irq_restore(flags);
+ preempt_enable();
+}
+
+static ssize_t __init locate_wistron_bios(void __iomem *base)
+{
+ static unsigned char __initdata signature[] =
+ { 0x42, 0x21, 0x55, 0x30 };
+ ssize_t offset;
+
+ for (offset = 0; offset < 0x10000; offset += 0x10) {
+ if (check_signature(base + offset, signature,
+ sizeof(signature)) != 0)
+ return offset;
+ }
+ return -1;
+}
+
+static int __init map_bios(void)
+{
+ void __iomem *base;
+ ssize_t offset;
+ u32 entry_point;
+
+ base = ioremap(0xF0000, 0x10000); /* Can't fail */
+ offset = locate_wistron_bios(base);
+ if (offset < 0) {
+ printk(KERN_ERR "wistron_btns: BIOS entry point not found\n");
+ iounmap(base);
+ return -ENODEV;
+ }
+
+ entry_point = readl(base + offset + 5);
+ printk(KERN_DEBUG
+ "wistron_btns: BIOS signature found at %p, entry point %08X\n",
+ base + offset, entry_point);
+
+ if (entry_point >= 0xF0000) {
+ bios_code_map_base = base;
+ bios_entry_point = bios_code_map_base + (entry_point & 0xFFFF);
+ } else {
+ iounmap(base);
+ bios_code_map_base = ioremap(entry_point & ~0x3FFF, 0x4000);
+ if (bios_code_map_base == NULL) {
+ printk(KERN_ERR
+ "wistron_btns: Can't map BIOS code at %08X\n",
+ entry_point & ~0x3FFF);
+ goto err;
+ }
+ bios_entry_point = bios_code_map_base + (entry_point & 0x3FFF);
+ }
+ /* The Windows driver maps 0x10000 bytes, we keep only one page... */
+ bios_data_map_base = ioremap(0x400, 0xc00);
+ if (bios_data_map_base == NULL) {
+ printk(KERN_ERR "wistron_btns: Can't map BIOS data\n");
+ goto err_code;
+ }
+ return 0;
+
+err_code:
+ iounmap(bios_code_map_base);
+err:
+ return -ENOMEM;
+}
+
+static inline void unmap_bios(void)
+{
+ iounmap(bios_code_map_base);
+ iounmap(bios_data_map_base);
+}
+
+ /* BIOS calls */
+
+static u16 bios_pop_queue(void)
+{
+ struct regs regs;
+
+ memset(&regs, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x061C;
+ regs.ecx = 0x0000;
+ call_bios(&regs);
+
+ return regs.eax;
+}
+
+static void bios_attach(void)
+{
+ struct regs regs;
+
+ memset(&regs, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x012E;
+ call_bios(&regs);
+}
+
+static void bios_detach(void)
+{
+ struct regs regs;
+
+ memset(&regs, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x002E;
+ call_bios(&regs);
+}
+
+static u8 bios_get_cmos_address(void)
+{
+ struct regs regs;
+
+ memset(&regs, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x051C;
+ call_bios(&regs);
+
+ return regs.ecx;
+}
+
+static u16 bios_get_default_setting(u8 subsys)
+{
+ struct regs regs;
+
+ memset(&regs, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x0200 | subsys;
+ call_bios(&regs);
+
+ return regs.eax;
+}
+
+static void bios_set_state(u8 subsys, int enable)
+{
+ struct regs regs;
+
+ memset(&regs, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = (enable ? 0x0100 : 0x0000) | subsys;
+ call_bios(&regs);
+}
+
+/* Hardware database */
+
+#define KE_WIFI (KE_LAST + 1)
+#define KE_BLUETOOTH (KE_LAST + 2)
+
+#define FE_MAIL_LED 0x01
+#define FE_WIFI_LED 0x02
+#define FE_UNTESTED 0x80
+
+static struct key_entry *keymap; /* = NULL; Current key map */
+static bool have_wifi;
+static bool have_bluetooth;
+static int leds_present; /* bitmask of leds present */
+
+static int __init dmi_matched(const struct dmi_system_id *dmi)
+{
+ const struct key_entry *key;
+
+ keymap = dmi->driver_data;
+ for (key = keymap; key->type != KE_END; key++) {
+ if (key->type == KE_WIFI)
+ have_wifi = true;
+ else if (key->type == KE_BLUETOOTH)
+ have_bluetooth = true;
+ }
+ leds_present = key->code & (FE_MAIL_LED | FE_WIFI_LED);
+
+ return 1;
+}
+
+static struct key_entry keymap_empty[] __initdata = {
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_fs_amilo_pro_v3505[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} }, /* Fn+F1 */
+ { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Fn+F4 */
+ { KE_BLUETOOTH, 0x30 }, /* Fn+F10 */
+ { KE_KEY, 0x31, {KEY_MAIL} }, /* mail button */
+ { KE_KEY, 0x36, {KEY_WWW} }, /* www button */
+ { KE_WIFI, 0x78 }, /* satellite dish button */
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_fs_amilo_pro_v8210[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} }, /* Fn+F1 */
+ { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Fn+F4 */
+ { KE_BLUETOOTH, 0x30 }, /* Fn+F10 */
+ { KE_KEY, 0x31, {KEY_MAIL} }, /* mail button */
+ { KE_KEY, 0x36, {KEY_WWW} }, /* www button */
+ { KE_WIFI, 0x78 }, /* satelite dish button */
+ { KE_END, FE_WIFI_LED }
+};
+
+static struct key_entry keymap_fujitsu_n3510[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x71, {KEY_STOPCD} },
+ { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x74, {KEY_REWIND} },
+ { KE_KEY, 0x78, {KEY_FORWARD} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_wistron_ms2111[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, FE_MAIL_LED }
+};
+
+static struct key_entry keymap_wistron_md40100[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_wistron_ms2141[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_acer_aspire_1500[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x49, {KEY_CONFIG} },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_aspire_1600[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x49, {KEY_CONFIG} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+/* 3020 has been tested */
+static struct key_entry keymap_acer_aspire_5020[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x6a, {KEY_CONFIG} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_2410[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x6d, {KEY_POWER} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x6a, {KEY_CONFIG} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_110[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
+ { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_300[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_380[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} }, /* not 370 */
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+/* unusual map */
+static struct key_entry keymap_acer_travelmate_220[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_MAIL} },
+ { KE_KEY, 0x12, {KEY_WWW} },
+ { KE_KEY, 0x13, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_PROG1} },
+ { KE_END, FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_230[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_240[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_350[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_MAIL} },
+ { KE_KEY, 0x14, {KEY_PROG3} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_360[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_MAIL} },
+ { KE_KEY, 0x14, {KEY_PROG3} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_KEY, 0x40, {KEY_WLAN} },
+ { KE_END, FE_WIFI_LED | FE_UNTESTED } /* no mail led */
+};
+
+/* Wifi subsystem only activates the led. Therefore we need to pass
+ * wifi event as a normal key, then userspace can really change the wifi state.
+ * TODO we need to export led state to userspace (wifi and mail) */
+static struct key_entry keymap_acer_travelmate_610[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x14, {KEY_MAIL} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_KEY, 0x40, {KEY_WLAN} },
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED }
+};
+
+static struct key_entry keymap_acer_travelmate_630[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} }, /* not 620 */
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_aopen_1559as[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x06, {KEY_PROG3} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 },
+};
+
+static struct key_entry keymap_fs_amilo_d88x0[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_wistron_md2900[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_wistron_md96500[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
+ { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_wistron_generic[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
+ { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x14, {KEY_MAIL} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_KEY, 0x40, {KEY_WLAN} },
+ { KE_KEY, 0x49, {KEY_CONFIG} },
+ { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
+ { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
+ { KE_KEY, 0x6a, {KEY_CONFIG} },
+ { KE_KEY, 0x6d, {KEY_POWER} },
+ { KE_KEY, 0x71, {KEY_STOPCD} },
+ { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x74, {KEY_REWIND} },
+ { KE_KEY, 0x78, {KEY_FORWARD} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_aopen_1557[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_prestigio[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+
+/*
+ * If your machine is not here (which is currently rather likely), please send
+ * a list of buttons and their key codes (reported when loading this module
+ * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
+ */
+static const struct dmi_system_id dmi_ids[] __initconst = {
+ {
+ /* Fujitsu-Siemens Amilo Pro V2000 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2000"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Fujitsu-Siemens Amilo Pro Edition V3505 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Edition V3505"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v3505
+ },
+ {
+ /* Fujitsu-Siemens Amilo Pro Edition V8210 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Series V8210"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v8210
+ },
+ {
+ /* Fujitsu-Siemens Amilo M7400 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO M "),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Maxdata Pro 7000 DX */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MAXDATA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Pro 7000"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Fujitsu N3510 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N3510"),
+ },
+ .driver_data = keymap_fujitsu_n3510
+ },
+ {
+ /* Acer Aspire 1500 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
+ },
+ .driver_data = keymap_acer_aspire_1500
+ },
+ {
+ /* Acer Aspire 1600 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1600"),
+ },
+ .driver_data = keymap_acer_aspire_1600
+ },
+ {
+ /* Acer Aspire 3020 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3020"),
+ },
+ .driver_data = keymap_acer_aspire_5020
+ },
+ {
+ /* Acer Aspire 5020 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5020"),
+ },
+ .driver_data = keymap_acer_aspire_5020
+ },
+ {
+ /* Acer TravelMate 2100 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2100"),
+ },
+ .driver_data = keymap_acer_aspire_5020
+ },
+ {
+ /* Acer TravelMate 2410 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2410"),
+ },
+ .driver_data = keymap_acer_travelmate_2410
+ },
+ {
+ /* Acer TravelMate C300 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C300"),
+ },
+ .driver_data = keymap_acer_travelmate_300
+ },
+ {
+ /* Acer TravelMate C100 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C100"),
+ },
+ .driver_data = keymap_acer_travelmate_300
+ },
+ {
+ /* Acer TravelMate C110 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C110"),
+ },
+ .driver_data = keymap_acer_travelmate_110
+ },
+ {
+ /* Acer TravelMate 380 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 380"),
+ },
+ .driver_data = keymap_acer_travelmate_380
+ },
+ {
+ /* Acer TravelMate 370 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 370"),
+ },
+ .driver_data = keymap_acer_travelmate_380 /* keyboard minus 1 key */
+ },
+ {
+ /* Acer TravelMate 220 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 220"),
+ },
+ .driver_data = keymap_acer_travelmate_220
+ },
+ {
+ /* Acer TravelMate 260 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 260"),
+ },
+ .driver_data = keymap_acer_travelmate_220
+ },
+ {
+ /* Acer TravelMate 230 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 230"),
+ /* acerhk looks for "TravelMate F4..." ?! */
+ },
+ .driver_data = keymap_acer_travelmate_230
+ },
+ {
+ /* Acer TravelMate 280 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 280"),
+ },
+ .driver_data = keymap_acer_travelmate_230
+ },
+ {
+ /* Acer TravelMate 240 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 240"),
+ },
+ .driver_data = keymap_acer_travelmate_240
+ },
+ {
+ /* Acer TravelMate 250 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 250"),
+ },
+ .driver_data = keymap_acer_travelmate_240
+ },
+ {
+ /* Acer TravelMate 2424NWXCi */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
+ },
+ .driver_data = keymap_acer_travelmate_240
+ },
+ {
+ /* Acer TravelMate 350 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 350"),
+ },
+ .driver_data = keymap_acer_travelmate_350
+ },
+ {
+ /* Acer TravelMate 360 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
+ },
+ .driver_data = keymap_acer_travelmate_360
+ },
+ {
+ /* Acer TravelMate 610 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 610"),
+ },
+ .driver_data = keymap_acer_travelmate_610
+ },
+ {
+ /* Acer TravelMate 620 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 620"),
+ },
+ .driver_data = keymap_acer_travelmate_630
+ },
+ {
+ /* Acer TravelMate 630 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 630"),
+ },
+ .driver_data = keymap_acer_travelmate_630
+ },
+ {
+ /* AOpen 1559AS */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "E2U"),
+ DMI_MATCH(DMI_BOARD_NAME, "E2U"),
+ },
+ .driver_data = keymap_aopen_1559as
+ },
+ {
+ /* Medion MD 9783 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MD 9783"),
+ },
+ .driver_data = keymap_wistron_ms2111
+ },
+ {
+ /* Medion MD 40100 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WID2000"),
+ },
+ .driver_data = keymap_wistron_md40100
+ },
+ {
+ /* Medion MD 2900 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2000"),
+ },
+ .driver_data = keymap_wistron_md2900
+ },
+ {
+ /* Medion MD 42200 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2030"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Medion MD 96500 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2040"),
+ },
+ .driver_data = keymap_wistron_md96500
+ },
+ {
+ /* Medion MD 95400 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2050"),
+ },
+ .driver_data = keymap_wistron_md96500
+ },
+ {
+ /* Fujitsu Siemens Amilo D7820 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), /* not sure */
+ DMI_MATCH(DMI_PRODUCT_NAME, "Amilo D"),
+ },
+ .driver_data = keymap_fs_amilo_d88x0
+ },
+ {
+ /* Fujitsu Siemens Amilo D88x0 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO D"),
+ },
+ .driver_data = keymap_fs_amilo_d88x0
+ },
+ { NULL, }
+};
+MODULE_DEVICE_TABLE(dmi, dmi_ids);
+
+/* Copy the good keymap, as the original ones are free'd */
+static int __init copy_keymap(void)
+{
+ const struct key_entry *key;
+ struct key_entry *new_keymap;
+ unsigned int length = 1;
+
+ for (key = keymap; key->type != KE_END; key++)
+ length++;
+
+ new_keymap = kmemdup(keymap, length * sizeof(struct key_entry),
+ GFP_KERNEL);
+ if (!new_keymap)
+ return -ENOMEM;
+
+ keymap = new_keymap;
+
+ return 0;
+}
+
+static int __init select_keymap(void)
+{
+ dmi_check_system(dmi_ids);
+ if (keymap_name != NULL) {
+ if (strcmp (keymap_name, "1557/MS2141") == 0)
+ keymap = keymap_wistron_ms2141;
+ else if (strcmp (keymap_name, "aopen1557") == 0)
+ keymap = keymap_aopen_1557;
+ else if (strcmp (keymap_name, "prestigio") == 0)
+ keymap = keymap_prestigio;
+ else if (strcmp (keymap_name, "generic") == 0)
+ keymap = keymap_wistron_generic;
+ else {
+ printk(KERN_ERR "wistron_btns: Keymap unknown\n");
+ return -EINVAL;
+ }
+ }
+ if (keymap == NULL) {
+ if (!force) {
+ printk(KERN_ERR "wistron_btns: System unknown\n");
+ return -ENODEV;
+ }
+ keymap = keymap_empty;
+ }
+
+ return copy_keymap();
+}
+
+ /* Input layer interface */
+
+static struct input_polled_dev *wistron_idev;
+static unsigned long jiffies_last_press;
+static bool wifi_enabled;
+static bool bluetooth_enabled;
+
+ /* led management */
+static void wistron_mail_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ bios_set_state(MAIL_LED, (value != LED_OFF) ? 1 : 0);
+}
+
+/* same as setting up wifi card, but for laptops on which the led is managed */
+static void wistron_wifi_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ bios_set_state(WIFI, (value != LED_OFF) ? 1 : 0);
+}
+
+static struct led_classdev wistron_mail_led = {
+ .name = "wistron:green:mail",
+ .brightness_set = wistron_mail_led_set,
+};
+
+static struct led_classdev wistron_wifi_led = {
+ .name = "wistron:red:wifi",
+ .brightness_set = wistron_wifi_led_set,
+};
+
+static void wistron_led_init(struct device *parent)
+{
+ if (leds_present & FE_WIFI_LED) {
+ u16 wifi = bios_get_default_setting(WIFI);
+ if (wifi & 1) {
+ wistron_wifi_led.brightness = (wifi & 2) ? LED_FULL : LED_OFF;
+ if (led_classdev_register(parent, &wistron_wifi_led))
+ leds_present &= ~FE_WIFI_LED;
+ else
+ bios_set_state(WIFI, wistron_wifi_led.brightness);
+
+ } else
+ leds_present &= ~FE_WIFI_LED;
+ }
+
+ if (leds_present & FE_MAIL_LED) {
+ /* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
+ wistron_mail_led.brightness = LED_OFF;
+ if (led_classdev_register(parent, &wistron_mail_led))
+ leds_present &= ~FE_MAIL_LED;
+ else
+ bios_set_state(MAIL_LED, wistron_mail_led.brightness);
+ }
+}
+
+static void wistron_led_remove(void)
+{
+ if (leds_present & FE_MAIL_LED)
+ led_classdev_unregister(&wistron_mail_led);
+
+ if (leds_present & FE_WIFI_LED)
+ led_classdev_unregister(&wistron_wifi_led);
+}
+
+static inline void wistron_led_suspend(void)
+{
+ if (leds_present & FE_MAIL_LED)
+ led_classdev_suspend(&wistron_mail_led);
+
+ if (leds_present & FE_WIFI_LED)
+ led_classdev_suspend(&wistron_wifi_led);
+}
+
+static inline void wistron_led_resume(void)
+{
+ if (leds_present & FE_MAIL_LED)
+ led_classdev_resume(&wistron_mail_led);
+
+ if (leds_present & FE_WIFI_LED)
+ led_classdev_resume(&wistron_wifi_led);
+}
+
+static void handle_key(u8 code)
+{
+ const struct key_entry *key =
+ sparse_keymap_entry_from_scancode(wistron_idev->input, code);
+
+ if (key) {
+ switch (key->type) {
+ case KE_WIFI:
+ if (have_wifi) {
+ wifi_enabled = !wifi_enabled;
+ bios_set_state(WIFI, wifi_enabled);
+ }
+ break;
+
+ case KE_BLUETOOTH:
+ if (have_bluetooth) {
+ bluetooth_enabled = !bluetooth_enabled;
+ bios_set_state(BLUETOOTH, bluetooth_enabled);
+ }
+ break;
+
+ default:
+ sparse_keymap_report_entry(wistron_idev->input,
+ key, 1, true);
+ break;
+ }
+ jiffies_last_press = jiffies;
+ } else
+ printk(KERN_NOTICE
+ "wistron_btns: Unknown key code %02X\n", code);
+}
+
+static void poll_bios(bool discard)
+{
+ u8 qlen;
+ u16 val;
+
+ for (;;) {
+ qlen = CMOS_READ(cmos_address);
+ if (qlen == 0)
+ break;
+ val = bios_pop_queue();
+ if (val != 0 && !discard)
+ handle_key((u8)val);
+ }
+}
+
+static void wistron_flush(struct input_polled_dev *dev)
+{
+ /* Flush stale event queue */
+ poll_bios(true);
+}
+
+static void wistron_poll(struct input_polled_dev *dev)
+{
+ poll_bios(false);
+
+ /* Increase poll frequency if user is currently pressing keys (< 2s ago) */
+ if (time_before(jiffies, jiffies_last_press + 2 * HZ))
+ dev->poll_interval = POLL_INTERVAL_BURST;
+ else
+ dev->poll_interval = POLL_INTERVAL_DEFAULT;
+}
+
+static int wistron_setup_keymap(struct input_dev *dev,
+ struct key_entry *entry)
+{
+ switch (entry->type) {
+
+ /* if wifi or bluetooth are not available, create normal keys */
+ case KE_WIFI:
+ if (!have_wifi) {
+ entry->type = KE_KEY;
+ entry->keycode = KEY_WLAN;
+ }
+ break;
+
+ case KE_BLUETOOTH:
+ if (!have_bluetooth) {
+ entry->type = KE_KEY;
+ entry->keycode = KEY_BLUETOOTH;
+ }
+ break;
+
+ case KE_END:
+ if (entry->code & FE_UNTESTED)
+ printk(KERN_WARNING "Untested laptop multimedia keys, "
+ "please report success or failure to "
+ "eric.piel@tremplin-utc.net\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int setup_input_dev(void)
+{
+ struct input_dev *input_dev;
+ int error;
+
+ wistron_idev = input_allocate_polled_device();
+ if (!wistron_idev)
+ return -ENOMEM;
+
+ wistron_idev->open = wistron_flush;
+ wistron_idev->poll = wistron_poll;
+ wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;
+
+ input_dev = wistron_idev->input;
+ input_dev->name = "Wistron laptop buttons";
+ input_dev->phys = "wistron/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &wistron_device->dev;
+
+ error = sparse_keymap_setup(input_dev, keymap, wistron_setup_keymap);
+ if (error)
+ goto err_free_dev;
+
+ error = input_register_polled_device(wistron_idev);
+ if (error)
+ goto err_free_keymap;
+
+ return 0;
+
+ err_free_keymap:
+ sparse_keymap_free(input_dev);
+ err_free_dev:
+ input_free_polled_device(wistron_idev);
+ return error;
+}
+
+/* Driver core */
+
+static int wistron_probe(struct platform_device *dev)
+{
+ int err;
+
+ bios_attach();
+ cmos_address = bios_get_cmos_address();
+
+ if (have_wifi) {
+ u16 wifi = bios_get_default_setting(WIFI);
+ if (wifi & 1)
+ wifi_enabled = wifi & 2;
+ else
+ have_wifi = 0;
+
+ if (have_wifi)
+ bios_set_state(WIFI, wifi_enabled);
+ }
+
+ if (have_bluetooth) {
+ u16 bt = bios_get_default_setting(BLUETOOTH);
+ if (bt & 1)
+ bluetooth_enabled = bt & 2;
+ else
+ have_bluetooth = false;
+
+ if (have_bluetooth)
+ bios_set_state(BLUETOOTH, bluetooth_enabled);
+ }
+
+ wistron_led_init(&dev->dev);
+
+ err = setup_input_dev();
+ if (err) {
+ bios_detach();
+ return err;
+ }
+
+ return 0;
+}
+
+static int wistron_remove(struct platform_device *dev)
+{
+ wistron_led_remove();
+ input_unregister_polled_device(wistron_idev);
+ sparse_keymap_free(wistron_idev->input);
+ input_free_polled_device(wistron_idev);
+ bios_detach();
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int wistron_suspend(struct device *dev)
+{
+ if (have_wifi)
+ bios_set_state(WIFI, 0);
+
+ if (have_bluetooth)
+ bios_set_state(BLUETOOTH, 0);
+
+ wistron_led_suspend();
+
+ return 0;
+}
+
+static int wistron_resume(struct device *dev)
+{
+ if (have_wifi)
+ bios_set_state(WIFI, wifi_enabled);
+
+ if (have_bluetooth)
+ bios_set_state(BLUETOOTH, bluetooth_enabled);
+
+ wistron_led_resume();
+
+ poll_bios(true);
+
+ return 0;
+}
+
+static const struct dev_pm_ops wistron_pm_ops = {
+ .suspend = wistron_suspend,
+ .resume = wistron_resume,
+ .poweroff = wistron_suspend,
+ .restore = wistron_resume,
+};
+#endif
+
+static struct platform_driver wistron_driver = {
+ .driver = {
+ .name = "wistron-bios",
+#ifdef CONFIG_PM
+ .pm = &wistron_pm_ops,
+#endif
+ },
+ .probe = wistron_probe,
+ .remove = wistron_remove,
+};
+
+static int __init wb_module_init(void)
+{
+ int err;
+
+ err = select_keymap();
+ if (err)
+ return err;
+
+ err = map_bios();
+ if (err)
+ goto err_free_keymap;
+
+ err = platform_driver_register(&wistron_driver);
+ if (err)
+ goto err_unmap_bios;
+
+ wistron_device = platform_device_alloc("wistron-bios", -1);
+ if (!wistron_device) {
+ err = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ err = platform_device_add(wistron_device);
+ if (err)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(wistron_device);
+ err_unregister_driver:
+ platform_driver_unregister(&wistron_driver);
+ err_unmap_bios:
+ unmap_bios();
+ err_free_keymap:
+ kfree(keymap);
+
+ return err;
+}
+
+static void __exit wb_module_exit(void)
+{
+ platform_device_unregister(wistron_device);
+ platform_driver_unregister(&wistron_driver);
+ unmap_bios();
+ kfree(keymap);
+}
+
+module_init(wb_module_init);
+module_exit(wb_module_exit);
diff --git a/kernel/drivers/input/misc/wm831x-on.c b/kernel/drivers/input/misc/wm831x-on.c
new file mode 100644
index 000000000..59d4f7bcb
--- /dev/null
+++ b/kernel/drivers/input/misc/wm831x-on.c
@@ -0,0 +1,149 @@
+/**
+ * wm831x-on.c - WM831X ON pin driver
+ *
+ * Copyright (C) 2009 Wolfson Microelectronics plc
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+#include <linux/mfd/wm831x/core.h>
+
+struct wm831x_on {
+ struct input_dev *dev;
+ struct delayed_work work;
+ struct wm831x *wm831x;
+};
+
+/*
+ * The chip gives us an interrupt when the ON pin is asserted but we
+ * then need to poll to see when the pin is deasserted.
+ */
+static void wm831x_poll_on(struct work_struct *work)
+{
+ struct wm831x_on *wm831x_on = container_of(work, struct wm831x_on,
+ work.work);
+ struct wm831x *wm831x = wm831x_on->wm831x;
+ int poll, ret;
+
+ ret = wm831x_reg_read(wm831x, WM831X_ON_PIN_CONTROL);
+ if (ret >= 0) {
+ poll = !(ret & WM831X_ON_PIN_STS);
+
+ input_report_key(wm831x_on->dev, KEY_POWER, poll);
+ input_sync(wm831x_on->dev);
+ } else {
+ dev_err(wm831x->dev, "Failed to read ON status: %d\n", ret);
+ poll = 1;
+ }
+
+ if (poll)
+ schedule_delayed_work(&wm831x_on->work, 100);
+}
+
+static irqreturn_t wm831x_on_irq(int irq, void *data)
+{
+ struct wm831x_on *wm831x_on = data;
+
+ schedule_delayed_work(&wm831x_on->work, 0);
+
+ return IRQ_HANDLED;
+}
+
+static int wm831x_on_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_on *wm831x_on;
+ int irq = wm831x_irq(wm831x, platform_get_irq(pdev, 0));
+ int ret;
+
+ wm831x_on = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_on),
+ GFP_KERNEL);
+ if (!wm831x_on) {
+ dev_err(&pdev->dev, "Can't allocate data\n");
+ return -ENOMEM;
+ }
+
+ wm831x_on->wm831x = wm831x;
+ INIT_DELAYED_WORK(&wm831x_on->work, wm831x_poll_on);
+
+ wm831x_on->dev = devm_input_allocate_device(&pdev->dev);
+ if (!wm831x_on->dev) {
+ dev_err(&pdev->dev, "Can't allocate input dev\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ wm831x_on->dev->evbit[0] = BIT_MASK(EV_KEY);
+ wm831x_on->dev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+ wm831x_on->dev->name = "wm831x_on";
+ wm831x_on->dev->phys = "wm831x_on/input0";
+ wm831x_on->dev->dev.parent = &pdev->dev;
+
+ ret = request_threaded_irq(irq, NULL, wm831x_on_irq,
+ IRQF_TRIGGER_RISING, "wm831x_on",
+ wm831x_on);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Unable to request IRQ: %d\n", ret);
+ goto err_input_dev;
+ }
+ ret = input_register_device(wm831x_on->dev);
+ if (ret) {
+ dev_dbg(&pdev->dev, "Can't register input device: %d\n", ret);
+ goto err_irq;
+ }
+
+ platform_set_drvdata(pdev, wm831x_on);
+
+ return 0;
+
+err_irq:
+ free_irq(irq, wm831x_on);
+err_input_dev:
+err:
+ return ret;
+}
+
+static int wm831x_on_remove(struct platform_device *pdev)
+{
+ struct wm831x_on *wm831x_on = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ free_irq(irq, wm831x_on);
+ cancel_delayed_work_sync(&wm831x_on->work);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_on_driver = {
+ .probe = wm831x_on_probe,
+ .remove = wm831x_on_remove,
+ .driver = {
+ .name = "wm831x-on",
+ },
+};
+module_platform_driver(wm831x_on_driver);
+
+MODULE_ALIAS("platform:wm831x-on");
+MODULE_DESCRIPTION("WM831x ON pin");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+
diff --git a/kernel/drivers/input/misc/xen-kbdfront.c b/kernel/drivers/input/misc/xen-kbdfront.c
new file mode 100644
index 000000000..95599e478
--- /dev/null
+++ b/kernel/drivers/input/misc/xen-kbdfront.c
@@ -0,0 +1,401 @@
+/*
+ * Xen para-virtual input device
+ *
+ * Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
+ * Copyright (C) 2006-2008 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
+ *
+ * Based on linux/drivers/input/mouse/sermouse.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+#include <asm/xen/hypervisor.h>
+
+#include <xen/xen.h>
+#include <xen/events.h>
+#include <xen/page.h>
+#include <xen/grant_table.h>
+#include <xen/interface/grant_table.h>
+#include <xen/interface/io/fbif.h>
+#include <xen/interface/io/kbdif.h>
+#include <xen/xenbus.h>
+#include <xen/platform_pci.h>
+
+struct xenkbd_info {
+ struct input_dev *kbd;
+ struct input_dev *ptr;
+ struct xenkbd_page *page;
+ int gref;
+ int irq;
+ struct xenbus_device *xbdev;
+ char phys[32];
+};
+
+static int xenkbd_remove(struct xenbus_device *);
+static int xenkbd_connect_backend(struct xenbus_device *, struct xenkbd_info *);
+static void xenkbd_disconnect_backend(struct xenkbd_info *);
+
+/*
+ * Note: if you need to send out events, see xenfb_do_update() for how
+ * to do that.
+ */
+
+static irqreturn_t input_handler(int rq, void *dev_id)
+{
+ struct xenkbd_info *info = dev_id;
+ struct xenkbd_page *page = info->page;
+ __u32 cons, prod;
+
+ prod = page->in_prod;
+ if (prod == page->in_cons)
+ return IRQ_HANDLED;
+ rmb(); /* ensure we see ring contents up to prod */
+ for (cons = page->in_cons; cons != prod; cons++) {
+ union xenkbd_in_event *event;
+ struct input_dev *dev;
+ event = &XENKBD_IN_RING_REF(page, cons);
+
+ dev = info->ptr;
+ switch (event->type) {
+ case XENKBD_TYPE_MOTION:
+ input_report_rel(dev, REL_X, event->motion.rel_x);
+ input_report_rel(dev, REL_Y, event->motion.rel_y);
+ if (event->motion.rel_z)
+ input_report_rel(dev, REL_WHEEL,
+ -event->motion.rel_z);
+ break;
+ case XENKBD_TYPE_KEY:
+ dev = NULL;
+ if (test_bit(event->key.keycode, info->kbd->keybit))
+ dev = info->kbd;
+ if (test_bit(event->key.keycode, info->ptr->keybit))
+ dev = info->ptr;
+ if (dev)
+ input_report_key(dev, event->key.keycode,
+ event->key.pressed);
+ else
+ pr_warning("unhandled keycode 0x%x\n",
+ event->key.keycode);
+ break;
+ case XENKBD_TYPE_POS:
+ input_report_abs(dev, ABS_X, event->pos.abs_x);
+ input_report_abs(dev, ABS_Y, event->pos.abs_y);
+ if (event->pos.rel_z)
+ input_report_rel(dev, REL_WHEEL,
+ -event->pos.rel_z);
+ break;
+ }
+ if (dev)
+ input_sync(dev);
+ }
+ mb(); /* ensure we got ring contents */
+ page->in_cons = cons;
+ notify_remote_via_irq(info->irq);
+
+ return IRQ_HANDLED;
+}
+
+static int xenkbd_probe(struct xenbus_device *dev,
+ const struct xenbus_device_id *id)
+{
+ int ret, i, abs;
+ struct xenkbd_info *info;
+ struct input_dev *kbd, *ptr;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ xenbus_dev_fatal(dev, -ENOMEM, "allocating info structure");
+ return -ENOMEM;
+ }
+ dev_set_drvdata(&dev->dev, info);
+ info->xbdev = dev;
+ info->irq = -1;
+ info->gref = -1;
+ snprintf(info->phys, sizeof(info->phys), "xenbus/%s", dev->nodename);
+
+ info->page = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
+ if (!info->page)
+ goto error_nomem;
+
+ if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-abs-pointer", "%d", &abs) < 0)
+ abs = 0;
+ if (abs)
+ xenbus_printf(XBT_NIL, dev->nodename, "request-abs-pointer", "1");
+
+ /* keyboard */
+ kbd = input_allocate_device();
+ if (!kbd)
+ goto error_nomem;
+ kbd->name = "Xen Virtual Keyboard";
+ kbd->phys = info->phys;
+ kbd->id.bustype = BUS_PCI;
+ kbd->id.vendor = 0x5853;
+ kbd->id.product = 0xffff;
+
+ __set_bit(EV_KEY, kbd->evbit);
+ for (i = KEY_ESC; i < KEY_UNKNOWN; i++)
+ __set_bit(i, kbd->keybit);
+ for (i = KEY_OK; i < KEY_MAX; i++)
+ __set_bit(i, kbd->keybit);
+
+ ret = input_register_device(kbd);
+ if (ret) {
+ input_free_device(kbd);
+ xenbus_dev_fatal(dev, ret, "input_register_device(kbd)");
+ goto error;
+ }
+ info->kbd = kbd;
+
+ /* pointing device */
+ ptr = input_allocate_device();
+ if (!ptr)
+ goto error_nomem;
+ ptr->name = "Xen Virtual Pointer";
+ ptr->phys = info->phys;
+ ptr->id.bustype = BUS_PCI;
+ ptr->id.vendor = 0x5853;
+ ptr->id.product = 0xfffe;
+
+ if (abs) {
+ __set_bit(EV_ABS, ptr->evbit);
+ input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0);
+ input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0);
+ } else {
+ input_set_capability(ptr, EV_REL, REL_X);
+ input_set_capability(ptr, EV_REL, REL_Y);
+ }
+ input_set_capability(ptr, EV_REL, REL_WHEEL);
+
+ __set_bit(EV_KEY, ptr->evbit);
+ for (i = BTN_LEFT; i <= BTN_TASK; i++)
+ __set_bit(i, ptr->keybit);
+
+ ret = input_register_device(ptr);
+ if (ret) {
+ input_free_device(ptr);
+ xenbus_dev_fatal(dev, ret, "input_register_device(ptr)");
+ goto error;
+ }
+ info->ptr = ptr;
+
+ ret = xenkbd_connect_backend(dev, info);
+ if (ret < 0)
+ goto error;
+
+ return 0;
+
+ error_nomem:
+ ret = -ENOMEM;
+ xenbus_dev_fatal(dev, ret, "allocating device memory");
+ error:
+ xenkbd_remove(dev);
+ return ret;
+}
+
+static int xenkbd_resume(struct xenbus_device *dev)
+{
+ struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
+
+ xenkbd_disconnect_backend(info);
+ memset(info->page, 0, PAGE_SIZE);
+ return xenkbd_connect_backend(dev, info);
+}
+
+static int xenkbd_remove(struct xenbus_device *dev)
+{
+ struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
+
+ xenkbd_disconnect_backend(info);
+ if (info->kbd)
+ input_unregister_device(info->kbd);
+ if (info->ptr)
+ input_unregister_device(info->ptr);
+ free_page((unsigned long)info->page);
+ kfree(info);
+ return 0;
+}
+
+static int xenkbd_connect_backend(struct xenbus_device *dev,
+ struct xenkbd_info *info)
+{
+ int ret, evtchn;
+ struct xenbus_transaction xbt;
+
+ ret = gnttab_grant_foreign_access(dev->otherend_id,
+ virt_to_mfn(info->page), 0);
+ if (ret < 0)
+ return ret;
+ info->gref = ret;
+
+ ret = xenbus_alloc_evtchn(dev, &evtchn);
+ if (ret)
+ goto error_grant;
+ ret = bind_evtchn_to_irqhandler(evtchn, input_handler,
+ 0, dev->devicetype, info);
+ if (ret < 0) {
+ xenbus_dev_fatal(dev, ret, "bind_evtchn_to_irqhandler");
+ goto error_evtchan;
+ }
+ info->irq = ret;
+
+ again:
+ ret = xenbus_transaction_start(&xbt);
+ if (ret) {
+ xenbus_dev_fatal(dev, ret, "starting transaction");
+ goto error_irqh;
+ }
+ ret = xenbus_printf(xbt, dev->nodename, "page-ref", "%lu",
+ virt_to_mfn(info->page));
+ if (ret)
+ goto error_xenbus;
+ ret = xenbus_printf(xbt, dev->nodename, "page-gref", "%u", info->gref);
+ if (ret)
+ goto error_xenbus;
+ ret = xenbus_printf(xbt, dev->nodename, "event-channel", "%u",
+ evtchn);
+ if (ret)
+ goto error_xenbus;
+ ret = xenbus_transaction_end(xbt, 0);
+ if (ret) {
+ if (ret == -EAGAIN)
+ goto again;
+ xenbus_dev_fatal(dev, ret, "completing transaction");
+ goto error_irqh;
+ }
+
+ xenbus_switch_state(dev, XenbusStateInitialised);
+ return 0;
+
+ error_xenbus:
+ xenbus_transaction_end(xbt, 1);
+ xenbus_dev_fatal(dev, ret, "writing xenstore");
+ error_irqh:
+ unbind_from_irqhandler(info->irq, info);
+ info->irq = -1;
+ error_evtchan:
+ xenbus_free_evtchn(dev, evtchn);
+ error_grant:
+ gnttab_end_foreign_access(info->gref, 0, 0UL);
+ info->gref = -1;
+ return ret;
+}
+
+static void xenkbd_disconnect_backend(struct xenkbd_info *info)
+{
+ if (info->irq >= 0)
+ unbind_from_irqhandler(info->irq, info);
+ info->irq = -1;
+ if (info->gref >= 0)
+ gnttab_end_foreign_access(info->gref, 0, 0UL);
+ info->gref = -1;
+}
+
+static void xenkbd_backend_changed(struct xenbus_device *dev,
+ enum xenbus_state backend_state)
+{
+ struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
+ int ret, val;
+
+ switch (backend_state) {
+ case XenbusStateInitialising:
+ case XenbusStateInitialised:
+ case XenbusStateReconfiguring:
+ case XenbusStateReconfigured:
+ case XenbusStateUnknown:
+ break;
+
+ case XenbusStateInitWait:
+InitWait:
+ ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+ "feature-abs-pointer", "%d", &val);
+ if (ret < 0)
+ val = 0;
+ if (val) {
+ ret = xenbus_printf(XBT_NIL, info->xbdev->nodename,
+ "request-abs-pointer", "1");
+ if (ret)
+ pr_warning("xenkbd: can't request abs-pointer");
+ }
+
+ xenbus_switch_state(dev, XenbusStateConnected);
+ break;
+
+ case XenbusStateConnected:
+ /*
+ * Work around xenbus race condition: If backend goes
+ * through InitWait to Connected fast enough, we can
+ * get Connected twice here.
+ */
+ if (dev->state != XenbusStateConnected)
+ goto InitWait; /* no InitWait seen yet, fudge it */
+
+ /* Set input abs params to match backend screen res */
+ if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+ "width", "%d", &val) > 0)
+ input_set_abs_params(info->ptr, ABS_X, 0, val, 0, 0);
+
+ if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+ "height", "%d", &val) > 0)
+ input_set_abs_params(info->ptr, ABS_Y, 0, val, 0, 0);
+
+ break;
+
+ case XenbusStateClosed:
+ if (dev->state == XenbusStateClosed)
+ break;
+ /* Missed the backend's CLOSING state -- fallthrough */
+ case XenbusStateClosing:
+ xenbus_frontend_closed(dev);
+ break;
+ }
+}
+
+static const struct xenbus_device_id xenkbd_ids[] = {
+ { "vkbd" },
+ { "" }
+};
+
+static struct xenbus_driver xenkbd_driver = {
+ .ids = xenkbd_ids,
+ .probe = xenkbd_probe,
+ .remove = xenkbd_remove,
+ .resume = xenkbd_resume,
+ .otherend_changed = xenkbd_backend_changed,
+};
+
+static int __init xenkbd_init(void)
+{
+ if (!xen_domain())
+ return -ENODEV;
+
+ /* Nothing to do if running in dom0. */
+ if (xen_initial_domain())
+ return -ENODEV;
+
+ if (!xen_has_pv_devices())
+ return -ENODEV;
+
+ return xenbus_register_frontend(&xenkbd_driver);
+}
+
+static void __exit xenkbd_cleanup(void)
+{
+ xenbus_unregister_driver(&xenkbd_driver);
+}
+
+module_init(xenkbd_init);
+module_exit(xenkbd_cleanup);
+
+MODULE_DESCRIPTION("Xen virtual keyboard/pointer device frontend");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("xen:vkbd");
diff --git a/kernel/drivers/input/misc/yealink.c b/kernel/drivers/input/misc/yealink.c
new file mode 100644
index 000000000..79c964c07
--- /dev/null
+++ b/kernel/drivers/input/misc/yealink.c
@@ -0,0 +1,1007 @@
+/*
+ * drivers/usb/input/yealink.c
+ *
+ * Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*
+ * Description:
+ * Driver for the USB-P1K voip usb phone.
+ * This device is produced by Yealink Network Technology Co Ltd
+ * but may be branded under several names:
+ * - Yealink usb-p1k
+ * - Tiptel 115
+ * - ...
+ *
+ * This driver is based on:
+ * - the usbb2k-api http://savannah.nongnu.org/projects/usbb2k-api/
+ * - information from http://memeteau.free.fr/usbb2k
+ * - the xpad-driver drivers/input/joystick/xpad.c
+ *
+ * Thanks to:
+ * - Olivier Vandorpe, for providing the usbb2k-api.
+ * - Martin Diehl, for spotting my memory allocation bug.
+ *
+ * History:
+ * 20050527 henk First version, functional keyboard. Keyboard events
+ * will pop-up on the ../input/eventX bus.
+ * 20050531 henk Added led, LCD, dialtone and sysfs interface.
+ * 20050610 henk Cleanups, make it ready for public consumption.
+ * 20050630 henk Cleanups, fixes in response to comments.
+ * 20050701 henk sysfs write serialisation, fix potential unload races
+ * 20050801 henk Added ringtone, restructure USB
+ * 20050816 henk Merge 2.6.13-rc6
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/rwsem.h>
+#include <linux/usb/input.h>
+#include <linux/map_to_7segment.h>
+
+#include "yealink.h"
+
+#define DRIVER_VERSION "yld-20051230"
+#define DRIVER_AUTHOR "Henk Vergonet"
+#define DRIVER_DESC "Yealink phone driver"
+
+#define YEALINK_POLLING_FREQUENCY 10 /* in [Hz] */
+
+struct yld_status {
+ u8 lcd[24];
+ u8 led;
+ u8 dialtone;
+ u8 ringtone;
+ u8 keynum;
+} __attribute__ ((packed));
+
+/*
+ * Register the LCD segment and icon map
+ */
+#define _LOC(k,l) { .a = (k), .m = (l) }
+#define _SEG(t, a, am, b, bm, c, cm, d, dm, e, em, f, fm, g, gm) \
+ { .type = (t), \
+ .u = { .s = { _LOC(a, am), _LOC(b, bm), _LOC(c, cm), \
+ _LOC(d, dm), _LOC(e, em), _LOC(g, gm), \
+ _LOC(f, fm) } } }
+#define _PIC(t, h, hm, n) \
+ { .type = (t), \
+ .u = { .p = { .name = (n), .a = (h), .m = (hm) } } }
+
+static const struct lcd_segment_map {
+ char type;
+ union {
+ struct pictogram_map {
+ u8 a,m;
+ char name[10];
+ } p;
+ struct segment_map {
+ u8 a,m;
+ } s[7];
+ } u;
+} lcdMap[] = {
+#include "yealink.h"
+};
+
+struct yealink_dev {
+ struct input_dev *idev; /* input device */
+ struct usb_device *udev; /* usb device */
+ struct usb_interface *intf; /* usb interface */
+
+ /* irq input channel */
+ struct yld_ctl_packet *irq_data;
+ dma_addr_t irq_dma;
+ struct urb *urb_irq;
+
+ /* control output channel */
+ struct yld_ctl_packet *ctl_data;
+ dma_addr_t ctl_dma;
+ struct usb_ctrlrequest *ctl_req;
+ struct urb *urb_ctl;
+
+ char phys[64]; /* physical device path */
+
+ u8 lcdMap[ARRAY_SIZE(lcdMap)]; /* state of LCD, LED ... */
+ int key_code; /* last reported key */
+
+ unsigned int shutdown:1;
+
+ int stat_ix;
+ union {
+ struct yld_status s;
+ u8 b[sizeof(struct yld_status)];
+ } master, copy;
+};
+
+
+/*******************************************************************************
+ * Yealink lcd interface
+ ******************************************************************************/
+
+/*
+ * Register a default 7 segment character set
+ */
+static SEG7_DEFAULT_MAP(map_seg7);
+
+ /* Display a char,
+ * char '\9' and '\n' are placeholders and do not overwrite the original text.
+ * A space will always hide an icon.
+ */
+static int setChar(struct yealink_dev *yld, int el, int chr)
+{
+ int i, a, m, val;
+
+ if (el >= ARRAY_SIZE(lcdMap))
+ return -EINVAL;
+
+ if (chr == '\t' || chr == '\n')
+ return 0;
+
+ yld->lcdMap[el] = chr;
+
+ if (lcdMap[el].type == '.') {
+ a = lcdMap[el].u.p.a;
+ m = lcdMap[el].u.p.m;
+ if (chr != ' ')
+ yld->master.b[a] |= m;
+ else
+ yld->master.b[a] &= ~m;
+ return 0;
+ }
+
+ val = map_to_seg7(&map_seg7, chr);
+ for (i = 0; i < ARRAY_SIZE(lcdMap[0].u.s); i++) {
+ m = lcdMap[el].u.s[i].m;
+
+ if (m == 0)
+ continue;
+
+ a = lcdMap[el].u.s[i].a;
+ if (val & 1)
+ yld->master.b[a] |= m;
+ else
+ yld->master.b[a] &= ~m;
+ val = val >> 1;
+ }
+ return 0;
+};
+
+/*******************************************************************************
+ * Yealink key interface
+ ******************************************************************************/
+
+/* Map device buttons to internal key events.
+ *
+ * USB-P1K button layout:
+ *
+ * up
+ * IN OUT
+ * down
+ *
+ * pickup C hangup
+ * 1 2 3
+ * 4 5 6
+ * 7 8 9
+ * * 0 #
+ *
+ * The "up" and "down" keys, are symbolised by arrows on the button.
+ * The "pickup" and "hangup" keys are symbolised by a green and red phone
+ * on the button.
+ */
+static int map_p1k_to_key(int scancode)
+{
+ switch(scancode) { /* phone key: */
+ case 0x23: return KEY_LEFT; /* IN */
+ case 0x33: return KEY_UP; /* up */
+ case 0x04: return KEY_RIGHT; /* OUT */
+ case 0x24: return KEY_DOWN; /* down */
+ case 0x03: return KEY_ENTER; /* pickup */
+ case 0x14: return KEY_BACKSPACE; /* C */
+ case 0x13: return KEY_ESC; /* hangup */
+ case 0x00: return KEY_1; /* 1 */
+ case 0x01: return KEY_2; /* 2 */
+ case 0x02: return KEY_3; /* 3 */
+ case 0x10: return KEY_4; /* 4 */
+ case 0x11: return KEY_5; /* 5 */
+ case 0x12: return KEY_6; /* 6 */
+ case 0x20: return KEY_7; /* 7 */
+ case 0x21: return KEY_8; /* 8 */
+ case 0x22: return KEY_9; /* 9 */
+ case 0x30: return KEY_KPASTERISK; /* * */
+ case 0x31: return KEY_0; /* 0 */
+ case 0x32: return KEY_LEFTSHIFT |
+ KEY_3 << 8; /* # */
+ }
+ return -EINVAL;
+}
+
+/* Completes a request by converting the data into events for the
+ * input subsystem.
+ *
+ * The key parameter can be cascaded: key2 << 8 | key1
+ */
+static void report_key(struct yealink_dev *yld, int key)
+{
+ struct input_dev *idev = yld->idev;
+
+ if (yld->key_code >= 0) {
+ /* old key up */
+ input_report_key(idev, yld->key_code & 0xff, 0);
+ if (yld->key_code >> 8)
+ input_report_key(idev, yld->key_code >> 8, 0);
+ }
+
+ yld->key_code = key;
+ if (key >= 0) {
+ /* new valid key */
+ input_report_key(idev, key & 0xff, 1);
+ if (key >> 8)
+ input_report_key(idev, key >> 8, 1);
+ }
+ input_sync(idev);
+}
+
+/*******************************************************************************
+ * Yealink usb communication interface
+ ******************************************************************************/
+
+static int yealink_cmd(struct yealink_dev *yld, struct yld_ctl_packet *p)
+{
+ u8 *buf = (u8 *)p;
+ int i;
+ u8 sum = 0;
+
+ for(i=0; i<USB_PKT_LEN-1; i++)
+ sum -= buf[i];
+ p->sum = sum;
+ return usb_control_msg(yld->udev,
+ usb_sndctrlpipe(yld->udev, 0),
+ USB_REQ_SET_CONFIGURATION,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+ 0x200, 3,
+ p, sizeof(*p),
+ USB_CTRL_SET_TIMEOUT);
+}
+
+static u8 default_ringtone[] = {
+ 0xEF, /* volume [0-255] */
+ 0xFB, 0x1E, 0x00, 0x0C, /* 1250 [hz], 12/100 [s] */
+ 0xFC, 0x18, 0x00, 0x0C, /* 1000 [hz], 12/100 [s] */
+ 0xFB, 0x1E, 0x00, 0x0C,
+ 0xFC, 0x18, 0x00, 0x0C,
+ 0xFB, 0x1E, 0x00, 0x0C,
+ 0xFC, 0x18, 0x00, 0x0C,
+ 0xFB, 0x1E, 0x00, 0x0C,
+ 0xFC, 0x18, 0x00, 0x0C,
+ 0xFF, 0xFF, 0x01, 0x90, /* silent, 400/100 [s] */
+ 0x00, 0x00 /* end of sequence */
+};
+
+static int yealink_set_ringtone(struct yealink_dev *yld, u8 *buf, size_t size)
+{
+ struct yld_ctl_packet *p = yld->ctl_data;
+ int ix, len;
+
+ if (size <= 0)
+ return -EINVAL;
+
+ /* Set the ringtone volume */
+ memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
+ yld->ctl_data->cmd = CMD_RING_VOLUME;
+ yld->ctl_data->size = 1;
+ yld->ctl_data->data[0] = buf[0];
+ yealink_cmd(yld, p);
+
+ buf++;
+ size--;
+
+ p->cmd = CMD_RING_NOTE;
+ ix = 0;
+ while (size != ix) {
+ len = size - ix;
+ if (len > sizeof(p->data))
+ len = sizeof(p->data);
+ p->size = len;
+ p->offset = cpu_to_be16(ix);
+ memcpy(p->data, &buf[ix], len);
+ yealink_cmd(yld, p);
+ ix += len;
+ }
+ return 0;
+}
+
+/* keep stat_master & stat_copy in sync.
+ */
+static int yealink_do_idle_tasks(struct yealink_dev *yld)
+{
+ u8 val;
+ int i, ix, len;
+
+ ix = yld->stat_ix;
+
+ memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
+ yld->ctl_data->cmd = CMD_KEYPRESS;
+ yld->ctl_data->size = 1;
+ yld->ctl_data->sum = 0xff - CMD_KEYPRESS;
+
+ /* If state update pointer wraps do a KEYPRESS first. */
+ if (ix >= sizeof(yld->master)) {
+ yld->stat_ix = 0;
+ return 0;
+ }
+
+ /* find update candidates: copy != master */
+ do {
+ val = yld->master.b[ix];
+ if (val != yld->copy.b[ix])
+ goto send_update;
+ } while (++ix < sizeof(yld->master));
+
+ /* nothing todo, wait a bit and poll for a KEYPRESS */
+ yld->stat_ix = 0;
+ /* TODO how can we wait abit. ??
+ * msleep_interruptible(1000 / YEALINK_POLLING_FREQUENCY);
+ */
+ return 0;
+
+send_update:
+
+ /* Setup an appropriate update request */
+ yld->copy.b[ix] = val;
+ yld->ctl_data->data[0] = val;
+
+ switch(ix) {
+ case offsetof(struct yld_status, led):
+ yld->ctl_data->cmd = CMD_LED;
+ yld->ctl_data->sum = -1 - CMD_LED - val;
+ break;
+ case offsetof(struct yld_status, dialtone):
+ yld->ctl_data->cmd = CMD_DIALTONE;
+ yld->ctl_data->sum = -1 - CMD_DIALTONE - val;
+ break;
+ case offsetof(struct yld_status, ringtone):
+ yld->ctl_data->cmd = CMD_RINGTONE;
+ yld->ctl_data->sum = -1 - CMD_RINGTONE - val;
+ break;
+ case offsetof(struct yld_status, keynum):
+ val--;
+ val &= 0x1f;
+ yld->ctl_data->cmd = CMD_SCANCODE;
+ yld->ctl_data->offset = cpu_to_be16(val);
+ yld->ctl_data->data[0] = 0;
+ yld->ctl_data->sum = -1 - CMD_SCANCODE - val;
+ break;
+ default:
+ len = sizeof(yld->master.s.lcd) - ix;
+ if (len > sizeof(yld->ctl_data->data))
+ len = sizeof(yld->ctl_data->data);
+
+ /* Combine up to <len> consecutive LCD bytes in a singe request
+ */
+ yld->ctl_data->cmd = CMD_LCD;
+ yld->ctl_data->offset = cpu_to_be16(ix);
+ yld->ctl_data->size = len;
+ yld->ctl_data->sum = -CMD_LCD - ix - val - len;
+ for(i=1; i<len; i++) {
+ ix++;
+ val = yld->master.b[ix];
+ yld->copy.b[ix] = val;
+ yld->ctl_data->data[i] = val;
+ yld->ctl_data->sum -= val;
+ }
+ }
+ yld->stat_ix = ix + 1;
+ return 1;
+}
+
+/* Decide on how to handle responses
+ *
+ * The state transition diagram is somethhing like:
+ *
+ * syncState<--+
+ * | |
+ * | idle
+ * \|/ |
+ * init --ok--> waitForKey --ok--> getKey
+ * ^ ^ |
+ * | +-------ok-------+
+ * error,start
+ *
+ */
+static void urb_irq_callback(struct urb *urb)
+{
+ struct yealink_dev *yld = urb->context;
+ int ret, status = urb->status;
+
+ if (status)
+ dev_err(&yld->intf->dev, "%s - urb status %d\n",
+ __func__, status);
+
+ switch (yld->irq_data->cmd) {
+ case CMD_KEYPRESS:
+
+ yld->master.s.keynum = yld->irq_data->data[0];
+ break;
+
+ case CMD_SCANCODE:
+ dev_dbg(&yld->intf->dev, "get scancode %x\n",
+ yld->irq_data->data[0]);
+
+ report_key(yld, map_p1k_to_key(yld->irq_data->data[0]));
+ break;
+
+ default:
+ dev_err(&yld->intf->dev, "unexpected response %x\n",
+ yld->irq_data->cmd);
+ }
+
+ yealink_do_idle_tasks(yld);
+
+ if (!yld->shutdown) {
+ ret = usb_submit_urb(yld->urb_ctl, GFP_ATOMIC);
+ if (ret && ret != -EPERM)
+ dev_err(&yld->intf->dev,
+ "%s - usb_submit_urb failed %d\n",
+ __func__, ret);
+ }
+}
+
+static void urb_ctl_callback(struct urb *urb)
+{
+ struct yealink_dev *yld = urb->context;
+ int ret = 0, status = urb->status;
+
+ if (status)
+ dev_err(&yld->intf->dev, "%s - urb status %d\n",
+ __func__, status);
+
+ switch (yld->ctl_data->cmd) {
+ case CMD_KEYPRESS:
+ case CMD_SCANCODE:
+ /* ask for a response */
+ if (!yld->shutdown)
+ ret = usb_submit_urb(yld->urb_irq, GFP_ATOMIC);
+ break;
+ default:
+ /* send new command */
+ yealink_do_idle_tasks(yld);
+ if (!yld->shutdown)
+ ret = usb_submit_urb(yld->urb_ctl, GFP_ATOMIC);
+ break;
+ }
+
+ if (ret && ret != -EPERM)
+ dev_err(&yld->intf->dev, "%s - usb_submit_urb failed %d\n",
+ __func__, ret);
+}
+
+/*******************************************************************************
+ * input event interface
+ ******************************************************************************/
+
+/* TODO should we issue a ringtone on a SND_BELL event?
+static int input_ev(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+
+ if (type != EV_SND)
+ return -EINVAL;
+
+ switch (code) {
+ case SND_BELL:
+ case SND_TONE:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+*/
+
+static int input_open(struct input_dev *dev)
+{
+ struct yealink_dev *yld = input_get_drvdata(dev);
+ int i, ret;
+
+ dev_dbg(&yld->intf->dev, "%s\n", __func__);
+
+ /* force updates to device */
+ for (i = 0; i<sizeof(yld->master); i++)
+ yld->copy.b[i] = ~yld->master.b[i];
+ yld->key_code = -1; /* no keys pressed */
+
+ yealink_set_ringtone(yld, default_ringtone, sizeof(default_ringtone));
+
+ /* issue INIT */
+ memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
+ yld->ctl_data->cmd = CMD_INIT;
+ yld->ctl_data->size = 10;
+ yld->ctl_data->sum = 0x100-CMD_INIT-10;
+ if ((ret = usb_submit_urb(yld->urb_ctl, GFP_KERNEL)) != 0) {
+ dev_dbg(&yld->intf->dev,
+ "%s - usb_submit_urb failed with result %d\n",
+ __func__, ret);
+ return ret;
+ }
+ return 0;
+}
+
+static void input_close(struct input_dev *dev)
+{
+ struct yealink_dev *yld = input_get_drvdata(dev);
+
+ yld->shutdown = 1;
+ /*
+ * Make sure the flag is seen by other CPUs before we start
+ * killing URBs so new URBs won't be submitted
+ */
+ smp_wmb();
+
+ usb_kill_urb(yld->urb_ctl);
+ usb_kill_urb(yld->urb_irq);
+
+ yld->shutdown = 0;
+ smp_wmb();
+}
+
+/*******************************************************************************
+ * sysfs interface
+ ******************************************************************************/
+
+static DECLARE_RWSEM(sysfs_rwsema);
+
+/* Interface to the 7-segments translation table aka. char set.
+ */
+static ssize_t show_map(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ memcpy(buf, &map_seg7, sizeof(map_seg7));
+ return sizeof(map_seg7);
+}
+
+static ssize_t store_map(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t cnt)
+{
+ if (cnt != sizeof(map_seg7))
+ return -EINVAL;
+ memcpy(&map_seg7, buf, sizeof(map_seg7));
+ return sizeof(map_seg7);
+}
+
+/* Interface to the LCD.
+ */
+
+/* Reading /sys/../lineX will return the format string with its settings:
+ *
+ * Example:
+ * cat ./line3
+ * 888888888888
+ * Linux Rocks!
+ */
+static ssize_t show_line(struct device *dev, char *buf, int a, int b)
+{
+ struct yealink_dev *yld;
+ int i;
+
+ down_read(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_read(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ for (i = a; i < b; i++)
+ *buf++ = lcdMap[i].type;
+ *buf++ = '\n';
+ for (i = a; i < b; i++)
+ *buf++ = yld->lcdMap[i];
+ *buf++ = '\n';
+ *buf = 0;
+
+ up_read(&sysfs_rwsema);
+ return 3 + ((b - a) << 1);
+}
+
+static ssize_t show_line1(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return show_line(dev, buf, LCD_LINE1_OFFSET, LCD_LINE2_OFFSET);
+}
+
+static ssize_t show_line2(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return show_line(dev, buf, LCD_LINE2_OFFSET, LCD_LINE3_OFFSET);
+}
+
+static ssize_t show_line3(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return show_line(dev, buf, LCD_LINE3_OFFSET, LCD_LINE4_OFFSET);
+}
+
+/* Writing to /sys/../lineX will set the coresponding LCD line.
+ * - Excess characters are ignored.
+ * - If less characters are written than allowed, the remaining digits are
+ * unchanged.
+ * - The '\n' or '\t' char is a placeholder, it does not overwrite the
+ * original content.
+ */
+static ssize_t store_line(struct device *dev, const char *buf, size_t count,
+ int el, size_t len)
+{
+ struct yealink_dev *yld;
+ int i;
+
+ down_write(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_write(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ if (len > count)
+ len = count;
+ for (i = 0; i < len; i++)
+ setChar(yld, el++, buf[i]);
+
+ up_write(&sysfs_rwsema);
+ return count;
+}
+
+static ssize_t store_line1(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return store_line(dev, buf, count, LCD_LINE1_OFFSET, LCD_LINE1_SIZE);
+}
+
+static ssize_t store_line2(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return store_line(dev, buf, count, LCD_LINE2_OFFSET, LCD_LINE2_SIZE);
+}
+
+static ssize_t store_line3(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return store_line(dev, buf, count, LCD_LINE3_OFFSET, LCD_LINE3_SIZE);
+}
+
+/* Interface to visible and audible "icons", these include:
+ * pictures on the LCD, the LED, and the dialtone signal.
+ */
+
+/* Get a list of "switchable elements" with their current state. */
+static ssize_t get_icons(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct yealink_dev *yld;
+ int i, ret = 1;
+
+ down_read(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_read(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(lcdMap); i++) {
+ if (lcdMap[i].type != '.')
+ continue;
+ ret += sprintf(&buf[ret], "%s %s\n",
+ yld->lcdMap[i] == ' ' ? " " : "on",
+ lcdMap[i].u.p.name);
+ }
+ up_read(&sysfs_rwsema);
+ return ret;
+}
+
+/* Change the visibility of a particular element. */
+static ssize_t set_icon(struct device *dev, const char *buf, size_t count,
+ int chr)
+{
+ struct yealink_dev *yld;
+ int i;
+
+ down_write(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_write(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(lcdMap); i++) {
+ if (lcdMap[i].type != '.')
+ continue;
+ if (strncmp(buf, lcdMap[i].u.p.name, count) == 0) {
+ setChar(yld, i, chr);
+ break;
+ }
+ }
+
+ up_write(&sysfs_rwsema);
+ return count;
+}
+
+static ssize_t show_icon(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return set_icon(dev, buf, count, buf[0]);
+}
+
+static ssize_t hide_icon(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return set_icon(dev, buf, count, ' ');
+}
+
+/* Upload a ringtone to the device.
+ */
+
+/* Stores raw ringtone data in the phone */
+static ssize_t store_ringtone(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct yealink_dev *yld;
+
+ down_write(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_write(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ /* TODO locking with async usb control interface??? */
+ yealink_set_ringtone(yld, (char *)buf, count);
+ up_write(&sysfs_rwsema);
+ return count;
+}
+
+#define _M444 S_IRUGO
+#define _M664 S_IRUGO|S_IWUSR|S_IWGRP
+#define _M220 S_IWUSR|S_IWGRP
+
+static DEVICE_ATTR(map_seg7 , _M664, show_map , store_map );
+static DEVICE_ATTR(line1 , _M664, show_line1 , store_line1 );
+static DEVICE_ATTR(line2 , _M664, show_line2 , store_line2 );
+static DEVICE_ATTR(line3 , _M664, show_line3 , store_line3 );
+static DEVICE_ATTR(get_icons , _M444, get_icons , NULL );
+static DEVICE_ATTR(show_icon , _M220, NULL , show_icon );
+static DEVICE_ATTR(hide_icon , _M220, NULL , hide_icon );
+static DEVICE_ATTR(ringtone , _M220, NULL , store_ringtone);
+
+static struct attribute *yld_attributes[] = {
+ &dev_attr_line1.attr,
+ &dev_attr_line2.attr,
+ &dev_attr_line3.attr,
+ &dev_attr_get_icons.attr,
+ &dev_attr_show_icon.attr,
+ &dev_attr_hide_icon.attr,
+ &dev_attr_map_seg7.attr,
+ &dev_attr_ringtone.attr,
+ NULL
+};
+
+static struct attribute_group yld_attr_group = {
+ .attrs = yld_attributes
+};
+
+/*******************************************************************************
+ * Linux interface and usb initialisation
+ ******************************************************************************/
+
+struct driver_info {
+ char *name;
+};
+
+static const struct driver_info info_P1K = {
+ .name = "Yealink usb-p1k",
+};
+
+static const struct usb_device_id usb_table [] = {
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
+ USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x6993,
+ .idProduct = 0xb001,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 0,
+ .bInterfaceProtocol = 0,
+ .driver_info = (kernel_ulong_t)&info_P1K
+ },
+ { }
+};
+
+static int usb_cleanup(struct yealink_dev *yld, int err)
+{
+ if (yld == NULL)
+ return err;
+
+ if (yld->idev) {
+ if (err)
+ input_free_device(yld->idev);
+ else
+ input_unregister_device(yld->idev);
+ }
+
+ usb_free_urb(yld->urb_irq);
+ usb_free_urb(yld->urb_ctl);
+
+ kfree(yld->ctl_req);
+ usb_free_coherent(yld->udev, USB_PKT_LEN, yld->ctl_data, yld->ctl_dma);
+ usb_free_coherent(yld->udev, USB_PKT_LEN, yld->irq_data, yld->irq_dma);
+
+ kfree(yld);
+ return err;
+}
+
+static void usb_disconnect(struct usb_interface *intf)
+{
+ struct yealink_dev *yld;
+
+ down_write(&sysfs_rwsema);
+ yld = usb_get_intfdata(intf);
+ sysfs_remove_group(&intf->dev.kobj, &yld_attr_group);
+ usb_set_intfdata(intf, NULL);
+ up_write(&sysfs_rwsema);
+
+ usb_cleanup(yld, 0);
+}
+
+static int usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev (intf);
+ struct driver_info *nfo = (struct driver_info *)id->driver_info;
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *endpoint;
+ struct yealink_dev *yld;
+ struct input_dev *input_dev;
+ int ret, pipe, i;
+
+ interface = intf->cur_altsetting;
+ endpoint = &interface->endpoint[0].desc;
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -ENODEV;
+
+ yld = kzalloc(sizeof(struct yealink_dev), GFP_KERNEL);
+ if (!yld)
+ return -ENOMEM;
+
+ yld->udev = udev;
+ yld->intf = intf;
+
+ yld->idev = input_dev = input_allocate_device();
+ if (!input_dev)
+ return usb_cleanup(yld, -ENOMEM);
+
+ /* allocate usb buffers */
+ yld->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_ATOMIC, &yld->irq_dma);
+ if (yld->irq_data == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ yld->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_ATOMIC, &yld->ctl_dma);
+ if (!yld->ctl_data)
+ return usb_cleanup(yld, -ENOMEM);
+
+ yld->ctl_req = kmalloc(sizeof(*(yld->ctl_req)), GFP_KERNEL);
+ if (yld->ctl_req == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ /* allocate urb structures */
+ yld->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (yld->urb_irq == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ yld->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
+ if (yld->urb_ctl == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ /* get a handle to the interrupt data pipe */
+ pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+ ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ if (ret != USB_PKT_LEN)
+ dev_err(&intf->dev, "invalid payload size %d, expected %zd\n",
+ ret, USB_PKT_LEN);
+
+ /* initialise irq urb */
+ usb_fill_int_urb(yld->urb_irq, udev, pipe, yld->irq_data,
+ USB_PKT_LEN,
+ urb_irq_callback,
+ yld, endpoint->bInterval);
+ yld->urb_irq->transfer_dma = yld->irq_dma;
+ yld->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ yld->urb_irq->dev = udev;
+
+ /* initialise ctl urb */
+ yld->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+ USB_DIR_OUT;
+ yld->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
+ yld->ctl_req->wValue = cpu_to_le16(0x200);
+ yld->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
+ yld->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
+
+ usb_fill_control_urb(yld->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
+ (void *)yld->ctl_req, yld->ctl_data, USB_PKT_LEN,
+ urb_ctl_callback, yld);
+ yld->urb_ctl->transfer_dma = yld->ctl_dma;
+ yld->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ yld->urb_ctl->dev = udev;
+
+ /* find out the physical bus location */
+ usb_make_path(udev, yld->phys, sizeof(yld->phys));
+ strlcat(yld->phys, "/input0", sizeof(yld->phys));
+
+ /* register settings for the input device */
+ input_dev->name = nfo->name;
+ input_dev->phys = yld->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, yld);
+
+ input_dev->open = input_open;
+ input_dev->close = input_close;
+ /* input_dev->event = input_ev; TODO */
+
+ /* register available key events */
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ for (i = 0; i < 256; i++) {
+ int k = map_p1k_to_key(i);
+ if (k >= 0) {
+ set_bit(k & 0xff, input_dev->keybit);
+ if (k >> 8)
+ set_bit(k >> 8, input_dev->keybit);
+ }
+ }
+
+ ret = input_register_device(yld->idev);
+ if (ret)
+ return usb_cleanup(yld, ret);
+
+ usb_set_intfdata(intf, yld);
+
+ /* clear visible elements */
+ for (i = 0; i < ARRAY_SIZE(lcdMap); i++)
+ setChar(yld, i, ' ');
+
+ /* display driver version on LCD line 3 */
+ store_line3(&intf->dev, NULL,
+ DRIVER_VERSION, sizeof(DRIVER_VERSION));
+
+ /* Register sysfs hooks (don't care about failure) */
+ ret = sysfs_create_group(&intf->dev.kobj, &yld_attr_group);
+ return 0;
+}
+
+static struct usb_driver yealink_driver = {
+ .name = "yealink",
+ .probe = usb_probe,
+ .disconnect = usb_disconnect,
+ .id_table = usb_table,
+};
+
+module_usb_driver(yealink_driver);
+
+MODULE_DEVICE_TABLE (usb, usb_table);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/input/misc/yealink.h b/kernel/drivers/input/misc/yealink.h
new file mode 100644
index 000000000..1e0f52397
--- /dev/null
+++ b/kernel/drivers/input/misc/yealink.h
@@ -0,0 +1,220 @@
+/*
+ * drivers/usb/input/yealink.h
+ *
+ * Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef INPUT_YEALINK_H
+#define INPUT_YEALINK_H
+
+/* Using the control channel on interface 3 various aspects of the phone
+ * can be controlled like LCD, LED, dialtone and the ringtone.
+ */
+
+struct yld_ctl_packet {
+ u8 cmd; /* command code, see below */
+ u8 size; /* 1-11, size of used data bytes. */
+ u16 offset; /* internal packet offset */
+ u8 data[11];
+ s8 sum; /* negative sum of 15 preceding bytes */
+} __attribute__ ((packed));
+
+#define USB_PKT_LEN sizeof(struct yld_ctl_packet)
+
+/* The following yld_ctl_packet's are available: */
+
+/* Init registers
+ *
+ * cmd 0x8e
+ * size 10
+ * offset 0
+ * data 0,0,0,0....
+ */
+#define CMD_INIT 0x8e
+
+/* Request key scan
+ *
+ * cmd 0x80
+ * size 1
+ * offset 0
+ * data[0] on return returns the key number, if it changes there's a new
+ * key pressed.
+ */
+#define CMD_KEYPRESS 0x80
+
+/* Request scancode
+ *
+ * cmd 0x81
+ * size 1
+ * offset key number [0-1f]
+ * data[0] on return returns the scancode
+ */
+#define CMD_SCANCODE 0x81
+
+/* Set LCD
+ *
+ * cmd 0x04
+ * size 1-11
+ * offset 0-23
+ * data segment bits
+ */
+#define CMD_LCD 0x04
+
+/* Set led
+ *
+ * cmd 0x05
+ * size 1
+ * offset 0
+ * data[0] 0 OFF / 1 ON
+ */
+#define CMD_LED 0x05
+
+/* Set ringtone volume
+ *
+ * cmd 0x11
+ * size 1
+ * offset 0
+ * data[0] 0-0xff volume
+ */
+#define CMD_RING_VOLUME 0x11
+
+/* Set ringtone notes
+ *
+ * cmd 0x02
+ * size 1-11
+ * offset 0->
+ * data binary representation LE16(-freq), LE16(duration) ....
+ */
+#define CMD_RING_NOTE 0x02
+
+/* Sound ringtone via the speaker on the back
+ *
+ * cmd 0x03
+ * size 1
+ * offset 0
+ * data[0] 0 OFF / 0x24 ON
+ */
+#define CMD_RINGTONE 0x03
+
+/* Sound dial tone via the ear speaker
+ *
+ * cmd 0x09
+ * size 1
+ * offset 0
+ * data[0] 0 OFF / 1 ON
+ */
+#define CMD_DIALTONE 0x09
+
+#endif /* INPUT_YEALINK_H */
+
+
+#if defined(_SEG) && defined(_PIC)
+/* This table maps the LCD segments onto individual bit positions in the
+ * yld_status struct.
+ */
+
+/* LCD, each segment must be driven separately.
+ *
+ * Layout:
+ *
+ * |[] [][] [][] [][] in |[][]
+ * |[] M [][] D [][] : [][] out |[][]
+ * store
+ *
+ * NEW REP SU MO TU WE TH FR SA
+ *
+ * [] [] [] [] [] [] [] [] [] [] [] []
+ * [] [] [] [] [] [] [] [] [] [] [] []
+ */
+
+/* Line 1
+ * Format : 18.e8.M8.88...188
+ * Icon names : M D : IN OUT STORE
+ */
+#define LCD_LINE1_OFFSET 0
+#define LCD_LINE1_SIZE 17
+
+/* Note: first g then f => ! ! */
+/* _SEG( type a b c d e g f ) */
+ _SEG('1', 0,0 , 22,2 , 22,2 , 0,0 , 0,0 , 0,0 , 0,0 ),
+ _SEG('8', 20,1 , 20,2 , 20,4 , 20,8 , 21,4 , 21,2 , 21,1 ),
+ _PIC('.', 22,1 , "M" ),
+ _SEG('e', 18,1 , 18,2 , 18,4 , 18,1 , 19,2 , 18,1 , 19,1 ),
+ _SEG('8', 16,1 , 16,2 , 16,4 , 16,8 , 17,4 , 17,2 , 17,1 ),
+ _PIC('.', 15,8 , "D" ),
+ _SEG('M', 14,1 , 14,2 , 14,4 , 14,1 , 15,4 , 15,2 , 15,1 ),
+ _SEG('8', 12,1 , 12,2 , 12,4 , 12,8 , 13,4 , 13,2 , 13,1 ),
+ _PIC('.', 11,8 , ":" ),
+ _SEG('8', 10,1 , 10,2 , 10,4 , 10,8 , 11,4 , 11,2 , 11,1 ),
+ _SEG('8', 8,1 , 8,2 , 8,4 , 8,8 , 9,4 , 9,2 , 9,1 ),
+ _PIC('.', 7,1 , "IN" ),
+ _PIC('.', 7,2 , "OUT" ),
+ _PIC('.', 7,4 , "STORE" ),
+ _SEG('1', 0,0 , 5,1 , 5,1 , 0,0 , 0,0 , 0,0 , 0,0 ),
+ _SEG('8', 4,1 , 4,2 , 4,4 , 4,8 , 5,8 , 5,4 , 5,2 ),
+ _SEG('8', 2,1 , 2,2 , 2,4 , 2,8 , 3,4 , 3,2 , 3,1 ),
+
+/* Line 2
+ * Format : .........
+ * Pict. name : NEW REP SU MO TU WE TH FR SA
+ */
+#define LCD_LINE2_OFFSET LCD_LINE1_OFFSET + LCD_LINE1_SIZE
+#define LCD_LINE2_SIZE 9
+
+ _PIC('.', 23,2 , "NEW" ),
+ _PIC('.', 23,4 , "REP" ),
+ _PIC('.', 1,8 , "SU" ),
+ _PIC('.', 1,4 , "MO" ),
+ _PIC('.', 1,2 , "TU" ),
+ _PIC('.', 1,1 , "WE" ),
+ _PIC('.', 0,1 , "TH" ),
+ _PIC('.', 0,2 , "FR" ),
+ _PIC('.', 0,4 , "SA" ),
+
+/* Line 3
+ * Format : 888888888888
+ */
+#define LCD_LINE3_OFFSET LCD_LINE2_OFFSET + LCD_LINE2_SIZE
+#define LCD_LINE3_SIZE 12
+
+ _SEG('8', 22,16, 22,32, 22,64, 22,128, 23,128, 23,64, 23,32 ),
+ _SEG('8', 20,16, 20,32, 20,64, 20,128, 21,128, 21,64, 21,32 ),
+ _SEG('8', 18,16, 18,32, 18,64, 18,128, 19,128, 19,64, 19,32 ),
+ _SEG('8', 16,16, 16,32, 16,64, 16,128, 17,128, 17,64, 17,32 ),
+ _SEG('8', 14,16, 14,32, 14,64, 14,128, 15,128, 15,64, 15,32 ),
+ _SEG('8', 12,16, 12,32, 12,64, 12,128, 13,128, 13,64, 13,32 ),
+ _SEG('8', 10,16, 10,32, 10,64, 10,128, 11,128, 11,64, 11,32 ),
+ _SEG('8', 8,16, 8,32, 8,64, 8,128, 9,128, 9,64, 9,32 ),
+ _SEG('8', 6,16, 6,32, 6,64, 6,128, 7,128, 7,64, 7,32 ),
+ _SEG('8', 4,16, 4,32, 4,64, 4,128, 5,128, 5,64, 5,32 ),
+ _SEG('8', 2,16, 2,32, 2,64, 2,128, 3,128, 3,64, 3,32 ),
+ _SEG('8', 0,16, 0,32, 0,64, 0,128, 1,128, 1,64, 1,32 ),
+
+/* Line 4
+ *
+ * The LED, DIALTONE and RINGTONE are implemented as icons and use the same
+ * sysfs interface.
+ */
+#define LCD_LINE4_OFFSET LCD_LINE3_OFFSET + LCD_LINE3_SIZE
+
+ _PIC('.', offsetof(struct yld_status, led) , 0x01, "LED" ),
+ _PIC('.', offsetof(struct yld_status, dialtone) , 0x01, "DIALTONE" ),
+ _PIC('.', offsetof(struct yld_status, ringtone) , 0x24, "RINGTONE" ),
+
+#undef _SEG
+#undef _PIC
+#endif /* _SEG && _PIC */