diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/input/keyboard/jornada720_kbd.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (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/keyboard/jornada720_kbd.c')
-rw-r--r-- | kernel/drivers/input/keyboard/jornada720_kbd.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/kernel/drivers/input/keyboard/jornada720_kbd.c b/kernel/drivers/input/keyboard/jornada720_kbd.c new file mode 100644 index 000000000..421d9c55b --- /dev/null +++ b/kernel/drivers/input/keyboard/jornada720_kbd.c @@ -0,0 +1,174 @@ +/* + * drivers/input/keyboard/jornada720_kbd.c + * + * HP Jornada 720 keyboard platform driver + * + * Copyright (C) 2006/2007 Kristoffer Ericson <Kristoffer.Ericson@Gmail.com> + * + * Copyright (C) 2006 jornada 720 kbd driver by + Filip Zyzniewsk <Filip.Zyzniewski@tefnet.plX + * based on (C) 2004 jornada 720 kbd driver by + Alex Lange <chicken@handhelds.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/device.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> + +#include <mach/jornada720.h> +#include <mach/hardware.h> +#include <mach/irqs.h> + +MODULE_AUTHOR("Kristoffer Ericson <Kristoffer.Ericson@gmail.com>"); +MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver"); +MODULE_LICENSE("GPL v2"); + +static unsigned short jornada_std_keymap[128] = { /* ROW */ + 0, KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, /* #1 */ + KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, /* -> */ + 0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, /* #2 */ + KEY_0, KEY_MINUS, KEY_EQUAL,0, 0, 0, /* -> */ + 0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O, /* #3 */ + KEY_P, KEY_BACKSLASH, KEY_BACKSPACE, 0, 0, 0, /* -> */ + 0, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_J, KEY_K, KEY_L, /* #4 */ + KEY_SEMICOLON, KEY_LEFTBRACE, KEY_RIGHTBRACE, 0, 0, 0, /* -> */ + 0, KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B, KEY_N, KEY_M, KEY_COMMA, /* #5 */ + KEY_DOT, KEY_KPMINUS, KEY_APOSTROPHE, KEY_ENTER, 0, 0,0, /* -> */ + 0, KEY_TAB, 0, KEY_LEFTSHIFT, 0, KEY_APOSTROPHE, 0, 0, 0, 0, /* #6 */ + KEY_UP, 0, KEY_RIGHTSHIFT, 0, 0, 0,0, 0, 0, 0, 0, KEY_LEFTALT, KEY_GRAVE, /* -> */ + 0, 0, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0,0, KEY_KPASTERISK, /* -> */ + KEY_LEFTCTRL, 0, KEY_SPACE, 0, 0, 0, KEY_SLASH, KEY_DELETE, 0, 0, /* -> */ + 0, 0, 0, KEY_POWER, /* -> */ +}; + +struct jornadakbd { + unsigned short keymap[ARRAY_SIZE(jornada_std_keymap)]; + struct input_dev *input; +}; + +static irqreturn_t jornada720_kbd_interrupt(int irq, void *dev_id) +{ + struct platform_device *pdev = dev_id; + struct jornadakbd *jornadakbd = platform_get_drvdata(pdev); + struct input_dev *input = jornadakbd->input; + u8 count, kbd_data, scan_code; + + /* startup ssp with spinlock */ + jornada_ssp_start(); + + if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) { + printk(KERN_DEBUG + "jornada720_kbd: " + "GetKeycode command failed with ETIMEDOUT, " + "flushed bus\n"); + } else { + /* How many keycodes are waiting for us? */ + count = jornada_ssp_byte(TXDUMMY); + + /* Lets drag them out one at a time */ + while (count--) { + /* Exchange TxDummy for location (keymap[kbddata]) */ + kbd_data = jornada_ssp_byte(TXDUMMY); + scan_code = kbd_data & 0x7f; + + input_event(input, EV_MSC, MSC_SCAN, scan_code); + input_report_key(input, jornadakbd->keymap[scan_code], + !(kbd_data & 0x80)); + input_sync(input); + } + } + + /* release spinlock and turn off ssp */ + jornada_ssp_end(); + + return IRQ_HANDLED; +}; + +static int jornada720_kbd_probe(struct platform_device *pdev) +{ + struct jornadakbd *jornadakbd; + struct input_dev *input_dev; + int i, err; + + jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!jornadakbd || !input_dev) { + err = -ENOMEM; + goto fail1; + } + + platform_set_drvdata(pdev, jornadakbd); + + memcpy(jornadakbd->keymap, jornada_std_keymap, + sizeof(jornada_std_keymap)); + jornadakbd->input = input_dev; + + input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); + input_dev->name = "HP Jornada 720 keyboard"; + input_dev->phys = "jornadakbd/input0"; + input_dev->keycode = jornadakbd->keymap; + input_dev->keycodesize = sizeof(unsigned short); + input_dev->keycodemax = ARRAY_SIZE(jornada_std_keymap); + input_dev->id.bustype = BUS_HOST; + input_dev->dev.parent = &pdev->dev; + + for (i = 0; i < ARRAY_SIZE(jornadakbd->keymap); i++) + __set_bit(jornadakbd->keymap[i], input_dev->keybit); + __clear_bit(KEY_RESERVED, input_dev->keybit); + + input_set_capability(input_dev, EV_MSC, MSC_SCAN); + + err = request_irq(IRQ_GPIO0, + jornada720_kbd_interrupt, + IRQF_TRIGGER_FALLING, + "jornadakbd", pdev); + if (err) { + printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n"); + goto fail1; + } + + err = input_register_device(jornadakbd->input); + if (err) + goto fail2; + + return 0; + + fail2: /* IRQ, DEVICE, MEMORY */ + free_irq(IRQ_GPIO0, pdev); + fail1: /* DEVICE, MEMORY */ + input_free_device(input_dev); + kfree(jornadakbd); + return err; +}; + +static int jornada720_kbd_remove(struct platform_device *pdev) +{ + struct jornadakbd *jornadakbd = platform_get_drvdata(pdev); + + free_irq(IRQ_GPIO0, pdev); + input_unregister_device(jornadakbd->input); + kfree(jornadakbd); + + return 0; +} + +/* work with hotplug and coldplug */ +MODULE_ALIAS("platform:jornada720_kbd"); + +static struct platform_driver jornada720_kbd_driver = { + .driver = { + .name = "jornada720_kbd", + }, + .probe = jornada720_kbd_probe, + .remove = jornada720_kbd_remove, +}; +module_platform_driver(jornada720_kbd_driver); |