diff options
Diffstat (limited to 'kernel/drivers/media/rc/ati_remote.c')
| -rw-r--r-- | kernel/drivers/media/rc/ati_remote.c | 982 |
1 files changed, 982 insertions, 0 deletions
diff --git a/kernel/drivers/media/rc/ati_remote.c b/kernel/drivers/media/rc/ati_remote.c new file mode 100644 index 000000000..a35631891 --- /dev/null +++ b/kernel/drivers/media/rc/ati_remote.c @@ -0,0 +1,982 @@ +/* + * USB ATI Remote support + * + * Copyright (c) 2011, 2012 Anssi Hannula <anssi.hannula@iki.fi> + * Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net> + * Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev + * + * This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including + * porting to the 2.6 kernel interfaces, along with other modification + * to better match the style of the existing usb/input drivers. However, the + * protocol and hardware handling is essentially unchanged from 2.1.1. + * + * The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by + * Vojtech Pavlik. + * + * Changes: + * + * Feb 2004: Torrey Hoffman <thoffman@arnor.net> + * Version 2.2.0 + * Jun 2004: Torrey Hoffman <thoffman@arnor.net> + * Version 2.2.1 + * Added key repeat support contributed by: + * Vincent Vanackere <vanackere@lif.univ-mrs.fr> + * Added support for the "Lola" remote contributed by: + * Seth Cohn <sethcohn@yahoo.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 + * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * + * Hardware & software notes + * + * These remote controls are distributed by ATI as part of their + * "All-In-Wonder" video card packages. The receiver self-identifies as a + * "USB Receiver" with manufacturer "X10 Wireless Technology Inc". + * + * The "Lola" remote is available from X10. See: + * http://www.x10.com/products/lola_sg1.htm + * The Lola is similar to the ATI remote but has no mouse support, and slightly + * different keys. + * + * It is possible to use multiple receivers and remotes on multiple computers + * simultaneously by configuring them to use specific channels. + * + * The RF protocol used by the remote supports 16 distinct channels, 1 to 16. + * Actually, it may even support more, at least in some revisions of the + * hardware. + * + * Each remote can be configured to transmit on one channel as follows: + * - Press and hold the "hand icon" button. + * - When the red LED starts to blink, let go of the "hand icon" button. + * - When it stops blinking, input the channel code as two digits, from 01 + * to 16, and press the hand icon again. + * + * The timing can be a little tricky. Try loading the module with debug=1 + * to have the kernel print out messages about the remote control number + * and mask. Note: debugging prints remote numbers as zero-based hexadecimal. + * + * The driver has a "channel_mask" parameter. This bitmask specifies which + * channels will be ignored by the module. To mask out channels, just add + * all the 2^channel_number values together. + * + * For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote + * ignore signals coming from remote controls transmitting on channel 4, but + * accept all other channels. + * + * Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be + * ignored. + * + * The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this + * parameter are unused. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/usb/input.h> +#include <linux/wait.h> +#include <linux/jiffies.h> +#include <media/rc-core.h> + +/* + * Module and Version Information, Module Parameters + */ + +#define ATI_REMOTE_VENDOR_ID 0x0bc7 +#define LOLA_REMOTE_PRODUCT_ID 0x0002 +#define LOLA2_REMOTE_PRODUCT_ID 0x0003 +#define ATI_REMOTE_PRODUCT_ID 0x0004 +#define NVIDIA_REMOTE_PRODUCT_ID 0x0005 +#define MEDION_REMOTE_PRODUCT_ID 0x0006 +#define FIREFLY_REMOTE_PRODUCT_ID 0x0008 + +#define DRIVER_VERSION "2.2.1" +#define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>" +#define DRIVER_DESC "ATI/X10 RF USB Remote Control" + +#define NAME_BUFSIZE 80 /* size of product name, path buffers */ +#define DATA_BUFSIZE 63 /* size of URB data buffers */ + +/* + * Duplicate event filtering time. + * Sequential, identical KIND_FILTERED inputs with less than + * FILTER_TIME milliseconds between them are considered as repeat + * events. The hardware generates 5 events for the first keypress + * and we have to take this into account for an accurate repeat + * behaviour. + */ +#define FILTER_TIME 60 /* msec */ +#define REPEAT_DELAY 500 /* msec */ + +static unsigned long channel_mask; +module_param(channel_mask, ulong, 0644); +MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore"); + +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Enable extra debug messages and information"); + +static int repeat_filter = FILTER_TIME; +module_param(repeat_filter, int, 0644); +MODULE_PARM_DESC(repeat_filter, "Repeat filter time, default = 60 msec"); + +static int repeat_delay = REPEAT_DELAY; +module_param(repeat_delay, int, 0644); +MODULE_PARM_DESC(repeat_delay, "Delay before sending repeats, default = 500 msec"); + +static bool mouse = true; +module_param(mouse, bool, 0444); +MODULE_PARM_DESC(mouse, "Enable mouse device, default = yes"); + +#define dbginfo(dev, format, arg...) \ + do { if (debug) dev_info(dev , format , ## arg); } while (0) +#undef err +#define err(format, arg...) printk(KERN_ERR format , ## arg) + +struct ati_receiver_type { + /* either default_keymap or get_default_keymap should be set */ + const char *default_keymap; + const char *(*get_default_keymap)(struct usb_interface *interface); +}; + +static const char *get_medion_keymap(struct usb_interface *interface) +{ + struct usb_device *udev = interface_to_usbdev(interface); + + /* + * There are many different Medion remotes shipped with a receiver + * with the same usb id, but the receivers have subtle differences + * in the USB descriptors allowing us to detect them. + */ + + if (udev->manufacturer && udev->product) { + if (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP) { + + if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc") + && !strcmp(udev->product, "USB Receiver")) + return RC_MAP_MEDION_X10_DIGITAINER; + + if (!strcmp(udev->manufacturer, "X10 WTI") + && !strcmp(udev->product, "RF receiver")) + return RC_MAP_MEDION_X10_OR2X; + } else { + + if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc") + && !strcmp(udev->product, "USB Receiver")) + return RC_MAP_MEDION_X10; + } + } + + dev_info(&interface->dev, + "Unknown Medion X10 receiver, using default ati_remote Medion keymap\n"); + + return RC_MAP_MEDION_X10; +} + +static const struct ati_receiver_type type_ati = { + .default_keymap = RC_MAP_ATI_X10 +}; +static const struct ati_receiver_type type_medion = { + .get_default_keymap = get_medion_keymap +}; +static const struct ati_receiver_type type_firefly = { + .default_keymap = RC_MAP_SNAPSTREAM_FIREFLY +}; + +static struct usb_device_id ati_remote_table[] = { + { + USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID), + .driver_info = (unsigned long)&type_ati + }, + { + USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA2_REMOTE_PRODUCT_ID), + .driver_info = (unsigned long)&type_ati + }, + { + USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID), + .driver_info = (unsigned long)&type_ati + }, + { + USB_DEVICE(ATI_REMOTE_VENDOR_ID, NVIDIA_REMOTE_PRODUCT_ID), + .driver_info = (unsigned long)&type_ati + }, + { + USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID), + .driver_info = (unsigned long)&type_medion + }, + { + USB_DEVICE(ATI_REMOTE_VENDOR_ID, FIREFLY_REMOTE_PRODUCT_ID), + .driver_info = (unsigned long)&type_firefly + }, + {} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, ati_remote_table); + +/* Get hi and low bytes of a 16-bits int */ +#define HI(a) ((unsigned char)((a) >> 8)) +#define LO(a) ((unsigned char)((a) & 0xff)) + +#define SEND_FLAG_IN_PROGRESS 1 +#define SEND_FLAG_COMPLETE 2 + +/* Device initialization strings */ +static char init1[] = { 0x01, 0x00, 0x20, 0x14 }; +static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 }; + +struct ati_remote { + struct input_dev *idev; + struct rc_dev *rdev; + struct usb_device *udev; + struct usb_interface *interface; + + struct urb *irq_urb; + struct urb *out_urb; + struct usb_endpoint_descriptor *endpoint_in; + struct usb_endpoint_descriptor *endpoint_out; + unsigned char *inbuf; + unsigned char *outbuf; + dma_addr_t inbuf_dma; + dma_addr_t outbuf_dma; + + unsigned char old_data; /* Detect duplicate events */ + unsigned long old_jiffies; + unsigned long acc_jiffies; /* handle acceleration */ + unsigned long first_jiffies; + + unsigned int repeat_count; + + char rc_name[NAME_BUFSIZE]; + char rc_phys[NAME_BUFSIZE]; + char mouse_name[NAME_BUFSIZE]; + char mouse_phys[NAME_BUFSIZE]; + + wait_queue_head_t wait; + int send_flags; + + int users; /* 0-2, users are rc and input */ + struct mutex open_mutex; +}; + +/* "Kinds" of messages sent from the hardware to the driver. */ +#define KIND_END 0 +#define KIND_LITERAL 1 /* Simply pass to input system as EV_KEY */ +#define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */ +#define KIND_ACCEL 3 /* Translate to EV_REL mouse-move events */ + +/* Translation table from hardware messages to input events. */ +static const struct { + unsigned char kind; + unsigned char data; /* Raw key code from remote */ + unsigned short code; /* Input layer translation */ +} ati_remote_tbl[] = { + /* Directional control pad axes. Code is xxyy */ + {KIND_ACCEL, 0x70, 0xff00}, /* left */ + {KIND_ACCEL, 0x71, 0x0100}, /* right */ + {KIND_ACCEL, 0x72, 0x00ff}, /* up */ + {KIND_ACCEL, 0x73, 0x0001}, /* down */ + + /* Directional control pad diagonals */ + {KIND_ACCEL, 0x74, 0xffff}, /* left up */ + {KIND_ACCEL, 0x75, 0x01ff}, /* right up */ + {KIND_ACCEL, 0x77, 0xff01}, /* left down */ + {KIND_ACCEL, 0x76, 0x0101}, /* right down */ + + /* "Mouse button" buttons. The code below uses the fact that the + * lsbit of the raw code is a down/up indicator. */ + {KIND_LITERAL, 0x78, BTN_LEFT}, /* left btn down */ + {KIND_LITERAL, 0x79, BTN_LEFT}, /* left btn up */ + {KIND_LITERAL, 0x7c, BTN_RIGHT},/* right btn down */ + {KIND_LITERAL, 0x7d, BTN_RIGHT},/* right btn up */ + + /* Artificial "doubleclick" events are generated by the hardware. + * They are mapped to the "side" and "extra" mouse buttons here. */ + {KIND_FILTERED, 0x7a, BTN_SIDE}, /* left dblclick */ + {KIND_FILTERED, 0x7e, BTN_EXTRA},/* right dblclick */ + + /* Non-mouse events are handled by rc-core */ + {KIND_END, 0x00, 0} +}; + +/* + * ati_remote_dump_input + */ +static void ati_remote_dump(struct device *dev, unsigned char *data, + unsigned int len) +{ + if (len == 1) { + if (data[0] != (unsigned char)0xff && data[0] != 0x00) + dev_warn(dev, "Weird byte 0x%02x\n", data[0]); + } else if (len == 4) + dev_warn(dev, "Weird key %*ph\n", 4, data); + else + dev_warn(dev, "Weird data, len=%d %*ph ...\n", len, 6, data); +} + +/* + * ati_remote_open + */ +static int ati_remote_open(struct ati_remote *ati_remote) +{ + int err = 0; + + mutex_lock(&ati_remote->open_mutex); + + if (ati_remote->users++ != 0) + goto out; /* one was already active */ + + /* On first open, submit the read urb which was set up previously. */ + ati_remote->irq_urb->dev = ati_remote->udev; + if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) { + dev_err(&ati_remote->interface->dev, + "%s: usb_submit_urb failed!\n", __func__); + err = -EIO; + } + +out: mutex_unlock(&ati_remote->open_mutex); + return err; +} + +/* + * ati_remote_close + */ +static void ati_remote_close(struct ati_remote *ati_remote) +{ + mutex_lock(&ati_remote->open_mutex); + if (--ati_remote->users == 0) + usb_kill_urb(ati_remote->irq_urb); + mutex_unlock(&ati_remote->open_mutex); +} + +static int ati_remote_input_open(struct input_dev *inputdev) +{ + struct ati_remote *ati_remote = input_get_drvdata(inputdev); + return ati_remote_open(ati_remote); +} + +static void ati_remote_input_close(struct input_dev *inputdev) +{ + struct ati_remote *ati_remote = input_get_drvdata(inputdev); + ati_remote_close(ati_remote); +} + +static int ati_remote_rc_open(struct rc_dev *rdev) +{ + struct ati_remote *ati_remote = rdev->priv; + return ati_remote_open(ati_remote); +} + +static void ati_remote_rc_close(struct rc_dev *rdev) +{ + struct ati_remote *ati_remote = rdev->priv; + ati_remote_close(ati_remote); +} + +/* + * ati_remote_irq_out + */ +static void ati_remote_irq_out(struct urb *urb) +{ + struct ati_remote *ati_remote = urb->context; + + if (urb->status) { + dev_dbg(&ati_remote->interface->dev, "%s: status %d\n", + __func__, urb->status); + return; + } + + ati_remote->send_flags |= SEND_FLAG_COMPLETE; + wmb(); + wake_up(&ati_remote->wait); +} + +/* + * ati_remote_sendpacket + * + * Used to send device initialization strings + */ +static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, + unsigned char *data) +{ + int retval = 0; + + /* Set up out_urb */ + memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd)); + ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd); + + ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1; + ati_remote->out_urb->dev = ati_remote->udev; + ati_remote->send_flags = SEND_FLAG_IN_PROGRESS; + + retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC); + if (retval) { + dev_dbg(&ati_remote->interface->dev, + "sendpacket: usb_submit_urb failed: %d\n", retval); + return retval; + } + + wait_event_timeout(ati_remote->wait, + ((ati_remote->out_urb->status != -EINPROGRESS) || + (ati_remote->send_flags & SEND_FLAG_COMPLETE)), + HZ); + usb_kill_urb(ati_remote->out_urb); + + return retval; +} + +/* + * ati_remote_compute_accel + * + * Implements acceleration curve for directional control pad + * If elapsed time since last event is > 1/4 second, user "stopped", + * so reset acceleration. Otherwise, user is probably holding the control + * pad down, so we increase acceleration, ramping up over two seconds to + * a maximum speed. + */ +static int ati_remote_compute_accel(struct ati_remote *ati_remote) +{ + static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 }; + unsigned long now = jiffies; + int acc; + + if (time_after(now, ati_remote->old_jiffies + msecs_to_jiffies(250))) { + acc = 1; + ati_remote->acc_jiffies = now; + } + else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(125))) + acc = accel[0]; + else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(250))) + acc = accel[1]; + else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(500))) + acc = accel[2]; + else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1000))) + acc = accel[3]; + else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1500))) + acc = accel[4]; + else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(2000))) + acc = accel[5]; + else + acc = accel[6]; + + return acc; +} + +/* + * ati_remote_report_input + */ +static void ati_remote_input_report(struct urb *urb) +{ + struct ati_remote *ati_remote = urb->context; + unsigned char *data= ati_remote->inbuf; + struct input_dev *dev = ati_remote->idev; + int index = -1; + int remote_num; + unsigned char scancode; + u32 wheel_keycode = KEY_RESERVED; + int i; + + /* + * data[0] = 0x14 + * data[1] = data[2] + data[3] + 0xd5 (a checksum byte) + * data[2] = the key code (with toggle bit in MSB with some models) + * data[3] = channel << 4 (the low 4 bits must be zero) + */ + + /* Deal with strange looking inputs */ + if ( urb->actual_length != 4 || data[0] != 0x14 || + data[1] != (unsigned char)(data[2] + data[3] + 0xD5) || + (data[3] & 0x0f) != 0x00) { + ati_remote_dump(&urb->dev->dev, data, urb->actual_length); + return; + } + + if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) { + dbginfo(&ati_remote->interface->dev, + "wrong checksum in input: %*ph\n", 4, data); + return; + } + + /* Mask unwanted remote channels. */ + /* note: remote_num is 0-based, channel 1 on remote == 0 here */ + remote_num = (data[3] >> 4) & 0x0f; + if (channel_mask & (1 << (remote_num + 1))) { + dbginfo(&ati_remote->interface->dev, + "Masked input from channel 0x%02x: data %02x, " + "mask= 0x%02lx\n", + remote_num, data[2], channel_mask); + return; + } + + /* + * MSB is a toggle code, though only used by some devices + * (e.g. SnapStream Firefly) + */ + scancode = data[2] & 0x7f; + + dbginfo(&ati_remote->interface->dev, + "channel 0x%02x; key data %02x, scancode %02x\n", + remote_num, data[2], scancode); + + if (scancode >= 0x70) { + /* + * This is either a mouse or scrollwheel event, depending on + * the remote/keymap. + * Get the keycode assigned to scancode 0x78/0x70. If it is + * set, assume this is a scrollwheel up/down event. + */ + wheel_keycode = rc_g_keycode_from_table(ati_remote->rdev, + scancode & 0x78); + + if (wheel_keycode == KEY_RESERVED) { + /* scrollwheel was not mapped, assume mouse */ + + /* Look up event code index in the mouse translation + * table. + */ + for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) { + if (scancode == ati_remote_tbl[i].data) { + index = i; + break; + } + } + } + } + + if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) { + /* + * The lsbit of the raw key code is a down/up flag. + * Invert it to match the input layer's conventions. + */ + input_event(dev, EV_KEY, ati_remote_tbl[index].code, + !(data[2] & 1)); + + ati_remote->old_jiffies = jiffies; + + } else if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) { + unsigned long now = jiffies; + + /* Filter duplicate events which happen "too close" together. */ + if (ati_remote->old_data == data[2] && + time_before(now, ati_remote->old_jiffies + + msecs_to_jiffies(repeat_filter))) { + ati_remote->repeat_count++; + } else { + ati_remote->repeat_count = 0; + ati_remote->first_jiffies = now; + } + + ati_remote->old_jiffies = now; + + /* Ensure we skip at least the 4 first duplicate events + * (generated by a single keypress), and continue skipping + * until repeat_delay msecs have passed. + */ + if (ati_remote->repeat_count > 0 && + (ati_remote->repeat_count < 5 || + time_before(now, ati_remote->first_jiffies + + msecs_to_jiffies(repeat_delay)))) + return; + + if (index >= 0) { + input_event(dev, EV_KEY, ati_remote_tbl[index].code, 1); + input_event(dev, EV_KEY, ati_remote_tbl[index].code, 0); + } else { + /* Not a mouse event, hand it to rc-core. */ + int count = 1; + + if (wheel_keycode != KEY_RESERVED) { + /* + * This is a scrollwheel event, send the + * scroll up (0x78) / down (0x70) scancode + * repeatedly as many times as indicated by + * rest of the scancode. + */ + count = (scancode & 0x07) + 1; + scancode &= 0x78; + } + + while (count--) { + /* + * We don't use the rc-core repeat handling yet as + * it would cause ghost repeats which would be a + * regression for this driver. + */ + rc_keydown_notimeout(ati_remote->rdev, RC_TYPE_OTHER, + scancode, data[2]); + rc_keyup(ati_remote->rdev); + } + goto nosync; + } + + } else if (ati_remote_tbl[index].kind == KIND_ACCEL) { + signed char dx = ati_remote_tbl[index].code >> 8; + signed char dy = ati_remote_tbl[index].code & 255; + + /* + * Other event kinds are from the directional control pad, and + * have an acceleration factor applied to them. Without this + * acceleration, the control pad is mostly unusable. + */ + int acc = ati_remote_compute_accel(ati_remote); + if (dx) + input_report_rel(dev, REL_X, dx * acc); + if (dy) + input_report_rel(dev, REL_Y, dy * acc); + ati_remote->old_jiffies = jiffies; + + } else { + dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n", + ati_remote_tbl[index].kind); + return; + } + input_sync(dev); +nosync: + ati_remote->old_data = data[2]; +} + +/* + * ati_remote_irq_in + */ +static void ati_remote_irq_in(struct urb *urb) +{ + struct ati_remote *ati_remote = urb->context; + int retval; + + switch (urb->status) { + case 0: /* success */ + ati_remote_input_report(urb); + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + dev_dbg(&ati_remote->interface->dev, + "%s: urb error status, unlink?\n", + __func__); + return; + default: /* error */ + dev_dbg(&ati_remote->interface->dev, + "%s: Nonzero urb status %d\n", + __func__, urb->status); + } + + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) + dev_err(&ati_remote->interface->dev, + "%s: usb_submit_urb()=%d\n", + __func__, retval); +} + +/* + * ati_remote_alloc_buffers + */ +static int ati_remote_alloc_buffers(struct usb_device *udev, + struct ati_remote *ati_remote) +{ + ati_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC, + &ati_remote->inbuf_dma); + if (!ati_remote->inbuf) + return -1; + + ati_remote->outbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC, + &ati_remote->outbuf_dma); + if (!ati_remote->outbuf) + return -1; + + ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!ati_remote->irq_urb) + return -1; + + ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!ati_remote->out_urb) + return -1; + + return 0; +} + +/* + * ati_remote_free_buffers + */ +static void ati_remote_free_buffers(struct ati_remote *ati_remote) +{ + usb_free_urb(ati_remote->irq_urb); + usb_free_urb(ati_remote->out_urb); + + usb_free_coherent(ati_remote->udev, DATA_BUFSIZE, + ati_remote->inbuf, ati_remote->inbuf_dma); + + usb_free_coherent(ati_remote->udev, DATA_BUFSIZE, + ati_remote->outbuf, ati_remote->outbuf_dma); +} + +static void ati_remote_input_init(struct ati_remote *ati_remote) +{ + struct input_dev *idev = ati_remote->idev; + int i; + + idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); + idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | + BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA); + idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); + for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) + if (ati_remote_tbl[i].kind == KIND_LITERAL || + ati_remote_tbl[i].kind == KIND_FILTERED) + __set_bit(ati_remote_tbl[i].code, idev->keybit); + + input_set_drvdata(idev, ati_remote); + + idev->open = ati_remote_input_open; + idev->close = ati_remote_input_close; + + idev->name = ati_remote->mouse_name; + idev->phys = ati_remote->mouse_phys; + + usb_to_input_id(ati_remote->udev, &idev->id); + idev->dev.parent = &ati_remote->interface->dev; +} + +static void ati_remote_rc_init(struct ati_remote *ati_remote) +{ + struct rc_dev *rdev = ati_remote->rdev; + + rdev->priv = ati_remote; + rdev->driver_type = RC_DRIVER_SCANCODE; + rdev->allowed_protocols = RC_BIT_OTHER; + rdev->driver_name = "ati_remote"; + + rdev->open = ati_remote_rc_open; + rdev->close = ati_remote_rc_close; + + rdev->input_name = ati_remote->rc_name; + rdev->input_phys = ati_remote->rc_phys; + + usb_to_input_id(ati_remote->udev, &rdev->input_id); + rdev->dev.parent = &ati_remote->interface->dev; +} + +static int ati_remote_initialize(struct ati_remote *ati_remote) +{ + struct usb_device *udev = ati_remote->udev; + int pipe, maxp; + + init_waitqueue_head(&ati_remote->wait); + + /* Set up irq_urb */ + pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress); + maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); + maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; + + usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf, + maxp, ati_remote_irq_in, ati_remote, + ati_remote->endpoint_in->bInterval); + ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma; + ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + /* Set up out_urb */ + pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress); + maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); + maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp; + + usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf, + maxp, ati_remote_irq_out, ati_remote, + ati_remote->endpoint_out->bInterval); + ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma; + ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + /* send initialization strings */ + if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) || + (ati_remote_sendpacket(ati_remote, 0x8007, init2))) { + dev_err(&ati_remote->interface->dev, + "Initializing ati_remote hardware failed.\n"); + return -EIO; + } + + return 0; +} + +/* + * ati_remote_probe + */ +static int ati_remote_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct usb_host_interface *iface_host = interface->cur_altsetting; + struct usb_endpoint_descriptor *endpoint_in, *endpoint_out; + struct ati_receiver_type *type = (struct ati_receiver_type *)id->driver_info; + struct ati_remote *ati_remote; + struct input_dev *input_dev; + struct rc_dev *rc_dev; + int err = -ENOMEM; + + if (iface_host->desc.bNumEndpoints != 2) { + err("%s: Unexpected desc.bNumEndpoints\n", __func__); + return -ENODEV; + } + + endpoint_in = &iface_host->endpoint[0].desc; + endpoint_out = &iface_host->endpoint[1].desc; + + if (!usb_endpoint_is_int_in(endpoint_in)) { + err("%s: Unexpected endpoint_in\n", __func__); + return -ENODEV; + } + if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) { + err("%s: endpoint_in message size==0? \n", __func__); + return -ENODEV; + } + + ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL); + rc_dev = rc_allocate_device(); + if (!ati_remote || !rc_dev) + goto exit_free_dev_rdev; + + /* Allocate URB buffers, URBs */ + if (ati_remote_alloc_buffers(udev, ati_remote)) + goto exit_free_buffers; + + ati_remote->endpoint_in = endpoint_in; + ati_remote->endpoint_out = endpoint_out; + ati_remote->udev = udev; + ati_remote->rdev = rc_dev; + ati_remote->interface = interface; + + usb_make_path(udev, ati_remote->rc_phys, sizeof(ati_remote->rc_phys)); + strlcpy(ati_remote->mouse_phys, ati_remote->rc_phys, + sizeof(ati_remote->mouse_phys)); + + strlcat(ati_remote->rc_phys, "/input0", sizeof(ati_remote->rc_phys)); + strlcat(ati_remote->mouse_phys, "/input1", sizeof(ati_remote->mouse_phys)); + + if (udev->manufacturer) + strlcpy(ati_remote->rc_name, udev->manufacturer, + sizeof(ati_remote->rc_name)); + + if (udev->product) + snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), + "%s %s", ati_remote->rc_name, udev->product); + + if (!strlen(ati_remote->rc_name)) + snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), + DRIVER_DESC "(%04x,%04x)", + le16_to_cpu(ati_remote->udev->descriptor.idVendor), + le16_to_cpu(ati_remote->udev->descriptor.idProduct)); + + snprintf(ati_remote->mouse_name, sizeof(ati_remote->mouse_name), + "%s mouse", ati_remote->rc_name); + + rc_dev->map_name = RC_MAP_ATI_X10; /* default map */ + + /* set default keymap according to receiver model */ + if (type) { + if (type->default_keymap) + rc_dev->map_name = type->default_keymap; + else if (type->get_default_keymap) + rc_dev->map_name = type->get_default_keymap(interface); + } + + ati_remote_rc_init(ati_remote); + mutex_init(&ati_remote->open_mutex); + + /* Device Hardware Initialization - fills in ati_remote->idev from udev. */ + err = ati_remote_initialize(ati_remote); + if (err) + goto exit_kill_urbs; + + /* Set up and register rc device */ + err = rc_register_device(ati_remote->rdev); + if (err) + goto exit_kill_urbs; + + /* use our delay for rc_dev */ + ati_remote->rdev->input_dev->rep[REP_DELAY] = repeat_delay; + + /* Set up and register mouse input device */ + if (mouse) { + input_dev = input_allocate_device(); + if (!input_dev) { + err = -ENOMEM; + goto exit_unregister_device; + } + + ati_remote->idev = input_dev; + ati_remote_input_init(ati_remote); + err = input_register_device(input_dev); + + if (err) + goto exit_free_input_device; + } + + usb_set_intfdata(interface, ati_remote); + return 0; + + exit_free_input_device: + input_free_device(input_dev); + exit_unregister_device: + rc_unregister_device(rc_dev); + rc_dev = NULL; + exit_kill_urbs: + usb_kill_urb(ati_remote->irq_urb); + usb_kill_urb(ati_remote->out_urb); + exit_free_buffers: + ati_remote_free_buffers(ati_remote); + exit_free_dev_rdev: + rc_free_device(rc_dev); + kfree(ati_remote); + return err; +} + +/* + * ati_remote_disconnect + */ +static void ati_remote_disconnect(struct usb_interface *interface) +{ + struct ati_remote *ati_remote; + + ati_remote = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + if (!ati_remote) { + dev_warn(&interface->dev, "%s - null device?\n", __func__); + return; + } + + usb_kill_urb(ati_remote->irq_urb); + usb_kill_urb(ati_remote->out_urb); + if (ati_remote->idev) + input_unregister_device(ati_remote->idev); + rc_unregister_device(ati_remote->rdev); + ati_remote_free_buffers(ati_remote); + kfree(ati_remote); +} + +/* usb specific object to register with the usb subsystem */ +static struct usb_driver ati_remote_driver = { + .name = "ati_remote", + .probe = ati_remote_probe, + .disconnect = ati_remote_disconnect, + .id_table = ati_remote_table, +}; + +module_usb_driver(ati_remote_driver); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); |