2 * USB ATI Remote support
4 * Copyright (c) 2011, 2012 Anssi Hannula <anssi.hannula@iki.fi>
5 * Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net>
6 * Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev
8 * This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including
9 * porting to the 2.6 kernel interfaces, along with other modification
10 * to better match the style of the existing usb/input drivers. However, the
11 * protocol and hardware handling is essentially unchanged from 2.1.1.
13 * The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by
18 * Feb 2004: Torrey Hoffman <thoffman@arnor.net>
20 * Jun 2004: Torrey Hoffman <thoffman@arnor.net>
22 * Added key repeat support contributed by:
23 * Vincent Vanackere <vanackere@lif.univ-mrs.fr>
24 * Added support for the "Lola" remote contributed by:
25 * Seth Cohn <sethcohn@yahoo.com>
27 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
29 * This program is free software; you can redistribute it and/or modify
30 * it under the terms of the GNU General Public License as published by
31 * the Free Software Foundation; either version 2 of the License, or
32 * (at your option) any later version.
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
43 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
45 * Hardware & software notes
47 * These remote controls are distributed by ATI as part of their
48 * "All-In-Wonder" video card packages. The receiver self-identifies as a
49 * "USB Receiver" with manufacturer "X10 Wireless Technology Inc".
51 * The "Lola" remote is available from X10. See:
52 * http://www.x10.com/products/lola_sg1.htm
53 * The Lola is similar to the ATI remote but has no mouse support, and slightly
56 * It is possible to use multiple receivers and remotes on multiple computers
57 * simultaneously by configuring them to use specific channels.
59 * The RF protocol used by the remote supports 16 distinct channels, 1 to 16.
60 * Actually, it may even support more, at least in some revisions of the
63 * Each remote can be configured to transmit on one channel as follows:
64 * - Press and hold the "hand icon" button.
65 * - When the red LED starts to blink, let go of the "hand icon" button.
66 * - When it stops blinking, input the channel code as two digits, from 01
67 * to 16, and press the hand icon again.
69 * The timing can be a little tricky. Try loading the module with debug=1
70 * to have the kernel print out messages about the remote control number
71 * and mask. Note: debugging prints remote numbers as zero-based hexadecimal.
73 * The driver has a "channel_mask" parameter. This bitmask specifies which
74 * channels will be ignored by the module. To mask out channels, just add
75 * all the 2^channel_number values together.
77 * For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote
78 * ignore signals coming from remote controls transmitting on channel 4, but
79 * accept all other channels.
81 * Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be
84 * The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this
85 * parameter are unused.
89 #include <linux/kernel.h>
90 #include <linux/errno.h>
91 #include <linux/init.h>
92 #include <linux/slab.h>
93 #include <linux/module.h>
94 #include <linux/mutex.h>
95 #include <linux/usb/input.h>
96 #include <linux/wait.h>
97 #include <linux/jiffies.h>
98 #include <media/rc-core.h>
101 * Module and Version Information, Module Parameters
104 #define ATI_REMOTE_VENDOR_ID 0x0bc7
105 #define LOLA_REMOTE_PRODUCT_ID 0x0002
106 #define LOLA2_REMOTE_PRODUCT_ID 0x0003
107 #define ATI_REMOTE_PRODUCT_ID 0x0004
108 #define NVIDIA_REMOTE_PRODUCT_ID 0x0005
109 #define MEDION_REMOTE_PRODUCT_ID 0x0006
110 #define FIREFLY_REMOTE_PRODUCT_ID 0x0008
112 #define DRIVER_VERSION "2.2.1"
113 #define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>"
114 #define DRIVER_DESC "ATI/X10 RF USB Remote Control"
116 #define NAME_BUFSIZE 80 /* size of product name, path buffers */
117 #define DATA_BUFSIZE 63 /* size of URB data buffers */
120 * Duplicate event filtering time.
121 * Sequential, identical KIND_FILTERED inputs with less than
122 * FILTER_TIME milliseconds between them are considered as repeat
123 * events. The hardware generates 5 events for the first keypress
124 * and we have to take this into account for an accurate repeat
127 #define FILTER_TIME 60 /* msec */
128 #define REPEAT_DELAY 500 /* msec */
130 static unsigned long channel_mask;
131 module_param(channel_mask, ulong, 0644);
132 MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore");
135 module_param(debug, int, 0644);
136 MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
138 static int repeat_filter = FILTER_TIME;
139 module_param(repeat_filter, int, 0644);
140 MODULE_PARM_DESC(repeat_filter, "Repeat filter time, default = 60 msec");
142 static int repeat_delay = REPEAT_DELAY;
143 module_param(repeat_delay, int, 0644);
144 MODULE_PARM_DESC(repeat_delay, "Delay before sending repeats, default = 500 msec");
146 static bool mouse = true;
147 module_param(mouse, bool, 0444);
148 MODULE_PARM_DESC(mouse, "Enable mouse device, default = yes");
150 #define dbginfo(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0)
152 #define err(format, arg...) printk(KERN_ERR format , ## arg)
154 struct ati_receiver_type {
155 /* either default_keymap or get_default_keymap should be set */
156 const char *default_keymap;
157 const char *(*get_default_keymap)(struct usb_interface *interface);
160 static const char *get_medion_keymap(struct usb_interface *interface)
162 struct usb_device *udev = interface_to_usbdev(interface);
165 * There are many different Medion remotes shipped with a receiver
166 * with the same usb id, but the receivers have subtle differences
167 * in the USB descriptors allowing us to detect them.
170 if (udev->manufacturer && udev->product) {
171 if (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP) {
173 if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc")
174 && !strcmp(udev->product, "USB Receiver"))
175 return RC_MAP_MEDION_X10_DIGITAINER;
177 if (!strcmp(udev->manufacturer, "X10 WTI")
178 && !strcmp(udev->product, "RF receiver"))
179 return RC_MAP_MEDION_X10_OR2X;
182 if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc")
183 && !strcmp(udev->product, "USB Receiver"))
184 return RC_MAP_MEDION_X10;
188 dev_info(&interface->dev,
189 "Unknown Medion X10 receiver, using default ati_remote Medion keymap\n");
191 return RC_MAP_MEDION_X10;
194 static const struct ati_receiver_type type_ati = { .default_keymap = RC_MAP_ATI_X10 };
195 static const struct ati_receiver_type type_medion = { .get_default_keymap = get_medion_keymap };
196 static const struct ati_receiver_type type_firefly = { .default_keymap = RC_MAP_SNAPSTREAM_FIREFLY };
198 static struct usb_device_id ati_remote_table[] = {
199 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)&type_ati },
200 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA2_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)&type_ati },
201 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)&type_ati },
202 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, NVIDIA_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)&type_ati },
203 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)&type_medion },
204 { USB_DEVICE(ATI_REMOTE_VENDOR_ID, FIREFLY_REMOTE_PRODUCT_ID), .driver_info = (unsigned long)&type_firefly },
205 {} /* Terminating entry */
208 MODULE_DEVICE_TABLE(usb, ati_remote_table);
210 /* Get hi and low bytes of a 16-bits int */
211 #define HI(a) ((unsigned char)((a) >> 8))
212 #define LO(a) ((unsigned char)((a) & 0xff))
214 #define SEND_FLAG_IN_PROGRESS 1
215 #define SEND_FLAG_COMPLETE 2
217 /* Device initialization strings */
218 static char init1[] = { 0x01, 0x00, 0x20, 0x14 };
219 static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 };
222 struct input_dev *idev;
224 struct usb_device *udev;
225 struct usb_interface *interface;
229 struct usb_endpoint_descriptor *endpoint_in;
230 struct usb_endpoint_descriptor *endpoint_out;
231 unsigned char *inbuf;
232 unsigned char *outbuf;
233 dma_addr_t inbuf_dma;
234 dma_addr_t outbuf_dma;
236 unsigned char old_data; /* Detect duplicate events */
237 unsigned long old_jiffies;
238 unsigned long acc_jiffies; /* handle acceleration */
239 unsigned long first_jiffies;
241 unsigned int repeat_count;
243 char rc_name[NAME_BUFSIZE];
244 char rc_phys[NAME_BUFSIZE];
245 char mouse_name[NAME_BUFSIZE];
246 char mouse_phys[NAME_BUFSIZE];
248 wait_queue_head_t wait;
251 int users; /* 0-2, users are rc and input */
252 struct mutex open_mutex;
255 /* "Kinds" of messages sent from the hardware to the driver. */
257 #define KIND_LITERAL 1 /* Simply pass to input system */
258 #define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */
259 #define KIND_LU 3 /* Directional keypad diagonals - left up, */
260 #define KIND_RU 4 /* right up, */
261 #define KIND_LD 5 /* left down, */
262 #define KIND_RD 6 /* right down */
263 #define KIND_ACCEL 7 /* Directional keypad - left, right, up, down.*/
265 /* Translation table from hardware messages to input events. */
266 static const struct {
272 } ati_remote_tbl[] = {
273 /* Directional control pad axes */
274 {KIND_ACCEL, 0x70, EV_REL, REL_X, -1}, /* left */
275 {KIND_ACCEL, 0x71, EV_REL, REL_X, 1}, /* right */
276 {KIND_ACCEL, 0x72, EV_REL, REL_Y, -1}, /* up */
277 {KIND_ACCEL, 0x73, EV_REL, REL_Y, 1}, /* down */
278 /* Directional control pad diagonals */
279 {KIND_LU, 0x74, EV_REL, 0, 0}, /* left up */
280 {KIND_RU, 0x75, EV_REL, 0, 0}, /* right up */
281 {KIND_LD, 0x77, EV_REL, 0, 0}, /* left down */
282 {KIND_RD, 0x76, EV_REL, 0, 0}, /* right down */
284 /* "Mouse button" buttons */
285 {KIND_LITERAL, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */
286 {KIND_LITERAL, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */
287 {KIND_LITERAL, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */
288 {KIND_LITERAL, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */
290 /* Artificial "doubleclick" events are generated by the hardware.
291 * They are mapped to the "side" and "extra" mouse buttons here. */
292 {KIND_FILTERED, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */
293 {KIND_FILTERED, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */
295 /* Non-mouse events are handled by rc-core */
296 {KIND_END, 0x00, EV_MAX + 1, 0, 0}
299 /* Local function prototypes */
300 static int ati_remote_sendpacket (struct ati_remote *ati_remote, u16 cmd, unsigned char *data);
301 static void ati_remote_irq_out (struct urb *urb);
302 static void ati_remote_irq_in (struct urb *urb);
303 static void ati_remote_input_report (struct urb *urb);
304 static int ati_remote_initialize (struct ati_remote *ati_remote);
305 static int ati_remote_probe (struct usb_interface *interface, const struct usb_device_id *id);
306 static void ati_remote_disconnect (struct usb_interface *interface);
308 /* usb specific object to register with the usb subsystem */
309 static struct usb_driver ati_remote_driver = {
310 .name = "ati_remote",
311 .probe = ati_remote_probe,
312 .disconnect = ati_remote_disconnect,
313 .id_table = ati_remote_table,
317 * ati_remote_dump_input
319 static void ati_remote_dump(struct device *dev, unsigned char *data,
323 if (data[0] != (unsigned char)0xff && data[0] != 0x00)
324 dev_warn(dev, "Weird byte 0x%02x\n", data[0]);
326 dev_warn(dev, "Weird key %02x %02x %02x %02x\n",
327 data[0], data[1], data[2], data[3]);
329 dev_warn(dev, "Weird data, len=%d %02x %02x %02x %02x %02x %02x ...\n",
330 len, data[0], data[1], data[2], data[3], data[4], data[5]);
336 static int ati_remote_open(struct ati_remote *ati_remote)
340 mutex_lock(&ati_remote->open_mutex);
342 if (ati_remote->users++ != 0)
343 goto out; /* one was already active */
345 /* On first open, submit the read urb which was set up previously. */
346 ati_remote->irq_urb->dev = ati_remote->udev;
347 if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) {
348 dev_err(&ati_remote->interface->dev,
349 "%s: usb_submit_urb failed!\n", __func__);
353 out: mutex_unlock(&ati_remote->open_mutex);
360 static void ati_remote_close(struct ati_remote *ati_remote)
362 mutex_lock(&ati_remote->open_mutex);
363 if (--ati_remote->users == 0)
364 usb_kill_urb(ati_remote->irq_urb);
365 mutex_unlock(&ati_remote->open_mutex);
368 static int ati_remote_input_open(struct input_dev *inputdev)
370 struct ati_remote *ati_remote = input_get_drvdata(inputdev);
371 return ati_remote_open(ati_remote);
374 static void ati_remote_input_close(struct input_dev *inputdev)
376 struct ati_remote *ati_remote = input_get_drvdata(inputdev);
377 ati_remote_close(ati_remote);
380 static int ati_remote_rc_open(struct rc_dev *rdev)
382 struct ati_remote *ati_remote = rdev->priv;
383 return ati_remote_open(ati_remote);
386 static void ati_remote_rc_close(struct rc_dev *rdev)
388 struct ati_remote *ati_remote = rdev->priv;
389 ati_remote_close(ati_remote);
395 static void ati_remote_irq_out(struct urb *urb)
397 struct ati_remote *ati_remote = urb->context;
400 dev_dbg(&ati_remote->interface->dev, "%s: status %d\n",
401 __func__, urb->status);
405 ati_remote->send_flags |= SEND_FLAG_COMPLETE;
407 wake_up(&ati_remote->wait);
411 * ati_remote_sendpacket
413 * Used to send device initialization strings
415 static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigned char *data)
420 memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd));
421 ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd);
423 ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1;
424 ati_remote->out_urb->dev = ati_remote->udev;
425 ati_remote->send_flags = SEND_FLAG_IN_PROGRESS;
427 retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC);
429 dev_dbg(&ati_remote->interface->dev,
430 "sendpacket: usb_submit_urb failed: %d\n", retval);
434 wait_event_timeout(ati_remote->wait,
435 ((ati_remote->out_urb->status != -EINPROGRESS) ||
436 (ati_remote->send_flags & SEND_FLAG_COMPLETE)),
438 usb_kill_urb(ati_remote->out_urb);
444 * ati_remote_compute_accel
446 * Implements acceleration curve for directional control pad
447 * If elapsed time since last event is > 1/4 second, user "stopped",
448 * so reset acceleration. Otherwise, user is probably holding the control
449 * pad down, so we increase acceleration, ramping up over two seconds to
452 static int ati_remote_compute_accel(struct ati_remote *ati_remote)
454 static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 };
455 unsigned long now = jiffies;
458 if (time_after(now, ati_remote->old_jiffies + msecs_to_jiffies(250))) {
460 ati_remote->acc_jiffies = now;
462 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(125)))
464 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(250)))
466 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(500)))
468 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1000)))
470 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1500)))
472 else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(2000)))
481 * ati_remote_report_input
483 static void ati_remote_input_report(struct urb *urb)
485 struct ati_remote *ati_remote = urb->context;
486 unsigned char *data= ati_remote->inbuf;
487 struct input_dev *dev = ati_remote->idev;
491 unsigned char scancode;
492 u32 wheel_keycode = KEY_RESERVED;
497 * data[1] = data[2] + data[3] + 0xd5 (a checksum byte)
498 * data[2] = the key code (with toggle bit in MSB with some models)
499 * data[3] = channel << 4 (the low 4 bits must be zero)
502 /* Deal with strange looking inputs */
503 if ( (urb->actual_length != 4) || (data[0] != 0x14) ||
504 ((data[3] & 0x0f) != 0x00) ) {
505 ati_remote_dump(&urb->dev->dev, data, urb->actual_length);
509 if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) {
510 dbginfo(&ati_remote->interface->dev,
511 "wrong checksum in input: %02x %02x %02x %02x\n",
512 data[0], data[1], data[2], data[3]);
516 /* Mask unwanted remote channels. */
517 /* note: remote_num is 0-based, channel 1 on remote == 0 here */
518 remote_num = (data[3] >> 4) & 0x0f;
519 if (channel_mask & (1 << (remote_num + 1))) {
520 dbginfo(&ati_remote->interface->dev,
521 "Masked input from channel 0x%02x: data %02x,%02x, mask= 0x%02lx\n",
522 remote_num, data[1], data[2], channel_mask);
527 * MSB is a toggle code, though only used by some devices
528 * (e.g. SnapStream Firefly)
530 scancode = data[2] & 0x7f;
532 dbginfo(&ati_remote->interface->dev,
533 "channel 0x%02x; key data %02x, scancode %02x\n",
534 remote_num, data[2], scancode);
536 if (scancode >= 0x70) {
538 * This is either a mouse or scrollwheel event, depending on
540 * Get the keycode assigned to scancode 0x78/0x70. If it is
541 * set, assume this is a scrollwheel up/down event.
543 wheel_keycode = rc_g_keycode_from_table(ati_remote->rdev,
546 if (wheel_keycode == KEY_RESERVED) {
547 /* scrollwheel was not mapped, assume mouse */
549 /* Look up event code index in the mouse translation table. */
550 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) {
551 if (scancode == ati_remote_tbl[i].data) {
559 if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) {
560 input_event(dev, ati_remote_tbl[index].type,
561 ati_remote_tbl[index].code,
562 ati_remote_tbl[index].value);
565 ati_remote->old_jiffies = jiffies;
569 if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) {
570 unsigned long now = jiffies;
572 /* Filter duplicate events which happen "too close" together. */
573 if (ati_remote->old_data == data[2] &&
574 time_before(now, ati_remote->old_jiffies +
575 msecs_to_jiffies(repeat_filter))) {
576 ati_remote->repeat_count++;
578 ati_remote->repeat_count = 0;
579 ati_remote->first_jiffies = now;
582 ati_remote->old_data = data[2];
583 ati_remote->old_jiffies = now;
585 /* Ensure we skip at least the 4 first duplicate events (generated
586 * by a single keypress), and continue skipping until repeat_delay
589 if (ati_remote->repeat_count > 0 &&
590 (ati_remote->repeat_count < 5 ||
591 time_before(now, ati_remote->first_jiffies +
592 msecs_to_jiffies(repeat_delay))))
596 /* Not a mouse event, hand it to rc-core. */
599 if (wheel_keycode != KEY_RESERVED) {
601 * This is a scrollwheel event, send the
602 * scroll up (0x78) / down (0x70) scancode
603 * repeatedly as many times as indicated by
604 * rest of the scancode.
606 count = (scancode & 0x07) + 1;
612 * We don't use the rc-core repeat handling yet as
613 * it would cause ghost repeats which would be a
614 * regression for this driver.
616 rc_keydown_notimeout(ati_remote->rdev, scancode,
618 rc_keyup(ati_remote->rdev);
623 input_event(dev, ati_remote_tbl[index].type,
624 ati_remote_tbl[index].code, 1);
626 input_event(dev, ati_remote_tbl[index].type,
627 ati_remote_tbl[index].code, 0);
633 * Other event kinds are from the directional control pad, and have an
634 * acceleration factor applied to them. Without this acceleration, the
635 * control pad is mostly unusable.
637 acc = ati_remote_compute_accel(ati_remote);
639 switch (ati_remote_tbl[index].kind) {
641 input_event(dev, ati_remote_tbl[index].type,
642 ati_remote_tbl[index].code,
643 ati_remote_tbl[index].value * acc);
646 input_report_rel(dev, REL_X, -acc);
647 input_report_rel(dev, REL_Y, -acc);
650 input_report_rel(dev, REL_X, acc);
651 input_report_rel(dev, REL_Y, -acc);
654 input_report_rel(dev, REL_X, -acc);
655 input_report_rel(dev, REL_Y, acc);
658 input_report_rel(dev, REL_X, acc);
659 input_report_rel(dev, REL_Y, acc);
662 dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n",
663 ati_remote_tbl[index].kind);
667 ati_remote->old_jiffies = jiffies;
668 ati_remote->old_data = data[2];
675 static void ati_remote_irq_in(struct urb *urb)
677 struct ati_remote *ati_remote = urb->context;
680 switch (urb->status) {
681 case 0: /* success */
682 ati_remote_input_report(urb);
684 case -ECONNRESET: /* unlink */
687 dev_dbg(&ati_remote->interface->dev, "%s: urb error status, unlink? \n",
691 dev_dbg(&ati_remote->interface->dev, "%s: Nonzero urb status %d\n",
692 __func__, urb->status);
695 retval = usb_submit_urb(urb, GFP_ATOMIC);
697 dev_err(&ati_remote->interface->dev, "%s: usb_submit_urb()=%d\n",
702 * ati_remote_alloc_buffers
704 static int ati_remote_alloc_buffers(struct usb_device *udev,
705 struct ati_remote *ati_remote)
707 ati_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
708 &ati_remote->inbuf_dma);
709 if (!ati_remote->inbuf)
712 ati_remote->outbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
713 &ati_remote->outbuf_dma);
714 if (!ati_remote->outbuf)
717 ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
718 if (!ati_remote->irq_urb)
721 ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL);
722 if (!ati_remote->out_urb)
729 * ati_remote_free_buffers
731 static void ati_remote_free_buffers(struct ati_remote *ati_remote)
733 usb_free_urb(ati_remote->irq_urb);
734 usb_free_urb(ati_remote->out_urb);
736 usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
737 ati_remote->inbuf, ati_remote->inbuf_dma);
739 usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
740 ati_remote->outbuf, ati_remote->outbuf_dma);
743 static void ati_remote_input_init(struct ati_remote *ati_remote)
745 struct input_dev *idev = ati_remote->idev;
748 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
749 idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
750 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA);
751 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
752 for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++)
753 if (ati_remote_tbl[i].type == EV_KEY)
754 set_bit(ati_remote_tbl[i].code, idev->keybit);
756 input_set_drvdata(idev, ati_remote);
758 idev->open = ati_remote_input_open;
759 idev->close = ati_remote_input_close;
761 idev->name = ati_remote->mouse_name;
762 idev->phys = ati_remote->mouse_phys;
764 usb_to_input_id(ati_remote->udev, &idev->id);
765 idev->dev.parent = &ati_remote->interface->dev;
768 static void ati_remote_rc_init(struct ati_remote *ati_remote)
770 struct rc_dev *rdev = ati_remote->rdev;
772 rdev->priv = ati_remote;
773 rdev->driver_type = RC_DRIVER_SCANCODE;
774 rdev->allowed_protos = RC_TYPE_OTHER;
775 rdev->driver_name = "ati_remote";
777 rdev->open = ati_remote_rc_open;
778 rdev->close = ati_remote_rc_close;
780 rdev->input_name = ati_remote->rc_name;
781 rdev->input_phys = ati_remote->rc_phys;
783 usb_to_input_id(ati_remote->udev, &rdev->input_id);
784 rdev->dev.parent = &ati_remote->interface->dev;
787 static int ati_remote_initialize(struct ati_remote *ati_remote)
789 struct usb_device *udev = ati_remote->udev;
792 init_waitqueue_head(&ati_remote->wait);
795 pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress);
796 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
797 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
799 usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf,
800 maxp, ati_remote_irq_in, ati_remote,
801 ati_remote->endpoint_in->bInterval);
802 ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma;
803 ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
806 pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress);
807 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
808 maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
810 usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf,
811 maxp, ati_remote_irq_out, ati_remote,
812 ati_remote->endpoint_out->bInterval);
813 ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma;
814 ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
816 /* send initialization strings */
817 if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) ||
818 (ati_remote_sendpacket(ati_remote, 0x8007, init2))) {
819 dev_err(&ati_remote->interface->dev,
820 "Initializing ati_remote hardware failed.\n");
830 static int ati_remote_probe(struct usb_interface *interface, const struct usb_device_id *id)
832 struct usb_device *udev = interface_to_usbdev(interface);
833 struct usb_host_interface *iface_host = interface->cur_altsetting;
834 struct usb_endpoint_descriptor *endpoint_in, *endpoint_out;
835 struct ati_receiver_type *type = (struct ati_receiver_type *)id->driver_info;
836 struct ati_remote *ati_remote;
837 struct input_dev *input_dev;
838 struct rc_dev *rc_dev;
841 if (iface_host->desc.bNumEndpoints != 2) {
842 err("%s: Unexpected desc.bNumEndpoints\n", __func__);
846 endpoint_in = &iface_host->endpoint[0].desc;
847 endpoint_out = &iface_host->endpoint[1].desc;
849 if (!usb_endpoint_is_int_in(endpoint_in)) {
850 err("%s: Unexpected endpoint_in\n", __func__);
853 if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
854 err("%s: endpoint_in message size==0? \n", __func__);
858 ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL);
859 rc_dev = rc_allocate_device();
860 if (!ati_remote || !rc_dev)
863 /* Allocate URB buffers, URBs */
864 if (ati_remote_alloc_buffers(udev, ati_remote))
867 ati_remote->endpoint_in = endpoint_in;
868 ati_remote->endpoint_out = endpoint_out;
869 ati_remote->udev = udev;
870 ati_remote->rdev = rc_dev;
871 ati_remote->interface = interface;
873 usb_make_path(udev, ati_remote->rc_phys, sizeof(ati_remote->rc_phys));
874 strlcpy(ati_remote->mouse_phys, ati_remote->rc_phys,
875 sizeof(ati_remote->mouse_phys));
877 strlcat(ati_remote->rc_phys, "/input0", sizeof(ati_remote->rc_phys));
878 strlcat(ati_remote->mouse_phys, "/input1", sizeof(ati_remote->mouse_phys));
880 if (udev->manufacturer)
881 strlcpy(ati_remote->rc_name, udev->manufacturer,
882 sizeof(ati_remote->rc_name));
885 snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name),
886 "%s %s", ati_remote->rc_name, udev->product);
888 if (!strlen(ati_remote->rc_name))
889 snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name),
890 DRIVER_DESC "(%04x,%04x)",
891 le16_to_cpu(ati_remote->udev->descriptor.idVendor),
892 le16_to_cpu(ati_remote->udev->descriptor.idProduct));
894 snprintf(ati_remote->mouse_name, sizeof(ati_remote->mouse_name),
895 "%s mouse", ati_remote->rc_name);
897 rc_dev->map_name = RC_MAP_ATI_X10; /* default map */
899 /* set default keymap according to receiver model */
901 if (type->default_keymap)
902 rc_dev->map_name = type->default_keymap;
903 else if (type->get_default_keymap)
904 rc_dev->map_name = type->get_default_keymap(interface);
907 ati_remote_rc_init(ati_remote);
908 mutex_init(&ati_remote->open_mutex);
910 /* Device Hardware Initialization - fills in ati_remote->idev from udev. */
911 err = ati_remote_initialize(ati_remote);
915 /* Set up and register rc device */
916 err = rc_register_device(ati_remote->rdev);
920 /* use our delay for rc_dev */
921 ati_remote->rdev->input_dev->rep[REP_DELAY] = repeat_delay;
923 /* Set up and register mouse input device */
925 input_dev = input_allocate_device();
929 ati_remote->idev = input_dev;
930 ati_remote_input_init(ati_remote);
931 err = input_register_device(input_dev);
937 usb_set_intfdata(interface, ati_remote);
940 fail5: input_free_device(input_dev);
941 fail4: rc_unregister_device(rc_dev);
943 fail3: usb_kill_urb(ati_remote->irq_urb);
944 usb_kill_urb(ati_remote->out_urb);
945 fail2: ati_remote_free_buffers(ati_remote);
946 fail1: rc_free_device(rc_dev);
952 * ati_remote_disconnect
954 static void ati_remote_disconnect(struct usb_interface *interface)
956 struct ati_remote *ati_remote;
958 ati_remote = usb_get_intfdata(interface);
959 usb_set_intfdata(interface, NULL);
961 dev_warn(&interface->dev, "%s - null device?\n", __func__);
965 usb_kill_urb(ati_remote->irq_urb);
966 usb_kill_urb(ati_remote->out_urb);
967 if (ati_remote->idev)
968 input_unregister_device(ati_remote->idev);
969 rc_unregister_device(ati_remote->rdev);
970 ati_remote_free_buffers(ati_remote);
974 module_usb_driver(ati_remote_driver);
976 MODULE_AUTHOR(DRIVER_AUTHOR);
977 MODULE_DESCRIPTION(DRIVER_DESC);
978 MODULE_LICENSE("GPL");