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HID: wiimote: Move common symbols into header
[deliverable/linux.git] / drivers / hid / hid-wiimote-core.c
CommitLineData
fb51b443
DH		 1/*
2 * HID driver for Nintendo Wiimote devices
3 * Copyright (c) 2011 David Herrmann
4 */
5
6/*
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 */
12
29d28064 13#include <linux/completion.h>
672bc4e0 14#include <linux/device.h>
02fb72a0 15#include <linux/hid.h>
672bc4e0 16#include <linux/input.h>
23a5a4a3 17#include <linux/leds.h>
fb51b443 18#include <linux/module.h>
29d28064 19#include <linux/mutex.h>
6591d758 20#include <linux/power_supply.h>
23c063cb 21#include <linux/spinlock.h>
02fb72a0 22#include "hid-ids.h"
7e274400 23#include "hid-wiimote.h"
fb51b443 24
b22e00f3 25#define WIIMOTE_VERSION "0.2"
1abb9ad3
DH		 26
27enum wiiproto_keys {
28 WIIPROTO_KEY_LEFT,
29 WIIPROTO_KEY_RIGHT,
30 WIIPROTO_KEY_UP,
31 WIIPROTO_KEY_DOWN,
32 WIIPROTO_KEY_PLUS,
33 WIIPROTO_KEY_MINUS,
34 WIIPROTO_KEY_ONE,
35 WIIPROTO_KEY_TWO,
36 WIIPROTO_KEY_A,
37 WIIPROTO_KEY_B,
38 WIIPROTO_KEY_HOME,
39 WIIPROTO_KEY_COUNT
40};
41
42static __u16 wiiproto_keymap[] = {
43 KEY_LEFT, /* WIIPROTO_KEY_LEFT */
44 KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
45 KEY_UP, /* WIIPROTO_KEY_UP */
46 KEY_DOWN, /* WIIPROTO_KEY_DOWN */
47 KEY_NEXT, /* WIIPROTO_KEY_PLUS */
48 KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
49 BTN_1, /* WIIPROTO_KEY_ONE */
50 BTN_2, /* WIIPROTO_KEY_TWO */
51 BTN_A, /* WIIPROTO_KEY_A */
52 BTN_B, /* WIIPROTO_KEY_B */
53 BTN_MODE, /* WIIPROTO_KEY_HOME */
54};
55
6591d758
DH		 56static enum power_supply_property wiimote_battery_props[] = {
57 POWER_SUPPLY_PROP_CAPACITY
58};
59
0c218f14
DH		 60static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
61 size_t count)
62{
63 __u8 *buf;
64 ssize_t ret;
65
66 if (!hdev->hid_output_raw_report)
67 return -ENODEV;
68
69 buf = kmemdup(buffer, count, GFP_KERNEL);
70 if (!buf)
71 return -ENOMEM;
72
73 ret = hdev->hid_output_raw_report(hdev, buf, count, HID_OUTPUT_REPORT);
74
75 kfree(buf);
76 return ret;
77}
78
23c063cb
DH		 79static void wiimote_worker(struct work_struct *work)
80{
81 struct wiimote_data *wdata = container_of(work, struct wiimote_data,
82 worker);
83 unsigned long flags;
84
85 spin_lock_irqsave(&wdata->qlock, flags);
86
87 while (wdata->head != wdata->tail) {
88 spin_unlock_irqrestore(&wdata->qlock, flags);
89 wiimote_hid_send(wdata->hdev, wdata->outq[wdata->tail].data,
90 wdata->outq[wdata->tail].size);
91 spin_lock_irqsave(&wdata->qlock, flags);
92
93 wdata->tail = (wdata->tail + 1) % WIIMOTE_BUFSIZE;
94 }
95
96 spin_unlock_irqrestore(&wdata->qlock, flags);
97}
98
99static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer,
100 size_t count)
101{
102 unsigned long flags;
103 __u8 newhead;
104
105 if (count > HID_MAX_BUFFER_SIZE) {
106 hid_warn(wdata->hdev, "Sending too large output report\n");
107 return;
108 }
109
110 /*
111 * Copy new request into our output queue and check whether the
112 * queue is full. If it is full, discard this request.
113 * If it is empty we need to start a new worker that will
114 * send out the buffer to the hid device.
115 * If the queue is not empty, then there must be a worker
116 * that is currently sending out our buffer and this worker
117 * will reschedule itself until the queue is empty.
118 */
119
120 spin_lock_irqsave(&wdata->qlock, flags);
121
122 memcpy(wdata->outq[wdata->head].data, buffer, count);
123 wdata->outq[wdata->head].size = count;
124 newhead = (wdata->head + 1) % WIIMOTE_BUFSIZE;
125
126 if (wdata->head == wdata->tail) {
127 wdata->head = newhead;
128 schedule_work(&wdata->worker);
129 } else if (newhead != wdata->tail) {
130 wdata->head = newhead;
131 } else {
132 hid_warn(wdata->hdev, "Output queue is full");
133 }
134
135 spin_unlock_irqrestore(&wdata->qlock, flags);
136}
137
c003ec21
DH		 138/*
139 * This sets the rumble bit on the given output report if rumble is
140 * currently enabled.
141 * \cmd1 must point to the second byte in the output report => &cmd[1]
142 * This must be called on nearly every output report before passing it
143 * into the output queue!
144 */
145static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1)
146{
147 if (wdata->state.flags & WIIPROTO_FLAG_RUMBLE)
148 *cmd1 |= 0x01;
149}
150
151static void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble)
152{
153 __u8 cmd[2];
154
155 rumble = !!rumble;
156 if (rumble == !!(wdata->state.flags & WIIPROTO_FLAG_RUMBLE))
157 return;
158
159 if (rumble)
160 wdata->state.flags |= WIIPROTO_FLAG_RUMBLE;
161 else
162 wdata->state.flags &= ~WIIPROTO_FLAG_RUMBLE;
163
164 cmd[0] = WIIPROTO_REQ_RUMBLE;
165 cmd[1] = 0;
166
167 wiiproto_keep_rumble(wdata, &cmd[1]);
168 wiimote_queue(wdata, cmd, sizeof(cmd));
169}
170
db308346
DH		 171static void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
172{
173 __u8 cmd[2];
174
32a0d9a5
DH		 175 leds &= WIIPROTO_FLAGS_LEDS;
176 if ((wdata->state.flags & WIIPROTO_FLAGS_LEDS) == leds)
177 return;
178 wdata->state.flags = (wdata->state.flags & ~WIIPROTO_FLAGS_LEDS) | leds;
179
db308346
DH		 180 cmd[0] = WIIPROTO_REQ_LED;
181 cmd[1] = 0;
182
183 if (leds & WIIPROTO_FLAG_LED1)
184 cmd[1] |= 0x10;
185 if (leds & WIIPROTO_FLAG_LED2)
186 cmd[1] |= 0x20;
187 if (leds & WIIPROTO_FLAG_LED3)
188 cmd[1] |= 0x40;
189 if (leds & WIIPROTO_FLAG_LED4)
190 cmd[1] |= 0x80;
191
c003ec21 192 wiiproto_keep_rumble(wdata, &cmd[1]);
db308346
DH		 193 wiimote_queue(wdata, cmd, sizeof(cmd));
194}
195
2cb5e4bc
DH		 196/*
197 * Check what peripherals of the wiimote are currently
198 * active and select a proper DRM that supports all of
199 * the requested data inputs.
200 */
201static __u8 select_drm(struct wiimote_data *wdata)
202{
f363e4f6
DH		 203 __u8 ir = wdata->state.flags & WIIPROTO_FLAGS_IR;
204
205 if (ir == WIIPROTO_FLAG_IR_BASIC) {
206 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
207 return WIIPROTO_REQ_DRM_KAIE;
208 else
209 return WIIPROTO_REQ_DRM_KIE;
210 } else if (ir == WIIPROTO_FLAG_IR_EXT) {
211 return WIIPROTO_REQ_DRM_KAI;
212 } else if (ir == WIIPROTO_FLAG_IR_FULL) {
213 return WIIPROTO_REQ_DRM_SKAI1;
214 } else {
215 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
216 return WIIPROTO_REQ_DRM_KA;
217 else
218 return WIIPROTO_REQ_DRM_K;
219 }
2cb5e4bc
DH		 220}
221
7e274400 222void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
2cb5e4bc
DH		 223{
224 __u8 cmd[3];
225
226 if (drm == WIIPROTO_REQ_NULL)
227 drm = select_drm(wdata);
228
229 cmd[0] = WIIPROTO_REQ_DRM;
230 cmd[1] = 0;
231 cmd[2] = drm;
232
c003ec21 233 wiiproto_keep_rumble(wdata, &cmd[1]);
2cb5e4bc
DH		 234 wiimote_queue(wdata, cmd, sizeof(cmd));
235}
236
e3979a91
DH		 237static void wiiproto_req_status(struct wiimote_data *wdata)
238{
239 __u8 cmd[2];
240
241 cmd[0] = WIIPROTO_REQ_SREQ;
242 cmd[1] = 0;
243
244 wiiproto_keep_rumble(wdata, &cmd[1]);
245 wiimote_queue(wdata, cmd, sizeof(cmd));
246}
247
98a558ae
DH		 248static void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel)
249{
250 accel = !!accel;
251 if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
252 return;
253
254 if (accel)
255 wdata->state.flags |= WIIPROTO_FLAG_ACCEL;
256 else
257 wdata->state.flags &= ~WIIPROTO_FLAG_ACCEL;
258
259 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
260}
261
fc221cda
DH		 262static void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags)
263{
264 __u8 cmd[2];
265
266 cmd[0] = WIIPROTO_REQ_IR1;
267 cmd[1] = flags;
268
269 wiiproto_keep_rumble(wdata, &cmd[1]);
270 wiimote_queue(wdata, cmd, sizeof(cmd));
271}
272
273static void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags)
274{
275 __u8 cmd[2];
276
277 cmd[0] = WIIPROTO_REQ_IR2;
278 cmd[1] = flags;
279
280 wiiproto_keep_rumble(wdata, &cmd[1]);
281 wiimote_queue(wdata, cmd, sizeof(cmd));
282}
283
be1ecd62
DH		 284#define wiiproto_req_wreg(wdata, os, buf, sz) \
285 wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
286
287#define wiiproto_req_weeprom(wdata, os, buf, sz) \
288 wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
289
290static void wiiproto_req_wmem(struct wiimote_data *wdata, bool eeprom,
291 __u32 offset, const __u8 *buf, __u8 size)
292{
293 __u8 cmd[22];
294
295 if (size > 16 || size == 0) {
296 hid_warn(wdata->hdev, "Invalid length %d wmem request\n", size);
297 return;
298 }
299
300 memset(cmd, 0, sizeof(cmd));
301 cmd[0] = WIIPROTO_REQ_WMEM;
302 cmd[2] = (offset >> 16) & 0xff;
303 cmd[3] = (offset >> 8) & 0xff;
304 cmd[4] = offset & 0xff;
305 cmd[5] = size;
306 memcpy(&cmd[6], buf, size);
307
308 if (!eeprom)
309 cmd[1] |= 0x04;
310
311 wiiproto_keep_rumble(wdata, &cmd[1]);
312 wiimote_queue(wdata, cmd, sizeof(cmd));
313}
314
33e84013 315/* requries the cmd-mutex to be held */
7e274400 316int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
33e84013
DH		 317 const __u8 *wmem, __u8 size)
318{
319 unsigned long flags;
320 int ret;
321
322 spin_lock_irqsave(&wdata->state.lock, flags);
323 wiimote_cmd_set(wdata, WIIPROTO_REQ_WMEM, 0);
324 wiiproto_req_wreg(wdata, offset, wmem, size);
325 spin_unlock_irqrestore(&wdata->state.lock, flags);
326
327 ret = wiimote_cmd_wait(wdata);
328 if (!ret && wdata->state.cmd_err)
329 ret = -EIO;
330
331 return ret;
332}
333
6591d758
DH		 334static int wiimote_battery_get_property(struct power_supply *psy,
335 enum power_supply_property psp,
336 union power_supply_propval *val)
337{
338 struct wiimote_data *wdata = container_of(psy,
339 struct wiimote_data, battery);
340 int ret = 0, state;
341 unsigned long flags;
342
343 ret = wiimote_cmd_acquire(wdata);
344 if (ret)
345 return ret;
346
347 spin_lock_irqsave(&wdata->state.lock, flags);
348 wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
349 wiiproto_req_status(wdata);
350 spin_unlock_irqrestore(&wdata->state.lock, flags);
351
352 ret = wiimote_cmd_wait(wdata);
353 state = wdata->state.cmd_battery;
354 wiimote_cmd_release(wdata);
355
356 if (ret)
357 return ret;
358
359 switch (psp) {
360 case POWER_SUPPLY_PROP_CAPACITY:
361 val->intval = state * 100 / 255;
362 break;
363 default:
364 ret = -EINVAL;
365 break;
366 }
367
368 return ret;
369}
370
fc221cda
DH		 371static int wiimote_init_ir(struct wiimote_data *wdata, __u16 mode)
372{
373 int ret;
374 unsigned long flags;
375 __u8 format = 0;
376 static const __u8 data_enable[] = { 0x01 };
377 static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
378 0x00, 0xaa, 0x00, 0x64 };
379 static const __u8 data_sens2[] = { 0x63, 0x03 };
380 static const __u8 data_fin[] = { 0x08 };
381
382 spin_lock_irqsave(&wdata->state.lock, flags);
383
384 if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
385 spin_unlock_irqrestore(&wdata->state.lock, flags);
386 return 0;
387 }
388
389 if (mode == 0) {
390 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
391 wiiproto_req_ir1(wdata, 0);
392 wiiproto_req_ir2(wdata, 0);
393 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
394 spin_unlock_irqrestore(&wdata->state.lock, flags);
395 return 0;
396 }
397
398 spin_unlock_irqrestore(&wdata->state.lock, flags);
399
400 ret = wiimote_cmd_acquire(wdata);
401 if (ret)
402 return ret;
403
404 /* send PIXEL CLOCK ENABLE cmd first */
405 spin_lock_irqsave(&wdata->state.lock, flags);
406 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
407 wiiproto_req_ir1(wdata, 0x06);
408 spin_unlock_irqrestore(&wdata->state.lock, flags);
409
410 ret = wiimote_cmd_wait(wdata);
411 if (ret)
412 goto unlock;
413 if (wdata->state.cmd_err) {
414 ret = -EIO;
415 goto unlock;
416 }
417
418 /* enable IR LOGIC */
419 spin_lock_irqsave(&wdata->state.lock, flags);
420 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
421 wiiproto_req_ir2(wdata, 0x06);
422 spin_unlock_irqrestore(&wdata->state.lock, flags);
423
424 ret = wiimote_cmd_wait(wdata);
425 if (ret)
426 goto unlock;
427 if (wdata->state.cmd_err) {
428 ret = -EIO;
429 goto unlock;
430 }
431
432 /* enable IR cam but do not make it send data, yet */
433 ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
434 sizeof(data_enable));
435 if (ret)
436 goto unlock;
437
438 /* write first sensitivity block */
439 ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
440 sizeof(data_sens1));
441 if (ret)
442 goto unlock;
443
444 /* write second sensitivity block */
445 ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
446 sizeof(data_sens2));
447 if (ret)
448 goto unlock;
449
450 /* put IR cam into desired state */
451 switch (mode) {
452 case WIIPROTO_FLAG_IR_FULL:
453 format = 5;
454 break;
455 case WIIPROTO_FLAG_IR_EXT:
456 format = 3;
457 break;
458 case WIIPROTO_FLAG_IR_BASIC:
459 format = 1;
460 break;
461 }
462 ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
463 if (ret)
464 goto unlock;
465
466 /* make IR cam send data */
467 ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
468 if (ret)
469 goto unlock;
470
471 /* request new DRM mode compatible to IR mode */
472 spin_lock_irqsave(&wdata->state.lock, flags);
473 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
474 wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
475 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
476 spin_unlock_irqrestore(&wdata->state.lock, flags);
477
478unlock:
479 wiimote_cmd_release(wdata);
480 return ret;
481}
482
23a5a4a3
DH		 483static enum led_brightness wiimote_leds_get(struct led_classdev *led_dev)
484{
485 struct wiimote_data *wdata;
486 struct device *dev = led_dev->dev->parent;
487 int i;
488 unsigned long flags;
489 bool value = false;
490
491 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
492
493 for (i = 0; i < 4; ++i) {
494 if (wdata->leds[i] == led_dev) {
495 spin_lock_irqsave(&wdata->state.lock, flags);
496 value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
497 spin_unlock_irqrestore(&wdata->state.lock, flags);
498 break;
499 }
500 }
501
502 return value ? LED_FULL : LED_OFF;
503}
504
505static void wiimote_leds_set(struct led_classdev *led_dev,
506 enum led_brightness value)
507{
508 struct wiimote_data *wdata;
509 struct device *dev = led_dev->dev->parent;
510 int i;
511 unsigned long flags;
512 __u8 state, flag;
513
514 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
515
516 for (i = 0; i < 4; ++i) {
517 if (wdata->leds[i] == led_dev) {
518 flag = WIIPROTO_FLAG_LED(i + 1);
519 spin_lock_irqsave(&wdata->state.lock, flags);
520 state = wdata->state.flags;
521 if (value == LED_OFF)
522 wiiproto_req_leds(wdata, state & ~flag);
523 else
524 wiiproto_req_leds(wdata, state | flag);
525 spin_unlock_irqrestore(&wdata->state.lock, flags);
526 break;
527 }
528 }
529}
3c1c2fce 530
d020be92
DH		 531static int wiimote_ff_play(struct input_dev *dev, void *data,
532 struct ff_effect *eff)
672bc4e0 533{
d020be92
DH		 534 struct wiimote_data *wdata = input_get_drvdata(dev);
535 __u8 value;
536 unsigned long flags;
537
538 /*
539 * The wiimote supports only a single rumble motor so if any magnitude
540 * is set to non-zero then we start the rumble motor. If both are set to
541 * zero, we stop the rumble motor.
542 */
543
544 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
545 value = 1;
546 else
547 value = 0;
548
549 spin_lock_irqsave(&wdata->state.lock, flags);
550 wiiproto_req_rumble(wdata, value);
551 spin_unlock_irqrestore(&wdata->state.lock, flags);
552
672bc4e0
DH		 553 return 0;
554}
555
26af1748
DH		 556static int wiimote_input_open(struct input_dev *dev)
557{
558 struct wiimote_data *wdata = input_get_drvdata(dev);
559
560 return hid_hw_open(wdata->hdev);
561}
562
563static void wiimote_input_close(struct input_dev *dev)
564{
565 struct wiimote_data *wdata = input_get_drvdata(dev);
566
567 hid_hw_close(wdata->hdev);
568}
569
98a558ae
DH		 570static int wiimote_accel_open(struct input_dev *dev)
571{
572 struct wiimote_data *wdata = input_get_drvdata(dev);
573 int ret;
574 unsigned long flags;
575
576 ret = hid_hw_open(wdata->hdev);
577 if (ret)
578 return ret;
579
580 spin_lock_irqsave(&wdata->state.lock, flags);
581 wiiproto_req_accel(wdata, true);
582 spin_unlock_irqrestore(&wdata->state.lock, flags);
583
584 return 0;
585}
586
587static void wiimote_accel_close(struct input_dev *dev)
588{
589 struct wiimote_data *wdata = input_get_drvdata(dev);
590 unsigned long flags;
591
592 spin_lock_irqsave(&wdata->state.lock, flags);
593 wiiproto_req_accel(wdata, false);
594 spin_unlock_irqrestore(&wdata->state.lock, flags);
595
596 hid_hw_close(wdata->hdev);
597}
598
0370d7cb
DH		 599static int wiimote_ir_open(struct input_dev *dev)
600{
601 struct wiimote_data *wdata = input_get_drvdata(dev);
602 int ret;
603
604 ret = hid_hw_open(wdata->hdev);
605 if (ret)
606 return ret;
607
608 ret = wiimote_init_ir(wdata, WIIPROTO_FLAG_IR_BASIC);
609 if (ret) {
610 hid_hw_close(wdata->hdev);
611 return ret;
612 }
613
614 return 0;
615}
616
617static void wiimote_ir_close(struct input_dev *dev)
618{
619 struct wiimote_data *wdata = input_get_drvdata(dev);
620
621 wiimote_init_ir(wdata, 0);
622 hid_hw_close(wdata->hdev);
623}
624
1abb9ad3
DH		 625static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
626{
627 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT],
628 !!(payload[0] & 0x01));
629 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_RIGHT],
630 !!(payload[0] & 0x02));
631 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_DOWN],
632 !!(payload[0] & 0x04));
633 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_UP],
634 !!(payload[0] & 0x08));
635 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_PLUS],
636 !!(payload[0] & 0x10));
637 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_TWO],
638 !!(payload[1] & 0x01));
639 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_ONE],
640 !!(payload[1] & 0x02));
641 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_B],
642 !!(payload[1] & 0x04));
643 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_A],
644 !!(payload[1] & 0x08));
645 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_MINUS],
646 !!(payload[1] & 0x10));
647 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_HOME],
648 !!(payload[1] & 0x80));
649 input_sync(wdata->input);
650}
651
efcf9188
DH		 652static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
653{
654 __u16 x, y, z;
655
656 if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
657 return;
658
659 /*
660 * payload is: BB BB XX YY ZZ
661 * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
662 * contain the upper 8 bits of each value. The lower 2 bits are
663 * contained in the buttons data BB BB.
664 * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
665 * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
666 * accel value and bit 6 is the second bit of the Z value.
667 * The first bit of Y and Z values is not available and always set to 0.
668 * 0x200 is returned on no movement.
669 */
670
671 x = payload[2] << 2;
672 y = payload[3] << 2;
673 z = payload[4] << 2;
674
675 x |= (payload[0] >> 5) & 0x3;
676 y |= (payload[1] >> 4) & 0x2;
677 z |= (payload[1] >> 5) & 0x2;
678
679 input_report_abs(wdata->accel, ABS_RX, x - 0x200);
680 input_report_abs(wdata->accel, ABS_RY, y - 0x200);
681 input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
682 input_sync(wdata->accel);
683}
684
eac39e7e
DH		 685#define ir_to_input0(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
686 ABS_HAT0X, ABS_HAT0Y)
687#define ir_to_input1(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
688 ABS_HAT1X, ABS_HAT1Y)
689#define ir_to_input2(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
690 ABS_HAT2X, ABS_HAT2Y)
691#define ir_to_input3(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
692 ABS_HAT3X, ABS_HAT3Y)
693
694static void __ir_to_input(struct wiimote_data *wdata, const __u8 *ir,
695 bool packed, __u8 xid, __u8 yid)
696{
697 __u16 x, y;
698
699 if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
700 return;
701
702 /*
703 * Basic IR data is encoded into 3 bytes. The first two bytes are the
704 * upper 8 bit of the X/Y data, the 3rd byte contains the lower 2 bits
705 * of both.
706 * If data is packed, then the 3rd byte is put first and slightly
707 * reordered. This allows to interleave packed and non-packed data to
708 * have two IR sets in 5 bytes instead of 6.
709 * The resulting 10bit X/Y values are passed to the ABS_HATXY input dev.
710 */
711
712 if (packed) {
713 x = ir[1] << 2;
714 y = ir[2] << 2;
715
716 x |= ir[0] & 0x3;
717 y |= (ir[0] >> 2) & 0x3;
718 } else {
719 x = ir[0] << 2;
720 y = ir[1] << 2;
721
722 x |= (ir[2] >> 4) & 0x3;
723 y |= (ir[2] >> 6) & 0x3;
724 }
725
726 input_report_abs(wdata->ir, xid, x);
727 input_report_abs(wdata->ir, yid, y);
728}
efcf9188 729
c87019e4
DH		 730static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
731{
732 handler_keys(wdata, payload);
733
734 /* on status reports the drm is reset so we need to resend the drm */
735 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
e3979a91
DH		 736
737 if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0)) {
738 wdata->state.cmd_battery = payload[5];
739 wiimote_cmd_complete(wdata);
740 }
c87019e4
DH		 741}
742
be1ecd62
DH		 743static void handler_data(struct wiimote_data *wdata, const __u8 *payload)
744{
745 handler_keys(wdata, payload);
746}
747
c87019e4
DH		 748static void handler_return(struct wiimote_data *wdata, const __u8 *payload)
749{
750 __u8 err = payload[3];
751 __u8 cmd = payload[2];
752
753 handler_keys(wdata, payload);
754
33e84013
DH		 755 if (wiimote_cmd_pending(wdata, cmd, 0)) {
756 wdata->state.cmd_err = err;
757 wiimote_cmd_complete(wdata);
758 } else if (err) {
c87019e4
DH		 759 hid_warn(wdata->hdev, "Remote error %hhu on req %hhu\n", err,
760 cmd);
33e84013 761 }
c87019e4
DH		 762}
763
efcf9188
DH		 764static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
765{
766 handler_keys(wdata, payload);
767 handler_accel(wdata, payload);
768}
769
7336b9f9
DH		 770static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
771{
772 handler_keys(wdata, payload);
773}
774
efcf9188
DH		 775static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
776{
777 handler_keys(wdata, payload);
778 handler_accel(wdata, payload);
eac39e7e
DH		 779 ir_to_input0(wdata, &payload[5], false);
780 ir_to_input1(wdata, &payload[8], false);
781 ir_to_input2(wdata, &payload[11], false);
782 ir_to_input3(wdata, &payload[14], false);
783 input_sync(wdata->ir);
784}
785
7336b9f9
DH		 786static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
787{
788 handler_keys(wdata, payload);
789}
790
eac39e7e
DH		 791static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
792{
793 handler_keys(wdata, payload);
794 ir_to_input0(wdata, &payload[2], false);
795 ir_to_input1(wdata, &payload[4], true);
796 ir_to_input2(wdata, &payload[7], false);
797 ir_to_input3(wdata, &payload[9], true);
798 input_sync(wdata->ir);
efcf9188
DH		 799}
800
801static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload)
802{
803 handler_keys(wdata, payload);
804 handler_accel(wdata, payload);
805}
806
807static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
808{
809 handler_keys(wdata, payload);
810 handler_accel(wdata, payload);
eac39e7e
DH		 811 ir_to_input0(wdata, &payload[5], false);
812 ir_to_input1(wdata, &payload[7], true);
813 ir_to_input2(wdata, &payload[10], false);
814 ir_to_input3(wdata, &payload[12], true);
815 input_sync(wdata->ir);
efcf9188
DH		 816}
817
7336b9f9
DH		 818static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
819{
820}
821
efcf9188
DH		 822static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)
823{
824 handler_keys(wdata, payload);
825
826 wdata->state.accel_split[0] = payload[2];
827 wdata->state.accel_split[1] = (payload[0] >> 1) & (0x10 | 0x20);
828 wdata->state.accel_split[1] |= (payload[1] << 1) & (0x40 | 0x80);
eac39e7e
DH		 829
830 ir_to_input0(wdata, &payload[3], false);
831 ir_to_input1(wdata, &payload[12], false);
832 input_sync(wdata->ir);
efcf9188
DH		 833}
834
835static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload)
836{
837 __u8 buf[5];
838
839 handler_keys(wdata, payload);
840
841 wdata->state.accel_split[1] |= (payload[0] >> 5) & (0x01 | 0x02);
842 wdata->state.accel_split[1] |= (payload[1] >> 3) & (0x04 | 0x08);
843
844 buf[0] = 0;
845 buf[1] = 0;
846 buf[2] = wdata->state.accel_split[0];
847 buf[3] = payload[2];
848 buf[4] = wdata->state.accel_split[1];
849 handler_accel(wdata, buf);
eac39e7e
DH		 850
851 ir_to_input2(wdata, &payload[3], false);
852 ir_to_input3(wdata, &payload[12], false);
853 input_sync(wdata->ir);
efcf9188
DH		 854}
855
a4d19197
DH		 856struct wiiproto_handler {
857 __u8 id;
858 size_t size;
859 void (*func)(struct wiimote_data *wdata, const __u8 *payload);
860};
861
862static struct wiiproto_handler handlers[] = {
c87019e4 863 { .id = WIIPROTO_REQ_STATUS, .size = 6, .func = handler_status },
be1ecd62 864 { .id = WIIPROTO_REQ_DATA, .size = 21, .func = handler_data },
c87019e4 865 { .id = WIIPROTO_REQ_RETURN, .size = 4, .func = handler_return },
1abb9ad3 866 { .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys },
efcf9188 867 { .id = WIIPROTO_REQ_DRM_KA, .size = 5, .func = handler_drm_KA },
7336b9f9 868 { .id = WIIPROTO_REQ_DRM_KE, .size = 10, .func = handler_drm_KE },
efcf9188 869 { .id = WIIPROTO_REQ_DRM_KAI, .size = 17, .func = handler_drm_KAI },
7336b9f9 870 { .id = WIIPROTO_REQ_DRM_KEE, .size = 21, .func = handler_drm_KEE },
efcf9188 871 { .id = WIIPROTO_REQ_DRM_KAE, .size = 21, .func = handler_drm_KAE },
eac39e7e 872 { .id = WIIPROTO_REQ_DRM_KIE, .size = 21, .func = handler_drm_KIE },
efcf9188 873 { .id = WIIPROTO_REQ_DRM_KAIE, .size = 21, .func = handler_drm_KAIE },
7336b9f9 874 { .id = WIIPROTO_REQ_DRM_E, .size = 21, .func = handler_drm_E },
efcf9188
DH		 875 { .id = WIIPROTO_REQ_DRM_SKAI1, .size = 21, .func = handler_drm_SKAI1 },
876 { .id = WIIPROTO_REQ_DRM_SKAI2, .size = 21, .func = handler_drm_SKAI2 },
a4d19197
DH		 877 { .id = 0 }
878};
879
02fb72a0
DH		 880static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
881 u8 *raw_data, int size)
882{
4d36e975 883 struct wiimote_data *wdata = hid_get_drvdata(hdev);
a4d19197
DH		 884 struct wiiproto_handler *h;
885 int i;
32a0d9a5 886 unsigned long flags;
7336b9f9 887 bool handled = false;
4d36e975 888
02fb72a0
DH		 889 if (size < 1)
890 return -EINVAL;
891
32a0d9a5
DH		 892 spin_lock_irqsave(&wdata->state.lock, flags);
893
a4d19197
DH		 894 for (i = 0; handlers[i].id; ++i) {
895 h = &handlers[i];
7336b9f9 896 if (h->id == raw_data[0] && h->size < size) {
a4d19197 897 h->func(wdata, &raw_data[1]);
7336b9f9
DH		 898 handled = true;
899 }
a4d19197
DH		 900 }
901
7336b9f9
DH		 902 if (!handled)
903 hid_warn(hdev, "Unhandled report %hhu size %d\n", raw_data[0],
904 size);
905
32a0d9a5
DH		 906 spin_unlock_irqrestore(&wdata->state.lock, flags);
907
02fb72a0
DH		 908 return 0;
909}
910
23a5a4a3
DH		 911static void wiimote_leds_destroy(struct wiimote_data *wdata)
912{
913 int i;
914 struct led_classdev *led;
915
916 for (i = 0; i < 4; ++i) {
917 if (wdata->leds[i]) {
918 led = wdata->leds[i];
919 wdata->leds[i] = NULL;
920 led_classdev_unregister(led);
921 kfree(led);
922 }
923 }
924}
925
926static int wiimote_leds_create(struct wiimote_data *wdata)
927{
928 int i, ret;
929 struct device *dev = &wdata->hdev->dev;
930 size_t namesz = strlen(dev_name(dev)) + 9;
931 struct led_classdev *led;
932 char *name;
933
934 for (i = 0; i < 4; ++i) {
935 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
936 if (!led) {
937 ret = -ENOMEM;
938 goto err;
939 }
940 name = (void*)&led[1];
941 snprintf(name, namesz, "%s:blue:p%d", dev_name(dev), i);
942 led->name = name;
943 led->brightness = 0;
944 led->max_brightness = 1;
945 led->brightness_get = wiimote_leds_get;
946 led->brightness_set = wiimote_leds_set;
947
948 ret = led_classdev_register(dev, led);
949 if (ret) {
950 kfree(led);
951 goto err;
952 }
953 wdata->leds[i] = led;
954 }
955
956 return 0;
957
958err:
959 wiimote_leds_destroy(wdata);
960 return ret;
961}
962
e894d0e3
DH		 963static struct wiimote_data *wiimote_create(struct hid_device *hdev)
964{
965 struct wiimote_data *wdata;
1abb9ad3 966 int i;
e894d0e3
DH		 967
968 wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
969 if (!wdata)
970 return NULL;
971
672bc4e0 972 wdata->input = input_allocate_device();
98a558ae
DH		 973 if (!wdata->input)
974 goto err;
672bc4e0 975
e894d0e3
DH		 976 wdata->hdev = hdev;
977 hid_set_drvdata(hdev, wdata);
978
672bc4e0 979 input_set_drvdata(wdata->input, wdata);
26af1748
DH		 980 wdata->input->open = wiimote_input_open;
981 wdata->input->close = wiimote_input_close;
672bc4e0
DH		 982 wdata->input->dev.parent = &wdata->hdev->dev;
983 wdata->input->id.bustype = wdata->hdev->bus;
984 wdata->input->id.vendor = wdata->hdev->vendor;
985 wdata->input->id.product = wdata->hdev->product;
986 wdata->input->id.version = wdata->hdev->version;
987 wdata->input->name = WIIMOTE_NAME;
988
1abb9ad3
DH		 989 set_bit(EV_KEY, wdata->input->evbit);
990 for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
991 set_bit(wiiproto_keymap[i], wdata->input->keybit);
992
d020be92 993 set_bit(FF_RUMBLE, wdata->input->ffbit);
98a558ae
DH		 994 if (input_ff_create_memless(wdata->input, NULL, wiimote_ff_play))
995 goto err_input;
996
997 wdata->accel = input_allocate_device();
998 if (!wdata->accel)
999 goto err_input;
1000
1001 input_set_drvdata(wdata->accel, wdata);
1002 wdata->accel->open = wiimote_accel_open;
1003 wdata->accel->close = wiimote_accel_close;
1004 wdata->accel->dev.parent = &wdata->hdev->dev;
1005 wdata->accel->id.bustype = wdata->hdev->bus;
1006 wdata->accel->id.vendor = wdata->hdev->vendor;
1007 wdata->accel->id.product = wdata->hdev->product;
1008 wdata->accel->id.version = wdata->hdev->version;
1009 wdata->accel->name = WIIMOTE_NAME " Accelerometer";
1010
1011 set_bit(EV_ABS, wdata->accel->evbit);
1012 set_bit(ABS_RX, wdata->accel->absbit);
1013 set_bit(ABS_RY, wdata->accel->absbit);
1014 set_bit(ABS_RZ, wdata->accel->absbit);
1015 input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
1016 input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
1017 input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
d020be92 1018
f363e4f6
DH		 1019 wdata->ir = input_allocate_device();
1020 if (!wdata->ir)
1021 goto err_ir;
1022
1023 input_set_drvdata(wdata->ir, wdata);
0370d7cb
DH		 1024 wdata->ir->open = wiimote_ir_open;
1025 wdata->ir->close = wiimote_ir_close;
f363e4f6
DH		 1026 wdata->ir->dev.parent = &wdata->hdev->dev;
1027 wdata->ir->id.bustype = wdata->hdev->bus;
1028 wdata->ir->id.vendor = wdata->hdev->vendor;
1029 wdata->ir->id.product = wdata->hdev->product;
1030 wdata->ir->id.version = wdata->hdev->version;
1031 wdata->ir->name = WIIMOTE_NAME " IR";
1032
1033 set_bit(EV_ABS, wdata->ir->evbit);
1034 set_bit(ABS_HAT0X, wdata->ir->absbit);
1035 set_bit(ABS_HAT0Y, wdata->ir->absbit);
1036 set_bit(ABS_HAT1X, wdata->ir->absbit);
1037 set_bit(ABS_HAT1Y, wdata->ir->absbit);
1038 set_bit(ABS_HAT2X, wdata->ir->absbit);
1039 set_bit(ABS_HAT2Y, wdata->ir->absbit);
1040 set_bit(ABS_HAT3X, wdata->ir->absbit);
1041 set_bit(ABS_HAT3Y, wdata->ir->absbit);
1042 input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
1043 input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
1044 input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
1045 input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
1046 input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
1047 input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
1048 input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
1049 input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
1050
23c063cb
DH		 1051 spin_lock_init(&wdata->qlock);
1052 INIT_WORK(&wdata->worker, wiimote_worker);
1053
32a0d9a5 1054 spin_lock_init(&wdata->state.lock);
29d28064
DH		 1055 init_completion(&wdata->state.ready);
1056 mutex_init(&wdata->state.sync);
32a0d9a5 1057
e894d0e3 1058 return wdata;
98a558ae 1059
f363e4f6
DH		 1060err_ir:
1061 input_free_device(wdata->accel);
98a558ae
DH		 1062err_input:
1063 input_free_device(wdata->input);
1064err:
1065 kfree(wdata);
1066 return NULL;
e894d0e3
DH		 1067}
1068
1069static void wiimote_destroy(struct wiimote_data *wdata)
1070{
23a5a4a3 1071 wiimote_leds_destroy(wdata);
3989ef6c 1072
6591d758 1073 power_supply_unregister(&wdata->battery);
98a558ae 1074 input_unregister_device(wdata->accel);
f363e4f6 1075 input_unregister_device(wdata->ir);
3989ef6c
DH		 1076 input_unregister_device(wdata->input);
1077 cancel_work_sync(&wdata->worker);
1078 hid_hw_stop(wdata->hdev);
1079
e894d0e3
DH		 1080 kfree(wdata);
1081}
1082
02fb72a0
DH		 1083static int wiimote_hid_probe(struct hid_device *hdev,
1084 const struct hid_device_id *id)
fb51b443 1085{
e894d0e3 1086 struct wiimote_data *wdata;
02fb72a0
DH		 1087 int ret;
1088
e894d0e3
DH		 1089 wdata = wiimote_create(hdev);
1090 if (!wdata) {
1091 hid_err(hdev, "Can't alloc device\n");
1092 return -ENOMEM;
1093 }
1094
02fb72a0
DH		 1095 ret = hid_parse(hdev);
1096 if (ret) {
1097 hid_err(hdev, "HID parse failed\n");
e894d0e3 1098 goto err;
02fb72a0
DH		 1099 }
1100
1101 ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
1102 if (ret) {
1103 hid_err(hdev, "HW start failed\n");
e894d0e3 1104 goto err;
02fb72a0
DH		 1105 }
1106
98a558ae 1107 ret = input_register_device(wdata->accel);
672bc4e0
DH		 1108 if (ret) {
1109 hid_err(hdev, "Cannot register input device\n");
1110 goto err_stop;
1111 }
1112
f363e4f6
DH		 1113 ret = input_register_device(wdata->ir);
1114 if (ret) {
1115 hid_err(hdev, "Cannot register input device\n");
1116 goto err_ir;
1117 }
1118
98a558ae
DH		 1119 ret = input_register_device(wdata->input);
1120 if (ret) {
1121 hid_err(hdev, "Cannot register input device\n");
1122 goto err_input;
1123 }
1124
6591d758
DH		 1125 wdata->battery.properties = wiimote_battery_props;
1126 wdata->battery.num_properties = ARRAY_SIZE(wiimote_battery_props);
1127 wdata->battery.get_property = wiimote_battery_get_property;
1128 wdata->battery.name = "wiimote_battery";
1129 wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
1130 wdata->battery.use_for_apm = 0;
1131
1132 ret = power_supply_register(&wdata->hdev->dev, &wdata->battery);
1133 if (ret) {
1134 hid_err(hdev, "Cannot register battery device\n");
1135 goto err_battery;
1136 }
1137
23a5a4a3 1138 ret = wiimote_leds_create(wdata);
3989ef6c
DH		 1139 if (ret)
1140 goto err_free;
1141
02fb72a0 1142 hid_info(hdev, "New device registered\n");
32a0d9a5
DH		 1143
1144 /* by default set led1 after device initialization */
1145 spin_lock_irq(&wdata->state.lock);
db308346 1146 wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
32a0d9a5
DH		 1147 spin_unlock_irq(&wdata->state.lock);
1148
fb51b443 1149 return 0;
e894d0e3 1150
3989ef6c
DH		 1151err_free:
1152 wiimote_destroy(wdata);
1153 return ret;
1154
6591d758
DH		 1155err_battery:
1156 input_unregister_device(wdata->input);
1157 wdata->input = NULL;
98a558ae 1158err_input:
f363e4f6
DH		 1159 input_unregister_device(wdata->ir);
1160 wdata->ir = NULL;
1161err_ir:
98a558ae
DH		 1162 input_unregister_device(wdata->accel);
1163 wdata->accel = NULL;
672bc4e0
DH		 1164err_stop:
1165 hid_hw_stop(hdev);
e894d0e3 1166err:
f363e4f6 1167 input_free_device(wdata->ir);
98a558ae 1168 input_free_device(wdata->accel);
672bc4e0 1169 input_free_device(wdata->input);
3989ef6c 1170 kfree(wdata);
e894d0e3 1171 return ret;
fb51b443
DH		 1172}
1173
02fb72a0
DH		 1174static void wiimote_hid_remove(struct hid_device *hdev)
1175{
e894d0e3
DH		 1176 struct wiimote_data *wdata = hid_get_drvdata(hdev);
1177
02fb72a0 1178 hid_info(hdev, "Device removed\n");
e894d0e3 1179 wiimote_destroy(wdata);
02fb72a0
DH		 1180}
1181
1182static const struct hid_device_id wiimote_hid_devices[] = {
1183 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
1184 USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1185 { }
1186};
1187MODULE_DEVICE_TABLE(hid, wiimote_hid_devices);
1188
1189static struct hid_driver wiimote_hid_driver = {
1190 .name = "wiimote",
1191 .id_table = wiimote_hid_devices,
1192 .probe = wiimote_hid_probe,
1193 .remove = wiimote_hid_remove,
1194 .raw_event = wiimote_hid_event,
1195};
1196
1197static int __init wiimote_init(void)
1198{
1199 int ret;
1200
1201 ret = hid_register_driver(&wiimote_hid_driver);
1202 if (ret)
1203 pr_err("Can't register wiimote hid driver\n");
1204
1205 return ret;
1206}
1207
fb51b443
DH		 1208static void __exit wiimote_exit(void)
1209{
02fb72a0 1210 hid_unregister_driver(&wiimote_hid_driver);
fb51b443
DH		 1211}
1212
1213module_init(wiimote_init);
1214module_exit(wiimote_exit);
1215MODULE_LICENSE("GPL");
1216MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
1217MODULE_DESCRIPTION(WIIMOTE_NAME " Device Driver");
1218MODULE_VERSION(WIIMOTE_VERSION);
Linux kernel - Deliverables
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