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HID: wiimote: Add status request
[deliverable/linux.git] / drivers / hid / hid-wiimote.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>
23c063cb 20#include <linux/spinlock.h>
02fb72a0 21#include "hid-ids.h"
fb51b443
DH		 22
23#define WIIMOTE_VERSION "0.1"
24#define WIIMOTE_NAME "Nintendo Wii Remote"
23c063cb
DH		 25#define WIIMOTE_BUFSIZE 32
26
27struct wiimote_buf {
28 __u8 data[HID_MAX_BUFFER_SIZE];
29 size_t size;
30};
fb51b443 31
32a0d9a5
DH		 32struct wiimote_state {
33 spinlock_t lock;
34 __u8 flags;
efcf9188 35 __u8 accel_split[2];
29d28064
DH		 36
37 /* synchronous cmd requests */
38 struct mutex sync;
39 struct completion ready;
40 int cmd;
41 __u32 opt;
33e84013
DH		 42
43 /* results of synchronous requests */
e3979a91 44 __u8 cmd_battery;
33e84013 45 __u8 cmd_err;
32a0d9a5
DH		 46};
47
e894d0e3
DH		 48struct wiimote_data {
49 struct hid_device *hdev;
672bc4e0 50 struct input_dev *input;
23a5a4a3 51 struct led_classdev *leds[4];
98a558ae 52 struct input_dev *accel;
f363e4f6 53 struct input_dev *ir;
23c063cb
DH		 54
55 spinlock_t qlock;
56 __u8 head;
57 __u8 tail;
58 struct wiimote_buf outq[WIIMOTE_BUFSIZE];
59 struct work_struct worker;
32a0d9a5
DH		 60
61 struct wiimote_state state;
e894d0e3
DH		 62};
63
c003ec21
DH		 64#define WIIPROTO_FLAG_LED1 0x01
65#define WIIPROTO_FLAG_LED2 0x02
66#define WIIPROTO_FLAG_LED3 0x04
67#define WIIPROTO_FLAG_LED4 0x08
68#define WIIPROTO_FLAG_RUMBLE 0x10
98a558ae 69#define WIIPROTO_FLAG_ACCEL 0x20
f363e4f6
DH		 70#define WIIPROTO_FLAG_IR_BASIC 0x40
71#define WIIPROTO_FLAG_IR_EXT 0x80
72#define WIIPROTO_FLAG_IR_FULL 0xc0 /* IR_BASIC | IR_EXT */
32a0d9a5
DH		 73#define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
74 WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
f363e4f6
DH		 75#define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
76 WIIPROTO_FLAG_IR_FULL)
db308346 77
23a5a4a3
DH		 78/* return flag for led \num */
79#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
80
1abb9ad3 81enum wiiproto_reqs {
2cb5e4bc 82 WIIPROTO_REQ_NULL = 0x0,
c003ec21 83 WIIPROTO_REQ_RUMBLE = 0x10,
db308346 84 WIIPROTO_REQ_LED = 0x11,
2cb5e4bc 85 WIIPROTO_REQ_DRM = 0x12,
fc221cda 86 WIIPROTO_REQ_IR1 = 0x13,
e3979a91 87 WIIPROTO_REQ_SREQ = 0x15,
be1ecd62
DH		 88 WIIPROTO_REQ_WMEM = 0x16,
89 WIIPROTO_REQ_RMEM = 0x17,
fc221cda 90 WIIPROTO_REQ_IR2 = 0x1a,
c87019e4 91 WIIPROTO_REQ_STATUS = 0x20,
be1ecd62 92 WIIPROTO_REQ_DATA = 0x21,
c87019e4 93 WIIPROTO_REQ_RETURN = 0x22,
1abb9ad3 94 WIIPROTO_REQ_DRM_K = 0x30,
efcf9188 95 WIIPROTO_REQ_DRM_KA = 0x31,
7336b9f9 96 WIIPROTO_REQ_DRM_KE = 0x32,
efcf9188 97 WIIPROTO_REQ_DRM_KAI = 0x33,
7336b9f9 98 WIIPROTO_REQ_DRM_KEE = 0x34,
efcf9188 99 WIIPROTO_REQ_DRM_KAE = 0x35,
f363e4f6 100 WIIPROTO_REQ_DRM_KIE = 0x36,
efcf9188 101 WIIPROTO_REQ_DRM_KAIE = 0x37,
7336b9f9 102 WIIPROTO_REQ_DRM_E = 0x3d,
efcf9188
DH		 103 WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
104 WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
1abb9ad3
DH		 105};
106
107enum wiiproto_keys {
108 WIIPROTO_KEY_LEFT,
109 WIIPROTO_KEY_RIGHT,
110 WIIPROTO_KEY_UP,
111 WIIPROTO_KEY_DOWN,
112 WIIPROTO_KEY_PLUS,
113 WIIPROTO_KEY_MINUS,
114 WIIPROTO_KEY_ONE,
115 WIIPROTO_KEY_TWO,
116 WIIPROTO_KEY_A,
117 WIIPROTO_KEY_B,
118 WIIPROTO_KEY_HOME,
119 WIIPROTO_KEY_COUNT
120};
121
122static __u16 wiiproto_keymap[] = {
123 KEY_LEFT, /* WIIPROTO_KEY_LEFT */
124 KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
125 KEY_UP, /* WIIPROTO_KEY_UP */
126 KEY_DOWN, /* WIIPROTO_KEY_DOWN */
127 KEY_NEXT, /* WIIPROTO_KEY_PLUS */
128 KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
129 BTN_1, /* WIIPROTO_KEY_ONE */
130 BTN_2, /* WIIPROTO_KEY_TWO */
131 BTN_A, /* WIIPROTO_KEY_A */
132 BTN_B, /* WIIPROTO_KEY_B */
133 BTN_MODE, /* WIIPROTO_KEY_HOME */
134};
135
29d28064
DH		 136/* requires the state.lock spinlock to be held */
137static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
138 __u32 opt)
139{
140 return wdata->state.cmd == cmd && wdata->state.opt == opt;
141}
142
143/* requires the state.lock spinlock to be held */
144static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
145{
146 wdata->state.cmd = WIIPROTO_REQ_NULL;
147 complete(&wdata->state.ready);
148}
149
150static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
151{
152 return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
153}
154
155/* requires the state.lock spinlock to be held */
156static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
157 __u32 opt)
158{
159 INIT_COMPLETION(wdata->state.ready);
160 wdata->state.cmd = cmd;
161 wdata->state.opt = opt;
162}
163
164static inline void wiimote_cmd_release(struct wiimote_data *wdata)
165{
166 mutex_unlock(&wdata->state.sync);
167}
168
169static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
170{
171 int ret;
172
173 ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
174 if (ret < 0)
175 return -ERESTARTSYS;
176 else if (ret == 0)
177 return -EIO;
178 else
179 return 0;
180}
181
0c218f14
DH		 182static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
183 size_t count)
184{
185 __u8 *buf;
186 ssize_t ret;
187
188 if (!hdev->hid_output_raw_report)
189 return -ENODEV;
190
191 buf = kmemdup(buffer, count, GFP_KERNEL);
192 if (!buf)
193 return -ENOMEM;
194
195 ret = hdev->hid_output_raw_report(hdev, buf, count, HID_OUTPUT_REPORT);
196
197 kfree(buf);
198 return ret;
199}
200
23c063cb
DH		 201static void wiimote_worker(struct work_struct *work)
202{
203 struct wiimote_data *wdata = container_of(work, struct wiimote_data,
204 worker);
205 unsigned long flags;
206
207 spin_lock_irqsave(&wdata->qlock, flags);
208
209 while (wdata->head != wdata->tail) {
210 spin_unlock_irqrestore(&wdata->qlock, flags);
211 wiimote_hid_send(wdata->hdev, wdata->outq[wdata->tail].data,
212 wdata->outq[wdata->tail].size);
213 spin_lock_irqsave(&wdata->qlock, flags);
214
215 wdata->tail = (wdata->tail + 1) % WIIMOTE_BUFSIZE;
216 }
217
218 spin_unlock_irqrestore(&wdata->qlock, flags);
219}
220
221static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer,
222 size_t count)
223{
224 unsigned long flags;
225 __u8 newhead;
226
227 if (count > HID_MAX_BUFFER_SIZE) {
228 hid_warn(wdata->hdev, "Sending too large output report\n");
229 return;
230 }
231
232 /*
233 * Copy new request into our output queue and check whether the
234 * queue is full. If it is full, discard this request.
235 * If it is empty we need to start a new worker that will
236 * send out the buffer to the hid device.
237 * If the queue is not empty, then there must be a worker
238 * that is currently sending out our buffer and this worker
239 * will reschedule itself until the queue is empty.
240 */
241
242 spin_lock_irqsave(&wdata->qlock, flags);
243
244 memcpy(wdata->outq[wdata->head].data, buffer, count);
245 wdata->outq[wdata->head].size = count;
246 newhead = (wdata->head + 1) % WIIMOTE_BUFSIZE;
247
248 if (wdata->head == wdata->tail) {
249 wdata->head = newhead;
250 schedule_work(&wdata->worker);
251 } else if (newhead != wdata->tail) {
252 wdata->head = newhead;
253 } else {
254 hid_warn(wdata->hdev, "Output queue is full");
255 }
256
257 spin_unlock_irqrestore(&wdata->qlock, flags);
258}
259
c003ec21
DH		 260/*
261 * This sets the rumble bit on the given output report if rumble is
262 * currently enabled.
263 * \cmd1 must point to the second byte in the output report => &cmd[1]
264 * This must be called on nearly every output report before passing it
265 * into the output queue!
266 */
267static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1)
268{
269 if (wdata->state.flags & WIIPROTO_FLAG_RUMBLE)
270 *cmd1 |= 0x01;
271}
272
273static void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble)
274{
275 __u8 cmd[2];
276
277 rumble = !!rumble;
278 if (rumble == !!(wdata->state.flags & WIIPROTO_FLAG_RUMBLE))
279 return;
280
281 if (rumble)
282 wdata->state.flags |= WIIPROTO_FLAG_RUMBLE;
283 else
284 wdata->state.flags &= ~WIIPROTO_FLAG_RUMBLE;
285
286 cmd[0] = WIIPROTO_REQ_RUMBLE;
287 cmd[1] = 0;
288
289 wiiproto_keep_rumble(wdata, &cmd[1]);
290 wiimote_queue(wdata, cmd, sizeof(cmd));
291}
292
db308346
DH		 293static void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
294{
295 __u8 cmd[2];
296
32a0d9a5
DH		 297 leds &= WIIPROTO_FLAGS_LEDS;
298 if ((wdata->state.flags & WIIPROTO_FLAGS_LEDS) == leds)
299 return;
300 wdata->state.flags = (wdata->state.flags & ~WIIPROTO_FLAGS_LEDS) | leds;
301
db308346
DH		 302 cmd[0] = WIIPROTO_REQ_LED;
303 cmd[1] = 0;
304
305 if (leds & WIIPROTO_FLAG_LED1)
306 cmd[1] |= 0x10;
307 if (leds & WIIPROTO_FLAG_LED2)
308 cmd[1] |= 0x20;
309 if (leds & WIIPROTO_FLAG_LED3)
310 cmd[1] |= 0x40;
311 if (leds & WIIPROTO_FLAG_LED4)
312 cmd[1] |= 0x80;
313
c003ec21 314 wiiproto_keep_rumble(wdata, &cmd[1]);
db308346
DH		 315 wiimote_queue(wdata, cmd, sizeof(cmd));
316}
317
2cb5e4bc
DH		 318/*
319 * Check what peripherals of the wiimote are currently
320 * active and select a proper DRM that supports all of
321 * the requested data inputs.
322 */
323static __u8 select_drm(struct wiimote_data *wdata)
324{
f363e4f6
DH		 325 __u8 ir = wdata->state.flags & WIIPROTO_FLAGS_IR;
326
327 if (ir == WIIPROTO_FLAG_IR_BASIC) {
328 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
329 return WIIPROTO_REQ_DRM_KAIE;
330 else
331 return WIIPROTO_REQ_DRM_KIE;
332 } else if (ir == WIIPROTO_FLAG_IR_EXT) {
333 return WIIPROTO_REQ_DRM_KAI;
334 } else if (ir == WIIPROTO_FLAG_IR_FULL) {
335 return WIIPROTO_REQ_DRM_SKAI1;
336 } else {
337 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
338 return WIIPROTO_REQ_DRM_KA;
339 else
340 return WIIPROTO_REQ_DRM_K;
341 }
2cb5e4bc
DH		 342}
343
344static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
345{
346 __u8 cmd[3];
347
348 if (drm == WIIPROTO_REQ_NULL)
349 drm = select_drm(wdata);
350
351 cmd[0] = WIIPROTO_REQ_DRM;
352 cmd[1] = 0;
353 cmd[2] = drm;
354
c003ec21 355 wiiproto_keep_rumble(wdata, &cmd[1]);
2cb5e4bc
DH		 356 wiimote_queue(wdata, cmd, sizeof(cmd));
357}
358
e3979a91
DH		 359static void wiiproto_req_status(struct wiimote_data *wdata)
360{
361 __u8 cmd[2];
362
363 cmd[0] = WIIPROTO_REQ_SREQ;
364 cmd[1] = 0;
365
366 wiiproto_keep_rumble(wdata, &cmd[1]);
367 wiimote_queue(wdata, cmd, sizeof(cmd));
368}
369
98a558ae
DH		 370static void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel)
371{
372 accel = !!accel;
373 if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
374 return;
375
376 if (accel)
377 wdata->state.flags |= WIIPROTO_FLAG_ACCEL;
378 else
379 wdata->state.flags &= ~WIIPROTO_FLAG_ACCEL;
380
381 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
382}
383
fc221cda
DH		 384static void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags)
385{
386 __u8 cmd[2];
387
388 cmd[0] = WIIPROTO_REQ_IR1;
389 cmd[1] = flags;
390
391 wiiproto_keep_rumble(wdata, &cmd[1]);
392 wiimote_queue(wdata, cmd, sizeof(cmd));
393}
394
395static void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags)
396{
397 __u8 cmd[2];
398
399 cmd[0] = WIIPROTO_REQ_IR2;
400 cmd[1] = flags;
401
402 wiiproto_keep_rumble(wdata, &cmd[1]);
403 wiimote_queue(wdata, cmd, sizeof(cmd));
404}
405
be1ecd62
DH		 406#define wiiproto_req_wreg(wdata, os, buf, sz) \
407 wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
408
409#define wiiproto_req_weeprom(wdata, os, buf, sz) \
410 wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
411
412static void wiiproto_req_wmem(struct wiimote_data *wdata, bool eeprom,
413 __u32 offset, const __u8 *buf, __u8 size)
414{
415 __u8 cmd[22];
416
417 if (size > 16 || size == 0) {
418 hid_warn(wdata->hdev, "Invalid length %d wmem request\n", size);
419 return;
420 }
421
422 memset(cmd, 0, sizeof(cmd));
423 cmd[0] = WIIPROTO_REQ_WMEM;
424 cmd[2] = (offset >> 16) & 0xff;
425 cmd[3] = (offset >> 8) & 0xff;
426 cmd[4] = offset & 0xff;
427 cmd[5] = size;
428 memcpy(&cmd[6], buf, size);
429
430 if (!eeprom)
431 cmd[1] |= 0x04;
432
433 wiiproto_keep_rumble(wdata, &cmd[1]);
434 wiimote_queue(wdata, cmd, sizeof(cmd));
435}
436
33e84013
DH		 437/* requries the cmd-mutex to be held */
438static int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
439 const __u8 *wmem, __u8 size)
440{
441 unsigned long flags;
442 int ret;
443
444 spin_lock_irqsave(&wdata->state.lock, flags);
445 wiimote_cmd_set(wdata, WIIPROTO_REQ_WMEM, 0);
446 wiiproto_req_wreg(wdata, offset, wmem, size);
447 spin_unlock_irqrestore(&wdata->state.lock, flags);
448
449 ret = wiimote_cmd_wait(wdata);
450 if (!ret && wdata->state.cmd_err)
451 ret = -EIO;
452
453 return ret;
454}
455
fc221cda
DH		 456static int wiimote_init_ir(struct wiimote_data *wdata, __u16 mode)
457{
458 int ret;
459 unsigned long flags;
460 __u8 format = 0;
461 static const __u8 data_enable[] = { 0x01 };
462 static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
463 0x00, 0xaa, 0x00, 0x64 };
464 static const __u8 data_sens2[] = { 0x63, 0x03 };
465 static const __u8 data_fin[] = { 0x08 };
466
467 spin_lock_irqsave(&wdata->state.lock, flags);
468
469 if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
470 spin_unlock_irqrestore(&wdata->state.lock, flags);
471 return 0;
472 }
473
474 if (mode == 0) {
475 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
476 wiiproto_req_ir1(wdata, 0);
477 wiiproto_req_ir2(wdata, 0);
478 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
479 spin_unlock_irqrestore(&wdata->state.lock, flags);
480 return 0;
481 }
482
483 spin_unlock_irqrestore(&wdata->state.lock, flags);
484
485 ret = wiimote_cmd_acquire(wdata);
486 if (ret)
487 return ret;
488
489 /* send PIXEL CLOCK ENABLE cmd first */
490 spin_lock_irqsave(&wdata->state.lock, flags);
491 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
492 wiiproto_req_ir1(wdata, 0x06);
493 spin_unlock_irqrestore(&wdata->state.lock, flags);
494
495 ret = wiimote_cmd_wait(wdata);
496 if (ret)
497 goto unlock;
498 if (wdata->state.cmd_err) {
499 ret = -EIO;
500 goto unlock;
501 }
502
503 /* enable IR LOGIC */
504 spin_lock_irqsave(&wdata->state.lock, flags);
505 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
506 wiiproto_req_ir2(wdata, 0x06);
507 spin_unlock_irqrestore(&wdata->state.lock, flags);
508
509 ret = wiimote_cmd_wait(wdata);
510 if (ret)
511 goto unlock;
512 if (wdata->state.cmd_err) {
513 ret = -EIO;
514 goto unlock;
515 }
516
517 /* enable IR cam but do not make it send data, yet */
518 ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
519 sizeof(data_enable));
520 if (ret)
521 goto unlock;
522
523 /* write first sensitivity block */
524 ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
525 sizeof(data_sens1));
526 if (ret)
527 goto unlock;
528
529 /* write second sensitivity block */
530 ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
531 sizeof(data_sens2));
532 if (ret)
533 goto unlock;
534
535 /* put IR cam into desired state */
536 switch (mode) {
537 case WIIPROTO_FLAG_IR_FULL:
538 format = 5;
539 break;
540 case WIIPROTO_FLAG_IR_EXT:
541 format = 3;
542 break;
543 case WIIPROTO_FLAG_IR_BASIC:
544 format = 1;
545 break;
546 }
547 ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
548 if (ret)
549 goto unlock;
550
551 /* make IR cam send data */
552 ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
553 if (ret)
554 goto unlock;
555
556 /* request new DRM mode compatible to IR mode */
557 spin_lock_irqsave(&wdata->state.lock, flags);
558 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
559 wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
560 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
561 spin_unlock_irqrestore(&wdata->state.lock, flags);
562
563unlock:
564 wiimote_cmd_release(wdata);
565 return ret;
566}
567
23a5a4a3
DH		 568static enum led_brightness wiimote_leds_get(struct led_classdev *led_dev)
569{
570 struct wiimote_data *wdata;
571 struct device *dev = led_dev->dev->parent;
572 int i;
573 unsigned long flags;
574 bool value = false;
575
576 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
577
578 for (i = 0; i < 4; ++i) {
579 if (wdata->leds[i] == led_dev) {
580 spin_lock_irqsave(&wdata->state.lock, flags);
581 value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
582 spin_unlock_irqrestore(&wdata->state.lock, flags);
583 break;
584 }
585 }
586
587 return value ? LED_FULL : LED_OFF;
588}
589
590static void wiimote_leds_set(struct led_classdev *led_dev,
591 enum led_brightness value)
592{
593 struct wiimote_data *wdata;
594 struct device *dev = led_dev->dev->parent;
595 int i;
596 unsigned long flags;
597 __u8 state, flag;
598
599 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
600
601 for (i = 0; i < 4; ++i) {
602 if (wdata->leds[i] == led_dev) {
603 flag = WIIPROTO_FLAG_LED(i + 1);
604 spin_lock_irqsave(&wdata->state.lock, flags);
605 state = wdata->state.flags;
606 if (value == LED_OFF)
607 wiiproto_req_leds(wdata, state & ~flag);
608 else
609 wiiproto_req_leds(wdata, state | flag);
610 spin_unlock_irqrestore(&wdata->state.lock, flags);
611 break;
612 }
613 }
614}
3c1c2fce 615
d020be92
DH		 616static int wiimote_ff_play(struct input_dev *dev, void *data,
617 struct ff_effect *eff)
672bc4e0 618{
d020be92
DH		 619 struct wiimote_data *wdata = input_get_drvdata(dev);
620 __u8 value;
621 unsigned long flags;
622
623 /*
624 * The wiimote supports only a single rumble motor so if any magnitude
625 * is set to non-zero then we start the rumble motor. If both are set to
626 * zero, we stop the rumble motor.
627 */
628
629 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
630 value = 1;
631 else
632 value = 0;
633
634 spin_lock_irqsave(&wdata->state.lock, flags);
635 wiiproto_req_rumble(wdata, value);
636 spin_unlock_irqrestore(&wdata->state.lock, flags);
637
672bc4e0
DH		 638 return 0;
639}
640
26af1748
DH		 641static int wiimote_input_open(struct input_dev *dev)
642{
643 struct wiimote_data *wdata = input_get_drvdata(dev);
644
645 return hid_hw_open(wdata->hdev);
646}
647
648static void wiimote_input_close(struct input_dev *dev)
649{
650 struct wiimote_data *wdata = input_get_drvdata(dev);
651
652 hid_hw_close(wdata->hdev);
653}
654
98a558ae
DH		 655static int wiimote_accel_open(struct input_dev *dev)
656{
657 struct wiimote_data *wdata = input_get_drvdata(dev);
658 int ret;
659 unsigned long flags;
660
661 ret = hid_hw_open(wdata->hdev);
662 if (ret)
663 return ret;
664
665 spin_lock_irqsave(&wdata->state.lock, flags);
666 wiiproto_req_accel(wdata, true);
667 spin_unlock_irqrestore(&wdata->state.lock, flags);
668
669 return 0;
670}
671
672static void wiimote_accel_close(struct input_dev *dev)
673{
674 struct wiimote_data *wdata = input_get_drvdata(dev);
675 unsigned long flags;
676
677 spin_lock_irqsave(&wdata->state.lock, flags);
678 wiiproto_req_accel(wdata, false);
679 spin_unlock_irqrestore(&wdata->state.lock, flags);
680
681 hid_hw_close(wdata->hdev);
682}
683
0370d7cb
DH		 684static int wiimote_ir_open(struct input_dev *dev)
685{
686 struct wiimote_data *wdata = input_get_drvdata(dev);
687 int ret;
688
689 ret = hid_hw_open(wdata->hdev);
690 if (ret)
691 return ret;
692
693 ret = wiimote_init_ir(wdata, WIIPROTO_FLAG_IR_BASIC);
694 if (ret) {
695 hid_hw_close(wdata->hdev);
696 return ret;
697 }
698
699 return 0;
700}
701
702static void wiimote_ir_close(struct input_dev *dev)
703{
704 struct wiimote_data *wdata = input_get_drvdata(dev);
705
706 wiimote_init_ir(wdata, 0);
707 hid_hw_close(wdata->hdev);
708}
709
1abb9ad3
DH		 710static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
711{
712 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT],
713 !!(payload[0] & 0x01));
714 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_RIGHT],
715 !!(payload[0] & 0x02));
716 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_DOWN],
717 !!(payload[0] & 0x04));
718 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_UP],
719 !!(payload[0] & 0x08));
720 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_PLUS],
721 !!(payload[0] & 0x10));
722 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_TWO],
723 !!(payload[1] & 0x01));
724 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_ONE],
725 !!(payload[1] & 0x02));
726 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_B],
727 !!(payload[1] & 0x04));
728 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_A],
729 !!(payload[1] & 0x08));
730 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_MINUS],
731 !!(payload[1] & 0x10));
732 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_HOME],
733 !!(payload[1] & 0x80));
734 input_sync(wdata->input);
735}
736
efcf9188
DH		 737static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
738{
739 __u16 x, y, z;
740
741 if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
742 return;
743
744 /*
745 * payload is: BB BB XX YY ZZ
746 * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
747 * contain the upper 8 bits of each value. The lower 2 bits are
748 * contained in the buttons data BB BB.
749 * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
750 * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
751 * accel value and bit 6 is the second bit of the Z value.
752 * The first bit of Y and Z values is not available and always set to 0.
753 * 0x200 is returned on no movement.
754 */
755
756 x = payload[2] << 2;
757 y = payload[3] << 2;
758 z = payload[4] << 2;
759
760 x |= (payload[0] >> 5) & 0x3;
761 y |= (payload[1] >> 4) & 0x2;
762 z |= (payload[1] >> 5) & 0x2;
763
764 input_report_abs(wdata->accel, ABS_RX, x - 0x200);
765 input_report_abs(wdata->accel, ABS_RY, y - 0x200);
766 input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
767 input_sync(wdata->accel);
768}
769
eac39e7e
DH		 770#define ir_to_input0(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
771 ABS_HAT0X, ABS_HAT0Y)
772#define ir_to_input1(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
773 ABS_HAT1X, ABS_HAT1Y)
774#define ir_to_input2(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
775 ABS_HAT2X, ABS_HAT2Y)
776#define ir_to_input3(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
777 ABS_HAT3X, ABS_HAT3Y)
778
779static void __ir_to_input(struct wiimote_data *wdata, const __u8 *ir,
780 bool packed, __u8 xid, __u8 yid)
781{
782 __u16 x, y;
783
784 if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
785 return;
786
787 /*
788 * Basic IR data is encoded into 3 bytes. The first two bytes are the
789 * upper 8 bit of the X/Y data, the 3rd byte contains the lower 2 bits
790 * of both.
791 * If data is packed, then the 3rd byte is put first and slightly
792 * reordered. This allows to interleave packed and non-packed data to
793 * have two IR sets in 5 bytes instead of 6.
794 * The resulting 10bit X/Y values are passed to the ABS_HATXY input dev.
795 */
796
797 if (packed) {
798 x = ir[1] << 2;
799 y = ir[2] << 2;
800
801 x |= ir[0] & 0x3;
802 y |= (ir[0] >> 2) & 0x3;
803 } else {
804 x = ir[0] << 2;
805 y = ir[1] << 2;
806
807 x |= (ir[2] >> 4) & 0x3;
808 y |= (ir[2] >> 6) & 0x3;
809 }
810
811 input_report_abs(wdata->ir, xid, x);
812 input_report_abs(wdata->ir, yid, y);
813}
efcf9188 814
c87019e4
DH		 815static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
816{
817 handler_keys(wdata, payload);
818
819 /* on status reports the drm is reset so we need to resend the drm */
820 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
e3979a91
DH		 821
822 if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0)) {
823 wdata->state.cmd_battery = payload[5];
824 wiimote_cmd_complete(wdata);
825 }
c87019e4
DH		 826}
827
be1ecd62
DH		 828static void handler_data(struct wiimote_data *wdata, const __u8 *payload)
829{
830 handler_keys(wdata, payload);
831}
832
c87019e4
DH		 833static void handler_return(struct wiimote_data *wdata, const __u8 *payload)
834{
835 __u8 err = payload[3];
836 __u8 cmd = payload[2];
837
838 handler_keys(wdata, payload);
839
33e84013
DH		 840 if (wiimote_cmd_pending(wdata, cmd, 0)) {
841 wdata->state.cmd_err = err;
842 wiimote_cmd_complete(wdata);
843 } else if (err) {
c87019e4
DH		 844 hid_warn(wdata->hdev, "Remote error %hhu on req %hhu\n", err,
845 cmd);
33e84013 846 }
c87019e4
DH		 847}
848
efcf9188
DH		 849static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
850{
851 handler_keys(wdata, payload);
852 handler_accel(wdata, payload);
853}
854
7336b9f9
DH		 855static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
856{
857 handler_keys(wdata, payload);
858}
859
efcf9188
DH		 860static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
861{
862 handler_keys(wdata, payload);
863 handler_accel(wdata, payload);
eac39e7e
DH		 864 ir_to_input0(wdata, &payload[5], false);
865 ir_to_input1(wdata, &payload[8], false);
866 ir_to_input2(wdata, &payload[11], false);
867 ir_to_input3(wdata, &payload[14], false);
868 input_sync(wdata->ir);
869}
870
7336b9f9
DH		 871static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
872{
873 handler_keys(wdata, payload);
874}
875
eac39e7e
DH		 876static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
877{
878 handler_keys(wdata, payload);
879 ir_to_input0(wdata, &payload[2], false);
880 ir_to_input1(wdata, &payload[4], true);
881 ir_to_input2(wdata, &payload[7], false);
882 ir_to_input3(wdata, &payload[9], true);
883 input_sync(wdata->ir);
efcf9188
DH		 884}
885
886static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload)
887{
888 handler_keys(wdata, payload);
889 handler_accel(wdata, payload);
890}
891
892static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
893{
894 handler_keys(wdata, payload);
895 handler_accel(wdata, payload);
eac39e7e
DH		 896 ir_to_input0(wdata, &payload[5], false);
897 ir_to_input1(wdata, &payload[7], true);
898 ir_to_input2(wdata, &payload[10], false);
899 ir_to_input3(wdata, &payload[12], true);
900 input_sync(wdata->ir);
efcf9188
DH		 901}
902
7336b9f9
DH		 903static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
904{
905}
906
efcf9188
DH		 907static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)
908{
909 handler_keys(wdata, payload);
910
911 wdata->state.accel_split[0] = payload[2];
912 wdata->state.accel_split[1] = (payload[0] >> 1) & (0x10 | 0x20);
913 wdata->state.accel_split[1] |= (payload[1] << 1) & (0x40 | 0x80);
eac39e7e
DH		 914
915 ir_to_input0(wdata, &payload[3], false);
916 ir_to_input1(wdata, &payload[12], false);
917 input_sync(wdata->ir);
efcf9188
DH		 918}
919
920static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload)
921{
922 __u8 buf[5];
923
924 handler_keys(wdata, payload);
925
926 wdata->state.accel_split[1] |= (payload[0] >> 5) & (0x01 | 0x02);
927 wdata->state.accel_split[1] |= (payload[1] >> 3) & (0x04 | 0x08);
928
929 buf[0] = 0;
930 buf[1] = 0;
931 buf[2] = wdata->state.accel_split[0];
932 buf[3] = payload[2];
933 buf[4] = wdata->state.accel_split[1];
934 handler_accel(wdata, buf);
eac39e7e
DH		 935
936 ir_to_input2(wdata, &payload[3], false);
937 ir_to_input3(wdata, &payload[12], false);
938 input_sync(wdata->ir);
efcf9188
DH		 939}
940
a4d19197
DH		 941struct wiiproto_handler {
942 __u8 id;
943 size_t size;
944 void (*func)(struct wiimote_data *wdata, const __u8 *payload);
945};
946
947static struct wiiproto_handler handlers[] = {
c87019e4 948 { .id = WIIPROTO_REQ_STATUS, .size = 6, .func = handler_status },
be1ecd62 949 { .id = WIIPROTO_REQ_DATA, .size = 21, .func = handler_data },
c87019e4 950 { .id = WIIPROTO_REQ_RETURN, .size = 4, .func = handler_return },
1abb9ad3 951 { .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys },
efcf9188 952 { .id = WIIPROTO_REQ_DRM_KA, .size = 5, .func = handler_drm_KA },
7336b9f9 953 { .id = WIIPROTO_REQ_DRM_KE, .size = 10, .func = handler_drm_KE },
efcf9188 954 { .id = WIIPROTO_REQ_DRM_KAI, .size = 17, .func = handler_drm_KAI },
7336b9f9 955 { .id = WIIPROTO_REQ_DRM_KEE, .size = 21, .func = handler_drm_KEE },
efcf9188 956 { .id = WIIPROTO_REQ_DRM_KAE, .size = 21, .func = handler_drm_KAE },
eac39e7e 957 { .id = WIIPROTO_REQ_DRM_KIE, .size = 21, .func = handler_drm_KIE },
efcf9188 958 { .id = WIIPROTO_REQ_DRM_KAIE, .size = 21, .func = handler_drm_KAIE },
7336b9f9 959 { .id = WIIPROTO_REQ_DRM_E, .size = 21, .func = handler_drm_E },
efcf9188
DH		 960 { .id = WIIPROTO_REQ_DRM_SKAI1, .size = 21, .func = handler_drm_SKAI1 },
961 { .id = WIIPROTO_REQ_DRM_SKAI2, .size = 21, .func = handler_drm_SKAI2 },
a4d19197
DH		 962 { .id = 0 }
963};
964
02fb72a0
DH		 965static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
966 u8 *raw_data, int size)
967{
4d36e975 968 struct wiimote_data *wdata = hid_get_drvdata(hdev);
a4d19197
DH		 969 struct wiiproto_handler *h;
970 int i;
32a0d9a5 971 unsigned long flags;
7336b9f9 972 bool handled = false;
4d36e975 973
02fb72a0
DH		 974 if (size < 1)
975 return -EINVAL;
976
32a0d9a5
DH		 977 spin_lock_irqsave(&wdata->state.lock, flags);
978
a4d19197
DH		 979 for (i = 0; handlers[i].id; ++i) {
980 h = &handlers[i];
7336b9f9 981 if (h->id == raw_data[0] && h->size < size) {
a4d19197 982 h->func(wdata, &raw_data[1]);
7336b9f9
DH		 983 handled = true;
984 }
a4d19197
DH		 985 }
986
7336b9f9
DH		 987 if (!handled)
988 hid_warn(hdev, "Unhandled report %hhu size %d\n", raw_data[0],
989 size);
990
32a0d9a5
DH		 991 spin_unlock_irqrestore(&wdata->state.lock, flags);
992
02fb72a0
DH		 993 return 0;
994}
995
23a5a4a3
DH		 996static void wiimote_leds_destroy(struct wiimote_data *wdata)
997{
998 int i;
999 struct led_classdev *led;
1000
1001 for (i = 0; i < 4; ++i) {
1002 if (wdata->leds[i]) {
1003 led = wdata->leds[i];
1004 wdata->leds[i] = NULL;
1005 led_classdev_unregister(led);
1006 kfree(led);
1007 }
1008 }
1009}
1010
1011static int wiimote_leds_create(struct wiimote_data *wdata)
1012{
1013 int i, ret;
1014 struct device *dev = &wdata->hdev->dev;
1015 size_t namesz = strlen(dev_name(dev)) + 9;
1016 struct led_classdev *led;
1017 char *name;
1018
1019 for (i = 0; i < 4; ++i) {
1020 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
1021 if (!led) {
1022 ret = -ENOMEM;
1023 goto err;
1024 }
1025 name = (void*)&led[1];
1026 snprintf(name, namesz, "%s:blue:p%d", dev_name(dev), i);
1027 led->name = name;
1028 led->brightness = 0;
1029 led->max_brightness = 1;
1030 led->brightness_get = wiimote_leds_get;
1031 led->brightness_set = wiimote_leds_set;
1032
1033 ret = led_classdev_register(dev, led);
1034 if (ret) {
1035 kfree(led);
1036 goto err;
1037 }
1038 wdata->leds[i] = led;
1039 }
1040
1041 return 0;
1042
1043err:
1044 wiimote_leds_destroy(wdata);
1045 return ret;
1046}
1047
e894d0e3
DH		 1048static struct wiimote_data *wiimote_create(struct hid_device *hdev)
1049{
1050 struct wiimote_data *wdata;
1abb9ad3 1051 int i;
e894d0e3
DH		 1052
1053 wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
1054 if (!wdata)
1055 return NULL;
1056
672bc4e0 1057 wdata->input = input_allocate_device();
98a558ae
DH		 1058 if (!wdata->input)
1059 goto err;
672bc4e0 1060
e894d0e3
DH		 1061 wdata->hdev = hdev;
1062 hid_set_drvdata(hdev, wdata);
1063
672bc4e0 1064 input_set_drvdata(wdata->input, wdata);
26af1748
DH		 1065 wdata->input->open = wiimote_input_open;
1066 wdata->input->close = wiimote_input_close;
672bc4e0
DH		 1067 wdata->input->dev.parent = &wdata->hdev->dev;
1068 wdata->input->id.bustype = wdata->hdev->bus;
1069 wdata->input->id.vendor = wdata->hdev->vendor;
1070 wdata->input->id.product = wdata->hdev->product;
1071 wdata->input->id.version = wdata->hdev->version;
1072 wdata->input->name = WIIMOTE_NAME;
1073
1abb9ad3
DH		 1074 set_bit(EV_KEY, wdata->input->evbit);
1075 for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
1076 set_bit(wiiproto_keymap[i], wdata->input->keybit);
1077
d020be92 1078 set_bit(FF_RUMBLE, wdata->input->ffbit);
98a558ae
DH		 1079 if (input_ff_create_memless(wdata->input, NULL, wiimote_ff_play))
1080 goto err_input;
1081
1082 wdata->accel = input_allocate_device();
1083 if (!wdata->accel)
1084 goto err_input;
1085
1086 input_set_drvdata(wdata->accel, wdata);
1087 wdata->accel->open = wiimote_accel_open;
1088 wdata->accel->close = wiimote_accel_close;
1089 wdata->accel->dev.parent = &wdata->hdev->dev;
1090 wdata->accel->id.bustype = wdata->hdev->bus;
1091 wdata->accel->id.vendor = wdata->hdev->vendor;
1092 wdata->accel->id.product = wdata->hdev->product;
1093 wdata->accel->id.version = wdata->hdev->version;
1094 wdata->accel->name = WIIMOTE_NAME " Accelerometer";
1095
1096 set_bit(EV_ABS, wdata->accel->evbit);
1097 set_bit(ABS_RX, wdata->accel->absbit);
1098 set_bit(ABS_RY, wdata->accel->absbit);
1099 set_bit(ABS_RZ, wdata->accel->absbit);
1100 input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
1101 input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
1102 input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
d020be92 1103
f363e4f6
DH		 1104 wdata->ir = input_allocate_device();
1105 if (!wdata->ir)
1106 goto err_ir;
1107
1108 input_set_drvdata(wdata->ir, wdata);
0370d7cb
DH		 1109 wdata->ir->open = wiimote_ir_open;
1110 wdata->ir->close = wiimote_ir_close;
f363e4f6
DH		 1111 wdata->ir->dev.parent = &wdata->hdev->dev;
1112 wdata->ir->id.bustype = wdata->hdev->bus;
1113 wdata->ir->id.vendor = wdata->hdev->vendor;
1114 wdata->ir->id.product = wdata->hdev->product;
1115 wdata->ir->id.version = wdata->hdev->version;
1116 wdata->ir->name = WIIMOTE_NAME " IR";
1117
1118 set_bit(EV_ABS, wdata->ir->evbit);
1119 set_bit(ABS_HAT0X, wdata->ir->absbit);
1120 set_bit(ABS_HAT0Y, wdata->ir->absbit);
1121 set_bit(ABS_HAT1X, wdata->ir->absbit);
1122 set_bit(ABS_HAT1Y, wdata->ir->absbit);
1123 set_bit(ABS_HAT2X, wdata->ir->absbit);
1124 set_bit(ABS_HAT2Y, wdata->ir->absbit);
1125 set_bit(ABS_HAT3X, wdata->ir->absbit);
1126 set_bit(ABS_HAT3Y, wdata->ir->absbit);
1127 input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
1128 input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
1129 input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
1130 input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
1131 input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
1132 input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
1133 input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
1134 input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
1135
23c063cb
DH		 1136 spin_lock_init(&wdata->qlock);
1137 INIT_WORK(&wdata->worker, wiimote_worker);
1138
32a0d9a5 1139 spin_lock_init(&wdata->state.lock);
29d28064
DH		 1140 init_completion(&wdata->state.ready);
1141 mutex_init(&wdata->state.sync);
32a0d9a5 1142
e894d0e3 1143 return wdata;
98a558ae 1144
f363e4f6
DH		 1145err_ir:
1146 input_free_device(wdata->accel);
98a558ae
DH		 1147err_input:
1148 input_free_device(wdata->input);
1149err:
1150 kfree(wdata);
1151 return NULL;
e894d0e3
DH		 1152}
1153
1154static void wiimote_destroy(struct wiimote_data *wdata)
1155{
23a5a4a3 1156 wiimote_leds_destroy(wdata);
3989ef6c 1157
98a558ae 1158 input_unregister_device(wdata->accel);
f363e4f6 1159 input_unregister_device(wdata->ir);
3989ef6c
DH		 1160 input_unregister_device(wdata->input);
1161 cancel_work_sync(&wdata->worker);
1162 hid_hw_stop(wdata->hdev);
1163
e894d0e3
DH		 1164 kfree(wdata);
1165}
1166
02fb72a0
DH		 1167static int wiimote_hid_probe(struct hid_device *hdev,
1168 const struct hid_device_id *id)
fb51b443 1169{
e894d0e3 1170 struct wiimote_data *wdata;
02fb72a0
DH		 1171 int ret;
1172
e894d0e3
DH		 1173 wdata = wiimote_create(hdev);
1174 if (!wdata) {
1175 hid_err(hdev, "Can't alloc device\n");
1176 return -ENOMEM;
1177 }
1178
02fb72a0
DH		 1179 ret = hid_parse(hdev);
1180 if (ret) {
1181 hid_err(hdev, "HID parse failed\n");
e894d0e3 1182 goto err;
02fb72a0
DH		 1183 }
1184
1185 ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
1186 if (ret) {
1187 hid_err(hdev, "HW start failed\n");
e894d0e3 1188 goto err;
02fb72a0
DH		 1189 }
1190
98a558ae 1191 ret = input_register_device(wdata->accel);
672bc4e0
DH		 1192 if (ret) {
1193 hid_err(hdev, "Cannot register input device\n");
1194 goto err_stop;
1195 }
1196
f363e4f6
DH		 1197 ret = input_register_device(wdata->ir);
1198 if (ret) {
1199 hid_err(hdev, "Cannot register input device\n");
1200 goto err_ir;
1201 }
1202
98a558ae
DH		 1203 ret = input_register_device(wdata->input);
1204 if (ret) {
1205 hid_err(hdev, "Cannot register input device\n");
1206 goto err_input;
1207 }
1208
23a5a4a3 1209 ret = wiimote_leds_create(wdata);
3989ef6c
DH		 1210 if (ret)
1211 goto err_free;
1212
02fb72a0 1213 hid_info(hdev, "New device registered\n");
32a0d9a5
DH		 1214
1215 /* by default set led1 after device initialization */
1216 spin_lock_irq(&wdata->state.lock);
db308346 1217 wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
32a0d9a5
DH		 1218 spin_unlock_irq(&wdata->state.lock);
1219
fb51b443 1220 return 0;
e894d0e3 1221
3989ef6c
DH		 1222err_free:
1223 wiimote_destroy(wdata);
1224 return ret;
1225
98a558ae 1226err_input:
f363e4f6
DH		 1227 input_unregister_device(wdata->ir);
1228 wdata->ir = NULL;
1229err_ir:
98a558ae
DH		 1230 input_unregister_device(wdata->accel);
1231 wdata->accel = NULL;
672bc4e0
DH		 1232err_stop:
1233 hid_hw_stop(hdev);
e894d0e3 1234err:
f363e4f6 1235 input_free_device(wdata->ir);
98a558ae 1236 input_free_device(wdata->accel);
672bc4e0 1237 input_free_device(wdata->input);
3989ef6c 1238 kfree(wdata);
e894d0e3 1239 return ret;
fb51b443
DH		 1240}
1241
02fb72a0
DH		 1242static void wiimote_hid_remove(struct hid_device *hdev)
1243{
e894d0e3
DH		 1244 struct wiimote_data *wdata = hid_get_drvdata(hdev);
1245
02fb72a0 1246 hid_info(hdev, "Device removed\n");
e894d0e3 1247 wiimote_destroy(wdata);
02fb72a0
DH		 1248}
1249
1250static const struct hid_device_id wiimote_hid_devices[] = {
1251 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
1252 USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1253 { }
1254};
1255MODULE_DEVICE_TABLE(hid, wiimote_hid_devices);
1256
1257static struct hid_driver wiimote_hid_driver = {
1258 .name = "wiimote",
1259 .id_table = wiimote_hid_devices,
1260 .probe = wiimote_hid_probe,
1261 .remove = wiimote_hid_remove,
1262 .raw_event = wiimote_hid_event,
1263};
1264
1265static int __init wiimote_init(void)
1266{
1267 int ret;
1268
1269 ret = hid_register_driver(&wiimote_hid_driver);
1270 if (ret)
1271 pr_err("Can't register wiimote hid driver\n");
1272
1273 return ret;
1274}
1275
fb51b443
DH		 1276static void __exit wiimote_exit(void)
1277{
02fb72a0 1278 hid_unregister_driver(&wiimote_hid_driver);
fb51b443
DH		 1279}
1280
1281module_init(wiimote_init);
1282module_exit(wiimote_exit);
1283MODULE_LICENSE("GPL");
1284MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
1285MODULE_DESCRIPTION(WIIMOTE_NAME " Device Driver");
1286MODULE_VERSION(WIIMOTE_VERSION);
Linux kernel - Deliverables
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