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David Herrmannfb51b442011-07-05 13:45:08 +02001/*
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
David Herrmann672bc4e2011-07-05 13:45:11 +020013#include <linux/device.h>
David Herrmann02fb72a2011-07-05 13:45:09 +020014#include <linux/hid.h>
David Herrmann672bc4e2011-07-05 13:45:11 +020015#include <linux/input.h>
David Herrmann23a5a4a2011-08-17 11:43:22 +020016#include <linux/leds.h>
David Herrmannfb51b442011-07-05 13:45:08 +020017#include <linux/module.h>
David Herrmann23c063c2011-07-05 13:45:14 +020018#include <linux/spinlock.h>
David Herrmann02fb72a2011-07-05 13:45:09 +020019#include "hid-ids.h"
David Herrmannfb51b442011-07-05 13:45:08 +020020
21#define WIIMOTE_VERSION "0.1"
22#define WIIMOTE_NAME "Nintendo Wii Remote"
David Herrmann23c063c2011-07-05 13:45:14 +020023#define WIIMOTE_BUFSIZE 32
24
25struct wiimote_buf {
26 __u8 data[HID_MAX_BUFFER_SIZE];
27 size_t size;
28};
David Herrmannfb51b442011-07-05 13:45:08 +020029
David Herrmann32a0d9a2011-07-05 13:45:18 +020030struct wiimote_state {
31 spinlock_t lock;
32 __u8 flags;
David Herrmannefcf9182011-09-06 13:50:29 +020033 __u8 accel_split[2];
David Herrmann32a0d9a2011-07-05 13:45:18 +020034};
35
David Herrmanne894d0e2011-07-05 13:45:10 +020036struct wiimote_data {
37 struct hid_device *hdev;
David Herrmann672bc4e2011-07-05 13:45:11 +020038 struct input_dev *input;
David Herrmann23a5a4a2011-08-17 11:43:22 +020039 struct led_classdev *leds[4];
David Herrmann98a558a2011-09-06 13:50:28 +020040 struct input_dev *accel;
David Herrmannf363e4f2011-09-06 13:50:30 +020041 struct input_dev *ir;
David Herrmann23c063c2011-07-05 13:45:14 +020042
43 spinlock_t qlock;
44 __u8 head;
45 __u8 tail;
46 struct wiimote_buf outq[WIIMOTE_BUFSIZE];
47 struct work_struct worker;
David Herrmann32a0d9a2011-07-05 13:45:18 +020048
49 struct wiimote_state state;
David Herrmanne894d0e2011-07-05 13:45:10 +020050};
51
David Herrmannc003ec22011-09-06 13:50:26 +020052#define WIIPROTO_FLAG_LED1 0x01
53#define WIIPROTO_FLAG_LED2 0x02
54#define WIIPROTO_FLAG_LED3 0x04
55#define WIIPROTO_FLAG_LED4 0x08
56#define WIIPROTO_FLAG_RUMBLE 0x10
David Herrmann98a558a2011-09-06 13:50:28 +020057#define WIIPROTO_FLAG_ACCEL 0x20
David Herrmannf363e4f2011-09-06 13:50:30 +020058#define WIIPROTO_FLAG_IR_BASIC 0x40
59#define WIIPROTO_FLAG_IR_EXT 0x80
60#define WIIPROTO_FLAG_IR_FULL 0xc0 /* IR_BASIC | IR_EXT */
David Herrmann32a0d9a2011-07-05 13:45:18 +020061#define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
62 WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
David Herrmannf363e4f2011-09-06 13:50:30 +020063#define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
64 WIIPROTO_FLAG_IR_FULL)
David Herrmanndb308342011-07-05 13:45:17 +020065
David Herrmann23a5a4a2011-08-17 11:43:22 +020066/* return flag for led \num */
67#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
68
David Herrmann1abb9ad2011-07-05 13:45:16 +020069enum wiiproto_reqs {
David Herrmann2cb5e4b2011-08-17 11:43:23 +020070 WIIPROTO_REQ_NULL = 0x0,
David Herrmannc003ec22011-09-06 13:50:26 +020071 WIIPROTO_REQ_RUMBLE = 0x10,
David Herrmanndb308342011-07-05 13:45:17 +020072 WIIPROTO_REQ_LED = 0x11,
David Herrmann2cb5e4b2011-08-17 11:43:23 +020073 WIIPROTO_REQ_DRM = 0x12,
David Herrmannc87019e2011-08-17 11:43:24 +020074 WIIPROTO_REQ_STATUS = 0x20,
75 WIIPROTO_REQ_RETURN = 0x22,
David Herrmann1abb9ad2011-07-05 13:45:16 +020076 WIIPROTO_REQ_DRM_K = 0x30,
David Herrmannefcf9182011-09-06 13:50:29 +020077 WIIPROTO_REQ_DRM_KA = 0x31,
David Herrmann7336b9f2011-09-06 13:50:32 +020078 WIIPROTO_REQ_DRM_KE = 0x32,
David Herrmannefcf9182011-09-06 13:50:29 +020079 WIIPROTO_REQ_DRM_KAI = 0x33,
David Herrmann7336b9f2011-09-06 13:50:32 +020080 WIIPROTO_REQ_DRM_KEE = 0x34,
David Herrmannefcf9182011-09-06 13:50:29 +020081 WIIPROTO_REQ_DRM_KAE = 0x35,
David Herrmannf363e4f2011-09-06 13:50:30 +020082 WIIPROTO_REQ_DRM_KIE = 0x36,
David Herrmannefcf9182011-09-06 13:50:29 +020083 WIIPROTO_REQ_DRM_KAIE = 0x37,
David Herrmann7336b9f2011-09-06 13:50:32 +020084 WIIPROTO_REQ_DRM_E = 0x3d,
David Herrmannefcf9182011-09-06 13:50:29 +020085 WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
86 WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
David Herrmann1abb9ad2011-07-05 13:45:16 +020087};
88
89enum wiiproto_keys {
90 WIIPROTO_KEY_LEFT,
91 WIIPROTO_KEY_RIGHT,
92 WIIPROTO_KEY_UP,
93 WIIPROTO_KEY_DOWN,
94 WIIPROTO_KEY_PLUS,
95 WIIPROTO_KEY_MINUS,
96 WIIPROTO_KEY_ONE,
97 WIIPROTO_KEY_TWO,
98 WIIPROTO_KEY_A,
99 WIIPROTO_KEY_B,
100 WIIPROTO_KEY_HOME,
101 WIIPROTO_KEY_COUNT
102};
103
104static __u16 wiiproto_keymap[] = {
105 KEY_LEFT, /* WIIPROTO_KEY_LEFT */
106 KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
107 KEY_UP, /* WIIPROTO_KEY_UP */
108 KEY_DOWN, /* WIIPROTO_KEY_DOWN */
109 KEY_NEXT, /* WIIPROTO_KEY_PLUS */
110 KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
111 BTN_1, /* WIIPROTO_KEY_ONE */
112 BTN_2, /* WIIPROTO_KEY_TWO */
113 BTN_A, /* WIIPROTO_KEY_A */
114 BTN_B, /* WIIPROTO_KEY_B */
115 BTN_MODE, /* WIIPROTO_KEY_HOME */
116};
117
David Herrmann0c218f12011-07-05 13:45:13 +0200118static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
119 size_t count)
120{
121 __u8 *buf;
122 ssize_t ret;
123
124 if (!hdev->hid_output_raw_report)
125 return -ENODEV;
126
127 buf = kmemdup(buffer, count, GFP_KERNEL);
128 if (!buf)
129 return -ENOMEM;
130
131 ret = hdev->hid_output_raw_report(hdev, buf, count, HID_OUTPUT_REPORT);
132
133 kfree(buf);
134 return ret;
135}
136
David Herrmann23c063c2011-07-05 13:45:14 +0200137static void wiimote_worker(struct work_struct *work)
138{
139 struct wiimote_data *wdata = container_of(work, struct wiimote_data,
140 worker);
141 unsigned long flags;
142
143 spin_lock_irqsave(&wdata->qlock, flags);
144
145 while (wdata->head != wdata->tail) {
146 spin_unlock_irqrestore(&wdata->qlock, flags);
147 wiimote_hid_send(wdata->hdev, wdata->outq[wdata->tail].data,
148 wdata->outq[wdata->tail].size);
149 spin_lock_irqsave(&wdata->qlock, flags);
150
151 wdata->tail = (wdata->tail + 1) % WIIMOTE_BUFSIZE;
152 }
153
154 spin_unlock_irqrestore(&wdata->qlock, flags);
155}
156
157static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer,
158 size_t count)
159{
160 unsigned long flags;
161 __u8 newhead;
162
163 if (count > HID_MAX_BUFFER_SIZE) {
164 hid_warn(wdata->hdev, "Sending too large output report\n");
165 return;
166 }
167
168 /*
169 * Copy new request into our output queue and check whether the
170 * queue is full. If it is full, discard this request.
171 * If it is empty we need to start a new worker that will
172 * send out the buffer to the hid device.
173 * If the queue is not empty, then there must be a worker
174 * that is currently sending out our buffer and this worker
175 * will reschedule itself until the queue is empty.
176 */
177
178 spin_lock_irqsave(&wdata->qlock, flags);
179
180 memcpy(wdata->outq[wdata->head].data, buffer, count);
181 wdata->outq[wdata->head].size = count;
182 newhead = (wdata->head + 1) % WIIMOTE_BUFSIZE;
183
184 if (wdata->head == wdata->tail) {
185 wdata->head = newhead;
186 schedule_work(&wdata->worker);
187 } else if (newhead != wdata->tail) {
188 wdata->head = newhead;
189 } else {
190 hid_warn(wdata->hdev, "Output queue is full");
191 }
192
193 spin_unlock_irqrestore(&wdata->qlock, flags);
194}
195
David Herrmannc003ec22011-09-06 13:50:26 +0200196/*
197 * This sets the rumble bit on the given output report if rumble is
198 * currently enabled.
199 * \cmd1 must point to the second byte in the output report => &cmd[1]
200 * This must be called on nearly every output report before passing it
201 * into the output queue!
202 */
203static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1)
204{
205 if (wdata->state.flags & WIIPROTO_FLAG_RUMBLE)
206 *cmd1 |= 0x01;
207}
208
209static void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble)
210{
211 __u8 cmd[2];
212
213 rumble = !!rumble;
214 if (rumble == !!(wdata->state.flags & WIIPROTO_FLAG_RUMBLE))
215 return;
216
217 if (rumble)
218 wdata->state.flags |= WIIPROTO_FLAG_RUMBLE;
219 else
220 wdata->state.flags &= ~WIIPROTO_FLAG_RUMBLE;
221
222 cmd[0] = WIIPROTO_REQ_RUMBLE;
223 cmd[1] = 0;
224
225 wiiproto_keep_rumble(wdata, &cmd[1]);
226 wiimote_queue(wdata, cmd, sizeof(cmd));
227}
228
David Herrmanndb308342011-07-05 13:45:17 +0200229static void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
230{
231 __u8 cmd[2];
232
David Herrmann32a0d9a2011-07-05 13:45:18 +0200233 leds &= WIIPROTO_FLAGS_LEDS;
234 if ((wdata->state.flags & WIIPROTO_FLAGS_LEDS) == leds)
235 return;
236 wdata->state.flags = (wdata->state.flags & ~WIIPROTO_FLAGS_LEDS) | leds;
237
David Herrmanndb308342011-07-05 13:45:17 +0200238 cmd[0] = WIIPROTO_REQ_LED;
239 cmd[1] = 0;
240
241 if (leds & WIIPROTO_FLAG_LED1)
242 cmd[1] |= 0x10;
243 if (leds & WIIPROTO_FLAG_LED2)
244 cmd[1] |= 0x20;
245 if (leds & WIIPROTO_FLAG_LED3)
246 cmd[1] |= 0x40;
247 if (leds & WIIPROTO_FLAG_LED4)
248 cmd[1] |= 0x80;
249
David Herrmannc003ec22011-09-06 13:50:26 +0200250 wiiproto_keep_rumble(wdata, &cmd[1]);
David Herrmanndb308342011-07-05 13:45:17 +0200251 wiimote_queue(wdata, cmd, sizeof(cmd));
252}
253
David Herrmann2cb5e4b2011-08-17 11:43:23 +0200254/*
255 * Check what peripherals of the wiimote are currently
256 * active and select a proper DRM that supports all of
257 * the requested data inputs.
258 */
259static __u8 select_drm(struct wiimote_data *wdata)
260{
David Herrmannf363e4f2011-09-06 13:50:30 +0200261 __u8 ir = wdata->state.flags & WIIPROTO_FLAGS_IR;
262
263 if (ir == WIIPROTO_FLAG_IR_BASIC) {
264 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
265 return WIIPROTO_REQ_DRM_KAIE;
266 else
267 return WIIPROTO_REQ_DRM_KIE;
268 } else if (ir == WIIPROTO_FLAG_IR_EXT) {
269 return WIIPROTO_REQ_DRM_KAI;
270 } else if (ir == WIIPROTO_FLAG_IR_FULL) {
271 return WIIPROTO_REQ_DRM_SKAI1;
272 } else {
273 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
274 return WIIPROTO_REQ_DRM_KA;
275 else
276 return WIIPROTO_REQ_DRM_K;
277 }
David Herrmann2cb5e4b2011-08-17 11:43:23 +0200278}
279
280static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
281{
282 __u8 cmd[3];
283
284 if (drm == WIIPROTO_REQ_NULL)
285 drm = select_drm(wdata);
286
287 cmd[0] = WIIPROTO_REQ_DRM;
288 cmd[1] = 0;
289 cmd[2] = drm;
290
David Herrmannc003ec22011-09-06 13:50:26 +0200291 wiiproto_keep_rumble(wdata, &cmd[1]);
David Herrmann2cb5e4b2011-08-17 11:43:23 +0200292 wiimote_queue(wdata, cmd, sizeof(cmd));
293}
294
David Herrmann98a558a2011-09-06 13:50:28 +0200295static void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel)
296{
297 accel = !!accel;
298 if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
299 return;
300
301 if (accel)
302 wdata->state.flags |= WIIPROTO_FLAG_ACCEL;
303 else
304 wdata->state.flags &= ~WIIPROTO_FLAG_ACCEL;
305
306 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
307}
308
David Herrmann23a5a4a2011-08-17 11:43:22 +0200309static enum led_brightness wiimote_leds_get(struct led_classdev *led_dev)
310{
311 struct wiimote_data *wdata;
312 struct device *dev = led_dev->dev->parent;
313 int i;
314 unsigned long flags;
315 bool value = false;
David Herrmann3c1c2fc2011-07-05 13:45:19 +0200316
David Herrmann23a5a4a2011-08-17 11:43:22 +0200317 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
318
319 for (i = 0; i < 4; ++i) {
320 if (wdata->leds[i] == led_dev) {
321 spin_lock_irqsave(&wdata->state.lock, flags);
322 value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
323 spin_unlock_irqrestore(&wdata->state.lock, flags);
324 break;
325 }
326 }
327
328 return value ? LED_FULL : LED_OFF;
329}
330
331static void wiimote_leds_set(struct led_classdev *led_dev,
332 enum led_brightness value)
333{
334 struct wiimote_data *wdata;
335 struct device *dev = led_dev->dev->parent;
336 int i;
337 unsigned long flags;
338 __u8 state, flag;
339
340 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
341
342 for (i = 0; i < 4; ++i) {
343 if (wdata->leds[i] == led_dev) {
344 flag = WIIPROTO_FLAG_LED(i + 1);
345 spin_lock_irqsave(&wdata->state.lock, flags);
346 state = wdata->state.flags;
347 if (value == LED_OFF)
348 wiiproto_req_leds(wdata, state & ~flag);
349 else
350 wiiproto_req_leds(wdata, state | flag);
351 spin_unlock_irqrestore(&wdata->state.lock, flags);
352 break;
353 }
354 }
355}
David Herrmann3c1c2fc2011-07-05 13:45:19 +0200356
David Herrmannd020be92011-09-06 13:50:27 +0200357static int wiimote_ff_play(struct input_dev *dev, void *data,
358 struct ff_effect *eff)
David Herrmann672bc4e2011-07-05 13:45:11 +0200359{
David Herrmannd020be92011-09-06 13:50:27 +0200360 struct wiimote_data *wdata = input_get_drvdata(dev);
361 __u8 value;
362 unsigned long flags;
363
364 /*
365 * The wiimote supports only a single rumble motor so if any magnitude
366 * is set to non-zero then we start the rumble motor. If both are set to
367 * zero, we stop the rumble motor.
368 */
369
370 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
371 value = 1;
372 else
373 value = 0;
374
375 spin_lock_irqsave(&wdata->state.lock, flags);
376 wiiproto_req_rumble(wdata, value);
377 spin_unlock_irqrestore(&wdata->state.lock, flags);
378
David Herrmann672bc4e2011-07-05 13:45:11 +0200379 return 0;
380}
381
David Herrmann26af1742011-08-17 11:43:21 +0200382static int wiimote_input_open(struct input_dev *dev)
383{
384 struct wiimote_data *wdata = input_get_drvdata(dev);
385
386 return hid_hw_open(wdata->hdev);
387}
388
389static void wiimote_input_close(struct input_dev *dev)
390{
391 struct wiimote_data *wdata = input_get_drvdata(dev);
392
393 hid_hw_close(wdata->hdev);
394}
395
David Herrmann98a558a2011-09-06 13:50:28 +0200396static int wiimote_accel_open(struct input_dev *dev)
397{
398 struct wiimote_data *wdata = input_get_drvdata(dev);
399 int ret;
400 unsigned long flags;
401
402 ret = hid_hw_open(wdata->hdev);
403 if (ret)
404 return ret;
405
406 spin_lock_irqsave(&wdata->state.lock, flags);
407 wiiproto_req_accel(wdata, true);
408 spin_unlock_irqrestore(&wdata->state.lock, flags);
409
410 return 0;
411}
412
413static void wiimote_accel_close(struct input_dev *dev)
414{
415 struct wiimote_data *wdata = input_get_drvdata(dev);
416 unsigned long flags;
417
418 spin_lock_irqsave(&wdata->state.lock, flags);
419 wiiproto_req_accel(wdata, false);
420 spin_unlock_irqrestore(&wdata->state.lock, flags);
421
422 hid_hw_close(wdata->hdev);
423}
424
David Herrmann1abb9ad2011-07-05 13:45:16 +0200425static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
426{
427 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT],
428 !!(payload[0] & 0x01));
429 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_RIGHT],
430 !!(payload[0] & 0x02));
431 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_DOWN],
432 !!(payload[0] & 0x04));
433 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_UP],
434 !!(payload[0] & 0x08));
435 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_PLUS],
436 !!(payload[0] & 0x10));
437 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_TWO],
438 !!(payload[1] & 0x01));
439 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_ONE],
440 !!(payload[1] & 0x02));
441 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_B],
442 !!(payload[1] & 0x04));
443 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_A],
444 !!(payload[1] & 0x08));
445 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_MINUS],
446 !!(payload[1] & 0x10));
447 input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_HOME],
448 !!(payload[1] & 0x80));
449 input_sync(wdata->input);
450}
451
David Herrmannefcf9182011-09-06 13:50:29 +0200452static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
453{
454 __u16 x, y, z;
455
456 if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
457 return;
458
459 /*
460 * payload is: BB BB XX YY ZZ
461 * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
462 * contain the upper 8 bits of each value. The lower 2 bits are
463 * contained in the buttons data BB BB.
464 * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
465 * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
466 * accel value and bit 6 is the second bit of the Z value.
467 * The first bit of Y and Z values is not available and always set to 0.
468 * 0x200 is returned on no movement.
469 */
470
471 x = payload[2] << 2;
472 y = payload[3] << 2;
473 z = payload[4] << 2;
474
475 x |= (payload[0] >> 5) & 0x3;
476 y |= (payload[1] >> 4) & 0x2;
477 z |= (payload[1] >> 5) & 0x2;
478
479 input_report_abs(wdata->accel, ABS_RX, x - 0x200);
480 input_report_abs(wdata->accel, ABS_RY, y - 0x200);
481 input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
482 input_sync(wdata->accel);
483}
484
David Herrmanneac39e72011-09-06 13:50:31 +0200485#define ir_to_input0(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
486 ABS_HAT0X, ABS_HAT0Y)
487#define ir_to_input1(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
488 ABS_HAT1X, ABS_HAT1Y)
489#define ir_to_input2(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
490 ABS_HAT2X, ABS_HAT2Y)
491#define ir_to_input3(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
492 ABS_HAT3X, ABS_HAT3Y)
493
494static void __ir_to_input(struct wiimote_data *wdata, const __u8 *ir,
495 bool packed, __u8 xid, __u8 yid)
496{
497 __u16 x, y;
498
499 if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
500 return;
501
502 /*
503 * Basic IR data is encoded into 3 bytes. The first two bytes are the
504 * upper 8 bit of the X/Y data, the 3rd byte contains the lower 2 bits
505 * of both.
506 * If data is packed, then the 3rd byte is put first and slightly
507 * reordered. This allows to interleave packed and non-packed data to
508 * have two IR sets in 5 bytes instead of 6.
509 * The resulting 10bit X/Y values are passed to the ABS_HATXY input dev.
510 */
511
512 if (packed) {
513 x = ir[1] << 2;
514 y = ir[2] << 2;
515
516 x |= ir[0] & 0x3;
517 y |= (ir[0] >> 2) & 0x3;
518 } else {
519 x = ir[0] << 2;
520 y = ir[1] << 2;
521
522 x |= (ir[2] >> 4) & 0x3;
523 y |= (ir[2] >> 6) & 0x3;
524 }
525
526 input_report_abs(wdata->ir, xid, x);
527 input_report_abs(wdata->ir, yid, y);
528}
David Herrmannefcf9182011-09-06 13:50:29 +0200529
David Herrmannc87019e2011-08-17 11:43:24 +0200530static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
531{
532 handler_keys(wdata, payload);
533
534 /* on status reports the drm is reset so we need to resend the drm */
535 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
536}
537
538static void handler_return(struct wiimote_data *wdata, const __u8 *payload)
539{
540 __u8 err = payload[3];
541 __u8 cmd = payload[2];
542
543 handler_keys(wdata, payload);
544
545 if (err)
546 hid_warn(wdata->hdev, "Remote error %hhu on req %hhu\n", err,
547 cmd);
548}
549
David Herrmannefcf9182011-09-06 13:50:29 +0200550static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
551{
552 handler_keys(wdata, payload);
553 handler_accel(wdata, payload);
554}
555
David Herrmann7336b9f2011-09-06 13:50:32 +0200556static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
557{
558 handler_keys(wdata, payload);
559}
560
David Herrmannefcf9182011-09-06 13:50:29 +0200561static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
562{
563 handler_keys(wdata, payload);
564 handler_accel(wdata, payload);
David Herrmanneac39e72011-09-06 13:50:31 +0200565 ir_to_input0(wdata, &payload[5], false);
566 ir_to_input1(wdata, &payload[8], false);
567 ir_to_input2(wdata, &payload[11], false);
568 ir_to_input3(wdata, &payload[14], false);
569 input_sync(wdata->ir);
570}
571
David Herrmann7336b9f2011-09-06 13:50:32 +0200572static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
573{
574 handler_keys(wdata, payload);
575}
576
David Herrmanneac39e72011-09-06 13:50:31 +0200577static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
578{
579 handler_keys(wdata, payload);
580 ir_to_input0(wdata, &payload[2], false);
581 ir_to_input1(wdata, &payload[4], true);
582 ir_to_input2(wdata, &payload[7], false);
583 ir_to_input3(wdata, &payload[9], true);
584 input_sync(wdata->ir);
David Herrmannefcf9182011-09-06 13:50:29 +0200585}
586
587static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload)
588{
589 handler_keys(wdata, payload);
590 handler_accel(wdata, payload);
591}
592
593static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
594{
595 handler_keys(wdata, payload);
596 handler_accel(wdata, payload);
David Herrmanneac39e72011-09-06 13:50:31 +0200597 ir_to_input0(wdata, &payload[5], false);
598 ir_to_input1(wdata, &payload[7], true);
599 ir_to_input2(wdata, &payload[10], false);
600 ir_to_input3(wdata, &payload[12], true);
601 input_sync(wdata->ir);
David Herrmannefcf9182011-09-06 13:50:29 +0200602}
603
David Herrmann7336b9f2011-09-06 13:50:32 +0200604static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
605{
606}
607
David Herrmannefcf9182011-09-06 13:50:29 +0200608static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)
609{
610 handler_keys(wdata, payload);
611
612 wdata->state.accel_split[0] = payload[2];
613 wdata->state.accel_split[1] = (payload[0] >> 1) & (0x10 | 0x20);
614 wdata->state.accel_split[1] |= (payload[1] << 1) & (0x40 | 0x80);
David Herrmanneac39e72011-09-06 13:50:31 +0200615
616 ir_to_input0(wdata, &payload[3], false);
617 ir_to_input1(wdata, &payload[12], false);
618 input_sync(wdata->ir);
David Herrmannefcf9182011-09-06 13:50:29 +0200619}
620
621static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload)
622{
623 __u8 buf[5];
624
625 handler_keys(wdata, payload);
626
627 wdata->state.accel_split[1] |= (payload[0] >> 5) & (0x01 | 0x02);
628 wdata->state.accel_split[1] |= (payload[1] >> 3) & (0x04 | 0x08);
629
630 buf[0] = 0;
631 buf[1] = 0;
632 buf[2] = wdata->state.accel_split[0];
633 buf[3] = payload[2];
634 buf[4] = wdata->state.accel_split[1];
635 handler_accel(wdata, buf);
David Herrmanneac39e72011-09-06 13:50:31 +0200636
637 ir_to_input2(wdata, &payload[3], false);
638 ir_to_input3(wdata, &payload[12], false);
639 input_sync(wdata->ir);
David Herrmannefcf9182011-09-06 13:50:29 +0200640}
641
David Herrmanna4d19192011-07-05 13:45:15 +0200642struct wiiproto_handler {
643 __u8 id;
644 size_t size;
645 void (*func)(struct wiimote_data *wdata, const __u8 *payload);
646};
647
648static struct wiiproto_handler handlers[] = {
David Herrmannc87019e2011-08-17 11:43:24 +0200649 { .id = WIIPROTO_REQ_STATUS, .size = 6, .func = handler_status },
650 { .id = WIIPROTO_REQ_RETURN, .size = 4, .func = handler_return },
David Herrmann1abb9ad2011-07-05 13:45:16 +0200651 { .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys },
David Herrmannefcf9182011-09-06 13:50:29 +0200652 { .id = WIIPROTO_REQ_DRM_KA, .size = 5, .func = handler_drm_KA },
David Herrmann7336b9f2011-09-06 13:50:32 +0200653 { .id = WIIPROTO_REQ_DRM_KE, .size = 10, .func = handler_drm_KE },
David Herrmannefcf9182011-09-06 13:50:29 +0200654 { .id = WIIPROTO_REQ_DRM_KAI, .size = 17, .func = handler_drm_KAI },
David Herrmann7336b9f2011-09-06 13:50:32 +0200655 { .id = WIIPROTO_REQ_DRM_KEE, .size = 21, .func = handler_drm_KEE },
David Herrmannefcf9182011-09-06 13:50:29 +0200656 { .id = WIIPROTO_REQ_DRM_KAE, .size = 21, .func = handler_drm_KAE },
David Herrmanneac39e72011-09-06 13:50:31 +0200657 { .id = WIIPROTO_REQ_DRM_KIE, .size = 21, .func = handler_drm_KIE },
David Herrmannefcf9182011-09-06 13:50:29 +0200658 { .id = WIIPROTO_REQ_DRM_KAIE, .size = 21, .func = handler_drm_KAIE },
David Herrmann7336b9f2011-09-06 13:50:32 +0200659 { .id = WIIPROTO_REQ_DRM_E, .size = 21, .func = handler_drm_E },
David Herrmannefcf9182011-09-06 13:50:29 +0200660 { .id = WIIPROTO_REQ_DRM_SKAI1, .size = 21, .func = handler_drm_SKAI1 },
661 { .id = WIIPROTO_REQ_DRM_SKAI2, .size = 21, .func = handler_drm_SKAI2 },
David Herrmanna4d19192011-07-05 13:45:15 +0200662 { .id = 0 }
663};
664
David Herrmann02fb72a2011-07-05 13:45:09 +0200665static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
666 u8 *raw_data, int size)
667{
David Herrmann4d36e972011-07-05 13:45:12 +0200668 struct wiimote_data *wdata = hid_get_drvdata(hdev);
David Herrmanna4d19192011-07-05 13:45:15 +0200669 struct wiiproto_handler *h;
670 int i;
David Herrmann32a0d9a2011-07-05 13:45:18 +0200671 unsigned long flags;
David Herrmann7336b9f2011-09-06 13:50:32 +0200672 bool handled = false;
David Herrmann4d36e972011-07-05 13:45:12 +0200673
David Herrmann02fb72a2011-07-05 13:45:09 +0200674 if (size < 1)
675 return -EINVAL;
676
David Herrmann32a0d9a2011-07-05 13:45:18 +0200677 spin_lock_irqsave(&wdata->state.lock, flags);
678
David Herrmanna4d19192011-07-05 13:45:15 +0200679 for (i = 0; handlers[i].id; ++i) {
680 h = &handlers[i];
David Herrmann7336b9f2011-09-06 13:50:32 +0200681 if (h->id == raw_data[0] && h->size < size) {
David Herrmanna4d19192011-07-05 13:45:15 +0200682 h->func(wdata, &raw_data[1]);
David Herrmann7336b9f2011-09-06 13:50:32 +0200683 handled = true;
684 }
David Herrmanna4d19192011-07-05 13:45:15 +0200685 }
686
David Herrmann7336b9f2011-09-06 13:50:32 +0200687 if (!handled)
688 hid_warn(hdev, "Unhandled report %hhu size %d\n", raw_data[0],
689 size);
690
David Herrmann32a0d9a2011-07-05 13:45:18 +0200691 spin_unlock_irqrestore(&wdata->state.lock, flags);
692
David Herrmann02fb72a2011-07-05 13:45:09 +0200693 return 0;
694}
695
David Herrmann23a5a4a2011-08-17 11:43:22 +0200696static void wiimote_leds_destroy(struct wiimote_data *wdata)
697{
698 int i;
699 struct led_classdev *led;
700
701 for (i = 0; i < 4; ++i) {
702 if (wdata->leds[i]) {
703 led = wdata->leds[i];
704 wdata->leds[i] = NULL;
705 led_classdev_unregister(led);
706 kfree(led);
707 }
708 }
709}
710
711static int wiimote_leds_create(struct wiimote_data *wdata)
712{
713 int i, ret;
714 struct device *dev = &wdata->hdev->dev;
715 size_t namesz = strlen(dev_name(dev)) + 9;
716 struct led_classdev *led;
717 char *name;
718
719 for (i = 0; i < 4; ++i) {
720 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
721 if (!led) {
722 ret = -ENOMEM;
723 goto err;
724 }
725 name = (void*)&led[1];
726 snprintf(name, namesz, "%s:blue:p%d", dev_name(dev), i);
727 led->name = name;
728 led->brightness = 0;
729 led->max_brightness = 1;
730 led->brightness_get = wiimote_leds_get;
731 led->brightness_set = wiimote_leds_set;
732
733 ret = led_classdev_register(dev, led);
734 if (ret) {
735 kfree(led);
736 goto err;
737 }
738 wdata->leds[i] = led;
739 }
740
741 return 0;
742
743err:
744 wiimote_leds_destroy(wdata);
745 return ret;
746}
747
David Herrmanne894d0e2011-07-05 13:45:10 +0200748static struct wiimote_data *wiimote_create(struct hid_device *hdev)
749{
750 struct wiimote_data *wdata;
David Herrmann1abb9ad2011-07-05 13:45:16 +0200751 int i;
David Herrmanne894d0e2011-07-05 13:45:10 +0200752
753 wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
754 if (!wdata)
755 return NULL;
756
David Herrmann672bc4e2011-07-05 13:45:11 +0200757 wdata->input = input_allocate_device();
David Herrmann98a558a2011-09-06 13:50:28 +0200758 if (!wdata->input)
759 goto err;
David Herrmann672bc4e2011-07-05 13:45:11 +0200760
David Herrmanne894d0e2011-07-05 13:45:10 +0200761 wdata->hdev = hdev;
762 hid_set_drvdata(hdev, wdata);
763
David Herrmann672bc4e2011-07-05 13:45:11 +0200764 input_set_drvdata(wdata->input, wdata);
David Herrmann26af1742011-08-17 11:43:21 +0200765 wdata->input->open = wiimote_input_open;
766 wdata->input->close = wiimote_input_close;
David Herrmann672bc4e2011-07-05 13:45:11 +0200767 wdata->input->dev.parent = &wdata->hdev->dev;
768 wdata->input->id.bustype = wdata->hdev->bus;
769 wdata->input->id.vendor = wdata->hdev->vendor;
770 wdata->input->id.product = wdata->hdev->product;
771 wdata->input->id.version = wdata->hdev->version;
772 wdata->input->name = WIIMOTE_NAME;
773
David Herrmann1abb9ad2011-07-05 13:45:16 +0200774 set_bit(EV_KEY, wdata->input->evbit);
775 for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
776 set_bit(wiiproto_keymap[i], wdata->input->keybit);
777
David Herrmannd020be92011-09-06 13:50:27 +0200778 set_bit(FF_RUMBLE, wdata->input->ffbit);
David Herrmann98a558a2011-09-06 13:50:28 +0200779 if (input_ff_create_memless(wdata->input, NULL, wiimote_ff_play))
780 goto err_input;
781
782 wdata->accel = input_allocate_device();
783 if (!wdata->accel)
784 goto err_input;
785
786 input_set_drvdata(wdata->accel, wdata);
787 wdata->accel->open = wiimote_accel_open;
788 wdata->accel->close = wiimote_accel_close;
789 wdata->accel->dev.parent = &wdata->hdev->dev;
790 wdata->accel->id.bustype = wdata->hdev->bus;
791 wdata->accel->id.vendor = wdata->hdev->vendor;
792 wdata->accel->id.product = wdata->hdev->product;
793 wdata->accel->id.version = wdata->hdev->version;
794 wdata->accel->name = WIIMOTE_NAME " Accelerometer";
795
796 set_bit(EV_ABS, wdata->accel->evbit);
797 set_bit(ABS_RX, wdata->accel->absbit);
798 set_bit(ABS_RY, wdata->accel->absbit);
799 set_bit(ABS_RZ, wdata->accel->absbit);
800 input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
801 input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
802 input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
David Herrmannd020be92011-09-06 13:50:27 +0200803
David Herrmannf363e4f2011-09-06 13:50:30 +0200804 wdata->ir = input_allocate_device();
805 if (!wdata->ir)
806 goto err_ir;
807
808 input_set_drvdata(wdata->ir, wdata);
809 wdata->ir->dev.parent = &wdata->hdev->dev;
810 wdata->ir->id.bustype = wdata->hdev->bus;
811 wdata->ir->id.vendor = wdata->hdev->vendor;
812 wdata->ir->id.product = wdata->hdev->product;
813 wdata->ir->id.version = wdata->hdev->version;
814 wdata->ir->name = WIIMOTE_NAME " IR";
815
816 set_bit(EV_ABS, wdata->ir->evbit);
817 set_bit(ABS_HAT0X, wdata->ir->absbit);
818 set_bit(ABS_HAT0Y, wdata->ir->absbit);
819 set_bit(ABS_HAT1X, wdata->ir->absbit);
820 set_bit(ABS_HAT1Y, wdata->ir->absbit);
821 set_bit(ABS_HAT2X, wdata->ir->absbit);
822 set_bit(ABS_HAT2Y, wdata->ir->absbit);
823 set_bit(ABS_HAT3X, wdata->ir->absbit);
824 set_bit(ABS_HAT3Y, wdata->ir->absbit);
825 input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
826 input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
827 input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
828 input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
829 input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
830 input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
831 input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
832 input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
833
David Herrmann23c063c2011-07-05 13:45:14 +0200834 spin_lock_init(&wdata->qlock);
835 INIT_WORK(&wdata->worker, wiimote_worker);
836
David Herrmann32a0d9a2011-07-05 13:45:18 +0200837 spin_lock_init(&wdata->state.lock);
838
David Herrmanne894d0e2011-07-05 13:45:10 +0200839 return wdata;
David Herrmann98a558a2011-09-06 13:50:28 +0200840
David Herrmannf363e4f2011-09-06 13:50:30 +0200841err_ir:
842 input_free_device(wdata->accel);
David Herrmann98a558a2011-09-06 13:50:28 +0200843err_input:
844 input_free_device(wdata->input);
845err:
846 kfree(wdata);
847 return NULL;
David Herrmanne894d0e2011-07-05 13:45:10 +0200848}
849
850static void wiimote_destroy(struct wiimote_data *wdata)
851{
David Herrmann23a5a4a2011-08-17 11:43:22 +0200852 wiimote_leds_destroy(wdata);
David Herrmann3989ef62011-08-17 11:43:20 +0200853
David Herrmann98a558a2011-09-06 13:50:28 +0200854 input_unregister_device(wdata->accel);
David Herrmannf363e4f2011-09-06 13:50:30 +0200855 input_unregister_device(wdata->ir);
David Herrmann3989ef62011-08-17 11:43:20 +0200856 input_unregister_device(wdata->input);
857 cancel_work_sync(&wdata->worker);
858 hid_hw_stop(wdata->hdev);
859
David Herrmanne894d0e2011-07-05 13:45:10 +0200860 kfree(wdata);
861}
862
David Herrmann02fb72a2011-07-05 13:45:09 +0200863static int wiimote_hid_probe(struct hid_device *hdev,
864 const struct hid_device_id *id)
865{
David Herrmanne894d0e2011-07-05 13:45:10 +0200866 struct wiimote_data *wdata;
David Herrmann02fb72a2011-07-05 13:45:09 +0200867 int ret;
868
David Herrmanne894d0e2011-07-05 13:45:10 +0200869 wdata = wiimote_create(hdev);
870 if (!wdata) {
871 hid_err(hdev, "Can't alloc device\n");
872 return -ENOMEM;
873 }
874
David Herrmann02fb72a2011-07-05 13:45:09 +0200875 ret = hid_parse(hdev);
876 if (ret) {
877 hid_err(hdev, "HID parse failed\n");
David Herrmanne894d0e2011-07-05 13:45:10 +0200878 goto err;
David Herrmann02fb72a2011-07-05 13:45:09 +0200879 }
880
881 ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
882 if (ret) {
883 hid_err(hdev, "HW start failed\n");
David Herrmanne894d0e2011-07-05 13:45:10 +0200884 goto err;
David Herrmann02fb72a2011-07-05 13:45:09 +0200885 }
886
David Herrmann98a558a2011-09-06 13:50:28 +0200887 ret = input_register_device(wdata->accel);
David Herrmann672bc4e2011-07-05 13:45:11 +0200888 if (ret) {
889 hid_err(hdev, "Cannot register input device\n");
890 goto err_stop;
891 }
892
David Herrmannf363e4f2011-09-06 13:50:30 +0200893 ret = input_register_device(wdata->ir);
894 if (ret) {
895 hid_err(hdev, "Cannot register input device\n");
896 goto err_ir;
897 }
898
David Herrmann98a558a2011-09-06 13:50:28 +0200899 ret = input_register_device(wdata->input);
900 if (ret) {
901 hid_err(hdev, "Cannot register input device\n");
902 goto err_input;
903 }
904
David Herrmann23a5a4a2011-08-17 11:43:22 +0200905 ret = wiimote_leds_create(wdata);
David Herrmann3989ef62011-08-17 11:43:20 +0200906 if (ret)
907 goto err_free;
908
David Herrmann02fb72a2011-07-05 13:45:09 +0200909 hid_info(hdev, "New device registered\n");
David Herrmann32a0d9a2011-07-05 13:45:18 +0200910
911 /* by default set led1 after device initialization */
912 spin_lock_irq(&wdata->state.lock);
David Herrmanndb308342011-07-05 13:45:17 +0200913 wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
David Herrmann32a0d9a2011-07-05 13:45:18 +0200914 spin_unlock_irq(&wdata->state.lock);
915
David Herrmann02fb72a2011-07-05 13:45:09 +0200916 return 0;
David Herrmanne894d0e2011-07-05 13:45:10 +0200917
David Herrmann3989ef62011-08-17 11:43:20 +0200918err_free:
919 wiimote_destroy(wdata);
920 return ret;
921
David Herrmann98a558a2011-09-06 13:50:28 +0200922err_input:
David Herrmannf363e4f2011-09-06 13:50:30 +0200923 input_unregister_device(wdata->ir);
924 wdata->ir = NULL;
925err_ir:
David Herrmann98a558a2011-09-06 13:50:28 +0200926 input_unregister_device(wdata->accel);
927 wdata->accel = NULL;
David Herrmann672bc4e2011-07-05 13:45:11 +0200928err_stop:
929 hid_hw_stop(hdev);
David Herrmanne894d0e2011-07-05 13:45:10 +0200930err:
David Herrmannf363e4f2011-09-06 13:50:30 +0200931 input_free_device(wdata->ir);
David Herrmann98a558a2011-09-06 13:50:28 +0200932 input_free_device(wdata->accel);
David Herrmann672bc4e2011-07-05 13:45:11 +0200933 input_free_device(wdata->input);
David Herrmann3989ef62011-08-17 11:43:20 +0200934 kfree(wdata);
David Herrmanne894d0e2011-07-05 13:45:10 +0200935 return ret;
David Herrmann02fb72a2011-07-05 13:45:09 +0200936}
937
938static void wiimote_hid_remove(struct hid_device *hdev)
939{
David Herrmanne894d0e2011-07-05 13:45:10 +0200940 struct wiimote_data *wdata = hid_get_drvdata(hdev);
941
David Herrmann02fb72a2011-07-05 13:45:09 +0200942 hid_info(hdev, "Device removed\n");
David Herrmanne894d0e2011-07-05 13:45:10 +0200943 wiimote_destroy(wdata);
David Herrmann02fb72a2011-07-05 13:45:09 +0200944}
945
946static const struct hid_device_id wiimote_hid_devices[] = {
947 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
948 USB_DEVICE_ID_NINTENDO_WIIMOTE) },
949 { }
950};
951MODULE_DEVICE_TABLE(hid, wiimote_hid_devices);
952
953static struct hid_driver wiimote_hid_driver = {
954 .name = "wiimote",
955 .id_table = wiimote_hid_devices,
956 .probe = wiimote_hid_probe,
957 .remove = wiimote_hid_remove,
958 .raw_event = wiimote_hid_event,
959};
960
David Herrmannfb51b442011-07-05 13:45:08 +0200961static int __init wiimote_init(void)
962{
David Herrmann02fb72a2011-07-05 13:45:09 +0200963 int ret;
964
965 ret = hid_register_driver(&wiimote_hid_driver);
966 if (ret)
967 pr_err("Can't register wiimote hid driver\n");
968
969 return ret;
David Herrmannfb51b442011-07-05 13:45:08 +0200970}
971
972static void __exit wiimote_exit(void)
973{
David Herrmann02fb72a2011-07-05 13:45:09 +0200974 hid_unregister_driver(&wiimote_hid_driver);
David Herrmannfb51b442011-07-05 13:45:08 +0200975}
976
977module_init(wiimote_init);
978module_exit(wiimote_exit);
979MODULE_LICENSE("GPL");
980MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
981MODULE_DESCRIPTION(WIIMOTE_NAME " Device Driver");
982MODULE_VERSION(WIIMOTE_VERSION);