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dm thin metadata: fix __udivdi3 undefined on 32-bit
[linux/fpc-iii.git] / drivers / hid / hid-wiimote-modules.c
blob05e23c417d500567546b99af2c09d582f330d67e
1 /*
2 * Device Modules for Nintendo Wii / Wii U HID Driver
3 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
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
13 /*
14 * Wiimote Modules
15 * Nintendo devices provide different peripherals and many new devices lack
16 * initial features like the IR camera. Therefore, each peripheral device is
17 * implemented as an independent module and we probe on each device only the
18 * modules for the hardware that really is available.
19 *
20 * Module registration is sequential. Unregistration is done in reverse order.
21 * After device detection, the needed modules are loaded. Users can trigger
22 * re-detection which causes all modules to be unloaded and then reload the
23 * modules for the new detected device.
24 *
25 * wdata->input is a shared input device. It is always initialized prior to
26 * module registration. If at least one registered module is marked as
27 * WIIMOD_FLAG_INPUT, then the input device will get registered after all
28 * modules were registered.
29 * Please note that it is unregistered _before_ the "remove" callbacks are
30 * called. This guarantees that no input interaction is done, anymore. However,
31 * the wiimote core keeps a reference to the input device so it is freed only
32 * after all modules were removed. It is safe to send events to unregistered
33 * input devices.
34 */
35
36 #include <linux/device.h>
37 #include <linux/hid.h>
38 #include <linux/input.h>
39 #include <linux/spinlock.h>
40 #include "hid-wiimote.h"
41
42 /*
43 * Keys
44 * The initial Wii Remote provided a bunch of buttons that are reported as
45 * part of the core protocol. Many later devices dropped these and report
46 * invalid data in the core button reports. Load this only on devices which
47 * correctly send button reports.
48 * It uses the shared input device.
49 */
50
51 static const __u16 wiimod_keys_map[] = {
52 KEY_LEFT, /* WIIPROTO_KEY_LEFT */
53 KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
54 KEY_UP, /* WIIPROTO_KEY_UP */
55 KEY_DOWN, /* WIIPROTO_KEY_DOWN */
56 KEY_NEXT, /* WIIPROTO_KEY_PLUS */
57 KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
58 BTN_1, /* WIIPROTO_KEY_ONE */
59 BTN_2, /* WIIPROTO_KEY_TWO */
60 BTN_A, /* WIIPROTO_KEY_A */
61 BTN_B, /* WIIPROTO_KEY_B */
62 BTN_MODE, /* WIIPROTO_KEY_HOME */
63 };
64
65 static void wiimod_keys_in_keys(struct wiimote_data *wdata, const __u8 *keys)
66 {
67 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_LEFT],
68 !!(keys[0] & 0x01));
69 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_RIGHT],
70 !!(keys[0] & 0x02));
71 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_DOWN],
72 !!(keys[0] & 0x04));
73 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_UP],
74 !!(keys[0] & 0x08));
75 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_PLUS],
76 !!(keys[0] & 0x10));
77 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_TWO],
78 !!(keys[1] & 0x01));
79 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_ONE],
80 !!(keys[1] & 0x02));
81 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_B],
82 !!(keys[1] & 0x04));
83 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_A],
84 !!(keys[1] & 0x08));
85 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_MINUS],
86 !!(keys[1] & 0x10));
87 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_HOME],
88 !!(keys[1] & 0x80));
89 input_sync(wdata->input);
90 }
91
92 static int wiimod_keys_probe(const struct wiimod_ops *ops,
93 struct wiimote_data *wdata)
94 {
95 unsigned int i;
96
97 set_bit(EV_KEY, wdata->input->evbit);
98 for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
99 set_bit(wiimod_keys_map[i], wdata->input->keybit);
100
101 return 0;
102 }
103
104 static const struct wiimod_ops wiimod_keys = {
105 .flags = WIIMOD_FLAG_INPUT,
106 .arg = 0,
107 .probe = wiimod_keys_probe,
108 .remove = NULL,
109 .in_keys = wiimod_keys_in_keys,
110 };
111
112 /*
113 * Rumble
114 * Nearly all devices provide a rumble feature. A small motor for
115 * force-feedback effects. We provide an FF_RUMBLE memless ff device on the
116 * shared input device if this module is loaded.
117 * The rumble motor is controlled via a flag on almost every output report so
118 * the wiimote core handles the rumble flag. But if a device doesn't provide
119 * the rumble motor, this flag shouldn't be set.
120 */
121
122 /* used by wiimod_rumble and wiipro_rumble */
123 static void wiimod_rumble_worker(struct work_struct *work)
124 {
125 struct wiimote_data *wdata = container_of(work, struct wiimote_data,
126 rumble_worker);
127
128 spin_lock_irq(&wdata->state.lock);
129 wiiproto_req_rumble(wdata, wdata->state.cache_rumble);
130 spin_unlock_irq(&wdata->state.lock);
131 }
132
133 static int wiimod_rumble_play(struct input_dev *dev, void *data,
134 struct ff_effect *eff)
135 {
136 struct wiimote_data *wdata = input_get_drvdata(dev);
137 __u8 value;
138
139 /*
140 * The wiimote supports only a single rumble motor so if any magnitude
141 * is set to non-zero then we start the rumble motor. If both are set to
142 * zero, we stop the rumble motor.
143 */
144
145 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
146 value = 1;
147 else
148 value = 0;
149
150 /* Locking state.lock here might deadlock with input_event() calls.
151 * schedule_work acts as barrier. Merging multiple changes is fine. */
152 wdata->state.cache_rumble = value;
153 schedule_work(&wdata->rumble_worker);
154
155 return 0;
156 }
157
158 static int wiimod_rumble_probe(const struct wiimod_ops *ops,
159 struct wiimote_data *wdata)
160 {
161 INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
162
163 set_bit(FF_RUMBLE, wdata->input->ffbit);
164 if (input_ff_create_memless(wdata->input, NULL, wiimod_rumble_play))
165 return -ENOMEM;
166
167 return 0;
168 }
169
170 static void wiimod_rumble_remove(const struct wiimod_ops *ops,
171 struct wiimote_data *wdata)
172 {
173 unsigned long flags;
174
175 cancel_work_sync(&wdata->rumble_worker);
176
177 spin_lock_irqsave(&wdata->state.lock, flags);
178 wiiproto_req_rumble(wdata, 0);
179 spin_unlock_irqrestore(&wdata->state.lock, flags);
180 }
181
182 static const struct wiimod_ops wiimod_rumble = {
183 .flags = WIIMOD_FLAG_INPUT,
184 .arg = 0,
185 .probe = wiimod_rumble_probe,
186 .remove = wiimod_rumble_remove,
187 };
188
189 /*
190 * Battery
191 * 1 byte of battery capacity information is sent along every protocol status
192 * report. The wiimote core caches it but we try to update it on every
193 * user-space request.
194 * This is supported by nearly every device so it's almost always enabled.
195 */
196
197 static enum power_supply_property wiimod_battery_props[] = {
198 POWER_SUPPLY_PROP_CAPACITY,
199 POWER_SUPPLY_PROP_SCOPE,
200 };
201
202 static int wiimod_battery_get_property(struct power_supply *psy,
203 enum power_supply_property psp,
204 union power_supply_propval *val)
205 {
206 struct wiimote_data *wdata = power_supply_get_drvdata(psy);
207 int ret = 0, state;
208 unsigned long flags;
209
210 if (psp == POWER_SUPPLY_PROP_SCOPE) {
211 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
212 return 0;
213 } else if (psp != POWER_SUPPLY_PROP_CAPACITY) {
214 return -EINVAL;
215 }
216
217 ret = wiimote_cmd_acquire(wdata);
218 if (ret)
219 return ret;
220
221 spin_lock_irqsave(&wdata->state.lock, flags);
222 wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
223 wiiproto_req_status(wdata);
224 spin_unlock_irqrestore(&wdata->state.lock, flags);
225
226 wiimote_cmd_wait(wdata);
227 wiimote_cmd_release(wdata);
228
229 spin_lock_irqsave(&wdata->state.lock, flags);
230 state = wdata->state.cmd_battery;
231 spin_unlock_irqrestore(&wdata->state.lock, flags);
232
233 val->intval = state * 100 / 255;
234 return ret;
235 }
236
237 static int wiimod_battery_probe(const struct wiimod_ops *ops,
238 struct wiimote_data *wdata)
239 {
240 struct power_supply_config psy_cfg = { .drv_data = wdata, };
241 int ret;
242
243 wdata->battery_desc.properties = wiimod_battery_props;
244 wdata->battery_desc.num_properties = ARRAY_SIZE(wiimod_battery_props);
245 wdata->battery_desc.get_property = wiimod_battery_get_property;
246 wdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
247 wdata->battery_desc.use_for_apm = 0;
248 wdata->battery_desc.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
249 wdata->hdev->uniq);
250 if (!wdata->battery_desc.name)
251 return -ENOMEM;
252
253 wdata->battery = power_supply_register(&wdata->hdev->dev,
254 &wdata->battery_desc,
255 &psy_cfg);
256 if (IS_ERR(wdata->battery)) {
257 hid_err(wdata->hdev, "cannot register battery device\n");
258 ret = PTR_ERR(wdata->battery);
259 goto err_free;
260 }
261
262 power_supply_powers(wdata->battery, &wdata->hdev->dev);
263 return 0;
264
265 err_free:
266 kfree(wdata->battery_desc.name);
267 wdata->battery_desc.name = NULL;
268 return ret;
269 }
270
271 static void wiimod_battery_remove(const struct wiimod_ops *ops,
272 struct wiimote_data *wdata)
273 {
274 if (!wdata->battery_desc.name)
275 return;
276
277 power_supply_unregister(wdata->battery);
278 kfree(wdata->battery_desc.name);
279 wdata->battery_desc.name = NULL;
280 }
281
282 static const struct wiimod_ops wiimod_battery = {
283 .flags = 0,
284 .arg = 0,
285 .probe = wiimod_battery_probe,
286 .remove = wiimod_battery_remove,
287 };
288
289 /*
290 * LED
291 * 0 to 4 player LEDs are supported by devices. The "arg" field of the
292 * wiimod_ops structure specifies which LED this module controls. This allows
293 * to register a limited number of LEDs.
294 * State is managed by wiimote core.
295 */
296
297 static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
298 {
299 struct wiimote_data *wdata;
300 struct device *dev = led_dev->dev->parent;
301 int i;
302 unsigned long flags;
303 bool value = false;
304
305 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
306
307 for (i = 0; i < 4; ++i) {
308 if (wdata->leds[i] == led_dev) {
309 spin_lock_irqsave(&wdata->state.lock, flags);
310 value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
311 spin_unlock_irqrestore(&wdata->state.lock, flags);
312 break;
313 }
314 }
315
316 return value ? LED_FULL : LED_OFF;
317 }
318
319 static void wiimod_led_set(struct led_classdev *led_dev,
320 enum led_brightness value)
321 {
322 struct wiimote_data *wdata;
323 struct device *dev = led_dev->dev->parent;
324 int i;
325 unsigned long flags;
326 __u8 state, flag;
327
328 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
329
330 for (i = 0; i < 4; ++i) {
331 if (wdata->leds[i] == led_dev) {
332 flag = WIIPROTO_FLAG_LED(i + 1);
333 spin_lock_irqsave(&wdata->state.lock, flags);
334 state = wdata->state.flags;
335 if (value == LED_OFF)
336 wiiproto_req_leds(wdata, state & ~flag);
337 else
338 wiiproto_req_leds(wdata, state | flag);
339 spin_unlock_irqrestore(&wdata->state.lock, flags);
340 break;
341 }
342 }
343 }
344
345 static int wiimod_led_probe(const struct wiimod_ops *ops,
346 struct wiimote_data *wdata)
347 {
348 struct device *dev = &wdata->hdev->dev;
349 size_t namesz = strlen(dev_name(dev)) + 9;
350 struct led_classdev *led;
351 unsigned long flags;
352 char *name;
353 int ret;
354
355 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
356 if (!led)
357 return -ENOMEM;
358
359 name = (void*)&led[1];
360 snprintf(name, namesz, "%s:blue:p%lu", dev_name(dev), ops->arg);
361 led->name = name;
362 led->brightness = 0;
363 led->max_brightness = 1;
364 led->brightness_get = wiimod_led_get;
365 led->brightness_set = wiimod_led_set;
366
367 wdata->leds[ops->arg] = led;
368 ret = led_classdev_register(dev, led);
369 if (ret)
370 goto err_free;
371
372 /* enable LED1 to stop initial LED-blinking */
373 if (ops->arg == 0) {
374 spin_lock_irqsave(&wdata->state.lock, flags);
375 wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
376 spin_unlock_irqrestore(&wdata->state.lock, flags);
377 }
378
379 return 0;
380
381 err_free:
382 wdata->leds[ops->arg] = NULL;
383 kfree(led);
384 return ret;
385 }
386
387 static void wiimod_led_remove(const struct wiimod_ops *ops,
388 struct wiimote_data *wdata)
389 {
390 if (!wdata->leds[ops->arg])
391 return;
392
393 led_classdev_unregister(wdata->leds[ops->arg]);
394 kfree(wdata->leds[ops->arg]);
395 wdata->leds[ops->arg] = NULL;
396 }
397
398 static const struct wiimod_ops wiimod_leds[4] = {
399 {
400 .flags = 0,
401 .arg = 0,
402 .probe = wiimod_led_probe,
403 .remove = wiimod_led_remove,
404 },
405 {
406 .flags = 0,
407 .arg = 1,
408 .probe = wiimod_led_probe,
409 .remove = wiimod_led_remove,
410 },
411 {
412 .flags = 0,
413 .arg = 2,
414 .probe = wiimod_led_probe,
415 .remove = wiimod_led_remove,
416 },
417 {
418 .flags = 0,
419 .arg = 3,
420 .probe = wiimod_led_probe,
421 .remove = wiimod_led_remove,
422 },
423 };
424
425 /*
426 * Accelerometer
427 * 3 axis accelerometer data is part of nearly all DRMs. If not supported by a
428 * device, it's mostly cleared to 0. This module parses this data and provides
429 * it via a separate input device.
430 */
431
432 static void wiimod_accel_in_accel(struct wiimote_data *wdata,
433 const __u8 *accel)
434 {
435 __u16 x, y, z;
436
437 if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
438 return;
439
440 /*
441 * payload is: BB BB XX YY ZZ
442 * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
443 * contain the upper 8 bits of each value. The lower 2 bits are
444 * contained in the buttons data BB BB.
445 * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
446 * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
447 * accel value and bit 6 is the second bit of the Z value.
448 * The first bit of Y and Z values is not available and always set to 0.
449 * 0x200 is returned on no movement.
450 */
451
452 x = accel[2] << 2;
453 y = accel[3] << 2;
454 z = accel[4] << 2;
455
456 x |= (accel[0] >> 5) & 0x3;
457 y |= (accel[1] >> 4) & 0x2;
458 z |= (accel[1] >> 5) & 0x2;
459
460 input_report_abs(wdata->accel, ABS_RX, x - 0x200);
461 input_report_abs(wdata->accel, ABS_RY, y - 0x200);
462 input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
463 input_sync(wdata->accel);
464 }
465
466 static int wiimod_accel_open(struct input_dev *dev)
467 {
468 struct wiimote_data *wdata = input_get_drvdata(dev);
469 unsigned long flags;
470
471 spin_lock_irqsave(&wdata->state.lock, flags);
472 wiiproto_req_accel(wdata, true);
473 spin_unlock_irqrestore(&wdata->state.lock, flags);
474
475 return 0;
476 }
477
478 static void wiimod_accel_close(struct input_dev *dev)
479 {
480 struct wiimote_data *wdata = input_get_drvdata(dev);
481 unsigned long flags;
482
483 spin_lock_irqsave(&wdata->state.lock, flags);
484 wiiproto_req_accel(wdata, false);
485 spin_unlock_irqrestore(&wdata->state.lock, flags);
486 }
487
488 static int wiimod_accel_probe(const struct wiimod_ops *ops,
489 struct wiimote_data *wdata)
490 {
491 int ret;
492
493 wdata->accel = input_allocate_device();
494 if (!wdata->accel)
495 return -ENOMEM;
496
497 input_set_drvdata(wdata->accel, wdata);
498 wdata->accel->open = wiimod_accel_open;
499 wdata->accel->close = wiimod_accel_close;
500 wdata->accel->dev.parent = &wdata->hdev->dev;
501 wdata->accel->id.bustype = wdata->hdev->bus;
502 wdata->accel->id.vendor = wdata->hdev->vendor;
503 wdata->accel->id.product = wdata->hdev->product;
504 wdata->accel->id.version = wdata->hdev->version;
505 wdata->accel->name = WIIMOTE_NAME " Accelerometer";
506
507 set_bit(EV_ABS, wdata->accel->evbit);
508 set_bit(ABS_RX, wdata->accel->absbit);
509 set_bit(ABS_RY, wdata->accel->absbit);
510 set_bit(ABS_RZ, wdata->accel->absbit);
511 input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
512 input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
513 input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
514
515 ret = input_register_device(wdata->accel);
516 if (ret) {
517 hid_err(wdata->hdev, "cannot register input device\n");
518 goto err_free;
519 }
520
521 return 0;
522
523 err_free:
524 input_free_device(wdata->accel);
525 wdata->accel = NULL;
526 return ret;
527 }
528
529 static void wiimod_accel_remove(const struct wiimod_ops *ops,
530 struct wiimote_data *wdata)
531 {
532 if (!wdata->accel)
533 return;
534
535 input_unregister_device(wdata->accel);
536 wdata->accel = NULL;
537 }
538
539 static const struct wiimod_ops wiimod_accel = {
540 .flags = 0,
541 .arg = 0,
542 .probe = wiimod_accel_probe,
543 .remove = wiimod_accel_remove,
544 .in_accel = wiimod_accel_in_accel,
545 };
546
547 /*
548 * IR Cam
549 * Up to 4 IR sources can be tracked by a normal Wii Remote. The IR cam needs
550 * to be initialized with a fairly complex procedure and consumes a lot of
551 * power. Therefore, as long as no application uses the IR input device, it is
552 * kept offline.
553 * Nearly no other device than the normal Wii Remotes supports the IR cam so
554 * you can disable this module for these devices.
555 */
556
557 static void wiimod_ir_in_ir(struct wiimote_data *wdata, const __u8 *ir,
558 bool packed, unsigned int id)
559 {
560 __u16 x, y;
561 __u8 xid, yid;
562 bool sync = false;
563
564 if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
565 return;
566
567 switch (id) {
568 case 0:
569 xid = ABS_HAT0X;
570 yid = ABS_HAT0Y;
571 break;
572 case 1:
573 xid = ABS_HAT1X;
574 yid = ABS_HAT1Y;
575 break;
576 case 2:
577 xid = ABS_HAT2X;
578 yid = ABS_HAT2Y;
579 break;
580 case 3:
581 xid = ABS_HAT3X;
582 yid = ABS_HAT3Y;
583 sync = true;
584 break;
585 default:
586 return;
587 }
588
589 /*
590 * Basic IR data is encoded into 3 bytes. The first two bytes are the
591 * lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
592 * of both.
593 * If data is packed, then the 3rd byte is put first and slightly
594 * reordered. This allows to interleave packed and non-packed data to
595 * have two IR sets in 5 bytes instead of 6.
596 * The resulting 10bit X/Y values are passed to the ABS_HAT? input dev.
597 */
598
599 if (packed) {
600 x = ir[1] | ((ir[0] & 0x03) << 8);
601 y = ir[2] | ((ir[0] & 0x0c) << 6);
602 } else {
603 x = ir[0] | ((ir[2] & 0x30) << 4);
604 y = ir[1] | ((ir[2] & 0xc0) << 2);
605 }
606
607 input_report_abs(wdata->ir, xid, x);
608 input_report_abs(wdata->ir, yid, y);
609
610 if (sync)
611 input_sync(wdata->ir);
612 }
613
614 static int wiimod_ir_change(struct wiimote_data *wdata, __u16 mode)
615 {
616 int ret;
617 unsigned long flags;
618 __u8 format = 0;
619 static const __u8 data_enable[] = { 0x01 };
620 static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
621 0x00, 0xaa, 0x00, 0x64 };
622 static const __u8 data_sens2[] = { 0x63, 0x03 };
623 static const __u8 data_fin[] = { 0x08 };
624
625 spin_lock_irqsave(&wdata->state.lock, flags);
626
627 if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
628 spin_unlock_irqrestore(&wdata->state.lock, flags);
629 return 0;
630 }
631
632 if (mode == 0) {
633 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
634 wiiproto_req_ir1(wdata, 0);
635 wiiproto_req_ir2(wdata, 0);
636 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
637 spin_unlock_irqrestore(&wdata->state.lock, flags);
638 return 0;
639 }
640
641 spin_unlock_irqrestore(&wdata->state.lock, flags);
642
643 ret = wiimote_cmd_acquire(wdata);
644 if (ret)
645 return ret;
646
647 /* send PIXEL CLOCK ENABLE cmd first */
648 spin_lock_irqsave(&wdata->state.lock, flags);
649 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
650 wiiproto_req_ir1(wdata, 0x06);
651 spin_unlock_irqrestore(&wdata->state.lock, flags);
652
653 ret = wiimote_cmd_wait(wdata);
654 if (ret)
655 goto unlock;
656 if (wdata->state.cmd_err) {
657 ret = -EIO;
658 goto unlock;
659 }
660
661 /* enable IR LOGIC */
662 spin_lock_irqsave(&wdata->state.lock, flags);
663 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
664 wiiproto_req_ir2(wdata, 0x06);
665 spin_unlock_irqrestore(&wdata->state.lock, flags);
666
667 ret = wiimote_cmd_wait(wdata);
668 if (ret)
669 goto unlock;
670 if (wdata->state.cmd_err) {
671 ret = -EIO;
672 goto unlock;
673 }
674
675 /* enable IR cam but do not make it send data, yet */
676 ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
677 sizeof(data_enable));
678 if (ret)
679 goto unlock;
680
681 /* write first sensitivity block */
682 ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
683 sizeof(data_sens1));
684 if (ret)
685 goto unlock;
686
687 /* write second sensitivity block */
688 ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
689 sizeof(data_sens2));
690 if (ret)
691 goto unlock;
692
693 /* put IR cam into desired state */
694 switch (mode) {
695 case WIIPROTO_FLAG_IR_FULL:
696 format = 5;
697 break;
698 case WIIPROTO_FLAG_IR_EXT:
699 format = 3;
700 break;
701 case WIIPROTO_FLAG_IR_BASIC:
702 format = 1;
703 break;
704 }
705 ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
706 if (ret)
707 goto unlock;
708
709 /* make IR cam send data */
710 ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
711 if (ret)
712 goto unlock;
713
714 /* request new DRM mode compatible to IR mode */
715 spin_lock_irqsave(&wdata->state.lock, flags);
716 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
717 wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
718 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
719 spin_unlock_irqrestore(&wdata->state.lock, flags);
720
721 unlock:
722 wiimote_cmd_release(wdata);
723 return ret;
724 }
725
726 static int wiimod_ir_open(struct input_dev *dev)
727 {
728 struct wiimote_data *wdata = input_get_drvdata(dev);
729
730 return wiimod_ir_change(wdata, WIIPROTO_FLAG_IR_BASIC);
731 }
732
733 static void wiimod_ir_close(struct input_dev *dev)
734 {
735 struct wiimote_data *wdata = input_get_drvdata(dev);
736
737 wiimod_ir_change(wdata, 0);
738 }
739
740 static int wiimod_ir_probe(const struct wiimod_ops *ops,
741 struct wiimote_data *wdata)
742 {
743 int ret;
744
745 wdata->ir = input_allocate_device();
746 if (!wdata->ir)
747 return -ENOMEM;
748
749 input_set_drvdata(wdata->ir, wdata);
750 wdata->ir->open = wiimod_ir_open;
751 wdata->ir->close = wiimod_ir_close;
752 wdata->ir->dev.parent = &wdata->hdev->dev;
753 wdata->ir->id.bustype = wdata->hdev->bus;
754 wdata->ir->id.vendor = wdata->hdev->vendor;
755 wdata->ir->id.product = wdata->hdev->product;
756 wdata->ir->id.version = wdata->hdev->version;
757 wdata->ir->name = WIIMOTE_NAME " IR";
758
759 set_bit(EV_ABS, wdata->ir->evbit);
760 set_bit(ABS_HAT0X, wdata->ir->absbit);
761 set_bit(ABS_HAT0Y, wdata->ir->absbit);
762 set_bit(ABS_HAT1X, wdata->ir->absbit);
763 set_bit(ABS_HAT1Y, wdata->ir->absbit);
764 set_bit(ABS_HAT2X, wdata->ir->absbit);
765 set_bit(ABS_HAT2Y, wdata->ir->absbit);
766 set_bit(ABS_HAT3X, wdata->ir->absbit);
767 set_bit(ABS_HAT3Y, wdata->ir->absbit);
768 input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
769 input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
770 input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
771 input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
772 input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
773 input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
774 input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
775 input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
776
777 ret = input_register_device(wdata->ir);
778 if (ret) {
779 hid_err(wdata->hdev, "cannot register input device\n");
780 goto err_free;
781 }
782
783 return 0;
784
785 err_free:
786 input_free_device(wdata->ir);
787 wdata->ir = NULL;
788 return ret;
789 }
790
791 static void wiimod_ir_remove(const struct wiimod_ops *ops,
792 struct wiimote_data *wdata)
793 {
794 if (!wdata->ir)
795 return;
796
797 input_unregister_device(wdata->ir);
798 wdata->ir = NULL;
799 }
800
801 static const struct wiimod_ops wiimod_ir = {
802 .flags = 0,
803 .arg = 0,
804 .probe = wiimod_ir_probe,
805 .remove = wiimod_ir_remove,
806 .in_ir = wiimod_ir_in_ir,
807 };
808
809 /*
810 * Nunchuk Extension
811 * The Nintendo Wii Nunchuk was the first official extension published by
812 * Nintendo. It provides two additional keys and a separate accelerometer. It
813 * can be hotplugged to standard Wii Remotes.
814 */
815
816 enum wiimod_nunchuk_keys {
817 WIIMOD_NUNCHUK_KEY_C,
818 WIIMOD_NUNCHUK_KEY_Z,
819 WIIMOD_NUNCHUK_KEY_NUM,
820 };
821
822 static const __u16 wiimod_nunchuk_map[] = {
823 BTN_C, /* WIIMOD_NUNCHUK_KEY_C */
824 BTN_Z, /* WIIMOD_NUNCHUK_KEY_Z */
825 };
826
827 static void wiimod_nunchuk_in_ext(struct wiimote_data *wdata, const __u8 *ext)
828 {
829 __s16 x, y, z, bx, by;
830
831 /* Byte | 8 7 | 6 5 | 4 3 | 2 | 1 |
832 * -----+----------+---------+---------+----+-----+
833 * 1 | Button X <7:0> |
834 * 2 | Button Y <7:0> |
835 * -----+----------+---------+---------+----+-----+
836 * 3 | Speed X <9:2> |
837 * 4 | Speed Y <9:2> |
838 * 5 | Speed Z <9:2> |
839 * -----+----------+---------+---------+----+-----+
840 * 6 | Z <1:0> | Y <1:0> | X <1:0> | BC | BZ |
841 * -----+----------+---------+---------+----+-----+
842 * Button X/Y is the analog stick. Speed X, Y and Z are the
843 * accelerometer data in the same format as the wiimote's accelerometer.
844 * The 6th byte contains the LSBs of the accelerometer data.
845 * BC and BZ are the C and Z buttons: 0 means pressed
846 *
847 * If reported interleaved with motionp, then the layout changes. The
848 * 5th and 6th byte changes to:
849 * -----+-----------------------------------+-----+
850 * 5 | Speed Z <9:3> | EXT |
851 * -----+--------+-----+-----+----+----+----+-----+
852 * 6 |Z <2:1> |Y <1>|X <1>| BC | BZ | 0 | 0 |
853 * -----+--------+-----+-----+----+----+----+-----+
854 * All three accelerometer values lose their LSB. The other data is
855 * still available but slightly moved.
856 *
857 * Center data for button values is 128. Center value for accelerometer
858 * values it 512 / 0x200
859 */
860
861 bx = ext[0];
862 by = ext[1];
863 bx -= 128;
864 by -= 128;
865
866 x = ext[2] << 2;
867 y = ext[3] << 2;
868 z = ext[4] << 2;
869
870 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
871 x |= (ext[5] >> 3) & 0x02;
872 y |= (ext[5] >> 4) & 0x02;
873 z &= ~0x4;
874 z |= (ext[5] >> 5) & 0x06;
875 } else {
876 x |= (ext[5] >> 2) & 0x03;
877 y |= (ext[5] >> 4) & 0x03;
878 z |= (ext[5] >> 6) & 0x03;
879 }
880
881 x -= 0x200;
882 y -= 0x200;
883 z -= 0x200;
884
885 input_report_abs(wdata->extension.input, ABS_HAT0X, bx);
886 input_report_abs(wdata->extension.input, ABS_HAT0Y, by);
887
888 input_report_abs(wdata->extension.input, ABS_RX, x);
889 input_report_abs(wdata->extension.input, ABS_RY, y);
890 input_report_abs(wdata->extension.input, ABS_RZ, z);
891
892 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
893 input_report_key(wdata->extension.input,
894 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
895 !(ext[5] & 0x04));
896 input_report_key(wdata->extension.input,
897 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
898 !(ext[5] & 0x08));
899 } else {
900 input_report_key(wdata->extension.input,
901 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
902 !(ext[5] & 0x01));
903 input_report_key(wdata->extension.input,
904 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
905 !(ext[5] & 0x02));
906 }
907
908 input_sync(wdata->extension.input);
909 }
910
911 static int wiimod_nunchuk_open(struct input_dev *dev)
912 {
913 struct wiimote_data *wdata = input_get_drvdata(dev);
914 unsigned long flags;
915
916 spin_lock_irqsave(&wdata->state.lock, flags);
917 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
918 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
919 spin_unlock_irqrestore(&wdata->state.lock, flags);
920
921 return 0;
922 }
923
924 static void wiimod_nunchuk_close(struct input_dev *dev)
925 {
926 struct wiimote_data *wdata = input_get_drvdata(dev);
927 unsigned long flags;
928
929 spin_lock_irqsave(&wdata->state.lock, flags);
930 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
931 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
932 spin_unlock_irqrestore(&wdata->state.lock, flags);
933 }
934
935 static int wiimod_nunchuk_probe(const struct wiimod_ops *ops,
936 struct wiimote_data *wdata)
937 {
938 int ret, i;
939
940 wdata->extension.input = input_allocate_device();
941 if (!wdata->extension.input)
942 return -ENOMEM;
943
944 input_set_drvdata(wdata->extension.input, wdata);
945 wdata->extension.input->open = wiimod_nunchuk_open;
946 wdata->extension.input->close = wiimod_nunchuk_close;
947 wdata->extension.input->dev.parent = &wdata->hdev->dev;
948 wdata->extension.input->id.bustype = wdata->hdev->bus;
949 wdata->extension.input->id.vendor = wdata->hdev->vendor;
950 wdata->extension.input->id.product = wdata->hdev->product;
951 wdata->extension.input->id.version = wdata->hdev->version;
952 wdata->extension.input->name = WIIMOTE_NAME " Nunchuk";
953
954 set_bit(EV_KEY, wdata->extension.input->evbit);
955 for (i = 0; i < WIIMOD_NUNCHUK_KEY_NUM; ++i)
956 set_bit(wiimod_nunchuk_map[i],
957 wdata->extension.input->keybit);
958
959 set_bit(EV_ABS, wdata->extension.input->evbit);
960 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
961 set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
962 input_set_abs_params(wdata->extension.input,
963 ABS_HAT0X, -120, 120, 2, 4);
964 input_set_abs_params(wdata->extension.input,
965 ABS_HAT0Y, -120, 120, 2, 4);
966 set_bit(ABS_RX, wdata->extension.input->absbit);
967 set_bit(ABS_RY, wdata->extension.input->absbit);
968 set_bit(ABS_RZ, wdata->extension.input->absbit);
969 input_set_abs_params(wdata->extension.input,
970 ABS_RX, -500, 500, 2, 4);
971 input_set_abs_params(wdata->extension.input,
972 ABS_RY, -500, 500, 2, 4);
973 input_set_abs_params(wdata->extension.input,
974 ABS_RZ, -500, 500, 2, 4);
975
976 ret = input_register_device(wdata->extension.input);
977 if (ret)
978 goto err_free;
979
980 return 0;
981
982 err_free:
983 input_free_device(wdata->extension.input);
984 wdata->extension.input = NULL;
985 return ret;
986 }
987
988 static void wiimod_nunchuk_remove(const struct wiimod_ops *ops,
989 struct wiimote_data *wdata)
990 {
991 if (!wdata->extension.input)
992 return;
993
994 input_unregister_device(wdata->extension.input);
995 wdata->extension.input = NULL;
996 }
997
998 static const struct wiimod_ops wiimod_nunchuk = {
999 .flags = 0,
1000 .arg = 0,
1001 .probe = wiimod_nunchuk_probe,
1002 .remove = wiimod_nunchuk_remove,
1003 .in_ext = wiimod_nunchuk_in_ext,
1004 };
1005
1006 /*
1007 * Classic Controller
1008 * Another official extension from Nintendo. It provides a classic
1009 * gamecube-like controller that can be hotplugged on the Wii Remote.
1010 * It has several hardware buttons and switches that are all reported via
1011 * a normal extension device.
1012 */
1013
1014 enum wiimod_classic_keys {
1015 WIIMOD_CLASSIC_KEY_A,
1016 WIIMOD_CLASSIC_KEY_B,
1017 WIIMOD_CLASSIC_KEY_X,
1018 WIIMOD_CLASSIC_KEY_Y,
1019 WIIMOD_CLASSIC_KEY_ZL,
1020 WIIMOD_CLASSIC_KEY_ZR,
1021 WIIMOD_CLASSIC_KEY_PLUS,
1022 WIIMOD_CLASSIC_KEY_MINUS,
1023 WIIMOD_CLASSIC_KEY_HOME,
1024 WIIMOD_CLASSIC_KEY_LEFT,
1025 WIIMOD_CLASSIC_KEY_RIGHT,
1026 WIIMOD_CLASSIC_KEY_UP,
1027 WIIMOD_CLASSIC_KEY_DOWN,
1028 WIIMOD_CLASSIC_KEY_LT,
1029 WIIMOD_CLASSIC_KEY_RT,
1030 WIIMOD_CLASSIC_KEY_NUM,
1031 };
1032
1033 static const __u16 wiimod_classic_map[] = {
1034 BTN_A, /* WIIMOD_CLASSIC_KEY_A */
1035 BTN_B, /* WIIMOD_CLASSIC_KEY_B */
1036 BTN_X, /* WIIMOD_CLASSIC_KEY_X */
1037 BTN_Y, /* WIIMOD_CLASSIC_KEY_Y */
1038 BTN_TL2, /* WIIMOD_CLASSIC_KEY_ZL */
1039 BTN_TR2, /* WIIMOD_CLASSIC_KEY_ZR */
1040 KEY_NEXT, /* WIIMOD_CLASSIC_KEY_PLUS */
1041 KEY_PREVIOUS, /* WIIMOD_CLASSIC_KEY_MINUS */
1042 BTN_MODE, /* WIIMOD_CLASSIC_KEY_HOME */
1043 KEY_LEFT, /* WIIMOD_CLASSIC_KEY_LEFT */
1044 KEY_RIGHT, /* WIIMOD_CLASSIC_KEY_RIGHT */
1045 KEY_UP, /* WIIMOD_CLASSIC_KEY_UP */
1046 KEY_DOWN, /* WIIMOD_CLASSIC_KEY_DOWN */
1047 BTN_TL, /* WIIMOD_CLASSIC_KEY_LT */
1048 BTN_TR, /* WIIMOD_CLASSIC_KEY_RT */
1049 };
1050
1051 static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
1052 {
1053 __s8 rx, ry, lx, ly, lt, rt;
1054
1055 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1056 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1057 * 1 | RX <5:4> | LX <5:0> |
1058 * 2 | RX <3:2> | LY <5:0> |
1059 * -----+-----+-----+-----+-----------------------------+
1060 * 3 |RX<1>| LT <5:4> | RY <5:1> |
1061 * -----+-----+-----------+-----------------------------+
1062 * 4 | LT <3:1> | RT <5:1> |
1063 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1064 * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
1065 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1066 * 6 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
1067 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1068 * All buttons are 0 if pressed
1069 * RX and RY are right analog stick
1070 * LX and LY are left analog stick
1071 * LT is left trigger, RT is right trigger
1072 * BLT is 0 if left trigger is fully pressed
1073 * BRT is 0 if right trigger is fully pressed
1074 * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
1075 * BZL is left Z button and BZR is right Z button
1076 * B-, BH, B+ are +, HOME and - buttons
1077 * BB, BY, BA, BX are A, B, X, Y buttons
1078 * LSB of RX, RY, LT, and RT are not transmitted and always 0.
1079 *
1080 * With motionp enabled it changes slightly to this:
1081 * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1082 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1083 * 1 | RX <5:4> | LX <5:1> | BDU |
1084 * 2 | RX <3:2> | LY <5:1> | BDL |
1085 * -----+-----+-----+-----+-----------------------+-----+
1086 * 3 |RX<1>| LT <5:4> | RY <5:1> |
1087 * -----+-----+-----------+-----------------------------+
1088 * 4 | LT <3:1> | RT <5:1> |
1089 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1090 * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | EXT |
1091 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1092 * 6 | BZL | BB | BY | BA | BX | BZR | 0 | 0 |
1093 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1094 * Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
1095 * is the same as before.
1096 */
1097
1098 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
1099 lx = ext[0] & 0x3e;
1100 ly = ext[1] & 0x3e;
1101 } else {
1102 lx = ext[0] & 0x3f;
1103 ly = ext[1] & 0x3f;
1104 }
1105
1106 rx = (ext[0] >> 3) & 0x18;
1107 rx |= (ext[1] >> 5) & 0x06;
1108 rx |= (ext[2] >> 7) & 0x01;
1109 ry = ext[2] & 0x1f;
1110
1111 rt = ext[3] & 0x1f;
1112 lt = (ext[2] >> 2) & 0x18;
1113 lt |= (ext[3] >> 5) & 0x07;
1114
1115 rx <<= 1;
1116 ry <<= 1;
1117 rt <<= 1;
1118 lt <<= 1;
1119
1120 input_report_abs(wdata->extension.input, ABS_HAT1X, lx - 0x20);
1121 input_report_abs(wdata->extension.input, ABS_HAT1Y, ly - 0x20);
1122 input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20);
1123 input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20);
1124 input_report_abs(wdata->extension.input, ABS_HAT3X, rt);
1125 input_report_abs(wdata->extension.input, ABS_HAT3Y, lt);
1126
1127 input_report_key(wdata->extension.input,
1128 wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
1129 !(ext[4] & 0x80));
1130 input_report_key(wdata->extension.input,
1131 wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
1132 !(ext[4] & 0x40));
1133 input_report_key(wdata->extension.input,
1134 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT],
1135 !(ext[4] & 0x20));
1136 input_report_key(wdata->extension.input,
1137 wiimod_classic_map[WIIMOD_CLASSIC_KEY_MINUS],
1138 !(ext[4] & 0x10));
1139 input_report_key(wdata->extension.input,
1140 wiimod_classic_map[WIIMOD_CLASSIC_KEY_HOME],
1141 !(ext[4] & 0x08));
1142 input_report_key(wdata->extension.input,
1143 wiimod_classic_map[WIIMOD_CLASSIC_KEY_PLUS],
1144 !(ext[4] & 0x04));
1145 input_report_key(wdata->extension.input,
1146 wiimod_classic_map[WIIMOD_CLASSIC_KEY_RT],
1147 !(ext[4] & 0x02));
1148 input_report_key(wdata->extension.input,
1149 wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZL],
1150 !(ext[5] & 0x80));
1151 input_report_key(wdata->extension.input,
1152 wiimod_classic_map[WIIMOD_CLASSIC_KEY_B],
1153 !(ext[5] & 0x40));
1154 input_report_key(wdata->extension.input,
1155 wiimod_classic_map[WIIMOD_CLASSIC_KEY_Y],
1156 !(ext[5] & 0x20));
1157 input_report_key(wdata->extension.input,
1158 wiimod_classic_map[WIIMOD_CLASSIC_KEY_A],
1159 !(ext[5] & 0x10));
1160 input_report_key(wdata->extension.input,
1161 wiimod_classic_map[WIIMOD_CLASSIC_KEY_X],
1162 !(ext[5] & 0x08));
1163 input_report_key(wdata->extension.input,
1164 wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR],
1165 !(ext[5] & 0x04));
1166
1167 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
1168 input_report_key(wdata->extension.input,
1169 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
1170 !(ext[1] & 0x01));
1171 input_report_key(wdata->extension.input,
1172 wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
1173 !(ext[0] & 0x01));
1174 } else {
1175 input_report_key(wdata->extension.input,
1176 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
1177 !(ext[5] & 0x02));
1178 input_report_key(wdata->extension.input,
1179 wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
1180 !(ext[5] & 0x01));
1181 }
1182
1183 input_sync(wdata->extension.input);
1184 }
1185
1186 static int wiimod_classic_open(struct input_dev *dev)
1187 {
1188 struct wiimote_data *wdata = input_get_drvdata(dev);
1189 unsigned long flags;
1190
1191 spin_lock_irqsave(&wdata->state.lock, flags);
1192 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1193 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1194 spin_unlock_irqrestore(&wdata->state.lock, flags);
1195
1196 return 0;
1197 }
1198
1199 static void wiimod_classic_close(struct input_dev *dev)
1200 {
1201 struct wiimote_data *wdata = input_get_drvdata(dev);
1202 unsigned long flags;
1203
1204 spin_lock_irqsave(&wdata->state.lock, flags);
1205 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1206 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1207 spin_unlock_irqrestore(&wdata->state.lock, flags);
1208 }
1209
1210 static int wiimod_classic_probe(const struct wiimod_ops *ops,
1211 struct wiimote_data *wdata)
1212 {
1213 int ret, i;
1214
1215 wdata->extension.input = input_allocate_device();
1216 if (!wdata->extension.input)
1217 return -ENOMEM;
1218
1219 input_set_drvdata(wdata->extension.input, wdata);
1220 wdata->extension.input->open = wiimod_classic_open;
1221 wdata->extension.input->close = wiimod_classic_close;
1222 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1223 wdata->extension.input->id.bustype = wdata->hdev->bus;
1224 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1225 wdata->extension.input->id.product = wdata->hdev->product;
1226 wdata->extension.input->id.version = wdata->hdev->version;
1227 wdata->extension.input->name = WIIMOTE_NAME " Classic Controller";
1228
1229 set_bit(EV_KEY, wdata->extension.input->evbit);
1230 for (i = 0; i < WIIMOD_CLASSIC_KEY_NUM; ++i)
1231 set_bit(wiimod_classic_map[i],
1232 wdata->extension.input->keybit);
1233
1234 set_bit(EV_ABS, wdata->extension.input->evbit);
1235 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
1236 set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
1237 set_bit(ABS_HAT2X, wdata->extension.input->absbit);
1238 set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
1239 set_bit(ABS_HAT3X, wdata->extension.input->absbit);
1240 set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
1241 input_set_abs_params(wdata->extension.input,
1242 ABS_HAT1X, -30, 30, 1, 1);
1243 input_set_abs_params(wdata->extension.input,
1244 ABS_HAT1Y, -30, 30, 1, 1);
1245 input_set_abs_params(wdata->extension.input,
1246 ABS_HAT2X, -30, 30, 1, 1);
1247 input_set_abs_params(wdata->extension.input,
1248 ABS_HAT2Y, -30, 30, 1, 1);
1249 input_set_abs_params(wdata->extension.input,
1250 ABS_HAT3X, -30, 30, 1, 1);
1251 input_set_abs_params(wdata->extension.input,
1252 ABS_HAT3Y, -30, 30, 1, 1);
1253
1254 ret = input_register_device(wdata->extension.input);
1255 if (ret)
1256 goto err_free;
1257
1258 return 0;
1259
1260 err_free:
1261 input_free_device(wdata->extension.input);
1262 wdata->extension.input = NULL;
1263 return ret;
1264 }
1265
1266 static void wiimod_classic_remove(const struct wiimod_ops *ops,
1267 struct wiimote_data *wdata)
1268 {
1269 if (!wdata->extension.input)
1270 return;
1271
1272 input_unregister_device(wdata->extension.input);
1273 wdata->extension.input = NULL;
1274 }
1275
1276 static const struct wiimod_ops wiimod_classic = {
1277 .flags = 0,
1278 .arg = 0,
1279 .probe = wiimod_classic_probe,
1280 .remove = wiimod_classic_remove,
1281 .in_ext = wiimod_classic_in_ext,
1282 };
1283
1284 /*
1285 * Balance Board Extension
1286 * The Nintendo Wii Balance Board provides four hardware weight sensor plus a
1287 * single push button. No other peripherals are available. However, the
1288 * balance-board data is sent via a standard Wii Remote extension. All other
1289 * data for non-present hardware is zeroed out.
1290 * Some 3rd party devices react allergic if we try to access normal Wii Remote
1291 * hardware, so this extension module should be the only module that is loaded
1292 * on balance boards.
1293 * The balance board needs 8 bytes extension data instead of basic 6 bytes so
1294 * it needs the WIIMOD_FLAG_EXT8 flag.
1295 */
1296
1297 static void wiimod_bboard_in_keys(struct wiimote_data *wdata, const __u8 *keys)
1298 {
1299 input_report_key(wdata->extension.input, BTN_A,
1300 !!(keys[1] & 0x08));
1301 input_sync(wdata->extension.input);
1302 }
1303
1304 static void wiimod_bboard_in_ext(struct wiimote_data *wdata,
1305 const __u8 *ext)
1306 {
1307 __s32 val[4], tmp, div;
1308 unsigned int i;
1309 struct wiimote_state *s = &wdata->state;
1310
1311 /*
1312 * Balance board data layout:
1313 *
1314 * Byte | 8 7 6 5 4 3 2 1 |
1315 * -----+--------------------------+
1316 * 1 | Top Right <15:8> |
1317 * 2 | Top Right <7:0> |
1318 * -----+--------------------------+
1319 * 3 | Bottom Right <15:8> |
1320 * 4 | Bottom Right <7:0> |
1321 * -----+--------------------------+
1322 * 5 | Top Left <15:8> |
1323 * 6 | Top Left <7:0> |
1324 * -----+--------------------------+
1325 * 7 | Bottom Left <15:8> |
1326 * 8 | Bottom Left <7:0> |
1327 * -----+--------------------------+
1328 *
1329 * These values represent the weight-measurements of the Wii-balance
1330 * board with 16bit precision.
1331 *
1332 * The balance-board is never reported interleaved with motionp.
1333 */
1334
1335 val[0] = ext[0];
1336 val[0] <<= 8;
1337 val[0] |= ext[1];
1338
1339 val[1] = ext[2];
1340 val[1] <<= 8;
1341 val[1] |= ext[3];
1342
1343 val[2] = ext[4];
1344 val[2] <<= 8;
1345 val[2] |= ext[5];
1346
1347 val[3] = ext[6];
1348 val[3] <<= 8;
1349 val[3] |= ext[7];
1350
1351 /* apply calibration data */
1352 for (i = 0; i < 4; i++) {
1353 if (val[i] <= s->calib_bboard[i][0]) {
1354 tmp = 0;
1355 } else if (val[i] < s->calib_bboard[i][1]) {
1356 tmp = val[i] - s->calib_bboard[i][0];
1357 tmp *= 1700;
1358 div = s->calib_bboard[i][1] - s->calib_bboard[i][0];
1359 tmp /= div ? div : 1;
1360 } else {
1361 tmp = val[i] - s->calib_bboard[i][1];
1362 tmp *= 1700;
1363 div = s->calib_bboard[i][2] - s->calib_bboard[i][1];
1364 tmp /= div ? div : 1;
1365 tmp += 1700;
1366 }
1367 val[i] = tmp;
1368 }
1369
1370 input_report_abs(wdata->extension.input, ABS_HAT0X, val[0]);
1371 input_report_abs(wdata->extension.input, ABS_HAT0Y, val[1]);
1372 input_report_abs(wdata->extension.input, ABS_HAT1X, val[2]);
1373 input_report_abs(wdata->extension.input, ABS_HAT1Y, val[3]);
1374 input_sync(wdata->extension.input);
1375 }
1376
1377 static int wiimod_bboard_open(struct input_dev *dev)
1378 {
1379 struct wiimote_data *wdata = input_get_drvdata(dev);
1380 unsigned long flags;
1381
1382 spin_lock_irqsave(&wdata->state.lock, flags);
1383 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1384 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1385 spin_unlock_irqrestore(&wdata->state.lock, flags);
1386
1387 return 0;
1388 }
1389
1390 static void wiimod_bboard_close(struct input_dev *dev)
1391 {
1392 struct wiimote_data *wdata = input_get_drvdata(dev);
1393 unsigned long flags;
1394
1395 spin_lock_irqsave(&wdata->state.lock, flags);
1396 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1397 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1398 spin_unlock_irqrestore(&wdata->state.lock, flags);
1399 }
1400
1401 static ssize_t wiimod_bboard_calib_show(struct device *dev,
1402 struct device_attribute *attr,
1403 char *out)
1404 {
1405 struct wiimote_data *wdata = dev_to_wii(dev);
1406 int i, j, ret;
1407 __u16 val;
1408 __u8 buf[24], offs;
1409
1410 ret = wiimote_cmd_acquire(wdata);
1411 if (ret)
1412 return ret;
1413
1414 ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
1415 if (ret != 12) {
1416 wiimote_cmd_release(wdata);
1417 return ret < 0 ? ret : -EIO;
1418 }
1419 ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
1420 if (ret != 12) {
1421 wiimote_cmd_release(wdata);
1422 return ret < 0 ? ret : -EIO;
1423 }
1424
1425 wiimote_cmd_release(wdata);
1426
1427 spin_lock_irq(&wdata->state.lock);
1428 offs = 0;
1429 for (i = 0; i < 3; ++i) {
1430 for (j = 0; j < 4; ++j) {
1431 wdata->state.calib_bboard[j][i] = buf[offs];
1432 wdata->state.calib_bboard[j][i] <<= 8;
1433 wdata->state.calib_bboard[j][i] |= buf[offs + 1];
1434 offs += 2;
1435 }
1436 }
1437 spin_unlock_irq(&wdata->state.lock);
1438
1439 ret = 0;
1440 for (i = 0; i < 3; ++i) {
1441 for (j = 0; j < 4; ++j) {
1442 val = wdata->state.calib_bboard[j][i];
1443 if (i == 2 && j == 3)
1444 ret += sprintf(&out[ret], "%04x\n", val);
1445 else
1446 ret += sprintf(&out[ret], "%04x:", val);
1447 }
1448 }
1449
1450 return ret;
1451 }
1452
1453 static DEVICE_ATTR(bboard_calib, S_IRUGO, wiimod_bboard_calib_show, NULL);
1454
1455 static int wiimod_bboard_probe(const struct wiimod_ops *ops,
1456 struct wiimote_data *wdata)
1457 {
1458 int ret, i, j;
1459 __u8 buf[24], offs;
1460
1461 wiimote_cmd_acquire_noint(wdata);
1462
1463 ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
1464 if (ret != 12) {
1465 wiimote_cmd_release(wdata);
1466 return ret < 0 ? ret : -EIO;
1467 }
1468 ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
1469 if (ret != 12) {
1470 wiimote_cmd_release(wdata);
1471 return ret < 0 ? ret : -EIO;
1472 }
1473
1474 wiimote_cmd_release(wdata);
1475
1476 offs = 0;
1477 for (i = 0; i < 3; ++i) {
1478 for (j = 0; j < 4; ++j) {
1479 wdata->state.calib_bboard[j][i] = buf[offs];
1480 wdata->state.calib_bboard[j][i] <<= 8;
1481 wdata->state.calib_bboard[j][i] |= buf[offs + 1];
1482 offs += 2;
1483 }
1484 }
1485
1486 wdata->extension.input = input_allocate_device();
1487 if (!wdata->extension.input)
1488 return -ENOMEM;
1489
1490 ret = device_create_file(&wdata->hdev->dev,
1491 &dev_attr_bboard_calib);
1492 if (ret) {
1493 hid_err(wdata->hdev, "cannot create sysfs attribute\n");
1494 goto err_free;
1495 }
1496
1497 input_set_drvdata(wdata->extension.input, wdata);
1498 wdata->extension.input->open = wiimod_bboard_open;
1499 wdata->extension.input->close = wiimod_bboard_close;
1500 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1501 wdata->extension.input->id.bustype = wdata->hdev->bus;
1502 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1503 wdata->extension.input->id.product = wdata->hdev->product;
1504 wdata->extension.input->id.version = wdata->hdev->version;
1505 wdata->extension.input->name = WIIMOTE_NAME " Balance Board";
1506
1507 set_bit(EV_KEY, wdata->extension.input->evbit);
1508 set_bit(BTN_A, wdata->extension.input->keybit);
1509
1510 set_bit(EV_ABS, wdata->extension.input->evbit);
1511 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
1512 set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
1513 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
1514 set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
1515 input_set_abs_params(wdata->extension.input,
1516 ABS_HAT0X, 0, 65535, 2, 4);
1517 input_set_abs_params(wdata->extension.input,
1518 ABS_HAT0Y, 0, 65535, 2, 4);
1519 input_set_abs_params(wdata->extension.input,
1520 ABS_HAT1X, 0, 65535, 2, 4);
1521 input_set_abs_params(wdata->extension.input,
1522 ABS_HAT1Y, 0, 65535, 2, 4);
1523
1524 ret = input_register_device(wdata->extension.input);
1525 if (ret)
1526 goto err_file;
1527
1528 return 0;
1529
1530 err_file:
1531 device_remove_file(&wdata->hdev->dev,
1532 &dev_attr_bboard_calib);
1533 err_free:
1534 input_free_device(wdata->extension.input);
1535 wdata->extension.input = NULL;
1536 return ret;
1537 }
1538
1539 static void wiimod_bboard_remove(const struct wiimod_ops *ops,
1540 struct wiimote_data *wdata)
1541 {
1542 if (!wdata->extension.input)
1543 return;
1544
1545 input_unregister_device(wdata->extension.input);
1546 wdata->extension.input = NULL;
1547 device_remove_file(&wdata->hdev->dev,
1548 &dev_attr_bboard_calib);
1549 }
1550
1551 static const struct wiimod_ops wiimod_bboard = {
1552 .flags = WIIMOD_FLAG_EXT8,
1553 .arg = 0,
1554 .probe = wiimod_bboard_probe,
1555 .remove = wiimod_bboard_remove,
1556 .in_keys = wiimod_bboard_in_keys,
1557 .in_ext = wiimod_bboard_in_ext,
1558 };
1559
1560 /*
1561 * Pro Controller
1562 * Released with the Wii U was the Nintendo Wii U Pro Controller. It does not
1563 * work together with the classic Wii, but only with the new Wii U. However, it
1564 * uses the same protocol and provides a builtin "classic controller pro"
1565 * extension, few standard buttons, a rumble motor, 4 LEDs and a battery.
1566 * We provide all these via a standard extension device as the device doesn't
1567 * feature an extension port.
1568 */
1569
1570 enum wiimod_pro_keys {
1571 WIIMOD_PRO_KEY_A,
1572 WIIMOD_PRO_KEY_B,
1573 WIIMOD_PRO_KEY_X,
1574 WIIMOD_PRO_KEY_Y,
1575 WIIMOD_PRO_KEY_PLUS,
1576 WIIMOD_PRO_KEY_MINUS,
1577 WIIMOD_PRO_KEY_HOME,
1578 WIIMOD_PRO_KEY_LEFT,
1579 WIIMOD_PRO_KEY_RIGHT,
1580 WIIMOD_PRO_KEY_UP,
1581 WIIMOD_PRO_KEY_DOWN,
1582 WIIMOD_PRO_KEY_TL,
1583 WIIMOD_PRO_KEY_TR,
1584 WIIMOD_PRO_KEY_ZL,
1585 WIIMOD_PRO_KEY_ZR,
1586 WIIMOD_PRO_KEY_THUMBL,
1587 WIIMOD_PRO_KEY_THUMBR,
1588 WIIMOD_PRO_KEY_NUM,
1589 };
1590
1591 static const __u16 wiimod_pro_map[] = {
1592 BTN_EAST, /* WIIMOD_PRO_KEY_A */
1593 BTN_SOUTH, /* WIIMOD_PRO_KEY_B */
1594 BTN_NORTH, /* WIIMOD_PRO_KEY_X */
1595 BTN_WEST, /* WIIMOD_PRO_KEY_Y */
1596 BTN_START, /* WIIMOD_PRO_KEY_PLUS */
1597 BTN_SELECT, /* WIIMOD_PRO_KEY_MINUS */
1598 BTN_MODE, /* WIIMOD_PRO_KEY_HOME */
1599 BTN_DPAD_LEFT, /* WIIMOD_PRO_KEY_LEFT */
1600 BTN_DPAD_RIGHT, /* WIIMOD_PRO_KEY_RIGHT */
1601 BTN_DPAD_UP, /* WIIMOD_PRO_KEY_UP */
1602 BTN_DPAD_DOWN, /* WIIMOD_PRO_KEY_DOWN */
1603 BTN_TL, /* WIIMOD_PRO_KEY_TL */
1604 BTN_TR, /* WIIMOD_PRO_KEY_TR */
1605 BTN_TL2, /* WIIMOD_PRO_KEY_ZL */
1606 BTN_TR2, /* WIIMOD_PRO_KEY_ZR */
1607 BTN_THUMBL, /* WIIMOD_PRO_KEY_THUMBL */
1608 BTN_THUMBR, /* WIIMOD_PRO_KEY_THUMBR */
1609 };
1610
1611 static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
1612 {
1613 __s16 rx, ry, lx, ly;
1614
1615 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1616 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1617 * 1 | LX <7:0> |
1618 * -----+-----------------------+-----------------------+
1619 * 2 | 0 0 0 0 | LX <11:8> |
1620 * -----+-----------------------+-----------------------+
1621 * 3 | RX <7:0> |
1622 * -----+-----------------------+-----------------------+
1623 * 4 | 0 0 0 0 | RX <11:8> |
1624 * -----+-----------------------+-----------------------+
1625 * 5 | LY <7:0> |
1626 * -----+-----------------------+-----------------------+
1627 * 6 | 0 0 0 0 | LY <11:8> |
1628 * -----+-----------------------+-----------------------+
1629 * 7 | RY <7:0> |
1630 * -----+-----------------------+-----------------------+
1631 * 8 | 0 0 0 0 | RY <11:8> |
1632 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1633 * 9 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
1634 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1635 * 10 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
1636 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1637 * 11 | 1 | BATTERY | USB |CHARG|LTHUM|RTHUM|
1638 * -----+-----+-----------------+-----------+-----+-----+
1639 * All buttons are low-active (0 if pressed)
1640 * RX and RY are right analog stick
1641 * LX and LY are left analog stick
1642 * BLT is left trigger, BRT is right trigger.
1643 * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
1644 * BZL is left Z button and BZR is right Z button
1645 * B-, BH, B+ are +, HOME and - buttons
1646 * BB, BY, BA, BX are A, B, X, Y buttons
1647 *
1648 * Bits marked as 0/1 are unknown and never changed during tests.
1649 *
1650 * Not entirely verified:
1651 * CHARG: 1 if uncharging, 0 if charging
1652 * USB: 1 if not connected, 0 if connected
1653 * BATTERY: battery capacity from 000 (empty) to 100 (full)
1654 */
1655
1656 lx = (ext[0] & 0xff) | ((ext[1] & 0x0f) << 8);
1657 rx = (ext[2] & 0xff) | ((ext[3] & 0x0f) << 8);
1658 ly = (ext[4] & 0xff) | ((ext[5] & 0x0f) << 8);
1659 ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
1660
1661 /* zero-point offsets */
1662 lx -= 0x800;
1663 ly = 0x800 - ly;
1664 rx -= 0x800;
1665 ry = 0x800 - ry;
1666
1667 /* Trivial automatic calibration. We don't know any calibration data
1668 * in the EEPROM so we must use the first report to calibrate the
1669 * null-position of the analog sticks. Users can retrigger calibration
1670 * via sysfs, or set it explicitly. If data is off more than abs(500),
1671 * we skip calibration as the sticks are likely to be moved already. */
1672 if (!(wdata->state.flags & WIIPROTO_FLAG_PRO_CALIB_DONE)) {
1673 wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
1674 if (abs(lx) < 500)
1675 wdata->state.calib_pro_sticks[0] = -lx;
1676 if (abs(ly) < 500)
1677 wdata->state.calib_pro_sticks[1] = -ly;
1678 if (abs(rx) < 500)
1679 wdata->state.calib_pro_sticks[2] = -rx;
1680 if (abs(ry) < 500)
1681 wdata->state.calib_pro_sticks[3] = -ry;
1682 }
1683
1684 /* apply calibration data */
1685 lx += wdata->state.calib_pro_sticks[0];
1686 ly += wdata->state.calib_pro_sticks[1];
1687 rx += wdata->state.calib_pro_sticks[2];
1688 ry += wdata->state.calib_pro_sticks[3];
1689
1690 input_report_abs(wdata->extension.input, ABS_X, lx);
1691 input_report_abs(wdata->extension.input, ABS_Y, ly);
1692 input_report_abs(wdata->extension.input, ABS_RX, rx);
1693 input_report_abs(wdata->extension.input, ABS_RY, ry);
1694
1695 input_report_key(wdata->extension.input,
1696 wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
1697 !(ext[8] & 0x80));
1698 input_report_key(wdata->extension.input,
1699 wiimod_pro_map[WIIMOD_PRO_KEY_DOWN],
1700 !(ext[8] & 0x40));
1701 input_report_key(wdata->extension.input,
1702 wiimod_pro_map[WIIMOD_PRO_KEY_TL],
1703 !(ext[8] & 0x20));
1704 input_report_key(wdata->extension.input,
1705 wiimod_pro_map[WIIMOD_PRO_KEY_MINUS],
1706 !(ext[8] & 0x10));
1707 input_report_key(wdata->extension.input,
1708 wiimod_pro_map[WIIMOD_PRO_KEY_HOME],
1709 !(ext[8] & 0x08));
1710 input_report_key(wdata->extension.input,
1711 wiimod_pro_map[WIIMOD_PRO_KEY_PLUS],
1712 !(ext[8] & 0x04));
1713 input_report_key(wdata->extension.input,
1714 wiimod_pro_map[WIIMOD_PRO_KEY_TR],
1715 !(ext[8] & 0x02));
1716
1717 input_report_key(wdata->extension.input,
1718 wiimod_pro_map[WIIMOD_PRO_KEY_ZL],
1719 !(ext[9] & 0x80));
1720 input_report_key(wdata->extension.input,
1721 wiimod_pro_map[WIIMOD_PRO_KEY_B],
1722 !(ext[9] & 0x40));
1723 input_report_key(wdata->extension.input,
1724 wiimod_pro_map[WIIMOD_PRO_KEY_Y],
1725 !(ext[9] & 0x20));
1726 input_report_key(wdata->extension.input,
1727 wiimod_pro_map[WIIMOD_PRO_KEY_A],
1728 !(ext[9] & 0x10));
1729 input_report_key(wdata->extension.input,
1730 wiimod_pro_map[WIIMOD_PRO_KEY_X],
1731 !(ext[9] & 0x08));
1732 input_report_key(wdata->extension.input,
1733 wiimod_pro_map[WIIMOD_PRO_KEY_ZR],
1734 !(ext[9] & 0x04));
1735 input_report_key(wdata->extension.input,
1736 wiimod_pro_map[WIIMOD_PRO_KEY_LEFT],
1737 !(ext[9] & 0x02));
1738 input_report_key(wdata->extension.input,
1739 wiimod_pro_map[WIIMOD_PRO_KEY_UP],
1740 !(ext[9] & 0x01));
1741
1742 input_report_key(wdata->extension.input,
1743 wiimod_pro_map[WIIMOD_PRO_KEY_THUMBL],
1744 !(ext[10] & 0x02));
1745 input_report_key(wdata->extension.input,
1746 wiimod_pro_map[WIIMOD_PRO_KEY_THUMBR],
1747 !(ext[10] & 0x01));
1748
1749 input_sync(wdata->extension.input);
1750 }
1751
1752 static int wiimod_pro_open(struct input_dev *dev)
1753 {
1754 struct wiimote_data *wdata = input_get_drvdata(dev);
1755 unsigned long flags;
1756
1757 spin_lock_irqsave(&wdata->state.lock, flags);
1758 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1759 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1760 spin_unlock_irqrestore(&wdata->state.lock, flags);
1761
1762 return 0;
1763 }
1764
1765 static void wiimod_pro_close(struct input_dev *dev)
1766 {
1767 struct wiimote_data *wdata = input_get_drvdata(dev);
1768 unsigned long flags;
1769
1770 spin_lock_irqsave(&wdata->state.lock, flags);
1771 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1772 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1773 spin_unlock_irqrestore(&wdata->state.lock, flags);
1774 }
1775
1776 static int wiimod_pro_play(struct input_dev *dev, void *data,
1777 struct ff_effect *eff)
1778 {
1779 struct wiimote_data *wdata = input_get_drvdata(dev);
1780 __u8 value;
1781
1782 /*
1783 * The wiimote supports only a single rumble motor so if any magnitude
1784 * is set to non-zero then we start the rumble motor. If both are set to
1785 * zero, we stop the rumble motor.
1786 */
1787
1788 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
1789 value = 1;
1790 else
1791 value = 0;
1792
1793 /* Locking state.lock here might deadlock with input_event() calls.
1794 * schedule_work acts as barrier. Merging multiple changes is fine. */
1795 wdata->state.cache_rumble = value;
1796 schedule_work(&wdata->rumble_worker);
1797
1798 return 0;
1799 }
1800
1801 static ssize_t wiimod_pro_calib_show(struct device *dev,
1802 struct device_attribute *attr,
1803 char *out)
1804 {
1805 struct wiimote_data *wdata = dev_to_wii(dev);
1806 int r;
1807
1808 r = 0;
1809 r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[0]);
1810 r += sprintf(&out[r], "%+06hd ", wdata->state.calib_pro_sticks[1]);
1811 r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[2]);
1812 r += sprintf(&out[r], "%+06hd\n", wdata->state.calib_pro_sticks[3]);
1813
1814 return r;
1815 }
1816
1817 static ssize_t wiimod_pro_calib_store(struct device *dev,
1818 struct device_attribute *attr,
1819 const char *buf, size_t count)
1820 {
1821 struct wiimote_data *wdata = dev_to_wii(dev);
1822 int r;
1823 s16 x1, y1, x2, y2;
1824
1825 if (!strncmp(buf, "scan\n", 5)) {
1826 spin_lock_irq(&wdata->state.lock);
1827 wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
1828 spin_unlock_irq(&wdata->state.lock);
1829 } else {
1830 r = sscanf(buf, "%hd:%hd %hd:%hd", &x1, &y1, &x2, &y2);
1831 if (r != 4)
1832 return -EINVAL;
1833
1834 spin_lock_irq(&wdata->state.lock);
1835 wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
1836 spin_unlock_irq(&wdata->state.lock);
1837
1838 wdata->state.calib_pro_sticks[0] = x1;
1839 wdata->state.calib_pro_sticks[1] = y1;
1840 wdata->state.calib_pro_sticks[2] = x2;
1841 wdata->state.calib_pro_sticks[3] = y2;
1842 }
1843
1844 return strnlen(buf, PAGE_SIZE);
1845 }
1846
1847 static DEVICE_ATTR(pro_calib, S_IRUGO|S_IWUSR|S_IWGRP, wiimod_pro_calib_show,
1848 wiimod_pro_calib_store);
1849
1850 static int wiimod_pro_probe(const struct wiimod_ops *ops,
1851 struct wiimote_data *wdata)
1852 {
1853 int ret, i;
1854 unsigned long flags;
1855
1856 INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
1857 wdata->state.calib_pro_sticks[0] = 0;
1858 wdata->state.calib_pro_sticks[1] = 0;
1859 wdata->state.calib_pro_sticks[2] = 0;
1860 wdata->state.calib_pro_sticks[3] = 0;
1861
1862 spin_lock_irqsave(&wdata->state.lock, flags);
1863 wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
1864 spin_unlock_irqrestore(&wdata->state.lock, flags);
1865
1866 wdata->extension.input = input_allocate_device();
1867 if (!wdata->extension.input)
1868 return -ENOMEM;
1869
1870 set_bit(FF_RUMBLE, wdata->extension.input->ffbit);
1871 input_set_drvdata(wdata->extension.input, wdata);
1872
1873 if (input_ff_create_memless(wdata->extension.input, NULL,
1874 wiimod_pro_play)) {
1875 ret = -ENOMEM;
1876 goto err_free;
1877 }
1878
1879 ret = device_create_file(&wdata->hdev->dev,
1880 &dev_attr_pro_calib);
1881 if (ret) {
1882 hid_err(wdata->hdev, "cannot create sysfs attribute\n");
1883 goto err_free;
1884 }
1885
1886 wdata->extension.input->open = wiimod_pro_open;
1887 wdata->extension.input->close = wiimod_pro_close;
1888 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1889 wdata->extension.input->id.bustype = wdata->hdev->bus;
1890 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1891 wdata->extension.input->id.product = wdata->hdev->product;
1892 wdata->extension.input->id.version = wdata->hdev->version;
1893 wdata->extension.input->name = WIIMOTE_NAME " Pro Controller";
1894
1895 set_bit(EV_KEY, wdata->extension.input->evbit);
1896 for (i = 0; i < WIIMOD_PRO_KEY_NUM; ++i)
1897 set_bit(wiimod_pro_map[i],
1898 wdata->extension.input->keybit);
1899
1900 set_bit(EV_ABS, wdata->extension.input->evbit);
1901 set_bit(ABS_X, wdata->extension.input->absbit);
1902 set_bit(ABS_Y, wdata->extension.input->absbit);
1903 set_bit(ABS_RX, wdata->extension.input->absbit);
1904 set_bit(ABS_RY, wdata->extension.input->absbit);
1905 input_set_abs_params(wdata->extension.input,
1906 ABS_X, -0x400, 0x400, 4, 100);
1907 input_set_abs_params(wdata->extension.input,
1908 ABS_Y, -0x400, 0x400, 4, 100);
1909 input_set_abs_params(wdata->extension.input,
1910 ABS_RX, -0x400, 0x400, 4, 100);
1911 input_set_abs_params(wdata->extension.input,
1912 ABS_RY, -0x400, 0x400, 4, 100);
1913
1914 ret = input_register_device(wdata->extension.input);
1915 if (ret)
1916 goto err_file;
1917
1918 return 0;
1919
1920 err_file:
1921 device_remove_file(&wdata->hdev->dev,
1922 &dev_attr_pro_calib);
1923 err_free:
1924 input_free_device(wdata->extension.input);
1925 wdata->extension.input = NULL;
1926 return ret;
1927 }
1928
1929 static void wiimod_pro_remove(const struct wiimod_ops *ops,
1930 struct wiimote_data *wdata)
1931 {
1932 unsigned long flags;
1933
1934 if (!wdata->extension.input)
1935 return;
1936
1937 input_unregister_device(wdata->extension.input);
1938 wdata->extension.input = NULL;
1939 cancel_work_sync(&wdata->rumble_worker);
1940 device_remove_file(&wdata->hdev->dev,
1941 &dev_attr_pro_calib);
1942
1943 spin_lock_irqsave(&wdata->state.lock, flags);
1944 wiiproto_req_rumble(wdata, 0);
1945 spin_unlock_irqrestore(&wdata->state.lock, flags);
1946 }
1947
1948 static const struct wiimod_ops wiimod_pro = {
1949 .flags = WIIMOD_FLAG_EXT16,
1950 .arg = 0,
1951 .probe = wiimod_pro_probe,
1952 .remove = wiimod_pro_remove,
1953 .in_ext = wiimod_pro_in_ext,
1954 };
1955
1956 /*
1957 * Builtin Motion Plus
1958 * This module simply sets the WIIPROTO_FLAG_BUILTIN_MP protocol flag which
1959 * disables polling for Motion-Plus. This should be set only for devices which
1960 * don't allow MP hotplugging.
1961 */
1962
1963 static int wiimod_builtin_mp_probe(const struct wiimod_ops *ops,
1964 struct wiimote_data *wdata)
1965 {
1966 unsigned long flags;
1967
1968 spin_lock_irqsave(&wdata->state.lock, flags);
1969 wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
1970 spin_unlock_irqrestore(&wdata->state.lock, flags);
1971
1972 return 0;
1973 }
1974
1975 static void wiimod_builtin_mp_remove(const struct wiimod_ops *ops,
1976 struct wiimote_data *wdata)
1977 {
1978 unsigned long flags;
1979
1980 spin_lock_irqsave(&wdata->state.lock, flags);
1981 wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
1982 spin_unlock_irqrestore(&wdata->state.lock, flags);
1983 }
1984
1985 static const struct wiimod_ops wiimod_builtin_mp = {
1986 .flags = 0,
1987 .arg = 0,
1988 .probe = wiimod_builtin_mp_probe,
1989 .remove = wiimod_builtin_mp_remove,
1990 };
1991
1992 /*
1993 * No Motion Plus
1994 * This module simply sets the WIIPROTO_FLAG_NO_MP protocol flag which
1995 * disables motion-plus. This is needed for devices that advertise this but we
1996 * don't know how to use it (or whether it is actually present).
1997 */
1998
1999 static int wiimod_no_mp_probe(const struct wiimod_ops *ops,
2000 struct wiimote_data *wdata)
2001 {
2002 unsigned long flags;
2003
2004 spin_lock_irqsave(&wdata->state.lock, flags);
2005 wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
2006 spin_unlock_irqrestore(&wdata->state.lock, flags);
2007
2008 return 0;
2009 }
2010
2011 static void wiimod_no_mp_remove(const struct wiimod_ops *ops,
2012 struct wiimote_data *wdata)
2013 {
2014 unsigned long flags;
2015
2016 spin_lock_irqsave(&wdata->state.lock, flags);
2017 wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
2018 spin_unlock_irqrestore(&wdata->state.lock, flags);
2019 }
2020
2021 static const struct wiimod_ops wiimod_no_mp = {
2022 .flags = 0,
2023 .arg = 0,
2024 .probe = wiimod_no_mp_probe,
2025 .remove = wiimod_no_mp_remove,
2026 };
2027
2028 /*
2029 * Motion Plus
2030 * The Motion Plus extension provides rotation sensors (gyro) as a small
2031 * extension device for Wii Remotes. Many devices have them built-in so
2032 * you cannot see them from the outside.
2033 * Motion Plus extensions are special because they are on a separate extension
2034 * port and allow other extensions to be used simultaneously. This is all
2035 * handled by the Wiimote Core so we don't have to deal with it.
2036 */
2037
2038 static void wiimod_mp_in_mp(struct wiimote_data *wdata, const __u8 *ext)
2039 {
2040 __s32 x, y, z;
2041
2042 /* | 8 7 6 5 4 3 | 2 | 1 |
2043 * -----+------------------------------+-----+-----+
2044 * 1 | Yaw Speed <7:0> |
2045 * 2 | Roll Speed <7:0> |
2046 * 3 | Pitch Speed <7:0> |
2047 * -----+------------------------------+-----+-----+
2048 * 4 | Yaw Speed <13:8> | Yaw |Pitch|
2049 * -----+------------------------------+-----+-----+
2050 * 5 | Roll Speed <13:8> |Roll | Ext |
2051 * -----+------------------------------+-----+-----+
2052 * 6 | Pitch Speed <13:8> | 1 | 0 |
2053 * -----+------------------------------+-----+-----+
2054 * The single bits Yaw, Roll, Pitch in the lower right corner specify
2055 * whether the wiimote is rotating fast (0) or slow (1). Speed for slow
2056 * roation is 440 deg/s and for fast rotation 2000 deg/s. To get a
2057 * linear scale we multiply by 2000/440 = ~4.5454 which is 18 for fast
2058 * and 9 for slow.
2059 * If the wiimote is not rotating the sensor reports 2^13 = 8192.
2060 * Ext specifies whether an extension is connected to the motionp.
2061 * which is parsed by wiimote-core.
2062 */
2063
2064 x = ext[0];
2065 y = ext[1];
2066 z = ext[2];
2067
2068 x |= (((__u16)ext[3]) << 6) & 0xff00;
2069 y |= (((__u16)ext[4]) << 6) & 0xff00;
2070 z |= (((__u16)ext[5]) << 6) & 0xff00;
2071
2072 x -= 8192;
2073 y -= 8192;
2074 z -= 8192;
2075
2076 if (!(ext[3] & 0x02))
2077 x *= 18;
2078 else
2079 x *= 9;
2080 if (!(ext[4] & 0x02))
2081 y *= 18;
2082 else
2083 y *= 9;
2084 if (!(ext[3] & 0x01))
2085 z *= 18;
2086 else
2087 z *= 9;
2088
2089 input_report_abs(wdata->mp, ABS_RX, x);
2090 input_report_abs(wdata->mp, ABS_RY, y);
2091 input_report_abs(wdata->mp, ABS_RZ, z);
2092 input_sync(wdata->mp);
2093 }
2094
2095 static int wiimod_mp_open(struct input_dev *dev)
2096 {
2097 struct wiimote_data *wdata = input_get_drvdata(dev);
2098 unsigned long flags;
2099
2100 spin_lock_irqsave(&wdata->state.lock, flags);
2101 wdata->state.flags |= WIIPROTO_FLAG_MP_USED;
2102 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2103 __wiimote_schedule(wdata);
2104 spin_unlock_irqrestore(&wdata->state.lock, flags);
2105
2106 return 0;
2107 }
2108
2109 static void wiimod_mp_close(struct input_dev *dev)
2110 {
2111 struct wiimote_data *wdata = input_get_drvdata(dev);
2112 unsigned long flags;
2113
2114 spin_lock_irqsave(&wdata->state.lock, flags);
2115 wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
2116 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2117 __wiimote_schedule(wdata);
2118 spin_unlock_irqrestore(&wdata->state.lock, flags);
2119 }
2120
2121 static int wiimod_mp_probe(const struct wiimod_ops *ops,
2122 struct wiimote_data *wdata)
2123 {
2124 int ret;
2125
2126 wdata->mp = input_allocate_device();
2127 if (!wdata->mp)
2128 return -ENOMEM;
2129
2130 input_set_drvdata(wdata->mp, wdata);
2131 wdata->mp->open = wiimod_mp_open;
2132 wdata->mp->close = wiimod_mp_close;
2133 wdata->mp->dev.parent = &wdata->hdev->dev;
2134 wdata->mp->id.bustype = wdata->hdev->bus;
2135 wdata->mp->id.vendor = wdata->hdev->vendor;
2136 wdata->mp->id.product = wdata->hdev->product;
2137 wdata->mp->id.version = wdata->hdev->version;
2138 wdata->mp->name = WIIMOTE_NAME " Motion Plus";
2139
2140 set_bit(EV_ABS, wdata->mp->evbit);
2141 set_bit(ABS_RX, wdata->mp->absbit);
2142 set_bit(ABS_RY, wdata->mp->absbit);
2143 set_bit(ABS_RZ, wdata->mp->absbit);
2144 input_set_abs_params(wdata->mp,
2145 ABS_RX, -16000, 16000, 4, 8);
2146 input_set_abs_params(wdata->mp,
2147 ABS_RY, -16000, 16000, 4, 8);
2148 input_set_abs_params(wdata->mp,
2149 ABS_RZ, -16000, 16000, 4, 8);
2150
2151 ret = input_register_device(wdata->mp);
2152 if (ret)
2153 goto err_free;
2154
2155 return 0;
2156
2157 err_free:
2158 input_free_device(wdata->mp);
2159 wdata->mp = NULL;
2160 return ret;
2161 }
2162
2163 static void wiimod_mp_remove(const struct wiimod_ops *ops,
2164 struct wiimote_data *wdata)
2165 {
2166 if (!wdata->mp)
2167 return;
2168
2169 input_unregister_device(wdata->mp);
2170 wdata->mp = NULL;
2171 }
2172
2173 const struct wiimod_ops wiimod_mp = {
2174 .flags = 0,
2175 .arg = 0,
2176 .probe = wiimod_mp_probe,
2177 .remove = wiimod_mp_remove,
2178 .in_mp = wiimod_mp_in_mp,
2179 };
2180
2181 /* module table */
2182
2183 static const struct wiimod_ops wiimod_dummy;
2184
2185 const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
2186 [WIIMOD_KEYS] = &wiimod_keys,
2187 [WIIMOD_RUMBLE] = &wiimod_rumble,
2188 [WIIMOD_BATTERY] = &wiimod_battery,
2189 [WIIMOD_LED1] = &wiimod_leds[0],
2190 [WIIMOD_LED2] = &wiimod_leds[1],
2191 [WIIMOD_LED3] = &wiimod_leds[2],
2192 [WIIMOD_LED4] = &wiimod_leds[3],
2193 [WIIMOD_ACCEL] = &wiimod_accel,
2194 [WIIMOD_IR] = &wiimod_ir,
2195 [WIIMOD_BUILTIN_MP] = &wiimod_builtin_mp,
2196 [WIIMOD_NO_MP] = &wiimod_no_mp,
2197 };
2198
2199 const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
2200 [WIIMOTE_EXT_NONE] = &wiimod_dummy,
2201 [WIIMOTE_EXT_UNKNOWN] = &wiimod_dummy,
2202 [WIIMOTE_EXT_NUNCHUK] = &wiimod_nunchuk,
2203 [WIIMOTE_EXT_CLASSIC_CONTROLLER] = &wiimod_classic,
2204 [WIIMOTE_EXT_BALANCE_BOARD] = &wiimod_bboard,
2205 [WIIMOTE_EXT_PRO_CONTROLLER] = &wiimod_pro,
2206 };
Linux with added FPC-III support