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x86/speculation/mds: Fix documentation typo
[linux/fpc-iii.git] / drivers / hid / hid-wiimote-modules.c
blobc830ed39348f7cdba2b06b9dda01616e9405335a
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 device *dev = led_dev->dev->parent;
300 struct wiimote_data *wdata = dev_to_wii(dev);
301 int i;
302 unsigned long flags;
303 bool value = false;
304
305 for (i = 0; i < 4; ++i) {
306 if (wdata->leds[i] == led_dev) {
307 spin_lock_irqsave(&wdata->state.lock, flags);
308 value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
309 spin_unlock_irqrestore(&wdata->state.lock, flags);
310 break;
311 }
312 }
313
314 return value ? LED_FULL : LED_OFF;
315 }
316
317 static void wiimod_led_set(struct led_classdev *led_dev,
318 enum led_brightness value)
319 {
320 struct device *dev = led_dev->dev->parent;
321 struct wiimote_data *wdata = dev_to_wii(dev);
322 int i;
323 unsigned long flags;
324 __u8 state, flag;
325
326 for (i = 0; i < 4; ++i) {
327 if (wdata->leds[i] == led_dev) {
328 flag = WIIPROTO_FLAG_LED(i + 1);
329 spin_lock_irqsave(&wdata->state.lock, flags);
330 state = wdata->state.flags;
331 if (value == LED_OFF)
332 wiiproto_req_leds(wdata, state & ~flag);
333 else
334 wiiproto_req_leds(wdata, state | flag);
335 spin_unlock_irqrestore(&wdata->state.lock, flags);
336 break;
337 }
338 }
339 }
340
341 static int wiimod_led_probe(const struct wiimod_ops *ops,
342 struct wiimote_data *wdata)
343 {
344 struct device *dev = &wdata->hdev->dev;
345 size_t namesz = strlen(dev_name(dev)) + 9;
346 struct led_classdev *led;
347 unsigned long flags;
348 char *name;
349 int ret;
350
351 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
352 if (!led)
353 return -ENOMEM;
354
355 name = (void*)&led[1];
356 snprintf(name, namesz, "%s:blue:p%lu", dev_name(dev), ops->arg);
357 led->name = name;
358 led->brightness = 0;
359 led->max_brightness = 1;
360 led->brightness_get = wiimod_led_get;
361 led->brightness_set = wiimod_led_set;
362
363 wdata->leds[ops->arg] = led;
364 ret = led_classdev_register(dev, led);
365 if (ret)
366 goto err_free;
367
368 /* enable LED1 to stop initial LED-blinking */
369 if (ops->arg == 0) {
370 spin_lock_irqsave(&wdata->state.lock, flags);
371 wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
372 spin_unlock_irqrestore(&wdata->state.lock, flags);
373 }
374
375 return 0;
376
377 err_free:
378 wdata->leds[ops->arg] = NULL;
379 kfree(led);
380 return ret;
381 }
382
383 static void wiimod_led_remove(const struct wiimod_ops *ops,
384 struct wiimote_data *wdata)
385 {
386 if (!wdata->leds[ops->arg])
387 return;
388
389 led_classdev_unregister(wdata->leds[ops->arg]);
390 kfree(wdata->leds[ops->arg]);
391 wdata->leds[ops->arg] = NULL;
392 }
393
394 static const struct wiimod_ops wiimod_leds[4] = {
395 {
396 .flags = 0,
397 .arg = 0,
398 .probe = wiimod_led_probe,
399 .remove = wiimod_led_remove,
400 },
401 {
402 .flags = 0,
403 .arg = 1,
404 .probe = wiimod_led_probe,
405 .remove = wiimod_led_remove,
406 },
407 {
408 .flags = 0,
409 .arg = 2,
410 .probe = wiimod_led_probe,
411 .remove = wiimod_led_remove,
412 },
413 {
414 .flags = 0,
415 .arg = 3,
416 .probe = wiimod_led_probe,
417 .remove = wiimod_led_remove,
418 },
419 };
420
421 /*
422 * Accelerometer
423 * 3 axis accelerometer data is part of nearly all DRMs. If not supported by a
424 * device, it's mostly cleared to 0. This module parses this data and provides
425 * it via a separate input device.
426 */
427
428 static void wiimod_accel_in_accel(struct wiimote_data *wdata,
429 const __u8 *accel)
430 {
431 __u16 x, y, z;
432
433 if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
434 return;
435
436 /*
437 * payload is: BB BB XX YY ZZ
438 * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
439 * contain the upper 8 bits of each value. The lower 2 bits are
440 * contained in the buttons data BB BB.
441 * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
442 * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
443 * accel value and bit 6 is the second bit of the Z value.
444 * The first bit of Y and Z values is not available and always set to 0.
445 * 0x200 is returned on no movement.
446 */
447
448 x = accel[2] << 2;
449 y = accel[3] << 2;
450 z = accel[4] << 2;
451
452 x |= (accel[0] >> 5) & 0x3;
453 y |= (accel[1] >> 4) & 0x2;
454 z |= (accel[1] >> 5) & 0x2;
455
456 input_report_abs(wdata->accel, ABS_RX, x - 0x200);
457 input_report_abs(wdata->accel, ABS_RY, y - 0x200);
458 input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
459 input_sync(wdata->accel);
460 }
461
462 static int wiimod_accel_open(struct input_dev *dev)
463 {
464 struct wiimote_data *wdata = input_get_drvdata(dev);
465 unsigned long flags;
466
467 spin_lock_irqsave(&wdata->state.lock, flags);
468 wiiproto_req_accel(wdata, true);
469 spin_unlock_irqrestore(&wdata->state.lock, flags);
470
471 return 0;
472 }
473
474 static void wiimod_accel_close(struct input_dev *dev)
475 {
476 struct wiimote_data *wdata = input_get_drvdata(dev);
477 unsigned long flags;
478
479 spin_lock_irqsave(&wdata->state.lock, flags);
480 wiiproto_req_accel(wdata, false);
481 spin_unlock_irqrestore(&wdata->state.lock, flags);
482 }
483
484 static int wiimod_accel_probe(const struct wiimod_ops *ops,
485 struct wiimote_data *wdata)
486 {
487 int ret;
488
489 wdata->accel = input_allocate_device();
490 if (!wdata->accel)
491 return -ENOMEM;
492
493 input_set_drvdata(wdata->accel, wdata);
494 wdata->accel->open = wiimod_accel_open;
495 wdata->accel->close = wiimod_accel_close;
496 wdata->accel->dev.parent = &wdata->hdev->dev;
497 wdata->accel->id.bustype = wdata->hdev->bus;
498 wdata->accel->id.vendor = wdata->hdev->vendor;
499 wdata->accel->id.product = wdata->hdev->product;
500 wdata->accel->id.version = wdata->hdev->version;
501 wdata->accel->name = WIIMOTE_NAME " Accelerometer";
502
503 set_bit(EV_ABS, wdata->accel->evbit);
504 set_bit(ABS_RX, wdata->accel->absbit);
505 set_bit(ABS_RY, wdata->accel->absbit);
506 set_bit(ABS_RZ, wdata->accel->absbit);
507 input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
508 input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
509 input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
510
511 ret = input_register_device(wdata->accel);
512 if (ret) {
513 hid_err(wdata->hdev, "cannot register input device\n");
514 goto err_free;
515 }
516
517 return 0;
518
519 err_free:
520 input_free_device(wdata->accel);
521 wdata->accel = NULL;
522 return ret;
523 }
524
525 static void wiimod_accel_remove(const struct wiimod_ops *ops,
526 struct wiimote_data *wdata)
527 {
528 if (!wdata->accel)
529 return;
530
531 input_unregister_device(wdata->accel);
532 wdata->accel = NULL;
533 }
534
535 static const struct wiimod_ops wiimod_accel = {
536 .flags = 0,
537 .arg = 0,
538 .probe = wiimod_accel_probe,
539 .remove = wiimod_accel_remove,
540 .in_accel = wiimod_accel_in_accel,
541 };
542
543 /*
544 * IR Cam
545 * Up to 4 IR sources can be tracked by a normal Wii Remote. The IR cam needs
546 * to be initialized with a fairly complex procedure and consumes a lot of
547 * power. Therefore, as long as no application uses the IR input device, it is
548 * kept offline.
549 * Nearly no other device than the normal Wii Remotes supports the IR cam so
550 * you can disable this module for these devices.
551 */
552
553 static void wiimod_ir_in_ir(struct wiimote_data *wdata, const __u8 *ir,
554 bool packed, unsigned int id)
555 {
556 __u16 x, y;
557 __u8 xid, yid;
558 bool sync = false;
559
560 if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
561 return;
562
563 switch (id) {
564 case 0:
565 xid = ABS_HAT0X;
566 yid = ABS_HAT0Y;
567 break;
568 case 1:
569 xid = ABS_HAT1X;
570 yid = ABS_HAT1Y;
571 break;
572 case 2:
573 xid = ABS_HAT2X;
574 yid = ABS_HAT2Y;
575 break;
576 case 3:
577 xid = ABS_HAT3X;
578 yid = ABS_HAT3Y;
579 sync = true;
580 break;
581 default:
582 return;
583 }
584
585 /*
586 * Basic IR data is encoded into 3 bytes. The first two bytes are the
587 * lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
588 * of both.
589 * If data is packed, then the 3rd byte is put first and slightly
590 * reordered. This allows to interleave packed and non-packed data to
591 * have two IR sets in 5 bytes instead of 6.
592 * The resulting 10bit X/Y values are passed to the ABS_HAT? input dev.
593 */
594
595 if (packed) {
596 x = ir[1] | ((ir[0] & 0x03) << 8);
597 y = ir[2] | ((ir[0] & 0x0c) << 6);
598 } else {
599 x = ir[0] | ((ir[2] & 0x30) << 4);
600 y = ir[1] | ((ir[2] & 0xc0) << 2);
601 }
602
603 input_report_abs(wdata->ir, xid, x);
604 input_report_abs(wdata->ir, yid, y);
605
606 if (sync)
607 input_sync(wdata->ir);
608 }
609
610 static int wiimod_ir_change(struct wiimote_data *wdata, __u16 mode)
611 {
612 int ret;
613 unsigned long flags;
614 __u8 format = 0;
615 static const __u8 data_enable[] = { 0x01 };
616 static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
617 0x00, 0xaa, 0x00, 0x64 };
618 static const __u8 data_sens2[] = { 0x63, 0x03 };
619 static const __u8 data_fin[] = { 0x08 };
620
621 spin_lock_irqsave(&wdata->state.lock, flags);
622
623 if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
624 spin_unlock_irqrestore(&wdata->state.lock, flags);
625 return 0;
626 }
627
628 if (mode == 0) {
629 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
630 wiiproto_req_ir1(wdata, 0);
631 wiiproto_req_ir2(wdata, 0);
632 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
633 spin_unlock_irqrestore(&wdata->state.lock, flags);
634 return 0;
635 }
636
637 spin_unlock_irqrestore(&wdata->state.lock, flags);
638
639 ret = wiimote_cmd_acquire(wdata);
640 if (ret)
641 return ret;
642
643 /* send PIXEL CLOCK ENABLE cmd first */
644 spin_lock_irqsave(&wdata->state.lock, flags);
645 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
646 wiiproto_req_ir1(wdata, 0x06);
647 spin_unlock_irqrestore(&wdata->state.lock, flags);
648
649 ret = wiimote_cmd_wait(wdata);
650 if (ret)
651 goto unlock;
652 if (wdata->state.cmd_err) {
653 ret = -EIO;
654 goto unlock;
655 }
656
657 /* enable IR LOGIC */
658 spin_lock_irqsave(&wdata->state.lock, flags);
659 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
660 wiiproto_req_ir2(wdata, 0x06);
661 spin_unlock_irqrestore(&wdata->state.lock, flags);
662
663 ret = wiimote_cmd_wait(wdata);
664 if (ret)
665 goto unlock;
666 if (wdata->state.cmd_err) {
667 ret = -EIO;
668 goto unlock;
669 }
670
671 /* enable IR cam but do not make it send data, yet */
672 ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
673 sizeof(data_enable));
674 if (ret)
675 goto unlock;
676
677 /* write first sensitivity block */
678 ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
679 sizeof(data_sens1));
680 if (ret)
681 goto unlock;
682
683 /* write second sensitivity block */
684 ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
685 sizeof(data_sens2));
686 if (ret)
687 goto unlock;
688
689 /* put IR cam into desired state */
690 switch (mode) {
691 case WIIPROTO_FLAG_IR_FULL:
692 format = 5;
693 break;
694 case WIIPROTO_FLAG_IR_EXT:
695 format = 3;
696 break;
697 case WIIPROTO_FLAG_IR_BASIC:
698 format = 1;
699 break;
700 }
701 ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
702 if (ret)
703 goto unlock;
704
705 /* make IR cam send data */
706 ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
707 if (ret)
708 goto unlock;
709
710 /* request new DRM mode compatible to IR mode */
711 spin_lock_irqsave(&wdata->state.lock, flags);
712 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
713 wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
714 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
715 spin_unlock_irqrestore(&wdata->state.lock, flags);
716
717 unlock:
718 wiimote_cmd_release(wdata);
719 return ret;
720 }
721
722 static int wiimod_ir_open(struct input_dev *dev)
723 {
724 struct wiimote_data *wdata = input_get_drvdata(dev);
725
726 return wiimod_ir_change(wdata, WIIPROTO_FLAG_IR_BASIC);
727 }
728
729 static void wiimod_ir_close(struct input_dev *dev)
730 {
731 struct wiimote_data *wdata = input_get_drvdata(dev);
732
733 wiimod_ir_change(wdata, 0);
734 }
735
736 static int wiimod_ir_probe(const struct wiimod_ops *ops,
737 struct wiimote_data *wdata)
738 {
739 int ret;
740
741 wdata->ir = input_allocate_device();
742 if (!wdata->ir)
743 return -ENOMEM;
744
745 input_set_drvdata(wdata->ir, wdata);
746 wdata->ir->open = wiimod_ir_open;
747 wdata->ir->close = wiimod_ir_close;
748 wdata->ir->dev.parent = &wdata->hdev->dev;
749 wdata->ir->id.bustype = wdata->hdev->bus;
750 wdata->ir->id.vendor = wdata->hdev->vendor;
751 wdata->ir->id.product = wdata->hdev->product;
752 wdata->ir->id.version = wdata->hdev->version;
753 wdata->ir->name = WIIMOTE_NAME " IR";
754
755 set_bit(EV_ABS, wdata->ir->evbit);
756 set_bit(ABS_HAT0X, wdata->ir->absbit);
757 set_bit(ABS_HAT0Y, wdata->ir->absbit);
758 set_bit(ABS_HAT1X, wdata->ir->absbit);
759 set_bit(ABS_HAT1Y, wdata->ir->absbit);
760 set_bit(ABS_HAT2X, wdata->ir->absbit);
761 set_bit(ABS_HAT2Y, wdata->ir->absbit);
762 set_bit(ABS_HAT3X, wdata->ir->absbit);
763 set_bit(ABS_HAT3Y, wdata->ir->absbit);
764 input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
765 input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
766 input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
767 input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
768 input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
769 input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
770 input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
771 input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
772
773 ret = input_register_device(wdata->ir);
774 if (ret) {
775 hid_err(wdata->hdev, "cannot register input device\n");
776 goto err_free;
777 }
778
779 return 0;
780
781 err_free:
782 input_free_device(wdata->ir);
783 wdata->ir = NULL;
784 return ret;
785 }
786
787 static void wiimod_ir_remove(const struct wiimod_ops *ops,
788 struct wiimote_data *wdata)
789 {
790 if (!wdata->ir)
791 return;
792
793 input_unregister_device(wdata->ir);
794 wdata->ir = NULL;
795 }
796
797 static const struct wiimod_ops wiimod_ir = {
798 .flags = 0,
799 .arg = 0,
800 .probe = wiimod_ir_probe,
801 .remove = wiimod_ir_remove,
802 .in_ir = wiimod_ir_in_ir,
803 };
804
805 /*
806 * Nunchuk Extension
807 * The Nintendo Wii Nunchuk was the first official extension published by
808 * Nintendo. It provides two additional keys and a separate accelerometer. It
809 * can be hotplugged to standard Wii Remotes.
810 */
811
812 enum wiimod_nunchuk_keys {
813 WIIMOD_NUNCHUK_KEY_C,
814 WIIMOD_NUNCHUK_KEY_Z,
815 WIIMOD_NUNCHUK_KEY_NUM,
816 };
817
818 static const __u16 wiimod_nunchuk_map[] = {
819 BTN_C, /* WIIMOD_NUNCHUK_KEY_C */
820 BTN_Z, /* WIIMOD_NUNCHUK_KEY_Z */
821 };
822
823 static void wiimod_nunchuk_in_ext(struct wiimote_data *wdata, const __u8 *ext)
824 {
825 __s16 x, y, z, bx, by;
826
827 /* Byte | 8 7 | 6 5 | 4 3 | 2 | 1 |
828 * -----+----------+---------+---------+----+-----+
829 * 1 | Button X <7:0> |
830 * 2 | Button Y <7:0> |
831 * -----+----------+---------+---------+----+-----+
832 * 3 | Speed X <9:2> |
833 * 4 | Speed Y <9:2> |
834 * 5 | Speed Z <9:2> |
835 * -----+----------+---------+---------+----+-----+
836 * 6 | Z <1:0> | Y <1:0> | X <1:0> | BC | BZ |
837 * -----+----------+---------+---------+----+-----+
838 * Button X/Y is the analog stick. Speed X, Y and Z are the
839 * accelerometer data in the same format as the wiimote's accelerometer.
840 * The 6th byte contains the LSBs of the accelerometer data.
841 * BC and BZ are the C and Z buttons: 0 means pressed
842 *
843 * If reported interleaved with motionp, then the layout changes. The
844 * 5th and 6th byte changes to:
845 * -----+-----------------------------------+-----+
846 * 5 | Speed Z <9:3> | EXT |
847 * -----+--------+-----+-----+----+----+----+-----+
848 * 6 |Z <2:1> |Y <1>|X <1>| BC | BZ | 0 | 0 |
849 * -----+--------+-----+-----+----+----+----+-----+
850 * All three accelerometer values lose their LSB. The other data is
851 * still available but slightly moved.
852 *
853 * Center data for button values is 128. Center value for accelerometer
854 * values it 512 / 0x200
855 */
856
857 bx = ext[0];
858 by = ext[1];
859 bx -= 128;
860 by -= 128;
861
862 x = ext[2] << 2;
863 y = ext[3] << 2;
864 z = ext[4] << 2;
865
866 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
867 x |= (ext[5] >> 3) & 0x02;
868 y |= (ext[5] >> 4) & 0x02;
869 z &= ~0x4;
870 z |= (ext[5] >> 5) & 0x06;
871 } else {
872 x |= (ext[5] >> 2) & 0x03;
873 y |= (ext[5] >> 4) & 0x03;
874 z |= (ext[5] >> 6) & 0x03;
875 }
876
877 x -= 0x200;
878 y -= 0x200;
879 z -= 0x200;
880
881 input_report_abs(wdata->extension.input, ABS_HAT0X, bx);
882 input_report_abs(wdata->extension.input, ABS_HAT0Y, by);
883
884 input_report_abs(wdata->extension.input, ABS_RX, x);
885 input_report_abs(wdata->extension.input, ABS_RY, y);
886 input_report_abs(wdata->extension.input, ABS_RZ, z);
887
888 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
889 input_report_key(wdata->extension.input,
890 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
891 !(ext[5] & 0x04));
892 input_report_key(wdata->extension.input,
893 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
894 !(ext[5] & 0x08));
895 } else {
896 input_report_key(wdata->extension.input,
897 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
898 !(ext[5] & 0x01));
899 input_report_key(wdata->extension.input,
900 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
901 !(ext[5] & 0x02));
902 }
903
904 input_sync(wdata->extension.input);
905 }
906
907 static int wiimod_nunchuk_open(struct input_dev *dev)
908 {
909 struct wiimote_data *wdata = input_get_drvdata(dev);
910 unsigned long flags;
911
912 spin_lock_irqsave(&wdata->state.lock, flags);
913 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
914 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
915 spin_unlock_irqrestore(&wdata->state.lock, flags);
916
917 return 0;
918 }
919
920 static void wiimod_nunchuk_close(struct input_dev *dev)
921 {
922 struct wiimote_data *wdata = input_get_drvdata(dev);
923 unsigned long flags;
924
925 spin_lock_irqsave(&wdata->state.lock, flags);
926 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
927 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
928 spin_unlock_irqrestore(&wdata->state.lock, flags);
929 }
930
931 static int wiimod_nunchuk_probe(const struct wiimod_ops *ops,
932 struct wiimote_data *wdata)
933 {
934 int ret, i;
935
936 wdata->extension.input = input_allocate_device();
937 if (!wdata->extension.input)
938 return -ENOMEM;
939
940 input_set_drvdata(wdata->extension.input, wdata);
941 wdata->extension.input->open = wiimod_nunchuk_open;
942 wdata->extension.input->close = wiimod_nunchuk_close;
943 wdata->extension.input->dev.parent = &wdata->hdev->dev;
944 wdata->extension.input->id.bustype = wdata->hdev->bus;
945 wdata->extension.input->id.vendor = wdata->hdev->vendor;
946 wdata->extension.input->id.product = wdata->hdev->product;
947 wdata->extension.input->id.version = wdata->hdev->version;
948 wdata->extension.input->name = WIIMOTE_NAME " Nunchuk";
949
950 set_bit(EV_KEY, wdata->extension.input->evbit);
951 for (i = 0; i < WIIMOD_NUNCHUK_KEY_NUM; ++i)
952 set_bit(wiimod_nunchuk_map[i],
953 wdata->extension.input->keybit);
954
955 set_bit(EV_ABS, wdata->extension.input->evbit);
956 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
957 set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
958 input_set_abs_params(wdata->extension.input,
959 ABS_HAT0X, -120, 120, 2, 4);
960 input_set_abs_params(wdata->extension.input,
961 ABS_HAT0Y, -120, 120, 2, 4);
962 set_bit(ABS_RX, wdata->extension.input->absbit);
963 set_bit(ABS_RY, wdata->extension.input->absbit);
964 set_bit(ABS_RZ, wdata->extension.input->absbit);
965 input_set_abs_params(wdata->extension.input,
966 ABS_RX, -500, 500, 2, 4);
967 input_set_abs_params(wdata->extension.input,
968 ABS_RY, -500, 500, 2, 4);
969 input_set_abs_params(wdata->extension.input,
970 ABS_RZ, -500, 500, 2, 4);
971
972 ret = input_register_device(wdata->extension.input);
973 if (ret)
974 goto err_free;
975
976 return 0;
977
978 err_free:
979 input_free_device(wdata->extension.input);
980 wdata->extension.input = NULL;
981 return ret;
982 }
983
984 static void wiimod_nunchuk_remove(const struct wiimod_ops *ops,
985 struct wiimote_data *wdata)
986 {
987 if (!wdata->extension.input)
988 return;
989
990 input_unregister_device(wdata->extension.input);
991 wdata->extension.input = NULL;
992 }
993
994 static const struct wiimod_ops wiimod_nunchuk = {
995 .flags = 0,
996 .arg = 0,
997 .probe = wiimod_nunchuk_probe,
998 .remove = wiimod_nunchuk_remove,
999 .in_ext = wiimod_nunchuk_in_ext,
1000 };
1001
1002 /*
1003 * Classic Controller
1004 * Another official extension from Nintendo. It provides a classic
1005 * gamecube-like controller that can be hotplugged on the Wii Remote.
1006 * It has several hardware buttons and switches that are all reported via
1007 * a normal extension device.
1008 */
1009
1010 enum wiimod_classic_keys {
1011 WIIMOD_CLASSIC_KEY_A,
1012 WIIMOD_CLASSIC_KEY_B,
1013 WIIMOD_CLASSIC_KEY_X,
1014 WIIMOD_CLASSIC_KEY_Y,
1015 WIIMOD_CLASSIC_KEY_ZL,
1016 WIIMOD_CLASSIC_KEY_ZR,
1017 WIIMOD_CLASSIC_KEY_PLUS,
1018 WIIMOD_CLASSIC_KEY_MINUS,
1019 WIIMOD_CLASSIC_KEY_HOME,
1020 WIIMOD_CLASSIC_KEY_LEFT,
1021 WIIMOD_CLASSIC_KEY_RIGHT,
1022 WIIMOD_CLASSIC_KEY_UP,
1023 WIIMOD_CLASSIC_KEY_DOWN,
1024 WIIMOD_CLASSIC_KEY_LT,
1025 WIIMOD_CLASSIC_KEY_RT,
1026 WIIMOD_CLASSIC_KEY_NUM,
1027 };
1028
1029 static const __u16 wiimod_classic_map[] = {
1030 BTN_A, /* WIIMOD_CLASSIC_KEY_A */
1031 BTN_B, /* WIIMOD_CLASSIC_KEY_B */
1032 BTN_X, /* WIIMOD_CLASSIC_KEY_X */
1033 BTN_Y, /* WIIMOD_CLASSIC_KEY_Y */
1034 BTN_TL2, /* WIIMOD_CLASSIC_KEY_ZL */
1035 BTN_TR2, /* WIIMOD_CLASSIC_KEY_ZR */
1036 KEY_NEXT, /* WIIMOD_CLASSIC_KEY_PLUS */
1037 KEY_PREVIOUS, /* WIIMOD_CLASSIC_KEY_MINUS */
1038 BTN_MODE, /* WIIMOD_CLASSIC_KEY_HOME */
1039 KEY_LEFT, /* WIIMOD_CLASSIC_KEY_LEFT */
1040 KEY_RIGHT, /* WIIMOD_CLASSIC_KEY_RIGHT */
1041 KEY_UP, /* WIIMOD_CLASSIC_KEY_UP */
1042 KEY_DOWN, /* WIIMOD_CLASSIC_KEY_DOWN */
1043 BTN_TL, /* WIIMOD_CLASSIC_KEY_LT */
1044 BTN_TR, /* WIIMOD_CLASSIC_KEY_RT */
1045 };
1046
1047 static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
1048 {
1049 __s8 rx, ry, lx, ly, lt, rt;
1050
1051 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1052 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1053 * 1 | RX <5:4> | LX <5:0> |
1054 * 2 | RX <3:2> | LY <5:0> |
1055 * -----+-----+-----+-----+-----------------------------+
1056 * 3 |RX<1>| LT <5:4> | RY <5:1> |
1057 * -----+-----+-----------+-----------------------------+
1058 * 4 | LT <3:1> | RT <5:1> |
1059 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1060 * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
1061 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1062 * 6 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
1063 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1064 * All buttons are 0 if pressed
1065 * RX and RY are right analog stick
1066 * LX and LY are left analog stick
1067 * LT is left trigger, RT is right trigger
1068 * BLT is 0 if left trigger is fully pressed
1069 * BRT is 0 if right trigger is fully pressed
1070 * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
1071 * BZL is left Z button and BZR is right Z button
1072 * B-, BH, B+ are +, HOME and - buttons
1073 * BB, BY, BA, BX are A, B, X, Y buttons
1074 * LSB of RX, RY, LT, and RT are not transmitted and always 0.
1075 *
1076 * With motionp enabled it changes slightly to this:
1077 * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1078 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1079 * 1 | RX <5:4> | LX <5:1> | BDU |
1080 * 2 | RX <3:2> | LY <5:1> | BDL |
1081 * -----+-----+-----+-----+-----------------------+-----+
1082 * 3 |RX<1>| LT <5:4> | RY <5:1> |
1083 * -----+-----+-----------+-----------------------------+
1084 * 4 | LT <3:1> | RT <5:1> |
1085 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1086 * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | EXT |
1087 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1088 * 6 | BZL | BB | BY | BA | BX | BZR | 0 | 0 |
1089 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1090 * Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
1091 * is the same as before.
1092 */
1093
1094 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
1095 lx = ext[0] & 0x3e;
1096 ly = ext[1] & 0x3e;
1097 } else {
1098 lx = ext[0] & 0x3f;
1099 ly = ext[1] & 0x3f;
1100 }
1101
1102 rx = (ext[0] >> 3) & 0x18;
1103 rx |= (ext[1] >> 5) & 0x06;
1104 rx |= (ext[2] >> 7) & 0x01;
1105 ry = ext[2] & 0x1f;
1106
1107 rt = ext[3] & 0x1f;
1108 lt = (ext[2] >> 2) & 0x18;
1109 lt |= (ext[3] >> 5) & 0x07;
1110
1111 rx <<= 1;
1112 ry <<= 1;
1113 rt <<= 1;
1114 lt <<= 1;
1115
1116 input_report_abs(wdata->extension.input, ABS_HAT1X, lx - 0x20);
1117 input_report_abs(wdata->extension.input, ABS_HAT1Y, ly - 0x20);
1118 input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20);
1119 input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20);
1120 input_report_abs(wdata->extension.input, ABS_HAT3X, rt);
1121 input_report_abs(wdata->extension.input, ABS_HAT3Y, lt);
1122
1123 input_report_key(wdata->extension.input,
1124 wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
1125 !(ext[4] & 0x80));
1126 input_report_key(wdata->extension.input,
1127 wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
1128 !(ext[4] & 0x40));
1129 input_report_key(wdata->extension.input,
1130 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT],
1131 !(ext[4] & 0x20));
1132 input_report_key(wdata->extension.input,
1133 wiimod_classic_map[WIIMOD_CLASSIC_KEY_MINUS],
1134 !(ext[4] & 0x10));
1135 input_report_key(wdata->extension.input,
1136 wiimod_classic_map[WIIMOD_CLASSIC_KEY_HOME],
1137 !(ext[4] & 0x08));
1138 input_report_key(wdata->extension.input,
1139 wiimod_classic_map[WIIMOD_CLASSIC_KEY_PLUS],
1140 !(ext[4] & 0x04));
1141 input_report_key(wdata->extension.input,
1142 wiimod_classic_map[WIIMOD_CLASSIC_KEY_RT],
1143 !(ext[4] & 0x02));
1144 input_report_key(wdata->extension.input,
1145 wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZL],
1146 !(ext[5] & 0x80));
1147 input_report_key(wdata->extension.input,
1148 wiimod_classic_map[WIIMOD_CLASSIC_KEY_B],
1149 !(ext[5] & 0x40));
1150 input_report_key(wdata->extension.input,
1151 wiimod_classic_map[WIIMOD_CLASSIC_KEY_Y],
1152 !(ext[5] & 0x20));
1153 input_report_key(wdata->extension.input,
1154 wiimod_classic_map[WIIMOD_CLASSIC_KEY_A],
1155 !(ext[5] & 0x10));
1156 input_report_key(wdata->extension.input,
1157 wiimod_classic_map[WIIMOD_CLASSIC_KEY_X],
1158 !(ext[5] & 0x08));
1159 input_report_key(wdata->extension.input,
1160 wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR],
1161 !(ext[5] & 0x04));
1162
1163 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
1164 input_report_key(wdata->extension.input,
1165 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
1166 !(ext[1] & 0x01));
1167 input_report_key(wdata->extension.input,
1168 wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
1169 !(ext[0] & 0x01));
1170 } else {
1171 input_report_key(wdata->extension.input,
1172 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
1173 !(ext[5] & 0x02));
1174 input_report_key(wdata->extension.input,
1175 wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
1176 !(ext[5] & 0x01));
1177 }
1178
1179 input_sync(wdata->extension.input);
1180 }
1181
1182 static int wiimod_classic_open(struct input_dev *dev)
1183 {
1184 struct wiimote_data *wdata = input_get_drvdata(dev);
1185 unsigned long flags;
1186
1187 spin_lock_irqsave(&wdata->state.lock, flags);
1188 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1189 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1190 spin_unlock_irqrestore(&wdata->state.lock, flags);
1191
1192 return 0;
1193 }
1194
1195 static void wiimod_classic_close(struct input_dev *dev)
1196 {
1197 struct wiimote_data *wdata = input_get_drvdata(dev);
1198 unsigned long flags;
1199
1200 spin_lock_irqsave(&wdata->state.lock, flags);
1201 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1202 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1203 spin_unlock_irqrestore(&wdata->state.lock, flags);
1204 }
1205
1206 static int wiimod_classic_probe(const struct wiimod_ops *ops,
1207 struct wiimote_data *wdata)
1208 {
1209 int ret, i;
1210
1211 wdata->extension.input = input_allocate_device();
1212 if (!wdata->extension.input)
1213 return -ENOMEM;
1214
1215 input_set_drvdata(wdata->extension.input, wdata);
1216 wdata->extension.input->open = wiimod_classic_open;
1217 wdata->extension.input->close = wiimod_classic_close;
1218 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1219 wdata->extension.input->id.bustype = wdata->hdev->bus;
1220 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1221 wdata->extension.input->id.product = wdata->hdev->product;
1222 wdata->extension.input->id.version = wdata->hdev->version;
1223 wdata->extension.input->name = WIIMOTE_NAME " Classic Controller";
1224
1225 set_bit(EV_KEY, wdata->extension.input->evbit);
1226 for (i = 0; i < WIIMOD_CLASSIC_KEY_NUM; ++i)
1227 set_bit(wiimod_classic_map[i],
1228 wdata->extension.input->keybit);
1229
1230 set_bit(EV_ABS, wdata->extension.input->evbit);
1231 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
1232 set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
1233 set_bit(ABS_HAT2X, wdata->extension.input->absbit);
1234 set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
1235 set_bit(ABS_HAT3X, wdata->extension.input->absbit);
1236 set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
1237 input_set_abs_params(wdata->extension.input,
1238 ABS_HAT1X, -30, 30, 1, 1);
1239 input_set_abs_params(wdata->extension.input,
1240 ABS_HAT1Y, -30, 30, 1, 1);
1241 input_set_abs_params(wdata->extension.input,
1242 ABS_HAT2X, -30, 30, 1, 1);
1243 input_set_abs_params(wdata->extension.input,
1244 ABS_HAT2Y, -30, 30, 1, 1);
1245 input_set_abs_params(wdata->extension.input,
1246 ABS_HAT3X, -30, 30, 1, 1);
1247 input_set_abs_params(wdata->extension.input,
1248 ABS_HAT3Y, -30, 30, 1, 1);
1249
1250 ret = input_register_device(wdata->extension.input);
1251 if (ret)
1252 goto err_free;
1253
1254 return 0;
1255
1256 err_free:
1257 input_free_device(wdata->extension.input);
1258 wdata->extension.input = NULL;
1259 return ret;
1260 }
1261
1262 static void wiimod_classic_remove(const struct wiimod_ops *ops,
1263 struct wiimote_data *wdata)
1264 {
1265 if (!wdata->extension.input)
1266 return;
1267
1268 input_unregister_device(wdata->extension.input);
1269 wdata->extension.input = NULL;
1270 }
1271
1272 static const struct wiimod_ops wiimod_classic = {
1273 .flags = 0,
1274 .arg = 0,
1275 .probe = wiimod_classic_probe,
1276 .remove = wiimod_classic_remove,
1277 .in_ext = wiimod_classic_in_ext,
1278 };
1279
1280 /*
1281 * Balance Board Extension
1282 * The Nintendo Wii Balance Board provides four hardware weight sensor plus a
1283 * single push button. No other peripherals are available. However, the
1284 * balance-board data is sent via a standard Wii Remote extension. All other
1285 * data for non-present hardware is zeroed out.
1286 * Some 3rd party devices react allergic if we try to access normal Wii Remote
1287 * hardware, so this extension module should be the only module that is loaded
1288 * on balance boards.
1289 * The balance board needs 8 bytes extension data instead of basic 6 bytes so
1290 * it needs the WIIMOD_FLAG_EXT8 flag.
1291 */
1292
1293 static void wiimod_bboard_in_keys(struct wiimote_data *wdata, const __u8 *keys)
1294 {
1295 input_report_key(wdata->extension.input, BTN_A,
1296 !!(keys[1] & 0x08));
1297 input_sync(wdata->extension.input);
1298 }
1299
1300 static void wiimod_bboard_in_ext(struct wiimote_data *wdata,
1301 const __u8 *ext)
1302 {
1303 __s32 val[4], tmp, div;
1304 unsigned int i;
1305 struct wiimote_state *s = &wdata->state;
1306
1307 /*
1308 * Balance board data layout:
1309 *
1310 * Byte | 8 7 6 5 4 3 2 1 |
1311 * -----+--------------------------+
1312 * 1 | Top Right <15:8> |
1313 * 2 | Top Right <7:0> |
1314 * -----+--------------------------+
1315 * 3 | Bottom Right <15:8> |
1316 * 4 | Bottom Right <7:0> |
1317 * -----+--------------------------+
1318 * 5 | Top Left <15:8> |
1319 * 6 | Top Left <7:0> |
1320 * -----+--------------------------+
1321 * 7 | Bottom Left <15:8> |
1322 * 8 | Bottom Left <7:0> |
1323 * -----+--------------------------+
1324 *
1325 * These values represent the weight-measurements of the Wii-balance
1326 * board with 16bit precision.
1327 *
1328 * The balance-board is never reported interleaved with motionp.
1329 */
1330
1331 val[0] = ext[0];
1332 val[0] <<= 8;
1333 val[0] |= ext[1];
1334
1335 val[1] = ext[2];
1336 val[1] <<= 8;
1337 val[1] |= ext[3];
1338
1339 val[2] = ext[4];
1340 val[2] <<= 8;
1341 val[2] |= ext[5];
1342
1343 val[3] = ext[6];
1344 val[3] <<= 8;
1345 val[3] |= ext[7];
1346
1347 /* apply calibration data */
1348 for (i = 0; i < 4; i++) {
1349 if (val[i] <= s->calib_bboard[i][0]) {
1350 tmp = 0;
1351 } else if (val[i] < s->calib_bboard[i][1]) {
1352 tmp = val[i] - s->calib_bboard[i][0];
1353 tmp *= 1700;
1354 div = s->calib_bboard[i][1] - s->calib_bboard[i][0];
1355 tmp /= div ? div : 1;
1356 } else {
1357 tmp = val[i] - s->calib_bboard[i][1];
1358 tmp *= 1700;
1359 div = s->calib_bboard[i][2] - s->calib_bboard[i][1];
1360 tmp /= div ? div : 1;
1361 tmp += 1700;
1362 }
1363 val[i] = tmp;
1364 }
1365
1366 input_report_abs(wdata->extension.input, ABS_HAT0X, val[0]);
1367 input_report_abs(wdata->extension.input, ABS_HAT0Y, val[1]);
1368 input_report_abs(wdata->extension.input, ABS_HAT1X, val[2]);
1369 input_report_abs(wdata->extension.input, ABS_HAT1Y, val[3]);
1370 input_sync(wdata->extension.input);
1371 }
1372
1373 static int wiimod_bboard_open(struct input_dev *dev)
1374 {
1375 struct wiimote_data *wdata = input_get_drvdata(dev);
1376 unsigned long flags;
1377
1378 spin_lock_irqsave(&wdata->state.lock, flags);
1379 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1380 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1381 spin_unlock_irqrestore(&wdata->state.lock, flags);
1382
1383 return 0;
1384 }
1385
1386 static void wiimod_bboard_close(struct input_dev *dev)
1387 {
1388 struct wiimote_data *wdata = input_get_drvdata(dev);
1389 unsigned long flags;
1390
1391 spin_lock_irqsave(&wdata->state.lock, flags);
1392 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1393 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1394 spin_unlock_irqrestore(&wdata->state.lock, flags);
1395 }
1396
1397 static ssize_t wiimod_bboard_calib_show(struct device *dev,
1398 struct device_attribute *attr,
1399 char *out)
1400 {
1401 struct wiimote_data *wdata = dev_to_wii(dev);
1402 int i, j, ret;
1403 __u16 val;
1404 __u8 buf[24], offs;
1405
1406 ret = wiimote_cmd_acquire(wdata);
1407 if (ret)
1408 return ret;
1409
1410 ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
1411 if (ret != 12) {
1412 wiimote_cmd_release(wdata);
1413 return ret < 0 ? ret : -EIO;
1414 }
1415 ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
1416 if (ret != 12) {
1417 wiimote_cmd_release(wdata);
1418 return ret < 0 ? ret : -EIO;
1419 }
1420
1421 wiimote_cmd_release(wdata);
1422
1423 spin_lock_irq(&wdata->state.lock);
1424 offs = 0;
1425 for (i = 0; i < 3; ++i) {
1426 for (j = 0; j < 4; ++j) {
1427 wdata->state.calib_bboard[j][i] = buf[offs];
1428 wdata->state.calib_bboard[j][i] <<= 8;
1429 wdata->state.calib_bboard[j][i] |= buf[offs + 1];
1430 offs += 2;
1431 }
1432 }
1433 spin_unlock_irq(&wdata->state.lock);
1434
1435 ret = 0;
1436 for (i = 0; i < 3; ++i) {
1437 for (j = 0; j < 4; ++j) {
1438 val = wdata->state.calib_bboard[j][i];
1439 if (i == 2 && j == 3)
1440 ret += sprintf(&out[ret], "%04x\n", val);
1441 else
1442 ret += sprintf(&out[ret], "%04x:", val);
1443 }
1444 }
1445
1446 return ret;
1447 }
1448
1449 static DEVICE_ATTR(bboard_calib, S_IRUGO, wiimod_bboard_calib_show, NULL);
1450
1451 static int wiimod_bboard_probe(const struct wiimod_ops *ops,
1452 struct wiimote_data *wdata)
1453 {
1454 int ret, i, j;
1455 __u8 buf[24], offs;
1456
1457 wiimote_cmd_acquire_noint(wdata);
1458
1459 ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
1460 if (ret != 12) {
1461 wiimote_cmd_release(wdata);
1462 return ret < 0 ? ret : -EIO;
1463 }
1464 ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
1465 if (ret != 12) {
1466 wiimote_cmd_release(wdata);
1467 return ret < 0 ? ret : -EIO;
1468 }
1469
1470 wiimote_cmd_release(wdata);
1471
1472 offs = 0;
1473 for (i = 0; i < 3; ++i) {
1474 for (j = 0; j < 4; ++j) {
1475 wdata->state.calib_bboard[j][i] = buf[offs];
1476 wdata->state.calib_bboard[j][i] <<= 8;
1477 wdata->state.calib_bboard[j][i] |= buf[offs + 1];
1478 offs += 2;
1479 }
1480 }
1481
1482 wdata->extension.input = input_allocate_device();
1483 if (!wdata->extension.input)
1484 return -ENOMEM;
1485
1486 ret = device_create_file(&wdata->hdev->dev,
1487 &dev_attr_bboard_calib);
1488 if (ret) {
1489 hid_err(wdata->hdev, "cannot create sysfs attribute\n");
1490 goto err_free;
1491 }
1492
1493 input_set_drvdata(wdata->extension.input, wdata);
1494 wdata->extension.input->open = wiimod_bboard_open;
1495 wdata->extension.input->close = wiimod_bboard_close;
1496 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1497 wdata->extension.input->id.bustype = wdata->hdev->bus;
1498 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1499 wdata->extension.input->id.product = wdata->hdev->product;
1500 wdata->extension.input->id.version = wdata->hdev->version;
1501 wdata->extension.input->name = WIIMOTE_NAME " Balance Board";
1502
1503 set_bit(EV_KEY, wdata->extension.input->evbit);
1504 set_bit(BTN_A, wdata->extension.input->keybit);
1505
1506 set_bit(EV_ABS, wdata->extension.input->evbit);
1507 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
1508 set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
1509 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
1510 set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
1511 input_set_abs_params(wdata->extension.input,
1512 ABS_HAT0X, 0, 65535, 2, 4);
1513 input_set_abs_params(wdata->extension.input,
1514 ABS_HAT0Y, 0, 65535, 2, 4);
1515 input_set_abs_params(wdata->extension.input,
1516 ABS_HAT1X, 0, 65535, 2, 4);
1517 input_set_abs_params(wdata->extension.input,
1518 ABS_HAT1Y, 0, 65535, 2, 4);
1519
1520 ret = input_register_device(wdata->extension.input);
1521 if (ret)
1522 goto err_file;
1523
1524 return 0;
1525
1526 err_file:
1527 device_remove_file(&wdata->hdev->dev,
1528 &dev_attr_bboard_calib);
1529 err_free:
1530 input_free_device(wdata->extension.input);
1531 wdata->extension.input = NULL;
1532 return ret;
1533 }
1534
1535 static void wiimod_bboard_remove(const struct wiimod_ops *ops,
1536 struct wiimote_data *wdata)
1537 {
1538 if (!wdata->extension.input)
1539 return;
1540
1541 input_unregister_device(wdata->extension.input);
1542 wdata->extension.input = NULL;
1543 device_remove_file(&wdata->hdev->dev,
1544 &dev_attr_bboard_calib);
1545 }
1546
1547 static const struct wiimod_ops wiimod_bboard = {
1548 .flags = WIIMOD_FLAG_EXT8,
1549 .arg = 0,
1550 .probe = wiimod_bboard_probe,
1551 .remove = wiimod_bboard_remove,
1552 .in_keys = wiimod_bboard_in_keys,
1553 .in_ext = wiimod_bboard_in_ext,
1554 };
1555
1556 /*
1557 * Pro Controller
1558 * Released with the Wii U was the Nintendo Wii U Pro Controller. It does not
1559 * work together with the classic Wii, but only with the new Wii U. However, it
1560 * uses the same protocol and provides a builtin "classic controller pro"
1561 * extension, few standard buttons, a rumble motor, 4 LEDs and a battery.
1562 * We provide all these via a standard extension device as the device doesn't
1563 * feature an extension port.
1564 */
1565
1566 enum wiimod_pro_keys {
1567 WIIMOD_PRO_KEY_A,
1568 WIIMOD_PRO_KEY_B,
1569 WIIMOD_PRO_KEY_X,
1570 WIIMOD_PRO_KEY_Y,
1571 WIIMOD_PRO_KEY_PLUS,
1572 WIIMOD_PRO_KEY_MINUS,
1573 WIIMOD_PRO_KEY_HOME,
1574 WIIMOD_PRO_KEY_LEFT,
1575 WIIMOD_PRO_KEY_RIGHT,
1576 WIIMOD_PRO_KEY_UP,
1577 WIIMOD_PRO_KEY_DOWN,
1578 WIIMOD_PRO_KEY_TL,
1579 WIIMOD_PRO_KEY_TR,
1580 WIIMOD_PRO_KEY_ZL,
1581 WIIMOD_PRO_KEY_ZR,
1582 WIIMOD_PRO_KEY_THUMBL,
1583 WIIMOD_PRO_KEY_THUMBR,
1584 WIIMOD_PRO_KEY_NUM,
1585 };
1586
1587 static const __u16 wiimod_pro_map[] = {
1588 BTN_EAST, /* WIIMOD_PRO_KEY_A */
1589 BTN_SOUTH, /* WIIMOD_PRO_KEY_B */
1590 BTN_NORTH, /* WIIMOD_PRO_KEY_X */
1591 BTN_WEST, /* WIIMOD_PRO_KEY_Y */
1592 BTN_START, /* WIIMOD_PRO_KEY_PLUS */
1593 BTN_SELECT, /* WIIMOD_PRO_KEY_MINUS */
1594 BTN_MODE, /* WIIMOD_PRO_KEY_HOME */
1595 BTN_DPAD_LEFT, /* WIIMOD_PRO_KEY_LEFT */
1596 BTN_DPAD_RIGHT, /* WIIMOD_PRO_KEY_RIGHT */
1597 BTN_DPAD_UP, /* WIIMOD_PRO_KEY_UP */
1598 BTN_DPAD_DOWN, /* WIIMOD_PRO_KEY_DOWN */
1599 BTN_TL, /* WIIMOD_PRO_KEY_TL */
1600 BTN_TR, /* WIIMOD_PRO_KEY_TR */
1601 BTN_TL2, /* WIIMOD_PRO_KEY_ZL */
1602 BTN_TR2, /* WIIMOD_PRO_KEY_ZR */
1603 BTN_THUMBL, /* WIIMOD_PRO_KEY_THUMBL */
1604 BTN_THUMBR, /* WIIMOD_PRO_KEY_THUMBR */
1605 };
1606
1607 static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
1608 {
1609 __s16 rx, ry, lx, ly;
1610
1611 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1612 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1613 * 1 | LX <7:0> |
1614 * -----+-----------------------+-----------------------+
1615 * 2 | 0 0 0 0 | LX <11:8> |
1616 * -----+-----------------------+-----------------------+
1617 * 3 | RX <7:0> |
1618 * -----+-----------------------+-----------------------+
1619 * 4 | 0 0 0 0 | RX <11:8> |
1620 * -----+-----------------------+-----------------------+
1621 * 5 | LY <7:0> |
1622 * -----+-----------------------+-----------------------+
1623 * 6 | 0 0 0 0 | LY <11:8> |
1624 * -----+-----------------------+-----------------------+
1625 * 7 | RY <7:0> |
1626 * -----+-----------------------+-----------------------+
1627 * 8 | 0 0 0 0 | RY <11:8> |
1628 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1629 * 9 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
1630 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1631 * 10 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
1632 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1633 * 11 | 1 | BATTERY | USB |CHARG|LTHUM|RTHUM|
1634 * -----+-----+-----------------+-----------+-----+-----+
1635 * All buttons are low-active (0 if pressed)
1636 * RX and RY are right analog stick
1637 * LX and LY are left analog stick
1638 * BLT is left trigger, BRT is right trigger.
1639 * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
1640 * BZL is left Z button and BZR is right Z button
1641 * B-, BH, B+ are +, HOME and - buttons
1642 * BB, BY, BA, BX are A, B, X, Y buttons
1643 *
1644 * Bits marked as 0/1 are unknown and never changed during tests.
1645 *
1646 * Not entirely verified:
1647 * CHARG: 1 if uncharging, 0 if charging
1648 * USB: 1 if not connected, 0 if connected
1649 * BATTERY: battery capacity from 000 (empty) to 100 (full)
1650 */
1651
1652 lx = (ext[0] & 0xff) | ((ext[1] & 0x0f) << 8);
1653 rx = (ext[2] & 0xff) | ((ext[3] & 0x0f) << 8);
1654 ly = (ext[4] & 0xff) | ((ext[5] & 0x0f) << 8);
1655 ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
1656
1657 /* zero-point offsets */
1658 lx -= 0x800;
1659 ly = 0x800 - ly;
1660 rx -= 0x800;
1661 ry = 0x800 - ry;
1662
1663 /* Trivial automatic calibration. We don't know any calibration data
1664 * in the EEPROM so we must use the first report to calibrate the
1665 * null-position of the analog sticks. Users can retrigger calibration
1666 * via sysfs, or set it explicitly. If data is off more than abs(500),
1667 * we skip calibration as the sticks are likely to be moved already. */
1668 if (!(wdata->state.flags & WIIPROTO_FLAG_PRO_CALIB_DONE)) {
1669 wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
1670 if (abs(lx) < 500)
1671 wdata->state.calib_pro_sticks[0] = -lx;
1672 if (abs(ly) < 500)
1673 wdata->state.calib_pro_sticks[1] = -ly;
1674 if (abs(rx) < 500)
1675 wdata->state.calib_pro_sticks[2] = -rx;
1676 if (abs(ry) < 500)
1677 wdata->state.calib_pro_sticks[3] = -ry;
1678 }
1679
1680 /* apply calibration data */
1681 lx += wdata->state.calib_pro_sticks[0];
1682 ly += wdata->state.calib_pro_sticks[1];
1683 rx += wdata->state.calib_pro_sticks[2];
1684 ry += wdata->state.calib_pro_sticks[3];
1685
1686 input_report_abs(wdata->extension.input, ABS_X, lx);
1687 input_report_abs(wdata->extension.input, ABS_Y, ly);
1688 input_report_abs(wdata->extension.input, ABS_RX, rx);
1689 input_report_abs(wdata->extension.input, ABS_RY, ry);
1690
1691 input_report_key(wdata->extension.input,
1692 wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
1693 !(ext[8] & 0x80));
1694 input_report_key(wdata->extension.input,
1695 wiimod_pro_map[WIIMOD_PRO_KEY_DOWN],
1696 !(ext[8] & 0x40));
1697 input_report_key(wdata->extension.input,
1698 wiimod_pro_map[WIIMOD_PRO_KEY_TL],
1699 !(ext[8] & 0x20));
1700 input_report_key(wdata->extension.input,
1701 wiimod_pro_map[WIIMOD_PRO_KEY_MINUS],
1702 !(ext[8] & 0x10));
1703 input_report_key(wdata->extension.input,
1704 wiimod_pro_map[WIIMOD_PRO_KEY_HOME],
1705 !(ext[8] & 0x08));
1706 input_report_key(wdata->extension.input,
1707 wiimod_pro_map[WIIMOD_PRO_KEY_PLUS],
1708 !(ext[8] & 0x04));
1709 input_report_key(wdata->extension.input,
1710 wiimod_pro_map[WIIMOD_PRO_KEY_TR],
1711 !(ext[8] & 0x02));
1712
1713 input_report_key(wdata->extension.input,
1714 wiimod_pro_map[WIIMOD_PRO_KEY_ZL],
1715 !(ext[9] & 0x80));
1716 input_report_key(wdata->extension.input,
1717 wiimod_pro_map[WIIMOD_PRO_KEY_B],
1718 !(ext[9] & 0x40));
1719 input_report_key(wdata->extension.input,
1720 wiimod_pro_map[WIIMOD_PRO_KEY_Y],
1721 !(ext[9] & 0x20));
1722 input_report_key(wdata->extension.input,
1723 wiimod_pro_map[WIIMOD_PRO_KEY_A],
1724 !(ext[9] & 0x10));
1725 input_report_key(wdata->extension.input,
1726 wiimod_pro_map[WIIMOD_PRO_KEY_X],
1727 !(ext[9] & 0x08));
1728 input_report_key(wdata->extension.input,
1729 wiimod_pro_map[WIIMOD_PRO_KEY_ZR],
1730 !(ext[9] & 0x04));
1731 input_report_key(wdata->extension.input,
1732 wiimod_pro_map[WIIMOD_PRO_KEY_LEFT],
1733 !(ext[9] & 0x02));
1734 input_report_key(wdata->extension.input,
1735 wiimod_pro_map[WIIMOD_PRO_KEY_UP],
1736 !(ext[9] & 0x01));
1737
1738 input_report_key(wdata->extension.input,
1739 wiimod_pro_map[WIIMOD_PRO_KEY_THUMBL],
1740 !(ext[10] & 0x02));
1741 input_report_key(wdata->extension.input,
1742 wiimod_pro_map[WIIMOD_PRO_KEY_THUMBR],
1743 !(ext[10] & 0x01));
1744
1745 input_sync(wdata->extension.input);
1746 }
1747
1748 static int wiimod_pro_open(struct input_dev *dev)
1749 {
1750 struct wiimote_data *wdata = input_get_drvdata(dev);
1751 unsigned long flags;
1752
1753 spin_lock_irqsave(&wdata->state.lock, flags);
1754 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1755 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1756 spin_unlock_irqrestore(&wdata->state.lock, flags);
1757
1758 return 0;
1759 }
1760
1761 static void wiimod_pro_close(struct input_dev *dev)
1762 {
1763 struct wiimote_data *wdata = input_get_drvdata(dev);
1764 unsigned long flags;
1765
1766 spin_lock_irqsave(&wdata->state.lock, flags);
1767 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1768 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1769 spin_unlock_irqrestore(&wdata->state.lock, flags);
1770 }
1771
1772 static int wiimod_pro_play(struct input_dev *dev, void *data,
1773 struct ff_effect *eff)
1774 {
1775 struct wiimote_data *wdata = input_get_drvdata(dev);
1776 __u8 value;
1777
1778 /*
1779 * The wiimote supports only a single rumble motor so if any magnitude
1780 * is set to non-zero then we start the rumble motor. If both are set to
1781 * zero, we stop the rumble motor.
1782 */
1783
1784 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
1785 value = 1;
1786 else
1787 value = 0;
1788
1789 /* Locking state.lock here might deadlock with input_event() calls.
1790 * schedule_work acts as barrier. Merging multiple changes is fine. */
1791 wdata->state.cache_rumble = value;
1792 schedule_work(&wdata->rumble_worker);
1793
1794 return 0;
1795 }
1796
1797 static ssize_t wiimod_pro_calib_show(struct device *dev,
1798 struct device_attribute *attr,
1799 char *out)
1800 {
1801 struct wiimote_data *wdata = dev_to_wii(dev);
1802 int r;
1803
1804 r = 0;
1805 r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[0]);
1806 r += sprintf(&out[r], "%+06hd ", wdata->state.calib_pro_sticks[1]);
1807 r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[2]);
1808 r += sprintf(&out[r], "%+06hd\n", wdata->state.calib_pro_sticks[3]);
1809
1810 return r;
1811 }
1812
1813 static ssize_t wiimod_pro_calib_store(struct device *dev,
1814 struct device_attribute *attr,
1815 const char *buf, size_t count)
1816 {
1817 struct wiimote_data *wdata = dev_to_wii(dev);
1818 int r;
1819 s16 x1, y1, x2, y2;
1820
1821 if (!strncmp(buf, "scan\n", 5)) {
1822 spin_lock_irq(&wdata->state.lock);
1823 wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
1824 spin_unlock_irq(&wdata->state.lock);
1825 } else {
1826 r = sscanf(buf, "%hd:%hd %hd:%hd", &x1, &y1, &x2, &y2);
1827 if (r != 4)
1828 return -EINVAL;
1829
1830 spin_lock_irq(&wdata->state.lock);
1831 wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
1832 spin_unlock_irq(&wdata->state.lock);
1833
1834 wdata->state.calib_pro_sticks[0] = x1;
1835 wdata->state.calib_pro_sticks[1] = y1;
1836 wdata->state.calib_pro_sticks[2] = x2;
1837 wdata->state.calib_pro_sticks[3] = y2;
1838 }
1839
1840 return strnlen(buf, PAGE_SIZE);
1841 }
1842
1843 static DEVICE_ATTR(pro_calib, S_IRUGO|S_IWUSR|S_IWGRP, wiimod_pro_calib_show,
1844 wiimod_pro_calib_store);
1845
1846 static int wiimod_pro_probe(const struct wiimod_ops *ops,
1847 struct wiimote_data *wdata)
1848 {
1849 int ret, i;
1850 unsigned long flags;
1851
1852 INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
1853 wdata->state.calib_pro_sticks[0] = 0;
1854 wdata->state.calib_pro_sticks[1] = 0;
1855 wdata->state.calib_pro_sticks[2] = 0;
1856 wdata->state.calib_pro_sticks[3] = 0;
1857
1858 spin_lock_irqsave(&wdata->state.lock, flags);
1859 wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
1860 spin_unlock_irqrestore(&wdata->state.lock, flags);
1861
1862 wdata->extension.input = input_allocate_device();
1863 if (!wdata->extension.input)
1864 return -ENOMEM;
1865
1866 set_bit(FF_RUMBLE, wdata->extension.input->ffbit);
1867 input_set_drvdata(wdata->extension.input, wdata);
1868
1869 if (input_ff_create_memless(wdata->extension.input, NULL,
1870 wiimod_pro_play)) {
1871 ret = -ENOMEM;
1872 goto err_free;
1873 }
1874
1875 ret = device_create_file(&wdata->hdev->dev,
1876 &dev_attr_pro_calib);
1877 if (ret) {
1878 hid_err(wdata->hdev, "cannot create sysfs attribute\n");
1879 goto err_free;
1880 }
1881
1882 wdata->extension.input->open = wiimod_pro_open;
1883 wdata->extension.input->close = wiimod_pro_close;
1884 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1885 wdata->extension.input->id.bustype = wdata->hdev->bus;
1886 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1887 wdata->extension.input->id.product = wdata->hdev->product;
1888 wdata->extension.input->id.version = wdata->hdev->version;
1889 wdata->extension.input->name = WIIMOTE_NAME " Pro Controller";
1890
1891 set_bit(EV_KEY, wdata->extension.input->evbit);
1892 for (i = 0; i < WIIMOD_PRO_KEY_NUM; ++i)
1893 set_bit(wiimod_pro_map[i],
1894 wdata->extension.input->keybit);
1895
1896 set_bit(EV_ABS, wdata->extension.input->evbit);
1897 set_bit(ABS_X, wdata->extension.input->absbit);
1898 set_bit(ABS_Y, wdata->extension.input->absbit);
1899 set_bit(ABS_RX, wdata->extension.input->absbit);
1900 set_bit(ABS_RY, wdata->extension.input->absbit);
1901 input_set_abs_params(wdata->extension.input,
1902 ABS_X, -0x400, 0x400, 4, 100);
1903 input_set_abs_params(wdata->extension.input,
1904 ABS_Y, -0x400, 0x400, 4, 100);
1905 input_set_abs_params(wdata->extension.input,
1906 ABS_RX, -0x400, 0x400, 4, 100);
1907 input_set_abs_params(wdata->extension.input,
1908 ABS_RY, -0x400, 0x400, 4, 100);
1909
1910 ret = input_register_device(wdata->extension.input);
1911 if (ret)
1912 goto err_file;
1913
1914 return 0;
1915
1916 err_file:
1917 device_remove_file(&wdata->hdev->dev,
1918 &dev_attr_pro_calib);
1919 err_free:
1920 input_free_device(wdata->extension.input);
1921 wdata->extension.input = NULL;
1922 return ret;
1923 }
1924
1925 static void wiimod_pro_remove(const struct wiimod_ops *ops,
1926 struct wiimote_data *wdata)
1927 {
1928 unsigned long flags;
1929
1930 if (!wdata->extension.input)
1931 return;
1932
1933 input_unregister_device(wdata->extension.input);
1934 wdata->extension.input = NULL;
1935 cancel_work_sync(&wdata->rumble_worker);
1936 device_remove_file(&wdata->hdev->dev,
1937 &dev_attr_pro_calib);
1938
1939 spin_lock_irqsave(&wdata->state.lock, flags);
1940 wiiproto_req_rumble(wdata, 0);
1941 spin_unlock_irqrestore(&wdata->state.lock, flags);
1942 }
1943
1944 static const struct wiimod_ops wiimod_pro = {
1945 .flags = WIIMOD_FLAG_EXT16,
1946 .arg = 0,
1947 .probe = wiimod_pro_probe,
1948 .remove = wiimod_pro_remove,
1949 .in_ext = wiimod_pro_in_ext,
1950 };
1951
1952 /*
1953 * Builtin Motion Plus
1954 * This module simply sets the WIIPROTO_FLAG_BUILTIN_MP protocol flag which
1955 * disables polling for Motion-Plus. This should be set only for devices which
1956 * don't allow MP hotplugging.
1957 */
1958
1959 static int wiimod_builtin_mp_probe(const struct wiimod_ops *ops,
1960 struct wiimote_data *wdata)
1961 {
1962 unsigned long flags;
1963
1964 spin_lock_irqsave(&wdata->state.lock, flags);
1965 wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
1966 spin_unlock_irqrestore(&wdata->state.lock, flags);
1967
1968 return 0;
1969 }
1970
1971 static void wiimod_builtin_mp_remove(const struct wiimod_ops *ops,
1972 struct wiimote_data *wdata)
1973 {
1974 unsigned long flags;
1975
1976 spin_lock_irqsave(&wdata->state.lock, flags);
1977 wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
1978 spin_unlock_irqrestore(&wdata->state.lock, flags);
1979 }
1980
1981 static const struct wiimod_ops wiimod_builtin_mp = {
1982 .flags = 0,
1983 .arg = 0,
1984 .probe = wiimod_builtin_mp_probe,
1985 .remove = wiimod_builtin_mp_remove,
1986 };
1987
1988 /*
1989 * No Motion Plus
1990 * This module simply sets the WIIPROTO_FLAG_NO_MP protocol flag which
1991 * disables motion-plus. This is needed for devices that advertise this but we
1992 * don't know how to use it (or whether it is actually present).
1993 */
1994
1995 static int wiimod_no_mp_probe(const struct wiimod_ops *ops,
1996 struct wiimote_data *wdata)
1997 {
1998 unsigned long flags;
1999
2000 spin_lock_irqsave(&wdata->state.lock, flags);
2001 wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
2002 spin_unlock_irqrestore(&wdata->state.lock, flags);
2003
2004 return 0;
2005 }
2006
2007 static void wiimod_no_mp_remove(const struct wiimod_ops *ops,
2008 struct wiimote_data *wdata)
2009 {
2010 unsigned long flags;
2011
2012 spin_lock_irqsave(&wdata->state.lock, flags);
2013 wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
2014 spin_unlock_irqrestore(&wdata->state.lock, flags);
2015 }
2016
2017 static const struct wiimod_ops wiimod_no_mp = {
2018 .flags = 0,
2019 .arg = 0,
2020 .probe = wiimod_no_mp_probe,
2021 .remove = wiimod_no_mp_remove,
2022 };
2023
2024 /*
2025 * Motion Plus
2026 * The Motion Plus extension provides rotation sensors (gyro) as a small
2027 * extension device for Wii Remotes. Many devices have them built-in so
2028 * you cannot see them from the outside.
2029 * Motion Plus extensions are special because they are on a separate extension
2030 * port and allow other extensions to be used simultaneously. This is all
2031 * handled by the Wiimote Core so we don't have to deal with it.
2032 */
2033
2034 static void wiimod_mp_in_mp(struct wiimote_data *wdata, const __u8 *ext)
2035 {
2036 __s32 x, y, z;
2037
2038 /* | 8 7 6 5 4 3 | 2 | 1 |
2039 * -----+------------------------------+-----+-----+
2040 * 1 | Yaw Speed <7:0> |
2041 * 2 | Roll Speed <7:0> |
2042 * 3 | Pitch Speed <7:0> |
2043 * -----+------------------------------+-----+-----+
2044 * 4 | Yaw Speed <13:8> | Yaw |Pitch|
2045 * -----+------------------------------+-----+-----+
2046 * 5 | Roll Speed <13:8> |Roll | Ext |
2047 * -----+------------------------------+-----+-----+
2048 * 6 | Pitch Speed <13:8> | 1 | 0 |
2049 * -----+------------------------------+-----+-----+
2050 * The single bits Yaw, Roll, Pitch in the lower right corner specify
2051 * whether the wiimote is rotating fast (0) or slow (1). Speed for slow
2052 * roation is 8192/440 units / deg/s and for fast rotation 8192/2000
2053 * units / deg/s. To get a linear scale for fast rotation we multiply
2054 * by 2000/440 = ~4.5454 and scale both fast and slow by 9 to match the
2055 * previous scale reported by this driver.
2056 * This leaves a linear scale with 8192*9/440 (~167.564) units / deg/s.
2057 * If the wiimote is not rotating the sensor reports 2^13 = 8192.
2058 * Ext specifies whether an extension is connected to the motionp.
2059 * which is parsed by wiimote-core.
2060 */
2061
2062 x = ext[0];
2063 y = ext[1];
2064 z = ext[2];
2065
2066 x |= (((__u16)ext[3]) << 6) & 0xff00;
2067 y |= (((__u16)ext[4]) << 6) & 0xff00;
2068 z |= (((__u16)ext[5]) << 6) & 0xff00;
2069
2070 x -= 8192;
2071 y -= 8192;
2072 z -= 8192;
2073
2074 if (!(ext[3] & 0x02))
2075 x = (x * 2000 * 9) / 440;
2076 else
2077 x *= 9;
2078 if (!(ext[4] & 0x02))
2079 y = (y * 2000 * 9) / 440;
2080 else
2081 y *= 9;
2082 if (!(ext[3] & 0x01))
2083 z = (z * 2000 * 9) / 440;
2084 else
2085 z *= 9;
2086
2087 input_report_abs(wdata->mp, ABS_RX, x);
2088 input_report_abs(wdata->mp, ABS_RY, y);
2089 input_report_abs(wdata->mp, ABS_RZ, z);
2090 input_sync(wdata->mp);
2091 }
2092
2093 static int wiimod_mp_open(struct input_dev *dev)
2094 {
2095 struct wiimote_data *wdata = input_get_drvdata(dev);
2096 unsigned long flags;
2097
2098 spin_lock_irqsave(&wdata->state.lock, flags);
2099 wdata->state.flags |= WIIPROTO_FLAG_MP_USED;
2100 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2101 __wiimote_schedule(wdata);
2102 spin_unlock_irqrestore(&wdata->state.lock, flags);
2103
2104 return 0;
2105 }
2106
2107 static void wiimod_mp_close(struct input_dev *dev)
2108 {
2109 struct wiimote_data *wdata = input_get_drvdata(dev);
2110 unsigned long flags;
2111
2112 spin_lock_irqsave(&wdata->state.lock, flags);
2113 wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
2114 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2115 __wiimote_schedule(wdata);
2116 spin_unlock_irqrestore(&wdata->state.lock, flags);
2117 }
2118
2119 static int wiimod_mp_probe(const struct wiimod_ops *ops,
2120 struct wiimote_data *wdata)
2121 {
2122 int ret;
2123
2124 wdata->mp = input_allocate_device();
2125 if (!wdata->mp)
2126 return -ENOMEM;
2127
2128 input_set_drvdata(wdata->mp, wdata);
2129 wdata->mp->open = wiimod_mp_open;
2130 wdata->mp->close = wiimod_mp_close;
2131 wdata->mp->dev.parent = &wdata->hdev->dev;
2132 wdata->mp->id.bustype = wdata->hdev->bus;
2133 wdata->mp->id.vendor = wdata->hdev->vendor;
2134 wdata->mp->id.product = wdata->hdev->product;
2135 wdata->mp->id.version = wdata->hdev->version;
2136 wdata->mp->name = WIIMOTE_NAME " Motion Plus";
2137
2138 set_bit(EV_ABS, wdata->mp->evbit);
2139 set_bit(ABS_RX, wdata->mp->absbit);
2140 set_bit(ABS_RY, wdata->mp->absbit);
2141 set_bit(ABS_RZ, wdata->mp->absbit);
2142 input_set_abs_params(wdata->mp,
2143 ABS_RX, -16000, 16000, 4, 8);
2144 input_set_abs_params(wdata->mp,
2145 ABS_RY, -16000, 16000, 4, 8);
2146 input_set_abs_params(wdata->mp,
2147 ABS_RZ, -16000, 16000, 4, 8);
2148
2149 ret = input_register_device(wdata->mp);
2150 if (ret)
2151 goto err_free;
2152
2153 return 0;
2154
2155 err_free:
2156 input_free_device(wdata->mp);
2157 wdata->mp = NULL;
2158 return ret;
2159 }
2160
2161 static void wiimod_mp_remove(const struct wiimod_ops *ops,
2162 struct wiimote_data *wdata)
2163 {
2164 if (!wdata->mp)
2165 return;
2166
2167 input_unregister_device(wdata->mp);
2168 wdata->mp = NULL;
2169 }
2170
2171 const struct wiimod_ops wiimod_mp = {
2172 .flags = 0,
2173 .arg = 0,
2174 .probe = wiimod_mp_probe,
2175 .remove = wiimod_mp_remove,
2176 .in_mp = wiimod_mp_in_mp,
2177 };
2178
2179 /* module table */
2180
2181 static const struct wiimod_ops wiimod_dummy;
2182
2183 const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
2184 [WIIMOD_KEYS] = &wiimod_keys,
2185 [WIIMOD_RUMBLE] = &wiimod_rumble,
2186 [WIIMOD_BATTERY] = &wiimod_battery,
2187 [WIIMOD_LED1] = &wiimod_leds[0],
2188 [WIIMOD_LED2] = &wiimod_leds[1],
2189 [WIIMOD_LED3] = &wiimod_leds[2],
2190 [WIIMOD_LED4] = &wiimod_leds[3],
2191 [WIIMOD_ACCEL] = &wiimod_accel,
2192 [WIIMOD_IR] = &wiimod_ir,
2193 [WIIMOD_BUILTIN_MP] = &wiimod_builtin_mp,
2194 [WIIMOD_NO_MP] = &wiimod_no_mp,
2195 };
2196
2197 const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
2198 [WIIMOTE_EXT_NONE] = &wiimod_dummy,
2199 [WIIMOTE_EXT_UNKNOWN] = &wiimod_dummy,
2200 [WIIMOTE_EXT_NUNCHUK] = &wiimod_nunchuk,
2201 [WIIMOTE_EXT_CLASSIC_CONTROLLER] = &wiimod_classic,
2202 [WIIMOTE_EXT_BALANCE_BOARD] = &wiimod_bboard,
2203 [WIIMOTE_EXT_PRO_CONTROLLER] = &wiimod_pro,
2204 };
Linux with added FPC-III support