1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Device Modules for Nintendo Wii / Wii U HID Driver
4 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
5 */
6
7 /*
8 */
9
10 /*
11 * Wiimote Modules
12 * Nintendo devices provide different peripherals and many new devices lack
13 * initial features like the IR camera. Therefore, each peripheral device is
14 * implemented as an independent module and we probe on each device only the
15 * modules for the hardware that really is available.
16 *
17 * Module registration is sequential. Unregistration is done in reverse order.
18 * After device detection, the needed modules are loaded. Users can trigger
19 * re-detection which causes all modules to be unloaded and then reload the
20 * modules for the new detected device.
21 *
22 * wdata->input is a shared input device. It is always initialized prior to
23 * module registration. If at least one registered module is marked as
24 * WIIMOD_FLAG_INPUT, then the input device will get registered after all
25 * modules were registered.
26 * Please note that it is unregistered _before_ the "remove" callbacks are
27 * called. This guarantees that no input interaction is done, anymore. However,
28 * the wiimote core keeps a reference to the input device so it is freed only
29 * after all modules were removed. It is safe to send events to unregistered
30 * input devices.
31 */
32
33 #include <linux/device.h>
34 #include <linux/hid.h>
35 #include <linux/input.h>
36 #include <linux/spinlock.h>
37 #include "hid-wiimote.h"
38
39 /*
40 * Keys
41 * The initial Wii Remote provided a bunch of buttons that are reported as
42 * part of the core protocol. Many later devices dropped these and report
43 * invalid data in the core button reports. Load this only on devices which
44 * correctly send button reports.
45 * It uses the shared input device.
46 */
47
48 static const __u16 wiimod_keys_map[] = {
49 KEY_LEFT, /* WIIPROTO_KEY_LEFT */
50 KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
51 KEY_UP, /* WIIPROTO_KEY_UP */
52 KEY_DOWN, /* WIIPROTO_KEY_DOWN */
53 KEY_NEXT, /* WIIPROTO_KEY_PLUS */
54 KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
55 BTN_1, /* WIIPROTO_KEY_ONE */
56 BTN_2, /* WIIPROTO_KEY_TWO */
57 BTN_A, /* WIIPROTO_KEY_A */
58 BTN_B, /* WIIPROTO_KEY_B */
59 BTN_MODE, /* WIIPROTO_KEY_HOME */
60 };
61
wiimod_keys_in_keys(struct wiimote_data * wdata,const __u8 * keys)62 static void wiimod_keys_in_keys(struct wiimote_data *wdata, const __u8 *keys)
63 {
64 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_LEFT],
65 !!(keys[0] & 0x01));
66 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_RIGHT],
67 !!(keys[0] & 0x02));
68 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_DOWN],
69 !!(keys[0] & 0x04));
70 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_UP],
71 !!(keys[0] & 0x08));
72 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_PLUS],
73 !!(keys[0] & 0x10));
74 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_TWO],
75 !!(keys[1] & 0x01));
76 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_ONE],
77 !!(keys[1] & 0x02));
78 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_B],
79 !!(keys[1] & 0x04));
80 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_A],
81 !!(keys[1] & 0x08));
82 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_MINUS],
83 !!(keys[1] & 0x10));
84 input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_HOME],
85 !!(keys[1] & 0x80));
86 input_sync(wdata->input);
87 }
88
wiimod_keys_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)89 static int wiimod_keys_probe(const struct wiimod_ops *ops,
90 struct wiimote_data *wdata)
91 {
92 unsigned int i;
93
94 set_bit(EV_KEY, wdata->input->evbit);
95 for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
96 set_bit(wiimod_keys_map[i], wdata->input->keybit);
97
98 return 0;
99 }
100
101 static const struct wiimod_ops wiimod_keys = {
102 .flags = WIIMOD_FLAG_INPUT,
103 .arg = 0,
104 .probe = wiimod_keys_probe,
105 .remove = NULL,
106 .in_keys = wiimod_keys_in_keys,
107 };
108
109 /*
110 * Rumble
111 * Nearly all devices provide a rumble feature. A small motor for
112 * force-feedback effects. We provide an FF_RUMBLE memless ff device on the
113 * shared input device if this module is loaded.
114 * The rumble motor is controlled via a flag on almost every output report so
115 * the wiimote core handles the rumble flag. But if a device doesn't provide
116 * the rumble motor, this flag shouldn't be set.
117 */
118
119 /* used by wiimod_rumble and wiipro_rumble */
wiimod_rumble_worker(struct work_struct * work)120 static void wiimod_rumble_worker(struct work_struct *work)
121 {
122 struct wiimote_data *wdata = container_of(work, struct wiimote_data,
123 rumble_worker);
124
125 spin_lock_irq(&wdata->state.lock);
126 wiiproto_req_rumble(wdata, wdata->state.cache_rumble);
127 spin_unlock_irq(&wdata->state.lock);
128 }
129
wiimod_rumble_play(struct input_dev * dev,void * data,struct ff_effect * eff)130 static int wiimod_rumble_play(struct input_dev *dev, void *data,
131 struct ff_effect *eff)
132 {
133 struct wiimote_data *wdata = input_get_drvdata(dev);
134 __u8 value;
135
136 /*
137 * The wiimote supports only a single rumble motor so if any magnitude
138 * is set to non-zero then we start the rumble motor. If both are set to
139 * zero, we stop the rumble motor.
140 */
141
142 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
143 value = 1;
144 else
145 value = 0;
146
147 /* Locking state.lock here might deadlock with input_event() calls.
148 * schedule_work acts as barrier. Merging multiple changes is fine. */
149 wdata->state.cache_rumble = value;
150 schedule_work(&wdata->rumble_worker);
151
152 return 0;
153 }
154
wiimod_rumble_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)155 static int wiimod_rumble_probe(const struct wiimod_ops *ops,
156 struct wiimote_data *wdata)
157 {
158 INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
159
160 set_bit(FF_RUMBLE, wdata->input->ffbit);
161 if (input_ff_create_memless(wdata->input, NULL, wiimod_rumble_play))
162 return -ENOMEM;
163
164 return 0;
165 }
166
wiimod_rumble_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)167 static void wiimod_rumble_remove(const struct wiimod_ops *ops,
168 struct wiimote_data *wdata)
169 {
170 unsigned long flags;
171
172 cancel_work_sync(&wdata->rumble_worker);
173
174 spin_lock_irqsave(&wdata->state.lock, flags);
175 wiiproto_req_rumble(wdata, 0);
176 spin_unlock_irqrestore(&wdata->state.lock, flags);
177 }
178
179 static const struct wiimod_ops wiimod_rumble = {
180 .flags = WIIMOD_FLAG_INPUT,
181 .arg = 0,
182 .probe = wiimod_rumble_probe,
183 .remove = wiimod_rumble_remove,
184 };
185
186 /*
187 * Battery
188 * 1 byte of battery capacity information is sent along every protocol status
189 * report. The wiimote core caches it but we try to update it on every
190 * user-space request.
191 * This is supported by nearly every device so it's almost always enabled.
192 */
193
194 static enum power_supply_property wiimod_battery_props[] = {
195 POWER_SUPPLY_PROP_CAPACITY,
196 POWER_SUPPLY_PROP_SCOPE,
197 };
198
wiimod_battery_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)199 static int wiimod_battery_get_property(struct power_supply *psy,
200 enum power_supply_property psp,
201 union power_supply_propval *val)
202 {
203 struct wiimote_data *wdata = power_supply_get_drvdata(psy);
204 int ret = 0, state;
205 unsigned long flags;
206
207 if (psp == POWER_SUPPLY_PROP_SCOPE) {
208 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
209 return 0;
210 } else if (psp != POWER_SUPPLY_PROP_CAPACITY) {
211 return -EINVAL;
212 }
213
214 ret = wiimote_cmd_acquire(wdata);
215 if (ret)
216 return ret;
217
218 spin_lock_irqsave(&wdata->state.lock, flags);
219 wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
220 wiiproto_req_status(wdata);
221 spin_unlock_irqrestore(&wdata->state.lock, flags);
222
223 wiimote_cmd_wait(wdata);
224 wiimote_cmd_release(wdata);
225
226 spin_lock_irqsave(&wdata->state.lock, flags);
227 state = wdata->state.cmd_battery;
228 spin_unlock_irqrestore(&wdata->state.lock, flags);
229
230 val->intval = state * 100 / 255;
231 return ret;
232 }
233
wiimod_battery_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)234 static int wiimod_battery_probe(const struct wiimod_ops *ops,
235 struct wiimote_data *wdata)
236 {
237 struct power_supply_config psy_cfg = { .drv_data = wdata, };
238 int ret;
239
240 wdata->battery_desc.properties = wiimod_battery_props;
241 wdata->battery_desc.num_properties = ARRAY_SIZE(wiimod_battery_props);
242 wdata->battery_desc.get_property = wiimod_battery_get_property;
243 wdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
244 wdata->battery_desc.use_for_apm = 0;
245 wdata->battery_desc.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
246 wdata->hdev->uniq);
247 if (!wdata->battery_desc.name)
248 return -ENOMEM;
249
250 wdata->battery = power_supply_register(&wdata->hdev->dev,
251 &wdata->battery_desc,
252 &psy_cfg);
253 if (IS_ERR(wdata->battery)) {
254 hid_err(wdata->hdev, "cannot register battery device\n");
255 ret = PTR_ERR(wdata->battery);
256 goto err_free;
257 }
258
259 power_supply_powers(wdata->battery, &wdata->hdev->dev);
260 return 0;
261
262 err_free:
263 kfree(wdata->battery_desc.name);
264 wdata->battery_desc.name = NULL;
265 return ret;
266 }
267
wiimod_battery_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)268 static void wiimod_battery_remove(const struct wiimod_ops *ops,
269 struct wiimote_data *wdata)
270 {
271 if (!wdata->battery_desc.name)
272 return;
273
274 power_supply_unregister(wdata->battery);
275 kfree(wdata->battery_desc.name);
276 wdata->battery_desc.name = NULL;
277 }
278
279 static const struct wiimod_ops wiimod_battery = {
280 .flags = 0,
281 .arg = 0,
282 .probe = wiimod_battery_probe,
283 .remove = wiimod_battery_remove,
284 };
285
286 /*
287 * LED
288 * 0 to 4 player LEDs are supported by devices. The "arg" field of the
289 * wiimod_ops structure specifies which LED this module controls. This allows
290 * to register a limited number of LEDs.
291 * State is managed by wiimote core.
292 */
293
wiimod_led_get(struct led_classdev * led_dev)294 static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
295 {
296 struct device *dev = led_dev->dev->parent;
297 struct wiimote_data *wdata = dev_to_wii(dev);
298 int i;
299 unsigned long flags;
300 bool value = false;
301
302 for (i = 0; i < 4; ++i) {
303 if (wdata->leds[i] == led_dev) {
304 spin_lock_irqsave(&wdata->state.lock, flags);
305 value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
306 spin_unlock_irqrestore(&wdata->state.lock, flags);
307 break;
308 }
309 }
310
311 return value ? LED_FULL : LED_OFF;
312 }
313
wiimod_led_set(struct led_classdev * led_dev,enum led_brightness value)314 static void wiimod_led_set(struct led_classdev *led_dev,
315 enum led_brightness value)
316 {
317 struct device *dev = led_dev->dev->parent;
318 struct wiimote_data *wdata = dev_to_wii(dev);
319 int i;
320 unsigned long flags;
321 __u8 state, flag;
322
323 for (i = 0; i < 4; ++i) {
324 if (wdata->leds[i] == led_dev) {
325 flag = WIIPROTO_FLAG_LED(i + 1);
326 spin_lock_irqsave(&wdata->state.lock, flags);
327 state = wdata->state.flags;
328 if (value == LED_OFF)
329 wiiproto_req_leds(wdata, state & ~flag);
330 else
331 wiiproto_req_leds(wdata, state | flag);
332 spin_unlock_irqrestore(&wdata->state.lock, flags);
333 break;
334 }
335 }
336 }
337
wiimod_led_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)338 static int wiimod_led_probe(const struct wiimod_ops *ops,
339 struct wiimote_data *wdata)
340 {
341 struct device *dev = &wdata->hdev->dev;
342 size_t namesz = strlen(dev_name(dev)) + 9;
343 struct led_classdev *led;
344 unsigned long flags;
345 char *name;
346 int ret;
347
348 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
349 if (!led)
350 return -ENOMEM;
351
352 name = (void*)&led[1];
353 snprintf(name, namesz, "%s:blue:p%lu", dev_name(dev), ops->arg);
354 led->name = name;
355 led->brightness = 0;
356 led->max_brightness = 1;
357 led->brightness_get = wiimod_led_get;
358 led->brightness_set = wiimod_led_set;
359
360 wdata->leds[ops->arg] = led;
361 ret = led_classdev_register(dev, led);
362 if (ret)
363 goto err_free;
364
365 /* enable LED1 to stop initial LED-blinking */
366 if (ops->arg == 0) {
367 spin_lock_irqsave(&wdata->state.lock, flags);
368 wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
369 spin_unlock_irqrestore(&wdata->state.lock, flags);
370 }
371
372 return 0;
373
374 err_free:
375 wdata->leds[ops->arg] = NULL;
376 kfree(led);
377 return ret;
378 }
379
wiimod_led_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)380 static void wiimod_led_remove(const struct wiimod_ops *ops,
381 struct wiimote_data *wdata)
382 {
383 if (!wdata->leds[ops->arg])
384 return;
385
386 led_classdev_unregister(wdata->leds[ops->arg]);
387 kfree(wdata->leds[ops->arg]);
388 wdata->leds[ops->arg] = NULL;
389 }
390
391 static const struct wiimod_ops wiimod_leds[4] = {
392 {
393 .flags = 0,
394 .arg = 0,
395 .probe = wiimod_led_probe,
396 .remove = wiimod_led_remove,
397 },
398 {
399 .flags = 0,
400 .arg = 1,
401 .probe = wiimod_led_probe,
402 .remove = wiimod_led_remove,
403 },
404 {
405 .flags = 0,
406 .arg = 2,
407 .probe = wiimod_led_probe,
408 .remove = wiimod_led_remove,
409 },
410 {
411 .flags = 0,
412 .arg = 3,
413 .probe = wiimod_led_probe,
414 .remove = wiimod_led_remove,
415 },
416 };
417
418 /*
419 * Accelerometer
420 * 3 axis accelerometer data is part of nearly all DRMs. If not supported by a
421 * device, it's mostly cleared to 0. This module parses this data and provides
422 * it via a separate input device.
423 */
424
wiimod_accel_in_accel(struct wiimote_data * wdata,const __u8 * accel)425 static void wiimod_accel_in_accel(struct wiimote_data *wdata,
426 const __u8 *accel)
427 {
428 __u16 x, y, z;
429
430 if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
431 return;
432
433 /*
434 * payload is: BB BB XX YY ZZ
435 * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
436 * contain the upper 8 bits of each value. The lower 2 bits are
437 * contained in the buttons data BB BB.
438 * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
439 * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
440 * accel value and bit 6 is the second bit of the Z value.
441 * The first bit of Y and Z values is not available and always set to 0.
442 * 0x200 is returned on no movement.
443 */
444
445 x = accel[2] << 2;
446 y = accel[3] << 2;
447 z = accel[4] << 2;
448
449 x |= (accel[0] >> 5) & 0x3;
450 y |= (accel[1] >> 4) & 0x2;
451 z |= (accel[1] >> 5) & 0x2;
452
453 input_report_abs(wdata->accel, ABS_RX, x - 0x200);
454 input_report_abs(wdata->accel, ABS_RY, y - 0x200);
455 input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
456 input_sync(wdata->accel);
457 }
458
wiimod_accel_open(struct input_dev * dev)459 static int wiimod_accel_open(struct input_dev *dev)
460 {
461 struct wiimote_data *wdata = input_get_drvdata(dev);
462 unsigned long flags;
463
464 spin_lock_irqsave(&wdata->state.lock, flags);
465 wiiproto_req_accel(wdata, true);
466 spin_unlock_irqrestore(&wdata->state.lock, flags);
467
468 return 0;
469 }
470
wiimod_accel_close(struct input_dev * dev)471 static void wiimod_accel_close(struct input_dev *dev)
472 {
473 struct wiimote_data *wdata = input_get_drvdata(dev);
474 unsigned long flags;
475
476 spin_lock_irqsave(&wdata->state.lock, flags);
477 wiiproto_req_accel(wdata, false);
478 spin_unlock_irqrestore(&wdata->state.lock, flags);
479 }
480
wiimod_accel_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)481 static int wiimod_accel_probe(const struct wiimod_ops *ops,
482 struct wiimote_data *wdata)
483 {
484 int ret;
485
486 wdata->accel = input_allocate_device();
487 if (!wdata->accel)
488 return -ENOMEM;
489
490 input_set_drvdata(wdata->accel, wdata);
491 wdata->accel->open = wiimod_accel_open;
492 wdata->accel->close = wiimod_accel_close;
493 wdata->accel->dev.parent = &wdata->hdev->dev;
494 wdata->accel->id.bustype = wdata->hdev->bus;
495 wdata->accel->id.vendor = wdata->hdev->vendor;
496 wdata->accel->id.product = wdata->hdev->product;
497 wdata->accel->id.version = wdata->hdev->version;
498 wdata->accel->name = WIIMOTE_NAME " Accelerometer";
499
500 set_bit(EV_ABS, wdata->accel->evbit);
501 set_bit(ABS_RX, wdata->accel->absbit);
502 set_bit(ABS_RY, wdata->accel->absbit);
503 set_bit(ABS_RZ, wdata->accel->absbit);
504 input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
505 input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
506 input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
507
508 ret = input_register_device(wdata->accel);
509 if (ret) {
510 hid_err(wdata->hdev, "cannot register input device\n");
511 goto err_free;
512 }
513
514 return 0;
515
516 err_free:
517 input_free_device(wdata->accel);
518 wdata->accel = NULL;
519 return ret;
520 }
521
wiimod_accel_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)522 static void wiimod_accel_remove(const struct wiimod_ops *ops,
523 struct wiimote_data *wdata)
524 {
525 if (!wdata->accel)
526 return;
527
528 input_unregister_device(wdata->accel);
529 wdata->accel = NULL;
530 }
531
532 static const struct wiimod_ops wiimod_accel = {
533 .flags = 0,
534 .arg = 0,
535 .probe = wiimod_accel_probe,
536 .remove = wiimod_accel_remove,
537 .in_accel = wiimod_accel_in_accel,
538 };
539
540 /*
541 * IR Cam
542 * Up to 4 IR sources can be tracked by a normal Wii Remote. The IR cam needs
543 * to be initialized with a fairly complex procedure and consumes a lot of
544 * power. Therefore, as long as no application uses the IR input device, it is
545 * kept offline.
546 * Nearly no other device than the normal Wii Remotes supports the IR cam so
547 * you can disable this module for these devices.
548 */
549
wiimod_ir_in_ir(struct wiimote_data * wdata,const __u8 * ir,bool packed,unsigned int id)550 static void wiimod_ir_in_ir(struct wiimote_data *wdata, const __u8 *ir,
551 bool packed, unsigned int id)
552 {
553 __u16 x, y;
554 __u8 xid, yid;
555 bool sync = false;
556
557 if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
558 return;
559
560 switch (id) {
561 case 0:
562 xid = ABS_HAT0X;
563 yid = ABS_HAT0Y;
564 break;
565 case 1:
566 xid = ABS_HAT1X;
567 yid = ABS_HAT1Y;
568 break;
569 case 2:
570 xid = ABS_HAT2X;
571 yid = ABS_HAT2Y;
572 break;
573 case 3:
574 xid = ABS_HAT3X;
575 yid = ABS_HAT3Y;
576 sync = true;
577 break;
578 default:
579 return;
580 }
581
582 /*
583 * Basic IR data is encoded into 3 bytes. The first two bytes are the
584 * lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
585 * of both.
586 * If data is packed, then the 3rd byte is put first and slightly
587 * reordered. This allows to interleave packed and non-packed data to
588 * have two IR sets in 5 bytes instead of 6.
589 * The resulting 10bit X/Y values are passed to the ABS_HAT? input dev.
590 */
591
592 if (packed) {
593 x = ir[1] | ((ir[0] & 0x03) << 8);
594 y = ir[2] | ((ir[0] & 0x0c) << 6);
595 } else {
596 x = ir[0] | ((ir[2] & 0x30) << 4);
597 y = ir[1] | ((ir[2] & 0xc0) << 2);
598 }
599
600 input_report_abs(wdata->ir, xid, x);
601 input_report_abs(wdata->ir, yid, y);
602
603 if (sync)
604 input_sync(wdata->ir);
605 }
606
wiimod_ir_change(struct wiimote_data * wdata,__u16 mode)607 static int wiimod_ir_change(struct wiimote_data *wdata, __u16 mode)
608 {
609 int ret;
610 unsigned long flags;
611 __u8 format = 0;
612 static const __u8 data_enable[] = { 0x01 };
613 static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
614 0x00, 0xaa, 0x00, 0x64 };
615 static const __u8 data_sens2[] = { 0x63, 0x03 };
616 static const __u8 data_fin[] = { 0x08 };
617
618 spin_lock_irqsave(&wdata->state.lock, flags);
619
620 if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
621 spin_unlock_irqrestore(&wdata->state.lock, flags);
622 return 0;
623 }
624
625 if (mode == 0) {
626 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
627 wiiproto_req_ir1(wdata, 0);
628 wiiproto_req_ir2(wdata, 0);
629 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
630 spin_unlock_irqrestore(&wdata->state.lock, flags);
631 return 0;
632 }
633
634 spin_unlock_irqrestore(&wdata->state.lock, flags);
635
636 ret = wiimote_cmd_acquire(wdata);
637 if (ret)
638 return ret;
639
640 /* send PIXEL CLOCK ENABLE cmd first */
641 spin_lock_irqsave(&wdata->state.lock, flags);
642 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
643 wiiproto_req_ir1(wdata, 0x06);
644 spin_unlock_irqrestore(&wdata->state.lock, flags);
645
646 ret = wiimote_cmd_wait(wdata);
647 if (ret)
648 goto unlock;
649 if (wdata->state.cmd_err) {
650 ret = -EIO;
651 goto unlock;
652 }
653
654 /* enable IR LOGIC */
655 spin_lock_irqsave(&wdata->state.lock, flags);
656 wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
657 wiiproto_req_ir2(wdata, 0x06);
658 spin_unlock_irqrestore(&wdata->state.lock, flags);
659
660 ret = wiimote_cmd_wait(wdata);
661 if (ret)
662 goto unlock;
663 if (wdata->state.cmd_err) {
664 ret = -EIO;
665 goto unlock;
666 }
667
668 /* enable IR cam but do not make it send data, yet */
669 ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
670 sizeof(data_enable));
671 if (ret)
672 goto unlock;
673
674 /* write first sensitivity block */
675 ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
676 sizeof(data_sens1));
677 if (ret)
678 goto unlock;
679
680 /* write second sensitivity block */
681 ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
682 sizeof(data_sens2));
683 if (ret)
684 goto unlock;
685
686 /* put IR cam into desired state */
687 switch (mode) {
688 case WIIPROTO_FLAG_IR_FULL:
689 format = 5;
690 break;
691 case WIIPROTO_FLAG_IR_EXT:
692 format = 3;
693 break;
694 case WIIPROTO_FLAG_IR_BASIC:
695 format = 1;
696 break;
697 }
698 ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
699 if (ret)
700 goto unlock;
701
702 /* make IR cam send data */
703 ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
704 if (ret)
705 goto unlock;
706
707 /* request new DRM mode compatible to IR mode */
708 spin_lock_irqsave(&wdata->state.lock, flags);
709 wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
710 wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
711 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
712 spin_unlock_irqrestore(&wdata->state.lock, flags);
713
714 unlock:
715 wiimote_cmd_release(wdata);
716 return ret;
717 }
718
wiimod_ir_open(struct input_dev * dev)719 static int wiimod_ir_open(struct input_dev *dev)
720 {
721 struct wiimote_data *wdata = input_get_drvdata(dev);
722
723 return wiimod_ir_change(wdata, WIIPROTO_FLAG_IR_BASIC);
724 }
725
wiimod_ir_close(struct input_dev * dev)726 static void wiimod_ir_close(struct input_dev *dev)
727 {
728 struct wiimote_data *wdata = input_get_drvdata(dev);
729
730 wiimod_ir_change(wdata, 0);
731 }
732
wiimod_ir_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)733 static int wiimod_ir_probe(const struct wiimod_ops *ops,
734 struct wiimote_data *wdata)
735 {
736 int ret;
737
738 wdata->ir = input_allocate_device();
739 if (!wdata->ir)
740 return -ENOMEM;
741
742 input_set_drvdata(wdata->ir, wdata);
743 wdata->ir->open = wiimod_ir_open;
744 wdata->ir->close = wiimod_ir_close;
745 wdata->ir->dev.parent = &wdata->hdev->dev;
746 wdata->ir->id.bustype = wdata->hdev->bus;
747 wdata->ir->id.vendor = wdata->hdev->vendor;
748 wdata->ir->id.product = wdata->hdev->product;
749 wdata->ir->id.version = wdata->hdev->version;
750 wdata->ir->name = WIIMOTE_NAME " IR";
751
752 set_bit(EV_ABS, wdata->ir->evbit);
753 set_bit(ABS_HAT0X, wdata->ir->absbit);
754 set_bit(ABS_HAT0Y, wdata->ir->absbit);
755 set_bit(ABS_HAT1X, wdata->ir->absbit);
756 set_bit(ABS_HAT1Y, wdata->ir->absbit);
757 set_bit(ABS_HAT2X, wdata->ir->absbit);
758 set_bit(ABS_HAT2Y, wdata->ir->absbit);
759 set_bit(ABS_HAT3X, wdata->ir->absbit);
760 set_bit(ABS_HAT3Y, wdata->ir->absbit);
761 input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
762 input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
763 input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
764 input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
765 input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
766 input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
767 input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
768 input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
769
770 ret = input_register_device(wdata->ir);
771 if (ret) {
772 hid_err(wdata->hdev, "cannot register input device\n");
773 goto err_free;
774 }
775
776 return 0;
777
778 err_free:
779 input_free_device(wdata->ir);
780 wdata->ir = NULL;
781 return ret;
782 }
783
wiimod_ir_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)784 static void wiimod_ir_remove(const struct wiimod_ops *ops,
785 struct wiimote_data *wdata)
786 {
787 if (!wdata->ir)
788 return;
789
790 input_unregister_device(wdata->ir);
791 wdata->ir = NULL;
792 }
793
794 static const struct wiimod_ops wiimod_ir = {
795 .flags = 0,
796 .arg = 0,
797 .probe = wiimod_ir_probe,
798 .remove = wiimod_ir_remove,
799 .in_ir = wiimod_ir_in_ir,
800 };
801
802 /*
803 * Nunchuk Extension
804 * The Nintendo Wii Nunchuk was the first official extension published by
805 * Nintendo. It provides two additional keys and a separate accelerometer. It
806 * can be hotplugged to standard Wii Remotes.
807 */
808
809 enum wiimod_nunchuk_keys {
810 WIIMOD_NUNCHUK_KEY_C,
811 WIIMOD_NUNCHUK_KEY_Z,
812 WIIMOD_NUNCHUK_KEY_NUM,
813 };
814
815 static const __u16 wiimod_nunchuk_map[] = {
816 BTN_C, /* WIIMOD_NUNCHUK_KEY_C */
817 BTN_Z, /* WIIMOD_NUNCHUK_KEY_Z */
818 };
819
wiimod_nunchuk_in_ext(struct wiimote_data * wdata,const __u8 * ext)820 static void wiimod_nunchuk_in_ext(struct wiimote_data *wdata, const __u8 *ext)
821 {
822 __s16 x, y, z, bx, by;
823
824 /* Byte | 8 7 | 6 5 | 4 3 | 2 | 1 |
825 * -----+----------+---------+---------+----+-----+
826 * 1 | Button X <7:0> |
827 * 2 | Button Y <7:0> |
828 * -----+----------+---------+---------+----+-----+
829 * 3 | Speed X <9:2> |
830 * 4 | Speed Y <9:2> |
831 * 5 | Speed Z <9:2> |
832 * -----+----------+---------+---------+----+-----+
833 * 6 | Z <1:0> | Y <1:0> | X <1:0> | BC | BZ |
834 * -----+----------+---------+---------+----+-----+
835 * Button X/Y is the analog stick. Speed X, Y and Z are the
836 * accelerometer data in the same format as the wiimote's accelerometer.
837 * The 6th byte contains the LSBs of the accelerometer data.
838 * BC and BZ are the C and Z buttons: 0 means pressed
839 *
840 * If reported interleaved with motionp, then the layout changes. The
841 * 5th and 6th byte changes to:
842 * -----+-----------------------------------+-----+
843 * 5 | Speed Z <9:3> | EXT |
844 * -----+--------+-----+-----+----+----+----+-----+
845 * 6 |Z <2:1> |Y <1>|X <1>| BC | BZ | 0 | 0 |
846 * -----+--------+-----+-----+----+----+----+-----+
847 * All three accelerometer values lose their LSB. The other data is
848 * still available but slightly moved.
849 *
850 * Center data for button values is 128. Center value for accelerometer
851 * values it 512 / 0x200
852 */
853
854 bx = ext[0];
855 by = ext[1];
856 bx -= 128;
857 by -= 128;
858
859 x = ext[2] << 2;
860 y = ext[3] << 2;
861 z = ext[4] << 2;
862
863 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
864 x |= (ext[5] >> 3) & 0x02;
865 y |= (ext[5] >> 4) & 0x02;
866 z &= ~0x4;
867 z |= (ext[5] >> 5) & 0x06;
868 } else {
869 x |= (ext[5] >> 2) & 0x03;
870 y |= (ext[5] >> 4) & 0x03;
871 z |= (ext[5] >> 6) & 0x03;
872 }
873
874 x -= 0x200;
875 y -= 0x200;
876 z -= 0x200;
877
878 input_report_abs(wdata->extension.input, ABS_HAT0X, bx);
879 input_report_abs(wdata->extension.input, ABS_HAT0Y, by);
880
881 input_report_abs(wdata->extension.input, ABS_RX, x);
882 input_report_abs(wdata->extension.input, ABS_RY, y);
883 input_report_abs(wdata->extension.input, ABS_RZ, z);
884
885 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
886 input_report_key(wdata->extension.input,
887 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
888 !(ext[5] & 0x04));
889 input_report_key(wdata->extension.input,
890 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
891 !(ext[5] & 0x08));
892 } else {
893 input_report_key(wdata->extension.input,
894 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
895 !(ext[5] & 0x01));
896 input_report_key(wdata->extension.input,
897 wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
898 !(ext[5] & 0x02));
899 }
900
901 input_sync(wdata->extension.input);
902 }
903
wiimod_nunchuk_open(struct input_dev * dev)904 static int wiimod_nunchuk_open(struct input_dev *dev)
905 {
906 struct wiimote_data *wdata = input_get_drvdata(dev);
907 unsigned long flags;
908
909 spin_lock_irqsave(&wdata->state.lock, flags);
910 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
911 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
912 spin_unlock_irqrestore(&wdata->state.lock, flags);
913
914 return 0;
915 }
916
wiimod_nunchuk_close(struct input_dev * dev)917 static void wiimod_nunchuk_close(struct input_dev *dev)
918 {
919 struct wiimote_data *wdata = input_get_drvdata(dev);
920 unsigned long flags;
921
922 spin_lock_irqsave(&wdata->state.lock, flags);
923 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
924 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
925 spin_unlock_irqrestore(&wdata->state.lock, flags);
926 }
927
wiimod_nunchuk_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)928 static int wiimod_nunchuk_probe(const struct wiimod_ops *ops,
929 struct wiimote_data *wdata)
930 {
931 int ret, i;
932
933 wdata->extension.input = input_allocate_device();
934 if (!wdata->extension.input)
935 return -ENOMEM;
936
937 input_set_drvdata(wdata->extension.input, wdata);
938 wdata->extension.input->open = wiimod_nunchuk_open;
939 wdata->extension.input->close = wiimod_nunchuk_close;
940 wdata->extension.input->dev.parent = &wdata->hdev->dev;
941 wdata->extension.input->id.bustype = wdata->hdev->bus;
942 wdata->extension.input->id.vendor = wdata->hdev->vendor;
943 wdata->extension.input->id.product = wdata->hdev->product;
944 wdata->extension.input->id.version = wdata->hdev->version;
945 wdata->extension.input->name = WIIMOTE_NAME " Nunchuk";
946
947 set_bit(EV_KEY, wdata->extension.input->evbit);
948 for (i = 0; i < WIIMOD_NUNCHUK_KEY_NUM; ++i)
949 set_bit(wiimod_nunchuk_map[i],
950 wdata->extension.input->keybit);
951
952 set_bit(EV_ABS, wdata->extension.input->evbit);
953 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
954 set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
955 input_set_abs_params(wdata->extension.input,
956 ABS_HAT0X, -120, 120, 2, 4);
957 input_set_abs_params(wdata->extension.input,
958 ABS_HAT0Y, -120, 120, 2, 4);
959 set_bit(ABS_RX, wdata->extension.input->absbit);
960 set_bit(ABS_RY, wdata->extension.input->absbit);
961 set_bit(ABS_RZ, wdata->extension.input->absbit);
962 input_set_abs_params(wdata->extension.input,
963 ABS_RX, -500, 500, 2, 4);
964 input_set_abs_params(wdata->extension.input,
965 ABS_RY, -500, 500, 2, 4);
966 input_set_abs_params(wdata->extension.input,
967 ABS_RZ, -500, 500, 2, 4);
968
969 ret = input_register_device(wdata->extension.input);
970 if (ret)
971 goto err_free;
972
973 return 0;
974
975 err_free:
976 input_free_device(wdata->extension.input);
977 wdata->extension.input = NULL;
978 return ret;
979 }
980
wiimod_nunchuk_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)981 static void wiimod_nunchuk_remove(const struct wiimod_ops *ops,
982 struct wiimote_data *wdata)
983 {
984 if (!wdata->extension.input)
985 return;
986
987 input_unregister_device(wdata->extension.input);
988 wdata->extension.input = NULL;
989 }
990
991 static const struct wiimod_ops wiimod_nunchuk = {
992 .flags = 0,
993 .arg = 0,
994 .probe = wiimod_nunchuk_probe,
995 .remove = wiimod_nunchuk_remove,
996 .in_ext = wiimod_nunchuk_in_ext,
997 };
998
999 /*
1000 * Classic Controller
1001 * Another official extension from Nintendo. It provides a classic
1002 * gamecube-like controller that can be hotplugged on the Wii Remote.
1003 * It has several hardware buttons and switches that are all reported via
1004 * a normal extension device.
1005 */
1006
1007 enum wiimod_classic_keys {
1008 WIIMOD_CLASSIC_KEY_A,
1009 WIIMOD_CLASSIC_KEY_B,
1010 WIIMOD_CLASSIC_KEY_X,
1011 WIIMOD_CLASSIC_KEY_Y,
1012 WIIMOD_CLASSIC_KEY_ZL,
1013 WIIMOD_CLASSIC_KEY_ZR,
1014 WIIMOD_CLASSIC_KEY_PLUS,
1015 WIIMOD_CLASSIC_KEY_MINUS,
1016 WIIMOD_CLASSIC_KEY_HOME,
1017 WIIMOD_CLASSIC_KEY_LEFT,
1018 WIIMOD_CLASSIC_KEY_RIGHT,
1019 WIIMOD_CLASSIC_KEY_UP,
1020 WIIMOD_CLASSIC_KEY_DOWN,
1021 WIIMOD_CLASSIC_KEY_LT,
1022 WIIMOD_CLASSIC_KEY_RT,
1023 WIIMOD_CLASSIC_KEY_NUM,
1024 };
1025
1026 static const __u16 wiimod_classic_map[] = {
1027 BTN_A, /* WIIMOD_CLASSIC_KEY_A */
1028 BTN_B, /* WIIMOD_CLASSIC_KEY_B */
1029 BTN_X, /* WIIMOD_CLASSIC_KEY_X */
1030 BTN_Y, /* WIIMOD_CLASSIC_KEY_Y */
1031 BTN_TL2, /* WIIMOD_CLASSIC_KEY_ZL */
1032 BTN_TR2, /* WIIMOD_CLASSIC_KEY_ZR */
1033 KEY_NEXT, /* WIIMOD_CLASSIC_KEY_PLUS */
1034 KEY_PREVIOUS, /* WIIMOD_CLASSIC_KEY_MINUS */
1035 BTN_MODE, /* WIIMOD_CLASSIC_KEY_HOME */
1036 KEY_LEFT, /* WIIMOD_CLASSIC_KEY_LEFT */
1037 KEY_RIGHT, /* WIIMOD_CLASSIC_KEY_RIGHT */
1038 KEY_UP, /* WIIMOD_CLASSIC_KEY_UP */
1039 KEY_DOWN, /* WIIMOD_CLASSIC_KEY_DOWN */
1040 BTN_TL, /* WIIMOD_CLASSIC_KEY_LT */
1041 BTN_TR, /* WIIMOD_CLASSIC_KEY_RT */
1042 };
1043
wiimod_classic_in_ext(struct wiimote_data * wdata,const __u8 * ext)1044 static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
1045 {
1046 __s8 rx, ry, lx, ly, lt, rt;
1047
1048 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1049 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1050 * 1 | RX <5:4> | LX <5:0> |
1051 * 2 | RX <3:2> | LY <5:0> |
1052 * -----+-----+-----+-----+-----------------------------+
1053 * 3 |RX<1>| LT <5:4> | RY <5:1> |
1054 * -----+-----+-----------+-----------------------------+
1055 * 4 | LT <3:1> | RT <5:1> |
1056 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1057 * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
1058 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1059 * 6 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
1060 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1061 * All buttons are 0 if pressed
1062 * RX and RY are right analog stick
1063 * LX and LY are left analog stick
1064 * LT is left trigger, RT is right trigger
1065 * BLT is 0 if left trigger is fully pressed
1066 * BRT is 0 if right trigger is fully pressed
1067 * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
1068 * BZL is left Z button and BZR is right Z button
1069 * B-, BH, B+ are +, HOME and - buttons
1070 * BB, BY, BA, BX are A, B, X, Y buttons
1071 * LSB of RX, RY, LT, and RT are not transmitted and always 0.
1072 *
1073 * With motionp enabled it changes slightly to this:
1074 * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1075 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1076 * 1 | RX <5:4> | LX <5:1> | BDU |
1077 * 2 | RX <3:2> | LY <5:1> | BDL |
1078 * -----+-----+-----+-----+-----------------------+-----+
1079 * 3 |RX<1>| LT <5:4> | RY <5:1> |
1080 * -----+-----+-----------+-----------------------------+
1081 * 4 | LT <3:1> | RT <5:1> |
1082 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1083 * 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | EXT |
1084 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1085 * 6 | BZL | BB | BY | BA | BX | BZR | 0 | 0 |
1086 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1087 * Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
1088 * is the same as before.
1089 */
1090
1091 static const s8 digital_to_analog[3] = {0x20, 0, -0x20};
1092
1093 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
1094 if (wiimote_dpad_as_analog) {
1095 lx = digital_to_analog[1 - !(ext[4] & 0x80)
1096 + !(ext[1] & 0x01)];
1097 ly = digital_to_analog[1 - !(ext[4] & 0x40)
1098 + !(ext[0] & 0x01)];
1099 } else {
1100 lx = (ext[0] & 0x3e) - 0x20;
1101 ly = (ext[1] & 0x3e) - 0x20;
1102 }
1103 } else {
1104 if (wiimote_dpad_as_analog) {
1105 lx = digital_to_analog[1 - !(ext[4] & 0x80)
1106 + !(ext[5] & 0x02)];
1107 ly = digital_to_analog[1 - !(ext[4] & 0x40)
1108 + !(ext[5] & 0x01)];
1109 } else {
1110 lx = (ext[0] & 0x3f) - 0x20;
1111 ly = (ext[1] & 0x3f) - 0x20;
1112 }
1113 }
1114
1115 rx = (ext[0] >> 3) & 0x18;
1116 rx |= (ext[1] >> 5) & 0x06;
1117 rx |= (ext[2] >> 7) & 0x01;
1118 ry = ext[2] & 0x1f;
1119
1120 rt = ext[3] & 0x1f;
1121 lt = (ext[2] >> 2) & 0x18;
1122 lt |= (ext[3] >> 5) & 0x07;
1123
1124 rx <<= 1;
1125 ry <<= 1;
1126 rt <<= 1;
1127 lt <<= 1;
1128
1129 input_report_abs(wdata->extension.input, ABS_HAT1X, lx);
1130 input_report_abs(wdata->extension.input, ABS_HAT1Y, ly);
1131 input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20);
1132 input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20);
1133 input_report_abs(wdata->extension.input, ABS_HAT3X, rt);
1134 input_report_abs(wdata->extension.input, ABS_HAT3Y, lt);
1135
1136 input_report_key(wdata->extension.input,
1137 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT],
1138 !(ext[4] & 0x20));
1139 input_report_key(wdata->extension.input,
1140 wiimod_classic_map[WIIMOD_CLASSIC_KEY_MINUS],
1141 !(ext[4] & 0x10));
1142 input_report_key(wdata->extension.input,
1143 wiimod_classic_map[WIIMOD_CLASSIC_KEY_HOME],
1144 !(ext[4] & 0x08));
1145 input_report_key(wdata->extension.input,
1146 wiimod_classic_map[WIIMOD_CLASSIC_KEY_PLUS],
1147 !(ext[4] & 0x04));
1148 input_report_key(wdata->extension.input,
1149 wiimod_classic_map[WIIMOD_CLASSIC_KEY_RT],
1150 !(ext[4] & 0x02));
1151 input_report_key(wdata->extension.input,
1152 wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZL],
1153 !(ext[5] & 0x80));
1154 input_report_key(wdata->extension.input,
1155 wiimod_classic_map[WIIMOD_CLASSIC_KEY_B],
1156 !(ext[5] & 0x40));
1157 input_report_key(wdata->extension.input,
1158 wiimod_classic_map[WIIMOD_CLASSIC_KEY_Y],
1159 !(ext[5] & 0x20));
1160 input_report_key(wdata->extension.input,
1161 wiimod_classic_map[WIIMOD_CLASSIC_KEY_A],
1162 !(ext[5] & 0x10));
1163 input_report_key(wdata->extension.input,
1164 wiimod_classic_map[WIIMOD_CLASSIC_KEY_X],
1165 !(ext[5] & 0x08));
1166 input_report_key(wdata->extension.input,
1167 wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR],
1168 !(ext[5] & 0x04));
1169
1170 if (!wiimote_dpad_as_analog) {
1171 input_report_key(wdata->extension.input,
1172 wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
1173 !(ext[4] & 0x80));
1174 input_report_key(wdata->extension.input,
1175 wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
1176 !(ext[4] & 0x40));
1177
1178 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
1179 input_report_key(wdata->extension.input,
1180 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
1181 !(ext[1] & 0x01));
1182 input_report_key(wdata->extension.input,
1183 wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
1184 !(ext[0] & 0x01));
1185 } else {
1186 input_report_key(wdata->extension.input,
1187 wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
1188 !(ext[5] & 0x02));
1189 input_report_key(wdata->extension.input,
1190 wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
1191 !(ext[5] & 0x01));
1192 }
1193 }
1194
1195 input_sync(wdata->extension.input);
1196 }
1197
wiimod_classic_open(struct input_dev * dev)1198 static int wiimod_classic_open(struct input_dev *dev)
1199 {
1200 struct wiimote_data *wdata = input_get_drvdata(dev);
1201 unsigned long flags;
1202
1203 spin_lock_irqsave(&wdata->state.lock, flags);
1204 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1205 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1206 spin_unlock_irqrestore(&wdata->state.lock, flags);
1207
1208 return 0;
1209 }
1210
wiimod_classic_close(struct input_dev * dev)1211 static void wiimod_classic_close(struct input_dev *dev)
1212 {
1213 struct wiimote_data *wdata = input_get_drvdata(dev);
1214 unsigned long flags;
1215
1216 spin_lock_irqsave(&wdata->state.lock, flags);
1217 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1218 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1219 spin_unlock_irqrestore(&wdata->state.lock, flags);
1220 }
1221
wiimod_classic_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)1222 static int wiimod_classic_probe(const struct wiimod_ops *ops,
1223 struct wiimote_data *wdata)
1224 {
1225 int ret, i;
1226
1227 wdata->extension.input = input_allocate_device();
1228 if (!wdata->extension.input)
1229 return -ENOMEM;
1230
1231 input_set_drvdata(wdata->extension.input, wdata);
1232 wdata->extension.input->open = wiimod_classic_open;
1233 wdata->extension.input->close = wiimod_classic_close;
1234 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1235 wdata->extension.input->id.bustype = wdata->hdev->bus;
1236 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1237 wdata->extension.input->id.product = wdata->hdev->product;
1238 wdata->extension.input->id.version = wdata->hdev->version;
1239 wdata->extension.input->name = WIIMOTE_NAME " Classic Controller";
1240
1241 set_bit(EV_KEY, wdata->extension.input->evbit);
1242 for (i = 0; i < WIIMOD_CLASSIC_KEY_NUM; ++i)
1243 set_bit(wiimod_classic_map[i],
1244 wdata->extension.input->keybit);
1245
1246 set_bit(EV_ABS, wdata->extension.input->evbit);
1247 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
1248 set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
1249 set_bit(ABS_HAT2X, wdata->extension.input->absbit);
1250 set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
1251 set_bit(ABS_HAT3X, wdata->extension.input->absbit);
1252 set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
1253 input_set_abs_params(wdata->extension.input,
1254 ABS_HAT1X, -30, 30, 1, 1);
1255 input_set_abs_params(wdata->extension.input,
1256 ABS_HAT1Y, -30, 30, 1, 1);
1257 input_set_abs_params(wdata->extension.input,
1258 ABS_HAT2X, -30, 30, 1, 1);
1259 input_set_abs_params(wdata->extension.input,
1260 ABS_HAT2Y, -30, 30, 1, 1);
1261 input_set_abs_params(wdata->extension.input,
1262 ABS_HAT3X, -30, 30, 1, 1);
1263 input_set_abs_params(wdata->extension.input,
1264 ABS_HAT3Y, -30, 30, 1, 1);
1265
1266 ret = input_register_device(wdata->extension.input);
1267 if (ret)
1268 goto err_free;
1269
1270 return 0;
1271
1272 err_free:
1273 input_free_device(wdata->extension.input);
1274 wdata->extension.input = NULL;
1275 return ret;
1276 }
1277
wiimod_classic_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)1278 static void wiimod_classic_remove(const struct wiimod_ops *ops,
1279 struct wiimote_data *wdata)
1280 {
1281 if (!wdata->extension.input)
1282 return;
1283
1284 input_unregister_device(wdata->extension.input);
1285 wdata->extension.input = NULL;
1286 }
1287
1288 static const struct wiimod_ops wiimod_classic = {
1289 .flags = 0,
1290 .arg = 0,
1291 .probe = wiimod_classic_probe,
1292 .remove = wiimod_classic_remove,
1293 .in_ext = wiimod_classic_in_ext,
1294 };
1295
1296 /*
1297 * Balance Board Extension
1298 * The Nintendo Wii Balance Board provides four hardware weight sensor plus a
1299 * single push button. No other peripherals are available. However, the
1300 * balance-board data is sent via a standard Wii Remote extension. All other
1301 * data for non-present hardware is zeroed out.
1302 * Some 3rd party devices react allergic if we try to access normal Wii Remote
1303 * hardware, so this extension module should be the only module that is loaded
1304 * on balance boards.
1305 * The balance board needs 8 bytes extension data instead of basic 6 bytes so
1306 * it needs the WIIMOD_FLAG_EXT8 flag.
1307 */
1308
wiimod_bboard_in_keys(struct wiimote_data * wdata,const __u8 * keys)1309 static void wiimod_bboard_in_keys(struct wiimote_data *wdata, const __u8 *keys)
1310 {
1311 input_report_key(wdata->extension.input, BTN_A,
1312 !!(keys[1] & 0x08));
1313 input_sync(wdata->extension.input);
1314 }
1315
wiimod_bboard_in_ext(struct wiimote_data * wdata,const __u8 * ext)1316 static void wiimod_bboard_in_ext(struct wiimote_data *wdata,
1317 const __u8 *ext)
1318 {
1319 __s32 val[4], tmp, div;
1320 unsigned int i;
1321 struct wiimote_state *s = &wdata->state;
1322
1323 /*
1324 * Balance board data layout:
1325 *
1326 * Byte | 8 7 6 5 4 3 2 1 |
1327 * -----+--------------------------+
1328 * 1 | Top Right <15:8> |
1329 * 2 | Top Right <7:0> |
1330 * -----+--------------------------+
1331 * 3 | Bottom Right <15:8> |
1332 * 4 | Bottom Right <7:0> |
1333 * -----+--------------------------+
1334 * 5 | Top Left <15:8> |
1335 * 6 | Top Left <7:0> |
1336 * -----+--------------------------+
1337 * 7 | Bottom Left <15:8> |
1338 * 8 | Bottom Left <7:0> |
1339 * -----+--------------------------+
1340 *
1341 * These values represent the weight-measurements of the Wii-balance
1342 * board with 16bit precision.
1343 *
1344 * The balance-board is never reported interleaved with motionp.
1345 */
1346
1347 val[0] = ext[0];
1348 val[0] <<= 8;
1349 val[0] |= ext[1];
1350
1351 val[1] = ext[2];
1352 val[1] <<= 8;
1353 val[1] |= ext[3];
1354
1355 val[2] = ext[4];
1356 val[2] <<= 8;
1357 val[2] |= ext[5];
1358
1359 val[3] = ext[6];
1360 val[3] <<= 8;
1361 val[3] |= ext[7];
1362
1363 /* apply calibration data */
1364 for (i = 0; i < 4; i++) {
1365 if (val[i] <= s->calib_bboard[i][0]) {
1366 tmp = 0;
1367 } else if (val[i] < s->calib_bboard[i][1]) {
1368 tmp = val[i] - s->calib_bboard[i][0];
1369 tmp *= 1700;
1370 div = s->calib_bboard[i][1] - s->calib_bboard[i][0];
1371 tmp /= div ? div : 1;
1372 } else {
1373 tmp = val[i] - s->calib_bboard[i][1];
1374 tmp *= 1700;
1375 div = s->calib_bboard[i][2] - s->calib_bboard[i][1];
1376 tmp /= div ? div : 1;
1377 tmp += 1700;
1378 }
1379 val[i] = tmp;
1380 }
1381
1382 input_report_abs(wdata->extension.input, ABS_HAT0X, val[0]);
1383 input_report_abs(wdata->extension.input, ABS_HAT0Y, val[1]);
1384 input_report_abs(wdata->extension.input, ABS_HAT1X, val[2]);
1385 input_report_abs(wdata->extension.input, ABS_HAT1Y, val[3]);
1386 input_sync(wdata->extension.input);
1387 }
1388
wiimod_bboard_open(struct input_dev * dev)1389 static int wiimod_bboard_open(struct input_dev *dev)
1390 {
1391 struct wiimote_data *wdata = input_get_drvdata(dev);
1392 unsigned long flags;
1393
1394 spin_lock_irqsave(&wdata->state.lock, flags);
1395 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1396 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1397 spin_unlock_irqrestore(&wdata->state.lock, flags);
1398
1399 return 0;
1400 }
1401
wiimod_bboard_close(struct input_dev * dev)1402 static void wiimod_bboard_close(struct input_dev *dev)
1403 {
1404 struct wiimote_data *wdata = input_get_drvdata(dev);
1405 unsigned long flags;
1406
1407 spin_lock_irqsave(&wdata->state.lock, flags);
1408 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1409 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1410 spin_unlock_irqrestore(&wdata->state.lock, flags);
1411 }
1412
wiimod_bboard_calib_show(struct device * dev,struct device_attribute * attr,char * out)1413 static ssize_t wiimod_bboard_calib_show(struct device *dev,
1414 struct device_attribute *attr,
1415 char *out)
1416 {
1417 struct wiimote_data *wdata = dev_to_wii(dev);
1418 int i, j, ret;
1419 __u16 val;
1420 __u8 buf[24], offs;
1421
1422 ret = wiimote_cmd_acquire(wdata);
1423 if (ret)
1424 return ret;
1425
1426 ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
1427 if (ret != 12) {
1428 wiimote_cmd_release(wdata);
1429 return ret < 0 ? ret : -EIO;
1430 }
1431 ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
1432 if (ret != 12) {
1433 wiimote_cmd_release(wdata);
1434 return ret < 0 ? ret : -EIO;
1435 }
1436
1437 wiimote_cmd_release(wdata);
1438
1439 spin_lock_irq(&wdata->state.lock);
1440 offs = 0;
1441 for (i = 0; i < 3; ++i) {
1442 for (j = 0; j < 4; ++j) {
1443 wdata->state.calib_bboard[j][i] = buf[offs];
1444 wdata->state.calib_bboard[j][i] <<= 8;
1445 wdata->state.calib_bboard[j][i] |= buf[offs + 1];
1446 offs += 2;
1447 }
1448 }
1449 spin_unlock_irq(&wdata->state.lock);
1450
1451 ret = 0;
1452 for (i = 0; i < 3; ++i) {
1453 for (j = 0; j < 4; ++j) {
1454 val = wdata->state.calib_bboard[j][i];
1455 if (i == 2 && j == 3)
1456 ret += sprintf(&out[ret], "%04x\n", val);
1457 else
1458 ret += sprintf(&out[ret], "%04x:", val);
1459 }
1460 }
1461
1462 return ret;
1463 }
1464
1465 static DEVICE_ATTR(bboard_calib, S_IRUGO, wiimod_bboard_calib_show, NULL);
1466
wiimod_bboard_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)1467 static int wiimod_bboard_probe(const struct wiimod_ops *ops,
1468 struct wiimote_data *wdata)
1469 {
1470 int ret, i, j;
1471 __u8 buf[24], offs;
1472
1473 wiimote_cmd_acquire_noint(wdata);
1474
1475 ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
1476 if (ret != 12) {
1477 wiimote_cmd_release(wdata);
1478 return ret < 0 ? ret : -EIO;
1479 }
1480 ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
1481 if (ret != 12) {
1482 wiimote_cmd_release(wdata);
1483 return ret < 0 ? ret : -EIO;
1484 }
1485
1486 wiimote_cmd_release(wdata);
1487
1488 offs = 0;
1489 for (i = 0; i < 3; ++i) {
1490 for (j = 0; j < 4; ++j) {
1491 wdata->state.calib_bboard[j][i] = buf[offs];
1492 wdata->state.calib_bboard[j][i] <<= 8;
1493 wdata->state.calib_bboard[j][i] |= buf[offs + 1];
1494 offs += 2;
1495 }
1496 }
1497
1498 wdata->extension.input = input_allocate_device();
1499 if (!wdata->extension.input)
1500 return -ENOMEM;
1501
1502 ret = device_create_file(&wdata->hdev->dev,
1503 &dev_attr_bboard_calib);
1504 if (ret) {
1505 hid_err(wdata->hdev, "cannot create sysfs attribute\n");
1506 goto err_free;
1507 }
1508
1509 input_set_drvdata(wdata->extension.input, wdata);
1510 wdata->extension.input->open = wiimod_bboard_open;
1511 wdata->extension.input->close = wiimod_bboard_close;
1512 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1513 wdata->extension.input->id.bustype = wdata->hdev->bus;
1514 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1515 wdata->extension.input->id.product = wdata->hdev->product;
1516 wdata->extension.input->id.version = wdata->hdev->version;
1517 wdata->extension.input->name = WIIMOTE_NAME " Balance Board";
1518
1519 set_bit(EV_KEY, wdata->extension.input->evbit);
1520 set_bit(BTN_A, wdata->extension.input->keybit);
1521
1522 set_bit(EV_ABS, wdata->extension.input->evbit);
1523 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
1524 set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
1525 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
1526 set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
1527 input_set_abs_params(wdata->extension.input,
1528 ABS_HAT0X, 0, 65535, 2, 4);
1529 input_set_abs_params(wdata->extension.input,
1530 ABS_HAT0Y, 0, 65535, 2, 4);
1531 input_set_abs_params(wdata->extension.input,
1532 ABS_HAT1X, 0, 65535, 2, 4);
1533 input_set_abs_params(wdata->extension.input,
1534 ABS_HAT1Y, 0, 65535, 2, 4);
1535
1536 ret = input_register_device(wdata->extension.input);
1537 if (ret)
1538 goto err_file;
1539
1540 return 0;
1541
1542 err_file:
1543 device_remove_file(&wdata->hdev->dev,
1544 &dev_attr_bboard_calib);
1545 err_free:
1546 input_free_device(wdata->extension.input);
1547 wdata->extension.input = NULL;
1548 return ret;
1549 }
1550
wiimod_bboard_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)1551 static void wiimod_bboard_remove(const struct wiimod_ops *ops,
1552 struct wiimote_data *wdata)
1553 {
1554 if (!wdata->extension.input)
1555 return;
1556
1557 input_unregister_device(wdata->extension.input);
1558 wdata->extension.input = NULL;
1559 device_remove_file(&wdata->hdev->dev,
1560 &dev_attr_bboard_calib);
1561 }
1562
1563 static const struct wiimod_ops wiimod_bboard = {
1564 .flags = WIIMOD_FLAG_EXT8,
1565 .arg = 0,
1566 .probe = wiimod_bboard_probe,
1567 .remove = wiimod_bboard_remove,
1568 .in_keys = wiimod_bboard_in_keys,
1569 .in_ext = wiimod_bboard_in_ext,
1570 };
1571
1572 /*
1573 * Pro Controller
1574 * Released with the Wii U was the Nintendo Wii U Pro Controller. It does not
1575 * work together with the classic Wii, but only with the new Wii U. However, it
1576 * uses the same protocol and provides a builtin "classic controller pro"
1577 * extension, few standard buttons, a rumble motor, 4 LEDs and a battery.
1578 * We provide all these via a standard extension device as the device doesn't
1579 * feature an extension port.
1580 */
1581
1582 enum wiimod_pro_keys {
1583 WIIMOD_PRO_KEY_A,
1584 WIIMOD_PRO_KEY_B,
1585 WIIMOD_PRO_KEY_X,
1586 WIIMOD_PRO_KEY_Y,
1587 WIIMOD_PRO_KEY_PLUS,
1588 WIIMOD_PRO_KEY_MINUS,
1589 WIIMOD_PRO_KEY_HOME,
1590 WIIMOD_PRO_KEY_LEFT,
1591 WIIMOD_PRO_KEY_RIGHT,
1592 WIIMOD_PRO_KEY_UP,
1593 WIIMOD_PRO_KEY_DOWN,
1594 WIIMOD_PRO_KEY_TL,
1595 WIIMOD_PRO_KEY_TR,
1596 WIIMOD_PRO_KEY_ZL,
1597 WIIMOD_PRO_KEY_ZR,
1598 WIIMOD_PRO_KEY_THUMBL,
1599 WIIMOD_PRO_KEY_THUMBR,
1600 WIIMOD_PRO_KEY_NUM,
1601 };
1602
1603 static const __u16 wiimod_pro_map[] = {
1604 BTN_EAST, /* WIIMOD_PRO_KEY_A */
1605 BTN_SOUTH, /* WIIMOD_PRO_KEY_B */
1606 BTN_NORTH, /* WIIMOD_PRO_KEY_X */
1607 BTN_WEST, /* WIIMOD_PRO_KEY_Y */
1608 BTN_START, /* WIIMOD_PRO_KEY_PLUS */
1609 BTN_SELECT, /* WIIMOD_PRO_KEY_MINUS */
1610 BTN_MODE, /* WIIMOD_PRO_KEY_HOME */
1611 BTN_DPAD_LEFT, /* WIIMOD_PRO_KEY_LEFT */
1612 BTN_DPAD_RIGHT, /* WIIMOD_PRO_KEY_RIGHT */
1613 BTN_DPAD_UP, /* WIIMOD_PRO_KEY_UP */
1614 BTN_DPAD_DOWN, /* WIIMOD_PRO_KEY_DOWN */
1615 BTN_TL, /* WIIMOD_PRO_KEY_TL */
1616 BTN_TR, /* WIIMOD_PRO_KEY_TR */
1617 BTN_TL2, /* WIIMOD_PRO_KEY_ZL */
1618 BTN_TR2, /* WIIMOD_PRO_KEY_ZR */
1619 BTN_THUMBL, /* WIIMOD_PRO_KEY_THUMBL */
1620 BTN_THUMBR, /* WIIMOD_PRO_KEY_THUMBR */
1621 };
1622
wiimod_pro_in_ext(struct wiimote_data * wdata,const __u8 * ext)1623 static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
1624 {
1625 __s16 rx, ry, lx, ly;
1626
1627 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
1628 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1629 * 1 | LX <7:0> |
1630 * -----+-----------------------+-----------------------+
1631 * 2 | 0 0 0 0 | LX <11:8> |
1632 * -----+-----------------------+-----------------------+
1633 * 3 | RX <7:0> |
1634 * -----+-----------------------+-----------------------+
1635 * 4 | 0 0 0 0 | RX <11:8> |
1636 * -----+-----------------------+-----------------------+
1637 * 5 | LY <7:0> |
1638 * -----+-----------------------+-----------------------+
1639 * 6 | 0 0 0 0 | LY <11:8> |
1640 * -----+-----------------------+-----------------------+
1641 * 7 | RY <7:0> |
1642 * -----+-----------------------+-----------------------+
1643 * 8 | 0 0 0 0 | RY <11:8> |
1644 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1645 * 9 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
1646 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1647 * 10 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
1648 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
1649 * 11 | 1 | BATTERY | USB |CHARG|LTHUM|RTHUM|
1650 * -----+-----+-----------------+-----------+-----+-----+
1651 * All buttons are low-active (0 if pressed)
1652 * RX and RY are right analog stick
1653 * LX and LY are left analog stick
1654 * BLT is left trigger, BRT is right trigger.
1655 * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
1656 * BZL is left Z button and BZR is right Z button
1657 * B-, BH, B+ are +, HOME and - buttons
1658 * BB, BY, BA, BX are A, B, X, Y buttons
1659 *
1660 * Bits marked as 0/1 are unknown and never changed during tests.
1661 *
1662 * Not entirely verified:
1663 * CHARG: 1 if uncharging, 0 if charging
1664 * USB: 1 if not connected, 0 if connected
1665 * BATTERY: battery capacity from 000 (empty) to 100 (full)
1666 */
1667
1668 lx = (ext[0] & 0xff) | ((ext[1] & 0x0f) << 8);
1669 rx = (ext[2] & 0xff) | ((ext[3] & 0x0f) << 8);
1670 ly = (ext[4] & 0xff) | ((ext[5] & 0x0f) << 8);
1671 ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
1672
1673 /* zero-point offsets */
1674 lx -= 0x800;
1675 ly = 0x800 - ly;
1676 rx -= 0x800;
1677 ry = 0x800 - ry;
1678
1679 /* Trivial automatic calibration. We don't know any calibration data
1680 * in the EEPROM so we must use the first report to calibrate the
1681 * null-position of the analog sticks. Users can retrigger calibration
1682 * via sysfs, or set it explicitly. If data is off more than abs(500),
1683 * we skip calibration as the sticks are likely to be moved already. */
1684 if (!(wdata->state.flags & WIIPROTO_FLAG_PRO_CALIB_DONE)) {
1685 wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
1686 if (abs(lx) < 500)
1687 wdata->state.calib_pro_sticks[0] = -lx;
1688 if (abs(ly) < 500)
1689 wdata->state.calib_pro_sticks[1] = -ly;
1690 if (abs(rx) < 500)
1691 wdata->state.calib_pro_sticks[2] = -rx;
1692 if (abs(ry) < 500)
1693 wdata->state.calib_pro_sticks[3] = -ry;
1694 }
1695
1696 /* apply calibration data */
1697 lx += wdata->state.calib_pro_sticks[0];
1698 ly += wdata->state.calib_pro_sticks[1];
1699 rx += wdata->state.calib_pro_sticks[2];
1700 ry += wdata->state.calib_pro_sticks[3];
1701
1702 input_report_abs(wdata->extension.input, ABS_X, lx);
1703 input_report_abs(wdata->extension.input, ABS_Y, ly);
1704 input_report_abs(wdata->extension.input, ABS_RX, rx);
1705 input_report_abs(wdata->extension.input, ABS_RY, ry);
1706
1707 input_report_key(wdata->extension.input,
1708 wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
1709 !(ext[8] & 0x80));
1710 input_report_key(wdata->extension.input,
1711 wiimod_pro_map[WIIMOD_PRO_KEY_DOWN],
1712 !(ext[8] & 0x40));
1713 input_report_key(wdata->extension.input,
1714 wiimod_pro_map[WIIMOD_PRO_KEY_TL],
1715 !(ext[8] & 0x20));
1716 input_report_key(wdata->extension.input,
1717 wiimod_pro_map[WIIMOD_PRO_KEY_MINUS],
1718 !(ext[8] & 0x10));
1719 input_report_key(wdata->extension.input,
1720 wiimod_pro_map[WIIMOD_PRO_KEY_HOME],
1721 !(ext[8] & 0x08));
1722 input_report_key(wdata->extension.input,
1723 wiimod_pro_map[WIIMOD_PRO_KEY_PLUS],
1724 !(ext[8] & 0x04));
1725 input_report_key(wdata->extension.input,
1726 wiimod_pro_map[WIIMOD_PRO_KEY_TR],
1727 !(ext[8] & 0x02));
1728
1729 input_report_key(wdata->extension.input,
1730 wiimod_pro_map[WIIMOD_PRO_KEY_ZL],
1731 !(ext[9] & 0x80));
1732 input_report_key(wdata->extension.input,
1733 wiimod_pro_map[WIIMOD_PRO_KEY_B],
1734 !(ext[9] & 0x40));
1735 input_report_key(wdata->extension.input,
1736 wiimod_pro_map[WIIMOD_PRO_KEY_Y],
1737 !(ext[9] & 0x20));
1738 input_report_key(wdata->extension.input,
1739 wiimod_pro_map[WIIMOD_PRO_KEY_A],
1740 !(ext[9] & 0x10));
1741 input_report_key(wdata->extension.input,
1742 wiimod_pro_map[WIIMOD_PRO_KEY_X],
1743 !(ext[9] & 0x08));
1744 input_report_key(wdata->extension.input,
1745 wiimod_pro_map[WIIMOD_PRO_KEY_ZR],
1746 !(ext[9] & 0x04));
1747 input_report_key(wdata->extension.input,
1748 wiimod_pro_map[WIIMOD_PRO_KEY_LEFT],
1749 !(ext[9] & 0x02));
1750 input_report_key(wdata->extension.input,
1751 wiimod_pro_map[WIIMOD_PRO_KEY_UP],
1752 !(ext[9] & 0x01));
1753
1754 input_report_key(wdata->extension.input,
1755 wiimod_pro_map[WIIMOD_PRO_KEY_THUMBL],
1756 !(ext[10] & 0x02));
1757 input_report_key(wdata->extension.input,
1758 wiimod_pro_map[WIIMOD_PRO_KEY_THUMBR],
1759 !(ext[10] & 0x01));
1760
1761 input_sync(wdata->extension.input);
1762 }
1763
wiimod_pro_open(struct input_dev * dev)1764 static int wiimod_pro_open(struct input_dev *dev)
1765 {
1766 struct wiimote_data *wdata = input_get_drvdata(dev);
1767 unsigned long flags;
1768
1769 spin_lock_irqsave(&wdata->state.lock, flags);
1770 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
1771 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1772 spin_unlock_irqrestore(&wdata->state.lock, flags);
1773
1774 return 0;
1775 }
1776
wiimod_pro_close(struct input_dev * dev)1777 static void wiimod_pro_close(struct input_dev *dev)
1778 {
1779 struct wiimote_data *wdata = input_get_drvdata(dev);
1780 unsigned long flags;
1781
1782 spin_lock_irqsave(&wdata->state.lock, flags);
1783 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
1784 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
1785 spin_unlock_irqrestore(&wdata->state.lock, flags);
1786 }
1787
wiimod_pro_play(struct input_dev * dev,void * data,struct ff_effect * eff)1788 static int wiimod_pro_play(struct input_dev *dev, void *data,
1789 struct ff_effect *eff)
1790 {
1791 struct wiimote_data *wdata = input_get_drvdata(dev);
1792 __u8 value;
1793
1794 /*
1795 * The wiimote supports only a single rumble motor so if any magnitude
1796 * is set to non-zero then we start the rumble motor. If both are set to
1797 * zero, we stop the rumble motor.
1798 */
1799
1800 if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
1801 value = 1;
1802 else
1803 value = 0;
1804
1805 /* Locking state.lock here might deadlock with input_event() calls.
1806 * schedule_work acts as barrier. Merging multiple changes is fine. */
1807 wdata->state.cache_rumble = value;
1808 schedule_work(&wdata->rumble_worker);
1809
1810 return 0;
1811 }
1812
wiimod_pro_calib_show(struct device * dev,struct device_attribute * attr,char * out)1813 static ssize_t wiimod_pro_calib_show(struct device *dev,
1814 struct device_attribute *attr,
1815 char *out)
1816 {
1817 struct wiimote_data *wdata = dev_to_wii(dev);
1818 int r;
1819
1820 r = 0;
1821 r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[0]);
1822 r += sprintf(&out[r], "%+06hd ", wdata->state.calib_pro_sticks[1]);
1823 r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[2]);
1824 r += sprintf(&out[r], "%+06hd\n", wdata->state.calib_pro_sticks[3]);
1825
1826 return r;
1827 }
1828
wiimod_pro_calib_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1829 static ssize_t wiimod_pro_calib_store(struct device *dev,
1830 struct device_attribute *attr,
1831 const char *buf, size_t count)
1832 {
1833 struct wiimote_data *wdata = dev_to_wii(dev);
1834 int r;
1835 s16 x1, y1, x2, y2;
1836
1837 if (!strncmp(buf, "scan\n", 5)) {
1838 spin_lock_irq(&wdata->state.lock);
1839 wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
1840 spin_unlock_irq(&wdata->state.lock);
1841 } else {
1842 r = sscanf(buf, "%hd:%hd %hd:%hd", &x1, &y1, &x2, &y2);
1843 if (r != 4)
1844 return -EINVAL;
1845
1846 spin_lock_irq(&wdata->state.lock);
1847 wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
1848 spin_unlock_irq(&wdata->state.lock);
1849
1850 wdata->state.calib_pro_sticks[0] = x1;
1851 wdata->state.calib_pro_sticks[1] = y1;
1852 wdata->state.calib_pro_sticks[2] = x2;
1853 wdata->state.calib_pro_sticks[3] = y2;
1854 }
1855
1856 return strnlen(buf, PAGE_SIZE);
1857 }
1858
1859 static DEVICE_ATTR(pro_calib, S_IRUGO|S_IWUSR|S_IWGRP, wiimod_pro_calib_show,
1860 wiimod_pro_calib_store);
1861
wiimod_pro_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)1862 static int wiimod_pro_probe(const struct wiimod_ops *ops,
1863 struct wiimote_data *wdata)
1864 {
1865 int ret, i;
1866 unsigned long flags;
1867
1868 INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
1869 wdata->state.calib_pro_sticks[0] = 0;
1870 wdata->state.calib_pro_sticks[1] = 0;
1871 wdata->state.calib_pro_sticks[2] = 0;
1872 wdata->state.calib_pro_sticks[3] = 0;
1873
1874 spin_lock_irqsave(&wdata->state.lock, flags);
1875 wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
1876 spin_unlock_irqrestore(&wdata->state.lock, flags);
1877
1878 wdata->extension.input = input_allocate_device();
1879 if (!wdata->extension.input)
1880 return -ENOMEM;
1881
1882 set_bit(FF_RUMBLE, wdata->extension.input->ffbit);
1883 input_set_drvdata(wdata->extension.input, wdata);
1884
1885 if (input_ff_create_memless(wdata->extension.input, NULL,
1886 wiimod_pro_play)) {
1887 ret = -ENOMEM;
1888 goto err_free;
1889 }
1890
1891 ret = device_create_file(&wdata->hdev->dev,
1892 &dev_attr_pro_calib);
1893 if (ret) {
1894 hid_err(wdata->hdev, "cannot create sysfs attribute\n");
1895 goto err_free;
1896 }
1897
1898 wdata->extension.input->open = wiimod_pro_open;
1899 wdata->extension.input->close = wiimod_pro_close;
1900 wdata->extension.input->dev.parent = &wdata->hdev->dev;
1901 wdata->extension.input->id.bustype = wdata->hdev->bus;
1902 wdata->extension.input->id.vendor = wdata->hdev->vendor;
1903 wdata->extension.input->id.product = wdata->hdev->product;
1904 wdata->extension.input->id.version = wdata->hdev->version;
1905 wdata->extension.input->name = WIIMOTE_NAME " Pro Controller";
1906
1907 set_bit(EV_KEY, wdata->extension.input->evbit);
1908 for (i = 0; i < WIIMOD_PRO_KEY_NUM; ++i)
1909 set_bit(wiimod_pro_map[i],
1910 wdata->extension.input->keybit);
1911
1912 set_bit(EV_ABS, wdata->extension.input->evbit);
1913 set_bit(ABS_X, wdata->extension.input->absbit);
1914 set_bit(ABS_Y, wdata->extension.input->absbit);
1915 set_bit(ABS_RX, wdata->extension.input->absbit);
1916 set_bit(ABS_RY, wdata->extension.input->absbit);
1917 input_set_abs_params(wdata->extension.input,
1918 ABS_X, -0x400, 0x400, 4, 100);
1919 input_set_abs_params(wdata->extension.input,
1920 ABS_Y, -0x400, 0x400, 4, 100);
1921 input_set_abs_params(wdata->extension.input,
1922 ABS_RX, -0x400, 0x400, 4, 100);
1923 input_set_abs_params(wdata->extension.input,
1924 ABS_RY, -0x400, 0x400, 4, 100);
1925
1926 ret = input_register_device(wdata->extension.input);
1927 if (ret)
1928 goto err_file;
1929
1930 return 0;
1931
1932 err_file:
1933 device_remove_file(&wdata->hdev->dev,
1934 &dev_attr_pro_calib);
1935 err_free:
1936 input_free_device(wdata->extension.input);
1937 wdata->extension.input = NULL;
1938 return ret;
1939 }
1940
wiimod_pro_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)1941 static void wiimod_pro_remove(const struct wiimod_ops *ops,
1942 struct wiimote_data *wdata)
1943 {
1944 unsigned long flags;
1945
1946 if (!wdata->extension.input)
1947 return;
1948
1949 input_unregister_device(wdata->extension.input);
1950 wdata->extension.input = NULL;
1951 cancel_work_sync(&wdata->rumble_worker);
1952 device_remove_file(&wdata->hdev->dev,
1953 &dev_attr_pro_calib);
1954
1955 spin_lock_irqsave(&wdata->state.lock, flags);
1956 wiiproto_req_rumble(wdata, 0);
1957 spin_unlock_irqrestore(&wdata->state.lock, flags);
1958 }
1959
1960 static const struct wiimod_ops wiimod_pro = {
1961 .flags = WIIMOD_FLAG_EXT16,
1962 .arg = 0,
1963 .probe = wiimod_pro_probe,
1964 .remove = wiimod_pro_remove,
1965 .in_ext = wiimod_pro_in_ext,
1966 };
1967
1968 /*
1969 * Drums
1970 * Guitar-Hero, Rock-Band and other games came bundled with drums which can
1971 * be plugged as extension to a Wiimote. Drum-reports are still not entirely
1972 * figured out, but the most important information is known.
1973 * We create a separate device for drums and report all information via this
1974 * input device.
1975 */
1976
wiimod_drums_report_pressure(struct wiimote_data * wdata,__u8 none,__u8 which,__u8 pressure,__u8 onoff,__u8 * store,__u16 code,__u8 which_code)1977 static inline void wiimod_drums_report_pressure(struct wiimote_data *wdata,
1978 __u8 none, __u8 which,
1979 __u8 pressure, __u8 onoff,
1980 __u8 *store, __u16 code,
1981 __u8 which_code)
1982 {
1983 static const __u8 default_pressure = 3;
1984
1985 if (!none && which == which_code) {
1986 *store = pressure;
1987 input_report_abs(wdata->extension.input, code, *store);
1988 } else if (onoff != !!*store) {
1989 *store = onoff ? default_pressure : 0;
1990 input_report_abs(wdata->extension.input, code, *store);
1991 }
1992 }
1993
wiimod_drums_in_ext(struct wiimote_data * wdata,const __u8 * ext)1994 static void wiimod_drums_in_ext(struct wiimote_data *wdata, const __u8 *ext)
1995 {
1996 __u8 pressure, which, none, hhp, sx, sy;
1997 __u8 o, r, y, g, b, bass, bm, bp;
1998
1999 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
2000 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2001 * 1 | 0 | 0 | SX <5:0> |
2002 * 2 | 0 | 0 | SY <5:0> |
2003 * -----+-----+-----+-----------------------------+-----+
2004 * 3 | HPP | NON | WHICH <5:1> | ? |
2005 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2006 * 4 | SOFT <7:5> | 0 | 1 | 1 | 0 | ? |
2007 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2008 * 5 | ? | 1 | 1 | B- | 1 | B+ | 1 | ? |
2009 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2010 * 6 | O | R | Y | G | B | BSS | 1 | 1 |
2011 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2012 * All buttons are 0 if pressed
2013 *
2014 * With Motion+ enabled, the following bits will get invalid:
2015 * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
2016 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2017 * 1 | 0 | 0 | SX <5:1> |XXXXX|
2018 * 2 | 0 | 0 | SY <5:1> |XXXXX|
2019 * -----+-----+-----+-----------------------------+-----+
2020 * 3 | HPP | NON | WHICH <5:1> | ? |
2021 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2022 * 4 | SOFT <7:5> | 0 | 1 | 1 | 0 | ? |
2023 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2024 * 5 | ? | 1 | 1 | B- | 1 | B+ | 1 |XXXXX|
2025 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2026 * 6 | O | R | Y | G | B | BSS |XXXXX|XXXXX|
2027 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2028 */
2029
2030 pressure = 7 - (ext[3] >> 5);
2031 which = (ext[2] >> 1) & 0x1f;
2032 none = !!(ext[2] & 0x40);
2033 hhp = !(ext[2] & 0x80);
2034 sx = ext[0] & 0x3f;
2035 sy = ext[1] & 0x3f;
2036 o = !(ext[5] & 0x80);
2037 r = !(ext[5] & 0x40);
2038 y = !(ext[5] & 0x20);
2039 g = !(ext[5] & 0x10);
2040 b = !(ext[5] & 0x08);
2041 bass = !(ext[5] & 0x04);
2042 bm = !(ext[4] & 0x10);
2043 bp = !(ext[4] & 0x04);
2044
2045 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
2046 sx &= 0x3e;
2047 sy &= 0x3e;
2048 }
2049
2050 wiimod_drums_report_pressure(wdata, none, which, pressure,
2051 o, &wdata->state.pressure_drums[0],
2052 ABS_HAT2Y, 0x0e);
2053 wiimod_drums_report_pressure(wdata, none, which, pressure,
2054 r, &wdata->state.pressure_drums[1],
2055 ABS_HAT0X, 0x19);
2056 wiimod_drums_report_pressure(wdata, none, which, pressure,
2057 y, &wdata->state.pressure_drums[2],
2058 ABS_HAT2X, 0x11);
2059 wiimod_drums_report_pressure(wdata, none, which, pressure,
2060 g, &wdata->state.pressure_drums[3],
2061 ABS_HAT1X, 0x12);
2062 wiimod_drums_report_pressure(wdata, none, which, pressure,
2063 b, &wdata->state.pressure_drums[4],
2064 ABS_HAT0Y, 0x0f);
2065
2066 /* Bass shares pressure with hi-hat (set via hhp) */
2067 wiimod_drums_report_pressure(wdata, none, hhp ? 0xff : which, pressure,
2068 bass, &wdata->state.pressure_drums[5],
2069 ABS_HAT3X, 0x1b);
2070 /* Hi-hat has no on/off values, just pressure. Force to off/0. */
2071 wiimod_drums_report_pressure(wdata, none, hhp ? which : 0xff, pressure,
2072 0, &wdata->state.pressure_drums[6],
2073 ABS_HAT3Y, 0x0e);
2074
2075 input_report_abs(wdata->extension.input, ABS_X, sx - 0x20);
2076 input_report_abs(wdata->extension.input, ABS_Y, sy - 0x20);
2077
2078 input_report_key(wdata->extension.input, BTN_START, bp);
2079 input_report_key(wdata->extension.input, BTN_SELECT, bm);
2080
2081 input_sync(wdata->extension.input);
2082 }
2083
wiimod_drums_open(struct input_dev * dev)2084 static int wiimod_drums_open(struct input_dev *dev)
2085 {
2086 struct wiimote_data *wdata = input_get_drvdata(dev);
2087 unsigned long flags;
2088
2089 spin_lock_irqsave(&wdata->state.lock, flags);
2090 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
2091 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2092 spin_unlock_irqrestore(&wdata->state.lock, flags);
2093
2094 return 0;
2095 }
2096
wiimod_drums_close(struct input_dev * dev)2097 static void wiimod_drums_close(struct input_dev *dev)
2098 {
2099 struct wiimote_data *wdata = input_get_drvdata(dev);
2100 unsigned long flags;
2101
2102 spin_lock_irqsave(&wdata->state.lock, flags);
2103 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
2104 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2105 spin_unlock_irqrestore(&wdata->state.lock, flags);
2106 }
2107
wiimod_drums_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)2108 static int wiimod_drums_probe(const struct wiimod_ops *ops,
2109 struct wiimote_data *wdata)
2110 {
2111 int ret;
2112
2113 wdata->extension.input = input_allocate_device();
2114 if (!wdata->extension.input)
2115 return -ENOMEM;
2116
2117 input_set_drvdata(wdata->extension.input, wdata);
2118 wdata->extension.input->open = wiimod_drums_open;
2119 wdata->extension.input->close = wiimod_drums_close;
2120 wdata->extension.input->dev.parent = &wdata->hdev->dev;
2121 wdata->extension.input->id.bustype = wdata->hdev->bus;
2122 wdata->extension.input->id.vendor = wdata->hdev->vendor;
2123 wdata->extension.input->id.product = wdata->hdev->product;
2124 wdata->extension.input->id.version = wdata->hdev->version;
2125 wdata->extension.input->name = WIIMOTE_NAME " Drums";
2126
2127 set_bit(EV_KEY, wdata->extension.input->evbit);
2128 set_bit(BTN_START, wdata->extension.input->keybit);
2129 set_bit(BTN_SELECT, wdata->extension.input->keybit);
2130
2131 set_bit(EV_ABS, wdata->extension.input->evbit);
2132 set_bit(ABS_X, wdata->extension.input->absbit);
2133 set_bit(ABS_Y, wdata->extension.input->absbit);
2134 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
2135 set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
2136 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
2137 set_bit(ABS_HAT2X, wdata->extension.input->absbit);
2138 set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
2139 set_bit(ABS_HAT3X, wdata->extension.input->absbit);
2140 set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
2141 input_set_abs_params(wdata->extension.input,
2142 ABS_X, -32, 31, 1, 1);
2143 input_set_abs_params(wdata->extension.input,
2144 ABS_Y, -32, 31, 1, 1);
2145 input_set_abs_params(wdata->extension.input,
2146 ABS_HAT0X, 0, 7, 0, 0);
2147 input_set_abs_params(wdata->extension.input,
2148 ABS_HAT0Y, 0, 7, 0, 0);
2149 input_set_abs_params(wdata->extension.input,
2150 ABS_HAT1X, 0, 7, 0, 0);
2151 input_set_abs_params(wdata->extension.input,
2152 ABS_HAT2X, 0, 7, 0, 0);
2153 input_set_abs_params(wdata->extension.input,
2154 ABS_HAT2Y, 0, 7, 0, 0);
2155 input_set_abs_params(wdata->extension.input,
2156 ABS_HAT3X, 0, 7, 0, 0);
2157 input_set_abs_params(wdata->extension.input,
2158 ABS_HAT3Y, 0, 7, 0, 0);
2159
2160 ret = input_register_device(wdata->extension.input);
2161 if (ret)
2162 goto err_free;
2163
2164 return 0;
2165
2166 err_free:
2167 input_free_device(wdata->extension.input);
2168 wdata->extension.input = NULL;
2169 return ret;
2170 }
2171
wiimod_drums_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)2172 static void wiimod_drums_remove(const struct wiimod_ops *ops,
2173 struct wiimote_data *wdata)
2174 {
2175 if (!wdata->extension.input)
2176 return;
2177
2178 input_unregister_device(wdata->extension.input);
2179 wdata->extension.input = NULL;
2180 }
2181
2182 static const struct wiimod_ops wiimod_drums = {
2183 .flags = 0,
2184 .arg = 0,
2185 .probe = wiimod_drums_probe,
2186 .remove = wiimod_drums_remove,
2187 .in_ext = wiimod_drums_in_ext,
2188 };
2189
2190 /*
2191 * Guitar
2192 * Guitar-Hero, Rock-Band and other games came bundled with guitars which can
2193 * be plugged as extension to a Wiimote.
2194 * We create a separate device for guitars and report all information via this
2195 * input device.
2196 */
2197
2198 enum wiimod_guitar_keys {
2199 WIIMOD_GUITAR_KEY_G,
2200 WIIMOD_GUITAR_KEY_R,
2201 WIIMOD_GUITAR_KEY_Y,
2202 WIIMOD_GUITAR_KEY_B,
2203 WIIMOD_GUITAR_KEY_O,
2204 WIIMOD_GUITAR_KEY_UP,
2205 WIIMOD_GUITAR_KEY_DOWN,
2206 WIIMOD_GUITAR_KEY_PLUS,
2207 WIIMOD_GUITAR_KEY_MINUS,
2208 WIIMOD_GUITAR_KEY_NUM,
2209 };
2210
2211 static const __u16 wiimod_guitar_map[] = {
2212 BTN_1, /* WIIMOD_GUITAR_KEY_G */
2213 BTN_2, /* WIIMOD_GUITAR_KEY_R */
2214 BTN_3, /* WIIMOD_GUITAR_KEY_Y */
2215 BTN_4, /* WIIMOD_GUITAR_KEY_B */
2216 BTN_5, /* WIIMOD_GUITAR_KEY_O */
2217 BTN_DPAD_UP, /* WIIMOD_GUITAR_KEY_UP */
2218 BTN_DPAD_DOWN, /* WIIMOD_GUITAR_KEY_DOWN */
2219 BTN_START, /* WIIMOD_GUITAR_KEY_PLUS */
2220 BTN_SELECT, /* WIIMOD_GUITAR_KEY_MINUS */
2221 };
2222
wiimod_guitar_in_ext(struct wiimote_data * wdata,const __u8 * ext)2223 static void wiimod_guitar_in_ext(struct wiimote_data *wdata, const __u8 *ext)
2224 {
2225 __u8 sx, sy, tb, wb, bd, bm, bp, bo, br, bb, bg, by, bu;
2226
2227 /* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
2228 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2229 * 1 | 0 | 0 | SX <5:0> |
2230 * 2 | 0 | 0 | SY <5:0> |
2231 * -----+-----+-----+-----+-----------------------------+
2232 * 3 | 0 | 0 | 0 | TB <4:0> |
2233 * -----+-----+-----+-----+-----------------------------+
2234 * 4 | 0 | 0 | 0 | WB <4:0> |
2235 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2236 * 5 | 1 | BD | 1 | B- | 1 | B+ | 1 | 1 |
2237 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2238 * 6 | BO | BR | BB | BG | BY | 1 | 1 | BU |
2239 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2240 * All buttons are 0 if pressed
2241 *
2242 * With Motion+ enabled, it will look like this:
2243 * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
2244 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2245 * 1 | 0 | 0 | SX <5:1> | BU |
2246 * 2 | 0 | 0 | SY <5:1> | 1 |
2247 * -----+-----+-----+-----+-----------------------+-----+
2248 * 3 | 0 | 0 | 0 | TB <4:0> |
2249 * -----+-----+-----+-----+-----------------------------+
2250 * 4 | 0 | 0 | 0 | WB <4:0> |
2251 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2252 * 5 | 1 | BD | 1 | B- | 1 | B+ | 1 |XXXXX|
2253 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2254 * 6 | BO | BR | BB | BG | BY | 1 |XXXXX|XXXXX|
2255 * -----+-----+-----+-----+-----+-----+-----+-----+-----+
2256 */
2257
2258 sx = ext[0] & 0x3f;
2259 sy = ext[1] & 0x3f;
2260 tb = ext[2] & 0x1f;
2261 wb = ext[3] & 0x1f;
2262 bd = !(ext[4] & 0x40);
2263 bm = !(ext[4] & 0x10);
2264 bp = !(ext[4] & 0x04);
2265 bo = !(ext[5] & 0x80);
2266 br = !(ext[5] & 0x40);
2267 bb = !(ext[5] & 0x20);
2268 bg = !(ext[5] & 0x10);
2269 by = !(ext[5] & 0x08);
2270 bu = !(ext[5] & 0x01);
2271
2272 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
2273 bu = !(ext[0] & 0x01);
2274 sx &= 0x3e;
2275 sy &= 0x3e;
2276 }
2277
2278 input_report_abs(wdata->extension.input, ABS_X, sx - 0x20);
2279 input_report_abs(wdata->extension.input, ABS_Y, sy - 0x20);
2280 input_report_abs(wdata->extension.input, ABS_HAT0X, tb);
2281 input_report_abs(wdata->extension.input, ABS_HAT1X, wb - 0x10);
2282
2283 input_report_key(wdata->extension.input,
2284 wiimod_guitar_map[WIIMOD_GUITAR_KEY_G],
2285 bg);
2286 input_report_key(wdata->extension.input,
2287 wiimod_guitar_map[WIIMOD_GUITAR_KEY_R],
2288 br);
2289 input_report_key(wdata->extension.input,
2290 wiimod_guitar_map[WIIMOD_GUITAR_KEY_Y],
2291 by);
2292 input_report_key(wdata->extension.input,
2293 wiimod_guitar_map[WIIMOD_GUITAR_KEY_B],
2294 bb);
2295 input_report_key(wdata->extension.input,
2296 wiimod_guitar_map[WIIMOD_GUITAR_KEY_O],
2297 bo);
2298 input_report_key(wdata->extension.input,
2299 wiimod_guitar_map[WIIMOD_GUITAR_KEY_UP],
2300 bu);
2301 input_report_key(wdata->extension.input,
2302 wiimod_guitar_map[WIIMOD_GUITAR_KEY_DOWN],
2303 bd);
2304 input_report_key(wdata->extension.input,
2305 wiimod_guitar_map[WIIMOD_GUITAR_KEY_PLUS],
2306 bp);
2307 input_report_key(wdata->extension.input,
2308 wiimod_guitar_map[WIIMOD_GUITAR_KEY_MINUS],
2309 bm);
2310
2311 input_sync(wdata->extension.input);
2312 }
2313
wiimod_guitar_open(struct input_dev * dev)2314 static int wiimod_guitar_open(struct input_dev *dev)
2315 {
2316 struct wiimote_data *wdata = input_get_drvdata(dev);
2317 unsigned long flags;
2318
2319 spin_lock_irqsave(&wdata->state.lock, flags);
2320 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
2321 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2322 spin_unlock_irqrestore(&wdata->state.lock, flags);
2323
2324 return 0;
2325 }
2326
wiimod_guitar_close(struct input_dev * dev)2327 static void wiimod_guitar_close(struct input_dev *dev)
2328 {
2329 struct wiimote_data *wdata = input_get_drvdata(dev);
2330 unsigned long flags;
2331
2332 spin_lock_irqsave(&wdata->state.lock, flags);
2333 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
2334 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2335 spin_unlock_irqrestore(&wdata->state.lock, flags);
2336 }
2337
wiimod_guitar_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)2338 static int wiimod_guitar_probe(const struct wiimod_ops *ops,
2339 struct wiimote_data *wdata)
2340 {
2341 int ret, i;
2342
2343 wdata->extension.input = input_allocate_device();
2344 if (!wdata->extension.input)
2345 return -ENOMEM;
2346
2347 input_set_drvdata(wdata->extension.input, wdata);
2348 wdata->extension.input->open = wiimod_guitar_open;
2349 wdata->extension.input->close = wiimod_guitar_close;
2350 wdata->extension.input->dev.parent = &wdata->hdev->dev;
2351 wdata->extension.input->id.bustype = wdata->hdev->bus;
2352 wdata->extension.input->id.vendor = wdata->hdev->vendor;
2353 wdata->extension.input->id.product = wdata->hdev->product;
2354 wdata->extension.input->id.version = wdata->hdev->version;
2355 wdata->extension.input->name = WIIMOTE_NAME " Guitar";
2356
2357 set_bit(EV_KEY, wdata->extension.input->evbit);
2358 for (i = 0; i < WIIMOD_GUITAR_KEY_NUM; ++i)
2359 set_bit(wiimod_guitar_map[i],
2360 wdata->extension.input->keybit);
2361
2362 set_bit(EV_ABS, wdata->extension.input->evbit);
2363 set_bit(ABS_X, wdata->extension.input->absbit);
2364 set_bit(ABS_Y, wdata->extension.input->absbit);
2365 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
2366 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
2367 input_set_abs_params(wdata->extension.input,
2368 ABS_X, -32, 31, 1, 1);
2369 input_set_abs_params(wdata->extension.input,
2370 ABS_Y, -32, 31, 1, 1);
2371 input_set_abs_params(wdata->extension.input,
2372 ABS_HAT0X, 0, 0x1f, 1, 1);
2373 input_set_abs_params(wdata->extension.input,
2374 ABS_HAT1X, 0, 0x0f, 1, 1);
2375
2376 ret = input_register_device(wdata->extension.input);
2377 if (ret)
2378 goto err_free;
2379
2380 return 0;
2381
2382 err_free:
2383 input_free_device(wdata->extension.input);
2384 wdata->extension.input = NULL;
2385 return ret;
2386 }
2387
wiimod_guitar_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)2388 static void wiimod_guitar_remove(const struct wiimod_ops *ops,
2389 struct wiimote_data *wdata)
2390 {
2391 if (!wdata->extension.input)
2392 return;
2393
2394 input_unregister_device(wdata->extension.input);
2395 wdata->extension.input = NULL;
2396 }
2397
2398 static const struct wiimod_ops wiimod_guitar = {
2399 .flags = 0,
2400 .arg = 0,
2401 .probe = wiimod_guitar_probe,
2402 .remove = wiimod_guitar_remove,
2403 .in_ext = wiimod_guitar_in_ext,
2404 };
2405
2406 /*
2407 * Turntable
2408 * DJ Hero came with a Turntable Controller that was plugged in
2409 * as an extension.
2410 * We create a separate device for turntables and report all information via this
2411 * input device.
2412 */
2413
2414 enum wiimod_turntable_keys {
2415 WIIMOD_TURNTABLE_KEY_G_RIGHT,
2416 WIIMOD_TURNTABLE_KEY_R_RIGHT,
2417 WIIMOD_TURNTABLE_KEY_B_RIGHT,
2418 WIIMOD_TURNTABLE_KEY_G_LEFT,
2419 WIIMOD_TURNTABLE_KEY_R_LEFT,
2420 WIIMOD_TURNTABLE_KEY_B_LEFT,
2421 WIIMOD_TURNTABLE_KEY_EUPHORIA,
2422 WIIMOD_TURNTABLE_KEY_PLUS,
2423 WIIMOD_TURNTABLE_KEY_MINUS,
2424 WIIMOD_TURNTABLE_KEY_NUM
2425 };
2426
2427 static const __u16 wiimod_turntable_map[] = {
2428 BTN_1, /* WIIMOD_TURNTABLE_KEY_G_RIGHT */
2429 BTN_2, /* WIIMOD_TURNTABLE_KEY_R_RIGHT */
2430 BTN_3, /* WIIMOD_TURNTABLE_KEY_B_RIGHT */
2431 BTN_4, /* WIIMOD_TURNTABLE_KEY_G_LEFT */
2432 BTN_5, /* WIIMOD_TURNTABLE_KEY_R_LEFT */
2433 BTN_6, /* WIIMOD_TURNTABLE_KEY_B_LEFT */
2434 BTN_7, /* WIIMOD_TURNTABLE_KEY_EUPHORIA */
2435 BTN_START, /* WIIMOD_TURNTABLE_KEY_PLUS */
2436 BTN_SELECT, /* WIIMOD_TURNTABLE_KEY_MINUS */
2437 };
2438
wiimod_turntable_in_ext(struct wiimote_data * wdata,const __u8 * ext)2439 static void wiimod_turntable_in_ext(struct wiimote_data *wdata, const __u8 *ext)
2440 {
2441 __u8 be, cs, sx, sy, ed, rtt, rbg, rbr, rbb, ltt, lbg, lbr, lbb, bp, bm;
2442 /*
2443 * Byte | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
2444 *------+------+-----+-----+-----+-----+------+------+--------+
2445 * 0 | RTT<4:3> | SX <5:0> |
2446 * 1 | RTT<2:1> | SY <5:0> |
2447 *------+------+-----+-----+-----+-----+------+------+--------+
2448 * 2 |RTT<0>| ED<4:3> | CS<3:0> | RTT<5> |
2449 *------+------+-----+-----+-----+-----+------+------+--------+
2450 * 3 | ED<2:0> | LTT<4:0> |
2451 *------+------+-----+-----+-----+-----+------+------+--------+
2452 * 4 | 0 | 0 | LBR | B- | 0 | B+ | RBR | LTT<5> |
2453 *------+------+-----+-----+-----+-----+------+------+--------+
2454 * 5 | LBB | 0 | RBG | BE | LBG | RBB | 0 | 0 |
2455 *------+------+-----+-----+-----+-----+------+------+--------+
2456 * All pressed buttons are 0
2457 *
2458 * With Motion+ enabled, it will look like this:
2459 * Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
2460 *------+------+-----+-----+-----+-----+------+------+--------+
2461 * 1 | RTT<4:3> | SX <5:1> | 0 |
2462 * 2 | RTT<2:1> | SY <5:1> | 0 |
2463 *------+------+-----+-----+-----+-----+------+------+--------+
2464 * 3 |RTT<0>| ED<4:3> | CS<3:0> | RTT<5> |
2465 *------+------+-----+-----+-----+-----+------+------+--------+
2466 * 4 | ED<2:0> | LTT<4:0> |
2467 *------+------+-----+-----+-----+-----+------+------+--------+
2468 * 5 | 0 | 0 | LBR | B- | 0 | B+ | RBR | XXXX |
2469 *------+------+-----+-----+-----+-----+------+------+--------+
2470 * 6 | LBB | 0 | RBG | BE | LBG | RBB | XXXX | XXXX |
2471 *------+------+-----+-----+-----+-----+------+------+--------+
2472 */
2473
2474 be = !(ext[5] & 0x10);
2475 cs = ((ext[2] & 0x1e));
2476 sx = ext[0] & 0x3f;
2477 sy = ext[1] & 0x3f;
2478 ed = (ext[3] & 0xe0) >> 5;
2479 rtt = ((ext[2] & 0x01) << 5 | (ext[0] & 0xc0) >> 3 | (ext[1] & 0xc0) >> 5 | ( ext[2] & 0x80 ) >> 7);
2480 ltt = ((ext[4] & 0x01) << 5 | (ext[3] & 0x1f));
2481 rbg = !(ext[5] & 0x20);
2482 rbr = !(ext[4] & 0x02);
2483 rbb = !(ext[5] & 0x04);
2484 lbg = !(ext[5] & 0x08);
2485 lbb = !(ext[5] & 0x80);
2486 lbr = !(ext[4] & 0x20);
2487 bm = !(ext[4] & 0x10);
2488 bp = !(ext[4] & 0x04);
2489
2490 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
2491 ltt = (ext[4] & 0x01) << 5;
2492 sx &= 0x3e;
2493 sy &= 0x3e;
2494 }
2495
2496 input_report_abs(wdata->extension.input, ABS_X, sx);
2497 input_report_abs(wdata->extension.input, ABS_Y, sy);
2498 input_report_abs(wdata->extension.input, ABS_HAT0X, rtt);
2499 input_report_abs(wdata->extension.input, ABS_HAT1X, ltt);
2500 input_report_abs(wdata->extension.input, ABS_HAT2X, cs);
2501 input_report_abs(wdata->extension.input, ABS_HAT3X, ed);
2502 input_report_key(wdata->extension.input,
2503 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_G_RIGHT],
2504 rbg);
2505 input_report_key(wdata->extension.input,
2506 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_R_RIGHT],
2507 rbr);
2508 input_report_key(wdata->extension.input,
2509 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_B_RIGHT],
2510 rbb);
2511 input_report_key(wdata->extension.input,
2512 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_G_LEFT],
2513 lbg);
2514 input_report_key(wdata->extension.input,
2515 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_R_LEFT],
2516 lbr);
2517 input_report_key(wdata->extension.input,
2518 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_B_LEFT],
2519 lbb);
2520 input_report_key(wdata->extension.input,
2521 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_EUPHORIA],
2522 be);
2523 input_report_key(wdata->extension.input,
2524 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_PLUS],
2525 bp);
2526 input_report_key(wdata->extension.input,
2527 wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_MINUS],
2528 bm);
2529
2530 input_sync(wdata->extension.input);
2531 }
2532
wiimod_turntable_open(struct input_dev * dev)2533 static int wiimod_turntable_open(struct input_dev *dev)
2534 {
2535 struct wiimote_data *wdata = input_get_drvdata(dev);
2536 unsigned long flags;
2537
2538 spin_lock_irqsave(&wdata->state.lock, flags);
2539 wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
2540 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2541 spin_unlock_irqrestore(&wdata->state.lock, flags);
2542
2543 return 0;
2544 }
2545
wiimod_turntable_close(struct input_dev * dev)2546 static void wiimod_turntable_close(struct input_dev *dev)
2547 {
2548 struct wiimote_data *wdata = input_get_drvdata(dev);
2549 unsigned long flags;
2550
2551 spin_lock_irqsave(&wdata->state.lock, flags);
2552 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
2553 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2554 spin_unlock_irqrestore(&wdata->state.lock, flags);
2555 }
2556
wiimod_turntable_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)2557 static int wiimod_turntable_probe(const struct wiimod_ops *ops,
2558 struct wiimote_data *wdata)
2559 {
2560 int ret, i;
2561
2562 wdata->extension.input = input_allocate_device();
2563 if (!wdata->extension.input)
2564 return -ENOMEM;
2565
2566 input_set_drvdata(wdata->extension.input, wdata);
2567 wdata->extension.input->open = wiimod_turntable_open;
2568 wdata->extension.input->close = wiimod_turntable_close;
2569 wdata->extension.input->dev.parent = &wdata->hdev->dev;
2570 wdata->extension.input->id.bustype = wdata->hdev->bus;
2571 wdata->extension.input->id.vendor = wdata->hdev->vendor;
2572 wdata->extension.input->id.product = wdata->hdev->product;
2573 wdata->extension.input->id.version = wdata->hdev->version;
2574 wdata->extension.input->name = WIIMOTE_NAME " Turntable";
2575
2576 set_bit(EV_KEY, wdata->extension.input->evbit);
2577 for (i = 0; i < WIIMOD_TURNTABLE_KEY_NUM; ++i)
2578 set_bit(wiimod_turntable_map[i],
2579 wdata->extension.input->keybit);
2580
2581 set_bit(EV_ABS, wdata->extension.input->evbit);
2582 set_bit(ABS_X, wdata->extension.input->absbit);
2583 set_bit(ABS_Y, wdata->extension.input->absbit);
2584 set_bit(ABS_HAT0X, wdata->extension.input->absbit);
2585 set_bit(ABS_HAT1X, wdata->extension.input->absbit);
2586 set_bit(ABS_HAT2X, wdata->extension.input->absbit);
2587 set_bit(ABS_HAT3X, wdata->extension.input->absbit);
2588 input_set_abs_params(wdata->extension.input,
2589 ABS_X, 0, 63, 1, 0);
2590 input_set_abs_params(wdata->extension.input,
2591 ABS_Y, 63, 0, 1, 0);
2592 input_set_abs_params(wdata->extension.input,
2593 ABS_HAT0X, -8, 8, 0, 0);
2594 input_set_abs_params(wdata->extension.input,
2595 ABS_HAT1X, -8, 8, 0, 0);
2596 input_set_abs_params(wdata->extension.input,
2597 ABS_HAT2X, 0, 31, 1, 1);
2598 input_set_abs_params(wdata->extension.input,
2599 ABS_HAT3X, 0, 7, 0, 0);
2600 ret = input_register_device(wdata->extension.input);
2601 if (ret)
2602 goto err_free;
2603
2604 return 0;
2605
2606 err_free:
2607 input_free_device(wdata->extension.input);
2608 wdata->extension.input = NULL;
2609 return ret;
2610 }
2611
wiimod_turntable_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)2612 static void wiimod_turntable_remove(const struct wiimod_ops *ops,
2613 struct wiimote_data *wdata)
2614 {
2615 if (!wdata->extension.input)
2616 return;
2617
2618 input_unregister_device(wdata->extension.input);
2619 wdata->extension.input = NULL;
2620 }
2621
2622 static const struct wiimod_ops wiimod_turntable = {
2623 .flags = 0,
2624 .arg = 0,
2625 .probe = wiimod_turntable_probe,
2626 .remove = wiimod_turntable_remove,
2627 .in_ext = wiimod_turntable_in_ext,
2628 };
2629
2630 /*
2631 * Builtin Motion Plus
2632 * This module simply sets the WIIPROTO_FLAG_BUILTIN_MP protocol flag which
2633 * disables polling for Motion-Plus. This should be set only for devices which
2634 * don't allow MP hotplugging.
2635 */
2636
wiimod_builtin_mp_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)2637 static int wiimod_builtin_mp_probe(const struct wiimod_ops *ops,
2638 struct wiimote_data *wdata)
2639 {
2640 unsigned long flags;
2641
2642 spin_lock_irqsave(&wdata->state.lock, flags);
2643 wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
2644 spin_unlock_irqrestore(&wdata->state.lock, flags);
2645
2646 return 0;
2647 }
2648
wiimod_builtin_mp_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)2649 static void wiimod_builtin_mp_remove(const struct wiimod_ops *ops,
2650 struct wiimote_data *wdata)
2651 {
2652 unsigned long flags;
2653
2654 spin_lock_irqsave(&wdata->state.lock, flags);
2655 wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
2656 spin_unlock_irqrestore(&wdata->state.lock, flags);
2657 }
2658
2659 static const struct wiimod_ops wiimod_builtin_mp = {
2660 .flags = 0,
2661 .arg = 0,
2662 .probe = wiimod_builtin_mp_probe,
2663 .remove = wiimod_builtin_mp_remove,
2664 };
2665
2666 /*
2667 * No Motion Plus
2668 * This module simply sets the WIIPROTO_FLAG_NO_MP protocol flag which
2669 * disables motion-plus. This is needed for devices that advertise this but we
2670 * don't know how to use it (or whether it is actually present).
2671 */
2672
wiimod_no_mp_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)2673 static int wiimod_no_mp_probe(const struct wiimod_ops *ops,
2674 struct wiimote_data *wdata)
2675 {
2676 unsigned long flags;
2677
2678 spin_lock_irqsave(&wdata->state.lock, flags);
2679 wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
2680 spin_unlock_irqrestore(&wdata->state.lock, flags);
2681
2682 return 0;
2683 }
2684
wiimod_no_mp_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)2685 static void wiimod_no_mp_remove(const struct wiimod_ops *ops,
2686 struct wiimote_data *wdata)
2687 {
2688 unsigned long flags;
2689
2690 spin_lock_irqsave(&wdata->state.lock, flags);
2691 wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
2692 spin_unlock_irqrestore(&wdata->state.lock, flags);
2693 }
2694
2695 static const struct wiimod_ops wiimod_no_mp = {
2696 .flags = 0,
2697 .arg = 0,
2698 .probe = wiimod_no_mp_probe,
2699 .remove = wiimod_no_mp_remove,
2700 };
2701
2702 /*
2703 * Motion Plus
2704 * The Motion Plus extension provides rotation sensors (gyro) as a small
2705 * extension device for Wii Remotes. Many devices have them built-in so
2706 * you cannot see them from the outside.
2707 * Motion Plus extensions are special because they are on a separate extension
2708 * port and allow other extensions to be used simultaneously. This is all
2709 * handled by the Wiimote Core so we don't have to deal with it.
2710 */
2711
wiimod_mp_in_mp(struct wiimote_data * wdata,const __u8 * ext)2712 static void wiimod_mp_in_mp(struct wiimote_data *wdata, const __u8 *ext)
2713 {
2714 __s32 x, y, z;
2715
2716 /* | 8 7 6 5 4 3 | 2 | 1 |
2717 * -----+------------------------------+-----+-----+
2718 * 1 | Yaw Speed <7:0> |
2719 * 2 | Roll Speed <7:0> |
2720 * 3 | Pitch Speed <7:0> |
2721 * -----+------------------------------+-----+-----+
2722 * 4 | Yaw Speed <13:8> | Yaw |Pitch|
2723 * -----+------------------------------+-----+-----+
2724 * 5 | Roll Speed <13:8> |Roll | Ext |
2725 * -----+------------------------------+-----+-----+
2726 * 6 | Pitch Speed <13:8> | 1 | 0 |
2727 * -----+------------------------------+-----+-----+
2728 * The single bits Yaw, Roll, Pitch in the lower right corner specify
2729 * whether the wiimote is rotating fast (0) or slow (1). Speed for slow
2730 * roation is 8192/440 units / deg/s and for fast rotation 8192/2000
2731 * units / deg/s. To get a linear scale for fast rotation we multiply
2732 * by 2000/440 = ~4.5454 and scale both fast and slow by 9 to match the
2733 * previous scale reported by this driver.
2734 * This leaves a linear scale with 8192*9/440 (~167.564) units / deg/s.
2735 * If the wiimote is not rotating the sensor reports 2^13 = 8192.
2736 * Ext specifies whether an extension is connected to the motionp.
2737 * which is parsed by wiimote-core.
2738 */
2739
2740 x = ext[0];
2741 y = ext[1];
2742 z = ext[2];
2743
2744 x |= (((__u16)ext[3]) << 6) & 0xff00;
2745 y |= (((__u16)ext[4]) << 6) & 0xff00;
2746 z |= (((__u16)ext[5]) << 6) & 0xff00;
2747
2748 x -= 8192;
2749 y -= 8192;
2750 z -= 8192;
2751
2752 if (!(ext[3] & 0x02))
2753 x = (x * 2000 * 9) / 440;
2754 else
2755 x *= 9;
2756 if (!(ext[4] & 0x02))
2757 y = (y * 2000 * 9) / 440;
2758 else
2759 y *= 9;
2760 if (!(ext[3] & 0x01))
2761 z = (z * 2000 * 9) / 440;
2762 else
2763 z *= 9;
2764
2765 input_report_abs(wdata->mp, ABS_RX, x);
2766 input_report_abs(wdata->mp, ABS_RY, y);
2767 input_report_abs(wdata->mp, ABS_RZ, z);
2768 input_sync(wdata->mp);
2769 }
2770
wiimod_mp_open(struct input_dev * dev)2771 static int wiimod_mp_open(struct input_dev *dev)
2772 {
2773 struct wiimote_data *wdata = input_get_drvdata(dev);
2774 unsigned long flags;
2775
2776 spin_lock_irqsave(&wdata->state.lock, flags);
2777 wdata->state.flags |= WIIPROTO_FLAG_MP_USED;
2778 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2779 __wiimote_schedule(wdata);
2780 spin_unlock_irqrestore(&wdata->state.lock, flags);
2781
2782 return 0;
2783 }
2784
wiimod_mp_close(struct input_dev * dev)2785 static void wiimod_mp_close(struct input_dev *dev)
2786 {
2787 struct wiimote_data *wdata = input_get_drvdata(dev);
2788 unsigned long flags;
2789
2790 spin_lock_irqsave(&wdata->state.lock, flags);
2791 wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
2792 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2793 __wiimote_schedule(wdata);
2794 spin_unlock_irqrestore(&wdata->state.lock, flags);
2795 }
2796
wiimod_mp_probe(const struct wiimod_ops * ops,struct wiimote_data * wdata)2797 static int wiimod_mp_probe(const struct wiimod_ops *ops,
2798 struct wiimote_data *wdata)
2799 {
2800 int ret;
2801
2802 wdata->mp = input_allocate_device();
2803 if (!wdata->mp)
2804 return -ENOMEM;
2805
2806 input_set_drvdata(wdata->mp, wdata);
2807 wdata->mp->open = wiimod_mp_open;
2808 wdata->mp->close = wiimod_mp_close;
2809 wdata->mp->dev.parent = &wdata->hdev->dev;
2810 wdata->mp->id.bustype = wdata->hdev->bus;
2811 wdata->mp->id.vendor = wdata->hdev->vendor;
2812 wdata->mp->id.product = wdata->hdev->product;
2813 wdata->mp->id.version = wdata->hdev->version;
2814 wdata->mp->name = WIIMOTE_NAME " Motion Plus";
2815
2816 set_bit(EV_ABS, wdata->mp->evbit);
2817 set_bit(ABS_RX, wdata->mp->absbit);
2818 set_bit(ABS_RY, wdata->mp->absbit);
2819 set_bit(ABS_RZ, wdata->mp->absbit);
2820 input_set_abs_params(wdata->mp,
2821 ABS_RX, -16000, 16000, 4, 8);
2822 input_set_abs_params(wdata->mp,
2823 ABS_RY, -16000, 16000, 4, 8);
2824 input_set_abs_params(wdata->mp,
2825 ABS_RZ, -16000, 16000, 4, 8);
2826
2827 ret = input_register_device(wdata->mp);
2828 if (ret)
2829 goto err_free;
2830
2831 return 0;
2832
2833 err_free:
2834 input_free_device(wdata->mp);
2835 wdata->mp = NULL;
2836 return ret;
2837 }
2838
wiimod_mp_remove(const struct wiimod_ops * ops,struct wiimote_data * wdata)2839 static void wiimod_mp_remove(const struct wiimod_ops *ops,
2840 struct wiimote_data *wdata)
2841 {
2842 if (!wdata->mp)
2843 return;
2844
2845 input_unregister_device(wdata->mp);
2846 wdata->mp = NULL;
2847 }
2848
2849 const struct wiimod_ops wiimod_mp = {
2850 .flags = 0,
2851 .arg = 0,
2852 .probe = wiimod_mp_probe,
2853 .remove = wiimod_mp_remove,
2854 .in_mp = wiimod_mp_in_mp,
2855 };
2856
2857 /* module table */
2858
2859 static const struct wiimod_ops wiimod_dummy;
2860
2861 const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
2862 [WIIMOD_KEYS] = &wiimod_keys,
2863 [WIIMOD_RUMBLE] = &wiimod_rumble,
2864 [WIIMOD_BATTERY] = &wiimod_battery,
2865 [WIIMOD_LED1] = &wiimod_leds[0],
2866 [WIIMOD_LED2] = &wiimod_leds[1],
2867 [WIIMOD_LED3] = &wiimod_leds[2],
2868 [WIIMOD_LED4] = &wiimod_leds[3],
2869 [WIIMOD_ACCEL] = &wiimod_accel,
2870 [WIIMOD_IR] = &wiimod_ir,
2871 [WIIMOD_BUILTIN_MP] = &wiimod_builtin_mp,
2872 [WIIMOD_NO_MP] = &wiimod_no_mp,
2873 };
2874
2875 const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
2876 [WIIMOTE_EXT_NONE] = &wiimod_dummy,
2877 [WIIMOTE_EXT_UNKNOWN] = &wiimod_dummy,
2878 [WIIMOTE_EXT_NUNCHUK] = &wiimod_nunchuk,
2879 [WIIMOTE_EXT_CLASSIC_CONTROLLER] = &wiimod_classic,
2880 [WIIMOTE_EXT_BALANCE_BOARD] = &wiimod_bboard,
2881 [WIIMOTE_EXT_PRO_CONTROLLER] = &wiimod_pro,
2882 [WIIMOTE_EXT_DRUMS] = &wiimod_drums,
2883 [WIIMOTE_EXT_GUITAR] = &wiimod_guitar,
2884 [WIIMOTE_EXT_TURNTABLE] = &wiimod_turntable,
2885 };
2886