2 * HID driver for Nintendo Wii / Wii U peripherals
3 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
13 #include <linux/completion.h>
14 #include <linux/device.h>
15 #include <linux/hid.h>
16 #include <linux/input.h>
17 #include <linux/module.h>
18 #include <linux/mutex.h>
19 #include <linux/spinlock.h>
21 #include "hid-wiimote.h"
23 /* output queue handling */
25 static int wiimote_hid_send(struct hid_device
*hdev
, __u8
*buffer
,
31 if (!hdev
->hid_output_raw_report
)
34 buf
= kmemdup(buffer
, count
, GFP_KERNEL
);
38 ret
= hdev
->hid_output_raw_report(hdev
, buf
, count
, HID_OUTPUT_REPORT
);
44 static void wiimote_queue_worker(struct work_struct
*work
)
46 struct wiimote_queue
*queue
= container_of(work
, struct wiimote_queue
,
48 struct wiimote_data
*wdata
= container_of(queue
, struct wiimote_data
,
53 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
55 while (wdata
->queue
.head
!= wdata
->queue
.tail
) {
56 spin_unlock_irqrestore(&wdata
->queue
.lock
, flags
);
57 ret
= wiimote_hid_send(wdata
->hdev
,
58 wdata
->queue
.outq
[wdata
->queue
.tail
].data
,
59 wdata
->queue
.outq
[wdata
->queue
.tail
].size
);
61 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
62 wiimote_cmd_abort(wdata
);
63 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
65 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
67 wdata
->queue
.tail
= (wdata
->queue
.tail
+ 1) % WIIMOTE_BUFSIZE
;
70 spin_unlock_irqrestore(&wdata
->queue
.lock
, flags
);
73 static void wiimote_queue(struct wiimote_data
*wdata
, const __u8
*buffer
,
79 if (count
> HID_MAX_BUFFER_SIZE
) {
80 hid_warn(wdata
->hdev
, "Sending too large output report\n");
82 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
87 * Copy new request into our output queue and check whether the
88 * queue is full. If it is full, discard this request.
89 * If it is empty we need to start a new worker that will
90 * send out the buffer to the hid device.
91 * If the queue is not empty, then there must be a worker
92 * that is currently sending out our buffer and this worker
93 * will reschedule itself until the queue is empty.
96 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
98 memcpy(wdata
->queue
.outq
[wdata
->queue
.head
].data
, buffer
, count
);
99 wdata
->queue
.outq
[wdata
->queue
.head
].size
= count
;
100 newhead
= (wdata
->queue
.head
+ 1) % WIIMOTE_BUFSIZE
;
102 if (wdata
->queue
.head
== wdata
->queue
.tail
) {
103 wdata
->queue
.head
= newhead
;
104 schedule_work(&wdata
->queue
.worker
);
105 } else if (newhead
!= wdata
->queue
.tail
) {
106 wdata
->queue
.head
= newhead
;
108 hid_warn(wdata
->hdev
, "Output queue is full");
115 wiimote_cmd_abort(wdata
);
117 spin_unlock_irqrestore(&wdata
->queue
.lock
, flags
);
121 * This sets the rumble bit on the given output report if rumble is
123 * \cmd1 must point to the second byte in the output report => &cmd[1]
124 * This must be called on nearly every output report before passing it
125 * into the output queue!
127 static inline void wiiproto_keep_rumble(struct wiimote_data
*wdata
, __u8
*cmd1
)
129 if (wdata
->state
.flags
& WIIPROTO_FLAG_RUMBLE
)
133 void wiiproto_req_rumble(struct wiimote_data
*wdata
, __u8 rumble
)
138 if (rumble
== !!(wdata
->state
.flags
& WIIPROTO_FLAG_RUMBLE
))
142 wdata
->state
.flags
|= WIIPROTO_FLAG_RUMBLE
;
144 wdata
->state
.flags
&= ~WIIPROTO_FLAG_RUMBLE
;
146 cmd
[0] = WIIPROTO_REQ_RUMBLE
;
149 wiiproto_keep_rumble(wdata
, &cmd
[1]);
150 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
153 void wiiproto_req_leds(struct wiimote_data
*wdata
, int leds
)
157 leds
&= WIIPROTO_FLAGS_LEDS
;
158 if ((wdata
->state
.flags
& WIIPROTO_FLAGS_LEDS
) == leds
)
160 wdata
->state
.flags
= (wdata
->state
.flags
& ~WIIPROTO_FLAGS_LEDS
) | leds
;
162 cmd
[0] = WIIPROTO_REQ_LED
;
165 if (leds
& WIIPROTO_FLAG_LED1
)
167 if (leds
& WIIPROTO_FLAG_LED2
)
169 if (leds
& WIIPROTO_FLAG_LED3
)
171 if (leds
& WIIPROTO_FLAG_LED4
)
174 wiiproto_keep_rumble(wdata
, &cmd
[1]);
175 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
179 * Check what peripherals of the wiimote are currently
180 * active and select a proper DRM that supports all of
181 * the requested data inputs.
183 * Not all combinations are actually supported. The following
184 * combinations work only with limitations:
185 * - IR cam in extended or full mode disables any data transmission
186 * of extension controllers. There is no DRM mode that supports
187 * extension bytes plus extended/full IR.
188 * - IR cam with accelerometer and extension *_EXT8 is not supported.
189 * However, all extensions that need *_EXT8 are devices that don't
190 * support IR cameras. Hence, this shouldn't happen under normal
192 * - *_EXT16 is only supported in combination with buttons and
193 * accelerometer. No IR or similar can be active simultaneously. As
194 * above, all modules that require it are mutually exclusive with
195 * IR/etc. so this doesn't matter.
197 static __u8
select_drm(struct wiimote_data
*wdata
)
199 __u8 ir
= wdata
->state
.flags
& WIIPROTO_FLAGS_IR
;
202 ext
= (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_USED
) ||
203 (wdata
->state
.flags
& WIIPROTO_FLAG_MP_USED
);
205 /* some 3rd-party balance-boards are hard-coded to KEE, *sigh* */
206 if (wdata
->state
.devtype
== WIIMOTE_DEV_BALANCE_BOARD
) {
208 return WIIPROTO_REQ_DRM_KEE
;
210 return WIIPROTO_REQ_DRM_K
;
213 if (ir
== WIIPROTO_FLAG_IR_BASIC
) {
214 if (wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
) {
216 return WIIPROTO_REQ_DRM_KAIE
;
218 return WIIPROTO_REQ_DRM_KAI
;
220 return WIIPROTO_REQ_DRM_KIE
;
222 } else if (ir
== WIIPROTO_FLAG_IR_EXT
) {
223 return WIIPROTO_REQ_DRM_KAI
;
224 } else if (ir
== WIIPROTO_FLAG_IR_FULL
) {
225 return WIIPROTO_REQ_DRM_SKAI1
;
227 if (wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
) {
229 return WIIPROTO_REQ_DRM_KAE
;
231 return WIIPROTO_REQ_DRM_KA
;
234 return WIIPROTO_REQ_DRM_KEE
;
236 return WIIPROTO_REQ_DRM_K
;
241 void wiiproto_req_drm(struct wiimote_data
*wdata
, __u8 drm
)
245 if (wdata
->state
.flags
& WIIPROTO_FLAG_DRM_LOCKED
)
246 drm
= wdata
->state
.drm
;
247 else if (drm
== WIIPROTO_REQ_NULL
)
248 drm
= select_drm(wdata
);
250 cmd
[0] = WIIPROTO_REQ_DRM
;
254 wdata
->state
.drm
= drm
;
255 wiiproto_keep_rumble(wdata
, &cmd
[1]);
256 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
259 void wiiproto_req_status(struct wiimote_data
*wdata
)
263 cmd
[0] = WIIPROTO_REQ_SREQ
;
266 wiiproto_keep_rumble(wdata
, &cmd
[1]);
267 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
270 void wiiproto_req_accel(struct wiimote_data
*wdata
, __u8 accel
)
273 if (accel
== !!(wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
))
277 wdata
->state
.flags
|= WIIPROTO_FLAG_ACCEL
;
279 wdata
->state
.flags
&= ~WIIPROTO_FLAG_ACCEL
;
281 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
284 void wiiproto_req_ir1(struct wiimote_data
*wdata
, __u8 flags
)
288 cmd
[0] = WIIPROTO_REQ_IR1
;
291 wiiproto_keep_rumble(wdata
, &cmd
[1]);
292 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
295 void wiiproto_req_ir2(struct wiimote_data
*wdata
, __u8 flags
)
299 cmd
[0] = WIIPROTO_REQ_IR2
;
302 wiiproto_keep_rumble(wdata
, &cmd
[1]);
303 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
306 #define wiiproto_req_wreg(wdata, os, buf, sz) \
307 wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
309 #define wiiproto_req_weeprom(wdata, os, buf, sz) \
310 wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
312 static void wiiproto_req_wmem(struct wiimote_data
*wdata
, bool eeprom
,
313 __u32 offset
, const __u8
*buf
, __u8 size
)
317 if (size
> 16 || size
== 0) {
318 hid_warn(wdata
->hdev
, "Invalid length %d wmem request\n", size
);
322 memset(cmd
, 0, sizeof(cmd
));
323 cmd
[0] = WIIPROTO_REQ_WMEM
;
324 cmd
[2] = (offset
>> 16) & 0xff;
325 cmd
[3] = (offset
>> 8) & 0xff;
326 cmd
[4] = offset
& 0xff;
328 memcpy(&cmd
[6], buf
, size
);
333 wiiproto_keep_rumble(wdata
, &cmd
[1]);
334 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
337 void wiiproto_req_rmem(struct wiimote_data
*wdata
, bool eeprom
, __u32 offset
,
343 hid_warn(wdata
->hdev
, "Invalid length %d rmem request\n", size
);
347 cmd
[0] = WIIPROTO_REQ_RMEM
;
349 cmd
[2] = (offset
>> 16) & 0xff;
350 cmd
[3] = (offset
>> 8) & 0xff;
351 cmd
[4] = offset
& 0xff;
352 cmd
[5] = (size
>> 8) & 0xff;
353 cmd
[6] = size
& 0xff;
358 wiiproto_keep_rumble(wdata
, &cmd
[1]);
359 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
362 /* requries the cmd-mutex to be held */
363 int wiimote_cmd_write(struct wiimote_data
*wdata
, __u32 offset
,
364 const __u8
*wmem
, __u8 size
)
369 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
370 wiimote_cmd_set(wdata
, WIIPROTO_REQ_WMEM
, 0);
371 wiiproto_req_wreg(wdata
, offset
, wmem
, size
);
372 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
374 ret
= wiimote_cmd_wait(wdata
);
375 if (!ret
&& wdata
->state
.cmd_err
)
381 /* requries the cmd-mutex to be held */
382 ssize_t
wiimote_cmd_read(struct wiimote_data
*wdata
, __u32 offset
, __u8
*rmem
,
388 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
389 wdata
->state
.cmd_read_size
= size
;
390 wdata
->state
.cmd_read_buf
= rmem
;
391 wiimote_cmd_set(wdata
, WIIPROTO_REQ_RMEM
, offset
& 0xffff);
392 wiiproto_req_rreg(wdata
, offset
, size
);
393 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
395 ret
= wiimote_cmd_wait(wdata
);
397 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
398 wdata
->state
.cmd_read_buf
= NULL
;
399 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
402 if (wdata
->state
.cmd_read_size
== 0)
405 ret
= wdata
->state
.cmd_read_size
;
411 /* requires the cmd-mutex to be held */
412 static int wiimote_cmd_init_ext(struct wiimote_data
*wdata
)
417 /* initialize extension */
419 ret
= wiimote_cmd_write(wdata
, 0xa400f0, &wmem
, sizeof(wmem
));
423 /* disable default encryption */
425 ret
= wiimote_cmd_write(wdata
, 0xa400fb, &wmem
, sizeof(wmem
));
432 /* requires the cmd-mutex to be held */
433 static __u8
wiimote_cmd_read_ext(struct wiimote_data
*wdata
, __u8
*rmem
)
437 /* read extension ID */
438 ret
= wiimote_cmd_read(wdata
, 0xa400fa, rmem
, 6);
440 return WIIMOTE_EXT_NONE
;
442 hid_dbg(wdata
->hdev
, "extension ID: %02x:%02x %02x:%02x %02x:%02x\n",
443 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
445 if (rmem
[0] == 0xff && rmem
[1] == 0xff && rmem
[2] == 0xff &&
446 rmem
[3] == 0xff && rmem
[4] == 0xff && rmem
[5] == 0xff)
447 return WIIMOTE_EXT_NONE
;
449 if (rmem
[4] == 0x00 && rmem
[5] == 0x00)
450 return WIIMOTE_EXT_NUNCHUK
;
451 if (rmem
[4] == 0x01 && rmem
[5] == 0x01)
452 return WIIMOTE_EXT_CLASSIC_CONTROLLER
;
453 if (rmem
[4] == 0x04 && rmem
[5] == 0x02)
454 return WIIMOTE_EXT_BALANCE_BOARD
;
455 if (rmem
[4] == 0x01 && rmem
[5] == 0x20)
456 return WIIMOTE_EXT_PRO_CONTROLLER
;
458 return WIIMOTE_EXT_UNKNOWN
;
461 /* requires the cmd-mutex to be held */
462 static int wiimote_cmd_init_mp(struct wiimote_data
*wdata
)
469 ret
= wiimote_cmd_write(wdata
, 0xa600f0, &wmem
, sizeof(wmem
));
473 /* disable default encryption */
475 ret
= wiimote_cmd_write(wdata
, 0xa600fb, &wmem
, sizeof(wmem
));
482 /* requires the cmd-mutex to be held */
483 static bool wiimote_cmd_map_mp(struct wiimote_data
*wdata
, __u8 exttype
)
487 /* map MP with correct pass-through mode */
489 case WIIMOTE_EXT_CLASSIC_CONTROLLER
:
492 case WIIMOTE_EXT_NUNCHUK
:
500 return wiimote_cmd_write(wdata
, 0xa600fe, &wmem
, sizeof(wmem
));
503 /* requires the cmd-mutex to be held */
504 static bool wiimote_cmd_read_mp(struct wiimote_data
*wdata
, __u8
*rmem
)
508 /* read motion plus ID */
509 ret
= wiimote_cmd_read(wdata
, 0xa600fa, rmem
, 6);
513 hid_dbg(wdata
->hdev
, "motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
514 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
519 hid_info(wdata
->hdev
, "unknown motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
520 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
525 /* requires the cmd-mutex to be held */
526 static __u8
wiimote_cmd_read_mp_mapped(struct wiimote_data
*wdata
)
531 /* read motion plus ID */
532 ret
= wiimote_cmd_read(wdata
, 0xa400fa, rmem
, 6);
534 return WIIMOTE_MP_NONE
;
536 hid_dbg(wdata
->hdev
, "mapped motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
537 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
539 if (rmem
[0] == 0xff && rmem
[1] == 0xff && rmem
[2] == 0xff &&
540 rmem
[3] == 0xff && rmem
[4] == 0xff && rmem
[5] == 0xff)
541 return WIIMOTE_MP_NONE
;
543 if (rmem
[4] == 0x04 && rmem
[5] == 0x05)
544 return WIIMOTE_MP_SINGLE
;
545 else if (rmem
[4] == 0x05 && rmem
[5] == 0x05)
546 return WIIMOTE_MP_PASSTHROUGH_NUNCHUK
;
547 else if (rmem
[4] == 0x07 && rmem
[5] == 0x05)
548 return WIIMOTE_MP_PASSTHROUGH_CLASSIC
;
550 return WIIMOTE_MP_UNKNOWN
;
553 /* device module handling */
555 static const __u8
* const wiimote_devtype_mods
[WIIMOTE_DEV_NUM
] = {
556 [WIIMOTE_DEV_PENDING
] = (const __u8
[]){
559 [WIIMOTE_DEV_UNKNOWN
] = (const __u8
[]){
563 [WIIMOTE_DEV_GENERIC
] = (const __u8
[]){
575 [WIIMOTE_DEV_GEN10
] = (const __u8
[]){
587 [WIIMOTE_DEV_GEN20
] = (const __u8
[]){
600 [WIIMOTE_DEV_BALANCE_BOARD
] = (const __u8
[]) {
606 [WIIMOTE_DEV_PRO_CONTROLLER
] = (const __u8
[]) {
617 static void wiimote_modules_load(struct wiimote_data
*wdata
,
618 unsigned int devtype
)
620 bool need_input
= false;
621 const __u8
*mods
, *iter
;
622 const struct wiimod_ops
*ops
;
625 mods
= wiimote_devtype_mods
[devtype
];
627 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
628 if (wiimod_table
[*iter
]->flags
& WIIMOD_FLAG_INPUT
) {
635 wdata
->input
= input_allocate_device();
639 input_set_drvdata(wdata
->input
, wdata
);
640 wdata
->input
->dev
.parent
= &wdata
->hdev
->dev
;
641 wdata
->input
->id
.bustype
= wdata
->hdev
->bus
;
642 wdata
->input
->id
.vendor
= wdata
->hdev
->vendor
;
643 wdata
->input
->id
.product
= wdata
->hdev
->product
;
644 wdata
->input
->id
.version
= wdata
->hdev
->version
;
645 wdata
->input
->name
= WIIMOTE_NAME
;
648 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
649 ops
= wiimod_table
[*iter
];
653 ret
= ops
->probe(ops
, wdata
);
659 ret
= input_register_device(wdata
->input
);
664 spin_lock_irq(&wdata
->state
.lock
);
665 wdata
->state
.devtype
= devtype
;
666 spin_unlock_irq(&wdata
->state
.lock
);
670 for ( ; iter
-- != mods
; ) {
671 ops
= wiimod_table
[*iter
];
673 ops
->remove(ops
, wdata
);
677 input_free_device(wdata
->input
);
682 static void wiimote_modules_unload(struct wiimote_data
*wdata
)
684 const __u8
*mods
, *iter
;
685 const struct wiimod_ops
*ops
;
688 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
690 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
691 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
692 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
694 /* find end of list */
695 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
)
699 input_get_device(wdata
->input
);
700 input_unregister_device(wdata
->input
);
703 for ( ; iter
-- != mods
; ) {
704 ops
= wiimod_table
[*iter
];
706 ops
->remove(ops
, wdata
);
710 input_put_device(wdata
->input
);
715 /* device extension handling */
717 static void wiimote_ext_load(struct wiimote_data
*wdata
, unsigned int ext
)
720 const struct wiimod_ops
*ops
;
723 ops
= wiimod_ext_table
[ext
];
726 ret
= ops
->probe(ops
, wdata
);
728 ext
= WIIMOTE_EXT_UNKNOWN
;
731 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
732 wdata
->state
.exttype
= ext
;
733 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
736 static void wiimote_ext_unload(struct wiimote_data
*wdata
)
739 const struct wiimod_ops
*ops
;
741 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
743 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
744 wdata
->state
.exttype
= WIIMOTE_EXT_UNKNOWN
;
745 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_USED
;
746 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
749 ops
->remove(ops
, wdata
);
752 static void wiimote_mp_load(struct wiimote_data
*wdata
)
755 const struct wiimod_ops
*ops
;
761 ret
= ops
->probe(ops
, wdata
);
766 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
767 wdata
->state
.mp
= mode
;
768 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
771 static void wiimote_mp_unload(struct wiimote_data
*wdata
)
774 const struct wiimod_ops
*ops
;
776 if (wdata
->state
.mp
< 2)
781 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
783 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_USED
;
784 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
787 ops
->remove(ops
, wdata
);
790 /* device (re-)initialization and detection */
792 static const char *wiimote_devtype_names
[WIIMOTE_DEV_NUM
] = {
793 [WIIMOTE_DEV_PENDING
] = "Pending",
794 [WIIMOTE_DEV_UNKNOWN
] = "Unknown",
795 [WIIMOTE_DEV_GENERIC
] = "Generic",
796 [WIIMOTE_DEV_GEN10
] = "Nintendo Wii Remote (Gen 1)",
797 [WIIMOTE_DEV_GEN20
] = "Nintendo Wii Remote Plus (Gen 2)",
798 [WIIMOTE_DEV_BALANCE_BOARD
] = "Nintendo Wii Balance Board",
799 [WIIMOTE_DEV_PRO_CONTROLLER
] = "Nintendo Wii U Pro Controller",
802 /* Try to guess the device type based on all collected information. We
803 * first try to detect by static extension types, then VID/PID and the
804 * device name. If we cannot detect the device, we use
805 * WIIMOTE_DEV_GENERIC so all modules will get probed on the device. */
806 static void wiimote_init_set_type(struct wiimote_data
*wdata
,
809 __u8 devtype
= WIIMOTE_DEV_GENERIC
;
810 __u16 vendor
, product
;
813 vendor
= wdata
->hdev
->vendor
;
814 product
= wdata
->hdev
->product
;
815 name
= wdata
->hdev
->name
;
817 if (exttype
== WIIMOTE_EXT_BALANCE_BOARD
) {
818 devtype
= WIIMOTE_DEV_BALANCE_BOARD
;
820 } else if (exttype
== WIIMOTE_EXT_PRO_CONTROLLER
) {
821 devtype
= WIIMOTE_DEV_PRO_CONTROLLER
;
825 if (!strcmp(name
, "Nintendo RVL-CNT-01")) {
826 devtype
= WIIMOTE_DEV_GEN10
;
828 } else if (!strcmp(name
, "Nintendo RVL-CNT-01-TR")) {
829 devtype
= WIIMOTE_DEV_GEN20
;
831 } else if (!strcmp(name
, "Nintendo RVL-WBC-01")) {
832 devtype
= WIIMOTE_DEV_BALANCE_BOARD
;
834 } else if (!strcmp(name
, "Nintendo RVL-CNT-01-UC")) {
835 devtype
= WIIMOTE_DEV_PRO_CONTROLLER
;
839 if (vendor
== USB_VENDOR_ID_NINTENDO
) {
840 if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE
) {
841 devtype
= WIIMOTE_DEV_GEN10
;
843 } else if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE2
) {
844 devtype
= WIIMOTE_DEV_GEN20
;
850 if (devtype
== WIIMOTE_DEV_GENERIC
)
851 hid_info(wdata
->hdev
, "cannot detect device; NAME: %s VID: %04x PID: %04x EXT: %04x\n",
852 name
, vendor
, product
, exttype
);
854 hid_info(wdata
->hdev
, "detected device: %s\n",
855 wiimote_devtype_names
[devtype
]);
857 wiimote_modules_load(wdata
, devtype
);
860 static void wiimote_init_detect(struct wiimote_data
*wdata
)
862 __u8 exttype
= WIIMOTE_EXT_NONE
, extdata
[6];
866 wiimote_cmd_acquire_noint(wdata
);
868 spin_lock_irq(&wdata
->state
.lock
);
869 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
870 wiimote_cmd_set(wdata
, WIIPROTO_REQ_SREQ
, 0);
871 wiiproto_req_status(wdata
);
872 spin_unlock_irq(&wdata
->state
.lock
);
874 ret
= wiimote_cmd_wait_noint(wdata
);
878 spin_lock_irq(&wdata
->state
.lock
);
879 ext
= wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
;
880 spin_unlock_irq(&wdata
->state
.lock
);
885 wiimote_cmd_init_ext(wdata
);
886 exttype
= wiimote_cmd_read_ext(wdata
, extdata
);
889 wiimote_cmd_release(wdata
);
890 wiimote_init_set_type(wdata
, exttype
);
892 /* schedule MP timer */
893 spin_lock_irq(&wdata
->state
.lock
);
894 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_BUILTIN_MP
) &&
895 !(wdata
->state
.flags
& WIIPROTO_FLAG_NO_MP
))
896 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
897 spin_unlock_irq(&wdata
->state
.lock
);
901 * MP hotplug events are not generated by the wiimote. Therefore, we need
902 * polling to detect it. We use a 4s interval for polling MP registers. This
903 * seems reasonable considering applications can trigger it manually via
906 static void wiimote_init_poll_mp(struct wiimote_data
*wdata
)
911 wiimote_cmd_acquire_noint(wdata
);
912 wiimote_cmd_init_mp(wdata
);
913 mp
= wiimote_cmd_read_mp(wdata
, mpdata
);
914 wiimote_cmd_release(wdata
);
916 /* load/unload MP module if it changed */
918 if (!wdata
->state
.mp
) {
919 hid_info(wdata
->hdev
, "detected extension: Nintendo Wii Motion Plus\n");
920 wiimote_mp_load(wdata
);
922 } else if (wdata
->state
.mp
) {
923 wiimote_mp_unload(wdata
);
926 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
930 * Check whether the wiimote is in the expected state. The extension registers
931 * may change during hotplug and initialization so we might get hotplug events
932 * that we caused by remapping some memory.
933 * We use some heuristics here to check known states. If the wiimote is in the
934 * expected state, we can ignore the hotplug event.
936 * Returns "true" if the device is in expected state, "false" if we should
937 * redo hotplug handling and extension initialization.
939 static bool wiimote_init_check(struct wiimote_data
*wdata
)
945 spin_lock_irq(&wdata
->state
.lock
);
946 flags
= wdata
->state
.flags
;
947 spin_unlock_irq(&wdata
->state
.lock
);
949 wiimote_cmd_acquire_noint(wdata
);
951 /* If MP is used and active, but the extension is not, we expect:
952 * read_mp_mapped() == WIIMOTE_MP_SINGLE
953 * state.flags == !EXT_ACTIVE && !MP_PLUGGED && MP_ACTIVE
954 * We do not check EXT_PLUGGED because it might change during
955 * initialization of MP without extensions.
956 * - If MP is unplugged/replugged, read_mp_mapped() fails
957 * - If EXT is plugged, MP_PLUGGED will get set */
958 if (wdata
->state
.exttype
== WIIMOTE_EXT_NONE
&&
959 wdata
->state
.mp
> 0 && (flags
& WIIPROTO_FLAG_MP_USED
)) {
960 type
= wiimote_cmd_read_mp_mapped(wdata
);
961 ret
= type
== WIIMOTE_MP_SINGLE
;
963 spin_lock_irq(&wdata
->state
.lock
);
964 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
965 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
);
966 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
967 spin_unlock_irq(&wdata
->state
.lock
);
970 hid_dbg(wdata
->hdev
, "state left: !EXT && MP\n");
972 /* while MP is mapped, we get EXT_PLUGGED events */
978 /* If MP is unused, but the extension port is used, we expect:
979 * read_ext == state.exttype
980 * state.flags == !MP_ACTIVE && EXT_ACTIVE
981 * - If MP is plugged/unplugged, our timer detects it
982 * - If EXT is unplugged/replugged, EXT_ACTIVE will become unset */
983 if (!(flags
& WIIPROTO_FLAG_MP_USED
) &&
984 wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
) {
985 type
= wiimote_cmd_read_ext(wdata
, data
);
986 ret
= type
== wdata
->state
.exttype
;
988 spin_lock_irq(&wdata
->state
.lock
);
989 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
990 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
991 spin_unlock_irq(&wdata
->state
.lock
);
994 hid_dbg(wdata
->hdev
, "state left: EXT && !MP\n");
996 /* poll MP for hotplug events */
1002 /* If neither MP nor an extension are used, we expect:
1003 * read_ext() == WIIMOTE_EXT_NONE
1004 * state.flags == !MP_ACTIVE && !EXT_ACTIVE && !EXT_PLUGGED
1005 * No need to perform any action in this case as everything is
1007 * - If MP is plugged/unplugged, our timer detects it
1008 * - If EXT is plugged, EXT_PLUGGED will be set */
1009 if (!(flags
& WIIPROTO_FLAG_MP_USED
) &&
1010 wdata
->state
.exttype
== WIIMOTE_EXT_NONE
) {
1011 type
= wiimote_cmd_read_ext(wdata
, data
);
1012 ret
= type
== wdata
->state
.exttype
;
1014 spin_lock_irq(&wdata
->state
.lock
);
1015 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
1016 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
1017 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
);
1018 spin_unlock_irq(&wdata
->state
.lock
);
1021 hid_dbg(wdata
->hdev
, "state left: !EXT && !MP\n");
1023 /* poll MP for hotplug events */
1029 /* The trickiest part is if both EXT and MP are active. We cannot read
1030 * the EXT ID, anymore, because MP is mapped over it. However, we use
1031 * a handy trick here:
1032 * - EXT_ACTIVE is unset whenever !MP_PLUGGED is sent
1033 * MP_PLUGGED might be re-sent again before we are scheduled, but
1034 * EXT_ACTIVE will stay unset.
1035 * So it is enough to check for mp_mapped() and MP_ACTIVE and
1036 * EXT_ACTIVE. EXT_PLUGGED is a sanity check. */
1037 if (wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
&&
1038 wdata
->state
.mp
> 0 && (flags
& WIIPROTO_FLAG_MP_USED
)) {
1039 type
= wiimote_cmd_read_mp_mapped(wdata
);
1040 ret
= type
!= WIIMOTE_MP_NONE
;
1041 ret
= ret
&& type
!= WIIMOTE_MP_UNKNOWN
;
1042 ret
= ret
&& type
!= WIIMOTE_MP_SINGLE
;
1044 spin_lock_irq(&wdata
->state
.lock
);
1045 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
);
1046 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
1047 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
1048 spin_unlock_irq(&wdata
->state
.lock
);
1051 hid_dbg(wdata
->hdev
, "state left: EXT && MP\n");
1053 /* while MP is mapped, we get EXT_PLUGGED events */
1063 wiimote_cmd_release(wdata
);
1065 /* only poll for MP if requested and if state didn't change */
1066 if (ret
&& poll_mp
&& !(flags
& WIIPROTO_FLAG_BUILTIN_MP
) &&
1067 !(flags
& WIIPROTO_FLAG_NO_MP
))
1068 wiimote_init_poll_mp(wdata
);
1073 static const char *wiimote_exttype_names
[WIIMOTE_EXT_NUM
] = {
1074 [WIIMOTE_EXT_NONE
] = "None",
1075 [WIIMOTE_EXT_UNKNOWN
] = "Unknown",
1076 [WIIMOTE_EXT_NUNCHUK
] = "Nintendo Wii Nunchuk",
1077 [WIIMOTE_EXT_CLASSIC_CONTROLLER
] = "Nintendo Wii Classic Controller",
1078 [WIIMOTE_EXT_BALANCE_BOARD
] = "Nintendo Wii Balance Board",
1079 [WIIMOTE_EXT_PRO_CONTROLLER
] = "Nintendo Wii U Pro Controller",
1083 * Handle hotplug events
1084 * If we receive an hotplug event and the device-check failed, we deinitialize
1085 * the extension ports, re-read all extension IDs and set the device into
1086 * the desired state. This involves mapping MP into the main extension
1087 * registers, setting up extension passthrough modes and initializing the
1088 * requested extensions.
1090 static void wiimote_init_hotplug(struct wiimote_data
*wdata
)
1092 __u8 exttype
, extdata
[6], mpdata
[6];
1096 hid_dbg(wdata
->hdev
, "detect extensions..\n");
1098 wiimote_cmd_acquire_noint(wdata
);
1100 spin_lock_irq(&wdata
->state
.lock
);
1102 /* get state snapshot that we will then work on */
1103 flags
= wdata
->state
.flags
;
1105 /* disable event forwarding temporarily */
1106 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1107 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_ACTIVE
;
1109 spin_unlock_irq(&wdata
->state
.lock
);
1111 /* init extension and MP (deactivates current extension or MP) */
1112 wiimote_cmd_init_ext(wdata
);
1113 if (flags
& WIIPROTO_FLAG_NO_MP
) {
1116 wiimote_cmd_init_mp(wdata
);
1117 mp
= wiimote_cmd_read_mp(wdata
, mpdata
);
1119 exttype
= wiimote_cmd_read_ext(wdata
, extdata
);
1121 wiimote_cmd_release(wdata
);
1123 /* load/unload extension module if it changed */
1124 if (exttype
!= wdata
->state
.exttype
) {
1125 /* unload previous extension */
1126 wiimote_ext_unload(wdata
);
1128 if (exttype
== WIIMOTE_EXT_UNKNOWN
) {
1129 hid_info(wdata
->hdev
, "cannot detect extension; %02x:%02x %02x:%02x %02x:%02x\n",
1130 extdata
[0], extdata
[1], extdata
[2],
1131 extdata
[3], extdata
[4], extdata
[5]);
1132 } else if (exttype
== WIIMOTE_EXT_NONE
) {
1133 spin_lock_irq(&wdata
->state
.lock
);
1134 wdata
->state
.exttype
= WIIMOTE_EXT_NONE
;
1135 spin_unlock_irq(&wdata
->state
.lock
);
1137 hid_info(wdata
->hdev
, "detected extension: %s\n",
1138 wiimote_exttype_names
[exttype
]);
1139 /* try loading new extension */
1140 wiimote_ext_load(wdata
, exttype
);
1144 /* load/unload MP module if it changed */
1146 if (!wdata
->state
.mp
) {
1147 hid_info(wdata
->hdev
, "detected extension: Nintendo Wii Motion Plus\n");
1148 wiimote_mp_load(wdata
);
1150 } else if (wdata
->state
.mp
) {
1151 wiimote_mp_unload(wdata
);
1154 /* if MP is not used, do not map or activate it */
1155 if (!(flags
& WIIPROTO_FLAG_MP_USED
))
1158 /* map MP into main extension registers if used */
1160 wiimote_cmd_acquire_noint(wdata
);
1161 wiimote_cmd_map_mp(wdata
, exttype
);
1162 wiimote_cmd_release(wdata
);
1164 /* delete MP hotplug timer */
1165 del_timer_sync(&wdata
->timer
);
1167 /* reschedule MP hotplug timer */
1168 if (!(flags
& WIIPROTO_FLAG_BUILTIN_MP
) &&
1169 !(flags
& WIIPROTO_FLAG_NO_MP
))
1170 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
1173 spin_lock_irq(&wdata
->state
.lock
);
1175 /* enable data forwarding again and set expected hotplug state */
1177 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_ACTIVE
;
1178 if (wdata
->state
.exttype
== WIIMOTE_EXT_NONE
) {
1179 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1180 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1182 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1183 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_PLUGGED
;
1184 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_ACTIVE
;
1186 } else if (wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
) {
1187 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_ACTIVE
;
1190 /* request status report for hotplug state updates */
1191 wiiproto_req_status(wdata
);
1193 spin_unlock_irq(&wdata
->state
.lock
);
1195 hid_dbg(wdata
->hdev
, "detected extensions: MP: %d EXT: %d\n",
1196 wdata
->state
.mp
, wdata
->state
.exttype
);
1199 static void wiimote_init_worker(struct work_struct
*work
)
1201 struct wiimote_data
*wdata
= container_of(work
, struct wiimote_data
,
1203 bool changed
= false;
1205 if (wdata
->state
.devtype
== WIIMOTE_DEV_PENDING
) {
1206 wiimote_init_detect(wdata
);
1210 if (changed
|| !wiimote_init_check(wdata
))
1211 wiimote_init_hotplug(wdata
);
1214 kobject_uevent(&wdata
->hdev
->dev
.kobj
, KOBJ_CHANGE
);
1217 void __wiimote_schedule(struct wiimote_data
*wdata
)
1219 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXITING
))
1220 schedule_work(&wdata
->init_worker
);
1223 static void wiimote_schedule(struct wiimote_data
*wdata
)
1225 unsigned long flags
;
1227 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1228 __wiimote_schedule(wdata
);
1229 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1232 static void wiimote_init_timeout(unsigned long arg
)
1234 struct wiimote_data
*wdata
= (void*)arg
;
1236 wiimote_schedule(wdata
);
1239 /* protocol handlers */
1241 static void handler_keys(struct wiimote_data
*wdata
, const __u8
*payload
)
1243 const __u8
*iter
, *mods
;
1244 const struct wiimod_ops
*ops
;
1246 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1248 ops
->in_keys(wdata
, payload
);
1252 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1253 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1254 ops
= wiimod_table
[*iter
];
1256 ops
->in_keys(wdata
, payload
);
1262 static void handler_accel(struct wiimote_data
*wdata
, const __u8
*payload
)
1264 const __u8
*iter
, *mods
;
1265 const struct wiimod_ops
*ops
;
1267 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1268 if (ops
->in_accel
) {
1269 ops
->in_accel(wdata
, payload
);
1273 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1274 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1275 ops
= wiimod_table
[*iter
];
1276 if (ops
->in_accel
) {
1277 ops
->in_accel(wdata
, payload
);
1283 static bool valid_ext_handler(const struct wiimod_ops
*ops
, size_t len
)
1287 if ((ops
->flags
& WIIMOD_FLAG_EXT8
) && len
< 8)
1289 if ((ops
->flags
& WIIMOD_FLAG_EXT16
) && len
< 16)
1295 static void handler_ext(struct wiimote_data
*wdata
, const __u8
*payload
,
1298 static const __u8 invalid
[21] = { 0xff, 0xff, 0xff, 0xff,
1299 0xff, 0xff, 0xff, 0xff,
1300 0xff, 0xff, 0xff, 0xff,
1301 0xff, 0xff, 0xff, 0xff,
1302 0xff, 0xff, 0xff, 0xff,
1304 const __u8
*iter
, *mods
;
1305 const struct wiimod_ops
*ops
;
1310 if (len
< 6 || !memcmp(payload
, invalid
, len
))
1313 /* if MP is active, track MP slot hotplugging */
1314 if (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
) {
1315 /* this bit is set for invalid events (eg. during hotplug) */
1316 if (payload
[5] & 0x01)
1319 if (payload
[4] & 0x01) {
1320 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
)) {
1321 hid_dbg(wdata
->hdev
, "MP hotplug: 1\n");
1322 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_PLUGGED
;
1323 __wiimote_schedule(wdata
);
1326 if (wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
) {
1327 hid_dbg(wdata
->hdev
, "MP hotplug: 0\n");
1328 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1329 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1330 __wiimote_schedule(wdata
);
1334 /* detect MP data that is sent interleaved with EXT data */
1335 is_mp
= payload
[5] & 0x02;
1340 /* ignore EXT events if no extension is active */
1341 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
) && !is_mp
)
1344 /* try forwarding to extension handler, first */
1345 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1346 if (is_mp
&& ops
->in_mp
) {
1347 ops
->in_mp(wdata
, payload
);
1349 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1350 ops
->in_ext(wdata
, payload
);
1354 /* try forwarding to MP handler */
1356 if (is_mp
&& ops
->in_mp
) {
1357 ops
->in_mp(wdata
, payload
);
1359 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1360 ops
->in_ext(wdata
, payload
);
1364 /* try forwarding to loaded modules */
1365 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1366 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1367 ops
= wiimod_table
[*iter
];
1368 if (is_mp
&& ops
->in_mp
) {
1369 ops
->in_mp(wdata
, payload
);
1371 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1372 ops
->in_ext(wdata
, payload
);
1378 #define ir_to_input0(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 0)
1379 #define ir_to_input1(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 1)
1380 #define ir_to_input2(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 2)
1381 #define ir_to_input3(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 3)
1383 static void handler_ir(struct wiimote_data
*wdata
, const __u8
*payload
,
1384 bool packed
, unsigned int id
)
1386 const __u8
*iter
, *mods
;
1387 const struct wiimod_ops
*ops
;
1389 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1391 ops
->in_ir(wdata
, payload
, packed
, id
);
1395 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1396 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1397 ops
= wiimod_table
[*iter
];
1399 ops
->in_ir(wdata
, payload
, packed
, id
);
1405 /* reduced status report with "BB BB" key data only */
1406 static void handler_status_K(struct wiimote_data
*wdata
,
1407 const __u8
*payload
)
1409 handler_keys(wdata
, payload
);
1411 /* on status reports the drm is reset so we need to resend the drm */
1412 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
1415 /* extended status report with "BB BB LF 00 00 VV" data */
1416 static void handler_status(struct wiimote_data
*wdata
, const __u8
*payload
)
1418 handler_status_K(wdata
, payload
);
1420 /* update extension status */
1421 if (payload
[2] & 0x02) {
1422 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
)) {
1423 hid_dbg(wdata
->hdev
, "EXT hotplug: 1\n");
1424 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_PLUGGED
;
1425 __wiimote_schedule(wdata
);
1428 if (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
) {
1429 hid_dbg(wdata
->hdev
, "EXT hotplug: 0\n");
1430 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1431 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1432 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1433 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_ACTIVE
;
1434 __wiimote_schedule(wdata
);
1438 wdata
->state
.cmd_battery
= payload
[5];
1439 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_SREQ
, 0))
1440 wiimote_cmd_complete(wdata
);
1443 /* reduced generic report with "BB BB" key data only */
1444 static void handler_generic_K(struct wiimote_data
*wdata
, const __u8
*payload
)
1446 handler_keys(wdata
, payload
);
1449 static void handler_data(struct wiimote_data
*wdata
, const __u8
*payload
)
1451 __u16 offset
= payload
[3] << 8 | payload
[4];
1452 __u8 size
= (payload
[2] >> 4) + 1;
1453 __u8 err
= payload
[2] & 0x0f;
1455 handler_keys(wdata
, payload
);
1457 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_RMEM
, offset
)) {
1460 else if (size
> wdata
->state
.cmd_read_size
)
1461 size
= wdata
->state
.cmd_read_size
;
1463 wdata
->state
.cmd_read_size
= size
;
1464 if (wdata
->state
.cmd_read_buf
)
1465 memcpy(wdata
->state
.cmd_read_buf
, &payload
[5], size
);
1466 wiimote_cmd_complete(wdata
);
1470 static void handler_return(struct wiimote_data
*wdata
, const __u8
*payload
)
1472 __u8 err
= payload
[3];
1473 __u8 cmd
= payload
[2];
1475 handler_keys(wdata
, payload
);
1477 if (wiimote_cmd_pending(wdata
, cmd
, 0)) {
1478 wdata
->state
.cmd_err
= err
;
1479 wiimote_cmd_complete(wdata
);
1481 hid_warn(wdata
->hdev
, "Remote error %hhu on req %hhu\n", err
,
1486 static void handler_drm_KA(struct wiimote_data
*wdata
, const __u8
*payload
)
1488 handler_keys(wdata
, payload
);
1489 handler_accel(wdata
, payload
);
1492 static void handler_drm_KE(struct wiimote_data
*wdata
, const __u8
*payload
)
1494 handler_keys(wdata
, payload
);
1495 handler_ext(wdata
, &payload
[2], 8);
1498 static void handler_drm_KAI(struct wiimote_data
*wdata
, const __u8
*payload
)
1500 handler_keys(wdata
, payload
);
1501 handler_accel(wdata
, payload
);
1502 ir_to_input0(wdata
, &payload
[5], false);
1503 ir_to_input1(wdata
, &payload
[8], false);
1504 ir_to_input2(wdata
, &payload
[11], false);
1505 ir_to_input3(wdata
, &payload
[14], false);
1508 static void handler_drm_KEE(struct wiimote_data
*wdata
, const __u8
*payload
)
1510 handler_keys(wdata
, payload
);
1511 handler_ext(wdata
, &payload
[2], 19);
1514 static void handler_drm_KIE(struct wiimote_data
*wdata
, const __u8
*payload
)
1516 handler_keys(wdata
, payload
);
1517 ir_to_input0(wdata
, &payload
[2], false);
1518 ir_to_input1(wdata
, &payload
[4], true);
1519 ir_to_input2(wdata
, &payload
[7], false);
1520 ir_to_input3(wdata
, &payload
[9], true);
1521 handler_ext(wdata
, &payload
[12], 9);
1524 static void handler_drm_KAE(struct wiimote_data
*wdata
, const __u8
*payload
)
1526 handler_keys(wdata
, payload
);
1527 handler_accel(wdata
, payload
);
1528 handler_ext(wdata
, &payload
[5], 16);
1531 static void handler_drm_KAIE(struct wiimote_data
*wdata
, const __u8
*payload
)
1533 handler_keys(wdata
, payload
);
1534 handler_accel(wdata
, payload
);
1535 ir_to_input0(wdata
, &payload
[5], false);
1536 ir_to_input1(wdata
, &payload
[7], true);
1537 ir_to_input2(wdata
, &payload
[10], false);
1538 ir_to_input3(wdata
, &payload
[12], true);
1539 handler_ext(wdata
, &payload
[15], 6);
1542 static void handler_drm_E(struct wiimote_data
*wdata
, const __u8
*payload
)
1544 handler_ext(wdata
, payload
, 21);
1547 static void handler_drm_SKAI1(struct wiimote_data
*wdata
, const __u8
*payload
)
1549 handler_keys(wdata
, payload
);
1551 wdata
->state
.accel_split
[0] = payload
[2];
1552 wdata
->state
.accel_split
[1] = (payload
[0] >> 1) & (0x10 | 0x20);
1553 wdata
->state
.accel_split
[1] |= (payload
[1] << 1) & (0x40 | 0x80);
1555 ir_to_input0(wdata
, &payload
[3], false);
1556 ir_to_input1(wdata
, &payload
[12], false);
1559 static void handler_drm_SKAI2(struct wiimote_data
*wdata
, const __u8
*payload
)
1563 handler_keys(wdata
, payload
);
1565 wdata
->state
.accel_split
[1] |= (payload
[0] >> 5) & (0x01 | 0x02);
1566 wdata
->state
.accel_split
[1] |= (payload
[1] >> 3) & (0x04 | 0x08);
1570 buf
[2] = wdata
->state
.accel_split
[0];
1571 buf
[3] = payload
[2];
1572 buf
[4] = wdata
->state
.accel_split
[1];
1573 handler_accel(wdata
, buf
);
1575 ir_to_input2(wdata
, &payload
[3], false);
1576 ir_to_input3(wdata
, &payload
[12], false);
1579 struct wiiproto_handler
{
1582 void (*func
)(struct wiimote_data
*wdata
, const __u8
*payload
);
1585 static struct wiiproto_handler handlers
[] = {
1586 { .id
= WIIPROTO_REQ_STATUS
, .size
= 6, .func
= handler_status
},
1587 { .id
= WIIPROTO_REQ_STATUS
, .size
= 2, .func
= handler_status_K
},
1588 { .id
= WIIPROTO_REQ_DATA
, .size
= 21, .func
= handler_data
},
1589 { .id
= WIIPROTO_REQ_DATA
, .size
= 2, .func
= handler_generic_K
},
1590 { .id
= WIIPROTO_REQ_RETURN
, .size
= 4, .func
= handler_return
},
1591 { .id
= WIIPROTO_REQ_RETURN
, .size
= 2, .func
= handler_generic_K
},
1592 { .id
= WIIPROTO_REQ_DRM_K
, .size
= 2, .func
= handler_keys
},
1593 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 5, .func
= handler_drm_KA
},
1594 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 2, .func
= handler_generic_K
},
1595 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 10, .func
= handler_drm_KE
},
1596 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 2, .func
= handler_generic_K
},
1597 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 17, .func
= handler_drm_KAI
},
1598 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 2, .func
= handler_generic_K
},
1599 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 21, .func
= handler_drm_KEE
},
1600 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 2, .func
= handler_generic_K
},
1601 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 21, .func
= handler_drm_KAE
},
1602 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 2, .func
= handler_generic_K
},
1603 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 21, .func
= handler_drm_KIE
},
1604 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 2, .func
= handler_generic_K
},
1605 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 21, .func
= handler_drm_KAIE
},
1606 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 2, .func
= handler_generic_K
},
1607 { .id
= WIIPROTO_REQ_DRM_E
, .size
= 21, .func
= handler_drm_E
},
1608 { .id
= WIIPROTO_REQ_DRM_SKAI1
, .size
= 21, .func
= handler_drm_SKAI1
},
1609 { .id
= WIIPROTO_REQ_DRM_SKAI2
, .size
= 21, .func
= handler_drm_SKAI2
},
1613 static int wiimote_hid_event(struct hid_device
*hdev
, struct hid_report
*report
,
1614 u8
*raw_data
, int size
)
1616 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1617 struct wiiproto_handler
*h
;
1619 unsigned long flags
;
1624 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1626 for (i
= 0; handlers
[i
].id
; ++i
) {
1628 if (h
->id
== raw_data
[0] && h
->size
< size
) {
1629 h
->func(wdata
, &raw_data
[1]);
1634 if (!handlers
[i
].id
)
1635 hid_warn(hdev
, "Unhandled report %hhu size %d\n", raw_data
[0],
1638 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1643 static ssize_t
wiimote_ext_show(struct device
*dev
,
1644 struct device_attribute
*attr
,
1647 struct wiimote_data
*wdata
= dev_to_wii(dev
);
1649 unsigned long flags
;
1651 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1652 type
= wdata
->state
.exttype
;
1653 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1656 case WIIMOTE_EXT_NONE
:
1657 return sprintf(buf
, "none\n");
1658 case WIIMOTE_EXT_NUNCHUK
:
1659 return sprintf(buf
, "nunchuk\n");
1660 case WIIMOTE_EXT_CLASSIC_CONTROLLER
:
1661 return sprintf(buf
, "classic\n");
1662 case WIIMOTE_EXT_BALANCE_BOARD
:
1663 return sprintf(buf
, "balanceboard\n");
1664 case WIIMOTE_EXT_PRO_CONTROLLER
:
1665 return sprintf(buf
, "procontroller\n");
1666 case WIIMOTE_EXT_UNKNOWN
:
1669 return sprintf(buf
, "unknown\n");
1673 static ssize_t
wiimote_ext_store(struct device
*dev
,
1674 struct device_attribute
*attr
,
1675 const char *buf
, size_t count
)
1677 struct wiimote_data
*wdata
= dev_to_wii(dev
);
1679 if (!strcmp(buf
, "scan")) {
1680 wiimote_schedule(wdata
);
1685 return strnlen(buf
, PAGE_SIZE
);
1688 static DEVICE_ATTR(extension
, S_IRUGO
| S_IWUSR
| S_IWGRP
, wiimote_ext_show
,
1691 static ssize_t
wiimote_dev_show(struct device
*dev
,
1692 struct device_attribute
*attr
,
1695 struct wiimote_data
*wdata
= dev_to_wii(dev
);
1697 unsigned long flags
;
1699 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1700 type
= wdata
->state
.devtype
;
1701 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1704 case WIIMOTE_DEV_GENERIC
:
1705 return sprintf(buf
, "generic\n");
1706 case WIIMOTE_DEV_GEN10
:
1707 return sprintf(buf
, "gen10\n");
1708 case WIIMOTE_DEV_GEN20
:
1709 return sprintf(buf
, "gen20\n");
1710 case WIIMOTE_DEV_BALANCE_BOARD
:
1711 return sprintf(buf
, "balanceboard\n");
1712 case WIIMOTE_DEV_PRO_CONTROLLER
:
1713 return sprintf(buf
, "procontroller\n");
1714 case WIIMOTE_DEV_PENDING
:
1715 return sprintf(buf
, "pending\n");
1716 case WIIMOTE_DEV_UNKNOWN
:
1719 return sprintf(buf
, "unknown\n");
1723 static DEVICE_ATTR(devtype
, S_IRUGO
, wiimote_dev_show
, NULL
);
1725 static struct wiimote_data
*wiimote_create(struct hid_device
*hdev
)
1727 struct wiimote_data
*wdata
;
1729 wdata
= kzalloc(sizeof(*wdata
), GFP_KERNEL
);
1734 hid_set_drvdata(hdev
, wdata
);
1736 spin_lock_init(&wdata
->queue
.lock
);
1737 INIT_WORK(&wdata
->queue
.worker
, wiimote_queue_worker
);
1739 spin_lock_init(&wdata
->state
.lock
);
1740 init_completion(&wdata
->state
.ready
);
1741 mutex_init(&wdata
->state
.sync
);
1742 wdata
->state
.drm
= WIIPROTO_REQ_DRM_K
;
1743 wdata
->state
.cmd_battery
= 0xff;
1745 INIT_WORK(&wdata
->init_worker
, wiimote_init_worker
);
1746 setup_timer(&wdata
->timer
, wiimote_init_timeout
, (long)wdata
);
1751 static void wiimote_destroy(struct wiimote_data
*wdata
)
1753 unsigned long flags
;
1755 wiidebug_deinit(wdata
);
1757 /* prevent init_worker from being scheduled again */
1758 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1759 wdata
->state
.flags
|= WIIPROTO_FLAG_EXITING
;
1760 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1762 cancel_work_sync(&wdata
->init_worker
);
1763 del_timer_sync(&wdata
->timer
);
1765 device_remove_file(&wdata
->hdev
->dev
, &dev_attr_devtype
);
1766 device_remove_file(&wdata
->hdev
->dev
, &dev_attr_extension
);
1768 wiimote_mp_unload(wdata
);
1769 wiimote_ext_unload(wdata
);
1770 wiimote_modules_unload(wdata
);
1771 cancel_work_sync(&wdata
->queue
.worker
);
1772 hid_hw_close(wdata
->hdev
);
1773 hid_hw_stop(wdata
->hdev
);
1778 static int wiimote_hid_probe(struct hid_device
*hdev
,
1779 const struct hid_device_id
*id
)
1781 struct wiimote_data
*wdata
;
1784 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
1786 wdata
= wiimote_create(hdev
);
1788 hid_err(hdev
, "Can't alloc device\n");
1792 ret
= hid_parse(hdev
);
1794 hid_err(hdev
, "HID parse failed\n");
1798 ret
= hid_hw_start(hdev
, HID_CONNECT_HIDRAW
);
1800 hid_err(hdev
, "HW start failed\n");
1804 ret
= hid_hw_open(hdev
);
1806 hid_err(hdev
, "cannot start hardware I/O\n");
1810 ret
= device_create_file(&hdev
->dev
, &dev_attr_extension
);
1812 hid_err(hdev
, "cannot create sysfs attribute\n");
1816 ret
= device_create_file(&hdev
->dev
, &dev_attr_devtype
);
1818 hid_err(hdev
, "cannot create sysfs attribute\n");
1822 ret
= wiidebug_init(wdata
);
1826 hid_info(hdev
, "New device registered\n");
1828 /* schedule device detection */
1829 wiimote_schedule(wdata
);
1834 wiimote_destroy(wdata
);
1838 device_remove_file(&wdata
->hdev
->dev
, &dev_attr_extension
);
1844 input_free_device(wdata
->ir
);
1845 input_free_device(wdata
->accel
);
1850 static void wiimote_hid_remove(struct hid_device
*hdev
)
1852 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1854 hid_info(hdev
, "Device removed\n");
1855 wiimote_destroy(wdata
);
1858 static const struct hid_device_id wiimote_hid_devices
[] = {
1859 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1860 USB_DEVICE_ID_NINTENDO_WIIMOTE
) },
1861 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1862 USB_DEVICE_ID_NINTENDO_WIIMOTE2
) },
1865 MODULE_DEVICE_TABLE(hid
, wiimote_hid_devices
);
1867 static struct hid_driver wiimote_hid_driver
= {
1869 .id_table
= wiimote_hid_devices
,
1870 .probe
= wiimote_hid_probe
,
1871 .remove
= wiimote_hid_remove
,
1872 .raw_event
= wiimote_hid_event
,
1874 module_hid_driver(wiimote_hid_driver
);
1876 MODULE_LICENSE("GPL");
1877 MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
1878 MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals");