1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * HID driver for Nintendo Wii / Wii U peripherals
4 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
10 #include <linux/completion.h>
11 #include <linux/device.h>
12 #include <linux/hid.h>
13 #include <linux/input.h>
14 #include <linux/module.h>
15 #include <linux/mutex.h>
16 #include <linux/spinlock.h>
18 #include "hid-wiimote.h"
20 /* output queue handling */
22 static int wiimote_hid_send(struct hid_device
*hdev
, __u8
*buffer
,
28 if (!hdev
->ll_driver
->output_report
)
31 buf
= kmemdup(buffer
, count
, GFP_KERNEL
);
35 ret
= hid_hw_output_report(hdev
, buf
, count
);
41 static void wiimote_queue_worker(struct work_struct
*work
)
43 struct wiimote_queue
*queue
= container_of(work
, struct wiimote_queue
,
45 struct wiimote_data
*wdata
= container_of(queue
, struct wiimote_data
,
50 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
52 while (wdata
->queue
.head
!= wdata
->queue
.tail
) {
53 spin_unlock_irqrestore(&wdata
->queue
.lock
, flags
);
54 ret
= wiimote_hid_send(wdata
->hdev
,
55 wdata
->queue
.outq
[wdata
->queue
.tail
].data
,
56 wdata
->queue
.outq
[wdata
->queue
.tail
].size
);
58 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
59 wiimote_cmd_abort(wdata
);
60 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
62 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
64 wdata
->queue
.tail
= (wdata
->queue
.tail
+ 1) % WIIMOTE_BUFSIZE
;
67 spin_unlock_irqrestore(&wdata
->queue
.lock
, flags
);
70 static void wiimote_queue(struct wiimote_data
*wdata
, const __u8
*buffer
,
76 if (count
> HID_MAX_BUFFER_SIZE
) {
77 hid_warn(wdata
->hdev
, "Sending too large output report\n");
79 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
84 * Copy new request into our output queue and check whether the
85 * queue is full. If it is full, discard this request.
86 * If it is empty we need to start a new worker that will
87 * send out the buffer to the hid device.
88 * If the queue is not empty, then there must be a worker
89 * that is currently sending out our buffer and this worker
90 * will reschedule itself until the queue is empty.
93 spin_lock_irqsave(&wdata
->queue
.lock
, flags
);
95 memcpy(wdata
->queue
.outq
[wdata
->queue
.head
].data
, buffer
, count
);
96 wdata
->queue
.outq
[wdata
->queue
.head
].size
= count
;
97 newhead
= (wdata
->queue
.head
+ 1) % WIIMOTE_BUFSIZE
;
99 if (wdata
->queue
.head
== wdata
->queue
.tail
) {
100 wdata
->queue
.head
= newhead
;
101 schedule_work(&wdata
->queue
.worker
);
102 } else if (newhead
!= wdata
->queue
.tail
) {
103 wdata
->queue
.head
= newhead
;
105 hid_warn(wdata
->hdev
, "Output queue is full");
112 wiimote_cmd_abort(wdata
);
114 spin_unlock_irqrestore(&wdata
->queue
.lock
, flags
);
118 * This sets the rumble bit on the given output report if rumble is
120 * \cmd1 must point to the second byte in the output report => &cmd[1]
121 * This must be called on nearly every output report before passing it
122 * into the output queue!
124 static inline void wiiproto_keep_rumble(struct wiimote_data
*wdata
, __u8
*cmd1
)
126 if (wdata
->state
.flags
& WIIPROTO_FLAG_RUMBLE
)
130 void wiiproto_req_rumble(struct wiimote_data
*wdata
, __u8 rumble
)
135 if (rumble
== !!(wdata
->state
.flags
& WIIPROTO_FLAG_RUMBLE
))
139 wdata
->state
.flags
|= WIIPROTO_FLAG_RUMBLE
;
141 wdata
->state
.flags
&= ~WIIPROTO_FLAG_RUMBLE
;
143 cmd
[0] = WIIPROTO_REQ_RUMBLE
;
146 wiiproto_keep_rumble(wdata
, &cmd
[1]);
147 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
150 void wiiproto_req_leds(struct wiimote_data
*wdata
, int leds
)
154 leds
&= WIIPROTO_FLAGS_LEDS
;
155 if ((wdata
->state
.flags
& WIIPROTO_FLAGS_LEDS
) == leds
)
157 wdata
->state
.flags
= (wdata
->state
.flags
& ~WIIPROTO_FLAGS_LEDS
) | leds
;
159 cmd
[0] = WIIPROTO_REQ_LED
;
162 if (leds
& WIIPROTO_FLAG_LED1
)
164 if (leds
& WIIPROTO_FLAG_LED2
)
166 if (leds
& WIIPROTO_FLAG_LED3
)
168 if (leds
& WIIPROTO_FLAG_LED4
)
171 wiiproto_keep_rumble(wdata
, &cmd
[1]);
172 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
176 * Check what peripherals of the wiimote are currently
177 * active and select a proper DRM that supports all of
178 * the requested data inputs.
180 * Not all combinations are actually supported. The following
181 * combinations work only with limitations:
182 * - IR cam in extended or full mode disables any data transmission
183 * of extension controllers. There is no DRM mode that supports
184 * extension bytes plus extended/full IR.
185 * - IR cam with accelerometer and extension *_EXT8 is not supported.
186 * However, all extensions that need *_EXT8 are devices that don't
187 * support IR cameras. Hence, this shouldn't happen under normal
189 * - *_EXT16 is only supported in combination with buttons and
190 * accelerometer. No IR or similar can be active simultaneously. As
191 * above, all modules that require it are mutually exclusive with
192 * IR/etc. so this doesn't matter.
194 static __u8
select_drm(struct wiimote_data
*wdata
)
196 __u8 ir
= wdata
->state
.flags
& WIIPROTO_FLAGS_IR
;
199 ext
= (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_USED
) ||
200 (wdata
->state
.flags
& WIIPROTO_FLAG_MP_USED
);
202 /* some 3rd-party balance-boards are hard-coded to KEE, *sigh* */
203 if (wdata
->state
.devtype
== WIIMOTE_DEV_BALANCE_BOARD
) {
205 return WIIPROTO_REQ_DRM_KEE
;
207 return WIIPROTO_REQ_DRM_K
;
210 if (ir
== WIIPROTO_FLAG_IR_BASIC
) {
211 if (wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
) {
212 /* GEN10 and ealier devices bind IR formats to DRMs.
213 * Hence, we cannot use DRM_KAI here as it might be
214 * bound to IR_EXT. Use DRM_KAIE unconditionally so we
215 * work with all devices and our parsers can use the
216 * fixed formats, too. */
217 return WIIPROTO_REQ_DRM_KAIE
;
219 return WIIPROTO_REQ_DRM_KIE
;
221 } else if (ir
== WIIPROTO_FLAG_IR_EXT
) {
222 return WIIPROTO_REQ_DRM_KAI
;
223 } else if (ir
== WIIPROTO_FLAG_IR_FULL
) {
224 return WIIPROTO_REQ_DRM_SKAI1
;
226 if (wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
) {
228 return WIIPROTO_REQ_DRM_KAE
;
230 return WIIPROTO_REQ_DRM_KA
;
233 return WIIPROTO_REQ_DRM_KEE
;
235 return WIIPROTO_REQ_DRM_K
;
240 void wiiproto_req_drm(struct wiimote_data
*wdata
, __u8 drm
)
244 if (wdata
->state
.flags
& WIIPROTO_FLAG_DRM_LOCKED
)
245 drm
= wdata
->state
.drm
;
246 else if (drm
== WIIPROTO_REQ_NULL
)
247 drm
= select_drm(wdata
);
249 cmd
[0] = WIIPROTO_REQ_DRM
;
253 wdata
->state
.drm
= drm
;
254 wiiproto_keep_rumble(wdata
, &cmd
[1]);
255 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
258 void wiiproto_req_status(struct wiimote_data
*wdata
)
262 cmd
[0] = WIIPROTO_REQ_SREQ
;
265 wiiproto_keep_rumble(wdata
, &cmd
[1]);
266 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
269 void wiiproto_req_accel(struct wiimote_data
*wdata
, __u8 accel
)
272 if (accel
== !!(wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
))
276 wdata
->state
.flags
|= WIIPROTO_FLAG_ACCEL
;
278 wdata
->state
.flags
&= ~WIIPROTO_FLAG_ACCEL
;
280 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
283 void wiiproto_req_ir1(struct wiimote_data
*wdata
, __u8 flags
)
287 cmd
[0] = WIIPROTO_REQ_IR1
;
290 wiiproto_keep_rumble(wdata
, &cmd
[1]);
291 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
294 void wiiproto_req_ir2(struct wiimote_data
*wdata
, __u8 flags
)
298 cmd
[0] = WIIPROTO_REQ_IR2
;
301 wiiproto_keep_rumble(wdata
, &cmd
[1]);
302 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
305 #define wiiproto_req_wreg(wdata, os, buf, sz) \
306 wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
308 #define wiiproto_req_weeprom(wdata, os, buf, sz) \
309 wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
311 static void wiiproto_req_wmem(struct wiimote_data
*wdata
, bool eeprom
,
312 __u32 offset
, const __u8
*buf
, __u8 size
)
316 if (size
> 16 || size
== 0) {
317 hid_warn(wdata
->hdev
, "Invalid length %d wmem request\n", size
);
321 memset(cmd
, 0, sizeof(cmd
));
322 cmd
[0] = WIIPROTO_REQ_WMEM
;
323 cmd
[2] = (offset
>> 16) & 0xff;
324 cmd
[3] = (offset
>> 8) & 0xff;
325 cmd
[4] = offset
& 0xff;
327 memcpy(&cmd
[6], buf
, size
);
332 wiiproto_keep_rumble(wdata
, &cmd
[1]);
333 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
336 void wiiproto_req_rmem(struct wiimote_data
*wdata
, bool eeprom
, __u32 offset
,
342 hid_warn(wdata
->hdev
, "Invalid length %d rmem request\n", size
);
346 cmd
[0] = WIIPROTO_REQ_RMEM
;
348 cmd
[2] = (offset
>> 16) & 0xff;
349 cmd
[3] = (offset
>> 8) & 0xff;
350 cmd
[4] = offset
& 0xff;
351 cmd
[5] = (size
>> 8) & 0xff;
352 cmd
[6] = size
& 0xff;
357 wiiproto_keep_rumble(wdata
, &cmd
[1]);
358 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
361 /* requries the cmd-mutex to be held */
362 int wiimote_cmd_write(struct wiimote_data
*wdata
, __u32 offset
,
363 const __u8
*wmem
, __u8 size
)
368 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
369 wiimote_cmd_set(wdata
, WIIPROTO_REQ_WMEM
, 0);
370 wiiproto_req_wreg(wdata
, offset
, wmem
, size
);
371 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
373 ret
= wiimote_cmd_wait(wdata
);
374 if (!ret
&& wdata
->state
.cmd_err
)
380 /* requries the cmd-mutex to be held */
381 ssize_t
wiimote_cmd_read(struct wiimote_data
*wdata
, __u32 offset
, __u8
*rmem
,
387 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
388 wdata
->state
.cmd_read_size
= size
;
389 wdata
->state
.cmd_read_buf
= rmem
;
390 wiimote_cmd_set(wdata
, WIIPROTO_REQ_RMEM
, offset
& 0xffff);
391 wiiproto_req_rreg(wdata
, offset
, size
);
392 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
394 ret
= wiimote_cmd_wait(wdata
);
396 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
397 wdata
->state
.cmd_read_buf
= NULL
;
398 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
401 if (wdata
->state
.cmd_read_size
== 0)
404 ret
= wdata
->state
.cmd_read_size
;
410 /* requires the cmd-mutex to be held */
411 static int wiimote_cmd_init_ext(struct wiimote_data
*wdata
)
416 /* initialize extension */
418 ret
= wiimote_cmd_write(wdata
, 0xa400f0, &wmem
, sizeof(wmem
));
422 /* disable default encryption */
424 ret
= wiimote_cmd_write(wdata
, 0xa400fb, &wmem
, sizeof(wmem
));
431 /* requires the cmd-mutex to be held */
432 static __u8
wiimote_cmd_read_ext(struct wiimote_data
*wdata
, __u8
*rmem
)
436 /* read extension ID */
437 ret
= wiimote_cmd_read(wdata
, 0xa400fa, rmem
, 6);
439 return WIIMOTE_EXT_NONE
;
441 hid_dbg(wdata
->hdev
, "extension ID: %6phC\n", rmem
);
443 if (rmem
[0] == 0xff && rmem
[1] == 0xff && rmem
[2] == 0xff &&
444 rmem
[3] == 0xff && rmem
[4] == 0xff && rmem
[5] == 0xff)
445 return WIIMOTE_EXT_NONE
;
447 if (rmem
[4] == 0x00 && rmem
[5] == 0x00)
448 return WIIMOTE_EXT_NUNCHUK
;
449 if (rmem
[4] == 0x01 && rmem
[5] == 0x01)
450 return WIIMOTE_EXT_CLASSIC_CONTROLLER
;
451 if (rmem
[4] == 0x04 && rmem
[5] == 0x02)
452 return WIIMOTE_EXT_BALANCE_BOARD
;
453 if (rmem
[4] == 0x01 && rmem
[5] == 0x20)
454 return WIIMOTE_EXT_PRO_CONTROLLER
;
455 if (rmem
[0] == 0x01 && rmem
[1] == 0x00 &&
456 rmem
[4] == 0x01 && rmem
[5] == 0x03)
457 return WIIMOTE_EXT_DRUMS
;
458 if (rmem
[0] == 0x00 && rmem
[1] == 0x00 &&
459 rmem
[4] == 0x01 && rmem
[5] == 0x03)
460 return WIIMOTE_EXT_GUITAR
;
462 return WIIMOTE_EXT_UNKNOWN
;
465 /* requires the cmd-mutex to be held */
466 static int wiimote_cmd_init_mp(struct wiimote_data
*wdata
)
473 ret
= wiimote_cmd_write(wdata
, 0xa600f0, &wmem
, sizeof(wmem
));
477 /* disable default encryption */
479 ret
= wiimote_cmd_write(wdata
, 0xa600fb, &wmem
, sizeof(wmem
));
486 /* requires the cmd-mutex to be held */
487 static bool wiimote_cmd_map_mp(struct wiimote_data
*wdata
, __u8 exttype
)
491 /* map MP with correct pass-through mode */
493 case WIIMOTE_EXT_CLASSIC_CONTROLLER
:
494 case WIIMOTE_EXT_DRUMS
:
495 case WIIMOTE_EXT_GUITAR
:
498 case WIIMOTE_EXT_NUNCHUK
:
506 return wiimote_cmd_write(wdata
, 0xa600fe, &wmem
, sizeof(wmem
));
509 /* requires the cmd-mutex to be held */
510 static bool wiimote_cmd_read_mp(struct wiimote_data
*wdata
, __u8
*rmem
)
514 /* read motion plus ID */
515 ret
= wiimote_cmd_read(wdata
, 0xa600fa, rmem
, 6);
519 hid_dbg(wdata
->hdev
, "motion plus ID: %6phC\n", rmem
);
524 hid_info(wdata
->hdev
, "unknown motion plus ID: %6phC\n", rmem
);
529 /* requires the cmd-mutex to be held */
530 static __u8
wiimote_cmd_read_mp_mapped(struct wiimote_data
*wdata
)
535 /* read motion plus ID */
536 ret
= wiimote_cmd_read(wdata
, 0xa400fa, rmem
, 6);
538 return WIIMOTE_MP_NONE
;
540 hid_dbg(wdata
->hdev
, "mapped motion plus ID: %6phC\n", rmem
);
542 if (rmem
[0] == 0xff && rmem
[1] == 0xff && rmem
[2] == 0xff &&
543 rmem
[3] == 0xff && rmem
[4] == 0xff && rmem
[5] == 0xff)
544 return WIIMOTE_MP_NONE
;
546 if (rmem
[4] == 0x04 && rmem
[5] == 0x05)
547 return WIIMOTE_MP_SINGLE
;
548 else if (rmem
[4] == 0x05 && rmem
[5] == 0x05)
549 return WIIMOTE_MP_PASSTHROUGH_NUNCHUK
;
550 else if (rmem
[4] == 0x07 && rmem
[5] == 0x05)
551 return WIIMOTE_MP_PASSTHROUGH_CLASSIC
;
553 return WIIMOTE_MP_UNKNOWN
;
556 /* device module handling */
558 static const __u8
* const wiimote_devtype_mods
[WIIMOTE_DEV_NUM
] = {
559 [WIIMOTE_DEV_PENDING
] = (const __u8
[]){
562 [WIIMOTE_DEV_UNKNOWN
] = (const __u8
[]){
566 [WIIMOTE_DEV_GENERIC
] = (const __u8
[]){
578 [WIIMOTE_DEV_GEN10
] = (const __u8
[]){
590 [WIIMOTE_DEV_GEN20
] = (const __u8
[]){
603 [WIIMOTE_DEV_BALANCE_BOARD
] = (const __u8
[]) {
609 [WIIMOTE_DEV_PRO_CONTROLLER
] = (const __u8
[]) {
620 static void wiimote_modules_load(struct wiimote_data
*wdata
,
621 unsigned int devtype
)
623 bool need_input
= false;
624 const __u8
*mods
, *iter
;
625 const struct wiimod_ops
*ops
;
628 mods
= wiimote_devtype_mods
[devtype
];
630 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
631 if (wiimod_table
[*iter
]->flags
& WIIMOD_FLAG_INPUT
) {
638 wdata
->input
= input_allocate_device();
642 input_set_drvdata(wdata
->input
, wdata
);
643 wdata
->input
->dev
.parent
= &wdata
->hdev
->dev
;
644 wdata
->input
->id
.bustype
= wdata
->hdev
->bus
;
645 wdata
->input
->id
.vendor
= wdata
->hdev
->vendor
;
646 wdata
->input
->id
.product
= wdata
->hdev
->product
;
647 wdata
->input
->id
.version
= wdata
->hdev
->version
;
648 wdata
->input
->name
= WIIMOTE_NAME
;
651 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
652 ops
= wiimod_table
[*iter
];
656 ret
= ops
->probe(ops
, wdata
);
662 ret
= input_register_device(wdata
->input
);
667 spin_lock_irq(&wdata
->state
.lock
);
668 wdata
->state
.devtype
= devtype
;
669 spin_unlock_irq(&wdata
->state
.lock
);
673 for ( ; iter
-- != mods
; ) {
674 ops
= wiimod_table
[*iter
];
676 ops
->remove(ops
, wdata
);
680 input_free_device(wdata
->input
);
685 static void wiimote_modules_unload(struct wiimote_data
*wdata
)
687 const __u8
*mods
, *iter
;
688 const struct wiimod_ops
*ops
;
691 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
693 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
694 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
695 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
697 /* find end of list */
698 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
)
702 input_get_device(wdata
->input
);
703 input_unregister_device(wdata
->input
);
706 for ( ; iter
-- != mods
; ) {
707 ops
= wiimod_table
[*iter
];
709 ops
->remove(ops
, wdata
);
713 input_put_device(wdata
->input
);
718 /* device extension handling */
720 static void wiimote_ext_load(struct wiimote_data
*wdata
, unsigned int ext
)
723 const struct wiimod_ops
*ops
;
726 ops
= wiimod_ext_table
[ext
];
729 ret
= ops
->probe(ops
, wdata
);
731 ext
= WIIMOTE_EXT_UNKNOWN
;
734 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
735 wdata
->state
.exttype
= ext
;
736 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
739 static void wiimote_ext_unload(struct wiimote_data
*wdata
)
742 const struct wiimod_ops
*ops
;
744 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
746 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
747 wdata
->state
.exttype
= WIIMOTE_EXT_UNKNOWN
;
748 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_USED
;
749 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
752 ops
->remove(ops
, wdata
);
755 static void wiimote_mp_load(struct wiimote_data
*wdata
)
758 const struct wiimod_ops
*ops
;
764 ret
= ops
->probe(ops
, wdata
);
769 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
770 wdata
->state
.mp
= mode
;
771 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
774 static void wiimote_mp_unload(struct wiimote_data
*wdata
)
777 const struct wiimod_ops
*ops
;
779 if (wdata
->state
.mp
< 2)
784 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
786 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_USED
;
787 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
790 ops
->remove(ops
, wdata
);
793 /* device (re-)initialization and detection */
795 static const char *wiimote_devtype_names
[WIIMOTE_DEV_NUM
] = {
796 [WIIMOTE_DEV_PENDING
] = "Pending",
797 [WIIMOTE_DEV_UNKNOWN
] = "Unknown",
798 [WIIMOTE_DEV_GENERIC
] = "Generic",
799 [WIIMOTE_DEV_GEN10
] = "Nintendo Wii Remote (Gen 1)",
800 [WIIMOTE_DEV_GEN20
] = "Nintendo Wii Remote Plus (Gen 2)",
801 [WIIMOTE_DEV_BALANCE_BOARD
] = "Nintendo Wii Balance Board",
802 [WIIMOTE_DEV_PRO_CONTROLLER
] = "Nintendo Wii U Pro Controller",
805 /* Try to guess the device type based on all collected information. We
806 * first try to detect by static extension types, then VID/PID and the
807 * device name. If we cannot detect the device, we use
808 * WIIMOTE_DEV_GENERIC so all modules will get probed on the device. */
809 static void wiimote_init_set_type(struct wiimote_data
*wdata
,
812 __u8 devtype
= WIIMOTE_DEV_GENERIC
;
813 __u16 vendor
, product
;
816 vendor
= wdata
->hdev
->vendor
;
817 product
= wdata
->hdev
->product
;
818 name
= wdata
->hdev
->name
;
820 if (exttype
== WIIMOTE_EXT_BALANCE_BOARD
) {
821 devtype
= WIIMOTE_DEV_BALANCE_BOARD
;
823 } else if (exttype
== WIIMOTE_EXT_PRO_CONTROLLER
) {
824 devtype
= WIIMOTE_DEV_PRO_CONTROLLER
;
828 if (!strcmp(name
, "Nintendo RVL-CNT-01")) {
829 devtype
= WIIMOTE_DEV_GEN10
;
831 } else if (!strcmp(name
, "Nintendo RVL-CNT-01-TR")) {
832 devtype
= WIIMOTE_DEV_GEN20
;
834 } else if (!strcmp(name
, "Nintendo RVL-WBC-01")) {
835 devtype
= WIIMOTE_DEV_BALANCE_BOARD
;
837 } else if (!strcmp(name
, "Nintendo RVL-CNT-01-UC")) {
838 devtype
= WIIMOTE_DEV_PRO_CONTROLLER
;
842 if (vendor
== USB_VENDOR_ID_NINTENDO
) {
843 if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE
) {
844 devtype
= WIIMOTE_DEV_GEN10
;
846 } else if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE2
) {
847 devtype
= WIIMOTE_DEV_GEN20
;
853 if (devtype
== WIIMOTE_DEV_GENERIC
)
854 hid_info(wdata
->hdev
, "cannot detect device; NAME: %s VID: %04x PID: %04x EXT: %04x\n",
855 name
, vendor
, product
, exttype
);
857 hid_info(wdata
->hdev
, "detected device: %s\n",
858 wiimote_devtype_names
[devtype
]);
860 wiimote_modules_load(wdata
, devtype
);
863 static void wiimote_init_detect(struct wiimote_data
*wdata
)
865 __u8 exttype
= WIIMOTE_EXT_NONE
, extdata
[6];
869 wiimote_cmd_acquire_noint(wdata
);
871 spin_lock_irq(&wdata
->state
.lock
);
872 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
873 wiimote_cmd_set(wdata
, WIIPROTO_REQ_SREQ
, 0);
874 wiiproto_req_status(wdata
);
875 spin_unlock_irq(&wdata
->state
.lock
);
877 ret
= wiimote_cmd_wait_noint(wdata
);
881 spin_lock_irq(&wdata
->state
.lock
);
882 ext
= wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
;
883 spin_unlock_irq(&wdata
->state
.lock
);
888 wiimote_cmd_init_ext(wdata
);
889 exttype
= wiimote_cmd_read_ext(wdata
, extdata
);
892 wiimote_cmd_release(wdata
);
893 wiimote_init_set_type(wdata
, exttype
);
895 /* schedule MP timer */
896 spin_lock_irq(&wdata
->state
.lock
);
897 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_BUILTIN_MP
) &&
898 !(wdata
->state
.flags
& WIIPROTO_FLAG_NO_MP
))
899 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
900 spin_unlock_irq(&wdata
->state
.lock
);
904 * MP hotplug events are not generated by the wiimote. Therefore, we need
905 * polling to detect it. We use a 4s interval for polling MP registers. This
906 * seems reasonable considering applications can trigger it manually via
909 static void wiimote_init_poll_mp(struct wiimote_data
*wdata
)
914 wiimote_cmd_acquire_noint(wdata
);
915 wiimote_cmd_init_mp(wdata
);
916 mp
= wiimote_cmd_read_mp(wdata
, mpdata
);
917 wiimote_cmd_release(wdata
);
919 /* load/unload MP module if it changed */
921 if (!wdata
->state
.mp
) {
922 hid_info(wdata
->hdev
, "detected extension: Nintendo Wii Motion Plus\n");
923 wiimote_mp_load(wdata
);
925 } else if (wdata
->state
.mp
) {
926 wiimote_mp_unload(wdata
);
929 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
933 * Check whether the wiimote is in the expected state. The extension registers
934 * may change during hotplug and initialization so we might get hotplug events
935 * that we caused by remapping some memory.
936 * We use some heuristics here to check known states. If the wiimote is in the
937 * expected state, we can ignore the hotplug event.
939 * Returns "true" if the device is in expected state, "false" if we should
940 * redo hotplug handling and extension initialization.
942 static bool wiimote_init_check(struct wiimote_data
*wdata
)
948 spin_lock_irq(&wdata
->state
.lock
);
949 flags
= wdata
->state
.flags
;
950 spin_unlock_irq(&wdata
->state
.lock
);
952 wiimote_cmd_acquire_noint(wdata
);
954 /* If MP is used and active, but the extension is not, we expect:
955 * read_mp_mapped() == WIIMOTE_MP_SINGLE
956 * state.flags == !EXT_ACTIVE && !MP_PLUGGED && MP_ACTIVE
957 * We do not check EXT_PLUGGED because it might change during
958 * initialization of MP without extensions.
959 * - If MP is unplugged/replugged, read_mp_mapped() fails
960 * - If EXT is plugged, MP_PLUGGED will get set */
961 if (wdata
->state
.exttype
== WIIMOTE_EXT_NONE
&&
962 wdata
->state
.mp
> 0 && (flags
& WIIPROTO_FLAG_MP_USED
)) {
963 type
= wiimote_cmd_read_mp_mapped(wdata
);
964 ret
= type
== WIIMOTE_MP_SINGLE
;
966 spin_lock_irq(&wdata
->state
.lock
);
967 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
968 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
);
969 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
970 spin_unlock_irq(&wdata
->state
.lock
);
973 hid_dbg(wdata
->hdev
, "state left: !EXT && MP\n");
975 /* while MP is mapped, we get EXT_PLUGGED events */
981 /* If MP is unused, but the extension port is used, we expect:
982 * read_ext == state.exttype
983 * state.flags == !MP_ACTIVE && EXT_ACTIVE
984 * - If MP is plugged/unplugged, our timer detects it
985 * - If EXT is unplugged/replugged, EXT_ACTIVE will become unset */
986 if (!(flags
& WIIPROTO_FLAG_MP_USED
) &&
987 wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
) {
988 type
= wiimote_cmd_read_ext(wdata
, data
);
989 ret
= type
== wdata
->state
.exttype
;
991 spin_lock_irq(&wdata
->state
.lock
);
992 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
993 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
994 spin_unlock_irq(&wdata
->state
.lock
);
997 hid_dbg(wdata
->hdev
, "state left: EXT && !MP\n");
999 /* poll MP for hotplug events */
1005 /* If neither MP nor an extension are used, we expect:
1006 * read_ext() == WIIMOTE_EXT_NONE
1007 * state.flags == !MP_ACTIVE && !EXT_ACTIVE && !EXT_PLUGGED
1008 * No need to perform any action in this case as everything is
1010 * - If MP is plugged/unplugged, our timer detects it
1011 * - If EXT is plugged, EXT_PLUGGED will be set */
1012 if (!(flags
& WIIPROTO_FLAG_MP_USED
) &&
1013 wdata
->state
.exttype
== WIIMOTE_EXT_NONE
) {
1014 type
= wiimote_cmd_read_ext(wdata
, data
);
1015 ret
= type
== wdata
->state
.exttype
;
1017 spin_lock_irq(&wdata
->state
.lock
);
1018 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
1019 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
1020 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
);
1021 spin_unlock_irq(&wdata
->state
.lock
);
1024 hid_dbg(wdata
->hdev
, "state left: !EXT && !MP\n");
1026 /* poll MP for hotplug events */
1032 /* The trickiest part is if both EXT and MP are active. We cannot read
1033 * the EXT ID, anymore, because MP is mapped over it. However, we use
1034 * a handy trick here:
1035 * - EXT_ACTIVE is unset whenever !MP_PLUGGED is sent
1036 * MP_PLUGGED might be re-sent again before we are scheduled, but
1037 * EXT_ACTIVE will stay unset.
1038 * So it is enough to check for mp_mapped() and MP_ACTIVE and
1039 * EXT_ACTIVE. EXT_PLUGGED is a sanity check. */
1040 if (wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
&&
1041 wdata
->state
.mp
> 0 && (flags
& WIIPROTO_FLAG_MP_USED
)) {
1042 type
= wiimote_cmd_read_mp_mapped(wdata
);
1043 ret
= type
!= WIIMOTE_MP_NONE
;
1044 ret
= ret
&& type
!= WIIMOTE_MP_UNKNOWN
;
1045 ret
= ret
&& type
!= WIIMOTE_MP_SINGLE
;
1047 spin_lock_irq(&wdata
->state
.lock
);
1048 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
);
1049 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
1050 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
1051 spin_unlock_irq(&wdata
->state
.lock
);
1054 hid_dbg(wdata
->hdev
, "state left: EXT && MP\n");
1056 /* while MP is mapped, we get EXT_PLUGGED events */
1066 wiimote_cmd_release(wdata
);
1068 /* only poll for MP if requested and if state didn't change */
1069 if (ret
&& poll_mp
&& !(flags
& WIIPROTO_FLAG_BUILTIN_MP
) &&
1070 !(flags
& WIIPROTO_FLAG_NO_MP
))
1071 wiimote_init_poll_mp(wdata
);
1076 static const char *wiimote_exttype_names
[WIIMOTE_EXT_NUM
] = {
1077 [WIIMOTE_EXT_NONE
] = "None",
1078 [WIIMOTE_EXT_UNKNOWN
] = "Unknown",
1079 [WIIMOTE_EXT_NUNCHUK
] = "Nintendo Wii Nunchuk",
1080 [WIIMOTE_EXT_CLASSIC_CONTROLLER
] = "Nintendo Wii Classic Controller",
1081 [WIIMOTE_EXT_BALANCE_BOARD
] = "Nintendo Wii Balance Board",
1082 [WIIMOTE_EXT_PRO_CONTROLLER
] = "Nintendo Wii U Pro Controller",
1083 [WIIMOTE_EXT_DRUMS
] = "Nintendo Wii Drums",
1084 [WIIMOTE_EXT_GUITAR
] = "Nintendo Wii Guitar",
1088 * Handle hotplug events
1089 * If we receive an hotplug event and the device-check failed, we deinitialize
1090 * the extension ports, re-read all extension IDs and set the device into
1091 * the desired state. This involves mapping MP into the main extension
1092 * registers, setting up extension passthrough modes and initializing the
1093 * requested extensions.
1095 static void wiimote_init_hotplug(struct wiimote_data
*wdata
)
1097 __u8 exttype
, extdata
[6], mpdata
[6];
1101 hid_dbg(wdata
->hdev
, "detect extensions..\n");
1103 wiimote_cmd_acquire_noint(wdata
);
1105 spin_lock_irq(&wdata
->state
.lock
);
1107 /* get state snapshot that we will then work on */
1108 flags
= wdata
->state
.flags
;
1110 /* disable event forwarding temporarily */
1111 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1112 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_ACTIVE
;
1114 spin_unlock_irq(&wdata
->state
.lock
);
1116 /* init extension and MP (deactivates current extension or MP) */
1117 wiimote_cmd_init_ext(wdata
);
1118 if (flags
& WIIPROTO_FLAG_NO_MP
) {
1121 wiimote_cmd_init_mp(wdata
);
1122 mp
= wiimote_cmd_read_mp(wdata
, mpdata
);
1124 exttype
= wiimote_cmd_read_ext(wdata
, extdata
);
1126 wiimote_cmd_release(wdata
);
1128 /* load/unload extension module if it changed */
1129 if (exttype
!= wdata
->state
.exttype
) {
1130 /* unload previous extension */
1131 wiimote_ext_unload(wdata
);
1133 if (exttype
== WIIMOTE_EXT_UNKNOWN
) {
1134 hid_info(wdata
->hdev
, "cannot detect extension; %6phC\n",
1136 } else if (exttype
== WIIMOTE_EXT_NONE
) {
1137 spin_lock_irq(&wdata
->state
.lock
);
1138 wdata
->state
.exttype
= WIIMOTE_EXT_NONE
;
1139 spin_unlock_irq(&wdata
->state
.lock
);
1141 hid_info(wdata
->hdev
, "detected extension: %s\n",
1142 wiimote_exttype_names
[exttype
]);
1143 /* try loading new extension */
1144 wiimote_ext_load(wdata
, exttype
);
1148 /* load/unload MP module if it changed */
1150 if (!wdata
->state
.mp
) {
1151 hid_info(wdata
->hdev
, "detected extension: Nintendo Wii Motion Plus\n");
1152 wiimote_mp_load(wdata
);
1154 } else if (wdata
->state
.mp
) {
1155 wiimote_mp_unload(wdata
);
1158 /* if MP is not used, do not map or activate it */
1159 if (!(flags
& WIIPROTO_FLAG_MP_USED
))
1162 /* map MP into main extension registers if used */
1164 wiimote_cmd_acquire_noint(wdata
);
1165 wiimote_cmd_map_mp(wdata
, exttype
);
1166 wiimote_cmd_release(wdata
);
1168 /* delete MP hotplug timer */
1169 del_timer_sync(&wdata
->timer
);
1171 /* reschedule MP hotplug timer */
1172 if (!(flags
& WIIPROTO_FLAG_BUILTIN_MP
) &&
1173 !(flags
& WIIPROTO_FLAG_NO_MP
))
1174 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
1177 spin_lock_irq(&wdata
->state
.lock
);
1179 /* enable data forwarding again and set expected hotplug state */
1181 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_ACTIVE
;
1182 if (wdata
->state
.exttype
== WIIMOTE_EXT_NONE
) {
1183 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1184 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1186 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1187 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_PLUGGED
;
1188 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_ACTIVE
;
1190 } else if (wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
) {
1191 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_ACTIVE
;
1194 /* request status report for hotplug state updates */
1195 wiiproto_req_status(wdata
);
1197 spin_unlock_irq(&wdata
->state
.lock
);
1199 hid_dbg(wdata
->hdev
, "detected extensions: MP: %d EXT: %d\n",
1200 wdata
->state
.mp
, wdata
->state
.exttype
);
1203 static void wiimote_init_worker(struct work_struct
*work
)
1205 struct wiimote_data
*wdata
= container_of(work
, struct wiimote_data
,
1207 bool changed
= false;
1209 if (wdata
->state
.devtype
== WIIMOTE_DEV_PENDING
) {
1210 wiimote_init_detect(wdata
);
1214 if (changed
|| !wiimote_init_check(wdata
))
1215 wiimote_init_hotplug(wdata
);
1218 kobject_uevent(&wdata
->hdev
->dev
.kobj
, KOBJ_CHANGE
);
1221 void __wiimote_schedule(struct wiimote_data
*wdata
)
1223 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXITING
))
1224 schedule_work(&wdata
->init_worker
);
1227 static void wiimote_schedule(struct wiimote_data
*wdata
)
1229 unsigned long flags
;
1231 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1232 __wiimote_schedule(wdata
);
1233 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1236 static void wiimote_init_timeout(struct timer_list
*t
)
1238 struct wiimote_data
*wdata
= from_timer(wdata
, t
, timer
);
1240 wiimote_schedule(wdata
);
1243 /* protocol handlers */
1245 static void handler_keys(struct wiimote_data
*wdata
, const __u8
*payload
)
1247 const __u8
*iter
, *mods
;
1248 const struct wiimod_ops
*ops
;
1250 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1252 ops
->in_keys(wdata
, payload
);
1256 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1257 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1258 ops
= wiimod_table
[*iter
];
1260 ops
->in_keys(wdata
, payload
);
1266 static void handler_accel(struct wiimote_data
*wdata
, const __u8
*payload
)
1268 const __u8
*iter
, *mods
;
1269 const struct wiimod_ops
*ops
;
1271 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1272 if (ops
->in_accel
) {
1273 ops
->in_accel(wdata
, payload
);
1277 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1278 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1279 ops
= wiimod_table
[*iter
];
1280 if (ops
->in_accel
) {
1281 ops
->in_accel(wdata
, payload
);
1287 static bool valid_ext_handler(const struct wiimod_ops
*ops
, size_t len
)
1291 if ((ops
->flags
& WIIMOD_FLAG_EXT8
) && len
< 8)
1293 if ((ops
->flags
& WIIMOD_FLAG_EXT16
) && len
< 16)
1299 static void handler_ext(struct wiimote_data
*wdata
, const __u8
*payload
,
1302 static const __u8 invalid
[21] = { 0xff, 0xff, 0xff, 0xff,
1303 0xff, 0xff, 0xff, 0xff,
1304 0xff, 0xff, 0xff, 0xff,
1305 0xff, 0xff, 0xff, 0xff,
1306 0xff, 0xff, 0xff, 0xff,
1308 const __u8
*iter
, *mods
;
1309 const struct wiimod_ops
*ops
;
1314 if (len
< 6 || !memcmp(payload
, invalid
, len
))
1317 /* if MP is active, track MP slot hotplugging */
1318 if (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
) {
1319 /* this bit is set for invalid events (eg. during hotplug) */
1320 if (payload
[5] & 0x01)
1323 if (payload
[4] & 0x01) {
1324 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
)) {
1325 hid_dbg(wdata
->hdev
, "MP hotplug: 1\n");
1326 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_PLUGGED
;
1327 __wiimote_schedule(wdata
);
1330 if (wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
) {
1331 hid_dbg(wdata
->hdev
, "MP hotplug: 0\n");
1332 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1333 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1334 __wiimote_schedule(wdata
);
1338 /* detect MP data that is sent interleaved with EXT data */
1339 is_mp
= payload
[5] & 0x02;
1344 /* ignore EXT events if no extension is active */
1345 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
) && !is_mp
)
1348 /* try forwarding to extension handler, first */
1349 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1350 if (is_mp
&& ops
->in_mp
) {
1351 ops
->in_mp(wdata
, payload
);
1353 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1354 ops
->in_ext(wdata
, payload
);
1358 /* try forwarding to MP handler */
1360 if (is_mp
&& ops
->in_mp
) {
1361 ops
->in_mp(wdata
, payload
);
1363 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1364 ops
->in_ext(wdata
, payload
);
1368 /* try forwarding to loaded modules */
1369 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1370 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1371 ops
= wiimod_table
[*iter
];
1372 if (is_mp
&& ops
->in_mp
) {
1373 ops
->in_mp(wdata
, payload
);
1375 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1376 ops
->in_ext(wdata
, payload
);
1382 #define ir_to_input0(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 0)
1383 #define ir_to_input1(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 1)
1384 #define ir_to_input2(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 2)
1385 #define ir_to_input3(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 3)
1387 static void handler_ir(struct wiimote_data
*wdata
, const __u8
*payload
,
1388 bool packed
, unsigned int id
)
1390 const __u8
*iter
, *mods
;
1391 const struct wiimod_ops
*ops
;
1393 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1395 ops
->in_ir(wdata
, payload
, packed
, id
);
1399 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1400 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1401 ops
= wiimod_table
[*iter
];
1403 ops
->in_ir(wdata
, payload
, packed
, id
);
1409 /* reduced status report with "BB BB" key data only */
1410 static void handler_status_K(struct wiimote_data
*wdata
,
1411 const __u8
*payload
)
1413 handler_keys(wdata
, payload
);
1415 /* on status reports the drm is reset so we need to resend the drm */
1416 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
1419 /* extended status report with "BB BB LF 00 00 VV" data */
1420 static void handler_status(struct wiimote_data
*wdata
, const __u8
*payload
)
1422 handler_status_K(wdata
, payload
);
1424 /* update extension status */
1425 if (payload
[2] & 0x02) {
1426 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
)) {
1427 hid_dbg(wdata
->hdev
, "EXT hotplug: 1\n");
1428 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_PLUGGED
;
1429 __wiimote_schedule(wdata
);
1432 if (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
) {
1433 hid_dbg(wdata
->hdev
, "EXT hotplug: 0\n");
1434 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1435 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1436 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1437 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_ACTIVE
;
1438 __wiimote_schedule(wdata
);
1442 wdata
->state
.cmd_battery
= payload
[5];
1443 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_SREQ
, 0))
1444 wiimote_cmd_complete(wdata
);
1447 /* reduced generic report with "BB BB" key data only */
1448 static void handler_generic_K(struct wiimote_data
*wdata
, const __u8
*payload
)
1450 handler_keys(wdata
, payload
);
1453 static void handler_data(struct wiimote_data
*wdata
, const __u8
*payload
)
1455 __u16 offset
= payload
[3] << 8 | payload
[4];
1456 __u8 size
= (payload
[2] >> 4) + 1;
1457 __u8 err
= payload
[2] & 0x0f;
1459 handler_keys(wdata
, payload
);
1461 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_RMEM
, offset
)) {
1464 else if (size
> wdata
->state
.cmd_read_size
)
1465 size
= wdata
->state
.cmd_read_size
;
1467 wdata
->state
.cmd_read_size
= size
;
1468 if (wdata
->state
.cmd_read_buf
)
1469 memcpy(wdata
->state
.cmd_read_buf
, &payload
[5], size
);
1470 wiimote_cmd_complete(wdata
);
1474 static void handler_return(struct wiimote_data
*wdata
, const __u8
*payload
)
1476 __u8 err
= payload
[3];
1477 __u8 cmd
= payload
[2];
1479 handler_keys(wdata
, payload
);
1481 if (wiimote_cmd_pending(wdata
, cmd
, 0)) {
1482 wdata
->state
.cmd_err
= err
;
1483 wiimote_cmd_complete(wdata
);
1485 hid_warn(wdata
->hdev
, "Remote error %u on req %u\n", err
,
1490 static void handler_drm_KA(struct wiimote_data
*wdata
, const __u8
*payload
)
1492 handler_keys(wdata
, payload
);
1493 handler_accel(wdata
, payload
);
1496 static void handler_drm_KE(struct wiimote_data
*wdata
, const __u8
*payload
)
1498 handler_keys(wdata
, payload
);
1499 handler_ext(wdata
, &payload
[2], 8);
1502 static void handler_drm_KAI(struct wiimote_data
*wdata
, const __u8
*payload
)
1504 handler_keys(wdata
, payload
);
1505 handler_accel(wdata
, payload
);
1506 ir_to_input0(wdata
, &payload
[5], false);
1507 ir_to_input1(wdata
, &payload
[8], false);
1508 ir_to_input2(wdata
, &payload
[11], false);
1509 ir_to_input3(wdata
, &payload
[14], false);
1512 static void handler_drm_KEE(struct wiimote_data
*wdata
, const __u8
*payload
)
1514 handler_keys(wdata
, payload
);
1515 handler_ext(wdata
, &payload
[2], 19);
1518 static void handler_drm_KIE(struct wiimote_data
*wdata
, const __u8
*payload
)
1520 handler_keys(wdata
, payload
);
1521 ir_to_input0(wdata
, &payload
[2], false);
1522 ir_to_input1(wdata
, &payload
[4], true);
1523 ir_to_input2(wdata
, &payload
[7], false);
1524 ir_to_input3(wdata
, &payload
[9], true);
1525 handler_ext(wdata
, &payload
[12], 9);
1528 static void handler_drm_KAE(struct wiimote_data
*wdata
, const __u8
*payload
)
1530 handler_keys(wdata
, payload
);
1531 handler_accel(wdata
, payload
);
1532 handler_ext(wdata
, &payload
[5], 16);
1535 static void handler_drm_KAIE(struct wiimote_data
*wdata
, const __u8
*payload
)
1537 handler_keys(wdata
, payload
);
1538 handler_accel(wdata
, payload
);
1539 ir_to_input0(wdata
, &payload
[5], false);
1540 ir_to_input1(wdata
, &payload
[7], true);
1541 ir_to_input2(wdata
, &payload
[10], false);
1542 ir_to_input3(wdata
, &payload
[12], true);
1543 handler_ext(wdata
, &payload
[15], 6);
1546 static void handler_drm_E(struct wiimote_data
*wdata
, const __u8
*payload
)
1548 handler_ext(wdata
, payload
, 21);
1551 static void handler_drm_SKAI1(struct wiimote_data
*wdata
, const __u8
*payload
)
1553 handler_keys(wdata
, payload
);
1555 wdata
->state
.accel_split
[0] = payload
[2];
1556 wdata
->state
.accel_split
[1] = (payload
[0] >> 1) & (0x10 | 0x20);
1557 wdata
->state
.accel_split
[1] |= (payload
[1] << 1) & (0x40 | 0x80);
1559 ir_to_input0(wdata
, &payload
[3], false);
1560 ir_to_input1(wdata
, &payload
[12], false);
1563 static void handler_drm_SKAI2(struct wiimote_data
*wdata
, const __u8
*payload
)
1567 handler_keys(wdata
, payload
);
1569 wdata
->state
.accel_split
[1] |= (payload
[0] >> 5) & (0x01 | 0x02);
1570 wdata
->state
.accel_split
[1] |= (payload
[1] >> 3) & (0x04 | 0x08);
1574 buf
[2] = wdata
->state
.accel_split
[0];
1575 buf
[3] = payload
[2];
1576 buf
[4] = wdata
->state
.accel_split
[1];
1577 handler_accel(wdata
, buf
);
1579 ir_to_input2(wdata
, &payload
[3], false);
1580 ir_to_input3(wdata
, &payload
[12], false);
1583 struct wiiproto_handler
{
1586 void (*func
)(struct wiimote_data
*wdata
, const __u8
*payload
);
1589 static const struct wiiproto_handler handlers
[] = {
1590 { .id
= WIIPROTO_REQ_STATUS
, .size
= 6, .func
= handler_status
},
1591 { .id
= WIIPROTO_REQ_STATUS
, .size
= 2, .func
= handler_status_K
},
1592 { .id
= WIIPROTO_REQ_DATA
, .size
= 21, .func
= handler_data
},
1593 { .id
= WIIPROTO_REQ_DATA
, .size
= 2, .func
= handler_generic_K
},
1594 { .id
= WIIPROTO_REQ_RETURN
, .size
= 4, .func
= handler_return
},
1595 { .id
= WIIPROTO_REQ_RETURN
, .size
= 2, .func
= handler_generic_K
},
1596 { .id
= WIIPROTO_REQ_DRM_K
, .size
= 2, .func
= handler_keys
},
1597 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 5, .func
= handler_drm_KA
},
1598 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 2, .func
= handler_generic_K
},
1599 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 10, .func
= handler_drm_KE
},
1600 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 2, .func
= handler_generic_K
},
1601 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 17, .func
= handler_drm_KAI
},
1602 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 2, .func
= handler_generic_K
},
1603 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 21, .func
= handler_drm_KEE
},
1604 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 2, .func
= handler_generic_K
},
1605 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 21, .func
= handler_drm_KAE
},
1606 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 2, .func
= handler_generic_K
},
1607 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 21, .func
= handler_drm_KIE
},
1608 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 2, .func
= handler_generic_K
},
1609 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 21, .func
= handler_drm_KAIE
},
1610 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 2, .func
= handler_generic_K
},
1611 { .id
= WIIPROTO_REQ_DRM_E
, .size
= 21, .func
= handler_drm_E
},
1612 { .id
= WIIPROTO_REQ_DRM_SKAI1
, .size
= 21, .func
= handler_drm_SKAI1
},
1613 { .id
= WIIPROTO_REQ_DRM_SKAI2
, .size
= 21, .func
= handler_drm_SKAI2
},
1617 static int wiimote_hid_event(struct hid_device
*hdev
, struct hid_report
*report
,
1618 u8
*raw_data
, int size
)
1620 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1621 const struct wiiproto_handler
*h
;
1623 unsigned long flags
;
1628 for (i
= 0; handlers
[i
].id
; ++i
) {
1630 if (h
->id
== raw_data
[0] && h
->size
< size
) {
1631 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1632 h
->func(wdata
, &raw_data
[1]);
1633 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1638 if (!handlers
[i
].id
)
1639 hid_warn(hdev
, "Unhandled report %hhu size %d\n", raw_data
[0],
1645 static ssize_t
wiimote_ext_show(struct device
*dev
,
1646 struct device_attribute
*attr
,
1649 struct wiimote_data
*wdata
= dev_to_wii(dev
);
1651 unsigned long flags
;
1653 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1654 type
= wdata
->state
.exttype
;
1655 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1658 case WIIMOTE_EXT_NONE
:
1659 return sprintf(buf
, "none\n");
1660 case WIIMOTE_EXT_NUNCHUK
:
1661 return sprintf(buf
, "nunchuk\n");
1662 case WIIMOTE_EXT_CLASSIC_CONTROLLER
:
1663 return sprintf(buf
, "classic\n");
1664 case WIIMOTE_EXT_BALANCE_BOARD
:
1665 return sprintf(buf
, "balanceboard\n");
1666 case WIIMOTE_EXT_PRO_CONTROLLER
:
1667 return sprintf(buf
, "procontroller\n");
1668 case WIIMOTE_EXT_DRUMS
:
1669 return sprintf(buf
, "drums\n");
1670 case WIIMOTE_EXT_GUITAR
:
1671 return sprintf(buf
, "guitar\n");
1672 case WIIMOTE_EXT_UNKNOWN
:
1674 return sprintf(buf
, "unknown\n");
1678 static ssize_t
wiimote_ext_store(struct device
*dev
,
1679 struct device_attribute
*attr
,
1680 const char *buf
, size_t count
)
1682 struct wiimote_data
*wdata
= dev_to_wii(dev
);
1684 if (!strcmp(buf
, "scan")) {
1685 wiimote_schedule(wdata
);
1690 return strnlen(buf
, PAGE_SIZE
);
1693 static DEVICE_ATTR(extension
, S_IRUGO
| S_IWUSR
| S_IWGRP
, wiimote_ext_show
,
1696 static ssize_t
wiimote_dev_show(struct device
*dev
,
1697 struct device_attribute
*attr
,
1700 struct wiimote_data
*wdata
= dev_to_wii(dev
);
1702 unsigned long flags
;
1704 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1705 type
= wdata
->state
.devtype
;
1706 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1709 case WIIMOTE_DEV_GENERIC
:
1710 return sprintf(buf
, "generic\n");
1711 case WIIMOTE_DEV_GEN10
:
1712 return sprintf(buf
, "gen10\n");
1713 case WIIMOTE_DEV_GEN20
:
1714 return sprintf(buf
, "gen20\n");
1715 case WIIMOTE_DEV_BALANCE_BOARD
:
1716 return sprintf(buf
, "balanceboard\n");
1717 case WIIMOTE_DEV_PRO_CONTROLLER
:
1718 return sprintf(buf
, "procontroller\n");
1719 case WIIMOTE_DEV_PENDING
:
1720 return sprintf(buf
, "pending\n");
1721 case WIIMOTE_DEV_UNKNOWN
:
1723 return sprintf(buf
, "unknown\n");
1727 static DEVICE_ATTR(devtype
, S_IRUGO
, wiimote_dev_show
, NULL
);
1729 static struct wiimote_data
*wiimote_create(struct hid_device
*hdev
)
1731 struct wiimote_data
*wdata
;
1733 wdata
= kzalloc(sizeof(*wdata
), GFP_KERNEL
);
1738 hid_set_drvdata(hdev
, wdata
);
1740 spin_lock_init(&wdata
->queue
.lock
);
1741 INIT_WORK(&wdata
->queue
.worker
, wiimote_queue_worker
);
1743 spin_lock_init(&wdata
->state
.lock
);
1744 init_completion(&wdata
->state
.ready
);
1745 mutex_init(&wdata
->state
.sync
);
1746 wdata
->state
.drm
= WIIPROTO_REQ_DRM_K
;
1747 wdata
->state
.cmd_battery
= 0xff;
1749 INIT_WORK(&wdata
->init_worker
, wiimote_init_worker
);
1750 timer_setup(&wdata
->timer
, wiimote_init_timeout
, 0);
1755 static void wiimote_destroy(struct wiimote_data
*wdata
)
1757 unsigned long flags
;
1759 wiidebug_deinit(wdata
);
1761 /* prevent init_worker from being scheduled again */
1762 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1763 wdata
->state
.flags
|= WIIPROTO_FLAG_EXITING
;
1764 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1766 cancel_work_sync(&wdata
->init_worker
);
1767 del_timer_sync(&wdata
->timer
);
1769 device_remove_file(&wdata
->hdev
->dev
, &dev_attr_devtype
);
1770 device_remove_file(&wdata
->hdev
->dev
, &dev_attr_extension
);
1772 wiimote_mp_unload(wdata
);
1773 wiimote_ext_unload(wdata
);
1774 wiimote_modules_unload(wdata
);
1775 cancel_work_sync(&wdata
->queue
.worker
);
1776 hid_hw_close(wdata
->hdev
);
1777 hid_hw_stop(wdata
->hdev
);
1782 static int wiimote_hid_probe(struct hid_device
*hdev
,
1783 const struct hid_device_id
*id
)
1785 struct wiimote_data
*wdata
;
1788 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
1790 wdata
= wiimote_create(hdev
);
1792 hid_err(hdev
, "Can't alloc device\n");
1796 ret
= hid_parse(hdev
);
1798 hid_err(hdev
, "HID parse failed\n");
1802 ret
= hid_hw_start(hdev
, HID_CONNECT_HIDRAW
);
1804 hid_err(hdev
, "HW start failed\n");
1808 ret
= hid_hw_open(hdev
);
1810 hid_err(hdev
, "cannot start hardware I/O\n");
1814 ret
= device_create_file(&hdev
->dev
, &dev_attr_extension
);
1816 hid_err(hdev
, "cannot create sysfs attribute\n");
1820 ret
= device_create_file(&hdev
->dev
, &dev_attr_devtype
);
1822 hid_err(hdev
, "cannot create sysfs attribute\n");
1826 ret
= wiidebug_init(wdata
);
1830 hid_info(hdev
, "New device registered\n");
1832 /* schedule device detection */
1833 wiimote_schedule(wdata
);
1838 wiimote_destroy(wdata
);
1842 device_remove_file(&wdata
->hdev
->dev
, &dev_attr_extension
);
1848 input_free_device(wdata
->ir
);
1849 input_free_device(wdata
->accel
);
1854 static void wiimote_hid_remove(struct hid_device
*hdev
)
1856 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1858 hid_info(hdev
, "Device removed\n");
1859 wiimote_destroy(wdata
);
1862 static const struct hid_device_id wiimote_hid_devices
[] = {
1863 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1864 USB_DEVICE_ID_NINTENDO_WIIMOTE
) },
1865 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1866 USB_DEVICE_ID_NINTENDO_WIIMOTE2
) },
1870 bool wiimote_dpad_as_analog
= false;
1871 module_param_named(dpad_as_analog
, wiimote_dpad_as_analog
, bool, 0644);
1872 MODULE_PARM_DESC(dpad_as_analog
, "Use D-Pad as main analog input");
1874 MODULE_DEVICE_TABLE(hid
, wiimote_hid_devices
);
1876 static struct hid_driver wiimote_hid_driver
= {
1878 .id_table
= wiimote_hid_devices
,
1879 .probe
= wiimote_hid_probe
,
1880 .remove
= wiimote_hid_remove
,
1881 .raw_event
= wiimote_hid_event
,
1883 module_hid_driver(wiimote_hid_driver
);
1885 MODULE_LICENSE("GPL");
1886 MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
1887 MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals");