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 (drm
== WIIPROTO_REQ_NULL
)
246 drm
= select_drm(wdata
);
248 cmd
[0] = WIIPROTO_REQ_DRM
;
252 wdata
->state
.drm
= drm
;
253 wiiproto_keep_rumble(wdata
, &cmd
[1]);
254 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
257 void wiiproto_req_status(struct wiimote_data
*wdata
)
261 cmd
[0] = WIIPROTO_REQ_SREQ
;
264 wiiproto_keep_rumble(wdata
, &cmd
[1]);
265 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
268 void wiiproto_req_accel(struct wiimote_data
*wdata
, __u8 accel
)
271 if (accel
== !!(wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
))
275 wdata
->state
.flags
|= WIIPROTO_FLAG_ACCEL
;
277 wdata
->state
.flags
&= ~WIIPROTO_FLAG_ACCEL
;
279 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
282 void wiiproto_req_ir1(struct wiimote_data
*wdata
, __u8 flags
)
286 cmd
[0] = WIIPROTO_REQ_IR1
;
289 wiiproto_keep_rumble(wdata
, &cmd
[1]);
290 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
293 void wiiproto_req_ir2(struct wiimote_data
*wdata
, __u8 flags
)
297 cmd
[0] = WIIPROTO_REQ_IR2
;
300 wiiproto_keep_rumble(wdata
, &cmd
[1]);
301 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
304 #define wiiproto_req_wreg(wdata, os, buf, sz) \
305 wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
307 #define wiiproto_req_weeprom(wdata, os, buf, sz) \
308 wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
310 static void wiiproto_req_wmem(struct wiimote_data
*wdata
, bool eeprom
,
311 __u32 offset
, const __u8
*buf
, __u8 size
)
315 if (size
> 16 || size
== 0) {
316 hid_warn(wdata
->hdev
, "Invalid length %d wmem request\n", size
);
320 memset(cmd
, 0, sizeof(cmd
));
321 cmd
[0] = WIIPROTO_REQ_WMEM
;
322 cmd
[2] = (offset
>> 16) & 0xff;
323 cmd
[3] = (offset
>> 8) & 0xff;
324 cmd
[4] = offset
& 0xff;
326 memcpy(&cmd
[6], buf
, size
);
331 wiiproto_keep_rumble(wdata
, &cmd
[1]);
332 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
335 void wiiproto_req_rmem(struct wiimote_data
*wdata
, bool eeprom
, __u32 offset
,
341 hid_warn(wdata
->hdev
, "Invalid length %d rmem request\n", size
);
345 cmd
[0] = WIIPROTO_REQ_RMEM
;
347 cmd
[2] = (offset
>> 16) & 0xff;
348 cmd
[3] = (offset
>> 8) & 0xff;
349 cmd
[4] = offset
& 0xff;
350 cmd
[5] = (size
>> 8) & 0xff;
351 cmd
[6] = size
& 0xff;
356 wiiproto_keep_rumble(wdata
, &cmd
[1]);
357 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
360 /* requries the cmd-mutex to be held */
361 int wiimote_cmd_write(struct wiimote_data
*wdata
, __u32 offset
,
362 const __u8
*wmem
, __u8 size
)
367 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
368 wiimote_cmd_set(wdata
, WIIPROTO_REQ_WMEM
, 0);
369 wiiproto_req_wreg(wdata
, offset
, wmem
, size
);
370 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
372 ret
= wiimote_cmd_wait(wdata
);
373 if (!ret
&& wdata
->state
.cmd_err
)
379 /* requries the cmd-mutex to be held */
380 ssize_t
wiimote_cmd_read(struct wiimote_data
*wdata
, __u32 offset
, __u8
*rmem
,
386 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
387 wdata
->state
.cmd_read_size
= size
;
388 wdata
->state
.cmd_read_buf
= rmem
;
389 wiimote_cmd_set(wdata
, WIIPROTO_REQ_RMEM
, offset
& 0xffff);
390 wiiproto_req_rreg(wdata
, offset
, size
);
391 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
393 ret
= wiimote_cmd_wait(wdata
);
395 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
396 wdata
->state
.cmd_read_buf
= NULL
;
397 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
400 if (wdata
->state
.cmd_read_size
== 0)
403 ret
= wdata
->state
.cmd_read_size
;
409 /* requires the cmd-mutex to be held */
410 static int wiimote_cmd_init_ext(struct wiimote_data
*wdata
)
415 /* initialize extension */
417 ret
= wiimote_cmd_write(wdata
, 0xa400f0, &wmem
, sizeof(wmem
));
421 /* disable default encryption */
423 ret
= wiimote_cmd_write(wdata
, 0xa400fb, &wmem
, sizeof(wmem
));
430 /* requires the cmd-mutex to be held */
431 static __u8
wiimote_cmd_read_ext(struct wiimote_data
*wdata
, __u8
*rmem
)
435 /* read extension ID */
436 ret
= wiimote_cmd_read(wdata
, 0xa400fa, rmem
, 6);
438 return WIIMOTE_EXT_NONE
;
440 hid_dbg(wdata
->hdev
, "extension ID: %02x:%02x %02x:%02x %02x:%02x\n",
441 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
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] == 0x04 && rmem
[5] == 0x02)
448 return WIIMOTE_EXT_BALANCE_BOARD
;
450 return WIIMOTE_EXT_UNKNOWN
;
453 /* requires the cmd-mutex to be held */
454 static int wiimote_cmd_init_mp(struct wiimote_data
*wdata
)
461 ret
= wiimote_cmd_write(wdata
, 0xa600f0, &wmem
, sizeof(wmem
));
465 /* disable default encryption */
467 ret
= wiimote_cmd_write(wdata
, 0xa600fb, &wmem
, sizeof(wmem
));
474 /* requires the cmd-mutex to be held */
475 static bool wiimote_cmd_map_mp(struct wiimote_data
*wdata
, __u8 exttype
)
479 /* map MP with correct pass-through mode */
486 return wiimote_cmd_write(wdata
, 0xa600fe, &wmem
, sizeof(wmem
));
489 /* requires the cmd-mutex to be held */
490 static bool wiimote_cmd_read_mp(struct wiimote_data
*wdata
, __u8
*rmem
)
494 /* read motion plus ID */
495 ret
= wiimote_cmd_read(wdata
, 0xa600fa, rmem
, 6);
499 hid_dbg(wdata
->hdev
, "motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
500 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
505 hid_info(wdata
->hdev
, "unknown motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
506 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
511 /* requires the cmd-mutex to be held */
512 static __u8
wiimote_cmd_read_mp_mapped(struct wiimote_data
*wdata
)
517 /* read motion plus ID */
518 ret
= wiimote_cmd_read(wdata
, 0xa400fa, rmem
, 6);
520 return WIIMOTE_MP_NONE
;
522 hid_dbg(wdata
->hdev
, "mapped motion plus ID: %02x:%02x %02x:%02x %02x:%02x\n",
523 rmem
[0], rmem
[1], rmem
[2], rmem
[3], rmem
[4], rmem
[5]);
525 if (rmem
[0] == 0xff && rmem
[1] == 0xff && rmem
[2] == 0xff &&
526 rmem
[3] == 0xff && rmem
[4] == 0xff && rmem
[5] == 0xff)
527 return WIIMOTE_MP_NONE
;
529 if (rmem
[4] == 0x04 && rmem
[5] == 0x05)
530 return WIIMOTE_MP_SINGLE
;
531 else if (rmem
[4] == 0x05 && rmem
[5] == 0x05)
532 return WIIMOTE_MP_PASSTHROUGH_NUNCHUK
;
533 else if (rmem
[4] == 0x07 && rmem
[5] == 0x05)
534 return WIIMOTE_MP_PASSTHROUGH_CLASSIC
;
536 return WIIMOTE_MP_UNKNOWN
;
539 /* device module handling */
541 static const __u8
* const wiimote_devtype_mods
[WIIMOTE_DEV_NUM
] = {
542 [WIIMOTE_DEV_PENDING
] = (const __u8
[]){
545 [WIIMOTE_DEV_UNKNOWN
] = (const __u8
[]){
548 [WIIMOTE_DEV_GENERIC
] = (const __u8
[]){
560 [WIIMOTE_DEV_GEN10
] = (const __u8
[]){
572 [WIIMOTE_DEV_GEN20
] = (const __u8
[]){
584 [WIIMOTE_DEV_BALANCE_BOARD
] = (const __u8
[]) {
591 static void wiimote_modules_load(struct wiimote_data
*wdata
,
592 unsigned int devtype
)
594 bool need_input
= false;
595 const __u8
*mods
, *iter
;
596 const struct wiimod_ops
*ops
;
599 mods
= wiimote_devtype_mods
[devtype
];
601 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
602 if (wiimod_table
[*iter
]->flags
& WIIMOD_FLAG_INPUT
) {
609 wdata
->input
= input_allocate_device();
613 input_set_drvdata(wdata
->input
, wdata
);
614 wdata
->input
->dev
.parent
= &wdata
->hdev
->dev
;
615 wdata
->input
->id
.bustype
= wdata
->hdev
->bus
;
616 wdata
->input
->id
.vendor
= wdata
->hdev
->vendor
;
617 wdata
->input
->id
.product
= wdata
->hdev
->product
;
618 wdata
->input
->id
.version
= wdata
->hdev
->version
;
619 wdata
->input
->name
= WIIMOTE_NAME
;
622 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
623 ops
= wiimod_table
[*iter
];
627 ret
= ops
->probe(ops
, wdata
);
633 ret
= input_register_device(wdata
->input
);
638 spin_lock_irq(&wdata
->state
.lock
);
639 wdata
->state
.devtype
= devtype
;
640 spin_unlock_irq(&wdata
->state
.lock
);
644 for ( ; iter
-- != mods
; ) {
645 ops
= wiimod_table
[*iter
];
647 ops
->remove(ops
, wdata
);
651 input_free_device(wdata
->input
);
656 static void wiimote_modules_unload(struct wiimote_data
*wdata
)
658 const __u8
*mods
, *iter
;
659 const struct wiimod_ops
*ops
;
662 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
664 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
665 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
666 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
668 /* find end of list */
669 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
)
673 input_get_device(wdata
->input
);
674 input_unregister_device(wdata
->input
);
677 for ( ; iter
-- != mods
; ) {
678 ops
= wiimod_table
[*iter
];
680 ops
->remove(ops
, wdata
);
684 input_put_device(wdata
->input
);
689 /* device extension handling */
691 static void wiimote_ext_load(struct wiimote_data
*wdata
, unsigned int ext
)
694 const struct wiimod_ops
*ops
;
697 ops
= wiimod_ext_table
[ext
];
700 ret
= ops
->probe(ops
, wdata
);
702 ext
= WIIMOTE_EXT_UNKNOWN
;
705 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
706 wdata
->state
.exttype
= ext
;
707 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
710 static void wiimote_ext_unload(struct wiimote_data
*wdata
)
713 const struct wiimod_ops
*ops
;
715 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
717 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
718 wdata
->state
.exttype
= WIIMOTE_EXT_UNKNOWN
;
719 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_USED
;
720 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
723 ops
->remove(ops
, wdata
);
726 static void wiimote_mp_load(struct wiimote_data
*wdata
)
729 const struct wiimod_ops
*ops
;
735 ret
= ops
->probe(ops
, wdata
);
740 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
741 wdata
->state
.mp
= mode
;
742 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
745 static void wiimote_mp_unload(struct wiimote_data
*wdata
)
748 const struct wiimod_ops
*ops
;
750 if (wdata
->state
.mp
< 2)
755 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
757 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_USED
;
758 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
761 ops
->remove(ops
, wdata
);
764 /* device (re-)initialization and detection */
766 static const char *wiimote_devtype_names
[WIIMOTE_DEV_NUM
] = {
767 [WIIMOTE_DEV_PENDING
] = "Pending",
768 [WIIMOTE_DEV_UNKNOWN
] = "Unknown",
769 [WIIMOTE_DEV_GENERIC
] = "Generic",
770 [WIIMOTE_DEV_GEN10
] = "Nintendo Wii Remote (Gen 1)",
771 [WIIMOTE_DEV_GEN20
] = "Nintendo Wii Remote Plus (Gen 2)",
772 [WIIMOTE_DEV_BALANCE_BOARD
] = "Nintendo Wii Balance Board",
775 /* Try to guess the device type based on all collected information. We
776 * first try to detect by static extension types, then VID/PID and the
777 * device name. If we cannot detect the device, we use
778 * WIIMOTE_DEV_GENERIC so all modules will get probed on the device. */
779 static void wiimote_init_set_type(struct wiimote_data
*wdata
,
782 __u8 devtype
= WIIMOTE_DEV_GENERIC
;
783 __u16 vendor
, product
;
786 vendor
= wdata
->hdev
->vendor
;
787 product
= wdata
->hdev
->product
;
788 name
= wdata
->hdev
->name
;
790 if (exttype
== WIIMOTE_EXT_BALANCE_BOARD
) {
791 devtype
= WIIMOTE_DEV_BALANCE_BOARD
;
795 if (!strcmp(name
, "Nintendo RVL-CNT-01")) {
796 devtype
= WIIMOTE_DEV_GEN10
;
798 } else if (!strcmp(name
, "Nintendo RVL-CNT-01-TR")) {
799 devtype
= WIIMOTE_DEV_GEN20
;
801 } else if (!strcmp(name
, "Nintendo RVL-WBC-01")) {
802 devtype
= WIIMOTE_DEV_BALANCE_BOARD
;
806 if (vendor
== USB_VENDOR_ID_NINTENDO
) {
807 if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE
) {
808 devtype
= WIIMOTE_DEV_GEN10
;
810 } else if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE2
) {
811 devtype
= WIIMOTE_DEV_GEN20
;
817 if (devtype
== WIIMOTE_DEV_GENERIC
)
818 hid_info(wdata
->hdev
, "cannot detect device; NAME: %s VID: %04x PID: %04x EXT: %04x\n",
819 name
, vendor
, product
, exttype
);
821 hid_info(wdata
->hdev
, "detected device: %s\n",
822 wiimote_devtype_names
[devtype
]);
824 wiimote_modules_load(wdata
, devtype
);
827 static void wiimote_init_detect(struct wiimote_data
*wdata
)
829 __u8 exttype
= WIIMOTE_EXT_NONE
, extdata
[6];
833 wiimote_cmd_acquire_noint(wdata
);
835 spin_lock_irq(&wdata
->state
.lock
);
836 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
837 wiimote_cmd_set(wdata
, WIIPROTO_REQ_SREQ
, 0);
838 wiiproto_req_status(wdata
);
839 spin_unlock_irq(&wdata
->state
.lock
);
841 ret
= wiimote_cmd_wait_noint(wdata
);
845 spin_lock_irq(&wdata
->state
.lock
);
846 ext
= wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
;
847 spin_unlock_irq(&wdata
->state
.lock
);
852 wiimote_cmd_init_ext(wdata
);
853 exttype
= wiimote_cmd_read_ext(wdata
, extdata
);
856 wiimote_cmd_release(wdata
);
857 wiimote_init_set_type(wdata
, exttype
);
858 /* schedule MP timer */
859 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
863 * MP hotplug events are not generated by the wiimote. Therefore, we need
864 * polling to detect it. We use a 4s interval for polling MP registers. This
865 * seems reasonable considering applications can trigger it manually via
868 static void wiimote_init_poll_mp(struct wiimote_data
*wdata
)
873 wiimote_cmd_acquire_noint(wdata
);
874 wiimote_cmd_init_mp(wdata
);
875 mp
= wiimote_cmd_read_mp(wdata
, mpdata
);
876 wiimote_cmd_release(wdata
);
878 /* load/unload MP module if it changed */
880 if (!wdata
->state
.mp
) {
881 hid_info(wdata
->hdev
, "detected extension: Nintendo Wii Motion Plus\n");
882 wiimote_mp_load(wdata
);
884 } else if (wdata
->state
.mp
) {
885 wiimote_mp_unload(wdata
);
888 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
892 * Check whether the wiimote is in the expected state. The extension registers
893 * may change during hotplug and initialization so we might get hotplug events
894 * that we caused by remapping some memory.
895 * We use some heuristics here to check known states. If the wiimote is in the
896 * expected state, we can ignore the hotplug event.
898 * Returns "true" if the device is in expected state, "false" if we should
899 * redo hotplug handling and extension initialization.
901 static bool wiimote_init_check(struct wiimote_data
*wdata
)
907 spin_lock_irq(&wdata
->state
.lock
);
908 flags
= wdata
->state
.flags
;
909 spin_unlock_irq(&wdata
->state
.lock
);
911 wiimote_cmd_acquire_noint(wdata
);
913 /* If MP is used and active, but the extension is not, we expect:
914 * read_mp_mapped() == WIIMOTE_MP_SINGLE
915 * state.flags == !EXT_ACTIVE && !MP_PLUGGED && MP_ACTIVE
916 * We do not check EXT_PLUGGED because it might change during
917 * initialization of MP without extensions.
918 * - If MP is unplugged/replugged, read_mp_mapped() fails
919 * - If EXT is plugged, MP_PLUGGED will get set */
920 if (wdata
->state
.exttype
== WIIMOTE_EXT_NONE
&&
921 wdata
->state
.mp
> 0 && (flags
& WIIPROTO_FLAG_MP_USED
)) {
922 type
= wiimote_cmd_read_mp_mapped(wdata
);
923 ret
= type
== WIIMOTE_MP_SINGLE
;
925 spin_lock_irq(&wdata
->state
.lock
);
926 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
927 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
);
928 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
929 spin_unlock_irq(&wdata
->state
.lock
);
932 hid_dbg(wdata
->hdev
, "state left: !EXT && MP\n");
934 /* while MP is mapped, we get EXT_PLUGGED events */
940 /* If MP is unused, but the extension port is used, we expect:
941 * read_ext == state.exttype
942 * state.flags == !MP_ACTIVE && EXT_ACTIVE
943 * - If MP is plugged/unplugged, our timer detects it
944 * - If EXT is unplugged/replugged, EXT_ACTIVE will become unset */
945 if (!(flags
& WIIPROTO_FLAG_MP_USED
) &&
946 wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
) {
947 type
= wiimote_cmd_read_ext(wdata
, data
);
948 ret
= type
== wdata
->state
.exttype
;
950 spin_lock_irq(&wdata
->state
.lock
);
951 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
952 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
953 spin_unlock_irq(&wdata
->state
.lock
);
956 hid_dbg(wdata
->hdev
, "state left: EXT && !MP\n");
958 /* poll MP for hotplug events */
964 /* If neither MP nor an extension are used, we expect:
965 * read_ext() == WIIMOTE_EXT_NONE
966 * state.flags == !MP_ACTIVE && !EXT_ACTIVE && !EXT_PLUGGED
967 * No need to perform any action in this case as everything is
969 * - If MP is plugged/unplugged, our timer detects it
970 * - If EXT is plugged, EXT_PLUGGED will be set */
971 if (!(flags
& WIIPROTO_FLAG_MP_USED
) &&
972 wdata
->state
.exttype
== WIIMOTE_EXT_NONE
) {
973 type
= wiimote_cmd_read_ext(wdata
, data
);
974 ret
= type
== wdata
->state
.exttype
;
976 spin_lock_irq(&wdata
->state
.lock
);
977 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
978 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
979 ret
= ret
&& !(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
);
980 spin_unlock_irq(&wdata
->state
.lock
);
983 hid_dbg(wdata
->hdev
, "state left: !EXT && !MP\n");
985 /* poll MP for hotplug events */
991 /* The trickiest part is if both EXT and MP are active. We cannot read
992 * the EXT ID, anymore, because MP is mapped over it. However, we use
993 * a handy trick here:
994 * - EXT_ACTIVE is unset whenever !MP_PLUGGED is sent
995 * MP_PLUGGED might be re-sent again before we are scheduled, but
996 * EXT_ACTIVE will stay unset.
997 * So it is enough to check for mp_mapped() and MP_ACTIVE and
998 * EXT_ACTIVE. EXT_PLUGGED is a sanity check. */
999 if (wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
&&
1000 wdata
->state
.mp
> 0 && (flags
& WIIPROTO_FLAG_MP_USED
)) {
1001 type
= wiimote_cmd_read_mp_mapped(wdata
);
1002 ret
= type
!= WIIMOTE_MP_NONE
;
1003 ret
= ret
&& type
!= WIIMOTE_MP_UNKNOWN
;
1004 ret
= ret
&& type
!= WIIMOTE_MP_SINGLE
;
1006 spin_lock_irq(&wdata
->state
.lock
);
1007 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
);
1008 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
);
1009 ret
= ret
&& (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
);
1010 spin_unlock_irq(&wdata
->state
.lock
);
1013 hid_dbg(wdata
->hdev
, "state left: EXT && MP\n");
1015 /* while MP is mapped, we get EXT_PLUGGED events */
1025 wiimote_cmd_release(wdata
);
1027 /* only poll for MP if requested and if state didn't change */
1029 wiimote_init_poll_mp(wdata
);
1034 static const char *wiimote_exttype_names
[WIIMOTE_EXT_NUM
] = {
1035 [WIIMOTE_EXT_NONE
] = "None",
1036 [WIIMOTE_EXT_UNKNOWN
] = "Unknown",
1037 [WIIMOTE_EXT_BALANCE_BOARD
] = "Nintendo Wii Balance Board",
1041 * Handle hotplug events
1042 * If we receive an hotplug event and the device-check failed, we deinitialize
1043 * the extension ports, re-read all extension IDs and set the device into
1044 * the desired state. This involves mapping MP into the main extension
1045 * registers, setting up extension passthrough modes and initializing the
1046 * requested extensions.
1048 static void wiimote_init_hotplug(struct wiimote_data
*wdata
)
1050 __u8 exttype
, extdata
[6], mpdata
[6];
1054 hid_dbg(wdata
->hdev
, "detect extensions..\n");
1056 wiimote_cmd_acquire_noint(wdata
);
1058 spin_lock_irq(&wdata
->state
.lock
);
1060 /* get state snapshot that we will then work on */
1061 flags
= wdata
->state
.flags
;
1063 /* disable event forwarding temporarily */
1064 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1065 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_ACTIVE
;
1067 spin_unlock_irq(&wdata
->state
.lock
);
1069 /* init extension and MP (deactivates current extension or MP) */
1070 wiimote_cmd_init_ext(wdata
);
1071 wiimote_cmd_init_mp(wdata
);
1072 mp
= wiimote_cmd_read_mp(wdata
, mpdata
);
1073 exttype
= wiimote_cmd_read_ext(wdata
, extdata
);
1075 wiimote_cmd_release(wdata
);
1077 /* load/unload extension module if it changed */
1078 if (exttype
!= wdata
->state
.exttype
) {
1079 /* unload previous extension */
1080 wiimote_ext_unload(wdata
);
1082 if (exttype
== WIIMOTE_EXT_UNKNOWN
) {
1083 hid_info(wdata
->hdev
, "cannot detect extension; %02x:%02x %02x:%02x %02x:%02x\n",
1084 extdata
[0], extdata
[1], extdata
[2],
1085 extdata
[3], extdata
[4], extdata
[5]);
1086 } else if (exttype
== WIIMOTE_EXT_NONE
) {
1087 spin_lock_irq(&wdata
->state
.lock
);
1088 wdata
->state
.exttype
= WIIMOTE_EXT_NONE
;
1089 spin_unlock_irq(&wdata
->state
.lock
);
1091 hid_info(wdata
->hdev
, "detected extension: %s\n",
1092 wiimote_exttype_names
[exttype
]);
1093 /* try loading new extension */
1094 wiimote_ext_load(wdata
, exttype
);
1098 /* load/unload MP module if it changed */
1100 if (!wdata
->state
.mp
) {
1101 hid_info(wdata
->hdev
, "detected extension: Nintendo Wii Motion Plus\n");
1102 wiimote_mp_load(wdata
);
1104 } else if (wdata
->state
.mp
) {
1105 wiimote_mp_unload(wdata
);
1108 /* if MP is not used, do not map or activate it */
1109 if (!(flags
& WIIPROTO_FLAG_MP_USED
))
1112 /* map MP into main extension registers if used */
1114 wiimote_cmd_acquire_noint(wdata
);
1115 wiimote_cmd_map_mp(wdata
, exttype
);
1116 wiimote_cmd_release(wdata
);
1118 /* delete MP hotplug timer */
1119 del_timer_sync(&wdata
->timer
);
1121 /* reschedule MP hotplug timer */
1122 mod_timer(&wdata
->timer
, jiffies
+ HZ
* 4);
1125 spin_lock_irq(&wdata
->state
.lock
);
1127 /* enable data forwarding again and set expected hotplug state */
1129 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_ACTIVE
;
1130 if (wdata
->state
.exttype
== WIIMOTE_EXT_NONE
) {
1131 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1132 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1134 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1135 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_PLUGGED
;
1136 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_ACTIVE
;
1138 } else if (wdata
->state
.exttype
!= WIIMOTE_EXT_NONE
) {
1139 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_ACTIVE
;
1142 /* request status report for hotplug state updates */
1143 wiiproto_req_status(wdata
);
1145 spin_unlock_irq(&wdata
->state
.lock
);
1147 hid_dbg(wdata
->hdev
, "detected extensions: MP: %d EXT: %d\n",
1148 wdata
->state
.mp
, wdata
->state
.exttype
);
1151 static void wiimote_init_worker(struct work_struct
*work
)
1153 struct wiimote_data
*wdata
= container_of(work
, struct wiimote_data
,
1156 if (wdata
->state
.devtype
== WIIMOTE_DEV_PENDING
)
1157 wiimote_init_detect(wdata
);
1158 if (!wiimote_init_check(wdata
))
1159 wiimote_init_hotplug(wdata
);
1162 void __wiimote_schedule(struct wiimote_data
*wdata
)
1164 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXITING
))
1165 schedule_work(&wdata
->init_worker
);
1168 static void wiimote_schedule(struct wiimote_data
*wdata
)
1170 unsigned long flags
;
1172 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1173 __wiimote_schedule(wdata
);
1174 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1177 static void wiimote_init_timeout(unsigned long arg
)
1179 struct wiimote_data
*wdata
= (void*)arg
;
1181 wiimote_schedule(wdata
);
1184 /* protocol handlers */
1186 static void handler_keys(struct wiimote_data
*wdata
, const __u8
*payload
)
1188 const __u8
*iter
, *mods
;
1189 const struct wiimod_ops
*ops
;
1191 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1193 ops
->in_keys(wdata
, payload
);
1197 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1198 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1199 ops
= wiimod_table
[*iter
];
1201 ops
->in_keys(wdata
, payload
);
1207 static void handler_accel(struct wiimote_data
*wdata
, const __u8
*payload
)
1209 const __u8
*iter
, *mods
;
1210 const struct wiimod_ops
*ops
;
1212 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1213 if (ops
->in_accel
) {
1214 ops
->in_accel(wdata
, payload
);
1218 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1219 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1220 ops
= wiimod_table
[*iter
];
1221 if (ops
->in_accel
) {
1222 ops
->in_accel(wdata
, payload
);
1228 static bool valid_ext_handler(const struct wiimod_ops
*ops
, size_t len
)
1232 if ((ops
->flags
& WIIMOD_FLAG_EXT8
) && len
< 8)
1234 if ((ops
->flags
& WIIMOD_FLAG_EXT16
) && len
< 16)
1240 static void handler_ext(struct wiimote_data
*wdata
, const __u8
*payload
,
1243 const __u8
*iter
, *mods
;
1244 const struct wiimod_ops
*ops
;
1250 /* if MP is active, track MP slot hotplugging */
1251 if (wdata
->state
.flags
& WIIPROTO_FLAG_MP_ACTIVE
) {
1252 /* this bit is set for invalid events (eg. during hotplug) */
1253 if (payload
[5] & 0x01)
1256 if (payload
[4] & 0x01) {
1257 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
)) {
1258 hid_dbg(wdata
->hdev
, "MP hotplug: 1\n");
1259 wdata
->state
.flags
|= WIIPROTO_FLAG_MP_PLUGGED
;
1260 __wiimote_schedule(wdata
);
1263 if (wdata
->state
.flags
& WIIPROTO_FLAG_MP_PLUGGED
) {
1264 hid_dbg(wdata
->hdev
, "MP hotplug: 0\n");
1265 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1266 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1267 __wiimote_schedule(wdata
);
1271 /* detect MP data that is sent interleaved with EXT data */
1272 is_mp
= payload
[5] & 0x02;
1277 /* ignore EXT events if no extension is active */
1278 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_ACTIVE
) && !is_mp
)
1281 /* try forwarding to extension handler, first */
1282 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1283 if (is_mp
&& ops
->in_mp
) {
1284 ops
->in_mp(wdata
, payload
);
1286 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1287 ops
->in_ext(wdata
, payload
);
1291 /* try forwarding to MP handler */
1293 if (is_mp
&& ops
->in_mp
) {
1294 ops
->in_mp(wdata
, payload
);
1296 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1297 ops
->in_ext(wdata
, payload
);
1301 /* try forwarding to loaded modules */
1302 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1303 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1304 ops
= wiimod_table
[*iter
];
1305 if (is_mp
&& ops
->in_mp
) {
1306 ops
->in_mp(wdata
, payload
);
1308 } else if (!is_mp
&& valid_ext_handler(ops
, len
)) {
1309 ops
->in_ext(wdata
, payload
);
1315 #define ir_to_input0(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 0)
1316 #define ir_to_input1(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 1)
1317 #define ir_to_input2(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 2)
1318 #define ir_to_input3(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 3)
1320 static void handler_ir(struct wiimote_data
*wdata
, const __u8
*payload
,
1321 bool packed
, unsigned int id
)
1323 const __u8
*iter
, *mods
;
1324 const struct wiimod_ops
*ops
;
1326 ops
= wiimod_ext_table
[wdata
->state
.exttype
];
1328 ops
->in_ir(wdata
, payload
, packed
, id
);
1332 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
1333 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
1334 ops
= wiimod_table
[*iter
];
1336 ops
->in_ir(wdata
, payload
, packed
, id
);
1342 /* reduced status report with "BB BB" key data only */
1343 static void handler_status_K(struct wiimote_data
*wdata
,
1344 const __u8
*payload
)
1346 handler_keys(wdata
, payload
);
1348 /* on status reports the drm is reset so we need to resend the drm */
1349 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
1352 /* extended status report with "BB BB LF 00 00 VV" data */
1353 static void handler_status(struct wiimote_data
*wdata
, const __u8
*payload
)
1355 handler_status_K(wdata
, payload
);
1357 /* update extension status */
1358 if (payload
[2] & 0x02) {
1359 if (!(wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
)) {
1360 hid_dbg(wdata
->hdev
, "EXT hotplug: 1\n");
1361 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_PLUGGED
;
1362 __wiimote_schedule(wdata
);
1365 if (wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
) {
1366 hid_dbg(wdata
->hdev
, "EXT hotplug: 0\n");
1367 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
1368 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_PLUGGED
;
1369 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_ACTIVE
;
1370 wdata
->state
.flags
&= ~WIIPROTO_FLAG_MP_ACTIVE
;
1371 __wiimote_schedule(wdata
);
1375 wdata
->state
.cmd_battery
= payload
[5];
1376 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_SREQ
, 0))
1377 wiimote_cmd_complete(wdata
);
1380 /* reduced generic report with "BB BB" key data only */
1381 static void handler_generic_K(struct wiimote_data
*wdata
, const __u8
*payload
)
1383 handler_keys(wdata
, payload
);
1386 static void handler_data(struct wiimote_data
*wdata
, const __u8
*payload
)
1388 __u16 offset
= payload
[3] << 8 | payload
[4];
1389 __u8 size
= (payload
[2] >> 4) + 1;
1390 __u8 err
= payload
[2] & 0x0f;
1392 handler_keys(wdata
, payload
);
1394 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_RMEM
, offset
)) {
1397 else if (size
> wdata
->state
.cmd_read_size
)
1398 size
= wdata
->state
.cmd_read_size
;
1400 wdata
->state
.cmd_read_size
= size
;
1401 if (wdata
->state
.cmd_read_buf
)
1402 memcpy(wdata
->state
.cmd_read_buf
, &payload
[5], size
);
1403 wiimote_cmd_complete(wdata
);
1407 static void handler_return(struct wiimote_data
*wdata
, const __u8
*payload
)
1409 __u8 err
= payload
[3];
1410 __u8 cmd
= payload
[2];
1412 handler_keys(wdata
, payload
);
1414 if (wiimote_cmd_pending(wdata
, cmd
, 0)) {
1415 wdata
->state
.cmd_err
= err
;
1416 wiimote_cmd_complete(wdata
);
1418 hid_warn(wdata
->hdev
, "Remote error %hhu on req %hhu\n", err
,
1423 static void handler_drm_KA(struct wiimote_data
*wdata
, const __u8
*payload
)
1425 handler_keys(wdata
, payload
);
1426 handler_accel(wdata
, payload
);
1429 static void handler_drm_KE(struct wiimote_data
*wdata
, const __u8
*payload
)
1431 handler_keys(wdata
, payload
);
1432 handler_ext(wdata
, &payload
[2], 8);
1435 static void handler_drm_KAI(struct wiimote_data
*wdata
, const __u8
*payload
)
1437 handler_keys(wdata
, payload
);
1438 handler_accel(wdata
, payload
);
1439 ir_to_input0(wdata
, &payload
[5], false);
1440 ir_to_input1(wdata
, &payload
[8], false);
1441 ir_to_input2(wdata
, &payload
[11], false);
1442 ir_to_input3(wdata
, &payload
[14], false);
1445 static void handler_drm_KEE(struct wiimote_data
*wdata
, const __u8
*payload
)
1447 handler_keys(wdata
, payload
);
1448 handler_ext(wdata
, &payload
[2], 19);
1451 static void handler_drm_KIE(struct wiimote_data
*wdata
, const __u8
*payload
)
1453 handler_keys(wdata
, payload
);
1454 ir_to_input0(wdata
, &payload
[2], false);
1455 ir_to_input1(wdata
, &payload
[4], true);
1456 ir_to_input2(wdata
, &payload
[7], false);
1457 ir_to_input3(wdata
, &payload
[9], true);
1458 handler_ext(wdata
, &payload
[12], 9);
1461 static void handler_drm_KAE(struct wiimote_data
*wdata
, const __u8
*payload
)
1463 handler_keys(wdata
, payload
);
1464 handler_accel(wdata
, payload
);
1465 handler_ext(wdata
, &payload
[5], 16);
1468 static void handler_drm_KAIE(struct wiimote_data
*wdata
, const __u8
*payload
)
1470 handler_keys(wdata
, payload
);
1471 handler_accel(wdata
, payload
);
1472 ir_to_input0(wdata
, &payload
[5], false);
1473 ir_to_input1(wdata
, &payload
[7], true);
1474 ir_to_input2(wdata
, &payload
[10], false);
1475 ir_to_input3(wdata
, &payload
[12], true);
1476 handler_ext(wdata
, &payload
[15], 6);
1479 static void handler_drm_E(struct wiimote_data
*wdata
, const __u8
*payload
)
1481 handler_ext(wdata
, payload
, 21);
1484 static void handler_drm_SKAI1(struct wiimote_data
*wdata
, const __u8
*payload
)
1486 handler_keys(wdata
, payload
);
1488 wdata
->state
.accel_split
[0] = payload
[2];
1489 wdata
->state
.accel_split
[1] = (payload
[0] >> 1) & (0x10 | 0x20);
1490 wdata
->state
.accel_split
[1] |= (payload
[1] << 1) & (0x40 | 0x80);
1492 ir_to_input0(wdata
, &payload
[3], false);
1493 ir_to_input1(wdata
, &payload
[12], false);
1496 static void handler_drm_SKAI2(struct wiimote_data
*wdata
, const __u8
*payload
)
1500 handler_keys(wdata
, payload
);
1502 wdata
->state
.accel_split
[1] |= (payload
[0] >> 5) & (0x01 | 0x02);
1503 wdata
->state
.accel_split
[1] |= (payload
[1] >> 3) & (0x04 | 0x08);
1507 buf
[2] = wdata
->state
.accel_split
[0];
1508 buf
[3] = payload
[2];
1509 buf
[4] = wdata
->state
.accel_split
[1];
1510 handler_accel(wdata
, buf
);
1512 ir_to_input2(wdata
, &payload
[3], false);
1513 ir_to_input3(wdata
, &payload
[12], false);
1516 struct wiiproto_handler
{
1519 void (*func
)(struct wiimote_data
*wdata
, const __u8
*payload
);
1522 static struct wiiproto_handler handlers
[] = {
1523 { .id
= WIIPROTO_REQ_STATUS
, .size
= 6, .func
= handler_status
},
1524 { .id
= WIIPROTO_REQ_STATUS
, .size
= 2, .func
= handler_status_K
},
1525 { .id
= WIIPROTO_REQ_DATA
, .size
= 21, .func
= handler_data
},
1526 { .id
= WIIPROTO_REQ_DATA
, .size
= 2, .func
= handler_generic_K
},
1527 { .id
= WIIPROTO_REQ_RETURN
, .size
= 4, .func
= handler_return
},
1528 { .id
= WIIPROTO_REQ_RETURN
, .size
= 2, .func
= handler_generic_K
},
1529 { .id
= WIIPROTO_REQ_DRM_K
, .size
= 2, .func
= handler_keys
},
1530 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 5, .func
= handler_drm_KA
},
1531 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 2, .func
= handler_generic_K
},
1532 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 10, .func
= handler_drm_KE
},
1533 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 2, .func
= handler_generic_K
},
1534 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 17, .func
= handler_drm_KAI
},
1535 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 2, .func
= handler_generic_K
},
1536 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 21, .func
= handler_drm_KEE
},
1537 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 2, .func
= handler_generic_K
},
1538 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 21, .func
= handler_drm_KAE
},
1539 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 2, .func
= handler_generic_K
},
1540 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 21, .func
= handler_drm_KIE
},
1541 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 2, .func
= handler_generic_K
},
1542 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 21, .func
= handler_drm_KAIE
},
1543 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 2, .func
= handler_generic_K
},
1544 { .id
= WIIPROTO_REQ_DRM_E
, .size
= 21, .func
= handler_drm_E
},
1545 { .id
= WIIPROTO_REQ_DRM_SKAI1
, .size
= 21, .func
= handler_drm_SKAI1
},
1546 { .id
= WIIPROTO_REQ_DRM_SKAI2
, .size
= 21, .func
= handler_drm_SKAI2
},
1550 static int wiimote_hid_event(struct hid_device
*hdev
, struct hid_report
*report
,
1551 u8
*raw_data
, int size
)
1553 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1554 struct wiiproto_handler
*h
;
1556 unsigned long flags
;
1561 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1563 for (i
= 0; handlers
[i
].id
; ++i
) {
1565 if (h
->id
== raw_data
[0] && h
->size
< size
) {
1566 h
->func(wdata
, &raw_data
[1]);
1571 if (!handlers
[i
].id
)
1572 hid_warn(hdev
, "Unhandled report %hhu size %d\n", raw_data
[0],
1575 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1580 static struct wiimote_data
*wiimote_create(struct hid_device
*hdev
)
1582 struct wiimote_data
*wdata
;
1584 wdata
= kzalloc(sizeof(*wdata
), GFP_KERNEL
);
1589 hid_set_drvdata(hdev
, wdata
);
1591 spin_lock_init(&wdata
->queue
.lock
);
1592 INIT_WORK(&wdata
->queue
.worker
, wiimote_queue_worker
);
1594 spin_lock_init(&wdata
->state
.lock
);
1595 init_completion(&wdata
->state
.ready
);
1596 mutex_init(&wdata
->state
.sync
);
1597 wdata
->state
.drm
= WIIPROTO_REQ_DRM_K
;
1598 wdata
->state
.cmd_battery
= 0xff;
1600 INIT_WORK(&wdata
->init_worker
, wiimote_init_worker
);
1601 setup_timer(&wdata
->timer
, wiimote_init_timeout
, (long)wdata
);
1606 static void wiimote_destroy(struct wiimote_data
*wdata
)
1608 unsigned long flags
;
1610 wiidebug_deinit(wdata
);
1612 /* prevent init_worker from being scheduled again */
1613 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1614 wdata
->state
.flags
|= WIIPROTO_FLAG_EXITING
;
1615 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1617 cancel_work_sync(&wdata
->init_worker
);
1618 del_timer_sync(&wdata
->timer
);
1620 wiimote_mp_unload(wdata
);
1621 wiimote_ext_unload(wdata
);
1622 wiimote_modules_unload(wdata
);
1623 cancel_work_sync(&wdata
->queue
.worker
);
1624 hid_hw_close(wdata
->hdev
);
1625 hid_hw_stop(wdata
->hdev
);
1630 static int wiimote_hid_probe(struct hid_device
*hdev
,
1631 const struct hid_device_id
*id
)
1633 struct wiimote_data
*wdata
;
1636 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
1638 wdata
= wiimote_create(hdev
);
1640 hid_err(hdev
, "Can't alloc device\n");
1644 ret
= hid_parse(hdev
);
1646 hid_err(hdev
, "HID parse failed\n");
1650 ret
= hid_hw_start(hdev
, HID_CONNECT_HIDRAW
);
1652 hid_err(hdev
, "HW start failed\n");
1656 ret
= hid_hw_open(hdev
);
1658 hid_err(hdev
, "cannot start hardware I/O\n");
1662 ret
= wiidebug_init(wdata
);
1666 hid_info(hdev
, "New device registered\n");
1668 /* schedule device detection */
1669 wiimote_schedule(wdata
);
1674 wiimote_destroy(wdata
);
1680 input_free_device(wdata
->ir
);
1681 input_free_device(wdata
->accel
);
1686 static void wiimote_hid_remove(struct hid_device
*hdev
)
1688 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1690 hid_info(hdev
, "Device removed\n");
1691 wiimote_destroy(wdata
);
1694 static const struct hid_device_id wiimote_hid_devices
[] = {
1695 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1696 USB_DEVICE_ID_NINTENDO_WIIMOTE
) },
1697 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1698 USB_DEVICE_ID_NINTENDO_WIIMOTE2
) },
1701 MODULE_DEVICE_TABLE(hid
, wiimote_hid_devices
);
1703 static struct hid_driver wiimote_hid_driver
= {
1705 .id_table
= wiimote_hid_devices
,
1706 .probe
= wiimote_hid_probe
,
1707 .remove
= wiimote_hid_remove
,
1708 .raw_event
= wiimote_hid_event
,
1710 module_hid_driver(wiimote_hid_driver
);
1712 MODULE_LICENSE("GPL");
1713 MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
1714 MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals");