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 static __u8
select_drm(struct wiimote_data
*wdata
)
185 __u8 ir
= wdata
->state
.flags
& WIIPROTO_FLAGS_IR
;
186 bool ext
= wiiext_active(wdata
);
188 if (ir
== WIIPROTO_FLAG_IR_BASIC
) {
189 if (wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
)
190 return WIIPROTO_REQ_DRM_KAIE
;
192 return WIIPROTO_REQ_DRM_KIE
;
193 } else if (ir
== WIIPROTO_FLAG_IR_EXT
) {
194 return WIIPROTO_REQ_DRM_KAI
;
195 } else if (ir
== WIIPROTO_FLAG_IR_FULL
) {
196 return WIIPROTO_REQ_DRM_SKAI1
;
198 if (wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
) {
200 return WIIPROTO_REQ_DRM_KAE
;
202 return WIIPROTO_REQ_DRM_KA
;
205 return WIIPROTO_REQ_DRM_KE
;
207 return WIIPROTO_REQ_DRM_K
;
212 void wiiproto_req_drm(struct wiimote_data
*wdata
, __u8 drm
)
216 if (drm
== WIIPROTO_REQ_NULL
)
217 drm
= select_drm(wdata
);
219 cmd
[0] = WIIPROTO_REQ_DRM
;
223 wdata
->state
.drm
= drm
;
224 wiiproto_keep_rumble(wdata
, &cmd
[1]);
225 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
228 void wiiproto_req_status(struct wiimote_data
*wdata
)
232 cmd
[0] = WIIPROTO_REQ_SREQ
;
235 wiiproto_keep_rumble(wdata
, &cmd
[1]);
236 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
239 void wiiproto_req_accel(struct wiimote_data
*wdata
, __u8 accel
)
242 if (accel
== !!(wdata
->state
.flags
& WIIPROTO_FLAG_ACCEL
))
246 wdata
->state
.flags
|= WIIPROTO_FLAG_ACCEL
;
248 wdata
->state
.flags
&= ~WIIPROTO_FLAG_ACCEL
;
250 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
253 static void wiiproto_req_ir1(struct wiimote_data
*wdata
, __u8 flags
)
257 cmd
[0] = WIIPROTO_REQ_IR1
;
260 wiiproto_keep_rumble(wdata
, &cmd
[1]);
261 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
264 static void wiiproto_req_ir2(struct wiimote_data
*wdata
, __u8 flags
)
268 cmd
[0] = WIIPROTO_REQ_IR2
;
271 wiiproto_keep_rumble(wdata
, &cmd
[1]);
272 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
275 #define wiiproto_req_wreg(wdata, os, buf, sz) \
276 wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
278 #define wiiproto_req_weeprom(wdata, os, buf, sz) \
279 wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
281 static void wiiproto_req_wmem(struct wiimote_data
*wdata
, bool eeprom
,
282 __u32 offset
, const __u8
*buf
, __u8 size
)
286 if (size
> 16 || size
== 0) {
287 hid_warn(wdata
->hdev
, "Invalid length %d wmem request\n", size
);
291 memset(cmd
, 0, sizeof(cmd
));
292 cmd
[0] = WIIPROTO_REQ_WMEM
;
293 cmd
[2] = (offset
>> 16) & 0xff;
294 cmd
[3] = (offset
>> 8) & 0xff;
295 cmd
[4] = offset
& 0xff;
297 memcpy(&cmd
[6], buf
, size
);
302 wiiproto_keep_rumble(wdata
, &cmd
[1]);
303 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
306 void wiiproto_req_rmem(struct wiimote_data
*wdata
, bool eeprom
, __u32 offset
,
312 hid_warn(wdata
->hdev
, "Invalid length %d rmem request\n", size
);
316 cmd
[0] = WIIPROTO_REQ_RMEM
;
318 cmd
[2] = (offset
>> 16) & 0xff;
319 cmd
[3] = (offset
>> 8) & 0xff;
320 cmd
[4] = offset
& 0xff;
321 cmd
[5] = (size
>> 8) & 0xff;
322 cmd
[6] = size
& 0xff;
327 wiiproto_keep_rumble(wdata
, &cmd
[1]);
328 wiimote_queue(wdata
, cmd
, sizeof(cmd
));
331 /* requries the cmd-mutex to be held */
332 int wiimote_cmd_write(struct wiimote_data
*wdata
, __u32 offset
,
333 const __u8
*wmem
, __u8 size
)
338 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
339 wiimote_cmd_set(wdata
, WIIPROTO_REQ_WMEM
, 0);
340 wiiproto_req_wreg(wdata
, offset
, wmem
, size
);
341 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
343 ret
= wiimote_cmd_wait(wdata
);
344 if (!ret
&& wdata
->state
.cmd_err
)
350 /* requries the cmd-mutex to be held */
351 ssize_t
wiimote_cmd_read(struct wiimote_data
*wdata
, __u32 offset
, __u8
*rmem
,
357 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
358 wdata
->state
.cmd_read_size
= size
;
359 wdata
->state
.cmd_read_buf
= rmem
;
360 wiimote_cmd_set(wdata
, WIIPROTO_REQ_RMEM
, offset
& 0xffff);
361 wiiproto_req_rreg(wdata
, offset
, size
);
362 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
364 ret
= wiimote_cmd_wait(wdata
);
366 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
367 wdata
->state
.cmd_read_buf
= NULL
;
368 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
371 if (wdata
->state
.cmd_read_size
== 0)
374 ret
= wdata
->state
.cmd_read_size
;
380 /* requires the cmd-mutex to be held */
381 static int wiimote_cmd_init_ext(struct wiimote_data
*wdata
)
386 /* initialize extension */
388 ret
= wiimote_cmd_write(wdata
, 0xa400f0, &wmem
, sizeof(wmem
));
392 /* disable default encryption */
394 ret
= wiimote_cmd_write(wdata
, 0xa400fb, &wmem
, sizeof(wmem
));
401 /* requires the cmd-mutex to be held */
402 static __u8
wiimote_cmd_read_ext(struct wiimote_data
*wdata
)
407 /* read extension ID */
408 ret
= wiimote_cmd_read(wdata
, 0xa400fa, rmem
, 6);
410 return WIIMOTE_EXT_NONE
;
412 if (rmem
[0] == 0xff && rmem
[1] == 0xff && rmem
[2] == 0xff &&
413 rmem
[3] == 0xff && rmem
[4] == 0xff && rmem
[5] == 0xff)
414 return WIIMOTE_EXT_NONE
;
416 return WIIMOTE_EXT_UNKNOWN
;
419 static int wiimote_init_ir(struct wiimote_data
*wdata
, __u16 mode
)
424 static const __u8 data_enable
[] = { 0x01 };
425 static const __u8 data_sens1
[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
426 0x00, 0xaa, 0x00, 0x64 };
427 static const __u8 data_sens2
[] = { 0x63, 0x03 };
428 static const __u8 data_fin
[] = { 0x08 };
430 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
432 if (mode
== (wdata
->state
.flags
& WIIPROTO_FLAGS_IR
)) {
433 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
438 wdata
->state
.flags
&= ~WIIPROTO_FLAGS_IR
;
439 wiiproto_req_ir1(wdata
, 0);
440 wiiproto_req_ir2(wdata
, 0);
441 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
442 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
446 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
448 ret
= wiimote_cmd_acquire(wdata
);
452 /* send PIXEL CLOCK ENABLE cmd first */
453 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
454 wiimote_cmd_set(wdata
, WIIPROTO_REQ_IR1
, 0);
455 wiiproto_req_ir1(wdata
, 0x06);
456 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
458 ret
= wiimote_cmd_wait(wdata
);
461 if (wdata
->state
.cmd_err
) {
466 /* enable IR LOGIC */
467 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
468 wiimote_cmd_set(wdata
, WIIPROTO_REQ_IR2
, 0);
469 wiiproto_req_ir2(wdata
, 0x06);
470 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
472 ret
= wiimote_cmd_wait(wdata
);
475 if (wdata
->state
.cmd_err
) {
480 /* enable IR cam but do not make it send data, yet */
481 ret
= wiimote_cmd_write(wdata
, 0xb00030, data_enable
,
482 sizeof(data_enable
));
486 /* write first sensitivity block */
487 ret
= wiimote_cmd_write(wdata
, 0xb00000, data_sens1
,
492 /* write second sensitivity block */
493 ret
= wiimote_cmd_write(wdata
, 0xb0001a, data_sens2
,
498 /* put IR cam into desired state */
500 case WIIPROTO_FLAG_IR_FULL
:
503 case WIIPROTO_FLAG_IR_EXT
:
506 case WIIPROTO_FLAG_IR_BASIC
:
510 ret
= wiimote_cmd_write(wdata
, 0xb00033, &format
, sizeof(format
));
514 /* make IR cam send data */
515 ret
= wiimote_cmd_write(wdata
, 0xb00030, data_fin
, sizeof(data_fin
));
519 /* request new DRM mode compatible to IR mode */
520 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
521 wdata
->state
.flags
&= ~WIIPROTO_FLAGS_IR
;
522 wdata
->state
.flags
|= mode
& WIIPROTO_FLAGS_IR
;
523 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
524 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
527 wiimote_cmd_release(wdata
);
531 static int wiimote_ir_open(struct input_dev
*dev
)
533 struct wiimote_data
*wdata
= input_get_drvdata(dev
);
535 return wiimote_init_ir(wdata
, WIIPROTO_FLAG_IR_BASIC
);
538 static void wiimote_ir_close(struct input_dev
*dev
)
540 struct wiimote_data
*wdata
= input_get_drvdata(dev
);
542 wiimote_init_ir(wdata
, 0);
545 /* device module handling */
547 static const __u8
* const wiimote_devtype_mods
[WIIMOTE_DEV_NUM
] = {
548 [WIIMOTE_DEV_PENDING
] = (const __u8
[]){
551 [WIIMOTE_DEV_UNKNOWN
] = (const __u8
[]){
554 [WIIMOTE_DEV_GENERIC
] = (const __u8
[]){
565 [WIIMOTE_DEV_GEN10
] = (const __u8
[]){
576 [WIIMOTE_DEV_GEN20
] = (const __u8
[]){
589 static void wiimote_modules_load(struct wiimote_data
*wdata
,
590 unsigned int devtype
)
592 bool need_input
= false;
593 const __u8
*mods
, *iter
;
594 const struct wiimod_ops
*ops
;
597 mods
= wiimote_devtype_mods
[devtype
];
599 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
600 if (wiimod_table
[*iter
]->flags
& WIIMOD_FLAG_INPUT
) {
607 wdata
->input
= input_allocate_device();
611 input_set_drvdata(wdata
->input
, wdata
);
612 wdata
->input
->dev
.parent
= &wdata
->hdev
->dev
;
613 wdata
->input
->id
.bustype
= wdata
->hdev
->bus
;
614 wdata
->input
->id
.vendor
= wdata
->hdev
->vendor
;
615 wdata
->input
->id
.product
= wdata
->hdev
->product
;
616 wdata
->input
->id
.version
= wdata
->hdev
->version
;
617 wdata
->input
->name
= WIIMOTE_NAME
;
620 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
621 ops
= wiimod_table
[*iter
];
625 ret
= ops
->probe(ops
, wdata
);
631 ret
= input_register_device(wdata
->input
);
636 spin_lock_irq(&wdata
->state
.lock
);
637 wdata
->state
.devtype
= devtype
;
638 spin_unlock_irq(&wdata
->state
.lock
);
642 for ( ; iter
-- != mods
; ) {
643 ops
= wiimod_table
[*iter
];
645 ops
->remove(ops
, wdata
);
649 input_free_device(wdata
->input
);
654 static void wiimote_modules_unload(struct wiimote_data
*wdata
)
656 const __u8
*mods
, *iter
;
657 const struct wiimod_ops
*ops
;
660 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
662 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
663 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
664 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
666 /* find end of list */
667 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
)
671 input_get_device(wdata
->input
);
672 input_unregister_device(wdata
->input
);
675 for ( ; iter
-- != mods
; ) {
676 ops
= wiimod_table
[*iter
];
678 ops
->remove(ops
, wdata
);
682 input_put_device(wdata
->input
);
687 /* device (re-)initialization and detection */
689 static const char *wiimote_devtype_names
[WIIMOTE_DEV_NUM
] = {
690 [WIIMOTE_DEV_PENDING
] = "Pending",
691 [WIIMOTE_DEV_UNKNOWN
] = "Unknown",
692 [WIIMOTE_DEV_GENERIC
] = "Generic",
693 [WIIMOTE_DEV_GEN10
] = "Nintendo Wii Remote (Gen 1)",
694 [WIIMOTE_DEV_GEN20
] = "Nintendo Wii Remote Plus (Gen 2)",
697 /* Try to guess the device type based on all collected information. We
698 * first try to detect by static extension types, then VID/PID and the
699 * device name. If we cannot detect the device, we use
700 * WIIMOTE_DEV_GENERIC so all modules will get probed on the device. */
701 static void wiimote_init_set_type(struct wiimote_data
*wdata
,
704 __u8 devtype
= WIIMOTE_DEV_GENERIC
;
705 __u16 vendor
, product
;
708 vendor
= wdata
->hdev
->vendor
;
709 product
= wdata
->hdev
->product
;
710 name
= wdata
->hdev
->name
;
712 if (!strcmp(name
, "Nintendo RVL-CNT-01")) {
713 devtype
= WIIMOTE_DEV_GEN10
;
715 } else if (!strcmp(name
, "Nintendo RVL-CNT-01-TR")) {
716 devtype
= WIIMOTE_DEV_GEN20
;
720 if (vendor
== USB_VENDOR_ID_NINTENDO
) {
721 if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE
) {
722 devtype
= WIIMOTE_DEV_GEN10
;
724 } else if (product
== USB_DEVICE_ID_NINTENDO_WIIMOTE2
) {
725 devtype
= WIIMOTE_DEV_GEN20
;
731 if (devtype
== WIIMOTE_DEV_GENERIC
)
732 hid_info(wdata
->hdev
, "cannot detect device; NAME: %s VID: %04x PID: %04x EXT: %04x\n",
733 name
, vendor
, product
, exttype
);
735 hid_info(wdata
->hdev
, "detected device: %s\n",
736 wiimote_devtype_names
[devtype
]);
738 wiimote_modules_load(wdata
, devtype
);
741 static void wiimote_init_detect(struct wiimote_data
*wdata
)
743 __u8 exttype
= WIIMOTE_EXT_NONE
;
747 wiimote_cmd_acquire_noint(wdata
);
749 spin_lock_irq(&wdata
->state
.lock
);
750 wdata
->state
.devtype
= WIIMOTE_DEV_UNKNOWN
;
751 wiimote_cmd_set(wdata
, WIIPROTO_REQ_SREQ
, 0);
752 wiiproto_req_status(wdata
);
753 spin_unlock_irq(&wdata
->state
.lock
);
755 ret
= wiimote_cmd_wait_noint(wdata
);
759 spin_lock_irq(&wdata
->state
.lock
);
760 ext
= wdata
->state
.flags
& WIIPROTO_FLAG_EXT_PLUGGED
;
761 spin_unlock_irq(&wdata
->state
.lock
);
766 wiimote_cmd_init_ext(wdata
);
767 exttype
= wiimote_cmd_read_ext(wdata
);
770 wiimote_cmd_release(wdata
);
771 wiimote_init_set_type(wdata
, exttype
);
774 static void wiimote_init_worker(struct work_struct
*work
)
776 struct wiimote_data
*wdata
= container_of(work
, struct wiimote_data
,
779 if (wdata
->state
.devtype
== WIIMOTE_DEV_PENDING
)
780 wiimote_init_detect(wdata
);
783 /* protocol handlers */
785 static void handler_keys(struct wiimote_data
*wdata
, const __u8
*payload
)
787 const __u8
*iter
, *mods
;
788 const struct wiimod_ops
*ops
;
790 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
791 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
792 ops
= wiimod_table
[*iter
];
794 ops
->in_keys(wdata
, payload
);
800 static void handler_accel(struct wiimote_data
*wdata
, const __u8
*payload
)
802 const __u8
*iter
, *mods
;
803 const struct wiimod_ops
*ops
;
805 mods
= wiimote_devtype_mods
[wdata
->state
.devtype
];
806 for (iter
= mods
; *iter
!= WIIMOD_NULL
; ++iter
) {
807 ops
= wiimod_table
[*iter
];
809 ops
->in_accel(wdata
, payload
);
815 #define ir_to_input0(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
816 ABS_HAT0X, ABS_HAT0Y)
817 #define ir_to_input1(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
818 ABS_HAT1X, ABS_HAT1Y)
819 #define ir_to_input2(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
820 ABS_HAT2X, ABS_HAT2Y)
821 #define ir_to_input3(wdata, ir, packed) __ir_to_input((wdata), (ir), (packed), \
822 ABS_HAT3X, ABS_HAT3Y)
824 static void __ir_to_input(struct wiimote_data
*wdata
, const __u8
*ir
,
825 bool packed
, __u8 xid
, __u8 yid
)
829 if (!(wdata
->state
.flags
& WIIPROTO_FLAGS_IR
))
833 * Basic IR data is encoded into 3 bytes. The first two bytes are the
834 * lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
836 * If data is packed, then the 3rd byte is put first and slightly
837 * reordered. This allows to interleave packed and non-packed data to
838 * have two IR sets in 5 bytes instead of 6.
839 * The resulting 10bit X/Y values are passed to the ABS_HATXY input dev.
843 x
= ir
[1] | ((ir
[0] & 0x03) << 8);
844 y
= ir
[2] | ((ir
[0] & 0x0c) << 6);
846 x
= ir
[0] | ((ir
[2] & 0x30) << 4);
847 y
= ir
[1] | ((ir
[2] & 0xc0) << 2);
850 input_report_abs(wdata
->ir
, xid
, x
);
851 input_report_abs(wdata
->ir
, yid
, y
);
854 /* reduced status report with "BB BB" key data only */
855 static void handler_status_K(struct wiimote_data
*wdata
,
858 handler_keys(wdata
, payload
);
860 /* on status reports the drm is reset so we need to resend the drm */
861 wiiproto_req_drm(wdata
, WIIPROTO_REQ_NULL
);
864 /* extended status report with "BB BB LF 00 00 VV" data */
865 static void handler_status(struct wiimote_data
*wdata
, const __u8
*payload
)
867 handler_status_K(wdata
, payload
);
869 /* update extension status */
870 if (payload
[2] & 0x02) {
871 wdata
->state
.flags
|= WIIPROTO_FLAG_EXT_PLUGGED
;
872 wiiext_event(wdata
, true);
874 wdata
->state
.flags
&= ~WIIPROTO_FLAG_EXT_PLUGGED
;
875 wiiext_event(wdata
, false);
878 wdata
->state
.cmd_battery
= payload
[5];
879 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_SREQ
, 0))
880 wiimote_cmd_complete(wdata
);
883 /* reduced generic report with "BB BB" key data only */
884 static void handler_generic_K(struct wiimote_data
*wdata
, const __u8
*payload
)
886 handler_keys(wdata
, payload
);
889 static void handler_data(struct wiimote_data
*wdata
, const __u8
*payload
)
891 __u16 offset
= payload
[3] << 8 | payload
[4];
892 __u8 size
= (payload
[2] >> 4) + 1;
893 __u8 err
= payload
[2] & 0x0f;
895 handler_keys(wdata
, payload
);
897 if (wiimote_cmd_pending(wdata
, WIIPROTO_REQ_RMEM
, offset
)) {
900 else if (size
> wdata
->state
.cmd_read_size
)
901 size
= wdata
->state
.cmd_read_size
;
903 wdata
->state
.cmd_read_size
= size
;
904 if (wdata
->state
.cmd_read_buf
)
905 memcpy(wdata
->state
.cmd_read_buf
, &payload
[5], size
);
906 wiimote_cmd_complete(wdata
);
910 static void handler_return(struct wiimote_data
*wdata
, const __u8
*payload
)
912 __u8 err
= payload
[3];
913 __u8 cmd
= payload
[2];
915 handler_keys(wdata
, payload
);
917 if (wiimote_cmd_pending(wdata
, cmd
, 0)) {
918 wdata
->state
.cmd_err
= err
;
919 wiimote_cmd_complete(wdata
);
921 hid_warn(wdata
->hdev
, "Remote error %hhu on req %hhu\n", err
,
926 static void handler_drm_KA(struct wiimote_data
*wdata
, const __u8
*payload
)
928 handler_keys(wdata
, payload
);
929 handler_accel(wdata
, payload
);
932 static void handler_drm_KE(struct wiimote_data
*wdata
, const __u8
*payload
)
934 handler_keys(wdata
, payload
);
935 wiiext_handle(wdata
, &payload
[2]);
938 static void handler_drm_KAI(struct wiimote_data
*wdata
, const __u8
*payload
)
940 handler_keys(wdata
, payload
);
941 handler_accel(wdata
, payload
);
942 ir_to_input0(wdata
, &payload
[5], false);
943 ir_to_input1(wdata
, &payload
[8], false);
944 ir_to_input2(wdata
, &payload
[11], false);
945 ir_to_input3(wdata
, &payload
[14], false);
946 input_sync(wdata
->ir
);
949 static void handler_drm_KEE(struct wiimote_data
*wdata
, const __u8
*payload
)
951 handler_keys(wdata
, payload
);
952 wiiext_handle(wdata
, &payload
[2]);
955 static void handler_drm_KIE(struct wiimote_data
*wdata
, const __u8
*payload
)
957 handler_keys(wdata
, payload
);
958 ir_to_input0(wdata
, &payload
[2], false);
959 ir_to_input1(wdata
, &payload
[4], true);
960 ir_to_input2(wdata
, &payload
[7], false);
961 ir_to_input3(wdata
, &payload
[9], true);
962 input_sync(wdata
->ir
);
963 wiiext_handle(wdata
, &payload
[12]);
966 static void handler_drm_KAE(struct wiimote_data
*wdata
, const __u8
*payload
)
968 handler_keys(wdata
, payload
);
969 handler_accel(wdata
, payload
);
970 wiiext_handle(wdata
, &payload
[5]);
973 static void handler_drm_KAIE(struct wiimote_data
*wdata
, const __u8
*payload
)
975 handler_keys(wdata
, payload
);
976 handler_accel(wdata
, payload
);
977 ir_to_input0(wdata
, &payload
[5], false);
978 ir_to_input1(wdata
, &payload
[7], true);
979 ir_to_input2(wdata
, &payload
[10], false);
980 ir_to_input3(wdata
, &payload
[12], true);
981 input_sync(wdata
->ir
);
982 wiiext_handle(wdata
, &payload
[15]);
985 static void handler_drm_E(struct wiimote_data
*wdata
, const __u8
*payload
)
987 wiiext_handle(wdata
, payload
);
990 static void handler_drm_SKAI1(struct wiimote_data
*wdata
, const __u8
*payload
)
992 handler_keys(wdata
, payload
);
994 wdata
->state
.accel_split
[0] = payload
[2];
995 wdata
->state
.accel_split
[1] = (payload
[0] >> 1) & (0x10 | 0x20);
996 wdata
->state
.accel_split
[1] |= (payload
[1] << 1) & (0x40 | 0x80);
998 ir_to_input0(wdata
, &payload
[3], false);
999 ir_to_input1(wdata
, &payload
[12], false);
1000 input_sync(wdata
->ir
);
1003 static void handler_drm_SKAI2(struct wiimote_data
*wdata
, const __u8
*payload
)
1007 handler_keys(wdata
, payload
);
1009 wdata
->state
.accel_split
[1] |= (payload
[0] >> 5) & (0x01 | 0x02);
1010 wdata
->state
.accel_split
[1] |= (payload
[1] >> 3) & (0x04 | 0x08);
1014 buf
[2] = wdata
->state
.accel_split
[0];
1015 buf
[3] = payload
[2];
1016 buf
[4] = wdata
->state
.accel_split
[1];
1017 handler_accel(wdata
, buf
);
1019 ir_to_input2(wdata
, &payload
[3], false);
1020 ir_to_input3(wdata
, &payload
[12], false);
1021 input_sync(wdata
->ir
);
1024 struct wiiproto_handler
{
1027 void (*func
)(struct wiimote_data
*wdata
, const __u8
*payload
);
1030 static struct wiiproto_handler handlers
[] = {
1031 { .id
= WIIPROTO_REQ_STATUS
, .size
= 6, .func
= handler_status
},
1032 { .id
= WIIPROTO_REQ_STATUS
, .size
= 2, .func
= handler_status_K
},
1033 { .id
= WIIPROTO_REQ_DATA
, .size
= 21, .func
= handler_data
},
1034 { .id
= WIIPROTO_REQ_DATA
, .size
= 2, .func
= handler_generic_K
},
1035 { .id
= WIIPROTO_REQ_RETURN
, .size
= 4, .func
= handler_return
},
1036 { .id
= WIIPROTO_REQ_RETURN
, .size
= 2, .func
= handler_generic_K
},
1037 { .id
= WIIPROTO_REQ_DRM_K
, .size
= 2, .func
= handler_keys
},
1038 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 5, .func
= handler_drm_KA
},
1039 { .id
= WIIPROTO_REQ_DRM_KA
, .size
= 2, .func
= handler_generic_K
},
1040 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 10, .func
= handler_drm_KE
},
1041 { .id
= WIIPROTO_REQ_DRM_KE
, .size
= 2, .func
= handler_generic_K
},
1042 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 17, .func
= handler_drm_KAI
},
1043 { .id
= WIIPROTO_REQ_DRM_KAI
, .size
= 2, .func
= handler_generic_K
},
1044 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 21, .func
= handler_drm_KEE
},
1045 { .id
= WIIPROTO_REQ_DRM_KEE
, .size
= 2, .func
= handler_generic_K
},
1046 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 21, .func
= handler_drm_KAE
},
1047 { .id
= WIIPROTO_REQ_DRM_KAE
, .size
= 2, .func
= handler_generic_K
},
1048 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 21, .func
= handler_drm_KIE
},
1049 { .id
= WIIPROTO_REQ_DRM_KIE
, .size
= 2, .func
= handler_generic_K
},
1050 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 21, .func
= handler_drm_KAIE
},
1051 { .id
= WIIPROTO_REQ_DRM_KAIE
, .size
= 2, .func
= handler_generic_K
},
1052 { .id
= WIIPROTO_REQ_DRM_E
, .size
= 21, .func
= handler_drm_E
},
1053 { .id
= WIIPROTO_REQ_DRM_SKAI1
, .size
= 21, .func
= handler_drm_SKAI1
},
1054 { .id
= WIIPROTO_REQ_DRM_SKAI2
, .size
= 21, .func
= handler_drm_SKAI2
},
1058 static int wiimote_hid_event(struct hid_device
*hdev
, struct hid_report
*report
,
1059 u8
*raw_data
, int size
)
1061 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1062 struct wiiproto_handler
*h
;
1064 unsigned long flags
;
1069 spin_lock_irqsave(&wdata
->state
.lock
, flags
);
1071 for (i
= 0; handlers
[i
].id
; ++i
) {
1073 if (h
->id
== raw_data
[0] && h
->size
< size
) {
1074 h
->func(wdata
, &raw_data
[1]);
1079 if (!handlers
[i
].id
)
1080 hid_warn(hdev
, "Unhandled report %hhu size %d\n", raw_data
[0],
1083 spin_unlock_irqrestore(&wdata
->state
.lock
, flags
);
1088 static struct wiimote_data
*wiimote_create(struct hid_device
*hdev
)
1090 struct wiimote_data
*wdata
;
1092 wdata
= kzalloc(sizeof(*wdata
), GFP_KERNEL
);
1097 hid_set_drvdata(hdev
, wdata
);
1099 wdata
->ir
= input_allocate_device();
1103 input_set_drvdata(wdata
->ir
, wdata
);
1104 wdata
->ir
->open
= wiimote_ir_open
;
1105 wdata
->ir
->close
= wiimote_ir_close
;
1106 wdata
->ir
->dev
.parent
= &wdata
->hdev
->dev
;
1107 wdata
->ir
->id
.bustype
= wdata
->hdev
->bus
;
1108 wdata
->ir
->id
.vendor
= wdata
->hdev
->vendor
;
1109 wdata
->ir
->id
.product
= wdata
->hdev
->product
;
1110 wdata
->ir
->id
.version
= wdata
->hdev
->version
;
1111 wdata
->ir
->name
= WIIMOTE_NAME
" IR";
1113 set_bit(EV_ABS
, wdata
->ir
->evbit
);
1114 set_bit(ABS_HAT0X
, wdata
->ir
->absbit
);
1115 set_bit(ABS_HAT0Y
, wdata
->ir
->absbit
);
1116 set_bit(ABS_HAT1X
, wdata
->ir
->absbit
);
1117 set_bit(ABS_HAT1Y
, wdata
->ir
->absbit
);
1118 set_bit(ABS_HAT2X
, wdata
->ir
->absbit
);
1119 set_bit(ABS_HAT2Y
, wdata
->ir
->absbit
);
1120 set_bit(ABS_HAT3X
, wdata
->ir
->absbit
);
1121 set_bit(ABS_HAT3Y
, wdata
->ir
->absbit
);
1122 input_set_abs_params(wdata
->ir
, ABS_HAT0X
, 0, 1023, 2, 4);
1123 input_set_abs_params(wdata
->ir
, ABS_HAT0Y
, 0, 767, 2, 4);
1124 input_set_abs_params(wdata
->ir
, ABS_HAT1X
, 0, 1023, 2, 4);
1125 input_set_abs_params(wdata
->ir
, ABS_HAT1Y
, 0, 767, 2, 4);
1126 input_set_abs_params(wdata
->ir
, ABS_HAT2X
, 0, 1023, 2, 4);
1127 input_set_abs_params(wdata
->ir
, ABS_HAT2Y
, 0, 767, 2, 4);
1128 input_set_abs_params(wdata
->ir
, ABS_HAT3X
, 0, 1023, 2, 4);
1129 input_set_abs_params(wdata
->ir
, ABS_HAT3Y
, 0, 767, 2, 4);
1131 spin_lock_init(&wdata
->queue
.lock
);
1132 INIT_WORK(&wdata
->queue
.worker
, wiimote_queue_worker
);
1134 spin_lock_init(&wdata
->state
.lock
);
1135 init_completion(&wdata
->state
.ready
);
1136 mutex_init(&wdata
->state
.sync
);
1137 wdata
->state
.drm
= WIIPROTO_REQ_DRM_K
;
1138 wdata
->state
.cmd_battery
= 0xff;
1140 INIT_WORK(&wdata
->init_worker
, wiimote_init_worker
);
1149 static void wiimote_destroy(struct wiimote_data
*wdata
)
1151 wiidebug_deinit(wdata
);
1152 wiiext_deinit(wdata
);
1154 cancel_work_sync(&wdata
->init_worker
);
1155 wiimote_modules_unload(wdata
);
1156 input_unregister_device(wdata
->ir
);
1157 cancel_work_sync(&wdata
->queue
.worker
);
1158 hid_hw_close(wdata
->hdev
);
1159 hid_hw_stop(wdata
->hdev
);
1164 static int wiimote_hid_probe(struct hid_device
*hdev
,
1165 const struct hid_device_id
*id
)
1167 struct wiimote_data
*wdata
;
1170 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
1172 wdata
= wiimote_create(hdev
);
1174 hid_err(hdev
, "Can't alloc device\n");
1178 ret
= hid_parse(hdev
);
1180 hid_err(hdev
, "HID parse failed\n");
1184 ret
= hid_hw_start(hdev
, HID_CONNECT_HIDRAW
);
1186 hid_err(hdev
, "HW start failed\n");
1190 ret
= hid_hw_open(hdev
);
1192 hid_err(hdev
, "cannot start hardware I/O\n");
1196 ret
= input_register_device(wdata
->ir
);
1198 hid_err(hdev
, "Cannot register input device\n");
1202 ret
= wiiext_init(wdata
);
1206 ret
= wiidebug_init(wdata
);
1210 hid_info(hdev
, "New device registered\n");
1212 /* schedule device detection */
1213 schedule_work(&wdata
->init_worker
);
1218 wiimote_destroy(wdata
);
1226 input_free_device(wdata
->ir
);
1227 input_free_device(wdata
->accel
);
1232 static void wiimote_hid_remove(struct hid_device
*hdev
)
1234 struct wiimote_data
*wdata
= hid_get_drvdata(hdev
);
1236 hid_info(hdev
, "Device removed\n");
1237 wiimote_destroy(wdata
);
1240 static const struct hid_device_id wiimote_hid_devices
[] = {
1241 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1242 USB_DEVICE_ID_NINTENDO_WIIMOTE
) },
1243 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO
,
1244 USB_DEVICE_ID_NINTENDO_WIIMOTE2
) },
1247 MODULE_DEVICE_TABLE(hid
, wiimote_hid_devices
);
1249 static struct hid_driver wiimote_hid_driver
= {
1251 .id_table
= wiimote_hid_devices
,
1252 .probe
= wiimote_hid_probe
,
1253 .remove
= wiimote_hid_remove
,
1254 .raw_event
= wiimote_hid_event
,
1256 module_hid_driver(wiimote_hid_driver
);
1258 MODULE_LICENSE("GPL");
1259 MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
1260 MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals");