1 #ifndef __HID_WIIMOTE_H
2 #define __HID_WIIMOTE_H
5 * HID driver for Nintendo Wii / Wii U peripherals
6 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; either version 2 of the License, or (at your option)
16 #include <linux/completion.h>
17 #include <linux/device.h>
18 #include <linux/hid.h>
19 #include <linux/input.h>
20 #include <linux/leds.h>
21 #include <linux/module.h>
22 #include <linux/mutex.h>
23 #include <linux/power_supply.h>
24 #include <linux/spinlock.h>
25 #include <linux/timer.h>
27 #define WIIMOTE_NAME "Nintendo Wii Remote"
28 #define WIIMOTE_BUFSIZE 32
30 #define WIIPROTO_FLAG_LED1 0x01
31 #define WIIPROTO_FLAG_LED2 0x02
32 #define WIIPROTO_FLAG_LED3 0x04
33 #define WIIPROTO_FLAG_LED4 0x08
34 #define WIIPROTO_FLAG_RUMBLE 0x10
35 #define WIIPROTO_FLAG_ACCEL 0x20
36 #define WIIPROTO_FLAG_IR_BASIC 0x40
37 #define WIIPROTO_FLAG_IR_EXT 0x80
38 #define WIIPROTO_FLAG_IR_FULL 0xc0 /* IR_BASIC | IR_EXT */
39 #define WIIPROTO_FLAG_EXT_PLUGGED 0x0100
40 #define WIIPROTO_FLAG_EXT_USED 0x0200
41 #define WIIPROTO_FLAG_EXT_ACTIVE 0x0400
42 #define WIIPROTO_FLAG_MP_PLUGGED 0x0800
43 #define WIIPROTO_FLAG_MP_USED 0x1000
44 #define WIIPROTO_FLAG_MP_ACTIVE 0x2000
45 #define WIIPROTO_FLAG_EXITING 0x4000
46 #define WIIPROTO_FLAG_DRM_LOCKED 0x8000
47 #define WIIPROTO_FLAG_BUILTIN_MP 0x010000
48 #define WIIPROTO_FLAG_NO_MP 0x020000
49 #define WIIPROTO_FLAG_PRO_CALIB_DONE 0x040000
51 #define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
52 WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
53 #define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
54 WIIPROTO_FLAG_IR_FULL)
56 /* return flag for led \num */
57 #define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
74 enum wiimote_devtype {
80 WIIMOTE_DEV_BALANCE_BOARD,
81 WIIMOTE_DEV_PRO_CONTROLLER,
85 enum wiimote_exttype {
89 WIIMOTE_EXT_CLASSIC_CONTROLLER,
90 WIIMOTE_EXT_BALANCE_BOARD,
91 WIIMOTE_EXT_PRO_CONTROLLER,
99 WIIMOTE_MP_PASSTHROUGH_NUNCHUK,
100 WIIMOTE_MP_PASSTHROUGH_CLASSIC,
104 __u8 data[HID_MAX_BUFFER_SIZE];
108 struct wiimote_queue {
110 struct work_struct worker;
113 struct wiimote_buf outq[WIIMOTE_BUFSIZE];
116 struct wiimote_state {
125 /* synchronous cmd requests */
127 struct completion ready;
131 /* results of synchronous requests */
137 /* calibration/cache data */
138 __u16 calib_bboard[4][3];
139 __s16 calib_pro_sticks[4];
143 struct wiimote_data {
144 struct hid_device *hdev;
145 struct input_dev *input;
146 struct work_struct rumble_worker;
147 struct led_classdev *leds[4];
148 struct input_dev *accel;
149 struct input_dev *ir;
150 struct power_supply *battery;
151 struct power_supply_desc battery_desc;
152 struct input_dev *mp;
153 struct timer_list timer;
154 struct wiimote_debug *debug;
157 struct input_dev *input;
160 struct wiimote_queue queue;
161 struct wiimote_state state;
162 struct work_struct init_worker;
165 /* wiimote modules */
180 WIIMOD_NULL = WIIMOD_NUM,
183 #define WIIMOD_FLAG_INPUT 0x0001
184 #define WIIMOD_FLAG_EXT8 0x0002
185 #define WIIMOD_FLAG_EXT16 0x0004
190 int (*probe) (const struct wiimod_ops *ops,
191 struct wiimote_data *wdata);
192 void (*remove) (const struct wiimod_ops *ops,
193 struct wiimote_data *wdata);
195 void (*in_keys) (struct wiimote_data *wdata, const __u8 *keys);
196 void (*in_accel) (struct wiimote_data *wdata, const __u8 *accel);
197 void (*in_ir) (struct wiimote_data *wdata, const __u8 *ir, bool packed,
199 void (*in_mp) (struct wiimote_data *wdata, const __u8 *mp);
200 void (*in_ext) (struct wiimote_data *wdata, const __u8 *ext);
203 extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM];
204 extern const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM];
205 extern const struct wiimod_ops wiimod_mp;
207 /* wiimote requests */
210 WIIPROTO_REQ_NULL = 0x0,
211 WIIPROTO_REQ_RUMBLE = 0x10,
212 WIIPROTO_REQ_LED = 0x11,
213 WIIPROTO_REQ_DRM = 0x12,
214 WIIPROTO_REQ_IR1 = 0x13,
215 WIIPROTO_REQ_SREQ = 0x15,
216 WIIPROTO_REQ_WMEM = 0x16,
217 WIIPROTO_REQ_RMEM = 0x17,
218 WIIPROTO_REQ_IR2 = 0x1a,
219 WIIPROTO_REQ_STATUS = 0x20,
220 WIIPROTO_REQ_DATA = 0x21,
221 WIIPROTO_REQ_RETURN = 0x22,
224 WIIPROTO_REQ_DRM_K = 0x30,
226 /* DRM_KA: BB*2 AA*3 */
227 WIIPROTO_REQ_DRM_KA = 0x31,
229 /* DRM_KE: BB*2 EE*8 */
230 WIIPROTO_REQ_DRM_KE = 0x32,
232 /* DRM_KAI: BB*2 AA*3 II*12 */
233 WIIPROTO_REQ_DRM_KAI = 0x33,
235 /* DRM_KEE: BB*2 EE*19 */
236 WIIPROTO_REQ_DRM_KEE = 0x34,
238 /* DRM_KAE: BB*2 AA*3 EE*16 */
239 WIIPROTO_REQ_DRM_KAE = 0x35,
241 /* DRM_KIE: BB*2 II*10 EE*9 */
242 WIIPROTO_REQ_DRM_KIE = 0x36,
244 /* DRM_KAIE: BB*2 AA*3 II*10 EE*6 */
245 WIIPROTO_REQ_DRM_KAIE = 0x37,
248 WIIPROTO_REQ_DRM_E = 0x3d,
250 /* DRM_SKAI1: BB*2 AA*1 II*18 */
251 WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
253 /* DRM_SKAI2: BB*2 AA*1 II*18 */
254 WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
259 #define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
262 void __wiimote_schedule(struct wiimote_data *wdata);
264 extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
265 extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble);
266 extern void wiiproto_req_leds(struct wiimote_data *wdata, int leds);
267 extern void wiiproto_req_status(struct wiimote_data *wdata);
268 extern void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel);
269 extern void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags);
270 extern void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags);
271 extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
272 const __u8 *wmem, __u8 size);
273 extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
274 __u8 *rmem, __u8 size);
276 #define wiiproto_req_rreg(wdata, os, sz) \
277 wiiproto_req_rmem((wdata), false, (os), (sz))
278 #define wiiproto_req_reeprom(wdata, os, sz) \
279 wiiproto_req_rmem((wdata), true, (os), (sz))
280 extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
281 __u32 offset, __u16 size);
283 #ifdef CONFIG_DEBUG_FS
285 extern int wiidebug_init(struct wiimote_data *wdata);
286 extern void wiidebug_deinit(struct wiimote_data *wdata);
290 static inline int wiidebug_init(void *u) { return 0; }
291 static inline void wiidebug_deinit(void *u) { }
295 /* requires the state.lock spinlock to be held */
296 static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
299 return wdata->state.cmd == cmd && wdata->state.opt == opt;
302 /* requires the state.lock spinlock to be held */
303 static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
305 wdata->state.cmd = WIIPROTO_REQ_NULL;
306 complete(&wdata->state.ready);
309 /* requires the state.lock spinlock to be held */
310 static inline void wiimote_cmd_abort(struct wiimote_data *wdata)
312 /* Abort synchronous request by waking up the sleeping caller. But
313 * reset the state.cmd field to an invalid value so no further event
314 * handlers will work with it. */
315 wdata->state.cmd = WIIPROTO_REQ_MAX;
316 complete(&wdata->state.ready);
319 static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
321 return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
324 static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata)
326 mutex_lock(&wdata->state.sync);
329 /* requires the state.lock spinlock to be held */
330 static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
333 reinit_completion(&wdata->state.ready);
334 wdata->state.cmd = cmd;
335 wdata->state.opt = opt;
338 static inline void wiimote_cmd_release(struct wiimote_data *wdata)
340 mutex_unlock(&wdata->state.sync);
343 static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
347 /* The completion acts as implicit memory barrier so we can safely
348 * assume that state.cmd is set on success/failure and isn't accessed
349 * by any other thread, anymore. */
351 ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
356 else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
362 static inline int wiimote_cmd_wait_noint(struct wiimote_data *wdata)
366 /* no locking needed; see wiimote_cmd_wait() */
367 ret = wait_for_completion_timeout(&wdata->state.ready, HZ);
370 else if (wdata->state.cmd != WIIPROTO_REQ_NULL)