1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef __HID_WIIMOTE_H
3 #define __HID_WIIMOTE_H
6 * HID driver for Nintendo Wii / Wii U peripherals
7 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
13 #include <linux/completion.h>
14 #include <linux/device.h>
15 #include <linux/hid.h>
16 #include <linux/input.h>
17 #include <linux/leds.h>
18 #include <linux/module.h>
19 #include <linux/mutex.h>
20 #include <linux/power_supply.h>
21 #include <linux/spinlock.h>
22 #include <linux/timer.h>
24 #define WIIMOTE_NAME "Nintendo Wii Remote"
25 #define WIIMOTE_BUFSIZE 32
27 #define WIIPROTO_FLAG_LED1 0x01
28 #define WIIPROTO_FLAG_LED2 0x02
29 #define WIIPROTO_FLAG_LED3 0x04
30 #define WIIPROTO_FLAG_LED4 0x08
31 #define WIIPROTO_FLAG_RUMBLE 0x10
32 #define WIIPROTO_FLAG_ACCEL 0x20
33 #define WIIPROTO_FLAG_IR_BASIC 0x40
34 #define WIIPROTO_FLAG_IR_EXT 0x80
35 #define WIIPROTO_FLAG_IR_FULL 0xc0 /* IR_BASIC | IR_EXT */
36 #define WIIPROTO_FLAG_EXT_PLUGGED 0x0100
37 #define WIIPROTO_FLAG_EXT_USED 0x0200
38 #define WIIPROTO_FLAG_EXT_ACTIVE 0x0400
39 #define WIIPROTO_FLAG_MP_PLUGGED 0x0800
40 #define WIIPROTO_FLAG_MP_USED 0x1000
41 #define WIIPROTO_FLAG_MP_ACTIVE 0x2000
42 #define WIIPROTO_FLAG_EXITING 0x4000
43 #define WIIPROTO_FLAG_DRM_LOCKED 0x8000
44 #define WIIPROTO_FLAG_BUILTIN_MP 0x010000
45 #define WIIPROTO_FLAG_NO_MP 0x020000
46 #define WIIPROTO_FLAG_PRO_CALIB_DONE 0x040000
48 #define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
49 WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
50 #define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
51 WIIPROTO_FLAG_IR_FULL)
53 /* return flag for led \num */
54 #define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
71 enum wiimote_devtype {
77 WIIMOTE_DEV_BALANCE_BOARD,
78 WIIMOTE_DEV_PRO_CONTROLLER,
82 enum wiimote_exttype {
86 WIIMOTE_EXT_CLASSIC_CONTROLLER,
87 WIIMOTE_EXT_BALANCE_BOARD,
88 WIIMOTE_EXT_PRO_CONTROLLER,
91 WIIMOTE_EXT_TURNTABLE,
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];
140 __u8 pressure_drums[7];
144 struct wiimote_data {
145 struct hid_device *hdev;
146 struct input_dev *input;
147 struct work_struct rumble_worker;
148 struct led_classdev *leds[4];
149 struct input_dev *accel;
150 struct input_dev *ir;
151 struct power_supply *battery;
152 struct power_supply_desc battery_desc;
153 struct input_dev *mp;
154 struct timer_list timer;
155 struct wiimote_debug *debug;
158 struct input_dev *input;
161 struct wiimote_queue queue;
162 struct wiimote_state state;
163 struct work_struct init_worker;
166 extern bool wiimote_dpad_as_analog;
168 /* wiimote modules */
183 WIIMOD_NULL = WIIMOD_NUM,
186 #define WIIMOD_FLAG_INPUT 0x0001
187 #define WIIMOD_FLAG_EXT8 0x0002
188 #define WIIMOD_FLAG_EXT16 0x0004
193 int (*probe) (const struct wiimod_ops *ops,
194 struct wiimote_data *wdata);
195 void (*remove) (const struct wiimod_ops *ops,
196 struct wiimote_data *wdata);
198 void (*in_keys) (struct wiimote_data *wdata, const __u8 *keys);
199 void (*in_accel) (struct wiimote_data *wdata, const __u8 *accel);
200 void (*in_ir) (struct wiimote_data *wdata, const __u8 *ir, bool packed,
202 void (*in_mp) (struct wiimote_data *wdata, const __u8 *mp);
203 void (*in_ext) (struct wiimote_data *wdata, const __u8 *ext);
206 extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM];
207 extern const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM];
208 extern const struct wiimod_ops wiimod_mp;
210 /* wiimote requests */
213 WIIPROTO_REQ_NULL = 0x0,
214 WIIPROTO_REQ_RUMBLE = 0x10,
215 WIIPROTO_REQ_LED = 0x11,
216 WIIPROTO_REQ_DRM = 0x12,
217 WIIPROTO_REQ_IR1 = 0x13,
218 WIIPROTO_REQ_SREQ = 0x15,
219 WIIPROTO_REQ_WMEM = 0x16,
220 WIIPROTO_REQ_RMEM = 0x17,
221 WIIPROTO_REQ_IR2 = 0x1a,
222 WIIPROTO_REQ_STATUS = 0x20,
223 WIIPROTO_REQ_DATA = 0x21,
224 WIIPROTO_REQ_RETURN = 0x22,
227 WIIPROTO_REQ_DRM_K = 0x30,
229 /* DRM_KA: BB*2 AA*3 */
230 WIIPROTO_REQ_DRM_KA = 0x31,
232 /* DRM_KE: BB*2 EE*8 */
233 WIIPROTO_REQ_DRM_KE = 0x32,
235 /* DRM_KAI: BB*2 AA*3 II*12 */
236 WIIPROTO_REQ_DRM_KAI = 0x33,
238 /* DRM_KEE: BB*2 EE*19 */
239 WIIPROTO_REQ_DRM_KEE = 0x34,
241 /* DRM_KAE: BB*2 AA*3 EE*16 */
242 WIIPROTO_REQ_DRM_KAE = 0x35,
244 /* DRM_KIE: BB*2 II*10 EE*9 */
245 WIIPROTO_REQ_DRM_KIE = 0x36,
247 /* DRM_KAIE: BB*2 AA*3 II*10 EE*6 */
248 WIIPROTO_REQ_DRM_KAIE = 0x37,
251 WIIPROTO_REQ_DRM_E = 0x3d,
253 /* DRM_SKAI1: BB*2 AA*1 II*18 */
254 WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
256 /* DRM_SKAI2: BB*2 AA*1 II*18 */
257 WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
262 #define dev_to_wii(pdev) hid_get_drvdata(to_hid_device(pdev))
264 void __wiimote_schedule(struct wiimote_data *wdata);
266 extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
267 extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble);
268 extern void wiiproto_req_leds(struct wiimote_data *wdata, int leds);
269 extern void wiiproto_req_status(struct wiimote_data *wdata);
270 extern void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel);
271 extern void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags);
272 extern void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags);
273 extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
274 const __u8 *wmem, __u8 size);
275 extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
276 __u8 *rmem, __u8 size);
278 #define wiiproto_req_rreg(wdata, os, sz) \
279 wiiproto_req_rmem((wdata), false, (os), (sz))
280 #define wiiproto_req_reeprom(wdata, os, sz) \
281 wiiproto_req_rmem((wdata), true, (os), (sz))
282 extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
283 __u32 offset, __u16 size);
285 #ifdef CONFIG_DEBUG_FS
287 extern int wiidebug_init(struct wiimote_data *wdata);
288 extern void wiidebug_deinit(struct wiimote_data *wdata);
292 static inline int wiidebug_init(void *u) { return 0; }
293 static inline void wiidebug_deinit(void *u) { }
297 /* requires the state.lock spinlock to be held */
298 static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
301 return wdata->state.cmd == cmd && wdata->state.opt == opt;
304 /* requires the state.lock spinlock to be held */
305 static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
307 wdata->state.cmd = WIIPROTO_REQ_NULL;
308 complete(&wdata->state.ready);
311 /* requires the state.lock spinlock to be held */
312 static inline void wiimote_cmd_abort(struct wiimote_data *wdata)
314 /* Abort synchronous request by waking up the sleeping caller. But
315 * reset the state.cmd field to an invalid value so no further event
316 * handlers will work with it. */
317 wdata->state.cmd = WIIPROTO_REQ_MAX;
318 complete(&wdata->state.ready);
321 static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
323 return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
326 static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata)
328 mutex_lock(&wdata->state.sync);
331 /* requires the state.lock spinlock to be held */
332 static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
335 reinit_completion(&wdata->state.ready);
336 wdata->state.cmd = cmd;
337 wdata->state.opt = opt;
340 static inline void wiimote_cmd_release(struct wiimote_data *wdata)
342 mutex_unlock(&wdata->state.sync);
345 static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
349 /* The completion acts as implicit memory barrier so we can safely
350 * assume that state.cmd is set on success/failure and isn't accessed
351 * by any other thread, anymore. */
353 ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
358 else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
364 static inline int wiimote_cmd_wait_noint(struct wiimote_data *wdata)
368 /* no locking needed; see wiimote_cmd_wait() */
369 ret = wait_for_completion_timeout(&wdata->state.ready, HZ);
372 else if (wdata->state.cmd != WIIPROTO_REQ_NULL)