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
47 #define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
48 WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
49 #define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
50 WIIPROTO_FLAG_IR_FULL)
52 /* return flag for led \num */
53 #define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
70 enum wiimote_devtype {
76 WIIMOTE_DEV_BALANCE_BOARD,
80 enum wiimote_exttype {
84 WIIMOTE_EXT_CLASSIC_CONTROLLER,
85 WIIMOTE_EXT_BALANCE_BOARD,
93 WIIMOTE_MP_PASSTHROUGH_NUNCHUK,
94 WIIMOTE_MP_PASSTHROUGH_CLASSIC,
98 __u8 data[HID_MAX_BUFFER_SIZE];
102 struct wiimote_queue {
104 struct work_struct worker;
107 struct wiimote_buf outq[WIIMOTE_BUFSIZE];
110 struct wiimote_state {
119 /* synchronous cmd requests */
121 struct completion ready;
125 /* results of synchronous requests */
131 /* calibration data */
132 __u16 calib_bboard[4][3];
135 struct wiimote_data {
136 struct hid_device *hdev;
137 struct input_dev *input;
138 struct led_classdev *leds[4];
139 struct input_dev *accel;
140 struct input_dev *ir;
141 struct power_supply battery;
142 struct timer_list timer;
143 struct wiimote_ext *ext;
144 struct wiimote_debug *debug;
147 struct input_dev *input;
150 struct wiimote_queue queue;
151 struct wiimote_state state;
152 struct work_struct init_worker;
155 /* wiimote modules */
168 WIIMOD_NULL = WIIMOD_NUM,
171 #define WIIMOD_FLAG_INPUT 0x0001
172 #define WIIMOD_FLAG_EXT8 0x0002
173 #define WIIMOD_FLAG_EXT16 0x0004
178 int (*probe) (const struct wiimod_ops *ops,
179 struct wiimote_data *wdata);
180 void (*remove) (const struct wiimod_ops *ops,
181 struct wiimote_data *wdata);
183 void (*in_keys) (struct wiimote_data *wdata, const __u8 *keys);
184 void (*in_accel) (struct wiimote_data *wdata, const __u8 *accel);
185 void (*in_ir) (struct wiimote_data *wdata, const __u8 *ir, bool packed,
187 void (*in_mp) (struct wiimote_data *wdata, const __u8 *mp);
188 void (*in_ext) (struct wiimote_data *wdata, const __u8 *ext);
191 extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM];
192 extern const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM];
193 extern const struct wiimod_ops wiimod_mp;
195 /* wiimote requests */
198 WIIPROTO_REQ_NULL = 0x0,
199 WIIPROTO_REQ_RUMBLE = 0x10,
200 WIIPROTO_REQ_LED = 0x11,
201 WIIPROTO_REQ_DRM = 0x12,
202 WIIPROTO_REQ_IR1 = 0x13,
203 WIIPROTO_REQ_SREQ = 0x15,
204 WIIPROTO_REQ_WMEM = 0x16,
205 WIIPROTO_REQ_RMEM = 0x17,
206 WIIPROTO_REQ_IR2 = 0x1a,
207 WIIPROTO_REQ_STATUS = 0x20,
208 WIIPROTO_REQ_DATA = 0x21,
209 WIIPROTO_REQ_RETURN = 0x22,
212 WIIPROTO_REQ_DRM_K = 0x30,
214 /* DRM_KA: BB*2 AA*3 */
215 WIIPROTO_REQ_DRM_KA = 0x31,
217 /* DRM_KE: BB*2 EE*8 */
218 WIIPROTO_REQ_DRM_KE = 0x32,
220 /* DRM_KAI: BB*2 AA*3 II*12 */
221 WIIPROTO_REQ_DRM_KAI = 0x33,
223 /* DRM_KEE: BB*2 EE*19 */
224 WIIPROTO_REQ_DRM_KEE = 0x34,
226 /* DRM_KAE: BB*2 AA*3 EE*16 */
227 WIIPROTO_REQ_DRM_KAE = 0x35,
229 /* DRM_KIE: BB*2 II*10 EE*9 */
230 WIIPROTO_REQ_DRM_KIE = 0x36,
232 /* DRM_KAIE: BB*2 AA*3 II*10 EE*6 */
233 WIIPROTO_REQ_DRM_KAIE = 0x37,
236 WIIPROTO_REQ_DRM_E = 0x3d,
238 /* DRM_SKAI1: BB*2 AA*1 II*18 */
239 WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
241 /* DRM_SKAI2: BB*2 AA*1 II*18 */
242 WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
247 #define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
250 void __wiimote_schedule(struct wiimote_data *wdata);
252 extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
253 extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble);
254 extern void wiiproto_req_leds(struct wiimote_data *wdata, int leds);
255 extern void wiiproto_req_status(struct wiimote_data *wdata);
256 extern void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel);
257 extern void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags);
258 extern void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags);
259 extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
260 const __u8 *wmem, __u8 size);
261 extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
262 __u8 *rmem, __u8 size);
264 #define wiiproto_req_rreg(wdata, os, sz) \
265 wiiproto_req_rmem((wdata), false, (os), (sz))
266 #define wiiproto_req_reeprom(wdata, os, sz) \
267 wiiproto_req_rmem((wdata), true, (os), (sz))
268 extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
269 __u32 offset, __u16 size);
271 #ifdef CONFIG_HID_WIIMOTE_EXT
273 extern int wiiext_init(struct wiimote_data *wdata);
274 extern void wiiext_deinit(struct wiimote_data *wdata);
275 extern void wiiext_event(struct wiimote_data *wdata, bool plugged);
276 extern bool wiiext_active(struct wiimote_data *wdata);
277 extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload);
281 static inline int wiiext_init(void *u) { return 0; }
282 static inline void wiiext_deinit(void *u) { }
283 static inline void wiiext_event(void *u, bool p) { }
284 static inline bool wiiext_active(void *u) { return false; }
285 static inline void wiiext_handle(void *u, const __u8 *p) { }
289 #ifdef CONFIG_DEBUG_FS
291 extern int wiidebug_init(struct wiimote_data *wdata);
292 extern void wiidebug_deinit(struct wiimote_data *wdata);
296 static inline int wiidebug_init(void *u) { return 0; }
297 static inline void wiidebug_deinit(void *u) { }
301 /* requires the state.lock spinlock to be held */
302 static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
305 return wdata->state.cmd == cmd && wdata->state.opt == opt;
308 /* requires the state.lock spinlock to be held */
309 static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
311 wdata->state.cmd = WIIPROTO_REQ_NULL;
312 complete(&wdata->state.ready);
315 /* requires the state.lock spinlock to be held */
316 static inline void wiimote_cmd_abort(struct wiimote_data *wdata)
318 /* Abort synchronous request by waking up the sleeping caller. But
319 * reset the state.cmd field to an invalid value so no further event
320 * handlers will work with it. */
321 wdata->state.cmd = WIIPROTO_REQ_MAX;
322 complete(&wdata->state.ready);
325 static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
327 return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
330 static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata)
332 mutex_lock(&wdata->state.sync);
335 /* requires the state.lock spinlock to be held */
336 static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
339 INIT_COMPLETION(wdata->state.ready);
340 wdata->state.cmd = cmd;
341 wdata->state.opt = opt;
344 static inline void wiimote_cmd_release(struct wiimote_data *wdata)
346 mutex_unlock(&wdata->state.sync);
349 static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
353 /* The completion acts as implicit memory barrier so we can safely
354 * assume that state.cmd is set on success/failure and isn't accessed
355 * by any other thread, anymore. */
357 ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
362 else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
368 static inline int wiimote_cmd_wait_noint(struct wiimote_data *wdata)
372 /* no locking needed; see wiimote_cmd_wait() */
373 ret = wait_for_completion_timeout(&wdata->state.ready, HZ);
376 else if (wdata->state.cmd != WIIPROTO_REQ_NULL)