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7e274400 DH |
1 | #ifndef __HID_WIIMOTE_H |
2 | #define __HID_WIIMOTE_H | |
3 | ||
4 | /* | |
5 | * HID driver for Nintendo Wiimote devices | |
6 | * Copyright (c) 2011 David Herrmann | |
7 | */ | |
8 | ||
9 | /* | |
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) | |
13 | * any later version. | |
14 | */ | |
15 | ||
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 | ||
26 | #define WIIMOTE_NAME "Nintendo Wii Remote" | |
27 | #define WIIMOTE_BUFSIZE 32 | |
28 | ||
29 | #define WIIPROTO_FLAG_LED1 0x01 | |
30 | #define WIIPROTO_FLAG_LED2 0x02 | |
31 | #define WIIPROTO_FLAG_LED3 0x04 | |
32 | #define WIIPROTO_FLAG_LED4 0x08 | |
33 | #define WIIPROTO_FLAG_RUMBLE 0x10 | |
34 | #define WIIPROTO_FLAG_ACCEL 0x20 | |
35 | #define WIIPROTO_FLAG_IR_BASIC 0x40 | |
36 | #define WIIPROTO_FLAG_IR_EXT 0x80 | |
37 | #define WIIPROTO_FLAG_IR_FULL 0xc0 /* IR_BASIC | IR_EXT */ | |
38 | #define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \ | |
39 | WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4) | |
40 | #define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \ | |
41 | WIIPROTO_FLAG_IR_FULL) | |
42 | ||
43 | /* return flag for led \num */ | |
44 | #define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1)) | |
45 | ||
46 | struct wiimote_buf { | |
47 | __u8 data[HID_MAX_BUFFER_SIZE]; | |
48 | size_t size; | |
49 | }; | |
50 | ||
51 | struct wiimote_state { | |
52 | spinlock_t lock; | |
53 | __u8 flags; | |
54 | __u8 accel_split[2]; | |
43d782ae | 55 | __u8 drm; |
7e274400 DH |
56 | |
57 | /* synchronous cmd requests */ | |
58 | struct mutex sync; | |
59 | struct completion ready; | |
60 | int cmd; | |
61 | __u32 opt; | |
62 | ||
63 | /* results of synchronous requests */ | |
64 | __u8 cmd_battery; | |
65 | __u8 cmd_err; | |
fad8c0e3 DH |
66 | __u8 *cmd_read_buf; |
67 | __u8 cmd_read_size; | |
7e274400 DH |
68 | }; |
69 | ||
70 | struct wiimote_data { | |
71 | struct hid_device *hdev; | |
72 | struct input_dev *input; | |
73 | struct led_classdev *leds[4]; | |
74 | struct input_dev *accel; | |
75 | struct input_dev *ir; | |
76 | struct power_supply battery; | |
cb99221b | 77 | struct wiimote_ext *ext; |
43e5e7c6 | 78 | struct wiimote_debug *debug; |
7e274400 DH |
79 | |
80 | spinlock_t qlock; | |
81 | __u8 head; | |
82 | __u8 tail; | |
83 | struct wiimote_buf outq[WIIMOTE_BUFSIZE]; | |
84 | struct work_struct worker; | |
85 | ||
86 | struct wiimote_state state; | |
87 | }; | |
88 | ||
89 | enum wiiproto_reqs { | |
90 | WIIPROTO_REQ_NULL = 0x0, | |
91 | WIIPROTO_REQ_RUMBLE = 0x10, | |
92 | WIIPROTO_REQ_LED = 0x11, | |
93 | WIIPROTO_REQ_DRM = 0x12, | |
94 | WIIPROTO_REQ_IR1 = 0x13, | |
95 | WIIPROTO_REQ_SREQ = 0x15, | |
96 | WIIPROTO_REQ_WMEM = 0x16, | |
97 | WIIPROTO_REQ_RMEM = 0x17, | |
98 | WIIPROTO_REQ_IR2 = 0x1a, | |
99 | WIIPROTO_REQ_STATUS = 0x20, | |
100 | WIIPROTO_REQ_DATA = 0x21, | |
101 | WIIPROTO_REQ_RETURN = 0x22, | |
102 | WIIPROTO_REQ_DRM_K = 0x30, | |
103 | WIIPROTO_REQ_DRM_KA = 0x31, | |
104 | WIIPROTO_REQ_DRM_KE = 0x32, | |
105 | WIIPROTO_REQ_DRM_KAI = 0x33, | |
106 | WIIPROTO_REQ_DRM_KEE = 0x34, | |
107 | WIIPROTO_REQ_DRM_KAE = 0x35, | |
108 | WIIPROTO_REQ_DRM_KIE = 0x36, | |
109 | WIIPROTO_REQ_DRM_KAIE = 0x37, | |
110 | WIIPROTO_REQ_DRM_E = 0x3d, | |
111 | WIIPROTO_REQ_DRM_SKAI1 = 0x3e, | |
112 | WIIPROTO_REQ_DRM_SKAI2 = 0x3f, | |
43d782ae | 113 | WIIPROTO_REQ_MAX |
7e274400 DH |
114 | }; |
115 | ||
116 | #define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \ | |
117 | dev)) | |
118 | ||
119 | extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm); | |
120 | extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, | |
121 | const __u8 *wmem, __u8 size); | |
fad8c0e3 DH |
122 | extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, |
123 | __u8 *rmem, __u8 size); | |
7e274400 | 124 | |
1d3452c6 DH |
125 | #define wiiproto_req_rreg(wdata, os, sz) \ |
126 | wiiproto_req_rmem((wdata), false, (os), (sz)) | |
127 | #define wiiproto_req_reeprom(wdata, os, sz) \ | |
128 | wiiproto_req_rmem((wdata), true, (os), (sz)) | |
129 | extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom, | |
130 | __u32 offset, __u16 size); | |
131 | ||
cb99221b DH |
132 | #ifdef CONFIG_HID_WIIMOTE_EXT |
133 | ||
134 | extern int wiiext_init(struct wiimote_data *wdata); | |
135 | extern void wiiext_deinit(struct wiimote_data *wdata); | |
136 | extern void wiiext_event(struct wiimote_data *wdata, bool plugged); | |
137 | extern bool wiiext_active(struct wiimote_data *wdata); | |
0b6815d7 | 138 | extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload); |
cb99221b DH |
139 | |
140 | #else | |
141 | ||
142 | static inline int wiiext_init(void *u) { return 0; } | |
143 | static inline void wiiext_deinit(void *u) { } | |
144 | static inline void wiiext_event(void *u, bool p) { } | |
145 | static inline bool wiiext_active(void *u) { return false; } | |
0b6815d7 | 146 | static inline void wiiext_handle(void *u, const __u8 *p) { } |
cb99221b DH |
147 | |
148 | #endif | |
149 | ||
43e5e7c6 DH |
150 | #ifdef CONFIG_DEBUG_FS |
151 | ||
152 | extern int wiidebug_init(struct wiimote_data *wdata); | |
153 | extern void wiidebug_deinit(struct wiimote_data *wdata); | |
154 | ||
155 | #else | |
156 | ||
157 | static inline int wiidebug_init(void *u) { return 0; } | |
158 | static inline void wiidebug_deinit(void *u) { } | |
159 | ||
160 | #endif | |
161 | ||
7e274400 DH |
162 | /* requires the state.lock spinlock to be held */ |
163 | static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd, | |
164 | __u32 opt) | |
165 | { | |
166 | return wdata->state.cmd == cmd && wdata->state.opt == opt; | |
167 | } | |
168 | ||
169 | /* requires the state.lock spinlock to be held */ | |
170 | static inline void wiimote_cmd_complete(struct wiimote_data *wdata) | |
171 | { | |
172 | wdata->state.cmd = WIIPROTO_REQ_NULL; | |
173 | complete(&wdata->state.ready); | |
174 | } | |
175 | ||
176 | static inline int wiimote_cmd_acquire(struct wiimote_data *wdata) | |
177 | { | |
178 | return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0; | |
179 | } | |
180 | ||
181 | /* requires the state.lock spinlock to be held */ | |
182 | static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd, | |
183 | __u32 opt) | |
184 | { | |
185 | INIT_COMPLETION(wdata->state.ready); | |
186 | wdata->state.cmd = cmd; | |
187 | wdata->state.opt = opt; | |
188 | } | |
189 | ||
190 | static inline void wiimote_cmd_release(struct wiimote_data *wdata) | |
191 | { | |
192 | mutex_unlock(&wdata->state.sync); | |
193 | } | |
194 | ||
195 | static inline int wiimote_cmd_wait(struct wiimote_data *wdata) | |
196 | { | |
197 | int ret; | |
198 | ||
199 | ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ); | |
200 | if (ret < 0) | |
201 | return -ERESTARTSYS; | |
202 | else if (ret == 0) | |
203 | return -EIO; | |
204 | else | |
205 | return 0; | |
206 | } | |
207 | ||
208 | #endif |