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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]; | |
55 | ||
56 | /* synchronous cmd requests */ | |
57 | struct mutex sync; | |
58 | struct completion ready; | |
59 | int cmd; | |
60 | __u32 opt; | |
61 | ||
62 | /* results of synchronous requests */ | |
63 | __u8 cmd_battery; | |
64 | __u8 cmd_err; | |
fad8c0e3 DH |
65 | __u8 *cmd_read_buf; |
66 | __u8 cmd_read_size; | |
7e274400 DH |
67 | }; |
68 | ||
69 | struct wiimote_data { | |
70 | struct hid_device *hdev; | |
71 | struct input_dev *input; | |
72 | struct led_classdev *leds[4]; | |
73 | struct input_dev *accel; | |
74 | struct input_dev *ir; | |
75 | struct power_supply battery; | |
cb99221b | 76 | struct wiimote_ext *ext; |
7e274400 DH |
77 | |
78 | spinlock_t qlock; | |
79 | __u8 head; | |
80 | __u8 tail; | |
81 | struct wiimote_buf outq[WIIMOTE_BUFSIZE]; | |
82 | struct work_struct worker; | |
83 | ||
84 | struct wiimote_state state; | |
85 | }; | |
86 | ||
87 | enum wiiproto_reqs { | |
88 | WIIPROTO_REQ_NULL = 0x0, | |
89 | WIIPROTO_REQ_RUMBLE = 0x10, | |
90 | WIIPROTO_REQ_LED = 0x11, | |
91 | WIIPROTO_REQ_DRM = 0x12, | |
92 | WIIPROTO_REQ_IR1 = 0x13, | |
93 | WIIPROTO_REQ_SREQ = 0x15, | |
94 | WIIPROTO_REQ_WMEM = 0x16, | |
95 | WIIPROTO_REQ_RMEM = 0x17, | |
96 | WIIPROTO_REQ_IR2 = 0x1a, | |
97 | WIIPROTO_REQ_STATUS = 0x20, | |
98 | WIIPROTO_REQ_DATA = 0x21, | |
99 | WIIPROTO_REQ_RETURN = 0x22, | |
100 | WIIPROTO_REQ_DRM_K = 0x30, | |
101 | WIIPROTO_REQ_DRM_KA = 0x31, | |
102 | WIIPROTO_REQ_DRM_KE = 0x32, | |
103 | WIIPROTO_REQ_DRM_KAI = 0x33, | |
104 | WIIPROTO_REQ_DRM_KEE = 0x34, | |
105 | WIIPROTO_REQ_DRM_KAE = 0x35, | |
106 | WIIPROTO_REQ_DRM_KIE = 0x36, | |
107 | WIIPROTO_REQ_DRM_KAIE = 0x37, | |
108 | WIIPROTO_REQ_DRM_E = 0x3d, | |
109 | WIIPROTO_REQ_DRM_SKAI1 = 0x3e, | |
110 | WIIPROTO_REQ_DRM_SKAI2 = 0x3f, | |
111 | }; | |
112 | ||
113 | #define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \ | |
114 | dev)) | |
115 | ||
116 | extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm); | |
117 | extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, | |
118 | const __u8 *wmem, __u8 size); | |
fad8c0e3 DH |
119 | extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, |
120 | __u8 *rmem, __u8 size); | |
7e274400 | 121 | |
cb99221b DH |
122 | #ifdef CONFIG_HID_WIIMOTE_EXT |
123 | ||
124 | extern int wiiext_init(struct wiimote_data *wdata); | |
125 | extern void wiiext_deinit(struct wiimote_data *wdata); | |
126 | extern void wiiext_event(struct wiimote_data *wdata, bool plugged); | |
127 | extern bool wiiext_active(struct wiimote_data *wdata); | |
0b6815d7 | 128 | extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload); |
cb99221b DH |
129 | |
130 | #else | |
131 | ||
132 | static inline int wiiext_init(void *u) { return 0; } | |
133 | static inline void wiiext_deinit(void *u) { } | |
134 | static inline void wiiext_event(void *u, bool p) { } | |
135 | static inline bool wiiext_active(void *u) { return false; } | |
0b6815d7 | 136 | static inline void wiiext_handle(void *u, const __u8 *p) { } |
cb99221b DH |
137 | |
138 | #endif | |
139 | ||
7e274400 DH |
140 | /* requires the state.lock spinlock to be held */ |
141 | static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd, | |
142 | __u32 opt) | |
143 | { | |
144 | return wdata->state.cmd == cmd && wdata->state.opt == opt; | |
145 | } | |
146 | ||
147 | /* requires the state.lock spinlock to be held */ | |
148 | static inline void wiimote_cmd_complete(struct wiimote_data *wdata) | |
149 | { | |
150 | wdata->state.cmd = WIIPROTO_REQ_NULL; | |
151 | complete(&wdata->state.ready); | |
152 | } | |
153 | ||
154 | static inline int wiimote_cmd_acquire(struct wiimote_data *wdata) | |
155 | { | |
156 | return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0; | |
157 | } | |
158 | ||
159 | /* requires the state.lock spinlock to be held */ | |
160 | static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd, | |
161 | __u32 opt) | |
162 | { | |
163 | INIT_COMPLETION(wdata->state.ready); | |
164 | wdata->state.cmd = cmd; | |
165 | wdata->state.opt = opt; | |
166 | } | |
167 | ||
168 | static inline void wiimote_cmd_release(struct wiimote_data *wdata) | |
169 | { | |
170 | mutex_unlock(&wdata->state.sync); | |
171 | } | |
172 | ||
173 | static inline int wiimote_cmd_wait(struct wiimote_data *wdata) | |
174 | { | |
175 | int ret; | |
176 | ||
177 | ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ); | |
178 | if (ret < 0) | |
179 | return -ERESTARTSYS; | |
180 | else if (ret == 0) | |
181 | return -EIO; | |
182 | else | |
183 | return 0; | |
184 | } | |
185 | ||
186 | #endif |