aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/hid/hid-wiimote.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hid/hid-wiimote.h')
-rw-r--r--drivers/hid/hid-wiimote.h208
1 files changed, 208 insertions, 0 deletions
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
new file mode 100644
index 000000000000..c81dbeb086c5
--- /dev/null
+++ b/drivers/hid/hid-wiimote.h
@@ -0,0 +1,208 @@
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
46struct wiimote_buf {
47 __u8 data[HID_MAX_BUFFER_SIZE];
48 size_t size;
49};
50
51struct wiimote_state {
52 spinlock_t lock;
53 __u8 flags;
54 __u8 accel_split[2];
55 __u8 drm;
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;
66 __u8 *cmd_read_buf;
67 __u8 cmd_read_size;
68};
69
70struct 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;
77 struct wiimote_ext *ext;
78 struct wiimote_debug *debug;
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
89enum 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,
113 WIIPROTO_REQ_MAX
114};
115
116#define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
117 dev))
118
119extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
120extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
121 const __u8 *wmem, __u8 size);
122extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
123 __u8 *rmem, __u8 size);
124
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))
129extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
130 __u32 offset, __u16 size);
131
132#ifdef CONFIG_HID_WIIMOTE_EXT
133
134extern int wiiext_init(struct wiimote_data *wdata);
135extern void wiiext_deinit(struct wiimote_data *wdata);
136extern void wiiext_event(struct wiimote_data *wdata, bool plugged);
137extern bool wiiext_active(struct wiimote_data *wdata);
138extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload);
139
140#else
141
142static inline int wiiext_init(void *u) { return 0; }
143static inline void wiiext_deinit(void *u) { }
144static inline void wiiext_event(void *u, bool p) { }
145static inline bool wiiext_active(void *u) { return false; }
146static inline void wiiext_handle(void *u, const __u8 *p) { }
147
148#endif
149
150#ifdef CONFIG_DEBUG_FS
151
152extern int wiidebug_init(struct wiimote_data *wdata);
153extern void wiidebug_deinit(struct wiimote_data *wdata);
154
155#else
156
157static inline int wiidebug_init(void *u) { return 0; }
158static inline void wiidebug_deinit(void *u) { }
159
160#endif
161
162/* requires the state.lock spinlock to be held */
163static 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 */
170static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
171{
172 wdata->state.cmd = WIIPROTO_REQ_NULL;
173 complete(&wdata->state.ready);
174}
175
176static 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 */
182static 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
190static inline void wiimote_cmd_release(struct wiimote_data *wdata)
191{
192 mutex_unlock(&wdata->state.sync);
193}
194
195static 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
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-18 00:41:29 -0500