David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 1 | #ifndef __HID_WIIMOTE_H |
| 2 | #define __HID_WIIMOTE_H |
| 3 | |
| 4 | /* |
David Herrmann | 92eda7e | 2013-05-05 23:12:45 +0200 | [diff] [blame] | 5 | * HID driver for Nintendo Wii / Wii U peripherals |
| 6 | * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com> |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 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> |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 25 | #include <linux/timer.h> |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 26 | |
| 27 | #define WIIMOTE_NAME "Nintendo Wii Remote" |
| 28 | #define WIIMOTE_BUFSIZE 32 |
| 29 | |
| 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 */ |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 39 | #define WIIPROTO_FLAG_EXT_PLUGGED 0x0100 |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 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 |
David Herrmann | d76f89e | 2013-05-05 23:13:03 +0200 | [diff] [blame] | 46 | #define WIIPROTO_FLAG_DRM_LOCKED 0x8000 |
David Herrmann | 9f32974 | 2013-05-05 23:13:07 +0200 | [diff] [blame] | 47 | #define WIIPROTO_FLAG_BUILTIN_MP 0x010000 |
| 48 | #define WIIPROTO_FLAG_NO_MP 0x020000 |
David Herrmann | 08072dd | 2013-10-28 17:49:20 +0100 | [diff] [blame] | 49 | #define WIIPROTO_FLAG_PRO_CALIB_DONE 0x040000 |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 50 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 51 | #define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \ |
| 52 | WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4) |
| 53 | #define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \ |
| 54 | WIIPROTO_FLAG_IR_FULL) |
| 55 | |
| 56 | /* return flag for led \num */ |
| 57 | #define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1)) |
| 58 | |
David Herrmann | 20cef81 | 2013-05-05 23:12:52 +0200 | [diff] [blame] | 59 | enum wiiproto_keys { |
| 60 | WIIPROTO_KEY_LEFT, |
| 61 | WIIPROTO_KEY_RIGHT, |
| 62 | WIIPROTO_KEY_UP, |
| 63 | WIIPROTO_KEY_DOWN, |
| 64 | WIIPROTO_KEY_PLUS, |
| 65 | WIIPROTO_KEY_MINUS, |
| 66 | WIIPROTO_KEY_ONE, |
| 67 | WIIPROTO_KEY_TWO, |
| 68 | WIIPROTO_KEY_A, |
| 69 | WIIPROTO_KEY_B, |
| 70 | WIIPROTO_KEY_HOME, |
| 71 | WIIPROTO_KEY_COUNT |
| 72 | }; |
| 73 | |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 74 | enum wiimote_devtype { |
| 75 | WIIMOTE_DEV_PENDING, |
| 76 | WIIMOTE_DEV_UNKNOWN, |
| 77 | WIIMOTE_DEV_GENERIC, |
| 78 | WIIMOTE_DEV_GEN10, |
| 79 | WIIMOTE_DEV_GEN20, |
David Herrmann | f1d4bed | 2013-05-05 23:12:58 +0200 | [diff] [blame] | 80 | WIIMOTE_DEV_BALANCE_BOARD, |
David Herrmann | b8e0fe3 | 2013-06-15 15:32:45 +0200 | [diff] [blame] | 81 | WIIMOTE_DEV_PRO_CONTROLLER, |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 82 | WIIMOTE_DEV_NUM, |
| 83 | }; |
| 84 | |
| 85 | enum wiimote_exttype { |
| 86 | WIIMOTE_EXT_NONE, |
| 87 | WIIMOTE_EXT_UNKNOWN, |
David Herrmann | b6ee67b | 2013-05-05 23:12:59 +0200 | [diff] [blame] | 88 | WIIMOTE_EXT_NUNCHUK, |
David Herrmann | 9d6f9ec | 2013-05-05 23:13:00 +0200 | [diff] [blame] | 89 | WIIMOTE_EXT_CLASSIC_CONTROLLER, |
David Herrmann | f1d4bed | 2013-05-05 23:12:58 +0200 | [diff] [blame] | 90 | WIIMOTE_EXT_BALANCE_BOARD, |
David Herrmann | b8e0fe3 | 2013-06-15 15:32:45 +0200 | [diff] [blame] | 91 | WIIMOTE_EXT_PRO_CONTROLLER, |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 92 | WIIMOTE_EXT_NUM, |
| 93 | }; |
| 94 | |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 95 | enum wiimote_mptype { |
| 96 | WIIMOTE_MP_NONE, |
| 97 | WIIMOTE_MP_UNKNOWN, |
| 98 | WIIMOTE_MP_SINGLE, |
| 99 | WIIMOTE_MP_PASSTHROUGH_NUNCHUK, |
| 100 | WIIMOTE_MP_PASSTHROUGH_CLASSIC, |
| 101 | }; |
| 102 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 103 | struct wiimote_buf { |
| 104 | __u8 data[HID_MAX_BUFFER_SIZE]; |
| 105 | size_t size; |
| 106 | }; |
| 107 | |
David Herrmann | 1393853 | 2013-05-05 23:12:46 +0200 | [diff] [blame] | 108 | struct wiimote_queue { |
| 109 | spinlock_t lock; |
| 110 | struct work_struct worker; |
| 111 | __u8 head; |
| 112 | __u8 tail; |
| 113 | struct wiimote_buf outq[WIIMOTE_BUFSIZE]; |
| 114 | }; |
| 115 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 116 | struct wiimote_state { |
| 117 | spinlock_t lock; |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 118 | __u32 flags; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 119 | __u8 accel_split[2]; |
David Herrmann | 43d782a | 2011-11-17 14:12:12 +0100 | [diff] [blame] | 120 | __u8 drm; |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 121 | __u8 devtype; |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 122 | __u8 exttype; |
| 123 | __u8 mp; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 124 | |
| 125 | /* synchronous cmd requests */ |
| 126 | struct mutex sync; |
| 127 | struct completion ready; |
| 128 | int cmd; |
| 129 | __u32 opt; |
| 130 | |
| 131 | /* results of synchronous requests */ |
| 132 | __u8 cmd_battery; |
| 133 | __u8 cmd_err; |
David Herrmann | fad8c0e | 2011-11-17 14:12:00 +0100 | [diff] [blame] | 134 | __u8 *cmd_read_buf; |
| 135 | __u8 cmd_read_size; |
David Herrmann | f1d4bed | 2013-05-05 23:12:58 +0200 | [diff] [blame] | 136 | |
David Herrmann | f50f9aa | 2013-10-02 13:47:28 +0200 | [diff] [blame] | 137 | /* calibration/cache data */ |
David Herrmann | f1d4bed | 2013-05-05 23:12:58 +0200 | [diff] [blame] | 138 | __u16 calib_bboard[4][3]; |
David Herrmann | 08072dd | 2013-10-28 17:49:20 +0100 | [diff] [blame] | 139 | __s16 calib_pro_sticks[4]; |
David Herrmann | f50f9aa | 2013-10-02 13:47:28 +0200 | [diff] [blame] | 140 | __u8 cache_rumble; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 141 | }; |
| 142 | |
| 143 | struct wiimote_data { |
| 144 | struct hid_device *hdev; |
| 145 | struct input_dev *input; |
David Herrmann | f50f9aa | 2013-10-02 13:47:28 +0200 | [diff] [blame] | 146 | struct work_struct rumble_worker; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 147 | struct led_classdev *leds[4]; |
| 148 | struct input_dev *accel; |
| 149 | struct input_dev *ir; |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame^] | 150 | struct power_supply *battery; |
| 151 | struct power_supply_desc battery_desc; |
David Herrmann | 34472d37 | 2013-05-05 23:13:01 +0200 | [diff] [blame] | 152 | struct input_dev *mp; |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 153 | struct timer_list timer; |
David Herrmann | 43e5e7c | 2011-11-17 14:12:10 +0100 | [diff] [blame] | 154 | struct wiimote_debug *debug; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 155 | |
David Herrmann | f1d4bed | 2013-05-05 23:12:58 +0200 | [diff] [blame] | 156 | union { |
| 157 | struct input_dev *input; |
| 158 | } extension; |
| 159 | |
David Herrmann | 1393853 | 2013-05-05 23:12:46 +0200 | [diff] [blame] | 160 | struct wiimote_queue queue; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 161 | struct wiimote_state state; |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 162 | struct work_struct init_worker; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 163 | }; |
| 164 | |
David Herrmann | 27f0694 | 2013-05-05 23:12:51 +0200 | [diff] [blame] | 165 | /* wiimote modules */ |
| 166 | |
| 167 | enum wiimod_module { |
David Herrmann | 20cef81 | 2013-05-05 23:12:52 +0200 | [diff] [blame] | 168 | WIIMOD_KEYS, |
| 169 | WIIMOD_RUMBLE, |
David Herrmann | dcf3923 | 2013-05-05 23:12:53 +0200 | [diff] [blame] | 170 | WIIMOD_BATTERY, |
David Herrmann | 6c5ae01 | 2013-05-05 23:12:54 +0200 | [diff] [blame] | 171 | WIIMOD_LED1, |
| 172 | WIIMOD_LED2, |
| 173 | WIIMOD_LED3, |
| 174 | WIIMOD_LED4, |
David Herrmann | 0ea1675 | 2013-05-05 23:12:55 +0200 | [diff] [blame] | 175 | WIIMOD_ACCEL, |
David Herrmann | 3b5f03c | 2013-05-05 23:12:56 +0200 | [diff] [blame] | 176 | WIIMOD_IR, |
David Herrmann | 9f32974 | 2013-05-05 23:13:07 +0200 | [diff] [blame] | 177 | WIIMOD_BUILTIN_MP, |
| 178 | WIIMOD_NO_MP, |
David Herrmann | 27f0694 | 2013-05-05 23:12:51 +0200 | [diff] [blame] | 179 | WIIMOD_NUM, |
| 180 | WIIMOD_NULL = WIIMOD_NUM, |
| 181 | }; |
| 182 | |
| 183 | #define WIIMOD_FLAG_INPUT 0x0001 |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 184 | #define WIIMOD_FLAG_EXT8 0x0002 |
| 185 | #define WIIMOD_FLAG_EXT16 0x0004 |
David Herrmann | 27f0694 | 2013-05-05 23:12:51 +0200 | [diff] [blame] | 186 | |
| 187 | struct wiimod_ops { |
| 188 | __u16 flags; |
| 189 | unsigned long arg; |
| 190 | int (*probe) (const struct wiimod_ops *ops, |
| 191 | struct wiimote_data *wdata); |
| 192 | void (*remove) (const struct wiimod_ops *ops, |
| 193 | struct wiimote_data *wdata); |
| 194 | |
| 195 | void (*in_keys) (struct wiimote_data *wdata, const __u8 *keys); |
| 196 | void (*in_accel) (struct wiimote_data *wdata, const __u8 *accel); |
| 197 | void (*in_ir) (struct wiimote_data *wdata, const __u8 *ir, bool packed, |
| 198 | unsigned int id); |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 199 | void (*in_mp) (struct wiimote_data *wdata, const __u8 *mp); |
| 200 | void (*in_ext) (struct wiimote_data *wdata, const __u8 *ext); |
David Herrmann | 27f0694 | 2013-05-05 23:12:51 +0200 | [diff] [blame] | 201 | }; |
| 202 | |
| 203 | extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM]; |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 204 | extern const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM]; |
| 205 | extern const struct wiimod_ops wiimod_mp; |
David Herrmann | 27f0694 | 2013-05-05 23:12:51 +0200 | [diff] [blame] | 206 | |
| 207 | /* wiimote requests */ |
| 208 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 209 | enum wiiproto_reqs { |
| 210 | WIIPROTO_REQ_NULL = 0x0, |
| 211 | WIIPROTO_REQ_RUMBLE = 0x10, |
| 212 | WIIPROTO_REQ_LED = 0x11, |
| 213 | WIIPROTO_REQ_DRM = 0x12, |
| 214 | WIIPROTO_REQ_IR1 = 0x13, |
| 215 | WIIPROTO_REQ_SREQ = 0x15, |
| 216 | WIIPROTO_REQ_WMEM = 0x16, |
| 217 | WIIPROTO_REQ_RMEM = 0x17, |
| 218 | WIIPROTO_REQ_IR2 = 0x1a, |
| 219 | WIIPROTO_REQ_STATUS = 0x20, |
| 220 | WIIPROTO_REQ_DATA = 0x21, |
| 221 | WIIPROTO_REQ_RETURN = 0x22, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 222 | |
| 223 | /* DRM_K: BB*2 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 224 | WIIPROTO_REQ_DRM_K = 0x30, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 225 | |
| 226 | /* DRM_KA: BB*2 AA*3 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 227 | WIIPROTO_REQ_DRM_KA = 0x31, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 228 | |
| 229 | /* DRM_KE: BB*2 EE*8 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 230 | WIIPROTO_REQ_DRM_KE = 0x32, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 231 | |
| 232 | /* DRM_KAI: BB*2 AA*3 II*12 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 233 | WIIPROTO_REQ_DRM_KAI = 0x33, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 234 | |
| 235 | /* DRM_KEE: BB*2 EE*19 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 236 | WIIPROTO_REQ_DRM_KEE = 0x34, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 237 | |
| 238 | /* DRM_KAE: BB*2 AA*3 EE*16 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 239 | WIIPROTO_REQ_DRM_KAE = 0x35, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 240 | |
| 241 | /* DRM_KIE: BB*2 II*10 EE*9 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 242 | WIIPROTO_REQ_DRM_KIE = 0x36, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 243 | |
| 244 | /* DRM_KAIE: BB*2 AA*3 II*10 EE*6 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 245 | WIIPROTO_REQ_DRM_KAIE = 0x37, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 246 | |
| 247 | /* DRM_E: EE*21 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 248 | WIIPROTO_REQ_DRM_E = 0x3d, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 249 | |
| 250 | /* DRM_SKAI1: BB*2 AA*1 II*18 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 251 | WIIPROTO_REQ_DRM_SKAI1 = 0x3e, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 252 | |
| 253 | /* DRM_SKAI2: BB*2 AA*1 II*18 */ |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 254 | WIIPROTO_REQ_DRM_SKAI2 = 0x3f, |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 255 | |
David Herrmann | 43d782a | 2011-11-17 14:12:12 +0100 | [diff] [blame] | 256 | WIIPROTO_REQ_MAX |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 257 | }; |
| 258 | |
| 259 | #define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \ |
| 260 | dev)) |
| 261 | |
David Herrmann | 4148b6b | 2013-05-05 23:12:57 +0200 | [diff] [blame] | 262 | void __wiimote_schedule(struct wiimote_data *wdata); |
| 263 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 264 | extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm); |
David Herrmann | 20cef81 | 2013-05-05 23:12:52 +0200 | [diff] [blame] | 265 | extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble); |
David Herrmann | 6c5ae01 | 2013-05-05 23:12:54 +0200 | [diff] [blame] | 266 | extern void wiiproto_req_leds(struct wiimote_data *wdata, int leds); |
David Herrmann | dcf3923 | 2013-05-05 23:12:53 +0200 | [diff] [blame] | 267 | extern void wiiproto_req_status(struct wiimote_data *wdata); |
David Herrmann | 0ea1675 | 2013-05-05 23:12:55 +0200 | [diff] [blame] | 268 | extern void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel); |
David Herrmann | 3b5f03c | 2013-05-05 23:12:56 +0200 | [diff] [blame] | 269 | extern void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags); |
| 270 | extern void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags); |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 271 | extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, |
| 272 | const __u8 *wmem, __u8 size); |
David Herrmann | fad8c0e | 2011-11-17 14:12:00 +0100 | [diff] [blame] | 273 | extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, |
| 274 | __u8 *rmem, __u8 size); |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 275 | |
David Herrmann | 1d3452c | 2011-11-17 14:12:11 +0100 | [diff] [blame] | 276 | #define wiiproto_req_rreg(wdata, os, sz) \ |
| 277 | wiiproto_req_rmem((wdata), false, (os), (sz)) |
| 278 | #define wiiproto_req_reeprom(wdata, os, sz) \ |
| 279 | wiiproto_req_rmem((wdata), true, (os), (sz)) |
| 280 | extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom, |
| 281 | __u32 offset, __u16 size); |
| 282 | |
David Herrmann | 43e5e7c | 2011-11-17 14:12:10 +0100 | [diff] [blame] | 283 | #ifdef CONFIG_DEBUG_FS |
| 284 | |
| 285 | extern int wiidebug_init(struct wiimote_data *wdata); |
| 286 | extern void wiidebug_deinit(struct wiimote_data *wdata); |
| 287 | |
| 288 | #else |
| 289 | |
| 290 | static inline int wiidebug_init(void *u) { return 0; } |
| 291 | static inline void wiidebug_deinit(void *u) { } |
| 292 | |
| 293 | #endif |
| 294 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 295 | /* requires the state.lock spinlock to be held */ |
| 296 | static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd, |
| 297 | __u32 opt) |
| 298 | { |
| 299 | return wdata->state.cmd == cmd && wdata->state.opt == opt; |
| 300 | } |
| 301 | |
| 302 | /* requires the state.lock spinlock to be held */ |
| 303 | static inline void wiimote_cmd_complete(struct wiimote_data *wdata) |
| 304 | { |
| 305 | wdata->state.cmd = WIIPROTO_REQ_NULL; |
| 306 | complete(&wdata->state.ready); |
| 307 | } |
| 308 | |
David Herrmann | d758b1f0 | 2013-05-05 23:12:50 +0200 | [diff] [blame] | 309 | /* requires the state.lock spinlock to be held */ |
| 310 | static inline void wiimote_cmd_abort(struct wiimote_data *wdata) |
| 311 | { |
| 312 | /* Abort synchronous request by waking up the sleeping caller. But |
| 313 | * reset the state.cmd field to an invalid value so no further event |
| 314 | * handlers will work with it. */ |
| 315 | wdata->state.cmd = WIIPROTO_REQ_MAX; |
| 316 | complete(&wdata->state.ready); |
| 317 | } |
| 318 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 319 | static inline int wiimote_cmd_acquire(struct wiimote_data *wdata) |
| 320 | { |
| 321 | return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0; |
| 322 | } |
| 323 | |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 324 | static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata) |
| 325 | { |
| 326 | mutex_lock(&wdata->state.sync); |
| 327 | } |
| 328 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 329 | /* requires the state.lock spinlock to be held */ |
| 330 | static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd, |
| 331 | __u32 opt) |
| 332 | { |
Wolfram Sang | 16735d0 | 2013-11-14 14:32:02 -0800 | [diff] [blame] | 333 | reinit_completion(&wdata->state.ready); |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 334 | wdata->state.cmd = cmd; |
| 335 | wdata->state.opt = opt; |
| 336 | } |
| 337 | |
| 338 | static inline void wiimote_cmd_release(struct wiimote_data *wdata) |
| 339 | { |
| 340 | mutex_unlock(&wdata->state.sync); |
| 341 | } |
| 342 | |
| 343 | static inline int wiimote_cmd_wait(struct wiimote_data *wdata) |
| 344 | { |
| 345 | int ret; |
| 346 | |
David Herrmann | d758b1f0 | 2013-05-05 23:12:50 +0200 | [diff] [blame] | 347 | /* The completion acts as implicit memory barrier so we can safely |
| 348 | * assume that state.cmd is set on success/failure and isn't accessed |
| 349 | * by any other thread, anymore. */ |
| 350 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 351 | ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ); |
| 352 | if (ret < 0) |
| 353 | return -ERESTARTSYS; |
| 354 | else if (ret == 0) |
| 355 | return -EIO; |
David Herrmann | d758b1f0 | 2013-05-05 23:12:50 +0200 | [diff] [blame] | 356 | else if (wdata->state.cmd != WIIPROTO_REQ_NULL) |
| 357 | return -EIO; |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 358 | else |
| 359 | return 0; |
| 360 | } |
| 361 | |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 362 | static inline int wiimote_cmd_wait_noint(struct wiimote_data *wdata) |
| 363 | { |
| 364 | unsigned long ret; |
| 365 | |
David Herrmann | d758b1f0 | 2013-05-05 23:12:50 +0200 | [diff] [blame] | 366 | /* no locking needed; see wiimote_cmd_wait() */ |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 367 | ret = wait_for_completion_timeout(&wdata->state.ready, HZ); |
| 368 | if (!ret) |
| 369 | return -EIO; |
David Herrmann | d758b1f0 | 2013-05-05 23:12:50 +0200 | [diff] [blame] | 370 | else if (wdata->state.cmd != WIIPROTO_REQ_NULL) |
| 371 | return -EIO; |
David Herrmann | c57ff76 | 2013-05-05 23:12:48 +0200 | [diff] [blame] | 372 | else |
| 373 | return 0; |
| 374 | } |
| 375 | |
David Herrmann | 7e27440 | 2011-11-17 14:11:59 +0100 | [diff] [blame] | 376 | #endif |