David Herrmann | fb51b44 | 2011-07-05 13:45:08 +0200 | [diff] [blame] | 1 | /* |
| 2 | * HID driver for Nintendo Wiimote devices |
| 3 | * Copyright (c) 2011 David Herrmann |
| 4 | */ |
| 5 | |
| 6 | /* |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the Free |
| 9 | * Software Foundation; either version 2 of the License, or (at your option) |
| 10 | * any later version. |
| 11 | */ |
| 12 | |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 13 | #include <linux/device.h> |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 14 | #include <linux/hid.h> |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 15 | #include <linux/input.h> |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 16 | #include <linux/leds.h> |
David Herrmann | fb51b44 | 2011-07-05 13:45:08 +0200 | [diff] [blame] | 17 | #include <linux/module.h> |
David Herrmann | 23c063c | 2011-07-05 13:45:14 +0200 | [diff] [blame] | 18 | #include <linux/spinlock.h> |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 19 | #include "hid-ids.h" |
David Herrmann | fb51b44 | 2011-07-05 13:45:08 +0200 | [diff] [blame] | 20 | |
| 21 | #define WIIMOTE_VERSION "0.1" |
| 22 | #define WIIMOTE_NAME "Nintendo Wii Remote" |
David Herrmann | 23c063c | 2011-07-05 13:45:14 +0200 | [diff] [blame] | 23 | #define WIIMOTE_BUFSIZE 32 |
| 24 | |
| 25 | struct wiimote_buf { |
| 26 | __u8 data[HID_MAX_BUFFER_SIZE]; |
| 27 | size_t size; |
| 28 | }; |
David Herrmann | fb51b44 | 2011-07-05 13:45:08 +0200 | [diff] [blame] | 29 | |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 30 | struct wiimote_state { |
| 31 | spinlock_t lock; |
| 32 | __u8 flags; |
David Herrmann | efcf918 | 2011-09-06 13:50:29 +0200 | [diff] [blame^] | 33 | __u8 accel_split[2]; |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 34 | }; |
| 35 | |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 36 | struct wiimote_data { |
| 37 | struct hid_device *hdev; |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 38 | struct input_dev *input; |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 39 | struct led_classdev *leds[4]; |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 40 | struct input_dev *accel; |
David Herrmann | 23c063c | 2011-07-05 13:45:14 +0200 | [diff] [blame] | 41 | |
| 42 | spinlock_t qlock; |
| 43 | __u8 head; |
| 44 | __u8 tail; |
| 45 | struct wiimote_buf outq[WIIMOTE_BUFSIZE]; |
| 46 | struct work_struct worker; |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 47 | |
| 48 | struct wiimote_state state; |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 49 | }; |
| 50 | |
David Herrmann | c003ec2 | 2011-09-06 13:50:26 +0200 | [diff] [blame] | 51 | #define WIIPROTO_FLAG_LED1 0x01 |
| 52 | #define WIIPROTO_FLAG_LED2 0x02 |
| 53 | #define WIIPROTO_FLAG_LED3 0x04 |
| 54 | #define WIIPROTO_FLAG_LED4 0x08 |
| 55 | #define WIIPROTO_FLAG_RUMBLE 0x10 |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 56 | #define WIIPROTO_FLAG_ACCEL 0x20 |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 57 | #define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \ |
| 58 | WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4) |
David Herrmann | db30834 | 2011-07-05 13:45:17 +0200 | [diff] [blame] | 59 | |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 60 | /* return flag for led \num */ |
| 61 | #define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1)) |
| 62 | |
David Herrmann | 1abb9ad | 2011-07-05 13:45:16 +0200 | [diff] [blame] | 63 | enum wiiproto_reqs { |
David Herrmann | 2cb5e4b | 2011-08-17 11:43:23 +0200 | [diff] [blame] | 64 | WIIPROTO_REQ_NULL = 0x0, |
David Herrmann | c003ec2 | 2011-09-06 13:50:26 +0200 | [diff] [blame] | 65 | WIIPROTO_REQ_RUMBLE = 0x10, |
David Herrmann | db30834 | 2011-07-05 13:45:17 +0200 | [diff] [blame] | 66 | WIIPROTO_REQ_LED = 0x11, |
David Herrmann | 2cb5e4b | 2011-08-17 11:43:23 +0200 | [diff] [blame] | 67 | WIIPROTO_REQ_DRM = 0x12, |
David Herrmann | c87019e | 2011-08-17 11:43:24 +0200 | [diff] [blame] | 68 | WIIPROTO_REQ_STATUS = 0x20, |
| 69 | WIIPROTO_REQ_RETURN = 0x22, |
David Herrmann | 1abb9ad | 2011-07-05 13:45:16 +0200 | [diff] [blame] | 70 | WIIPROTO_REQ_DRM_K = 0x30, |
David Herrmann | efcf918 | 2011-09-06 13:50:29 +0200 | [diff] [blame^] | 71 | WIIPROTO_REQ_DRM_KA = 0x31, |
| 72 | WIIPROTO_REQ_DRM_KAI = 0x33, |
| 73 | WIIPROTO_REQ_DRM_KAE = 0x35, |
| 74 | WIIPROTO_REQ_DRM_KAIE = 0x37, |
| 75 | WIIPROTO_REQ_DRM_SKAI1 = 0x3e, |
| 76 | WIIPROTO_REQ_DRM_SKAI2 = 0x3f, |
David Herrmann | 1abb9ad | 2011-07-05 13:45:16 +0200 | [diff] [blame] | 77 | }; |
| 78 | |
| 79 | enum wiiproto_keys { |
| 80 | WIIPROTO_KEY_LEFT, |
| 81 | WIIPROTO_KEY_RIGHT, |
| 82 | WIIPROTO_KEY_UP, |
| 83 | WIIPROTO_KEY_DOWN, |
| 84 | WIIPROTO_KEY_PLUS, |
| 85 | WIIPROTO_KEY_MINUS, |
| 86 | WIIPROTO_KEY_ONE, |
| 87 | WIIPROTO_KEY_TWO, |
| 88 | WIIPROTO_KEY_A, |
| 89 | WIIPROTO_KEY_B, |
| 90 | WIIPROTO_KEY_HOME, |
| 91 | WIIPROTO_KEY_COUNT |
| 92 | }; |
| 93 | |
| 94 | static __u16 wiiproto_keymap[] = { |
| 95 | KEY_LEFT, /* WIIPROTO_KEY_LEFT */ |
| 96 | KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */ |
| 97 | KEY_UP, /* WIIPROTO_KEY_UP */ |
| 98 | KEY_DOWN, /* WIIPROTO_KEY_DOWN */ |
| 99 | KEY_NEXT, /* WIIPROTO_KEY_PLUS */ |
| 100 | KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */ |
| 101 | BTN_1, /* WIIPROTO_KEY_ONE */ |
| 102 | BTN_2, /* WIIPROTO_KEY_TWO */ |
| 103 | BTN_A, /* WIIPROTO_KEY_A */ |
| 104 | BTN_B, /* WIIPROTO_KEY_B */ |
| 105 | BTN_MODE, /* WIIPROTO_KEY_HOME */ |
| 106 | }; |
| 107 | |
David Herrmann | 0c218f1 | 2011-07-05 13:45:13 +0200 | [diff] [blame] | 108 | static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer, |
| 109 | size_t count) |
| 110 | { |
| 111 | __u8 *buf; |
| 112 | ssize_t ret; |
| 113 | |
| 114 | if (!hdev->hid_output_raw_report) |
| 115 | return -ENODEV; |
| 116 | |
| 117 | buf = kmemdup(buffer, count, GFP_KERNEL); |
| 118 | if (!buf) |
| 119 | return -ENOMEM; |
| 120 | |
| 121 | ret = hdev->hid_output_raw_report(hdev, buf, count, HID_OUTPUT_REPORT); |
| 122 | |
| 123 | kfree(buf); |
| 124 | return ret; |
| 125 | } |
| 126 | |
David Herrmann | 23c063c | 2011-07-05 13:45:14 +0200 | [diff] [blame] | 127 | static void wiimote_worker(struct work_struct *work) |
| 128 | { |
| 129 | struct wiimote_data *wdata = container_of(work, struct wiimote_data, |
| 130 | worker); |
| 131 | unsigned long flags; |
| 132 | |
| 133 | spin_lock_irqsave(&wdata->qlock, flags); |
| 134 | |
| 135 | while (wdata->head != wdata->tail) { |
| 136 | spin_unlock_irqrestore(&wdata->qlock, flags); |
| 137 | wiimote_hid_send(wdata->hdev, wdata->outq[wdata->tail].data, |
| 138 | wdata->outq[wdata->tail].size); |
| 139 | spin_lock_irqsave(&wdata->qlock, flags); |
| 140 | |
| 141 | wdata->tail = (wdata->tail + 1) % WIIMOTE_BUFSIZE; |
| 142 | } |
| 143 | |
| 144 | spin_unlock_irqrestore(&wdata->qlock, flags); |
| 145 | } |
| 146 | |
| 147 | static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer, |
| 148 | size_t count) |
| 149 | { |
| 150 | unsigned long flags; |
| 151 | __u8 newhead; |
| 152 | |
| 153 | if (count > HID_MAX_BUFFER_SIZE) { |
| 154 | hid_warn(wdata->hdev, "Sending too large output report\n"); |
| 155 | return; |
| 156 | } |
| 157 | |
| 158 | /* |
| 159 | * Copy new request into our output queue and check whether the |
| 160 | * queue is full. If it is full, discard this request. |
| 161 | * If it is empty we need to start a new worker that will |
| 162 | * send out the buffer to the hid device. |
| 163 | * If the queue is not empty, then there must be a worker |
| 164 | * that is currently sending out our buffer and this worker |
| 165 | * will reschedule itself until the queue is empty. |
| 166 | */ |
| 167 | |
| 168 | spin_lock_irqsave(&wdata->qlock, flags); |
| 169 | |
| 170 | memcpy(wdata->outq[wdata->head].data, buffer, count); |
| 171 | wdata->outq[wdata->head].size = count; |
| 172 | newhead = (wdata->head + 1) % WIIMOTE_BUFSIZE; |
| 173 | |
| 174 | if (wdata->head == wdata->tail) { |
| 175 | wdata->head = newhead; |
| 176 | schedule_work(&wdata->worker); |
| 177 | } else if (newhead != wdata->tail) { |
| 178 | wdata->head = newhead; |
| 179 | } else { |
| 180 | hid_warn(wdata->hdev, "Output queue is full"); |
| 181 | } |
| 182 | |
| 183 | spin_unlock_irqrestore(&wdata->qlock, flags); |
| 184 | } |
| 185 | |
David Herrmann | c003ec2 | 2011-09-06 13:50:26 +0200 | [diff] [blame] | 186 | /* |
| 187 | * This sets the rumble bit on the given output report if rumble is |
| 188 | * currently enabled. |
| 189 | * \cmd1 must point to the second byte in the output report => &cmd[1] |
| 190 | * This must be called on nearly every output report before passing it |
| 191 | * into the output queue! |
| 192 | */ |
| 193 | static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1) |
| 194 | { |
| 195 | if (wdata->state.flags & WIIPROTO_FLAG_RUMBLE) |
| 196 | *cmd1 |= 0x01; |
| 197 | } |
| 198 | |
| 199 | static void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble) |
| 200 | { |
| 201 | __u8 cmd[2]; |
| 202 | |
| 203 | rumble = !!rumble; |
| 204 | if (rumble == !!(wdata->state.flags & WIIPROTO_FLAG_RUMBLE)) |
| 205 | return; |
| 206 | |
| 207 | if (rumble) |
| 208 | wdata->state.flags |= WIIPROTO_FLAG_RUMBLE; |
| 209 | else |
| 210 | wdata->state.flags &= ~WIIPROTO_FLAG_RUMBLE; |
| 211 | |
| 212 | cmd[0] = WIIPROTO_REQ_RUMBLE; |
| 213 | cmd[1] = 0; |
| 214 | |
| 215 | wiiproto_keep_rumble(wdata, &cmd[1]); |
| 216 | wiimote_queue(wdata, cmd, sizeof(cmd)); |
| 217 | } |
| 218 | |
David Herrmann | db30834 | 2011-07-05 13:45:17 +0200 | [diff] [blame] | 219 | static void wiiproto_req_leds(struct wiimote_data *wdata, int leds) |
| 220 | { |
| 221 | __u8 cmd[2]; |
| 222 | |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 223 | leds &= WIIPROTO_FLAGS_LEDS; |
| 224 | if ((wdata->state.flags & WIIPROTO_FLAGS_LEDS) == leds) |
| 225 | return; |
| 226 | wdata->state.flags = (wdata->state.flags & ~WIIPROTO_FLAGS_LEDS) | leds; |
| 227 | |
David Herrmann | db30834 | 2011-07-05 13:45:17 +0200 | [diff] [blame] | 228 | cmd[0] = WIIPROTO_REQ_LED; |
| 229 | cmd[1] = 0; |
| 230 | |
| 231 | if (leds & WIIPROTO_FLAG_LED1) |
| 232 | cmd[1] |= 0x10; |
| 233 | if (leds & WIIPROTO_FLAG_LED2) |
| 234 | cmd[1] |= 0x20; |
| 235 | if (leds & WIIPROTO_FLAG_LED3) |
| 236 | cmd[1] |= 0x40; |
| 237 | if (leds & WIIPROTO_FLAG_LED4) |
| 238 | cmd[1] |= 0x80; |
| 239 | |
David Herrmann | c003ec2 | 2011-09-06 13:50:26 +0200 | [diff] [blame] | 240 | wiiproto_keep_rumble(wdata, &cmd[1]); |
David Herrmann | db30834 | 2011-07-05 13:45:17 +0200 | [diff] [blame] | 241 | wiimote_queue(wdata, cmd, sizeof(cmd)); |
| 242 | } |
| 243 | |
David Herrmann | 2cb5e4b | 2011-08-17 11:43:23 +0200 | [diff] [blame] | 244 | /* |
| 245 | * Check what peripherals of the wiimote are currently |
| 246 | * active and select a proper DRM that supports all of |
| 247 | * the requested data inputs. |
| 248 | */ |
| 249 | static __u8 select_drm(struct wiimote_data *wdata) |
| 250 | { |
David Herrmann | efcf918 | 2011-09-06 13:50:29 +0200 | [diff] [blame^] | 251 | if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) |
| 252 | return WIIPROTO_REQ_DRM_KA; |
| 253 | else |
| 254 | return WIIPROTO_REQ_DRM_K; |
David Herrmann | 2cb5e4b | 2011-08-17 11:43:23 +0200 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm) |
| 258 | { |
| 259 | __u8 cmd[3]; |
| 260 | |
| 261 | if (drm == WIIPROTO_REQ_NULL) |
| 262 | drm = select_drm(wdata); |
| 263 | |
| 264 | cmd[0] = WIIPROTO_REQ_DRM; |
| 265 | cmd[1] = 0; |
| 266 | cmd[2] = drm; |
| 267 | |
David Herrmann | c003ec2 | 2011-09-06 13:50:26 +0200 | [diff] [blame] | 268 | wiiproto_keep_rumble(wdata, &cmd[1]); |
David Herrmann | 2cb5e4b | 2011-08-17 11:43:23 +0200 | [diff] [blame] | 269 | wiimote_queue(wdata, cmd, sizeof(cmd)); |
| 270 | } |
| 271 | |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 272 | static void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel) |
| 273 | { |
| 274 | accel = !!accel; |
| 275 | if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL)) |
| 276 | return; |
| 277 | |
| 278 | if (accel) |
| 279 | wdata->state.flags |= WIIPROTO_FLAG_ACCEL; |
| 280 | else |
| 281 | wdata->state.flags &= ~WIIPROTO_FLAG_ACCEL; |
| 282 | |
| 283 | wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); |
| 284 | } |
| 285 | |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 286 | static enum led_brightness wiimote_leds_get(struct led_classdev *led_dev) |
| 287 | { |
| 288 | struct wiimote_data *wdata; |
| 289 | struct device *dev = led_dev->dev->parent; |
| 290 | int i; |
| 291 | unsigned long flags; |
| 292 | bool value = false; |
David Herrmann | 3c1c2fc | 2011-07-05 13:45:19 +0200 | [diff] [blame] | 293 | |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 294 | wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev)); |
| 295 | |
| 296 | for (i = 0; i < 4; ++i) { |
| 297 | if (wdata->leds[i] == led_dev) { |
| 298 | spin_lock_irqsave(&wdata->state.lock, flags); |
| 299 | value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1); |
| 300 | spin_unlock_irqrestore(&wdata->state.lock, flags); |
| 301 | break; |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | return value ? LED_FULL : LED_OFF; |
| 306 | } |
| 307 | |
| 308 | static void wiimote_leds_set(struct led_classdev *led_dev, |
| 309 | enum led_brightness value) |
| 310 | { |
| 311 | struct wiimote_data *wdata; |
| 312 | struct device *dev = led_dev->dev->parent; |
| 313 | int i; |
| 314 | unsigned long flags; |
| 315 | __u8 state, flag; |
| 316 | |
| 317 | wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev)); |
| 318 | |
| 319 | for (i = 0; i < 4; ++i) { |
| 320 | if (wdata->leds[i] == led_dev) { |
| 321 | flag = WIIPROTO_FLAG_LED(i + 1); |
| 322 | spin_lock_irqsave(&wdata->state.lock, flags); |
| 323 | state = wdata->state.flags; |
| 324 | if (value == LED_OFF) |
| 325 | wiiproto_req_leds(wdata, state & ~flag); |
| 326 | else |
| 327 | wiiproto_req_leds(wdata, state | flag); |
| 328 | spin_unlock_irqrestore(&wdata->state.lock, flags); |
| 329 | break; |
| 330 | } |
| 331 | } |
| 332 | } |
David Herrmann | 3c1c2fc | 2011-07-05 13:45:19 +0200 | [diff] [blame] | 333 | |
David Herrmann | d020be9 | 2011-09-06 13:50:27 +0200 | [diff] [blame] | 334 | static int wiimote_ff_play(struct input_dev *dev, void *data, |
| 335 | struct ff_effect *eff) |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 336 | { |
David Herrmann | d020be9 | 2011-09-06 13:50:27 +0200 | [diff] [blame] | 337 | struct wiimote_data *wdata = input_get_drvdata(dev); |
| 338 | __u8 value; |
| 339 | unsigned long flags; |
| 340 | |
| 341 | /* |
| 342 | * The wiimote supports only a single rumble motor so if any magnitude |
| 343 | * is set to non-zero then we start the rumble motor. If both are set to |
| 344 | * zero, we stop the rumble motor. |
| 345 | */ |
| 346 | |
| 347 | if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude) |
| 348 | value = 1; |
| 349 | else |
| 350 | value = 0; |
| 351 | |
| 352 | spin_lock_irqsave(&wdata->state.lock, flags); |
| 353 | wiiproto_req_rumble(wdata, value); |
| 354 | spin_unlock_irqrestore(&wdata->state.lock, flags); |
| 355 | |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 356 | return 0; |
| 357 | } |
| 358 | |
David Herrmann | 26af174 | 2011-08-17 11:43:21 +0200 | [diff] [blame] | 359 | static int wiimote_input_open(struct input_dev *dev) |
| 360 | { |
| 361 | struct wiimote_data *wdata = input_get_drvdata(dev); |
| 362 | |
| 363 | return hid_hw_open(wdata->hdev); |
| 364 | } |
| 365 | |
| 366 | static void wiimote_input_close(struct input_dev *dev) |
| 367 | { |
| 368 | struct wiimote_data *wdata = input_get_drvdata(dev); |
| 369 | |
| 370 | hid_hw_close(wdata->hdev); |
| 371 | } |
| 372 | |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 373 | static int wiimote_accel_open(struct input_dev *dev) |
| 374 | { |
| 375 | struct wiimote_data *wdata = input_get_drvdata(dev); |
| 376 | int ret; |
| 377 | unsigned long flags; |
| 378 | |
| 379 | ret = hid_hw_open(wdata->hdev); |
| 380 | if (ret) |
| 381 | return ret; |
| 382 | |
| 383 | spin_lock_irqsave(&wdata->state.lock, flags); |
| 384 | wiiproto_req_accel(wdata, true); |
| 385 | spin_unlock_irqrestore(&wdata->state.lock, flags); |
| 386 | |
| 387 | return 0; |
| 388 | } |
| 389 | |
| 390 | static void wiimote_accel_close(struct input_dev *dev) |
| 391 | { |
| 392 | struct wiimote_data *wdata = input_get_drvdata(dev); |
| 393 | unsigned long flags; |
| 394 | |
| 395 | spin_lock_irqsave(&wdata->state.lock, flags); |
| 396 | wiiproto_req_accel(wdata, false); |
| 397 | spin_unlock_irqrestore(&wdata->state.lock, flags); |
| 398 | |
| 399 | hid_hw_close(wdata->hdev); |
| 400 | } |
| 401 | |
David Herrmann | 1abb9ad | 2011-07-05 13:45:16 +0200 | [diff] [blame] | 402 | static void handler_keys(struct wiimote_data *wdata, const __u8 *payload) |
| 403 | { |
| 404 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_LEFT], |
| 405 | !!(payload[0] & 0x01)); |
| 406 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_RIGHT], |
| 407 | !!(payload[0] & 0x02)); |
| 408 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_DOWN], |
| 409 | !!(payload[0] & 0x04)); |
| 410 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_UP], |
| 411 | !!(payload[0] & 0x08)); |
| 412 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_PLUS], |
| 413 | !!(payload[0] & 0x10)); |
| 414 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_TWO], |
| 415 | !!(payload[1] & 0x01)); |
| 416 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_ONE], |
| 417 | !!(payload[1] & 0x02)); |
| 418 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_B], |
| 419 | !!(payload[1] & 0x04)); |
| 420 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_A], |
| 421 | !!(payload[1] & 0x08)); |
| 422 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_MINUS], |
| 423 | !!(payload[1] & 0x10)); |
| 424 | input_report_key(wdata->input, wiiproto_keymap[WIIPROTO_KEY_HOME], |
| 425 | !!(payload[1] & 0x80)); |
| 426 | input_sync(wdata->input); |
| 427 | } |
| 428 | |
David Herrmann | efcf918 | 2011-09-06 13:50:29 +0200 | [diff] [blame^] | 429 | static void handler_accel(struct wiimote_data *wdata, const __u8 *payload) |
| 430 | { |
| 431 | __u16 x, y, z; |
| 432 | |
| 433 | if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL)) |
| 434 | return; |
| 435 | |
| 436 | /* |
| 437 | * payload is: BB BB XX YY ZZ |
| 438 | * Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ |
| 439 | * contain the upper 8 bits of each value. The lower 2 bits are |
| 440 | * contained in the buttons data BB BB. |
| 441 | * Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the |
| 442 | * X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y |
| 443 | * accel value and bit 6 is the second bit of the Z value. |
| 444 | * The first bit of Y and Z values is not available and always set to 0. |
| 445 | * 0x200 is returned on no movement. |
| 446 | */ |
| 447 | |
| 448 | x = payload[2] << 2; |
| 449 | y = payload[3] << 2; |
| 450 | z = payload[4] << 2; |
| 451 | |
| 452 | x |= (payload[0] >> 5) & 0x3; |
| 453 | y |= (payload[1] >> 4) & 0x2; |
| 454 | z |= (payload[1] >> 5) & 0x2; |
| 455 | |
| 456 | input_report_abs(wdata->accel, ABS_RX, x - 0x200); |
| 457 | input_report_abs(wdata->accel, ABS_RY, y - 0x200); |
| 458 | input_report_abs(wdata->accel, ABS_RZ, z - 0x200); |
| 459 | input_sync(wdata->accel); |
| 460 | } |
| 461 | |
| 462 | |
David Herrmann | c87019e | 2011-08-17 11:43:24 +0200 | [diff] [blame] | 463 | static void handler_status(struct wiimote_data *wdata, const __u8 *payload) |
| 464 | { |
| 465 | handler_keys(wdata, payload); |
| 466 | |
| 467 | /* on status reports the drm is reset so we need to resend the drm */ |
| 468 | wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); |
| 469 | } |
| 470 | |
| 471 | static void handler_return(struct wiimote_data *wdata, const __u8 *payload) |
| 472 | { |
| 473 | __u8 err = payload[3]; |
| 474 | __u8 cmd = payload[2]; |
| 475 | |
| 476 | handler_keys(wdata, payload); |
| 477 | |
| 478 | if (err) |
| 479 | hid_warn(wdata->hdev, "Remote error %hhu on req %hhu\n", err, |
| 480 | cmd); |
| 481 | } |
| 482 | |
David Herrmann | efcf918 | 2011-09-06 13:50:29 +0200 | [diff] [blame^] | 483 | static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload) |
| 484 | { |
| 485 | handler_keys(wdata, payload); |
| 486 | handler_accel(wdata, payload); |
| 487 | } |
| 488 | |
| 489 | static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload) |
| 490 | { |
| 491 | handler_keys(wdata, payload); |
| 492 | handler_accel(wdata, payload); |
| 493 | } |
| 494 | |
| 495 | static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload) |
| 496 | { |
| 497 | handler_keys(wdata, payload); |
| 498 | handler_accel(wdata, payload); |
| 499 | } |
| 500 | |
| 501 | static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload) |
| 502 | { |
| 503 | handler_keys(wdata, payload); |
| 504 | handler_accel(wdata, payload); |
| 505 | } |
| 506 | |
| 507 | static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload) |
| 508 | { |
| 509 | handler_keys(wdata, payload); |
| 510 | |
| 511 | wdata->state.accel_split[0] = payload[2]; |
| 512 | wdata->state.accel_split[1] = (payload[0] >> 1) & (0x10 | 0x20); |
| 513 | wdata->state.accel_split[1] |= (payload[1] << 1) & (0x40 | 0x80); |
| 514 | } |
| 515 | |
| 516 | static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload) |
| 517 | { |
| 518 | __u8 buf[5]; |
| 519 | |
| 520 | handler_keys(wdata, payload); |
| 521 | |
| 522 | wdata->state.accel_split[1] |= (payload[0] >> 5) & (0x01 | 0x02); |
| 523 | wdata->state.accel_split[1] |= (payload[1] >> 3) & (0x04 | 0x08); |
| 524 | |
| 525 | buf[0] = 0; |
| 526 | buf[1] = 0; |
| 527 | buf[2] = wdata->state.accel_split[0]; |
| 528 | buf[3] = payload[2]; |
| 529 | buf[4] = wdata->state.accel_split[1]; |
| 530 | handler_accel(wdata, buf); |
| 531 | } |
| 532 | |
David Herrmann | a4d1919 | 2011-07-05 13:45:15 +0200 | [diff] [blame] | 533 | struct wiiproto_handler { |
| 534 | __u8 id; |
| 535 | size_t size; |
| 536 | void (*func)(struct wiimote_data *wdata, const __u8 *payload); |
| 537 | }; |
| 538 | |
| 539 | static struct wiiproto_handler handlers[] = { |
David Herrmann | c87019e | 2011-08-17 11:43:24 +0200 | [diff] [blame] | 540 | { .id = WIIPROTO_REQ_STATUS, .size = 6, .func = handler_status }, |
| 541 | { .id = WIIPROTO_REQ_RETURN, .size = 4, .func = handler_return }, |
David Herrmann | 1abb9ad | 2011-07-05 13:45:16 +0200 | [diff] [blame] | 542 | { .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys }, |
David Herrmann | efcf918 | 2011-09-06 13:50:29 +0200 | [diff] [blame^] | 543 | { .id = WIIPROTO_REQ_DRM_KA, .size = 5, .func = handler_drm_KA }, |
| 544 | { .id = WIIPROTO_REQ_DRM_KAI, .size = 17, .func = handler_drm_KAI }, |
| 545 | { .id = WIIPROTO_REQ_DRM_KAE, .size = 21, .func = handler_drm_KAE }, |
| 546 | { .id = WIIPROTO_REQ_DRM_KAIE, .size = 21, .func = handler_drm_KAIE }, |
| 547 | { .id = WIIPROTO_REQ_DRM_SKAI1, .size = 21, .func = handler_drm_SKAI1 }, |
| 548 | { .id = WIIPROTO_REQ_DRM_SKAI2, .size = 21, .func = handler_drm_SKAI2 }, |
David Herrmann | a4d1919 | 2011-07-05 13:45:15 +0200 | [diff] [blame] | 549 | { .id = 0 } |
| 550 | }; |
| 551 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 552 | static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report, |
| 553 | u8 *raw_data, int size) |
| 554 | { |
David Herrmann | 4d36e97 | 2011-07-05 13:45:12 +0200 | [diff] [blame] | 555 | struct wiimote_data *wdata = hid_get_drvdata(hdev); |
David Herrmann | a4d1919 | 2011-07-05 13:45:15 +0200 | [diff] [blame] | 556 | struct wiiproto_handler *h; |
| 557 | int i; |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 558 | unsigned long flags; |
David Herrmann | 4d36e97 | 2011-07-05 13:45:12 +0200 | [diff] [blame] | 559 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 560 | if (size < 1) |
| 561 | return -EINVAL; |
| 562 | |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 563 | spin_lock_irqsave(&wdata->state.lock, flags); |
| 564 | |
David Herrmann | a4d1919 | 2011-07-05 13:45:15 +0200 | [diff] [blame] | 565 | for (i = 0; handlers[i].id; ++i) { |
| 566 | h = &handlers[i]; |
| 567 | if (h->id == raw_data[0] && h->size < size) |
| 568 | h->func(wdata, &raw_data[1]); |
| 569 | } |
| 570 | |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 571 | spin_unlock_irqrestore(&wdata->state.lock, flags); |
| 572 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 573 | return 0; |
| 574 | } |
| 575 | |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 576 | static void wiimote_leds_destroy(struct wiimote_data *wdata) |
| 577 | { |
| 578 | int i; |
| 579 | struct led_classdev *led; |
| 580 | |
| 581 | for (i = 0; i < 4; ++i) { |
| 582 | if (wdata->leds[i]) { |
| 583 | led = wdata->leds[i]; |
| 584 | wdata->leds[i] = NULL; |
| 585 | led_classdev_unregister(led); |
| 586 | kfree(led); |
| 587 | } |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | static int wiimote_leds_create(struct wiimote_data *wdata) |
| 592 | { |
| 593 | int i, ret; |
| 594 | struct device *dev = &wdata->hdev->dev; |
| 595 | size_t namesz = strlen(dev_name(dev)) + 9; |
| 596 | struct led_classdev *led; |
| 597 | char *name; |
| 598 | |
| 599 | for (i = 0; i < 4; ++i) { |
| 600 | led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL); |
| 601 | if (!led) { |
| 602 | ret = -ENOMEM; |
| 603 | goto err; |
| 604 | } |
| 605 | name = (void*)&led[1]; |
| 606 | snprintf(name, namesz, "%s:blue:p%d", dev_name(dev), i); |
| 607 | led->name = name; |
| 608 | led->brightness = 0; |
| 609 | led->max_brightness = 1; |
| 610 | led->brightness_get = wiimote_leds_get; |
| 611 | led->brightness_set = wiimote_leds_set; |
| 612 | |
| 613 | ret = led_classdev_register(dev, led); |
| 614 | if (ret) { |
| 615 | kfree(led); |
| 616 | goto err; |
| 617 | } |
| 618 | wdata->leds[i] = led; |
| 619 | } |
| 620 | |
| 621 | return 0; |
| 622 | |
| 623 | err: |
| 624 | wiimote_leds_destroy(wdata); |
| 625 | return ret; |
| 626 | } |
| 627 | |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 628 | static struct wiimote_data *wiimote_create(struct hid_device *hdev) |
| 629 | { |
| 630 | struct wiimote_data *wdata; |
David Herrmann | 1abb9ad | 2011-07-05 13:45:16 +0200 | [diff] [blame] | 631 | int i; |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 632 | |
| 633 | wdata = kzalloc(sizeof(*wdata), GFP_KERNEL); |
| 634 | if (!wdata) |
| 635 | return NULL; |
| 636 | |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 637 | wdata->input = input_allocate_device(); |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 638 | if (!wdata->input) |
| 639 | goto err; |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 640 | |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 641 | wdata->hdev = hdev; |
| 642 | hid_set_drvdata(hdev, wdata); |
| 643 | |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 644 | input_set_drvdata(wdata->input, wdata); |
David Herrmann | 26af174 | 2011-08-17 11:43:21 +0200 | [diff] [blame] | 645 | wdata->input->open = wiimote_input_open; |
| 646 | wdata->input->close = wiimote_input_close; |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 647 | wdata->input->dev.parent = &wdata->hdev->dev; |
| 648 | wdata->input->id.bustype = wdata->hdev->bus; |
| 649 | wdata->input->id.vendor = wdata->hdev->vendor; |
| 650 | wdata->input->id.product = wdata->hdev->product; |
| 651 | wdata->input->id.version = wdata->hdev->version; |
| 652 | wdata->input->name = WIIMOTE_NAME; |
| 653 | |
David Herrmann | 1abb9ad | 2011-07-05 13:45:16 +0200 | [diff] [blame] | 654 | set_bit(EV_KEY, wdata->input->evbit); |
| 655 | for (i = 0; i < WIIPROTO_KEY_COUNT; ++i) |
| 656 | set_bit(wiiproto_keymap[i], wdata->input->keybit); |
| 657 | |
David Herrmann | d020be9 | 2011-09-06 13:50:27 +0200 | [diff] [blame] | 658 | set_bit(FF_RUMBLE, wdata->input->ffbit); |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 659 | if (input_ff_create_memless(wdata->input, NULL, wiimote_ff_play)) |
| 660 | goto err_input; |
| 661 | |
| 662 | wdata->accel = input_allocate_device(); |
| 663 | if (!wdata->accel) |
| 664 | goto err_input; |
| 665 | |
| 666 | input_set_drvdata(wdata->accel, wdata); |
| 667 | wdata->accel->open = wiimote_accel_open; |
| 668 | wdata->accel->close = wiimote_accel_close; |
| 669 | wdata->accel->dev.parent = &wdata->hdev->dev; |
| 670 | wdata->accel->id.bustype = wdata->hdev->bus; |
| 671 | wdata->accel->id.vendor = wdata->hdev->vendor; |
| 672 | wdata->accel->id.product = wdata->hdev->product; |
| 673 | wdata->accel->id.version = wdata->hdev->version; |
| 674 | wdata->accel->name = WIIMOTE_NAME " Accelerometer"; |
| 675 | |
| 676 | set_bit(EV_ABS, wdata->accel->evbit); |
| 677 | set_bit(ABS_RX, wdata->accel->absbit); |
| 678 | set_bit(ABS_RY, wdata->accel->absbit); |
| 679 | set_bit(ABS_RZ, wdata->accel->absbit); |
| 680 | input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4); |
| 681 | input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4); |
| 682 | input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4); |
David Herrmann | d020be9 | 2011-09-06 13:50:27 +0200 | [diff] [blame] | 683 | |
David Herrmann | 23c063c | 2011-07-05 13:45:14 +0200 | [diff] [blame] | 684 | spin_lock_init(&wdata->qlock); |
| 685 | INIT_WORK(&wdata->worker, wiimote_worker); |
| 686 | |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 687 | spin_lock_init(&wdata->state.lock); |
| 688 | |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 689 | return wdata; |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 690 | |
| 691 | err_input: |
| 692 | input_free_device(wdata->input); |
| 693 | err: |
| 694 | kfree(wdata); |
| 695 | return NULL; |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 696 | } |
| 697 | |
| 698 | static void wiimote_destroy(struct wiimote_data *wdata) |
| 699 | { |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 700 | wiimote_leds_destroy(wdata); |
David Herrmann | 3989ef6 | 2011-08-17 11:43:20 +0200 | [diff] [blame] | 701 | |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 702 | input_unregister_device(wdata->accel); |
David Herrmann | 3989ef6 | 2011-08-17 11:43:20 +0200 | [diff] [blame] | 703 | input_unregister_device(wdata->input); |
| 704 | cancel_work_sync(&wdata->worker); |
| 705 | hid_hw_stop(wdata->hdev); |
| 706 | |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 707 | kfree(wdata); |
| 708 | } |
| 709 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 710 | static int wiimote_hid_probe(struct hid_device *hdev, |
| 711 | const struct hid_device_id *id) |
| 712 | { |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 713 | struct wiimote_data *wdata; |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 714 | int ret; |
| 715 | |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 716 | wdata = wiimote_create(hdev); |
| 717 | if (!wdata) { |
| 718 | hid_err(hdev, "Can't alloc device\n"); |
| 719 | return -ENOMEM; |
| 720 | } |
| 721 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 722 | ret = hid_parse(hdev); |
| 723 | if (ret) { |
| 724 | hid_err(hdev, "HID parse failed\n"); |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 725 | goto err; |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 726 | } |
| 727 | |
| 728 | ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW); |
| 729 | if (ret) { |
| 730 | hid_err(hdev, "HW start failed\n"); |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 731 | goto err; |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 732 | } |
| 733 | |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 734 | ret = input_register_device(wdata->accel); |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 735 | if (ret) { |
| 736 | hid_err(hdev, "Cannot register input device\n"); |
| 737 | goto err_stop; |
| 738 | } |
| 739 | |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 740 | ret = input_register_device(wdata->input); |
| 741 | if (ret) { |
| 742 | hid_err(hdev, "Cannot register input device\n"); |
| 743 | goto err_input; |
| 744 | } |
| 745 | |
David Herrmann | 23a5a4a | 2011-08-17 11:43:22 +0200 | [diff] [blame] | 746 | ret = wiimote_leds_create(wdata); |
David Herrmann | 3989ef6 | 2011-08-17 11:43:20 +0200 | [diff] [blame] | 747 | if (ret) |
| 748 | goto err_free; |
| 749 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 750 | hid_info(hdev, "New device registered\n"); |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 751 | |
| 752 | /* by default set led1 after device initialization */ |
| 753 | spin_lock_irq(&wdata->state.lock); |
David Herrmann | db30834 | 2011-07-05 13:45:17 +0200 | [diff] [blame] | 754 | wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1); |
David Herrmann | 32a0d9a | 2011-07-05 13:45:18 +0200 | [diff] [blame] | 755 | spin_unlock_irq(&wdata->state.lock); |
| 756 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 757 | return 0; |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 758 | |
David Herrmann | 3989ef6 | 2011-08-17 11:43:20 +0200 | [diff] [blame] | 759 | err_free: |
| 760 | wiimote_destroy(wdata); |
| 761 | return ret; |
| 762 | |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 763 | err_input: |
| 764 | input_unregister_device(wdata->accel); |
| 765 | wdata->accel = NULL; |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 766 | err_stop: |
| 767 | hid_hw_stop(hdev); |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 768 | err: |
David Herrmann | 98a558a | 2011-09-06 13:50:28 +0200 | [diff] [blame] | 769 | input_free_device(wdata->accel); |
David Herrmann | 672bc4e | 2011-07-05 13:45:11 +0200 | [diff] [blame] | 770 | input_free_device(wdata->input); |
David Herrmann | 3989ef6 | 2011-08-17 11:43:20 +0200 | [diff] [blame] | 771 | kfree(wdata); |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 772 | return ret; |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | static void wiimote_hid_remove(struct hid_device *hdev) |
| 776 | { |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 777 | struct wiimote_data *wdata = hid_get_drvdata(hdev); |
| 778 | |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 779 | hid_info(hdev, "Device removed\n"); |
David Herrmann | e894d0e | 2011-07-05 13:45:10 +0200 | [diff] [blame] | 780 | wiimote_destroy(wdata); |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 781 | } |
| 782 | |
| 783 | static const struct hid_device_id wiimote_hid_devices[] = { |
| 784 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, |
| 785 | USB_DEVICE_ID_NINTENDO_WIIMOTE) }, |
| 786 | { } |
| 787 | }; |
| 788 | MODULE_DEVICE_TABLE(hid, wiimote_hid_devices); |
| 789 | |
| 790 | static struct hid_driver wiimote_hid_driver = { |
| 791 | .name = "wiimote", |
| 792 | .id_table = wiimote_hid_devices, |
| 793 | .probe = wiimote_hid_probe, |
| 794 | .remove = wiimote_hid_remove, |
| 795 | .raw_event = wiimote_hid_event, |
| 796 | }; |
| 797 | |
David Herrmann | fb51b44 | 2011-07-05 13:45:08 +0200 | [diff] [blame] | 798 | static int __init wiimote_init(void) |
| 799 | { |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 800 | int ret; |
| 801 | |
| 802 | ret = hid_register_driver(&wiimote_hid_driver); |
| 803 | if (ret) |
| 804 | pr_err("Can't register wiimote hid driver\n"); |
| 805 | |
| 806 | return ret; |
David Herrmann | fb51b44 | 2011-07-05 13:45:08 +0200 | [diff] [blame] | 807 | } |
| 808 | |
| 809 | static void __exit wiimote_exit(void) |
| 810 | { |
David Herrmann | 02fb72a | 2011-07-05 13:45:09 +0200 | [diff] [blame] | 811 | hid_unregister_driver(&wiimote_hid_driver); |
David Herrmann | fb51b44 | 2011-07-05 13:45:08 +0200 | [diff] [blame] | 812 | } |
| 813 | |
| 814 | module_init(wiimote_init); |
| 815 | module_exit(wiimote_exit); |
| 816 | MODULE_LICENSE("GPL"); |
| 817 | MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>"); |
| 818 | MODULE_DESCRIPTION(WIIMOTE_NAME " Device Driver"); |
| 819 | MODULE_VERSION(WIIMOTE_VERSION); |