1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * HID driver for Nintendo Wii / Wii U peripherals 4 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com> 5 */ 6 7/* 8 */ 9 10#include <linux/completion.h> 11#include <linux/device.h> 12#include <linux/hid.h> 13#include <linux/input.h> 14#include <linux/module.h> 15#include <linux/mutex.h> 16#include <linux/spinlock.h> 17#include "hid-ids.h" 18#include "hid-wiimote.h" 19 20/* output queue handling */ 21 22static int wiimote_hid_send(struct hid_device *hdev, __u8 *buffer, 23 size_t count) 24{ 25 __u8 *buf; 26 int ret; 27 28 if (!hdev->ll_driver->output_report) 29 return -ENODEV; 30 31 buf = kmemdup(buffer, count, GFP_KERNEL); 32 if (!buf) 33 return -ENOMEM; 34 35 ret = hid_hw_output_report(hdev, buf, count); 36 37 kfree(buf); 38 return ret; 39} 40 41static void wiimote_queue_worker(struct work_struct *work) 42{ 43 struct wiimote_queue *queue = container_of(work, struct wiimote_queue, 44 worker); 45 struct wiimote_data *wdata = container_of(queue, struct wiimote_data, 46 queue); 47 unsigned long flags; 48 int ret; 49 50 spin_lock_irqsave(&wdata->queue.lock, flags); 51 52 while (wdata->queue.head != wdata->queue.tail) { 53 spin_unlock_irqrestore(&wdata->queue.lock, flags); 54 ret = wiimote_hid_send(wdata->hdev, 55 wdata->queue.outq[wdata->queue.tail].data, 56 wdata->queue.outq[wdata->queue.tail].size); 57 if (ret < 0) { 58 spin_lock_irqsave(&wdata->state.lock, flags); 59 wiimote_cmd_abort(wdata); 60 spin_unlock_irqrestore(&wdata->state.lock, flags); 61 } 62 spin_lock_irqsave(&wdata->queue.lock, flags); 63 64 wdata->queue.tail = (wdata->queue.tail + 1) % WIIMOTE_BUFSIZE; 65 } 66 67 spin_unlock_irqrestore(&wdata->queue.lock, flags); 68} 69 70static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer, 71 size_t count) 72{ 73 unsigned long flags; 74 __u8 newhead; 75 76 if (count > HID_MAX_BUFFER_SIZE) { 77 hid_warn(wdata->hdev, "Sending too large output report\n"); 78 79 spin_lock_irqsave(&wdata->queue.lock, flags); 80 goto out_error; 81 } 82 83 /* 84 * Copy new request into our output queue and check whether the 85 * queue is full. If it is full, discard this request. 86 * If it is empty we need to start a new worker that will 87 * send out the buffer to the hid device. 88 * If the queue is not empty, then there must be a worker 89 * that is currently sending out our buffer and this worker 90 * will reschedule itself until the queue is empty. 91 */ 92 93 spin_lock_irqsave(&wdata->queue.lock, flags); 94 95 memcpy(wdata->queue.outq[wdata->queue.head].data, buffer, count); 96 wdata->queue.outq[wdata->queue.head].size = count; 97 newhead = (wdata->queue.head + 1) % WIIMOTE_BUFSIZE; 98 99 if (wdata->queue.head == wdata->queue.tail) { 100 wdata->queue.head = newhead; 101 schedule_work(&wdata->queue.worker); 102 } else if (newhead != wdata->queue.tail) { 103 wdata->queue.head = newhead; 104 } else { 105 hid_warn(wdata->hdev, "Output queue is full"); 106 goto out_error; 107 } 108 109 goto out_unlock; 110 111out_error: 112 wiimote_cmd_abort(wdata); 113out_unlock: 114 spin_unlock_irqrestore(&wdata->queue.lock, flags); 115} 116 117/* 118 * This sets the rumble bit on the given output report if rumble is 119 * currently enabled. 120 * \cmd1 must point to the second byte in the output report => &cmd[1] 121 * This must be called on nearly every output report before passing it 122 * into the output queue! 123 */ 124static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1) 125{ 126 if (wdata->state.flags & WIIPROTO_FLAG_RUMBLE) 127 *cmd1 |= 0x01; 128} 129 130void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble) 131{ 132 __u8 cmd[2]; 133 134 rumble = !!rumble; 135 if (rumble == !!(wdata->state.flags & WIIPROTO_FLAG_RUMBLE)) 136 return; 137 138 if (rumble) 139 wdata->state.flags |= WIIPROTO_FLAG_RUMBLE; 140 else 141 wdata->state.flags &= ~WIIPROTO_FLAG_RUMBLE; 142 143 cmd[0] = WIIPROTO_REQ_RUMBLE; 144 cmd[1] = 0; 145 146 wiiproto_keep_rumble(wdata, &cmd[1]); 147 wiimote_queue(wdata, cmd, sizeof(cmd)); 148} 149 150void wiiproto_req_leds(struct wiimote_data *wdata, int leds) 151{ 152 __u8 cmd[2]; 153 154 leds &= WIIPROTO_FLAGS_LEDS; 155 if ((wdata->state.flags & WIIPROTO_FLAGS_LEDS) == leds) 156 return; 157 wdata->state.flags = (wdata->state.flags & ~WIIPROTO_FLAGS_LEDS) | leds; 158 159 cmd[0] = WIIPROTO_REQ_LED; 160 cmd[1] = 0; 161 162 if (leds & WIIPROTO_FLAG_LED1) 163 cmd[1] |= 0x10; 164 if (leds & WIIPROTO_FLAG_LED2) 165 cmd[1] |= 0x20; 166 if (leds & WIIPROTO_FLAG_LED3) 167 cmd[1] |= 0x40; 168 if (leds & WIIPROTO_FLAG_LED4) 169 cmd[1] |= 0x80; 170 171 wiiproto_keep_rumble(wdata, &cmd[1]); 172 wiimote_queue(wdata, cmd, sizeof(cmd)); 173} 174 175/* 176 * Check what peripherals of the wiimote are currently 177 * active and select a proper DRM that supports all of 178 * the requested data inputs. 179 * 180 * Not all combinations are actually supported. The following 181 * combinations work only with limitations: 182 * - IR cam in extended or full mode disables any data transmission 183 * of extension controllers. There is no DRM mode that supports 184 * extension bytes plus extended/full IR. 185 * - IR cam with accelerometer and extension *_EXT8 is not supported. 186 * However, all extensions that need *_EXT8 are devices that don't 187 * support IR cameras. Hence, this shouldn't happen under normal 188 * operation. 189 * - *_EXT16 is only supported in combination with buttons and 190 * accelerometer. No IR or similar can be active simultaneously. As 191 * above, all modules that require it are mutually exclusive with 192 * IR/etc. so this doesn't matter. 193 */ 194static __u8 select_drm(struct wiimote_data *wdata) 195{ 196 __u8 ir = wdata->state.flags & WIIPROTO_FLAGS_IR; 197 bool ext; 198 199 ext = (wdata->state.flags & WIIPROTO_FLAG_EXT_USED) || 200 (wdata->state.flags & WIIPROTO_FLAG_MP_USED); 201 202 /* some 3rd-party balance-boards are hard-coded to KEE, *sigh* */ 203 if (wdata->state.devtype == WIIMOTE_DEV_BALANCE_BOARD) { 204 if (ext) 205 return WIIPROTO_REQ_DRM_KEE; 206 else 207 return WIIPROTO_REQ_DRM_K; 208 } 209 210 if (ir == WIIPROTO_FLAG_IR_BASIC) { 211 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) { 212 /* GEN10 and ealier devices bind IR formats to DRMs. 213 * Hence, we cannot use DRM_KAI here as it might be 214 * bound to IR_EXT. Use DRM_KAIE unconditionally so we 215 * work with all devices and our parsers can use the 216 * fixed formats, too. */ 217 return WIIPROTO_REQ_DRM_KAIE; 218 } else { 219 return WIIPROTO_REQ_DRM_KIE; 220 } 221 } else if (ir == WIIPROTO_FLAG_IR_EXT) { 222 return WIIPROTO_REQ_DRM_KAI; 223 } else if (ir == WIIPROTO_FLAG_IR_FULL) { 224 return WIIPROTO_REQ_DRM_SKAI1; 225 } else { 226 if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) { 227 if (ext) 228 return WIIPROTO_REQ_DRM_KAE; 229 else 230 return WIIPROTO_REQ_DRM_KA; 231 } else { 232 if (ext) 233 return WIIPROTO_REQ_DRM_KEE; 234 else 235 return WIIPROTO_REQ_DRM_K; 236 } 237 } 238} 239 240void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm) 241{ 242 __u8 cmd[3]; 243 244 if (wdata->state.flags & WIIPROTO_FLAG_DRM_LOCKED) 245 drm = wdata->state.drm; 246 else if (drm == WIIPROTO_REQ_NULL) 247 drm = select_drm(wdata); 248 249 cmd[0] = WIIPROTO_REQ_DRM; 250 cmd[1] = 0; 251 cmd[2] = drm; 252 253 wdata->state.drm = drm; 254 wiiproto_keep_rumble(wdata, &cmd[1]); 255 wiimote_queue(wdata, cmd, sizeof(cmd)); 256} 257 258void wiiproto_req_status(struct wiimote_data *wdata) 259{ 260 __u8 cmd[2]; 261 262 cmd[0] = WIIPROTO_REQ_SREQ; 263 cmd[1] = 0; 264 265 wiiproto_keep_rumble(wdata, &cmd[1]); 266 wiimote_queue(wdata, cmd, sizeof(cmd)); 267} 268 269void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel) 270{ 271 accel = !!accel; 272 if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL)) 273 return; 274 275 if (accel) 276 wdata->state.flags |= WIIPROTO_FLAG_ACCEL; 277 else 278 wdata->state.flags &= ~WIIPROTO_FLAG_ACCEL; 279 280 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); 281} 282 283void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags) 284{ 285 __u8 cmd[2]; 286 287 cmd[0] = WIIPROTO_REQ_IR1; 288 cmd[1] = flags; 289 290 wiiproto_keep_rumble(wdata, &cmd[1]); 291 wiimote_queue(wdata, cmd, sizeof(cmd)); 292} 293 294void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags) 295{ 296 __u8 cmd[2]; 297 298 cmd[0] = WIIPROTO_REQ_IR2; 299 cmd[1] = flags; 300 301 wiiproto_keep_rumble(wdata, &cmd[1]); 302 wiimote_queue(wdata, cmd, sizeof(cmd)); 303} 304 305#define wiiproto_req_wreg(wdata, os, buf, sz) \ 306 wiiproto_req_wmem((wdata), false, (os), (buf), (sz)) 307 308#define wiiproto_req_weeprom(wdata, os, buf, sz) \ 309 wiiproto_req_wmem((wdata), true, (os), (buf), (sz)) 310 311static void wiiproto_req_wmem(struct wiimote_data *wdata, bool eeprom, 312 __u32 offset, const __u8 *buf, __u8 size) 313{ 314 __u8 cmd[22]; 315 316 if (size > 16 || size == 0) { 317 hid_warn(wdata->hdev, "Invalid length %d wmem request\n", size); 318 return; 319 } 320 321 memset(cmd, 0, sizeof(cmd)); 322 cmd[0] = WIIPROTO_REQ_WMEM; 323 cmd[2] = (offset >> 16) & 0xff; 324 cmd[3] = (offset >> 8) & 0xff; 325 cmd[4] = offset & 0xff; 326 cmd[5] = size; 327 memcpy(&cmd[6], buf, size); 328 329 if (!eeprom) 330 cmd[1] |= 0x04; 331 332 wiiproto_keep_rumble(wdata, &cmd[1]); 333 wiimote_queue(wdata, cmd, sizeof(cmd)); 334} 335 336void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom, __u32 offset, 337 __u16 size) 338{ 339 __u8 cmd[7]; 340 341 if (size == 0) { 342 hid_warn(wdata->hdev, "Invalid length %d rmem request\n", size); 343 return; 344 } 345 346 cmd[0] = WIIPROTO_REQ_RMEM; 347 cmd[1] = 0; 348 cmd[2] = (offset >> 16) & 0xff; 349 cmd[3] = (offset >> 8) & 0xff; 350 cmd[4] = offset & 0xff; 351 cmd[5] = (size >> 8) & 0xff; 352 cmd[6] = size & 0xff; 353 354 if (!eeprom) 355 cmd[1] |= 0x04; 356 357 wiiproto_keep_rumble(wdata, &cmd[1]); 358 wiimote_queue(wdata, cmd, sizeof(cmd)); 359} 360 361/* requries the cmd-mutex to be held */ 362int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, 363 const __u8 *wmem, __u8 size) 364{ 365 unsigned long flags; 366 int ret; 367 368 spin_lock_irqsave(&wdata->state.lock, flags); 369 wiimote_cmd_set(wdata, WIIPROTO_REQ_WMEM, 0); 370 wiiproto_req_wreg(wdata, offset, wmem, size); 371 spin_unlock_irqrestore(&wdata->state.lock, flags); 372 373 ret = wiimote_cmd_wait(wdata); 374 if (!ret && wdata->state.cmd_err) 375 ret = -EIO; 376 377 return ret; 378} 379 380/* requries the cmd-mutex to be held */ 381ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, __u8 *rmem, 382 __u8 size) 383{ 384 unsigned long flags; 385 ssize_t ret; 386 387 spin_lock_irqsave(&wdata->state.lock, flags); 388 wdata->state.cmd_read_size = size; 389 wdata->state.cmd_read_buf = rmem; 390 wiimote_cmd_set(wdata, WIIPROTO_REQ_RMEM, offset & 0xffff); 391 wiiproto_req_rreg(wdata, offset, size); 392 spin_unlock_irqrestore(&wdata->state.lock, flags); 393 394 ret = wiimote_cmd_wait(wdata); 395 396 spin_lock_irqsave(&wdata->state.lock, flags); 397 wdata->state.cmd_read_buf = NULL; 398 spin_unlock_irqrestore(&wdata->state.lock, flags); 399 400 if (!ret) { 401 if (wdata->state.cmd_read_size == 0) 402 ret = -EIO; 403 else 404 ret = wdata->state.cmd_read_size; 405 } 406 407 return ret; 408} 409 410/* requires the cmd-mutex to be held */ 411static int wiimote_cmd_init_ext(struct wiimote_data *wdata) 412{ 413 __u8 wmem; 414 int ret; 415 416 /* initialize extension */ 417 wmem = 0x55; 418 ret = wiimote_cmd_write(wdata, 0xa400f0, &wmem, sizeof(wmem)); 419 if (ret) 420 return ret; 421 422 /* disable default encryption */ 423 wmem = 0x0; 424 ret = wiimote_cmd_write(wdata, 0xa400fb, &wmem, sizeof(wmem)); 425 if (ret) 426 return ret; 427 428 return 0; 429} 430 431/* requires the cmd-mutex to be held */ 432static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata, __u8 *rmem) 433{ 434 int ret; 435 436 /* read extension ID */ 437 ret = wiimote_cmd_read(wdata, 0xa400fa, rmem, 6); 438 if (ret != 6) 439 return WIIMOTE_EXT_NONE; 440 441 hid_dbg(wdata->hdev, "extension ID: %6phC\n", rmem); 442 443 if (rmem[0] == 0xff && rmem[1] == 0xff && rmem[2] == 0xff && 444 rmem[3] == 0xff && rmem[4] == 0xff && rmem[5] == 0xff) 445 return WIIMOTE_EXT_NONE; 446 447 if (rmem[4] == 0x00 && rmem[5] == 0x00) 448 return WIIMOTE_EXT_NUNCHUK; 449 if (rmem[4] == 0x01 && rmem[5] == 0x01) 450 return WIIMOTE_EXT_CLASSIC_CONTROLLER; 451 if (rmem[4] == 0x04 && rmem[5] == 0x02) 452 return WIIMOTE_EXT_BALANCE_BOARD; 453 if (rmem[4] == 0x01 && rmem[5] == 0x20) 454 return WIIMOTE_EXT_PRO_CONTROLLER; 455 if (rmem[0] == 0x01 && rmem[1] == 0x00 && 456 rmem[4] == 0x01 && rmem[5] == 0x03) 457 return WIIMOTE_EXT_DRUMS; 458 if (rmem[0] == 0x00 && rmem[1] == 0x00 && 459 rmem[4] == 0x01 && rmem[5] == 0x03) 460 return WIIMOTE_EXT_GUITAR; 461 462 return WIIMOTE_EXT_UNKNOWN; 463} 464 465/* requires the cmd-mutex to be held */ 466static int wiimote_cmd_init_mp(struct wiimote_data *wdata) 467{ 468 __u8 wmem; 469 int ret; 470 471 /* initialize MP */ 472 wmem = 0x55; 473 ret = wiimote_cmd_write(wdata, 0xa600f0, &wmem, sizeof(wmem)); 474 if (ret) 475 return ret; 476 477 /* disable default encryption */ 478 wmem = 0x0; 479 ret = wiimote_cmd_write(wdata, 0xa600fb, &wmem, sizeof(wmem)); 480 if (ret) 481 return ret; 482 483 return 0; 484} 485 486/* requires the cmd-mutex to be held */ 487static bool wiimote_cmd_map_mp(struct wiimote_data *wdata, __u8 exttype) 488{ 489 __u8 wmem; 490 491 /* map MP with correct pass-through mode */ 492 switch (exttype) { 493 case WIIMOTE_EXT_CLASSIC_CONTROLLER: 494 case WIIMOTE_EXT_DRUMS: 495 case WIIMOTE_EXT_GUITAR: 496 wmem = 0x07; 497 break; 498 case WIIMOTE_EXT_NUNCHUK: 499 wmem = 0x05; 500 break; 501 default: 502 wmem = 0x04; 503 break; 504 } 505 506 return wiimote_cmd_write(wdata, 0xa600fe, &wmem, sizeof(wmem)); 507} 508 509/* requires the cmd-mutex to be held */ 510static bool wiimote_cmd_read_mp(struct wiimote_data *wdata, __u8 *rmem) 511{ 512 int ret; 513 514 /* read motion plus ID */ 515 ret = wiimote_cmd_read(wdata, 0xa600fa, rmem, 6); 516 if (ret != 6) 517 return false; 518 519 hid_dbg(wdata->hdev, "motion plus ID: %6phC\n", rmem); 520 521 if (rmem[5] == 0x05) 522 return true; 523 524 hid_info(wdata->hdev, "unknown motion plus ID: %6phC\n", rmem); 525 526 return false; 527} 528 529/* requires the cmd-mutex to be held */ 530static __u8 wiimote_cmd_read_mp_mapped(struct wiimote_data *wdata) 531{ 532 int ret; 533 __u8 rmem[6]; 534 535 /* read motion plus ID */ 536 ret = wiimote_cmd_read(wdata, 0xa400fa, rmem, 6); 537 if (ret != 6) 538 return WIIMOTE_MP_NONE; 539 540 hid_dbg(wdata->hdev, "mapped motion plus ID: %6phC\n", rmem); 541 542 if (rmem[0] == 0xff && rmem[1] == 0xff && rmem[2] == 0xff && 543 rmem[3] == 0xff && rmem[4] == 0xff && rmem[5] == 0xff) 544 return WIIMOTE_MP_NONE; 545 546 if (rmem[4] == 0x04 && rmem[5] == 0x05) 547 return WIIMOTE_MP_SINGLE; 548 else if (rmem[4] == 0x05 && rmem[5] == 0x05) 549 return WIIMOTE_MP_PASSTHROUGH_NUNCHUK; 550 else if (rmem[4] == 0x07 && rmem[5] == 0x05) 551 return WIIMOTE_MP_PASSTHROUGH_CLASSIC; 552 553 return WIIMOTE_MP_UNKNOWN; 554} 555 556/* device module handling */ 557 558static const __u8 * const wiimote_devtype_mods[WIIMOTE_DEV_NUM] = { 559 [WIIMOTE_DEV_PENDING] = (const __u8[]){ 560 WIIMOD_NULL, 561 }, 562 [WIIMOTE_DEV_UNKNOWN] = (const __u8[]){ 563 WIIMOD_NO_MP, 564 WIIMOD_NULL, 565 }, 566 [WIIMOTE_DEV_GENERIC] = (const __u8[]){ 567 WIIMOD_KEYS, 568 WIIMOD_RUMBLE, 569 WIIMOD_BATTERY, 570 WIIMOD_LED1, 571 WIIMOD_LED2, 572 WIIMOD_LED3, 573 WIIMOD_LED4, 574 WIIMOD_ACCEL, 575 WIIMOD_IR, 576 WIIMOD_NULL, 577 }, 578 [WIIMOTE_DEV_GEN10] = (const __u8[]){ 579 WIIMOD_KEYS, 580 WIIMOD_RUMBLE, 581 WIIMOD_BATTERY, 582 WIIMOD_LED1, 583 WIIMOD_LED2, 584 WIIMOD_LED3, 585 WIIMOD_LED4, 586 WIIMOD_ACCEL, 587 WIIMOD_IR, 588 WIIMOD_NULL, 589 }, 590 [WIIMOTE_DEV_GEN20] = (const __u8[]){ 591 WIIMOD_KEYS, 592 WIIMOD_RUMBLE, 593 WIIMOD_BATTERY, 594 WIIMOD_LED1, 595 WIIMOD_LED2, 596 WIIMOD_LED3, 597 WIIMOD_LED4, 598 WIIMOD_ACCEL, 599 WIIMOD_IR, 600 WIIMOD_BUILTIN_MP, 601 WIIMOD_NULL, 602 }, 603 [WIIMOTE_DEV_BALANCE_BOARD] = (const __u8[]) { 604 WIIMOD_BATTERY, 605 WIIMOD_LED1, 606 WIIMOD_NO_MP, 607 WIIMOD_NULL, 608 }, 609 [WIIMOTE_DEV_PRO_CONTROLLER] = (const __u8[]) { 610 WIIMOD_BATTERY, 611 WIIMOD_LED1, 612 WIIMOD_LED2, 613 WIIMOD_LED3, 614 WIIMOD_LED4, 615 WIIMOD_NO_MP, 616 WIIMOD_NULL, 617 }, 618}; 619 620static void wiimote_modules_load(struct wiimote_data *wdata, 621 unsigned int devtype) 622{ 623 bool need_input = false; 624 const __u8 *mods, *iter; 625 const struct wiimod_ops *ops; 626 int ret; 627 628 mods = wiimote_devtype_mods[devtype]; 629 630 for (iter = mods; *iter != WIIMOD_NULL; ++iter) { 631 if (wiimod_table[*iter]->flags & WIIMOD_FLAG_INPUT) { 632 need_input = true; 633 break; 634 } 635 } 636 637 if (need_input) { 638 wdata->input = input_allocate_device(); 639 if (!wdata->input) 640 return; 641 642 input_set_drvdata(wdata->input, wdata); 643 wdata->input->dev.parent = &wdata->hdev->dev; 644 wdata->input->id.bustype = wdata->hdev->bus; 645 wdata->input->id.vendor = wdata->hdev->vendor; 646 wdata->input->id.product = wdata->hdev->product; 647 wdata->input->id.version = wdata->hdev->version; 648 wdata->input->name = WIIMOTE_NAME; 649 } 650 651 for (iter = mods; *iter != WIIMOD_NULL; ++iter) { 652 ops = wiimod_table[*iter]; 653 if (!ops->probe) 654 continue; 655 656 ret = ops->probe(ops, wdata); 657 if (ret) 658 goto error; 659 } 660 661 if (wdata->input) { 662 ret = input_register_device(wdata->input); 663 if (ret) 664 goto error; 665 } 666 667 spin_lock_irq(&wdata->state.lock); 668 wdata->state.devtype = devtype; 669 spin_unlock_irq(&wdata->state.lock); 670 return; 671 672error: 673 for ( ; iter-- != mods; ) { 674 ops = wiimod_table[*iter]; 675 if (ops->remove) 676 ops->remove(ops, wdata); 677 } 678 679 if (wdata->input) { 680 input_free_device(wdata->input); 681 wdata->input = NULL; 682 } 683} 684 685static void wiimote_modules_unload(struct wiimote_data *wdata) 686{ 687 const __u8 *mods, *iter; 688 const struct wiimod_ops *ops; 689 unsigned long flags; 690 691 mods = wiimote_devtype_mods[wdata->state.devtype]; 692 693 spin_lock_irqsave(&wdata->state.lock, flags); 694 wdata->state.devtype = WIIMOTE_DEV_UNKNOWN; 695 spin_unlock_irqrestore(&wdata->state.lock, flags); 696 697 /* find end of list */ 698 for (iter = mods; *iter != WIIMOD_NULL; ++iter) 699 /* empty */ ; 700 701 if (wdata->input) { 702 input_get_device(wdata->input); 703 input_unregister_device(wdata->input); 704 } 705 706 for ( ; iter-- != mods; ) { 707 ops = wiimod_table[*iter]; 708 if (ops->remove) 709 ops->remove(ops, wdata); 710 } 711 712 if (wdata->input) { 713 input_put_device(wdata->input); 714 wdata->input = NULL; 715 } 716} 717 718/* device extension handling */ 719 720static void wiimote_ext_load(struct wiimote_data *wdata, unsigned int ext) 721{ 722 unsigned long flags; 723 const struct wiimod_ops *ops; 724 int ret; 725 726 ops = wiimod_ext_table[ext]; 727 728 if (ops->probe) { 729 ret = ops->probe(ops, wdata); 730 if (ret) 731 ext = WIIMOTE_EXT_UNKNOWN; 732 } 733 734 spin_lock_irqsave(&wdata->state.lock, flags); 735 wdata->state.exttype = ext; 736 spin_unlock_irqrestore(&wdata->state.lock, flags); 737} 738 739static void wiimote_ext_unload(struct wiimote_data *wdata) 740{ 741 unsigned long flags; 742 const struct wiimod_ops *ops; 743 744 ops = wiimod_ext_table[wdata->state.exttype]; 745 746 spin_lock_irqsave(&wdata->state.lock, flags); 747 wdata->state.exttype = WIIMOTE_EXT_UNKNOWN; 748 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED; 749 spin_unlock_irqrestore(&wdata->state.lock, flags); 750 751 if (ops->remove) 752 ops->remove(ops, wdata); 753} 754 755static void wiimote_mp_load(struct wiimote_data *wdata) 756{ 757 unsigned long flags; 758 const struct wiimod_ops *ops; 759 int ret; 760 __u8 mode = 2; 761 762 ops = &wiimod_mp; 763 if (ops->probe) { 764 ret = ops->probe(ops, wdata); 765 if (ret) 766 mode = 1; 767 } 768 769 spin_lock_irqsave(&wdata->state.lock, flags); 770 wdata->state.mp = mode; 771 spin_unlock_irqrestore(&wdata->state.lock, flags); 772} 773 774static void wiimote_mp_unload(struct wiimote_data *wdata) 775{ 776 unsigned long flags; 777 const struct wiimod_ops *ops; 778 779 if (wdata->state.mp < 2) 780 return; 781 782 ops = &wiimod_mp; 783 784 spin_lock_irqsave(&wdata->state.lock, flags); 785 wdata->state.mp = 0; 786 wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED; 787 spin_unlock_irqrestore(&wdata->state.lock, flags); 788 789 if (ops->remove) 790 ops->remove(ops, wdata); 791} 792 793/* device (re-)initialization and detection */ 794 795static const char *wiimote_devtype_names[WIIMOTE_DEV_NUM] = { 796 [WIIMOTE_DEV_PENDING] = "Pending", 797 [WIIMOTE_DEV_UNKNOWN] = "Unknown", 798 [WIIMOTE_DEV_GENERIC] = "Generic", 799 [WIIMOTE_DEV_GEN10] = "Nintendo Wii Remote (Gen 1)", 800 [WIIMOTE_DEV_GEN20] = "Nintendo Wii Remote Plus (Gen 2)", 801 [WIIMOTE_DEV_BALANCE_BOARD] = "Nintendo Wii Balance Board", 802 [WIIMOTE_DEV_PRO_CONTROLLER] = "Nintendo Wii U Pro Controller", 803}; 804 805/* Try to guess the device type based on all collected information. We 806 * first try to detect by static extension types, then VID/PID and the 807 * device name. If we cannot detect the device, we use 808 * WIIMOTE_DEV_GENERIC so all modules will get probed on the device. */ 809static void wiimote_init_set_type(struct wiimote_data *wdata, 810 __u8 exttype) 811{ 812 __u8 devtype = WIIMOTE_DEV_GENERIC; 813 __u16 vendor, product; 814 const char *name; 815 816 vendor = wdata->hdev->vendor; 817 product = wdata->hdev->product; 818 name = wdata->hdev->name; 819 820 if (exttype == WIIMOTE_EXT_BALANCE_BOARD) { 821 devtype = WIIMOTE_DEV_BALANCE_BOARD; 822 goto done; 823 } else if (exttype == WIIMOTE_EXT_PRO_CONTROLLER) { 824 devtype = WIIMOTE_DEV_PRO_CONTROLLER; 825 goto done; 826 } 827 828 if (!strcmp(name, "Nintendo RVL-CNT-01")) { 829 devtype = WIIMOTE_DEV_GEN10; 830 goto done; 831 } else if (!strcmp(name, "Nintendo RVL-CNT-01-TR")) { 832 devtype = WIIMOTE_DEV_GEN20; 833 goto done; 834 } else if (!strcmp(name, "Nintendo RVL-WBC-01")) { 835 devtype = WIIMOTE_DEV_BALANCE_BOARD; 836 goto done; 837 } else if (!strcmp(name, "Nintendo RVL-CNT-01-UC")) { 838 devtype = WIIMOTE_DEV_PRO_CONTROLLER; 839 goto done; 840 } 841 842 if (vendor == USB_VENDOR_ID_NINTENDO) { 843 if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE) { 844 devtype = WIIMOTE_DEV_GEN10; 845 goto done; 846 } else if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE2) { 847 devtype = WIIMOTE_DEV_GEN20; 848 goto done; 849 } 850 } 851 852done: 853 if (devtype == WIIMOTE_DEV_GENERIC) 854 hid_info(wdata->hdev, "cannot detect device; NAME: %s VID: %04x PID: %04x EXT: %04x\n", 855 name, vendor, product, exttype); 856 else 857 hid_info(wdata->hdev, "detected device: %s\n", 858 wiimote_devtype_names[devtype]); 859 860 wiimote_modules_load(wdata, devtype); 861} 862 863static void wiimote_init_detect(struct wiimote_data *wdata) 864{ 865 __u8 exttype = WIIMOTE_EXT_NONE, extdata[6]; 866 bool ext; 867 int ret; 868 869 wiimote_cmd_acquire_noint(wdata); 870 871 spin_lock_irq(&wdata->state.lock); 872 wdata->state.devtype = WIIMOTE_DEV_UNKNOWN; 873 wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0); 874 wiiproto_req_status(wdata); 875 spin_unlock_irq(&wdata->state.lock); 876 877 ret = wiimote_cmd_wait_noint(wdata); 878 if (ret) 879 goto out_release; 880 881 spin_lock_irq(&wdata->state.lock); 882 ext = wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED; 883 spin_unlock_irq(&wdata->state.lock); 884 885 if (!ext) 886 goto out_release; 887 888 wiimote_cmd_init_ext(wdata); 889 exttype = wiimote_cmd_read_ext(wdata, extdata); 890 891out_release: 892 wiimote_cmd_release(wdata); 893 wiimote_init_set_type(wdata, exttype); 894 895 /* schedule MP timer */ 896 spin_lock_irq(&wdata->state.lock); 897 if (!(wdata->state.flags & WIIPROTO_FLAG_BUILTIN_MP) && 898 !(wdata->state.flags & WIIPROTO_FLAG_NO_MP)) 899 mod_timer(&wdata->timer, jiffies + HZ * 4); 900 spin_unlock_irq(&wdata->state.lock); 901} 902 903/* 904 * MP hotplug events are not generated by the wiimote. Therefore, we need 905 * polling to detect it. We use a 4s interval for polling MP registers. This 906 * seems reasonable considering applications can trigger it manually via 907 * sysfs requests. 908 */ 909static void wiimote_init_poll_mp(struct wiimote_data *wdata) 910{ 911 bool mp; 912 __u8 mpdata[6]; 913 914 wiimote_cmd_acquire_noint(wdata); 915 wiimote_cmd_init_mp(wdata); 916 mp = wiimote_cmd_read_mp(wdata, mpdata); 917 wiimote_cmd_release(wdata); 918 919 /* load/unload MP module if it changed */ 920 if (mp) { 921 if (!wdata->state.mp) { 922 hid_info(wdata->hdev, "detected extension: Nintendo Wii Motion Plus\n"); 923 wiimote_mp_load(wdata); 924 } 925 } else if (wdata->state.mp) { 926 wiimote_mp_unload(wdata); 927 } 928 929 mod_timer(&wdata->timer, jiffies + HZ * 4); 930} 931 932/* 933 * Check whether the wiimote is in the expected state. The extension registers 934 * may change during hotplug and initialization so we might get hotplug events 935 * that we caused by remapping some memory. 936 * We use some heuristics here to check known states. If the wiimote is in the 937 * expected state, we can ignore the hotplug event. 938 * 939 * Returns "true" if the device is in expected state, "false" if we should 940 * redo hotplug handling and extension initialization. 941 */ 942static bool wiimote_init_check(struct wiimote_data *wdata) 943{ 944 __u32 flags; 945 __u8 type, data[6]; 946 bool ret, poll_mp; 947 948 spin_lock_irq(&wdata->state.lock); 949 flags = wdata->state.flags; 950 spin_unlock_irq(&wdata->state.lock); 951 952 wiimote_cmd_acquire_noint(wdata); 953 954 /* If MP is used and active, but the extension is not, we expect: 955 * read_mp_mapped() == WIIMOTE_MP_SINGLE 956 * state.flags == !EXT_ACTIVE && !MP_PLUGGED && MP_ACTIVE 957 * We do not check EXT_PLUGGED because it might change during 958 * initialization of MP without extensions. 959 * - If MP is unplugged/replugged, read_mp_mapped() fails 960 * - If EXT is plugged, MP_PLUGGED will get set */ 961 if (wdata->state.exttype == WIIMOTE_EXT_NONE && 962 wdata->state.mp > 0 && (flags & WIIPROTO_FLAG_MP_USED)) { 963 type = wiimote_cmd_read_mp_mapped(wdata); 964 ret = type == WIIMOTE_MP_SINGLE; 965 966 spin_lock_irq(&wdata->state.lock); 967 ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE); 968 ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED); 969 ret = ret && (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE); 970 spin_unlock_irq(&wdata->state.lock); 971 972 if (!ret) 973 hid_dbg(wdata->hdev, "state left: !EXT && MP\n"); 974 975 /* while MP is mapped, we get EXT_PLUGGED events */ 976 poll_mp = false; 977 978 goto out_release; 979 } 980 981 /* If MP is unused, but the extension port is used, we expect: 982 * read_ext == state.exttype 983 * state.flags == !MP_ACTIVE && EXT_ACTIVE 984 * - If MP is plugged/unplugged, our timer detects it 985 * - If EXT is unplugged/replugged, EXT_ACTIVE will become unset */ 986 if (!(flags & WIIPROTO_FLAG_MP_USED) && 987 wdata->state.exttype != WIIMOTE_EXT_NONE) { 988 type = wiimote_cmd_read_ext(wdata, data); 989 ret = type == wdata->state.exttype; 990 991 spin_lock_irq(&wdata->state.lock); 992 ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE); 993 ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE); 994 spin_unlock_irq(&wdata->state.lock); 995 996 if (!ret) 997 hid_dbg(wdata->hdev, "state left: EXT && !MP\n"); 998 999 /* poll MP for hotplug events */ 1000 poll_mp = true; 1001 1002 goto out_release; 1003 } 1004 1005 /* If neither MP nor an extension are used, we expect: 1006 * read_ext() == WIIMOTE_EXT_NONE 1007 * state.flags == !MP_ACTIVE && !EXT_ACTIVE && !EXT_PLUGGED 1008 * No need to perform any action in this case as everything is 1009 * disabled already. 1010 * - If MP is plugged/unplugged, our timer detects it 1011 * - If EXT is plugged, EXT_PLUGGED will be set */ 1012 if (!(flags & WIIPROTO_FLAG_MP_USED) && 1013 wdata->state.exttype == WIIMOTE_EXT_NONE) { 1014 type = wiimote_cmd_read_ext(wdata, data); 1015 ret = type == wdata->state.exttype; 1016 1017 spin_lock_irq(&wdata->state.lock); 1018 ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE); 1019 ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE); 1020 ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED); 1021 spin_unlock_irq(&wdata->state.lock); 1022 1023 if (!ret) 1024 hid_dbg(wdata->hdev, "state left: !EXT && !MP\n"); 1025 1026 /* poll MP for hotplug events */ 1027 poll_mp = true; 1028 1029 goto out_release; 1030 } 1031 1032 /* The trickiest part is if both EXT and MP are active. We cannot read 1033 * the EXT ID, anymore, because MP is mapped over it. However, we use 1034 * a handy trick here: 1035 * - EXT_ACTIVE is unset whenever !MP_PLUGGED is sent 1036 * MP_PLUGGED might be re-sent again before we are scheduled, but 1037 * EXT_ACTIVE will stay unset. 1038 * So it is enough to check for mp_mapped() and MP_ACTIVE and 1039 * EXT_ACTIVE. EXT_PLUGGED is a sanity check. */ 1040 if (wdata->state.exttype != WIIMOTE_EXT_NONE && 1041 wdata->state.mp > 0 && (flags & WIIPROTO_FLAG_MP_USED)) { 1042 type = wiimote_cmd_read_mp_mapped(wdata); 1043 ret = type != WIIMOTE_MP_NONE; 1044 ret = ret && type != WIIMOTE_MP_UNKNOWN; 1045 ret = ret && type != WIIMOTE_MP_SINGLE; 1046 1047 spin_lock_irq(&wdata->state.lock); 1048 ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED); 1049 ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE); 1050 ret = ret && (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE); 1051 spin_unlock_irq(&wdata->state.lock); 1052 1053 if (!ret) 1054 hid_dbg(wdata->hdev, "state left: EXT && MP\n"); 1055 1056 /* while MP is mapped, we get EXT_PLUGGED events */ 1057 poll_mp = false; 1058 1059 goto out_release; 1060 } 1061 1062 /* unknown state */ 1063 ret = false; 1064 1065out_release: 1066 wiimote_cmd_release(wdata); 1067 1068 /* only poll for MP if requested and if state didn't change */ 1069 if (ret && poll_mp && !(flags & WIIPROTO_FLAG_BUILTIN_MP) && 1070 !(flags & WIIPROTO_FLAG_NO_MP)) 1071 wiimote_init_poll_mp(wdata); 1072 1073 return ret; 1074} 1075 1076static const char *wiimote_exttype_names[WIIMOTE_EXT_NUM] = { 1077 [WIIMOTE_EXT_NONE] = "None", 1078 [WIIMOTE_EXT_UNKNOWN] = "Unknown", 1079 [WIIMOTE_EXT_NUNCHUK] = "Nintendo Wii Nunchuk", 1080 [WIIMOTE_EXT_CLASSIC_CONTROLLER] = "Nintendo Wii Classic Controller", 1081 [WIIMOTE_EXT_BALANCE_BOARD] = "Nintendo Wii Balance Board", 1082 [WIIMOTE_EXT_PRO_CONTROLLER] = "Nintendo Wii U Pro Controller", 1083 [WIIMOTE_EXT_DRUMS] = "Nintendo Wii Drums", 1084 [WIIMOTE_EXT_GUITAR] = "Nintendo Wii Guitar", 1085}; 1086 1087/* 1088 * Handle hotplug events 1089 * If we receive an hotplug event and the device-check failed, we deinitialize 1090 * the extension ports, re-read all extension IDs and set the device into 1091 * the desired state. This involves mapping MP into the main extension 1092 * registers, setting up extension passthrough modes and initializing the 1093 * requested extensions. 1094 */ 1095static void wiimote_init_hotplug(struct wiimote_data *wdata) 1096{ 1097 __u8 exttype, extdata[6], mpdata[6]; 1098 __u32 flags; 1099 bool mp; 1100 1101 hid_dbg(wdata->hdev, "detect extensions..\n"); 1102 1103 wiimote_cmd_acquire_noint(wdata); 1104 1105 spin_lock_irq(&wdata->state.lock); 1106 1107 /* get state snapshot that we will then work on */ 1108 flags = wdata->state.flags; 1109 1110 /* disable event forwarding temporarily */ 1111 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE; 1112 wdata->state.flags &= ~WIIPROTO_FLAG_MP_ACTIVE; 1113 1114 spin_unlock_irq(&wdata->state.lock); 1115 1116 /* init extension and MP (deactivates current extension or MP) */ 1117 wiimote_cmd_init_ext(wdata); 1118 if (flags & WIIPROTO_FLAG_NO_MP) { 1119 mp = false; 1120 } else { 1121 wiimote_cmd_init_mp(wdata); 1122 mp = wiimote_cmd_read_mp(wdata, mpdata); 1123 } 1124 exttype = wiimote_cmd_read_ext(wdata, extdata); 1125 1126 wiimote_cmd_release(wdata); 1127 1128 /* load/unload extension module if it changed */ 1129 if (exttype != wdata->state.exttype) { 1130 /* unload previous extension */ 1131 wiimote_ext_unload(wdata); 1132 1133 if (exttype == WIIMOTE_EXT_UNKNOWN) { 1134 hid_info(wdata->hdev, "cannot detect extension; %6phC\n", 1135 extdata); 1136 } else if (exttype == WIIMOTE_EXT_NONE) { 1137 spin_lock_irq(&wdata->state.lock); 1138 wdata->state.exttype = WIIMOTE_EXT_NONE; 1139 spin_unlock_irq(&wdata->state.lock); 1140 } else { 1141 hid_info(wdata->hdev, "detected extension: %s\n", 1142 wiimote_exttype_names[exttype]); 1143 /* try loading new extension */ 1144 wiimote_ext_load(wdata, exttype); 1145 } 1146 } 1147 1148 /* load/unload MP module if it changed */ 1149 if (mp) { 1150 if (!wdata->state.mp) { 1151 hid_info(wdata->hdev, "detected extension: Nintendo Wii Motion Plus\n"); 1152 wiimote_mp_load(wdata); 1153 } 1154 } else if (wdata->state.mp) { 1155 wiimote_mp_unload(wdata); 1156 } 1157 1158 /* if MP is not used, do not map or activate it */ 1159 if (!(flags & WIIPROTO_FLAG_MP_USED)) 1160 mp = false; 1161 1162 /* map MP into main extension registers if used */ 1163 if (mp) { 1164 wiimote_cmd_acquire_noint(wdata); 1165 wiimote_cmd_map_mp(wdata, exttype); 1166 wiimote_cmd_release(wdata); 1167 1168 /* delete MP hotplug timer */ 1169 del_timer_sync(&wdata->timer); 1170 } else { 1171 /* reschedule MP hotplug timer */ 1172 if (!(flags & WIIPROTO_FLAG_BUILTIN_MP) && 1173 !(flags & WIIPROTO_FLAG_NO_MP)) 1174 mod_timer(&wdata->timer, jiffies + HZ * 4); 1175 } 1176 1177 spin_lock_irq(&wdata->state.lock); 1178 1179 /* enable data forwarding again and set expected hotplug state */ 1180 if (mp) { 1181 wdata->state.flags |= WIIPROTO_FLAG_MP_ACTIVE; 1182 if (wdata->state.exttype == WIIMOTE_EXT_NONE) { 1183 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED; 1184 wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED; 1185 } else { 1186 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED; 1187 wdata->state.flags |= WIIPROTO_FLAG_MP_PLUGGED; 1188 wdata->state.flags |= WIIPROTO_FLAG_EXT_ACTIVE; 1189 } 1190 } else if (wdata->state.exttype != WIIMOTE_EXT_NONE) { 1191 wdata->state.flags |= WIIPROTO_FLAG_EXT_ACTIVE; 1192 } 1193 1194 /* request status report for hotplug state updates */ 1195 wiiproto_req_status(wdata); 1196 1197 spin_unlock_irq(&wdata->state.lock); 1198 1199 hid_dbg(wdata->hdev, "detected extensions: MP: %d EXT: %d\n", 1200 wdata->state.mp, wdata->state.exttype); 1201} 1202 1203static void wiimote_init_worker(struct work_struct *work) 1204{ 1205 struct wiimote_data *wdata = container_of(work, struct wiimote_data, 1206 init_worker); 1207 bool changed = false; 1208 1209 if (wdata->state.devtype == WIIMOTE_DEV_PENDING) { 1210 wiimote_init_detect(wdata); 1211 changed = true; 1212 } 1213 1214 if (changed || !wiimote_init_check(wdata)) 1215 wiimote_init_hotplug(wdata); 1216 1217 if (changed) 1218 kobject_uevent(&wdata->hdev->dev.kobj, KOBJ_CHANGE); 1219} 1220 1221void __wiimote_schedule(struct wiimote_data *wdata) 1222{ 1223 if (!(wdata->state.flags & WIIPROTO_FLAG_EXITING)) 1224 schedule_work(&wdata->init_worker); 1225} 1226 1227static void wiimote_schedule(struct wiimote_data *wdata) 1228{ 1229 unsigned long flags; 1230 1231 spin_lock_irqsave(&wdata->state.lock, flags); 1232 __wiimote_schedule(wdata); 1233 spin_unlock_irqrestore(&wdata->state.lock, flags); 1234} 1235 1236static void wiimote_init_timeout(struct timer_list *t) 1237{ 1238 struct wiimote_data *wdata = from_timer(wdata, t, timer); 1239 1240 wiimote_schedule(wdata); 1241} 1242 1243/* protocol handlers */ 1244 1245static void handler_keys(struct wiimote_data *wdata, const __u8 *payload) 1246{ 1247 const __u8 *iter, *mods; 1248 const struct wiimod_ops *ops; 1249 1250 ops = wiimod_ext_table[wdata->state.exttype]; 1251 if (ops->in_keys) { 1252 ops->in_keys(wdata, payload); 1253 return; 1254 } 1255 1256 mods = wiimote_devtype_mods[wdata->state.devtype]; 1257 for (iter = mods; *iter != WIIMOD_NULL; ++iter) { 1258 ops = wiimod_table[*iter]; 1259 if (ops->in_keys) { 1260 ops->in_keys(wdata, payload); 1261 break; 1262 } 1263 } 1264} 1265 1266static void handler_accel(struct wiimote_data *wdata, const __u8 *payload) 1267{ 1268 const __u8 *iter, *mods; 1269 const struct wiimod_ops *ops; 1270 1271 ops = wiimod_ext_table[wdata->state.exttype]; 1272 if (ops->in_accel) { 1273 ops->in_accel(wdata, payload); 1274 return; 1275 } 1276 1277 mods = wiimote_devtype_mods[wdata->state.devtype]; 1278 for (iter = mods; *iter != WIIMOD_NULL; ++iter) { 1279 ops = wiimod_table[*iter]; 1280 if (ops->in_accel) { 1281 ops->in_accel(wdata, payload); 1282 break; 1283 } 1284 } 1285} 1286 1287static bool valid_ext_handler(const struct wiimod_ops *ops, size_t len) 1288{ 1289 if (!ops->in_ext) 1290 return false; 1291 if ((ops->flags & WIIMOD_FLAG_EXT8) && len < 8) 1292 return false; 1293 if ((ops->flags & WIIMOD_FLAG_EXT16) && len < 16) 1294 return false; 1295 1296 return true; 1297} 1298 1299static void handler_ext(struct wiimote_data *wdata, const __u8 *payload, 1300 size_t len) 1301{ 1302 static const __u8 invalid[21] = { 0xff, 0xff, 0xff, 0xff, 1303 0xff, 0xff, 0xff, 0xff, 1304 0xff, 0xff, 0xff, 0xff, 1305 0xff, 0xff, 0xff, 0xff, 1306 0xff, 0xff, 0xff, 0xff, 1307 0xff }; 1308 const __u8 *iter, *mods; 1309 const struct wiimod_ops *ops; 1310 bool is_mp; 1311 1312 if (len > 21) 1313 len = 21; 1314 if (len < 6 || !memcmp(payload, invalid, len)) 1315 return; 1316 1317 /* if MP is active, track MP slot hotplugging */ 1318 if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) { 1319 /* this bit is set for invalid events (eg. during hotplug) */ 1320 if (payload[5] & 0x01) 1321 return; 1322 1323 if (payload[4] & 0x01) { 1324 if (!(wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED)) { 1325 hid_dbg(wdata->hdev, "MP hotplug: 1\n"); 1326 wdata->state.flags |= WIIPROTO_FLAG_MP_PLUGGED; 1327 __wiimote_schedule(wdata); 1328 } 1329 } else { 1330 if (wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED) { 1331 hid_dbg(wdata->hdev, "MP hotplug: 0\n"); 1332 wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED; 1333 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE; 1334 __wiimote_schedule(wdata); 1335 } 1336 } 1337 1338 /* detect MP data that is sent interleaved with EXT data */ 1339 is_mp = payload[5] & 0x02; 1340 } else { 1341 is_mp = false; 1342 } 1343 1344 /* ignore EXT events if no extension is active */ 1345 if (!(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE) && !is_mp) 1346 return; 1347 1348 /* try forwarding to extension handler, first */ 1349 ops = wiimod_ext_table[wdata->state.exttype]; 1350 if (is_mp && ops->in_mp) { 1351 ops->in_mp(wdata, payload); 1352 return; 1353 } else if (!is_mp && valid_ext_handler(ops, len)) { 1354 ops->in_ext(wdata, payload); 1355 return; 1356 } 1357 1358 /* try forwarding to MP handler */ 1359 ops = &wiimod_mp; 1360 if (is_mp && ops->in_mp) { 1361 ops->in_mp(wdata, payload); 1362 return; 1363 } else if (!is_mp && valid_ext_handler(ops, len)) { 1364 ops->in_ext(wdata, payload); 1365 return; 1366 } 1367 1368 /* try forwarding to loaded modules */ 1369 mods = wiimote_devtype_mods[wdata->state.devtype]; 1370 for (iter = mods; *iter != WIIMOD_NULL; ++iter) { 1371 ops = wiimod_table[*iter]; 1372 if (is_mp && ops->in_mp) { 1373 ops->in_mp(wdata, payload); 1374 return; 1375 } else if (!is_mp && valid_ext_handler(ops, len)) { 1376 ops->in_ext(wdata, payload); 1377 return; 1378 } 1379 } 1380} 1381 1382#define ir_to_input0(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 0) 1383#define ir_to_input1(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 1) 1384#define ir_to_input2(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 2) 1385#define ir_to_input3(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 3) 1386 1387static void handler_ir(struct wiimote_data *wdata, const __u8 *payload, 1388 bool packed, unsigned int id) 1389{ 1390 const __u8 *iter, *mods; 1391 const struct wiimod_ops *ops; 1392 1393 ops = wiimod_ext_table[wdata->state.exttype]; 1394 if (ops->in_ir) { 1395 ops->in_ir(wdata, payload, packed, id); 1396 return; 1397 } 1398 1399 mods = wiimote_devtype_mods[wdata->state.devtype]; 1400 for (iter = mods; *iter != WIIMOD_NULL; ++iter) { 1401 ops = wiimod_table[*iter]; 1402 if (ops->in_ir) { 1403 ops->in_ir(wdata, payload, packed, id); 1404 break; 1405 } 1406 } 1407} 1408 1409/* reduced status report with "BB BB" key data only */ 1410static void handler_status_K(struct wiimote_data *wdata, 1411 const __u8 *payload) 1412{ 1413 handler_keys(wdata, payload); 1414 1415 /* on status reports the drm is reset so we need to resend the drm */ 1416 wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); 1417} 1418 1419/* extended status report with "BB BB LF 00 00 VV" data */ 1420static void handler_status(struct wiimote_data *wdata, const __u8 *payload) 1421{ 1422 handler_status_K(wdata, payload); 1423 1424 /* update extension status */ 1425 if (payload[2] & 0x02) { 1426 if (!(wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED)) { 1427 hid_dbg(wdata->hdev, "EXT hotplug: 1\n"); 1428 wdata->state.flags |= WIIPROTO_FLAG_EXT_PLUGGED; 1429 __wiimote_schedule(wdata); 1430 } 1431 } else { 1432 if (wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED) { 1433 hid_dbg(wdata->hdev, "EXT hotplug: 0\n"); 1434 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED; 1435 wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED; 1436 wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE; 1437 wdata->state.flags &= ~WIIPROTO_FLAG_MP_ACTIVE; 1438 __wiimote_schedule(wdata); 1439 } 1440 } 1441 1442 wdata->state.cmd_battery = payload[5]; 1443 if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0)) 1444 wiimote_cmd_complete(wdata); 1445} 1446 1447/* reduced generic report with "BB BB" key data only */ 1448static void handler_generic_K(struct wiimote_data *wdata, const __u8 *payload) 1449{ 1450 handler_keys(wdata, payload); 1451} 1452 1453static void handler_data(struct wiimote_data *wdata, const __u8 *payload) 1454{ 1455 __u16 offset = payload[3] << 8 | payload[4]; 1456 __u8 size = (payload[2] >> 4) + 1; 1457 __u8 err = payload[2] & 0x0f; 1458 1459 handler_keys(wdata, payload); 1460 1461 if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_RMEM, offset)) { 1462 if (err) 1463 size = 0; 1464 else if (size > wdata->state.cmd_read_size) 1465 size = wdata->state.cmd_read_size; 1466 1467 wdata->state.cmd_read_size = size; 1468 if (wdata->state.cmd_read_buf) 1469 memcpy(wdata->state.cmd_read_buf, &payload[5], size); 1470 wiimote_cmd_complete(wdata); 1471 } 1472} 1473 1474static void handler_return(struct wiimote_data *wdata, const __u8 *payload) 1475{ 1476 __u8 err = payload[3]; 1477 __u8 cmd = payload[2]; 1478 1479 handler_keys(wdata, payload); 1480 1481 if (wiimote_cmd_pending(wdata, cmd, 0)) { 1482 wdata->state.cmd_err = err; 1483 wiimote_cmd_complete(wdata); 1484 } else if (err) { 1485 hid_warn(wdata->hdev, "Remote error %hhu on req %hhu\n", err, 1486 cmd); 1487 } 1488} 1489 1490static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload) 1491{ 1492 handler_keys(wdata, payload); 1493 handler_accel(wdata, payload); 1494} 1495 1496static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload) 1497{ 1498 handler_keys(wdata, payload); 1499 handler_ext(wdata, &payload[2], 8); 1500} 1501 1502static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload) 1503{ 1504 handler_keys(wdata, payload); 1505 handler_accel(wdata, payload); 1506 ir_to_input0(wdata, &payload[5], false); 1507 ir_to_input1(wdata, &payload[8], false); 1508 ir_to_input2(wdata, &payload[11], false); 1509 ir_to_input3(wdata, &payload[14], false); 1510} 1511 1512static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload) 1513{ 1514 handler_keys(wdata, payload); 1515 handler_ext(wdata, &payload[2], 19); 1516} 1517 1518static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload) 1519{ 1520 handler_keys(wdata, payload); 1521 ir_to_input0(wdata, &payload[2], false); 1522 ir_to_input1(wdata, &payload[4], true); 1523 ir_to_input2(wdata, &payload[7], false); 1524 ir_to_input3(wdata, &payload[9], true); 1525 handler_ext(wdata, &payload[12], 9); 1526} 1527 1528static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload) 1529{ 1530 handler_keys(wdata, payload); 1531 handler_accel(wdata, payload); 1532 handler_ext(wdata, &payload[5], 16); 1533} 1534 1535static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload) 1536{ 1537 handler_keys(wdata, payload); 1538 handler_accel(wdata, payload); 1539 ir_to_input0(wdata, &payload[5], false); 1540 ir_to_input1(wdata, &payload[7], true); 1541 ir_to_input2(wdata, &payload[10], false); 1542 ir_to_input3(wdata, &payload[12], true); 1543 handler_ext(wdata, &payload[15], 6); 1544} 1545 1546static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload) 1547{ 1548 handler_ext(wdata, payload, 21); 1549} 1550 1551static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload) 1552{ 1553 handler_keys(wdata, payload); 1554 1555 wdata->state.accel_split[0] = payload[2]; 1556 wdata->state.accel_split[1] = (payload[0] >> 1) & (0x10 | 0x20); 1557 wdata->state.accel_split[1] |= (payload[1] << 1) & (0x40 | 0x80); 1558 1559 ir_to_input0(wdata, &payload[3], false); 1560 ir_to_input1(wdata, &payload[12], false); 1561} 1562 1563static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload) 1564{ 1565 __u8 buf[5]; 1566 1567 handler_keys(wdata, payload); 1568 1569 wdata->state.accel_split[1] |= (payload[0] >> 5) & (0x01 | 0x02); 1570 wdata->state.accel_split[1] |= (payload[1] >> 3) & (0x04 | 0x08); 1571 1572 buf[0] = 0; 1573 buf[1] = 0; 1574 buf[2] = wdata->state.accel_split[0]; 1575 buf[3] = payload[2]; 1576 buf[4] = wdata->state.accel_split[1]; 1577 handler_accel(wdata, buf); 1578 1579 ir_to_input2(wdata, &payload[3], false); 1580 ir_to_input3(wdata, &payload[12], false); 1581} 1582 1583struct wiiproto_handler { 1584 __u8 id; 1585 size_t size; 1586 void (*func)(struct wiimote_data *wdata, const __u8 *payload); 1587}; 1588 1589static const struct wiiproto_handler handlers[] = { 1590 { .id = WIIPROTO_REQ_STATUS, .size = 6, .func = handler_status }, 1591 { .id = WIIPROTO_REQ_STATUS, .size = 2, .func = handler_status_K }, 1592 { .id = WIIPROTO_REQ_DATA, .size = 21, .func = handler_data }, 1593 { .id = WIIPROTO_REQ_DATA, .size = 2, .func = handler_generic_K }, 1594 { .id = WIIPROTO_REQ_RETURN, .size = 4, .func = handler_return }, 1595 { .id = WIIPROTO_REQ_RETURN, .size = 2, .func = handler_generic_K }, 1596 { .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys }, 1597 { .id = WIIPROTO_REQ_DRM_KA, .size = 5, .func = handler_drm_KA }, 1598 { .id = WIIPROTO_REQ_DRM_KA, .size = 2, .func = handler_generic_K }, 1599 { .id = WIIPROTO_REQ_DRM_KE, .size = 10, .func = handler_drm_KE }, 1600 { .id = WIIPROTO_REQ_DRM_KE, .size = 2, .func = handler_generic_K }, 1601 { .id = WIIPROTO_REQ_DRM_KAI, .size = 17, .func = handler_drm_KAI }, 1602 { .id = WIIPROTO_REQ_DRM_KAI, .size = 2, .func = handler_generic_K }, 1603 { .id = WIIPROTO_REQ_DRM_KEE, .size = 21, .func = handler_drm_KEE }, 1604 { .id = WIIPROTO_REQ_DRM_KEE, .size = 2, .func = handler_generic_K }, 1605 { .id = WIIPROTO_REQ_DRM_KAE, .size = 21, .func = handler_drm_KAE }, 1606 { .id = WIIPROTO_REQ_DRM_KAE, .size = 2, .func = handler_generic_K }, 1607 { .id = WIIPROTO_REQ_DRM_KIE, .size = 21, .func = handler_drm_KIE }, 1608 { .id = WIIPROTO_REQ_DRM_KIE, .size = 2, .func = handler_generic_K }, 1609 { .id = WIIPROTO_REQ_DRM_KAIE, .size = 21, .func = handler_drm_KAIE }, 1610 { .id = WIIPROTO_REQ_DRM_KAIE, .size = 2, .func = handler_generic_K }, 1611 { .id = WIIPROTO_REQ_DRM_E, .size = 21, .func = handler_drm_E }, 1612 { .id = WIIPROTO_REQ_DRM_SKAI1, .size = 21, .func = handler_drm_SKAI1 }, 1613 { .id = WIIPROTO_REQ_DRM_SKAI2, .size = 21, .func = handler_drm_SKAI2 }, 1614 { .id = 0 } 1615}; 1616 1617static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report, 1618 u8 *raw_data, int size) 1619{ 1620 struct wiimote_data *wdata = hid_get_drvdata(hdev); 1621 const struct wiiproto_handler *h; 1622 int i; 1623 unsigned long flags; 1624 1625 if (size < 1) 1626 return -EINVAL; 1627 1628 for (i = 0; handlers[i].id; ++i) { 1629 h = &handlers[i]; 1630 if (h->id == raw_data[0] && h->size < size) { 1631 spin_lock_irqsave(&wdata->state.lock, flags); 1632 h->func(wdata, &raw_data[1]); 1633 spin_unlock_irqrestore(&wdata->state.lock, flags); 1634 break; 1635 } 1636 } 1637 1638 if (!handlers[i].id) 1639 hid_warn(hdev, "Unhandled report %hhu size %d\n", raw_data[0], 1640 size); 1641 1642 return 0; 1643} 1644 1645static ssize_t wiimote_ext_show(struct device *dev, 1646 struct device_attribute *attr, 1647 char *buf) 1648{ 1649 struct wiimote_data *wdata = dev_to_wii(dev); 1650 __u8 type; 1651 unsigned long flags; 1652 1653 spin_lock_irqsave(&wdata->state.lock, flags); 1654 type = wdata->state.exttype; 1655 spin_unlock_irqrestore(&wdata->state.lock, flags); 1656 1657 switch (type) { 1658 case WIIMOTE_EXT_NONE: 1659 return sprintf(buf, "none\n"); 1660 case WIIMOTE_EXT_NUNCHUK: 1661 return sprintf(buf, "nunchuk\n"); 1662 case WIIMOTE_EXT_CLASSIC_CONTROLLER: 1663 return sprintf(buf, "classic\n"); 1664 case WIIMOTE_EXT_BALANCE_BOARD: 1665 return sprintf(buf, "balanceboard\n"); 1666 case WIIMOTE_EXT_PRO_CONTROLLER: 1667 return sprintf(buf, "procontroller\n"); 1668 case WIIMOTE_EXT_DRUMS: 1669 return sprintf(buf, "drums\n"); 1670 case WIIMOTE_EXT_GUITAR: 1671 return sprintf(buf, "guitar\n"); 1672 case WIIMOTE_EXT_UNKNOWN: 1673 default: 1674 return sprintf(buf, "unknown\n"); 1675 } 1676} 1677 1678static ssize_t wiimote_ext_store(struct device *dev, 1679 struct device_attribute *attr, 1680 const char *buf, size_t count) 1681{ 1682 struct wiimote_data *wdata = dev_to_wii(dev); 1683 1684 if (!strcmp(buf, "scan")) { 1685 wiimote_schedule(wdata); 1686 } else { 1687 return -EINVAL; 1688 } 1689 1690 return strnlen(buf, PAGE_SIZE); 1691} 1692 1693static DEVICE_ATTR(extension, S_IRUGO | S_IWUSR | S_IWGRP, wiimote_ext_show, 1694 wiimote_ext_store); 1695 1696static ssize_t wiimote_dev_show(struct device *dev, 1697 struct device_attribute *attr, 1698 char *buf) 1699{ 1700 struct wiimote_data *wdata = dev_to_wii(dev); 1701 __u8 type; 1702 unsigned long flags; 1703 1704 spin_lock_irqsave(&wdata->state.lock, flags); 1705 type = wdata->state.devtype; 1706 spin_unlock_irqrestore(&wdata->state.lock, flags); 1707 1708 switch (type) { 1709 case WIIMOTE_DEV_GENERIC: 1710 return sprintf(buf, "generic\n"); 1711 case WIIMOTE_DEV_GEN10: 1712 return sprintf(buf, "gen10\n"); 1713 case WIIMOTE_DEV_GEN20: 1714 return sprintf(buf, "gen20\n"); 1715 case WIIMOTE_DEV_BALANCE_BOARD: 1716 return sprintf(buf, "balanceboard\n"); 1717 case WIIMOTE_DEV_PRO_CONTROLLER: 1718 return sprintf(buf, "procontroller\n"); 1719 case WIIMOTE_DEV_PENDING: 1720 return sprintf(buf, "pending\n"); 1721 case WIIMOTE_DEV_UNKNOWN: 1722 default: 1723 return sprintf(buf, "unknown\n"); 1724 } 1725} 1726 1727static DEVICE_ATTR(devtype, S_IRUGO, wiimote_dev_show, NULL); 1728 1729static struct wiimote_data *wiimote_create(struct hid_device *hdev) 1730{ 1731 struct wiimote_data *wdata; 1732 1733 wdata = kzalloc(sizeof(*wdata), GFP_KERNEL); 1734 if (!wdata) 1735 return NULL; 1736 1737 wdata->hdev = hdev; 1738 hid_set_drvdata(hdev, wdata); 1739 1740 spin_lock_init(&wdata->queue.lock); 1741 INIT_WORK(&wdata->queue.worker, wiimote_queue_worker); 1742 1743 spin_lock_init(&wdata->state.lock); 1744 init_completion(&wdata->state.ready); 1745 mutex_init(&wdata->state.sync); 1746 wdata->state.drm = WIIPROTO_REQ_DRM_K; 1747 wdata->state.cmd_battery = 0xff; 1748 1749 INIT_WORK(&wdata->init_worker, wiimote_init_worker); 1750 timer_setup(&wdata->timer, wiimote_init_timeout, 0); 1751 1752 return wdata; 1753} 1754 1755static void wiimote_destroy(struct wiimote_data *wdata) 1756{ 1757 unsigned long flags; 1758 1759 wiidebug_deinit(wdata); 1760 1761 /* prevent init_worker from being scheduled again */ 1762 spin_lock_irqsave(&wdata->state.lock, flags); 1763 wdata->state.flags |= WIIPROTO_FLAG_EXITING; 1764 spin_unlock_irqrestore(&wdata->state.lock, flags); 1765 1766 cancel_work_sync(&wdata->init_worker); 1767 del_timer_sync(&wdata->timer); 1768 1769 device_remove_file(&wdata->hdev->dev, &dev_attr_devtype); 1770 device_remove_file(&wdata->hdev->dev, &dev_attr_extension); 1771 1772 wiimote_mp_unload(wdata); 1773 wiimote_ext_unload(wdata); 1774 wiimote_modules_unload(wdata); 1775 cancel_work_sync(&wdata->queue.worker); 1776 hid_hw_close(wdata->hdev); 1777 hid_hw_stop(wdata->hdev); 1778 1779 kfree(wdata); 1780} 1781 1782static int wiimote_hid_probe(struct hid_device *hdev, 1783 const struct hid_device_id *id) 1784{ 1785 struct wiimote_data *wdata; 1786 int ret; 1787 1788 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; 1789 1790 wdata = wiimote_create(hdev); 1791 if (!wdata) { 1792 hid_err(hdev, "Can't alloc device\n"); 1793 return -ENOMEM; 1794 } 1795 1796 ret = hid_parse(hdev); 1797 if (ret) { 1798 hid_err(hdev, "HID parse failed\n"); 1799 goto err; 1800 } 1801 1802 ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW); 1803 if (ret) { 1804 hid_err(hdev, "HW start failed\n"); 1805 goto err; 1806 } 1807 1808 ret = hid_hw_open(hdev); 1809 if (ret) { 1810 hid_err(hdev, "cannot start hardware I/O\n"); 1811 goto err_stop; 1812 } 1813 1814 ret = device_create_file(&hdev->dev, &dev_attr_extension); 1815 if (ret) { 1816 hid_err(hdev, "cannot create sysfs attribute\n"); 1817 goto err_close; 1818 } 1819 1820 ret = device_create_file(&hdev->dev, &dev_attr_devtype); 1821 if (ret) { 1822 hid_err(hdev, "cannot create sysfs attribute\n"); 1823 goto err_ext; 1824 } 1825 1826 ret = wiidebug_init(wdata); 1827 if (ret) 1828 goto err_free; 1829 1830 hid_info(hdev, "New device registered\n"); 1831 1832 /* schedule device detection */ 1833 wiimote_schedule(wdata); 1834 1835 return 0; 1836 1837err_free: 1838 wiimote_destroy(wdata); 1839 return ret; 1840 1841err_ext: 1842 device_remove_file(&wdata->hdev->dev, &dev_attr_extension); 1843err_close: 1844 hid_hw_close(hdev); 1845err_stop: 1846 hid_hw_stop(hdev); 1847err: 1848 input_free_device(wdata->ir); 1849 input_free_device(wdata->accel); 1850 kfree(wdata); 1851 return ret; 1852} 1853 1854static void wiimote_hid_remove(struct hid_device *hdev) 1855{ 1856 struct wiimote_data *wdata = hid_get_drvdata(hdev); 1857 1858 hid_info(hdev, "Device removed\n"); 1859 wiimote_destroy(wdata); 1860} 1861 1862static const struct hid_device_id wiimote_hid_devices[] = { 1863 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, 1864 USB_DEVICE_ID_NINTENDO_WIIMOTE) }, 1865 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, 1866 USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, 1867 { } 1868}; 1869 1870bool wiimote_dpad_as_analog = false; 1871module_param_named(dpad_as_analog, wiimote_dpad_as_analog, bool, 0644); 1872MODULE_PARM_DESC(dpad_as_analog, "Use D-Pad as main analog input"); 1873 1874MODULE_DEVICE_TABLE(hid, wiimote_hid_devices); 1875 1876static struct hid_driver wiimote_hid_driver = { 1877 .name = "wiimote", 1878 .id_table = wiimote_hid_devices, 1879 .probe = wiimote_hid_probe, 1880 .remove = wiimote_hid_remove, 1881 .raw_event = wiimote_hid_event, 1882}; 1883module_hid_driver(wiimote_hid_driver); 1884 1885MODULE_LICENSE("GPL"); 1886MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>"); 1887MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals"); 1888