1 /* $NetBSD: uhid.c,v 1.46 2001/11/13 06:24:55 lukem Exp $ */ 2 3 /* Also already merged from NetBSD: 4 * $NetBSD: uhid.c,v 1.54 2002/09/23 05:51:21 simonb Exp $ 5 */ 6 7 #include <sys/cdefs.h> 8 __FBSDID("$FreeBSD$"); 9 10 /*- 11 * SPDX-License-Identifier: BSD-2-Clause-NetBSD 12 * 13 * Copyright (c) 1998 The NetBSD Foundation, Inc. 14 * All rights reserved. 15 * 16 * This code is derived from software contributed to The NetBSD Foundation 17 * by Lennart Augustsson (lennart@augustsson.net) at 18 * Carlstedt Research & Technology. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42 /* 43 * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf 44 */ 45 46 #include <sys/stdint.h> 47 #include <sys/stddef.h> 48 #include <sys/param.h> 49 #include <sys/queue.h> 50 #include <sys/types.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/bus.h> 54 #include <sys/module.h> 55 #include <sys/lock.h> 56 #include <sys/mutex.h> 57 #include <sys/condvar.h> 58 #include <sys/sysctl.h> 59 #include <sys/sx.h> 60 #include <sys/unistd.h> 61 #include <sys/callout.h> 62 #include <sys/malloc.h> 63 #include <sys/priv.h> 64 #include <sys/conf.h> 65 #include <sys/fcntl.h> 66 67 #include "usbdevs.h" 68 #include <dev/usb/usb.h> 69 #include <dev/usb/usbdi.h> 70 #include <dev/usb/usbdi_util.h> 71 #include <dev/usb/usbhid.h> 72 #include <dev/usb/usb_ioctl.h> 73 74 #define USB_DEBUG_VAR uhid_debug 75 #include <dev/usb/usb_debug.h> 76 77 #include <dev/usb/input/usb_rdesc.h> 78 #include <dev/usb/quirk/usb_quirk.h> 79 80 #ifdef USB_DEBUG 81 static int uhid_debug = 0; 82 83 static SYSCTL_NODE(_hw_usb, OID_AUTO, uhid, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 84 "USB uhid"); 85 SYSCTL_INT(_hw_usb_uhid, OID_AUTO, debug, CTLFLAG_RWTUN, 86 &uhid_debug, 0, "Debug level"); 87 #endif 88 89 #define UHID_BSIZE 1024 /* bytes, buffer size */ 90 #define UHID_FRAME_NUM 50 /* bytes, frame number */ 91 92 enum { 93 UHID_INTR_DT_WR, 94 UHID_INTR_DT_RD, 95 UHID_CTRL_DT_WR, 96 UHID_CTRL_DT_RD, 97 UHID_N_TRANSFER, 98 }; 99 100 struct uhid_softc { 101 struct usb_fifo_sc sc_fifo; 102 struct mtx sc_mtx; 103 104 struct usb_xfer *sc_xfer[UHID_N_TRANSFER]; 105 struct usb_device *sc_udev; 106 void *sc_repdesc_ptr; 107 108 uint32_t sc_isize; 109 uint32_t sc_osize; 110 uint32_t sc_fsize; 111 112 uint16_t sc_repdesc_size; 113 114 uint8_t sc_iface_no; 115 uint8_t sc_iface_index; 116 uint8_t sc_iid; 117 uint8_t sc_oid; 118 uint8_t sc_fid; 119 uint8_t sc_flags; 120 #define UHID_FLAG_IMMED 0x01 /* set if read should be immediate */ 121 #define UHID_FLAG_STATIC_DESC 0x04 /* set if report descriptors are 122 * static */ 123 }; 124 125 static const uint8_t uhid_xb360gp_report_descr[] = {UHID_XB360GP_REPORT_DESCR()}; 126 static const uint8_t uhid_graphire_report_descr[] = {UHID_GRAPHIRE_REPORT_DESCR()}; 127 static const uint8_t uhid_graphire3_4x5_report_descr[] = {UHID_GRAPHIRE3_4X5_REPORT_DESCR()}; 128 129 /* prototypes */ 130 131 static device_probe_t uhid_probe; 132 static device_attach_t uhid_attach; 133 static device_detach_t uhid_detach; 134 135 static usb_callback_t uhid_intr_write_callback; 136 static usb_callback_t uhid_intr_read_callback; 137 static usb_callback_t uhid_write_callback; 138 static usb_callback_t uhid_read_callback; 139 140 static usb_fifo_cmd_t uhid_start_read; 141 static usb_fifo_cmd_t uhid_stop_read; 142 static usb_fifo_cmd_t uhid_start_write; 143 static usb_fifo_cmd_t uhid_stop_write; 144 static usb_fifo_open_t uhid_open; 145 static usb_fifo_close_t uhid_close; 146 static usb_fifo_ioctl_t uhid_ioctl; 147 148 static struct usb_fifo_methods uhid_fifo_methods = { 149 .f_open = &uhid_open, 150 .f_close = &uhid_close, 151 .f_ioctl = &uhid_ioctl, 152 .f_start_read = &uhid_start_read, 153 .f_stop_read = &uhid_stop_read, 154 .f_start_write = &uhid_start_write, 155 .f_stop_write = &uhid_stop_write, 156 .basename[0] = "uhid", 157 }; 158 159 static void 160 uhid_intr_write_callback(struct usb_xfer *xfer, usb_error_t error) 161 { 162 struct uhid_softc *sc = usbd_xfer_softc(xfer); 163 struct usb_page_cache *pc; 164 int actlen; 165 166 switch (USB_GET_STATE(xfer)) { 167 case USB_ST_TRANSFERRED: 168 case USB_ST_SETUP: 169 tr_setup: 170 pc = usbd_xfer_get_frame(xfer, 0); 171 if (usb_fifo_get_data(sc->sc_fifo.fp[USB_FIFO_TX], pc, 172 0, usbd_xfer_max_len(xfer), &actlen, 0)) { 173 usbd_xfer_set_frame_len(xfer, 0, actlen); 174 usbd_transfer_submit(xfer); 175 } 176 return; 177 178 default: /* Error */ 179 if (error != USB_ERR_CANCELLED) { 180 /* try to clear stall first */ 181 usbd_xfer_set_stall(xfer); 182 goto tr_setup; 183 } 184 return; 185 } 186 } 187 188 static void 189 uhid_intr_read_callback(struct usb_xfer *xfer, usb_error_t error) 190 { 191 struct uhid_softc *sc = usbd_xfer_softc(xfer); 192 struct usb_page_cache *pc; 193 int actlen; 194 195 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 196 197 switch (USB_GET_STATE(xfer)) { 198 case USB_ST_TRANSFERRED: 199 DPRINTF("transferred!\n"); 200 201 pc = usbd_xfer_get_frame(xfer, 0); 202 203 /* 204 * If the ID byte is non zero we allow descriptors 205 * having multiple sizes: 206 */ 207 if ((actlen >= (int)sc->sc_isize) || 208 ((actlen > 0) && (sc->sc_iid != 0))) { 209 /* limit report length to the maximum */ 210 if (actlen > (int)sc->sc_isize) 211 actlen = sc->sc_isize; 212 usb_fifo_put_data(sc->sc_fifo.fp[USB_FIFO_RX], pc, 213 0, actlen, 1); 214 } else { 215 /* ignore it */ 216 DPRINTF("ignored transfer, %d bytes\n", actlen); 217 } 218 219 case USB_ST_SETUP: 220 re_submit: 221 if (usb_fifo_put_bytes_max( 222 sc->sc_fifo.fp[USB_FIFO_RX]) != 0) { 223 usbd_xfer_set_frame_len(xfer, 0, sc->sc_isize); 224 usbd_transfer_submit(xfer); 225 } 226 return; 227 228 default: /* Error */ 229 if (error != USB_ERR_CANCELLED) { 230 /* try to clear stall first */ 231 usbd_xfer_set_stall(xfer); 232 goto re_submit; 233 } 234 return; 235 } 236 } 237 238 static void 239 uhid_fill_set_report(struct usb_device_request *req, uint8_t iface_no, 240 uint8_t type, uint8_t id, uint16_t size) 241 { 242 req->bmRequestType = UT_WRITE_CLASS_INTERFACE; 243 req->bRequest = UR_SET_REPORT; 244 USETW2(req->wValue, type, id); 245 req->wIndex[0] = iface_no; 246 req->wIndex[1] = 0; 247 USETW(req->wLength, size); 248 } 249 250 static void 251 uhid_fill_get_report(struct usb_device_request *req, uint8_t iface_no, 252 uint8_t type, uint8_t id, uint16_t size) 253 { 254 req->bmRequestType = UT_READ_CLASS_INTERFACE; 255 req->bRequest = UR_GET_REPORT; 256 USETW2(req->wValue, type, id); 257 req->wIndex[0] = iface_no; 258 req->wIndex[1] = 0; 259 USETW(req->wLength, size); 260 } 261 262 static void 263 uhid_write_callback(struct usb_xfer *xfer, usb_error_t error) 264 { 265 struct uhid_softc *sc = usbd_xfer_softc(xfer); 266 struct usb_device_request req; 267 struct usb_page_cache *pc; 268 uint32_t size = sc->sc_osize; 269 uint32_t actlen; 270 uint8_t id; 271 272 switch (USB_GET_STATE(xfer)) { 273 case USB_ST_TRANSFERRED: 274 case USB_ST_SETUP: 275 /* try to extract the ID byte */ 276 if (sc->sc_oid) { 277 pc = usbd_xfer_get_frame(xfer, 0); 278 if (usb_fifo_get_data(sc->sc_fifo.fp[USB_FIFO_TX], pc, 279 0, 1, &actlen, 0)) { 280 if (actlen != 1) { 281 goto tr_error; 282 } 283 usbd_copy_out(pc, 0, &id, 1); 284 285 } else { 286 return; 287 } 288 if (size) { 289 size--; 290 } 291 } else { 292 id = 0; 293 } 294 295 pc = usbd_xfer_get_frame(xfer, 1); 296 if (usb_fifo_get_data(sc->sc_fifo.fp[USB_FIFO_TX], pc, 297 0, UHID_BSIZE, &actlen, 1)) { 298 if (actlen != size) { 299 goto tr_error; 300 } 301 uhid_fill_set_report 302 (&req, sc->sc_iface_no, 303 UHID_OUTPUT_REPORT, id, size); 304 305 pc = usbd_xfer_get_frame(xfer, 0); 306 usbd_copy_in(pc, 0, &req, sizeof(req)); 307 308 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 309 usbd_xfer_set_frame_len(xfer, 1, size); 310 usbd_xfer_set_frames(xfer, size ? 2 : 1); 311 usbd_transfer_submit(xfer); 312 } 313 return; 314 315 default: 316 tr_error: 317 /* bomb out */ 318 usb_fifo_get_data_error(sc->sc_fifo.fp[USB_FIFO_TX]); 319 return; 320 } 321 } 322 323 static void 324 uhid_read_callback(struct usb_xfer *xfer, usb_error_t error) 325 { 326 struct uhid_softc *sc = usbd_xfer_softc(xfer); 327 struct usb_device_request req; 328 struct usb_page_cache *pc; 329 330 pc = usbd_xfer_get_frame(xfer, 0); 331 332 switch (USB_GET_STATE(xfer)) { 333 case USB_ST_TRANSFERRED: 334 usb_fifo_put_data(sc->sc_fifo.fp[USB_FIFO_RX], pc, sizeof(req), 335 sc->sc_isize, 1); 336 return; 337 338 case USB_ST_SETUP: 339 340 if (usb_fifo_put_bytes_max(sc->sc_fifo.fp[USB_FIFO_RX]) > 0) { 341 342 uhid_fill_get_report 343 (&req, sc->sc_iface_no, UHID_INPUT_REPORT, 344 sc->sc_iid, sc->sc_isize); 345 346 usbd_copy_in(pc, 0, &req, sizeof(req)); 347 348 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 349 usbd_xfer_set_frame_len(xfer, 1, sc->sc_isize); 350 usbd_xfer_set_frames(xfer, sc->sc_isize ? 2 : 1); 351 usbd_transfer_submit(xfer); 352 } 353 return; 354 355 default: /* Error */ 356 /* bomb out */ 357 usb_fifo_put_data_error(sc->sc_fifo.fp[USB_FIFO_RX]); 358 return; 359 } 360 } 361 362 static const struct usb_config uhid_config[UHID_N_TRANSFER] = { 363 364 [UHID_INTR_DT_WR] = { 365 .type = UE_INTERRUPT, 366 .endpoint = UE_ADDR_ANY, 367 .direction = UE_DIR_OUT, 368 .flags = {.pipe_bof = 1,.no_pipe_ok = 1, }, 369 .bufsize = UHID_BSIZE, 370 .callback = &uhid_intr_write_callback, 371 }, 372 373 [UHID_INTR_DT_RD] = { 374 .type = UE_INTERRUPT, 375 .endpoint = UE_ADDR_ANY, 376 .direction = UE_DIR_IN, 377 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 378 .bufsize = UHID_BSIZE, 379 .callback = &uhid_intr_read_callback, 380 }, 381 382 [UHID_CTRL_DT_WR] = { 383 .type = UE_CONTROL, 384 .endpoint = 0x00, /* Control pipe */ 385 .direction = UE_DIR_ANY, 386 .bufsize = sizeof(struct usb_device_request) + UHID_BSIZE, 387 .callback = &uhid_write_callback, 388 .timeout = 1000, /* 1 second */ 389 }, 390 391 [UHID_CTRL_DT_RD] = { 392 .type = UE_CONTROL, 393 .endpoint = 0x00, /* Control pipe */ 394 .direction = UE_DIR_ANY, 395 .bufsize = sizeof(struct usb_device_request) + UHID_BSIZE, 396 .callback = &uhid_read_callback, 397 .timeout = 1000, /* 1 second */ 398 }, 399 }; 400 401 static void 402 uhid_start_read(struct usb_fifo *fifo) 403 { 404 struct uhid_softc *sc = usb_fifo_softc(fifo); 405 406 if (sc->sc_flags & UHID_FLAG_IMMED) { 407 usbd_transfer_start(sc->sc_xfer[UHID_CTRL_DT_RD]); 408 } else { 409 usbd_transfer_start(sc->sc_xfer[UHID_INTR_DT_RD]); 410 } 411 } 412 413 static void 414 uhid_stop_read(struct usb_fifo *fifo) 415 { 416 struct uhid_softc *sc = usb_fifo_softc(fifo); 417 418 usbd_transfer_stop(sc->sc_xfer[UHID_CTRL_DT_RD]); 419 usbd_transfer_stop(sc->sc_xfer[UHID_INTR_DT_RD]); 420 } 421 422 static void 423 uhid_start_write(struct usb_fifo *fifo) 424 { 425 struct uhid_softc *sc = usb_fifo_softc(fifo); 426 427 if ((sc->sc_flags & UHID_FLAG_IMMED) || 428 sc->sc_xfer[UHID_INTR_DT_WR] == NULL) { 429 usbd_transfer_start(sc->sc_xfer[UHID_CTRL_DT_WR]); 430 } else { 431 usbd_transfer_start(sc->sc_xfer[UHID_INTR_DT_WR]); 432 } 433 } 434 435 static void 436 uhid_stop_write(struct usb_fifo *fifo) 437 { 438 struct uhid_softc *sc = usb_fifo_softc(fifo); 439 440 usbd_transfer_stop(sc->sc_xfer[UHID_CTRL_DT_WR]); 441 usbd_transfer_stop(sc->sc_xfer[UHID_INTR_DT_WR]); 442 } 443 444 static int 445 uhid_get_report(struct uhid_softc *sc, uint8_t type, 446 uint8_t id, void *kern_data, void *user_data, 447 uint16_t len) 448 { 449 int err; 450 uint8_t free_data = 0; 451 452 if (kern_data == NULL) { 453 kern_data = malloc(len, M_USBDEV, M_WAITOK); 454 free_data = 1; 455 } 456 err = usbd_req_get_report(sc->sc_udev, NULL, kern_data, 457 len, sc->sc_iface_index, type, id); 458 if (err) { 459 err = ENXIO; 460 goto done; 461 } 462 if (user_data) { 463 /* dummy buffer */ 464 err = copyout(kern_data, user_data, len); 465 if (err) { 466 goto done; 467 } 468 } 469 done: 470 if (free_data) { 471 free(kern_data, M_USBDEV); 472 } 473 return (err); 474 } 475 476 static int 477 uhid_set_report(struct uhid_softc *sc, uint8_t type, 478 uint8_t id, void *kern_data, void *user_data, 479 uint16_t len) 480 { 481 int err; 482 uint8_t free_data = 0; 483 484 if (kern_data == NULL) { 485 kern_data = malloc(len, M_USBDEV, M_WAITOK); 486 free_data = 1; 487 err = copyin(user_data, kern_data, len); 488 if (err) { 489 goto done; 490 } 491 } 492 err = usbd_req_set_report(sc->sc_udev, NULL, kern_data, 493 len, sc->sc_iface_index, type, id); 494 if (err) { 495 err = ENXIO; 496 goto done; 497 } 498 done: 499 if (free_data) { 500 free(kern_data, M_USBDEV); 501 } 502 return (err); 503 } 504 505 static int 506 uhid_open(struct usb_fifo *fifo, int fflags) 507 { 508 struct uhid_softc *sc = usb_fifo_softc(fifo); 509 510 /* 511 * The buffers are one byte larger than maximum so that one 512 * can detect too large read/writes and short transfers: 513 */ 514 if (fflags & FREAD) { 515 /* reset flags */ 516 mtx_lock(&sc->sc_mtx); 517 sc->sc_flags &= ~UHID_FLAG_IMMED; 518 mtx_unlock(&sc->sc_mtx); 519 520 if (usb_fifo_alloc_buffer(fifo, 521 sc->sc_isize + 1, UHID_FRAME_NUM)) { 522 return (ENOMEM); 523 } 524 } 525 if (fflags & FWRITE) { 526 if (usb_fifo_alloc_buffer(fifo, 527 sc->sc_osize + 1, UHID_FRAME_NUM)) { 528 return (ENOMEM); 529 } 530 } 531 return (0); 532 } 533 534 static void 535 uhid_close(struct usb_fifo *fifo, int fflags) 536 { 537 if (fflags & (FREAD | FWRITE)) { 538 usb_fifo_free_buffer(fifo); 539 } 540 } 541 542 static int 543 uhid_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr, 544 int fflags) 545 { 546 struct uhid_softc *sc = usb_fifo_softc(fifo); 547 struct usb_gen_descriptor *ugd; 548 uint32_t size; 549 int error = 0; 550 uint8_t id; 551 552 switch (cmd) { 553 case USB_GET_REPORT_DESC: 554 ugd = addr; 555 if (sc->sc_repdesc_size > ugd->ugd_maxlen) { 556 size = ugd->ugd_maxlen; 557 } else { 558 size = sc->sc_repdesc_size; 559 } 560 ugd->ugd_actlen = size; 561 if (ugd->ugd_data == NULL) 562 break; /* descriptor length only */ 563 error = copyout(sc->sc_repdesc_ptr, ugd->ugd_data, size); 564 break; 565 566 case USB_SET_IMMED: 567 if (!(fflags & FREAD)) { 568 error = EPERM; 569 break; 570 } 571 if (*(int *)addr) { 572 573 /* do a test read */ 574 575 error = uhid_get_report(sc, UHID_INPUT_REPORT, 576 sc->sc_iid, NULL, NULL, sc->sc_isize); 577 if (error) { 578 break; 579 } 580 mtx_lock(&sc->sc_mtx); 581 sc->sc_flags |= UHID_FLAG_IMMED; 582 mtx_unlock(&sc->sc_mtx); 583 } else { 584 mtx_lock(&sc->sc_mtx); 585 sc->sc_flags &= ~UHID_FLAG_IMMED; 586 mtx_unlock(&sc->sc_mtx); 587 } 588 break; 589 590 case USB_GET_REPORT: 591 if (!(fflags & FREAD)) { 592 error = EPERM; 593 break; 594 } 595 ugd = addr; 596 switch (ugd->ugd_report_type) { 597 case UHID_INPUT_REPORT: 598 size = sc->sc_isize; 599 id = sc->sc_iid; 600 break; 601 case UHID_OUTPUT_REPORT: 602 size = sc->sc_osize; 603 id = sc->sc_oid; 604 break; 605 case UHID_FEATURE_REPORT: 606 size = sc->sc_fsize; 607 id = sc->sc_fid; 608 break; 609 default: 610 return (EINVAL); 611 } 612 if (id != 0) 613 copyin(ugd->ugd_data, &id, 1); 614 error = uhid_get_report(sc, ugd->ugd_report_type, id, 615 NULL, ugd->ugd_data, imin(ugd->ugd_maxlen, size)); 616 break; 617 618 case USB_SET_REPORT: 619 if (!(fflags & FWRITE)) { 620 error = EPERM; 621 break; 622 } 623 ugd = addr; 624 switch (ugd->ugd_report_type) { 625 case UHID_INPUT_REPORT: 626 size = sc->sc_isize; 627 id = sc->sc_iid; 628 break; 629 case UHID_OUTPUT_REPORT: 630 size = sc->sc_osize; 631 id = sc->sc_oid; 632 break; 633 case UHID_FEATURE_REPORT: 634 size = sc->sc_fsize; 635 id = sc->sc_fid; 636 break; 637 default: 638 return (EINVAL); 639 } 640 if (id != 0) 641 copyin(ugd->ugd_data, &id, 1); 642 error = uhid_set_report(sc, ugd->ugd_report_type, id, 643 NULL, ugd->ugd_data, imin(ugd->ugd_maxlen, size)); 644 break; 645 646 case USB_GET_REPORT_ID: 647 *(int *)addr = 0; /* XXX: we only support reportid 0? */ 648 break; 649 650 default: 651 error = EINVAL; 652 break; 653 } 654 return (error); 655 } 656 657 static const STRUCT_USB_HOST_ID uhid_devs[] = { 658 /* generic HID class */ 659 {USB_IFACE_CLASS(UICLASS_HID),}, 660 /* the Xbox 360 gamepad doesn't use the HID class */ 661 {USB_IFACE_CLASS(UICLASS_VENDOR), 662 USB_IFACE_SUBCLASS(UISUBCLASS_XBOX360_CONTROLLER), 663 USB_IFACE_PROTOCOL(UIPROTO_XBOX360_GAMEPAD),}, 664 }; 665 666 static int 667 uhid_probe(device_t dev) 668 { 669 struct usb_attach_arg *uaa = device_get_ivars(dev); 670 int error; 671 void *buf; 672 uint16_t len; 673 674 DPRINTFN(11, "\n"); 675 676 if (uaa->usb_mode != USB_MODE_HOST) 677 return (ENXIO); 678 679 error = usbd_lookup_id_by_uaa(uhid_devs, sizeof(uhid_devs), uaa); 680 if (error) 681 return (error); 682 683 if (usb_test_quirk(uaa, UQ_HID_IGNORE)) 684 return (ENXIO); 685 686 /* 687 * Don't attach to mouse and keyboard devices, hence then no 688 * "nomatch" event is generated and then ums and ukbd won't 689 * attach properly when loaded. 690 */ 691 if ((uaa->info.bInterfaceClass == UICLASS_HID) && 692 (uaa->info.bInterfaceSubClass == UISUBCLASS_BOOT) && 693 (((uaa->info.bInterfaceProtocol == UIPROTO_BOOT_KEYBOARD) && 694 !usb_test_quirk(uaa, UQ_KBD_IGNORE)) || 695 ((uaa->info.bInterfaceProtocol == UIPROTO_MOUSE) && 696 !usb_test_quirk(uaa, UQ_UMS_IGNORE)))) 697 return (ENXIO); 698 699 /* Check for mandatory multitouch usages to give wmt(4) a chance */ 700 if (!usb_test_quirk(uaa, UQ_WMT_IGNORE)) { 701 error = usbd_req_get_hid_desc(uaa->device, NULL, 702 &buf, &len, M_USBDEV, uaa->info.bIfaceIndex); 703 /* Let HID decscriptor-less devices to be handled at attach */ 704 if (!error) { 705 if (hid_locate(buf, len, 706 HID_USAGE2(HUP_DIGITIZERS, HUD_CONTACT_MAX), 707 hid_feature, 0, NULL, NULL, NULL) && 708 hid_locate(buf, len, 709 HID_USAGE2(HUP_DIGITIZERS, HUD_CONTACTID), 710 hid_input, 0, NULL, NULL, NULL)) { 711 free(buf, M_USBDEV); 712 return (ENXIO); 713 } 714 free(buf, M_USBDEV); 715 } 716 } 717 718 return (BUS_PROBE_GENERIC); 719 } 720 721 static int 722 uhid_attach(device_t dev) 723 { 724 struct usb_attach_arg *uaa = device_get_ivars(dev); 725 struct uhid_softc *sc = device_get_softc(dev); 726 int unit = device_get_unit(dev); 727 int error = 0; 728 729 DPRINTFN(10, "sc=%p\n", sc); 730 731 device_set_usb_desc(dev); 732 733 mtx_init(&sc->sc_mtx, "uhid lock", NULL, MTX_DEF | MTX_RECURSE); 734 735 sc->sc_udev = uaa->device; 736 737 sc->sc_iface_no = uaa->info.bIfaceNum; 738 sc->sc_iface_index = uaa->info.bIfaceIndex; 739 740 error = usbd_transfer_setup(uaa->device, 741 &uaa->info.bIfaceIndex, sc->sc_xfer, uhid_config, 742 UHID_N_TRANSFER, sc, &sc->sc_mtx); 743 744 if (error) { 745 DPRINTF("error=%s\n", usbd_errstr(error)); 746 goto detach; 747 } 748 if (uaa->info.idVendor == USB_VENDOR_WACOM) { 749 750 /* the report descriptor for the Wacom Graphire is broken */ 751 752 if (uaa->info.idProduct == USB_PRODUCT_WACOM_GRAPHIRE) { 753 754 sc->sc_repdesc_size = sizeof(uhid_graphire_report_descr); 755 sc->sc_repdesc_ptr = __DECONST(void *, &uhid_graphire_report_descr); 756 sc->sc_flags |= UHID_FLAG_STATIC_DESC; 757 758 } else if (uaa->info.idProduct == USB_PRODUCT_WACOM_GRAPHIRE3_4X5) { 759 760 static uint8_t reportbuf[] = {2, 2, 2}; 761 762 /* 763 * The Graphire3 needs 0x0202 to be written to 764 * feature report ID 2 before it'll start 765 * returning digitizer data. 766 */ 767 error = usbd_req_set_report(uaa->device, NULL, 768 reportbuf, sizeof(reportbuf), 769 uaa->info.bIfaceIndex, UHID_FEATURE_REPORT, 2); 770 771 if (error) { 772 DPRINTF("set report failed, error=%s (ignored)\n", 773 usbd_errstr(error)); 774 } 775 sc->sc_repdesc_size = sizeof(uhid_graphire3_4x5_report_descr); 776 sc->sc_repdesc_ptr = __DECONST(void *, &uhid_graphire3_4x5_report_descr); 777 sc->sc_flags |= UHID_FLAG_STATIC_DESC; 778 } 779 } else if ((uaa->info.bInterfaceClass == UICLASS_VENDOR) && 780 (uaa->info.bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER) && 781 (uaa->info.bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD)) { 782 static const uint8_t reportbuf[3] = {1, 3, 0}; 783 /* 784 * Turn off the four LEDs on the gamepad which 785 * are blinking by default: 786 */ 787 error = usbd_req_set_report(uaa->device, NULL, 788 __DECONST(void *, reportbuf), sizeof(reportbuf), 789 uaa->info.bIfaceIndex, UHID_OUTPUT_REPORT, 0); 790 if (error) { 791 DPRINTF("set output report failed, error=%s (ignored)\n", 792 usbd_errstr(error)); 793 } 794 /* the Xbox 360 gamepad has no report descriptor */ 795 sc->sc_repdesc_size = sizeof(uhid_xb360gp_report_descr); 796 sc->sc_repdesc_ptr = __DECONST(void *, &uhid_xb360gp_report_descr); 797 sc->sc_flags |= UHID_FLAG_STATIC_DESC; 798 } 799 if (sc->sc_repdesc_ptr == NULL) { 800 801 error = usbd_req_get_hid_desc(uaa->device, NULL, 802 &sc->sc_repdesc_ptr, &sc->sc_repdesc_size, 803 M_USBDEV, uaa->info.bIfaceIndex); 804 805 if (error) { 806 device_printf(dev, "no report descriptor\n"); 807 goto detach; 808 } 809 } 810 error = usbd_req_set_idle(uaa->device, NULL, 811 uaa->info.bIfaceIndex, 0, 0); 812 813 if (error) { 814 DPRINTF("set idle failed, error=%s (ignored)\n", 815 usbd_errstr(error)); 816 } 817 sc->sc_isize = hid_report_size 818 (sc->sc_repdesc_ptr, sc->sc_repdesc_size, hid_input, &sc->sc_iid); 819 820 sc->sc_osize = hid_report_size 821 (sc->sc_repdesc_ptr, sc->sc_repdesc_size, hid_output, &sc->sc_oid); 822 823 sc->sc_fsize = hid_report_size 824 (sc->sc_repdesc_ptr, sc->sc_repdesc_size, hid_feature, &sc->sc_fid); 825 826 if (sc->sc_isize > UHID_BSIZE) { 827 DPRINTF("input size is too large, " 828 "%d bytes (truncating)\n", 829 sc->sc_isize); 830 sc->sc_isize = UHID_BSIZE; 831 } 832 if (sc->sc_osize > UHID_BSIZE) { 833 DPRINTF("output size is too large, " 834 "%d bytes (truncating)\n", 835 sc->sc_osize); 836 sc->sc_osize = UHID_BSIZE; 837 } 838 if (sc->sc_fsize > UHID_BSIZE) { 839 DPRINTF("feature size is too large, " 840 "%d bytes (truncating)\n", 841 sc->sc_fsize); 842 sc->sc_fsize = UHID_BSIZE; 843 } 844 845 error = usb_fifo_attach(uaa->device, sc, &sc->sc_mtx, 846 &uhid_fifo_methods, &sc->sc_fifo, 847 unit, -1, uaa->info.bIfaceIndex, 848 UID_ROOT, GID_OPERATOR, 0644); 849 if (error) { 850 goto detach; 851 } 852 return (0); /* success */ 853 854 detach: 855 uhid_detach(dev); 856 return (ENOMEM); 857 } 858 859 static int 860 uhid_detach(device_t dev) 861 { 862 struct uhid_softc *sc = device_get_softc(dev); 863 864 usb_fifo_detach(&sc->sc_fifo); 865 866 usbd_transfer_unsetup(sc->sc_xfer, UHID_N_TRANSFER); 867 868 if (sc->sc_repdesc_ptr) { 869 if (!(sc->sc_flags & UHID_FLAG_STATIC_DESC)) { 870 free(sc->sc_repdesc_ptr, M_USBDEV); 871 } 872 } 873 mtx_destroy(&sc->sc_mtx); 874 875 return (0); 876 } 877 878 static devclass_t uhid_devclass; 879 880 static device_method_t uhid_methods[] = { 881 DEVMETHOD(device_probe, uhid_probe), 882 DEVMETHOD(device_attach, uhid_attach), 883 DEVMETHOD(device_detach, uhid_detach), 884 885 DEVMETHOD_END 886 }; 887 888 static driver_t uhid_driver = { 889 .name = "uhid", 890 .methods = uhid_methods, 891 .size = sizeof(struct uhid_softc), 892 }; 893 894 DRIVER_MODULE(uhid, uhub, uhid_driver, uhid_devclass, NULL, 0); 895 MODULE_DEPEND(uhid, usb, 1, 1, 1); 896 MODULE_VERSION(uhid, 1); 897 USB_PNP_HOST_INFO(uhid_devs); 898