1 /* $FreeBSD$ */ 2 /*- 3 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 4 * 5 * Copyright (c) 2008-2022 Hans Petter Selasky 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include "implementation/global_implementation.h" 30 31 #if USB_HAVE_UGEN 32 33 /* defines */ 34 35 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 36 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 37 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 38 39 /* function prototypes */ 40 41 static usb_callback_t ugen_read_clear_stall_callback; 42 static usb_callback_t ugen_write_clear_stall_callback; 43 static usb_callback_t ugen_ctrl_read_callback; 44 static usb_callback_t ugen_ctrl_write_callback; 45 static usb_callback_t ugen_isoc_read_callback; 46 static usb_callback_t ugen_isoc_write_callback; 47 static usb_callback_t ugen_ctrl_fs_callback; 48 49 static usb_fifo_open_t ugen_open; 50 static usb_fifo_close_t ugen_close; 51 static usb_fifo_ioctl_t ugen_ioctl; 52 static usb_fifo_ioctl_t ugen_ioctl_post; 53 static usb_fifo_cmd_t ugen_start_read; 54 static usb_fifo_cmd_t ugen_start_write; 55 static usb_fifo_cmd_t ugen_stop_io; 56 57 static int ugen_transfer_setup(struct usb_fifo *, 58 const struct usb_config *, uint8_t); 59 static int ugen_open_pipe_write(struct usb_fifo *); 60 static int ugen_open_pipe_read(struct usb_fifo *); 61 static int ugen_set_config(struct usb_fifo *, uint8_t); 62 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 63 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 64 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 65 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 66 static int ugen_re_enumerate(struct usb_fifo *); 67 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 68 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 69 static int ugen_fs_uninit(struct usb_fifo *f); 70 71 /* structures */ 72 73 struct usb_fifo_methods usb_ugen_methods = { 74 .f_open = &ugen_open, 75 .f_close = &ugen_close, 76 .f_ioctl = &ugen_ioctl, 77 .f_ioctl_post = &ugen_ioctl_post, 78 .f_start_read = &ugen_start_read, 79 .f_stop_read = &ugen_stop_io, 80 .f_start_write = &ugen_start_write, 81 .f_stop_write = &ugen_stop_io, 82 }; 83 84 /* prototypes */ 85 86 static int 87 ugen_transfer_setup(struct usb_fifo *f, 88 const struct usb_config *setup, uint8_t n_setup) 89 { 90 struct usb_endpoint *ep = usb_fifo_softc(f); 91 struct usb_device *udev = f->udev; 92 uint8_t iface_index = ep->iface_index; 93 int error; 94 95 mtx_unlock(f->priv_mtx); 96 97 /* 98 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 99 * exiting the mutex and checking things 100 */ 101 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 102 setup, n_setup, f, f->priv_mtx); 103 if (error == 0) { 104 if (f->xfer[0]->nframes == 1) { 105 error = usb_fifo_alloc_buffer(f, 106 f->xfer[0]->max_data_length, 2); 107 } else { 108 error = usb_fifo_alloc_buffer(f, 109 f->xfer[0]->max_frame_size, 110 2 * f->xfer[0]->nframes); 111 } 112 if (error) { 113 usbd_transfer_unsetup(f->xfer, n_setup); 114 } 115 } 116 mtx_lock(f->priv_mtx); 117 118 return (error); 119 } 120 121 static int 122 ugen_open(struct usb_fifo *f, int fflags) 123 { 124 struct usb_endpoint *ep = usb_fifo_softc(f); 125 struct usb_endpoint_descriptor *ed = ep->edesc; 126 uint8_t type; 127 128 DPRINTFN(1, "flag=0x%x pid=%d\n", fflags, curthread); 129 130 mtx_lock(f->priv_mtx); 131 switch (usbd_get_speed(f->udev)) { 132 case USB_SPEED_LOW: 133 case USB_SPEED_FULL: 134 f->nframes = UGEN_HW_FRAMES; 135 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 136 break; 137 default: 138 f->nframes = UGEN_HW_FRAMES * 8; 139 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 140 break; 141 } 142 143 type = ed->bmAttributes & UE_XFERTYPE; 144 if (type == UE_INTERRUPT) { 145 f->bufsize = 0; /* use "wMaxPacketSize" */ 146 } 147 f->timeout = USB_NO_TIMEOUT; 148 f->flag_short = 0; 149 f->fifo_zlp = 0; 150 mtx_unlock(f->priv_mtx); 151 152 return (0); 153 } 154 155 static void 156 ugen_close(struct usb_fifo *f, int fflags) 157 { 158 159 DPRINTFN(1, "flag=0x%x pid=%d\n", fflags, curthread); 160 161 /* cleanup */ 162 163 mtx_lock(f->priv_mtx); 164 usbd_transfer_stop(f->xfer[0]); 165 usbd_transfer_stop(f->xfer[1]); 166 mtx_unlock(f->priv_mtx); 167 168 usbd_transfer_unsetup(f->xfer, 2); 169 usb_fifo_free_buffer(f); 170 171 if (ugen_fs_uninit(f)) { 172 /* ignore any errors - we are closing */ 173 DPRINTFN(6, "no FIFOs\n"); 174 } 175 } 176 177 static int 178 ugen_open_pipe_write(struct usb_fifo *f) 179 { 180 struct usb_config usb_config[2]; 181 struct usb_endpoint *ep = usb_fifo_softc(f); 182 struct usb_endpoint_descriptor *ed = ep->edesc; 183 184 USB_MTX_ASSERT(f->priv_mtx, MA_OWNED); 185 186 if (f->xfer[0] || f->xfer[1]) { 187 /* transfers are already opened */ 188 return (0); 189 } 190 (void)memset_s(usb_config, sizeof(usb_config), 0, sizeof(usb_config)); 191 192 usb_config[1].type = UE_CONTROL; 193 usb_config[1].endpoint = 0; 194 usb_config[1].direction = UE_DIR_ANY; 195 usb_config[1].timeout = 1000; /* 1 second */ 196 usb_config[1].interval = 50;/* 50 milliseconds */ 197 usb_config[1].bufsize = sizeof(struct usb_device_request); 198 usb_config[1].callback = &ugen_write_clear_stall_callback; 199 usb_config[1].usb_mode = USB_MODE_HOST; 200 201 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 202 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 203 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 204 usb_config[0].direction = UE_DIR_TX; 205 usb_config[0].interval = USB_DEFAULT_INTERVAL; 206 usb_config[0].flags.proxy_buffer = 1; 207 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 208 209 switch (ed->bmAttributes & UE_XFERTYPE) { 210 case UE_INTERRUPT: 211 case UE_BULK: 212 if (f->flag_short) { 213 usb_config[0].flags.force_short_xfer = 1; 214 } 215 usb_config[0].callback = &ugen_ctrl_write_callback; 216 usb_config[0].timeout = f->timeout; 217 usb_config[0].frames = 1; 218 usb_config[0].bufsize = f->bufsize; 219 if (ugen_transfer_setup(f, usb_config, 2)) { 220 return (EIO); 221 } 222 /* first transfer does not clear stall */ 223 f->flag_stall = 0; 224 break; 225 226 case UE_ISOCHRONOUS: 227 usb_config[0].flags.short_xfer_ok = 1; 228 usb_config[0].bufsize = 0; /* use default */ 229 usb_config[0].frames = f->nframes; 230 usb_config[0].callback = &ugen_isoc_write_callback; 231 usb_config[0].timeout = 0; 232 233 /* clone configuration */ 234 usb_config[1] = usb_config[0]; 235 236 if (ugen_transfer_setup(f, usb_config, 2)) { 237 return (EIO); 238 } 239 break; 240 default: 241 return (EINVAL); 242 } 243 return (0); 244 } 245 246 static int 247 ugen_open_pipe_read(struct usb_fifo *f) 248 { 249 struct usb_config usb_config[2]; 250 struct usb_endpoint *ep = usb_fifo_softc(f); 251 struct usb_endpoint_descriptor *ed = ep->edesc; 252 253 USB_MTX_ASSERT(f->priv_mtx, MA_OWNED); 254 255 if (f->xfer[0] || f->xfer[1]) { 256 /* transfers are already opened */ 257 return (0); 258 } 259 (void)memset_s(usb_config, sizeof(usb_config), 0, sizeof(usb_config)); 260 261 usb_config[1].type = UE_CONTROL; 262 usb_config[1].endpoint = 0; 263 usb_config[1].direction = UE_DIR_ANY; 264 usb_config[1].timeout = 1000; /* 1 second */ 265 usb_config[1].interval = 50;/* 50 milliseconds */ 266 usb_config[1].bufsize = sizeof(struct usb_device_request); 267 usb_config[1].callback = &ugen_read_clear_stall_callback; 268 usb_config[1].usb_mode = USB_MODE_HOST; 269 270 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 271 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 272 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 273 usb_config[0].direction = UE_DIR_RX; 274 usb_config[0].interval = USB_DEFAULT_INTERVAL; 275 usb_config[0].flags.proxy_buffer = 1; 276 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 277 278 switch (ed->bmAttributes & UE_XFERTYPE) { 279 case UE_INTERRUPT: 280 case UE_BULK: 281 if (f->flag_short) { 282 usb_config[0].flags.short_xfer_ok = 1; 283 } 284 usb_config[0].timeout = f->timeout; 285 usb_config[0].frames = 1; 286 usb_config[0].callback = &ugen_ctrl_read_callback; 287 usb_config[0].bufsize = f->bufsize; 288 289 if (ugen_transfer_setup(f, usb_config, 2)) { 290 return (EIO); 291 } 292 /* first transfer does not clear stall */ 293 f->flag_stall = 0; 294 break; 295 296 case UE_ISOCHRONOUS: 297 usb_config[0].flags.short_xfer_ok = 1; 298 usb_config[0].bufsize = 0; /* use default */ 299 usb_config[0].frames = f->nframes; 300 usb_config[0].callback = &ugen_isoc_read_callback; 301 usb_config[0].timeout = 0; 302 303 /* clone configuration */ 304 usb_config[1] = usb_config[0]; 305 306 if (ugen_transfer_setup(f, usb_config, 2)) { 307 return (EIO); 308 } 309 break; 310 311 default: 312 return (EINVAL); 313 } 314 return (0); 315 } 316 317 static void 318 ugen_start_read(struct usb_fifo *f) 319 { 320 /* check that pipes are open */ 321 if (ugen_open_pipe_read(f)) { 322 /* signal error */ 323 usb_fifo_put_data_error(f); 324 } 325 /* start transfers */ 326 usbd_transfer_start(f->xfer[0]); 327 usbd_transfer_start(f->xfer[1]); 328 } 329 330 static void 331 ugen_start_write(struct usb_fifo *f) 332 { 333 /* check that pipes are open */ 334 if (ugen_open_pipe_write(f)) { 335 /* signal error */ 336 usb_fifo_get_data_error(f); 337 } 338 /* start transfers */ 339 usbd_transfer_start(f->xfer[0]); 340 usbd_transfer_start(f->xfer[1]); 341 } 342 343 static void 344 ugen_stop_io(struct usb_fifo *f) 345 { 346 /* stop transfers */ 347 usbd_transfer_stop(f->xfer[0]); 348 usbd_transfer_stop(f->xfer[1]); 349 } 350 351 static void 352 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 353 { 354 struct usb_fifo *f = usbd_xfer_softc(xfer); 355 struct usb_mbuf *m; 356 357 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 358 359 switch (USB_GET_STATE(xfer)) { 360 case USB_ST_TRANSFERRED: 361 if (xfer->actlen == 0) { 362 if (f->fifo_zlp != 4) { 363 f->fifo_zlp++; 364 } else { 365 /* 366 * Throttle a little bit we have multiple ZLPs 367 * in a row! 368 */ 369 xfer->interval = 64; /* ms */ 370 } 371 } else { 372 /* clear throttle */ 373 xfer->interval = 0; 374 f->fifo_zlp = 0; 375 } 376 usb_fifo_put_data(f, xfer->frbuffers, 0, 377 xfer->actlen, 1); 378 379 case USB_ST_SETUP: 380 if (f->flag_stall) { 381 usbd_transfer_start(f->xfer[1]); 382 break; 383 } 384 USB_IF_POLL(&f->free_q, m); 385 if (m) { 386 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 387 usbd_transfer_submit(xfer); 388 } 389 break; 390 391 default: /* Error */ 392 if (xfer->error != USB_ERR_CANCELLED) { 393 /* send a zero length packet to userland */ 394 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 395 f->flag_stall = 1; 396 f->fifo_zlp = 0; 397 usbd_transfer_start(f->xfer[1]); 398 } 399 break; 400 } 401 } 402 403 static void 404 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 405 { 406 struct usb_fifo *f = usbd_xfer_softc(xfer); 407 usb_frlength_t actlen; 408 409 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 410 411 switch (USB_GET_STATE(xfer)) { 412 case USB_ST_SETUP: 413 case USB_ST_TRANSFERRED: 414 /* 415 * If writing is in stall, just jump to clear stall 416 * callback and solve the situation. 417 */ 418 if (f->flag_stall) { 419 usbd_transfer_start(f->xfer[1]); 420 break; 421 } 422 /* 423 * Write data, setup and perform hardware transfer. 424 */ 425 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 426 xfer->max_data_length, &actlen, 0)) { 427 usbd_xfer_set_frame_len(xfer, 0, actlen); 428 usbd_transfer_submit(xfer); 429 } 430 break; 431 432 default: /* Error */ 433 if (xfer->error != USB_ERR_CANCELLED) { 434 f->flag_stall = 1; 435 usbd_transfer_start(f->xfer[1]); 436 } 437 break; 438 } 439 } 440 441 static void 442 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 443 { 444 struct usb_fifo *f = usbd_xfer_softc(xfer); 445 struct usb_xfer *xfer_other = f->xfer[0]; 446 447 if (f->flag_stall == 0) { 448 /* nothing to do */ 449 return; 450 } 451 if (usbd_clear_stall_callback(xfer, xfer_other)) { 452 DPRINTFN(5, "f=%p: stall cleared\n", f); 453 f->flag_stall = 0; 454 usbd_transfer_start(xfer_other); 455 } 456 } 457 458 static void 459 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 460 { 461 struct usb_fifo *f = usbd_xfer_softc(xfer); 462 struct usb_xfer *xfer_other = f->xfer[0]; 463 464 if (f->flag_stall == 0) { 465 /* nothing to do */ 466 return; 467 } 468 if (usbd_clear_stall_callback(xfer, xfer_other)) { 469 DPRINTFN(5, "f=%p: stall cleared\n", f); 470 f->flag_stall = 0; 471 usbd_transfer_start(xfer_other); 472 } 473 } 474 475 static void 476 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 477 { 478 struct usb_fifo *f = usbd_xfer_softc(xfer); 479 usb_frlength_t offset; 480 usb_frcount_t n; 481 482 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 483 484 switch (USB_GET_STATE(xfer)) { 485 case USB_ST_TRANSFERRED: 486 487 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 488 489 offset = 0; 490 491 for (n = 0; n != xfer->aframes; n++) { 492 usb_fifo_put_data(f, xfer->frbuffers, offset, 493 xfer->frlengths[n], 1); 494 offset += xfer->max_frame_size; 495 } 496 497 case USB_ST_SETUP: 498 tr_setup: 499 for (n = 0; n != xfer->nframes; n++) { 500 /* setup size for next transfer */ 501 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 502 } 503 usbd_transfer_submit(xfer); 504 break; 505 506 default: /* Error */ 507 if (xfer->error == USB_ERR_CANCELLED) { 508 break; 509 } 510 goto tr_setup; 511 } 512 } 513 514 static void 515 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 516 { 517 struct usb_fifo *f = usbd_xfer_softc(xfer); 518 usb_frlength_t actlen; 519 usb_frlength_t offset; 520 usb_frcount_t n; 521 522 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 523 524 switch (USB_GET_STATE(xfer)) { 525 case USB_ST_TRANSFERRED: 526 case USB_ST_SETUP: 527 tr_setup: 528 offset = 0; 529 for (n = 0; n != xfer->nframes; n++) { 530 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 531 xfer->max_frame_size, &actlen, 1)) { 532 usbd_xfer_set_frame_len(xfer, n, actlen); 533 offset += actlen; 534 } else { 535 break; 536 } 537 } 538 539 for (; n != xfer->nframes; n++) { 540 /* fill in zero frames */ 541 usbd_xfer_set_frame_len(xfer, n, 0); 542 } 543 usbd_transfer_submit(xfer); 544 break; 545 546 default: /* Error */ 547 if (xfer->error == USB_ERR_CANCELLED) { 548 break; 549 } 550 goto tr_setup; 551 } 552 } 553 554 static int 555 ugen_set_config(struct usb_fifo *f, uint8_t index) 556 { 557 DPRINTFN(2, "index %u\n", index); 558 559 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 560 /* not possible in device side mode */ 561 return (ENOTTY); 562 } 563 564 /* make sure all FIFO's are gone */ 565 /* else there can be a deadlock */ 566 if (ugen_fs_uninit(f)) { 567 /* ignore any errors */ 568 DPRINTFN(6, "no FIFOs\n"); 569 } 570 571 if (usbd_start_set_config(f->udev, index) != 0) 572 return (EIO); 573 574 return (0); 575 } 576 577 static int 578 ugen_set_interface(struct usb_fifo *f, 579 uint8_t iface_index, uint8_t alt_index) 580 { 581 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 582 583 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 584 /* not possible in device side mode */ 585 return (ENOTTY); 586 } 587 /* make sure all FIFO's are gone */ 588 /* else there can be a deadlock */ 589 if (ugen_fs_uninit(f)) { 590 /* ignore any errors */ 591 DPRINTFN(6, "no FIFOs\n"); 592 } 593 /* change setting - will free generic FIFOs, if any */ 594 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 595 return (EIO); 596 } 597 /* probe and attach */ 598 if (usb_probe_and_attach(f->udev, iface_index)) { 599 return (EIO); 600 } 601 return (0); 602 } 603 604 /*------------------------------------------------------------------------* 605 * ugen_get_cdesc 606 * 607 * This function will retrieve the complete configuration descriptor 608 * at the given index. 609 *------------------------------------------------------------------------*/ 610 static int 611 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 612 { 613 struct usb_config_descriptor *cdesc = NULL; 614 struct usb_device *udev = f->udev; 615 int error; 616 uint16_t len; 617 uint8_t free_data; 618 619 DPRINTFN(6, "\n"); 620 621 if (ugd->ugd_data == NULL) { 622 /* userland pointer should not be zero */ 623 return (EINVAL); 624 } 625 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 626 (ugd->ugd_config_index == udev->curr_config_index)) { 627 cdesc = usbd_get_config_descriptor(udev); 628 if (cdesc == NULL) 629 return (ENXIO); 630 free_data = 0; 631 632 } else { 633 #if (USB_HAVE_FIXED_CONFIG == 0) 634 if (usbd_req_get_config_desc_full(udev, 635 NULL, &cdesc, ugd->ugd_config_index)) { 636 return (ENXIO); 637 } 638 free_data = 1; 639 #else 640 /* configuration descriptor data is shared */ 641 return (EINVAL); 642 #endif 643 } 644 645 len = UGETW(cdesc->wTotalLength); 646 if (len > ugd->ugd_maxlen) { 647 len = ugd->ugd_maxlen; 648 } 649 DPRINTFN(6, "len=%u\n", len); 650 651 ugd->ugd_actlen = len; 652 ugd->ugd_offset = 0; 653 654 error = copyout(cdesc, ugd->ugd_data, len); 655 656 if (free_data) 657 usbd_free_config_desc(udev, cdesc); 658 659 return (error); 660 } 661 662 static int 663 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 664 { 665 void *ptr; 666 uint16_t size; 667 int error; 668 uint8_t do_unlock; 669 670 /* Protect scratch area */ 671 do_unlock = usbd_ctrl_lock(f->udev); 672 673 ptr = f->udev->scratch.data; 674 size = sizeof(f->udev->scratch.data); 675 676 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 677 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 678 error = EINVAL; 679 } else { 680 if (size > ((uint8_t *)ptr)[0]) { 681 size = ((uint8_t *)ptr)[0]; 682 } 683 if (size > ugd->ugd_maxlen) { 684 size = ugd->ugd_maxlen; 685 } 686 ugd->ugd_actlen = size; 687 ugd->ugd_offset = 0; 688 689 error = copyout(ptr, ugd->ugd_data, size); 690 } 691 if (do_unlock) 692 usbd_ctrl_unlock(f->udev); 693 694 return (error); 695 } 696 697 /*------------------------------------------------------------------------* 698 * ugen_get_iface_driver 699 * 700 * This function generates an USB interface description for userland. 701 * 702 * Returns: 703 * 0: Success 704 * Else: Failure 705 *------------------------------------------------------------------------*/ 706 static int 707 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 708 { 709 struct usb_device *udev = f->udev; 710 struct usb_interface *iface = NULL; 711 const char *ptr = NULL; 712 const char *desc = NULL; 713 unsigned int len; 714 unsigned int maxlen; 715 char buf[128]; 716 int error; 717 718 DPRINTFN(6, "\n"); 719 720 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 721 /* userland pointer should not be zero */ 722 return (EINVAL); 723 } 724 725 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 726 if ((iface == NULL) || (iface->idesc == NULL)) { 727 /* invalid interface index */ 728 return (EINVAL); 729 } 730 731 /* read out device nameunit string, if any */ 732 if ((iface->subdev != NULL) && 733 device_is_attached(iface->subdev) && 734 (ptr = device_get_nameunit(iface->subdev)) && 735 (desc = device_get_desc(iface->subdev))) { 736 /* print description */ 737 error = snprintf_s(buf, sizeof(buf), sizeof(buf) - 1, "%s: <%s>", ptr, desc); 738 if (error != EOK) { 739 return (EFAULT); 740 } 741 742 /* range checks */ 743 maxlen = ugd->ugd_maxlen - 1; 744 len = strlen(buf); 745 if (len > maxlen) 746 len = maxlen; 747 748 /* update actual length, including terminating zero */ 749 ugd->ugd_actlen = len + 1; 750 751 /* copy out interface description */ 752 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 753 } else { 754 /* zero length string is default */ 755 error = copyout("", ugd->ugd_data, 1); 756 } 757 return (error); 758 } 759 760 /*------------------------------------------------------------------------* 761 * ugen_fill_deviceinfo 762 * 763 * This function dumps information about an USB device to the 764 * structure pointed to by the "di" argument. 765 * 766 * Returns: 767 * 0: Success 768 * Else: Failure 769 *------------------------------------------------------------------------*/ 770 int 771 ugen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 772 { 773 struct usb_device *udev = NULL; 774 struct usb_device *hub = NULL; 775 776 udev = f->udev; 777 778 (void)memset_s(di, sizeof(di[0]), 0, sizeof(di[0])); 779 780 di->udi_bus = device_get_unit(udev->bus->bdev); 781 di->udi_addr = udev->address; 782 di->udi_index = udev->device_index; 783 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 784 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 785 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 786 usb_printbcd(di->udi_release, sizeof(di->udi_release), 787 UGETW(udev->ddesc.bcdDevice)); 788 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 789 di->udi_productNo = UGETW(udev->ddesc.idProduct); 790 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 791 di->udi_class = udev->ddesc.bDeviceClass; 792 di->udi_subclass = udev->ddesc.bDeviceSubClass; 793 di->udi_protocol = udev->ddesc.bDeviceProtocol; 794 di->udi_config_no = udev->curr_config_no; 795 di->udi_config_index = udev->curr_config_index; 796 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 797 di->udi_speed = udev->speed; 798 di->udi_mode = udev->flags.usb_mode; 799 di->udi_power_mode = udev->power_mode; 800 di->udi_suspended = udev->flags.peer_suspended; 801 802 hub = udev->parent_hub; 803 if (hub) { 804 di->udi_hubaddr = hub->address; 805 di->udi_hubindex = hub->device_index; 806 di->udi_hubport = udev->port_no; 807 } 808 return (0); 809 } 810 811 int 812 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 813 { 814 int error; 815 uint16_t len; 816 uint16_t actlen; 817 818 if (usb_check_request(f->udev, &ur->ucr_request)) { 819 return (EPERM); 820 } 821 len = UGETW(ur->ucr_request.wLength); 822 823 /* check if "ucr_data" is valid */ 824 if (len != 0) { 825 if (ur->ucr_data == NULL) { 826 return (EFAULT); 827 } 828 } 829 /* do the USB request */ 830 error = usbd_do_request_flags 831 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 832 (ur->ucr_flags & USB_SHORT_XFER_OK) | 833 USB_USER_DATA_PTR, &actlen, 834 USB_DEFAULT_TIMEOUT); 835 836 ur->ucr_actlen = actlen; 837 838 if (error) { 839 error = EIO; 840 } 841 return (error); 842 } 843 844 /*------------------------------------------------------------------------ 845 * ugen_re_enumerate 846 *------------------------------------------------------------------------*/ 847 static int 848 ugen_re_enumerate(struct usb_fifo *f) 849 { 850 struct usb_device *udev = f->udev; 851 int error; 852 853 /* 854 * This request can be useful for testing USB drivers: 855 */ 856 error = priv_check(curthread, PRIV_DRIVER); 857 if (error) { 858 return (error); 859 } 860 if (udev->flags.usb_mode != USB_MODE_HOST) { 861 /* not possible in device side mode */ 862 DPRINTFN(6, "device mode\n"); 863 return (ENOTTY); 864 } 865 /* make sure all FIFO's are gone */ 866 /* else there can be a deadlock */ 867 if (ugen_fs_uninit(f)) { 868 /* ignore any errors */ 869 DPRINTFN(6, "no FIFOs\n"); 870 } 871 /* start re-enumeration of device */ 872 usbd_start_re_enumerate(udev); 873 return (0); 874 } 875 876 int 877 ugen_fs_uninit(struct usb_fifo *f) 878 { 879 if (f->fs_xfer == NULL) { 880 return (EINVAL); 881 } 882 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 883 bsd_free(f->fs_xfer, M_USB); 884 f->fs_xfer = NULL; 885 f->fs_ep_max = 0; 886 f->fs_ep_ptr = NULL; 887 f->flag_iscomplete = 0; 888 usb_fifo_free_buffer(f); 889 return (0); 890 } 891 892 static uint8_t 893 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 894 { 895 struct usb_mbuf *m = NULL; 896 897 USB_IF_DEQUEUE(&f->used_q, m); 898 899 if (m) { 900 *pindex = *((uint8_t *)(m->cur_data_ptr)); 901 902 USB_IF_ENQUEUE(&f->free_q, m); 903 904 return (0); /* success */ 905 } else { 906 *pindex = 0; /* fix compiler warning */ 907 908 f->flag_iscomplete = 0; 909 } 910 return (1); /* failure */ 911 } 912 913 static void 914 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 915 { 916 struct usb_mbuf *m = NULL; 917 918 USB_IF_DEQUEUE(&f->free_q, m); 919 920 if (m == NULL) { 921 /* can happen during close */ 922 DPRINTF("out of buffers\n"); 923 return; 924 } 925 USB_MBUF_RESET(m); 926 927 *((uint8_t *)(m->cur_data_ptr)) = index; 928 929 USB_IF_ENQUEUE(&f->used_q, m); 930 931 f->flag_iscomplete = 1; 932 933 usb_fifo_wakeup(f); 934 } 935 936 static int 937 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 938 { 939 struct usb_device_request *req = NULL; 940 struct usb_xfer *xfer = NULL; 941 struct usb_fs_endpoint fs_ep; 942 void *uaddr = NULL; /* userland pointer */ 943 void *kaddr = NULL; 944 usb_frlength_t offset; 945 usb_frlength_t rem; 946 usb_frcount_t n; 947 uint32_t length; 948 int error; 949 uint8_t isread; 950 951 if (ep_index >= f->fs_ep_max) { 952 return (EINVAL); 953 } 954 xfer = f->fs_xfer[ep_index]; 955 if (xfer == NULL) { 956 return (EINVAL); 957 } 958 mtx_lock(f->priv_mtx); 959 if (usbd_transfer_pending(xfer)) { 960 mtx_unlock(f->priv_mtx); 961 return (EBUSY); /* should not happen */ 962 } 963 mtx_unlock(f->priv_mtx); 964 965 error = copyin(f->fs_ep_ptr + 966 ep_index, &fs_ep, sizeof(fs_ep)); 967 if (error) { 968 return (error); 969 } 970 /* security checks */ 971 972 if (fs_ep.nFrames > xfer->max_frame_count) { 973 xfer->error = USB_ERR_INVAL; 974 goto complete; 975 } 976 if (fs_ep.nFrames == 0) { 977 xfer->error = USB_ERR_INVAL; 978 goto complete; 979 } 980 error = copyin(fs_ep.ppBuffer, &uaddr, sizeof(void *)); 981 if (error) { 982 return (error); 983 } 984 /* reset first frame */ 985 usbd_xfer_set_frame_offset(xfer, 0, 0); 986 987 if (xfer->flags_int.control_xfr) { 988 req = xfer->frbuffers[0].buffer; 989 990 error = copyin(fs_ep.pLength, 991 &length, sizeof(length)); 992 if (error) { 993 return (error); 994 } 995 if (length != sizeof(*req)) { 996 xfer->error = USB_ERR_INVAL; 997 goto complete; 998 } 999 if (length != 0) { 1000 error = copyin(uaddr, req, length); 1001 if (error) { 1002 return (error); 1003 } 1004 } 1005 if (usb_check_request(f->udev, req)) { 1006 xfer->error = USB_ERR_INVAL; 1007 goto complete; 1008 } 1009 usbd_xfer_set_frame_len(xfer, 0, length); 1010 1011 /* Host mode only ! */ 1012 if ((req->bmRequestType & 1013 (UT_READ | UT_WRITE)) == UT_READ) { 1014 isread = 1; 1015 } else { 1016 isread = 0; 1017 } 1018 n = 1; 1019 offset = sizeof(*req); 1020 1021 } else { 1022 /* Device and Host mode */ 1023 if (USB_GET_DATA_ISREAD(xfer)) { 1024 isread = 1; 1025 } else { 1026 isread = 0; 1027 } 1028 n = 0; 1029 offset = 0; 1030 } 1031 1032 rem = usbd_xfer_max_len(xfer); 1033 xfer->nframes = fs_ep.nFrames; 1034 xfer->timeout = fs_ep.timeout; 1035 if (xfer->timeout > 65535) { 1036 xfer->timeout = 65535; 1037 } 1038 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1039 xfer->flags.short_xfer_ok = 1; 1040 else 1041 xfer->flags.short_xfer_ok = 0; 1042 1043 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1044 xfer->flags.short_frames_ok = 1; 1045 else 1046 xfer->flags.short_frames_ok = 0; 1047 1048 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1049 xfer->flags.force_short_xfer = 1; 1050 else 1051 xfer->flags.force_short_xfer = 0; 1052 1053 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1054 usbd_xfer_set_stall(xfer); 1055 else 1056 xfer->flags.stall_pipe = 0; 1057 1058 for (; n != xfer->nframes; n++) { 1059 error = copyin(fs_ep.pLength + n, 1060 &length, sizeof(length)); 1061 if (error) { 1062 break; 1063 } 1064 usbd_xfer_set_frame_len(xfer, n, length); 1065 1066 if (length > rem) { 1067 xfer->error = USB_ERR_INVAL; 1068 goto complete; 1069 } 1070 rem -= length; 1071 1072 if (!isread) { 1073 /* we need to know the source buffer */ 1074 error = copyin(fs_ep.ppBuffer + n, &uaddr, sizeof(void *)); 1075 if (error) { 1076 break; 1077 } 1078 if (xfer->flags_int.isochronous_xfr) { 1079 /* get kernel buffer address */ 1080 kaddr = xfer->frbuffers[0].buffer; 1081 kaddr = USB_ADD_BYTES(kaddr, offset); 1082 } else { 1083 /* set current frame offset */ 1084 usbd_xfer_set_frame_offset(xfer, offset, n); 1085 1086 /* get kernel buffer address */ 1087 kaddr = xfer->frbuffers[n].buffer; 1088 } 1089 1090 /* move data */ 1091 error = copyin(uaddr, kaddr, length); 1092 if (error) { 1093 break; 1094 } 1095 } 1096 offset += length; 1097 } 1098 return (error); 1099 1100 complete: 1101 mtx_lock(f->priv_mtx); 1102 ugen_fs_set_complete(f, ep_index); 1103 mtx_unlock(f->priv_mtx); 1104 return (0); 1105 } 1106 1107 static int 1108 ugen_fs_copy_out_cancelled(struct usb_fs_endpoint *fs_ep_uptr) 1109 { 1110 struct usb_fs_endpoint fs_ep; 1111 int error; 1112 1113 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1114 if (error) 1115 return (error); 1116 1117 fs_ep.status = USB_ERR_CANCELLED; 1118 fs_ep.aFrames = 0; 1119 fs_ep.isoc_time_complete = 0; 1120 1121 /* update "aFrames" */ 1122 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1123 sizeof(fs_ep.aFrames)); 1124 if (error) 1125 goto done; 1126 1127 /* update "isoc_time_complete" */ 1128 error = copyout(&fs_ep.isoc_time_complete, 1129 &fs_ep_uptr->isoc_time_complete, 1130 sizeof(fs_ep.isoc_time_complete)); 1131 if (error) 1132 goto done; 1133 1134 /* update "status" */ 1135 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1136 sizeof(fs_ep.status)); 1137 done: 1138 return (error); 1139 } 1140 1141 static int 1142 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1143 { 1144 struct usb_device_request *req = NULL; 1145 struct usb_xfer *xfer = NULL; 1146 struct usb_fs_endpoint fs_ep; 1147 struct usb_fs_endpoint *fs_ep_uptr = NULL; /* userland ptr */ 1148 void *uaddr = NULL; /* userland ptr */ 1149 void *kaddr = NULL; 1150 usb_frlength_t offset; 1151 usb_frlength_t rem; 1152 usb_frcount_t n; 1153 uint32_t length; 1154 uint32_t temp; 1155 int error; 1156 uint8_t isread; 1157 1158 if (ep_index >= f->fs_ep_max) 1159 return (EINVAL); 1160 1161 xfer = f->fs_xfer[ep_index]; 1162 if (xfer == NULL) 1163 return (EINVAL); 1164 1165 mtx_lock(f->priv_mtx); 1166 if (!xfer->flags_int.transferring && 1167 !xfer->flags_int.started) { 1168 mtx_unlock(f->priv_mtx); 1169 DPRINTF("Returning fake cancel event\n"); 1170 return (ugen_fs_copy_out_cancelled(f->fs_ep_ptr + ep_index)); 1171 } else if (usbd_transfer_pending(xfer)) { 1172 mtx_unlock(f->priv_mtx); 1173 return (EBUSY); /* should not happen */ 1174 } 1175 mtx_unlock(f->priv_mtx); 1176 1177 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1178 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1179 if (error) { 1180 return (error); 1181 } 1182 fs_ep.status = xfer->error; 1183 fs_ep.aFrames = xfer->aframes; 1184 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1185 if (xfer->error) { 1186 goto complete; 1187 } 1188 if (xfer->flags_int.control_xfr) { 1189 req = xfer->frbuffers[0].buffer; 1190 1191 /* Host mode only ! */ 1192 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1193 isread = 1; 1194 } else { 1195 isread = 0; 1196 } 1197 if (xfer->nframes == 0) 1198 n = 0; /* should never happen */ 1199 else 1200 n = 1; 1201 } else { 1202 /* Device and Host mode */ 1203 if (USB_GET_DATA_ISREAD(xfer)) { 1204 isread = 1; 1205 } else { 1206 isread = 0; 1207 } 1208 n = 0; 1209 } 1210 1211 /* Update lengths and copy out data */ 1212 1213 rem = usbd_xfer_max_len(xfer); 1214 offset = 0; 1215 1216 for (; n != xfer->nframes; n++) { 1217 /* get initial length into "temp" */ 1218 error = copyin(fs_ep.pLength + n, 1219 &temp, sizeof(temp)); 1220 if (error) { 1221 return (error); 1222 } 1223 if (temp > rem) { 1224 /* the userland length has been corrupted */ 1225 DPRINTF("corrupt userland length " 1226 "%u > %u\n", temp, rem); 1227 fs_ep.status = USB_ERR_INVAL; 1228 goto complete; 1229 } 1230 rem -= temp; 1231 1232 /* get actual transfer length */ 1233 length = xfer->frlengths[n]; 1234 if (length > temp) { 1235 /* data overflow */ 1236 fs_ep.status = USB_ERR_INVAL; 1237 DPRINTF("data overflow %u > %u\n", 1238 length, temp); 1239 goto complete; 1240 } 1241 if (isread) { 1242 /* we need to know the destination buffer */ 1243 error = copyin(fs_ep.ppBuffer + n, &uaddr, sizeof(void *)); 1244 if (error) { 1245 return (error); 1246 } 1247 if (xfer->flags_int.isochronous_xfr) { 1248 /* only one frame buffer */ 1249 kaddr = USB_ADD_BYTES( 1250 xfer->frbuffers[0].buffer, offset); 1251 } else { 1252 /* multiple frame buffers */ 1253 kaddr = xfer->frbuffers[n].buffer; 1254 } 1255 1256 /* move data */ 1257 error = copyout(kaddr, uaddr, length); 1258 if (error) { 1259 return (error); 1260 } 1261 } 1262 /* 1263 * Update offset according to initial length, which is 1264 * needed by isochronous transfers! 1265 */ 1266 offset += temp; 1267 1268 /* update length */ 1269 error = copyout(&length, 1270 fs_ep.pLength + n, sizeof(length)); 1271 if (error) { 1272 return (error); 1273 } 1274 } 1275 1276 complete: 1277 /* update "aFrames" */ 1278 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1279 sizeof(fs_ep.aFrames)); 1280 if (error) 1281 goto done; 1282 1283 /* update "isoc_time_complete" */ 1284 error = copyout(&fs_ep.isoc_time_complete, 1285 &fs_ep_uptr->isoc_time_complete, 1286 sizeof(fs_ep.isoc_time_complete)); 1287 if (error) 1288 goto done; 1289 1290 /* update "status" */ 1291 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1292 sizeof(fs_ep.status)); 1293 done: 1294 return (error); 1295 } 1296 1297 static uint8_t 1298 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1299 { 1300 struct usb_fifo *f_rx; 1301 struct usb_fifo *f_tx; 1302 1303 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1304 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1305 1306 if (((unsigned int)fflags & FREAD) && f_rx && 1307 (f_rx->xfer[0] || f_rx->xfer[1])) { 1308 return (1); /* RX FIFO in use */ 1309 } 1310 if (((unsigned int)fflags & FWRITE) && f_tx && 1311 (f_tx->xfer[0] || f_tx->xfer[1])) { 1312 return (1); /* TX FIFO in use */ 1313 } 1314 return (0); /* not in use */ 1315 } 1316 1317 static int 1318 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1319 { 1320 struct usb_config usb_config[1]; 1321 struct usb_device_request req; 1322 union { 1323 struct usb_fs_complete *pcomp; 1324 struct usb_fs_start *pstart; 1325 struct usb_fs_stop *pstop; 1326 struct usb_fs_open *popen; 1327 struct usb_fs_open_stream *popen_stream; 1328 struct usb_fs_close *pclose; 1329 struct usb_fs_clear_stall_sync *pstall; 1330 void *addr; 1331 } u; 1332 struct usb_endpoint *ep; 1333 struct usb_endpoint_descriptor *ed; 1334 struct usb_xfer *xfer; 1335 int error = 0; 1336 uint8_t iface_index; 1337 uint8_t isread; 1338 uint8_t ep_index; 1339 uint8_t pre_scale; 1340 1341 u.addr = addr; 1342 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1343 1344 switch (cmd) { 1345 case USB_FS_COMPLETE: { 1346 struct usb_fs_complete comp; 1347 mtx_lock(f->priv_mtx); 1348 error = ugen_fs_get_complete(f, &ep_index); 1349 mtx_unlock(f->priv_mtx); 1350 1351 if (error) { 1352 error = EBUSY; 1353 break; 1354 } 1355 error = copyin((const void *)u.addr, &comp, sizeof(struct usb_fs_complete)); 1356 if (error != ENOERR) { 1357 break; 1358 } 1359 u.pcomp = ∁ 1360 u.pcomp->ep_index = ep_index; 1361 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1362 break; 1363 } 1364 1365 case USB_FS_START: { 1366 struct usb_fs_start start; 1367 error = copyin((const void *)u.addr, &start, sizeof(struct usb_fs_start)); 1368 if (error != ENOERR) { 1369 break; 1370 } 1371 u.pstart = &start; 1372 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1373 if (error) 1374 break; 1375 mtx_lock(f->priv_mtx); 1376 xfer = f->fs_xfer[u.pstart->ep_index]; 1377 usbd_transfer_start(xfer); 1378 mtx_unlock(f->priv_mtx); 1379 break; 1380 } 1381 1382 case USB_FS_STOP: { 1383 struct usb_fs_stop stop; 1384 error = copyin((const void *)u.addr, &stop, sizeof(struct usb_fs_stop)); 1385 if (error != ENOERR) { 1386 break; 1387 } 1388 u.pstop = &stop; 1389 if (u.pstop->ep_index >= f->fs_ep_max) { 1390 error = EINVAL; 1391 break; 1392 } 1393 mtx_lock(f->priv_mtx); 1394 xfer = f->fs_xfer[u.pstart->ep_index]; 1395 if (usbd_transfer_pending(xfer)) { 1396 usbd_transfer_stop(xfer); 1397 1398 /* 1399 * Check if the USB transfer was stopped 1400 * before it was even started and fake a 1401 * cancel event. 1402 */ 1403 if (!xfer->flags_int.transferring && 1404 !xfer->flags_int.started) { 1405 DPRINTF("Issuing fake completion event\n"); 1406 ugen_fs_set_complete(xfer->priv_sc, 1407 USB_P2U(xfer->priv_fifo)); 1408 } 1409 } 1410 mtx_unlock(f->priv_mtx); 1411 break; 1412 } 1413 1414 case USB_FS_OPEN: 1415 case USB_FS_OPEN_STREAM: { 1416 struct usb_fs_open_stream open; 1417 error = copyin((const void *)u.addr, &open.fs_open, sizeof(struct usb_fs_open)); 1418 if (error != ENOERR) { 1419 break; 1420 } 1421 u.popen = &open.fs_open; 1422 if (u.popen->ep_index >= f->fs_ep_max) { 1423 error = EINVAL; 1424 break; 1425 } 1426 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1427 error = EBUSY; 1428 break; 1429 } 1430 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1431 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1432 } 1433 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1434 pre_scale = 1; 1435 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1436 } else { 1437 pre_scale = 0; 1438 } 1439 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1440 u.popen->max_frames = USB_FS_MAX_FRAMES; 1441 error = copyout((const void *)&open.fs_open, addr, sizeof(struct usb_fs_open)); 1442 break; 1443 } 1444 if (u.popen->max_frames == 0) { 1445 error = EINVAL; 1446 break; 1447 } 1448 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1449 if (ep == NULL) { 1450 error = EINVAL; 1451 break; 1452 } 1453 ed = ep->edesc; 1454 if (ed == NULL) { 1455 error = ENXIO; 1456 break; 1457 } 1458 iface_index = ep->iface_index; 1459 1460 (void)memset_s(usb_config, sizeof(usb_config), 0, sizeof(usb_config)); 1461 1462 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1463 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1464 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1465 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1466 usb_config[0].flags.proxy_buffer = 1; 1467 if (pre_scale != 0) 1468 usb_config[0].flags.pre_scale_frames = 1; 1469 usb_config[0].callback = &ugen_ctrl_fs_callback; 1470 usb_config[0].timeout = 0; /* no timeout */ 1471 usb_config[0].frames = u.popen->max_frames; 1472 usb_config[0].bufsize = u.popen->max_bufsize; 1473 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1474 if (cmd == USB_FS_OPEN_STREAM) { 1475 error = copyin((const void *)u.addr, &open, sizeof(struct usb_fs_open_stream)); 1476 if (error != ENOERR) { 1477 break; 1478 } 1479 u.popen_stream = &open; 1480 usb_config[0].stream_id = u.popen_stream->stream_id; 1481 } 1482 1483 if (usb_config[0].type == UE_CONTROL) { 1484 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1485 error = EINVAL; 1486 break; 1487 } 1488 } else { 1489 isread = ((usb_config[0].endpoint & 1490 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1491 1492 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1493 isread = !isread; 1494 } 1495 /* check permissions */ 1496 if (isread) { 1497 if (!((unsigned int)fflags & FREAD)) { 1498 error = EPERM; 1499 break; 1500 } 1501 } else { 1502 if (!((unsigned int)fflags & FWRITE)) { 1503 error = EPERM; 1504 break; 1505 } 1506 } 1507 } 1508 error = usbd_transfer_setup(f->udev, &iface_index, 1509 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1510 f, f->priv_mtx); 1511 if (error == 0) { 1512 /* update maximums */ 1513 u.popen->max_packet_length = 1514 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1515 u.popen->max_bufsize = 1516 f->fs_xfer[u.popen->ep_index]->max_data_length; 1517 /* update number of frames */ 1518 u.popen->max_frames = 1519 f->fs_xfer[u.popen->ep_index]->nframes; 1520 /* store index of endpoint */ 1521 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1522 ((uint8_t *)0) + u.popen->ep_index; 1523 error = copyout((const void *)&open.fs_open, addr, sizeof(struct usb_fs_open)); 1524 } else { 1525 error = ENOMEM; 1526 } 1527 break; 1528 } 1529 1530 case USB_FS_CLOSE: { 1531 struct usb_fs_close close; 1532 error = copyin((const void *)u.addr, &close, sizeof(struct usb_fs_close)); 1533 if (error != ENOERR) { 1534 break; 1535 } 1536 u.pclose = &close; 1537 if (u.pclose->ep_index >= f->fs_ep_max) { 1538 error = EINVAL; 1539 break; 1540 } 1541 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1542 error = EINVAL; 1543 break; 1544 } 1545 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1546 break; 1547 } 1548 1549 case USB_FS_CLEAR_STALL_SYNC: { 1550 struct usb_fs_clear_stall_sync stall; 1551 error = copyin((const void *)u.addr, &stall, sizeof(struct usb_fs_clear_stall_sync)); 1552 if (error != ENOERR) { 1553 break; 1554 } 1555 u.pstall = &stall; 1556 if (u.pstall->ep_index >= f->fs_ep_max) { 1557 error = EINVAL; 1558 break; 1559 } 1560 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1561 error = EINVAL; 1562 break; 1563 } 1564 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1565 error = EINVAL; 1566 break; 1567 } 1568 mtx_lock(f->priv_mtx); 1569 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1570 mtx_unlock(f->priv_mtx); 1571 1572 if (error) { 1573 return (EBUSY); 1574 } 1575 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1576 1577 /* setup a clear-stall packet */ 1578 req.bmRequestType = UT_WRITE_ENDPOINT; 1579 req.bRequest = UR_CLEAR_FEATURE; 1580 USETW(req.wValue, UF_ENDPOINT_HALT); 1581 req.wIndex[0] = ep->edesc->bEndpointAddress; 1582 req.wIndex[1] = 0; 1583 USETW(req.wLength, 0); 1584 1585 error = usbd_do_request(f->udev, NULL, &req, NULL); 1586 if (error == 0) { 1587 usbd_clear_data_toggle(f->udev, ep); 1588 } else { 1589 error = ENXIO; 1590 } 1591 break; 1592 } 1593 1594 default: 1595 error = ENOIOCTL; 1596 break; 1597 } 1598 1599 DPRINTFN(6, "error=%d\n", error); 1600 1601 return (error); 1602 } 1603 1604 static int 1605 ugen_set_short_xfer(struct usb_fifo *f, const void *addr) 1606 { 1607 uint8_t t; 1608 1609 if (*(int *)addr) 1610 t = 1; 1611 else 1612 t = 0; 1613 1614 if (f->flag_short == t) { 1615 /* same value like before - accept */ 1616 return (0); 1617 } 1618 if (f->xfer[0] || f->xfer[1]) { 1619 /* cannot change this during transfer */ 1620 return (EBUSY); 1621 } 1622 f->flag_short = t; 1623 return (0); 1624 } 1625 1626 static int 1627 ugen_set_timeout(struct usb_fifo *f, const void *addr) 1628 { 1629 f->timeout = *(int *)addr; 1630 if (f->timeout > 65535) { 1631 /* limit user input */ 1632 f->timeout = 65535; 1633 } 1634 return (0); 1635 } 1636 1637 static int 1638 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1639 { 1640 if (f->xfer[0]) { 1641 *(int *)addr = f->xfer[0]->max_frame_size; 1642 } else { 1643 return (EINVAL); 1644 } 1645 return (0); 1646 } 1647 1648 static int 1649 ugen_set_buffer_size(struct usb_fifo *f, const void *addr) 1650 { 1651 usb_frlength_t t; 1652 1653 if (*(int *)addr < 0) 1654 t = 0; /* use "wMaxPacketSize" */ 1655 else if (*(int *)addr < (256 * 1024)) 1656 t = *(int *)addr; 1657 else 1658 t = 256 * 1024; 1659 1660 if (f->bufsize == t) { 1661 /* same value like before - accept */ 1662 return (0); 1663 } 1664 if (f->xfer[0] || f->xfer[1]) { 1665 /* cannot change this during transfer */ 1666 return (EBUSY); 1667 } 1668 f->bufsize = t; 1669 return (0); 1670 } 1671 1672 static int 1673 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1674 { 1675 *(int *)addr = f->bufsize; 1676 return (0); 1677 } 1678 1679 static int 1680 ugen_get_iface_desc(struct usb_fifo *f, 1681 struct usb_interface_descriptor *idesc) 1682 { 1683 struct usb_interface *iface; 1684 1685 iface = usbd_get_iface(f->udev, f->iface_index); 1686 if (iface && iface->idesc) { 1687 *idesc = *(iface->idesc); 1688 } else { 1689 return (EIO); 1690 } 1691 return (0); 1692 } 1693 1694 static int 1695 ugen_get_endpoint_desc(struct usb_fifo *f, 1696 struct usb_endpoint_descriptor *ed) 1697 { 1698 struct usb_endpoint *ep; 1699 1700 ep = usb_fifo_softc(f); 1701 1702 if (ep && ep->edesc) { 1703 *ed = *ep->edesc; 1704 } else { 1705 return (EINVAL); 1706 } 1707 return (0); 1708 } 1709 1710 static int 1711 ugen_set_power_mode(struct usb_fifo *f, int mode) 1712 { 1713 struct usb_device *udev = f->udev; 1714 int err; 1715 uint8_t old_mode; 1716 1717 if ((udev == NULL) || 1718 (udev->parent_hub == NULL)) { 1719 return (EINVAL); 1720 } 1721 err = priv_check(curthread, PRIV_DRIVER); 1722 if (err) 1723 return (err); 1724 1725 /* get old power mode */ 1726 old_mode = udev->power_mode; 1727 1728 /* if no change, then just return */ 1729 if (old_mode == mode) 1730 return (0); 1731 1732 switch (mode) { 1733 case USB_POWER_MODE_OFF: 1734 if (udev->flags.usb_mode == USB_MODE_HOST && 1735 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1736 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF; 1737 } 1738 /* set power mode will wake up the explore thread */ 1739 break; 1740 1741 case USB_POWER_MODE_ON: 1742 case USB_POWER_MODE_SAVE: 1743 break; 1744 1745 case USB_POWER_MODE_RESUME: 1746 #if USB_HAVE_POWERD 1747 /* let USB-powerd handle resume */ 1748 USB_BUS_LOCK(udev->bus); 1749 udev->pwr_save.write_refs++; 1750 udev->pwr_save.last_xfer_time = LOS_TickCountGet(); 1751 USB_BUS_UNLOCK(udev->bus); 1752 1753 /* set new power mode */ 1754 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1755 1756 /* wait for resume to complete */ 1757 usb_pause_mtx(NULL, hz / 4); 1758 1759 /* clear write reference */ 1760 USB_BUS_LOCK(udev->bus); 1761 udev->pwr_save.write_refs--; 1762 USB_BUS_UNLOCK(udev->bus); 1763 #endif 1764 mode = USB_POWER_MODE_SAVE; 1765 break; 1766 1767 case USB_POWER_MODE_SUSPEND: 1768 #if USB_HAVE_POWERD 1769 /* let USB-powerd handle suspend */ 1770 USB_BUS_LOCK(udev->bus); 1771 udev->pwr_save.last_xfer_time = LOS_TickCountGet() - (256 * hz); 1772 USB_BUS_UNLOCK(udev->bus); 1773 #endif 1774 mode = USB_POWER_MODE_SAVE; 1775 break; 1776 1777 default: 1778 return (EINVAL); 1779 } 1780 1781 if (err) 1782 return (ENXIO); /* I/O failure */ 1783 1784 /* if we are powered off we need to re-enumerate first */ 1785 if (old_mode == USB_POWER_MODE_OFF) { 1786 if (udev->flags.usb_mode == USB_MODE_HOST && 1787 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1788 udev->re_enumerate_wait = USB_RE_ENUM_START; 1789 } 1790 /* set power mode will wake up the explore thread */ 1791 } 1792 1793 /* set new power mode */ 1794 usbd_set_power_mode(udev, mode); 1795 1796 return (0); /* success */ 1797 } 1798 1799 static int 1800 ugen_get_power_mode(struct usb_fifo *f) 1801 { 1802 struct usb_device *udev = f->udev; 1803 1804 if (udev == NULL) 1805 return (USB_POWER_MODE_ON); 1806 1807 return (udev->power_mode); 1808 } 1809 1810 static int 1811 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp) 1812 { 1813 struct usb_device *udev = f->udev; 1814 struct usb_device *next = NULL; 1815 unsigned int nlevel = 0; 1816 1817 if (udev == NULL) 1818 goto error; 1819 1820 dpp->udp_bus = device_get_unit(udev->bus->bdev); 1821 dpp->udp_index = udev->device_index; 1822 1823 /* count port levels */ 1824 next = udev; 1825 while (next->parent_hub != NULL) { 1826 nlevel++; 1827 next = next->parent_hub; 1828 } 1829 1830 /* check if too many levels */ 1831 if (nlevel > USB_DEVICE_PORT_PATH_MAX) 1832 goto error; 1833 1834 /* store total level of ports */ 1835 dpp->udp_port_level = nlevel; 1836 1837 /* store port index array */ 1838 next = udev; 1839 while (next->parent_hub != NULL) { 1840 dpp->udp_port_no[--nlevel] = next->port_no; 1841 next = next->parent_hub; 1842 } 1843 return (0); /* success */ 1844 1845 error: 1846 return (EINVAL); /* failure */ 1847 } 1848 1849 static int 1850 ugen_get_power_usage(struct usb_fifo *f) 1851 { 1852 struct usb_device *udev = f->udev; 1853 1854 if (udev == NULL) 1855 return (0); 1856 1857 return (udev->power); 1858 } 1859 1860 static int 1861 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1862 uint8_t set, uint16_t feature) 1863 { 1864 struct usb_device *udev = f->udev; 1865 struct usb_hub *hub = NULL; 1866 int err; 1867 1868 err = priv_check(curthread, PRIV_DRIVER); 1869 if (err) { 1870 return (err); 1871 } 1872 if (port_no == 0) { 1873 return (EINVAL); 1874 } 1875 if ((udev == NULL) || 1876 (udev->hub == NULL)) { 1877 return (EINVAL); 1878 } 1879 hub = udev->hub; 1880 1881 if (port_no > hub->nports) { 1882 return (EINVAL); 1883 } 1884 if (set) 1885 err = usbd_req_set_port_feature(udev, 1886 NULL, port_no, feature); 1887 else 1888 err = usbd_req_clear_port_feature(udev, 1889 NULL, port_no, feature); 1890 1891 if (err) 1892 return (ENXIO); /* failure */ 1893 1894 return (0); /* success */ 1895 } 1896 1897 static int 1898 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1899 { 1900 struct usb_fifo *f_rx; 1901 struct usb_fifo *f_tx; 1902 int error = 0; 1903 int data; 1904 1905 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1906 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1907 1908 switch (cmd) { 1909 case USB_SET_RX_SHORT_XFER: 1910 error = copyin((const void *)addr, &data, sizeof(data)); 1911 if (error != ENOERR) { 1912 break; 1913 } 1914 if ((unsigned int)fflags & FREAD) { 1915 error = ugen_set_short_xfer(f_rx, &data); 1916 } else { 1917 error = EINVAL; 1918 } 1919 break; 1920 1921 case USB_SET_TX_FORCE_SHORT: 1922 error = copyin((const void *)addr, &data, sizeof(data)); 1923 if (error != ENOERR) { 1924 break; 1925 } 1926 if ((unsigned int)fflags & FWRITE) { 1927 error = ugen_set_short_xfer(f_tx, &data); 1928 } else { 1929 error = EINVAL; 1930 } 1931 break; 1932 1933 case USB_SET_RX_TIMEOUT: 1934 error = copyin((const void *)addr, &data, sizeof(data)); 1935 if (error != ENOERR) { 1936 break; 1937 } 1938 if ((unsigned int)fflags & FREAD) { 1939 error = ugen_set_timeout(f_rx, &data); 1940 } else { 1941 error = EINVAL; 1942 } 1943 break; 1944 1945 case USB_SET_TX_TIMEOUT: 1946 error = copyin((const void *)addr, &data, sizeof(data)); 1947 if (error != ENOERR) { 1948 break; 1949 } 1950 if ((unsigned int)fflags & FWRITE) { 1951 error = ugen_set_timeout(f_tx, &data); 1952 } else { 1953 error = EINVAL; 1954 } 1955 break; 1956 1957 case USB_GET_RX_FRAME_SIZE: 1958 if ((unsigned int)fflags & FREAD) { 1959 error = ugen_get_frame_size(f_rx, &data); 1960 } else { 1961 error = EINVAL; 1962 } 1963 if (error == ENOERR) { 1964 error = copyout((const void *)&data, addr, sizeof(data)); 1965 } 1966 break; 1967 1968 case USB_GET_TX_FRAME_SIZE: 1969 if ((unsigned int)fflags & FWRITE) { 1970 error = ugen_get_frame_size(f_tx, &data); 1971 } else { 1972 error = EINVAL; 1973 } 1974 if (error == ENOERR) { 1975 error = copyout((const void *)&data, addr, sizeof(data)); 1976 } 1977 break; 1978 1979 case USB_SET_RX_BUFFER_SIZE: 1980 error = copyin((const void *)addr, &data, sizeof(data)); 1981 if (error != ENOERR) { 1982 break; 1983 } 1984 if ((unsigned int)fflags & FREAD) { 1985 error = ugen_set_buffer_size(f_rx, &data); 1986 } else { 1987 error = EINVAL; 1988 } 1989 break; 1990 1991 case USB_SET_TX_BUFFER_SIZE: 1992 error = copyin((const void *)addr, &data, sizeof(data)); 1993 if (error != ENOERR) { 1994 break; 1995 } 1996 if ((unsigned int)fflags & FWRITE) { 1997 error = ugen_set_buffer_size(f_tx, &data); 1998 } else { 1999 error = EINVAL; 2000 } 2001 break; 2002 2003 case USB_GET_RX_BUFFER_SIZE: 2004 if ((unsigned int)fflags & FREAD) { 2005 error = ugen_get_buffer_size(f_rx, &data); 2006 } else { 2007 error = EINVAL; 2008 } 2009 if (error == ENOERR) { 2010 error = copyout((const void *)&data, addr, sizeof(data)); 2011 } 2012 break; 2013 2014 case USB_GET_TX_BUFFER_SIZE: 2015 if ((unsigned int)fflags & FWRITE) { 2016 error = ugen_get_buffer_size(f_tx, &data); 2017 } else { 2018 error = EINVAL; 2019 } 2020 if (error == ENOERR) { 2021 error = copyout((const void *)&data, addr, sizeof(data)); 2022 } 2023 break; 2024 2025 case USB_GET_RX_INTERFACE_DESC: { 2026 struct usb_interface_descriptor desc; 2027 if ((unsigned int)fflags & FREAD) { 2028 error = ugen_get_iface_desc(f_rx, &desc); 2029 } else { 2030 error = EINVAL; 2031 } 2032 if (error == ENOERR) { 2033 error = copyout((const void *)&desc, addr, sizeof(struct usb_interface_descriptor)); 2034 } 2035 break; 2036 } 2037 2038 case USB_GET_TX_INTERFACE_DESC: { 2039 struct usb_interface_descriptor desc; 2040 if ((unsigned int)fflags & FWRITE) { 2041 error = ugen_get_iface_desc(f_tx, &desc); 2042 } else { 2043 error = EINVAL; 2044 } 2045 if (error == ENOERR) { 2046 error = copyout((const void *)&desc, addr, sizeof(struct usb_interface_descriptor)); 2047 } 2048 break; 2049 } 2050 2051 case USB_GET_RX_ENDPOINT_DESC: { 2052 struct usb_endpoint_descriptor ed; 2053 if ((unsigned int)fflags & FREAD) { 2054 error = ugen_get_endpoint_desc(f_rx, &ed); 2055 } else { 2056 error = EINVAL; 2057 } 2058 if (error == ENOERR) { 2059 error = copyout((const void *)&ed, addr, sizeof(struct usb_endpoint_descriptor)); 2060 } 2061 break; 2062 } 2063 2064 case USB_GET_TX_ENDPOINT_DESC: { 2065 struct usb_endpoint_descriptor ed; 2066 if ((unsigned int)fflags & FWRITE) { 2067 error = ugen_get_endpoint_desc(f_tx, &ed); 2068 } else { 2069 error = EINVAL; 2070 } 2071 if (error == ENOERR) { 2072 error = copyout((const void *)&ed, addr, sizeof(struct usb_endpoint_descriptor)); 2073 } 2074 break; 2075 } 2076 2077 case USB_SET_RX_STALL_FLAG: 2078 error = copyin((const void *)addr, &data, sizeof(data)); 2079 if (error != ENOERR) { 2080 break; 2081 } 2082 if (((unsigned int)fflags & FREAD) && data) { 2083 f_rx->flag_stall = 1; 2084 } 2085 break; 2086 2087 case USB_SET_TX_STALL_FLAG: 2088 error = copyin((const void *)addr, &data, sizeof(data)); 2089 if (error != ENOERR) { 2090 break; 2091 } 2092 if (((unsigned int)fflags & FWRITE) && data) { 2093 f_tx->flag_stall = 1; 2094 } 2095 break; 2096 2097 default: 2098 error = ENOIOCTL; 2099 break; 2100 } 2101 return (error); 2102 } 2103 2104 static int 2105 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2106 { 2107 union { 2108 struct usb_interface_descriptor *idesc; 2109 struct usb_alt_interface *ai; 2110 struct usb_device_descriptor *ddesc; 2111 struct usb_config_descriptor *cdesc; 2112 struct usb_device_stats *stat; 2113 struct usb_fs_init *pinit; 2114 struct usb_fs_uninit *puninit; 2115 struct usb_device_port_path *dpp; 2116 uint32_t *ptime; 2117 void *addr; 2118 int *pint; 2119 } u; 2120 struct usb_device_descriptor *dtemp; 2121 struct usb_config_descriptor *ctemp; 2122 struct usb_interface *iface; 2123 int error = 0; 2124 uint8_t n; 2125 2126 u.addr = addr; 2127 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2128 2129 switch (cmd) { 2130 case USB_DISCOVER: 2131 usb_needs_explore_all(); 2132 break; 2133 2134 case USB_SETDEBUG: 2135 if (!((unsigned int)fflags & FWRITE)) { 2136 error = EPERM; 2137 break; 2138 } 2139 error = copyin((const void *)addr, &usb_debug, sizeof(usb_debug)); 2140 break; 2141 2142 case USB_GET_CONFIG: { 2143 int index = f->udev->curr_config_index; 2144 error = copyout((const void *)&index, addr, sizeof(index)); 2145 break; 2146 } 2147 2148 case USB_SET_CONFIG: { 2149 int index; 2150 if (!((unsigned int)fflags & FWRITE)) { 2151 error = EPERM; 2152 break; 2153 } 2154 error = copyin((const void *)addr, &index, sizeof(index)); 2155 if (error) { 2156 break; 2157 } 2158 error = ugen_set_config(f, index); 2159 break; 2160 } 2161 2162 case USB_GET_ALTINTERFACE: { 2163 struct usb_alt_interface ai; 2164 error = copyin((const void *)u.addr, &ai, sizeof(struct usb_alt_interface)); 2165 if (error != ENOERR) { 2166 break; 2167 } 2168 u.ai = &ai; 2169 iface = usbd_get_iface(f->udev, 2170 u.ai->uai_interface_index); 2171 if (iface && iface->idesc) { 2172 u.ai->uai_alt_index = iface->alt_index; 2173 } else { 2174 error = EINVAL; 2175 } 2176 if (error == ENOERR) { 2177 error = copyout((const void *)&ai, addr, sizeof(struct usb_alt_interface)); 2178 } 2179 break; 2180 } 2181 2182 case USB_SET_ALTINTERFACE: { 2183 struct usb_alt_interface ai; 2184 if (!((unsigned int)fflags & FWRITE)) { 2185 error = EPERM; 2186 break; 2187 } 2188 error = copyin((const void *)u.addr, &ai, sizeof(struct usb_alt_interface)); 2189 if (error != ENOERR) { 2190 break; 2191 } 2192 u.ai = &ai; 2193 error = ugen_set_interface(f, 2194 u.ai->uai_interface_index, u.ai->uai_alt_index); 2195 break; 2196 } 2197 2198 case USB_GET_DEVICE_DESC: 2199 dtemp = usbd_get_device_descriptor(f->udev); 2200 if (!dtemp) { 2201 error = EIO; 2202 break; 2203 } 2204 error = copyout((const void *)dtemp, u.ddesc, sizeof(struct usb_device_descriptor)); 2205 break; 2206 2207 case USB_GET_CONFIG_DESC: 2208 ctemp = usbd_get_config_descriptor(f->udev); 2209 if (!ctemp) { 2210 error = EIO; 2211 break; 2212 } 2213 error = copyout((const void *)ctemp, u.cdesc, sizeof(struct usb_config_descriptor)); 2214 break; 2215 2216 case USB_GET_FULL_DESC: { 2217 struct usb_gen_descriptor ugd; 2218 error = copyin((const void *)u.addr, &ugd, sizeof(struct usb_gen_descriptor)); 2219 if (error != ENOERR) { 2220 break; 2221 } 2222 error = ugen_get_cdesc(f, &ugd); 2223 if (error != ENOERR) { 2224 break; 2225 } 2226 error = copyout((const void *)&ugd, addr, sizeof(struct usb_gen_descriptor)); 2227 break; 2228 } 2229 2230 case USB_GET_STRING_DESC: { 2231 struct usb_gen_descriptor ugd; 2232 error = copyin((const void *)u.addr, &ugd, sizeof(struct usb_gen_descriptor)); 2233 if (error != ENOERR) { 2234 break; 2235 } 2236 error = ugen_get_sdesc(f, &ugd); 2237 if (error != ENOERR) { 2238 break; 2239 } 2240 error = copyout((const void *)&ugd, addr, sizeof(struct usb_gen_descriptor)); 2241 break; 2242 } 2243 2244 case USB_GET_IFACE_DRIVER: { 2245 struct usb_gen_descriptor ugd; 2246 error = copyin((const void *)u.addr, &ugd, sizeof(struct usb_gen_descriptor)); 2247 if (error != ENOERR) { 2248 break; 2249 } 2250 error = ugen_get_iface_driver(f, &ugd); 2251 if (error != ENOERR) { 2252 break; 2253 } 2254 error = copyout((const void *)&ugd, addr, sizeof(struct usb_gen_descriptor)); 2255 break; 2256 } 2257 2258 case USB_REQUEST: 2259 case USB_DO_REQUEST: { 2260 struct usb_ctl_request ur; 2261 if (!((unsigned int)fflags & FWRITE)) { 2262 error = EPERM; 2263 break; 2264 } 2265 error = copyin((const void *)u.addr, &ur, sizeof(struct usb_ctl_request)); 2266 if (error != ENOERR) { 2267 break; 2268 } 2269 error = ugen_do_request(f, &ur); 2270 if (error != ENOERR) { 2271 break; 2272 } 2273 error = copyout((const void *)&ur, addr, sizeof(struct usb_ctl_request)); 2274 break; 2275 } 2276 2277 case USB_DEVICEINFO: 2278 case USB_GET_DEVICEINFO: { 2279 struct usb_device_info di; 2280 error = ugen_fill_deviceinfo(f, &di); 2281 if (error != ENOERR) { 2282 break; 2283 } 2284 error = copyout((const void *)&di, addr, sizeof(struct usb_device_info)); 2285 break; 2286 } 2287 2288 case USB_DEVICESTATS: { 2289 struct usb_device_stats stat; 2290 error = copyin((const void *)u.addr, &stat, sizeof(struct usb_device_stats)); 2291 if (error != ENOERR) { 2292 break; 2293 } 2294 u.stat = &stat; 2295 for (n = 0; n != 4; n++) { 2296 u.stat->uds_requests_fail[n] = 2297 f->udev->stats_err.uds_requests[n]; 2298 u.stat->uds_requests_ok[n] = 2299 f->udev->stats_ok.uds_requests[n]; 2300 } 2301 error = copyout((const void *)&stat, addr, sizeof(struct usb_device_stats)); 2302 break; 2303 } 2304 2305 case USB_DEVICEENUMERATE: 2306 error = ugen_re_enumerate(f); 2307 break; 2308 2309 case USB_GET_PLUGTIME: 2310 error = copyout((const void *)&f->udev->plugtime, u.ptime, sizeof(uint32_t)); 2311 break; 2312 2313 case USB_CLAIM_INTERFACE: 2314 case USB_RELEASE_INTERFACE: 2315 /* TODO */ 2316 break; 2317 2318 case USB_IFACE_DRIVER_ACTIVE: { 2319 int pint; 2320 error = copyin((const void *)u.pint, &pint, sizeof(pint)); 2321 if (error != ENOERR) { 2322 break; 2323 } 2324 n = pint & 0xFF; 2325 2326 iface = usbd_get_iface(f->udev, n); 2327 2328 if (iface && iface->subdev) 2329 error = 0; 2330 else 2331 error = ENXIO; 2332 break; 2333 } 2334 2335 case USB_IFACE_DRIVER_DETACH: { 2336 int pint; 2337 error = priv_check(curthread, PRIV_DRIVER); 2338 2339 if (error) 2340 break; 2341 2342 error = copyin((const void *)u.pint, &pint, sizeof(pint)); 2343 if (error != ENOERR) { 2344 break; 2345 } 2346 n = pint & 0xFF; 2347 2348 if (n == USB_IFACE_INDEX_ANY) { 2349 error = EINVAL; 2350 break; 2351 } 2352 2353 /* 2354 * Detach the currently attached driver. 2355 */ 2356 usb_detach_device(f->udev, n, 0); 2357 2358 /* 2359 * Set parent to self, this should keep attach away 2360 * until the next set configuration event. 2361 */ 2362 usbd_set_parent_iface(f->udev, n, n); 2363 break; 2364 } 2365 2366 case USB_SET_POWER_MODE: { 2367 int mode; 2368 error = copyin((const void *)u.pint, &mode, sizeof(mode)); 2369 if (error != ENOERR) { 2370 break; 2371 } 2372 error = ugen_set_power_mode(f, mode); 2373 break; 2374 } 2375 2376 case USB_GET_POWER_MODE: { 2377 int mode = ugen_get_power_mode(f); 2378 error = copyout((const void *)&mode, u.pint, sizeof(mode)); 2379 break; 2380 } 2381 2382 case USB_GET_DEV_PORT_PATH: { 2383 struct usb_device_port_path dpp; 2384 error = copyin((const void *)u.dpp, &dpp, sizeof(struct usb_device_port_path)); 2385 if (error != ENOERR) { 2386 break; 2387 } 2388 error = ugen_get_port_path(f, &dpp); 2389 if (error != ENOERR) { 2390 break; 2391 } 2392 error = copyout((const void *)&dpp, u.dpp, sizeof(struct usb_device_port_path)); 2393 break; 2394 } 2395 2396 case USB_GET_POWER_USAGE: { 2397 int usage = ugen_get_power_usage(f); 2398 error = copyout((const void *)&usage, u.pint, sizeof(usage)); 2399 break; 2400 } 2401 2402 case USB_SET_PORT_ENABLE: { 2403 int port; 2404 error = copyin((const void *)u.pint, &port, sizeof(port)); 2405 if (error != ENOERR) { 2406 break; 2407 } 2408 error = ugen_do_port_feature(f, 2409 port, 1, UHF_PORT_ENABLE); 2410 break; 2411 } 2412 2413 case USB_SET_PORT_DISABLE: { 2414 int port; 2415 error = copyin((const void *)u.pint, &port, sizeof(port)); 2416 if (error != ENOERR) { 2417 break; 2418 } 2419 error = ugen_do_port_feature(f, 2420 port, 0, UHF_PORT_ENABLE); 2421 break; 2422 } 2423 2424 case USB_FS_INIT: { 2425 /* verify input parameters */ 2426 struct usb_fs_init init; 2427 error = copyin((const void *)u.addr, &init, sizeof(struct usb_fs_init)); 2428 if (error != ENOERR) { 2429 break; 2430 } 2431 u.pinit = &init; 2432 if (u.pinit->pEndpoints == NULL) { 2433 error = EINVAL; 2434 break; 2435 } 2436 if (u.pinit->ep_index_max > 127) { 2437 error = EINVAL; 2438 break; 2439 } 2440 if (u.pinit->ep_index_max == 0) { 2441 error = EINVAL; 2442 break; 2443 } 2444 if (f->fs_xfer != NULL) { 2445 error = EBUSY; 2446 break; 2447 } 2448 if (f->dev_ep_index != 0) { 2449 error = EINVAL; 2450 break; 2451 } 2452 if (ugen_fifo_in_use(f, fflags)) { 2453 error = EBUSY; 2454 break; 2455 } 2456 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2457 if (error) { 2458 break; 2459 } 2460 f->fs_xfer = bsd_malloc(sizeof(f->fs_xfer[0]) * 2461 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2462 if (f->fs_xfer == NULL) { 2463 usb_fifo_free_buffer(f); 2464 error = ENOMEM; 2465 break; 2466 } 2467 f->fs_ep_max = u.pinit->ep_index_max; 2468 f->fs_ep_ptr = u.pinit->pEndpoints; 2469 break; 2470 } 2471 2472 case USB_FS_UNINIT: { 2473 struct usb_fs_uninit uninit; 2474 error = copyin((const void *)u.addr, &uninit, sizeof(struct usb_fs_uninit)); 2475 if (error != ENOERR) { 2476 break; 2477 } 2478 u.puninit = &uninit; 2479 if (u.puninit->dummy != 0) { 2480 error = EINVAL; 2481 break; 2482 } 2483 error = ugen_fs_uninit(f); 2484 break; 2485 } 2486 2487 default: 2488 mtx_lock(f->priv_mtx); 2489 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2490 mtx_unlock(f->priv_mtx); 2491 break; 2492 } 2493 DPRINTFN(6, "error=%d\n", error); 2494 return (error); 2495 } 2496 2497 static void 2498 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2499 { 2500 ; /* workaround for a bug in "indent" */ 2501 2502 DPRINTF("st=%u alen=%u aframes=%u\n", 2503 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2504 2505 switch (USB_GET_STATE(xfer)) { 2506 case USB_ST_SETUP: 2507 usbd_transfer_submit(xfer); 2508 break; 2509 default: 2510 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2511 break; 2512 } 2513 } 2514 #endif /* USB_HAVE_UGEN */ 2515