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