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 <dev/usb/usb_mfunc.h> 28 #include <dev/usb/usb.h> 29 #include <dev/usb/usb_ioctl.h> 30 #include <dev/usb/usb_error.h> 31 32 #define USB_DEBUG_VAR ugen_debug 33 34 #include <dev/usb/usb_core.h> 35 #include <dev/usb/usb_mbuf.h> 36 #include <dev/usb/usb_dev.h> 37 #include <dev/usb/usb_process.h> 38 #include <dev/usb/usb_device.h> 39 #include <dev/usb/usb_debug.h> 40 #include <dev/usb/usb_request.h> 41 #include <dev/usb/usb_busdma.h> 42 #include <dev/usb/usb_util.h> 43 #include <dev/usb/usb_hub.h> 44 #include <dev/usb/usb_generic.h> 45 #include <dev/usb/usb_transfer.h> 46 47 #include <dev/usb/usb_controller.h> 48 #include <dev/usb/usb_bus.h> 49 50 #if USB_HAVE_UGEN 51 52 /* defines */ 53 54 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 55 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 56 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 57 58 /* function prototypes */ 59 60 static usb2_callback_t ugen_read_clear_stall_callback; 61 static usb2_callback_t ugen_write_clear_stall_callback; 62 static usb2_callback_t ugen_default_read_callback; 63 static usb2_callback_t ugen_default_write_callback; 64 static usb2_callback_t ugen_isoc_read_callback; 65 static usb2_callback_t ugen_isoc_write_callback; 66 static usb2_callback_t ugen_default_fs_callback; 67 68 static usb2_fifo_open_t ugen_open; 69 static usb2_fifo_close_t ugen_close; 70 static usb2_fifo_ioctl_t ugen_ioctl; 71 static usb2_fifo_ioctl_t ugen_ioctl_post; 72 static usb2_fifo_cmd_t ugen_start_read; 73 static usb2_fifo_cmd_t ugen_start_write; 74 static usb2_fifo_cmd_t ugen_stop_io; 75 76 static int ugen_transfer_setup(struct usb2_fifo *, 77 const struct usb2_config *, uint8_t); 78 static int ugen_open_pipe_write(struct usb2_fifo *); 79 static int ugen_open_pipe_read(struct usb2_fifo *); 80 static int ugen_set_config(struct usb2_fifo *, uint8_t); 81 static int ugen_set_interface(struct usb2_fifo *, uint8_t, uint8_t); 82 static int ugen_get_cdesc(struct usb2_fifo *, struct usb2_gen_descriptor *); 83 static int ugen_get_sdesc(struct usb2_fifo *, struct usb2_gen_descriptor *); 84 static int ugen_get_iface_driver(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd); 85 static int usb2_gen_fill_deviceinfo(struct usb2_fifo *, 86 struct usb2_device_info *); 87 static int ugen_re_enumerate(struct usb2_fifo *); 88 static int ugen_iface_ioctl(struct usb2_fifo *, u_long, void *, int); 89 static uint8_t ugen_fs_get_complete(struct usb2_fifo *, uint8_t *); 90 static int ugen_fs_uninit(struct usb2_fifo *f); 91 92 /* structures */ 93 94 struct usb2_fifo_methods usb2_ugen_methods = { 95 .f_open = &ugen_open, 96 .f_close = &ugen_close, 97 .f_ioctl = &ugen_ioctl, 98 .f_ioctl_post = &ugen_ioctl_post, 99 .f_start_read = &ugen_start_read, 100 .f_stop_read = &ugen_stop_io, 101 .f_start_write = &ugen_start_write, 102 .f_stop_write = &ugen_stop_io, 103 }; 104 105 #if USB_DEBUG 106 static int ugen_debug = 0; 107 108 SYSCTL_NODE(_hw_usb2, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 109 SYSCTL_INT(_hw_usb2_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 110 0, "Debug level"); 111 #endif 112 113 114 /* prototypes */ 115 116 static int 117 ugen_transfer_setup(struct usb2_fifo *f, 118 const struct usb2_config *setup, uint8_t n_setup) 119 { 120 struct usb2_pipe *pipe = f->priv_sc0; 121 struct usb2_device *udev = f->udev; 122 uint8_t iface_index = pipe->iface_index; 123 int error; 124 125 mtx_unlock(f->priv_mtx); 126 127 /* 128 * "usb2_transfer_setup()" can sleep so one needs to make a wrapper, 129 * exiting the mutex and checking things 130 */ 131 error = usb2_transfer_setup(udev, &iface_index, f->xfer, 132 setup, n_setup, f, f->priv_mtx); 133 if (error == 0) { 134 135 if (f->xfer[0]->nframes == 1) { 136 error = usb2_fifo_alloc_buffer(f, 137 f->xfer[0]->max_data_length, 2); 138 } else { 139 error = usb2_fifo_alloc_buffer(f, 140 f->xfer[0]->max_frame_size, 141 2 * f->xfer[0]->nframes); 142 } 143 if (error) { 144 usb2_transfer_unsetup(f->xfer, n_setup); 145 } 146 } 147 mtx_lock(f->priv_mtx); 148 149 return (error); 150 } 151 152 static int 153 ugen_open(struct usb2_fifo *f, int fflags) 154 { 155 struct usb2_pipe *pipe = f->priv_sc0; 156 struct usb2_endpoint_descriptor *ed = pipe->edesc; 157 uint8_t type; 158 159 DPRINTFN(6, "flag=0x%x\n", fflags); 160 161 mtx_lock(f->priv_mtx); 162 switch (usb2_get_speed(f->udev)) { 163 case USB_SPEED_LOW: 164 case USB_SPEED_FULL: 165 f->nframes = UGEN_HW_FRAMES; 166 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 167 break; 168 default: 169 f->nframes = UGEN_HW_FRAMES * 8; 170 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 171 break; 172 } 173 174 type = ed->bmAttributes & UE_XFERTYPE; 175 if (type == UE_INTERRUPT) { 176 f->bufsize = 0; /* use "wMaxPacketSize" */ 177 } 178 f->timeout = USB_NO_TIMEOUT; 179 f->flag_short = 0; 180 f->fifo_zlp = 0; 181 mtx_unlock(f->priv_mtx); 182 183 return (0); 184 } 185 186 static void 187 ugen_close(struct usb2_fifo *f, int fflags) 188 { 189 DPRINTFN(6, "flag=0x%x\n", fflags); 190 191 /* cleanup */ 192 193 mtx_lock(f->priv_mtx); 194 usb2_transfer_stop(f->xfer[0]); 195 usb2_transfer_stop(f->xfer[1]); 196 mtx_unlock(f->priv_mtx); 197 198 usb2_transfer_unsetup(f->xfer, 2); 199 usb2_fifo_free_buffer(f); 200 201 if (ugen_fs_uninit(f)) { 202 /* ignore any errors - we are closing */ 203 DPRINTFN(6, "no FIFOs\n"); 204 } 205 } 206 207 static int 208 ugen_open_pipe_write(struct usb2_fifo *f) 209 { 210 struct usb2_config usb2_config[2]; 211 struct usb2_pipe *pipe = f->priv_sc0; 212 struct usb2_endpoint_descriptor *ed = pipe->edesc; 213 214 mtx_assert(f->priv_mtx, MA_OWNED); 215 216 if (f->xfer[0] || f->xfer[1]) { 217 /* transfers are already opened */ 218 return (0); 219 } 220 bzero(usb2_config, sizeof(usb2_config)); 221 222 usb2_config[1].type = UE_CONTROL; 223 usb2_config[1].endpoint = 0; 224 usb2_config[1].direction = UE_DIR_ANY; 225 usb2_config[1].mh.timeout = 1000; /* 1 second */ 226 usb2_config[1].mh.interval = 50;/* 50 milliseconds */ 227 usb2_config[1].mh.bufsize = sizeof(struct usb2_device_request); 228 usb2_config[1].mh.callback = &ugen_write_clear_stall_callback; 229 230 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 231 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 232 usb2_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 233 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 234 usb2_config[0].mh.flags.proxy_buffer = 1; 235 236 switch (ed->bmAttributes & UE_XFERTYPE) { 237 case UE_INTERRUPT: 238 case UE_BULK: 239 if (f->flag_short) { 240 usb2_config[0].mh.flags.force_short_xfer = 1; 241 } 242 usb2_config[0].mh.callback = &ugen_default_write_callback; 243 usb2_config[0].mh.timeout = f->timeout; 244 usb2_config[0].mh.frames = 1; 245 usb2_config[0].mh.bufsize = f->bufsize; 246 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 247 if (ugen_transfer_setup(f, usb2_config, 2)) { 248 return (EIO); 249 } 250 /* first transfer does not clear stall */ 251 f->flag_stall = 0; 252 break; 253 254 case UE_ISOCHRONOUS: 255 usb2_config[0].mh.flags.short_xfer_ok = 1; 256 usb2_config[0].mh.bufsize = 0; /* use default */ 257 usb2_config[0].mh.frames = f->nframes; 258 usb2_config[0].mh.callback = &ugen_isoc_write_callback; 259 usb2_config[0].mh.timeout = 0; 260 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 261 262 /* clone configuration */ 263 usb2_config[1] = usb2_config[0]; 264 265 if (ugen_transfer_setup(f, usb2_config, 2)) { 266 return (EIO); 267 } 268 break; 269 default: 270 return (EINVAL); 271 } 272 return (0); 273 } 274 275 static int 276 ugen_open_pipe_read(struct usb2_fifo *f) 277 { 278 struct usb2_config usb2_config[2]; 279 struct usb2_pipe *pipe = f->priv_sc0; 280 struct usb2_endpoint_descriptor *ed = pipe->edesc; 281 282 mtx_assert(f->priv_mtx, MA_OWNED); 283 284 if (f->xfer[0] || f->xfer[1]) { 285 /* transfers are already opened */ 286 return (0); 287 } 288 bzero(usb2_config, sizeof(usb2_config)); 289 290 usb2_config[1].type = UE_CONTROL; 291 usb2_config[1].endpoint = 0; 292 usb2_config[1].direction = UE_DIR_ANY; 293 usb2_config[1].mh.timeout = 1000; /* 1 second */ 294 usb2_config[1].mh.interval = 50;/* 50 milliseconds */ 295 usb2_config[1].mh.bufsize = sizeof(struct usb2_device_request); 296 usb2_config[1].mh.callback = &ugen_read_clear_stall_callback; 297 298 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 299 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 300 usb2_config[0].direction = UE_DIR_IN; 301 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 302 usb2_config[0].mh.flags.proxy_buffer = 1; 303 304 switch (ed->bmAttributes & UE_XFERTYPE) { 305 case UE_INTERRUPT: 306 case UE_BULK: 307 if (f->flag_short) { 308 usb2_config[0].mh.flags.short_xfer_ok = 1; 309 } 310 usb2_config[0].mh.timeout = f->timeout; 311 usb2_config[0].mh.frames = 1; 312 usb2_config[0].mh.callback = &ugen_default_read_callback; 313 usb2_config[0].mh.bufsize = f->bufsize; 314 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 315 316 if (ugen_transfer_setup(f, usb2_config, 2)) { 317 return (EIO); 318 } 319 /* first transfer does not clear stall */ 320 f->flag_stall = 0; 321 break; 322 323 case UE_ISOCHRONOUS: 324 usb2_config[0].mh.flags.short_xfer_ok = 1; 325 usb2_config[0].mh.bufsize = 0; /* use default */ 326 usb2_config[0].mh.frames = f->nframes; 327 usb2_config[0].mh.callback = &ugen_isoc_read_callback; 328 usb2_config[0].mh.timeout = 0; 329 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 330 331 /* clone configuration */ 332 usb2_config[1] = usb2_config[0]; 333 334 if (ugen_transfer_setup(f, usb2_config, 2)) { 335 return (EIO); 336 } 337 break; 338 339 default: 340 return (EINVAL); 341 } 342 return (0); 343 } 344 345 static void 346 ugen_start_read(struct usb2_fifo *f) 347 { 348 /* check that pipes are open */ 349 if (ugen_open_pipe_read(f)) { 350 /* signal error */ 351 usb2_fifo_put_data_error(f); 352 } 353 /* start transfers */ 354 usb2_transfer_start(f->xfer[0]); 355 usb2_transfer_start(f->xfer[1]); 356 } 357 358 static void 359 ugen_start_write(struct usb2_fifo *f) 360 { 361 /* check that pipes are open */ 362 if (ugen_open_pipe_write(f)) { 363 /* signal error */ 364 usb2_fifo_get_data_error(f); 365 } 366 /* start transfers */ 367 usb2_transfer_start(f->xfer[0]); 368 usb2_transfer_start(f->xfer[1]); 369 } 370 371 static void 372 ugen_stop_io(struct usb2_fifo *f) 373 { 374 /* stop transfers */ 375 usb2_transfer_stop(f->xfer[0]); 376 usb2_transfer_stop(f->xfer[1]); 377 } 378 379 static void 380 ugen_default_read_callback(struct usb2_xfer *xfer) 381 { 382 struct usb2_fifo *f = xfer->priv_sc; 383 struct usb2_mbuf *m; 384 385 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 386 387 switch (USB_GET_STATE(xfer)) { 388 case USB_ST_TRANSFERRED: 389 if (xfer->actlen == 0) { 390 if (f->fifo_zlp != 4) { 391 f->fifo_zlp++; 392 } else { 393 /* 394 * Throttle a little bit we have multiple ZLPs 395 * in a row! 396 */ 397 xfer->interval = 64; /* ms */ 398 } 399 } else { 400 /* clear throttle */ 401 xfer->interval = 0; 402 f->fifo_zlp = 0; 403 } 404 usb2_fifo_put_data(f, xfer->frbuffers, 0, 405 xfer->actlen, 1); 406 407 case USB_ST_SETUP: 408 if (f->flag_stall) { 409 usb2_transfer_start(f->xfer[1]); 410 break; 411 } 412 USB_IF_POLL(&f->free_q, m); 413 if (m) { 414 xfer->frlengths[0] = xfer->max_data_length; 415 usb2_start_hardware(xfer); 416 } 417 break; 418 419 default: /* Error */ 420 if (xfer->error != USB_ERR_CANCELLED) { 421 /* send a zero length packet to userland */ 422 usb2_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 423 f->flag_stall = 1; 424 f->fifo_zlp = 0; 425 usb2_transfer_start(f->xfer[1]); 426 } 427 break; 428 } 429 } 430 431 static void 432 ugen_default_write_callback(struct usb2_xfer *xfer) 433 { 434 struct usb2_fifo *f = xfer->priv_sc; 435 usb2_frlength_t actlen; 436 437 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 438 439 switch (USB_GET_STATE(xfer)) { 440 case USB_ST_SETUP: 441 case USB_ST_TRANSFERRED: 442 /* 443 * If writing is in stall, just jump to clear stall 444 * callback and solve the situation. 445 */ 446 if (f->flag_stall) { 447 usb2_transfer_start(f->xfer[1]); 448 break; 449 } 450 /* 451 * Write data, setup and perform hardware transfer. 452 */ 453 if (usb2_fifo_get_data(f, xfer->frbuffers, 0, 454 xfer->max_data_length, &actlen, 0)) { 455 xfer->frlengths[0] = actlen; 456 usb2_start_hardware(xfer); 457 } 458 break; 459 460 default: /* Error */ 461 if (xfer->error != USB_ERR_CANCELLED) { 462 f->flag_stall = 1; 463 usb2_transfer_start(f->xfer[1]); 464 } 465 break; 466 } 467 } 468 469 static void 470 ugen_read_clear_stall_callback(struct usb2_xfer *xfer) 471 { 472 struct usb2_fifo *f = xfer->priv_sc; 473 struct usb2_xfer *xfer_other = f->xfer[0]; 474 475 if (f->flag_stall == 0) { 476 /* nothing to do */ 477 return; 478 } 479 if (usb2_clear_stall_callback(xfer, xfer_other)) { 480 DPRINTFN(5, "f=%p: stall cleared\n", f); 481 f->flag_stall = 0; 482 usb2_transfer_start(xfer_other); 483 } 484 } 485 486 static void 487 ugen_write_clear_stall_callback(struct usb2_xfer *xfer) 488 { 489 struct usb2_fifo *f = xfer->priv_sc; 490 struct usb2_xfer *xfer_other = f->xfer[0]; 491 492 if (f->flag_stall == 0) { 493 /* nothing to do */ 494 return; 495 } 496 if (usb2_clear_stall_callback(xfer, xfer_other)) { 497 DPRINTFN(5, "f=%p: stall cleared\n", f); 498 f->flag_stall = 0; 499 usb2_transfer_start(xfer_other); 500 } 501 } 502 503 static void 504 ugen_isoc_read_callback(struct usb2_xfer *xfer) 505 { 506 struct usb2_fifo *f = xfer->priv_sc; 507 usb2_frlength_t offset; 508 usb2_frcount_t n; 509 510 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 511 512 switch (USB_GET_STATE(xfer)) { 513 case USB_ST_TRANSFERRED: 514 515 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 516 517 offset = 0; 518 519 for (n = 0; n != xfer->aframes; n++) { 520 usb2_fifo_put_data(f, xfer->frbuffers, offset, 521 xfer->frlengths[n], 1); 522 offset += xfer->max_frame_size; 523 } 524 525 case USB_ST_SETUP: 526 tr_setup: 527 for (n = 0; n != xfer->nframes; n++) { 528 /* setup size for next transfer */ 529 xfer->frlengths[n] = xfer->max_frame_size; 530 } 531 usb2_start_hardware(xfer); 532 break; 533 534 default: /* Error */ 535 if (xfer->error == USB_ERR_CANCELLED) { 536 break; 537 } 538 goto tr_setup; 539 } 540 } 541 542 static void 543 ugen_isoc_write_callback(struct usb2_xfer *xfer) 544 { 545 struct usb2_fifo *f = xfer->priv_sc; 546 usb2_frlength_t actlen; 547 usb2_frlength_t offset; 548 usb2_frcount_t n; 549 550 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 551 552 switch (USB_GET_STATE(xfer)) { 553 case USB_ST_TRANSFERRED: 554 case USB_ST_SETUP: 555 tr_setup: 556 offset = 0; 557 for (n = 0; n != xfer->nframes; n++) { 558 if (usb2_fifo_get_data(f, xfer->frbuffers, offset, 559 xfer->max_frame_size, &actlen, 1)) { 560 xfer->frlengths[n] = actlen; 561 offset += actlen; 562 } else { 563 break; 564 } 565 } 566 567 for (; n != xfer->nframes; n++) { 568 /* fill in zero frames */ 569 xfer->frlengths[n] = 0; 570 } 571 usb2_start_hardware(xfer); 572 break; 573 574 default: /* Error */ 575 if (xfer->error == USB_ERR_CANCELLED) { 576 break; 577 } 578 goto tr_setup; 579 } 580 } 581 582 static int 583 ugen_set_config(struct usb2_fifo *f, uint8_t index) 584 { 585 DPRINTFN(2, "index %u\n", index); 586 587 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 588 /* not possible in device side mode */ 589 return (ENOTTY); 590 } 591 if (f->udev->curr_config_index == index) { 592 /* no change needed */ 593 return (0); 594 } 595 /* make sure all FIFO's are gone */ 596 /* else there can be a deadlock */ 597 if (ugen_fs_uninit(f)) { 598 /* ignore any errors */ 599 DPRINTFN(6, "no FIFOs\n"); 600 } 601 /* change setting - will free generic FIFOs, if any */ 602 if (usb2_set_config_index(f->udev, index)) { 603 return (EIO); 604 } 605 /* probe and attach */ 606 if (usb2_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) { 607 return (EIO); 608 } 609 return (0); 610 } 611 612 static int 613 ugen_set_interface(struct usb2_fifo *f, 614 uint8_t iface_index, uint8_t alt_index) 615 { 616 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 617 618 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 619 /* not possible in device side mode */ 620 return (ENOTTY); 621 } 622 /* make sure all FIFO's are gone */ 623 /* else there can be a deadlock */ 624 if (ugen_fs_uninit(f)) { 625 /* ignore any errors */ 626 DPRINTFN(6, "no FIFOs\n"); 627 } 628 /* change setting - will free generic FIFOs, if any */ 629 if (usb2_set_alt_interface_index(f->udev, iface_index, alt_index)) { 630 return (EIO); 631 } 632 /* probe and attach */ 633 if (usb2_probe_and_attach(f->udev, iface_index)) { 634 return (EIO); 635 } 636 return (0); 637 } 638 639 /*------------------------------------------------------------------------* 640 * ugen_get_cdesc 641 * 642 * This function will retrieve the complete configuration descriptor 643 * at the given index. 644 *------------------------------------------------------------------------*/ 645 static int 646 ugen_get_cdesc(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 647 { 648 struct usb2_config_descriptor *cdesc; 649 struct usb2_device *udev = f->udev; 650 int error; 651 uint16_t len; 652 uint8_t free_data; 653 654 DPRINTFN(6, "\n"); 655 656 if (ugd->ugd_data == NULL) { 657 /* userland pointer should not be zero */ 658 return (EINVAL); 659 } 660 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 661 (ugd->ugd_config_index == udev->curr_config_index)) { 662 cdesc = usb2_get_config_descriptor(udev); 663 if (cdesc == NULL) { 664 return (ENXIO); 665 } 666 free_data = 0; 667 668 } else { 669 if (usb2_req_get_config_desc_full(udev, 670 NULL, &cdesc, M_USBDEV, 671 ugd->ugd_config_index)) { 672 return (ENXIO); 673 } 674 free_data = 1; 675 } 676 677 len = UGETW(cdesc->wTotalLength); 678 if (len > ugd->ugd_maxlen) { 679 len = ugd->ugd_maxlen; 680 } 681 DPRINTFN(6, "len=%u\n", len); 682 683 ugd->ugd_actlen = len; 684 ugd->ugd_offset = 0; 685 686 error = copyout(cdesc, ugd->ugd_data, len); 687 688 if (free_data) { 689 free(cdesc, M_USBDEV); 690 } 691 return (error); 692 } 693 694 static int 695 ugen_get_sdesc(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 696 { 697 void *ptr = f->udev->bus->scratch[0].data; 698 uint16_t size = sizeof(f->udev->bus->scratch[0].data); 699 int error; 700 701 if (usb2_req_get_string_desc(f->udev, NULL, ptr, 702 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 703 error = EINVAL; 704 } else { 705 706 if (size > ((uint8_t *)ptr)[0]) { 707 size = ((uint8_t *)ptr)[0]; 708 } 709 if (size > ugd->ugd_maxlen) { 710 size = ugd->ugd_maxlen; 711 } 712 ugd->ugd_actlen = size; 713 ugd->ugd_offset = 0; 714 715 error = copyout(ptr, ugd->ugd_data, size); 716 } 717 return (error); 718 } 719 720 /*------------------------------------------------------------------------* 721 * ugen_get_iface_driver 722 * 723 * This function generates an USB interface description for userland. 724 * 725 * Returns: 726 * 0: Success 727 * Else: Failure 728 *------------------------------------------------------------------------*/ 729 static int 730 ugen_get_iface_driver(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 731 { 732 struct usb2_device *udev = f->udev; 733 struct usb2_interface *iface; 734 const char *ptr; 735 const char *desc; 736 unsigned int len; 737 unsigned int maxlen; 738 char buf[128]; 739 int error; 740 741 DPRINTFN(6, "\n"); 742 743 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 744 /* userland pointer should not be zero */ 745 return (EINVAL); 746 } 747 748 iface = usb2_get_iface(udev, ugd->ugd_iface_index); 749 if ((iface == NULL) || (iface->idesc == NULL)) { 750 /* invalid interface index */ 751 return (EINVAL); 752 } 753 754 /* read out device nameunit string, if any */ 755 if ((iface->subdev != NULL) && 756 device_is_attached(iface->subdev) && 757 (ptr = device_get_nameunit(iface->subdev)) && 758 (desc = device_get_desc(iface->subdev))) { 759 760 /* print description */ 761 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 762 763 /* range checks */ 764 maxlen = ugd->ugd_maxlen - 1; 765 len = strlen(buf); 766 if (len > maxlen) 767 len = maxlen; 768 769 /* update actual length, including terminating zero */ 770 ugd->ugd_actlen = len + 1; 771 772 /* copy out interface description */ 773 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 774 } else { 775 /* zero length string is default */ 776 error = copyout("", ugd->ugd_data, 1); 777 } 778 return (error); 779 } 780 781 /*------------------------------------------------------------------------* 782 * usb2_gen_fill_deviceinfo 783 * 784 * This function dumps information about an USB device to the 785 * structure pointed to by the "di" argument. 786 * 787 * Returns: 788 * 0: Success 789 * Else: Failure 790 *------------------------------------------------------------------------*/ 791 static int 792 usb2_gen_fill_deviceinfo(struct usb2_fifo *f, struct usb2_device_info *di) 793 { 794 struct usb2_device *udev; 795 struct usb2_device *hub; 796 797 udev = f->udev; 798 799 bzero(di, sizeof(di[0])); 800 801 di->udi_bus = device_get_unit(udev->bus->bdev); 802 di->udi_addr = udev->address; 803 di->udi_index = udev->device_index; 804 #if USB_HAVE_STRINGS 805 strlcpy(di->udi_serial, udev->serial, 806 sizeof(di->udi_serial)); 807 strlcpy(di->udi_vendor, udev->manufacturer, 808 sizeof(di->udi_vendor)); 809 strlcpy(di->udi_product, udev->product, 810 sizeof(di->udi_product)); 811 #endif 812 usb2_printBCD(di->udi_release, sizeof(di->udi_release), 813 UGETW(udev->ddesc.bcdDevice)); 814 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 815 di->udi_productNo = UGETW(udev->ddesc.idProduct); 816 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 817 di->udi_class = udev->ddesc.bDeviceClass; 818 di->udi_subclass = udev->ddesc.bDeviceSubClass; 819 di->udi_protocol = udev->ddesc.bDeviceProtocol; 820 di->udi_config_no = udev->curr_config_no; 821 di->udi_config_index = udev->curr_config_index; 822 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 823 di->udi_speed = udev->speed; 824 di->udi_mode = udev->flags.usb2_mode; 825 di->udi_power_mode = udev->power_mode; 826 if (udev->flags.suspended) { 827 di->udi_suspended = 1; 828 } else { 829 di->udi_suspended = 0; 830 } 831 832 hub = udev->parent_hub; 833 if (hub) { 834 di->udi_hubaddr = hub->address; 835 di->udi_hubindex = hub->device_index; 836 di->udi_hubport = udev->port_no; 837 } 838 return (0); 839 } 840 841 /*------------------------------------------------------------------------* 842 * ugen_check_request 843 * 844 * Return values: 845 * 0: Access allowed 846 * Else: No access 847 *------------------------------------------------------------------------*/ 848 static int 849 ugen_check_request(struct usb2_device *udev, struct usb2_device_request *req) 850 { 851 struct usb2_pipe *pipe; 852 int error; 853 854 /* 855 * Avoid requests that would damage the bus integrity: 856 */ 857 if (((req->bmRequestType == UT_WRITE_DEVICE) && 858 (req->bRequest == UR_SET_ADDRESS)) || 859 ((req->bmRequestType == UT_WRITE_DEVICE) && 860 (req->bRequest == UR_SET_CONFIG)) || 861 ((req->bmRequestType == UT_WRITE_INTERFACE) && 862 (req->bRequest == UR_SET_INTERFACE))) { 863 /* 864 * These requests can be useful for testing USB drivers. 865 */ 866 error = priv_check(curthread, PRIV_DRIVER); 867 if (error) { 868 return (error); 869 } 870 } 871 /* 872 * Special case - handle clearing of stall 873 */ 874 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 875 876 pipe = usb2_get_pipe_by_addr(udev, req->wIndex[0]); 877 if (pipe == NULL) { 878 return (EINVAL); 879 } 880 if ((req->bRequest == UR_CLEAR_FEATURE) && 881 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 882 usb2_clear_data_toggle(udev, pipe); 883 } 884 } 885 /* TODO: add more checks to verify the interface index */ 886 887 return (0); 888 } 889 890 int 891 ugen_do_request(struct usb2_fifo *f, struct usb2_ctl_request *ur) 892 { 893 int error; 894 uint16_t len; 895 uint16_t actlen; 896 897 if (ugen_check_request(f->udev, &ur->ucr_request)) { 898 return (EPERM); 899 } 900 len = UGETW(ur->ucr_request.wLength); 901 902 /* check if "ucr_data" is valid */ 903 if (len != 0) { 904 if (ur->ucr_data == NULL) { 905 return (EFAULT); 906 } 907 } 908 /* do the USB request */ 909 error = usb2_do_request_flags 910 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 911 (ur->ucr_flags & USB_SHORT_XFER_OK) | 912 USB_USER_DATA_PTR, &actlen, 913 USB_DEFAULT_TIMEOUT); 914 915 ur->ucr_actlen = actlen; 916 917 if (error) { 918 error = EIO; 919 } 920 return (error); 921 } 922 923 /*------------------------------------------------------------------------ 924 * ugen_re_enumerate 925 *------------------------------------------------------------------------*/ 926 static int 927 ugen_re_enumerate(struct usb2_fifo *f) 928 { 929 struct usb2_device *udev = f->udev; 930 int error; 931 932 /* 933 * This request can be useful for testing USB drivers: 934 */ 935 error = priv_check(curthread, PRIV_DRIVER); 936 if (error) { 937 return (error); 938 } 939 /* get the device unconfigured */ 940 error = ugen_set_config(f, USB_UNCONFIG_INDEX); 941 if (error) { 942 return (error); 943 } 944 /* do a bus-reset */ 945 mtx_lock(f->priv_mtx); 946 error = usb2_req_re_enumerate(udev, f->priv_mtx); 947 mtx_unlock(f->priv_mtx); 948 949 if (error) { 950 return (ENXIO); 951 } 952 /* restore configuration to index 0 */ 953 error = ugen_set_config(f, 0); 954 if (error) { 955 return (error); 956 } 957 return (0); 958 } 959 960 int 961 ugen_fs_uninit(struct usb2_fifo *f) 962 { 963 if (f->fs_xfer == NULL) { 964 return (EINVAL); 965 } 966 usb2_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 967 free(f->fs_xfer, M_USB); 968 f->fs_xfer = NULL; 969 f->fs_ep_max = 0; 970 f->fs_ep_ptr = NULL; 971 f->flag_iscomplete = 0; 972 usb2_fifo_free_buffer(f); 973 return (0); 974 } 975 976 static uint8_t 977 ugen_fs_get_complete(struct usb2_fifo *f, uint8_t *pindex) 978 { 979 struct usb2_mbuf *m; 980 981 USB_IF_DEQUEUE(&f->used_q, m); 982 983 if (m) { 984 *pindex = *((uint8_t *)(m->cur_data_ptr)); 985 986 USB_IF_ENQUEUE(&f->free_q, m); 987 988 return (0); /* success */ 989 } else { 990 991 *pindex = 0; /* fix compiler warning */ 992 993 f->flag_iscomplete = 0; 994 } 995 return (1); /* failure */ 996 } 997 998 static void 999 ugen_fs_set_complete(struct usb2_fifo *f, uint8_t index) 1000 { 1001 struct usb2_mbuf *m; 1002 1003 USB_IF_DEQUEUE(&f->free_q, m); 1004 1005 if (m == NULL) { 1006 /* can happen during close */ 1007 DPRINTF("out of buffers\n"); 1008 return; 1009 } 1010 USB_MBUF_RESET(m); 1011 1012 *((uint8_t *)(m->cur_data_ptr)) = index; 1013 1014 USB_IF_ENQUEUE(&f->used_q, m); 1015 1016 f->flag_iscomplete = 1; 1017 1018 usb2_fifo_wakeup(f); 1019 } 1020 1021 static int 1022 ugen_fs_copy_in(struct usb2_fifo *f, uint8_t ep_index) 1023 { 1024 struct usb2_device_request *req; 1025 struct usb2_xfer *xfer; 1026 struct usb2_fs_endpoint fs_ep; 1027 void *uaddr; /* userland pointer */ 1028 void *kaddr; 1029 usb2_frlength_t offset; 1030 usb2_frlength_t rem; 1031 usb2_frcount_t n; 1032 uint32_t length; 1033 int error; 1034 uint8_t isread; 1035 1036 if (ep_index >= f->fs_ep_max) { 1037 return (EINVAL); 1038 } 1039 xfer = f->fs_xfer[ep_index]; 1040 if (xfer == NULL) { 1041 return (EINVAL); 1042 } 1043 mtx_lock(f->priv_mtx); 1044 if (usb2_transfer_pending(xfer)) { 1045 mtx_unlock(f->priv_mtx); 1046 return (EBUSY); /* should not happen */ 1047 } 1048 mtx_unlock(f->priv_mtx); 1049 1050 error = copyin(f->fs_ep_ptr + 1051 ep_index, &fs_ep, sizeof(fs_ep)); 1052 if (error) { 1053 return (error); 1054 } 1055 /* security checks */ 1056 1057 if (fs_ep.nFrames > xfer->max_frame_count) { 1058 xfer->error = USB_ERR_INVAL; 1059 goto complete; 1060 } 1061 if (fs_ep.nFrames == 0) { 1062 xfer->error = USB_ERR_INVAL; 1063 goto complete; 1064 } 1065 error = copyin(fs_ep.ppBuffer, 1066 &uaddr, sizeof(uaddr)); 1067 if (error) { 1068 return (error); 1069 } 1070 /* reset first frame */ 1071 usb2_set_frame_offset(xfer, 0, 0); 1072 1073 if (xfer->flags_int.control_xfr) { 1074 1075 req = xfer->frbuffers[0].buffer; 1076 1077 error = copyin(fs_ep.pLength, 1078 &length, sizeof(length)); 1079 if (error) { 1080 return (error); 1081 } 1082 if (length >= sizeof(*req)) { 1083 xfer->error = USB_ERR_INVAL; 1084 goto complete; 1085 } 1086 if (length != 0) { 1087 error = copyin(uaddr, req, length); 1088 if (error) { 1089 return (error); 1090 } 1091 } 1092 if (ugen_check_request(f->udev, req)) { 1093 xfer->error = USB_ERR_INVAL; 1094 goto complete; 1095 } 1096 xfer->frlengths[0] = length; 1097 1098 /* Host mode only ! */ 1099 if ((req->bmRequestType & 1100 (UT_READ | UT_WRITE)) == UT_READ) { 1101 isread = 1; 1102 } else { 1103 isread = 0; 1104 } 1105 n = 1; 1106 offset = sizeof(*req); 1107 1108 } else { 1109 /* Device and Host mode */ 1110 if (USB_GET_DATA_ISREAD(xfer)) { 1111 isread = 1; 1112 } else { 1113 isread = 0; 1114 } 1115 n = 0; 1116 offset = 0; 1117 } 1118 1119 rem = xfer->max_data_length; 1120 xfer->nframes = fs_ep.nFrames; 1121 xfer->timeout = fs_ep.timeout; 1122 if (xfer->timeout > 65535) { 1123 xfer->timeout = 65535; 1124 } 1125 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1126 xfer->flags.short_xfer_ok = 1; 1127 else 1128 xfer->flags.short_xfer_ok = 0; 1129 1130 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1131 xfer->flags.short_frames_ok = 1; 1132 else 1133 xfer->flags.short_frames_ok = 0; 1134 1135 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1136 xfer->flags.force_short_xfer = 1; 1137 else 1138 xfer->flags.force_short_xfer = 0; 1139 1140 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1141 xfer->flags.stall_pipe = 1; 1142 else 1143 xfer->flags.stall_pipe = 0; 1144 1145 for (; n != xfer->nframes; n++) { 1146 1147 error = copyin(fs_ep.pLength + n, 1148 &length, sizeof(length)); 1149 if (error) { 1150 break; 1151 } 1152 xfer->frlengths[n] = length; 1153 1154 if (length > rem) { 1155 xfer->error = USB_ERR_INVAL; 1156 goto complete; 1157 } 1158 rem -= length; 1159 1160 if (!isread) { 1161 1162 /* we need to know the source buffer */ 1163 error = copyin(fs_ep.ppBuffer + n, 1164 &uaddr, sizeof(uaddr)); 1165 if (error) { 1166 break; 1167 } 1168 if (xfer->flags_int.isochronous_xfr) { 1169 /* get kernel buffer address */ 1170 kaddr = xfer->frbuffers[0].buffer; 1171 kaddr = USB_ADD_BYTES(kaddr, offset); 1172 } else { 1173 /* set current frame offset */ 1174 usb2_set_frame_offset(xfer, offset, n); 1175 1176 /* get kernel buffer address */ 1177 kaddr = xfer->frbuffers[n].buffer; 1178 } 1179 1180 /* move data */ 1181 error = copyin(uaddr, kaddr, length); 1182 if (error) { 1183 break; 1184 } 1185 } 1186 offset += length; 1187 } 1188 return (error); 1189 1190 complete: 1191 mtx_lock(f->priv_mtx); 1192 ugen_fs_set_complete(f, ep_index); 1193 mtx_unlock(f->priv_mtx); 1194 return (0); 1195 } 1196 1197 static int 1198 ugen_fs_copy_out(struct usb2_fifo *f, uint8_t ep_index) 1199 { 1200 struct usb2_device_request *req; 1201 struct usb2_xfer *xfer; 1202 struct usb2_fs_endpoint fs_ep; 1203 struct usb2_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1204 void *uaddr; /* userland ptr */ 1205 void *kaddr; 1206 usb2_frlength_t offset; 1207 usb2_frlength_t rem; 1208 usb2_frcount_t n; 1209 uint32_t length; 1210 uint32_t temp; 1211 int error; 1212 uint8_t isread; 1213 1214 if (ep_index >= f->fs_ep_max) 1215 return (EINVAL); 1216 1217 xfer = f->fs_xfer[ep_index]; 1218 if (xfer == NULL) 1219 return (EINVAL); 1220 1221 mtx_lock(f->priv_mtx); 1222 if (usb2_transfer_pending(xfer)) { 1223 mtx_unlock(f->priv_mtx); 1224 return (EBUSY); /* should not happen */ 1225 } 1226 mtx_unlock(f->priv_mtx); 1227 1228 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1229 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1230 if (error) { 1231 return (error); 1232 } 1233 fs_ep.status = xfer->error; 1234 fs_ep.aFrames = xfer->aframes; 1235 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1236 if (xfer->error) { 1237 goto complete; 1238 } 1239 if (xfer->flags_int.control_xfr) { 1240 req = xfer->frbuffers[0].buffer; 1241 1242 /* Host mode only ! */ 1243 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1244 isread = 1; 1245 } else { 1246 isread = 0; 1247 } 1248 if (xfer->nframes == 0) 1249 n = 0; /* should never happen */ 1250 else 1251 n = 1; 1252 } else { 1253 /* Device and Host mode */ 1254 if (USB_GET_DATA_ISREAD(xfer)) { 1255 isread = 1; 1256 } else { 1257 isread = 0; 1258 } 1259 n = 0; 1260 } 1261 1262 /* Update lengths and copy out data */ 1263 1264 rem = xfer->max_data_length; 1265 offset = 0; 1266 1267 for (; n != xfer->nframes; n++) { 1268 1269 /* get initial length into "temp" */ 1270 error = copyin(fs_ep.pLength + n, 1271 &temp, sizeof(temp)); 1272 if (error) { 1273 return (error); 1274 } 1275 if (temp > rem) { 1276 /* the userland length has been corrupted */ 1277 DPRINTF("corrupt userland length " 1278 "%u > %u\n", temp, rem); 1279 fs_ep.status = USB_ERR_INVAL; 1280 goto complete; 1281 } 1282 rem -= temp; 1283 1284 /* get actual transfer length */ 1285 length = xfer->frlengths[n]; 1286 if (length > temp) { 1287 /* data overflow */ 1288 fs_ep.status = USB_ERR_INVAL; 1289 DPRINTF("data overflow %u > %u\n", 1290 length, temp); 1291 goto complete; 1292 } 1293 if (isread) { 1294 1295 /* we need to know the destination buffer */ 1296 error = copyin(fs_ep.ppBuffer + n, 1297 &uaddr, sizeof(uaddr)); 1298 if (error) { 1299 return (error); 1300 } 1301 if (xfer->flags_int.isochronous_xfr) { 1302 /* only one frame buffer */ 1303 kaddr = USB_ADD_BYTES( 1304 xfer->frbuffers[0].buffer, offset); 1305 } else { 1306 /* multiple frame buffers */ 1307 kaddr = xfer->frbuffers[n].buffer; 1308 } 1309 1310 /* move data */ 1311 error = copyout(kaddr, uaddr, length); 1312 if (error) { 1313 return (error); 1314 } 1315 } 1316 /* 1317 * Update offset according to initial length, which is 1318 * needed by isochronous transfers! 1319 */ 1320 offset += temp; 1321 1322 /* update length */ 1323 error = copyout(&length, 1324 fs_ep.pLength + n, sizeof(length)); 1325 if (error) { 1326 return (error); 1327 } 1328 } 1329 1330 complete: 1331 /* update "aFrames" */ 1332 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1333 sizeof(fs_ep.aFrames)); 1334 if (error) 1335 goto done; 1336 1337 /* update "isoc_time_complete" */ 1338 error = copyout(&fs_ep.isoc_time_complete, 1339 &fs_ep_uptr->isoc_time_complete, 1340 sizeof(fs_ep.isoc_time_complete)); 1341 if (error) 1342 goto done; 1343 /* update "status" */ 1344 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1345 sizeof(fs_ep.status)); 1346 done: 1347 return (error); 1348 } 1349 1350 static uint8_t 1351 ugen_fifo_in_use(struct usb2_fifo *f, int fflags) 1352 { 1353 struct usb2_fifo *f_rx; 1354 struct usb2_fifo *f_tx; 1355 1356 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1357 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1358 1359 if ((fflags & FREAD) && f_rx && 1360 (f_rx->xfer[0] || f_rx->xfer[1])) { 1361 return (1); /* RX FIFO in use */ 1362 } 1363 if ((fflags & FWRITE) && f_tx && 1364 (f_tx->xfer[0] || f_tx->xfer[1])) { 1365 return (1); /* TX FIFO in use */ 1366 } 1367 return (0); /* not in use */ 1368 } 1369 1370 static int 1371 ugen_ioctl(struct usb2_fifo *f, u_long cmd, void *addr, int fflags) 1372 { 1373 struct usb2_config usb2_config[1]; 1374 struct usb2_device_request req; 1375 union { 1376 struct usb2_fs_complete *pcomp; 1377 struct usb2_fs_start *pstart; 1378 struct usb2_fs_stop *pstop; 1379 struct usb2_fs_open *popen; 1380 struct usb2_fs_close *pclose; 1381 struct usb2_fs_clear_stall_sync *pstall; 1382 void *addr; 1383 } u; 1384 struct usb2_pipe *pipe; 1385 struct usb2_endpoint_descriptor *ed; 1386 int error = 0; 1387 uint8_t iface_index; 1388 uint8_t isread; 1389 uint8_t ep_index; 1390 1391 u.addr = addr; 1392 1393 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1394 1395 switch (cmd) { 1396 case USB_FS_COMPLETE: 1397 mtx_lock(f->priv_mtx); 1398 error = ugen_fs_get_complete(f, &ep_index); 1399 mtx_unlock(f->priv_mtx); 1400 1401 if (error) { 1402 error = EBUSY; 1403 break; 1404 } 1405 u.pcomp->ep_index = ep_index; 1406 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1407 break; 1408 1409 case USB_FS_START: 1410 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1411 if (error) { 1412 break; 1413 } 1414 mtx_lock(f->priv_mtx); 1415 usb2_transfer_start(f->fs_xfer[u.pstart->ep_index]); 1416 mtx_unlock(f->priv_mtx); 1417 break; 1418 1419 case USB_FS_STOP: 1420 if (u.pstop->ep_index >= f->fs_ep_max) { 1421 error = EINVAL; 1422 break; 1423 } 1424 mtx_lock(f->priv_mtx); 1425 usb2_transfer_stop(f->fs_xfer[u.pstop->ep_index]); 1426 mtx_unlock(f->priv_mtx); 1427 break; 1428 1429 case USB_FS_OPEN: 1430 if (u.popen->ep_index >= f->fs_ep_max) { 1431 error = EINVAL; 1432 break; 1433 } 1434 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1435 error = EBUSY; 1436 break; 1437 } 1438 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1439 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1440 } 1441 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1442 u.popen->max_frames = USB_FS_MAX_FRAMES; 1443 break; 1444 } 1445 if (u.popen->max_frames == 0) { 1446 error = EINVAL; 1447 break; 1448 } 1449 pipe = usb2_get_pipe_by_addr(f->udev, u.popen->ep_no); 1450 if (pipe == NULL) { 1451 error = EINVAL; 1452 break; 1453 } 1454 ed = pipe->edesc; 1455 if (ed == NULL) { 1456 error = ENXIO; 1457 break; 1458 } 1459 iface_index = pipe->iface_index; 1460 1461 bzero(usb2_config, sizeof(usb2_config)); 1462 1463 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1464 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1465 usb2_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1466 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 1467 usb2_config[0].mh.flags.proxy_buffer = 1; 1468 usb2_config[0].mh.callback = &ugen_default_fs_callback; 1469 usb2_config[0].mh.timeout = 0; /* no timeout */ 1470 usb2_config[0].mh.frames = u.popen->max_frames; 1471 usb2_config[0].mh.bufsize = u.popen->max_bufsize; 1472 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 1473 1474 if (usb2_config[0].type == UE_CONTROL) { 1475 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1476 error = EINVAL; 1477 break; 1478 } 1479 } else { 1480 1481 isread = ((usb2_config[0].endpoint & 1482 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1483 1484 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1485 isread = !isread; 1486 } 1487 /* check permissions */ 1488 if (isread) { 1489 if (!(fflags & FREAD)) { 1490 error = EPERM; 1491 break; 1492 } 1493 } else { 1494 if (!(fflags & FWRITE)) { 1495 error = EPERM; 1496 break; 1497 } 1498 } 1499 } 1500 error = usb2_transfer_setup(f->udev, &iface_index, 1501 f->fs_xfer + u.popen->ep_index, usb2_config, 1, 1502 f, f->priv_mtx); 1503 if (error == 0) { 1504 /* update maximums */ 1505 u.popen->max_packet_length = 1506 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1507 u.popen->max_bufsize = 1508 f->fs_xfer[u.popen->ep_index]->max_data_length; 1509 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1510 ((uint8_t *)0) + u.popen->ep_index; 1511 } else { 1512 error = ENOMEM; 1513 } 1514 break; 1515 1516 case USB_FS_CLOSE: 1517 if (u.pclose->ep_index >= f->fs_ep_max) { 1518 error = EINVAL; 1519 break; 1520 } 1521 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1522 error = EINVAL; 1523 break; 1524 } 1525 usb2_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1526 break; 1527 1528 case USB_FS_CLEAR_STALL_SYNC: 1529 if (u.pstall->ep_index >= f->fs_ep_max) { 1530 error = EINVAL; 1531 break; 1532 } 1533 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1534 error = EINVAL; 1535 break; 1536 } 1537 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1538 error = EINVAL; 1539 break; 1540 } 1541 mtx_lock(f->priv_mtx); 1542 error = usb2_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1543 mtx_unlock(f->priv_mtx); 1544 1545 if (error) { 1546 return (EBUSY); 1547 } 1548 pipe = f->fs_xfer[u.pstall->ep_index]->pipe; 1549 1550 /* setup a clear-stall packet */ 1551 req.bmRequestType = UT_WRITE_ENDPOINT; 1552 req.bRequest = UR_CLEAR_FEATURE; 1553 USETW(req.wValue, UF_ENDPOINT_HALT); 1554 req.wIndex[0] = pipe->edesc->bEndpointAddress; 1555 req.wIndex[1] = 0; 1556 USETW(req.wLength, 0); 1557 1558 error = usb2_do_request(f->udev, NULL, &req, NULL); 1559 if (error == 0) { 1560 usb2_clear_data_toggle(f->udev, pipe); 1561 } else { 1562 error = ENXIO; 1563 } 1564 break; 1565 1566 default: 1567 error = ENOIOCTL; 1568 break; 1569 } 1570 1571 DPRINTFN(6, "error=%d\n", error); 1572 1573 return (error); 1574 } 1575 1576 static int 1577 ugen_set_short_xfer(struct usb2_fifo *f, void *addr) 1578 { 1579 uint8_t t; 1580 1581 if (*(int *)addr) 1582 t = 1; 1583 else 1584 t = 0; 1585 1586 if (f->flag_short == t) { 1587 /* same value like before - accept */ 1588 return (0); 1589 } 1590 if (f->xfer[0] || f->xfer[1]) { 1591 /* cannot change this during transfer */ 1592 return (EBUSY); 1593 } 1594 f->flag_short = t; 1595 return (0); 1596 } 1597 1598 static int 1599 ugen_set_timeout(struct usb2_fifo *f, void *addr) 1600 { 1601 f->timeout = *(int *)addr; 1602 if (f->timeout > 65535) { 1603 /* limit user input */ 1604 f->timeout = 65535; 1605 } 1606 return (0); 1607 } 1608 1609 static int 1610 ugen_get_frame_size(struct usb2_fifo *f, void *addr) 1611 { 1612 if (f->xfer[0]) { 1613 *(int *)addr = f->xfer[0]->max_frame_size; 1614 } else { 1615 return (EINVAL); 1616 } 1617 return (0); 1618 } 1619 1620 static int 1621 ugen_set_buffer_size(struct usb2_fifo *f, void *addr) 1622 { 1623 usb2_frlength_t t; 1624 1625 if (*(int *)addr < 0) 1626 t = 0; /* use "wMaxPacketSize" */ 1627 else if (*(int *)addr < (256 * 1024)) 1628 t = *(int *)addr; 1629 else 1630 t = 256 * 1024; 1631 1632 if (f->bufsize == t) { 1633 /* same value like before - accept */ 1634 return (0); 1635 } 1636 if (f->xfer[0] || f->xfer[1]) { 1637 /* cannot change this during transfer */ 1638 return (EBUSY); 1639 } 1640 f->bufsize = t; 1641 return (0); 1642 } 1643 1644 static int 1645 ugen_get_buffer_size(struct usb2_fifo *f, void *addr) 1646 { 1647 *(int *)addr = f->bufsize; 1648 return (0); 1649 } 1650 1651 static int 1652 ugen_get_iface_desc(struct usb2_fifo *f, 1653 struct usb2_interface_descriptor *idesc) 1654 { 1655 struct usb2_interface *iface; 1656 1657 iface = usb2_get_iface(f->udev, f->iface_index); 1658 if (iface && iface->idesc) { 1659 *idesc = *(iface->idesc); 1660 } else { 1661 return (EIO); 1662 } 1663 return (0); 1664 } 1665 1666 static int 1667 ugen_get_endpoint_desc(struct usb2_fifo *f, 1668 struct usb2_endpoint_descriptor *ed) 1669 { 1670 struct usb2_pipe *pipe; 1671 1672 pipe = f->priv_sc0; 1673 1674 if (pipe && pipe->edesc) { 1675 *ed = *pipe->edesc; 1676 } else { 1677 return (EINVAL); 1678 } 1679 return (0); 1680 } 1681 1682 static int 1683 ugen_set_power_mode(struct usb2_fifo *f, int mode) 1684 { 1685 struct usb2_device *udev = f->udev; 1686 int err; 1687 uint8_t old_mode; 1688 1689 if ((udev == NULL) || 1690 (udev->parent_hub == NULL)) { 1691 return (EINVAL); 1692 } 1693 err = priv_check(curthread, PRIV_DRIVER); 1694 if (err) 1695 return (err); 1696 1697 /* get old power mode */ 1698 old_mode = udev->power_mode; 1699 1700 /* if no change, then just return */ 1701 if (old_mode == mode) 1702 return (0); 1703 1704 switch (mode) { 1705 case USB_POWER_MODE_OFF: 1706 /* get the device unconfigured */ 1707 err = ugen_set_config(f, USB_UNCONFIG_INDEX); 1708 if (err) { 1709 DPRINTFN(0, "Could not unconfigure " 1710 "device (ignored)\n"); 1711 } 1712 1713 /* clear port enable */ 1714 err = usb2_req_clear_port_feature(udev->parent_hub, 1715 NULL, udev->port_no, UHF_PORT_ENABLE); 1716 break; 1717 1718 case USB_POWER_MODE_ON: 1719 case USB_POWER_MODE_SAVE: 1720 break; 1721 1722 case USB_POWER_MODE_RESUME: 1723 err = usb2_req_clear_port_feature(udev->parent_hub, 1724 NULL, udev->port_no, UHF_PORT_SUSPEND); 1725 mode = USB_POWER_MODE_SAVE; 1726 break; 1727 1728 case USB_POWER_MODE_SUSPEND: 1729 err = usb2_req_set_port_feature(udev->parent_hub, 1730 NULL, udev->port_no, UHF_PORT_SUSPEND); 1731 mode = USB_POWER_MODE_SAVE; 1732 break; 1733 1734 default: 1735 return (EINVAL); 1736 } 1737 1738 if (err) 1739 return (ENXIO); /* I/O failure */ 1740 1741 /* if we are powered off we need to re-enumerate first */ 1742 if (old_mode == USB_POWER_MODE_OFF) { 1743 err = ugen_re_enumerate(f); 1744 if (err) 1745 return (err); 1746 } 1747 1748 /* set new power mode */ 1749 usb2_set_power_mode(udev, mode); 1750 1751 return (0); /* success */ 1752 } 1753 1754 static int 1755 ugen_get_power_mode(struct usb2_fifo *f) 1756 { 1757 struct usb2_device *udev = f->udev; 1758 1759 if ((udev == NULL) || 1760 (udev->parent_hub == NULL)) { 1761 return (USB_POWER_MODE_ON); 1762 } 1763 return (udev->power_mode); 1764 } 1765 1766 static int 1767 ugen_do_port_feature(struct usb2_fifo *f, uint8_t port_no, 1768 uint8_t set, uint16_t feature) 1769 { 1770 struct usb2_device *udev = f->udev; 1771 struct usb2_hub *hub; 1772 int err; 1773 1774 err = priv_check(curthread, PRIV_DRIVER); 1775 if (err) { 1776 return (err); 1777 } 1778 if (port_no == 0) { 1779 return (EINVAL); 1780 } 1781 if ((udev == NULL) || 1782 (udev->hub == NULL)) { 1783 return (EINVAL); 1784 } 1785 hub = udev->hub; 1786 1787 if (port_no > hub->nports) { 1788 return (EINVAL); 1789 } 1790 if (set) 1791 err = usb2_req_set_port_feature(udev, 1792 NULL, port_no, feature); 1793 else 1794 err = usb2_req_clear_port_feature(udev, 1795 NULL, port_no, feature); 1796 1797 if (err) 1798 return (ENXIO); /* failure */ 1799 1800 return (0); /* success */ 1801 } 1802 1803 static int 1804 ugen_iface_ioctl(struct usb2_fifo *f, u_long cmd, void *addr, int fflags) 1805 { 1806 struct usb2_fifo *f_rx; 1807 struct usb2_fifo *f_tx; 1808 int error = 0; 1809 1810 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1811 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1812 1813 switch (cmd) { 1814 case USB_SET_RX_SHORT_XFER: 1815 if (fflags & FREAD) { 1816 error = ugen_set_short_xfer(f_rx, addr); 1817 } else { 1818 error = EINVAL; 1819 } 1820 break; 1821 1822 case USB_SET_TX_FORCE_SHORT: 1823 if (fflags & FWRITE) { 1824 error = ugen_set_short_xfer(f_tx, addr); 1825 } else { 1826 error = EINVAL; 1827 } 1828 break; 1829 1830 case USB_SET_RX_TIMEOUT: 1831 if (fflags & FREAD) { 1832 error = ugen_set_timeout(f_rx, addr); 1833 } else { 1834 error = EINVAL; 1835 } 1836 break; 1837 1838 case USB_SET_TX_TIMEOUT: 1839 if (fflags & FWRITE) { 1840 error = ugen_set_timeout(f_tx, addr); 1841 } else { 1842 error = EINVAL; 1843 } 1844 break; 1845 1846 case USB_GET_RX_FRAME_SIZE: 1847 if (fflags & FREAD) { 1848 error = ugen_get_frame_size(f_rx, addr); 1849 } else { 1850 error = EINVAL; 1851 } 1852 break; 1853 1854 case USB_GET_TX_FRAME_SIZE: 1855 if (fflags & FWRITE) { 1856 error = ugen_get_frame_size(f_tx, addr); 1857 } else { 1858 error = EINVAL; 1859 } 1860 break; 1861 1862 case USB_SET_RX_BUFFER_SIZE: 1863 if (fflags & FREAD) { 1864 error = ugen_set_buffer_size(f_rx, addr); 1865 } else { 1866 error = EINVAL; 1867 } 1868 break; 1869 1870 case USB_SET_TX_BUFFER_SIZE: 1871 if (fflags & FWRITE) { 1872 error = ugen_set_buffer_size(f_tx, addr); 1873 } else { 1874 error = EINVAL; 1875 } 1876 break; 1877 1878 case USB_GET_RX_BUFFER_SIZE: 1879 if (fflags & FREAD) { 1880 error = ugen_get_buffer_size(f_rx, addr); 1881 } else { 1882 error = EINVAL; 1883 } 1884 break; 1885 1886 case USB_GET_TX_BUFFER_SIZE: 1887 if (fflags & FWRITE) { 1888 error = ugen_get_buffer_size(f_tx, addr); 1889 } else { 1890 error = EINVAL; 1891 } 1892 break; 1893 1894 case USB_GET_RX_INTERFACE_DESC: 1895 if (fflags & FREAD) { 1896 error = ugen_get_iface_desc(f_rx, addr); 1897 } else { 1898 error = EINVAL; 1899 } 1900 break; 1901 1902 case USB_GET_TX_INTERFACE_DESC: 1903 if (fflags & FWRITE) { 1904 error = ugen_get_iface_desc(f_tx, addr); 1905 } else { 1906 error = EINVAL; 1907 } 1908 break; 1909 1910 case USB_GET_RX_ENDPOINT_DESC: 1911 if (fflags & FREAD) { 1912 error = ugen_get_endpoint_desc(f_rx, addr); 1913 } else { 1914 error = EINVAL; 1915 } 1916 break; 1917 1918 case USB_GET_TX_ENDPOINT_DESC: 1919 if (fflags & FWRITE) { 1920 error = ugen_get_endpoint_desc(f_tx, addr); 1921 } else { 1922 error = EINVAL; 1923 } 1924 break; 1925 1926 case USB_SET_RX_STALL_FLAG: 1927 if ((fflags & FREAD) && (*(int *)addr)) { 1928 f_rx->flag_stall = 1; 1929 } 1930 break; 1931 1932 case USB_SET_TX_STALL_FLAG: 1933 if ((fflags & FWRITE) && (*(int *)addr)) { 1934 f_tx->flag_stall = 1; 1935 } 1936 break; 1937 1938 default: 1939 error = ENOIOCTL; 1940 break; 1941 } 1942 return (error); 1943 } 1944 1945 static int 1946 ugen_ioctl_post(struct usb2_fifo *f, u_long cmd, void *addr, int fflags) 1947 { 1948 union { 1949 struct usb2_interface_descriptor *idesc; 1950 struct usb2_alt_interface *ai; 1951 struct usb2_device_descriptor *ddesc; 1952 struct usb2_config_descriptor *cdesc; 1953 struct usb2_device_stats *stat; 1954 struct usb2_fs_init *pinit; 1955 struct usb2_fs_uninit *puninit; 1956 uint32_t *ptime; 1957 void *addr; 1958 int *pint; 1959 } u; 1960 struct usb2_device_descriptor *dtemp; 1961 struct usb2_config_descriptor *ctemp; 1962 struct usb2_interface *iface; 1963 int error = 0; 1964 uint8_t n; 1965 1966 u.addr = addr; 1967 1968 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1969 1970 switch (cmd) { 1971 case USB_DISCOVER: 1972 usb2_needs_explore_all(); 1973 break; 1974 1975 case USB_SETDEBUG: 1976 if (!(fflags & FWRITE)) { 1977 error = EPERM; 1978 break; 1979 } 1980 usb2_debug = *(int *)addr; 1981 break; 1982 1983 case USB_GET_CONFIG: 1984 *(int *)addr = f->udev->curr_config_index; 1985 break; 1986 1987 case USB_SET_CONFIG: 1988 if (!(fflags & FWRITE)) { 1989 error = EPERM; 1990 break; 1991 } 1992 error = ugen_set_config(f, *(int *)addr); 1993 break; 1994 1995 case USB_GET_ALTINTERFACE: 1996 iface = usb2_get_iface(f->udev, 1997 u.ai->uai_interface_index); 1998 if (iface && iface->idesc) { 1999 u.ai->uai_alt_index = iface->alt_index; 2000 } else { 2001 error = EINVAL; 2002 } 2003 break; 2004 2005 case USB_SET_ALTINTERFACE: 2006 if (!(fflags & FWRITE)) { 2007 error = EPERM; 2008 break; 2009 } 2010 error = ugen_set_interface(f, 2011 u.ai->uai_interface_index, u.ai->uai_alt_index); 2012 break; 2013 2014 case USB_GET_DEVICE_DESC: 2015 dtemp = usb2_get_device_descriptor(f->udev); 2016 if (!dtemp) { 2017 error = EIO; 2018 break; 2019 } 2020 *u.ddesc = *dtemp; 2021 break; 2022 2023 case USB_GET_CONFIG_DESC: 2024 ctemp = usb2_get_config_descriptor(f->udev); 2025 if (!ctemp) { 2026 error = EIO; 2027 break; 2028 } 2029 *u.cdesc = *ctemp; 2030 break; 2031 2032 case USB_GET_FULL_DESC: 2033 error = ugen_get_cdesc(f, addr); 2034 break; 2035 2036 case USB_GET_STRING_DESC: 2037 error = ugen_get_sdesc(f, addr); 2038 break; 2039 2040 case USB_GET_IFACE_DRIVER: 2041 error = ugen_get_iface_driver(f, addr); 2042 break; 2043 2044 case USB_REQUEST: 2045 case USB_DO_REQUEST: 2046 if (!(fflags & FWRITE)) { 2047 error = EPERM; 2048 break; 2049 } 2050 error = ugen_do_request(f, addr); 2051 break; 2052 2053 case USB_DEVICEINFO: 2054 case USB_GET_DEVICEINFO: 2055 error = usb2_gen_fill_deviceinfo(f, addr); 2056 break; 2057 2058 case USB_DEVICESTATS: 2059 for (n = 0; n != 4; n++) { 2060 2061 u.stat->uds_requests_fail[n] = 2062 f->udev->bus->stats_err.uds_requests[n]; 2063 2064 u.stat->uds_requests_ok[n] = 2065 f->udev->bus->stats_ok.uds_requests[n]; 2066 } 2067 break; 2068 2069 case USB_DEVICEENUMERATE: 2070 error = ugen_re_enumerate(f); 2071 break; 2072 2073 case USB_GET_PLUGTIME: 2074 *u.ptime = f->udev->plugtime; 2075 break; 2076 2077 case USB_CLAIM_INTERFACE: 2078 case USB_RELEASE_INTERFACE: 2079 /* TODO */ 2080 break; 2081 2082 case USB_IFACE_DRIVER_ACTIVE: 2083 /* TODO */ 2084 *u.pint = 0; 2085 break; 2086 2087 case USB_IFACE_DRIVER_DETACH: 2088 /* TODO */ 2089 error = priv_check(curthread, PRIV_DRIVER); 2090 if (error) { 2091 break; 2092 } 2093 error = EINVAL; 2094 break; 2095 2096 case USB_SET_POWER_MODE: 2097 error = ugen_set_power_mode(f, *u.pint); 2098 break; 2099 2100 case USB_GET_POWER_MODE: 2101 *u.pint = ugen_get_power_mode(f); 2102 break; 2103 2104 case USB_SET_PORT_ENABLE: 2105 error = ugen_do_port_feature(f, 2106 *u.pint, 1, UHF_PORT_ENABLE); 2107 break; 2108 2109 case USB_SET_PORT_DISABLE: 2110 error = ugen_do_port_feature(f, 2111 *u.pint, 0, UHF_PORT_ENABLE); 2112 break; 2113 2114 case USB_FS_INIT: 2115 /* verify input parameters */ 2116 if (u.pinit->pEndpoints == NULL) { 2117 error = EINVAL; 2118 break; 2119 } 2120 if (u.pinit->ep_index_max > 127) { 2121 error = EINVAL; 2122 break; 2123 } 2124 if (u.pinit->ep_index_max == 0) { 2125 error = EINVAL; 2126 break; 2127 } 2128 if (f->fs_xfer != NULL) { 2129 error = EBUSY; 2130 break; 2131 } 2132 if (f->dev_ep_index != 0) { 2133 error = EINVAL; 2134 break; 2135 } 2136 if (ugen_fifo_in_use(f, fflags)) { 2137 error = EBUSY; 2138 break; 2139 } 2140 error = usb2_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2141 if (error) { 2142 break; 2143 } 2144 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2145 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2146 if (f->fs_xfer == NULL) { 2147 usb2_fifo_free_buffer(f); 2148 error = ENOMEM; 2149 break; 2150 } 2151 f->fs_ep_max = u.pinit->ep_index_max; 2152 f->fs_ep_ptr = u.pinit->pEndpoints; 2153 break; 2154 2155 case USB_FS_UNINIT: 2156 if (u.puninit->dummy != 0) { 2157 error = EINVAL; 2158 break; 2159 } 2160 error = ugen_fs_uninit(f); 2161 break; 2162 2163 default: 2164 mtx_lock(f->priv_mtx); 2165 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2166 mtx_unlock(f->priv_mtx); 2167 break; 2168 } 2169 DPRINTFN(6, "error=%d\n", error); 2170 return (error); 2171 } 2172 2173 static void 2174 ugen_default_fs_callback(struct usb2_xfer *xfer) 2175 { 2176 ; /* workaround for a bug in "indent" */ 2177 2178 DPRINTF("st=%u alen=%u aframes=%u\n", 2179 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2180 2181 switch (USB_GET_STATE(xfer)) { 2182 case USB_ST_SETUP: 2183 usb2_start_hardware(xfer); 2184 break; 2185 default: 2186 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2187 break; 2188 } 2189 } 2190 #endif /* USB_HAVE_UGEN */ 2191