usb_generic.c revision 188942
1/* $FreeBSD: head/sys/dev/usb/usb_generic.c 188942 2009-02-23 18:31:00Z thompsa $ */ 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_defs.h> 28#include <dev/usb/usb_mfunc.h> 29#include <dev/usb/usb.h> 30#include <dev/usb/usb_ioctl.h> 31#include <dev/usb/usb_error.h> 32 33#define USB_DEBUG_VAR ugen_debug 34 35#include <dev/usb/usb_core.h> 36#include <dev/usb/usb_mbuf.h> 37#include <dev/usb/usb_dev.h> 38#include <dev/usb/usb_process.h> 39#include <dev/usb/usb_device.h> 40#include <dev/usb/usb_debug.h> 41#include <dev/usb/usb_request.h> 42#include <dev/usb/usb_busdma.h> 43#include <dev/usb/usb_util.h> 44#include <dev/usb/usb_hub.h> 45#include <dev/usb/usb_generic.h> 46#include <dev/usb/usb_transfer.h> 47 48#include <dev/usb/usb_controller.h> 49#include <dev/usb/usb_bus.h> 50 51/* defines */ 52 53#define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 54#define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 55#define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 56 57/* function prototypes */ 58 59static usb2_callback_t ugen_read_clear_stall_callback; 60static usb2_callback_t ugen_write_clear_stall_callback; 61static usb2_callback_t ugen_default_read_callback; 62static usb2_callback_t ugen_default_write_callback; 63static usb2_callback_t ugen_isoc_read_callback; 64static usb2_callback_t ugen_isoc_write_callback; 65static usb2_callback_t ugen_default_fs_callback; 66 67static usb2_fifo_open_t ugen_open; 68static usb2_fifo_close_t ugen_close; 69static usb2_fifo_ioctl_t ugen_ioctl; 70static usb2_fifo_ioctl_t ugen_ioctl_post; 71static usb2_fifo_cmd_t ugen_start_read; 72static usb2_fifo_cmd_t ugen_start_write; 73static usb2_fifo_cmd_t ugen_stop_io; 74 75static int ugen_transfer_setup(struct usb2_fifo *, 76 const struct usb2_config *, uint8_t); 77static int ugen_open_pipe_write(struct usb2_fifo *); 78static int ugen_open_pipe_read(struct usb2_fifo *); 79static int ugen_set_config(struct usb2_fifo *, uint8_t); 80static int ugen_set_interface(struct usb2_fifo *, uint8_t, uint8_t); 81static int ugen_get_cdesc(struct usb2_fifo *, struct usb2_gen_descriptor *); 82static int ugen_get_sdesc(struct usb2_fifo *, struct usb2_gen_descriptor *); 83static int ugen_get_iface_driver(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd); 84static int usb2_gen_fill_deviceinfo(struct usb2_fifo *, 85 struct usb2_device_info *); 86static int ugen_re_enumerate(struct usb2_fifo *); 87static int ugen_iface_ioctl(struct usb2_fifo *, u_long, void *, int); 88static uint8_t ugen_fs_get_complete(struct usb2_fifo *, uint8_t *); 89static int ugen_fs_uninit(struct usb2_fifo *f); 90 91/* structures */ 92 93struct usb2_fifo_methods usb2_ugen_methods = { 94 .f_open = &ugen_open, 95 .f_close = &ugen_close, 96 .f_ioctl = &ugen_ioctl, 97 .f_ioctl_post = &ugen_ioctl_post, 98 .f_start_read = &ugen_start_read, 99 .f_stop_read = &ugen_stop_io, 100 .f_start_write = &ugen_start_write, 101 .f_stop_write = &ugen_stop_io, 102}; 103 104#if USB_DEBUG 105static int ugen_debug = 0; 106 107SYSCTL_NODE(_hw_usb2, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 108SYSCTL_INT(_hw_usb2_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 109 0, "Debug level"); 110#endif 111 112 113/* prototypes */ 114 115static int 116ugen_transfer_setup(struct usb2_fifo *f, 117 const struct usb2_config *setup, uint8_t n_setup) 118{ 119 struct usb2_pipe *pipe = f->priv_sc0; 120 struct usb2_device *udev = f->udev; 121 uint8_t iface_index = pipe->iface_index; 122 int error; 123 124 mtx_unlock(f->priv_mtx); 125 126 /* 127 * "usb2_transfer_setup()" can sleep so one needs to make a wrapper, 128 * exiting the mutex and checking things 129 */ 130 error = usb2_transfer_setup(udev, &iface_index, f->xfer, 131 setup, n_setup, f, f->priv_mtx); 132 if (error == 0) { 133 134 if (f->xfer[0]->nframes == 1) { 135 error = usb2_fifo_alloc_buffer(f, 136 f->xfer[0]->max_data_length, 2); 137 } else { 138 error = usb2_fifo_alloc_buffer(f, 139 f->xfer[0]->max_frame_size, 140 2 * f->xfer[0]->nframes); 141 } 142 if (error) { 143 usb2_transfer_unsetup(f->xfer, n_setup); 144 } 145 } 146 mtx_lock(f->priv_mtx); 147 148 return (error); 149} 150 151static int 152ugen_open(struct usb2_fifo *f, int fflags, struct thread *td) 153{ 154 struct usb2_pipe *pipe = f->priv_sc0; 155 struct usb2_endpoint_descriptor *ed = pipe->edesc; 156 uint8_t type; 157 158 DPRINTFN(6, "flag=0x%x\n", fflags); 159 160 mtx_lock(f->priv_mtx); 161 switch (usb2_get_speed(f->udev)) { 162 case USB_SPEED_LOW: 163 case USB_SPEED_FULL: 164 f->nframes = UGEN_HW_FRAMES; 165 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 166 break; 167 default: 168 f->nframes = UGEN_HW_FRAMES * 8; 169 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 170 break; 171 } 172 173 type = ed->bmAttributes & UE_XFERTYPE; 174 if (type == UE_INTERRUPT) { 175 f->bufsize = 0; /* use "wMaxPacketSize" */ 176 } 177 f->timeout = USB_NO_TIMEOUT; 178 f->flag_short = 0; 179 f->fifo_zlp = 0; 180 mtx_unlock(f->priv_mtx); 181 182 return (0); 183} 184 185static void 186ugen_close(struct usb2_fifo *f, int fflags, struct thread *td) 187{ 188 DPRINTFN(6, "flag=0x%x\n", fflags); 189 190 /* cleanup */ 191 192 mtx_lock(f->priv_mtx); 193 usb2_transfer_stop(f->xfer[0]); 194 usb2_transfer_stop(f->xfer[1]); 195 mtx_unlock(f->priv_mtx); 196 197 usb2_transfer_unsetup(f->xfer, 2); 198 usb2_fifo_free_buffer(f); 199 200 if (ugen_fs_uninit(f)) { 201 /* ignore any errors - we are closing */ 202 DPRINTFN(6, "no FIFOs\n"); 203 } 204} 205 206static int 207ugen_open_pipe_write(struct usb2_fifo *f) 208{ 209 struct usb2_config usb2_config[2]; 210 struct usb2_pipe *pipe = f->priv_sc0; 211 struct usb2_endpoint_descriptor *ed = pipe->edesc; 212 213 mtx_assert(f->priv_mtx, MA_OWNED); 214 215 if (f->xfer[0] || f->xfer[1]) { 216 /* transfers are already opened */ 217 return (0); 218 } 219 bzero(usb2_config, sizeof(usb2_config)); 220 221 usb2_config[1].type = UE_CONTROL; 222 usb2_config[1].endpoint = 0; 223 usb2_config[1].direction = UE_DIR_ANY; 224 usb2_config[1].mh.timeout = 1000; /* 1 second */ 225 usb2_config[1].mh.interval = 50;/* 50 milliseconds */ 226 usb2_config[1].mh.bufsize = sizeof(struct usb2_device_request); 227 usb2_config[1].mh.callback = &ugen_write_clear_stall_callback; 228 229 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 230 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 231 usb2_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 232 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 233 usb2_config[0].mh.flags.proxy_buffer = 1; 234 235 switch (ed->bmAttributes & UE_XFERTYPE) { 236 case UE_INTERRUPT: 237 case UE_BULK: 238 if (f->flag_short) { 239 usb2_config[0].mh.flags.force_short_xfer = 1; 240 } 241 usb2_config[0].mh.callback = &ugen_default_write_callback; 242 usb2_config[0].mh.timeout = f->timeout; 243 usb2_config[0].mh.frames = 1; 244 usb2_config[0].mh.bufsize = f->bufsize; 245 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 246 if (ugen_transfer_setup(f, usb2_config, 2)) { 247 return (EIO); 248 } 249 /* first transfer does not clear stall */ 250 f->flag_stall = 0; 251 break; 252 253 case UE_ISOCHRONOUS: 254 usb2_config[0].mh.flags.short_xfer_ok = 1; 255 usb2_config[0].mh.bufsize = 0; /* use default */ 256 usb2_config[0].mh.frames = f->nframes; 257 usb2_config[0].mh.callback = &ugen_isoc_write_callback; 258 usb2_config[0].mh.timeout = 0; 259 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 260 261 /* clone configuration */ 262 usb2_config[1] = usb2_config[0]; 263 264 if (ugen_transfer_setup(f, usb2_config, 2)) { 265 return (EIO); 266 } 267 break; 268 default: 269 return (EINVAL); 270 } 271 return (0); 272} 273 274static int 275ugen_open_pipe_read(struct usb2_fifo *f) 276{ 277 struct usb2_config usb2_config[2]; 278 struct usb2_pipe *pipe = f->priv_sc0; 279 struct usb2_endpoint_descriptor *ed = pipe->edesc; 280 281 mtx_assert(f->priv_mtx, MA_OWNED); 282 283 if (f->xfer[0] || f->xfer[1]) { 284 /* transfers are already opened */ 285 return (0); 286 } 287 bzero(usb2_config, sizeof(usb2_config)); 288 289 usb2_config[1].type = UE_CONTROL; 290 usb2_config[1].endpoint = 0; 291 usb2_config[1].direction = UE_DIR_ANY; 292 usb2_config[1].mh.timeout = 1000; /* 1 second */ 293 usb2_config[1].mh.interval = 50;/* 50 milliseconds */ 294 usb2_config[1].mh.bufsize = sizeof(struct usb2_device_request); 295 usb2_config[1].mh.callback = &ugen_read_clear_stall_callback; 296 297 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 298 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 299 usb2_config[0].direction = UE_DIR_IN; 300 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 301 usb2_config[0].mh.flags.proxy_buffer = 1; 302 303 switch (ed->bmAttributes & UE_XFERTYPE) { 304 case UE_INTERRUPT: 305 case UE_BULK: 306 if (f->flag_short) { 307 usb2_config[0].mh.flags.short_xfer_ok = 1; 308 } 309 usb2_config[0].mh.timeout = f->timeout; 310 usb2_config[0].mh.frames = 1; 311 usb2_config[0].mh.callback = &ugen_default_read_callback; 312 usb2_config[0].mh.bufsize = f->bufsize; 313 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 314 315 if (ugen_transfer_setup(f, usb2_config, 2)) { 316 return (EIO); 317 } 318 /* first transfer does not clear stall */ 319 f->flag_stall = 0; 320 break; 321 322 case UE_ISOCHRONOUS: 323 usb2_config[0].mh.flags.short_xfer_ok = 1; 324 usb2_config[0].mh.bufsize = 0; /* use default */ 325 usb2_config[0].mh.frames = f->nframes; 326 usb2_config[0].mh.callback = &ugen_isoc_read_callback; 327 usb2_config[0].mh.timeout = 0; 328 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 329 330 /* clone configuration */ 331 usb2_config[1] = usb2_config[0]; 332 333 if (ugen_transfer_setup(f, usb2_config, 2)) { 334 return (EIO); 335 } 336 break; 337 338 default: 339 return (EINVAL); 340 } 341 return (0); 342} 343 344static void 345ugen_start_read(struct usb2_fifo *f) 346{ 347 /* check that pipes are open */ 348 if (ugen_open_pipe_read(f)) { 349 /* signal error */ 350 usb2_fifo_put_data_error(f); 351 } 352 /* start transfers */ 353 usb2_transfer_start(f->xfer[0]); 354 usb2_transfer_start(f->xfer[1]); 355} 356 357static void 358ugen_start_write(struct usb2_fifo *f) 359{ 360 /* check that pipes are open */ 361 if (ugen_open_pipe_write(f)) { 362 /* signal error */ 363 usb2_fifo_get_data_error(f); 364 } 365 /* start transfers */ 366 usb2_transfer_start(f->xfer[0]); 367 usb2_transfer_start(f->xfer[1]); 368} 369 370static void 371ugen_stop_io(struct usb2_fifo *f) 372{ 373 /* stop transfers */ 374 usb2_transfer_stop(f->xfer[0]); 375 usb2_transfer_stop(f->xfer[1]); 376} 377 378static void 379ugen_default_read_callback(struct usb2_xfer *xfer) 380{ 381 struct usb2_fifo *f = xfer->priv_sc; 382 struct usb2_mbuf *m; 383 384 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 385 386 switch (USB_GET_STATE(xfer)) { 387 case USB_ST_TRANSFERRED: 388 if (xfer->actlen == 0) { 389 if (f->fifo_zlp != 4) { 390 f->fifo_zlp++; 391 } else { 392 /* 393 * Throttle a little bit we have multiple ZLPs 394 * in a row! 395 */ 396 xfer->interval = 64; /* ms */ 397 } 398 } else { 399 /* clear throttle */ 400 xfer->interval = 0; 401 f->fifo_zlp = 0; 402 } 403 usb2_fifo_put_data(f, xfer->frbuffers, 0, 404 xfer->actlen, 1); 405 406 case USB_ST_SETUP: 407 if (f->flag_stall) { 408 usb2_transfer_start(f->xfer[1]); 409 break; 410 } 411 USB_IF_POLL(&f->free_q, m); 412 if (m) { 413 xfer->frlengths[0] = xfer->max_data_length; 414 usb2_start_hardware(xfer); 415 } 416 break; 417 418 default: /* Error */ 419 if (xfer->error != USB_ERR_CANCELLED) { 420 f->flag_stall = 1; 421 f->fifo_zlp = 0; 422 usb2_transfer_start(f->xfer[1]); 423 } 424 break; 425 } 426} 427 428static void 429ugen_default_write_callback(struct usb2_xfer *xfer) 430{ 431 struct usb2_fifo *f = xfer->priv_sc; 432 uint32_t actlen; 433 434 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 435 436 switch (USB_GET_STATE(xfer)) { 437 case USB_ST_SETUP: 438 case USB_ST_TRANSFERRED: 439 /* 440 * If writing is in stall, just jump to clear stall 441 * callback and solve the situation. 442 */ 443 if (f->flag_stall) { 444 usb2_transfer_start(f->xfer[1]); 445 break; 446 } 447 /* 448 * Write data, setup and perform hardware transfer. 449 */ 450 if (usb2_fifo_get_data(f, xfer->frbuffers, 0, 451 xfer->max_data_length, &actlen, 0)) { 452 xfer->frlengths[0] = actlen; 453 usb2_start_hardware(xfer); 454 } 455 break; 456 457 default: /* Error */ 458 if (xfer->error != USB_ERR_CANCELLED) { 459 f->flag_stall = 1; 460 usb2_transfer_start(f->xfer[1]); 461 } 462 break; 463 } 464} 465 466static void 467ugen_read_clear_stall_callback(struct usb2_xfer *xfer) 468{ 469 struct usb2_fifo *f = xfer->priv_sc; 470 struct usb2_xfer *xfer_other = f->xfer[0]; 471 472 if (f->flag_stall == 0) { 473 /* nothing to do */ 474 return; 475 } 476 if (usb2_clear_stall_callback(xfer, xfer_other)) { 477 DPRINTFN(5, "f=%p: stall cleared\n", f); 478 f->flag_stall = 0; 479 usb2_transfer_start(xfer_other); 480 } 481} 482 483static void 484ugen_write_clear_stall_callback(struct usb2_xfer *xfer) 485{ 486 struct usb2_fifo *f = xfer->priv_sc; 487 struct usb2_xfer *xfer_other = f->xfer[0]; 488 489 if (f->flag_stall == 0) { 490 /* nothing to do */ 491 return; 492 } 493 if (usb2_clear_stall_callback(xfer, xfer_other)) { 494 DPRINTFN(5, "f=%p: stall cleared\n", f); 495 f->flag_stall = 0; 496 usb2_transfer_start(xfer_other); 497 } 498} 499 500static void 501ugen_isoc_read_callback(struct usb2_xfer *xfer) 502{ 503 struct usb2_fifo *f = xfer->priv_sc; 504 uint32_t offset; 505 uint16_t n; 506 507 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 508 509 switch (USB_GET_STATE(xfer)) { 510 case USB_ST_TRANSFERRED: 511 512 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 513 514 offset = 0; 515 516 for (n = 0; n != xfer->aframes; n++) { 517 usb2_fifo_put_data(f, xfer->frbuffers, offset, 518 xfer->frlengths[n], 1); 519 offset += xfer->max_frame_size; 520 } 521 522 case USB_ST_SETUP: 523tr_setup: 524 for (n = 0; n != xfer->nframes; n++) { 525 /* setup size for next transfer */ 526 xfer->frlengths[n] = xfer->max_frame_size; 527 } 528 usb2_start_hardware(xfer); 529 break; 530 531 default: /* Error */ 532 if (xfer->error == USB_ERR_CANCELLED) { 533 break; 534 } 535 goto tr_setup; 536 } 537} 538 539static void 540ugen_isoc_write_callback(struct usb2_xfer *xfer) 541{ 542 struct usb2_fifo *f = xfer->priv_sc; 543 uint32_t actlen; 544 uint32_t offset; 545 uint16_t n; 546 547 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 548 549 switch (USB_GET_STATE(xfer)) { 550 case USB_ST_TRANSFERRED: 551 case USB_ST_SETUP: 552tr_setup: 553 offset = 0; 554 for (n = 0; n != xfer->nframes; n++) { 555 if (usb2_fifo_get_data(f, xfer->frbuffers, offset, 556 xfer->max_frame_size, &actlen, 1)) { 557 xfer->frlengths[n] = actlen; 558 offset += actlen; 559 } else { 560 break; 561 } 562 } 563 564 for (; n != xfer->nframes; n++) { 565 /* fill in zero frames */ 566 xfer->frlengths[n] = 0; 567 } 568 usb2_start_hardware(xfer); 569 break; 570 571 default: /* Error */ 572 if (xfer->error == USB_ERR_CANCELLED) { 573 break; 574 } 575 goto tr_setup; 576 } 577} 578 579static int 580ugen_set_config(struct usb2_fifo *f, uint8_t index) 581{ 582 DPRINTFN(2, "index %u\n", index); 583 584 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 585 /* not possible in device side mode */ 586 return (ENOTTY); 587 } 588 if (f->udev->curr_config_index == index) { 589 /* no change needed */ 590 return (0); 591 } 592 /* make sure all FIFO's are gone */ 593 /* else there can be a deadlock */ 594 if (ugen_fs_uninit(f)) { 595 /* ignore any errors */ 596 DPRINTFN(6, "no FIFOs\n"); 597 } 598 /* change setting - will free generic FIFOs, if any */ 599 if (usb2_set_config_index(f->udev, index)) { 600 return (EIO); 601 } 602 /* probe and attach */ 603 if (usb2_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) { 604 return (EIO); 605 } 606 return (0); 607} 608 609static int 610ugen_set_interface(struct usb2_fifo *f, 611 uint8_t iface_index, uint8_t alt_index) 612{ 613 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 614 615 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 616 /* not possible in device side mode */ 617 return (ENOTTY); 618 } 619 /* make sure all FIFO's are gone */ 620 /* else there can be a deadlock */ 621 if (ugen_fs_uninit(f)) { 622 /* ignore any errors */ 623 DPRINTFN(6, "no FIFOs\n"); 624 } 625 /* change setting - will free generic FIFOs, if any */ 626 if (usb2_set_alt_interface_index(f->udev, iface_index, alt_index)) { 627 return (EIO); 628 } 629 /* probe and attach */ 630 if (usb2_probe_and_attach(f->udev, iface_index)) { 631 return (EIO); 632 } 633 return (0); 634} 635 636/*------------------------------------------------------------------------* 637 * ugen_get_cdesc 638 * 639 * This function will retrieve the complete configuration descriptor 640 * at the given index. 641 *------------------------------------------------------------------------*/ 642static int 643ugen_get_cdesc(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 644{ 645 struct usb2_config_descriptor *cdesc; 646 struct usb2_device *udev = f->udev; 647 int error; 648 uint16_t len; 649 uint8_t free_data; 650 651 DPRINTFN(6, "\n"); 652 653 if (ugd->ugd_data == NULL) { 654 /* userland pointer should not be zero */ 655 return (EINVAL); 656 } 657 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 658 (ugd->ugd_config_index == udev->curr_config_index)) { 659 cdesc = usb2_get_config_descriptor(udev); 660 if (cdesc == NULL) { 661 return (ENXIO); 662 } 663 free_data = 0; 664 665 } else { 666 if (usb2_req_get_config_desc_full(udev, 667 &Giant, &cdesc, M_USBDEV, 668 ugd->ugd_config_index)) { 669 return (ENXIO); 670 } 671 free_data = 1; 672 } 673 674 len = UGETW(cdesc->wTotalLength); 675 if (len > ugd->ugd_maxlen) { 676 len = ugd->ugd_maxlen; 677 } 678 DPRINTFN(6, "len=%u\n", len); 679 680 ugd->ugd_actlen = len; 681 ugd->ugd_offset = 0; 682 683 error = copyout(cdesc, ugd->ugd_data, len); 684 685 if (free_data) { 686 free(cdesc, M_USBDEV); 687 } 688 return (error); 689} 690 691static int 692ugen_get_sdesc(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 693{ 694 void *ptr = f->udev->bus->scratch[0].data; 695 uint16_t size = sizeof(f->udev->bus->scratch[0].data); 696 int error; 697 698 if (usb2_req_get_string_desc(f->udev, &Giant, ptr, 699 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 700 error = EINVAL; 701 } else { 702 703 if (size > ((uint8_t *)ptr)[0]) { 704 size = ((uint8_t *)ptr)[0]; 705 } 706 if (size > ugd->ugd_maxlen) { 707 size = ugd->ugd_maxlen; 708 } 709 ugd->ugd_actlen = size; 710 ugd->ugd_offset = 0; 711 712 error = copyout(ptr, ugd->ugd_data, size); 713 } 714 return (error); 715} 716 717/*------------------------------------------------------------------------* 718 * ugen_get_iface_driver 719 * 720 * This function generates an USB interface description for userland. 721 * 722 * Returns: 723 * 0: Success 724 * Else: Failure 725 *------------------------------------------------------------------------*/ 726static int 727ugen_get_iface_driver(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 728{ 729 struct usb2_device *udev = f->udev; 730 struct usb2_interface *iface; 731 const char *ptr; 732 const char *desc; 733 unsigned int len; 734 unsigned int maxlen; 735 char buf[128]; 736 int error; 737 738 DPRINTFN(6, "\n"); 739 740 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 741 /* userland pointer should not be zero */ 742 return (EINVAL); 743 } 744 745 iface = usb2_get_iface(udev, ugd->ugd_iface_index); 746 if ((iface == NULL) || (iface->idesc == NULL)) { 747 /* invalid interface index */ 748 return (EINVAL); 749 } 750 751 /* read out device nameunit string, if any */ 752 if ((iface->subdev != NULL) && 753 device_is_attached(iface->subdev) && 754 (ptr = device_get_nameunit(iface->subdev)) && 755 (desc = device_get_desc(iface->subdev))) { 756 757 /* print description */ 758 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 759 760 /* range checks */ 761 maxlen = ugd->ugd_maxlen - 1; 762 len = strlen(buf); 763 if (len > maxlen) 764 len = maxlen; 765 766 /* update actual length, including terminating zero */ 767 ugd->ugd_actlen = len + 1; 768 769 /* copy out interface description */ 770 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 771 } else { 772 /* zero length string is default */ 773 error = copyout("", ugd->ugd_data, 1); 774 } 775 return (error); 776} 777 778/*------------------------------------------------------------------------* 779 * usb2_gen_fill_deviceinfo 780 * 781 * This function dumps information about an USB device to the 782 * structure pointed to by the "di" argument. 783 * 784 * Returns: 785 * 0: Success 786 * Else: Failure 787 *------------------------------------------------------------------------*/ 788static int 789usb2_gen_fill_deviceinfo(struct usb2_fifo *f, struct usb2_device_info *di) 790{ 791 struct usb2_device *udev; 792 struct usb2_device *hub; 793 794 udev = f->udev; 795 796 bzero(di, sizeof(di[0])); 797 798 di->udi_bus = device_get_unit(udev->bus->bdev); 799 di->udi_addr = udev->address; 800 di->udi_index = udev->device_index; 801 strlcpy(di->udi_serial, udev->serial, 802 sizeof(di->udi_serial)); 803 strlcpy(di->udi_vendor, udev->manufacturer, 804 sizeof(di->udi_vendor)); 805 strlcpy(di->udi_product, udev->product, 806 sizeof(di->udi_product)); 807 usb2_printBCD(di->udi_release, sizeof(di->udi_release), 808 UGETW(udev->ddesc.bcdDevice)); 809 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 810 di->udi_productNo = UGETW(udev->ddesc.idProduct); 811 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 812 di->udi_class = udev->ddesc.bDeviceClass; 813 di->udi_subclass = udev->ddesc.bDeviceSubClass; 814 di->udi_protocol = udev->ddesc.bDeviceProtocol; 815 di->udi_config_no = udev->curr_config_no; 816 di->udi_config_index = udev->curr_config_index; 817 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 818 di->udi_speed = udev->speed; 819 di->udi_mode = udev->flags.usb2_mode; 820 di->udi_power_mode = udev->power_mode; 821 if (udev->flags.suspended) { 822 di->udi_suspended = 1; 823 } else { 824 di->udi_suspended = 0; 825 } 826 827 hub = udev->parent_hub; 828 if (hub) { 829 di->udi_hubaddr = hub->address; 830 di->udi_hubindex = hub->device_index; 831 di->udi_hubport = udev->port_no; 832 } 833 return (0); 834} 835 836/*------------------------------------------------------------------------* 837 * ugen_check_request 838 * 839 * Return values: 840 * 0: Access allowed 841 * Else: No access 842 *------------------------------------------------------------------------*/ 843static int 844ugen_check_request(struct usb2_device *udev, struct usb2_device_request *req) 845{ 846 struct usb2_pipe *pipe; 847 int error; 848 849 /* 850 * Avoid requests that would damage the bus integrity: 851 */ 852 if (((req->bmRequestType == UT_WRITE_DEVICE) && 853 (req->bRequest == UR_SET_ADDRESS)) || 854 ((req->bmRequestType == UT_WRITE_DEVICE) && 855 (req->bRequest == UR_SET_CONFIG)) || 856 ((req->bmRequestType == UT_WRITE_INTERFACE) && 857 (req->bRequest == UR_SET_INTERFACE))) { 858 /* 859 * These requests can be useful for testing USB drivers. 860 */ 861 error = priv_check(curthread, PRIV_DRIVER); 862 if (error) { 863 return (error); 864 } 865 } 866 /* 867 * Special case - handle clearing of stall 868 */ 869 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 870 871 pipe = usb2_get_pipe_by_addr(udev, req->wIndex[0]); 872 if (pipe == NULL) { 873 return (EINVAL); 874 } 875 if (usb2_check_thread_perm(udev, curthread, FREAD | FWRITE, 876 pipe->iface_index, req->wIndex[0] & UE_ADDR)) { 877 return (EPERM); 878 } 879 if ((req->bRequest == UR_CLEAR_FEATURE) && 880 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 881 usb2_clear_data_toggle(udev, pipe); 882 } 883 } 884 /* TODO: add more checks to verify the interface index */ 885 886 return (0); 887} 888 889int 890ugen_do_request(struct usb2_fifo *f, struct usb2_ctl_request *ur) 891{ 892 int error; 893 uint16_t len; 894 uint16_t actlen; 895 896 if (ugen_check_request(f->udev, &ur->ucr_request)) { 897 return (EPERM); 898 } 899 len = UGETW(ur->ucr_request.wLength); 900 901 /* check if "ucr_data" is valid */ 902 if (len != 0) { 903 if (ur->ucr_data == NULL) { 904 return (EFAULT); 905 } 906 } 907 /* do the USB request */ 908 error = usb2_do_request_flags 909 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 910 (ur->ucr_flags & USB_SHORT_XFER_OK) | 911 USB_USER_DATA_PTR, &actlen, 912 USB_DEFAULT_TIMEOUT); 913 914 ur->ucr_actlen = actlen; 915 916 if (error) { 917 error = EIO; 918 } 919 return (error); 920} 921 922/*------------------------------------------------------------------------ 923 * ugen_re_enumerate 924 *------------------------------------------------------------------------*/ 925static int 926ugen_re_enumerate(struct usb2_fifo *f) 927{ 928 struct usb2_device *udev = f->udev; 929 int error; 930 931 /* 932 * This request can be useful for testing USB drivers: 933 */ 934 error = priv_check(curthread, PRIV_DRIVER); 935 if (error) { 936 return (error); 937 } 938 /* get the device unconfigured */ 939 error = ugen_set_config(f, USB_UNCONFIG_INDEX); 940 if (error) { 941 return (error); 942 } 943 /* do a bus-reset */ 944 mtx_lock(f->priv_mtx); 945 error = usb2_req_re_enumerate(udev, f->priv_mtx); 946 mtx_unlock(f->priv_mtx); 947 948 if (error) { 949 return (ENXIO); 950 } 951 /* restore configuration to index 0 */ 952 error = ugen_set_config(f, 0); 953 if (error) { 954 return (error); 955 } 956 return (0); 957} 958 959int 960ugen_fs_uninit(struct usb2_fifo *f) 961{ 962 if (f->fs_xfer == NULL) { 963 return (EINVAL); 964 } 965 usb2_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 966 free(f->fs_xfer, M_USB); 967 f->fs_xfer = NULL; 968 f->fs_ep_max = 0; 969 f->fs_ep_ptr = NULL; 970 f->flag_iscomplete = 0; 971 usb2_fifo_free_buffer(f); 972 return (0); 973} 974 975static uint8_t 976ugen_fs_get_complete(struct usb2_fifo *f, uint8_t *pindex) 977{ 978 struct usb2_mbuf *m; 979 980 USB_IF_DEQUEUE(&f->used_q, m); 981 982 if (m) { 983 *pindex = *((uint8_t *)(m->cur_data_ptr)); 984 985 USB_IF_ENQUEUE(&f->free_q, m); 986 987 return (0); /* success */ 988 } else { 989 990 *pindex = 0; /* fix compiler warning */ 991 992 f->flag_iscomplete = 0; 993 } 994 return (1); /* failure */ 995} 996 997static void 998ugen_fs_set_complete(struct usb2_fifo *f, uint8_t index) 999{ 1000 struct usb2_mbuf *m; 1001 1002 USB_IF_DEQUEUE(&f->free_q, m); 1003 1004 if (m == NULL) { 1005 /* can happen during close */ 1006 DPRINTF("out of buffers\n"); 1007 return; 1008 } 1009 USB_MBUF_RESET(m); 1010 1011 *((uint8_t *)(m->cur_data_ptr)) = index; 1012 1013 USB_IF_ENQUEUE(&f->used_q, m); 1014 1015 f->flag_iscomplete = 1; 1016 1017 usb2_fifo_wakeup(f); 1018} 1019 1020static int 1021ugen_fs_copy_in(struct usb2_fifo *f, uint8_t ep_index) 1022{ 1023 struct usb2_device_request *req; 1024 struct usb2_xfer *xfer; 1025 struct usb2_fs_endpoint fs_ep; 1026 void *uaddr; /* userland pointer */ 1027 void *kaddr; 1028 uint32_t offset; 1029 uint32_t length; 1030 uint32_t n; 1031 uint32_t rem; 1032 int error; 1033 uint8_t isread; 1034 1035 if (ep_index >= f->fs_ep_max) { 1036 return (EINVAL); 1037 } 1038 xfer = f->fs_xfer[ep_index]; 1039 if (xfer == NULL) { 1040 return (EINVAL); 1041 } 1042 mtx_lock(f->priv_mtx); 1043 if (usb2_transfer_pending(xfer)) { 1044 mtx_unlock(f->priv_mtx); 1045 return (EBUSY); /* should not happen */ 1046 } 1047 mtx_unlock(f->priv_mtx); 1048 1049 error = copyin(f->fs_ep_ptr + 1050 ep_index, &fs_ep, sizeof(fs_ep)); 1051 if (error) { 1052 return (error); 1053 } 1054 /* security checks */ 1055 1056 if (fs_ep.nFrames > xfer->max_frame_count) { 1057 xfer->error = USB_ERR_INVAL; 1058 goto complete; 1059 } 1060 if (fs_ep.nFrames == 0) { 1061 xfer->error = USB_ERR_INVAL; 1062 goto complete; 1063 } 1064 error = copyin(fs_ep.ppBuffer, 1065 &uaddr, sizeof(uaddr)); 1066 if (error) { 1067 return (error); 1068 } 1069 /* reset first frame */ 1070 usb2_set_frame_offset(xfer, 0, 0); 1071 1072 if (xfer->flags_int.control_xfr) { 1073 1074 req = xfer->frbuffers[0].buffer; 1075 1076 error = copyin(fs_ep.pLength, 1077 &length, sizeof(length)); 1078 if (error) { 1079 return (error); 1080 } 1081 if (length >= sizeof(*req)) { 1082 xfer->error = USB_ERR_INVAL; 1083 goto complete; 1084 } 1085 if (length != 0) { 1086 error = copyin(uaddr, req, length); 1087 if (error) { 1088 return (error); 1089 } 1090 } 1091 if (ugen_check_request(f->udev, req)) { 1092 xfer->error = USB_ERR_INVAL; 1093 goto complete; 1094 } 1095 xfer->frlengths[0] = length; 1096 1097 /* Host mode only ! */ 1098 if ((req->bmRequestType & 1099 (UT_READ | UT_WRITE)) == UT_READ) { 1100 isread = 1; 1101 } else { 1102 isread = 0; 1103 } 1104 n = 1; 1105 offset = sizeof(*req); 1106 1107 } else { 1108 /* Device and Host mode */ 1109 if (USB_GET_DATA_ISREAD(xfer)) { 1110 isread = 1; 1111 } else { 1112 isread = 0; 1113 } 1114 n = 0; 1115 offset = 0; 1116 } 1117 1118 rem = xfer->max_data_length; 1119 xfer->nframes = fs_ep.nFrames; 1120 xfer->timeout = fs_ep.timeout; 1121 if (xfer->timeout > 65535) { 1122 xfer->timeout = 65535; 1123 } 1124 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1125 xfer->flags.short_xfer_ok = 1; 1126 else 1127 xfer->flags.short_xfer_ok = 0; 1128 1129 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1130 xfer->flags.short_frames_ok = 1; 1131 else 1132 xfer->flags.short_frames_ok = 0; 1133 1134 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1135 xfer->flags.force_short_xfer = 1; 1136 else 1137 xfer->flags.force_short_xfer = 0; 1138 1139 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1140 xfer->flags.stall_pipe = 1; 1141 else 1142 xfer->flags.stall_pipe = 0; 1143 1144 for (; n != xfer->nframes; n++) { 1145 1146 error = copyin(fs_ep.pLength + n, 1147 &length, sizeof(length)); 1148 if (error) { 1149 break; 1150 } 1151 xfer->frlengths[n] = length; 1152 1153 if (length > rem) { 1154 xfer->error = USB_ERR_INVAL; 1155 goto complete; 1156 } 1157 rem -= length; 1158 1159 if (!isread) { 1160 1161 /* we need to know the source buffer */ 1162 error = copyin(fs_ep.ppBuffer + n, 1163 &uaddr, sizeof(uaddr)); 1164 if (error) { 1165 break; 1166 } 1167 if (xfer->flags_int.isochronous_xfr) { 1168 /* get kernel buffer address */ 1169 kaddr = xfer->frbuffers[0].buffer; 1170 kaddr = USB_ADD_BYTES(kaddr, offset); 1171 } else { 1172 /* set current frame offset */ 1173 usb2_set_frame_offset(xfer, offset, n); 1174 1175 /* get kernel buffer address */ 1176 kaddr = xfer->frbuffers[n].buffer; 1177 } 1178 1179 /* move data */ 1180 error = copyin(uaddr, kaddr, length); 1181 if (error) { 1182 break; 1183 } 1184 } 1185 offset += length; 1186 } 1187 return (error); 1188 1189complete: 1190 mtx_lock(f->priv_mtx); 1191 ugen_fs_set_complete(f, ep_index); 1192 mtx_unlock(f->priv_mtx); 1193 return (0); 1194} 1195 1196static int 1197ugen_fs_copy_out(struct usb2_fifo *f, uint8_t ep_index) 1198{ 1199 struct usb2_device_request *req; 1200 struct usb2_xfer *xfer; 1201 struct usb2_fs_endpoint fs_ep; 1202 struct usb2_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1203 void *uaddr; /* userland ptr */ 1204 void *kaddr; 1205 uint32_t offset; 1206 uint32_t length; 1207 uint32_t temp; 1208 uint32_t n; 1209 uint32_t rem; 1210 int error; 1211 uint8_t isread; 1212 1213 if (ep_index >= f->fs_ep_max) { 1214 return (EINVAL); 1215 } 1216 xfer = f->fs_xfer[ep_index]; 1217 if (xfer == NULL) { 1218 return (EINVAL); 1219 } 1220 mtx_lock(f->priv_mtx); 1221 if (usb2_transfer_pending(xfer)) { 1222 mtx_unlock(f->priv_mtx); 1223 return (EBUSY); /* should not happen */ 1224 } 1225 mtx_unlock(f->priv_mtx); 1226 1227 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1228 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1229 if (error) { 1230 return (error); 1231 } 1232 fs_ep.status = xfer->error; 1233 fs_ep.aFrames = xfer->aframes; 1234 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1235 if (xfer->error) { 1236 goto complete; 1237 } 1238 if (xfer->flags_int.control_xfr) { 1239 req = xfer->frbuffers[0].buffer; 1240 1241 /* Host mode only ! */ 1242 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1243 isread = 1; 1244 } else { 1245 isread = 0; 1246 } 1247 if (xfer->nframes == 0) 1248 n = 0; /* should never happen */ 1249 else 1250 n = 1; 1251 } else { 1252 /* Device and Host mode */ 1253 if (USB_GET_DATA_ISREAD(xfer)) { 1254 isread = 1; 1255 } else { 1256 isread = 0; 1257 } 1258 n = 0; 1259 } 1260 1261 /* Update lengths and copy out data */ 1262 1263 rem = xfer->max_data_length; 1264 offset = 0; 1265 1266 for (; n != xfer->nframes; n++) { 1267 1268 /* get initial length into "temp" */ 1269 error = copyin(fs_ep.pLength + n, 1270 &temp, sizeof(temp)); 1271 if (error) { 1272 return (error); 1273 } 1274 if (temp > rem) { 1275 /* the userland length has been corrupted */ 1276 DPRINTF("corrupt userland length " 1277 "%u > %u\n", temp, rem); 1278 fs_ep.status = USB_ERR_INVAL; 1279 goto complete; 1280 } 1281 rem -= temp; 1282 1283 /* get actual transfer length */ 1284 length = xfer->frlengths[n]; 1285 if (length > temp) { 1286 /* data overflow */ 1287 fs_ep.status = USB_ERR_INVAL; 1288 DPRINTF("data overflow %u > %u\n", 1289 length, temp); 1290 goto complete; 1291 } 1292 if (isread) { 1293 1294 /* we need to know the destination buffer */ 1295 error = copyin(fs_ep.ppBuffer + n, 1296 &uaddr, sizeof(uaddr)); 1297 if (error) { 1298 return (error); 1299 } 1300 if (xfer->flags_int.isochronous_xfr) { 1301 /* only one frame buffer */ 1302 kaddr = USB_ADD_BYTES( 1303 xfer->frbuffers[0].buffer, offset); 1304 } else { 1305 /* multiple frame buffers */ 1306 kaddr = xfer->frbuffers[n].buffer; 1307 } 1308 1309 /* move data */ 1310 error = copyout(kaddr, uaddr, length); 1311 if (error) { 1312 return (error); 1313 } 1314 } 1315 /* 1316 * Update offset according to initial length, which is 1317 * needed by isochronous transfers! 1318 */ 1319 offset += temp; 1320 1321 /* update length */ 1322 error = copyout(&length, 1323 fs_ep.pLength + n, sizeof(length)); 1324 if (error) { 1325 return (error); 1326 } 1327 } 1328 1329complete: 1330 /* update "aFrames" */ 1331 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1332 sizeof(fs_ep.aFrames)); 1333 if (error) 1334 goto done; 1335 1336 /* update "isoc_time_complete" */ 1337 error = copyout(&fs_ep.isoc_time_complete, 1338 &fs_ep_uptr->isoc_time_complete, 1339 sizeof(fs_ep.isoc_time_complete)); 1340 if (error) 1341 goto done; 1342 /* update "status" */ 1343 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1344 sizeof(fs_ep.status)); 1345done: 1346 return (error); 1347} 1348 1349static uint8_t 1350ugen_fifo_in_use(struct usb2_fifo *f, int fflags) 1351{ 1352 struct usb2_fifo *f_rx; 1353 struct usb2_fifo *f_tx; 1354 1355 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1356 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1357 1358 if ((fflags & FREAD) && f_rx && 1359 (f_rx->xfer[0] || f_rx->xfer[1])) { 1360 return (1); /* RX FIFO in use */ 1361 } 1362 if ((fflags & FWRITE) && f_tx && 1363 (f_tx->xfer[0] || f_tx->xfer[1])) { 1364 return (1); /* TX FIFO in use */ 1365 } 1366 return (0); /* not in use */ 1367} 1368 1369static int 1370ugen_ioctl(struct usb2_fifo *f, u_long cmd, void *addr, int fflags, 1371 struct thread *td) 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 error = usb2_check_thread_perm(f->udev, curthread, fflags, 1462 iface_index, u.popen->ep_no); 1463 if (error) { 1464 break; 1465 } 1466 bzero(usb2_config, sizeof(usb2_config)); 1467 1468 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1469 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1470 usb2_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1471 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 1472 usb2_config[0].mh.flags.proxy_buffer = 1; 1473 usb2_config[0].mh.callback = &ugen_default_fs_callback; 1474 usb2_config[0].mh.timeout = 0; /* no timeout */ 1475 usb2_config[0].mh.frames = u.popen->max_frames; 1476 usb2_config[0].mh.bufsize = u.popen->max_bufsize; 1477 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 1478 1479 if (usb2_config[0].type == UE_CONTROL) { 1480 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1481 error = EINVAL; 1482 break; 1483 } 1484 } else { 1485 1486 isread = ((usb2_config[0].endpoint & 1487 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1488 1489 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1490 isread = !isread; 1491 } 1492 /* check permissions */ 1493 if (isread) { 1494 if (!(fflags & FREAD)) { 1495 error = EPERM; 1496 break; 1497 } 1498 } else { 1499 if (!(fflags & FWRITE)) { 1500 error = EPERM; 1501 break; 1502 } 1503 } 1504 } 1505 error = usb2_transfer_setup(f->udev, &iface_index, 1506 f->fs_xfer + u.popen->ep_index, usb2_config, 1, 1507 f, f->priv_mtx); 1508 if (error == 0) { 1509 /* update maximums */ 1510 u.popen->max_packet_length = 1511 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1512 u.popen->max_bufsize = 1513 f->fs_xfer[u.popen->ep_index]->max_data_length; 1514 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1515 ((uint8_t *)0) + u.popen->ep_index; 1516 } else { 1517 error = ENOMEM; 1518 } 1519 break; 1520 1521 case USB_FS_CLOSE: 1522 if (u.pclose->ep_index >= f->fs_ep_max) { 1523 error = EINVAL; 1524 break; 1525 } 1526 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1527 error = EINVAL; 1528 break; 1529 } 1530 usb2_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1531 break; 1532 1533 case USB_FS_CLEAR_STALL_SYNC: 1534 if (u.pstall->ep_index >= f->fs_ep_max) { 1535 error = EINVAL; 1536 break; 1537 } 1538 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1539 error = EINVAL; 1540 break; 1541 } 1542 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1543 error = EINVAL; 1544 break; 1545 } 1546 mtx_lock(f->priv_mtx); 1547 error = usb2_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1548 mtx_unlock(f->priv_mtx); 1549 1550 if (error) { 1551 return (EBUSY); 1552 } 1553 pipe = f->fs_xfer[u.pstall->ep_index]->pipe; 1554 1555 /* setup a clear-stall packet */ 1556 req.bmRequestType = UT_WRITE_ENDPOINT; 1557 req.bRequest = UR_CLEAR_FEATURE; 1558 USETW(req.wValue, UF_ENDPOINT_HALT); 1559 req.wIndex[0] = pipe->edesc->bEndpointAddress; 1560 req.wIndex[1] = 0; 1561 USETW(req.wLength, 0); 1562 1563 error = usb2_do_request(f->udev, NULL, &req, NULL); 1564 if (error == 0) { 1565 usb2_clear_data_toggle(f->udev, pipe); 1566 } else { 1567 error = ENXIO; 1568 } 1569 break; 1570 1571 default: 1572 error = ENOIOCTL; 1573 break; 1574 } 1575 1576 DPRINTFN(6, "error=%d\n", error); 1577 1578 return (error); 1579} 1580 1581static int 1582ugen_set_short_xfer(struct usb2_fifo *f, void *addr) 1583{ 1584 uint8_t t; 1585 1586 if (*(int *)addr) 1587 t = 1; 1588 else 1589 t = 0; 1590 1591 if (f->flag_short == t) { 1592 /* same value like before - accept */ 1593 return (0); 1594 } 1595 if (f->xfer[0] || f->xfer[1]) { 1596 /* cannot change this during transfer */ 1597 return (EBUSY); 1598 } 1599 f->flag_short = t; 1600 return (0); 1601} 1602 1603static int 1604ugen_set_timeout(struct usb2_fifo *f, void *addr) 1605{ 1606 f->timeout = *(int *)addr; 1607 if (f->timeout > 65535) { 1608 /* limit user input */ 1609 f->timeout = 65535; 1610 } 1611 return (0); 1612} 1613 1614static int 1615ugen_get_frame_size(struct usb2_fifo *f, void *addr) 1616{ 1617 if (f->xfer[0]) { 1618 *(int *)addr = f->xfer[0]->max_frame_size; 1619 } else { 1620 return (EINVAL); 1621 } 1622 return (0); 1623} 1624 1625static int 1626ugen_set_buffer_size(struct usb2_fifo *f, void *addr) 1627{ 1628 uint32_t t; 1629 1630 if (*(int *)addr < 1024) 1631 t = 1024; 1632 else if (*(int *)addr < (256 * 1024)) 1633 t = *(int *)addr; 1634 else 1635 t = 256 * 1024; 1636 1637 if (f->bufsize == t) { 1638 /* same value like before - accept */ 1639 return (0); 1640 } 1641 if (f->xfer[0] || f->xfer[1]) { 1642 /* cannot change this during transfer */ 1643 return (EBUSY); 1644 } 1645 f->bufsize = t; 1646 return (0); 1647} 1648 1649static int 1650ugen_get_buffer_size(struct usb2_fifo *f, void *addr) 1651{ 1652 *(int *)addr = f->bufsize; 1653 return (0); 1654} 1655 1656static int 1657ugen_get_iface_desc(struct usb2_fifo *f, 1658 struct usb2_interface_descriptor *idesc) 1659{ 1660 struct usb2_interface *iface; 1661 1662 iface = usb2_get_iface(f->udev, f->iface_index); 1663 if (iface && iface->idesc) { 1664 *idesc = *(iface->idesc); 1665 } else { 1666 return (EIO); 1667 } 1668 return (0); 1669} 1670 1671static int 1672ugen_get_endpoint_desc(struct usb2_fifo *f, 1673 struct usb2_endpoint_descriptor *ed) 1674{ 1675 struct usb2_pipe *pipe; 1676 1677 pipe = f->priv_sc0; 1678 1679 if (pipe && pipe->edesc) { 1680 *ed = *pipe->edesc; 1681 } else { 1682 return (EINVAL); 1683 } 1684 return (0); 1685} 1686 1687static int 1688ugen_set_power_mode(struct usb2_fifo *f, int mode) 1689{ 1690 struct usb2_device *udev = f->udev; 1691 int err; 1692 uint8_t old_mode; 1693 1694 if ((udev == NULL) || 1695 (udev->parent_hub == NULL)) { 1696 return (EINVAL); 1697 } 1698 err = priv_check(curthread, PRIV_ROOT); 1699 if (err) 1700 return (err); 1701 1702 /* get old power mode */ 1703 old_mode = udev->power_mode; 1704 1705 /* if no change, then just return */ 1706 if (old_mode == mode) 1707 return (0); 1708 1709 switch (mode) { 1710 case USB_POWER_MODE_OFF: 1711 /* get the device unconfigured */ 1712 err = ugen_set_config(f, USB_UNCONFIG_INDEX); 1713 if (err) { 1714 DPRINTFN(0, "Could not unconfigure " 1715 "device (ignored)\n"); 1716 } 1717 1718 /* clear port enable */ 1719 err = usb2_req_clear_port_feature(udev->parent_hub, 1720 NULL, udev->port_no, UHF_PORT_ENABLE); 1721 break; 1722 1723 case USB_POWER_MODE_ON: 1724 case USB_POWER_MODE_SAVE: 1725 break; 1726 1727 case USB_POWER_MODE_RESUME: 1728 err = usb2_req_clear_port_feature(udev->parent_hub, 1729 NULL, udev->port_no, UHF_PORT_SUSPEND); 1730 mode = USB_POWER_MODE_SAVE; 1731 break; 1732 1733 case USB_POWER_MODE_SUSPEND: 1734 err = usb2_req_set_port_feature(udev->parent_hub, 1735 NULL, udev->port_no, UHF_PORT_SUSPEND); 1736 mode = USB_POWER_MODE_SAVE; 1737 break; 1738 1739 default: 1740 return (EINVAL); 1741 } 1742 1743 if (err) 1744 return (ENXIO); /* I/O failure */ 1745 1746 /* if we are powered off we need to re-enumerate first */ 1747 if (old_mode == USB_POWER_MODE_OFF) { 1748 err = ugen_re_enumerate(f); 1749 if (err) 1750 return (err); 1751 } 1752 1753 /* set new power mode */ 1754 usb2_set_power_mode(udev, mode); 1755 1756 return (0); /* success */ 1757} 1758 1759static int 1760ugen_get_power_mode(struct usb2_fifo *f) 1761{ 1762 struct usb2_device *udev = f->udev; 1763 1764 if ((udev == NULL) || 1765 (udev->parent_hub == NULL)) { 1766 return (USB_POWER_MODE_ON); 1767 } 1768 return (udev->power_mode); 1769} 1770 1771static int 1772ugen_do_port_feature(struct usb2_fifo *f, uint8_t port_no, 1773 uint8_t set, uint16_t feature) 1774{ 1775 struct usb2_device *udev = f->udev; 1776 struct usb2_hub *hub; 1777 int err; 1778 1779 err = priv_check(curthread, PRIV_ROOT); 1780 if (err) { 1781 return (err); 1782 } 1783 if (port_no == 0) { 1784 return (EINVAL); 1785 } 1786 if ((udev == NULL) || 1787 (udev->hub == NULL)) { 1788 return (EINVAL); 1789 } 1790 hub = udev->hub; 1791 1792 if (port_no > hub->nports) { 1793 return (EINVAL); 1794 } 1795 if (set) 1796 err = usb2_req_set_port_feature(udev, 1797 NULL, port_no, feature); 1798 else 1799 err = usb2_req_clear_port_feature(udev, 1800 NULL, port_no, feature); 1801 1802 if (err) 1803 return (ENXIO); /* failure */ 1804 1805 return (0); /* success */ 1806} 1807 1808static int 1809ugen_iface_ioctl(struct usb2_fifo *f, u_long cmd, void *addr, int fflags) 1810{ 1811 struct usb2_fifo *f_rx; 1812 struct usb2_fifo *f_tx; 1813 int error = 0; 1814 1815 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1816 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1817 1818 switch (cmd) { 1819 case USB_SET_RX_SHORT_XFER: 1820 if (fflags & FREAD) { 1821 error = ugen_set_short_xfer(f_rx, addr); 1822 } else { 1823 error = EINVAL; 1824 } 1825 break; 1826 1827 case USB_SET_TX_FORCE_SHORT: 1828 if (fflags & FWRITE) { 1829 error = ugen_set_short_xfer(f_tx, addr); 1830 } else { 1831 error = EINVAL; 1832 } 1833 break; 1834 1835 case USB_SET_RX_TIMEOUT: 1836 if (fflags & FREAD) { 1837 error = ugen_set_timeout(f_rx, addr); 1838 } else { 1839 error = EINVAL; 1840 } 1841 break; 1842 1843 case USB_SET_TX_TIMEOUT: 1844 if (fflags & FWRITE) { 1845 error = ugen_set_timeout(f_tx, addr); 1846 } else { 1847 error = EINVAL; 1848 } 1849 break; 1850 1851 case USB_GET_RX_FRAME_SIZE: 1852 if (fflags & FREAD) { 1853 error = ugen_get_frame_size(f_rx, addr); 1854 } else { 1855 error = EINVAL; 1856 } 1857 break; 1858 1859 case USB_GET_TX_FRAME_SIZE: 1860 if (fflags & FWRITE) { 1861 error = ugen_get_frame_size(f_tx, addr); 1862 } else { 1863 error = EINVAL; 1864 } 1865 break; 1866 1867 case USB_SET_RX_BUFFER_SIZE: 1868 if (fflags & FREAD) { 1869 error = ugen_set_buffer_size(f_rx, addr); 1870 } else { 1871 error = EINVAL; 1872 } 1873 break; 1874 1875 case USB_SET_TX_BUFFER_SIZE: 1876 if (fflags & FWRITE) { 1877 error = ugen_set_buffer_size(f_tx, addr); 1878 } else { 1879 error = EINVAL; 1880 } 1881 break; 1882 1883 case USB_GET_RX_BUFFER_SIZE: 1884 if (fflags & FREAD) { 1885 error = ugen_get_buffer_size(f_rx, addr); 1886 } else { 1887 error = EINVAL; 1888 } 1889 break; 1890 1891 case USB_GET_TX_BUFFER_SIZE: 1892 if (fflags & FWRITE) { 1893 error = ugen_get_buffer_size(f_tx, addr); 1894 } else { 1895 error = EINVAL; 1896 } 1897 break; 1898 1899 case USB_GET_RX_INTERFACE_DESC: 1900 if (fflags & FREAD) { 1901 error = ugen_get_iface_desc(f_rx, addr); 1902 } else { 1903 error = EINVAL; 1904 } 1905 break; 1906 1907 case USB_GET_TX_INTERFACE_DESC: 1908 if (fflags & FWRITE) { 1909 error = ugen_get_iface_desc(f_tx, addr); 1910 } else { 1911 error = EINVAL; 1912 } 1913 break; 1914 1915 case USB_GET_RX_ENDPOINT_DESC: 1916 if (fflags & FREAD) { 1917 error = ugen_get_endpoint_desc(f_rx, addr); 1918 } else { 1919 error = EINVAL; 1920 } 1921 break; 1922 1923 case USB_GET_TX_ENDPOINT_DESC: 1924 if (fflags & FWRITE) { 1925 error = ugen_get_endpoint_desc(f_tx, addr); 1926 } else { 1927 error = EINVAL; 1928 } 1929 break; 1930 1931 case USB_SET_RX_STALL_FLAG: 1932 if ((fflags & FREAD) && (*(int *)addr)) { 1933 f_rx->flag_stall = 1; 1934 } 1935 break; 1936 1937 case USB_SET_TX_STALL_FLAG: 1938 if ((fflags & FWRITE) && (*(int *)addr)) { 1939 f_tx->flag_stall = 1; 1940 } 1941 break; 1942 1943 default: 1944 error = ENOIOCTL; 1945 break; 1946 } 1947 return (error); 1948} 1949 1950static int 1951ugen_ioctl_post(struct usb2_fifo *f, u_long cmd, void *addr, int fflags, 1952 struct thread *td) 1953{ 1954 union { 1955 struct usb2_interface_descriptor *idesc; 1956 struct usb2_alt_interface *ai; 1957 struct usb2_device_descriptor *ddesc; 1958 struct usb2_config_descriptor *cdesc; 1959 struct usb2_device_stats *stat; 1960 struct usb2_fs_init *pinit; 1961 struct usb2_fs_uninit *puninit; 1962 uint32_t *ptime; 1963 void *addr; 1964 int *pint; 1965 } u; 1966 struct usb2_device_descriptor *dtemp; 1967 struct usb2_config_descriptor *ctemp; 1968 struct usb2_interface *iface; 1969 int error = 0; 1970 uint8_t n; 1971 1972 u.addr = addr; 1973 1974 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1975 1976 switch (cmd) { 1977 case USB_DISCOVER: 1978 usb2_needs_explore_all(); 1979 break; 1980 1981 case USB_SETDEBUG: 1982 if (!(fflags & FWRITE)) { 1983 error = EPERM; 1984 break; 1985 } 1986 usb2_debug = *(int *)addr; 1987 break; 1988 1989 case USB_GET_CONFIG: 1990 *(int *)addr = f->udev->curr_config_index; 1991 break; 1992 1993 case USB_SET_CONFIG: 1994 if (!(fflags & FWRITE)) { 1995 error = EPERM; 1996 break; 1997 } 1998 error = ugen_set_config(f, *(int *)addr); 1999 break; 2000 2001 case USB_GET_ALTINTERFACE: 2002 iface = usb2_get_iface(f->udev, 2003 u.ai->uai_interface_index); 2004 if (iface && iface->idesc) { 2005 u.ai->uai_alt_index = iface->alt_index; 2006 } else { 2007 error = EINVAL; 2008 } 2009 break; 2010 2011 case USB_SET_ALTINTERFACE: 2012 if (!(fflags & FWRITE)) { 2013 error = EPERM; 2014 break; 2015 } 2016 error = ugen_set_interface(f, 2017 u.ai->uai_interface_index, u.ai->uai_alt_index); 2018 break; 2019 2020 case USB_GET_DEVICE_DESC: 2021 dtemp = usb2_get_device_descriptor(f->udev); 2022 if (!dtemp) { 2023 error = EIO; 2024 break; 2025 } 2026 *u.ddesc = *dtemp; 2027 break; 2028 2029 case USB_GET_CONFIG_DESC: 2030 ctemp = usb2_get_config_descriptor(f->udev); 2031 if (!ctemp) { 2032 error = EIO; 2033 break; 2034 } 2035 *u.cdesc = *ctemp; 2036 break; 2037 2038 case USB_GET_FULL_DESC: 2039 error = ugen_get_cdesc(f, addr); 2040 break; 2041 2042 case USB_GET_STRING_DESC: 2043 error = ugen_get_sdesc(f, addr); 2044 break; 2045 2046 case USB_GET_IFACE_DRIVER: 2047 error = ugen_get_iface_driver(f, addr); 2048 break; 2049 2050 case USB_REQUEST: 2051 case USB_DO_REQUEST: 2052 if (!(fflags & FWRITE)) { 2053 error = EPERM; 2054 break; 2055 } 2056 error = ugen_do_request(f, addr); 2057 break; 2058 2059 case USB_DEVICEINFO: 2060 case USB_GET_DEVICEINFO: 2061 error = usb2_gen_fill_deviceinfo(f, addr); 2062 break; 2063 2064 case USB_DEVICESTATS: 2065 for (n = 0; n != 4; n++) { 2066 2067 u.stat->uds_requests_fail[n] = 2068 f->udev->bus->stats_err.uds_requests[n]; 2069 2070 u.stat->uds_requests_ok[n] = 2071 f->udev->bus->stats_ok.uds_requests[n]; 2072 } 2073 break; 2074 2075 case USB_DEVICEENUMERATE: 2076 error = ugen_re_enumerate(f); 2077 break; 2078 2079 case USB_GET_PLUGTIME: 2080 *u.ptime = f->udev->plugtime; 2081 break; 2082 2083 case USB_CLAIM_INTERFACE: 2084 case USB_RELEASE_INTERFACE: 2085 /* TODO */ 2086 break; 2087 2088 case USB_IFACE_DRIVER_ACTIVE: 2089 /* TODO */ 2090 *u.pint = 0; 2091 break; 2092 2093 case USB_IFACE_DRIVER_DETACH: 2094 /* TODO */ 2095 error = priv_check(curthread, PRIV_DRIVER); 2096 if (error) { 2097 break; 2098 } 2099 error = EINVAL; 2100 break; 2101 2102 case USB_SET_POWER_MODE: 2103 error = ugen_set_power_mode(f, *u.pint); 2104 break; 2105 2106 case USB_GET_POWER_MODE: 2107 *u.pint = ugen_get_power_mode(f); 2108 break; 2109 2110 case USB_SET_PORT_ENABLE: 2111 error = ugen_do_port_feature(f, 2112 *u.pint, 1, UHF_PORT_ENABLE); 2113 break; 2114 2115 case USB_SET_PORT_DISABLE: 2116 error = ugen_do_port_feature(f, 2117 *u.pint, 0, UHF_PORT_ENABLE); 2118 break; 2119 2120 case USB_FS_INIT: 2121 /* verify input parameters */ 2122 if (u.pinit->pEndpoints == NULL) { 2123 error = EINVAL; 2124 break; 2125 } 2126 if (u.pinit->ep_index_max > 127) { 2127 error = EINVAL; 2128 break; 2129 } 2130 if (u.pinit->ep_index_max == 0) { 2131 error = EINVAL; 2132 break; 2133 } 2134 if (f->fs_xfer != NULL) { 2135 error = EBUSY; 2136 break; 2137 } 2138 if (f->dev_ep_index != 0) { 2139 error = EINVAL; 2140 break; 2141 } 2142 if (ugen_fifo_in_use(f, fflags)) { 2143 error = EBUSY; 2144 break; 2145 } 2146 error = usb2_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2147 if (error) { 2148 break; 2149 } 2150 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2151 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2152 if (f->fs_xfer == NULL) { 2153 usb2_fifo_free_buffer(f); 2154 error = ENOMEM; 2155 break; 2156 } 2157 f->fs_ep_max = u.pinit->ep_index_max; 2158 f->fs_ep_ptr = u.pinit->pEndpoints; 2159 break; 2160 2161 case USB_FS_UNINIT: 2162 if (u.puninit->dummy != 0) { 2163 error = EINVAL; 2164 break; 2165 } 2166 error = ugen_fs_uninit(f); 2167 break; 2168 2169 default: 2170 mtx_lock(f->priv_mtx); 2171 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2172 mtx_unlock(f->priv_mtx); 2173 break; 2174 } 2175 DPRINTFN(6, "error=%d\n", error); 2176 return (error); 2177} 2178 2179static void 2180ugen_default_fs_callback(struct usb2_xfer *xfer) 2181{ 2182 ; /* workaround for a bug in "indent" */ 2183 2184 DPRINTF("st=%u alen=%u aframes=%u\n", 2185 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2186 2187 switch (USB_GET_STATE(xfer)) { 2188 case USB_ST_SETUP: 2189 usb2_start_hardware(xfer); 2190 break; 2191 default: 2192 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2193 break; 2194 } 2195} 2196