usb_generic.c revision 356395
1/* $FreeBSD: stable/11/sys/dev/usb/usb_generic.c 356395 2020-01-06 09:10:13Z hselasky $ */ 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#ifdef USB_GLOBAL_INCLUDE_FILE 28#include USB_GLOBAL_INCLUDE_FILE 29#else 30#include <sys/stdint.h> 31#include <sys/stddef.h> 32#include <sys/param.h> 33#include <sys/queue.h> 34#include <sys/types.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> 37#include <sys/bus.h> 38#include <sys/module.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <sys/condvar.h> 42#include <sys/sysctl.h> 43#include <sys/sx.h> 44#include <sys/unistd.h> 45#include <sys/callout.h> 46#include <sys/malloc.h> 47#include <sys/priv.h> 48#include <sys/conf.h> 49#include <sys/fcntl.h> 50 51#include <dev/usb/usb.h> 52#include <dev/usb/usb_ioctl.h> 53#include <dev/usb/usbdi.h> 54#include <dev/usb/usbdi_util.h> 55 56#define USB_DEBUG_VAR ugen_debug 57 58#include <dev/usb/usb_core.h> 59#include <dev/usb/usb_dev.h> 60#include <dev/usb/usb_mbuf.h> 61#include <dev/usb/usb_process.h> 62#include <dev/usb/usb_device.h> 63#include <dev/usb/usb_debug.h> 64#include <dev/usb/usb_request.h> 65#include <dev/usb/usb_busdma.h> 66#include <dev/usb/usb_util.h> 67#include <dev/usb/usb_hub.h> 68#include <dev/usb/usb_generic.h> 69#include <dev/usb/usb_transfer.h> 70 71#include <dev/usb/usb_controller.h> 72#include <dev/usb/usb_bus.h> 73#endif /* USB_GLOBAL_INCLUDE_FILE */ 74 75#if USB_HAVE_UGEN 76 77/* defines */ 78 79#define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 80#define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 81#define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 82 83/* function prototypes */ 84 85static usb_callback_t ugen_read_clear_stall_callback; 86static usb_callback_t ugen_write_clear_stall_callback; 87static usb_callback_t ugen_ctrl_read_callback; 88static usb_callback_t ugen_ctrl_write_callback; 89static usb_callback_t ugen_isoc_read_callback; 90static usb_callback_t ugen_isoc_write_callback; 91static usb_callback_t ugen_ctrl_fs_callback; 92 93static usb_fifo_open_t ugen_open; 94static usb_fifo_close_t ugen_close; 95static usb_fifo_ioctl_t ugen_ioctl; 96static usb_fifo_ioctl_t ugen_ioctl_post; 97static usb_fifo_cmd_t ugen_start_read; 98static usb_fifo_cmd_t ugen_start_write; 99static usb_fifo_cmd_t ugen_stop_io; 100 101static int ugen_transfer_setup(struct usb_fifo *, 102 const struct usb_config *, uint8_t); 103static int ugen_open_pipe_write(struct usb_fifo *); 104static int ugen_open_pipe_read(struct usb_fifo *); 105static int ugen_set_config(struct usb_fifo *, uint8_t); 106static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 107static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 108static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 109static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 110static int usb_gen_fill_deviceinfo(struct usb_fifo *, 111 struct usb_device_info *); 112static int ugen_re_enumerate(struct usb_fifo *); 113static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 114static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 115static int ugen_fs_uninit(struct usb_fifo *f); 116 117/* structures */ 118 119struct usb_fifo_methods usb_ugen_methods = { 120 .f_open = &ugen_open, 121 .f_close = &ugen_close, 122 .f_ioctl = &ugen_ioctl, 123 .f_ioctl_post = &ugen_ioctl_post, 124 .f_start_read = &ugen_start_read, 125 .f_stop_read = &ugen_stop_io, 126 .f_start_write = &ugen_start_write, 127 .f_stop_write = &ugen_stop_io, 128}; 129 130#ifdef USB_DEBUG 131static int ugen_debug = 0; 132 133static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 134SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RWTUN, &ugen_debug, 135 0, "Debug level"); 136#endif 137 138 139/* prototypes */ 140 141static int 142ugen_transfer_setup(struct usb_fifo *f, 143 const struct usb_config *setup, uint8_t n_setup) 144{ 145 struct usb_endpoint *ep = usb_fifo_softc(f); 146 struct usb_device *udev = f->udev; 147 uint8_t iface_index = ep->iface_index; 148 int error; 149 150 mtx_unlock(f->priv_mtx); 151 152 /* 153 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 154 * exiting the mutex and checking things 155 */ 156 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 157 setup, n_setup, f, f->priv_mtx); 158 if (error == 0) { 159 160 if (f->xfer[0]->nframes == 1) { 161 error = usb_fifo_alloc_buffer(f, 162 f->xfer[0]->max_data_length, 2); 163 } else { 164 error = usb_fifo_alloc_buffer(f, 165 f->xfer[0]->max_frame_size, 166 2 * f->xfer[0]->nframes); 167 } 168 if (error) { 169 usbd_transfer_unsetup(f->xfer, n_setup); 170 } 171 } 172 mtx_lock(f->priv_mtx); 173 174 return (error); 175} 176 177static int 178ugen_open(struct usb_fifo *f, int fflags) 179{ 180 struct usb_endpoint *ep = usb_fifo_softc(f); 181 struct usb_endpoint_descriptor *ed = ep->edesc; 182 uint8_t type; 183 184 DPRINTFN(1, "flag=0x%x pid=%d name=%s\n", fflags, 185 curthread->td_proc->p_pid, curthread->td_proc->p_comm); 186 187 mtx_lock(f->priv_mtx); 188 switch (usbd_get_speed(f->udev)) { 189 case USB_SPEED_LOW: 190 case USB_SPEED_FULL: 191 f->nframes = UGEN_HW_FRAMES; 192 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 193 break; 194 default: 195 f->nframes = UGEN_HW_FRAMES * 8; 196 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 197 break; 198 } 199 200 type = ed->bmAttributes & UE_XFERTYPE; 201 if (type == UE_INTERRUPT) { 202 f->bufsize = 0; /* use "wMaxPacketSize" */ 203 } 204 f->timeout = USB_NO_TIMEOUT; 205 f->flag_short = 0; 206 f->fifo_zlp = 0; 207 mtx_unlock(f->priv_mtx); 208 209 return (0); 210} 211 212static void 213ugen_close(struct usb_fifo *f, int fflags) 214{ 215 216 DPRINTFN(1, "flag=0x%x pid=%d name=%s\n", fflags, 217 curthread->td_proc->p_pid, curthread->td_proc->p_comm); 218 219 /* cleanup */ 220 221 mtx_lock(f->priv_mtx); 222 usbd_transfer_stop(f->xfer[0]); 223 usbd_transfer_stop(f->xfer[1]); 224 mtx_unlock(f->priv_mtx); 225 226 usbd_transfer_unsetup(f->xfer, 2); 227 usb_fifo_free_buffer(f); 228 229 if (ugen_fs_uninit(f)) { 230 /* ignore any errors - we are closing */ 231 DPRINTFN(6, "no FIFOs\n"); 232 } 233} 234 235static int 236ugen_open_pipe_write(struct usb_fifo *f) 237{ 238 struct usb_config usb_config[2]; 239 struct usb_endpoint *ep = usb_fifo_softc(f); 240 struct usb_endpoint_descriptor *ed = ep->edesc; 241 242 mtx_assert(f->priv_mtx, MA_OWNED); 243 244 if (f->xfer[0] || f->xfer[1]) { 245 /* transfers are already opened */ 246 return (0); 247 } 248 memset(usb_config, 0, sizeof(usb_config)); 249 250 usb_config[1].type = UE_CONTROL; 251 usb_config[1].endpoint = 0; 252 usb_config[1].direction = UE_DIR_ANY; 253 usb_config[1].timeout = 1000; /* 1 second */ 254 usb_config[1].interval = 50;/* 50 milliseconds */ 255 usb_config[1].bufsize = sizeof(struct usb_device_request); 256 usb_config[1].callback = &ugen_write_clear_stall_callback; 257 usb_config[1].usb_mode = USB_MODE_HOST; 258 259 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 260 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 261 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 262 usb_config[0].direction = UE_DIR_TX; 263 usb_config[0].interval = USB_DEFAULT_INTERVAL; 264 usb_config[0].flags.proxy_buffer = 1; 265 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 266 267 switch (ed->bmAttributes & UE_XFERTYPE) { 268 case UE_INTERRUPT: 269 case UE_BULK: 270 if (f->flag_short) { 271 usb_config[0].flags.force_short_xfer = 1; 272 } 273 usb_config[0].callback = &ugen_ctrl_write_callback; 274 usb_config[0].timeout = f->timeout; 275 usb_config[0].frames = 1; 276 usb_config[0].bufsize = f->bufsize; 277 if (ugen_transfer_setup(f, usb_config, 2)) { 278 return (EIO); 279 } 280 /* first transfer does not clear stall */ 281 f->flag_stall = 0; 282 break; 283 284 case UE_ISOCHRONOUS: 285 usb_config[0].flags.short_xfer_ok = 1; 286 usb_config[0].bufsize = 0; /* use default */ 287 usb_config[0].frames = f->nframes; 288 usb_config[0].callback = &ugen_isoc_write_callback; 289 usb_config[0].timeout = 0; 290 291 /* clone configuration */ 292 usb_config[1] = usb_config[0]; 293 294 if (ugen_transfer_setup(f, usb_config, 2)) { 295 return (EIO); 296 } 297 break; 298 default: 299 return (EINVAL); 300 } 301 return (0); 302} 303 304static int 305ugen_open_pipe_read(struct usb_fifo *f) 306{ 307 struct usb_config usb_config[2]; 308 struct usb_endpoint *ep = usb_fifo_softc(f); 309 struct usb_endpoint_descriptor *ed = ep->edesc; 310 311 mtx_assert(f->priv_mtx, MA_OWNED); 312 313 if (f->xfer[0] || f->xfer[1]) { 314 /* transfers are already opened */ 315 return (0); 316 } 317 memset(usb_config, 0, sizeof(usb_config)); 318 319 usb_config[1].type = UE_CONTROL; 320 usb_config[1].endpoint = 0; 321 usb_config[1].direction = UE_DIR_ANY; 322 usb_config[1].timeout = 1000; /* 1 second */ 323 usb_config[1].interval = 50;/* 50 milliseconds */ 324 usb_config[1].bufsize = sizeof(struct usb_device_request); 325 usb_config[1].callback = &ugen_read_clear_stall_callback; 326 usb_config[1].usb_mode = USB_MODE_HOST; 327 328 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 329 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 330 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 331 usb_config[0].direction = UE_DIR_RX; 332 usb_config[0].interval = USB_DEFAULT_INTERVAL; 333 usb_config[0].flags.proxy_buffer = 1; 334 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 335 336 switch (ed->bmAttributes & UE_XFERTYPE) { 337 case UE_INTERRUPT: 338 case UE_BULK: 339 if (f->flag_short) { 340 usb_config[0].flags.short_xfer_ok = 1; 341 } 342 usb_config[0].timeout = f->timeout; 343 usb_config[0].frames = 1; 344 usb_config[0].callback = &ugen_ctrl_read_callback; 345 usb_config[0].bufsize = f->bufsize; 346 347 if (ugen_transfer_setup(f, usb_config, 2)) { 348 return (EIO); 349 } 350 /* first transfer does not clear stall */ 351 f->flag_stall = 0; 352 break; 353 354 case UE_ISOCHRONOUS: 355 usb_config[0].flags.short_xfer_ok = 1; 356 usb_config[0].bufsize = 0; /* use default */ 357 usb_config[0].frames = f->nframes; 358 usb_config[0].callback = &ugen_isoc_read_callback; 359 usb_config[0].timeout = 0; 360 361 /* clone configuration */ 362 usb_config[1] = usb_config[0]; 363 364 if (ugen_transfer_setup(f, usb_config, 2)) { 365 return (EIO); 366 } 367 break; 368 369 default: 370 return (EINVAL); 371 } 372 return (0); 373} 374 375static void 376ugen_start_read(struct usb_fifo *f) 377{ 378 /* check that pipes are open */ 379 if (ugen_open_pipe_read(f)) { 380 /* signal error */ 381 usb_fifo_put_data_error(f); 382 } 383 /* start transfers */ 384 usbd_transfer_start(f->xfer[0]); 385 usbd_transfer_start(f->xfer[1]); 386} 387 388static void 389ugen_start_write(struct usb_fifo *f) 390{ 391 /* check that pipes are open */ 392 if (ugen_open_pipe_write(f)) { 393 /* signal error */ 394 usb_fifo_get_data_error(f); 395 } 396 /* start transfers */ 397 usbd_transfer_start(f->xfer[0]); 398 usbd_transfer_start(f->xfer[1]); 399} 400 401static void 402ugen_stop_io(struct usb_fifo *f) 403{ 404 /* stop transfers */ 405 usbd_transfer_stop(f->xfer[0]); 406 usbd_transfer_stop(f->xfer[1]); 407} 408 409static void 410ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 411{ 412 struct usb_fifo *f = usbd_xfer_softc(xfer); 413 struct usb_mbuf *m; 414 415 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 416 417 switch (USB_GET_STATE(xfer)) { 418 case USB_ST_TRANSFERRED: 419 if (xfer->actlen == 0) { 420 if (f->fifo_zlp != 4) { 421 f->fifo_zlp++; 422 } else { 423 /* 424 * Throttle a little bit we have multiple ZLPs 425 * in a row! 426 */ 427 xfer->interval = 64; /* ms */ 428 } 429 } else { 430 /* clear throttle */ 431 xfer->interval = 0; 432 f->fifo_zlp = 0; 433 } 434 usb_fifo_put_data(f, xfer->frbuffers, 0, 435 xfer->actlen, 1); 436 437 case USB_ST_SETUP: 438 if (f->flag_stall) { 439 usbd_transfer_start(f->xfer[1]); 440 break; 441 } 442 USB_IF_POLL(&f->free_q, m); 443 if (m) { 444 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 445 usbd_transfer_submit(xfer); 446 } 447 break; 448 449 default: /* Error */ 450 if (xfer->error != USB_ERR_CANCELLED) { 451 /* send a zero length packet to userland */ 452 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 453 f->flag_stall = 1; 454 f->fifo_zlp = 0; 455 usbd_transfer_start(f->xfer[1]); 456 } 457 break; 458 } 459} 460 461static void 462ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 463{ 464 struct usb_fifo *f = usbd_xfer_softc(xfer); 465 usb_frlength_t actlen; 466 467 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 468 469 switch (USB_GET_STATE(xfer)) { 470 case USB_ST_SETUP: 471 case USB_ST_TRANSFERRED: 472 /* 473 * If writing is in stall, just jump to clear stall 474 * callback and solve the situation. 475 */ 476 if (f->flag_stall) { 477 usbd_transfer_start(f->xfer[1]); 478 break; 479 } 480 /* 481 * Write data, setup and perform hardware transfer. 482 */ 483 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 484 xfer->max_data_length, &actlen, 0)) { 485 usbd_xfer_set_frame_len(xfer, 0, actlen); 486 usbd_transfer_submit(xfer); 487 } 488 break; 489 490 default: /* Error */ 491 if (xfer->error != USB_ERR_CANCELLED) { 492 f->flag_stall = 1; 493 usbd_transfer_start(f->xfer[1]); 494 } 495 break; 496 } 497} 498 499static void 500ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 501{ 502 struct usb_fifo *f = usbd_xfer_softc(xfer); 503 struct usb_xfer *xfer_other = f->xfer[0]; 504 505 if (f->flag_stall == 0) { 506 /* nothing to do */ 507 return; 508 } 509 if (usbd_clear_stall_callback(xfer, xfer_other)) { 510 DPRINTFN(5, "f=%p: stall cleared\n", f); 511 f->flag_stall = 0; 512 usbd_transfer_start(xfer_other); 513 } 514} 515 516static void 517ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 518{ 519 struct usb_fifo *f = usbd_xfer_softc(xfer); 520 struct usb_xfer *xfer_other = f->xfer[0]; 521 522 if (f->flag_stall == 0) { 523 /* nothing to do */ 524 return; 525 } 526 if (usbd_clear_stall_callback(xfer, xfer_other)) { 527 DPRINTFN(5, "f=%p: stall cleared\n", f); 528 f->flag_stall = 0; 529 usbd_transfer_start(xfer_other); 530 } 531} 532 533static void 534ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 535{ 536 struct usb_fifo *f = usbd_xfer_softc(xfer); 537 usb_frlength_t offset; 538 usb_frcount_t n; 539 540 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 541 542 switch (USB_GET_STATE(xfer)) { 543 case USB_ST_TRANSFERRED: 544 545 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 546 547 offset = 0; 548 549 for (n = 0; n != xfer->aframes; n++) { 550 usb_fifo_put_data(f, xfer->frbuffers, offset, 551 xfer->frlengths[n], 1); 552 offset += xfer->max_frame_size; 553 } 554 555 case USB_ST_SETUP: 556tr_setup: 557 for (n = 0; n != xfer->nframes; n++) { 558 /* setup size for next transfer */ 559 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 560 } 561 usbd_transfer_submit(xfer); 562 break; 563 564 default: /* Error */ 565 if (xfer->error == USB_ERR_CANCELLED) { 566 break; 567 } 568 goto tr_setup; 569 } 570} 571 572static void 573ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 574{ 575 struct usb_fifo *f = usbd_xfer_softc(xfer); 576 usb_frlength_t actlen; 577 usb_frlength_t offset; 578 usb_frcount_t n; 579 580 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 581 582 switch (USB_GET_STATE(xfer)) { 583 case USB_ST_TRANSFERRED: 584 case USB_ST_SETUP: 585tr_setup: 586 offset = 0; 587 for (n = 0; n != xfer->nframes; n++) { 588 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 589 xfer->max_frame_size, &actlen, 1)) { 590 usbd_xfer_set_frame_len(xfer, n, actlen); 591 offset += actlen; 592 } else { 593 break; 594 } 595 } 596 597 for (; n != xfer->nframes; n++) { 598 /* fill in zero frames */ 599 usbd_xfer_set_frame_len(xfer, n, 0); 600 } 601 usbd_transfer_submit(xfer); 602 break; 603 604 default: /* Error */ 605 if (xfer->error == USB_ERR_CANCELLED) { 606 break; 607 } 608 goto tr_setup; 609 } 610} 611 612static int 613ugen_set_config(struct usb_fifo *f, uint8_t index) 614{ 615 DPRINTFN(2, "index %u\n", index); 616 617 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 618 /* not possible in device side mode */ 619 return (ENOTTY); 620 } 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 } 628 629 if (usbd_start_set_config(f->udev, index) != 0) 630 return (EIO); 631 632 return (0); 633} 634 635static int 636ugen_set_interface(struct usb_fifo *f, 637 uint8_t iface_index, uint8_t alt_index) 638{ 639 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 640 641 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 642 /* not possible in device side mode */ 643 return (ENOTTY); 644 } 645 /* make sure all FIFO's are gone */ 646 /* else there can be a deadlock */ 647 if (ugen_fs_uninit(f)) { 648 /* ignore any errors */ 649 DPRINTFN(6, "no FIFOs\n"); 650 } 651 /* change setting - will free generic FIFOs, if any */ 652 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 653 return (EIO); 654 } 655 /* probe and attach */ 656 if (usb_probe_and_attach(f->udev, iface_index)) { 657 return (EIO); 658 } 659 return (0); 660} 661 662/*------------------------------------------------------------------------* 663 * ugen_get_cdesc 664 * 665 * This function will retrieve the complete configuration descriptor 666 * at the given index. 667 *------------------------------------------------------------------------*/ 668static int 669ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 670{ 671 struct usb_config_descriptor *cdesc; 672 struct usb_device *udev = f->udev; 673 int error; 674 uint16_t len; 675 uint8_t free_data; 676 677 DPRINTFN(6, "\n"); 678 679 if (ugd->ugd_data == NULL) { 680 /* userland pointer should not be zero */ 681 return (EINVAL); 682 } 683 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 684 (ugd->ugd_config_index == udev->curr_config_index)) { 685 cdesc = usbd_get_config_descriptor(udev); 686 if (cdesc == NULL) 687 return (ENXIO); 688 free_data = 0; 689 690 } else { 691#if (USB_HAVE_FIXED_CONFIG == 0) 692 if (usbd_req_get_config_desc_full(udev, 693 NULL, &cdesc, ugd->ugd_config_index)) { 694 return (ENXIO); 695 } 696 free_data = 1; 697#else 698 /* configuration descriptor data is shared */ 699 return (EINVAL); 700#endif 701 } 702 703 len = UGETW(cdesc->wTotalLength); 704 if (len > ugd->ugd_maxlen) { 705 len = ugd->ugd_maxlen; 706 } 707 DPRINTFN(6, "len=%u\n", len); 708 709 ugd->ugd_actlen = len; 710 ugd->ugd_offset = 0; 711 712 error = copyout(cdesc, ugd->ugd_data, len); 713 714 if (free_data) 715 usbd_free_config_desc(udev, cdesc); 716 717 return (error); 718} 719 720static int 721ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 722{ 723 void *ptr; 724 uint16_t size; 725 int error; 726 uint8_t do_unlock; 727 728 /* Protect scratch area */ 729 do_unlock = usbd_ctrl_lock(f->udev); 730 731 ptr = f->udev->scratch.data; 732 size = sizeof(f->udev->scratch.data); 733 734 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 735 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 736 error = EINVAL; 737 } else { 738 739 if (size > ((uint8_t *)ptr)[0]) { 740 size = ((uint8_t *)ptr)[0]; 741 } 742 if (size > ugd->ugd_maxlen) { 743 size = ugd->ugd_maxlen; 744 } 745 ugd->ugd_actlen = size; 746 ugd->ugd_offset = 0; 747 748 error = copyout(ptr, ugd->ugd_data, size); 749 } 750 if (do_unlock) 751 usbd_ctrl_unlock(f->udev); 752 753 return (error); 754} 755 756/*------------------------------------------------------------------------* 757 * ugen_get_iface_driver 758 * 759 * This function generates an USB interface description for userland. 760 * 761 * Returns: 762 * 0: Success 763 * Else: Failure 764 *------------------------------------------------------------------------*/ 765static int 766ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 767{ 768 struct usb_device *udev = f->udev; 769 struct usb_interface *iface; 770 const char *ptr; 771 const char *desc; 772 unsigned int len; 773 unsigned int maxlen; 774 char buf[128]; 775 int error; 776 777 DPRINTFN(6, "\n"); 778 779 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 780 /* userland pointer should not be zero */ 781 return (EINVAL); 782 } 783 784 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 785 if ((iface == NULL) || (iface->idesc == NULL)) { 786 /* invalid interface index */ 787 return (EINVAL); 788 } 789 790 /* read out device nameunit string, if any */ 791 if ((iface->subdev != NULL) && 792 device_is_attached(iface->subdev) && 793 (ptr = device_get_nameunit(iface->subdev)) && 794 (desc = device_get_desc(iface->subdev))) { 795 796 /* print description */ 797 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 798 799 /* range checks */ 800 maxlen = ugd->ugd_maxlen - 1; 801 len = strlen(buf); 802 if (len > maxlen) 803 len = maxlen; 804 805 /* update actual length, including terminating zero */ 806 ugd->ugd_actlen = len + 1; 807 808 /* copy out interface description */ 809 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 810 } else { 811 /* zero length string is default */ 812 error = copyout("", ugd->ugd_data, 1); 813 } 814 return (error); 815} 816 817/*------------------------------------------------------------------------* 818 * usb_gen_fill_deviceinfo 819 * 820 * This function dumps information about an USB device to the 821 * structure pointed to by the "di" argument. 822 * 823 * Returns: 824 * 0: Success 825 * Else: Failure 826 *------------------------------------------------------------------------*/ 827static int 828usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 829{ 830 struct usb_device *udev; 831 struct usb_device *hub; 832 833 udev = f->udev; 834 835 bzero(di, sizeof(di[0])); 836 837 di->udi_bus = device_get_unit(udev->bus->bdev); 838 di->udi_addr = udev->address; 839 di->udi_index = udev->device_index; 840 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 841 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 842 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 843 usb_printbcd(di->udi_release, sizeof(di->udi_release), 844 UGETW(udev->ddesc.bcdDevice)); 845 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 846 di->udi_productNo = UGETW(udev->ddesc.idProduct); 847 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 848 di->udi_class = udev->ddesc.bDeviceClass; 849 di->udi_subclass = udev->ddesc.bDeviceSubClass; 850 di->udi_protocol = udev->ddesc.bDeviceProtocol; 851 di->udi_config_no = udev->curr_config_no; 852 di->udi_config_index = udev->curr_config_index; 853 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 854 di->udi_speed = udev->speed; 855 di->udi_mode = udev->flags.usb_mode; 856 di->udi_power_mode = udev->power_mode; 857 di->udi_suspended = udev->flags.peer_suspended; 858 859 hub = udev->parent_hub; 860 if (hub) { 861 di->udi_hubaddr = hub->address; 862 di->udi_hubindex = hub->device_index; 863 di->udi_hubport = udev->port_no; 864 } 865 return (0); 866} 867 868/*------------------------------------------------------------------------* 869 * ugen_check_request 870 * 871 * Return values: 872 * 0: Access allowed 873 * Else: No access 874 *------------------------------------------------------------------------*/ 875static int 876ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 877{ 878 struct usb_endpoint *ep; 879 int error; 880 881 /* 882 * Avoid requests that would damage the bus integrity: 883 */ 884 if (((req->bmRequestType == UT_WRITE_DEVICE) && 885 (req->bRequest == UR_SET_ADDRESS)) || 886 ((req->bmRequestType == UT_WRITE_DEVICE) && 887 (req->bRequest == UR_SET_CONFIG)) || 888 ((req->bmRequestType == UT_WRITE_INTERFACE) && 889 (req->bRequest == UR_SET_INTERFACE))) { 890 /* 891 * These requests can be useful for testing USB drivers. 892 */ 893 error = priv_check(curthread, PRIV_DRIVER); 894 if (error) { 895 return (error); 896 } 897 } 898 /* 899 * Special case - handle clearing of stall 900 */ 901 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 902 903 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 904 if (ep == NULL) { 905 return (EINVAL); 906 } 907 if ((req->bRequest == UR_CLEAR_FEATURE) && 908 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 909 usbd_clear_data_toggle(udev, ep); 910 } 911 } 912 /* TODO: add more checks to verify the interface index */ 913 914 return (0); 915} 916 917int 918ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 919{ 920 int error; 921 uint16_t len; 922 uint16_t actlen; 923 924 if (ugen_check_request(f->udev, &ur->ucr_request)) { 925 return (EPERM); 926 } 927 len = UGETW(ur->ucr_request.wLength); 928 929 /* check if "ucr_data" is valid */ 930 if (len != 0) { 931 if (ur->ucr_data == NULL) { 932 return (EFAULT); 933 } 934 } 935 /* do the USB request */ 936 error = usbd_do_request_flags 937 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 938 (ur->ucr_flags & USB_SHORT_XFER_OK) | 939 USB_USER_DATA_PTR, &actlen, 940 USB_DEFAULT_TIMEOUT); 941 942 ur->ucr_actlen = actlen; 943 944 if (error) { 945 error = EIO; 946 } 947 return (error); 948} 949 950/*------------------------------------------------------------------------ 951 * ugen_re_enumerate 952 *------------------------------------------------------------------------*/ 953static int 954ugen_re_enumerate(struct usb_fifo *f) 955{ 956 struct usb_device *udev = f->udev; 957 int error; 958 959 /* 960 * This request can be useful for testing USB drivers: 961 */ 962 error = priv_check(curthread, PRIV_DRIVER); 963 if (error) { 964 return (error); 965 } 966 if (udev->flags.usb_mode != USB_MODE_HOST) { 967 /* not possible in device side mode */ 968 DPRINTFN(6, "device mode\n"); 969 return (ENOTTY); 970 } 971 /* make sure all FIFO's are gone */ 972 /* else there can be a deadlock */ 973 if (ugen_fs_uninit(f)) { 974 /* ignore any errors */ 975 DPRINTFN(6, "no FIFOs\n"); 976 } 977 /* start re-enumeration of device */ 978 usbd_start_re_enumerate(udev); 979 return (0); 980} 981 982int 983ugen_fs_uninit(struct usb_fifo *f) 984{ 985 if (f->fs_xfer == NULL) { 986 return (EINVAL); 987 } 988 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 989 free(f->fs_xfer, M_USB); 990 f->fs_xfer = NULL; 991 f->fs_ep_max = 0; 992 f->fs_ep_ptr = NULL; 993 f->flag_iscomplete = 0; 994 usb_fifo_free_buffer(f); 995 return (0); 996} 997 998static uint8_t 999ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 1000{ 1001 struct usb_mbuf *m; 1002 1003 USB_IF_DEQUEUE(&f->used_q, m); 1004 1005 if (m) { 1006 *pindex = *((uint8_t *)(m->cur_data_ptr)); 1007 1008 USB_IF_ENQUEUE(&f->free_q, m); 1009 1010 return (0); /* success */ 1011 } else { 1012 1013 *pindex = 0; /* fix compiler warning */ 1014 1015 f->flag_iscomplete = 0; 1016 } 1017 return (1); /* failure */ 1018} 1019 1020static void 1021ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1022{ 1023 struct usb_mbuf *m; 1024 1025 USB_IF_DEQUEUE(&f->free_q, m); 1026 1027 if (m == NULL) { 1028 /* can happen during close */ 1029 DPRINTF("out of buffers\n"); 1030 return; 1031 } 1032 USB_MBUF_RESET(m); 1033 1034 *((uint8_t *)(m->cur_data_ptr)) = index; 1035 1036 USB_IF_ENQUEUE(&f->used_q, m); 1037 1038 f->flag_iscomplete = 1; 1039 1040 usb_fifo_wakeup(f); 1041} 1042 1043static int 1044ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1045{ 1046 struct usb_device_request *req; 1047 struct usb_xfer *xfer; 1048 struct usb_fs_endpoint fs_ep; 1049 void *uaddr; /* userland pointer */ 1050 void *kaddr; 1051 usb_frlength_t offset; 1052 usb_frlength_t rem; 1053 usb_frcount_t n; 1054 uint32_t length; 1055 int error; 1056 uint8_t isread; 1057 1058 if (ep_index >= f->fs_ep_max) { 1059 return (EINVAL); 1060 } 1061 xfer = f->fs_xfer[ep_index]; 1062 if (xfer == NULL) { 1063 return (EINVAL); 1064 } 1065 mtx_lock(f->priv_mtx); 1066 if (usbd_transfer_pending(xfer)) { 1067 mtx_unlock(f->priv_mtx); 1068 return (EBUSY); /* should not happen */ 1069 } 1070 mtx_unlock(f->priv_mtx); 1071 1072 error = copyin(f->fs_ep_ptr + 1073 ep_index, &fs_ep, sizeof(fs_ep)); 1074 if (error) { 1075 return (error); 1076 } 1077 /* security checks */ 1078 1079 if (fs_ep.nFrames > xfer->max_frame_count) { 1080 xfer->error = USB_ERR_INVAL; 1081 goto complete; 1082 } 1083 if (fs_ep.nFrames == 0) { 1084 xfer->error = USB_ERR_INVAL; 1085 goto complete; 1086 } 1087 error = copyin(fs_ep.ppBuffer, 1088 &uaddr, sizeof(uaddr)); 1089 if (error) { 1090 return (error); 1091 } 1092 /* reset first frame */ 1093 usbd_xfer_set_frame_offset(xfer, 0, 0); 1094 1095 if (xfer->flags_int.control_xfr) { 1096 1097 req = xfer->frbuffers[0].buffer; 1098 1099 error = copyin(fs_ep.pLength, 1100 &length, sizeof(length)); 1101 if (error) { 1102 return (error); 1103 } 1104 if (length != sizeof(*req)) { 1105 xfer->error = USB_ERR_INVAL; 1106 goto complete; 1107 } 1108 if (length != 0) { 1109 error = copyin(uaddr, req, length); 1110 if (error) { 1111 return (error); 1112 } 1113 } 1114 if (ugen_check_request(f->udev, req)) { 1115 xfer->error = USB_ERR_INVAL; 1116 goto complete; 1117 } 1118 usbd_xfer_set_frame_len(xfer, 0, length); 1119 1120 /* Host mode only ! */ 1121 if ((req->bmRequestType & 1122 (UT_READ | UT_WRITE)) == UT_READ) { 1123 isread = 1; 1124 } else { 1125 isread = 0; 1126 } 1127 n = 1; 1128 offset = sizeof(*req); 1129 1130 } else { 1131 /* Device and Host mode */ 1132 if (USB_GET_DATA_ISREAD(xfer)) { 1133 isread = 1; 1134 } else { 1135 isread = 0; 1136 } 1137 n = 0; 1138 offset = 0; 1139 } 1140 1141 rem = usbd_xfer_max_len(xfer); 1142 xfer->nframes = fs_ep.nFrames; 1143 xfer->timeout = fs_ep.timeout; 1144 if (xfer->timeout > 65535) { 1145 xfer->timeout = 65535; 1146 } 1147 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1148 xfer->flags.short_xfer_ok = 1; 1149 else 1150 xfer->flags.short_xfer_ok = 0; 1151 1152 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1153 xfer->flags.short_frames_ok = 1; 1154 else 1155 xfer->flags.short_frames_ok = 0; 1156 1157 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1158 xfer->flags.force_short_xfer = 1; 1159 else 1160 xfer->flags.force_short_xfer = 0; 1161 1162 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1163 usbd_xfer_set_stall(xfer); 1164 else 1165 xfer->flags.stall_pipe = 0; 1166 1167 for (; n != xfer->nframes; n++) { 1168 1169 error = copyin(fs_ep.pLength + n, 1170 &length, sizeof(length)); 1171 if (error) { 1172 break; 1173 } 1174 usbd_xfer_set_frame_len(xfer, n, length); 1175 1176 if (length > rem) { 1177 xfer->error = USB_ERR_INVAL; 1178 goto complete; 1179 } 1180 rem -= length; 1181 1182 if (!isread) { 1183 1184 /* we need to know the source buffer */ 1185 error = copyin(fs_ep.ppBuffer + n, 1186 &uaddr, sizeof(uaddr)); 1187 if (error) { 1188 break; 1189 } 1190 if (xfer->flags_int.isochronous_xfr) { 1191 /* get kernel buffer address */ 1192 kaddr = xfer->frbuffers[0].buffer; 1193 kaddr = USB_ADD_BYTES(kaddr, offset); 1194 } else { 1195 /* set current frame offset */ 1196 usbd_xfer_set_frame_offset(xfer, offset, n); 1197 1198 /* get kernel buffer address */ 1199 kaddr = xfer->frbuffers[n].buffer; 1200 } 1201 1202 /* move data */ 1203 error = copyin(uaddr, kaddr, length); 1204 if (error) { 1205 break; 1206 } 1207 } 1208 offset += length; 1209 } 1210 return (error); 1211 1212complete: 1213 mtx_lock(f->priv_mtx); 1214 ugen_fs_set_complete(f, ep_index); 1215 mtx_unlock(f->priv_mtx); 1216 return (0); 1217} 1218 1219static int 1220ugen_fs_copy_out_cancelled(struct usb_fs_endpoint *fs_ep_uptr) 1221{ 1222 struct usb_fs_endpoint fs_ep; 1223 int error; 1224 1225 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1226 if (error) 1227 return (error); 1228 1229 fs_ep.status = USB_ERR_CANCELLED; 1230 fs_ep.aFrames = 0; 1231 fs_ep.isoc_time_complete = 0; 1232 1233 /* update "aFrames" */ 1234 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1235 sizeof(fs_ep.aFrames)); 1236 if (error) 1237 goto done; 1238 1239 /* update "isoc_time_complete" */ 1240 error = copyout(&fs_ep.isoc_time_complete, 1241 &fs_ep_uptr->isoc_time_complete, 1242 sizeof(fs_ep.isoc_time_complete)); 1243 if (error) 1244 goto done; 1245 1246 /* update "status" */ 1247 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1248 sizeof(fs_ep.status)); 1249done: 1250 return (error); 1251} 1252 1253static int 1254ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1255{ 1256 struct usb_device_request *req; 1257 struct usb_xfer *xfer; 1258 struct usb_fs_endpoint fs_ep; 1259 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1260 void *uaddr; /* userland ptr */ 1261 void *kaddr; 1262 usb_frlength_t offset; 1263 usb_frlength_t rem; 1264 usb_frcount_t n; 1265 uint32_t length; 1266 uint32_t temp; 1267 int error; 1268 uint8_t isread; 1269 1270 if (ep_index >= f->fs_ep_max) 1271 return (EINVAL); 1272 1273 xfer = f->fs_xfer[ep_index]; 1274 if (xfer == NULL) 1275 return (EINVAL); 1276 1277 mtx_lock(f->priv_mtx); 1278 if (!xfer->flags_int.transferring && 1279 !xfer->flags_int.started) { 1280 mtx_unlock(f->priv_mtx); 1281 DPRINTF("Returning fake cancel event\n"); 1282 return (ugen_fs_copy_out_cancelled(f->fs_ep_ptr + ep_index)); 1283 } else if (usbd_transfer_pending(xfer)) { 1284 mtx_unlock(f->priv_mtx); 1285 return (EBUSY); /* should not happen */ 1286 } 1287 mtx_unlock(f->priv_mtx); 1288 1289 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1290 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1291 if (error) { 1292 return (error); 1293 } 1294 fs_ep.status = xfer->error; 1295 fs_ep.aFrames = xfer->aframes; 1296 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1297 if (xfer->error) { 1298 goto complete; 1299 } 1300 if (xfer->flags_int.control_xfr) { 1301 req = xfer->frbuffers[0].buffer; 1302 1303 /* Host mode only ! */ 1304 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1305 isread = 1; 1306 } else { 1307 isread = 0; 1308 } 1309 if (xfer->nframes == 0) 1310 n = 0; /* should never happen */ 1311 else 1312 n = 1; 1313 } else { 1314 /* Device and Host mode */ 1315 if (USB_GET_DATA_ISREAD(xfer)) { 1316 isread = 1; 1317 } else { 1318 isread = 0; 1319 } 1320 n = 0; 1321 } 1322 1323 /* Update lengths and copy out data */ 1324 1325 rem = usbd_xfer_max_len(xfer); 1326 offset = 0; 1327 1328 for (; n != xfer->nframes; n++) { 1329 1330 /* get initial length into "temp" */ 1331 error = copyin(fs_ep.pLength + n, 1332 &temp, sizeof(temp)); 1333 if (error) { 1334 return (error); 1335 } 1336 if (temp > rem) { 1337 /* the userland length has been corrupted */ 1338 DPRINTF("corrupt userland length " 1339 "%u > %u\n", temp, rem); 1340 fs_ep.status = USB_ERR_INVAL; 1341 goto complete; 1342 } 1343 rem -= temp; 1344 1345 /* get actual transfer length */ 1346 length = xfer->frlengths[n]; 1347 if (length > temp) { 1348 /* data overflow */ 1349 fs_ep.status = USB_ERR_INVAL; 1350 DPRINTF("data overflow %u > %u\n", 1351 length, temp); 1352 goto complete; 1353 } 1354 if (isread) { 1355 1356 /* we need to know the destination buffer */ 1357 error = copyin(fs_ep.ppBuffer + n, 1358 &uaddr, sizeof(uaddr)); 1359 if (error) { 1360 return (error); 1361 } 1362 if (xfer->flags_int.isochronous_xfr) { 1363 /* only one frame buffer */ 1364 kaddr = USB_ADD_BYTES( 1365 xfer->frbuffers[0].buffer, offset); 1366 } else { 1367 /* multiple frame buffers */ 1368 kaddr = xfer->frbuffers[n].buffer; 1369 } 1370 1371 /* move data */ 1372 error = copyout(kaddr, uaddr, length); 1373 if (error) { 1374 return (error); 1375 } 1376 } 1377 /* 1378 * Update offset according to initial length, which is 1379 * needed by isochronous transfers! 1380 */ 1381 offset += temp; 1382 1383 /* update length */ 1384 error = copyout(&length, 1385 fs_ep.pLength + n, sizeof(length)); 1386 if (error) { 1387 return (error); 1388 } 1389 } 1390 1391complete: 1392 /* update "aFrames" */ 1393 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1394 sizeof(fs_ep.aFrames)); 1395 if (error) 1396 goto done; 1397 1398 /* update "isoc_time_complete" */ 1399 error = copyout(&fs_ep.isoc_time_complete, 1400 &fs_ep_uptr->isoc_time_complete, 1401 sizeof(fs_ep.isoc_time_complete)); 1402 if (error) 1403 goto done; 1404 1405 /* update "status" */ 1406 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1407 sizeof(fs_ep.status)); 1408done: 1409 return (error); 1410} 1411 1412static uint8_t 1413ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1414{ 1415 struct usb_fifo *f_rx; 1416 struct usb_fifo *f_tx; 1417 1418 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1419 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1420 1421 if ((fflags & FREAD) && f_rx && 1422 (f_rx->xfer[0] || f_rx->xfer[1])) { 1423 return (1); /* RX FIFO in use */ 1424 } 1425 if ((fflags & FWRITE) && f_tx && 1426 (f_tx->xfer[0] || f_tx->xfer[1])) { 1427 return (1); /* TX FIFO in use */ 1428 } 1429 return (0); /* not in use */ 1430} 1431 1432static int 1433ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1434{ 1435 struct usb_config usb_config[1]; 1436 struct usb_device_request req; 1437 union { 1438 struct usb_fs_complete *pcomp; 1439 struct usb_fs_start *pstart; 1440 struct usb_fs_stop *pstop; 1441 struct usb_fs_open *popen; 1442 struct usb_fs_open_stream *popen_stream; 1443 struct usb_fs_close *pclose; 1444 struct usb_fs_clear_stall_sync *pstall; 1445 void *addr; 1446 } u; 1447 struct usb_endpoint *ep; 1448 struct usb_endpoint_descriptor *ed; 1449 struct usb_xfer *xfer; 1450 int error = 0; 1451 uint8_t iface_index; 1452 uint8_t isread; 1453 uint8_t ep_index; 1454 uint8_t pre_scale; 1455 1456 u.addr = addr; 1457 1458 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1459 1460 switch (cmd) { 1461 case USB_FS_COMPLETE: 1462 mtx_lock(f->priv_mtx); 1463 error = ugen_fs_get_complete(f, &ep_index); 1464 mtx_unlock(f->priv_mtx); 1465 1466 if (error) { 1467 error = EBUSY; 1468 break; 1469 } 1470 u.pcomp->ep_index = ep_index; 1471 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1472 break; 1473 1474 case USB_FS_START: 1475 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1476 if (error) 1477 break; 1478 mtx_lock(f->priv_mtx); 1479 xfer = f->fs_xfer[u.pstart->ep_index]; 1480 usbd_transfer_start(xfer); 1481 mtx_unlock(f->priv_mtx); 1482 break; 1483 1484 case USB_FS_STOP: 1485 if (u.pstop->ep_index >= f->fs_ep_max) { 1486 error = EINVAL; 1487 break; 1488 } 1489 mtx_lock(f->priv_mtx); 1490 xfer = f->fs_xfer[u.pstart->ep_index]; 1491 if (usbd_transfer_pending(xfer)) { 1492 usbd_transfer_stop(xfer); 1493 1494 /* 1495 * Check if the USB transfer was stopped 1496 * before it was even started and fake a 1497 * cancel event. 1498 */ 1499 if (!xfer->flags_int.transferring && 1500 !xfer->flags_int.started) { 1501 DPRINTF("Issuing fake completion event\n"); 1502 ugen_fs_set_complete(xfer->priv_sc, 1503 USB_P2U(xfer->priv_fifo)); 1504 } 1505 } 1506 mtx_unlock(f->priv_mtx); 1507 break; 1508 1509 case USB_FS_OPEN: 1510 case USB_FS_OPEN_STREAM: 1511 if (u.popen->ep_index >= f->fs_ep_max) { 1512 error = EINVAL; 1513 break; 1514 } 1515 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1516 error = EBUSY; 1517 break; 1518 } 1519 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1520 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1521 } 1522 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1523 pre_scale = 1; 1524 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1525 } else { 1526 pre_scale = 0; 1527 } 1528 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1529 u.popen->max_frames = USB_FS_MAX_FRAMES; 1530 break; 1531 } 1532 if (u.popen->max_frames == 0) { 1533 error = EINVAL; 1534 break; 1535 } 1536 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1537 if (ep == NULL) { 1538 error = EINVAL; 1539 break; 1540 } 1541 ed = ep->edesc; 1542 if (ed == NULL) { 1543 error = ENXIO; 1544 break; 1545 } 1546 iface_index = ep->iface_index; 1547 1548 memset(usb_config, 0, sizeof(usb_config)); 1549 1550 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1551 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1552 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1553 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1554 usb_config[0].flags.proxy_buffer = 1; 1555 if (pre_scale != 0) 1556 usb_config[0].flags.pre_scale_frames = 1; 1557 usb_config[0].callback = &ugen_ctrl_fs_callback; 1558 usb_config[0].timeout = 0; /* no timeout */ 1559 usb_config[0].frames = u.popen->max_frames; 1560 usb_config[0].bufsize = u.popen->max_bufsize; 1561 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1562 if (cmd == USB_FS_OPEN_STREAM) 1563 usb_config[0].stream_id = u.popen_stream->stream_id; 1564 1565 if (usb_config[0].type == UE_CONTROL) { 1566 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1567 error = EINVAL; 1568 break; 1569 } 1570 } else { 1571 1572 isread = ((usb_config[0].endpoint & 1573 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1574 1575 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1576 isread = !isread; 1577 } 1578 /* check permissions */ 1579 if (isread) { 1580 if (!(fflags & FREAD)) { 1581 error = EPERM; 1582 break; 1583 } 1584 } else { 1585 if (!(fflags & FWRITE)) { 1586 error = EPERM; 1587 break; 1588 } 1589 } 1590 } 1591 error = usbd_transfer_setup(f->udev, &iface_index, 1592 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1593 f, f->priv_mtx); 1594 if (error == 0) { 1595 /* update maximums */ 1596 u.popen->max_packet_length = 1597 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1598 u.popen->max_bufsize = 1599 f->fs_xfer[u.popen->ep_index]->max_data_length; 1600 /* update number of frames */ 1601 u.popen->max_frames = 1602 f->fs_xfer[u.popen->ep_index]->nframes; 1603 /* store index of endpoint */ 1604 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1605 ((uint8_t *)0) + u.popen->ep_index; 1606 } else { 1607 error = ENOMEM; 1608 } 1609 break; 1610 1611 case USB_FS_CLOSE: 1612 if (u.pclose->ep_index >= f->fs_ep_max) { 1613 error = EINVAL; 1614 break; 1615 } 1616 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1617 error = EINVAL; 1618 break; 1619 } 1620 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1621 break; 1622 1623 case USB_FS_CLEAR_STALL_SYNC: 1624 if (u.pstall->ep_index >= f->fs_ep_max) { 1625 error = EINVAL; 1626 break; 1627 } 1628 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1629 error = EINVAL; 1630 break; 1631 } 1632 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1633 error = EINVAL; 1634 break; 1635 } 1636 mtx_lock(f->priv_mtx); 1637 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1638 mtx_unlock(f->priv_mtx); 1639 1640 if (error) { 1641 return (EBUSY); 1642 } 1643 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1644 1645 /* setup a clear-stall packet */ 1646 req.bmRequestType = UT_WRITE_ENDPOINT; 1647 req.bRequest = UR_CLEAR_FEATURE; 1648 USETW(req.wValue, UF_ENDPOINT_HALT); 1649 req.wIndex[0] = ep->edesc->bEndpointAddress; 1650 req.wIndex[1] = 0; 1651 USETW(req.wLength, 0); 1652 1653 error = usbd_do_request(f->udev, NULL, &req, NULL); 1654 if (error == 0) { 1655 usbd_clear_data_toggle(f->udev, ep); 1656 } else { 1657 error = ENXIO; 1658 } 1659 break; 1660 1661 default: 1662 error = ENOIOCTL; 1663 break; 1664 } 1665 1666 DPRINTFN(6, "error=%d\n", error); 1667 1668 return (error); 1669} 1670 1671static int 1672ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1673{ 1674 uint8_t t; 1675 1676 if (*(int *)addr) 1677 t = 1; 1678 else 1679 t = 0; 1680 1681 if (f->flag_short == t) { 1682 /* same value like before - accept */ 1683 return (0); 1684 } 1685 if (f->xfer[0] || f->xfer[1]) { 1686 /* cannot change this during transfer */ 1687 return (EBUSY); 1688 } 1689 f->flag_short = t; 1690 return (0); 1691} 1692 1693static int 1694ugen_set_timeout(struct usb_fifo *f, void *addr) 1695{ 1696 f->timeout = *(int *)addr; 1697 if (f->timeout > 65535) { 1698 /* limit user input */ 1699 f->timeout = 65535; 1700 } 1701 return (0); 1702} 1703 1704static int 1705ugen_get_frame_size(struct usb_fifo *f, void *addr) 1706{ 1707 if (f->xfer[0]) { 1708 *(int *)addr = f->xfer[0]->max_frame_size; 1709 } else { 1710 return (EINVAL); 1711 } 1712 return (0); 1713} 1714 1715static int 1716ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1717{ 1718 usb_frlength_t t; 1719 1720 if (*(int *)addr < 0) 1721 t = 0; /* use "wMaxPacketSize" */ 1722 else if (*(int *)addr < (256 * 1024)) 1723 t = *(int *)addr; 1724 else 1725 t = 256 * 1024; 1726 1727 if (f->bufsize == t) { 1728 /* same value like before - accept */ 1729 return (0); 1730 } 1731 if (f->xfer[0] || f->xfer[1]) { 1732 /* cannot change this during transfer */ 1733 return (EBUSY); 1734 } 1735 f->bufsize = t; 1736 return (0); 1737} 1738 1739static int 1740ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1741{ 1742 *(int *)addr = f->bufsize; 1743 return (0); 1744} 1745 1746static int 1747ugen_get_iface_desc(struct usb_fifo *f, 1748 struct usb_interface_descriptor *idesc) 1749{ 1750 struct usb_interface *iface; 1751 1752 iface = usbd_get_iface(f->udev, f->iface_index); 1753 if (iface && iface->idesc) { 1754 *idesc = *(iface->idesc); 1755 } else { 1756 return (EIO); 1757 } 1758 return (0); 1759} 1760 1761static int 1762ugen_get_endpoint_desc(struct usb_fifo *f, 1763 struct usb_endpoint_descriptor *ed) 1764{ 1765 struct usb_endpoint *ep; 1766 1767 ep = usb_fifo_softc(f); 1768 1769 if (ep && ep->edesc) { 1770 *ed = *ep->edesc; 1771 } else { 1772 return (EINVAL); 1773 } 1774 return (0); 1775} 1776 1777static int 1778ugen_set_power_mode(struct usb_fifo *f, int mode) 1779{ 1780 struct usb_device *udev = f->udev; 1781 int err; 1782 uint8_t old_mode; 1783 1784 if ((udev == NULL) || 1785 (udev->parent_hub == NULL)) { 1786 return (EINVAL); 1787 } 1788 err = priv_check(curthread, PRIV_DRIVER); 1789 if (err) 1790 return (err); 1791 1792 /* get old power mode */ 1793 old_mode = udev->power_mode; 1794 1795 /* if no change, then just return */ 1796 if (old_mode == mode) 1797 return (0); 1798 1799 switch (mode) { 1800 case USB_POWER_MODE_OFF: 1801 if (udev->flags.usb_mode == USB_MODE_HOST && 1802 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1803 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF; 1804 } 1805 /* set power mode will wake up the explore thread */ 1806 break; 1807 1808 case USB_POWER_MODE_ON: 1809 case USB_POWER_MODE_SAVE: 1810 break; 1811 1812 case USB_POWER_MODE_RESUME: 1813#if USB_HAVE_POWERD 1814 /* let USB-powerd handle resume */ 1815 USB_BUS_LOCK(udev->bus); 1816 udev->pwr_save.write_refs++; 1817 udev->pwr_save.last_xfer_time = ticks; 1818 USB_BUS_UNLOCK(udev->bus); 1819 1820 /* set new power mode */ 1821 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1822 1823 /* wait for resume to complete */ 1824 usb_pause_mtx(NULL, hz / 4); 1825 1826 /* clear write reference */ 1827 USB_BUS_LOCK(udev->bus); 1828 udev->pwr_save.write_refs--; 1829 USB_BUS_UNLOCK(udev->bus); 1830#endif 1831 mode = USB_POWER_MODE_SAVE; 1832 break; 1833 1834 case USB_POWER_MODE_SUSPEND: 1835#if USB_HAVE_POWERD 1836 /* let USB-powerd handle suspend */ 1837 USB_BUS_LOCK(udev->bus); 1838 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1839 USB_BUS_UNLOCK(udev->bus); 1840#endif 1841 mode = USB_POWER_MODE_SAVE; 1842 break; 1843 1844 default: 1845 return (EINVAL); 1846 } 1847 1848 if (err) 1849 return (ENXIO); /* I/O failure */ 1850 1851 /* if we are powered off we need to re-enumerate first */ 1852 if (old_mode == USB_POWER_MODE_OFF) { 1853 if (udev->flags.usb_mode == USB_MODE_HOST && 1854 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1855 udev->re_enumerate_wait = USB_RE_ENUM_START; 1856 } 1857 /* set power mode will wake up the explore thread */ 1858 } 1859 1860 /* set new power mode */ 1861 usbd_set_power_mode(udev, mode); 1862 1863 return (0); /* success */ 1864} 1865 1866static int 1867ugen_get_power_mode(struct usb_fifo *f) 1868{ 1869 struct usb_device *udev = f->udev; 1870 1871 if (udev == NULL) 1872 return (USB_POWER_MODE_ON); 1873 1874 return (udev->power_mode); 1875} 1876 1877static int 1878ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp) 1879{ 1880 struct usb_device *udev = f->udev; 1881 struct usb_device *next; 1882 unsigned int nlevel = 0; 1883 1884 if (udev == NULL) 1885 goto error; 1886 1887 dpp->udp_bus = device_get_unit(udev->bus->bdev); 1888 dpp->udp_index = udev->device_index; 1889 1890 /* count port levels */ 1891 next = udev; 1892 while (next->parent_hub != NULL) { 1893 nlevel++; 1894 next = next->parent_hub; 1895 } 1896 1897 /* check if too many levels */ 1898 if (nlevel > USB_DEVICE_PORT_PATH_MAX) 1899 goto error; 1900 1901 /* store total level of ports */ 1902 dpp->udp_port_level = nlevel; 1903 1904 /* store port index array */ 1905 next = udev; 1906 while (next->parent_hub != NULL) { 1907 dpp->udp_port_no[--nlevel] = next->port_no; 1908 next = next->parent_hub; 1909 } 1910 return (0); /* success */ 1911 1912error: 1913 return (EINVAL); /* failure */ 1914} 1915 1916static int 1917ugen_get_power_usage(struct usb_fifo *f) 1918{ 1919 struct usb_device *udev = f->udev; 1920 1921 if (udev == NULL) 1922 return (0); 1923 1924 return (udev->power); 1925} 1926 1927static int 1928ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1929 uint8_t set, uint16_t feature) 1930{ 1931 struct usb_device *udev = f->udev; 1932 struct usb_hub *hub; 1933 int err; 1934 1935 err = priv_check(curthread, PRIV_DRIVER); 1936 if (err) { 1937 return (err); 1938 } 1939 if (port_no == 0) { 1940 return (EINVAL); 1941 } 1942 if ((udev == NULL) || 1943 (udev->hub == NULL)) { 1944 return (EINVAL); 1945 } 1946 hub = udev->hub; 1947 1948 if (port_no > hub->nports) { 1949 return (EINVAL); 1950 } 1951 if (set) 1952 err = usbd_req_set_port_feature(udev, 1953 NULL, port_no, feature); 1954 else 1955 err = usbd_req_clear_port_feature(udev, 1956 NULL, port_no, feature); 1957 1958 if (err) 1959 return (ENXIO); /* failure */ 1960 1961 return (0); /* success */ 1962} 1963 1964static int 1965ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1966{ 1967 struct usb_fifo *f_rx; 1968 struct usb_fifo *f_tx; 1969 int error = 0; 1970 1971 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1972 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1973 1974 switch (cmd) { 1975 case USB_SET_RX_SHORT_XFER: 1976 if (fflags & FREAD) { 1977 error = ugen_set_short_xfer(f_rx, addr); 1978 } else { 1979 error = EINVAL; 1980 } 1981 break; 1982 1983 case USB_SET_TX_FORCE_SHORT: 1984 if (fflags & FWRITE) { 1985 error = ugen_set_short_xfer(f_tx, addr); 1986 } else { 1987 error = EINVAL; 1988 } 1989 break; 1990 1991 case USB_SET_RX_TIMEOUT: 1992 if (fflags & FREAD) { 1993 error = ugen_set_timeout(f_rx, addr); 1994 } else { 1995 error = EINVAL; 1996 } 1997 break; 1998 1999 case USB_SET_TX_TIMEOUT: 2000 if (fflags & FWRITE) { 2001 error = ugen_set_timeout(f_tx, addr); 2002 } else { 2003 error = EINVAL; 2004 } 2005 break; 2006 2007 case USB_GET_RX_FRAME_SIZE: 2008 if (fflags & FREAD) { 2009 error = ugen_get_frame_size(f_rx, addr); 2010 } else { 2011 error = EINVAL; 2012 } 2013 break; 2014 2015 case USB_GET_TX_FRAME_SIZE: 2016 if (fflags & FWRITE) { 2017 error = ugen_get_frame_size(f_tx, addr); 2018 } else { 2019 error = EINVAL; 2020 } 2021 break; 2022 2023 case USB_SET_RX_BUFFER_SIZE: 2024 if (fflags & FREAD) { 2025 error = ugen_set_buffer_size(f_rx, addr); 2026 } else { 2027 error = EINVAL; 2028 } 2029 break; 2030 2031 case USB_SET_TX_BUFFER_SIZE: 2032 if (fflags & FWRITE) { 2033 error = ugen_set_buffer_size(f_tx, addr); 2034 } else { 2035 error = EINVAL; 2036 } 2037 break; 2038 2039 case USB_GET_RX_BUFFER_SIZE: 2040 if (fflags & FREAD) { 2041 error = ugen_get_buffer_size(f_rx, addr); 2042 } else { 2043 error = EINVAL; 2044 } 2045 break; 2046 2047 case USB_GET_TX_BUFFER_SIZE: 2048 if (fflags & FWRITE) { 2049 error = ugen_get_buffer_size(f_tx, addr); 2050 } else { 2051 error = EINVAL; 2052 } 2053 break; 2054 2055 case USB_GET_RX_INTERFACE_DESC: 2056 if (fflags & FREAD) { 2057 error = ugen_get_iface_desc(f_rx, addr); 2058 } else { 2059 error = EINVAL; 2060 } 2061 break; 2062 2063 case USB_GET_TX_INTERFACE_DESC: 2064 if (fflags & FWRITE) { 2065 error = ugen_get_iface_desc(f_tx, addr); 2066 } else { 2067 error = EINVAL; 2068 } 2069 break; 2070 2071 case USB_GET_RX_ENDPOINT_DESC: 2072 if (fflags & FREAD) { 2073 error = ugen_get_endpoint_desc(f_rx, addr); 2074 } else { 2075 error = EINVAL; 2076 } 2077 break; 2078 2079 case USB_GET_TX_ENDPOINT_DESC: 2080 if (fflags & FWRITE) { 2081 error = ugen_get_endpoint_desc(f_tx, addr); 2082 } else { 2083 error = EINVAL; 2084 } 2085 break; 2086 2087 case USB_SET_RX_STALL_FLAG: 2088 if ((fflags & FREAD) && (*(int *)addr)) { 2089 f_rx->flag_stall = 1; 2090 } 2091 break; 2092 2093 case USB_SET_TX_STALL_FLAG: 2094 if ((fflags & FWRITE) && (*(int *)addr)) { 2095 f_tx->flag_stall = 1; 2096 } 2097 break; 2098 2099 default: 2100 error = ENOIOCTL; 2101 break; 2102 } 2103 return (error); 2104} 2105 2106static int 2107ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2108{ 2109 union { 2110 struct usb_interface_descriptor *idesc; 2111 struct usb_alt_interface *ai; 2112 struct usb_device_descriptor *ddesc; 2113 struct usb_config_descriptor *cdesc; 2114 struct usb_device_stats *stat; 2115 struct usb_fs_init *pinit; 2116 struct usb_fs_uninit *puninit; 2117 struct usb_device_port_path *dpp; 2118 uint32_t *ptime; 2119 void *addr; 2120 int *pint; 2121 } u; 2122 struct usb_device_descriptor *dtemp; 2123 struct usb_config_descriptor *ctemp; 2124 struct usb_interface *iface; 2125 int error = 0; 2126 uint8_t n; 2127 2128 u.addr = addr; 2129 2130 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2131 2132 switch (cmd) { 2133 case USB_DISCOVER: 2134 usb_needs_explore_all(); 2135 break; 2136 2137 case USB_SETDEBUG: 2138 if (!(fflags & FWRITE)) { 2139 error = EPERM; 2140 break; 2141 } 2142 usb_debug = *(int *)addr; 2143 break; 2144 2145 case USB_GET_CONFIG: 2146 *(int *)addr = f->udev->curr_config_index; 2147 break; 2148 2149 case USB_SET_CONFIG: 2150 if (!(fflags & FWRITE)) { 2151 error = EPERM; 2152 break; 2153 } 2154 error = ugen_set_config(f, *(int *)addr); 2155 break; 2156 2157 case USB_GET_ALTINTERFACE: 2158 iface = usbd_get_iface(f->udev, 2159 u.ai->uai_interface_index); 2160 if (iface && iface->idesc) { 2161 u.ai->uai_alt_index = iface->alt_index; 2162 } else { 2163 error = EINVAL; 2164 } 2165 break; 2166 2167 case USB_SET_ALTINTERFACE: 2168 if (!(fflags & FWRITE)) { 2169 error = EPERM; 2170 break; 2171 } 2172 error = ugen_set_interface(f, 2173 u.ai->uai_interface_index, u.ai->uai_alt_index); 2174 break; 2175 2176 case USB_GET_DEVICE_DESC: 2177 dtemp = usbd_get_device_descriptor(f->udev); 2178 if (!dtemp) { 2179 error = EIO; 2180 break; 2181 } 2182 *u.ddesc = *dtemp; 2183 break; 2184 2185 case USB_GET_CONFIG_DESC: 2186 ctemp = usbd_get_config_descriptor(f->udev); 2187 if (!ctemp) { 2188 error = EIO; 2189 break; 2190 } 2191 *u.cdesc = *ctemp; 2192 break; 2193 2194 case USB_GET_FULL_DESC: 2195 error = ugen_get_cdesc(f, addr); 2196 break; 2197 2198 case USB_GET_STRING_DESC: 2199 error = ugen_get_sdesc(f, addr); 2200 break; 2201 2202 case USB_GET_IFACE_DRIVER: 2203 error = ugen_get_iface_driver(f, addr); 2204 break; 2205 2206 case USB_REQUEST: 2207 case USB_DO_REQUEST: 2208 if (!(fflags & FWRITE)) { 2209 error = EPERM; 2210 break; 2211 } 2212 error = ugen_do_request(f, addr); 2213 break; 2214 2215 case USB_DEVICEINFO: 2216 case USB_GET_DEVICEINFO: 2217 error = usb_gen_fill_deviceinfo(f, addr); 2218 break; 2219 2220 case USB_DEVICESTATS: 2221 for (n = 0; n != 4; n++) { 2222 2223 u.stat->uds_requests_fail[n] = 2224 f->udev->stats_err.uds_requests[n]; 2225 u.stat->uds_requests_ok[n] = 2226 f->udev->stats_ok.uds_requests[n]; 2227 } 2228 break; 2229 2230 case USB_DEVICEENUMERATE: 2231 error = ugen_re_enumerate(f); 2232 break; 2233 2234 case USB_GET_PLUGTIME: 2235 *u.ptime = f->udev->plugtime; 2236 break; 2237 2238 case USB_CLAIM_INTERFACE: 2239 case USB_RELEASE_INTERFACE: 2240 /* TODO */ 2241 break; 2242 2243 case USB_IFACE_DRIVER_ACTIVE: 2244 2245 n = *u.pint & 0xFF; 2246 2247 iface = usbd_get_iface(f->udev, n); 2248 2249 if (iface && iface->subdev) 2250 error = 0; 2251 else 2252 error = ENXIO; 2253 break; 2254 2255 case USB_IFACE_DRIVER_DETACH: 2256 2257 error = priv_check(curthread, PRIV_DRIVER); 2258 2259 if (error) 2260 break; 2261 2262 n = *u.pint & 0xFF; 2263 2264 if (n == USB_IFACE_INDEX_ANY) { 2265 error = EINVAL; 2266 break; 2267 } 2268 2269 /* 2270 * Detach the currently attached driver. 2271 */ 2272 usb_detach_device(f->udev, n, 0); 2273 2274 /* 2275 * Set parent to self, this should keep attach away 2276 * until the next set configuration event. 2277 */ 2278 usbd_set_parent_iface(f->udev, n, n); 2279 break; 2280 2281 case USB_SET_POWER_MODE: 2282 error = ugen_set_power_mode(f, *u.pint); 2283 break; 2284 2285 case USB_GET_POWER_MODE: 2286 *u.pint = ugen_get_power_mode(f); 2287 break; 2288 2289 case USB_GET_DEV_PORT_PATH: 2290 error = ugen_get_port_path(f, u.dpp); 2291 break; 2292 2293 case USB_GET_POWER_USAGE: 2294 *u.pint = ugen_get_power_usage(f); 2295 break; 2296 2297 case USB_SET_PORT_ENABLE: 2298 error = ugen_do_port_feature(f, 2299 *u.pint, 1, UHF_PORT_ENABLE); 2300 break; 2301 2302 case USB_SET_PORT_DISABLE: 2303 error = ugen_do_port_feature(f, 2304 *u.pint, 0, UHF_PORT_ENABLE); 2305 break; 2306 2307 case USB_FS_INIT: 2308 /* verify input parameters */ 2309 if (u.pinit->pEndpoints == NULL) { 2310 error = EINVAL; 2311 break; 2312 } 2313 if (u.pinit->ep_index_max > 127) { 2314 error = EINVAL; 2315 break; 2316 } 2317 if (u.pinit->ep_index_max == 0) { 2318 error = EINVAL; 2319 break; 2320 } 2321 if (f->fs_xfer != NULL) { 2322 error = EBUSY; 2323 break; 2324 } 2325 if (f->dev_ep_index != 0) { 2326 error = EINVAL; 2327 break; 2328 } 2329 if (ugen_fifo_in_use(f, fflags)) { 2330 error = EBUSY; 2331 break; 2332 } 2333 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2334 if (error) { 2335 break; 2336 } 2337 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2338 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2339 if (f->fs_xfer == NULL) { 2340 usb_fifo_free_buffer(f); 2341 error = ENOMEM; 2342 break; 2343 } 2344 f->fs_ep_max = u.pinit->ep_index_max; 2345 f->fs_ep_ptr = u.pinit->pEndpoints; 2346 break; 2347 2348 case USB_FS_UNINIT: 2349 if (u.puninit->dummy != 0) { 2350 error = EINVAL; 2351 break; 2352 } 2353 error = ugen_fs_uninit(f); 2354 break; 2355 2356 default: 2357 mtx_lock(f->priv_mtx); 2358 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2359 mtx_unlock(f->priv_mtx); 2360 break; 2361 } 2362 DPRINTFN(6, "error=%d\n", error); 2363 return (error); 2364} 2365 2366static void 2367ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2368{ 2369 ; /* workaround for a bug in "indent" */ 2370 2371 DPRINTF("st=%u alen=%u aframes=%u\n", 2372 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2373 2374 switch (USB_GET_STATE(xfer)) { 2375 case USB_ST_SETUP: 2376 usbd_transfer_submit(xfer); 2377 break; 2378 default: 2379 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2380 break; 2381 } 2382} 2383#endif /* USB_HAVE_UGEN */ 2384