Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/usb_generic.c
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1 /* $FreeBSD: releng/11.1/sys/dev/usb/usb_generic.c 305733 2016-09-12 10:14:30Z 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 85 static usb_callback_t ugen_read_clear_stall_callback; 86 static usb_callback_t ugen_write_clear_stall_callback; 87 static usb_callback_t ugen_ctrl_read_callback; 88 static usb_callback_t ugen_ctrl_write_callback; 89 static usb_callback_t ugen_isoc_read_callback; 90 static usb_callback_t ugen_isoc_write_callback; 91 static usb_callback_t ugen_ctrl_fs_callback; 92 93 static usb_fifo_open_t ugen_open; 94 static usb_fifo_close_t ugen_close; 95 static usb_fifo_ioctl_t ugen_ioctl; 96 static usb_fifo_ioctl_t ugen_ioctl_post; 97 static usb_fifo_cmd_t ugen_start_read; 98 static usb_fifo_cmd_t ugen_start_write; 99 static usb_fifo_cmd_t ugen_stop_io; 100 101 static int ugen_transfer_setup(struct usb_fifo *, 102 const struct usb_config *, uint8_t); 103 static int ugen_open_pipe_write(struct usb_fifo *); 104 static int ugen_open_pipe_read(struct usb_fifo *); 105 static int ugen_set_config(struct usb_fifo *, uint8_t); 106 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 107 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 108 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 109 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 110 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 111 struct usb_device_info *); 112 static int ugen_re_enumerate(struct usb_fifo *); 113 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 114 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 115 static int ugen_fs_uninit(struct usb_fifo *f); 116 117 /* structures */ 118 119 struct 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 131 static int ugen_debug = 0; 132 133 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 134 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RWTUN, &ugen_debug, 135 0, "Debug level"); 136 #endif 137 138 139 /* prototypes */ 140 141 static int 142 ugen_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 } 176 177 static int 178 ugen_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(6, "flag=0x%x\n", fflags); 185 186 mtx_lock(f->priv_mtx); 187 switch (usbd_get_speed(f->udev)) { 188 case USB_SPEED_LOW: 189 case USB_SPEED_FULL: 190 f->nframes = UGEN_HW_FRAMES; 191 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 192 break; 193 default: 194 f->nframes = UGEN_HW_FRAMES * 8; 195 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 196 break; 197 } 198 199 type = ed->bmAttributes & UE_XFERTYPE; 200 if (type == UE_INTERRUPT) { 201 f->bufsize = 0; /* use "wMaxPacketSize" */ 202 } 203 f->timeout = USB_NO_TIMEOUT; 204 f->flag_short = 0; 205 f->fifo_zlp = 0; 206 mtx_unlock(f->priv_mtx); 207 208 return (0); 209 } 210 211 static void 212 ugen_close(struct usb_fifo *f, int fflags) 213 { 214 DPRINTFN(6, "flag=0x%x\n", fflags); 215 216 /* cleanup */ 217 218 mtx_lock(f->priv_mtx); 219 usbd_transfer_stop(f->xfer[0]); 220 usbd_transfer_stop(f->xfer[1]); 221 mtx_unlock(f->priv_mtx); 222 223 usbd_transfer_unsetup(f->xfer, 2); 224 usb_fifo_free_buffer(f); 225 226 if (ugen_fs_uninit(f)) { 227 /* ignore any errors - we are closing */ 228 DPRINTFN(6, "no FIFOs\n"); 229 } 230 } 231 232 static int 233 ugen_open_pipe_write(struct usb_fifo *f) 234 { 235 struct usb_config usb_config[2]; 236 struct usb_endpoint *ep = usb_fifo_softc(f); 237 struct usb_endpoint_descriptor *ed = ep->edesc; 238 239 mtx_assert(f->priv_mtx, MA_OWNED); 240 241 if (f->xfer[0] || f->xfer[1]) { 242 /* transfers are already opened */ 243 return (0); 244 } 245 memset(usb_config, 0, sizeof(usb_config)); 246 247 usb_config[1].type = UE_CONTROL; 248 usb_config[1].endpoint = 0; 249 usb_config[1].direction = UE_DIR_ANY; 250 usb_config[1].timeout = 1000; /* 1 second */ 251 usb_config[1].interval = 50;/* 50 milliseconds */ 252 usb_config[1].bufsize = sizeof(struct usb_device_request); 253 usb_config[1].callback = &ugen_write_clear_stall_callback; 254 usb_config[1].usb_mode = USB_MODE_HOST; 255 256 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 257 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 258 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 259 usb_config[0].direction = UE_DIR_TX; 260 usb_config[0].interval = USB_DEFAULT_INTERVAL; 261 usb_config[0].flags.proxy_buffer = 1; 262 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 263 264 switch (ed->bmAttributes & UE_XFERTYPE) { 265 case UE_INTERRUPT: 266 case UE_BULK: 267 if (f->flag_short) { 268 usb_config[0].flags.force_short_xfer = 1; 269 } 270 usb_config[0].callback = &ugen_ctrl_write_callback; 271 usb_config[0].timeout = f->timeout; 272 usb_config[0].frames = 1; 273 usb_config[0].bufsize = f->bufsize; 274 if (ugen_transfer_setup(f, usb_config, 2)) { 275 return (EIO); 276 } 277 /* first transfer does not clear stall */ 278 f->flag_stall = 0; 279 break; 280 281 case UE_ISOCHRONOUS: 282 usb_config[0].flags.short_xfer_ok = 1; 283 usb_config[0].bufsize = 0; /* use default */ 284 usb_config[0].frames = f->nframes; 285 usb_config[0].callback = &ugen_isoc_write_callback; 286 usb_config[0].timeout = 0; 287 288 /* clone configuration */ 289 usb_config[1] = usb_config[0]; 290 291 if (ugen_transfer_setup(f, usb_config, 2)) { 292 return (EIO); 293 } 294 break; 295 default: 296 return (EINVAL); 297 } 298 return (0); 299 } 300 301 static int 302 ugen_open_pipe_read(struct usb_fifo *f) 303 { 304 struct usb_config usb_config[2]; 305 struct usb_endpoint *ep = usb_fifo_softc(f); 306 struct usb_endpoint_descriptor *ed = ep->edesc; 307 308 mtx_assert(f->priv_mtx, MA_OWNED); 309 310 if (f->xfer[0] || f->xfer[1]) { 311 /* transfers are already opened */ 312 return (0); 313 } 314 memset(usb_config, 0, sizeof(usb_config)); 315 316 usb_config[1].type = UE_CONTROL; 317 usb_config[1].endpoint = 0; 318 usb_config[1].direction = UE_DIR_ANY; 319 usb_config[1].timeout = 1000; /* 1 second */ 320 usb_config[1].interval = 50;/* 50 milliseconds */ 321 usb_config[1].bufsize = sizeof(struct usb_device_request); 322 usb_config[1].callback = &ugen_read_clear_stall_callback; 323 usb_config[1].usb_mode = USB_MODE_HOST; 324 325 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 326 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 327 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 328 usb_config[0].direction = UE_DIR_RX; 329 usb_config[0].interval = USB_DEFAULT_INTERVAL; 330 usb_config[0].flags.proxy_buffer = 1; 331 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 332 333 switch (ed->bmAttributes & UE_XFERTYPE) { 334 case UE_INTERRUPT: 335 case UE_BULK: 336 if (f->flag_short) { 337 usb_config[0].flags.short_xfer_ok = 1; 338 } 339 usb_config[0].timeout = f->timeout; 340 usb_config[0].frames = 1; 341 usb_config[0].callback = &ugen_ctrl_read_callback; 342 usb_config[0].bufsize = f->bufsize; 343 344 if (ugen_transfer_setup(f, usb_config, 2)) { 345 return (EIO); 346 } 347 /* first transfer does not clear stall */ 348 f->flag_stall = 0; 349 break; 350 351 case UE_ISOCHRONOUS: 352 usb_config[0].flags.short_xfer_ok = 1; 353 usb_config[0].bufsize = 0; /* use default */ 354 usb_config[0].frames = f->nframes; 355 usb_config[0].callback = &ugen_isoc_read_callback; 356 usb_config[0].timeout = 0; 357 358 /* clone configuration */ 359 usb_config[1] = usb_config[0]; 360 361 if (ugen_transfer_setup(f, usb_config, 2)) { 362 return (EIO); 363 } 364 break; 365 366 default: 367 return (EINVAL); 368 } 369 return (0); 370 } 371 372 static void 373 ugen_start_read(struct usb_fifo *f) 374 { 375 /* check that pipes are open */ 376 if (ugen_open_pipe_read(f)) { 377 /* signal error */ 378 usb_fifo_put_data_error(f); 379 } 380 /* start transfers */ 381 usbd_transfer_start(f->xfer[0]); 382 usbd_transfer_start(f->xfer[1]); 383 } 384 385 static void 386 ugen_start_write(struct usb_fifo *f) 387 { 388 /* check that pipes are open */ 389 if (ugen_open_pipe_write(f)) { 390 /* signal error */ 391 usb_fifo_get_data_error(f); 392 } 393 /* start transfers */ 394 usbd_transfer_start(f->xfer[0]); 395 usbd_transfer_start(f->xfer[1]); 396 } 397 398 static void 399 ugen_stop_io(struct usb_fifo *f) 400 { 401 /* stop transfers */ 402 usbd_transfer_stop(f->xfer[0]); 403 usbd_transfer_stop(f->xfer[1]); 404 } 405 406 static void 407 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 408 { 409 struct usb_fifo *f = usbd_xfer_softc(xfer); 410 struct usb_mbuf *m; 411 412 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 413 414 switch (USB_GET_STATE(xfer)) { 415 case USB_ST_TRANSFERRED: 416 if (xfer->actlen == 0) { 417 if (f->fifo_zlp != 4) { 418 f->fifo_zlp++; 419 } else { 420 /* 421 * Throttle a little bit we have multiple ZLPs 422 * in a row! 423 */ 424 xfer->interval = 64; /* ms */ 425 } 426 } else { 427 /* clear throttle */ 428 xfer->interval = 0; 429 f->fifo_zlp = 0; 430 } 431 usb_fifo_put_data(f, xfer->frbuffers, 0, 432 xfer->actlen, 1); 433 434 case USB_ST_SETUP: 435 if (f->flag_stall) { 436 usbd_transfer_start(f->xfer[1]); 437 break; 438 } 439 USB_IF_POLL(&f->free_q, m); 440 if (m) { 441 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 442 usbd_transfer_submit(xfer); 443 } 444 break; 445 446 default: /* Error */ 447 if (xfer->error != USB_ERR_CANCELLED) { 448 /* send a zero length packet to userland */ 449 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 450 f->flag_stall = 1; 451 f->fifo_zlp = 0; 452 usbd_transfer_start(f->xfer[1]); 453 } 454 break; 455 } 456 } 457 458 static void 459 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 460 { 461 struct usb_fifo *f = usbd_xfer_softc(xfer); 462 usb_frlength_t actlen; 463 464 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 465 466 switch (USB_GET_STATE(xfer)) { 467 case USB_ST_SETUP: 468 case USB_ST_TRANSFERRED: 469 /* 470 * If writing is in stall, just jump to clear stall 471 * callback and solve the situation. 472 */ 473 if (f->flag_stall) { 474 usbd_transfer_start(f->xfer[1]); 475 break; 476 } 477 /* 478 * Write data, setup and perform hardware transfer. 479 */ 480 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 481 xfer->max_data_length, &actlen, 0)) { 482 usbd_xfer_set_frame_len(xfer, 0, actlen); 483 usbd_transfer_submit(xfer); 484 } 485 break; 486 487 default: /* Error */ 488 if (xfer->error != USB_ERR_CANCELLED) { 489 f->flag_stall = 1; 490 usbd_transfer_start(f->xfer[1]); 491 } 492 break; 493 } 494 } 495 496 static void 497 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 498 { 499 struct usb_fifo *f = usbd_xfer_softc(xfer); 500 struct usb_xfer *xfer_other = f->xfer[0]; 501 502 if (f->flag_stall == 0) { 503 /* nothing to do */ 504 return; 505 } 506 if (usbd_clear_stall_callback(xfer, xfer_other)) { 507 DPRINTFN(5, "f=%p: stall cleared\n", f); 508 f->flag_stall = 0; 509 usbd_transfer_start(xfer_other); 510 } 511 } 512 513 static void 514 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 515 { 516 struct usb_fifo *f = usbd_xfer_softc(xfer); 517 struct usb_xfer *xfer_other = f->xfer[0]; 518 519 if (f->flag_stall == 0) { 520 /* nothing to do */ 521 return; 522 } 523 if (usbd_clear_stall_callback(xfer, xfer_other)) { 524 DPRINTFN(5, "f=%p: stall cleared\n", f); 525 f->flag_stall = 0; 526 usbd_transfer_start(xfer_other); 527 } 528 } 529 530 static void 531 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 532 { 533 struct usb_fifo *f = usbd_xfer_softc(xfer); 534 usb_frlength_t offset; 535 usb_frcount_t n; 536 537 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 538 539 switch (USB_GET_STATE(xfer)) { 540 case USB_ST_TRANSFERRED: 541 542 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 543 544 offset = 0; 545 546 for (n = 0; n != xfer->aframes; n++) { 547 usb_fifo_put_data(f, xfer->frbuffers, offset, 548 xfer->frlengths[n], 1); 549 offset += xfer->max_frame_size; 550 } 551 552 case USB_ST_SETUP: 553 tr_setup: 554 for (n = 0; n != xfer->nframes; n++) { 555 /* setup size for next transfer */ 556 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 557 } 558 usbd_transfer_submit(xfer); 559 break; 560 561 default: /* Error */ 562 if (xfer->error == USB_ERR_CANCELLED) { 563 break; 564 } 565 goto tr_setup; 566 } 567 } 568 569 static void 570 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 571 { 572 struct usb_fifo *f = usbd_xfer_softc(xfer); 573 usb_frlength_t actlen; 574 usb_frlength_t offset; 575 usb_frcount_t n; 576 577 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 578 579 switch (USB_GET_STATE(xfer)) { 580 case USB_ST_TRANSFERRED: 581 case USB_ST_SETUP: 582 tr_setup: 583 offset = 0; 584 for (n = 0; n != xfer->nframes; n++) { 585 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 586 xfer->max_frame_size, &actlen, 1)) { 587 usbd_xfer_set_frame_len(xfer, n, actlen); 588 offset += actlen; 589 } else { 590 break; 591 } 592 } 593 594 for (; n != xfer->nframes; n++) { 595 /* fill in zero frames */ 596 usbd_xfer_set_frame_len(xfer, n, 0); 597 } 598 usbd_transfer_submit(xfer); 599 break; 600 601 default: /* Error */ 602 if (xfer->error == USB_ERR_CANCELLED) { 603 break; 604 } 605 goto tr_setup; 606 } 607 } 608 609 static int 610 ugen_set_config(struct usb_fifo *f, uint8_t index) 611 { 612 DPRINTFN(2, "index %u\n", index); 613 614 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 615 /* not possible in device side mode */ 616 return (ENOTTY); 617 } 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 } 625 626 if (usbd_start_set_config(f->udev, index) != 0) 627 return (EIO); 628 629 return (0); 630 } 631 632 static int 633 ugen_set_interface(struct usb_fifo *f, 634 uint8_t iface_index, uint8_t alt_index) 635 { 636 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 637 638 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 639 /* not possible in device side mode */ 640 return (ENOTTY); 641 } 642 /* make sure all FIFO's are gone */ 643 /* else there can be a deadlock */ 644 if (ugen_fs_uninit(f)) { 645 /* ignore any errors */ 646 DPRINTFN(6, "no FIFOs\n"); 647 } 648 /* change setting - will free generic FIFOs, if any */ 649 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 650 return (EIO); 651 } 652 /* probe and attach */ 653 if (usb_probe_and_attach(f->udev, iface_index)) { 654 return (EIO); 655 } 656 return (0); 657 } 658 659 /*------------------------------------------------------------------------* 660 * ugen_get_cdesc 661 * 662 * This function will retrieve the complete configuration descriptor 663 * at the given index. 664 *------------------------------------------------------------------------*/ 665 static int 666 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 667 { 668 struct usb_config_descriptor *cdesc; 669 struct usb_device *udev = f->udev; 670 int error; 671 uint16_t len; 672 uint8_t free_data; 673 674 DPRINTFN(6, "\n"); 675 676 if (ugd->ugd_data == NULL) { 677 /* userland pointer should not be zero */ 678 return (EINVAL); 679 } 680 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 681 (ugd->ugd_config_index == udev->curr_config_index)) { 682 cdesc = usbd_get_config_descriptor(udev); 683 if (cdesc == NULL) 684 return (ENXIO); 685 free_data = 0; 686 687 } else { 688 #if (USB_HAVE_FIXED_CONFIG == 0) 689 if (usbd_req_get_config_desc_full(udev, 690 NULL, &cdesc, ugd->ugd_config_index)) { 691 return (ENXIO); 692 } 693 free_data = 1; 694 #else 695 /* configuration descriptor data is shared */ 696 return (EINVAL); 697 #endif 698 } 699 700 len = UGETW(cdesc->wTotalLength); 701 if (len > ugd->ugd_maxlen) { 702 len = ugd->ugd_maxlen; 703 } 704 DPRINTFN(6, "len=%u\n", len); 705 706 ugd->ugd_actlen = len; 707 ugd->ugd_offset = 0; 708 709 error = copyout(cdesc, ugd->ugd_data, len); 710 711 if (free_data) 712 usbd_free_config_desc(udev, cdesc); 713 714 return (error); 715 } 716 717 static int 718 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 719 { 720 void *ptr; 721 uint16_t size; 722 int error; 723 uint8_t do_unlock; 724 725 /* Protect scratch area */ 726 do_unlock = usbd_ctrl_lock(f->udev); 727 728 ptr = f->udev->scratch.data; 729 size = sizeof(f->udev->scratch.data); 730 731 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 732 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 733 error = EINVAL; 734 } else { 735 736 if (size > ((uint8_t *)ptr)[0]) { 737 size = ((uint8_t *)ptr)[0]; 738 } 739 if (size > ugd->ugd_maxlen) { 740 size = ugd->ugd_maxlen; 741 } 742 ugd->ugd_actlen = size; 743 ugd->ugd_offset = 0; 744 745 error = copyout(ptr, ugd->ugd_data, size); 746 } 747 if (do_unlock) 748 usbd_ctrl_unlock(f->udev); 749 750 return (error); 751 } 752 753 /*------------------------------------------------------------------------* 754 * ugen_get_iface_driver 755 * 756 * This function generates an USB interface description for userland. 757 * 758 * Returns: 759 * 0: Success 760 * Else: Failure 761 *------------------------------------------------------------------------*/ 762 static int 763 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 764 { 765 struct usb_device *udev = f->udev; 766 struct usb_interface *iface; 767 const char *ptr; 768 const char *desc; 769 unsigned int len; 770 unsigned int maxlen; 771 char buf[128]; 772 int error; 773 774 DPRINTFN(6, "\n"); 775 776 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 777 /* userland pointer should not be zero */ 778 return (EINVAL); 779 } 780 781 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 782 if ((iface == NULL) || (iface->idesc == NULL)) { 783 /* invalid interface index */ 784 return (EINVAL); 785 } 786 787 /* read out device nameunit string, if any */ 788 if ((iface->subdev != NULL) && 789 device_is_attached(iface->subdev) && 790 (ptr = device_get_nameunit(iface->subdev)) && 791 (desc = device_get_desc(iface->subdev))) { 792 793 /* print description */ 794 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 795 796 /* range checks */ 797 maxlen = ugd->ugd_maxlen - 1; 798 len = strlen(buf); 799 if (len > maxlen) 800 len = maxlen; 801 802 /* update actual length, including terminating zero */ 803 ugd->ugd_actlen = len + 1; 804 805 /* copy out interface description */ 806 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 807 } else { 808 /* zero length string is default */ 809 error = copyout("", ugd->ugd_data, 1); 810 } 811 return (error); 812 } 813 814 /*------------------------------------------------------------------------* 815 * usb_gen_fill_deviceinfo 816 * 817 * This function dumps information about an USB device to the 818 * structure pointed to by the "di" argument. 819 * 820 * Returns: 821 * 0: Success 822 * Else: Failure 823 *------------------------------------------------------------------------*/ 824 static int 825 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 826 { 827 struct usb_device *udev; 828 struct usb_device *hub; 829 830 udev = f->udev; 831 832 bzero(di, sizeof(di[0])); 833 834 di->udi_bus = device_get_unit(udev->bus->bdev); 835 di->udi_addr = udev->address; 836 di->udi_index = udev->device_index; 837 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 838 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 839 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 840 usb_printbcd(di->udi_release, sizeof(di->udi_release), 841 UGETW(udev->ddesc.bcdDevice)); 842 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 843 di->udi_productNo = UGETW(udev->ddesc.idProduct); 844 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 845 di->udi_class = udev->ddesc.bDeviceClass; 846 di->udi_subclass = udev->ddesc.bDeviceSubClass; 847 di->udi_protocol = udev->ddesc.bDeviceProtocol; 848 di->udi_config_no = udev->curr_config_no; 849 di->udi_config_index = udev->curr_config_index; 850 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 851 di->udi_speed = udev->speed; 852 di->udi_mode = udev->flags.usb_mode; 853 di->udi_power_mode = udev->power_mode; 854 di->udi_suspended = udev->flags.peer_suspended; 855 856 hub = udev->parent_hub; 857 if (hub) { 858 di->udi_hubaddr = hub->address; 859 di->udi_hubindex = hub->device_index; 860 di->udi_hubport = udev->port_no; 861 } 862 return (0); 863 } 864 865 /*------------------------------------------------------------------------* 866 * ugen_check_request 867 * 868 * Return values: 869 * 0: Access allowed 870 * Else: No access 871 *------------------------------------------------------------------------*/ 872 static int 873 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 874 { 875 struct usb_endpoint *ep; 876 int error; 877 878 /* 879 * Avoid requests that would damage the bus integrity: 880 */ 881 if (((req->bmRequestType == UT_WRITE_DEVICE) && 882 (req->bRequest == UR_SET_ADDRESS)) || 883 ((req->bmRequestType == UT_WRITE_DEVICE) && 884 (req->bRequest == UR_SET_CONFIG)) || 885 ((req->bmRequestType == UT_WRITE_INTERFACE) && 886 (req->bRequest == UR_SET_INTERFACE))) { 887 /* 888 * These requests can be useful for testing USB drivers. 889 */ 890 error = priv_check(curthread, PRIV_DRIVER); 891 if (error) { 892 return (error); 893 } 894 } 895 /* 896 * Special case - handle clearing of stall 897 */ 898 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 899 900 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 901 if (ep == NULL) { 902 return (EINVAL); 903 } 904 if ((req->bRequest == UR_CLEAR_FEATURE) && 905 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 906 usbd_clear_data_toggle(udev, ep); 907 } 908 } 909 /* TODO: add more checks to verify the interface index */ 910 911 return (0); 912 } 913 914 int 915 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 916 { 917 int error; 918 uint16_t len; 919 uint16_t actlen; 920 921 if (ugen_check_request(f->udev, &ur->ucr_request)) { 922 return (EPERM); 923 } 924 len = UGETW(ur->ucr_request.wLength); 925 926 /* check if "ucr_data" is valid */ 927 if (len != 0) { 928 if (ur->ucr_data == NULL) { 929 return (EFAULT); 930 } 931 } 932 /* do the USB request */ 933 error = usbd_do_request_flags 934 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 935 (ur->ucr_flags & USB_SHORT_XFER_OK) | 936 USB_USER_DATA_PTR, &actlen, 937 USB_DEFAULT_TIMEOUT); 938 939 ur->ucr_actlen = actlen; 940 941 if (error) { 942 error = EIO; 943 } 944 return (error); 945 } 946 947 /*------------------------------------------------------------------------ 948 * ugen_re_enumerate 949 *------------------------------------------------------------------------*/ 950 static int 951 ugen_re_enumerate(struct usb_fifo *f) 952 { 953 struct usb_device *udev = f->udev; 954 int error; 955 956 /* 957 * This request can be useful for testing USB drivers: 958 */ 959 error = priv_check(curthread, PRIV_DRIVER); 960 if (error) { 961 return (error); 962 } 963 if (udev->flags.usb_mode != USB_MODE_HOST) { 964 /* not possible in device side mode */ 965 DPRINTFN(6, "device mode\n"); 966 return (ENOTTY); 967 } 968 /* make sure all FIFO's are gone */ 969 /* else there can be a deadlock */ 970 if (ugen_fs_uninit(f)) { 971 /* ignore any errors */ 972 DPRINTFN(6, "no FIFOs\n"); 973 } 974 /* start re-enumeration of device */ 975 usbd_start_re_enumerate(udev); 976 return (0); 977 } 978 979 int 980 ugen_fs_uninit(struct usb_fifo *f) 981 { 982 if (f->fs_xfer == NULL) { 983 return (EINVAL); 984 } 985 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 986 free(f->fs_xfer, M_USB); 987 f->fs_xfer = NULL; 988 f->fs_ep_max = 0; 989 f->fs_ep_ptr = NULL; 990 f->flag_iscomplete = 0; 991 usb_fifo_free_buffer(f); 992 return (0); 993 } 994 995 static uint8_t 996 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 997 { 998 struct usb_mbuf *m; 999 1000 USB_IF_DEQUEUE(&f->used_q, m); 1001 1002 if (m) { 1003 *pindex = *((uint8_t *)(m->cur_data_ptr)); 1004 1005 USB_IF_ENQUEUE(&f->free_q, m); 1006 1007 return (0); /* success */ 1008 } else { 1009 1010 *pindex = 0; /* fix compiler warning */ 1011 1012 f->flag_iscomplete = 0; 1013 } 1014 return (1); /* failure */ 1015 } 1016 1017 static void 1018 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1019 { 1020 struct usb_mbuf *m; 1021 1022 USB_IF_DEQUEUE(&f->free_q, m); 1023 1024 if (m == NULL) { 1025 /* can happen during close */ 1026 DPRINTF("out of buffers\n"); 1027 return; 1028 } 1029 USB_MBUF_RESET(m); 1030 1031 *((uint8_t *)(m->cur_data_ptr)) = index; 1032 1033 USB_IF_ENQUEUE(&f->used_q, m); 1034 1035 f->flag_iscomplete = 1; 1036 1037 usb_fifo_wakeup(f); 1038 } 1039 1040 static int 1041 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1042 { 1043 struct usb_device_request *req; 1044 struct usb_xfer *xfer; 1045 struct usb_fs_endpoint fs_ep; 1046 void *uaddr; /* userland pointer */ 1047 void *kaddr; 1048 usb_frlength_t offset; 1049 usb_frlength_t rem; 1050 usb_frcount_t n; 1051 uint32_t length; 1052 int error; 1053 uint8_t isread; 1054 1055 if (ep_index >= f->fs_ep_max) { 1056 return (EINVAL); 1057 } 1058 xfer = f->fs_xfer[ep_index]; 1059 if (xfer == NULL) { 1060 return (EINVAL); 1061 } 1062 mtx_lock(f->priv_mtx); 1063 if (usbd_transfer_pending(xfer)) { 1064 mtx_unlock(f->priv_mtx); 1065 return (EBUSY); /* should not happen */ 1066 } 1067 mtx_unlock(f->priv_mtx); 1068 1069 error = copyin(f->fs_ep_ptr + 1070 ep_index, &fs_ep, sizeof(fs_ep)); 1071 if (error) { 1072 return (error); 1073 } 1074 /* security checks */ 1075 1076 if (fs_ep.nFrames > xfer->max_frame_count) { 1077 xfer->error = USB_ERR_INVAL; 1078 goto complete; 1079 } 1080 if (fs_ep.nFrames == 0) { 1081 xfer->error = USB_ERR_INVAL; 1082 goto complete; 1083 } 1084 error = copyin(fs_ep.ppBuffer, 1085 &uaddr, sizeof(uaddr)); 1086 if (error) { 1087 return (error); 1088 } 1089 /* reset first frame */ 1090 usbd_xfer_set_frame_offset(xfer, 0, 0); 1091 1092 if (xfer->flags_int.control_xfr) { 1093 1094 req = xfer->frbuffers[0].buffer; 1095 1096 error = copyin(fs_ep.pLength, 1097 &length, sizeof(length)); 1098 if (error) { 1099 return (error); 1100 } 1101 if (length != sizeof(*req)) { 1102 xfer->error = USB_ERR_INVAL; 1103 goto complete; 1104 } 1105 if (length != 0) { 1106 error = copyin(uaddr, req, length); 1107 if (error) { 1108 return (error); 1109 } 1110 } 1111 if (ugen_check_request(f->udev, req)) { 1112 xfer->error = USB_ERR_INVAL; 1113 goto complete; 1114 } 1115 usbd_xfer_set_frame_len(xfer, 0, length); 1116 1117 /* Host mode only ! */ 1118 if ((req->bmRequestType & 1119 (UT_READ | UT_WRITE)) == UT_READ) { 1120 isread = 1; 1121 } else { 1122 isread = 0; 1123 } 1124 n = 1; 1125 offset = sizeof(*req); 1126 1127 } else { 1128 /* Device and Host mode */ 1129 if (USB_GET_DATA_ISREAD(xfer)) { 1130 isread = 1; 1131 } else { 1132 isread = 0; 1133 } 1134 n = 0; 1135 offset = 0; 1136 } 1137 1138 rem = usbd_xfer_max_len(xfer); 1139 xfer->nframes = fs_ep.nFrames; 1140 xfer->timeout = fs_ep.timeout; 1141 if (xfer->timeout > 65535) { 1142 xfer->timeout = 65535; 1143 } 1144 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1145 xfer->flags.short_xfer_ok = 1; 1146 else 1147 xfer->flags.short_xfer_ok = 0; 1148 1149 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1150 xfer->flags.short_frames_ok = 1; 1151 else 1152 xfer->flags.short_frames_ok = 0; 1153 1154 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1155 xfer->flags.force_short_xfer = 1; 1156 else 1157 xfer->flags.force_short_xfer = 0; 1158 1159 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1160 usbd_xfer_set_stall(xfer); 1161 else 1162 xfer->flags.stall_pipe = 0; 1163 1164 for (; n != xfer->nframes; n++) { 1165 1166 error = copyin(fs_ep.pLength + n, 1167 &length, sizeof(length)); 1168 if (error) { 1169 break; 1170 } 1171 usbd_xfer_set_frame_len(xfer, n, length); 1172 1173 if (length > rem) { 1174 xfer->error = USB_ERR_INVAL; 1175 goto complete; 1176 } 1177 rem -= length; 1178 1179 if (!isread) { 1180 1181 /* we need to know the source buffer */ 1182 error = copyin(fs_ep.ppBuffer + n, 1183 &uaddr, sizeof(uaddr)); 1184 if (error) { 1185 break; 1186 } 1187 if (xfer->flags_int.isochronous_xfr) { 1188 /* get kernel buffer address */ 1189 kaddr = xfer->frbuffers[0].buffer; 1190 kaddr = USB_ADD_BYTES(kaddr, offset); 1191 } else { 1192 /* set current frame offset */ 1193 usbd_xfer_set_frame_offset(xfer, offset, n); 1194 1195 /* get kernel buffer address */ 1196 kaddr = xfer->frbuffers[n].buffer; 1197 } 1198 1199 /* move data */ 1200 error = copyin(uaddr, kaddr, length); 1201 if (error) { 1202 break; 1203 } 1204 } 1205 offset += length; 1206 } 1207 return (error); 1208 1209 complete: 1210 mtx_lock(f->priv_mtx); 1211 ugen_fs_set_complete(f, ep_index); 1212 mtx_unlock(f->priv_mtx); 1213 return (0); 1214 } 1215 1216 static int 1217 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1218 { 1219 struct usb_device_request *req; 1220 struct usb_xfer *xfer; 1221 struct usb_fs_endpoint fs_ep; 1222 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1223 void *uaddr; /* userland ptr */ 1224 void *kaddr; 1225 usb_frlength_t offset; 1226 usb_frlength_t rem; 1227 usb_frcount_t n; 1228 uint32_t length; 1229 uint32_t temp; 1230 int error; 1231 uint8_t isread; 1232 1233 if (ep_index >= f->fs_ep_max) 1234 return (EINVAL); 1235 1236 xfer = f->fs_xfer[ep_index]; 1237 if (xfer == NULL) 1238 return (EINVAL); 1239 1240 mtx_lock(f->priv_mtx); 1241 if (usbd_transfer_pending(xfer)) { 1242 mtx_unlock(f->priv_mtx); 1243 return (EBUSY); /* should not happen */ 1244 } 1245 mtx_unlock(f->priv_mtx); 1246 1247 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1248 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1249 if (error) { 1250 return (error); 1251 } 1252 fs_ep.status = xfer->error; 1253 fs_ep.aFrames = xfer->aframes; 1254 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1255 if (xfer->error) { 1256 goto complete; 1257 } 1258 if (xfer->flags_int.control_xfr) { 1259 req = xfer->frbuffers[0].buffer; 1260 1261 /* Host mode only ! */ 1262 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1263 isread = 1; 1264 } else { 1265 isread = 0; 1266 } 1267 if (xfer->nframes == 0) 1268 n = 0; /* should never happen */ 1269 else 1270 n = 1; 1271 } else { 1272 /* Device and Host mode */ 1273 if (USB_GET_DATA_ISREAD(xfer)) { 1274 isread = 1; 1275 } else { 1276 isread = 0; 1277 } 1278 n = 0; 1279 } 1280 1281 /* Update lengths and copy out data */ 1282 1283 rem = usbd_xfer_max_len(xfer); 1284 offset = 0; 1285 1286 for (; n != xfer->nframes; n++) { 1287 1288 /* get initial length into "temp" */ 1289 error = copyin(fs_ep.pLength + n, 1290 &temp, sizeof(temp)); 1291 if (error) { 1292 return (error); 1293 } 1294 if (temp > rem) { 1295 /* the userland length has been corrupted */ 1296 DPRINTF("corrupt userland length " 1297 "%u > %u\n", temp, rem); 1298 fs_ep.status = USB_ERR_INVAL; 1299 goto complete; 1300 } 1301 rem -= temp; 1302 1303 /* get actual transfer length */ 1304 length = xfer->frlengths[n]; 1305 if (length > temp) { 1306 /* data overflow */ 1307 fs_ep.status = USB_ERR_INVAL; 1308 DPRINTF("data overflow %u > %u\n", 1309 length, temp); 1310 goto complete; 1311 } 1312 if (isread) { 1313 1314 /* we need to know the destination buffer */ 1315 error = copyin(fs_ep.ppBuffer + n, 1316 &uaddr, sizeof(uaddr)); 1317 if (error) { 1318 return (error); 1319 } 1320 if (xfer->flags_int.isochronous_xfr) { 1321 /* only one frame buffer */ 1322 kaddr = USB_ADD_BYTES( 1323 xfer->frbuffers[0].buffer, offset); 1324 } else { 1325 /* multiple frame buffers */ 1326 kaddr = xfer->frbuffers[n].buffer; 1327 } 1328 1329 /* move data */ 1330 error = copyout(kaddr, uaddr, length); 1331 if (error) { 1332 return (error); 1333 } 1334 } 1335 /* 1336 * Update offset according to initial length, which is 1337 * needed by isochronous transfers! 1338 */ 1339 offset += temp; 1340 1341 /* update length */ 1342 error = copyout(&length, 1343 fs_ep.pLength + n, sizeof(length)); 1344 if (error) { 1345 return (error); 1346 } 1347 } 1348 1349 complete: 1350 /* update "aFrames" */ 1351 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1352 sizeof(fs_ep.aFrames)); 1353 if (error) 1354 goto done; 1355 1356 /* update "isoc_time_complete" */ 1357 error = copyout(&fs_ep.isoc_time_complete, 1358 &fs_ep_uptr->isoc_time_complete, 1359 sizeof(fs_ep.isoc_time_complete)); 1360 if (error) 1361 goto done; 1362 /* update "status" */ 1363 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1364 sizeof(fs_ep.status)); 1365 done: 1366 return (error); 1367 } 1368 1369 static uint8_t 1370 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1371 { 1372 struct usb_fifo *f_rx; 1373 struct usb_fifo *f_tx; 1374 1375 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1376 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1377 1378 if ((fflags & FREAD) && f_rx && 1379 (f_rx->xfer[0] || f_rx->xfer[1])) { 1380 return (1); /* RX FIFO in use */ 1381 } 1382 if ((fflags & FWRITE) && f_tx && 1383 (f_tx->xfer[0] || f_tx->xfer[1])) { 1384 return (1); /* TX FIFO in use */ 1385 } 1386 return (0); /* not in use */ 1387 } 1388 1389 static int 1390 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1391 { 1392 struct usb_config usb_config[1]; 1393 struct usb_device_request req; 1394 union { 1395 struct usb_fs_complete *pcomp; 1396 struct usb_fs_start *pstart; 1397 struct usb_fs_stop *pstop; 1398 struct usb_fs_open *popen; 1399 struct usb_fs_open_stream *popen_stream; 1400 struct usb_fs_close *pclose; 1401 struct usb_fs_clear_stall_sync *pstall; 1402 void *addr; 1403 } u; 1404 struct usb_endpoint *ep; 1405 struct usb_endpoint_descriptor *ed; 1406 struct usb_xfer *xfer; 1407 int error = 0; 1408 uint8_t iface_index; 1409 uint8_t isread; 1410 uint8_t ep_index; 1411 uint8_t pre_scale; 1412 1413 u.addr = addr; 1414 1415 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1416 1417 switch (cmd) { 1418 case USB_FS_COMPLETE: 1419 mtx_lock(f->priv_mtx); 1420 error = ugen_fs_get_complete(f, &ep_index); 1421 mtx_unlock(f->priv_mtx); 1422 1423 if (error) { 1424 error = EBUSY; 1425 break; 1426 } 1427 u.pcomp->ep_index = ep_index; 1428 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1429 break; 1430 1431 case USB_FS_START: 1432 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1433 if (error) 1434 break; 1435 mtx_lock(f->priv_mtx); 1436 xfer = f->fs_xfer[u.pstart->ep_index]; 1437 usbd_transfer_start(xfer); 1438 mtx_unlock(f->priv_mtx); 1439 break; 1440 1441 case USB_FS_STOP: 1442 if (u.pstop->ep_index >= f->fs_ep_max) { 1443 error = EINVAL; 1444 break; 1445 } 1446 mtx_lock(f->priv_mtx); 1447 xfer = f->fs_xfer[u.pstart->ep_index]; 1448 if (usbd_transfer_pending(xfer)) { 1449 usbd_transfer_stop(xfer); 1450 /* 1451 * Check if the USB transfer was stopped 1452 * before it was even started. Else a cancel 1453 * callback will be pending. 1454 */ 1455 if (!xfer->flags_int.transferring) { 1456 ugen_fs_set_complete(xfer->priv_sc, 1457 USB_P2U(xfer->priv_fifo)); 1458 } 1459 } 1460 mtx_unlock(f->priv_mtx); 1461 break; 1462 1463 case USB_FS_OPEN: 1464 case USB_FS_OPEN_STREAM: 1465 if (u.popen->ep_index >= f->fs_ep_max) { 1466 error = EINVAL; 1467 break; 1468 } 1469 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1470 error = EBUSY; 1471 break; 1472 } 1473 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1474 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1475 } 1476 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1477 pre_scale = 1; 1478 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1479 } else { 1480 pre_scale = 0; 1481 } 1482 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1483 u.popen->max_frames = USB_FS_MAX_FRAMES; 1484 break; 1485 } 1486 if (u.popen->max_frames == 0) { 1487 error = EINVAL; 1488 break; 1489 } 1490 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1491 if (ep == NULL) { 1492 error = EINVAL; 1493 break; 1494 } 1495 ed = ep->edesc; 1496 if (ed == NULL) { 1497 error = ENXIO; 1498 break; 1499 } 1500 iface_index = ep->iface_index; 1501 1502 memset(usb_config, 0, sizeof(usb_config)); 1503 1504 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1505 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1506 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1507 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1508 usb_config[0].flags.proxy_buffer = 1; 1509 if (pre_scale != 0) 1510 usb_config[0].flags.pre_scale_frames = 1; 1511 usb_config[0].callback = &ugen_ctrl_fs_callback; 1512 usb_config[0].timeout = 0; /* no timeout */ 1513 usb_config[0].frames = u.popen->max_frames; 1514 usb_config[0].bufsize = u.popen->max_bufsize; 1515 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1516 if (cmd == USB_FS_OPEN_STREAM) 1517 usb_config[0].stream_id = u.popen_stream->stream_id; 1518 1519 if (usb_config[0].type == UE_CONTROL) { 1520 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1521 error = EINVAL; 1522 break; 1523 } 1524 } else { 1525 1526 isread = ((usb_config[0].endpoint & 1527 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1528 1529 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1530 isread = !isread; 1531 } 1532 /* check permissions */ 1533 if (isread) { 1534 if (!(fflags & FREAD)) { 1535 error = EPERM; 1536 break; 1537 } 1538 } else { 1539 if (!(fflags & FWRITE)) { 1540 error = EPERM; 1541 break; 1542 } 1543 } 1544 } 1545 error = usbd_transfer_setup(f->udev, &iface_index, 1546 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1547 f, f->priv_mtx); 1548 if (error == 0) { 1549 /* update maximums */ 1550 u.popen->max_packet_length = 1551 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1552 u.popen->max_bufsize = 1553 f->fs_xfer[u.popen->ep_index]->max_data_length; 1554 /* update number of frames */ 1555 u.popen->max_frames = 1556 f->fs_xfer[u.popen->ep_index]->nframes; 1557 /* store index of endpoint */ 1558 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1559 ((uint8_t *)0) + u.popen->ep_index; 1560 } else { 1561 error = ENOMEM; 1562 } 1563 break; 1564 1565 case USB_FS_CLOSE: 1566 if (u.pclose->ep_index >= f->fs_ep_max) { 1567 error = EINVAL; 1568 break; 1569 } 1570 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1571 error = EINVAL; 1572 break; 1573 } 1574 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1575 break; 1576 1577 case USB_FS_CLEAR_STALL_SYNC: 1578 if (u.pstall->ep_index >= f->fs_ep_max) { 1579 error = EINVAL; 1580 break; 1581 } 1582 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1583 error = EINVAL; 1584 break; 1585 } 1586 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1587 error = EINVAL; 1588 break; 1589 } 1590 mtx_lock(f->priv_mtx); 1591 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1592 mtx_unlock(f->priv_mtx); 1593 1594 if (error) { 1595 return (EBUSY); 1596 } 1597 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1598 1599 /* setup a clear-stall packet */ 1600 req.bmRequestType = UT_WRITE_ENDPOINT; 1601 req.bRequest = UR_CLEAR_FEATURE; 1602 USETW(req.wValue, UF_ENDPOINT_HALT); 1603 req.wIndex[0] = ep->edesc->bEndpointAddress; 1604 req.wIndex[1] = 0; 1605 USETW(req.wLength, 0); 1606 1607 error = usbd_do_request(f->udev, NULL, &req, NULL); 1608 if (error == 0) { 1609 usbd_clear_data_toggle(f->udev, ep); 1610 } else { 1611 error = ENXIO; 1612 } 1613 break; 1614 1615 default: 1616 error = ENOIOCTL; 1617 break; 1618 } 1619 1620 DPRINTFN(6, "error=%d\n", error); 1621 1622 return (error); 1623 } 1624 1625 static int 1626 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1627 { 1628 uint8_t t; 1629 1630 if (*(int *)addr) 1631 t = 1; 1632 else 1633 t = 0; 1634 1635 if (f->flag_short == t) { 1636 /* same value like before - accept */ 1637 return (0); 1638 } 1639 if (f->xfer[0] || f->xfer[1]) { 1640 /* cannot change this during transfer */ 1641 return (EBUSY); 1642 } 1643 f->flag_short = t; 1644 return (0); 1645 } 1646 1647 static int 1648 ugen_set_timeout(struct usb_fifo *f, void *addr) 1649 { 1650 f->timeout = *(int *)addr; 1651 if (f->timeout > 65535) { 1652 /* limit user input */ 1653 f->timeout = 65535; 1654 } 1655 return (0); 1656 } 1657 1658 static int 1659 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1660 { 1661 if (f->xfer[0]) { 1662 *(int *)addr = f->xfer[0]->max_frame_size; 1663 } else { 1664 return (EINVAL); 1665 } 1666 return (0); 1667 } 1668 1669 static int 1670 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1671 { 1672 usb_frlength_t t; 1673 1674 if (*(int *)addr < 0) 1675 t = 0; /* use "wMaxPacketSize" */ 1676 else if (*(int *)addr < (256 * 1024)) 1677 t = *(int *)addr; 1678 else 1679 t = 256 * 1024; 1680 1681 if (f->bufsize == 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->bufsize = t; 1690 return (0); 1691 } 1692 1693 static int 1694 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1695 { 1696 *(int *)addr = f->bufsize; 1697 return (0); 1698 } 1699 1700 static int 1701 ugen_get_iface_desc(struct usb_fifo *f, 1702 struct usb_interface_descriptor *idesc) 1703 { 1704 struct usb_interface *iface; 1705 1706 iface = usbd_get_iface(f->udev, f->iface_index); 1707 if (iface && iface->idesc) { 1708 *idesc = *(iface->idesc); 1709 } else { 1710 return (EIO); 1711 } 1712 return (0); 1713 } 1714 1715 static int 1716 ugen_get_endpoint_desc(struct usb_fifo *f, 1717 struct usb_endpoint_descriptor *ed) 1718 { 1719 struct usb_endpoint *ep; 1720 1721 ep = usb_fifo_softc(f); 1722 1723 if (ep && ep->edesc) { 1724 *ed = *ep->edesc; 1725 } else { 1726 return (EINVAL); 1727 } 1728 return (0); 1729 } 1730 1731 static int 1732 ugen_set_power_mode(struct usb_fifo *f, int mode) 1733 { 1734 struct usb_device *udev = f->udev; 1735 int err; 1736 uint8_t old_mode; 1737 1738 if ((udev == NULL) || 1739 (udev->parent_hub == NULL)) { 1740 return (EINVAL); 1741 } 1742 err = priv_check(curthread, PRIV_DRIVER); 1743 if (err) 1744 return (err); 1745 1746 /* get old power mode */ 1747 old_mode = udev->power_mode; 1748 1749 /* if no change, then just return */ 1750 if (old_mode == mode) 1751 return (0); 1752 1753 switch (mode) { 1754 case USB_POWER_MODE_OFF: 1755 if (udev->flags.usb_mode == USB_MODE_HOST && 1756 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1757 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF; 1758 } 1759 /* set power mode will wake up the explore thread */ 1760 break; 1761 1762 case USB_POWER_MODE_ON: 1763 case USB_POWER_MODE_SAVE: 1764 break; 1765 1766 case USB_POWER_MODE_RESUME: 1767 #if USB_HAVE_POWERD 1768 /* let USB-powerd handle resume */ 1769 USB_BUS_LOCK(udev->bus); 1770 udev->pwr_save.write_refs++; 1771 udev->pwr_save.last_xfer_time = ticks; 1772 USB_BUS_UNLOCK(udev->bus); 1773 1774 /* set new power mode */ 1775 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1776 1777 /* wait for resume to complete */ 1778 usb_pause_mtx(NULL, hz / 4); 1779 1780 /* clear write reference */ 1781 USB_BUS_LOCK(udev->bus); 1782 udev->pwr_save.write_refs--; 1783 USB_BUS_UNLOCK(udev->bus); 1784 #endif 1785 mode = USB_POWER_MODE_SAVE; 1786 break; 1787 1788 case USB_POWER_MODE_SUSPEND: 1789 #if USB_HAVE_POWERD 1790 /* let USB-powerd handle suspend */ 1791 USB_BUS_LOCK(udev->bus); 1792 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1793 USB_BUS_UNLOCK(udev->bus); 1794 #endif 1795 mode = USB_POWER_MODE_SAVE; 1796 break; 1797 1798 default: 1799 return (EINVAL); 1800 } 1801 1802 if (err) 1803 return (ENXIO); /* I/O failure */ 1804 1805 /* if we are powered off we need to re-enumerate first */ 1806 if (old_mode == USB_POWER_MODE_OFF) { 1807 if (udev->flags.usb_mode == USB_MODE_HOST && 1808 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1809 udev->re_enumerate_wait = USB_RE_ENUM_START; 1810 } 1811 /* set power mode will wake up the explore thread */ 1812 } 1813 1814 /* set new power mode */ 1815 usbd_set_power_mode(udev, mode); 1816 1817 return (0); /* success */ 1818 } 1819 1820 static int 1821 ugen_get_power_mode(struct usb_fifo *f) 1822 { 1823 struct usb_device *udev = f->udev; 1824 1825 if (udev == NULL) 1826 return (USB_POWER_MODE_ON); 1827 1828 return (udev->power_mode); 1829 } 1830 1831 static int 1832 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp) 1833 { 1834 struct usb_device *udev = f->udev; 1835 struct usb_device *next; 1836 unsigned int nlevel = 0; 1837 1838 if (udev == NULL) 1839 goto error; 1840 1841 dpp->udp_bus = device_get_unit(udev->bus->bdev); 1842 dpp->udp_index = udev->device_index; 1843 1844 /* count port levels */ 1845 next = udev; 1846 while (next->parent_hub != NULL) { 1847 nlevel++; 1848 next = next->parent_hub; 1849 } 1850 1851 /* check if too many levels */ 1852 if (nlevel > USB_DEVICE_PORT_PATH_MAX) 1853 goto error; 1854 1855 /* store total level of ports */ 1856 dpp->udp_port_level = nlevel; 1857 1858 /* store port index array */ 1859 next = udev; 1860 while (next->parent_hub != NULL) { 1861 dpp->udp_port_no[--nlevel] = next->port_no; 1862 next = next->parent_hub; 1863 } 1864 return (0); /* success */ 1865 1866 error: 1867 return (EINVAL); /* failure */ 1868 } 1869 1870 static int 1871 ugen_get_power_usage(struct usb_fifo *f) 1872 { 1873 struct usb_device *udev = f->udev; 1874 1875 if (udev == NULL) 1876 return (0); 1877 1878 return (udev->power); 1879 } 1880 1881 static int 1882 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1883 uint8_t set, uint16_t feature) 1884 { 1885 struct usb_device *udev = f->udev; 1886 struct usb_hub *hub; 1887 int err; 1888 1889 err = priv_check(curthread, PRIV_DRIVER); 1890 if (err) { 1891 return (err); 1892 } 1893 if (port_no == 0) { 1894 return (EINVAL); 1895 } 1896 if ((udev == NULL) || 1897 (udev->hub == NULL)) { 1898 return (EINVAL); 1899 } 1900 hub = udev->hub; 1901 1902 if (port_no > hub->nports) { 1903 return (EINVAL); 1904 } 1905 if (set) 1906 err = usbd_req_set_port_feature(udev, 1907 NULL, port_no, feature); 1908 else 1909 err = usbd_req_clear_port_feature(udev, 1910 NULL, port_no, feature); 1911 1912 if (err) 1913 return (ENXIO); /* failure */ 1914 1915 return (0); /* success */ 1916 } 1917 1918 static int 1919 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1920 { 1921 struct usb_fifo *f_rx; 1922 struct usb_fifo *f_tx; 1923 int error = 0; 1924 1925 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1926 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1927 1928 switch (cmd) { 1929 case USB_SET_RX_SHORT_XFER: 1930 if (fflags & FREAD) { 1931 error = ugen_set_short_xfer(f_rx, addr); 1932 } else { 1933 error = EINVAL; 1934 } 1935 break; 1936 1937 case USB_SET_TX_FORCE_SHORT: 1938 if (fflags & FWRITE) { 1939 error = ugen_set_short_xfer(f_tx, addr); 1940 } else { 1941 error = EINVAL; 1942 } 1943 break; 1944 1945 case USB_SET_RX_TIMEOUT: 1946 if (fflags & FREAD) { 1947 error = ugen_set_timeout(f_rx, addr); 1948 } else { 1949 error = EINVAL; 1950 } 1951 break; 1952 1953 case USB_SET_TX_TIMEOUT: 1954 if (fflags & FWRITE) { 1955 error = ugen_set_timeout(f_tx, addr); 1956 } else { 1957 error = EINVAL; 1958 } 1959 break; 1960 1961 case USB_GET_RX_FRAME_SIZE: 1962 if (fflags & FREAD) { 1963 error = ugen_get_frame_size(f_rx, addr); 1964 } else { 1965 error = EINVAL; 1966 } 1967 break; 1968 1969 case USB_GET_TX_FRAME_SIZE: 1970 if (fflags & FWRITE) { 1971 error = ugen_get_frame_size(f_tx, addr); 1972 } else { 1973 error = EINVAL; 1974 } 1975 break; 1976 1977 case USB_SET_RX_BUFFER_SIZE: 1978 if (fflags & FREAD) { 1979 error = ugen_set_buffer_size(f_rx, addr); 1980 } else { 1981 error = EINVAL; 1982 } 1983 break; 1984 1985 case USB_SET_TX_BUFFER_SIZE: 1986 if (fflags & FWRITE) { 1987 error = ugen_set_buffer_size(f_tx, addr); 1988 } else { 1989 error = EINVAL; 1990 } 1991 break; 1992 1993 case USB_GET_RX_BUFFER_SIZE: 1994 if (fflags & FREAD) { 1995 error = ugen_get_buffer_size(f_rx, addr); 1996 } else { 1997 error = EINVAL; 1998 } 1999 break; 2000 2001 case USB_GET_TX_BUFFER_SIZE: 2002 if (fflags & FWRITE) { 2003 error = ugen_get_buffer_size(f_tx, addr); 2004 } else { 2005 error = EINVAL; 2006 } 2007 break; 2008 2009 case USB_GET_RX_INTERFACE_DESC: 2010 if (fflags & FREAD) { 2011 error = ugen_get_iface_desc(f_rx, addr); 2012 } else { 2013 error = EINVAL; 2014 } 2015 break; 2016 2017 case USB_GET_TX_INTERFACE_DESC: 2018 if (fflags & FWRITE) { 2019 error = ugen_get_iface_desc(f_tx, addr); 2020 } else { 2021 error = EINVAL; 2022 } 2023 break; 2024 2025 case USB_GET_RX_ENDPOINT_DESC: 2026 if (fflags & FREAD) { 2027 error = ugen_get_endpoint_desc(f_rx, addr); 2028 } else { 2029 error = EINVAL; 2030 } 2031 break; 2032 2033 case USB_GET_TX_ENDPOINT_DESC: 2034 if (fflags & FWRITE) { 2035 error = ugen_get_endpoint_desc(f_tx, addr); 2036 } else { 2037 error = EINVAL; 2038 } 2039 break; 2040 2041 case USB_SET_RX_STALL_FLAG: 2042 if ((fflags & FREAD) && (*(int *)addr)) { 2043 f_rx->flag_stall = 1; 2044 } 2045 break; 2046 2047 case USB_SET_TX_STALL_FLAG: 2048 if ((fflags & FWRITE) && (*(int *)addr)) { 2049 f_tx->flag_stall = 1; 2050 } 2051 break; 2052 2053 default: 2054 error = ENOIOCTL; 2055 break; 2056 } 2057 return (error); 2058 } 2059 2060 static int 2061 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2062 { 2063 union { 2064 struct usb_interface_descriptor *idesc; 2065 struct usb_alt_interface *ai; 2066 struct usb_device_descriptor *ddesc; 2067 struct usb_config_descriptor *cdesc; 2068 struct usb_device_stats *stat; 2069 struct usb_fs_init *pinit; 2070 struct usb_fs_uninit *puninit; 2071 struct usb_device_port_path *dpp; 2072 uint32_t *ptime; 2073 void *addr; 2074 int *pint; 2075 } u; 2076 struct usb_device_descriptor *dtemp; 2077 struct usb_config_descriptor *ctemp; 2078 struct usb_interface *iface; 2079 int error = 0; 2080 uint8_t n; 2081 2082 u.addr = addr; 2083 2084 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2085 2086 switch (cmd) { 2087 case USB_DISCOVER: 2088 usb_needs_explore_all(); 2089 break; 2090 2091 case USB_SETDEBUG: 2092 if (!(fflags & FWRITE)) { 2093 error = EPERM; 2094 break; 2095 } 2096 usb_debug = *(int *)addr; 2097 break; 2098 2099 case USB_GET_CONFIG: 2100 *(int *)addr = f->udev->curr_config_index; 2101 break; 2102 2103 case USB_SET_CONFIG: 2104 if (!(fflags & FWRITE)) { 2105 error = EPERM; 2106 break; 2107 } 2108 error = ugen_set_config(f, *(int *)addr); 2109 break; 2110 2111 case USB_GET_ALTINTERFACE: 2112 iface = usbd_get_iface(f->udev, 2113 u.ai->uai_interface_index); 2114 if (iface && iface->idesc) { 2115 u.ai->uai_alt_index = iface->alt_index; 2116 } else { 2117 error = EINVAL; 2118 } 2119 break; 2120 2121 case USB_SET_ALTINTERFACE: 2122 if (!(fflags & FWRITE)) { 2123 error = EPERM; 2124 break; 2125 } 2126 error = ugen_set_interface(f, 2127 u.ai->uai_interface_index, u.ai->uai_alt_index); 2128 break; 2129 2130 case USB_GET_DEVICE_DESC: 2131 dtemp = usbd_get_device_descriptor(f->udev); 2132 if (!dtemp) { 2133 error = EIO; 2134 break; 2135 } 2136 *u.ddesc = *dtemp; 2137 break; 2138 2139 case USB_GET_CONFIG_DESC: 2140 ctemp = usbd_get_config_descriptor(f->udev); 2141 if (!ctemp) { 2142 error = EIO; 2143 break; 2144 } 2145 *u.cdesc = *ctemp; 2146 break; 2147 2148 case USB_GET_FULL_DESC: 2149 error = ugen_get_cdesc(f, addr); 2150 break; 2151 2152 case USB_GET_STRING_DESC: 2153 error = ugen_get_sdesc(f, addr); 2154 break; 2155 2156 case USB_GET_IFACE_DRIVER: 2157 error = ugen_get_iface_driver(f, addr); 2158 break; 2159 2160 case USB_REQUEST: 2161 case USB_DO_REQUEST: 2162 if (!(fflags & FWRITE)) { 2163 error = EPERM; 2164 break; 2165 } 2166 error = ugen_do_request(f, addr); 2167 break; 2168 2169 case USB_DEVICEINFO: 2170 case USB_GET_DEVICEINFO: 2171 error = usb_gen_fill_deviceinfo(f, addr); 2172 break; 2173 2174 case USB_DEVICESTATS: 2175 for (n = 0; n != 4; n++) { 2176 2177 u.stat->uds_requests_fail[n] = 2178 f->udev->bus->stats_err.uds_requests[n]; 2179 2180 u.stat->uds_requests_ok[n] = 2181 f->udev->bus->stats_ok.uds_requests[n]; 2182 } 2183 break; 2184 2185 case USB_DEVICEENUMERATE: 2186 error = ugen_re_enumerate(f); 2187 break; 2188 2189 case USB_GET_PLUGTIME: 2190 *u.ptime = f->udev->plugtime; 2191 break; 2192 2193 case USB_CLAIM_INTERFACE: 2194 case USB_RELEASE_INTERFACE: 2195 /* TODO */ 2196 break; 2197 2198 case USB_IFACE_DRIVER_ACTIVE: 2199 2200 n = *u.pint & 0xFF; 2201 2202 iface = usbd_get_iface(f->udev, n); 2203 2204 if (iface && iface->subdev) 2205 error = 0; 2206 else 2207 error = ENXIO; 2208 break; 2209 2210 case USB_IFACE_DRIVER_DETACH: 2211 2212 error = priv_check(curthread, PRIV_DRIVER); 2213 2214 if (error) 2215 break; 2216 2217 n = *u.pint & 0xFF; 2218 2219 if (n == USB_IFACE_INDEX_ANY) { 2220 error = EINVAL; 2221 break; 2222 } 2223 2224 /* 2225 * Detach the currently attached driver. 2226 */ 2227 usb_detach_device(f->udev, n, 0); 2228 2229 /* 2230 * Set parent to self, this should keep attach away 2231 * until the next set configuration event. 2232 */ 2233 usbd_set_parent_iface(f->udev, n, n); 2234 break; 2235 2236 case USB_SET_POWER_MODE: 2237 error = ugen_set_power_mode(f, *u.pint); 2238 break; 2239 2240 case USB_GET_POWER_MODE: 2241 *u.pint = ugen_get_power_mode(f); 2242 break; 2243 2244 case USB_GET_DEV_PORT_PATH: 2245 error = ugen_get_port_path(f, u.dpp); 2246 break; 2247 2248 case USB_GET_POWER_USAGE: 2249 *u.pint = ugen_get_power_usage(f); 2250 break; 2251 2252 case USB_SET_PORT_ENABLE: 2253 error = ugen_do_port_feature(f, 2254 *u.pint, 1, UHF_PORT_ENABLE); 2255 break; 2256 2257 case USB_SET_PORT_DISABLE: 2258 error = ugen_do_port_feature(f, 2259 *u.pint, 0, UHF_PORT_ENABLE); 2260 break; 2261 2262 case USB_FS_INIT: 2263 /* verify input parameters */ 2264 if (u.pinit->pEndpoints == NULL) { 2265 error = EINVAL; 2266 break; 2267 } 2268 if (u.pinit->ep_index_max > 127) { 2269 error = EINVAL; 2270 break; 2271 } 2272 if (u.pinit->ep_index_max == 0) { 2273 error = EINVAL; 2274 break; 2275 } 2276 if (f->fs_xfer != NULL) { 2277 error = EBUSY; 2278 break; 2279 } 2280 if (f->dev_ep_index != 0) { 2281 error = EINVAL; 2282 break; 2283 } 2284 if (ugen_fifo_in_use(f, fflags)) { 2285 error = EBUSY; 2286 break; 2287 } 2288 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2289 if (error) { 2290 break; 2291 } 2292 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2293 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2294 if (f->fs_xfer == NULL) { 2295 usb_fifo_free_buffer(f); 2296 error = ENOMEM; 2297 break; 2298 } 2299 f->fs_ep_max = u.pinit->ep_index_max; 2300 f->fs_ep_ptr = u.pinit->pEndpoints; 2301 break; 2302 2303 case USB_FS_UNINIT: 2304 if (u.puninit->dummy != 0) { 2305 error = EINVAL; 2306 break; 2307 } 2308 error = ugen_fs_uninit(f); 2309 break; 2310 2311 default: 2312 mtx_lock(f->priv_mtx); 2313 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2314 mtx_unlock(f->priv_mtx); 2315 break; 2316 } 2317 DPRINTFN(6, "error=%d\n", error); 2318 return (error); 2319 } 2320 2321 static void 2322 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2323 { 2324 ; /* workaround for a bug in "indent" */ 2325 2326 DPRINTF("st=%u alen=%u aframes=%u\n", 2327 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2328 2329 switch (USB_GET_STATE(xfer)) { 2330 case USB_ST_SETUP: 2331 usbd_transfer_submit(xfer); 2332 break; 2333 default: 2334 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2335 break; 2336 } 2337 } 2338 #endif /* USB_HAVE_UGEN */
Cache object: 35db83d81cb8cc9cb86774ee361c0141
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