1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/stdint.h> 28 #include <sys/stddef.h> 29 #include <sys/param.h> 30 #include <sys/queue.h> 31 #include <sys/types.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/bus.h> 35 #include <sys/module.h> 36 #include <sys/lock.h> 37 #include <sys/mutex.h> 38 #include <sys/condvar.h> 39 #include <sys/sysctl.h> 40 #include <sys/sx.h> 41 #include <sys/unistd.h> 42 #include <sys/callout.h> 43 #include <sys/malloc.h> 44 #include <sys/priv.h> 45 #include <sys/conf.h> 46 #include <sys/fcntl.h> 47 48 #include <dev/usb/usb.h> 49 #include <dev/usb/usb_ioctl.h> 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdi_util.h> 52 53 #define USB_DEBUG_VAR ugen_debug 54 55 #include <dev/usb/usb_core.h> 56 #include <dev/usb/usb_dev.h> 57 #include <dev/usb/usb_mbuf.h> 58 #include <dev/usb/usb_process.h> 59 #include <dev/usb/usb_device.h> 60 #include <dev/usb/usb_debug.h> 61 #include <dev/usb/usb_request.h> 62 #include <dev/usb/usb_busdma.h> 63 #include <dev/usb/usb_util.h> 64 #include <dev/usb/usb_hub.h> 65 #include <dev/usb/usb_generic.h> 66 #include <dev/usb/usb_transfer.h> 67 68 #include <dev/usb/usb_controller.h> 69 #include <dev/usb/usb_bus.h> 70 71 #if USB_HAVE_UGEN 72 73 /* defines */ 74 75 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 76 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 77 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 78 79 /* function prototypes */ 80 81 static usb_callback_t ugen_read_clear_stall_callback; 82 static usb_callback_t ugen_write_clear_stall_callback; 83 static usb_callback_t ugen_ctrl_read_callback; 84 static usb_callback_t ugen_ctrl_write_callback; 85 static usb_callback_t ugen_isoc_read_callback; 86 static usb_callback_t ugen_isoc_write_callback; 87 static usb_callback_t ugen_ctrl_fs_callback; 88 89 static usb_fifo_open_t ugen_open; 90 static usb_fifo_close_t ugen_close; 91 static usb_fifo_ioctl_t ugen_ioctl; 92 static usb_fifo_ioctl_t ugen_ioctl_post; 93 static usb_fifo_cmd_t ugen_start_read; 94 static usb_fifo_cmd_t ugen_start_write; 95 static usb_fifo_cmd_t ugen_stop_io; 96 97 static int ugen_transfer_setup(struct usb_fifo *, 98 const struct usb_config *, uint8_t); 99 static int ugen_open_pipe_write(struct usb_fifo *); 100 static int ugen_open_pipe_read(struct usb_fifo *); 101 static int ugen_set_config(struct usb_fifo *, uint8_t); 102 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 103 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 104 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 105 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 106 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 107 struct usb_device_info *); 108 static int ugen_re_enumerate(struct usb_fifo *); 109 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 110 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 111 static int ugen_fs_uninit(struct usb_fifo *f); 112 113 /* structures */ 114 115 struct usb_fifo_methods usb_ugen_methods = { 116 .f_open = &ugen_open, 117 .f_close = &ugen_close, 118 .f_ioctl = &ugen_ioctl, 119 .f_ioctl_post = &ugen_ioctl_post, 120 .f_start_read = &ugen_start_read, 121 .f_stop_read = &ugen_stop_io, 122 .f_start_write = &ugen_start_write, 123 .f_stop_write = &ugen_stop_io, 124 }; 125 126 #ifdef USB_DEBUG 127 static int ugen_debug = 0; 128 129 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 130 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 131 0, "Debug level"); 132 133 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug); 134 #endif 135 136 137 /* prototypes */ 138 139 static int 140 ugen_transfer_setup(struct usb_fifo *f, 141 const struct usb_config *setup, uint8_t n_setup) 142 { 143 struct usb_endpoint *ep = usb_fifo_softc(f); 144 struct usb_device *udev = f->udev; 145 uint8_t iface_index = ep->iface_index; 146 int error; 147 148 mtx_unlock(f->priv_mtx); 149 150 /* 151 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 152 * exiting the mutex and checking things 153 */ 154 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 155 setup, n_setup, f, f->priv_mtx); 156 if (error == 0) { 157 158 if (f->xfer[0]->nframes == 1) { 159 error = usb_fifo_alloc_buffer(f, 160 f->xfer[0]->max_data_length, 2); 161 } else { 162 error = usb_fifo_alloc_buffer(f, 163 f->xfer[0]->max_frame_size, 164 2 * f->xfer[0]->nframes); 165 } 166 if (error) { 167 usbd_transfer_unsetup(f->xfer, n_setup); 168 } 169 } 170 mtx_lock(f->priv_mtx); 171 172 return (error); 173 } 174 175 static int 176 ugen_open(struct usb_fifo *f, int fflags) 177 { 178 struct usb_endpoint *ep = usb_fifo_softc(f); 179 struct usb_endpoint_descriptor *ed = ep->edesc; 180 uint8_t type; 181 182 DPRINTFN(6, "flag=0x%x\n", fflags); 183 184 mtx_lock(f->priv_mtx); 185 switch (usbd_get_speed(f->udev)) { 186 case USB_SPEED_LOW: 187 case USB_SPEED_FULL: 188 f->nframes = UGEN_HW_FRAMES; 189 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 190 break; 191 default: 192 f->nframes = UGEN_HW_FRAMES * 8; 193 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 194 break; 195 } 196 197 type = ed->bmAttributes & UE_XFERTYPE; 198 if (type == UE_INTERRUPT) { 199 f->bufsize = 0; /* use "wMaxPacketSize" */ 200 } 201 f->timeout = USB_NO_TIMEOUT; 202 f->flag_short = 0; 203 f->fifo_zlp = 0; 204 mtx_unlock(f->priv_mtx); 205 206 return (0); 207 } 208 209 static void 210 ugen_close(struct usb_fifo *f, int fflags) 211 { 212 DPRINTFN(6, "flag=0x%x\n", fflags); 213 214 /* cleanup */ 215 216 mtx_lock(f->priv_mtx); 217 usbd_transfer_stop(f->xfer[0]); 218 usbd_transfer_stop(f->xfer[1]); 219 mtx_unlock(f->priv_mtx); 220 221 usbd_transfer_unsetup(f->xfer, 2); 222 usb_fifo_free_buffer(f); 223 224 if (ugen_fs_uninit(f)) { 225 /* ignore any errors - we are closing */ 226 DPRINTFN(6, "no FIFOs\n"); 227 } 228 } 229 230 static int 231 ugen_open_pipe_write(struct usb_fifo *f) 232 { 233 struct usb_config usb_config[2]; 234 struct usb_endpoint *ep = usb_fifo_softc(f); 235 struct usb_endpoint_descriptor *ed = ep->edesc; 236 237 mtx_assert(f->priv_mtx, MA_OWNED); 238 239 if (f->xfer[0] || f->xfer[1]) { 240 /* transfers are already opened */ 241 return (0); 242 } 243 memset(usb_config, 0, sizeof(usb_config)); 244 245 usb_config[1].type = UE_CONTROL; 246 usb_config[1].endpoint = 0; 247 usb_config[1].direction = UE_DIR_ANY; 248 usb_config[1].timeout = 1000; /* 1 second */ 249 usb_config[1].interval = 50;/* 50 milliseconds */ 250 usb_config[1].bufsize = sizeof(struct usb_device_request); 251 usb_config[1].callback = &ugen_write_clear_stall_callback; 252 usb_config[1].usb_mode = USB_MODE_HOST; 253 254 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 255 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 256 usb_config[0].direction = UE_DIR_TX; 257 usb_config[0].interval = USB_DEFAULT_INTERVAL; 258 usb_config[0].flags.proxy_buffer = 1; 259 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 260 261 switch (ed->bmAttributes & UE_XFERTYPE) { 262 case UE_INTERRUPT: 263 case UE_BULK: 264 if (f->flag_short) { 265 usb_config[0].flags.force_short_xfer = 1; 266 } 267 usb_config[0].callback = &ugen_ctrl_write_callback; 268 usb_config[0].timeout = f->timeout; 269 usb_config[0].frames = 1; 270 usb_config[0].bufsize = f->bufsize; 271 if (ugen_transfer_setup(f, usb_config, 2)) { 272 return (EIO); 273 } 274 /* first transfer does not clear stall */ 275 f->flag_stall = 0; 276 break; 277 278 case UE_ISOCHRONOUS: 279 usb_config[0].flags.short_xfer_ok = 1; 280 usb_config[0].bufsize = 0; /* use default */ 281 usb_config[0].frames = f->nframes; 282 usb_config[0].callback = &ugen_isoc_write_callback; 283 usb_config[0].timeout = 0; 284 285 /* clone configuration */ 286 usb_config[1] = usb_config[0]; 287 288 if (ugen_transfer_setup(f, usb_config, 2)) { 289 return (EIO); 290 } 291 break; 292 default: 293 return (EINVAL); 294 } 295 return (0); 296 } 297 298 static int 299 ugen_open_pipe_read(struct usb_fifo *f) 300 { 301 struct usb_config usb_config[2]; 302 struct usb_endpoint *ep = usb_fifo_softc(f); 303 struct usb_endpoint_descriptor *ed = ep->edesc; 304 305 mtx_assert(f->priv_mtx, MA_OWNED); 306 307 if (f->xfer[0] || f->xfer[1]) { 308 /* transfers are already opened */ 309 return (0); 310 } 311 memset(usb_config, 0, sizeof(usb_config)); 312 313 usb_config[1].type = UE_CONTROL; 314 usb_config[1].endpoint = 0; 315 usb_config[1].direction = UE_DIR_ANY; 316 usb_config[1].timeout = 1000; /* 1 second */ 317 usb_config[1].interval = 50;/* 50 milliseconds */ 318 usb_config[1].bufsize = sizeof(struct usb_device_request); 319 usb_config[1].callback = &ugen_read_clear_stall_callback; 320 usb_config[1].usb_mode = USB_MODE_HOST; 321 322 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 323 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 324 usb_config[0].direction = UE_DIR_RX; 325 usb_config[0].interval = USB_DEFAULT_INTERVAL; 326 usb_config[0].flags.proxy_buffer = 1; 327 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 328 329 switch (ed->bmAttributes & UE_XFERTYPE) { 330 case UE_INTERRUPT: 331 case UE_BULK: 332 if (f->flag_short) { 333 usb_config[0].flags.short_xfer_ok = 1; 334 } 335 usb_config[0].timeout = f->timeout; 336 usb_config[0].frames = 1; 337 usb_config[0].callback = &ugen_ctrl_read_callback; 338 usb_config[0].bufsize = f->bufsize; 339 340 if (ugen_transfer_setup(f, usb_config, 2)) { 341 return (EIO); 342 } 343 /* first transfer does not clear stall */ 344 f->flag_stall = 0; 345 break; 346 347 case UE_ISOCHRONOUS: 348 usb_config[0].flags.short_xfer_ok = 1; 349 usb_config[0].bufsize = 0; /* use default */ 350 usb_config[0].frames = f->nframes; 351 usb_config[0].callback = &ugen_isoc_read_callback; 352 usb_config[0].timeout = 0; 353 354 /* clone configuration */ 355 usb_config[1] = usb_config[0]; 356 357 if (ugen_transfer_setup(f, usb_config, 2)) { 358 return (EIO); 359 } 360 break; 361 362 default: 363 return (EINVAL); 364 } 365 return (0); 366 } 367 368 static void 369 ugen_start_read(struct usb_fifo *f) 370 { 371 /* check that pipes are open */ 372 if (ugen_open_pipe_read(f)) { 373 /* signal error */ 374 usb_fifo_put_data_error(f); 375 } 376 /* start transfers */ 377 usbd_transfer_start(f->xfer[0]); 378 usbd_transfer_start(f->xfer[1]); 379 } 380 381 static void 382 ugen_start_write(struct usb_fifo *f) 383 { 384 /* check that pipes are open */ 385 if (ugen_open_pipe_write(f)) { 386 /* signal error */ 387 usb_fifo_get_data_error(f); 388 } 389 /* start transfers */ 390 usbd_transfer_start(f->xfer[0]); 391 usbd_transfer_start(f->xfer[1]); 392 } 393 394 static void 395 ugen_stop_io(struct usb_fifo *f) 396 { 397 /* stop transfers */ 398 usbd_transfer_stop(f->xfer[0]); 399 usbd_transfer_stop(f->xfer[1]); 400 } 401 402 static void 403 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 404 { 405 struct usb_fifo *f = usbd_xfer_softc(xfer); 406 struct usb_mbuf *m; 407 408 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 409 410 switch (USB_GET_STATE(xfer)) { 411 case USB_ST_TRANSFERRED: 412 if (xfer->actlen == 0) { 413 if (f->fifo_zlp != 4) { 414 f->fifo_zlp++; 415 } else { 416 /* 417 * Throttle a little bit we have multiple ZLPs 418 * in a row! 419 */ 420 xfer->interval = 64; /* ms */ 421 } 422 } else { 423 /* clear throttle */ 424 xfer->interval = 0; 425 f->fifo_zlp = 0; 426 } 427 usb_fifo_put_data(f, xfer->frbuffers, 0, 428 xfer->actlen, 1); 429 430 case USB_ST_SETUP: 431 if (f->flag_stall) { 432 usbd_transfer_start(f->xfer[1]); 433 break; 434 } 435 USB_IF_POLL(&f->free_q, m); 436 if (m) { 437 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 438 usbd_transfer_submit(xfer); 439 } 440 break; 441 442 default: /* Error */ 443 if (xfer->error != USB_ERR_CANCELLED) { 444 /* send a zero length packet to userland */ 445 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 446 f->flag_stall = 1; 447 f->fifo_zlp = 0; 448 usbd_transfer_start(f->xfer[1]); 449 } 450 break; 451 } 452 } 453 454 static void 455 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 456 { 457 struct usb_fifo *f = usbd_xfer_softc(xfer); 458 usb_frlength_t actlen; 459 460 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 461 462 switch (USB_GET_STATE(xfer)) { 463 case USB_ST_SETUP: 464 case USB_ST_TRANSFERRED: 465 /* 466 * If writing is in stall, just jump to clear stall 467 * callback and solve the situation. 468 */ 469 if (f->flag_stall) { 470 usbd_transfer_start(f->xfer[1]); 471 break; 472 } 473 /* 474 * Write data, setup and perform hardware transfer. 475 */ 476 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 477 xfer->max_data_length, &actlen, 0)) { 478 usbd_xfer_set_frame_len(xfer, 0, actlen); 479 usbd_transfer_submit(xfer); 480 } 481 break; 482 483 default: /* Error */ 484 if (xfer->error != USB_ERR_CANCELLED) { 485 f->flag_stall = 1; 486 usbd_transfer_start(f->xfer[1]); 487 } 488 break; 489 } 490 } 491 492 static void 493 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 494 { 495 struct usb_fifo *f = usbd_xfer_softc(xfer); 496 struct usb_xfer *xfer_other = f->xfer[0]; 497 498 if (f->flag_stall == 0) { 499 /* nothing to do */ 500 return; 501 } 502 if (usbd_clear_stall_callback(xfer, xfer_other)) { 503 DPRINTFN(5, "f=%p: stall cleared\n", f); 504 f->flag_stall = 0; 505 usbd_transfer_start(xfer_other); 506 } 507 } 508 509 static void 510 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 511 { 512 struct usb_fifo *f = usbd_xfer_softc(xfer); 513 struct usb_xfer *xfer_other = f->xfer[0]; 514 515 if (f->flag_stall == 0) { 516 /* nothing to do */ 517 return; 518 } 519 if (usbd_clear_stall_callback(xfer, xfer_other)) { 520 DPRINTFN(5, "f=%p: stall cleared\n", f); 521 f->flag_stall = 0; 522 usbd_transfer_start(xfer_other); 523 } 524 } 525 526 static void 527 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 528 { 529 struct usb_fifo *f = usbd_xfer_softc(xfer); 530 usb_frlength_t offset; 531 usb_frcount_t n; 532 533 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 534 535 switch (USB_GET_STATE(xfer)) { 536 case USB_ST_TRANSFERRED: 537 538 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 539 540 offset = 0; 541 542 for (n = 0; n != xfer->aframes; n++) { 543 usb_fifo_put_data(f, xfer->frbuffers, offset, 544 xfer->frlengths[n], 1); 545 offset += xfer->max_frame_size; 546 } 547 548 case USB_ST_SETUP: 549 tr_setup: 550 for (n = 0; n != xfer->nframes; n++) { 551 /* setup size for next transfer */ 552 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 553 } 554 usbd_transfer_submit(xfer); 555 break; 556 557 default: /* Error */ 558 if (xfer->error == USB_ERR_CANCELLED) { 559 break; 560 } 561 goto tr_setup; 562 } 563 } 564 565 static void 566 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 567 { 568 struct usb_fifo *f = usbd_xfer_softc(xfer); 569 usb_frlength_t actlen; 570 usb_frlength_t offset; 571 usb_frcount_t n; 572 573 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 574 575 switch (USB_GET_STATE(xfer)) { 576 case USB_ST_TRANSFERRED: 577 case USB_ST_SETUP: 578 tr_setup: 579 offset = 0; 580 for (n = 0; n != xfer->nframes; n++) { 581 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 582 xfer->max_frame_size, &actlen, 1)) { 583 usbd_xfer_set_frame_len(xfer, n, actlen); 584 offset += actlen; 585 } else { 586 break; 587 } 588 } 589 590 for (; n != xfer->nframes; n++) { 591 /* fill in zero frames */ 592 usbd_xfer_set_frame_len(xfer, n, 0); 593 } 594 usbd_transfer_submit(xfer); 595 break; 596 597 default: /* Error */ 598 if (xfer->error == USB_ERR_CANCELLED) { 599 break; 600 } 601 goto tr_setup; 602 } 603 } 604 605 static int 606 ugen_set_config(struct usb_fifo *f, uint8_t index) 607 { 608 DPRINTFN(2, "index %u\n", index); 609 610 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 611 /* not possible in device side mode */ 612 return (ENOTTY); 613 } 614 if (f->udev->curr_config_index == index) { 615 /* no change needed */ 616 return (0); 617 } 618 /* make sure all FIFO's are gone */ 619 /* else there can be a deadlock */ 620 if (ugen_fs_uninit(f)) { 621 /* ignore any errors */ 622 DPRINTFN(6, "no FIFOs\n"); 623 } 624 /* change setting - will free generic FIFOs, if any */ 625 if (usbd_set_config_index(f->udev, index)) { 626 return (EIO); 627 } 628 /* probe and attach */ 629 if (usb_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) { 630 return (EIO); 631 } 632 return (0); 633 } 634 635 static int 636 ugen_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 *------------------------------------------------------------------------*/ 668 static int 669 ugen_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 } 689 free_data = 0; 690 691 } else { 692 if (usbd_req_get_config_desc_full(udev, 693 NULL, &cdesc, M_USBDEV, 694 ugd->ugd_config_index)) { 695 return (ENXIO); 696 } 697 free_data = 1; 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 free(cdesc, M_USBDEV); 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 = f->udev->bus->scratch[0].data; 721 uint16_t size = sizeof(f->udev->bus->scratch[0].data); 722 int error; 723 724 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 725 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 726 error = EINVAL; 727 } else { 728 729 if (size > ((uint8_t *)ptr)[0]) { 730 size = ((uint8_t *)ptr)[0]; 731 } 732 if (size > ugd->ugd_maxlen) { 733 size = ugd->ugd_maxlen; 734 } 735 ugd->ugd_actlen = size; 736 ugd->ugd_offset = 0; 737 738 error = copyout(ptr, ugd->ugd_data, size); 739 } 740 return (error); 741 } 742 743 /*------------------------------------------------------------------------* 744 * ugen_get_iface_driver 745 * 746 * This function generates an USB interface description for userland. 747 * 748 * Returns: 749 * 0: Success 750 * Else: Failure 751 *------------------------------------------------------------------------*/ 752 static int 753 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 754 { 755 struct usb_device *udev = f->udev; 756 struct usb_interface *iface; 757 const char *ptr; 758 const char *desc; 759 unsigned int len; 760 unsigned int maxlen; 761 char buf[128]; 762 int error; 763 764 DPRINTFN(6, "\n"); 765 766 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 767 /* userland pointer should not be zero */ 768 return (EINVAL); 769 } 770 771 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 772 if ((iface == NULL) || (iface->idesc == NULL)) { 773 /* invalid interface index */ 774 return (EINVAL); 775 } 776 777 /* read out device nameunit string, if any */ 778 if ((iface->subdev != NULL) && 779 device_is_attached(iface->subdev) && 780 (ptr = device_get_nameunit(iface->subdev)) && 781 (desc = device_get_desc(iface->subdev))) { 782 783 /* print description */ 784 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 785 786 /* range checks */ 787 maxlen = ugd->ugd_maxlen - 1; 788 len = strlen(buf); 789 if (len > maxlen) 790 len = maxlen; 791 792 /* update actual length, including terminating zero */ 793 ugd->ugd_actlen = len + 1; 794 795 /* copy out interface description */ 796 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 797 } else { 798 /* zero length string is default */ 799 error = copyout("", ugd->ugd_data, 1); 800 } 801 return (error); 802 } 803 804 /*------------------------------------------------------------------------* 805 * usb_gen_fill_deviceinfo 806 * 807 * This function dumps information about an USB device to the 808 * structure pointed to by the "di" argument. 809 * 810 * Returns: 811 * 0: Success 812 * Else: Failure 813 *------------------------------------------------------------------------*/ 814 static int 815 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 816 { 817 struct usb_device *udev; 818 struct usb_device *hub; 819 820 udev = f->udev; 821 822 bzero(di, sizeof(di[0])); 823 824 di->udi_bus = device_get_unit(udev->bus->bdev); 825 di->udi_addr = udev->address; 826 di->udi_index = udev->device_index; 827 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 828 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 829 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 830 usb_printbcd(di->udi_release, sizeof(di->udi_release), 831 UGETW(udev->ddesc.bcdDevice)); 832 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 833 di->udi_productNo = UGETW(udev->ddesc.idProduct); 834 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 835 di->udi_class = udev->ddesc.bDeviceClass; 836 di->udi_subclass = udev->ddesc.bDeviceSubClass; 837 di->udi_protocol = udev->ddesc.bDeviceProtocol; 838 di->udi_config_no = udev->curr_config_no; 839 di->udi_config_index = udev->curr_config_index; 840 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 841 di->udi_speed = udev->speed; 842 di->udi_mode = udev->flags.usb_mode; 843 di->udi_power_mode = udev->power_mode; 844 di->udi_suspended = udev->flags.peer_suspended; 845 846 hub = udev->parent_hub; 847 if (hub) { 848 di->udi_hubaddr = hub->address; 849 di->udi_hubindex = hub->device_index; 850 di->udi_hubport = udev->port_no; 851 } 852 return (0); 853 } 854 855 /*------------------------------------------------------------------------* 856 * ugen_check_request 857 * 858 * Return values: 859 * 0: Access allowed 860 * Else: No access 861 *------------------------------------------------------------------------*/ 862 static int 863 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 864 { 865 struct usb_endpoint *ep; 866 int error; 867 868 /* 869 * Avoid requests that would damage the bus integrity: 870 */ 871 if (((req->bmRequestType == UT_WRITE_DEVICE) && 872 (req->bRequest == UR_SET_ADDRESS)) || 873 ((req->bmRequestType == UT_WRITE_DEVICE) && 874 (req->bRequest == UR_SET_CONFIG)) || 875 ((req->bmRequestType == UT_WRITE_INTERFACE) && 876 (req->bRequest == UR_SET_INTERFACE))) { 877 /* 878 * These requests can be useful for testing USB drivers. 879 */ 880 error = priv_check(curthread, PRIV_DRIVER); 881 if (error) { 882 return (error); 883 } 884 } 885 /* 886 * Special case - handle clearing of stall 887 */ 888 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 889 890 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 891 if (ep == NULL) { 892 return (EINVAL); 893 } 894 if ((req->bRequest == UR_CLEAR_FEATURE) && 895 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 896 usbd_clear_data_toggle(udev, ep); 897 } 898 } 899 /* TODO: add more checks to verify the interface index */ 900 901 return (0); 902 } 903 904 int 905 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 906 { 907 int error; 908 uint16_t len; 909 uint16_t actlen; 910 911 if (ugen_check_request(f->udev, &ur->ucr_request)) { 912 return (EPERM); 913 } 914 len = UGETW(ur->ucr_request.wLength); 915 916 /* check if "ucr_data" is valid */ 917 if (len != 0) { 918 if (ur->ucr_data == NULL) { 919 return (EFAULT); 920 } 921 } 922 /* do the USB request */ 923 error = usbd_do_request_flags 924 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 925 (ur->ucr_flags & USB_SHORT_XFER_OK) | 926 USB_USER_DATA_PTR, &actlen, 927 USB_DEFAULT_TIMEOUT); 928 929 ur->ucr_actlen = actlen; 930 931 if (error) { 932 error = EIO; 933 } 934 return (error); 935 } 936 937 /*------------------------------------------------------------------------ 938 * ugen_re_enumerate 939 *------------------------------------------------------------------------*/ 940 static int 941 ugen_re_enumerate(struct usb_fifo *f) 942 { 943 struct usb_device *udev = f->udev; 944 int error; 945 946 /* 947 * This request can be useful for testing USB drivers: 948 */ 949 error = priv_check(curthread, PRIV_DRIVER); 950 if (error) { 951 return (error); 952 } 953 if (udev->flags.usb_mode != USB_MODE_HOST) { 954 /* not possible in device side mode */ 955 DPRINTFN(6, "device mode\n"); 956 return (ENOTTY); 957 } 958 if (udev->parent_hub == NULL) { 959 /* the root HUB cannot be re-enumerated */ 960 DPRINTFN(6, "cannot reset root HUB\n"); 961 return (EINVAL); 962 } 963 /* make sure all FIFO's are gone */ 964 /* else there can be a deadlock */ 965 if (ugen_fs_uninit(f)) { 966 /* ignore any errors */ 967 DPRINTFN(6, "no FIFOs\n"); 968 } 969 /* start re-enumeration of device */ 970 usbd_start_re_enumerate(udev); 971 return (0); 972 } 973 974 int 975 ugen_fs_uninit(struct usb_fifo *f) 976 { 977 if (f->fs_xfer == NULL) { 978 return (EINVAL); 979 } 980 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 981 free(f->fs_xfer, M_USB); 982 f->fs_xfer = NULL; 983 f->fs_ep_max = 0; 984 f->fs_ep_ptr = NULL; 985 f->flag_iscomplete = 0; 986 usb_fifo_free_buffer(f); 987 return (0); 988 } 989 990 static uint8_t 991 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 992 { 993 struct usb_mbuf *m; 994 995 USB_IF_DEQUEUE(&f->used_q, m); 996 997 if (m) { 998 *pindex = *((uint8_t *)(m->cur_data_ptr)); 999 1000 USB_IF_ENQUEUE(&f->free_q, m); 1001 1002 return (0); /* success */ 1003 } else { 1004 1005 *pindex = 0; /* fix compiler warning */ 1006 1007 f->flag_iscomplete = 0; 1008 } 1009 return (1); /* failure */ 1010 } 1011 1012 static void 1013 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1014 { 1015 struct usb_mbuf *m; 1016 1017 USB_IF_DEQUEUE(&f->free_q, m); 1018 1019 if (m == NULL) { 1020 /* can happen during close */ 1021 DPRINTF("out of buffers\n"); 1022 return; 1023 } 1024 USB_MBUF_RESET(m); 1025 1026 *((uint8_t *)(m->cur_data_ptr)) = index; 1027 1028 USB_IF_ENQUEUE(&f->used_q, m); 1029 1030 f->flag_iscomplete = 1; 1031 1032 usb_fifo_wakeup(f); 1033 } 1034 1035 static int 1036 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1037 { 1038 struct usb_device_request *req; 1039 struct usb_xfer *xfer; 1040 struct usb_fs_endpoint fs_ep; 1041 void *uaddr; /* userland pointer */ 1042 void *kaddr; 1043 usb_frlength_t offset; 1044 usb_frlength_t rem; 1045 usb_frcount_t n; 1046 uint32_t length; 1047 int error; 1048 uint8_t isread; 1049 1050 if (ep_index >= f->fs_ep_max) { 1051 return (EINVAL); 1052 } 1053 xfer = f->fs_xfer[ep_index]; 1054 if (xfer == NULL) { 1055 return (EINVAL); 1056 } 1057 mtx_lock(f->priv_mtx); 1058 if (usbd_transfer_pending(xfer)) { 1059 mtx_unlock(f->priv_mtx); 1060 return (EBUSY); /* should not happen */ 1061 } 1062 mtx_unlock(f->priv_mtx); 1063 1064 error = copyin(f->fs_ep_ptr + 1065 ep_index, &fs_ep, sizeof(fs_ep)); 1066 if (error) { 1067 return (error); 1068 } 1069 /* security checks */ 1070 1071 if (fs_ep.nFrames > xfer->max_frame_count) { 1072 xfer->error = USB_ERR_INVAL; 1073 goto complete; 1074 } 1075 if (fs_ep.nFrames == 0) { 1076 xfer->error = USB_ERR_INVAL; 1077 goto complete; 1078 } 1079 error = copyin(fs_ep.ppBuffer, 1080 &uaddr, sizeof(uaddr)); 1081 if (error) { 1082 return (error); 1083 } 1084 /* reset first frame */ 1085 usbd_xfer_set_frame_offset(xfer, 0, 0); 1086 1087 if (xfer->flags_int.control_xfr) { 1088 1089 req = xfer->frbuffers[0].buffer; 1090 1091 error = copyin(fs_ep.pLength, 1092 &length, sizeof(length)); 1093 if (error) { 1094 return (error); 1095 } 1096 if (length != sizeof(*req)) { 1097 xfer->error = USB_ERR_INVAL; 1098 goto complete; 1099 } 1100 if (length != 0) { 1101 error = copyin(uaddr, req, length); 1102 if (error) { 1103 return (error); 1104 } 1105 } 1106 if (ugen_check_request(f->udev, req)) { 1107 xfer->error = USB_ERR_INVAL; 1108 goto complete; 1109 } 1110 usbd_xfer_set_frame_len(xfer, 0, length); 1111 1112 /* Host mode only ! */ 1113 if ((req->bmRequestType & 1114 (UT_READ | UT_WRITE)) == UT_READ) { 1115 isread = 1; 1116 } else { 1117 isread = 0; 1118 } 1119 n = 1; 1120 offset = sizeof(*req); 1121 1122 } else { 1123 /* Device and Host mode */ 1124 if (USB_GET_DATA_ISREAD(xfer)) { 1125 isread = 1; 1126 } else { 1127 isread = 0; 1128 } 1129 n = 0; 1130 offset = 0; 1131 } 1132 1133 rem = usbd_xfer_max_len(xfer); 1134 xfer->nframes = fs_ep.nFrames; 1135 xfer->timeout = fs_ep.timeout; 1136 if (xfer->timeout > 65535) { 1137 xfer->timeout = 65535; 1138 } 1139 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1140 xfer->flags.short_xfer_ok = 1; 1141 else 1142 xfer->flags.short_xfer_ok = 0; 1143 1144 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1145 xfer->flags.short_frames_ok = 1; 1146 else 1147 xfer->flags.short_frames_ok = 0; 1148 1149 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1150 xfer->flags.force_short_xfer = 1; 1151 else 1152 xfer->flags.force_short_xfer = 0; 1153 1154 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1155 usbd_xfer_set_stall(xfer); 1156 else 1157 xfer->flags.stall_pipe = 0; 1158 1159 for (; n != xfer->nframes; n++) { 1160 1161 error = copyin(fs_ep.pLength + n, 1162 &length, sizeof(length)); 1163 if (error) { 1164 break; 1165 } 1166 usbd_xfer_set_frame_len(xfer, n, length); 1167 1168 if (length > rem) { 1169 xfer->error = USB_ERR_INVAL; 1170 goto complete; 1171 } 1172 rem -= length; 1173 1174 if (!isread) { 1175 1176 /* we need to know the source buffer */ 1177 error = copyin(fs_ep.ppBuffer + n, 1178 &uaddr, sizeof(uaddr)); 1179 if (error) { 1180 break; 1181 } 1182 if (xfer->flags_int.isochronous_xfr) { 1183 /* get kernel buffer address */ 1184 kaddr = xfer->frbuffers[0].buffer; 1185 kaddr = USB_ADD_BYTES(kaddr, offset); 1186 } else { 1187 /* set current frame offset */ 1188 usbd_xfer_set_frame_offset(xfer, offset, n); 1189 1190 /* get kernel buffer address */ 1191 kaddr = xfer->frbuffers[n].buffer; 1192 } 1193 1194 /* move data */ 1195 error = copyin(uaddr, kaddr, length); 1196 if (error) { 1197 break; 1198 } 1199 } 1200 offset += length; 1201 } 1202 return (error); 1203 1204 complete: 1205 mtx_lock(f->priv_mtx); 1206 ugen_fs_set_complete(f, ep_index); 1207 mtx_unlock(f->priv_mtx); 1208 return (0); 1209 } 1210 1211 static int 1212 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1213 { 1214 struct usb_device_request *req; 1215 struct usb_xfer *xfer; 1216 struct usb_fs_endpoint fs_ep; 1217 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1218 void *uaddr; /* userland ptr */ 1219 void *kaddr; 1220 usb_frlength_t offset; 1221 usb_frlength_t rem; 1222 usb_frcount_t n; 1223 uint32_t length; 1224 uint32_t temp; 1225 int error; 1226 uint8_t isread; 1227 1228 if (ep_index >= f->fs_ep_max) 1229 return (EINVAL); 1230 1231 xfer = f->fs_xfer[ep_index]; 1232 if (xfer == NULL) 1233 return (EINVAL); 1234 1235 mtx_lock(f->priv_mtx); 1236 if (usbd_transfer_pending(xfer)) { 1237 mtx_unlock(f->priv_mtx); 1238 return (EBUSY); /* should not happen */ 1239 } 1240 mtx_unlock(f->priv_mtx); 1241 1242 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1243 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1244 if (error) { 1245 return (error); 1246 } 1247 fs_ep.status = xfer->error; 1248 fs_ep.aFrames = xfer->aframes; 1249 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1250 if (xfer->error) { 1251 goto complete; 1252 } 1253 if (xfer->flags_int.control_xfr) { 1254 req = xfer->frbuffers[0].buffer; 1255 1256 /* Host mode only ! */ 1257 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1258 isread = 1; 1259 } else { 1260 isread = 0; 1261 } 1262 if (xfer->nframes == 0) 1263 n = 0; /* should never happen */ 1264 else 1265 n = 1; 1266 } else { 1267 /* Device and Host mode */ 1268 if (USB_GET_DATA_ISREAD(xfer)) { 1269 isread = 1; 1270 } else { 1271 isread = 0; 1272 } 1273 n = 0; 1274 } 1275 1276 /* Update lengths and copy out data */ 1277 1278 rem = usbd_xfer_max_len(xfer); 1279 offset = 0; 1280 1281 for (; n != xfer->nframes; n++) { 1282 1283 /* get initial length into "temp" */ 1284 error = copyin(fs_ep.pLength + n, 1285 &temp, sizeof(temp)); 1286 if (error) { 1287 return (error); 1288 } 1289 if (temp > rem) { 1290 /* the userland length has been corrupted */ 1291 DPRINTF("corrupt userland length " 1292 "%u > %u\n", temp, rem); 1293 fs_ep.status = USB_ERR_INVAL; 1294 goto complete; 1295 } 1296 rem -= temp; 1297 1298 /* get actual transfer length */ 1299 length = xfer->frlengths[n]; 1300 if (length > temp) { 1301 /* data overflow */ 1302 fs_ep.status = USB_ERR_INVAL; 1303 DPRINTF("data overflow %u > %u\n", 1304 length, temp); 1305 goto complete; 1306 } 1307 if (isread) { 1308 1309 /* we need to know the destination buffer */ 1310 error = copyin(fs_ep.ppBuffer + n, 1311 &uaddr, sizeof(uaddr)); 1312 if (error) { 1313 return (error); 1314 } 1315 if (xfer->flags_int.isochronous_xfr) { 1316 /* only one frame buffer */ 1317 kaddr = USB_ADD_BYTES( 1318 xfer->frbuffers[0].buffer, offset); 1319 } else { 1320 /* multiple frame buffers */ 1321 kaddr = xfer->frbuffers[n].buffer; 1322 } 1323 1324 /* move data */ 1325 error = copyout(kaddr, uaddr, length); 1326 if (error) { 1327 return (error); 1328 } 1329 } 1330 /* 1331 * Update offset according to initial length, which is 1332 * needed by isochronous transfers! 1333 */ 1334 offset += temp; 1335 1336 /* update length */ 1337 error = copyout(&length, 1338 fs_ep.pLength + n, sizeof(length)); 1339 if (error) { 1340 return (error); 1341 } 1342 } 1343 1344 complete: 1345 /* update "aFrames" */ 1346 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1347 sizeof(fs_ep.aFrames)); 1348 if (error) 1349 goto done; 1350 1351 /* update "isoc_time_complete" */ 1352 error = copyout(&fs_ep.isoc_time_complete, 1353 &fs_ep_uptr->isoc_time_complete, 1354 sizeof(fs_ep.isoc_time_complete)); 1355 if (error) 1356 goto done; 1357 /* update "status" */ 1358 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1359 sizeof(fs_ep.status)); 1360 done: 1361 return (error); 1362 } 1363 1364 static uint8_t 1365 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1366 { 1367 struct usb_fifo *f_rx; 1368 struct usb_fifo *f_tx; 1369 1370 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1371 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1372 1373 if ((fflags & FREAD) && f_rx && 1374 (f_rx->xfer[0] || f_rx->xfer[1])) { 1375 return (1); /* RX FIFO in use */ 1376 } 1377 if ((fflags & FWRITE) && f_tx && 1378 (f_tx->xfer[0] || f_tx->xfer[1])) { 1379 return (1); /* TX FIFO in use */ 1380 } 1381 return (0); /* not in use */ 1382 } 1383 1384 static int 1385 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1386 { 1387 struct usb_config usb_config[1]; 1388 struct usb_device_request req; 1389 union { 1390 struct usb_fs_complete *pcomp; 1391 struct usb_fs_start *pstart; 1392 struct usb_fs_stop *pstop; 1393 struct usb_fs_open *popen; 1394 struct usb_fs_close *pclose; 1395 struct usb_fs_clear_stall_sync *pstall; 1396 void *addr; 1397 } u; 1398 struct usb_endpoint *ep; 1399 struct usb_endpoint_descriptor *ed; 1400 struct usb_xfer *xfer; 1401 int error = 0; 1402 uint8_t iface_index; 1403 uint8_t isread; 1404 uint8_t ep_index; 1405 uint8_t pre_scale; 1406 1407 u.addr = addr; 1408 1409 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1410 1411 switch (cmd) { 1412 case USB_FS_COMPLETE: 1413 mtx_lock(f->priv_mtx); 1414 error = ugen_fs_get_complete(f, &ep_index); 1415 mtx_unlock(f->priv_mtx); 1416 1417 if (error) { 1418 error = EBUSY; 1419 break; 1420 } 1421 u.pcomp->ep_index = ep_index; 1422 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1423 break; 1424 1425 case USB_FS_START: 1426 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1427 if (error) 1428 break; 1429 mtx_lock(f->priv_mtx); 1430 xfer = f->fs_xfer[u.pstart->ep_index]; 1431 usbd_transfer_start(xfer); 1432 mtx_unlock(f->priv_mtx); 1433 break; 1434 1435 case USB_FS_STOP: 1436 if (u.pstop->ep_index >= f->fs_ep_max) { 1437 error = EINVAL; 1438 break; 1439 } 1440 mtx_lock(f->priv_mtx); 1441 xfer = f->fs_xfer[u.pstart->ep_index]; 1442 if (usbd_transfer_pending(xfer)) { 1443 usbd_transfer_stop(xfer); 1444 /* 1445 * Check if the USB transfer was stopped 1446 * before it was even started. Else a cancel 1447 * callback will be pending. 1448 */ 1449 if (!xfer->flags_int.transferring) { 1450 ugen_fs_set_complete(xfer->priv_sc, 1451 USB_P2U(xfer->priv_fifo)); 1452 } 1453 } 1454 mtx_unlock(f->priv_mtx); 1455 break; 1456 1457 case USB_FS_OPEN: 1458 if (u.popen->ep_index >= f->fs_ep_max) { 1459 error = EINVAL; 1460 break; 1461 } 1462 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1463 error = EBUSY; 1464 break; 1465 } 1466 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1467 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1468 } 1469 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1470 pre_scale = 1; 1471 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1472 } else { 1473 pre_scale = 0; 1474 } 1475 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1476 u.popen->max_frames = USB_FS_MAX_FRAMES; 1477 break; 1478 } 1479 if (u.popen->max_frames == 0) { 1480 error = EINVAL; 1481 break; 1482 } 1483 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1484 if (ep == NULL) { 1485 error = EINVAL; 1486 break; 1487 } 1488 ed = ep->edesc; 1489 if (ed == NULL) { 1490 error = ENXIO; 1491 break; 1492 } 1493 iface_index = ep->iface_index; 1494 1495 memset(usb_config, 0, sizeof(usb_config)); 1496 1497 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1498 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1499 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1500 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1501 usb_config[0].flags.proxy_buffer = 1; 1502 if (pre_scale != 0) 1503 usb_config[0].flags.pre_scale_frames = 1; 1504 usb_config[0].callback = &ugen_ctrl_fs_callback; 1505 usb_config[0].timeout = 0; /* no timeout */ 1506 usb_config[0].frames = u.popen->max_frames; 1507 usb_config[0].bufsize = u.popen->max_bufsize; 1508 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1509 1510 if (usb_config[0].type == UE_CONTROL) { 1511 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1512 error = EINVAL; 1513 break; 1514 } 1515 } else { 1516 1517 isread = ((usb_config[0].endpoint & 1518 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1519 1520 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1521 isread = !isread; 1522 } 1523 /* check permissions */ 1524 if (isread) { 1525 if (!(fflags & FREAD)) { 1526 error = EPERM; 1527 break; 1528 } 1529 } else { 1530 if (!(fflags & FWRITE)) { 1531 error = EPERM; 1532 break; 1533 } 1534 } 1535 } 1536 error = usbd_transfer_setup(f->udev, &iface_index, 1537 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1538 f, f->priv_mtx); 1539 if (error == 0) { 1540 /* update maximums */ 1541 u.popen->max_packet_length = 1542 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1543 u.popen->max_bufsize = 1544 f->fs_xfer[u.popen->ep_index]->max_data_length; 1545 /* update number of frames */ 1546 u.popen->max_frames = 1547 f->fs_xfer[u.popen->ep_index]->nframes; 1548 /* store index of endpoint */ 1549 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1550 ((uint8_t *)0) + u.popen->ep_index; 1551 } else { 1552 error = ENOMEM; 1553 } 1554 break; 1555 1556 case USB_FS_CLOSE: 1557 if (u.pclose->ep_index >= f->fs_ep_max) { 1558 error = EINVAL; 1559 break; 1560 } 1561 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1562 error = EINVAL; 1563 break; 1564 } 1565 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1566 break; 1567 1568 case USB_FS_CLEAR_STALL_SYNC: 1569 if (u.pstall->ep_index >= f->fs_ep_max) { 1570 error = EINVAL; 1571 break; 1572 } 1573 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1574 error = EINVAL; 1575 break; 1576 } 1577 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1578 error = EINVAL; 1579 break; 1580 } 1581 mtx_lock(f->priv_mtx); 1582 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1583 mtx_unlock(f->priv_mtx); 1584 1585 if (error) { 1586 return (EBUSY); 1587 } 1588 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1589 1590 /* setup a clear-stall packet */ 1591 req.bmRequestType = UT_WRITE_ENDPOINT; 1592 req.bRequest = UR_CLEAR_FEATURE; 1593 USETW(req.wValue, UF_ENDPOINT_HALT); 1594 req.wIndex[0] = ep->edesc->bEndpointAddress; 1595 req.wIndex[1] = 0; 1596 USETW(req.wLength, 0); 1597 1598 error = usbd_do_request(f->udev, NULL, &req, NULL); 1599 if (error == 0) { 1600 usbd_clear_data_toggle(f->udev, ep); 1601 } else { 1602 error = ENXIO; 1603 } 1604 break; 1605 1606 default: 1607 error = ENOIOCTL; 1608 break; 1609 } 1610 1611 DPRINTFN(6, "error=%d\n", error); 1612 1613 return (error); 1614 } 1615 1616 static int 1617 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1618 { 1619 uint8_t t; 1620 1621 if (*(int *)addr) 1622 t = 1; 1623 else 1624 t = 0; 1625 1626 if (f->flag_short == t) { 1627 /* same value like before - accept */ 1628 return (0); 1629 } 1630 if (f->xfer[0] || f->xfer[1]) { 1631 /* cannot change this during transfer */ 1632 return (EBUSY); 1633 } 1634 f->flag_short = t; 1635 return (0); 1636 } 1637 1638 static int 1639 ugen_set_timeout(struct usb_fifo *f, void *addr) 1640 { 1641 f->timeout = *(int *)addr; 1642 if (f->timeout > 65535) { 1643 /* limit user input */ 1644 f->timeout = 65535; 1645 } 1646 return (0); 1647 } 1648 1649 static int 1650 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1651 { 1652 if (f->xfer[0]) { 1653 *(int *)addr = f->xfer[0]->max_frame_size; 1654 } else { 1655 return (EINVAL); 1656 } 1657 return (0); 1658 } 1659 1660 static int 1661 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1662 { 1663 usb_frlength_t t; 1664 1665 if (*(int *)addr < 0) 1666 t = 0; /* use "wMaxPacketSize" */ 1667 else if (*(int *)addr < (256 * 1024)) 1668 t = *(int *)addr; 1669 else 1670 t = 256 * 1024; 1671 1672 if (f->bufsize == t) { 1673 /* same value like before - accept */ 1674 return (0); 1675 } 1676 if (f->xfer[0] || f->xfer[1]) { 1677 /* cannot change this during transfer */ 1678 return (EBUSY); 1679 } 1680 f->bufsize = t; 1681 return (0); 1682 } 1683 1684 static int 1685 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1686 { 1687 *(int *)addr = f->bufsize; 1688 return (0); 1689 } 1690 1691 static int 1692 ugen_get_iface_desc(struct usb_fifo *f, 1693 struct usb_interface_descriptor *idesc) 1694 { 1695 struct usb_interface *iface; 1696 1697 iface = usbd_get_iface(f->udev, f->iface_index); 1698 if (iface && iface->idesc) { 1699 *idesc = *(iface->idesc); 1700 } else { 1701 return (EIO); 1702 } 1703 return (0); 1704 } 1705 1706 static int 1707 ugen_get_endpoint_desc(struct usb_fifo *f, 1708 struct usb_endpoint_descriptor *ed) 1709 { 1710 struct usb_endpoint *ep; 1711 1712 ep = usb_fifo_softc(f); 1713 1714 if (ep && ep->edesc) { 1715 *ed = *ep->edesc; 1716 } else { 1717 return (EINVAL); 1718 } 1719 return (0); 1720 } 1721 1722 static int 1723 ugen_set_power_mode(struct usb_fifo *f, int mode) 1724 { 1725 struct usb_device *udev = f->udev; 1726 int err; 1727 uint8_t old_mode; 1728 1729 if ((udev == NULL) || 1730 (udev->parent_hub == NULL)) { 1731 return (EINVAL); 1732 } 1733 err = priv_check(curthread, PRIV_DRIVER); 1734 if (err) 1735 return (err); 1736 1737 /* get old power mode */ 1738 old_mode = udev->power_mode; 1739 1740 /* if no change, then just return */ 1741 if (old_mode == mode) 1742 return (0); 1743 1744 switch (mode) { 1745 case USB_POWER_MODE_OFF: 1746 /* get the device unconfigured */ 1747 err = ugen_set_config(f, USB_UNCONFIG_INDEX); 1748 if (err) { 1749 DPRINTFN(0, "Could not unconfigure " 1750 "device (ignored)\n"); 1751 } 1752 1753 /* clear port enable */ 1754 err = usbd_req_clear_port_feature(udev->parent_hub, 1755 NULL, udev->port_no, UHF_PORT_ENABLE); 1756 break; 1757 1758 case USB_POWER_MODE_ON: 1759 case USB_POWER_MODE_SAVE: 1760 break; 1761 1762 case USB_POWER_MODE_RESUME: 1763 #if USB_HAVE_POWERD 1764 /* let USB-powerd handle resume */ 1765 USB_BUS_LOCK(udev->bus); 1766 udev->pwr_save.write_refs++; 1767 udev->pwr_save.last_xfer_time = ticks; 1768 USB_BUS_UNLOCK(udev->bus); 1769 1770 /* set new power mode */ 1771 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1772 1773 /* wait for resume to complete */ 1774 usb_pause_mtx(NULL, hz / 4); 1775 1776 /* clear write reference */ 1777 USB_BUS_LOCK(udev->bus); 1778 udev->pwr_save.write_refs--; 1779 USB_BUS_UNLOCK(udev->bus); 1780 #endif 1781 mode = USB_POWER_MODE_SAVE; 1782 break; 1783 1784 case USB_POWER_MODE_SUSPEND: 1785 #if USB_HAVE_POWERD 1786 /* let USB-powerd handle suspend */ 1787 USB_BUS_LOCK(udev->bus); 1788 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1789 USB_BUS_UNLOCK(udev->bus); 1790 #endif 1791 mode = USB_POWER_MODE_SAVE; 1792 break; 1793 1794 default: 1795 return (EINVAL); 1796 } 1797 1798 if (err) 1799 return (ENXIO); /* I/O failure */ 1800 1801 /* if we are powered off we need to re-enumerate first */ 1802 if (old_mode == USB_POWER_MODE_OFF) { 1803 if (udev->flags.usb_mode == USB_MODE_HOST) { 1804 if (udev->re_enumerate_wait == 0) 1805 udev->re_enumerate_wait = 1; 1806 } 1807 /* set power mode will wake up the explore thread */ 1808 } 1809 1810 /* set new power mode */ 1811 usbd_set_power_mode(udev, mode); 1812 1813 return (0); /* success */ 1814 } 1815 1816 static int 1817 ugen_get_power_mode(struct usb_fifo *f) 1818 { 1819 struct usb_device *udev = f->udev; 1820 1821 if (udev == NULL) 1822 return (USB_POWER_MODE_ON); 1823 1824 return (udev->power_mode); 1825 } 1826 1827 static int 1828 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1829 uint8_t set, uint16_t feature) 1830 { 1831 struct usb_device *udev = f->udev; 1832 struct usb_hub *hub; 1833 int err; 1834 1835 err = priv_check(curthread, PRIV_DRIVER); 1836 if (err) { 1837 return (err); 1838 } 1839 if (port_no == 0) { 1840 return (EINVAL); 1841 } 1842 if ((udev == NULL) || 1843 (udev->hub == NULL)) { 1844 return (EINVAL); 1845 } 1846 hub = udev->hub; 1847 1848 if (port_no > hub->nports) { 1849 return (EINVAL); 1850 } 1851 if (set) 1852 err = usbd_req_set_port_feature(udev, 1853 NULL, port_no, feature); 1854 else 1855 err = usbd_req_clear_port_feature(udev, 1856 NULL, port_no, feature); 1857 1858 if (err) 1859 return (ENXIO); /* failure */ 1860 1861 return (0); /* success */ 1862 } 1863 1864 static int 1865 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1866 { 1867 struct usb_fifo *f_rx; 1868 struct usb_fifo *f_tx; 1869 int error = 0; 1870 1871 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1872 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1873 1874 switch (cmd) { 1875 case USB_SET_RX_SHORT_XFER: 1876 if (fflags & FREAD) { 1877 error = ugen_set_short_xfer(f_rx, addr); 1878 } else { 1879 error = EINVAL; 1880 } 1881 break; 1882 1883 case USB_SET_TX_FORCE_SHORT: 1884 if (fflags & FWRITE) { 1885 error = ugen_set_short_xfer(f_tx, addr); 1886 } else { 1887 error = EINVAL; 1888 } 1889 break; 1890 1891 case USB_SET_RX_TIMEOUT: 1892 if (fflags & FREAD) { 1893 error = ugen_set_timeout(f_rx, addr); 1894 } else { 1895 error = EINVAL; 1896 } 1897 break; 1898 1899 case USB_SET_TX_TIMEOUT: 1900 if (fflags & FWRITE) { 1901 error = ugen_set_timeout(f_tx, addr); 1902 } else { 1903 error = EINVAL; 1904 } 1905 break; 1906 1907 case USB_GET_RX_FRAME_SIZE: 1908 if (fflags & FREAD) { 1909 error = ugen_get_frame_size(f_rx, addr); 1910 } else { 1911 error = EINVAL; 1912 } 1913 break; 1914 1915 case USB_GET_TX_FRAME_SIZE: 1916 if (fflags & FWRITE) { 1917 error = ugen_get_frame_size(f_tx, addr); 1918 } else { 1919 error = EINVAL; 1920 } 1921 break; 1922 1923 case USB_SET_RX_BUFFER_SIZE: 1924 if (fflags & FREAD) { 1925 error = ugen_set_buffer_size(f_rx, addr); 1926 } else { 1927 error = EINVAL; 1928 } 1929 break; 1930 1931 case USB_SET_TX_BUFFER_SIZE: 1932 if (fflags & FWRITE) { 1933 error = ugen_set_buffer_size(f_tx, addr); 1934 } else { 1935 error = EINVAL; 1936 } 1937 break; 1938 1939 case USB_GET_RX_BUFFER_SIZE: 1940 if (fflags & FREAD) { 1941 error = ugen_get_buffer_size(f_rx, addr); 1942 } else { 1943 error = EINVAL; 1944 } 1945 break; 1946 1947 case USB_GET_TX_BUFFER_SIZE: 1948 if (fflags & FWRITE) { 1949 error = ugen_get_buffer_size(f_tx, addr); 1950 } else { 1951 error = EINVAL; 1952 } 1953 break; 1954 1955 case USB_GET_RX_INTERFACE_DESC: 1956 if (fflags & FREAD) { 1957 error = ugen_get_iface_desc(f_rx, addr); 1958 } else { 1959 error = EINVAL; 1960 } 1961 break; 1962 1963 case USB_GET_TX_INTERFACE_DESC: 1964 if (fflags & FWRITE) { 1965 error = ugen_get_iface_desc(f_tx, addr); 1966 } else { 1967 error = EINVAL; 1968 } 1969 break; 1970 1971 case USB_GET_RX_ENDPOINT_DESC: 1972 if (fflags & FREAD) { 1973 error = ugen_get_endpoint_desc(f_rx, addr); 1974 } else { 1975 error = EINVAL; 1976 } 1977 break; 1978 1979 case USB_GET_TX_ENDPOINT_DESC: 1980 if (fflags & FWRITE) { 1981 error = ugen_get_endpoint_desc(f_tx, addr); 1982 } else { 1983 error = EINVAL; 1984 } 1985 break; 1986 1987 case USB_SET_RX_STALL_FLAG: 1988 if ((fflags & FREAD) && (*(int *)addr)) { 1989 f_rx->flag_stall = 1; 1990 } 1991 break; 1992 1993 case USB_SET_TX_STALL_FLAG: 1994 if ((fflags & FWRITE) && (*(int *)addr)) { 1995 f_tx->flag_stall = 1; 1996 } 1997 break; 1998 1999 default: 2000 error = ENOIOCTL; 2001 break; 2002 } 2003 return (error); 2004 } 2005 2006 static int 2007 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2008 { 2009 union { 2010 struct usb_interface_descriptor *idesc; 2011 struct usb_alt_interface *ai; 2012 struct usb_device_descriptor *ddesc; 2013 struct usb_config_descriptor *cdesc; 2014 struct usb_device_stats *stat; 2015 struct usb_fs_init *pinit; 2016 struct usb_fs_uninit *puninit; 2017 uint32_t *ptime; 2018 void *addr; 2019 int *pint; 2020 } u; 2021 struct usb_device_descriptor *dtemp; 2022 struct usb_config_descriptor *ctemp; 2023 struct usb_interface *iface; 2024 int error = 0; 2025 uint8_t n; 2026 2027 u.addr = addr; 2028 2029 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2030 2031 switch (cmd) { 2032 case USB_DISCOVER: 2033 usb_needs_explore_all(); 2034 break; 2035 2036 case USB_SETDEBUG: 2037 if (!(fflags & FWRITE)) { 2038 error = EPERM; 2039 break; 2040 } 2041 usb_debug = *(int *)addr; 2042 break; 2043 2044 case USB_GET_CONFIG: 2045 *(int *)addr = f->udev->curr_config_index; 2046 break; 2047 2048 case USB_SET_CONFIG: 2049 if (!(fflags & FWRITE)) { 2050 error = EPERM; 2051 break; 2052 } 2053 error = ugen_set_config(f, *(int *)addr); 2054 break; 2055 2056 case USB_GET_ALTINTERFACE: 2057 iface = usbd_get_iface(f->udev, 2058 u.ai->uai_interface_index); 2059 if (iface && iface->idesc) { 2060 u.ai->uai_alt_index = iface->alt_index; 2061 } else { 2062 error = EINVAL; 2063 } 2064 break; 2065 2066 case USB_SET_ALTINTERFACE: 2067 if (!(fflags & FWRITE)) { 2068 error = EPERM; 2069 break; 2070 } 2071 error = ugen_set_interface(f, 2072 u.ai->uai_interface_index, u.ai->uai_alt_index); 2073 break; 2074 2075 case USB_GET_DEVICE_DESC: 2076 dtemp = usbd_get_device_descriptor(f->udev); 2077 if (!dtemp) { 2078 error = EIO; 2079 break; 2080 } 2081 *u.ddesc = *dtemp; 2082 break; 2083 2084 case USB_GET_CONFIG_DESC: 2085 ctemp = usbd_get_config_descriptor(f->udev); 2086 if (!ctemp) { 2087 error = EIO; 2088 break; 2089 } 2090 *u.cdesc = *ctemp; 2091 break; 2092 2093 case USB_GET_FULL_DESC: 2094 error = ugen_get_cdesc(f, addr); 2095 break; 2096 2097 case USB_GET_STRING_DESC: 2098 error = ugen_get_sdesc(f, addr); 2099 break; 2100 2101 case USB_GET_IFACE_DRIVER: 2102 error = ugen_get_iface_driver(f, addr); 2103 break; 2104 2105 case USB_REQUEST: 2106 case USB_DO_REQUEST: 2107 if (!(fflags & FWRITE)) { 2108 error = EPERM; 2109 break; 2110 } 2111 error = ugen_do_request(f, addr); 2112 break; 2113 2114 case USB_DEVICEINFO: 2115 case USB_GET_DEVICEINFO: 2116 error = usb_gen_fill_deviceinfo(f, addr); 2117 break; 2118 2119 case USB_DEVICESTATS: 2120 for (n = 0; n != 4; n++) { 2121 2122 u.stat->uds_requests_fail[n] = 2123 f->udev->bus->stats_err.uds_requests[n]; 2124 2125 u.stat->uds_requests_ok[n] = 2126 f->udev->bus->stats_ok.uds_requests[n]; 2127 } 2128 break; 2129 2130 case USB_DEVICEENUMERATE: 2131 error = ugen_re_enumerate(f); 2132 break; 2133 2134 case USB_GET_PLUGTIME: 2135 *u.ptime = f->udev->plugtime; 2136 break; 2137 2138 case USB_CLAIM_INTERFACE: 2139 case USB_RELEASE_INTERFACE: 2140 /* TODO */ 2141 break; 2142 2143 case USB_IFACE_DRIVER_ACTIVE: 2144 2145 n = *u.pint & 0xFF; 2146 2147 iface = usbd_get_iface(f->udev, n); 2148 2149 if (iface && iface->subdev) 2150 error = 0; 2151 else 2152 error = ENXIO; 2153 break; 2154 2155 case USB_IFACE_DRIVER_DETACH: 2156 2157 error = priv_check(curthread, PRIV_DRIVER); 2158 2159 if (error) 2160 break; 2161 2162 n = *u.pint & 0xFF; 2163 2164 if (n == USB_IFACE_INDEX_ANY) { 2165 error = EINVAL; 2166 break; 2167 } 2168 2169 /* 2170 * Detach the currently attached driver. 2171 */ 2172 usb_detach_device(f->udev, n, 0); 2173 2174 /* 2175 * Set parent to self, this should keep attach away 2176 * until the next set configuration event. 2177 */ 2178 usbd_set_parent_iface(f->udev, n, n); 2179 break; 2180 2181 case USB_SET_POWER_MODE: 2182 error = ugen_set_power_mode(f, *u.pint); 2183 break; 2184 2185 case USB_GET_POWER_MODE: 2186 *u.pint = ugen_get_power_mode(f); 2187 break; 2188 2189 case USB_SET_PORT_ENABLE: 2190 error = ugen_do_port_feature(f, 2191 *u.pint, 1, UHF_PORT_ENABLE); 2192 break; 2193 2194 case USB_SET_PORT_DISABLE: 2195 error = ugen_do_port_feature(f, 2196 *u.pint, 0, UHF_PORT_ENABLE); 2197 break; 2198 2199 case USB_FS_INIT: 2200 /* verify input parameters */ 2201 if (u.pinit->pEndpoints == NULL) { 2202 error = EINVAL; 2203 break; 2204 } 2205 if (u.pinit->ep_index_max > 127) { 2206 error = EINVAL; 2207 break; 2208 } 2209 if (u.pinit->ep_index_max == 0) { 2210 error = EINVAL; 2211 break; 2212 } 2213 if (f->fs_xfer != NULL) { 2214 error = EBUSY; 2215 break; 2216 } 2217 if (f->dev_ep_index != 0) { 2218 error = EINVAL; 2219 break; 2220 } 2221 if (ugen_fifo_in_use(f, fflags)) { 2222 error = EBUSY; 2223 break; 2224 } 2225 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2226 if (error) { 2227 break; 2228 } 2229 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2230 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2231 if (f->fs_xfer == NULL) { 2232 usb_fifo_free_buffer(f); 2233 error = ENOMEM; 2234 break; 2235 } 2236 f->fs_ep_max = u.pinit->ep_index_max; 2237 f->fs_ep_ptr = u.pinit->pEndpoints; 2238 break; 2239 2240 case USB_FS_UNINIT: 2241 if (u.puninit->dummy != 0) { 2242 error = EINVAL; 2243 break; 2244 } 2245 error = ugen_fs_uninit(f); 2246 break; 2247 2248 default: 2249 mtx_lock(f->priv_mtx); 2250 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2251 mtx_unlock(f->priv_mtx); 2252 break; 2253 } 2254 DPRINTFN(6, "error=%d\n", error); 2255 return (error); 2256 } 2257 2258 static void 2259 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2260 { 2261 ; /* workaround for a bug in "indent" */ 2262 2263 DPRINTF("st=%u alen=%u aframes=%u\n", 2264 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2265 2266 switch (USB_GET_STATE(xfer)) { 2267 case USB_ST_SETUP: 2268 usbd_transfer_submit(xfer); 2269 break; 2270 default: 2271 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2272 break; 2273 } 2274 } 2275 #endif /* USB_HAVE_UGEN */ 2276