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/linker_set.h> 36 #include <sys/module.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/condvar.h> 40 #include <sys/sysctl.h> 41 #include <sys/sx.h> 42 #include <sys/unistd.h> 43 #include <sys/callout.h> 44 #include <sys/malloc.h> 45 #include <sys/priv.h> 46 #include <sys/conf.h> 47 #include <sys/fcntl.h> 48 49 #include <dev/usb/usb.h> 50 #include <dev/usb/usb_ioctl.h> 51 #include <dev/usb/usbdi.h> 52 #include <dev/usb/usbdi_util.h> 53 54 #define USB_DEBUG_VAR ugen_debug 55 56 #include <dev/usb/usb_core.h> 57 #include <dev/usb/usb_dev.h> 58 #include <dev/usb/usb_mbuf.h> 59 #include <dev/usb/usb_process.h> 60 #include <dev/usb/usb_device.h> 61 #include <dev/usb/usb_debug.h> 62 #include <dev/usb/usb_request.h> 63 #include <dev/usb/usb_busdma.h> 64 #include <dev/usb/usb_util.h> 65 #include <dev/usb/usb_hub.h> 66 #include <dev/usb/usb_generic.h> 67 #include <dev/usb/usb_transfer.h> 68 69 #include <dev/usb/usb_controller.h> 70 #include <dev/usb/usb_bus.h> 71 72 #if USB_HAVE_UGEN 73 74 /* defines */ 75 76 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 77 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 78 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 79 80 /* function prototypes */ 81 82 static usb_callback_t ugen_read_clear_stall_callback; 83 static usb_callback_t ugen_write_clear_stall_callback; 84 static usb_callback_t ugen_ctrl_read_callback; 85 static usb_callback_t ugen_ctrl_write_callback; 86 static usb_callback_t ugen_isoc_read_callback; 87 static usb_callback_t ugen_isoc_write_callback; 88 static usb_callback_t ugen_ctrl_fs_callback; 89 90 static usb_fifo_open_t ugen_open; 91 static usb_fifo_close_t ugen_close; 92 static usb_fifo_ioctl_t ugen_ioctl; 93 static usb_fifo_ioctl_t ugen_ioctl_post; 94 static usb_fifo_cmd_t ugen_start_read; 95 static usb_fifo_cmd_t ugen_start_write; 96 static usb_fifo_cmd_t ugen_stop_io; 97 98 static int ugen_transfer_setup(struct usb_fifo *, 99 const struct usb_config *, uint8_t); 100 static int ugen_open_pipe_write(struct usb_fifo *); 101 static int ugen_open_pipe_read(struct usb_fifo *); 102 static int ugen_set_config(struct usb_fifo *, uint8_t); 103 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 104 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 105 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 106 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 107 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 108 struct usb_device_info *); 109 static int ugen_re_enumerate(struct usb_fifo *); 110 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 111 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 112 static int ugen_fs_uninit(struct usb_fifo *f); 113 114 /* structures */ 115 116 struct usb_fifo_methods usb_ugen_methods = { 117 .f_open = &ugen_open, 118 .f_close = &ugen_close, 119 .f_ioctl = &ugen_ioctl, 120 .f_ioctl_post = &ugen_ioctl_post, 121 .f_start_read = &ugen_start_read, 122 .f_stop_read = &ugen_stop_io, 123 .f_start_write = &ugen_start_write, 124 .f_stop_write = &ugen_stop_io, 125 }; 126 127 #ifdef USB_DEBUG 128 static int ugen_debug = 0; 129 130 SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 131 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 132 0, "Debug level"); 133 134 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug); 135 #endif 136 137 138 /* prototypes */ 139 140 static int 141 ugen_transfer_setup(struct usb_fifo *f, 142 const struct usb_config *setup, uint8_t n_setup) 143 { 144 struct usb_endpoint *ep = usb_fifo_softc(f); 145 struct usb_device *udev = f->udev; 146 uint8_t iface_index = ep->iface_index; 147 int error; 148 149 mtx_unlock(f->priv_mtx); 150 151 /* 152 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 153 * exiting the mutex and checking things 154 */ 155 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 156 setup, n_setup, f, f->priv_mtx); 157 if (error == 0) { 158 159 if (f->xfer[0]->nframes == 1) { 160 error = usb_fifo_alloc_buffer(f, 161 f->xfer[0]->max_data_length, 2); 162 } else { 163 error = usb_fifo_alloc_buffer(f, 164 f->xfer[0]->max_frame_size, 165 2 * f->xfer[0]->nframes); 166 } 167 if (error) { 168 usbd_transfer_unsetup(f->xfer, n_setup); 169 } 170 } 171 mtx_lock(f->priv_mtx); 172 173 return (error); 174 } 175 176 static int 177 ugen_open(struct usb_fifo *f, int fflags) 178 { 179 struct usb_endpoint *ep = usb_fifo_softc(f); 180 struct usb_endpoint_descriptor *ed = ep->edesc; 181 uint8_t type; 182 183 DPRINTFN(6, "flag=0x%x\n", fflags); 184 185 mtx_lock(f->priv_mtx); 186 switch (usbd_get_speed(f->udev)) { 187 case USB_SPEED_LOW: 188 case USB_SPEED_FULL: 189 f->nframes = UGEN_HW_FRAMES; 190 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 191 break; 192 default: 193 f->nframes = UGEN_HW_FRAMES * 8; 194 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 195 break; 196 } 197 198 type = ed->bmAttributes & UE_XFERTYPE; 199 if (type == UE_INTERRUPT) { 200 f->bufsize = 0; /* use "wMaxPacketSize" */ 201 } 202 f->timeout = USB_NO_TIMEOUT; 203 f->flag_short = 0; 204 f->fifo_zlp = 0; 205 mtx_unlock(f->priv_mtx); 206 207 return (0); 208 } 209 210 static void 211 ugen_close(struct usb_fifo *f, int fflags) 212 { 213 DPRINTFN(6, "flag=0x%x\n", fflags); 214 215 /* cleanup */ 216 217 mtx_lock(f->priv_mtx); 218 usbd_transfer_stop(f->xfer[0]); 219 usbd_transfer_stop(f->xfer[1]); 220 mtx_unlock(f->priv_mtx); 221 222 usbd_transfer_unsetup(f->xfer, 2); 223 usb_fifo_free_buffer(f); 224 225 if (ugen_fs_uninit(f)) { 226 /* ignore any errors - we are closing */ 227 DPRINTFN(6, "no FIFOs\n"); 228 } 229 } 230 231 static int 232 ugen_open_pipe_write(struct usb_fifo *f) 233 { 234 struct usb_config usb_config[2]; 235 struct usb_endpoint *ep = usb_fifo_softc(f); 236 struct usb_endpoint_descriptor *ed = ep->edesc; 237 238 mtx_assert(f->priv_mtx, MA_OWNED); 239 240 if (f->xfer[0] || f->xfer[1]) { 241 /* transfers are already opened */ 242 return (0); 243 } 244 bzero(usb_config, sizeof(usb_config)); 245 246 usb_config[1].type = UE_CONTROL; 247 usb_config[1].endpoint = 0; 248 usb_config[1].direction = UE_DIR_ANY; 249 usb_config[1].timeout = 1000; /* 1 second */ 250 usb_config[1].interval = 50;/* 50 milliseconds */ 251 usb_config[1].bufsize = sizeof(struct usb_device_request); 252 usb_config[1].callback = &ugen_write_clear_stall_callback; 253 usb_config[1].usb_mode = USB_MODE_HOST; 254 255 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 256 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 257 usb_config[0].direction = UE_DIR_TX; 258 usb_config[0].interval = USB_DEFAULT_INTERVAL; 259 usb_config[0].flags.proxy_buffer = 1; 260 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 261 262 switch (ed->bmAttributes & UE_XFERTYPE) { 263 case UE_INTERRUPT: 264 case UE_BULK: 265 if (f->flag_short) { 266 usb_config[0].flags.force_short_xfer = 1; 267 } 268 usb_config[0].callback = &ugen_ctrl_write_callback; 269 usb_config[0].timeout = f->timeout; 270 usb_config[0].frames = 1; 271 usb_config[0].bufsize = f->bufsize; 272 if (ugen_transfer_setup(f, usb_config, 2)) { 273 return (EIO); 274 } 275 /* first transfer does not clear stall */ 276 f->flag_stall = 0; 277 break; 278 279 case UE_ISOCHRONOUS: 280 usb_config[0].flags.short_xfer_ok = 1; 281 usb_config[0].bufsize = 0; /* use default */ 282 usb_config[0].frames = f->nframes; 283 usb_config[0].callback = &ugen_isoc_write_callback; 284 usb_config[0].timeout = 0; 285 286 /* clone configuration */ 287 usb_config[1] = usb_config[0]; 288 289 if (ugen_transfer_setup(f, usb_config, 2)) { 290 return (EIO); 291 } 292 break; 293 default: 294 return (EINVAL); 295 } 296 return (0); 297 } 298 299 static int 300 ugen_open_pipe_read(struct usb_fifo *f) 301 { 302 struct usb_config usb_config[2]; 303 struct usb_endpoint *ep = usb_fifo_softc(f); 304 struct usb_endpoint_descriptor *ed = ep->edesc; 305 306 mtx_assert(f->priv_mtx, MA_OWNED); 307 308 if (f->xfer[0] || f->xfer[1]) { 309 /* transfers are already opened */ 310 return (0); 311 } 312 bzero(usb_config, sizeof(usb_config)); 313 314 usb_config[1].type = UE_CONTROL; 315 usb_config[1].endpoint = 0; 316 usb_config[1].direction = UE_DIR_ANY; 317 usb_config[1].timeout = 1000; /* 1 second */ 318 usb_config[1].interval = 50;/* 50 milliseconds */ 319 usb_config[1].bufsize = sizeof(struct usb_device_request); 320 usb_config[1].callback = &ugen_read_clear_stall_callback; 321 usb_config[1].usb_mode = USB_MODE_HOST; 322 323 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 324 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 325 usb_config[0].direction = UE_DIR_RX; 326 usb_config[0].interval = USB_DEFAULT_INTERVAL; 327 usb_config[0].flags.proxy_buffer = 1; 328 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 329 330 switch (ed->bmAttributes & UE_XFERTYPE) { 331 case UE_INTERRUPT: 332 case UE_BULK: 333 if (f->flag_short) { 334 usb_config[0].flags.short_xfer_ok = 1; 335 } 336 usb_config[0].timeout = f->timeout; 337 usb_config[0].frames = 1; 338 usb_config[0].callback = &ugen_ctrl_read_callback; 339 usb_config[0].bufsize = f->bufsize; 340 341 if (ugen_transfer_setup(f, usb_config, 2)) { 342 return (EIO); 343 } 344 /* first transfer does not clear stall */ 345 f->flag_stall = 0; 346 break; 347 348 case UE_ISOCHRONOUS: 349 usb_config[0].flags.short_xfer_ok = 1; 350 usb_config[0].bufsize = 0; /* use default */ 351 usb_config[0].frames = f->nframes; 352 usb_config[0].callback = &ugen_isoc_read_callback; 353 usb_config[0].timeout = 0; 354 355 /* clone configuration */ 356 usb_config[1] = usb_config[0]; 357 358 if (ugen_transfer_setup(f, usb_config, 2)) { 359 return (EIO); 360 } 361 break; 362 363 default: 364 return (EINVAL); 365 } 366 return (0); 367 } 368 369 static void 370 ugen_start_read(struct usb_fifo *f) 371 { 372 /* check that pipes are open */ 373 if (ugen_open_pipe_read(f)) { 374 /* signal error */ 375 usb_fifo_put_data_error(f); 376 } 377 /* start transfers */ 378 usbd_transfer_start(f->xfer[0]); 379 usbd_transfer_start(f->xfer[1]); 380 } 381 382 static void 383 ugen_start_write(struct usb_fifo *f) 384 { 385 /* check that pipes are open */ 386 if (ugen_open_pipe_write(f)) { 387 /* signal error */ 388 usb_fifo_get_data_error(f); 389 } 390 /* start transfers */ 391 usbd_transfer_start(f->xfer[0]); 392 usbd_transfer_start(f->xfer[1]); 393 } 394 395 static void 396 ugen_stop_io(struct usb_fifo *f) 397 { 398 /* stop transfers */ 399 usbd_transfer_stop(f->xfer[0]); 400 usbd_transfer_stop(f->xfer[1]); 401 } 402 403 static void 404 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 405 { 406 struct usb_fifo *f = usbd_xfer_softc(xfer); 407 struct usb_mbuf *m; 408 409 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 410 411 switch (USB_GET_STATE(xfer)) { 412 case USB_ST_TRANSFERRED: 413 if (xfer->actlen == 0) { 414 if (f->fifo_zlp != 4) { 415 f->fifo_zlp++; 416 } else { 417 /* 418 * Throttle a little bit we have multiple ZLPs 419 * in a row! 420 */ 421 xfer->interval = 64; /* ms */ 422 } 423 } else { 424 /* clear throttle */ 425 xfer->interval = 0; 426 f->fifo_zlp = 0; 427 } 428 usb_fifo_put_data(f, xfer->frbuffers, 0, 429 xfer->actlen, 1); 430 431 case USB_ST_SETUP: 432 if (f->flag_stall) { 433 usbd_transfer_start(f->xfer[1]); 434 break; 435 } 436 USB_IF_POLL(&f->free_q, m); 437 if (m) { 438 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 439 usbd_transfer_submit(xfer); 440 } 441 break; 442 443 default: /* Error */ 444 if (xfer->error != USB_ERR_CANCELLED) { 445 /* send a zero length packet to userland */ 446 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 447 f->flag_stall = 1; 448 f->fifo_zlp = 0; 449 usbd_transfer_start(f->xfer[1]); 450 } 451 break; 452 } 453 } 454 455 static void 456 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 457 { 458 struct usb_fifo *f = usbd_xfer_softc(xfer); 459 usb_frlength_t actlen; 460 461 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 462 463 switch (USB_GET_STATE(xfer)) { 464 case USB_ST_SETUP: 465 case USB_ST_TRANSFERRED: 466 /* 467 * If writing is in stall, just jump to clear stall 468 * callback and solve the situation. 469 */ 470 if (f->flag_stall) { 471 usbd_transfer_start(f->xfer[1]); 472 break; 473 } 474 /* 475 * Write data, setup and perform hardware transfer. 476 */ 477 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 478 xfer->max_data_length, &actlen, 0)) { 479 usbd_xfer_set_frame_len(xfer, 0, actlen); 480 usbd_transfer_submit(xfer); 481 } 482 break; 483 484 default: /* Error */ 485 if (xfer->error != USB_ERR_CANCELLED) { 486 f->flag_stall = 1; 487 usbd_transfer_start(f->xfer[1]); 488 } 489 break; 490 } 491 } 492 493 static void 494 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 495 { 496 struct usb_fifo *f = usbd_xfer_softc(xfer); 497 struct usb_xfer *xfer_other = f->xfer[0]; 498 499 if (f->flag_stall == 0) { 500 /* nothing to do */ 501 return; 502 } 503 if (usbd_clear_stall_callback(xfer, xfer_other)) { 504 DPRINTFN(5, "f=%p: stall cleared\n", f); 505 f->flag_stall = 0; 506 usbd_transfer_start(xfer_other); 507 } 508 } 509 510 static void 511 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 512 { 513 struct usb_fifo *f = usbd_xfer_softc(xfer); 514 struct usb_xfer *xfer_other = f->xfer[0]; 515 516 if (f->flag_stall == 0) { 517 /* nothing to do */ 518 return; 519 } 520 if (usbd_clear_stall_callback(xfer, xfer_other)) { 521 DPRINTFN(5, "f=%p: stall cleared\n", f); 522 f->flag_stall = 0; 523 usbd_transfer_start(xfer_other); 524 } 525 } 526 527 static void 528 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 529 { 530 struct usb_fifo *f = usbd_xfer_softc(xfer); 531 usb_frlength_t offset; 532 usb_frcount_t n; 533 534 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 535 536 switch (USB_GET_STATE(xfer)) { 537 case USB_ST_TRANSFERRED: 538 539 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 540 541 offset = 0; 542 543 for (n = 0; n != xfer->aframes; n++) { 544 usb_fifo_put_data(f, xfer->frbuffers, offset, 545 xfer->frlengths[n], 1); 546 offset += xfer->max_frame_size; 547 } 548 549 case USB_ST_SETUP: 550 tr_setup: 551 for (n = 0; n != xfer->nframes; n++) { 552 /* setup size for next transfer */ 553 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 554 } 555 usbd_transfer_submit(xfer); 556 break; 557 558 default: /* Error */ 559 if (xfer->error == USB_ERR_CANCELLED) { 560 break; 561 } 562 goto tr_setup; 563 } 564 } 565 566 static void 567 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 568 { 569 struct usb_fifo *f = usbd_xfer_softc(xfer); 570 usb_frlength_t actlen; 571 usb_frlength_t offset; 572 usb_frcount_t n; 573 574 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 575 576 switch (USB_GET_STATE(xfer)) { 577 case USB_ST_TRANSFERRED: 578 case USB_ST_SETUP: 579 tr_setup: 580 offset = 0; 581 for (n = 0; n != xfer->nframes; n++) { 582 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 583 xfer->max_frame_size, &actlen, 1)) { 584 usbd_xfer_set_frame_len(xfer, n, actlen); 585 offset += actlen; 586 } else { 587 break; 588 } 589 } 590 591 for (; n != xfer->nframes; n++) { 592 /* fill in zero frames */ 593 usbd_xfer_set_frame_len(xfer, n, 0); 594 } 595 usbd_transfer_submit(xfer); 596 break; 597 598 default: /* Error */ 599 if (xfer->error == USB_ERR_CANCELLED) { 600 break; 601 } 602 goto tr_setup; 603 } 604 } 605 606 static int 607 ugen_set_config(struct usb_fifo *f, uint8_t index) 608 { 609 DPRINTFN(2, "index %u\n", index); 610 611 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 612 /* not possible in device side mode */ 613 return (ENOTTY); 614 } 615 if (f->udev->curr_config_index == index) { 616 /* no change needed */ 617 return (0); 618 } 619 /* make sure all FIFO's are gone */ 620 /* else there can be a deadlock */ 621 if (ugen_fs_uninit(f)) { 622 /* ignore any errors */ 623 DPRINTFN(6, "no FIFOs\n"); 624 } 625 /* change setting - will free generic FIFOs, if any */ 626 if (usbd_set_config_index(f->udev, index)) { 627 return (EIO); 628 } 629 /* probe and attach */ 630 if (usb_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) { 631 return (EIO); 632 } 633 return (0); 634 } 635 636 static int 637 ugen_set_interface(struct usb_fifo *f, 638 uint8_t iface_index, uint8_t alt_index) 639 { 640 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 641 642 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 643 /* not possible in device side mode */ 644 return (ENOTTY); 645 } 646 /* make sure all FIFO's are gone */ 647 /* else there can be a deadlock */ 648 if (ugen_fs_uninit(f)) { 649 /* ignore any errors */ 650 DPRINTFN(6, "no FIFOs\n"); 651 } 652 /* change setting - will free generic FIFOs, if any */ 653 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 654 return (EIO); 655 } 656 /* probe and attach */ 657 if (usb_probe_and_attach(f->udev, iface_index)) { 658 return (EIO); 659 } 660 return (0); 661 } 662 663 /*------------------------------------------------------------------------* 664 * ugen_get_cdesc 665 * 666 * This function will retrieve the complete configuration descriptor 667 * at the given index. 668 *------------------------------------------------------------------------*/ 669 static int 670 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 671 { 672 struct usb_config_descriptor *cdesc; 673 struct usb_device *udev = f->udev; 674 int error; 675 uint16_t len; 676 uint8_t free_data; 677 678 DPRINTFN(6, "\n"); 679 680 if (ugd->ugd_data == NULL) { 681 /* userland pointer should not be zero */ 682 return (EINVAL); 683 } 684 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 685 (ugd->ugd_config_index == udev->curr_config_index)) { 686 cdesc = usbd_get_config_descriptor(udev); 687 if (cdesc == NULL) { 688 return (ENXIO); 689 } 690 free_data = 0; 691 692 } else { 693 if (usbd_req_get_config_desc_full(udev, 694 NULL, &cdesc, M_USBDEV, 695 ugd->ugd_config_index)) { 696 return (ENXIO); 697 } 698 free_data = 1; 699 } 700 701 len = UGETW(cdesc->wTotalLength); 702 if (len > ugd->ugd_maxlen) { 703 len = ugd->ugd_maxlen; 704 } 705 DPRINTFN(6, "len=%u\n", len); 706 707 ugd->ugd_actlen = len; 708 ugd->ugd_offset = 0; 709 710 error = copyout(cdesc, ugd->ugd_data, len); 711 712 if (free_data) { 713 free(cdesc, M_USBDEV); 714 } 715 return (error); 716 } 717 718 static int 719 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 720 { 721 void *ptr = f->udev->bus->scratch[0].data; 722 uint16_t size = sizeof(f->udev->bus->scratch[0].data); 723 int error; 724 725 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 726 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 727 error = EINVAL; 728 } else { 729 730 if (size > ((uint8_t *)ptr)[0]) { 731 size = ((uint8_t *)ptr)[0]; 732 } 733 if (size > ugd->ugd_maxlen) { 734 size = ugd->ugd_maxlen; 735 } 736 ugd->ugd_actlen = size; 737 ugd->ugd_offset = 0; 738 739 error = copyout(ptr, ugd->ugd_data, size); 740 } 741 return (error); 742 } 743 744 /*------------------------------------------------------------------------* 745 * ugen_get_iface_driver 746 * 747 * This function generates an USB interface description for userland. 748 * 749 * Returns: 750 * 0: Success 751 * Else: Failure 752 *------------------------------------------------------------------------*/ 753 static int 754 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 755 { 756 struct usb_device *udev = f->udev; 757 struct usb_interface *iface; 758 const char *ptr; 759 const char *desc; 760 unsigned int len; 761 unsigned int maxlen; 762 char buf[128]; 763 int error; 764 765 DPRINTFN(6, "\n"); 766 767 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 768 /* userland pointer should not be zero */ 769 return (EINVAL); 770 } 771 772 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 773 if ((iface == NULL) || (iface->idesc == NULL)) { 774 /* invalid interface index */ 775 return (EINVAL); 776 } 777 778 /* read out device nameunit string, if any */ 779 if ((iface->subdev != NULL) && 780 device_is_attached(iface->subdev) && 781 (ptr = device_get_nameunit(iface->subdev)) && 782 (desc = device_get_desc(iface->subdev))) { 783 784 /* print description */ 785 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 786 787 /* range checks */ 788 maxlen = ugd->ugd_maxlen - 1; 789 len = strlen(buf); 790 if (len > maxlen) 791 len = maxlen; 792 793 /* update actual length, including terminating zero */ 794 ugd->ugd_actlen = len + 1; 795 796 /* copy out interface description */ 797 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 798 } else { 799 /* zero length string is default */ 800 error = copyout("", ugd->ugd_data, 1); 801 } 802 return (error); 803 } 804 805 /*------------------------------------------------------------------------* 806 * usb_gen_fill_deviceinfo 807 * 808 * This function dumps information about an USB device to the 809 * structure pointed to by the "di" argument. 810 * 811 * Returns: 812 * 0: Success 813 * Else: Failure 814 *------------------------------------------------------------------------*/ 815 static int 816 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 817 { 818 struct usb_device *udev; 819 struct usb_device *hub; 820 821 udev = f->udev; 822 823 bzero(di, sizeof(di[0])); 824 825 di->udi_bus = device_get_unit(udev->bus->bdev); 826 di->udi_addr = udev->address; 827 di->udi_index = udev->device_index; 828 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 829 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 830 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 831 usb_printbcd(di->udi_release, sizeof(di->udi_release), 832 UGETW(udev->ddesc.bcdDevice)); 833 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 834 di->udi_productNo = UGETW(udev->ddesc.idProduct); 835 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 836 di->udi_class = udev->ddesc.bDeviceClass; 837 di->udi_subclass = udev->ddesc.bDeviceSubClass; 838 di->udi_protocol = udev->ddesc.bDeviceProtocol; 839 di->udi_config_no = udev->curr_config_no; 840 di->udi_config_index = udev->curr_config_index; 841 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 842 di->udi_speed = udev->speed; 843 di->udi_mode = udev->flags.usb_mode; 844 di->udi_power_mode = udev->power_mode; 845 di->udi_suspended = udev->flags.peer_suspended; 846 847 hub = udev->parent_hub; 848 if (hub) { 849 di->udi_hubaddr = hub->address; 850 di->udi_hubindex = hub->device_index; 851 di->udi_hubport = udev->port_no; 852 } 853 return (0); 854 } 855 856 /*------------------------------------------------------------------------* 857 * ugen_check_request 858 * 859 * Return values: 860 * 0: Access allowed 861 * Else: No access 862 *------------------------------------------------------------------------*/ 863 static int 864 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 865 { 866 struct usb_endpoint *ep; 867 int error; 868 869 /* 870 * Avoid requests that would damage the bus integrity: 871 */ 872 if (((req->bmRequestType == UT_WRITE_DEVICE) && 873 (req->bRequest == UR_SET_ADDRESS)) || 874 ((req->bmRequestType == UT_WRITE_DEVICE) && 875 (req->bRequest == UR_SET_CONFIG)) || 876 ((req->bmRequestType == UT_WRITE_INTERFACE) && 877 (req->bRequest == UR_SET_INTERFACE))) { 878 /* 879 * These requests can be useful for testing USB drivers. 880 */ 881 error = priv_check(curthread, PRIV_DRIVER); 882 if (error) { 883 return (error); 884 } 885 } 886 /* 887 * Special case - handle clearing of stall 888 */ 889 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 890 891 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 892 if (ep == NULL) { 893 return (EINVAL); 894 } 895 if ((req->bRequest == UR_CLEAR_FEATURE) && 896 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 897 usbd_clear_data_toggle(udev, ep); 898 } 899 } 900 /* TODO: add more checks to verify the interface index */ 901 902 return (0); 903 } 904 905 int 906 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 907 { 908 int error; 909 uint16_t len; 910 uint16_t actlen; 911 912 if (ugen_check_request(f->udev, &ur->ucr_request)) { 913 return (EPERM); 914 } 915 len = UGETW(ur->ucr_request.wLength); 916 917 /* check if "ucr_data" is valid */ 918 if (len != 0) { 919 if (ur->ucr_data == NULL) { 920 return (EFAULT); 921 } 922 } 923 /* do the USB request */ 924 error = usbd_do_request_flags 925 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 926 (ur->ucr_flags & USB_SHORT_XFER_OK) | 927 USB_USER_DATA_PTR, &actlen, 928 USB_DEFAULT_TIMEOUT); 929 930 ur->ucr_actlen = actlen; 931 932 if (error) { 933 error = EIO; 934 } 935 return (error); 936 } 937 938 /*------------------------------------------------------------------------ 939 * ugen_re_enumerate 940 *------------------------------------------------------------------------*/ 941 static int 942 ugen_re_enumerate(struct usb_fifo *f) 943 { 944 struct usb_device *udev = f->udev; 945 int error; 946 947 /* 948 * This request can be useful for testing USB drivers: 949 */ 950 error = priv_check(curthread, PRIV_DRIVER); 951 if (error) { 952 return (error); 953 } 954 if (udev->flags.usb_mode != USB_MODE_HOST) { 955 /* not possible in device side mode */ 956 return (ENOTTY); 957 } 958 /* make sure all FIFO's are gone */ 959 /* else there can be a deadlock */ 960 if (ugen_fs_uninit(f)) { 961 /* ignore any errors */ 962 DPRINTFN(6, "no FIFOs\n"); 963 } 964 if (udev->re_enumerate_wait == 0) { 965 udev->re_enumerate_wait = 1; 966 usb_needs_explore(udev->bus, 0); 967 } 968 return (0); 969 } 970 971 int 972 ugen_fs_uninit(struct usb_fifo *f) 973 { 974 if (f->fs_xfer == NULL) { 975 return (EINVAL); 976 } 977 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 978 free(f->fs_xfer, M_USB); 979 f->fs_xfer = NULL; 980 f->fs_ep_max = 0; 981 f->fs_ep_ptr = NULL; 982 f->flag_iscomplete = 0; 983 usb_fifo_free_buffer(f); 984 return (0); 985 } 986 987 static uint8_t 988 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 989 { 990 struct usb_mbuf *m; 991 992 USB_IF_DEQUEUE(&f->used_q, m); 993 994 if (m) { 995 *pindex = *((uint8_t *)(m->cur_data_ptr)); 996 997 USB_IF_ENQUEUE(&f->free_q, m); 998 999 return (0); /* success */ 1000 } else { 1001 1002 *pindex = 0; /* fix compiler warning */ 1003 1004 f->flag_iscomplete = 0; 1005 } 1006 return (1); /* failure */ 1007 } 1008 1009 static void 1010 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1011 { 1012 struct usb_mbuf *m; 1013 1014 USB_IF_DEQUEUE(&f->free_q, m); 1015 1016 if (m == NULL) { 1017 /* can happen during close */ 1018 DPRINTF("out of buffers\n"); 1019 return; 1020 } 1021 USB_MBUF_RESET(m); 1022 1023 *((uint8_t *)(m->cur_data_ptr)) = index; 1024 1025 USB_IF_ENQUEUE(&f->used_q, m); 1026 1027 f->flag_iscomplete = 1; 1028 1029 usb_fifo_wakeup(f); 1030 } 1031 1032 static int 1033 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1034 { 1035 struct usb_device_request *req; 1036 struct usb_xfer *xfer; 1037 struct usb_fs_endpoint fs_ep; 1038 void *uaddr; /* userland pointer */ 1039 void *kaddr; 1040 usb_frlength_t offset; 1041 usb_frlength_t rem; 1042 usb_frcount_t n; 1043 uint32_t length; 1044 int error; 1045 uint8_t isread; 1046 1047 if (ep_index >= f->fs_ep_max) { 1048 return (EINVAL); 1049 } 1050 xfer = f->fs_xfer[ep_index]; 1051 if (xfer == NULL) { 1052 return (EINVAL); 1053 } 1054 mtx_lock(f->priv_mtx); 1055 if (usbd_transfer_pending(xfer)) { 1056 mtx_unlock(f->priv_mtx); 1057 return (EBUSY); /* should not happen */ 1058 } 1059 mtx_unlock(f->priv_mtx); 1060 1061 error = copyin(f->fs_ep_ptr + 1062 ep_index, &fs_ep, sizeof(fs_ep)); 1063 if (error) { 1064 return (error); 1065 } 1066 /* security checks */ 1067 1068 if (fs_ep.nFrames > xfer->max_frame_count) { 1069 xfer->error = USB_ERR_INVAL; 1070 goto complete; 1071 } 1072 if (fs_ep.nFrames == 0) { 1073 xfer->error = USB_ERR_INVAL; 1074 goto complete; 1075 } 1076 error = copyin(fs_ep.ppBuffer, 1077 &uaddr, sizeof(uaddr)); 1078 if (error) { 1079 return (error); 1080 } 1081 /* reset first frame */ 1082 usbd_xfer_set_frame_offset(xfer, 0, 0); 1083 1084 if (xfer->flags_int.control_xfr) { 1085 1086 req = xfer->frbuffers[0].buffer; 1087 1088 error = copyin(fs_ep.pLength, 1089 &length, sizeof(length)); 1090 if (error) { 1091 return (error); 1092 } 1093 if (length != sizeof(*req)) { 1094 xfer->error = USB_ERR_INVAL; 1095 goto complete; 1096 } 1097 if (length != 0) { 1098 error = copyin(uaddr, req, length); 1099 if (error) { 1100 return (error); 1101 } 1102 } 1103 if (ugen_check_request(f->udev, req)) { 1104 xfer->error = USB_ERR_INVAL; 1105 goto complete; 1106 } 1107 usbd_xfer_set_frame_len(xfer, 0, length); 1108 1109 /* Host mode only ! */ 1110 if ((req->bmRequestType & 1111 (UT_READ | UT_WRITE)) == UT_READ) { 1112 isread = 1; 1113 } else { 1114 isread = 0; 1115 } 1116 n = 1; 1117 offset = sizeof(*req); 1118 1119 } else { 1120 /* Device and Host mode */ 1121 if (USB_GET_DATA_ISREAD(xfer)) { 1122 isread = 1; 1123 } else { 1124 isread = 0; 1125 } 1126 n = 0; 1127 offset = 0; 1128 } 1129 1130 rem = usbd_xfer_max_len(xfer); 1131 xfer->nframes = fs_ep.nFrames; 1132 xfer->timeout = fs_ep.timeout; 1133 if (xfer->timeout > 65535) { 1134 xfer->timeout = 65535; 1135 } 1136 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1137 xfer->flags.short_xfer_ok = 1; 1138 else 1139 xfer->flags.short_xfer_ok = 0; 1140 1141 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1142 xfer->flags.short_frames_ok = 1; 1143 else 1144 xfer->flags.short_frames_ok = 0; 1145 1146 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1147 xfer->flags.force_short_xfer = 1; 1148 else 1149 xfer->flags.force_short_xfer = 0; 1150 1151 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1152 usbd_xfer_set_stall(xfer); 1153 else 1154 xfer->flags.stall_pipe = 0; 1155 1156 for (; n != xfer->nframes; n++) { 1157 1158 error = copyin(fs_ep.pLength + n, 1159 &length, sizeof(length)); 1160 if (error) { 1161 break; 1162 } 1163 usbd_xfer_set_frame_len(xfer, n, length); 1164 1165 if (length > rem) { 1166 xfer->error = USB_ERR_INVAL; 1167 goto complete; 1168 } 1169 rem -= length; 1170 1171 if (!isread) { 1172 1173 /* we need to know the source buffer */ 1174 error = copyin(fs_ep.ppBuffer + n, 1175 &uaddr, sizeof(uaddr)); 1176 if (error) { 1177 break; 1178 } 1179 if (xfer->flags_int.isochronous_xfr) { 1180 /* get kernel buffer address */ 1181 kaddr = xfer->frbuffers[0].buffer; 1182 kaddr = USB_ADD_BYTES(kaddr, offset); 1183 } else { 1184 /* set current frame offset */ 1185 usbd_xfer_set_frame_offset(xfer, offset, n); 1186 1187 /* get kernel buffer address */ 1188 kaddr = xfer->frbuffers[n].buffer; 1189 } 1190 1191 /* move data */ 1192 error = copyin(uaddr, kaddr, length); 1193 if (error) { 1194 break; 1195 } 1196 } 1197 offset += length; 1198 } 1199 return (error); 1200 1201 complete: 1202 mtx_lock(f->priv_mtx); 1203 ugen_fs_set_complete(f, ep_index); 1204 mtx_unlock(f->priv_mtx); 1205 return (0); 1206 } 1207 1208 static int 1209 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1210 { 1211 struct usb_device_request *req; 1212 struct usb_xfer *xfer; 1213 struct usb_fs_endpoint fs_ep; 1214 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1215 void *uaddr; /* userland ptr */ 1216 void *kaddr; 1217 usb_frlength_t offset; 1218 usb_frlength_t rem; 1219 usb_frcount_t n; 1220 uint32_t length; 1221 uint32_t temp; 1222 int error; 1223 uint8_t isread; 1224 1225 if (ep_index >= f->fs_ep_max) 1226 return (EINVAL); 1227 1228 xfer = f->fs_xfer[ep_index]; 1229 if (xfer == NULL) 1230 return (EINVAL); 1231 1232 mtx_lock(f->priv_mtx); 1233 if (usbd_transfer_pending(xfer)) { 1234 mtx_unlock(f->priv_mtx); 1235 return (EBUSY); /* should not happen */ 1236 } 1237 mtx_unlock(f->priv_mtx); 1238 1239 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1240 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1241 if (error) { 1242 return (error); 1243 } 1244 fs_ep.status = xfer->error; 1245 fs_ep.aFrames = xfer->aframes; 1246 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1247 if (xfer->error) { 1248 goto complete; 1249 } 1250 if (xfer->flags_int.control_xfr) { 1251 req = xfer->frbuffers[0].buffer; 1252 1253 /* Host mode only ! */ 1254 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1255 isread = 1; 1256 } else { 1257 isread = 0; 1258 } 1259 if (xfer->nframes == 0) 1260 n = 0; /* should never happen */ 1261 else 1262 n = 1; 1263 } else { 1264 /* Device and Host mode */ 1265 if (USB_GET_DATA_ISREAD(xfer)) { 1266 isread = 1; 1267 } else { 1268 isread = 0; 1269 } 1270 n = 0; 1271 } 1272 1273 /* Update lengths and copy out data */ 1274 1275 rem = usbd_xfer_max_len(xfer); 1276 offset = 0; 1277 1278 for (; n != xfer->nframes; n++) { 1279 1280 /* get initial length into "temp" */ 1281 error = copyin(fs_ep.pLength + n, 1282 &temp, sizeof(temp)); 1283 if (error) { 1284 return (error); 1285 } 1286 if (temp > rem) { 1287 /* the userland length has been corrupted */ 1288 DPRINTF("corrupt userland length " 1289 "%u > %u\n", temp, rem); 1290 fs_ep.status = USB_ERR_INVAL; 1291 goto complete; 1292 } 1293 rem -= temp; 1294 1295 /* get actual transfer length */ 1296 length = xfer->frlengths[n]; 1297 if (length > temp) { 1298 /* data overflow */ 1299 fs_ep.status = USB_ERR_INVAL; 1300 DPRINTF("data overflow %u > %u\n", 1301 length, temp); 1302 goto complete; 1303 } 1304 if (isread) { 1305 1306 /* we need to know the destination buffer */ 1307 error = copyin(fs_ep.ppBuffer + n, 1308 &uaddr, sizeof(uaddr)); 1309 if (error) { 1310 return (error); 1311 } 1312 if (xfer->flags_int.isochronous_xfr) { 1313 /* only one frame buffer */ 1314 kaddr = USB_ADD_BYTES( 1315 xfer->frbuffers[0].buffer, offset); 1316 } else { 1317 /* multiple frame buffers */ 1318 kaddr = xfer->frbuffers[n].buffer; 1319 } 1320 1321 /* move data */ 1322 error = copyout(kaddr, uaddr, length); 1323 if (error) { 1324 return (error); 1325 } 1326 } 1327 /* 1328 * Update offset according to initial length, which is 1329 * needed by isochronous transfers! 1330 */ 1331 offset += temp; 1332 1333 /* update length */ 1334 error = copyout(&length, 1335 fs_ep.pLength + n, sizeof(length)); 1336 if (error) { 1337 return (error); 1338 } 1339 } 1340 1341 complete: 1342 /* update "aFrames" */ 1343 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1344 sizeof(fs_ep.aFrames)); 1345 if (error) 1346 goto done; 1347 1348 /* update "isoc_time_complete" */ 1349 error = copyout(&fs_ep.isoc_time_complete, 1350 &fs_ep_uptr->isoc_time_complete, 1351 sizeof(fs_ep.isoc_time_complete)); 1352 if (error) 1353 goto done; 1354 /* update "status" */ 1355 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1356 sizeof(fs_ep.status)); 1357 done: 1358 return (error); 1359 } 1360 1361 static uint8_t 1362 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1363 { 1364 struct usb_fifo *f_rx; 1365 struct usb_fifo *f_tx; 1366 1367 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1368 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1369 1370 if ((fflags & FREAD) && f_rx && 1371 (f_rx->xfer[0] || f_rx->xfer[1])) { 1372 return (1); /* RX FIFO in use */ 1373 } 1374 if ((fflags & FWRITE) && f_tx && 1375 (f_tx->xfer[0] || f_tx->xfer[1])) { 1376 return (1); /* TX FIFO in use */ 1377 } 1378 return (0); /* not in use */ 1379 } 1380 1381 static int 1382 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1383 { 1384 struct usb_config usb_config[1]; 1385 struct usb_device_request req; 1386 union { 1387 struct usb_fs_complete *pcomp; 1388 struct usb_fs_start *pstart; 1389 struct usb_fs_stop *pstop; 1390 struct usb_fs_open *popen; 1391 struct usb_fs_close *pclose; 1392 struct usb_fs_clear_stall_sync *pstall; 1393 void *addr; 1394 } u; 1395 struct usb_endpoint *ep; 1396 struct usb_endpoint_descriptor *ed; 1397 int error = 0; 1398 uint8_t iface_index; 1399 uint8_t isread; 1400 uint8_t ep_index; 1401 1402 u.addr = addr; 1403 1404 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1405 1406 switch (cmd) { 1407 case USB_FS_COMPLETE: 1408 mtx_lock(f->priv_mtx); 1409 error = ugen_fs_get_complete(f, &ep_index); 1410 mtx_unlock(f->priv_mtx); 1411 1412 if (error) { 1413 error = EBUSY; 1414 break; 1415 } 1416 u.pcomp->ep_index = ep_index; 1417 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1418 break; 1419 1420 case USB_FS_START: 1421 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1422 if (error) { 1423 break; 1424 } 1425 mtx_lock(f->priv_mtx); 1426 usbd_transfer_start(f->fs_xfer[u.pstart->ep_index]); 1427 mtx_unlock(f->priv_mtx); 1428 break; 1429 1430 case USB_FS_STOP: 1431 if (u.pstop->ep_index >= f->fs_ep_max) { 1432 error = EINVAL; 1433 break; 1434 } 1435 mtx_lock(f->priv_mtx); 1436 usbd_transfer_stop(f->fs_xfer[u.pstop->ep_index]); 1437 mtx_unlock(f->priv_mtx); 1438 break; 1439 1440 case USB_FS_OPEN: 1441 if (u.popen->ep_index >= f->fs_ep_max) { 1442 error = EINVAL; 1443 break; 1444 } 1445 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1446 error = EBUSY; 1447 break; 1448 } 1449 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1450 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1451 } 1452 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1453 u.popen->max_frames = USB_FS_MAX_FRAMES; 1454 break; 1455 } 1456 if (u.popen->max_frames == 0) { 1457 error = EINVAL; 1458 break; 1459 } 1460 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1461 if (ep == NULL) { 1462 error = EINVAL; 1463 break; 1464 } 1465 ed = ep->edesc; 1466 if (ed == NULL) { 1467 error = ENXIO; 1468 break; 1469 } 1470 iface_index = ep->iface_index; 1471 1472 bzero(usb_config, sizeof(usb_config)); 1473 1474 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1475 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1476 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1477 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1478 usb_config[0].flags.proxy_buffer = 1; 1479 usb_config[0].callback = &ugen_ctrl_fs_callback; 1480 usb_config[0].timeout = 0; /* no timeout */ 1481 usb_config[0].frames = u.popen->max_frames; 1482 usb_config[0].bufsize = u.popen->max_bufsize; 1483 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1484 1485 if (usb_config[0].type == UE_CONTROL) { 1486 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1487 error = EINVAL; 1488 break; 1489 } 1490 } else { 1491 1492 isread = ((usb_config[0].endpoint & 1493 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1494 1495 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1496 isread = !isread; 1497 } 1498 /* check permissions */ 1499 if (isread) { 1500 if (!(fflags & FREAD)) { 1501 error = EPERM; 1502 break; 1503 } 1504 } else { 1505 if (!(fflags & FWRITE)) { 1506 error = EPERM; 1507 break; 1508 } 1509 } 1510 } 1511 error = usbd_transfer_setup(f->udev, &iface_index, 1512 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1513 f, f->priv_mtx); 1514 if (error == 0) { 1515 /* update maximums */ 1516 u.popen->max_packet_length = 1517 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1518 u.popen->max_bufsize = 1519 f->fs_xfer[u.popen->ep_index]->max_data_length; 1520 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1521 ((uint8_t *)0) + u.popen->ep_index; 1522 } else { 1523 error = ENOMEM; 1524 } 1525 break; 1526 1527 case USB_FS_CLOSE: 1528 if (u.pclose->ep_index >= f->fs_ep_max) { 1529 error = EINVAL; 1530 break; 1531 } 1532 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1533 error = EINVAL; 1534 break; 1535 } 1536 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1537 break; 1538 1539 case USB_FS_CLEAR_STALL_SYNC: 1540 if (u.pstall->ep_index >= f->fs_ep_max) { 1541 error = EINVAL; 1542 break; 1543 } 1544 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1545 error = EINVAL; 1546 break; 1547 } 1548 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1549 error = EINVAL; 1550 break; 1551 } 1552 mtx_lock(f->priv_mtx); 1553 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1554 mtx_unlock(f->priv_mtx); 1555 1556 if (error) { 1557 return (EBUSY); 1558 } 1559 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1560 1561 /* setup a clear-stall packet */ 1562 req.bmRequestType = UT_WRITE_ENDPOINT; 1563 req.bRequest = UR_CLEAR_FEATURE; 1564 USETW(req.wValue, UF_ENDPOINT_HALT); 1565 req.wIndex[0] = ep->edesc->bEndpointAddress; 1566 req.wIndex[1] = 0; 1567 USETW(req.wLength, 0); 1568 1569 error = usbd_do_request(f->udev, NULL, &req, NULL); 1570 if (error == 0) { 1571 usbd_clear_data_toggle(f->udev, ep); 1572 } else { 1573 error = ENXIO; 1574 } 1575 break; 1576 1577 default: 1578 error = ENOIOCTL; 1579 break; 1580 } 1581 1582 DPRINTFN(6, "error=%d\n", error); 1583 1584 return (error); 1585 } 1586 1587 static int 1588 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1589 { 1590 uint8_t t; 1591 1592 if (*(int *)addr) 1593 t = 1; 1594 else 1595 t = 0; 1596 1597 if (f->flag_short == t) { 1598 /* same value like before - accept */ 1599 return (0); 1600 } 1601 if (f->xfer[0] || f->xfer[1]) { 1602 /* cannot change this during transfer */ 1603 return (EBUSY); 1604 } 1605 f->flag_short = t; 1606 return (0); 1607 } 1608 1609 static int 1610 ugen_set_timeout(struct usb_fifo *f, void *addr) 1611 { 1612 f->timeout = *(int *)addr; 1613 if (f->timeout > 65535) { 1614 /* limit user input */ 1615 f->timeout = 65535; 1616 } 1617 return (0); 1618 } 1619 1620 static int 1621 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1622 { 1623 if (f->xfer[0]) { 1624 *(int *)addr = f->xfer[0]->max_frame_size; 1625 } else { 1626 return (EINVAL); 1627 } 1628 return (0); 1629 } 1630 1631 static int 1632 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1633 { 1634 usb_frlength_t t; 1635 1636 if (*(int *)addr < 0) 1637 t = 0; /* use "wMaxPacketSize" */ 1638 else if (*(int *)addr < (256 * 1024)) 1639 t = *(int *)addr; 1640 else 1641 t = 256 * 1024; 1642 1643 if (f->bufsize == t) { 1644 /* same value like before - accept */ 1645 return (0); 1646 } 1647 if (f->xfer[0] || f->xfer[1]) { 1648 /* cannot change this during transfer */ 1649 return (EBUSY); 1650 } 1651 f->bufsize = t; 1652 return (0); 1653 } 1654 1655 static int 1656 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1657 { 1658 *(int *)addr = f->bufsize; 1659 return (0); 1660 } 1661 1662 static int 1663 ugen_get_iface_desc(struct usb_fifo *f, 1664 struct usb_interface_descriptor *idesc) 1665 { 1666 struct usb_interface *iface; 1667 1668 iface = usbd_get_iface(f->udev, f->iface_index); 1669 if (iface && iface->idesc) { 1670 *idesc = *(iface->idesc); 1671 } else { 1672 return (EIO); 1673 } 1674 return (0); 1675 } 1676 1677 static int 1678 ugen_get_endpoint_desc(struct usb_fifo *f, 1679 struct usb_endpoint_descriptor *ed) 1680 { 1681 struct usb_endpoint *ep; 1682 1683 ep = usb_fifo_softc(f); 1684 1685 if (ep && ep->edesc) { 1686 *ed = *ep->edesc; 1687 } else { 1688 return (EINVAL); 1689 } 1690 return (0); 1691 } 1692 1693 static int 1694 ugen_set_power_mode(struct usb_fifo *f, int mode) 1695 { 1696 struct usb_device *udev = f->udev; 1697 int err; 1698 uint8_t old_mode; 1699 1700 if ((udev == NULL) || 1701 (udev->parent_hub == NULL)) { 1702 return (EINVAL); 1703 } 1704 err = priv_check(curthread, PRIV_DRIVER); 1705 if (err) 1706 return (err); 1707 1708 /* get old power mode */ 1709 old_mode = udev->power_mode; 1710 1711 /* if no change, then just return */ 1712 if (old_mode == mode) 1713 return (0); 1714 1715 switch (mode) { 1716 case USB_POWER_MODE_OFF: 1717 /* get the device unconfigured */ 1718 err = ugen_set_config(f, USB_UNCONFIG_INDEX); 1719 if (err) { 1720 DPRINTFN(0, "Could not unconfigure " 1721 "device (ignored)\n"); 1722 } 1723 1724 /* clear port enable */ 1725 err = usbd_req_clear_port_feature(udev->parent_hub, 1726 NULL, udev->port_no, UHF_PORT_ENABLE); 1727 break; 1728 1729 case USB_POWER_MODE_ON: 1730 case USB_POWER_MODE_SAVE: 1731 break; 1732 1733 case USB_POWER_MODE_RESUME: 1734 #if USB_HAVE_POWERD 1735 /* let USB-powerd handle resume */ 1736 USB_BUS_LOCK(udev->bus); 1737 udev->pwr_save.write_refs++; 1738 udev->pwr_save.last_xfer_time = ticks; 1739 USB_BUS_UNLOCK(udev->bus); 1740 1741 /* set new power mode */ 1742 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1743 1744 /* wait for resume to complete */ 1745 usb_pause_mtx(NULL, hz / 4); 1746 1747 /* clear write reference */ 1748 USB_BUS_LOCK(udev->bus); 1749 udev->pwr_save.write_refs--; 1750 USB_BUS_UNLOCK(udev->bus); 1751 #endif 1752 mode = USB_POWER_MODE_SAVE; 1753 break; 1754 1755 case USB_POWER_MODE_SUSPEND: 1756 #if USB_HAVE_POWERD 1757 /* let USB-powerd handle suspend */ 1758 USB_BUS_LOCK(udev->bus); 1759 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1760 USB_BUS_UNLOCK(udev->bus); 1761 #endif 1762 mode = USB_POWER_MODE_SAVE; 1763 break; 1764 1765 default: 1766 return (EINVAL); 1767 } 1768 1769 if (err) 1770 return (ENXIO); /* I/O failure */ 1771 1772 /* if we are powered off we need to re-enumerate first */ 1773 if (old_mode == USB_POWER_MODE_OFF) { 1774 if (udev->flags.usb_mode == USB_MODE_HOST) { 1775 if (udev->re_enumerate_wait == 0) 1776 udev->re_enumerate_wait = 1; 1777 } 1778 /* set power mode will wake up the explore thread */ 1779 } 1780 1781 /* set new power mode */ 1782 usbd_set_power_mode(udev, mode); 1783 1784 return (0); /* success */ 1785 } 1786 1787 static int 1788 ugen_get_power_mode(struct usb_fifo *f) 1789 { 1790 struct usb_device *udev = f->udev; 1791 1792 if (udev == NULL) 1793 return (USB_POWER_MODE_ON); 1794 1795 return (udev->power_mode); 1796 } 1797 1798 static int 1799 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1800 uint8_t set, uint16_t feature) 1801 { 1802 struct usb_device *udev = f->udev; 1803 struct usb_hub *hub; 1804 int err; 1805 1806 err = priv_check(curthread, PRIV_DRIVER); 1807 if (err) { 1808 return (err); 1809 } 1810 if (port_no == 0) { 1811 return (EINVAL); 1812 } 1813 if ((udev == NULL) || 1814 (udev->hub == NULL)) { 1815 return (EINVAL); 1816 } 1817 hub = udev->hub; 1818 1819 if (port_no > hub->nports) { 1820 return (EINVAL); 1821 } 1822 if (set) 1823 err = usbd_req_set_port_feature(udev, 1824 NULL, port_no, feature); 1825 else 1826 err = usbd_req_clear_port_feature(udev, 1827 NULL, port_no, feature); 1828 1829 if (err) 1830 return (ENXIO); /* failure */ 1831 1832 return (0); /* success */ 1833 } 1834 1835 static int 1836 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1837 { 1838 struct usb_fifo *f_rx; 1839 struct usb_fifo *f_tx; 1840 int error = 0; 1841 1842 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1843 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1844 1845 switch (cmd) { 1846 case USB_SET_RX_SHORT_XFER: 1847 if (fflags & FREAD) { 1848 error = ugen_set_short_xfer(f_rx, addr); 1849 } else { 1850 error = EINVAL; 1851 } 1852 break; 1853 1854 case USB_SET_TX_FORCE_SHORT: 1855 if (fflags & FWRITE) { 1856 error = ugen_set_short_xfer(f_tx, addr); 1857 } else { 1858 error = EINVAL; 1859 } 1860 break; 1861 1862 case USB_SET_RX_TIMEOUT: 1863 if (fflags & FREAD) { 1864 error = ugen_set_timeout(f_rx, addr); 1865 } else { 1866 error = EINVAL; 1867 } 1868 break; 1869 1870 case USB_SET_TX_TIMEOUT: 1871 if (fflags & FWRITE) { 1872 error = ugen_set_timeout(f_tx, addr); 1873 } else { 1874 error = EINVAL; 1875 } 1876 break; 1877 1878 case USB_GET_RX_FRAME_SIZE: 1879 if (fflags & FREAD) { 1880 error = ugen_get_frame_size(f_rx, addr); 1881 } else { 1882 error = EINVAL; 1883 } 1884 break; 1885 1886 case USB_GET_TX_FRAME_SIZE: 1887 if (fflags & FWRITE) { 1888 error = ugen_get_frame_size(f_tx, addr); 1889 } else { 1890 error = EINVAL; 1891 } 1892 break; 1893 1894 case USB_SET_RX_BUFFER_SIZE: 1895 if (fflags & FREAD) { 1896 error = ugen_set_buffer_size(f_rx, addr); 1897 } else { 1898 error = EINVAL; 1899 } 1900 break; 1901 1902 case USB_SET_TX_BUFFER_SIZE: 1903 if (fflags & FWRITE) { 1904 error = ugen_set_buffer_size(f_tx, addr); 1905 } else { 1906 error = EINVAL; 1907 } 1908 break; 1909 1910 case USB_GET_RX_BUFFER_SIZE: 1911 if (fflags & FREAD) { 1912 error = ugen_get_buffer_size(f_rx, addr); 1913 } else { 1914 error = EINVAL; 1915 } 1916 break; 1917 1918 case USB_GET_TX_BUFFER_SIZE: 1919 if (fflags & FWRITE) { 1920 error = ugen_get_buffer_size(f_tx, addr); 1921 } else { 1922 error = EINVAL; 1923 } 1924 break; 1925 1926 case USB_GET_RX_INTERFACE_DESC: 1927 if (fflags & FREAD) { 1928 error = ugen_get_iface_desc(f_rx, addr); 1929 } else { 1930 error = EINVAL; 1931 } 1932 break; 1933 1934 case USB_GET_TX_INTERFACE_DESC: 1935 if (fflags & FWRITE) { 1936 error = ugen_get_iface_desc(f_tx, addr); 1937 } else { 1938 error = EINVAL; 1939 } 1940 break; 1941 1942 case USB_GET_RX_ENDPOINT_DESC: 1943 if (fflags & FREAD) { 1944 error = ugen_get_endpoint_desc(f_rx, addr); 1945 } else { 1946 error = EINVAL; 1947 } 1948 break; 1949 1950 case USB_GET_TX_ENDPOINT_DESC: 1951 if (fflags & FWRITE) { 1952 error = ugen_get_endpoint_desc(f_tx, addr); 1953 } else { 1954 error = EINVAL; 1955 } 1956 break; 1957 1958 case USB_SET_RX_STALL_FLAG: 1959 if ((fflags & FREAD) && (*(int *)addr)) { 1960 f_rx->flag_stall = 1; 1961 } 1962 break; 1963 1964 case USB_SET_TX_STALL_FLAG: 1965 if ((fflags & FWRITE) && (*(int *)addr)) { 1966 f_tx->flag_stall = 1; 1967 } 1968 break; 1969 1970 default: 1971 error = ENOIOCTL; 1972 break; 1973 } 1974 return (error); 1975 } 1976 1977 static int 1978 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1979 { 1980 union { 1981 struct usb_interface_descriptor *idesc; 1982 struct usb_alt_interface *ai; 1983 struct usb_device_descriptor *ddesc; 1984 struct usb_config_descriptor *cdesc; 1985 struct usb_device_stats *stat; 1986 struct usb_fs_init *pinit; 1987 struct usb_fs_uninit *puninit; 1988 uint32_t *ptime; 1989 void *addr; 1990 int *pint; 1991 } u; 1992 struct usb_device_descriptor *dtemp; 1993 struct usb_config_descriptor *ctemp; 1994 struct usb_interface *iface; 1995 int error = 0; 1996 uint8_t n; 1997 1998 u.addr = addr; 1999 2000 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2001 2002 switch (cmd) { 2003 case USB_DISCOVER: 2004 usb_needs_explore_all(); 2005 break; 2006 2007 case USB_SETDEBUG: 2008 if (!(fflags & FWRITE)) { 2009 error = EPERM; 2010 break; 2011 } 2012 usb_debug = *(int *)addr; 2013 break; 2014 2015 case USB_GET_CONFIG: 2016 *(int *)addr = f->udev->curr_config_index; 2017 break; 2018 2019 case USB_SET_CONFIG: 2020 if (!(fflags & FWRITE)) { 2021 error = EPERM; 2022 break; 2023 } 2024 error = ugen_set_config(f, *(int *)addr); 2025 break; 2026 2027 case USB_GET_ALTINTERFACE: 2028 iface = usbd_get_iface(f->udev, 2029 u.ai->uai_interface_index); 2030 if (iface && iface->idesc) { 2031 u.ai->uai_alt_index = iface->alt_index; 2032 } else { 2033 error = EINVAL; 2034 } 2035 break; 2036 2037 case USB_SET_ALTINTERFACE: 2038 if (!(fflags & FWRITE)) { 2039 error = EPERM; 2040 break; 2041 } 2042 error = ugen_set_interface(f, 2043 u.ai->uai_interface_index, u.ai->uai_alt_index); 2044 break; 2045 2046 case USB_GET_DEVICE_DESC: 2047 dtemp = usbd_get_device_descriptor(f->udev); 2048 if (!dtemp) { 2049 error = EIO; 2050 break; 2051 } 2052 *u.ddesc = *dtemp; 2053 break; 2054 2055 case USB_GET_CONFIG_DESC: 2056 ctemp = usbd_get_config_descriptor(f->udev); 2057 if (!ctemp) { 2058 error = EIO; 2059 break; 2060 } 2061 *u.cdesc = *ctemp; 2062 break; 2063 2064 case USB_GET_FULL_DESC: 2065 error = ugen_get_cdesc(f, addr); 2066 break; 2067 2068 case USB_GET_STRING_DESC: 2069 error = ugen_get_sdesc(f, addr); 2070 break; 2071 2072 case USB_GET_IFACE_DRIVER: 2073 error = ugen_get_iface_driver(f, addr); 2074 break; 2075 2076 case USB_REQUEST: 2077 case USB_DO_REQUEST: 2078 if (!(fflags & FWRITE)) { 2079 error = EPERM; 2080 break; 2081 } 2082 error = ugen_do_request(f, addr); 2083 break; 2084 2085 case USB_DEVICEINFO: 2086 case USB_GET_DEVICEINFO: 2087 error = usb_gen_fill_deviceinfo(f, addr); 2088 break; 2089 2090 case USB_DEVICESTATS: 2091 for (n = 0; n != 4; n++) { 2092 2093 u.stat->uds_requests_fail[n] = 2094 f->udev->bus->stats_err.uds_requests[n]; 2095 2096 u.stat->uds_requests_ok[n] = 2097 f->udev->bus->stats_ok.uds_requests[n]; 2098 } 2099 break; 2100 2101 case USB_DEVICEENUMERATE: 2102 error = ugen_re_enumerate(f); 2103 break; 2104 2105 case USB_GET_PLUGTIME: 2106 *u.ptime = f->udev->plugtime; 2107 break; 2108 2109 case USB_CLAIM_INTERFACE: 2110 case USB_RELEASE_INTERFACE: 2111 /* TODO */ 2112 break; 2113 2114 case USB_IFACE_DRIVER_ACTIVE: 2115 2116 n = *u.pint & 0xFF; 2117 2118 iface = usbd_get_iface(f->udev, n); 2119 2120 if (iface && iface->subdev) 2121 error = 0; 2122 else 2123 error = ENXIO; 2124 break; 2125 2126 case USB_IFACE_DRIVER_DETACH: 2127 2128 error = priv_check(curthread, PRIV_DRIVER); 2129 2130 if (error) 2131 break; 2132 2133 n = *u.pint & 0xFF; 2134 2135 if (n == USB_IFACE_INDEX_ANY) { 2136 error = EINVAL; 2137 break; 2138 } 2139 2140 usb_detach_device(f->udev, n, 0); 2141 break; 2142 2143 case USB_SET_POWER_MODE: 2144 error = ugen_set_power_mode(f, *u.pint); 2145 break; 2146 2147 case USB_GET_POWER_MODE: 2148 *u.pint = ugen_get_power_mode(f); 2149 break; 2150 2151 case USB_SET_PORT_ENABLE: 2152 error = ugen_do_port_feature(f, 2153 *u.pint, 1, UHF_PORT_ENABLE); 2154 break; 2155 2156 case USB_SET_PORT_DISABLE: 2157 error = ugen_do_port_feature(f, 2158 *u.pint, 0, UHF_PORT_ENABLE); 2159 break; 2160 2161 case USB_FS_INIT: 2162 /* verify input parameters */ 2163 if (u.pinit->pEndpoints == NULL) { 2164 error = EINVAL; 2165 break; 2166 } 2167 if (u.pinit->ep_index_max > 127) { 2168 error = EINVAL; 2169 break; 2170 } 2171 if (u.pinit->ep_index_max == 0) { 2172 error = EINVAL; 2173 break; 2174 } 2175 if (f->fs_xfer != NULL) { 2176 error = EBUSY; 2177 break; 2178 } 2179 if (f->dev_ep_index != 0) { 2180 error = EINVAL; 2181 break; 2182 } 2183 if (ugen_fifo_in_use(f, fflags)) { 2184 error = EBUSY; 2185 break; 2186 } 2187 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2188 if (error) { 2189 break; 2190 } 2191 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2192 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2193 if (f->fs_xfer == NULL) { 2194 usb_fifo_free_buffer(f); 2195 error = ENOMEM; 2196 break; 2197 } 2198 f->fs_ep_max = u.pinit->ep_index_max; 2199 f->fs_ep_ptr = u.pinit->pEndpoints; 2200 break; 2201 2202 case USB_FS_UNINIT: 2203 if (u.puninit->dummy != 0) { 2204 error = EINVAL; 2205 break; 2206 } 2207 error = ugen_fs_uninit(f); 2208 break; 2209 2210 default: 2211 mtx_lock(f->priv_mtx); 2212 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2213 mtx_unlock(f->priv_mtx); 2214 break; 2215 } 2216 DPRINTFN(6, "error=%d\n", error); 2217 return (error); 2218 } 2219 2220 static void 2221 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2222 { 2223 ; /* workaround for a bug in "indent" */ 2224 2225 DPRINTF("st=%u alen=%u aframes=%u\n", 2226 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2227 2228 switch (USB_GET_STATE(xfer)) { 2229 case USB_ST_SETUP: 2230 usbd_transfer_submit(xfer); 2231 break; 2232 default: 2233 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2234 break; 2235 } 2236 } 2237 #endif /* USB_HAVE_UGEN */ 2238