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 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 bzero(usb_config, 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 bzero(usb_config, 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 return (ENOTTY); 956 } 957 /* make sure all FIFO's are gone */ 958 /* else there can be a deadlock */ 959 if (ugen_fs_uninit(f)) { 960 /* ignore any errors */ 961 DPRINTFN(6, "no FIFOs\n"); 962 } 963 if (udev->re_enumerate_wait == 0) { 964 udev->re_enumerate_wait = 1; 965 usb_needs_explore(udev->bus, 0); 966 } 967 return (0); 968 } 969 970 int 971 ugen_fs_uninit(struct usb_fifo *f) 972 { 973 if (f->fs_xfer == NULL) { 974 return (EINVAL); 975 } 976 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 977 free(f->fs_xfer, M_USB); 978 f->fs_xfer = NULL; 979 f->fs_ep_max = 0; 980 f->fs_ep_ptr = NULL; 981 f->flag_iscomplete = 0; 982 usb_fifo_free_buffer(f); 983 return (0); 984 } 985 986 static uint8_t 987 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 988 { 989 struct usb_mbuf *m; 990 991 USB_IF_DEQUEUE(&f->used_q, m); 992 993 if (m) { 994 *pindex = *((uint8_t *)(m->cur_data_ptr)); 995 996 USB_IF_ENQUEUE(&f->free_q, m); 997 998 return (0); /* success */ 999 } else { 1000 1001 *pindex = 0; /* fix compiler warning */ 1002 1003 f->flag_iscomplete = 0; 1004 } 1005 return (1); /* failure */ 1006 } 1007 1008 static void 1009 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1010 { 1011 struct usb_mbuf *m; 1012 1013 USB_IF_DEQUEUE(&f->free_q, m); 1014 1015 if (m == NULL) { 1016 /* can happen during close */ 1017 DPRINTF("out of buffers\n"); 1018 return; 1019 } 1020 USB_MBUF_RESET(m); 1021 1022 *((uint8_t *)(m->cur_data_ptr)) = index; 1023 1024 USB_IF_ENQUEUE(&f->used_q, m); 1025 1026 f->flag_iscomplete = 1; 1027 1028 usb_fifo_wakeup(f); 1029 } 1030 1031 static int 1032 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1033 { 1034 struct usb_device_request *req; 1035 struct usb_xfer *xfer; 1036 struct usb_fs_endpoint fs_ep; 1037 void *uaddr; /* userland pointer */ 1038 void *kaddr; 1039 usb_frlength_t offset; 1040 usb_frlength_t rem; 1041 usb_frcount_t n; 1042 uint32_t length; 1043 int error; 1044 uint8_t isread; 1045 1046 if (ep_index >= f->fs_ep_max) { 1047 return (EINVAL); 1048 } 1049 xfer = f->fs_xfer[ep_index]; 1050 if (xfer == NULL) { 1051 return (EINVAL); 1052 } 1053 mtx_lock(f->priv_mtx); 1054 if (usbd_transfer_pending(xfer)) { 1055 mtx_unlock(f->priv_mtx); 1056 return (EBUSY); /* should not happen */ 1057 } 1058 mtx_unlock(f->priv_mtx); 1059 1060 error = copyin(f->fs_ep_ptr + 1061 ep_index, &fs_ep, sizeof(fs_ep)); 1062 if (error) { 1063 return (error); 1064 } 1065 /* security checks */ 1066 1067 if (fs_ep.nFrames > xfer->max_frame_count) { 1068 xfer->error = USB_ERR_INVAL; 1069 goto complete; 1070 } 1071 if (fs_ep.nFrames == 0) { 1072 xfer->error = USB_ERR_INVAL; 1073 goto complete; 1074 } 1075 error = copyin(fs_ep.ppBuffer, 1076 &uaddr, sizeof(uaddr)); 1077 if (error) { 1078 return (error); 1079 } 1080 /* reset first frame */ 1081 usbd_xfer_set_frame_offset(xfer, 0, 0); 1082 1083 if (xfer->flags_int.control_xfr) { 1084 1085 req = xfer->frbuffers[0].buffer; 1086 1087 error = copyin(fs_ep.pLength, 1088 &length, sizeof(length)); 1089 if (error) { 1090 return (error); 1091 } 1092 if (length != sizeof(*req)) { 1093 xfer->error = USB_ERR_INVAL; 1094 goto complete; 1095 } 1096 if (length != 0) { 1097 error = copyin(uaddr, req, length); 1098 if (error) { 1099 return (error); 1100 } 1101 } 1102 if (ugen_check_request(f->udev, req)) { 1103 xfer->error = USB_ERR_INVAL; 1104 goto complete; 1105 } 1106 usbd_xfer_set_frame_len(xfer, 0, length); 1107 1108 /* Host mode only ! */ 1109 if ((req->bmRequestType & 1110 (UT_READ | UT_WRITE)) == UT_READ) { 1111 isread = 1; 1112 } else { 1113 isread = 0; 1114 } 1115 n = 1; 1116 offset = sizeof(*req); 1117 1118 } else { 1119 /* Device and Host mode */ 1120 if (USB_GET_DATA_ISREAD(xfer)) { 1121 isread = 1; 1122 } else { 1123 isread = 0; 1124 } 1125 n = 0; 1126 offset = 0; 1127 } 1128 1129 rem = usbd_xfer_max_len(xfer); 1130 xfer->nframes = fs_ep.nFrames; 1131 xfer->timeout = fs_ep.timeout; 1132 if (xfer->timeout > 65535) { 1133 xfer->timeout = 65535; 1134 } 1135 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1136 xfer->flags.short_xfer_ok = 1; 1137 else 1138 xfer->flags.short_xfer_ok = 0; 1139 1140 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1141 xfer->flags.short_frames_ok = 1; 1142 else 1143 xfer->flags.short_frames_ok = 0; 1144 1145 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1146 xfer->flags.force_short_xfer = 1; 1147 else 1148 xfer->flags.force_short_xfer = 0; 1149 1150 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1151 usbd_xfer_set_stall(xfer); 1152 else 1153 xfer->flags.stall_pipe = 0; 1154 1155 for (; n != xfer->nframes; n++) { 1156 1157 error = copyin(fs_ep.pLength + n, 1158 &length, sizeof(length)); 1159 if (error) { 1160 break; 1161 } 1162 usbd_xfer_set_frame_len(xfer, n, length); 1163 1164 if (length > rem) { 1165 xfer->error = USB_ERR_INVAL; 1166 goto complete; 1167 } 1168 rem -= length; 1169 1170 if (!isread) { 1171 1172 /* we need to know the source buffer */ 1173 error = copyin(fs_ep.ppBuffer + n, 1174 &uaddr, sizeof(uaddr)); 1175 if (error) { 1176 break; 1177 } 1178 if (xfer->flags_int.isochronous_xfr) { 1179 /* get kernel buffer address */ 1180 kaddr = xfer->frbuffers[0].buffer; 1181 kaddr = USB_ADD_BYTES(kaddr, offset); 1182 } else { 1183 /* set current frame offset */ 1184 usbd_xfer_set_frame_offset(xfer, offset, n); 1185 1186 /* get kernel buffer address */ 1187 kaddr = xfer->frbuffers[n].buffer; 1188 } 1189 1190 /* move data */ 1191 error = copyin(uaddr, kaddr, length); 1192 if (error) { 1193 break; 1194 } 1195 } 1196 offset += length; 1197 } 1198 return (error); 1199 1200 complete: 1201 mtx_lock(f->priv_mtx); 1202 ugen_fs_set_complete(f, ep_index); 1203 mtx_unlock(f->priv_mtx); 1204 return (0); 1205 } 1206 1207 static int 1208 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1209 { 1210 struct usb_device_request *req; 1211 struct usb_xfer *xfer; 1212 struct usb_fs_endpoint fs_ep; 1213 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1214 void *uaddr; /* userland ptr */ 1215 void *kaddr; 1216 usb_frlength_t offset; 1217 usb_frlength_t rem; 1218 usb_frcount_t n; 1219 uint32_t length; 1220 uint32_t temp; 1221 int error; 1222 uint8_t isread; 1223 1224 if (ep_index >= f->fs_ep_max) 1225 return (EINVAL); 1226 1227 xfer = f->fs_xfer[ep_index]; 1228 if (xfer == NULL) 1229 return (EINVAL); 1230 1231 mtx_lock(f->priv_mtx); 1232 if (usbd_transfer_pending(xfer)) { 1233 mtx_unlock(f->priv_mtx); 1234 return (EBUSY); /* should not happen */ 1235 } 1236 mtx_unlock(f->priv_mtx); 1237 1238 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1239 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1240 if (error) { 1241 return (error); 1242 } 1243 fs_ep.status = xfer->error; 1244 fs_ep.aFrames = xfer->aframes; 1245 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1246 if (xfer->error) { 1247 goto complete; 1248 } 1249 if (xfer->flags_int.control_xfr) { 1250 req = xfer->frbuffers[0].buffer; 1251 1252 /* Host mode only ! */ 1253 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1254 isread = 1; 1255 } else { 1256 isread = 0; 1257 } 1258 if (xfer->nframes == 0) 1259 n = 0; /* should never happen */ 1260 else 1261 n = 1; 1262 } else { 1263 /* Device and Host mode */ 1264 if (USB_GET_DATA_ISREAD(xfer)) { 1265 isread = 1; 1266 } else { 1267 isread = 0; 1268 } 1269 n = 0; 1270 } 1271 1272 /* Update lengths and copy out data */ 1273 1274 rem = usbd_xfer_max_len(xfer); 1275 offset = 0; 1276 1277 for (; n != xfer->nframes; n++) { 1278 1279 /* get initial length into "temp" */ 1280 error = copyin(fs_ep.pLength + n, 1281 &temp, sizeof(temp)); 1282 if (error) { 1283 return (error); 1284 } 1285 if (temp > rem) { 1286 /* the userland length has been corrupted */ 1287 DPRINTF("corrupt userland length " 1288 "%u > %u\n", temp, rem); 1289 fs_ep.status = USB_ERR_INVAL; 1290 goto complete; 1291 } 1292 rem -= temp; 1293 1294 /* get actual transfer length */ 1295 length = xfer->frlengths[n]; 1296 if (length > temp) { 1297 /* data overflow */ 1298 fs_ep.status = USB_ERR_INVAL; 1299 DPRINTF("data overflow %u > %u\n", 1300 length, temp); 1301 goto complete; 1302 } 1303 if (isread) { 1304 1305 /* we need to know the destination buffer */ 1306 error = copyin(fs_ep.ppBuffer + n, 1307 &uaddr, sizeof(uaddr)); 1308 if (error) { 1309 return (error); 1310 } 1311 if (xfer->flags_int.isochronous_xfr) { 1312 /* only one frame buffer */ 1313 kaddr = USB_ADD_BYTES( 1314 xfer->frbuffers[0].buffer, offset); 1315 } else { 1316 /* multiple frame buffers */ 1317 kaddr = xfer->frbuffers[n].buffer; 1318 } 1319 1320 /* move data */ 1321 error = copyout(kaddr, uaddr, length); 1322 if (error) { 1323 return (error); 1324 } 1325 } 1326 /* 1327 * Update offset according to initial length, which is 1328 * needed by isochronous transfers! 1329 */ 1330 offset += temp; 1331 1332 /* update length */ 1333 error = copyout(&length, 1334 fs_ep.pLength + n, sizeof(length)); 1335 if (error) { 1336 return (error); 1337 } 1338 } 1339 1340 complete: 1341 /* update "aFrames" */ 1342 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1343 sizeof(fs_ep.aFrames)); 1344 if (error) 1345 goto done; 1346 1347 /* update "isoc_time_complete" */ 1348 error = copyout(&fs_ep.isoc_time_complete, 1349 &fs_ep_uptr->isoc_time_complete, 1350 sizeof(fs_ep.isoc_time_complete)); 1351 if (error) 1352 goto done; 1353 /* update "status" */ 1354 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1355 sizeof(fs_ep.status)); 1356 done: 1357 return (error); 1358 } 1359 1360 static uint8_t 1361 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1362 { 1363 struct usb_fifo *f_rx; 1364 struct usb_fifo *f_tx; 1365 1366 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1367 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1368 1369 if ((fflags & FREAD) && f_rx && 1370 (f_rx->xfer[0] || f_rx->xfer[1])) { 1371 return (1); /* RX FIFO in use */ 1372 } 1373 if ((fflags & FWRITE) && f_tx && 1374 (f_tx->xfer[0] || f_tx->xfer[1])) { 1375 return (1); /* TX FIFO in use */ 1376 } 1377 return (0); /* not in use */ 1378 } 1379 1380 static int 1381 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1382 { 1383 struct usb_config usb_config[1]; 1384 struct usb_device_request req; 1385 union { 1386 struct usb_fs_complete *pcomp; 1387 struct usb_fs_start *pstart; 1388 struct usb_fs_stop *pstop; 1389 struct usb_fs_open *popen; 1390 struct usb_fs_close *pclose; 1391 struct usb_fs_clear_stall_sync *pstall; 1392 void *addr; 1393 } u; 1394 struct usb_endpoint *ep; 1395 struct usb_endpoint_descriptor *ed; 1396 int error = 0; 1397 uint8_t iface_index; 1398 uint8_t isread; 1399 uint8_t ep_index; 1400 1401 u.addr = addr; 1402 1403 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1404 1405 switch (cmd) { 1406 case USB_FS_COMPLETE: 1407 mtx_lock(f->priv_mtx); 1408 error = ugen_fs_get_complete(f, &ep_index); 1409 mtx_unlock(f->priv_mtx); 1410 1411 if (error) { 1412 error = EBUSY; 1413 break; 1414 } 1415 u.pcomp->ep_index = ep_index; 1416 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1417 break; 1418 1419 case USB_FS_START: 1420 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1421 if (error) { 1422 break; 1423 } 1424 mtx_lock(f->priv_mtx); 1425 usbd_transfer_start(f->fs_xfer[u.pstart->ep_index]); 1426 mtx_unlock(f->priv_mtx); 1427 break; 1428 1429 case USB_FS_STOP: 1430 if (u.pstop->ep_index >= f->fs_ep_max) { 1431 error = EINVAL; 1432 break; 1433 } 1434 mtx_lock(f->priv_mtx); 1435 usbd_transfer_stop(f->fs_xfer[u.pstop->ep_index]); 1436 mtx_unlock(f->priv_mtx); 1437 break; 1438 1439 case USB_FS_OPEN: 1440 if (u.popen->ep_index >= f->fs_ep_max) { 1441 error = EINVAL; 1442 break; 1443 } 1444 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1445 error = EBUSY; 1446 break; 1447 } 1448 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1449 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1450 } 1451 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1452 u.popen->max_frames = USB_FS_MAX_FRAMES; 1453 break; 1454 } 1455 if (u.popen->max_frames == 0) { 1456 error = EINVAL; 1457 break; 1458 } 1459 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1460 if (ep == NULL) { 1461 error = EINVAL; 1462 break; 1463 } 1464 ed = ep->edesc; 1465 if (ed == NULL) { 1466 error = ENXIO; 1467 break; 1468 } 1469 iface_index = ep->iface_index; 1470 1471 bzero(usb_config, sizeof(usb_config)); 1472 1473 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1474 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1475 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1476 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1477 usb_config[0].flags.proxy_buffer = 1; 1478 usb_config[0].callback = &ugen_ctrl_fs_callback; 1479 usb_config[0].timeout = 0; /* no timeout */ 1480 usb_config[0].frames = u.popen->max_frames; 1481 usb_config[0].bufsize = u.popen->max_bufsize; 1482 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1483 1484 if (usb_config[0].type == UE_CONTROL) { 1485 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1486 error = EINVAL; 1487 break; 1488 } 1489 } else { 1490 1491 isread = ((usb_config[0].endpoint & 1492 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1493 1494 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1495 isread = !isread; 1496 } 1497 /* check permissions */ 1498 if (isread) { 1499 if (!(fflags & FREAD)) { 1500 error = EPERM; 1501 break; 1502 } 1503 } else { 1504 if (!(fflags & FWRITE)) { 1505 error = EPERM; 1506 break; 1507 } 1508 } 1509 } 1510 error = usbd_transfer_setup(f->udev, &iface_index, 1511 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1512 f, f->priv_mtx); 1513 if (error == 0) { 1514 /* update maximums */ 1515 u.popen->max_packet_length = 1516 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1517 u.popen->max_bufsize = 1518 f->fs_xfer[u.popen->ep_index]->max_data_length; 1519 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1520 ((uint8_t *)0) + u.popen->ep_index; 1521 } else { 1522 error = ENOMEM; 1523 } 1524 break; 1525 1526 case USB_FS_CLOSE: 1527 if (u.pclose->ep_index >= f->fs_ep_max) { 1528 error = EINVAL; 1529 break; 1530 } 1531 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1532 error = EINVAL; 1533 break; 1534 } 1535 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1536 break; 1537 1538 case USB_FS_CLEAR_STALL_SYNC: 1539 if (u.pstall->ep_index >= f->fs_ep_max) { 1540 error = EINVAL; 1541 break; 1542 } 1543 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1544 error = EINVAL; 1545 break; 1546 } 1547 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1548 error = EINVAL; 1549 break; 1550 } 1551 mtx_lock(f->priv_mtx); 1552 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1553 mtx_unlock(f->priv_mtx); 1554 1555 if (error) { 1556 return (EBUSY); 1557 } 1558 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1559 1560 /* setup a clear-stall packet */ 1561 req.bmRequestType = UT_WRITE_ENDPOINT; 1562 req.bRequest = UR_CLEAR_FEATURE; 1563 USETW(req.wValue, UF_ENDPOINT_HALT); 1564 req.wIndex[0] = ep->edesc->bEndpointAddress; 1565 req.wIndex[1] = 0; 1566 USETW(req.wLength, 0); 1567 1568 error = usbd_do_request(f->udev, NULL, &req, NULL); 1569 if (error == 0) { 1570 usbd_clear_data_toggle(f->udev, ep); 1571 } else { 1572 error = ENXIO; 1573 } 1574 break; 1575 1576 default: 1577 error = ENOIOCTL; 1578 break; 1579 } 1580 1581 DPRINTFN(6, "error=%d\n", error); 1582 1583 return (error); 1584 } 1585 1586 static int 1587 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1588 { 1589 uint8_t t; 1590 1591 if (*(int *)addr) 1592 t = 1; 1593 else 1594 t = 0; 1595 1596 if (f->flag_short == t) { 1597 /* same value like before - accept */ 1598 return (0); 1599 } 1600 if (f->xfer[0] || f->xfer[1]) { 1601 /* cannot change this during transfer */ 1602 return (EBUSY); 1603 } 1604 f->flag_short = t; 1605 return (0); 1606 } 1607 1608 static int 1609 ugen_set_timeout(struct usb_fifo *f, void *addr) 1610 { 1611 f->timeout = *(int *)addr; 1612 if (f->timeout > 65535) { 1613 /* limit user input */ 1614 f->timeout = 65535; 1615 } 1616 return (0); 1617 } 1618 1619 static int 1620 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1621 { 1622 if (f->xfer[0]) { 1623 *(int *)addr = f->xfer[0]->max_frame_size; 1624 } else { 1625 return (EINVAL); 1626 } 1627 return (0); 1628 } 1629 1630 static int 1631 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1632 { 1633 usb_frlength_t t; 1634 1635 if (*(int *)addr < 0) 1636 t = 0; /* use "wMaxPacketSize" */ 1637 else if (*(int *)addr < (256 * 1024)) 1638 t = *(int *)addr; 1639 else 1640 t = 256 * 1024; 1641 1642 if (f->bufsize == t) { 1643 /* same value like before - accept */ 1644 return (0); 1645 } 1646 if (f->xfer[0] || f->xfer[1]) { 1647 /* cannot change this during transfer */ 1648 return (EBUSY); 1649 } 1650 f->bufsize = t; 1651 return (0); 1652 } 1653 1654 static int 1655 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1656 { 1657 *(int *)addr = f->bufsize; 1658 return (0); 1659 } 1660 1661 static int 1662 ugen_get_iface_desc(struct usb_fifo *f, 1663 struct usb_interface_descriptor *idesc) 1664 { 1665 struct usb_interface *iface; 1666 1667 iface = usbd_get_iface(f->udev, f->iface_index); 1668 if (iface && iface->idesc) { 1669 *idesc = *(iface->idesc); 1670 } else { 1671 return (EIO); 1672 } 1673 return (0); 1674 } 1675 1676 static int 1677 ugen_get_endpoint_desc(struct usb_fifo *f, 1678 struct usb_endpoint_descriptor *ed) 1679 { 1680 struct usb_endpoint *ep; 1681 1682 ep = usb_fifo_softc(f); 1683 1684 if (ep && ep->edesc) { 1685 *ed = *ep->edesc; 1686 } else { 1687 return (EINVAL); 1688 } 1689 return (0); 1690 } 1691 1692 static int 1693 ugen_set_power_mode(struct usb_fifo *f, int mode) 1694 { 1695 struct usb_device *udev = f->udev; 1696 int err; 1697 uint8_t old_mode; 1698 1699 if ((udev == NULL) || 1700 (udev->parent_hub == NULL)) { 1701 return (EINVAL); 1702 } 1703 err = priv_check(curthread, PRIV_DRIVER); 1704 if (err) 1705 return (err); 1706 1707 /* get old power mode */ 1708 old_mode = udev->power_mode; 1709 1710 /* if no change, then just return */ 1711 if (old_mode == mode) 1712 return (0); 1713 1714 switch (mode) { 1715 case USB_POWER_MODE_OFF: 1716 /* get the device unconfigured */ 1717 err = ugen_set_config(f, USB_UNCONFIG_INDEX); 1718 if (err) { 1719 DPRINTFN(0, "Could not unconfigure " 1720 "device (ignored)\n"); 1721 } 1722 1723 /* clear port enable */ 1724 err = usbd_req_clear_port_feature(udev->parent_hub, 1725 NULL, udev->port_no, UHF_PORT_ENABLE); 1726 break; 1727 1728 case USB_POWER_MODE_ON: 1729 case USB_POWER_MODE_SAVE: 1730 break; 1731 1732 case USB_POWER_MODE_RESUME: 1733 #if USB_HAVE_POWERD 1734 /* let USB-powerd handle resume */ 1735 USB_BUS_LOCK(udev->bus); 1736 udev->pwr_save.write_refs++; 1737 udev->pwr_save.last_xfer_time = ticks; 1738 USB_BUS_UNLOCK(udev->bus); 1739 1740 /* set new power mode */ 1741 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1742 1743 /* wait for resume to complete */ 1744 usb_pause_mtx(NULL, hz / 4); 1745 1746 /* clear write reference */ 1747 USB_BUS_LOCK(udev->bus); 1748 udev->pwr_save.write_refs--; 1749 USB_BUS_UNLOCK(udev->bus); 1750 #endif 1751 mode = USB_POWER_MODE_SAVE; 1752 break; 1753 1754 case USB_POWER_MODE_SUSPEND: 1755 #if USB_HAVE_POWERD 1756 /* let USB-powerd handle suspend */ 1757 USB_BUS_LOCK(udev->bus); 1758 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1759 USB_BUS_UNLOCK(udev->bus); 1760 #endif 1761 mode = USB_POWER_MODE_SAVE; 1762 break; 1763 1764 default: 1765 return (EINVAL); 1766 } 1767 1768 if (err) 1769 return (ENXIO); /* I/O failure */ 1770 1771 /* if we are powered off we need to re-enumerate first */ 1772 if (old_mode == USB_POWER_MODE_OFF) { 1773 if (udev->flags.usb_mode == USB_MODE_HOST) { 1774 if (udev->re_enumerate_wait == 0) 1775 udev->re_enumerate_wait = 1; 1776 } 1777 /* set power mode will wake up the explore thread */ 1778 } 1779 1780 /* set new power mode */ 1781 usbd_set_power_mode(udev, mode); 1782 1783 return (0); /* success */ 1784 } 1785 1786 static int 1787 ugen_get_power_mode(struct usb_fifo *f) 1788 { 1789 struct usb_device *udev = f->udev; 1790 1791 if (udev == NULL) 1792 return (USB_POWER_MODE_ON); 1793 1794 return (udev->power_mode); 1795 } 1796 1797 static int 1798 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1799 uint8_t set, uint16_t feature) 1800 { 1801 struct usb_device *udev = f->udev; 1802 struct usb_hub *hub; 1803 int err; 1804 1805 err = priv_check(curthread, PRIV_DRIVER); 1806 if (err) { 1807 return (err); 1808 } 1809 if (port_no == 0) { 1810 return (EINVAL); 1811 } 1812 if ((udev == NULL) || 1813 (udev->hub == NULL)) { 1814 return (EINVAL); 1815 } 1816 hub = udev->hub; 1817 1818 if (port_no > hub->nports) { 1819 return (EINVAL); 1820 } 1821 if (set) 1822 err = usbd_req_set_port_feature(udev, 1823 NULL, port_no, feature); 1824 else 1825 err = usbd_req_clear_port_feature(udev, 1826 NULL, port_no, feature); 1827 1828 if (err) 1829 return (ENXIO); /* failure */ 1830 1831 return (0); /* success */ 1832 } 1833 1834 static int 1835 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1836 { 1837 struct usb_fifo *f_rx; 1838 struct usb_fifo *f_tx; 1839 int error = 0; 1840 1841 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1842 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1843 1844 switch (cmd) { 1845 case USB_SET_RX_SHORT_XFER: 1846 if (fflags & FREAD) { 1847 error = ugen_set_short_xfer(f_rx, addr); 1848 } else { 1849 error = EINVAL; 1850 } 1851 break; 1852 1853 case USB_SET_TX_FORCE_SHORT: 1854 if (fflags & FWRITE) { 1855 error = ugen_set_short_xfer(f_tx, addr); 1856 } else { 1857 error = EINVAL; 1858 } 1859 break; 1860 1861 case USB_SET_RX_TIMEOUT: 1862 if (fflags & FREAD) { 1863 error = ugen_set_timeout(f_rx, addr); 1864 } else { 1865 error = EINVAL; 1866 } 1867 break; 1868 1869 case USB_SET_TX_TIMEOUT: 1870 if (fflags & FWRITE) { 1871 error = ugen_set_timeout(f_tx, addr); 1872 } else { 1873 error = EINVAL; 1874 } 1875 break; 1876 1877 case USB_GET_RX_FRAME_SIZE: 1878 if (fflags & FREAD) { 1879 error = ugen_get_frame_size(f_rx, addr); 1880 } else { 1881 error = EINVAL; 1882 } 1883 break; 1884 1885 case USB_GET_TX_FRAME_SIZE: 1886 if (fflags & FWRITE) { 1887 error = ugen_get_frame_size(f_tx, addr); 1888 } else { 1889 error = EINVAL; 1890 } 1891 break; 1892 1893 case USB_SET_RX_BUFFER_SIZE: 1894 if (fflags & FREAD) { 1895 error = ugen_set_buffer_size(f_rx, addr); 1896 } else { 1897 error = EINVAL; 1898 } 1899 break; 1900 1901 case USB_SET_TX_BUFFER_SIZE: 1902 if (fflags & FWRITE) { 1903 error = ugen_set_buffer_size(f_tx, addr); 1904 } else { 1905 error = EINVAL; 1906 } 1907 break; 1908 1909 case USB_GET_RX_BUFFER_SIZE: 1910 if (fflags & FREAD) { 1911 error = ugen_get_buffer_size(f_rx, addr); 1912 } else { 1913 error = EINVAL; 1914 } 1915 break; 1916 1917 case USB_GET_TX_BUFFER_SIZE: 1918 if (fflags & FWRITE) { 1919 error = ugen_get_buffer_size(f_tx, addr); 1920 } else { 1921 error = EINVAL; 1922 } 1923 break; 1924 1925 case USB_GET_RX_INTERFACE_DESC: 1926 if (fflags & FREAD) { 1927 error = ugen_get_iface_desc(f_rx, addr); 1928 } else { 1929 error = EINVAL; 1930 } 1931 break; 1932 1933 case USB_GET_TX_INTERFACE_DESC: 1934 if (fflags & FWRITE) { 1935 error = ugen_get_iface_desc(f_tx, addr); 1936 } else { 1937 error = EINVAL; 1938 } 1939 break; 1940 1941 case USB_GET_RX_ENDPOINT_DESC: 1942 if (fflags & FREAD) { 1943 error = ugen_get_endpoint_desc(f_rx, addr); 1944 } else { 1945 error = EINVAL; 1946 } 1947 break; 1948 1949 case USB_GET_TX_ENDPOINT_DESC: 1950 if (fflags & FWRITE) { 1951 error = ugen_get_endpoint_desc(f_tx, addr); 1952 } else { 1953 error = EINVAL; 1954 } 1955 break; 1956 1957 case USB_SET_RX_STALL_FLAG: 1958 if ((fflags & FREAD) && (*(int *)addr)) { 1959 f_rx->flag_stall = 1; 1960 } 1961 break; 1962 1963 case USB_SET_TX_STALL_FLAG: 1964 if ((fflags & FWRITE) && (*(int *)addr)) { 1965 f_tx->flag_stall = 1; 1966 } 1967 break; 1968 1969 default: 1970 error = ENOIOCTL; 1971 break; 1972 } 1973 return (error); 1974 } 1975 1976 static int 1977 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1978 { 1979 union { 1980 struct usb_interface_descriptor *idesc; 1981 struct usb_alt_interface *ai; 1982 struct usb_device_descriptor *ddesc; 1983 struct usb_config_descriptor *cdesc; 1984 struct usb_device_stats *stat; 1985 struct usb_fs_init *pinit; 1986 struct usb_fs_uninit *puninit; 1987 uint32_t *ptime; 1988 void *addr; 1989 int *pint; 1990 } u; 1991 struct usb_device_descriptor *dtemp; 1992 struct usb_config_descriptor *ctemp; 1993 struct usb_interface *iface; 1994 int error = 0; 1995 uint8_t n; 1996 1997 u.addr = addr; 1998 1999 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2000 2001 switch (cmd) { 2002 case USB_DISCOVER: 2003 usb_needs_explore_all(); 2004 break; 2005 2006 case USB_SETDEBUG: 2007 if (!(fflags & FWRITE)) { 2008 error = EPERM; 2009 break; 2010 } 2011 usb_debug = *(int *)addr; 2012 break; 2013 2014 case USB_GET_CONFIG: 2015 *(int *)addr = f->udev->curr_config_index; 2016 break; 2017 2018 case USB_SET_CONFIG: 2019 if (!(fflags & FWRITE)) { 2020 error = EPERM; 2021 break; 2022 } 2023 error = ugen_set_config(f, *(int *)addr); 2024 break; 2025 2026 case USB_GET_ALTINTERFACE: 2027 iface = usbd_get_iface(f->udev, 2028 u.ai->uai_interface_index); 2029 if (iface && iface->idesc) { 2030 u.ai->uai_alt_index = iface->alt_index; 2031 } else { 2032 error = EINVAL; 2033 } 2034 break; 2035 2036 case USB_SET_ALTINTERFACE: 2037 if (!(fflags & FWRITE)) { 2038 error = EPERM; 2039 break; 2040 } 2041 error = ugen_set_interface(f, 2042 u.ai->uai_interface_index, u.ai->uai_alt_index); 2043 break; 2044 2045 case USB_GET_DEVICE_DESC: 2046 dtemp = usbd_get_device_descriptor(f->udev); 2047 if (!dtemp) { 2048 error = EIO; 2049 break; 2050 } 2051 *u.ddesc = *dtemp; 2052 break; 2053 2054 case USB_GET_CONFIG_DESC: 2055 ctemp = usbd_get_config_descriptor(f->udev); 2056 if (!ctemp) { 2057 error = EIO; 2058 break; 2059 } 2060 *u.cdesc = *ctemp; 2061 break; 2062 2063 case USB_GET_FULL_DESC: 2064 error = ugen_get_cdesc(f, addr); 2065 break; 2066 2067 case USB_GET_STRING_DESC: 2068 error = ugen_get_sdesc(f, addr); 2069 break; 2070 2071 case USB_GET_IFACE_DRIVER: 2072 error = ugen_get_iface_driver(f, addr); 2073 break; 2074 2075 case USB_REQUEST: 2076 case USB_DO_REQUEST: 2077 if (!(fflags & FWRITE)) { 2078 error = EPERM; 2079 break; 2080 } 2081 error = ugen_do_request(f, addr); 2082 break; 2083 2084 case USB_DEVICEINFO: 2085 case USB_GET_DEVICEINFO: 2086 error = usb_gen_fill_deviceinfo(f, addr); 2087 break; 2088 2089 case USB_DEVICESTATS: 2090 for (n = 0; n != 4; n++) { 2091 2092 u.stat->uds_requests_fail[n] = 2093 f->udev->bus->stats_err.uds_requests[n]; 2094 2095 u.stat->uds_requests_ok[n] = 2096 f->udev->bus->stats_ok.uds_requests[n]; 2097 } 2098 break; 2099 2100 case USB_DEVICEENUMERATE: 2101 error = ugen_re_enumerate(f); 2102 break; 2103 2104 case USB_GET_PLUGTIME: 2105 *u.ptime = f->udev->plugtime; 2106 break; 2107 2108 case USB_CLAIM_INTERFACE: 2109 case USB_RELEASE_INTERFACE: 2110 /* TODO */ 2111 break; 2112 2113 case USB_IFACE_DRIVER_ACTIVE: 2114 2115 n = *u.pint & 0xFF; 2116 2117 iface = usbd_get_iface(f->udev, n); 2118 2119 if (iface && iface->subdev) 2120 error = 0; 2121 else 2122 error = ENXIO; 2123 break; 2124 2125 case USB_IFACE_DRIVER_DETACH: 2126 2127 error = priv_check(curthread, PRIV_DRIVER); 2128 2129 if (error) 2130 break; 2131 2132 n = *u.pint & 0xFF; 2133 2134 if (n == USB_IFACE_INDEX_ANY) { 2135 error = EINVAL; 2136 break; 2137 } 2138 2139 usb_detach_device(f->udev, n, 0); 2140 break; 2141 2142 case USB_SET_POWER_MODE: 2143 error = ugen_set_power_mode(f, *u.pint); 2144 break; 2145 2146 case USB_GET_POWER_MODE: 2147 *u.pint = ugen_get_power_mode(f); 2148 break; 2149 2150 case USB_SET_PORT_ENABLE: 2151 error = ugen_do_port_feature(f, 2152 *u.pint, 1, UHF_PORT_ENABLE); 2153 break; 2154 2155 case USB_SET_PORT_DISABLE: 2156 error = ugen_do_port_feature(f, 2157 *u.pint, 0, UHF_PORT_ENABLE); 2158 break; 2159 2160 case USB_FS_INIT: 2161 /* verify input parameters */ 2162 if (u.pinit->pEndpoints == NULL) { 2163 error = EINVAL; 2164 break; 2165 } 2166 if (u.pinit->ep_index_max > 127) { 2167 error = EINVAL; 2168 break; 2169 } 2170 if (u.pinit->ep_index_max == 0) { 2171 error = EINVAL; 2172 break; 2173 } 2174 if (f->fs_xfer != NULL) { 2175 error = EBUSY; 2176 break; 2177 } 2178 if (f->dev_ep_index != 0) { 2179 error = EINVAL; 2180 break; 2181 } 2182 if (ugen_fifo_in_use(f, fflags)) { 2183 error = EBUSY; 2184 break; 2185 } 2186 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2187 if (error) { 2188 break; 2189 } 2190 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2191 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2192 if (f->fs_xfer == NULL) { 2193 usb_fifo_free_buffer(f); 2194 error = ENOMEM; 2195 break; 2196 } 2197 f->fs_ep_max = u.pinit->ep_index_max; 2198 f->fs_ep_ptr = u.pinit->pEndpoints; 2199 break; 2200 2201 case USB_FS_UNINIT: 2202 if (u.puninit->dummy != 0) { 2203 error = EINVAL; 2204 break; 2205 } 2206 error = ugen_fs_uninit(f); 2207 break; 2208 2209 default: 2210 mtx_lock(f->priv_mtx); 2211 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2212 mtx_unlock(f->priv_mtx); 2213 break; 2214 } 2215 DPRINTFN(6, "error=%d\n", error); 2216 return (error); 2217 } 2218 2219 static void 2220 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2221 { 2222 ; /* workaround for a bug in "indent" */ 2223 2224 DPRINTF("st=%u alen=%u aframes=%u\n", 2225 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2226 2227 switch (USB_GET_STATE(xfer)) { 2228 case USB_ST_SETUP: 2229 usbd_transfer_submit(xfer); 2230 break; 2231 default: 2232 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2233 break; 2234 } 2235 } 2236 #endif /* USB_HAVE_UGEN */ 2237