1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/stdint.h> 28 #include <sys/stddef.h> 29 #include <sys/param.h> 30 #include <sys/queue.h> 31 #include <sys/types.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/bus.h> 35 #include <sys/module.h> 36 #include <sys/lock.h> 37 #include <sys/mutex.h> 38 #include <sys/condvar.h> 39 #include <sys/sysctl.h> 40 #include <sys/sx.h> 41 #include <sys/unistd.h> 42 #include <sys/callout.h> 43 #include <sys/malloc.h> 44 #include <sys/priv.h> 45 #include <sys/conf.h> 46 #include <sys/fcntl.h> 47 48 #include <dev/usb/usb.h> 49 #include <dev/usb/usb_ioctl.h> 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdi_util.h> 52 53 #define USB_DEBUG_VAR ugen_debug 54 55 #include <dev/usb/usb_core.h> 56 #include <dev/usb/usb_dev.h> 57 #include <dev/usb/usb_mbuf.h> 58 #include <dev/usb/usb_process.h> 59 #include <dev/usb/usb_device.h> 60 #include <dev/usb/usb_debug.h> 61 #include <dev/usb/usb_request.h> 62 #include <dev/usb/usb_busdma.h> 63 #include <dev/usb/usb_util.h> 64 #include <dev/usb/usb_hub.h> 65 #include <dev/usb/usb_generic.h> 66 #include <dev/usb/usb_transfer.h> 67 68 #include <dev/usb/usb_controller.h> 69 #include <dev/usb/usb_bus.h> 70 71 #if USB_HAVE_UGEN 72 73 /* defines */ 74 75 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 76 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 77 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 78 79 /* function prototypes */ 80 81 static usb_callback_t ugen_read_clear_stall_callback; 82 static usb_callback_t ugen_write_clear_stall_callback; 83 static usb_callback_t ugen_ctrl_read_callback; 84 static usb_callback_t ugen_ctrl_write_callback; 85 static usb_callback_t ugen_isoc_read_callback; 86 static usb_callback_t ugen_isoc_write_callback; 87 static usb_callback_t ugen_ctrl_fs_callback; 88 89 static usb_fifo_open_t ugen_open; 90 static usb_fifo_close_t ugen_close; 91 static usb_fifo_ioctl_t ugen_ioctl; 92 static usb_fifo_ioctl_t ugen_ioctl_post; 93 static usb_fifo_cmd_t ugen_start_read; 94 static usb_fifo_cmd_t ugen_start_write; 95 static usb_fifo_cmd_t ugen_stop_io; 96 97 static int ugen_transfer_setup(struct usb_fifo *, 98 const struct usb_config *, uint8_t); 99 static int ugen_open_pipe_write(struct usb_fifo *); 100 static int ugen_open_pipe_read(struct usb_fifo *); 101 static int ugen_set_config(struct usb_fifo *, uint8_t); 102 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 103 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 104 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 105 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 106 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 107 struct usb_device_info *); 108 static int ugen_re_enumerate(struct usb_fifo *); 109 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 110 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 111 static int ugen_fs_uninit(struct usb_fifo *f); 112 113 /* structures */ 114 115 struct usb_fifo_methods usb_ugen_methods = { 116 .f_open = &ugen_open, 117 .f_close = &ugen_close, 118 .f_ioctl = &ugen_ioctl, 119 .f_ioctl_post = &ugen_ioctl_post, 120 .f_start_read = &ugen_start_read, 121 .f_stop_read = &ugen_stop_io, 122 .f_start_write = &ugen_start_write, 123 .f_stop_write = &ugen_stop_io, 124 }; 125 126 #ifdef USB_DEBUG 127 static int ugen_debug = 0; 128 129 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 130 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW | CTLFLAG_TUN, &ugen_debug, 131 0, "Debug level"); 132 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug); 133 #endif 134 135 136 /* prototypes */ 137 138 static int 139 ugen_transfer_setup(struct usb_fifo *f, 140 const struct usb_config *setup, uint8_t n_setup) 141 { 142 struct usb_endpoint *ep = usb_fifo_softc(f); 143 struct usb_device *udev = f->udev; 144 uint8_t iface_index = ep->iface_index; 145 int error; 146 147 mtx_unlock(f->priv_mtx); 148 149 /* 150 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 151 * exiting the mutex and checking things 152 */ 153 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 154 setup, n_setup, f, f->priv_mtx); 155 if (error == 0) { 156 157 if (f->xfer[0]->nframes == 1) { 158 error = usb_fifo_alloc_buffer(f, 159 f->xfer[0]->max_data_length, 2); 160 } else { 161 error = usb_fifo_alloc_buffer(f, 162 f->xfer[0]->max_frame_size, 163 2 * f->xfer[0]->nframes); 164 } 165 if (error) { 166 usbd_transfer_unsetup(f->xfer, n_setup); 167 } 168 } 169 mtx_lock(f->priv_mtx); 170 171 return (error); 172 } 173 174 static int 175 ugen_open(struct usb_fifo *f, int fflags) 176 { 177 struct usb_endpoint *ep = usb_fifo_softc(f); 178 struct usb_endpoint_descriptor *ed = ep->edesc; 179 uint8_t type; 180 181 DPRINTFN(6, "flag=0x%x\n", fflags); 182 183 mtx_lock(f->priv_mtx); 184 switch (usbd_get_speed(f->udev)) { 185 case USB_SPEED_LOW: 186 case USB_SPEED_FULL: 187 f->nframes = UGEN_HW_FRAMES; 188 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 189 break; 190 default: 191 f->nframes = UGEN_HW_FRAMES * 8; 192 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 193 break; 194 } 195 196 type = ed->bmAttributes & UE_XFERTYPE; 197 if (type == UE_INTERRUPT) { 198 f->bufsize = 0; /* use "wMaxPacketSize" */ 199 } 200 f->timeout = USB_NO_TIMEOUT; 201 f->flag_short = 0; 202 f->fifo_zlp = 0; 203 mtx_unlock(f->priv_mtx); 204 205 return (0); 206 } 207 208 static void 209 ugen_close(struct usb_fifo *f, int fflags) 210 { 211 DPRINTFN(6, "flag=0x%x\n", fflags); 212 213 /* cleanup */ 214 215 mtx_lock(f->priv_mtx); 216 usbd_transfer_stop(f->xfer[0]); 217 usbd_transfer_stop(f->xfer[1]); 218 mtx_unlock(f->priv_mtx); 219 220 usbd_transfer_unsetup(f->xfer, 2); 221 usb_fifo_free_buffer(f); 222 223 if (ugen_fs_uninit(f)) { 224 /* ignore any errors - we are closing */ 225 DPRINTFN(6, "no FIFOs\n"); 226 } 227 } 228 229 static int 230 ugen_open_pipe_write(struct usb_fifo *f) 231 { 232 struct usb_config usb_config[2]; 233 struct usb_endpoint *ep = usb_fifo_softc(f); 234 struct usb_endpoint_descriptor *ed = ep->edesc; 235 236 mtx_assert(f->priv_mtx, MA_OWNED); 237 238 if (f->xfer[0] || f->xfer[1]) { 239 /* transfers are already opened */ 240 return (0); 241 } 242 memset(usb_config, 0, sizeof(usb_config)); 243 244 usb_config[1].type = UE_CONTROL; 245 usb_config[1].endpoint = 0; 246 usb_config[1].direction = UE_DIR_ANY; 247 usb_config[1].timeout = 1000; /* 1 second */ 248 usb_config[1].interval = 50;/* 50 milliseconds */ 249 usb_config[1].bufsize = sizeof(struct usb_device_request); 250 usb_config[1].callback = &ugen_write_clear_stall_callback; 251 usb_config[1].usb_mode = USB_MODE_HOST; 252 253 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 254 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 255 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 256 usb_config[0].direction = UE_DIR_TX; 257 usb_config[0].interval = USB_DEFAULT_INTERVAL; 258 usb_config[0].flags.proxy_buffer = 1; 259 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 260 261 switch (ed->bmAttributes & UE_XFERTYPE) { 262 case UE_INTERRUPT: 263 case UE_BULK: 264 if (f->flag_short) { 265 usb_config[0].flags.force_short_xfer = 1; 266 } 267 usb_config[0].callback = &ugen_ctrl_write_callback; 268 usb_config[0].timeout = f->timeout; 269 usb_config[0].frames = 1; 270 usb_config[0].bufsize = f->bufsize; 271 if (ugen_transfer_setup(f, usb_config, 2)) { 272 return (EIO); 273 } 274 /* first transfer does not clear stall */ 275 f->flag_stall = 0; 276 break; 277 278 case UE_ISOCHRONOUS: 279 usb_config[0].flags.short_xfer_ok = 1; 280 usb_config[0].bufsize = 0; /* use default */ 281 usb_config[0].frames = f->nframes; 282 usb_config[0].callback = &ugen_isoc_write_callback; 283 usb_config[0].timeout = 0; 284 285 /* clone configuration */ 286 usb_config[1] = usb_config[0]; 287 288 if (ugen_transfer_setup(f, usb_config, 2)) { 289 return (EIO); 290 } 291 break; 292 default: 293 return (EINVAL); 294 } 295 return (0); 296 } 297 298 static int 299 ugen_open_pipe_read(struct usb_fifo *f) 300 { 301 struct usb_config usb_config[2]; 302 struct usb_endpoint *ep = usb_fifo_softc(f); 303 struct usb_endpoint_descriptor *ed = ep->edesc; 304 305 mtx_assert(f->priv_mtx, MA_OWNED); 306 307 if (f->xfer[0] || f->xfer[1]) { 308 /* transfers are already opened */ 309 return (0); 310 } 311 memset(usb_config, 0, sizeof(usb_config)); 312 313 usb_config[1].type = UE_CONTROL; 314 usb_config[1].endpoint = 0; 315 usb_config[1].direction = UE_DIR_ANY; 316 usb_config[1].timeout = 1000; /* 1 second */ 317 usb_config[1].interval = 50;/* 50 milliseconds */ 318 usb_config[1].bufsize = sizeof(struct usb_device_request); 319 usb_config[1].callback = &ugen_read_clear_stall_callback; 320 usb_config[1].usb_mode = USB_MODE_HOST; 321 322 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 323 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 324 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 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 DPRINTFN(6, "device mode\n"); 957 return (ENOTTY); 958 } 959 if (udev->parent_hub == NULL) { 960 /* the root HUB cannot be re-enumerated */ 961 DPRINTFN(6, "cannot reset root HUB\n"); 962 return (EINVAL); 963 } 964 /* make sure all FIFO's are gone */ 965 /* else there can be a deadlock */ 966 if (ugen_fs_uninit(f)) { 967 /* ignore any errors */ 968 DPRINTFN(6, "no FIFOs\n"); 969 } 970 /* start re-enumeration of device */ 971 usbd_start_re_enumerate(udev); 972 return (0); 973 } 974 975 int 976 ugen_fs_uninit(struct usb_fifo *f) 977 { 978 if (f->fs_xfer == NULL) { 979 return (EINVAL); 980 } 981 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 982 free(f->fs_xfer, M_USB); 983 f->fs_xfer = NULL; 984 f->fs_ep_max = 0; 985 f->fs_ep_ptr = NULL; 986 f->flag_iscomplete = 0; 987 usb_fifo_free_buffer(f); 988 return (0); 989 } 990 991 static uint8_t 992 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 993 { 994 struct usb_mbuf *m; 995 996 USB_IF_DEQUEUE(&f->used_q, m); 997 998 if (m) { 999 *pindex = *((uint8_t *)(m->cur_data_ptr)); 1000 1001 USB_IF_ENQUEUE(&f->free_q, m); 1002 1003 return (0); /* success */ 1004 } else { 1005 1006 *pindex = 0; /* fix compiler warning */ 1007 1008 f->flag_iscomplete = 0; 1009 } 1010 return (1); /* failure */ 1011 } 1012 1013 static void 1014 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1015 { 1016 struct usb_mbuf *m; 1017 1018 USB_IF_DEQUEUE(&f->free_q, m); 1019 1020 if (m == NULL) { 1021 /* can happen during close */ 1022 DPRINTF("out of buffers\n"); 1023 return; 1024 } 1025 USB_MBUF_RESET(m); 1026 1027 *((uint8_t *)(m->cur_data_ptr)) = index; 1028 1029 USB_IF_ENQUEUE(&f->used_q, m); 1030 1031 f->flag_iscomplete = 1; 1032 1033 usb_fifo_wakeup(f); 1034 } 1035 1036 static int 1037 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1038 { 1039 struct usb_device_request *req; 1040 struct usb_xfer *xfer; 1041 struct usb_fs_endpoint fs_ep; 1042 void *uaddr; /* userland pointer */ 1043 void *kaddr; 1044 usb_frlength_t offset; 1045 usb_frlength_t rem; 1046 usb_frcount_t n; 1047 uint32_t length; 1048 int error; 1049 uint8_t isread; 1050 1051 if (ep_index >= f->fs_ep_max) { 1052 return (EINVAL); 1053 } 1054 xfer = f->fs_xfer[ep_index]; 1055 if (xfer == NULL) { 1056 return (EINVAL); 1057 } 1058 mtx_lock(f->priv_mtx); 1059 if (usbd_transfer_pending(xfer)) { 1060 mtx_unlock(f->priv_mtx); 1061 return (EBUSY); /* should not happen */ 1062 } 1063 mtx_unlock(f->priv_mtx); 1064 1065 error = copyin(f->fs_ep_ptr + 1066 ep_index, &fs_ep, sizeof(fs_ep)); 1067 if (error) { 1068 return (error); 1069 } 1070 /* security checks */ 1071 1072 if (fs_ep.nFrames > xfer->max_frame_count) { 1073 xfer->error = USB_ERR_INVAL; 1074 goto complete; 1075 } 1076 if (fs_ep.nFrames == 0) { 1077 xfer->error = USB_ERR_INVAL; 1078 goto complete; 1079 } 1080 error = copyin(fs_ep.ppBuffer, 1081 &uaddr, sizeof(uaddr)); 1082 if (error) { 1083 return (error); 1084 } 1085 /* reset first frame */ 1086 usbd_xfer_set_frame_offset(xfer, 0, 0); 1087 1088 if (xfer->flags_int.control_xfr) { 1089 1090 req = xfer->frbuffers[0].buffer; 1091 1092 error = copyin(fs_ep.pLength, 1093 &length, sizeof(length)); 1094 if (error) { 1095 return (error); 1096 } 1097 if (length != sizeof(*req)) { 1098 xfer->error = USB_ERR_INVAL; 1099 goto complete; 1100 } 1101 if (length != 0) { 1102 error = copyin(uaddr, req, length); 1103 if (error) { 1104 return (error); 1105 } 1106 } 1107 if (ugen_check_request(f->udev, req)) { 1108 xfer->error = USB_ERR_INVAL; 1109 goto complete; 1110 } 1111 usbd_xfer_set_frame_len(xfer, 0, length); 1112 1113 /* Host mode only ! */ 1114 if ((req->bmRequestType & 1115 (UT_READ | UT_WRITE)) == UT_READ) { 1116 isread = 1; 1117 } else { 1118 isread = 0; 1119 } 1120 n = 1; 1121 offset = sizeof(*req); 1122 1123 } else { 1124 /* Device and Host mode */ 1125 if (USB_GET_DATA_ISREAD(xfer)) { 1126 isread = 1; 1127 } else { 1128 isread = 0; 1129 } 1130 n = 0; 1131 offset = 0; 1132 } 1133 1134 rem = usbd_xfer_max_len(xfer); 1135 xfer->nframes = fs_ep.nFrames; 1136 xfer->timeout = fs_ep.timeout; 1137 if (xfer->timeout > 65535) { 1138 xfer->timeout = 65535; 1139 } 1140 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1141 xfer->flags.short_xfer_ok = 1; 1142 else 1143 xfer->flags.short_xfer_ok = 0; 1144 1145 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1146 xfer->flags.short_frames_ok = 1; 1147 else 1148 xfer->flags.short_frames_ok = 0; 1149 1150 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1151 xfer->flags.force_short_xfer = 1; 1152 else 1153 xfer->flags.force_short_xfer = 0; 1154 1155 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1156 usbd_xfer_set_stall(xfer); 1157 else 1158 xfer->flags.stall_pipe = 0; 1159 1160 for (; n != xfer->nframes; n++) { 1161 1162 error = copyin(fs_ep.pLength + n, 1163 &length, sizeof(length)); 1164 if (error) { 1165 break; 1166 } 1167 usbd_xfer_set_frame_len(xfer, n, length); 1168 1169 if (length > rem) { 1170 xfer->error = USB_ERR_INVAL; 1171 goto complete; 1172 } 1173 rem -= length; 1174 1175 if (!isread) { 1176 1177 /* we need to know the source buffer */ 1178 error = copyin(fs_ep.ppBuffer + n, 1179 &uaddr, sizeof(uaddr)); 1180 if (error) { 1181 break; 1182 } 1183 if (xfer->flags_int.isochronous_xfr) { 1184 /* get kernel buffer address */ 1185 kaddr = xfer->frbuffers[0].buffer; 1186 kaddr = USB_ADD_BYTES(kaddr, offset); 1187 } else { 1188 /* set current frame offset */ 1189 usbd_xfer_set_frame_offset(xfer, offset, n); 1190 1191 /* get kernel buffer address */ 1192 kaddr = xfer->frbuffers[n].buffer; 1193 } 1194 1195 /* move data */ 1196 error = copyin(uaddr, kaddr, length); 1197 if (error) { 1198 break; 1199 } 1200 } 1201 offset += length; 1202 } 1203 return (error); 1204 1205 complete: 1206 mtx_lock(f->priv_mtx); 1207 ugen_fs_set_complete(f, ep_index); 1208 mtx_unlock(f->priv_mtx); 1209 return (0); 1210 } 1211 1212 static int 1213 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1214 { 1215 struct usb_device_request *req; 1216 struct usb_xfer *xfer; 1217 struct usb_fs_endpoint fs_ep; 1218 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1219 void *uaddr; /* userland ptr */ 1220 void *kaddr; 1221 usb_frlength_t offset; 1222 usb_frlength_t rem; 1223 usb_frcount_t n; 1224 uint32_t length; 1225 uint32_t temp; 1226 int error; 1227 uint8_t isread; 1228 1229 if (ep_index >= f->fs_ep_max) 1230 return (EINVAL); 1231 1232 xfer = f->fs_xfer[ep_index]; 1233 if (xfer == NULL) 1234 return (EINVAL); 1235 1236 mtx_lock(f->priv_mtx); 1237 if (usbd_transfer_pending(xfer)) { 1238 mtx_unlock(f->priv_mtx); 1239 return (EBUSY); /* should not happen */ 1240 } 1241 mtx_unlock(f->priv_mtx); 1242 1243 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1244 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1245 if (error) { 1246 return (error); 1247 } 1248 fs_ep.status = xfer->error; 1249 fs_ep.aFrames = xfer->aframes; 1250 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1251 if (xfer->error) { 1252 goto complete; 1253 } 1254 if (xfer->flags_int.control_xfr) { 1255 req = xfer->frbuffers[0].buffer; 1256 1257 /* Host mode only ! */ 1258 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1259 isread = 1; 1260 } else { 1261 isread = 0; 1262 } 1263 if (xfer->nframes == 0) 1264 n = 0; /* should never happen */ 1265 else 1266 n = 1; 1267 } else { 1268 /* Device and Host mode */ 1269 if (USB_GET_DATA_ISREAD(xfer)) { 1270 isread = 1; 1271 } else { 1272 isread = 0; 1273 } 1274 n = 0; 1275 } 1276 1277 /* Update lengths and copy out data */ 1278 1279 rem = usbd_xfer_max_len(xfer); 1280 offset = 0; 1281 1282 for (; n != xfer->nframes; n++) { 1283 1284 /* get initial length into "temp" */ 1285 error = copyin(fs_ep.pLength + n, 1286 &temp, sizeof(temp)); 1287 if (error) { 1288 return (error); 1289 } 1290 if (temp > rem) { 1291 /* the userland length has been corrupted */ 1292 DPRINTF("corrupt userland length " 1293 "%u > %u\n", temp, rem); 1294 fs_ep.status = USB_ERR_INVAL; 1295 goto complete; 1296 } 1297 rem -= temp; 1298 1299 /* get actual transfer length */ 1300 length = xfer->frlengths[n]; 1301 if (length > temp) { 1302 /* data overflow */ 1303 fs_ep.status = USB_ERR_INVAL; 1304 DPRINTF("data overflow %u > %u\n", 1305 length, temp); 1306 goto complete; 1307 } 1308 if (isread) { 1309 1310 /* we need to know the destination buffer */ 1311 error = copyin(fs_ep.ppBuffer + n, 1312 &uaddr, sizeof(uaddr)); 1313 if (error) { 1314 return (error); 1315 } 1316 if (xfer->flags_int.isochronous_xfr) { 1317 /* only one frame buffer */ 1318 kaddr = USB_ADD_BYTES( 1319 xfer->frbuffers[0].buffer, offset); 1320 } else { 1321 /* multiple frame buffers */ 1322 kaddr = xfer->frbuffers[n].buffer; 1323 } 1324 1325 /* move data */ 1326 error = copyout(kaddr, uaddr, length); 1327 if (error) { 1328 return (error); 1329 } 1330 } 1331 /* 1332 * Update offset according to initial length, which is 1333 * needed by isochronous transfers! 1334 */ 1335 offset += temp; 1336 1337 /* update length */ 1338 error = copyout(&length, 1339 fs_ep.pLength + n, sizeof(length)); 1340 if (error) { 1341 return (error); 1342 } 1343 } 1344 1345 complete: 1346 /* update "aFrames" */ 1347 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1348 sizeof(fs_ep.aFrames)); 1349 if (error) 1350 goto done; 1351 1352 /* update "isoc_time_complete" */ 1353 error = copyout(&fs_ep.isoc_time_complete, 1354 &fs_ep_uptr->isoc_time_complete, 1355 sizeof(fs_ep.isoc_time_complete)); 1356 if (error) 1357 goto done; 1358 /* update "status" */ 1359 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1360 sizeof(fs_ep.status)); 1361 done: 1362 return (error); 1363 } 1364 1365 static uint8_t 1366 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1367 { 1368 struct usb_fifo *f_rx; 1369 struct usb_fifo *f_tx; 1370 1371 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1372 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1373 1374 if ((fflags & FREAD) && f_rx && 1375 (f_rx->xfer[0] || f_rx->xfer[1])) { 1376 return (1); /* RX FIFO in use */ 1377 } 1378 if ((fflags & FWRITE) && f_tx && 1379 (f_tx->xfer[0] || f_tx->xfer[1])) { 1380 return (1); /* TX FIFO in use */ 1381 } 1382 return (0); /* not in use */ 1383 } 1384 1385 static int 1386 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1387 { 1388 struct usb_config usb_config[1]; 1389 struct usb_device_request req; 1390 union { 1391 struct usb_fs_complete *pcomp; 1392 struct usb_fs_start *pstart; 1393 struct usb_fs_stop *pstop; 1394 struct usb_fs_open *popen; 1395 struct usb_fs_open_stream *popen_stream; 1396 struct usb_fs_close *pclose; 1397 struct usb_fs_clear_stall_sync *pstall; 1398 void *addr; 1399 } u; 1400 struct usb_endpoint *ep; 1401 struct usb_endpoint_descriptor *ed; 1402 struct usb_xfer *xfer; 1403 int error = 0; 1404 uint8_t iface_index; 1405 uint8_t isread; 1406 uint8_t ep_index; 1407 uint8_t pre_scale; 1408 1409 u.addr = addr; 1410 1411 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1412 1413 switch (cmd) { 1414 case USB_FS_COMPLETE: 1415 mtx_lock(f->priv_mtx); 1416 error = ugen_fs_get_complete(f, &ep_index); 1417 mtx_unlock(f->priv_mtx); 1418 1419 if (error) { 1420 error = EBUSY; 1421 break; 1422 } 1423 u.pcomp->ep_index = ep_index; 1424 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1425 break; 1426 1427 case USB_FS_START: 1428 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1429 if (error) 1430 break; 1431 mtx_lock(f->priv_mtx); 1432 xfer = f->fs_xfer[u.pstart->ep_index]; 1433 usbd_transfer_start(xfer); 1434 mtx_unlock(f->priv_mtx); 1435 break; 1436 1437 case USB_FS_STOP: 1438 if (u.pstop->ep_index >= f->fs_ep_max) { 1439 error = EINVAL; 1440 break; 1441 } 1442 mtx_lock(f->priv_mtx); 1443 xfer = f->fs_xfer[u.pstart->ep_index]; 1444 if (usbd_transfer_pending(xfer)) { 1445 usbd_transfer_stop(xfer); 1446 /* 1447 * Check if the USB transfer was stopped 1448 * before it was even started. Else a cancel 1449 * callback will be pending. 1450 */ 1451 if (!xfer->flags_int.transferring) { 1452 ugen_fs_set_complete(xfer->priv_sc, 1453 USB_P2U(xfer->priv_fifo)); 1454 } 1455 } 1456 mtx_unlock(f->priv_mtx); 1457 break; 1458 1459 case USB_FS_OPEN: 1460 case USB_FS_OPEN_STREAM: 1461 if (u.popen->ep_index >= f->fs_ep_max) { 1462 error = EINVAL; 1463 break; 1464 } 1465 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1466 error = EBUSY; 1467 break; 1468 } 1469 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1470 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1471 } 1472 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1473 pre_scale = 1; 1474 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1475 } else { 1476 pre_scale = 0; 1477 } 1478 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1479 u.popen->max_frames = USB_FS_MAX_FRAMES; 1480 break; 1481 } 1482 if (u.popen->max_frames == 0) { 1483 error = EINVAL; 1484 break; 1485 } 1486 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1487 if (ep == NULL) { 1488 error = EINVAL; 1489 break; 1490 } 1491 ed = ep->edesc; 1492 if (ed == NULL) { 1493 error = ENXIO; 1494 break; 1495 } 1496 iface_index = ep->iface_index; 1497 1498 memset(usb_config, 0, sizeof(usb_config)); 1499 1500 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1501 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1502 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1503 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1504 usb_config[0].flags.proxy_buffer = 1; 1505 if (pre_scale != 0) 1506 usb_config[0].flags.pre_scale_frames = 1; 1507 usb_config[0].callback = &ugen_ctrl_fs_callback; 1508 usb_config[0].timeout = 0; /* no timeout */ 1509 usb_config[0].frames = u.popen->max_frames; 1510 usb_config[0].bufsize = u.popen->max_bufsize; 1511 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1512 if (cmd == USB_FS_OPEN_STREAM) 1513 usb_config[0].stream_id = u.popen_stream->stream_id; 1514 1515 if (usb_config[0].type == UE_CONTROL) { 1516 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1517 error = EINVAL; 1518 break; 1519 } 1520 } else { 1521 1522 isread = ((usb_config[0].endpoint & 1523 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1524 1525 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1526 isread = !isread; 1527 } 1528 /* check permissions */ 1529 if (isread) { 1530 if (!(fflags & FREAD)) { 1531 error = EPERM; 1532 break; 1533 } 1534 } else { 1535 if (!(fflags & FWRITE)) { 1536 error = EPERM; 1537 break; 1538 } 1539 } 1540 } 1541 error = usbd_transfer_setup(f->udev, &iface_index, 1542 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1543 f, f->priv_mtx); 1544 if (error == 0) { 1545 /* update maximums */ 1546 u.popen->max_packet_length = 1547 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1548 u.popen->max_bufsize = 1549 f->fs_xfer[u.popen->ep_index]->max_data_length; 1550 /* update number of frames */ 1551 u.popen->max_frames = 1552 f->fs_xfer[u.popen->ep_index]->nframes; 1553 /* store index of endpoint */ 1554 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1555 ((uint8_t *)0) + u.popen->ep_index; 1556 } else { 1557 error = ENOMEM; 1558 } 1559 break; 1560 1561 case USB_FS_CLOSE: 1562 if (u.pclose->ep_index >= f->fs_ep_max) { 1563 error = EINVAL; 1564 break; 1565 } 1566 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1567 error = EINVAL; 1568 break; 1569 } 1570 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1571 break; 1572 1573 case USB_FS_CLEAR_STALL_SYNC: 1574 if (u.pstall->ep_index >= f->fs_ep_max) { 1575 error = EINVAL; 1576 break; 1577 } 1578 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1579 error = EINVAL; 1580 break; 1581 } 1582 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1583 error = EINVAL; 1584 break; 1585 } 1586 mtx_lock(f->priv_mtx); 1587 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1588 mtx_unlock(f->priv_mtx); 1589 1590 if (error) { 1591 return (EBUSY); 1592 } 1593 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1594 1595 /* setup a clear-stall packet */ 1596 req.bmRequestType = UT_WRITE_ENDPOINT; 1597 req.bRequest = UR_CLEAR_FEATURE; 1598 USETW(req.wValue, UF_ENDPOINT_HALT); 1599 req.wIndex[0] = ep->edesc->bEndpointAddress; 1600 req.wIndex[1] = 0; 1601 USETW(req.wLength, 0); 1602 1603 error = usbd_do_request(f->udev, NULL, &req, NULL); 1604 if (error == 0) { 1605 usbd_clear_data_toggle(f->udev, ep); 1606 } else { 1607 error = ENXIO; 1608 } 1609 break; 1610 1611 default: 1612 error = ENOIOCTL; 1613 break; 1614 } 1615 1616 DPRINTFN(6, "error=%d\n", error); 1617 1618 return (error); 1619 } 1620 1621 static int 1622 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1623 { 1624 uint8_t t; 1625 1626 if (*(int *)addr) 1627 t = 1; 1628 else 1629 t = 0; 1630 1631 if (f->flag_short == t) { 1632 /* same value like before - accept */ 1633 return (0); 1634 } 1635 if (f->xfer[0] || f->xfer[1]) { 1636 /* cannot change this during transfer */ 1637 return (EBUSY); 1638 } 1639 f->flag_short = t; 1640 return (0); 1641 } 1642 1643 static int 1644 ugen_set_timeout(struct usb_fifo *f, void *addr) 1645 { 1646 f->timeout = *(int *)addr; 1647 if (f->timeout > 65535) { 1648 /* limit user input */ 1649 f->timeout = 65535; 1650 } 1651 return (0); 1652 } 1653 1654 static int 1655 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1656 { 1657 if (f->xfer[0]) { 1658 *(int *)addr = f->xfer[0]->max_frame_size; 1659 } else { 1660 return (EINVAL); 1661 } 1662 return (0); 1663 } 1664 1665 static int 1666 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1667 { 1668 usb_frlength_t t; 1669 1670 if (*(int *)addr < 0) 1671 t = 0; /* use "wMaxPacketSize" */ 1672 else if (*(int *)addr < (256 * 1024)) 1673 t = *(int *)addr; 1674 else 1675 t = 256 * 1024; 1676 1677 if (f->bufsize == t) { 1678 /* same value like before - accept */ 1679 return (0); 1680 } 1681 if (f->xfer[0] || f->xfer[1]) { 1682 /* cannot change this during transfer */ 1683 return (EBUSY); 1684 } 1685 f->bufsize = t; 1686 return (0); 1687 } 1688 1689 static int 1690 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1691 { 1692 *(int *)addr = f->bufsize; 1693 return (0); 1694 } 1695 1696 static int 1697 ugen_get_iface_desc(struct usb_fifo *f, 1698 struct usb_interface_descriptor *idesc) 1699 { 1700 struct usb_interface *iface; 1701 1702 iface = usbd_get_iface(f->udev, f->iface_index); 1703 if (iface && iface->idesc) { 1704 *idesc = *(iface->idesc); 1705 } else { 1706 return (EIO); 1707 } 1708 return (0); 1709 } 1710 1711 static int 1712 ugen_get_endpoint_desc(struct usb_fifo *f, 1713 struct usb_endpoint_descriptor *ed) 1714 { 1715 struct usb_endpoint *ep; 1716 1717 ep = usb_fifo_softc(f); 1718 1719 if (ep && ep->edesc) { 1720 *ed = *ep->edesc; 1721 } else { 1722 return (EINVAL); 1723 } 1724 return (0); 1725 } 1726 1727 static int 1728 ugen_set_power_mode(struct usb_fifo *f, int mode) 1729 { 1730 struct usb_device *udev = f->udev; 1731 int err; 1732 uint8_t old_mode; 1733 1734 if ((udev == NULL) || 1735 (udev->parent_hub == NULL)) { 1736 return (EINVAL); 1737 } 1738 err = priv_check(curthread, PRIV_DRIVER); 1739 if (err) 1740 return (err); 1741 1742 /* get old power mode */ 1743 old_mode = udev->power_mode; 1744 1745 /* if no change, then just return */ 1746 if (old_mode == mode) 1747 return (0); 1748 1749 switch (mode) { 1750 case USB_POWER_MODE_OFF: 1751 /* get the device unconfigured */ 1752 err = ugen_set_config(f, USB_UNCONFIG_INDEX); 1753 if (err) { 1754 DPRINTFN(0, "Could not unconfigure " 1755 "device (ignored)\n"); 1756 } 1757 1758 /* clear port enable */ 1759 err = usbd_req_clear_port_feature(udev->parent_hub, 1760 NULL, udev->port_no, UHF_PORT_ENABLE); 1761 break; 1762 1763 case USB_POWER_MODE_ON: 1764 case USB_POWER_MODE_SAVE: 1765 break; 1766 1767 case USB_POWER_MODE_RESUME: 1768 #if USB_HAVE_POWERD 1769 /* let USB-powerd handle resume */ 1770 USB_BUS_LOCK(udev->bus); 1771 udev->pwr_save.write_refs++; 1772 udev->pwr_save.last_xfer_time = ticks; 1773 USB_BUS_UNLOCK(udev->bus); 1774 1775 /* set new power mode */ 1776 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1777 1778 /* wait for resume to complete */ 1779 usb_pause_mtx(NULL, hz / 4); 1780 1781 /* clear write reference */ 1782 USB_BUS_LOCK(udev->bus); 1783 udev->pwr_save.write_refs--; 1784 USB_BUS_UNLOCK(udev->bus); 1785 #endif 1786 mode = USB_POWER_MODE_SAVE; 1787 break; 1788 1789 case USB_POWER_MODE_SUSPEND: 1790 #if USB_HAVE_POWERD 1791 /* let USB-powerd handle suspend */ 1792 USB_BUS_LOCK(udev->bus); 1793 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1794 USB_BUS_UNLOCK(udev->bus); 1795 #endif 1796 mode = USB_POWER_MODE_SAVE; 1797 break; 1798 1799 default: 1800 return (EINVAL); 1801 } 1802 1803 if (err) 1804 return (ENXIO); /* I/O failure */ 1805 1806 /* if we are powered off we need to re-enumerate first */ 1807 if (old_mode == USB_POWER_MODE_OFF) { 1808 if (udev->flags.usb_mode == USB_MODE_HOST) { 1809 if (udev->re_enumerate_wait == 0) 1810 udev->re_enumerate_wait = 1; 1811 } 1812 /* set power mode will wake up the explore thread */ 1813 } 1814 1815 /* set new power mode */ 1816 usbd_set_power_mode(udev, mode); 1817 1818 return (0); /* success */ 1819 } 1820 1821 static int 1822 ugen_get_power_mode(struct usb_fifo *f) 1823 { 1824 struct usb_device *udev = f->udev; 1825 1826 if (udev == NULL) 1827 return (USB_POWER_MODE_ON); 1828 1829 return (udev->power_mode); 1830 } 1831 1832 static int 1833 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1834 uint8_t set, uint16_t feature) 1835 { 1836 struct usb_device *udev = f->udev; 1837 struct usb_hub *hub; 1838 int err; 1839 1840 err = priv_check(curthread, PRIV_DRIVER); 1841 if (err) { 1842 return (err); 1843 } 1844 if (port_no == 0) { 1845 return (EINVAL); 1846 } 1847 if ((udev == NULL) || 1848 (udev->hub == NULL)) { 1849 return (EINVAL); 1850 } 1851 hub = udev->hub; 1852 1853 if (port_no > hub->nports) { 1854 return (EINVAL); 1855 } 1856 if (set) 1857 err = usbd_req_set_port_feature(udev, 1858 NULL, port_no, feature); 1859 else 1860 err = usbd_req_clear_port_feature(udev, 1861 NULL, port_no, feature); 1862 1863 if (err) 1864 return (ENXIO); /* failure */ 1865 1866 return (0); /* success */ 1867 } 1868 1869 static int 1870 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1871 { 1872 struct usb_fifo *f_rx; 1873 struct usb_fifo *f_tx; 1874 int error = 0; 1875 1876 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1877 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1878 1879 switch (cmd) { 1880 case USB_SET_RX_SHORT_XFER: 1881 if (fflags & FREAD) { 1882 error = ugen_set_short_xfer(f_rx, addr); 1883 } else { 1884 error = EINVAL; 1885 } 1886 break; 1887 1888 case USB_SET_TX_FORCE_SHORT: 1889 if (fflags & FWRITE) { 1890 error = ugen_set_short_xfer(f_tx, addr); 1891 } else { 1892 error = EINVAL; 1893 } 1894 break; 1895 1896 case USB_SET_RX_TIMEOUT: 1897 if (fflags & FREAD) { 1898 error = ugen_set_timeout(f_rx, addr); 1899 } else { 1900 error = EINVAL; 1901 } 1902 break; 1903 1904 case USB_SET_TX_TIMEOUT: 1905 if (fflags & FWRITE) { 1906 error = ugen_set_timeout(f_tx, addr); 1907 } else { 1908 error = EINVAL; 1909 } 1910 break; 1911 1912 case USB_GET_RX_FRAME_SIZE: 1913 if (fflags & FREAD) { 1914 error = ugen_get_frame_size(f_rx, addr); 1915 } else { 1916 error = EINVAL; 1917 } 1918 break; 1919 1920 case USB_GET_TX_FRAME_SIZE: 1921 if (fflags & FWRITE) { 1922 error = ugen_get_frame_size(f_tx, addr); 1923 } else { 1924 error = EINVAL; 1925 } 1926 break; 1927 1928 case USB_SET_RX_BUFFER_SIZE: 1929 if (fflags & FREAD) { 1930 error = ugen_set_buffer_size(f_rx, addr); 1931 } else { 1932 error = EINVAL; 1933 } 1934 break; 1935 1936 case USB_SET_TX_BUFFER_SIZE: 1937 if (fflags & FWRITE) { 1938 error = ugen_set_buffer_size(f_tx, addr); 1939 } else { 1940 error = EINVAL; 1941 } 1942 break; 1943 1944 case USB_GET_RX_BUFFER_SIZE: 1945 if (fflags & FREAD) { 1946 error = ugen_get_buffer_size(f_rx, addr); 1947 } else { 1948 error = EINVAL; 1949 } 1950 break; 1951 1952 case USB_GET_TX_BUFFER_SIZE: 1953 if (fflags & FWRITE) { 1954 error = ugen_get_buffer_size(f_tx, addr); 1955 } else { 1956 error = EINVAL; 1957 } 1958 break; 1959 1960 case USB_GET_RX_INTERFACE_DESC: 1961 if (fflags & FREAD) { 1962 error = ugen_get_iface_desc(f_rx, addr); 1963 } else { 1964 error = EINVAL; 1965 } 1966 break; 1967 1968 case USB_GET_TX_INTERFACE_DESC: 1969 if (fflags & FWRITE) { 1970 error = ugen_get_iface_desc(f_tx, addr); 1971 } else { 1972 error = EINVAL; 1973 } 1974 break; 1975 1976 case USB_GET_RX_ENDPOINT_DESC: 1977 if (fflags & FREAD) { 1978 error = ugen_get_endpoint_desc(f_rx, addr); 1979 } else { 1980 error = EINVAL; 1981 } 1982 break; 1983 1984 case USB_GET_TX_ENDPOINT_DESC: 1985 if (fflags & FWRITE) { 1986 error = ugen_get_endpoint_desc(f_tx, addr); 1987 } else { 1988 error = EINVAL; 1989 } 1990 break; 1991 1992 case USB_SET_RX_STALL_FLAG: 1993 if ((fflags & FREAD) && (*(int *)addr)) { 1994 f_rx->flag_stall = 1; 1995 } 1996 break; 1997 1998 case USB_SET_TX_STALL_FLAG: 1999 if ((fflags & FWRITE) && (*(int *)addr)) { 2000 f_tx->flag_stall = 1; 2001 } 2002 break; 2003 2004 default: 2005 error = ENOIOCTL; 2006 break; 2007 } 2008 return (error); 2009 } 2010 2011 static int 2012 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2013 { 2014 union { 2015 struct usb_interface_descriptor *idesc; 2016 struct usb_alt_interface *ai; 2017 struct usb_device_descriptor *ddesc; 2018 struct usb_config_descriptor *cdesc; 2019 struct usb_device_stats *stat; 2020 struct usb_fs_init *pinit; 2021 struct usb_fs_uninit *puninit; 2022 uint32_t *ptime; 2023 void *addr; 2024 int *pint; 2025 } u; 2026 struct usb_device_descriptor *dtemp; 2027 struct usb_config_descriptor *ctemp; 2028 struct usb_interface *iface; 2029 int error = 0; 2030 uint8_t n; 2031 2032 u.addr = addr; 2033 2034 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2035 2036 switch (cmd) { 2037 case USB_DISCOVER: 2038 usb_needs_explore_all(); 2039 break; 2040 2041 case USB_SETDEBUG: 2042 if (!(fflags & FWRITE)) { 2043 error = EPERM; 2044 break; 2045 } 2046 usb_debug = *(int *)addr; 2047 break; 2048 2049 case USB_GET_CONFIG: 2050 *(int *)addr = f->udev->curr_config_index; 2051 break; 2052 2053 case USB_SET_CONFIG: 2054 if (!(fflags & FWRITE)) { 2055 error = EPERM; 2056 break; 2057 } 2058 error = ugen_set_config(f, *(int *)addr); 2059 break; 2060 2061 case USB_GET_ALTINTERFACE: 2062 iface = usbd_get_iface(f->udev, 2063 u.ai->uai_interface_index); 2064 if (iface && iface->idesc) { 2065 u.ai->uai_alt_index = iface->alt_index; 2066 } else { 2067 error = EINVAL; 2068 } 2069 break; 2070 2071 case USB_SET_ALTINTERFACE: 2072 if (!(fflags & FWRITE)) { 2073 error = EPERM; 2074 break; 2075 } 2076 error = ugen_set_interface(f, 2077 u.ai->uai_interface_index, u.ai->uai_alt_index); 2078 break; 2079 2080 case USB_GET_DEVICE_DESC: 2081 dtemp = usbd_get_device_descriptor(f->udev); 2082 if (!dtemp) { 2083 error = EIO; 2084 break; 2085 } 2086 *u.ddesc = *dtemp; 2087 break; 2088 2089 case USB_GET_CONFIG_DESC: 2090 ctemp = usbd_get_config_descriptor(f->udev); 2091 if (!ctemp) { 2092 error = EIO; 2093 break; 2094 } 2095 *u.cdesc = *ctemp; 2096 break; 2097 2098 case USB_GET_FULL_DESC: 2099 error = ugen_get_cdesc(f, addr); 2100 break; 2101 2102 case USB_GET_STRING_DESC: 2103 error = ugen_get_sdesc(f, addr); 2104 break; 2105 2106 case USB_GET_IFACE_DRIVER: 2107 error = ugen_get_iface_driver(f, addr); 2108 break; 2109 2110 case USB_REQUEST: 2111 case USB_DO_REQUEST: 2112 if (!(fflags & FWRITE)) { 2113 error = EPERM; 2114 break; 2115 } 2116 error = ugen_do_request(f, addr); 2117 break; 2118 2119 case USB_DEVICEINFO: 2120 case USB_GET_DEVICEINFO: 2121 error = usb_gen_fill_deviceinfo(f, addr); 2122 break; 2123 2124 case USB_DEVICESTATS: 2125 for (n = 0; n != 4; n++) { 2126 2127 u.stat->uds_requests_fail[n] = 2128 f->udev->bus->stats_err.uds_requests[n]; 2129 2130 u.stat->uds_requests_ok[n] = 2131 f->udev->bus->stats_ok.uds_requests[n]; 2132 } 2133 break; 2134 2135 case USB_DEVICEENUMERATE: 2136 error = ugen_re_enumerate(f); 2137 break; 2138 2139 case USB_GET_PLUGTIME: 2140 *u.ptime = f->udev->plugtime; 2141 break; 2142 2143 case USB_CLAIM_INTERFACE: 2144 case USB_RELEASE_INTERFACE: 2145 /* TODO */ 2146 break; 2147 2148 case USB_IFACE_DRIVER_ACTIVE: 2149 2150 n = *u.pint & 0xFF; 2151 2152 iface = usbd_get_iface(f->udev, n); 2153 2154 if (iface && iface->subdev) 2155 error = 0; 2156 else 2157 error = ENXIO; 2158 break; 2159 2160 case USB_IFACE_DRIVER_DETACH: 2161 2162 error = priv_check(curthread, PRIV_DRIVER); 2163 2164 if (error) 2165 break; 2166 2167 n = *u.pint & 0xFF; 2168 2169 if (n == USB_IFACE_INDEX_ANY) { 2170 error = EINVAL; 2171 break; 2172 } 2173 2174 /* 2175 * Detach the currently attached driver. 2176 */ 2177 usb_detach_device(f->udev, n, 0); 2178 2179 /* 2180 * Set parent to self, this should keep attach away 2181 * until the next set configuration event. 2182 */ 2183 usbd_set_parent_iface(f->udev, n, n); 2184 break; 2185 2186 case USB_SET_POWER_MODE: 2187 error = ugen_set_power_mode(f, *u.pint); 2188 break; 2189 2190 case USB_GET_POWER_MODE: 2191 *u.pint = ugen_get_power_mode(f); 2192 break; 2193 2194 case USB_SET_PORT_ENABLE: 2195 error = ugen_do_port_feature(f, 2196 *u.pint, 1, UHF_PORT_ENABLE); 2197 break; 2198 2199 case USB_SET_PORT_DISABLE: 2200 error = ugen_do_port_feature(f, 2201 *u.pint, 0, UHF_PORT_ENABLE); 2202 break; 2203 2204 case USB_FS_INIT: 2205 /* verify input parameters */ 2206 if (u.pinit->pEndpoints == NULL) { 2207 error = EINVAL; 2208 break; 2209 } 2210 if (u.pinit->ep_index_max > 127) { 2211 error = EINVAL; 2212 break; 2213 } 2214 if (u.pinit->ep_index_max == 0) { 2215 error = EINVAL; 2216 break; 2217 } 2218 if (f->fs_xfer != NULL) { 2219 error = EBUSY; 2220 break; 2221 } 2222 if (f->dev_ep_index != 0) { 2223 error = EINVAL; 2224 break; 2225 } 2226 if (ugen_fifo_in_use(f, fflags)) { 2227 error = EBUSY; 2228 break; 2229 } 2230 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2231 if (error) { 2232 break; 2233 } 2234 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2235 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2236 if (f->fs_xfer == NULL) { 2237 usb_fifo_free_buffer(f); 2238 error = ENOMEM; 2239 break; 2240 } 2241 f->fs_ep_max = u.pinit->ep_index_max; 2242 f->fs_ep_ptr = u.pinit->pEndpoints; 2243 break; 2244 2245 case USB_FS_UNINIT: 2246 if (u.puninit->dummy != 0) { 2247 error = EINVAL; 2248 break; 2249 } 2250 error = ugen_fs_uninit(f); 2251 break; 2252 2253 default: 2254 mtx_lock(f->priv_mtx); 2255 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2256 mtx_unlock(f->priv_mtx); 2257 break; 2258 } 2259 DPRINTFN(6, "error=%d\n", error); 2260 return (error); 2261 } 2262 2263 static void 2264 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2265 { 2266 ; /* workaround for a bug in "indent" */ 2267 2268 DPRINTF("st=%u alen=%u aframes=%u\n", 2269 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2270 2271 switch (USB_GET_STATE(xfer)) { 2272 case USB_ST_SETUP: 2273 usbd_transfer_submit(xfer); 2274 break; 2275 default: 2276 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2277 break; 2278 } 2279 } 2280 #endif /* USB_HAVE_UGEN */ 2281