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/param.h> 29 #include <sys/queue.h> 30 #include <sys/types.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/bus.h> 34 #include <sys/module.h> 35 #include <sys/lock.h> 36 #include <sys/mutex.h> 37 #include <sys/condvar.h> 38 #include <sys/sysctl.h> 39 #include <sys/unistd.h> 40 #include <sys/callout.h> 41 #include <sys/malloc.h> 42 #include <sys/priv.h> 43 #include <sys/conf.h> 44 #include <sys/fcntl.h> 45 46 #include <bus/u4b/usb.h> 47 #include <bus/u4b/usb_ioctl.h> 48 #include <bus/u4b/usbdi.h> 49 #include <bus/u4b/usbdi_util.h> 50 51 #define USB_DEBUG_VAR ugen_debug 52 53 #include <bus/u4b/usb_core.h> 54 #include <bus/u4b/usb_dev.h> 55 #include <bus/u4b/usb_mbuf.h> 56 #include <bus/u4b/usb_process.h> 57 #include <bus/u4b/usb_device.h> 58 #include <bus/u4b/usb_debug.h> 59 #include <bus/u4b/usb_request.h> 60 #include <bus/u4b/usb_busdma.h> 61 #include <bus/u4b/usb_util.h> 62 #include <bus/u4b/usb_hub.h> 63 #include <bus/u4b/usb_generic.h> 64 #include <bus/u4b/usb_transfer.h> 65 66 #include <bus/u4b/usb_controller.h> 67 #include <bus/u4b/usb_bus.h> 68 69 #if USB_HAVE_UGEN 70 71 /* defines */ 72 73 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 74 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 75 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 76 77 /* function prototypes */ 78 79 static usb_callback_t ugen_read_clear_stall_callback; 80 static usb_callback_t ugen_write_clear_stall_callback; 81 static usb_callback_t ugen_ctrl_read_callback; 82 static usb_callback_t ugen_ctrl_write_callback; 83 static usb_callback_t ugen_isoc_read_callback; 84 static usb_callback_t ugen_isoc_write_callback; 85 static usb_callback_t ugen_ctrl_fs_callback; 86 87 static usb_fifo_open_t ugen_open; 88 static usb_fifo_close_t ugen_close; 89 static usb_fifo_ioctl_t ugen_ioctl; 90 static usb_fifo_ioctl_t ugen_ioctl_post; 91 static usb_fifo_cmd_t ugen_start_read; 92 static usb_fifo_cmd_t ugen_start_write; 93 static usb_fifo_cmd_t ugen_stop_io; 94 95 static int ugen_transfer_setup(struct usb_fifo *, 96 const struct usb_config *, uint8_t); 97 static int ugen_open_pipe_write(struct usb_fifo *); 98 static int ugen_open_pipe_read(struct usb_fifo *); 99 static int ugen_set_config(struct usb_fifo *, uint8_t); 100 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 101 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 102 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 103 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 104 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 105 struct usb_device_info *); 106 static int ugen_re_enumerate(struct usb_fifo *); 107 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 108 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 109 static int ugen_fs_uninit(struct usb_fifo *f); 110 111 /* structures */ 112 113 struct usb_fifo_methods usb_ugen_methods = { 114 .f_open = &ugen_open, 115 .f_close = &ugen_close, 116 .f_ioctl = &ugen_ioctl, 117 .f_ioctl_post = &ugen_ioctl_post, 118 .f_start_read = &ugen_start_read, 119 .f_stop_read = &ugen_stop_io, 120 .f_start_write = &ugen_start_write, 121 .f_stop_write = &ugen_stop_io, 122 }; 123 124 #ifdef USB_DEBUG 125 static int ugen_debug = 0; 126 127 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 128 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 129 0, "Debug level"); 130 131 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug); 132 #endif 133 134 135 /* prototypes */ 136 137 static int 138 ugen_transfer_setup(struct usb_fifo *f, 139 const struct usb_config *setup, uint8_t n_setup) 140 { 141 struct usb_endpoint *ep = usb_fifo_softc(f); 142 struct usb_device *udev = f->udev; 143 uint8_t iface_index = ep->iface_index; 144 int error; 145 146 lockmgr(f->priv_lock, LK_RELEASE); 147 148 /* 149 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 150 * exiting the mutex and checking things 151 */ 152 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 153 setup, n_setup, f, f->priv_lock); 154 if (error == 0) { 155 156 if (f->xfer[0]->nframes == 1) { 157 error = usb_fifo_alloc_buffer(f, 158 f->xfer[0]->max_data_length, 2); 159 } else { 160 error = usb_fifo_alloc_buffer(f, 161 f->xfer[0]->max_frame_size, 162 2 * f->xfer[0]->nframes); 163 } 164 if (error) { 165 usbd_transfer_unsetup(f->xfer, n_setup); 166 } 167 } 168 lockmgr(f->priv_lock, LK_EXCLUSIVE); 169 170 return (error); 171 } 172 173 static int 174 ugen_open(struct usb_fifo *f, int fflags) 175 { 176 struct usb_endpoint *ep = usb_fifo_softc(f); 177 struct usb_endpoint_descriptor *ed = ep->edesc; 178 uint8_t type; 179 180 DPRINTFN(6, "flag=0x%x\n", fflags); 181 182 lockmgr(f->priv_lock, LK_EXCLUSIVE); 183 switch (usbd_get_speed(f->udev)) { 184 case USB_SPEED_LOW: 185 case USB_SPEED_FULL: 186 f->nframes = UGEN_HW_FRAMES; 187 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 188 break; 189 default: 190 f->nframes = UGEN_HW_FRAMES * 8; 191 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 192 break; 193 } 194 195 type = ed->bmAttributes & UE_XFERTYPE; 196 if (type == UE_INTERRUPT) { 197 f->bufsize = 0; /* use "wMaxPacketSize" */ 198 } 199 f->timeout = USB_NO_TIMEOUT; 200 f->flag_short = 0; 201 f->fifo_zlp = 0; 202 lockmgr(f->priv_lock, LK_RELEASE); 203 204 return (0); 205 } 206 207 static void 208 ugen_close(struct usb_fifo *f, int fflags) 209 { 210 DPRINTFN(6, "flag=0x%x\n", fflags); 211 212 /* cleanup */ 213 214 lockmgr(f->priv_lock, LK_EXCLUSIVE); 215 usbd_transfer_stop(f->xfer[0]); 216 usbd_transfer_stop(f->xfer[1]); 217 lockmgr(f->priv_lock, LK_RELEASE); 218 219 usbd_transfer_unsetup(f->xfer, 2); 220 usb_fifo_free_buffer(f); 221 222 if (ugen_fs_uninit(f)) { 223 /* ignore any errors - we are closing */ 224 DPRINTFN(6, "no FIFOs\n"); 225 } 226 } 227 228 static int 229 ugen_open_pipe_write(struct usb_fifo *f) 230 { 231 struct usb_config usb_config[2]; 232 struct usb_endpoint *ep = usb_fifo_softc(f); 233 struct usb_endpoint_descriptor *ed = ep->edesc; 234 235 KKASSERT(lockstatus(f->priv_lock, curthread) != 0); 236 237 if (f->xfer[0] || f->xfer[1]) { 238 /* transfers are already opened */ 239 return (0); 240 } 241 memset(usb_config, 0, sizeof(usb_config)); 242 243 usb_config[1].type = UE_CONTROL; 244 usb_config[1].endpoint = 0; 245 usb_config[1].direction = UE_DIR_ANY; 246 usb_config[1].timeout = 1000; /* 1 second */ 247 usb_config[1].interval = 50;/* 50 milliseconds */ 248 usb_config[1].bufsize = sizeof(struct usb_device_request); 249 usb_config[1].callback = &ugen_write_clear_stall_callback; 250 usb_config[1].usb_mode = USB_MODE_HOST; 251 252 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 253 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 254 usb_config[0].direction = UE_DIR_TX; 255 usb_config[0].interval = USB_DEFAULT_INTERVAL; 256 usb_config[0].flags.proxy_buffer = 1; 257 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 258 259 switch (ed->bmAttributes & UE_XFERTYPE) { 260 case UE_INTERRUPT: 261 case UE_BULK: 262 if (f->flag_short) { 263 usb_config[0].flags.force_short_xfer = 1; 264 } 265 usb_config[0].callback = &ugen_ctrl_write_callback; 266 usb_config[0].timeout = f->timeout; 267 usb_config[0].frames = 1; 268 usb_config[0].bufsize = f->bufsize; 269 if (ugen_transfer_setup(f, usb_config, 2)) { 270 return (EIO); 271 } 272 /* first transfer does not clear stall */ 273 f->flag_stall = 0; 274 break; 275 276 case UE_ISOCHRONOUS: 277 usb_config[0].flags.short_xfer_ok = 1; 278 usb_config[0].bufsize = 0; /* use default */ 279 usb_config[0].frames = f->nframes; 280 usb_config[0].callback = &ugen_isoc_write_callback; 281 usb_config[0].timeout = 0; 282 283 /* clone configuration */ 284 usb_config[1] = usb_config[0]; 285 286 if (ugen_transfer_setup(f, usb_config, 2)) { 287 return (EIO); 288 } 289 break; 290 default: 291 return (EINVAL); 292 } 293 return (0); 294 } 295 296 static int 297 ugen_open_pipe_read(struct usb_fifo *f) 298 { 299 struct usb_config usb_config[2]; 300 struct usb_endpoint *ep = usb_fifo_softc(f); 301 struct usb_endpoint_descriptor *ed = ep->edesc; 302 303 KKASSERT(lockstatus(f->priv_lock, curthread) != 0); 304 305 if (f->xfer[0] || f->xfer[1]) { 306 /* transfers are already opened */ 307 return (0); 308 } 309 memset(usb_config, 0, sizeof(usb_config)); 310 311 usb_config[1].type = UE_CONTROL; 312 usb_config[1].endpoint = 0; 313 usb_config[1].direction = UE_DIR_ANY; 314 usb_config[1].timeout = 1000; /* 1 second */ 315 usb_config[1].interval = 50;/* 50 milliseconds */ 316 usb_config[1].bufsize = sizeof(struct usb_device_request); 317 usb_config[1].callback = &ugen_read_clear_stall_callback; 318 usb_config[1].usb_mode = USB_MODE_HOST; 319 320 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 321 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 322 usb_config[0].direction = UE_DIR_RX; 323 usb_config[0].interval = USB_DEFAULT_INTERVAL; 324 usb_config[0].flags.proxy_buffer = 1; 325 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 326 327 switch (ed->bmAttributes & UE_XFERTYPE) { 328 case UE_INTERRUPT: 329 case UE_BULK: 330 if (f->flag_short) { 331 usb_config[0].flags.short_xfer_ok = 1; 332 } 333 usb_config[0].timeout = f->timeout; 334 usb_config[0].frames = 1; 335 usb_config[0].callback = &ugen_ctrl_read_callback; 336 usb_config[0].bufsize = f->bufsize; 337 338 if (ugen_transfer_setup(f, usb_config, 2)) { 339 return (EIO); 340 } 341 /* first transfer does not clear stall */ 342 f->flag_stall = 0; 343 break; 344 345 case UE_ISOCHRONOUS: 346 usb_config[0].flags.short_xfer_ok = 1; 347 usb_config[0].bufsize = 0; /* use default */ 348 usb_config[0].frames = f->nframes; 349 usb_config[0].callback = &ugen_isoc_read_callback; 350 usb_config[0].timeout = 0; 351 352 /* clone configuration */ 353 usb_config[1] = usb_config[0]; 354 355 if (ugen_transfer_setup(f, usb_config, 2)) { 356 return (EIO); 357 } 358 break; 359 360 default: 361 return (EINVAL); 362 } 363 return (0); 364 } 365 366 static void 367 ugen_start_read(struct usb_fifo *f) 368 { 369 /* check that pipes are open */ 370 if (ugen_open_pipe_read(f)) { 371 /* signal error */ 372 usb_fifo_put_data_error(f); 373 } 374 /* start transfers */ 375 usbd_transfer_start(f->xfer[0]); 376 usbd_transfer_start(f->xfer[1]); 377 } 378 379 static void 380 ugen_start_write(struct usb_fifo *f) 381 { 382 /* check that pipes are open */ 383 if (ugen_open_pipe_write(f)) { 384 /* signal error */ 385 usb_fifo_get_data_error(f); 386 } 387 /* start transfers */ 388 usbd_transfer_start(f->xfer[0]); 389 usbd_transfer_start(f->xfer[1]); 390 } 391 392 static void 393 ugen_stop_io(struct usb_fifo *f) 394 { 395 /* stop transfers */ 396 usbd_transfer_stop(f->xfer[0]); 397 usbd_transfer_stop(f->xfer[1]); 398 } 399 400 static void 401 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 402 { 403 struct usb_fifo *f = usbd_xfer_softc(xfer); 404 struct usb_mbuf *m; 405 406 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 407 408 switch (USB_GET_STATE(xfer)) { 409 case USB_ST_TRANSFERRED: 410 if (xfer->actlen == 0) { 411 if (f->fifo_zlp != 4) { 412 f->fifo_zlp++; 413 } else { 414 /* 415 * Throttle a little bit we have multiple ZLPs 416 * in a row! 417 */ 418 xfer->interval = 64; /* ms */ 419 } 420 } else { 421 /* clear throttle */ 422 xfer->interval = 0; 423 f->fifo_zlp = 0; 424 } 425 usb_fifo_put_data(f, xfer->frbuffers, 0, 426 xfer->actlen, 1); 427 428 case USB_ST_SETUP: 429 if (f->flag_stall) { 430 usbd_transfer_start(f->xfer[1]); 431 break; 432 } 433 USB_IF_POLL(&f->free_q, m); 434 if (m) { 435 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 436 usbd_transfer_submit(xfer); 437 } 438 break; 439 440 default: /* Error */ 441 if (xfer->error != USB_ERR_CANCELLED) { 442 /* send a zero length packet to userland */ 443 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 444 f->flag_stall = 1; 445 f->fifo_zlp = 0; 446 usbd_transfer_start(f->xfer[1]); 447 } 448 break; 449 } 450 } 451 452 static void 453 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 454 { 455 struct usb_fifo *f = usbd_xfer_softc(xfer); 456 usb_frlength_t actlen; 457 458 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 459 460 switch (USB_GET_STATE(xfer)) { 461 case USB_ST_SETUP: 462 case USB_ST_TRANSFERRED: 463 /* 464 * If writing is in stall, just jump to clear stall 465 * callback and solve the situation. 466 */ 467 if (f->flag_stall) { 468 usbd_transfer_start(f->xfer[1]); 469 break; 470 } 471 /* 472 * Write data, setup and perform hardware transfer. 473 */ 474 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 475 xfer->max_data_length, &actlen, 0)) { 476 usbd_xfer_set_frame_len(xfer, 0, actlen); 477 usbd_transfer_submit(xfer); 478 } 479 break; 480 481 default: /* Error */ 482 if (xfer->error != USB_ERR_CANCELLED) { 483 f->flag_stall = 1; 484 usbd_transfer_start(f->xfer[1]); 485 } 486 break; 487 } 488 } 489 490 static void 491 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 492 { 493 struct usb_fifo *f = usbd_xfer_softc(xfer); 494 struct usb_xfer *xfer_other = f->xfer[0]; 495 496 if (f->flag_stall == 0) { 497 /* nothing to do */ 498 return; 499 } 500 if (usbd_clear_stall_callback(xfer, xfer_other)) { 501 DPRINTFN(5, "f=%p: stall cleared\n", f); 502 f->flag_stall = 0; 503 usbd_transfer_start(xfer_other); 504 } 505 } 506 507 static void 508 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 509 { 510 struct usb_fifo *f = usbd_xfer_softc(xfer); 511 struct usb_xfer *xfer_other = f->xfer[0]; 512 513 if (f->flag_stall == 0) { 514 /* nothing to do */ 515 return; 516 } 517 if (usbd_clear_stall_callback(xfer, xfer_other)) { 518 DPRINTFN(5, "f=%p: stall cleared\n", f); 519 f->flag_stall = 0; 520 usbd_transfer_start(xfer_other); 521 } 522 } 523 524 static void 525 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 526 { 527 struct usb_fifo *f = usbd_xfer_softc(xfer); 528 usb_frlength_t offset; 529 usb_frcount_t n; 530 531 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 532 533 switch (USB_GET_STATE(xfer)) { 534 case USB_ST_TRANSFERRED: 535 536 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 537 538 offset = 0; 539 540 for (n = 0; n != xfer->aframes; n++) { 541 usb_fifo_put_data(f, xfer->frbuffers, offset, 542 xfer->frlengths[n], 1); 543 offset += xfer->max_frame_size; 544 } 545 546 case USB_ST_SETUP: 547 tr_setup: 548 for (n = 0; n != xfer->nframes; n++) { 549 /* setup size for next transfer */ 550 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 551 } 552 usbd_transfer_submit(xfer); 553 break; 554 555 default: /* Error */ 556 if (xfer->error == USB_ERR_CANCELLED) { 557 break; 558 } 559 goto tr_setup; 560 } 561 } 562 563 static void 564 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 565 { 566 struct usb_fifo *f = usbd_xfer_softc(xfer); 567 usb_frlength_t actlen; 568 usb_frlength_t offset; 569 usb_frcount_t n; 570 571 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 572 573 switch (USB_GET_STATE(xfer)) { 574 case USB_ST_TRANSFERRED: 575 case USB_ST_SETUP: 576 tr_setup: 577 offset = 0; 578 for (n = 0; n != xfer->nframes; n++) { 579 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 580 xfer->max_frame_size, &actlen, 1)) { 581 usbd_xfer_set_frame_len(xfer, n, actlen); 582 offset += actlen; 583 } else { 584 break; 585 } 586 } 587 588 for (; n != xfer->nframes; n++) { 589 /* fill in zero frames */ 590 usbd_xfer_set_frame_len(xfer, n, 0); 591 } 592 usbd_transfer_submit(xfer); 593 break; 594 595 default: /* Error */ 596 if (xfer->error == USB_ERR_CANCELLED) { 597 break; 598 } 599 goto tr_setup; 600 } 601 } 602 603 static int 604 ugen_set_config(struct usb_fifo *f, uint8_t index) 605 { 606 DPRINTFN(2, "index %u\n", index); 607 608 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 609 /* not possible in device side mode */ 610 return (ENOTTY); 611 } 612 if (f->udev->curr_config_index == index) { 613 /* no change needed */ 614 return (0); 615 } 616 /* make sure all FIFO's are gone */ 617 /* else there can be a deadlock */ 618 if (ugen_fs_uninit(f)) { 619 /* ignore any errors */ 620 DPRINTFN(6, "no FIFOs\n"); 621 } 622 /* change setting - will free generic FIFOs, if any */ 623 if (usbd_set_config_index(f->udev, index)) { 624 return (EIO); 625 } 626 /* probe and attach */ 627 if (usb_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) { 628 return (EIO); 629 } 630 return (0); 631 } 632 633 static int 634 ugen_set_interface(struct usb_fifo *f, 635 uint8_t iface_index, uint8_t alt_index) 636 { 637 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 638 639 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 640 /* not possible in device side mode */ 641 return (ENOTTY); 642 } 643 /* make sure all FIFO's are gone */ 644 /* else there can be a deadlock */ 645 if (ugen_fs_uninit(f)) { 646 /* ignore any errors */ 647 DPRINTFN(6, "no FIFOs\n"); 648 } 649 /* change setting - will free generic FIFOs, if any */ 650 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 651 return (EIO); 652 } 653 /* probe and attach */ 654 if (usb_probe_and_attach(f->udev, iface_index)) { 655 return (EIO); 656 } 657 return (0); 658 } 659 660 /*------------------------------------------------------------------------* 661 * ugen_get_cdesc 662 * 663 * This function will retrieve the complete configuration descriptor 664 * at the given index. 665 *------------------------------------------------------------------------*/ 666 static int 667 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 668 { 669 struct usb_config_descriptor *cdesc; 670 struct usb_device *udev = f->udev; 671 int error; 672 uint16_t len; 673 uint8_t free_data; 674 675 DPRINTFN(6, "\n"); 676 677 if (ugd->ugd_data == NULL) { 678 /* userland pointer should not be zero */ 679 return (EINVAL); 680 } 681 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 682 (ugd->ugd_config_index == udev->curr_config_index)) { 683 cdesc = usbd_get_config_descriptor(udev); 684 if (cdesc == NULL) { 685 return (ENXIO); 686 } 687 free_data = 0; 688 689 } else { 690 if (usbd_req_get_config_desc_full(udev, 691 NULL, &cdesc, M_USBDEV, 692 ugd->ugd_config_index)) { 693 return (ENXIO); 694 } 695 free_data = 1; 696 } 697 698 len = UGETW(cdesc->wTotalLength); 699 if (len > ugd->ugd_maxlen) { 700 len = ugd->ugd_maxlen; 701 } 702 DPRINTFN(6, "len=%u\n", len); 703 704 ugd->ugd_actlen = len; 705 ugd->ugd_offset = 0; 706 707 error = copyout(cdesc, ugd->ugd_data, len); 708 709 if (free_data) { 710 kfree(cdesc, M_USBDEV); 711 } 712 return (error); 713 } 714 715 static int 716 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 717 { 718 void *ptr = f->udev->bus->scratch[0].data; 719 uint16_t size = sizeof(f->udev->bus->scratch[0].data); 720 int error; 721 722 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 723 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 724 error = EINVAL; 725 } else { 726 727 if (size > ((uint8_t *)ptr)[0]) { 728 size = ((uint8_t *)ptr)[0]; 729 } 730 if (size > ugd->ugd_maxlen) { 731 size = ugd->ugd_maxlen; 732 } 733 ugd->ugd_actlen = size; 734 ugd->ugd_offset = 0; 735 736 error = copyout(ptr, ugd->ugd_data, size); 737 } 738 return (error); 739 } 740 741 /*------------------------------------------------------------------------* 742 * ugen_get_iface_driver 743 * 744 * This function generates an USB interface description for userland. 745 * 746 * Returns: 747 * 0: Success 748 * Else: Failure 749 *------------------------------------------------------------------------*/ 750 static int 751 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 752 { 753 struct usb_device *udev = f->udev; 754 struct usb_interface *iface; 755 const char *ptr; 756 const char *desc; 757 unsigned int len; 758 unsigned int maxlen; 759 char buf[128]; 760 int error; 761 762 DPRINTFN(6, "\n"); 763 764 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 765 /* userland pointer should not be zero */ 766 return (EINVAL); 767 } 768 769 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 770 if ((iface == NULL) || (iface->idesc == NULL)) { 771 /* invalid interface index */ 772 return (EINVAL); 773 } 774 775 /* read out device nameunit string, if any */ 776 if ((iface->subdev != NULL) && 777 device_is_attached(iface->subdev) && 778 (ptr = device_get_nameunit(iface->subdev)) && 779 (desc = device_get_desc(iface->subdev))) { 780 781 /* print description */ 782 ksnprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 783 784 /* range checks */ 785 maxlen = ugd->ugd_maxlen - 1; 786 len = strlen(buf); 787 if (len > maxlen) 788 len = maxlen; 789 790 /* update actual length, including terminating zero */ 791 ugd->ugd_actlen = len + 1; 792 793 /* copy out interface description */ 794 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 795 } else { 796 /* zero length string is default */ 797 error = copyout("", ugd->ugd_data, 1); 798 } 799 return (error); 800 } 801 802 /*------------------------------------------------------------------------* 803 * usb_gen_fill_deviceinfo 804 * 805 * This function dumps information about an USB device to the 806 * structure pointed to by the "di" argument. 807 * 808 * Returns: 809 * 0: Success 810 * Else: Failure 811 *------------------------------------------------------------------------*/ 812 static int 813 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 814 { 815 struct usb_device *udev; 816 struct usb_device *hub; 817 818 udev = f->udev; 819 820 bzero(di, sizeof(di[0])); 821 822 di->udi_bus = device_get_unit(udev->bus->bdev); 823 di->udi_addr = udev->address; 824 di->udi_index = udev->device_index; 825 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 826 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 827 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 828 usb_printbcd(di->udi_release, sizeof(di->udi_release), 829 UGETW(udev->ddesc.bcdDevice)); 830 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 831 di->udi_productNo = UGETW(udev->ddesc.idProduct); 832 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 833 di->udi_class = udev->ddesc.bDeviceClass; 834 di->udi_subclass = udev->ddesc.bDeviceSubClass; 835 di->udi_protocol = udev->ddesc.bDeviceProtocol; 836 di->udi_config_no = udev->curr_config_no; 837 di->udi_config_index = udev->curr_config_index; 838 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 839 di->udi_speed = udev->speed; 840 di->udi_mode = udev->flags.usb_mode; 841 di->udi_power_mode = udev->power_mode; 842 di->udi_suspended = udev->flags.peer_suspended; 843 844 hub = udev->parent_hub; 845 if (hub) { 846 di->udi_hubaddr = hub->address; 847 di->udi_hubindex = hub->device_index; 848 di->udi_hubport = udev->port_no; 849 } 850 return (0); 851 } 852 853 /*------------------------------------------------------------------------* 854 * ugen_check_request 855 * 856 * Return values: 857 * 0: Access allowed 858 * Else: No access 859 *------------------------------------------------------------------------*/ 860 static int 861 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 862 { 863 struct usb_endpoint *ep; 864 int error; 865 866 /* 867 * Avoid requests that would damage the bus integrity: 868 */ 869 if (((req->bmRequestType == UT_WRITE_DEVICE) && 870 (req->bRequest == UR_SET_ADDRESS)) || 871 ((req->bmRequestType == UT_WRITE_DEVICE) && 872 (req->bRequest == UR_SET_CONFIG)) || 873 ((req->bmRequestType == UT_WRITE_INTERFACE) && 874 (req->bRequest == UR_SET_INTERFACE))) { 875 /* 876 * These requests can be useful for testing USB drivers. 877 */ 878 error = priv_check(curthread, PRIV_DRIVER); 879 if (error) { 880 return (error); 881 } 882 } 883 /* 884 * Special case - handle clearing of stall 885 */ 886 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 887 888 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 889 if (ep == NULL) { 890 return (EINVAL); 891 } 892 if ((req->bRequest == UR_CLEAR_FEATURE) && 893 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 894 usbd_clear_data_toggle(udev, ep); 895 } 896 } 897 /* TODO: add more checks to verify the interface index */ 898 899 return (0); 900 } 901 902 int 903 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 904 { 905 int error; 906 uint16_t len; 907 uint16_t actlen; 908 909 if (ugen_check_request(f->udev, &ur->ucr_request)) { 910 return (EPERM); 911 } 912 len = UGETW(ur->ucr_request.wLength); 913 914 /* check if "ucr_data" is valid */ 915 if (len != 0) { 916 if (ur->ucr_data == NULL) { 917 return (EFAULT); 918 } 919 } 920 /* do the USB request */ 921 error = usbd_do_request_flags 922 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 923 (ur->ucr_flags & USB_SHORT_XFER_OK) | 924 USB_USER_DATA_PTR, &actlen, 925 USB_DEFAULT_TIMEOUT); 926 927 ur->ucr_actlen = actlen; 928 929 if (error) { 930 error = EIO; 931 } 932 return (error); 933 } 934 935 /*------------------------------------------------------------------------ 936 * ugen_re_enumerate 937 *------------------------------------------------------------------------*/ 938 static int 939 ugen_re_enumerate(struct usb_fifo *f) 940 { 941 struct usb_device *udev = f->udev; 942 int error; 943 944 /* 945 * This request can be useful for testing USB drivers: 946 */ 947 error = priv_check(curthread, PRIV_DRIVER); 948 if (error) { 949 return (error); 950 } 951 if (udev->flags.usb_mode != USB_MODE_HOST) { 952 /* not possible in device side mode */ 953 DPRINTFN(6, "device mode\n"); 954 return (ENOTTY); 955 } 956 if (udev->parent_hub == NULL) { 957 /* the root HUB cannot be re-enumerated */ 958 DPRINTFN(6, "cannot reset root HUB\n"); 959 return (EINVAL); 960 } 961 /* make sure all FIFO's are gone */ 962 /* else there can be a deadlock */ 963 if (ugen_fs_uninit(f)) { 964 /* ignore any errors */ 965 DPRINTFN(6, "no FIFOs\n"); 966 } 967 /* start re-enumeration of device */ 968 usbd_start_re_enumerate(udev); 969 return (0); 970 } 971 972 int 973 ugen_fs_uninit(struct usb_fifo *f) 974 { 975 if (f->fs_xfer == NULL) { 976 return (EINVAL); 977 } 978 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 979 kfree(f->fs_xfer, M_USB); 980 f->fs_xfer = NULL; 981 f->fs_ep_max = 0; 982 f->fs_ep_ptr = NULL; 983 f->flag_iscomplete = 0; 984 usb_fifo_free_buffer(f); 985 return (0); 986 } 987 988 static uint8_t 989 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 990 { 991 struct usb_mbuf *m; 992 993 USB_IF_DEQUEUE(&f->used_q, m); 994 995 if (m) { 996 *pindex = *((uint8_t *)(m->cur_data_ptr)); 997 998 USB_IF_ENQUEUE(&f->free_q, m); 999 1000 return (0); /* success */ 1001 } else { 1002 1003 *pindex = 0; /* fix compiler warning */ 1004 1005 f->flag_iscomplete = 0; 1006 } 1007 return (1); /* failure */ 1008 } 1009 1010 static void 1011 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1012 { 1013 struct usb_mbuf *m; 1014 1015 USB_IF_DEQUEUE(&f->free_q, m); 1016 1017 if (m == NULL) { 1018 /* can happen during close */ 1019 DPRINTF("out of buffers\n"); 1020 return; 1021 } 1022 USB_MBUF_RESET(m); 1023 1024 *((uint8_t *)(m->cur_data_ptr)) = index; 1025 1026 USB_IF_ENQUEUE(&f->used_q, m); 1027 1028 f->flag_iscomplete = 1; 1029 1030 usb_fifo_wakeup(f); 1031 } 1032 1033 static int 1034 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1035 { 1036 struct usb_device_request *req; 1037 struct usb_xfer *xfer; 1038 struct usb_fs_endpoint fs_ep; 1039 void *uaddr; /* userland pointer */ 1040 void *kaddr; 1041 usb_frlength_t offset; 1042 usb_frlength_t rem; 1043 usb_frcount_t n; 1044 uint32_t length; 1045 int error; 1046 uint8_t isread; 1047 1048 if (ep_index >= f->fs_ep_max) { 1049 return (EINVAL); 1050 } 1051 xfer = f->fs_xfer[ep_index]; 1052 if (xfer == NULL) { 1053 return (EINVAL); 1054 } 1055 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1056 if (usbd_transfer_pending(xfer)) { 1057 lockmgr(f->priv_lock, LK_RELEASE); 1058 return (EBUSY); /* should not happen */ 1059 } 1060 lockmgr(f->priv_lock, LK_RELEASE); 1061 1062 error = copyin(f->fs_ep_ptr + 1063 ep_index, &fs_ep, sizeof(fs_ep)); 1064 if (error) { 1065 return (error); 1066 } 1067 /* security checks */ 1068 1069 if (fs_ep.nFrames > xfer->max_frame_count) { 1070 xfer->error = USB_ERR_INVAL; 1071 goto complete; 1072 } 1073 if (fs_ep.nFrames == 0) { 1074 xfer->error = USB_ERR_INVAL; 1075 goto complete; 1076 } 1077 error = copyin(fs_ep.ppBuffer, 1078 &uaddr, sizeof(uaddr)); 1079 if (error) { 1080 return (error); 1081 } 1082 /* reset first frame */ 1083 usbd_xfer_set_frame_offset(xfer, 0, 0); 1084 1085 if (xfer->flags_int.control_xfr) { 1086 1087 req = xfer->frbuffers[0].buffer; 1088 1089 error = copyin(fs_ep.pLength, 1090 &length, sizeof(length)); 1091 if (error) { 1092 return (error); 1093 } 1094 if (length != sizeof(*req)) { 1095 xfer->error = USB_ERR_INVAL; 1096 goto complete; 1097 } 1098 if (length != 0) { 1099 error = copyin(uaddr, req, length); 1100 if (error) { 1101 return (error); 1102 } 1103 } 1104 if (ugen_check_request(f->udev, req)) { 1105 xfer->error = USB_ERR_INVAL; 1106 goto complete; 1107 } 1108 usbd_xfer_set_frame_len(xfer, 0, length); 1109 1110 /* Host mode only ! */ 1111 if ((req->bmRequestType & 1112 (UT_READ | UT_WRITE)) == UT_READ) { 1113 isread = 1; 1114 } else { 1115 isread = 0; 1116 } 1117 n = 1; 1118 offset = sizeof(*req); 1119 1120 } else { 1121 /* Device and Host mode */ 1122 if (USB_GET_DATA_ISREAD(xfer)) { 1123 isread = 1; 1124 } else { 1125 isread = 0; 1126 } 1127 n = 0; 1128 offset = 0; 1129 } 1130 1131 rem = usbd_xfer_max_len(xfer); 1132 xfer->nframes = fs_ep.nFrames; 1133 xfer->timeout = fs_ep.timeout; 1134 if (xfer->timeout > 65535) { 1135 xfer->timeout = 65535; 1136 } 1137 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1138 xfer->flags.short_xfer_ok = 1; 1139 else 1140 xfer->flags.short_xfer_ok = 0; 1141 1142 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1143 xfer->flags.short_frames_ok = 1; 1144 else 1145 xfer->flags.short_frames_ok = 0; 1146 1147 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1148 xfer->flags.force_short_xfer = 1; 1149 else 1150 xfer->flags.force_short_xfer = 0; 1151 1152 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1153 usbd_xfer_set_stall(xfer); 1154 else 1155 xfer->flags.stall_pipe = 0; 1156 1157 for (; n != xfer->nframes; n++) { 1158 1159 error = copyin(fs_ep.pLength + n, 1160 &length, sizeof(length)); 1161 if (error) { 1162 break; 1163 } 1164 usbd_xfer_set_frame_len(xfer, n, length); 1165 1166 if (length > rem) { 1167 xfer->error = USB_ERR_INVAL; 1168 goto complete; 1169 } 1170 rem -= length; 1171 1172 if (!isread) { 1173 1174 /* we need to know the source buffer */ 1175 error = copyin(fs_ep.ppBuffer + n, 1176 &uaddr, sizeof(uaddr)); 1177 if (error) { 1178 break; 1179 } 1180 if (xfer->flags_int.isochronous_xfr) { 1181 /* get kernel buffer address */ 1182 kaddr = xfer->frbuffers[0].buffer; 1183 kaddr = USB_ADD_BYTES(kaddr, offset); 1184 } else { 1185 /* set current frame offset */ 1186 usbd_xfer_set_frame_offset(xfer, offset, n); 1187 1188 /* get kernel buffer address */ 1189 kaddr = xfer->frbuffers[n].buffer; 1190 } 1191 1192 /* move data */ 1193 error = copyin(uaddr, kaddr, length); 1194 if (error) { 1195 break; 1196 } 1197 } 1198 offset += length; 1199 } 1200 return (error); 1201 1202 complete: 1203 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1204 ugen_fs_set_complete(f, ep_index); 1205 lockmgr(f->priv_lock, LK_RELEASE); 1206 return (0); 1207 } 1208 1209 static int 1210 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1211 { 1212 struct usb_device_request *req; 1213 struct usb_xfer *xfer; 1214 struct usb_fs_endpoint fs_ep; 1215 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1216 void *uaddr; /* userland ptr */ 1217 void *kaddr; 1218 usb_frlength_t offset; 1219 usb_frlength_t rem; 1220 usb_frcount_t n; 1221 uint32_t length; 1222 uint32_t temp; 1223 int error; 1224 uint8_t isread; 1225 1226 if (ep_index >= f->fs_ep_max) 1227 return (EINVAL); 1228 1229 xfer = f->fs_xfer[ep_index]; 1230 if (xfer == NULL) 1231 return (EINVAL); 1232 1233 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1234 if (usbd_transfer_pending(xfer)) { 1235 lockmgr(f->priv_lock, LK_RELEASE); 1236 return (EBUSY); /* should not happen */ 1237 } 1238 lockmgr(f->priv_lock, LK_RELEASE); 1239 1240 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1241 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1242 if (error) { 1243 return (error); 1244 } 1245 fs_ep.status = xfer->error; 1246 fs_ep.aFrames = xfer->aframes; 1247 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1248 if (xfer->error) { 1249 goto complete; 1250 } 1251 if (xfer->flags_int.control_xfr) { 1252 req = xfer->frbuffers[0].buffer; 1253 1254 /* Host mode only ! */ 1255 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1256 isread = 1; 1257 } else { 1258 isread = 0; 1259 } 1260 if (xfer->nframes == 0) 1261 n = 0; /* should never happen */ 1262 else 1263 n = 1; 1264 } else { 1265 /* Device and Host mode */ 1266 if (USB_GET_DATA_ISREAD(xfer)) { 1267 isread = 1; 1268 } else { 1269 isread = 0; 1270 } 1271 n = 0; 1272 } 1273 1274 /* Update lengths and copy out data */ 1275 1276 rem = usbd_xfer_max_len(xfer); 1277 offset = 0; 1278 1279 for (; n != xfer->nframes; n++) { 1280 1281 /* get initial length into "temp" */ 1282 error = copyin(fs_ep.pLength + n, 1283 &temp, sizeof(temp)); 1284 if (error) { 1285 return (error); 1286 } 1287 if (temp > rem) { 1288 /* the userland length has been corrupted */ 1289 DPRINTF("corrupt userland length " 1290 "%u > %u\n", temp, rem); 1291 fs_ep.status = USB_ERR_INVAL; 1292 goto complete; 1293 } 1294 rem -= temp; 1295 1296 /* get actual transfer length */ 1297 length = xfer->frlengths[n]; 1298 if (length > temp) { 1299 /* data overflow */ 1300 fs_ep.status = USB_ERR_INVAL; 1301 DPRINTF("data overflow %u > %u\n", 1302 length, temp); 1303 goto complete; 1304 } 1305 if (isread) { 1306 1307 /* we need to know the destination buffer */ 1308 error = copyin(fs_ep.ppBuffer + n, 1309 &uaddr, sizeof(uaddr)); 1310 if (error) { 1311 return (error); 1312 } 1313 if (xfer->flags_int.isochronous_xfr) { 1314 /* only one frame buffer */ 1315 kaddr = USB_ADD_BYTES( 1316 xfer->frbuffers[0].buffer, offset); 1317 } else { 1318 /* multiple frame buffers */ 1319 kaddr = xfer->frbuffers[n].buffer; 1320 } 1321 1322 /* move data */ 1323 error = copyout(kaddr, uaddr, length); 1324 if (error) { 1325 return (error); 1326 } 1327 } 1328 /* 1329 * Update offset according to initial length, which is 1330 * needed by isochronous transfers! 1331 */ 1332 offset += temp; 1333 1334 /* update length */ 1335 error = copyout(&length, 1336 fs_ep.pLength + n, sizeof(length)); 1337 if (error) { 1338 return (error); 1339 } 1340 } 1341 1342 complete: 1343 /* update "aFrames" */ 1344 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1345 sizeof(fs_ep.aFrames)); 1346 if (error) 1347 goto done; 1348 1349 /* update "isoc_time_complete" */ 1350 error = copyout(&fs_ep.isoc_time_complete, 1351 &fs_ep_uptr->isoc_time_complete, 1352 sizeof(fs_ep.isoc_time_complete)); 1353 if (error) 1354 goto done; 1355 /* update "status" */ 1356 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1357 sizeof(fs_ep.status)); 1358 done: 1359 return (error); 1360 } 1361 1362 static uint8_t 1363 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1364 { 1365 struct usb_fifo *f_rx; 1366 struct usb_fifo *f_tx; 1367 1368 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1369 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1370 1371 if ((fflags & FREAD) && f_rx && 1372 (f_rx->xfer[0] || f_rx->xfer[1])) { 1373 return (1); /* RX FIFO in use */ 1374 } 1375 if ((fflags & FWRITE) && f_tx && 1376 (f_tx->xfer[0] || f_tx->xfer[1])) { 1377 return (1); /* TX FIFO in use */ 1378 } 1379 return (0); /* not in use */ 1380 } 1381 1382 static int 1383 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1384 { 1385 struct usb_config usb_config[1]; 1386 struct usb_device_request req; 1387 union { 1388 struct usb_fs_complete *pcomp; 1389 struct usb_fs_start *pstart; 1390 struct usb_fs_stop *pstop; 1391 struct usb_fs_open *popen; 1392 struct usb_fs_close *pclose; 1393 struct usb_fs_clear_stall_sync *pstall; 1394 void *addr; 1395 } u; 1396 struct usb_endpoint *ep; 1397 struct usb_endpoint_descriptor *ed; 1398 struct usb_xfer *xfer; 1399 int error = 0; 1400 uint8_t iface_index; 1401 uint8_t isread; 1402 uint8_t ep_index; 1403 uint8_t pre_scale; 1404 1405 u.addr = addr; 1406 1407 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1408 1409 switch (cmd) { 1410 case USB_FS_COMPLETE: 1411 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1412 error = ugen_fs_get_complete(f, &ep_index); 1413 lockmgr(f->priv_lock, LK_RELEASE); 1414 1415 if (error) { 1416 error = EBUSY; 1417 break; 1418 } 1419 u.pcomp->ep_index = ep_index; 1420 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1421 break; 1422 1423 case USB_FS_START: 1424 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1425 if (error) 1426 break; 1427 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1428 xfer = f->fs_xfer[u.pstart->ep_index]; 1429 usbd_transfer_start(xfer); 1430 lockmgr(f->priv_lock, LK_RELEASE); 1431 break; 1432 1433 case USB_FS_STOP: 1434 if (u.pstop->ep_index >= f->fs_ep_max) { 1435 error = EINVAL; 1436 break; 1437 } 1438 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1439 xfer = f->fs_xfer[u.pstart->ep_index]; 1440 if (usbd_transfer_pending(xfer)) { 1441 usbd_transfer_stop(xfer); 1442 /* 1443 * Check if the USB transfer was stopped 1444 * before it was even started. Else a cancel 1445 * callback will be pending. 1446 */ 1447 if (!xfer->flags_int.transferring) { 1448 ugen_fs_set_complete(xfer->priv_sc, 1449 USB_P2U(xfer->priv_fifo)); 1450 } 1451 } 1452 lockmgr(f->priv_lock, LK_RELEASE); 1453 break; 1454 1455 case USB_FS_OPEN: 1456 if (u.popen->ep_index >= f->fs_ep_max) { 1457 error = EINVAL; 1458 break; 1459 } 1460 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1461 error = EBUSY; 1462 break; 1463 } 1464 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1465 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1466 } 1467 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1468 pre_scale = 1; 1469 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1470 } else { 1471 pre_scale = 0; 1472 } 1473 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1474 u.popen->max_frames = USB_FS_MAX_FRAMES; 1475 break; 1476 } 1477 if (u.popen->max_frames == 0) { 1478 error = EINVAL; 1479 break; 1480 } 1481 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1482 if (ep == NULL) { 1483 error = EINVAL; 1484 break; 1485 } 1486 ed = ep->edesc; 1487 if (ed == NULL) { 1488 error = ENXIO; 1489 break; 1490 } 1491 iface_index = ep->iface_index; 1492 1493 memset(usb_config, 0, sizeof(usb_config)); 1494 1495 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1496 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1497 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1498 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1499 usb_config[0].flags.proxy_buffer = 1; 1500 if (pre_scale != 0) 1501 usb_config[0].flags.pre_scale_frames = 1; 1502 usb_config[0].callback = &ugen_ctrl_fs_callback; 1503 usb_config[0].timeout = 0; /* no timeout */ 1504 usb_config[0].frames = u.popen->max_frames; 1505 usb_config[0].bufsize = u.popen->max_bufsize; 1506 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1507 1508 if (usb_config[0].type == UE_CONTROL) { 1509 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1510 error = EINVAL; 1511 break; 1512 } 1513 } else { 1514 1515 isread = ((usb_config[0].endpoint & 1516 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1517 1518 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1519 isread = !isread; 1520 } 1521 /* check permissions */ 1522 if (isread) { 1523 if (!(fflags & FREAD)) { 1524 error = EPERM; 1525 break; 1526 } 1527 } else { 1528 if (!(fflags & FWRITE)) { 1529 error = EPERM; 1530 break; 1531 } 1532 } 1533 } 1534 error = usbd_transfer_setup(f->udev, &iface_index, 1535 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1536 f, f->priv_lock); 1537 if (error == 0) { 1538 /* update maximums */ 1539 u.popen->max_packet_length = 1540 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1541 u.popen->max_bufsize = 1542 f->fs_xfer[u.popen->ep_index]->max_data_length; 1543 /* update number of frames */ 1544 u.popen->max_frames = 1545 f->fs_xfer[u.popen->ep_index]->nframes; 1546 /* store index of endpoint */ 1547 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1548 ((uint8_t *)0) + u.popen->ep_index; 1549 } else { 1550 error = ENOMEM; 1551 } 1552 break; 1553 1554 case USB_FS_CLOSE: 1555 if (u.pclose->ep_index >= f->fs_ep_max) { 1556 error = EINVAL; 1557 break; 1558 } 1559 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1560 error = EINVAL; 1561 break; 1562 } 1563 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1564 break; 1565 1566 case USB_FS_CLEAR_STALL_SYNC: 1567 if (u.pstall->ep_index >= f->fs_ep_max) { 1568 error = EINVAL; 1569 break; 1570 } 1571 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1572 error = EINVAL; 1573 break; 1574 } 1575 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1576 error = EINVAL; 1577 break; 1578 } 1579 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1580 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1581 lockmgr(f->priv_lock, LK_RELEASE); 1582 1583 if (error) { 1584 return (EBUSY); 1585 } 1586 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1587 1588 /* setup a clear-stall packet */ 1589 req.bmRequestType = UT_WRITE_ENDPOINT; 1590 req.bRequest = UR_CLEAR_FEATURE; 1591 USETW(req.wValue, UF_ENDPOINT_HALT); 1592 req.wIndex[0] = ep->edesc->bEndpointAddress; 1593 req.wIndex[1] = 0; 1594 USETW(req.wLength, 0); 1595 1596 error = usbd_do_request(f->udev, NULL, &req, NULL); 1597 if (error == 0) { 1598 usbd_clear_data_toggle(f->udev, ep); 1599 } else { 1600 error = ENXIO; 1601 } 1602 break; 1603 1604 default: 1605 error = ENOIOCTL; 1606 break; 1607 } 1608 1609 DPRINTFN(6, "error=%d\n", error); 1610 1611 return (error); 1612 } 1613 1614 static int 1615 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1616 { 1617 uint8_t t; 1618 1619 if (*(int *)addr) 1620 t = 1; 1621 else 1622 t = 0; 1623 1624 if (f->flag_short == t) { 1625 /* same value like before - accept */ 1626 return (0); 1627 } 1628 if (f->xfer[0] || f->xfer[1]) { 1629 /* cannot change this during transfer */ 1630 return (EBUSY); 1631 } 1632 f->flag_short = t; 1633 return (0); 1634 } 1635 1636 static int 1637 ugen_set_timeout(struct usb_fifo *f, void *addr) 1638 { 1639 f->timeout = *(int *)addr; 1640 if (f->timeout > 65535) { 1641 /* limit user input */ 1642 f->timeout = 65535; 1643 } 1644 return (0); 1645 } 1646 1647 static int 1648 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1649 { 1650 if (f->xfer[0]) { 1651 *(int *)addr = f->xfer[0]->max_frame_size; 1652 } else { 1653 return (EINVAL); 1654 } 1655 return (0); 1656 } 1657 1658 static int 1659 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1660 { 1661 usb_frlength_t t; 1662 1663 if (*(int *)addr < 0) 1664 t = 0; /* use "wMaxPacketSize" */ 1665 else if (*(int *)addr < (256 * 1024)) 1666 t = *(int *)addr; 1667 else 1668 t = 256 * 1024; 1669 1670 if (f->bufsize == t) { 1671 /* same value like before - accept */ 1672 return (0); 1673 } 1674 if (f->xfer[0] || f->xfer[1]) { 1675 /* cannot change this during transfer */ 1676 return (EBUSY); 1677 } 1678 f->bufsize = t; 1679 return (0); 1680 } 1681 1682 static int 1683 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1684 { 1685 *(int *)addr = f->bufsize; 1686 return (0); 1687 } 1688 1689 static int 1690 ugen_get_iface_desc(struct usb_fifo *f, 1691 struct usb_interface_descriptor *idesc) 1692 { 1693 struct usb_interface *iface; 1694 1695 iface = usbd_get_iface(f->udev, f->iface_index); 1696 if (iface && iface->idesc) { 1697 *idesc = *(iface->idesc); 1698 } else { 1699 return (EIO); 1700 } 1701 return (0); 1702 } 1703 1704 static int 1705 ugen_get_endpoint_desc(struct usb_fifo *f, 1706 struct usb_endpoint_descriptor *ed) 1707 { 1708 struct usb_endpoint *ep; 1709 1710 ep = usb_fifo_softc(f); 1711 1712 if (ep && ep->edesc) { 1713 *ed = *ep->edesc; 1714 } else { 1715 return (EINVAL); 1716 } 1717 return (0); 1718 } 1719 1720 static int 1721 ugen_set_power_mode(struct usb_fifo *f, int mode) 1722 { 1723 struct usb_device *udev = f->udev; 1724 int err; 1725 uint8_t old_mode; 1726 1727 if ((udev == NULL) || 1728 (udev->parent_hub == NULL)) { 1729 return (EINVAL); 1730 } 1731 err = priv_check(curthread, PRIV_DRIVER); 1732 if (err) 1733 return (err); 1734 1735 /* get old power mode */ 1736 old_mode = udev->power_mode; 1737 1738 /* if no change, then just return */ 1739 if (old_mode == mode) 1740 return (0); 1741 1742 switch (mode) { 1743 case USB_POWER_MODE_OFF: 1744 /* get the device unconfigured */ 1745 err = ugen_set_config(f, USB_UNCONFIG_INDEX); 1746 if (err) { 1747 DPRINTFN(0, "Could not unconfigure " 1748 "device (ignored)\n"); 1749 } 1750 1751 /* clear port enable */ 1752 err = usbd_req_clear_port_feature(udev->parent_hub, 1753 NULL, udev->port_no, UHF_PORT_ENABLE); 1754 break; 1755 1756 case USB_POWER_MODE_ON: 1757 case USB_POWER_MODE_SAVE: 1758 break; 1759 1760 case USB_POWER_MODE_RESUME: 1761 #if USB_HAVE_POWERD 1762 /* let USB-powerd handle resume */ 1763 USB_BUS_LOCK(udev->bus); 1764 udev->pwr_save.write_refs++; 1765 udev->pwr_save.last_xfer_time = ticks; 1766 USB_BUS_UNLOCK(udev->bus); 1767 1768 /* set new power mode */ 1769 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1770 1771 /* wait for resume to complete */ 1772 usb_pause_mtx(NULL, hz / 4); 1773 1774 /* clear write reference */ 1775 USB_BUS_LOCK(udev->bus); 1776 udev->pwr_save.write_refs--; 1777 USB_BUS_UNLOCK(udev->bus); 1778 #endif 1779 mode = USB_POWER_MODE_SAVE; 1780 break; 1781 1782 case USB_POWER_MODE_SUSPEND: 1783 #if USB_HAVE_POWERD 1784 /* let USB-powerd handle suspend */ 1785 USB_BUS_LOCK(udev->bus); 1786 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1787 USB_BUS_UNLOCK(udev->bus); 1788 #endif 1789 mode = USB_POWER_MODE_SAVE; 1790 break; 1791 1792 default: 1793 return (EINVAL); 1794 } 1795 1796 if (err) 1797 return (ENXIO); /* I/O failure */ 1798 1799 /* if we are powered off we need to re-enumerate first */ 1800 if (old_mode == USB_POWER_MODE_OFF) { 1801 if (udev->flags.usb_mode == USB_MODE_HOST) { 1802 if (udev->re_enumerate_wait == 0) 1803 udev->re_enumerate_wait = 1; 1804 } 1805 /* set power mode will wake up the explore thread */ 1806 } 1807 1808 /* set new power mode */ 1809 usbd_set_power_mode(udev, mode); 1810 1811 return (0); /* success */ 1812 } 1813 1814 static int 1815 ugen_get_power_mode(struct usb_fifo *f) 1816 { 1817 struct usb_device *udev = f->udev; 1818 1819 if (udev == NULL) 1820 return (USB_POWER_MODE_ON); 1821 1822 return (udev->power_mode); 1823 } 1824 1825 static int 1826 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1827 uint8_t set, uint16_t feature) 1828 { 1829 struct usb_device *udev = f->udev; 1830 struct usb_hub *hub; 1831 int err; 1832 1833 err = priv_check(curthread, PRIV_DRIVER); 1834 if (err) { 1835 return (err); 1836 } 1837 if (port_no == 0) { 1838 return (EINVAL); 1839 } 1840 if ((udev == NULL) || 1841 (udev->hub == NULL)) { 1842 return (EINVAL); 1843 } 1844 hub = udev->hub; 1845 1846 if (port_no > hub->nports) { 1847 return (EINVAL); 1848 } 1849 if (set) 1850 err = usbd_req_set_port_feature(udev, 1851 NULL, port_no, feature); 1852 else 1853 err = usbd_req_clear_port_feature(udev, 1854 NULL, port_no, feature); 1855 1856 if (err) 1857 return (ENXIO); /* failure */ 1858 1859 return (0); /* success */ 1860 } 1861 1862 static int 1863 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1864 { 1865 struct usb_fifo *f_rx; 1866 struct usb_fifo *f_tx; 1867 int error = 0; 1868 1869 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1870 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1871 1872 switch (cmd) { 1873 case USB_SET_RX_SHORT_XFER: 1874 if (fflags & FREAD) { 1875 error = ugen_set_short_xfer(f_rx, addr); 1876 } else { 1877 error = EINVAL; 1878 } 1879 break; 1880 1881 case USB_SET_TX_FORCE_SHORT: 1882 if (fflags & FWRITE) { 1883 error = ugen_set_short_xfer(f_tx, addr); 1884 } else { 1885 error = EINVAL; 1886 } 1887 break; 1888 1889 case USB_SET_RX_TIMEOUT: 1890 if (fflags & FREAD) { 1891 error = ugen_set_timeout(f_rx, addr); 1892 } else { 1893 error = EINVAL; 1894 } 1895 break; 1896 1897 case USB_SET_TX_TIMEOUT: 1898 if (fflags & FWRITE) { 1899 error = ugen_set_timeout(f_tx, addr); 1900 } else { 1901 error = EINVAL; 1902 } 1903 break; 1904 1905 case USB_GET_RX_FRAME_SIZE: 1906 if (fflags & FREAD) { 1907 error = ugen_get_frame_size(f_rx, addr); 1908 } else { 1909 error = EINVAL; 1910 } 1911 break; 1912 1913 case USB_GET_TX_FRAME_SIZE: 1914 if (fflags & FWRITE) { 1915 error = ugen_get_frame_size(f_tx, addr); 1916 } else { 1917 error = EINVAL; 1918 } 1919 break; 1920 1921 case USB_SET_RX_BUFFER_SIZE: 1922 if (fflags & FREAD) { 1923 error = ugen_set_buffer_size(f_rx, addr); 1924 } else { 1925 error = EINVAL; 1926 } 1927 break; 1928 1929 case USB_SET_TX_BUFFER_SIZE: 1930 if (fflags & FWRITE) { 1931 error = ugen_set_buffer_size(f_tx, addr); 1932 } else { 1933 error = EINVAL; 1934 } 1935 break; 1936 1937 case USB_GET_RX_BUFFER_SIZE: 1938 if (fflags & FREAD) { 1939 error = ugen_get_buffer_size(f_rx, addr); 1940 } else { 1941 error = EINVAL; 1942 } 1943 break; 1944 1945 case USB_GET_TX_BUFFER_SIZE: 1946 if (fflags & FWRITE) { 1947 error = ugen_get_buffer_size(f_tx, addr); 1948 } else { 1949 error = EINVAL; 1950 } 1951 break; 1952 1953 case USB_GET_RX_INTERFACE_DESC: 1954 if (fflags & FREAD) { 1955 error = ugen_get_iface_desc(f_rx, addr); 1956 } else { 1957 error = EINVAL; 1958 } 1959 break; 1960 1961 case USB_GET_TX_INTERFACE_DESC: 1962 if (fflags & FWRITE) { 1963 error = ugen_get_iface_desc(f_tx, addr); 1964 } else { 1965 error = EINVAL; 1966 } 1967 break; 1968 1969 case USB_GET_RX_ENDPOINT_DESC: 1970 if (fflags & FREAD) { 1971 error = ugen_get_endpoint_desc(f_rx, addr); 1972 } else { 1973 error = EINVAL; 1974 } 1975 break; 1976 1977 case USB_GET_TX_ENDPOINT_DESC: 1978 if (fflags & FWRITE) { 1979 error = ugen_get_endpoint_desc(f_tx, addr); 1980 } else { 1981 error = EINVAL; 1982 } 1983 break; 1984 1985 case USB_SET_RX_STALL_FLAG: 1986 if ((fflags & FREAD) && (*(int *)addr)) { 1987 f_rx->flag_stall = 1; 1988 } 1989 break; 1990 1991 case USB_SET_TX_STALL_FLAG: 1992 if ((fflags & FWRITE) && (*(int *)addr)) { 1993 f_tx->flag_stall = 1; 1994 } 1995 break; 1996 1997 default: 1998 error = ENOIOCTL; 1999 break; 2000 } 2001 return (error); 2002 } 2003 2004 static int 2005 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2006 { 2007 union { 2008 struct usb_interface_descriptor *idesc; 2009 struct usb_alt_interface *ai; 2010 struct usb_device_descriptor *ddesc; 2011 struct usb_config_descriptor *cdesc; 2012 struct usb_device_stats *stat; 2013 struct usb_fs_init *pinit; 2014 struct usb_fs_uninit *puninit; 2015 uint32_t *ptime; 2016 void *addr; 2017 int *pint; 2018 } u; 2019 struct usb_device_descriptor *dtemp; 2020 struct usb_config_descriptor *ctemp; 2021 struct usb_interface *iface; 2022 int error = 0; 2023 uint8_t n; 2024 2025 u.addr = addr; 2026 2027 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2028 2029 switch (cmd) { 2030 case USB_DISCOVER: 2031 usb_needs_explore_all(); 2032 break; 2033 2034 case USB_SETDEBUG: 2035 if (!(fflags & FWRITE)) { 2036 error = EPERM; 2037 break; 2038 } 2039 usb_debug = *(int *)addr; 2040 break; 2041 2042 case USB_GET_CONFIG: 2043 *(int *)addr = f->udev->curr_config_index; 2044 break; 2045 2046 case USB_SET_CONFIG: 2047 if (!(fflags & FWRITE)) { 2048 error = EPERM; 2049 break; 2050 } 2051 error = ugen_set_config(f, *(int *)addr); 2052 break; 2053 2054 case USB_GET_ALTINTERFACE: 2055 iface = usbd_get_iface(f->udev, 2056 u.ai->uai_interface_index); 2057 if (iface && iface->idesc) { 2058 u.ai->uai_alt_index = iface->alt_index; 2059 } else { 2060 error = EINVAL; 2061 } 2062 break; 2063 2064 case USB_SET_ALTINTERFACE: 2065 if (!(fflags & FWRITE)) { 2066 error = EPERM; 2067 break; 2068 } 2069 error = ugen_set_interface(f, 2070 u.ai->uai_interface_index, u.ai->uai_alt_index); 2071 break; 2072 2073 case USB_GET_DEVICE_DESC: 2074 dtemp = usbd_get_device_descriptor(f->udev); 2075 if (!dtemp) { 2076 error = EIO; 2077 break; 2078 } 2079 *u.ddesc = *dtemp; 2080 break; 2081 2082 case USB_GET_CONFIG_DESC: 2083 ctemp = usbd_get_config_descriptor(f->udev); 2084 if (!ctemp) { 2085 error = EIO; 2086 break; 2087 } 2088 *u.cdesc = *ctemp; 2089 break; 2090 2091 case USB_GET_FULL_DESC: 2092 error = ugen_get_cdesc(f, addr); 2093 break; 2094 2095 case USB_GET_STRING_DESC: 2096 error = ugen_get_sdesc(f, addr); 2097 break; 2098 2099 case USB_GET_IFACE_DRIVER: 2100 error = ugen_get_iface_driver(f, addr); 2101 break; 2102 2103 case USB_REQUEST: 2104 case USB_DO_REQUEST: 2105 if (!(fflags & FWRITE)) { 2106 error = EPERM; 2107 break; 2108 } 2109 error = ugen_do_request(f, addr); 2110 break; 2111 2112 case USB_DEVICEINFO: 2113 case USB_GET_DEVICEINFO: 2114 error = usb_gen_fill_deviceinfo(f, addr); 2115 break; 2116 2117 case USB_DEVICESTATS: 2118 for (n = 0; n != 4; n++) { 2119 2120 u.stat->uds_requests_fail[n] = 2121 f->udev->bus->stats_err.uds_requests[n]; 2122 2123 u.stat->uds_requests_ok[n] = 2124 f->udev->bus->stats_ok.uds_requests[n]; 2125 } 2126 break; 2127 2128 case USB_DEVICEENUMERATE: 2129 error = ugen_re_enumerate(f); 2130 break; 2131 2132 case USB_GET_PLUGTIME: 2133 *u.ptime = f->udev->plugtime; 2134 break; 2135 2136 case USB_CLAIM_INTERFACE: 2137 case USB_RELEASE_INTERFACE: 2138 /* TODO */ 2139 break; 2140 2141 case USB_IFACE_DRIVER_ACTIVE: 2142 2143 n = *u.pint & 0xFF; 2144 2145 iface = usbd_get_iface(f->udev, n); 2146 2147 if (iface && iface->subdev) 2148 error = 0; 2149 else 2150 error = ENXIO; 2151 break; 2152 2153 case USB_IFACE_DRIVER_DETACH: 2154 2155 error = priv_check(curthread, PRIV_DRIVER); 2156 2157 if (error) 2158 break; 2159 2160 n = *u.pint & 0xFF; 2161 2162 if (n == USB_IFACE_INDEX_ANY) { 2163 error = EINVAL; 2164 break; 2165 } 2166 2167 usb_detach_device(f->udev, n, 0); 2168 break; 2169 2170 case USB_SET_POWER_MODE: 2171 error = ugen_set_power_mode(f, *u.pint); 2172 break; 2173 2174 case USB_GET_POWER_MODE: 2175 *u.pint = ugen_get_power_mode(f); 2176 break; 2177 2178 case USB_SET_PORT_ENABLE: 2179 error = ugen_do_port_feature(f, 2180 *u.pint, 1, UHF_PORT_ENABLE); 2181 break; 2182 2183 case USB_SET_PORT_DISABLE: 2184 error = ugen_do_port_feature(f, 2185 *u.pint, 0, UHF_PORT_ENABLE); 2186 break; 2187 2188 case USB_FS_INIT: 2189 /* verify input parameters */ 2190 if (u.pinit->pEndpoints == NULL) { 2191 error = EINVAL; 2192 break; 2193 } 2194 if (u.pinit->ep_index_max > 127) { 2195 error = EINVAL; 2196 break; 2197 } 2198 if (u.pinit->ep_index_max == 0) { 2199 error = EINVAL; 2200 break; 2201 } 2202 if (f->fs_xfer != NULL) { 2203 error = EBUSY; 2204 break; 2205 } 2206 if (f->dev_ep_index != 0) { 2207 error = EINVAL; 2208 break; 2209 } 2210 if (ugen_fifo_in_use(f, fflags)) { 2211 error = EBUSY; 2212 break; 2213 } 2214 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2215 if (error) { 2216 break; 2217 } 2218 f->fs_xfer = kmalloc(sizeof(f->fs_xfer[0]) * 2219 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2220 if (f->fs_xfer == NULL) { 2221 usb_fifo_free_buffer(f); 2222 error = ENOMEM; 2223 break; 2224 } 2225 f->fs_ep_max = u.pinit->ep_index_max; 2226 f->fs_ep_ptr = u.pinit->pEndpoints; 2227 break; 2228 2229 case USB_FS_UNINIT: 2230 if (u.puninit->dummy != 0) { 2231 error = EINVAL; 2232 break; 2233 } 2234 error = ugen_fs_uninit(f); 2235 break; 2236 2237 default: 2238 lockmgr(f->priv_lock, LK_EXCLUSIVE); 2239 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2240 lockmgr(f->priv_lock, LK_RELEASE); 2241 break; 2242 } 2243 DPRINTFN(6, "error=%d\n", error); 2244 return (error); 2245 } 2246 2247 static void 2248 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2249 { 2250 ; /* workaround for a bug in "indent" */ 2251 2252 DPRINTF("st=%u alen=%u aframes=%u\n", 2253 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2254 2255 switch (USB_GET_STATE(xfer)) { 2256 case USB_ST_SETUP: 2257 usbd_transfer_submit(xfer); 2258 break; 2259 default: 2260 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2261 break; 2262 } 2263 } 2264 #endif /* USB_HAVE_UGEN */ 2265