1 /* $FreeBSD: head/sys/dev/usb/usb_generic.c 277417 2015-01-20 11:43:16Z hselasky $ */ 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(lockowned(f->priv_lock)); 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].stream_id = 0; /* XXX support more stream ID's */ 255 usb_config[0].direction = UE_DIR_TX; 256 usb_config[0].interval = USB_DEFAULT_INTERVAL; 257 usb_config[0].flags.proxy_buffer = 1; 258 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 259 260 switch (ed->bmAttributes & UE_XFERTYPE) { 261 case UE_INTERRUPT: 262 case UE_BULK: 263 if (f->flag_short) { 264 usb_config[0].flags.force_short_xfer = 1; 265 } 266 usb_config[0].callback = &ugen_ctrl_write_callback; 267 usb_config[0].timeout = f->timeout; 268 usb_config[0].frames = 1; 269 usb_config[0].bufsize = f->bufsize; 270 if (ugen_transfer_setup(f, usb_config, 2)) { 271 return (EIO); 272 } 273 /* first transfer does not clear stall */ 274 f->flag_stall = 0; 275 break; 276 277 case UE_ISOCHRONOUS: 278 usb_config[0].flags.short_xfer_ok = 1; 279 usb_config[0].bufsize = 0; /* use default */ 280 usb_config[0].frames = f->nframes; 281 usb_config[0].callback = &ugen_isoc_write_callback; 282 usb_config[0].timeout = 0; 283 284 /* clone configuration */ 285 usb_config[1] = usb_config[0]; 286 287 if (ugen_transfer_setup(f, usb_config, 2)) { 288 return (EIO); 289 } 290 break; 291 default: 292 return (EINVAL); 293 } 294 return (0); 295 } 296 297 static int 298 ugen_open_pipe_read(struct usb_fifo *f) 299 { 300 struct usb_config usb_config[2]; 301 struct usb_endpoint *ep = usb_fifo_softc(f); 302 struct usb_endpoint_descriptor *ed = ep->edesc; 303 304 KKASSERT(lockowned(f->priv_lock)); 305 306 if (f->xfer[0] || f->xfer[1]) { 307 /* transfers are already opened */ 308 return (0); 309 } 310 memset(usb_config, 0, sizeof(usb_config)); 311 312 usb_config[1].type = UE_CONTROL; 313 usb_config[1].endpoint = 0; 314 usb_config[1].direction = UE_DIR_ANY; 315 usb_config[1].timeout = 1000; /* 1 second */ 316 usb_config[1].interval = 50;/* 50 milliseconds */ 317 usb_config[1].bufsize = sizeof(struct usb_device_request); 318 usb_config[1].callback = &ugen_read_clear_stall_callback; 319 usb_config[1].usb_mode = USB_MODE_HOST; 320 321 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 322 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 323 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 324 usb_config[0].direction = UE_DIR_RX; 325 usb_config[0].interval = USB_DEFAULT_INTERVAL; 326 usb_config[0].flags.proxy_buffer = 1; 327 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 328 329 switch (ed->bmAttributes & UE_XFERTYPE) { 330 case UE_INTERRUPT: 331 case UE_BULK: 332 if (f->flag_short) { 333 usb_config[0].flags.short_xfer_ok = 1; 334 } 335 usb_config[0].timeout = f->timeout; 336 usb_config[0].frames = 1; 337 usb_config[0].callback = &ugen_ctrl_read_callback; 338 usb_config[0].bufsize = f->bufsize; 339 340 if (ugen_transfer_setup(f, usb_config, 2)) { 341 return (EIO); 342 } 343 /* first transfer does not clear stall */ 344 f->flag_stall = 0; 345 break; 346 347 case UE_ISOCHRONOUS: 348 usb_config[0].flags.short_xfer_ok = 1; 349 usb_config[0].bufsize = 0; /* use default */ 350 usb_config[0].frames = f->nframes; 351 usb_config[0].callback = &ugen_isoc_read_callback; 352 usb_config[0].timeout = 0; 353 354 /* clone configuration */ 355 usb_config[1] = usb_config[0]; 356 357 if (ugen_transfer_setup(f, usb_config, 2)) { 358 return (EIO); 359 } 360 break; 361 362 default: 363 return (EINVAL); 364 } 365 return (0); 366 } 367 368 static void 369 ugen_start_read(struct usb_fifo *f) 370 { 371 /* check that pipes are open */ 372 if (ugen_open_pipe_read(f)) { 373 /* signal error */ 374 usb_fifo_put_data_error(f); 375 } 376 /* start transfers */ 377 usbd_transfer_start(f->xfer[0]); 378 usbd_transfer_start(f->xfer[1]); 379 } 380 381 static void 382 ugen_start_write(struct usb_fifo *f) 383 { 384 /* check that pipes are open */ 385 if (ugen_open_pipe_write(f)) { 386 /* signal error */ 387 usb_fifo_get_data_error(f); 388 } 389 /* start transfers */ 390 usbd_transfer_start(f->xfer[0]); 391 usbd_transfer_start(f->xfer[1]); 392 } 393 394 static void 395 ugen_stop_io(struct usb_fifo *f) 396 { 397 /* stop transfers */ 398 usbd_transfer_stop(f->xfer[0]); 399 usbd_transfer_stop(f->xfer[1]); 400 } 401 402 static void 403 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 404 { 405 struct usb_fifo *f = usbd_xfer_softc(xfer); 406 struct usb_mbuf *m; 407 408 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 409 410 switch (USB_GET_STATE(xfer)) { 411 case USB_ST_TRANSFERRED: 412 if (xfer->actlen == 0) { 413 if (f->fifo_zlp != 4) { 414 f->fifo_zlp++; 415 } else { 416 /* 417 * Throttle a little bit we have multiple ZLPs 418 * in a row! 419 */ 420 xfer->interval = 64; /* ms */ 421 } 422 } else { 423 /* clear throttle */ 424 xfer->interval = 0; 425 f->fifo_zlp = 0; 426 } 427 usb_fifo_put_data(f, xfer->frbuffers, 0, 428 xfer->actlen, 1); 429 430 case USB_ST_SETUP: 431 if (f->flag_stall) { 432 usbd_transfer_start(f->xfer[1]); 433 break; 434 } 435 USB_IF_POLL(&f->free_q, m); 436 if (m) { 437 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 438 usbd_transfer_submit(xfer); 439 } 440 break; 441 442 default: /* Error */ 443 if (xfer->error != USB_ERR_CANCELLED) { 444 /* send a zero length packet to userland */ 445 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 446 f->flag_stall = 1; 447 f->fifo_zlp = 0; 448 usbd_transfer_start(f->xfer[1]); 449 } 450 break; 451 } 452 } 453 454 static void 455 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 456 { 457 struct usb_fifo *f = usbd_xfer_softc(xfer); 458 usb_frlength_t actlen; 459 460 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 461 462 switch (USB_GET_STATE(xfer)) { 463 case USB_ST_SETUP: 464 case USB_ST_TRANSFERRED: 465 /* 466 * If writing is in stall, just jump to clear stall 467 * callback and solve the situation. 468 */ 469 if (f->flag_stall) { 470 usbd_transfer_start(f->xfer[1]); 471 break; 472 } 473 /* 474 * Write data, setup and perform hardware transfer. 475 */ 476 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 477 xfer->max_data_length, &actlen, 0)) { 478 usbd_xfer_set_frame_len(xfer, 0, actlen); 479 usbd_transfer_submit(xfer); 480 } 481 break; 482 483 default: /* Error */ 484 if (xfer->error != USB_ERR_CANCELLED) { 485 f->flag_stall = 1; 486 usbd_transfer_start(f->xfer[1]); 487 } 488 break; 489 } 490 } 491 492 static void 493 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 494 { 495 struct usb_fifo *f = usbd_xfer_softc(xfer); 496 struct usb_xfer *xfer_other = f->xfer[0]; 497 498 if (f->flag_stall == 0) { 499 /* nothing to do */ 500 return; 501 } 502 if (usbd_clear_stall_callback(xfer, xfer_other)) { 503 DPRINTFN(5, "f=%p: stall cleared\n", f); 504 f->flag_stall = 0; 505 usbd_transfer_start(xfer_other); 506 } 507 } 508 509 static void 510 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 511 { 512 struct usb_fifo *f = usbd_xfer_softc(xfer); 513 struct usb_xfer *xfer_other = f->xfer[0]; 514 515 if (f->flag_stall == 0) { 516 /* nothing to do */ 517 return; 518 } 519 if (usbd_clear_stall_callback(xfer, xfer_other)) { 520 DPRINTFN(5, "f=%p: stall cleared\n", f); 521 f->flag_stall = 0; 522 usbd_transfer_start(xfer_other); 523 } 524 } 525 526 static void 527 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 528 { 529 struct usb_fifo *f = usbd_xfer_softc(xfer); 530 usb_frlength_t offset; 531 usb_frcount_t n; 532 533 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 534 535 switch (USB_GET_STATE(xfer)) { 536 case USB_ST_TRANSFERRED: 537 538 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 539 540 offset = 0; 541 542 for (n = 0; n != xfer->aframes; n++) { 543 usb_fifo_put_data(f, xfer->frbuffers, offset, 544 xfer->frlengths[n], 1); 545 offset += xfer->max_frame_size; 546 } 547 548 case USB_ST_SETUP: 549 tr_setup: 550 for (n = 0; n != xfer->nframes; n++) { 551 /* setup size for next transfer */ 552 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 553 } 554 usbd_transfer_submit(xfer); 555 break; 556 557 default: /* Error */ 558 if (xfer->error == USB_ERR_CANCELLED) { 559 break; 560 } 561 goto tr_setup; 562 } 563 } 564 565 static void 566 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 567 { 568 struct usb_fifo *f = usbd_xfer_softc(xfer); 569 usb_frlength_t actlen; 570 usb_frlength_t offset; 571 usb_frcount_t n; 572 573 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 574 575 switch (USB_GET_STATE(xfer)) { 576 case USB_ST_TRANSFERRED: 577 case USB_ST_SETUP: 578 tr_setup: 579 offset = 0; 580 for (n = 0; n != xfer->nframes; n++) { 581 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 582 xfer->max_frame_size, &actlen, 1)) { 583 usbd_xfer_set_frame_len(xfer, n, actlen); 584 offset += actlen; 585 } else { 586 break; 587 } 588 } 589 590 for (; n != xfer->nframes; n++) { 591 /* fill in zero frames */ 592 usbd_xfer_set_frame_len(xfer, n, 0); 593 } 594 usbd_transfer_submit(xfer); 595 break; 596 597 default: /* Error */ 598 if (xfer->error == USB_ERR_CANCELLED) { 599 break; 600 } 601 goto tr_setup; 602 } 603 } 604 605 static int 606 ugen_set_config(struct usb_fifo *f, uint8_t index) 607 { 608 DPRINTFN(2, "index %u\n", index); 609 610 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 611 /* not possible in device side mode */ 612 return (ENOTTY); 613 } 614 615 /* make sure all FIFO's are gone */ 616 /* else there can be a deadlock */ 617 if (ugen_fs_uninit(f)) { 618 /* ignore any errors */ 619 DPRINTFN(6, "no FIFOs\n"); 620 } 621 622 if (usbd_start_set_config(f->udev, index) != 0) 623 return (EIO); 624 625 return (0); 626 } 627 628 static int 629 ugen_set_interface(struct usb_fifo *f, 630 uint8_t iface_index, uint8_t alt_index) 631 { 632 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 633 634 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 635 /* not possible in device side mode */ 636 return (ENOTTY); 637 } 638 /* make sure all FIFO's are gone */ 639 /* else there can be a deadlock */ 640 if (ugen_fs_uninit(f)) { 641 /* ignore any errors */ 642 DPRINTFN(6, "no FIFOs\n"); 643 } 644 /* change setting - will free generic FIFOs, if any */ 645 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 646 return (EIO); 647 } 648 /* probe and attach */ 649 if (usb_probe_and_attach(f->udev, iface_index)) { 650 return (EIO); 651 } 652 return (0); 653 } 654 655 /*------------------------------------------------------------------------* 656 * ugen_get_cdesc 657 * 658 * This function will retrieve the complete configuration descriptor 659 * at the given index. 660 *------------------------------------------------------------------------*/ 661 static int 662 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 663 { 664 struct usb_config_descriptor *cdesc; 665 struct usb_device *udev = f->udev; 666 int error; 667 uint16_t len; 668 uint8_t free_data; 669 670 DPRINTFN(6, "\n"); 671 672 if (ugd->ugd_data == NULL) { 673 /* userland pointer should not be zero */ 674 return (EINVAL); 675 } 676 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 677 (ugd->ugd_config_index == udev->curr_config_index)) { 678 cdesc = usbd_get_config_descriptor(udev); 679 if (cdesc == NULL) { 680 return (ENXIO); 681 } 682 free_data = 0; 683 684 } else { 685 #if (USB_HAVE_FIXED_CONFIG == 0) 686 if (usbd_req_get_config_desc_full(udev, 687 NULL, &cdesc, ugd->ugd_config_index)) { 688 return (ENXIO); 689 } 690 free_data = 1; 691 #else 692 /* configuration descriptor data is shared */ 693 return (EINVAL); 694 #endif 695 } 696 697 len = UGETW(cdesc->wTotalLength); 698 if (len > ugd->ugd_maxlen) { 699 len = ugd->ugd_maxlen; 700 } 701 DPRINTFN(6, "len=%u\n", len); 702 703 ugd->ugd_actlen = len; 704 ugd->ugd_offset = 0; 705 706 error = copyout(cdesc, ugd->ugd_data, len); 707 708 if (free_data) 709 usbd_free_config_desc(udev, cdesc); 710 711 return (error); 712 } 713 714 /* 715 * This function is called having the enumeration SX locked which 716 * protects the scratch area used. 717 */ 718 static int 719 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 720 { 721 void *ptr; 722 uint16_t size; 723 int error; 724 725 ptr = f->udev->scratch.data; 726 size = sizeof(f->udev->scratch.data); 727 728 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 729 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 730 error = EINVAL; 731 } else { 732 733 if (size > ((uint8_t *)ptr)[0]) { 734 size = ((uint8_t *)ptr)[0]; 735 } 736 if (size > ugd->ugd_maxlen) { 737 size = ugd->ugd_maxlen; 738 } 739 ugd->ugd_actlen = size; 740 ugd->ugd_offset = 0; 741 742 error = copyout(ptr, ugd->ugd_data, size); 743 } 744 return (error); 745 } 746 747 /*------------------------------------------------------------------------* 748 * ugen_get_iface_driver 749 * 750 * This function generates an USB interface description for userland. 751 * 752 * Returns: 753 * 0: Success 754 * Else: Failure 755 *------------------------------------------------------------------------*/ 756 static int 757 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 758 { 759 struct usb_device *udev = f->udev; 760 struct usb_interface *iface; 761 const char *ptr; 762 const char *desc; 763 unsigned int len; 764 unsigned int maxlen; 765 char buf[128]; 766 int error; 767 768 DPRINTFN(6, "\n"); 769 770 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 771 /* userland pointer should not be zero */ 772 return (EINVAL); 773 } 774 775 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 776 if ((iface == NULL) || (iface->idesc == NULL)) { 777 /* invalid interface index */ 778 return (EINVAL); 779 } 780 781 /* read out device nameunit string, if any */ 782 if ((iface->subdev != NULL) && 783 device_is_attached(iface->subdev) && 784 (ptr = device_get_nameunit(iface->subdev)) && 785 (desc = device_get_desc(iface->subdev))) { 786 787 /* print description */ 788 ksnprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 789 790 /* range checks */ 791 maxlen = ugd->ugd_maxlen - 1; 792 len = strlen(buf); 793 if (len > maxlen) 794 len = maxlen; 795 796 /* update actual length, including terminating zero */ 797 ugd->ugd_actlen = len + 1; 798 799 /* copy out interface description */ 800 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 801 } else { 802 /* zero length string is default */ 803 error = copyout("", ugd->ugd_data, 1); 804 } 805 return (error); 806 } 807 808 /*------------------------------------------------------------------------* 809 * usb_gen_fill_deviceinfo 810 * 811 * This function dumps information about an USB device to the 812 * structure pointed to by the "di" argument. 813 * 814 * Returns: 815 * 0: Success 816 * Else: Failure 817 *------------------------------------------------------------------------*/ 818 static int 819 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 820 { 821 struct usb_device *udev; 822 struct usb_device *hub; 823 824 udev = f->udev; 825 826 bzero(di, sizeof(di[0])); 827 828 di->udi_bus = device_get_unit(udev->bus->bdev); 829 di->udi_addr = udev->address; 830 di->udi_index = udev->device_index; 831 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 832 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 833 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 834 usb_printbcd(di->udi_release, sizeof(di->udi_release), 835 UGETW(udev->ddesc.bcdDevice)); 836 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 837 di->udi_productNo = UGETW(udev->ddesc.idProduct); 838 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 839 di->udi_class = udev->ddesc.bDeviceClass; 840 di->udi_subclass = udev->ddesc.bDeviceSubClass; 841 di->udi_protocol = udev->ddesc.bDeviceProtocol; 842 di->udi_config_no = udev->curr_config_no; 843 di->udi_config_index = udev->curr_config_index; 844 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 845 di->udi_speed = udev->speed; 846 di->udi_mode = udev->flags.usb_mode; 847 di->udi_power_mode = udev->power_mode; 848 di->udi_suspended = udev->flags.peer_suspended; 849 850 hub = udev->parent_hub; 851 if (hub) { 852 di->udi_hubaddr = hub->address; 853 di->udi_hubindex = hub->device_index; 854 di->udi_hubport = udev->port_no; 855 } 856 return (0); 857 } 858 859 /*------------------------------------------------------------------------* 860 * ugen_check_request 861 * 862 * Return values: 863 * 0: Access allowed 864 * Else: No access 865 *------------------------------------------------------------------------*/ 866 static int 867 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 868 { 869 struct usb_endpoint *ep; 870 int error; 871 872 /* 873 * Avoid requests that would damage the bus integrity: 874 */ 875 if (((req->bmRequestType == UT_WRITE_DEVICE) && 876 (req->bRequest == UR_SET_ADDRESS)) || 877 ((req->bmRequestType == UT_WRITE_DEVICE) && 878 (req->bRequest == UR_SET_CONFIG)) || 879 ((req->bmRequestType == UT_WRITE_INTERFACE) && 880 (req->bRequest == UR_SET_INTERFACE))) { 881 /* 882 * These requests can be useful for testing USB drivers. 883 */ 884 error = priv_check(curthread, PRIV_DRIVER); 885 if (error) { 886 return (error); 887 } 888 } 889 /* 890 * Special case - handle clearing of stall 891 */ 892 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 893 894 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 895 if (ep == NULL) { 896 return (EINVAL); 897 } 898 if ((req->bRequest == UR_CLEAR_FEATURE) && 899 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 900 usbd_clear_data_toggle(udev, ep); 901 } 902 } 903 /* TODO: add more checks to verify the interface index */ 904 905 return (0); 906 } 907 908 int 909 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 910 { 911 int error; 912 uint16_t len; 913 uint16_t actlen; 914 915 if (ugen_check_request(f->udev, &ur->ucr_request)) { 916 return (EPERM); 917 } 918 len = UGETW(ur->ucr_request.wLength); 919 920 /* check if "ucr_data" is valid */ 921 if (len != 0) { 922 if (ur->ucr_data == NULL) { 923 return (EFAULT); 924 } 925 } 926 /* do the USB request */ 927 error = usbd_do_request_flags 928 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 929 (ur->ucr_flags & USB_SHORT_XFER_OK) | 930 USB_USER_DATA_PTR, &actlen, 931 USB_DEFAULT_TIMEOUT); 932 933 ur->ucr_actlen = actlen; 934 935 if (error) { 936 error = EIO; 937 } 938 return (error); 939 } 940 941 /*------------------------------------------------------------------------ 942 * ugen_re_enumerate 943 *------------------------------------------------------------------------*/ 944 static int 945 ugen_re_enumerate(struct usb_fifo *f) 946 { 947 struct usb_device *udev = f->udev; 948 int error; 949 950 /* 951 * This request can be useful for testing USB drivers: 952 */ 953 error = priv_check(curthread, PRIV_DRIVER); 954 if (error) { 955 return (error); 956 } 957 if (udev->flags.usb_mode != USB_MODE_HOST) { 958 /* not possible in device side mode */ 959 DPRINTFN(6, "device mode\n"); 960 return (ENOTTY); 961 } 962 /* make sure all FIFO's are gone */ 963 /* else there can be a deadlock */ 964 if (ugen_fs_uninit(f)) { 965 /* ignore any errors */ 966 DPRINTFN(6, "no FIFOs\n"); 967 } 968 /* start re-enumeration of device */ 969 usbd_start_re_enumerate(udev); 970 return (0); 971 } 972 973 int 974 ugen_fs_uninit(struct usb_fifo *f) 975 { 976 if (f->fs_xfer == NULL) { 977 return (EINVAL); 978 } 979 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 980 kfree(f->fs_xfer, M_USB); 981 f->fs_xfer = NULL; 982 f->fs_ep_max = 0; 983 f->fs_ep_ptr = NULL; 984 f->flag_iscomplete = 0; 985 usb_fifo_free_buffer(f); 986 return (0); 987 } 988 989 static uint8_t 990 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 991 { 992 struct usb_mbuf *m; 993 994 USB_IF_DEQUEUE(&f->used_q, m); 995 996 if (m) { 997 *pindex = *((uint8_t *)(m->cur_data_ptr)); 998 999 USB_IF_ENQUEUE(&f->free_q, m); 1000 1001 return (0); /* success */ 1002 } else { 1003 1004 *pindex = 0; /* fix compiler warning */ 1005 1006 f->flag_iscomplete = 0; 1007 } 1008 return (1); /* failure */ 1009 } 1010 1011 static void 1012 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1013 { 1014 struct usb_mbuf *m; 1015 1016 USB_IF_DEQUEUE(&f->free_q, m); 1017 1018 if (m == NULL) { 1019 /* can happen during close */ 1020 DPRINTF("out of buffers\n"); 1021 return; 1022 } 1023 USB_MBUF_RESET(m); 1024 1025 *((uint8_t *)(m->cur_data_ptr)) = index; 1026 1027 USB_IF_ENQUEUE(&f->used_q, m); 1028 1029 f->flag_iscomplete = 1; 1030 1031 usb_fifo_wakeup(f); 1032 } 1033 1034 static int 1035 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1036 { 1037 struct usb_device_request *req; 1038 struct usb_xfer *xfer; 1039 struct usb_fs_endpoint fs_ep; 1040 void *uaddr; /* userland pointer */ 1041 void *kaddr; 1042 usb_frlength_t offset; 1043 usb_frlength_t rem; 1044 usb_frcount_t n; 1045 uint32_t length; 1046 int error; 1047 uint8_t isread; 1048 1049 if (ep_index >= f->fs_ep_max) { 1050 return (EINVAL); 1051 } 1052 xfer = f->fs_xfer[ep_index]; 1053 if (xfer == NULL) { 1054 return (EINVAL); 1055 } 1056 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1057 if (usbd_transfer_pending(xfer)) { 1058 lockmgr(f->priv_lock, LK_RELEASE); 1059 return (EBUSY); /* should not happen */ 1060 } 1061 lockmgr(f->priv_lock, LK_RELEASE); 1062 1063 error = copyin(f->fs_ep_ptr + 1064 ep_index, &fs_ep, sizeof(fs_ep)); 1065 if (error) { 1066 return (error); 1067 } 1068 /* security checks */ 1069 1070 if (fs_ep.nFrames > xfer->max_frame_count) { 1071 xfer->error = USB_ERR_INVAL; 1072 goto complete; 1073 } 1074 if (fs_ep.nFrames == 0) { 1075 xfer->error = USB_ERR_INVAL; 1076 goto complete; 1077 } 1078 error = copyin(fs_ep.ppBuffer, 1079 &uaddr, sizeof(uaddr)); 1080 if (error) { 1081 return (error); 1082 } 1083 /* reset first frame */ 1084 usbd_xfer_set_frame_offset(xfer, 0, 0); 1085 1086 if (xfer->flags_int.control_xfr) { 1087 1088 req = xfer->frbuffers[0].buffer; 1089 1090 error = copyin(fs_ep.pLength, 1091 &length, sizeof(length)); 1092 if (error) { 1093 return (error); 1094 } 1095 if (length != sizeof(*req)) { 1096 xfer->error = USB_ERR_INVAL; 1097 goto complete; 1098 } 1099 if (length != 0) { 1100 error = copyin(uaddr, req, length); 1101 if (error) { 1102 return (error); 1103 } 1104 } 1105 if (ugen_check_request(f->udev, req)) { 1106 xfer->error = USB_ERR_INVAL; 1107 goto complete; 1108 } 1109 usbd_xfer_set_frame_len(xfer, 0, length); 1110 1111 /* Host mode only ! */ 1112 if ((req->bmRequestType & 1113 (UT_READ | UT_WRITE)) == UT_READ) { 1114 isread = 1; 1115 } else { 1116 isread = 0; 1117 } 1118 n = 1; 1119 offset = sizeof(*req); 1120 1121 } else { 1122 /* Device and Host mode */ 1123 if (USB_GET_DATA_ISREAD(xfer)) { 1124 isread = 1; 1125 } else { 1126 isread = 0; 1127 } 1128 n = 0; 1129 offset = 0; 1130 } 1131 1132 rem = usbd_xfer_max_len(xfer); 1133 xfer->nframes = fs_ep.nFrames; 1134 xfer->timeout = fs_ep.timeout; 1135 if (xfer->timeout > 65535) { 1136 xfer->timeout = 65535; 1137 } 1138 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1139 xfer->flags.short_xfer_ok = 1; 1140 else 1141 xfer->flags.short_xfer_ok = 0; 1142 1143 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1144 xfer->flags.short_frames_ok = 1; 1145 else 1146 xfer->flags.short_frames_ok = 0; 1147 1148 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1149 xfer->flags.force_short_xfer = 1; 1150 else 1151 xfer->flags.force_short_xfer = 0; 1152 1153 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1154 usbd_xfer_set_stall(xfer); 1155 else 1156 xfer->flags.stall_pipe = 0; 1157 1158 for (; n != xfer->nframes; n++) { 1159 1160 error = copyin(fs_ep.pLength + n, 1161 &length, sizeof(length)); 1162 if (error) { 1163 break; 1164 } 1165 usbd_xfer_set_frame_len(xfer, n, length); 1166 1167 if (length > rem) { 1168 xfer->error = USB_ERR_INVAL; 1169 goto complete; 1170 } 1171 rem -= length; 1172 1173 if (!isread) { 1174 1175 /* we need to know the source buffer */ 1176 error = copyin(fs_ep.ppBuffer + n, 1177 &uaddr, sizeof(uaddr)); 1178 if (error) { 1179 break; 1180 } 1181 if (xfer->flags_int.isochronous_xfr) { 1182 /* get kernel buffer address */ 1183 kaddr = xfer->frbuffers[0].buffer; 1184 kaddr = USB_ADD_BYTES(kaddr, offset); 1185 } else { 1186 /* set current frame offset */ 1187 usbd_xfer_set_frame_offset(xfer, offset, n); 1188 1189 /* get kernel buffer address */ 1190 kaddr = xfer->frbuffers[n].buffer; 1191 } 1192 1193 /* move data */ 1194 error = copyin(uaddr, kaddr, length); 1195 if (error) { 1196 break; 1197 } 1198 } 1199 offset += length; 1200 } 1201 return (error); 1202 1203 complete: 1204 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1205 ugen_fs_set_complete(f, ep_index); 1206 lockmgr(f->priv_lock, LK_RELEASE); 1207 return (0); 1208 } 1209 1210 static int 1211 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1212 { 1213 struct usb_device_request *req; 1214 struct usb_xfer *xfer; 1215 struct usb_fs_endpoint fs_ep; 1216 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1217 void *uaddr; /* userland ptr */ 1218 void *kaddr; 1219 usb_frlength_t offset; 1220 usb_frlength_t rem; 1221 usb_frcount_t n; 1222 uint32_t length; 1223 uint32_t temp; 1224 int error; 1225 uint8_t isread; 1226 1227 if (ep_index >= f->fs_ep_max) 1228 return (EINVAL); 1229 1230 xfer = f->fs_xfer[ep_index]; 1231 if (xfer == NULL) 1232 return (EINVAL); 1233 1234 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1235 if (usbd_transfer_pending(xfer)) { 1236 lockmgr(f->priv_lock, LK_RELEASE); 1237 return (EBUSY); /* should not happen */ 1238 } 1239 lockmgr(f->priv_lock, LK_RELEASE); 1240 1241 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1242 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1243 if (error) { 1244 return (error); 1245 } 1246 fs_ep.status = xfer->error; 1247 fs_ep.aFrames = xfer->aframes; 1248 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1249 if (xfer->error) { 1250 goto complete; 1251 } 1252 if (xfer->flags_int.control_xfr) { 1253 req = xfer->frbuffers[0].buffer; 1254 1255 /* Host mode only ! */ 1256 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1257 isread = 1; 1258 } else { 1259 isread = 0; 1260 } 1261 if (xfer->nframes == 0) 1262 n = 0; /* should never happen */ 1263 else 1264 n = 1; 1265 } else { 1266 /* Device and Host mode */ 1267 if (USB_GET_DATA_ISREAD(xfer)) { 1268 isread = 1; 1269 } else { 1270 isread = 0; 1271 } 1272 n = 0; 1273 } 1274 1275 /* Update lengths and copy out data */ 1276 1277 rem = usbd_xfer_max_len(xfer); 1278 offset = 0; 1279 1280 for (; n != xfer->nframes; n++) { 1281 1282 /* get initial length into "temp" */ 1283 error = copyin(fs_ep.pLength + n, 1284 &temp, sizeof(temp)); 1285 if (error) { 1286 return (error); 1287 } 1288 if (temp > rem) { 1289 /* the userland length has been corrupted */ 1290 DPRINTF("corrupt userland length " 1291 "%u > %u\n", temp, rem); 1292 fs_ep.status = USB_ERR_INVAL; 1293 goto complete; 1294 } 1295 rem -= temp; 1296 1297 /* get actual transfer length */ 1298 length = xfer->frlengths[n]; 1299 if (length > temp) { 1300 /* data overflow */ 1301 fs_ep.status = USB_ERR_INVAL; 1302 DPRINTF("data overflow %u > %u\n", 1303 length, temp); 1304 goto complete; 1305 } 1306 if (isread) { 1307 1308 /* we need to know the destination buffer */ 1309 error = copyin(fs_ep.ppBuffer + n, 1310 &uaddr, sizeof(uaddr)); 1311 if (error) { 1312 return (error); 1313 } 1314 if (xfer->flags_int.isochronous_xfr) { 1315 /* only one frame buffer */ 1316 kaddr = USB_ADD_BYTES( 1317 xfer->frbuffers[0].buffer, offset); 1318 } else { 1319 /* multiple frame buffers */ 1320 kaddr = xfer->frbuffers[n].buffer; 1321 } 1322 1323 /* move data */ 1324 error = copyout(kaddr, uaddr, length); 1325 if (error) { 1326 return (error); 1327 } 1328 } 1329 /* 1330 * Update offset according to initial length, which is 1331 * needed by isochronous transfers! 1332 */ 1333 offset += temp; 1334 1335 /* update length */ 1336 error = copyout(&length, 1337 fs_ep.pLength + n, sizeof(length)); 1338 if (error) { 1339 return (error); 1340 } 1341 } 1342 1343 complete: 1344 /* update "aFrames" */ 1345 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1346 sizeof(fs_ep.aFrames)); 1347 if (error) 1348 goto done; 1349 1350 /* update "isoc_time_complete" */ 1351 error = copyout(&fs_ep.isoc_time_complete, 1352 &fs_ep_uptr->isoc_time_complete, 1353 sizeof(fs_ep.isoc_time_complete)); 1354 if (error) 1355 goto done; 1356 /* update "status" */ 1357 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1358 sizeof(fs_ep.status)); 1359 done: 1360 return (error); 1361 } 1362 1363 static uint8_t 1364 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1365 { 1366 struct usb_fifo *f_rx; 1367 struct usb_fifo *f_tx; 1368 1369 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1370 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1371 1372 if ((fflags & FREAD) && f_rx && 1373 (f_rx->xfer[0] || f_rx->xfer[1])) { 1374 return (1); /* RX FIFO in use */ 1375 } 1376 if ((fflags & FWRITE) && f_tx && 1377 (f_tx->xfer[0] || f_tx->xfer[1])) { 1378 return (1); /* TX FIFO in use */ 1379 } 1380 return (0); /* not in use */ 1381 } 1382 1383 static int 1384 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1385 { 1386 struct usb_config usb_config[1]; 1387 struct usb_device_request req; 1388 union { 1389 struct usb_fs_complete *pcomp; 1390 struct usb_fs_start *pstart; 1391 struct usb_fs_stop *pstop; 1392 struct usb_fs_open *popen; 1393 struct usb_fs_open_stream *popen_stream; 1394 struct usb_fs_close *pclose; 1395 struct usb_fs_clear_stall_sync *pstall; 1396 void *addr; 1397 } u; 1398 struct usb_endpoint *ep; 1399 struct usb_endpoint_descriptor *ed; 1400 struct usb_xfer *xfer; 1401 int error = 0; 1402 uint8_t iface_index; 1403 uint8_t isread; 1404 uint8_t ep_index; 1405 uint8_t pre_scale; 1406 1407 u.addr = addr; 1408 1409 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1410 1411 switch (cmd) { 1412 case USB_FS_COMPLETE: 1413 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1414 error = ugen_fs_get_complete(f, &ep_index); 1415 lockmgr(f->priv_lock, LK_RELEASE); 1416 1417 if (error) { 1418 error = EBUSY; 1419 break; 1420 } 1421 u.pcomp->ep_index = ep_index; 1422 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1423 break; 1424 1425 case USB_FS_START: 1426 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1427 if (error) 1428 break; 1429 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1430 xfer = f->fs_xfer[u.pstart->ep_index]; 1431 usbd_transfer_start(xfer); 1432 lockmgr(f->priv_lock, LK_RELEASE); 1433 break; 1434 1435 case USB_FS_STOP: 1436 if (u.pstop->ep_index >= f->fs_ep_max) { 1437 error = EINVAL; 1438 break; 1439 } 1440 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1441 xfer = f->fs_xfer[u.pstart->ep_index]; 1442 if (usbd_transfer_pending(xfer)) { 1443 usbd_transfer_stop(xfer); 1444 /* 1445 * Check if the USB transfer was stopped 1446 * before it was even started. Else a cancel 1447 * callback will be pending. 1448 */ 1449 if (!xfer->flags_int.transferring) { 1450 ugen_fs_set_complete(xfer->priv_sc, 1451 USB_P2U(xfer->priv_fifo)); 1452 } 1453 } 1454 lockmgr(f->priv_lock, LK_RELEASE); 1455 break; 1456 1457 case USB_FS_OPEN: 1458 case USB_FS_OPEN_STREAM: 1459 if (u.popen->ep_index >= f->fs_ep_max) { 1460 error = EINVAL; 1461 break; 1462 } 1463 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1464 error = EBUSY; 1465 break; 1466 } 1467 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1468 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1469 } 1470 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1471 pre_scale = 1; 1472 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1473 } else { 1474 pre_scale = 0; 1475 } 1476 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1477 u.popen->max_frames = USB_FS_MAX_FRAMES; 1478 break; 1479 } 1480 if (u.popen->max_frames == 0) { 1481 error = EINVAL; 1482 break; 1483 } 1484 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1485 if (ep == NULL) { 1486 error = EINVAL; 1487 break; 1488 } 1489 ed = ep->edesc; 1490 if (ed == NULL) { 1491 error = ENXIO; 1492 break; 1493 } 1494 iface_index = ep->iface_index; 1495 1496 memset(usb_config, 0, sizeof(usb_config)); 1497 1498 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1499 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1500 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1501 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1502 usb_config[0].flags.proxy_buffer = 1; 1503 if (pre_scale != 0) 1504 usb_config[0].flags.pre_scale_frames = 1; 1505 usb_config[0].callback = &ugen_ctrl_fs_callback; 1506 usb_config[0].timeout = 0; /* no timeout */ 1507 usb_config[0].frames = u.popen->max_frames; 1508 usb_config[0].bufsize = u.popen->max_bufsize; 1509 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1510 if (cmd == USB_FS_OPEN_STREAM) 1511 usb_config[0].stream_id = u.popen_stream->stream_id; 1512 1513 if (usb_config[0].type == UE_CONTROL) { 1514 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1515 error = EINVAL; 1516 break; 1517 } 1518 } else { 1519 1520 isread = ((usb_config[0].endpoint & 1521 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1522 1523 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1524 isread = !isread; 1525 } 1526 /* check permissions */ 1527 if (isread) { 1528 if (!(fflags & FREAD)) { 1529 error = EPERM; 1530 break; 1531 } 1532 } else { 1533 if (!(fflags & FWRITE)) { 1534 error = EPERM; 1535 break; 1536 } 1537 } 1538 } 1539 error = usbd_transfer_setup(f->udev, &iface_index, 1540 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1541 f, f->priv_lock); 1542 if (error == 0) { 1543 /* update maximums */ 1544 u.popen->max_packet_length = 1545 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1546 u.popen->max_bufsize = 1547 f->fs_xfer[u.popen->ep_index]->max_data_length; 1548 /* update number of frames */ 1549 u.popen->max_frames = 1550 f->fs_xfer[u.popen->ep_index]->nframes; 1551 /* store index of endpoint */ 1552 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1553 ((uint8_t *)0) + u.popen->ep_index; 1554 } else { 1555 error = ENOMEM; 1556 } 1557 break; 1558 1559 case USB_FS_CLOSE: 1560 if (u.pclose->ep_index >= f->fs_ep_max) { 1561 error = EINVAL; 1562 break; 1563 } 1564 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1565 error = EINVAL; 1566 break; 1567 } 1568 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1569 break; 1570 1571 case USB_FS_CLEAR_STALL_SYNC: 1572 if (u.pstall->ep_index >= f->fs_ep_max) { 1573 error = EINVAL; 1574 break; 1575 } 1576 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1577 error = EINVAL; 1578 break; 1579 } 1580 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1581 error = EINVAL; 1582 break; 1583 } 1584 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1585 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1586 lockmgr(f->priv_lock, LK_RELEASE); 1587 1588 if (error) { 1589 return (EBUSY); 1590 } 1591 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1592 1593 /* setup a clear-stall packet */ 1594 req.bmRequestType = UT_WRITE_ENDPOINT; 1595 req.bRequest = UR_CLEAR_FEATURE; 1596 USETW(req.wValue, UF_ENDPOINT_HALT); 1597 req.wIndex[0] = ep->edesc->bEndpointAddress; 1598 req.wIndex[1] = 0; 1599 USETW(req.wLength, 0); 1600 1601 error = usbd_do_request(f->udev, NULL, &req, NULL); 1602 if (error == 0) { 1603 usbd_clear_data_toggle(f->udev, ep); 1604 } else { 1605 error = ENXIO; 1606 } 1607 break; 1608 1609 default: 1610 error = ENOIOCTL; 1611 break; 1612 } 1613 1614 DPRINTFN(6, "error=%d\n", error); 1615 1616 return (error); 1617 } 1618 1619 static int 1620 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1621 { 1622 uint8_t t; 1623 1624 if (*(int *)addr) 1625 t = 1; 1626 else 1627 t = 0; 1628 1629 if (f->flag_short == t) { 1630 /* same value like before - accept */ 1631 return (0); 1632 } 1633 if (f->xfer[0] || f->xfer[1]) { 1634 /* cannot change this during transfer */ 1635 return (EBUSY); 1636 } 1637 f->flag_short = t; 1638 return (0); 1639 } 1640 1641 static int 1642 ugen_set_timeout(struct usb_fifo *f, void *addr) 1643 { 1644 f->timeout = *(int *)addr; 1645 if (f->timeout > 65535) { 1646 /* limit user input */ 1647 f->timeout = 65535; 1648 } 1649 return (0); 1650 } 1651 1652 static int 1653 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1654 { 1655 if (f->xfer[0]) { 1656 *(int *)addr = f->xfer[0]->max_frame_size; 1657 } else { 1658 return (EINVAL); 1659 } 1660 return (0); 1661 } 1662 1663 static int 1664 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1665 { 1666 usb_frlength_t t; 1667 1668 if (*(int *)addr < 0) 1669 t = 0; /* use "wMaxPacketSize" */ 1670 else if (*(int *)addr < (256 * 1024)) 1671 t = *(int *)addr; 1672 else 1673 t = 256 * 1024; 1674 1675 if (f->bufsize == t) { 1676 /* same value like before - accept */ 1677 return (0); 1678 } 1679 if (f->xfer[0] || f->xfer[1]) { 1680 /* cannot change this during transfer */ 1681 return (EBUSY); 1682 } 1683 f->bufsize = t; 1684 return (0); 1685 } 1686 1687 static int 1688 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1689 { 1690 *(int *)addr = f->bufsize; 1691 return (0); 1692 } 1693 1694 static int 1695 ugen_get_iface_desc(struct usb_fifo *f, 1696 struct usb_interface_descriptor *idesc) 1697 { 1698 struct usb_interface *iface; 1699 1700 iface = usbd_get_iface(f->udev, f->iface_index); 1701 if (iface && iface->idesc) { 1702 *idesc = *(iface->idesc); 1703 } else { 1704 return (EIO); 1705 } 1706 return (0); 1707 } 1708 1709 static int 1710 ugen_get_endpoint_desc(struct usb_fifo *f, 1711 struct usb_endpoint_descriptor *ed) 1712 { 1713 struct usb_endpoint *ep; 1714 1715 ep = usb_fifo_softc(f); 1716 1717 if (ep && ep->edesc) { 1718 *ed = *ep->edesc; 1719 } else { 1720 return (EINVAL); 1721 } 1722 return (0); 1723 } 1724 1725 static int 1726 ugen_set_power_mode(struct usb_fifo *f, int mode) 1727 { 1728 struct usb_device *udev = f->udev; 1729 int err; 1730 uint8_t old_mode; 1731 1732 if ((udev == NULL) || 1733 (udev->parent_hub == NULL)) { 1734 return (EINVAL); 1735 } 1736 err = priv_check(curthread, PRIV_DRIVER); 1737 if (err) 1738 return (err); 1739 1740 /* get old power mode */ 1741 old_mode = udev->power_mode; 1742 1743 /* if no change, then just return */ 1744 if (old_mode == mode) 1745 return (0); 1746 1747 switch (mode) { 1748 case USB_POWER_MODE_OFF: 1749 if (udev->flags.usb_mode == USB_MODE_HOST && 1750 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1751 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF; 1752 } 1753 /* set power mode will wake up the explore thread */ 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 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1803 udev->re_enumerate_wait = USB_RE_ENUM_START; 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_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp) 1827 { 1828 struct usb_device *udev = f->udev; 1829 struct usb_device *next; 1830 unsigned int nlevel = 0; 1831 1832 if (udev == NULL) 1833 goto error; 1834 1835 dpp->udp_bus = device_get_unit(udev->bus->bdev); 1836 dpp->udp_index = udev->device_index; 1837 1838 /* count port levels */ 1839 next = udev; 1840 while (next->parent_hub != NULL) { 1841 nlevel++; 1842 next = next->parent_hub; 1843 } 1844 1845 /* check if too many levels */ 1846 if (nlevel > USB_DEVICE_PORT_PATH_MAX) 1847 goto error; 1848 1849 /* store total level of ports */ 1850 dpp->udp_port_level = nlevel; 1851 1852 /* store port index array */ 1853 next = udev; 1854 while (next->parent_hub != NULL) { 1855 dpp->udp_port_no[--nlevel] = next->port_no; 1856 next = next->parent_hub; 1857 } 1858 return (0); /* success */ 1859 1860 error: 1861 return (EINVAL); /* failure */ 1862 } 1863 1864 static int 1865 ugen_get_power_usage(struct usb_fifo *f) 1866 { 1867 struct usb_device *udev = f->udev; 1868 1869 if (udev == NULL) 1870 return (0); 1871 1872 return (udev->power); 1873 } 1874 1875 static int 1876 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1877 uint8_t set, uint16_t feature) 1878 { 1879 struct usb_device *udev = f->udev; 1880 struct usb_hub *hub; 1881 int err; 1882 1883 err = priv_check(curthread, PRIV_DRIVER); 1884 if (err) { 1885 return (err); 1886 } 1887 if (port_no == 0) { 1888 return (EINVAL); 1889 } 1890 if ((udev == NULL) || 1891 (udev->hub == NULL)) { 1892 return (EINVAL); 1893 } 1894 hub = udev->hub; 1895 1896 if (port_no > hub->nports) { 1897 return (EINVAL); 1898 } 1899 if (set) 1900 err = usbd_req_set_port_feature(udev, 1901 NULL, port_no, feature); 1902 else 1903 err = usbd_req_clear_port_feature(udev, 1904 NULL, port_no, feature); 1905 1906 if (err) 1907 return (ENXIO); /* failure */ 1908 1909 return (0); /* success */ 1910 } 1911 1912 static int 1913 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1914 { 1915 struct usb_fifo *f_rx; 1916 struct usb_fifo *f_tx; 1917 int error = 0; 1918 1919 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1920 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1921 1922 switch (cmd) { 1923 case USB_SET_RX_SHORT_XFER: 1924 if (fflags & FREAD) { 1925 error = ugen_set_short_xfer(f_rx, addr); 1926 } else { 1927 error = EINVAL; 1928 } 1929 break; 1930 1931 case USB_SET_TX_FORCE_SHORT: 1932 if (fflags & FWRITE) { 1933 error = ugen_set_short_xfer(f_tx, addr); 1934 } else { 1935 error = EINVAL; 1936 } 1937 break; 1938 1939 case USB_SET_RX_TIMEOUT: 1940 if (fflags & FREAD) { 1941 error = ugen_set_timeout(f_rx, addr); 1942 } else { 1943 error = EINVAL; 1944 } 1945 break; 1946 1947 case USB_SET_TX_TIMEOUT: 1948 if (fflags & FWRITE) { 1949 error = ugen_set_timeout(f_tx, addr); 1950 } else { 1951 error = EINVAL; 1952 } 1953 break; 1954 1955 case USB_GET_RX_FRAME_SIZE: 1956 if (fflags & FREAD) { 1957 error = ugen_get_frame_size(f_rx, addr); 1958 } else { 1959 error = EINVAL; 1960 } 1961 break; 1962 1963 case USB_GET_TX_FRAME_SIZE: 1964 if (fflags & FWRITE) { 1965 error = ugen_get_frame_size(f_tx, addr); 1966 } else { 1967 error = EINVAL; 1968 } 1969 break; 1970 1971 case USB_SET_RX_BUFFER_SIZE: 1972 if (fflags & FREAD) { 1973 error = ugen_set_buffer_size(f_rx, addr); 1974 } else { 1975 error = EINVAL; 1976 } 1977 break; 1978 1979 case USB_SET_TX_BUFFER_SIZE: 1980 if (fflags & FWRITE) { 1981 error = ugen_set_buffer_size(f_tx, addr); 1982 } else { 1983 error = EINVAL; 1984 } 1985 break; 1986 1987 case USB_GET_RX_BUFFER_SIZE: 1988 if (fflags & FREAD) { 1989 error = ugen_get_buffer_size(f_rx, addr); 1990 } else { 1991 error = EINVAL; 1992 } 1993 break; 1994 1995 case USB_GET_TX_BUFFER_SIZE: 1996 if (fflags & FWRITE) { 1997 error = ugen_get_buffer_size(f_tx, addr); 1998 } else { 1999 error = EINVAL; 2000 } 2001 break; 2002 2003 case USB_GET_RX_INTERFACE_DESC: 2004 if (fflags & FREAD) { 2005 error = ugen_get_iface_desc(f_rx, addr); 2006 } else { 2007 error = EINVAL; 2008 } 2009 break; 2010 2011 case USB_GET_TX_INTERFACE_DESC: 2012 if (fflags & FWRITE) { 2013 error = ugen_get_iface_desc(f_tx, addr); 2014 } else { 2015 error = EINVAL; 2016 } 2017 break; 2018 2019 case USB_GET_RX_ENDPOINT_DESC: 2020 if (fflags & FREAD) { 2021 error = ugen_get_endpoint_desc(f_rx, addr); 2022 } else { 2023 error = EINVAL; 2024 } 2025 break; 2026 2027 case USB_GET_TX_ENDPOINT_DESC: 2028 if (fflags & FWRITE) { 2029 error = ugen_get_endpoint_desc(f_tx, addr); 2030 } else { 2031 error = EINVAL; 2032 } 2033 break; 2034 2035 case USB_SET_RX_STALL_FLAG: 2036 if ((fflags & FREAD) && (*(int *)addr)) { 2037 f_rx->flag_stall = 1; 2038 } 2039 break; 2040 2041 case USB_SET_TX_STALL_FLAG: 2042 if ((fflags & FWRITE) && (*(int *)addr)) { 2043 f_tx->flag_stall = 1; 2044 } 2045 break; 2046 2047 default: 2048 error = ENOIOCTL; 2049 break; 2050 } 2051 return (error); 2052 } 2053 2054 static int 2055 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2056 { 2057 union { 2058 struct usb_interface_descriptor *idesc; 2059 struct usb_alt_interface *ai; 2060 struct usb_device_descriptor *ddesc; 2061 struct usb_config_descriptor *cdesc; 2062 struct usb_device_stats *stat; 2063 struct usb_fs_init *pinit; 2064 struct usb_fs_uninit *puninit; 2065 struct usb_device_port_path *dpp; 2066 uint32_t *ptime; 2067 void *addr; 2068 int *pint; 2069 } u; 2070 struct usb_device_descriptor *dtemp; 2071 struct usb_config_descriptor *ctemp; 2072 struct usb_interface *iface; 2073 int error = 0; 2074 uint8_t n; 2075 2076 u.addr = addr; 2077 2078 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2079 2080 switch (cmd) { 2081 case USB_DISCOVER: 2082 usb_needs_explore_all(); 2083 break; 2084 2085 case USB_SETDEBUG: 2086 if (!(fflags & FWRITE)) { 2087 error = EPERM; 2088 break; 2089 } 2090 usb_debug = *(int *)addr; 2091 break; 2092 2093 case USB_GET_CONFIG: 2094 *(int *)addr = f->udev->curr_config_index; 2095 break; 2096 2097 case USB_SET_CONFIG: 2098 if (!(fflags & FWRITE)) { 2099 error = EPERM; 2100 break; 2101 } 2102 error = ugen_set_config(f, *(int *)addr); 2103 break; 2104 2105 case USB_GET_ALTINTERFACE: 2106 iface = usbd_get_iface(f->udev, 2107 u.ai->uai_interface_index); 2108 if (iface && iface->idesc) { 2109 u.ai->uai_alt_index = iface->alt_index; 2110 } else { 2111 error = EINVAL; 2112 } 2113 break; 2114 2115 case USB_SET_ALTINTERFACE: 2116 if (!(fflags & FWRITE)) { 2117 error = EPERM; 2118 break; 2119 } 2120 error = ugen_set_interface(f, 2121 u.ai->uai_interface_index, u.ai->uai_alt_index); 2122 break; 2123 2124 case USB_GET_DEVICE_DESC: 2125 dtemp = usbd_get_device_descriptor(f->udev); 2126 if (!dtemp) { 2127 error = EIO; 2128 break; 2129 } 2130 *u.ddesc = *dtemp; 2131 break; 2132 2133 case USB_GET_CONFIG_DESC: 2134 ctemp = usbd_get_config_descriptor(f->udev); 2135 if (!ctemp) { 2136 error = EIO; 2137 break; 2138 } 2139 *u.cdesc = *ctemp; 2140 break; 2141 2142 case USB_GET_FULL_DESC: 2143 error = ugen_get_cdesc(f, addr); 2144 break; 2145 2146 case USB_GET_STRING_DESC: 2147 error = ugen_get_sdesc(f, addr); 2148 break; 2149 2150 case USB_GET_IFACE_DRIVER: 2151 error = ugen_get_iface_driver(f, addr); 2152 break; 2153 2154 case USB_REQUEST: 2155 case USB_DO_REQUEST: 2156 if (!(fflags & FWRITE)) { 2157 error = EPERM; 2158 break; 2159 } 2160 error = ugen_do_request(f, addr); 2161 break; 2162 2163 case USB_DEVICEINFO: 2164 case USB_GET_DEVICEINFO: 2165 error = usb_gen_fill_deviceinfo(f, addr); 2166 break; 2167 2168 case USB_DEVICESTATS: 2169 for (n = 0; n != 4; n++) { 2170 2171 u.stat->uds_requests_fail[n] = 2172 f->udev->bus->stats_err.uds_requests[n]; 2173 2174 u.stat->uds_requests_ok[n] = 2175 f->udev->bus->stats_ok.uds_requests[n]; 2176 } 2177 break; 2178 2179 case USB_DEVICEENUMERATE: 2180 error = ugen_re_enumerate(f); 2181 break; 2182 2183 case USB_GET_PLUGTIME: 2184 *u.ptime = f->udev->plugtime; 2185 break; 2186 2187 case USB_CLAIM_INTERFACE: 2188 case USB_RELEASE_INTERFACE: 2189 /* TODO */ 2190 break; 2191 2192 case USB_IFACE_DRIVER_ACTIVE: 2193 2194 n = *u.pint & 0xFF; 2195 2196 iface = usbd_get_iface(f->udev, n); 2197 2198 if (iface && iface->subdev) 2199 error = 0; 2200 else 2201 error = ENXIO; 2202 break; 2203 2204 case USB_IFACE_DRIVER_DETACH: 2205 2206 error = priv_check(curthread, PRIV_DRIVER); 2207 2208 if (error) 2209 break; 2210 2211 n = *u.pint & 0xFF; 2212 2213 if (n == USB_IFACE_INDEX_ANY) { 2214 error = EINVAL; 2215 break; 2216 } 2217 2218 /* 2219 * Detach the currently attached driver. 2220 */ 2221 usb_detach_device(f->udev, n, 0); 2222 2223 /* 2224 * Set parent to self, this should keep attach away 2225 * until the next set configuration event. 2226 */ 2227 usbd_set_parent_iface(f->udev, n, n); 2228 break; 2229 2230 case USB_SET_POWER_MODE: 2231 error = ugen_set_power_mode(f, *u.pint); 2232 break; 2233 2234 case USB_GET_POWER_MODE: 2235 *u.pint = ugen_get_power_mode(f); 2236 break; 2237 2238 case USB_GET_DEV_PORT_PATH: 2239 error = ugen_get_port_path(f, u.dpp); 2240 break; 2241 2242 case USB_GET_POWER_USAGE: 2243 *u.pint = ugen_get_power_usage(f); 2244 break; 2245 2246 case USB_SET_PORT_ENABLE: 2247 error = ugen_do_port_feature(f, 2248 *u.pint, 1, UHF_PORT_ENABLE); 2249 break; 2250 2251 case USB_SET_PORT_DISABLE: 2252 error = ugen_do_port_feature(f, 2253 *u.pint, 0, UHF_PORT_ENABLE); 2254 break; 2255 2256 case USB_FS_INIT: 2257 /* verify input parameters */ 2258 if (u.pinit->pEndpoints == NULL) { 2259 error = EINVAL; 2260 break; 2261 } 2262 if (u.pinit->ep_index_max > 127) { 2263 error = EINVAL; 2264 break; 2265 } 2266 if (u.pinit->ep_index_max == 0) { 2267 error = EINVAL; 2268 break; 2269 } 2270 if (f->fs_xfer != NULL) { 2271 error = EBUSY; 2272 break; 2273 } 2274 if (f->dev_ep_index != 0) { 2275 error = EINVAL; 2276 break; 2277 } 2278 if (ugen_fifo_in_use(f, fflags)) { 2279 error = EBUSY; 2280 break; 2281 } 2282 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2283 if (error) { 2284 break; 2285 } 2286 f->fs_xfer = kmalloc(sizeof(f->fs_xfer[0]) * 2287 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2288 if (f->fs_xfer == NULL) { 2289 usb_fifo_free_buffer(f); 2290 error = ENOMEM; 2291 break; 2292 } 2293 f->fs_ep_max = u.pinit->ep_index_max; 2294 f->fs_ep_ptr = u.pinit->pEndpoints; 2295 break; 2296 2297 case USB_FS_UNINIT: 2298 if (u.puninit->dummy != 0) { 2299 error = EINVAL; 2300 break; 2301 } 2302 error = ugen_fs_uninit(f); 2303 break; 2304 2305 default: 2306 lockmgr(f->priv_lock, LK_EXCLUSIVE); 2307 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2308 lockmgr(f->priv_lock, LK_RELEASE); 2309 break; 2310 } 2311 DPRINTFN(6, "error=%d\n", error); 2312 return (error); 2313 } 2314 2315 static void 2316 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2317 { 2318 ; /* workaround for a bug in "indent" */ 2319 2320 DPRINTF("st=%u alen=%u aframes=%u\n", 2321 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2322 2323 switch (USB_GET_STATE(xfer)) { 2324 case USB_ST_SETUP: 2325 usbd_transfer_submit(xfer); 2326 break; 2327 default: 2328 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2329 break; 2330 } 2331 } 2332 #endif /* USB_HAVE_UGEN */ 2333