uvideo.c revision 1.6
1 /* $NetBSD: uvideo.c,v 1.6 2008/09/18 13:34:56 jmcneill Exp $ */ 2 3 /* 4 * Copyright (c) 2008 Patrick Mahoney 5 * All rights reserved. 6 * 7 * This code was written by Patrick Mahoney (pat (at) polycrystal.org) as 8 * part of Google Summer of Code 2008. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * USB video specs: 41 * http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: uvideo.c,v 1.6 2008/09/18 13:34:56 jmcneill Exp $"); 46 47 #ifdef _MODULE 48 #include <sys/module.h> 49 #endif 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 /* #include <sys/malloc.h> */ 55 #include <sys/kmem.h> 56 #include <sys/device.h> 57 #include <sys/ioctl.h> 58 #include <sys/uio.h> 59 #include <sys/tty.h> 60 #include <sys/file.h> 61 #include <sys/select.h> 62 #include <sys/proc.h> 63 #include <sys/conf.h> 64 #include <sys/vnode.h> 65 #include <sys/poll.h> 66 #include <sys/queue.h> /* SLIST */ 67 68 #include <sys/videoio.h> 69 #include <dev/video_if.h> 70 71 #include <dev/usb/usb.h> 72 #include <dev/usb/usbdi.h> 73 #include <dev/usb/usbdi_util.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/uvideoreg.h> 77 78 #define UVIDEO_NXFERS 3 79 80 /* #define UVIDEO_DEBUG */ 81 82 #ifdef UVIDEO_DEBUG 83 #define DPRINTF(x) do { if (uvideodebug) logprintf x; } while (0) 84 #define DPRINTFN(n,x) do { if (uvideodebug>(n)) logprintf x; } while (0) 85 int uvideodebug = 20; 86 #else 87 #define DPRINTF(x) 88 #define DPRINTFN(n,x) 89 #endif 90 91 typedef enum { 92 UVIDEO_STATE_CLOSED, 93 UVIDEO_STATE_OPENING, 94 UVIDEO_STATE_IDLE 95 } uvideo_state; 96 97 struct uvideo_camera_terminal { 98 uint16_t ct_objective_focal_min; 99 uint16_t ct_objective_focal_max; 100 uint16_t ct_ocular_focal_length; 101 }; 102 103 struct uvideo_processing_unit { 104 uint16_t pu_max_multiplier; /* digital zoom */ 105 uint8_t pu_video_standards; 106 }; 107 108 struct uvideo_extension_unit { 109 guid_t xu_guid; 110 }; 111 112 /* For simplicity, we consider a Terminal a special case of Unit 113 * rather than a separate entity. */ 114 struct uvideo_unit { 115 uint8_t vu_id; 116 uint8_t vu_type; 117 uint8_t vu_dst_id; 118 uint8_t vu_nsrcs; 119 union { 120 uint8_t vu_src_id; /* vu_nsrcs = 1 */ 121 uint8_t *vu_src_id_ary; /* vu_nsrcs > 1 */ 122 } s; 123 124 /* fields for individual unit/terminal types */ 125 union { 126 struct uvideo_camera_terminal vu_camera; 127 struct uvideo_processing_unit vu_processing; 128 struct uvideo_extension_unit vu_extension; 129 } u; 130 131 /* Used by camera terminal, processing and extention units. */ 132 uint8_t vu_control_size; /* number of bytes in vu_controls */ 133 uint8_t *vu_controls; /* array of bytes. bits are 134 * numbered from 0 at least 135 * significant bit to 136 * (8*vu_control_size - 1)*/ 137 }; 138 139 struct uvideo_alternate { 140 uint8_t altno; 141 uint8_t interval; 142 uint16_t max_packet_size; 143 SLIST_ENTRY(uvideo_alternate) entries; 144 }; 145 SLIST_HEAD(altlist, uvideo_alternate); 146 147 #define UVIDEO_FORMAT_GET_FORMAT_INDEX(fmt) \ 148 ((fmt)->format.priv & 0xff) 149 #define UVIDEO_FORMAT_GET_FRAME_INDEX(fmt) \ 150 (((fmt)->format.priv >> 8) & 0xff) 151 /* TODO: find a better way to set bytes within this 32 bit value? */ 152 #define UVIDEO_FORMAT_SET_FORMAT_INDEX(fmt, index) do { \ 153 (fmt)->format.priv &= ~0xff; \ 154 (fmt)->format.priv |= ((index) & 0xff); \ 155 } while (0) 156 #define UVIDEO_FORMAT_SET_FRAME_INDEX(fmt, index) do { \ 157 (fmt)->format.priv &= ~(0xff << 8); \ 158 ((fmt)->format.priv |= (((index) & 0xff) << 8)); \ 159 } while (0) 160 161 struct uvideo_format { 162 struct video_format format; 163 SIMPLEQ_ENTRY(uvideo_format) entries; 164 }; 165 SIMPLEQ_HEAD(uvideo_format_list, uvideo_format); 166 167 struct uvideo_isoc_xfer; 168 struct uvideo_stream; 169 170 struct uvideo_isoc { 171 struct uvideo_isoc_xfer *i_ix; 172 struct uvideo_stream *i_vs; 173 usbd_xfer_handle i_xfer; 174 uint8_t *i_buf; 175 uint16_t *i_frlengths; 176 }; 177 178 struct uvideo_isoc_xfer { 179 uint8_t ix_endpt; 180 usbd_pipe_handle ix_pipe; 181 struct uvideo_isoc ix_i[UVIDEO_NXFERS]; 182 uint32_t ix_nframes; 183 uint32_t ix_uframe_len; 184 185 struct altlist ix_altlist; 186 }; 187 188 struct uvideo_bulk_xfer { 189 uint8_t bx_endpt; 190 usbd_pipe_handle bx_pipe; 191 usbd_xfer_handle bx_xfer; 192 uint8_t *bx_buffer; 193 int bx_buflen; 194 int bx_datalen; 195 }; 196 197 struct uvideo_stream { 198 struct uvideo_softc *vs_parent; 199 usbd_interface_handle vs_iface; 200 uint8_t vs_ifaceno; 201 uint8_t vs_subtype; /* input or output */ 202 uint16_t vs_probelen; /* length of probe and 203 * commit data; varies 204 * depending on version 205 * of spec. */ 206 struct uvideo_format_list vs_formats; 207 struct video_format *vs_default_format; 208 struct video_format vs_current_format; 209 210 /* usb transfer details */ 211 uint8_t vs_xfer_type; 212 union { 213 struct uvideo_bulk_xfer bulk; 214 struct uvideo_isoc_xfer isoc; 215 } vs_xfer; 216 217 int vs_frameno; /* toggles between 0 and 1 */ 218 219 /* current video format */ 220 uint32_t vs_max_payload_size; 221 uint32_t vs_max_frame_size; 222 uint32_t vs_frame_interval; 223 SLIST_ENTRY(uvideo_stream) entries; 224 }; 225 SLIST_HEAD(uvideo_stream_list, uvideo_stream); 226 227 struct uvideo_softc { 228 USBBASEDEVICE sc_dev; /* base device */ 229 usbd_device_handle sc_udev; /* device */ 230 usbd_interface_handle sc_iface; /* interface handle */ 231 int sc_ifaceno; /* interface number */ 232 char *sc_devname; 233 234 device_ptr_t sc_videodev; 235 236 int sc_dying; 237 uvideo_state sc_state; 238 239 uint8_t sc_nunits; 240 struct uvideo_unit **sc_unit; 241 242 struct uvideo_stream *sc_stream_in; 243 244 struct uvideo_stream_list sc_stream_list; 245 }; 246 247 int uvideo_match(device_t, cfdata_t, void *); 248 void uvideo_attach(device_t, device_t, void *); 249 int uvideo_detach(device_t, int); 250 void uvideo_childdet(device_t, device_t); 251 int uvideo_activate(device_t, enum devact); 252 253 static int uvideo_open(void *, int); 254 static void uvideo_close(void *); 255 static const char * uvideo_get_devname(void *); 256 257 static int uvideo_enum_format(void *, uint32_t, struct video_format *); 258 static int uvideo_get_format(void *, struct video_format *); 259 static int uvideo_set_format(void *, struct video_format *); 260 static int uvideo_start_transfer(void *); 261 static int uvideo_stop_transfer(void *); 262 263 static int uvideo_get_control_group(void *, 264 struct video_control_group *); 265 static int uvideo_set_control_group(void *, 266 const struct video_control_group *); 267 268 static usbd_status uvideo_init_control( 269 struct uvideo_softc *, 270 const usb_interface_descriptor_t *, 271 usbd_desc_iter_t *); 272 static usbd_status uvideo_init_collection( 273 struct uvideo_softc *, 274 const usb_interface_descriptor_t *, 275 usbd_desc_iter_t *); 276 277 /* Functions for unit & terminal descriptors */ 278 static struct uvideo_unit * uvideo_unit_alloc(const uvideo_descriptor_t *); 279 static usbd_status uvideo_unit_init(struct uvideo_unit *, 280 const uvideo_descriptor_t *); 281 static void uvideo_unit_free(struct uvideo_unit *); 282 static usbd_status uvideo_unit_alloc_controls(struct uvideo_unit *, 283 uint8_t, 284 const uint8_t *); 285 static void uvideo_unit_free_controls(struct uvideo_unit *); 286 static usbd_status uvideo_unit_alloc_sources(struct uvideo_unit *, 287 uint8_t, 288 const uint8_t *); 289 static void uvideo_unit_free_sources(struct uvideo_unit *); 290 291 292 293 294 /* Functions for uvideo_stream, primary unit associated with a video 295 * driver or device file. */ 296 static struct uvideo_stream * uvideo_find_stream(struct uvideo_softc *, 297 uint8_t); 298 static struct uvideo_format * uvideo_stream_find_format( 299 struct uvideo_stream *, 300 uint8_t, uint8_t); 301 static struct uvideo_stream * uvideo_stream_alloc(void); 302 static usbd_status uvideo_stream_init( 303 struct uvideo_stream *stream, 304 struct uvideo_softc *sc, 305 const usb_interface_descriptor_t *ifdesc, 306 uint8_t idx); 307 static usbd_status uvideo_stream_init_desc( 308 struct uvideo_stream *, 309 const usb_interface_descriptor_t *ifdesc, 310 usbd_desc_iter_t *iter); 311 static usbd_status uvideo_stream_init_frame_based_format( 312 struct uvideo_stream *, 313 const uvideo_descriptor_t *, 314 usbd_desc_iter_t *); 315 static void uvideo_stream_free(struct uvideo_stream *); 316 317 static int uvideo_stream_start_xfer(struct uvideo_stream *); 318 static int uvideo_stream_stop_xfer(struct uvideo_stream *); 319 static usbd_status uvideo_stream_recv_isoc_start(struct uvideo_stream *); 320 static usbd_status uvideo_stream_recv_isoc_start1(struct uvideo_isoc *); 321 static void uvideo_stream_recv_isoc_complete(usbd_xfer_handle, 322 usbd_private_handle, 323 usbd_status); 324 325 /* format probe and commit */ 326 #define uvideo_stream_probe(vs, act, data) \ 327 (uvideo_stream_probe_and_commit((vs), (act), \ 328 UVIDEO_VS_PROBE_CONTROL, (data))) 329 #define uvideo_stream_commit(vs, act, data) \ 330 (uvideo_stream_probe_and_commit((vs), (act), \ 331 UVIDEO_VS_COMMIT_CONTROL, (data))) 332 static usbd_status uvideo_stream_probe_and_commit(struct uvideo_stream *, 333 uint8_t, uint8_t, 334 void *); 335 static void uvideo_init_probe_data(uvideo_probe_and_commit_data_t *); 336 337 338 static const usb_descriptor_t * usb_desc_iter_peek_next(usbd_desc_iter_t *); 339 static const usb_interface_descriptor_t * usb_desc_iter_next_interface( 340 usbd_desc_iter_t *); 341 static const usb_descriptor_t * usb_desc_iter_next_non_interface( 342 usbd_desc_iter_t *); 343 344 static int usb_guid_cmp(const usb_guid_t *, const guid_t *); 345 346 347 CFATTACH_DECL2_NEW(uvideo, sizeof(struct uvideo_softc), 348 uvideo_match, uvideo_attach, uvideo_detach, uvideo_activate, NULL, 349 uvideo_childdet); 350 351 extern struct cfdriver uvideo_cd; 352 353 354 static const struct video_hw_if uvideo_hw_if = { 355 .open = uvideo_open, 356 .close = uvideo_close, 357 .get_devname = uvideo_get_devname, 358 .enum_format = uvideo_enum_format, 359 .get_format = uvideo_get_format, 360 .set_format = uvideo_set_format, 361 .try_format = NULL, 362 .start_transfer = uvideo_start_transfer, 363 .stop_transfer = uvideo_stop_transfer, 364 .control_iter_init = NULL, 365 .control_iter_next = NULL, 366 .get_control_desc_group = NULL, 367 .get_control_group = uvideo_get_control_group, 368 .set_control_group = uvideo_set_control_group, 369 }; 370 371 #ifdef UVIDEO_DEBUG 372 /* Some functions to print out descriptors. Mostly useless other than 373 * debugging/exploration purposes. */ 374 static void usb_guid_print(const usb_guid_t *); 375 static void print_descriptor(const usb_descriptor_t *); 376 static void print_interface_descriptor(const usb_interface_descriptor_t *); 377 static void print_endpoint_descriptor(const usb_endpoint_descriptor_t *); 378 379 static void print_vc_descriptor(const usb_descriptor_t *); 380 static void print_vs_descriptor(const usb_descriptor_t *); 381 382 static void print_vc_header_descriptor( 383 const uvideo_vc_header_descriptor_t *); 384 static void print_input_terminal_descriptor( 385 const uvideo_input_terminal_descriptor_t *); 386 static void print_output_terminal_descriptor( 387 const uvideo_output_terminal_descriptor_t *); 388 static void print_camera_terminal_descriptor( 389 const uvideo_camera_terminal_descriptor_t *); 390 static void print_selector_unit_descriptor( 391 const uvideo_selector_unit_descriptor_t *); 392 static void print_processing_unit_descriptor( 393 const uvideo_processing_unit_descriptor_t *); 394 static void print_extension_unit_descriptor( 395 const uvideo_extension_unit_descriptor_t *); 396 static void print_interrupt_endpoint_descriptor( 397 const uvideo_vc_interrupt_endpoint_descriptor_t *); 398 399 static void print_vs_input_header_descriptor( 400 const uvideo_vs_input_header_descriptor_t *); 401 static void print_vs_output_header_descriptor( 402 const uvideo_vs_output_header_descriptor_t *); 403 404 static void print_vs_format_uncompressed_descriptor( 405 const uvideo_vs_format_uncompressed_descriptor_t *); 406 static void print_vs_frame_uncompressed_descriptor( 407 const uvideo_vs_frame_uncompressed_descriptor_t *); 408 static void print_vs_format_mjpeg_descriptor( 409 const uvideo_vs_format_mjpeg_descriptor_t *); 410 static void print_vs_frame_mjpeg_descriptor( 411 const uvideo_vs_frame_mjpeg_descriptor_t *); 412 static void print_vs_format_dv_descriptor( 413 const uvideo_vs_format_dv_descriptor_t *); 414 #endif /* !UVIDEO_DEBUG */ 415 416 #define GET(type, descp, field) (((const type *)(descp))->field) 417 #define GETP(type, descp, field) (&(((const type *)(descp))->field)) 418 419 /* Given a format descriptor and frame descriptor, copy values common 420 * to all formats into a struct uvideo_format. */ 421 #define UVIDEO_FORMAT_INIT_FRAME_BASED(format_type, format_desc, \ 422 frame_type, frame_desc, \ 423 format) \ 424 do { \ 425 UVIDEO_FORMAT_SET_FORMAT_INDEX( \ 426 format, \ 427 GET(format_type, format_desc, bFormatIndex)); \ 428 UVIDEO_FORMAT_SET_FRAME_INDEX( \ 429 format, \ 430 GET(frame_type, frame_desc, bFrameIndex)); \ 431 format->format.width = \ 432 UGETW(GET(frame_type, frame_desc, wWidth)); \ 433 format->format.height = \ 434 UGETW(GET(frame_type, frame_desc, wHeight)); \ 435 format->format.aspect_x = \ 436 GET(format_type, format_desc, bAspectRatioX); \ 437 format->format.aspect_y = \ 438 GET(format_type, format_desc, bAspectRatioY); \ 439 } while (0) 440 441 442 USB_MATCH(uvideo) 443 { 444 USB_IFMATCH_START(uvideo, uaa); 445 446 /* TODO: May need to change in the future to work with 447 * Interface Association Descriptor. */ 448 449 /* Trigger on the Video Control Interface which must be present */ 450 if (uaa->class == UICLASS_VIDEO && 451 uaa->subclass == UISUBCLASS_VIDEOCONTROL) 452 return UMATCH_IFACECLASS_IFACESUBCLASS; 453 454 return UMATCH_NONE; 455 } 456 457 USB_ATTACH(uvideo) 458 { 459 USB_IFATTACH_START(uvideo, sc, uaa); 460 usbd_desc_iter_t iter; 461 const usb_interface_descriptor_t *ifdesc; 462 struct uvideo_stream *vs; 463 usbd_status err; 464 uint8_t ifaceidx; 465 466 sc->sc_dev = self; 467 468 sc->sc_devname = usbd_devinfo_alloc(uaa->device, 0); 469 470 aprint_naive("\n"); 471 aprint_normal(": %s\n", sc->sc_devname); 472 473 sc->sc_udev = uaa->device; 474 sc->sc_iface = uaa->iface; 475 sc->sc_ifaceno = uaa->ifaceno; 476 sc->sc_dying = 0; 477 sc->sc_state = UVIDEO_STATE_CLOSED; 478 SLIST_INIT(&sc->sc_stream_list); 479 480 #ifdef UVIDEO_DEBUG 481 /* Debugging dump of descriptors. TODO: move this to userspace 482 * via a custom IOCTL or something. */ 483 const usb_descriptor_t *desc; 484 usb_desc_iter_init(sc->sc_udev, &iter); 485 while ((desc = usb_desc_iter_next(&iter)) != NULL) { 486 /* print out all descriptors */ 487 printf("uvideo_attach: "); 488 print_descriptor(desc); 489 } 490 #endif /* !UVIDEO_DEBUG */ 491 492 /* iterate through interface descriptors and initialize softc */ 493 usb_desc_iter_init(sc->sc_udev, &iter); 494 for (ifaceidx = 0; 495 (ifdesc = usb_desc_iter_next_interface(&iter)) != NULL; 496 ++ifaceidx) 497 { 498 if (ifdesc->bInterfaceClass != UICLASS_VIDEO) { 499 DPRINTFN(50, ("uvideo_attach: " 500 "ignoring non-uvc interface: " 501 "len=%d type=0x%02x " 502 "class=0x%02x subclass=0x%02x\n", 503 ifdesc->bLength, 504 ifdesc->bDescriptorType, 505 ifdesc->bInterfaceClass, 506 ifdesc->bInterfaceSubClass)); 507 continue; 508 } 509 510 switch (ifdesc->bInterfaceSubClass) { 511 case UISUBCLASS_VIDEOCONTROL: 512 err = uvideo_init_control(sc, ifdesc, &iter); 513 if (err != USBD_NORMAL_COMPLETION) { 514 DPRINTF(("uvideo_attach: error with interface " 515 "%d, VideoControl, " 516 "descriptor len=%d type=0x%02x: " 517 "%s (%d)\n", 518 ifdesc->bInterfaceNumber, 519 ifdesc->bLength, 520 ifdesc->bDescriptorType, 521 usbd_errstr(err), err)); 522 } 523 break; 524 case UISUBCLASS_VIDEOSTREAMING: 525 vs = uvideo_find_stream(sc, ifdesc->bInterfaceNumber); 526 if (vs == NULL) { 527 vs = uvideo_stream_alloc(); 528 if (vs == NULL) { 529 DPRINTF(("uvideo_attach: " 530 "failed to alloc stream\n")); 531 err = USBD_NOMEM; 532 goto bad; 533 } 534 err = uvideo_stream_init(vs, sc, ifdesc, 535 ifaceidx); 536 if (err != USBD_NORMAL_COMPLETION) { 537 DPRINTF(("uvideo_attach: " 538 "error initializing stream: " 539 "%s (%d)\n", 540 usbd_errstr(err), err)); 541 goto bad; 542 } 543 } 544 err = uvideo_stream_init_desc(vs, ifdesc, &iter); 545 if (err != USBD_NORMAL_COMPLETION) { 546 DPRINTF(("uvideo_attach: " 547 "error initializing stream descriptor: " 548 "%s (%d)\n", 549 usbd_errstr(err), err)); 550 goto bad; 551 } 552 /* TODO: for now, set (each) stream to stream_in. */ 553 sc->sc_stream_in = vs; 554 break; 555 case UISUBCLASS_VIDEOCOLLECTION: 556 err = uvideo_init_collection(sc, ifdesc, &iter); 557 if (err != USBD_NORMAL_COMPLETION) { 558 DPRINTF(("uvideo_attach: error with interface " 559 "%d, VideoCollection, " 560 "descriptor len=%d type=0x%02x: " 561 "%s (%d)\n", 562 ifdesc->bInterfaceNumber, 563 ifdesc->bLength, 564 ifdesc->bDescriptorType, 565 usbd_errstr(err), err)); 566 goto bad; 567 } 568 break; 569 default: 570 DPRINTF(("uvideo_attach: unknown UICLASS_VIDEO " 571 "subclass=0x%02x\n", 572 ifdesc->bInterfaceSubClass)); 573 break; 574 } 575 576 } 577 578 579 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 580 USBDEV(sc->sc_dev)); 581 582 sc->sc_videodev = video_attach_mi(&uvideo_hw_if, sc->sc_dev); 583 DPRINTF(("uvideo_attach: attached video driver at %p\n", 584 sc->sc_videodev)); 585 586 USB_ATTACH_SUCCESS_RETURN; 587 588 bad: 589 if (err != USBD_NORMAL_COMPLETION) { 590 DPRINTF(("uvideo_attach: error: %s (%d)\n", 591 usbd_errstr(err), err)); 592 } 593 USB_ATTACH_ERROR_RETURN; 594 } 595 596 597 int 598 uvideo_activate(device_t self, enum devact act) 599 { 600 struct uvideo_softc *sc; 601 int rv; 602 603 sc = device_private(self); 604 rv = 0; 605 switch (act) { 606 case DVACT_ACTIVATE: 607 return EOPNOTSUPP; 608 609 case DVACT_DEACTIVATE: 610 DPRINTF(("uvideo_activate: deactivating\n")); 611 if (sc->sc_videodev != NULL) 612 rv = config_deactivate(sc->sc_videodev); 613 sc->sc_dying = 1; 614 break; 615 } 616 return rv; 617 } 618 619 620 /* Detach child (video interface) */ 621 void 622 uvideo_childdet(device_t self, device_t child) 623 { 624 struct uvideo_softc *sc = device_private(self); 625 626 KASSERT(sc->sc_videodev == child); 627 sc->sc_videodev = NULL; 628 } 629 630 631 int 632 uvideo_detach(device_t self, int flags) 633 { 634 struct uvideo_softc *sc; 635 struct uvideo_stream *vs; 636 int rv; 637 638 sc = device_private(self); 639 rv = 0; 640 641 sc->sc_dying = 1; 642 643 usbd_devinfo_free(sc->sc_devname); 644 645 /* TODO: close the device if it is currently opened? Or will 646 * close be called automatically? */ 647 648 while (!SLIST_EMPTY(&sc->sc_stream_list)) { 649 vs = SLIST_FIRST(&sc->sc_stream_list); 650 SLIST_REMOVE_HEAD(&sc->sc_stream_list, entries); 651 uvideo_stream_free(vs); 652 } 653 654 /* Wait for outstanding request to complete. TODO: what is 655 * appropriate here? */ 656 usbd_delay_ms(sc->sc_udev, 1000); 657 658 DPRINTFN(15, ("uvideo: detaching from %s\n", 659 USBDEVNAME(sc->sc_dev))); 660 661 if (sc->sc_videodev != NULL) 662 rv = config_detach(sc->sc_videodev, flags); 663 664 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 665 USBDEV(sc->sc_dev)); 666 667 return rv; 668 } 669 670 /* Search the stream list for a stream matching the interface number. 671 * This is an O(n) search, but most devices should have only one or at 672 * most two streams. */ 673 static struct uvideo_stream * 674 uvideo_find_stream(struct uvideo_softc *sc, uint8_t ifaceno) 675 { 676 struct uvideo_stream *vs; 677 678 SLIST_FOREACH(vs, &sc->sc_stream_list, entries) { 679 if (vs->vs_ifaceno == ifaceno) 680 return vs; 681 } 682 683 return NULL; 684 } 685 686 /* Search the format list for the given format and frame index. This 687 * might be improved through indexing, but the format and frame count 688 * is unknown ahead of time (only after iterating through the 689 * usb device descriptors). */ 690 static struct uvideo_format * 691 uvideo_stream_find_format(struct uvideo_stream *vs, 692 uint8_t format_index, uint8_t frame_index) 693 { 694 struct uvideo_format *format; 695 696 SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { 697 if (UVIDEO_FORMAT_GET_FORMAT_INDEX(format) == format_index && 698 UVIDEO_FORMAT_GET_FRAME_INDEX(format) == frame_index) 699 return format; 700 } 701 return NULL; 702 } 703 704 static struct uvideo_stream * 705 uvideo_stream_alloc(void) 706 { 707 return (kmem_alloc(sizeof(struct uvideo_stream), KM_NOSLEEP)); 708 } 709 710 711 static usbd_status 712 uvideo_init_control(struct uvideo_softc *sc, 713 const usb_interface_descriptor_t *ifdesc, 714 usbd_desc_iter_t *iter) 715 { 716 const usb_descriptor_t *desc; 717 const uvideo_descriptor_t *uvdesc; 718 usbd_desc_iter_t orig; 719 uint8_t i, j, nunits; 720 721 /* save original iterator state */ 722 memcpy(&orig, iter, sizeof(orig)); 723 724 /* count number of units and terminals */ 725 nunits = 0; 726 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 727 uvdesc = (const uvideo_descriptor_t *)desc; 728 729 if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) 730 continue; 731 732 switch (uvdesc->bDescriptorSubtype) { 733 case UDESC_INPUT_TERMINAL: 734 case UDESC_OUTPUT_TERMINAL: 735 case UDESC_SELECTOR_UNIT: 736 case UDESC_PROCESSING_UNIT: 737 case UDESC_EXTENSION_UNIT: 738 ++nunits; 739 break; 740 default: 741 break; 742 } 743 } 744 745 /* allocate space for units */ 746 sc->sc_nunits = nunits; 747 sc->sc_unit = kmem_alloc(sizeof(*sc->sc_unit) * nunits, KM_SLEEP); 748 if (sc->sc_unit == NULL) 749 goto enomem; 750 751 /* restore original iterator state */ 752 memcpy(iter, &orig, sizeof(orig)); 753 754 /* iterate again, initializing the units */ 755 i = 0; 756 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 757 uvdesc = (const uvideo_descriptor_t *)desc; 758 759 sc->sc_unit[i] = uvideo_unit_alloc(uvdesc); 760 /* TODO: free other units before returning? */ 761 if (sc->sc_unit[i] == NULL) 762 goto enomem; 763 ++i; 764 } 765 766 return USBD_NORMAL_COMPLETION; 767 768 enomem: 769 if (sc->sc_unit != NULL) { 770 for (j = 0; j < i; ++j) { 771 uvideo_unit_free(sc->sc_unit[j]); 772 sc->sc_unit[j] = NULL; 773 } 774 kmem_free(sc->sc_unit, sizeof(*sc->sc_unit) * nunits); 775 sc->sc_unit = NULL; 776 } 777 sc->sc_nunits = 0; 778 779 return USBD_NOMEM; 780 } 781 782 static usbd_status 783 uvideo_init_collection(struct uvideo_softc *sc, 784 const usb_interface_descriptor_t *ifdesc, 785 usbd_desc_iter_t *iter) 786 { 787 DPRINTF(("uvideo: ignoring Video Collection\n")); 788 return USBD_NORMAL_COMPLETION; 789 } 790 791 /* Allocates space for and initializes a uvideo unit based on the 792 * given descriptor. Returns NULL with bad descriptor or ENOMEM. */ 793 static struct uvideo_unit * 794 uvideo_unit_alloc(const uvideo_descriptor_t *desc) 795 { 796 struct uvideo_unit *vu; 797 usbd_status err; 798 799 if (desc->bDescriptorType != UDESC_CS_INTERFACE) 800 return NULL; 801 802 vu = kmem_alloc(sizeof(*vu), KM_SLEEP); 803 if (vu == NULL) 804 return NULL; 805 806 err = uvideo_unit_init(vu, desc); 807 if (err != USBD_NORMAL_COMPLETION) { 808 DPRINTF(("uvideo_unit_alloc: error initializing unit: " 809 "%s (%d)\n", usbd_errstr(err), err)); 810 kmem_free(vu, sizeof(*vu)); 811 return NULL; 812 } 813 814 return vu; 815 } 816 817 static usbd_status 818 uvideo_unit_init(struct uvideo_unit *vu, const uvideo_descriptor_t *desc) 819 { 820 struct uvideo_camera_terminal *ct; 821 struct uvideo_processing_unit *pu; 822 struct uvideo_extension_unit *xu; 823 824 const uvideo_input_terminal_descriptor_t *input; 825 const uvideo_output_terminal_descriptor_t *output; 826 const uvideo_camera_terminal_descriptor_t *camera; 827 const uvideo_selector_unit_descriptor_t *selector; 828 const uvideo_processing_unit_descriptor_t *processing; 829 const uvideo_extension_unit_descriptor_t *extension; 830 831 memset(vu, 0, sizeof(*vu)); 832 833 switch (desc->bDescriptorSubtype) { 834 case UDESC_INPUT_TERMINAL: 835 input = (const uvideo_input_terminal_descriptor_t *)desc; 836 switch (UGETW(input->wTerminalType)) { 837 case UVIDEO_ITT_CAMERA: 838 camera = 839 (const uvideo_camera_terminal_descriptor_t *)desc; 840 ct = &vu->u.vu_camera; 841 842 ct->ct_objective_focal_min = 843 UGETW(camera->wObjectiveFocalLengthMin); 844 ct->ct_objective_focal_max = 845 UGETW(camera->wObjectiveFocalLengthMax); 846 ct->ct_ocular_focal_length = 847 UGETW(camera->wOcularFocalLength); 848 849 uvideo_unit_alloc_controls(vu, camera->bControlSize, 850 camera->bmControls); 851 break; 852 default: 853 DPRINTF(("uvideo_unit_init: " 854 "unknown input terminal type 0x%04x\n", 855 UGETW(input->wTerminalType))); 856 return USBD_INVAL; 857 } 858 break; 859 case UDESC_OUTPUT_TERMINAL: 860 output = (const uvideo_output_terminal_descriptor_t *)desc; 861 break; 862 case UDESC_SELECTOR_UNIT: 863 selector = (const uvideo_selector_unit_descriptor_t *)desc; 864 865 uvideo_unit_alloc_sources(vu, selector->bNrInPins, 866 selector->baSourceID); 867 break; 868 case UDESC_PROCESSING_UNIT: 869 processing = (const uvideo_processing_unit_descriptor_t *)desc; 870 pu = &vu->u.vu_processing; 871 872 pu->pu_video_standards = PU_GET_VIDEO_STANDARDS(processing); 873 pu->pu_max_multiplier = UGETW(processing->wMaxMultiplier); 874 875 uvideo_unit_alloc_sources(vu, 1, &processing->bSourceID); 876 uvideo_unit_alloc_controls(vu, processing->bControlSize, 877 processing->bmControls); 878 break; 879 case UDESC_EXTENSION_UNIT: 880 extension = (const uvideo_extension_unit_descriptor_t *)desc; 881 xu = &vu->u.vu_extension; 882 /* TODO: copy guid */ 883 884 uvideo_unit_alloc_sources(vu, extension->bNrInPins, 885 extension->baSourceID); 886 uvideo_unit_alloc_controls(vu, XU_GET_CONTROL_SIZE(extension), 887 XU_GET_CONTROLS(extension)); 888 break; 889 default: 890 DPRINTF(("uvideo_unit_alloc: unknown descriptor " 891 "type=0x%02x subtype=0x%02x\n", 892 desc->bDescriptorType, desc->bDescriptorSubtype)); 893 return USBD_INVAL; 894 } 895 896 return USBD_NORMAL_COMPLETION; 897 } 898 899 static void 900 uvideo_unit_free(struct uvideo_unit *vu) 901 { 902 uvideo_unit_free_sources(vu); 903 uvideo_unit_free_controls(vu); 904 kmem_free(vu, sizeof(*vu)); 905 } 906 907 static usbd_status 908 uvideo_unit_alloc_sources(struct uvideo_unit *vu, 909 uint8_t nsrcs, const uint8_t *src_ids) 910 { 911 vu->vu_nsrcs = nsrcs; 912 913 if (nsrcs == 0) { 914 /* do nothing */ 915 } else if (nsrcs == 1) { 916 vu->s.vu_src_id = src_ids[0]; 917 } else { 918 vu->s.vu_src_id_ary = 919 kmem_alloc(sizeof(*vu->s.vu_src_id_ary) * nsrcs, KM_SLEEP); 920 if (vu->s.vu_src_id_ary == NULL) { 921 vu->vu_nsrcs = 0; 922 return USBD_NOMEM; 923 } 924 925 memcpy(vu->s.vu_src_id_ary, src_ids, nsrcs); 926 } 927 928 return USBD_NORMAL_COMPLETION; 929 } 930 931 static void 932 uvideo_unit_free_sources(struct uvideo_unit *vu) 933 { 934 if (vu->vu_nsrcs == 1) 935 return; 936 937 kmem_free(vu->s.vu_src_id_ary, 938 sizeof(*vu->s.vu_src_id_ary) * vu->vu_nsrcs); 939 vu->vu_nsrcs = 0; 940 vu->s.vu_src_id_ary = NULL; 941 } 942 943 static usbd_status 944 uvideo_unit_alloc_controls(struct uvideo_unit *vu, uint8_t size, 945 const uint8_t *controls) 946 { 947 vu->vu_controls = kmem_alloc(sizeof(*vu->vu_controls) * size, KM_SLEEP); 948 if (vu->vu_controls == NULL) 949 return USBD_NOMEM; 950 951 vu->vu_control_size = size; 952 memcpy(vu->vu_controls, controls, size); 953 954 return USBD_NORMAL_COMPLETION; 955 } 956 957 static void 958 uvideo_unit_free_controls(struct uvideo_unit *vu) 959 { 960 kmem_free(vu->vu_controls, 961 sizeof(*vu->vu_controls) * vu->vu_control_size); 962 vu->vu_controls = NULL; 963 vu->vu_control_size = 0; 964 } 965 966 967 /* Initialize a stream from a Video Streaming interface 968 * descriptor. Adds the stream to the stream_list in uvideo_softc. 969 * This should be called once for new streams, and 970 * uvideo_stream_init_desc() should then be called for this and each 971 * additional interface with the same interface number. */ 972 static usbd_status 973 uvideo_stream_init(struct uvideo_stream *vs, 974 struct uvideo_softc *sc, 975 const usb_interface_descriptor_t *ifdesc, 976 uint8_t idx) 977 { 978 uWord len; 979 usbd_status err; 980 981 SLIST_INSERT_HEAD(&sc->sc_stream_list, vs, entries); 982 memset(vs, 0, sizeof(*vs)); 983 vs->vs_parent = sc; 984 vs->vs_ifaceno = ifdesc->bInterfaceNumber; 985 vs->vs_subtype = 0; 986 SIMPLEQ_INIT(&vs->vs_formats); 987 vs->vs_default_format = NULL; 988 vs->vs_current_format.priv = -1; 989 vs->vs_xfer_type = 0; 990 991 err = usbd_device2interface_handle(sc->sc_udev, idx, &vs->vs_iface); 992 if (err != USBD_NORMAL_COMPLETION) { 993 DPRINTF(("uvideo_stream_init: " 994 "error getting vs interface: " 995 "%s (%d)\n", 996 usbd_errstr(err), err)); 997 return err; 998 } 999 1000 /* For Xbox Live Vision camera, linux-uvc folk say we need to 1001 * set an alternate interface and wait ~3 seconds prior to 1002 * doing the format probe/commit. We set to alternate 1003 * interface 0, which is the default, zero bandwidth 1004 * interface. This should not have adverse affects on other 1005 * cameras. Errors are ignored. */ 1006 err = usbd_set_interface(vs->vs_iface, 0); 1007 if (err != USBD_NORMAL_COMPLETION) { 1008 DPRINTF(("uvideo_stream_init: error setting alt interface: " 1009 "%s (%d)\n", 1010 usbd_errstr(err), err)); 1011 } 1012 1013 /* Initialize probe and commit data size. This value is 1014 * dependent on the version of the spec the hardware 1015 * implements. */ 1016 err = uvideo_stream_probe(vs, UR_GET_LEN, len); 1017 if (err != USBD_NORMAL_COMPLETION) { 1018 DPRINTF(("uvideo_stream_init: " 1019 "error getting probe data len: " 1020 "%s (%d)\n", 1021 usbd_errstr(err), err)); 1022 vs->vs_probelen = 26; /* conservative v1.0 length */ 1023 } else { 1024 DPRINTFN(15,("uvideo_stream_init: probelen=%d\n", UGETW(len))); 1025 vs->vs_probelen = UGETW(len); 1026 } 1027 1028 return USBD_NORMAL_COMPLETION; 1029 } 1030 1031 /* Further stream initialization based on a Video Streaming interface 1032 * descriptor and following descriptors belonging to that interface. 1033 * Iterates through all descriptors belonging to this particular 1034 * interface descriptor, modifying the iterator. This may be called 1035 * multiple times because there may be several alternate interfaces 1036 * associated with the same interface number. */ 1037 static usbd_status 1038 uvideo_stream_init_desc(struct uvideo_stream *vs, 1039 const usb_interface_descriptor_t *ifdesc, 1040 usbd_desc_iter_t *iter) 1041 { 1042 const usb_descriptor_t *desc; 1043 const uvideo_descriptor_t *uvdesc; 1044 struct uvideo_bulk_xfer *bx; 1045 struct uvideo_isoc_xfer *ix; 1046 struct uvideo_alternate *alt; 1047 uint8_t xfer_type; 1048 int i; 1049 1050 /* Iterate until the next interface descriptor. All 1051 * descriptors until then belong to this streaming 1052 * interface. */ 1053 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 1054 uvdesc = (const uvideo_descriptor_t *)desc; 1055 1056 switch (uvdesc->bDescriptorType) { 1057 case UDESC_ENDPOINT: 1058 xfer_type = UE_GET_XFERTYPE(GET(usb_endpoint_descriptor_t, 1059 desc, bmAttributes)); 1060 if (xfer_type == UE_BULK) { 1061 bx = &vs->vs_xfer.bulk; 1062 if (vs->vs_xfer_type == 0) { 1063 DPRINTFN(15, ("uvideo_attach: " 1064 "BULK stream *\n")); 1065 vs->vs_xfer_type = UE_BULK; 1066 bx->bx_endpt = 1067 GET(usb_endpoint_descriptor_t, 1068 desc, bEndpointAddress); 1069 } 1070 } else if (xfer_type == UE_ISOCHRONOUS) { 1071 ix = &vs->vs_xfer.isoc; 1072 for (i = 0; i < UVIDEO_NXFERS; i++) { 1073 ix->ix_i[i].i_ix = ix; 1074 ix->ix_i[i].i_vs = vs; 1075 } 1076 if (vs->vs_xfer_type == 0) { 1077 DPRINTFN(15, ("uvideo_attach: " 1078 "ISOC stream *\n")); 1079 SLIST_INIT(&ix->ix_altlist); 1080 vs->vs_xfer_type = UE_ISOCHRONOUS; 1081 ix->ix_endpt = 1082 GET(usb_endpoint_descriptor_t, 1083 desc, bEndpointAddress); 1084 } 1085 1086 alt = kmem_alloc(sizeof(*alt), KM_NOSLEEP); 1087 if (alt == NULL) 1088 return USBD_NOMEM; 1089 1090 alt->altno = ifdesc->bAlternateSetting; 1091 alt->interval = 1092 GET(usb_endpoint_descriptor_t, 1093 desc, bInterval); 1094 alt->max_packet_size = 1095 UGETW(GET(usb_endpoint_descriptor_t, 1096 desc, wMaxPacketSize)); 1097 SLIST_INSERT_HEAD(&ix->ix_altlist, 1098 alt, entries); 1099 } 1100 break; 1101 case UDESC_CS_INTERFACE: 1102 if (ifdesc->bAlternateSetting != 0) { 1103 DPRINTF(("uvideo_stream_init_alternate: " 1104 "unexpected class-specific descriptor " 1105 "len=%d type=0x%02x subtype=0x%02x\n", 1106 uvdesc->bLength, 1107 uvdesc->bDescriptorType, 1108 uvdesc->bDescriptorSubtype)); 1109 break; 1110 } 1111 1112 switch (uvdesc->bDescriptorSubtype) { 1113 case UDESC_VS_INPUT_HEADER: 1114 vs->vs_subtype = UDESC_VS_INPUT_HEADER; 1115 break; 1116 case UDESC_VS_OUTPUT_HEADER: 1117 /* TODO: handle output stream */ 1118 DPRINTF(("uvideo: VS output not implemented\n")); 1119 vs->vs_subtype = UDESC_VS_OUTPUT_HEADER; 1120 return USBD_INVAL; 1121 case UDESC_VS_FORMAT_UNCOMPRESSED: 1122 case UDESC_VS_FORMAT_FRAME_BASED: 1123 case UDESC_VS_FORMAT_MJPEG: 1124 uvideo_stream_init_frame_based_format(vs, 1125 uvdesc, 1126 iter); 1127 break; 1128 case UDESC_VS_FORMAT_MPEG2TS: 1129 case UDESC_VS_FORMAT_DV: 1130 case UDESC_VS_FORMAT_STREAM_BASED: 1131 default: 1132 DPRINTF(("uvideo: unimplemented VS CS " 1133 "descriptor len=%d type=0x%02x " 1134 "subtype=0x%02x\n", 1135 uvdesc->bLength, 1136 uvdesc->bDescriptorType, 1137 uvdesc->bDescriptorSubtype)); 1138 break; 1139 } 1140 break; 1141 default: 1142 DPRINTF(("uvideo_stream_init_desc: " 1143 "unknown descriptor " 1144 "len=%d type=0x%02x\n", 1145 uvdesc->bLength, 1146 uvdesc->bDescriptorType)); 1147 break; 1148 } 1149 } 1150 1151 return USBD_NORMAL_COMPLETION; 1152 } 1153 1154 /* Finialize and free memory associated with this stream. */ 1155 static void 1156 uvideo_stream_free(struct uvideo_stream *vs) 1157 { 1158 struct uvideo_alternate *alt; 1159 struct uvideo_format *format; 1160 1161 /* free linked list of alternate interfaces */ 1162 if (vs->vs_xfer_type == UE_ISOCHRONOUS) { 1163 while (!SLIST_EMPTY(&vs->vs_xfer.isoc.ix_altlist)) { 1164 alt = SLIST_FIRST(&vs->vs_xfer.isoc.ix_altlist); 1165 SLIST_REMOVE_HEAD(&vs->vs_xfer.isoc.ix_altlist, 1166 entries); 1167 kmem_free(alt, sizeof(*alt)); 1168 } 1169 } 1170 1171 /* free linked-list of formats */ 1172 while ((format = SIMPLEQ_FIRST(&vs->vs_formats)) != NULL) { 1173 SIMPLEQ_REMOVE_HEAD(&vs->vs_formats, entries); 1174 kmem_free(format, sizeof(struct uvideo_format)); 1175 } 1176 1177 kmem_free(vs, sizeof(*vs)); 1178 } 1179 1180 1181 static usbd_status 1182 uvideo_stream_init_frame_based_format(struct uvideo_stream *vs, 1183 const uvideo_descriptor_t *format_desc, 1184 usbd_desc_iter_t *iter) 1185 { 1186 struct uvideo_format *format; 1187 const uvideo_descriptor_t *uvdesc; 1188 uint8_t subtype, default_index, index; 1189 uint32_t frame_interval; 1190 const usb_guid_t *guid; 1191 1192 switch (format_desc->bDescriptorSubtype) { 1193 case UDESC_VS_FORMAT_UNCOMPRESSED: 1194 subtype = UDESC_VS_FRAME_UNCOMPRESSED; 1195 default_index = GET(uvideo_vs_format_uncompressed_descriptor_t, 1196 format_desc, 1197 bDefaultFrameIndex); 1198 break; 1199 case UDESC_VS_FORMAT_FRAME_BASED: 1200 subtype = UDESC_VS_FRAME_FRAME_BASED; 1201 default_index = GET(uvideo_format_frame_based_descriptor_t, 1202 format_desc, 1203 bDefaultFrameIndex); 1204 break; 1205 1206 break; 1207 case UDESC_VS_FORMAT_MJPEG: 1208 subtype = UDESC_VS_FRAME_MJPEG; 1209 default_index = GET(uvideo_vs_format_mjpeg_descriptor_t, 1210 format_desc, 1211 bDefaultFrameIndex); 1212 break; 1213 default: 1214 DPRINTF(("uvideo: unknown frame based format %d\n", 1215 format_desc->bDescriptorSubtype)); 1216 return USBD_INVAL; 1217 } 1218 1219 /* Iterate through frame descriptors directly following the 1220 * format descriptor, and add a format to the format list for 1221 * each frame descriptor. */ 1222 while ((uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_peek_next(iter)) && 1223 (uvdesc != NULL) && (uvdesc->bDescriptorSubtype == subtype)) 1224 { 1225 uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_next(iter); 1226 1227 format = kmem_zalloc(sizeof(struct uvideo_format), KM_SLEEP); 1228 if (format == NULL) { 1229 DPRINTF(("uvideo: failed to alloc video format\n")); 1230 return USBD_NOMEM; 1231 } 1232 1233 switch (format_desc->bDescriptorSubtype) { 1234 case UDESC_VS_FORMAT_UNCOMPRESSED: 1235 guid = GETP(uvideo_vs_format_uncompressed_descriptor_t, 1236 format_desc, 1237 guidFormat); 1238 1239 if (usb_guid_cmp(guid, 1240 &uvideo_guid_format_yuy2) == 0) { 1241 format->format.pixel_format = 1242 VIDEO_FORMAT_YUY2; 1243 } else if (usb_guid_cmp(guid, 1244 &uvideo_guid_format_nv12) == 0) { 1245 format->format.pixel_format = 1246 VIDEO_FORMAT_NV12; 1247 } else { 1248 format->format.pixel_format = 1249 VIDEO_FORMAT_UNDEFINED; 1250 #ifdef UVIDEO_DEBUG 1251 if (uvideodebug) { 1252 DPRINTF(("uvideo: format undefined ")); 1253 usb_guid_print(guid); 1254 DPRINTF(("\n")); 1255 } 1256 #endif 1257 } 1258 1259 UVIDEO_FORMAT_INIT_FRAME_BASED( 1260 uvideo_vs_format_uncompressed_descriptor_t, 1261 format_desc, 1262 uvideo_vs_frame_uncompressed_descriptor_t, 1263 uvdesc, 1264 format); 1265 index = GET(uvideo_vs_frame_uncompressed_descriptor_t, 1266 uvdesc, 1267 bFrameIndex); 1268 frame_interval = 1269 UGETDW( 1270 GET(uvideo_vs_frame_uncompressed_descriptor_t, 1271 uvdesc, 1272 dwDefaultFrameInterval)); 1273 break; 1274 case UDESC_VS_FORMAT_MJPEG: 1275 format->format.pixel_format = VIDEO_FORMAT_MJPEG; 1276 UVIDEO_FORMAT_INIT_FRAME_BASED( 1277 uvideo_vs_format_mjpeg_descriptor_t, 1278 format_desc, 1279 uvideo_vs_frame_mjpeg_descriptor_t, 1280 uvdesc, 1281 format); 1282 index = GET(uvideo_vs_frame_mjpeg_descriptor_t, 1283 uvdesc, 1284 bFrameIndex); 1285 frame_interval = 1286 UGETDW( 1287 GET(uvideo_vs_frame_mjpeg_descriptor_t, 1288 uvdesc, 1289 dwDefaultFrameInterval)); 1290 break; 1291 case UDESC_VS_FORMAT_FRAME_BASED: 1292 format->format.pixel_format = VIDEO_FORMAT_UNDEFINED; 1293 UVIDEO_FORMAT_INIT_FRAME_BASED( 1294 uvideo_format_frame_based_descriptor_t, 1295 format_desc, 1296 uvideo_frame_frame_based_descriptor_t, 1297 uvdesc, 1298 format); 1299 index = GET(uvideo_frame_frame_based_descriptor_t, 1300 uvdesc, 1301 bFrameIndex); 1302 frame_interval = 1303 UGETDW( 1304 GET(uvideo_frame_frame_based_descriptor_t, 1305 uvdesc, 1306 dwDefaultFrameInterval)); 1307 break; 1308 default: 1309 /* shouldn't ever get here */ 1310 DPRINTF(("uvideo: unknown frame based format %d\n", 1311 format_desc->bDescriptorSubtype)); 1312 kmem_free(format, sizeof(struct uvideo_format)); 1313 return USBD_INVAL; 1314 } 1315 1316 DPRINTF(("UVC: Found format (index %d) %d: %dx%d\n", 1317 index, format->format.pixel_format, format->format.width, 1318 format->format.height)); 1319 1320 SIMPLEQ_INSERT_TAIL(&vs->vs_formats, format, entries); 1321 1322 if (vs->vs_default_format == NULL && index == default_index) { 1323 DPRINTF((" ^ picking this one\n")); 1324 vs->vs_default_format = &format->format; 1325 vs->vs_frame_interval = frame_interval; 1326 } 1327 1328 } 1329 1330 return USBD_NORMAL_COMPLETION; 1331 } 1332 1333 static int 1334 uvideo_stream_start_xfer(struct uvideo_stream *vs) 1335 { 1336 struct uvideo_softc *sc = vs->vs_parent; 1337 struct uvideo_bulk_xfer *bx; 1338 struct uvideo_isoc_xfer *ix; 1339 uint32_t vframe_len; /* rough bytes per video frame */ 1340 uint32_t uframe_len; /* bytes per usb frame (TODO: or microframe?) */ 1341 uint32_t nframes; /* number of usb frames (TODO: or microframs?) */ 1342 int i; 1343 1344 struct uvideo_alternate *alt, *alt_maybe; 1345 usbd_status err; 1346 1347 switch (vs->vs_xfer_type) { 1348 case UE_BULK: 1349 bx = &vs->vs_xfer.bulk; 1350 return 0; 1351 case UE_ISOCHRONOUS: 1352 ix = &vs->vs_xfer.isoc; 1353 1354 vframe_len = vs->vs_max_frame_size; /* + nframes * HEADER */ 1355 uframe_len = UVIDEO_FRAME_INTERVAL_UNITS_PER_USB_FRAME * 1356 vframe_len / vs->vs_frame_interval; 1357 nframes = (vframe_len / uframe_len); 1358 if (nframes == 0) 1359 nframes++; 1360 1361 nframes = 64; /* ehci requires power of 2. doesn't 1362 * work well with logitech/uhci */ 1363 1364 /* Choose an alternate interface most suitable for 1365 * this format. Choose the smallest size that can 1366 * contain max_payload_size. 1367 * 1368 * It is assumed that the list is sorted in descending 1369 * order from largest to smallest packet size. 1370 * 1371 * TODO: what should the strategy be for choosing an 1372 * alt interface? 1373 */ 1374 alt = NULL; 1375 SLIST_FOREACH(alt_maybe, &ix->ix_altlist, entries) { 1376 /* TODO: define "packet" and "payload". I think 1377 * several packets can make up one payload which would 1378 * call into question this method of selecting an 1379 * alternate interface... */ 1380 1381 /* XXXJDM don't allow packet size > 1024 for now */ 1382 if (alt_maybe->max_packet_size > 1024) 1383 continue; 1384 1385 if (alt == NULL || 1386 alt_maybe->max_packet_size >= alt->max_packet_size) 1387 alt = alt_maybe; 1388 } 1389 1390 if (alt == NULL) { 1391 DPRINTF(("uvideo_stream_start_xfer: " 1392 "no suitable alternate interface found\n")); 1393 return EINVAL; 1394 } 1395 1396 DPRINTFN(15,("uvideo_stream_start_xfer: " 1397 "choosing alternate interface " 1398 "%d wMaxPacketSize=%d bInterval=%d\n", 1399 alt->altno, alt->max_packet_size, alt->interval)); 1400 1401 err = usbd_set_interface(vs->vs_iface, alt->altno); 1402 if (err != USBD_NORMAL_COMPLETION) { 1403 DPRINTF(("uvideo_open: error setting alt interface: %s (%d)\n", 1404 usbd_errstr(err), err)); 1405 return EIO; 1406 } 1407 1408 /* TODO: "packet" not same as frame */ 1409 uframe_len = alt->max_packet_size; 1410 1411 ix->ix_nframes = nframes; 1412 ix->ix_uframe_len = uframe_len; 1413 for (i = 0; i < UVIDEO_NXFERS; i++) { 1414 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1415 isoc->i_frlengths = 1416 kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, 1417 KM_SLEEP); 1418 if (isoc->i_frlengths == NULL) { 1419 DPRINTF(("uvideo: failed to alloc frlengths:" 1420 "%s (%d)\n", 1421 usbd_errstr(err), err)); 1422 return ENOMEM; 1423 } 1424 } 1425 1426 err = usbd_open_pipe(vs->vs_iface, ix->ix_endpt, 1427 USBD_EXCLUSIVE_USE, &ix->ix_pipe); 1428 if (err != USBD_NORMAL_COMPLETION) { 1429 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1430 usbd_errstr(err), err)); 1431 return EIO; 1432 } 1433 1434 for (i = 0; i < UVIDEO_NXFERS; i++) { 1435 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1436 isoc->i_xfer = usbd_alloc_xfer(sc->sc_udev); 1437 if (isoc->i_xfer == NULL) { 1438 DPRINTF(("uvideo: failed to alloc xfer: %s" 1439 " (%d)\n", 1440 usbd_errstr(err), err)); 1441 return ENOMEM; 1442 } 1443 1444 isoc->i_buf = usbd_alloc_buffer(isoc->i_xfer, 1445 nframes * uframe_len); 1446 if (isoc->i_xfer == NULL) { 1447 DPRINTF(("uvideo: failed to alloc buf: %s" 1448 " (%d)\n", 1449 usbd_errstr(err), err)); 1450 return ENOMEM; 1451 } 1452 } 1453 1454 uvideo_stream_recv_isoc_start(vs); 1455 1456 return 0; 1457 default: 1458 /* should never get here */ 1459 DPRINTF(("uvideo_stream_start_xfer: unknown xfer type 0x%x\n", 1460 vs->vs_xfer_type)); 1461 return EINVAL; 1462 } 1463 } 1464 1465 static int 1466 uvideo_stream_stop_xfer(struct uvideo_stream *vs) 1467 { 1468 struct uvideo_bulk_xfer *bx; 1469 struct uvideo_isoc_xfer *ix; 1470 usbd_status err; 1471 int i; 1472 1473 switch (vs->vs_xfer_type) { 1474 case UE_BULK: 1475 bx = &vs->vs_xfer.bulk; 1476 return 0; 1477 case UE_ISOCHRONOUS: 1478 ix = &vs->vs_xfer.isoc; 1479 if (ix->ix_pipe != NULL) { 1480 usbd_abort_pipe(ix->ix_pipe); 1481 usbd_close_pipe(ix->ix_pipe); 1482 ix->ix_pipe = NULL; 1483 } 1484 1485 for (i = 0; i < UVIDEO_NXFERS; i++) { 1486 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1487 if (isoc->i_xfer != NULL) { 1488 usbd_free_buffer(isoc->i_xfer); 1489 usbd_free_xfer(isoc->i_xfer); 1490 isoc->i_xfer = NULL; 1491 } 1492 1493 if (isoc->i_frlengths != NULL) { 1494 kmem_free(isoc->i_frlengths, 1495 sizeof(isoc->i_frlengths[0]) * 1496 ix->ix_nframes); 1497 isoc->i_frlengths = NULL; 1498 } 1499 } 1500 1501 /* Give it some time to settle */ 1502 usbd_delay_ms(vs->vs_parent->sc_udev, 1000); 1503 1504 /* Set to zero bandwidth alternate interface zero */ 1505 err = usbd_set_interface(vs->vs_iface, 0); 1506 if (err != USBD_NORMAL_COMPLETION) { 1507 DPRINTF(("uvideo_stream_stop_transfer: " 1508 "error setting zero bandwidth interface: " 1509 "%s (%d)\n", 1510 usbd_errstr(err), err)); 1511 return EIO; 1512 } 1513 1514 return 0; 1515 default: 1516 /* should never get here */ 1517 DPRINTF(("uvideo_stream_stop_xfer: unknown xfer type 0x%x\n", 1518 vs->vs_xfer_type)); 1519 return EINVAL; 1520 } 1521 } 1522 1523 static usbd_status 1524 uvideo_stream_recv_isoc_start(struct uvideo_stream *vs) 1525 { 1526 int i; 1527 1528 for (i = 0; i < UVIDEO_NXFERS; i++) 1529 uvideo_stream_recv_isoc_start1(&vs->vs_xfer.isoc.ix_i[i]); 1530 1531 return USBD_NORMAL_COMPLETION; 1532 } 1533 1534 /* Initiate a usb transfer. */ 1535 static usbd_status 1536 uvideo_stream_recv_isoc_start1(struct uvideo_isoc *isoc) 1537 { 1538 struct uvideo_isoc_xfer *ix; 1539 usbd_status err; 1540 int i; 1541 1542 ix = isoc->i_ix; 1543 1544 for (i = 0; i < ix->ix_nframes; ++i) 1545 isoc->i_frlengths[i] = ix->ix_uframe_len; 1546 1547 usbd_setup_isoc_xfer(isoc->i_xfer, 1548 ix->ix_pipe, 1549 isoc, 1550 isoc->i_frlengths, 1551 ix->ix_nframes, 1552 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1553 uvideo_stream_recv_isoc_complete); 1554 1555 err = usbd_transfer(isoc->i_xfer); 1556 if (err != USBD_IN_PROGRESS) { 1557 DPRINTF(("uvideo_stream_recv_start: " 1558 "usbd_transfer status=%s (%d)\n", 1559 usbd_errstr(err), err)); 1560 } 1561 return err; 1562 } 1563 1564 /* Callback on completion of usb isoc transfer */ 1565 static void 1566 uvideo_stream_recv_isoc_complete(usbd_xfer_handle xfer, 1567 usbd_private_handle priv, 1568 usbd_status status) 1569 { 1570 struct uvideo_stream *vs; 1571 struct uvideo_isoc_xfer *ix; 1572 struct uvideo_isoc *isoc; 1573 int i; 1574 uint32_t count; 1575 const uvideo_payload_header_t *hdr; 1576 uint8_t *buf; 1577 struct video_payload payload; 1578 1579 isoc = priv; 1580 vs = isoc->i_vs; 1581 ix = isoc->i_ix; 1582 1583 if (status != USBD_NORMAL_COMPLETION) { 1584 DPRINTF(("uvideo_stream_recv_isoc_complete: status=%s (%d)\n", 1585 usbd_errstr(status), status)); 1586 1587 if (status == USBD_STALLED) 1588 usbd_clear_endpoint_stall_async(ix->ix_pipe); 1589 else 1590 return; 1591 } else { 1592 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1593 1594 if (count == 0) { 1595 /* DPRINTF(("uvideo: zero length transfer\n")); */ 1596 /* return; */ /* TODO: what to do here? restarting 1597 * can lead to infinite loop */ 1598 } 1599 1600 hdr = (const uvideo_payload_header_t *)isoc->i_buf; 1601 1602 for (i = 0, buf = isoc->i_buf; 1603 i < ix->ix_nframes; 1604 ++i, buf += ix->ix_uframe_len) 1605 { 1606 if (isoc->i_frlengths[i] == 0) 1607 continue; 1608 1609 hdr = (uvideo_payload_header_t *)buf; 1610 1611 payload.data = buf + hdr->bHeaderLength; 1612 payload.size = isoc->i_frlengths[i] - 1613 hdr->bHeaderLength; 1614 payload.frameno = hdr->bmHeaderInfo & UV_FRAME_ID; 1615 payload.end_of_frame = 1616 hdr->bmHeaderInfo & UV_END_OF_FRAME; 1617 1618 video_submit_payload(vs->vs_parent->sc_videodev, 1619 &payload); 1620 } 1621 } 1622 1623 uvideo_stream_recv_isoc_start1(isoc); 1624 } 1625 1626 1627 /* 1628 * uvideo_open - probe and commit video format and start receiving 1629 * video data 1630 */ 1631 static int 1632 uvideo_open(void *addr, int flags) 1633 { 1634 struct uvideo_softc *sc; 1635 struct video_format fmt; 1636 1637 sc = addr; 1638 1639 DPRINTF(("uvideo_open: sc=%p\n", sc)); 1640 if (sc->sc_dying) 1641 return EIO; 1642 1643 /* XXX select default format */ 1644 memset(&fmt, 0, sizeof(fmt)); /* uvideo_set_format doesn't care */ 1645 return uvideo_set_format(addr, &fmt); 1646 } 1647 1648 1649 static void 1650 uvideo_close(void *addr) 1651 { 1652 struct uvideo_softc *sc; 1653 1654 sc = addr; 1655 1656 if (sc->sc_state != UVIDEO_STATE_CLOSED) { 1657 sc->sc_state = UVIDEO_STATE_CLOSED; 1658 } 1659 } 1660 1661 static const char * 1662 uvideo_get_devname(void *addr) 1663 { 1664 struct uvideo_softc *sc = addr; 1665 return sc->sc_devname; 1666 } 1667 1668 static int 1669 uvideo_enum_format(void *addr, uint32_t index, struct video_format *format) 1670 { 1671 struct uvideo_softc *sc = addr; 1672 struct uvideo_stream *vs = sc->sc_stream_in; 1673 1674 if (sc->sc_dying) 1675 return EIO; 1676 1677 if (index != 0) 1678 return EINVAL; 1679 1680 /* TODO: actually enumerate formats */ 1681 *format = *vs->vs_default_format; 1682 1683 return 0; 1684 } 1685 1686 /* 1687 * uvideo_get_format 1688 */ 1689 static int 1690 uvideo_get_format(void *addr, struct video_format *format) 1691 { 1692 struct uvideo_softc *sc = addr; 1693 struct uvideo_stream *vs = sc->sc_stream_in; 1694 1695 if (sc->sc_dying) 1696 return EIO; 1697 1698 if (vs->vs_current_format.priv != -1) 1699 *format = vs->vs_current_format; 1700 else 1701 *format = *vs->vs_default_format; 1702 1703 return 0; 1704 } 1705 1706 /* 1707 * uvideo_set_format - TODO: this is boken and does nothing 1708 */ 1709 static int 1710 uvideo_set_format(void *addr, struct video_format *format) 1711 { 1712 struct uvideo_softc *sc; 1713 struct uvideo_stream *vs; 1714 struct uvideo_format *uvfmt; 1715 uvideo_probe_and_commit_data_t probe; 1716 uint8_t ifaceno; 1717 usbd_status err; 1718 1719 sc = addr; 1720 1721 DPRINTF(("uvideo_set_format: sc=%p\n", sc)); 1722 if (sc->sc_dying) 1723 return EIO; 1724 1725 vs = sc->sc_stream_in; 1726 ifaceno = vs->vs_ifaceno; 1727 1728 /* TODO: If format comes from a previously enumerated format from 1729 this driver then it should have format and frame 1730 indicies. */ 1731 /* 1732 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX( 1733 (struct uvideo_format *)format); 1734 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX( 1735 (struct uvideo_format *)format); 1736 */ 1737 1738 /* probe/GET_CUR to see what the hardware is offering */ 1739 uvideo_init_probe_data(&probe); 1740 1741 err = uvideo_stream_probe(vs, UR_GET_CUR, &probe); 1742 if (err != USBD_NORMAL_COMPLETION) { 1743 DPRINTF(("uvideo: error probe/GET_CUR: %s (%d)\n", 1744 usbd_errstr(err), err)); 1745 } 1746 1747 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX( 1748 (struct uvideo_format *)vs->vs_default_format); 1749 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX( 1750 (struct uvideo_format *)vs->vs_default_format); 1751 USETDW(probe.dwFrameInterval, vs->vs_frame_interval); 1752 1753 /* commit/SET_CUR. Fourth step is to set the alternate 1754 * interface. Currently the fourth step is in 1755 * uvideo_start_transfer. Maybe move it here? */ 1756 err = uvideo_stream_commit(vs, UR_SET_CUR, &probe); 1757 if (err != USBD_NORMAL_COMPLETION) { 1758 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 1759 usbd_errstr(err), err)); 1760 return EIO; 1761 } 1762 1763 DPRINTFN(15, ("uvideo_set_format: committing to format: " 1764 "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " 1765 "dwFrameInterval=%d wKeyFrameRate=%d wPFrameRate=%d " 1766 "wCompQuality=%d wCompWindowSize=%d wDelay=%d " 1767 "dwMaxVideoFrameSize=%d dwMaxPayloadTransferSize=%d", 1768 UGETW(probe.bmHint), 1769 probe.bFormatIndex, 1770 probe.bFrameIndex, 1771 UGETDW(probe.dwFrameInterval), 1772 UGETW(probe.wKeyFrameRate), 1773 UGETW(probe.wPFrameRate), 1774 UGETW(probe.wCompQuality), 1775 UGETW(probe.wCompWindowSize), 1776 UGETW(probe.wDelay), 1777 UGETDW(probe.dwMaxVideoFrameSize), 1778 UGETDW(probe.dwMaxPayloadTransferSize))); 1779 if (vs->vs_probelen == 34) { 1780 DPRINTFN(15, (" dwClockFrequency=%d bmFramingInfo=0x%02x " 1781 "bPreferedVersion=%d bMinVersion=%d " 1782 "bMaxVersion=%d", 1783 UGETDW(probe.dwClockFrequency), 1784 probe.bmFramingInfo, 1785 probe.bPreferedVersion, 1786 probe.bMinVersion, 1787 probe.bMaxVersion)); 1788 } 1789 DPRINTFN(15, ("\n")); 1790 1791 vs->vs_frame_interval = UGETDW(probe.dwFrameInterval); 1792 vs->vs_max_payload_size = UGETDW(probe.dwMaxPayloadTransferSize); 1793 1794 uvfmt = uvideo_stream_find_format(vs, probe.bFormatIndex, 1795 probe.bFrameIndex); 1796 if (uvfmt != NULL) { 1797 *format = uvfmt->format; 1798 } else { 1799 DPRINTF(("uvideo_set_format: matching format not found\n")); 1800 *format = *vs->vs_default_format; 1801 } 1802 1803 DPRINTF(("uvideo_set_format: pixeltype is %d\n", format->pixel_format)); 1804 1805 format->sample_size = UGETDW(probe.dwMaxVideoFrameSize); 1806 format->stride = format->sample_size / format->height; 1807 /* format->color.primaries = */ 1808 /* format->color.gamma_function = */ 1809 /* format->color.matrix_coeff = */ 1810 /* format->interlace_flags = */ 1811 1812 vs->vs_current_format = *format; 1813 1814 return 0; 1815 } 1816 1817 1818 static int 1819 uvideo_start_transfer(void *addr) 1820 { 1821 struct uvideo_softc *sc = addr; 1822 struct uvideo_stream *vs; 1823 int s, err; 1824 1825 /* FIXME: this functions should be stream specific */ 1826 vs = SLIST_FIRST(&sc->sc_stream_list); 1827 s = splusb(); 1828 err = uvideo_stream_start_xfer(vs); 1829 splx(s); 1830 1831 return err; 1832 } 1833 1834 static int 1835 uvideo_stop_transfer(void *addr) 1836 { 1837 struct uvideo_softc *sc; 1838 int err; 1839 1840 sc = addr; 1841 1842 err = uvideo_stream_stop_xfer(sc->sc_stream_in); 1843 return err; 1844 } 1845 1846 1847 static int 1848 uvideo_get_control_group(void *addr, struct video_control_group *group) 1849 { 1850 struct uvideo_softc *sc; 1851 usb_device_request_t req; 1852 usbd_status err; 1853 uint8_t control_id, ent_id, data[16]; 1854 uint16_t len; 1855 int s; 1856 1857 sc = addr; 1858 1859 /* request setup */ 1860 switch (group->group_id) { 1861 case VIDEO_CONTROL_PANTILT_RELATIVE: 1862 if (group->length != 4) 1863 return EINVAL; 1864 1865 return EINVAL; 1866 case VIDEO_CONTROL_SHARPNESS: 1867 if (group->length != 1) 1868 return EINVAL; 1869 1870 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 1871 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 1872 len = 2; 1873 break; 1874 default: 1875 return EINVAL; 1876 } 1877 1878 /* do request */ 1879 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 1880 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 1881 UVIDEO_REQUEST_TYPE_GET; 1882 req.bRequest = UR_GET_CUR; 1883 USETW(req.wValue, control_id << 8); 1884 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 1885 USETW(req.wLength, len); 1886 1887 s = splusb(); 1888 err = usbd_do_request(sc->sc_udev, &req, data); 1889 splx(s); 1890 if (err != USBD_NORMAL_COMPLETION) { 1891 DPRINTF(("uvideo_set_control: error %s (%d)\n", 1892 usbd_errstr(err), err)); 1893 return EIO; /* TODO: more detail here? */ 1894 } 1895 1896 /* extract request data */ 1897 switch (group->group_id) { 1898 case VIDEO_CONTROL_SHARPNESS: 1899 group->control[0].value = UGETW(data); 1900 break; 1901 default: 1902 return EINVAL; 1903 } 1904 1905 return 0; 1906 } 1907 1908 1909 static int 1910 uvideo_set_control_group(void *addr, const struct video_control_group *group) 1911 { 1912 struct uvideo_softc *sc; 1913 usb_device_request_t req; 1914 usbd_status err; 1915 uint8_t control_id, ent_id, data[16]; /* long enough for all controls */ 1916 uint16_t len; 1917 int s; 1918 1919 sc = addr; 1920 1921 switch (group->group_id) { 1922 case VIDEO_CONTROL_PANTILT_RELATIVE: 1923 if (group->length != 4) 1924 return EINVAL; 1925 1926 if (group->control[0].value != 0 || 1927 group->control[0].value != 1 || 1928 group->control[0].value != 0xff) 1929 return ERANGE; 1930 1931 if (group->control[2].value != 0 || 1932 group->control[2].value != 1 || 1933 group->control[2].value != 0xff) 1934 return ERANGE; 1935 1936 control_id = UVIDEO_CT_PANTILT_RELATIVE_CONTROL; 1937 ent_id = 1; /* TODO: hardcoded logitech camera terminal */ 1938 len = 4; 1939 data[0] = group->control[0].value; 1940 data[1] = group->control[1].value; 1941 data[2] = group->control[2].value; 1942 data[3] = group->control[3].value; 1943 break; 1944 case VIDEO_CONTROL_BRIGHTNESS: 1945 if (group->length != 1) 1946 return EINVAL; 1947 control_id = UVIDEO_PU_BRIGHTNESS_CONTROL; 1948 ent_id = 2; 1949 len = 2; 1950 USETW(data, group->control[0].value); 1951 break; 1952 case VIDEO_CONTROL_GAIN: 1953 if (group->length != 1) 1954 return EINVAL; 1955 control_id = UVIDEO_PU_GAIN_CONTROL; 1956 ent_id = 2; 1957 len = 2; 1958 USETW(data, group->control[0].value); 1959 break; 1960 case VIDEO_CONTROL_SHARPNESS: 1961 if (group->length != 1) 1962 return EINVAL; 1963 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 1964 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 1965 len = 2; 1966 USETW(data, group->control[0].value); 1967 break; 1968 default: 1969 return EINVAL; 1970 } 1971 1972 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 1973 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 1974 UVIDEO_REQUEST_TYPE_SET; 1975 req.bRequest = UR_SET_CUR; 1976 USETW(req.wValue, control_id << 8); 1977 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 1978 USETW(req.wLength, len); 1979 1980 s = splusb(); 1981 err = usbd_do_request(sc->sc_udev, &req, data); 1982 splx(s); 1983 if (err != USBD_NORMAL_COMPLETION) { 1984 DPRINTF(("uvideo_set_control: error %s (%d)\n", 1985 usbd_errstr(err), err)); 1986 return EIO; /* TODO: more detail here? */ 1987 } 1988 1989 return 0; 1990 } 1991 1992 static usbd_status 1993 uvideo_stream_probe_and_commit(struct uvideo_stream *vs, 1994 uint8_t action, uint8_t control, 1995 void *data) 1996 { 1997 usb_device_request_t req; 1998 1999 switch (action) { 2000 case UR_SET_CUR: 2001 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 2002 USETW(req.wLength, vs->vs_probelen); 2003 break; 2004 case UR_GET_CUR: 2005 case UR_GET_MIN: 2006 case UR_GET_MAX: 2007 case UR_GET_DEF: 2008 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2009 USETW(req.wLength, vs->vs_probelen); 2010 break; 2011 case UR_GET_INFO: 2012 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2013 USETW(req.wLength, sizeof(uByte)); 2014 break; 2015 case UR_GET_LEN: 2016 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2017 USETW(req.wLength, sizeof(uWord)); /* is this right? */ 2018 break; 2019 default: 2020 DPRINTF(("uvideo_probe_and_commit: " 2021 "unknown request action %d\n", action)); 2022 return USBD_NOT_STARTED; 2023 } 2024 2025 req.bRequest = action; 2026 USETW2(req.wValue, control, 0); 2027 USETW2(req.wIndex, 0, vs->vs_ifaceno); 2028 2029 return (usbd_do_request_flags(vs->vs_parent->sc_udev, &req, data, 2030 0, 0, 2031 USBD_DEFAULT_TIMEOUT)); 2032 } 2033 2034 static void 2035 uvideo_init_probe_data(uvideo_probe_and_commit_data_t *probe) 2036 { 2037 /* all zeroes tells camera to choose what it wants */ 2038 memset(probe, 0, sizeof(*probe)); 2039 } 2040 2041 2042 #ifdef _MODULE 2043 2044 MODULE(MODULE_CLASS_DRIVER, uvideo, "usb"); 2045 2046 CFDRIVER_DECL(uvideo, DV_DULL, NULL); 2047 extern struct cfattach uvideo_ca; 2048 static struct cfdata uvideo_cfdata[] = { 2049 { 2050 .cf_name = "uvideo", 2051 .cf_atname = "uvideo", 2052 .cf_unit = 0, 2053 .cf_fstate = FSTATE_STAR, 2054 .cf_loc = NULL, 2055 .cf_flags = 0, 2056 .cf_pspec = NULL, 2057 }, 2058 { NULL } 2059 }; 2060 2061 static int 2062 uvideo_modcmd(modcmd_t cmd, void *arg) 2063 { 2064 int err; 2065 2066 2067 switch (cmd) { 2068 case MODULE_CMD_INIT: 2069 DPRINTF(("uvideo: attempting to load\n")); 2070 2071 err = config_cfdriver_attach(&uvideo_cd); 2072 if (err) 2073 return err; 2074 err = config_cfattach_attach("uvideo", &uvideo_ca); 2075 if (err) { 2076 config_cfdriver_detach(&uvideo_cd); 2077 return err; 2078 } 2079 err = config_cfdata_attach(uvideo_cfdata, 1); 2080 if (err) { 2081 config_cfattach_detach("uvideo", &uvideo_ca); 2082 config_cfdriver_detach(&uvideo_cd); 2083 return err; 2084 } 2085 DPRINTF(("uvideo: loaded module\n")); 2086 return 0; 2087 case MODULE_CMD_FINI: 2088 DPRINTF(("uvideo: attempting to unload module\n")); 2089 err = config_cfdriver_detach(&uvideo_cd); 2090 if (err) 2091 return err; 2092 config_cfattach_detach("uvideo", &uvideo_ca); 2093 config_cfdriver_detach(&uvideo_cd); 2094 DPRINTF(("uvideo: module unload\n")); 2095 return 0; 2096 default: 2097 return ENOTTY; 2098 } 2099 } 2100 2101 #endif /* _MODULE */ 2102 2103 2104 #ifdef UVIDEO_DEBUG 2105 /* Some functions to print out descriptors. Mostly useless other than 2106 * debugging/exploration purposes. */ 2107 2108 2109 static void 2110 print_bitmap(const uByte *start, uByte nbytes) 2111 { 2112 int byte, bit; 2113 2114 /* most significant first */ 2115 for (byte = nbytes-1; byte >= 0; --byte) { 2116 if (byte < nbytes-1) printf("-"); 2117 for (bit = 7; bit >= 0; --bit) 2118 printf("%01d", (start[byte] >> bit) &1); 2119 } 2120 } 2121 2122 static void 2123 print_descriptor(const usb_descriptor_t *desc) 2124 { 2125 static int current_class = -1; 2126 static int current_subclass = -1; 2127 2128 if (desc->bDescriptorType == UDESC_INTERFACE) { 2129 const usb_interface_descriptor_t *id; 2130 id = (const usb_interface_descriptor_t *)desc; 2131 current_class = id->bInterfaceClass; 2132 current_subclass = id->bInterfaceSubClass; 2133 print_interface_descriptor(id); 2134 printf("\n"); 2135 return; 2136 } 2137 2138 printf(" "); /* indent */ 2139 2140 if (current_class == UICLASS_VIDEO) { 2141 switch (current_subclass) { 2142 case UISUBCLASS_VIDEOCONTROL: 2143 print_vc_descriptor(desc); 2144 break; 2145 case UISUBCLASS_VIDEOSTREAMING: 2146 print_vs_descriptor(desc); 2147 break; 2148 case UISUBCLASS_VIDEOCOLLECTION: 2149 printf("uvc collection: len=%d type=0x%02x", 2150 desc->bLength, desc->bDescriptorType); 2151 break; 2152 } 2153 } else { 2154 printf("non uvc descriptor len=%d type=0x%02x", 2155 desc->bLength, desc->bDescriptorType); 2156 } 2157 2158 printf("\n"); 2159 } 2160 2161 static void 2162 print_vc_descriptor(const usb_descriptor_t *desc) 2163 { 2164 const uvideo_descriptor_t *vcdesc; 2165 2166 printf("VC "); 2167 2168 switch (desc->bDescriptorType) { 2169 case UDESC_ENDPOINT: 2170 print_endpoint_descriptor( 2171 (const usb_endpoint_descriptor_t *)desc); 2172 break; 2173 case UDESC_CS_INTERFACE: 2174 vcdesc = (const uvideo_descriptor_t *)desc; 2175 switch (vcdesc->bDescriptorSubtype) { 2176 case UDESC_VC_HEADER: 2177 print_vc_header_descriptor( 2178 (const uvideo_vc_header_descriptor_t *) 2179 vcdesc); 2180 break; 2181 case UDESC_INPUT_TERMINAL: 2182 switch (UGETW( 2183 ((const uvideo_input_terminal_descriptor_t *) 2184 vcdesc)->wTerminalType)) { 2185 case UVIDEO_ITT_CAMERA: 2186 print_camera_terminal_descriptor( 2187 (const uvideo_camera_terminal_descriptor_t *)vcdesc); 2188 break; 2189 default: 2190 print_input_terminal_descriptor( 2191 (const uvideo_input_terminal_descriptor_t *)vcdesc); 2192 break; 2193 } 2194 break; 2195 case UDESC_OUTPUT_TERMINAL: 2196 print_output_terminal_descriptor( 2197 (const uvideo_output_terminal_descriptor_t *) 2198 vcdesc); 2199 break; 2200 case UDESC_SELECTOR_UNIT: 2201 print_selector_unit_descriptor( 2202 (const uvideo_selector_unit_descriptor_t *) 2203 vcdesc); 2204 break; 2205 case UDESC_PROCESSING_UNIT: 2206 print_processing_unit_descriptor( 2207 (const uvideo_processing_unit_descriptor_t *) 2208 vcdesc); 2209 break; 2210 case UDESC_EXTENSION_UNIT: 2211 print_extension_unit_descriptor( 2212 (const uvideo_extension_unit_descriptor_t *) 2213 vcdesc); 2214 break; 2215 default: 2216 printf("class specific interface " 2217 "len=%d type=0x%02x subtype=0x%02x", 2218 vcdesc->bLength, 2219 vcdesc->bDescriptorType, 2220 vcdesc->bDescriptorSubtype); 2221 break; 2222 } 2223 break; 2224 case UDESC_CS_ENDPOINT: 2225 vcdesc = (const uvideo_descriptor_t *)desc; 2226 switch (vcdesc->bDescriptorSubtype) { 2227 case UDESC_VC_INTERRUPT_ENDPOINT: 2228 print_interrupt_endpoint_descriptor( 2229 (const uvideo_vc_interrupt_endpoint_descriptor_t *) 2230 vcdesc); 2231 break; 2232 default: 2233 printf("class specific endpoint " 2234 "len=%d type=0x%02x subtype=0x%02x", 2235 vcdesc->bLength, 2236 vcdesc->bDescriptorType, 2237 vcdesc->bDescriptorSubtype); 2238 break; 2239 } 2240 break; 2241 default: 2242 printf("unknown: len=%d type=0x%02x", 2243 desc->bLength, desc->bDescriptorType); 2244 break; 2245 } 2246 } 2247 2248 static void 2249 print_vs_descriptor(const usb_descriptor_t *desc) 2250 { 2251 const uvideo_descriptor_t * vsdesc; 2252 printf("VS "); 2253 2254 switch (desc->bDescriptorType) { 2255 case UDESC_ENDPOINT: 2256 print_endpoint_descriptor( 2257 (const usb_endpoint_descriptor_t *)desc); 2258 break; 2259 case UDESC_CS_INTERFACE: 2260 vsdesc = (const uvideo_descriptor_t *)desc; 2261 switch (vsdesc->bDescriptorSubtype) { 2262 case UDESC_VS_INPUT_HEADER: 2263 print_vs_input_header_descriptor( 2264 (const uvideo_vs_input_header_descriptor_t *) 2265 vsdesc); 2266 break; 2267 case UDESC_VS_OUTPUT_HEADER: 2268 print_vs_output_header_descriptor( 2269 (const uvideo_vs_output_header_descriptor_t *) 2270 vsdesc); 2271 break; 2272 case UDESC_VS_FORMAT_UNCOMPRESSED: 2273 print_vs_format_uncompressed_descriptor( 2274 (const uvideo_vs_format_uncompressed_descriptor_t *) 2275 vsdesc); 2276 break; 2277 case UDESC_VS_FRAME_UNCOMPRESSED: 2278 print_vs_frame_uncompressed_descriptor( 2279 (const uvideo_vs_frame_uncompressed_descriptor_t *) 2280 vsdesc); 2281 break; 2282 case UDESC_VS_FORMAT_MJPEG: 2283 print_vs_format_mjpeg_descriptor( 2284 (const uvideo_vs_format_mjpeg_descriptor_t *) 2285 vsdesc); 2286 break; 2287 case UDESC_VS_FRAME_MJPEG: 2288 print_vs_frame_mjpeg_descriptor( 2289 (const uvideo_vs_frame_mjpeg_descriptor_t *) 2290 vsdesc); 2291 break; 2292 case UDESC_VS_FORMAT_DV: 2293 print_vs_format_dv_descriptor( 2294 (const uvideo_vs_format_dv_descriptor_t *) 2295 vsdesc); 2296 break; 2297 default: 2298 printf("unknown cs interface: len=%d type=0x%02x " 2299 "subtype=0x%02x", 2300 vsdesc->bLength, vsdesc->bDescriptorType, 2301 vsdesc->bDescriptorSubtype); 2302 } 2303 break; 2304 default: 2305 printf("unknown: len=%d type=0x%02x", 2306 desc->bLength, desc->bDescriptorType); 2307 break; 2308 } 2309 } 2310 2311 static void 2312 print_interface_descriptor(const usb_interface_descriptor_t *id) 2313 { 2314 printf("Interface: Len=%d Type=0x%02x " 2315 "bInterfaceNumber=0x%02x " 2316 "bAlternateSetting=0x%02x bNumEndpoints=0x%02x " 2317 "bInterfaceClass=0x%02x bInterfaceSubClass=0x%02x " 2318 "bInterfaceProtocol=0x%02x iInterface=0x%02x", 2319 id->bLength, 2320 id->bDescriptorType, 2321 id->bInterfaceNumber, 2322 id->bAlternateSetting, 2323 id->bNumEndpoints, 2324 id->bInterfaceClass, 2325 id->bInterfaceSubClass, 2326 id->bInterfaceProtocol, 2327 id->iInterface); 2328 } 2329 2330 static void 2331 print_endpoint_descriptor(const usb_endpoint_descriptor_t *desc) 2332 { 2333 printf("Endpoint: Len=%d Type=0x%02x " 2334 "bEndpointAddress=0x%02x ", 2335 desc->bLength, 2336 desc->bDescriptorType, 2337 desc->bEndpointAddress); 2338 printf("bmAttributes="); 2339 print_bitmap(&desc->bmAttributes, 1); 2340 printf(" wMaxPacketSize=%d bInterval=%d", 2341 UGETW(desc->wMaxPacketSize), 2342 desc->bInterval); 2343 } 2344 2345 static void 2346 print_vc_header_descriptor( 2347 const uvideo_vc_header_descriptor_t *desc) 2348 { 2349 printf("Interface Header: " 2350 "Len=%d Type=0x%02x Subtype=0x%02x " 2351 "bcdUVC=%d wTotalLength=%d " 2352 "dwClockFrequency=%d bInCollection=%d", 2353 desc->bLength, 2354 desc->bDescriptorType, 2355 desc->bDescriptorSubtype, 2356 UGETW(desc->bcdUVC), 2357 UGETW(desc->wTotalLength), 2358 UGETDW(desc->dwClockFrequency), 2359 desc->bInCollection); 2360 } 2361 2362 static void 2363 print_input_terminal_descriptor( 2364 const uvideo_input_terminal_descriptor_t *desc) 2365 { 2366 printf("Input Terminal: " 2367 "Len=%d Type=0x%02x Subtype=0x%02x " 2368 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2369 "iTerminal=%d", 2370 desc->bLength, 2371 desc->bDescriptorType, 2372 desc->bDescriptorSubtype, 2373 desc->bTerminalID, 2374 UGETW(desc->wTerminalType), 2375 desc->bAssocTerminal, 2376 desc->iTerminal); 2377 } 2378 2379 static void 2380 print_output_terminal_descriptor( 2381 const uvideo_output_terminal_descriptor_t *desc) 2382 { 2383 printf("Output Terminal: " 2384 "Len=%d Type=0x%02x Subtype=0x%02x " 2385 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2386 "bSourceID=%d iTerminal=%d", 2387 desc->bLength, 2388 desc->bDescriptorType, 2389 desc->bDescriptorSubtype, 2390 desc->bTerminalID, 2391 UGETW(desc->wTerminalType), 2392 desc->bAssocTerminal, 2393 desc->bSourceID, 2394 desc->iTerminal); 2395 } 2396 2397 static void 2398 print_camera_terminal_descriptor( 2399 const uvideo_camera_terminal_descriptor_t *desc) 2400 { 2401 printf("Camera Terminal: " 2402 "Len=%d Type=0x%02x Subtype=0x%02x " 2403 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2404 "iTerminal=%d " 2405 "wObjectiveFocalLengthMin/Max=%d/%d " 2406 "wOcularFocalLength=%d " 2407 "bControlSize=%d ", 2408 desc->bLength, 2409 desc->bDescriptorType, 2410 desc->bDescriptorSubtype, 2411 desc->bTerminalID, 2412 UGETW(desc->wTerminalType), 2413 desc->bAssocTerminal, 2414 desc->iTerminal, 2415 UGETW(desc->wObjectiveFocalLengthMin), 2416 UGETW(desc->wObjectiveFocalLengthMax), 2417 UGETW(desc->wOcularFocalLength), 2418 desc->bControlSize); 2419 printf("bmControls="); 2420 print_bitmap(desc->bmControls, desc->bControlSize); 2421 } 2422 2423 static void 2424 print_selector_unit_descriptor( 2425 const uvideo_selector_unit_descriptor_t *desc) 2426 { 2427 int i; 2428 const uByte *b; 2429 printf("Selector Unit: " 2430 "Len=%d Type=0x%02x Subtype=0x%02x " 2431 "bUnitID=%d bNrInPins=%d ", 2432 desc->bLength, 2433 desc->bDescriptorType, 2434 desc->bDescriptorSubtype, 2435 desc->bUnitID, 2436 desc->bNrInPins); 2437 printf("baSourceIDs="); 2438 b = &desc->baSourceID[0]; 2439 for (i = 0; i < desc->bNrInPins; ++i) 2440 printf("%d ", *b++); 2441 printf("iSelector=%d", *b); 2442 } 2443 2444 static void 2445 print_processing_unit_descriptor( 2446 const uvideo_processing_unit_descriptor_t *desc) 2447 { 2448 const uByte *b; 2449 2450 printf("Processing Unit: " 2451 "Len=%d Type=0x%02x Subtype=0x%02x " 2452 "bUnitID=%d bSourceID=%d wMaxMultiplier=%d bControlSize=%d ", 2453 desc->bLength, 2454 desc->bDescriptorType, 2455 desc->bDescriptorSubtype, 2456 desc->bUnitID, 2457 desc->bSourceID, 2458 UGETW(desc->wMaxMultiplier), 2459 desc->bControlSize); 2460 printf("bmControls="); 2461 print_bitmap(desc->bmControls, desc->bControlSize); 2462 b = &desc->bControlSize + desc->bControlSize + 1; 2463 printf(" iProcessing=%d bmVideoStandards=", *b); 2464 b += 1; 2465 print_bitmap(b, 1); 2466 } 2467 2468 static void 2469 print_extension_unit_descriptor( 2470 const uvideo_extension_unit_descriptor_t *desc) 2471 { 2472 const uByte * byte; 2473 uByte controlbytes; 2474 int i; 2475 2476 printf("Extension Unit: " 2477 "Len=%d Type=0x%02x Subtype=0x%02x " 2478 "bUnitID=%d ", 2479 desc->bLength, 2480 desc->bDescriptorType, 2481 desc->bDescriptorSubtype, 2482 desc->bUnitID); 2483 2484 printf("guidExtensionCode="); 2485 usb_guid_print(&desc->guidExtensionCode); 2486 printf(" "); 2487 2488 printf("bNumControls=%d bNrInPins=%d ", 2489 desc->bNumControls, 2490 desc->bNrInPins); 2491 2492 printf("baSourceIDs="); 2493 byte = &desc->baSourceID[0]; 2494 for (i = 0; i < desc->bNrInPins; ++i) 2495 printf("%d ", *byte++); 2496 2497 controlbytes = *byte++; 2498 printf("bControlSize=%d ", controlbytes); 2499 printf("bmControls="); 2500 print_bitmap(byte, controlbytes); 2501 2502 byte += controlbytes; 2503 printf(" iExtension=%d", *byte); 2504 } 2505 2506 static void 2507 print_interrupt_endpoint_descriptor( 2508 const uvideo_vc_interrupt_endpoint_descriptor_t *desc) 2509 { 2510 printf("Interrupt Endpoint: " 2511 "Len=%d Type=0x%02x Subtype=0x%02x " 2512 "wMaxTransferSize=%d ", 2513 desc->bLength, 2514 desc->bDescriptorType, 2515 desc->bDescriptorSubtype, 2516 UGETW(desc->wMaxTransferSize)); 2517 } 2518 2519 2520 static void 2521 print_vs_output_header_descriptor( 2522 const uvideo_vs_output_header_descriptor_t *desc) 2523 { 2524 printf("Interface Output Header: " 2525 "Len=%d Type=0x%02x Subtype=0x%02x " 2526 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2527 "bTerminalLink=%d bControlSize=%d", 2528 desc->bLength, 2529 desc->bDescriptorType, 2530 desc->bDescriptorSubtype, 2531 desc->bNumFormats, 2532 UGETW(desc->wTotalLength), 2533 desc->bEndpointAddress, 2534 desc->bTerminalLink, 2535 desc->bControlSize); 2536 } 2537 2538 static void 2539 print_vs_input_header_descriptor( 2540 const uvideo_vs_input_header_descriptor_t *desc) 2541 { 2542 printf("Interface Input Header: " 2543 "Len=%d Type=0x%02x Subtype=0x%02x " 2544 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2545 "bmInfo=%x bTerminalLink=%d bStillCaptureMethod=%d " 2546 "bTriggerSupport=%d bTriggerUsage=%d bControlSize=%d ", 2547 desc->bLength, 2548 desc->bDescriptorType, 2549 desc->bDescriptorSubtype, 2550 desc->bNumFormats, 2551 UGETW(desc->wTotalLength), 2552 desc->bEndpointAddress, 2553 desc->bmInfo, 2554 desc->bTerminalLink, 2555 desc->bStillCaptureMethod, 2556 desc->bTriggerSupport, 2557 desc->bTriggerUsage, 2558 desc->bControlSize); 2559 print_bitmap(desc->bmaControls, desc->bControlSize); 2560 } 2561 2562 static void 2563 print_vs_format_uncompressed_descriptor( 2564 const uvideo_vs_format_uncompressed_descriptor_t *desc) 2565 { 2566 printf("Format Uncompressed: " 2567 "Len=%d Type=0x%02x Subtype=0x%02x " 2568 "bFormatIndex=%d bNumFrameDescriptors=%d ", 2569 desc->bLength, 2570 desc->bDescriptorType, 2571 desc->bDescriptorSubtype, 2572 desc->bFormatIndex, 2573 desc->bNumFrameDescriptors); 2574 usb_guid_print(&desc->guidFormat); 2575 printf(" bBitsPerPixel=%d bDefaultFrameIndex=%d " 2576 "bAspectRatioX=%d bAspectRatioY=%d " 2577 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2578 desc->bBitsPerPixel, 2579 desc->bDefaultFrameIndex, 2580 desc->bAspectRatioX, 2581 desc->bAspectRatioY, 2582 desc->bmInterlaceFlags, 2583 desc->bCopyProtect); 2584 } 2585 2586 static void 2587 print_vs_frame_uncompressed_descriptor( 2588 const uvideo_vs_frame_uncompressed_descriptor_t *desc) 2589 { 2590 printf("Frame Uncompressed: " 2591 "Len=%d Type=0x%02x Subtype=0x%02x " 2592 "bFrameIndex=%d bmCapabilities=0x%02x " 2593 "wWidth=%d wHeight=%d dwMinBitRate=%d dwMaxBitRate=%d " 2594 "dwMaxVideoFrameBufferSize=%d dwDefaultFrameInterval=%d " 2595 "bFrameIntervalType=%d", 2596 desc->bLength, 2597 desc->bDescriptorType, 2598 desc->bDescriptorSubtype, 2599 desc->bFrameIndex, 2600 desc->bmCapabilities, 2601 UGETW(desc->wWidth), 2602 UGETW(desc->wHeight), 2603 UGETDW(desc->dwMinBitRate), 2604 UGETDW(desc->dwMaxBitRate), 2605 UGETDW(desc->dwMaxVideoFrameBufferSize), 2606 UGETDW(desc->dwDefaultFrameInterval), 2607 desc->bFrameIntervalType); 2608 } 2609 2610 static void 2611 print_vs_format_mjpeg_descriptor( 2612 const uvideo_vs_format_mjpeg_descriptor_t *desc) 2613 { 2614 printf("MJPEG format: " 2615 "Len=%d Type=0x%02x Subtype=0x%02x " 2616 "bFormatIndex=%d bNumFrameDescriptors=%d bmFlags=0x%02x " 2617 "bDefaultFrameIndex=%d bAspectRatioX=%d bAspectRatioY=%d " 2618 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2619 desc->bLength, 2620 desc->bDescriptorType, 2621 desc->bDescriptorSubtype, 2622 desc->bFormatIndex, 2623 desc->bNumFrameDescriptors, 2624 desc->bmFlags, 2625 desc->bDefaultFrameIndex, 2626 desc->bAspectRatioX, 2627 desc->bAspectRatioY, 2628 desc->bmInterlaceFlags, 2629 desc->bCopyProtect); 2630 } 2631 2632 static void 2633 print_vs_frame_mjpeg_descriptor( 2634 const uvideo_vs_frame_mjpeg_descriptor_t *desc) 2635 { 2636 printf("MJPEG frame: " 2637 "Len=%d Type=0x%02x Subtype=0x%02x " 2638 "bFrameIndex=%d bmCapabilities=0x%02x " 2639 "wWidth=%d wHeight=%d dwMinBitRate=%d dwMaxBitRate=%d " 2640 "dwMaxVideoFrameBufferSize=%d dwDefaultFrameInterval=%d " 2641 "bFrameIntervalType=%d", 2642 desc->bLength, 2643 desc->bDescriptorType, 2644 desc->bDescriptorSubtype, 2645 desc->bFrameIndex, 2646 desc->bmCapabilities, 2647 UGETW(desc->wWidth), 2648 UGETW(desc->wHeight), 2649 UGETDW(desc->dwMinBitRate), 2650 UGETDW(desc->dwMaxBitRate), 2651 UGETDW(desc->dwMaxVideoFrameBufferSize), 2652 UGETDW(desc->dwDefaultFrameInterval), 2653 desc->bFrameIntervalType); 2654 } 2655 2656 static void 2657 print_vs_format_dv_descriptor( 2658 const uvideo_vs_format_dv_descriptor_t *desc) 2659 { 2660 printf("MJPEG format: " 2661 "Len=%d Type=0x%02x Subtype=0x%02x " 2662 "bFormatIndex=%d dwMaxVideoFrameBufferSize=%d " 2663 "bFormatType/Rate=%d bFormatType/Format=%d", 2664 desc->bLength, 2665 desc->bDescriptorType, 2666 desc->bDescriptorSubtype, 2667 desc->bFormatIndex, 2668 UGETDW(desc->dwMaxVideoFrameBufferSize), 2669 UVIDEO_GET_DV_FREQ(desc->bFormatType), 2670 UVIDEO_GET_DV_FORMAT(desc->bFormatType)); 2671 } 2672 2673 #endif /* !UVIDEO_DEBUG */ 2674 2675 static const usb_descriptor_t * 2676 usb_desc_iter_peek_next(usbd_desc_iter_t *iter) 2677 { 2678 const usb_descriptor_t *desc; 2679 2680 if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) { 2681 if (iter->cur != iter->end) 2682 printf("usb_desc_iter_peek_next: bad descriptor\n"); 2683 return NULL; 2684 } 2685 desc = (const usb_descriptor_t *)iter->cur; 2686 if (desc->bLength == 0) { 2687 printf("usb_desc_iter_peek_next: descriptor length = 0\n"); 2688 return NULL; 2689 } 2690 if (iter->cur + desc->bLength > iter->end) { 2691 printf("usb_desc_iter_peek_next: descriptor length too large\n"); 2692 return NULL; 2693 } 2694 return desc; 2695 } 2696 2697 /* Return the next interface descriptor, skipping over any other 2698 * descriptors. Returns NULL at the end or on error. */ 2699 static const usb_interface_descriptor_t * 2700 usb_desc_iter_next_interface(usbd_desc_iter_t *iter) 2701 { 2702 const usb_descriptor_t *desc; 2703 2704 while ((desc = usb_desc_iter_peek_next(iter)) != NULL && 2705 desc->bDescriptorType != UDESC_INTERFACE) 2706 { 2707 usb_desc_iter_next(iter); 2708 } 2709 2710 return (const usb_interface_descriptor_t *)usb_desc_iter_next(iter); 2711 } 2712 2713 /* Returns the next non-interface descriptor, returning NULL when the 2714 * next descriptor would be an interface descriptor. */ 2715 static const usb_descriptor_t * 2716 usb_desc_iter_next_non_interface(usbd_desc_iter_t *iter) 2717 { 2718 const usb_descriptor_t *desc; 2719 2720 if ((desc = usb_desc_iter_peek_next(iter)) != NULL && 2721 desc->bDescriptorType != UDESC_INTERFACE) 2722 { 2723 return (usb_desc_iter_next(iter)); 2724 } else { 2725 return NULL; 2726 } 2727 } 2728 2729 #ifdef UVIDEO_DEBUG 2730 static void 2731 usb_guid_print(const usb_guid_t *guid) 2732 { 2733 printf("%04X-%02X-%02X-", 2734 UGETDW(guid->data1), 2735 UGETW(guid->data2), 2736 UGETW(guid->data3)); 2737 printf("%02X%02X-", 2738 guid->data4[0], 2739 guid->data4[1]); 2740 printf("%02X%02X%02X%02X%02X%02X", 2741 guid->data4[2], 2742 guid->data4[3], 2743 guid->data4[4], 2744 guid->data4[5], 2745 guid->data4[6], 2746 guid->data4[7]); 2747 } 2748 #endif /* !UVIDEO_DEBUG */ 2749 2750 /* Returns less than zero, zero, or greater than zero if uguid is less 2751 * than, equal to, or greater than guid. */ 2752 static int 2753 usb_guid_cmp(const usb_guid_t *uguid, const guid_t *guid) 2754 { 2755 if (guid->data1 > UGETDW(uguid->data1)) 2756 return 1; 2757 else if (guid->data1 < UGETDW(uguid->data1)) 2758 return -1; 2759 2760 if (guid->data2 > UGETW(uguid->data2)) 2761 return 1; 2762 else if (guid->data2 < UGETW(uguid->data2)) 2763 return -1; 2764 2765 if (guid->data3 > UGETW(uguid->data3)) 2766 return 1; 2767 else if (guid->data3 < UGETW(uguid->data3)) 2768 return -1; 2769 2770 return (memcmp(guid->data4, uguid->data4, 8)); 2771 } 2772
Indexes created Wed Sep 24 05:09:52 GMT 2025