uvideo.c revision 1.4
1 /* $NetBSD: uvideo.c,v 1.4 2008/09/18 02:57:07 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 1.4 2008/09/18 02:57:07 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 const usb_guid_t *guid; 1190 1191 switch (format_desc->bDescriptorSubtype) { 1192 case UDESC_VS_FORMAT_UNCOMPRESSED: 1193 subtype = UDESC_VS_FRAME_UNCOMPRESSED; 1194 default_index = GET(uvideo_vs_format_uncompressed_descriptor_t, 1195 format_desc, 1196 bDefaultFrameIndex); 1197 break; 1198 case UDESC_VS_FORMAT_FRAME_BASED: 1199 subtype = UDESC_VS_FRAME_FRAME_BASED; 1200 default_index = GET(uvideo_format_frame_based_descriptor_t, 1201 format_desc, 1202 bDefaultFrameIndex); 1203 break; 1204 1205 break; 1206 case UDESC_VS_FORMAT_MJPEG: 1207 subtype = UDESC_VS_FRAME_MJPEG; 1208 default_index = GET(uvideo_vs_format_mjpeg_descriptor_t, 1209 format_desc, 1210 bDefaultFrameIndex); 1211 break; 1212 default: 1213 DPRINTF(("uvideo: unknown frame based format %d\n", 1214 format_desc->bDescriptorSubtype)); 1215 return USBD_INVAL; 1216 } 1217 1218 /* Iterate through frame descriptors directly following the 1219 * format descriptor, and add a format to the format list for 1220 * each frame descriptor. */ 1221 while ((uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_peek_next(iter)) && 1222 (uvdesc != NULL) && (uvdesc->bDescriptorSubtype == subtype)) 1223 { 1224 uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_next(iter); 1225 1226 format = kmem_alloc(sizeof(struct uvideo_format), KM_NOSLEEP); 1227 if (format == NULL) { 1228 DPRINTF(("uvideo: failed to alloc video format\n")); 1229 return USBD_NOMEM; 1230 } 1231 1232 switch (format_desc->bDescriptorSubtype) { 1233 case UDESC_VS_FORMAT_UNCOMPRESSED: 1234 guid = GETP(uvideo_vs_format_uncompressed_descriptor_t, 1235 format_desc, 1236 guidFormat); 1237 1238 if (usb_guid_cmp(guid, 1239 &uvideo_guid_format_yuy2) == 0) { 1240 format->format.pixel_format = 1241 VIDEO_FORMAT_YUY2; 1242 } else if (usb_guid_cmp(guid, 1243 &uvideo_guid_format_nv12) == 0) { 1244 format->format.pixel_format = 1245 VIDEO_FORMAT_NV12; 1246 } else { 1247 format->format.pixel_format = 1248 VIDEO_FORMAT_UNDEFINED; 1249 #ifdef UVIDEO_DEBUG 1250 if (uvideodebug) { 1251 DPRINTF(("uvideo: format undefined ")); 1252 usb_guid_print(guid); 1253 DPRINTF(("\n")); 1254 } 1255 #endif 1256 } 1257 1258 UVIDEO_FORMAT_INIT_FRAME_BASED( 1259 uvideo_vs_format_uncompressed_descriptor_t, 1260 format_desc, 1261 uvideo_vs_frame_uncompressed_descriptor_t, 1262 uvdesc, 1263 format); 1264 index = GET(uvideo_vs_frame_uncompressed_descriptor_t, 1265 uvdesc, 1266 bFrameIndex); 1267 break; 1268 case UDESC_VS_FORMAT_MJPEG: 1269 format->format.pixel_format = VIDEO_FORMAT_MJPEG; 1270 UVIDEO_FORMAT_INIT_FRAME_BASED( 1271 uvideo_vs_format_mjpeg_descriptor_t, 1272 format_desc, 1273 uvideo_vs_frame_mjpeg_descriptor_t, 1274 uvdesc, 1275 format); 1276 index = GET(uvideo_vs_frame_mjpeg_descriptor_t, 1277 uvdesc, 1278 bFrameIndex); 1279 break; 1280 case UDESC_VS_FORMAT_FRAME_BASED: 1281 format->format.pixel_format = VIDEO_FORMAT_UNDEFINED; 1282 UVIDEO_FORMAT_INIT_FRAME_BASED( 1283 uvideo_format_frame_based_descriptor_t, 1284 format_desc, 1285 uvideo_frame_frame_based_descriptor_t, 1286 uvdesc, 1287 format); 1288 index = GET(uvideo_frame_frame_based_descriptor_t, 1289 uvdesc, 1290 bFrameIndex); 1291 break; 1292 default: 1293 /* shouldn't ever get here */ 1294 DPRINTF(("uvideo: unknown frame based format %d\n", 1295 format_desc->bDescriptorSubtype)); 1296 kmem_free(format, sizeof(struct uvideo_format)); 1297 return USBD_INVAL; 1298 } 1299 1300 SIMPLEQ_INSERT_TAIL(&vs->vs_formats, format, entries); 1301 1302 if (vs->vs_default_format == NULL && index == default_index) 1303 vs->vs_default_format = &format->format; 1304 } 1305 1306 return USBD_NORMAL_COMPLETION; 1307 } 1308 1309 static int 1310 uvideo_stream_start_xfer(struct uvideo_stream *vs) 1311 { 1312 struct uvideo_softc *sc = vs->vs_parent; 1313 struct uvideo_bulk_xfer *bx; 1314 struct uvideo_isoc_xfer *ix; 1315 uint32_t vframe_len; /* rough bytes per video frame */ 1316 uint32_t uframe_len; /* bytes per usb frame (TODO: or microframe?) */ 1317 uint32_t nframes; /* number of usb frames (TODO: or microframs?) */ 1318 int i; 1319 1320 struct uvideo_alternate *alt, *alt_maybe; 1321 usbd_status err; 1322 1323 switch (vs->vs_xfer_type) { 1324 case UE_BULK: 1325 bx = &vs->vs_xfer.bulk; 1326 return 0; 1327 case UE_ISOCHRONOUS: 1328 ix = &vs->vs_xfer.isoc; 1329 1330 vframe_len = vs->vs_max_frame_size; /* + nframes * HEADER */ 1331 uframe_len = UVIDEO_FRAME_INTERVAL_UNITS_PER_USB_FRAME * 1332 vframe_len / vs->vs_frame_interval; 1333 nframes = (vframe_len / uframe_len); 1334 if (nframes == 0) 1335 nframes++; 1336 1337 nframes = 64; /* ehci requires power of 2. doesn't 1338 * work well with logitech/uhci */ 1339 1340 /* Choose an alternate interface most suitable for 1341 * this format. Choose the smallest size that can 1342 * contain max_payload_size. 1343 * 1344 * It is assumed that the list is sorted in descending 1345 * order from largest to smallest packet size. 1346 * 1347 * TODO: what should the strategy be for choosing an 1348 * alt interface? 1349 */ 1350 alt = NULL; 1351 SLIST_FOREACH(alt_maybe, &ix->ix_altlist, entries) { 1352 /* TODO: define "packet" and "payload". I think 1353 * several packets can make up one payload which would 1354 * call into question this method of selecting an 1355 * alternate interface... */ 1356 if (alt_maybe->max_packet_size >= 1357 vs->vs_max_payload_size) 1358 alt = alt_maybe; 1359 else 1360 break; 1361 } 1362 1363 if (alt == NULL) { 1364 DPRINTF(("uvideo_stream_start_xfer: " 1365 "no suitable alternate interface found\n")); 1366 return EINVAL; 1367 } 1368 1369 DPRINTFN(15,("uvideo_stream_start_xfer: " 1370 "choosing alternate interface " 1371 "%d wMaxPacketSize=%d bInterval=%d\n", 1372 alt->altno, alt->max_packet_size, alt->interval)); 1373 1374 err = usbd_set_interface(vs->vs_iface, alt->altno); 1375 if (err != USBD_NORMAL_COMPLETION) { 1376 DPRINTF(("uvideo_open: error setting alt interface: %s (%d)\n", 1377 usbd_errstr(err), err)); 1378 return EIO; 1379 } 1380 1381 /* TODO: "packet" not same as frame */ 1382 uframe_len = alt->max_packet_size; 1383 1384 ix->ix_nframes = nframes; 1385 ix->ix_uframe_len = uframe_len; 1386 for (i = 0; i < UVIDEO_NXFERS; i++) { 1387 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1388 isoc->i_frlengths = 1389 kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, 1390 KM_SLEEP); 1391 if (isoc->i_frlengths == NULL) { 1392 DPRINTF(("uvideo: failed to alloc frlengths:" 1393 "%s (%d)\n", 1394 usbd_errstr(err), err)); 1395 return ENOMEM; 1396 } 1397 } 1398 1399 err = usbd_open_pipe(vs->vs_iface, ix->ix_endpt, 1400 USBD_EXCLUSIVE_USE, &ix->ix_pipe); 1401 if (err != USBD_NORMAL_COMPLETION) { 1402 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1403 usbd_errstr(err), err)); 1404 return EIO; 1405 } 1406 1407 for (i = 0; i < UVIDEO_NXFERS; i++) { 1408 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1409 isoc->i_xfer = usbd_alloc_xfer(sc->sc_udev); 1410 if (isoc->i_xfer == NULL) { 1411 DPRINTF(("uvideo: failed to alloc xfer: %s" 1412 " (%d)\n", 1413 usbd_errstr(err), err)); 1414 return ENOMEM; 1415 } 1416 1417 isoc->i_buf = usbd_alloc_buffer(isoc->i_xfer, 1418 nframes * uframe_len); 1419 if (isoc->i_xfer == NULL) { 1420 DPRINTF(("uvideo: failed to alloc buf: %s" 1421 " (%d)\n", 1422 usbd_errstr(err), err)); 1423 return ENOMEM; 1424 } 1425 } 1426 1427 uvideo_stream_recv_isoc_start(vs); 1428 1429 return 0; 1430 default: 1431 /* should never get here */ 1432 DPRINTF(("uvideo_stream_start_xfer: unknown xfer type 0x%x\n", 1433 vs->vs_xfer_type)); 1434 return EINVAL; 1435 } 1436 } 1437 1438 static int 1439 uvideo_stream_stop_xfer(struct uvideo_stream *vs) 1440 { 1441 struct uvideo_bulk_xfer *bx; 1442 struct uvideo_isoc_xfer *ix; 1443 usbd_status err; 1444 int i; 1445 1446 switch (vs->vs_xfer_type) { 1447 case UE_BULK: 1448 bx = &vs->vs_xfer.bulk; 1449 return 0; 1450 case UE_ISOCHRONOUS: 1451 ix = &vs->vs_xfer.isoc; 1452 if (ix->ix_pipe != NULL) { 1453 usbd_abort_pipe(ix->ix_pipe); 1454 usbd_close_pipe(ix->ix_pipe); 1455 ix->ix_pipe = NULL; 1456 } 1457 1458 for (i = 0; i < UVIDEO_NXFERS; i++) { 1459 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1460 if (isoc->i_xfer != NULL) { 1461 usbd_free_buffer(isoc->i_xfer); 1462 usbd_free_xfer(isoc->i_xfer); 1463 isoc->i_xfer = NULL; 1464 } 1465 1466 if (isoc->i_frlengths != NULL) { 1467 kmem_free(isoc->i_frlengths, 1468 sizeof(isoc->i_frlengths[0]) * 1469 ix->ix_nframes); 1470 isoc->i_frlengths = NULL; 1471 } 1472 } 1473 1474 /* Give it some time to settle */ 1475 usbd_delay_ms(vs->vs_parent->sc_udev, 1000); 1476 1477 /* Set to zero bandwidth alternate interface zero */ 1478 err = usbd_set_interface(vs->vs_iface, 0); 1479 if (err != USBD_NORMAL_COMPLETION) { 1480 DPRINTF(("uvideo_stream_stop_transfer: " 1481 "error setting zero bandwidth interface: " 1482 "%s (%d)\n", 1483 usbd_errstr(err), err)); 1484 return EIO; 1485 } 1486 1487 return 0; 1488 default: 1489 /* should never get here */ 1490 DPRINTF(("uvideo_stream_stop_xfer: unknown xfer type 0x%x\n", 1491 vs->vs_xfer_type)); 1492 return EINVAL; 1493 } 1494 } 1495 1496 static usbd_status 1497 uvideo_stream_recv_isoc_start(struct uvideo_stream *vs) 1498 { 1499 int i; 1500 1501 for (i = 0; i < UVIDEO_NXFERS; i++) 1502 uvideo_stream_recv_isoc_start1(&vs->vs_xfer.isoc.ix_i[i]); 1503 1504 return USBD_NORMAL_COMPLETION; 1505 } 1506 1507 /* Initiate a usb transfer. */ 1508 static usbd_status 1509 uvideo_stream_recv_isoc_start1(struct uvideo_isoc *isoc) 1510 { 1511 struct uvideo_isoc_xfer *ix; 1512 usbd_status err; 1513 int i; 1514 1515 ix = isoc->i_ix; 1516 1517 for (i = 0; i < ix->ix_nframes; ++i) 1518 isoc->i_frlengths[i] = ix->ix_uframe_len; 1519 1520 usbd_setup_isoc_xfer(isoc->i_xfer, 1521 ix->ix_pipe, 1522 isoc, 1523 isoc->i_frlengths, 1524 ix->ix_nframes, 1525 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1526 uvideo_stream_recv_isoc_complete); 1527 1528 err = usbd_transfer(isoc->i_xfer); 1529 if (err != USBD_IN_PROGRESS) { 1530 DPRINTF(("uvideo_stream_recv_start: " 1531 "usbd_transfer status=%s (%d)\n", 1532 usbd_errstr(err), err)); 1533 } 1534 return err; 1535 } 1536 1537 /* Callback on completion of usb isoc transfer */ 1538 static void 1539 uvideo_stream_recv_isoc_complete(usbd_xfer_handle xfer, 1540 usbd_private_handle priv, 1541 usbd_status status) 1542 { 1543 struct uvideo_stream *vs; 1544 struct uvideo_isoc_xfer *ix; 1545 struct uvideo_isoc *isoc; 1546 int i; 1547 uint32_t count; 1548 const uvideo_payload_header_t *hdr; 1549 uint8_t *buf; 1550 struct video_payload payload; 1551 1552 isoc = priv; 1553 vs = isoc->i_vs; 1554 ix = isoc->i_ix; 1555 1556 if (status != USBD_NORMAL_COMPLETION) { 1557 DPRINTF(("uvideo_stream_recv_isoc_complete: status=%s (%d)\n", 1558 usbd_errstr(status), status)); 1559 1560 if (status == USBD_STALLED) 1561 usbd_clear_endpoint_stall_async(ix->ix_pipe); 1562 else 1563 return; 1564 } else { 1565 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1566 1567 if (count == 0) { 1568 /* DPRINTF(("uvideo: zero length transfer\n")); */ 1569 /* return; */ /* TODO: what to do here? restarting 1570 * can lead to infinite loop */ 1571 } 1572 1573 hdr = (const uvideo_payload_header_t *)isoc->i_buf; 1574 1575 for (i = 0, buf = isoc->i_buf; 1576 i < ix->ix_nframes; 1577 ++i, buf += ix->ix_uframe_len) 1578 { 1579 if (isoc->i_frlengths[i] == 0) 1580 continue; 1581 1582 hdr = (uvideo_payload_header_t *)buf; 1583 1584 payload.data = buf + hdr->bHeaderLength; 1585 payload.size = isoc->i_frlengths[i] - 1586 hdr->bHeaderLength; 1587 payload.frameno = hdr->bmHeaderInfo & UV_FRAME_ID; 1588 payload.end_of_frame = 1589 hdr->bmHeaderInfo & UV_END_OF_FRAME; 1590 1591 video_submit_payload(vs->vs_parent->sc_videodev, 1592 &payload); 1593 } 1594 } 1595 1596 uvideo_stream_recv_isoc_start1(isoc); 1597 } 1598 1599 1600 /* 1601 * uvideo_open - probe and commit video format and start receiving 1602 * video data 1603 */ 1604 static int 1605 uvideo_open(void *addr, int flags) 1606 { 1607 struct uvideo_softc *sc; 1608 1609 sc = addr; 1610 1611 DPRINTF(("uvideo_open: sc=%p\n", sc)); 1612 if (sc->sc_dying) 1613 return EIO; 1614 1615 return 0; 1616 } 1617 1618 1619 static void 1620 uvideo_close(void *addr) 1621 { 1622 struct uvideo_softc *sc; 1623 1624 sc = addr; 1625 1626 if (sc->sc_state != UVIDEO_STATE_CLOSED) { 1627 sc->sc_state = UVIDEO_STATE_CLOSED; 1628 } 1629 } 1630 1631 static const char * 1632 uvideo_get_devname(void *addr) 1633 { 1634 struct uvideo_softc *sc = addr; 1635 return sc->sc_devname; 1636 } 1637 1638 static int 1639 uvideo_enum_format(void *addr, uint32_t index, struct video_format *format) 1640 { 1641 struct uvideo_softc *sc = addr; 1642 struct uvideo_stream *vs = sc->sc_stream_in; 1643 1644 if (sc->sc_dying) 1645 return EIO; 1646 1647 if (index != 0) 1648 return EINVAL; 1649 1650 /* TODO: actually enumerate formats */ 1651 *format = *vs->vs_default_format; 1652 1653 return 0; 1654 } 1655 1656 /* 1657 * uvideo_get_format 1658 */ 1659 static int 1660 uvideo_get_format(void *addr, struct video_format *format) 1661 { 1662 struct uvideo_softc *sc = addr; 1663 struct uvideo_stream *vs = sc->sc_stream_in; 1664 1665 if (sc->sc_dying) 1666 return EIO; 1667 1668 if (vs->vs_current_format.priv != -1) 1669 *format = vs->vs_current_format; 1670 else 1671 *format = *vs->vs_default_format; 1672 1673 return 0; 1674 } 1675 1676 1677 /* 1678 * uvideo_set_format - TODO: this is boken and does nothing 1679 */ 1680 static int 1681 uvideo_set_format(void *addr, struct video_format *format) 1682 { 1683 struct uvideo_softc *sc; 1684 struct uvideo_stream *vs; 1685 struct uvideo_format *uvfmt; 1686 uvideo_probe_and_commit_data_t probe; 1687 uint8_t ifaceno; 1688 usbd_status err; 1689 1690 sc = addr; 1691 1692 DPRINTF(("uvideo_set_format: sc=%p\n", sc)); 1693 if (sc->sc_dying) 1694 return EIO; 1695 1696 vs = sc->sc_stream_in; 1697 ifaceno = vs->vs_ifaceno; 1698 1699 uvideo_init_probe_data(&probe); 1700 1701 /* If format comes from a previously enumerated format from 1702 this driver then it should have format and frame 1703 indicies. */ 1704 /* 1705 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX( 1706 (struct uvideo_format *)format); 1707 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX( 1708 (struct uvideo_format *)format); 1709 */ 1710 1711 /* First step is to probe/SET_CUR. Prior to this, state is 1712 * undefined. TODO: this should be moved or changed so that 1713 * it isn't done on every set_format, only the first one.*/ 1714 1715 /* Xbox camera does not like zeros during SET_CUR, at least 1716 * for FormatIndex, FrameIndex, and FrameInterval. For now, 1717 * initialize with the default values. */ 1718 err = uvideo_stream_probe(vs, UR_GET_DEF, &probe); 1719 if (err != USBD_NORMAL_COMPLETION) { 1720 DPRINTF(("uvideo: error probe/GET_DEF: %s (%d)\n", 1721 usbd_errstr(err), err)); 1722 } 1723 DPRINTFN(15, ("uvideo_set_format: default format is: " 1724 "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " 1725 "dwFrameInterval=%d wKeyFrameRate=%d wPFrameRate=%d " 1726 "wCompQuality=%d wCompWindowSize=%d wDelay=%d " 1727 "dwMaxVideoFrameSize=%d dwMaxPayloadTransferSize=%d\n", 1728 UGETW(probe.bmHint), 1729 probe.bFormatIndex, 1730 probe.bFrameIndex, 1731 UGETDW(probe.dwFrameInterval), 1732 UGETW(probe.wKeyFrameRate), 1733 UGETW(probe.wPFrameRate), 1734 UGETW(probe.wCompQuality), 1735 UGETW(probe.wCompWindowSize), 1736 UGETW(probe.wDelay), 1737 UGETDW(probe.dwMaxVideoFrameSize), 1738 UGETDW(probe.dwMaxPayloadTransferSize))); 1739 1740 err = uvideo_stream_probe(vs, UR_SET_CUR, &probe); 1741 if (err != USBD_NORMAL_COMPLETION) { 1742 DPRINTF(("uvideo_open: error initializing format: %s (%d)\n", 1743 usbd_errstr(err), err)); 1744 return EIO; 1745 } 1746 1747 /* Second step is probe/GET_CUR to see what the hardware is 1748 * offering. */ 1749 uvideo_init_probe_data(&probe); 1750 err = uvideo_stream_probe(vs, UR_GET_CUR, &probe); 1751 if (err != USBD_NORMAL_COMPLETION) { 1752 DPRINTF(("uvideo: error probe/GET_CUR: %s (%d)\n", 1753 usbd_errstr(err), err)); 1754 } 1755 1756 /* Third step is commit/SET_CUR. Fourth step is to set the 1757 * alternate interface. Currently the fourth step is in 1758 * uvideo_start_transfer. Maybe move it here? */ 1759 err = uvideo_stream_commit(vs, UR_SET_CUR, &probe); 1760 if (err != USBD_NORMAL_COMPLETION) { 1761 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 1762 usbd_errstr(err), err)); 1763 return EIO; 1764 } 1765 1766 DPRINTFN(15, ("uvideo_set_format: committing to format: " 1767 "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " 1768 "dwFrameInterval=%d wKeyFrameRate=%d wPFrameRate=%d " 1769 "wCompQuality=%d wCompWindowSize=%d wDelay=%d " 1770 "dwMaxVideoFrameSize=%d dwMaxPayloadTransferSize=%d", 1771 UGETW(probe.bmHint), 1772 probe.bFormatIndex, 1773 probe.bFrameIndex, 1774 UGETDW(probe.dwFrameInterval), 1775 UGETW(probe.wKeyFrameRate), 1776 UGETW(probe.wPFrameRate), 1777 UGETW(probe.wCompQuality), 1778 UGETW(probe.wCompWindowSize), 1779 UGETW(probe.wDelay), 1780 UGETDW(probe.dwMaxVideoFrameSize), 1781 UGETDW(probe.dwMaxPayloadTransferSize))); 1782 if (vs->vs_probelen == 34) { 1783 DPRINTFN(15, (" dwClockFrequency=%d bmFramingInfo=0x%02x " 1784 "bPreferedVersion=%d bMinVersion=%d " 1785 "bMaxVersion=%d", 1786 UGETDW(probe.dwClockFrequency), 1787 probe.bmFramingInfo, 1788 probe.bPreferedVersion, 1789 probe.bMinVersion, 1790 probe.bMaxVersion)); 1791 } 1792 DPRINTFN(15, ("\n")); 1793 1794 vs->vs_frame_interval = UGETDW(probe.dwFrameInterval); 1795 vs->vs_max_payload_size = UGETDW(probe.dwMaxPayloadTransferSize); 1796 1797 uvfmt = uvideo_stream_find_format(vs, probe.bFormatIndex, 1798 probe.bFrameIndex); 1799 if (uvfmt != NULL) { 1800 *format = uvfmt->format; 1801 } else { 1802 DPRINTF(("uvideo_set_format: matching format not found\n")); 1803 *format = *vs->vs_default_format; 1804 } 1805 1806 DPRINTF(("uvideo_set_format: pixeltype is %d\n", format->pixel_format)); 1807 1808 format->sample_size = UGETDW(probe.dwMaxVideoFrameSize); 1809 /* format->stride = width * bits_per_px / 8 */ 1810 /* format->color.primaries = */ 1811 /* format->color.gamma_function = */ 1812 /* format->color.matrix_coeff = */ 1813 /* format->interlace_flags = */ 1814 1815 vs->vs_current_format = *format; 1816 1817 return 0; 1818 } 1819 1820 1821 static int 1822 uvideo_start_transfer(void *addr) 1823 { 1824 struct uvideo_softc *sc = addr; 1825 struct uvideo_stream *vs; 1826 int s, err; 1827 1828 /* FIXME: this functions should be stream specific */ 1829 vs = SLIST_FIRST(&sc->sc_stream_list); 1830 s = splusb(); 1831 err = uvideo_stream_start_xfer(vs); 1832 splx(s); 1833 1834 return err; 1835 } 1836 1837 static int 1838 uvideo_stop_transfer(void *addr) 1839 { 1840 struct uvideo_softc *sc; 1841 int err; 1842 1843 sc = addr; 1844 1845 err = uvideo_stream_stop_xfer(sc->sc_stream_in); 1846 return err; 1847 } 1848 1849 1850 static int 1851 uvideo_get_control_group(void *addr, struct video_control_group *group) 1852 { 1853 struct uvideo_softc *sc; 1854 usb_device_request_t req; 1855 usbd_status err; 1856 uint8_t control_id, ent_id, data[16]; 1857 uint16_t len; 1858 int s; 1859 1860 sc = addr; 1861 1862 /* request setup */ 1863 switch (group->group_id) { 1864 case VIDEO_CONTROL_PANTILT_RELATIVE: 1865 if (group->length != 4) 1866 return EINVAL; 1867 1868 return EINVAL; 1869 case VIDEO_CONTROL_SHARPNESS: 1870 if (group->length != 1) 1871 return EINVAL; 1872 1873 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 1874 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 1875 len = 2; 1876 break; 1877 default: 1878 return EINVAL; 1879 } 1880 1881 /* do request */ 1882 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 1883 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 1884 UVIDEO_REQUEST_TYPE_GET; 1885 req.bRequest = UR_GET_CUR; 1886 USETW(req.wValue, control_id << 8); 1887 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 1888 USETW(req.wLength, len); 1889 1890 s = splusb(); 1891 err = usbd_do_request(sc->sc_udev, &req, data); 1892 splx(s); 1893 if (err != USBD_NORMAL_COMPLETION) { 1894 DPRINTF(("uvideo_set_control: error %s (%d)\n", 1895 usbd_errstr(err), err)); 1896 return EIO; /* TODO: more detail here? */ 1897 } 1898 1899 /* extract request data */ 1900 switch (group->group_id) { 1901 case VIDEO_CONTROL_SHARPNESS: 1902 group->control[0].value = UGETW(data); 1903 break; 1904 default: 1905 return EINVAL; 1906 } 1907 1908 return 0; 1909 } 1910 1911 1912 static int 1913 uvideo_set_control_group(void *addr, const struct video_control_group *group) 1914 { 1915 struct uvideo_softc *sc; 1916 usb_device_request_t req; 1917 usbd_status err; 1918 uint8_t control_id, ent_id, data[16]; /* long enough for all controls */ 1919 uint16_t len; 1920 int s; 1921 1922 sc = addr; 1923 1924 switch (group->group_id) { 1925 case VIDEO_CONTROL_PANTILT_RELATIVE: 1926 if (group->length != 4) 1927 return EINVAL; 1928 1929 if (group->control[0].value != 0 || 1930 group->control[0].value != 1 || 1931 group->control[0].value != 0xff) 1932 return ERANGE; 1933 1934 if (group->control[2].value != 0 || 1935 group->control[2].value != 1 || 1936 group->control[2].value != 0xff) 1937 return ERANGE; 1938 1939 control_id = UVIDEO_CT_PANTILT_RELATIVE_CONTROL; 1940 ent_id = 1; /* TODO: hardcoded logitech camera terminal */ 1941 len = 4; 1942 data[0] = group->control[0].value; 1943 data[1] = group->control[1].value; 1944 data[2] = group->control[2].value; 1945 data[3] = group->control[3].value; 1946 break; 1947 case VIDEO_CONTROL_BRIGHTNESS: 1948 if (group->length != 1) 1949 return EINVAL; 1950 control_id = UVIDEO_PU_BRIGHTNESS_CONTROL; 1951 ent_id = 2; 1952 len = 2; 1953 USETW(data, group->control[0].value); 1954 break; 1955 case VIDEO_CONTROL_GAIN: 1956 if (group->length != 1) 1957 return EINVAL; 1958 control_id = UVIDEO_PU_GAIN_CONTROL; 1959 ent_id = 2; 1960 len = 2; 1961 USETW(data, group->control[0].value); 1962 break; 1963 case VIDEO_CONTROL_SHARPNESS: 1964 if (group->length != 1) 1965 return EINVAL; 1966 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 1967 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 1968 len = 2; 1969 USETW(data, group->control[0].value); 1970 break; 1971 default: 1972 return EINVAL; 1973 } 1974 1975 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 1976 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 1977 UVIDEO_REQUEST_TYPE_SET; 1978 req.bRequest = UR_SET_CUR; 1979 USETW(req.wValue, control_id << 8); 1980 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 1981 USETW(req.wLength, len); 1982 1983 s = splusb(); 1984 err = usbd_do_request(sc->sc_udev, &req, data); 1985 splx(s); 1986 if (err != USBD_NORMAL_COMPLETION) { 1987 DPRINTF(("uvideo_set_control: error %s (%d)\n", 1988 usbd_errstr(err), err)); 1989 return EIO; /* TODO: more detail here? */ 1990 } 1991 1992 return 0; 1993 } 1994 1995 static usbd_status 1996 uvideo_stream_probe_and_commit(struct uvideo_stream *vs, 1997 uint8_t action, uint8_t control, 1998 void *data) 1999 { 2000 usb_device_request_t req; 2001 2002 switch (action) { 2003 case UR_SET_CUR: 2004 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 2005 USETW(req.wLength, vs->vs_probelen); 2006 break; 2007 case UR_GET_CUR: 2008 case UR_GET_MIN: 2009 case UR_GET_MAX: 2010 case UR_GET_DEF: 2011 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2012 USETW(req.wLength, vs->vs_probelen); 2013 break; 2014 case UR_GET_INFO: 2015 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2016 USETW(req.wLength, sizeof(uByte)); 2017 break; 2018 case UR_GET_LEN: 2019 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2020 USETW(req.wLength, sizeof(uWord)); /* is this right? */ 2021 break; 2022 default: 2023 DPRINTF(("uvideo_probe_and_commit: " 2024 "unknown request action %d\n", action)); 2025 return USBD_NOT_STARTED; 2026 } 2027 2028 req.bRequest = action; 2029 USETW2(req.wValue, control, 0); 2030 USETW2(req.wIndex, 0, vs->vs_ifaceno); 2031 2032 return (usbd_do_request_flags(vs->vs_parent->sc_udev, &req, data, 2033 0, 0, 2034 USBD_DEFAULT_TIMEOUT)); 2035 } 2036 2037 static void 2038 uvideo_init_probe_data(uvideo_probe_and_commit_data_t *probe) 2039 { 2040 /* all zeroes tells camera to choose what it wants */ 2041 memset(probe, 0, sizeof(*probe)); 2042 } 2043 2044 2045 #ifdef _MODULE 2046 2047 MODULE(MODULE_CLASS_DRIVER, uvideo, "usb"); 2048 2049 CFDRIVER_DECL(uvideo, DV_DULL, NULL); 2050 extern struct cfattach uvideo_ca; 2051 static struct cfdata uvideo_cfdata[] = { 2052 { 2053 .cf_name = "uvideo", 2054 .cf_atname = "uvideo", 2055 .cf_unit = 0, 2056 .cf_fstate = FSTATE_STAR, 2057 .cf_loc = NULL, 2058 .cf_flags = 0, 2059 .cf_pspec = NULL, 2060 }, 2061 { NULL } 2062 }; 2063 2064 static int 2065 uvideo_modcmd(modcmd_t cmd, void *arg) 2066 { 2067 int err; 2068 2069 2070 switch (cmd) { 2071 case MODULE_CMD_INIT: 2072 DPRINTF(("uvideo: attempting to load\n")); 2073 2074 err = config_cfdriver_attach(&uvideo_cd); 2075 if (err) 2076 return err; 2077 err = config_cfattach_attach("uvideo", &uvideo_ca); 2078 if (err) { 2079 config_cfdriver_detach(&uvideo_cd); 2080 return err; 2081 } 2082 err = config_cfdata_attach(uvideo_cfdata, 1); 2083 if (err) { 2084 config_cfattach_detach("uvideo", &uvideo_ca); 2085 config_cfdriver_detach(&uvideo_cd); 2086 return err; 2087 } 2088 DPRINTF(("uvideo: loaded module\n")); 2089 return 0; 2090 case MODULE_CMD_FINI: 2091 DPRINTF(("uvideo: attempting to unload module\n")); 2092 err = config_cfdriver_detach(&uvideo_cd); 2093 if (err) 2094 return err; 2095 config_cfattach_detach("uvideo", &uvideo_ca); 2096 config_cfdriver_detach(&uvideo_cd); 2097 DPRINTF(("uvideo: module unload\n")); 2098 return 0; 2099 default: 2100 return ENOTTY; 2101 } 2102 } 2103 2104 #endif /* _MODULE */ 2105 2106 2107 #ifdef UVIDEO_DEBUG 2108 /* Some functions to print out descriptors. Mostly useless other than 2109 * debugging/exploration purposes. */ 2110 2111 2112 static void 2113 print_bitmap(const uByte *start, uByte nbytes) 2114 { 2115 int byte, bit; 2116 2117 /* most significant first */ 2118 for (byte = nbytes-1; byte >= 0; --byte) { 2119 if (byte < nbytes-1) printf("-"); 2120 for (bit = 7; bit >= 0; --bit) 2121 printf("%01d", (start[byte] >> bit) &1); 2122 } 2123 } 2124 2125 static void 2126 print_descriptor(const usb_descriptor_t *desc) 2127 { 2128 static int current_class = -1; 2129 static int current_subclass = -1; 2130 2131 if (desc->bDescriptorType == UDESC_INTERFACE) { 2132 const usb_interface_descriptor_t *id; 2133 id = (const usb_interface_descriptor_t *)desc; 2134 current_class = id->bInterfaceClass; 2135 current_subclass = id->bInterfaceSubClass; 2136 print_interface_descriptor(id); 2137 printf("\n"); 2138 return; 2139 } 2140 2141 printf(" "); /* indent */ 2142 2143 if (current_class == UICLASS_VIDEO) { 2144 switch (current_subclass) { 2145 case UISUBCLASS_VIDEOCONTROL: 2146 print_vc_descriptor(desc); 2147 break; 2148 case UISUBCLASS_VIDEOSTREAMING: 2149 print_vs_descriptor(desc); 2150 break; 2151 case UISUBCLASS_VIDEOCOLLECTION: 2152 printf("uvc collection: len=%d type=0x%02x", 2153 desc->bLength, desc->bDescriptorType); 2154 break; 2155 } 2156 } else { 2157 printf("non uvc descriptor len=%d type=0x%02x", 2158 desc->bLength, desc->bDescriptorType); 2159 } 2160 2161 printf("\n"); 2162 } 2163 2164 static void 2165 print_vc_descriptor(const usb_descriptor_t *desc) 2166 { 2167 const uvideo_descriptor_t *vcdesc; 2168 2169 printf("VC "); 2170 2171 switch (desc->bDescriptorType) { 2172 case UDESC_ENDPOINT: 2173 print_endpoint_descriptor( 2174 (const usb_endpoint_descriptor_t *)desc); 2175 break; 2176 case UDESC_CS_INTERFACE: 2177 vcdesc = (const uvideo_descriptor_t *)desc; 2178 switch (vcdesc->bDescriptorSubtype) { 2179 case UDESC_VC_HEADER: 2180 print_vc_header_descriptor( 2181 (const uvideo_vc_header_descriptor_t *) 2182 vcdesc); 2183 break; 2184 case UDESC_INPUT_TERMINAL: 2185 switch (UGETW( 2186 ((const uvideo_input_terminal_descriptor_t *) 2187 vcdesc)->wTerminalType)) { 2188 case UVIDEO_ITT_CAMERA: 2189 print_camera_terminal_descriptor( 2190 (const uvideo_camera_terminal_descriptor_t *)vcdesc); 2191 break; 2192 default: 2193 print_input_terminal_descriptor( 2194 (const uvideo_input_terminal_descriptor_t *)vcdesc); 2195 break; 2196 } 2197 break; 2198 case UDESC_OUTPUT_TERMINAL: 2199 print_output_terminal_descriptor( 2200 (const uvideo_output_terminal_descriptor_t *) 2201 vcdesc); 2202 break; 2203 case UDESC_SELECTOR_UNIT: 2204 print_selector_unit_descriptor( 2205 (const uvideo_selector_unit_descriptor_t *) 2206 vcdesc); 2207 break; 2208 case UDESC_PROCESSING_UNIT: 2209 print_processing_unit_descriptor( 2210 (const uvideo_processing_unit_descriptor_t *) 2211 vcdesc); 2212 break; 2213 case UDESC_EXTENSION_UNIT: 2214 print_extension_unit_descriptor( 2215 (const uvideo_extension_unit_descriptor_t *) 2216 vcdesc); 2217 break; 2218 default: 2219 printf("class specific interface " 2220 "len=%d type=0x%02x subtype=0x%02x", 2221 vcdesc->bLength, 2222 vcdesc->bDescriptorType, 2223 vcdesc->bDescriptorSubtype); 2224 break; 2225 } 2226 break; 2227 case UDESC_CS_ENDPOINT: 2228 vcdesc = (const uvideo_descriptor_t *)desc; 2229 switch (vcdesc->bDescriptorSubtype) { 2230 case UDESC_VC_INTERRUPT_ENDPOINT: 2231 print_interrupt_endpoint_descriptor( 2232 (const uvideo_vc_interrupt_endpoint_descriptor_t *) 2233 vcdesc); 2234 break; 2235 default: 2236 printf("class specific endpoint " 2237 "len=%d type=0x%02x subtype=0x%02x", 2238 vcdesc->bLength, 2239 vcdesc->bDescriptorType, 2240 vcdesc->bDescriptorSubtype); 2241 break; 2242 } 2243 break; 2244 default: 2245 printf("unknown: len=%d type=0x%02x", 2246 desc->bLength, desc->bDescriptorType); 2247 break; 2248 } 2249 } 2250 2251 static void 2252 print_vs_descriptor(const usb_descriptor_t *desc) 2253 { 2254 const uvideo_descriptor_t * vsdesc; 2255 printf("VS "); 2256 2257 switch (desc->bDescriptorType) { 2258 case UDESC_ENDPOINT: 2259 print_endpoint_descriptor( 2260 (const usb_endpoint_descriptor_t *)desc); 2261 break; 2262 case UDESC_CS_INTERFACE: 2263 vsdesc = (const uvideo_descriptor_t *)desc; 2264 switch (vsdesc->bDescriptorSubtype) { 2265 case UDESC_VS_INPUT_HEADER: 2266 print_vs_input_header_descriptor( 2267 (const uvideo_vs_input_header_descriptor_t *) 2268 vsdesc); 2269 break; 2270 case UDESC_VS_OUTPUT_HEADER: 2271 print_vs_output_header_descriptor( 2272 (const uvideo_vs_output_header_descriptor_t *) 2273 vsdesc); 2274 break; 2275 case UDESC_VS_FORMAT_UNCOMPRESSED: 2276 print_vs_format_uncompressed_descriptor( 2277 (const uvideo_vs_format_uncompressed_descriptor_t *) 2278 vsdesc); 2279 break; 2280 case UDESC_VS_FRAME_UNCOMPRESSED: 2281 print_vs_frame_uncompressed_descriptor( 2282 (const uvideo_vs_frame_uncompressed_descriptor_t *) 2283 vsdesc); 2284 break; 2285 case UDESC_VS_FORMAT_MJPEG: 2286 print_vs_format_mjpeg_descriptor( 2287 (const uvideo_vs_format_mjpeg_descriptor_t *) 2288 vsdesc); 2289 break; 2290 case UDESC_VS_FRAME_MJPEG: 2291 print_vs_frame_mjpeg_descriptor( 2292 (const uvideo_vs_frame_mjpeg_descriptor_t *) 2293 vsdesc); 2294 break; 2295 case UDESC_VS_FORMAT_DV: 2296 print_vs_format_dv_descriptor( 2297 (const uvideo_vs_format_dv_descriptor_t *) 2298 vsdesc); 2299 break; 2300 default: 2301 printf("unknown cs interface: len=%d type=0x%02x " 2302 "subtype=0x%02x", 2303 vsdesc->bLength, vsdesc->bDescriptorType, 2304 vsdesc->bDescriptorSubtype); 2305 } 2306 break; 2307 default: 2308 printf("unknown: len=%d type=0x%02x", 2309 desc->bLength, desc->bDescriptorType); 2310 break; 2311 } 2312 } 2313 2314 static void 2315 print_interface_descriptor(const usb_interface_descriptor_t *id) 2316 { 2317 printf("Interface: Len=%d Type=0x%02x " 2318 "bInterfaceNumber=0x%02x " 2319 "bAlternateSetting=0x%02x bNumEndpoints=0x%02x " 2320 "bInterfaceClass=0x%02x bInterfaceSubClass=0x%02x " 2321 "bInterfaceProtocol=0x%02x iInterface=0x%02x", 2322 id->bLength, 2323 id->bDescriptorType, 2324 id->bInterfaceNumber, 2325 id->bAlternateSetting, 2326 id->bNumEndpoints, 2327 id->bInterfaceClass, 2328 id->bInterfaceSubClass, 2329 id->bInterfaceProtocol, 2330 id->iInterface); 2331 } 2332 2333 static void 2334 print_endpoint_descriptor(const usb_endpoint_descriptor_t *desc) 2335 { 2336 printf("Endpoint: Len=%d Type=0x%02x " 2337 "bEndpointAddress=0x%02x ", 2338 desc->bLength, 2339 desc->bDescriptorType, 2340 desc->bEndpointAddress); 2341 printf("bmAttributes="); 2342 print_bitmap(&desc->bmAttributes, 1); 2343 printf(" wMaxPacketSize=%d bInterval=%d", 2344 UGETW(desc->wMaxPacketSize), 2345 desc->bInterval); 2346 } 2347 2348 static void 2349 print_vc_header_descriptor( 2350 const uvideo_vc_header_descriptor_t *desc) 2351 { 2352 printf("Interface Header: " 2353 "Len=%d Type=0x%02x Subtype=0x%02x " 2354 "bcdUVC=%d wTotalLength=%d " 2355 "dwClockFrequency=%d bInCollection=%d", 2356 desc->bLength, 2357 desc->bDescriptorType, 2358 desc->bDescriptorSubtype, 2359 UGETW(desc->bcdUVC), 2360 UGETW(desc->wTotalLength), 2361 UGETDW(desc->dwClockFrequency), 2362 desc->bInCollection); 2363 } 2364 2365 static void 2366 print_input_terminal_descriptor( 2367 const uvideo_input_terminal_descriptor_t *desc) 2368 { 2369 printf("Input Terminal: " 2370 "Len=%d Type=0x%02x Subtype=0x%02x " 2371 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2372 "iTerminal=%d", 2373 desc->bLength, 2374 desc->bDescriptorType, 2375 desc->bDescriptorSubtype, 2376 desc->bTerminalID, 2377 UGETW(desc->wTerminalType), 2378 desc->bAssocTerminal, 2379 desc->iTerminal); 2380 } 2381 2382 static void 2383 print_output_terminal_descriptor( 2384 const uvideo_output_terminal_descriptor_t *desc) 2385 { 2386 printf("Output Terminal: " 2387 "Len=%d Type=0x%02x Subtype=0x%02x " 2388 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2389 "bSourceID=%d iTerminal=%d", 2390 desc->bLength, 2391 desc->bDescriptorType, 2392 desc->bDescriptorSubtype, 2393 desc->bTerminalID, 2394 UGETW(desc->wTerminalType), 2395 desc->bAssocTerminal, 2396 desc->bSourceID, 2397 desc->iTerminal); 2398 } 2399 2400 static void 2401 print_camera_terminal_descriptor( 2402 const uvideo_camera_terminal_descriptor_t *desc) 2403 { 2404 printf("Camera Terminal: " 2405 "Len=%d Type=0x%02x Subtype=0x%02x " 2406 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2407 "iTerminal=%d " 2408 "wObjectiveFocalLengthMin/Max=%d/%d " 2409 "wOcularFocalLength=%d " 2410 "bControlSize=%d ", 2411 desc->bLength, 2412 desc->bDescriptorType, 2413 desc->bDescriptorSubtype, 2414 desc->bTerminalID, 2415 UGETW(desc->wTerminalType), 2416 desc->bAssocTerminal, 2417 desc->iTerminal, 2418 UGETW(desc->wObjectiveFocalLengthMin), 2419 UGETW(desc->wObjectiveFocalLengthMax), 2420 UGETW(desc->wOcularFocalLength), 2421 desc->bControlSize); 2422 printf("bmControls="); 2423 print_bitmap(desc->bmControls, desc->bControlSize); 2424 } 2425 2426 static void 2427 print_selector_unit_descriptor( 2428 const uvideo_selector_unit_descriptor_t *desc) 2429 { 2430 int i; 2431 const uByte *b; 2432 printf("Selector Unit: " 2433 "Len=%d Type=0x%02x Subtype=0x%02x " 2434 "bUnitID=%d bNrInPins=%d ", 2435 desc->bLength, 2436 desc->bDescriptorType, 2437 desc->bDescriptorSubtype, 2438 desc->bUnitID, 2439 desc->bNrInPins); 2440 printf("baSourceIDs="); 2441 b = &desc->baSourceID[0]; 2442 for (i = 0; i < desc->bNrInPins; ++i) 2443 printf("%d ", *b++); 2444 printf("iSelector=%d", *b); 2445 } 2446 2447 static void 2448 print_processing_unit_descriptor( 2449 const uvideo_processing_unit_descriptor_t *desc) 2450 { 2451 const uByte *b; 2452 2453 printf("Processing Unit: " 2454 "Len=%d Type=0x%02x Subtype=0x%02x " 2455 "bUnitID=%d bSourceID=%d wMaxMultiplier=%d bControlSize=%d ", 2456 desc->bLength, 2457 desc->bDescriptorType, 2458 desc->bDescriptorSubtype, 2459 desc->bUnitID, 2460 desc->bSourceID, 2461 UGETW(desc->wMaxMultiplier), 2462 desc->bControlSize); 2463 printf("bmControls="); 2464 print_bitmap(desc->bmControls, desc->bControlSize); 2465 b = &desc->bControlSize + desc->bControlSize + 1; 2466 printf(" iProcessing=%d bmVideoStandards=", *b); 2467 b += 1; 2468 print_bitmap(b, 1); 2469 } 2470 2471 static void 2472 print_extension_unit_descriptor( 2473 const uvideo_extension_unit_descriptor_t *desc) 2474 { 2475 const uByte * byte; 2476 uByte controlbytes; 2477 int i; 2478 2479 printf("Extension Unit: " 2480 "Len=%d Type=0x%02x Subtype=0x%02x " 2481 "bUnitID=%d ", 2482 desc->bLength, 2483 desc->bDescriptorType, 2484 desc->bDescriptorSubtype, 2485 desc->bUnitID); 2486 2487 printf("guidExtensionCode="); 2488 usb_guid_print(&desc->guidExtensionCode); 2489 printf(" "); 2490 2491 printf("bNumControls=%d bNrInPins=%d ", 2492 desc->bNumControls, 2493 desc->bNrInPins); 2494 2495 printf("baSourceIDs="); 2496 byte = &desc->baSourceID[0]; 2497 for (i = 0; i < desc->bNrInPins; ++i) 2498 printf("%d ", *byte++); 2499 2500 controlbytes = *byte++; 2501 printf("bControlSize=%d ", controlbytes); 2502 printf("bmControls="); 2503 print_bitmap(byte, controlbytes); 2504 2505 byte += controlbytes; 2506 printf(" iExtension=%d", *byte); 2507 } 2508 2509 static void 2510 print_interrupt_endpoint_descriptor( 2511 const uvideo_vc_interrupt_endpoint_descriptor_t *desc) 2512 { 2513 printf("Interrupt Endpoint: " 2514 "Len=%d Type=0x%02x Subtype=0x%02x " 2515 "wMaxTransferSize=%d ", 2516 desc->bLength, 2517 desc->bDescriptorType, 2518 desc->bDescriptorSubtype, 2519 UGETW(desc->wMaxTransferSize)); 2520 } 2521 2522 2523 static void 2524 print_vs_output_header_descriptor( 2525 const uvideo_vs_output_header_descriptor_t *desc) 2526 { 2527 printf("Interface Output Header: " 2528 "Len=%d Type=0x%02x Subtype=0x%02x " 2529 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2530 "bTerminalLink=%d bControlSize=%d", 2531 desc->bLength, 2532 desc->bDescriptorType, 2533 desc->bDescriptorSubtype, 2534 desc->bNumFormats, 2535 UGETW(desc->wTotalLength), 2536 desc->bEndpointAddress, 2537 desc->bTerminalLink, 2538 desc->bControlSize); 2539 } 2540 2541 static void 2542 print_vs_input_header_descriptor( 2543 const uvideo_vs_input_header_descriptor_t *desc) 2544 { 2545 printf("Interface Input Header: " 2546 "Len=%d Type=0x%02x Subtype=0x%02x " 2547 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2548 "bmInfo=%x bTerminalLink=%d bStillCaptureMethod=%d " 2549 "bTriggerSupport=%d bTriggerUsage=%d bControlSize=%d ", 2550 desc->bLength, 2551 desc->bDescriptorType, 2552 desc->bDescriptorSubtype, 2553 desc->bNumFormats, 2554 UGETW(desc->wTotalLength), 2555 desc->bEndpointAddress, 2556 desc->bmInfo, 2557 desc->bTerminalLink, 2558 desc->bStillCaptureMethod, 2559 desc->bTriggerSupport, 2560 desc->bTriggerUsage, 2561 desc->bControlSize); 2562 print_bitmap(desc->bmaControls, desc->bControlSize); 2563 } 2564 2565 static void 2566 print_vs_format_uncompressed_descriptor( 2567 const uvideo_vs_format_uncompressed_descriptor_t *desc) 2568 { 2569 printf("Format Uncompressed: " 2570 "Len=%d Type=0x%02x Subtype=0x%02x " 2571 "bFormatIndex=%d bNumFrameDescriptors=%d ", 2572 desc->bLength, 2573 desc->bDescriptorType, 2574 desc->bDescriptorSubtype, 2575 desc->bFormatIndex, 2576 desc->bNumFrameDescriptors); 2577 usb_guid_print(&desc->guidFormat); 2578 printf(" bBitsPerPixel=%d bDefaultFrameIndex=%d " 2579 "bAspectRatioX=%d bAspectRatioY=%d " 2580 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2581 desc->bBitsPerPixel, 2582 desc->bDefaultFrameIndex, 2583 desc->bAspectRatioX, 2584 desc->bAspectRatioY, 2585 desc->bmInterlaceFlags, 2586 desc->bCopyProtect); 2587 } 2588 2589 static void 2590 print_vs_frame_uncompressed_descriptor( 2591 const uvideo_vs_frame_uncompressed_descriptor_t *desc) 2592 { 2593 printf("Frame Uncompressed: " 2594 "Len=%d Type=0x%02x Subtype=0x%02x " 2595 "bFrameIndex=%d bmCapabilities=0x%02x " 2596 "wWidth=%d wHeight=%d dwMinBitRate=%d dwMaxBitRate=%d " 2597 "dwMaxVideoFrameBufferSize=%d dwDefaultFrameInterval=%d " 2598 "bFrameIntervalType=%d", 2599 desc->bLength, 2600 desc->bDescriptorType, 2601 desc->bDescriptorSubtype, 2602 desc->bFrameIndex, 2603 desc->bmCapabilities, 2604 UGETW(desc->wWidth), 2605 UGETW(desc->wHeight), 2606 UGETDW(desc->dwMinBitRate), 2607 UGETDW(desc->dwMaxBitRate), 2608 UGETDW(desc->dwMaxVideoFrameBufferSize), 2609 UGETDW(desc->dwDefaultFrameInterval), 2610 desc->bFrameIntervalType); 2611 } 2612 2613 static void 2614 print_vs_format_mjpeg_descriptor( 2615 const uvideo_vs_format_mjpeg_descriptor_t *desc) 2616 { 2617 printf("MJPEG format: " 2618 "Len=%d Type=0x%02x Subtype=0x%02x " 2619 "bFormatIndex=%d bNumFrameDescriptors=%d bmFlags=0x%02x " 2620 "bDefaultFrameIndex=%d bAspectRatioX=%d bAspectRatioY=%d " 2621 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2622 desc->bLength, 2623 desc->bDescriptorType, 2624 desc->bDescriptorSubtype, 2625 desc->bFormatIndex, 2626 desc->bNumFrameDescriptors, 2627 desc->bmFlags, 2628 desc->bDefaultFrameIndex, 2629 desc->bAspectRatioX, 2630 desc->bAspectRatioY, 2631 desc->bmInterlaceFlags, 2632 desc->bCopyProtect); 2633 } 2634 2635 static void 2636 print_vs_frame_mjpeg_descriptor( 2637 const uvideo_vs_frame_mjpeg_descriptor_t *desc) 2638 { 2639 printf("MJPEG frame: " 2640 "Len=%d Type=0x%02x Subtype=0x%02x " 2641 "bFrameIndex=%d bmCapabilities=0x%02x " 2642 "wWidth=%d wHeight=%d dwMinBitRate=%d dwMaxBitRate=%d " 2643 "dwMaxVideoFrameBufferSize=%d dwDefaultFrameInterval=%d " 2644 "bFrameIntervalType=%d", 2645 desc->bLength, 2646 desc->bDescriptorType, 2647 desc->bDescriptorSubtype, 2648 desc->bFrameIndex, 2649 desc->bmCapabilities, 2650 UGETW(desc->wWidth), 2651 UGETW(desc->wHeight), 2652 UGETDW(desc->dwMinBitRate), 2653 UGETDW(desc->dwMaxBitRate), 2654 UGETDW(desc->dwMaxVideoFrameBufferSize), 2655 UGETDW(desc->dwDefaultFrameInterval), 2656 desc->bFrameIntervalType); 2657 } 2658 2659 static void 2660 print_vs_format_dv_descriptor( 2661 const uvideo_vs_format_dv_descriptor_t *desc) 2662 { 2663 printf("MJPEG format: " 2664 "Len=%d Type=0x%02x Subtype=0x%02x " 2665 "bFormatIndex=%d dwMaxVideoFrameBufferSize=%d " 2666 "bFormatType/Rate=%d bFormatType/Format=%d", 2667 desc->bLength, 2668 desc->bDescriptorType, 2669 desc->bDescriptorSubtype, 2670 desc->bFormatIndex, 2671 UGETDW(desc->dwMaxVideoFrameBufferSize), 2672 UVIDEO_GET_DV_FREQ(desc->bFormatType), 2673 UVIDEO_GET_DV_FORMAT(desc->bFormatType)); 2674 } 2675 2676 #endif /* !UVIDEO_DEBUG */ 2677 2678 static const usb_descriptor_t * 2679 usb_desc_iter_peek_next(usbd_desc_iter_t *iter) 2680 { 2681 const usb_descriptor_t *desc; 2682 2683 if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) { 2684 if (iter->cur != iter->end) 2685 printf("usb_desc_iter_peek_next: bad descriptor\n"); 2686 return NULL; 2687 } 2688 desc = (const usb_descriptor_t *)iter->cur; 2689 if (desc->bLength == 0) { 2690 printf("usb_desc_iter_peek_next: descriptor length = 0\n"); 2691 return NULL; 2692 } 2693 if (iter->cur + desc->bLength > iter->end) { 2694 printf("usb_desc_iter_peek_next: descriptor length too large\n"); 2695 return NULL; 2696 } 2697 return desc; 2698 } 2699 2700 /* Return the next interface descriptor, skipping over any other 2701 * descriptors. Returns NULL at the end or on error. */ 2702 static const usb_interface_descriptor_t * 2703 usb_desc_iter_next_interface(usbd_desc_iter_t *iter) 2704 { 2705 const usb_descriptor_t *desc; 2706 2707 while ((desc = usb_desc_iter_peek_next(iter)) != NULL && 2708 desc->bDescriptorType != UDESC_INTERFACE) 2709 { 2710 usb_desc_iter_next(iter); 2711 } 2712 2713 return (const usb_interface_descriptor_t *)usb_desc_iter_next(iter); 2714 } 2715 2716 /* Returns the next non-interface descriptor, returning NULL when the 2717 * next descriptor would be an interface descriptor. */ 2718 static const usb_descriptor_t * 2719 usb_desc_iter_next_non_interface(usbd_desc_iter_t *iter) 2720 { 2721 const usb_descriptor_t *desc; 2722 2723 if ((desc = usb_desc_iter_peek_next(iter)) != NULL && 2724 desc->bDescriptorType != UDESC_INTERFACE) 2725 { 2726 return (usb_desc_iter_next(iter)); 2727 } else { 2728 return NULL; 2729 } 2730 } 2731 2732 #ifdef UVIDEO_DEBUG 2733 static void 2734 usb_guid_print(const usb_guid_t *guid) 2735 { 2736 printf("%04X-%02X-%02X-", 2737 UGETDW(guid->data1), 2738 UGETW(guid->data2), 2739 UGETW(guid->data3)); 2740 printf("%02X%02X-", 2741 guid->data4[0], 2742 guid->data4[1]); 2743 printf("%02X%02X%02X%02X%02X%02X", 2744 guid->data4[2], 2745 guid->data4[3], 2746 guid->data4[4], 2747 guid->data4[5], 2748 guid->data4[6], 2749 guid->data4[7]); 2750 } 2751 #endif /* !UVIDEO_DEBUG */ 2752 2753 /* Returns less than zero, zero, or greater than zero if uguid is less 2754 * than, equal to, or greater than guid. */ 2755 static int 2756 usb_guid_cmp(const usb_guid_t *uguid, const guid_t *guid) 2757 { 2758 if (guid->data1 > UGETDW(uguid->data1)) 2759 return 1; 2760 else if (guid->data1 < UGETDW(uguid->data1)) 2761 return -1; 2762 2763 if (guid->data2 > UGETW(uguid->data2)) 2764 return 1; 2765 else if (guid->data2 < UGETW(uguid->data2)) 2766 return -1; 2767 2768 if (guid->data3 > UGETW(uguid->data3)) 2769 return 1; 2770 else if (guid->data3 < UGETW(uguid->data3)) 2771 return -1; 2772 2773 return (memcmp(guid->data4, uguid->data4, 8)); 2774 } 2775
Indexes created Mon Oct 27 08:10:08 GMT 2025