uvideo.c revision 1.21
1 /* $NetBSD: uvideo.c,v 1.21 2008/09/21 19:26:36 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 1.21 2008/09/21 19:26:36 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 #include <sys/kthread.h> 68 69 #include <sys/videoio.h> 70 #include <dev/video_if.h> 71 72 #include <dev/usb/usb.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdi_util.h> 75 #include <dev/usb/usb_quirks.h> 76 77 #include <dev/usb/uvideoreg.h> 78 79 #if !defined(_MODULE) 80 #include "opt_uvideo.h" 81 #endif 82 83 #define UVIDEO_NXFERS 3 84 #define PRI_UVIDEO PRI_BIO 85 86 /* #define UVIDEO_DISABLE_MJPEG */ 87 88 #ifdef UVIDEO_DEBUG 89 #define DPRINTF(x) do { if (uvideodebug) logprintf x; } while (0) 90 #define DPRINTFN(n,x) do { if (uvideodebug>(n)) logprintf x; } while (0) 91 int uvideodebug = 20; 92 #else 93 #define DPRINTF(x) 94 #define DPRINTFN(n,x) 95 #endif 96 97 typedef enum { 98 UVIDEO_STATE_CLOSED, 99 UVIDEO_STATE_OPENING, 100 UVIDEO_STATE_IDLE 101 } uvideo_state; 102 103 struct uvideo_camera_terminal { 104 uint16_t ct_objective_focal_min; 105 uint16_t ct_objective_focal_max; 106 uint16_t ct_ocular_focal_length; 107 }; 108 109 struct uvideo_processing_unit { 110 uint16_t pu_max_multiplier; /* digital zoom */ 111 uint8_t pu_video_standards; 112 }; 113 114 struct uvideo_extension_unit { 115 guid_t xu_guid; 116 }; 117 118 /* For simplicity, we consider a Terminal a special case of Unit 119 * rather than a separate entity. */ 120 struct uvideo_unit { 121 uint8_t vu_id; 122 uint8_t vu_type; 123 uint8_t vu_dst_id; 124 uint8_t vu_nsrcs; 125 union { 126 uint8_t vu_src_id; /* vu_nsrcs = 1 */ 127 uint8_t *vu_src_id_ary; /* vu_nsrcs > 1 */ 128 } s; 129 130 /* fields for individual unit/terminal types */ 131 union { 132 struct uvideo_camera_terminal vu_camera; 133 struct uvideo_processing_unit vu_processing; 134 struct uvideo_extension_unit vu_extension; 135 } u; 136 137 /* Used by camera terminal, processing and extention units. */ 138 uint8_t vu_control_size; /* number of bytes in vu_controls */ 139 uint8_t *vu_controls; /* array of bytes. bits are 140 * numbered from 0 at least 141 * significant bit to 142 * (8*vu_control_size - 1)*/ 143 }; 144 145 struct uvideo_alternate { 146 uint8_t altno; 147 uint8_t interval; 148 uint16_t max_packet_size; 149 SLIST_ENTRY(uvideo_alternate) entries; 150 }; 151 SLIST_HEAD(altlist, uvideo_alternate); 152 153 #define UVIDEO_FORMAT_GET_FORMAT_INDEX(fmt) \ 154 ((fmt)->format.priv & 0xff) 155 #define UVIDEO_FORMAT_GET_FRAME_INDEX(fmt) \ 156 (((fmt)->format.priv >> 8) & 0xff) 157 /* TODO: find a better way to set bytes within this 32 bit value? */ 158 #define UVIDEO_FORMAT_SET_FORMAT_INDEX(fmt, index) do { \ 159 (fmt)->format.priv &= ~0xff; \ 160 (fmt)->format.priv |= ((index) & 0xff); \ 161 } while (0) 162 #define UVIDEO_FORMAT_SET_FRAME_INDEX(fmt, index) do { \ 163 (fmt)->format.priv &= ~(0xff << 8); \ 164 ((fmt)->format.priv |= (((index) & 0xff) << 8)); \ 165 } while (0) 166 167 struct uvideo_pixel_format { 168 enum video_pixel_format pixel_format; 169 SIMPLEQ_ENTRY(uvideo_pixel_format) entries; 170 }; 171 SIMPLEQ_HEAD(uvideo_pixel_format_list, uvideo_pixel_format); 172 173 struct uvideo_format { 174 struct video_format format; 175 SIMPLEQ_ENTRY(uvideo_format) entries; 176 }; 177 SIMPLEQ_HEAD(uvideo_format_list, uvideo_format); 178 179 struct uvideo_isoc_xfer; 180 struct uvideo_stream; 181 182 struct uvideo_isoc { 183 struct uvideo_isoc_xfer *i_ix; 184 struct uvideo_stream *i_vs; 185 usbd_xfer_handle i_xfer; 186 uint8_t *i_buf; 187 uint16_t *i_frlengths; 188 }; 189 190 struct uvideo_isoc_xfer { 191 uint8_t ix_endpt; 192 usbd_pipe_handle ix_pipe; 193 struct uvideo_isoc ix_i[UVIDEO_NXFERS]; 194 uint32_t ix_nframes; 195 uint32_t ix_uframe_len; 196 197 struct altlist ix_altlist; 198 }; 199 200 struct uvideo_bulk_xfer { 201 uint8_t bx_endpt; 202 usbd_pipe_handle bx_pipe; 203 usbd_xfer_handle bx_xfer; 204 uint8_t *bx_buffer; 205 int bx_buflen; 206 bool bx_running; 207 kcondvar_t bx_cv; 208 kmutex_t bx_lock; 209 }; 210 211 struct uvideo_stream { 212 struct uvideo_softc *vs_parent; 213 usbd_interface_handle vs_iface; 214 uint8_t vs_ifaceno; 215 uint8_t vs_subtype; /* input or output */ 216 uint16_t vs_probelen; /* length of probe and 217 * commit data; varies 218 * depending on version 219 * of spec. */ 220 struct uvideo_format_list vs_formats; 221 struct uvideo_pixel_format_list vs_pixel_formats; 222 struct video_format *vs_default_format; 223 struct video_format vs_current_format; 224 225 /* usb transfer details */ 226 uint8_t vs_xfer_type; 227 union { 228 struct uvideo_bulk_xfer bulk; 229 struct uvideo_isoc_xfer isoc; 230 } vs_xfer; 231 232 int vs_frameno; /* toggles between 0 and 1 */ 233 234 /* current video format */ 235 uint32_t vs_max_payload_size; 236 uint32_t vs_max_frame_size; 237 uint32_t vs_frame_interval; 238 SLIST_ENTRY(uvideo_stream) entries; 239 }; 240 SLIST_HEAD(uvideo_stream_list, uvideo_stream); 241 242 struct uvideo_softc { 243 USBBASEDEVICE sc_dev; /* base device */ 244 usbd_device_handle sc_udev; /* device */ 245 usbd_interface_handle sc_iface; /* interface handle */ 246 int sc_ifaceno; /* interface number */ 247 char *sc_devname; 248 249 device_ptr_t sc_videodev; 250 251 int sc_dying; 252 uvideo_state sc_state; 253 254 uint8_t sc_nunits; 255 struct uvideo_unit **sc_unit; 256 257 struct uvideo_stream *sc_stream_in; 258 259 struct uvideo_stream_list sc_stream_list; 260 }; 261 262 int uvideo_match(device_t, cfdata_t, void *); 263 void uvideo_attach(device_t, device_t, void *); 264 int uvideo_detach(device_t, int); 265 void uvideo_childdet(device_t, device_t); 266 int uvideo_activate(device_t, enum devact); 267 268 static int uvideo_open(void *, int); 269 static void uvideo_close(void *); 270 static const char * uvideo_get_devname(void *); 271 272 static int uvideo_enum_format(void *, uint32_t, struct video_format *); 273 static int uvideo_get_format(void *, struct video_format *); 274 static int uvideo_set_format(void *, struct video_format *); 275 static int uvideo_try_format(void *, struct video_format *); 276 static int uvideo_start_transfer(void *); 277 static int uvideo_stop_transfer(void *); 278 279 static int uvideo_get_control_group(void *, 280 struct video_control_group *); 281 static int uvideo_set_control_group(void *, 282 const struct video_control_group *); 283 284 static usbd_status uvideo_init_control( 285 struct uvideo_softc *, 286 const usb_interface_descriptor_t *, 287 usbd_desc_iter_t *); 288 static usbd_status uvideo_init_collection( 289 struct uvideo_softc *, 290 const usb_interface_descriptor_t *, 291 usbd_desc_iter_t *); 292 293 /* Functions for unit & terminal descriptors */ 294 static struct uvideo_unit * uvideo_unit_alloc(const uvideo_descriptor_t *); 295 static usbd_status uvideo_unit_init(struct uvideo_unit *, 296 const uvideo_descriptor_t *); 297 static void uvideo_unit_free(struct uvideo_unit *); 298 static usbd_status uvideo_unit_alloc_controls(struct uvideo_unit *, 299 uint8_t, 300 const uint8_t *); 301 static void uvideo_unit_free_controls(struct uvideo_unit *); 302 static usbd_status uvideo_unit_alloc_sources(struct uvideo_unit *, 303 uint8_t, 304 const uint8_t *); 305 static void uvideo_unit_free_sources(struct uvideo_unit *); 306 307 308 309 310 /* Functions for uvideo_stream, primary unit associated with a video 311 * driver or device file. */ 312 static struct uvideo_stream * uvideo_find_stream(struct uvideo_softc *, 313 uint8_t); 314 #if 0 315 static struct uvideo_format * uvideo_stream_find_format( 316 struct uvideo_stream *, 317 uint8_t, uint8_t); 318 #endif 319 static struct uvideo_format * uvideo_stream_guess_format( 320 struct uvideo_stream *, 321 enum video_pixel_format, uint32_t, uint32_t); 322 static struct uvideo_stream * uvideo_stream_alloc(void); 323 static usbd_status uvideo_stream_init( 324 struct uvideo_stream *stream, 325 struct uvideo_softc *sc, 326 const usb_interface_descriptor_t *ifdesc, 327 uint8_t idx); 328 static usbd_status uvideo_stream_init_desc( 329 struct uvideo_stream *, 330 const usb_interface_descriptor_t *ifdesc, 331 usbd_desc_iter_t *iter); 332 static usbd_status uvideo_stream_init_frame_based_format( 333 struct uvideo_stream *, 334 const uvideo_descriptor_t *, 335 usbd_desc_iter_t *); 336 static void uvideo_stream_free(struct uvideo_stream *); 337 338 static int uvideo_stream_start_xfer(struct uvideo_stream *); 339 static int uvideo_stream_stop_xfer(struct uvideo_stream *); 340 static usbd_status uvideo_stream_recv_process(struct uvideo_stream *, 341 uint8_t *, uint32_t); 342 static usbd_status uvideo_stream_recv_isoc_start(struct uvideo_stream *); 343 static usbd_status uvideo_stream_recv_isoc_start1(struct uvideo_isoc *); 344 static void uvideo_stream_recv_isoc_complete(usbd_xfer_handle, 345 usbd_private_handle, 346 usbd_status); 347 static void uvideo_stream_recv_bulk_transfer(void *); 348 349 /* format probe and commit */ 350 #define uvideo_stream_probe(vs, act, data) \ 351 (uvideo_stream_probe_and_commit((vs), (act), \ 352 UVIDEO_VS_PROBE_CONTROL, (data))) 353 #define uvideo_stream_commit(vs, act, data) \ 354 (uvideo_stream_probe_and_commit((vs), (act), \ 355 UVIDEO_VS_COMMIT_CONTROL, (data))) 356 static usbd_status uvideo_stream_probe_and_commit(struct uvideo_stream *, 357 uint8_t, uint8_t, 358 void *); 359 static void uvideo_init_probe_data(uvideo_probe_and_commit_data_t *); 360 361 362 static const usb_descriptor_t * usb_desc_iter_peek_next(usbd_desc_iter_t *); 363 static const usb_interface_descriptor_t * usb_desc_iter_next_interface( 364 usbd_desc_iter_t *); 365 static const usb_descriptor_t * usb_desc_iter_next_non_interface( 366 usbd_desc_iter_t *); 367 368 static int usb_guid_cmp(const usb_guid_t *, const guid_t *); 369 370 371 CFATTACH_DECL2_NEW(uvideo, sizeof(struct uvideo_softc), 372 uvideo_match, uvideo_attach, uvideo_detach, uvideo_activate, NULL, 373 uvideo_childdet); 374 375 extern struct cfdriver uvideo_cd; 376 377 378 static const struct video_hw_if uvideo_hw_if = { 379 .open = uvideo_open, 380 .close = uvideo_close, 381 .get_devname = uvideo_get_devname, 382 .enum_format = uvideo_enum_format, 383 .get_format = uvideo_get_format, 384 .set_format = uvideo_set_format, 385 .try_format = uvideo_try_format, 386 .start_transfer = uvideo_start_transfer, 387 .stop_transfer = uvideo_stop_transfer, 388 .control_iter_init = NULL, 389 .control_iter_next = NULL, 390 .get_control_desc_group = NULL, 391 .get_control_group = uvideo_get_control_group, 392 .set_control_group = uvideo_set_control_group, 393 }; 394 395 #ifdef UVIDEO_DEBUG 396 /* Some functions to print out descriptors. Mostly useless other than 397 * debugging/exploration purposes. */ 398 static void usb_guid_print(const usb_guid_t *); 399 static void print_descriptor(const usb_descriptor_t *); 400 static void print_interface_descriptor(const usb_interface_descriptor_t *); 401 static void print_endpoint_descriptor(const usb_endpoint_descriptor_t *); 402 403 static void print_vc_descriptor(const usb_descriptor_t *); 404 static void print_vs_descriptor(const usb_descriptor_t *); 405 406 static void print_vc_header_descriptor( 407 const uvideo_vc_header_descriptor_t *); 408 static void print_input_terminal_descriptor( 409 const uvideo_input_terminal_descriptor_t *); 410 static void print_output_terminal_descriptor( 411 const uvideo_output_terminal_descriptor_t *); 412 static void print_camera_terminal_descriptor( 413 const uvideo_camera_terminal_descriptor_t *); 414 static void print_selector_unit_descriptor( 415 const uvideo_selector_unit_descriptor_t *); 416 static void print_processing_unit_descriptor( 417 const uvideo_processing_unit_descriptor_t *); 418 static void print_extension_unit_descriptor( 419 const uvideo_extension_unit_descriptor_t *); 420 static void print_interrupt_endpoint_descriptor( 421 const uvideo_vc_interrupt_endpoint_descriptor_t *); 422 423 static void print_vs_input_header_descriptor( 424 const uvideo_vs_input_header_descriptor_t *); 425 static void print_vs_output_header_descriptor( 426 const uvideo_vs_output_header_descriptor_t *); 427 428 static void print_vs_format_uncompressed_descriptor( 429 const uvideo_vs_format_uncompressed_descriptor_t *); 430 static void print_vs_frame_uncompressed_descriptor( 431 const uvideo_vs_frame_uncompressed_descriptor_t *); 432 static void print_vs_format_mjpeg_descriptor( 433 const uvideo_vs_format_mjpeg_descriptor_t *); 434 static void print_vs_frame_mjpeg_descriptor( 435 const uvideo_vs_frame_mjpeg_descriptor_t *); 436 static void print_vs_format_dv_descriptor( 437 const uvideo_vs_format_dv_descriptor_t *); 438 #endif /* !UVIDEO_DEBUG */ 439 440 #define GET(type, descp, field) (((const type *)(descp))->field) 441 #define GETP(type, descp, field) (&(((const type *)(descp))->field)) 442 443 /* Given a format descriptor and frame descriptor, copy values common 444 * to all formats into a struct uvideo_format. */ 445 #define UVIDEO_FORMAT_INIT_FRAME_BASED(format_type, format_desc, \ 446 frame_type, frame_desc, \ 447 format) \ 448 do { \ 449 UVIDEO_FORMAT_SET_FORMAT_INDEX( \ 450 format, \ 451 GET(format_type, format_desc, bFormatIndex)); \ 452 UVIDEO_FORMAT_SET_FRAME_INDEX( \ 453 format, \ 454 GET(frame_type, frame_desc, bFrameIndex)); \ 455 format->format.width = \ 456 UGETW(GET(frame_type, frame_desc, wWidth)); \ 457 format->format.height = \ 458 UGETW(GET(frame_type, frame_desc, wHeight)); \ 459 format->format.aspect_x = \ 460 GET(format_type, format_desc, bAspectRatioX); \ 461 format->format.aspect_y = \ 462 GET(format_type, format_desc, bAspectRatioY); \ 463 } while (0) 464 465 466 USB_MATCH(uvideo) 467 { 468 USB_IFMATCH_START(uvideo, uaa); 469 470 /* TODO: May need to change in the future to work with 471 * Interface Association Descriptor. */ 472 473 /* Trigger on the Video Control Interface which must be present */ 474 if (uaa->class == UICLASS_VIDEO && 475 uaa->subclass == UISUBCLASS_VIDEOCONTROL) 476 return UMATCH_IFACECLASS_IFACESUBCLASS; 477 478 return UMATCH_NONE; 479 } 480 481 USB_ATTACH(uvideo) 482 { 483 USB_IFATTACH_START(uvideo, sc, uaa); 484 usbd_desc_iter_t iter; 485 const usb_interface_descriptor_t *ifdesc; 486 struct uvideo_stream *vs; 487 usbd_status err; 488 uint8_t ifaceidx; 489 490 sc->sc_dev = self; 491 492 sc->sc_devname = usbd_devinfo_alloc(uaa->device, 0); 493 494 aprint_naive("\n"); 495 aprint_normal(": %s\n", sc->sc_devname); 496 497 sc->sc_udev = uaa->device; 498 sc->sc_iface = uaa->iface; 499 sc->sc_ifaceno = uaa->ifaceno; 500 sc->sc_dying = 0; 501 sc->sc_state = UVIDEO_STATE_CLOSED; 502 SLIST_INIT(&sc->sc_stream_list); 503 504 #ifdef UVIDEO_DEBUG 505 /* Debugging dump of descriptors. TODO: move this to userspace 506 * via a custom IOCTL or something. */ 507 const usb_descriptor_t *desc; 508 usb_desc_iter_init(sc->sc_udev, &iter); 509 while ((desc = usb_desc_iter_next(&iter)) != NULL) { 510 /* print out all descriptors */ 511 printf("uvideo_attach: "); 512 print_descriptor(desc); 513 } 514 #endif /* !UVIDEO_DEBUG */ 515 516 /* iterate through interface descriptors and initialize softc */ 517 usb_desc_iter_init(sc->sc_udev, &iter); 518 for (ifaceidx = 0; 519 (ifdesc = usb_desc_iter_next_interface(&iter)) != NULL; 520 ++ifaceidx) 521 { 522 if (ifdesc->bInterfaceClass != UICLASS_VIDEO) { 523 DPRINTFN(50, ("uvideo_attach: " 524 "ignoring non-uvc interface: " 525 "len=%d type=0x%02x " 526 "class=0x%02x subclass=0x%02x\n", 527 ifdesc->bLength, 528 ifdesc->bDescriptorType, 529 ifdesc->bInterfaceClass, 530 ifdesc->bInterfaceSubClass)); 531 continue; 532 } 533 534 switch (ifdesc->bInterfaceSubClass) { 535 case UISUBCLASS_VIDEOCONTROL: 536 err = uvideo_init_control(sc, ifdesc, &iter); 537 if (err != USBD_NORMAL_COMPLETION) { 538 DPRINTF(("uvideo_attach: error with interface " 539 "%d, VideoControl, " 540 "descriptor len=%d type=0x%02x: " 541 "%s (%d)\n", 542 ifdesc->bInterfaceNumber, 543 ifdesc->bLength, 544 ifdesc->bDescriptorType, 545 usbd_errstr(err), err)); 546 } 547 break; 548 case UISUBCLASS_VIDEOSTREAMING: 549 vs = uvideo_find_stream(sc, ifdesc->bInterfaceNumber); 550 if (vs == NULL) { 551 vs = uvideo_stream_alloc(); 552 if (vs == NULL) { 553 DPRINTF(("uvideo_attach: " 554 "failed to alloc stream\n")); 555 err = USBD_NOMEM; 556 goto bad; 557 } 558 err = uvideo_stream_init(vs, sc, ifdesc, 559 ifaceidx); 560 if (err != USBD_NORMAL_COMPLETION) { 561 DPRINTF(("uvideo_attach: " 562 "error initializing stream: " 563 "%s (%d)\n", 564 usbd_errstr(err), err)); 565 goto bad; 566 } 567 } 568 err = uvideo_stream_init_desc(vs, ifdesc, &iter); 569 if (err != USBD_NORMAL_COMPLETION) { 570 DPRINTF(("uvideo_attach: " 571 "error initializing stream descriptor: " 572 "%s (%d)\n", 573 usbd_errstr(err), err)); 574 goto bad; 575 } 576 /* TODO: for now, set (each) stream to stream_in. */ 577 sc->sc_stream_in = vs; 578 break; 579 case UISUBCLASS_VIDEOCOLLECTION: 580 err = uvideo_init_collection(sc, ifdesc, &iter); 581 if (err != USBD_NORMAL_COMPLETION) { 582 DPRINTF(("uvideo_attach: error with interface " 583 "%d, VideoCollection, " 584 "descriptor len=%d type=0x%02x: " 585 "%s (%d)\n", 586 ifdesc->bInterfaceNumber, 587 ifdesc->bLength, 588 ifdesc->bDescriptorType, 589 usbd_errstr(err), err)); 590 goto bad; 591 } 592 break; 593 default: 594 DPRINTF(("uvideo_attach: unknown UICLASS_VIDEO " 595 "subclass=0x%02x\n", 596 ifdesc->bInterfaceSubClass)); 597 break; 598 } 599 600 } 601 602 603 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 604 USBDEV(sc->sc_dev)); 605 606 if (!pmf_device_register(self, NULL, NULL)) 607 aprint_error_dev(self, "couldn't establish power handler\n"); 608 609 sc->sc_videodev = video_attach_mi(&uvideo_hw_if, sc->sc_dev); 610 DPRINTF(("uvideo_attach: attached video driver at %p\n", 611 sc->sc_videodev)); 612 613 USB_ATTACH_SUCCESS_RETURN; 614 615 bad: 616 if (err != USBD_NORMAL_COMPLETION) { 617 DPRINTF(("uvideo_attach: error: %s (%d)\n", 618 usbd_errstr(err), err)); 619 } 620 USB_ATTACH_ERROR_RETURN; 621 } 622 623 624 int 625 uvideo_activate(device_t self, enum devact act) 626 { 627 struct uvideo_softc *sc; 628 int rv; 629 630 sc = device_private(self); 631 rv = 0; 632 switch (act) { 633 case DVACT_ACTIVATE: 634 return EOPNOTSUPP; 635 636 case DVACT_DEACTIVATE: 637 DPRINTF(("uvideo_activate: deactivating\n")); 638 if (sc->sc_videodev != NULL) 639 rv = config_deactivate(sc->sc_videodev); 640 sc->sc_dying = 1; 641 break; 642 } 643 return rv; 644 } 645 646 647 /* Detach child (video interface) */ 648 void 649 uvideo_childdet(device_t self, device_t child) 650 { 651 struct uvideo_softc *sc = device_private(self); 652 653 KASSERT(sc->sc_videodev == child); 654 sc->sc_videodev = NULL; 655 } 656 657 658 int 659 uvideo_detach(device_t self, int flags) 660 { 661 struct uvideo_softc *sc; 662 struct uvideo_stream *vs; 663 int rv; 664 665 sc = device_private(self); 666 rv = 0; 667 668 sc->sc_dying = 1; 669 670 pmf_device_deregister(self); 671 672 usbd_devinfo_free(sc->sc_devname); 673 674 /* TODO: close the device if it is currently opened? Or will 675 * close be called automatically? */ 676 677 while (!SLIST_EMPTY(&sc->sc_stream_list)) { 678 vs = SLIST_FIRST(&sc->sc_stream_list); 679 SLIST_REMOVE_HEAD(&sc->sc_stream_list, entries); 680 uvideo_stream_free(vs); 681 } 682 683 /* Wait for outstanding request to complete. TODO: what is 684 * appropriate here? */ 685 usbd_delay_ms(sc->sc_udev, 1000); 686 687 DPRINTFN(15, ("uvideo: detaching from %s\n", 688 USBDEVNAME(sc->sc_dev))); 689 690 if (sc->sc_videodev != NULL) 691 rv = config_detach(sc->sc_videodev, flags); 692 693 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 694 USBDEV(sc->sc_dev)); 695 696 return rv; 697 } 698 699 /* Search the stream list for a stream matching the interface number. 700 * This is an O(n) search, but most devices should have only one or at 701 * most two streams. */ 702 static struct uvideo_stream * 703 uvideo_find_stream(struct uvideo_softc *sc, uint8_t ifaceno) 704 { 705 struct uvideo_stream *vs; 706 707 SLIST_FOREACH(vs, &sc->sc_stream_list, entries) { 708 if (vs->vs_ifaceno == ifaceno) 709 return vs; 710 } 711 712 return NULL; 713 } 714 715 /* Search the format list for the given format and frame index. This 716 * might be improved through indexing, but the format and frame count 717 * is unknown ahead of time (only after iterating through the 718 * usb device descriptors). */ 719 #if 0 720 static struct uvideo_format * 721 uvideo_stream_find_format(struct uvideo_stream *vs, 722 uint8_t format_index, uint8_t frame_index) 723 { 724 struct uvideo_format *format; 725 726 SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { 727 if (UVIDEO_FORMAT_GET_FORMAT_INDEX(format) == format_index && 728 UVIDEO_FORMAT_GET_FRAME_INDEX(format) == frame_index) 729 return format; 730 } 731 return NULL; 732 } 733 #endif 734 735 static struct uvideo_format * 736 uvideo_stream_guess_format(struct uvideo_stream *vs, 737 enum video_pixel_format pixel_format, 738 uint32_t width, uint32_t height) 739 { 740 struct uvideo_format *format, *gformat = NULL; 741 742 SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { 743 if (format->format.pixel_format != pixel_format) 744 continue; 745 if (format->format.width <= width && 746 format->format.height <= height) { 747 if (gformat == NULL || 748 (gformat->format.width < format->format.width && 749 gformat->format.height < format->format.height)) 750 gformat = format; 751 } 752 } 753 754 return gformat; 755 } 756 757 static struct uvideo_stream * 758 uvideo_stream_alloc(void) 759 { 760 return (kmem_alloc(sizeof(struct uvideo_stream), KM_NOSLEEP)); 761 } 762 763 764 static usbd_status 765 uvideo_init_control(struct uvideo_softc *sc, 766 const usb_interface_descriptor_t *ifdesc, 767 usbd_desc_iter_t *iter) 768 { 769 const usb_descriptor_t *desc; 770 const uvideo_descriptor_t *uvdesc; 771 usbd_desc_iter_t orig; 772 uint8_t i, j, nunits; 773 774 /* save original iterator state */ 775 memcpy(&orig, iter, sizeof(orig)); 776 777 /* count number of units and terminals */ 778 nunits = 0; 779 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 780 uvdesc = (const uvideo_descriptor_t *)desc; 781 782 if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) 783 continue; 784 if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || 785 uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) 786 continue; 787 ++nunits; 788 } 789 790 if (nunits == 0) { 791 DPRINTF(("uvideo_init_control: no units\n")); 792 return USBD_NORMAL_COMPLETION; 793 } 794 795 /* allocate space for units */ 796 sc->sc_nunits = nunits; 797 sc->sc_unit = kmem_alloc(sizeof(*sc->sc_unit) * nunits, KM_SLEEP); 798 if (sc->sc_unit == NULL) 799 goto enomem; 800 801 /* restore original iterator state */ 802 memcpy(iter, &orig, sizeof(orig)); 803 804 /* iterate again, initializing the units */ 805 i = 0; 806 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 807 uvdesc = (const uvideo_descriptor_t *)desc; 808 809 if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) 810 continue; 811 if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || 812 uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) 813 continue; 814 815 sc->sc_unit[i] = uvideo_unit_alloc(uvdesc); 816 /* TODO: free other units before returning? */ 817 if (sc->sc_unit[i] == NULL) 818 goto enomem; 819 ++i; 820 } 821 822 return USBD_NORMAL_COMPLETION; 823 824 enomem: 825 if (sc->sc_unit != NULL) { 826 for (j = 0; j < i; ++j) { 827 uvideo_unit_free(sc->sc_unit[j]); 828 sc->sc_unit[j] = NULL; 829 } 830 kmem_free(sc->sc_unit, sizeof(*sc->sc_unit) * nunits); 831 sc->sc_unit = NULL; 832 } 833 sc->sc_nunits = 0; 834 835 return USBD_NOMEM; 836 } 837 838 static usbd_status 839 uvideo_init_collection(struct uvideo_softc *sc, 840 const usb_interface_descriptor_t *ifdesc, 841 usbd_desc_iter_t *iter) 842 { 843 DPRINTF(("uvideo: ignoring Video Collection\n")); 844 return USBD_NORMAL_COMPLETION; 845 } 846 847 /* Allocates space for and initializes a uvideo unit based on the 848 * given descriptor. Returns NULL with bad descriptor or ENOMEM. */ 849 static struct uvideo_unit * 850 uvideo_unit_alloc(const uvideo_descriptor_t *desc) 851 { 852 struct uvideo_unit *vu; 853 usbd_status err; 854 855 if (desc->bDescriptorType != UDESC_CS_INTERFACE) 856 return NULL; 857 858 vu = kmem_alloc(sizeof(*vu), KM_SLEEP); 859 if (vu == NULL) 860 return NULL; 861 862 err = uvideo_unit_init(vu, desc); 863 if (err != USBD_NORMAL_COMPLETION) { 864 DPRINTF(("uvideo_unit_alloc: error initializing unit: " 865 "%s (%d)\n", usbd_errstr(err), err)); 866 kmem_free(vu, sizeof(*vu)); 867 return NULL; 868 } 869 870 return vu; 871 } 872 873 static usbd_status 874 uvideo_unit_init(struct uvideo_unit *vu, const uvideo_descriptor_t *desc) 875 { 876 struct uvideo_camera_terminal *ct; 877 struct uvideo_processing_unit *pu; 878 struct uvideo_extension_unit *xu; 879 880 const uvideo_input_terminal_descriptor_t *input; 881 const uvideo_output_terminal_descriptor_t *output; 882 const uvideo_camera_terminal_descriptor_t *camera; 883 const uvideo_selector_unit_descriptor_t *selector; 884 const uvideo_processing_unit_descriptor_t *processing; 885 const uvideo_extension_unit_descriptor_t *extension; 886 887 memset(vu, 0, sizeof(*vu)); 888 889 switch (desc->bDescriptorSubtype) { 890 case UDESC_INPUT_TERMINAL: 891 input = (const uvideo_input_terminal_descriptor_t *)desc; 892 switch (UGETW(input->wTerminalType)) { 893 case UVIDEO_ITT_CAMERA: 894 camera = 895 (const uvideo_camera_terminal_descriptor_t *)desc; 896 ct = &vu->u.vu_camera; 897 898 ct->ct_objective_focal_min = 899 UGETW(camera->wObjectiveFocalLengthMin); 900 ct->ct_objective_focal_max = 901 UGETW(camera->wObjectiveFocalLengthMax); 902 ct->ct_ocular_focal_length = 903 UGETW(camera->wOcularFocalLength); 904 905 uvideo_unit_alloc_controls(vu, camera->bControlSize, 906 camera->bmControls); 907 break; 908 default: 909 DPRINTF(("uvideo_unit_init: " 910 "unknown input terminal type 0x%04x\n", 911 UGETW(input->wTerminalType))); 912 return USBD_INVAL; 913 } 914 break; 915 case UDESC_OUTPUT_TERMINAL: 916 output = (const uvideo_output_terminal_descriptor_t *)desc; 917 break; 918 case UDESC_SELECTOR_UNIT: 919 selector = (const uvideo_selector_unit_descriptor_t *)desc; 920 921 uvideo_unit_alloc_sources(vu, selector->bNrInPins, 922 selector->baSourceID); 923 break; 924 case UDESC_PROCESSING_UNIT: 925 processing = (const uvideo_processing_unit_descriptor_t *)desc; 926 pu = &vu->u.vu_processing; 927 928 pu->pu_video_standards = PU_GET_VIDEO_STANDARDS(processing); 929 pu->pu_max_multiplier = UGETW(processing->wMaxMultiplier); 930 931 uvideo_unit_alloc_sources(vu, 1, &processing->bSourceID); 932 uvideo_unit_alloc_controls(vu, processing->bControlSize, 933 processing->bmControls); 934 break; 935 case UDESC_EXTENSION_UNIT: 936 extension = (const uvideo_extension_unit_descriptor_t *)desc; 937 xu = &vu->u.vu_extension; 938 /* TODO: copy guid */ 939 940 uvideo_unit_alloc_sources(vu, extension->bNrInPins, 941 extension->baSourceID); 942 uvideo_unit_alloc_controls(vu, XU_GET_CONTROL_SIZE(extension), 943 XU_GET_CONTROLS(extension)); 944 break; 945 default: 946 DPRINTF(("uvideo_unit_alloc: unknown descriptor " 947 "type=0x%02x subtype=0x%02x\n", 948 desc->bDescriptorType, desc->bDescriptorSubtype)); 949 return USBD_INVAL; 950 } 951 952 return USBD_NORMAL_COMPLETION; 953 } 954 955 static void 956 uvideo_unit_free(struct uvideo_unit *vu) 957 { 958 uvideo_unit_free_sources(vu); 959 uvideo_unit_free_controls(vu); 960 kmem_free(vu, sizeof(*vu)); 961 } 962 963 static usbd_status 964 uvideo_unit_alloc_sources(struct uvideo_unit *vu, 965 uint8_t nsrcs, const uint8_t *src_ids) 966 { 967 vu->vu_nsrcs = nsrcs; 968 969 if (nsrcs == 0) { 970 /* do nothing */ 971 } else if (nsrcs == 1) { 972 vu->s.vu_src_id = src_ids[0]; 973 } else { 974 vu->s.vu_src_id_ary = 975 kmem_alloc(sizeof(*vu->s.vu_src_id_ary) * nsrcs, KM_SLEEP); 976 if (vu->s.vu_src_id_ary == NULL) { 977 vu->vu_nsrcs = 0; 978 return USBD_NOMEM; 979 } 980 981 memcpy(vu->s.vu_src_id_ary, src_ids, nsrcs); 982 } 983 984 return USBD_NORMAL_COMPLETION; 985 } 986 987 static void 988 uvideo_unit_free_sources(struct uvideo_unit *vu) 989 { 990 if (vu->vu_nsrcs == 1) 991 return; 992 993 kmem_free(vu->s.vu_src_id_ary, 994 sizeof(*vu->s.vu_src_id_ary) * vu->vu_nsrcs); 995 vu->vu_nsrcs = 0; 996 vu->s.vu_src_id_ary = NULL; 997 } 998 999 static usbd_status 1000 uvideo_unit_alloc_controls(struct uvideo_unit *vu, uint8_t size, 1001 const uint8_t *controls) 1002 { 1003 vu->vu_controls = kmem_alloc(sizeof(*vu->vu_controls) * size, KM_SLEEP); 1004 if (vu->vu_controls == NULL) 1005 return USBD_NOMEM; 1006 1007 vu->vu_control_size = size; 1008 memcpy(vu->vu_controls, controls, size); 1009 1010 return USBD_NORMAL_COMPLETION; 1011 } 1012 1013 static void 1014 uvideo_unit_free_controls(struct uvideo_unit *vu) 1015 { 1016 kmem_free(vu->vu_controls, 1017 sizeof(*vu->vu_controls) * vu->vu_control_size); 1018 vu->vu_controls = NULL; 1019 vu->vu_control_size = 0; 1020 } 1021 1022 1023 /* Initialize a stream from a Video Streaming interface 1024 * descriptor. Adds the stream to the stream_list in uvideo_softc. 1025 * This should be called once for new streams, and 1026 * uvideo_stream_init_desc() should then be called for this and each 1027 * additional interface with the same interface number. */ 1028 static usbd_status 1029 uvideo_stream_init(struct uvideo_stream *vs, 1030 struct uvideo_softc *sc, 1031 const usb_interface_descriptor_t *ifdesc, 1032 uint8_t idx) 1033 { 1034 uWord len; 1035 usbd_status err; 1036 1037 SLIST_INSERT_HEAD(&sc->sc_stream_list, vs, entries); 1038 memset(vs, 0, sizeof(*vs)); 1039 vs->vs_parent = sc; 1040 vs->vs_ifaceno = ifdesc->bInterfaceNumber; 1041 vs->vs_subtype = 0; 1042 SIMPLEQ_INIT(&vs->vs_formats); 1043 SIMPLEQ_INIT(&vs->vs_pixel_formats); 1044 vs->vs_default_format = NULL; 1045 vs->vs_current_format.priv = -1; 1046 vs->vs_xfer_type = 0; 1047 1048 err = usbd_device2interface_handle(sc->sc_udev, idx, &vs->vs_iface); 1049 if (err != USBD_NORMAL_COMPLETION) { 1050 DPRINTF(("uvideo_stream_init: " 1051 "error getting vs interface: " 1052 "%s (%d)\n", 1053 usbd_errstr(err), err)); 1054 return err; 1055 } 1056 1057 /* For Xbox Live Vision camera, linux-uvc folk say we need to 1058 * set an alternate interface and wait ~3 seconds prior to 1059 * doing the format probe/commit. We set to alternate 1060 * interface 0, which is the default, zero bandwidth 1061 * interface. This should not have adverse affects on other 1062 * cameras. Errors are ignored. */ 1063 err = usbd_set_interface(vs->vs_iface, 0); 1064 if (err != USBD_NORMAL_COMPLETION) { 1065 DPRINTF(("uvideo_stream_init: error setting alt interface: " 1066 "%s (%d)\n", 1067 usbd_errstr(err), err)); 1068 } 1069 1070 /* Initialize probe and commit data size. This value is 1071 * dependent on the version of the spec the hardware 1072 * implements. */ 1073 err = uvideo_stream_probe(vs, UR_GET_LEN, len); 1074 if (err != USBD_NORMAL_COMPLETION) { 1075 DPRINTF(("uvideo_stream_init: " 1076 "error getting probe data len: " 1077 "%s (%d)\n", 1078 usbd_errstr(err), err)); 1079 vs->vs_probelen = 26; /* conservative v1.0 length */ 1080 } else { 1081 DPRINTFN(15,("uvideo_stream_init: probelen=%d\n", UGETW(len))); 1082 vs->vs_probelen = UGETW(len); 1083 } 1084 1085 return USBD_NORMAL_COMPLETION; 1086 } 1087 1088 /* Further stream initialization based on a Video Streaming interface 1089 * descriptor and following descriptors belonging to that interface. 1090 * Iterates through all descriptors belonging to this particular 1091 * interface descriptor, modifying the iterator. This may be called 1092 * multiple times because there may be several alternate interfaces 1093 * associated with the same interface number. */ 1094 static usbd_status 1095 uvideo_stream_init_desc(struct uvideo_stream *vs, 1096 const usb_interface_descriptor_t *ifdesc, 1097 usbd_desc_iter_t *iter) 1098 { 1099 const usb_descriptor_t *desc; 1100 const uvideo_descriptor_t *uvdesc; 1101 struct uvideo_bulk_xfer *bx; 1102 struct uvideo_isoc_xfer *ix; 1103 struct uvideo_alternate *alt; 1104 uint8_t xfer_type, xfer_dir; 1105 uint8_t bmAttributes, bEndpointAddress; 1106 int i; 1107 1108 /* Iterate until the next interface descriptor. All 1109 * descriptors until then belong to this streaming 1110 * interface. */ 1111 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 1112 uvdesc = (const uvideo_descriptor_t *)desc; 1113 1114 switch (uvdesc->bDescriptorType) { 1115 case UDESC_ENDPOINT: 1116 bmAttributes = GET(usb_endpoint_descriptor_t, 1117 desc, bmAttributes); 1118 bEndpointAddress = GET(usb_endpoint_descriptor_t, 1119 desc, bEndpointAddress); 1120 xfer_type = UE_GET_XFERTYPE(bmAttributes); 1121 xfer_dir = UE_GET_DIR(bEndpointAddress); 1122 if (xfer_type == UE_BULK && xfer_dir == UE_DIR_IN) { 1123 bx = &vs->vs_xfer.bulk; 1124 if (vs->vs_xfer_type == 0) { 1125 DPRINTFN(15, ("uvideo_attach: " 1126 "BULK stream *\n")); 1127 vs->vs_xfer_type = UE_BULK; 1128 bx->bx_endpt = bEndpointAddress; 1129 DPRINTF(("uvideo_attach: BULK " 1130 "endpoint %x\n", 1131 bx->bx_endpt)); 1132 bx->bx_running = false; 1133 cv_init(&bx->bx_cv, 1134 device_xname(vs->vs_parent->sc_dev) 1135 ); 1136 mutex_init(&bx->bx_lock, 1137 MUTEX_DEFAULT, IPL_NONE); 1138 } 1139 } else if (xfer_type == UE_ISOCHRONOUS) { 1140 ix = &vs->vs_xfer.isoc; 1141 for (i = 0; i < UVIDEO_NXFERS; i++) { 1142 ix->ix_i[i].i_ix = ix; 1143 ix->ix_i[i].i_vs = vs; 1144 } 1145 if (vs->vs_xfer_type == 0) { 1146 DPRINTFN(15, ("uvideo_attach: " 1147 "ISOC stream *\n")); 1148 SLIST_INIT(&ix->ix_altlist); 1149 vs->vs_xfer_type = UE_ISOCHRONOUS; 1150 ix->ix_endpt = 1151 GET(usb_endpoint_descriptor_t, 1152 desc, bEndpointAddress); 1153 } 1154 1155 alt = kmem_alloc(sizeof(*alt), KM_NOSLEEP); 1156 if (alt == NULL) 1157 return USBD_NOMEM; 1158 1159 alt->altno = ifdesc->bAlternateSetting; 1160 alt->interval = 1161 GET(usb_endpoint_descriptor_t, 1162 desc, bInterval); 1163 alt->max_packet_size = 1164 UGETW(GET(usb_endpoint_descriptor_t, 1165 desc, wMaxPacketSize)); 1166 SLIST_INSERT_HEAD(&ix->ix_altlist, 1167 alt, entries); 1168 } 1169 break; 1170 case UDESC_CS_INTERFACE: 1171 if (ifdesc->bAlternateSetting != 0) { 1172 DPRINTF(("uvideo_stream_init_alternate: " 1173 "unexpected class-specific descriptor " 1174 "len=%d type=0x%02x subtype=0x%02x\n", 1175 uvdesc->bLength, 1176 uvdesc->bDescriptorType, 1177 uvdesc->bDescriptorSubtype)); 1178 break; 1179 } 1180 1181 switch (uvdesc->bDescriptorSubtype) { 1182 case UDESC_VS_INPUT_HEADER: 1183 vs->vs_subtype = UDESC_VS_INPUT_HEADER; 1184 break; 1185 case UDESC_VS_OUTPUT_HEADER: 1186 /* TODO: handle output stream */ 1187 DPRINTF(("uvideo: VS output not implemented\n")); 1188 vs->vs_subtype = UDESC_VS_OUTPUT_HEADER; 1189 return USBD_INVAL; 1190 case UDESC_VS_FORMAT_UNCOMPRESSED: 1191 case UDESC_VS_FORMAT_FRAME_BASED: 1192 case UDESC_VS_FORMAT_MJPEG: 1193 uvideo_stream_init_frame_based_format(vs, 1194 uvdesc, 1195 iter); 1196 break; 1197 case UDESC_VS_FORMAT_MPEG2TS: 1198 case UDESC_VS_FORMAT_DV: 1199 case UDESC_VS_FORMAT_STREAM_BASED: 1200 default: 1201 DPRINTF(("uvideo: unimplemented VS CS " 1202 "descriptor len=%d type=0x%02x " 1203 "subtype=0x%02x\n", 1204 uvdesc->bLength, 1205 uvdesc->bDescriptorType, 1206 uvdesc->bDescriptorSubtype)); 1207 break; 1208 } 1209 break; 1210 default: 1211 DPRINTF(("uvideo_stream_init_desc: " 1212 "unknown descriptor " 1213 "len=%d type=0x%02x\n", 1214 uvdesc->bLength, 1215 uvdesc->bDescriptorType)); 1216 break; 1217 } 1218 } 1219 1220 return USBD_NORMAL_COMPLETION; 1221 } 1222 1223 /* Finialize and free memory associated with this stream. */ 1224 static void 1225 uvideo_stream_free(struct uvideo_stream *vs) 1226 { 1227 struct uvideo_alternate *alt; 1228 struct uvideo_pixel_format *pixel_format; 1229 struct uvideo_format *format; 1230 1231 /* free linked list of alternate interfaces */ 1232 if (vs->vs_xfer_type == UE_ISOCHRONOUS) { 1233 while (!SLIST_EMPTY(&vs->vs_xfer.isoc.ix_altlist)) { 1234 alt = SLIST_FIRST(&vs->vs_xfer.isoc.ix_altlist); 1235 SLIST_REMOVE_HEAD(&vs->vs_xfer.isoc.ix_altlist, 1236 entries); 1237 kmem_free(alt, sizeof(*alt)); 1238 } 1239 } 1240 1241 /* free linked-list of formats and pixel formats */ 1242 while ((format = SIMPLEQ_FIRST(&vs->vs_formats)) != NULL) { 1243 SIMPLEQ_REMOVE_HEAD(&vs->vs_formats, entries); 1244 kmem_free(format, sizeof(struct uvideo_format)); 1245 } 1246 while ((pixel_format = SIMPLEQ_FIRST(&vs->vs_pixel_formats)) != NULL) { 1247 SIMPLEQ_REMOVE_HEAD(&vs->vs_pixel_formats, entries); 1248 kmem_free(pixel_format, sizeof(struct uvideo_pixel_format)); 1249 } 1250 1251 kmem_free(vs, sizeof(*vs)); 1252 } 1253 1254 1255 static usbd_status 1256 uvideo_stream_init_frame_based_format(struct uvideo_stream *vs, 1257 const uvideo_descriptor_t *format_desc, 1258 usbd_desc_iter_t *iter) 1259 { 1260 struct uvideo_pixel_format *pformat, *pfiter; 1261 enum video_pixel_format pixel_format; 1262 struct uvideo_format *format; 1263 const uvideo_descriptor_t *uvdesc; 1264 uint8_t subtype, default_index, index; 1265 uint32_t frame_interval; 1266 const usb_guid_t *guid; 1267 1268 pixel_format = VIDEO_FORMAT_UNDEFINED; 1269 1270 switch (format_desc->bDescriptorSubtype) { 1271 case UDESC_VS_FORMAT_UNCOMPRESSED: 1272 subtype = UDESC_VS_FRAME_UNCOMPRESSED; 1273 default_index = GET(uvideo_vs_format_uncompressed_descriptor_t, 1274 format_desc, 1275 bDefaultFrameIndex); 1276 guid = GETP(uvideo_vs_format_uncompressed_descriptor_t, 1277 format_desc, 1278 guidFormat); 1279 if (usb_guid_cmp(guid, &uvideo_guid_format_yuy2) == 0) 1280 pixel_format = VIDEO_FORMAT_YUY2; 1281 else if (usb_guid_cmp(guid, &uvideo_guid_format_nv12) == 0) 1282 pixel_format = VIDEO_FORMAT_NV12; 1283 else if (usb_guid_cmp(guid, &uvideo_guid_format_uyvy) == 0) 1284 pixel_format = VIDEO_FORMAT_UYVY; 1285 break; 1286 case UDESC_VS_FORMAT_FRAME_BASED: 1287 subtype = UDESC_VS_FRAME_FRAME_BASED; 1288 default_index = GET(uvideo_format_frame_based_descriptor_t, 1289 format_desc, 1290 bDefaultFrameIndex); 1291 break; 1292 case UDESC_VS_FORMAT_MJPEG: 1293 subtype = UDESC_VS_FRAME_MJPEG; 1294 default_index = GET(uvideo_vs_format_mjpeg_descriptor_t, 1295 format_desc, 1296 bDefaultFrameIndex); 1297 pixel_format = VIDEO_FORMAT_MJPEG; 1298 break; 1299 default: 1300 DPRINTF(("uvideo: unknown frame based format %d\n", 1301 format_desc->bDescriptorSubtype)); 1302 return USBD_INVAL; 1303 } 1304 1305 pformat = NULL; 1306 SIMPLEQ_FOREACH(pfiter, &vs->vs_pixel_formats, entries) { 1307 if (pfiter->pixel_format == pixel_format) { 1308 pformat = pfiter; 1309 break; 1310 } 1311 } 1312 if (pixel_format != VIDEO_FORMAT_UNDEFINED && pformat == NULL) { 1313 pformat = kmem_zalloc(sizeof(*pformat), KM_SLEEP); 1314 pformat->pixel_format = pixel_format; 1315 DPRINTF(("uvideo: Adding pixel format %d\n", 1316 pixel_format)); 1317 SIMPLEQ_INSERT_TAIL(&vs->vs_pixel_formats, 1318 pformat, entries); 1319 } 1320 1321 /* Iterate through frame descriptors directly following the 1322 * format descriptor, and add a format to the format list for 1323 * each frame descriptor. */ 1324 while ((uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_peek_next(iter)) && 1325 (uvdesc != NULL) && (uvdesc->bDescriptorSubtype == subtype)) 1326 { 1327 uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_next(iter); 1328 1329 format = kmem_zalloc(sizeof(struct uvideo_format), KM_SLEEP); 1330 if (format == NULL) { 1331 DPRINTF(("uvideo: failed to alloc video format\n")); 1332 return USBD_NOMEM; 1333 } 1334 1335 format->format.pixel_format = pixel_format; 1336 1337 switch (format_desc->bDescriptorSubtype) { 1338 case UDESC_VS_FORMAT_UNCOMPRESSED: 1339 #ifdef UVIDEO_DEBUG 1340 if (pixel_format == VIDEO_FORMAT_UNDEFINED && 1341 uvideodebug) { 1342 guid = GETP( 1343 uvideo_vs_format_uncompressed_descriptor_t, 1344 format_desc, 1345 guidFormat); 1346 1347 DPRINTF(("uvideo: format undefined ")); 1348 usb_guid_print(guid); 1349 DPRINTF(("\n")); 1350 } 1351 #endif 1352 1353 UVIDEO_FORMAT_INIT_FRAME_BASED( 1354 uvideo_vs_format_uncompressed_descriptor_t, 1355 format_desc, 1356 uvideo_vs_frame_uncompressed_descriptor_t, 1357 uvdesc, 1358 format); 1359 format->format.sample_size = 1360 UGETDW( 1361 GET(uvideo_vs_frame_uncompressed_descriptor_t, 1362 uvdesc, dwMaxVideoFrameBufferSize)); 1363 format->format.stride = 1364 format->format.sample_size / format->format.height; 1365 index = GET(uvideo_vs_frame_uncompressed_descriptor_t, 1366 uvdesc, 1367 bFrameIndex); 1368 frame_interval = 1369 UGETDW( 1370 GET(uvideo_vs_frame_uncompressed_descriptor_t, 1371 uvdesc, 1372 dwDefaultFrameInterval)); 1373 break; 1374 case UDESC_VS_FORMAT_MJPEG: 1375 UVIDEO_FORMAT_INIT_FRAME_BASED( 1376 uvideo_vs_format_mjpeg_descriptor_t, 1377 format_desc, 1378 uvideo_vs_frame_mjpeg_descriptor_t, 1379 uvdesc, 1380 format); 1381 format->format.sample_size = 1382 UGETDW( 1383 GET(uvideo_vs_frame_mjpeg_descriptor_t, 1384 uvdesc, dwMaxVideoFrameBufferSize)); 1385 format->format.stride = 1386 format->format.sample_size / format->format.height; 1387 index = GET(uvideo_vs_frame_mjpeg_descriptor_t, 1388 uvdesc, 1389 bFrameIndex); 1390 frame_interval = 1391 UGETDW( 1392 GET(uvideo_vs_frame_mjpeg_descriptor_t, 1393 uvdesc, 1394 dwDefaultFrameInterval)); 1395 break; 1396 case UDESC_VS_FORMAT_FRAME_BASED: 1397 format->format.pixel_format = VIDEO_FORMAT_UNDEFINED; 1398 UVIDEO_FORMAT_INIT_FRAME_BASED( 1399 uvideo_format_frame_based_descriptor_t, 1400 format_desc, 1401 uvideo_frame_frame_based_descriptor_t, 1402 uvdesc, 1403 format); 1404 index = GET(uvideo_frame_frame_based_descriptor_t, 1405 uvdesc, 1406 bFrameIndex); 1407 format->format.stride = 1408 UGETDW( 1409 GET(uvideo_frame_frame_based_descriptor_t, 1410 uvdesc, dwBytesPerLine)); 1411 format->format.sample_size = 1412 format->format.stride * format->format.height; 1413 frame_interval = 1414 UGETDW( 1415 GET(uvideo_frame_frame_based_descriptor_t, 1416 uvdesc, dwDefaultFrameInterval)); 1417 break; 1418 default: 1419 /* shouldn't ever get here */ 1420 DPRINTF(("uvideo: unknown frame based format %d\n", 1421 format_desc->bDescriptorSubtype)); 1422 kmem_free(format, sizeof(struct uvideo_format)); 1423 return USBD_INVAL; 1424 } 1425 1426 DPRINTF(("uvideo: found format (index %d) type %d " 1427 "size %ux%u size %u stride %u interval %u\n", 1428 index, format->format.pixel_format, format->format.width, 1429 format->format.height, format->format.sample_size, 1430 format->format.stride, frame_interval)); 1431 1432 SIMPLEQ_INSERT_TAIL(&vs->vs_formats, format, entries); 1433 1434 if (vs->vs_default_format == NULL && index == default_index 1435 #ifdef UVIDEO_DISABLE_MJPEG 1436 && subtype != UDESC_VS_FRAME_MJPEG 1437 #endif 1438 ) { 1439 DPRINTF((" ^ picking this one\n")); 1440 vs->vs_default_format = &format->format; 1441 vs->vs_frame_interval = frame_interval; 1442 } 1443 1444 } 1445 1446 return USBD_NORMAL_COMPLETION; 1447 } 1448 1449 static int 1450 uvideo_stream_start_xfer(struct uvideo_stream *vs) 1451 { 1452 struct uvideo_softc *sc = vs->vs_parent; 1453 struct uvideo_bulk_xfer *bx; 1454 struct uvideo_isoc_xfer *ix; 1455 uint32_t vframe_len; /* rough bytes per video frame */ 1456 uint32_t uframe_len; /* bytes per usb frame (TODO: or microframe?) */ 1457 uint32_t nframes; /* number of usb frames (TODO: or microframs?) */ 1458 int i, ret; 1459 1460 struct uvideo_alternate *alt, *alt_maybe; 1461 usbd_status err; 1462 1463 switch (vs->vs_xfer_type) { 1464 case UE_BULK: 1465 ret = 0; 1466 bx = &vs->vs_xfer.bulk; 1467 1468 bx->bx_xfer = usbd_alloc_xfer(sc->sc_udev); 1469 if (bx->bx_xfer == NULL) { 1470 DPRINTF(("uvideo: couldn't allocate xfer\n")); 1471 return ENOMEM; 1472 } 1473 DPRINTF(("uvideo: xfer %p\n", bx->bx_xfer)); 1474 1475 bx->bx_buflen = vs->vs_max_payload_size; 1476 1477 DPRINTF(("uvideo: allocating %u byte buffer\n", bx->bx_buflen)); 1478 bx->bx_buffer = usbd_alloc_buffer(bx->bx_xfer, bx->bx_buflen); 1479 if (bx->bx_buffer == NULL) { 1480 DPRINTF(("uvideo: couldn't allocate buffer\n")); 1481 return ENOMEM; 1482 } 1483 1484 err = usbd_open_pipe(vs->vs_iface, bx->bx_endpt, 0, 1485 &bx->bx_pipe); 1486 if (err != USBD_NORMAL_COMPLETION) { 1487 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1488 usbd_errstr(err), err)); 1489 return EIO; 1490 } 1491 DPRINTF(("uvideo: pipe %p\n", bx->bx_pipe)); 1492 1493 mutex_enter(&bx->bx_lock); 1494 if (bx->bx_running == false) { 1495 bx->bx_running = true; 1496 ret = kthread_create(PRI_UVIDEO, 0, NULL, 1497 uvideo_stream_recv_bulk_transfer, vs, 1498 NULL, device_xname(sc->sc_dev)); 1499 if (ret) { 1500 DPRINTF(("uvideo: couldn't create kthread:" 1501 " %d\n", err)); 1502 bx->bx_running = false; 1503 mutex_exit(&bx->bx_lock); 1504 return err; 1505 } 1506 } else 1507 aprint_error_dev(sc->sc_dev, 1508 "transfer already in progress\n"); 1509 mutex_exit(&bx->bx_lock); 1510 1511 DPRINTF(("uvideo: thread created\n")); 1512 1513 return 0; 1514 case UE_ISOCHRONOUS: 1515 ix = &vs->vs_xfer.isoc; 1516 1517 /* Choose an alternate interface most suitable for 1518 * this format. Choose the smallest size that can 1519 * contain max_payload_size. 1520 * 1521 * It is assumed that the list is sorted in descending 1522 * order from largest to smallest packet size. 1523 * 1524 * TODO: what should the strategy be for choosing an 1525 * alt interface? 1526 */ 1527 alt = NULL; 1528 SLIST_FOREACH(alt_maybe, &ix->ix_altlist, entries) { 1529 /* TODO: define "packet" and "payload". I think 1530 * several packets can make up one payload which would 1531 * call into question this method of selecting an 1532 * alternate interface... */ 1533 1534 /* XXXJDM don't allow packet size > 1024 for now */ 1535 if (alt_maybe->max_packet_size > 1024) 1536 continue; 1537 1538 if (alt == NULL || 1539 alt_maybe->max_packet_size >= alt->max_packet_size) 1540 alt = alt_maybe; 1541 } 1542 1543 if (alt == NULL) { 1544 DPRINTF(("uvideo_stream_start_xfer: " 1545 "no suitable alternate interface found\n")); 1546 return EINVAL; 1547 } 1548 1549 DPRINTFN(15,("uvideo_stream_start_xfer: " 1550 "choosing alternate interface " 1551 "%d wMaxPacketSize=%d bInterval=%d\n", 1552 alt->altno, alt->max_packet_size, alt->interval)); 1553 1554 err = usbd_set_interface(vs->vs_iface, alt->altno); 1555 if (err != USBD_NORMAL_COMPLETION) { 1556 DPRINTF(("uvideo_stream_start_xfer: " 1557 "error setting alt interface: %s (%d)\n", 1558 usbd_errstr(err), err)); 1559 return EIO; 1560 } 1561 1562 /* TODO: "packet" not same as frame */ 1563 vframe_len = vs->vs_current_format.sample_size; 1564 uframe_len = alt->max_packet_size; 1565 nframes = (vframe_len + uframe_len - 1) / uframe_len; 1566 DPRINTF(("uvideo_stream_start_xfer: nframes=%d\n", nframes)); 1567 1568 ix->ix_nframes = nframes; 1569 ix->ix_uframe_len = uframe_len; 1570 for (i = 0; i < UVIDEO_NXFERS; i++) { 1571 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1572 isoc->i_frlengths = 1573 kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, 1574 KM_SLEEP); 1575 if (isoc->i_frlengths == NULL) { 1576 DPRINTF(("uvideo: failed to alloc frlengths:" 1577 "%s (%d)\n", 1578 usbd_errstr(err), err)); 1579 return ENOMEM; 1580 } 1581 } 1582 1583 err = usbd_open_pipe(vs->vs_iface, ix->ix_endpt, 1584 USBD_EXCLUSIVE_USE, &ix->ix_pipe); 1585 if (err != USBD_NORMAL_COMPLETION) { 1586 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1587 usbd_errstr(err), err)); 1588 return EIO; 1589 } 1590 1591 for (i = 0; i < UVIDEO_NXFERS; i++) { 1592 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1593 isoc->i_xfer = usbd_alloc_xfer(sc->sc_udev); 1594 if (isoc->i_xfer == NULL) { 1595 DPRINTF(("uvideo: failed to alloc xfer: %s" 1596 " (%d)\n", 1597 usbd_errstr(err), err)); 1598 return ENOMEM; 1599 } 1600 1601 isoc->i_buf = usbd_alloc_buffer(isoc->i_xfer, 1602 nframes * uframe_len); 1603 if (isoc->i_xfer == NULL) { 1604 DPRINTF(("uvideo: failed to alloc buf: %s" 1605 " (%d)\n", 1606 usbd_errstr(err), err)); 1607 return ENOMEM; 1608 } 1609 } 1610 1611 uvideo_stream_recv_isoc_start(vs); 1612 1613 return 0; 1614 default: 1615 /* should never get here */ 1616 DPRINTF(("uvideo_stream_start_xfer: unknown xfer type 0x%x\n", 1617 vs->vs_xfer_type)); 1618 return EINVAL; 1619 } 1620 } 1621 1622 static int 1623 uvideo_stream_stop_xfer(struct uvideo_stream *vs) 1624 { 1625 struct uvideo_bulk_xfer *bx; 1626 struct uvideo_isoc_xfer *ix; 1627 usbd_status err; 1628 int i; 1629 1630 switch (vs->vs_xfer_type) { 1631 case UE_BULK: 1632 bx = &vs->vs_xfer.bulk; 1633 1634 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: " 1635 "waiting for thread to complete\n")); 1636 mutex_enter(&bx->bx_lock); 1637 if (bx->bx_running == true) { 1638 bx->bx_running = false; 1639 cv_wait_sig(&bx->bx_cv, &bx->bx_lock); 1640 } 1641 mutex_exit(&bx->bx_lock); 1642 1643 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: cleaning up\n")); 1644 1645 if (bx->bx_pipe) { 1646 usbd_abort_pipe(bx->bx_pipe); 1647 usbd_close_pipe(bx->bx_pipe); 1648 bx->bx_pipe = NULL; 1649 } 1650 1651 if (bx->bx_xfer) { 1652 usbd_free_xfer(bx->bx_xfer); 1653 bx->bx_xfer = NULL; 1654 } 1655 1656 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: done\n")); 1657 1658 return 0; 1659 case UE_ISOCHRONOUS: 1660 ix = &vs->vs_xfer.isoc; 1661 if (ix->ix_pipe != NULL) { 1662 usbd_abort_pipe(ix->ix_pipe); 1663 usbd_close_pipe(ix->ix_pipe); 1664 ix->ix_pipe = NULL; 1665 } 1666 1667 for (i = 0; i < UVIDEO_NXFERS; i++) { 1668 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1669 if (isoc->i_xfer != NULL) { 1670 usbd_free_buffer(isoc->i_xfer); 1671 usbd_free_xfer(isoc->i_xfer); 1672 isoc->i_xfer = NULL; 1673 } 1674 1675 if (isoc->i_frlengths != NULL) { 1676 kmem_free(isoc->i_frlengths, 1677 sizeof(isoc->i_frlengths[0]) * 1678 ix->ix_nframes); 1679 isoc->i_frlengths = NULL; 1680 } 1681 } 1682 1683 /* Give it some time to settle */ 1684 usbd_delay_ms(vs->vs_parent->sc_udev, 1000); 1685 1686 /* Set to zero bandwidth alternate interface zero */ 1687 err = usbd_set_interface(vs->vs_iface, 0); 1688 if (err != USBD_NORMAL_COMPLETION) { 1689 DPRINTF(("uvideo_stream_stop_transfer: " 1690 "error setting zero bandwidth interface: " 1691 "%s (%d)\n", 1692 usbd_errstr(err), err)); 1693 return EIO; 1694 } 1695 1696 return 0; 1697 default: 1698 /* should never get here */ 1699 DPRINTF(("uvideo_stream_stop_xfer: unknown xfer type 0x%x\n", 1700 vs->vs_xfer_type)); 1701 return EINVAL; 1702 } 1703 } 1704 1705 static usbd_status 1706 uvideo_stream_recv_isoc_start(struct uvideo_stream *vs) 1707 { 1708 int i; 1709 1710 for (i = 0; i < UVIDEO_NXFERS; i++) 1711 uvideo_stream_recv_isoc_start1(&vs->vs_xfer.isoc.ix_i[i]); 1712 1713 return USBD_NORMAL_COMPLETION; 1714 } 1715 1716 /* Initiate a usb transfer. */ 1717 static usbd_status 1718 uvideo_stream_recv_isoc_start1(struct uvideo_isoc *isoc) 1719 { 1720 struct uvideo_isoc_xfer *ix; 1721 usbd_status err; 1722 int i; 1723 1724 ix = isoc->i_ix; 1725 1726 for (i = 0; i < ix->ix_nframes; ++i) 1727 isoc->i_frlengths[i] = ix->ix_uframe_len; 1728 1729 usbd_setup_isoc_xfer(isoc->i_xfer, 1730 ix->ix_pipe, 1731 isoc, 1732 isoc->i_frlengths, 1733 ix->ix_nframes, 1734 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1735 uvideo_stream_recv_isoc_complete); 1736 1737 err = usbd_transfer(isoc->i_xfer); 1738 if (err != USBD_IN_PROGRESS) { 1739 DPRINTF(("uvideo_stream_recv_start: " 1740 "usbd_transfer status=%s (%d)\n", 1741 usbd_errstr(err), err)); 1742 } 1743 return err; 1744 } 1745 1746 static usbd_status 1747 uvideo_stream_recv_process(struct uvideo_stream *vs, uint8_t *buf, uint32_t len) 1748 { 1749 uvideo_payload_header_t *hdr; 1750 struct video_payload payload; 1751 1752 if (len < sizeof(uvideo_payload_header_t)) { 1753 DPRINTF(("uvideo_stream_recv_process: len %d < payload hdr\n", 1754 len)); 1755 return USBD_SHORT_XFER; 1756 } 1757 1758 hdr = (uvideo_payload_header_t *)buf; 1759 1760 if (hdr->bHeaderLength > UVIDEO_PAYLOAD_HEADER_SIZE || 1761 hdr->bHeaderLength < sizeof(uvideo_payload_header_t)) 1762 return USBD_INVAL; 1763 if (hdr->bHeaderLength == len && !(hdr->bmHeaderInfo & UV_END_OF_FRAME)) 1764 return USBD_INVAL; 1765 if (hdr->bmHeaderInfo & UV_ERROR) 1766 return USBD_IOERROR; 1767 1768 payload.data = buf + hdr->bHeaderLength; 1769 payload.size = len - hdr->bHeaderLength; 1770 payload.frameno = hdr->bmHeaderInfo & UV_FRAME_ID; 1771 payload.end_of_frame = hdr->bmHeaderInfo & UV_END_OF_FRAME; 1772 1773 video_submit_payload(vs->vs_parent->sc_videodev, &payload); 1774 1775 return USBD_NORMAL_COMPLETION; 1776 } 1777 1778 /* Callback on completion of usb isoc transfer */ 1779 static void 1780 uvideo_stream_recv_isoc_complete(usbd_xfer_handle xfer, 1781 usbd_private_handle priv, 1782 usbd_status status) 1783 { 1784 struct uvideo_stream *vs; 1785 struct uvideo_isoc_xfer *ix; 1786 struct uvideo_isoc *isoc; 1787 int i; 1788 uint32_t count; 1789 const uvideo_payload_header_t *hdr; 1790 uint8_t *buf; 1791 1792 isoc = priv; 1793 vs = isoc->i_vs; 1794 ix = isoc->i_ix; 1795 1796 if (status != USBD_NORMAL_COMPLETION) { 1797 DPRINTF(("uvideo_stream_recv_isoc_complete: status=%s (%d)\n", 1798 usbd_errstr(status), status)); 1799 1800 if (status == USBD_STALLED) 1801 usbd_clear_endpoint_stall_async(ix->ix_pipe); 1802 else 1803 return; 1804 } else { 1805 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1806 1807 if (count == 0) { 1808 /* DPRINTF(("uvideo: zero length transfer\n")); */ 1809 goto next; 1810 } 1811 1812 hdr = (const uvideo_payload_header_t *)isoc->i_buf; 1813 1814 for (i = 0, buf = isoc->i_buf; 1815 i < ix->ix_nframes; 1816 ++i, buf += ix->ix_uframe_len) 1817 { 1818 status = uvideo_stream_recv_process(vs, buf, 1819 isoc->i_frlengths[i]); 1820 if (status == USBD_IOERROR) 1821 break; 1822 } 1823 } 1824 1825 next: 1826 uvideo_stream_recv_isoc_start1(isoc); 1827 } 1828 1829 static void 1830 uvideo_stream_recv_bulk_transfer(void *addr) 1831 { 1832 struct uvideo_stream *vs = addr; 1833 struct uvideo_bulk_xfer *bx = &vs->vs_xfer.bulk; 1834 usbd_status err; 1835 uint32_t len; 1836 1837 DPRINTF(("uvideo_stream_recv_bulk_transfer: " 1838 "vs %p sc %p bx %p buffer %p\n", vs, vs->vs_parent, bx, 1839 bx->bx_buffer)); 1840 1841 while (bx->bx_running) { 1842 len = bx->bx_buflen; 1843 err = usbd_bulk_transfer(bx->bx_xfer, bx->bx_pipe, 1844 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1845 USBD_NO_TIMEOUT, 1846 bx->bx_buffer, &len, "uvideorb"); 1847 1848 if (err == USBD_NORMAL_COMPLETION) { 1849 uvideo_stream_recv_process(vs, bx->bx_buffer, len); 1850 } else { 1851 DPRINTF(("uvideo_stream_recv_bulk_transfer: %s\n", 1852 usbd_errstr(err))); 1853 } 1854 } 1855 1856 DPRINTF(("uvideo_stream_recv_bulk_transfer: notify complete\n")); 1857 1858 mutex_enter(&bx->bx_lock); 1859 cv_broadcast(&bx->bx_cv); 1860 mutex_exit(&bx->bx_lock); 1861 1862 DPRINTF(("uvideo_stream_recv_bulk_transfer: return\n")); 1863 1864 kthread_exit(0); 1865 } 1866 1867 /* 1868 * uvideo_open - probe and commit video format and start receiving 1869 * video data 1870 */ 1871 static int 1872 uvideo_open(void *addr, int flags) 1873 { 1874 struct uvideo_softc *sc; 1875 struct uvideo_stream *vs; 1876 struct video_format fmt; 1877 1878 sc = addr; 1879 vs = sc->sc_stream_in; 1880 1881 DPRINTF(("uvideo_open: sc=%p\n", sc)); 1882 if (sc->sc_dying) 1883 return EIO; 1884 1885 /* XXX select default format */ 1886 fmt = *vs->vs_default_format; 1887 return uvideo_set_format(addr, &fmt); 1888 } 1889 1890 1891 static void 1892 uvideo_close(void *addr) 1893 { 1894 struct uvideo_softc *sc; 1895 1896 sc = addr; 1897 1898 if (sc->sc_state != UVIDEO_STATE_CLOSED) { 1899 sc->sc_state = UVIDEO_STATE_CLOSED; 1900 } 1901 } 1902 1903 static const char * 1904 uvideo_get_devname(void *addr) 1905 { 1906 struct uvideo_softc *sc = addr; 1907 return sc->sc_devname; 1908 } 1909 1910 static int 1911 uvideo_enum_format(void *addr, uint32_t index, struct video_format *format) 1912 { 1913 struct uvideo_softc *sc = addr; 1914 struct uvideo_stream *vs = sc->sc_stream_in; 1915 struct uvideo_pixel_format *pixel_format; 1916 int off; 1917 1918 if (sc->sc_dying) 1919 return EIO; 1920 1921 off = 0; 1922 SIMPLEQ_FOREACH(pixel_format, &vs->vs_pixel_formats, entries) { 1923 if (off++ != index) 1924 continue; 1925 format->pixel_format = pixel_format->pixel_format; 1926 return 0; 1927 } 1928 1929 return EINVAL; 1930 } 1931 1932 /* 1933 * uvideo_get_format 1934 */ 1935 static int 1936 uvideo_get_format(void *addr, struct video_format *format) 1937 { 1938 struct uvideo_softc *sc = addr; 1939 struct uvideo_stream *vs = sc->sc_stream_in; 1940 1941 if (sc->sc_dying) 1942 return EIO; 1943 1944 *format = vs->vs_current_format; 1945 1946 return 0; 1947 } 1948 1949 /* 1950 * uvideo_set_format - TODO: this is boken and does nothing 1951 */ 1952 static int 1953 uvideo_set_format(void *addr, struct video_format *format) 1954 { 1955 struct uvideo_softc *sc; 1956 struct uvideo_stream *vs; 1957 struct uvideo_format *uvfmt; 1958 uvideo_probe_and_commit_data_t probe, maxprobe; 1959 uint8_t ifaceno; 1960 usbd_status err; 1961 1962 sc = addr; 1963 1964 DPRINTF(("uvideo_set_format: sc=%p\n", sc)); 1965 if (sc->sc_dying) 1966 return EIO; 1967 1968 vs = sc->sc_stream_in; 1969 ifaceno = vs->vs_ifaceno; 1970 1971 uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, 1972 format->width, format->height); 1973 if (uvfmt == NULL) { 1974 DPRINTF(("uvideo: uvideo_stream_guess_format couldn't find " 1975 "%dx%d format %d\n", format->width, format->height, 1976 format->pixel_format)); 1977 return EINVAL; 1978 } 1979 1980 uvideo_init_probe_data(&probe); 1981 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); 1982 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); 1983 USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ 1984 1985 maxprobe = probe; 1986 err = uvideo_stream_probe(vs, UR_GET_MAX, &maxprobe); 1987 if (err) { 1988 DPRINTF(("uvideo: error probe/GET_MAX: %s (%d)\n", 1989 usbd_errstr(err), err)); 1990 } else { 1991 USETW(probe.wCompQuality, UGETW(maxprobe.wCompQuality)); 1992 } 1993 1994 err = uvideo_stream_probe(vs, UR_SET_CUR, &probe); 1995 if (err) { 1996 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 1997 usbd_errstr(err), err)); 1998 return EIO; 1999 } 2000 2001 uvideo_init_probe_data(&probe); 2002 err = uvideo_stream_probe(vs, UR_GET_CUR, &probe); 2003 if (err) { 2004 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2005 usbd_errstr(err), err)); 2006 return EIO; 2007 } 2008 2009 if (probe.bFormatIndex != UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt)) { 2010 DPRINTF(("uvideo: probe/GET_CUR returned format index %d " 2011 "(expected %d)\n", probe.bFormatIndex, 2012 UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt))); 2013 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); 2014 } 2015 if (probe.bFrameIndex != UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt)) { 2016 DPRINTF(("uvideo: probe/GET_CUR returned frame index %d " 2017 "(expected %d)\n", probe.bFrameIndex, 2018 UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt))); 2019 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); 2020 } 2021 USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ 2022 2023 /* commit/SET_CUR. Fourth step is to set the alternate 2024 * interface. Currently the fourth step is in 2025 * uvideo_start_transfer. Maybe move it here? */ 2026 err = uvideo_stream_commit(vs, UR_SET_CUR, &probe); 2027 if (err) { 2028 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2029 usbd_errstr(err), err)); 2030 return EIO; 2031 } 2032 2033 DPRINTFN(15, ("uvideo_set_format: committing to format: " 2034 "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " 2035 "dwFrameInterval=%u wKeyFrameRate=%d wPFrameRate=%d " 2036 "wCompQuality=%d wCompWindowSize=%d wDelay=%d " 2037 "dwMaxVideoFrameSize=%u dwMaxPayloadTransferSize=%u", 2038 UGETW(probe.bmHint), 2039 probe.bFormatIndex, 2040 probe.bFrameIndex, 2041 UGETDW(probe.dwFrameInterval), 2042 UGETW(probe.wKeyFrameRate), 2043 UGETW(probe.wPFrameRate), 2044 UGETW(probe.wCompQuality), 2045 UGETW(probe.wCompWindowSize), 2046 UGETW(probe.wDelay), 2047 UGETDW(probe.dwMaxVideoFrameSize), 2048 UGETDW(probe.dwMaxPayloadTransferSize))); 2049 if (vs->vs_probelen == 34) { 2050 DPRINTFN(15, (" dwClockFrequency=%u bmFramingInfo=0x%02x " 2051 "bPreferedVersion=%d bMinVersion=%d " 2052 "bMaxVersion=%d", 2053 UGETDW(probe.dwClockFrequency), 2054 probe.bmFramingInfo, 2055 probe.bPreferedVersion, 2056 probe.bMinVersion, 2057 probe.bMaxVersion)); 2058 } 2059 DPRINTFN(15, ("\n")); 2060 2061 vs->vs_frame_interval = UGETDW(probe.dwFrameInterval); 2062 vs->vs_max_payload_size = UGETDW(probe.dwMaxPayloadTransferSize); 2063 2064 *format = uvfmt->format; 2065 vs->vs_current_format = *format; 2066 DPRINTF(("uvideo_set_format: pixeltype is %d\n", format->pixel_format)); 2067 2068 return 0; 2069 } 2070 2071 static int 2072 uvideo_try_format(void *addr, struct video_format *format) 2073 { 2074 struct uvideo_softc *sc = addr; 2075 struct uvideo_stream *vs = sc->sc_stream_in; 2076 struct uvideo_format *uvfmt; 2077 2078 uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, 2079 format->width, format->height); 2080 if (uvfmt == NULL) 2081 return EINVAL; 2082 2083 *format = uvfmt->format; 2084 return 0; 2085 } 2086 2087 static int 2088 uvideo_start_transfer(void *addr) 2089 { 2090 struct uvideo_softc *sc = addr; 2091 struct uvideo_stream *vs; 2092 int s, err; 2093 2094 /* FIXME: this functions should be stream specific */ 2095 vs = SLIST_FIRST(&sc->sc_stream_list); 2096 s = splusb(); 2097 err = uvideo_stream_start_xfer(vs); 2098 splx(s); 2099 2100 return err; 2101 } 2102 2103 static int 2104 uvideo_stop_transfer(void *addr) 2105 { 2106 struct uvideo_softc *sc; 2107 int err, s; 2108 2109 sc = addr; 2110 2111 s = splusb(); 2112 err = uvideo_stream_stop_xfer(sc->sc_stream_in); 2113 splx(s); 2114 2115 return err; 2116 } 2117 2118 2119 static int 2120 uvideo_get_control_group(void *addr, struct video_control_group *group) 2121 { 2122 struct uvideo_softc *sc; 2123 usb_device_request_t req; 2124 usbd_status err; 2125 uint8_t control_id, ent_id, data[16]; 2126 uint16_t len; 2127 int s; 2128 2129 sc = addr; 2130 2131 /* request setup */ 2132 switch (group->group_id) { 2133 case VIDEO_CONTROL_PANTILT_RELATIVE: 2134 if (group->length != 4) 2135 return EINVAL; 2136 2137 return EINVAL; 2138 case VIDEO_CONTROL_SHARPNESS: 2139 if (group->length != 1) 2140 return EINVAL; 2141 2142 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 2143 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 2144 len = 2; 2145 break; 2146 default: 2147 return EINVAL; 2148 } 2149 2150 /* do request */ 2151 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 2152 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 2153 UVIDEO_REQUEST_TYPE_GET; 2154 req.bRequest = UR_GET_CUR; 2155 USETW(req.wValue, control_id << 8); 2156 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 2157 USETW(req.wLength, len); 2158 2159 s = splusb(); 2160 err = usbd_do_request(sc->sc_udev, &req, data); 2161 splx(s); 2162 if (err != USBD_NORMAL_COMPLETION) { 2163 DPRINTF(("uvideo_set_control: error %s (%d)\n", 2164 usbd_errstr(err), err)); 2165 return EIO; /* TODO: more detail here? */ 2166 } 2167 2168 /* extract request data */ 2169 switch (group->group_id) { 2170 case VIDEO_CONTROL_SHARPNESS: 2171 group->control[0].value = UGETW(data); 2172 break; 2173 default: 2174 return EINVAL; 2175 } 2176 2177 return 0; 2178 } 2179 2180 2181 static int 2182 uvideo_set_control_group(void *addr, const struct video_control_group *group) 2183 { 2184 struct uvideo_softc *sc; 2185 usb_device_request_t req; 2186 usbd_status err; 2187 uint8_t control_id, ent_id, data[16]; /* long enough for all controls */ 2188 uint16_t len; 2189 int s; 2190 2191 sc = addr; 2192 2193 switch (group->group_id) { 2194 case VIDEO_CONTROL_PANTILT_RELATIVE: 2195 if (group->length != 4) 2196 return EINVAL; 2197 2198 if (group->control[0].value != 0 || 2199 group->control[0].value != 1 || 2200 group->control[0].value != 0xff) 2201 return ERANGE; 2202 2203 if (group->control[2].value != 0 || 2204 group->control[2].value != 1 || 2205 group->control[2].value != 0xff) 2206 return ERANGE; 2207 2208 control_id = UVIDEO_CT_PANTILT_RELATIVE_CONTROL; 2209 ent_id = 1; /* TODO: hardcoded logitech camera terminal */ 2210 len = 4; 2211 data[0] = group->control[0].value; 2212 data[1] = group->control[1].value; 2213 data[2] = group->control[2].value; 2214 data[3] = group->control[3].value; 2215 break; 2216 case VIDEO_CONTROL_BRIGHTNESS: 2217 if (group->length != 1) 2218 return EINVAL; 2219 control_id = UVIDEO_PU_BRIGHTNESS_CONTROL; 2220 ent_id = 2; 2221 len = 2; 2222 USETW(data, group->control[0].value); 2223 break; 2224 case VIDEO_CONTROL_GAIN: 2225 if (group->length != 1) 2226 return EINVAL; 2227 control_id = UVIDEO_PU_GAIN_CONTROL; 2228 ent_id = 2; 2229 len = 2; 2230 USETW(data, group->control[0].value); 2231 break; 2232 case VIDEO_CONTROL_SHARPNESS: 2233 if (group->length != 1) 2234 return EINVAL; 2235 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 2236 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 2237 len = 2; 2238 USETW(data, group->control[0].value); 2239 break; 2240 default: 2241 return EINVAL; 2242 } 2243 2244 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 2245 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 2246 UVIDEO_REQUEST_TYPE_SET; 2247 req.bRequest = UR_SET_CUR; 2248 USETW(req.wValue, control_id << 8); 2249 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 2250 USETW(req.wLength, len); 2251 2252 s = splusb(); 2253 err = usbd_do_request(sc->sc_udev, &req, data); 2254 splx(s); 2255 if (err != USBD_NORMAL_COMPLETION) { 2256 DPRINTF(("uvideo_set_control: error %s (%d)\n", 2257 usbd_errstr(err), err)); 2258 return EIO; /* TODO: more detail here? */ 2259 } 2260 2261 return 0; 2262 } 2263 2264 static usbd_status 2265 uvideo_stream_probe_and_commit(struct uvideo_stream *vs, 2266 uint8_t action, uint8_t control, 2267 void *data) 2268 { 2269 usb_device_request_t req; 2270 2271 switch (action) { 2272 case UR_SET_CUR: 2273 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 2274 USETW(req.wLength, vs->vs_probelen); 2275 break; 2276 case UR_GET_CUR: 2277 case UR_GET_MIN: 2278 case UR_GET_MAX: 2279 case UR_GET_DEF: 2280 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2281 USETW(req.wLength, vs->vs_probelen); 2282 break; 2283 case UR_GET_INFO: 2284 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2285 USETW(req.wLength, sizeof(uByte)); 2286 break; 2287 case UR_GET_LEN: 2288 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2289 USETW(req.wLength, sizeof(uWord)); /* is this right? */ 2290 break; 2291 default: 2292 DPRINTF(("uvideo_probe_and_commit: " 2293 "unknown request action %d\n", action)); 2294 return USBD_NOT_STARTED; 2295 } 2296 2297 req.bRequest = action; 2298 USETW2(req.wValue, control, 0); 2299 USETW2(req.wIndex, 0, vs->vs_ifaceno); 2300 2301 return (usbd_do_request_flags(vs->vs_parent->sc_udev, &req, data, 2302 0, 0, 2303 USBD_DEFAULT_TIMEOUT)); 2304 } 2305 2306 static void 2307 uvideo_init_probe_data(uvideo_probe_and_commit_data_t *probe) 2308 { 2309 /* all zeroes tells camera to choose what it wants */ 2310 memset(probe, 0, sizeof(*probe)); 2311 } 2312 2313 2314 #ifdef _MODULE 2315 2316 MODULE(MODULE_CLASS_DRIVER, uvideo, NULL); 2317 static const struct cfiattrdata videobuscf_iattrdata = { 2318 "videobus", 0, { 2319 { NULL, NULL, 0 }, 2320 } 2321 }; 2322 static const struct cfiattrdata * const uvideo_attrs[] = { 2323 &videobuscf_iattrdata, NULL 2324 }; 2325 CFDRIVER_DECL(uvideo, DV_DULL, uvideo_attrs); 2326 extern struct cfattach uvideo_ca; 2327 extern struct cfattach uvideo_ca; 2328 static int uvideoloc[6] = { -1, -1, -1, -1, -1, -1 }; 2329 static struct cfparent uhubparent = { 2330 "usbifif", NULL, DVUNIT_ANY 2331 }; 2332 static struct cfdata uvideo_cfdata[] = { 2333 { 2334 .cf_name = "uvideo", 2335 .cf_atname = "uvideo", 2336 .cf_unit = 0, 2337 .cf_fstate = FSTATE_STAR, 2338 .cf_loc = uvideoloc, 2339 .cf_flags = 0, 2340 .cf_pspec = &uhubparent, 2341 }, 2342 { NULL } 2343 }; 2344 2345 static int 2346 uvideo_modcmd(modcmd_t cmd, void *arg) 2347 { 2348 int err; 2349 2350 2351 switch (cmd) { 2352 case MODULE_CMD_INIT: 2353 DPRINTF(("uvideo: attempting to load\n")); 2354 2355 err = config_cfdriver_attach(&uvideo_cd); 2356 if (err) 2357 return err; 2358 err = config_cfattach_attach("uvideo", &uvideo_ca); 2359 if (err) { 2360 config_cfdriver_detach(&uvideo_cd); 2361 return err; 2362 } 2363 err = config_cfdata_attach(uvideo_cfdata, 1); 2364 if (err) { 2365 config_cfattach_detach("uvideo", &uvideo_ca); 2366 config_cfdriver_detach(&uvideo_cd); 2367 return err; 2368 } 2369 DPRINTF(("uvideo: loaded module\n")); 2370 return 0; 2371 case MODULE_CMD_FINI: 2372 DPRINTF(("uvideo: attempting to unload module\n")); 2373 err = config_cfdata_detach(uvideo_cfdata); 2374 if (err) 2375 return err; 2376 config_cfattach_detach("uvideo", &uvideo_ca); 2377 config_cfdriver_detach(&uvideo_cd); 2378 DPRINTF(("uvideo: module unload\n")); 2379 return 0; 2380 default: 2381 return ENOTTY; 2382 } 2383 } 2384 2385 #endif /* _MODULE */ 2386 2387 2388 #ifdef UVIDEO_DEBUG 2389 /* Some functions to print out descriptors. Mostly useless other than 2390 * debugging/exploration purposes. */ 2391 2392 2393 static void 2394 print_bitmap(const uByte *start, uByte nbytes) 2395 { 2396 int byte, bit; 2397 2398 /* most significant first */ 2399 for (byte = nbytes-1; byte >= 0; --byte) { 2400 if (byte < nbytes-1) printf("-"); 2401 for (bit = 7; bit >= 0; --bit) 2402 printf("%01d", (start[byte] >> bit) &1); 2403 } 2404 } 2405 2406 static void 2407 print_descriptor(const usb_descriptor_t *desc) 2408 { 2409 static int current_class = -1; 2410 static int current_subclass = -1; 2411 2412 if (desc->bDescriptorType == UDESC_INTERFACE) { 2413 const usb_interface_descriptor_t *id; 2414 id = (const usb_interface_descriptor_t *)desc; 2415 current_class = id->bInterfaceClass; 2416 current_subclass = id->bInterfaceSubClass; 2417 print_interface_descriptor(id); 2418 printf("\n"); 2419 return; 2420 } 2421 2422 printf(" "); /* indent */ 2423 2424 if (current_class == UICLASS_VIDEO) { 2425 switch (current_subclass) { 2426 case UISUBCLASS_VIDEOCONTROL: 2427 print_vc_descriptor(desc); 2428 break; 2429 case UISUBCLASS_VIDEOSTREAMING: 2430 print_vs_descriptor(desc); 2431 break; 2432 case UISUBCLASS_VIDEOCOLLECTION: 2433 printf("uvc collection: len=%d type=0x%02x", 2434 desc->bLength, desc->bDescriptorType); 2435 break; 2436 } 2437 } else { 2438 printf("non uvc descriptor len=%d type=0x%02x", 2439 desc->bLength, desc->bDescriptorType); 2440 } 2441 2442 printf("\n"); 2443 } 2444 2445 static void 2446 print_vc_descriptor(const usb_descriptor_t *desc) 2447 { 2448 const uvideo_descriptor_t *vcdesc; 2449 2450 printf("VC "); 2451 2452 switch (desc->bDescriptorType) { 2453 case UDESC_ENDPOINT: 2454 print_endpoint_descriptor( 2455 (const usb_endpoint_descriptor_t *)desc); 2456 break; 2457 case UDESC_CS_INTERFACE: 2458 vcdesc = (const uvideo_descriptor_t *)desc; 2459 switch (vcdesc->bDescriptorSubtype) { 2460 case UDESC_VC_HEADER: 2461 print_vc_header_descriptor( 2462 (const uvideo_vc_header_descriptor_t *) 2463 vcdesc); 2464 break; 2465 case UDESC_INPUT_TERMINAL: 2466 switch (UGETW( 2467 ((const uvideo_input_terminal_descriptor_t *) 2468 vcdesc)->wTerminalType)) { 2469 case UVIDEO_ITT_CAMERA: 2470 print_camera_terminal_descriptor( 2471 (const uvideo_camera_terminal_descriptor_t *)vcdesc); 2472 break; 2473 default: 2474 print_input_terminal_descriptor( 2475 (const uvideo_input_terminal_descriptor_t *)vcdesc); 2476 break; 2477 } 2478 break; 2479 case UDESC_OUTPUT_TERMINAL: 2480 print_output_terminal_descriptor( 2481 (const uvideo_output_terminal_descriptor_t *) 2482 vcdesc); 2483 break; 2484 case UDESC_SELECTOR_UNIT: 2485 print_selector_unit_descriptor( 2486 (const uvideo_selector_unit_descriptor_t *) 2487 vcdesc); 2488 break; 2489 case UDESC_PROCESSING_UNIT: 2490 print_processing_unit_descriptor( 2491 (const uvideo_processing_unit_descriptor_t *) 2492 vcdesc); 2493 break; 2494 case UDESC_EXTENSION_UNIT: 2495 print_extension_unit_descriptor( 2496 (const uvideo_extension_unit_descriptor_t *) 2497 vcdesc); 2498 break; 2499 default: 2500 printf("class specific interface " 2501 "len=%d type=0x%02x subtype=0x%02x", 2502 vcdesc->bLength, 2503 vcdesc->bDescriptorType, 2504 vcdesc->bDescriptorSubtype); 2505 break; 2506 } 2507 break; 2508 case UDESC_CS_ENDPOINT: 2509 vcdesc = (const uvideo_descriptor_t *)desc; 2510 switch (vcdesc->bDescriptorSubtype) { 2511 case UDESC_VC_INTERRUPT_ENDPOINT: 2512 print_interrupt_endpoint_descriptor( 2513 (const uvideo_vc_interrupt_endpoint_descriptor_t *) 2514 vcdesc); 2515 break; 2516 default: 2517 printf("class specific endpoint " 2518 "len=%d type=0x%02x subtype=0x%02x", 2519 vcdesc->bLength, 2520 vcdesc->bDescriptorType, 2521 vcdesc->bDescriptorSubtype); 2522 break; 2523 } 2524 break; 2525 default: 2526 printf("unknown: len=%d type=0x%02x", 2527 desc->bLength, desc->bDescriptorType); 2528 break; 2529 } 2530 } 2531 2532 static void 2533 print_vs_descriptor(const usb_descriptor_t *desc) 2534 { 2535 const uvideo_descriptor_t * vsdesc; 2536 printf("VS "); 2537 2538 switch (desc->bDescriptorType) { 2539 case UDESC_ENDPOINT: 2540 print_endpoint_descriptor( 2541 (const usb_endpoint_descriptor_t *)desc); 2542 break; 2543 case UDESC_CS_INTERFACE: 2544 vsdesc = (const uvideo_descriptor_t *)desc; 2545 switch (vsdesc->bDescriptorSubtype) { 2546 case UDESC_VS_INPUT_HEADER: 2547 print_vs_input_header_descriptor( 2548 (const uvideo_vs_input_header_descriptor_t *) 2549 vsdesc); 2550 break; 2551 case UDESC_VS_OUTPUT_HEADER: 2552 print_vs_output_header_descriptor( 2553 (const uvideo_vs_output_header_descriptor_t *) 2554 vsdesc); 2555 break; 2556 case UDESC_VS_FORMAT_UNCOMPRESSED: 2557 print_vs_format_uncompressed_descriptor( 2558 (const uvideo_vs_format_uncompressed_descriptor_t *) 2559 vsdesc); 2560 break; 2561 case UDESC_VS_FRAME_UNCOMPRESSED: 2562 print_vs_frame_uncompressed_descriptor( 2563 (const uvideo_vs_frame_uncompressed_descriptor_t *) 2564 vsdesc); 2565 break; 2566 case UDESC_VS_FORMAT_MJPEG: 2567 print_vs_format_mjpeg_descriptor( 2568 (const uvideo_vs_format_mjpeg_descriptor_t *) 2569 vsdesc); 2570 break; 2571 case UDESC_VS_FRAME_MJPEG: 2572 print_vs_frame_mjpeg_descriptor( 2573 (const uvideo_vs_frame_mjpeg_descriptor_t *) 2574 vsdesc); 2575 break; 2576 case UDESC_VS_FORMAT_DV: 2577 print_vs_format_dv_descriptor( 2578 (const uvideo_vs_format_dv_descriptor_t *) 2579 vsdesc); 2580 break; 2581 default: 2582 printf("unknown cs interface: len=%d type=0x%02x " 2583 "subtype=0x%02x", 2584 vsdesc->bLength, vsdesc->bDescriptorType, 2585 vsdesc->bDescriptorSubtype); 2586 } 2587 break; 2588 default: 2589 printf("unknown: len=%d type=0x%02x", 2590 desc->bLength, desc->bDescriptorType); 2591 break; 2592 } 2593 } 2594 2595 static void 2596 print_interface_descriptor(const usb_interface_descriptor_t *id) 2597 { 2598 printf("Interface: Len=%d Type=0x%02x " 2599 "bInterfaceNumber=0x%02x " 2600 "bAlternateSetting=0x%02x bNumEndpoints=0x%02x " 2601 "bInterfaceClass=0x%02x bInterfaceSubClass=0x%02x " 2602 "bInterfaceProtocol=0x%02x iInterface=0x%02x", 2603 id->bLength, 2604 id->bDescriptorType, 2605 id->bInterfaceNumber, 2606 id->bAlternateSetting, 2607 id->bNumEndpoints, 2608 id->bInterfaceClass, 2609 id->bInterfaceSubClass, 2610 id->bInterfaceProtocol, 2611 id->iInterface); 2612 } 2613 2614 static void 2615 print_endpoint_descriptor(const usb_endpoint_descriptor_t *desc) 2616 { 2617 printf("Endpoint: Len=%d Type=0x%02x " 2618 "bEndpointAddress=0x%02x ", 2619 desc->bLength, 2620 desc->bDescriptorType, 2621 desc->bEndpointAddress); 2622 printf("bmAttributes="); 2623 print_bitmap(&desc->bmAttributes, 1); 2624 printf(" wMaxPacketSize=%d bInterval=%d", 2625 UGETW(desc->wMaxPacketSize), 2626 desc->bInterval); 2627 } 2628 2629 static void 2630 print_vc_header_descriptor( 2631 const uvideo_vc_header_descriptor_t *desc) 2632 { 2633 printf("Interface Header: " 2634 "Len=%d Type=0x%02x Subtype=0x%02x " 2635 "bcdUVC=%d wTotalLength=%d " 2636 "dwClockFrequency=%u bInCollection=%d", 2637 desc->bLength, 2638 desc->bDescriptorType, 2639 desc->bDescriptorSubtype, 2640 UGETW(desc->bcdUVC), 2641 UGETW(desc->wTotalLength), 2642 UGETDW(desc->dwClockFrequency), 2643 desc->bInCollection); 2644 } 2645 2646 static void 2647 print_input_terminal_descriptor( 2648 const uvideo_input_terminal_descriptor_t *desc) 2649 { 2650 printf("Input Terminal: " 2651 "Len=%d Type=0x%02x Subtype=0x%02x " 2652 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2653 "iTerminal=%d", 2654 desc->bLength, 2655 desc->bDescriptorType, 2656 desc->bDescriptorSubtype, 2657 desc->bTerminalID, 2658 UGETW(desc->wTerminalType), 2659 desc->bAssocTerminal, 2660 desc->iTerminal); 2661 } 2662 2663 static void 2664 print_output_terminal_descriptor( 2665 const uvideo_output_terminal_descriptor_t *desc) 2666 { 2667 printf("Output Terminal: " 2668 "Len=%d Type=0x%02x Subtype=0x%02x " 2669 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2670 "bSourceID=%d iTerminal=%d", 2671 desc->bLength, 2672 desc->bDescriptorType, 2673 desc->bDescriptorSubtype, 2674 desc->bTerminalID, 2675 UGETW(desc->wTerminalType), 2676 desc->bAssocTerminal, 2677 desc->bSourceID, 2678 desc->iTerminal); 2679 } 2680 2681 static void 2682 print_camera_terminal_descriptor( 2683 const uvideo_camera_terminal_descriptor_t *desc) 2684 { 2685 printf("Camera Terminal: " 2686 "Len=%d Type=0x%02x Subtype=0x%02x " 2687 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2688 "iTerminal=%d " 2689 "wObjectiveFocalLengthMin/Max=%d/%d " 2690 "wOcularFocalLength=%d " 2691 "bControlSize=%d ", 2692 desc->bLength, 2693 desc->bDescriptorType, 2694 desc->bDescriptorSubtype, 2695 desc->bTerminalID, 2696 UGETW(desc->wTerminalType), 2697 desc->bAssocTerminal, 2698 desc->iTerminal, 2699 UGETW(desc->wObjectiveFocalLengthMin), 2700 UGETW(desc->wObjectiveFocalLengthMax), 2701 UGETW(desc->wOcularFocalLength), 2702 desc->bControlSize); 2703 printf("bmControls="); 2704 print_bitmap(desc->bmControls, desc->bControlSize); 2705 } 2706 2707 static void 2708 print_selector_unit_descriptor( 2709 const uvideo_selector_unit_descriptor_t *desc) 2710 { 2711 int i; 2712 const uByte *b; 2713 printf("Selector Unit: " 2714 "Len=%d Type=0x%02x Subtype=0x%02x " 2715 "bUnitID=%d bNrInPins=%d ", 2716 desc->bLength, 2717 desc->bDescriptorType, 2718 desc->bDescriptorSubtype, 2719 desc->bUnitID, 2720 desc->bNrInPins); 2721 printf("baSourceIDs="); 2722 b = &desc->baSourceID[0]; 2723 for (i = 0; i < desc->bNrInPins; ++i) 2724 printf("%d ", *b++); 2725 printf("iSelector=%d", *b); 2726 } 2727 2728 static void 2729 print_processing_unit_descriptor( 2730 const uvideo_processing_unit_descriptor_t *desc) 2731 { 2732 const uByte *b; 2733 2734 printf("Processing Unit: " 2735 "Len=%d Type=0x%02x Subtype=0x%02x " 2736 "bUnitID=%d bSourceID=%d wMaxMultiplier=%d bControlSize=%d ", 2737 desc->bLength, 2738 desc->bDescriptorType, 2739 desc->bDescriptorSubtype, 2740 desc->bUnitID, 2741 desc->bSourceID, 2742 UGETW(desc->wMaxMultiplier), 2743 desc->bControlSize); 2744 printf("bmControls="); 2745 print_bitmap(desc->bmControls, desc->bControlSize); 2746 b = &desc->bControlSize + desc->bControlSize + 1; 2747 printf(" iProcessing=%d bmVideoStandards=", *b); 2748 b += 1; 2749 print_bitmap(b, 1); 2750 } 2751 2752 static void 2753 print_extension_unit_descriptor( 2754 const uvideo_extension_unit_descriptor_t *desc) 2755 { 2756 const uByte * byte; 2757 uByte controlbytes; 2758 int i; 2759 2760 printf("Extension Unit: " 2761 "Len=%d Type=0x%02x Subtype=0x%02x " 2762 "bUnitID=%d ", 2763 desc->bLength, 2764 desc->bDescriptorType, 2765 desc->bDescriptorSubtype, 2766 desc->bUnitID); 2767 2768 printf("guidExtensionCode="); 2769 usb_guid_print(&desc->guidExtensionCode); 2770 printf(" "); 2771 2772 printf("bNumControls=%d bNrInPins=%d ", 2773 desc->bNumControls, 2774 desc->bNrInPins); 2775 2776 printf("baSourceIDs="); 2777 byte = &desc->baSourceID[0]; 2778 for (i = 0; i < desc->bNrInPins; ++i) 2779 printf("%d ", *byte++); 2780 2781 controlbytes = *byte++; 2782 printf("bControlSize=%d ", controlbytes); 2783 printf("bmControls="); 2784 print_bitmap(byte, controlbytes); 2785 2786 byte += controlbytes; 2787 printf(" iExtension=%d", *byte); 2788 } 2789 2790 static void 2791 print_interrupt_endpoint_descriptor( 2792 const uvideo_vc_interrupt_endpoint_descriptor_t *desc) 2793 { 2794 printf("Interrupt Endpoint: " 2795 "Len=%d Type=0x%02x Subtype=0x%02x " 2796 "wMaxTransferSize=%d ", 2797 desc->bLength, 2798 desc->bDescriptorType, 2799 desc->bDescriptorSubtype, 2800 UGETW(desc->wMaxTransferSize)); 2801 } 2802 2803 2804 static void 2805 print_vs_output_header_descriptor( 2806 const uvideo_vs_output_header_descriptor_t *desc) 2807 { 2808 printf("Interface Output Header: " 2809 "Len=%d Type=0x%02x Subtype=0x%02x " 2810 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2811 "bTerminalLink=%d bControlSize=%d", 2812 desc->bLength, 2813 desc->bDescriptorType, 2814 desc->bDescriptorSubtype, 2815 desc->bNumFormats, 2816 UGETW(desc->wTotalLength), 2817 desc->bEndpointAddress, 2818 desc->bTerminalLink, 2819 desc->bControlSize); 2820 } 2821 2822 static void 2823 print_vs_input_header_descriptor( 2824 const uvideo_vs_input_header_descriptor_t *desc) 2825 { 2826 printf("Interface Input Header: " 2827 "Len=%d Type=0x%02x Subtype=0x%02x " 2828 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2829 "bmInfo=%x bTerminalLink=%d bStillCaptureMethod=%d " 2830 "bTriggerSupport=%d bTriggerUsage=%d bControlSize=%d ", 2831 desc->bLength, 2832 desc->bDescriptorType, 2833 desc->bDescriptorSubtype, 2834 desc->bNumFormats, 2835 UGETW(desc->wTotalLength), 2836 desc->bEndpointAddress, 2837 desc->bmInfo, 2838 desc->bTerminalLink, 2839 desc->bStillCaptureMethod, 2840 desc->bTriggerSupport, 2841 desc->bTriggerUsage, 2842 desc->bControlSize); 2843 print_bitmap(desc->bmaControls, desc->bControlSize); 2844 } 2845 2846 static void 2847 print_vs_format_uncompressed_descriptor( 2848 const uvideo_vs_format_uncompressed_descriptor_t *desc) 2849 { 2850 printf("Format Uncompressed: " 2851 "Len=%d Type=0x%02x Subtype=0x%02x " 2852 "bFormatIndex=%d bNumFrameDescriptors=%d ", 2853 desc->bLength, 2854 desc->bDescriptorType, 2855 desc->bDescriptorSubtype, 2856 desc->bFormatIndex, 2857 desc->bNumFrameDescriptors); 2858 usb_guid_print(&desc->guidFormat); 2859 printf(" bBitsPerPixel=%d bDefaultFrameIndex=%d " 2860 "bAspectRatioX=%d bAspectRatioY=%d " 2861 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2862 desc->bBitsPerPixel, 2863 desc->bDefaultFrameIndex, 2864 desc->bAspectRatioX, 2865 desc->bAspectRatioY, 2866 desc->bmInterlaceFlags, 2867 desc->bCopyProtect); 2868 } 2869 2870 static void 2871 print_vs_frame_uncompressed_descriptor( 2872 const uvideo_vs_frame_uncompressed_descriptor_t *desc) 2873 { 2874 printf("Frame Uncompressed: " 2875 "Len=%d Type=0x%02x Subtype=0x%02x " 2876 "bFrameIndex=%d bmCapabilities=0x%02x " 2877 "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " 2878 "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " 2879 "bFrameIntervalType=%d", 2880 desc->bLength, 2881 desc->bDescriptorType, 2882 desc->bDescriptorSubtype, 2883 desc->bFrameIndex, 2884 desc->bmCapabilities, 2885 UGETW(desc->wWidth), 2886 UGETW(desc->wHeight), 2887 UGETDW(desc->dwMinBitRate), 2888 UGETDW(desc->dwMaxBitRate), 2889 UGETDW(desc->dwMaxVideoFrameBufferSize), 2890 UGETDW(desc->dwDefaultFrameInterval), 2891 desc->bFrameIntervalType); 2892 } 2893 2894 static void 2895 print_vs_format_mjpeg_descriptor( 2896 const uvideo_vs_format_mjpeg_descriptor_t *desc) 2897 { 2898 printf("MJPEG format: " 2899 "Len=%d Type=0x%02x Subtype=0x%02x " 2900 "bFormatIndex=%d bNumFrameDescriptors=%d bmFlags=0x%02x " 2901 "bDefaultFrameIndex=%d bAspectRatioX=%d bAspectRatioY=%d " 2902 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2903 desc->bLength, 2904 desc->bDescriptorType, 2905 desc->bDescriptorSubtype, 2906 desc->bFormatIndex, 2907 desc->bNumFrameDescriptors, 2908 desc->bmFlags, 2909 desc->bDefaultFrameIndex, 2910 desc->bAspectRatioX, 2911 desc->bAspectRatioY, 2912 desc->bmInterlaceFlags, 2913 desc->bCopyProtect); 2914 } 2915 2916 static void 2917 print_vs_frame_mjpeg_descriptor( 2918 const uvideo_vs_frame_mjpeg_descriptor_t *desc) 2919 { 2920 printf("MJPEG frame: " 2921 "Len=%d Type=0x%02x Subtype=0x%02x " 2922 "bFrameIndex=%d bmCapabilities=0x%02x " 2923 "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " 2924 "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " 2925 "bFrameIntervalType=%d", 2926 desc->bLength, 2927 desc->bDescriptorType, 2928 desc->bDescriptorSubtype, 2929 desc->bFrameIndex, 2930 desc->bmCapabilities, 2931 UGETW(desc->wWidth), 2932 UGETW(desc->wHeight), 2933 UGETDW(desc->dwMinBitRate), 2934 UGETDW(desc->dwMaxBitRate), 2935 UGETDW(desc->dwMaxVideoFrameBufferSize), 2936 UGETDW(desc->dwDefaultFrameInterval), 2937 desc->bFrameIntervalType); 2938 } 2939 2940 static void 2941 print_vs_format_dv_descriptor( 2942 const uvideo_vs_format_dv_descriptor_t *desc) 2943 { 2944 printf("MJPEG format: " 2945 "Len=%d Type=0x%02x Subtype=0x%02x " 2946 "bFormatIndex=%d dwMaxVideoFrameBufferSize=%u " 2947 "bFormatType/Rate=%d bFormatType/Format=%d", 2948 desc->bLength, 2949 desc->bDescriptorType, 2950 desc->bDescriptorSubtype, 2951 desc->bFormatIndex, 2952 UGETDW(desc->dwMaxVideoFrameBufferSize), 2953 UVIDEO_GET_DV_FREQ(desc->bFormatType), 2954 UVIDEO_GET_DV_FORMAT(desc->bFormatType)); 2955 } 2956 2957 #endif /* !UVIDEO_DEBUG */ 2958 2959 static const usb_descriptor_t * 2960 usb_desc_iter_peek_next(usbd_desc_iter_t *iter) 2961 { 2962 const usb_descriptor_t *desc; 2963 2964 if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) { 2965 if (iter->cur != iter->end) 2966 printf("usb_desc_iter_peek_next: bad descriptor\n"); 2967 return NULL; 2968 } 2969 desc = (const usb_descriptor_t *)iter->cur; 2970 if (desc->bLength == 0) { 2971 printf("usb_desc_iter_peek_next: descriptor length = 0\n"); 2972 return NULL; 2973 } 2974 if (iter->cur + desc->bLength > iter->end) { 2975 printf("usb_desc_iter_peek_next: descriptor length too large\n"); 2976 return NULL; 2977 } 2978 return desc; 2979 } 2980 2981 /* Return the next interface descriptor, skipping over any other 2982 * descriptors. Returns NULL at the end or on error. */ 2983 static const usb_interface_descriptor_t * 2984 usb_desc_iter_next_interface(usbd_desc_iter_t *iter) 2985 { 2986 const usb_descriptor_t *desc; 2987 2988 while ((desc = usb_desc_iter_peek_next(iter)) != NULL && 2989 desc->bDescriptorType != UDESC_INTERFACE) 2990 { 2991 usb_desc_iter_next(iter); 2992 } 2993 2994 return (const usb_interface_descriptor_t *)usb_desc_iter_next(iter); 2995 } 2996 2997 /* Returns the next non-interface descriptor, returning NULL when the 2998 * next descriptor would be an interface descriptor. */ 2999 static const usb_descriptor_t * 3000 usb_desc_iter_next_non_interface(usbd_desc_iter_t *iter) 3001 { 3002 const usb_descriptor_t *desc; 3003 3004 if ((desc = usb_desc_iter_peek_next(iter)) != NULL && 3005 desc->bDescriptorType != UDESC_INTERFACE) 3006 { 3007 return (usb_desc_iter_next(iter)); 3008 } else { 3009 return NULL; 3010 } 3011 } 3012 3013 #ifdef UVIDEO_DEBUG 3014 static void 3015 usb_guid_print(const usb_guid_t *guid) 3016 { 3017 printf("%04X-%02X-%02X-", 3018 UGETDW(guid->data1), 3019 UGETW(guid->data2), 3020 UGETW(guid->data3)); 3021 printf("%02X%02X-", 3022 guid->data4[0], 3023 guid->data4[1]); 3024 printf("%02X%02X%02X%02X%02X%02X", 3025 guid->data4[2], 3026 guid->data4[3], 3027 guid->data4[4], 3028 guid->data4[5], 3029 guid->data4[6], 3030 guid->data4[7]); 3031 } 3032 #endif /* !UVIDEO_DEBUG */ 3033 3034 /* Returns less than zero, zero, or greater than zero if uguid is less 3035 * than, equal to, or greater than guid. */ 3036 static int 3037 usb_guid_cmp(const usb_guid_t *uguid, const guid_t *guid) 3038 { 3039 if (guid->data1 > UGETDW(uguid->data1)) 3040 return 1; 3041 else if (guid->data1 < UGETDW(uguid->data1)) 3042 return -1; 3043 3044 if (guid->data2 > UGETW(uguid->data2)) 3045 return 1; 3046 else if (guid->data2 < UGETW(uguid->data2)) 3047 return -1; 3048 3049 if (guid->data3 > UGETW(uguid->data3)) 3050 return 1; 3051 else if (guid->data3 < UGETW(uguid->data3)) 3052 return -1; 3053 3054 return (memcmp(guid->data4, uguid->data4, 8)); 3055 } 3056
Indexes created Fri Sep 26 08:10:20 GMT 2025