uvideo.c revision 1.21.8.2
1 /* $NetBSD: uvideo.c,v 1.21.8.2 2009/03/03 18:31:53 skrll 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 1.21.8.2 2009/03/03 18:31:53 skrll 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_frame_interval; 237 SLIST_ENTRY(uvideo_stream) entries; 238 }; 239 SLIST_HEAD(uvideo_stream_list, uvideo_stream); 240 241 struct uvideo_softc { 242 USBBASEDEVICE sc_dev; /* base device */ 243 usbd_device_handle sc_udev; /* device */ 244 usbd_interface_handle sc_iface; /* interface handle */ 245 int sc_ifaceno; /* interface number */ 246 char *sc_devname; 247 248 device_ptr_t sc_videodev; 249 250 int sc_dying; 251 uvideo_state sc_state; 252 253 uint8_t sc_nunits; 254 struct uvideo_unit **sc_unit; 255 256 struct uvideo_stream *sc_stream_in; 257 258 struct uvideo_stream_list sc_stream_list; 259 }; 260 261 int uvideo_match(device_t, cfdata_t, void *); 262 void uvideo_attach(device_t, device_t, void *); 263 int uvideo_detach(device_t, int); 264 void uvideo_childdet(device_t, device_t); 265 int uvideo_activate(device_t, enum devact); 266 267 static int uvideo_open(void *, int); 268 static void uvideo_close(void *); 269 static const char * uvideo_get_devname(void *); 270 271 static int uvideo_enum_format(void *, uint32_t, struct video_format *); 272 static int uvideo_get_format(void *, struct video_format *); 273 static int uvideo_set_format(void *, struct video_format *); 274 static int uvideo_try_format(void *, struct video_format *); 275 static int uvideo_start_transfer(void *); 276 static int uvideo_stop_transfer(void *); 277 278 static int uvideo_get_control_group(void *, 279 struct video_control_group *); 280 static int uvideo_set_control_group(void *, 281 const struct video_control_group *); 282 283 static usbd_status uvideo_init_control( 284 struct uvideo_softc *, 285 const usb_interface_descriptor_t *, 286 usbd_desc_iter_t *); 287 static usbd_status uvideo_init_collection( 288 struct uvideo_softc *, 289 const usb_interface_descriptor_t *, 290 usbd_desc_iter_t *); 291 292 /* Functions for unit & terminal descriptors */ 293 static struct uvideo_unit * uvideo_unit_alloc(const uvideo_descriptor_t *); 294 static usbd_status uvideo_unit_init(struct uvideo_unit *, 295 const uvideo_descriptor_t *); 296 static void uvideo_unit_free(struct uvideo_unit *); 297 static usbd_status uvideo_unit_alloc_controls(struct uvideo_unit *, 298 uint8_t, 299 const uint8_t *); 300 static void uvideo_unit_free_controls(struct uvideo_unit *); 301 static usbd_status uvideo_unit_alloc_sources(struct uvideo_unit *, 302 uint8_t, 303 const uint8_t *); 304 static void uvideo_unit_free_sources(struct uvideo_unit *); 305 306 307 308 309 /* Functions for uvideo_stream, primary unit associated with a video 310 * driver or device file. */ 311 static struct uvideo_stream * uvideo_find_stream(struct uvideo_softc *, 312 uint8_t); 313 #if 0 314 static struct uvideo_format * uvideo_stream_find_format( 315 struct uvideo_stream *, 316 uint8_t, uint8_t); 317 #endif 318 static struct uvideo_format * uvideo_stream_guess_format( 319 struct uvideo_stream *, 320 enum video_pixel_format, uint32_t, uint32_t); 321 static struct uvideo_stream * uvideo_stream_alloc(void); 322 static usbd_status uvideo_stream_init( 323 struct uvideo_stream *stream, 324 struct uvideo_softc *sc, 325 const usb_interface_descriptor_t *ifdesc, 326 uint8_t idx); 327 static usbd_status uvideo_stream_init_desc( 328 struct uvideo_stream *, 329 const usb_interface_descriptor_t *ifdesc, 330 usbd_desc_iter_t *iter); 331 static usbd_status uvideo_stream_init_frame_based_format( 332 struct uvideo_stream *, 333 const uvideo_descriptor_t *, 334 usbd_desc_iter_t *); 335 static void uvideo_stream_free(struct uvideo_stream *); 336 337 static int uvideo_stream_start_xfer(struct uvideo_stream *); 338 static int uvideo_stream_stop_xfer(struct uvideo_stream *); 339 static usbd_status uvideo_stream_recv_process(struct uvideo_stream *, 340 uint8_t *, uint32_t); 341 static usbd_status uvideo_stream_recv_isoc_start(struct uvideo_stream *); 342 static usbd_status uvideo_stream_recv_isoc_start1(struct uvideo_isoc *); 343 static void uvideo_stream_recv_isoc_complete(usbd_xfer_handle, 344 usbd_private_handle, 345 usbd_status); 346 static void uvideo_stream_recv_bulk_transfer(void *); 347 348 /* format probe and commit */ 349 #define uvideo_stream_probe(vs, act, data) \ 350 (uvideo_stream_probe_and_commit((vs), (act), \ 351 UVIDEO_VS_PROBE_CONTROL, (data))) 352 #define uvideo_stream_commit(vs, act, data) \ 353 (uvideo_stream_probe_and_commit((vs), (act), \ 354 UVIDEO_VS_COMMIT_CONTROL, (data))) 355 static usbd_status uvideo_stream_probe_and_commit(struct uvideo_stream *, 356 uint8_t, uint8_t, 357 void *); 358 static void uvideo_init_probe_data(uvideo_probe_and_commit_data_t *); 359 360 361 static const usb_descriptor_t * usb_desc_iter_peek_next(usbd_desc_iter_t *); 362 static const usb_interface_descriptor_t * usb_desc_iter_next_interface( 363 usbd_desc_iter_t *); 364 static const usb_descriptor_t * usb_desc_iter_next_non_interface( 365 usbd_desc_iter_t *); 366 367 static int usb_guid_cmp(const usb_guid_t *, const guid_t *); 368 369 370 CFATTACH_DECL2_NEW(uvideo, sizeof(struct uvideo_softc), 371 uvideo_match, uvideo_attach, uvideo_detach, uvideo_activate, NULL, 372 uvideo_childdet); 373 374 extern struct cfdriver uvideo_cd; 375 376 377 static const struct video_hw_if uvideo_hw_if = { 378 .open = uvideo_open, 379 .close = uvideo_close, 380 .get_devname = uvideo_get_devname, 381 .enum_format = uvideo_enum_format, 382 .get_format = uvideo_get_format, 383 .set_format = uvideo_set_format, 384 .try_format = uvideo_try_format, 385 .start_transfer = uvideo_start_transfer, 386 .stop_transfer = uvideo_stop_transfer, 387 .control_iter_init = NULL, 388 .control_iter_next = NULL, 389 .get_control_desc_group = NULL, 390 .get_control_group = uvideo_get_control_group, 391 .set_control_group = uvideo_set_control_group, 392 }; 393 394 #ifdef UVIDEO_DEBUG 395 /* Some functions to print out descriptors. Mostly useless other than 396 * debugging/exploration purposes. */ 397 static void usb_guid_print(const usb_guid_t *); 398 static void print_descriptor(const usb_descriptor_t *); 399 static void print_interface_descriptor(const usb_interface_descriptor_t *); 400 static void print_endpoint_descriptor(const usb_endpoint_descriptor_t *); 401 402 static void print_vc_descriptor(const usb_descriptor_t *); 403 static void print_vs_descriptor(const usb_descriptor_t *); 404 405 static void print_vc_header_descriptor( 406 const uvideo_vc_header_descriptor_t *); 407 static void print_input_terminal_descriptor( 408 const uvideo_input_terminal_descriptor_t *); 409 static void print_output_terminal_descriptor( 410 const uvideo_output_terminal_descriptor_t *); 411 static void print_camera_terminal_descriptor( 412 const uvideo_camera_terminal_descriptor_t *); 413 static void print_selector_unit_descriptor( 414 const uvideo_selector_unit_descriptor_t *); 415 static void print_processing_unit_descriptor( 416 const uvideo_processing_unit_descriptor_t *); 417 static void print_extension_unit_descriptor( 418 const uvideo_extension_unit_descriptor_t *); 419 static void print_interrupt_endpoint_descriptor( 420 const uvideo_vc_interrupt_endpoint_descriptor_t *); 421 422 static void print_vs_input_header_descriptor( 423 const uvideo_vs_input_header_descriptor_t *); 424 static void print_vs_output_header_descriptor( 425 const uvideo_vs_output_header_descriptor_t *); 426 427 static void print_vs_format_uncompressed_descriptor( 428 const uvideo_vs_format_uncompressed_descriptor_t *); 429 static void print_vs_frame_uncompressed_descriptor( 430 const uvideo_vs_frame_uncompressed_descriptor_t *); 431 static void print_vs_format_mjpeg_descriptor( 432 const uvideo_vs_format_mjpeg_descriptor_t *); 433 static void print_vs_frame_mjpeg_descriptor( 434 const uvideo_vs_frame_mjpeg_descriptor_t *); 435 static void print_vs_format_dv_descriptor( 436 const uvideo_vs_format_dv_descriptor_t *); 437 #endif /* !UVIDEO_DEBUG */ 438 439 #define GET(type, descp, field) (((const type *)(descp))->field) 440 #define GETP(type, descp, field) (&(((const type *)(descp))->field)) 441 442 /* Given a format descriptor and frame descriptor, copy values common 443 * to all formats into a struct uvideo_format. */ 444 #define UVIDEO_FORMAT_INIT_FRAME_BASED(format_type, format_desc, \ 445 frame_type, frame_desc, \ 446 format) \ 447 do { \ 448 UVIDEO_FORMAT_SET_FORMAT_INDEX( \ 449 format, \ 450 GET(format_type, format_desc, bFormatIndex)); \ 451 UVIDEO_FORMAT_SET_FRAME_INDEX( \ 452 format, \ 453 GET(frame_type, frame_desc, bFrameIndex)); \ 454 format->format.width = \ 455 UGETW(GET(frame_type, frame_desc, wWidth)); \ 456 format->format.height = \ 457 UGETW(GET(frame_type, frame_desc, wHeight)); \ 458 format->format.aspect_x = \ 459 GET(format_type, format_desc, bAspectRatioX); \ 460 format->format.aspect_y = \ 461 GET(format_type, format_desc, bAspectRatioY); \ 462 } while (0) 463 464 465 USB_MATCH(uvideo) 466 { 467 USB_IFMATCH_START(uvideo, uaa); 468 469 /* TODO: May need to change in the future to work with 470 * Interface Association Descriptor. */ 471 472 /* Trigger on the Video Control Interface which must be present */ 473 if (uaa->class == UICLASS_VIDEO && 474 uaa->subclass == UISUBCLASS_VIDEOCONTROL) 475 return UMATCH_IFACECLASS_IFACESUBCLASS; 476 477 return UMATCH_NONE; 478 } 479 480 USB_ATTACH(uvideo) 481 { 482 USB_IFATTACH_START(uvideo, sc, uaa); 483 usbd_desc_iter_t iter; 484 const usb_interface_descriptor_t *ifdesc; 485 struct uvideo_stream *vs; 486 usbd_status err; 487 uint8_t ifaceidx; 488 489 sc->sc_dev = self; 490 491 sc->sc_devname = usbd_devinfo_alloc(uaa->device, 0); 492 493 aprint_naive("\n"); 494 aprint_normal(": %s\n", sc->sc_devname); 495 496 sc->sc_udev = uaa->device; 497 sc->sc_iface = uaa->iface; 498 sc->sc_ifaceno = uaa->ifaceno; 499 sc->sc_dying = 0; 500 sc->sc_state = UVIDEO_STATE_CLOSED; 501 SLIST_INIT(&sc->sc_stream_list); 502 503 #ifdef UVIDEO_DEBUG 504 /* Debugging dump of descriptors. TODO: move this to userspace 505 * via a custom IOCTL or something. */ 506 const usb_descriptor_t *desc; 507 usb_desc_iter_init(sc->sc_udev, &iter); 508 while ((desc = usb_desc_iter_next(&iter)) != NULL) { 509 /* print out all descriptors */ 510 printf("uvideo_attach: "); 511 print_descriptor(desc); 512 } 513 #endif /* !UVIDEO_DEBUG */ 514 515 /* iterate through interface descriptors and initialize softc */ 516 usb_desc_iter_init(sc->sc_udev, &iter); 517 for (ifaceidx = 0; 518 (ifdesc = usb_desc_iter_next_interface(&iter)) != NULL; 519 ++ifaceidx) 520 { 521 if (ifdesc->bInterfaceClass != UICLASS_VIDEO) { 522 DPRINTFN(50, ("uvideo_attach: " 523 "ignoring non-uvc interface: " 524 "len=%d type=0x%02x " 525 "class=0x%02x subclass=0x%02x\n", 526 ifdesc->bLength, 527 ifdesc->bDescriptorType, 528 ifdesc->bInterfaceClass, 529 ifdesc->bInterfaceSubClass)); 530 continue; 531 } 532 533 switch (ifdesc->bInterfaceSubClass) { 534 case UISUBCLASS_VIDEOCONTROL: 535 err = uvideo_init_control(sc, ifdesc, &iter); 536 if (err != USBD_NORMAL_COMPLETION) { 537 DPRINTF(("uvideo_attach: error with interface " 538 "%d, VideoControl, " 539 "descriptor len=%d type=0x%02x: " 540 "%s (%d)\n", 541 ifdesc->bInterfaceNumber, 542 ifdesc->bLength, 543 ifdesc->bDescriptorType, 544 usbd_errstr(err), err)); 545 } 546 break; 547 case UISUBCLASS_VIDEOSTREAMING: 548 vs = uvideo_find_stream(sc, ifdesc->bInterfaceNumber); 549 if (vs == NULL) { 550 vs = uvideo_stream_alloc(); 551 if (vs == NULL) { 552 DPRINTF(("uvideo_attach: " 553 "failed to alloc stream\n")); 554 err = USBD_NOMEM; 555 goto bad; 556 } 557 err = uvideo_stream_init(vs, sc, ifdesc, 558 ifaceidx); 559 if (err != USBD_NORMAL_COMPLETION) { 560 DPRINTF(("uvideo_attach: " 561 "error initializing stream: " 562 "%s (%d)\n", 563 usbd_errstr(err), err)); 564 goto bad; 565 } 566 } 567 err = uvideo_stream_init_desc(vs, ifdesc, &iter); 568 if (err != USBD_NORMAL_COMPLETION) { 569 DPRINTF(("uvideo_attach: " 570 "error initializing stream descriptor: " 571 "%s (%d)\n", 572 usbd_errstr(err), err)); 573 goto bad; 574 } 575 /* TODO: for now, set (each) stream to stream_in. */ 576 sc->sc_stream_in = vs; 577 break; 578 case UISUBCLASS_VIDEOCOLLECTION: 579 err = uvideo_init_collection(sc, ifdesc, &iter); 580 if (err != USBD_NORMAL_COMPLETION) { 581 DPRINTF(("uvideo_attach: error with interface " 582 "%d, VideoCollection, " 583 "descriptor len=%d type=0x%02x: " 584 "%s (%d)\n", 585 ifdesc->bInterfaceNumber, 586 ifdesc->bLength, 587 ifdesc->bDescriptorType, 588 usbd_errstr(err), err)); 589 goto bad; 590 } 591 break; 592 default: 593 DPRINTF(("uvideo_attach: unknown UICLASS_VIDEO " 594 "subclass=0x%02x\n", 595 ifdesc->bInterfaceSubClass)); 596 break; 597 } 598 599 } 600 601 602 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 603 USBDEV(sc->sc_dev)); 604 605 if (!pmf_device_register(self, NULL, NULL)) 606 aprint_error_dev(self, "couldn't establish power handler\n"); 607 608 sc->sc_videodev = video_attach_mi(&uvideo_hw_if, sc->sc_dev); 609 DPRINTF(("uvideo_attach: attached video driver at %p\n", 610 sc->sc_videodev)); 611 612 USB_ATTACH_SUCCESS_RETURN; 613 614 bad: 615 if (err != USBD_NORMAL_COMPLETION) { 616 DPRINTF(("uvideo_attach: error: %s (%d)\n", 617 usbd_errstr(err), err)); 618 } 619 USB_ATTACH_ERROR_RETURN; 620 } 621 622 623 int 624 uvideo_activate(device_t self, enum devact act) 625 { 626 struct uvideo_softc *sc; 627 int rv; 628 629 sc = device_private(self); 630 rv = 0; 631 switch (act) { 632 case DVACT_ACTIVATE: 633 return EOPNOTSUPP; 634 635 case DVACT_DEACTIVATE: 636 DPRINTF(("uvideo_activate: deactivating\n")); 637 if (sc->sc_videodev != NULL) 638 rv = config_deactivate(sc->sc_videodev); 639 sc->sc_dying = 1; 640 break; 641 } 642 return rv; 643 } 644 645 646 /* Detach child (video interface) */ 647 void 648 uvideo_childdet(device_t self, device_t child) 649 { 650 struct uvideo_softc *sc = device_private(self); 651 652 KASSERT(sc->sc_videodev == child); 653 sc->sc_videodev = NULL; 654 } 655 656 657 int 658 uvideo_detach(device_t self, int flags) 659 { 660 struct uvideo_softc *sc; 661 struct uvideo_stream *vs; 662 int rv; 663 664 sc = device_private(self); 665 rv = 0; 666 667 sc->sc_dying = 1; 668 669 pmf_device_deregister(self); 670 671 usbd_devinfo_free(sc->sc_devname); 672 673 /* TODO: close the device if it is currently opened? Or will 674 * close be called automatically? */ 675 676 while (!SLIST_EMPTY(&sc->sc_stream_list)) { 677 vs = SLIST_FIRST(&sc->sc_stream_list); 678 SLIST_REMOVE_HEAD(&sc->sc_stream_list, entries); 679 uvideo_stream_free(vs); 680 } 681 682 /* Wait for outstanding request to complete. TODO: what is 683 * appropriate here? */ 684 usbd_delay_ms(sc->sc_udev, 1000); 685 686 DPRINTFN(15, ("uvideo: detaching from %s\n", 687 USBDEVNAME(sc->sc_dev))); 688 689 if (sc->sc_videodev != NULL) 690 rv = config_detach(sc->sc_videodev, flags); 691 692 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 693 USBDEV(sc->sc_dev)); 694 695 return rv; 696 } 697 698 /* Search the stream list for a stream matching the interface number. 699 * This is an O(n) search, but most devices should have only one or at 700 * most two streams. */ 701 static struct uvideo_stream * 702 uvideo_find_stream(struct uvideo_softc *sc, uint8_t ifaceno) 703 { 704 struct uvideo_stream *vs; 705 706 SLIST_FOREACH(vs, &sc->sc_stream_list, entries) { 707 if (vs->vs_ifaceno == ifaceno) 708 return vs; 709 } 710 711 return NULL; 712 } 713 714 /* Search the format list for the given format and frame index. This 715 * might be improved through indexing, but the format and frame count 716 * is unknown ahead of time (only after iterating through the 717 * usb device descriptors). */ 718 #if 0 719 static struct uvideo_format * 720 uvideo_stream_find_format(struct uvideo_stream *vs, 721 uint8_t format_index, uint8_t frame_index) 722 { 723 struct uvideo_format *format; 724 725 SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { 726 if (UVIDEO_FORMAT_GET_FORMAT_INDEX(format) == format_index && 727 UVIDEO_FORMAT_GET_FRAME_INDEX(format) == frame_index) 728 return format; 729 } 730 return NULL; 731 } 732 #endif 733 734 static struct uvideo_format * 735 uvideo_stream_guess_format(struct uvideo_stream *vs, 736 enum video_pixel_format pixel_format, 737 uint32_t width, uint32_t height) 738 { 739 struct uvideo_format *format, *gformat = NULL; 740 741 SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { 742 if (format->format.pixel_format != pixel_format) 743 continue; 744 if (format->format.width <= width && 745 format->format.height <= height) { 746 if (gformat == NULL || 747 (gformat->format.width < format->format.width && 748 gformat->format.height < format->format.height)) 749 gformat = format; 750 } 751 } 752 753 return gformat; 754 } 755 756 static struct uvideo_stream * 757 uvideo_stream_alloc(void) 758 { 759 return (kmem_alloc(sizeof(struct uvideo_stream), KM_NOSLEEP)); 760 } 761 762 763 static usbd_status 764 uvideo_init_control(struct uvideo_softc *sc, 765 const usb_interface_descriptor_t *ifdesc, 766 usbd_desc_iter_t *iter) 767 { 768 const usb_descriptor_t *desc; 769 const uvideo_descriptor_t *uvdesc; 770 usbd_desc_iter_t orig; 771 uint8_t i, j, nunits; 772 773 /* save original iterator state */ 774 memcpy(&orig, iter, sizeof(orig)); 775 776 /* count number of units and terminals */ 777 nunits = 0; 778 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 779 uvdesc = (const uvideo_descriptor_t *)desc; 780 781 if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) 782 continue; 783 if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || 784 uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) 785 continue; 786 ++nunits; 787 } 788 789 if (nunits == 0) { 790 DPRINTF(("uvideo_init_control: no units\n")); 791 return USBD_NORMAL_COMPLETION; 792 } 793 794 /* allocate space for units */ 795 sc->sc_nunits = nunits; 796 sc->sc_unit = kmem_alloc(sizeof(*sc->sc_unit) * nunits, KM_SLEEP); 797 if (sc->sc_unit == NULL) 798 goto enomem; 799 800 /* restore original iterator state */ 801 memcpy(iter, &orig, sizeof(orig)); 802 803 /* iterate again, initializing the units */ 804 i = 0; 805 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 806 uvdesc = (const uvideo_descriptor_t *)desc; 807 808 if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) 809 continue; 810 if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || 811 uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) 812 continue; 813 814 sc->sc_unit[i] = uvideo_unit_alloc(uvdesc); 815 /* TODO: free other units before returning? */ 816 if (sc->sc_unit[i] == NULL) 817 goto enomem; 818 ++i; 819 } 820 821 return USBD_NORMAL_COMPLETION; 822 823 enomem: 824 if (sc->sc_unit != NULL) { 825 for (j = 0; j < i; ++j) { 826 uvideo_unit_free(sc->sc_unit[j]); 827 sc->sc_unit[j] = NULL; 828 } 829 kmem_free(sc->sc_unit, sizeof(*sc->sc_unit) * nunits); 830 sc->sc_unit = NULL; 831 } 832 sc->sc_nunits = 0; 833 834 return USBD_NOMEM; 835 } 836 837 static usbd_status 838 uvideo_init_collection(struct uvideo_softc *sc, 839 const usb_interface_descriptor_t *ifdesc, 840 usbd_desc_iter_t *iter) 841 { 842 DPRINTF(("uvideo: ignoring Video Collection\n")); 843 return USBD_NORMAL_COMPLETION; 844 } 845 846 /* Allocates space for and initializes a uvideo unit based on the 847 * given descriptor. Returns NULL with bad descriptor or ENOMEM. */ 848 static struct uvideo_unit * 849 uvideo_unit_alloc(const uvideo_descriptor_t *desc) 850 { 851 struct uvideo_unit *vu; 852 usbd_status err; 853 854 if (desc->bDescriptorType != UDESC_CS_INTERFACE) 855 return NULL; 856 857 vu = kmem_alloc(sizeof(*vu), KM_SLEEP); 858 if (vu == NULL) 859 return NULL; 860 861 err = uvideo_unit_init(vu, desc); 862 if (err != USBD_NORMAL_COMPLETION) { 863 DPRINTF(("uvideo_unit_alloc: error initializing unit: " 864 "%s (%d)\n", usbd_errstr(err), err)); 865 kmem_free(vu, sizeof(*vu)); 866 return NULL; 867 } 868 869 return vu; 870 } 871 872 static usbd_status 873 uvideo_unit_init(struct uvideo_unit *vu, const uvideo_descriptor_t *desc) 874 { 875 struct uvideo_camera_terminal *ct; 876 struct uvideo_processing_unit *pu; 877 struct uvideo_extension_unit *xu; 878 879 const uvideo_input_terminal_descriptor_t *input; 880 const uvideo_output_terminal_descriptor_t *output; 881 const uvideo_camera_terminal_descriptor_t *camera; 882 const uvideo_selector_unit_descriptor_t *selector; 883 const uvideo_processing_unit_descriptor_t *processing; 884 const uvideo_extension_unit_descriptor_t *extension; 885 886 memset(vu, 0, sizeof(*vu)); 887 888 switch (desc->bDescriptorSubtype) { 889 case UDESC_INPUT_TERMINAL: 890 input = (const uvideo_input_terminal_descriptor_t *)desc; 891 switch (UGETW(input->wTerminalType)) { 892 case UVIDEO_ITT_CAMERA: 893 camera = 894 (const uvideo_camera_terminal_descriptor_t *)desc; 895 ct = &vu->u.vu_camera; 896 897 ct->ct_objective_focal_min = 898 UGETW(camera->wObjectiveFocalLengthMin); 899 ct->ct_objective_focal_max = 900 UGETW(camera->wObjectiveFocalLengthMax); 901 ct->ct_ocular_focal_length = 902 UGETW(camera->wOcularFocalLength); 903 904 uvideo_unit_alloc_controls(vu, camera->bControlSize, 905 camera->bmControls); 906 break; 907 default: 908 DPRINTF(("uvideo_unit_init: " 909 "unknown input terminal type 0x%04x\n", 910 UGETW(input->wTerminalType))); 911 return USBD_INVAL; 912 } 913 break; 914 case UDESC_OUTPUT_TERMINAL: 915 output = (const uvideo_output_terminal_descriptor_t *)desc; 916 break; 917 case UDESC_SELECTOR_UNIT: 918 selector = (const uvideo_selector_unit_descriptor_t *)desc; 919 920 uvideo_unit_alloc_sources(vu, selector->bNrInPins, 921 selector->baSourceID); 922 break; 923 case UDESC_PROCESSING_UNIT: 924 processing = (const uvideo_processing_unit_descriptor_t *)desc; 925 pu = &vu->u.vu_processing; 926 927 pu->pu_video_standards = PU_GET_VIDEO_STANDARDS(processing); 928 pu->pu_max_multiplier = UGETW(processing->wMaxMultiplier); 929 930 uvideo_unit_alloc_sources(vu, 1, &processing->bSourceID); 931 uvideo_unit_alloc_controls(vu, processing->bControlSize, 932 processing->bmControls); 933 break; 934 case UDESC_EXTENSION_UNIT: 935 extension = (const uvideo_extension_unit_descriptor_t *)desc; 936 xu = &vu->u.vu_extension; 937 /* TODO: copy guid */ 938 939 uvideo_unit_alloc_sources(vu, extension->bNrInPins, 940 extension->baSourceID); 941 uvideo_unit_alloc_controls(vu, XU_GET_CONTROL_SIZE(extension), 942 XU_GET_CONTROLS(extension)); 943 break; 944 default: 945 DPRINTF(("uvideo_unit_alloc: unknown descriptor " 946 "type=0x%02x subtype=0x%02x\n", 947 desc->bDescriptorType, desc->bDescriptorSubtype)); 948 return USBD_INVAL; 949 } 950 951 return USBD_NORMAL_COMPLETION; 952 } 953 954 static void 955 uvideo_unit_free(struct uvideo_unit *vu) 956 { 957 uvideo_unit_free_sources(vu); 958 uvideo_unit_free_controls(vu); 959 kmem_free(vu, sizeof(*vu)); 960 } 961 962 static usbd_status 963 uvideo_unit_alloc_sources(struct uvideo_unit *vu, 964 uint8_t nsrcs, const uint8_t *src_ids) 965 { 966 vu->vu_nsrcs = nsrcs; 967 968 if (nsrcs == 0) { 969 /* do nothing */ 970 } else if (nsrcs == 1) { 971 vu->s.vu_src_id = src_ids[0]; 972 } else { 973 vu->s.vu_src_id_ary = 974 kmem_alloc(sizeof(*vu->s.vu_src_id_ary) * nsrcs, KM_SLEEP); 975 if (vu->s.vu_src_id_ary == NULL) { 976 vu->vu_nsrcs = 0; 977 return USBD_NOMEM; 978 } 979 980 memcpy(vu->s.vu_src_id_ary, src_ids, nsrcs); 981 } 982 983 return USBD_NORMAL_COMPLETION; 984 } 985 986 static void 987 uvideo_unit_free_sources(struct uvideo_unit *vu) 988 { 989 if (vu->vu_nsrcs == 1) 990 return; 991 992 kmem_free(vu->s.vu_src_id_ary, 993 sizeof(*vu->s.vu_src_id_ary) * vu->vu_nsrcs); 994 vu->vu_nsrcs = 0; 995 vu->s.vu_src_id_ary = NULL; 996 } 997 998 static usbd_status 999 uvideo_unit_alloc_controls(struct uvideo_unit *vu, uint8_t size, 1000 const uint8_t *controls) 1001 { 1002 vu->vu_controls = kmem_alloc(sizeof(*vu->vu_controls) * size, KM_SLEEP); 1003 if (vu->vu_controls == NULL) 1004 return USBD_NOMEM; 1005 1006 vu->vu_control_size = size; 1007 memcpy(vu->vu_controls, controls, size); 1008 1009 return USBD_NORMAL_COMPLETION; 1010 } 1011 1012 static void 1013 uvideo_unit_free_controls(struct uvideo_unit *vu) 1014 { 1015 kmem_free(vu->vu_controls, 1016 sizeof(*vu->vu_controls) * vu->vu_control_size); 1017 vu->vu_controls = NULL; 1018 vu->vu_control_size = 0; 1019 } 1020 1021 1022 /* Initialize a stream from a Video Streaming interface 1023 * descriptor. Adds the stream to the stream_list in uvideo_softc. 1024 * This should be called once for new streams, and 1025 * uvideo_stream_init_desc() should then be called for this and each 1026 * additional interface with the same interface number. */ 1027 static usbd_status 1028 uvideo_stream_init(struct uvideo_stream *vs, 1029 struct uvideo_softc *sc, 1030 const usb_interface_descriptor_t *ifdesc, 1031 uint8_t idx) 1032 { 1033 uWord len; 1034 usbd_status err; 1035 1036 SLIST_INSERT_HEAD(&sc->sc_stream_list, vs, entries); 1037 memset(vs, 0, sizeof(*vs)); 1038 vs->vs_parent = sc; 1039 vs->vs_ifaceno = ifdesc->bInterfaceNumber; 1040 vs->vs_subtype = 0; 1041 SIMPLEQ_INIT(&vs->vs_formats); 1042 SIMPLEQ_INIT(&vs->vs_pixel_formats); 1043 vs->vs_default_format = NULL; 1044 vs->vs_current_format.priv = -1; 1045 vs->vs_xfer_type = 0; 1046 1047 err = usbd_device2interface_handle(sc->sc_udev, idx, &vs->vs_iface); 1048 if (err != USBD_NORMAL_COMPLETION) { 1049 DPRINTF(("uvideo_stream_init: " 1050 "error getting vs interface: " 1051 "%s (%d)\n", 1052 usbd_errstr(err), err)); 1053 return err; 1054 } 1055 1056 /* For Xbox Live Vision camera, linux-uvc folk say we need to 1057 * set an alternate interface and wait ~3 seconds prior to 1058 * doing the format probe/commit. We set to alternate 1059 * interface 0, which is the default, zero bandwidth 1060 * interface. This should not have adverse affects on other 1061 * cameras. Errors are ignored. */ 1062 err = usbd_set_interface(vs->vs_iface, 0); 1063 if (err != USBD_NORMAL_COMPLETION) { 1064 DPRINTF(("uvideo_stream_init: error setting alt interface: " 1065 "%s (%d)\n", 1066 usbd_errstr(err), err)); 1067 } 1068 1069 /* Initialize probe and commit data size. This value is 1070 * dependent on the version of the spec the hardware 1071 * implements. */ 1072 err = uvideo_stream_probe(vs, UR_GET_LEN, &len); 1073 if (err != USBD_NORMAL_COMPLETION) { 1074 DPRINTF(("uvideo_stream_init: " 1075 "error getting probe data len: " 1076 "%s (%d)\n", 1077 usbd_errstr(err), err)); 1078 vs->vs_probelen = 26; /* conservative v1.0 length */ 1079 } else if (UGETW(len) <= sizeof(uvideo_probe_and_commit_data_t)) { 1080 DPRINTFN(15,("uvideo_stream_init: probelen=%d\n", UGETW(len))); 1081 vs->vs_probelen = UGETW(len); 1082 } else { 1083 DPRINTFN(15,("uvideo_stream_init: device returned invalid probe" 1084 " len %d, using default\n", UGETW(len))); 1085 vs->vs_probelen = 26; 1086 } 1087 1088 return USBD_NORMAL_COMPLETION; 1089 } 1090 1091 /* Further stream initialization based on a Video Streaming interface 1092 * descriptor and following descriptors belonging to that interface. 1093 * Iterates through all descriptors belonging to this particular 1094 * interface descriptor, modifying the iterator. This may be called 1095 * multiple times because there may be several alternate interfaces 1096 * associated with the same interface number. */ 1097 static usbd_status 1098 uvideo_stream_init_desc(struct uvideo_stream *vs, 1099 const usb_interface_descriptor_t *ifdesc, 1100 usbd_desc_iter_t *iter) 1101 { 1102 const usb_descriptor_t *desc; 1103 const uvideo_descriptor_t *uvdesc; 1104 struct uvideo_bulk_xfer *bx; 1105 struct uvideo_isoc_xfer *ix; 1106 struct uvideo_alternate *alt; 1107 uint8_t xfer_type, xfer_dir; 1108 uint8_t bmAttributes, bEndpointAddress; 1109 int i; 1110 1111 /* Iterate until the next interface descriptor. All 1112 * descriptors until then belong to this streaming 1113 * interface. */ 1114 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 1115 uvdesc = (const uvideo_descriptor_t *)desc; 1116 1117 switch (uvdesc->bDescriptorType) { 1118 case UDESC_ENDPOINT: 1119 bmAttributes = GET(usb_endpoint_descriptor_t, 1120 desc, bmAttributes); 1121 bEndpointAddress = GET(usb_endpoint_descriptor_t, 1122 desc, bEndpointAddress); 1123 xfer_type = UE_GET_XFERTYPE(bmAttributes); 1124 xfer_dir = UE_GET_DIR(bEndpointAddress); 1125 if (xfer_type == UE_BULK && xfer_dir == UE_DIR_IN) { 1126 bx = &vs->vs_xfer.bulk; 1127 if (vs->vs_xfer_type == 0) { 1128 DPRINTFN(15, ("uvideo_attach: " 1129 "BULK stream *\n")); 1130 vs->vs_xfer_type = UE_BULK; 1131 bx->bx_endpt = bEndpointAddress; 1132 DPRINTF(("uvideo_attach: BULK " 1133 "endpoint %x\n", 1134 bx->bx_endpt)); 1135 bx->bx_running = false; 1136 cv_init(&bx->bx_cv, 1137 device_xname(vs->vs_parent->sc_dev) 1138 ); 1139 mutex_init(&bx->bx_lock, 1140 MUTEX_DEFAULT, IPL_NONE); 1141 } 1142 } else if (xfer_type == UE_ISOCHRONOUS) { 1143 ix = &vs->vs_xfer.isoc; 1144 for (i = 0; i < UVIDEO_NXFERS; i++) { 1145 ix->ix_i[i].i_ix = ix; 1146 ix->ix_i[i].i_vs = vs; 1147 } 1148 if (vs->vs_xfer_type == 0) { 1149 DPRINTFN(15, ("uvideo_attach: " 1150 "ISOC stream *\n")); 1151 SLIST_INIT(&ix->ix_altlist); 1152 vs->vs_xfer_type = UE_ISOCHRONOUS; 1153 ix->ix_endpt = 1154 GET(usb_endpoint_descriptor_t, 1155 desc, bEndpointAddress); 1156 } 1157 1158 alt = kmem_alloc(sizeof(*alt), KM_NOSLEEP); 1159 if (alt == NULL) 1160 return USBD_NOMEM; 1161 1162 alt->altno = ifdesc->bAlternateSetting; 1163 alt->interval = 1164 GET(usb_endpoint_descriptor_t, 1165 desc, bInterval); 1166 1167 alt->max_packet_size = 1168 UE_GET_SIZE(UGETW(GET(usb_endpoint_descriptor_t, 1169 desc, wMaxPacketSize))); 1170 alt->max_packet_size *= 1171 (UE_GET_TRANS(UGETW(GET( 1172 usb_endpoint_descriptor_t, desc, 1173 wMaxPacketSize)))) + 1; 1174 1175 SLIST_INSERT_HEAD(&ix->ix_altlist, 1176 alt, entries); 1177 } 1178 break; 1179 case UDESC_CS_INTERFACE: 1180 if (ifdesc->bAlternateSetting != 0) { 1181 DPRINTF(("uvideo_stream_init_alternate: " 1182 "unexpected class-specific descriptor " 1183 "len=%d type=0x%02x subtype=0x%02x\n", 1184 uvdesc->bLength, 1185 uvdesc->bDescriptorType, 1186 uvdesc->bDescriptorSubtype)); 1187 break; 1188 } 1189 1190 switch (uvdesc->bDescriptorSubtype) { 1191 case UDESC_VS_INPUT_HEADER: 1192 vs->vs_subtype = UDESC_VS_INPUT_HEADER; 1193 break; 1194 case UDESC_VS_OUTPUT_HEADER: 1195 /* TODO: handle output stream */ 1196 DPRINTF(("uvideo: VS output not implemented\n")); 1197 vs->vs_subtype = UDESC_VS_OUTPUT_HEADER; 1198 return USBD_INVAL; 1199 case UDESC_VS_FORMAT_UNCOMPRESSED: 1200 case UDESC_VS_FORMAT_FRAME_BASED: 1201 case UDESC_VS_FORMAT_MJPEG: 1202 uvideo_stream_init_frame_based_format(vs, 1203 uvdesc, 1204 iter); 1205 break; 1206 case UDESC_VS_FORMAT_MPEG2TS: 1207 case UDESC_VS_FORMAT_DV: 1208 case UDESC_VS_FORMAT_STREAM_BASED: 1209 default: 1210 DPRINTF(("uvideo: unimplemented VS CS " 1211 "descriptor len=%d type=0x%02x " 1212 "subtype=0x%02x\n", 1213 uvdesc->bLength, 1214 uvdesc->bDescriptorType, 1215 uvdesc->bDescriptorSubtype)); 1216 break; 1217 } 1218 break; 1219 default: 1220 DPRINTF(("uvideo_stream_init_desc: " 1221 "unknown descriptor " 1222 "len=%d type=0x%02x\n", 1223 uvdesc->bLength, 1224 uvdesc->bDescriptorType)); 1225 break; 1226 } 1227 } 1228 1229 return USBD_NORMAL_COMPLETION; 1230 } 1231 1232 /* Finialize and free memory associated with this stream. */ 1233 static void 1234 uvideo_stream_free(struct uvideo_stream *vs) 1235 { 1236 struct uvideo_alternate *alt; 1237 struct uvideo_pixel_format *pixel_format; 1238 struct uvideo_format *format; 1239 1240 /* free linked list of alternate interfaces */ 1241 if (vs->vs_xfer_type == UE_ISOCHRONOUS) { 1242 while (!SLIST_EMPTY(&vs->vs_xfer.isoc.ix_altlist)) { 1243 alt = SLIST_FIRST(&vs->vs_xfer.isoc.ix_altlist); 1244 SLIST_REMOVE_HEAD(&vs->vs_xfer.isoc.ix_altlist, 1245 entries); 1246 kmem_free(alt, sizeof(*alt)); 1247 } 1248 } 1249 1250 /* free linked-list of formats and pixel formats */ 1251 while ((format = SIMPLEQ_FIRST(&vs->vs_formats)) != NULL) { 1252 SIMPLEQ_REMOVE_HEAD(&vs->vs_formats, entries); 1253 kmem_free(format, sizeof(struct uvideo_format)); 1254 } 1255 while ((pixel_format = SIMPLEQ_FIRST(&vs->vs_pixel_formats)) != NULL) { 1256 SIMPLEQ_REMOVE_HEAD(&vs->vs_pixel_formats, entries); 1257 kmem_free(pixel_format, sizeof(struct uvideo_pixel_format)); 1258 } 1259 1260 kmem_free(vs, sizeof(*vs)); 1261 } 1262 1263 1264 static usbd_status 1265 uvideo_stream_init_frame_based_format(struct uvideo_stream *vs, 1266 const uvideo_descriptor_t *format_desc, 1267 usbd_desc_iter_t *iter) 1268 { 1269 struct uvideo_pixel_format *pformat, *pfiter; 1270 enum video_pixel_format pixel_format; 1271 struct uvideo_format *format; 1272 const uvideo_descriptor_t *uvdesc; 1273 uint8_t subtype, default_index, index; 1274 uint32_t frame_interval; 1275 const usb_guid_t *guid; 1276 1277 pixel_format = VIDEO_FORMAT_UNDEFINED; 1278 1279 switch (format_desc->bDescriptorSubtype) { 1280 case UDESC_VS_FORMAT_UNCOMPRESSED: 1281 subtype = UDESC_VS_FRAME_UNCOMPRESSED; 1282 default_index = GET(uvideo_vs_format_uncompressed_descriptor_t, 1283 format_desc, 1284 bDefaultFrameIndex); 1285 guid = GETP(uvideo_vs_format_uncompressed_descriptor_t, 1286 format_desc, 1287 guidFormat); 1288 if (usb_guid_cmp(guid, &uvideo_guid_format_yuy2) == 0) 1289 pixel_format = VIDEO_FORMAT_YUY2; 1290 else if (usb_guid_cmp(guid, &uvideo_guid_format_nv12) == 0) 1291 pixel_format = VIDEO_FORMAT_NV12; 1292 else if (usb_guid_cmp(guid, &uvideo_guid_format_uyvy) == 0) 1293 pixel_format = VIDEO_FORMAT_UYVY; 1294 break; 1295 case UDESC_VS_FORMAT_FRAME_BASED: 1296 subtype = UDESC_VS_FRAME_FRAME_BASED; 1297 default_index = GET(uvideo_format_frame_based_descriptor_t, 1298 format_desc, 1299 bDefaultFrameIndex); 1300 break; 1301 case UDESC_VS_FORMAT_MJPEG: 1302 subtype = UDESC_VS_FRAME_MJPEG; 1303 default_index = GET(uvideo_vs_format_mjpeg_descriptor_t, 1304 format_desc, 1305 bDefaultFrameIndex); 1306 pixel_format = VIDEO_FORMAT_MJPEG; 1307 break; 1308 default: 1309 DPRINTF(("uvideo: unknown frame based format %d\n", 1310 format_desc->bDescriptorSubtype)); 1311 return USBD_INVAL; 1312 } 1313 1314 pformat = NULL; 1315 SIMPLEQ_FOREACH(pfiter, &vs->vs_pixel_formats, entries) { 1316 if (pfiter->pixel_format == pixel_format) { 1317 pformat = pfiter; 1318 break; 1319 } 1320 } 1321 if (pixel_format != VIDEO_FORMAT_UNDEFINED && pformat == NULL) { 1322 pformat = kmem_zalloc(sizeof(*pformat), KM_SLEEP); 1323 pformat->pixel_format = pixel_format; 1324 DPRINTF(("uvideo: Adding pixel format %d\n", 1325 pixel_format)); 1326 SIMPLEQ_INSERT_TAIL(&vs->vs_pixel_formats, 1327 pformat, entries); 1328 } 1329 1330 /* Iterate through frame descriptors directly following the 1331 * format descriptor, and add a format to the format list for 1332 * each frame descriptor. */ 1333 while ((uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_peek_next(iter)) && 1334 (uvdesc != NULL) && (uvdesc->bDescriptorSubtype == subtype)) 1335 { 1336 uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_next(iter); 1337 1338 format = kmem_zalloc(sizeof(struct uvideo_format), KM_SLEEP); 1339 if (format == NULL) { 1340 DPRINTF(("uvideo: failed to alloc video format\n")); 1341 return USBD_NOMEM; 1342 } 1343 1344 format->format.pixel_format = pixel_format; 1345 1346 switch (format_desc->bDescriptorSubtype) { 1347 case UDESC_VS_FORMAT_UNCOMPRESSED: 1348 #ifdef UVIDEO_DEBUG 1349 if (pixel_format == VIDEO_FORMAT_UNDEFINED && 1350 uvideodebug) { 1351 guid = GETP( 1352 uvideo_vs_format_uncompressed_descriptor_t, 1353 format_desc, 1354 guidFormat); 1355 1356 DPRINTF(("uvideo: format undefined ")); 1357 usb_guid_print(guid); 1358 DPRINTF(("\n")); 1359 } 1360 #endif 1361 1362 UVIDEO_FORMAT_INIT_FRAME_BASED( 1363 uvideo_vs_format_uncompressed_descriptor_t, 1364 format_desc, 1365 uvideo_vs_frame_uncompressed_descriptor_t, 1366 uvdesc, 1367 format); 1368 format->format.sample_size = 1369 UGETDW( 1370 GET(uvideo_vs_frame_uncompressed_descriptor_t, 1371 uvdesc, dwMaxVideoFrameBufferSize)); 1372 format->format.stride = 1373 format->format.sample_size / format->format.height; 1374 index = GET(uvideo_vs_frame_uncompressed_descriptor_t, 1375 uvdesc, 1376 bFrameIndex); 1377 frame_interval = 1378 UGETDW( 1379 GET(uvideo_vs_frame_uncompressed_descriptor_t, 1380 uvdesc, 1381 dwDefaultFrameInterval)); 1382 break; 1383 case UDESC_VS_FORMAT_MJPEG: 1384 UVIDEO_FORMAT_INIT_FRAME_BASED( 1385 uvideo_vs_format_mjpeg_descriptor_t, 1386 format_desc, 1387 uvideo_vs_frame_mjpeg_descriptor_t, 1388 uvdesc, 1389 format); 1390 format->format.sample_size = 1391 UGETDW( 1392 GET(uvideo_vs_frame_mjpeg_descriptor_t, 1393 uvdesc, dwMaxVideoFrameBufferSize)); 1394 format->format.stride = 1395 format->format.sample_size / format->format.height; 1396 index = GET(uvideo_vs_frame_mjpeg_descriptor_t, 1397 uvdesc, 1398 bFrameIndex); 1399 frame_interval = 1400 UGETDW( 1401 GET(uvideo_vs_frame_mjpeg_descriptor_t, 1402 uvdesc, 1403 dwDefaultFrameInterval)); 1404 break; 1405 case UDESC_VS_FORMAT_FRAME_BASED: 1406 format->format.pixel_format = VIDEO_FORMAT_UNDEFINED; 1407 UVIDEO_FORMAT_INIT_FRAME_BASED( 1408 uvideo_format_frame_based_descriptor_t, 1409 format_desc, 1410 uvideo_frame_frame_based_descriptor_t, 1411 uvdesc, 1412 format); 1413 index = GET(uvideo_frame_frame_based_descriptor_t, 1414 uvdesc, 1415 bFrameIndex); 1416 format->format.stride = 1417 UGETDW( 1418 GET(uvideo_frame_frame_based_descriptor_t, 1419 uvdesc, dwBytesPerLine)); 1420 format->format.sample_size = 1421 format->format.stride * format->format.height; 1422 frame_interval = 1423 UGETDW( 1424 GET(uvideo_frame_frame_based_descriptor_t, 1425 uvdesc, dwDefaultFrameInterval)); 1426 break; 1427 default: 1428 /* shouldn't ever get here */ 1429 DPRINTF(("uvideo: unknown frame based format %d\n", 1430 format_desc->bDescriptorSubtype)); 1431 kmem_free(format, sizeof(struct uvideo_format)); 1432 return USBD_INVAL; 1433 } 1434 1435 DPRINTF(("uvideo: found format (index %d) type %d " 1436 "size %ux%u size %u stride %u interval %u\n", 1437 index, format->format.pixel_format, format->format.width, 1438 format->format.height, format->format.sample_size, 1439 format->format.stride, frame_interval)); 1440 1441 SIMPLEQ_INSERT_TAIL(&vs->vs_formats, format, entries); 1442 1443 if (vs->vs_default_format == NULL && index == default_index 1444 #ifdef UVIDEO_DISABLE_MJPEG 1445 && subtype != UDESC_VS_FRAME_MJPEG 1446 #endif 1447 ) { 1448 DPRINTF((" ^ picking this one\n")); 1449 vs->vs_default_format = &format->format; 1450 vs->vs_frame_interval = frame_interval; 1451 } 1452 1453 } 1454 1455 return USBD_NORMAL_COMPLETION; 1456 } 1457 1458 static int 1459 uvideo_stream_start_xfer(struct uvideo_stream *vs) 1460 { 1461 struct uvideo_softc *sc = vs->vs_parent; 1462 struct uvideo_bulk_xfer *bx; 1463 struct uvideo_isoc_xfer *ix; 1464 uint32_t vframe_len; /* rough bytes per video frame */ 1465 uint32_t uframe_len; /* bytes per usb frame (TODO: or microframe?) */ 1466 uint32_t nframes; /* number of usb frames (TODO: or microframs?) */ 1467 int i, ret; 1468 1469 struct uvideo_alternate *alt, *alt_maybe; 1470 usbd_status err; 1471 1472 switch (vs->vs_xfer_type) { 1473 case UE_BULK: 1474 ret = 0; 1475 bx = &vs->vs_xfer.bulk; 1476 1477 bx->bx_xfer = usbd_alloc_xfer(sc->sc_udev); 1478 if (bx->bx_xfer == NULL) { 1479 DPRINTF(("uvideo: couldn't allocate xfer\n")); 1480 return ENOMEM; 1481 } 1482 DPRINTF(("uvideo: xfer %p\n", bx->bx_xfer)); 1483 1484 bx->bx_buflen = vs->vs_max_payload_size; 1485 1486 DPRINTF(("uvideo: allocating %u byte buffer\n", bx->bx_buflen)); 1487 bx->bx_buffer = usbd_alloc_buffer(bx->bx_xfer, bx->bx_buflen); 1488 1489 if (bx->bx_buffer == NULL) { 1490 DPRINTF(("uvideo: couldn't allocate buffer\n")); 1491 return ENOMEM; 1492 } 1493 1494 err = usbd_open_pipe(vs->vs_iface, bx->bx_endpt, 0, 1495 &bx->bx_pipe); 1496 if (err != USBD_NORMAL_COMPLETION) { 1497 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1498 usbd_errstr(err), err)); 1499 return EIO; 1500 } 1501 DPRINTF(("uvideo: pipe %p\n", bx->bx_pipe)); 1502 1503 mutex_enter(&bx->bx_lock); 1504 if (bx->bx_running == false) { 1505 bx->bx_running = true; 1506 ret = kthread_create(PRI_UVIDEO, 0, NULL, 1507 uvideo_stream_recv_bulk_transfer, vs, 1508 NULL, device_xname(sc->sc_dev)); 1509 if (ret) { 1510 DPRINTF(("uvideo: couldn't create kthread:" 1511 " %d\n", err)); 1512 bx->bx_running = false; 1513 mutex_exit(&bx->bx_lock); 1514 return err; 1515 } 1516 } else 1517 aprint_error_dev(sc->sc_dev, 1518 "transfer already in progress\n"); 1519 mutex_exit(&bx->bx_lock); 1520 1521 DPRINTF(("uvideo: thread created\n")); 1522 1523 return 0; 1524 case UE_ISOCHRONOUS: 1525 ix = &vs->vs_xfer.isoc; 1526 1527 /* Choose an alternate interface most suitable for 1528 * this format. Choose the smallest size that can 1529 * contain max_payload_size. 1530 * 1531 * It is assumed that the list is sorted in descending 1532 * order from largest to smallest packet size. 1533 * 1534 * TODO: what should the strategy be for choosing an 1535 * alt interface? 1536 */ 1537 alt = NULL; 1538 SLIST_FOREACH(alt_maybe, &ix->ix_altlist, entries) { 1539 /* TODO: define "packet" and "payload". I think 1540 * several packets can make up one payload which would 1541 * call into question this method of selecting an 1542 * alternate interface... */ 1543 1544 if (alt_maybe->max_packet_size > vs->vs_max_payload_size) 1545 continue; 1546 1547 if (alt == NULL || 1548 alt_maybe->max_packet_size >= alt->max_packet_size) 1549 alt = alt_maybe; 1550 } 1551 1552 if (alt == NULL) { 1553 DPRINTF(("uvideo_stream_start_xfer: " 1554 "no suitable alternate interface found\n")); 1555 return EINVAL; 1556 } 1557 1558 DPRINTFN(15,("uvideo_stream_start_xfer: " 1559 "choosing alternate interface " 1560 "%d wMaxPacketSize=%d bInterval=%d\n", 1561 alt->altno, alt->max_packet_size, alt->interval)); 1562 1563 err = usbd_set_interface(vs->vs_iface, alt->altno); 1564 if (err != USBD_NORMAL_COMPLETION) { 1565 DPRINTF(("uvideo_stream_start_xfer: " 1566 "error setting alt interface: %s (%d)\n", 1567 usbd_errstr(err), err)); 1568 return EIO; 1569 } 1570 1571 /* TODO: "packet" not same as frame */ 1572 vframe_len = vs->vs_current_format.sample_size; 1573 uframe_len = alt->max_packet_size; 1574 nframes = (vframe_len + uframe_len - 1) / uframe_len; 1575 nframes = (nframes + 7) & ~7; /*round up for ehci inefficiency*/ 1576 DPRINTF(("uvideo_stream_start_xfer: nframes=%d\n", nframes)); 1577 1578 ix->ix_nframes = nframes; 1579 ix->ix_uframe_len = uframe_len; 1580 for (i = 0; i < UVIDEO_NXFERS; i++) { 1581 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1582 isoc->i_frlengths = 1583 kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, 1584 KM_SLEEP); 1585 if (isoc->i_frlengths == NULL) { 1586 DPRINTF(("uvideo: failed to alloc frlengths:" 1587 "%s (%d)\n", 1588 usbd_errstr(err), err)); 1589 return ENOMEM; 1590 } 1591 } 1592 1593 err = usbd_open_pipe(vs->vs_iface, ix->ix_endpt, 1594 USBD_EXCLUSIVE_USE, &ix->ix_pipe); 1595 if (err != USBD_NORMAL_COMPLETION) { 1596 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1597 usbd_errstr(err), err)); 1598 return EIO; 1599 } 1600 1601 for (i = 0; i < UVIDEO_NXFERS; i++) { 1602 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1603 isoc->i_xfer = usbd_alloc_xfer(sc->sc_udev); 1604 if (isoc->i_xfer == NULL) { 1605 DPRINTF(("uvideo: failed to alloc xfer: %s" 1606 " (%d)\n", 1607 usbd_errstr(err), err)); 1608 return ENOMEM; 1609 } 1610 1611 isoc->i_buf = usbd_alloc_buffer(isoc->i_xfer, 1612 nframes * uframe_len); 1613 1614 if (isoc->i_buf == NULL) { 1615 DPRINTF(("uvideo: failed to alloc buf: %s" 1616 " (%d)\n", 1617 usbd_errstr(err), err)); 1618 return ENOMEM; 1619 } 1620 } 1621 1622 uvideo_stream_recv_isoc_start(vs); 1623 1624 return 0; 1625 default: 1626 /* should never get here */ 1627 DPRINTF(("uvideo_stream_start_xfer: unknown xfer type 0x%x\n", 1628 vs->vs_xfer_type)); 1629 return EINVAL; 1630 } 1631 } 1632 1633 static int 1634 uvideo_stream_stop_xfer(struct uvideo_stream *vs) 1635 { 1636 struct uvideo_bulk_xfer *bx; 1637 struct uvideo_isoc_xfer *ix; 1638 usbd_status err; 1639 int i; 1640 1641 switch (vs->vs_xfer_type) { 1642 case UE_BULK: 1643 bx = &vs->vs_xfer.bulk; 1644 1645 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: " 1646 "waiting for thread to complete\n")); 1647 mutex_enter(&bx->bx_lock); 1648 if (bx->bx_running == true) { 1649 bx->bx_running = false; 1650 cv_wait_sig(&bx->bx_cv, &bx->bx_lock); 1651 } 1652 mutex_exit(&bx->bx_lock); 1653 1654 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: cleaning up\n")); 1655 1656 if (bx->bx_pipe) { 1657 usbd_abort_pipe(bx->bx_pipe); 1658 usbd_close_pipe(bx->bx_pipe); 1659 bx->bx_pipe = NULL; 1660 } 1661 1662 if (bx->bx_xfer) { 1663 usbd_free_xfer(bx->bx_xfer); 1664 bx->bx_xfer = NULL; 1665 } 1666 1667 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: done\n")); 1668 1669 return 0; 1670 case UE_ISOCHRONOUS: 1671 ix = &vs->vs_xfer.isoc; 1672 if (ix->ix_pipe != NULL) { 1673 usbd_abort_pipe(ix->ix_pipe); 1674 usbd_close_pipe(ix->ix_pipe); 1675 ix->ix_pipe = NULL; 1676 } 1677 1678 for (i = 0; i < UVIDEO_NXFERS; i++) { 1679 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1680 if (isoc->i_xfer != NULL) { 1681 usbd_free_buffer(isoc->i_xfer); 1682 usbd_free_xfer(isoc->i_xfer); 1683 isoc->i_xfer = NULL; 1684 } 1685 1686 if (isoc->i_frlengths != NULL) { 1687 kmem_free(isoc->i_frlengths, 1688 sizeof(isoc->i_frlengths[0]) * 1689 ix->ix_nframes); 1690 isoc->i_frlengths = NULL; 1691 } 1692 } 1693 1694 /* Give it some time to settle */ 1695 usbd_delay_ms(vs->vs_parent->sc_udev, 1000); 1696 1697 /* Set to zero bandwidth alternate interface zero */ 1698 err = usbd_set_interface(vs->vs_iface, 0); 1699 if (err != USBD_NORMAL_COMPLETION) { 1700 DPRINTF(("uvideo_stream_stop_transfer: " 1701 "error setting zero bandwidth interface: " 1702 "%s (%d)\n", 1703 usbd_errstr(err), err)); 1704 return EIO; 1705 } 1706 1707 return 0; 1708 default: 1709 /* should never get here */ 1710 DPRINTF(("uvideo_stream_stop_xfer: unknown xfer type 0x%x\n", 1711 vs->vs_xfer_type)); 1712 return EINVAL; 1713 } 1714 } 1715 1716 static usbd_status 1717 uvideo_stream_recv_isoc_start(struct uvideo_stream *vs) 1718 { 1719 int i; 1720 1721 for (i = 0; i < UVIDEO_NXFERS; i++) 1722 uvideo_stream_recv_isoc_start1(&vs->vs_xfer.isoc.ix_i[i]); 1723 1724 return USBD_NORMAL_COMPLETION; 1725 } 1726 1727 /* Initiate a usb transfer. */ 1728 static usbd_status 1729 uvideo_stream_recv_isoc_start1(struct uvideo_isoc *isoc) 1730 { 1731 struct uvideo_isoc_xfer *ix; 1732 usbd_status err; 1733 int i; 1734 1735 ix = isoc->i_ix; 1736 1737 for (i = 0; i < ix->ix_nframes; ++i) 1738 isoc->i_frlengths[i] = ix->ix_uframe_len; 1739 1740 usbd_setup_isoc_xfer(isoc->i_xfer, 1741 ix->ix_pipe, 1742 isoc, 1743 isoc->i_frlengths, 1744 ix->ix_nframes, 1745 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1746 uvideo_stream_recv_isoc_complete); 1747 1748 err = usbd_transfer(isoc->i_xfer); 1749 if (err != USBD_IN_PROGRESS) { 1750 DPRINTF(("uvideo_stream_recv_start: " 1751 "usbd_transfer status=%s (%d)\n", 1752 usbd_errstr(err), err)); 1753 } 1754 return err; 1755 } 1756 1757 static usbd_status 1758 uvideo_stream_recv_process(struct uvideo_stream *vs, uint8_t *buf, uint32_t len) 1759 { 1760 uvideo_payload_header_t *hdr; 1761 struct video_payload payload; 1762 1763 if (len < sizeof(uvideo_payload_header_t)) { 1764 DPRINTF(("uvideo_stream_recv_process: len %d < payload hdr\n", 1765 len)); 1766 return USBD_SHORT_XFER; 1767 } 1768 1769 hdr = (uvideo_payload_header_t *)buf; 1770 1771 if (hdr->bHeaderLength > UVIDEO_PAYLOAD_HEADER_SIZE || 1772 hdr->bHeaderLength < sizeof(uvideo_payload_header_t)) 1773 return USBD_INVAL; 1774 if (hdr->bHeaderLength == len && !(hdr->bmHeaderInfo & UV_END_OF_FRAME)) 1775 return USBD_INVAL; 1776 if (hdr->bmHeaderInfo & UV_ERROR) 1777 return USBD_IOERROR; 1778 1779 payload.data = buf + hdr->bHeaderLength; 1780 payload.size = len - hdr->bHeaderLength; 1781 payload.frameno = hdr->bmHeaderInfo & UV_FRAME_ID; 1782 payload.end_of_frame = hdr->bmHeaderInfo & UV_END_OF_FRAME; 1783 1784 video_submit_payload(vs->vs_parent->sc_videodev, &payload); 1785 1786 return USBD_NORMAL_COMPLETION; 1787 } 1788 1789 /* Callback on completion of usb isoc transfer */ 1790 static void 1791 uvideo_stream_recv_isoc_complete(usbd_xfer_handle xfer, 1792 usbd_private_handle priv, 1793 usbd_status status) 1794 { 1795 struct uvideo_stream *vs; 1796 struct uvideo_isoc_xfer *ix; 1797 struct uvideo_isoc *isoc; 1798 int i; 1799 uint32_t count; 1800 const uvideo_payload_header_t *hdr; 1801 uint8_t *buf; 1802 1803 isoc = priv; 1804 vs = isoc->i_vs; 1805 ix = isoc->i_ix; 1806 1807 if (status != USBD_NORMAL_COMPLETION) { 1808 DPRINTF(("uvideo_stream_recv_isoc_complete: status=%s (%d)\n", 1809 usbd_errstr(status), status)); 1810 1811 if (status == USBD_STALLED) 1812 usbd_clear_endpoint_stall_async(ix->ix_pipe); 1813 else 1814 return; 1815 } else { 1816 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1817 1818 if (count == 0) { 1819 /* DPRINTF(("uvideo: zero length transfer\n")); */ 1820 goto next; 1821 } 1822 1823 hdr = (const uvideo_payload_header_t *)isoc->i_buf; 1824 1825 for (i = 0, buf = isoc->i_buf; 1826 i < ix->ix_nframes; 1827 ++i, buf += ix->ix_uframe_len) 1828 { 1829 status = uvideo_stream_recv_process(vs, buf, 1830 isoc->i_frlengths[i]); 1831 if (status == USBD_IOERROR) 1832 break; 1833 } 1834 } 1835 1836 next: 1837 uvideo_stream_recv_isoc_start1(isoc); 1838 } 1839 1840 static void 1841 uvideo_stream_recv_bulk_transfer(void *addr) 1842 { 1843 struct uvideo_stream *vs = addr; 1844 struct uvideo_bulk_xfer *bx = &vs->vs_xfer.bulk; 1845 usbd_status err; 1846 uint32_t len; 1847 1848 DPRINTF(("uvideo_stream_recv_bulk_transfer: " 1849 "vs %p sc %p bx %p buffer %p\n", vs, vs->vs_parent, bx, 1850 bx->bx_buffer)); 1851 1852 while (bx->bx_running) { 1853 len = bx->bx_buflen; 1854 err = usbd_bulk_transfer(bx->bx_xfer, bx->bx_pipe, 1855 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1856 USBD_NO_TIMEOUT, 1857 bx->bx_buffer, &len, "uvideorb"); 1858 1859 if (err == USBD_NORMAL_COMPLETION) { 1860 uvideo_stream_recv_process(vs, bx->bx_buffer, len); 1861 } else { 1862 DPRINTF(("uvideo_stream_recv_bulk_transfer: %s\n", 1863 usbd_errstr(err))); 1864 } 1865 } 1866 1867 DPRINTF(("uvideo_stream_recv_bulk_transfer: notify complete\n")); 1868 1869 mutex_enter(&bx->bx_lock); 1870 cv_broadcast(&bx->bx_cv); 1871 mutex_exit(&bx->bx_lock); 1872 1873 DPRINTF(("uvideo_stream_recv_bulk_transfer: return\n")); 1874 1875 kthread_exit(0); 1876 } 1877 1878 /* 1879 * uvideo_open - probe and commit video format and start receiving 1880 * video data 1881 */ 1882 static int 1883 uvideo_open(void *addr, int flags) 1884 { 1885 struct uvideo_softc *sc; 1886 struct uvideo_stream *vs; 1887 struct video_format fmt; 1888 1889 sc = addr; 1890 vs = sc->sc_stream_in; 1891 1892 DPRINTF(("uvideo_open: sc=%p\n", sc)); 1893 if (sc->sc_dying) 1894 return EIO; 1895 1896 /* XXX select default format */ 1897 fmt = *vs->vs_default_format; 1898 return uvideo_set_format(addr, &fmt); 1899 } 1900 1901 1902 static void 1903 uvideo_close(void *addr) 1904 { 1905 struct uvideo_softc *sc; 1906 1907 sc = addr; 1908 1909 if (sc->sc_state != UVIDEO_STATE_CLOSED) { 1910 sc->sc_state = UVIDEO_STATE_CLOSED; 1911 } 1912 } 1913 1914 static const char * 1915 uvideo_get_devname(void *addr) 1916 { 1917 struct uvideo_softc *sc = addr; 1918 return sc->sc_devname; 1919 } 1920 1921 static int 1922 uvideo_enum_format(void *addr, uint32_t index, struct video_format *format) 1923 { 1924 struct uvideo_softc *sc = addr; 1925 struct uvideo_stream *vs = sc->sc_stream_in; 1926 struct uvideo_pixel_format *pixel_format; 1927 int off; 1928 1929 if (sc->sc_dying) 1930 return EIO; 1931 1932 off = 0; 1933 SIMPLEQ_FOREACH(pixel_format, &vs->vs_pixel_formats, entries) { 1934 if (off++ != index) 1935 continue; 1936 format->pixel_format = pixel_format->pixel_format; 1937 return 0; 1938 } 1939 1940 return EINVAL; 1941 } 1942 1943 /* 1944 * uvideo_get_format 1945 */ 1946 static int 1947 uvideo_get_format(void *addr, struct video_format *format) 1948 { 1949 struct uvideo_softc *sc = addr; 1950 struct uvideo_stream *vs = sc->sc_stream_in; 1951 1952 if (sc->sc_dying) 1953 return EIO; 1954 1955 *format = vs->vs_current_format; 1956 1957 return 0; 1958 } 1959 1960 /* 1961 * uvideo_set_format - TODO: this is boken and does nothing 1962 */ 1963 static int 1964 uvideo_set_format(void *addr, struct video_format *format) 1965 { 1966 struct uvideo_softc *sc; 1967 struct uvideo_stream *vs; 1968 struct uvideo_format *uvfmt; 1969 uvideo_probe_and_commit_data_t probe, maxprobe; 1970 uint8_t ifaceno; 1971 usbd_status err; 1972 1973 sc = addr; 1974 1975 DPRINTF(("uvideo_set_format: sc=%p\n", sc)); 1976 if (sc->sc_dying) 1977 return EIO; 1978 1979 vs = sc->sc_stream_in; 1980 ifaceno = vs->vs_ifaceno; 1981 1982 uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, 1983 format->width, format->height); 1984 if (uvfmt == NULL) { 1985 DPRINTF(("uvideo: uvideo_stream_guess_format couldn't find " 1986 "%dx%d format %d\n", format->width, format->height, 1987 format->pixel_format)); 1988 return EINVAL; 1989 } 1990 1991 uvideo_init_probe_data(&probe); 1992 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); 1993 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); 1994 USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ 1995 1996 maxprobe = probe; 1997 err = uvideo_stream_probe(vs, UR_GET_MAX, &maxprobe); 1998 if (err) { 1999 DPRINTF(("uvideo: error probe/GET_MAX: %s (%d)\n", 2000 usbd_errstr(err), err)); 2001 } else { 2002 USETW(probe.wCompQuality, UGETW(maxprobe.wCompQuality)); 2003 } 2004 2005 err = uvideo_stream_probe(vs, UR_SET_CUR, &probe); 2006 if (err) { 2007 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2008 usbd_errstr(err), err)); 2009 return EIO; 2010 } 2011 2012 uvideo_init_probe_data(&probe); 2013 err = uvideo_stream_probe(vs, UR_GET_CUR, &probe); 2014 if (err) { 2015 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2016 usbd_errstr(err), err)); 2017 return EIO; 2018 } 2019 2020 if (probe.bFormatIndex != UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt)) { 2021 DPRINTF(("uvideo: probe/GET_CUR returned format index %d " 2022 "(expected %d)\n", probe.bFormatIndex, 2023 UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt))); 2024 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); 2025 } 2026 if (probe.bFrameIndex != UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt)) { 2027 DPRINTF(("uvideo: probe/GET_CUR returned frame index %d " 2028 "(expected %d)\n", probe.bFrameIndex, 2029 UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt))); 2030 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); 2031 } 2032 USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ 2033 2034 /* commit/SET_CUR. Fourth step is to set the alternate 2035 * interface. Currently the fourth step is in 2036 * uvideo_start_transfer. Maybe move it here? */ 2037 err = uvideo_stream_commit(vs, UR_SET_CUR, &probe); 2038 if (err) { 2039 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2040 usbd_errstr(err), err)); 2041 return EIO; 2042 } 2043 2044 DPRINTFN(15, ("uvideo_set_format: committing to format: " 2045 "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " 2046 "dwFrameInterval=%u wKeyFrameRate=%d wPFrameRate=%d " 2047 "wCompQuality=%d wCompWindowSize=%d wDelay=%d " 2048 "dwMaxVideoFrameSize=%u dwMaxPayloadTransferSize=%u", 2049 UGETW(probe.bmHint), 2050 probe.bFormatIndex, 2051 probe.bFrameIndex, 2052 UGETDW(probe.dwFrameInterval), 2053 UGETW(probe.wKeyFrameRate), 2054 UGETW(probe.wPFrameRate), 2055 UGETW(probe.wCompQuality), 2056 UGETW(probe.wCompWindowSize), 2057 UGETW(probe.wDelay), 2058 UGETDW(probe.dwMaxVideoFrameSize), 2059 UGETDW(probe.dwMaxPayloadTransferSize))); 2060 if (vs->vs_probelen == 34) { 2061 DPRINTFN(15, (" dwClockFrequency=%u bmFramingInfo=0x%02x " 2062 "bPreferedVersion=%d bMinVersion=%d " 2063 "bMaxVersion=%d", 2064 UGETDW(probe.dwClockFrequency), 2065 probe.bmFramingInfo, 2066 probe.bPreferedVersion, 2067 probe.bMinVersion, 2068 probe.bMaxVersion)); 2069 } 2070 DPRINTFN(15, ("\n")); 2071 2072 vs->vs_frame_interval = UGETDW(probe.dwFrameInterval); 2073 vs->vs_max_payload_size = UGETDW(probe.dwMaxPayloadTransferSize); 2074 2075 *format = uvfmt->format; 2076 vs->vs_current_format = *format; 2077 DPRINTF(("uvideo_set_format: pixeltype is %d\n", format->pixel_format)); 2078 2079 return 0; 2080 } 2081 2082 static int 2083 uvideo_try_format(void *addr, struct video_format *format) 2084 { 2085 struct uvideo_softc *sc = addr; 2086 struct uvideo_stream *vs = sc->sc_stream_in; 2087 struct uvideo_format *uvfmt; 2088 2089 uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, 2090 format->width, format->height); 2091 if (uvfmt == NULL) 2092 return EINVAL; 2093 2094 *format = uvfmt->format; 2095 return 0; 2096 } 2097 2098 static int 2099 uvideo_start_transfer(void *addr) 2100 { 2101 struct uvideo_softc *sc = addr; 2102 struct uvideo_stream *vs; 2103 int s, err; 2104 2105 /* FIXME: this functions should be stream specific */ 2106 vs = SLIST_FIRST(&sc->sc_stream_list); 2107 s = splusb(); 2108 err = uvideo_stream_start_xfer(vs); 2109 splx(s); 2110 2111 return err; 2112 } 2113 2114 static int 2115 uvideo_stop_transfer(void *addr) 2116 { 2117 struct uvideo_softc *sc; 2118 int err, s; 2119 2120 sc = addr; 2121 2122 s = splusb(); 2123 err = uvideo_stream_stop_xfer(sc->sc_stream_in); 2124 splx(s); 2125 2126 return err; 2127 } 2128 2129 2130 static int 2131 uvideo_get_control_group(void *addr, struct video_control_group *group) 2132 { 2133 struct uvideo_softc *sc; 2134 usb_device_request_t req; 2135 usbd_status err; 2136 uint8_t control_id, ent_id, data[16]; 2137 uint16_t len; 2138 int s; 2139 2140 sc = addr; 2141 2142 /* request setup */ 2143 switch (group->group_id) { 2144 case VIDEO_CONTROL_PANTILT_RELATIVE: 2145 if (group->length != 4) 2146 return EINVAL; 2147 2148 return EINVAL; 2149 case VIDEO_CONTROL_SHARPNESS: 2150 if (group->length != 1) 2151 return EINVAL; 2152 2153 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 2154 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 2155 len = 2; 2156 break; 2157 default: 2158 return EINVAL; 2159 } 2160 2161 /* do request */ 2162 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 2163 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 2164 UVIDEO_REQUEST_TYPE_GET; 2165 req.bRequest = UR_GET_CUR; 2166 USETW(req.wValue, control_id << 8); 2167 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 2168 USETW(req.wLength, len); 2169 2170 s = splusb(); 2171 err = usbd_do_request(sc->sc_udev, &req, data); 2172 splx(s); 2173 if (err != USBD_NORMAL_COMPLETION) { 2174 DPRINTF(("uvideo_set_control: error %s (%d)\n", 2175 usbd_errstr(err), err)); 2176 return EIO; /* TODO: more detail here? */ 2177 } 2178 2179 /* extract request data */ 2180 switch (group->group_id) { 2181 case VIDEO_CONTROL_SHARPNESS: 2182 group->control[0].value = UGETW(data); 2183 break; 2184 default: 2185 return EINVAL; 2186 } 2187 2188 return 0; 2189 } 2190 2191 2192 static int 2193 uvideo_set_control_group(void *addr, const struct video_control_group *group) 2194 { 2195 struct uvideo_softc *sc; 2196 usb_device_request_t req; 2197 usbd_status err; 2198 uint8_t control_id, ent_id, data[16]; /* long enough for all controls */ 2199 uint16_t len; 2200 int s; 2201 2202 sc = addr; 2203 2204 switch (group->group_id) { 2205 case VIDEO_CONTROL_PANTILT_RELATIVE: 2206 if (group->length != 4) 2207 return EINVAL; 2208 2209 if (group->control[0].value != 0 || 2210 group->control[0].value != 1 || 2211 group->control[0].value != 0xff) 2212 return ERANGE; 2213 2214 if (group->control[2].value != 0 || 2215 group->control[2].value != 1 || 2216 group->control[2].value != 0xff) 2217 return ERANGE; 2218 2219 control_id = UVIDEO_CT_PANTILT_RELATIVE_CONTROL; 2220 ent_id = 1; /* TODO: hardcoded logitech camera terminal */ 2221 len = 4; 2222 data[0] = group->control[0].value; 2223 data[1] = group->control[1].value; 2224 data[2] = group->control[2].value; 2225 data[3] = group->control[3].value; 2226 break; 2227 case VIDEO_CONTROL_BRIGHTNESS: 2228 if (group->length != 1) 2229 return EINVAL; 2230 control_id = UVIDEO_PU_BRIGHTNESS_CONTROL; 2231 ent_id = 2; 2232 len = 2; 2233 USETW(data, group->control[0].value); 2234 break; 2235 case VIDEO_CONTROL_GAIN: 2236 if (group->length != 1) 2237 return EINVAL; 2238 control_id = UVIDEO_PU_GAIN_CONTROL; 2239 ent_id = 2; 2240 len = 2; 2241 USETW(data, group->control[0].value); 2242 break; 2243 case VIDEO_CONTROL_SHARPNESS: 2244 if (group->length != 1) 2245 return EINVAL; 2246 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 2247 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 2248 len = 2; 2249 USETW(data, group->control[0].value); 2250 break; 2251 default: 2252 return EINVAL; 2253 } 2254 2255 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 2256 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 2257 UVIDEO_REQUEST_TYPE_SET; 2258 req.bRequest = UR_SET_CUR; 2259 USETW(req.wValue, control_id << 8); 2260 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 2261 USETW(req.wLength, len); 2262 2263 s = splusb(); 2264 err = usbd_do_request(sc->sc_udev, &req, data); 2265 splx(s); 2266 if (err != USBD_NORMAL_COMPLETION) { 2267 DPRINTF(("uvideo_set_control: error %s (%d)\n", 2268 usbd_errstr(err), err)); 2269 return EIO; /* TODO: more detail here? */ 2270 } 2271 2272 return 0; 2273 } 2274 2275 static usbd_status 2276 uvideo_stream_probe_and_commit(struct uvideo_stream *vs, 2277 uint8_t action, uint8_t control, 2278 void *data) 2279 { 2280 usb_device_request_t req; 2281 2282 switch (action) { 2283 case UR_SET_CUR: 2284 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 2285 USETW(req.wLength, vs->vs_probelen); 2286 break; 2287 case UR_GET_CUR: 2288 case UR_GET_MIN: 2289 case UR_GET_MAX: 2290 case UR_GET_DEF: 2291 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2292 USETW(req.wLength, vs->vs_probelen); 2293 break; 2294 case UR_GET_INFO: 2295 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2296 USETW(req.wLength, sizeof(uByte)); 2297 break; 2298 case UR_GET_LEN: 2299 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2300 USETW(req.wLength, sizeof(uWord)); /* is this right? */ 2301 break; 2302 default: 2303 DPRINTF(("uvideo_probe_and_commit: " 2304 "unknown request action %d\n", action)); 2305 return USBD_NOT_STARTED; 2306 } 2307 2308 req.bRequest = action; 2309 USETW2(req.wValue, control, 0); 2310 USETW2(req.wIndex, 0, vs->vs_ifaceno); 2311 2312 return (usbd_do_request_flags(vs->vs_parent->sc_udev, &req, data, 2313 0, 0, 2314 USBD_DEFAULT_TIMEOUT)); 2315 } 2316 2317 static void 2318 uvideo_init_probe_data(uvideo_probe_and_commit_data_t *probe) 2319 { 2320 /* all zeroes tells camera to choose what it wants */ 2321 memset(probe, 0, sizeof(*probe)); 2322 } 2323 2324 2325 #ifdef _MODULE 2326 2327 MODULE(MODULE_CLASS_DRIVER, uvideo, NULL); 2328 static const struct cfiattrdata videobuscf_iattrdata = { 2329 "videobus", 0, { 2330 { NULL, NULL, 0 }, 2331 } 2332 }; 2333 static const struct cfiattrdata * const uvideo_attrs[] = { 2334 &videobuscf_iattrdata, NULL 2335 }; 2336 CFDRIVER_DECL(uvideo, DV_DULL, uvideo_attrs); 2337 extern struct cfattach uvideo_ca; 2338 extern struct cfattach uvideo_ca; 2339 static int uvideoloc[6] = { -1, -1, -1, -1, -1, -1 }; 2340 static struct cfparent uhubparent = { 2341 "usbifif", NULL, DVUNIT_ANY 2342 }; 2343 static struct cfdata uvideo_cfdata[] = { 2344 { 2345 .cf_name = "uvideo", 2346 .cf_atname = "uvideo", 2347 .cf_unit = 0, 2348 .cf_fstate = FSTATE_STAR, 2349 .cf_loc = uvideoloc, 2350 .cf_flags = 0, 2351 .cf_pspec = &uhubparent, 2352 }, 2353 { NULL } 2354 }; 2355 2356 static int 2357 uvideo_modcmd(modcmd_t cmd, void *arg) 2358 { 2359 int err; 2360 2361 2362 switch (cmd) { 2363 case MODULE_CMD_INIT: 2364 DPRINTF(("uvideo: attempting to load\n")); 2365 2366 err = config_cfdriver_attach(&uvideo_cd); 2367 if (err) 2368 return err; 2369 err = config_cfattach_attach("uvideo", &uvideo_ca); 2370 if (err) { 2371 config_cfdriver_detach(&uvideo_cd); 2372 return err; 2373 } 2374 err = config_cfdata_attach(uvideo_cfdata, 1); 2375 if (err) { 2376 config_cfattach_detach("uvideo", &uvideo_ca); 2377 config_cfdriver_detach(&uvideo_cd); 2378 return err; 2379 } 2380 DPRINTF(("uvideo: loaded module\n")); 2381 return 0; 2382 case MODULE_CMD_FINI: 2383 DPRINTF(("uvideo: attempting to unload module\n")); 2384 err = config_cfdata_detach(uvideo_cfdata); 2385 if (err) 2386 return err; 2387 config_cfattach_detach("uvideo", &uvideo_ca); 2388 config_cfdriver_detach(&uvideo_cd); 2389 DPRINTF(("uvideo: module unload\n")); 2390 return 0; 2391 default: 2392 return ENOTTY; 2393 } 2394 } 2395 2396 #endif /* _MODULE */ 2397 2398 2399 #ifdef UVIDEO_DEBUG 2400 /* Some functions to print out descriptors. Mostly useless other than 2401 * debugging/exploration purposes. */ 2402 2403 2404 static void 2405 print_bitmap(const uByte *start, uByte nbytes) 2406 { 2407 int byte, bit; 2408 2409 /* most significant first */ 2410 for (byte = nbytes-1; byte >= 0; --byte) { 2411 if (byte < nbytes-1) printf("-"); 2412 for (bit = 7; bit >= 0; --bit) 2413 printf("%01d", (start[byte] >> bit) &1); 2414 } 2415 } 2416 2417 static void 2418 print_descriptor(const usb_descriptor_t *desc) 2419 { 2420 static int current_class = -1; 2421 static int current_subclass = -1; 2422 2423 if (desc->bDescriptorType == UDESC_INTERFACE) { 2424 const usb_interface_descriptor_t *id; 2425 id = (const usb_interface_descriptor_t *)desc; 2426 current_class = id->bInterfaceClass; 2427 current_subclass = id->bInterfaceSubClass; 2428 print_interface_descriptor(id); 2429 printf("\n"); 2430 return; 2431 } 2432 2433 printf(" "); /* indent */ 2434 2435 if (current_class == UICLASS_VIDEO) { 2436 switch (current_subclass) { 2437 case UISUBCLASS_VIDEOCONTROL: 2438 print_vc_descriptor(desc); 2439 break; 2440 case UISUBCLASS_VIDEOSTREAMING: 2441 print_vs_descriptor(desc); 2442 break; 2443 case UISUBCLASS_VIDEOCOLLECTION: 2444 printf("uvc collection: len=%d type=0x%02x", 2445 desc->bLength, desc->bDescriptorType); 2446 break; 2447 } 2448 } else { 2449 printf("non uvc descriptor len=%d type=0x%02x", 2450 desc->bLength, desc->bDescriptorType); 2451 } 2452 2453 printf("\n"); 2454 } 2455 2456 static void 2457 print_vc_descriptor(const usb_descriptor_t *desc) 2458 { 2459 const uvideo_descriptor_t *vcdesc; 2460 2461 printf("VC "); 2462 2463 switch (desc->bDescriptorType) { 2464 case UDESC_ENDPOINT: 2465 print_endpoint_descriptor( 2466 (const usb_endpoint_descriptor_t *)desc); 2467 break; 2468 case UDESC_CS_INTERFACE: 2469 vcdesc = (const uvideo_descriptor_t *)desc; 2470 switch (vcdesc->bDescriptorSubtype) { 2471 case UDESC_VC_HEADER: 2472 print_vc_header_descriptor( 2473 (const uvideo_vc_header_descriptor_t *) 2474 vcdesc); 2475 break; 2476 case UDESC_INPUT_TERMINAL: 2477 switch (UGETW( 2478 ((const uvideo_input_terminal_descriptor_t *) 2479 vcdesc)->wTerminalType)) { 2480 case UVIDEO_ITT_CAMERA: 2481 print_camera_terminal_descriptor( 2482 (const uvideo_camera_terminal_descriptor_t *)vcdesc); 2483 break; 2484 default: 2485 print_input_terminal_descriptor( 2486 (const uvideo_input_terminal_descriptor_t *)vcdesc); 2487 break; 2488 } 2489 break; 2490 case UDESC_OUTPUT_TERMINAL: 2491 print_output_terminal_descriptor( 2492 (const uvideo_output_terminal_descriptor_t *) 2493 vcdesc); 2494 break; 2495 case UDESC_SELECTOR_UNIT: 2496 print_selector_unit_descriptor( 2497 (const uvideo_selector_unit_descriptor_t *) 2498 vcdesc); 2499 break; 2500 case UDESC_PROCESSING_UNIT: 2501 print_processing_unit_descriptor( 2502 (const uvideo_processing_unit_descriptor_t *) 2503 vcdesc); 2504 break; 2505 case UDESC_EXTENSION_UNIT: 2506 print_extension_unit_descriptor( 2507 (const uvideo_extension_unit_descriptor_t *) 2508 vcdesc); 2509 break; 2510 default: 2511 printf("class specific interface " 2512 "len=%d type=0x%02x subtype=0x%02x", 2513 vcdesc->bLength, 2514 vcdesc->bDescriptorType, 2515 vcdesc->bDescriptorSubtype); 2516 break; 2517 } 2518 break; 2519 case UDESC_CS_ENDPOINT: 2520 vcdesc = (const uvideo_descriptor_t *)desc; 2521 switch (vcdesc->bDescriptorSubtype) { 2522 case UDESC_VC_INTERRUPT_ENDPOINT: 2523 print_interrupt_endpoint_descriptor( 2524 (const uvideo_vc_interrupt_endpoint_descriptor_t *) 2525 vcdesc); 2526 break; 2527 default: 2528 printf("class specific endpoint " 2529 "len=%d type=0x%02x subtype=0x%02x", 2530 vcdesc->bLength, 2531 vcdesc->bDescriptorType, 2532 vcdesc->bDescriptorSubtype); 2533 break; 2534 } 2535 break; 2536 default: 2537 printf("unknown: len=%d type=0x%02x", 2538 desc->bLength, desc->bDescriptorType); 2539 break; 2540 } 2541 } 2542 2543 static void 2544 print_vs_descriptor(const usb_descriptor_t *desc) 2545 { 2546 const uvideo_descriptor_t * vsdesc; 2547 printf("VS "); 2548 2549 switch (desc->bDescriptorType) { 2550 case UDESC_ENDPOINT: 2551 print_endpoint_descriptor( 2552 (const usb_endpoint_descriptor_t *)desc); 2553 break; 2554 case UDESC_CS_INTERFACE: 2555 vsdesc = (const uvideo_descriptor_t *)desc; 2556 switch (vsdesc->bDescriptorSubtype) { 2557 case UDESC_VS_INPUT_HEADER: 2558 print_vs_input_header_descriptor( 2559 (const uvideo_vs_input_header_descriptor_t *) 2560 vsdesc); 2561 break; 2562 case UDESC_VS_OUTPUT_HEADER: 2563 print_vs_output_header_descriptor( 2564 (const uvideo_vs_output_header_descriptor_t *) 2565 vsdesc); 2566 break; 2567 case UDESC_VS_FORMAT_UNCOMPRESSED: 2568 print_vs_format_uncompressed_descriptor( 2569 (const uvideo_vs_format_uncompressed_descriptor_t *) 2570 vsdesc); 2571 break; 2572 case UDESC_VS_FRAME_UNCOMPRESSED: 2573 print_vs_frame_uncompressed_descriptor( 2574 (const uvideo_vs_frame_uncompressed_descriptor_t *) 2575 vsdesc); 2576 break; 2577 case UDESC_VS_FORMAT_MJPEG: 2578 print_vs_format_mjpeg_descriptor( 2579 (const uvideo_vs_format_mjpeg_descriptor_t *) 2580 vsdesc); 2581 break; 2582 case UDESC_VS_FRAME_MJPEG: 2583 print_vs_frame_mjpeg_descriptor( 2584 (const uvideo_vs_frame_mjpeg_descriptor_t *) 2585 vsdesc); 2586 break; 2587 case UDESC_VS_FORMAT_DV: 2588 print_vs_format_dv_descriptor( 2589 (const uvideo_vs_format_dv_descriptor_t *) 2590 vsdesc); 2591 break; 2592 default: 2593 printf("unknown cs interface: len=%d type=0x%02x " 2594 "subtype=0x%02x", 2595 vsdesc->bLength, vsdesc->bDescriptorType, 2596 vsdesc->bDescriptorSubtype); 2597 } 2598 break; 2599 default: 2600 printf("unknown: len=%d type=0x%02x", 2601 desc->bLength, desc->bDescriptorType); 2602 break; 2603 } 2604 } 2605 2606 static void 2607 print_interface_descriptor(const usb_interface_descriptor_t *id) 2608 { 2609 printf("Interface: Len=%d Type=0x%02x " 2610 "bInterfaceNumber=0x%02x " 2611 "bAlternateSetting=0x%02x bNumEndpoints=0x%02x " 2612 "bInterfaceClass=0x%02x bInterfaceSubClass=0x%02x " 2613 "bInterfaceProtocol=0x%02x iInterface=0x%02x", 2614 id->bLength, 2615 id->bDescriptorType, 2616 id->bInterfaceNumber, 2617 id->bAlternateSetting, 2618 id->bNumEndpoints, 2619 id->bInterfaceClass, 2620 id->bInterfaceSubClass, 2621 id->bInterfaceProtocol, 2622 id->iInterface); 2623 } 2624 2625 static void 2626 print_endpoint_descriptor(const usb_endpoint_descriptor_t *desc) 2627 { 2628 printf("Endpoint: Len=%d Type=0x%02x " 2629 "bEndpointAddress=0x%02x ", 2630 desc->bLength, 2631 desc->bDescriptorType, 2632 desc->bEndpointAddress); 2633 printf("bmAttributes="); 2634 print_bitmap(&desc->bmAttributes, 1); 2635 printf(" wMaxPacketSize=%d bInterval=%d", 2636 UGETW(desc->wMaxPacketSize), 2637 desc->bInterval); 2638 } 2639 2640 static void 2641 print_vc_header_descriptor( 2642 const uvideo_vc_header_descriptor_t *desc) 2643 { 2644 printf("Interface Header: " 2645 "Len=%d Type=0x%02x Subtype=0x%02x " 2646 "bcdUVC=%d wTotalLength=%d " 2647 "dwClockFrequency=%u bInCollection=%d", 2648 desc->bLength, 2649 desc->bDescriptorType, 2650 desc->bDescriptorSubtype, 2651 UGETW(desc->bcdUVC), 2652 UGETW(desc->wTotalLength), 2653 UGETDW(desc->dwClockFrequency), 2654 desc->bInCollection); 2655 } 2656 2657 static void 2658 print_input_terminal_descriptor( 2659 const uvideo_input_terminal_descriptor_t *desc) 2660 { 2661 printf("Input Terminal: " 2662 "Len=%d Type=0x%02x Subtype=0x%02x " 2663 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2664 "iTerminal=%d", 2665 desc->bLength, 2666 desc->bDescriptorType, 2667 desc->bDescriptorSubtype, 2668 desc->bTerminalID, 2669 UGETW(desc->wTerminalType), 2670 desc->bAssocTerminal, 2671 desc->iTerminal); 2672 } 2673 2674 static void 2675 print_output_terminal_descriptor( 2676 const uvideo_output_terminal_descriptor_t *desc) 2677 { 2678 printf("Output Terminal: " 2679 "Len=%d Type=0x%02x Subtype=0x%02x " 2680 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2681 "bSourceID=%d iTerminal=%d", 2682 desc->bLength, 2683 desc->bDescriptorType, 2684 desc->bDescriptorSubtype, 2685 desc->bTerminalID, 2686 UGETW(desc->wTerminalType), 2687 desc->bAssocTerminal, 2688 desc->bSourceID, 2689 desc->iTerminal); 2690 } 2691 2692 static void 2693 print_camera_terminal_descriptor( 2694 const uvideo_camera_terminal_descriptor_t *desc) 2695 { 2696 printf("Camera Terminal: " 2697 "Len=%d Type=0x%02x Subtype=0x%02x " 2698 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2699 "iTerminal=%d " 2700 "wObjectiveFocalLengthMin/Max=%d/%d " 2701 "wOcularFocalLength=%d " 2702 "bControlSize=%d ", 2703 desc->bLength, 2704 desc->bDescriptorType, 2705 desc->bDescriptorSubtype, 2706 desc->bTerminalID, 2707 UGETW(desc->wTerminalType), 2708 desc->bAssocTerminal, 2709 desc->iTerminal, 2710 UGETW(desc->wObjectiveFocalLengthMin), 2711 UGETW(desc->wObjectiveFocalLengthMax), 2712 UGETW(desc->wOcularFocalLength), 2713 desc->bControlSize); 2714 printf("bmControls="); 2715 print_bitmap(desc->bmControls, desc->bControlSize); 2716 } 2717 2718 static void 2719 print_selector_unit_descriptor( 2720 const uvideo_selector_unit_descriptor_t *desc) 2721 { 2722 int i; 2723 const uByte *b; 2724 printf("Selector Unit: " 2725 "Len=%d Type=0x%02x Subtype=0x%02x " 2726 "bUnitID=%d bNrInPins=%d ", 2727 desc->bLength, 2728 desc->bDescriptorType, 2729 desc->bDescriptorSubtype, 2730 desc->bUnitID, 2731 desc->bNrInPins); 2732 printf("baSourceIDs="); 2733 b = &desc->baSourceID[0]; 2734 for (i = 0; i < desc->bNrInPins; ++i) 2735 printf("%d ", *b++); 2736 printf("iSelector=%d", *b); 2737 } 2738 2739 static void 2740 print_processing_unit_descriptor( 2741 const uvideo_processing_unit_descriptor_t *desc) 2742 { 2743 const uByte *b; 2744 2745 printf("Processing Unit: " 2746 "Len=%d Type=0x%02x Subtype=0x%02x " 2747 "bUnitID=%d bSourceID=%d wMaxMultiplier=%d bControlSize=%d ", 2748 desc->bLength, 2749 desc->bDescriptorType, 2750 desc->bDescriptorSubtype, 2751 desc->bUnitID, 2752 desc->bSourceID, 2753 UGETW(desc->wMaxMultiplier), 2754 desc->bControlSize); 2755 printf("bmControls="); 2756 print_bitmap(desc->bmControls, desc->bControlSize); 2757 b = &desc->bControlSize + desc->bControlSize + 1; 2758 printf(" iProcessing=%d bmVideoStandards=", *b); 2759 b += 1; 2760 print_bitmap(b, 1); 2761 } 2762 2763 static void 2764 print_extension_unit_descriptor( 2765 const uvideo_extension_unit_descriptor_t *desc) 2766 { 2767 const uByte * byte; 2768 uByte controlbytes; 2769 int i; 2770 2771 printf("Extension Unit: " 2772 "Len=%d Type=0x%02x Subtype=0x%02x " 2773 "bUnitID=%d ", 2774 desc->bLength, 2775 desc->bDescriptorType, 2776 desc->bDescriptorSubtype, 2777 desc->bUnitID); 2778 2779 printf("guidExtensionCode="); 2780 usb_guid_print(&desc->guidExtensionCode); 2781 printf(" "); 2782 2783 printf("bNumControls=%d bNrInPins=%d ", 2784 desc->bNumControls, 2785 desc->bNrInPins); 2786 2787 printf("baSourceIDs="); 2788 byte = &desc->baSourceID[0]; 2789 for (i = 0; i < desc->bNrInPins; ++i) 2790 printf("%d ", *byte++); 2791 2792 controlbytes = *byte++; 2793 printf("bControlSize=%d ", controlbytes); 2794 printf("bmControls="); 2795 print_bitmap(byte, controlbytes); 2796 2797 byte += controlbytes; 2798 printf(" iExtension=%d", *byte); 2799 } 2800 2801 static void 2802 print_interrupt_endpoint_descriptor( 2803 const uvideo_vc_interrupt_endpoint_descriptor_t *desc) 2804 { 2805 printf("Interrupt Endpoint: " 2806 "Len=%d Type=0x%02x Subtype=0x%02x " 2807 "wMaxTransferSize=%d ", 2808 desc->bLength, 2809 desc->bDescriptorType, 2810 desc->bDescriptorSubtype, 2811 UGETW(desc->wMaxTransferSize)); 2812 } 2813 2814 2815 static void 2816 print_vs_output_header_descriptor( 2817 const uvideo_vs_output_header_descriptor_t *desc) 2818 { 2819 printf("Interface Output Header: " 2820 "Len=%d Type=0x%02x Subtype=0x%02x " 2821 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2822 "bTerminalLink=%d bControlSize=%d", 2823 desc->bLength, 2824 desc->bDescriptorType, 2825 desc->bDescriptorSubtype, 2826 desc->bNumFormats, 2827 UGETW(desc->wTotalLength), 2828 desc->bEndpointAddress, 2829 desc->bTerminalLink, 2830 desc->bControlSize); 2831 } 2832 2833 static void 2834 print_vs_input_header_descriptor( 2835 const uvideo_vs_input_header_descriptor_t *desc) 2836 { 2837 printf("Interface Input Header: " 2838 "Len=%d Type=0x%02x Subtype=0x%02x " 2839 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2840 "bmInfo=%x bTerminalLink=%d bStillCaptureMethod=%d " 2841 "bTriggerSupport=%d bTriggerUsage=%d bControlSize=%d ", 2842 desc->bLength, 2843 desc->bDescriptorType, 2844 desc->bDescriptorSubtype, 2845 desc->bNumFormats, 2846 UGETW(desc->wTotalLength), 2847 desc->bEndpointAddress, 2848 desc->bmInfo, 2849 desc->bTerminalLink, 2850 desc->bStillCaptureMethod, 2851 desc->bTriggerSupport, 2852 desc->bTriggerUsage, 2853 desc->bControlSize); 2854 print_bitmap(desc->bmaControls, desc->bControlSize); 2855 } 2856 2857 static void 2858 print_vs_format_uncompressed_descriptor( 2859 const uvideo_vs_format_uncompressed_descriptor_t *desc) 2860 { 2861 printf("Format Uncompressed: " 2862 "Len=%d Type=0x%02x Subtype=0x%02x " 2863 "bFormatIndex=%d bNumFrameDescriptors=%d ", 2864 desc->bLength, 2865 desc->bDescriptorType, 2866 desc->bDescriptorSubtype, 2867 desc->bFormatIndex, 2868 desc->bNumFrameDescriptors); 2869 usb_guid_print(&desc->guidFormat); 2870 printf(" bBitsPerPixel=%d bDefaultFrameIndex=%d " 2871 "bAspectRatioX=%d bAspectRatioY=%d " 2872 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2873 desc->bBitsPerPixel, 2874 desc->bDefaultFrameIndex, 2875 desc->bAspectRatioX, 2876 desc->bAspectRatioY, 2877 desc->bmInterlaceFlags, 2878 desc->bCopyProtect); 2879 } 2880 2881 static void 2882 print_vs_frame_uncompressed_descriptor( 2883 const uvideo_vs_frame_uncompressed_descriptor_t *desc) 2884 { 2885 printf("Frame Uncompressed: " 2886 "Len=%d Type=0x%02x Subtype=0x%02x " 2887 "bFrameIndex=%d bmCapabilities=0x%02x " 2888 "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " 2889 "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " 2890 "bFrameIntervalType=%d", 2891 desc->bLength, 2892 desc->bDescriptorType, 2893 desc->bDescriptorSubtype, 2894 desc->bFrameIndex, 2895 desc->bmCapabilities, 2896 UGETW(desc->wWidth), 2897 UGETW(desc->wHeight), 2898 UGETDW(desc->dwMinBitRate), 2899 UGETDW(desc->dwMaxBitRate), 2900 UGETDW(desc->dwMaxVideoFrameBufferSize), 2901 UGETDW(desc->dwDefaultFrameInterval), 2902 desc->bFrameIntervalType); 2903 } 2904 2905 static void 2906 print_vs_format_mjpeg_descriptor( 2907 const uvideo_vs_format_mjpeg_descriptor_t *desc) 2908 { 2909 printf("MJPEG format: " 2910 "Len=%d Type=0x%02x Subtype=0x%02x " 2911 "bFormatIndex=%d bNumFrameDescriptors=%d bmFlags=0x%02x " 2912 "bDefaultFrameIndex=%d bAspectRatioX=%d bAspectRatioY=%d " 2913 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2914 desc->bLength, 2915 desc->bDescriptorType, 2916 desc->bDescriptorSubtype, 2917 desc->bFormatIndex, 2918 desc->bNumFrameDescriptors, 2919 desc->bmFlags, 2920 desc->bDefaultFrameIndex, 2921 desc->bAspectRatioX, 2922 desc->bAspectRatioY, 2923 desc->bmInterlaceFlags, 2924 desc->bCopyProtect); 2925 } 2926 2927 static void 2928 print_vs_frame_mjpeg_descriptor( 2929 const uvideo_vs_frame_mjpeg_descriptor_t *desc) 2930 { 2931 printf("MJPEG frame: " 2932 "Len=%d Type=0x%02x Subtype=0x%02x " 2933 "bFrameIndex=%d bmCapabilities=0x%02x " 2934 "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " 2935 "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " 2936 "bFrameIntervalType=%d", 2937 desc->bLength, 2938 desc->bDescriptorType, 2939 desc->bDescriptorSubtype, 2940 desc->bFrameIndex, 2941 desc->bmCapabilities, 2942 UGETW(desc->wWidth), 2943 UGETW(desc->wHeight), 2944 UGETDW(desc->dwMinBitRate), 2945 UGETDW(desc->dwMaxBitRate), 2946 UGETDW(desc->dwMaxVideoFrameBufferSize), 2947 UGETDW(desc->dwDefaultFrameInterval), 2948 desc->bFrameIntervalType); 2949 } 2950 2951 static void 2952 print_vs_format_dv_descriptor( 2953 const uvideo_vs_format_dv_descriptor_t *desc) 2954 { 2955 printf("MJPEG format: " 2956 "Len=%d Type=0x%02x Subtype=0x%02x " 2957 "bFormatIndex=%d dwMaxVideoFrameBufferSize=%u " 2958 "bFormatType/Rate=%d bFormatType/Format=%d", 2959 desc->bLength, 2960 desc->bDescriptorType, 2961 desc->bDescriptorSubtype, 2962 desc->bFormatIndex, 2963 UGETDW(desc->dwMaxVideoFrameBufferSize), 2964 UVIDEO_GET_DV_FREQ(desc->bFormatType), 2965 UVIDEO_GET_DV_FORMAT(desc->bFormatType)); 2966 } 2967 2968 #endif /* !UVIDEO_DEBUG */ 2969 2970 static const usb_descriptor_t * 2971 usb_desc_iter_peek_next(usbd_desc_iter_t *iter) 2972 { 2973 const usb_descriptor_t *desc; 2974 2975 if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) { 2976 if (iter->cur != iter->end) 2977 printf("usb_desc_iter_peek_next: bad descriptor\n"); 2978 return NULL; 2979 } 2980 desc = (const usb_descriptor_t *)iter->cur; 2981 if (desc->bLength == 0) { 2982 printf("usb_desc_iter_peek_next: descriptor length = 0\n"); 2983 return NULL; 2984 } 2985 if (iter->cur + desc->bLength > iter->end) { 2986 printf("usb_desc_iter_peek_next: descriptor length too large\n"); 2987 return NULL; 2988 } 2989 return desc; 2990 } 2991 2992 /* Return the next interface descriptor, skipping over any other 2993 * descriptors. Returns NULL at the end or on error. */ 2994 static const usb_interface_descriptor_t * 2995 usb_desc_iter_next_interface(usbd_desc_iter_t *iter) 2996 { 2997 const usb_descriptor_t *desc; 2998 2999 while ((desc = usb_desc_iter_peek_next(iter)) != NULL && 3000 desc->bDescriptorType != UDESC_INTERFACE) 3001 { 3002 usb_desc_iter_next(iter); 3003 } 3004 3005 return (const usb_interface_descriptor_t *)usb_desc_iter_next(iter); 3006 } 3007 3008 /* Returns the next non-interface descriptor, returning NULL when the 3009 * next descriptor would be an interface descriptor. */ 3010 static const usb_descriptor_t * 3011 usb_desc_iter_next_non_interface(usbd_desc_iter_t *iter) 3012 { 3013 const usb_descriptor_t *desc; 3014 3015 if ((desc = usb_desc_iter_peek_next(iter)) != NULL && 3016 desc->bDescriptorType != UDESC_INTERFACE) 3017 { 3018 return (usb_desc_iter_next(iter)); 3019 } else { 3020 return NULL; 3021 } 3022 } 3023 3024 #ifdef UVIDEO_DEBUG 3025 static void 3026 usb_guid_print(const usb_guid_t *guid) 3027 { 3028 printf("%04X-%02X-%02X-", 3029 UGETDW(guid->data1), 3030 UGETW(guid->data2), 3031 UGETW(guid->data3)); 3032 printf("%02X%02X-", 3033 guid->data4[0], 3034 guid->data4[1]); 3035 printf("%02X%02X%02X%02X%02X%02X", 3036 guid->data4[2], 3037 guid->data4[3], 3038 guid->data4[4], 3039 guid->data4[5], 3040 guid->data4[6], 3041 guid->data4[7]); 3042 } 3043 #endif /* !UVIDEO_DEBUG */ 3044 3045 /* Returns less than zero, zero, or greater than zero if uguid is less 3046 * than, equal to, or greater than guid. */ 3047 static int 3048 usb_guid_cmp(const usb_guid_t *uguid, const guid_t *guid) 3049 { 3050 if (guid->data1 > UGETDW(uguid->data1)) 3051 return 1; 3052 else if (guid->data1 < UGETDW(uguid->data1)) 3053 return -1; 3054 3055 if (guid->data2 > UGETW(uguid->data2)) 3056 return 1; 3057 else if (guid->data2 < UGETW(uguid->data2)) 3058 return -1; 3059 3060 if (guid->data3 > UGETW(uguid->data3)) 3061 return 1; 3062 else if (guid->data3 < UGETW(uguid->data3)) 3063 return -1; 3064 3065 return (memcmp(guid->data4, uguid->data4, 8)); 3066 } 3067
Indexes created Wed Oct 22 13:09:56 GMT 2025