uvideo.c revision 1.39
1 /* $NetBSD: uvideo.c,v 1.39 2013/10/17 21:07:37 christos 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 1.39 2013/10/17 21:07:37 christos Exp $"); 46 47 #ifdef _KERNEL_OPT 48 #include "opt_uvideo.h" 49 #endif 50 51 #ifdef _MODULE 52 #include <sys/module.h> 53 #endif 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/kernel.h> 58 /* #include <sys/malloc.h> */ 59 #include <sys/kmem.h> 60 #include <sys/device.h> 61 #include <sys/ioctl.h> 62 #include <sys/uio.h> 63 #include <sys/file.h> 64 #include <sys/select.h> 65 #include <sys/proc.h> 66 #include <sys/conf.h> 67 #include <sys/vnode.h> 68 #include <sys/poll.h> 69 #include <sys/queue.h> /* SLIST */ 70 #include <sys/kthread.h> 71 #include <sys/bus.h> 72 73 #include <sys/videoio.h> 74 #include <dev/video_if.h> 75 76 #include <dev/usb/usb.h> 77 #include <dev/usb/usbdi.h> 78 #include <dev/usb/usbdivar.h> 79 #include <dev/usb/usbdi_util.h> 80 #include <dev/usb/usb_quirks.h> 81 82 #include <dev/usb/uvideoreg.h> 83 84 #define UVIDEO_NXFERS 3 85 #define PRI_UVIDEO PRI_BIO 86 87 /* #define UVIDEO_DISABLE_MJPEG */ 88 89 #ifdef UVIDEO_DEBUG 90 #define DPRINTF(x) do { if (uvideodebug) printf x; } while (0) 91 #define DPRINTFN(n,x) do { if (uvideodebug>(n)) printf x; } while (0) 92 int uvideodebug = 20; 93 #else 94 #define DPRINTF(x) 95 #define DPRINTFN(n,x) 96 #endif 97 98 typedef enum { 99 UVIDEO_STATE_CLOSED, 100 UVIDEO_STATE_OPENING, 101 UVIDEO_STATE_IDLE 102 } uvideo_state; 103 104 struct uvideo_camera_terminal { 105 uint16_t ct_objective_focal_min; 106 uint16_t ct_objective_focal_max; 107 uint16_t ct_ocular_focal_length; 108 }; 109 110 struct uvideo_processing_unit { 111 uint16_t pu_max_multiplier; /* digital zoom */ 112 uint8_t pu_video_standards; 113 }; 114 115 struct uvideo_extension_unit { 116 guid_t xu_guid; 117 }; 118 119 /* For simplicity, we consider a Terminal a special case of Unit 120 * rather than a separate entity. */ 121 struct uvideo_unit { 122 uint8_t vu_id; 123 uint8_t vu_type; 124 uint8_t vu_dst_id; 125 uint8_t vu_nsrcs; 126 union { 127 uint8_t vu_src_id; /* vu_nsrcs = 1 */ 128 uint8_t *vu_src_id_ary; /* vu_nsrcs > 1 */ 129 } s; 130 131 /* fields for individual unit/terminal types */ 132 union { 133 struct uvideo_camera_terminal vu_camera; 134 struct uvideo_processing_unit vu_processing; 135 struct uvideo_extension_unit vu_extension; 136 } u; 137 138 /* Used by camera terminal, processing and extention units. */ 139 uint8_t vu_control_size; /* number of bytes in vu_controls */ 140 uint8_t *vu_controls; /* array of bytes. bits are 141 * numbered from 0 at least 142 * significant bit to 143 * (8*vu_control_size - 1)*/ 144 }; 145 146 struct uvideo_alternate { 147 uint8_t altno; 148 uint8_t interval; 149 uint16_t max_packet_size; 150 SLIST_ENTRY(uvideo_alternate) entries; 151 }; 152 SLIST_HEAD(altlist, uvideo_alternate); 153 154 #define UVIDEO_FORMAT_GET_FORMAT_INDEX(fmt) \ 155 ((fmt)->format.priv & 0xff) 156 #define UVIDEO_FORMAT_GET_FRAME_INDEX(fmt) \ 157 (((fmt)->format.priv >> 8) & 0xff) 158 /* TODO: find a better way to set bytes within this 32 bit value? */ 159 #define UVIDEO_FORMAT_SET_FORMAT_INDEX(fmt, index) do { \ 160 (fmt)->format.priv &= ~0xff; \ 161 (fmt)->format.priv |= ((index) & 0xff); \ 162 } while (0) 163 #define UVIDEO_FORMAT_SET_FRAME_INDEX(fmt, index) do { \ 164 (fmt)->format.priv &= ~(0xff << 8); \ 165 ((fmt)->format.priv |= (((index) & 0xff) << 8)); \ 166 } while (0) 167 168 struct uvideo_pixel_format { 169 enum video_pixel_format pixel_format; 170 SIMPLEQ_ENTRY(uvideo_pixel_format) entries; 171 }; 172 SIMPLEQ_HEAD(uvideo_pixel_format_list, uvideo_pixel_format); 173 174 struct uvideo_format { 175 struct video_format format; 176 SIMPLEQ_ENTRY(uvideo_format) entries; 177 }; 178 SIMPLEQ_HEAD(uvideo_format_list, uvideo_format); 179 180 struct uvideo_isoc_xfer; 181 struct uvideo_stream; 182 183 struct uvideo_isoc { 184 struct uvideo_isoc_xfer *i_ix; 185 struct uvideo_stream *i_vs; 186 usbd_xfer_handle i_xfer; 187 uint8_t *i_buf; 188 uint16_t *i_frlengths; 189 }; 190 191 struct uvideo_isoc_xfer { 192 uint8_t ix_endpt; 193 usbd_pipe_handle ix_pipe; 194 struct uvideo_isoc ix_i[UVIDEO_NXFERS]; 195 uint32_t ix_nframes; 196 uint32_t ix_uframe_len; 197 198 struct altlist ix_altlist; 199 }; 200 201 struct uvideo_bulk_xfer { 202 uint8_t bx_endpt; 203 usbd_pipe_handle bx_pipe; 204 usbd_xfer_handle bx_xfer; 205 uint8_t *bx_buffer; 206 int bx_buflen; 207 bool bx_running; 208 kcondvar_t bx_cv; 209 kmutex_t bx_lock; 210 }; 211 212 struct uvideo_stream { 213 struct uvideo_softc *vs_parent; 214 usbd_interface_handle vs_iface; 215 uint8_t vs_ifaceno; 216 uint8_t vs_subtype; /* input or output */ 217 uint16_t vs_probelen; /* length of probe and 218 * commit data; varies 219 * depending on version 220 * of spec. */ 221 struct uvideo_format_list vs_formats; 222 struct uvideo_pixel_format_list vs_pixel_formats; 223 struct video_format *vs_default_format; 224 struct video_format vs_current_format; 225 226 /* usb transfer details */ 227 uint8_t vs_xfer_type; 228 union { 229 struct uvideo_bulk_xfer bulk; 230 struct uvideo_isoc_xfer isoc; 231 } vs_xfer; 232 233 int vs_frameno; /* toggles between 0 and 1 */ 234 235 /* current video format */ 236 uint32_t vs_max_payload_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 device_t 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_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 char sc_businfo[32]; 262 }; 263 264 int uvideo_match(device_t, cfdata_t, void *); 265 void uvideo_attach(device_t, device_t, void *); 266 int uvideo_detach(device_t, int); 267 void uvideo_childdet(device_t, device_t); 268 int uvideo_activate(device_t, enum devact); 269 270 static int uvideo_open(void *, int); 271 static void uvideo_close(void *); 272 static const char * uvideo_get_devname(void *); 273 static const char * uvideo_get_businfo(void *); 274 275 static int uvideo_enum_format(void *, uint32_t, struct video_format *); 276 static int uvideo_get_format(void *, struct video_format *); 277 static int uvideo_set_format(void *, struct video_format *); 278 static int uvideo_try_format(void *, struct video_format *); 279 static int uvideo_start_transfer(void *); 280 static int uvideo_stop_transfer(void *); 281 282 static int uvideo_get_control_group(void *, 283 struct video_control_group *); 284 static int uvideo_set_control_group(void *, 285 const struct video_control_group *); 286 287 static usbd_status uvideo_init_control( 288 struct uvideo_softc *, 289 const usb_interface_descriptor_t *, 290 usbd_desc_iter_t *); 291 static usbd_status uvideo_init_collection( 292 struct uvideo_softc *, 293 const usb_interface_descriptor_t *, 294 usbd_desc_iter_t *); 295 296 /* Functions for unit & terminal descriptors */ 297 static struct uvideo_unit * uvideo_unit_alloc(const uvideo_descriptor_t *); 298 static usbd_status uvideo_unit_init(struct uvideo_unit *, 299 const uvideo_descriptor_t *); 300 static void uvideo_unit_free(struct uvideo_unit *); 301 static usbd_status uvideo_unit_alloc_controls(struct uvideo_unit *, 302 uint8_t, 303 const uint8_t *); 304 static void uvideo_unit_free_controls(struct uvideo_unit *); 305 static usbd_status uvideo_unit_alloc_sources(struct uvideo_unit *, 306 uint8_t, 307 const uint8_t *); 308 static void uvideo_unit_free_sources(struct uvideo_unit *); 309 310 311 312 313 /* Functions for uvideo_stream, primary unit associated with a video 314 * driver or device file. */ 315 static struct uvideo_stream * uvideo_find_stream(struct uvideo_softc *, 316 uint8_t); 317 #if 0 318 static struct uvideo_format * uvideo_stream_find_format( 319 struct uvideo_stream *, 320 uint8_t, uint8_t); 321 #endif 322 static struct uvideo_format * uvideo_stream_guess_format( 323 struct uvideo_stream *, 324 enum video_pixel_format, uint32_t, uint32_t); 325 static struct uvideo_stream * uvideo_stream_alloc(void); 326 static usbd_status uvideo_stream_init( 327 struct uvideo_stream *stream, 328 struct uvideo_softc *sc, 329 const usb_interface_descriptor_t *ifdesc, 330 uint8_t idx); 331 static usbd_status uvideo_stream_init_desc( 332 struct uvideo_stream *, 333 const usb_interface_descriptor_t *ifdesc, 334 usbd_desc_iter_t *iter); 335 static usbd_status uvideo_stream_init_frame_based_format( 336 struct uvideo_stream *, 337 const uvideo_descriptor_t *, 338 usbd_desc_iter_t *); 339 static void uvideo_stream_free(struct uvideo_stream *); 340 341 static int uvideo_stream_start_xfer(struct uvideo_stream *); 342 static int uvideo_stream_stop_xfer(struct uvideo_stream *); 343 static usbd_status uvideo_stream_recv_process(struct uvideo_stream *, 344 uint8_t *, uint32_t); 345 static usbd_status uvideo_stream_recv_isoc_start(struct uvideo_stream *); 346 static usbd_status uvideo_stream_recv_isoc_start1(struct uvideo_isoc *); 347 static void uvideo_stream_recv_isoc_complete(usbd_xfer_handle, 348 usbd_private_handle, 349 usbd_status); 350 static void uvideo_stream_recv_bulk_transfer(void *); 351 352 /* format probe and commit */ 353 #define uvideo_stream_probe(vs, act, data) \ 354 (uvideo_stream_probe_and_commit((vs), (act), \ 355 UVIDEO_VS_PROBE_CONTROL, (data))) 356 #define uvideo_stream_commit(vs, act, data) \ 357 (uvideo_stream_probe_and_commit((vs), (act), \ 358 UVIDEO_VS_COMMIT_CONTROL, (data))) 359 static usbd_status uvideo_stream_probe_and_commit(struct uvideo_stream *, 360 uint8_t, uint8_t, 361 void *); 362 static void uvideo_init_probe_data(uvideo_probe_and_commit_data_t *); 363 364 365 static const usb_descriptor_t * usb_desc_iter_peek_next(usbd_desc_iter_t *); 366 static const usb_interface_descriptor_t * usb_desc_iter_next_interface( 367 usbd_desc_iter_t *); 368 static const usb_descriptor_t * usb_desc_iter_next_non_interface( 369 usbd_desc_iter_t *); 370 371 static int usb_guid_cmp(const usb_guid_t *, const guid_t *); 372 373 374 CFATTACH_DECL2_NEW(uvideo, sizeof(struct uvideo_softc), 375 uvideo_match, uvideo_attach, uvideo_detach, uvideo_activate, NULL, 376 uvideo_childdet); 377 378 extern struct cfdriver uvideo_cd; 379 380 381 static const struct video_hw_if uvideo_hw_if = { 382 .open = uvideo_open, 383 .close = uvideo_close, 384 .get_devname = uvideo_get_devname, 385 .get_businfo = uvideo_get_businfo, 386 .enum_format = uvideo_enum_format, 387 .get_format = uvideo_get_format, 388 .set_format = uvideo_set_format, 389 .try_format = uvideo_try_format, 390 .start_transfer = uvideo_start_transfer, 391 .stop_transfer = uvideo_stop_transfer, 392 .control_iter_init = NULL, 393 .control_iter_next = NULL, 394 .get_control_desc_group = NULL, 395 .get_control_group = uvideo_get_control_group, 396 .set_control_group = uvideo_set_control_group, 397 }; 398 399 #ifdef UVIDEO_DEBUG 400 /* Some functions to print out descriptors. Mostly useless other than 401 * debugging/exploration purposes. */ 402 static void usb_guid_print(const usb_guid_t *); 403 static void print_descriptor(const usb_descriptor_t *); 404 static void print_interface_descriptor(const usb_interface_descriptor_t *); 405 static void print_endpoint_descriptor(const usb_endpoint_descriptor_t *); 406 407 static void print_vc_descriptor(const usb_descriptor_t *); 408 static void print_vs_descriptor(const usb_descriptor_t *); 409 410 static void print_vc_header_descriptor( 411 const uvideo_vc_header_descriptor_t *); 412 static void print_input_terminal_descriptor( 413 const uvideo_input_terminal_descriptor_t *); 414 static void print_output_terminal_descriptor( 415 const uvideo_output_terminal_descriptor_t *); 416 static void print_camera_terminal_descriptor( 417 const uvideo_camera_terminal_descriptor_t *); 418 static void print_selector_unit_descriptor( 419 const uvideo_selector_unit_descriptor_t *); 420 static void print_processing_unit_descriptor( 421 const uvideo_processing_unit_descriptor_t *); 422 static void print_extension_unit_descriptor( 423 const uvideo_extension_unit_descriptor_t *); 424 static void print_interrupt_endpoint_descriptor( 425 const uvideo_vc_interrupt_endpoint_descriptor_t *); 426 427 static void print_vs_input_header_descriptor( 428 const uvideo_vs_input_header_descriptor_t *); 429 static void print_vs_output_header_descriptor( 430 const uvideo_vs_output_header_descriptor_t *); 431 432 static void print_vs_format_uncompressed_descriptor( 433 const uvideo_vs_format_uncompressed_descriptor_t *); 434 static void print_vs_frame_uncompressed_descriptor( 435 const uvideo_vs_frame_uncompressed_descriptor_t *); 436 static void print_vs_format_mjpeg_descriptor( 437 const uvideo_vs_format_mjpeg_descriptor_t *); 438 static void print_vs_frame_mjpeg_descriptor( 439 const uvideo_vs_frame_mjpeg_descriptor_t *); 440 static void print_vs_format_dv_descriptor( 441 const uvideo_vs_format_dv_descriptor_t *); 442 #endif /* !UVIDEO_DEBUG */ 443 444 #define GET(type, descp, field) (((const type *)(descp))->field) 445 #define GETP(type, descp, field) (&(((const type *)(descp))->field)) 446 447 /* Given a format descriptor and frame descriptor, copy values common 448 * to all formats into a struct uvideo_format. */ 449 #define UVIDEO_FORMAT_INIT_FRAME_BASED(format_type, format_desc, \ 450 frame_type, frame_desc, \ 451 format) \ 452 do { \ 453 UVIDEO_FORMAT_SET_FORMAT_INDEX( \ 454 format, \ 455 GET(format_type, format_desc, bFormatIndex)); \ 456 UVIDEO_FORMAT_SET_FRAME_INDEX( \ 457 format, \ 458 GET(frame_type, frame_desc, bFrameIndex)); \ 459 format->format.width = \ 460 UGETW(GET(frame_type, frame_desc, wWidth)); \ 461 format->format.height = \ 462 UGETW(GET(frame_type, frame_desc, wHeight)); \ 463 format->format.aspect_x = \ 464 GET(format_type, format_desc, bAspectRatioX); \ 465 format->format.aspect_y = \ 466 GET(format_type, format_desc, bAspectRatioY); \ 467 } while (0) 468 469 470 int 471 uvideo_match(device_t parent, cfdata_t match, void *aux) 472 { 473 struct usbif_attach_arg *uaa = aux; 474 475 /* TODO: May need to change in the future to work with 476 * Interface Association Descriptor. */ 477 478 /* Trigger on the Video Control Interface which must be present */ 479 if (uaa->class == UICLASS_VIDEO && 480 uaa->subclass == UISUBCLASS_VIDEOCONTROL) 481 return UMATCH_IFACECLASS_IFACESUBCLASS; 482 483 return UMATCH_NONE; 484 } 485 486 void 487 uvideo_attach(device_t parent, device_t self, void *aux) 488 { 489 struct uvideo_softc *sc = device_private(self); 490 struct usbif_attach_arg *uaa = aux; 491 usbd_desc_iter_t iter; 492 const usb_interface_descriptor_t *ifdesc; 493 struct uvideo_stream *vs; 494 usbd_status err; 495 uint8_t ifaceidx; 496 497 sc->sc_dev = self; 498 499 sc->sc_devname = usbd_devinfo_alloc(uaa->device, 0); 500 501 aprint_naive("\n"); 502 aprint_normal(": %s\n", sc->sc_devname); 503 504 sc->sc_udev = uaa->device; 505 sc->sc_iface = uaa->iface; 506 sc->sc_ifaceno = uaa->ifaceno; 507 sc->sc_dying = 0; 508 sc->sc_state = UVIDEO_STATE_CLOSED; 509 SLIST_INIT(&sc->sc_stream_list); 510 snprintf(sc->sc_businfo, sizeof(sc->sc_businfo), "usb:%08x", 511 sc->sc_udev->cookie.cookie); 512 513 #ifdef UVIDEO_DEBUG 514 /* Debugging dump of descriptors. TODO: move this to userspace 515 * via a custom IOCTL or something. */ 516 const usb_descriptor_t *desc; 517 usb_desc_iter_init(sc->sc_udev, &iter); 518 while ((desc = usb_desc_iter_next(&iter)) != NULL) { 519 /* print out all descriptors */ 520 printf("uvideo_attach: "); 521 print_descriptor(desc); 522 } 523 #endif /* !UVIDEO_DEBUG */ 524 525 /* iterate through interface descriptors and initialize softc */ 526 usb_desc_iter_init(sc->sc_udev, &iter); 527 for (ifaceidx = 0; 528 (ifdesc = usb_desc_iter_next_interface(&iter)) != NULL; 529 ++ifaceidx) 530 { 531 if (ifdesc->bInterfaceClass != UICLASS_VIDEO) { 532 DPRINTFN(50, ("uvideo_attach: " 533 "ignoring non-uvc interface: " 534 "len=%d type=0x%02x " 535 "class=0x%02x subclass=0x%02x\n", 536 ifdesc->bLength, 537 ifdesc->bDescriptorType, 538 ifdesc->bInterfaceClass, 539 ifdesc->bInterfaceSubClass)); 540 continue; 541 } 542 543 switch (ifdesc->bInterfaceSubClass) { 544 case UISUBCLASS_VIDEOCONTROL: 545 err = uvideo_init_control(sc, ifdesc, &iter); 546 if (err != USBD_NORMAL_COMPLETION) { 547 DPRINTF(("uvideo_attach: error with interface " 548 "%d, VideoControl, " 549 "descriptor len=%d type=0x%02x: " 550 "%s (%d)\n", 551 ifdesc->bInterfaceNumber, 552 ifdesc->bLength, 553 ifdesc->bDescriptorType, 554 usbd_errstr(err), err)); 555 } 556 break; 557 case UISUBCLASS_VIDEOSTREAMING: 558 vs = uvideo_find_stream(sc, ifdesc->bInterfaceNumber); 559 if (vs == NULL) { 560 vs = uvideo_stream_alloc(); 561 if (vs == NULL) { 562 DPRINTF(("uvideo_attach: " 563 "failed to alloc stream\n")); 564 err = USBD_NOMEM; 565 goto bad; 566 } 567 err = uvideo_stream_init(vs, sc, ifdesc, 568 ifaceidx); 569 if (err != USBD_NORMAL_COMPLETION) { 570 DPRINTF(("uvideo_attach: " 571 "error initializing stream: " 572 "%s (%d)\n", 573 usbd_errstr(err), err)); 574 goto bad; 575 } 576 } 577 err = uvideo_stream_init_desc(vs, ifdesc, &iter); 578 if (err != USBD_NORMAL_COMPLETION) { 579 DPRINTF(("uvideo_attach: " 580 "error initializing stream descriptor: " 581 "%s (%d)\n", 582 usbd_errstr(err), err)); 583 goto bad; 584 } 585 /* TODO: for now, set (each) stream to stream_in. */ 586 sc->sc_stream_in = vs; 587 break; 588 case UISUBCLASS_VIDEOCOLLECTION: 589 err = uvideo_init_collection(sc, ifdesc, &iter); 590 if (err != USBD_NORMAL_COMPLETION) { 591 DPRINTF(("uvideo_attach: error with interface " 592 "%d, VideoCollection, " 593 "descriptor len=%d type=0x%02x: " 594 "%s (%d)\n", 595 ifdesc->bInterfaceNumber, 596 ifdesc->bLength, 597 ifdesc->bDescriptorType, 598 usbd_errstr(err), err)); 599 goto bad; 600 } 601 break; 602 default: 603 DPRINTF(("uvideo_attach: unknown UICLASS_VIDEO " 604 "subclass=0x%02x\n", 605 ifdesc->bInterfaceSubClass)); 606 break; 607 } 608 609 } 610 611 612 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 613 sc->sc_dev); 614 615 if (!pmf_device_register(self, NULL, NULL)) 616 aprint_error_dev(self, "couldn't establish power handler\n"); 617 618 sc->sc_videodev = video_attach_mi(&uvideo_hw_if, sc->sc_dev); 619 DPRINTF(("uvideo_attach: attached video driver at %p\n", 620 sc->sc_videodev)); 621 622 return; 623 624 bad: 625 if (err != USBD_NORMAL_COMPLETION) { 626 DPRINTF(("uvideo_attach: error: %s (%d)\n", 627 usbd_errstr(err), err)); 628 } 629 return; 630 } 631 632 633 int 634 uvideo_activate(device_t self, enum devact act) 635 { 636 struct uvideo_softc *sc = device_private(self); 637 638 switch (act) { 639 case DVACT_DEACTIVATE: 640 DPRINTF(("uvideo_activate: deactivating\n")); 641 sc->sc_dying = 1; 642 return 0; 643 default: 644 return EOPNOTSUPP; 645 } 646 } 647 648 649 /* Detach child (video interface) */ 650 void 651 uvideo_childdet(device_t self, device_t child) 652 { 653 struct uvideo_softc *sc = device_private(self); 654 655 KASSERT(sc->sc_videodev == child); 656 sc->sc_videodev = NULL; 657 } 658 659 660 int 661 uvideo_detach(device_t self, int flags) 662 { 663 struct uvideo_softc *sc; 664 struct uvideo_stream *vs; 665 int rv; 666 667 sc = device_private(self); 668 rv = 0; 669 670 sc->sc_dying = 1; 671 672 pmf_device_deregister(self); 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_stop_xfer(vs); 681 uvideo_stream_free(vs); 682 } 683 684 #if 0 685 /* Wait for outstanding request to complete. TODO: what is 686 * appropriate here? */ 687 usbd_delay_ms(sc->sc_udev, 1000); 688 #endif 689 690 DPRINTFN(15, ("uvideo: detaching from %s\n", 691 device_xname(sc->sc_dev))); 692 693 if (sc->sc_videodev != NULL) 694 rv = config_detach(sc->sc_videodev, flags); 695 696 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 697 sc->sc_dev); 698 699 usbd_devinfo_free(sc->sc_devname); 700 701 return rv; 702 } 703 704 /* Search the stream list for a stream matching the interface number. 705 * This is an O(n) search, but most devices should have only one or at 706 * most two streams. */ 707 static struct uvideo_stream * 708 uvideo_find_stream(struct uvideo_softc *sc, uint8_t ifaceno) 709 { 710 struct uvideo_stream *vs; 711 712 SLIST_FOREACH(vs, &sc->sc_stream_list, entries) { 713 if (vs->vs_ifaceno == ifaceno) 714 return vs; 715 } 716 717 return NULL; 718 } 719 720 /* Search the format list for the given format and frame index. This 721 * might be improved through indexing, but the format and frame count 722 * is unknown ahead of time (only after iterating through the 723 * usb device descriptors). */ 724 #if 0 725 static struct uvideo_format * 726 uvideo_stream_find_format(struct uvideo_stream *vs, 727 uint8_t format_index, uint8_t frame_index) 728 { 729 struct uvideo_format *format; 730 731 SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { 732 if (UVIDEO_FORMAT_GET_FORMAT_INDEX(format) == format_index && 733 UVIDEO_FORMAT_GET_FRAME_INDEX(format) == frame_index) 734 return format; 735 } 736 return NULL; 737 } 738 #endif 739 740 static struct uvideo_format * 741 uvideo_stream_guess_format(struct uvideo_stream *vs, 742 enum video_pixel_format pixel_format, 743 uint32_t width, uint32_t height) 744 { 745 struct uvideo_format *format, *gformat = NULL; 746 747 SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { 748 if (format->format.pixel_format != pixel_format) 749 continue; 750 if (format->format.width <= width && 751 format->format.height <= height) { 752 if (gformat == NULL || 753 (gformat->format.width < format->format.width && 754 gformat->format.height < format->format.height)) 755 gformat = format; 756 } 757 } 758 759 return gformat; 760 } 761 762 static struct uvideo_stream * 763 uvideo_stream_alloc(void) 764 { 765 return (kmem_alloc(sizeof(struct uvideo_stream), KM_NOSLEEP)); 766 } 767 768 769 static usbd_status 770 uvideo_init_control(struct uvideo_softc *sc, 771 const usb_interface_descriptor_t *ifdesc, 772 usbd_desc_iter_t *iter) 773 { 774 const usb_descriptor_t *desc; 775 const uvideo_descriptor_t *uvdesc; 776 usbd_desc_iter_t orig; 777 uint8_t i, j, nunits; 778 779 /* save original iterator state */ 780 memcpy(&orig, iter, sizeof(orig)); 781 782 /* count number of units and terminals */ 783 nunits = 0; 784 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 785 uvdesc = (const uvideo_descriptor_t *)desc; 786 787 if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) 788 continue; 789 if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || 790 uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) 791 continue; 792 ++nunits; 793 } 794 795 if (nunits == 0) { 796 DPRINTF(("uvideo_init_control: no units\n")); 797 return USBD_NORMAL_COMPLETION; 798 } 799 800 /* allocate space for units */ 801 sc->sc_nunits = nunits; 802 sc->sc_unit = kmem_alloc(sizeof(*sc->sc_unit) * nunits, KM_SLEEP); 803 if (sc->sc_unit == NULL) 804 goto enomem; 805 806 /* restore original iterator state */ 807 memcpy(iter, &orig, sizeof(orig)); 808 809 /* iterate again, initializing the units */ 810 i = 0; 811 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 812 uvdesc = (const uvideo_descriptor_t *)desc; 813 814 if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) 815 continue; 816 if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || 817 uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) 818 continue; 819 820 sc->sc_unit[i] = uvideo_unit_alloc(uvdesc); 821 /* TODO: free other units before returning? */ 822 if (sc->sc_unit[i] == NULL) 823 goto enomem; 824 ++i; 825 } 826 827 return USBD_NORMAL_COMPLETION; 828 829 enomem: 830 if (sc->sc_unit != NULL) { 831 for (j = 0; j < i; ++j) { 832 uvideo_unit_free(sc->sc_unit[j]); 833 sc->sc_unit[j] = NULL; 834 } 835 kmem_free(sc->sc_unit, sizeof(*sc->sc_unit) * nunits); 836 sc->sc_unit = NULL; 837 } 838 sc->sc_nunits = 0; 839 840 return USBD_NOMEM; 841 } 842 843 static usbd_status 844 uvideo_init_collection(struct uvideo_softc *sc, 845 const usb_interface_descriptor_t *ifdesc, 846 usbd_desc_iter_t *iter) 847 { 848 DPRINTF(("uvideo: ignoring Video Collection\n")); 849 return USBD_NORMAL_COMPLETION; 850 } 851 852 /* Allocates space for and initializes a uvideo unit based on the 853 * given descriptor. Returns NULL with bad descriptor or ENOMEM. */ 854 static struct uvideo_unit * 855 uvideo_unit_alloc(const uvideo_descriptor_t *desc) 856 { 857 struct uvideo_unit *vu; 858 usbd_status err; 859 860 if (desc->bDescriptorType != UDESC_CS_INTERFACE) 861 return NULL; 862 863 vu = kmem_alloc(sizeof(*vu), KM_SLEEP); 864 if (vu == NULL) 865 return NULL; 866 867 err = uvideo_unit_init(vu, desc); 868 if (err != USBD_NORMAL_COMPLETION) { 869 DPRINTF(("uvideo_unit_alloc: error initializing unit: " 870 "%s (%d)\n", usbd_errstr(err), err)); 871 kmem_free(vu, sizeof(*vu)); 872 return NULL; 873 } 874 875 return vu; 876 } 877 878 static usbd_status 879 uvideo_unit_init(struct uvideo_unit *vu, const uvideo_descriptor_t *desc) 880 { 881 struct uvideo_camera_terminal *ct; 882 struct uvideo_processing_unit *pu; 883 884 const uvideo_input_terminal_descriptor_t *input; 885 const uvideo_camera_terminal_descriptor_t *camera; 886 const uvideo_selector_unit_descriptor_t *selector; 887 const uvideo_processing_unit_descriptor_t *processing; 888 const uvideo_extension_unit_descriptor_t *extension; 889 890 memset(vu, 0, sizeof(*vu)); 891 892 switch (desc->bDescriptorSubtype) { 893 case UDESC_INPUT_TERMINAL: 894 input = (const uvideo_input_terminal_descriptor_t *)desc; 895 switch (UGETW(input->wTerminalType)) { 896 case UVIDEO_ITT_CAMERA: 897 camera = 898 (const uvideo_camera_terminal_descriptor_t *)desc; 899 ct = &vu->u.vu_camera; 900 901 ct->ct_objective_focal_min = 902 UGETW(camera->wObjectiveFocalLengthMin); 903 ct->ct_objective_focal_max = 904 UGETW(camera->wObjectiveFocalLengthMax); 905 ct->ct_ocular_focal_length = 906 UGETW(camera->wOcularFocalLength); 907 908 uvideo_unit_alloc_controls(vu, camera->bControlSize, 909 camera->bmControls); 910 break; 911 default: 912 DPRINTF(("uvideo_unit_init: " 913 "unknown input terminal type 0x%04x\n", 914 UGETW(input->wTerminalType))); 915 return USBD_INVAL; 916 } 917 break; 918 case UDESC_OUTPUT_TERMINAL: 919 break; 920 case UDESC_SELECTOR_UNIT: 921 selector = (const uvideo_selector_unit_descriptor_t *)desc; 922 923 uvideo_unit_alloc_sources(vu, selector->bNrInPins, 924 selector->baSourceID); 925 break; 926 case UDESC_PROCESSING_UNIT: 927 processing = (const uvideo_processing_unit_descriptor_t *)desc; 928 pu = &vu->u.vu_processing; 929 930 pu->pu_video_standards = PU_GET_VIDEO_STANDARDS(processing); 931 pu->pu_max_multiplier = UGETW(processing->wMaxMultiplier); 932 933 uvideo_unit_alloc_sources(vu, 1, &processing->bSourceID); 934 uvideo_unit_alloc_controls(vu, processing->bControlSize, 935 processing->bmControls); 936 break; 937 case UDESC_EXTENSION_UNIT: 938 extension = (const uvideo_extension_unit_descriptor_t *)desc; 939 /* TODO: copy guid */ 940 941 uvideo_unit_alloc_sources(vu, extension->bNrInPins, 942 extension->baSourceID); 943 uvideo_unit_alloc_controls(vu, XU_GET_CONTROL_SIZE(extension), 944 XU_GET_CONTROLS(extension)); 945 break; 946 default: 947 DPRINTF(("uvideo_unit_alloc: unknown descriptor " 948 "type=0x%02x subtype=0x%02x\n", 949 desc->bDescriptorType, desc->bDescriptorSubtype)); 950 return USBD_INVAL; 951 } 952 953 return USBD_NORMAL_COMPLETION; 954 } 955 956 static void 957 uvideo_unit_free(struct uvideo_unit *vu) 958 { 959 uvideo_unit_free_sources(vu); 960 uvideo_unit_free_controls(vu); 961 kmem_free(vu, sizeof(*vu)); 962 } 963 964 static usbd_status 965 uvideo_unit_alloc_sources(struct uvideo_unit *vu, 966 uint8_t nsrcs, const uint8_t *src_ids) 967 { 968 vu->vu_nsrcs = nsrcs; 969 970 if (nsrcs == 0) { 971 /* do nothing */ 972 } else if (nsrcs == 1) { 973 vu->s.vu_src_id = src_ids[0]; 974 } else { 975 vu->s.vu_src_id_ary = 976 kmem_alloc(sizeof(*vu->s.vu_src_id_ary) * nsrcs, KM_SLEEP); 977 if (vu->s.vu_src_id_ary == NULL) { 978 vu->vu_nsrcs = 0; 979 return USBD_NOMEM; 980 } 981 982 memcpy(vu->s.vu_src_id_ary, src_ids, nsrcs); 983 } 984 985 return USBD_NORMAL_COMPLETION; 986 } 987 988 static void 989 uvideo_unit_free_sources(struct uvideo_unit *vu) 990 { 991 if (vu->vu_nsrcs == 1) 992 return; 993 994 kmem_free(vu->s.vu_src_id_ary, 995 sizeof(*vu->s.vu_src_id_ary) * vu->vu_nsrcs); 996 vu->vu_nsrcs = 0; 997 vu->s.vu_src_id_ary = NULL; 998 } 999 1000 static usbd_status 1001 uvideo_unit_alloc_controls(struct uvideo_unit *vu, uint8_t size, 1002 const uint8_t *controls) 1003 { 1004 vu->vu_controls = kmem_alloc(sizeof(*vu->vu_controls) * size, KM_SLEEP); 1005 if (vu->vu_controls == NULL) 1006 return USBD_NOMEM; 1007 1008 vu->vu_control_size = size; 1009 memcpy(vu->vu_controls, controls, size); 1010 1011 return USBD_NORMAL_COMPLETION; 1012 } 1013 1014 static void 1015 uvideo_unit_free_controls(struct uvideo_unit *vu) 1016 { 1017 kmem_free(vu->vu_controls, 1018 sizeof(*vu->vu_controls) * vu->vu_control_size); 1019 vu->vu_controls = NULL; 1020 vu->vu_control_size = 0; 1021 } 1022 1023 1024 /* Initialize a stream from a Video Streaming interface 1025 * descriptor. Adds the stream to the stream_list in uvideo_softc. 1026 * This should be called once for new streams, and 1027 * uvideo_stream_init_desc() should then be called for this and each 1028 * additional interface with the same interface number. */ 1029 static usbd_status 1030 uvideo_stream_init(struct uvideo_stream *vs, 1031 struct uvideo_softc *sc, 1032 const usb_interface_descriptor_t *ifdesc, 1033 uint8_t idx) 1034 { 1035 uWord len; 1036 usbd_status err; 1037 1038 SLIST_INSERT_HEAD(&sc->sc_stream_list, vs, entries); 1039 memset(vs, 0, sizeof(*vs)); 1040 vs->vs_parent = sc; 1041 vs->vs_ifaceno = ifdesc->bInterfaceNumber; 1042 vs->vs_subtype = 0; 1043 SIMPLEQ_INIT(&vs->vs_formats); 1044 SIMPLEQ_INIT(&vs->vs_pixel_formats); 1045 vs->vs_default_format = NULL; 1046 vs->vs_current_format.priv = -1; 1047 vs->vs_xfer_type = 0; 1048 1049 err = usbd_device2interface_handle(sc->sc_udev, idx, &vs->vs_iface); 1050 if (err != USBD_NORMAL_COMPLETION) { 1051 DPRINTF(("uvideo_stream_init: " 1052 "error getting vs interface: " 1053 "%s (%d)\n", 1054 usbd_errstr(err), err)); 1055 return err; 1056 } 1057 1058 /* For Xbox Live Vision camera, linux-uvc folk say we need to 1059 * set an alternate interface and wait ~3 seconds prior to 1060 * doing the format probe/commit. We set to alternate 1061 * interface 0, which is the default, zero bandwidth 1062 * interface. This should not have adverse affects on other 1063 * cameras. Errors are ignored. */ 1064 err = usbd_set_interface(vs->vs_iface, 0); 1065 if (err != USBD_NORMAL_COMPLETION) { 1066 DPRINTF(("uvideo_stream_init: error setting alt interface: " 1067 "%s (%d)\n", 1068 usbd_errstr(err), err)); 1069 } 1070 1071 /* Initialize probe and commit data size. This value is 1072 * dependent on the version of the spec the hardware 1073 * implements. */ 1074 err = uvideo_stream_probe(vs, UR_GET_LEN, &len); 1075 if (err != USBD_NORMAL_COMPLETION) { 1076 DPRINTF(("uvideo_stream_init: " 1077 "error getting probe data len: " 1078 "%s (%d)\n", 1079 usbd_errstr(err), err)); 1080 vs->vs_probelen = 26; /* conservative v1.0 length */ 1081 } else if (UGETW(len) <= sizeof(uvideo_probe_and_commit_data_t)) { 1082 DPRINTFN(15,("uvideo_stream_init: probelen=%d\n", UGETW(len))); 1083 vs->vs_probelen = UGETW(len); 1084 } else { 1085 DPRINTFN(15,("uvideo_stream_init: device returned invalid probe" 1086 " len %d, using default\n", UGETW(len))); 1087 vs->vs_probelen = 26; 1088 } 1089 1090 return USBD_NORMAL_COMPLETION; 1091 } 1092 1093 /* Further stream initialization based on a Video Streaming interface 1094 * descriptor and following descriptors belonging to that interface. 1095 * Iterates through all descriptors belonging to this particular 1096 * interface descriptor, modifying the iterator. This may be called 1097 * multiple times because there may be several alternate interfaces 1098 * associated with the same interface number. */ 1099 static usbd_status 1100 uvideo_stream_init_desc(struct uvideo_stream *vs, 1101 const usb_interface_descriptor_t *ifdesc, 1102 usbd_desc_iter_t *iter) 1103 { 1104 const usb_descriptor_t *desc; 1105 const uvideo_descriptor_t *uvdesc; 1106 struct uvideo_bulk_xfer *bx; 1107 struct uvideo_isoc_xfer *ix; 1108 struct uvideo_alternate *alt; 1109 uint8_t xfer_type, xfer_dir; 1110 uint8_t bmAttributes, bEndpointAddress; 1111 int i; 1112 1113 /* Iterate until the next interface descriptor. All 1114 * descriptors until then belong to this streaming 1115 * interface. */ 1116 while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { 1117 uvdesc = (const uvideo_descriptor_t *)desc; 1118 1119 switch (uvdesc->bDescriptorType) { 1120 case UDESC_ENDPOINT: 1121 bmAttributes = GET(usb_endpoint_descriptor_t, 1122 desc, bmAttributes); 1123 bEndpointAddress = GET(usb_endpoint_descriptor_t, 1124 desc, bEndpointAddress); 1125 xfer_type = UE_GET_XFERTYPE(bmAttributes); 1126 xfer_dir = UE_GET_DIR(bEndpointAddress); 1127 if (xfer_type == UE_BULK && xfer_dir == UE_DIR_IN) { 1128 bx = &vs->vs_xfer.bulk; 1129 if (vs->vs_xfer_type == 0) { 1130 DPRINTFN(15, ("uvideo_attach: " 1131 "BULK stream *\n")); 1132 vs->vs_xfer_type = UE_BULK; 1133 bx->bx_endpt = bEndpointAddress; 1134 DPRINTF(("uvideo_attach: BULK " 1135 "endpoint %x\n", 1136 bx->bx_endpt)); 1137 bx->bx_running = false; 1138 cv_init(&bx->bx_cv, 1139 device_xname(vs->vs_parent->sc_dev) 1140 ); 1141 mutex_init(&bx->bx_lock, 1142 MUTEX_DEFAULT, IPL_NONE); 1143 } 1144 } else if (xfer_type == UE_ISOCHRONOUS) { 1145 ix = &vs->vs_xfer.isoc; 1146 for (i = 0; i < UVIDEO_NXFERS; i++) { 1147 ix->ix_i[i].i_ix = ix; 1148 ix->ix_i[i].i_vs = vs; 1149 } 1150 if (vs->vs_xfer_type == 0) { 1151 DPRINTFN(15, ("uvideo_attach: " 1152 "ISOC stream *\n")); 1153 SLIST_INIT(&ix->ix_altlist); 1154 vs->vs_xfer_type = UE_ISOCHRONOUS; 1155 ix->ix_endpt = 1156 GET(usb_endpoint_descriptor_t, 1157 desc, bEndpointAddress); 1158 } 1159 1160 alt = kmem_alloc(sizeof(*alt), KM_NOSLEEP); 1161 if (alt == NULL) 1162 return USBD_NOMEM; 1163 1164 alt->altno = ifdesc->bAlternateSetting; 1165 alt->interval = 1166 GET(usb_endpoint_descriptor_t, 1167 desc, bInterval); 1168 1169 alt->max_packet_size = 1170 UE_GET_SIZE(UGETW(GET(usb_endpoint_descriptor_t, 1171 desc, wMaxPacketSize))); 1172 alt->max_packet_size *= 1173 (UE_GET_TRANS(UGETW(GET( 1174 usb_endpoint_descriptor_t, desc, 1175 wMaxPacketSize)))) + 1; 1176 1177 SLIST_INSERT_HEAD(&ix->ix_altlist, 1178 alt, entries); 1179 } 1180 break; 1181 case UDESC_CS_INTERFACE: 1182 if (ifdesc->bAlternateSetting != 0) { 1183 DPRINTF(("uvideo_stream_init_alternate: " 1184 "unexpected class-specific descriptor " 1185 "len=%d type=0x%02x subtype=0x%02x\n", 1186 uvdesc->bLength, 1187 uvdesc->bDescriptorType, 1188 uvdesc->bDescriptorSubtype)); 1189 break; 1190 } 1191 1192 switch (uvdesc->bDescriptorSubtype) { 1193 case UDESC_VS_INPUT_HEADER: 1194 vs->vs_subtype = UDESC_VS_INPUT_HEADER; 1195 break; 1196 case UDESC_VS_OUTPUT_HEADER: 1197 /* TODO: handle output stream */ 1198 DPRINTF(("uvideo: VS output not implemented\n")); 1199 vs->vs_subtype = UDESC_VS_OUTPUT_HEADER; 1200 return USBD_INVAL; 1201 case UDESC_VS_FORMAT_UNCOMPRESSED: 1202 case UDESC_VS_FORMAT_FRAME_BASED: 1203 case UDESC_VS_FORMAT_MJPEG: 1204 uvideo_stream_init_frame_based_format(vs, 1205 uvdesc, 1206 iter); 1207 break; 1208 case UDESC_VS_FORMAT_MPEG2TS: 1209 case UDESC_VS_FORMAT_DV: 1210 case UDESC_VS_FORMAT_STREAM_BASED: 1211 default: 1212 DPRINTF(("uvideo: unimplemented VS CS " 1213 "descriptor len=%d type=0x%02x " 1214 "subtype=0x%02x\n", 1215 uvdesc->bLength, 1216 uvdesc->bDescriptorType, 1217 uvdesc->bDescriptorSubtype)); 1218 break; 1219 } 1220 break; 1221 default: 1222 DPRINTF(("uvideo_stream_init_desc: " 1223 "unknown descriptor " 1224 "len=%d type=0x%02x\n", 1225 uvdesc->bLength, 1226 uvdesc->bDescriptorType)); 1227 break; 1228 } 1229 } 1230 1231 return USBD_NORMAL_COMPLETION; 1232 } 1233 1234 /* Finialize and free memory associated with this stream. */ 1235 static void 1236 uvideo_stream_free(struct uvideo_stream *vs) 1237 { 1238 struct uvideo_alternate *alt; 1239 struct uvideo_pixel_format *pixel_format; 1240 struct uvideo_format *format; 1241 1242 /* free linked list of alternate interfaces */ 1243 if (vs->vs_xfer_type == UE_ISOCHRONOUS) { 1244 while (!SLIST_EMPTY(&vs->vs_xfer.isoc.ix_altlist)) { 1245 alt = SLIST_FIRST(&vs->vs_xfer.isoc.ix_altlist); 1246 SLIST_REMOVE_HEAD(&vs->vs_xfer.isoc.ix_altlist, 1247 entries); 1248 kmem_free(alt, sizeof(*alt)); 1249 } 1250 } 1251 1252 /* free linked-list of formats and pixel formats */ 1253 while ((format = SIMPLEQ_FIRST(&vs->vs_formats)) != NULL) { 1254 SIMPLEQ_REMOVE_HEAD(&vs->vs_formats, entries); 1255 kmem_free(format, sizeof(struct uvideo_format)); 1256 } 1257 while ((pixel_format = SIMPLEQ_FIRST(&vs->vs_pixel_formats)) != NULL) { 1258 SIMPLEQ_REMOVE_HEAD(&vs->vs_pixel_formats, entries); 1259 kmem_free(pixel_format, sizeof(struct uvideo_pixel_format)); 1260 } 1261 1262 kmem_free(vs, sizeof(*vs)); 1263 } 1264 1265 1266 static usbd_status 1267 uvideo_stream_init_frame_based_format(struct uvideo_stream *vs, 1268 const uvideo_descriptor_t *format_desc, 1269 usbd_desc_iter_t *iter) 1270 { 1271 struct uvideo_pixel_format *pformat, *pfiter; 1272 enum video_pixel_format pixel_format; 1273 struct uvideo_format *format; 1274 const uvideo_descriptor_t *uvdesc; 1275 uint8_t subtype, default_index, index; 1276 uint32_t frame_interval; 1277 const usb_guid_t *guid; 1278 1279 pixel_format = VIDEO_FORMAT_UNDEFINED; 1280 1281 switch (format_desc->bDescriptorSubtype) { 1282 case UDESC_VS_FORMAT_UNCOMPRESSED: 1283 subtype = UDESC_VS_FRAME_UNCOMPRESSED; 1284 default_index = GET(uvideo_vs_format_uncompressed_descriptor_t, 1285 format_desc, 1286 bDefaultFrameIndex); 1287 guid = GETP(uvideo_vs_format_uncompressed_descriptor_t, 1288 format_desc, 1289 guidFormat); 1290 if (usb_guid_cmp(guid, &uvideo_guid_format_yuy2) == 0) 1291 pixel_format = VIDEO_FORMAT_YUY2; 1292 else if (usb_guid_cmp(guid, &uvideo_guid_format_nv12) == 0) 1293 pixel_format = VIDEO_FORMAT_NV12; 1294 else if (usb_guid_cmp(guid, &uvideo_guid_format_uyvy) == 0) 1295 pixel_format = VIDEO_FORMAT_UYVY; 1296 break; 1297 case UDESC_VS_FORMAT_FRAME_BASED: 1298 subtype = UDESC_VS_FRAME_FRAME_BASED; 1299 default_index = GET(uvideo_format_frame_based_descriptor_t, 1300 format_desc, 1301 bDefaultFrameIndex); 1302 break; 1303 case UDESC_VS_FORMAT_MJPEG: 1304 subtype = UDESC_VS_FRAME_MJPEG; 1305 default_index = GET(uvideo_vs_format_mjpeg_descriptor_t, 1306 format_desc, 1307 bDefaultFrameIndex); 1308 pixel_format = VIDEO_FORMAT_MJPEG; 1309 break; 1310 default: 1311 DPRINTF(("uvideo: unknown frame based format %d\n", 1312 format_desc->bDescriptorSubtype)); 1313 return USBD_INVAL; 1314 } 1315 1316 pformat = NULL; 1317 SIMPLEQ_FOREACH(pfiter, &vs->vs_pixel_formats, entries) { 1318 if (pfiter->pixel_format == pixel_format) { 1319 pformat = pfiter; 1320 break; 1321 } 1322 } 1323 if (pixel_format != VIDEO_FORMAT_UNDEFINED && pformat == NULL) { 1324 pformat = kmem_zalloc(sizeof(*pformat), KM_SLEEP); 1325 pformat->pixel_format = pixel_format; 1326 DPRINTF(("uvideo: Adding pixel format %d\n", 1327 pixel_format)); 1328 SIMPLEQ_INSERT_TAIL(&vs->vs_pixel_formats, 1329 pformat, entries); 1330 } 1331 1332 /* Iterate through frame descriptors directly following the 1333 * format descriptor, and add a format to the format list for 1334 * each frame descriptor. */ 1335 while ((uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_peek_next(iter)) && 1336 (uvdesc != NULL) && (uvdesc->bDescriptorSubtype == subtype)) 1337 { 1338 uvdesc = (const uvideo_descriptor_t *) usb_desc_iter_next(iter); 1339 1340 format = kmem_zalloc(sizeof(struct uvideo_format), KM_SLEEP); 1341 if (format == NULL) { 1342 DPRINTF(("uvideo: failed to alloc video format\n")); 1343 return USBD_NOMEM; 1344 } 1345 1346 format->format.pixel_format = pixel_format; 1347 1348 switch (format_desc->bDescriptorSubtype) { 1349 case UDESC_VS_FORMAT_UNCOMPRESSED: 1350 #ifdef UVIDEO_DEBUG 1351 if (pixel_format == VIDEO_FORMAT_UNDEFINED && 1352 uvideodebug) { 1353 guid = GETP( 1354 uvideo_vs_format_uncompressed_descriptor_t, 1355 format_desc, 1356 guidFormat); 1357 1358 DPRINTF(("uvideo: format undefined ")); 1359 usb_guid_print(guid); 1360 DPRINTF(("\n")); 1361 } 1362 #endif 1363 1364 UVIDEO_FORMAT_INIT_FRAME_BASED( 1365 uvideo_vs_format_uncompressed_descriptor_t, 1366 format_desc, 1367 uvideo_vs_frame_uncompressed_descriptor_t, 1368 uvdesc, 1369 format); 1370 format->format.sample_size = 1371 UGETDW( 1372 GET(uvideo_vs_frame_uncompressed_descriptor_t, 1373 uvdesc, dwMaxVideoFrameBufferSize)); 1374 format->format.stride = 1375 format->format.sample_size / format->format.height; 1376 index = GET(uvideo_vs_frame_uncompressed_descriptor_t, 1377 uvdesc, 1378 bFrameIndex); 1379 frame_interval = 1380 UGETDW( 1381 GET(uvideo_vs_frame_uncompressed_descriptor_t, 1382 uvdesc, 1383 dwDefaultFrameInterval)); 1384 break; 1385 case UDESC_VS_FORMAT_MJPEG: 1386 UVIDEO_FORMAT_INIT_FRAME_BASED( 1387 uvideo_vs_format_mjpeg_descriptor_t, 1388 format_desc, 1389 uvideo_vs_frame_mjpeg_descriptor_t, 1390 uvdesc, 1391 format); 1392 format->format.sample_size = 1393 UGETDW( 1394 GET(uvideo_vs_frame_mjpeg_descriptor_t, 1395 uvdesc, dwMaxVideoFrameBufferSize)); 1396 format->format.stride = 1397 format->format.sample_size / format->format.height; 1398 index = GET(uvideo_vs_frame_mjpeg_descriptor_t, 1399 uvdesc, 1400 bFrameIndex); 1401 frame_interval = 1402 UGETDW( 1403 GET(uvideo_vs_frame_mjpeg_descriptor_t, 1404 uvdesc, 1405 dwDefaultFrameInterval)); 1406 break; 1407 case UDESC_VS_FORMAT_FRAME_BASED: 1408 format->format.pixel_format = VIDEO_FORMAT_UNDEFINED; 1409 UVIDEO_FORMAT_INIT_FRAME_BASED( 1410 uvideo_format_frame_based_descriptor_t, 1411 format_desc, 1412 uvideo_frame_frame_based_descriptor_t, 1413 uvdesc, 1414 format); 1415 index = GET(uvideo_frame_frame_based_descriptor_t, 1416 uvdesc, 1417 bFrameIndex); 1418 format->format.stride = 1419 UGETDW( 1420 GET(uvideo_frame_frame_based_descriptor_t, 1421 uvdesc, dwBytesPerLine)); 1422 format->format.sample_size = 1423 format->format.stride * format->format.height; 1424 frame_interval = 1425 UGETDW( 1426 GET(uvideo_frame_frame_based_descriptor_t, 1427 uvdesc, dwDefaultFrameInterval)); 1428 break; 1429 default: 1430 /* shouldn't ever get here */ 1431 DPRINTF(("uvideo: unknown frame based format %d\n", 1432 format_desc->bDescriptorSubtype)); 1433 kmem_free(format, sizeof(struct uvideo_format)); 1434 return USBD_INVAL; 1435 } 1436 1437 DPRINTF(("uvideo: found format (index %d) type %d " 1438 "size %ux%u size %u stride %u interval %u\n", 1439 index, format->format.pixel_format, format->format.width, 1440 format->format.height, format->format.sample_size, 1441 format->format.stride, frame_interval)); 1442 1443 SIMPLEQ_INSERT_TAIL(&vs->vs_formats, format, entries); 1444 1445 if (vs->vs_default_format == NULL && index == default_index 1446 #ifdef UVIDEO_DISABLE_MJPEG 1447 && subtype != UDESC_VS_FRAME_MJPEG 1448 #endif 1449 ) { 1450 DPRINTF((" ^ picking this one\n")); 1451 vs->vs_default_format = &format->format; 1452 vs->vs_frame_interval = frame_interval; 1453 } 1454 1455 } 1456 1457 return USBD_NORMAL_COMPLETION; 1458 } 1459 1460 static int 1461 uvideo_stream_start_xfer(struct uvideo_stream *vs) 1462 { 1463 struct uvideo_softc *sc = vs->vs_parent; 1464 struct uvideo_bulk_xfer *bx; 1465 struct uvideo_isoc_xfer *ix; 1466 uint32_t vframe_len; /* rough bytes per video frame */ 1467 uint32_t uframe_len; /* bytes per usb frame (TODO: or microframe?) */ 1468 uint32_t nframes; /* number of usb frames (TODO: or microframs?) */ 1469 int i, ret; 1470 1471 struct uvideo_alternate *alt, *alt_maybe; 1472 usbd_status err; 1473 1474 switch (vs->vs_xfer_type) { 1475 case UE_BULK: 1476 ret = 0; 1477 bx = &vs->vs_xfer.bulk; 1478 1479 bx->bx_xfer = usbd_alloc_xfer(sc->sc_udev); 1480 if (bx->bx_xfer == NULL) { 1481 DPRINTF(("uvideo: couldn't allocate xfer\n")); 1482 return ENOMEM; 1483 } 1484 DPRINTF(("uvideo: xfer %p\n", bx->bx_xfer)); 1485 1486 bx->bx_buflen = vs->vs_max_payload_size; 1487 1488 DPRINTF(("uvideo: allocating %u byte buffer\n", bx->bx_buflen)); 1489 bx->bx_buffer = usbd_alloc_buffer(bx->bx_xfer, bx->bx_buflen); 1490 1491 if (bx->bx_buffer == NULL) { 1492 DPRINTF(("uvideo: couldn't allocate buffer\n")); 1493 return ENOMEM; 1494 } 1495 1496 err = usbd_open_pipe(vs->vs_iface, bx->bx_endpt, 0, 1497 &bx->bx_pipe); 1498 if (err != USBD_NORMAL_COMPLETION) { 1499 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1500 usbd_errstr(err), err)); 1501 return EIO; 1502 } 1503 DPRINTF(("uvideo: pipe %p\n", bx->bx_pipe)); 1504 1505 mutex_enter(&bx->bx_lock); 1506 if (bx->bx_running == false) { 1507 bx->bx_running = true; 1508 ret = kthread_create(PRI_UVIDEO, 0, NULL, 1509 uvideo_stream_recv_bulk_transfer, vs, 1510 NULL, "%s", device_xname(sc->sc_dev)); 1511 if (ret) { 1512 DPRINTF(("uvideo: couldn't create kthread:" 1513 " %d\n", err)); 1514 bx->bx_running = false; 1515 mutex_exit(&bx->bx_lock); 1516 return err; 1517 } 1518 } else 1519 aprint_error_dev(sc->sc_dev, 1520 "transfer already in progress\n"); 1521 mutex_exit(&bx->bx_lock); 1522 1523 DPRINTF(("uvideo: thread created\n")); 1524 1525 return 0; 1526 case UE_ISOCHRONOUS: 1527 ix = &vs->vs_xfer.isoc; 1528 1529 /* Choose an alternate interface most suitable for 1530 * this format. Choose the smallest size that can 1531 * contain max_payload_size. 1532 * 1533 * It is assumed that the list is sorted in descending 1534 * order from largest to smallest packet size. 1535 * 1536 * TODO: what should the strategy be for choosing an 1537 * alt interface? 1538 */ 1539 alt = NULL; 1540 SLIST_FOREACH(alt_maybe, &ix->ix_altlist, entries) { 1541 /* TODO: define "packet" and "payload". I think 1542 * several packets can make up one payload which would 1543 * call into question this method of selecting an 1544 * alternate interface... */ 1545 1546 if (alt_maybe->max_packet_size > vs->vs_max_payload_size) 1547 continue; 1548 1549 if (alt == NULL || 1550 alt_maybe->max_packet_size >= alt->max_packet_size) 1551 alt = alt_maybe; 1552 } 1553 1554 if (alt == NULL) { 1555 DPRINTF(("uvideo_stream_start_xfer: " 1556 "no suitable alternate interface found\n")); 1557 return EINVAL; 1558 } 1559 1560 DPRINTFN(15,("uvideo_stream_start_xfer: " 1561 "choosing alternate interface " 1562 "%d wMaxPacketSize=%d bInterval=%d\n", 1563 alt->altno, alt->max_packet_size, alt->interval)); 1564 1565 err = usbd_set_interface(vs->vs_iface, alt->altno); 1566 if (err != USBD_NORMAL_COMPLETION) { 1567 DPRINTF(("uvideo_stream_start_xfer: " 1568 "error setting alt interface: %s (%d)\n", 1569 usbd_errstr(err), err)); 1570 return EIO; 1571 } 1572 1573 /* TODO: "packet" not same as frame */ 1574 vframe_len = vs->vs_current_format.sample_size; 1575 uframe_len = alt->max_packet_size; 1576 nframes = (vframe_len + uframe_len - 1) / uframe_len; 1577 nframes = (nframes + 7) & ~7; /*round up for ehci inefficiency*/ 1578 DPRINTF(("uvideo_stream_start_xfer: nframes=%d\n", nframes)); 1579 1580 ix->ix_nframes = nframes; 1581 ix->ix_uframe_len = uframe_len; 1582 for (i = 0; i < UVIDEO_NXFERS; i++) { 1583 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1584 isoc->i_frlengths = 1585 kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, 1586 KM_SLEEP); 1587 if (isoc->i_frlengths == NULL) { 1588 DPRINTF(("uvideo: failed to alloc frlengths:" 1589 "%s (%d)\n", 1590 usbd_errstr(err), err)); 1591 return ENOMEM; 1592 } 1593 } 1594 1595 err = usbd_open_pipe(vs->vs_iface, ix->ix_endpt, 1596 USBD_EXCLUSIVE_USE, &ix->ix_pipe); 1597 if (err != USBD_NORMAL_COMPLETION) { 1598 DPRINTF(("uvideo: error opening pipe: %s (%d)\n", 1599 usbd_errstr(err), err)); 1600 return EIO; 1601 } 1602 1603 for (i = 0; i < UVIDEO_NXFERS; i++) { 1604 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1605 isoc->i_xfer = usbd_alloc_xfer(sc->sc_udev); 1606 if (isoc->i_xfer == NULL) { 1607 DPRINTF(("uvideo: failed to alloc xfer: %s" 1608 " (%d)\n", 1609 usbd_errstr(err), err)); 1610 return ENOMEM; 1611 } 1612 1613 isoc->i_buf = usbd_alloc_buffer(isoc->i_xfer, 1614 nframes * uframe_len); 1615 1616 if (isoc->i_buf == NULL) { 1617 DPRINTF(("uvideo: failed to alloc buf: %s" 1618 " (%d)\n", 1619 usbd_errstr(err), err)); 1620 return ENOMEM; 1621 } 1622 } 1623 1624 uvideo_stream_recv_isoc_start(vs); 1625 1626 return 0; 1627 default: 1628 /* should never get here */ 1629 DPRINTF(("uvideo_stream_start_xfer: unknown xfer type 0x%x\n", 1630 vs->vs_xfer_type)); 1631 return EINVAL; 1632 } 1633 } 1634 1635 static int 1636 uvideo_stream_stop_xfer(struct uvideo_stream *vs) 1637 { 1638 struct uvideo_bulk_xfer *bx; 1639 struct uvideo_isoc_xfer *ix; 1640 usbd_status err; 1641 int i; 1642 1643 switch (vs->vs_xfer_type) { 1644 case UE_BULK: 1645 bx = &vs->vs_xfer.bulk; 1646 1647 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: " 1648 "waiting for thread to complete\n")); 1649 mutex_enter(&bx->bx_lock); 1650 if (bx->bx_running == true) { 1651 bx->bx_running = false; 1652 cv_wait_sig(&bx->bx_cv, &bx->bx_lock); 1653 } 1654 mutex_exit(&bx->bx_lock); 1655 1656 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: cleaning up\n")); 1657 1658 if (bx->bx_pipe) { 1659 usbd_abort_pipe(bx->bx_pipe); 1660 usbd_close_pipe(bx->bx_pipe); 1661 bx->bx_pipe = NULL; 1662 } 1663 1664 if (bx->bx_xfer) { 1665 usbd_free_xfer(bx->bx_xfer); 1666 bx->bx_xfer = NULL; 1667 } 1668 1669 DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: done\n")); 1670 1671 return 0; 1672 case UE_ISOCHRONOUS: 1673 ix = &vs->vs_xfer.isoc; 1674 if (ix->ix_pipe != NULL) { 1675 usbd_abort_pipe(ix->ix_pipe); 1676 usbd_close_pipe(ix->ix_pipe); 1677 ix->ix_pipe = NULL; 1678 } 1679 1680 for (i = 0; i < UVIDEO_NXFERS; i++) { 1681 struct uvideo_isoc *isoc = &ix->ix_i[i]; 1682 if (isoc->i_xfer != NULL) { 1683 usbd_free_buffer(isoc->i_xfer); 1684 usbd_free_xfer(isoc->i_xfer); 1685 isoc->i_xfer = NULL; 1686 } 1687 1688 if (isoc->i_frlengths != NULL) { 1689 kmem_free(isoc->i_frlengths, 1690 sizeof(isoc->i_frlengths[0]) * 1691 ix->ix_nframes); 1692 isoc->i_frlengths = NULL; 1693 } 1694 } 1695 1696 /* Give it some time to settle */ 1697 usbd_delay_ms(vs->vs_parent->sc_udev, 1000); 1698 1699 /* Set to zero bandwidth alternate interface zero */ 1700 err = usbd_set_interface(vs->vs_iface, 0); 1701 if (err != USBD_NORMAL_COMPLETION) { 1702 DPRINTF(("uvideo_stream_stop_transfer: " 1703 "error setting zero bandwidth interface: " 1704 "%s (%d)\n", 1705 usbd_errstr(err), err)); 1706 return EIO; 1707 } 1708 1709 return 0; 1710 default: 1711 /* should never get here */ 1712 DPRINTF(("uvideo_stream_stop_xfer: unknown xfer type 0x%x\n", 1713 vs->vs_xfer_type)); 1714 return EINVAL; 1715 } 1716 } 1717 1718 static usbd_status 1719 uvideo_stream_recv_isoc_start(struct uvideo_stream *vs) 1720 { 1721 int i; 1722 1723 for (i = 0; i < UVIDEO_NXFERS; i++) 1724 uvideo_stream_recv_isoc_start1(&vs->vs_xfer.isoc.ix_i[i]); 1725 1726 return USBD_NORMAL_COMPLETION; 1727 } 1728 1729 /* Initiate a usb transfer. */ 1730 static usbd_status 1731 uvideo_stream_recv_isoc_start1(struct uvideo_isoc *isoc) 1732 { 1733 struct uvideo_isoc_xfer *ix; 1734 usbd_status err; 1735 int i; 1736 1737 ix = isoc->i_ix; 1738 1739 for (i = 0; i < ix->ix_nframes; ++i) 1740 isoc->i_frlengths[i] = ix->ix_uframe_len; 1741 1742 usbd_setup_isoc_xfer(isoc->i_xfer, 1743 ix->ix_pipe, 1744 isoc, 1745 isoc->i_frlengths, 1746 ix->ix_nframes, 1747 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1748 uvideo_stream_recv_isoc_complete); 1749 1750 err = usbd_transfer(isoc->i_xfer); 1751 if (err != USBD_IN_PROGRESS) { 1752 DPRINTF(("uvideo_stream_recv_start: " 1753 "usbd_transfer status=%s (%d)\n", 1754 usbd_errstr(err), err)); 1755 } 1756 return err; 1757 } 1758 1759 static usbd_status 1760 uvideo_stream_recv_process(struct uvideo_stream *vs, uint8_t *buf, uint32_t len) 1761 { 1762 uvideo_payload_header_t *hdr; 1763 struct video_payload payload; 1764 1765 if (len < sizeof(uvideo_payload_header_t)) { 1766 DPRINTF(("uvideo_stream_recv_process: len %d < payload hdr\n", 1767 len)); 1768 return USBD_SHORT_XFER; 1769 } 1770 1771 hdr = (uvideo_payload_header_t *)buf; 1772 1773 if (hdr->bHeaderLength > UVIDEO_PAYLOAD_HEADER_SIZE || 1774 hdr->bHeaderLength < sizeof(uvideo_payload_header_t)) 1775 return USBD_INVAL; 1776 if (hdr->bHeaderLength == len && !(hdr->bmHeaderInfo & UV_END_OF_FRAME)) 1777 return USBD_INVAL; 1778 if (hdr->bmHeaderInfo & UV_ERROR) 1779 return USBD_IOERROR; 1780 1781 payload.data = buf + hdr->bHeaderLength; 1782 payload.size = len - hdr->bHeaderLength; 1783 payload.frameno = hdr->bmHeaderInfo & UV_FRAME_ID; 1784 payload.end_of_frame = hdr->bmHeaderInfo & UV_END_OF_FRAME; 1785 1786 video_submit_payload(vs->vs_parent->sc_videodev, &payload); 1787 1788 return USBD_NORMAL_COMPLETION; 1789 } 1790 1791 /* Callback on completion of usb isoc transfer */ 1792 static void 1793 uvideo_stream_recv_isoc_complete(usbd_xfer_handle xfer, 1794 usbd_private_handle priv, 1795 usbd_status status) 1796 { 1797 struct uvideo_stream *vs; 1798 struct uvideo_isoc_xfer *ix; 1799 struct uvideo_isoc *isoc; 1800 int i; 1801 uint32_t count; 1802 uint8_t *buf; 1803 1804 isoc = priv; 1805 vs = isoc->i_vs; 1806 ix = isoc->i_ix; 1807 1808 if (status != USBD_NORMAL_COMPLETION) { 1809 DPRINTF(("uvideo_stream_recv_isoc_complete: status=%s (%d)\n", 1810 usbd_errstr(status), status)); 1811 1812 if (status == USBD_STALLED) 1813 usbd_clear_endpoint_stall_async(ix->ix_pipe); 1814 else 1815 return; 1816 } else { 1817 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1818 1819 if (count == 0) { 1820 /* DPRINTF(("uvideo: zero length transfer\n")); */ 1821 goto next; 1822 } 1823 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 const char * 1922 uvideo_get_businfo(void *addr) 1923 { 1924 struct uvideo_softc *sc = addr; 1925 return sc->sc_businfo; 1926 } 1927 1928 static int 1929 uvideo_enum_format(void *addr, uint32_t index, struct video_format *format) 1930 { 1931 struct uvideo_softc *sc = addr; 1932 struct uvideo_stream *vs = sc->sc_stream_in; 1933 struct uvideo_pixel_format *pixel_format; 1934 int off; 1935 1936 if (sc->sc_dying) 1937 return EIO; 1938 1939 off = 0; 1940 SIMPLEQ_FOREACH(pixel_format, &vs->vs_pixel_formats, entries) { 1941 if (off++ != index) 1942 continue; 1943 format->pixel_format = pixel_format->pixel_format; 1944 return 0; 1945 } 1946 1947 return EINVAL; 1948 } 1949 1950 /* 1951 * uvideo_get_format 1952 */ 1953 static int 1954 uvideo_get_format(void *addr, struct video_format *format) 1955 { 1956 struct uvideo_softc *sc = addr; 1957 struct uvideo_stream *vs = sc->sc_stream_in; 1958 1959 if (sc->sc_dying) 1960 return EIO; 1961 1962 *format = vs->vs_current_format; 1963 1964 return 0; 1965 } 1966 1967 /* 1968 * uvideo_set_format - TODO: this is boken and does nothing 1969 */ 1970 static int 1971 uvideo_set_format(void *addr, struct video_format *format) 1972 { 1973 struct uvideo_softc *sc; 1974 struct uvideo_stream *vs; 1975 struct uvideo_format *uvfmt; 1976 uvideo_probe_and_commit_data_t probe, maxprobe; 1977 usbd_status err; 1978 1979 sc = addr; 1980 1981 DPRINTF(("uvideo_set_format: sc=%p\n", sc)); 1982 if (sc->sc_dying) 1983 return EIO; 1984 1985 vs = sc->sc_stream_in; 1986 1987 uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, 1988 format->width, format->height); 1989 if (uvfmt == NULL) { 1990 DPRINTF(("uvideo: uvideo_stream_guess_format couldn't find " 1991 "%dx%d format %d\n", format->width, format->height, 1992 format->pixel_format)); 1993 return EINVAL; 1994 } 1995 1996 uvideo_init_probe_data(&probe); 1997 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); 1998 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); 1999 USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ 2000 2001 maxprobe = probe; 2002 err = uvideo_stream_probe(vs, UR_GET_MAX, &maxprobe); 2003 if (err) { 2004 DPRINTF(("uvideo: error probe/GET_MAX: %s (%d)\n", 2005 usbd_errstr(err), err)); 2006 } else { 2007 USETW(probe.wCompQuality, UGETW(maxprobe.wCompQuality)); 2008 } 2009 2010 err = uvideo_stream_probe(vs, UR_SET_CUR, &probe); 2011 if (err) { 2012 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2013 usbd_errstr(err), err)); 2014 return EIO; 2015 } 2016 2017 uvideo_init_probe_data(&probe); 2018 err = uvideo_stream_probe(vs, UR_GET_CUR, &probe); 2019 if (err) { 2020 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2021 usbd_errstr(err), err)); 2022 return EIO; 2023 } 2024 2025 if (probe.bFormatIndex != UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt)) { 2026 DPRINTF(("uvideo: probe/GET_CUR returned format index %d " 2027 "(expected %d)\n", probe.bFormatIndex, 2028 UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt))); 2029 probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); 2030 } 2031 if (probe.bFrameIndex != UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt)) { 2032 DPRINTF(("uvideo: probe/GET_CUR returned frame index %d " 2033 "(expected %d)\n", probe.bFrameIndex, 2034 UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt))); 2035 probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); 2036 } 2037 USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ 2038 2039 /* commit/SET_CUR. Fourth step is to set the alternate 2040 * interface. Currently the fourth step is in 2041 * uvideo_start_transfer. Maybe move it here? */ 2042 err = uvideo_stream_commit(vs, UR_SET_CUR, &probe); 2043 if (err) { 2044 DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n", 2045 usbd_errstr(err), err)); 2046 return EIO; 2047 } 2048 2049 DPRINTFN(15, ("uvideo_set_format: committing to format: " 2050 "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " 2051 "dwFrameInterval=%u wKeyFrameRate=%d wPFrameRate=%d " 2052 "wCompQuality=%d wCompWindowSize=%d wDelay=%d " 2053 "dwMaxVideoFrameSize=%u dwMaxPayloadTransferSize=%u", 2054 UGETW(probe.bmHint), 2055 probe.bFormatIndex, 2056 probe.bFrameIndex, 2057 UGETDW(probe.dwFrameInterval), 2058 UGETW(probe.wKeyFrameRate), 2059 UGETW(probe.wPFrameRate), 2060 UGETW(probe.wCompQuality), 2061 UGETW(probe.wCompWindowSize), 2062 UGETW(probe.wDelay), 2063 UGETDW(probe.dwMaxVideoFrameSize), 2064 UGETDW(probe.dwMaxPayloadTransferSize))); 2065 if (vs->vs_probelen == 34) { 2066 DPRINTFN(15, (" dwClockFrequency=%u bmFramingInfo=0x%02x " 2067 "bPreferedVersion=%d bMinVersion=%d " 2068 "bMaxVersion=%d", 2069 UGETDW(probe.dwClockFrequency), 2070 probe.bmFramingInfo, 2071 probe.bPreferedVersion, 2072 probe.bMinVersion, 2073 probe.bMaxVersion)); 2074 } 2075 DPRINTFN(15, ("\n")); 2076 2077 vs->vs_frame_interval = UGETDW(probe.dwFrameInterval); 2078 vs->vs_max_payload_size = UGETDW(probe.dwMaxPayloadTransferSize); 2079 2080 *format = uvfmt->format; 2081 vs->vs_current_format = *format; 2082 DPRINTF(("uvideo_set_format: pixeltype is %d\n", format->pixel_format)); 2083 2084 return 0; 2085 } 2086 2087 static int 2088 uvideo_try_format(void *addr, struct video_format *format) 2089 { 2090 struct uvideo_softc *sc = addr; 2091 struct uvideo_stream *vs = sc->sc_stream_in; 2092 struct uvideo_format *uvfmt; 2093 2094 uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, 2095 format->width, format->height); 2096 if (uvfmt == NULL) 2097 return EINVAL; 2098 2099 *format = uvfmt->format; 2100 return 0; 2101 } 2102 2103 static int 2104 uvideo_start_transfer(void *addr) 2105 { 2106 struct uvideo_softc *sc = addr; 2107 struct uvideo_stream *vs; 2108 int s, err; 2109 2110 /* FIXME: this functions should be stream specific */ 2111 vs = SLIST_FIRST(&sc->sc_stream_list); 2112 s = splusb(); 2113 err = uvideo_stream_start_xfer(vs); 2114 splx(s); 2115 2116 return err; 2117 } 2118 2119 static int 2120 uvideo_stop_transfer(void *addr) 2121 { 2122 struct uvideo_softc *sc; 2123 int err, s; 2124 2125 sc = addr; 2126 2127 s = splusb(); 2128 err = uvideo_stream_stop_xfer(sc->sc_stream_in); 2129 splx(s); 2130 2131 return err; 2132 } 2133 2134 2135 static int 2136 uvideo_get_control_group(void *addr, struct video_control_group *group) 2137 { 2138 struct uvideo_softc *sc; 2139 usb_device_request_t req; 2140 usbd_status err; 2141 uint8_t control_id, ent_id, data[16]; 2142 uint16_t len; 2143 int s; 2144 2145 sc = addr; 2146 2147 /* request setup */ 2148 switch (group->group_id) { 2149 case VIDEO_CONTROL_PANTILT_RELATIVE: 2150 if (group->length != 4) 2151 return EINVAL; 2152 2153 return EINVAL; 2154 case VIDEO_CONTROL_SHARPNESS: 2155 if (group->length != 1) 2156 return EINVAL; 2157 2158 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 2159 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 2160 len = 2; 2161 break; 2162 default: 2163 return EINVAL; 2164 } 2165 2166 /* do request */ 2167 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 2168 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 2169 UVIDEO_REQUEST_TYPE_GET; 2170 req.bRequest = UR_GET_CUR; 2171 USETW(req.wValue, control_id << 8); 2172 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 2173 USETW(req.wLength, len); 2174 2175 s = splusb(); 2176 err = usbd_do_request(sc->sc_udev, &req, data); 2177 splx(s); 2178 if (err != USBD_NORMAL_COMPLETION) { 2179 DPRINTF(("uvideo_set_control: error %s (%d)\n", 2180 usbd_errstr(err), err)); 2181 return EIO; /* TODO: more detail here? */ 2182 } 2183 2184 /* extract request data */ 2185 switch (group->group_id) { 2186 case VIDEO_CONTROL_SHARPNESS: 2187 group->control[0].value = UGETW(data); 2188 break; 2189 default: 2190 return EINVAL; 2191 } 2192 2193 return 0; 2194 } 2195 2196 2197 static int 2198 uvideo_set_control_group(void *addr, const struct video_control_group *group) 2199 { 2200 struct uvideo_softc *sc; 2201 usb_device_request_t req; 2202 usbd_status err; 2203 uint8_t control_id, ent_id, data[16]; /* long enough for all controls */ 2204 uint16_t len; 2205 int s; 2206 2207 sc = addr; 2208 2209 switch (group->group_id) { 2210 case VIDEO_CONTROL_PANTILT_RELATIVE: 2211 if (group->length != 4) 2212 return EINVAL; 2213 2214 if (group->control[0].value != 0 || 2215 group->control[0].value != 1 || 2216 group->control[0].value != 0xff) 2217 return ERANGE; 2218 2219 if (group->control[2].value != 0 || 2220 group->control[2].value != 1 || 2221 group->control[2].value != 0xff) 2222 return ERANGE; 2223 2224 control_id = UVIDEO_CT_PANTILT_RELATIVE_CONTROL; 2225 ent_id = 1; /* TODO: hardcoded logitech camera terminal */ 2226 len = 4; 2227 data[0] = group->control[0].value; 2228 data[1] = group->control[1].value; 2229 data[2] = group->control[2].value; 2230 data[3] = group->control[3].value; 2231 break; 2232 case VIDEO_CONTROL_BRIGHTNESS: 2233 if (group->length != 1) 2234 return EINVAL; 2235 control_id = UVIDEO_PU_BRIGHTNESS_CONTROL; 2236 ent_id = 2; 2237 len = 2; 2238 USETW(data, group->control[0].value); 2239 break; 2240 case VIDEO_CONTROL_GAIN: 2241 if (group->length != 1) 2242 return EINVAL; 2243 control_id = UVIDEO_PU_GAIN_CONTROL; 2244 ent_id = 2; 2245 len = 2; 2246 USETW(data, group->control[0].value); 2247 break; 2248 case VIDEO_CONTROL_SHARPNESS: 2249 if (group->length != 1) 2250 return EINVAL; 2251 control_id = UVIDEO_PU_SHARPNESS_CONTROL; 2252 ent_id = 2; /* TODO: hardcoded logitech processing unit */ 2253 len = 2; 2254 USETW(data, group->control[0].value); 2255 break; 2256 default: 2257 return EINVAL; 2258 } 2259 2260 req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | 2261 UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | 2262 UVIDEO_REQUEST_TYPE_SET; 2263 req.bRequest = UR_SET_CUR; 2264 USETW(req.wValue, control_id << 8); 2265 USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); 2266 USETW(req.wLength, len); 2267 2268 s = splusb(); 2269 err = usbd_do_request(sc->sc_udev, &req, data); 2270 splx(s); 2271 if (err != USBD_NORMAL_COMPLETION) { 2272 DPRINTF(("uvideo_set_control: error %s (%d)\n", 2273 usbd_errstr(err), err)); 2274 return EIO; /* TODO: more detail here? */ 2275 } 2276 2277 return 0; 2278 } 2279 2280 static usbd_status 2281 uvideo_stream_probe_and_commit(struct uvideo_stream *vs, 2282 uint8_t action, uint8_t control, 2283 void *data) 2284 { 2285 usb_device_request_t req; 2286 2287 switch (action) { 2288 case UR_SET_CUR: 2289 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 2290 USETW(req.wLength, vs->vs_probelen); 2291 break; 2292 case UR_GET_CUR: 2293 case UR_GET_MIN: 2294 case UR_GET_MAX: 2295 case UR_GET_DEF: 2296 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2297 USETW(req.wLength, vs->vs_probelen); 2298 break; 2299 case UR_GET_INFO: 2300 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2301 USETW(req.wLength, sizeof(uByte)); 2302 break; 2303 case UR_GET_LEN: 2304 req.bmRequestType = UT_READ_CLASS_INTERFACE; 2305 USETW(req.wLength, sizeof(uWord)); /* is this right? */ 2306 break; 2307 default: 2308 DPRINTF(("uvideo_probe_and_commit: " 2309 "unknown request action %d\n", action)); 2310 return USBD_NOT_STARTED; 2311 } 2312 2313 req.bRequest = action; 2314 USETW2(req.wValue, control, 0); 2315 USETW2(req.wIndex, 0, vs->vs_ifaceno); 2316 2317 return (usbd_do_request_flags(vs->vs_parent->sc_udev, &req, data, 2318 0, 0, 2319 USBD_DEFAULT_TIMEOUT)); 2320 } 2321 2322 static void 2323 uvideo_init_probe_data(uvideo_probe_and_commit_data_t *probe) 2324 { 2325 /* all zeroes tells camera to choose what it wants */ 2326 memset(probe, 0, sizeof(*probe)); 2327 } 2328 2329 2330 #ifdef _MODULE 2331 2332 MODULE(MODULE_CLASS_DRIVER, uvideo, NULL); 2333 static const struct cfiattrdata videobuscf_iattrdata = { 2334 "videobus", 0, { 2335 { NULL, NULL, 0 }, 2336 } 2337 }; 2338 static const struct cfiattrdata * const uvideo_attrs[] = { 2339 &videobuscf_iattrdata, NULL 2340 }; 2341 CFDRIVER_DECL(uvideo, DV_DULL, uvideo_attrs); 2342 extern struct cfattach uvideo_ca; 2343 extern struct cfattach uvideo_ca; 2344 static int uvideoloc[6] = { -1, -1, -1, -1, -1, -1 }; 2345 static struct cfparent uhubparent = { 2346 "usbifif", NULL, DVUNIT_ANY 2347 }; 2348 static struct cfdata uvideo_cfdata[] = { 2349 { 2350 .cf_name = "uvideo", 2351 .cf_atname = "uvideo", 2352 .cf_unit = 0, 2353 .cf_fstate = FSTATE_STAR, 2354 .cf_loc = uvideoloc, 2355 .cf_flags = 0, 2356 .cf_pspec = &uhubparent, 2357 }, 2358 { NULL, NULL, 0, 0, NULL, 0, NULL }, 2359 }; 2360 2361 static int 2362 uvideo_modcmd(modcmd_t cmd, void *arg) 2363 { 2364 int err; 2365 2366 2367 switch (cmd) { 2368 case MODULE_CMD_INIT: 2369 DPRINTF(("uvideo: attempting to load\n")); 2370 2371 err = config_cfdriver_attach(&uvideo_cd); 2372 if (err) 2373 return err; 2374 err = config_cfattach_attach("uvideo", &uvideo_ca); 2375 if (err) { 2376 config_cfdriver_detach(&uvideo_cd); 2377 return err; 2378 } 2379 err = config_cfdata_attach(uvideo_cfdata, 1); 2380 if (err) { 2381 config_cfattach_detach("uvideo", &uvideo_ca); 2382 config_cfdriver_detach(&uvideo_cd); 2383 return err; 2384 } 2385 DPRINTF(("uvideo: loaded module\n")); 2386 return 0; 2387 case MODULE_CMD_FINI: 2388 DPRINTF(("uvideo: attempting to unload module\n")); 2389 err = config_cfdata_detach(uvideo_cfdata); 2390 if (err) 2391 return err; 2392 config_cfattach_detach("uvideo", &uvideo_ca); 2393 config_cfdriver_detach(&uvideo_cd); 2394 DPRINTF(("uvideo: module unload\n")); 2395 return 0; 2396 default: 2397 return ENOTTY; 2398 } 2399 } 2400 2401 #endif /* _MODULE */ 2402 2403 2404 #ifdef UVIDEO_DEBUG 2405 /* Some functions to print out descriptors. Mostly useless other than 2406 * debugging/exploration purposes. */ 2407 2408 2409 static void 2410 print_bitmap(const uByte *start, uByte nbytes) 2411 { 2412 int byte, bit; 2413 2414 /* most significant first */ 2415 for (byte = nbytes-1; byte >= 0; --byte) { 2416 if (byte < nbytes-1) printf("-"); 2417 for (bit = 7; bit >= 0; --bit) 2418 printf("%01d", (start[byte] >> bit) &1); 2419 } 2420 } 2421 2422 static void 2423 print_descriptor(const usb_descriptor_t *desc) 2424 { 2425 static int current_class = -1; 2426 static int current_subclass = -1; 2427 2428 if (desc->bDescriptorType == UDESC_INTERFACE) { 2429 const usb_interface_descriptor_t *id; 2430 id = (const usb_interface_descriptor_t *)desc; 2431 current_class = id->bInterfaceClass; 2432 current_subclass = id->bInterfaceSubClass; 2433 print_interface_descriptor(id); 2434 printf("\n"); 2435 return; 2436 } 2437 2438 printf(" "); /* indent */ 2439 2440 if (current_class == UICLASS_VIDEO) { 2441 switch (current_subclass) { 2442 case UISUBCLASS_VIDEOCONTROL: 2443 print_vc_descriptor(desc); 2444 break; 2445 case UISUBCLASS_VIDEOSTREAMING: 2446 print_vs_descriptor(desc); 2447 break; 2448 case UISUBCLASS_VIDEOCOLLECTION: 2449 printf("uvc collection: len=%d type=0x%02x", 2450 desc->bLength, desc->bDescriptorType); 2451 break; 2452 } 2453 } else { 2454 printf("non uvc descriptor len=%d type=0x%02x", 2455 desc->bLength, desc->bDescriptorType); 2456 } 2457 2458 printf("\n"); 2459 } 2460 2461 static void 2462 print_vc_descriptor(const usb_descriptor_t *desc) 2463 { 2464 const uvideo_descriptor_t *vcdesc; 2465 2466 printf("VC "); 2467 2468 switch (desc->bDescriptorType) { 2469 case UDESC_ENDPOINT: 2470 print_endpoint_descriptor( 2471 (const usb_endpoint_descriptor_t *)desc); 2472 break; 2473 case UDESC_CS_INTERFACE: 2474 vcdesc = (const uvideo_descriptor_t *)desc; 2475 switch (vcdesc->bDescriptorSubtype) { 2476 case UDESC_VC_HEADER: 2477 print_vc_header_descriptor( 2478 (const uvideo_vc_header_descriptor_t *) 2479 vcdesc); 2480 break; 2481 case UDESC_INPUT_TERMINAL: 2482 switch (UGETW( 2483 ((const uvideo_input_terminal_descriptor_t *) 2484 vcdesc)->wTerminalType)) { 2485 case UVIDEO_ITT_CAMERA: 2486 print_camera_terminal_descriptor( 2487 (const uvideo_camera_terminal_descriptor_t *)vcdesc); 2488 break; 2489 default: 2490 print_input_terminal_descriptor( 2491 (const uvideo_input_terminal_descriptor_t *)vcdesc); 2492 break; 2493 } 2494 break; 2495 case UDESC_OUTPUT_TERMINAL: 2496 print_output_terminal_descriptor( 2497 (const uvideo_output_terminal_descriptor_t *) 2498 vcdesc); 2499 break; 2500 case UDESC_SELECTOR_UNIT: 2501 print_selector_unit_descriptor( 2502 (const uvideo_selector_unit_descriptor_t *) 2503 vcdesc); 2504 break; 2505 case UDESC_PROCESSING_UNIT: 2506 print_processing_unit_descriptor( 2507 (const uvideo_processing_unit_descriptor_t *) 2508 vcdesc); 2509 break; 2510 case UDESC_EXTENSION_UNIT: 2511 print_extension_unit_descriptor( 2512 (const uvideo_extension_unit_descriptor_t *) 2513 vcdesc); 2514 break; 2515 default: 2516 printf("class specific interface " 2517 "len=%d type=0x%02x subtype=0x%02x", 2518 vcdesc->bLength, 2519 vcdesc->bDescriptorType, 2520 vcdesc->bDescriptorSubtype); 2521 break; 2522 } 2523 break; 2524 case UDESC_CS_ENDPOINT: 2525 vcdesc = (const uvideo_descriptor_t *)desc; 2526 switch (vcdesc->bDescriptorSubtype) { 2527 case UDESC_VC_INTERRUPT_ENDPOINT: 2528 print_interrupt_endpoint_descriptor( 2529 (const uvideo_vc_interrupt_endpoint_descriptor_t *) 2530 vcdesc); 2531 break; 2532 default: 2533 printf("class specific endpoint " 2534 "len=%d type=0x%02x subtype=0x%02x", 2535 vcdesc->bLength, 2536 vcdesc->bDescriptorType, 2537 vcdesc->bDescriptorSubtype); 2538 break; 2539 } 2540 break; 2541 default: 2542 printf("unknown: len=%d type=0x%02x", 2543 desc->bLength, desc->bDescriptorType); 2544 break; 2545 } 2546 } 2547 2548 static void 2549 print_vs_descriptor(const usb_descriptor_t *desc) 2550 { 2551 const uvideo_descriptor_t * vsdesc; 2552 printf("VS "); 2553 2554 switch (desc->bDescriptorType) { 2555 case UDESC_ENDPOINT: 2556 print_endpoint_descriptor( 2557 (const usb_endpoint_descriptor_t *)desc); 2558 break; 2559 case UDESC_CS_INTERFACE: 2560 vsdesc = (const uvideo_descriptor_t *)desc; 2561 switch (vsdesc->bDescriptorSubtype) { 2562 case UDESC_VS_INPUT_HEADER: 2563 print_vs_input_header_descriptor( 2564 (const uvideo_vs_input_header_descriptor_t *) 2565 vsdesc); 2566 break; 2567 case UDESC_VS_OUTPUT_HEADER: 2568 print_vs_output_header_descriptor( 2569 (const uvideo_vs_output_header_descriptor_t *) 2570 vsdesc); 2571 break; 2572 case UDESC_VS_FORMAT_UNCOMPRESSED: 2573 print_vs_format_uncompressed_descriptor( 2574 (const uvideo_vs_format_uncompressed_descriptor_t *) 2575 vsdesc); 2576 break; 2577 case UDESC_VS_FRAME_UNCOMPRESSED: 2578 print_vs_frame_uncompressed_descriptor( 2579 (const uvideo_vs_frame_uncompressed_descriptor_t *) 2580 vsdesc); 2581 break; 2582 case UDESC_VS_FORMAT_MJPEG: 2583 print_vs_format_mjpeg_descriptor( 2584 (const uvideo_vs_format_mjpeg_descriptor_t *) 2585 vsdesc); 2586 break; 2587 case UDESC_VS_FRAME_MJPEG: 2588 print_vs_frame_mjpeg_descriptor( 2589 (const uvideo_vs_frame_mjpeg_descriptor_t *) 2590 vsdesc); 2591 break; 2592 case UDESC_VS_FORMAT_DV: 2593 print_vs_format_dv_descriptor( 2594 (const uvideo_vs_format_dv_descriptor_t *) 2595 vsdesc); 2596 break; 2597 default: 2598 printf("unknown cs interface: len=%d type=0x%02x " 2599 "subtype=0x%02x", 2600 vsdesc->bLength, vsdesc->bDescriptorType, 2601 vsdesc->bDescriptorSubtype); 2602 } 2603 break; 2604 default: 2605 printf("unknown: len=%d type=0x%02x", 2606 desc->bLength, desc->bDescriptorType); 2607 break; 2608 } 2609 } 2610 2611 static void 2612 print_interface_descriptor(const usb_interface_descriptor_t *id) 2613 { 2614 printf("Interface: Len=%d Type=0x%02x " 2615 "bInterfaceNumber=0x%02x " 2616 "bAlternateSetting=0x%02x bNumEndpoints=0x%02x " 2617 "bInterfaceClass=0x%02x bInterfaceSubClass=0x%02x " 2618 "bInterfaceProtocol=0x%02x iInterface=0x%02x", 2619 id->bLength, 2620 id->bDescriptorType, 2621 id->bInterfaceNumber, 2622 id->bAlternateSetting, 2623 id->bNumEndpoints, 2624 id->bInterfaceClass, 2625 id->bInterfaceSubClass, 2626 id->bInterfaceProtocol, 2627 id->iInterface); 2628 } 2629 2630 static void 2631 print_endpoint_descriptor(const usb_endpoint_descriptor_t *desc) 2632 { 2633 printf("Endpoint: Len=%d Type=0x%02x " 2634 "bEndpointAddress=0x%02x ", 2635 desc->bLength, 2636 desc->bDescriptorType, 2637 desc->bEndpointAddress); 2638 printf("bmAttributes="); 2639 print_bitmap(&desc->bmAttributes, 1); 2640 printf(" wMaxPacketSize=%d bInterval=%d", 2641 UGETW(desc->wMaxPacketSize), 2642 desc->bInterval); 2643 } 2644 2645 static void 2646 print_vc_header_descriptor( 2647 const uvideo_vc_header_descriptor_t *desc) 2648 { 2649 printf("Interface Header: " 2650 "Len=%d Type=0x%02x Subtype=0x%02x " 2651 "bcdUVC=%d wTotalLength=%d " 2652 "dwClockFrequency=%u bInCollection=%d", 2653 desc->bLength, 2654 desc->bDescriptorType, 2655 desc->bDescriptorSubtype, 2656 UGETW(desc->bcdUVC), 2657 UGETW(desc->wTotalLength), 2658 UGETDW(desc->dwClockFrequency), 2659 desc->bInCollection); 2660 } 2661 2662 static void 2663 print_input_terminal_descriptor( 2664 const uvideo_input_terminal_descriptor_t *desc) 2665 { 2666 printf("Input Terminal: " 2667 "Len=%d Type=0x%02x Subtype=0x%02x " 2668 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2669 "iTerminal=%d", 2670 desc->bLength, 2671 desc->bDescriptorType, 2672 desc->bDescriptorSubtype, 2673 desc->bTerminalID, 2674 UGETW(desc->wTerminalType), 2675 desc->bAssocTerminal, 2676 desc->iTerminal); 2677 } 2678 2679 static void 2680 print_output_terminal_descriptor( 2681 const uvideo_output_terminal_descriptor_t *desc) 2682 { 2683 printf("Output Terminal: " 2684 "Len=%d Type=0x%02x Subtype=0x%02x " 2685 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2686 "bSourceID=%d iTerminal=%d", 2687 desc->bLength, 2688 desc->bDescriptorType, 2689 desc->bDescriptorSubtype, 2690 desc->bTerminalID, 2691 UGETW(desc->wTerminalType), 2692 desc->bAssocTerminal, 2693 desc->bSourceID, 2694 desc->iTerminal); 2695 } 2696 2697 static void 2698 print_camera_terminal_descriptor( 2699 const uvideo_camera_terminal_descriptor_t *desc) 2700 { 2701 printf("Camera Terminal: " 2702 "Len=%d Type=0x%02x Subtype=0x%02x " 2703 "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " 2704 "iTerminal=%d " 2705 "wObjectiveFocalLengthMin/Max=%d/%d " 2706 "wOcularFocalLength=%d " 2707 "bControlSize=%d ", 2708 desc->bLength, 2709 desc->bDescriptorType, 2710 desc->bDescriptorSubtype, 2711 desc->bTerminalID, 2712 UGETW(desc->wTerminalType), 2713 desc->bAssocTerminal, 2714 desc->iTerminal, 2715 UGETW(desc->wObjectiveFocalLengthMin), 2716 UGETW(desc->wObjectiveFocalLengthMax), 2717 UGETW(desc->wOcularFocalLength), 2718 desc->bControlSize); 2719 printf("bmControls="); 2720 print_bitmap(desc->bmControls, desc->bControlSize); 2721 } 2722 2723 static void 2724 print_selector_unit_descriptor( 2725 const uvideo_selector_unit_descriptor_t *desc) 2726 { 2727 int i; 2728 const uByte *b; 2729 printf("Selector Unit: " 2730 "Len=%d Type=0x%02x Subtype=0x%02x " 2731 "bUnitID=%d bNrInPins=%d ", 2732 desc->bLength, 2733 desc->bDescriptorType, 2734 desc->bDescriptorSubtype, 2735 desc->bUnitID, 2736 desc->bNrInPins); 2737 printf("baSourceIDs="); 2738 b = &desc->baSourceID[0]; 2739 for (i = 0; i < desc->bNrInPins; ++i) 2740 printf("%d ", *b++); 2741 printf("iSelector=%d", *b); 2742 } 2743 2744 static void 2745 print_processing_unit_descriptor( 2746 const uvideo_processing_unit_descriptor_t *desc) 2747 { 2748 const uByte *b; 2749 2750 printf("Processing Unit: " 2751 "Len=%d Type=0x%02x Subtype=0x%02x " 2752 "bUnitID=%d bSourceID=%d wMaxMultiplier=%d bControlSize=%d ", 2753 desc->bLength, 2754 desc->bDescriptorType, 2755 desc->bDescriptorSubtype, 2756 desc->bUnitID, 2757 desc->bSourceID, 2758 UGETW(desc->wMaxMultiplier), 2759 desc->bControlSize); 2760 printf("bmControls="); 2761 print_bitmap(desc->bmControls, desc->bControlSize); 2762 b = &desc->bControlSize + desc->bControlSize + 1; 2763 printf(" iProcessing=%d bmVideoStandards=", *b); 2764 b += 1; 2765 print_bitmap(b, 1); 2766 } 2767 2768 static void 2769 print_extension_unit_descriptor( 2770 const uvideo_extension_unit_descriptor_t *desc) 2771 { 2772 const uByte * byte; 2773 uByte controlbytes; 2774 int i; 2775 2776 printf("Extension Unit: " 2777 "Len=%d Type=0x%02x Subtype=0x%02x " 2778 "bUnitID=%d ", 2779 desc->bLength, 2780 desc->bDescriptorType, 2781 desc->bDescriptorSubtype, 2782 desc->bUnitID); 2783 2784 printf("guidExtensionCode="); 2785 usb_guid_print(&desc->guidExtensionCode); 2786 printf(" "); 2787 2788 printf("bNumControls=%d bNrInPins=%d ", 2789 desc->bNumControls, 2790 desc->bNrInPins); 2791 2792 printf("baSourceIDs="); 2793 byte = &desc->baSourceID[0]; 2794 for (i = 0; i < desc->bNrInPins; ++i) 2795 printf("%d ", *byte++); 2796 2797 controlbytes = *byte++; 2798 printf("bControlSize=%d ", controlbytes); 2799 printf("bmControls="); 2800 print_bitmap(byte, controlbytes); 2801 2802 byte += controlbytes; 2803 printf(" iExtension=%d", *byte); 2804 } 2805 2806 static void 2807 print_interrupt_endpoint_descriptor( 2808 const uvideo_vc_interrupt_endpoint_descriptor_t *desc) 2809 { 2810 printf("Interrupt Endpoint: " 2811 "Len=%d Type=0x%02x Subtype=0x%02x " 2812 "wMaxTransferSize=%d ", 2813 desc->bLength, 2814 desc->bDescriptorType, 2815 desc->bDescriptorSubtype, 2816 UGETW(desc->wMaxTransferSize)); 2817 } 2818 2819 2820 static void 2821 print_vs_output_header_descriptor( 2822 const uvideo_vs_output_header_descriptor_t *desc) 2823 { 2824 printf("Interface Output Header: " 2825 "Len=%d Type=0x%02x Subtype=0x%02x " 2826 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2827 "bTerminalLink=%d bControlSize=%d", 2828 desc->bLength, 2829 desc->bDescriptorType, 2830 desc->bDescriptorSubtype, 2831 desc->bNumFormats, 2832 UGETW(desc->wTotalLength), 2833 desc->bEndpointAddress, 2834 desc->bTerminalLink, 2835 desc->bControlSize); 2836 } 2837 2838 static void 2839 print_vs_input_header_descriptor( 2840 const uvideo_vs_input_header_descriptor_t *desc) 2841 { 2842 printf("Interface Input Header: " 2843 "Len=%d Type=0x%02x Subtype=0x%02x " 2844 "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " 2845 "bmInfo=%x bTerminalLink=%d bStillCaptureMethod=%d " 2846 "bTriggerSupport=%d bTriggerUsage=%d bControlSize=%d ", 2847 desc->bLength, 2848 desc->bDescriptorType, 2849 desc->bDescriptorSubtype, 2850 desc->bNumFormats, 2851 UGETW(desc->wTotalLength), 2852 desc->bEndpointAddress, 2853 desc->bmInfo, 2854 desc->bTerminalLink, 2855 desc->bStillCaptureMethod, 2856 desc->bTriggerSupport, 2857 desc->bTriggerUsage, 2858 desc->bControlSize); 2859 print_bitmap(desc->bmaControls, desc->bControlSize); 2860 } 2861 2862 static void 2863 print_vs_format_uncompressed_descriptor( 2864 const uvideo_vs_format_uncompressed_descriptor_t *desc) 2865 { 2866 printf("Format Uncompressed: " 2867 "Len=%d Type=0x%02x Subtype=0x%02x " 2868 "bFormatIndex=%d bNumFrameDescriptors=%d ", 2869 desc->bLength, 2870 desc->bDescriptorType, 2871 desc->bDescriptorSubtype, 2872 desc->bFormatIndex, 2873 desc->bNumFrameDescriptors); 2874 usb_guid_print(&desc->guidFormat); 2875 printf(" bBitsPerPixel=%d bDefaultFrameIndex=%d " 2876 "bAspectRatioX=%d bAspectRatioY=%d " 2877 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2878 desc->bBitsPerPixel, 2879 desc->bDefaultFrameIndex, 2880 desc->bAspectRatioX, 2881 desc->bAspectRatioY, 2882 desc->bmInterlaceFlags, 2883 desc->bCopyProtect); 2884 } 2885 2886 static void 2887 print_vs_frame_uncompressed_descriptor( 2888 const uvideo_vs_frame_uncompressed_descriptor_t *desc) 2889 { 2890 printf("Frame Uncompressed: " 2891 "Len=%d Type=0x%02x Subtype=0x%02x " 2892 "bFrameIndex=%d bmCapabilities=0x%02x " 2893 "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " 2894 "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " 2895 "bFrameIntervalType=%d", 2896 desc->bLength, 2897 desc->bDescriptorType, 2898 desc->bDescriptorSubtype, 2899 desc->bFrameIndex, 2900 desc->bmCapabilities, 2901 UGETW(desc->wWidth), 2902 UGETW(desc->wHeight), 2903 UGETDW(desc->dwMinBitRate), 2904 UGETDW(desc->dwMaxBitRate), 2905 UGETDW(desc->dwMaxVideoFrameBufferSize), 2906 UGETDW(desc->dwDefaultFrameInterval), 2907 desc->bFrameIntervalType); 2908 } 2909 2910 static void 2911 print_vs_format_mjpeg_descriptor( 2912 const uvideo_vs_format_mjpeg_descriptor_t *desc) 2913 { 2914 printf("MJPEG format: " 2915 "Len=%d Type=0x%02x Subtype=0x%02x " 2916 "bFormatIndex=%d bNumFrameDescriptors=%d bmFlags=0x%02x " 2917 "bDefaultFrameIndex=%d bAspectRatioX=%d bAspectRatioY=%d " 2918 "bmInterlaceFlags=0x%02x bCopyProtect=%d", 2919 desc->bLength, 2920 desc->bDescriptorType, 2921 desc->bDescriptorSubtype, 2922 desc->bFormatIndex, 2923 desc->bNumFrameDescriptors, 2924 desc->bmFlags, 2925 desc->bDefaultFrameIndex, 2926 desc->bAspectRatioX, 2927 desc->bAspectRatioY, 2928 desc->bmInterlaceFlags, 2929 desc->bCopyProtect); 2930 } 2931 2932 static void 2933 print_vs_frame_mjpeg_descriptor( 2934 const uvideo_vs_frame_mjpeg_descriptor_t *desc) 2935 { 2936 printf("MJPEG frame: " 2937 "Len=%d Type=0x%02x Subtype=0x%02x " 2938 "bFrameIndex=%d bmCapabilities=0x%02x " 2939 "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " 2940 "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " 2941 "bFrameIntervalType=%d", 2942 desc->bLength, 2943 desc->bDescriptorType, 2944 desc->bDescriptorSubtype, 2945 desc->bFrameIndex, 2946 desc->bmCapabilities, 2947 UGETW(desc->wWidth), 2948 UGETW(desc->wHeight), 2949 UGETDW(desc->dwMinBitRate), 2950 UGETDW(desc->dwMaxBitRate), 2951 UGETDW(desc->dwMaxVideoFrameBufferSize), 2952 UGETDW(desc->dwDefaultFrameInterval), 2953 desc->bFrameIntervalType); 2954 } 2955 2956 static void 2957 print_vs_format_dv_descriptor( 2958 const uvideo_vs_format_dv_descriptor_t *desc) 2959 { 2960 printf("MJPEG format: " 2961 "Len=%d Type=0x%02x Subtype=0x%02x " 2962 "bFormatIndex=%d dwMaxVideoFrameBufferSize=%u " 2963 "bFormatType/Rate=%d bFormatType/Format=%d", 2964 desc->bLength, 2965 desc->bDescriptorType, 2966 desc->bDescriptorSubtype, 2967 desc->bFormatIndex, 2968 UGETDW(desc->dwMaxVideoFrameBufferSize), 2969 UVIDEO_GET_DV_FREQ(desc->bFormatType), 2970 UVIDEO_GET_DV_FORMAT(desc->bFormatType)); 2971 } 2972 2973 #endif /* !UVIDEO_DEBUG */ 2974 2975 static const usb_descriptor_t * 2976 usb_desc_iter_peek_next(usbd_desc_iter_t *iter) 2977 { 2978 const usb_descriptor_t *desc; 2979 2980 if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) { 2981 if (iter->cur != iter->end) 2982 printf("usb_desc_iter_peek_next: bad descriptor\n"); 2983 return NULL; 2984 } 2985 desc = (const usb_descriptor_t *)iter->cur; 2986 if (desc->bLength == 0) { 2987 printf("usb_desc_iter_peek_next: descriptor length = 0\n"); 2988 return NULL; 2989 } 2990 if (iter->cur + desc->bLength > iter->end) { 2991 printf("usb_desc_iter_peek_next: descriptor length too large\n"); 2992 return NULL; 2993 } 2994 return desc; 2995 } 2996 2997 /* Return the next interface descriptor, skipping over any other 2998 * descriptors. Returns NULL at the end or on error. */ 2999 static const usb_interface_descriptor_t * 3000 usb_desc_iter_next_interface(usbd_desc_iter_t *iter) 3001 { 3002 const usb_descriptor_t *desc; 3003 3004 while ((desc = usb_desc_iter_peek_next(iter)) != NULL && 3005 desc->bDescriptorType != UDESC_INTERFACE) 3006 { 3007 usb_desc_iter_next(iter); 3008 } 3009 3010 return (const usb_interface_descriptor_t *)usb_desc_iter_next(iter); 3011 } 3012 3013 /* Returns the next non-interface descriptor, returning NULL when the 3014 * next descriptor would be an interface descriptor. */ 3015 static const usb_descriptor_t * 3016 usb_desc_iter_next_non_interface(usbd_desc_iter_t *iter) 3017 { 3018 const usb_descriptor_t *desc; 3019 3020 if ((desc = usb_desc_iter_peek_next(iter)) != NULL && 3021 desc->bDescriptorType != UDESC_INTERFACE) 3022 { 3023 return (usb_desc_iter_next(iter)); 3024 } else { 3025 return NULL; 3026 } 3027 } 3028 3029 #ifdef UVIDEO_DEBUG 3030 static void 3031 usb_guid_print(const usb_guid_t *guid) 3032 { 3033 printf("%04X-%02X-%02X-", 3034 UGETDW(guid->data1), 3035 UGETW(guid->data2), 3036 UGETW(guid->data3)); 3037 printf("%02X%02X-", 3038 guid->data4[0], 3039 guid->data4[1]); 3040 printf("%02X%02X%02X%02X%02X%02X", 3041 guid->data4[2], 3042 guid->data4[3], 3043 guid->data4[4], 3044 guid->data4[5], 3045 guid->data4[6], 3046 guid->data4[7]); 3047 } 3048 #endif /* !UVIDEO_DEBUG */ 3049 3050 /* Returns less than zero, zero, or greater than zero if uguid is less 3051 * than, equal to, or greater than guid. */ 3052 static int 3053 usb_guid_cmp(const usb_guid_t *uguid, const guid_t *guid) 3054 { 3055 if (guid->data1 > UGETDW(uguid->data1)) 3056 return 1; 3057 else if (guid->data1 < UGETDW(uguid->data1)) 3058 return -1; 3059 3060 if (guid->data2 > UGETW(uguid->data2)) 3061 return 1; 3062 else if (guid->data2 < UGETW(uguid->data2)) 3063 return -1; 3064 3065 if (guid->data3 > UGETW(uguid->data3)) 3066 return 1; 3067 else if (guid->data3 < UGETW(uguid->data3)) 3068 return -1; 3069 3070 return (memcmp(guid->data4, uguid->data4, 8)); 3071 } 3072
Indexes created Wed Oct 22 06:10:02 GMT 2025