| 1 | /* $NetBSD: uvideo.c,v 1.43 2016/07/07 06:55:42 msaitoh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2008 Patrick Mahoney |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code was written by Patrick Mahoney (pat@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 1.43 2016/07/07 06:55:42 msaitoh Exp $" ); |
| 46 | |
| 47 | #ifdef _KERNEL_OPT |
| 48 | #include "opt_usb.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/kmem.h> |
| 59 | #include <sys/device.h> |
| 60 | #include <sys/ioctl.h> |
| 61 | #include <sys/uio.h> |
| 62 | #include <sys/file.h> |
| 63 | #include <sys/select.h> |
| 64 | #include <sys/proc.h> |
| 65 | #include <sys/conf.h> |
| 66 | #include <sys/vnode.h> |
| 67 | #include <sys/poll.h> |
| 68 | #include <sys/queue.h> /* SLIST */ |
| 69 | #include <sys/kthread.h> |
| 70 | #include <sys/bus.h> |
| 71 | |
| 72 | #include <sys/videoio.h> |
| 73 | #include <dev/video_if.h> |
| 74 | |
| 75 | #include <dev/usb/usb.h> |
| 76 | #include <dev/usb/usbdi.h> |
| 77 | #include <dev/usb/usbdivar.h> |
| 78 | #include <dev/usb/usbdi_util.h> |
| 79 | #include <dev/usb/usb_quirks.h> |
| 80 | |
| 81 | #include <dev/usb/uvideoreg.h> |
| 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) printf x; } while (0) |
| 90 | #define DPRINTFN(n,x) do { if (uvideodebug>(n)) printf 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 | struct usbd_xfer *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 | struct usbd_pipe *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 | struct usbd_pipe *bx_pipe; |
| 203 | struct usbd_xfer *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 | struct usbd_interface *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 | device_t sc_dev; /* base device */ |
| 243 | struct usbd_device *sc_udev; /* device */ |
| 244 | struct usbd_interface *sc_iface; /* interface handle */ |
| 245 | int sc_ifaceno; /* interface number */ |
| 246 | char *sc_devname; |
| 247 | |
| 248 | device_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 | char sc_businfo[32]; |
| 261 | }; |
| 262 | |
| 263 | int uvideo_match(device_t, cfdata_t, void *); |
| 264 | void uvideo_attach(device_t, device_t, void *); |
| 265 | int uvideo_detach(device_t, int); |
| 266 | void uvideo_childdet(device_t, device_t); |
| 267 | int uvideo_activate(device_t, enum devact); |
| 268 | |
| 269 | static int uvideo_open(void *, int); |
| 270 | static void uvideo_close(void *); |
| 271 | static const char * uvideo_get_devname(void *); |
| 272 | static const char * uvideo_get_businfo(void *); |
| 273 | |
| 274 | static int uvideo_enum_format(void *, uint32_t, struct video_format *); |
| 275 | static int uvideo_get_format(void *, struct video_format *); |
| 276 | static int uvideo_set_format(void *, struct video_format *); |
| 277 | static int uvideo_try_format(void *, struct video_format *); |
| 278 | static int uvideo_start_transfer(void *); |
| 279 | static int uvideo_stop_transfer(void *); |
| 280 | |
| 281 | static int uvideo_get_control_group(void *, |
| 282 | struct video_control_group *); |
| 283 | static int uvideo_set_control_group(void *, |
| 284 | const struct video_control_group *); |
| 285 | |
| 286 | static usbd_status uvideo_init_control( |
| 287 | struct uvideo_softc *, |
| 288 | const usb_interface_descriptor_t *, |
| 289 | usbd_desc_iter_t *); |
| 290 | static usbd_status uvideo_init_collection( |
| 291 | struct uvideo_softc *, |
| 292 | const usb_interface_descriptor_t *, |
| 293 | usbd_desc_iter_t *); |
| 294 | |
| 295 | /* Functions for unit & terminal descriptors */ |
| 296 | static struct uvideo_unit * uvideo_unit_alloc(const uvideo_descriptor_t *); |
| 297 | static usbd_status uvideo_unit_init(struct uvideo_unit *, |
| 298 | const uvideo_descriptor_t *); |
| 299 | static void uvideo_unit_free(struct uvideo_unit *); |
| 300 | static usbd_status uvideo_unit_alloc_controls(struct uvideo_unit *, |
| 301 | uint8_t, |
| 302 | const uint8_t *); |
| 303 | static void uvideo_unit_free_controls(struct uvideo_unit *); |
| 304 | static usbd_status uvideo_unit_alloc_sources(struct uvideo_unit *, |
| 305 | uint8_t, |
| 306 | const uint8_t *); |
| 307 | static void uvideo_unit_free_sources(struct uvideo_unit *); |
| 308 | |
| 309 | |
| 310 | |
| 311 | |
| 312 | /* Functions for uvideo_stream, primary unit associated with a video |
| 313 | * driver or device file. */ |
| 314 | static struct uvideo_stream * uvideo_find_stream(struct uvideo_softc *, |
| 315 | uint8_t); |
| 316 | #if 0 |
| 317 | static struct uvideo_format * uvideo_stream_find_format( |
| 318 | struct uvideo_stream *, |
| 319 | uint8_t, uint8_t); |
| 320 | #endif |
| 321 | static struct uvideo_format * uvideo_stream_guess_format( |
| 322 | struct uvideo_stream *, |
| 323 | enum video_pixel_format, uint32_t, uint32_t); |
| 324 | static struct uvideo_stream * uvideo_stream_alloc(void); |
| 325 | static usbd_status uvideo_stream_init( |
| 326 | struct uvideo_stream *, |
| 327 | struct uvideo_softc *, |
| 328 | const usb_interface_descriptor_t *, |
| 329 | uint8_t); |
| 330 | static usbd_status uvideo_stream_init_desc( |
| 331 | struct uvideo_stream *, |
| 332 | const usb_interface_descriptor_t *, |
| 333 | usbd_desc_iter_t *); |
| 334 | static usbd_status uvideo_stream_init_frame_based_format( |
| 335 | struct uvideo_stream *, |
| 336 | const uvideo_descriptor_t *, |
| 337 | usbd_desc_iter_t *); |
| 338 | static void uvideo_stream_free(struct uvideo_stream *); |
| 339 | |
| 340 | static int uvideo_stream_start_xfer(struct uvideo_stream *); |
| 341 | static int uvideo_stream_stop_xfer(struct uvideo_stream *); |
| 342 | static usbd_status uvideo_stream_recv_process(struct uvideo_stream *, |
| 343 | uint8_t *, uint32_t); |
| 344 | static usbd_status uvideo_stream_recv_isoc_start(struct uvideo_stream *); |
| 345 | static usbd_status uvideo_stream_recv_isoc_start1(struct uvideo_isoc *); |
| 346 | static void uvideo_stream_recv_isoc_complete(struct usbd_xfer *, |
| 347 | void *, |
| 348 | usbd_status); |
| 349 | static void uvideo_stream_recv_bulk_transfer(void *); |
| 350 | |
| 351 | /* format probe and commit */ |
| 352 | #define uvideo_stream_probe(vs, act, data) \ |
| 353 | (uvideo_stream_probe_and_commit((vs), (act), \ |
| 354 | UVIDEO_VS_PROBE_CONTROL, (data))) |
| 355 | #define uvideo_stream_commit(vs, act, data) \ |
| 356 | (uvideo_stream_probe_and_commit((vs), (act), \ |
| 357 | UVIDEO_VS_COMMIT_CONTROL, (data))) |
| 358 | static usbd_status uvideo_stream_probe_and_commit(struct uvideo_stream *, |
| 359 | uint8_t, uint8_t, |
| 360 | void *); |
| 361 | static void uvideo_init_probe_data(uvideo_probe_and_commit_data_t *); |
| 362 | |
| 363 | |
| 364 | static const usb_descriptor_t * usb_desc_iter_peek_next(usbd_desc_iter_t *); |
| 365 | static const usb_interface_descriptor_t * usb_desc_iter_next_interface( |
| 366 | usbd_desc_iter_t *); |
| 367 | static const usb_descriptor_t * usb_desc_iter_next_non_interface( |
| 368 | usbd_desc_iter_t *); |
| 369 | |
| 370 | static int usb_guid_cmp(const usb_guid_t *, const guid_t *); |
| 371 | |
| 372 | |
| 373 | CFATTACH_DECL2_NEW(uvideo, sizeof(struct uvideo_softc), |
| 374 | uvideo_match, uvideo_attach, uvideo_detach, uvideo_activate, NULL, |
| 375 | uvideo_childdet); |
| 376 | |
| 377 | extern struct cfdriver uvideo_cd; |
| 378 | |
| 379 | |
| 380 | static const struct video_hw_if uvideo_hw_if = { |
| 381 | .open = uvideo_open, |
| 382 | .close = uvideo_close, |
| 383 | .get_devname = uvideo_get_devname, |
| 384 | .get_businfo = uvideo_get_businfo, |
| 385 | .enum_format = uvideo_enum_format, |
| 386 | .get_format = uvideo_get_format, |
| 387 | .set_format = uvideo_set_format, |
| 388 | .try_format = uvideo_try_format, |
| 389 | .start_transfer = uvideo_start_transfer, |
| 390 | .stop_transfer = uvideo_stop_transfer, |
| 391 | .control_iter_init = NULL, |
| 392 | .control_iter_next = NULL, |
| 393 | .get_control_desc_group = NULL, |
| 394 | .get_control_group = uvideo_get_control_group, |
| 395 | .set_control_group = uvideo_set_control_group, |
| 396 | }; |
| 397 | |
| 398 | #ifdef UVIDEO_DEBUG |
| 399 | /* Some functions to print out descriptors. Mostly useless other than |
| 400 | * debugging/exploration purposes. */ |
| 401 | static void usb_guid_print(const usb_guid_t *); |
| 402 | static void print_descriptor(const usb_descriptor_t *); |
| 403 | static void print_interface_descriptor(const usb_interface_descriptor_t *); |
| 404 | static void print_endpoint_descriptor(const usb_endpoint_descriptor_t *); |
| 405 | |
| 406 | static void print_vc_descriptor(const usb_descriptor_t *); |
| 407 | static void print_vs_descriptor(const usb_descriptor_t *); |
| 408 | |
| 409 | static void print_vc_header_descriptor( |
| 410 | const uvideo_vc_header_descriptor_t *); |
| 411 | static void print_input_terminal_descriptor( |
| 412 | const uvideo_input_terminal_descriptor_t *); |
| 413 | static void print_output_terminal_descriptor( |
| 414 | const uvideo_output_terminal_descriptor_t *); |
| 415 | static void print_camera_terminal_descriptor( |
| 416 | const uvideo_camera_terminal_descriptor_t *); |
| 417 | static void print_selector_unit_descriptor( |
| 418 | const uvideo_selector_unit_descriptor_t *); |
| 419 | static void print_processing_unit_descriptor( |
| 420 | const uvideo_processing_unit_descriptor_t *); |
| 421 | static void print_extension_unit_descriptor( |
| 422 | const uvideo_extension_unit_descriptor_t *); |
| 423 | static void print_interrupt_endpoint_descriptor( |
| 424 | const uvideo_vc_interrupt_endpoint_descriptor_t *); |
| 425 | |
| 426 | static void print_vs_input_header_descriptor( |
| 427 | const uvideo_vs_input_header_descriptor_t *); |
| 428 | static void print_vs_output_header_descriptor( |
| 429 | const uvideo_vs_output_header_descriptor_t *); |
| 430 | |
| 431 | static void print_vs_format_uncompressed_descriptor( |
| 432 | const uvideo_vs_format_uncompressed_descriptor_t *); |
| 433 | static void print_vs_frame_uncompressed_descriptor( |
| 434 | const uvideo_vs_frame_uncompressed_descriptor_t *); |
| 435 | static void print_vs_format_mjpeg_descriptor( |
| 436 | const uvideo_vs_format_mjpeg_descriptor_t *); |
| 437 | static void print_vs_frame_mjpeg_descriptor( |
| 438 | const uvideo_vs_frame_mjpeg_descriptor_t *); |
| 439 | static void print_vs_format_dv_descriptor( |
| 440 | const uvideo_vs_format_dv_descriptor_t *); |
| 441 | #endif /* !UVIDEO_DEBUG */ |
| 442 | |
| 443 | #define GET(type, descp, field) (((const type *)(descp))->field) |
| 444 | #define GETP(type, descp, field) (&(((const type *)(descp))->field)) |
| 445 | |
| 446 | /* Given a format descriptor and frame descriptor, copy values common |
| 447 | * to all formats into a struct uvideo_format. */ |
| 448 | #define UVIDEO_FORMAT_INIT_FRAME_BASED(format_type, format_desc, \ |
| 449 | frame_type, frame_desc, \ |
| 450 | format) \ |
| 451 | do { \ |
| 452 | UVIDEO_FORMAT_SET_FORMAT_INDEX( \ |
| 453 | format, \ |
| 454 | GET(format_type, format_desc, bFormatIndex)); \ |
| 455 | UVIDEO_FORMAT_SET_FRAME_INDEX( \ |
| 456 | format, \ |
| 457 | GET(frame_type, frame_desc, bFrameIndex)); \ |
| 458 | format->format.width = \ |
| 459 | UGETW(GET(frame_type, frame_desc, wWidth)); \ |
| 460 | format->format.height = \ |
| 461 | UGETW(GET(frame_type, frame_desc, wHeight)); \ |
| 462 | format->format.aspect_x = \ |
| 463 | GET(format_type, format_desc, bAspectRatioX); \ |
| 464 | format->format.aspect_y = \ |
| 465 | GET(format_type, format_desc, bAspectRatioY); \ |
| 466 | } while (0) |
| 467 | |
| 468 | |
| 469 | int |
| 470 | uvideo_match(device_t parent, cfdata_t match, void *aux) |
| 471 | { |
| 472 | struct usbif_attach_arg *uiaa = aux; |
| 473 | |
| 474 | /* TODO: May need to change in the future to work with |
| 475 | * Interface Association Descriptor. */ |
| 476 | |
| 477 | /* Trigger on the Video Control Interface which must be present */ |
| 478 | if (uiaa->uiaa_class == UICLASS_VIDEO && |
| 479 | uiaa->uiaa_subclass == UISUBCLASS_VIDEOCONTROL) |
| 480 | return UMATCH_IFACECLASS_IFACESUBCLASS; |
| 481 | |
| 482 | return UMATCH_NONE; |
| 483 | } |
| 484 | |
| 485 | void |
| 486 | uvideo_attach(device_t parent, device_t self, void *aux) |
| 487 | { |
| 488 | struct uvideo_softc *sc = device_private(self); |
| 489 | struct usbif_attach_arg *uiaa = aux; |
| 490 | usbd_desc_iter_t iter; |
| 491 | const usb_interface_descriptor_t *ifdesc; |
| 492 | struct uvideo_stream *vs; |
| 493 | usbd_status err; |
| 494 | uint8_t ifaceidx; |
| 495 | |
| 496 | sc->sc_dev = self; |
| 497 | |
| 498 | sc->sc_devname = usbd_devinfo_alloc(uiaa->uiaa_device, 0); |
| 499 | |
| 500 | aprint_naive("\n" ); |
| 501 | aprint_normal(": %s\n" , sc->sc_devname); |
| 502 | |
| 503 | sc->sc_udev = uiaa->uiaa_device; |
| 504 | sc->sc_iface = uiaa->uiaa_iface; |
| 505 | sc->sc_ifaceno = uiaa->uiaa_ifaceno; |
| 506 | sc->sc_dying = 0; |
| 507 | sc->sc_state = UVIDEO_STATE_CLOSED; |
| 508 | SLIST_INIT(&sc->sc_stream_list); |
| 509 | snprintf(sc->sc_businfo, sizeof(sc->sc_businfo), "usb:%08x" , |
| 510 | sc->sc_udev->ud_cookie.cookie); |
| 511 | |
| 512 | #ifdef UVIDEO_DEBUG |
| 513 | /* Debugging dump of descriptors. TODO: move this to userspace |
| 514 | * via a custom IOCTL or something. */ |
| 515 | const usb_descriptor_t *desc; |
| 516 | usb_desc_iter_init(sc->sc_udev, &iter); |
| 517 | while ((desc = usb_desc_iter_next(&iter)) != NULL) { |
| 518 | /* print out all descriptors */ |
| 519 | printf("uvideo_attach: " ); |
| 520 | print_descriptor(desc); |
| 521 | } |
| 522 | #endif /* !UVIDEO_DEBUG */ |
| 523 | |
| 524 | /* iterate through interface descriptors and initialize softc */ |
| 525 | usb_desc_iter_init(sc->sc_udev, &iter); |
| 526 | for (ifaceidx = 0; |
| 527 | (ifdesc = usb_desc_iter_next_interface(&iter)) != NULL; |
| 528 | ++ifaceidx) |
| 529 | { |
| 530 | if (ifdesc->bInterfaceClass != UICLASS_VIDEO) { |
| 531 | DPRINTFN(50, ("uvideo_attach: " |
| 532 | "ignoring non-uvc interface: " |
| 533 | "len=%d type=0x%02x " |
| 534 | "class=0x%02x subclass=0x%02x\n" , |
| 535 | ifdesc->bLength, |
| 536 | ifdesc->bDescriptorType, |
| 537 | ifdesc->bInterfaceClass, |
| 538 | ifdesc->bInterfaceSubClass)); |
| 539 | continue; |
| 540 | } |
| 541 | |
| 542 | switch (ifdesc->bInterfaceSubClass) { |
| 543 | case UISUBCLASS_VIDEOCONTROL: |
| 544 | err = uvideo_init_control(sc, ifdesc, &iter); |
| 545 | if (err != USBD_NORMAL_COMPLETION) { |
| 546 | DPRINTF(("uvideo_attach: error with interface " |
| 547 | "%d, VideoControl, " |
| 548 | "descriptor len=%d type=0x%02x: " |
| 549 | "%s (%d)\n" , |
| 550 | ifdesc->bInterfaceNumber, |
| 551 | ifdesc->bLength, |
| 552 | ifdesc->bDescriptorType, |
| 553 | usbd_errstr(err), err)); |
| 554 | } |
| 555 | break; |
| 556 | case UISUBCLASS_VIDEOSTREAMING: |
| 557 | vs = uvideo_find_stream(sc, ifdesc->bInterfaceNumber); |
| 558 | if (vs == NULL) { |
| 559 | vs = uvideo_stream_alloc(); |
| 560 | if (vs == NULL) { |
| 561 | DPRINTF(("uvideo_attach: " |
| 562 | "failed to alloc stream\n" )); |
| 563 | err = USBD_NOMEM; |
| 564 | goto bad; |
| 565 | } |
| 566 | err = uvideo_stream_init(vs, sc, ifdesc, |
| 567 | ifaceidx); |
| 568 | if (err != USBD_NORMAL_COMPLETION) { |
| 569 | DPRINTF(("uvideo_attach: " |
| 570 | "error initializing stream: " |
| 571 | "%s (%d)\n" , |
| 572 | usbd_errstr(err), err)); |
| 573 | goto bad; |
| 574 | } |
| 575 | } |
| 576 | err = uvideo_stream_init_desc(vs, ifdesc, &iter); |
| 577 | if (err != USBD_NORMAL_COMPLETION) { |
| 578 | DPRINTF(("uvideo_attach: " |
| 579 | "error initializing stream descriptor: " |
| 580 | "%s (%d)\n" , |
| 581 | usbd_errstr(err), err)); |
| 582 | goto bad; |
| 583 | } |
| 584 | /* TODO: for now, set (each) stream to stream_in. */ |
| 585 | sc->sc_stream_in = vs; |
| 586 | break; |
| 587 | case UISUBCLASS_VIDEOCOLLECTION: |
| 588 | err = uvideo_init_collection(sc, ifdesc, &iter); |
| 589 | if (err != USBD_NORMAL_COMPLETION) { |
| 590 | DPRINTF(("uvideo_attach: error with interface " |
| 591 | "%d, VideoCollection, " |
| 592 | "descriptor len=%d type=0x%02x: " |
| 593 | "%s (%d)\n" , |
| 594 | ifdesc->bInterfaceNumber, |
| 595 | ifdesc->bLength, |
| 596 | ifdesc->bDescriptorType, |
| 597 | usbd_errstr(err), err)); |
| 598 | goto bad; |
| 599 | } |
| 600 | break; |
| 601 | default: |
| 602 | DPRINTF(("uvideo_attach: unknown UICLASS_VIDEO " |
| 603 | "subclass=0x%02x\n" , |
| 604 | ifdesc->bInterfaceSubClass)); |
| 605 | break; |
| 606 | } |
| 607 | |
| 608 | } |
| 609 | |
| 610 | |
| 611 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
| 612 | |
| 613 | if (!pmf_device_register(self, NULL, NULL)) |
| 614 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 615 | |
| 616 | sc->sc_videodev = video_attach_mi(&uvideo_hw_if, sc->sc_dev); |
| 617 | DPRINTF(("uvideo_attach: attached video driver at %p\n" , |
| 618 | sc->sc_videodev)); |
| 619 | |
| 620 | return; |
| 621 | |
| 622 | bad: |
| 623 | if (err != USBD_NORMAL_COMPLETION) { |
| 624 | DPRINTF(("uvideo_attach: error: %s (%d)\n" , |
| 625 | usbd_errstr(err), err)); |
| 626 | } |
| 627 | return; |
| 628 | } |
| 629 | |
| 630 | |
| 631 | int |
| 632 | uvideo_activate(device_t self, enum devact act) |
| 633 | { |
| 634 | struct uvideo_softc *sc = device_private(self); |
| 635 | |
| 636 | switch (act) { |
| 637 | case DVACT_DEACTIVATE: |
| 638 | DPRINTF(("uvideo_activate: deactivating\n" )); |
| 639 | sc->sc_dying = 1; |
| 640 | return 0; |
| 641 | default: |
| 642 | return EOPNOTSUPP; |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | |
| 647 | /* Detach child (video interface) */ |
| 648 | void |
| 649 | uvideo_childdet(device_t self, device_t child) |
| 650 | { |
| 651 | struct uvideo_softc *sc = device_private(self); |
| 652 | |
| 653 | KASSERT(sc->sc_videodev == child); |
| 654 | sc->sc_videodev = NULL; |
| 655 | } |
| 656 | |
| 657 | |
| 658 | int |
| 659 | uvideo_detach(device_t self, int flags) |
| 660 | { |
| 661 | struct uvideo_softc *sc; |
| 662 | struct uvideo_stream *vs; |
| 663 | int rv; |
| 664 | |
| 665 | sc = device_private(self); |
| 666 | rv = 0; |
| 667 | |
| 668 | sc->sc_dying = 1; |
| 669 | |
| 670 | pmf_device_deregister(self); |
| 671 | |
| 672 | /* TODO: close the device if it is currently opened? Or will |
| 673 | * close be called automatically? */ |
| 674 | |
| 675 | while (!SLIST_EMPTY(&sc->sc_stream_list)) { |
| 676 | vs = SLIST_FIRST(&sc->sc_stream_list); |
| 677 | SLIST_REMOVE_HEAD(&sc->sc_stream_list, entries); |
| 678 | uvideo_stream_stop_xfer(vs); |
| 679 | uvideo_stream_free(vs); |
| 680 | } |
| 681 | |
| 682 | #if 0 |
| 683 | /* Wait for outstanding request to complete. TODO: what is |
| 684 | * appropriate here? */ |
| 685 | usbd_delay_ms(sc->sc_udev, 1000); |
| 686 | #endif |
| 687 | |
| 688 | DPRINTFN(15, ("uvideo: detaching from %s\n" , |
| 689 | device_xname(sc->sc_dev))); |
| 690 | |
| 691 | if (sc->sc_videodev != NULL) |
| 692 | rv = config_detach(sc->sc_videodev, flags); |
| 693 | |
| 694 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
| 695 | |
| 696 | usbd_devinfo_free(sc->sc_devname); |
| 697 | |
| 698 | return rv; |
| 699 | } |
| 700 | |
| 701 | /* Search the stream list for a stream matching the interface number. |
| 702 | * This is an O(n) search, but most devices should have only one or at |
| 703 | * most two streams. */ |
| 704 | static struct uvideo_stream * |
| 705 | uvideo_find_stream(struct uvideo_softc *sc, uint8_t ifaceno) |
| 706 | { |
| 707 | struct uvideo_stream *vs; |
| 708 | |
| 709 | SLIST_FOREACH(vs, &sc->sc_stream_list, entries) { |
| 710 | if (vs->vs_ifaceno == ifaceno) |
| 711 | return vs; |
| 712 | } |
| 713 | |
| 714 | return NULL; |
| 715 | } |
| 716 | |
| 717 | /* Search the format list for the given format and frame index. This |
| 718 | * might be improved through indexing, but the format and frame count |
| 719 | * is unknown ahead of time (only after iterating through the |
| 720 | * usb device descriptors). */ |
| 721 | #if 0 |
| 722 | static struct uvideo_format * |
| 723 | uvideo_stream_find_format(struct uvideo_stream *vs, |
| 724 | uint8_t format_index, uint8_t frame_index) |
| 725 | { |
| 726 | struct uvideo_format *format; |
| 727 | |
| 728 | SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { |
| 729 | if (UVIDEO_FORMAT_GET_FORMAT_INDEX(format) == format_index && |
| 730 | UVIDEO_FORMAT_GET_FRAME_INDEX(format) == frame_index) |
| 731 | return format; |
| 732 | } |
| 733 | return NULL; |
| 734 | } |
| 735 | #endif |
| 736 | |
| 737 | static struct uvideo_format * |
| 738 | uvideo_stream_guess_format(struct uvideo_stream *vs, |
| 739 | enum video_pixel_format pixel_format, |
| 740 | uint32_t width, uint32_t height) |
| 741 | { |
| 742 | struct uvideo_format *format, *gformat = NULL; |
| 743 | |
| 744 | SIMPLEQ_FOREACH(format, &vs->vs_formats, entries) { |
| 745 | if (format->format.pixel_format != pixel_format) |
| 746 | continue; |
| 747 | if (format->format.width <= width && |
| 748 | format->format.height <= height) { |
| 749 | if (gformat == NULL || |
| 750 | (gformat->format.width < format->format.width && |
| 751 | gformat->format.height < format->format.height)) |
| 752 | gformat = format; |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | return gformat; |
| 757 | } |
| 758 | |
| 759 | static struct uvideo_stream * |
| 760 | uvideo_stream_alloc(void) |
| 761 | { |
| 762 | return kmem_alloc(sizeof(struct uvideo_stream), KM_NOSLEEP); |
| 763 | } |
| 764 | |
| 765 | |
| 766 | static usbd_status |
| 767 | uvideo_init_control(struct uvideo_softc *sc, |
| 768 | const usb_interface_descriptor_t *ifdesc, |
| 769 | usbd_desc_iter_t *iter) |
| 770 | { |
| 771 | const usb_descriptor_t *desc; |
| 772 | const uvideo_descriptor_t *uvdesc; |
| 773 | usbd_desc_iter_t orig; |
| 774 | uint8_t i, j, nunits; |
| 775 | |
| 776 | /* save original iterator state */ |
| 777 | memcpy(&orig, iter, sizeof(orig)); |
| 778 | |
| 779 | /* count number of units and terminals */ |
| 780 | nunits = 0; |
| 781 | while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { |
| 782 | uvdesc = (const uvideo_descriptor_t *)desc; |
| 783 | |
| 784 | if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) |
| 785 | continue; |
| 786 | if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || |
| 787 | uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) |
| 788 | continue; |
| 789 | ++nunits; |
| 790 | } |
| 791 | |
| 792 | if (nunits == 0) { |
| 793 | DPRINTF(("uvideo_init_control: no units\n" )); |
| 794 | return USBD_NORMAL_COMPLETION; |
| 795 | } |
| 796 | |
| 797 | i = 0; |
| 798 | |
| 799 | /* allocate space for units */ |
| 800 | sc->sc_nunits = nunits; |
| 801 | sc->sc_unit = kmem_alloc(sizeof(*sc->sc_unit) * nunits, KM_SLEEP); |
| 802 | if (sc->sc_unit == NULL) |
| 803 | goto enomem; |
| 804 | |
| 805 | /* restore original iterator state */ |
| 806 | memcpy(iter, &orig, sizeof(orig)); |
| 807 | |
| 808 | /* iterate again, initializing the units */ |
| 809 | while ((desc = usb_desc_iter_next_non_interface(iter)) != NULL) { |
| 810 | uvdesc = (const uvideo_descriptor_t *)desc; |
| 811 | |
| 812 | if (uvdesc->bDescriptorType != UDESC_CS_INTERFACE) |
| 813 | continue; |
| 814 | if (uvdesc->bDescriptorSubtype < UDESC_INPUT_TERMINAL || |
| 815 | uvdesc->bDescriptorSubtype > UDESC_EXTENSION_UNIT) |
| 816 | continue; |
| 817 | |
| 818 | sc->sc_unit[i] = uvideo_unit_alloc(uvdesc); |
| 819 | /* TODO: free other units before returning? */ |
| 820 | if (sc->sc_unit[i] == NULL) |
| 821 | goto enomem; |
| 822 | ++i; |
| 823 | } |
| 824 | |
| 825 | return USBD_NORMAL_COMPLETION; |
| 826 | |
| 827 | enomem: |
| 828 | if (sc->sc_unit != NULL) { |
| 829 | for (j = 0; j < i; ++j) { |
| 830 | uvideo_unit_free(sc->sc_unit[j]); |
| 831 | sc->sc_unit[j] = NULL; |
| 832 | } |
| 833 | kmem_free(sc->sc_unit, sizeof(*sc->sc_unit) * nunits); |
| 834 | sc->sc_unit = NULL; |
| 835 | } |
| 836 | sc->sc_nunits = 0; |
| 837 | |
| 838 | return USBD_NOMEM; |
| 839 | } |
| 840 | |
| 841 | static usbd_status |
| 842 | uvideo_init_collection(struct uvideo_softc *sc, |
| 843 | const usb_interface_descriptor_t *ifdesc, |
| 844 | usbd_desc_iter_t *iter) |
| 845 | { |
| 846 | DPRINTF(("uvideo: ignoring Video Collection\n" )); |
| 847 | return USBD_NORMAL_COMPLETION; |
| 848 | } |
| 849 | |
| 850 | /* Allocates space for and initializes a uvideo unit based on the |
| 851 | * given descriptor. Returns NULL with bad descriptor or ENOMEM. */ |
| 852 | static struct uvideo_unit * |
| 853 | uvideo_unit_alloc(const uvideo_descriptor_t *desc) |
| 854 | { |
| 855 | struct uvideo_unit *vu; |
| 856 | usbd_status err; |
| 857 | |
| 858 | if (desc->bDescriptorType != UDESC_CS_INTERFACE) |
| 859 | return NULL; |
| 860 | |
| 861 | vu = kmem_alloc(sizeof(*vu), KM_SLEEP); |
| 862 | if (vu == NULL) |
| 863 | return NULL; |
| 864 | |
| 865 | err = uvideo_unit_init(vu, desc); |
| 866 | if (err != USBD_NORMAL_COMPLETION) { |
| 867 | DPRINTF(("uvideo_unit_alloc: error initializing unit: " |
| 868 | "%s (%d)\n" , usbd_errstr(err), err)); |
| 869 | kmem_free(vu, sizeof(*vu)); |
| 870 | return NULL; |
| 871 | } |
| 872 | |
| 873 | return vu; |
| 874 | } |
| 875 | |
| 876 | static usbd_status |
| 877 | uvideo_unit_init(struct uvideo_unit *vu, const uvideo_descriptor_t *desc) |
| 878 | { |
| 879 | struct uvideo_camera_terminal *ct; |
| 880 | struct uvideo_processing_unit *pu; |
| 881 | |
| 882 | const uvideo_input_terminal_descriptor_t *input; |
| 883 | const uvideo_camera_terminal_descriptor_t *camera; |
| 884 | const uvideo_selector_unit_descriptor_t *selector; |
| 885 | const uvideo_processing_unit_descriptor_t *processing; |
| 886 | const uvideo_extension_unit_descriptor_t *extension; |
| 887 | |
| 888 | memset(vu, 0, sizeof(*vu)); |
| 889 | |
| 890 | switch (desc->bDescriptorSubtype) { |
| 891 | case UDESC_INPUT_TERMINAL: |
| 892 | input = (const uvideo_input_terminal_descriptor_t *)desc; |
| 893 | switch (UGETW(input->wTerminalType)) { |
| 894 | case UVIDEO_ITT_CAMERA: |
| 895 | camera = |
| 896 | (const uvideo_camera_terminal_descriptor_t *)desc; |
| 897 | ct = &vu->u.vu_camera; |
| 898 | |
| 899 | ct->ct_objective_focal_min = |
| 900 | UGETW(camera->wObjectiveFocalLengthMin); |
| 901 | ct->ct_objective_focal_max = |
| 902 | UGETW(camera->wObjectiveFocalLengthMax); |
| 903 | ct->ct_ocular_focal_length = |
| 904 | UGETW(camera->wOcularFocalLength); |
| 905 | |
| 906 | uvideo_unit_alloc_controls(vu, camera->bControlSize, |
| 907 | camera->bmControls); |
| 908 | break; |
| 909 | default: |
| 910 | DPRINTF(("uvideo_unit_init: " |
| 911 | "unknown input terminal type 0x%04x\n" , |
| 912 | UGETW(input->wTerminalType))); |
| 913 | return USBD_INVAL; |
| 914 | } |
| 915 | break; |
| 916 | case UDESC_OUTPUT_TERMINAL: |
| 917 | break; |
| 918 | case UDESC_SELECTOR_UNIT: |
| 919 | selector = (const uvideo_selector_unit_descriptor_t *)desc; |
| 920 | |
| 921 | uvideo_unit_alloc_sources(vu, selector->bNrInPins, |
| 922 | selector->baSourceID); |
| 923 | break; |
| 924 | case UDESC_PROCESSING_UNIT: |
| 925 | processing = (const uvideo_processing_unit_descriptor_t *)desc; |
| 926 | pu = &vu->u.vu_processing; |
| 927 | |
| 928 | pu->pu_video_standards = PU_GET_VIDEO_STANDARDS(processing); |
| 929 | pu->pu_max_multiplier = UGETW(processing->wMaxMultiplier); |
| 930 | |
| 931 | uvideo_unit_alloc_sources(vu, 1, &processing->bSourceID); |
| 932 | uvideo_unit_alloc_controls(vu, processing->bControlSize, |
| 933 | processing->bmControls); |
| 934 | break; |
| 935 | case UDESC_EXTENSION_UNIT: |
| 936 | extension = (const uvideo_extension_unit_descriptor_t *)desc; |
| 937 | /* 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 | int error; |
| 1469 | |
| 1470 | struct uvideo_alternate *alt, *alt_maybe; |
| 1471 | usbd_status err; |
| 1472 | |
| 1473 | switch (vs->vs_xfer_type) { |
| 1474 | case UE_BULK: |
| 1475 | ret = 0; |
| 1476 | bx = &vs->vs_xfer.bulk; |
| 1477 | |
| 1478 | err = usbd_open_pipe(vs->vs_iface, bx->bx_endpt, 0, |
| 1479 | &bx->bx_pipe); |
| 1480 | if (err != USBD_NORMAL_COMPLETION) { |
| 1481 | DPRINTF(("uvideo: error opening pipe: %s (%d)\n" , |
| 1482 | usbd_errstr(err), err)); |
| 1483 | return EIO; |
| 1484 | } |
| 1485 | DPRINTF(("uvideo: pipe %p\n" , bx->bx_pipe)); |
| 1486 | |
| 1487 | error = usbd_create_xfer(bx->bx_pipe, vs->vs_max_payload_size, |
| 1488 | USBD_SHORT_XFER_OK, 0, &bx->bx_xfer); |
| 1489 | if (error) { |
| 1490 | DPRINTF(("uvideo: couldn't allocate xfer\n" )); |
| 1491 | return error; |
| 1492 | } |
| 1493 | DPRINTF(("uvideo: xfer %p\n" , bx->bx_xfer)); |
| 1494 | |
| 1495 | bx->bx_buflen = vs->vs_max_payload_size; |
| 1496 | bx->bx_buffer = usbd_get_buffer(bx->bx_xfer); |
| 1497 | |
| 1498 | mutex_enter(&bx->bx_lock); |
| 1499 | if (bx->bx_running == false) { |
| 1500 | bx->bx_running = true; |
| 1501 | ret = kthread_create(PRI_UVIDEO, 0, NULL, |
| 1502 | uvideo_stream_recv_bulk_transfer, vs, |
| 1503 | NULL, "%s" , device_xname(sc->sc_dev)); |
| 1504 | if (ret) { |
| 1505 | DPRINTF(("uvideo: couldn't create kthread:" |
| 1506 | " %d\n" , err)); |
| 1507 | bx->bx_running = false; |
| 1508 | mutex_exit(&bx->bx_lock); |
| 1509 | return err; |
| 1510 | } |
| 1511 | } else |
| 1512 | aprint_error_dev(sc->sc_dev, |
| 1513 | "transfer already in progress\n" ); |
| 1514 | mutex_exit(&bx->bx_lock); |
| 1515 | |
| 1516 | DPRINTF(("uvideo: thread created\n" )); |
| 1517 | |
| 1518 | return 0; |
| 1519 | case UE_ISOCHRONOUS: |
| 1520 | ix = &vs->vs_xfer.isoc; |
| 1521 | |
| 1522 | /* Choose an alternate interface most suitable for |
| 1523 | * this format. Choose the smallest size that can |
| 1524 | * contain max_payload_size. |
| 1525 | * |
| 1526 | * It is assumed that the list is sorted in descending |
| 1527 | * order from largest to smallest packet size. |
| 1528 | * |
| 1529 | * TODO: what should the strategy be for choosing an |
| 1530 | * alt interface? |
| 1531 | */ |
| 1532 | alt = NULL; |
| 1533 | SLIST_FOREACH(alt_maybe, &ix->ix_altlist, entries) { |
| 1534 | /* TODO: define "packet" and "payload". I think |
| 1535 | * several packets can make up one payload which would |
| 1536 | * call into question this method of selecting an |
| 1537 | * alternate interface... */ |
| 1538 | |
| 1539 | if (alt_maybe->max_packet_size > vs->vs_max_payload_size) |
| 1540 | continue; |
| 1541 | |
| 1542 | if (alt == NULL || |
| 1543 | alt_maybe->max_packet_size >= alt->max_packet_size) |
| 1544 | alt = alt_maybe; |
| 1545 | } |
| 1546 | |
| 1547 | if (alt == NULL) { |
| 1548 | DPRINTF(("uvideo_stream_start_xfer: " |
| 1549 | "no suitable alternate interface found\n" )); |
| 1550 | return EINVAL; |
| 1551 | } |
| 1552 | |
| 1553 | DPRINTFN(15,("uvideo_stream_start_xfer: " |
| 1554 | "choosing alternate interface " |
| 1555 | "%d wMaxPacketSize=%d bInterval=%d\n" , |
| 1556 | alt->altno, alt->max_packet_size, alt->interval)); |
| 1557 | |
| 1558 | err = usbd_set_interface(vs->vs_iface, alt->altno); |
| 1559 | if (err != USBD_NORMAL_COMPLETION) { |
| 1560 | DPRINTF(("uvideo_stream_start_xfer: " |
| 1561 | "error setting alt interface: %s (%d)\n" , |
| 1562 | usbd_errstr(err), err)); |
| 1563 | return EIO; |
| 1564 | } |
| 1565 | |
| 1566 | /* TODO: "packet" not same as frame */ |
| 1567 | vframe_len = vs->vs_current_format.sample_size; |
| 1568 | uframe_len = alt->max_packet_size; |
| 1569 | nframes = (vframe_len + uframe_len - 1) / uframe_len; |
| 1570 | nframes = (nframes + 7) & ~7; /*round up for ehci inefficiency*/ |
| 1571 | DPRINTF(("uvideo_stream_start_xfer: nframes=%d\n" , nframes)); |
| 1572 | |
| 1573 | ix->ix_nframes = nframes; |
| 1574 | ix->ix_uframe_len = uframe_len; |
| 1575 | for (i = 0; i < UVIDEO_NXFERS; i++) { |
| 1576 | struct uvideo_isoc *isoc = &ix->ix_i[i]; |
| 1577 | isoc->i_frlengths = |
| 1578 | kmem_alloc(sizeof(isoc->i_frlengths[0]) * nframes, |
| 1579 | KM_SLEEP); |
| 1580 | if (isoc->i_frlengths == NULL) { |
| 1581 | DPRINTF(("uvideo: failed to alloc frlengths:" |
| 1582 | "%s (%d)\n" , |
| 1583 | usbd_errstr(err), err)); |
| 1584 | return ENOMEM; |
| 1585 | } |
| 1586 | } |
| 1587 | |
| 1588 | err = usbd_open_pipe(vs->vs_iface, ix->ix_endpt, |
| 1589 | USBD_EXCLUSIVE_USE, &ix->ix_pipe); |
| 1590 | if (err != USBD_NORMAL_COMPLETION) { |
| 1591 | DPRINTF(("uvideo: error opening pipe: %s (%d)\n" , |
| 1592 | usbd_errstr(err), err)); |
| 1593 | return EIO; |
| 1594 | } |
| 1595 | |
| 1596 | for (i = 0; i < UVIDEO_NXFERS; i++) { |
| 1597 | struct uvideo_isoc *isoc = &ix->ix_i[i]; |
| 1598 | error = usbd_create_xfer(ix->ix_pipe, |
| 1599 | nframes * uframe_len, 0, ix->ix_nframes, |
| 1600 | &isoc->i_xfer); |
| 1601 | if (error) { |
| 1602 | DPRINTF(("uvideo: " |
| 1603 | "couldn't allocate xfer (%d)\n" , error)); |
| 1604 | return error; |
| 1605 | } |
| 1606 | |
| 1607 | isoc->i_buf = usbd_get_buffer(isoc->i_xfer); |
| 1608 | } |
| 1609 | |
| 1610 | uvideo_stream_recv_isoc_start(vs); |
| 1611 | |
| 1612 | return 0; |
| 1613 | default: |
| 1614 | /* should never get here */ |
| 1615 | DPRINTF(("uvideo_stream_start_xfer: unknown xfer type 0x%x\n" , |
| 1616 | vs->vs_xfer_type)); |
| 1617 | return EINVAL; |
| 1618 | } |
| 1619 | } |
| 1620 | |
| 1621 | static int |
| 1622 | uvideo_stream_stop_xfer(struct uvideo_stream *vs) |
| 1623 | { |
| 1624 | struct uvideo_bulk_xfer *bx; |
| 1625 | struct uvideo_isoc_xfer *ix; |
| 1626 | usbd_status err; |
| 1627 | int i; |
| 1628 | |
| 1629 | switch (vs->vs_xfer_type) { |
| 1630 | case UE_BULK: |
| 1631 | bx = &vs->vs_xfer.bulk; |
| 1632 | |
| 1633 | DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: " |
| 1634 | "waiting for thread to complete\n" )); |
| 1635 | mutex_enter(&bx->bx_lock); |
| 1636 | if (bx->bx_running == true) { |
| 1637 | bx->bx_running = false; |
| 1638 | cv_wait_sig(&bx->bx_cv, &bx->bx_lock); |
| 1639 | } |
| 1640 | mutex_exit(&bx->bx_lock); |
| 1641 | |
| 1642 | DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: cleaning up\n" )); |
| 1643 | |
| 1644 | if (bx->bx_pipe) { |
| 1645 | usbd_abort_pipe(bx->bx_pipe); |
| 1646 | } |
| 1647 | |
| 1648 | if (bx->bx_xfer) { |
| 1649 | usbd_destroy_xfer(bx->bx_xfer); |
| 1650 | bx->bx_xfer = NULL; |
| 1651 | } |
| 1652 | |
| 1653 | if (bx->bx_pipe) { |
| 1654 | usbd_close_pipe(bx->bx_pipe); |
| 1655 | bx->bx_pipe = NULL; |
| 1656 | } |
| 1657 | |
| 1658 | DPRINTF(("uvideo_stream_stop_xfer: UE_BULK: done\n" )); |
| 1659 | |
| 1660 | return 0; |
| 1661 | case UE_ISOCHRONOUS: |
| 1662 | ix = &vs->vs_xfer.isoc; |
| 1663 | if (ix->ix_pipe != NULL) { |
| 1664 | usbd_abort_pipe(ix->ix_pipe); |
| 1665 | } |
| 1666 | |
| 1667 | for (i = 0; i < UVIDEO_NXFERS; i++) { |
| 1668 | struct uvideo_isoc *isoc = &ix->ix_i[i]; |
| 1669 | if (isoc->i_xfer != NULL) { |
| 1670 | usbd_destroy_xfer(isoc->i_xfer); |
| 1671 | isoc->i_xfer = NULL; |
| 1672 | } |
| 1673 | |
| 1674 | if (isoc->i_frlengths != NULL) { |
| 1675 | kmem_free(isoc->i_frlengths, |
| 1676 | sizeof(isoc->i_frlengths[0]) * |
| 1677 | ix->ix_nframes); |
| 1678 | isoc->i_frlengths = NULL; |
| 1679 | } |
| 1680 | } |
| 1681 | |
| 1682 | if (ix->ix_pipe != NULL) { |
| 1683 | usbd_close_pipe(ix->ix_pipe); |
| 1684 | ix->ix_pipe = NULL; |
| 1685 | } |
| 1686 | /* Give it some time to settle */ |
| 1687 | usbd_delay_ms(vs->vs_parent->sc_udev, 1000); |
| 1688 | |
| 1689 | /* Set to zero bandwidth alternate interface zero */ |
| 1690 | err = usbd_set_interface(vs->vs_iface, 0); |
| 1691 | if (err != USBD_NORMAL_COMPLETION) { |
| 1692 | DPRINTF(("uvideo_stream_stop_transfer: " |
| 1693 | "error setting zero bandwidth interface: " |
| 1694 | "%s (%d)\n" , |
| 1695 | usbd_errstr(err), err)); |
| 1696 | return EIO; |
| 1697 | } |
| 1698 | |
| 1699 | return 0; |
| 1700 | default: |
| 1701 | /* should never get here */ |
| 1702 | DPRINTF(("uvideo_stream_stop_xfer: unknown xfer type 0x%x\n" , |
| 1703 | vs->vs_xfer_type)); |
| 1704 | return EINVAL; |
| 1705 | } |
| 1706 | } |
| 1707 | |
| 1708 | static usbd_status |
| 1709 | uvideo_stream_recv_isoc_start(struct uvideo_stream *vs) |
| 1710 | { |
| 1711 | int i; |
| 1712 | |
| 1713 | for (i = 0; i < UVIDEO_NXFERS; i++) |
| 1714 | uvideo_stream_recv_isoc_start1(&vs->vs_xfer.isoc.ix_i[i]); |
| 1715 | |
| 1716 | return USBD_NORMAL_COMPLETION; |
| 1717 | } |
| 1718 | |
| 1719 | /* Initiate a usb transfer. */ |
| 1720 | static usbd_status |
| 1721 | uvideo_stream_recv_isoc_start1(struct uvideo_isoc *isoc) |
| 1722 | { |
| 1723 | struct uvideo_isoc_xfer *ix; |
| 1724 | usbd_status err; |
| 1725 | int i; |
| 1726 | |
| 1727 | ix = isoc->i_ix; |
| 1728 | |
| 1729 | for (i = 0; i < ix->ix_nframes; ++i) |
| 1730 | isoc->i_frlengths[i] = ix->ix_uframe_len; |
| 1731 | |
| 1732 | usbd_setup_isoc_xfer(isoc->i_xfer, |
| 1733 | isoc, |
| 1734 | isoc->i_frlengths, |
| 1735 | ix->ix_nframes, |
| 1736 | USBD_SHORT_XFER_OK, |
| 1737 | uvideo_stream_recv_isoc_complete); |
| 1738 | |
| 1739 | err = usbd_transfer(isoc->i_xfer); |
| 1740 | if (err != USBD_IN_PROGRESS) { |
| 1741 | DPRINTF(("uvideo_stream_recv_start: " |
| 1742 | "usbd_transfer status=%s (%d)\n" , |
| 1743 | usbd_errstr(err), err)); |
| 1744 | } |
| 1745 | return err; |
| 1746 | } |
| 1747 | |
| 1748 | static usbd_status |
| 1749 | uvideo_stream_recv_process(struct uvideo_stream *vs, uint8_t *buf, uint32_t len) |
| 1750 | { |
| 1751 | uvideo_payload_header_t *hdr; |
| 1752 | struct video_payload payload; |
| 1753 | |
| 1754 | if (len < sizeof(uvideo_payload_header_t)) { |
| 1755 | DPRINTF(("uvideo_stream_recv_process: len %d < payload hdr\n" , |
| 1756 | len)); |
| 1757 | return USBD_SHORT_XFER; |
| 1758 | } |
| 1759 | |
| 1760 | hdr = (uvideo_payload_header_t *)buf; |
| 1761 | |
| 1762 | if (hdr->bHeaderLength > UVIDEO_PAYLOAD_HEADER_SIZE || |
| 1763 | hdr->bHeaderLength < sizeof(uvideo_payload_header_t)) |
| 1764 | return USBD_INVAL; |
| 1765 | if (hdr->bHeaderLength == len && !(hdr->bmHeaderInfo & UV_END_OF_FRAME)) |
| 1766 | return USBD_INVAL; |
| 1767 | if (hdr->bmHeaderInfo & UV_ERROR) |
| 1768 | return USBD_IOERROR; |
| 1769 | |
| 1770 | payload.data = buf + hdr->bHeaderLength; |
| 1771 | payload.size = len - hdr->bHeaderLength; |
| 1772 | payload.frameno = hdr->bmHeaderInfo & UV_FRAME_ID; |
| 1773 | payload.end_of_frame = hdr->bmHeaderInfo & UV_END_OF_FRAME; |
| 1774 | |
| 1775 | video_submit_payload(vs->vs_parent->sc_videodev, &payload); |
| 1776 | |
| 1777 | return USBD_NORMAL_COMPLETION; |
| 1778 | } |
| 1779 | |
| 1780 | /* Callback on completion of usb isoc transfer */ |
| 1781 | static void |
| 1782 | uvideo_stream_recv_isoc_complete(struct usbd_xfer *xfer, |
| 1783 | void *priv, |
| 1784 | usbd_status status) |
| 1785 | { |
| 1786 | struct uvideo_stream *vs; |
| 1787 | struct uvideo_isoc_xfer *ix; |
| 1788 | struct uvideo_isoc *isoc; |
| 1789 | int i; |
| 1790 | uint32_t count; |
| 1791 | uint8_t *buf; |
| 1792 | |
| 1793 | isoc = priv; |
| 1794 | vs = isoc->i_vs; |
| 1795 | ix = isoc->i_ix; |
| 1796 | |
| 1797 | if (status != USBD_NORMAL_COMPLETION) { |
| 1798 | DPRINTF(("uvideo_stream_recv_isoc_complete: status=%s (%d)\n" , |
| 1799 | usbd_errstr(status), status)); |
| 1800 | |
| 1801 | if (status == USBD_STALLED) |
| 1802 | usbd_clear_endpoint_stall_async(ix->ix_pipe); |
| 1803 | else |
| 1804 | return; |
| 1805 | } else { |
| 1806 | usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); |
| 1807 | |
| 1808 | if (count == 0) { |
| 1809 | /* DPRINTF(("uvideo: zero length transfer\n")); */ |
| 1810 | goto next; |
| 1811 | } |
| 1812 | |
| 1813 | |
| 1814 | for (i = 0, buf = isoc->i_buf; |
| 1815 | i < ix->ix_nframes; |
| 1816 | ++i, buf += ix->ix_uframe_len) |
| 1817 | { |
| 1818 | status = uvideo_stream_recv_process(vs, buf, |
| 1819 | isoc->i_frlengths[i]); |
| 1820 | if (status == USBD_IOERROR) |
| 1821 | break; |
| 1822 | } |
| 1823 | } |
| 1824 | |
| 1825 | next: |
| 1826 | uvideo_stream_recv_isoc_start1(isoc); |
| 1827 | } |
| 1828 | |
| 1829 | static void |
| 1830 | uvideo_stream_recv_bulk_transfer(void *addr) |
| 1831 | { |
| 1832 | struct uvideo_stream *vs = addr; |
| 1833 | struct uvideo_bulk_xfer *bx = &vs->vs_xfer.bulk; |
| 1834 | usbd_status err; |
| 1835 | uint32_t len; |
| 1836 | |
| 1837 | DPRINTF(("uvideo_stream_recv_bulk_transfer: " |
| 1838 | "vs %p sc %p bx %p buffer %p\n" , vs, vs->vs_parent, bx, |
| 1839 | bx->bx_buffer)); |
| 1840 | |
| 1841 | while (bx->bx_running) { |
| 1842 | len = bx->bx_buflen; |
| 1843 | err = usbd_bulk_transfer(bx->bx_xfer, bx->bx_pipe, |
| 1844 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, |
| 1845 | bx->bx_buffer, &len); |
| 1846 | |
| 1847 | if (err == USBD_NORMAL_COMPLETION) { |
| 1848 | uvideo_stream_recv_process(vs, bx->bx_buffer, len); |
| 1849 | } else { |
| 1850 | DPRINTF(("uvideo_stream_recv_bulk_transfer: %s\n" , |
| 1851 | usbd_errstr(err))); |
| 1852 | } |
| 1853 | } |
| 1854 | |
| 1855 | DPRINTF(("uvideo_stream_recv_bulk_transfer: notify complete\n" )); |
| 1856 | |
| 1857 | mutex_enter(&bx->bx_lock); |
| 1858 | cv_broadcast(&bx->bx_cv); |
| 1859 | mutex_exit(&bx->bx_lock); |
| 1860 | |
| 1861 | DPRINTF(("uvideo_stream_recv_bulk_transfer: return\n" )); |
| 1862 | |
| 1863 | kthread_exit(0); |
| 1864 | } |
| 1865 | |
| 1866 | /* |
| 1867 | * uvideo_open - probe and commit video format and start receiving |
| 1868 | * video data |
| 1869 | */ |
| 1870 | static int |
| 1871 | uvideo_open(void *addr, int flags) |
| 1872 | { |
| 1873 | struct uvideo_softc *sc; |
| 1874 | struct uvideo_stream *vs; |
| 1875 | struct video_format fmt; |
| 1876 | |
| 1877 | sc = addr; |
| 1878 | vs = sc->sc_stream_in; |
| 1879 | |
| 1880 | DPRINTF(("uvideo_open: sc=%p\n" , sc)); |
| 1881 | if (sc->sc_dying) |
| 1882 | return EIO; |
| 1883 | |
| 1884 | /* XXX select default format */ |
| 1885 | fmt = *vs->vs_default_format; |
| 1886 | return uvideo_set_format(addr, &fmt); |
| 1887 | } |
| 1888 | |
| 1889 | |
| 1890 | static void |
| 1891 | uvideo_close(void *addr) |
| 1892 | { |
| 1893 | struct uvideo_softc *sc; |
| 1894 | |
| 1895 | sc = addr; |
| 1896 | |
| 1897 | if (sc->sc_state != UVIDEO_STATE_CLOSED) { |
| 1898 | sc->sc_state = UVIDEO_STATE_CLOSED; |
| 1899 | } |
| 1900 | } |
| 1901 | |
| 1902 | static const char * |
| 1903 | uvideo_get_devname(void *addr) |
| 1904 | { |
| 1905 | struct uvideo_softc *sc = addr; |
| 1906 | return sc->sc_devname; |
| 1907 | } |
| 1908 | |
| 1909 | static const char * |
| 1910 | uvideo_get_businfo(void *addr) |
| 1911 | { |
| 1912 | struct uvideo_softc *sc = addr; |
| 1913 | return sc->sc_businfo; |
| 1914 | } |
| 1915 | |
| 1916 | static int |
| 1917 | uvideo_enum_format(void *addr, uint32_t index, struct video_format *format) |
| 1918 | { |
| 1919 | struct uvideo_softc *sc = addr; |
| 1920 | struct uvideo_stream *vs = sc->sc_stream_in; |
| 1921 | struct uvideo_pixel_format *pixel_format; |
| 1922 | int off; |
| 1923 | |
| 1924 | if (sc->sc_dying) |
| 1925 | return EIO; |
| 1926 | |
| 1927 | off = 0; |
| 1928 | SIMPLEQ_FOREACH(pixel_format, &vs->vs_pixel_formats, entries) { |
| 1929 | if (off++ != index) |
| 1930 | continue; |
| 1931 | format->pixel_format = pixel_format->pixel_format; |
| 1932 | return 0; |
| 1933 | } |
| 1934 | |
| 1935 | return EINVAL; |
| 1936 | } |
| 1937 | |
| 1938 | /* |
| 1939 | * uvideo_get_format |
| 1940 | */ |
| 1941 | static int |
| 1942 | uvideo_get_format(void *addr, struct video_format *format) |
| 1943 | { |
| 1944 | struct uvideo_softc *sc = addr; |
| 1945 | struct uvideo_stream *vs = sc->sc_stream_in; |
| 1946 | |
| 1947 | if (sc->sc_dying) |
| 1948 | return EIO; |
| 1949 | |
| 1950 | *format = vs->vs_current_format; |
| 1951 | |
| 1952 | return 0; |
| 1953 | } |
| 1954 | |
| 1955 | /* |
| 1956 | * uvideo_set_format - TODO: this is boken and does nothing |
| 1957 | */ |
| 1958 | static int |
| 1959 | uvideo_set_format(void *addr, struct video_format *format) |
| 1960 | { |
| 1961 | struct uvideo_softc *sc; |
| 1962 | struct uvideo_stream *vs; |
| 1963 | struct uvideo_format *uvfmt; |
| 1964 | uvideo_probe_and_commit_data_t probe, maxprobe; |
| 1965 | usbd_status err; |
| 1966 | |
| 1967 | sc = addr; |
| 1968 | |
| 1969 | DPRINTF(("uvideo_set_format: sc=%p\n" , sc)); |
| 1970 | if (sc->sc_dying) |
| 1971 | return EIO; |
| 1972 | |
| 1973 | vs = sc->sc_stream_in; |
| 1974 | |
| 1975 | uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, |
| 1976 | format->width, format->height); |
| 1977 | if (uvfmt == NULL) { |
| 1978 | DPRINTF(("uvideo: uvideo_stream_guess_format couldn't find " |
| 1979 | "%dx%d format %d\n" , format->width, format->height, |
| 1980 | format->pixel_format)); |
| 1981 | return EINVAL; |
| 1982 | } |
| 1983 | |
| 1984 | uvideo_init_probe_data(&probe); |
| 1985 | probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); |
| 1986 | probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); |
| 1987 | USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ |
| 1988 | |
| 1989 | maxprobe = probe; |
| 1990 | err = uvideo_stream_probe(vs, UR_GET_MAX, &maxprobe); |
| 1991 | if (err) { |
| 1992 | DPRINTF(("uvideo: error probe/GET_MAX: %s (%d)\n" , |
| 1993 | usbd_errstr(err), err)); |
| 1994 | } else { |
| 1995 | USETW(probe.wCompQuality, UGETW(maxprobe.wCompQuality)); |
| 1996 | } |
| 1997 | |
| 1998 | err = uvideo_stream_probe(vs, UR_SET_CUR, &probe); |
| 1999 | if (err) { |
| 2000 | DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n" , |
| 2001 | usbd_errstr(err), err)); |
| 2002 | return EIO; |
| 2003 | } |
| 2004 | |
| 2005 | uvideo_init_probe_data(&probe); |
| 2006 | err = uvideo_stream_probe(vs, UR_GET_CUR, &probe); |
| 2007 | if (err) { |
| 2008 | DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n" , |
| 2009 | usbd_errstr(err), err)); |
| 2010 | return EIO; |
| 2011 | } |
| 2012 | |
| 2013 | if (probe.bFormatIndex != UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt)) { |
| 2014 | DPRINTF(("uvideo: probe/GET_CUR returned format index %d " |
| 2015 | "(expected %d)\n" , probe.bFormatIndex, |
| 2016 | UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt))); |
| 2017 | probe.bFormatIndex = UVIDEO_FORMAT_GET_FORMAT_INDEX(uvfmt); |
| 2018 | } |
| 2019 | if (probe.bFrameIndex != UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt)) { |
| 2020 | DPRINTF(("uvideo: probe/GET_CUR returned frame index %d " |
| 2021 | "(expected %d)\n" , probe.bFrameIndex, |
| 2022 | UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt))); |
| 2023 | probe.bFrameIndex = UVIDEO_FORMAT_GET_FRAME_INDEX(uvfmt); |
| 2024 | } |
| 2025 | USETDW(probe.dwFrameInterval, vs->vs_frame_interval); /* XXX */ |
| 2026 | |
| 2027 | /* commit/SET_CUR. Fourth step is to set the alternate |
| 2028 | * interface. Currently the fourth step is in |
| 2029 | * uvideo_start_transfer. Maybe move it here? */ |
| 2030 | err = uvideo_stream_commit(vs, UR_SET_CUR, &probe); |
| 2031 | if (err) { |
| 2032 | DPRINTF(("uvideo: error commit/SET_CUR: %s (%d)\n" , |
| 2033 | usbd_errstr(err), err)); |
| 2034 | return EIO; |
| 2035 | } |
| 2036 | |
| 2037 | DPRINTFN(15, ("uvideo_set_format: committing to format: " |
| 2038 | "bmHint=0x%04x bFormatIndex=%d bFrameIndex=%d " |
| 2039 | "dwFrameInterval=%u wKeyFrameRate=%d wPFrameRate=%d " |
| 2040 | "wCompQuality=%d wCompWindowSize=%d wDelay=%d " |
| 2041 | "dwMaxVideoFrameSize=%u dwMaxPayloadTransferSize=%u" , |
| 2042 | UGETW(probe.bmHint), |
| 2043 | probe.bFormatIndex, |
| 2044 | probe.bFrameIndex, |
| 2045 | UGETDW(probe.dwFrameInterval), |
| 2046 | UGETW(probe.wKeyFrameRate), |
| 2047 | UGETW(probe.wPFrameRate), |
| 2048 | UGETW(probe.wCompQuality), |
| 2049 | UGETW(probe.wCompWindowSize), |
| 2050 | UGETW(probe.wDelay), |
| 2051 | UGETDW(probe.dwMaxVideoFrameSize), |
| 2052 | UGETDW(probe.dwMaxPayloadTransferSize))); |
| 2053 | if (vs->vs_probelen == 34) { |
| 2054 | DPRINTFN(15, (" dwClockFrequency=%u bmFramingInfo=0x%02x " |
| 2055 | "bPreferedVersion=%d bMinVersion=%d " |
| 2056 | "bMaxVersion=%d" , |
| 2057 | UGETDW(probe.dwClockFrequency), |
| 2058 | probe.bmFramingInfo, |
| 2059 | probe.bPreferedVersion, |
| 2060 | probe.bMinVersion, |
| 2061 | probe.bMaxVersion)); |
| 2062 | } |
| 2063 | DPRINTFN(15, ("\n" )); |
| 2064 | |
| 2065 | vs->vs_frame_interval = UGETDW(probe.dwFrameInterval); |
| 2066 | vs->vs_max_payload_size = UGETDW(probe.dwMaxPayloadTransferSize); |
| 2067 | |
| 2068 | *format = uvfmt->format; |
| 2069 | vs->vs_current_format = *format; |
| 2070 | DPRINTF(("uvideo_set_format: pixeltype is %d\n" , format->pixel_format)); |
| 2071 | |
| 2072 | return 0; |
| 2073 | } |
| 2074 | |
| 2075 | static int |
| 2076 | uvideo_try_format(void *addr, struct video_format *format) |
| 2077 | { |
| 2078 | struct uvideo_softc *sc = addr; |
| 2079 | struct uvideo_stream *vs = sc->sc_stream_in; |
| 2080 | struct uvideo_format *uvfmt; |
| 2081 | |
| 2082 | uvfmt = uvideo_stream_guess_format(vs, format->pixel_format, |
| 2083 | format->width, format->height); |
| 2084 | if (uvfmt == NULL) |
| 2085 | return EINVAL; |
| 2086 | |
| 2087 | *format = uvfmt->format; |
| 2088 | return 0; |
| 2089 | } |
| 2090 | |
| 2091 | static int |
| 2092 | uvideo_start_transfer(void *addr) |
| 2093 | { |
| 2094 | struct uvideo_softc *sc = addr; |
| 2095 | struct uvideo_stream *vs; |
| 2096 | int s, err; |
| 2097 | |
| 2098 | /* FIXME: this functions should be stream specific */ |
| 2099 | vs = SLIST_FIRST(&sc->sc_stream_list); |
| 2100 | s = splusb(); |
| 2101 | err = uvideo_stream_start_xfer(vs); |
| 2102 | splx(s); |
| 2103 | |
| 2104 | return err; |
| 2105 | } |
| 2106 | |
| 2107 | static int |
| 2108 | uvideo_stop_transfer(void *addr) |
| 2109 | { |
| 2110 | struct uvideo_softc *sc; |
| 2111 | int err, s; |
| 2112 | |
| 2113 | sc = addr; |
| 2114 | |
| 2115 | s = splusb(); |
| 2116 | err = uvideo_stream_stop_xfer(sc->sc_stream_in); |
| 2117 | splx(s); |
| 2118 | |
| 2119 | return err; |
| 2120 | } |
| 2121 | |
| 2122 | |
| 2123 | static int |
| 2124 | uvideo_get_control_group(void *addr, struct video_control_group *group) |
| 2125 | { |
| 2126 | struct uvideo_softc *sc; |
| 2127 | usb_device_request_t req; |
| 2128 | usbd_status err; |
| 2129 | uint8_t control_id, ent_id, data[16]; |
| 2130 | uint16_t len; |
| 2131 | int s; |
| 2132 | |
| 2133 | sc = addr; |
| 2134 | |
| 2135 | /* request setup */ |
| 2136 | switch (group->group_id) { |
| 2137 | case VIDEO_CONTROL_PANTILT_RELATIVE: |
| 2138 | if (group->length != 4) |
| 2139 | return EINVAL; |
| 2140 | |
| 2141 | return EINVAL; |
| 2142 | case VIDEO_CONTROL_SHARPNESS: |
| 2143 | if (group->length != 1) |
| 2144 | return EINVAL; |
| 2145 | |
| 2146 | control_id = UVIDEO_PU_SHARPNESS_CONTROL; |
| 2147 | ent_id = 2; /* TODO: hardcoded logitech processing unit */ |
| 2148 | len = 2; |
| 2149 | break; |
| 2150 | default: |
| 2151 | return EINVAL; |
| 2152 | } |
| 2153 | |
| 2154 | /* do request */ |
| 2155 | req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | |
| 2156 | UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | |
| 2157 | UVIDEO_REQUEST_TYPE_GET; |
| 2158 | req.bRequest = UR_GET_CUR; |
| 2159 | USETW(req.wValue, control_id << 8); |
| 2160 | USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); |
| 2161 | USETW(req.wLength, len); |
| 2162 | |
| 2163 | s = splusb(); |
| 2164 | err = usbd_do_request(sc->sc_udev, &req, data); |
| 2165 | splx(s); |
| 2166 | if (err != USBD_NORMAL_COMPLETION) { |
| 2167 | DPRINTF(("uvideo_set_control: error %s (%d)\n" , |
| 2168 | usbd_errstr(err), err)); |
| 2169 | return EIO; /* TODO: more detail here? */ |
| 2170 | } |
| 2171 | |
| 2172 | /* extract request data */ |
| 2173 | switch (group->group_id) { |
| 2174 | case VIDEO_CONTROL_SHARPNESS: |
| 2175 | group->control[0].value = UGETW(data); |
| 2176 | break; |
| 2177 | default: |
| 2178 | return EINVAL; |
| 2179 | } |
| 2180 | |
| 2181 | return 0; |
| 2182 | } |
| 2183 | |
| 2184 | |
| 2185 | static int |
| 2186 | uvideo_set_control_group(void *addr, const struct video_control_group *group) |
| 2187 | { |
| 2188 | struct uvideo_softc *sc; |
| 2189 | usb_device_request_t req; |
| 2190 | usbd_status err; |
| 2191 | uint8_t control_id, ent_id, data[16]; /* long enough for all controls */ |
| 2192 | uint16_t len; |
| 2193 | int s; |
| 2194 | |
| 2195 | sc = addr; |
| 2196 | |
| 2197 | switch (group->group_id) { |
| 2198 | case VIDEO_CONTROL_PANTILT_RELATIVE: |
| 2199 | if (group->length != 4) |
| 2200 | return EINVAL; |
| 2201 | |
| 2202 | if (group->control[0].value != 0 || |
| 2203 | group->control[0].value != 1 || |
| 2204 | group->control[0].value != 0xff) |
| 2205 | return ERANGE; |
| 2206 | |
| 2207 | if (group->control[2].value != 0 || |
| 2208 | group->control[2].value != 1 || |
| 2209 | group->control[2].value != 0xff) |
| 2210 | return ERANGE; |
| 2211 | |
| 2212 | control_id = UVIDEO_CT_PANTILT_RELATIVE_CONTROL; |
| 2213 | ent_id = 1; /* TODO: hardcoded logitech camera terminal */ |
| 2214 | len = 4; |
| 2215 | data[0] = group->control[0].value; |
| 2216 | data[1] = group->control[1].value; |
| 2217 | data[2] = group->control[2].value; |
| 2218 | data[3] = group->control[3].value; |
| 2219 | break; |
| 2220 | case VIDEO_CONTROL_BRIGHTNESS: |
| 2221 | if (group->length != 1) |
| 2222 | return EINVAL; |
| 2223 | control_id = UVIDEO_PU_BRIGHTNESS_CONTROL; |
| 2224 | ent_id = 2; |
| 2225 | len = 2; |
| 2226 | USETW(data, group->control[0].value); |
| 2227 | break; |
| 2228 | case VIDEO_CONTROL_GAIN: |
| 2229 | if (group->length != 1) |
| 2230 | return EINVAL; |
| 2231 | control_id = UVIDEO_PU_GAIN_CONTROL; |
| 2232 | ent_id = 2; |
| 2233 | len = 2; |
| 2234 | USETW(data, group->control[0].value); |
| 2235 | break; |
| 2236 | case VIDEO_CONTROL_SHARPNESS: |
| 2237 | if (group->length != 1) |
| 2238 | return EINVAL; |
| 2239 | control_id = UVIDEO_PU_SHARPNESS_CONTROL; |
| 2240 | ent_id = 2; /* TODO: hardcoded logitech processing unit */ |
| 2241 | len = 2; |
| 2242 | USETW(data, group->control[0].value); |
| 2243 | break; |
| 2244 | default: |
| 2245 | return EINVAL; |
| 2246 | } |
| 2247 | |
| 2248 | req.bmRequestType = UVIDEO_REQUEST_TYPE_INTERFACE | |
| 2249 | UVIDEO_REQUEST_TYPE_CLASS_SPECIFIC | |
| 2250 | UVIDEO_REQUEST_TYPE_SET; |
| 2251 | req.bRequest = UR_SET_CUR; |
| 2252 | USETW(req.wValue, control_id << 8); |
| 2253 | USETW(req.wIndex, (ent_id << 8) | sc->sc_ifaceno); |
| 2254 | USETW(req.wLength, len); |
| 2255 | |
| 2256 | s = splusb(); |
| 2257 | err = usbd_do_request(sc->sc_udev, &req, data); |
| 2258 | splx(s); |
| 2259 | if (err != USBD_NORMAL_COMPLETION) { |
| 2260 | DPRINTF(("uvideo_set_control: error %s (%d)\n" , |
| 2261 | usbd_errstr(err), err)); |
| 2262 | return EIO; /* TODO: more detail here? */ |
| 2263 | } |
| 2264 | |
| 2265 | return 0; |
| 2266 | } |
| 2267 | |
| 2268 | static usbd_status |
| 2269 | uvideo_stream_probe_and_commit(struct uvideo_stream *vs, |
| 2270 | uint8_t action, uint8_t control, |
| 2271 | void *data) |
| 2272 | { |
| 2273 | usb_device_request_t req; |
| 2274 | |
| 2275 | switch (action) { |
| 2276 | case UR_SET_CUR: |
| 2277 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 2278 | USETW(req.wLength, vs->vs_probelen); |
| 2279 | break; |
| 2280 | case UR_GET_CUR: |
| 2281 | case UR_GET_MIN: |
| 2282 | case UR_GET_MAX: |
| 2283 | case UR_GET_DEF: |
| 2284 | req.bmRequestType = UT_READ_CLASS_INTERFACE; |
| 2285 | USETW(req.wLength, vs->vs_probelen); |
| 2286 | break; |
| 2287 | case UR_GET_INFO: |
| 2288 | req.bmRequestType = UT_READ_CLASS_INTERFACE; |
| 2289 | USETW(req.wLength, sizeof(uByte)); |
| 2290 | break; |
| 2291 | case UR_GET_LEN: |
| 2292 | req.bmRequestType = UT_READ_CLASS_INTERFACE; |
| 2293 | USETW(req.wLength, sizeof(uWord)); /* is this right? */ |
| 2294 | break; |
| 2295 | default: |
| 2296 | DPRINTF(("uvideo_probe_and_commit: " |
| 2297 | "unknown request action %d\n" , action)); |
| 2298 | return USBD_NOT_STARTED; |
| 2299 | } |
| 2300 | |
| 2301 | req.bRequest = action; |
| 2302 | USETW2(req.wValue, control, 0); |
| 2303 | USETW2(req.wIndex, 0, vs->vs_ifaceno); |
| 2304 | |
| 2305 | return (usbd_do_request_flags(vs->vs_parent->sc_udev, &req, data, |
| 2306 | 0, 0, |
| 2307 | USBD_DEFAULT_TIMEOUT)); |
| 2308 | } |
| 2309 | |
| 2310 | static void |
| 2311 | uvideo_init_probe_data(uvideo_probe_and_commit_data_t *probe) |
| 2312 | { |
| 2313 | /* all zeroes tells camera to choose what it wants */ |
| 2314 | memset(probe, 0, sizeof(*probe)); |
| 2315 | } |
| 2316 | |
| 2317 | |
| 2318 | #ifdef _MODULE |
| 2319 | |
| 2320 | MODULE(MODULE_CLASS_DRIVER, uvideo, NULL); |
| 2321 | static const struct cfiattrdata videobuscf_iattrdata = { |
| 2322 | "videobus" , 0, { |
| 2323 | { NULL, NULL, 0 }, |
| 2324 | } |
| 2325 | }; |
| 2326 | static const struct cfiattrdata * const uvideo_attrs[] = { |
| 2327 | &videobuscf_iattrdata, NULL |
| 2328 | }; |
| 2329 | CFDRIVER_DECL(uvideo, DV_DULL, uvideo_attrs); |
| 2330 | extern struct cfattach uvideo_ca; |
| 2331 | extern struct cfattach uvideo_ca; |
| 2332 | static int uvideoloc[6] = { -1, -1, -1, -1, -1, -1 }; |
| 2333 | static struct cfparent uhubparent = { |
| 2334 | "usbifif" , NULL, DVUNIT_ANY |
| 2335 | }; |
| 2336 | static struct cfdata uvideo_cfdata[] = { |
| 2337 | { |
| 2338 | .cf_name = "uvideo" , |
| 2339 | .cf_atname = "uvideo" , |
| 2340 | .cf_unit = 0, |
| 2341 | .cf_fstate = FSTATE_STAR, |
| 2342 | .cf_loc = uvideoloc, |
| 2343 | .cf_flags = 0, |
| 2344 | .cf_pspec = &uhubparent, |
| 2345 | }, |
| 2346 | { NULL, NULL, 0, 0, NULL, 0, NULL }, |
| 2347 | }; |
| 2348 | |
| 2349 | static int |
| 2350 | uvideo_modcmd(modcmd_t cmd, void *arg) |
| 2351 | { |
| 2352 | int err; |
| 2353 | |
| 2354 | |
| 2355 | switch (cmd) { |
| 2356 | case MODULE_CMD_INIT: |
| 2357 | DPRINTF(("uvideo: attempting to load\n" )); |
| 2358 | |
| 2359 | err = config_cfdriver_attach(&uvideo_cd); |
| 2360 | if (err) |
| 2361 | return err; |
| 2362 | err = config_cfattach_attach("uvideo" , &uvideo_ca); |
| 2363 | if (err) { |
| 2364 | config_cfdriver_detach(&uvideo_cd); |
| 2365 | return err; |
| 2366 | } |
| 2367 | err = config_cfdata_attach(uvideo_cfdata, 1); |
| 2368 | if (err) { |
| 2369 | config_cfattach_detach("uvideo" , &uvideo_ca); |
| 2370 | config_cfdriver_detach(&uvideo_cd); |
| 2371 | return err; |
| 2372 | } |
| 2373 | DPRINTF(("uvideo: loaded module\n" )); |
| 2374 | return 0; |
| 2375 | case MODULE_CMD_FINI: |
| 2376 | DPRINTF(("uvideo: attempting to unload module\n" )); |
| 2377 | err = config_cfdata_detach(uvideo_cfdata); |
| 2378 | if (err) |
| 2379 | return err; |
| 2380 | config_cfattach_detach("uvideo" , &uvideo_ca); |
| 2381 | config_cfdriver_detach(&uvideo_cd); |
| 2382 | DPRINTF(("uvideo: module unload\n" )); |
| 2383 | return 0; |
| 2384 | default: |
| 2385 | return ENOTTY; |
| 2386 | } |
| 2387 | } |
| 2388 | |
| 2389 | #endif /* _MODULE */ |
| 2390 | |
| 2391 | |
| 2392 | #ifdef UVIDEO_DEBUG |
| 2393 | /* Some functions to print out descriptors. Mostly useless other than |
| 2394 | * debugging/exploration purposes. */ |
| 2395 | |
| 2396 | |
| 2397 | static void |
| 2398 | print_bitmap(const uByte *start, uByte nbytes) |
| 2399 | { |
| 2400 | int byte, bit; |
| 2401 | |
| 2402 | /* most significant first */ |
| 2403 | for (byte = nbytes-1; byte >= 0; --byte) { |
| 2404 | if (byte < nbytes-1) printf("-" ); |
| 2405 | for (bit = 7; bit >= 0; --bit) |
| 2406 | printf("%01d" , (start[byte] >> bit) &1); |
| 2407 | } |
| 2408 | } |
| 2409 | |
| 2410 | static void |
| 2411 | print_descriptor(const usb_descriptor_t *desc) |
| 2412 | { |
| 2413 | static int current_class = -1; |
| 2414 | static int current_subclass = -1; |
| 2415 | |
| 2416 | if (desc->bDescriptorType == UDESC_INTERFACE) { |
| 2417 | const usb_interface_descriptor_t *id; |
| 2418 | id = (const usb_interface_descriptor_t *)desc; |
| 2419 | current_class = id->bInterfaceClass; |
| 2420 | current_subclass = id->bInterfaceSubClass; |
| 2421 | print_interface_descriptor(id); |
| 2422 | printf("\n" ); |
| 2423 | return; |
| 2424 | } |
| 2425 | |
| 2426 | printf(" " ); /* indent */ |
| 2427 | |
| 2428 | if (current_class == UICLASS_VIDEO) { |
| 2429 | switch (current_subclass) { |
| 2430 | case UISUBCLASS_VIDEOCONTROL: |
| 2431 | print_vc_descriptor(desc); |
| 2432 | break; |
| 2433 | case UISUBCLASS_VIDEOSTREAMING: |
| 2434 | print_vs_descriptor(desc); |
| 2435 | break; |
| 2436 | case UISUBCLASS_VIDEOCOLLECTION: |
| 2437 | printf("uvc collection: len=%d type=0x%02x" , |
| 2438 | desc->bLength, desc->bDescriptorType); |
| 2439 | break; |
| 2440 | } |
| 2441 | } else { |
| 2442 | printf("non uvc descriptor len=%d type=0x%02x" , |
| 2443 | desc->bLength, desc->bDescriptorType); |
| 2444 | } |
| 2445 | |
| 2446 | printf("\n" ); |
| 2447 | } |
| 2448 | |
| 2449 | static void |
| 2450 | print_vc_descriptor(const usb_descriptor_t *desc) |
| 2451 | { |
| 2452 | const uvideo_descriptor_t *vcdesc; |
| 2453 | |
| 2454 | printf("VC " ); |
| 2455 | |
| 2456 | switch (desc->bDescriptorType) { |
| 2457 | case UDESC_ENDPOINT: |
| 2458 | print_endpoint_descriptor( |
| 2459 | (const usb_endpoint_descriptor_t *)desc); |
| 2460 | break; |
| 2461 | case UDESC_CS_INTERFACE: |
| 2462 | vcdesc = (const uvideo_descriptor_t *)desc; |
| 2463 | switch (vcdesc->bDescriptorSubtype) { |
| 2464 | case UDESC_VC_HEADER: |
| 2465 | print_vc_header_descriptor( |
| 2466 | (const uvideo_vc_header_descriptor_t *) |
| 2467 | vcdesc); |
| 2468 | break; |
| 2469 | case UDESC_INPUT_TERMINAL: |
| 2470 | switch (UGETW( |
| 2471 | ((const uvideo_input_terminal_descriptor_t *) |
| 2472 | vcdesc)->wTerminalType)) { |
| 2473 | case UVIDEO_ITT_CAMERA: |
| 2474 | print_camera_terminal_descriptor( |
| 2475 | (const uvideo_camera_terminal_descriptor_t *)vcdesc); |
| 2476 | break; |
| 2477 | default: |
| 2478 | print_input_terminal_descriptor( |
| 2479 | (const uvideo_input_terminal_descriptor_t *)vcdesc); |
| 2480 | break; |
| 2481 | } |
| 2482 | break; |
| 2483 | case UDESC_OUTPUT_TERMINAL: |
| 2484 | print_output_terminal_descriptor( |
| 2485 | (const uvideo_output_terminal_descriptor_t *) |
| 2486 | vcdesc); |
| 2487 | break; |
| 2488 | case UDESC_SELECTOR_UNIT: |
| 2489 | print_selector_unit_descriptor( |
| 2490 | (const uvideo_selector_unit_descriptor_t *) |
| 2491 | vcdesc); |
| 2492 | break; |
| 2493 | case UDESC_PROCESSING_UNIT: |
| 2494 | print_processing_unit_descriptor( |
| 2495 | (const uvideo_processing_unit_descriptor_t *) |
| 2496 | vcdesc); |
| 2497 | break; |
| 2498 | case UDESC_EXTENSION_UNIT: |
| 2499 | print_extension_unit_descriptor( |
| 2500 | (const uvideo_extension_unit_descriptor_t *) |
| 2501 | vcdesc); |
| 2502 | break; |
| 2503 | default: |
| 2504 | printf("class specific interface " |
| 2505 | "len=%d type=0x%02x subtype=0x%02x" , |
| 2506 | vcdesc->bLength, |
| 2507 | vcdesc->bDescriptorType, |
| 2508 | vcdesc->bDescriptorSubtype); |
| 2509 | break; |
| 2510 | } |
| 2511 | break; |
| 2512 | case UDESC_CS_ENDPOINT: |
| 2513 | vcdesc = (const uvideo_descriptor_t *)desc; |
| 2514 | switch (vcdesc->bDescriptorSubtype) { |
| 2515 | case UDESC_VC_INTERRUPT_ENDPOINT: |
| 2516 | print_interrupt_endpoint_descriptor( |
| 2517 | (const uvideo_vc_interrupt_endpoint_descriptor_t *) |
| 2518 | vcdesc); |
| 2519 | break; |
| 2520 | default: |
| 2521 | printf("class specific endpoint " |
| 2522 | "len=%d type=0x%02x subtype=0x%02x" , |
| 2523 | vcdesc->bLength, |
| 2524 | vcdesc->bDescriptorType, |
| 2525 | vcdesc->bDescriptorSubtype); |
| 2526 | break; |
| 2527 | } |
| 2528 | break; |
| 2529 | default: |
| 2530 | printf("unknown: len=%d type=0x%02x" , |
| 2531 | desc->bLength, desc->bDescriptorType); |
| 2532 | break; |
| 2533 | } |
| 2534 | } |
| 2535 | |
| 2536 | static void |
| 2537 | print_vs_descriptor(const usb_descriptor_t *desc) |
| 2538 | { |
| 2539 | const uvideo_descriptor_t * vsdesc; |
| 2540 | printf("VS " ); |
| 2541 | |
| 2542 | switch (desc->bDescriptorType) { |
| 2543 | case UDESC_ENDPOINT: |
| 2544 | print_endpoint_descriptor( |
| 2545 | (const usb_endpoint_descriptor_t *)desc); |
| 2546 | break; |
| 2547 | case UDESC_CS_INTERFACE: |
| 2548 | vsdesc = (const uvideo_descriptor_t *)desc; |
| 2549 | switch (vsdesc->bDescriptorSubtype) { |
| 2550 | case UDESC_VS_INPUT_HEADER: |
| 2551 | print_vs_input_header_descriptor( |
| 2552 | (const uvideo_vs_input_header_descriptor_t *) |
| 2553 | vsdesc); |
| 2554 | break; |
| 2555 | case UDESC_VS_OUTPUT_HEADER: |
| 2556 | print_vs_output_header_descriptor( |
| 2557 | (const uvideo_vs_output_header_descriptor_t *) |
| 2558 | vsdesc); |
| 2559 | break; |
| 2560 | case UDESC_VS_FORMAT_UNCOMPRESSED: |
| 2561 | print_vs_format_uncompressed_descriptor( |
| 2562 | (const uvideo_vs_format_uncompressed_descriptor_t *) |
| 2563 | vsdesc); |
| 2564 | break; |
| 2565 | case UDESC_VS_FRAME_UNCOMPRESSED: |
| 2566 | print_vs_frame_uncompressed_descriptor( |
| 2567 | (const uvideo_vs_frame_uncompressed_descriptor_t *) |
| 2568 | vsdesc); |
| 2569 | break; |
| 2570 | case UDESC_VS_FORMAT_MJPEG: |
| 2571 | print_vs_format_mjpeg_descriptor( |
| 2572 | (const uvideo_vs_format_mjpeg_descriptor_t *) |
| 2573 | vsdesc); |
| 2574 | break; |
| 2575 | case UDESC_VS_FRAME_MJPEG: |
| 2576 | print_vs_frame_mjpeg_descriptor( |
| 2577 | (const uvideo_vs_frame_mjpeg_descriptor_t *) |
| 2578 | vsdesc); |
| 2579 | break; |
| 2580 | case UDESC_VS_FORMAT_DV: |
| 2581 | print_vs_format_dv_descriptor( |
| 2582 | (const uvideo_vs_format_dv_descriptor_t *) |
| 2583 | vsdesc); |
| 2584 | break; |
| 2585 | default: |
| 2586 | printf("unknown cs interface: len=%d type=0x%02x " |
| 2587 | "subtype=0x%02x" , |
| 2588 | vsdesc->bLength, vsdesc->bDescriptorType, |
| 2589 | vsdesc->bDescriptorSubtype); |
| 2590 | } |
| 2591 | break; |
| 2592 | default: |
| 2593 | printf("unknown: len=%d type=0x%02x" , |
| 2594 | desc->bLength, desc->bDescriptorType); |
| 2595 | break; |
| 2596 | } |
| 2597 | } |
| 2598 | |
| 2599 | static void |
| 2600 | print_interface_descriptor(const usb_interface_descriptor_t *id) |
| 2601 | { |
| 2602 | printf("Interface: Len=%d Type=0x%02x " |
| 2603 | "bInterfaceNumber=0x%02x " |
| 2604 | "bAlternateSetting=0x%02x bNumEndpoints=0x%02x " |
| 2605 | "bInterfaceClass=0x%02x bInterfaceSubClass=0x%02x " |
| 2606 | "bInterfaceProtocol=0x%02x iInterface=0x%02x" , |
| 2607 | id->bLength, |
| 2608 | id->bDescriptorType, |
| 2609 | id->bInterfaceNumber, |
| 2610 | id->bAlternateSetting, |
| 2611 | id->bNumEndpoints, |
| 2612 | id->bInterfaceClass, |
| 2613 | id->bInterfaceSubClass, |
| 2614 | id->bInterfaceProtocol, |
| 2615 | id->iInterface); |
| 2616 | } |
| 2617 | |
| 2618 | static void |
| 2619 | print_endpoint_descriptor(const usb_endpoint_descriptor_t *desc) |
| 2620 | { |
| 2621 | printf("Endpoint: Len=%d Type=0x%02x " |
| 2622 | "bEndpointAddress=0x%02x " , |
| 2623 | desc->bLength, |
| 2624 | desc->bDescriptorType, |
| 2625 | desc->bEndpointAddress); |
| 2626 | printf("bmAttributes=" ); |
| 2627 | print_bitmap(&desc->bmAttributes, 1); |
| 2628 | printf(" wMaxPacketSize=%d bInterval=%d" , |
| 2629 | UGETW(desc->wMaxPacketSize), |
| 2630 | desc->bInterval); |
| 2631 | } |
| 2632 | |
| 2633 | static void |
| 2634 | print_vc_header_descriptor( |
| 2635 | const uvideo_vc_header_descriptor_t *desc) |
| 2636 | { |
| 2637 | printf("Interface Header: " |
| 2638 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2639 | "bcdUVC=%d wTotalLength=%d " |
| 2640 | "dwClockFrequency=%u bInCollection=%d" , |
| 2641 | desc->bLength, |
| 2642 | desc->bDescriptorType, |
| 2643 | desc->bDescriptorSubtype, |
| 2644 | UGETW(desc->bcdUVC), |
| 2645 | UGETW(desc->wTotalLength), |
| 2646 | UGETDW(desc->dwClockFrequency), |
| 2647 | desc->bInCollection); |
| 2648 | } |
| 2649 | |
| 2650 | static void |
| 2651 | print_input_terminal_descriptor( |
| 2652 | const uvideo_input_terminal_descriptor_t *desc) |
| 2653 | { |
| 2654 | printf("Input Terminal: " |
| 2655 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2656 | "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " |
| 2657 | "iTerminal=%d" , |
| 2658 | desc->bLength, |
| 2659 | desc->bDescriptorType, |
| 2660 | desc->bDescriptorSubtype, |
| 2661 | desc->bTerminalID, |
| 2662 | UGETW(desc->wTerminalType), |
| 2663 | desc->bAssocTerminal, |
| 2664 | desc->iTerminal); |
| 2665 | } |
| 2666 | |
| 2667 | static void |
| 2668 | print_output_terminal_descriptor( |
| 2669 | const uvideo_output_terminal_descriptor_t *desc) |
| 2670 | { |
| 2671 | printf("Output Terminal: " |
| 2672 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2673 | "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " |
| 2674 | "bSourceID=%d iTerminal=%d" , |
| 2675 | desc->bLength, |
| 2676 | desc->bDescriptorType, |
| 2677 | desc->bDescriptorSubtype, |
| 2678 | desc->bTerminalID, |
| 2679 | UGETW(desc->wTerminalType), |
| 2680 | desc->bAssocTerminal, |
| 2681 | desc->bSourceID, |
| 2682 | desc->iTerminal); |
| 2683 | } |
| 2684 | |
| 2685 | static void |
| 2686 | print_camera_terminal_descriptor( |
| 2687 | const uvideo_camera_terminal_descriptor_t *desc) |
| 2688 | { |
| 2689 | printf("Camera Terminal: " |
| 2690 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2691 | "bTerminalID=%d wTerminalType=%x bAssocTerminal=%d " |
| 2692 | "iTerminal=%d " |
| 2693 | "wObjectiveFocalLengthMin/Max=%d/%d " |
| 2694 | "wOcularFocalLength=%d " |
| 2695 | "bControlSize=%d " , |
| 2696 | desc->bLength, |
| 2697 | desc->bDescriptorType, |
| 2698 | desc->bDescriptorSubtype, |
| 2699 | desc->bTerminalID, |
| 2700 | UGETW(desc->wTerminalType), |
| 2701 | desc->bAssocTerminal, |
| 2702 | desc->iTerminal, |
| 2703 | UGETW(desc->wObjectiveFocalLengthMin), |
| 2704 | UGETW(desc->wObjectiveFocalLengthMax), |
| 2705 | UGETW(desc->wOcularFocalLength), |
| 2706 | desc->bControlSize); |
| 2707 | printf("bmControls=" ); |
| 2708 | print_bitmap(desc->bmControls, desc->bControlSize); |
| 2709 | } |
| 2710 | |
| 2711 | static void |
| 2712 | print_selector_unit_descriptor( |
| 2713 | const uvideo_selector_unit_descriptor_t *desc) |
| 2714 | { |
| 2715 | int i; |
| 2716 | const uByte *b; |
| 2717 | printf("Selector Unit: " |
| 2718 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2719 | "bUnitID=%d bNrInPins=%d " , |
| 2720 | desc->bLength, |
| 2721 | desc->bDescriptorType, |
| 2722 | desc->bDescriptorSubtype, |
| 2723 | desc->bUnitID, |
| 2724 | desc->bNrInPins); |
| 2725 | printf("baSourceIDs=" ); |
| 2726 | b = &desc->baSourceID[0]; |
| 2727 | for (i = 0; i < desc->bNrInPins; ++i) |
| 2728 | printf("%d " , *b++); |
| 2729 | printf("iSelector=%d" , *b); |
| 2730 | } |
| 2731 | |
| 2732 | static void |
| 2733 | print_processing_unit_descriptor( |
| 2734 | const uvideo_processing_unit_descriptor_t *desc) |
| 2735 | { |
| 2736 | const uByte *b; |
| 2737 | |
| 2738 | printf("Processing Unit: " |
| 2739 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2740 | "bUnitID=%d bSourceID=%d wMaxMultiplier=%d bControlSize=%d " , |
| 2741 | desc->bLength, |
| 2742 | desc->bDescriptorType, |
| 2743 | desc->bDescriptorSubtype, |
| 2744 | desc->bUnitID, |
| 2745 | desc->bSourceID, |
| 2746 | UGETW(desc->wMaxMultiplier), |
| 2747 | desc->bControlSize); |
| 2748 | printf("bmControls=" ); |
| 2749 | print_bitmap(desc->bmControls, desc->bControlSize); |
| 2750 | b = &desc->bControlSize + desc->bControlSize + 1; |
| 2751 | printf(" iProcessing=%d bmVideoStandards=" , *b); |
| 2752 | b += 1; |
| 2753 | print_bitmap(b, 1); |
| 2754 | } |
| 2755 | |
| 2756 | static void |
| 2757 | print_extension_unit_descriptor( |
| 2758 | const uvideo_extension_unit_descriptor_t *desc) |
| 2759 | { |
| 2760 | const uByte * byte; |
| 2761 | uByte controlbytes; |
| 2762 | int i; |
| 2763 | |
| 2764 | printf("Extension Unit: " |
| 2765 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2766 | "bUnitID=%d " , |
| 2767 | desc->bLength, |
| 2768 | desc->bDescriptorType, |
| 2769 | desc->bDescriptorSubtype, |
| 2770 | desc->bUnitID); |
| 2771 | |
| 2772 | printf("guidExtensionCode=" ); |
| 2773 | usb_guid_print(&desc->guidExtensionCode); |
| 2774 | printf(" " ); |
| 2775 | |
| 2776 | printf("bNumControls=%d bNrInPins=%d " , |
| 2777 | desc->bNumControls, |
| 2778 | desc->bNrInPins); |
| 2779 | |
| 2780 | printf("baSourceIDs=" ); |
| 2781 | byte = &desc->baSourceID[0]; |
| 2782 | for (i = 0; i < desc->bNrInPins; ++i) |
| 2783 | printf("%d " , *byte++); |
| 2784 | |
| 2785 | controlbytes = *byte++; |
| 2786 | printf("bControlSize=%d " , controlbytes); |
| 2787 | printf("bmControls=" ); |
| 2788 | print_bitmap(byte, controlbytes); |
| 2789 | |
| 2790 | byte += controlbytes; |
| 2791 | printf(" iExtension=%d" , *byte); |
| 2792 | } |
| 2793 | |
| 2794 | static void |
| 2795 | print_interrupt_endpoint_descriptor( |
| 2796 | const uvideo_vc_interrupt_endpoint_descriptor_t *desc) |
| 2797 | { |
| 2798 | printf("Interrupt Endpoint: " |
| 2799 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2800 | "wMaxTransferSize=%d " , |
| 2801 | desc->bLength, |
| 2802 | desc->bDescriptorType, |
| 2803 | desc->bDescriptorSubtype, |
| 2804 | UGETW(desc->wMaxTransferSize)); |
| 2805 | } |
| 2806 | |
| 2807 | |
| 2808 | static void |
| 2809 | print_vs_output_header_descriptor( |
| 2810 | const uvideo_vs_output_header_descriptor_t *desc) |
| 2811 | { |
| 2812 | printf("Interface Output Header: " |
| 2813 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2814 | "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " |
| 2815 | "bTerminalLink=%d bControlSize=%d" , |
| 2816 | desc->bLength, |
| 2817 | desc->bDescriptorType, |
| 2818 | desc->bDescriptorSubtype, |
| 2819 | desc->bNumFormats, |
| 2820 | UGETW(desc->wTotalLength), |
| 2821 | desc->bEndpointAddress, |
| 2822 | desc->bTerminalLink, |
| 2823 | desc->bControlSize); |
| 2824 | } |
| 2825 | |
| 2826 | static void |
| 2827 | print_vs_input_header_descriptor( |
| 2828 | const uvideo_vs_input_header_descriptor_t *desc) |
| 2829 | { |
| 2830 | printf("Interface Input Header: " |
| 2831 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2832 | "bNumFormats=%d wTotalLength=%d bEndpointAddress=%d " |
| 2833 | "bmInfo=%x bTerminalLink=%d bStillCaptureMethod=%d " |
| 2834 | "bTriggerSupport=%d bTriggerUsage=%d bControlSize=%d " , |
| 2835 | desc->bLength, |
| 2836 | desc->bDescriptorType, |
| 2837 | desc->bDescriptorSubtype, |
| 2838 | desc->bNumFormats, |
| 2839 | UGETW(desc->wTotalLength), |
| 2840 | desc->bEndpointAddress, |
| 2841 | desc->bmInfo, |
| 2842 | desc->bTerminalLink, |
| 2843 | desc->bStillCaptureMethod, |
| 2844 | desc->bTriggerSupport, |
| 2845 | desc->bTriggerUsage, |
| 2846 | desc->bControlSize); |
| 2847 | print_bitmap(desc->bmaControls, desc->bControlSize); |
| 2848 | } |
| 2849 | |
| 2850 | static void |
| 2851 | print_vs_format_uncompressed_descriptor( |
| 2852 | const uvideo_vs_format_uncompressed_descriptor_t *desc) |
| 2853 | { |
| 2854 | printf("Format Uncompressed: " |
| 2855 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2856 | "bFormatIndex=%d bNumFrameDescriptors=%d " , |
| 2857 | desc->bLength, |
| 2858 | desc->bDescriptorType, |
| 2859 | desc->bDescriptorSubtype, |
| 2860 | desc->bFormatIndex, |
| 2861 | desc->bNumFrameDescriptors); |
| 2862 | usb_guid_print(&desc->guidFormat); |
| 2863 | printf(" bBitsPerPixel=%d bDefaultFrameIndex=%d " |
| 2864 | "bAspectRatioX=%d bAspectRatioY=%d " |
| 2865 | "bmInterlaceFlags=0x%02x bCopyProtect=%d" , |
| 2866 | desc->bBitsPerPixel, |
| 2867 | desc->bDefaultFrameIndex, |
| 2868 | desc->bAspectRatioX, |
| 2869 | desc->bAspectRatioY, |
| 2870 | desc->bmInterlaceFlags, |
| 2871 | desc->bCopyProtect); |
| 2872 | } |
| 2873 | |
| 2874 | static void |
| 2875 | print_vs_frame_uncompressed_descriptor( |
| 2876 | const uvideo_vs_frame_uncompressed_descriptor_t *desc) |
| 2877 | { |
| 2878 | printf("Frame Uncompressed: " |
| 2879 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2880 | "bFrameIndex=%d bmCapabilities=0x%02x " |
| 2881 | "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " |
| 2882 | "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " |
| 2883 | "bFrameIntervalType=%d" , |
| 2884 | desc->bLength, |
| 2885 | desc->bDescriptorType, |
| 2886 | desc->bDescriptorSubtype, |
| 2887 | desc->bFrameIndex, |
| 2888 | desc->bmCapabilities, |
| 2889 | UGETW(desc->wWidth), |
| 2890 | UGETW(desc->wHeight), |
| 2891 | UGETDW(desc->dwMinBitRate), |
| 2892 | UGETDW(desc->dwMaxBitRate), |
| 2893 | UGETDW(desc->dwMaxVideoFrameBufferSize), |
| 2894 | UGETDW(desc->dwDefaultFrameInterval), |
| 2895 | desc->bFrameIntervalType); |
| 2896 | } |
| 2897 | |
| 2898 | static void |
| 2899 | print_vs_format_mjpeg_descriptor( |
| 2900 | const uvideo_vs_format_mjpeg_descriptor_t *desc) |
| 2901 | { |
| 2902 | printf("MJPEG format: " |
| 2903 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2904 | "bFormatIndex=%d bNumFrameDescriptors=%d bmFlags=0x%02x " |
| 2905 | "bDefaultFrameIndex=%d bAspectRatioX=%d bAspectRatioY=%d " |
| 2906 | "bmInterlaceFlags=0x%02x bCopyProtect=%d" , |
| 2907 | desc->bLength, |
| 2908 | desc->bDescriptorType, |
| 2909 | desc->bDescriptorSubtype, |
| 2910 | desc->bFormatIndex, |
| 2911 | desc->bNumFrameDescriptors, |
| 2912 | desc->bmFlags, |
| 2913 | desc->bDefaultFrameIndex, |
| 2914 | desc->bAspectRatioX, |
| 2915 | desc->bAspectRatioY, |
| 2916 | desc->bmInterlaceFlags, |
| 2917 | desc->bCopyProtect); |
| 2918 | } |
| 2919 | |
| 2920 | static void |
| 2921 | print_vs_frame_mjpeg_descriptor( |
| 2922 | const uvideo_vs_frame_mjpeg_descriptor_t *desc) |
| 2923 | { |
| 2924 | printf("MJPEG frame: " |
| 2925 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2926 | "bFrameIndex=%d bmCapabilities=0x%02x " |
| 2927 | "wWidth=%d wHeight=%d dwMinBitRate=%u dwMaxBitRate=%u " |
| 2928 | "dwMaxVideoFrameBufferSize=%u dwDefaultFrameInterval=%u " |
| 2929 | "bFrameIntervalType=%d" , |
| 2930 | desc->bLength, |
| 2931 | desc->bDescriptorType, |
| 2932 | desc->bDescriptorSubtype, |
| 2933 | desc->bFrameIndex, |
| 2934 | desc->bmCapabilities, |
| 2935 | UGETW(desc->wWidth), |
| 2936 | UGETW(desc->wHeight), |
| 2937 | UGETDW(desc->dwMinBitRate), |
| 2938 | UGETDW(desc->dwMaxBitRate), |
| 2939 | UGETDW(desc->dwMaxVideoFrameBufferSize), |
| 2940 | UGETDW(desc->dwDefaultFrameInterval), |
| 2941 | desc->bFrameIntervalType); |
| 2942 | } |
| 2943 | |
| 2944 | static void |
| 2945 | print_vs_format_dv_descriptor( |
| 2946 | const uvideo_vs_format_dv_descriptor_t *desc) |
| 2947 | { |
| 2948 | printf("MJPEG format: " |
| 2949 | "Len=%d Type=0x%02x Subtype=0x%02x " |
| 2950 | "bFormatIndex=%d dwMaxVideoFrameBufferSize=%u " |
| 2951 | "bFormatType/Rate=%d bFormatType/Format=%d" , |
| 2952 | desc->bLength, |
| 2953 | desc->bDescriptorType, |
| 2954 | desc->bDescriptorSubtype, |
| 2955 | desc->bFormatIndex, |
| 2956 | UGETDW(desc->dwMaxVideoFrameBufferSize), |
| 2957 | UVIDEO_GET_DV_FREQ(desc->bFormatType), |
| 2958 | UVIDEO_GET_DV_FORMAT(desc->bFormatType)); |
| 2959 | } |
| 2960 | |
| 2961 | #endif /* !UVIDEO_DEBUG */ |
| 2962 | |
| 2963 | static const usb_descriptor_t * |
| 2964 | usb_desc_iter_peek_next(usbd_desc_iter_t *iter) |
| 2965 | { |
| 2966 | const usb_descriptor_t *desc; |
| 2967 | |
| 2968 | if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) { |
| 2969 | if (iter->cur != iter->end) |
| 2970 | printf("usb_desc_iter_peek_next: bad descriptor\n" ); |
| 2971 | return NULL; |
| 2972 | } |
| 2973 | desc = (const usb_descriptor_t *)iter->cur; |
| 2974 | if (desc->bLength == 0) { |
| 2975 | printf("usb_desc_iter_peek_next: descriptor length = 0\n" ); |
| 2976 | return NULL; |
| 2977 | } |
| 2978 | if (iter->cur + desc->bLength > iter->end) { |
| 2979 | printf("usb_desc_iter_peek_next: descriptor length too large\n" ); |
| 2980 | return NULL; |
| 2981 | } |
| 2982 | return desc; |
| 2983 | } |
| 2984 | |
| 2985 | /* Return the next interface descriptor, skipping over any other |
| 2986 | * descriptors. Returns NULL at the end or on error. */ |
| 2987 | static const usb_interface_descriptor_t * |
| 2988 | usb_desc_iter_next_interface(usbd_desc_iter_t *iter) |
| 2989 | { |
| 2990 | const usb_descriptor_t *desc; |
| 2991 | |
| 2992 | while ((desc = usb_desc_iter_peek_next(iter)) != NULL && |
| 2993 | desc->bDescriptorType != UDESC_INTERFACE) |
| 2994 | { |
| 2995 | usb_desc_iter_next(iter); |
| 2996 | } |
| 2997 | |
| 2998 | return (const usb_interface_descriptor_t *)usb_desc_iter_next(iter); |
| 2999 | } |
| 3000 | |
| 3001 | /* Returns the next non-interface descriptor, returning NULL when the |
| 3002 | * next descriptor would be an interface descriptor. */ |
| 3003 | static const usb_descriptor_t * |
| 3004 | usb_desc_iter_next_non_interface(usbd_desc_iter_t *iter) |
| 3005 | { |
| 3006 | const usb_descriptor_t *desc; |
| 3007 | |
| 3008 | if ((desc = usb_desc_iter_peek_next(iter)) != NULL && |
| 3009 | desc->bDescriptorType != UDESC_INTERFACE) |
| 3010 | { |
| 3011 | return usb_desc_iter_next(iter); |
| 3012 | } else { |
| 3013 | return NULL; |
| 3014 | } |
| 3015 | } |
| 3016 | |
| 3017 | #ifdef UVIDEO_DEBUG |
| 3018 | static void |
| 3019 | usb_guid_print(const usb_guid_t *guid) |
| 3020 | { |
| 3021 | printf("%04X-%02X-%02X-" , |
| 3022 | UGETDW(guid->data1), |
| 3023 | UGETW(guid->data2), |
| 3024 | UGETW(guid->data3)); |
| 3025 | printf("%02X%02X-" , |
| 3026 | guid->data4[0], |
| 3027 | guid->data4[1]); |
| 3028 | printf("%02X%02X%02X%02X%02X%02X" , |
| 3029 | guid->data4[2], |
| 3030 | guid->data4[3], |
| 3031 | guid->data4[4], |
| 3032 | guid->data4[5], |
| 3033 | guid->data4[6], |
| 3034 | guid->data4[7]); |
| 3035 | } |
| 3036 | #endif /* !UVIDEO_DEBUG */ |
| 3037 | |
| 3038 | /* Returns less than zero, zero, or greater than zero if uguid is less |
| 3039 | * than, equal to, or greater than guid. */ |
| 3040 | static int |
| 3041 | usb_guid_cmp(const usb_guid_t *uguid, const guid_t *guid) |
| 3042 | { |
| 3043 | if (guid->data1 > UGETDW(uguid->data1)) |
| 3044 | return 1; |
| 3045 | else if (guid->data1 < UGETDW(uguid->data1)) |
| 3046 | return -1; |
| 3047 | |
| 3048 | if (guid->data2 > UGETW(uguid->data2)) |
| 3049 | return 1; |
| 3050 | else if (guid->data2 < UGETW(uguid->data2)) |
| 3051 | return -1; |
| 3052 | |
| 3053 | if (guid->data3 > UGETW(uguid->data3)) |
| 3054 | return 1; |
| 3055 | else if (guid->data3 < UGETW(uguid->data3)) |
| 3056 | return -1; |
| 3057 | |
| 3058 | return memcmp(guid->data4, uguid->data4, 8); |
| 3059 | } |
| 3060 | |