1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * USB Video Class definitions. 4 * 5 * Copyright (C) 2009 Laurent Pinchart <laurent.pinchart@skynet.be> 6 * 7 * This file holds USB constants and structures defined by the USB Device 8 * Class Definition for Video Devices. Unless otherwise stated, comments 9 * below reference relevant sections of the USB Video Class 1.1 specification 10 * available at 11 * 12 * http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip 13 */ 14 15 #ifndef __LINUX_USB_VIDEO_H 16 #define __LINUX_USB_VIDEO_H 17 18 #include <linux/types.h> 19 20 /* -------------------------------------------------------------------------- 21 * UVC constants 22 */ 23 24 /* A.2. Video Interface Subclass Codes */ 25 #define UVC_SC_UNDEFINED 0x00 26 #define UVC_SC_VIDEOCONTROL 0x01 27 #define UVC_SC_VIDEOSTREAMING 0x02 28 #define UVC_SC_VIDEO_INTERFACE_COLLECTION 0x03 29 30 /* A.3. Video Interface Protocol Codes */ 31 #define UVC_PC_PROTOCOL_UNDEFINED 0x00 32 #define UVC_PC_PROTOCOL_15 0x01 33 34 /* A.5. Video Class-Specific VC Interface Descriptor Subtypes */ 35 #define UVC_VC_DESCRIPTOR_UNDEFINED 0x00 36 #define UVC_VC_HEADER 0x01 37 #define UVC_VC_INPUT_TERMINAL 0x02 38 #define UVC_VC_OUTPUT_TERMINAL 0x03 39 #define UVC_VC_SELECTOR_UNIT 0x04 40 #define UVC_VC_PROCESSING_UNIT 0x05 41 #define UVC_VC_EXTENSION_UNIT 0x06 42 43 /* A.6. Video Class-Specific VS Interface Descriptor Subtypes */ 44 #define UVC_VS_UNDEFINED 0x00 45 #define UVC_VS_INPUT_HEADER 0x01 46 #define UVC_VS_OUTPUT_HEADER 0x02 47 #define UVC_VS_STILL_IMAGE_FRAME 0x03 48 #define UVC_VS_FORMAT_UNCOMPRESSED 0x04 49 #define UVC_VS_FRAME_UNCOMPRESSED 0x05 50 #define UVC_VS_FORMAT_MJPEG 0x06 51 #define UVC_VS_FRAME_MJPEG 0x07 52 #define UVC_VS_FORMAT_MPEG2TS 0x0a 53 #define UVC_VS_FORMAT_DV 0x0c 54 #define UVC_VS_COLORFORMAT 0x0d 55 #define UVC_VS_FORMAT_FRAME_BASED 0x10 56 #define UVC_VS_FRAME_FRAME_BASED 0x11 57 #define UVC_VS_FORMAT_STREAM_BASED 0x12 58 59 /* A.7. Video Class-Specific Endpoint Descriptor Subtypes */ 60 #define UVC_EP_UNDEFINED 0x00 61 #define UVC_EP_GENERAL 0x01 62 #define UVC_EP_ENDPOINT 0x02 63 #define UVC_EP_INTERRUPT 0x03 64 65 /* A.8. Video Class-Specific Request Codes */ 66 #define UVC_RC_UNDEFINED 0x00 67 #define UVC_SET_CUR 0x01 68 #define UVC_GET_CUR 0x81 69 #define UVC_GET_MIN 0x82 70 #define UVC_GET_MAX 0x83 71 #define UVC_GET_RES 0x84 72 #define UVC_GET_LEN 0x85 73 #define UVC_GET_INFO 0x86 74 #define UVC_GET_DEF 0x87 75 76 /* A.9.1. VideoControl Interface Control Selectors */ 77 #define UVC_VC_CONTROL_UNDEFINED 0x00 78 #define UVC_VC_VIDEO_POWER_MODE_CONTROL 0x01 79 #define UVC_VC_REQUEST_ERROR_CODE_CONTROL 0x02 80 81 /* A.9.2. Terminal Control Selectors */ 82 #define UVC_TE_CONTROL_UNDEFINED 0x00 83 84 /* A.9.3. Selector Unit Control Selectors */ 85 #define UVC_SU_CONTROL_UNDEFINED 0x00 86 #define UVC_SU_INPUT_SELECT_CONTROL 0x01 87 88 /* A.9.4. Camera Terminal Control Selectors */ 89 #define UVC_CT_CONTROL_UNDEFINED 0x00 90 #define UVC_CT_SCANNING_MODE_CONTROL 0x01 91 #define UVC_CT_AE_MODE_CONTROL 0x02 92 #define UVC_CT_AE_PRIORITY_CONTROL 0x03 93 #define UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL 0x04 94 #define UVC_CT_EXPOSURE_TIME_RELATIVE_CONTROL 0x05 95 #define UVC_CT_FOCUS_ABSOLUTE_CONTROL 0x06 96 #define UVC_CT_FOCUS_RELATIVE_CONTROL 0x07 97 #define UVC_CT_FOCUS_AUTO_CONTROL 0x08 98 #define UVC_CT_IRIS_ABSOLUTE_CONTROL 0x09 99 #define UVC_CT_IRIS_RELATIVE_CONTROL 0x0a 100 #define UVC_CT_ZOOM_ABSOLUTE_CONTROL 0x0b 101 #define UVC_CT_ZOOM_RELATIVE_CONTROL 0x0c 102 #define UVC_CT_PANTILT_ABSOLUTE_CONTROL 0x0d 103 #define UVC_CT_PANTILT_RELATIVE_CONTROL 0x0e 104 #define UVC_CT_ROLL_ABSOLUTE_CONTROL 0x0f 105 #define UVC_CT_ROLL_RELATIVE_CONTROL 0x10 106 #define UVC_CT_PRIVACY_CONTROL 0x11 107 108 /* A.9.5. Processing Unit Control Selectors */ 109 #define UVC_PU_CONTROL_UNDEFINED 0x00 110 #define UVC_PU_BACKLIGHT_COMPENSATION_CONTROL 0x01 111 #define UVC_PU_BRIGHTNESS_CONTROL 0x02 112 #define UVC_PU_CONTRAST_CONTROL 0x03 113 #define UVC_PU_GAIN_CONTROL 0x04 114 #define UVC_PU_POWER_LINE_FREQUENCY_CONTROL 0x05 115 #define UVC_PU_HUE_CONTROL 0x06 116 #define UVC_PU_SATURATION_CONTROL 0x07 117 #define UVC_PU_SHARPNESS_CONTROL 0x08 118 #define UVC_PU_GAMMA_CONTROL 0x09 119 #define UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a 120 #define UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b 121 #define UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL 0x0c 122 #define UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d 123 #define UVC_PU_DIGITAL_MULTIPLIER_CONTROL 0x0e 124 #define UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL 0x0f 125 #define UVC_PU_HUE_AUTO_CONTROL 0x10 126 #define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11 127 #define UVC_PU_ANALOG_LOCK_STATUS_CONTROL 0x12 128 129 /* A.9.7. VideoStreaming Interface Control Selectors */ 130 #define UVC_VS_CONTROL_UNDEFINED 0x00 131 #define UVC_VS_PROBE_CONTROL 0x01 132 #define UVC_VS_COMMIT_CONTROL 0x02 133 #define UVC_VS_STILL_PROBE_CONTROL 0x03 134 #define UVC_VS_STILL_COMMIT_CONTROL 0x04 135 #define UVC_VS_STILL_IMAGE_TRIGGER_CONTROL 0x05 136 #define UVC_VS_STREAM_ERROR_CODE_CONTROL 0x06 137 #define UVC_VS_GENERATE_KEY_FRAME_CONTROL 0x07 138 #define UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL 0x08 139 #define UVC_VS_SYNC_DELAY_CONTROL 0x09 140 141 /* B.1. USB Terminal Types */ 142 #define UVC_TT_VENDOR_SPECIFIC 0x0100 143 #define UVC_TT_STREAMING 0x0101 144 145 /* B.2. Input Terminal Types */ 146 #define UVC_ITT_VENDOR_SPECIFIC 0x0200 147 #define UVC_ITT_CAMERA 0x0201 148 #define UVC_ITT_MEDIA_TRANSPORT_INPUT 0x0202 149 150 /* B.3. Output Terminal Types */ 151 #define UVC_OTT_VENDOR_SPECIFIC 0x0300 152 #define UVC_OTT_DISPLAY 0x0301 153 #define UVC_OTT_MEDIA_TRANSPORT_OUTPUT 0x0302 154 155 /* B.4. External Terminal Types */ 156 #define UVC_EXTERNAL_VENDOR_SPECIFIC 0x0400 157 #define UVC_COMPOSITE_CONNECTOR 0x0401 158 #define UVC_SVIDEO_CONNECTOR 0x0402 159 #define UVC_COMPONENT_CONNECTOR 0x0403 160 161 /* 2.4.2.2. Status Packet Type */ 162 #define UVC_STATUS_TYPE_CONTROL 1 163 #define UVC_STATUS_TYPE_STREAMING 2 164 165 /* 2.4.3.3. Payload Header Information */ 166 #define UVC_STREAM_EOH (1 << 7) 167 #define UVC_STREAM_ERR (1 << 6) 168 #define UVC_STREAM_STI (1 << 5) 169 #define UVC_STREAM_RES (1 << 4) 170 #define UVC_STREAM_SCR (1 << 3) 171 #define UVC_STREAM_PTS (1 << 2) 172 #define UVC_STREAM_EOF (1 << 1) 173 #define UVC_STREAM_FID (1 << 0) 174 175 /* 4.1.2. Control Capabilities */ 176 #define UVC_CONTROL_CAP_GET (1 << 0) 177 #define UVC_CONTROL_CAP_SET (1 << 1) 178 #define UVC_CONTROL_CAP_DISABLED (1 << 2) 179 #define UVC_CONTROL_CAP_AUTOUPDATE (1 << 3) 180 #define UVC_CONTROL_CAP_ASYNCHRONOUS (1 << 4) 181 182 /* 3.9.2.6 Color Matching Descriptor Values */ 183 enum uvc_color_primaries_values { 184 UVC_COLOR_PRIMARIES_UNSPECIFIED, 185 UVC_COLOR_PRIMARIES_BT_709_SRGB, 186 UVC_COLOR_PRIMARIES_BT_470_2_M, 187 UVC_COLOR_PRIMARIES_BT_470_2_B_G, 188 UVC_COLOR_PRIMARIES_SMPTE_170M, 189 UVC_COLOR_PRIMARIES_SMPTE_240M, 190 }; 191 192 enum uvc_transfer_characteristics_values { 193 UVC_TRANSFER_CHARACTERISTICS_UNSPECIFIED, 194 UVC_TRANSFER_CHARACTERISTICS_BT_709, 195 UVC_TRANSFER_CHARACTERISTICS_BT_470_2_M, 196 UVC_TRANSFER_CHARACTERISTICS_BT_470_2_B_G, 197 UVC_TRANSFER_CHARACTERISTICS_SMPTE_170M, 198 UVC_TRANSFER_CHARACTERISTICS_SMPTE_240M, 199 UVC_TRANSFER_CHARACTERISTICS_LINEAR, 200 UVC_TRANSFER_CHARACTERISTICS_SRGB, 201 }; 202 203 enum uvc_matrix_coefficients { 204 UVC_MATRIX_COEFFICIENTS_UNSPECIFIED, 205 UVC_MATRIX_COEFFICIENTS_BT_709, 206 UVC_MATRIX_COEFFICIENTS_FCC, 207 UVC_MATRIX_COEFFICIENTS_BT_470_2_B_G, 208 UVC_MATRIX_COEFFICIENTS_SMPTE_170M, 209 UVC_MATRIX_COEFFICIENTS_SMPTE_240M, 210 }; 211 212 /* ------------------------------------------------------------------------ 213 * UVC structures 214 */ 215 216 /* All UVC descriptors have these 3 fields at the beginning */ 217 struct uvc_descriptor_header { 218 __u8 bLength; 219 __u8 bDescriptorType; 220 __u8 bDescriptorSubType; 221 } __attribute__((packed)); 222 223 /* 3.7.2. Video Control Interface Header Descriptor */ 224 struct uvc_header_descriptor { 225 __u8 bLength; 226 __u8 bDescriptorType; 227 __u8 bDescriptorSubType; 228 __le16 bcdUVC; 229 __le16 wTotalLength; 230 __le32 dwClockFrequency; 231 __u8 bInCollection; 232 __u8 baInterfaceNr[]; 233 } __attribute__((__packed__)); 234 235 #define UVC_DT_HEADER_SIZE(n) (12+(n)) 236 237 #define UVC_HEADER_DESCRIPTOR(n) \ 238 uvc_header_descriptor_##n 239 240 #define DECLARE_UVC_HEADER_DESCRIPTOR(n) \ 241 struct UVC_HEADER_DESCRIPTOR(n) { \ 242 __u8 bLength; \ 243 __u8 bDescriptorType; \ 244 __u8 bDescriptorSubType; \ 245 __le16 bcdUVC; \ 246 __le16 wTotalLength; \ 247 __le32 dwClockFrequency; \ 248 __u8 bInCollection; \ 249 __u8 baInterfaceNr[n]; \ 250 } __attribute__ ((packed)) 251 252 /* 3.7.2.1. Input Terminal Descriptor */ 253 struct uvc_input_terminal_descriptor { 254 __u8 bLength; 255 __u8 bDescriptorType; 256 __u8 bDescriptorSubType; 257 __u8 bTerminalID; 258 __le16 wTerminalType; 259 __u8 bAssocTerminal; 260 __u8 iTerminal; 261 } __attribute__((__packed__)); 262 263 #define UVC_DT_INPUT_TERMINAL_SIZE 8 264 265 /* 3.7.2.2. Output Terminal Descriptor */ 266 struct uvc_output_terminal_descriptor { 267 __u8 bLength; 268 __u8 bDescriptorType; 269 __u8 bDescriptorSubType; 270 __u8 bTerminalID; 271 __le16 wTerminalType; 272 __u8 bAssocTerminal; 273 __u8 bSourceID; 274 __u8 iTerminal; 275 } __attribute__((__packed__)); 276 277 #define UVC_DT_OUTPUT_TERMINAL_SIZE 9 278 279 /* 3.7.2.3. Camera Terminal Descriptor */ 280 struct uvc_camera_terminal_descriptor { 281 __u8 bLength; 282 __u8 bDescriptorType; 283 __u8 bDescriptorSubType; 284 __u8 bTerminalID; 285 __le16 wTerminalType; 286 __u8 bAssocTerminal; 287 __u8 iTerminal; 288 __le16 wObjectiveFocalLengthMin; 289 __le16 wObjectiveFocalLengthMax; 290 __le16 wOcularFocalLength; 291 __u8 bControlSize; 292 __u8 bmControls[3]; 293 } __attribute__((__packed__)); 294 295 #define UVC_DT_CAMERA_TERMINAL_SIZE(n) (15+(n)) 296 297 /* 3.7.2.4. Selector Unit Descriptor */ 298 struct uvc_selector_unit_descriptor { 299 __u8 bLength; 300 __u8 bDescriptorType; 301 __u8 bDescriptorSubType; 302 __u8 bUnitID; 303 __u8 bNrInPins; 304 __u8 baSourceID[0]; 305 __u8 iSelector; 306 } __attribute__((__packed__)); 307 308 #define UVC_DT_SELECTOR_UNIT_SIZE(n) (6+(n)) 309 310 #define UVC_SELECTOR_UNIT_DESCRIPTOR(n) \ 311 uvc_selector_unit_descriptor_##n 312 313 #define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n) \ 314 struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) { \ 315 __u8 bLength; \ 316 __u8 bDescriptorType; \ 317 __u8 bDescriptorSubType; \ 318 __u8 bUnitID; \ 319 __u8 bNrInPins; \ 320 __u8 baSourceID[n]; \ 321 __u8 iSelector; \ 322 } __attribute__ ((packed)) 323 324 /* 3.7.2.5. Processing Unit Descriptor */ 325 struct uvc_processing_unit_descriptor { 326 __u8 bLength; 327 __u8 bDescriptorType; 328 __u8 bDescriptorSubType; 329 __u8 bUnitID; 330 __u8 bSourceID; 331 __le16 wMaxMultiplier; 332 __u8 bControlSize; 333 __u8 bmControls[2]; 334 __u8 iProcessing; 335 __u8 bmVideoStandards; 336 } __attribute__((__packed__)); 337 338 #define UVC_DT_PROCESSING_UNIT_SIZE(n) (10+(n)) 339 340 /* 3.7.2.6. Extension Unit Descriptor */ 341 struct uvc_extension_unit_descriptor { 342 __u8 bLength; 343 __u8 bDescriptorType; 344 __u8 bDescriptorSubType; 345 __u8 bUnitID; 346 __u8 guidExtensionCode[16]; 347 __u8 bNumControls; 348 __u8 bNrInPins; 349 __u8 baSourceID[0]; 350 __u8 bControlSize; 351 __u8 bmControls[0]; 352 __u8 iExtension; 353 } __attribute__((__packed__)); 354 355 #define UVC_DT_EXTENSION_UNIT_SIZE(p, n) (24+(p)+(n)) 356 357 #define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \ 358 uvc_extension_unit_descriptor_##p_##n 359 360 #define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \ 361 struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) { \ 362 __u8 bLength; \ 363 __u8 bDescriptorType; \ 364 __u8 bDescriptorSubType; \ 365 __u8 bUnitID; \ 366 __u8 guidExtensionCode[16]; \ 367 __u8 bNumControls; \ 368 __u8 bNrInPins; \ 369 __u8 baSourceID[p]; \ 370 __u8 bControlSize; \ 371 __u8 bmControls[n]; \ 372 __u8 iExtension; \ 373 } __attribute__ ((packed)) 374 375 /* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */ 376 struct uvc_control_endpoint_descriptor { 377 __u8 bLength; 378 __u8 bDescriptorType; 379 __u8 bDescriptorSubType; 380 __le16 wMaxTransferSize; 381 } __attribute__((__packed__)); 382 383 #define UVC_DT_CONTROL_ENDPOINT_SIZE 5 384 385 /* 3.9.2.1. Input Header Descriptor */ 386 struct uvc_input_header_descriptor { 387 __u8 bLength; 388 __u8 bDescriptorType; 389 __u8 bDescriptorSubType; 390 __u8 bNumFormats; 391 __le16 wTotalLength; 392 __u8 bEndpointAddress; 393 __u8 bmInfo; 394 __u8 bTerminalLink; 395 __u8 bStillCaptureMethod; 396 __u8 bTriggerSupport; 397 __u8 bTriggerUsage; 398 __u8 bControlSize; 399 __u8 bmaControls[]; 400 } __attribute__((__packed__)); 401 402 #define UVC_DT_INPUT_HEADER_SIZE(n, p) (13+(n*p)) 403 404 #define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \ 405 uvc_input_header_descriptor_##n_##p 406 407 #define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p) \ 408 struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) { \ 409 __u8 bLength; \ 410 __u8 bDescriptorType; \ 411 __u8 bDescriptorSubType; \ 412 __u8 bNumFormats; \ 413 __le16 wTotalLength; \ 414 __u8 bEndpointAddress; \ 415 __u8 bmInfo; \ 416 __u8 bTerminalLink; \ 417 __u8 bStillCaptureMethod; \ 418 __u8 bTriggerSupport; \ 419 __u8 bTriggerUsage; \ 420 __u8 bControlSize; \ 421 __u8 bmaControls[p][n]; \ 422 } __attribute__ ((packed)) 423 424 /* 3.9.2.2. Output Header Descriptor */ 425 struct uvc_output_header_descriptor { 426 __u8 bLength; 427 __u8 bDescriptorType; 428 __u8 bDescriptorSubType; 429 __u8 bNumFormats; 430 __le16 wTotalLength; 431 __u8 bEndpointAddress; 432 __u8 bTerminalLink; 433 __u8 bControlSize; 434 __u8 bmaControls[]; 435 } __attribute__((__packed__)); 436 437 #define UVC_DT_OUTPUT_HEADER_SIZE(n, p) (9+(n*p)) 438 439 #define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \ 440 uvc_output_header_descriptor_##n_##p 441 442 #define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \ 443 struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) { \ 444 __u8 bLength; \ 445 __u8 bDescriptorType; \ 446 __u8 bDescriptorSubType; \ 447 __u8 bNumFormats; \ 448 __le16 wTotalLength; \ 449 __u8 bEndpointAddress; \ 450 __u8 bTerminalLink; \ 451 __u8 bControlSize; \ 452 __u8 bmaControls[p][n]; \ 453 } __attribute__ ((packed)) 454 455 /* 3.9.2.6. Color matching descriptor */ 456 struct uvc_color_matching_descriptor { 457 __u8 bLength; 458 __u8 bDescriptorType; 459 __u8 bDescriptorSubType; 460 __u8 bColorPrimaries; 461 __u8 bTransferCharacteristics; 462 __u8 bMatrixCoefficients; 463 } __attribute__((__packed__)); 464 465 #define UVC_DT_COLOR_MATCHING_SIZE 6 466 467 /* 4.3.1.1. Video Probe and Commit Controls */ 468 struct uvc_streaming_control { 469 __u16 bmHint; 470 __u8 bFormatIndex; 471 __u8 bFrameIndex; 472 __u32 dwFrameInterval; 473 __u16 wKeyFrameRate; 474 __u16 wPFrameRate; 475 __u16 wCompQuality; 476 __u16 wCompWindowSize; 477 __u16 wDelay; 478 __u32 dwMaxVideoFrameSize; 479 __u32 dwMaxPayloadTransferSize; 480 __u32 dwClockFrequency; 481 __u8 bmFramingInfo; 482 __u8 bPreferedVersion; 483 __u8 bMinVersion; 484 __u8 bMaxVersion; 485 } __attribute__((__packed__)); 486 487 /* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */ 488 struct uvc_format_uncompressed { 489 __u8 bLength; 490 __u8 bDescriptorType; 491 __u8 bDescriptorSubType; 492 __u8 bFormatIndex; 493 __u8 bNumFrameDescriptors; 494 __u8 guidFormat[16]; 495 __u8 bBitsPerPixel; 496 __u8 bDefaultFrameIndex; 497 __u8 bAspectRatioX; 498 __u8 bAspectRatioY; 499 __u8 bmInterlaceFlags; 500 __u8 bCopyProtect; 501 } __attribute__((__packed__)); 502 503 #define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27 504 505 /* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */ 506 struct uvc_frame_uncompressed { 507 __u8 bLength; 508 __u8 bDescriptorType; 509 __u8 bDescriptorSubType; 510 __u8 bFrameIndex; 511 __u8 bmCapabilities; 512 __le16 wWidth; 513 __le16 wHeight; 514 __le32 dwMinBitRate; 515 __le32 dwMaxBitRate; 516 __le32 dwMaxVideoFrameBufferSize; 517 __le32 dwDefaultFrameInterval; 518 __u8 bFrameIntervalType; 519 __le32 dwFrameInterval[]; 520 } __attribute__((__packed__)); 521 522 #define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n) (26+4*(n)) 523 524 #define UVC_FRAME_UNCOMPRESSED(n) \ 525 uvc_frame_uncompressed_##n 526 527 #define DECLARE_UVC_FRAME_UNCOMPRESSED(n) \ 528 struct UVC_FRAME_UNCOMPRESSED(n) { \ 529 __u8 bLength; \ 530 __u8 bDescriptorType; \ 531 __u8 bDescriptorSubType; \ 532 __u8 bFrameIndex; \ 533 __u8 bmCapabilities; \ 534 __le16 wWidth; \ 535 __le16 wHeight; \ 536 __le32 dwMinBitRate; \ 537 __le32 dwMaxBitRate; \ 538 __le32 dwMaxVideoFrameBufferSize; \ 539 __le32 dwDefaultFrameInterval; \ 540 __u8 bFrameIntervalType; \ 541 __le32 dwFrameInterval[n]; \ 542 } __attribute__ ((packed)) 543 544 /* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */ 545 struct uvc_format_mjpeg { 546 __u8 bLength; 547 __u8 bDescriptorType; 548 __u8 bDescriptorSubType; 549 __u8 bFormatIndex; 550 __u8 bNumFrameDescriptors; 551 __u8 bmFlags; 552 __u8 bDefaultFrameIndex; 553 __u8 bAspectRatioX; 554 __u8 bAspectRatioY; 555 __u8 bmInterlaceFlags; 556 __u8 bCopyProtect; 557 } __attribute__((__packed__)); 558 559 #define UVC_DT_FORMAT_MJPEG_SIZE 11 560 561 /* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */ 562 struct uvc_frame_mjpeg { 563 __u8 bLength; 564 __u8 bDescriptorType; 565 __u8 bDescriptorSubType; 566 __u8 bFrameIndex; 567 __u8 bmCapabilities; 568 __le16 wWidth; 569 __le16 wHeight; 570 __le32 dwMinBitRate; 571 __le32 dwMaxBitRate; 572 __le32 dwMaxVideoFrameBufferSize; 573 __le32 dwDefaultFrameInterval; 574 __u8 bFrameIntervalType; 575 __le32 dwFrameInterval[]; 576 } __attribute__((__packed__)); 577 578 #define UVC_DT_FRAME_MJPEG_SIZE(n) (26+4*(n)) 579 580 #define UVC_FRAME_MJPEG(n) \ 581 uvc_frame_mjpeg_##n 582 583 #define DECLARE_UVC_FRAME_MJPEG(n) \ 584 struct UVC_FRAME_MJPEG(n) { \ 585 __u8 bLength; \ 586 __u8 bDescriptorType; \ 587 __u8 bDescriptorSubType; \ 588 __u8 bFrameIndex; \ 589 __u8 bmCapabilities; \ 590 __le16 wWidth; \ 591 __le16 wHeight; \ 592 __le32 dwMinBitRate; \ 593 __le32 dwMaxBitRate; \ 594 __le32 dwMaxVideoFrameBufferSize; \ 595 __le32 dwDefaultFrameInterval; \ 596 __u8 bFrameIntervalType; \ 597 __le32 dwFrameInterval[n]; \ 598 } __attribute__ ((packed)) 599 600 #endif /* __LINUX_USB_VIDEO_H */ 601 602