include/uapi/linux/usb/video.h

   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         __u16 bcdUVC;
 229         __u16 wTotalLength;
 230         __u32 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         __u16 bcdUVC;                                   \
 246         __u16 wTotalLength;                             \
 247         __u32 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         __u16 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         __u16 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         __u16 wTerminalType;
 286         __u8  bAssocTerminal;
 287         __u8  iTerminal;
 288         __u16 wObjectiveFocalLengthMin;
 289         __u16 wObjectiveFocalLengthMax;
 290         __u16 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         __u16 wMaxMultiplier;
 332         __u8  bControlSize;
 333         __u8  bmControls[2];
 334         __u8  iProcessing;
 335 } __attribute__((__packed__));
 336
 337 #define UVC_DT_PROCESSING_UNIT_SIZE(n)                  (9+(n))
 338
 339 /* 3.7.2.6. Extension Unit Descriptor */
 340 struct uvc_extension_unit_descriptor {
 341         __u8  bLength;
 342         __u8  bDescriptorType;
 343         __u8  bDescriptorSubType;
 344         __u8  bUnitID;
 345         __u8  guidExtensionCode[16];
 346         __u8  bNumControls;
 347         __u8  bNrInPins;
 348         __u8  baSourceID[0];
 349         __u8  bControlSize;
 350         __u8  bmControls[0];
 351         __u8  iExtension;
 352 } __attribute__((__packed__));
 353
 354 #define UVC_DT_EXTENSION_UNIT_SIZE(p, n)                (24+(p)+(n))
 355
 356 #define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
 357         uvc_extension_unit_descriptor_##p_##n
 358
 359 #define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n)     \
 360 struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) {            \
 361         __u8  bLength;                                  \
 362         __u8  bDescriptorType;                          \
 363         __u8  bDescriptorSubType;                       \
 364         __u8  bUnitID;                                  \
 365         __u8  guidExtensionCode[16];                    \
 366         __u8  bNumControls;                             \
 367         __u8  bNrInPins;                                \
 368         __u8  baSourceID[p];                            \
 369         __u8  bControlSize;                             \
 370         __u8  bmControls[n];                            \
 371         __u8  iExtension;                               \
 372 } __attribute__ ((packed))
 373
 374 /* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */
 375 struct uvc_control_endpoint_descriptor {
 376         __u8  bLength;
 377         __u8  bDescriptorType;
 378         __u8  bDescriptorSubType;
 379         __u16 wMaxTransferSize;
 380 } __attribute__((__packed__));
 381
 382 #define UVC_DT_CONTROL_ENDPOINT_SIZE                    5
 383
 384 /* 3.9.2.1. Input Header Descriptor */
 385 struct uvc_input_header_descriptor {
 386         __u8  bLength;
 387         __u8  bDescriptorType;
 388         __u8  bDescriptorSubType;
 389         __u8  bNumFormats;
 390         __u16 wTotalLength;
 391         __u8  bEndpointAddress;
 392         __u8  bmInfo;
 393         __u8  bTerminalLink;
 394         __u8  bStillCaptureMethod;
 395         __u8  bTriggerSupport;
 396         __u8  bTriggerUsage;
 397         __u8  bControlSize;
 398         __u8  bmaControls[];
 399 } __attribute__((__packed__));
 400
 401 #define UVC_DT_INPUT_HEADER_SIZE(n, p)                  (13+(n*p))
 402
 403 #define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
 404         uvc_input_header_descriptor_##n_##p
 405
 406 #define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p)       \
 407 struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) {              \
 408         __u8  bLength;                                  \
 409         __u8  bDescriptorType;                          \
 410         __u8  bDescriptorSubType;                       \
 411         __u8  bNumFormats;                              \
 412         __u16 wTotalLength;                             \
 413         __u8  bEndpointAddress;                         \
 414         __u8  bmInfo;                                   \
 415         __u8  bTerminalLink;                            \
 416         __u8  bStillCaptureMethod;                      \
 417         __u8  bTriggerSupport;                          \
 418         __u8  bTriggerUsage;                            \
 419         __u8  bControlSize;                             \
 420         __u8  bmaControls[p][n];                        \
 421 } __attribute__ ((packed))
 422
 423 /* 3.9.2.2. Output Header Descriptor */
 424 struct uvc_output_header_descriptor {
 425         __u8  bLength;
 426         __u8  bDescriptorType;
 427         __u8  bDescriptorSubType;
 428         __u8  bNumFormats;
 429         __u16 wTotalLength;
 430         __u8  bEndpointAddress;
 431         __u8  bTerminalLink;
 432         __u8  bControlSize;
 433         __u8  bmaControls[];
 434 } __attribute__((__packed__));
 435
 436 #define UVC_DT_OUTPUT_HEADER_SIZE(n, p)                 (9+(n*p))
 437
 438 #define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
 439         uvc_output_header_descriptor_##n_##p
 440
 441 #define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p)      \
 442 struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) {             \
 443         __u8  bLength;                                  \
 444         __u8  bDescriptorType;                          \
 445         __u8  bDescriptorSubType;                       \
 446         __u8  bNumFormats;                              \
 447         __u16 wTotalLength;                             \
 448         __u8  bEndpointAddress;                         \
 449         __u8  bTerminalLink;                            \
 450         __u8  bControlSize;                             \
 451         __u8  bmaControls[p][n];                        \
 452 } __attribute__ ((packed))
 453
 454 /* 3.9.2.6. Color matching descriptor */
 455 struct uvc_color_matching_descriptor {
 456         __u8  bLength;
 457         __u8  bDescriptorType;
 458         __u8  bDescriptorSubType;
 459         __u8  bColorPrimaries;
 460         __u8  bTransferCharacteristics;
 461         __u8  bMatrixCoefficients;
 462 } __attribute__((__packed__));
 463
 464 #define UVC_DT_COLOR_MATCHING_SIZE                      6
 465
 466 /* 4.3.1.1. Video Probe and Commit Controls */
 467 struct uvc_streaming_control {
 468         __u16 bmHint;
 469         __u8  bFormatIndex;
 470         __u8  bFrameIndex;
 471         __u32 dwFrameInterval;
 472         __u16 wKeyFrameRate;
 473         __u16 wPFrameRate;
 474         __u16 wCompQuality;
 475         __u16 wCompWindowSize;
 476         __u16 wDelay;
 477         __u32 dwMaxVideoFrameSize;
 478         __u32 dwMaxPayloadTransferSize;
 479         __u32 dwClockFrequency;
 480         __u8  bmFramingInfo;
 481         __u8  bPreferedVersion;
 482         __u8  bMinVersion;
 483         __u8  bMaxVersion;
 484 } __attribute__((__packed__));
 485
 486 /* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */
 487 struct uvc_format_uncompressed {
 488         __u8  bLength;
 489         __u8  bDescriptorType;
 490         __u8  bDescriptorSubType;
 491         __u8  bFormatIndex;
 492         __u8  bNumFrameDescriptors;
 493         __u8  guidFormat[16];
 494         __u8  bBitsPerPixel;
 495         __u8  bDefaultFrameIndex;
 496         __u8  bAspectRatioX;
 497         __u8  bAspectRatioY;
 498         __u8  bmInterfaceFlags;
 499         __u8  bCopyProtect;
 500 } __attribute__((__packed__));
 501
 502 #define UVC_DT_FORMAT_UNCOMPRESSED_SIZE                 27
 503
 504 /* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */
 505 struct uvc_frame_uncompressed {
 506         __u8  bLength;
 507         __u8  bDescriptorType;
 508         __u8  bDescriptorSubType;
 509         __u8  bFrameIndex;
 510         __u8  bmCapabilities;
 511         __u16 wWidth;
 512         __u16 wHeight;
 513         __u32 dwMinBitRate;
 514         __u32 dwMaxBitRate;
 515         __u32 dwMaxVideoFrameBufferSize;
 516         __u32 dwDefaultFrameInterval;
 517         __u8  bFrameIntervalType;
 518         __u32 dwFrameInterval[];
 519 } __attribute__((__packed__));
 520
 521 #define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n)               (26+4*(n))
 522
 523 #define UVC_FRAME_UNCOMPRESSED(n) \
 524         uvc_frame_uncompressed_##n
 525
 526 #define DECLARE_UVC_FRAME_UNCOMPRESSED(n)               \
 527 struct UVC_FRAME_UNCOMPRESSED(n) {                      \
 528         __u8  bLength;                                  \
 529         __u8  bDescriptorType;                          \
 530         __u8  bDescriptorSubType;                       \
 531         __u8  bFrameIndex;                              \
 532         __u8  bmCapabilities;                           \
 533         __u16 wWidth;                                   \
 534         __u16 wHeight;                                  \
 535         __u32 dwMinBitRate;                             \
 536         __u32 dwMaxBitRate;                             \
 537         __u32 dwMaxVideoFrameBufferSize;                \
 538         __u32 dwDefaultFrameInterval;                   \
 539         __u8  bFrameIntervalType;                       \
 540         __u32 dwFrameInterval[n];                       \
 541 } __attribute__ ((packed))
 542
 543 /* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */
 544 struct uvc_format_mjpeg {
 545         __u8  bLength;
 546         __u8  bDescriptorType;
 547         __u8  bDescriptorSubType;
 548         __u8  bFormatIndex;
 549         __u8  bNumFrameDescriptors;
 550         __u8  bmFlags;
 551         __u8  bDefaultFrameIndex;
 552         __u8  bAspectRatioX;
 553         __u8  bAspectRatioY;
 554         __u8  bmInterfaceFlags;
 555         __u8  bCopyProtect;
 556 } __attribute__((__packed__));
 557
 558 #define UVC_DT_FORMAT_MJPEG_SIZE                        11
 559
 560 /* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */
 561 struct uvc_frame_mjpeg {
 562         __u8  bLength;
 563         __u8  bDescriptorType;
 564         __u8  bDescriptorSubType;
 565         __u8  bFrameIndex;
 566         __u8  bmCapabilities;
 567         __u16 wWidth;
 568         __u16 wHeight;
 569         __u32 dwMinBitRate;
 570         __u32 dwMaxBitRate;
 571         __u32 dwMaxVideoFrameBufferSize;
 572         __u32 dwDefaultFrameInterval;
 573         __u8  bFrameIntervalType;
 574         __u32 dwFrameInterval[];
 575 } __attribute__((__packed__));
 576
 577 #define UVC_DT_FRAME_MJPEG_SIZE(n)                      (26+4*(n))
 578
 579 #define UVC_FRAME_MJPEG(n) \
 580         uvc_frame_mjpeg_##n
 581
 582 #define DECLARE_UVC_FRAME_MJPEG(n)                      \
 583 struct UVC_FRAME_MJPEG(n) {                             \
 584         __u8  bLength;                                  \
 585         __u8  bDescriptorType;                          \
 586         __u8  bDescriptorSubType;                       \
 587         __u8  bFrameIndex;                              \
 588         __u8  bmCapabilities;                           \
 589         __u16 wWidth;                                   \
 590         __u16 wHeight;                                  \
 591         __u32 dwMinBitRate;                             \
 592         __u32 dwMaxBitRate;                             \
 593         __u32 dwMaxVideoFrameBufferSize;                \
 594         __u32 dwDefaultFrameInterval;                   \
 595         __u8  bFrameIntervalType;                       \
 596         __u32 dwFrameInterval[n];                       \
 597 } __attribute__ ((packed))
 598
 599 #endif /* __LINUX_USB_VIDEO_H */
 600