linux-headers (unknown)
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
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