Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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#define UVC_CT_REGION_OF_INTEREST_CONTROL 0x14
108
109/* A.9.5. Processing Unit Control Selectors */
110#define UVC_PU_CONTROL_UNDEFINED 0x00
111#define UVC_PU_BACKLIGHT_COMPENSATION_CONTROL 0x01
112#define UVC_PU_BRIGHTNESS_CONTROL 0x02
113#define UVC_PU_CONTRAST_CONTROL 0x03
114#define UVC_PU_GAIN_CONTROL 0x04
115#define UVC_PU_POWER_LINE_FREQUENCY_CONTROL 0x05
116#define UVC_PU_HUE_CONTROL 0x06
117#define UVC_PU_SATURATION_CONTROL 0x07
118#define UVC_PU_SHARPNESS_CONTROL 0x08
119#define UVC_PU_GAMMA_CONTROL 0x09
120#define UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a
121#define UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b
122#define UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL 0x0c
123#define UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d
124#define UVC_PU_DIGITAL_MULTIPLIER_CONTROL 0x0e
125#define UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL 0x0f
126#define UVC_PU_HUE_AUTO_CONTROL 0x10
127#define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11
128#define UVC_PU_ANALOG_LOCK_STATUS_CONTROL 0x12
129
130/* A.9.7. VideoStreaming Interface Control Selectors */
131#define UVC_VS_CONTROL_UNDEFINED 0x00
132#define UVC_VS_PROBE_CONTROL 0x01
133#define UVC_VS_COMMIT_CONTROL 0x02
134#define UVC_VS_STILL_PROBE_CONTROL 0x03
135#define UVC_VS_STILL_COMMIT_CONTROL 0x04
136#define UVC_VS_STILL_IMAGE_TRIGGER_CONTROL 0x05
137#define UVC_VS_STREAM_ERROR_CODE_CONTROL 0x06
138#define UVC_VS_GENERATE_KEY_FRAME_CONTROL 0x07
139#define UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL 0x08
140#define UVC_VS_SYNC_DELAY_CONTROL 0x09
141
142/* B.1. USB Terminal Types */
143#define UVC_TT_VENDOR_SPECIFIC 0x0100
144#define UVC_TT_STREAMING 0x0101
145
146/* B.2. Input Terminal Types */
147#define UVC_ITT_VENDOR_SPECIFIC 0x0200
148#define UVC_ITT_CAMERA 0x0201
149#define UVC_ITT_MEDIA_TRANSPORT_INPUT 0x0202
150
151/* B.3. Output Terminal Types */
152#define UVC_OTT_VENDOR_SPECIFIC 0x0300
153#define UVC_OTT_DISPLAY 0x0301
154#define UVC_OTT_MEDIA_TRANSPORT_OUTPUT 0x0302
155
156/* B.4. External Terminal Types */
157#define UVC_EXTERNAL_VENDOR_SPECIFIC 0x0400
158#define UVC_COMPOSITE_CONNECTOR 0x0401
159#define UVC_SVIDEO_CONNECTOR 0x0402
160#define UVC_COMPONENT_CONNECTOR 0x0403
161
162/* 2.4.2.2. Status Packet Type */
163#define UVC_STATUS_TYPE_CONTROL 1
164#define UVC_STATUS_TYPE_STREAMING 2
165
166/* 2.4.3.3. Payload Header Information */
167#define UVC_STREAM_EOH (1 << 7)
168#define UVC_STREAM_ERR (1 << 6)
169#define UVC_STREAM_STI (1 << 5)
170#define UVC_STREAM_RES (1 << 4)
171#define UVC_STREAM_SCR (1 << 3)
172#define UVC_STREAM_PTS (1 << 2)
173#define UVC_STREAM_EOF (1 << 1)
174#define UVC_STREAM_FID (1 << 0)
175
176/* 4.1.2. Control Capabilities */
177#define UVC_CONTROL_CAP_GET (1 << 0)
178#define UVC_CONTROL_CAP_SET (1 << 1)
179#define UVC_CONTROL_CAP_DISABLED (1 << 2)
180#define UVC_CONTROL_CAP_AUTOUPDATE (1 << 3)
181#define UVC_CONTROL_CAP_ASYNCHRONOUS (1 << 4)
182
183/* 3.9.2.6 Color Matching Descriptor Values */
184enum uvc_color_primaries_values {
185 UVC_COLOR_PRIMARIES_UNSPECIFIED,
186 UVC_COLOR_PRIMARIES_BT_709_SRGB,
187 UVC_COLOR_PRIMARIES_BT_470_2_M,
188 UVC_COLOR_PRIMARIES_BT_470_2_B_G,
189 UVC_COLOR_PRIMARIES_SMPTE_170M,
190 UVC_COLOR_PRIMARIES_SMPTE_240M,
191};
192
193enum uvc_transfer_characteristics_values {
194 UVC_TRANSFER_CHARACTERISTICS_UNSPECIFIED,
195 UVC_TRANSFER_CHARACTERISTICS_BT_709,
196 UVC_TRANSFER_CHARACTERISTICS_BT_470_2_M,
197 UVC_TRANSFER_CHARACTERISTICS_BT_470_2_B_G,
198 UVC_TRANSFER_CHARACTERISTICS_SMPTE_170M,
199 UVC_TRANSFER_CHARACTERISTICS_SMPTE_240M,
200 UVC_TRANSFER_CHARACTERISTICS_LINEAR,
201 UVC_TRANSFER_CHARACTERISTICS_SRGB,
202};
203
204enum uvc_matrix_coefficients {
205 UVC_MATRIX_COEFFICIENTS_UNSPECIFIED,
206 UVC_MATRIX_COEFFICIENTS_BT_709,
207 UVC_MATRIX_COEFFICIENTS_FCC,
208 UVC_MATRIX_COEFFICIENTS_BT_470_2_B_G,
209 UVC_MATRIX_COEFFICIENTS_SMPTE_170M,
210 UVC_MATRIX_COEFFICIENTS_SMPTE_240M,
211};
212
213/* ------------------------------------------------------------------------
214 * UVC structures
215 */
216
217/* All UVC descriptors have these 3 fields at the beginning */
218struct uvc_descriptor_header {
219 __u8 bLength;
220 __u8 bDescriptorType;
221 __u8 bDescriptorSubType;
222} __attribute__((packed));
223
224/* 3.7.2. Video Control Interface Header Descriptor */
225struct uvc_header_descriptor {
226 __u8 bLength;
227 __u8 bDescriptorType;
228 __u8 bDescriptorSubType;
229 __le16 bcdUVC;
230 __le16 wTotalLength;
231 __le32 dwClockFrequency;
232 __u8 bInCollection;
233 __u8 baInterfaceNr[];
234} __attribute__((__packed__));
235
236#define UVC_DT_HEADER_SIZE(n) (12+(n))
237
238#define UVC_HEADER_DESCRIPTOR(n) \
239 uvc_header_descriptor_##n
240
241#define DECLARE_UVC_HEADER_DESCRIPTOR(n) \
242struct UVC_HEADER_DESCRIPTOR(n) { \
243 __u8 bLength; \
244 __u8 bDescriptorType; \
245 __u8 bDescriptorSubType; \
246 __le16 bcdUVC; \
247 __le16 wTotalLength; \
248 __le32 dwClockFrequency; \
249 __u8 bInCollection; \
250 __u8 baInterfaceNr[n]; \
251} __attribute__ ((packed))
252
253/* 3.7.2.1. Input Terminal Descriptor */
254struct uvc_input_terminal_descriptor {
255 __u8 bLength;
256 __u8 bDescriptorType;
257 __u8 bDescriptorSubType;
258 __u8 bTerminalID;
259 __le16 wTerminalType;
260 __u8 bAssocTerminal;
261 __u8 iTerminal;
262} __attribute__((__packed__));
263
264#define UVC_DT_INPUT_TERMINAL_SIZE 8
265
266/* 3.7.2.2. Output Terminal Descriptor */
267struct uvc_output_terminal_descriptor {
268 __u8 bLength;
269 __u8 bDescriptorType;
270 __u8 bDescriptorSubType;
271 __u8 bTerminalID;
272 __le16 wTerminalType;
273 __u8 bAssocTerminal;
274 __u8 bSourceID;
275 __u8 iTerminal;
276} __attribute__((__packed__));
277
278#define UVC_DT_OUTPUT_TERMINAL_SIZE 9
279
280/* 3.7.2.3. Camera Terminal Descriptor */
281struct uvc_camera_terminal_descriptor {
282 __u8 bLength;
283 __u8 bDescriptorType;
284 __u8 bDescriptorSubType;
285 __u8 bTerminalID;
286 __le16 wTerminalType;
287 __u8 bAssocTerminal;
288 __u8 iTerminal;
289 __le16 wObjectiveFocalLengthMin;
290 __le16 wObjectiveFocalLengthMax;
291 __le16 wOcularFocalLength;
292 __u8 bControlSize;
293 __u8 bmControls[3];
294} __attribute__((__packed__));
295
296#define UVC_DT_CAMERA_TERMINAL_SIZE(n) (15+(n))
297
298/* 3.7.2.4. Selector Unit Descriptor */
299struct uvc_selector_unit_descriptor {
300 __u8 bLength;
301 __u8 bDescriptorType;
302 __u8 bDescriptorSubType;
303 __u8 bUnitID;
304 __u8 bNrInPins;
305 __u8 baSourceID[0];
306 __u8 iSelector;
307} __attribute__((__packed__));
308
309#define UVC_DT_SELECTOR_UNIT_SIZE(n) (6+(n))
310
311#define UVC_SELECTOR_UNIT_DESCRIPTOR(n) \
312 uvc_selector_unit_descriptor_##n
313
314#define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n) \
315struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) { \
316 __u8 bLength; \
317 __u8 bDescriptorType; \
318 __u8 bDescriptorSubType; \
319 __u8 bUnitID; \
320 __u8 bNrInPins; \
321 __u8 baSourceID[n]; \
322 __u8 iSelector; \
323} __attribute__ ((packed))
324
325/* 3.7.2.5. Processing Unit Descriptor */
326struct uvc_processing_unit_descriptor {
327 __u8 bLength;
328 __u8 bDescriptorType;
329 __u8 bDescriptorSubType;
330 __u8 bUnitID;
331 __u8 bSourceID;
332 __le16 wMaxMultiplier;
333 __u8 bControlSize;
334 __u8 bmControls[2];
335 __u8 iProcessing;
336 __u8 bmVideoStandards;
337} __attribute__((__packed__));
338
339#define UVC_DT_PROCESSING_UNIT_SIZE(n) (10+(n))
340
341/* 3.7.2.6. Extension Unit Descriptor */
342struct uvc_extension_unit_descriptor {
343 __u8 bLength;
344 __u8 bDescriptorType;
345 __u8 bDescriptorSubType;
346 __u8 bUnitID;
347 __u8 guidExtensionCode[16];
348 __u8 bNumControls;
349 __u8 bNrInPins;
350 __u8 baSourceID[0];
351 __u8 bControlSize;
352 __u8 bmControls[0];
353 __u8 iExtension;
354} __attribute__((__packed__));
355
356#define UVC_DT_EXTENSION_UNIT_SIZE(p, n) (24+(p)+(n))
357
358#define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
359 uvc_extension_unit_descriptor_##p_##n
360
361#define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
362struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) { \
363 __u8 bLength; \
364 __u8 bDescriptorType; \
365 __u8 bDescriptorSubType; \
366 __u8 bUnitID; \
367 __u8 guidExtensionCode[16]; \
368 __u8 bNumControls; \
369 __u8 bNrInPins; \
370 __u8 baSourceID[p]; \
371 __u8 bControlSize; \
372 __u8 bmControls[n]; \
373 __u8 iExtension; \
374} __attribute__ ((packed))
375
376/* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */
377struct uvc_control_endpoint_descriptor {
378 __u8 bLength;
379 __u8 bDescriptorType;
380 __u8 bDescriptorSubType;
381 __le16 wMaxTransferSize;
382} __attribute__((__packed__));
383
384#define UVC_DT_CONTROL_ENDPOINT_SIZE 5
385
386/* 3.9.2.1. Input Header Descriptor */
387struct uvc_input_header_descriptor {
388 __u8 bLength;
389 __u8 bDescriptorType;
390 __u8 bDescriptorSubType;
391 __u8 bNumFormats;
392 __le16 wTotalLength;
393 __u8 bEndpointAddress;
394 __u8 bmInfo;
395 __u8 bTerminalLink;
396 __u8 bStillCaptureMethod;
397 __u8 bTriggerSupport;
398 __u8 bTriggerUsage;
399 __u8 bControlSize;
400 __u8 bmaControls[];
401} __attribute__((__packed__));
402
403#define UVC_DT_INPUT_HEADER_SIZE(n, p) (13+(n*p))
404
405#define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
406 uvc_input_header_descriptor_##n_##p
407
408#define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
409struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) { \
410 __u8 bLength; \
411 __u8 bDescriptorType; \
412 __u8 bDescriptorSubType; \
413 __u8 bNumFormats; \
414 __le16 wTotalLength; \
415 __u8 bEndpointAddress; \
416 __u8 bmInfo; \
417 __u8 bTerminalLink; \
418 __u8 bStillCaptureMethod; \
419 __u8 bTriggerSupport; \
420 __u8 bTriggerUsage; \
421 __u8 bControlSize; \
422 __u8 bmaControls[p][n]; \
423} __attribute__ ((packed))
424
425/* 3.9.2.2. Output Header Descriptor */
426struct uvc_output_header_descriptor {
427 __u8 bLength;
428 __u8 bDescriptorType;
429 __u8 bDescriptorSubType;
430 __u8 bNumFormats;
431 __le16 wTotalLength;
432 __u8 bEndpointAddress;
433 __u8 bTerminalLink;
434 __u8 bControlSize;
435 __u8 bmaControls[];
436} __attribute__((__packed__));
437
438#define UVC_DT_OUTPUT_HEADER_SIZE(n, p) (9+(n*p))
439
440#define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
441 uvc_output_header_descriptor_##n_##p
442
443#define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
444struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) { \
445 __u8 bLength; \
446 __u8 bDescriptorType; \
447 __u8 bDescriptorSubType; \
448 __u8 bNumFormats; \
449 __le16 wTotalLength; \
450 __u8 bEndpointAddress; \
451 __u8 bTerminalLink; \
452 __u8 bControlSize; \
453 __u8 bmaControls[p][n]; \
454} __attribute__ ((packed))
455
456/* 3.9.2.6. Color matching descriptor */
457struct uvc_color_matching_descriptor {
458 __u8 bLength;
459 __u8 bDescriptorType;
460 __u8 bDescriptorSubType;
461 __u8 bColorPrimaries;
462 __u8 bTransferCharacteristics;
463 __u8 bMatrixCoefficients;
464} __attribute__((__packed__));
465
466#define UVC_DT_COLOR_MATCHING_SIZE 6
467
468/* 4.3.1.1. Video Probe and Commit Controls */
469struct uvc_streaming_control {
470 __u16 bmHint;
471 __u8 bFormatIndex;
472 __u8 bFrameIndex;
473 __u32 dwFrameInterval;
474 __u16 wKeyFrameRate;
475 __u16 wPFrameRate;
476 __u16 wCompQuality;
477 __u16 wCompWindowSize;
478 __u16 wDelay;
479 __u32 dwMaxVideoFrameSize;
480 __u32 dwMaxPayloadTransferSize;
481 __u32 dwClockFrequency;
482 __u8 bmFramingInfo;
483 __u8 bPreferedVersion;
484 __u8 bMinVersion;
485 __u8 bMaxVersion;
486} __attribute__((__packed__));
487
488/* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */
489struct uvc_format_uncompressed {
490 __u8 bLength;
491 __u8 bDescriptorType;
492 __u8 bDescriptorSubType;
493 __u8 bFormatIndex;
494 __u8 bNumFrameDescriptors;
495 __u8 guidFormat[16];
496 __u8 bBitsPerPixel;
497 __u8 bDefaultFrameIndex;
498 __u8 bAspectRatioX;
499 __u8 bAspectRatioY;
500 __u8 bmInterlaceFlags;
501 __u8 bCopyProtect;
502} __attribute__((__packed__));
503
504#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27
505
506/* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */
507struct uvc_frame_uncompressed {
508 __u8 bLength;
509 __u8 bDescriptorType;
510 __u8 bDescriptorSubType;
511 __u8 bFrameIndex;
512 __u8 bmCapabilities;
513 __le16 wWidth;
514 __le16 wHeight;
515 __le32 dwMinBitRate;
516 __le32 dwMaxBitRate;
517 __le32 dwMaxVideoFrameBufferSize;
518 __le32 dwDefaultFrameInterval;
519 __u8 bFrameIntervalType;
520 __le32 dwFrameInterval[];
521} __attribute__((__packed__));
522
523#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n) (26+4*(n))
524
525#define UVC_FRAME_UNCOMPRESSED(n) \
526 uvc_frame_uncompressed_##n
527
528#define DECLARE_UVC_FRAME_UNCOMPRESSED(n) \
529struct UVC_FRAME_UNCOMPRESSED(n) { \
530 __u8 bLength; \
531 __u8 bDescriptorType; \
532 __u8 bDescriptorSubType; \
533 __u8 bFrameIndex; \
534 __u8 bmCapabilities; \
535 __le16 wWidth; \
536 __le16 wHeight; \
537 __le32 dwMinBitRate; \
538 __le32 dwMaxBitRate; \
539 __le32 dwMaxVideoFrameBufferSize; \
540 __le32 dwDefaultFrameInterval; \
541 __u8 bFrameIntervalType; \
542 __le32 dwFrameInterval[n]; \
543} __attribute__ ((packed))
544
545/* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */
546struct uvc_format_mjpeg {
547 __u8 bLength;
548 __u8 bDescriptorType;
549 __u8 bDescriptorSubType;
550 __u8 bFormatIndex;
551 __u8 bNumFrameDescriptors;
552 __u8 bmFlags;
553 __u8 bDefaultFrameIndex;
554 __u8 bAspectRatioX;
555 __u8 bAspectRatioY;
556 __u8 bmInterlaceFlags;
557 __u8 bCopyProtect;
558} __attribute__((__packed__));
559
560#define UVC_DT_FORMAT_MJPEG_SIZE 11
561
562/* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */
563struct uvc_frame_mjpeg {
564 __u8 bLength;
565 __u8 bDescriptorType;
566 __u8 bDescriptorSubType;
567 __u8 bFrameIndex;
568 __u8 bmCapabilities;
569 __le16 wWidth;
570 __le16 wHeight;
571 __le32 dwMinBitRate;
572 __le32 dwMaxBitRate;
573 __le32 dwMaxVideoFrameBufferSize;
574 __le32 dwDefaultFrameInterval;
575 __u8 bFrameIntervalType;
576 __le32 dwFrameInterval[];
577} __attribute__((__packed__));
578
579#define UVC_DT_FRAME_MJPEG_SIZE(n) (26+4*(n))
580
581#define UVC_FRAME_MJPEG(n) \
582 uvc_frame_mjpeg_##n
583
584#define DECLARE_UVC_FRAME_MJPEG(n) \
585struct UVC_FRAME_MJPEG(n) { \
586 __u8 bLength; \
587 __u8 bDescriptorType; \
588 __u8 bDescriptorSubType; \
589 __u8 bFrameIndex; \
590 __u8 bmCapabilities; \
591 __le16 wWidth; \
592 __le16 wHeight; \
593 __le32 dwMinBitRate; \
594 __le32 dwMaxBitRate; \
595 __le32 dwMaxVideoFrameBufferSize; \
596 __le32 dwDefaultFrameInterval; \
597 __u8 bFrameIntervalType; \
598 __le32 dwFrameInterval[n]; \
599} __attribute__ ((packed))
600
601/* Frame Based Payload - 3.1.1. Frame Based Video Format Descriptor */
602struct uvc_format_framebased {
603 __u8 bLength;
604 __u8 bDescriptorType;
605 __u8 bDescriptorSubType;
606 __u8 bFormatIndex;
607 __u8 bNumFrameDescriptors;
608 __u8 guidFormat[16];
609 __u8 bBitsPerPixel;
610 __u8 bDefaultFrameIndex;
611 __u8 bAspectRatioX;
612 __u8 bAspectRatioY;
613 __u8 bmInterfaceFlags;
614 __u8 bCopyProtect;
615 __u8 bVariableSize;
616} __attribute__((__packed__));
617
618#define UVC_DT_FORMAT_FRAMEBASED_SIZE 28
619
620/* Frame Based Payload - 3.1.2. Frame Based Video Frame Descriptor */
621struct uvc_frame_framebased {
622 __u8 bLength;
623 __u8 bDescriptorType;
624 __u8 bDescriptorSubType;
625 __u8 bFrameIndex;
626 __u8 bmCapabilities;
627 __u16 wWidth;
628 __u16 wHeight;
629 __u32 dwMinBitRate;
630 __u32 dwMaxBitRate;
631 __u32 dwDefaultFrameInterval;
632 __u8 bFrameIntervalType;
633 __u32 dwBytesPerLine;
634 __u32 dwFrameInterval[];
635} __attribute__((__packed__));
636
637#define UVC_DT_FRAME_FRAMEBASED_SIZE(n) (26+4*(n))
638
639#define UVC_FRAME_FRAMEBASED(n) \
640 uvc_frame_framebased_##n
641
642#define DECLARE_UVC_FRAME_FRAMEBASED(n) \
643struct UVC_FRAME_FRAMEBASED(n) { \
644 __u8 bLength; \
645 __u8 bDescriptorType; \
646 __u8 bDescriptorSubType; \
647 __u8 bFrameIndex; \
648 __u8 bmCapabilities; \
649 __u16 wWidth; \
650 __u16 wHeight; \
651 __u32 dwMinBitRate; \
652 __u32 dwMaxBitRate; \
653 __u32 dwDefaultFrameInterval; \
654 __u8 bFrameIntervalType; \
655 __u32 dwBytesPerLine; \
656 __u32 dwFrameInterval[n]; \
657} __attribute__ ((packed))
658
659#endif /* __LINUX_USB_VIDEO_H */
660