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 */
183enum 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
192enum 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
203enum 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 */
217struct 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 */
224struct 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)		\
241struct 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 */
253struct 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 */
266struct 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 */
280struct 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 */
298struct 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)	\
314struct 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 */
325struct 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 */
341struct 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)	\
361struct 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 */
376struct 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 */
386struct 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)	\
408struct 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 */
425struct 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)	\
443struct 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 */
456struct 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 */
468struct 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 */
488struct 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 */
506struct 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)		\
528struct 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 */
545struct 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 */
562struct 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)			\
584struct 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