linux/include/uapi/linux/usb/video.h at master · lircs/linux

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* USB Video Class definitions.

* This file holds USB constants and structures defined by the USB Device

* Class Definition for Video Devices. Unless otherwise stated, comments

* below reference relevant sections of the USB Video Class 1.1 specification

* available at

* http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip

#ifndef __LINUX_USB_VIDEO_H

#define __LINUX_USB_VIDEO_H

#include <linux/types.h>

/* --------------------------------------------------------------------------

* UVC constants

/* A.2. Video Interface Subclass Codes */

#define UVC_SC_UNDEFINED 0x00

#define UVC_SC_VIDEOCONTROL 0x01

#define UVC_SC_VIDEOSTREAMING 0x02

#define UVC_SC_VIDEO_INTERFACE_COLLECTION 0x03

/* A.3. Video Interface Protocol Codes */

#define UVC_PC_PROTOCOL_UNDEFINED 0x00

#define UVC_PC_PROTOCOL_15 0x01

/* A.5. Video Class-Specific VC Interface Descriptor Subtypes */

#define UVC_VC_DESCRIPTOR_UNDEFINED 0x00

#define UVC_VC_HEADER 0x01

#define UVC_VC_INPUT_TERMINAL 0x02

#define UVC_VC_OUTPUT_TERMINAL 0x03

#define UVC_VC_SELECTOR_UNIT 0x04

#define UVC_VC_PROCESSING_UNIT 0x05

#define UVC_VC_EXTENSION_UNIT 0x06

/* A.6. Video Class-Specific VS Interface Descriptor Subtypes */

#define UVC_VS_UNDEFINED 0x00

#define UVC_VS_INPUT_HEADER 0x01

#define UVC_VS_OUTPUT_HEADER 0x02

#define UVC_VS_STILL_IMAGE_FRAME 0x03

#define UVC_VS_FORMAT_UNCOMPRESSED 0x04

#define UVC_VS_FRAME_UNCOMPRESSED 0x05

#define UVC_VS_FORMAT_MJPEG 0x06

#define UVC_VS_FRAME_MJPEG 0x07

#define UVC_VS_FORMAT_MPEG2TS 0x0a

#define UVC_VS_FORMAT_DV 0x0c

#define UVC_VS_COLORFORMAT 0x0d

#define UVC_VS_FORMAT_FRAME_BASED 0x10

#define UVC_VS_FRAME_FRAME_BASED 0x11

#define UVC_VS_FORMAT_STREAM_BASED 0x12

/* A.7. Video Class-Specific Endpoint Descriptor Subtypes */

#define UVC_EP_UNDEFINED 0x00

#define UVC_EP_GENERAL 0x01

#define UVC_EP_ENDPOINT 0x02

#define UVC_EP_INTERRUPT 0x03

/* A.8. Video Class-Specific Request Codes */

#define UVC_RC_UNDEFINED 0x00

#define UVC_SET_CUR 0x01

#define UVC_GET_CUR 0x81

#define UVC_GET_MIN 0x82

#define UVC_GET_MAX 0x83

#define UVC_GET_RES 0x84

#define UVC_GET_LEN 0x85

#define UVC_GET_INFO 0x86

#define UVC_GET_DEF 0x87

/* A.9.1. VideoControl Interface Control Selectors */

#define UVC_VC_CONTROL_UNDEFINED 0x00

#define UVC_VC_VIDEO_POWER_MODE_CONTROL 0x01

#define UVC_VC_REQUEST_ERROR_CODE_CONTROL 0x02

/* A.9.2. Terminal Control Selectors */

#define UVC_TE_CONTROL_UNDEFINED 0x00

/* A.9.3. Selector Unit Control Selectors */

#define UVC_SU_CONTROL_UNDEFINED 0x00

#define UVC_SU_INPUT_SELECT_CONTROL 0x01

/* A.9.4. Camera Terminal Control Selectors */

#define UVC_CT_CONTROL_UNDEFINED 0x00

#define UVC_CT_SCANNING_MODE_CONTROL 0x01

#define UVC_CT_AE_MODE_CONTROL 0x02

#define UVC_CT_AE_PRIORITY_CONTROL 0x03

#define UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL 0x04

#define UVC_CT_EXPOSURE_TIME_RELATIVE_CONTROL 0x05

#define UVC_CT_FOCUS_ABSOLUTE_CONTROL 0x06

#define UVC_CT_FOCUS_RELATIVE_CONTROL 0x07

#define UVC_CT_FOCUS_AUTO_CONTROL 0x08

#define UVC_CT_IRIS_ABSOLUTE_CONTROL 0x09

#define UVC_CT_IRIS_RELATIVE_CONTROL 0x0a

#define UVC_CT_ZOOM_ABSOLUTE_CONTROL 0x0b

#define UVC_CT_ZOOM_RELATIVE_CONTROL 0x0c

#define UVC_CT_PANTILT_ABSOLUTE_CONTROL 0x0d

#define UVC_CT_PANTILT_RELATIVE_CONTROL 0x0e

#define UVC_CT_ROLL_ABSOLUTE_CONTROL 0x0f

#define UVC_CT_ROLL_RELATIVE_CONTROL 0x10

#define UVC_CT_PRIVACY_CONTROL 0x11

/* A.9.5. Processing Unit Control Selectors */

#define UVC_PU_CONTROL_UNDEFINED 0x00

#define UVC_PU_BACKLIGHT_COMPENSATION_CONTROL 0x01

#define UVC_PU_BRIGHTNESS_CONTROL 0x02

#define UVC_PU_CONTRAST_CONTROL 0x03

#define UVC_PU_GAIN_CONTROL 0x04

#define UVC_PU_POWER_LINE_FREQUENCY_CONTROL 0x05

#define UVC_PU_HUE_CONTROL 0x06

#define UVC_PU_SATURATION_CONTROL 0x07

#define UVC_PU_SHARPNESS_CONTROL 0x08

#define UVC_PU_GAMMA_CONTROL 0x09

#define UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a

#define UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b

#define UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL 0x0c

#define UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d

#define UVC_PU_DIGITAL_MULTIPLIER_CONTROL 0x0e

#define UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL 0x0f

#define UVC_PU_HUE_AUTO_CONTROL 0x10

#define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11

#define UVC_PU_ANALOG_LOCK_STATUS_CONTROL 0x12

/* A.9.7. VideoStreaming Interface Control Selectors */

#define UVC_VS_CONTROL_UNDEFINED 0x00

#define UVC_VS_PROBE_CONTROL 0x01

#define UVC_VS_COMMIT_CONTROL 0x02

#define UVC_VS_STILL_PROBE_CONTROL 0x03

#define UVC_VS_STILL_COMMIT_CONTROL 0x04

#define UVC_VS_STILL_IMAGE_TRIGGER_CONTROL 0x05

#define UVC_VS_STREAM_ERROR_CODE_CONTROL 0x06

#define UVC_VS_GENERATE_KEY_FRAME_CONTROL 0x07

#define UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL 0x08

#define UVC_VS_SYNC_DELAY_CONTROL 0x09

/* B.1. USB Terminal Types */

#define UVC_TT_VENDOR_SPECIFIC 0x0100

#define UVC_TT_STREAMING 0x0101

/* B.2. Input Terminal Types */

#define UVC_ITT_VENDOR_SPECIFIC 0x0200

#define UVC_ITT_CAMERA 0x0201

#define UVC_ITT_MEDIA_TRANSPORT_INPUT 0x0202

/* B.3. Output Terminal Types */

#define UVC_OTT_VENDOR_SPECIFIC 0x0300

#define UVC_OTT_DISPLAY 0x0301

#define UVC_OTT_MEDIA_TRANSPORT_OUTPUT 0x0302

/* B.4. External Terminal Types */

#define UVC_EXTERNAL_VENDOR_SPECIFIC 0x0400

#define UVC_COMPOSITE_CONNECTOR 0x0401

#define UVC_SVIDEO_CONNECTOR 0x0402

#define UVC_COMPONENT_CONNECTOR 0x0403

/* 2.4.2.2. Status Packet Type */

#define UVC_STATUS_TYPE_CONTROL 1

#define UVC_STATUS_TYPE_STREAMING 2

/* 2.4.3.3. Payload Header Information */

#define UVC_STREAM_EOH (1 << 7)

#define UVC_STREAM_ERR (1 << 6)

#define UVC_STREAM_STI (1 << 5)

#define UVC_STREAM_RES (1 << 4)

#define UVC_STREAM_SCR (1 << 3)

#define UVC_STREAM_PTS (1 << 2)

#define UVC_STREAM_EOF (1 << 1)

#define UVC_STREAM_FID (1 << 0)

/* 4.1.2. Control Capabilities */

#define UVC_CONTROL_CAP_GET (1 << 0)

#define UVC_CONTROL_CAP_SET (1 << 1)

#define UVC_CONTROL_CAP_DISABLED (1 << 2)

#define UVC_CONTROL_CAP_AUTOUPDATE (1 << 3)

#define UVC_CONTROL_CAP_ASYNCHRONOUS (1 << 4)

/* ------------------------------------------------------------------------

* UVC structures

/* All UVC descriptors have these 3 fields at the beginning */

struct uvc_descriptor_header {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

} __attribute__((packed));

/* 3.7.2. Video Control Interface Header Descriptor */

struct uvc_header_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u16 bcdUVC;

__u16 wTotalLength;

__u32 dwClockFrequency;

__u8 bInCollection;

__u8 baInterfaceNr[];

} __attribute__((__packed__));

#define UVC_DT_HEADER_SIZE(n) (12+(n))

#define UVC_HEADER_DESCRIPTOR(n) \

uvc_header_descriptor_##n

#define DECLARE_UVC_HEADER_DESCRIPTOR(n) \

struct UVC_HEADER_DESCRIPTOR(n) { \

__u8 bLength; \

__u8 bDescriptorType; \

__u8 bDescriptorSubType; \

__u16 bcdUVC; \

__u16 wTotalLength; \

__u32 dwClockFrequency; \

__u8 bInCollection; \

__u8 baInterfaceNr[n]; \

} __attribute__ ((packed))

/* 3.7.2.1. Input Terminal Descriptor */

struct uvc_input_terminal_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bTerminalID;

__u16 wTerminalType;

__u8 bAssocTerminal;

__u8 iTerminal;

} __attribute__((__packed__));

#define UVC_DT_INPUT_TERMINAL_SIZE 8

/* 3.7.2.2. Output Terminal Descriptor */

struct uvc_output_terminal_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bTerminalID;

__u16 wTerminalType;

__u8 bAssocTerminal;

__u8 bSourceID;

__u8 iTerminal;

} __attribute__((__packed__));

#define UVC_DT_OUTPUT_TERMINAL_SIZE 9

/* 3.7.2.3. Camera Terminal Descriptor */

struct uvc_camera_terminal_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bTerminalID;

__u16 wTerminalType;

__u8 bAssocTerminal;

__u8 iTerminal;

__u16 wObjectiveFocalLengthMin;

__u16 wObjectiveFocalLengthMax;

__u16 wOcularFocalLength;

__u8 bControlSize;

__u8 bmControls[3];

} __attribute__((__packed__));

#define UVC_DT_CAMERA_TERMINAL_SIZE(n) (15+(n))

/* 3.7.2.4. Selector Unit Descriptor */

struct uvc_selector_unit_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bUnitID;

__u8 bNrInPins;

__u8 baSourceID[0];

__u8 iSelector;

} __attribute__((__packed__));

#define UVC_DT_SELECTOR_UNIT_SIZE(n) (6+(n))

#define UVC_SELECTOR_UNIT_DESCRIPTOR(n) \

uvc_selector_unit_descriptor_##n

#define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n) \

struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) { \

__u8 bLength; \

__u8 bDescriptorType; \

__u8 bDescriptorSubType; \

__u8 bUnitID; \

__u8 bNrInPins; \

__u8 baSourceID[n]; \

__u8 iSelector; \

} __attribute__ ((packed))

/* 3.7.2.5. Processing Unit Descriptor */

struct uvc_processing_unit_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bUnitID;

__u8 bSourceID;

__u16 wMaxMultiplier;

__u8 bControlSize;

__u8 bmControls[2];

__u8 iProcessing;

} __attribute__((__packed__));

#define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(n))

/* 3.7.2.6. Extension Unit Descriptor */

struct uvc_extension_unit_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bUnitID;

__u8 guidExtensionCode[16];

__u8 bNumControls;

__u8 bNrInPins;

__u8 baSourceID[0];

__u8 bControlSize;

__u8 bmControls[0];

__u8 iExtension;

} __attribute__((__packed__));

#define UVC_DT_EXTENSION_UNIT_SIZE(p, n) (24+(p)+(n))

#define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \

uvc_extension_unit_descriptor_##p_##n

#define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \

struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) { \

__u8 bLength; \

__u8 bDescriptorType; \

__u8 bDescriptorSubType; \

__u8 bUnitID; \

__u8 guidExtensionCode[16]; \

__u8 bNumControls; \

__u8 bNrInPins; \

__u8 baSourceID[p]; \

__u8 bControlSize; \

__u8 bmControls[n]; \

__u8 iExtension; \

} __attribute__ ((packed))

/* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */

struct uvc_control_endpoint_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u16 wMaxTransferSize;

} __attribute__((__packed__));

#define UVC_DT_CONTROL_ENDPOINT_SIZE 5

/* 3.9.2.1. Input Header Descriptor */

struct uvc_input_header_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bNumFormats;

__u16 wTotalLength;

__u8 bEndpointAddress;

__u8 bmInfo;

__u8 bTerminalLink;

__u8 bStillCaptureMethod;

__u8 bTriggerSupport;

__u8 bTriggerUsage;

__u8 bControlSize;

__u8 bmaControls[];

} __attribute__((__packed__));

#define UVC_DT_INPUT_HEADER_SIZE(n, p) (13+(n*p))

#define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \

uvc_input_header_descriptor_##n_##p

#define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p) \

struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) { \

__u8 bLength; \

__u8 bDescriptorType; \

__u8 bDescriptorSubType; \

__u8 bNumFormats; \

__u16 wTotalLength; \

__u8 bEndpointAddress; \

__u8 bmInfo; \

__u8 bTerminalLink; \

__u8 bStillCaptureMethod; \

__u8 bTriggerSupport; \

__u8 bTriggerUsage; \

__u8 bControlSize; \

__u8 bmaControls[p][n]; \

} __attribute__ ((packed))

/* 3.9.2.2. Output Header Descriptor */

struct uvc_output_header_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bNumFormats;

__u16 wTotalLength;

__u8 bEndpointAddress;

__u8 bTerminalLink;

__u8 bControlSize;

__u8 bmaControls[];

} __attribute__((__packed__));

#define UVC_DT_OUTPUT_HEADER_SIZE(n, p) (9+(n*p))

#define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \

uvc_output_header_descriptor_##n_##p

#define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \

struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) { \

__u8 bLength; \

__u8 bDescriptorType; \

__u8 bDescriptorSubType; \

__u8 bNumFormats; \

__u16 wTotalLength; \

__u8 bEndpointAddress; \

__u8 bTerminalLink; \

__u8 bControlSize; \

__u8 bmaControls[p][n]; \

} __attribute__ ((packed))

/* 3.9.2.6. Color matching descriptor */

struct uvc_color_matching_descriptor {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bColorPrimaries;

__u8 bTransferCharacteristics;

__u8 bMatrixCoefficients;

} __attribute__((__packed__));

#define UVC_DT_COLOR_MATCHING_SIZE 6

/* 4.3.1.1. Video Probe and Commit Controls */

struct uvc_streaming_control {

__u16 bmHint;

__u8 bFormatIndex;

__u8 bFrameIndex;

__u32 dwFrameInterval;

__u16 wKeyFrameRate;

__u16 wPFrameRate;

__u16 wCompQuality;

__u16 wCompWindowSize;

__u16 wDelay;

__u32 dwMaxVideoFrameSize;

__u32 dwMaxPayloadTransferSize;

__u32 dwClockFrequency;

__u8 bmFramingInfo;

__u8 bPreferedVersion;

__u8 bMinVersion;

__u8 bMaxVersion;

} __attribute__((__packed__));

/* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */

struct uvc_format_uncompressed {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bFormatIndex;

__u8 bNumFrameDescriptors;

__u8 guidFormat[16];

__u8 bBitsPerPixel;

__u8 bDefaultFrameIndex;

__u8 bAspectRatioX;

__u8 bAspectRatioY;

__u8 bmInterfaceFlags;

__u8 bCopyProtect;

} __attribute__((__packed__));

#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27

/* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */

struct uvc_frame_uncompressed {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bFrameIndex;

__u8 bmCapabilities;

__u16 wWidth;

__u16 wHeight;

__u32 dwMinBitRate;

__u32 dwMaxBitRate;

__u32 dwMaxVideoFrameBufferSize;

__u32 dwDefaultFrameInterval;

__u8 bFrameIntervalType;

__u32 dwFrameInterval[];

} __attribute__((__packed__));

#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n) (26+4*(n))

#define UVC_FRAME_UNCOMPRESSED(n) \

uvc_frame_uncompressed_##n

#define DECLARE_UVC_FRAME_UNCOMPRESSED(n) \

struct UVC_FRAME_UNCOMPRESSED(n) { \

__u8 bLength; \

__u8 bDescriptorType; \

__u8 bDescriptorSubType; \

__u8 bFrameIndex; \

__u8 bmCapabilities; \

__u16 wWidth; \

__u16 wHeight; \

__u32 dwMinBitRate; \

__u32 dwMaxBitRate; \

__u32 dwMaxVideoFrameBufferSize; \

__u32 dwDefaultFrameInterval; \

__u8 bFrameIntervalType; \

__u32 dwFrameInterval[n]; \

} __attribute__ ((packed))

/* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */

struct uvc_format_mjpeg {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bFormatIndex;

__u8 bNumFrameDescriptors;

__u8 bmFlags;

__u8 bDefaultFrameIndex;

__u8 bAspectRatioX;

__u8 bAspectRatioY;

__u8 bmInterfaceFlags;

__u8 bCopyProtect;

} __attribute__((__packed__));

#define UVC_DT_FORMAT_MJPEG_SIZE 11

/* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */

struct uvc_frame_mjpeg {

__u8 bLength;

__u8 bDescriptorType;

__u8 bDescriptorSubType;

__u8 bFrameIndex;

__u8 bmCapabilities;

__u16 wWidth;

__u16 wHeight;

__u32 dwMinBitRate;

__u32 dwMaxBitRate;

__u32 dwMaxVideoFrameBufferSize;

__u32 dwDefaultFrameInterval;

__u8 bFrameIntervalType;

__u32 dwFrameInterval[];

} __attribute__((__packed__));

#define UVC_DT_FRAME_MJPEG_SIZE(n) (26+4*(n))

#define UVC_FRAME_MJPEG(n) \

uvc_frame_mjpeg_##n

#define DECLARE_UVC_FRAME_MJPEG(n) \

struct UVC_FRAME_MJPEG(n) { \

__u8 bLength; \

__u8 bDescriptorType; \

__u8 bDescriptorSubType; \

__u8 bFrameIndex; \

__u8 bmCapabilities; \

__u16 wWidth; \

__u16 wHeight; \

__u32 dwMinBitRate; \

__u32 dwMaxBitRate; \

__u32 dwMaxVideoFrameBufferSize; \

__u32 dwDefaultFrameInterval; \

__u8 bFrameIntervalType; \

__u32 dwFrameInterval[n]; \

} __attribute__ ((packed))

#endif /* __LINUX_USB_VIDEO_H */

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