/* TODO: Put the most frequently accessed fields at the beginning of
* structures to maximize cache efficiency.
*/
-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;
-};
-
struct uvc_control_info {
struct list_head list;
struct list_head mappings;
#define UVC_INTF_VIDEO_STREAMING 1
static struct usb_interface_assoc_descriptor uvc_iad __initdata = {
- .bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
+ .bLength = sizeof(uvc_iad),
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = 0,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_VIDEO,
- .bFunctionSubClass = 0x03,
+ .bFunctionSubClass = UVC_SC_VIDEO_INTERFACE_COLLECTION,
.bFunctionProtocol = 0x00,
.iFunction = 0,
};
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 0x01,
+ .bInterfaceSubClass = UVC_SC_VIDEOCONTROL,
.bInterfaceProtocol = 0x00,
.iInterface = 0,
};
.bAlternateSetting = 0,
.bNumEndpoints = 0,
.bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 0x02,
+ .bInterfaceSubClass = UVC_SC_VIDEOSTREAMING,
.bInterfaceProtocol = 0x00,
.iInterface = 0,
};
.bAlternateSetting = 1,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 0x02,
+ .bInterfaceSubClass = UVC_SC_VIDEOSTREAMING,
.bInterfaceProtocol = 0x00,
.iInterface = 0,
};
/* Validate the descriptors. */
if (control == NULL || control[0] == NULL ||
- control[0]->bDescriptorSubType != UVC_DT_HEADER)
+ control[0]->bDescriptorSubType != UVC_VC_HEADER)
goto error;
if (fs_streaming == NULL || fs_streaming[0] == NULL ||
- fs_streaming[0]->bDescriptorSubType != UVC_DT_INPUT_HEADER)
+ fs_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER)
goto error;
if (hs_streaming == NULL || hs_streaming[0] == NULL ||
- hs_streaming[0]->bDescriptorSubType != UVC_DT_INPUT_HEADER)
+ hs_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER)
goto error;
uvc->desc.control = control;
#define _F_UVC_H_
#include <linux/usb/composite.h>
-
-#define USB_CLASS_VIDEO_CONTROL 1
-#define USB_CLASS_VIDEO_STREAMING 2
-
-struct uvc_descriptor_header {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubType;
-} __attribute__ ((packed));
-
-struct uvc_header_descriptor {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubType;
- __u16 bcdUVC;
- __u16 wTotalLength;
- __u32 dwClockFrequency;
- __u8 bInCollection;
- __u8 baInterfaceNr[];
-} __attribute__((__packed__));
-
-#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))
-
-struct uvc_input_terminal_descriptor {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubType;
- __u8 bTerminalID;
- __u16 wTerminalType;
- __u8 bAssocTerminal;
- __u8 iTerminal;
-} __attribute__((__packed__));
-
-struct uvc_output_terminal_descriptor {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubType;
- __u8 bTerminalID;
- __u16 wTerminalType;
- __u8 bAssocTerminal;
- __u8 bSourceID;
- __u8 iTerminal;
-} __attribute__((__packed__));
-
-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__));
-
-struct uvc_selector_unit_descriptor {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubType;
- __u8 bUnitID;
- __u8 bNrInPins;
- __u8 baSourceID[0];
- __u8 iSelector;
-} __attribute__((__packed__));
-
-#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))
-
-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__));
-
-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_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))
-
-struct uvc_control_endpoint_descriptor {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubType;
- __u16 wMaxTransferSize;
-} __attribute__((__packed__));
-
-#define UVC_DT_HEADER 1
-#define UVC_DT_INPUT_TERMINAL 2
-#define UVC_DT_OUTPUT_TERMINAL 3
-#define UVC_DT_SELECTOR_UNIT 4
-#define UVC_DT_PROCESSING_UNIT 5
-#define UVC_DT_EXTENSION_UNIT 6
-
-#define UVC_DT_HEADER_SIZE(n) (12+(n))
-#define UVC_DT_INPUT_TERMINAL_SIZE 8
-#define UVC_DT_OUTPUT_TERMINAL_SIZE 9
-#define UVC_DT_CAMERA_TERMINAL_SIZE(n) (15+(n))
-#define UVC_DT_SELECTOR_UNIT_SIZE(n) (6+(n))
-#define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(n))
-#define UVC_DT_EXTENSION_UNIT_SIZE(p,n) (24+(p)+(n))
-#define UVC_DT_CONTROL_ENDPOINT_SIZE 5
-
-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_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))
-
-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_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))
-
-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__));
-
-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_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))
-
-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__));
-
-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_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))
-
-struct uvc_color_matching_descriptor {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubType;
- __u8 bColorPrimaries;
- __u8 bTransferCharacteristics;
- __u8 bMatrixCoefficients;
-} __attribute__((__packed__));
-
-#define UVC_DT_INPUT_HEADER 1
-#define UVC_DT_OUTPUT_HEADER 2
-#define UVC_DT_FORMAT_UNCOMPRESSED 4
-#define UVC_DT_FRAME_UNCOMPRESSED 5
-#define UVC_DT_FORMAT_MJPEG 6
-#define UVC_DT_FRAME_MJPEG 7
-#define UVC_DT_COLOR_MATCHING 13
-
-#define UVC_DT_INPUT_HEADER_SIZE(n, p) (13+(n*p))
-#define UVC_DT_OUTPUT_HEADER_SIZE(n, p) (9+(n*p))
-#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27
-#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n) (26+4*(n))
-#define UVC_DT_FORMAT_MJPEG_SIZE 11
-#define UVC_DT_FRAME_MJPEG_SIZE(n) (26+4*(n))
-#define UVC_DT_COLOR_MATCHING_SIZE 6
+#include <linux/usb/video.h>
extern int uvc_bind_config(struct usb_configuration *c,
const struct uvc_descriptor_header * const *control,
#define UVC_INTF_CONTROL 0
#define UVC_INTF_STREAMING 1
-/* ------------------------------------------------------------------------
- * UVC constants & structures
- */
-
-/* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
-#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)
-
-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__));
-
/* ------------------------------------------------------------------------
* Debugging, printing and logging
*/
#define UVC_MAX_REQUEST_SIZE 64
#define UVC_MAX_EVENTS 4
-#define USB_DT_INTERFACE_ASSOCIATION_SIZE 8
-#define USB_CLASS_MISC 0xef
-
/* ------------------------------------------------------------------------
* Structures
*/
static const struct UVC_HEADER_DESCRIPTOR(1) uvc_control_header = {
.bLength = UVC_DT_HEADER_SIZE(1),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_HEADER,
+ .bDescriptorSubType = UVC_VC_HEADER,
.bcdUVC = cpu_to_le16(0x0100),
.wTotalLength = 0, /* dynamic */
.dwClockFrequency = cpu_to_le32(48000000),
static const struct uvc_camera_terminal_descriptor uvc_camera_terminal = {
.bLength = UVC_DT_CAMERA_TERMINAL_SIZE(3),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_INPUT_TERMINAL,
+ .bDescriptorSubType = UVC_VC_INPUT_TERMINAL,
.bTerminalID = 1,
.wTerminalType = cpu_to_le16(0x0201),
.bAssocTerminal = 0,
static const struct uvc_processing_unit_descriptor uvc_processing = {
.bLength = UVC_DT_PROCESSING_UNIT_SIZE(2),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_PROCESSING_UNIT,
+ .bDescriptorSubType = UVC_VC_PROCESSING_UNIT,
.bUnitID = 2,
.bSourceID = 1,
.wMaxMultiplier = cpu_to_le16(16*1024),
static const struct uvc_output_terminal_descriptor uvc_output_terminal = {
.bLength = UVC_DT_OUTPUT_TERMINAL_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_OUTPUT_TERMINAL,
+ .bDescriptorSubType = UVC_VC_OUTPUT_TERMINAL,
.bTerminalID = 3,
.wTerminalType = cpu_to_le16(0x0101),
.bAssocTerminal = 0,
static const struct UVC_INPUT_HEADER_DESCRIPTOR(1, 2) uvc_input_header = {
.bLength = UVC_DT_INPUT_HEADER_SIZE(1, 2),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_INPUT_HEADER,
+ .bDescriptorSubType = UVC_VS_INPUT_HEADER,
.bNumFormats = 2,
.wTotalLength = 0, /* dynamic */
.bEndpointAddress = 0, /* dynamic */
static const struct uvc_format_uncompressed uvc_format_yuv = {
.bLength = UVC_DT_FORMAT_UNCOMPRESSED_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_FORMAT_UNCOMPRESSED,
+ .bDescriptorSubType = UVC_VS_FORMAT_UNCOMPRESSED,
.bFormatIndex = 1,
.bNumFrameDescriptors = 2,
.guidFormat =
static const struct UVC_FRAME_UNCOMPRESSED(3) uvc_frame_yuv_360p = {
.bLength = UVC_DT_FRAME_UNCOMPRESSED_SIZE(3),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_FRAME_UNCOMPRESSED,
+ .bDescriptorSubType = UVC_VS_FRAME_UNCOMPRESSED,
.bFrameIndex = 1,
.bmCapabilities = 0,
.wWidth = cpu_to_le16(640),
static const struct UVC_FRAME_UNCOMPRESSED(1) uvc_frame_yuv_720p = {
.bLength = UVC_DT_FRAME_UNCOMPRESSED_SIZE(1),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_FRAME_UNCOMPRESSED,
+ .bDescriptorSubType = UVC_VS_FRAME_UNCOMPRESSED,
.bFrameIndex = 2,
.bmCapabilities = 0,
.wWidth = cpu_to_le16(1280),
static const struct uvc_format_mjpeg uvc_format_mjpg = {
.bLength = UVC_DT_FORMAT_MJPEG_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_FORMAT_MJPEG,
+ .bDescriptorSubType = UVC_VS_FORMAT_MJPEG,
.bFormatIndex = 2,
.bNumFrameDescriptors = 2,
.bmFlags = 0,
static const struct UVC_FRAME_MJPEG(3) uvc_frame_mjpg_360p = {
.bLength = UVC_DT_FRAME_MJPEG_SIZE(3),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_FRAME_MJPEG,
+ .bDescriptorSubType = UVC_VS_FRAME_MJPEG,
.bFrameIndex = 1,
.bmCapabilities = 0,
.wWidth = cpu_to_le16(640),
static const struct UVC_FRAME_MJPEG(1) uvc_frame_mjpg_720p = {
.bLength = UVC_DT_FRAME_MJPEG_SIZE(1),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_FRAME_MJPEG,
+ .bDescriptorSubType = UVC_VS_FRAME_MJPEG,
.bFrameIndex = 2,
.bmCapabilities = 0,
.wWidth = cpu_to_le16(1280),
static const struct uvc_color_matching_descriptor uvc_color_matching = {
.bLength = UVC_DT_COLOR_MATCHING_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = UVC_DT_COLOR_MATCHING,
+ .bDescriptorSubType = UVC_VS_COLORFORMAT,
.bColorPrimaries = 1,
.bTransferCharacteristics = 1,
.bMatrixCoefficients = 4,
#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_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 */
projects / linux-beck.git / commitdiff