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Commit e61a2a71 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Greg Kroah-Hartman
Browse files

greybus: Add camera protocol definition 



Define the camera data protocol ID and all the protocol operations data
structures.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent 8e3fba55

drivers/staging/greybus/greybus_manifest.h

+2 −1
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ enum greybus_protocol { 
	/* 0x0a is unused */

	GREYBUS_PROTOCOL_SPI		= 0x0b,

	GREYBUS_PROTOCOL_DISPLAY	= 0x0c,

	GREYBUS_PROTOCOL_CAMERA		= 0x0d,

	GREYBUS_PROTOCOL_CAMERA_MGMT	= 0x0d,

	GREYBUS_PROTOCOL_SENSOR		= 0x0e,

	GREYBUS_PROTOCOL_LIGHTS		= 0x0f,

	GREYBUS_PROTOCOL_VIBRATOR	= 0x10,
@@ -44,6 +44,7 @@ enum greybus_protocol { 
	GREYBUS_PROTOCOL_AUDIO_DATA	= 0x13,

	GREYBUS_PROTOCOL_SVC            = 0x14,

	GREYBUS_PROTOCOL_FIRMWARE	= 0x15,

	GREYBUS_PROTOCOL_CAMERA_DATA	= 0x16,

		/* ... */

	GREYBUS_PROTOCOL_RAW		= 0xfe,

	GREYBUS_PROTOCOL_VENDOR		= 0xff,

drivers/staging/greybus/greybus_protocols.h

+71 −0
Original line number Diff line number Diff line
@@ -1100,6 +1100,77 @@ struct gb_sdio_event_request { 
#define GB_SDIO_WP		0x04

} __packed;



/* Camera */



#define GB_CAMERA_VERSION_MAJOR			0x00

#define GB_CAMERA_VERSION_MINOR			0x01



/* Greybus Camera request types */

#define GB_CAMERA_TYPE_CAPABILITIES		0x02

#define GB_CAMERA_TYPE_CONFIGURE_STREAMS	0x03

#define GB_CAMERA_TYPE_CAPTURE			0x04

#define GB_CAMERA_TYPE_FLUSH			0x05

#define GB_CAMERA_TYPE_METADATA			0x06



#define GB_CAMERA_MAX_STREAMS			4

#define GB_CAMERA_MAX_SETTINGS_SIZE		8192



/* Greybus Camera Configure Streams request payload */

struct gb_camera_stream_config_request {

	__le16 width;

	__le16 height;

	__le16 format;

	__le16 padding;

} __packed;



struct gb_camera_configure_streams_request {

	__le16 num_streams;

	__le16 padding;

	struct gb_camera_stream_config_request config[0];

} __packed;



/* Greybus Camera Configure Streams response payload */

struct gb_camera_stream_config_response {

	__le16 width;

	__le16 height;

	__le16 format;

	__u8 virtual_channel;

	__u8 data_type[2];

	__u8 padding[3];

	__le32 max_size;

} __packed;



struct gb_camera_configure_streams_response {

	__le16 num_streams;

#define GB_CAMERA_CONFIGURE_STREAMS_ADJUSTED	0x01

	u8 flags;

	u8 padding;

	struct gb_camera_stream_config_response config[0];

} __packed;



/* Greybus Camera Capture request payload - response has no payload */

struct gb_camera_capture_request {

	__le32 request_id;

	u8 streams;

	u8 padding;

	__le16 num_frames;

	u8 settings[0];

} __packed;



/* Greybus Camera Flush response payload - request has no payload */

struct gb_camera_flush_response {

	__le32 request_id;

} __packed;



/* Greybus Camera Metadata request payload - operation has no response */

struct gb_camera_metadata_request {

	__le32 request_id;

	__le16 frame_number;

	__u8 stream;

	__u8 padding;

	u8 metadata[0];

} __packed;



/* Lights */



#define GB_LIGHTS_VERSION_MAJOR 0x00