include/media/v4l2-mediabus.h

Source file repositories/reference/linux-study-clean/include/media/v4l2-mediabus.h

File Facts

System
Linux kernel
Corpus path
include/media/v4l2-mediabus.h
Extension
.h
Size
9973 bytes
Lines
279
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct v4l2_mbus_config_mipi_csi2 {
	unsigned int flags;
	unsigned char data_lanes[V4L2_MBUS_CSI2_MAX_DATA_LANES];
	unsigned char clock_lane;
	unsigned char num_data_lanes;
	bool lane_polarities[1 + V4L2_MBUS_CSI2_MAX_DATA_LANES];
	enum v4l2_mbus_csi2_cphy_line_orders_type line_orders[V4L2_MBUS_CSI2_MAX_DATA_LANES];
};

/**
 * struct v4l2_mbus_config_parallel - parallel data bus configuration
 * @flags: media bus (V4L2_MBUS_*) flags
 * @bus_width: bus width in bits
 * @data_shift: data shift in bits
 */
struct v4l2_mbus_config_parallel {
	unsigned int flags;
	unsigned char bus_width;
	unsigned char data_shift;
};

/**
 * struct v4l2_mbus_config_mipi_csi1 - CSI-1/CCP2 data bus configuration
 * @clock_inv: polarity of clock/strobe signal
 *	       false - not inverted, true - inverted
 * @strobe: false - data/clock, true - data/strobe
 * @lane_polarity: the polarities of the clock (index 0) and data lanes
 *		   index (1)
 * @data_lane: the number of the data lane
 * @clock_lane: the number of the clock lane
 */
struct v4l2_mbus_config_mipi_csi1 {
	unsigned char clock_inv:1;
	unsigned char strobe:1;
	bool lane_polarity[2];
	unsigned char data_lane;
	unsigned char clock_lane;
};

/**
 * enum v4l2_mbus_type - media bus type
 * @V4L2_MBUS_UNKNOWN:	unknown bus type, no V4L2 mediabus configuration
 * @V4L2_MBUS_PARALLEL:	parallel interface with hsync and vsync
 * @V4L2_MBUS_BT656:	parallel interface with embedded synchronisation, can
 *			also be used for BT.1120
 * @V4L2_MBUS_CSI1:	MIPI CSI-1 serial interface
 * @V4L2_MBUS_CCP2:	CCP2 (Compact Camera Port 2)
 * @V4L2_MBUS_CSI2_DPHY: MIPI CSI-2 serial interface, with D-PHY
 * @V4L2_MBUS_CSI2_CPHY: MIPI CSI-2 serial interface, with C-PHY
 * @V4L2_MBUS_DPI:      MIPI VIDEO DPI interface
 * @V4L2_MBUS_INVALID:	invalid bus type (keep as last)
 */
enum v4l2_mbus_type {
	V4L2_MBUS_UNKNOWN,
	V4L2_MBUS_PARALLEL,
	V4L2_MBUS_BT656,
	V4L2_MBUS_CSI1,
	V4L2_MBUS_CCP2,
	V4L2_MBUS_CSI2_DPHY,
	V4L2_MBUS_CSI2_CPHY,
	V4L2_MBUS_DPI,
	V4L2_MBUS_INVALID,
};

/**
 * struct v4l2_mbus_config - media bus configuration
 * @type: interface type
 * @link_freq: The link frequency. See also V4L2_CID_LINK_FREQ control.
 * @bus: bus configuration data structure
 * @bus.parallel: embedded &struct v4l2_mbus_config_parallel.
 *		  Used if the bus is parallel or BT.656.
 * @bus.mipi_csi1: embedded &struct v4l2_mbus_config_mipi_csi1.
 *		   Used if the bus is MIPI Alliance's Camera Serial
 *		   Interface version 1 (MIPI CSI1) or Standard
 *		   Mobile Imaging Architecture's Compact Camera Port 2
 *		   (SMIA CCP2).
 * @bus.mipi_csi2: embedded &struct v4l2_mbus_config_mipi_csi2.
 *		   Used if the bus is MIPI Alliance's Camera Serial
 *		   Interface version 2 (MIPI CSI2).
 */
struct v4l2_mbus_config {
	enum v4l2_mbus_type type;
	u64 link_freq;
	union {
		struct v4l2_mbus_config_parallel parallel;
		struct v4l2_mbus_config_mipi_csi1 mipi_csi1;
		struct v4l2_mbus_config_mipi_csi2 mipi_csi2;
	} bus;
};

Annotation

Implementation Notes