include/media/vsp1.h

Source file repositories/reference/linux-study-clean/include/media/vsp1.h

File Facts

System
Linux kernel
Corpus path
include/media/vsp1.h
Extension
.h
Size
7476 bytes
Lines
215
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 vsp1_du_lif_config {
	unsigned int width;
	unsigned int height;
	bool interlaced;

	void (*callback)(void *data, unsigned int status, u32 crc);
	void *callback_data;
};

int vsp1_du_enable(struct device *dev, unsigned int pipe_index,
		   const struct vsp1_du_lif_config *cfg);
int vsp1_du_disable(struct device *dev, unsigned int pipe_index);

/**
 * struct vsp1_du_atomic_config - VSP atomic configuration parameters
 * @pixelformat: plane pixel format (V4L2 4CC)
 * @pitch: line pitch in bytes for the first plane
 * @mem: DMA memory address for each plane of the frame buffer
 * @src: source rectangle in the frame buffer (integer coordinates)
 * @dst: destination rectangle on the display (integer coordinates)
 * @alpha: alpha value (0: fully transparent, 255: fully opaque)
 * @zpos: Z position of the plane (from 0 to number of planes minus 1)
 * @premult: true for premultiplied alpha
 * @color_encoding: color encoding (valid for YUV formats only)
 * @color_range: color range (valid for YUV formats only)
 */
struct vsp1_du_atomic_config {
	u32 pixelformat;
	unsigned int pitch;
	dma_addr_t mem[3];
	struct v4l2_rect src;
	struct v4l2_rect dst;
	unsigned int alpha;
	unsigned int zpos;
	bool premult;
	enum v4l2_ycbcr_encoding color_encoding;
	enum v4l2_quantization color_range;
};

/**
 * enum vsp1_du_crc_source - Source used for CRC calculation
 * @VSP1_DU_CRC_NONE: CRC calculation disabled
 * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane
 * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output
 */
enum vsp1_du_crc_source {
	VSP1_DU_CRC_NONE,
	VSP1_DU_CRC_PLANE,
	VSP1_DU_CRC_OUTPUT,
};

/**
 * struct vsp1_du_crc_config - VSP CRC computation configuration parameters
 * @source: source for CRC calculation
 * @index: index of the CRC source plane (when source is set to plane)
 */
struct vsp1_du_crc_config {
	enum vsp1_du_crc_source source;
	unsigned int index;
};

/**
 * struct vsp1_du_writeback_config - VSP writeback configuration parameters
 * @pixelformat: plane pixel format (V4L2 4CC)
 * @pitch: line pitch in bytes for the first plane
 * @mem: DMA memory address for each plane of the frame buffer
 */
struct vsp1_du_writeback_config {
	u32 pixelformat;
	unsigned int pitch;
	dma_addr_t mem[3];
};

/**
 * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters
 * @crc: CRC computation configuration
 * @writeback: writeback configuration
 */
struct vsp1_du_atomic_pipe_config {
	struct vsp1_du_crc_config crc;
	struct vsp1_du_writeback_config writeback;
};

void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index);
int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
			  unsigned int rpf,
			  const struct vsp1_du_atomic_config *cfg);
void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index,
			  const struct vsp1_du_atomic_pipe_config *cfg);
int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt);

Annotation

Implementation Notes