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vsp1.h
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vsp1.h
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* vsp1.h -- R-Car VSP1 API
*
* Copyright (C) 2015 Renesas Electronics Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*/
#ifndef __MEDIA_VSP1_H__
#define __MEDIA_VSP1_H__
#include <linux/scatterlist.h>
#include <linux/types.h>
#include <linux/videodev2.h>
struct device;
int vsp1_du_init(struct device *dev);
#define VSP1_DU_STATUS_COMPLETE BIT(0)
#define VSP1_DU_STATUS_WRITEBACK BIT(1)
/**
* struct vsp1_du_lif_config - VSP LIF configuration
* @width: output frame width
* @height: output frame height
* @interlaced: true for interlaced pipelines
* @callback: frame completion callback function (optional). When a callback
* is provided, the VSP driver guarantees that it will be called once
* and only once for each vsp1_du_atomic_flush() call.
* @callback_data: data to be passed to the frame completion callback
*/
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_setup_lif(struct device *dev, unsigned int pipe_index,
const struct vsp1_du_lif_config *cfg);
/**
* 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
*/
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 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);
void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt);
#endif /* __MEDIA_VSP1_H__ */