104 строки
3.2 KiB
C
104 строки
3.2 KiB
C
/*
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* vsp1.h -- R-Car VSP1 API
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*
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* Copyright (C) 2015 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __MEDIA_VSP1_H__
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#define __MEDIA_VSP1_H__
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#include <linux/scatterlist.h>
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#include <linux/types.h>
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#include <linux/videodev2.h>
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struct device;
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int vsp1_du_init(struct device *dev);
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/**
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* struct vsp1_du_lif_config - VSP LIF configuration
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* @width: output frame width
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* @height: output frame height
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* @callback: frame completion callback function (optional). When a callback
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* is provided, the VSP driver guarantees that it will be called once
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* and only once for each vsp1_du_atomic_flush() call.
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* @callback_data: data to be passed to the frame completion callback
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*/
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struct vsp1_du_lif_config {
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unsigned int width;
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unsigned int height;
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void (*callback)(void *data, bool completed, u32 crc);
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void *callback_data;
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};
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int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
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const struct vsp1_du_lif_config *cfg);
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/**
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* struct vsp1_du_atomic_config - VSP atomic configuration parameters
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* @pixelformat: plane pixel format (V4L2 4CC)
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* @pitch: line pitch in bytes, for all planes
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* @mem: DMA memory address for each plane of the frame buffer
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* @src: source rectangle in the frame buffer (integer coordinates)
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* @dst: destination rectangle on the display (integer coordinates)
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* @alpha: alpha value (0: fully transparent, 255: fully opaque)
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* @zpos: Z position of the plane (from 0 to number of planes minus 1)
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*/
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struct vsp1_du_atomic_config {
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u32 pixelformat;
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unsigned int pitch;
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dma_addr_t mem[3];
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struct v4l2_rect src;
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struct v4l2_rect dst;
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unsigned int alpha;
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unsigned int zpos;
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};
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/**
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* enum vsp1_du_crc_source - Source used for CRC calculation
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* @VSP1_DU_CRC_NONE: CRC calculation disabled
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* @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane
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* @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output
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*/
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enum vsp1_du_crc_source {
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VSP1_DU_CRC_NONE,
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VSP1_DU_CRC_PLANE,
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VSP1_DU_CRC_OUTPUT,
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};
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/**
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* struct vsp1_du_crc_config - VSP CRC computation configuration parameters
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* @source: source for CRC calculation
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* @index: index of the CRC source plane (when source is set to plane)
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*/
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struct vsp1_du_crc_config {
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enum vsp1_du_crc_source source;
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unsigned int index;
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};
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/**
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* struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters
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* @crc: CRC computation configuration
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*/
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struct vsp1_du_atomic_pipe_config {
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struct vsp1_du_crc_config crc;
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};
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void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index);
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int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
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unsigned int rpf,
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const struct vsp1_du_atomic_config *cfg);
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void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index,
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const struct vsp1_du_atomic_pipe_config *cfg);
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int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt);
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void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt);
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#endif /* __MEDIA_VSP1_H__ */
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