LXR linux/include/media/vsp1.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * vsp1.h  --  R-Car VSP1 API
   4 *
   5 * Copyright (C) 2015 Renesas Electronics Corporation
   6 *
   7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   8 */
   9#ifndef __MEDIA_VSP1_H__
  10#define __MEDIA_VSP1_H__
  11
  12#include <linux/scatterlist.h>
  13#include <linux/types.h>
  14#include <linux/videodev2.h>
  15
  16struct device;
  17
  18int vsp1_du_init(struct device *dev);
  19
  20/**
  21 * struct vsp1_du_lif_config - VSP LIF configuration
  22 * @width: output frame width
  23 * @height: output frame height
  24 * @interlaced: true for interlaced pipelines
  25 * @callback: frame completion callback function (optional). When a callback
  26 *            is provided, the VSP driver guarantees that it will be called once
  27 *            and only once for each vsp1_du_atomic_flush() call.
  28 * @callback_data: data to be passed to the frame completion callback
  29 */
  30struct vsp1_du_lif_config {
  31        unsigned int width;
  32        unsigned int height;
  33        bool interlaced;
  34
  35        void (*callback)(void *data, bool completed, u32 crc);
  36        void *callback_data;
  37};
  38
  39int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
  40                      const struct vsp1_du_lif_config *cfg);
  41
  42/**
  43 * struct vsp1_du_atomic_config - VSP atomic configuration parameters
  44 * @pixelformat: plane pixel format (V4L2 4CC)
  45 * @pitch: line pitch in bytes for the first plane
  46 * @mem: DMA memory address for each plane of the frame buffer
  47 * @src: source rectangle in the frame buffer (integer coordinates)
  48 * @dst: destination rectangle on the display (integer coordinates)
  49 * @alpha: alpha value (0: fully transparent, 255: fully opaque)
  50 * @zpos: Z position of the plane (from 0 to number of planes minus 1)
  51 */
  52struct vsp1_du_atomic_config {
  53        u32 pixelformat;
  54        unsigned int pitch;
  55        dma_addr_t mem[3];
  56        struct v4l2_rect src;
  57        struct v4l2_rect dst;
  58        unsigned int alpha;
  59        unsigned int zpos;
  60};
  61
  62/**
  63 * enum vsp1_du_crc_source - Source used for CRC calculation
  64 * @VSP1_DU_CRC_NONE: CRC calculation disabled
  65 * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane
  66 * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output
  67 */
  68enum vsp1_du_crc_source {
  69        VSP1_DU_CRC_NONE,
  70        VSP1_DU_CRC_PLANE,
  71        VSP1_DU_CRC_OUTPUT,
  72};
  73
  74/**
  75 * struct vsp1_du_crc_config - VSP CRC computation configuration parameters
  76 * @source: source for CRC calculation
  77 * @index: index of the CRC source plane (when source is set to plane)
  78 */
  79struct vsp1_du_crc_config {
  80        enum vsp1_du_crc_source source;
  81        unsigned int index;
  82};
  83
  84/**
  85 * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters
  86 * @crc: CRC computation configuration
  87 */
  88struct vsp1_du_atomic_pipe_config {
  89        struct vsp1_du_crc_config crc;
  90};
  91
  92void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index);
  93int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
  94                          unsigned int rpf,
  95                          const struct vsp1_du_atomic_config *cfg);
  96void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index,
  97                          const struct vsp1_du_atomic_pipe_config *cfg);
  98int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt);
  99void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt);
 100
 101#endif /* __MEDIA_VSP1_H__ */
 102