2 * vsp1.h -- R-Car VSP1 API
4 * Copyright (C) 2015 Renesas Electronics Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 #ifndef __MEDIA_VSP1_H__
14 #define __MEDIA_VSP1_H__
16 #include <linux/scatterlist.h>
17 #include <linux/types.h>
18 #include <linux/videodev2.h>
22 int vsp1_du_init(struct device *dev);
25 * struct vsp1_du_lif_config - VSP LIF configuration
26 * @width: output frame width
27 * @height: output frame height
28 * @callback: frame completion callback function (optional). When a callback
29 * is provided, the VSP driver guarantees that it will be called once
30 * and only once for each vsp1_du_atomic_flush() call.
31 * @callback_data: data to be passed to the frame completion callback
33 struct vsp1_du_lif_config {
37 void (*callback)(void *data, bool completed, u32 crc);
41 int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
42 const struct vsp1_du_lif_config *cfg);
45 * struct vsp1_du_atomic_config - VSP atomic configuration parameters
46 * @pixelformat: plane pixel format (V4L2 4CC)
47 * @pitch: line pitch in bytes, for all planes
48 * @mem: DMA memory address for each plane of the frame buffer
49 * @src: source rectangle in the frame buffer (integer coordinates)
50 * @dst: destination rectangle on the display (integer coordinates)
51 * @alpha: alpha value (0: fully transparent, 255: fully opaque)
52 * @zpos: Z position of the plane (from 0 to number of planes minus 1)
54 struct vsp1_du_atomic_config {
65 * enum vsp1_du_crc_source - Source used for CRC calculation
66 * @VSP1_DU_CRC_NONE: CRC calculation disabled
67 * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane
68 * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output
70 enum vsp1_du_crc_source {
77 * struct vsp1_du_crc_config - VSP CRC computation configuration parameters
78 * @source: source for CRC calculation
79 * @index: index of the CRC source plane (when source is set to plane)
81 struct vsp1_du_crc_config {
82 enum vsp1_du_crc_source source;
87 * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters
88 * @crc: CRC computation configuration
90 struct vsp1_du_atomic_pipe_config {
91 struct vsp1_du_crc_config crc;
94 void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index);
95 int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
97 const struct vsp1_du_atomic_config *cfg);
98 void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index,
99 const struct vsp1_du_atomic_pipe_config *cfg);
100 int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt);
101 void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt);
103 #endif /* __MEDIA_VSP1_H__ */