1 /* 2 * vsp1.h -- R-Car VSP1 API 3 * 4 * Copyright (C) 2015 Renesas Electronics Corporation 5 * 6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) 7 * 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. 12 */ 13 #ifndef __MEDIA_VSP1_H__ 14 #define __MEDIA_VSP1_H__ 15 16 #include <linux/scatterlist.h> 17 #include <linux/types.h> 18 #include <linux/videodev2.h> 19 20 struct device; 21 22 int vsp1_du_init(struct device *dev); 23 24 /** 25 * struct vsp1_du_lif_config - VSP LIF configuration 26 * @width: output frame width 27 * @height: output frame height 28 * @interlaced: true for interlaced pipelines 29 * @callback: frame completion callback function (optional). When a callback 30 * is provided, the VSP driver guarantees that it will be called once 31 * and only once for each vsp1_du_atomic_flush() call. 32 * @callback_data: data to be passed to the frame completion callback 33 */ 34 struct vsp1_du_lif_config { 35 unsigned int width; 36 unsigned int height; 37 bool interlaced; 38 39 void (*callback)(void *data, bool completed, u32 crc); 40 void *callback_data; 41 }; 42 43 int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index, 44 const struct vsp1_du_lif_config *cfg); 45 46 /** 47 * struct vsp1_du_atomic_config - VSP atomic configuration parameters 48 * @pixelformat: plane pixel format (V4L2 4CC) 49 * @pitch: line pitch in bytes, for all planes 50 * @mem: DMA memory address for each plane of the frame buffer 51 * @src: source rectangle in the frame buffer (integer coordinates) 52 * @dst: destination rectangle on the display (integer coordinates) 53 * @alpha: alpha value (0: fully transparent, 255: fully opaque) 54 * @zpos: Z position of the plane (from 0 to number of planes minus 1) 55 */ 56 struct vsp1_du_atomic_config { 57 u32 pixelformat; 58 unsigned int pitch; 59 dma_addr_t mem[3]; 60 struct v4l2_rect src; 61 struct v4l2_rect dst; 62 unsigned int alpha; 63 unsigned int zpos; 64 }; 65 66 /** 67 * enum vsp1_du_crc_source - Source used for CRC calculation 68 * @VSP1_DU_CRC_NONE: CRC calculation disabled 69 * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane 70 * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output 71 */ 72 enum vsp1_du_crc_source { 73 VSP1_DU_CRC_NONE, 74 VSP1_DU_CRC_PLANE, 75 VSP1_DU_CRC_OUTPUT, 76 }; 77 78 /** 79 * struct vsp1_du_crc_config - VSP CRC computation configuration parameters 80 * @source: source for CRC calculation 81 * @index: index of the CRC source plane (when source is set to plane) 82 */ 83 struct vsp1_du_crc_config { 84 enum vsp1_du_crc_source source; 85 unsigned int index; 86 }; 87 88 /** 89 * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters 90 * @crc: CRC computation configuration 91 */ 92 struct vsp1_du_atomic_pipe_config { 93 struct vsp1_du_crc_config crc; 94 }; 95 96 void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index); 97 int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index, 98 unsigned int rpf, 99 const struct vsp1_du_atomic_config *cfg); 100 void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index, 101 const struct vsp1_du_atomic_pipe_config *cfg); 102 int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt); 103 void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt); 104 105 #endif /* __MEDIA_VSP1_H__ */ 106