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 * @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 32 */ 33 struct vsp1_du_lif_config { 34 unsigned int width; 35 unsigned int height; 36 37 void (*callback)(void *data, bool completed, u32 crc); 38 void *callback_data; 39 }; 40 41 int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index, 42 const struct vsp1_du_lif_config *cfg); 43 44 /** 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) 53 */ 54 struct vsp1_du_atomic_config { 55 u32 pixelformat; 56 unsigned int pitch; 57 dma_addr_t mem[3]; 58 struct v4l2_rect src; 59 struct v4l2_rect dst; 60 unsigned int alpha; 61 unsigned int zpos; 62 }; 63 64 /** 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 69 */ 70 enum vsp1_du_crc_source { 71 VSP1_DU_CRC_NONE, 72 VSP1_DU_CRC_PLANE, 73 VSP1_DU_CRC_OUTPUT, 74 }; 75 76 /** 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) 80 */ 81 struct vsp1_du_crc_config { 82 enum vsp1_du_crc_source source; 83 unsigned int index; 84 }; 85 86 /** 87 * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters 88 * @crc: CRC computation configuration 89 */ 90 struct vsp1_du_atomic_pipe_config { 91 struct vsp1_du_crc_config crc; 92 }; 93 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, 96 unsigned int rpf, 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); 102 103 #endif /* __MEDIA_VSP1_H__ */ 104