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 16 struct device; 17 18 int vsp1_du_init(struct device *dev); 19 20 #define VSP1_DU_STATUS_COMPLETE BIT(0) 21 #define VSP1_DU_STATUS_WRITEBACK BIT(1) 22 23 /** 24 * struct vsp1_du_lif_config - VSP LIF configuration 25 * @width: output frame width 26 * @height: output frame height 27 * @interlaced: true for interlaced pipelines 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 bool interlaced; 37 38 void (*callback)(void *data, unsigned int status, u32 crc); 39 void *callback_data; 40 }; 41 42 int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index, 43 const struct vsp1_du_lif_config *cfg); 44 45 /** 46 * struct vsp1_du_atomic_config - VSP atomic configuration parameters 47 * @pixelformat: plane pixel format (V4L2 4CC) 48 * @pitch: line pitch in bytes for the first plane 49 * @mem: DMA memory address for each plane of the frame buffer 50 * @src: source rectangle in the frame buffer (integer coordinates) 51 * @dst: destination rectangle on the display (integer coordinates) 52 * @alpha: alpha value (0: fully transparent, 255: fully opaque) 53 * @zpos: Z position of the plane (from 0 to number of planes minus 1) 54 */ 55 struct vsp1_du_atomic_config { 56 u32 pixelformat; 57 unsigned int pitch; 58 dma_addr_t mem[3]; 59 struct v4l2_rect src; 60 struct v4l2_rect dst; 61 unsigned int alpha; 62 unsigned int zpos; 63 }; 64 65 /** 66 * enum vsp1_du_crc_source - Source used for CRC calculation 67 * @VSP1_DU_CRC_NONE: CRC calculation disabled 68 * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane 69 * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output 70 */ 71 enum vsp1_du_crc_source { 72 VSP1_DU_CRC_NONE, 73 VSP1_DU_CRC_PLANE, 74 VSP1_DU_CRC_OUTPUT, 75 }; 76 77 /** 78 * struct vsp1_du_crc_config - VSP CRC computation configuration parameters 79 * @source: source for CRC calculation 80 * @index: index of the CRC source plane (when source is set to plane) 81 */ 82 struct vsp1_du_crc_config { 83 enum vsp1_du_crc_source source; 84 unsigned int index; 85 }; 86 87 /** 88 * struct vsp1_du_writeback_config - VSP writeback configuration parameters 89 * @pixelformat: plane pixel format (V4L2 4CC) 90 * @pitch: line pitch in bytes for the first plane 91 * @mem: DMA memory address for each plane of the frame buffer 92 */ 93 struct vsp1_du_writeback_config { 94 u32 pixelformat; 95 unsigned int pitch; 96 dma_addr_t mem[3]; 97 }; 98 99 /** 100 * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters 101 * @crc: CRC computation configuration 102 * @writeback: writeback configuration 103 */ 104 struct vsp1_du_atomic_pipe_config { 105 struct vsp1_du_crc_config crc; 106 struct vsp1_du_writeback_config writeback; 107 }; 108 109 void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index); 110 int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index, 111 unsigned int rpf, 112 const struct vsp1_du_atomic_config *cfg); 113 void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index, 114 const struct vsp1_du_atomic_pipe_config *cfg); 115 int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt); 116 void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt); 117 118 #endif /* __MEDIA_VSP1_H__ */ 119