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 * @premult: true for premultiplied alpha 55 * @color_encoding: color encoding (valid for YUV formats only) 56 * @color_range: color range (valid for YUV formats only) 57 */ 58 struct vsp1_du_atomic_config { 59 u32 pixelformat; 60 unsigned int pitch; 61 dma_addr_t mem[3]; 62 struct v4l2_rect src; 63 struct v4l2_rect dst; 64 unsigned int alpha; 65 unsigned int zpos; 66 bool premult; 67 enum v4l2_ycbcr_encoding color_encoding; 68 enum v4l2_quantization color_range; 69 }; 70 71 /** 72 * enum vsp1_du_crc_source - Source used for CRC calculation 73 * @VSP1_DU_CRC_NONE: CRC calculation disabled 74 * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane 75 * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output 76 */ 77 enum vsp1_du_crc_source { 78 VSP1_DU_CRC_NONE, 79 VSP1_DU_CRC_PLANE, 80 VSP1_DU_CRC_OUTPUT, 81 }; 82 83 /** 84 * struct vsp1_du_crc_config - VSP CRC computation configuration parameters 85 * @source: source for CRC calculation 86 * @index: index of the CRC source plane (when source is set to plane) 87 */ 88 struct vsp1_du_crc_config { 89 enum vsp1_du_crc_source source; 90 unsigned int index; 91 }; 92 93 /** 94 * struct vsp1_du_writeback_config - VSP writeback configuration parameters 95 * @pixelformat: plane pixel format (V4L2 4CC) 96 * @pitch: line pitch in bytes for the first plane 97 * @mem: DMA memory address for each plane of the frame buffer 98 */ 99 struct vsp1_du_writeback_config { 100 u32 pixelformat; 101 unsigned int pitch; 102 dma_addr_t mem[3]; 103 }; 104 105 /** 106 * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters 107 * @crc: CRC computation configuration 108 * @writeback: writeback configuration 109 */ 110 struct vsp1_du_atomic_pipe_config { 111 struct vsp1_du_crc_config crc; 112 struct vsp1_du_writeback_config writeback; 113 }; 114 115 void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index); 116 int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index, 117 unsigned int rpf, 118 const struct vsp1_du_atomic_config *cfg); 119 void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index, 120 const struct vsp1_du_atomic_pipe_config *cfg); 121 int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt); 122 void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt); 123 124 #endif /* __MEDIA_VSP1_H__ */ 125