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