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