| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | * @interlaced: true for interlaced pipelines |
| 29 | * @callback: frame completion callback function (optional). When a callback |
| 30 | * is provided, the VSP driver guarantees that it will be called once |
| 31 | * and only once for each vsp1_du_atomic_flush() call. |
| 32 | * @callback_data: data to be passed to the frame completion callback |
| 33 | */ |
| 34 | struct vsp1_du_lif_config { |
| 35 | unsigned int width; |
| 36 | unsigned int height; |
| 37 | bool interlaced; |
| 38 | |
| 39 | void (*callback)(void *data, bool completed, u32 crc); |
| 40 | void *callback_data; |
| 41 | }; |
| 42 | |
| 43 | int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index, |
| 44 | const struct vsp1_du_lif_config *cfg); |
| 45 | |
| 46 | /** |
| 47 | * struct vsp1_du_atomic_config - VSP atomic configuration parameters |
| 48 | * @pixelformat: plane pixel format (V4L2 4CC) |
| 49 | * @pitch: line pitch in bytes, for all planes |
| 50 | * @mem: DMA memory address for each plane of the frame buffer |
| 51 | * @src: source rectangle in the frame buffer (integer coordinates) |
| 52 | * @dst: destination rectangle on the display (integer coordinates) |
| 53 | * @alpha: alpha value (0: fully transparent, 255: fully opaque) |
| 54 | * @zpos: Z position of the plane (from 0 to number of planes minus 1) |
| 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 | }; |
| 65 | |
| 66 | /** |
| 67 | * enum vsp1_du_crc_source - Source used for CRC calculation |
| 68 | * @VSP1_DU_CRC_NONE: CRC calculation disabled |
| 69 | * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane |
| 70 | * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output |
| 71 | */ |
| 72 | enum vsp1_du_crc_source { |
| 73 | VSP1_DU_CRC_NONE, |
| 74 | VSP1_DU_CRC_PLANE, |
| 75 | VSP1_DU_CRC_OUTPUT, |
| 76 | }; |
| 77 | |
| 78 | /** |
| 79 | * struct vsp1_du_crc_config - VSP CRC computation configuration parameters |
| 80 | * @source: source for CRC calculation |
| 81 | * @index: index of the CRC source plane (when source is set to plane) |
| 82 | */ |
| 83 | struct vsp1_du_crc_config { |
| 84 | enum vsp1_du_crc_source source; |
| 85 | unsigned int index; |
| 86 | }; |
| 87 | |
| 88 | /** |
| 89 | * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters |
| 90 | * @crc: CRC computation configuration |
| 91 | */ |
| 92 | struct vsp1_du_atomic_pipe_config { |
| 93 | struct vsp1_du_crc_config crc; |
| 94 | }; |
| 95 | |
| 96 | void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index); |
| 97 | int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index, |
| 98 | unsigned int rpf, |
| 99 | const struct vsp1_du_atomic_config *cfg); |
| 100 | void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index, |
| 101 | const struct vsp1_du_atomic_pipe_config *cfg); |
| 102 | int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt); |
| 103 | void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt); |
| 104 | |
| 105 | #endif /* __MEDIA_VSP1_H__ */ |