cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

vsp1.h (3652B)

      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
     16struct device;
     17
     18int 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 */
     33struct 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
     42int 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 */
     55struct 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 */
     71enum 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 */
     82struct 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 */
     93struct 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 */
    104struct vsp1_du_atomic_pipe_config {
    105	struct vsp1_du_crc_config crc;
    106	struct vsp1_du_writeback_config writeback;
    107};
    108
    109void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index);
    110int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
    111			  unsigned int rpf,
    112			  const struct vsp1_du_atomic_config *cfg);
    113void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index,
    114			  const struct vsp1_du_atomic_pipe_config *cfg);
    115int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt);
    116void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt);
    117
    118#endif /* __MEDIA_VSP1_H__ */