LXR linux/drivers/media/platform/rockchip/rga/rga.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
   4 * Author: Jacob Chen <jacob-chen@iotwrt.com>
   5 */
   6#ifndef __RGA_H__
   7#define __RGA_H__
   8
   9#include <linux/platform_device.h>
  10#include <media/videobuf2-v4l2.h>
  11#include <media/v4l2-ctrls.h>
  12#include <media/v4l2-device.h>
  13
  14#define RGA_NAME "rockchip-rga"
  15
  16struct rga_fmt {
  17        u32 fourcc;
  18        int depth;
  19        u8 uv_factor;
  20        u8 y_div;
  21        u8 x_div;
  22        u8 color_swap;
  23        u8 hw_format;
  24};
  25
  26struct rga_frame {
  27        /* Original dimensions */
  28        u32 width;
  29        u32 height;
  30        u32 colorspace;
  31
  32        /* Crop */
  33        struct v4l2_rect crop;
  34
  35        /* Image format */
  36        struct rga_fmt *fmt;
  37
  38        /* Variables that can calculated once and reused */
  39        u32 stride;
  40        u32 size;
  41};
  42
  43struct rockchip_rga_version {
  44        u32 major;
  45        u32 minor;
  46};
  47
  48struct rga_ctx {
  49        struct v4l2_fh fh;
  50        struct rockchip_rga *rga;
  51        struct rga_frame in;
  52        struct rga_frame out;
  53        struct v4l2_ctrl_handler ctrl_handler;
  54
  55        /* Control values */
  56        u32 op;
  57        u32 hflip;
  58        u32 vflip;
  59        u32 rotate;
  60        u32 fill_color;
  61};
  62
  63struct rockchip_rga {
  64        struct v4l2_device v4l2_dev;
  65        struct v4l2_m2m_dev *m2m_dev;
  66        struct video_device *vfd;
  67
  68        struct device *dev;
  69        struct regmap *grf;
  70        void __iomem *regs;
  71        struct clk *sclk;
  72        struct clk *aclk;
  73        struct clk *hclk;
  74        struct rockchip_rga_version version;
  75
  76        /* vfd lock */
  77        struct mutex mutex;
  78        /* ctrl parm lock */
  79        spinlock_t ctrl_lock;
  80
  81        struct rga_ctx *curr;
  82        dma_addr_t cmdbuf_phy;
  83        void *cmdbuf_virt;
  84        unsigned int *src_mmu_pages;
  85        unsigned int *dst_mmu_pages;
  86};
  87
  88struct rga_frame *rga_get_frame(struct rga_ctx *ctx, enum v4l2_buf_type type);
  89
  90/* RGA Buffers Manage */
  91extern const struct vb2_ops rga_qops;
  92void rga_buf_map(struct vb2_buffer *vb);
  93
  94/* RGA Hardware */
  95static inline void rga_write(struct rockchip_rga *rga, u32 reg, u32 value)
  96{
  97        writel(value, rga->regs + reg);
  98};
  99
 100static inline u32 rga_read(struct rockchip_rga *rga, u32 reg)
 101{
 102        return readl(rga->regs + reg);
 103};
 104
 105static inline void rga_mod(struct rockchip_rga *rga, u32 reg, u32 val, u32 mask)
 106{
 107        u32 temp = rga_read(rga, reg) & ~(mask);
 108
 109        temp |= val & mask;
 110        rga_write(rga, reg, temp);
 111};
 112
 113void rga_hw_start(struct rockchip_rga *rga);
 114
 115#endif
 116