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
  16 struct 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
  26 struct 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
  43 struct rockchip_rga_version {
  44         u32 major;
  45         u32 minor;
  46 };
  47
  48 struct 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
  63 struct 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
  88 struct rga_frame *rga_get_frame(struct rga_ctx *ctx, enum v4l2_buf_type type);
  89
  90 /* RGA Buffers Manage */
  91 extern const struct vb2_ops rga_qops;
  92 void rga_buf_map(struct vb2_buffer *vb);
  93
  94 /* RGA Hardware */
  95 static inline void rga_write(struct rockchip_rga *rga, u32 reg, u32 value)
  96 {
  97         writel(value, rga->regs + reg);
  98 };
  99
 100 static inline u32 rga_read(struct rockchip_rga *rga, u32 reg)
 101 {
 102         return readl(rga->regs + reg);
 103 };
 104
 105 static 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
 113 void rga_hw_start(struct rockchip_rga *rga);
 114
 115 #endif