drivers/gpu/drm/sun4i/sun4i_frontend.h

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017 Free Electrons
   4  * Maxime Ripard <maxime.ripard@free-electrons.com>
   5  */
   6
   7 #ifndef _SUN4I_FRONTEND_H_
   8 #define _SUN4I_FRONTEND_H_
   9
  10 #include <linux/list.h>
  11
  12 #define SUN4I_FRONTEND_EN_REG                   0x000
  13 #define SUN4I_FRONTEND_EN_EN                            BIT(0)
  14
  15 #define SUN4I_FRONTEND_FRM_CTRL_REG             0x004
  16 #define SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL        BIT(23)
  17 #define SUN4I_FRONTEND_FRM_CTRL_FRM_START               BIT(16)
  18 #define SUN4I_FRONTEND_FRM_CTRL_COEF_RDY                BIT(1)
  19 #define SUN4I_FRONTEND_FRM_CTRL_REG_RDY                 BIT(0)
  20
  21 #define SUN4I_FRONTEND_BYPASS_REG               0x008
  22 #define SUN4I_FRONTEND_BYPASS_CSC_EN                    BIT(1)
  23
  24 #define SUN4I_FRONTEND_BUF_ADDR0_REG            0x020
  25 #define SUN4I_FRONTEND_BUF_ADDR1_REG            0x024
  26 #define SUN4I_FRONTEND_BUF_ADDR2_REG            0x028
  27
  28 #define SUN4I_FRONTEND_TB_OFF0_REG              0x030
  29 #define SUN4I_FRONTEND_TB_OFF1_REG              0x034
  30 #define SUN4I_FRONTEND_TB_OFF2_REG              0x038
  31 #define SUN4I_FRONTEND_TB_OFF_X1(x1)                    ((x1) << 16)
  32 #define SUN4I_FRONTEND_TB_OFF_Y0(y0)                    ((y0) << 8)
  33 #define SUN4I_FRONTEND_TB_OFF_X0(x0)                    (x0)
  34
  35 #define SUN4I_FRONTEND_LINESTRD0_REG            0x040
  36 #define SUN4I_FRONTEND_LINESTRD1_REG            0x044
  37 #define SUN4I_FRONTEND_LINESTRD2_REG            0x048
  38
  39 /*
  40  * In tiled mode, the stride is defined as the distance between the start of the
  41  * end line of the current tile and the start of the first line in the next
  42  * vertical tile.
  43  *
  44  * Tiles are represented in row-major order, thus the end line of current tile
  45  * starts at: 31 * 32 (31 lines of 32 cols), the next vertical tile starts at:
  46  * 32-bit-aligned-width * 32 and the distance is:
  47  * 32 * (32-bit-aligned-width - 31).
  48  */
  49 #define SUN4I_FRONTEND_LINESTRD_TILED(stride)           (((stride) - 31) * 32)
  50
  51 #define SUN4I_FRONTEND_INPUT_FMT_REG            0x04c
  52 #define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_PLANAR        (0 << 8)
  53 #define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_PACKED        (1 << 8)
  54 #define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_SEMIPLANAR    (2 << 8)
  55 #define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_MB32_PLANAR   (4 << 8)
  56 #define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_MB32_SEMIPLANAR (6 << 8)
  57 #define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_YUV444        (0 << 4)
  58 #define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_YUV422        (1 << 4)
  59 #define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_YUV420        (2 << 4)
  60 #define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_YUV411        (3 << 4)
  61 #define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB           (5 << 4)
  62 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_UYVY           0
  63 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_YUYV           1
  64 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_VYUY           2
  65 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_YVYU           3
  66 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_UV             0
  67 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_VU             1
  68 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_BGRX           0
  69 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB           1
  70
  71 #define SUN4I_FRONTEND_OUTPUT_FMT_REG           0x05c
  72 #define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_BGRX8888     1
  73 #define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_XRGB8888     2
  74
  75 #define SUN4I_FRONTEND_CSC_COEF_REG(c)          (0x070 + (0x4 * (c)))
  76
  77 #define SUN4I_FRONTEND_CH0_INSIZE_REG           0x100
  78 #define SUN4I_FRONTEND_INSIZE(h, w)                     ((((h) - 1) << 16) | (((w) - 1)))
  79
  80 #define SUN4I_FRONTEND_CH0_OUTSIZE_REG          0x104
  81 #define SUN4I_FRONTEND_OUTSIZE(h, w)                    ((((h) - 1) << 16) | (((w) - 1)))
  82
  83 #define SUN4I_FRONTEND_CH0_HORZFACT_REG         0x108
  84 #define SUN4I_FRONTEND_HORZFACT(i, f)                   (((i) << 16) | (f))
  85
  86 #define SUN4I_FRONTEND_CH0_VERTFACT_REG         0x10c
  87 #define SUN4I_FRONTEND_VERTFACT(i, f)                   (((i) << 16) | (f))
  88
  89 #define SUN4I_FRONTEND_CH0_HORZPHASE_REG        0x110
  90 #define SUN4I_FRONTEND_CH0_VERTPHASE0_REG       0x114
  91 #define SUN4I_FRONTEND_CH0_VERTPHASE1_REG       0x118
  92
  93 #define SUN4I_FRONTEND_CH1_INSIZE_REG           0x200
  94 #define SUN4I_FRONTEND_CH1_OUTSIZE_REG          0x204
  95 #define SUN4I_FRONTEND_CH1_HORZFACT_REG         0x208
  96 #define SUN4I_FRONTEND_CH1_VERTFACT_REG         0x20c
  97
  98 #define SUN4I_FRONTEND_CH1_HORZPHASE_REG        0x210
  99 #define SUN4I_FRONTEND_CH1_VERTPHASE0_REG       0x214
 100 #define SUN4I_FRONTEND_CH1_VERTPHASE1_REG       0x218
 101
 102 #define SUN4I_FRONTEND_CH0_HORZCOEF0_REG(i)     (0x400 + i * 4)
 103 #define SUN4I_FRONTEND_CH0_HORZCOEF1_REG(i)     (0x480 + i * 4)
 104 #define SUN4I_FRONTEND_CH0_VERTCOEF_REG(i)      (0x500 + i * 4)
 105 #define SUN4I_FRONTEND_CH1_HORZCOEF0_REG(i)     (0x600 + i * 4)
 106 #define SUN4I_FRONTEND_CH1_HORZCOEF1_REG(i)     (0x680 + i * 4)
 107 #define SUN4I_FRONTEND_CH1_VERTCOEF_REG(i)      (0x700 + i * 4)
 108
 109 struct clk;
 110 struct device_node;
 111 struct drm_plane;
 112 struct regmap;
 113 struct reset_control;
 114
 115 struct sun4i_frontend_data {
 116         bool    has_coef_access_ctrl;
 117         bool    has_coef_rdy;
 118         u32     ch_phase[2];
 119 };
 120
 121 struct sun4i_frontend {
 122         struct list_head        list;
 123         struct device           *dev;
 124         struct device_node      *node;
 125
 126         struct clk              *bus_clk;
 127         struct clk              *mod_clk;
 128         struct clk              *ram_clk;
 129         struct regmap           *regs;
 130         struct reset_control    *reset;
 131
 132         const struct sun4i_frontend_data        *data;
 133 };
 134
 135 extern const struct of_device_id sun4i_frontend_of_table[];
 136 extern const u32 sunxi_bt601_yuv2rgb_coef[12];
 137
 138 int sun4i_frontend_init(struct sun4i_frontend *frontend);
 139 void sun4i_frontend_exit(struct sun4i_frontend *frontend);
 140 int sun4i_frontend_enable(struct sun4i_frontend *frontend);
 141
 142 void sun4i_frontend_update_buffer(struct sun4i_frontend *frontend,
 143                                   struct drm_plane *plane);
 144 void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,
 145                                  struct drm_plane *plane);
 146 int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
 147                                   struct drm_plane *plane, uint32_t out_fmt);
 148 bool sun4i_frontend_format_is_supported(uint32_t fmt, uint64_t modifier);
 149
 150 #endif /* _SUN4I_FRONTEND_H_ */