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
  26 #define SUN4I_FRONTEND_LINESTRD0_REG            0x040
  27
  28 #define SUN4I_FRONTEND_INPUT_FMT_REG            0x04c
  29 #define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD(mod)          ((mod) << 8)
  30 #define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT(fmt)          ((fmt) << 4)
  31 #define SUN4I_FRONTEND_INPUT_FMT_PS(ps)                 (ps)
  32
  33 #define SUN4I_FRONTEND_OUTPUT_FMT_REG           0x05c
  34 #define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT(fmt)         (fmt)
  35
  36 #define SUN4I_FRONTEND_CH0_INSIZE_REG           0x100
  37 #define SUN4I_FRONTEND_INSIZE(h, w)                     ((((h) - 1) << 16) | (((w) - 1)))
  38
  39 #define SUN4I_FRONTEND_CH0_OUTSIZE_REG          0x104
  40 #define SUN4I_FRONTEND_OUTSIZE(h, w)                    ((((h) - 1) << 16) | (((w) - 1)))
  41
  42 #define SUN4I_FRONTEND_CH0_HORZFACT_REG         0x108
  43 #define SUN4I_FRONTEND_HORZFACT(i, f)                   (((i) << 16) | (f))
  44
  45 #define SUN4I_FRONTEND_CH0_VERTFACT_REG         0x10c
  46 #define SUN4I_FRONTEND_VERTFACT(i, f)                   (((i) << 16) | (f))
  47
  48 #define SUN4I_FRONTEND_CH0_HORZPHASE_REG        0x110
  49 #define SUN4I_FRONTEND_CH0_VERTPHASE0_REG       0x114
  50 #define SUN4I_FRONTEND_CH0_VERTPHASE1_REG       0x118
  51
  52 #define SUN4I_FRONTEND_CH1_INSIZE_REG           0x200
  53 #define SUN4I_FRONTEND_CH1_OUTSIZE_REG          0x204
  54 #define SUN4I_FRONTEND_CH1_HORZFACT_REG         0x208
  55 #define SUN4I_FRONTEND_CH1_VERTFACT_REG         0x20c
  56
  57 #define SUN4I_FRONTEND_CH1_HORZPHASE_REG        0x210
  58 #define SUN4I_FRONTEND_CH1_VERTPHASE0_REG       0x214
  59 #define SUN4I_FRONTEND_CH1_VERTPHASE1_REG       0x218
  60
  61 #define SUN4I_FRONTEND_CH0_HORZCOEF0_REG(i)     (0x400 + i * 4)
  62 #define SUN4I_FRONTEND_CH0_HORZCOEF1_REG(i)     (0x480 + i * 4)
  63 #define SUN4I_FRONTEND_CH0_VERTCOEF_REG(i)      (0x500 + i * 4)
  64 #define SUN4I_FRONTEND_CH1_HORZCOEF0_REG(i)     (0x600 + i * 4)
  65 #define SUN4I_FRONTEND_CH1_HORZCOEF1_REG(i)     (0x680 + i * 4)
  66 #define SUN4I_FRONTEND_CH1_VERTCOEF_REG(i)      (0x700 + i * 4)
  67
  68 struct clk;
  69 struct device_node;
  70 struct drm_plane;
  71 struct regmap;
  72 struct reset_control;
  73
  74 struct sun4i_frontend {
  75         struct list_head        list;
  76         struct device           *dev;
  77         struct device_node      *node;
  78
  79         struct clk              *bus_clk;
  80         struct clk              *mod_clk;
  81         struct clk              *ram_clk;
  82         struct regmap           *regs;
  83         struct reset_control    *reset;
  84 };
  85
  86 extern const struct of_device_id sun4i_frontend_of_table[];
  87
  88 int sun4i_frontend_init(struct sun4i_frontend *frontend);
  89 void sun4i_frontend_exit(struct sun4i_frontend *frontend);
  90 int sun4i_frontend_enable(struct sun4i_frontend *frontend);
  91
  92 void sun4i_frontend_update_buffer(struct sun4i_frontend *frontend,
  93                                   struct drm_plane *plane);
  94 void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,
  95                                  struct drm_plane *plane);
  96 int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
  97                                   struct drm_plane *plane, uint32_t out_fmt);
  98
  99 #endif /* _SUN4I_FRONTEND_H_ */