drivers/gpu/drm/sun4i/sun4i_backend.h

   1 /*
   2  * Copyright (C) 2015 Free Electrons
   3  * Copyright (C) 2015 NextThing Co
   4  *
   5  * Maxime Ripard <maxime.ripard@free-electrons.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  */
  12
  13 #ifndef _SUN4I_BACKEND_H_
  14 #define _SUN4I_BACKEND_H_
  15
  16 #include <linux/clk.h>
  17 #include <linux/list.h>
  18 #include <linux/of.h>
  19 #include <linux/regmap.h>
  20 #include <linux/reset.h>
  21
  22 #include "sunxi_engine.h"
  23
  24 #define SUN4I_BACKEND_MODCTL_REG                0x800
  25 #define SUN4I_BACKEND_MODCTL_LINE_SEL                   BIT(29)
  26 #define SUN4I_BACKEND_MODCTL_ITLMOD_EN                  BIT(28)
  27 #define SUN4I_BACKEND_MODCTL_OUT_SEL                    GENMASK(22, 20)
  28 #define SUN4I_BACKEND_MODCTL_OUT_LCD0                           (0 << 20)
  29 #define SUN4I_BACKEND_MODCTL_OUT_LCD1                           (1 << 20)
  30 #define SUN4I_BACKEND_MODCTL_OUT_FE0                            (6 << 20)
  31 #define SUN4I_BACKEND_MODCTL_OUT_FE1                            (7 << 20)
  32 #define SUN4I_BACKEND_MODCTL_HWC_EN                     BIT(16)
  33 #define SUN4I_BACKEND_MODCTL_LAY_EN(l)                  BIT(8 + l)
  34 #define SUN4I_BACKEND_MODCTL_OCSC_EN                    BIT(5)
  35 #define SUN4I_BACKEND_MODCTL_DFLK_EN                    BIT(4)
  36 #define SUN4I_BACKEND_MODCTL_DLP_START_CTL              BIT(2)
  37 #define SUN4I_BACKEND_MODCTL_START_CTL                  BIT(1)
  38 #define SUN4I_BACKEND_MODCTL_DEBE_EN                    BIT(0)
  39
  40 #define SUN4I_BACKEND_BACKCOLOR_REG             0x804
  41 #define SUN4I_BACKEND_BACKCOLOR(r, g, b)                (((r) << 16) | ((g) << 8) | (b))
  42
  43 #define SUN4I_BACKEND_DISSIZE_REG               0x808
  44 #define SUN4I_BACKEND_DISSIZE(w, h)                     (((((h) - 1) & 0xffff) << 16) | \
  45                                                          (((w) - 1) & 0xffff))
  46
  47 #define SUN4I_BACKEND_LAYSIZE_REG(l)            (0x810 + (0x4 * (l)))
  48 #define SUN4I_BACKEND_LAYSIZE(w, h)                     (((((h) - 1) & 0x1fff) << 16) | \
  49                                                          (((w) - 1) & 0x1fff))
  50
  51 #define SUN4I_BACKEND_LAYCOOR_REG(l)            (0x820 + (0x4 * (l)))
  52 #define SUN4I_BACKEND_LAYCOOR(x, y)                     ((((u32)(y) & 0xffff) << 16) | \
  53                                                          ((u32)(x) & 0xffff))
  54
  55 #define SUN4I_BACKEND_LAYLINEWIDTH_REG(l)       (0x840 + (0x4 * (l)))
  56
  57 #define SUN4I_BACKEND_LAYFB_L32ADD_REG(l)       (0x850 + (0x4 * (l)))
  58
  59 #define SUN4I_BACKEND_LAYFB_H4ADD_REG           0x860
  60 #define SUN4I_BACKEND_LAYFB_H4ADD_MSK(l)                GENMASK(3 + ((l) * 8), (l) * 8)
  61 #define SUN4I_BACKEND_LAYFB_H4ADD(l, val)               ((val) << ((l) * 8))
  62
  63 #define SUN4I_BACKEND_REGBUFFCTL_REG            0x870
  64 #define SUN4I_BACKEND_REGBUFFCTL_AUTOLOAD_DIS           BIT(1)
  65 #define SUN4I_BACKEND_REGBUFFCTL_LOADCTL                BIT(0)
  66
  67 #define SUN4I_BACKEND_CKMAX_REG                 0x880
  68 #define SUN4I_BACKEND_CKMIN_REG                 0x884
  69 #define SUN4I_BACKEND_CKCFG_REG                 0x888
  70 #define SUN4I_BACKEND_ATTCTL_REG0(l)            (0x890 + (0x4 * (l)))
  71 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_MASK     GENMASK(31, 24)
  72 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA(x)               ((x) << 24)
  73 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL_MASK      BIT(15)
  74 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL(x)                ((x) << 15)
  75 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL_MASK       GENMASK(11, 10)
  76 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL(x)                 ((x) << 10)
  77 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_YUVEN             BIT(2)
  78 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_VDOEN             BIT(1)
  79 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_EN       BIT(0)
  80
  81 #define SUN4I_BACKEND_ATTCTL_REG1(l)            (0x8a0 + (0x4 * (l)))
  82 #define SUN4I_BACKEND_ATTCTL_REG1_LAY_HSCAFCT           GENMASK(15, 14)
  83 #define SUN4I_BACKEND_ATTCTL_REG1_LAY_WSCAFCT           GENMASK(13, 12)
  84 #define SUN4I_BACKEND_ATTCTL_REG1_LAY_FBFMT             GENMASK(11, 8)
  85 #define SUN4I_BACKEND_LAY_FBFMT_1BPP                            (0 << 8)
  86 #define SUN4I_BACKEND_LAY_FBFMT_2BPP                            (1 << 8)
  87 #define SUN4I_BACKEND_LAY_FBFMT_4BPP                            (2 << 8)
  88 #define SUN4I_BACKEND_LAY_FBFMT_8BPP                            (3 << 8)
  89 #define SUN4I_BACKEND_LAY_FBFMT_RGB655                          (4 << 8)
  90 #define SUN4I_BACKEND_LAY_FBFMT_RGB565                          (5 << 8)
  91 #define SUN4I_BACKEND_LAY_FBFMT_RGB556                          (6 << 8)
  92 #define SUN4I_BACKEND_LAY_FBFMT_ARGB1555                        (7 << 8)
  93 #define SUN4I_BACKEND_LAY_FBFMT_RGBA5551                        (8 << 8)
  94 #define SUN4I_BACKEND_LAY_FBFMT_XRGB8888                        (9 << 8)
  95 #define SUN4I_BACKEND_LAY_FBFMT_ARGB8888                        (10 << 8)
  96 #define SUN4I_BACKEND_LAY_FBFMT_RGB888                          (11 << 8)
  97 #define SUN4I_BACKEND_LAY_FBFMT_ARGB4444                        (12 << 8)
  98 #define SUN4I_BACKEND_LAY_FBFMT_RGBA4444                        (13 << 8)
  99
 100 #define SUN4I_BACKEND_DLCDPCTL_REG              0x8b0
 101 #define SUN4I_BACKEND_DLCDPFRMBUF_ADDRCTL_REG   0x8b4
 102 #define SUN4I_BACKEND_DLCDPCOOR_REG0            0x8b8
 103 #define SUN4I_BACKEND_DLCDPCOOR_REG1            0x8bc
 104
 105 #define SUN4I_BACKEND_INT_EN_REG                0x8c0
 106 #define SUN4I_BACKEND_INT_FLAG_REG              0x8c4
 107 #define SUN4I_BACKEND_REG_LOAD_FINISHED                 BIT(1)
 108
 109 #define SUN4I_BACKEND_HWCCTL_REG                0x8d8
 110 #define SUN4I_BACKEND_HWCFBCTL_REG              0x8e0
 111 #define SUN4I_BACKEND_WBCTL_REG                 0x8f0
 112 #define SUN4I_BACKEND_WBADD_REG                 0x8f4
 113 #define SUN4I_BACKEND_WBLINEWIDTH_REG           0x8f8
 114 #define SUN4I_BACKEND_SPREN_REG                 0x900
 115 #define SUN4I_BACKEND_SPRFMTCTL_REG             0x908
 116 #define SUN4I_BACKEND_SPRALPHACTL_REG           0x90c
 117
 118 #define SUN4I_BACKEND_IYUVCTL_REG               0x920
 119 #define SUN4I_BACKEND_IYUVCTL_FBFMT_MASK                GENMASK(14, 12)
 120 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV444               (4 << 12)
 121 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV422               (3 << 12)
 122 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV444               (2 << 12)
 123 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV222               (1 << 12)
 124 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV111               (0 << 12)
 125 #define SUN4I_BACKEND_IYUVCTL_FBPS_MASK                 GENMASK(9, 8)
 126 #define SUN4I_BACKEND_IYUVCTL_FBPS_YVYU                         (3 << 8)
 127 #define SUN4I_BACKEND_IYUVCTL_FBPS_VYUY                         (2 << 8)
 128 #define SUN4I_BACKEND_IYUVCTL_FBPS_YUYV                         (1 << 8)
 129 #define SUN4I_BACKEND_IYUVCTL_FBPS_UYVY                         (0 << 8)
 130 #define SUN4I_BACKEND_IYUVCTL_FBPS_VUYA                         (1 << 8)
 131 #define SUN4I_BACKEND_IYUVCTL_FBPS_AYUV                         (0 << 8)
 132 #define SUN4I_BACKEND_IYUVCTL_EN                        BIT(0)
 133
 134 #define SUN4I_BACKEND_IYUVADD_REG(c)            (0x930 + (0x4 * (c)))
 135
 136 #define SUN4I_BACKEND_IYUVLINEWIDTH_REG(c)      (0x940 + (0x4 * (c)))
 137
 138 #define SUN4I_BACKEND_YGCOEF_REG(c)             (0x950 + (0x4 * (c)))
 139 #define SUN4I_BACKEND_YGCONS_REG                0x95c
 140 #define SUN4I_BACKEND_URCOEF_REG(c)             (0x960 + (0x4 * (c)))
 141 #define SUN4I_BACKEND_URCONS_REG                0x96c
 142 #define SUN4I_BACKEND_VBCOEF_REG(c)             (0x970 + (0x4 * (c)))
 143 #define SUN4I_BACKEND_VBCONS_REG                0x97c
 144 #define SUN4I_BACKEND_KSCTL_REG                 0x980
 145 #define SUN4I_BACKEND_KSBKCOLOR_REG             0x984
 146 #define SUN4I_BACKEND_KSFSTLINEWIDTH_REG        0x988
 147 #define SUN4I_BACKEND_KSVSCAFCT_REG             0x98c
 148 #define SUN4I_BACKEND_KSHSCACOEF_REG(x)         (0x9a0 + (0x4 * (x)))
 149 #define SUN4I_BACKEND_OCCTL_REG                 0x9c0
 150 #define SUN4I_BACKEND_OCCTL_ENABLE                      BIT(0)
 151
 152 #define SUN4I_BACKEND_OCRCOEF_REG(x)            (0x9d0 + (0x4 * (x)))
 153 #define SUN4I_BACKEND_OCRCONS_REG               0x9dc
 154 #define SUN4I_BACKEND_OCGCOEF_REG(x)            (0x9e0 + (0x4 * (x)))
 155 #define SUN4I_BACKEND_OCGCONS_REG               0x9ec
 156 #define SUN4I_BACKEND_OCBCOEF_REG(x)            (0x9f0 + (0x4 * (x)))
 157 #define SUN4I_BACKEND_OCBCONS_REG               0x9fc
 158 #define SUN4I_BACKEND_SPRCOORCTL_REG(s)         (0xa00 + (0x4 * (s)))
 159 #define SUN4I_BACKEND_SPRATTCTL_REG(s)          (0xb00 + (0x4 * (s)))
 160 #define SUN4I_BACKEND_SPRADD_REG(s)             (0xc00 + (0x4 * (s)))
 161 #define SUN4I_BACKEND_SPRLINEWIDTH_REG(s)       (0xd00 + (0x4 * (s)))
 162
 163 #define SUN4I_BACKEND_SPRPALTAB_OFF             0x4000
 164 #define SUN4I_BACKEND_GAMMATAB_OFF              0x4400
 165 #define SUN4I_BACKEND_HWCPATTERN_OFF            0x4800
 166 #define SUN4I_BACKEND_HWCCOLORTAB_OFF           0x4c00
 167 #define SUN4I_BACKEND_PIPE_OFF(p)               (0x5000 + (0x400 * (p)))
 168
 169 #define SUN4I_BACKEND_NUM_LAYERS                4
 170 #define SUN4I_BACKEND_NUM_FRONTEND_LAYERS       1
 171 #define SUN4I_BACKEND_NUM_YUV_PLANES            1
 172
 173 struct sun4i_backend {
 174         struct sunxi_engine     engine;
 175         struct sun4i_frontend   *frontend;
 176
 177         struct reset_control    *reset;
 178
 179         struct clk              *bus_clk;
 180         struct clk              *mod_clk;
 181         struct clk              *ram_clk;
 182
 183         struct clk              *sat_clk;
 184         struct reset_control    *sat_reset;
 185
 186         /* Protects against races in the frontend teardown */
 187         spinlock_t              frontend_lock;
 188         bool                    frontend_teardown;
 189
 190         const struct sun4i_backend_quirks       *quirks;
 191 };
 192
 193 static inline struct sun4i_backend *
 194 engine_to_sun4i_backend(struct sunxi_engine *engine)
 195 {
 196         return container_of(engine, struct sun4i_backend, engine);
 197 }
 198
 199 void sun4i_backend_layer_enable(struct sun4i_backend *backend,
 200                                 int layer, bool enable);
 201 bool sun4i_backend_format_is_supported(uint32_t fmt, uint64_t modifier);
 202 int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
 203                                      int layer, struct drm_plane *plane);
 204 int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
 205                                        int layer, struct drm_plane *plane);
 206 int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend,
 207                                       int layer, struct drm_plane *plane);
 208 int sun4i_backend_update_layer_frontend(struct sun4i_backend *backend,
 209                                         int layer, uint32_t in_fmt);
 210 int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend,
 211                                     int layer, struct drm_plane *plane);
 212 void sun4i_backend_cleanup_layer(struct sun4i_backend *backend,
 213                                  int layer);
 214
 215 #endif /* _SUN4I_BACKEND_H_ */