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0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * Copyright (C) 2015 Free Electrons
0004  * Copyright (C) 2015 NextThing Co
0005  *
0006  * Maxime Ripard <maxime.ripard@free-electrons.com>
0007  */
0008 
0009 #ifndef _SUN4I_BACKEND_H_
0010 #define _SUN4I_BACKEND_H_
0011 
0012 #include <linux/clk.h>
0013 #include <linux/list.h>
0014 #include <linux/of.h>
0015 #include <linux/regmap.h>
0016 #include <linux/reset.h>
0017 
0018 #include "sunxi_engine.h"
0019 
0020 #define SUN4I_BACKEND_MODCTL_REG        0x800
0021 #define SUN4I_BACKEND_MODCTL_LINE_SEL           BIT(29)
0022 #define SUN4I_BACKEND_MODCTL_ITLMOD_EN          BIT(28)
0023 #define SUN4I_BACKEND_MODCTL_OUT_SEL            GENMASK(22, 20)
0024 #define SUN4I_BACKEND_MODCTL_OUT_LCD0               (0 << 20)
0025 #define SUN4I_BACKEND_MODCTL_OUT_LCD1               (1 << 20)
0026 #define SUN4I_BACKEND_MODCTL_OUT_FE0                (6 << 20)
0027 #define SUN4I_BACKEND_MODCTL_OUT_FE1                (7 << 20)
0028 #define SUN4I_BACKEND_MODCTL_HWC_EN         BIT(16)
0029 #define SUN4I_BACKEND_MODCTL_LAY_EN(l)          BIT(8 + l)
0030 #define SUN4I_BACKEND_MODCTL_OCSC_EN            BIT(5)
0031 #define SUN4I_BACKEND_MODCTL_DFLK_EN            BIT(4)
0032 #define SUN4I_BACKEND_MODCTL_DLP_START_CTL      BIT(2)
0033 #define SUN4I_BACKEND_MODCTL_START_CTL          BIT(1)
0034 #define SUN4I_BACKEND_MODCTL_DEBE_EN            BIT(0)
0035 
0036 #define SUN4I_BACKEND_BACKCOLOR_REG     0x804
0037 #define SUN4I_BACKEND_BACKCOLOR(r, g, b)        (((r) << 16) | ((g) << 8) | (b))
0038 
0039 #define SUN4I_BACKEND_DISSIZE_REG       0x808
0040 #define SUN4I_BACKEND_DISSIZE(w, h)         (((((h) - 1) & 0xffff) << 16) | \
0041                              (((w) - 1) & 0xffff))
0042 
0043 #define SUN4I_BACKEND_LAYSIZE_REG(l)        (0x810 + (0x4 * (l)))
0044 #define SUN4I_BACKEND_LAYSIZE(w, h)         (((((h) - 1) & 0x1fff) << 16) | \
0045                              (((w) - 1) & 0x1fff))
0046 
0047 #define SUN4I_BACKEND_LAYCOOR_REG(l)        (0x820 + (0x4 * (l)))
0048 #define SUN4I_BACKEND_LAYCOOR(x, y)         ((((u32)(y) & 0xffff) << 16) | \
0049                              ((u32)(x) & 0xffff))
0050 
0051 #define SUN4I_BACKEND_LAYLINEWIDTH_REG(l)   (0x840 + (0x4 * (l)))
0052 
0053 #define SUN4I_BACKEND_LAYFB_L32ADD_REG(l)   (0x850 + (0x4 * (l)))
0054 
0055 #define SUN4I_BACKEND_LAYFB_H4ADD_REG       0x860
0056 #define SUN4I_BACKEND_LAYFB_H4ADD_MSK(l)        GENMASK(3 + ((l) * 8), (l) * 8)
0057 #define SUN4I_BACKEND_LAYFB_H4ADD(l, val)       ((val) << ((l) * 8))
0058 
0059 #define SUN4I_BACKEND_REGBUFFCTL_REG        0x870
0060 #define SUN4I_BACKEND_REGBUFFCTL_AUTOLOAD_DIS       BIT(1)
0061 #define SUN4I_BACKEND_REGBUFFCTL_LOADCTL        BIT(0)
0062 
0063 #define SUN4I_BACKEND_CKMAX_REG         0x880
0064 #define SUN4I_BACKEND_CKMIN_REG         0x884
0065 #define SUN4I_BACKEND_CKCFG_REG         0x888
0066 #define SUN4I_BACKEND_ATTCTL_REG0(l)        (0x890 + (0x4 * (l)))
0067 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_MASK GENMASK(31, 24)
0068 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA(x)       ((x) << 24)
0069 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL_MASK  BIT(15)
0070 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL(x)        ((x) << 15)
0071 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL_MASK   GENMASK(11, 10)
0072 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL(x)         ((x) << 10)
0073 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_YUVEN     BIT(2)
0074 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_VDOEN     BIT(1)
0075 #define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_EN   BIT(0)
0076 
0077 #define SUN4I_BACKEND_ATTCTL_REG1(l)        (0x8a0 + (0x4 * (l)))
0078 #define SUN4I_BACKEND_ATTCTL_REG1_LAY_HSCAFCT       GENMASK(15, 14)
0079 #define SUN4I_BACKEND_ATTCTL_REG1_LAY_WSCAFCT       GENMASK(13, 12)
0080 #define SUN4I_BACKEND_ATTCTL_REG1_LAY_FBFMT     GENMASK(11, 8)
0081 #define SUN4I_BACKEND_LAY_FBFMT_1BPP                (0 << 8)
0082 #define SUN4I_BACKEND_LAY_FBFMT_2BPP                (1 << 8)
0083 #define SUN4I_BACKEND_LAY_FBFMT_4BPP                (2 << 8)
0084 #define SUN4I_BACKEND_LAY_FBFMT_8BPP                (3 << 8)
0085 #define SUN4I_BACKEND_LAY_FBFMT_RGB655              (4 << 8)
0086 #define SUN4I_BACKEND_LAY_FBFMT_RGB565              (5 << 8)
0087 #define SUN4I_BACKEND_LAY_FBFMT_RGB556              (6 << 8)
0088 #define SUN4I_BACKEND_LAY_FBFMT_ARGB1555            (7 << 8)
0089 #define SUN4I_BACKEND_LAY_FBFMT_RGBA5551            (8 << 8)
0090 #define SUN4I_BACKEND_LAY_FBFMT_XRGB8888            (9 << 8)
0091 #define SUN4I_BACKEND_LAY_FBFMT_ARGB8888            (10 << 8)
0092 #define SUN4I_BACKEND_LAY_FBFMT_RGB888              (11 << 8)
0093 #define SUN4I_BACKEND_LAY_FBFMT_ARGB4444            (12 << 8)
0094 #define SUN4I_BACKEND_LAY_FBFMT_RGBA4444            (13 << 8)
0095 
0096 #define SUN4I_BACKEND_DLCDPCTL_REG      0x8b0
0097 #define SUN4I_BACKEND_DLCDPFRMBUF_ADDRCTL_REG   0x8b4
0098 #define SUN4I_BACKEND_DLCDPCOOR_REG0        0x8b8
0099 #define SUN4I_BACKEND_DLCDPCOOR_REG1        0x8bc
0100 
0101 #define SUN4I_BACKEND_INT_EN_REG        0x8c0
0102 #define SUN4I_BACKEND_INT_FLAG_REG      0x8c4
0103 #define SUN4I_BACKEND_REG_LOAD_FINISHED         BIT(1)
0104 
0105 #define SUN4I_BACKEND_HWCCTL_REG        0x8d8
0106 #define SUN4I_BACKEND_HWCFBCTL_REG      0x8e0
0107 #define SUN4I_BACKEND_WBCTL_REG         0x8f0
0108 #define SUN4I_BACKEND_WBADD_REG         0x8f4
0109 #define SUN4I_BACKEND_WBLINEWIDTH_REG       0x8f8
0110 #define SUN4I_BACKEND_SPREN_REG         0x900
0111 #define SUN4I_BACKEND_SPRFMTCTL_REG     0x908
0112 #define SUN4I_BACKEND_SPRALPHACTL_REG       0x90c
0113 
0114 #define SUN4I_BACKEND_IYUVCTL_REG       0x920
0115 #define SUN4I_BACKEND_IYUVCTL_FBFMT_MASK        GENMASK(14, 12)
0116 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV444       (4 << 12)
0117 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV422       (3 << 12)
0118 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV444       (2 << 12)
0119 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV222       (1 << 12)
0120 #define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV111       (0 << 12)
0121 #define SUN4I_BACKEND_IYUVCTL_FBPS_MASK         GENMASK(9, 8)
0122 #define SUN4I_BACKEND_IYUVCTL_FBPS_YVYU             (3 << 8)
0123 #define SUN4I_BACKEND_IYUVCTL_FBPS_VYUY             (2 << 8)
0124 #define SUN4I_BACKEND_IYUVCTL_FBPS_YUYV             (1 << 8)
0125 #define SUN4I_BACKEND_IYUVCTL_FBPS_UYVY             (0 << 8)
0126 #define SUN4I_BACKEND_IYUVCTL_FBPS_VUYA             (1 << 8)
0127 #define SUN4I_BACKEND_IYUVCTL_FBPS_AYUV             (0 << 8)
0128 #define SUN4I_BACKEND_IYUVCTL_EN            BIT(0)
0129 
0130 #define SUN4I_BACKEND_IYUVADD_REG(c)        (0x930 + (0x4 * (c)))
0131 
0132 #define SUN4I_BACKEND_IYUVLINEWIDTH_REG(c)  (0x940 + (0x4 * (c)))
0133 
0134 #define SUN4I_BACKEND_YGCOEF_REG(c)     (0x950 + (0x4 * (c)))
0135 #define SUN4I_BACKEND_YGCONS_REG        0x95c
0136 #define SUN4I_BACKEND_URCOEF_REG(c)     (0x960 + (0x4 * (c)))
0137 #define SUN4I_BACKEND_URCONS_REG        0x96c
0138 #define SUN4I_BACKEND_VBCOEF_REG(c)     (0x970 + (0x4 * (c)))
0139 #define SUN4I_BACKEND_VBCONS_REG        0x97c
0140 #define SUN4I_BACKEND_KSCTL_REG         0x980
0141 #define SUN4I_BACKEND_KSBKCOLOR_REG     0x984
0142 #define SUN4I_BACKEND_KSFSTLINEWIDTH_REG    0x988
0143 #define SUN4I_BACKEND_KSVSCAFCT_REG     0x98c
0144 #define SUN4I_BACKEND_KSHSCACOEF_REG(x)     (0x9a0 + (0x4 * (x)))
0145 #define SUN4I_BACKEND_OCCTL_REG         0x9c0
0146 #define SUN4I_BACKEND_OCCTL_ENABLE          BIT(0)
0147 
0148 #define SUN4I_BACKEND_OCRCOEF_REG(x)        (0x9d0 + (0x4 * (x)))
0149 #define SUN4I_BACKEND_OCRCONS_REG       0x9dc
0150 #define SUN4I_BACKEND_OCGCOEF_REG(x)        (0x9e0 + (0x4 * (x)))
0151 #define SUN4I_BACKEND_OCGCONS_REG       0x9ec
0152 #define SUN4I_BACKEND_OCBCOEF_REG(x)        (0x9f0 + (0x4 * (x)))
0153 #define SUN4I_BACKEND_OCBCONS_REG       0x9fc
0154 #define SUN4I_BACKEND_SPRCOORCTL_REG(s)     (0xa00 + (0x4 * (s)))
0155 #define SUN4I_BACKEND_SPRATTCTL_REG(s)      (0xb00 + (0x4 * (s)))
0156 #define SUN4I_BACKEND_SPRADD_REG(s)     (0xc00 + (0x4 * (s)))
0157 #define SUN4I_BACKEND_SPRLINEWIDTH_REG(s)   (0xd00 + (0x4 * (s)))
0158 
0159 #define SUN4I_BACKEND_SPRPALTAB_OFF     0x4000
0160 #define SUN4I_BACKEND_GAMMATAB_OFF      0x4400
0161 #define SUN4I_BACKEND_HWCPATTERN_OFF        0x4800
0162 #define SUN4I_BACKEND_HWCCOLORTAB_OFF       0x4c00
0163 #define SUN4I_BACKEND_PIPE_OFF(p)       (0x5000 + (0x400 * (p)))
0164 
0165 #define SUN4I_BACKEND_NUM_LAYERS        4
0166 #define SUN4I_BACKEND_NUM_FRONTEND_LAYERS   1
0167 #define SUN4I_BACKEND_NUM_YUV_PLANES        1
0168 
0169 struct sun4i_backend {
0170     struct sunxi_engine engine;
0171     struct sun4i_frontend   *frontend;
0172 
0173     struct reset_control    *reset;
0174 
0175     struct clk      *bus_clk;
0176     struct clk      *mod_clk;
0177     struct clk      *ram_clk;
0178 
0179     struct clk      *sat_clk;
0180     struct reset_control    *sat_reset;
0181 
0182     /* Protects against races in the frontend teardown */
0183     spinlock_t      frontend_lock;
0184     bool            frontend_teardown;
0185 
0186     const struct sun4i_backend_quirks   *quirks;
0187 };
0188 
0189 static inline struct sun4i_backend *
0190 engine_to_sun4i_backend(struct sunxi_engine *engine)
0191 {
0192     return container_of(engine, struct sun4i_backend, engine);
0193 }
0194 
0195 void sun4i_backend_layer_enable(struct sun4i_backend *backend,
0196                 int layer, bool enable);
0197 bool sun4i_backend_format_is_supported(uint32_t fmt, uint64_t modifier);
0198 int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
0199                      int layer, struct drm_plane *plane);
0200 int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
0201                        int layer, struct drm_plane *plane);
0202 int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend,
0203                       int layer, struct drm_plane *plane);
0204 int sun4i_backend_update_layer_frontend(struct sun4i_backend *backend,
0205                     int layer, uint32_t in_fmt);
0206 int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend,
0207                     int layer, struct drm_plane *plane);
0208 void sun4i_backend_cleanup_layer(struct sun4i_backend *backend,
0209                  int layer);
0210 
0211 #endif /* _SUN4I_BACKEND_H_ */