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 bool sun4i_frontend_format_is_supported(uint32_t fmt); 99 100 #endif /* _SUN4I_FRONTEND_H_ */ 101