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_PACKED (1 << 8) 30 #define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB (5 << 4) 31 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_BGRX 0 32 #define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB 1 33 34 #define SUN4I_FRONTEND_OUTPUT_FMT_REG 0x05c 35 #define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_BGRX8888 1 36 #define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_XRGB8888 2 37 38 #define SUN4I_FRONTEND_CH0_INSIZE_REG 0x100 39 #define SUN4I_FRONTEND_INSIZE(h, w) ((((h) - 1) << 16) | (((w) - 1))) 40 41 #define SUN4I_FRONTEND_CH0_OUTSIZE_REG 0x104 42 #define SUN4I_FRONTEND_OUTSIZE(h, w) ((((h) - 1) << 16) | (((w) - 1))) 43 44 #define SUN4I_FRONTEND_CH0_HORZFACT_REG 0x108 45 #define SUN4I_FRONTEND_HORZFACT(i, f) (((i) << 16) | (f)) 46 47 #define SUN4I_FRONTEND_CH0_VERTFACT_REG 0x10c 48 #define SUN4I_FRONTEND_VERTFACT(i, f) (((i) << 16) | (f)) 49 50 #define SUN4I_FRONTEND_CH0_HORZPHASE_REG 0x110 51 #define SUN4I_FRONTEND_CH0_VERTPHASE0_REG 0x114 52 #define SUN4I_FRONTEND_CH0_VERTPHASE1_REG 0x118 53 54 #define SUN4I_FRONTEND_CH1_INSIZE_REG 0x200 55 #define SUN4I_FRONTEND_CH1_OUTSIZE_REG 0x204 56 #define SUN4I_FRONTEND_CH1_HORZFACT_REG 0x208 57 #define SUN4I_FRONTEND_CH1_VERTFACT_REG 0x20c 58 59 #define SUN4I_FRONTEND_CH1_HORZPHASE_REG 0x210 60 #define SUN4I_FRONTEND_CH1_VERTPHASE0_REG 0x214 61 #define SUN4I_FRONTEND_CH1_VERTPHASE1_REG 0x218 62 63 #define SUN4I_FRONTEND_CH0_HORZCOEF0_REG(i) (0x400 + i * 4) 64 #define SUN4I_FRONTEND_CH0_HORZCOEF1_REG(i) (0x480 + i * 4) 65 #define SUN4I_FRONTEND_CH0_VERTCOEF_REG(i) (0x500 + i * 4) 66 #define SUN4I_FRONTEND_CH1_HORZCOEF0_REG(i) (0x600 + i * 4) 67 #define SUN4I_FRONTEND_CH1_HORZCOEF1_REG(i) (0x680 + i * 4) 68 #define SUN4I_FRONTEND_CH1_VERTCOEF_REG(i) (0x700 + i * 4) 69 70 struct clk; 71 struct device_node; 72 struct drm_plane; 73 struct regmap; 74 struct reset_control; 75 76 struct sun4i_frontend { 77 struct list_head list; 78 struct device *dev; 79 struct device_node *node; 80 81 struct clk *bus_clk; 82 struct clk *mod_clk; 83 struct clk *ram_clk; 84 struct regmap *regs; 85 struct reset_control *reset; 86 }; 87 88 extern const struct of_device_id sun4i_frontend_of_table[]; 89 90 int sun4i_frontend_init(struct sun4i_frontend *frontend); 91 void sun4i_frontend_exit(struct sun4i_frontend *frontend); 92 int sun4i_frontend_enable(struct sun4i_frontend *frontend); 93 94 void sun4i_frontend_update_buffer(struct sun4i_frontend *frontend, 95 struct drm_plane *plane); 96 void sun4i_frontend_update_coord(struct sun4i_frontend *frontend, 97 struct drm_plane *plane); 98 int sun4i_frontend_update_formats(struct sun4i_frontend *frontend, 99 struct drm_plane *plane, uint32_t out_fmt); 100 bool sun4i_frontend_format_is_supported(uint32_t fmt); 101 102 #endif /* _SUN4I_FRONTEND_H_ */ 103