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
68struct clk;
69struct device_node;
70struct drm_plane;
71struct regmap;
72struct reset_control;
73
74struct 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
86extern const struct of_device_id sun4i_frontend_of_table[];
87
88int sun4i_frontend_init(struct sun4i_frontend *frontend);
89void sun4i_frontend_exit(struct sun4i_frontend *frontend);
90int sun4i_frontend_enable(struct sun4i_frontend *frontend);
91
92void sun4i_frontend_update_buffer(struct sun4i_frontend *frontend,
93				  struct drm_plane *plane);
94void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,
95				 struct drm_plane *plane);
96int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
97				  struct drm_plane *plane, uint32_t out_fmt);
98
99#endif /* _SUN4I_FRONTEND_H_ */