tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
70struct clk;
71struct device_node;
72struct drm_plane;
73struct regmap;
74struct reset_control;
75
76struct 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
88extern const struct of_device_id sun4i_frontend_of_table[];
89
90int sun4i_frontend_init(struct sun4i_frontend *frontend);
91void sun4i_frontend_exit(struct sun4i_frontend *frontend);
92int sun4i_frontend_enable(struct sun4i_frontend *frontend);
93
94void sun4i_frontend_update_buffer(struct sun4i_frontend *frontend,
95 struct drm_plane *plane);
96void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,
97 struct drm_plane *plane);
98int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
99 struct drm_plane *plane, uint32_t out_fmt);
100bool sun4i_frontend_format_is_supported(uint32_t fmt, uint64_t modifier);
101
102#endif /* _SUN4I_FRONTEND_H_ */