1 /*
2  * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of
7  * the License, or (at your option) any later version.
8  */
9 
10 #ifndef _SUN8I_MIXER_H_
11 #define _SUN8I_MIXER_H_
12 
13 #include <linux/clk.h>
14 #include <linux/regmap.h>
15 #include <linux/reset.h>
16 
17 #include "sun8i_csc.h"
18 #include "sunxi_engine.h"
19 
20 #define SUN8I_MIXER_SIZE(w, h)			(((h) - 1) << 16 | ((w) - 1))
21 #define SUN8I_MIXER_COORD(x, y)			((y) << 16 | (x))
22 
23 #define SUN8I_MIXER_GLOBAL_CTL			0x0
24 #define SUN8I_MIXER_GLOBAL_STATUS		0x4
25 #define SUN8I_MIXER_GLOBAL_DBUFF		0x8
26 #define SUN8I_MIXER_GLOBAL_SIZE			0xc
27 
28 #define SUN8I_MIXER_GLOBAL_CTL_RT_EN		BIT(0)
29 
30 #define SUN8I_MIXER_GLOBAL_DBUFF_ENABLE		BIT(0)
31 
32 #define SUN8I_MIXER_BLEND_PIPE_CTL		0x1000
33 #define SUN8I_MIXER_BLEND_ATTR_FCOLOR(x)	(0x1004 + 0x10 * (x) + 0x0)
34 #define SUN8I_MIXER_BLEND_ATTR_INSIZE(x)	(0x1004 + 0x10 * (x) + 0x4)
35 #define SUN8I_MIXER_BLEND_ATTR_COORD(x)		(0x1004 + 0x10 * (x) + 0x8)
36 #define SUN8I_MIXER_BLEND_ROUTE			0x1080
37 #define SUN8I_MIXER_BLEND_PREMULTIPLY		0x1084
38 #define SUN8I_MIXER_BLEND_BKCOLOR		0x1088
39 #define SUN8I_MIXER_BLEND_OUTSIZE		0x108c
40 #define SUN8I_MIXER_BLEND_MODE(x)		(0x1090 + 0x04 * (x))
41 #define SUN8I_MIXER_BLEND_CK_CTL		0x10b0
42 #define SUN8I_MIXER_BLEND_CK_CFG		0x10b4
43 #define SUN8I_MIXER_BLEND_CK_MAX(x)		(0x10c0 + 0x04 * (x))
44 #define SUN8I_MIXER_BLEND_CK_MIN(x)		(0x10e0 + 0x04 * (x))
45 #define SUN8I_MIXER_BLEND_OUTCTL		0x10fc
46 
47 #define SUN8I_MIXER_BLEND_PIPE_CTL_EN(pipe)	BIT(8 + pipe)
48 #define SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(pipe)	BIT(pipe)
49 /* colors are always in AARRGGBB format */
50 #define SUN8I_MIXER_BLEND_COLOR_BLACK		0xff000000
51 /* The following numbers are some still unknown magic numbers */
52 #define SUN8I_MIXER_BLEND_MODE_DEF		0x03010301
53 
54 #define SUN8I_MIXER_BLEND_OUTCTL_INTERLACED	BIT(1)
55 
56 #define SUN8I_MIXER_FBFMT_ARGB8888	0
57 #define SUN8I_MIXER_FBFMT_ABGR8888	1
58 #define SUN8I_MIXER_FBFMT_RGBA8888	2
59 #define SUN8I_MIXER_FBFMT_BGRA8888	3
60 #define SUN8I_MIXER_FBFMT_XRGB8888	4
61 #define SUN8I_MIXER_FBFMT_XBGR8888	5
62 #define SUN8I_MIXER_FBFMT_RGBX8888	6
63 #define SUN8I_MIXER_FBFMT_BGRX8888	7
64 #define SUN8I_MIXER_FBFMT_RGB888	8
65 #define SUN8I_MIXER_FBFMT_BGR888	9
66 #define SUN8I_MIXER_FBFMT_RGB565	10
67 #define SUN8I_MIXER_FBFMT_BGR565	11
68 #define SUN8I_MIXER_FBFMT_ARGB4444	12
69 #define SUN8I_MIXER_FBFMT_ABGR4444	13
70 #define SUN8I_MIXER_FBFMT_RGBA4444	14
71 #define SUN8I_MIXER_FBFMT_BGRA4444	15
72 #define SUN8I_MIXER_FBFMT_ARGB1555	16
73 #define SUN8I_MIXER_FBFMT_ABGR1555	17
74 #define SUN8I_MIXER_FBFMT_RGBA5551	18
75 #define SUN8I_MIXER_FBFMT_BGRA5551	19
76 
77 #define SUN8I_MIXER_FBFMT_YUYV		0
78 #define SUN8I_MIXER_FBFMT_UYVY		1
79 #define SUN8I_MIXER_FBFMT_YVYU		2
80 #define SUN8I_MIXER_FBFMT_VYUY		3
81 #define SUN8I_MIXER_FBFMT_NV16		4
82 #define SUN8I_MIXER_FBFMT_NV61		5
83 #define SUN8I_MIXER_FBFMT_YUV422	6
84 /* format 7 doesn't exist */
85 #define SUN8I_MIXER_FBFMT_NV12		8
86 #define SUN8I_MIXER_FBFMT_NV21		9
87 #define SUN8I_MIXER_FBFMT_YUV420	10
88 /* format 11 doesn't exist */
89 /* format 12 is semi-planar YUV411 UVUV */
90 /* format 13 is semi-planar YUV411 VUVU */
91 #define SUN8I_MIXER_FBFMT_YUV411	14
92 
93 /*
94  * These sub-engines are still unknown now, the EN registers are here only to
95  * be used to disable these sub-engines.
96  */
97 #define SUN8I_MIXER_FCE_EN			0xa0000
98 #define SUN8I_MIXER_BWS_EN			0xa2000
99 #define SUN8I_MIXER_LTI_EN			0xa4000
100 #define SUN8I_MIXER_PEAK_EN			0xa6000
101 #define SUN8I_MIXER_ASE_EN			0xa8000
102 #define SUN8I_MIXER_FCC_EN			0xaa000
103 #define SUN8I_MIXER_DCSC_EN			0xb0000
104 
105 struct de2_fmt_info {
106 	u32			drm_fmt;
107 	u32			de2_fmt;
108 	bool			rgb;
109 	enum sun8i_csc_mode	csc;
110 };
111 
112 /**
113  * struct sun8i_mixer_cfg - mixer HW configuration
114  * @vi_num: number of VI channels
115  * @ui_num: number of UI channels
116  * @scaler_mask: bitmask which tells which channel supports scaling
117  *	First, scaler supports for VI channels is defined and after that, scaler
118  *	support for UI channels. For example, if mixer has 2 VI channels without
119  *	scaler and 2 UI channels with scaler, bitmask would be 0xC.
120  * @ccsc: select set of CCSC base addresses
121  *	Set value to 0 if this is first mixer or second mixer with VEP support.
122  *	Set value to 1 if this is second mixer without VEP support. Other values
123  *	are invalid.
124  * @mod_rate: module clock rate that needs to be set in order to have
125  *	a functional block.
126  */
127 struct sun8i_mixer_cfg {
128 	int		vi_num;
129 	int		ui_num;
130 	int		scaler_mask;
131 	int		ccsc;
132 	unsigned long	mod_rate;
133 };
134 
135 struct sun8i_mixer {
136 	struct sunxi_engine		engine;
137 
138 	const struct sun8i_mixer_cfg	*cfg;
139 
140 	struct reset_control		*reset;
141 
142 	struct clk			*bus_clk;
143 	struct clk			*mod_clk;
144 };
145 
146 static inline struct sun8i_mixer *
147 engine_to_sun8i_mixer(struct sunxi_engine *engine)
148 {
149 	return container_of(engine, struct sun8i_mixer, engine);
150 }
151 
152 const struct de2_fmt_info *sun8i_mixer_format_info(u32 format);
153 #endif /* _SUN8I_MIXER_H_ */
154