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 DE2_BLD_BASE				0x1000
33 #define DE2_CH_BASE				0x2000
34 #define DE2_CH_SIZE				0x1000
35 
36 #define SUN8I_MIXER_BLEND_PIPE_CTL(base)	((base) + 0)
37 #define SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, x)	((base) + 0x4 + 0x10 * (x))
38 #define SUN8I_MIXER_BLEND_ATTR_INSIZE(base, x)	((base) + 0x8 + 0x10 * (x))
39 #define SUN8I_MIXER_BLEND_ATTR_COORD(base, x)	((base) + 0xc + 0x10 * (x))
40 #define SUN8I_MIXER_BLEND_ROUTE(base)		((base) + 0x80)
41 #define SUN8I_MIXER_BLEND_PREMULTIPLY(base)	((base) + 0x84)
42 #define SUN8I_MIXER_BLEND_BKCOLOR(base)		((base) + 0x88)
43 #define SUN8I_MIXER_BLEND_OUTSIZE(base)		((base) + 0x8c)
44 #define SUN8I_MIXER_BLEND_MODE(base, x)		((base) + 0x90 + 0x04 * (x))
45 #define SUN8I_MIXER_BLEND_CK_CTL(base)		((base) + 0xb0)
46 #define SUN8I_MIXER_BLEND_CK_CFG(base)		((base) + 0xb4)
47 #define SUN8I_MIXER_BLEND_CK_MAX(base, x)	((base) + 0xc0 + 0x04 * (x))
48 #define SUN8I_MIXER_BLEND_CK_MIN(base, x)	((base) + 0xe0 + 0x04 * (x))
49 #define SUN8I_MIXER_BLEND_OUTCTL(base)		((base) + 0xfc)
50 
51 #define SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK	GENMASK(12, 8)
52 #define SUN8I_MIXER_BLEND_PIPE_CTL_EN(pipe)	BIT(8 + pipe)
53 #define SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(pipe)	BIT(pipe)
54 /* colors are always in AARRGGBB format */
55 #define SUN8I_MIXER_BLEND_COLOR_BLACK		0xff000000
56 /* The following numbers are some still unknown magic numbers */
57 #define SUN8I_MIXER_BLEND_MODE_DEF		0x03010301
58 
59 #define SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(n)	(0xf << ((n) << 2))
60 #define SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(n)	((n) << 2)
61 
62 #define SUN8I_MIXER_BLEND_OUTCTL_INTERLACED	BIT(1)
63 
64 #define SUN8I_MIXER_FBFMT_ARGB8888	0
65 #define SUN8I_MIXER_FBFMT_ABGR8888	1
66 #define SUN8I_MIXER_FBFMT_RGBA8888	2
67 #define SUN8I_MIXER_FBFMT_BGRA8888	3
68 #define SUN8I_MIXER_FBFMT_XRGB8888	4
69 #define SUN8I_MIXER_FBFMT_XBGR8888	5
70 #define SUN8I_MIXER_FBFMT_RGBX8888	6
71 #define SUN8I_MIXER_FBFMT_BGRX8888	7
72 #define SUN8I_MIXER_FBFMT_RGB888	8
73 #define SUN8I_MIXER_FBFMT_BGR888	9
74 #define SUN8I_MIXER_FBFMT_RGB565	10
75 #define SUN8I_MIXER_FBFMT_BGR565	11
76 #define SUN8I_MIXER_FBFMT_ARGB4444	12
77 #define SUN8I_MIXER_FBFMT_ABGR4444	13
78 #define SUN8I_MIXER_FBFMT_RGBA4444	14
79 #define SUN8I_MIXER_FBFMT_BGRA4444	15
80 #define SUN8I_MIXER_FBFMT_ARGB1555	16
81 #define SUN8I_MIXER_FBFMT_ABGR1555	17
82 #define SUN8I_MIXER_FBFMT_RGBA5551	18
83 #define SUN8I_MIXER_FBFMT_BGRA5551	19
84 
85 #define SUN8I_MIXER_FBFMT_YUYV		0
86 #define SUN8I_MIXER_FBFMT_UYVY		1
87 #define SUN8I_MIXER_FBFMT_YVYU		2
88 #define SUN8I_MIXER_FBFMT_VYUY		3
89 #define SUN8I_MIXER_FBFMT_NV16		4
90 #define SUN8I_MIXER_FBFMT_NV61		5
91 #define SUN8I_MIXER_FBFMT_YUV422	6
92 /* format 7 doesn't exist */
93 #define SUN8I_MIXER_FBFMT_NV12		8
94 #define SUN8I_MIXER_FBFMT_NV21		9
95 #define SUN8I_MIXER_FBFMT_YUV420	10
96 /* format 11 doesn't exist */
97 /* format 12 is semi-planar YUV411 UVUV */
98 /* format 13 is semi-planar YUV411 VUVU */
99 #define SUN8I_MIXER_FBFMT_YUV411	14
100 
101 /*
102  * These sub-engines are still unknown now, the EN registers are here only to
103  * be used to disable these sub-engines.
104  */
105 #define SUN8I_MIXER_FCE_EN			0xa0000
106 #define SUN8I_MIXER_BWS_EN			0xa2000
107 #define SUN8I_MIXER_LTI_EN			0xa4000
108 #define SUN8I_MIXER_PEAK_EN			0xa6000
109 #define SUN8I_MIXER_ASE_EN			0xa8000
110 #define SUN8I_MIXER_FCC_EN			0xaa000
111 #define SUN8I_MIXER_DCSC_EN			0xb0000
112 
113 struct de2_fmt_info {
114 	u32			drm_fmt;
115 	u32			de2_fmt;
116 	bool			rgb;
117 	enum sun8i_csc_mode	csc;
118 };
119 
120 /**
121  * struct sun8i_mixer_cfg - mixer HW configuration
122  * @vi_num: number of VI channels
123  * @ui_num: number of UI channels
124  * @scaler_mask: bitmask which tells which channel supports scaling
125  *	First, scaler supports for VI channels is defined and after that, scaler
126  *	support for UI channels. For example, if mixer has 2 VI channels without
127  *	scaler and 2 UI channels with scaler, bitmask would be 0xC.
128  * @ccsc: select set of CCSC base addresses
129  *	Set value to 0 if this is first mixer or second mixer with VEP support.
130  *	Set value to 1 if this is second mixer without VEP support. Other values
131  *	are invalid.
132  * @mod_rate: module clock rate that needs to be set in order to have
133  *	a functional block.
134  */
135 struct sun8i_mixer_cfg {
136 	int		vi_num;
137 	int		ui_num;
138 	int		scaler_mask;
139 	int		ccsc;
140 	unsigned long	mod_rate;
141 };
142 
143 struct sun8i_mixer {
144 	struct sunxi_engine		engine;
145 
146 	const struct sun8i_mixer_cfg	*cfg;
147 
148 	struct reset_control		*reset;
149 
150 	struct clk			*bus_clk;
151 	struct clk			*mod_clk;
152 };
153 
154 static inline struct sun8i_mixer *
155 engine_to_sun8i_mixer(struct sunxi_engine *engine)
156 {
157 	return container_of(engine, struct sun8i_mixer, engine);
158 }
159 
160 static inline u32
161 sun8i_blender_base(struct sun8i_mixer *mixer)
162 {
163 	return DE2_BLD_BASE;
164 }
165 
166 static inline u32
167 sun8i_channel_base(struct sun8i_mixer *mixer, int channel)
168 {
169 	return DE2_CH_BASE + channel * DE2_CH_SIZE;
170 }
171 
172 const struct de2_fmt_info *sun8i_mixer_format_info(u32 format);
173 #endif /* _SUN8I_MIXER_H_ */
174