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 "sunxi_engine.h"
18 
19 #define SUN8I_MIXER_SIZE(w, h)			(((h) - 1) << 16 | ((w) - 1))
20 #define SUN8I_MIXER_COORD(x, y)			((y) << 16 | (x))
21 
22 #define SUN8I_MIXER_GLOBAL_CTL			0x0
23 #define SUN8I_MIXER_GLOBAL_STATUS		0x4
24 #define SUN8I_MIXER_GLOBAL_DBUFF		0x8
25 #define SUN8I_MIXER_GLOBAL_SIZE			0xc
26 
27 #define SUN8I_MIXER_GLOBAL_CTL_RT_EN		BIT(0)
28 
29 #define SUN8I_MIXER_GLOBAL_DBUFF_ENABLE		BIT(0)
30 
31 #define SUN8I_MIXER_BLEND_PIPE_CTL		0x1000
32 #define SUN8I_MIXER_BLEND_ATTR_FCOLOR(x)	(0x1004 + 0x10 * (x) + 0x0)
33 #define SUN8I_MIXER_BLEND_ATTR_INSIZE(x)	(0x1004 + 0x10 * (x) + 0x4)
34 #define SUN8I_MIXER_BLEND_ATTR_COORD(x)		(0x1004 + 0x10 * (x) + 0x8)
35 #define SUN8I_MIXER_BLEND_ROUTE			0x1080
36 #define SUN8I_MIXER_BLEND_PREMULTIPLY		0x1084
37 #define SUN8I_MIXER_BLEND_BKCOLOR		0x1088
38 #define SUN8I_MIXER_BLEND_OUTSIZE		0x108c
39 #define SUN8I_MIXER_BLEND_MODE(x)		(0x1090 + 0x04 * (x))
40 #define SUN8I_MIXER_BLEND_CK_CTL		0x10b0
41 #define SUN8I_MIXER_BLEND_CK_CFG		0x10b4
42 #define SUN8I_MIXER_BLEND_CK_MAX(x)		(0x10c0 + 0x04 * (x))
43 #define SUN8I_MIXER_BLEND_CK_MIN(x)		(0x10e0 + 0x04 * (x))
44 #define SUN8I_MIXER_BLEND_OUTCTL		0x10fc
45 
46 #define SUN8I_MIXER_BLEND_PIPE_CTL_EN(pipe)	BIT(8 + pipe)
47 #define SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(pipe)	BIT(pipe)
48 /* colors are always in AARRGGBB format */
49 #define SUN8I_MIXER_BLEND_COLOR_BLACK		0xff000000
50 /* The following numbers are some still unknown magic numbers */
51 #define SUN8I_MIXER_BLEND_MODE_DEF		0x03010301
52 
53 #define SUN8I_MIXER_BLEND_OUTCTL_INTERLACED	BIT(1)
54 
55 /*
56  * VI channels are not used now, but the support of them may be introduced in
57  * the future.
58  */
59 
60 #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR(ch, layer) \
61 			(0x2000 + 0x1000 * (ch) + 0x20 * (layer) + 0x0)
62 #define SUN8I_MIXER_CHAN_UI_LAYER_SIZE(ch, layer) \
63 			(0x2000 + 0x1000 * (ch) + 0x20 * (layer) + 0x4)
64 #define SUN8I_MIXER_CHAN_UI_LAYER_COORD(ch, layer) \
65 			(0x2000 + 0x1000 * (ch) + 0x20 * (layer) + 0x8)
66 #define SUN8I_MIXER_CHAN_UI_LAYER_PITCH(ch, layer) \
67 			(0x2000 + 0x1000 * (ch) + 0x20 * (layer) + 0xc)
68 #define SUN8I_MIXER_CHAN_UI_LAYER_TOP_LADDR(ch, layer) \
69 			(0x2000 + 0x1000 * (ch) + 0x20 * (layer) + 0x10)
70 #define SUN8I_MIXER_CHAN_UI_LAYER_BOT_LADDR(ch, layer) \
71 			(0x2000 + 0x1000 * (ch) + 0x20 * (layer) + 0x14)
72 #define SUN8I_MIXER_CHAN_UI_LAYER_FCOLOR(ch, layer) \
73 			(0x2000 + 0x1000 * (ch) + 0x20 * (layer) + 0x18)
74 #define SUN8I_MIXER_CHAN_UI_TOP_HADDR(ch)	(0x2000 + 0x1000 * (ch) + 0x80)
75 #define SUN8I_MIXER_CHAN_UI_BOT_HADDR(ch)	(0x2000 + 0x1000 * (ch) + 0x84)
76 #define SUN8I_MIXER_CHAN_UI_OVL_SIZE(ch)	(0x2000 + 0x1000 * (ch) + 0x88)
77 
78 #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_EN		BIT(0)
79 #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_MASK	GENMASK(2, 1)
80 #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_MASK	GENMASK(12, 8)
81 #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_OFFSET	8
82 #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MASK	GENMASK(31, 24)
83 
84 #define SUN8I_MIXER_FBFMT_ARGB8888	0
85 #define SUN8I_MIXER_FBFMT_XRGB8888	4
86 #define SUN8I_MIXER_FBFMT_RGB888	8
87 
88 /*
89  * These sub-engines are still unknown now, the EN registers are here only to
90  * be used to disable these sub-engines.
91  */
92 #define SUN8I_MIXER_VSU_EN			0x20000
93 #define SUN8I_MIXER_GSU1_EN			0x30000
94 #define SUN8I_MIXER_GSU2_EN			0x40000
95 #define SUN8I_MIXER_GSU3_EN			0x50000
96 #define SUN8I_MIXER_FCE_EN			0xa0000
97 #define SUN8I_MIXER_BWS_EN			0xa2000
98 #define SUN8I_MIXER_LTI_EN			0xa4000
99 #define SUN8I_MIXER_PEAK_EN			0xa6000
100 #define SUN8I_MIXER_ASE_EN			0xa8000
101 #define SUN8I_MIXER_FCC_EN			0xaa000
102 #define SUN8I_MIXER_DCSC_EN			0xb0000
103 
104 struct sun8i_mixer_cfg {
105 	int		vi_num;
106 	int		ui_num;
107 };
108 
109 struct sun8i_mixer {
110 	struct sunxi_engine		engine;
111 
112 	const struct sun8i_mixer_cfg	*cfg;
113 
114 	struct reset_control		*reset;
115 
116 	struct clk			*bus_clk;
117 	struct clk			*mod_clk;
118 };
119 
120 static inline struct sun8i_mixer *
121 engine_to_sun8i_mixer(struct sunxi_engine *engine)
122 {
123 	return container_of(engine, struct sun8i_mixer, engine);
124 }
125 
126 void sun8i_mixer_layer_enable(struct sun8i_mixer *mixer, int channel,
127 			      int overlay, bool enable);
128 int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer, int channel,
129 				   int overlay, struct drm_plane *plane);
130 int sun8i_mixer_update_layer_formats(struct sun8i_mixer *mixer, int channel,
131 				     int overlay, struct drm_plane *plane);
132 int sun8i_mixer_update_layer_buffer(struct sun8i_mixer *mixer, int channel,
133 				    int overlay, struct drm_plane *plane);
134 #endif /* _SUN8I_MIXER_H_ */
135