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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2015 Free Electrons
4 * Copyright (C) 2015 NextThing Co
5 *
6 * Maxime Ripard <maxime.ripard@free-electrons.com>
7 */
8
9#ifndef _SUN4I_BACKEND_H_
10#define _SUN4I_BACKEND_H_
11
12#include <linux/clk.h>
13#include <linux/list.h>
14#include <linux/of.h>
15#include <linux/regmap.h>
16#include <linux/reset.h>
17
18#include "sunxi_engine.h"
19
20#define SUN4I_BACKEND_MODCTL_REG 0x800
21#define SUN4I_BACKEND_MODCTL_LINE_SEL BIT(29)
22#define SUN4I_BACKEND_MODCTL_ITLMOD_EN BIT(28)
23#define SUN4I_BACKEND_MODCTL_OUT_SEL GENMASK(22, 20)
24#define SUN4I_BACKEND_MODCTL_OUT_LCD0 (0 << 20)
25#define SUN4I_BACKEND_MODCTL_OUT_LCD1 (1 << 20)
26#define SUN4I_BACKEND_MODCTL_OUT_FE0 (6 << 20)
27#define SUN4I_BACKEND_MODCTL_OUT_FE1 (7 << 20)
28#define SUN4I_BACKEND_MODCTL_HWC_EN BIT(16)
29#define SUN4I_BACKEND_MODCTL_LAY_EN(l) BIT(8 + l)
30#define SUN4I_BACKEND_MODCTL_OCSC_EN BIT(5)
31#define SUN4I_BACKEND_MODCTL_DFLK_EN BIT(4)
32#define SUN4I_BACKEND_MODCTL_DLP_START_CTL BIT(2)
33#define SUN4I_BACKEND_MODCTL_START_CTL BIT(1)
34#define SUN4I_BACKEND_MODCTL_DEBE_EN BIT(0)
35
36#define SUN4I_BACKEND_BACKCOLOR_REG 0x804
37#define SUN4I_BACKEND_BACKCOLOR(r, g, b) (((r) << 16) | ((g) << 8) | (b))
38
39#define SUN4I_BACKEND_DISSIZE_REG 0x808
40#define SUN4I_BACKEND_DISSIZE(w, h) (((((h) - 1) & 0xffff) << 16) | \
41 (((w) - 1) & 0xffff))
42
43#define SUN4I_BACKEND_LAYSIZE_REG(l) (0x810 + (0x4 * (l)))
44#define SUN4I_BACKEND_LAYSIZE(w, h) (((((h) - 1) & 0x1fff) << 16) | \
45 (((w) - 1) & 0x1fff))
46
47#define SUN4I_BACKEND_LAYCOOR_REG(l) (0x820 + (0x4 * (l)))
48#define SUN4I_BACKEND_LAYCOOR(x, y) ((((u32)(y) & 0xffff) << 16) | \
49 ((u32)(x) & 0xffff))
50
51#define SUN4I_BACKEND_LAYLINEWIDTH_REG(l) (0x840 + (0x4 * (l)))
52
53#define SUN4I_BACKEND_LAYFB_L32ADD_REG(l) (0x850 + (0x4 * (l)))
54
55#define SUN4I_BACKEND_LAYFB_H4ADD_REG 0x860
56#define SUN4I_BACKEND_LAYFB_H4ADD_MSK(l) GENMASK(3 + ((l) * 8), (l) * 8)
57#define SUN4I_BACKEND_LAYFB_H4ADD(l, val) ((val) << ((l) * 8))
58
59#define SUN4I_BACKEND_REGBUFFCTL_REG 0x870
60#define SUN4I_BACKEND_REGBUFFCTL_AUTOLOAD_DIS BIT(1)
61#define SUN4I_BACKEND_REGBUFFCTL_LOADCTL BIT(0)
62
63#define SUN4I_BACKEND_CKMAX_REG 0x880
64#define SUN4I_BACKEND_CKMIN_REG 0x884
65#define SUN4I_BACKEND_CKCFG_REG 0x888
66#define SUN4I_BACKEND_ATTCTL_REG0(l) (0x890 + (0x4 * (l)))
67#define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_MASK GENMASK(31, 24)
68#define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA(x) ((x) << 24)
69#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL_MASK BIT(15)
70#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL(x) ((x) << 15)
71#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL_MASK GENMASK(11, 10)
72#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL(x) ((x) << 10)
73#define SUN4I_BACKEND_ATTCTL_REG0_LAY_YUVEN BIT(2)
74#define SUN4I_BACKEND_ATTCTL_REG0_LAY_VDOEN BIT(1)
75#define SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_EN BIT(0)
76
77#define SUN4I_BACKEND_ATTCTL_REG1(l) (0x8a0 + (0x4 * (l)))
78#define SUN4I_BACKEND_ATTCTL_REG1_LAY_HSCAFCT GENMASK(15, 14)
79#define SUN4I_BACKEND_ATTCTL_REG1_LAY_WSCAFCT GENMASK(13, 12)
80#define SUN4I_BACKEND_ATTCTL_REG1_LAY_FBFMT GENMASK(11, 8)
81#define SUN4I_BACKEND_LAY_FBFMT_1BPP (0 << 8)
82#define SUN4I_BACKEND_LAY_FBFMT_2BPP (1 << 8)
83#define SUN4I_BACKEND_LAY_FBFMT_4BPP (2 << 8)
84#define SUN4I_BACKEND_LAY_FBFMT_8BPP (3 << 8)
85#define SUN4I_BACKEND_LAY_FBFMT_RGB655 (4 << 8)
86#define SUN4I_BACKEND_LAY_FBFMT_RGB565 (5 << 8)
87#define SUN4I_BACKEND_LAY_FBFMT_RGB556 (6 << 8)
88#define SUN4I_BACKEND_LAY_FBFMT_ARGB1555 (7 << 8)
89#define SUN4I_BACKEND_LAY_FBFMT_RGBA5551 (8 << 8)
90#define SUN4I_BACKEND_LAY_FBFMT_XRGB8888 (9 << 8)
91#define SUN4I_BACKEND_LAY_FBFMT_ARGB8888 (10 << 8)
92#define SUN4I_BACKEND_LAY_FBFMT_RGB888 (11 << 8)
93#define SUN4I_BACKEND_LAY_FBFMT_ARGB4444 (12 << 8)
94#define SUN4I_BACKEND_LAY_FBFMT_RGBA4444 (13 << 8)
95
96#define SUN4I_BACKEND_DLCDPCTL_REG 0x8b0
97#define SUN4I_BACKEND_DLCDPFRMBUF_ADDRCTL_REG 0x8b4
98#define SUN4I_BACKEND_DLCDPCOOR_REG0 0x8b8
99#define SUN4I_BACKEND_DLCDPCOOR_REG1 0x8bc
100
101#define SUN4I_BACKEND_INT_EN_REG 0x8c0
102#define SUN4I_BACKEND_INT_FLAG_REG 0x8c4
103#define SUN4I_BACKEND_REG_LOAD_FINISHED BIT(1)
104
105#define SUN4I_BACKEND_HWCCTL_REG 0x8d8
106#define SUN4I_BACKEND_HWCFBCTL_REG 0x8e0
107#define SUN4I_BACKEND_WBCTL_REG 0x8f0
108#define SUN4I_BACKEND_WBADD_REG 0x8f4
109#define SUN4I_BACKEND_WBLINEWIDTH_REG 0x8f8
110#define SUN4I_BACKEND_SPREN_REG 0x900
111#define SUN4I_BACKEND_SPRFMTCTL_REG 0x908
112#define SUN4I_BACKEND_SPRALPHACTL_REG 0x90c
113
114#define SUN4I_BACKEND_IYUVCTL_REG 0x920
115#define SUN4I_BACKEND_IYUVCTL_FBFMT_MASK GENMASK(14, 12)
116#define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV444 (4 << 12)
117#define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV422 (3 << 12)
118#define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV444 (2 << 12)
119#define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV222 (1 << 12)
120#define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV111 (0 << 12)
121#define SUN4I_BACKEND_IYUVCTL_FBPS_MASK GENMASK(9, 8)
122#define SUN4I_BACKEND_IYUVCTL_FBPS_YVYU (3 << 8)
123#define SUN4I_BACKEND_IYUVCTL_FBPS_VYUY (2 << 8)
124#define SUN4I_BACKEND_IYUVCTL_FBPS_YUYV (1 << 8)
125#define SUN4I_BACKEND_IYUVCTL_FBPS_UYVY (0 << 8)
126#define SUN4I_BACKEND_IYUVCTL_FBPS_VUYA (1 << 8)
127#define SUN4I_BACKEND_IYUVCTL_FBPS_AYUV (0 << 8)
128#define SUN4I_BACKEND_IYUVCTL_EN BIT(0)
129
130#define SUN4I_BACKEND_IYUVADD_REG(c) (0x930 + (0x4 * (c)))
131
132#define SUN4I_BACKEND_IYUVLINEWIDTH_REG(c) (0x940 + (0x4 * (c)))
133
134#define SUN4I_BACKEND_YGCOEF_REG(c) (0x950 + (0x4 * (c)))
135#define SUN4I_BACKEND_YGCONS_REG 0x95c
136#define SUN4I_BACKEND_URCOEF_REG(c) (0x960 + (0x4 * (c)))
137#define SUN4I_BACKEND_URCONS_REG 0x96c
138#define SUN4I_BACKEND_VBCOEF_REG(c) (0x970 + (0x4 * (c)))
139#define SUN4I_BACKEND_VBCONS_REG 0x97c
140#define SUN4I_BACKEND_KSCTL_REG 0x980
141#define SUN4I_BACKEND_KSBKCOLOR_REG 0x984
142#define SUN4I_BACKEND_KSFSTLINEWIDTH_REG 0x988
143#define SUN4I_BACKEND_KSVSCAFCT_REG 0x98c
144#define SUN4I_BACKEND_KSHSCACOEF_REG(x) (0x9a0 + (0x4 * (x)))
145#define SUN4I_BACKEND_OCCTL_REG 0x9c0
146#define SUN4I_BACKEND_OCCTL_ENABLE BIT(0)
147
148#define SUN4I_BACKEND_OCRCOEF_REG(x) (0x9d0 + (0x4 * (x)))
149#define SUN4I_BACKEND_OCRCONS_REG 0x9dc
150#define SUN4I_BACKEND_OCGCOEF_REG(x) (0x9e0 + (0x4 * (x)))
151#define SUN4I_BACKEND_OCGCONS_REG 0x9ec
152#define SUN4I_BACKEND_OCBCOEF_REG(x) (0x9f0 + (0x4 * (x)))
153#define SUN4I_BACKEND_OCBCONS_REG 0x9fc
154#define SUN4I_BACKEND_SPRCOORCTL_REG(s) (0xa00 + (0x4 * (s)))
155#define SUN4I_BACKEND_SPRATTCTL_REG(s) (0xb00 + (0x4 * (s)))
156#define SUN4I_BACKEND_SPRADD_REG(s) (0xc00 + (0x4 * (s)))
157#define SUN4I_BACKEND_SPRLINEWIDTH_REG(s) (0xd00 + (0x4 * (s)))
158
159#define SUN4I_BACKEND_SPRPALTAB_OFF 0x4000
160#define SUN4I_BACKEND_GAMMATAB_OFF 0x4400
161#define SUN4I_BACKEND_HWCPATTERN_OFF 0x4800
162#define SUN4I_BACKEND_HWCCOLORTAB_OFF 0x4c00
163#define SUN4I_BACKEND_PIPE_OFF(p) (0x5000 + (0x400 * (p)))
164
165#define SUN4I_BACKEND_NUM_LAYERS 4
166#define SUN4I_BACKEND_NUM_FRONTEND_LAYERS 1
167#define SUN4I_BACKEND_NUM_YUV_PLANES 1
168
169struct sun4i_backend {
170 struct sunxi_engine engine;
171 struct sun4i_frontend *frontend;
172
173 struct reset_control *reset;
174
175 struct clk *bus_clk;
176 struct clk *mod_clk;
177 struct clk *ram_clk;
178
179 struct clk *sat_clk;
180 struct reset_control *sat_reset;
181
182 /* Protects against races in the frontend teardown */
183 spinlock_t frontend_lock;
184 bool frontend_teardown;
185
186 const struct sun4i_backend_quirks *quirks;
187};
188
189static inline struct sun4i_backend *
190engine_to_sun4i_backend(struct sunxi_engine *engine)
191{
192 return container_of(engine, struct sun4i_backend, engine);
193}
194
195void sun4i_backend_layer_enable(struct sun4i_backend *backend,
196 int layer, bool enable);
197bool sun4i_backend_format_is_supported(uint32_t fmt, uint64_t modifier);
198int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
199 int layer, struct drm_plane *plane);
200int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
201 int layer, struct drm_plane *plane);
202int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend,
203 int layer, struct drm_plane *plane);
204int sun4i_backend_update_layer_frontend(struct sun4i_backend *backend,
205 int layer, uint32_t in_fmt);
206int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend,
207 int layer, struct drm_plane *plane);
208void sun4i_backend_cleanup_layer(struct sun4i_backend *backend,
209 int layer);
210
211#endif /* _SUN4I_BACKEND_H_ */