1/*
  2 * Copyright (C) 2015 Free Electrons
  3 * Copyright (C) 2015 NextThing Co
  4 *
  5 * Maxime Ripard <maxime.ripard@free-electrons.com>
  6 *
  7 * This program is free software; you can redistribute it and/or
  8 * modify it under the terms of the GNU General Public License as
  9 * published by the Free Software Foundation; either version 2 of
 10 * the License, or (at your option) any later version.
 11 */
 12
 13#ifndef _SUN4I_BACKEND_H_
 14#define _SUN4I_BACKEND_H_
 15
 16#include <linux/clk.h>
 17#include <linux/list.h>
 18#include <linux/of.h>
 19#include <linux/regmap.h>
 20#include <linux/reset.h>
 21
 22#include "sunxi_engine.h"
 23
 24#define SUN4I_BACKEND_MODCTL_REG		0x800
 25#define SUN4I_BACKEND_MODCTL_LINE_SEL			BIT(29)
 26#define SUN4I_BACKEND_MODCTL_ITLMOD_EN			BIT(28)
 27#define SUN4I_BACKEND_MODCTL_OUT_SEL			GENMASK(22, 20)
 28#define SUN4I_BACKEND_MODCTL_OUT_LCD0				(0 << 20)
 29#define SUN4I_BACKEND_MODCTL_OUT_LCD1				(1 << 20)
 30#define SUN4I_BACKEND_MODCTL_OUT_FE0				(6 << 20)
 31#define SUN4I_BACKEND_MODCTL_OUT_FE1				(7 << 20)
 32#define SUN4I_BACKEND_MODCTL_HWC_EN			BIT(16)
 33#define SUN4I_BACKEND_MODCTL_LAY_EN(l)			BIT(8 + l)
 34#define SUN4I_BACKEND_MODCTL_OCSC_EN			BIT(5)
 35#define SUN4I_BACKEND_MODCTL_DFLK_EN			BIT(4)
 36#define SUN4I_BACKEND_MODCTL_DLP_START_CTL		BIT(2)
 37#define SUN4I_BACKEND_MODCTL_START_CTL			BIT(1)
 38#define SUN4I_BACKEND_MODCTL_DEBE_EN			BIT(0)
 39
 40#define SUN4I_BACKEND_BACKCOLOR_REG		0x804
 41#define SUN4I_BACKEND_BACKCOLOR(r, g, b)		(((r) << 16) | ((g) << 8) | (b))
 42
 43#define SUN4I_BACKEND_DISSIZE_REG		0x808
 44#define SUN4I_BACKEND_DISSIZE(w, h)			(((((h) - 1) & 0xffff) << 16) | \
 45							 (((w) - 1) & 0xffff))
 46
 47#define SUN4I_BACKEND_LAYSIZE_REG(l)		(0x810 + (0x4 * (l)))
 48#define SUN4I_BACKEND_LAYSIZE(w, h)			(((((h) - 1) & 0x1fff) << 16) | \
 49							 (((w) - 1) & 0x1fff))
 50
 51#define SUN4I_BACKEND_LAYCOOR_REG(l)		(0x820 + (0x4 * (l)))
 52#define SUN4I_BACKEND_LAYCOOR(x, y)			((((u32)(y) & 0xffff) << 16) | \
 53							 ((u32)(x) & 0xffff))
 54
 55#define SUN4I_BACKEND_LAYLINEWIDTH_REG(l)	(0x840 + (0x4 * (l)))
 56
 57#define SUN4I_BACKEND_LAYFB_L32ADD_REG(l)	(0x850 + (0x4 * (l)))
 58
 59#define SUN4I_BACKEND_LAYFB_H4ADD_REG		0x860
 60#define SUN4I_BACKEND_LAYFB_H4ADD_MSK(l)		GENMASK(3 + ((l) * 8), (l) * 8)
 61#define SUN4I_BACKEND_LAYFB_H4ADD(l, val)		((val) << ((l) * 8))
 62
 63#define SUN4I_BACKEND_REGBUFFCTL_REG		0x870
 64#define SUN4I_BACKEND_REGBUFFCTL_AUTOLOAD_DIS		BIT(1)
 65#define SUN4I_BACKEND_REGBUFFCTL_LOADCTL		BIT(0)
 66
 67#define SUN4I_BACKEND_CKMAX_REG			0x880
 68#define SUN4I_BACKEND_CKMIN_REG			0x884
 69#define SUN4I_BACKEND_CKCFG_REG			0x888
 70#define SUN4I_BACKEND_ATTCTL_REG0(l)		(0x890 + (0x4 * (l)))
 71#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL_MASK	BIT(15)
 72#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL(x)		((x) << 15)
 73#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL_MASK	GENMASK(11, 10)
 74#define SUN4I_BACKEND_ATTCTL_REG0_LAY_PRISEL(x)			((x) << 10)
 75#define SUN4I_BACKEND_ATTCTL_REG0_LAY_YUVEN		BIT(2)
 76#define SUN4I_BACKEND_ATTCTL_REG0_LAY_VDOEN		BIT(1)
 77
 78#define SUN4I_BACKEND_ATTCTL_REG1(l)		(0x8a0 + (0x4 * (l)))
 79#define SUN4I_BACKEND_ATTCTL_REG1_LAY_HSCAFCT		GENMASK(15, 14)
 80#define SUN4I_BACKEND_ATTCTL_REG1_LAY_WSCAFCT		GENMASK(13, 12)
 81#define SUN4I_BACKEND_ATTCTL_REG1_LAY_FBFMT		GENMASK(11, 8)
 82#define SUN4I_BACKEND_LAY_FBFMT_1BPP				(0 << 8)
 83#define SUN4I_BACKEND_LAY_FBFMT_2BPP				(1 << 8)
 84#define SUN4I_BACKEND_LAY_FBFMT_4BPP				(2 << 8)
 85#define SUN4I_BACKEND_LAY_FBFMT_8BPP				(3 << 8)
 86#define SUN4I_BACKEND_LAY_FBFMT_RGB655				(4 << 8)
 87#define SUN4I_BACKEND_LAY_FBFMT_RGB565				(5 << 8)
 88#define SUN4I_BACKEND_LAY_FBFMT_RGB556				(6 << 8)
 89#define SUN4I_BACKEND_LAY_FBFMT_ARGB1555			(7 << 8)
 90#define SUN4I_BACKEND_LAY_FBFMT_RGBA5551			(8 << 8)
 91#define SUN4I_BACKEND_LAY_FBFMT_XRGB8888			(9 << 8)
 92#define SUN4I_BACKEND_LAY_FBFMT_ARGB8888			(10 << 8)
 93#define SUN4I_BACKEND_LAY_FBFMT_RGB888				(11 << 8)
 94#define SUN4I_BACKEND_LAY_FBFMT_ARGB4444			(12 << 8)
 95#define SUN4I_BACKEND_LAY_FBFMT_RGBA4444			(13 << 8)
 96
 97#define SUN4I_BACKEND_DLCDPCTL_REG		0x8b0
 98#define SUN4I_BACKEND_DLCDPFRMBUF_ADDRCTL_REG	0x8b4
 99#define SUN4I_BACKEND_DLCDPCOOR_REG0		0x8b8
100#define SUN4I_BACKEND_DLCDPCOOR_REG1		0x8bc
101
102#define SUN4I_BACKEND_INT_EN_REG		0x8c0
103#define SUN4I_BACKEND_INT_FLAG_REG		0x8c4
104#define SUN4I_BACKEND_REG_LOAD_FINISHED			BIT(1)
105
106#define SUN4I_BACKEND_HWCCTL_REG		0x8d8
107#define SUN4I_BACKEND_HWCFBCTL_REG		0x8e0
108#define SUN4I_BACKEND_WBCTL_REG			0x8f0
109#define SUN4I_BACKEND_WBADD_REG			0x8f4
110#define SUN4I_BACKEND_WBLINEWIDTH_REG		0x8f8
111#define SUN4I_BACKEND_SPREN_REG			0x900
112#define SUN4I_BACKEND_SPRFMTCTL_REG		0x908
113#define SUN4I_BACKEND_SPRALPHACTL_REG		0x90c
114
115#define SUN4I_BACKEND_IYUVCTL_REG		0x920
116#define SUN4I_BACKEND_IYUVCTL_FBFMT_MASK		GENMASK(14, 12)
117#define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV444		(4 << 12)
118#define SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV422		(3 << 12)
119#define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV444		(2 << 12)
120#define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV222		(1 << 12)
121#define SUN4I_BACKEND_IYUVCTL_FBFMT_PLANAR_YUV111		(0 << 12)
122#define SUN4I_BACKEND_IYUVCTL_FBPS_MASK			GENMASK(9, 8)
123#define SUN4I_BACKEND_IYUVCTL_FBPS_YVYU				(3 << 8)
124#define SUN4I_BACKEND_IYUVCTL_FBPS_VYUY				(2 << 8)
125#define SUN4I_BACKEND_IYUVCTL_FBPS_YUYV				(1 << 8)
126#define SUN4I_BACKEND_IYUVCTL_FBPS_UYVY				(0 << 8)
127#define SUN4I_BACKEND_IYUVCTL_FBPS_VUYA				(1 << 8)
128#define SUN4I_BACKEND_IYUVCTL_FBPS_AYUV				(0 << 8)
129#define SUN4I_BACKEND_IYUVCTL_EN			BIT(0)
130
131#define SUN4I_BACKEND_IYUVADD_REG(c)		(0x930 + (0x4 * (c)))
132
133#define SUN4I_BACKEND_IYUVLINEWIDTH_REG(c)	(0x940 + (0x4 * (c)))
134
135#define SUN4I_BACKEND_YGCOEF_REG(c)		(0x950 + (0x4 * (c)))
136#define SUN4I_BACKEND_YGCONS_REG		0x95c
137#define SUN4I_BACKEND_URCOEF_REG(c)		(0x960 + (0x4 * (c)))
138#define SUN4I_BACKEND_URCONS_REG		0x96c
139#define SUN4I_BACKEND_VBCOEF_REG(c)		(0x970 + (0x4 * (c)))
140#define SUN4I_BACKEND_VBCONS_REG		0x97c
141#define SUN4I_BACKEND_KSCTL_REG			0x980
142#define SUN4I_BACKEND_KSBKCOLOR_REG		0x984
143#define SUN4I_BACKEND_KSFSTLINEWIDTH_REG	0x988
144#define SUN4I_BACKEND_KSVSCAFCT_REG		0x98c
145#define SUN4I_BACKEND_KSHSCACOEF_REG(x)		(0x9a0 + (0x4 * (x)))
146#define SUN4I_BACKEND_OCCTL_REG			0x9c0
147#define SUN4I_BACKEND_OCCTL_ENABLE			BIT(0)
148
149#define SUN4I_BACKEND_OCRCOEF_REG(x)		(0x9d0 + (0x4 * (x)))
150#define SUN4I_BACKEND_OCRCONS_REG		0x9dc
151#define SUN4I_BACKEND_OCGCOEF_REG(x)		(0x9e0 + (0x4 * (x)))
152#define SUN4I_BACKEND_OCGCONS_REG		0x9ec
153#define SUN4I_BACKEND_OCBCOEF_REG(x)		(0x9f0 + (0x4 * (x)))
154#define SUN4I_BACKEND_OCBCONS_REG		0x9fc
155#define SUN4I_BACKEND_SPRCOORCTL_REG(s)		(0xa00 + (0x4 * (s)))
156#define SUN4I_BACKEND_SPRATTCTL_REG(s)		(0xb00 + (0x4 * (s)))
157#define SUN4I_BACKEND_SPRADD_REG(s)		(0xc00 + (0x4 * (s)))
158#define SUN4I_BACKEND_SPRLINEWIDTH_REG(s)	(0xd00 + (0x4 * (s)))
159
160#define SUN4I_BACKEND_SPRPALTAB_OFF		0x4000
161#define SUN4I_BACKEND_GAMMATAB_OFF		0x4400
162#define SUN4I_BACKEND_HWCPATTERN_OFF		0x4800
163#define SUN4I_BACKEND_HWCCOLORTAB_OFF		0x4c00
164#define SUN4I_BACKEND_PIPE_OFF(p)		(0x5000 + (0x400 * (p)))
165
166#define SUN4I_BACKEND_NUM_LAYERS		4
167#define SUN4I_BACKEND_NUM_ALPHA_LAYERS		1
168#define SUN4I_BACKEND_NUM_FRONTEND_LAYERS	1
169#define SUN4I_BACKEND_NUM_YUV_PLANES		1
170
171struct sun4i_backend {
172	struct sunxi_engine	engine;
173	struct sun4i_frontend	*frontend;
174
175	struct reset_control	*reset;
176
177	struct clk		*bus_clk;
178	struct clk		*mod_clk;
179	struct clk		*ram_clk;
180
181	struct clk		*sat_clk;
182	struct reset_control	*sat_reset;
183
184	/* Protects against races in the frontend teardown */
185	spinlock_t		frontend_lock;
186	bool			frontend_teardown;
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);
197int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
198				     int layer, struct drm_plane *plane);
199int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
200				       int layer, struct drm_plane *plane);
201int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend,
202				      int layer, struct drm_plane *plane);
203int sun4i_backend_update_layer_frontend(struct sun4i_backend *backend,
204					int layer, uint32_t in_fmt);
205int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend,
206				    int layer, struct drm_plane *plane);
207
208#endif /* _SUN4I_BACKEND_H_ */