1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/*
  3 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
  4 */
  5
  6#ifndef _SUN8I_MIXER_H_
  7#define _SUN8I_MIXER_H_
  8
  9#include <linux/clk.h>
 10#include <linux/regmap.h>
 11#include <linux/reset.h>
 12
 13#include "sun8i_csc.h"
 14#include "sunxi_engine.h"
 15
 16#define SUN8I_MIXER_SIZE(w, h)			(((h) - 1) << 16 | ((w) - 1))
 17#define SUN8I_MIXER_COORD(x, y)			((y) << 16 | (x))
 18
 19#define SUN8I_MIXER_GLOBAL_CTL			0x0
 20#define SUN8I_MIXER_GLOBAL_STATUS		0x4
 21#define SUN8I_MIXER_GLOBAL_DBUFF		0x8
 22#define SUN8I_MIXER_GLOBAL_SIZE			0xc
 23
 24#define SUN8I_MIXER_GLOBAL_CTL_RT_EN		BIT(0)
 25
 26#define SUN8I_MIXER_GLOBAL_DBUFF_ENABLE		BIT(0)
 27
 28#define DE2_MIXER_UNIT_SIZE			0x6000
 29#define DE3_MIXER_UNIT_SIZE			0x3000
 30
 31#define DE2_BLD_BASE				0x1000
 32#define DE2_CH_BASE				0x2000
 33#define DE2_CH_SIZE				0x1000
 34
 35#define DE3_BLD_BASE				0x0800
 36#define DE3_CH_BASE				0x1000
 37#define DE3_CH_SIZE				0x0800
 38
 39#define SUN8I_MIXER_BLEND_PIPE_CTL(base)	((base) + 0)
 40#define SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, x)	((base) + 0x4 + 0x10 * (x))
 41#define SUN8I_MIXER_BLEND_ATTR_INSIZE(base, x)	((base) + 0x8 + 0x10 * (x))
 42#define SUN8I_MIXER_BLEND_ATTR_COORD(base, x)	((base) + 0xc + 0x10 * (x))
 43#define SUN8I_MIXER_BLEND_ROUTE(base)		((base) + 0x80)
 44#define SUN8I_MIXER_BLEND_PREMULTIPLY(base)	((base) + 0x84)
 45#define SUN8I_MIXER_BLEND_BKCOLOR(base)		((base) + 0x88)
 46#define SUN8I_MIXER_BLEND_OUTSIZE(base)		((base) + 0x8c)
 47#define SUN8I_MIXER_BLEND_MODE(base, x)		((base) + 0x90 + 0x04 * (x))
 48#define SUN8I_MIXER_BLEND_CK_CTL(base)		((base) + 0xb0)
 49#define SUN8I_MIXER_BLEND_CK_CFG(base)		((base) + 0xb4)
 50#define SUN8I_MIXER_BLEND_CK_MAX(base, x)	((base) + 0xc0 + 0x04 * (x))
 51#define SUN8I_MIXER_BLEND_CK_MIN(base, x)	((base) + 0xe0 + 0x04 * (x))
 52#define SUN8I_MIXER_BLEND_OUTCTL(base)		((base) + 0xfc)
 53#define SUN50I_MIXER_BLEND_CSC_CTL(base)	((base) + 0x100)
 54#define SUN50I_MIXER_BLEND_CSC_COEFF(base, layer, x, y) \
 55	((base) + 0x110 + (layer) * 0x30 +  (x) * 0x10 + 4 * (y))
 56#define SUN50I_MIXER_BLEND_CSC_CONST(base, layer, i) \
 57	((base) + 0x110 + (layer) * 0x30 +  (i) * 0x10 + 0x0c)
 58
 59#define SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK	GENMASK(12, 8)
 60#define SUN8I_MIXER_BLEND_PIPE_CTL_EN(pipe)	BIT(8 + pipe)
 61#define SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(pipe)	BIT(pipe)
 62
 63/* colors are always in AARRGGBB format */
 64#define SUN8I_MIXER_BLEND_COLOR_BLACK		0xff000000
 65/* The following numbers are some still unknown magic numbers */
 66#define SUN8I_MIXER_BLEND_MODE_DEF		0x03010301
 67
 68#define SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(n)	(0xf << ((n) << 2))
 69#define SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(n)	((n) << 2)
 70
 71#define SUN8I_MIXER_BLEND_OUTCTL_INTERLACED	BIT(1)
 72
 73#define SUN50I_MIXER_BLEND_CSC_CTL_EN(ch)	BIT(ch)
 74#define SUN50I_MIXER_BLEND_CSC_CONST_VAL(d, c)	(((d) << 16) | ((c) & 0xffff))
 75
 76#define SUN8I_MIXER_FBFMT_ARGB8888	0
 77#define SUN8I_MIXER_FBFMT_ABGR8888	1
 78#define SUN8I_MIXER_FBFMT_RGBA8888	2
 79#define SUN8I_MIXER_FBFMT_BGRA8888	3
 80#define SUN8I_MIXER_FBFMT_XRGB8888	4
 81#define SUN8I_MIXER_FBFMT_XBGR8888	5
 82#define SUN8I_MIXER_FBFMT_RGBX8888	6
 83#define SUN8I_MIXER_FBFMT_BGRX8888	7
 84#define SUN8I_MIXER_FBFMT_RGB888	8
 85#define SUN8I_MIXER_FBFMT_BGR888	9
 86#define SUN8I_MIXER_FBFMT_RGB565	10
 87#define SUN8I_MIXER_FBFMT_BGR565	11
 88#define SUN8I_MIXER_FBFMT_ARGB4444	12
 89#define SUN8I_MIXER_FBFMT_ABGR4444	13
 90#define SUN8I_MIXER_FBFMT_RGBA4444	14
 91#define SUN8I_MIXER_FBFMT_BGRA4444	15
 92#define SUN8I_MIXER_FBFMT_ARGB1555	16
 93#define SUN8I_MIXER_FBFMT_ABGR1555	17
 94#define SUN8I_MIXER_FBFMT_RGBA5551	18
 95#define SUN8I_MIXER_FBFMT_BGRA5551	19
 96
 97#define SUN8I_MIXER_FBFMT_YUYV		0
 98#define SUN8I_MIXER_FBFMT_UYVY		1
 99#define SUN8I_MIXER_FBFMT_YVYU		2
100#define SUN8I_MIXER_FBFMT_VYUY		3
101#define SUN8I_MIXER_FBFMT_NV16		4
102#define SUN8I_MIXER_FBFMT_NV61		5
103#define SUN8I_MIXER_FBFMT_YUV422	6
104/* format 7 doesn't exist */
105#define SUN8I_MIXER_FBFMT_NV12		8
106#define SUN8I_MIXER_FBFMT_NV21		9
107#define SUN8I_MIXER_FBFMT_YUV420	10
108/* format 11 doesn't exist */
109/* format 12 is semi-planar YUV411 UVUV */
110/* format 13 is semi-planar YUV411 VUVU */
111#define SUN8I_MIXER_FBFMT_YUV411	14
112
113/*
114 * Sub-engines listed bellow are unused for now. The EN registers are here only
115 * to be used to disable these sub-engines.
116 */
117#define SUN8I_MIXER_FCE_EN			0xa0000
118#define SUN8I_MIXER_BWS_EN			0xa2000
119#define SUN8I_MIXER_LTI_EN			0xa4000
120#define SUN8I_MIXER_PEAK_EN			0xa6000
121#define SUN8I_MIXER_ASE_EN			0xa8000
122#define SUN8I_MIXER_FCC_EN			0xaa000
123#define SUN8I_MIXER_DCSC_EN			0xb0000
124
125#define SUN50I_MIXER_FCE_EN			0x70000
126#define SUN50I_MIXER_PEAK_EN			0x70800
127#define SUN50I_MIXER_LCTI_EN			0x71000
128#define SUN50I_MIXER_BLS_EN			0x71800
129#define SUN50I_MIXER_FCC_EN			0x72000
130#define SUN50I_MIXER_DNS_EN			0x80000
131#define SUN50I_MIXER_DRC_EN			0xa0000
132#define SUN50I_MIXER_FMT_EN			0xa8000
133#define SUN50I_MIXER_CDC0_EN			0xd0000
134#define SUN50I_MIXER_CDC1_EN			0xd8000
135
136struct de2_fmt_info {
137	u32			drm_fmt;
138	u32			de2_fmt;
139	bool			rgb;
140	enum sun8i_csc_mode	csc;
141};
142
143/**
144 * struct sun8i_mixer_cfg - mixer HW configuration
145 * @vi_num: number of VI channels
146 * @ui_num: number of UI channels
147 * @scaler_mask: bitmask which tells which channel supports scaling
148 *	First, scaler supports for VI channels is defined and after that, scaler
149 *	support for UI channels. For example, if mixer has 2 VI channels without
150 *	scaler and 2 UI channels with scaler, bitmask would be 0xC.
151 * @ccsc: select set of CCSC base addresses
152 *	Set value to 0 if this is first mixer or second mixer with VEP support.
153 *	Set value to 1 if this is second mixer without VEP support. Other values
154 *	are invalid.
155 * @mod_rate: module clock rate that needs to be set in order to have
156 *	a functional block.
157 * @is_de3: true, if this is next gen display engine 3.0, false otherwise.
158 * @scaline_yuv: size of a scanline for VI scaler for YUV formats.
159 */
160struct sun8i_mixer_cfg {
161	int		vi_num;
162	int		ui_num;
163	int		scaler_mask;
164	int		ccsc;
165	unsigned long	mod_rate;
166	unsigned int	is_de3 : 1;
167	unsigned int	scanline_yuv;
168};
169
170struct sun8i_mixer {
171	struct sunxi_engine		engine;
172
173	const struct sun8i_mixer_cfg	*cfg;
174
175	struct reset_control		*reset;
176
177	struct clk			*bus_clk;
178	struct clk			*mod_clk;
179};
180
181static inline struct sun8i_mixer *
182engine_to_sun8i_mixer(struct sunxi_engine *engine)
183{
184	return container_of(engine, struct sun8i_mixer, engine);
185}
186
187static inline u32
188sun8i_blender_base(struct sun8i_mixer *mixer)
189{
190	return mixer->cfg->is_de3 ? DE3_BLD_BASE : DE2_BLD_BASE;
191}
192
193static inline u32
194sun8i_channel_base(struct sun8i_mixer *mixer, int channel)
195{
196	if (mixer->cfg->is_de3)
197		return DE3_CH_BASE + channel * DE3_CH_SIZE;
198	else
199		return DE2_CH_BASE + channel * DE2_CH_SIZE;
200}
201
202const struct de2_fmt_info *sun8i_mixer_format_info(u32 format);
203#endif /* _SUN8I_MIXER_H_ */