dc-fu.h

  1/* SPDX-License-Identifier: GPL-2.0+ */
  2/*
  3 * Copyright 2024 NXP
  4 */
  5
  6#ifndef __DC_FETCHUNIT_H__
  7#define __DC_FETCHUNIT_H__
  8
  9#include <linux/bitfield.h>
 10#include <linux/bits.h>
 11#include <linux/regmap.h>
 12#include <linux/types.h>
 13
 14#include <drm/drm_fourcc.h>
 15
 16#include "dc-pe.h"
 17
 18#define FRAC_OFFSET			0x28
 19
 20#define STATICCONTROL			0x8
 21#define BURSTBUFFERMANAGEMENT		0xc
 22
 23/* COLORCOMPONENTBITS */
 24#define R_BITS(x)			FIELD_PREP_CONST(GENMASK(27, 24), (x))
 25#define G_BITS(x)			FIELD_PREP_CONST(GENMASK(19, 16), (x))
 26#define B_BITS(x)			FIELD_PREP_CONST(GENMASK(11, 8), (x))
 27#define A_BITS(x)			FIELD_PREP_CONST(GENMASK(3, 0), (x))
 28
 29/* COLORCOMPONENTSHIFT */
 30#define R_SHIFT(x)			FIELD_PREP_CONST(GENMASK(28, 24), (x))
 31#define G_SHIFT(x)			FIELD_PREP_CONST(GENMASK(20, 16), (x))
 32#define B_SHIFT(x)			FIELD_PREP_CONST(GENMASK(12, 8), (x))
 33#define A_SHIFT(x)			FIELD_PREP_CONST(GENMASK(4, 0), (x))
 34
 35/* LAYERPROPERTY */
 36#define SOURCEBUFFERENABLE		BIT(31)
 37#define YUVCONVERSIONMODE_MASK		GENMASK(18, 17)
 38#define YUVCONVERSIONMODE(x)		FIELD_PREP(YUVCONVERSIONMODE_MASK, (x))
 39
 40/* FRAMEDIMENSIONS */
 41#define FRAMEHEIGHT(x)			FIELD_PREP(GENMASK(29, 16), (x))
 42#define FRAMEWIDTH(x)			FIELD_PREP(GENMASK(13, 0), (x))
 43
 44/* CONTROL */
 45#define INPUTSELECT_MASK		GENMASK(4, 3)
 46#define INPUTSELECT(x)			FIELD_PREP(INPUTSELECT_MASK, (x))
 47#define RASTERMODE_MASK			GENMASK(2, 0)
 48#define RASTERMODE(x)			FIELD_PREP(RASTERMODE_MASK, (x))
 49
 50enum dc_yuvconversionmode {
 51	YUVCONVERSIONMODE_OFF,
 52};
 53
 54enum dc_inputselect {
 55	INPUTSELECT_INACTIVE,
 56};
 57
 58enum dc_rastermode {
 59	RASTERMODE_NORMAL,
 60};
 61
 62enum {
 63	DC_FETCHUNIT_FL0,
 64	DC_FETCHUNIT_FW2,
 65};
 66
 67enum dc_fu_frac {
 68	DC_FETCHUNIT_FRAC0,
 69	DC_FETCHUNIT_FRAC1,
 70	DC_FETCHUNIT_FRAC2,
 71	DC_FETCHUNIT_FRAC3,
 72	DC_FETCHUNIT_FRAC4,
 73	DC_FETCHUNIT_FRAC5,
 74	DC_FETCHUNIT_FRAC6,
 75	DC_FETCHUNIT_FRAC7,
 76	DC_FETCHUNIT_FRAC_NUM
 77};
 78
 79struct dc_fu;
 80struct dc_lb;
 81
 82struct dc_fu_ops {
 83	void (*init)(struct dc_fu *fu);
 84	void (*set_burstlength)(struct dc_fu *fu, dma_addr_t baddr);
 85	void (*set_baseaddress)(struct dc_fu *fu, enum dc_fu_frac frac,
 86				dma_addr_t baddr);
 87	void (*set_src_stride)(struct dc_fu *fu, enum dc_fu_frac frac,
 88			       unsigned int stride);
 89	void (*set_src_buf_dimensions)(struct dc_fu *fu, enum dc_fu_frac frac,
 90				       int w, int h);
 91	void (*set_fmt)(struct dc_fu *fu, enum dc_fu_frac frac,
 92			const struct drm_format_info *format);
 93	void (*enable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
 94	void (*disable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
 95	void (*set_framedimensions)(struct dc_fu *fu, int w, int h);
 96	void (*set_layerblend)(struct dc_fu *fu, struct dc_lb *lb);
 97	enum dc_link_id (*get_link_id)(struct dc_fu *fu);
 98	const char *(*get_name)(struct dc_fu *fu);
 99};
100
101struct dc_fu {
102	struct regmap *reg_pec;
103	struct regmap *reg_cfg;
104	char name[21];
105	u32 reg_baseaddr[DC_FETCHUNIT_FRAC_NUM];
106	u32 reg_sourcebufferattributes[DC_FETCHUNIT_FRAC_NUM];
107	u32 reg_sourcebufferdimension[DC_FETCHUNIT_FRAC_NUM];
108	u32 reg_layeroffset[DC_FETCHUNIT_FRAC_NUM];
109	u32 reg_clipwindowoffset[DC_FETCHUNIT_FRAC_NUM];
110	u32 reg_clipwindowdimensions[DC_FETCHUNIT_FRAC_NUM];
111	u32 reg_constantcolor[DC_FETCHUNIT_FRAC_NUM];
112	u32 reg_layerproperty[DC_FETCHUNIT_FRAC_NUM];
113	unsigned int id;
114	enum dc_link_id link_id;
115	struct dc_fu_ops ops;
116	struct dc_lb *lb;
117};
118
119extern const struct dc_fu_ops dc_fu_common_ops;
120
121void dc_fu_get_pixel_format_bits(struct dc_fu *fu, u32 format, u32 *bits);
122void dc_fu_get_pixel_format_shifts(struct dc_fu *fu, u32 format, u32 *shifts);
123void dc_fu_shdldreq_sticky(struct dc_fu *fu, u8 layer_mask);
124void dc_fu_set_src_bpp(struct dc_fu *fu, enum dc_fu_frac frac, unsigned int bpp);
125void dc_fu_common_hw_init(struct dc_fu *fu);
126
127const struct dc_fu_ops *dc_fu_get_ops(struct dc_fu *fu);
128
129#endif /* __DC_FETCHUNIT_H__ */