/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright 2024 NXP
 */

#ifndef __DC_PIXEL_ENGINE_H__
#define __DC_PIXEL_ENGINE_H__

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/regmap.h>

#include "dc-de.h"

#define SHDEN                   BIT(0)

#define CLKEN_MASK_SHIFT        24
#define CLKEN_MASK              (0x3 << CLKEN_MASK_SHIFT)
#define CLKEN(n)                ((n) << CLKEN_MASK_SHIFT)

#define DC_DISP_FU_CNT          2
#define DC_LB_CNT               4

enum dc_link_id {
        LINK_ID_NONE            = 0x00,
        LINK_ID_CONSTFRAME0     = 0x0c,
        LINK_ID_CONSTFRAME4     = 0x0e,
        LINK_ID_CONSTFRAME1     = 0x10,
        LINK_ID_CONSTFRAME5     = 0x12,
        LINK_ID_FETCHWARP2      = 0x14,
        LINK_ID_FETCHLAYER0     = 0x1a,
        LINK_ID_LAYERBLEND0     = 0x21,
        LINK_ID_LAYERBLEND1     = 0x22,
        LINK_ID_LAYERBLEND2     = 0x23,
        LINK_ID_LAYERBLEND3     = 0x24,
};

enum dc_lb_mode {
        LB_NEUTRAL,     /* Output is same as primary input. */
        LB_BLEND,
};

enum dc_pec_clken {
        CLKEN_DISABLE,
        CLKEN_AUTOMATIC,
};

struct dc_cf {
        struct regmap *reg_cfg;
        enum dc_link_id link;
};

struct dc_ed {
        struct device *dev;
        struct regmap *reg_pec;
        struct regmap *reg_cfg;
        int irq_shdload;
};

struct dc_lb {
        struct device *dev;
        struct regmap *reg_pec;
        struct regmap *reg_cfg;
        int id;
        enum dc_link_id link;
};

struct dc_pe {
        struct device *dev;
        struct clk *clk_axi;
        struct dc_cf *cf_safe[DC_DISPLAYS];
        struct dc_cf *cf_cont[DC_DISPLAYS];
        struct dc_ed *ed_safe[DC_DISPLAYS];
        struct dc_ed *ed_cont[DC_DISPLAYS];
        struct dc_fu *fu_disp[DC_DISP_FU_CNT];
        struct dc_lb *lb[DC_LB_CNT];
};

/* Constant Frame Unit */
enum dc_link_id dc_cf_get_link_id(struct dc_cf *cf);
void dc_cf_framedimensions(struct dc_cf *cf, unsigned int w, unsigned int h);
void dc_cf_constantcolor_black(struct dc_cf *cf);
void dc_cf_constantcolor_blue(struct dc_cf *cf);
void dc_cf_init(struct dc_cf *cf);

/* External Destination Unit */
void dc_ed_pec_src_sel(struct dc_ed *ed, enum dc_link_id src);
void dc_ed_pec_sync_trigger(struct dc_ed *ed);
void dc_ed_init(struct dc_ed *ed);

/* Layer Blend Unit */
enum dc_link_id dc_lb_get_link_id(struct dc_lb *lb);
void dc_lb_pec_dynamic_prim_sel(struct dc_lb *lb, enum dc_link_id prim);
void dc_lb_pec_dynamic_sec_sel(struct dc_lb *lb, enum dc_link_id sec);
void dc_lb_pec_clken(struct dc_lb *lb, enum dc_pec_clken clken);
void dc_lb_mode(struct dc_lb *lb, enum dc_lb_mode mode);
void dc_lb_position(struct dc_lb *lb, int x, int y);
int dc_lb_get_id(struct dc_lb *lb);
void dc_lb_init(struct dc_lb *lb);

#endif /* __DC_PIXEL_ENGINE_H__ */