/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Copyright (c) 2024 Hisilicon Limited. */

#ifndef DP_KAPI_H
#define DP_KAPI_H

#include <linux/types.h>
#include <linux/delay.h>
#include <drm/drm_device.h>
#include <drm/drm_encoder.h>
#include <drm/drm_connector.h>
#include <drm/drm_print.h>
#include <drm/display/drm_dp_helper.h>

struct hibmc_dp_dev;

enum hibmc_hpd_status {
        HIBMC_HPD_OUT,
        HIBMC_HPD_IN,
};

enum hibmc_dp_cbar_pattern {
        CBAR_COLOR_BAR,
        CBAR_WHITE,
        CBAR_RED,
        CBAR_ORANGE,
        CBAR_YELLOW,
        CBAR_GREEN,
        CBAR_CYAN,
        CBAR_BLUE,
        CBAR_PURPLE,
        CBAR_BLACK,
};

struct hibmc_dp_color_raw {
        enum hibmc_dp_cbar_pattern pattern;
        u32 r_value;
        u32 g_value;
        u32 b_value;
};

struct hibmc_dp_cbar_cfg {
        u8 enable;
        u8 self_timing;
        u8 dynamic_rate; /* 0:static, 1-255(frame):dynamic */
        enum hibmc_dp_cbar_pattern pattern;
};

struct hibmc_dp {
        struct hibmc_dp_dev *dp_dev;
        struct drm_device *drm_dev;
        struct drm_encoder encoder;
        struct drm_connector connector;
        void __iomem *mmio;
        struct drm_dp_aux aux;
        struct hibmc_dp_cbar_cfg cfg;
        u32 irq_status;
};

int hibmc_dp_hw_init(struct hibmc_dp *dp);
int hibmc_dp_mode_set(struct hibmc_dp *dp, struct drm_display_mode *mode);
void hibmc_dp_display_en(struct hibmc_dp *dp, bool enable);
void hibmc_dp_set_cbar(struct hibmc_dp *dp, const struct hibmc_dp_cbar_cfg *cfg);
void hibmc_dp_reset_link(struct hibmc_dp *dp);
void hibmc_dp_hpd_cfg(struct hibmc_dp *dp);
void hibmc_dp_enable_int(struct hibmc_dp *dp);
void hibmc_dp_disable_int(struct hibmc_dp *dp);
bool hibmc_dp_check_hpd_status(struct hibmc_dp *dp, int exp_status);
u8 hibmc_dp_get_link_rate(struct hibmc_dp *dp);
u8 hibmc_dp_get_lanes(struct hibmc_dp *dp);

#endif