/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2019 Intel Corporation
 */

#ifndef __INTEL_PANEL_H__
#define __INTEL_PANEL_H__

#include <linux/types.h>

#include "intel_display.h"

struct drm_connector;
struct drm_connector_state;
struct drm_display_mode;
struct intel_connector;
struct intel_crtc;
struct intel_crtc_state;
struct intel_encoder;
struct intel_panel;

int intel_panel_init(struct intel_panel *panel,
		     struct drm_display_mode *fixed_mode,
		     struct drm_display_mode *downclock_mode);
void intel_panel_fini(struct intel_panel *panel);
enum drm_connector_status
intel_panel_detect(struct drm_connector *connector, bool force);
void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
			    struct drm_display_mode *adjusted_mode);
int intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
			    const struct drm_connector_state *conn_state);
int intel_gmch_panel_fitting(struct intel_crtc_state *crtc_state,
			     const struct drm_connector_state *conn_state);
void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state,
				    u32 level, u32 max);
int intel_panel_setup_backlight(struct drm_connector *connector,
				enum pipe pipe);
void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
				  const struct drm_connector_state *conn_state);
void intel_panel_update_backlight(struct intel_atomic_state *state,
				  struct intel_encoder *encoder,
				  const struct intel_crtc_state *crtc_state,
				  const struct drm_connector_state *conn_state);
void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_state);
struct drm_display_mode *
intel_panel_edid_downclock_mode(struct intel_connector *connector,
				const struct drm_display_mode *fixed_mode);
struct drm_display_mode *
intel_panel_edid_fixed_mode(struct intel_connector *connector);
struct drm_display_mode *
intel_panel_vbt_fixed_mode(struct intel_connector *connector);
void intel_panel_set_pwm_level(const struct drm_connector_state *conn_state, u32 level);
u32 intel_panel_invert_pwm_level(struct intel_connector *connector, u32 level);
u32 intel_panel_backlight_level_to_pwm(struct intel_connector *connector, u32 level);
u32 intel_panel_backlight_level_from_pwm(struct intel_connector *connector, u32 val);

#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
int intel_backlight_device_register(struct intel_connector *connector);
void intel_backlight_device_unregister(struct intel_connector *connector);
#else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
static inline int intel_backlight_device_register(struct intel_connector *connector)
{
	return 0;
}
static inline void intel_backlight_device_unregister(struct intel_connector *connector)
{
}
#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */

#endif /* __INTEL_PANEL_H__ */