linux/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Header file for Analogix DP (Display Port) core interface driver.
 *
 * Copyright (C) 2012 Samsung Electronics Co., Ltd.
 * Author: Jingoo Han <[email protected]>
 */

#ifndef _ANALOGIX_DP_CORE_H
#define _ANALOGIX_DP_CORE_H

#include <drm/display/drm_dp_helper.h>
#include <drm/drm_crtc.h>

#define DP_TIMEOUT_LOOP_COUNT …
#define MAX_CR_LOOP …
#define MAX_EQ_LOOP …
#define MAX_PLL_LOCK_LOOP …

/* Training takes 22ms if AUX channel comm fails. Use this as retry interval */
#define DP_TIMEOUT_TRAINING_US …
#define DP_TIMEOUT_PSR_LOOP_MS …

/* DP_MAX_LANE_COUNT */
#define DPCD_ENHANCED_FRAME_CAP(x) …
#define DPCD_MAX_LANE_COUNT(x) …

/* DP_LANE_COUNT_SET */
#define DPCD_LANE_COUNT_SET(x) …

/* DP_TRAINING_LANE0_SET */
#define DPCD_PRE_EMPHASIS_SET(x) …
#define DPCD_PRE_EMPHASIS_GET(x) …
#define DPCD_VOLTAGE_SWING_SET(x) …
#define DPCD_VOLTAGE_SWING_GET(x) …

struct gpio_desc;

enum link_lane_count_type { … };

enum link_training_state { … };

enum voltage_swing_level { … };

enum pre_emphasis_level { … };

enum pattern_set { … };

enum color_space { … };

enum color_depth { … };

enum color_coefficient { … };

enum dynamic_range { … };

enum clock_recovery_m_value_type { … };

enum video_timing_recognition_type { … };

enum analog_power_block { … };

enum dp_irq_type { … };

struct video_info { … };

struct link_train { … };

struct analogix_dp_device { … };

/* analogix_dp_reg.c */
void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable);
void analogix_dp_stop_video(struct analogix_dp_device *dp);
void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable);
void analogix_dp_init_analog_param(struct analogix_dp_device *dp);
void analogix_dp_init_interrupt(struct analogix_dp_device *dp);
void analogix_dp_reset(struct analogix_dp_device *dp);
void analogix_dp_swreset(struct analogix_dp_device *dp);
void analogix_dp_config_interrupt(struct analogix_dp_device *dp);
void analogix_dp_mute_hpd_interrupt(struct analogix_dp_device *dp);
void analogix_dp_unmute_hpd_interrupt(struct analogix_dp_device *dp);
int analogix_dp_wait_pll_locked(struct analogix_dp_device *dp);
void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable);
void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
				       enum analog_power_block block,
				       bool enable);
int analogix_dp_init_analog_func(struct analogix_dp_device *dp);
void analogix_dp_init_hpd(struct analogix_dp_device *dp);
void analogix_dp_force_hpd(struct analogix_dp_device *dp);
enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp);
void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp);
void analogix_dp_reset_aux(struct analogix_dp_device *dp);
void analogix_dp_init_aux(struct analogix_dp_device *dp);
int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp);
void analogix_dp_enable_sw_function(struct analogix_dp_device *dp);
void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype);
void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype);
void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count);
void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count);
void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
				      bool enable);
void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
				      enum pattern_set pattern);
void analogix_dp_set_lane_link_training(struct analogix_dp_device *dp);
u32 analogix_dp_get_lane_link_training(struct analogix_dp_device *dp, u8 lane);
void analogix_dp_reset_macro(struct analogix_dp_device *dp);
void analogix_dp_init_video(struct analogix_dp_device *dp);

void analogix_dp_set_video_color_format(struct analogix_dp_device *dp);
int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp);
void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp,
				 enum clock_recovery_m_value_type type,
				 u32 m_value,
				 u32 n_value);
void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type);
void analogix_dp_enable_video_master(struct analogix_dp_device *dp,
				     bool enable);
void analogix_dp_start_video(struct analogix_dp_device *dp);
int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp);
void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp);
void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
void analogix_dp_enable_psr_crc(struct analogix_dp_device *dp);
int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
			     struct dp_sdp *vsc, bool blocking);
ssize_t analogix_dp_transfer(struct analogix_dp_device *dp,
			     struct drm_dp_aux_msg *msg);

#endif /* _ANALOGIX_DP_CORE_H */