linux/drivers/gpu/drm/msm/hdmi/hdmi.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2013 Red Hat
 * Author: Rob Clark <[email protected]>
 */

#ifndef __HDMI_CONNECTOR_H__
#define __HDMI_CONNECTOR_H__

#include <linux/i2c.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/gpio/consumer.h>
#include <linux/hdmi.h>

#include <drm/drm_bridge.h>

#include "msm_drv.h"
#include "hdmi.xml.h"

struct hdmi_phy;
struct hdmi_platform_config;

struct hdmi_audio { … };

struct hdmi_hdcp_ctrl;

struct hdmi { … };

/* platform config data (ie. from DT, or pdata) */
struct hdmi_platform_config { … };

struct hdmi_bridge { … };
#define to_hdmi_bridge(x) …

void msm_hdmi_set_mode(struct hdmi *hdmi, bool power_on);

static inline void hdmi_write(struct hdmi *hdmi, u32 reg, u32 data)
{ … }

static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg)
{ … }

static inline u32 hdmi_qfprom_read(struct hdmi *hdmi, u32 reg)
{ … }

/*
 * hdmi phy:
 */

enum hdmi_phy_type { … };

struct hdmi_phy_cfg { … };

extern const struct hdmi_phy_cfg msm_hdmi_phy_8x60_cfg;
extern const struct hdmi_phy_cfg msm_hdmi_phy_8960_cfg;
extern const struct hdmi_phy_cfg msm_hdmi_phy_8x74_cfg;
extern const struct hdmi_phy_cfg msm_hdmi_phy_8996_cfg;

struct hdmi_phy { … };

static inline void hdmi_phy_write(struct hdmi_phy *phy, u32 reg, u32 data)
{ … }

static inline u32 hdmi_phy_read(struct hdmi_phy *phy, u32 reg)
{ … }

int msm_hdmi_phy_resource_enable(struct hdmi_phy *phy);
void msm_hdmi_phy_resource_disable(struct hdmi_phy *phy);
void msm_hdmi_phy_powerup(struct hdmi_phy *phy, unsigned long int pixclock);
void msm_hdmi_phy_powerdown(struct hdmi_phy *phy);
void __init msm_hdmi_phy_driver_register(void);
void __exit msm_hdmi_phy_driver_unregister(void);

#ifdef CONFIG_COMMON_CLK
int msm_hdmi_pll_8960_init(struct platform_device *pdev);
int msm_hdmi_pll_8996_init(struct platform_device *pdev);
#else
static inline int msm_hdmi_pll_8960_init(struct platform_device *pdev)
{
	return -ENODEV;
}

static inline int msm_hdmi_pll_8996_init(struct platform_device *pdev)
{
	return -ENODEV;
}
#endif

/*
 * audio:
 */
/* Supported HDMI Audio channels and rates */
#define MSM_HDMI_AUDIO_CHANNEL_2 …
#define MSM_HDMI_AUDIO_CHANNEL_4 …
#define MSM_HDMI_AUDIO_CHANNEL_6 …
#define MSM_HDMI_AUDIO_CHANNEL_8 …

#define HDMI_SAMPLE_RATE_32KHZ …
#define HDMI_SAMPLE_RATE_44_1KHZ …
#define HDMI_SAMPLE_RATE_48KHZ …
#define HDMI_SAMPLE_RATE_88_2KHZ …
#define HDMI_SAMPLE_RATE_96KHZ …
#define HDMI_SAMPLE_RATE_176_4KHZ …
#define HDMI_SAMPLE_RATE_192KHZ …

int msm_hdmi_audio_update(struct hdmi *hdmi);
int msm_hdmi_audio_info_setup(struct hdmi *hdmi, bool enabled,
	uint32_t num_of_channels, uint32_t channel_allocation,
	uint32_t level_shift, bool down_mix);
void msm_hdmi_audio_set_sample_rate(struct hdmi *hdmi, int rate);


/*
 * hdmi bridge:
 */

int msm_hdmi_bridge_init(struct hdmi *hdmi);

void msm_hdmi_hpd_irq(struct drm_bridge *bridge);
enum drm_connector_status msm_hdmi_bridge_detect(
		struct drm_bridge *bridge);
int msm_hdmi_hpd_enable(struct drm_bridge *bridge);
void msm_hdmi_hpd_disable(struct hdmi *hdmi);

/*
 * i2c adapter for ddc:
 */

void msm_hdmi_i2c_irq(struct i2c_adapter *i2c);
void msm_hdmi_i2c_destroy(struct i2c_adapter *i2c);
struct i2c_adapter *msm_hdmi_i2c_init(struct hdmi *hdmi);

/*
 * hdcp
 */
#ifdef CONFIG_DRM_MSM_HDMI_HDCP
struct hdmi_hdcp_ctrl *msm_hdmi_hdcp_init(struct hdmi *hdmi);
void msm_hdmi_hdcp_destroy(struct hdmi *hdmi);
void msm_hdmi_hdcp_on(struct hdmi_hdcp_ctrl *hdcp_ctrl);
void msm_hdmi_hdcp_off(struct hdmi_hdcp_ctrl *hdcp_ctrl);
void msm_hdmi_hdcp_irq(struct hdmi_hdcp_ctrl *hdcp_ctrl);
#else
static inline struct hdmi_hdcp_ctrl *msm_hdmi_hdcp_init(struct hdmi *hdmi)
{
	return ERR_PTR(-ENXIO);
}
static inline void msm_hdmi_hdcp_destroy(struct hdmi *hdmi) {}
static inline void msm_hdmi_hdcp_on(struct hdmi_hdcp_ctrl *hdcp_ctrl) {}
static inline void msm_hdmi_hdcp_off(struct hdmi_hdcp_ctrl *hdcp_ctrl) {}
static inline void msm_hdmi_hdcp_irq(struct hdmi_hdcp_ctrl *hdcp_ctrl) {}
#endif

#endif /* __HDMI_CONNECTOR_H__ */