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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#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"
#define HDMI_MAX_NUM_GPIO 6
struct hdmi_phy;
struct hdmi_platform_config;
struct hdmi_gpio_data {
struct gpio_desc *gpiod;
bool output;
int value;
};
struct hdmi_audio {
bool enabled;
struct hdmi_audio_infoframe infoframe;
int rate;
};
struct hdmi_hdcp_ctrl;
struct hdmi {
struct drm_device *dev;
struct platform_device *pdev;
struct platform_device *audio_pdev;
const struct hdmi_platform_config *config;
/* audio state: */
struct hdmi_audio audio;
/* video state: */
bool power_on;
unsigned long int pixclock;
void __iomem *mmio;
void __iomem *qfprom_mmio;
phys_addr_t mmio_phy_addr;
struct regulator_bulk_data *hpd_regs;
struct regulator_bulk_data *pwr_regs;
struct clk **hpd_clks;
struct clk **pwr_clks;
struct hdmi_phy *phy;
struct device *phy_dev;
struct i2c_adapter *i2c;
struct drm_connector *connector;
struct drm_bridge *bridge;
/* the encoder we are hooked to (outside of hdmi block) */
struct drm_encoder *encoder;
bool hdmi_mode; /* are we in hdmi mode? */
int irq;
struct workqueue_struct *workq;
struct hdmi_hdcp_ctrl *hdcp_ctrl;
/*
* spinlock to protect registers shared by different execution
* REG_HDMI_CTRL
* REG_HDMI_DDC_ARBITRATION
* REG_HDMI_HDCP_INT_CTRL
* REG_HDMI_HPD_CTRL
*/
spinlock_t reg_lock;
};
/* platform config data (ie. from DT, or pdata) */
struct hdmi_platform_config {
const char *mmio_name;
const char *qfprom_mmio_name;
/* regulators that need to be on for hpd: */
const char **hpd_reg_names;
int hpd_reg_cnt;
/* regulators that need to be on for screen pwr: */
const char **pwr_reg_names;
int pwr_reg_cnt;
/* clks that need to be on for hpd: */
const char **hpd_clk_names;
const long unsigned *hpd_freq;
int hpd_clk_cnt;
/* clks that need to be on for screen pwr (ie pixel clk): */
const char **pwr_clk_names;
int pwr_clk_cnt;
/* gpio's: */
struct hdmi_gpio_data gpios[HDMI_MAX_NUM_GPIO];
};
struct hdmi_bridge {
struct drm_bridge base;
struct hdmi *hdmi;
struct work_struct hpd_work;
};
#define to_hdmi_bridge(x) container_of(x, struct hdmi_bridge, base)
void msm_hdmi_set_mode(struct hdmi *hdmi, bool power_on);
static inline void hdmi_write(struct hdmi *hdmi, u32 reg, u32 data)
{
msm_writel(data, hdmi->mmio + reg);
}
static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg)
{
return msm_readl(hdmi->mmio + reg);
}
static inline u32 hdmi_qfprom_read(struct hdmi *hdmi, u32 reg)
{
return msm_readl(hdmi->qfprom_mmio + reg);
}
/*
* hdmi phy:
*/
enum hdmi_phy_type {
MSM_HDMI_PHY_8x60,
MSM_HDMI_PHY_8960,
MSM_HDMI_PHY_8x74,
MSM_HDMI_PHY_8996,
MSM_HDMI_PHY_MAX,
};
struct hdmi_phy_cfg {
enum hdmi_phy_type type;
void (*powerup)(struct hdmi_phy *phy, unsigned long int pixclock);
void (*powerdown)(struct hdmi_phy *phy);
const char * const *reg_names;
int num_regs;
const char * const *clk_names;
int num_clks;
};
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 {
struct platform_device *pdev;
void __iomem *mmio;
struct hdmi_phy_cfg *cfg;
const struct hdmi_phy_funcs *funcs;
struct regulator_bulk_data *regs;
struct clk **clks;
};
static inline void hdmi_phy_write(struct hdmi_phy *phy, u32 reg, u32 data)
{
msm_writel(data, phy->mmio + reg);
}
static inline u32 hdmi_phy_read(struct hdmi_phy *phy, u32 reg)
{
return msm_readl(phy->mmio + 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 0
#define MSM_HDMI_AUDIO_CHANNEL_4 1
#define MSM_HDMI_AUDIO_CHANNEL_6 2
#define MSM_HDMI_AUDIO_CHANNEL_8 3
#define HDMI_SAMPLE_RATE_32KHZ 0
#define HDMI_SAMPLE_RATE_44_1KHZ 1
#define HDMI_SAMPLE_RATE_48KHZ 2
#define HDMI_SAMPLE_RATE_88_2KHZ 3
#define HDMI_SAMPLE_RATE_96KHZ 4
#define HDMI_SAMPLE_RATE_176_4KHZ 5
#define HDMI_SAMPLE_RATE_192KHZ 6
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:
*/
struct drm_bridge *msm_hdmi_bridge_init(struct hdmi *hdmi);
void msm_hdmi_bridge_destroy(struct drm_bridge *bridge);
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_bridge *hdmi_bridge);
/*
* 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__ */
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