/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2013 Red Hat * Author: Rob Clark */ #ifndef __HDMI_CONNECTOR_H__ #define __HDMI_CONNECTOR_H__ #include #include #include #include #include #include #include #include "msm_drv.h" #include "hdmi.xml.h" struct hdmi_phy; struct hdmi_platform_config; 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 **hpd_regs; struct regulator **pwr_regs; struct clk **hpd_clks; struct clk **pwr_clks; struct gpio_desc *hpd_gpiod; 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; }; 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 **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__ */