#ifndef _VC4_HDMI_H_
#define _VC4_HDMI_H_
#include <drm/drm_connector.h>
#include <media/cec.h>
#include <sound/dmaengine_pcm.h>
#include <sound/hdmi-codec.h>
#include <sound/soc.h>
#include "vc4_drv.h"
struct vc4_hdmi;
struct vc4_hdmi_register;
enum vc4_hdmi_phy_channel {
PHY_LANE_0 = 0 ,
PHY_LANE_1,
PHY_LANE_2,
PHY_LANE_CK,
};
struct vc4_hdmi_variant {
/* Encoder Type for that controller */
enum vc4_encoder_type encoder_type;
/* ALSA card name */
const char *card_name;
/* Filename to expose the registers in debugfs */
const char *debugfs_name;
/* Maximum pixel clock supported by the controller (in Hz) */
unsigned long long max_pixel_clock;
/* List of the registers available on that variant */
const struct vc4_hdmi_register *registers;
/* Number of registers on that variant */
unsigned int num_registers;
/* BCM2711 Only.
* The variants don ' t map the lane in the same order in the
* PHY , so this is an array mapping the HDMI channel ( index )
* to the PHY lane ( value ) .
*/
enum vc4_hdmi_phy_channel phy_lane_mapping[4 ];
/* The BCM2711 cannot deal with odd horizontal pixel timings */
bool unsupported_odd_h_timings;
/*
* The BCM2711 CEC / hotplug IRQ controller is shared between the
* two HDMI controllers , and we have a proper irqchip driver for
* it .
*/
bool external_irq_controller;
/* Callback to get the resources (memory region, interrupts,
* clocks , etc ) for that variant .
*/
int (*init_resources)(struct drm_device *drm,
struct vc4_hdmi *vc4_hdmi);
/* Callback to reset the HDMI block */
void (*reset)(struct vc4_hdmi *vc4_hdmi);
/* Callback to enable / disable the CSC */
void (*csc_setup)(struct vc4_hdmi *vc4_hdmi,
struct drm_connector_state *state,
const struct drm_display_mode *mode);
/* Callback to configure the video timings in the HDMI block */
void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
struct drm_connector_state *state,
const struct drm_display_mode *mode);
/* Callback to initialize the PHY according to the connector state */
void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
struct drm_connector_state *conn_state);
/* Callback to disable the PHY */
void (*phy_disable)(struct vc4_hdmi *vc4_hdmi);
/* Callback to enable the RNG in the PHY */
void (*phy_rng_enable)(struct vc4_hdmi *vc4_hdmi);
/* Callback to disable the RNG in the PHY */
void (*phy_rng_disable)(struct vc4_hdmi *vc4_hdmi);
/* Callback to get channel map */
u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
/* Enables HDR metadata */
bool supports_hdr;
/* Callback for hardware specific hotplug detect */
bool (*hp_detect)(struct vc4_hdmi *vc4_hdmi);
};
/* HDMI audio information */
struct vc4_hdmi_audio {
struct snd_soc_card card;
struct snd_soc_dai_link link;
struct snd_soc_dai_link_component cpu;
struct snd_soc_dai_link_component codec;
struct snd_soc_dai_link_component platform;
struct snd_dmaengine_dai_dma_data dma_data;
bool streaming;
};
/* General HDMI hardware state. */
struct vc4_hdmi {
struct vc4_hdmi_audio audio;
struct platform_device *pdev;
const struct vc4_hdmi_variant *variant;
struct vc4_encoder encoder;
struct drm_connector connector;
struct delayed_work scrambling_work;
struct i2c_adapter *ddc;
void __iomem *hdmicore_regs;
void __iomem *hd_regs;
/* VC5 Only */
void __iomem *cec_regs;
/* VC5 Only */
void __iomem *csc_regs;
/* VC5 Only */
void __iomem *dvp_regs;
/* VC5 Only */
void __iomem *phy_regs;
/* VC5 Only */
void __iomem *ram_regs;
/* VC5 Only */
void __iomem *rm_regs;
struct gpio_desc *hpd_gpio;
/*
* On some systems ( like the RPi4 ) , some modes are in the same
* frequency range than the WiFi channels ( 1440 p @ 60 Hz for
* example ) . Should we take evasive actions because that system
* has a wifi adapter ?
*/
bool disable_wifi_frequencies;
struct cec_adapter *cec_adap;
struct cec_msg cec_rx_msg;
bool cec_tx_ok;
bool cec_irq_was_rx;
struct clk *cec_clock;
struct clk *pixel_clock;
struct clk *hsm_clock;
struct clk *audio_clock;
struct clk *pixel_bvb_clock;
struct reset_control *reset;
struct debugfs_regset32 hdmi_regset;
struct debugfs_regset32 hd_regset;
/* VC5 only */
struct debugfs_regset32 cec_regset;
struct debugfs_regset32 csc_regset;
struct debugfs_regset32 dvp_regset;
struct debugfs_regset32 phy_regset;
struct debugfs_regset32 ram_regset;
struct debugfs_regset32 rm_regset;
/**
* @ hw_lock : Spinlock protecting device register access .
*/
spinlock_t hw_lock;
/**
* @ mutex : Mutex protecting the driver access across multiple
* frameworks ( KMS , ALSA , CEC ) .
*/
struct mutex mutex;
/**
* @ saved_adjusted_mode : Copy of @ drm_crtc_state . adjusted_mode
* for use by ALSA hooks and interrupt handlers . Protected by @ mutex .
*/
struct drm_display_mode saved_adjusted_mode;
/**
* @ packet_ram_enabled : Is the HDMI controller packet RAM currently
* on ? Protected by @ mutex .
*/
bool packet_ram_enabled;
/**
* @ scdc_enabled : Is the HDMI controller currently running with
* the scrambler on ? Protected by @ mutex .
*/
bool scdc_enabled;
/**
* @ output_bpc : Copy of @ drm_connector_state . hdmi . output_bpc for
* use outside of KMS hooks . Protected by @ mutex .
*/
unsigned int output_bpc;
/**
* @ output_format : Copy of
* @ drm_connector_state . hdmi . output_format for use outside of
* KMS hooks . Protected by @ mutex .
*/
enum hdmi_colorspace output_format;
/**
* @ hdmi_jack : Represents the connection state of the HDMI plug , for
* ALSA jack detection .
*/
struct snd_soc_jack hdmi_jack;
};
#define connector_to_vc4_hdmi(_connector) \
container_of_const(_connector, struct vc4_hdmi, connector)
static inline struct vc4_hdmi *
encoder_to_vc4_hdmi(struct drm_encoder *encoder)
{
struct vc4_encoder *_encoder = to_vc4_encoder(encoder);
return container_of_const(_encoder, struct vc4_hdmi, encoder);
}
void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
struct drm_connector_state *conn_state);
void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
struct drm_connector_state *conn_state);
void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
void vc6_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
struct drm_connector_state *conn_state);
void vc6_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
#endif /* _VC4_HDMI_H_ */
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