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#ifndef _VC4_HDMI_H_
#define _VC4_HDMI_H_
#include <drm/drm_connector.h>
#include <media/cec.h>
#include <sound/dmaengine_pcm.h>
#include <sound/soc.h>
#include "vc4_drv.h"
/* VC4 HDMI encoder KMS struct */
struct vc4_hdmi_encoder {
struct vc4_encoder base;
bool hdmi_monitor;
bool limited_rgb_range;
};
static inline struct vc4_hdmi_encoder *
to_vc4_hdmi_encoder(struct drm_encoder *encoder)
{
return container_of(encoder, struct vc4_hdmi_encoder, base.base);
}
struct vc4_hdmi;
struct vc4_hdmi_register;
struct vc4_hdmi_connector_state;
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;
/* Set to true when the CEC support is available */
bool cec_available;
/* 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;
/* Callback to get the resources (memory region, interrupts,
* clocks, etc) for that variant.
*/
int (*init_resources)(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, bool enable);
/* Callback to configure the video timings in the HDMI block */
void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
struct drm_connector_state *state,
struct drm_display_mode *mode);
/* Callback to initialize the PHY according to the connector state */
void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
struct vc4_hdmi_connector_state *vc4_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);
};
/* 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;
int samplerate;
int channels;
struct snd_dmaengine_dai_dma_data dma_data;
struct snd_pcm_substream *substream;
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_hdmi_encoder encoder;
struct drm_connector connector;
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;
int hpd_gpio;
bool hpd_active_low;
/*
* On some systems (like the RPi4), some modes are in the same
* frequency range than the WiFi channels (1440p@60Hz 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 *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;
};
static inline struct vc4_hdmi *
connector_to_vc4_hdmi(struct drm_connector *connector)
{
return container_of(connector, struct vc4_hdmi, connector);
}
static inline struct vc4_hdmi *
encoder_to_vc4_hdmi(struct drm_encoder *encoder)
{
struct vc4_hdmi_encoder *_encoder = to_vc4_hdmi_encoder(encoder);
return container_of(_encoder, struct vc4_hdmi, encoder);
}
struct vc4_hdmi_connector_state {
struct drm_connector_state base;
unsigned long long pixel_rate;
};
static inline struct vc4_hdmi_connector_state *
conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state)
{
return container_of(conn_state, struct vc4_hdmi_connector_state, base);
}
void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
struct vc4_hdmi_connector_state *vc4_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 vc4_hdmi_connector_state *vc4_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);
#endif /* _VC4_HDMI_H_ */
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