Quelle  intel_hdmi.h   Sprache: C

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2019 Intel Corporation
 */

#ifndef __INTEL_HDMI_H__
#define __INTEL_HDMI_H__

#include <linux/types.h>

enum hdmi_infoframe_type;
enum intel_output_format;
enum port;
struct drm_connector;
struct drm_connector_state;
struct drm_encoder;
struct intel_connector;
struct intel_crtc_state;
struct intel_digital_port;
struct intel_encoder;
struct intel_hdmi;
union hdmi_infoframe;

bool intel_hdmi_init_connector(struct intel_digital_port *dig_port,
          struct intel_connector *intel_connector);
bool intel_hdmi_compute_has_hdmi_sink(struct intel_encoder *encoder,
          const struct intel_crtc_state *crtc_state,
          const struct drm_connector_state *conn_state);
int intel_hdmi_compute_config(struct intel_encoder *encoder,
         struct intel_crtc_state *pipe_config,
         struct drm_connector_state *conn_state);
void intel_hdmi_encoder_shutdown(struct intel_encoder *encoder);
bool intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
           struct drm_connector *connector,
           bool high_tmds_clock_ratio,
           bool scrambling);
void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
void intel_infoframe_init(struct intel_digital_port *dig_port);
u32 intel_hdmi_infoframes_enabled(struct intel_encoder *encoder,
      const struct intel_crtc_state *crtc_state);
u32 intel_hdmi_infoframe_enable(unsigned int type);
void intel_hdmi_read_gcp_infoframe(struct intel_encoder *encoder,
       struct intel_crtc_state *crtc_state);
void intel_hdmi_fastset_infoframes(struct intel_encoder *encoder,
       const struct intel_crtc_state *crtc_state,
       const struct drm_connector_state *conn_state);
void intel_read_infoframe(struct intel_encoder *encoder,
     const struct intel_crtc_state *crtc_state,
     enum hdmi_infoframe_type type,
     union hdmi_infoframe *frame);
bool intel_hdmi_limited_color_range(const struct intel_crtc_state *crtc_state,
        const struct drm_connector_state *conn_state);
bool intel_hdmi_bpc_possible(const struct intel_crtc_state *crtc_state,
        int bpc, bool has_hdmi_sink);
int intel_hdmi_tmds_clock(int clock, int bpc, enum intel_output_format sink_format);
int intel_hdmi_dsc_get_bpp(int src_fractional_bpp, int slice_width,
      int num_slices, int output_format, bool hdmi_all_bpp,
      int hdmi_max_chunk_bytes);
int intel_hdmi_dsc_get_num_slices(const struct intel_crtc_state *crtc_state,
      int src_max_slices, int src_max_slice_width,
      int hdmi_max_slices, int hdmi_throughput);
int intel_hdmi_dsc_get_slice_height(int vactive);

void hsw_write_infoframe(struct intel_encoder *encoder,
    const struct intel_crtc_state *crtc_state,
    unsigned int type,
    const void *frame, ssize_t len);
void hsw_read_infoframe(struct intel_encoder *encoder,
   const struct intel_crtc_state *crtc_state,
   unsigned int type,
   void *frame, ssize_t len);

#endif /* __INTEL_HDMI_H__ */