1/* SPDX-License-Identifier: MIT */
  2/*
  3 * Copyright © 2019 Intel Corporation
  4 */
  5
  6#ifndef __INTEL_DP_H__
  7#define __INTEL_DP_H__
  8
  9#include <linux/types.h>
 10
 11#include "i915_reg.h"
 12
 13enum intel_output_format;
 14enum pipe;
 15enum port;
 16struct drm_connector_state;
 17struct drm_encoder;
 18struct drm_i915_private;
 19struct drm_modeset_acquire_ctx;
 20struct drm_dp_vsc_sdp;
 21struct intel_atomic_state;
 22struct intel_connector;
 23struct intel_crtc_state;
 24struct intel_digital_port;
 25struct intel_dp;
 26struct intel_encoder;
 27
 28struct link_config_limits {
 29	int min_clock, max_clock;
 30	int min_lane_count, max_lane_count;
 31	int min_bpp, max_bpp;
 32};
 33
 34void intel_dp_adjust_compliance_config(struct intel_dp *intel_dp,
 35				       struct intel_crtc_state *pipe_config,
 36				       struct link_config_limits *limits);
 37bool intel_dp_limited_color_range(const struct intel_crtc_state *crtc_state,
 38				  const struct drm_connector_state *conn_state);
 39int intel_dp_min_bpp(enum intel_output_format output_format);
 40bool intel_dp_init_connector(struct intel_digital_port *dig_port,
 41			     struct intel_connector *intel_connector);
 42void intel_dp_set_link_params(struct intel_dp *intel_dp,
 43			      int link_rate, int lane_count);
 44int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
 45					    int link_rate, u8 lane_count);
 46int intel_dp_retrain_link(struct intel_encoder *encoder,
 47			  struct drm_modeset_acquire_ctx *ctx);
 48void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
 49void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp,
 50					   const struct intel_crtc_state *crtc_state);
 51void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp,
 52					   const struct intel_crtc_state *crtc_state,
 53					   bool enable);
 54void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
 55void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder);
 56void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
 57int intel_dp_compute_config(struct intel_encoder *encoder,
 58			    struct intel_crtc_state *pipe_config,
 59			    struct drm_connector_state *conn_state);
 60bool intel_dp_is_edp(struct intel_dp *intel_dp);
 61bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
 62enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *dig_port,
 63				  bool long_hpd);
 64void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
 65			    const struct drm_connector_state *conn_state);
 66void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
 67void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
 68void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
 69int intel_dp_max_link_rate(struct intel_dp *intel_dp);
 70int intel_dp_max_lane_count(struct intel_dp *intel_dp);
 71int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
 72
 73void intel_edp_drrs_enable(struct intel_dp *intel_dp,
 74			   const struct intel_crtc_state *crtc_state);
 75void intel_edp_drrs_disable(struct intel_dp *intel_dp,
 76			    const struct intel_crtc_state *crtc_state);
 77void intel_edp_drrs_update(struct intel_dp *intel_dp,
 78			   const struct intel_crtc_state *crtc_state);
 79void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
 80			       unsigned int frontbuffer_bits);
 81void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
 82			  unsigned int frontbuffer_bits);
 83
 84void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
 85			   u8 *link_bw, u8 *rate_select);
 86bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
 87bool intel_dp_source_supports_hbr3(struct intel_dp *intel_dp);
 88
 89bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp);
 90int intel_dp_link_required(int pixel_clock, int bpp);
 91int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
 92bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp);
 93bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
 94			    const struct drm_connector_state *conn_state);
 95void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp,
 96				  const struct intel_crtc_state *crtc_state,
 97				  const struct drm_connector_state *conn_state,
 98				  struct drm_dp_vsc_sdp *vsc);
 99void intel_write_dp_vsc_sdp(struct intel_encoder *encoder,
100			    const struct intel_crtc_state *crtc_state,
101			    struct drm_dp_vsc_sdp *vsc);
102void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
103			     const struct intel_crtc_state *crtc_state,
104			     const struct drm_connector_state *conn_state);
105void intel_read_dp_sdp(struct intel_encoder *encoder,
106		       struct intel_crtc_state *crtc_state,
107		       unsigned int type);
108bool intel_digital_port_connected(struct intel_encoder *encoder);
109
110static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
111{
112	return ~((1 << lane_count) - 1) & 0xf;
113}
114
115u32 intel_dp_mode_to_fec_clock(u32 mode_clock);
116
117void intel_ddi_update_pipe(struct intel_atomic_state *state,
118			   struct intel_encoder *encoder,
119			   const struct intel_crtc_state *crtc_state,
120			   const struct drm_connector_state *conn_state);
121
122bool intel_dp_initial_fastset_check(struct intel_encoder *encoder,
123				    struct intel_crtc_state *crtc_state);
124void intel_dp_sync_state(struct intel_encoder *encoder,
125			 const struct intel_crtc_state *crtc_state);
126
127void intel_dp_check_frl_training(struct intel_dp *intel_dp);
128void intel_dp_pcon_dsc_configure(struct intel_dp *intel_dp,
129				 const struct intel_crtc_state *crtc_state);
130void intel_dp_phy_test(struct intel_encoder *encoder);
131
132#endif /* __INTEL_DP_H__ */