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       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 <drm/i915_drm.h>
      12                 :            : 
      13                 :            : #include "i915_reg.h"
      14                 :            : 
      15                 :            : enum pipe;
      16                 :            : enum port;
      17                 :            : struct drm_connector_state;
      18                 :            : struct drm_encoder;
      19                 :            : struct drm_i915_private;
      20                 :            : struct drm_modeset_acquire_ctx;
      21                 :            : struct intel_connector;
      22                 :            : struct intel_crtc_state;
      23                 :            : struct intel_digital_port;
      24                 :            : struct intel_dp;
      25                 :            : struct intel_encoder;
      26                 :            : 
      27                 :            : struct link_config_limits {
      28                 :            :         int min_clock, max_clock;
      29                 :            :         int min_lane_count, max_lane_count;
      30                 :            :         int min_bpp, max_bpp;
      31                 :            : };
      32                 :            : 
      33                 :            : void intel_dp_adjust_compliance_config(struct intel_dp *intel_dp,
      34                 :            :                                        struct intel_crtc_state *pipe_config,
      35                 :            :                                        struct link_config_limits *limits);
      36                 :            : bool intel_dp_limited_color_range(const struct intel_crtc_state *crtc_state,
      37                 :            :                                   const struct drm_connector_state *conn_state);
      38                 :            : int intel_dp_min_bpp(const struct intel_crtc_state *crtc_state);
      39                 :            : bool intel_dp_port_enabled(struct drm_i915_private *dev_priv,
      40                 :            :                            i915_reg_t dp_reg, enum port port,
      41                 :            :                            enum pipe *pipe);
      42                 :            : bool intel_dp_init(struct drm_i915_private *dev_priv, i915_reg_t output_reg,
      43                 :            :                    enum port port);
      44                 :            : bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
      45                 :            :                              struct intel_connector *intel_connector);
      46                 :            : void intel_dp_set_link_params(struct intel_dp *intel_dp,
      47                 :            :                               int link_rate, u8 lane_count,
      48                 :            :                               bool link_mst);
      49                 :            : int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
      50                 :            :                                             int link_rate, u8 lane_count);
      51                 :            : int intel_dp_retrain_link(struct intel_encoder *encoder,
      52                 :            :                           struct drm_modeset_acquire_ctx *ctx);
      53                 :            : void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
      54                 :            : void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp,
      55                 :            :                                            const struct intel_crtc_state *crtc_state,
      56                 :            :                                            bool enable);
      57                 :            : void intel_dp_encoder_reset(struct drm_encoder *encoder);
      58                 :            : void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
      59                 :            : void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
      60                 :            : int intel_dp_compute_config(struct intel_encoder *encoder,
      61                 :            :                             struct intel_crtc_state *pipe_config,
      62                 :            :                             struct drm_connector_state *conn_state);
      63                 :            : bool intel_dp_is_edp(struct intel_dp *intel_dp);
      64                 :            : bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
      65                 :            : enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
      66                 :            :                                   bool long_hpd);
      67                 :            : void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
      68                 :            :                             const struct drm_connector_state *conn_state);
      69                 :            : void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
      70                 :            : void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
      71                 :            : void intel_edp_panel_on(struct intel_dp *intel_dp);
      72                 :            : void intel_edp_panel_off(struct intel_dp *intel_dp);
      73                 :            : void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
      74                 :            : void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
      75                 :            : int intel_dp_max_link_rate(struct intel_dp *intel_dp);
      76                 :            : int intel_dp_max_lane_count(struct intel_dp *intel_dp);
      77                 :            : int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
      78                 :            : void intel_power_sequencer_reset(struct drm_i915_private *dev_priv);
      79                 :            : u32 intel_dp_pack_aux(const u8 *src, int src_bytes);
      80                 :            : 
      81                 :            : void intel_edp_drrs_enable(struct intel_dp *intel_dp,
      82                 :            :                            const struct intel_crtc_state *crtc_state);
      83                 :            : void intel_edp_drrs_disable(struct intel_dp *intel_dp,
      84                 :            :                             const struct intel_crtc_state *crtc_state);
      85                 :            : void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
      86                 :            :                                unsigned int frontbuffer_bits);
      87                 :            : void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
      88                 :            :                           unsigned int frontbuffer_bits);
      89                 :            : 
      90                 :            : void
      91                 :            : intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
      92                 :            :                                        u8 dp_train_pat);
      93                 :            : void
      94                 :            : intel_dp_set_signal_levels(struct intel_dp *intel_dp);
      95                 :            : void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
      96                 :            : u8
      97                 :            : intel_dp_voltage_max(struct intel_dp *intel_dp);
      98                 :            : u8
      99                 :            : intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, u8 voltage_swing);
     100                 :            : void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
     101                 :            :                            u8 *link_bw, u8 *rate_select);
     102                 :            : bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
     103                 :            : bool intel_dp_source_supports_hbr3(struct intel_dp *intel_dp);
     104                 :            : bool
     105                 :            : intel_dp_get_link_status(struct intel_dp *intel_dp, u8 *link_status);
     106                 :            : 
     107                 :            : bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
     108                 :            : bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp);
     109                 :            : int intel_dp_link_required(int pixel_clock, int bpp);
     110                 :            : int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
     111                 :            : bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
     112                 :            :                             const struct drm_connector_state *conn_state);
     113                 :            : void intel_dp_vsc_enable(struct intel_dp *intel_dp,
     114                 :            :                          const struct intel_crtc_state *crtc_state,
     115                 :            :                          const struct drm_connector_state *conn_state);
     116                 :            : void intel_dp_hdr_metadata_enable(struct intel_dp *intel_dp,
     117                 :            :                                   const struct intel_crtc_state *crtc_state,
     118                 :            :                                   const struct drm_connector_state *conn_state);
     119                 :            : bool intel_digital_port_connected(struct intel_encoder *encoder);
     120                 :            : 
     121                 :          0 : static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
     122                 :            : {
     123         [ #  # ]:          0 :         return ~((1 << lane_count) - 1) & 0xf;
     124                 :            : }
     125                 :            : 
     126                 :            : u32 intel_dp_mode_to_fec_clock(u32 mode_clock);
     127                 :            : 
     128                 :            : #endif /* __INTEL_DP_H__ */