drivers/gpu/drm/i915/display/intel_dp.h

   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 enum intel_output_format;
  12 enum pipe;
  13 enum port;
  14 struct drm_connector_state;
  15 struct drm_encoder;
  16 struct drm_i915_private;
  17 struct drm_modeset_acquire_ctx;
  18 struct drm_dp_vsc_sdp;
  19 struct intel_atomic_state;
  20 struct intel_connector;
  21 struct intel_crtc_state;
  22 struct intel_digital_port;
  23 struct intel_dp;
  24 struct intel_encoder;
  25
  26 struct link_config_limits {
  27         int min_rate, max_rate;
  28         int min_lane_count, max_lane_count;
  29         int min_bpp, max_bpp;
  30 };
  31
  32 void intel_dp_adjust_compliance_config(struct intel_dp *intel_dp,
  33                                        struct intel_crtc_state *pipe_config,
  34                                        struct link_config_limits *limits);
  35 bool intel_dp_limited_color_range(const struct intel_crtc_state *crtc_state,
  36                                   const struct drm_connector_state *conn_state);
  37 int intel_dp_min_bpp(enum intel_output_format output_format);
  38 bool intel_dp_init_connector(struct intel_digital_port *dig_port,
  39                              struct intel_connector *intel_connector);
  40 void intel_dp_set_link_params(struct intel_dp *intel_dp,
  41                               int link_rate, int lane_count);
  42 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
  43                                             int link_rate, u8 lane_count);
  44 int intel_dp_retrain_link(struct intel_encoder *encoder,
  45                           struct drm_modeset_acquire_ctx *ctx);
  46 void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
  47 void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp,
  48                                            const struct intel_crtc_state *crtc_state);
  49 void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp,
  50                                            const struct intel_crtc_state *crtc_state,
  51                                            bool enable);
  52 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
  53 void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder);
  54 void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
  55 int intel_dp_compute_config(struct intel_encoder *encoder,
  56                             struct intel_crtc_state *pipe_config,
  57                             struct drm_connector_state *conn_state);
  58 bool intel_dp_is_edp(struct intel_dp *intel_dp);
  59 bool intel_dp_is_uhbr(const struct intel_crtc_state *crtc_state);
  60 bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
  61 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *dig_port,
  62                                   bool long_hpd);
  63 void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
  64                             const struct drm_connector_state *conn_state);
  65 void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
  66 void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
  67 void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
  68 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
  69 int intel_dp_max_lane_count(struct intel_dp *intel_dp);
  70 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
  71
  72 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
  73                            u8 *link_bw, u8 *rate_select);
  74 bool intel_dp_source_supports_tps3(struct drm_i915_private *i915);
  75 bool intel_dp_source_supports_tps4(struct drm_i915_private *i915);
  76
  77 bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp);
  78 int intel_dp_link_required(int pixel_clock, int bpp);
  79 int intel_dp_max_data_rate(int max_link_rate, int max_lanes);
  80 bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp);
  81 bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
  82                             const struct drm_connector_state *conn_state);
  83 void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp,
  84                                   const struct intel_crtc_state *crtc_state,
  85                                   const struct drm_connector_state *conn_state,
  86                                   struct drm_dp_vsc_sdp *vsc);
  87 void intel_write_dp_vsc_sdp(struct intel_encoder *encoder,
  88                             const struct intel_crtc_state *crtc_state,
  89                             const struct drm_dp_vsc_sdp *vsc);
  90 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
  91                              const struct intel_crtc_state *crtc_state,
  92                              const struct drm_connector_state *conn_state);
  93 void intel_read_dp_sdp(struct intel_encoder *encoder,
  94                        struct intel_crtc_state *crtc_state,
  95                        unsigned int type);
  96 bool intel_digital_port_connected(struct intel_encoder *encoder);
  97
  98 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
  99 {
 100         return ~((1 << lane_count) - 1) & 0xf;
 101 }
 102
 103 u32 intel_dp_mode_to_fec_clock(u32 mode_clock);
 104
 105 void intel_ddi_update_pipe(struct intel_atomic_state *state,
 106                            struct intel_encoder *encoder,
 107                            const struct intel_crtc_state *crtc_state,
 108                            const struct drm_connector_state *conn_state);
 109
 110 bool intel_dp_initial_fastset_check(struct intel_encoder *encoder,
 111                                     struct intel_crtc_state *crtc_state);
 112 void intel_dp_sync_state(struct intel_encoder *encoder,
 113                          const struct intel_crtc_state *crtc_state);
 114
 115 void intel_dp_check_frl_training(struct intel_dp *intel_dp);
 116 void intel_dp_pcon_dsc_configure(struct intel_dp *intel_dp,
 117                                  const struct intel_crtc_state *crtc_state);
 118 void intel_dp_phy_test(struct intel_encoder *encoder);
 119
 120 void intel_dp_wait_source_oui(struct intel_dp *intel_dp);
 121
 122 #endif /* __INTEL_DP_H__ */