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 13 enum intel_output_format; 14 enum pipe; 15 enum port; 16 struct drm_connector_state; 17 struct drm_encoder; 18 struct drm_i915_private; 19 struct drm_modeset_acquire_ctx; 20 struct drm_dp_vsc_sdp; 21 struct intel_atomic_state; 22 struct intel_connector; 23 struct intel_crtc_state; 24 struct intel_digital_port; 25 struct intel_dp; 26 struct intel_encoder; 27 28 struct 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 34 void intel_dp_adjust_compliance_config(struct intel_dp *intel_dp, 35 struct intel_crtc_state *pipe_config, 36 struct link_config_limits *limits); 37 bool intel_dp_limited_color_range(const struct intel_crtc_state *crtc_state, 38 const struct drm_connector_state *conn_state); 39 int intel_dp_min_bpp(enum intel_output_format output_format); 40 bool intel_dp_port_enabled(struct drm_i915_private *dev_priv, 41 i915_reg_t dp_reg, enum port port, 42 enum pipe *pipe); 43 bool intel_dp_init(struct drm_i915_private *dev_priv, i915_reg_t output_reg, 44 enum port port); 45 bool intel_dp_init_connector(struct intel_digital_port *dig_port, 46 struct intel_connector *intel_connector); 47 void intel_dp_set_link_params(struct intel_dp *intel_dp, 48 int link_rate, int lane_count); 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_set_power(struct intel_dp *intel_dp, u8 mode); 54 void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp, 55 const struct intel_crtc_state *crtc_state); 56 void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp, 57 const struct intel_crtc_state *crtc_state, 58 bool enable); 59 void intel_dp_encoder_reset(struct drm_encoder *encoder); 60 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder); 61 void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder); 62 void intel_dp_encoder_flush_work(struct drm_encoder *encoder); 63 int intel_dp_compute_config(struct intel_encoder *encoder, 64 struct intel_crtc_state *pipe_config, 65 struct drm_connector_state *conn_state); 66 bool intel_dp_is_edp(struct intel_dp *intel_dp); 67 bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port); 68 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *dig_port, 69 bool long_hpd); 70 void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state, 71 const struct drm_connector_state *conn_state); 72 void intel_edp_backlight_off(const struct drm_connector_state *conn_state); 73 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp); 74 void intel_edp_panel_on(struct intel_dp *intel_dp); 75 void intel_edp_panel_off(struct intel_dp *intel_dp); 76 void intel_dp_mst_suspend(struct drm_i915_private *dev_priv); 77 void intel_dp_mst_resume(struct drm_i915_private *dev_priv); 78 int intel_dp_max_link_rate(struct intel_dp *intel_dp); 79 int intel_dp_max_lane_count(struct intel_dp *intel_dp); 80 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate); 81 void intel_power_sequencer_reset(struct drm_i915_private *dev_priv); 82 u32 intel_dp_pack_aux(const u8 *src, int src_bytes); 83 84 void intel_edp_drrs_enable(struct intel_dp *intel_dp, 85 const struct intel_crtc_state *crtc_state); 86 void intel_edp_drrs_disable(struct intel_dp *intel_dp, 87 const struct intel_crtc_state *crtc_state); 88 void intel_edp_drrs_update(struct intel_dp *intel_dp, 89 const struct intel_crtc_state *crtc_state); 90 void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv, 91 unsigned int frontbuffer_bits); 92 void intel_edp_drrs_flush(struct drm_i915_private *dev_priv, 93 unsigned int frontbuffer_bits); 94 95 void 96 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp, 97 const struct intel_crtc_state *crtc_state, 98 u8 dp_train_pat); 99 void 100 intel_dp_set_signal_levels(struct intel_dp *intel_dp, 101 const struct intel_crtc_state *crtc_state); 102 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock, 103 u8 *link_bw, u8 *rate_select); 104 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp); 105 bool intel_dp_source_supports_hbr3(struct intel_dp *intel_dp); 106 107 bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp); 108 int intel_dp_link_required(int pixel_clock, int bpp); 109 int intel_dp_max_data_rate(int max_link_clock, int max_lanes); 110 bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp); 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_compute_psr_vsc_sdp(struct intel_dp *intel_dp, 114 const struct intel_crtc_state *crtc_state, 115 const struct drm_connector_state *conn_state, 116 struct drm_dp_vsc_sdp *vsc); 117 void intel_write_dp_vsc_sdp(struct intel_encoder *encoder, 118 const struct intel_crtc_state *crtc_state, 119 struct drm_dp_vsc_sdp *vsc); 120 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable, 121 const struct intel_crtc_state *crtc_state, 122 const struct drm_connector_state *conn_state); 123 void intel_read_dp_sdp(struct intel_encoder *encoder, 124 struct intel_crtc_state *crtc_state, 125 unsigned int type); 126 bool intel_digital_port_connected(struct intel_encoder *encoder); 127 128 static inline unsigned int intel_dp_unused_lane_mask(int lane_count) 129 { 130 return ~((1 << lane_count) - 1) & 0xf; 131 } 132 133 u32 intel_dp_mode_to_fec_clock(u32 mode_clock); 134 135 void intel_ddi_update_pipe(struct intel_atomic_state *state, 136 struct intel_encoder *encoder, 137 const struct intel_crtc_state *crtc_state, 138 const struct drm_connector_state *conn_state); 139 140 int intel_dp_init_hdcp(struct intel_digital_port *dig_port, 141 struct intel_connector *intel_connector); 142 143 bool intel_dp_initial_fastset_check(struct intel_encoder *encoder, 144 struct intel_crtc_state *crtc_state); 145 void intel_dp_sync_state(struct intel_encoder *encoder, 146 const struct intel_crtc_state *crtc_state); 147 148 #endif /* __INTEL_DP_H__ */ 149