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__ */ 123