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_rate, max_rate; 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_init_connector(struct intel_digital_port *dig_port, 41 struct intel_connector *intel_connector); 42 void intel_dp_set_link_params(struct intel_dp *intel_dp, 43 int link_rate, int lane_count); 44 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp, 45 int link_rate, u8 lane_count); 46 int intel_dp_retrain_link(struct intel_encoder *encoder, 47 struct drm_modeset_acquire_ctx *ctx); 48 void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode); 49 void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp, 50 const struct intel_crtc_state *crtc_state); 51 void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp, 52 const struct intel_crtc_state *crtc_state, 53 bool enable); 54 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder); 55 void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder); 56 void intel_dp_encoder_flush_work(struct drm_encoder *encoder); 57 int intel_dp_compute_config(struct intel_encoder *encoder, 58 struct intel_crtc_state *pipe_config, 59 struct drm_connector_state *conn_state); 60 bool intel_dp_is_edp(struct intel_dp *intel_dp); 61 bool intel_dp_is_uhbr(const struct intel_crtc_state *crtc_state); 62 bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port); 63 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *dig_port, 64 bool long_hpd); 65 void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state, 66 const struct drm_connector_state *conn_state); 67 void intel_edp_backlight_off(const struct drm_connector_state *conn_state); 68 void intel_dp_mst_suspend(struct drm_i915_private *dev_priv); 69 void intel_dp_mst_resume(struct drm_i915_private *dev_priv); 70 int intel_dp_max_link_rate(struct intel_dp *intel_dp); 71 int intel_dp_max_lane_count(struct intel_dp *intel_dp); 72 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate); 73 74 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock, 75 u8 *link_bw, u8 *rate_select); 76 bool intel_dp_source_supports_tps3(struct drm_i915_private *i915); 77 bool intel_dp_source_supports_tps4(struct drm_i915_private *i915); 78 79 bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp); 80 int intel_dp_link_required(int pixel_clock, int bpp); 81 int intel_dp_max_data_rate(int max_link_rate, int max_lanes); 82 bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp); 83 bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state, 84 const struct drm_connector_state *conn_state); 85 void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp, 86 const struct intel_crtc_state *crtc_state, 87 const struct drm_connector_state *conn_state, 88 struct drm_dp_vsc_sdp *vsc); 89 void intel_write_dp_vsc_sdp(struct intel_encoder *encoder, 90 const struct intel_crtc_state *crtc_state, 91 const struct drm_dp_vsc_sdp *vsc); 92 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable, 93 const struct intel_crtc_state *crtc_state, 94 const struct drm_connector_state *conn_state); 95 void intel_read_dp_sdp(struct intel_encoder *encoder, 96 struct intel_crtc_state *crtc_state, 97 unsigned int type); 98 bool intel_digital_port_connected(struct intel_encoder *encoder); 99 100 static inline unsigned int intel_dp_unused_lane_mask(int lane_count) 101 { 102 return ~((1 << lane_count) - 1) & 0xf; 103 } 104 105 u32 intel_dp_mode_to_fec_clock(u32 mode_clock); 106 107 void intel_ddi_update_pipe(struct intel_atomic_state *state, 108 struct intel_encoder *encoder, 109 const struct intel_crtc_state *crtc_state, 110 const struct drm_connector_state *conn_state); 111 112 bool intel_dp_initial_fastset_check(struct intel_encoder *encoder, 113 struct intel_crtc_state *crtc_state); 114 void intel_dp_sync_state(struct intel_encoder *encoder, 115 const struct intel_crtc_state *crtc_state); 116 117 void intel_dp_check_frl_training(struct intel_dp *intel_dp); 118 void intel_dp_pcon_dsc_configure(struct intel_dp *intel_dp, 119 const struct intel_crtc_state *crtc_state); 120 void intel_dp_phy_test(struct intel_encoder *encoder); 121 122 #endif /* __INTEL_DP_H__ */ 123