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_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 79 void intel_edp_drrs_enable(struct intel_dp *intel_dp, 80 const struct intel_crtc_state *crtc_state); 81 void intel_edp_drrs_disable(struct intel_dp *intel_dp, 82 const struct intel_crtc_state *crtc_state); 83 void intel_edp_drrs_update(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 const struct intel_crtc_state *crtc_state, 93 u8 dp_train_pat); 94 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock, 95 u8 *link_bw, u8 *rate_select); 96 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp); 97 bool intel_dp_source_supports_hbr3(struct intel_dp *intel_dp); 98 99 bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp); 100 int intel_dp_link_required(int pixel_clock, int bpp); 101 int intel_dp_max_data_rate(int max_link_clock, int max_lanes); 102 bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp); 103 bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state, 104 const struct drm_connector_state *conn_state); 105 void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp, 106 const struct intel_crtc_state *crtc_state, 107 const struct drm_connector_state *conn_state, 108 struct drm_dp_vsc_sdp *vsc); 109 void intel_write_dp_vsc_sdp(struct intel_encoder *encoder, 110 const struct intel_crtc_state *crtc_state, 111 struct drm_dp_vsc_sdp *vsc); 112 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable, 113 const struct intel_crtc_state *crtc_state, 114 const struct drm_connector_state *conn_state); 115 void intel_read_dp_sdp(struct intel_encoder *encoder, 116 struct intel_crtc_state *crtc_state, 117 unsigned int type); 118 bool intel_digital_port_connected(struct intel_encoder *encoder); 119 120 static inline unsigned int intel_dp_unused_lane_mask(int lane_count) 121 { 122 return ~((1 << lane_count) - 1) & 0xf; 123 } 124 125 u32 intel_dp_mode_to_fec_clock(u32 mode_clock); 126 127 void intel_ddi_update_pipe(struct intel_atomic_state *state, 128 struct intel_encoder *encoder, 129 const struct intel_crtc_state *crtc_state, 130 const struct drm_connector_state *conn_state); 131 132 int intel_dp_init_hdcp(struct intel_digital_port *dig_port, 133 struct intel_connector *intel_connector); 134 135 bool intel_dp_initial_fastset_check(struct intel_encoder *encoder, 136 struct intel_crtc_state *crtc_state); 137 void intel_dp_sync_state(struct intel_encoder *encoder, 138 const struct intel_crtc_state *crtc_state); 139 const struct dpll *vlv_get_dpll(struct drm_i915_private *i915); 140 141 void intel_dp_check_frl_training(struct intel_dp *intel_dp); 142 void intel_dp_pcon_dsc_configure(struct intel_dp *intel_dp, 143 const struct intel_crtc_state *crtc_state); 144 void intel_dp_phy_test(struct intel_encoder *encoder); 145 146 #endif /* __INTEL_DP_H__ */ 147