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_edp_fixup_vbt_bpp(struct intel_encoder *encoder, int pipe_bpp);
33 void intel_dp_adjust_compliance_config(struct intel_dp *intel_dp,
34 				       struct intel_crtc_state *pipe_config,
35 				       struct link_config_limits *limits);
36 bool intel_dp_limited_color_range(const struct intel_crtc_state *crtc_state,
37 				  const struct drm_connector_state *conn_state);
38 int intel_dp_min_bpp(enum intel_output_format output_format);
39 bool intel_dp_init_connector(struct intel_digital_port *dig_port,
40 			     struct intel_connector *intel_connector);
41 void intel_dp_set_link_params(struct intel_dp *intel_dp,
42 			      int link_rate, int lane_count);
43 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
44 					    int link_rate, u8 lane_count);
45 int intel_dp_retrain_link(struct intel_encoder *encoder,
46 			  struct drm_modeset_acquire_ctx *ctx);
47 void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
48 void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp,
49 					   const struct intel_crtc_state *crtc_state);
50 void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp,
51 					   const struct intel_crtc_state *crtc_state,
52 					   bool enable);
53 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
54 void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder);
55 void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
56 int intel_dp_compute_config(struct intel_encoder *encoder,
57 			    struct intel_crtc_state *pipe_config,
58 			    struct drm_connector_state *conn_state);
59 int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
60 				struct intel_crtc_state *pipe_config,
61 				struct drm_connector_state *conn_state,
62 				struct link_config_limits *limits,
63 				int timeslots,
64 				bool recompute_pipe_bpp);
65 bool intel_dp_is_edp(struct intel_dp *intel_dp);
66 bool intel_dp_is_uhbr(const struct intel_crtc_state *crtc_state);
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_fixup_vbt_bpp(struct intel_encoder *encoder, int pipe_bpp);
74 void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
75 void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
76 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
77 int intel_dp_max_lane_count(struct intel_dp *intel_dp);
78 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
79 
80 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
81 			   u8 *link_bw, u8 *rate_select);
82 bool intel_dp_source_supports_tps3(struct drm_i915_private *i915);
83 bool intel_dp_source_supports_tps4(struct drm_i915_private *i915);
84 
85 bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp);
86 int intel_dp_link_required(int pixel_clock, int bpp);
87 int intel_dp_max_data_rate(int max_link_rate, int max_lanes);
88 bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp);
89 bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
90 			    const struct drm_connector_state *conn_state);
91 void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp,
92 				  const struct intel_crtc_state *crtc_state,
93 				  const struct drm_connector_state *conn_state,
94 				  struct drm_dp_vsc_sdp *vsc);
95 void intel_write_dp_vsc_sdp(struct intel_encoder *encoder,
96 			    const struct intel_crtc_state *crtc_state,
97 			    const struct drm_dp_vsc_sdp *vsc);
98 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
99 			     const struct intel_crtc_state *crtc_state,
100 			     const struct drm_connector_state *conn_state);
101 void intel_read_dp_sdp(struct intel_encoder *encoder,
102 		       struct intel_crtc_state *crtc_state,
103 		       unsigned int type);
104 bool intel_digital_port_connected(struct intel_encoder *encoder);
105 int intel_dp_dsc_compute_bpp(struct intel_dp *intel_dp, u8 dsc_max_bpc);
106 u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915,
107 				u32 link_clock, u32 lane_count,
108 				u32 mode_clock, u32 mode_hdisplay,
109 				bool bigjoiner,
110 				u32 pipe_bpp,
111 				u32 timeslots);
112 u8 intel_dp_dsc_get_slice_count(struct intel_dp *intel_dp,
113 				int mode_clock, int mode_hdisplay,
114 				bool bigjoiner);
115 bool intel_dp_need_bigjoiner(struct intel_dp *intel_dp,
116 			     int hdisplay, int clock);
117 
intel_dp_unused_lane_mask(int lane_count)118 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
119 {
120 	return ~((1 << lane_count) - 1) & 0xf;
121 }
122 
123 u32 intel_dp_mode_to_fec_clock(u32 mode_clock);
124 u32 intel_dp_dsc_nearest_valid_bpp(struct drm_i915_private *i915, u32 bpp, u32 pipe_bpp);
125 
126 void intel_ddi_update_pipe(struct intel_atomic_state *state,
127 			   struct intel_encoder *encoder,
128 			   const struct intel_crtc_state *crtc_state,
129 			   const struct drm_connector_state *conn_state);
130 
131 bool intel_dp_initial_fastset_check(struct intel_encoder *encoder,
132 				    struct intel_crtc_state *crtc_state);
133 void intel_dp_sync_state(struct intel_encoder *encoder,
134 			 const struct intel_crtc_state *crtc_state);
135 
136 void intel_dp_check_frl_training(struct intel_dp *intel_dp);
137 void intel_dp_pcon_dsc_configure(struct intel_dp *intel_dp,
138 				 const struct intel_crtc_state *crtc_state);
139 void intel_dp_phy_test(struct intel_encoder *encoder);
140 
141 void intel_dp_wait_source_oui(struct intel_dp *intel_dp);
142 
143 #endif /* __INTEL_DP_H__ */
144