xref: /linux/drivers/gpu/drm/i915/display/intel_ddi.h (revision 95298d63c67673c654c08952672d016212b26054)
1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2019 Intel Corporation
4  */
5 
6 #ifndef __INTEL_DDI_H__
7 #define __INTEL_DDI_H__
8 
9 #include "intel_display.h"
10 
11 struct drm_connector_state;
12 struct drm_i915_private;
13 struct intel_connector;
14 struct intel_crtc;
15 struct intel_crtc_state;
16 struct intel_dp;
17 struct intel_dpll_hw_state;
18 struct intel_encoder;
19 
20 void intel_ddi_fdi_post_disable(struct intel_atomic_state *state,
21 				struct intel_encoder *intel_encoder,
22 				const struct intel_crtc_state *old_crtc_state,
23 				const struct drm_connector_state *old_conn_state);
24 void hsw_fdi_link_train(struct intel_encoder *encoder,
25 			const struct intel_crtc_state *crtc_state);
26 void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port);
27 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
28 void intel_ddi_enable_transcoder_func(struct intel_encoder *encoder,
29 				      const struct intel_crtc_state *crtc_state);
30 void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state);
31 void intel_ddi_enable_pipe_clock(struct intel_encoder *encoder,
32 				 const struct intel_crtc_state *crtc_state);
33 void intel_ddi_disable_pipe_clock(const  struct intel_crtc_state *crtc_state);
34 void intel_ddi_set_dp_msa(const struct intel_crtc_state *crtc_state,
35 			  const struct drm_connector_state *conn_state);
36 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
37 void intel_ddi_get_config(struct intel_encoder *encoder,
38 			  struct intel_crtc_state *pipe_config);
39 void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state,
40 				    bool state);
41 void intel_ddi_compute_min_voltage_level(struct drm_i915_private *dev_priv,
42 					 struct intel_crtc_state *crtc_state);
43 u32 bxt_signal_levels(struct intel_dp *intel_dp);
44 u32 ddi_signal_levels(struct intel_dp *intel_dp);
45 u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder);
46 u8 intel_ddi_dp_pre_emphasis_max(struct intel_encoder *encoder,
47 				 u8 voltage_swing);
48 int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
49 				     bool enable);
50 void icl_sanitize_encoder_pll_mapping(struct intel_encoder *encoder);
51 
52 #endif /* __INTEL_DDI_H__ */
53