xref: /linux/drivers/gpu/drm/i915/display/intel_ddi.h (revision ae22a94997b8a03dcb3c922857c203246711f9d4)
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 "i915_reg_defs.h"
10 
11 struct drm_connector_state;
12 struct drm_i915_private;
13 struct intel_atomic_state;
14 struct intel_bios_encoder_data;
15 struct intel_connector;
16 struct intel_crtc;
17 struct intel_crtc_state;
18 struct intel_dp;
19 struct intel_dpll_hw_state;
20 struct intel_encoder;
21 struct intel_shared_dpll;
22 enum pipe;
23 enum port;
24 enum transcoder;
25 
26 i915_reg_t dp_tp_ctl_reg(struct intel_encoder *encoder,
27 			 const struct intel_crtc_state *crtc_state);
28 i915_reg_t dp_tp_status_reg(struct intel_encoder *encoder,
29 			    const struct intel_crtc_state *crtc_state);
30 i915_reg_t hsw_chicken_trans_reg(struct drm_i915_private *i915,
31 				 enum transcoder cpu_transcoder);
32 void intel_ddi_fdi_post_disable(struct intel_atomic_state *state,
33 				struct intel_encoder *intel_encoder,
34 				const struct intel_crtc_state *old_crtc_state,
35 				const struct drm_connector_state *old_conn_state);
36 void intel_ddi_enable_clock(struct intel_encoder *encoder,
37 			    const struct intel_crtc_state *crtc_state);
38 void intel_ddi_disable_clock(struct intel_encoder *encoder);
39 void intel_ddi_get_clock(struct intel_encoder *encoder,
40 			 struct intel_crtc_state *crtc_state,
41 			 struct intel_shared_dpll *pll);
42 void hsw_ddi_enable_clock(struct intel_encoder *encoder,
43 			  const struct intel_crtc_state *crtc_state);
44 void hsw_ddi_disable_clock(struct intel_encoder *encoder);
45 bool hsw_ddi_is_clock_enabled(struct intel_encoder *encoder);
46 enum icl_port_dpll_id
47 intel_ddi_port_pll_type(struct intel_encoder *encoder,
48 			const struct intel_crtc_state *crtc_state);
49 void hsw_ddi_get_config(struct intel_encoder *encoder,
50 			struct intel_crtc_state *crtc_state);
51 struct intel_shared_dpll *icl_ddi_combo_get_pll(struct intel_encoder *encoder);
52 void hsw_prepare_dp_ddi_buffers(struct intel_encoder *encoder,
53 				const struct intel_crtc_state *crtc_state);
54 void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv,
55 			     enum port port);
56 void intel_ddi_init(struct drm_i915_private *dev_priv,
57 		    const struct intel_bios_encoder_data *devdata);
58 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
59 void intel_ddi_enable_transcoder_func(struct intel_encoder *encoder,
60 				      const struct intel_crtc_state *crtc_state);
61 void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state);
62 void intel_ddi_enable_transcoder_clock(struct intel_encoder *encoder,
63 				       const struct intel_crtc_state *crtc_state);
64 void intel_ddi_disable_transcoder_clock(const  struct intel_crtc_state *crtc_state);
65 void intel_ddi_wait_for_fec_status(struct intel_encoder *encoder,
66 				   const struct intel_crtc_state *crtc_state,
67 				   bool enabled);
68 void intel_ddi_set_dp_msa(const struct intel_crtc_state *crtc_state,
69 			  const struct drm_connector_state *conn_state);
70 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
71 void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state,
72 				    bool state);
73 void intel_ddi_compute_min_voltage_level(struct intel_crtc_state *crtc_state);
74 int intel_ddi_toggle_hdcp_bits(struct intel_encoder *intel_encoder,
75 			       enum transcoder cpu_transcoder,
76 			       bool enable, u32 hdcp_mask);
77 void intel_ddi_sanitize_encoder_pll_mapping(struct intel_encoder *encoder);
78 int intel_ddi_level(struct intel_encoder *encoder,
79 		    const struct intel_crtc_state *crtc_state,
80 		    int lane);
81 void intel_ddi_update_active_dpll(struct intel_atomic_state *state,
82 				  struct intel_encoder *encoder,
83 				  struct intel_crtc *crtc);
84 
85 #endif /* __INTEL_DDI_H__ */
86