1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2019 Intel Corporation
 4 */
 5
 6#ifndef __INTEL_DPIO_PHY_H__
 7#define __INTEL_DPIO_PHY_H__
 8
 9#include <linux/types.h>
10
11enum pipe;
12enum port;
13struct drm_i915_private;
14struct intel_crtc_state;
15struct intel_digital_port;
16struct intel_encoder;
17
18enum dpio_channel {
19	DPIO_CH0,
20	DPIO_CH1,
21};
22
23enum dpio_phy {
24	DPIO_PHY0,
25	DPIO_PHY1,
26	DPIO_PHY2,
27};
28
29void bxt_port_to_phy_channel(struct drm_i915_private *dev_priv, enum port port,
30			     enum dpio_phy *phy, enum dpio_channel *ch);
31void bxt_ddi_phy_set_signal_levels(struct intel_encoder *encoder,
32				   const struct intel_crtc_state *crtc_state);
33void bxt_ddi_phy_init(struct drm_i915_private *dev_priv, enum dpio_phy phy);
34void bxt_ddi_phy_uninit(struct drm_i915_private *dev_priv, enum dpio_phy phy);
35bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
36			    enum dpio_phy phy);
37bool bxt_ddi_phy_verify_state(struct drm_i915_private *dev_priv,
38			      enum dpio_phy phy);
39u8 bxt_ddi_phy_calc_lane_lat_optim_mask(u8 lane_count);
40void bxt_ddi_phy_set_lane_optim_mask(struct intel_encoder *encoder,
41				     u8 lane_lat_optim_mask);
42u8 bxt_ddi_phy_get_lane_lat_optim_mask(struct intel_encoder *encoder);
43
44enum dpio_channel vlv_dig_port_to_channel(struct intel_digital_port *dig_port);
45enum dpio_phy vlv_dig_port_to_phy(struct intel_digital_port *dig_port);
46enum dpio_channel vlv_pipe_to_channel(enum pipe pipe);
47
48void chv_set_phy_signal_level(struct intel_encoder *encoder,
49			      const struct intel_crtc_state *crtc_state,
50			      u32 deemph_reg_value, u32 margin_reg_value,
51			      bool uniq_trans_scale);
52void chv_data_lane_soft_reset(struct intel_encoder *encoder,
53			      const struct intel_crtc_state *crtc_state,
54			      bool reset);
55void chv_phy_pre_pll_enable(struct intel_encoder *encoder,
56			    const struct intel_crtc_state *crtc_state);
57void chv_phy_pre_encoder_enable(struct intel_encoder *encoder,
58				const struct intel_crtc_state *crtc_state);
59void chv_phy_release_cl2_override(struct intel_encoder *encoder);
60void chv_phy_post_pll_disable(struct intel_encoder *encoder,
61			      const struct intel_crtc_state *old_crtc_state);
62
63void vlv_set_phy_signal_level(struct intel_encoder *encoder,
64			      const struct intel_crtc_state *crtc_state,
65			      u32 demph_reg_value, u32 preemph_reg_value,
66			      u32 uniqtranscale_reg_value, u32 tx3_demph);
67void vlv_phy_pre_pll_enable(struct intel_encoder *encoder,
68			    const struct intel_crtc_state *crtc_state);
69void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder,
70				const struct intel_crtc_state *crtc_state);
71void vlv_phy_reset_lanes(struct intel_encoder *encoder,
72			 const struct intel_crtc_state *old_crtc_state);
73
74#endif /* __INTEL_DPIO_PHY_H__ */