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 dpio_channel;
12enum dpio_phy;
13enum port;
14struct drm_i915_private;
15struct intel_crtc_state;
16struct intel_encoder;
17
18void bxt_port_to_phy_channel(struct drm_i915_private *dev_priv, enum port port,
19			     enum dpio_phy *phy, enum dpio_channel *ch);
20void bxt_ddi_phy_set_signal_level(struct drm_i915_private *dev_priv,
21				  enum port port, u32 margin, u32 scale,
22				  u32 enable, u32 deemphasis);
23void bxt_ddi_phy_init(struct drm_i915_private *dev_priv, enum dpio_phy phy);
24void bxt_ddi_phy_uninit(struct drm_i915_private *dev_priv, enum dpio_phy phy);
25bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
26			    enum dpio_phy phy);
27bool bxt_ddi_phy_verify_state(struct drm_i915_private *dev_priv,
28			      enum dpio_phy phy);
29u8 bxt_ddi_phy_calc_lane_lat_optim_mask(u8 lane_count);
30void bxt_ddi_phy_set_lane_optim_mask(struct intel_encoder *encoder,
31				     u8 lane_lat_optim_mask);
32u8 bxt_ddi_phy_get_lane_lat_optim_mask(struct intel_encoder *encoder);
33
34void chv_set_phy_signal_level(struct intel_encoder *encoder,
35			      u32 deemph_reg_value, u32 margin_reg_value,
36			      bool uniq_trans_scale);
37void chv_data_lane_soft_reset(struct intel_encoder *encoder,
38			      const struct intel_crtc_state *crtc_state,
39			      bool reset);
40void chv_phy_pre_pll_enable(struct intel_encoder *encoder,
41			    const struct intel_crtc_state *crtc_state);
42void chv_phy_pre_encoder_enable(struct intel_encoder *encoder,
43				const struct intel_crtc_state *crtc_state);
44void chv_phy_release_cl2_override(struct intel_encoder *encoder);
45void chv_phy_post_pll_disable(struct intel_encoder *encoder,
46			      const struct intel_crtc_state *old_crtc_state);
47
48void vlv_set_phy_signal_level(struct intel_encoder *encoder,
49			      u32 demph_reg_value, u32 preemph_reg_value,
50			      u32 uniqtranscale_reg_value, u32 tx3_demph);
51void vlv_phy_pre_pll_enable(struct intel_encoder *encoder,
52			    const struct intel_crtc_state *crtc_state);
53void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder,
54				const struct intel_crtc_state *crtc_state);
55void vlv_phy_reset_lanes(struct intel_encoder *encoder,
56			 const struct intel_crtc_state *old_crtc_state);
57
58#endif /* __INTEL_DPIO_PHY_H__ */