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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef __INTEL_DP_TUNNEL_H__
#define __INTEL_DP_TUNNEL_H__
#include <linux/errno.h>
#include <linux/types.h>
struct drm_i915_private;
struct drm_connector_state;
struct drm_modeset_acquire_ctx;
struct intel_atomic_state;
struct intel_connector;
struct intel_crtc;
struct intel_crtc_state;
struct intel_dp;
struct intel_encoder;
struct intel_link_bw_limits;
#if defined(CONFIG_DRM_I915_DP_TUNNEL) && defined(I915)
int intel_dp_tunnel_detect(struct intel_dp *intel_dp, struct drm_modeset_acquire_ctx *ctx);
void intel_dp_tunnel_disconnect(struct intel_dp *intel_dp);
void intel_dp_tunnel_destroy(struct intel_dp *intel_dp);
void intel_dp_tunnel_resume(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
bool dpcd_updated);
void intel_dp_tunnel_suspend(struct intel_dp *intel_dp);
bool intel_dp_tunnel_bw_alloc_is_enabled(struct intel_dp *intel_dp);
void
intel_dp_tunnel_atomic_cleanup_inherited_state(struct intel_atomic_state *state);
int intel_dp_tunnel_atomic_compute_stream_bw(struct intel_atomic_state *state,
struct intel_dp *intel_dp,
const struct intel_connector *connector,
struct intel_crtc_state *crtc_state);
void intel_dp_tunnel_atomic_clear_stream_bw(struct intel_atomic_state *state,
struct intel_crtc_state *crtc_state);
int intel_dp_tunnel_atomic_add_state_for_crtc(struct intel_atomic_state *state,
struct intel_crtc *crtc);
int intel_dp_tunnel_atomic_check_link(struct intel_atomic_state *state,
struct intel_link_bw_limits *limits);
int intel_dp_tunnel_atomic_check_state(struct intel_atomic_state *state,
struct intel_dp *intel_dp,
struct intel_connector *connector);
void intel_dp_tunnel_atomic_alloc_bw(struct intel_atomic_state *state);
int intel_dp_tunnel_mgr_init(struct drm_i915_private *i915);
void intel_dp_tunnel_mgr_cleanup(struct drm_i915_private *i915);
#else
static inline int
intel_dp_tunnel_detect(struct intel_dp *intel_dp, struct drm_modeset_acquire_ctx *ctx)
{
return -EOPNOTSUPP;
}
static inline void intel_dp_tunnel_disconnect(struct intel_dp *intel_dp) {}
static inline void intel_dp_tunnel_destroy(struct intel_dp *intel_dp) {}
static inline void intel_dp_tunnel_resume(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
bool dpcd_updated) {}
static inline void intel_dp_tunnel_suspend(struct intel_dp *intel_dp) {}
static inline bool intel_dp_tunnel_bw_alloc_is_enabled(struct intel_dp *intel_dp)
{
return false;
}
static inline void
intel_dp_tunnel_atomic_cleanup_inherited_state(struct intel_atomic_state *state) {}
static inline int
intel_dp_tunnel_atomic_compute_stream_bw(struct intel_atomic_state *state,
struct intel_dp *intel_dp,
const struct intel_connector *connector,
struct intel_crtc_state *crtc_state)
{
return 0;
}
static inline void
intel_dp_tunnel_atomic_clear_stream_bw(struct intel_atomic_state *state,
struct intel_crtc_state *crtc_state) {}
static inline int
intel_dp_tunnel_atomic_add_state_for_crtc(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
return 0;
}
static inline int
intel_dp_tunnel_atomic_check_link(struct intel_atomic_state *state,
struct intel_link_bw_limits *limits)
{
return 0;
}
static inline int
intel_dp_tunnel_atomic_check_state(struct intel_atomic_state *state,
struct intel_dp *intel_dp,
struct intel_connector *connector)
{
return 0;
}
static inline int
intel_dp_tunnel_atomic_alloc_bw(struct intel_atomic_state *state)
{
return 0;
}
static inline int
intel_dp_tunnel_mgr_init(struct drm_i915_private *i915)
{
return 0;
}
static inline void intel_dp_tunnel_mgr_cleanup(struct drm_i915_private *i915) {}
#endif /* CONFIG_DRM_I915_DP_TUNNEL */
#endif /* __INTEL_DP_TUNNEL_H__ */
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