1 /* SPDX-License-Identifier: MIT */
3 * Copyright 2021 Advanced Micro Devices, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
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9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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27 #ifndef __DC_LINK_DPIA_H__
28 #define __DC_LINK_DPIA_H__
32 /* Read tunneling device capability from DPCD and update link capability
35 enum dc_status dpcd_get_tunneling_device_data(struct dc_link *link);
37 /* Query hot plug status of USB4 DP tunnel.
38 * Returns true if HPD high.
40 bool dpia_query_hpd_status(struct dc_link *link);
41 #endif /* __DC_LINK_DPIA_H__ */