1/*
2 * Copyright 2022 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#ifndef __DC_LINK_DP_IRQ_HANDLER_H__
27#define __DC_LINK_DP_IRQ_HANDLER_H__
28
29#include "link.h"
30bool dp_parse_link_loss_status(
31	struct dc_link *link,
32	union hpd_irq_data *hpd_irq_dpcd_data);
33bool dp_should_allow_hpd_rx_irq(const struct dc_link *link);
34void dp_handle_link_loss(struct dc_link *link);
35enum dc_status dp_read_hpd_rx_irq_data(
36	struct dc_link *link,
37	union hpd_irq_data *irq_data);
38bool dp_handle_hpd_rx_irq(struct dc_link *link,
39		union hpd_irq_data *out_hpd_irq_dpcd_data, bool *out_link_loss,
40		bool defer_handling, bool *has_left_work);
41#endif /* __DC_LINK_DP_IRQ_HANDLER_H__ */
42