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" |
30 | bool dp_parse_link_loss_status( |
31 | struct dc_link *link, |
32 | union hpd_irq_data *hpd_irq_dpcd_data); |
33 | bool dp_should_allow_hpd_rx_irq(const struct dc_link *link); |
34 | void dp_handle_link_loss(struct dc_link *link); |
35 | enum dc_status dp_read_hpd_rx_irq_data( |
36 | struct dc_link *link, |
37 | union hpd_irq_data *irq_data); |
38 | bool 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 | |