42 lines
1.7 KiB
C
42 lines
1.7 KiB
C
/*
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* Copyright 2022 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#ifndef __DC_LINK_DP_IRQ_HANDLER_H__
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#define __DC_LINK_DP_IRQ_HANDLER_H__
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#include "link.h"
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bool dp_parse_link_loss_status(
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struct dc_link *link,
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union hpd_irq_data *hpd_irq_dpcd_data);
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bool dp_should_allow_hpd_rx_irq(const struct dc_link *link);
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void dp_handle_link_loss(struct dc_link *link);
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enum dc_status dp_read_hpd_rx_irq_data(
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struct dc_link *link,
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union hpd_irq_data *irq_data);
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bool dp_handle_hpd_rx_irq(struct dc_link *link,
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union hpd_irq_data *out_hpd_irq_dpcd_data, bool *out_link_loss,
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bool defer_handling, bool *has_left_work);
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#endif /* __DC_LINK_DP_IRQ_HANDLER_H__ */
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