72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
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* Copyright (C) 2019-2020 Linaro Ltd.
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*/
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#ifndef _IPA_GSI_TRANS_H_
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#define _IPA_GSI_TRANS_H_
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#include <linux/types.h>
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struct gsi;
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struct gsi_trans;
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struct ipa_gsi_endpoint_data;
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/**
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* ipa_gsi_trans_complete() - GSI transaction completion callback
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* @trans: Transaction that has completed
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*
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* This called from the GSI layer to notify the IPA layer that a
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* transaction has completed.
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*/
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void ipa_gsi_trans_complete(struct gsi_trans *trans);
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/**
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* ipa_gsi_trans_release() - GSI transaction release callback
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* @trans: Transaction whose resources should be freed
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*
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* This called from the GSI layer to notify the IPA layer that a
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* transaction is about to be freed, so any resources associated
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* with it should be released.
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*/
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void ipa_gsi_trans_release(struct gsi_trans *trans);
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/**
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* ipa_gsi_channel_tx_queued() - GSI queued to hardware notification
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* @gsi: GSI pointer
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* @channel_id: Channel number
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* @count: Number of transactions queued
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* @byte_count: Number of bytes to transfer represented by transactions
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*
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* This called from the GSI layer to notify the IPA layer that some
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* number of transactions have been queued to hardware for execution.
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*/
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void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count,
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u32 byte_count);
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/**
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* ipa_gsi_channel_tx_completed() - GSI transaction completion callback
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* @gsi: GSI pointer
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* @channel_id: Channel number
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* @count: Number of transactions completed since last report
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* @byte_count: Number of bytes transferred represented by transactions
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*
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* This called from the GSI layer to notify the IPA layer that the hardware
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* has reported the completion of some number of transactions.
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*/
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void ipa_gsi_channel_tx_completed(struct gsi *gsi, u32 channel_id, u32 count,
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u32 byte_count);
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/* ipa_gsi_endpoint_data_empty() - Empty endpoint config data test
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* @data: endpoint configuration data
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*
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* Determines whether an endpoint configuration data entry is empty,
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* meaning it contains no valid configuration information and should
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* be ignored.
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*
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* Return: true if empty; false otherwise
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*/
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bool ipa_gsi_endpoint_data_empty(const struct ipa_gsi_endpoint_data *data);
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#endif /* _IPA_GSI_TRANS_H_ */
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