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