| /* 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_ */ |