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c3f398b1 AE |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | ||
3 | /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. | |
4 | * Copyright (C) 2019-2020 Linaro Ltd. | |
5 | */ | |
6 | #ifndef _IPA_GSI_TRANS_H_ | |
7 | #define _IPA_GSI_TRANS_H_ | |
8 | ||
9 | #include <linux/types.h> | |
10 | ||
3c90e95b | 11 | struct gsi; |
c3f398b1 | 12 | struct gsi_trans; |
3c90e95b | 13 | struct ipa_gsi_endpoint_data; |
c3f398b1 AE |
14 | |
15 | /** | |
16 | * ipa_gsi_trans_complete() - GSI transaction completion callback | |
17 | * @trans: Transaction that has completed | |
18 | * | |
19 | * This called from the GSI layer to notify the IPA layer that a | |
20 | * transaction has completed. | |
21 | */ | |
22 | void ipa_gsi_trans_complete(struct gsi_trans *trans); | |
23 | ||
24 | /** | |
25 | * ipa_gsi_trans_release() - GSI transaction release callback | |
26 | * @trans: Transaction whose resources should be freed | |
27 | * | |
28 | * This called from the GSI layer to notify the IPA layer that a | |
29 | * transaction is about to be freed, so any resources associated | |
30 | * with it should be released. | |
31 | */ | |
32 | void ipa_gsi_trans_release(struct gsi_trans *trans); | |
33 | ||
34 | /** | |
35 | * ipa_gsi_channel_tx_queued() - GSI queued to hardware notification | |
36 | * @gsi: GSI pointer | |
37 | * @channel_id: Channel number | |
38 | * @count: Number of transactions queued | |
39 | * @byte_count: Number of bytes to transfer represented by transactions | |
40 | * | |
41 | * This called from the GSI layer to notify the IPA layer that some | |
42 | * number of transactions have been queued to hardware for execution. | |
43 | */ | |
44 | void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count, | |
45 | u32 byte_count); | |
e3eea08e | 46 | |
c3f398b1 | 47 | /** |
e3eea08e | 48 | * ipa_gsi_channel_tx_completed() - GSI transaction completion callback |
c3f398b1 AE |
49 | * @gsi: GSI pointer |
50 | * @channel_id: Channel number | |
51 | * @count: Number of transactions completed since last report | |
52 | * @byte_count: Number of bytes transferred represented by transactions | |
53 | * | |
54 | * This called from the GSI layer to notify the IPA layer that the hardware | |
55 | * has reported the completion of some number of transactions. | |
56 | */ | |
57 | void ipa_gsi_channel_tx_completed(struct gsi *gsi, u32 channel_id, u32 count, | |
58 | u32 byte_count); | |
59 | ||
e3eea08e AE |
60 | /* ipa_gsi_endpoint_data_empty() - Empty endpoint config data test |
61 | * @data: endpoint configuration data | |
62 | * | |
63 | * Determines whether an endpoint configuration data entry is empty, | |
64 | * meaning it contains no valid configuration information and should | |
65 | * be ignored. | |
66 | * | |
67 | * Return: true if empty; false otherwise | |
68 | */ | |
c3f398b1 AE |
69 | bool ipa_gsi_endpoint_data_empty(const struct ipa_gsi_endpoint_data *data); |
70 | ||
71 | #endif /* _IPA_GSI_TRANS_H_ */ |