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 | |
11 | struct gsi; |
12 | struct gsi_trans; |
13 | struct ipa_gsi_endpoint_data; |
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); |
46 | |
47 | /** |
48 | * ipa_gsi_channel_tx_completed() - GSI transaction completion callback |
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 | |
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 | */ |
69 | bool ipa_gsi_endpoint_data_empty(const struct ipa_gsi_endpoint_data *data); |
70 | |
71 | #endif /* _IPA_GSI_TRANS_H_ */ |
72 | |