1 /*
2  * Copyright (c) 2011-2020, The Linux Foundation. All rights reserved.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 /**
18  * DOC: wlan_hdd_sysfs_stats.h
19  *
20  * Implementation for creating sysfs files:
21  *
22  * stats
23  * dump_stats
24  * clear_stats
25  */
26 
27 #ifndef _WLAN_HDD_SYSFS_STATS_H
28 #define _WLAN_HDD_SYSFS_STATS_H
29 
30 #if defined(WLAN_SYSFS) && defined(WLAN_SYSFS_STATS)
31 /**
32  * hdd_sysfs_stats_create() - API to create stats files
33  * @adapter: pointer to adapter
34  *
35  * these files are created per adapter.
36  * file path:
37  *   /sys/class/net/wlanxx/dump_stats
38  *   /sys/class/net/wlanxx/clear_stats
39  *   /sys/class/net/wlanxx/stats
40  * where wlanxx is adapter name
41  *
42  * usage:
43  *      echo [stats_id] > dump_stats
44  *      cat dump_stats
45  *      echo [stats_id] > clear_stats
46  *      cat /sys/class/net/wlanxx/stats
47  *
48  * Return: 0 on success and errno on failure
49  */
50 int hdd_sysfs_stats_create(struct hdd_adapter *adapter);
51 
52 /**
53  * hdd_sysfs_stats_destroy() -
54  *   API to destroy stats
55  * @adapter: pointer to adapter
56  *
57  * Return: none
58  */
59 void hdd_sysfs_stats_destroy(struct hdd_adapter *adapter);
60 #else
61 static inline int
hdd_sysfs_stats_create(struct hdd_adapter * adapter)62 hdd_sysfs_stats_create(struct hdd_adapter *adapter)
63 {
64 	return 0;
65 }
66 
67 static inline void
hdd_sysfs_stats_destroy(struct hdd_adapter * adapter)68 hdd_sysfs_stats_destroy(struct hdd_adapter *adapter)
69 {
70 }
71 #endif
72 #endif /* #ifndef _WLAN_HDD_SYSFS_STATS_H */
73