1 /*
2  * Copyright (c) 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_dcm.h
19  *
20  * implementation for creating sysfs file dcm
21  */
22 
23 #ifndef _WLAN_HDD_SYSFS_DCM_H
24 #define _WLAN_HDD_SYSFS_DCM_H
25 
26 #if defined(WLAN_SYSFS) && defined(WLAN_SYSFS_DCM)
27 /**
28  * hdd_sysfs_dcm_create() - API to create dcm
29  * @adapter: pointer to adapter
30  *
31  * this file is created per adapter.
32  * file path: /sys/class/net/wlanxx/dcm
33  * where wlanxx is adapter name
34  *
35  * usage:
36  *      echo [0/1] > dcm
37  *      cat dcm
38  *
39  * Return: 0 on success and errno on failure
40  */
41 int hdd_sysfs_dcm_create(struct hdd_adapter *adapter);
42 
43 /**
44  * hdd_sysfs_dcm_destroy() -
45  *   API to destroy dcm
46  * @adapter: pointer to adapter
47  *
48  * Return: none
49  */
50 void hdd_sysfs_dcm_destroy(struct hdd_adapter *adapter);
51 #else
52 static inline int
hdd_sysfs_dcm_create(struct hdd_adapter * adapter)53 hdd_sysfs_dcm_create(struct hdd_adapter *adapter)
54 {
55 	return 0;
56 }
57 
58 static inline void
hdd_sysfs_dcm_destroy(struct hdd_adapter * adapter)59 hdd_sysfs_dcm_destroy(struct hdd_adapter *adapter)
60 {
61 }
62 #endif
63 #endif /* #ifndef _WLAN_HDD_SYSFS_DCM_H */
64