1 /*
2 * Copyright (c) 2011, 2017-2021 The Linux Foundation. All rights reserved.
3 *
4 *
5 * Permission to use, copy, modify, and/or distribute this software for
6 * any purpose with or without fee is hereby granted, provided that the
7 * above copyright notice and this permission notice appear in all
8 * copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 #ifndef _OS_IF_SPECTRAL_NETLINK_H
21 #define _OS_IF_SPECTRAL_NETLINK_H
22
23 #include <net/netlink.h>
24 #include <wlan_objmgr_pdev_obj.h>
25 #include <linux/version.h>
26 #include <linux/module.h>
27 #include <linux/kernel.h>
28 #include <wlan_spectral_public_structs.h>
29
30 /* NETLINK related declarations */
31 #if (KERNEL_VERSION(2, 6, 31) > LINUX_VERSION_CODE)
32 void os_if_spectral_nl_data_ready(struct sock *sk, int len);
33 #else
34 void os_if_spectral_nl_data_ready(struct sk_buff *skb);
35 #endif /* VERSION CHECK */
36
37 #ifndef SPECTRAL_NETLINK
38 #define SPECTRAL_NETLINK (NETLINK_GENERIC + 1)
39 #endif
40
41 /* Init's network namespace */
42 extern struct net init_net;
43
44 /**
45 * os_if_spectral_netlink_init() - Initialize Spectral Netlink data structures
46 * and register the NL handlers with Spectral target_if
47 * @pdev: Pointer to pdev
48 *
49 * Preparing socket buffer and sending Netlink messages to application layer are
50 * defined in os_if layer, they need to be registered with Spectral target_if
51 *
52 * Return: None
53 */
54 #ifdef WLAN_CONV_SPECTRAL_ENABLE
55 void os_if_spectral_netlink_init(struct wlan_objmgr_pdev *pdev);
56 /**
57 * os_if_spectral_prep_skb() - Prepare socket buffer
58 * @pdev : Pointer to pdev
59 * @smsg_type: Spectral scan message type
60 * @buf_type: Spectral report buffer type
61 *
62 * Prepare socket buffer to send the data to application layer
63 *
64 * Return: NLMSG_DATA of the created skb or NULL if no memory
65 */
66 void *os_if_spectral_prep_skb(struct wlan_objmgr_pdev *pdev,
67 enum spectral_msg_type smsg_type,
68 enum spectral_msg_buf_type buf_type);
69
70 /**
71 * os_if_spectral_netlink_deinit() - De-initialize Spectral Netlink data
72 * structures and de-register the NL handlers from Spectral target_if
73 * @pdev: Pointer to pdev
74 *
75 * Return: None
76 */
77 void os_if_spectral_netlink_deinit(struct wlan_objmgr_pdev *pdev);
78 #else
79
os_if_spectral_netlink_init(struct wlan_objmgr_pdev * pdev)80 static inline void os_if_spectral_netlink_init(struct wlan_objmgr_pdev *pdev)
81 {
82 }
83
os_if_spectral_netlink_deinit(struct wlan_objmgr_pdev * pdev)84 static inline void os_if_spectral_netlink_deinit(struct wlan_objmgr_pdev *pdev)
85 {
86 }
87
88 #endif
89 #endif /* _OS_IF_SPECTRAL_NETLINK_H */
90