1/*
2 * WPA Supplicant - background scan and roaming interface
3 * Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9#ifndef BGSCAN_H
10#define BGSCAN_H
11
12struct wpa_supplicant;
13struct wpa_ssid;
14
15struct bgscan_ops {
16	const char *name;
17
18	void * (*init)(struct wpa_supplicant *wpa_s, const char *params,
19		       const struct wpa_ssid *ssid);
20	void (*deinit)(void *priv);
21
22	int (*notify_scan)(void *priv, struct wpa_scan_results *scan_res);
23	void (*notify_beacon_loss)(void *priv);
24	void (*notify_signal_change)(void *priv, int above,
25				     int current_signal,
26				     int current_noise,
27				     int current_txrate);
28};
29
30#ifdef CONFIG_BGSCAN
31
32int bgscan_init(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
33		const char *name);
34void bgscan_deinit(struct wpa_supplicant *wpa_s);
35int bgscan_notify_scan(struct wpa_supplicant *wpa_s,
36		       struct wpa_scan_results *scan_res);
37void bgscan_notify_beacon_loss(struct wpa_supplicant *wpa_s);
38void bgscan_notify_signal_change(struct wpa_supplicant *wpa_s, int above,
39				 int current_signal, int current_noise,
40				 int current_txrate);
41
42/* Available bgscan modules */
43
44#ifdef CONFIG_BGSCAN_SIMPLE
45extern const struct bgscan_ops bgscan_simple_ops;
46#endif /* CONFIG_BGSCAN_SIMPLE */
47#ifdef CONFIG_BGSCAN_LEARN
48extern const struct bgscan_ops bgscan_learn_ops;
49#endif /* CONFIG_BGSCAN_LEARN */
50
51#else /* CONFIG_BGSCAN */
52
53static inline int bgscan_init(struct wpa_supplicant *wpa_s,
54			      struct wpa_ssid *ssid, const char name)
55{
56	return 0;
57}
58
59static inline void bgscan_deinit(struct wpa_supplicant *wpa_s)
60{
61}
62
63static inline int bgscan_notify_scan(struct wpa_supplicant *wpa_s,
64				     struct wpa_scan_results *scan_res)
65{
66	return 0;
67}
68
69static inline void bgscan_notify_beacon_loss(struct wpa_supplicant *wpa_s)
70{
71}
72
73static inline void bgscan_notify_signal_change(struct wpa_supplicant *wpa_s,
74					       int above, int current_signal,
75					       int current_noise,
76					       int current_txrate)
77{
78}
79
80#endif /* CONFIG_BGSCAN */
81
82#endif /* BGSCAN_H */
83