1 /* 2 * WPA Supplicant - background scan and roaming interface 3 * Copyright (c) 2009-2010, Jouni Malinen <j (at) 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 12 struct wpa_supplicant; 13 struct wpa_ssid; 14 15 struct 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 32 int bgscan_init(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, 33 const char *name); 34 void bgscan_deinit(struct wpa_supplicant *wpa_s); 35 int bgscan_notify_scan(struct wpa_supplicant *wpa_s, 36 struct wpa_scan_results *scan_res); 37 void bgscan_notify_beacon_loss(struct wpa_supplicant *wpa_s); 38 void 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 45 extern const struct bgscan_ops bgscan_simple_ops; 46 #endif /* CONFIG_BGSCAN_SIMPLE */ 47 #ifdef CONFIG_BGSCAN_LEARN 48 extern const struct bgscan_ops bgscan_learn_ops; 49 #endif /* CONFIG_BGSCAN_LEARN */ 50 51 #else /* CONFIG_BGSCAN */ 52 53 static inline int bgscan_init(struct wpa_supplicant *wpa_s, 54 struct wpa_ssid *ssid, const char name) 55 { 56 return 0; 57 } 58 59 static inline void bgscan_deinit(struct wpa_supplicant *wpa_s) 60 { 61 } 62 63 static inline int bgscan_notify_scan(struct wpa_supplicant *wpa_s, 64 struct wpa_scan_results *scan_res) 65 { 66 return 0; 67 } 68 69 static inline void bgscan_notify_beacon_loss(struct wpa_supplicant *wpa_s) 70 { 71 } 72 73 static 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
