contrib/wpa_supplicant/wpa_supplicant/bgscan.h

   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
  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 */