bgscan-simple: Poll for signal in init

It is not guaranteed that we will get a CQM signal shortly after setting
up monitoring. In order to establish the correct initial background
scanning rate, poll directly for the signal strength.

Signed-off-by: Paul Stewart

diff --git a/wpa_supplicant/bgscan_simple.c b/wpa_supplicant/bgscan_simple.c
index 409d9ce..e2692c4 100644 (file)
--- a/wpa_supplicant/bgscan_simple.c
+++ b/wpa_supplicant/bgscan_simple.c
@@ -122,6 +122,15 @@ static void * bgscan_simple_init(struct wpa_supplicant *wpa_s,
        }
 
        data->scan_interval = data->short_interval;
+       if (data->signal_threshold) {
+               /* Poll for signal info to set initial scan interval */
+               struct wpa_signal_info siginfo;
+               if (wpa_drv_signal_poll(wpa_s, &siginfo) == 0 &&
+                   siginfo.current_signal >= data->signal_threshold)
+                       data->scan_interval = data->long_interval;
+       }
+       wpa_printf(MSG_DEBUG, "bgscan simple: Init scan interval: %d",
+                  data->scan_interval);
        eloop_register_timeout(data->scan_interval, 0, bgscan_simple_timeout,
                               data, NULL);