wl1271: add get_survey callback in order to get channel noise
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_rx.c b/drivers/net/wireless/wl12xx/wl1271_rx.c
index e98f22b..019aa79 100644
--- a/drivers/net/wireless/wl12xx/wl1271_rx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_rx.c
@@ -55,6 +55,13 @@
status->signal = desc->rssi;
+ /*
+ * FIXME: In wl1251, the SNR should be divided by two. In wl1271 we
+ * need to divide by two for now, but TI has been discussing about
+ * changing it. This needs to be rechecked.
+ */
+ wl->noise = desc->rssi - (desc->snr >> 1);
+
status->freq = ieee80211_channel_to_frequency(desc->channel);
if (desc->flags & WL1271_RX_DESC_ENCRYPT_MASK) {