There is no need to report very small RSSI changes.
---
android/bluetooth.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/android/bluetooth.c b/android/bluetooth.c
index b105ac8..b95023c 100644
--- a/android/bluetooth.c
+++ b/android/bluetooth.c
@@ -1045,6 +1045,19 @@ static uint8_t bdaddr_type2android(uint8_t type)
return HAL_TYPE_LE;
}
+static bool rssi_threashold(int old, int new)
+{
+ int delta;
+
+ if (old > new)
+ delta = old - new;
+ else
+ delta = new - old;
+
+ /* only 8 dBm or more */
+ return delta >= 8;
+}
+
static void update_found_device(const bdaddr_t *bdaddr, uint8_t bdaddr_type,
int8_t rssi, bool confirm,
const uint8_t *data, uint8_t data_len)
@@ -1113,7 +1126,7 @@ static void update_found_device(const bdaddr_t *bdaddr, uint8_t bdaddr_type,
(*num_prop)++;
}
- if (rssi) {
+ if (rssi && rssi_threashold(dev->rssi, rssi)) {
dev->rssi = rssi;
size += fill_hal_prop(buf + size, HAL_PROP_DEVICE_RSSI,
--
1.8.5.3
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