Commit a0036b88 authored Mar 09, 2016 by rongbo.x.chi Committed by Andre Eisenbach Jul 07, 2017

Deal with unknown signal strength level comes from Telephony

According to TS27.007 8.5, GSM level 99 represents
not known or not detectable. Bluetooth doesn't take it into
consideration, so HF unit cannot display correct signal level.

Add judgement for this special case so that HF unit can match
with status bar of phone.

Bug: 28992746

Change-Id: I951c808472dff11af5584ac66c06386d8c601bbb

parent 86321a4d

android/app/src/com/android/bluetooth/hfp/HeadsetPhoneState.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -290,7 +290,8 @@ class HeadsetPhoneState {
		*/
		private int gsmAsuToSignal(SignalStrength signalStrength) {
		int asu = signalStrength.getGsmSignalStrength();
		if (asu >= 16) return 5;
		if (asu == 99) return 0;
		else if (asu >= 16) return 5;
		else if (asu >= 8) return 4;
		else if (asu >= 4) return 3;
		else if (asu >= 2) return 2;