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Commit ea933cb3 authored by Irfan Sheriff's avatar Irfan Sheriff
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Change RSSI notification levels to 5 in framework 

At some point the system UI switched to using 5 rssi levels
while the framework only broadcasts a change for 4 levels.

Hence RSSI change can be slow to be displayed on the UI, fix this

Bug: 5732700
Change-Id: I21700f96ba7a8dd678fb2ccfff8ef59f9b696666
parent 55abad39

wifi/java/android/net/wifi/WifiManager.java

+7 −0
Original line number Diff line number Diff line
@@ -412,6 +412,13 @@ public class WifiManager { 
    /** Anything better than or equal to this will show the max bars. */

    private static final int MAX_RSSI = -55;



    /**

     * Number of RSSI levels used in the framework to initiate

     * {@link #RSSI_CHANGED_ACTION} broadcast

     * @hide

     */

    public static final int RSSI_LEVELS = 5;



    /**

     * Auto settings in the driver. The driver could choose to operate on both

     * 2.4 GHz and 5 GHz or make a dynamic decision on selecting the band.

wifi/java/android/net/wifi/WifiStateMachine.java

+2 −5
Original line number Diff line number Diff line
@@ -1423,14 +1423,11 @@ public class WifiStateMachine extends StateMachine { 
             * be displayed in the status bar, and only send the

             * broadcast if that much more coarse-grained number

             * changes. This cuts down greatly on the number of

             * broadcasts, at the cost of not mWifiInforming others

             * broadcasts, at the cost of not informing others

             * interested in RSSI of all the changes in signal

             * level.

             */

            // TODO: The second arg to the call below needs to be a symbol somewhere, but

            // it's actually the size of an array of icons that's private

            // to StatusBar Policy.

            int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, 4);

            int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS);

            if (newSignalLevel != mLastSignalLevel) {

                sendRssiChangeBroadcast(newRssi);

            }