wifi: Disable RSSI polling when the screen is off. (f32be166) · Commits · e / os / android_frameworks_base

services/java/com/android/server/WifiService.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -192,6 +192,7 @@ public class WifiService extends IWifiManager.Stub {
		WifiService(Context context, WifiStateTracker tracker) {
		mContext = context;
		mWifiStateTracker = tracker;
		mWifiStateTracker.enableRssiPolling(true);
		mBatteryStats = BatteryStatsService.getService();

		/*
		@@ -1560,9 +1561,11 @@ public class WifiService extends IWifiManager.Stub {
		mAlarmManager.cancel(mIdleIntent);
		mDeviceIdle = false;
		mScreenOff = false;
		mWifiStateTracker.enableRssiPolling(true);
		} else if (action.equals(Intent.ACTION_SCREEN_OFF)) {
		Log.d(TAG, "ACTION_SCREEN_OFF");
		mScreenOff = true;
		mWifiStateTracker.enableRssiPolling(false);
		/*
		* Set a timer to put Wi-Fi to sleep, but only if the screen is off
		* AND the "stay on while plugged in" setting doesn't match the

wifi/java/android/net/wifi/WifiStateTracker.java

+16 −6

Original line number	Diff line number	Diff line
		@@ -239,6 +239,7 @@ public class WifiStateTracker extends NetworkStateTracker {

		private boolean mIsScanModeActive;
		private boolean mIsScanModeSetDueToAHiddenNetwork;
		private boolean mEnableRssiPolling;

		// Wi-Fi run states:
		private static final int RUN_STATE_STARTING = 1;
		@@ -338,6 +339,7 @@ public class WifiStateTracker extends NetworkStateTracker {
		private void setSupplicantState(SupplicantState state) {
		mWifiInfo.setSupplicantState(state);
		updateNetworkInfo();
		checkPollTimer();
		}

		public SupplicantState getSupplicantState() {
		@@ -352,6 +354,7 @@ public class WifiStateTracker extends NetworkStateTracker {
		private void setSupplicantState(String stateName) {
		mWifiInfo.setSupplicantState(stateName);
		updateNetworkInfo();
		checkPollTimer();
		}

		/**
		@@ -540,8 +543,10 @@ public class WifiStateTracker extends NetworkStateTracker {
		* Set the interval timer for polling connection information
		* that is not delivered asynchronously.
		*/
		private synchronized void setPollTimer () {
		if (!hasMessages(EVENT_POLL_INTERVAL)) {
		private synchronized void checkPollTimer() {
		if (mEnableRssiPolling &&
		mWifiInfo.getSupplicantState() == SupplicantState.COMPLETED &&
		!hasMessages(EVENT_POLL_INTERVAL)) {
		sendEmptyMessageDelayed(EVENT_POLL_INTERVAL, POLL_STATUS_INTERVAL_MSECS);
		}
		}
		@@ -637,6 +642,13 @@ public class WifiStateTracker extends NetworkStateTracker {
		setBluetoothScanMode(isBluetoothPlaying);
		}

		public void enableRssiPolling(boolean enable) {
		if (mEnableRssiPolling != enable) {
		mEnableRssiPolling = enable;
		checkPollTimer();
		}
		}

		@Override
		public void releaseWakeLock() {
		if (mReleaseWakeLockCallback != null) {
		@@ -1022,9 +1034,7 @@ public class WifiStateTracker extends NetworkStateTracker {
		case EVENT_POLL_INTERVAL:
		if (mWifiInfo.getSupplicantState() != SupplicantState.UNINITIALIZED) {
		requestPolledInfo(mWifiInfo);
		if (mWifiInfo.getSupplicantState() == SupplicantState.COMPLETED) {
		setPollTimer();
		}
		checkPollTimer();
		}
		break;

		@@ -1163,7 +1173,7 @@ public class WifiStateTracker extends NetworkStateTracker {
		}

		private void configureInterface() {
		setPollTimer();
		checkPollTimer();
		mLastSignalLevel = -1;
		if (!mUseStaticIp) {
		if (!mHaveIpAddress && !mObtainingIpAddress) {