add frequency band control API (36f7413d) · Commits · e / os / android_frameworks_base

core/java/android/provider/Settings.java

+11 −0

Original line number	Diff line number	Diff line
		@@ -34,6 +34,7 @@ import android.content.res.Resources;
		import android.database.Cursor;
		import android.database.SQLException;
		import android.net.Uri;
		import android.net.wifi.WifiManager;
		import android.os.BatteryManager;
		import android.os.Bundle;
		import android.os.RemoteException;
		@@ -2834,6 +2835,16 @@ public final class Settings {
		*/
		public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";

		/**
		* The operational wifi frequency band
		* Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
		* {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
		* {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
		*
		* @hide
		*/
		public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";

		/**
		* Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
		* data connectivity to be established after a disconnect from Wi-Fi.

core/res/res/values/config.xml

+2 −0

Original line number	Diff line number	Diff line
		@@ -162,6 +162,8 @@
		note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN" -->
		<string translatable="false" name="config_tether_apndata"></string>

		<!-- Boolean indicating whether the wifi chipset has dual frequency band support -->
		<bool translatable="false" name="config_wifi_dual_band_support">false</bool>

		<!-- Flag indicating whether the keyguard should be bypassed when
		the slider is open. This can be set or unset depending how easily

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

+32 −0

Original line number	Diff line number	Diff line
		@@ -732,6 +732,38 @@ public class WifiService extends IWifiManager.Stub {
		mWifiStateMachine.setCountryCode(countryCode, persist);
		}

		/**
		* Set the operational frequency band
		* @param band One of
		* {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
		* {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ},
		* {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ},
		* @param persist {@code true} if the setting should be remembered.
		*
		*/
		public void setFrequencyBand(int band, boolean persist) {
		enforceChangePermission();
		if (!isDualBandSupported()) return;
		Slog.i(TAG, "WifiService trying to set frequency band to " + band +
		" with persist set to " + persist);
		mWifiStateMachine.setFrequencyBand(band, persist);
		}


		/**
		* Get the operational frequency band
		*/
		public int getFrequencyBand() {
		enforceAccessPermission();
		return mWifiStateMachine.getFrequencyBand();
		}

		public boolean isDualBandSupported() {
		//TODO: Should move towards adding a driver API that checks at runtime
		return mContext.getResources().getBoolean(
		com.android.internal.R.bool.config_wifi_dual_band_support);
		}

		/**
		* Return the DHCP-assigned addresses from the last successful DHCP request,
		* if any.

wifi/java/android/net/wifi/IWifiManager.aidl

+6 −0

Original line number	Diff line number	Diff line
		@@ -60,6 +60,12 @@ interface IWifiManager

		void setCountryCode(String country, boolean persist);

		void setFrequencyBand(int band, boolean persist);

		int getFrequencyBand();

		boolean isDualBandSupported();

		boolean saveConfiguration();

		DhcpInfo getDhcpInfo();

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

+65 −1

Original line number	Diff line number	Diff line
		@@ -373,6 +373,25 @@ public class WifiManager {
		/** Anything better than or equal to this will show the max bars. */
		private static final int MAX_RSSI = -55;

		/**
		* 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.
		* @hide
		*/
		public static final int WIFI_FREQUENCY_BAND_AUTO = 0;

		/**
		* Operation on 5 GHz alone
		* @hide
		*/
		public static final int WIFI_FREQUENCY_BAND_5GHZ = 1;

		/**
		* Operation on 2.4 GHz alone
		* @hide
		*/
		public static final int WIFI_FREQUENCY_BAND_2GHZ = 2;

		IWifiManager mService;
		Handler mHandler;

		@@ -684,6 +703,51 @@ public class WifiManager {
		} catch (RemoteException e) { }
		}

		/**
		* Set the operational frequency band.
		* @param band One of
		* {@link #WIFI_FREQUENCY_BAND_AUTO},
		* {@link #WIFI_FREQUENCY_BAND_5GHZ},
		* {@link #WIFI_FREQUENCY_BAND_2GHZ},
		* @param persist {@code true} if this needs to be remembered
		* @hide
		*/
		public void setFrequencyBand(int band, boolean persist) {
		try {
		mService.setFrequencyBand(band, persist);
		} catch (RemoteException e) { }
		}

		/**
		* Get the operational frequency band.
		* @return One of
		* {@link #WIFI_FREQUENCY_BAND_AUTO},
		* {@link #WIFI_FREQUENCY_BAND_5GHZ},
		* {@link #WIFI_FREQUENCY_BAND_2GHZ} or
		* {@code -1} on failure.
		* @hide
		*/
		public int getFrequencyBand() {
		try {
		return mService.getFrequencyBand();
		} catch (RemoteException e) {
		return -1;
		}
		}

		/**
		* Check if the chipset supports dual frequency band (2.4 GHz and 5 GHz)
		* @return {@code true} if supported, {@code false} otherwise.
		* @hide
		*/
		public boolean isDualBandSupported() {
		try {
		return mService.isDualBandSupported();
		} catch (RemoteException e) {
		return false;
		}
		}

		/**
		* Return the DHCP-assigned addresses from the last successful DHCP request,
		* if any.