Add support for UsbDeviceManager to talk to USB GADGET HAL
Till now, Init scripts(property tiggers) are used define the
operation that needs to be performed when a certain gadget
composition needs to be enabled. Based on the user preference,
usb service sets the sys.usb.config which triggers the
corresponding property triggers in init scripts and usbservice
polls on sys.usb.state to infer whether the property triggers
have completed executing.
This CL makes UsbHandler class abstract to make init scripts
based legacy implementation and HAL based implementation to
share the common logic. The legacy init script based logic is
implemented by UsbHandlerLegacy and HAL based logic is implemented
by UsbHandlerHal. The decision on which one to initialize is
made depending on whether the device has Gadget HAL impelemented.
Since HIDL supports asynch calbacks, usb state management is moved
to the message queue to avoid polling incase of HAL based
implementation.
To switch to a new configuration:
1. UsbService calls setCurrentUsbFunctions and queues
MSG_SET_FUNCTIONS_TIMEOUT
2. If the setCurrentUsbFunctionsCb arrives on time,
then MSG_SET_FUNCTIONS_TIMEOUT is cancelled and
default functions are retried by queueing
MSG_SET_DEFAULT_FUNCTIONS if SUCCESS is not signalled.
3. If MSG_SET_FUNCTIONS_TIMEOUT gets executed, then,
default functions are retried by calling
setEnabledFunctions(null, false, mUsbDataUnlocked);
Also, for HAL based implementation config_oemUsbModeOverride is no
longer needed as hal can take of enabling oem specific functions.
Bug: 63669128
Test: Tested usb gadget configuration for both cases:
1. When gadget hal is present
2. When gadget hal is not present
Change-Id: Ifcef464a0b97b265872696346a76162f8e84d6c0
diff --git a/services/usb/Android.bp b/services/usb/Android.bp
index 0cd9ac3..feb7b76 100644
--- a/services/usb/Android.bp
+++ b/services/usb/Android.bp
@@ -10,5 +10,6 @@
static_libs: [
"android.hardware.usb-V1.0-java",
"android.hardware.usb-V1.1-java",
+ "android.hardware.usb.gadget-V1.0-java",
],
}
diff --git a/services/usb/java/com/android/server/usb/UsbDeviceManager.java b/services/usb/java/com/android/server/usb/UsbDeviceManager.java
index 4a7072d..e3e5e3e 100644
--- a/services/usb/java/com/android/server/usb/UsbDeviceManager.java
+++ b/services/usb/java/com/android/server/usb/UsbDeviceManager.java
@@ -41,13 +41,21 @@
import android.hardware.usb.UsbManager;
import android.hardware.usb.UsbPort;
import android.hardware.usb.UsbPortStatus;
+import android.hardware.usb.gadget.V1_0.GadgetFunction;
+import android.hardware.usb.gadget.V1_0.IUsbGadget;
+import android.hardware.usb.gadget.V1_0.IUsbGadgetCallback;
+import android.hardware.usb.gadget.V1_0.Status;
+import android.hidl.manager.V1_0.IServiceManager;
+import android.hidl.manager.V1_0.IServiceNotification;
import android.os.BatteryManager;
import android.os.Environment;
import android.os.FileUtils;
import android.os.Handler;
+import android.os.HwBinder;
import android.os.Looper;
import android.os.Message;
import android.os.ParcelFileDescriptor;
+import android.os.RemoteException;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.UEventObserver;
@@ -75,8 +83,10 @@
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
+import java.util.NoSuchElementException;
import java.util.Scanner;
import java.util.Set;
+import java.util.StringJoiner;
/**
* UsbDeviceManager manages USB state in device mode.
@@ -87,22 +97,6 @@
private static final boolean DEBUG = false;
/**
- * The persistent property which stores whether adb is enabled or not.
- * May also contain vendor-specific default functions for testing purposes.
- */
- private static final String USB_PERSISTENT_CONFIG_PROPERTY = "persist.sys.usb.config";
-
- /**
- * The non-persistent property which stores the current USB settings.
- */
- private static final String USB_CONFIG_PROPERTY = "sys.usb.config";
-
- /**
- * The non-persistent property which stores the current USB actual state.
- */
- private static final String USB_STATE_PROPERTY = "sys.usb.state";
-
- /**
* The SharedPreference setting per user that stores the screen unlocked functions between
* sessions.
*/
@@ -142,6 +136,10 @@
private static final int MSG_LOCALE_CHANGED = 11;
private static final int MSG_SET_SCREEN_UNLOCKED_FUNCTIONS = 12;
private static final int MSG_UPDATE_SCREEN_LOCK = 13;
+ private static final int MSG_SET_CHARGING_FUNCTIONS = 14;
+ private static final int MSG_SET_FUNCTIONS_TIMEOUT = 15;
+ private static final int MSG_GET_CURRENT_USB_FUNCTIONS = 16;
+ private static final int MSG_FUNCTION_SWITCH_TIMEOUT = 17;
private static final int AUDIO_MODE_SOURCE = 1;
@@ -157,9 +155,9 @@
private static final String BOOT_MODE_PROPERTY = "ro.bootmode";
private static final String ADB_NOTIFICATION_CHANNEL_ID_TV = "usbdevicemanager.adb.tv";
-
private UsbHandler mHandler;
private boolean mBootCompleted;
+ private boolean mSystemReady;
private final Object mLock = new Object();
@@ -175,7 +173,6 @@
private boolean mMidiEnabled;
private int mMidiCard;
private int mMidiDevice;
- private HashMap<String, HashMap<String, Pair<String, String>>> mOemModeMap;
private String[] mAccessoryStrings;
private UsbDebuggingManager mDebuggingManager;
private final UsbAlsaManager mUsbAlsaManager;
@@ -267,9 +264,27 @@
mHasUsbAccessory = pm.hasSystemFeature(PackageManager.FEATURE_USB_ACCESSORY);
initRndisAddress();
- readOemUsbOverrideConfig();
+ boolean halNotPresent = false;
+ try {
+ IUsbGadget.getService(true);
+ } catch (RemoteException e) {
+ Slog.e(TAG, "USB GADGET HAL present but exception thrown", e);
+ } catch (NoSuchElementException e) {
+ halNotPresent = true;
+ Slog.i(TAG, "USB GADGET HAL not present in the device", e);
+ }
- mHandler = new UsbHandler(FgThread.get().getLooper());
+ if (halNotPresent) {
+ /**
+ * Initialze the legacy UsbHandler
+ */
+ mHandler = new UsbHandlerLegacy(FgThread.get().getLooper(), mContext);
+ } else {
+ /**
+ * Initialize HAL based UsbHandler
+ */
+ mHandler = new UsbHandlerHal(FgThread.get().getLooper());
+ }
if (nativeIsStartRequested()) {
if (DEBUG) Slog.d(TAG, "accessory attached at boot");
@@ -367,15 +382,6 @@
massStorageSupported = primary != null && primary.allowMassStorage();
mUseUsbNotification = !massStorageSupported && mContext.getResources().getBoolean(
com.android.internal.R.bool.config_usbChargingMessage);
-
- // make sure the ADB_ENABLED setting value matches the current state
- try {
- Settings.Global.putInt(mContentResolver,
- Settings.Global.ADB_ENABLED, mAdbEnabled ? 1 : 0);
- } catch (SecurityException e) {
- // If UserManager.DISALLOW_DEBUGGING_FEATURES is on, that this setting can't be changed.
- Slog.d(TAG, "ADB_ENABLED is restricted.");
- }
mHandler.sendEmptyMessage(MSG_SYSTEM_READY);
}
@@ -457,7 +463,7 @@
return context.getSharedPreferences(prefsFile, Context.MODE_PRIVATE);
}
- private final class UsbHandler extends Handler {
+ private abstract class UsbHandler extends Handler {
// current USB state
private boolean mConnected;
@@ -465,78 +471,53 @@
private boolean mSourcePower;
private boolean mSinkPower;
private boolean mConfigured;
- private boolean mUsbDataUnlocked;
+ protected boolean mUsbDataUnlocked;
private boolean mAudioAccessoryConnected;
private boolean mAudioAccessorySupported;
- private String mCurrentFunctions;
- private boolean mCurrentFunctionsApplied;
+ protected String mCurrentFunctions;
+ protected boolean mCurrentFunctionsApplied;
private UsbAccessory mCurrentAccessory;
private int mUsbNotificationId;
private boolean mAdbNotificationShown;
private int mCurrentUser;
private boolean mUsbCharging;
- private String mCurrentOemFunctions;
private boolean mHideUsbNotification;
private boolean mSupportsAllCombinations;
private String mScreenUnlockedFunctions = UsbManager.USB_FUNCTION_NONE;
private boolean mScreenLocked;
+ protected boolean mCurrentUsbFunctionsRequested;
+ protected boolean mCurrentUsbFunctionsReceived;
+
+ /**
+ * The persistent property which stores whether adb is enabled or not.
+ * May also contain vendor-specific default functions for testing purposes.
+ */
+ protected static final String USB_PERSISTENT_CONFIG_PROPERTY = "persist.sys.usb.config";
public UsbHandler(Looper looper) {
super(looper);
- try {
- // Restore default functions.
- mCurrentOemFunctions = SystemProperties.get(UsbDeviceManager.getPersistProp(false),
- UsbManager.USB_FUNCTION_NONE);
- if (isNormalBoot()) {
- mCurrentFunctions = SystemProperties.get(USB_CONFIG_PROPERTY,
- UsbManager.USB_FUNCTION_NONE);
- mCurrentFunctionsApplied = mCurrentFunctions.equals(
- SystemProperties.get(USB_STATE_PROPERTY));
- } else {
- mCurrentFunctions = SystemProperties.get(getPersistProp(true),
- UsbManager.USB_FUNCTION_NONE);
- mCurrentFunctionsApplied = SystemProperties.get(USB_CONFIG_PROPERTY,
- UsbManager.USB_FUNCTION_NONE).equals(
- SystemProperties.get(USB_STATE_PROPERTY));
- }
+ mCurrentUser = ActivityManager.getCurrentUser();
+ mScreenLocked = true;
- mCurrentUser = ActivityManager.getCurrentUser();
- mScreenLocked = true;
+ /*
+ * Use the normal bootmode persistent prop to maintain state of adb across
+ * all boot modes.
+ */
+ mAdbEnabled = UsbManager.containsFunction(
+ SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY),
+ UsbManager.USB_FUNCTION_ADB);
- /*
- * Use the normal bootmode persistent prop to maintain state of adb across
- * all boot modes.
- */
- mAdbEnabled = UsbManager.containsFunction(
- SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY),
- UsbManager.USB_FUNCTION_ADB);
-
- /*
- * Previous versions can set persist config to mtp/ptp but it does not
- * get reset on OTA. Reset the property here instead.
- */
- String persisted = SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY);
- if (UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_MTP)
- || UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_PTP)) {
- SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY,
- UsbManager.removeFunction(UsbManager.removeFunction(persisted,
- UsbManager.USB_FUNCTION_MTP), UsbManager.USB_FUNCTION_PTP));
- }
-
- String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
- updateState(state);
-
- // register observer to listen for settings changes
- mContentResolver.registerContentObserver(
- Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
- false, new AdbSettingsObserver());
-
- // Watch for USB configuration changes
- mUEventObserver.startObserving(USB_STATE_MATCH);
- mUEventObserver.startObserving(ACCESSORY_START_MATCH);
- } catch (Exception e) {
- Slog.e(TAG, "Error initializing UsbHandler", e);
+ /*
+ * Previous versions can set persist config to mtp/ptp but it does not
+ * get reset on OTA. Reset the property here instead.
+ */
+ String persisted = SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY);
+ if (UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_MTP)
+ || UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_PTP)) {
+ SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY,
+ UsbManager.removeFunction(UsbManager.removeFunction(persisted,
+ UsbManager.USB_FUNCTION_MTP), UsbManager.USB_FUNCTION_PTP));
}
}
@@ -562,6 +543,21 @@
sendMessage(m);
}
+ public void sendMessage(int what, boolean arg1, boolean arg2) {
+ removeMessages(what);
+ Message m = Message.obtain(this, what);
+ m.arg1 = (arg1 ? 1 : 0);
+ m.arg2 = (arg2 ? 1 : 0);
+ sendMessage(m);
+ }
+
+ public void sendMessageDelayed(int what, boolean arg, long delayMillis) {
+ removeMessages(what);
+ Message m = Message.obtain(this, what);
+ m.arg1 = (arg ? 1 : 0);
+ sendMessageDelayed(m, delayMillis);
+ }
+
public void updateState(String state) {
int connected, configured;
@@ -579,6 +575,7 @@
return;
}
removeMessages(MSG_UPDATE_STATE);
+ if (connected == 1) removeMessages(MSG_FUNCTION_SWITCH_TIMEOUT);
Message msg = Message.obtain(this, MSG_UPDATE_STATE);
msg.arg1 = connected;
msg.arg2 = configured;
@@ -601,28 +598,6 @@
sendMessageDelayed(msg, UPDATE_DELAY);
}
- private boolean waitForState(String state) {
- // wait for the transition to complete.
- // give up after 1 second.
- String value = null;
- for (int i = 0; i < 20; i++) {
- // State transition is done when sys.usb.state is set to the new configuration
- value = SystemProperties.get(USB_STATE_PROPERTY);
- if (state.equals(value)) return true;
- SystemClock.sleep(50);
- }
- Slog.e(TAG, "waitForState(" + state + ") FAILED: got " + value);
- return false;
- }
-
- private void setUsbConfig(String config) {
- if (DEBUG) Slog.d(TAG, "setUsbConfig(" + config + ")");
- // set the new configuration
- // we always set it due to b/23631400, where adbd was getting killed
- // and not restarted due to property timeouts on some devices
- SystemProperties.set(USB_CONFIG_PROPERTY, config);
- }
-
private void setAdbEnabled(boolean enable) {
if (DEBUG) Slog.d(TAG, "setAdbEnabled: " + enable);
if (enable != mAdbEnabled) {
@@ -649,114 +624,7 @@
}
}
- /**
- * Evaluates USB function policies and applies the change accordingly.
- */
- private void setEnabledFunctions(String functions, boolean forceRestart,
- boolean usbDataUnlocked) {
- if (DEBUG) {
- Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", "
- + "forceRestart=" + forceRestart + ", usbDataUnlocked=" + usbDataUnlocked);
- }
-
- if (usbDataUnlocked != mUsbDataUnlocked) {
- mUsbDataUnlocked = usbDataUnlocked;
- updateUsbNotification(false);
- forceRestart = true;
- }
-
- // Try to set the enabled functions.
- final String oldFunctions = mCurrentFunctions;
- final boolean oldFunctionsApplied = mCurrentFunctionsApplied;
- if (trySetEnabledFunctions(functions, forceRestart)) {
- return;
- }
-
- // Didn't work. Try to revert changes.
- // We always reapply the policy in case certain constraints changed such as
- // user restrictions independently of any other new functions we were
- // trying to activate.
- if (oldFunctionsApplied && !oldFunctions.equals(functions)) {
- Slog.e(TAG, "Failsafe 1: Restoring previous USB functions.");
- if (trySetEnabledFunctions(oldFunctions, false)) {
- return;
- }
- }
-
- // Still didn't work. Try to restore the default functions.
- Slog.e(TAG, "Failsafe 2: Restoring default USB functions.");
- if (trySetEnabledFunctions(null, false)) {
- return;
- }
-
- // Now we're desperate. Ignore the default functions.
- // Try to get ADB working if enabled.
- Slog.e(TAG, "Failsafe 3: Restoring empty function list (with ADB if enabled).");
- if (trySetEnabledFunctions(UsbManager.USB_FUNCTION_NONE, false)) {
- return;
- }
-
- // Ouch.
- Slog.e(TAG, "Unable to set any USB functions!");
- }
-
- private boolean isNormalBoot() {
- String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
- return bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown");
- }
-
- private boolean trySetEnabledFunctions(String functions, boolean forceRestart) {
- if (functions == null || applyAdbFunction(functions)
- .equals(UsbManager.USB_FUNCTION_NONE)) {
- functions = getChargingFunctions();
- }
- functions = applyAdbFunction(functions);
-
- String oemFunctions = applyOemOverrideFunction(functions);
-
- if (!isNormalBoot() && !mCurrentFunctions.equals(functions)) {
- SystemProperties.set(getPersistProp(true), functions);
- }
-
- if ((!functions.equals(oemFunctions) &&
- !mCurrentOemFunctions.equals(oemFunctions))
- || !mCurrentFunctions.equals(functions)
- || !mCurrentFunctionsApplied
- || forceRestart) {
- Slog.i(TAG, "Setting USB config to " + functions);
- mCurrentFunctions = functions;
- mCurrentOemFunctions = oemFunctions;
- mCurrentFunctionsApplied = false;
-
- // Kick the USB stack to close existing connections.
- setUsbConfig(UsbManager.USB_FUNCTION_NONE);
-
- if (!waitForState(UsbManager.USB_FUNCTION_NONE)) {
- Slog.e(TAG, "Failed to kick USB config");
- return false;
- }
-
- // Set the new USB configuration.
- setUsbConfig(oemFunctions);
-
- if (mBootCompleted
- && (UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_MTP)
- || UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_PTP))) {
- // Start up dependent services.
- updateUsbStateBroadcastIfNeeded(true);
- }
-
- if (!waitForState(oemFunctions)) {
- Slog.e(TAG, "Failed to switch USB config to " + functions);
- return false;
- }
-
- mCurrentFunctionsApplied = true;
- }
- return true;
- }
-
- private String applyAdbFunction(String functions) {
+ protected String applyAdbFunction(String functions) {
// Do not pass null pointer to the UsbManager.
// There isnt a check there.
if (functions == null) {
@@ -838,7 +706,7 @@
return false;
}
- private void updateUsbStateBroadcastIfNeeded(boolean configChanged) {
+ protected void updateUsbStateBroadcastIfNeeded(boolean configChanged) {
// send a sticky broadcast containing current USB state
Intent intent = new Intent(UsbManager.ACTION_USB_STATE);
intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING
@@ -956,7 +824,8 @@
updateCurrentAccessory();
}
if (mBootCompleted) {
- if (!mConnected && !hasMessages(MSG_ACCESSORY_MODE_ENTER_TIMEOUT)) {
+ if (!mConnected && !hasMessages(MSG_ACCESSORY_MODE_ENTER_TIMEOUT)
+ && !hasMessages(MSG_FUNCTION_SWITCH_TIMEOUT)) {
// restore defaults when USB is disconnected
if (!mScreenLocked
&& !UsbManager.USB_FUNCTION_NONE.equals(
@@ -1082,7 +951,7 @@
if (!UsbManager.USB_FUNCTION_NONE.equals(mScreenUnlockedFunctions)
&& (UsbManager.USB_FUNCTION_ADB.equals(mCurrentFunctions)
|| (UsbManager.USB_FUNCTION_MTP.equals(mCurrentFunctions)
- && !mUsbDataUnlocked))) {
+ && !mUsbDataUnlocked))) {
// Set the screen unlocked functions if current function is charging.
setScreenUnlockedFunctions();
}
@@ -1097,9 +966,8 @@
mCurrentFunctions, forceRestart, mUsbDataUnlocked && !forceRestart);
break;
case MSG_SYSTEM_READY:
- updateUsbNotification(false);
- updateAdbNotification(false);
- updateUsbFunctions();
+ mSystemReady = true;
+ finishBoot();
break;
case MSG_LOCALE_CHANGED:
updateAdbNotification(true);
@@ -1107,23 +975,7 @@
break;
case MSG_BOOT_COMPLETED:
mBootCompleted = true;
- if (mPendingBootBroadcast) {
- updateUsbStateBroadcastIfNeeded(false);
- mPendingBootBroadcast = false;
- }
-
- if (!mScreenLocked
- && !UsbManager.USB_FUNCTION_NONE.equals(mScreenUnlockedFunctions)) {
- setScreenUnlockedFunctions();
- } else {
- setEnabledFunctions(null, false, false);
- }
- if (mCurrentAccessory != null) {
- getCurrentSettings().accessoryAttached(mCurrentAccessory);
- }
- if (mDebuggingManager != null) {
- mDebuggingManager.setAdbEnabled(mAdbEnabled);
- }
+ finishBoot();
break;
case MSG_USER_SWITCHED: {
if (mCurrentUser != msg.arg1) {
@@ -1153,6 +1005,41 @@
}
}
+ protected void finishBoot() {
+ if (mBootCompleted && mCurrentUsbFunctionsReceived && mSystemReady) {
+ if (mPendingBootBroadcast) {
+ updateUsbStateBroadcastIfNeeded(false);
+ mPendingBootBroadcast = false;
+ }
+ if (!mScreenLocked
+ && !UsbManager.USB_FUNCTION_NONE.equals(mScreenUnlockedFunctions)) {
+ setScreenUnlockedFunctions();
+ } else {
+ setEnabledFunctions(null, false, false);
+ }
+ if (mCurrentAccessory != null) {
+ getCurrentSettings().accessoryAttached(mCurrentAccessory);
+ }
+ if (mDebuggingManager != null) {
+ mDebuggingManager.setAdbEnabled(mAdbEnabled);
+ }
+
+ // make sure the ADB_ENABLED setting value matches the current state
+ try {
+ Settings.Global.putInt(mContentResolver,
+ Settings.Global.ADB_ENABLED, mAdbEnabled ? 1 : 0);
+ } catch (SecurityException e) {
+ // If UserManager.DISALLOW_DEBUGGING_FEATURES is on, that this setting can't
+ // be changed.
+ Slog.d(TAG, "ADB_ENABLED is restricted.");
+ }
+
+ updateUsbNotification(false);
+ updateAdbNotification(false);
+ updateUsbFunctions();
+ }
+ }
+
private boolean isUsbDataTransferActive() {
return UsbManager.containsFunction(mCurrentFunctions, UsbManager.USB_FUNCTION_MTP)
|| UsbManager.containsFunction(mCurrentFunctions, UsbManager.USB_FUNCTION_PTP);
@@ -1162,7 +1049,7 @@
return mCurrentAccessory;
}
- private void updateUsbNotification(boolean force) {
+ protected void updateUsbNotification(boolean force) {
if (mNotificationManager == null || !mUseUsbNotification
|| ("0".equals(SystemProperties.get("persist.charging.notify")))) {
return;
@@ -1262,18 +1149,18 @@
}
Notification.Builder builder = new Notification.Builder(mContext, channel)
- .setSmallIcon(com.android.internal.R.drawable.stat_sys_adb)
- .setWhen(0)
- .setOngoing(true)
- .setTicker(title)
- .setDefaults(0) // please be quiet
- .setColor(mContext.getColor(
- com.android.internal.R.color
- .system_notification_accent_color))
- .setContentTitle(title)
- .setContentText(message)
- .setContentIntent(pi)
- .setVisibility(Notification.VISIBILITY_PUBLIC);
+ .setSmallIcon(com.android.internal.R.drawable.stat_sys_adb)
+ .setWhen(0)
+ .setOngoing(true)
+ .setTicker(title)
+ .setDefaults(0) // please be quiet
+ .setColor(mContext.getColor(
+ com.android.internal.R.color
+ .system_notification_accent_color))
+ .setContentTitle(title)
+ .setContentText(message)
+ .setContentIntent(pi)
+ .setVisibility(Notification.VISIBILITY_PUBLIC);
if (titleRes
== com.android.internal.R.string
@@ -1291,7 +1178,7 @@
}
}
- private void updateAdbNotification(boolean force) {
+ protected void updateAdbNotification(boolean force) {
if (mNotificationManager == null) return;
final int id = SystemMessage.NOTE_ADB_ACTIVE;
final int titleRes = com.android.internal.R.string.adb_active_notification_title;
@@ -1343,22 +1230,23 @@
}
}
- private String getChargingFunctions() {
- String func = SystemProperties.get(getPersistProp(true),
- UsbManager.USB_FUNCTION_NONE);
+ protected String getChargingFunctions() {
// if ADB is enabled, reset functions to ADB
// else enable MTP as usual.
- if (UsbManager.containsFunction(func, UsbManager.USB_FUNCTION_ADB)) {
+ if (mAdbEnabled) {
return UsbManager.USB_FUNCTION_ADB;
} else {
return UsbManager.USB_FUNCTION_MTP;
}
}
+ public boolean isFunctionEnabled(String function) {
+ return UsbManager.containsFunction(mCurrentFunctions, function);
+ }
+
public void dump(IndentingPrintWriter pw) {
pw.println("USB Device State:");
pw.println(" mCurrentFunctions: " + mCurrentFunctions);
- pw.println(" mCurrentOemFunctions: " + mCurrentOemFunctions);
pw.println(" mCurrentFunctionsApplied: " + mCurrentFunctionsApplied);
pw.println(" mScreenUnlockedFunctions: " + mScreenUnlockedFunctions);
pw.println(" mScreenLocked: " + mScreenLocked);
@@ -1372,6 +1260,7 @@
pw.println(" mUsbCharging: " + mUsbCharging);
pw.println(" mHideUsbNotification: " + mHideUsbNotification);
pw.println(" mAudioAccessoryConnected: " + mAudioAccessoryConnected);
+ pw.println(" mAdbEnabled: " + mAdbEnabled);
try {
pw.println(" Kernel state: "
@@ -1382,6 +1271,675 @@
pw.println("IOException: " + e);
}
}
+
+ /**
+ * Evaluates USB function policies and applies the change accordingly.
+ */
+ protected abstract void setEnabledFunctions(String functions, boolean forceRestart,
+ boolean usbDataUnlocked);
+
+ }
+
+ private final class UsbHandlerLegacy extends UsbHandler {
+ /**
+ * The non-persistent property which stores the current USB settings.
+ */
+ private static final String USB_CONFIG_PROPERTY = "sys.usb.config";
+
+ /**
+ * The non-persistent property which stores the current USB actual state.
+ */
+ private static final String USB_STATE_PROPERTY = "sys.usb.state";
+
+ private HashMap<String, HashMap<String, Pair<String, String>>> mOemModeMap;
+ private String mCurrentOemFunctions;
+
+ UsbHandlerLegacy(Looper looper, Context context) {
+ super(looper);
+ try {
+ readOemUsbOverrideConfig(context);
+ // Restore default functions.
+ mCurrentOemFunctions = SystemProperties.get(getPersistProp(false),
+ UsbManager.USB_FUNCTION_NONE);
+ if (isNormalBoot()) {
+ mCurrentFunctions = SystemProperties.get(USB_CONFIG_PROPERTY,
+ UsbManager.USB_FUNCTION_NONE);
+ mCurrentFunctionsApplied = mCurrentFunctions.equals(
+ SystemProperties.get(USB_STATE_PROPERTY));
+ } else {
+ mCurrentFunctions = SystemProperties.get(getPersistProp(true),
+ UsbManager.USB_FUNCTION_NONE);
+ mCurrentFunctionsApplied = SystemProperties.get(USB_CONFIG_PROPERTY,
+ UsbManager.USB_FUNCTION_NONE).equals(
+ SystemProperties.get(USB_STATE_PROPERTY));
+ }
+ mCurrentUsbFunctionsReceived = true;
+
+ String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
+ updateState(state);
+
+ // register observer to listen for settings changes
+ mContentResolver.registerContentObserver(
+ Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
+ false, new AdbSettingsObserver());
+
+ // Watch for USB configuration changes
+ mUEventObserver.startObserving(USB_STATE_MATCH);
+ mUEventObserver.startObserving(ACCESSORY_START_MATCH);
+ } catch (Exception e) {
+ Slog.e(TAG, "Error initializing UsbHandler", e);
+ }
+ }
+
+ private void readOemUsbOverrideConfig(Context context) {
+ String[] configList = mContext.getResources().getStringArray(
+ com.android.internal.R.array.config_oemUsbModeOverride);
+
+ if (configList != null) {
+ for (String config : configList) {
+ String[] items = config.split(":");
+ if (items.length == 3 || items.length == 4) {
+ if (mOemModeMap == null) {
+ mOemModeMap = new HashMap<>();
+ }
+ HashMap<String, Pair<String, String>> overrideMap =
+ mOemModeMap.get(items[0]);
+ if (overrideMap == null) {
+ overrideMap = new HashMap<>();
+ mOemModeMap.put(items[0], overrideMap);
+ }
+
+ // Favoring the first combination if duplicate exists
+ if (!overrideMap.containsKey(items[1])) {
+ if (items.length == 3) {
+ overrideMap.put(items[1], new Pair<>(items[2], ""));
+ } else {
+ overrideMap.put(items[1], new Pair<>(items[2], items[3]));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ private String applyOemOverrideFunction(String usbFunctions) {
+ if ((usbFunctions == null) || (mOemModeMap == null)) {
+ return usbFunctions;
+ }
+
+ String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
+ Slog.d(TAG, "applyOemOverride usbfunctions=" + usbFunctions + " bootmode=" + bootMode);
+
+ Map<String, Pair<String, String>> overridesMap =
+ mOemModeMap.get(bootMode);
+ // Check to ensure that the oem is not overriding in the normal
+ // boot mode
+ if (overridesMap != null && !(bootMode.equals(NORMAL_BOOT)
+ || bootMode.equals("unknown"))) {
+ Pair<String, String> overrideFunctions =
+ overridesMap.get(usbFunctions);
+ if (overrideFunctions != null) {
+ Slog.d(TAG, "OEM USB override: " + usbFunctions
+ + " ==> " + overrideFunctions.first
+ + " persist across reboot "
+ + overrideFunctions.second);
+ if (!overrideFunctions.second.equals("")) {
+ String newFunction;
+ if (mAdbEnabled) {
+ newFunction = UsbManager.addFunction(overrideFunctions.second,
+ UsbManager.USB_FUNCTION_ADB);
+ } else {
+ newFunction = overrideFunctions.second;
+ }
+ Slog.d(TAG, "OEM USB override persisting: " + newFunction + "in prop: "
+ + getPersistProp(false));
+ SystemProperties.set(getPersistProp(false),
+ newFunction);
+ }
+ return overrideFunctions.first;
+ } else if (mAdbEnabled) {
+ String newFunction = UsbManager.addFunction(UsbManager.USB_FUNCTION_NONE,
+ UsbManager.USB_FUNCTION_ADB);
+ SystemProperties.set(getPersistProp(false),
+ newFunction);
+ } else {
+ SystemProperties.set(getPersistProp(false),
+ UsbManager.USB_FUNCTION_NONE);
+ }
+ }
+ // return passed in functions as is.
+ return usbFunctions;
+ }
+
+ private boolean waitForState(String state) {
+ // wait for the transition to complete.
+ // give up after 1 second.
+ String value = null;
+ for (int i = 0; i < 20; i++) {
+ // State transition is done when sys.usb.state is set to the new configuration
+ value = SystemProperties.get(USB_STATE_PROPERTY);
+ if (state.equals(value)) return true;
+ SystemClock.sleep(50);
+ }
+ Slog.e(TAG, "waitForState(" + state + ") FAILED: got " + value);
+ return false;
+ }
+
+ private void setUsbConfig(String config) {
+ if (DEBUG) Slog.d(TAG, "setUsbConfig(" + config + ")");
+ /**
+ * set the new configuration
+ * we always set it due to b/23631400, where adbd was getting killed
+ * and not restarted due to property timeouts on some devices
+ */
+ SystemProperties.set(USB_CONFIG_PROPERTY, config);
+ }
+
+ @Override
+ protected void setEnabledFunctions(String functions, boolean forceRestart,
+ boolean usbDataUnlocked) {
+ if (DEBUG) {
+ Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", "
+ + "forceRestart=" + forceRestart + ", usbDataUnlocked=" + usbDataUnlocked);
+ }
+
+ if (usbDataUnlocked != mUsbDataUnlocked) {
+ mUsbDataUnlocked = usbDataUnlocked;
+ updateUsbNotification(false);
+ forceRestart = true;
+ }
+
+ /**
+ * Try to set the enabled functions.
+ */
+ final String oldFunctions = mCurrentFunctions;
+ final boolean oldFunctionsApplied = mCurrentFunctionsApplied;
+ if (trySetEnabledFunctions(functions, forceRestart)) {
+ return;
+ }
+
+ /**
+ * Didn't work. Try to revert changes.
+ * We always reapply the policy in case certain constraints changed such as
+ * user restrictions independently of any other new functions we were
+ * trying to activate.
+ */
+ if (oldFunctionsApplied && !oldFunctions.equals(functions)) {
+ Slog.e(TAG, "Failsafe 1: Restoring previous USB functions.");
+ if (trySetEnabledFunctions(oldFunctions, false)) {
+ return;
+ }
+ }
+
+ /**
+ * Still didn't work. Try to restore the default functions.
+ */
+ Slog.e(TAG, "Failsafe 2: Restoring default USB functions.");
+ if (trySetEnabledFunctions(null, false)) {
+ return;
+ }
+
+ /**
+ * Now we're desperate. Ignore the default functions.
+ * Try to get ADB working if enabled.
+ */
+ Slog.e(TAG, "Failsafe 3: Restoring empty function list (with ADB if enabled).");
+ if (trySetEnabledFunctions(UsbManager.USB_FUNCTION_NONE, false)) {
+ return;
+ }
+
+ /**
+ * Ouch.
+ */
+ Slog.e(TAG, "Unable to set any USB functions!");
+ }
+
+ private boolean isNormalBoot() {
+ String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
+ return bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown");
+ }
+
+ private boolean trySetEnabledFunctions(String functions, boolean forceRestart) {
+ if (functions == null || applyAdbFunction(functions)
+ .equals(UsbManager.USB_FUNCTION_NONE)) {
+ functions = getChargingFunctions();
+ }
+ functions = applyAdbFunction(functions);
+
+ String oemFunctions = applyOemOverrideFunction(functions);
+
+ if (!isNormalBoot() && !mCurrentFunctions.equals(functions)) {
+ SystemProperties.set(getPersistProp(true), functions);
+ }
+
+ if ((!functions.equals(oemFunctions)
+ && !mCurrentOemFunctions.equals(oemFunctions))
+ || !mCurrentFunctions.equals(functions)
+ || !mCurrentFunctionsApplied
+ || forceRestart) {
+ Slog.i(TAG, "Setting USB config to " + functions);
+ mCurrentFunctions = functions;
+ mCurrentOemFunctions = oemFunctions;
+ mCurrentFunctionsApplied = false;
+
+ /**
+ * Kick the USB stack to close existing connections.
+ */
+ setUsbConfig(UsbManager.USB_FUNCTION_NONE);
+
+ if (!waitForState(UsbManager.USB_FUNCTION_NONE)) {
+ Slog.e(TAG, "Failed to kick USB config");
+ return false;
+ }
+
+ /**
+ * Set the new USB configuration.
+ */
+ setUsbConfig(oemFunctions);
+
+ if (mBootCompleted
+ && (UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_MTP)
+ || UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_PTP))) {
+ /**
+ * Start up dependent services.
+ */
+ updateUsbStateBroadcastIfNeeded(true);
+ }
+
+ if (!waitForState(oemFunctions)) {
+ Slog.e(TAG, "Failed to switch USB config to " + functions);
+ return false;
+ }
+
+ mCurrentFunctionsApplied = true;
+ }
+ return true;
+ }
+
+ private String getPersistProp(boolean functions) {
+ String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
+ String persistProp = USB_PERSISTENT_CONFIG_PROPERTY;
+ if (!(bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown"))) {
+ if (functions) {
+ persistProp = "persist.sys.usb." + bootMode + ".func";
+ } else {
+ persistProp = "persist.sys.usb." + bootMode + ".config";
+ }
+ }
+ return persistProp;
+ }
+ }
+
+ private final class UsbHandlerHal extends UsbHandler {
+
+ /**
+ * Proxy object for the usb gadget hal daemon.
+ */
+ @GuardedBy("mGadgetProxyLock")
+ private IUsbGadget mGadgetProxy;
+
+ private final Object mGadgetProxyLock = new Object();
+
+ /**
+ * Cookie sent for usb gadget hal death notification.
+ */
+ private static final int USB_GADGET_HAL_DEATH_COOKIE = 2000;
+
+ /**
+ * Keeps track of the latest setCurrentUsbFunctions request number.
+ */
+ private int mCurrentRequest = 0;
+
+ /**
+ * The maximum time for which the UsbDeviceManager would wait once
+ * setCurrentUsbFunctions is called.
+ */
+ private static final int SET_FUNCTIONS_TIMEOUT_MS = 3000;
+
+ /**
+ * Conseration leeway to make sure that the hal callback arrives before
+ * SET_FUNCTIONS_TIMEOUT_MS expires. If the callback does not arrive
+ * within SET_FUNCTIONS_TIMEOUT_MS, UsbDeviceManager retries enabling
+ * default functions.
+ */
+ private static final int SET_FUNCTIONS_LEEWAY_MS = 500;
+
+ /**
+ * While switching functions, a disconnect is excpect as the usb gadget
+ * us torn down and brought back up. Wait for SET_FUNCTIONS_TIMEOUT_MS +
+ * ENUMERATION_TIME_OUT_MS before switching back to default fumctions when
+ * switching functions.
+ */
+ private static final int ENUMERATION_TIME_OUT_MS = 2000;
+
+ /**
+ * Command to start native service.
+ */
+ protected static final String CTL_START = "ctl.start";
+
+ /**
+ * Command to start native service.
+ */
+ protected static final String CTL_STOP = "ctl.stop";
+
+ /**
+ * Adb natvie daemon
+ */
+ protected static final String ADBD = "adbd";
+
+
+ UsbHandlerHal(Looper looper) {
+ super(looper);
+ try {
+ ServiceNotification serviceNotification = new ServiceNotification();
+
+ boolean ret = IServiceManager.getService()
+ .registerForNotifications("android.hardware.usb.gadget@1.0::IUsbGadget",
+ "", serviceNotification);
+ if (!ret) {
+ Slog.e(TAG, "Failed to register usb gadget service start notification");
+ return;
+ }
+
+ synchronized (mGadgetProxyLock) {
+ mGadgetProxy = IUsbGadget.getService(true);
+ mGadgetProxy.linkToDeath(new UsbGadgetDeathRecipient(),
+ USB_GADGET_HAL_DEATH_COOKIE);
+ mCurrentFunctions = UsbManager.USB_FUNCTION_NONE;
+ mGadgetProxy.getCurrentUsbFunctions(new UsbGadgetCallback());
+ mCurrentUsbFunctionsRequested = true;
+ }
+ String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
+ updateState(state);
+
+ /**
+ * Register observer to listen for settings changes.
+ */
+ mContentResolver.registerContentObserver(
+ Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
+ false, new AdbSettingsObserver());
+
+ /**
+ * Watch for USB configuration changes.
+ */
+ mUEventObserver.startObserving(USB_STATE_MATCH);
+ mUEventObserver.startObserving(ACCESSORY_START_MATCH);
+ } catch (NoSuchElementException e) {
+ Slog.e(TAG, "Usb gadget hal not found", e);
+ } catch (RemoteException e) {
+ Slog.e(TAG, "Usb Gadget hal not responding", e);
+ } catch (Exception e) {
+ Slog.e(TAG, "Error initializing UsbHandler", e);
+ }
+ }
+
+
+ final class UsbGadgetDeathRecipient implements HwBinder.DeathRecipient {
+ @Override
+ public void serviceDied(long cookie) {
+ if (cookie == USB_GADGET_HAL_DEATH_COOKIE) {
+ Slog.e(TAG, "Usb Gadget hal service died cookie: " + cookie);
+ synchronized (mGadgetProxyLock) {
+ mGadgetProxy = null;
+ }
+ }
+ }
+ }
+
+ final class ServiceNotification extends IServiceNotification.Stub {
+ @Override
+ public void onRegistration(String fqName, String name, boolean preexisting) {
+ Slog.i(TAG, "Usb gadget hal service started " + fqName + " " + name);
+ synchronized (mGadgetProxyLock) {
+ try {
+ mGadgetProxy = IUsbGadget.getService();
+ mGadgetProxy.linkToDeath(new UsbGadgetDeathRecipient(),
+ USB_GADGET_HAL_DEATH_COOKIE);
+ if (!mCurrentFunctionsApplied) {
+ setCurrentFunctions(mCurrentFunctions, mUsbDataUnlocked);
+ }
+ } catch (NoSuchElementException e) {
+ Slog.e(TAG, "Usb gadget hal not found", e);
+ } catch (RemoteException e) {
+ Slog.e(TAG, "Usb Gadget hal not responding", e);
+ }
+ }
+ }
+ }
+
+ @Override
+ public void handleMessage(Message msg) {
+ switch (msg.what) {
+ case MSG_SET_CHARGING_FUNCTIONS:
+ setEnabledFunctions(null, false, mUsbDataUnlocked);
+ break;
+ case MSG_SET_FUNCTIONS_TIMEOUT:
+ Slog.e(TAG, "Set functions timed out! no reply from usb hal");
+ if (msg.arg1 != 1) {
+ setEnabledFunctions(null, false, mUsbDataUnlocked);
+ }
+ break;
+ case MSG_GET_CURRENT_USB_FUNCTIONS:
+ Slog.e(TAG, "prcessing MSG_GET_CURRENT_USB_FUNCTIONS");
+ mCurrentUsbFunctionsReceived = true;
+
+ if (mCurrentUsbFunctionsRequested) {
+ Slog.e(TAG, "updating mCurrentFunctions");
+ mCurrentFunctions = functionListToString((Long) msg.obj);
+ Slog.e(TAG,
+ "mCurrentFunctions:" + mCurrentFunctions + "applied:" + msg.arg1);
+ mCurrentFunctionsApplied = msg.arg1 == 1;
+ }
+ finishBoot();
+ break;
+ case MSG_FUNCTION_SWITCH_TIMEOUT:
+ /**
+ * Dont force to default when the configuration is already set to default.
+ */
+ if (msg.arg1 != 1) {
+ setEnabledFunctions(null, !mAdbEnabled, false);
+ }
+ break;
+ default:
+ super.handleMessage(msg);
+ }
+ }
+
+ private class UsbGadgetCallback extends IUsbGadgetCallback.Stub {
+ int mRequest;
+ long mFunctions;
+ boolean mChargingFunctions;
+
+ UsbGadgetCallback() {
+ }
+
+ UsbGadgetCallback(int request, long functions,
+ boolean chargingFunctions) {
+ mRequest = request;
+ mFunctions = functions;
+ mChargingFunctions = chargingFunctions;
+ }
+
+ @Override
+ public void setCurrentUsbFunctionsCb(long functions,
+ int status) {
+ /**
+ * Callback called for a previous setCurrenUsbFunction
+ */
+ if ((mCurrentRequest != mRequest) || !hasMessages(MSG_SET_FUNCTIONS_TIMEOUT)
+ || (mFunctions != functions)) {
+ return;
+ }
+
+ removeMessages(MSG_SET_FUNCTIONS_TIMEOUT);
+ Slog.e(TAG, "notifyCurrentFunction request:" + mRequest + " status:" + status);
+ if (status == Status.SUCCESS) {
+ mCurrentFunctionsApplied = true;
+ } else if (!mChargingFunctions) {
+ Slog.e(TAG, "Setting default fuctions");
+ sendEmptyMessage(MSG_SET_CHARGING_FUNCTIONS);
+ }
+ }
+
+ @Override
+ public void getCurrentUsbFunctionsCb(long functions,
+ int status) {
+ sendMessage(MSG_GET_CURRENT_USB_FUNCTIONS, functions,
+ status == Status.FUNCTIONS_APPLIED);
+ }
+ }
+
+ private long stringToFunctionList(String config) {
+ long functionsMask = 0;
+ String[] functions = config.split(",");
+ for (int i = 0; i < functions.length; i++) {
+ switch (functions[i]) {
+ case "none":
+ functionsMask |= GadgetFunction.NONE;
+ break;
+ case "adb":
+ functionsMask |= GadgetFunction.ADB;
+ break;
+ case "mtp":
+ functionsMask |= GadgetFunction.MTP;
+ break;
+ case "ptp":
+ functionsMask |= GadgetFunction.PTP;
+ break;
+ case "midi":
+ functionsMask |= GadgetFunction.MIDI;
+ break;
+ case "accessory":
+ functionsMask |= GadgetFunction.ACCESSORY;
+ break;
+ case "rndis":
+ functionsMask |= GadgetFunction.RNDIS;
+ break;
+ }
+ }
+ return functionsMask;
+ }
+
+ private String functionListToString(Long functionList) {
+ StringJoiner functions = new StringJoiner(",");
+ if (functionList == GadgetFunction.NONE) {
+ functions.add("none");
+ return functions.toString();
+ }
+ if ((functionList & GadgetFunction.ADB) != 0) {
+ functions.add("adb");
+ }
+ if ((functionList & GadgetFunction.MTP) != 0) {
+ functions.add("mtp");
+ }
+ if ((functionList & GadgetFunction.PTP) != 0) {
+ functions.add("ptp");
+ }
+ if ((functionList & GadgetFunction.MIDI) != 0) {
+ functions.add("midi");
+ }
+ if ((functionList & GadgetFunction.ACCESSORY) != 0) {
+ functions.add("accessory");
+ }
+ if ((functionList & GadgetFunction.RNDIS) != 0) {
+ functions.add("rndis");
+ }
+ /**
+ * Remove the trailing comma.
+ */
+ return functions.toString();
+ }
+
+
+ private void setUsbConfig(String config, boolean chargingFunctions) {
+ Long functions = stringToFunctionList(config);
+ if (true) Slog.d(TAG, "setUsbConfig(" + config + ") request:" + ++mCurrentRequest);
+ /**
+ * Cancel any ongoing requests, if present.
+ */
+ removeMessages(MSG_FUNCTION_SWITCH_TIMEOUT);
+ removeMessages(MSG_SET_FUNCTIONS_TIMEOUT);
+ removeMessages(MSG_SET_CHARGING_FUNCTIONS);
+
+ synchronized (mGadgetProxyLock) {
+ if (mGadgetProxy == null) {
+ Slog.e(TAG, "setUsbConfig mGadgetProxy is null");
+ return;
+ }
+ try {
+ if ((functions & GadgetFunction.ADB) != 0) {
+ /**
+ * Start adbd if ADB function is included in the configuration.
+ */
+ SystemProperties.set(CTL_START, ADBD);
+ } else {
+ /**
+ * Stop adbd otherwise.
+ */
+ SystemProperties.set(CTL_STOP, ADBD);
+ }
+ UsbGadgetCallback usbGadgetCallback = new UsbGadgetCallback(mCurrentRequest,
+ functions, chargingFunctions);
+ mGadgetProxy.setCurrentUsbFunctions(functions, usbGadgetCallback,
+ SET_FUNCTIONS_TIMEOUT_MS - SET_FUNCTIONS_LEEWAY_MS);
+ sendMessageDelayed(MSG_SET_FUNCTIONS_TIMEOUT, chargingFunctions,
+ SET_FUNCTIONS_TIMEOUT_MS);
+ sendMessageDelayed(MSG_FUNCTION_SWITCH_TIMEOUT, chargingFunctions,
+ SET_FUNCTIONS_TIMEOUT_MS + ENUMERATION_TIME_OUT_MS);
+ if (DEBUG) Slog.d(TAG, "timeout message queued");
+ } catch (RemoteException e) {
+ Slog.e(TAG, "Remoteexception while calling setCurrentUsbFunctions", e);
+ }
+ }
+ }
+
+ @Override
+ protected void setEnabledFunctions(String functions, boolean forceRestart,
+ boolean usbDataUnlocked) {
+ if (DEBUG) {
+ Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", "
+ + "forceRestart=" + forceRestart + ", usbDataUnlocked=" + usbDataUnlocked);
+ }
+
+ if (usbDataUnlocked != mUsbDataUnlocked) {
+ mUsbDataUnlocked = usbDataUnlocked;
+ updateUsbNotification(false);
+ forceRestart = true;
+ }
+
+ trySetEnabledFunctions(functions, forceRestart);
+ }
+
+ private void trySetEnabledFunctions(String functions, boolean forceRestart) {
+ boolean chargingFunctions = false;
+
+ if (functions == null || applyAdbFunction(functions)
+ .equals(UsbManager.USB_FUNCTION_NONE)) {
+ functions = getChargingFunctions();
+ chargingFunctions = true;
+ }
+ functions = applyAdbFunction(functions);
+
+ if (!mCurrentFunctions.equals(functions)
+ || !mCurrentFunctionsApplied
+ || forceRestart) {
+ Slog.i(TAG, "Setting USB config to " + functions);
+ mCurrentFunctions = functions;
+ mCurrentFunctionsApplied = false;
+ // set the flag to false as that would be stale value
+ mCurrentUsbFunctionsRequested = false;
+
+ // Set the new USB configuration.
+ setUsbConfig(mCurrentFunctions, chargingFunctions);
+
+ if (mBootCompleted
+ && (UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_MTP)
+ || UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_PTP))) {
+ // Start up dependent services.
+ updateUsbStateBroadcastIfNeeded(true);
+ }
+ }
+ }
}
/* returns the currently attached USB accessory */
@@ -1389,7 +1947,11 @@
return mHandler.getCurrentAccessory();
}
- /* opens the currently attached USB accessory */
+ /**
+ * opens the currently attached USB accessory.
+ *
+ * @param accessory accessory to be openened.
+ */
public ParcelFileDescriptor openAccessory(UsbAccessory accessory,
UsbUserSettingsManager settings) {
UsbAccessory currentAccessory = mHandler.getCurrentAccessory();
@@ -1406,20 +1968,32 @@
return nativeOpenAccessory();
}
+ /**
+ * Checks whether the function is present in the USB configuration.
+ *
+ * @param function function to be checked.
+ */
public boolean isFunctionEnabled(String function) {
- return UsbManager.containsFunction(SystemProperties.get(USB_CONFIG_PROPERTY), function);
+ return mHandler.isFunctionEnabled(function);
}
+ /**
+ * Adds function to the current USB configuration.
+ *
+ * @param functions name of the USB function, or null to restore the default function.
+ * @param usbDataUnlocked whether user data is accessible.
+ */
public void setCurrentFunctions(String functions, boolean usbDataUnlocked) {
if (DEBUG) {
- Slog.d(TAG, "setCurrentFunctions(" + functions + ", " +
- usbDataUnlocked + ")");
+ Slog.d(TAG, "setCurrentFunctions(" + functions + ", "
+ + usbDataUnlocked + ")");
}
mHandler.sendMessage(MSG_SET_CURRENT_FUNCTIONS, functions, usbDataUnlocked);
}
/**
* Sets the functions which are set when the screen is unlocked.
+ *
* @param functions Functions to set.
*/
public void setScreenUnlockedFunctions(String functions) {
@@ -1429,101 +2003,6 @@
mHandler.sendMessage(MSG_SET_SCREEN_UNLOCKED_FUNCTIONS, functions);
}
- private void readOemUsbOverrideConfig() {
- String[] configList = mContext.getResources().getStringArray(
- com.android.internal.R.array.config_oemUsbModeOverride);
-
- if (configList != null) {
- for (String config : configList) {
- String[] items = config.split(":");
- if (items.length == 3 || items.length == 4) {
- if (mOemModeMap == null) {
- mOemModeMap = new HashMap<>();
- }
- HashMap<String, Pair<String, String>> overrideMap
- = mOemModeMap.get(items[0]);
- if (overrideMap == null) {
- overrideMap = new HashMap<>();
- mOemModeMap.put(items[0], overrideMap);
- }
-
- // Favoring the first combination if duplicate exists
- if (!overrideMap.containsKey(items[1])) {
- if (items.length == 3) {
- overrideMap.put(items[1], new Pair<>(items[2], ""));
- } else {
- overrideMap.put(items[1], new Pair<>(items[2], items[3]));
- }
- }
- }
- }
- }
- }
-
- private String applyOemOverrideFunction(String usbFunctions) {
- if ((usbFunctions == null) || (mOemModeMap == null)) {
- return usbFunctions;
- }
-
- String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
- Slog.d(TAG, "applyOemOverride usbfunctions=" + usbFunctions + " bootmode=" + bootMode);
-
- Map<String, Pair<String, String>> overridesMap =
- mOemModeMap.get(bootMode);
- // Check to ensure that the oem is not overriding in the normal
- // boot mode
- if (overridesMap != null && !(bootMode.equals(NORMAL_BOOT) ||
- bootMode.equals("unknown"))) {
- Pair<String, String> overrideFunctions =
- overridesMap.get(usbFunctions);
- if (overrideFunctions != null) {
- Slog.d(TAG, "OEM USB override: " + usbFunctions
- + " ==> " + overrideFunctions.first
- + " persist across reboot "
- + overrideFunctions.second);
- if (!overrideFunctions.second.equals("")) {
- String newFunction;
- if (mAdbEnabled) {
- newFunction = UsbManager.addFunction(overrideFunctions.second,
- UsbManager.USB_FUNCTION_ADB);
- } else {
- newFunction = overrideFunctions.second;
- }
- Slog.d(TAG, "OEM USB override persisting: " + newFunction + "in prop: "
- + UsbDeviceManager.getPersistProp(false));
- SystemProperties.set(UsbDeviceManager.getPersistProp(false),
- newFunction);
- }
- return overrideFunctions.first;
- } else if (mAdbEnabled) {
- String newFunction = UsbManager.addFunction(UsbManager.USB_FUNCTION_NONE,
- UsbManager.USB_FUNCTION_ADB);
- SystemProperties.set(UsbDeviceManager.getPersistProp(false),
- newFunction);
- } else {
- SystemProperties.set(UsbDeviceManager.getPersistProp(false),
- UsbManager.USB_FUNCTION_NONE);
- }
- }
- // return passed in functions as is.
- return usbFunctions;
- }
-
- public static String getPersistProp(boolean functions) {
- String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
- String persistProp = USB_PERSISTENT_CONFIG_PROPERTY;
- if (!(bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown"))) {
- if (functions) {
- persistProp = "persist.sys.usb." + bootMode + ".func";
- } else {
- persistProp = "persist.sys.usb." + bootMode + ".config";
- }
- }
-
- return persistProp;
- }
-
-
public void allowUsbDebugging(boolean alwaysAllow, String publicKey) {
if (mDebuggingManager != null) {
mDebuggingManager.allowUsbDebugging(alwaysAllow, publicKey);