diff options
| -rw-r--r-- | services/usb/java/com/android/server/usb/UsbDeviceManager.java | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/services/usb/java/com/android/server/usb/UsbDeviceManager.java b/services/usb/java/com/android/server/usb/UsbDeviceManager.java index df9242dc0aa1..fb2477b1754d 100644 --- a/services/usb/java/com/android/server/usb/UsbDeviceManager.java +++ b/services/usb/java/com/android/server/usb/UsbDeviceManager.java @@ -335,14 +335,12 @@ public class UsbDeviceManager { // Restore default functions. mCurrentFunctions = SystemProperties.get(USB_CONFIG_PROPERTY, UsbManager.USB_FUNCTION_NONE); - if (UsbManager.USB_FUNCTION_NONE.equals(mCurrentFunctions)) { - mCurrentFunctions = UsbManager.USB_FUNCTION_MTP; - } mCurrentFunctionsApplied = mCurrentFunctions.equals( SystemProperties.get(USB_STATE_PROPERTY)); mAdbEnabled = UsbManager.containsFunction(getDefaultFunctions(), UsbManager.USB_FUNCTION_ADB); - setEnabledFunctions(null, false); + + setEnabledFunctions(null, false, false); String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim(); updateState(state); @@ -439,17 +437,24 @@ public class UsbDeviceManager { if (DEBUG) Slog.d(TAG, "setAdbEnabled: " + enable); if (enable != mAdbEnabled) { mAdbEnabled = enable; + String oldFunctions = mCurrentFunctions; - // Due to the persist.sys.usb.config property trigger, changing adb state requires - // persisting default function - String oldFunctions = getDefaultFunctions(); - String newFunctions = applyAdbFunction(oldFunctions); - if (!oldFunctions.equals(newFunctions)) { - SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY, newFunctions); + // Persist the adb setting + String newFunction = applyAdbFunction(SystemProperties.get( + USB_PERSISTENT_CONFIG_PROPERTY, UsbManager.USB_FUNCTION_NONE)); + SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY, newFunction); + + // Changing the persistent config also changes the normal + // config. Wait for this to happen before changing again. + waitForState(newFunction); + + // Remove mtp from the config if file transfer is not enabled + if (oldFunctions.equals(UsbManager.USB_FUNCTION_MTP) && + !mUsbDataUnlocked && enable) { + oldFunctions = UsbManager.USB_FUNCTION_NONE; } - // After persisting them use the lock-down aware function set - setEnabledFunctions(mCurrentFunctions, false); + setEnabledFunctions(oldFunctions, false, mUsbDataUnlocked); updateAdbNotification(); } @@ -461,7 +466,8 @@ public class UsbDeviceManager { /** * Evaluates USB function policies and applies the change accordingly. */ - private void setEnabledFunctions(String functions, boolean forceRestart) { + private void setEnabledFunctions(String functions, boolean forceRestart, + boolean usbDataUnlocked) { if (DEBUG) Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", " + "forceRestart=" + forceRestart); @@ -501,7 +507,8 @@ public class UsbDeviceManager { } private boolean trySetEnabledFunctions(String functions, boolean forceRestart) { - if (functions == null) { + if (functions == null || applyAdbFunction(functions) + .equals(UsbManager.USB_FUNCTION_NONE)) { functions = getDefaultFunctions(); } functions = applyAdbFunction(functions); @@ -583,10 +590,6 @@ public class UsbDeviceManager { if (mBroadcastedIntent == null) { for (String key : keySet) { if (intent.getBooleanExtra(key, false)) { - // MTP function is enabled by default. - if (UsbManager.USB_FUNCTION_MTP.equals(key)) { - continue; - } return true; } } |