Fixed handling of usb state during adb changes.
When changing state to adb from mtp (charging), we want to disable
the old mtp function. Similarly when change to away from adb to
charging, enable the mtp function.
Also the mtp function should never be persisted.
Bug: 31818377
Bug: 31814300
Test: Manually verify that the correct usb configuration is displayed.
Test: Manually verify that logcat is not kicked during boot.
Change-Id: Idcb7f53be39ea38712d5de45b323d8daeb552129
(cherry-picked from commit 58018d01a3c384b954275d15bee7f9c52a1c7c0a)
diff --git a/services/usb/java/com/android/server/usb/UsbDeviceManager.java b/services/usb/java/com/android/server/usb/UsbDeviceManager.java
index df9242d..fb2477b 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 @@
// 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 @@
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 @@
/**
* 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 @@
}
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 @@
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;
}
}