Merge "new API for IMS call fail cause"
diff --git a/api/system-current.txt b/api/system-current.txt
index b1f3303..6d03511 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -7573,6 +7573,7 @@
   public class PhoneStateListener {
     method public void onCallAttributesChanged(@NonNull android.telephony.CallAttributes);
     method public void onCallDisconnectCauseChanged(int, int);
+    method public void onImsCallDisconnectCauseChanged(@NonNull android.telephony.ims.ImsReasonInfo);
     method public void onPreciseCallStateChanged(android.telephony.PreciseCallState);
     method public void onPreciseDataConnectionStateChanged(android.telephony.PreciseDataConnectionState);
     method public void onRadioPowerStateChanged(int);
@@ -7580,6 +7581,7 @@
     method public void onVoiceActivationStateChanged(int);
     field public static final int LISTEN_CALL_ATTRIBUTES_CHANGED = 67108864; // 0x4000000
     field public static final int LISTEN_CALL_DISCONNECT_CAUSES = 33554432; // 0x2000000
+    field public static final int LISTEN_IMS_CALL_DISCONNECT_CAUSES = 134217728; // 0x8000000
     field public static final int LISTEN_PRECISE_CALL_STATE = 2048; // 0x800
     field public static final int LISTEN_PRECISE_DATA_CONNECTION_STATE = 4096; // 0x1000
     field public static final int LISTEN_RADIO_POWER_STATE_CHANGED = 8388608; // 0x800000
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 10b126f..2f1510e 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -52,6 +52,7 @@
 import android.telephony.TelephonyManager;
 import android.telephony.data.ApnSetting;
 import android.telephony.emergency.EmergencyNumber;
+import android.telephony.ims.ImsReasonInfo;
 import android.util.LocalLog;
 import android.util.StatsLog;
 
@@ -227,6 +228,8 @@
 
     private int mCallDisconnectCause = DisconnectCause.NOT_VALID;
 
+    private List<ImsReasonInfo> mImsReasonInfo = null;
+
     private int mCallPreciseDisconnectCause = PreciseDisconnectCause.NOT_VALID;
 
     private boolean mCarrierNetworkChangeState = false;
@@ -377,6 +380,7 @@
         mCellLocation = new Bundle[numPhones];
         mCellInfo = new ArrayList<List<CellInfo>>();
         mSrvccState = new int[numPhones];
+        mImsReasonInfo = new ArrayList<ImsReasonInfo>();
         mPhysicalChannelConfigs = new ArrayList<List<PhysicalChannelConfig>>();
         mEmergencyNumberList = new HashMap<>();
         for (int i = 0; i < numPhones; i++) {
@@ -394,6 +398,7 @@
             mCallForwarding[i] =  false;
             mCellLocation[i] = new Bundle();
             mCellInfo.add(i, null);
+            mImsReasonInfo.add(i, null);
             mSrvccState[i] = TelephonyManager.SRVCC_STATE_HANDOVER_NONE;
             mPhysicalChannelConfigs.add(i, new ArrayList<PhysicalChannelConfig>());
         }
@@ -739,6 +744,13 @@
                             remove(r.binder);
                         }
                     }
+                    if ((events & PhoneStateListener.LISTEN_IMS_CALL_DISCONNECT_CAUSES) != 0) {
+                        try {
+                            r.callback.onImsCallDisconnectCauseChanged(mImsReasonInfo.get(phoneId));
+                        } catch (RemoteException ex) {
+                            remove(r.binder);
+                        }
+                    }
                     if ((events & PhoneStateListener.LISTEN_PRECISE_DATA_CONNECTION_STATE) != 0) {
                         try {
                             r.callback.onPreciseDataConnectionStateChanged(
@@ -1591,6 +1603,34 @@
         }
     }
 
+    public void notifyImsDisconnectCause(int subId, ImsReasonInfo imsReasonInfo) {
+        if (!checkNotifyPermission("notifyImsCallDisconnectCause()")) {
+            return;
+        }
+        int phoneId = SubscriptionManager.getPhoneId(subId);
+        synchronized (mRecords) {
+            if (validatePhoneId(phoneId)) {
+                mImsReasonInfo.set(phoneId, imsReasonInfo);
+                for (Record r : mRecords) {
+                    if (r.matchPhoneStateListenerEvent(
+                            PhoneStateListener.LISTEN_IMS_CALL_DISCONNECT_CAUSES)
+                            && idMatch(r.subId, subId, phoneId)) {
+                        try {
+                            if (DBG_LOC) {
+                                log("notifyImsCallDisconnectCause: mImsReasonInfo="
+                                        + imsReasonInfo + " r=" + r);
+                            }
+                            r.callback.onImsCallDisconnectCauseChanged(mImsReasonInfo.get(phoneId));
+                        } catch (RemoteException ex) {
+                            mRemoveList.add(r.binder);
+                        }
+                    }
+                }
+            }
+            handleRemoveListLocked();
+        }
+    }
+
     public void notifyPreciseDataConnectionFailed(String apnType,
             String apn, @DataFailCause.FailCause int failCause) {
         if (!checkNotifyPermission("notifyPreciseDataConnectionFailed()")) {
@@ -1627,7 +1667,7 @@
         int phoneId = SubscriptionManager.getPhoneId(subId);
         synchronized (mRecords) {
             if (validatePhoneId(phoneId)) {
-                mSrvccState[phoneId]  = state;
+                mSrvccState[phoneId] = state;
                 for (Record r : mRecords) {
                     if (r.matchPhoneStateListenerEvent(
                             PhoneStateListener.LISTEN_SRVCC_STATE_CHANGED) &&
@@ -1837,6 +1877,7 @@
                 pw.println("mDataConnectionState=" + mDataConnectionState[i]);
                 pw.println("mCellLocation=" + mCellLocation[i]);
                 pw.println("mCellInfo=" + mCellInfo.get(i));
+                pw.println("mImsCallDisconnectCause=" + mImsReasonInfo.get(i).toString());
                 pw.decreaseIndent();
             }
             pw.println("mPreciseDataConnectionState=" + mPreciseDataConnectionState);
@@ -2126,6 +2167,11 @@
                     android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, null);
         }
 
+        if ((events & PhoneStateListener.LISTEN_IMS_CALL_DISCONNECT_CAUSES) != 0) {
+            mContext.enforceCallingOrSelfPermission(
+                    android.Manifest.permission.READ_PRECISE_PHONE_STATE, null);
+        }
+
         return true;
     }
 
diff --git a/telephony/java/android/telephony/PhoneStateListener.java b/telephony/java/android/telephony/PhoneStateListener.java
index af324de..fea1b7b 100644
--- a/telephony/java/android/telephony/PhoneStateListener.java
+++ b/telephony/java/android/telephony/PhoneStateListener.java
@@ -28,6 +28,7 @@
 import android.os.HandlerExecutor;
 import android.os.Looper;
 import android.telephony.emergency.EmergencyNumber;
+import android.telephony.ims.ImsReasonInfo;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telephony.IPhoneStateListener;
@@ -347,6 +348,20 @@
     @SystemApi
     public static final int LISTEN_CALL_ATTRIBUTES_CHANGED                 = 0x04000000;
 
+    /**
+     * Listen for IMS call disconnect causes which contains
+     * {@link android.telephony.ims.ImsReasonInfo}
+     *
+     * {@more}
+     * Requires Permission: {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE
+     * READ_PRECISE_PHONE_STATE}
+     *
+     * @see #onImsCallDisconnectCauseChanged(ImsReasonInfo)
+     * @hide
+     */
+    @SystemApi
+    public static final int LISTEN_IMS_CALL_DISCONNECT_CAUSES              = 0x08000000;
+
     /*
      * Subscription used to listen to the phone state changes
      * @hide
@@ -578,6 +593,17 @@
     }
 
     /**
+     * Callback invoked when Ims call disconnect cause changes.
+     * @param imsReasonInfo {@link ImsReasonInfo} contains details on why IMS call failed.
+     *
+     * @hide
+     */
+    @SystemApi
+    public void onImsCallDisconnectCauseChanged(@NonNull ImsReasonInfo imsReasonInfo) {
+        // default implementation empty
+    }
+
+    /**
      * Callback invoked when data connection state changes with precise information.
      * @param dataConnectionState {@link PreciseDataConnectionState}
      *
@@ -981,6 +1007,16 @@
             Binder.withCleanCallingIdentity(
                     () -> mExecutor.execute(() -> psl.onPreferredDataSubIdChanged(subId)));
         }
+
+        public void onImsCallDisconnectCauseChanged(ImsReasonInfo disconnectCause) {
+            PhoneStateListener psl = mPhoneStateListenerWeakRef.get();
+            if (psl == null) return;
+
+            Binder.withCleanCallingIdentity(
+                    () -> mExecutor.execute(
+                            () -> psl.onImsCallDisconnectCauseChanged(disconnectCause)));
+
+        }
     }
 
 
diff --git a/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl b/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
index 3dbebe8..322ce45 100644
--- a/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
+++ b/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
@@ -27,6 +27,7 @@
 import android.telephony.ServiceState;
 import android.telephony.SignalStrength;
 import android.telephony.emergency.EmergencyNumber;
+import android.telephony.ims.ImsReasonInfo;
 
 oneway interface IPhoneStateListener {
     void onServiceStateChanged(in ServiceState serviceState);
@@ -58,5 +59,6 @@
     void onCallAttributesChanged(in CallAttributes callAttributes);
     void onEmergencyNumberListChanged(in Map emergencyNumberList);
     void onCallDisconnectCauseChanged(in int disconnectCause, in int preciseDisconnectCause);
+    void onImsCallDisconnectCauseChanged(in ImsReasonInfo imsReasonInfo);
 }
 
diff --git a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
index 2be1f41..e9eba32 100644
--- a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
@@ -22,6 +22,7 @@
 import android.os.Bundle;
 import android.telephony.CallQuality;
 import android.telephony.CellInfo;
+import android.telephony.ims.ImsReasonInfo;
 import android.telephony.PhoneCapability;
 import android.telephony.PhysicalChannelConfig;
 import android.telephony.ServiceState;
@@ -84,4 +85,5 @@
     void notifyRadioPowerStateChanged(in int state);
     void notifyEmergencyNumberList();
     void notifyCallQualityChanged(in CallQuality callQuality, int phoneId);
+    void notifyImsDisconnectCause(int subId, in ImsReasonInfo imsReasonInfo);
 }