From 83e7b920deec8d163c3ddd9c56343ce8bcea0a9e Mon Sep 17 00:00:00 2001
From: Pengquan Meng <mpq@google.com>
Date: Tue, 22 Jan 2019 20:06:03 -0800
Subject: Add getSlotsMapping to TelephonyManager

Bug: 123101769
Test: build
Change-Id: I416d741947b1a15e66ebf71b8104c4b2ec95e310
---
 api/system-current.txt                             |  1 +
 .../java/android/telephony/TelephonyManager.java   | 30 ++++++++++++++++++++++
 .../com/android/internal/telephony/ITelephony.aidl |  6 +++++
 3 files changed, 37 insertions(+)

diff --git a/api/system-current.txt b/api/system-current.txt
index d061d01ac9b4..5264d68b1f35 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -7931,6 +7931,7 @@ package android.telephony {
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean getEmergencyCallbackMode();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getIsimDomain();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getIsimIst();
+    method @NonNull @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public java.util.List<android.util.Pair<java.lang.Integer,java.lang.Integer>> getLogicalToPhysicalSlotMapping();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public long getPreferredNetworkTypeBitmap();
     method @RequiresPermission(anyOf={android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, android.Manifest.permission.READ_PHONE_STATE}) public int getRadioPowerState();
     method public int getSimApplicationState();
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 0e63b2b4db4d..a1fb09017bcd 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -72,6 +72,7 @@ import android.telephony.ims.feature.MmTelFeature;
 import android.telephony.ims.stub.ImsRegistrationImplBase;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.Pair;
 
 import com.android.ims.internal.IImsServiceFeatureCallback;
 import com.android.internal.annotations.VisibleForTesting;
@@ -3264,6 +3265,35 @@ public class TelephonyManager {
         }
     }
 
+    /**
+     * Get the mapping from logical slots to physical slots. The mapping represent by a pair list.
+     * The key of the piar is the logical slot id and the value of the pair is the physical
+     * slots id mapped to this logical slot id.
+     *
+     * @return an pair list indicates the mapping from logical slots to physical slots. The size of
+     * the list should be {@link #getPhoneCount()} if success, otherwise return an empty list.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @NonNull
+    public List<Pair<Integer, Integer>> getLogicalToPhysicalSlotMapping() {
+        List<Pair<Integer, Integer>> slotMapping = new ArrayList<>();
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony != null) {
+                int[] slotMappingArray = telephony.getSlotsMapping();
+                for (int i = 0; i < slotMappingArray.length; i++) {
+                    slotMapping.add(new Pair(i, slotMappingArray[i]));
+                }
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "getSlotsMapping RemoteException", e);
+        }
+        return slotMapping;
+    }
+
     //
     //
     // Subscriber Info
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 62f9999bc924..762d8860afcd 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -1848,8 +1848,14 @@ interface ITelephony {
      * @hide
      */
     int getNumOfActiveSims();
+
     /**
      * Get if reboot is required upon altering modems configurations
      */
     boolean isRebootRequiredForModemConfigChange();
+
+    /**
+     * Get the mapping from logical slots to physical slots.
+     */
+    int[] getSlotsMapping();
 }
-- 
cgit v1.2.3-59-g8ed1b