Add CAPABILITY_ALLOWED_NETWORK_TYPES_USED

* Made the HAL version available to radio interface capabilities
* With version 1.6 of the Radio HAL, a new function was added to enforce
the user network types preference (setAllowedNetworkTypeBitmap).
Depending on the version implemented by the modem the
setPreferredNetworkType and setAllowedNetworkTypes TelephonyManager API
methods may use this new HAL method or rely on the previous method
(setPreferredNetworkType). This new capability enum value can be used by
TelephonyManager consumers to know which HAL function is effectively
backing up their calls.

Bug: 163168917
Test: checked logs, created RadioConfigCapabilitiesResponseTest
Merged-In: Ie31d32a08b10b8c125f27832e81a3e65b6d8767a
Change-Id: I92c2d019ad594e6604503c57a52c3c2cf8660f56

3 files changed, 46 insertions, 61 deletions

diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 06d7f2495978..01e9c2fe36fe 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -10579,6 +10579,7 @@ package android.telephony {
     field public static final int CALL_WAITING_STATUS_ENABLED = 1; // 0x1
     field public static final int CALL_WAITING_STATUS_NOT_SUPPORTED = 4; // 0x4
     field public static final int CALL_WAITING_STATUS_UNKNOWN_ERROR = 3; // 0x3
+    field public static final String CAPABILITY_ALLOWED_NETWORK_TYPES_USED = "CAPABILITY_ALLOWED_NETWORK_TYPES_USED";
     field public static final String CAPABILITY_SECONDARY_LINK_BANDWIDTH_VISIBLE = "CAPABILITY_SECONDARY_LINK_BANDWIDTH_VISIBLE";
     field public static final int CARRIER_PRIVILEGE_STATUS_ERROR_LOADING_RULES = -2; // 0xfffffffe
     field public static final int CARRIER_PRIVILEGE_STATUS_HAS_ACCESS = 1; // 0x1
diff --git a/telephony/java/android/telephony/RadioInterfaceCapabilities.java b/telephony/java/android/telephony/RadioInterfaceCapabilities.java
deleted file mode 100644
index 7c7eb9fbbeb2..000000000000
--- a/telephony/java/android/telephony/RadioInterfaceCapabilities.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.telephony;
-
-import android.util.ArraySet;
-
-/**
- * Contains the set of supported capabilities that the Radio Interface supports on this device.
- *
- * @hide
- */
-public class RadioInterfaceCapabilities {
-
-    private final ArraySet<String> mSupportedCapabilities;
-
-
-    public RadioInterfaceCapabilities() {
-        mSupportedCapabilities = new ArraySet<>();
-    }
-
-    /**
-     * Marks a capability as supported
-     *
-     * @param capabilityName the name of the capability
-     */
-    public void addSupportedCapability(
-            @TelephonyManager.RadioInterfaceCapability String capabilityName) {
-        mSupportedCapabilities.add(capabilityName);
-    }
-
-    /**
-     * Whether the capability is supported
-     *
-     * @param capabilityName the name of the capability
-     */
-    public boolean isSupported(String capabilityName) {
-        return mSupportedCapabilities.contains(capabilityName);
-    }
-}
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index e8ace34793db..afa3a8e400a0 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -28,6 +28,7 @@ import android.annotation.IntDef;
 import android.annotation.LongDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.RequiresFeature;
 import android.annotation.RequiresPermission;
 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
@@ -121,12 +122,10 @@ import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
-import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.Executor;
 import java.util.function.Consumer;
@@ -8127,6 +8126,11 @@ public class TelephonyManager {
      * <p>Requires Permission:
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     * <p>
+     * If {@link android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported}
+     * ({@link TelephonyManager#CAPABILITY_ALLOWED_NETWORK_TYPES_USED}) returns true, then
+     * setAllowedNetworkTypesBitmap is used on the radio interface.  Otherwise,
+     * setPreferredNetworkTypesBitmap is used instead.
      *
      * @param subId the id of the subscription to set the preferred network type for.
      * @param networkType the preferred network type
@@ -8158,6 +8162,11 @@ public class TelephonyManager {
      * <p>Requires Permission:
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     * <p>
+     * If {@link android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported}
+     * ({@link TelephonyManager#CAPABILITY_ALLOWED_NETWORK_TYPES_USED}) returns true, then
+     * setAllowedNetworkTypesBitmap is used on the radio interface.  Otherwise,
+     * setPreferredNetworkTypesBitmap is used instead.
      *
      * @param networkTypeBitmask The bitmask of preferred network types.
      * @return true on success; false on any failure.
@@ -8183,12 +8192,20 @@ public class TelephonyManager {
      * Set the allowed network types of the device. This is for carrier or privileged apps to
      * enable/disable certain network types on the device. The user preferred network types should
      * be set through {@link #setPreferredNetworkTypeBitmask}.
+     * <p>
+     * If {@link android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported}
+     * ({@link TelephonyManager#CAPABILITY_ALLOWED_NETWORK_TYPES_USED}) returns true, then
+     * setAllowedNetworkTypesBitmap is used on the radio interface.  Otherwise,
+     * setPreferredNetworkTypesBitmap is used instead.
      *
      * @param allowedNetworkTypes The bitmask of allowed network types.
      * @return true on success; false on any failure.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(
+            enforcement = "android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported",
+            value = TelephonyManager.CAPABILITY_ALLOWED_NETWORK_TYPES_USED)
     @SystemApi
     public boolean setAllowedNetworkTypes(@NetworkTypeBitMask long allowedNetworkTypes) {
         try {
@@ -8227,12 +8244,12 @@ public class TelephonyManager {
      * {@link #ALLOWED_NETWORK_TYPES_REASON_POWER}
      * </ol>
      * This API will result in allowing an intersection of allowed network types for all reasons,
-     * including the configuration done through {@link setAllowedNetworkTypes}.
-     * While this API and {@link setAllowedNetworkTypes} is controlling allowed network types
-     * on device, user preference will still be set through {@link #setPreferredNetworkTypeBitmask}.
-     * Thus resultant network type configured on modem will be an intersection of the network types
-     * from setAllowedNetworkTypesForReason, {@link setAllowedNetworkTypes}
-     * and {@link #setPreferredNetworkTypeBitmask}.
+     * including the configuration done through other reasons.
+     * <p>
+     * If {@link android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported}
+     * ({@link TelephonyManager#CAPABILITY_ALLOWED_NETWORK_TYPES_USED}) returns true, then
+     * setAllowedNetworkTypesBitmap is used on the radio interface.  Otherwise,
+     * setPreferredNetworkTypesBitmap is used instead.
      *
      * @param reason the reason the allowed network type change is taking place
      * @param allowedNetworkTypes The bitmask of allowed network types.
@@ -8241,6 +8258,9 @@ public class TelephonyManager {
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(
+            enforcement = "android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported",
+            value = TelephonyManager.CAPABILITY_ALLOWED_NETWORK_TYPES_USED)
     public void setAllowedNetworkTypesForReason(@AllowedNetworkTypesReason int reason,
             @NetworkTypeBitMask long allowedNetworkTypes) {
         if (reason != ALLOWED_NETWORK_TYPES_REASON_POWER) {
@@ -8278,6 +8298,9 @@ public class TelephonyManager {
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(
+            enforcement = "android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported",
+            value = TelephonyManager.CAPABILITY_ALLOWED_NETWORK_TYPES_USED)
     public @NetworkTypeBitMask long getAllowedNetworkTypesForReason(
             @AllowedNetworkTypesReason int reason) {
         if (reason != ALLOWED_NETWORK_TYPES_REASON_POWER) {
@@ -14356,10 +14379,24 @@ public class TelephonyManager {
     public static final String CAPABILITY_SECONDARY_LINK_BANDWIDTH_VISIBLE =
             "CAPABILITY_SECONDARY_LINK_BANDWIDTH_VISIBLE";
 
+    /**
+     * Indicates whether {@link #setPreferredNetworkType}, {@link
+     * #setPreferredNetworkTypeBitmask}, {@link #setAllowedNetworkTypes} and
+     * {@link #setAllowedNetworkTypesForReason} rely on
+     * setAllowedNetworkTypesBitmap instead of setPreferredNetworkTypesBitmap on the radio
+     * interface.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final String CAPABILITY_ALLOWED_NETWORK_TYPES_USED =
+            "CAPABILITY_ALLOWED_NETWORK_TYPES_USED";
+
     /** @hide */
     @Retention(RetentionPolicy.SOURCE)
     @StringDef(prefix = "CAPABILITY_", value = {
             CAPABILITY_SECONDARY_LINK_BANDWIDTH_VISIBLE,
+            CAPABILITY_ALLOWED_NETWORK_TYPES_USED,
     })
     public @interface RadioInterfaceCapability {}