refactor radioPowerstate

1. new System API for getRadioPowerState with permision check
2. new System API for onRadioPowerStateChanged in PhoneStateListener
3. replace radioState enum in CommandsInterface to telephonyMgr defined
int.

Bug: 117349311
Test: telephony unit test
Change-Id: I502568280fbf9213ca6bf1f7fb204d0d4ce86580
Merged-in: I502568280fbf9213ca6bf1f7fb204d0d4ce86580

7 files changed, 137 insertions, 0 deletions

diff --git a/api/system-current.txt b/api/system-current.txt
index fd5aa7b59741..8c7ca76b1907 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5137,6 +5137,11 @@ package android.telephony {
     field public static final int RESULT_SUCCESS = 0; // 0x0
   }
 
+  public class PhoneStateListener {
+    method public void onRadioPowerStateChanged(int);
+    field public static final int LISTEN_RADIO_POWER_STATE_CHANGED = 4194304; // 0x400000
+  }
+
   public class ServiceState implements android.os.Parcelable {
     method public android.telephony.NetworkRegistrationState getNetworkRegistrationState(int, int);
     method public java.util.List<android.telephony.NetworkRegistrationState> getNetworkRegistrationStates();
@@ -5262,6 +5267,7 @@ package android.telephony {
     method public boolean getEmergencyCallbackMode();
     method public java.lang.String getIsimDomain();
     method public int getPreferredNetworkType(int);
+    method public int getRadioPowerState();
     method public int getSimApplicationState();
     method public int getSimCardState();
     method public java.util.List<android.telephony.TelephonyHistogram> getTelephonyHistograms();
@@ -5325,6 +5331,9 @@ package android.telephony {
     field public static final int NETWORK_MODE_TDSCDMA_WCDMA = 14; // 0xe
     field public static final int NETWORK_MODE_WCDMA_ONLY = 2; // 0x2
     field public static final int NETWORK_MODE_WCDMA_PREF = 0; // 0x0
+    field public static final int RADIO_POWER_OFF = 0; // 0x0
+    field public static final int RADIO_POWER_ON = 1; // 0x1
+    field public static final int RADIO_POWER_UNAVAILABLE = 2; // 0x2
     field public static final int SIM_ACTIVATION_STATE_ACTIVATED = 2; // 0x2
     field public static final int SIM_ACTIVATION_STATE_ACTIVATING = 1; // 0x1
     field public static final int SIM_ACTIVATION_STATE_DEACTIVATED = 3; // 0x3
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 0f9fe83ba6a5..09277474fd9c 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -211,6 +211,9 @@ class TelephonyRegistry extends ITelephonyRegistry.Stub {
 
     private PhoneCapability mPhoneCapability = null;
 
+    @TelephonyManager.RadioPowerState
+    private int mRadioPowerState = TelephonyManager.RADIO_POWER_UNAVAILABLE;
+
     private final LocalLog mLocalLog = new LocalLog(100);
 
     private PreciseDataConnectionState mPreciseDataConnectionState =
@@ -749,6 +752,13 @@ class TelephonyRegistry extends ITelephonyRegistry.Stub {
                             remove(r.binder);
                         }
                     }
+                    if ((events & PhoneStateListener.LISTEN_RADIO_POWER_STATE_CHANGED) != 0) {
+                        try {
+                            r.callback.onRadioPowerStateChanged(mRadioPowerState);
+                        } catch (RemoteException ex) {
+                            remove(r.binder);
+                        }
+                    }
                 }
             }
         } else {
@@ -1570,6 +1580,32 @@ class TelephonyRegistry extends ITelephonyRegistry.Stub {
         }
     }
 
+    public void notifyRadioPowerStateChanged(@TelephonyManager.RadioPowerState int state) {
+        if (!checkNotifyPermission("notifyRadioPowerStateChanged()")) {
+            return;
+        }
+
+        if (VDBG) {
+            log("notifyRadioPowerStateChanged: state= " + state);
+        }
+
+        synchronized (mRecords) {
+            mRadioPowerState = state;
+
+            for (Record r : mRecords) {
+                if (r.matchPhoneStateListenerEvent(
+                        PhoneStateListener.LISTEN_RADIO_POWER_STATE_CHANGED)) {
+                    try {
+                        r.callback.onRadioPowerStateChanged(state);
+                    } catch (RemoteException ex) {
+                        mRemoveList.add(r.binder);
+                    }
+                }
+            }
+            handleRemoveListLocked();
+        }
+    }
+
 
     @Override
     public void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
@@ -1607,6 +1643,7 @@ class TelephonyRegistry extends ITelephonyRegistry.Stub {
             pw.println("mBackgroundCallState=" + mBackgroundCallState);
             pw.println("mVoLteServiceState=" + mVoLteServiceState);
             pw.println("mPhoneCapability=" + mPhoneCapability);
+            pw.println("mRadioPowerState=" + mRadioPowerState);
 
             pw.decreaseIndent();
 
diff --git a/telephony/java/android/telephony/PhoneStateListener.java b/telephony/java/android/telephony/PhoneStateListener.java
index bd6a59d7492c..c06832e931b8 100644
--- a/telephony/java/android/telephony/PhoneStateListener.java
+++ b/telephony/java/android/telephony/PhoneStateListener.java
@@ -17,6 +17,7 @@
 package android.telephony;
 
 import android.annotation.NonNull;
+import android.annotation.SystemApi;
 import android.annotation.UnsupportedAppUsage;
 import android.os.Bundle;
 import android.os.Handler;
@@ -280,6 +281,15 @@ public class PhoneStateListener {
      */
     public static final int LISTEN_PHONE_CAPABILITY_CHANGE                 = 0x00200000;
 
+    /**
+     *  Listen for changes to the radio power state.
+     *
+     *  @see #onRadioPowerStateChanged
+     *  @hide
+     */
+    @SystemApi
+    public static final int LISTEN_RADIO_POWER_STATE_CHANGED               = 0x00400000;
+
     /*
      * Subscription used to listen to the phone state changes
      * @hide
@@ -406,6 +416,9 @@ public class PhoneStateListener {
                         PhoneStateListener.this.onPhoneCapabilityChanged(
                                 (PhoneCapability) msg.obj);
                         break;
+                    case LISTEN_RADIO_POWER_STATE_CHANGED:
+                        PhoneStateListener.this.onRadioPowerStateChanged((int) msg.obj);
+                        break;
                 }
             }
         };
@@ -646,6 +659,18 @@ public class PhoneStateListener {
     }
 
     /**
+     * Callback invoked when modem radio power state changes. Requires
+     * the READ_PRIVILEGED_PHONE_STATE permission.
+     * @param state the modem radio power state
+     * @hide
+     */
+    @SystemApi
+    public void onRadioPowerStateChanged(@TelephonyManager.RadioPowerState int state) {
+        // default implementation empty
+    }
+
+
+    /**
      * Callback invoked when telephony has received notice from a carrier
      * app that a network action that could result in connectivity loss
      * has been requested by an app using
@@ -776,6 +801,10 @@ public class PhoneStateListener {
         public void onPhoneCapabilityChanged(PhoneCapability capability) {
             send(LISTEN_PHONE_CAPABILITY_CHANGE, 0, 0, capability);
         }
+
+        public void onRadioPowerStateChanged(@TelephonyManager.RadioPowerState int state) {
+            send(LISTEN_RADIO_POWER_STATE_CHANGED, 0, 0, state);
+        }
     }
 
     @UnsupportedAppUsage
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index f83ea68af1c5..fe75e4da8ea5 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -6843,6 +6843,60 @@ public class TelephonyManager {
     }
 
     /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = {"RADIO_POWER_"},
+            value = {RADIO_POWER_OFF,
+                    RADIO_POWER_ON,
+                    RADIO_POWER_UNAVAILABLE,
+            })
+    public @interface RadioPowerState {}
+
+    /**
+     * Radio explicitly powered off (e.g, airplane mode).
+     * @hide
+     */
+    @SystemApi
+    public static final int RADIO_POWER_OFF = 0;
+
+    /**
+     * Radio power is on.
+     * @hide
+     */
+    @SystemApi
+    public static final int RADIO_POWER_ON = 1;
+
+    /**
+     * Radio power unavailable (eg, modem resetting or not booted).
+     * @hide
+     */
+    @SystemApi
+    public static final int RADIO_POWER_UNAVAILABLE = 2;
+
+    /**
+     * @return current modem radio state.
+     *
+     * <p>Requires permission: {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE} or
+     * {@link android.Manifest.permission#READ_PHONE_STATE} or that the calling
+     * app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(anyOf = {android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PHONE_STATE})
+    public @RadioPowerState int getRadioPowerState() {
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony != null) {
+                return telephony.getRadioPowerState(getSlotIndex(), mContext.getOpPackageName());
+            }
+        } catch (RemoteException ex) {
+            // This could happen if binder process crashes.
+        }
+        return RADIO_POWER_UNAVAILABLE;
+    }
+
+    /** @hide */
     @SystemApi
     @SuppressLint("Doclava125")
     public void updateServiceLocation() {
diff --git a/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl b/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
index 1ebb6976b45e..86818593a32b 100644
--- a/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
+++ b/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
@@ -52,5 +52,6 @@ oneway interface IPhoneStateListener {
     void onCarrierNetworkChange(in boolean active);
     void onUserMobileDataStateChanged(in boolean enabled);
     void onPhoneCapabilityChanged(in PhoneCapability capability);
+    void onRadioPowerStateChanged(in int state);
 }
 
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 627dfaa5d36e..254ba434d91f 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -1477,4 +1477,10 @@ interface ITelephony {
      * Return the network selection mode on the subscription with id {@code subId}.
      */
      int getNetworkSelectionMode(int subId);
+
+     /**
+      * Return the modem radio power state for slot index.
+      *
+      */
+     int getRadioPowerState(int slotIdex, String callingPackage);
 }
diff --git a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
index 43d56b39e0c4..2f40fcc844f3 100644
--- a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
@@ -79,4 +79,5 @@ interface ITelephonyRegistry {
     void notifyCarrierNetworkChange(in boolean active);
     void notifyUserMobileDataStateChangedForPhoneId(in int phoneId, in int subId, in boolean state);
     void notifyPhoneCapabilityChanged(in PhoneCapability capability);
+    void notifyRadioPowerStateChanged(in int state);
 }