Merge "nfc(api): Create privileged setReaderMode API" into main am: d365063d

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2796602



Change-Id: I19cbdc698e97f12c09656039300c608f4c99228d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

core/api/system-current.txt

@@ -10251,6 +10251,7 @@ package android.nfc {
     method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public void registerControllerAlwaysOnListener(@NonNull java.util.concurrent.Executor, @NonNull android.nfc.NfcAdapter.ControllerAlwaysOnListener);
     method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean removeNfcUnlockHandler(android.nfc.NfcAdapter.NfcUnlockHandler);
     method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public boolean setControllerAlwaysOn(boolean);
+    method @FlaggedApi("android.nfc.enable_nfc_mainline") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void setReaderMode(boolean);
     method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public int setTagIntentAppPreferenceForUser(int, @NonNull String, boolean);
     method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public void unregisterControllerAlwaysOnListener(@NonNull android.nfc.NfcAdapter.ControllerAlwaysOnListener);
     field public static final int TAG_INTENT_APP_PREF_RESULT_PACKAGE_NOT_FOUND = -1; // 0xffffffff

core/java/Android.bp

@@ -14,6 +14,15 @@ aidl_library {
     hdrs: ["android/hardware/HardwareBuffer.aidl"],
 }
 
+// TODO (b/303286040): Remove this once |ENABLE_NFC_MAINLINE_FLAG| is rolled out
+filegroup {
+    name: "framework-core-nfc-infcadapter-sources",
+    srcs: [
+        "android/nfc/INfcAdapter.aidl",
+    ],
+    visibility: ["//frameworks/base/services/core"],
+}
+
 filegroup {
     name: "framework-core-sources",
     srcs: [

core/java/android/nfc/NfcAdapter.java

@@ -24,6 +24,7 @@ import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
+import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.annotation.UserIdInt;
 import android.app.Activity;
@@ -37,6 +38,7 @@ import android.nfc.tech.MifareClassic;
 import android.nfc.tech.Ndef;
 import android.nfc.tech.NfcA;
 import android.nfc.tech.NfcF;
+import android.os.Binder;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
@@ -1594,6 +1596,40 @@ public final class NfcAdapter {
         mNfcActivityManager.disableReaderMode(activity);
     }
 
+    // Flags arguments to NFC adapter to enable/disable NFC
+    private static final int DISABLE_POLLING_FLAGS = 0x1000;
+    private static final int ENABLE_POLLING_FLAGS = 0x0000;
+
+    /**
+     * Privileged API to enable disable reader polling.
+     * Note: Use with caution! The app is responsible for ensuring that the polling state is
+     * returned to normal.
+     *
+     * @see #enableReaderMode(Activity, ReaderCallback, int, Bundle)  for more detailed
+     * documentation.
+     *
+     * @param enablePolling whether to enable or disable polling.
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS)
+    @FlaggedApi(Flags.FLAG_ENABLE_NFC_MAINLINE)
+    @SuppressLint("VisiblySynchronized")
+    public void setReaderMode(boolean enablePolling) {
+        synchronized (NfcAdapter.class) {
+            if (!sHasNfcFeature) {
+                throw new UnsupportedOperationException();
+            }
+        }
+        Binder token = new Binder();
+        int flags = enablePolling ? ENABLE_POLLING_FLAGS : DISABLE_POLLING_FLAGS;
+        try {
+            NfcAdapter.sService.setReaderMode(token, null, flags, null);
+        } catch (RemoteException e) {
+            attemptDeadServiceRecovery(e);
+        }
+    }
+
     /**
      * Manually invoke Android Beam to share data.
      *

services/core/Android.bp

@@ -118,6 +118,7 @@ java_library_static {
         ":display-device-config",
         ":display-layout-config",
         ":device-state-config",
+        ":framework-core-nfc-infcadapter-sources",
         "java/com/android/server/EventLogTags.logtags",
         "java/com/android/server/am/EventLogTags.logtags",
         "java/com/android/server/wm/EventLogTags.logtags",
@@ -178,6 +179,7 @@ java_library_static {
         "android.hardware.power.stats-V2-java",
         "android.hardware.power-V4-java",
         "android.hidl.manager-V1.2-java",
+        "android.nfc.flags-aconfig-java",
         "cbor-java",
         "icu4j_calendar_astronomer",
         "android.security.aaid_aidl-java",

services/core/java/com/android/server/camera/CameraServiceProxy.java

@@ -53,6 +53,8 @@ import android.hardware.usb.UsbDevice;
 import android.hardware.usb.UsbManager;
 import android.media.AudioManager;
 import android.nfc.INfcAdapter;
+import android.nfc.NfcAdapter;
+import android.nfc.NfcManager;
 import android.os.Binder;
 import android.os.Handler;
 import android.os.HandlerExecutor;
@@ -162,10 +164,6 @@ public class CameraServiceProxy extends SystemService
      * SCALER_ROTATE_AND_CROP_NONE  -> Always return CaptureRequest.SCALER_ROTATE_AND_CROP_NONE
      */
 
-    // Flags arguments to NFC adapter to enable/disable NFC
-    public static final int DISABLE_POLLING_FLAGS = 0x1000;
-    public static final int ENABLE_POLLING_FLAGS = 0x0000;
-
     // Handler message codes
     private static final int MSG_SWITCH_USER = 1;
     private static final int MSG_NOTIFY_DEVICE_STATE = 2;
@@ -215,7 +213,6 @@ public class CameraServiceProxy extends SystemService
     private final List<CameraUsageEvent> mCameraUsageHistory = new ArrayList<>();
 
     private static final String NFC_NOTIFICATION_PROP = "ro.camera.notify_nfc";
-    private static final String NFC_SERVICE_BINDER_NAME = "nfc";
     private static final IBinder nfcInterfaceToken = new Binder();
 
     private final boolean mNotifyNfc;
@@ -1255,8 +1252,13 @@ public class CameraServiceProxy extends SystemService
         }
     }
 
-    private void notifyNfcService(boolean enablePolling) {
-
+    // TODO(b/303286040): Remove the raw INfcAdapter usage once |ENABLE_NFC_MAINLINE_FLAG| is
+    // rolled out.
+    private static final String NFC_SERVICE_BINDER_NAME = "nfc";
+    // Flags arguments to NFC adapter to enable/disable NFC
+    public static final int DISABLE_POLLING_FLAGS = 0x1000;
+    public static final int ENABLE_POLLING_FLAGS = 0x0000;
+    private void setNfcReaderModeUsingINfcAdapter(boolean enablePolling) {
         IBinder nfcServiceBinder = getBinderService(NFC_SERVICE_BINDER_NAME);
         if (nfcServiceBinder == null) {
             Slog.w(TAG, "Could not connect to NFC service to notify it of camera state");
@@ -1272,6 +1274,25 @@ public class CameraServiceProxy extends SystemService
         }
     }
 
+    private void notifyNfcService(boolean enablePolling) {
+        if (android.nfc.Flags.enableNfcMainline()) {
+            NfcManager nfcManager = mContext.getSystemService(NfcManager.class);
+            if (nfcManager == null) {
+                Slog.w(TAG, "Could not connect to NFC service to notify it of camera state");
+                return;
+            }
+            NfcAdapter nfcAdapter = nfcManager.getDefaultAdapter();
+            if (nfcAdapter == null) {
+                Slog.w(TAG, "Could not connect to NFC service to notify it of camera state");
+                return;
+            }
+            if (DEBUG) Slog.v(TAG, "Setting NFC reader mode. enablePolling: " + enablePolling);
+            nfcAdapter.setReaderMode(enablePolling);
+        } else {
+            setNfcReaderModeUsingINfcAdapter(enablePolling);
+        }
+    }
+
     private static int[] toArray(Collection<Integer> c) {
         int len = c.size();
         int[] ret = new int[len];