Implement Mifare Ultralight-C detection (API). (fe6dfd50) · Commits · e / os / android_frameworks_base

core/java/android/nfc/tech/MifareUltralight.java

+10 −4

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package android.nfc.tech;

		import android.nfc.Tag;
		import android.nfc.TagLostException;
		import android.os.Bundle;
		import android.os.RemoteException;

		import java.io.IOException;
		@@ -69,6 +70,9 @@ public final class MifareUltralight extends BasicTagTechnology {
		private static final int NXP_MANUFACTURER_ID = 0x04;
		private static final int MAX_PAGE_COUNT = 256;

		/** @hide */
		public static final String EXTRA_IS_UL_C = "isulc";

		private int mType;

		/**
		@@ -101,12 +105,14 @@ public final class MifareUltralight extends BasicTagTechnology {
		mType = TYPE_UNKNOWN;

		if (a.getSak() == 0x00 && tag.getId()[0] == NXP_MANUFACTURER_ID) {
		// could be UL or UL-C
		//TODO: stack should use NXP AN1303 procedure to make a best guess
		// attempt at classifying Ultralight vs Ultralight C.
		Bundle extras = tag.getTechExtras(TagTechnology.MIFARE_ULTRALIGHT);
		if (extras.getBoolean(EXTRA_IS_UL_C)) {
		mType = TYPE_ULTRALIGHT_C;
		} else {
		mType = TYPE_ULTRALIGHT;
		}
		}
		}

		/**
		* Return the MIFARE Ultralight type of the tag.