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+/*
+ * Copyright (C) 2012 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.
+ */
+#include "NfcJniUtil.h"
+#include <errno.h>
+
+
+/*******************************************************************************
+**
+** Function: JNI_OnLoad
+**
+** Description: Register all JNI functions with Java Virtual Machine.
+** jvm: Java Virtual Machine.
+** reserved: Not used.
+**
+** Returns: JNI version.
+**
+*******************************************************************************/
+jint JNI_OnLoad (JavaVM *jvm, void *reserved)
+{
+ ALOGD ("%s: enter", __FUNCTION__);
+ JNIEnv *e = NULL;
+
+ // Check JNI version
+ if (jvm->GetEnv ((void **) &e, JNI_VERSION_1_6))
+ return JNI_ERR;
+
+ if (android::register_com_android_nfc_NativeNfcManager (e) == -1)
+ return JNI_ERR;
+ if (android::register_com_android_nfc_NativeLlcpServiceSocket (e) == -1)
+ return JNI_ERR;
+ if (android::register_com_android_nfc_NativeLlcpSocket (e) == -1)
+ return JNI_ERR;
+ if (android::register_com_android_nfc_NativeNfcTag (e) == -1)
+ return JNI_ERR;
+ if (android::register_com_android_nfc_NativeLlcpConnectionlessSocket (e) == -1)
+ return JNI_ERR;
+ if (android::register_com_android_nfc_NativeP2pDevice (e) == -1)
+ return JNI_ERR;
+ if (android::register_com_android_nfc_NativeNfcSecureElement (e) == -1)
+ return JNI_ERR;
+ ALOGD ("%s: exit", __FUNCTION__);
+ return JNI_VERSION_1_6;
+}
+
+
+namespace android
+{
+
+
+/*******************************************************************************
+**
+** Function: nfc_jni_cache_object
+**
+** Description:
+**
+** Returns: Status code.
+**
+*******************************************************************************/
+int nfc_jni_cache_object (JNIEnv *e, const char *className, jobject *cachedObj)
+{
+ jclass cls = NULL;
+ jobject obj = NULL;
+ jmethodID ctor = 0;
+
+ cls = e->FindClass (className);
+ if(cls == NULL)
+ {
+ ALOGE ("%s: find class error", __FUNCTION__);
+ return -1;
+ }
+
+ ctor = e->GetMethodID (cls, "<init>", "()V");
+ obj = e->NewObject (cls, ctor);
+ if (obj == NULL)
+ {
+ ALOGE ("%s: create object error", __FUNCTION__);
+ return -1;
+ }
+
+ *cachedObj = e->NewGlobalRef (obj);
+ if (*cachedObj == NULL)
+ {
+ e->DeleteLocalRef (obj);
+ ALOGE ("%s: global ref error", __FUNCTION__);
+ return -1;
+ }
+ e->DeleteLocalRef (obj);
+ return 0;
+}
+
+
+/*******************************************************************************
+**
+** Function: nfc_jni_get_nfc_socket_handle
+**
+** Description: Get the value of "mHandle" member variable.
+** e: JVM environment.
+** o: Java object.
+**
+** Returns: Value of mHandle.
+**
+*******************************************************************************/
+int nfc_jni_get_nfc_socket_handle (JNIEnv *e, jobject o)
+{
+ jclass c = NULL;
+ jfieldID f = 0;
+
+ c = e->GetObjectClass (o);
+ f = e->GetFieldID (c, "mHandle", "I");
+ return e->GetIntField (o, f);
+}
+
+
+/*******************************************************************************
+**
+** Function: nfc_jni_get_nat
+**
+** Description: Get the value of "mNative" member variable.
+** e: JVM environment.
+** o: Java object.
+**
+** Returns: Pointer to the value of mNative.
+**
+*******************************************************************************/
+struct nfc_jni_native_data* nfc_jni_get_nat(JNIEnv *e, jobject o)
+{
+ jclass c = NULL;
+ jfieldID f = 0;
+
+ /* Retrieve native structure address */
+ c = e->GetObjectClass(o);
+ f = e->GetFieldID(c, "mNative", "I");
+ return (struct nfc_jni_native_data*)e->GetIntField(o, f);
+}
+
+
+} // namespace android