1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* 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
|
