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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #pragma once
     18 #undef LOG_TAG
     19 #define LOG_TAG "BrcmNfcJni"
     20 #include <jni.h>
     21 #include <pthread.h>
     22 #include <sys/queue.h>
     23 #include <semaphore.h>
     24 
     25 
     26 /* Discovery modes -- keep in sync with NFCManager.DISCOVERY_MODE_* */
     27 #define DISCOVERY_MODE_TAG_READER         0
     28 #define DISCOVERY_MODE_NFCIP1             1
     29 #define DISCOVERY_MODE_CARD_EMULATION     2
     30 #define DISCOVERY_MODE_TABLE_SIZE         3
     31 
     32 #define DISCOVERY_MODE_DISABLED           0
     33 #define DISCOVERY_MODE_ENABLED            1
     34 
     35 #define MODE_P2P_TARGET                   0
     36 #define MODE_P2P_INITIATOR                1
     37 
     38 
     39 /* Properties values */
     40 #define PROPERTY_LLCP_LTO                 0
     41 #define PROPERTY_LLCP_MIU                 1
     42 #define PROPERTY_LLCP_WKS                 2
     43 #define PROPERTY_LLCP_OPT                 3
     44 #define PROPERTY_NFC_DISCOVERY_A          4
     45 #define PROPERTY_NFC_DISCOVERY_B          5
     46 #define PROPERTY_NFC_DISCOVERY_F          6
     47 #define PROPERTY_NFC_DISCOVERY_15693      7
     48 #define PROPERTY_NFC_DISCOVERY_NCFIP      8
     49 
     50 
     51 /* Error codes */
     52 #define ERROR_BUFFER_TOO_SMALL            -12
     53 #define ERROR_INSUFFICIENT_RESOURCES      -9
     54 
     55 
     56 /* Pre-defined tag type values. These must match the values in
     57  * Ndef.java in the framework.
     58  */
     59 #define NDEF_UNKNOWN_TYPE                -1
     60 #define NDEF_TYPE1_TAG                   1
     61 #define NDEF_TYPE2_TAG                   2
     62 #define NDEF_TYPE3_TAG                   3
     63 #define NDEF_TYPE4_TAG                   4
     64 #define NDEF_MIFARE_CLASSIC_TAG          101
     65 
     66 
     67 /* Pre-defined card read/write state values. These must match the values in
     68  * Ndef.java in the framework.
     69  */
     70 #define NDEF_MODE_READ_ONLY              1
     71 #define NDEF_MODE_READ_WRITE             2
     72 #define NDEF_MODE_UNKNOWN                3
     73 
     74 
     75 /* Name strings for target types. These *must* match the values in TagTechnology.java */
     76 #define TARGET_TYPE_UNKNOWN               -1
     77 #define TARGET_TYPE_ISO14443_3A           1
     78 #define TARGET_TYPE_ISO14443_3B           2
     79 #define TARGET_TYPE_ISO14443_4            3
     80 #define TARGET_TYPE_FELICA                4
     81 #define TARGET_TYPE_ISO15693              5
     82 #define TARGET_TYPE_NDEF                  6
     83 #define TARGET_TYPE_NDEF_FORMATABLE       7
     84 #define TARGET_TYPE_MIFARE_CLASSIC        8
     85 #define TARGET_TYPE_MIFARE_UL             9
     86 #define TARGET_TYPE_KOVIO_BARCODE         10
     87 
     88 
     89 //define a few NXP error codes that NFC service expects;
     90 //see external/libnfc-nxp/src/phLibNfcStatus.h;
     91 //see external/libnfc-nxp/inc/phNfcStatus.h
     92 #define NFCSTATUS_SUCCESS (0x0000)
     93 #define NFCSTATUS_FAILED (0x00FF)
     94 
     95 struct nfc_jni_native_data
     96 {
     97    /* Thread handle */
     98    pthread_t thread;
     99    int running;
    100 
    101    /* Our VM */
    102    JavaVM *vm;
    103    int env_version;
    104 
    105    /* Reference to the NFCManager instance */
    106    jobject manager;
    107 
    108    /* Cached objects */
    109    jobject cached_NfcTag;
    110    jobject cached_P2pDevice;
    111 
    112    /* Secure Element selected */
    113    int seId;
    114 
    115    /* LLCP params */
    116    int lto;
    117    int miu;
    118    int wks;
    119    int opt;
    120 
    121    int tech_mask;
    122    int discovery_duration;
    123 
    124    /* Tag detected */
    125    jobject tag;
    126 
    127    int tHandle;
    128    int tProtocols[16];
    129    int handles[16];
    130 };
    131 
    132 
    133 class ScopedAttach
    134 {
    135 public:
    136     ScopedAttach(JavaVM* vm, JNIEnv** env) : vm_(vm)
    137     {
    138         vm_->AttachCurrentThread(env, NULL);
    139     }
    140 
    141     ~ScopedAttach()
    142     {
    143         vm_->DetachCurrentThread();
    144     }
    145 
    146 private:
    147         JavaVM* vm_;
    148 };
    149 
    150 
    151 extern "C"
    152 {
    153     jint JNI_OnLoad(JavaVM *jvm, void *reserved);
    154 }
    155 
    156 
    157 namespace android
    158 {
    159     int nfc_jni_cache_object (JNIEnv *e, const char *clsname, jobject *cached_obj);
    160     int nfc_jni_get_nfc_socket_handle (JNIEnv *e, jobject o);
    161     struct nfc_jni_native_data* nfc_jni_get_nat (JNIEnv *e, jobject o);
    162     int register_com_android_nfc_NativeNfcManager (JNIEnv *e);
    163     int register_com_android_nfc_NativeNfcTag (JNIEnv *e);
    164     int register_com_android_nfc_NativeP2pDevice (JNIEnv *e);
    165     int register_com_android_nfc_NativeLlcpConnectionlessSocket (JNIEnv *e);
    166     int register_com_android_nfc_NativeLlcpServiceSocket (JNIEnv *e);
    167     int register_com_android_nfc_NativeLlcpSocket (JNIEnv *e);
    168     int register_com_android_nfc_NativeNfcSecureElement (JNIEnv *e);
    169 } // namespace android
    170