Android Hardware Abstraction Layer
NfcAdaptation.h
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1 /******************************************************************************
2  *
3  * Copyright (C) 2011-2012 Broadcom Corporation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  ******************************************************************************/
18 #pragma once
19 #include <pthread.h>
20 #ifndef UINT32
21 typedef unsigned long UINT32;
22 #endif
23 #include "nfc_target.h"
24 #include "nfc_hal_api.h"
25 #include <hardware/nfc.h>
26 
27 
29 {
30 public:
31  ThreadMutex();
32  virtual ~ThreadMutex();
33  void lock();
34  void unlock();
35  operator pthread_mutex_t* () {return &mMutex;}
36 private:
37  pthread_mutex_t mMutex;
38 };
39 
40 class ThreadCondVar : public ThreadMutex
41 {
42 public:
43  ThreadCondVar();
44  virtual ~ThreadCondVar();
45  void signal();
46  void wait();
47  operator pthread_cond_t* () {return &mCondVar;}
48  operator pthread_mutex_t* () {return ThreadMutex::operator pthread_mutex_t*();}
49 private:
50  pthread_cond_t mCondVar;
51 };
52 
54 {
55 public:
57  virtual ~AutoThreadMutex();
58  operator ThreadMutex& () {return mm;}
59  operator pthread_mutex_t* () {return (pthread_mutex_t*)mm;}
60 private:
61  ThreadMutex &mm;
62 };
63 
65 {
66 public:
67  virtual ~NfcAdaptation();
68  void Initialize();
69  void Finalize();
70  static NfcAdaptation& GetInstance();
71  tHAL_NFC_ENTRY* GetHalEntryFuncs ();
72  void DownloadFirmware ();
73 
74 private:
75  NfcAdaptation();
76  void signal();
77  static NfcAdaptation* mpInstance;
78  static ThreadMutex sLock;
79  ThreadCondVar mCondVar;
80  pthread_t mThreadId;
81  tHAL_NFC_ENTRY mHalEntryFuncs; // function pointers for HAL entry points
82  static nfc_nci_device_t* mHalDeviceContext;
83  static tHAL_NFC_CBACK* mHalCallback;
84  static tHAL_NFC_DATA_CBACK* mHalDataCallback;
85  static ThreadCondVar mHalOpenCompletedEvent;
86  static ThreadCondVar mHalCloseCompletedEvent;
87 
88  static UINT32 NFCA_TASK (UINT32 arg);
89  static UINT32 Thread (UINT32 arg);
90  void InitializeHalDeviceContext ();
91  static void HalDeviceContextCallback (nfc_event_t event, nfc_status_t event_status);
92  static void HalDeviceContextDataCallback (uint16_t data_len, uint8_t* p_data);
93 
94  static void HalInitialize ();
95  static void HalTerminate ();
96  static void HalOpen (tHAL_NFC_CBACK* p_hal_cback, tHAL_NFC_DATA_CBACK* p_data_cback);
97  static void HalClose ();
98  static void HalCoreInitialized (UINT8* p_core_init_rsp_params);
99  static void HalWrite (UINT16 data_len, UINT8* p_data);
100  static BOOLEAN HalPrediscover ();
101  static void HalControlGranted ();
102  static void HalPowerCycle ();
103  static UINT8 HalGetMaxNfcee ();
104  static void HalDownloadFirmwareCallback (nfc_event_t event, nfc_status_t event_status);
105  static void HalDownloadFirmwareDataCallback (uint16_t data_len, uint8_t* p_data);
106 };
107