1/****************************************************************************** 2 * 3 * Copyright (C) 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 19#define LOG_TAG "NfcNciHal" 20#include "OverrideLog.h" 21#include "spdhelper.h" 22#include "config.h" 23 24void SpdHelper::setPatchAsBad() 25{ 26 getInstance().setPatchAsBadImpl(); 27} 28 29void SpdHelper::incErrorCount() 30{ 31 getInstance().incErrorCountImpl(); 32} 33 34bool SpdHelper::isPatchBad(UINT8* prm, UINT32 len) 35{ 36 return getInstance().isPatchBadImpl(prm, len); 37} 38 39bool SpdHelper::isSpdDebug() 40{ 41 bool b = getInstance().isSpdDebugImpl(); 42 ALOGD("%s SpdDebug is %s", __func__, (b ? "TRUE" : "FALSE")); 43 return b; 44} 45 46void SpdHelper::incErrorCountImpl() 47{ 48 if (++mErrorCount >= mMaxErrorCount) 49 { 50 setPatchAsBadImpl(); 51 } 52} 53 54void SpdHelper::setPatchAsBadImpl() 55{ 56 mIsPatchBad = true; 57} 58 59inline const char * toHex(UINT8 b) 60{ 61 static char hex[] = "0123456789ABCDEF"; 62 static char c[3]; 63 c[0] = hex[((b >> 4) & 0x0F)]; 64 c[1] = hex[((b >> 0) & 0x0F)]; 65 c[2] = '\0'; 66 return &c[0]; 67} 68 69bool SpdHelper::isPatchBadImpl(UINT8* prm, UINT32 len) 70{ 71 string strNew; 72 73 // Get the patch ID from the prm data. 74 for (int i = 0; i < 8 && i < len; ++i) 75 strNew.append(toHex(*prm++)); 76 77 // If it is not the same patch as before, then reset things. 78 if ( strNew != mPatchId ) 79 { 80 mPatchId = strNew; 81 mErrorCount = 0; 82 mIsPatchBad = false; 83 } 84 85 // Otherwise the 'mIsPatchBad' will tell if its bad or not. 86 ALOGD("%s '%s' (%d) is %sa known bad patch file", __func__, mPatchId.c_str(), mErrorCount, (mIsPatchBad ? "" : "not ")); 87 88 return mIsPatchBad; 89} 90 91SpdHelper& SpdHelper::getInstance() 92{ 93 static SpdHelper* theInstance = NULL; 94 if (theInstance == NULL) 95 theInstance= new SpdHelper; 96 return *theInstance; 97} 98 99SpdHelper::SpdHelper() 100{ 101 mErrorCount = 0; 102 mPatchId.erase(); 103 if(!GetNumValue((char*)NAME_SPD_MAXRETRYCOUNT, &mMaxErrorCount, sizeof(mMaxErrorCount))) 104 mMaxErrorCount = DEFAULT_SPD_MAXRETRYCOUNT; 105 mIsPatchBad = false; 106 if (!GetNumValue((char*)NAME_SPD_DEBUG, &mSpdDebug, sizeof(mSpdDebug))) 107 mSpdDebug = false; 108} 109