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/******************************************************************************
*
* Copyright (C) 2012 Broadcom Corporation
*
* 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.
*
******************************************************************************/
#define LOG_TAG "NfcNciHal"
#include "spdhelper.h"
#include "_OverrideLog.h"
#include "config.h"
void SpdHelper::setPatchAsBad() { getInstance().setPatchAsBadImpl(); }
void SpdHelper::incErrorCount() { getInstance().incErrorCountImpl(); }
bool SpdHelper::isPatchBad(uint8_t* prm, uint32_t len) {
return getInstance().isPatchBadImpl(prm, len);
}
bool SpdHelper::isSpdDebug() {
bool b = getInstance().isSpdDebugImpl();
ALOGD("%s SpdDebug is %s", __func__, (b ? "TRUE" : "FALSE"));
return b;
}
void SpdHelper::incErrorCountImpl() {
if (++mErrorCount >= mMaxErrorCount) {
setPatchAsBadImpl();
}
}
void SpdHelper::setPatchAsBadImpl() { mIsPatchBad = true; }
inline const char* toHex(uint8_t b) {
static char hex[] = "0123456789ABCDEF";
static char c[3];
c[0] = hex[((b >> 4) & 0x0F)];
c[1] = hex[((b >> 0) & 0x0F)];
c[2] = '\0';
return &c[0];
}
bool SpdHelper::isPatchBadImpl(uint8_t* prm, uint32_t len) {
string strNew;
// Get the patch ID from the prm data.
for (uint32_t i = 0; i < 8 && i < len; ++i) strNew.append(toHex(*prm++));
// If it is not the same patch as before, then reset things.
if (strNew != mPatchId) {
mPatchId = strNew;
mErrorCount = 0;
mIsPatchBad = false;
}
// Otherwise the 'mIsPatchBad' will tell if its bad or not.
ALOGD("%s '%s' (%d) is %sa known bad patch file", __func__, mPatchId.c_str(),
mErrorCount, (mIsPatchBad ? "" : "not "));
return mIsPatchBad;
}
SpdHelper& SpdHelper::getInstance() {
static SpdHelper* theInstance = NULL;
if (theInstance == NULL) theInstance = new SpdHelper;
return *theInstance;
}
SpdHelper::SpdHelper() {
mErrorCount = 0;
mPatchId.erase();
if (!GetNumValue((char*)NAME_SPD_MAXRETRYCOUNT, &mMaxErrorCount,
sizeof(mMaxErrorCount)))
mMaxErrorCount = DEFAULT_SPD_MAXRETRYCOUNT;
mIsPatchBad = false;
if (!GetNumValue((char*)NAME_SPD_DEBUG, &mSpdDebug, sizeof(mSpdDebug)))
mSpdDebug = false;
}
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