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/*
* Copyright (C) 2010 NXP Semiconductors
*
* 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.
*/
/**
* \file phOsalNfc.c
* \brief OSAL Implementation for linux
*
* Project: Trusted NFC Linux Light
*
* $Date: 03 aug 2009
* $Author: Jérémie Corbier
* $Revision: 1.0
*
*/
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <phOsalNfc.h>
#ifdef ANDROID
#define LOG_TAG "NFC-HCI"
#include <utils/Log.h>
phOsalNfc_Exception_t phOsalNfc_Exception;
#endif
#ifdef DEBUG
#define MAX_PRINT_BUFSIZE (0x450U)
char phOsalNfc_DbgTraceBuffer[MAX_PRINT_BUFSIZE];
#endif
void phLibNfc_Mgt_Recovery();
/*!
* \brief Allocates memory.
* This function attempts to allocate \a size bytes on the heap and
* returns a pointer to the allocated block.
*
* \param size size of the memory block to be allocated on the heap.
*
* \return pointer to allocated memory block or NULL in case of error.
*/
void *phOsalNfc_GetMemory(uint32_t size)
{
void *pMem = (void *)malloc(size);
return pMem;
}
/*!
* \brief Frees allocated memory block.
* This function deallocates memory region pointed to by \a pMem.
*
* \param pMem pointer to memory block to be freed.
*/
void phOsalNfc_FreeMemory(void *pMem)
{
if(NULL != pMem)
free(pMem);
}
void phOsalNfc_DbgString(const char *pString)
{
#ifdef DEBUG
if(pString != NULL)
#ifndef ANDROID
printf(pString);
#else
ALOGD("%s", pString);
#endif
#endif
}
void phOsalNfc_DbgTrace(uint8_t data[], uint32_t size)
{
#ifdef DEBUG
uint32_t i;
#ifdef ANDROID
char buf[10];
#endif
if(size == 0)
return;
#ifndef ANDROID
for(i = 0; i < size; i++)
{
if((i % 10) == 0)
printf("\n\t\t\t");
printf("%02X ", data[i]);
}
printf("\n\tBlock size is: %d\n", size);
#else
phOsalNfc_DbgTraceBuffer[0] = '\0';
for(i = 0; i < size; i++)
{
if((i % 10) == 0)
{
ALOGD("%s", phOsalNfc_DbgTraceBuffer);
phOsalNfc_DbgTraceBuffer[0] = '\0';
}
snprintf(buf, 10, "%02X ", data[i]);
strncat(phOsalNfc_DbgTraceBuffer, buf, 10);
}
ALOGD("%s", phOsalNfc_DbgTraceBuffer);
ALOGD("Block size is: %d", size);
#endif
#endif
}
/*!
* \brief Raises exception.
* This function raises an exception of type \a eExceptionType with
* reason \a reason to stack clients.
*
* \param eExceptionType exception type.
* \param reason reason for this exception.
*
* \note Clients willing to catch exceptions are to handle the SIGABRT signal.
* On Linux, exception type and reason are passed to the signal handler as
* a pointer to a phOsalNfc_Exception_t structure.
* As sigqueue is not available in Android, exception information are
* stored in the phOsalNfc_Exception global.
*/
void phOsalNfc_RaiseException(phOsalNfc_ExceptionType_t eExceptionType, uint16_t reason)
{
if(eExceptionType == phOsalNfc_e_UnrecovFirmwareErr)
{
ALOGE("HCI Timeout - Exception raised - Force restart of NFC service");
phLibNfc_Mgt_Recovery();
abort();
} else {
ALOGD("phOsalNfc_RaiseException() called");
}
}
/*!
* \brief display data bytes.
* This function displays data bytes for debug purpose
* \param[in] pString pointer to string to be displayed.
* \param[in] length number of bytes to be displayed.
* \param[in] pBuffer pointer to data bytes to be displayed.
*
*/
void phOsalNfc_PrintData(const char *pString, uint32_t length, uint8_t *pBuffer,
int verbosity)
{
char print_buffer[length * 3 + 1];
unsigned int i;
if (pString == NULL) {
pString = "";
}
print_buffer[0] = '\0';
for (i = 0; i < length; i++) {
snprintf(&print_buffer[i*3], 4, " %02X", pBuffer[i]);
}
char llc[40] = "";
if (verbosity >= 2) {
uint8_t llc_header = 0;
if (!strcmp(pString, "SEND") && length >= 2) {
llc_header = pBuffer[1];
} else if (!strcmp(pString, "RECV") && length >= 2) {
llc_header = pBuffer[0];
}
if ((llc_header & 0xC0) == 0x80) {
// I
uint8_t ns = (llc_header & 0x38) >> 3;
uint8_t nr = llc_header & 0x07;
snprintf(&llc[0], sizeof(llc), "I %d (%d)", ns, nr);
} else if ((llc_header & 0xE0) == 0xC0) {
// S
uint8_t t = (llc_header & 0x18) >> 3;
uint8_t nr = llc_header & 0x07;
char *type;
switch (t) {
case 0x00: type = "RR "; break;
case 0x01: type = "REJ"; break;
case 0x02: type = "RNR"; break;
case 0x03: type = "SREJ"; break;
default: type = "???"; break;
}
snprintf(&llc[0], sizeof(llc), "S %s (%d)", type, nr);
} else if ((llc_header & 0xE0) == 0xE0) {
// U
snprintf(&llc[0], sizeof(llc), "U");
} else if (length > 1) {
snprintf(&llc[0], sizeof(llc), "???");
}
}
ALOGD("> %s:%s\t%s", pString, print_buffer, llc);
}
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