/******************************************************************************
*
* Copyright (C) 2011-2012 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.
*
******************************************************************************/
#include "OverrideLog.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "buildcfg.h"
#include "nfa_nv_co.h"
#include "config.h"
#include "nfc_hal_target.h"
#include "nfc_hal_nv_co.h"
extern char bcm_nfc_location[];
static const char* sNfaStorageBin = "/nfaStorage.bin";
/*******************************************************************************
**
** Function nfa_mem_co_alloc
**
** Description allocate a buffer from platform's memory pool
**
** Returns:
** pointer to buffer if successful
** NULL otherwise
**
*******************************************************************************/
extern void *nfa_mem_co_alloc(UINT32 num_bytes)
{
return malloc(num_bytes);
}
/*******************************************************************************
**
** Function nfa_mem_co_free
**
** Description free buffer previously allocated using nfa_mem_co_alloc
**
** Returns:
** Nothing
**
*******************************************************************************/
extern void nfa_mem_co_free(void *pBuffer)
{
free(pBuffer);
}
/*******************************************************************************
**
** Function nfa_nv_co_read
**
** Description This function is called by NFA to read in data from the
** previously opened file.
**
** Parameters pBuffer - buffer to read the data into.
** nbytes - number of bytes to read into the buffer.
**
** Returns void
**
** Note: Upon completion of the request, nfa_nv_ci_read() is
** called with the buffer of data, along with the number
** of bytes read into the buffer, and a status. The
** call-in function should only be called when ALL requested
** bytes have been read, the end of file has been detected,
** or an error has occurred.
**
*******************************************************************************/
extern void nfa_nv_co_read(UINT8 *pBuffer, UINT16 nbytes, UINT8 block)
{
char filename[256], filename2[256];
memset (filename, 0, sizeof(filename));
memset (filename2, 0, sizeof(filename2));
strcpy(filename2, bcm_nfc_location);
strncat(filename2, sNfaStorageBin, sizeof(filename2)-strlen(filename2)-1);
if (strlen(filename2) > 200)
{
ALOGE ("%s: filename too long", __FUNCTION__);
return;
}
sprintf (filename, "%s%u", filename2, block);
ALOGD ("%s: buffer len=%u; file=%s", __FUNCTION__, nbytes, filename);
int fileStream = open (filename, O_RDONLY);
if (fileStream >= 0)
{
unsigned short checksum = 0;
size_t actualReadCrc = read (fileStream, &checksum, sizeof(checksum));
size_t actualReadData = read (fileStream, pBuffer, nbytes);
close (fileStream);
if (actualReadData > 0)
{
ALOGD ("%s: data size=%zu", __FUNCTION__, actualReadData);
nfa_nv_ci_read (actualReadData, NFA_NV_CO_OK, block);
}
else
{
ALOGE ("%s: fail to read", __FUNCTION__);
nfa_nv_ci_read (0, NFA_NV_CO_FAIL, block);
}
}
else
{
ALOGD ("%s: fail to open", __FUNCTION__);
nfa_nv_ci_read (0, NFA_NV_CO_FAIL, block);
}
}
/*******************************************************************************
**
** Function nfa_nv_co_write
**
** Description This function is called by io to send file data to the
** phone.
**
** Parameters pBuffer - buffer to read the data from.
** nbytes - number of bytes to write out to the file.
**
** Returns void
**
** Note: Upon completion of the request, nfa_nv_ci_write() is
** called with the file descriptor and the status. The
** call-in function should only be called when ALL requested
** bytes have been written, or an error has been detected,
**
*******************************************************************************/
extern void nfa_nv_co_write(const UINT8 *pBuffer, UINT16 nbytes, UINT8 block)
{
char filename[256], filename2[256];
memset (filename, 0, sizeof(filename));
memset (filename2, 0, sizeof(filename2));
strcpy(filename2, bcm_nfc_location);
strncat(filename2, sNfaStorageBin, sizeof(filename2)-strlen(filename2)-1);
if (strlen(filename2) > 200)
{
ALOGE ("%s: filename too long", __FUNCTION__);
return;
}
sprintf (filename, "%s%u", filename2, block);
ALOGD ("%s: bytes=%u; file=%s", __FUNCTION__, nbytes, filename);
int fileStream = 0;
fileStream = open (filename, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
if (fileStream >= 0)
{
unsigned short checksum = crcChecksumCompute (pBuffer, nbytes);
size_t actualWrittenCrc = write (fileStream, &checksum, sizeof(checksum));
size_t actualWrittenData = write (fileStream, pBuffer, nbytes);
ALOGD ("%s: %zu bytes written", __FUNCTION__, actualWrittenData);
if ((actualWrittenData == nbytes) && (actualWrittenCrc == sizeof(checksum)))
{
nfa_nv_ci_write (NFA_NV_CO_OK);
}
else
{
ALOGE ("%s: fail to write", __FUNCTION__);
nfa_nv_ci_write (NFA_NV_CO_FAIL);
}
close (fileStream);
}
else
{
ALOGE ("%s: fail to open, error = %d", __FUNCTION__, errno);
nfa_nv_ci_write (NFA_NV_CO_FAIL);
}
}
/*******************************************************************************
**
** Function delete_stack_non_volatile_store
**
** Description Delete all the content of the stack's storage location.
**
** Parameters forceDelete: unconditionally delete the storage.
**
** Returns none
**
*******************************************************************************/
void delete_stack_non_volatile_store (BOOLEAN forceDelete)
{
static BOOLEAN firstTime = TRUE;
char filename[256], filename2[256];
if ((firstTime == FALSE) && (forceDelete == FALSE))
return;
firstTime = FALSE;
ALOGD ("%s", __FUNCTION__);
memset (filename, 0, sizeof(filename));
memset (filename2, 0, sizeof(filename2));
strcpy(filename2, bcm_nfc_location);
strncat(filename2, sNfaStorageBin, sizeof(filename2)-strlen(filename2)-1);
if (strlen(filename2) > 200)
{
ALOGE ("%s: filename too long", __FUNCTION__);
return;
}
sprintf (filename, "%s%u", filename2, DH_NV_BLOCK);
remove (filename);
sprintf (filename, "%s%u", filename2, HC_F3_NV_BLOCK);
remove (filename);
sprintf (filename, "%s%u", filename2, HC_F4_NV_BLOCK);
remove (filename);
sprintf (filename, "%s%u", filename2, HC_F2_NV_BLOCK);
remove (filename);
sprintf (filename, "%s%u", filename2, HC_F5_NV_BLOCK);
remove (filename);
}
/*******************************************************************************
**
** Function verify_stack_non_volatile_store
**
** Description Verify the content of all non-volatile store.
**
** Parameters none
**
** Returns none
**
*******************************************************************************/
void verify_stack_non_volatile_store ()
{
ALOGD ("%s", __FUNCTION__);
char filename[256], filename2[256];
BOOLEAN isValid = FALSE;
memset (filename, 0, sizeof(filename));
memset (filename2, 0, sizeof(filename2));
strcpy(filename2, bcm_nfc_location);
strncat(filename2, sNfaStorageBin, sizeof(filename2)-strlen(filename2)-1);
if (strlen(filename2) > 200)
{
ALOGE ("%s: filename too long", __FUNCTION__);
return;
}
sprintf (filename, "%s%u", filename2, DH_NV_BLOCK);
if (crcChecksumVerifyIntegrity (filename))
{
sprintf (filename, "%s%u", filename2, HC_F3_NV_BLOCK);
if (crcChecksumVerifyIntegrity (filename))
{
sprintf (filename, "%s%u", filename2, HC_F4_NV_BLOCK);
if (crcChecksumVerifyIntegrity (filename))
{
sprintf (filename, "%s%u", filename2, HC_F2_NV_BLOCK);
if (crcChecksumVerifyIntegrity (filename))
{
sprintf (filename, "%s%u", filename2, HC_F5_NV_BLOCK);
if (crcChecksumVerifyIntegrity (filename))
isValid = TRUE;
}
}
}
}
if (isValid == FALSE)
delete_stack_non_volatile_store (TRUE);
}