/*****************************************************************************
*
* connect_to_exosite
*
* \param None
*
* \return success: socket handle; failure: -1;
*
* \brief Establishes a connection with Exosite API server
*
*****************************************************************************/
long
connect_to_exosite(void)
{
unsigned char connectRetries = 0;
unsigned char server[META_SERVER_SIZE];
long sock = -1;
exosite_meta_read(server, META_SERVER_SIZE, META_SERVER);
while (connectRetries++ <= EXOSITE_MAX_CONNECT_RETRY_COUNT) {
sock = exoHAL_SocketOpenTCP(server);
if (sock < 0)
{
continue;
}
if (exoHAL_ServerConnect(sock) < 0) // Try to connect
{
// TODO - the typical reason the connect doesn't work is because
// something was wrong in the way the comms hardware was initialized (timing, bit
// error, etc...). There may be a graceful way to kick the hardware
// back into gear at the right state, but for now, we just
// return and let the caller retry us if they want
continue;
} else {
connectRetries = 0;
break;
}
}
// Success
return sock;
}
/*****************************************************************************
*
* exosite_meta_init
*
* \param int reset : 1 - reset meta data
*
* \return None
*
* \brief Does whatever we need to do to initialize the NV meta structure
*
*****************************************************************************/
void exosite_meta_init(int reset)
{
char strBuf[META_MARK_SIZE];
exoHAL_EnableMeta(); //turn on the necessary hardware / peripherals
//check our meta mark - if it isn't there, we wipe the meta structure
exosite_meta_read((unsigned char *)strBuf, META_MARK_SIZE, META_MARK);
if (strncmp(strBuf, EXOMARK, META_MARK_SIZE) || reset)
exosite_meta_defaults();
return;
}
/*****************************************************************************
*
* Exosite_GetCIK
*
* \param pointer to buffer to receive CIK or NULL
*
* \return 1 - CIK was valid, 0 - CIK was invalid.
*
* \brief Retrieves a CIK from flash / non volatile and verifies the CIK
* format is valid
*
*****************************************************************************/
int
Exosite_GetCIK(char * pCIK)
{
unsigned char i;
char tempCIK[CIK_LENGTH + 1];
exosite_meta_read((unsigned char *)tempCIK, CIK_LENGTH, META_CIK);
tempCIK[CIK_LENGTH] = 0;
for (i = 0; i < CIK_LENGTH; i++)
{
if (!(tempCIK[i] >= 'a' && tempCIK[i] <= 'f' || tempCIK[i] >= '0' && tempCIK[i] <= '9'))
{
status_code = EXO_STATUS_BAD_CIK;
return 0;
}
}
if (NULL != pCIK)
memcpy(pCIK ,tempCIK ,CIK_LENGTH + 1);
return 1;
}
/*****************************************************************************
*
* Exosite_GetMRF
*
* \param char *buffer, int length
*
* \return None
*
* \brief Retrieves a MRF structure from flash / non volatile
*
*****************************************************************************/
void
Exosite_GetMRF(char *buffer, int length)
{
exosite_meta_read((unsigned char *)buffer, length, META_MFR);
}
