/*******************************************************************************
**
** Function phTmlNfc_CleanUp
**
** Description Clears all handles opened during TML initialization
**
** Parameters None
**
** Returns None
**
*******************************************************************************/
static void phTmlNfc_CleanUp(void)
{
NFCSTATUS wRetval = NFCSTATUS_SUCCESS;
if (NULL != gpphTmlNfc_Context->pDevHandle)
{
(void) phTmlNfc_i2c_reset(gpphTmlNfc_Context->pDevHandle, 0);
gpphTmlNfc_Context->bThreadDone = 0;
}
sem_destroy(&gpphTmlNfc_Context->rxSemaphore);
sem_destroy(&gpphTmlNfc_Context->txSemaphore);
sem_destroy(&gpphTmlNfc_Context->postMsgSemaphore);
phTmlNfc_i2c_close(gpphTmlNfc_Context->pDevHandle);
gpphTmlNfc_Context->pDevHandle = NULL;
/* Clear memory allocated for storing Context variables */
free((void *) gpphTmlNfc_Context);
/* Set the pointer to NULL to indicate De-Initialization */
gpphTmlNfc_Context = NULL;
return;
}
/*******************************************************************************
**
** Function phTmlNfc_IoCtl
**
** Description Resets device when insisted by upper layer
** Number of bytes to be read and buffer are passed by upper layer
** Enables reader thread if there are no read requests pending
** Returns successfully once read operation is completed
** Notifies upper layer using callback mechanism
**
** Parameters eControlCode - control code for a specific operation
**
** Returns NFC status:
** NFCSTATUS_SUCCESS - ioctl command completed successfully
** NFCSTATUS_FAILED - ioctl command request failed
**
*******************************************************************************/
NFCSTATUS phTmlNfc_IoCtl(phTmlNfc_ControlCode_t eControlCode)
{
NFCSTATUS wStatus = NFCSTATUS_SUCCESS;
if (NULL == gpphTmlNfc_Context)
{
wStatus = NFCSTATUS_FAILED;
}
else
{
switch (eControlCode)
{
case phTmlNfc_e_ResetDevice:
{
/*Reset PN54X*/
phTmlNfc_i2c_reset(gpphTmlNfc_Context->pDevHandle, 1);
usleep(100 * 1000);
phTmlNfc_i2c_reset(gpphTmlNfc_Context->pDevHandle, 0);
usleep(100 * 1000);
phTmlNfc_i2c_reset(gpphTmlNfc_Context->pDevHandle, 1);
break;
}
case phTmlNfc_e_EnableNormalMode:
{
/*Reset PN54X*/
phTmlNfc_i2c_reset(gpphTmlNfc_Context->pDevHandle, 0);
usleep(10 * 1000);
phTmlNfc_i2c_reset(gpphTmlNfc_Context->pDevHandle, 1);
usleep(100 * 1000);
break;
}
case phTmlNfc_e_EnableDownloadMode:
{
phTmlNfc_ConfigNciPktReTx(phTmlNfc_e_DisableRetrans, 0);
(void)phTmlNfc_i2c_reset(gpphTmlNfc_Context->pDevHandle,2);
usleep(100 * 1000);
break;
}
#if(NFC_NXP_ESE == TRUE)
case phTmlNfc_e_SetNfcServicePid:
{
wStatus = phTmlNfc_set_pid(gpphTmlNfc_Context->pDevHandle, nfc_service_pid);
break;
}
case phTmlNfc_e_GetP61PwrMode:
{
wStatus = phTmlNfc_i2c_get_p61_power_state(gpphTmlNfc_Context->pDevHandle);
break;
}
case phTmlNfc_e_SetP61WiredMode:
{
wStatus = phTmlNfc_i2c_set_p61_power_state(gpphTmlNfc_Context->pDevHandle, 1);
break;
}
case phTmlNfc_e_SetP61IdleMode:
{
wStatus = phTmlNfc_i2c_set_p61_power_state(gpphTmlNfc_Context->pDevHandle, 0);
break;
}
case phTmlNfc_e_SetP61DisableMode:
{
wStatus = phTmlNfc_i2c_set_p61_power_state(gpphTmlNfc_Context->pDevHandle, 2);
break;
}
case phTmlNfc_e_SetP61EnableMode:
{
wStatus = phTmlNfc_i2c_set_p61_power_state(gpphTmlNfc_Context->pDevHandle, 3);
break;
}
#endif
default:
{
wStatus = NFCSTATUS_INVALID_PARAMETER;
break;
}
}
}
return wStatus;
}
/*******************************************************************************
**
** Function phTmlNfc_i2c_open_and_configure
**
** Description Open and configure PN54X device
**
** Parameters pConfig - hardware information
** pLinkHandle - device handle
**
** Returns NFC status:
** NFCSTATUS_SUCCESS - open_and_configure operation success
** NFCSTATUS_INVALID_DEVICE - device open operation failure
**
*******************************************************************************/
NFCSTATUS phTmlNfc_i2c_open_and_configure(pphTmlNfc_Config_t pConfig, void ** pLinkHandle)
{
#ifdef PHFL_TML_ALT_NFC
NXPLOG_TML_D("phTmlNfc_i2c_open_and_configure Alternative NFC\n");
NXPLOG_TML_D( "NFC - Assign IO pins\n");
// Assign IO pins
iInterruptFd = verifyPin( PIN_INT, 0, EDGE_RISING );
iEnableFd = verifyPin( PIN_ENABLE, 1, EDGE_NONE );
NXPLOG_TML_D( "NFCHW - open I2C bus - %s\n", I2C_BUS);
// I2C bus
iI2CFd = open( I2C_BUS, O_RDWR | O_NOCTTY);
if (iI2CFd < 0) {
NXPLOG_TML_E( "Could not open I2C bus '%s' (%s)", I2C_BUS, strerror(errno));
if ( iEnableFd ) close(iEnableFd);
if ( iInterruptFd ) close(iInterruptFd);
return( NFCSTATUS_INVALID_DEVICE );
}
NXPLOG_TML_D( "NFC - open I2C device - 0x%02x\n", I2C_ADDRESS);
// I2C slave address
if (ioctl(iI2CFd, I2C_SLAVE, I2C_ADDRESS) < 0) {
NXPLOG_TML_E( "Cannot select I2C address (%s)\n", strerror(errno));
if ( iEnableFd ) close(iEnableFd);
if ( iInterruptFd ) close(iInterruptFd);
close(iI2CFd);
return( NFCSTATUS_INVALID_DEVICE );
}
/*Reset NFC Controller */
pnOn();
usleep(100 * 1000);
pnOff();
usleep(100 * 1000);
pnOn();
*pLinkHandle = (void*) ((intptr_t)dummyHandle);
#else
int nHandle;
NXPLOG_TML_D("phTmlNfc_i2c_open_and_configure\n");
NXPLOG_TML_D("Opening port=%s\n", pConfig->pDevName);
/* open port */
nHandle = open((char const *)pConfig->pDevName, O_RDWR);
if (nHandle < 0)
{
NXPLOG_TML_E("_i2c_open() Failed: retval %x",nHandle);
*pLinkHandle = NULL;
return NFCSTATUS_INVALID_DEVICE;
}
*pLinkHandle = (void*) ((intptr_t)nHandle);
/*Reset PN54X*/
phTmlNfc_i2c_reset((void *)((intptr_t)nHandle), 1);
usleep(100 * 1000);
phTmlNfc_i2c_reset((void *)((intptr_t)nHandle), 0);
usleep(100 * 1000);
phTmlNfc_i2c_reset((void *)((intptr_t)nHandle), 1);
#endif
return NFCSTATUS_SUCCESS;
}
