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unleashed-firmware/lib/ST25RFAL002/source/rfal_nfc.c

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NFC: application + rfal + driver.
2020-10-18 22:09:48 +00:00
/**
******************************************************************************
*
* COPYRIGHT(c) 2020 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/*! \file rfal_nfc.c
*
* \author Gustavo Patricio
*
* \brief RFAL NFC device
*
* This module provides the required features to behave as an NFC Poller
* or Listener device. It grants an easy to use interface for the following
* activities: Technology Detection, Collision Resollution, Activation,
* Data Exchange, and Deactivation
*
* This layer is influenced by (but not fully aligned with) the NFC Forum
* specifications, in particular: Activity 2.0 and NCI 2.0
*
*/
/*
******************************************************************************
* INCLUDES
******************************************************************************
*/
#include "rfal_nfc.h"
#include "utils.h"
#include "rfal_analogConfig.h"
/*
******************************************************************************
* GLOBAL DEFINES
******************************************************************************
*/
#define RFAL_NFC_MAX_DEVICES 5U /* Max number of devices supported */
/*
******************************************************************************
* GLOBAL MACROS
******************************************************************************
*/
#define rfalNfcNfcNotify( st ) if( gNfcDev.disc.notifyCb != NULL ) gNfcDev.disc.notifyCb( st )
/*
******************************************************************************
* GLOBAL TYPES
******************************************************************************
*/
/*! Buffer union, only one interface is used at a time */
typedef union{ /* PRQA S 0750 # MISRA 19.2 - Members of the union will not be used concurrently, only one interface at a time */
rfalIsoDepBufFormat isoDepBuf; /*!< ISO-DEP buffer format (with header/prologue) */
rfalNfcDepBufFormat nfcDepBuf; /*!< NFC-DEP buffer format (with header/prologue) */
}rfalNfcTmpBuffer;
typedef struct{
rfalNfcState state; /* Main state */
uint16_t techsFound; /* Technologies found bitmask */
uint16_t techs2do; /* Technologies still to be performed */
rfalBitRate ap2pBR; /* Bit rate to poll for AP2P */
uint8_t selDevIdx; /* Selected device index */
rfalNfcDevice *activeDev; /* Active device pointer */
rfalNfcDiscoverParam disc; /* Discovery parameters */
rfalNfcDevice devList[RFAL_NFC_MAX_DEVICES]; /*!< Location of device list */
uint8_t devCnt; /* Decices found counter */
uint32_t discTmr; /* Discovery Total duration timer */
ReturnCode dataExErr; /* Last Data Exchange error */
bool discRestart; /* Restart discover after deactivation flag */
bool isRxChaining; /* Flag indicating Other device is chaining */
uint32_t lmMask; /* Listen Mode mask */
bool isTechInit; /* Flag indicating technology has been set */
bool isOperOngoing; /* Flag indicating opration is ongoing */
rfalNfcBuffer txBuf; /* Tx buffer for Data Exchange */
rfalNfcBuffer rxBuf; /* Rx buffer for Data Exchange */
uint16_t rxLen; /* Length of received data on Data Exchange */
#if RFAL_FEATURE_NFC_DEP || RFAL_FEATURE_ISO_DEP
rfalNfcTmpBuffer tmpBuf; /* Tmp buffer for Data Exchange */
#endif /* RFAL_FEATURE_NFC_DEP || RFAL_FEATURE_ISO_DEP */
}rfalNfc;
/*
******************************************************************************
* LOCAL VARIABLES
******************************************************************************
*/
#ifdef RFAL_TEST_MODE
rfalNfc gNfcDev;
#else /* RFAL_TEST_MODE */
static rfalNfc gNfcDev;
#endif /* RFAL_TEST_MODE */
/*
******************************************************************************
* LOCAL FUNCTION PROTOTYPES
******************************************************************************
*/
static ReturnCode rfalNfcPollTechDetetection( void );
static ReturnCode rfalNfcPollCollResolution( void );
static ReturnCode rfalNfcPollActivation( uint8_t devIt );
static ReturnCode rfalNfcDeactivation( void );
#if RFAL_FEATURE_NFC_DEP
static ReturnCode rfalNfcNfcDepActivate( rfalNfcDevice *device, rfalNfcDepCommMode commMode, const uint8_t *atrReq, uint16_t atrReqLen );
#endif /* RFAL_FEATURE_NFC_DEP */
#if RFAL_FEATURE_LISTEN_MODE
static ReturnCode rfalNfcListenActivation( void );
#endif /* RFAL_FEATURE_LISTEN_MODE*/
/*******************************************************************************/
ReturnCode rfalNfcInitialize( void )
{
ReturnCode err;
gNfcDev.state = RFAL_NFC_STATE_NOTINIT;
rfalAnalogConfigInitialize(); /* Initialize RFAL's Analog Configs */
EXIT_ON_ERR( err, rfalInitialize() ); /* Initialize RFAL */
gNfcDev.state = RFAL_NFC_STATE_IDLE; /* Go to initialized */
return ERR_NONE;
}
/*******************************************************************************/
ReturnCode rfalNfcDiscover( const rfalNfcDiscoverParam *disParams )
{
/* Check if initialization has been performed */
if( gNfcDev.state != RFAL_NFC_STATE_IDLE )
{
return ERR_WRONG_STATE;
}
/* Check valid parameters */
if( (disParams == NULL) || (disParams->devLimit > RFAL_NFC_MAX_DEVICES) || (disParams->devLimit == 0U) ||
( (disParams->maxBR > RFAL_BR_1695) && (disParams->maxBR != RFAL_BR_KEEP) ) ||
( ((disParams->techs2Find & RFAL_NFC_POLL_TECH_F) != 0U) && (disParams->nfcfBR != RFAL_BR_212) && (disParams->nfcfBR != RFAL_BR_424) ) ||
( (((disParams->techs2Find & RFAL_NFC_POLL_TECH_AP2P) != 0U) && (disParams->ap2pBR > RFAL_BR_424)) || (disParams->GBLen > RFAL_NFCDEP_GB_MAX_LEN) ) )
{
return ERR_PARAM;
}
if( (((disParams->techs2Find & RFAL_NFC_POLL_TECH_A) != 0U) && !((bool)RFAL_FEATURE_NFCA)) ||
(((disParams->techs2Find & RFAL_NFC_POLL_TECH_B) != 0U) && !((bool)RFAL_FEATURE_NFCB)) ||
(((disParams->techs2Find & RFAL_NFC_POLL_TECH_F) != 0U) && !((bool)RFAL_FEATURE_NFCF)) ||
(((disParams->techs2Find & RFAL_NFC_POLL_TECH_V) != 0U) && !((bool)RFAL_FEATURE_NFCV)) ||
(((disParams->techs2Find & RFAL_NFC_POLL_TECH_ST25TB) != 0U) && !((bool)RFAL_FEATURE_ST25TB)) ||
(((disParams->techs2Find & RFAL_NFC_POLL_TECH_AP2P) != 0U) && !((bool)RFAL_FEATURE_NFC_DEP)) ||
(((disParams->techs2Find & RFAL_NFC_LISTEN_TECH_A) != 0U) && !((bool)RFAL_FEATURE_NFCA)) ||
(((disParams->techs2Find & RFAL_NFC_LISTEN_TECH_B) != 0U) && !((bool)RFAL_FEATURE_NFCB)) ||
(((disParams->techs2Find & RFAL_NFC_LISTEN_TECH_F) != 0U) && !((bool)RFAL_FEATURE_NFCF)) ||
(((disParams->techs2Find & RFAL_NFC_LISTEN_TECH_AP2P) != 0U) && !((bool)RFAL_FEATURE_NFC_DEP)) )
{
return ERR_DISABLED; /* PRQA S 2880 # MISRA 2.1 - Unreachable code due to configuration option being set/unset */
}
/* Initialize context for discovery */
gNfcDev.activeDev = NULL;
gNfcDev.techsFound = RFAL_NFC_TECH_NONE;
gNfcDev.devCnt = 0;
gNfcDev.discRestart = true;
gNfcDev.isTechInit = false;
gNfcDev.disc = *disParams;
/* Calculate Listen Mask */
gNfcDev.lmMask = 0U;
gNfcDev.lmMask |= (((gNfcDev.disc.techs2Find & RFAL_NFC_LISTEN_TECH_A) != 0U) ? RFAL_LM_MASK_NFCA : 0U);
gNfcDev.lmMask |= (((gNfcDev.disc.techs2Find & RFAL_NFC_LISTEN_TECH_B) != 0U) ? RFAL_LM_MASK_NFCB : 0U);
gNfcDev.lmMask |= (((gNfcDev.disc.techs2Find & RFAL_NFC_LISTEN_TECH_F) != 0U) ? RFAL_LM_MASK_NFCF : 0U);
gNfcDev.lmMask |= (((gNfcDev.disc.techs2Find & RFAL_NFC_LISTEN_TECH_AP2P) != 0U) ? RFAL_LM_MASK_ACTIVE_P2P : 0U);
#if !RFAL_FEATURE_LISTEN_MODE
/* Check if Listen Mode is supported/Enabled */
if( gNfcDev.lmMask != 0U )
{
return ERR_DISABLED;
}
#endif
gNfcDev.state = RFAL_NFC_STATE_START_DISCOVERY;
return ERR_NONE;
}
/*******************************************************************************/
ReturnCode rfalNfcDeactivate( bool discovery )
{
/* Check for valid state */
if( gNfcDev.state <= RFAL_NFC_STATE_IDLE )
{
return ERR_WRONG_STATE;
}
/* Check if discovery is to continue afterwards */
if( (discovery == true) && (gNfcDev.disc.techs2Find != RFAL_NFC_TECH_NONE) )
{
/* If so let the state machine continue*/
gNfcDev.discRestart = discovery;
gNfcDev.state = RFAL_NFC_STATE_DEACTIVATION;
}
else
{
/* Otherwise deactivate immediately and go to IDLE */
rfalNfcDeactivation();
gNfcDev.state = RFAL_NFC_STATE_IDLE;
}
return ERR_NONE;
}
/*******************************************************************************/
ReturnCode rfalNfcSelect( uint8_t devIdx )
{
/* Check for valid state */
if( gNfcDev.state != RFAL_NFC_STATE_POLL_SELECT )
{
return ERR_WRONG_STATE;
}
gNfcDev.selDevIdx = devIdx;
gNfcDev.state = RFAL_NFC_STATE_POLL_ACTIVATION;
return ERR_NONE;
}
/*******************************************************************************/
rfalNfcState rfalNfcGetState( void )
{
return gNfcDev.state;
}
/*******************************************************************************/
ReturnCode rfalNfcGetDevicesFound( rfalNfcDevice **devList, uint8_t *devCnt )
{
/* Check for valid state */
if( gNfcDev.state < RFAL_NFC_STATE_POLL_SELECT )
{
return ERR_WRONG_STATE;
}
/* Check valid parameters */
if( (devList == NULL) || (devCnt == NULL) )
{
return ERR_PARAM;
}
*devCnt = gNfcDev.devCnt;
*devList = gNfcDev.devList;
return ERR_NONE;
}
/*******************************************************************************/
ReturnCode rfalNfcGetActiveDevice( rfalNfcDevice **dev )
{
/* Check for valid state */
if( gNfcDev.state < RFAL_NFC_STATE_ACTIVATED )
{
return ERR_WRONG_STATE;
}
/* Check valid parameter */
if( dev == NULL )
{
return ERR_PARAM;
}
/* Check for valid state */
if( (gNfcDev.devCnt == 0U) || (gNfcDev.activeDev == NULL) )
{
return ERR_REQUEST;
}
*dev = gNfcDev.activeDev;
return ERR_NONE;
}
/*******************************************************************************/
void rfalNfcWorker( void )
{
ReturnCode err;
rfalWorker(); /* Execute RFAL process */
switch( gNfcDev.state )
{
/*******************************************************************************/
case RFAL_NFC_STATE_NOTINIT:
case RFAL_NFC_STATE_IDLE:
break;
/*******************************************************************************/
case RFAL_NFC_STATE_START_DISCOVERY:
/* Initialize context for discovery cycle */
gNfcDev.devCnt = 0;
gNfcDev.selDevIdx = 0;
gNfcDev.techsFound = RFAL_NFC_TECH_NONE;
gNfcDev.techs2do = gNfcDev.disc.techs2Find;
gNfcDev.state = RFAL_NFC_STATE_POLL_TECHDETECT;
#if RFAL_FEATURE_WAKEUP_MODE
/* Check if Low power Wake-Up is to be performed */
if( gNfcDev.disc.wakeupEnabled )
{
/* Initialize Low power Wake-up mode and wait */
err = rfalWakeUpModeStart( (gNfcDev.disc.wakeupConfigDefault ? NULL : &gNfcDev.disc.wakeupConfig) );
if( err == ERR_NONE )
{
gNfcDev.state = RFAL_NFC_STATE_WAKEUP_MODE;
rfalNfcNfcNotify( gNfcDev.state ); /* Notify caller that WU was started */
}
}
#endif /* RFAL_FEATURE_WAKEUP_MODE */
break;
/*******************************************************************************/
case RFAL_NFC_STATE_WAKEUP_MODE:
#if RFAL_FEATURE_WAKEUP_MODE
/* Check if the Wake-up mode has woke */
if( rfalWakeUpModeHasWoke() )
{
rfalWakeUpModeStop(); /* Disable Wake-up mode */
gNfcDev.state = RFAL_NFC_STATE_POLL_TECHDETECT; /* Go to Technology detection */
rfalNfcNfcNotify( gNfcDev.state ); /* Notify caller that WU has woke */
}
#endif /* RFAL_FEATURE_WAKEUP_MODE */
break;
/*******************************************************************************/
case RFAL_NFC_STATE_POLL_TECHDETECT:
/* Start total duration timer */
platformTimerDestroy( gNfcDev.discTmr );
gNfcDev.discTmr = (uint32_t)platformTimerCreate( gNfcDev.disc.totalDuration );
err = rfalNfcPollTechDetetection(); /* Perform Technology Detection */
if( err != ERR_BUSY ) /* Wait until all technologies are performed */
{
if( ( err != ERR_NONE) || (gNfcDev.techsFound == RFAL_NFC_TECH_NONE) )/* Check if any error occurred or no techs were found */
{
rfalFieldOff();
gNfcDev.state = RFAL_NFC_STATE_LISTEN_TECHDETECT; /* Nothing found as poller, go to listener */
break;
}
gNfcDev.techs2do = gNfcDev.techsFound; /* Store the found technologies for collision resolution */
gNfcDev.state = RFAL_NFC_STATE_POLL_COLAVOIDANCE; /* One or more devices found, go to Collision Avoidance */
}
break;
/*******************************************************************************/
case RFAL_NFC_STATE_POLL_COLAVOIDANCE:
err = rfalNfcPollCollResolution(); /* Resolve any eventual collision */
if( err != ERR_BUSY ) /* Wait until all technologies are performed */
{
if( (err != ERR_NONE) || (gNfcDev.devCnt == 0U) ) /* Check if any error occurred or no devices were found */
{
gNfcDev.state = RFAL_NFC_STATE_DEACTIVATION;
break; /* Unable to retrieve any device, restart loop */
}
/* Check if more than one device has been found */
if( gNfcDev.devCnt > 1U )
{
/* If more than one device was found inform upper layer to choose which one to activate */
if( gNfcDev.disc.notifyCb != NULL )
{
gNfcDev.state = RFAL_NFC_STATE_POLL_SELECT;
gNfcDev.disc.notifyCb( gNfcDev.state );
break;
}
}
/* If only one device or no callback has been set, activate the first device found */
gNfcDev.selDevIdx = 0U;
gNfcDev.state = RFAL_NFC_STATE_POLL_ACTIVATION;
}
break;
/*******************************************************************************/
case RFAL_NFC_STATE_POLL_ACTIVATION:
err = rfalNfcPollActivation( gNfcDev.selDevIdx );
if( err != ERR_BUSY ) /* Wait until all Activation is complete */
{
if( err != ERR_NONE ) /* Activation failed selected device */
{
gNfcDev.state = RFAL_NFC_STATE_DEACTIVATION; /* If Activation failed, restart loop */
break;
}
gNfcDev.state = RFAL_NFC_STATE_ACTIVATED; /* Device has been properly activated */
rfalNfcNfcNotify( gNfcDev.state ); /* Inform upper layer that a device has been activated */
}
break;
/*******************************************************************************/
case RFAL_NFC_STATE_DATAEXCHANGE:
rfalNfcDataExchangeGetStatus(); /* Run the internal state machine */
if( gNfcDev.dataExErr != ERR_BUSY ) /* If Dataexchange has terminated */
{
gNfcDev.state = RFAL_NFC_STATE_DATAEXCHANGE_DONE; /* Go to done state */
rfalNfcNfcNotify( gNfcDev.state ); /* And notify caller */
}
if( gNfcDev.dataExErr == ERR_SLEEP_REQ ) /* Check if Listen mode has to go to Sleep */
{
gNfcDev.state = RFAL_NFC_STATE_LISTEN_SLEEP; /* Go to Listen Sleep state */
rfalNfcNfcNotify( gNfcDev.state ); /* And notify caller */
}
break;
/*******************************************************************************/
case RFAL_NFC_STATE_DEACTIVATION:
rfalNfcDeactivation(); /* Deactivate current device */
gNfcDev.state = ((gNfcDev.discRestart) ? RFAL_NFC_STATE_START_DISCOVERY : RFAL_NFC_STATE_IDLE);
rfalNfcNfcNotify( gNfcDev.state ); /* Notify caller */
break;
/*******************************************************************************/
case RFAL_NFC_STATE_LISTEN_TECHDETECT:
if( platformTimerIsExpired( gNfcDev.discTmr ) )
{
#if RFAL_FEATURE_LISTEN_MODE
rfalListenStop();
#else
rfalFieldOff();
#endif /* RFAL_FEATURE_LISTEN_MODE */
gNfcDev.state = RFAL_NFC_STATE_START_DISCOVERY; /* Restart the discovery loop */
rfalNfcNfcNotify( gNfcDev.state ); /* Notify caller */
break;
}
#if RFAL_FEATURE_LISTEN_MODE
if( gNfcDev.lmMask != 0U ) /* Check if configured to perform Listen mode */
{
err = rfalListenStart( gNfcDev.lmMask, &gNfcDev.disc.lmConfigPA, NULL, &gNfcDev.disc.lmConfigPF, (uint8_t*)&gNfcDev.rxBuf.rfBuf, (uint16_t)rfalConvBytesToBits(sizeof(gNfcDev.rxBuf.rfBuf)), &gNfcDev.rxLen );
if( err == ERR_NONE )
{
gNfcDev.state = RFAL_NFC_STATE_LISTEN_COLAVOIDANCE; /* Wait for listen mode to be activated */
}
}
break;
/*******************************************************************************/
case RFAL_NFC_STATE_LISTEN_COLAVOIDANCE:
if( platformTimerIsExpired( gNfcDev.discTmr ) ) /* Check if the total duration has been reached */
{
rfalListenStop();
gNfcDev.state = RFAL_NFC_STATE_START_DISCOVERY; /* Restart the discovery loop */
rfalNfcNfcNotify( gNfcDev.state ); /* Notify caller */
break;
}
/* Check for external field */
if( rfalListenGetState( NULL, NULL ) >= RFAL_LM_STATE_IDLE )
{
gNfcDev.state = RFAL_NFC_STATE_LISTEN_ACTIVATION; /* Wait for listen mode to be activated */
}
break;
/*******************************************************************************/
case RFAL_NFC_STATE_LISTEN_ACTIVATION:
case RFAL_NFC_STATE_LISTEN_SLEEP:
err = rfalNfcListenActivation();
if( err != ERR_BUSY )
{
if( err == ERR_NONE )
{
gNfcDev.activeDev = gNfcDev.devList; /* Assign the active device to be used further on */
gNfcDev.devCnt++;
gNfcDev.state = RFAL_NFC_STATE_ACTIVATED; /* Device has been properly activated */
rfalNfcNfcNotify( gNfcDev.state ); /* Inform upper layer that a device has been activated */
}
else
{
rfalListenStop();
gNfcDev.state = RFAL_NFC_STATE_START_DISCOVERY; /* Restart the discovery loop */
rfalNfcNfcNotify( gNfcDev.state ); /* Notify caller */
}
}
#endif /* RFAL_FEATURE_LISTEN_MODE */
break;
/*******************************************************************************/
case RFAL_NFC_STATE_ACTIVATED:
case RFAL_NFC_STATE_POLL_SELECT:
case RFAL_NFC_STATE_DATAEXCHANGE_DONE:
default:
return;
}
}
/*******************************************************************************/
ReturnCode rfalNfcDataExchangeStart( uint8_t *txData, uint16_t txDataLen, uint8_t **rxData, uint16_t **rvdLen, uint32_t fwt )
{
ReturnCode err;
rfalTransceiveContext ctx;
/*******************************************************************************/
/* The Data Exchange is divided in two different moments, the trigger/Start of *
* the transfer followed by the check until its completion */
if( (gNfcDev.state >= RFAL_NFC_STATE_ACTIVATED) && (gNfcDev.activeDev != NULL) )
{
/*******************************************************************************/
/* In Listen mode is the Poller that initiates the communicatation */
/* Assign output parameters and rfalNfcDataExchangeGetStatus will return */
/* incoming data from Poller/Initiator */
if( (gNfcDev.state == RFAL_NFC_STATE_ACTIVATED) && rfalNfcIsRemDevPoller( gNfcDev.activeDev->type ) )
{
if( txDataLen > 0U )
{
return ERR_WRONG_STATE;
}
*rvdLen = (uint16_t*)&gNfcDev.rxLen;
*rxData = (uint8_t*)( (gNfcDev.activeDev->rfInterface == RFAL_NFC_INTERFACE_ISODEP) ? gNfcDev.rxBuf.isoDepBuf.apdu :
((gNfcDev.activeDev->rfInterface == RFAL_NFC_INTERFACE_NFCDEP) ? gNfcDev.rxBuf.nfcDepBuf.pdu : gNfcDev.rxBuf.rfBuf));
return ERR_NONE;
}
/*******************************************************************************/
switch( gNfcDev.activeDev->rfInterface ) /* Check which RF interface shall be used/has been activated */
{
/*******************************************************************************/
case RFAL_NFC_INTERFACE_RF:
rfalCreateByteFlagsTxRxContext( ctx, (uint8_t*)txData, txDataLen, gNfcDev.rxBuf.rfBuf, sizeof(gNfcDev.rxBuf.rfBuf), &gNfcDev.rxLen, RFAL_TXRX_FLAGS_DEFAULT, fwt );
*rxData = (uint8_t*)gNfcDev.rxBuf.rfBuf;
*rvdLen = (uint16_t*)&gNfcDev.rxLen;
err = rfalStartTransceive( &ctx );
break;
#if RFAL_FEATURE_ISO_DEP
/*******************************************************************************/
case RFAL_NFC_INTERFACE_ISODEP:
{
rfalIsoDepApduTxRxParam isoDepTxRx;
if( txDataLen > sizeof(gNfcDev.txBuf.isoDepBuf.apdu) )
{
return ERR_NOMEM;
}
if( txDataLen > 0U )
{
ST_MEMCPY( (uint8_t*)gNfcDev.txBuf.isoDepBuf.apdu, txData, txDataLen );
}
isoDepTxRx.DID = RFAL_ISODEP_NO_DID;
isoDepTxRx.ourFSx = RFAL_ISODEP_FSX_KEEP;
isoDepTxRx.FSx = gNfcDev.activeDev->proto.isoDep.info.FSx;
isoDepTxRx.dFWT = gNfcDev.activeDev->proto.isoDep.info.dFWT;
isoDepTxRx.FWT = gNfcDev.activeDev->proto.isoDep.info.FWT;
isoDepTxRx.txBuf = &gNfcDev.txBuf.isoDepBuf;
isoDepTxRx.txBufLen = txDataLen;
isoDepTxRx.rxBuf = &gNfcDev.rxBuf.isoDepBuf;
isoDepTxRx.rxLen = &gNfcDev.rxLen;
isoDepTxRx.tmpBuf = &gNfcDev.tmpBuf.isoDepBuf;
*rxData = (uint8_t*)gNfcDev.rxBuf.isoDepBuf.apdu;
*rvdLen = (uint16_t*)&gNfcDev.rxLen;
/*******************************************************************************/
/* Trigger a RFAL ISO-DEP Transceive */
err = rfalIsoDepStartApduTransceive( isoDepTxRx );
break;
}
#endif /* RFAL_FEATURE_ISO_DEP */
#if RFAL_FEATURE_NFC_DEP
/*******************************************************************************/
case RFAL_NFC_INTERFACE_NFCDEP:
{
rfalNfcDepPduTxRxParam nfcDepTxRx;
if( txDataLen > sizeof(gNfcDev.txBuf.nfcDepBuf.pdu) )
{
return ERR_NOMEM;
}
if( txDataLen > 0U)
{
ST_MEMCPY( (uint8_t*)gNfcDev.txBuf.nfcDepBuf.pdu, txData, txDataLen );
}
nfcDepTxRx.DID = RFAL_NFCDEP_DID_KEEP;
nfcDepTxRx.FSx = rfalNfcIsRemDevListener(gNfcDev.activeDev->type) ?
rfalNfcDepLR2FS( (uint8_t)rfalNfcDepPP2LR( gNfcDev.activeDev->proto.nfcDep.activation.Target.ATR_RES.PPt ) ) :
rfalNfcDepLR2FS( (uint8_t)rfalNfcDepPP2LR( gNfcDev.activeDev->proto.nfcDep.activation.Initiator.ATR_REQ.PPi ) );
nfcDepTxRx.dFWT = gNfcDev.activeDev->proto.nfcDep.info.dFWT;
nfcDepTxRx.FWT = gNfcDev.activeDev->proto.nfcDep.info.FWT;
nfcDepTxRx.txBuf = &gNfcDev.txBuf.nfcDepBuf;
nfcDepTxRx.txBufLen = txDataLen;
nfcDepTxRx.rxBuf = &gNfcDev.rxBuf.nfcDepBuf;
nfcDepTxRx.rxLen = &gNfcDev.rxLen;
nfcDepTxRx.tmpBuf = &gNfcDev.tmpBuf.nfcDepBuf;
*rxData = (uint8_t*)gNfcDev.rxBuf.nfcDepBuf.pdu;
*rvdLen = (uint16_t*)&gNfcDev.rxLen;
/*******************************************************************************/
/* Trigger a RFAL NFC-DEP Transceive */
err = rfalNfcDepStartPduTransceive( nfcDepTxRx );
break;
}
#endif /* RFAL_FEATURE_NFC_DEP */
/*******************************************************************************/
default:
err = ERR_PARAM;
break;
}
/* If a transceive has succesfully started flag Data Exchange as ongoing */
if( err == ERR_NONE )
{
gNfcDev.dataExErr = ERR_BUSY;
gNfcDev.state = RFAL_NFC_STATE_DATAEXCHANGE;
}
return err;
}
return ERR_WRONG_STATE;
}
/*******************************************************************************/
ReturnCode rfalNfcDataExchangeGetStatus( void )
{
/*******************************************************************************/
/* Check if it's the first frame received in Listen mode */
if( gNfcDev.state == RFAL_NFC_STATE_ACTIVATED )
{
/* Continue data exchange as normal */
gNfcDev.dataExErr = ERR_BUSY;
gNfcDev.state = RFAL_NFC_STATE_DATAEXCHANGE;
/* Check if we performing in T3T CE */
if( (gNfcDev.activeDev->type == RFAL_NFC_POLL_TYPE_NFCF) && (gNfcDev.activeDev->rfInterface == RFAL_NFC_INTERFACE_RF) )
{
/* The first frame has been retrieved by rfalListenMode, flag data immediately */
/* Can only call rfalGetTransceiveStatus() after starting a transceive with rfalStartTransceive */
gNfcDev.dataExErr = ERR_NONE;
}
}
/*******************************************************************************/
/* Check if we are in we have been placed to sleep, and return last error */
if( gNfcDev.state == RFAL_NFC_STATE_LISTEN_SLEEP )
{
return gNfcDev.dataExErr; /* ERR_SLEEP_REQ */
}
/*******************************************************************************/
/* Check if Data exchange has been started */
if( (gNfcDev.state != RFAL_NFC_STATE_DATAEXCHANGE) && (gNfcDev.state != RFAL_NFC_STATE_DATAEXCHANGE_DONE) )
{
return ERR_WRONG_STATE;
}
/* Check if Data exchange is still ongoing */
if( gNfcDev.dataExErr == ERR_BUSY )
{
switch( gNfcDev.activeDev->rfInterface )
{
/*******************************************************************************/
case RFAL_NFC_INTERFACE_RF:
gNfcDev.dataExErr = rfalGetTransceiveStatus();
break;
#if RFAL_FEATURE_ISO_DEP
/*******************************************************************************/
case RFAL_NFC_INTERFACE_ISODEP:
gNfcDev.dataExErr = rfalIsoDepGetApduTransceiveStatus();
break;
#endif /* RFAL_FEATURE_ISO_DEP */
/*******************************************************************************/
#if RFAL_FEATURE_NFC_DEP
case RFAL_NFC_INTERFACE_NFCDEP:
gNfcDev.dataExErr = rfalNfcDepGetPduTransceiveStatus();
break;
#endif /* RFAL_FEATURE_NFC_DEP */
/*******************************************************************************/
default:
gNfcDev.dataExErr = ERR_PARAM;
break;
}
#if RFAL_FEATURE_LISTEN_MODE
/*******************************************************************************/
/* If a Sleep request has been received (Listen Mode) go to sleep immediately */
if( gNfcDev.dataExErr == ERR_SLEEP_REQ )
{
EXIT_ON_ERR( gNfcDev.dataExErr, rfalListenSleepStart( RFAL_LM_STATE_SLEEP_A, gNfcDev.rxBuf.rfBuf, sizeof(gNfcDev.rxBuf.rfBuf), &gNfcDev.rxLen ) );
/* If set Sleep was succesfull keep restore the Sleep request signal */
gNfcDev.dataExErr = ERR_SLEEP_REQ;
}
#endif /* RFAL_FEATURE_LISTEN_MODE */
}
return gNfcDev.dataExErr;
}
/*!
******************************************************************************
* \brief Poller Technology Detection
*
* This method implements the Technology Detection / Poll for different
* device technologies.
*
* \return ERR_NONE : Operation completed with no error
* \return ERR_BUSY : Operation ongoing
* \return ERR_XXXX : Error occurred
*
******************************************************************************
*/
static ReturnCode rfalNfcPollTechDetetection( void )
{
ReturnCode err;
err = ERR_NONE;
/* Supress warning when specific RFAL features have been disabled */
NO_WARNING(err);
/*******************************************************************************/
/* AP2P Technology Detection */
/*******************************************************************************/
if( ((gNfcDev.disc.techs2Find & RFAL_NFC_POLL_TECH_AP2P) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_AP2P) != 0U) )
{
#if RFAL_FEATURE_NFC_DEP
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalSetMode( RFAL_MODE_POLL_ACTIVE_P2P, gNfcDev.disc.ap2pBR, gNfcDev.disc.ap2pBR ) );
rfalSetErrorHandling( RFAL_ERRORHANDLING_NFC );
rfalSetFDTListen( RFAL_FDT_LISTEN_AP2P_POLLER );
rfalSetFDTPoll( RFAL_TIMING_NONE );
rfalSetGT( RFAL_GT_AP2P_ADJUSTED );
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* Turns the Field On and starts GT timer */
gNfcDev.isTechInit = true;
}
if( rfalIsGTExpired() ) /* Wait until Guard Time is fulfilled */
{
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_AP2P;
err = rfalNfcNfcDepActivate( gNfcDev.devList, RFAL_NFCDEP_COMM_ACTIVE, NULL, 0 );/* Poll for NFC-A devices */
if( err == ERR_NONE )
{
gNfcDev.techsFound |= RFAL_NFC_POLL_TECH_AP2P;
gNfcDev.devList->type = RFAL_NFC_LISTEN_TYPE_AP2P;
gNfcDev.devList->rfInterface = RFAL_NFC_INTERFACE_NFCDEP;
gNfcDev.devCnt++;
return ERR_NONE;
}
gNfcDev.isTechInit = false;
rfalFieldOff();
}
return ERR_BUSY;
#endif /* RFAL_FEATURE_NFC_DEP */
}
/*******************************************************************************/
/* Passive NFC-A Technology Detection */
/*******************************************************************************/
if( ((gNfcDev.disc.techs2Find & RFAL_NFC_POLL_TECH_A) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_A) != 0U) )
{
#if RFAL_FEATURE_NFCA
rfalNfcaSensRes sensRes;
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcaPollerInitialize() ); /* Initialize RFAL for NFC-A */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* Turns the Field On and starts GT timer */
gNfcDev.isTechInit = true;
}
if( rfalIsGTExpired() ) /* Wait until Guard Time is fulfilled */
{
err = rfalNfcaPollerTechnologyDetection( gNfcDev.disc.compMode, &sensRes );/* Poll for NFC-A devices */
if( err == ERR_NONE )
{
gNfcDev.techsFound |= RFAL_NFC_POLL_TECH_A;
}
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_A;
}
return ERR_BUSY;
#endif /* RFAL_FEATURE_NFCA */
}
/*******************************************************************************/
/* Passive NFC-B Technology Detection */
/*******************************************************************************/
if( ((gNfcDev.disc.techs2Find & RFAL_NFC_POLL_TECH_B) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_B) != 0U) )
{
#if RFAL_FEATURE_NFCB
rfalNfcbSensbRes sensbRes;
uint8_t sensbResLen;
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcbPollerInitialize() ); /* Initialize RFAL for NFC-B */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* As field is already On only starts GT timer */
gNfcDev.isTechInit = true;
}
if( rfalIsGTExpired() ) /* Wait until Guard Time is fulfilled */
{
err = rfalNfcbPollerTechnologyDetection( gNfcDev.disc.compMode, &sensbRes, &sensbResLen ); /* Poll for NFC-B devices */
if( err == ERR_NONE )
{
gNfcDev.techsFound |= RFAL_NFC_POLL_TECH_B;
}
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_B;
}
return ERR_BUSY;
#endif /* RFAL_FEATURE_NFCB */
}
/*******************************************************************************/
/* Passive NFC-F Technology Detection */
/*******************************************************************************/
if( ((gNfcDev.disc.techs2Find & RFAL_NFC_POLL_TECH_F) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_F) != 0U) )
{
#if RFAL_FEATURE_NFCF
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcfPollerInitialize( gNfcDev.disc.nfcfBR ) ); /* Initialize RFAL for NFC-F */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* As field is already On only starts GT timer */
gNfcDev.isTechInit = true;
}
if( rfalIsGTExpired() ) /* Wait until Guard Time is fulfilled */
{
err = rfalNfcfPollerCheckPresence(); /* Poll for NFC-F devices */
if( err == ERR_NONE )
{
gNfcDev.techsFound |= RFAL_NFC_POLL_TECH_F;
}
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_F;
}
return ERR_BUSY;
#endif /* RFAL_FEATURE_NFCF */
}
/*******************************************************************************/
/* Passive NFC-V Technology Detection */
/*******************************************************************************/
if( ((gNfcDev.disc.techs2Find & RFAL_NFC_POLL_TECH_V) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_V) != 0U) )
{
#if RFAL_FEATURE_NFCV
rfalNfcvInventoryRes invRes;
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcvPollerInitialize() ); /* Initialize RFAL for NFC-V */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* As field is already On only starts GT timer */
gNfcDev.isTechInit = true;
}
if( rfalIsGTExpired() ) /* Wait until Guard Time is fulfilled */
{
err = rfalNfcvPollerCheckPresence( &invRes ); /* Poll for NFC-V devices */
if( err == ERR_NONE )
{
gNfcDev.techsFound |= RFAL_NFC_POLL_TECH_V;
}
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_V;
}
return ERR_BUSY;
#endif /* RFAL_FEATURE_NFCV */
}
/*******************************************************************************/
/* Passive Proprietary Technology ST25TB */
/*******************************************************************************/
if( ((gNfcDev.disc.techs2Find & RFAL_NFC_POLL_TECH_ST25TB) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_ST25TB) != 0U) )
{
#if RFAL_FEATURE_ST25TB
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalSt25tbPollerInitialize() ); /* Initialize RFAL for NFC-V */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* As field is already On only starts GT timer */
gNfcDev.isTechInit = true;
}
if( rfalIsGTExpired() ) /* Wait until Guard Time is fulfilled */
{
err = rfalSt25tbPollerCheckPresence( NULL ); /* Poll for ST25TB devices */
if( err == ERR_NONE )
{
gNfcDev.techsFound |= RFAL_NFC_POLL_TECH_ST25TB;
}
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_ST25TB;
}
return ERR_BUSY;
#endif /* RFAL_FEATURE_ST25TB */
}
return ERR_NONE;
}
/*!
******************************************************************************
* \brief Poller Collision Resolution
*
* This method implements the Collision Resolution on all technologies that
* have been detected before.
*
* \return ERR_NONE : Operation completed with no error
* \return ERR_BUSY : Operation ongoing
* \return ERR_XXXX : Error occurred
*
******************************************************************************
*/
static ReturnCode rfalNfcPollCollResolution( void )
{
uint8_t i;
static uint8_t devCnt;
ReturnCode err;
err = ERR_NONE;
i = 0;
/* Supress warning when specific RFAL features have been disabled */
NO_WARNING(err);
NO_WARNING(devCnt);
NO_WARNING(i);
/* Check if device limit has been reached */
if( gNfcDev.devCnt >= gNfcDev.disc.devLimit )
{
return ERR_NONE;
}
/*******************************************************************************/
/* NFC-A Collision Resolution */
/*******************************************************************************/
#if RFAL_FEATURE_NFCA
if( ((gNfcDev.techsFound & RFAL_NFC_POLL_TECH_A) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_A) != 0U) ) /* If a NFC-A device was found/detected, perform Collision Resolution */
{
static rfalNfcaListenDevice nfcaDevList[RFAL_NFC_MAX_DEVICES];
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcaPollerInitialize() ); /* Initialize RFAL for NFC-A */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* Turns the Field On and starts GT timer */
gNfcDev.isTechInit = true; /* Technology has been initialized */
gNfcDev.isOperOngoing = false; /* No operation currently ongoing */
}
if( !rfalIsGTExpired() )
{
return ERR_BUSY;
}
if( !gNfcDev.isOperOngoing )
{
EXIT_ON_ERR( err, rfalNfcaPollerStartFullCollisionResolution( gNfcDev.disc.compMode, (gNfcDev.disc.devLimit - gNfcDev.devCnt), nfcaDevList, &devCnt ) );
gNfcDev.isOperOngoing = true;
return ERR_BUSY;
}
err = rfalNfcaPollerGetFullCollisionResolutionStatus();
if( err != ERR_BUSY )
{
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_A;
if( (err == ERR_NONE) && (devCnt != 0U) )
{
for( i=0; i<devCnt; i++ ) /* Copy devices found form local Nfca list into global device list */
{
gNfcDev.devList[gNfcDev.devCnt].type = RFAL_NFC_LISTEN_TYPE_NFCA;
gNfcDev.devList[gNfcDev.devCnt].dev.nfca = nfcaDevList[i];
gNfcDev.devCnt++;
}
}
}
return ERR_BUSY;
}
#endif /* RFAL_FEATURE_NFCA */
/*******************************************************************************/
/* NFC-B Collision Resolution */
/*******************************************************************************/
#if RFAL_FEATURE_NFCB
if( ((gNfcDev.techsFound & RFAL_NFC_POLL_TECH_B) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_B) != 0U) ) /* If a NFC-B device was found/detected, perform Collision Resolution */
{
rfalNfcbListenDevice nfcbDevList[RFAL_NFC_MAX_DEVICES];
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcbPollerInitialize()); /* Initialize RFAL for NFC-B */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* Ensure GT again as other technologies have also been polled */
gNfcDev.isTechInit = true;
}
if( !rfalIsGTExpired() )
{
return ERR_BUSY;
}
devCnt = 0;
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_B;
err = rfalNfcbPollerCollisionResolution( gNfcDev.disc.compMode, (gNfcDev.disc.devLimit - gNfcDev.devCnt), nfcbDevList, &devCnt );
if( (err == ERR_NONE) && (devCnt != 0U) )
{
for( i=0; i<devCnt; i++ ) /* Copy devices found form local Nfcb list into global device list */
{
gNfcDev.devList[gNfcDev.devCnt].type = RFAL_NFC_LISTEN_TYPE_NFCB;
gNfcDev.devList[gNfcDev.devCnt].dev.nfcb = nfcbDevList[i];
gNfcDev.devCnt++;
}
}
return ERR_BUSY;
}
#endif /* RFAL_FEATURE_NFCB*/
/*******************************************************************************/
/* NFC-F Collision Resolution */
/*******************************************************************************/
#if RFAL_FEATURE_NFCF
if( ((gNfcDev.techsFound & RFAL_NFC_POLL_TECH_F) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_F) != 0U) ) /* If a NFC-F device was found/detected, perform Collision Resolution */
{
rfalNfcfListenDevice nfcfDevList[RFAL_NFC_MAX_DEVICES];
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcfPollerInitialize( gNfcDev.disc.nfcfBR )); /* Initialize RFAL for NFC-F */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* Ensure GT again as other technologies have also been polled */
gNfcDev.isTechInit = true;
}
if( !rfalIsGTExpired() )
{
return ERR_BUSY;
}
devCnt = 0;
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_F;
err = rfalNfcfPollerCollisionResolution( gNfcDev.disc.compMode, (gNfcDev.disc.devLimit - gNfcDev.devCnt), nfcfDevList, &devCnt );
if( (err == ERR_NONE) && (devCnt != 0U) )
{
for( i=0; i<devCnt; i++ ) /* Copy devices found form local Nfcf list into global device list */
{
gNfcDev.devList[gNfcDev.devCnt].type = RFAL_NFC_LISTEN_TYPE_NFCF;
gNfcDev.devList[gNfcDev.devCnt].dev.nfcf = nfcfDevList[i];
gNfcDev.devCnt++;
}
}
return ERR_BUSY;
}
#endif /* RFAL_FEATURE_NFCF */
/*******************************************************************************/
/* NFC-V Collision Resolution */
/*******************************************************************************/
#if RFAL_FEATURE_NFCV
if( ((gNfcDev.techsFound & RFAL_NFC_POLL_TECH_V) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_V) != 0U) ) /* If a NFC-V device was found/detected, perform Collision Resolution */
{
rfalNfcvListenDevice nfcvDevList[RFAL_NFC_MAX_DEVICES];
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalNfcvPollerInitialize()); /* Initialize RFAL for NFC-V */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* Ensure GT again as other technologies have also been polled */
gNfcDev.isTechInit = true;
}
if( !rfalIsGTExpired() )
{
return ERR_BUSY;
}
devCnt = 0;
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_V;
err = rfalNfcvPollerCollisionResolution( RFAL_COMPLIANCE_MODE_NFC, (gNfcDev.disc.devLimit - gNfcDev.devCnt), nfcvDevList, &devCnt );
if( (err == ERR_NONE) && (devCnt != 0U) )
{
for( i=0; i<devCnt; i++ ) /* Copy devices found form local Nfcf list into global device list */
{
gNfcDev.devList[gNfcDev.devCnt].type = RFAL_NFC_LISTEN_TYPE_NFCV;
gNfcDev.devList[gNfcDev.devCnt].dev.nfcv = nfcvDevList[i];
gNfcDev.devCnt++;
}
}
return ERR_BUSY;
}
#endif /* RFAL_FEATURE_NFCV */
/*******************************************************************************/
/* ST25TB Collision Resolution */
/*******************************************************************************/
#if RFAL_FEATURE_ST25TB
if( ((gNfcDev.techsFound & RFAL_NFC_POLL_TECH_ST25TB) != 0U) && ((gNfcDev.techs2do & RFAL_NFC_POLL_TECH_ST25TB) != 0U) ) /* If a ST25TB device was found/detected, perform Collision Resolution */
{
rfalSt25tbListenDevice st25tbDevList[RFAL_NFC_MAX_DEVICES];
if( !gNfcDev.isTechInit )
{
EXIT_ON_ERR( err, rfalSt25tbPollerInitialize() ); /* Initialize RFAL for ST25TB */
EXIT_ON_ERR( err, rfalFieldOnAndStartGT() ); /* Ensure GT again as other technologies have also been polled */
gNfcDev.isTechInit = true;
}
if( !rfalIsGTExpired() )
{
return ERR_BUSY;
}
devCnt = 0;
gNfcDev.isTechInit = false;
gNfcDev.techs2do &= ~RFAL_NFC_POLL_TECH_ST25TB;
err = rfalSt25tbPollerCollisionResolution( (gNfcDev.disc.devLimit - gNfcDev.devCnt), st25tbDevList, &devCnt );
if( (err == ERR_NONE) && (devCnt != 0U) )
{
for( i=0; i<devCnt; i++ ) /* Copy devices found form local Nfcf list into global device list */
{
gNfcDev.devList[gNfcDev.devCnt].type = RFAL_NFC_LISTEN_TYPE_ST25TB;
gNfcDev.devList[gNfcDev.devCnt].dev.st25tb = st25tbDevList[i];
gNfcDev.devCnt++;
}
}
return ERR_BUSY;
}
#endif /* RFAL_FEATURE_ST25TB */
return ERR_NONE; /* All technologies have been performed */
}
/*!
******************************************************************************
* \brief Poller Activation
*
* This method Activates a given device according to it's type and
* protocols supported
*
* \param[in] devIt : device's position on the list to be activated
*
* \return ERR_NONE : Operation completed with no error
* \return ERR_BUSY : Operation ongoing
* \return ERR_XXXX : Error occurred
*
******************************************************************************
*/
static ReturnCode rfalNfcPollActivation( uint8_t devIt )
{
ReturnCode err;
err = ERR_NONE;
/* Supress warning when specific RFAL features have been disabled */
NO_WARNING(err);
if( devIt > gNfcDev.devCnt )
{
return ERR_WRONG_STATE;
}
switch( gNfcDev.devList[devIt].type )
{
/*******************************************************************************/
/* AP2P Activation */
/*******************************************************************************/
#if RFAL_FEATURE_NFC_DEP
case RFAL_NFC_LISTEN_TYPE_AP2P:
/* Activation has already been perfomed (ATR_REQ) */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].proto.nfcDep.activation.Target.ATR_RES.NFCID3;
gNfcDev.devList[devIt].nfcidLen = RFAL_NFCDEP_NFCID3_LEN;
break;
#endif /* RFAL_FEATURE_NFC_DEP */
/*******************************************************************************/
/* Passive NFC-A Activation */
/*******************************************************************************/
#if RFAL_FEATURE_NFCA
case RFAL_NFC_LISTEN_TYPE_NFCA:
if( !gNfcDev.isTechInit )
{
rfalNfcaPollerInitialize();
gNfcDev.isTechInit = true;
gNfcDev.isOperOngoing = false;
return ERR_BUSY;
}
if( gNfcDev.devList[devIt].dev.nfca.isSleep ) /* Check if desired device is in Sleep */
{
rfalNfcaSensRes sensRes;
rfalNfcaSelRes selRes;
if( !gNfcDev.isOperOngoing )
{
/* Wake up all cards */
EXIT_ON_ERR( err, rfalNfcaPollerCheckPresence( RFAL_14443A_SHORTFRAME_CMD_WUPA, &sensRes ) );
gNfcDev.isOperOngoing = true;
}
else
{
/* Select specific device */
EXIT_ON_ERR( err, rfalNfcaPollerSelect( gNfcDev.devList[devIt].dev.nfca.nfcId1, gNfcDev.devList[devIt].dev.nfca.nfcId1Len, &selRes ) );
gNfcDev.devList[devIt].dev.nfca.isSleep = false;
gNfcDev.isOperOngoing = false;
}
return ERR_BUSY;
}
/* Set NFCID */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].dev.nfca.nfcId1;
gNfcDev.devList[devIt].nfcidLen = gNfcDev.devList[devIt].dev.nfca.nfcId1Len;
/*******************************************************************************/
/* Perform protocol specific activation */
switch( gNfcDev.devList[devIt].dev.nfca.type )
{
/*******************************************************************************/
case RFAL_NFCA_T1T:
/* No further activation needed for T1T (RID already performed) */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].dev.nfca.ridRes.uid;
gNfcDev.devList[devIt].nfcidLen = RFAL_T1T_UID_LEN;
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF;
break;
case RFAL_NFCA_T2T:
/* No further activation needed for a T2T */
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF;
break;
/*******************************************************************************/
case RFAL_NFCA_T4T: /* Device supports ISO-DEP */
#if RFAL_FEATURE_ISO_DEP && RFAL_FEATURE_ISO_DEP_POLL
if( !gNfcDev.isOperOngoing )
{
/* Perform ISO-DEP (ISO14443-4) activation: RATS and PPS if supported */
rfalIsoDepInitialize();
EXIT_ON_ERR( err, rfalIsoDepPollAStartActivation( (rfalIsoDepFSxI)RFAL_ISODEP_FSDI_DEFAULT, RFAL_ISODEP_NO_DID, gNfcDev.disc.maxBR, &gNfcDev.devList[devIt].proto.isoDep ) );
gNfcDev.isOperOngoing = true;
return ERR_BUSY;
}
err = rfalIsoDepPollAGetActivationStatus();
if( err != ERR_NONE )
{
return err;
}
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_ISODEP; /* NFC-A T4T device activated */
#else
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF; /* No ISO-DEP supported activate using RF interface */
#endif /* RFAL_FEATURE_ISO_DEP_POLL */
break;
/*******************************************************************************/
case RFAL_NFCA_T4T_NFCDEP: /* Device supports both T4T and NFC-DEP */
case RFAL_NFCA_NFCDEP: /* Device supports NFC-DEP */
#if RFAL_FEATURE_NFC_DEP
/* Perform NFC-DEP (P2P) activation: ATR and PSL if supported */
EXIT_ON_ERR( err, rfalNfcNfcDepActivate( &gNfcDev.devList[devIt], RFAL_NFCDEP_COMM_PASSIVE, NULL, 0 ) );
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].proto.nfcDep.activation.Target.ATR_RES.NFCID3;
gNfcDev.devList[devIt].nfcidLen = RFAL_NFCDEP_NFCID3_LEN;
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_NFCDEP; /* NFC-A P2P device activated */
#else
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF; /* No NFC-DEP supported activate using RF interface */
#endif /* RFAL_FEATURE_NFC_DEP */
break;
/*******************************************************************************/
default:
return ERR_WRONG_STATE;
}
break;
#endif /* RFAL_FEATURE_NFCA */
/*******************************************************************************/
/* Passive NFC-B Activation */
/*******************************************************************************/
#if RFAL_FEATURE_NFCB
case RFAL_NFC_LISTEN_TYPE_NFCB:
if( !gNfcDev.isTechInit )
{
rfalNfcbPollerInitialize();
gNfcDev.isTechInit = true;
gNfcDev.isOperOngoing = false;
return ERR_BUSY;
}
if( gNfcDev.devList[devIt].dev.nfcb.isSleep ) /* Check if desired device is in Sleep */
{
rfalNfcbSensbRes sensbRes;
uint8_t sensbResLen;
/* Wake up all cards. SENSB_RES may return collision but the NFCID0 is available to explicitly select NFC-B card via ATTRIB; so error will be ignored here */
rfalNfcbPollerCheckPresence( RFAL_NFCB_SENS_CMD_ALLB_REQ, RFAL_NFCB_SLOT_NUM_1, &sensbRes, &sensbResLen );
}
/* Set NFCID */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].dev.nfcb.sensbRes.nfcid0;
gNfcDev.devList[devIt].nfcidLen = RFAL_NFCB_NFCID0_LEN;
#if RFAL_FEATURE_ISO_DEP && RFAL_FEATURE_ISO_DEP_POLL
/* Check if device supports ISO-DEP (ISO14443-4) */
if( (gNfcDev.devList[devIt].dev.nfcb.sensbRes.protInfo.FsciProType & RFAL_NFCB_SENSB_RES_PROTO_ISO_MASK) != 0U )
{
if( !gNfcDev.isOperOngoing )
{
rfalIsoDepInitialize();
/* Perform ISO-DEP (ISO14443-4) activation: ATTRIB */
EXIT_ON_ERR( err, rfalIsoDepPollBStartActivation( (rfalIsoDepFSxI)RFAL_ISODEP_FSDI_DEFAULT, RFAL_ISODEP_NO_DID, gNfcDev.disc.maxBR, 0x00, &gNfcDev.devList[devIt].dev.nfcb, NULL, 0, &gNfcDev.devList[devIt].proto.isoDep ) );
gNfcDev.isOperOngoing = true;
return ERR_BUSY;
}
err = rfalIsoDepPollBGetActivationStatus();
if( err != ERR_NONE )
{
return err;
}
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_ISODEP; /* NFC-B T4T device activated */
break;
}
#endif /* RFAL_FEATURE_ISO_DEP_POLL */
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF; /* NFC-B device activated */
break;
#endif /* RFAL_FEATURE_NFCB */
/*******************************************************************************/
/* Passive NFC-F Activation */
/*******************************************************************************/
#if RFAL_FEATURE_NFCF
case RFAL_NFC_LISTEN_TYPE_NFCF:
rfalNfcfPollerInitialize( gNfcDev.disc.nfcfBR );
#if RFAL_FEATURE_NFC_DEP
if( rfalNfcfIsNfcDepSupported( &gNfcDev.devList[devIt].dev.nfcf ) )
{
/* Perform NFC-DEP (P2P) activation: ATR and PSL if supported */
EXIT_ON_ERR( err, rfalNfcNfcDepActivate( &gNfcDev.devList[devIt], RFAL_NFCDEP_COMM_PASSIVE, NULL, 0 ) );
/* Set NFCID */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].proto.nfcDep.activation.Target.ATR_RES.NFCID3;
gNfcDev.devList[devIt].nfcidLen = RFAL_NFCDEP_NFCID3_LEN;
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_NFCDEP; /* NFC-F P2P device activated */
break;
}
#endif /* RFAL_FEATURE_NFC_DEP */
/* Set NFCID */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].dev.nfcf.sensfRes.NFCID2;
gNfcDev.devList[devIt].nfcidLen = RFAL_NFCF_NFCID2_LEN;
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF; /* NFC-F T3T device activated */
break;
#endif /* RFAL_FEATURE_NFCF */
/*******************************************************************************/
/* Passive NFC-V Activation */
/*******************************************************************************/
#if RFAL_FEATURE_NFCV
case RFAL_NFC_LISTEN_TYPE_NFCV:
rfalNfcvPollerInitialize();
/* No specific activation needed for a T5T */
/* Set NFCID */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].dev.nfcv.InvRes.UID;
gNfcDev.devList[devIt].nfcidLen = RFAL_NFCV_UID_LEN;
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF; /* NFC-V T5T device activated */
break;
#endif /* RFAL_FEATURE_NFCV */
/*******************************************************************************/
/* Passive ST25TB Activation */
/*******************************************************************************/
#if RFAL_FEATURE_ST25TB
case RFAL_NFC_LISTEN_TYPE_ST25TB:
rfalSt25tbPollerInitialize();
/* No specific activation needed for a ST25TB */
/* Set NFCID */
gNfcDev.devList[devIt].nfcid = gNfcDev.devList[devIt].dev.st25tb.UID;
gNfcDev.devList[devIt].nfcidLen = RFAL_ST25TB_UID_LEN;
gNfcDev.devList[devIt].rfInterface = RFAL_NFC_INTERFACE_RF; /* ST25TB device activated */
break;
#endif /* RFAL_FEATURE_ST25TB */
/*******************************************************************************/
default:
return ERR_WRONG_STATE;
}
gNfcDev.activeDev = &gNfcDev.devList[devIt]; /* Assign active device to be used further on */
return ERR_NONE;
}
/*!
******************************************************************************
* \brief Listener Activation
*
* This method handles the listen mode Activation according to the different
* protocols the Reader/Initiator performs
*
* \return ERR_NONE : Operation completed with no error
* \return ERR_BUSY : Operation ongoing
* \return ERR_PROTO : Unexpected frame received
* \return ERR_XXXX : Error occurred
*
******************************************************************************
*/
#if RFAL_FEATURE_LISTEN_MODE
static ReturnCode rfalNfcListenActivation( void )
{
bool isDataRcvd;
ReturnCode ret;
rfalLmState lmSt;
rfalBitRate bitRate;
#if RFAL_FEATURE_NFC_DEP
uint8_t hdrLen;
/* Set the header length in NFC-A */
hdrLen = (RFAL_NFCDEP_SB_LEN + RFAL_NFCDEP_LEN_LEN);
#endif /* RFAL_FEATURE_NFC_DEP */
lmSt = rfalListenGetState( &isDataRcvd, &bitRate );
switch(lmSt)
{
#if RFAL_FEATURE_NFCA
/*******************************************************************************/
case RFAL_LM_STATE_ACTIVE_A: /* NFC-A CE activation */
case RFAL_LM_STATE_ACTIVE_Ax:
if( isDataRcvd ) /* Check if Reader/Initator has sent some data */
{
/* Check if received data is a Sleep request */
if( rfalNfcaListenerIsSleepReq( gNfcDev.rxBuf.rfBuf, rfalConvBitsToBytes(gNfcDev.rxLen)) ) /* Check if received data is a SLP_REQ */
{
/* Set the Listen Mode in Sleep state */
EXIT_ON_ERR( ret, rfalListenSleepStart( RFAL_LM_STATE_SLEEP_A, gNfcDev.rxBuf.rfBuf, sizeof(gNfcDev.rxBuf.rfBuf), &gNfcDev.rxLen ) );
}
#if RFAL_FEATURE_ISO_DEP && RFAL_FEATURE_ISO_DEP_LISTEN
/* Check if received data is a valid RATS */
else if( rfalIsoDepIsRats( gNfcDev.rxBuf.rfBuf, (uint8_t)rfalConvBitsToBytes(gNfcDev.rxLen) ) )
{
rfalIsoDepAtsParam atsParam;
rfalIsoDepListenActvParam rxParam;
/* Set ATS parameters */
atsParam.fsci = (uint8_t)RFAL_ISODEP_DEFAULT_FSCI;
atsParam.fwi = RFAL_ISODEP_DEFAULT_FWI;
atsParam.sfgi = RFAL_ISODEP_DEFAULT_SFGI;
atsParam.didSupport = false;
atsParam.ta = RFAL_ISODEP_ATS_TA_SAME_D;
atsParam.hb = NULL;
atsParam.hbLen = 0;
/* Set Rx parameters */
rxParam.rxBuf = (rfalIsoDepBufFormat*) &gNfcDev.rxBuf.isoDepBuf; /* PRQA S 0310 # MISRA 11.3 - Intentional safe cast to avoiding large buffer duplication */
rxParam.rxLen = &gNfcDev.rxLen;
rxParam.isoDepDev = &gNfcDev.devList->proto.isoDep;
rxParam.isRxChaining = &gNfcDev.isRxChaining;
rfalListenSetState( RFAL_LM_STATE_CARDEMU_4A ); /* Set next state CE T4T */
rfalIsoDepInitialize(); /* Initialize ISO-DEP layer to handle ISO14443-a activation / RATS */
/* Set ISO-DEP layer to digest RATS and handle activation */
EXIT_ON_ERR( ret, rfalIsoDepListenStartActivation( &atsParam, NULL, gNfcDev.rxBuf.rfBuf, gNfcDev.rxLen, rxParam ) );
}
#endif /* RFAL_FEATURE_ISO_DEP_LISTEN */
#if RFAL_FEATURE_NFC_DEP
/* Check if received data is a valid ATR_REQ */
else if( rfalNfcDepIsAtrReq( &gNfcDev.rxBuf.rfBuf[hdrLen], (rfalConvBitsToBytes(gNfcDev.rxLen) - hdrLen), gNfcDev.devList->nfcid ) )
{
gNfcDev.devList->type = RFAL_NFC_POLL_TYPE_NFCA;
EXIT_ON_ERR( ret, rfalNfcNfcDepActivate( gNfcDev.devList, RFAL_NFCDEP_COMM_PASSIVE, &gNfcDev.rxBuf.rfBuf[hdrLen], (rfalConvBitsToBytes(gNfcDev.rxLen) - hdrLen) ) );
}
#endif /* RFAL_FEATURE_NFC_DEP */
else
{
return ERR_PROTO;
}
}
return ERR_BUSY;
#endif /* RFAL_FEATURE_NFCA */
#if RFAL_FEATURE_ISO_DEP && RFAL_FEATURE_ISO_DEP_LISTEN
/*******************************************************************************/
case RFAL_LM_STATE_CARDEMU_4A: /* T4T ISO-DEP activation */
ret = rfalIsoDepListenGetActivationStatus();
if( ret == ERR_NONE )
{
gNfcDev.devList->type = RFAL_NFC_POLL_TYPE_NFCA;
gNfcDev.devList->rfInterface = RFAL_NFC_INTERFACE_ISODEP;
gNfcDev.devList->nfcid = NULL;
gNfcDev.devList->nfcidLen = 0;
}
return ret;
#endif /* RFAL_FEATURE_ISO_DEP_LISTEN */
/*******************************************************************************/
case RFAL_LM_STATE_READY_F: /* NFC-F CE activation */
if( isDataRcvd ) /* Wait for the first received data */
{
#if RFAL_FEATURE_NFC_DEP
/* Set the header length in NFC-F */
hdrLen = RFAL_NFCDEP_LEN_LEN;
if( rfalNfcDepIsAtrReq( &gNfcDev.rxBuf.rfBuf[hdrLen], (rfalConvBitsToBytes(gNfcDev.rxLen) - hdrLen), gNfcDev.devList->nfcid ) )
{
gNfcDev.devList->type = RFAL_NFC_POLL_TYPE_NFCF;
EXIT_ON_ERR( ret, rfalNfcNfcDepActivate( gNfcDev.devList, RFAL_NFCDEP_COMM_PASSIVE, &gNfcDev.rxBuf.rfBuf[hdrLen], (rfalConvBitsToBytes(gNfcDev.rxLen) - hdrLen) ) );
}
else
#endif /* RFAL_FEATURE_NFC_DEP */
{
rfalListenSetState( RFAL_LM_STATE_CARDEMU_3 ); /* First data already received - set T3T CE */
}
}
return ERR_BUSY;
/*******************************************************************************/
case RFAL_LM_STATE_CARDEMU_3: /* T3T activated */
gNfcDev.devList->type = RFAL_NFC_POLL_TYPE_NFCF;
gNfcDev.devList->rfInterface = RFAL_NFC_INTERFACE_RF;
gNfcDev.devList->nfcid = NULL;
gNfcDev.devList->nfcidLen = 0;
return ERR_NONE;
#if RFAL_FEATURE_NFC_DEP
/*******************************************************************************/
case RFAL_LM_STATE_TARGET_A: /* NFC-DEP activation */
case RFAL_LM_STATE_TARGET_F:
ret = rfalNfcDepListenGetActivationStatus();
if( ret == ERR_NONE )
{
gNfcDev.devList->rfInterface = RFAL_NFC_INTERFACE_NFCDEP;
gNfcDev.devList->nfcidLen = RFAL_NFCDEP_NFCID3_LEN;
}
return ret;
#endif /* RFAL_FEATURE_NFC_DEP */
/*******************************************************************************/
case RFAL_LM_STATE_IDLE: /* AP2P activation */
if( isDataRcvd ) /* Check if Reader/Initator has sent some data */
{
if( (gNfcDev.lmMask & RFAL_LM_MASK_ACTIVE_P2P) != 0U ) /* Check if AP2P is enabled */
{
#if RFAL_FEATURE_NFC_DEP
/* Calculate the header length in NFC-A or NFC-F mode*/
hdrLen = ( (bitRate == RFAL_BR_106) ? (RFAL_NFCDEP_SB_LEN + RFAL_NFCDEP_LEN_LEN) : RFAL_NFCDEP_LEN_LEN );
if( rfalNfcDepIsAtrReq( &gNfcDev.rxBuf.rfBuf[hdrLen], (rfalConvBitsToBytes(gNfcDev.rxLen) - hdrLen), NULL) )
{
gNfcDev.devList->type = RFAL_NFC_POLL_TYPE_AP2P;
rfalSetMode( (RFAL_MODE_LISTEN_ACTIVE_P2P), bitRate, bitRate );
EXIT_ON_ERR( ret, rfalNfcNfcDepActivate( gNfcDev.devList, RFAL_NFCDEP_COMM_ACTIVE, &gNfcDev.rxBuf.rfBuf[hdrLen], (rfalConvBitsToBytes(gNfcDev.rxLen) - hdrLen) ) );
}
else
#endif /* RFAL_FEATURE_NFC_DEP */
{
return ERR_PROTO;
}
}
}
return ERR_BUSY;
/*******************************************************************************/
case RFAL_LM_STATE_READY_A:
case RFAL_LM_STATE_READY_Ax:
case RFAL_LM_STATE_SLEEP_A:
case RFAL_LM_STATE_SLEEP_AF:
return ERR_BUSY;
/*******************************************************************************/
case RFAL_LM_STATE_POWER_OFF:
return ERR_LINK_LOSS;
default: /* Wait for activation */
break;
}
return ERR_INTERNAL;
}
#endif /* RFAL_FEATURE_LISTEN_MODE */
/*!
******************************************************************************
* \brief Poller NFC DEP Activate
*
* This method performs NFC-DEP Activation
*
* \param[in] device : device info
* \param[in] commMode : communication mode (Passive/Active)
* \param[in] atrReq : received ATR_REQ
* \param[in] atrReqLen : received ATR_REQ size
*
* \return ERR_NONE : Operation completed with no error
* \return ERR_BUSY : Operation ongoing
* \return ERR_XXXX : Error occurred
*
******************************************************************************
*/
#if RFAL_FEATURE_NFC_DEP
static ReturnCode rfalNfcNfcDepActivate( rfalNfcDevice *device, rfalNfcDepCommMode commMode, const uint8_t *atrReq, uint16_t atrReqLen )
{
rfalNfcDepAtrParam initParam;
/* Supress warnings if Listen mode is disabled */
NO_WARNING(atrReq);
NO_WARNING(atrReqLen);
/* If we are in Poll mode */
if( rfalNfcIsRemDevListener( device->type ) )
{
/*******************************************************************************/
/* If Passive F use the NFCID2 retrieved from SENSF */
if( device->type == RFAL_NFC_LISTEN_TYPE_NFCF )
{
initParam.nfcid = device->dev.nfcf.sensfRes.NFCID2;
initParam.nfcidLen = RFAL_NFCF_NFCID2_LEN;
}
else
{
initParam.nfcid = gNfcDev.disc.nfcid3;
initParam.nfcidLen = RFAL_NFCDEP_NFCID3_LEN;
}
initParam.BS = RFAL_NFCDEP_Bx_NO_HIGH_BR;
initParam.BR = RFAL_NFCDEP_Bx_NO_HIGH_BR;
initParam.DID = RFAL_NFCDEP_DID_NO;
initParam.NAD = RFAL_NFCDEP_NAD_NO;
initParam.LR = RFAL_NFCDEP_LR_254;
initParam.GB = gNfcDev.disc.GB;
initParam.GBLen = gNfcDev.disc.GBLen;
initParam.commMode = commMode;
initParam.operParam = (RFAL_NFCDEP_OPER_FULL_MI_EN | RFAL_NFCDEP_OPER_EMPTY_DEP_DIS | RFAL_NFCDEP_OPER_ATN_EN | RFAL_NFCDEP_OPER_RTOX_REQ_EN);
rfalNfcDepInitialize();
/* Perform NFC-DEP (P2P) activation: ATR and PSL if supported */
return rfalNfcDepInitiatorHandleActivation( &initParam, gNfcDev.disc.maxBR, &device->proto.nfcDep );
}
/* If we are in Listen mode */
#if RFAL_FEATURE_LISTEN_MODE
else if( rfalNfcIsRemDevPoller( device->type ) )
{
rfalNfcDepListenActvParam actvParams;
rfalNfcDepTargetParam targetParam;
ST_MEMCPY(targetParam.nfcid3, (uint8_t*)gNfcDev.disc.nfcid3, RFAL_NFCDEP_NFCID3_LEN);
targetParam.bst = RFAL_NFCDEP_Bx_NO_HIGH_BR;
targetParam.brt = RFAL_NFCDEP_Bx_NO_HIGH_BR;
targetParam.to = RFAL_NFCDEP_WT_TRG_MAX_L13; /* [LLCP] 1.3 6.2.1 */
targetParam.ppt = rfalNfcDepLR2PP(RFAL_NFCDEP_LR_254);
if( gNfcDev.disc.GBLen >= RFAL_NFCDEP_GB_MAX_LEN )
{
return ERR_PARAM;
}
targetParam.GBtLen = gNfcDev.disc.GBLen;
if( gNfcDev.disc.GBLen > 0U )
{
ST_MEMCPY(targetParam.GBt, gNfcDev.disc.GB, gNfcDev.disc.GBLen);
}
targetParam.operParam = (RFAL_NFCDEP_OPER_FULL_MI_EN | RFAL_NFCDEP_OPER_EMPTY_DEP_DIS | RFAL_NFCDEP_OPER_ATN_EN | RFAL_NFCDEP_OPER_RTOX_REQ_EN);
targetParam.commMode = commMode;
/* Set activation buffer (including header) for NFC-DEP */
actvParams.rxBuf = (rfalNfcDepBufFormat*) &gNfcDev.rxBuf.nfcDepBuf; /* PRQA S 0310 # MISRA 11.3 - Intentional safe cast to avoiding large buffer duplication */
actvParams.rxLen = &gNfcDev.rxLen;
actvParams.isRxChaining = &gNfcDev.isRxChaining;
actvParams.nfcDepDev = &gNfcDev.devList->proto.nfcDep;
rfalListenSetState( ((device->type == RFAL_NFC_POLL_TYPE_NFCA) ? RFAL_LM_STATE_TARGET_A : RFAL_LM_STATE_TARGET_F) );
rfalNfcDepInitialize();
/* Perform NFC-DEP (P2P) activation: send ATR_RES and handle activation */
return rfalNfcDepListenStartActivation( &targetParam, atrReq, atrReqLen, actvParams );
}
#endif /* RFAL_FEATURE_LISTEN_MODE */
else
{
return ERR_INTERNAL;
}
}
#endif /* RFAL_FEATURE_NFC_DEP */
/*!
******************************************************************************
* \brief Poller NFC Deactivate
*
* This method Deactivates the device if a deactivation procedure exists
*
* \return ERR_NONE : Operation completed with no error
* \return ERR_BUSY : Operation ongoing
* \return ERR_XXXX : Error occurred
*
******************************************************************************
*/
static ReturnCode rfalNfcDeactivation( void )
{
/* Check if a device has been activated */
if( gNfcDev.activeDev != NULL )
{
if( rfalNfcIsRemDevListener( gNfcDev.activeDev->type ) ) /* Listen mode no additional deactivation to be performed*/
{
#ifndef RFAL_NFC_SKIP_DEACT
switch( gNfcDev.activeDev->rfInterface )
{
/*******************************************************************************/
case RFAL_NFC_INTERFACE_RF:
break; /* No specific deactivation to be performed */
/*******************************************************************************/
#if RFAL_FEATURE_ISO_DEP && RFAL_FEATURE_ISO_DEP_POLL
case RFAL_NFC_INTERFACE_ISODEP:
rfalIsoDepDeselect(); /* Send a Deselect to device */
break;
#endif /* RFAL_FEATURE_ISO_DEP_POLL */
/*******************************************************************************/
#if RFAL_FEATURE_NFC_DEP
case RFAL_NFC_INTERFACE_NFCDEP:
switch ( gNfcDev.activeDev->type )
{
case RFAL_NFC_LISTEN_TYPE_AP2P:
rfalNfcDepRLS(); /* Send a Release to device */
break;
default:
rfalNfcDepDSL(); /* Send a Deselect to device */
break;
}
break;
#endif /* RFAL_FEATURE_NFC_DEP */
default:
return ERR_REQUEST;
}
#endif /* RFAL_NFC_SKIP_DEACT */
}
}
#if RFAL_FEATURE_WAKEUP_MODE
rfalWakeUpModeStop();
#endif /* RFAL_FEATURE_WAKEUP_MODE */
#if RFAL_FEATURE_LISTEN_MODE
rfalListenStop();
#else
rfalFieldOff();
#endif
gNfcDev.activeDev = NULL;
return ERR_NONE;
}
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