Diff: rfal_nfcb.cpp

Revision:

0:75fc82583a41

diff -r 000000000000 -r 75fc82583a41 rfal_nfcb.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rfal_nfcb.cpp	Thu Nov 14 14:34:50 2019 +0000
@@ -0,0 +1,502 @@
+
+/******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
+  *
+  * Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (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.st.com/myliberty
+  *
+  * 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,
+  * AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+  * FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+******************************************************************************/
+
+/*
+ *      PROJECT:   ST25R391x firmware
+ *      $Revision: $
+ *      LANGUAGE:  ISO C99
+ */
+
+/*! \file rfal_nfcb.c
+ *
+ *  \author Gustavo Patricio
+ *
+ *  \brief Implementation of NFC-B (ISO14443B) helpers 
+ *
+ */
+
+/*
+ ******************************************************************************
+ * INCLUDES
+ ******************************************************************************
+ */
+#include <platform1.h>
+#include "rfal_nfcb.h"
+#include "utils.h"
+
+
+/*
+ ******************************************************************************
+ * ENABLE SWITCH
+ ******************************************************************************
+ */
+
+#ifndef RFAL_FEATURE_NFCB
+    #error " RFAL: Module configuration missing. Please enable/disable NFC-B module by setting: RFAL_FEATURE_NFCB "
+#endif
+
+#if RFAL_FEATURE_NFCB
+
+/*
+ ******************************************************************************
+ * GLOBAL DEFINES
+ ******************************************************************************
+ */
+
+#define RFAL_NFCB_SENSB_REQ_EXT_SENSB_RES_SUPPORTED  0x10 /*!< Bit mask for Extended SensB Response support in SENSB_REQ */
+#define RFAL_NFCB_SENSB_RES_PROT_TYPE_RFU            0x08 /*!< Bit mask for Protocol Type RFU in SENSB_RES */
+#define RFAL_NFCB_SLOT_MARKER_SC_SHIFT               4    /*!< Slot Code position on SLOT_MARKER APn                     */
+
+#define RFAL_NFCB_SLOTMARKER_SLOTCODE_MIN            1    /*!< SLOT_MARKER Slot Code minimum   Digital 1.1  Table 37 */ 
+#define RFAL_NFCB_SLOTMARKER_SLOTCODE_MAX            16   /*!< SLOT_MARKER Slot Code maximum   Digital 1.1  Table 37 */
+
+#define RFAL_NFCB_ACTIVATION_FWT                    (RFAL_NFCB_FWTSENSB + RFAL_NFCB_DFWT_10)  /*!< FWT(SENSB) + dFWT  Digital 1.1  7.9.1.5  */
+
+/*! Advanced and Extended bit mask in Parameter of SENSB_REQ */
+#define RFAL_NFCB_SENSB_REQ_PARAM                   (RFAL_NFCB_SENSB_REQ_ADV_FEATURE | RFAL_NFCB_SENSB_REQ_EXT_SENSB_RES_SUPPORTED)
+
+
+/*! NFC-B commands definition */
+static enum
+{
+    RFAL_NFCB_CMD_SENSB_REQ = 0x05,   /*!< SENSB_REQ (REQB) & SLOT_MARKER  Digital 1.1 Table 24 */
+    RFAL_NFCB_CMD_SENSB_RES = 0x50,   /*!< SENSB_RES (ATQB) & SLOT_MARKER  Digital 1.1 Table 27 */
+    RFAL_NFCB_CMD_SLPB_REQ  = 0x50,   /*!< SLPB_REQ (HLTB command)  Digital 1.1 Table 38        */
+    RFAL_NFCB_CMD_SLPB_RES  = 0x00    /*!< SLPB_RES (HLTB Answer)   Digital 1.1 Table 39        */
+}rfalCmd;
+
+/*
+ ******************************************************************************
+ * GLOBAL MACROS
+ ******************************************************************************
+ */
+
+#define rfalNfcbNI2NumberOfSlots( ni )  (1 << ni)            /*!< Converts the Number of slots Identifier to slot number*/
+
+/*
+******************************************************************************
+* GLOBAL TYPES
+******************************************************************************
+*/
+
+/*! ALLB_REQ (WUPB) and SENSB_REQ (REQB) Command Format   Digital 1.1  7.6.1 */
+typedef struct
+{
+    uint8_t  cmd;                            /*!< xxxxB_REQ: 05h       */
+    uint8_t  AFI;                            /*!< NFC Identifier       */
+    uint8_t  PARAM;                          /*!< Application Data     */
+} rfalNfcbSensbReq;
+
+/*! SLOT_MARKER Command format  Digital 1.1  7.7.1 */
+typedef struct
+{
+    uint8_t  APn;    /*!< Slot number 2..16 | 0101b */
+} rfalNfcbSlotMarker;
+
+/*! SLPB_REQ (HLTB) Command Format   Digital 1.1  7.8.1 */
+typedef struct
+{
+    uint8_t  cmd;                            /*!< SLPB_REQ: 50h        */
+    uint8_t  nfcid0[RFAL_NFCB_NFCID0_LEN];   /*!< NFC Identifier (PUPI)*/
+} rfalNfcbSlpbReq;
+
+
+/*! SLPB_RES (HLTB) Response Format   Digital 1.1  7.8.2 */
+typedef struct
+{
+    uint8_t  cmd;                            /*!< SLPB_RES: 00h        */
+} rfalNfcbSlpbRes;
+
+
+/*! RFAL NFC-B instance */
+typedef struct
+{
+    uint8_t  AFI;                            /*!< AFI to be used       */
+    uint8_t  PARAM;                          /*!< PARAM to be used     */
+} rfalNfcb;
+
+/*
+******************************************************************************
+* LOCAL FUNCTION PROTOTYPES
+******************************************************************************
+*/
+static ReturnCode rfalNfcbCheckSensbRes( rfalNfcbSensbRes *sensbRes, uint8_t sensbResLen );
+
+
+/*
+******************************************************************************
+* LOCAL VARIABLES
+******************************************************************************
+*/
+/*! TR2 Table according to Digital 1.1 Table 33 */
+static const uint16_t rfalNfcbTr2Table[] = { 1792, 3328, 5376, 9472 };
+
+rfalNfcb gRfalNfcb; /*!< RFAL NFC-B Instance */
+
+
+/*
+******************************************************************************
+* LOCAL FUNCTIONS
+******************************************************************************
+*/
+
+/*******************************************************************************/
+static ReturnCode rfalNfcbCheckSensbRes( rfalNfcbSensbRes *sensbRes, uint8_t sensbResLen )
+{
+    /* Check response length */
+    if( ( (sensbResLen != RFAL_NFCB_SENSB_RES_LEN) && (sensbResLen != RFAL_NFCB_SENSB_RES_EXT_LEN) ) )
+    {
+        return ERR_PROTO;
+    }
+    
+    /* Check SENSB_RES and Protocol Type   Digital 1.1 7.6.2.19 */
+    if( (sensbRes->protInfo.FsciProType & RFAL_NFCB_SENSB_RES_PROT_TYPE_RFU) || (sensbRes->cmd != RFAL_NFCB_CMD_SENSB_RES) )
+    {
+        return ERR_PROTO;
+    }
+    return ERR_NONE;
+}
+
+/*
+******************************************************************************
+* GLOBAL FUNCTIONS
+******************************************************************************
+*/
+
+/*******************************************************************************/
+ReturnCode rfalNfcbPollerInitialize( SPI*  mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+    ReturnCode ret;
+    
+    EXIT_ON_ERR( ret, rfalSetMode( RFAL_MODE_POLL_NFCB, RFAL_BR_106, RFAL_BR_106, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 )  );
+    rfalSetErrorHandling( RFAL_ERRORHANDLING_NFC );
+    
+    rfalSetGT( RFAL_GT_NFCB );
+    rfalSetFDTListen( RFAL_FDT_LISTEN_NFCB_POLLER );
+    rfalSetFDTPoll( RFAL_FDT_POLL_NFCB_POLLER );
+    
+    gRfalNfcb.AFI    = RFAL_NFCB_AFI;
+    gRfalNfcb.PARAM  = RFAL_NFCB_PARAM;
+    
+    return ERR_NONE;
+}
+
+/*******************************************************************************/
+ReturnCode rfalNfcbPollerInitializeWithParams( uint8_t AFI, uint8_t PARAM, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+    ReturnCode ret;
+        
+    EXIT_ON_ERR( ret, rfalNfcbPollerInitialize( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 )  );
+    
+    gRfalNfcb.AFI   = AFI;
+    gRfalNfcb.PARAM = (PARAM & RFAL_NFCB_SENSB_REQ_PARAM);
+    
+    return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalNfcbPollerCheckPresence( rfalNfcbSensCmd cmd, rfalNfcbSlots slots, rfalNfcbSensbRes *sensbRes, uint8_t *sensbResLen, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+    uint16_t         rxLen;
+    ReturnCode       ret;
+    rfalNfcbSensbReq sensbReq;
+    
+
+    /* Check if the command requested and given the slot number are valid */
+    if( ((RFAL_NFCB_SENS_CMD_SENSB_REQ != cmd) && (RFAL_NFCB_SENS_CMD_ALLB_REQ != cmd)) ||
+        (slots > RFAL_NFCB_SLOT_NUM_16) || (sensbRes == NULL) || (sensbResLen == NULL)    )
+    {
+        return ERR_PARAM;
+    }
+    
+    *sensbResLen = 0;
+    ST_MEMSET(sensbRes, 0x00, sizeof(rfalNfcbSensbRes) );
+    
+    /* Compute SENSB_REQ */
+    sensbReq.cmd   = RFAL_NFCB_CMD_SENSB_REQ;
+    sensbReq.AFI   = gRfalNfcb.AFI;
+    sensbReq.PARAM = ((gRfalNfcb.PARAM & RFAL_NFCB_SENSB_REQ_PARAM) | cmd | slots);
+    
+    /* Send SENSB_REQ and disable AGC to detect collisions */
+    ret = rfalTransceiveBlockingTxRx( (uint8_t*)&sensbReq, sizeof(rfalNfcbSensbReq), (uint8_t*)sensbRes, sizeof(rfalNfcbSensbRes), &rxLen, RFAL_TXRX_FLAGS_DEFAULT, RFAL_NFCB_FWTSENSB, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+    *sensbResLen = rxLen;
+    
+    /*  Check if a transmission error was detected */
+    if( (ret == ERR_CRC) || (ret == ERR_FRAMING) )
+    {
+        /* Invalidate received frame as an error was detected (CollisionResolution checks if valid) */
+        *sensbResLen = 0;
+        return ERR_NONE;
+    }
+    
+    if( ret == ERR_NONE )
+    {
+        return rfalNfcbCheckSensbRes( sensbRes, *sensbResLen );
+    }
+    
+    return ret;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalNfcbPollerSleep( uint8_t* nfcid0, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+    uint16_t        rxLen;
+    ReturnCode      ret;
+    rfalNfcbSlpbReq slpbReq;
+    rfalNfcbSlpbRes slpbRes;
+    
+    if( nfcid0 == NULL )
+    {
+        return ERR_PARAM;
+    }
+    
+    /* Compute SLPB_REQ */
+    slpbReq.cmd = RFAL_NFCB_CMD_SLPB_REQ;
+    ST_MEMCPY( slpbReq.nfcid0, nfcid0, RFAL_NFCB_NFCID0_LEN );
+    
+    EXIT_ON_ERR( ret, rfalTransceiveBlockingTxRx( (uint8_t*)&slpbReq, sizeof(rfalNfcbSlpbReq), (uint8_t*)&slpbRes, sizeof(rfalNfcbSlpbRes), &rxLen, RFAL_TXRX_FLAGS_DEFAULT, RFAL_NFCB_ACTIVATION_FWT, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) );
+    
+    /* Check SLPB_RES */
+    if( (rxLen != sizeof(rfalNfcbSlpbRes)) || (slpbRes.cmd != RFAL_NFCB_CMD_SLPB_RES) )
+    {
+        return ERR_PROTO;
+    }
+    return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalNfcbPollerSlotMarker( uint8_t slotCode, rfalNfcbSensbRes *sensbRes, uint8_t *sensbResLen, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+    ReturnCode         ret;
+    rfalNfcbSlotMarker slotMarker;
+    uint16_t           rxLen;
+    
+    /* Check parameters */
+    if( (sensbRes == NULL) || (sensbResLen == NULL)    || 
+        (slotCode < RFAL_NFCB_SLOTMARKER_SLOTCODE_MIN) || 
+        (slotCode > RFAL_NFCB_SLOTMARKER_SLOTCODE_MAX)   )
+    {
+        return ERR_PARAM;
+    }
+    /* Compose and send SLOT_MARKER with disabled AGC to detect collisions  */
+    slotMarker.APn = ((slotCode << RFAL_NFCB_SLOT_MARKER_SC_SHIFT) | RFAL_NFCB_CMD_SENSB_REQ);
+    
+    ret = rfalTransceiveBlockingTxRx( (uint8_t*)&slotMarker, sizeof(rfalNfcbSlotMarker), (uint8_t*)sensbRes, sizeof(rfalNfcbSensbRes), &rxLen, RFAL_TXRX_FLAGS_DEFAULT, RFAL_NFCB_ACTIVATION_FWT, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+    *sensbResLen = rxLen;
+    
+    /* Check if a transmission error was detected */
+    if( (ret == ERR_CRC) || (ret == ERR_FRAMING) )
+    {
+        return ERR_RF_COLLISION;
+    }
+    
+    if( ret == ERR_NONE )
+    {
+        return rfalNfcbCheckSensbRes( sensbRes, *sensbResLen );
+    }
+    
+    return ret;
+}
+
+
+ReturnCode rfalNfcbPollerTechnologyDetection( rfalComplianceMode compMode, rfalNfcbSensbRes *sensbRes, uint8_t *sensbResLen, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+    NO_WARNING(compMode);
+    
+    return rfalNfcbPollerCheckPresence( RFAL_NFCB_SENS_CMD_SENSB_REQ, RFAL_NFCB_SLOT_NUM_1, sensbRes, sensbResLen, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalNfcbPollerCollisionResolution( rfalComplianceMode compMode, uint8_t devLimit, rfalNfcbListenDevice *nfcbDevList, uint8_t *devCnt, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+    bool colPending; /* dummy */
+    return rfalNfcbPollerCollisionResolutionSlotted( compMode, devLimit, RFAL_NFCB_SLOT_NUM_1, RFAL_NFCB_SLOT_NUM_16, nfcbDevList, devCnt, &colPending, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalNfcbPollerCollisionResolutionSlotted( rfalComplianceMode compMode, uint8_t devLimit, rfalNfcbSlots initSlots, rfalNfcbSlots endSlots, rfalNfcbListenDevice *nfcbDevList, uint8_t *devCnt, bool *colPending, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+		ReturnCode    ret;
+        rfalNfcbSlots slotsNum;
+        uint8_t       slotCode;
+        uint8_t       curDevCnt;
+        
+        
+        /* Check parameters. In ISO | Activity 1.0 mode the initial slots must be 1 as continuation of Technology Detection */
+        if( (nfcbDevList == NULL) || (devCnt == NULL)  || (colPending == NULL) || (initSlots > RFAL_NFCB_SLOT_NUM_16) || 
+            (endSlots > RFAL_NFCB_SLOT_NUM_16) || ((compMode == RFAL_COMPLIANCE_MODE_ISO) && (initSlots != RFAL_NFCB_SLOT_NUM_1)) )
+        {
+            return ERR_PARAM;
+        }
+        
+        /* Initialise as no error in case Activity 1.0 where the previous SENSB_RES from technology detection should be used */
+        ret         = ERR_NONE;
+        *devCnt     = 0;
+        curDevCnt   = 0;
+        *colPending = false;
+           
+        
+        /* Send ALLB_REQ   Activity 1.1   9.3.5.2 and 9.3.5.3  (Symbol 1 and 2) */
+        if( compMode != RFAL_COMPLIANCE_MODE_ISO )
+        {
+           ret =  rfalNfcbPollerCheckPresence( RFAL_NFCB_SENS_CMD_ALLB_REQ, initSlots, &nfcbDevList->sensbRes, &nfcbDevList->sensbResLen, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+           if( (ret != ERR_NONE) && (initSlots == RFAL_NFCB_SLOT_NUM_1) )
+           {
+               return ret;
+           }
+        }
+
+        
+        /* Check if there was a transmission error on WUPB  EMVCo 2.6  9.3.3.1 */
+        if( (compMode == RFAL_COMPLIANCE_MODE_EMV) && (nfcbDevList->sensbResLen == 0) )
+        {
+            return ERR_FRAMING;
+        }
+        //(int)slotsNum = (int)initSlots; (int)slotsNum <= (int)endSlots; ((int)slotsNum)++ )
+
+        for( int i = 0; i < RFAL_NFCB_SLOT_NUM_16; i++)
+        {
+        	rfalNfcbSlots slotsNum = (rfalNfcbSlots) i;
+            /* Activity 1.1  9.3.5.23  -  Symbol 22 */
+            if( (compMode == RFAL_COMPLIANCE_MODE_NFC) && (curDevCnt != 0) )
+            {
+                rfalNfcbPollerSleep( nfcbDevList[(*devCnt-1)].sensbRes.nfcid0, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+                nfcbDevList[(*devCnt-1)].isSleep = true;
+            }
+            
+            /* Send SENSB_REQ with number of slots if not the first Activity 1.1  9.3.5.24  -  Symbol 23 */
+            if( (slotsNum != initSlots) || *colPending )
+            {
+               ret = rfalNfcbPollerCheckPresence( RFAL_NFCB_SENS_CMD_SENSB_REQ, slotsNum, &nfcbDevList[*devCnt].sensbRes, &nfcbDevList[*devCnt].sensbResLen, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+            }
+            
+            /* Activity 1.1  9.3.5.6  -  Symbol 5 */
+            slotCode    = 0;
+            curDevCnt   = 0;
+            *colPending = false;
+
+            do{
+                /* Activity 1.1  9.3.5.26  -  Symbol 25 */
+                if( slotCode != 0 )
+                {
+                    ret = rfalNfcbPollerSlotMarker( slotCode, &nfcbDevList[*devCnt].sensbRes, &nfcbDevList[*devCnt].sensbResLen, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+                }
+                
+                /* Activity 1.1  9.3.5.7 and 9.3.5.8  -  Symbol 6 */
+                if( ret != ERR_TIMEOUT )
+                {
+                    /* Activity 1.1  9.3.5.8  -  Symbol 7 */
+                    if( (ret == ERR_NONE) && (rfalNfcbCheckSensbRes( &nfcbDevList[*devCnt].sensbRes, nfcbDevList[*devCnt].sensbResLen) == ERR_NONE) )
+                    {
+                        nfcbDevList[*devCnt].isSleep = false;
+                        
+                        if( compMode == RFAL_COMPLIANCE_MODE_EMV )
+                        {
+                            (*devCnt)++;
+                            return ret;
+                        }
+                        else if( compMode == RFAL_COMPLIANCE_MODE_ISO )
+                        {
+                            /* Activity 1.0  9.3.5.8  -  Symbol 7 */
+                            (*devCnt)++;
+                            curDevCnt++;
+                            
+                            /* Activity 1.0  9.3.5.10  -  Symbol 9 */
+                            if( (*devCnt >= devLimit) || (slotsNum == RFAL_NFCB_SLOT_NUM_1) )
+                            {
+                                return ret;
+                            }
+
+                            /* Activity 1.0  9.3.5.11  -  Symbol 10 */
+                            rfalNfcbPollerSleep( nfcbDevList[*devCnt-1].sensbRes.nfcid0, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+                            nfcbDevList[*devCnt-1].isSleep =  true;
+                        }
+                        else if( compMode == RFAL_COMPLIANCE_MODE_NFC )
+                        {
+                            /* Activity 1.1  9.3.5.10 and 9.3.5.11  -  Symbol 9 and Symbol 11*/
+                            if(curDevCnt != 0)
+                            {
+                                rfalNfcbPollerSleep( nfcbDevList[*devCnt-1].sensbRes.nfcid0, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+                                nfcbDevList[*devCnt-1].isSleep = true;
+                            }
+                            
+                            /* Activity 1.1  9.3.5.12  -  Symbol 11 */
+                            (*devCnt)++;
+                            curDevCnt++;
+                            
+                            /* Activity 1.1  9.3.5.6  -  Symbol 13 */
+                            if( (*devCnt >= devLimit) || (slotsNum == RFAL_NFCB_SLOT_NUM_1) )
+                            {
+                                return ret;
+                            }
+                        }
+                    }
+                    else
+                    {
+                        /* If deviceLimit is set to 0 the NFC Forum Device is configured to perform collision detection only  Activity 1.0 and 1.1  9.3.5.5  - Symbol 4 */
+                        if( (devLimit == 0) && (slotsNum == RFAL_NFCB_SLOT_NUM_1) )
+                        {
+                            return ERR_RF_COLLISION;
+                        }
+                        
+                        /* Activity 1.1  9.3.5.9  -  Symbol 8 */
+                        *colPending = true;
+                    }
+                }
+                
+                /* Activity 1.1  9.3.5.15  -  Symbol 14 */
+                (int)slotCode++;
+            }
+            while( slotCode < rfalNfcbNI2NumberOfSlots(slotsNum) );
+            
+            /* Activity 1.1  9.3.5.17  -  Symbol 16 */
+            if( !(*colPending) )
+            {
+                return ERR_NONE;
+            }
+            
+            /* Activity 1.1  9.3.5.18  -  Symbol 17 */
+            if( curDevCnt != 0 )
+            {
+                /* If a collision is detected and card(s) were found on this loop keep the same number of available slots */
+            	//((int)slotsNum)--;
+            	i--;
+            }
+
+        }
+        
+        return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+uint32_t rfalNfcbTR2ToFDT( uint8_t tr2Code )
+{
+    return rfalNfcbTr2Table[ (tr2Code & RFAL_NFCB_SENSB_RES_PROTO_TR2_MASK) ];
+}
+
+#endif /* RFAL_FEATURE_NFCB */