Mirrors/unleashed-firmware
2
0
Fork 0
mirror of https://github.com/DarkFlippers/unleashed-firmware synced 2024-11-24 05:23:06 +00:00
Code Issues Projects Releases Packages Wiki Activity
unleashed-firmware/lib/ST25RFAL002/source/rfal_nfc.c
gornekich eafeefb843
[FL-1396] Mifare Classic read (#1034) 
* rfal: add new data exchange function
* core: add FURI_BIT to common defines
* furi_hal_nfc: add data exchange with custom patiry bits
* lib: extend nfc common API
* assets: add mf classic dictionary
* lib: introduce mifare classic library
* nfc: add dictionary reader helper
* nfc worker: add worker events, add mifare classic read
* nfc: rework scenes with worker events
* nfc: add read mifare classic GUI
* nfc device: add mifare classic save
* nfc: add dictionary open fail scene
* nfc: mention resources
* stream: fix stream read line
* subghz: rework file read with fixed stream_read_line
* furi_hal_nfc: decrease communication timeout
* nfc: rework keys load from dictionary with file_stream
* nfc: add read mifare classic suggestion
* nfc: fix mifare classic read view
* nfc: fix index size
* nfc: add switch to no dictionary found scene
* nfc: add mifare classic load
* nfc: improve read mifare classic design
* mifare_classic: add proxmark3 mention
* nfc: format sources
* nfc: fix typos, add documentation
2022-03-24 01:14:34 +03:00

2112 lines
82 KiB
C
Executable file
Raw Blame History

/**
******************************************************************************
*
* 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,
uint32_t flags) {
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));
if(gNfcDev.disc.activate_after_sak) {
gNfcDev.state = RFAL_NFC_STATE_DATAEXCHANGE_DONE;
}
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,
flags,
fwt);
if(flags == RFAL_TXRX_FLAGS_RAW) {
ctx.txBufLen = txDataLen;
}
*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 rfalNfcDataExchangeCustomStart(
uint8_t* txData,
uint16_t txDataLen,
uint8_t** rxData,
uint16_t** rvdLen,
uint32_t fwt,
uint32_t flags) {
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));
if(gNfcDev.disc.activate_after_sak) {
gNfcDev.state = RFAL_NFC_STATE_DATAEXCHANGE_DONE;
}
return ERR_NONE;
}
/*******************************************************************************/
switch(gNfcDev.activeDev
->rfInterface) /* Check which RF interface shall be used/has been activated */
{
/*******************************************************************************/
case RFAL_NFC_INTERFACE_RF:
ctx.rxBuf = gNfcDev.rxBuf.rfBuf, ctx.rxBufLen = sizeof(gNfcDev.rxBuf.rfBuf),
ctx.rxRcvdLen = &gNfcDev.rxLen, ctx.txBuf = txData, ctx.txBufLen = txDataLen,
ctx.flags = flags, ctx.fwt = 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));
}
else if(gNfcDev.disc.activate_after_sak) {
gNfcDev.devList->type = RFAL_NFC_POLL_TYPE_NFCA;
rfalListenSetState(RFAL_LM_STATE_ACTIVE_A);
return ERR_NONE;
}
#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;
}
Reference in a new issue View git blame Copy permalink