108 lines
4.5 KiB
C
108 lines
4.5 KiB
C
#include "nfc_worker.h"
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#include "nfc.h"
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#include "nfc_i.h"
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#define EXAMPLE_NFCA_DEVICES 5
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// TODO replace with pubsub
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static bool isr_enabled = false;
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void nfc_isr() {
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if(isr_enabled) {
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st25r3916Isr();
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}
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}
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void nfc_worker_task(void* context) {
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Nfc* nfc = context;
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ReturnCode err;
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rfalNfcaSensRes sensRes;
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rfalNfcaSelRes selRes;
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rfalNfcaListenDevice nfcaDevList[EXAMPLE_NFCA_DEVICES];
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uint8_t devCnt;
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uint8_t devIt;
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rfalLowPowerModeStop();
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isr_enabled = true;
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while(widget_is_enabled(nfc->widget)) {
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rfalFieldOff();
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platformDelay(500);
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nfc->current = "Not detected";
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nfc->devCnt = 0;
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rfalNfcaPollerInitialize();
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rfalFieldOnAndStartGT();
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nfc->ret = err = rfalNfcaPollerTechnologyDetection(RFAL_COMPLIANCE_MODE_NFC, &sensRes);
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if(err == ERR_NONE) {
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err = rfalNfcaPollerFullCollisionResolution(
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RFAL_COMPLIANCE_MODE_NFC, EXAMPLE_NFCA_DEVICES, nfcaDevList, &devCnt);
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nfc->devCnt = devCnt;
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if((err == ERR_NONE) && (devCnt > 0)) {
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platformLog("NFC-A device(s) found %d\r\n", devCnt);
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devIt = 0;
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if(nfcaDevList[devIt].isSleep) {
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err = rfalNfcaPollerCheckPresence(
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RFAL_14443A_SHORTFRAME_CMD_WUPA, &sensRes); /* Wake up all cards */
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if(err != ERR_NONE) {
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continue;
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}
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err = rfalNfcaPollerSelect(
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nfcaDevList[devIt].nfcId1,
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nfcaDevList[devIt].nfcId1Len,
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&selRes); /* Select specific device */
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if(err != ERR_NONE) {
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continue;
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}
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}
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nfc->first_atqa = nfcaDevList[devIt].sensRes;
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nfc->first_sak = nfcaDevList[devIt].selRes;
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switch(nfcaDevList[devIt].type) {
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case RFAL_NFCA_T1T:
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/* No further activation needed for a T1T (RID already performed)*/
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platformLog(
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"NFC-A T1T device found \r\n"); /* NFC-A T1T device found, NFCID/UID is contained in: t1tRidRes.uid */
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nfc->current = "NFC-A T1T";
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/* Following communications shall be performed using:
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* - Non blocking: rfalStartTransceive() + rfalGetTransceiveState()
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* - Blocking: rfalTransceiveBlockingTx() + rfalTransceiveBlockingRx() or rfalTransceiveBlockingTxRx() */
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break;
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case RFAL_NFCA_T2T:
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/* No specific activation needed for a T2T */
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platformLog(
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"NFC-A T2T device found \r\n"); /* NFC-A T2T device found, NFCID/UID is contained in: nfcaDev.nfcid */
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nfc->current = "NFC-A T2T";
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/* Following communications shall be performed using:
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* - Non blocking: rfalStartTransceive() + rfalGetTransceiveState()
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* - Blocking: rfalTransceiveBlockingTx() + rfalTransceiveBlockingRx() or rfalTransceiveBlockingTxRx() */
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break;
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case RFAL_NFCA_T4T:
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platformLog(
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"NFC-A T4T (ISO-DEP) device found \r\n"); /* NFC-A T4T device found, NFCID/UID is contained in: nfcaDev.nfcid */
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nfc->current = "NFC-A T4T";
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/* Activation should continue using rfalIsoDepPollAHandleActivation(), see exampleRfalPoller.c */
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break;
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case RFAL_NFCA_T4T_NFCDEP: /* Device supports T4T and NFC-DEP */
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case RFAL_NFCA_NFCDEP: /* Device supports NFC-DEP */
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platformLog(
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"NFC-A P2P (NFC-DEP) device found \r\n"); /* NFC-A P2P device found, NFCID/UID is contained in: nfcaDev.nfcid */
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nfc->current = "NFC-A P2P";
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/* Activation should continue using rfalNfcDepInitiatorHandleActivation(), see exampleRfalPoller.c */
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break;
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}
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rfalNfcaPollerSleep(); /* Put device to sleep / HLTA (useless as the field will be turned off anyhow) */
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}
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}
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widget_update(nfc->widget);
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}
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isr_enabled = false;
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rfalFieldOff();
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rfalLowPowerModeStart();
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nfc->ret = ERR_NONE;
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nfc->worker = NULL;
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osThreadExit();
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} |