NFC: move worker to separate file, use LED for IO indication, field on/off menu (#231)

2020-11-12 12:44:35 +03:00
parent 9d8c36810e
commit 608d458b9a
5 changed files with 197 additions and 156 deletions
--- a/applications/nfc/nfc_worker.c
+++ b/applications/nfc/nfc_worker.c
@@ -0,0 +1,108 @@
+#include "nfc_worker.h"
+#include "nfc.h"
+#include "nfc_i.h"
+
+#define EXAMPLE_NFCA_DEVICES 5
+
+// TODO replace with pubsub
+static bool isr_enabled = false;
+
+void nfc_isr() {
+    if(isr_enabled) {
+        st25r3916Isr();
+    }
+}
+
+void nfc_worker_task(void* context) {
+    Nfc* nfc = context;
+    ReturnCode err;
+    rfalNfcaSensRes sensRes;
+    rfalNfcaSelRes selRes;
+    rfalNfcaListenDevice nfcaDevList[EXAMPLE_NFCA_DEVICES];
+    uint8_t devCnt;
+    uint8_t devIt;
+
+    rfalLowPowerModeStop();
+
+    isr_enabled = true;
+
+    while(widget_is_enabled(nfc->widget)) {
+        rfalFieldOff();
+        platformDelay(500);
+        nfc->current = "Not detected";
+        nfc->devCnt = 0;
+
+        rfalNfcaPollerInitialize();
+        rfalFieldOnAndStartGT();
+        nfc->ret = err = rfalNfcaPollerTechnologyDetection(RFAL_COMPLIANCE_MODE_NFC, &sensRes);
+        if(err == ERR_NONE) {
+            err = rfalNfcaPollerFullCollisionResolution(
+                RFAL_COMPLIANCE_MODE_NFC, EXAMPLE_NFCA_DEVICES, nfcaDevList, &devCnt);
+            nfc->devCnt = devCnt;
+            if((err == ERR_NONE) && (devCnt > 0)) {
+                platformLog("NFC-A device(s) found %d\r\n", devCnt);
+                devIt = 0;
+                if(nfcaDevList[devIt].isSleep) {
+                    err = rfalNfcaPollerCheckPresence(
+                        RFAL_14443A_SHORTFRAME_CMD_WUPA, &sensRes); /* Wake up all cards  */
+                    if(err != ERR_NONE) {
+                        continue;
+                    }
+                    err = rfalNfcaPollerSelect(
+                        nfcaDevList[devIt].nfcId1,
+                        nfcaDevList[devIt].nfcId1Len,
+                        &selRes); /* Select specific device  */
+                    if(err != ERR_NONE) {
+                        continue;
+                    }
+                }
+
+                nfc->first_atqa = nfcaDevList[devIt].sensRes;
+                nfc->first_sak = nfcaDevList[devIt].selRes;
+
+                switch(nfcaDevList[devIt].type) {
+                case RFAL_NFCA_T1T:
+                    /* No further activation needed for a T1T (RID already performed)*/
+                    platformLog(
+                        "NFC-A T1T device found \r\n"); /* NFC-A T1T device found, NFCID/UID is contained in: t1tRidRes.uid */
+                    nfc->current = "NFC-A T1T";
+                    /* Following communications shall be performed using:
+                         *   - Non blocking: rfalStartTransceive() + rfalGetTransceiveState()
+                         *   -     Blocking: rfalTransceiveBlockingTx() + rfalTransceiveBlockingRx() or rfalTransceiveBlockingTxRx()    */
+                    break;
+                case RFAL_NFCA_T2T:
+                    /* No specific activation needed for a T2T */
+                    platformLog(
+                        "NFC-A T2T device found \r\n"); /* NFC-A T2T device found, NFCID/UID is contained in: nfcaDev.nfcid */
+                    nfc->current = "NFC-A T2T";
+                    /* Following communications shall be performed using:
+                         *   - Non blocking: rfalStartTransceive() + rfalGetTransceiveState()
+                         *   -     Blocking: rfalTransceiveBlockingTx() + rfalTransceiveBlockingRx() or rfalTransceiveBlockingTxRx()    */
+                    break;
+                case RFAL_NFCA_T4T:
+                    platformLog(
+                        "NFC-A T4T (ISO-DEP) device found \r\n"); /* NFC-A T4T device found, NFCID/UID is contained in: nfcaDev.nfcid */
+                    nfc->current = "NFC-A T4T";
+                    /* Activation should continue using rfalIsoDepPollAHandleActivation(), see exampleRfalPoller.c */
+                    break;
+                case RFAL_NFCA_T4T_NFCDEP: /* Device supports T4T and NFC-DEP */
+                case RFAL_NFCA_NFCDEP: /* Device supports NFC-DEP */
+                    platformLog(
+                        "NFC-A P2P (NFC-DEP) device found \r\n"); /* NFC-A P2P device found, NFCID/UID is contained in: nfcaDev.nfcid */
+                    nfc->current = "NFC-A P2P";
+                    /* Activation should continue using rfalNfcDepInitiatorHandleActivation(), see exampleRfalPoller.c */
+                    break;
+                }
+                rfalNfcaPollerSleep(); /* Put device to sleep / HLTA (useless as the field will be turned off anyhow) */
+            }
+        }
+        widget_update(nfc->widget);
+    }
+
+    isr_enabled = false;
+    rfalFieldOff();
+    rfalLowPowerModeStart();
+    nfc->ret = ERR_NONE;
+    nfc->worker = NULL;
+    osThreadExit();
+}