[FL-2674] Show error popup when NFC chip is not init/disconnected (#1722)

* Show error popup when NFC chip is not init/disconnected
* Move to dialogs for the error message
* Fix a memory leak and wrap the hal check
* F7: update api_symbols.csv, add furi_hal_nfc_is_init

Co-authored-by: SG <who.just.the.doctor@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>

applications/main/nfc/nfc.c

@@ -231,7 +231,30 @@ void nfc_show_loading_popup(void* context, bool show) {
     }
 }
 
+static bool nfc_is_hal_ready() {
+    if(!furi_hal_nfc_is_init()) {
+        // No connection to the chip, show an error screen
+        DialogsApp* dialogs = furi_record_open(RECORD_DIALOGS);
+        DialogMessage* message = dialog_message_alloc();
+        dialog_message_set_text(
+            message,
+            "Error!\nNFC chip failed to start\n\n\nSend a photo of this to:\nsupport@flipperzero.one",
+            0,
+            0,
+            AlignLeft,
+            AlignTop);
+        dialog_message_show(dialogs, message);
+        dialog_message_free(message);
+        furi_record_close(RECORD_DIALOGS);
+        return false;
+    } else {
+        return true;
+    }
+}
+
 int32_t nfc_app(void* p) {
+    if(!nfc_is_hal_ready()) return 0;
+
     Nfc* nfc = nfc_alloc();
     char* args = p;
 

applications/main/nfc/nfc_i.h

@@ -33,6 +33,8 @@
 #include <nfc/scenes/nfc_scene.h>
 #include <nfc/helpers/nfc_custom_event.h>
 
+#include <dialogs/dialogs.h>
+
 #include "rpc/rpc_app.h"
 
 #define NFC_TEXT_STORE_SIZE 128

firmware/targets/f7/api_symbols.csv

@@ -1,5 +1,5 @@
 entry,status,name,type,params
-Version,+,1.3,,
+Version,+,1.4,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
@@ -1096,6 +1096,7 @@ Function,+,furi_hal_nfc_field_off,void,
 Function,+,furi_hal_nfc_field_on,void,
 Function,-,furi_hal_nfc_init,void,
 Function,+,furi_hal_nfc_is_busy,_Bool,
+Function,+,furi_hal_nfc_is_init,_Bool,
 Function,+,furi_hal_nfc_listen,_Bool,"uint8_t*, uint8_t, uint8_t*, uint8_t, _Bool, uint32_t"
 Function,+,furi_hal_nfc_listen_rx,_Bool,"FuriHalNfcTxRxContext*, uint32_t"
 Function,+,furi_hal_nfc_listen_sleep,void,

firmware/targets/f7/furi_hal/furi_hal_nfc.c

@@ -39,6 +39,10 @@ bool furi_hal_nfc_is_busy() {
     return rfalNfcGetState() != RFAL_NFC_STATE_IDLE;
 }
 
+bool furi_hal_nfc_is_init() {
+    return rfalNfcGetState() != RFAL_NFC_STATE_NOTINIT;
+}
+
 void furi_hal_nfc_field_on() {
     furi_hal_nfc_exit_sleep();
     st25r3916TxRxOn();

firmware/targets/furi_hal_include/furi_hal_nfc.h

@@ -107,6 +107,12 @@ void furi_hal_nfc_init();
  */
 bool furi_hal_nfc_is_busy();
 
+/** Check if nfc is initialized
+ *
+ * @return     true if initialized
+ */
+ bool furi_hal_nfc_is_init();
+
 /** NFC field on
  */
 void furi_hal_nfc_field_on();