Nfc: add field testing (#1027)

* Nfc: add field cli command
* Nfc: add field test in debug menu
* Nfc: warning message for field tests
* Format sources

applications/nfc/nfc_cli.c

@@ -11,6 +11,9 @@ static void nfc_cli_print_usage() {
     printf("Cmd list:\r\n");
     printf("\tdetect\t - detect nfc device\r\n");
     printf("\temulate\t - emulate predefined nfca card\r\n");
+    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+        printf("\tfield\t - turn field on\r\n");
+    }
 }
 
 void nfc_cli_detect(Cli* cli, string_t args) {
@@ -76,6 +79,27 @@ void nfc_cli_emulate(Cli* cli, string_t args) {
     furi_hal_nfc_deactivate();
 }
 
+void nfc_cli_field(Cli* cli, string_t args) {
+    // Check if nfc worker is not busy
+    if(furi_hal_nfc_is_busy()) {
+        printf("Nfc is busy\r\n");
+        return;
+    }
+
+    furi_hal_nfc_exit_sleep();
+    furi_hal_nfc_field_on();
+
+    printf("Field is on. Don't leave device in this mode for too long.\r\n");
+    printf("Press Ctrl+C to abort\r\n");
+
+    while(!cli_cmd_interrupt_received(cli)) {
+        osDelay(50);
+    }
+
+    furi_hal_nfc_field_off();
+    furi_hal_nfc_deactivate();
+}
+
 static void nfc_cli(Cli* cli, string_t args, void* context) {
     string_t cmd;
     string_init(cmd);
@@ -94,6 +118,13 @@ static void nfc_cli(Cli* cli, string_t args, void* context) {
             break;
         }
 
+        if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
+            if(string_cmp_str(cmd, "field") == 0) {
+                nfc_cli_field(cli, args);
+                break;
+            }
+        }
+
         nfc_cli_print_usage();
     } while(false);
 

applications/nfc/scenes/nfc_scene_config.h

@@ -27,3 +27,5 @@ ADD_SCENE(nfc, read_emv_data, ReadEmvData)
 ADD_SCENE(nfc, read_emv_data_success, ReadEmvDataSuccess)
 ADD_SCENE(nfc, emulate_apdu_sequence, EmulateApduSequence)
 ADD_SCENE(nfc, restore_original, RestoreOriginal)
+ADD_SCENE(nfc, debug, Debug)
+ADD_SCENE(nfc, field, Field)

applications/nfc/scenes/nfc_scene_debug.c

@@ -0,0 +1,54 @@
+#include "../nfc_i.h"
+
+enum SubmenuDebugIndex {
+    SubmenuDebugIndexField,
+    SubmenuDebugIndexApdu,
+};
+
+void nfc_scene_debug_submenu_callback(void* context, uint32_t index) {
+    Nfc* nfc = (Nfc*)context;
+
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, index);
+}
+
+void nfc_scene_debug_on_enter(void* context) {
+    Nfc* nfc = (Nfc*)context;
+    Submenu* submenu = nfc->submenu;
+
+    submenu_add_item(
+        submenu, "Field", SubmenuDebugIndexField, nfc_scene_debug_submenu_callback, nfc);
+    submenu_add_item(
+        submenu, "Apdu", SubmenuDebugIndexApdu, nfc_scene_debug_submenu_callback, nfc);
+
+    submenu_set_selected_item(
+        submenu, scene_manager_get_scene_state(nfc->scene_manager, NfcSceneDebug));
+
+    nfc_device_clear(nfc->dev);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewMenu);
+}
+
+bool nfc_scene_debug_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = (Nfc*)context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == SubmenuDebugIndexField) {
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneDebug, SubmenuDebugIndexField);
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneField);
+            consumed = true;
+        } else if(event.event == SubmenuDebugIndexApdu) {
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneDebug, SubmenuDebugIndexApdu);
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneEmulateApduSequence);
+            consumed = true;
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_debug_on_exit(void* context) {
+    Nfc* nfc = (Nfc*)context;
+
+    submenu_reset(nfc->submenu);
+}

applications/nfc/scenes/nfc_scene_emulate_apdu_sequence.c

@@ -32,7 +32,5 @@ void nfc_scene_emulate_apdu_sequence_on_exit(void* context) {
 
     // Clear view
     Popup* popup = nfc->popup;
-    popup_set_header(popup, NULL, 0, 0, AlignCenter, AlignBottom);
-    popup_set_text(popup, NULL, 0, 0, AlignCenter, AlignTop);
-    popup_set_icon(popup, 0, 0, NULL);
+    popup_reset(popup);
 }

applications/nfc/scenes/nfc_scene_field.c

@@ -0,0 +1,34 @@
+#include "../nfc_i.h"
+
+void nfc_scene_field_on_enter(void* context) {
+    Nfc* nfc = (Nfc*)context;
+
+    furi_hal_nfc_field_on();
+
+    Popup* popup = nfc->popup;
+    popup_set_header(
+        popup,
+        "Field is on\nDon't leave device\nin this mode for too long.",
+        64,
+        11,
+        AlignCenter,
+        AlignTop);
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+
+    notification_internal_message(nfc->notifications, &sequence_set_blue_255);
+}
+
+bool nfc_scene_field_on_event(void* context, SceneManagerEvent event) {
+    return false;
+}
+
+void nfc_scene_field_on_exit(void* context) {
+    Nfc* nfc = (Nfc*)context;
+
+    notification_internal_message(nfc->notifications, &sequence_reset_blue);
+
+    Popup* popup = nfc->popup;
+    popup_reset(popup);
+
+    furi_hal_nfc_field_off();
+}

applications/nfc/scenes/nfc_scene_start.c

@@ -68,7 +68,7 @@ bool nfc_scene_start_on_event(void* context, SceneManagerEvent event) {
             consumed = true;
         } else if(event.event == SubmenuIndexDebug) {
             scene_manager_set_scene_state(nfc->scene_manager, NfcSceneStart, SubmenuIndexDebug);
-            scene_manager_next_scene(nfc->scene_manager, NfcSceneEmulateApduSequence);
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneDebug);
             consumed = true;
         }
     }