NFC_Eink

nfc_eink/application.fam

@@ -0,0 +1,18 @@
+App(
+    appid="nfc_eink",
+    name="NFC-Eink",
+    apptype=FlipperAppType.EXTERNAL,
+    targets=["f7"],
+    entry_point="nfc_eink",
+    icon="A_NFC_14",
+    stack_size=5 * 1024,
+    order=30,
+    sources=[
+        "*.c*"
+    ],
+    fap_icon="icon.png",
+    fap_icon_assets="assets",
+    fap_description="Application for emulation and writing to NFC Eink tags",
+    fap_version="1.0",
+    fap_category="NFC",
+)

nfc_eink/nfc_eink_app.c

@@ -0,0 +1,275 @@
+#include "nfc_eink_app_i.h"
+#include <flipper_format/flipper_format.h>
+#include <path.h>
+
+#define TAG "NfcEinkApp"
+
+#define NFC_EINK_SETTINGS_PATH    NFC_EINK_APP_FOLDER "/.eink.settings"
+#define NFC_EINK_SETTINGS_VERSION (1)
+#define NFC_EINK_SETTINGS_MAGIC   (0x1B)
+
+static bool nfc_is_hal_ready(void) {
+    if(furi_hal_nfc_is_hal_ready() != FuriHalNfcErrorNone) {
+        // No connection to the chip, show an error screen
+        DialogsApp* dialogs = furi_record_open(RECORD_DIALOGS);
+        DialogMessage* message = dialog_message_alloc();
+        dialog_message_set_header(message, "Error: NFC Chip Failed", 64, 0, AlignCenter, AlignTop);
+        dialog_message_set_text(
+            message, "Send error photo via\nsupport.flipper.net", 0, 63, AlignLeft, AlignBottom);
+        dialog_message_set_icon(message, &I_err_09, 128 - 25, 64 - 25);
+        dialog_message_show(dialogs, message);
+        dialog_message_free(message);
+        furi_record_close(RECORD_DIALOGS);
+        return false;
+    } else {
+        return true;
+    }
+}
+
+static bool nfc_eink_app_custom_event_callback(void* context, uint32_t event) {
+    furi_assert(context);
+    NfcEinkApp* app = context;
+    return scene_manager_handle_custom_event(app->scene_manager, event);
+}
+
+static bool nfc_eink_app_back_event_callback(void* context) {
+    furi_assert(context);
+    NfcEinkApp* app = context;
+    return scene_manager_handle_back_event(app->scene_manager);
+}
+
+static void nfc_eink_app_tick_event_callback(void* context) {
+    furi_assert(context);
+    NfcEinkApp* app = context;
+    scene_manager_handle_tick_event(app->scene_manager);
+}
+
+static NfcEinkApp* nfc_eink_app_alloc() {
+    NfcEinkApp* instance = malloc(sizeof(NfcEinkApp));
+
+    // Open GUI record
+    instance->gui = furi_record_open(RECORD_GUI);
+
+    // Open Dialogs record
+    instance->dialogs = furi_record_open(RECORD_DIALOGS);
+
+    // Open Notification record
+    instance->notifications = furi_record_open(RECORD_NOTIFICATION);
+
+    instance->view_dispatcher = view_dispatcher_alloc();
+    view_dispatcher_set_event_callback_context(instance->view_dispatcher, instance);
+    view_dispatcher_set_custom_event_callback(
+        instance->view_dispatcher, nfc_eink_app_custom_event_callback);
+    view_dispatcher_set_navigation_event_callback(
+        instance->view_dispatcher, nfc_eink_app_back_event_callback);
+    view_dispatcher_set_tick_event_callback(
+        instance->view_dispatcher, nfc_eink_app_tick_event_callback, 100);
+
+    view_dispatcher_attach_to_gui(
+        instance->view_dispatcher, instance->gui, ViewDispatcherTypeFullscreen);
+
+    // Submenu
+    instance->submenu = submenu_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher, NfcEinkViewMenu, submenu_get_view(instance->submenu));
+
+    // Popup
+    instance->popup = popup_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher, NfcEinkViewPopup, popup_get_view(instance->popup));
+
+    // Progress bar
+    instance->eink_progress = eink_progress_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher,
+        NfcEinkViewProgress,
+        eink_progress_get_view(instance->eink_progress));
+
+    // Dialog
+    instance->dialog_ex = dialog_ex_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher, NfcEinkViewDialogEx, dialog_ex_get_view(instance->dialog_ex));
+
+    // Text Input
+    instance->text_input = text_input_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher,
+        NfcEinkViewTextInput,
+        text_input_get_view(instance->text_input));
+
+    // Custom Widget
+    instance->widget = widget_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher, NfcEinkViewWidget, widget_get_view(instance->widget));
+
+    // Variable item list
+    instance->var_item_list = variable_item_list_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher,
+        NfcEinkViewVarItemList,
+        variable_item_list_get_view(instance->var_item_list));
+
+    // Image scroll
+    instance->image_scroll = image_scroll_alloc();
+    view_dispatcher_add_view(
+        instance->view_dispatcher,
+        NfcEinkViewImageScroll,
+        image_scroll_get_view(instance->image_scroll));
+
+    instance->scene_manager = scene_manager_alloc(&nfc_eink_scene_handlers, instance);
+    instance->nfc = nfc_alloc();
+    instance->file_path = furi_string_alloc();
+    instance->file_name = furi_string_alloc();
+    return instance;
+}
+
+static void nfc_eink_app_free(NfcEinkApp* instance) {
+    furi_assert(instance);
+
+    nfc_free(instance->nfc);
+    scene_manager_free(instance->scene_manager);
+
+    // Submenu
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewMenu);
+    submenu_free(instance->submenu);
+
+    // DialogEx
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewDialogEx);
+    dialog_ex_free(instance->dialog_ex);
+
+    // Popup
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewPopup);
+    popup_free(instance->popup);
+
+    // TextInput
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewTextInput);
+    text_input_free(instance->text_input);
+
+    // Progress
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewProgress);
+    eink_progress_free(instance->eink_progress);
+
+    // Custom Widget
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewWidget);
+    widget_free(instance->widget);
+
+    // Var Item List
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewVarItemList);
+    variable_item_list_free(instance->var_item_list);
+
+    view_dispatcher_remove_view(instance->view_dispatcher, NfcEinkViewImageScroll);
+    image_scroll_free(instance->image_scroll);
+
+    view_dispatcher_free(instance->view_dispatcher);
+
+    furi_record_close(RECORD_DIALOGS);
+    furi_record_close(RECORD_NOTIFICATION);
+    furi_record_close(RECORD_GUI);
+
+    furi_string_free(instance->file_path);
+    furi_string_free(instance->file_name);
+
+    instance->dialogs = NULL;
+    instance->gui = NULL;
+    instance->notifications = NULL;
+    free(instance);
+}
+
+static void nfc_eink_make_app_folders(const NfcEinkApp* instance) {
+    furi_assert(instance);
+
+    Storage* storage = furi_record_open(RECORD_STORAGE);
+    if(!storage_simply_mkdir(storage, NFC_EINK_APP_FOLDER)) {
+        dialog_message_show_storage_error(instance->dialogs, "Cannot create\napp folder");
+    }
+    furi_record_close(RECORD_STORAGE);
+}
+
+static void nfc_eink_load_settings(NfcEinkApp* instance) {
+    NfcEinkSettings settings = {0};
+
+    if(!saved_struct_load(
+           NFC_EINK_SETTINGS_PATH,
+           &settings,
+           sizeof(NfcEinkSettings),
+           NFC_EINK_SETTINGS_MAGIC,
+           NFC_EINK_SETTINGS_VERSION)) {
+        FURI_LOG_D(TAG, "Failed to load settings, using defaults");
+        nfc_eink_save_settings(instance);
+    }
+
+    instance->settings.invert_image = settings.invert_image;
+    instance->settings.write_mode = settings.write_mode;
+}
+
+void nfc_eink_save_settings(NfcEinkApp* instance) {
+    NfcEinkSettings settings = {
+        .invert_image = instance->settings.invert_image,
+        .write_mode = instance->settings.write_mode,
+    };
+
+    if(!saved_struct_save(
+           NFC_EINK_SETTINGS_PATH,
+           &settings,
+           sizeof(NfcEinkSettings),
+           NFC_EINK_SETTINGS_MAGIC,
+           NFC_EINK_SETTINGS_VERSION)) {
+        FURI_LOG_E(TAG, "Failed to save settings");
+    }
+}
+
+bool nfc_eink_load_from_file_select(NfcEinkApp* instance) {
+    furi_assert(instance);
+
+    DialogsFileBrowserOptions browser_options;
+    dialog_file_browser_set_basic_options(&browser_options, NFC_EINK_APP_EXTENSION, &I_Nfc_10px);
+    browser_options.base_path = NFC_EINK_APP_FOLDER;
+    browser_options.hide_dot_files = true;
+
+    FuriString* tmp = furi_string_alloc();
+    furi_string_reset(instance->file_path);
+
+    bool success = false;
+    do {
+        // Input events and views are managed by file_browser
+        furi_string_printf(tmp, NFC_EINK_APP_FOLDER);
+
+        if(!dialog_file_browser_show(instance->dialogs, instance->file_path, tmp, &browser_options))
+            break;
+
+        success = nfc_eink_screen_load_info(
+            furi_string_get_cstr(instance->file_path), &instance->info_temp);
+        path_extract_filename(instance->file_path, instance->file_name, false);
+    } while(!success);
+
+    furi_string_free(tmp);
+
+    return success;
+}
+
+void nfc_eink_blink_emulate_start(NfcEinkApp* app) {
+    notification_message(app->notifications, &sequence_blink_start_magenta);
+}
+
+void nfc_eink_blink_write_start(NfcEinkApp* app) {
+    notification_message(app->notifications, &sequence_blink_start_cyan);
+}
+
+void nfc_eink_blink_stop(NfcEinkApp* app) {
+    notification_message(app->notifications, &sequence_blink_stop);
+}
+
+int32_t nfc_eink(/* void* p */) {
+    if(!nfc_is_hal_ready()) return 0;
+
+    NfcEinkApp* app = nfc_eink_app_alloc();
+
+    nfc_eink_make_app_folders(app);
+    nfc_eink_load_settings(app);
+    scene_manager_next_scene(app->scene_manager, NfcEinkAppSceneStart);
+
+    view_dispatcher_run(app->view_dispatcher);
+
+    nfc_eink_app_free(app);
+    return 0;
+}

nfc_eink/nfc_eink_app.h

@@ -0,0 +1,3 @@
+#pragma once
+
+typedef struct NfcEinkApp NfcEinkApp;