Add Marauder first functions

LICENSE

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+MIT License
+
+Copyright (c) 2023 Esteban Fuentealba
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# [MALVEKE] ***GAME BOY*** Live Camera 
+
+## Introduction
+
+<div align="center">
+
+**Official** | **Unleashed** | **RogueMaster** | **Xtreme**
+:- | :- | :- | :- 
+[![FlipC.org](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero/badge?root=flipper_companion_apps/malveke_gb_live_camera&branch=main)](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero?root=flipper_companion_apps/malveke_gb_live_camera&branch=main)|[![FlipC.org](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero/badge?root=flipper_companion_apps/malveke_gb_live_camera&branch=main&firmware=unleashed)](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero?root=flipper_companion_apps/malveke_gb_live_camera&branch=main&firmware=unleashed)|[![FlipC.org](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero/badge?root=flipper_companion_apps/malveke_gb_live_camera&branch=main&firmware=roguemaster)](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero?root=flipper_companion_apps/malveke_gb_live_camera&branch=main&firmware=roguemaster)|[![FlipC.org](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero/badge?root=flipper_companion_apps/malveke_gb_live_camera&branch=main&firmware=xtreme)](https://flipc.org/EstebanFuentealba/MALVEKE-Flipper-Zero?root=flipper_companion_apps/malveke_gb_live_camera&branch=main&firmware=xtreme)
+</div>
+
+## Installation Directions
+
+This project is intended to be overlayed on top of an existing firmware repo,  in my case the **Release 0.79.1** version.
+
+- Clone the [Flipper Zero firmware repository](https://github.com/flipperdevices/flipperzero-firmware). Refer to [this tutorial](https://github.com/jamisonderek/flipper-zero-tutorials/tree/main/firmware/updating/README.md) for updating the firmware.
+- Copy the "malveke_gb_live_camera" folder into the `/applications_user/malveke_gb_live_camera` folder in your firmware.
+- Run the command `ufbt launch` to run it on your Flipper Zero.
+
+```
+./ufbt launch
+```
+
+- NOTE: If you only want to generate the fap file, you must run the following command.
+
+```bash
+./ufbt 
+```
+
+And use [**qFlipper**](https://flipperzero.one/update) to copy the generated **malveke_gb_live_camera.fap** file to the `SD Card/apps/GPIO` folder.
+
+<p align='center'>
+<img src="./docs/images/qFlipper.png" width="400" /><br />
+</p>
+
+## Instructions for use.
+
+These instructions assume that you are starting at the Flipper Zero desktop. Otherwise, press the Back button until you are at the desktop.
+
+- Press the `OK` button on the Flipper to open the main menu.
+- Choose `Applications` from the menu.
+- Choose `GPIO` from the submenu.
+- Choose `[MALVEKE] GB Live Camera`
+- The Flipper Zero will show the loading screen of the application. 
+
+    <p align='center'>
+        <br />
+        <img src="./docs/images/flipper-zero-flat-1.png" width="400" />
+        <br />
+    </p>
+
+- If the **MALVEKE** board and the **GAME BOY Camera** cartridge are connected, an image will be displayed.
+
+    <p align='center'>
+        <br />
+        <img src="./docs/images/flipper-zero-flat-2.gif" width="400" />
+        <br />
+    </p>
+
+- Press the `LEFT`/`RIGHT` buttons to change the exposure value.
+- Press the `OK` button to take a picture. The image will be saved in the `DCIM` folder. 
+
+
+
+
+## TODO
+- [ ] Add automatic exposure calculation.
+- [ ] Refactor Code
+
+## Acknowledgements
+- [**@AntonioND**](https://github.com/AntonioND/) for his documentation on [reverse engineering the Game Boy Camera](https://github.com/AntonioND/gbcam-rev-engineer/) and for his assistance in understanding some aspects.
+- [**@eried**](https://github.com/eried) for his implementation of [ESP32-Camera](https://github.com/eried/flipperzero-mayhem/tree/next/flipper_companion_apps/applications/external/esp32cam_camera) (This is based on it.)
+- [**@furrtek**](https://github.com/furrtek/) for his projects [GBCameraProjects](https://github.com/furrtek/GBCameraProjects)
+
+
+<p align='center'>
+<br />
+<br />
+From Talcahuano 🇨🇱 with ❤ 
+</p>

application.fam

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+App(
+    appid="malveke_gb_live_camera",
+    name="[MALVEKE] GB Live Camera",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="gb_live_camera_app",
+    cdefines=["APP_CAMERA"],
+    requires=["gui"],
+    stack_size=8*1024,
+    order=1,
+    fap_libs=["assets"],
+	fap_icon="icons/icon.png",
+    fap_icon_assets="icons",
+    fap_category="GPIO",
+	fap_description="ESP32 GAME BOY CAMERA live feed and photo capture, use left/right for exposition and center for saving a screenshot.",
+	fap_author="Esteban Fuentealba",
+	fap_weburl="https://github.com/EstebanFuentealba/MALVEKE-Flipper-Zero/"
+)

gb_live_camera.c

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+#include "gb_live_camera.h"
+#include <malveke_gb_live_camera_icons.h>
+
+
+
+static void gb_live_camera_view_draw_callback(Canvas* canvas, void* _model) {
+    UartDumpModel* model = _model;
+
+    // Prepare canvas
+    canvas_set_color(canvas, ColorBlack);
+    canvas_draw_frame(canvas, 0, 0, FRAME_WIDTH, FRAME_HEIGTH);
+    
+    for(size_t p = 0; p < FRAME_BUFFER_LENGTH; ++p) {
+        uint8_t x = p % ROW_BUFFER_LENGTH; // 0 .. 15
+        uint8_t y = p / ROW_BUFFER_LENGTH; // 0 .. 63
+
+        for(uint8_t i = 0; i < 8; ++i) {
+            if((model->pixels[p] & (1 << (7 - i))) != 0) {
+                canvas_draw_dot(canvas, (x * 8) + i, y);
+            }
+        }
+    }
+
+    if (!model->initialized){
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str(canvas, 8, 31, "GAME BOY");
+        canvas_draw_icon(canvas, 76, 8, &I_gbcam_48x49);
+        canvas_set_font(canvas, FontSecondary);
+        canvas_draw_str(canvas, 8, 21, "WAITING");
+        canvas_set_font(canvas, FontPrimary);
+        canvas_draw_str(canvas, 8, 41, "CAMERA...");
+        canvas_set_font(canvas, FontSecondary);
+        canvas_draw_str(canvas, 9, 50, "Insert Cartridge");
+    }
+}
+
+void get_timefilename(FuriString* name) {
+    FuriHalRtcDateTime datetime = {0};
+    furi_hal_rtc_get_datetime(&datetime);
+    furi_string_printf(
+        name,
+        EXT_PATH("DCIM/%.4d%.2d%.2d-%.2d%.2d%.2d.bmp"),
+        datetime.year,
+        datetime.month,
+        datetime.day,
+        datetime.hour,
+        datetime.minute,
+        datetime.second);
+}
+
+static void save_image(void* context) {
+    UartEchoApp* app = context;
+    furi_assert(app);
+
+    NotificationApp* notifications = furi_record_open(RECORD_NOTIFICATION);
+
+    // We need a storage struct (gain accesso to the filesystem API )
+    Storage* storage = furi_record_open(RECORD_STORAGE);
+
+    // storage_file_alloc gives to us a File pointer using the Storage API.
+    File* file = storage_file_alloc(storage);
+
+    if(storage_common_stat(storage, IMAGE_FILE_DIRECTORY_PATH, NULL) == FSE_NOT_EXIST) {
+        storage_simply_mkdir(storage, IMAGE_FILE_DIRECTORY_PATH);
+    }
+
+    // create file name
+    FuriString* file_name = furi_string_alloc();
+    get_timefilename(file_name);
+
+    // this functions open a file, using write access and creates new file if not exist.
+    bool result = storage_file_open(file, furi_string_get_cstr(file_name), FSAM_WRITE, FSOM_OPEN_ALWAYS);
+    //bool result = storage_file_open(file, EXT_PATH("DCIM/test.bmp"), FSAM_WRITE, FSOM_OPEN_ALWAYS);
+    furi_string_free(file_name);
+
+    if (result){
+        storage_file_write(file, bitmap_header, BITMAP_HEADER_LENGTH);
+        with_view_model(app->view, UartDumpModel * model, {
+            int8_t row_buffer[ROW_BUFFER_LENGTH];
+            for (size_t i = 64; i > 0; --i) {
+                for (size_t j = 0; j < ROW_BUFFER_LENGTH; ++j){
+                    row_buffer[j] = model->pixels[((i-1)*ROW_BUFFER_LENGTH) + j];
+                }
+                storage_file_write(file, row_buffer, ROW_BUFFER_LENGTH);
+            }
+            
+        }, false);
+    }
+
+    // Closing the "file descriptor"
+    storage_file_close(file);
+
+    // Freeing up memory
+    storage_file_free(file);
+
+    notification_message(notifications, result ? &sequence_success : &sequence_error);
+}
+
+static bool gb_live_camera_view_input_callback(InputEvent* event, void* context) {
+    if (event->type == InputTypePress){
+        if (event->key == InputKeyUp){
+            const char gblivecamera_command_enable_dithering[] = "gblivecamera -D\n";
+            furi_hal_uart_tx(FuriHalUartIdUSART1, (uint8_t*)gblivecamera_command_enable_dithering, strlen(gblivecamera_command_enable_dithering));
+        }
+        else if (event->key == InputKeyDown){
+            const char gblivecamera_command_disable_dithering[] = "gblivecamera -d\n";
+            furi_hal_uart_tx(FuriHalUartIdUSART1, (uint8_t*)gblivecamera_command_disable_dithering, strlen(gblivecamera_command_disable_dithering));
+        }
+        else if (event->key == InputKeyRight){
+            const char gblivecamera_command_increase_exposure[] = "gblivecamera -E\n";
+            furi_hal_uart_tx(FuriHalUartIdUSART1, (uint8_t*)gblivecamera_command_increase_exposure, strlen(gblivecamera_command_increase_exposure));
+        }
+        else if (event->key == InputKeyLeft){
+            const char gblivecamera_command_decrease_exposure[] = "gblivecamera -e\n";
+            furi_hal_uart_tx(FuriHalUartIdUSART1, (uint8_t*)gblivecamera_command_decrease_exposure, strlen(gblivecamera_command_decrease_exposure));
+        }
+        else if (event->key == InputKeyOk){
+            save_image(context);
+        }
+    }
+    return false;
+}
+
+static uint32_t gb_live_camera_exit(void* context) {
+    UNUSED(context);
+    return VIEW_NONE;
+}
+
+static void gb_live_camera_on_irq_cb(UartIrqEvent ev, uint8_t data, void* context) {
+    furi_assert(context);
+    UartEchoApp* app = context;
+
+    if(ev == UartIrqEventRXNE) {
+        furi_stream_buffer_send(app->rx_stream, &data, 1, 0);
+        furi_thread_flags_set(furi_thread_get_id(app->worker_thread), WorkerEventRx);
+    }
+}
+
+static void process_ringbuffer(UartDumpModel* model, uint8_t byte) {
+
+    //// 1. Phase: filling the ringbuffer
+    if (model->ringbuffer_index == 0 && byte != 'Y'){ // First char has to be 'Y' in the buffer.
+        return;
+    }
+    
+    if (model->ringbuffer_index == 1 && byte != ':'){ // Second char has to be ':' in the buffer or reset.
+        model->ringbuffer_index = 0;
+        process_ringbuffer(model, byte);
+        return;
+    }
+
+    model->row_ringbuffer[model->ringbuffer_index] = byte; // Assign current byte to the ringbuffer;
+    ++model->ringbuffer_index; // Increment the ringbuffer index
+
+    if (model->ringbuffer_index < RING_BUFFER_LENGTH){ // Let's wait 'till the buffer fills.
+        return;
+    }
+
+    //// 2. Phase: flushing the ringbuffer to the framebuffer
+    model->ringbuffer_index = 0; // Let's reset the ringbuffer
+    model->initialized = true; // We've successfully established the connection
+    size_t row_start_index = model->row_ringbuffer[2] * ROW_BUFFER_LENGTH; // Third char will determine the row number
+
+    if (row_start_index > LAST_ROW_INDEX){ // Failsafe
+        row_start_index = 0;
+    }
+
+    for (size_t i = 0; i < ROW_BUFFER_LENGTH; ++i) {
+        model->pixels[row_start_index + i] = model->row_ringbuffer[i+3]; // Writing the remaining 16 bytes into the frame buffer
+    }
+}
+
+static int32_t gb_live_camera_worker(void* context) {
+    furi_assert(context);
+    UartEchoApp* app = context;
+
+    while(1) {
+        uint32_t events =
+            furi_thread_flags_wait(WORKER_EVENTS_MASK, FuriFlagWaitAny, FuriWaitForever);
+        furi_check((events & FuriFlagError) == 0);
+
+        if(events & WorkerEventStop) break;
+        if(events & WorkerEventRx) {
+            size_t length = 0;
+            do {
+                size_t intended_data_size = 64;
+                uint8_t data[intended_data_size];
+                length = furi_stream_buffer_receive(app->rx_stream, data, intended_data_size, 0);
+
+                if(length > 0) {
+                    with_view_model(
+                        app->view,
+                        UartDumpModel * model, {
+                            for(size_t i = 0; i < length; i++) {
+                                process_ringbuffer(model, data[i]);
+                            }
+                        },
+                        false);
+                }
+            } while(length > 0);
+
+            notification_message(app->notification, &sequence_notification);
+            with_view_model(app->view, UartDumpModel * model, { UNUSED(model); }, true);
+        }
+    }
+
+    return 0;
+}
+
+static UartEchoApp* gb_live_camera_app_alloc() {
+    UartEchoApp* app = malloc(sizeof(UartEchoApp));
+
+    app->rx_stream = furi_stream_buffer_alloc(2048, 1);
+
+    // Gui
+    app->gui = furi_record_open(RECORD_GUI);
+    app->notification = furi_record_open(RECORD_NOTIFICATION);
+
+    // View dispatcher
+    app->view_dispatcher = view_dispatcher_alloc();
+    view_dispatcher_enable_queue(app->view_dispatcher);
+    view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
+
+    // Views
+    app->view = view_alloc();
+    view_set_context(app->view, app);
+    view_set_draw_callback(app->view, gb_live_camera_view_draw_callback);
+    view_set_input_callback(app->view, gb_live_camera_view_input_callback);
+    view_allocate_model(app->view, ViewModelTypeLocking, sizeof(UartDumpModel));
+
+    with_view_model(
+        app->view,
+        UartDumpModel * model,
+        {
+            for(size_t i = 0; i < FRAME_BUFFER_LENGTH; i++) {
+                model->pixels[i] = 0;
+            }
+        },
+        true);
+
+    view_set_previous_callback(app->view, gb_live_camera_exit);
+    view_dispatcher_add_view(app->view_dispatcher, 0, app->view);
+    view_dispatcher_switch_to_view(app->view_dispatcher, 0);
+
+    app->worker_thread = furi_thread_alloc_ex("UsbUartWorker", 2048, gb_live_camera_worker, app);
+    furi_thread_start(app->worker_thread);
+
+    // Enable uart listener
+    furi_hal_console_disable();
+    furi_hal_uart_set_br(FuriHalUartIdUSART1, 115200);
+    furi_hal_uart_set_irq_cb(FuriHalUartIdUSART1, gb_live_camera_on_irq_cb, app);
+  
+
+    //  furi_hal_uart_init(FuriHalUartIdLPUART1, 115200);
+    // furi_hal_uart_set_br(FuriHalUartIdLPUART1, 115200);
+    // furi_hal_uart_set_irq_cb(FuriHalUartIdLPUART1, gb_live_camera_on_irq_cb, app);
+
+    const char gblivecamera_command[] = "gblivecamera\n\n";
+    // furi_hal_uart_tx(FuriHalUartIdLPUART1, (uint8_t*)gblivecamera_command, strlen(gblivecamera_command));
+    furi_hal_uart_tx(FuriHalUartIdUSART1, (uint8_t*)gblivecamera_command, strlen(gblivecamera_command));
+
+    // }
+    // furi_delay_ms(1);
+    return app;
+}
+
+static void gb_live_camera_app_free(UartEchoApp* app) {
+    furi_assert(app);
+    const char stop_command[] = "stopgblivecamera\n";
+    // furi_hal_uart_tx(FuriHalUartIdLPUART1, (uint8_t*)stop_command, strlen(stop_command));
+    furi_hal_uart_tx(FuriHalUartIdUSART1, (uint8_t*)stop_command, strlen(stop_command));
+    furi_delay_ms(500); 
+    // furi_hal_console_enable(); // this will also clear IRQ callback so thread is no longer referenced
+
+    furi_thread_flags_set(furi_thread_get_id(app->worker_thread), WorkerEventStop);
+    furi_thread_join(app->worker_thread);
+    furi_thread_free(app->worker_thread);
+
+    // Free views
+    view_dispatcher_remove_view(app->view_dispatcher, 0);
+
+    view_free(app->view);
+    view_dispatcher_free(app->view_dispatcher);
+
+    // Close gui record
+    furi_record_close(RECORD_GUI);
+    furi_record_close(RECORD_NOTIFICATION);
+    app->gui = NULL;
+
+    furi_stream_buffer_free(app->rx_stream);
+
+    // Free rest
+    free(app);
+}
+
+int32_t gb_live_camera_app(void* p) {
+    UNUSED(p);
+
+    UartEchoApp* app = gb_live_camera_app_alloc();
+    view_dispatcher_run(app->view_dispatcher);
+    gb_live_camera_app_free(app);
+    
+    furi_hal_power_disable_otg();
+
+    return 0;
+}

gb_live_camera.h

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+// TODO
+// (DONE) Fix performance when not being charged
+// (DONE) Add UART command parsing to Esp32
+// (DONE) Prepare application and icon on github
+// (DONE) Write snapshots to SD card
+// 5. Set a constant refresh rate to the Flipper's display
+// 6. Emulate grayscale
+// 7. Photo browser app
+
+#include <furi.h>
+#include <furi_hal.h>
+#include <gui/gui.h>
+#include <gui/icon_i.h>
+#include <notification/notification.h>
+#include <notification/notification_messages.h>
+#include <gui/elements.h>
+#include <furi_hal_uart.h>
+#include <furi_hal_console.h>
+#include <gui/view_dispatcher.h>
+#include <gui/modules/dialog_ex.h>
+#include <storage/filesystem_api_defines.h>
+#include <storage/storage.h>
+
+#define THREAD_ALLOC 2048
+
+#define FRAME_WIDTH 128
+#define FRAME_HEIGTH 64
+#define FRAME_BIT_DEPTH 1
+#define FRAME_BUFFER_LENGTH (FRAME_WIDTH * FRAME_HEIGTH * FRAME_BIT_DEPTH / 8) // 128*64*1 / 8 = 1024
+#define ROW_BUFFER_LENGTH (FRAME_WIDTH / 8) // 128/8 = 16
+#define LAST_ROW_INDEX (FRAME_BUFFER_LENGTH - ROW_BUFFER_LENGTH) // 1024 - 16 = 1008
+#define RING_BUFFER_LENGTH (ROW_BUFFER_LENGTH + 3) // ROW_BUFFER_LENGTH + Header => 16 + 3 = 19
+#define BITMAP_HEADER_LENGTH 62
+#define IMAGE_FILE_DIRECTORY_PATH EXT_PATH("DCIM")
+
+static const unsigned char bitmap_header[BITMAP_HEADER_LENGTH] = {
+	0x42, 0x4D, 0x3E, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3E, 0x00,
+	0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x40, 0x00,
+	0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF,
+	0xFF, 0x00
+};
+
+const uint8_t _I_DolphinCommon_56x48_0[] = {0x01,0x00,0xdf,0x00,0x00,0x1f,0xfe,0x0e,0x05,0x3f,0x04,0x06,0x78,0x06,0x30,0x20,0xf8,0x00,0xc6,0x12,0x1c,0x04,0x0c,0x0a,0x38,0x08,0x08,0x0c,0x60,0xc0,0x21,0xe0,0x04,0x0a,0x18,0x02,0x1b,0x00,0x18,0xa3,0x00,0x21,0x90,0x01,0x8a,0x20,0x02,0x19,0x80,0x18,0x80,0x64,0x09,0x20,0x89,0x81,0x8c,0x3e,0x41,0xe2,0x80,0x50,0x00,0x43,0x08,0x01,0x0c,0xfc,0x68,0x40,0x61,0xc0,0x50,0x30,0x00,0x63,0xa0,0x7f,0x80,0xc4,0x41,0x19,0x07,0xff,0x02,0x06,0x18,0x24,0x03,0x41,0xf3,0x2b,0x10,0x19,0x38,0x10,0x30,0x31,0x7f,0xe0,0x34,0x08,0x30,0x19,0x60,0x80,0x65,0x86,0x0a,0x4c,0x0c,0x30,0x81,0xb9,0x41,0xa0,0x54,0x08,0xc7,0xe2,0x06,0x8a,0x18,0x25,0x02,0x21,0x0f,0x19,0x88,0xd8,0x6e,0x1b,0x01,0xd1,0x1b,0x86,0x39,0x66,0x3a,0xa4,0x1a,0x50,0x06,0x48,0x18,0x18,0xd0,0x03,0x01,0x41,0x98,0xcc,0x60,0x39,0x01,0x49,0x2d,0x06,0x03,0x50,0xf8,0x40,0x3e,0x02,0xc1,0x82,0x86,0xc7,0xfe,0x0f,0x28,0x2c,0x91,0xd2,0x90,0x9a,0x18,0x19,0x3e,0x6d,0x73,0x12,0x16,0x00,0x32,0x49,0x72,0xc0,0x7e,0x5d,0x44,0xba,0x2c,0x08,0xa4,0xc8,0x82,0x06,0x17,0xe0,0x81,0x90,0x2a,0x40,0x61,0xe1,0xa2,0x44,0x0c,0x76,0x2b,0xe8,0x89,0x26,0x43,0x83,0x31,0x8c,0x78,0x0c,0xb0,0x48,0x10,0x1a,0xe0,0x00,0x63,};
+const uint8_t* const _I_DolphinCommon_56x48[] = {_I_DolphinCommon_56x48_0};
+const Icon I_DolphinCommon_56x48 = {.width=56,.height=48,.frame_count=1,.frame_rate=0,.frames=_I_DolphinCommon_56x48};
+
+typedef struct UartDumpModel UartDumpModel;
+
+typedef struct {
+    Gui* gui;
+    Storage* storage;
+    NotificationApp* notification;
+    ViewDispatcher* view_dispatcher;
+    View* view;
+    FuriThread* worker_thread;
+    FuriStreamBuffer* rx_stream;
+} UartEchoApp;
+
+struct UartDumpModel {
+    uint8_t pixels[FRAME_BUFFER_LENGTH];
+
+    File* cameraSav;
+    bool initialized;
+    int page;
+    //bool marauderInitialized;
+    uint8_t row_ringbuffer[RING_BUFFER_LENGTH];
+    uint8_t ringbuffer_index;
+};
+
+typedef enum {
+    WorkerEventReserved = (1 << 0), // Reserved for StreamBuffer internal event
+    WorkerEventStop = (1 << 1),
+    WorkerEventRx = (1 << 2),
+} WorkerEventFlags;
+
+#define WORKER_EVENTS_MASK (WorkerEventStop | WorkerEventRx)
+
+const NotificationSequence sequence_notification = {
+    &message_display_backlight_on,
+    &message_delay_10,
+    NULL,
+};