Add the whole app

README.md

@@ -1,2 +1,6 @@
 # flipperzero-gpioreader
-This is a fork of the `gpio` app built into the flipper, with added functionality to read GPIO inputs
+This is a fork of the `gpio` app built into the flipper, with added functionality to read GPIO inputs.
+
+Supports pulling high or low.
+
+Does not (yet) support analog reads.

application.fam

@@ -0,0 +1,12 @@
+App(
+    appid="gpioreader",
+    name="GPIO Reader",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="gpio_app",
+    cdefines=["APP_GPIOREADER"],
+    requires=["gui"],
+    stack_size=1 * 1024,
+    order=50,
+    fap_libs=["assets"],
+    fap_category="GPIO",
+)

gpio_app.c

@@ -0,0 +1,111 @@
+#include "gpio_app_i.h"
+
+#include <furi.h>
+#include <furi_hal.h>
+
+static bool gpio_app_custom_event_callback(void* context, uint32_t event) {
+    furi_assert(context);
+    GpioApp* app = context;
+    return scene_manager_handle_custom_event(app->scene_manager, event);
+}
+
+static bool gpio_app_back_event_callback(void* context) {
+    furi_assert(context);
+    GpioApp* app = context;
+    return scene_manager_handle_back_event(app->scene_manager);
+}
+
+static void gpio_app_tick_event_callback(void* context) {
+    furi_assert(context);
+    GpioApp* app = context;
+    scene_manager_handle_tick_event(app->scene_manager);
+}
+
+GpioApp* gpio_app_alloc() {
+    GpioApp* app = malloc(sizeof(GpioApp));
+
+    app->gui = furi_record_open(RECORD_GUI);
+
+    app->view_dispatcher = view_dispatcher_alloc();
+    app->scene_manager = scene_manager_alloc(&gpio_scene_handlers, app);
+    view_dispatcher_enable_queue(app->view_dispatcher);
+    view_dispatcher_set_event_callback_context(app->view_dispatcher, app);
+
+    view_dispatcher_set_custom_event_callback(
+        app->view_dispatcher, gpio_app_custom_event_callback);
+    view_dispatcher_set_navigation_event_callback(
+        app->view_dispatcher, gpio_app_back_event_callback);
+    view_dispatcher_set_tick_event_callback(
+        app->view_dispatcher, gpio_app_tick_event_callback, 100);
+
+    view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
+
+    app->notifications = furi_record_open(RECORD_NOTIFICATION);
+
+    app->var_item_list = variable_item_list_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher,
+        GpioAppViewVarItemList,
+        variable_item_list_get_view(app->var_item_list));
+    app->gpio_test = gpio_test_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher, GpioAppViewGpioTest, gpio_test_get_view(app->gpio_test));
+    app->gpio_reader = gpio_reader_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher, GpioAppViewGpioReader, gpio_reader_get_view(app->gpio_reader));
+
+    app->widget = widget_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher, GpioAppViewUsbUartCloseRpc, widget_get_view(app->widget));
+
+    app->gpio_usb_uart = gpio_usb_uart_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher, GpioAppViewUsbUart, gpio_usb_uart_get_view(app->gpio_usb_uart));
+
+    view_dispatcher_add_view(
+        app->view_dispatcher,
+        GpioAppViewUsbUartCfg,
+        variable_item_list_get_view(app->var_item_list));
+
+    scene_manager_next_scene(app->scene_manager, GpioSceneStart);
+
+    return app;
+}
+
+void gpio_app_free(GpioApp* app) {
+    furi_assert(app);
+
+    // Views
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewVarItemList);
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewGpioTest);
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewGpioReader);
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewUsbUart);
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewUsbUartCfg);
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewUsbUartCloseRpc);
+    variable_item_list_free(app->var_item_list);
+    widget_free(app->widget);
+    gpio_test_free(app->gpio_test);
+    gpio_reader_free(app->gpio_reader);
+    gpio_usb_uart_free(app->gpio_usb_uart);
+
+    // View dispatcher
+    view_dispatcher_free(app->view_dispatcher);
+    scene_manager_free(app->scene_manager);
+
+    // Close records
+    furi_record_close(RECORD_GUI);
+    furi_record_close(RECORD_NOTIFICATION);
+
+    free(app);
+}
+
+int32_t gpio_app(void* p) {
+    UNUSED(p);
+    GpioApp* gpio_app = gpio_app_alloc();
+
+    view_dispatcher_run(gpio_app->view_dispatcher);
+
+    gpio_app_free(gpio_app);
+
+    return 0;
+}

gpio_app.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct GpioApp GpioApp;
+
+#ifdef __cplusplus
+}
+#endif

gpio_app_i.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include "gpio_app.h"
+#include "gpio_item.h"
+#include "scenes/gpio_scene.h"
+#include "gpio_custom_event.h"
+#include "usb_uart_bridge.h"
+
+#include <gui/gui.h>
+#include <gui/view_dispatcher.h>
+#include <gui/scene_manager.h>
+#include <gui/modules/submenu.h>
+#include <notification/notification_messages.h>
+#include <gui/modules/variable_item_list.h>
+#include <gui/modules/widget.h>
+#include "views/gpio_test.h"
+#include "views/gpio_reader.h"
+#include "views/gpio_usb_uart.h"
+#include <assets_icons.h>
+
+struct GpioApp {
+    Gui* gui;
+    NotificationApp* notifications;
+    ViewDispatcher* view_dispatcher;
+    SceneManager* scene_manager;
+    Widget* widget;
+
+    VariableItemList* var_item_list;
+    VariableItem* var_item_flow;
+    GpioTest* gpio_test;
+    GpioReader* gpio_reader;
+    GpioUsbUart* gpio_usb_uart;
+    UsbUartBridge* usb_uart_bridge;
+    UsbUartConfig* usb_uart_cfg;
+};
+
+typedef enum {
+    GpioAppViewVarItemList,
+    GpioAppViewGpioTest,
+    GpioAppViewGpioReader,
+    GpioAppViewUsbUart,
+    GpioAppViewUsbUartCfg,
+    GpioAppViewUsbUartCloseRpc,
+} GpioAppView;

gpio_custom_event.h

@@ -0,0 +1,14 @@
+#pragma once
+
+typedef enum {
+    GpioStartEventOtgOff = 0,
+    GpioStartEventOtgOn,
+    GpioStartEventManualControl,
+    GpioStartEventReader,
+    GpioStartEventUsbUart,
+
+    GpioCustomEventErrorBack,
+
+    GpioUsbUartEventConfig,
+    GpioUsbUartEventConfigSet,
+} GpioCustomEvent;

gpio_item.c

@@ -0,0 +1,60 @@
+#include "gpio_item.h"
+
+#include <furi_hal_resources.h>
+
+typedef struct {
+    const char* name;
+    const GpioPin* pin;
+} GpioItem;
+
+static const GpioItem gpio_item[GPIO_ITEM_COUNT] = {
+    {"1.2: PA7", &gpio_ext_pa7},
+    {"1.3: PA6", &gpio_ext_pa6},
+    {"1.4: PA4", &gpio_ext_pa4},
+    {"1.5: PB3", &gpio_ext_pb3},
+    {"1.6: PB2", &gpio_ext_pb2},
+    {"1.7: PC3", &gpio_ext_pc3},
+    {"2.7: PC1", &gpio_ext_pc1},
+    {"2.8: PC0", &gpio_ext_pc0},
+};
+
+void gpio_item_configure_pin(uint8_t index, GpioMode mode, GpioPull pull) {
+    furi_assert(index < GPIO_ITEM_COUNT);
+    furi_hal_gpio_write(gpio_item[index].pin, false);
+    furi_hal_gpio_init(gpio_item[index].pin, mode, pull, GpioSpeedVeryHigh);
+}
+
+void gpio_item_configure_all_pins(GpioMode mode) {
+    GpioPull pull = GpioPullNo;
+    if(mode == GpioModeInput){
+        pull = GpioPullDown;
+    }
+    for(uint8_t i = 0; i < GPIO_ITEM_COUNT; i++) {
+        gpio_item_configure_pin(i, mode, pull);
+    }
+}
+
+void gpio_item_set_pin(uint8_t index, bool level) {
+    furi_assert(index < GPIO_ITEM_COUNT);
+    furi_hal_gpio_write(gpio_item[index].pin, level);
+}
+
+bool gpio_item_get_pin(uint8_t index) {
+    furi_assert(index < GPIO_ITEM_COUNT);
+    return furi_hal_gpio_read(gpio_item[index].pin);
+}
+
+void gpio_item_set_all_pins(bool level) {
+    for(uint8_t i = 0; i < GPIO_ITEM_COUNT; i++) {
+        gpio_item_set_pin(i, level);
+    }
+}
+
+const char* gpio_item_get_pin_name(uint8_t index) {
+    furi_assert(index < GPIO_ITEM_COUNT + 1);
+    if(index == GPIO_ITEM_COUNT) {
+        return "ALL";
+    } else {
+        return gpio_item[index].name;
+    }
+}

gpio_item.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <furi_hal_gpio.h>
+
+#define GPIO_ITEM_COUNT 8
+
+void gpio_item_configure_pin(uint8_t index, GpioMode mode, GpioPull pull);
+
+void gpio_item_configure_all_pins(GpioMode mode);
+
+void gpio_item_set_pin(uint8_t index, bool level);
+
+void gpio_item_set_all_pins(bool level);
+
+const char* gpio_item_get_pin_name(uint8_t index);
+
+bool gpio_item_get_pin(uint8_t index);

scenes/gpio_scene.c

@@ -0,0 +1,30 @@
+#include "gpio_scene.h"
+
+// Generate scene on_enter handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_enter,
+void (*const gpio_scene_on_enter_handlers[])(void*) = {
+#include "gpio_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Generate scene on_event handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_event,
+bool (*const gpio_scene_on_event_handlers[])(void* context, SceneManagerEvent event) = {
+#include "gpio_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Generate scene on_exit handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_exit,
+void (*const gpio_scene_on_exit_handlers[])(void* context) = {
+#include "gpio_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Initialize scene handlers configuration structure
+const SceneManagerHandlers gpio_scene_handlers = {
+    .on_enter_handlers = gpio_scene_on_enter_handlers,
+    .on_event_handlers = gpio_scene_on_event_handlers,
+    .on_exit_handlers = gpio_scene_on_exit_handlers,
+    .scene_num = GpioSceneNum,
+};

scenes/gpio_scene.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <gui/scene_manager.h>
+
+// Generate scene id and total number
+#define ADD_SCENE(prefix, name, id) GpioScene##id,
+typedef enum {
+#include "gpio_scene_config.h"
+    GpioSceneNum,
+} GpioScene;
+#undef ADD_SCENE
+
+extern const SceneManagerHandlers gpio_scene_handlers;
+
+// Generate scene on_enter handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_enter(void*);
+#include "gpio_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_event handlers declaration
+#define ADD_SCENE(prefix, name, id) \
+    bool prefix##_scene_##name##_on_event(void* context, SceneManagerEvent event);
+#include "gpio_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_exit handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_exit(void* context);
+#include "gpio_scene_config.h"
+#undef ADD_SCENE

scenes/gpio_scene_config.h

@@ -0,0 +1,6 @@
+ADD_SCENE(gpio, start, Start)
+ADD_SCENE(gpio, test, Test)
+ADD_SCENE(gpio, reader, Reader)
+ADD_SCENE(gpio, usb_uart, UsbUart)
+ADD_SCENE(gpio, usb_uart_cfg, UsbUartCfg)
+ADD_SCENE(gpio, usb_uart_close_rpc, UsbUartCloseRpc)

scenes/gpio_scene_reader.c

@@ -0,0 +1,30 @@
+#include "../gpio_app_i.h"
+
+void gpio_scene_reader_ok_callback(InputType type, void* context) {
+    furi_assert(context);
+    GpioApp* app = context;
+
+    if(type == InputTypePress) {
+        notification_message(app->notifications, &sequence_set_green_255);
+    } else if(type == InputTypeRelease) {
+        notification_message(app->notifications, &sequence_reset_green);
+    }
+}
+
+void gpio_scene_reader_on_enter(void* context) {
+    GpioApp* app = context;
+    gpio_item_configure_all_pins(GpioModeInput);
+    gpio_reader_set_ok_callback(app->gpio_reader, gpio_scene_reader_ok_callback, app);
+    view_dispatcher_switch_to_view(app->view_dispatcher, GpioAppViewGpioReader);
+}
+
+bool gpio_scene_reader_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
+    return false;
+}
+
+void gpio_scene_reader_on_exit(void* context) {
+    UNUSED(context);
+    gpio_item_configure_all_pins(GpioModeAnalog);
+}