[FL-1884] GPIO application (#732)

* gpio: rename gpio application
* bq25896: add reading OTG config
* furi-hal-power: add is_otg_enabled API
* gpio: introduce new GPIO app, add OTG enable / disable
* variable-item-list: add enter callback
* gpio: add output test view and scene
* gpio app: fix GpioItemTester -> GpioItemTest

Co-authored-by: あく <alleteam@gmail.com>

applications/gpio/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,
+};

applications/gpio/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

applications/gpio/scenes/gpio_scene_config.h

@@ -0,0 +1,2 @@
+ADD_SCENE(gpio, start, Start)
+ADD_SCENE(gpio, test, Test)

applications/gpio/scenes/gpio_scene_start.c

@@ -0,0 +1,92 @@
+#include "../gpio_app_i.h"
+#include "furi-hal-power.h"
+
+#define GPIO_SCENE_START_CUSTOM_EVENT_OTG_OFF (0UL)
+#define GPIO_SCENE_START_CUSTOM_EVENT_OTG_ON (1UL)
+#define GPIO_SCENE_START_CUSTOM_EVENT_TEST (2UL)
+
+enum GpioItem {
+    GpioItemOtg,
+    GpioItemTest,
+};
+
+enum GpioOtg {
+    GpioOtgOff,
+    GpioOtgOn,
+    GpioOtgSettingsNum,
+};
+
+const char* const gpio_otg_text[GpioOtgSettingsNum] = {
+    "Off",
+    "On",
+};
+
+static void gpio_scene_start_var_list_enter_callback(void* context, uint32_t index) {
+    furi_assert(context);
+    GpioApp* app = context;
+    if(index == GpioItemTest) {
+        view_dispatcher_send_custom_event(
+            app->view_dispatcher, GPIO_SCENE_START_CUSTOM_EVENT_TEST);
+    }
+}
+
+static void gpio_scene_start_var_list_change_callback(VariableItem* item) {
+    GpioApp* app = variable_item_get_context(item);
+    uint8_t index = variable_item_get_current_value_index(item);
+
+    variable_item_set_current_value_text(item, gpio_otg_text[index]);
+    if(index == GpioOtgOff) {
+        view_dispatcher_send_custom_event(
+            app->view_dispatcher, GPIO_SCENE_START_CUSTOM_EVENT_OTG_OFF);
+    } else if(index == GpioOtgOn) {
+        view_dispatcher_send_custom_event(
+            app->view_dispatcher, GPIO_SCENE_START_CUSTOM_EVENT_OTG_ON);
+    }
+}
+
+void gpio_scene_start_on_enter(void* context) {
+    GpioApp* app = context;
+    VariableItemList* var_item_list = app->var_item_list;
+
+    VariableItem* item;
+    variable_item_list_set_enter_callback(
+        var_item_list, gpio_scene_start_var_list_enter_callback, app);
+    item = variable_item_list_add(
+        var_item_list,
+        "5V on GPIO",
+        GpioOtgSettingsNum,
+        gpio_scene_start_var_list_change_callback,
+        app);
+    if(furi_hal_power_is_otg_enabled()) {
+        variable_item_set_current_value_index(item, GpioOtgOn);
+        variable_item_set_current_value_text(item, gpio_otg_text[GpioOtgOn]);
+    } else {
+        variable_item_set_current_value_index(item, GpioOtgOff);
+        variable_item_set_current_value_text(item, gpio_otg_text[GpioOtgOff]);
+    }
+    variable_item_list_add(var_item_list, "GPIO tester", 0, NULL, NULL);
+
+    view_dispatcher_switch_to_view(app->view_dispatcher, GpioAppViewVarItemList);
+}
+
+bool gpio_scene_start_on_event(void* context, SceneManagerEvent event) {
+    GpioApp* app = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GPIO_SCENE_START_CUSTOM_EVENT_OTG_ON) {
+            furi_hal_power_enable_otg();
+        } else if(event.event == GPIO_SCENE_START_CUSTOM_EVENT_OTG_OFF) {
+            furi_hal_power_disable_otg();
+        } else if(event.event == GPIO_SCENE_START_CUSTOM_EVENT_TEST) {
+            scene_manager_next_scene(app->scene_manager, GpioSceneTest);
+        }
+        consumed = true;
+    }
+    return consumed;
+}
+
+void gpio_scene_start_on_exit(void* context) {
+    GpioApp* app = context;
+    variable_item_list_clean(app->var_item_list);
+}

applications/gpio/scenes/gpio_scene_test.c

@@ -0,0 +1,27 @@
+#include "../gpio_app_i.h"
+
+void gpio_scene_test_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_test_on_enter(void* context) {
+    GpioApp* app = context;
+    gpio_item_configure_all_pins(GpioModeOutputPushPull);
+    gpio_test_set_ok_callback(app->gpio_test, gpio_scene_test_ok_callback, app);
+    view_dispatcher_switch_to_view(app->view_dispatcher, GpioAppViewGpioTest);
+}
+
+bool gpio_scene_test_on_event(void* context, SceneManagerEvent event) {
+    return false;
+}
+
+void gpio_scene_test_on_exit(void* context) {
+    gpio_item_configure_all_pins(GpioModeAnalog);
+}