Expansion settings singleton

applications/services/expansion/expansion.c

@@ -1,4 +1,5 @@
 #include "expansion.h"
+#include "expansion_i.h"
 
 #include <furi_hal_power.h>
 #include <furi_hal_serial.h>
@@ -53,6 +54,8 @@ struct Expansion {
     FuriHalSerialId serial_id;
     FuriHalSerialHandle* serial_handle;
     RpcSession* rpc_session;
+
+    ExpansionSettings settings;
 };
 
 static void expansion_detect_callback(void* context);
@@ -394,10 +397,9 @@ void expansion_on_system_start(void* arg) {
     Expansion* instance = expansion_alloc();
     furi_record_create(RECORD_EXPANSION, instance);
 
-    ExpansionSettings settings = {};
-    expansion_settings_load(&settings);
-    if(settings.uart_index < FuriHalSerialIdMax) {
-        expansion_enable(instance, settings.uart_index);
+    expansion_settings_load(&instance->settings);
+    if(instance->settings.uart_index < FuriHalSerialIdMax) {
+        expansion_enable(instance, instance->settings.uart_index);
     }
 }
 
@@ -434,3 +436,7 @@ void expansion_disable(Expansion* instance) {
 
     furi_mutex_release(instance->state_mutex);
 }
+
+ExpansionSettings* expansion_get_settings(Expansion* instance) {
+    return &instance->settings;
+}

applications/services/expansion/expansion_i.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include "expansion_settings.h"
+#include "expansion.h"
+
+ExpansionSettings* expansion_get_settings(Expansion* instance);

applications/settings/expansion_settings_app/expansion_settings_app.c

@@ -10,7 +10,7 @@ static void expansion_settings_app_uart_changed(VariableItem* item) {
     ExpansionSettingsApp* app = variable_item_get_context(item);
     const uint8_t index = variable_item_get_current_value_index(item);
     variable_item_set_current_value_text(item, expansion_uart_text[index]);
-    app->settings.uart_index = index;
+    app->settings->uart_index = index;
 
     if(index < FuriHalSerialIdMax) {
         expansion_enable(app->expansion, index);
@@ -27,10 +27,9 @@ static uint32_t expansion_settings_app_exit(void* context) {
 static ExpansionSettingsApp* expansion_settings_app_alloc() {
     ExpansionSettingsApp* app = malloc(sizeof(ExpansionSettingsApp));
 
-    expansion_settings_load(&app->settings);
-
     app->gui = furi_record_open(RECORD_GUI);
     app->expansion = furi_record_open(RECORD_EXPANSION);
+    app->settings = expansion_get_settings(app->expansion);
 
     app->view_dispatcher = view_dispatcher_alloc();
     view_dispatcher_enable_queue(app->view_dispatcher);
@@ -49,7 +48,7 @@ static ExpansionSettingsApp* expansion_settings_app_alloc() {
         COUNT_OF(expansion_uart_text),
         expansion_settings_app_uart_changed,
         app);
-    value_index = app->settings.uart_index;
+    value_index = app->settings->uart_index;
     variable_item_set_current_value_index(item, value_index);
     variable_item_set_current_value_text(item, expansion_uart_text[value_index]);
 
@@ -68,7 +67,7 @@ static ExpansionSettingsApp* expansion_settings_app_alloc() {
 static void expansion_settings_app_free(ExpansionSettingsApp* app) {
     furi_assert(app);
 
-    expansion_settings_save(&app->settings);
+    expansion_settings_save(app->settings);
 
     view_dispatcher_remove_view(app->view_dispatcher, ExpansionSettingsViewVarItemList);
     variable_item_list_free(app->var_item_list);

applications/settings/expansion_settings_app/expansion_settings_app.h

@@ -8,6 +8,7 @@
 #include <gui/modules/variable_item_list.h>
 
 #include <expansion/expansion.h>
+#include <expansion/expansion_i.h>
 #include <expansion/expansion_settings.h>
 
 typedef struct {
@@ -15,7 +16,7 @@ typedef struct {
     ViewDispatcher* view_dispatcher;
     VariableItemList* var_item_list;
     Expansion* expansion;
-    ExpansionSettings settings;
+    ExpansionSettings* settings;
 } ExpansionSettingsApp;
 
 typedef enum {