updater: Added skeleton app

Author: ducalex

retro-go.code-workspace

@@ -27,6 +27,9 @@
 		{
 			"path": "tools"
 		},
+		{
+			"path": "updater"
+		},
 		{
 			"path": ".",
 			"name": "root"

rg_tool.py

@@ -16,6 +16,7 @@
 PROJECT_ICON = os.getenv("PROJECT_ICON", "assets/icon.raw")
 PROJECT_APPS = {
   # Project name  Type, SubType, Size
+  'updater':      [0, 0, 524288],
   'launcher':     [0, 0, 983040],
   'retro-core':   [0, 0, 983040],
   'prboom-go':    [0, 0, 851968],

updater/CMakeLists.txt

@@ -0,0 +1,5 @@
+cmake_minimum_required(VERSION 3.5)
+set(COMPONENTS "main retro-go")
+set(RG_ENABLE_NETWORKING 0)
+include(../base.cmake)
+project(updater)

updater/main/CMakeLists.txt

@@ -0,0 +1,4 @@
+set(COMPONENT_SRCDIRS ".")
+set(COMPONENT_ADD_INCLUDEDIRS ".")
+register_component()
+rg_setup_compile_options(-Os)

updater/main/main.c

@@ -0,0 +1,41 @@
+#include <rg_system.h>
+#include <sys/time.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <esp_spi_flash.h>
+#include <esp_partition.h>
+
+#ifdef RG_UPDATER_DOWNLOAD_LOCATION
+#define DOWNLOAD_LOCATION RG_UPDATER_DOWNLOAD_LOCATION
+#else
+#define DOWNLOAD_LOCATION RG_BASE_PATH
+#endif
+
+void app_main(void)
+{
+    rg_app_t *app = rg_system_init(32000, NULL, NULL);
+
+    if (!rg_storage_ready())
+    {
+        rg_display_clear(C_SKY_BLUE);
+        rg_gui_alert(_("SD Card Error"), _("Storage mount failed.\nMake sure the card is FAT32."));
+        // What do at this point? Reboot? Switch back to launcher?
+        goto launcher;
+    }
+
+    // Hopefully we'll receive the filename from the launcher which has a nicer file browser
+    const char *filename = app->romPath;
+
+    if (!filename || !rg_storage_exists(filename))
+        filename = rg_gui_file_picker(_("Select update"), DOWNLOAD_LOCATION, NULL, true);
+    if (!filename)
+        goto launcher;
+
+    RG_LOGI("Filename: %s", filename);
+
+launcher:
+    rg_system_switch_app(RG_APP_LAUNCHER, 0, 0, 0, 0);
+}