chore(radio): unify the bootloader UI code (#6189)

Co-authored-by: Richard Li <richard.li@ces.hk>

radio/src/bootloader/boot.h

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) EdgeTX
+ *
+ * Based on code named
+ *   opentx - https://github.com/opentx/opentx
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include "stamp.h"
+#include "keys.h"
+
+#include "hal/flash_driver.h"
+
+#if LCD_W < 212
+  #if defined(VERSION_TAG)
+    #define BOOTLOADER_TITLE               " Bootloader - " VERSION_TAG
+  #else
+    #define BOOTLOADER_TITLE               " Bootloader " VERSION "-" VERSION_SUFFIX
+  #endif
+#else
+  #if defined(VERSION_TAG)
+    #define BOOTLOADER_TITLE               " EdgeTX Bootloader - " VERSION_TAG
+  #else
+    #define BOOTLOADER_TITLE               " EdgeTX Bootloader - " VERSION "-" VERSION_SUFFIX
+  #endif
+#endif
+
+#define DISPLAY_CHAR_WIDTH             (LCD_COLS+4)
+
+// Bootloader states
+enum BootloaderState {
+  ST_START,
+  ST_FLASH_MENU,
+  ST_DIR_CHECK,
+  ST_OPEN_DIR,
+  ST_FILE_LIST,
+  ST_FLASH_CHECK,
+  ST_FLASHING,
+  ST_FLASH_DONE,
+  ST_RESTORE_MENU,
+  ST_USB,
+#if defined(SPI_FLASH)
+  ST_CLEAR_FLASH_CHECK,
+  ST_CLEAR_FLASH,
+#endif
+  ST_RADIO_MENU,
+  ST_REBOOT,
+};
+
+// interactive bootloader
+void bootloaderMenu();
+
+// non-interactive UF2 bootloader
+void bootloaderUF2();
+
+// non-interactive DFU bootloader
+void bootloaderDFU();
+
+// Declarations of functions that need to be implemented
+// for each target with a bootloader
+
+// On bootloader start after lcdInit()
+void bootloaderInitScreen();
+
+// Depending on the state, up to two optional parameters are passed.
+// See boot.cpp/main for more details
+void bootloaderDrawScreen(BootloaderState st, int opt, const char* str = nullptr);
+
+// Once for each file in a filename list on screen
+void bootloaderDrawFilename(const char* str, uint8_t line, bool selected);
+
+// get menu item count for main menu, by adding 1 to the baseCount, when a radio specific menu is used
+uint32_t bootloaderGetMenuItemCount(int baseCount);
+
+// when a radio specifc menu is used, all events are forwarded to that menu code
+// returns true on submenu exit
+bool bootloaderRadioMenu(uint32_t menuItem, event_t event);
+
+void bootloaderDrawDFUScreen();
+
+void sdInit();
+void blExit();