Config mode (#1433)

* Allow code to run without a token
* Reverted submodule change by mistake
* WIP force tcxo
* Added check to hide if not an R9
* Fixed comments
* Updated name
* Fixed crashing on TCXO switching
* Fixed the reboot issue
* Updated boot order
* Cleaned up comments
* added new recovery mode
* added IO
* implemented cpld mode change
* whitespace change
* renamed config mode
* inverted logic
* removed r9 dependency
* added disable external tcxo option to config mode
* fixed CLKIN detection for r9
* integrated tcxo setting into clock selection
Co-authored-by @jLynx

firmware/application/config_mode.hpp

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __CONFIG_MODE_H__
+#define __CONFIG_MODE_H__
+
+#include "ch.h"
+
+#include "portapack.hpp"
+#include "portapack_shared_memory.hpp"
+#include "portapack_persistent_memory.hpp"
+
+void config_mode_set();
+bool config_mode_should_enter();
+void config_mode_clear();
+
+void config_mode_run();
+
+#endif /* __CONFIG_MODE_H__ */