From 25b75d0852e540fb03d46fcef8d9da76dbdf5e7a Mon Sep 17 00:00:00 2001
From: Giampaolo Mancini <giampaolo@trampolineup.com>
Date: Tue, 30 Jun 2020 09:24:23 +0200
Subject: [PATCH] Add support for storage via U-201 filsystem

---
 src/utility/ota/OTAStorage_MKRGSM.cpp | 73 +++++++++++++++++++++++++++
 src/utility/ota/OTAStorage_MKRGSM.h   | 54 ++++++++++++++++++++
 2 files changed, 127 insertions(+)
 create mode 100644 src/utility/ota/OTAStorage_MKRGSM.cpp
 create mode 100644 src/utility/ota/OTAStorage_MKRGSM.h

diff --git a/src/utility/ota/OTAStorage_MKRGSM.cpp b/src/utility/ota/OTAStorage_MKRGSM.cpp
new file mode 100644
index 000000000..6987bf53a
--- /dev/null
+++ b/src/utility/ota/OTAStorage_MKRGSM.cpp
@@ -0,0 +1,73 @@
+/*
+   This file is part of ArduinoIoTCloud.
+
+   Copyright 2020 ARDUINO SA (http://www.arduino.cc/)
+
+   This software is released under the GNU General Public License version 3,
+   which covers the main part of arduino-cli.
+   The terms of this license can be found at:
+   https://www.gnu.org/licenses/gpl-3.0.en.html
+
+   You can be released from the requirements of the above licenses by purchasing
+   a commercial license. Buying such a license is mandatory if you want to modify or
+   otherwise use the software for commercial activities involving the Arduino
+   software without disclosing the source code of your own applications. To purchase
+   a commercial license, send an email to license@arduino.cc.
+*/
+
+/******************************************************************************
+   INCLUDE
+ ******************************************************************************/
+
+#include "OTAStorage_MKRGSM.h"
+
+#include <Arduino_DebugUtils.h>
+
+/******************************************************************************
+   CTOR/DTOR
+ ******************************************************************************/
+
+OTAStorage_MKRGSM::OTAStorage_MKRGSM()
+{
+}
+
+// GSMFileUtils _fileUtils;
+// String filename = "UPDATE.BIN";
+constexpr char * filename { "UPDATE.BIN" };
+/******************************************************************************
+   PUBLIC MEMBER FUNCTIONS
+ ******************************************************************************/
+
+bool OTAStorage_MKRGSM::init()
+{
+    return _fileUtils.begin();
+}
+
+bool OTAStorage_MKRGSM::open()
+{
+    auto size = _fileUtils.listFile(filename);
+    _fileUtils.deleteFile(filename);
+    return true;
+}
+
+size_t OTAStorage_MKRGSM::write(uint8_t const* const buf, size_t const num_bytes)
+{
+    // Serial.print("size: ");
+    // Serial.println(num_bytes);
+    _fileUtils.appendFile(filename, (const char*)buf, num_bytes);
+
+    return num_bytes;
+}
+
+void OTAStorage_MKRGSM::close()
+{
+}
+
+void OTAStorage_MKRGSM::remove()
+{
+    _fileUtils.deleteFile(filename);
+}
+
+void OTAStorage_MKRGSM::deinit()
+{
+}
diff --git a/src/utility/ota/OTAStorage_MKRGSM.h b/src/utility/ota/OTAStorage_MKRGSM.h
new file mode 100644
index 000000000..6719e806e
--- /dev/null
+++ b/src/utility/ota/OTAStorage_MKRGSM.h
@@ -0,0 +1,54 @@
+/*
+   This file is part of ArduinoIoTCloud.
+
+   Copyright 2020 ARDUINO SA (http://www.arduino.cc/)
+
+   This software is released under the GNU General Public License version 3,
+   which covers the main part of arduino-cli.
+   The terms of this license can be found at:
+   https://www.gnu.org/licenses/gpl-3.0.en.html
+
+   You can be released from the requirements of the above licenses by purchasing
+   a commercial license. Buying such a license is mandatory if you want to modify or
+   otherwise use the software for commercial activities involving the Arduino
+   software without disclosing the source code of your own applications. To purchase
+   a commercial license, send an email to license@arduino.cc.
+*/
+
+#ifndef ARDUINO_OTA_STORAGE_MKRGSM_H_
+#define ARDUINO_OTA_STORAGE_MKRGSM_H_
+
+/******************************************************************************
+ * INCLUDE
+ ******************************************************************************/
+
+#include "OTAStorage.h"
+
+#include <GSMFileUtils.h>
+
+/******************************************************************************
+ * CLASS DECLARATION
+ ******************************************************************************/
+
+class OTAStorage_MKRGSM : public OTAStorage
+{
+public:
+
+           OTAStorage_MKRGSM();
+  virtual ~OTAStorage_MKRGSM() { }
+
+
+  virtual Type   type  () override { return Type::MKRGSMFile; }
+  virtual bool   init  () override;
+  virtual bool   open  () override;
+  virtual size_t write (uint8_t const * const buf, size_t const num_bytes) override;
+  virtual void   close () override;
+  virtual void   remove() override;
+  virtual void   deinit() override;
+
+private:
+   GSMFileUtils _fileUtils;
+
+};
+
+#endif /* ARDUINO_OTA_STORAGE_MKRGSM_H_ */