--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OSTC4Operations.h	Thu Nov 27 18:40:28 2025 +0100
@@ -0,0 +1,107 @@
+//////////////////////////////////////////////////////////////////////////////
+/// \file   OSTC4Operations.h
+/// \brief  Implementing various operations for H&W OSTC4 dive computer
+/// \author JD Gascuel.
+/// \sa     OSTC3Operations, HardwareOperations.h
+///
+/// \copyright (c) 2016 JD Gascuel. All rights reserved.
+/// $Id$
+//////////////////////////////////////////////////////////////////////////////
+//
+// BSD 2-Clause License:
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+//    this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+// THE POSSIBILITY OF SUCH DAMAGE.
+//
+//////////////////////////////////////////////////////////////////////////////
+// HISTORY
+//  2015-09-28  jDG: Creation initial (RadioComm) version.
+//  2016-04-25  jDG: Final H&W version.
+
+#ifndef OSTC4_OPERATIONS_H
+#define OSTC4_OPERATIONS_H
+
+#include "OSTC3Operations.h"
+#include <QRegularExpression>
+
+#include "AES/Adler16.h"
+#include "Export.h"
+#include <QFile>
+
+//////////////////////////////////////////////////////////////////////////////
+/// \brief  Implementing various operations for H&W OSTC4 dive computer
+class OSTC4Operations
+  : public OSTC3Operations
+{
+    //------------------------------------------------------------------------
+    /// \brief Custom text size (lines and columns).
+    EXPORT QSize nameSize() const override;
+
+    //------------------------------------------------------------------------
+    /// \brief Read OSTC4 computer firmware, serial and custom text.
+    /// Everything is formated for the description() string.
+    /// \throws if something goes wrong.
+    EXPORT void getIdentity() override;
+
+    EXPORT QString model() const override;
+
+    /// \brief Tells what is supported for a given computer.
+    EXPORT CompanionFeatures supported() const override;
+
+    struct FirmwareOSTC4 {
+        uint    length;
+        uchar   type, dummy5, dummy6, dummy7;
+        uint    checksum;
+        struct {
+            unsigned char x, y, z, beta;
+        }       version;
+    };
+
+    QFile   _file;
+
+    /// \param[in] dryRun: If TRUE, do not upload FW, just check file structure.
+    void openFirmware(const QString& fileName, bool dryRun);
+
+    void loadFirmwarePart(FirmwareOSTC4& header,
+                          QByteArray& bin, int part,
+                          bool dryRun);
+
+    void getSignal() override;
+    void getAllHeader(unsigned char* pBuffer) override;
+    void writeAllHeader(unsigned char* pBuffer) override;
+    void getAllSamples(unsigned char* pBuffer) override;
+    void writeAllSamples(unsigned char* pBuffer) override;
+
+    EXPORT QString firmwareTemplate() const override;
+   // EXPORT QRegExp portTemplate() const override;
+    EXPORT QRegularExpression portTemplate() const override;
+    EXPORT QStringList listPorts() const override;
+    EXPORT void upgradeFW(const QString &fileName) override;
+
+    Adler32 fileChecksum;
+
+public:
+    EXPORT OSTC4Operations();
+};
+
+#endif // OSTC4_OPERATIONS_H