Create a dummy FM Control class.

FMControl.cpp

@@ -0,0 +1,113 @@
+/*
+ *   Copyright (C) 2020 by Jonathan Naylor G4KLX
+ *
+ *   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 of the License, 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; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "FMControl.h"
+
+#include <string>
+#include <ctime>
+
+CFMControl::CFMControl(CFMNetwork* network) :
+m_network(network),
+m_queue(3000U, "FM Control"),
+m_enabled(false),
+m_fp(NULL)
+{
+    assert(network != NULL);
+}
+
+CFMControl::~CFMControl()
+{
+}
+
+bool CFMControl::writeModem(unsigned char* data, unsigned int len)
+{
+    assert(data != NULL);
+    assert(len > 0U);
+
+    // Unpack serial data (12-bit unsigned values)
+
+    // De-emphasise the data
+
+    // Repack the data (16-bit unsigned values)
+
+    return true;
+}
+
+unsigned int CFMControl::readModem(unsigned char* data, unsigned int space)
+{
+    assert(data != NULL);
+    assert(space > 0U);
+
+    // Unpack serial data (16-bit unsigned values)
+
+    // Pre-emphasise the data
+
+    // Repack the data (12-bit unsigned values)
+
+    return 0U;
+}
+
+void CFMControl::clock(unsigned int ms)
+{
+    // May not be needed
+}
+
+void CFMControl::enable(bool enabled)
+{
+    // May not be needed
+}
+
+bool CFMControl::openFile()
+{
+    if (m_fp != NULL)
+        return true;
+
+    time_t t;
+    ::time(&t);
+
+    struct tm* tm = ::localtime(&t);
+
+    char name[100U];
+    ::sprintf(name, "FM_%04d%02d%02d_%02d%02d%02d.ambe", tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+    m_fp = ::fopen(name, "wb");
+    if (m_fp == NULL)
+        return false;
+
+    ::fwrite("FM", 1U, 2U, m_fp);
+
+    return true;
+}
+
+bool CFMControl::writeFile(const unsigned char* data, unsigned int length)
+{
+    if (m_fp == NULL)
+        return false;
+
+    ::fwrite(data, 1U, length, m_fp);
+
+    return true;
+}
+
+void CFMControl::closeFile()
+{
+    if (m_fp != NULL) {
+        ::fclose(m_fp);
+        m_fp = NULL;
+    }
+}