Bryan Biedenkapp
5 years ago
parent
a0ef0aaf63
commit
63713f0f8e
@ -0,0 +1,43 @@
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/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2016,2021 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
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||||
*
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* This program is distributed in the hope that it will be useful,
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||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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||||
* 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.
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*/
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#include "modem/port/IModemPort.h"
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using namespace modem::port;
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Finalizes a instance of the IModemPort class.
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/// </summary>
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IModemPort::~IModemPort()
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{
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/* stub */
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}
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@ -0,0 +1,63 @@
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/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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||||
*
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||||
* @package DVM / Host Software
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||||
*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2016,2021 by Jonathan Naylor G4KLX
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*
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* 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.
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||||
*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
|
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* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(__I_MODEM_PORT_H__)
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#define __I_MODEM_PORT_H__
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#include "Defines.h"
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namespace modem
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{
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namespace port
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{
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// ---------------------------------------------------------------------------
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// Class Declaration
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// Defines a "port" the modem is connected to.
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// ---------------------------------------------------------------------------
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class HOST_SW_API IModemPort {
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public:
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/// <summary>Finalizes a instance of the IModemPort class.</summary>
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virtual ~IModemPort() = 0;
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/// <summary>Opens a connection to the port.</summary>
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virtual bool open() = 0;
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/// <summary>Reads data from the port.</summary>
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virtual int read(uint8_t* buffer, uint32_t length) = 0;
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/// <summary>Writes data to the port.</summary>
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virtual int write(const uint8_t* buffer, uint32_t length) = 0;
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/// <summary>Closes the connection to the port.</summary>
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virtual void close() = 0;
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};
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} // namespace port
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} // namespace modem
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#endif // __I_MODEM_PORT_H__
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@ -0,0 +1,43 @@
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/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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||||
*
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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2016 by Jonathan Naylor G4KLX
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*
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* 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.
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*
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* This program is distributed in the hope that it will be useful,
|
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* 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.
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*/
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#include "modem/port/ISerialPort.h"
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using namespace modem::port;
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Finalizes a instance of the ISerialPort class.
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/// </summary>
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ISerialPort::~ISerialPort()
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{
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/* stub */
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}
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@ -0,0 +1,63 @@
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/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2016,2021 by Jonathan Naylor G4KLX
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*
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* 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.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
|
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*
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* 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.
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*/
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#if !defined(__I_SERIAL_PORT_H__)
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#define __I_SERIAL_PORT_H__
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#include "Defines.h"
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namespace modem
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{
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namespace port
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{
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// ---------------------------------------------------------------------------
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// Class Declaration
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// Defines a serial port.
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// ---------------------------------------------------------------------------
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class HOST_SW_API ISerialPort {
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public:
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/// <summary>Finalizes a instance of the ISerialPort class.</summary>
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virtual ~ISerialPort() = 0;
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/// <summary>Opens a connection to the port.</summary>
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virtual bool open() = 0;
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/// <summary>Reads data from the port.</summary>
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virtual int read(uint8_t* buffer, uint32_t length) = 0;
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/// <summary>Writes data to the port.</summary>
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virtual int write(const uint8_t* buffer, uint32_t length) = 0;
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/// <summary>Closes the connection to the port.</summary>
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virtual void close() = 0;
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};
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} // namespace port
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} // namespace modem
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#endif // __I_SERIAL_PORT_H__
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@ -0,0 +1,197 @@
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/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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||||
*
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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2021 by Jonathan Naylor G4KLX
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* Copyright (C) 2021 by Bryan Biedenkapp N2PLL
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*
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* 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.
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||||
*
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* 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
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||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "modem/port/ModemNullPort.h"
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#include "modem/Modem.h"
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using namespace modem::port;
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using namespace modem;
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#include <cstdio>
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#include <cassert>
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const char* HARDWARE = "Null Modem Controller";
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Initializes a new instance of the ModemNullPort class.
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/// </summary>
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ModemNullPort::ModemNullPort() :
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m_buffer(200U, "Null Controller Buffer")
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{
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/* stub */
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}
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/// <summary>
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/// Finalizes a instance of the ModemNullPort class.
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/// </summary>
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ModemNullPort::~ModemNullPort()
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{
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}
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/// <summary>
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/// Opens a connection to the port.
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/// </summary>
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/// <returns>True, if connection is opened, otherwise false.</returns>
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bool ModemNullPort::open()
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{
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return true;
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}
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/// <summary>
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/// Reads data from the port.
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/// </summary>
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/// <param name="buffer">Buffer to read data from the serial port to.</param>
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/// <param name="length">Length of data to read from the serial port.</param>
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/// <returns>Actual length of data read from serial port.</returns>
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int ModemNullPort::read(uint8_t* buffer, uint32_t length)
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{
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uint32_t dataSize = m_buffer.dataSize();
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if (dataSize == 0U)
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return 0;
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if (length > dataSize)
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length = dataSize;
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m_buffer.getData(buffer, length);
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return int(length);
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}
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/// <summary>
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/// Writes data to the serial port.
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/// </summary>
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/// <param name="buffer">Buffer containing data to write to serial port.</param>
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/// <param name="length">Length of data to write to serial port.</param>
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/// <returns>Actual length of data written to the serial port.</returns>
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int ModemNullPort::write(const uint8_t* buffer, uint32_t length)
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{
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switch (buffer[2U]) {
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case CMD_GET_VERSION:
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getVersion();
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break;
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case CMD_GET_STATUS:
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getStatus();
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break;
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case CMD_SET_CONFIG:
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case CMD_SET_MODE:
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writeAck(buffer[2U]);
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break;
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default:
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break;
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}
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return int(length);
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}
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/// <summary>
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/// Closes the connection to the port.
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/// </summary>
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void ModemNullPort::close()
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{
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/* stub */
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}
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// ---------------------------------------------------------------------------
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// Private Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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///
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/// </summary>
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void ModemNullPort::getVersion()
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{
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unsigned char reply[200U];
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reply[0U] = DVM_FRAME_START;
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reply[1U] = 0U;
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reply[2U] = CMD_GET_VERSION;
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reply[3U] = PROTOCOL_VERSION;
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reply[4U] = 15U;
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// Reserve 16 bytes for the UDID
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::memset(reply + 5U, 0x00U, 16U);
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uint8_t count = 21U;
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for (uint8_t i = 0U; HARDWARE[i] != 0x00U; i++, count++)
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reply[count] = HARDWARE[i];
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reply[1U] = count;
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m_buffer.addData(reply, count);
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}
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/// <summary>
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///
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/// </summary>
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void ModemNullPort::getStatus()
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{
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unsigned char reply[15U];
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// Send all sorts of interesting internal values
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reply[0U] = DVM_FRAME_START;
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reply[1U] = 11U;
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reply[2U] = CMD_GET_STATUS;
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reply[3U] = 0U;
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reply[4U] = 0x00U;
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reply[5U] = 0x00U;
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reply[6U] = 20U;
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reply[7U] = 20U;
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reply[8U] = 20U;
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reply[9U] = 0U;
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reply[10U] = 20U;
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m_buffer.addData(reply, 11U);
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}
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/// <summary>
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///
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/// </summary>
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void ModemNullPort::writeAck(uint8_t type)
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{
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unsigned char reply[4U];
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reply[0U] = DVM_FRAME_START;
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reply[1U] = 4U;
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reply[2U] = CMD_ACK;
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reply[3U] = type;
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m_buffer.addData(reply, 4U);
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}
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@ -0,0 +1,79 @@
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/**
|
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* Digital Voice Modem - Host Software
|
||||
* GPLv2 Open Source. Use is subject to license terms.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
* @package DVM / Host Software
|
||||
*
|
||||
*/
|
||||
//
|
||||
// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
|
||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
|
||||
//
|
||||
/*
|
||||
* Copyright (C) 2021 by Jonathan Naylor G4KLX
|
||||
* Copyright (C) 2021 by Bryan Biedenkapp N2PLL
|
||||
*
|
||||
* 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.
|
||||
*/
|
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#if !defined(__MODEM_NULL_PORT_H__)
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#define __MODEM_NULL_PORT_H__
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#include "Defines.h"
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#include "modem/port/IModemPort.h"
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#include "RingBuffer.h"
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namespace modem
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{
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namespace port
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{
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// ---------------------------------------------------------------------------
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// Class Declaration
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// This class implements low-level routines that represent a "null"
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// modem port.
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// ---------------------------------------------------------------------------
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class HOST_SW_API ModemNullPort : public IModemPort {
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public:
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/// <summary>Initializes a new instance of the ModemNullPort class.</summary>
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ModemNullPort();
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/// <summary>Finalizes a instance of the ModemNullPort class.</summary>
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virtual ~ModemNullPort();
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/// <summary>Opens a connection to the port.</summary>
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virtual bool open();
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/// <summary>Reads data from the port.</summary>
|
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virtual int read(uint8_t* buffer, uint32_t length);
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/// <summary>Writes data to the port.</summary>
|
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virtual int write(const uint8_t* buffer, uint32_t length);
|
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|
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/// <summary>Closes the connection to the port.</summary>
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virtual void close();
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private:
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RingBuffer<unsigned char> m_buffer;
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/// <summary></summary>
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void getVersion();
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/// <summary></summary>
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void getStatus();
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/// <summary></summary>
|
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void writeAck(uint8_t type);
|
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};
|
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} // namespace port
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} // namespace modem
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|
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#endif // __MODEM_NULL_PORT_H__
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@ -0,0 +1,605 @@
|
||||
/**
|
||||
* Digital Voice Modem - Host Software
|
||||
* GPLv2 Open Source. Use is subject to license terms.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
* @package DVM / Host Software
|
||||
*
|
||||
*/
|
||||
//
|
||||
// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
|
||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
|
||||
//
|
||||
/*
|
||||
* Copyright (C) 2002-2004,2007-2011,2013,2014-2017,2019,2020,2021 by Jonathan Naylor G4KLX
|
||||
* Copyright (C) 1999-2001 by Thomas Sailor HB9JNX
|
||||
* Copyright (C) 2020-2021 by Bryan Biedenkapp N2PLL
|
||||
*
|
||||
* 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 "Defines.h"
|
||||
#include "modem/port/UARTPort.h"
|
||||
#include "Log.h"
|
||||
|
||||
using namespace modem::port;
|
||||
|
||||
#include <cstring>
|
||||
#include <cassert>
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#if defined(_WIN32) || defined(_WIN64)
|
||||
#include <setupapi.h>
|
||||
#include <winioctl.h>
|
||||
#else
|
||||
#include <sys/types.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/stat.h>
|
||||
#include <cerrno>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <termios.h>
|
||||
#endif
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Public Class Members
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
#if defined(_WIN32) || defined(_WIN64)
|
||||
/// <summary>
|
||||
/// Initializes a new instance of the UARTPort class.
|
||||
/// </summary>
|
||||
/// <param name="device">Serial port device.</param>
|
||||
/// <param name="speed">Serial port speed.</param>
|
||||
/// <param name="assertRTS"></param>
|
||||
UARTPort::UARTPort(const std::string& device, SERIAL_SPEED speed, bool assertRTS) :
|
||||
m_device(device),
|
||||
m_speed(speed),
|
||||
m_assertRTS(assertRTS),
|
||||
m_handle(INVALID_HANDLE_VALUE)
|
||||
{
|
||||
assert(!device.empty());
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Finalizes a instance of the UARTPort class.
|
||||
/// </summary>
|
||||
UARTPort::~UARTPort()
|
||||
{
|
||||
/* stub */
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Opens a connection to the serial port.
|
||||
/// </summary>
|
||||
/// <returns>True, if connection is opened, otherwise false.</returns>
|
||||
bool UARTPort::open()
|
||||
{
|
||||
assert(m_handle == INVALID_HANDLE_VALUE);
|
||||
|
||||
DWORD errCode;
|
||||
|
||||
// Convert "\\.\COM10" to "COM10"
|
||||
std::string baseName = m_device.substr(4U);
|
||||
|
||||
m_handle = ::CreateFileA(m_device.c_str(), GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
||||
if (m_handle == INVALID_HANDLE_VALUE) {
|
||||
::LogError(LOG_HOST, "Cannot open device - %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
return false;
|
||||
}
|
||||
|
||||
DCB dcb;
|
||||
if (::GetCommState(m_handle, &dcb) == 0) {
|
||||
::LogError(LOG_HOST, "Cannot get the attributes for %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
::ClearCommError(m_handle, &errCode, NULL);
|
||||
::CloseHandle(m_handle);
|
||||
return false;
|
||||
}
|
||||
|
||||
dcb.BaudRate = DWORD(m_speed);
|
||||
dcb.ByteSize = 8;
|
||||
dcb.Parity = NOPARITY;
|
||||
dcb.fParity = FALSE;
|
||||
dcb.StopBits = ONESTOPBIT;
|
||||
dcb.fInX = FALSE;
|
||||
dcb.fOutX = FALSE;
|
||||
dcb.fOutxCtsFlow = FALSE;
|
||||
dcb.fOutxDsrFlow = FALSE;
|
||||
dcb.fDsrSensitivity = FALSE;
|
||||
dcb.fDtrControl = DTR_CONTROL_DISABLE;
|
||||
dcb.fRtsControl = RTS_CONTROL_DISABLE;
|
||||
|
||||
if (::SetCommState(m_handle, &dcb) == 0) {
|
||||
::LogError(LOG_HOST, "Cannot set the attributes for %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
::ClearCommError(m_handle, &errCode, NULL);
|
||||
::CloseHandle(m_handle);
|
||||
return false;
|
||||
}
|
||||
|
||||
COMMTIMEOUTS timeouts;
|
||||
if (!::GetCommTimeouts(m_handle, &timeouts)) {
|
||||
::LogError(LOG_HOST, "Cannot get the timeouts for %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
::ClearCommError(m_handle, &errCode, NULL);
|
||||
::CloseHandle(m_handle);
|
||||
return false;
|
||||
}
|
||||
|
||||
timeouts.ReadIntervalTimeout = MAXDWORD;
|
||||
timeouts.ReadTotalTimeoutMultiplier = 0UL;
|
||||
timeouts.ReadTotalTimeoutConstant = 0UL;
|
||||
|
||||
if (!::SetCommTimeouts(m_handle, &timeouts)) {
|
||||
::LogError(LOG_HOST, "Cannot set the timeouts for %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
::ClearCommError(m_handle, &errCode, NULL);
|
||||
::CloseHandle(m_handle);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (::EscapeCommFunction(m_handle, CLRDTR) == 0) {
|
||||
::LogError(LOG_HOST, "Cannot clear DTR for %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
::ClearCommError(m_handle, &errCode, NULL);
|
||||
::CloseHandle(m_handle);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (::EscapeCommFunction(m_handle, m_assertRTS ? SETRTS : CLRRTS) == 0) {
|
||||
::LogError(LOG_HOST, "Cannot set/clear RTS for %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
::ClearCommError(m_handle, &errCode, NULL);
|
||||
::CloseHandle(m_handle);
|
||||
return false;
|
||||
}
|
||||
|
||||
::ClearCommError(m_handle, &errCode, NULL);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Reads data from the serial port.
|
||||
/// </summary>
|
||||
/// <param name="buffer">Buffer to read data from the serial port to.</param>
|
||||
/// <param name="length">Length of data to read from the serial port.</param>
|
||||
/// <returns>Actual length of data read from serial port.</returns>
|
||||
int UARTPort::read(uint8_t* buffer, uint32_t length)
|
||||
{
|
||||
assert(m_handle != INVALID_HANDLE_VALUE);
|
||||
assert(buffer != NULL);
|
||||
|
||||
uint32_t ptr = 0U;
|
||||
|
||||
while (ptr < length) {
|
||||
int ret = readNonblock(buffer + ptr, length - ptr);
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
else if (ret == 0) {
|
||||
if (ptr == 0U)
|
||||
return 0;
|
||||
}
|
||||
else {
|
||||
ptr += ret;
|
||||
}
|
||||
}
|
||||
|
||||
return int(length);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Writes data to the serial port.
|
||||
/// </summary>
|
||||
/// <param name="buffer">Buffer containing data to write to serial port.</param>
|
||||
/// <param name="length">Length of data to write to serial port.</param>
|
||||
/// <returns>Actual length of data written to the serial port.</returns>
|
||||
int UARTPort::write(const uint8_t* buffer, uint32_t length)
|
||||
{
|
||||
assert(m_handle != INVALID_HANDLE_VALUE);
|
||||
assert(buffer != NULL);
|
||||
|
||||
if (length == 0U)
|
||||
return 0;
|
||||
|
||||
uint32_t ptr = 0U;
|
||||
|
||||
while (ptr < length) {
|
||||
DWORD bytes = 0UL;
|
||||
BOOL ret = ::WriteFile(m_handle, buffer + ptr, length - ptr, &bytes, NULL);
|
||||
if (!ret) {
|
||||
::LogError(LOG_HOST, "Error from WriteFile for %s: %04lx", m_device.c_str(), ::GetLastError());
|
||||
return -1;
|
||||
}
|
||||
|
||||
ptr += bytes;
|
||||
}
|
||||
|
||||
return int(length);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Closes the connection to the serial port.
|
||||
/// </summary>
|
||||
void UARTPort::close()
|
||||
{
|
||||
assert(m_handle != INVALID_HANDLE_VALUE);
|
||||
|
||||
::CloseHandle(m_handle);
|
||||
m_handle = INVALID_HANDLE_VALUE;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
/// <summary>
|
||||
/// Initializes a new instance of the UARTPort class.
|
||||
/// </summary>
|
||||
/// <param name="device">Serial port device.</param>
|
||||
/// <param name="speed">Serial port speed.</param>
|
||||
/// <param name="assertRTS"></param>
|
||||
UARTPort::UARTPort(const std::string& device, SERIAL_SPEED speed, bool assertRTS) :
|
||||
m_device(device),
|
||||
m_speed(speed),
|
||||
m_assertRTS(assertRTS),
|
||||
m_fd(-1)
|
||||
{
|
||||
assert(!device.empty());
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Finalizes a instance of the UARTPort class.
|
||||
/// </summary>
|
||||
UARTPort::~UARTPort()
|
||||
{
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Opens a connection to the serial port.
|
||||
/// </summary>
|
||||
/// <returns>True, if connection is opened, otherwise false.</returns>
|
||||
bool UARTPort::open()
|
||||
{
|
||||
assert(m_fd == -1);
|
||||
|
||||
#if defined(__APPLE__)
|
||||
m_fd = ::open(m_device.c_str(), O_RDWR | O_NOCTTY | O_NONBLOCK); /*open in block mode under OSX*/
|
||||
#else
|
||||
m_fd = ::open(m_device.c_str(), O_RDWR | O_NOCTTY | O_NDELAY, 0);
|
||||
#endif
|
||||
if (m_fd < 0) {
|
||||
::LogError(LOG_HOST, "Cannot open device - %s", m_device.c_str());
|
||||
return false;
|
||||
}
|
||||
|
||||
if (::isatty(m_fd))
|
||||
return setRaw();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Reads data from the serial port.
|
||||
/// </summary>
|
||||
/// <param name="buffer">Buffer to read data from the serial port to.</param>
|
||||
/// <param name="length">Length of data to read from the serial port.</param>
|
||||
/// <returns>Actual length of data read from serial port.</returns>
|
||||
int UARTPort::read(uint8_t* buffer, uint32_t length)
|
||||
{
|
||||
assert(buffer != NULL);
|
||||
assert(m_fd != -1);
|
||||
|
||||
if (length == 0U)
|
||||
return 0;
|
||||
|
||||
uint32_t offset = 0U;
|
||||
|
||||
while (offset < length) {
|
||||
fd_set fds;
|
||||
FD_ZERO(&fds);
|
||||
FD_SET(m_fd, &fds);
|
||||
int n;
|
||||
if (offset == 0U) {
|
||||
struct timeval tv;
|
||||
tv.tv_sec = 0;
|
||||
tv.tv_usec = 0;
|
||||
n = ::select(m_fd + 1, &fds, NULL, NULL, &tv);
|
||||
if (n == 0)
|
||||
return 0;
|
||||
}
|
||||
else {
|
||||
n = ::select(m_fd + 1, &fds, NULL, NULL, NULL);
|
||||
}
|
||||
|
||||
if (n < 0) {
|
||||
::LogError(LOG_HOST, "Error from select(), errno=%d", errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (n > 0) {
|
||||
ssize_t len = ::read(m_fd, buffer + offset, length - offset);
|
||||
if (len < 0) {
|
||||
if (errno != EAGAIN) {
|
||||
::LogError(LOG_HOST, "Error from read(), errno=%d", errno);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
if (len > 0)
|
||||
offset += len;
|
||||
}
|
||||
}
|
||||
|
||||
return length;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Writes data to the serial port.
|
||||
/// </summary>
|
||||
/// <param name="buffer">Buffer containing data to write to serial port.</param>
|
||||
/// <param name="length">Length of data to write to serial port.</param>
|
||||
/// <returns>Actual length of data written to the serial port.</returns>
|
||||
int UARTPort::write(const uint8_t* buffer, uint32_t length)
|
||||
{
|
||||
assert(buffer != NULL);
|
||||
assert(m_fd != -1);
|
||||
|
||||
if (length == 0U)
|
||||
return 0;
|
||||
|
||||
uint32_t ptr = 0U;
|
||||
while (ptr < length) {
|
||||
ssize_t n = 0U;
|
||||
if (canWrite())
|
||||
n = ::write(m_fd, buffer + ptr, length - ptr);
|
||||
if (n < 0) {
|
||||
if (errno != EAGAIN) {
|
||||
::LogError(LOG_HOST, "Error returned from write(), errno=%d", errno);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
if (n > 0)
|
||||
ptr += n;
|
||||
}
|
||||
|
||||
return length;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Closes the connection to the serial port.
|
||||
/// </summary>
|
||||
void UARTPort::close()
|
||||
{
|
||||
assert(m_fd != -1);
|
||||
|
||||
::close(m_fd);
|
||||
m_fd = -1;
|
||||
}
|
||||
|
||||
#if defined(__APPLE__)
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
int UARTPort::setNonblock(bool nonblock)
|
||||
{
|
||||
int flag = ::fcntl(m_fd, F_GETFD, 0);
|
||||
|
||||
if (nonblock)
|
||||
flag |= O_NONBLOCK;
|
||||
else
|
||||
flag &= ~O_NONBLOCK;
|
||||
|
||||
return ::fcntl(m_fd, F_SETFL, flag);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Private Class Members
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
#if defined(_WIN32) || defined(_WIN64)
|
||||
/// <summary>
|
||||
/// Initializes a new instance of the UARTPort class.
|
||||
/// </summary>
|
||||
/// <param name="speed">Serial port speed.</param>
|
||||
/// <param name="assertRTS"></param>
|
||||
UARTPort::UARTPort(SERIAL_SPEED speed, bool assertRTS) :
|
||||
m_device(),
|
||||
m_speed(speed),
|
||||
m_assertRTS(assertRTS),
|
||||
m_handle(INVALID_HANDLE_VALUE)
|
||||
{
|
||||
/* stub */
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="buffer"></param>
|
||||
/// <param name="length"></param>
|
||||
/// <returns></returns>
|
||||
int UARTPort::readNonblock(uint8_t* buffer, uint32_t length)
|
||||
{
|
||||
assert(m_handle != INVALID_HANDLE_VALUE);
|
||||
assert(buffer != NULL);
|
||||
|
||||
if (length == 0U)
|
||||
return 0;
|
||||
|
||||
DWORD errors;
|
||||
COMSTAT status;
|
||||
if (::ClearCommError(m_handle, &errors, &status) == 0) {
|
||||
::LogError(LOG_HOST, "Error from ClearCommError for %s, err=%04lx", m_device.c_str(), ::GetLastError());
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (status.cbInQue == 0UL)
|
||||
return 0;
|
||||
|
||||
DWORD readLength = status.cbInQue;
|
||||
if (length < readLength)
|
||||
readLength = length;
|
||||
|
||||
DWORD bytes = 0UL;
|
||||
BOOL ret = ::ReadFile(m_handle, buffer, readLength, &bytes, NULL);
|
||||
if (!ret) {
|
||||
::LogError(LOG_HOST, "Error from ReadFile for %s: %04lx", m_device.c_str(), ::GetLastError());
|
||||
return -1;
|
||||
}
|
||||
|
||||
return int(bytes);
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
/// <summary>
|
||||
/// Initializes a new instance of the UARTPort class.
|
||||
/// </summary>
|
||||
/// <param name="speed">Serial port speed.</param>
|
||||
/// <param name="assertRTS"></param>
|
||||
UARTPort::UARTPort(SERIAL_SPEED speed, bool assertRTS) :
|
||||
m_device(),
|
||||
m_speed(speed),
|
||||
m_assertRTS(assertRTS),
|
||||
m_fd(-1)
|
||||
{
|
||||
/* stub */
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
bool UARTPort::canWrite()
|
||||
{
|
||||
#if defined(__APPLE__)
|
||||
fd_set wset;
|
||||
FD_ZERO(&wset);
|
||||
FD_SET(m_fd, &wset);
|
||||
|
||||
struct timeval timeo;
|
||||
timeo.tv_sec = 0;
|
||||
timeo.tv_usec = 0;
|
||||
|
||||
int rc = ::select(m_fd + 1, NULL, &wset, NULL, &timeo);
|
||||
if (rc > 0 && FD_ISSET(m_fd, &wset))
|
||||
return true;
|
||||
|
||||
return false;
|
||||
#else
|
||||
return true;
|
||||
#endif
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
bool UARTPort::setRaw()
|
||||
{
|
||||
termios termios;
|
||||
if (::tcgetattr(m_fd, &termios) < 0) {
|
||||
::LogError(LOG_HOST, "Cannot get the attributes for %s", m_device.c_str());
|
||||
::close(m_fd);
|
||||
return false;
|
||||
}
|
||||
|
||||
termios.c_iflag &= ~(IGNBRK | BRKINT | IGNPAR | PARMRK | INPCK);
|
||||
termios.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL);
|
||||
termios.c_iflag &= ~(IXON | IXOFF | IXANY);
|
||||
termios.c_oflag &= ~(OPOST);
|
||||
termios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CRTSCTS);
|
||||
termios.c_cflag |= (CS8 | CLOCAL | CREAD);
|
||||
termios.c_lflag &= ~(ISIG | ICANON | IEXTEN);
|
||||
termios.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
|
||||
#if defined(__APPLE__)
|
||||
termios.c_cc[VMIN] = 1;
|
||||
termios.c_cc[VTIME] = 1;
|
||||
#else
|
||||
termios.c_cc[VMIN] = 0;
|
||||
termios.c_cc[VTIME] = 10;
|
||||
#endif
|
||||
|
||||
switch (m_speed) {
|
||||
case SERIAL_1200:
|
||||
::cfsetospeed(&termios, B1200);
|
||||
::cfsetispeed(&termios, B1200);
|
||||
break;
|
||||
case SERIAL_2400:
|
||||
::cfsetospeed(&termios, B2400);
|
||||
::cfsetispeed(&termios, B2400);
|
||||
break;
|
||||
case SERIAL_4800:
|
||||
::cfsetospeed(&termios, B4800);
|
||||
::cfsetispeed(&termios, B4800);
|
||||
break;
|
||||
case SERIAL_9600:
|
||||
::cfsetospeed(&termios, B9600);
|
||||
::cfsetispeed(&termios, B9600);
|
||||
break;
|
||||
case SERIAL_19200:
|
||||
::cfsetospeed(&termios, B19200);
|
||||
::cfsetispeed(&termios, B19200);
|
||||
break;
|
||||
case SERIAL_38400:
|
||||
::cfsetospeed(&termios, B38400);
|
||||
::cfsetispeed(&termios, B38400);
|
||||
break;
|
||||
case SERIAL_115200:
|
||||
::cfsetospeed(&termios, B115200);
|
||||
::cfsetispeed(&termios, B115200);
|
||||
break;
|
||||
case SERIAL_230400:
|
||||
::cfsetospeed(&termios, B230400);
|
||||
::cfsetispeed(&termios, B230400);
|
||||
break;
|
||||
case SERIAL_460800:
|
||||
::cfsetospeed(&termios, B460800);
|
||||
::cfsetispeed(&termios, B460800);
|
||||
break;
|
||||
default:
|
||||
::LogError(LOG_HOST, "Unsupported serial port speed - %u", m_speed);
|
||||
::close(m_fd);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (::tcsetattr(m_fd, TCSANOW, &termios) < 0) {
|
||||
::LogError(LOG_HOST, "Cannot set the attributes for %s", m_device.c_str());
|
||||
::close(m_fd);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (m_assertRTS) {
|
||||
uint32_t y;
|
||||
if (::ioctl(m_fd, TIOCMGET, &y) < 0) {
|
||||
::LogError(LOG_HOST, "Cannot get the control attributes for %s", m_device.c_str());
|
||||
::close(m_fd);
|
||||
return false;
|
||||
}
|
||||
|
||||
y |= TIOCM_RTS;
|
||||
|
||||
if (::ioctl(m_fd, TIOCMSET, &y) < 0) {
|
||||
::LogError(LOG_HOST, "Cannot set the control attributes for %s", m_device.c_str());
|
||||
::close(m_fd);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined(__APPLE__)
|
||||
setNonblock(false);
|
||||
#endif
|
||||
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
@ -0,0 +1,122 @@
|
||||
/**
|
||||
* Digital Voice Modem - Host Software
|
||||
* GPLv2 Open Source. Use is subject to license terms.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
* @package DVM / Host Software
|
||||
*
|
||||
*/
|
||||
//
|
||||
// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
|
||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
|
||||
//
|
||||
/*
|
||||
* Copyright (C) 2002-2004,2007-2009,2011-2013,2015-2017,2020,2021 by Jonathan Naylor G4KLX
|
||||
* Copyright (C) 1999-2001 by Thomas Sailor HB9JNX
|
||||
* Copyright (C) 2020-2021 by Bryan Biedenkapp N2PLL
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
#if !defined(__UART_PORT_H__)
|
||||
#define __UART_PORT_H__
|
||||
|
||||
#include "Defines.h"
|
||||
#include "modem/port/IModemPort.h"
|
||||
#include "modem/port/ISerialPort.h"
|
||||
|
||||
#include <string>
|
||||
|
||||
#if defined(_WIN32) || defined(_WIN64)
|
||||
#define WIN32_LEAN_AND_MEAN
|
||||
#include <windows.h>
|
||||
#endif
|
||||
|
||||
namespace modem
|
||||
{
|
||||
namespace port
|
||||
{
|
||||
// ---------------------------------------------------------------------------
|
||||
// Constants
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
enum SERIAL_SPEED {
|
||||
SERIAL_1200 = 1200,
|
||||
SERIAL_2400 = 2400,
|
||||
SERIAL_4800 = 4800,
|
||||
SERIAL_9600 = 9600,
|
||||
SERIAL_19200 = 19200,
|
||||
SERIAL_38400 = 38400,
|
||||
SERIAL_76800 = 76800,
|
||||
SERIAL_115200 = 115200,
|
||||
SERIAL_230400 = 230400,
|
||||
SERIAL_460800 = 460800
|
||||
};
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Class Declaration
|
||||
// This class implements low-level routines to communicate over a RS232
|
||||
// serial port.
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
class HOST_SW_API UARTPort : public ISerialPort, public IModemPort {
|
||||
public:
|
||||
/// <summary>Initializes a new instance of the UARTPort class.</summary>
|
||||
UARTPort(const std::string& device, SERIAL_SPEED speed, bool assertRTS = false);
|
||||
/// <summary>Finalizes a instance of the UARTPort class.</summary>
|
||||
virtual ~UARTPort();
|
||||
|
||||
/// <summary>Opens a connection to the serial port.</summary>
|
||||
virtual bool open();
|
||||
|
||||
/// <summary>Reads data from the serial port.</summary>
|
||||
virtual int read(uint8_t* buffer, uint32_t length);
|
||||
/// <summary>Writes data to the serial port.</summary>
|
||||
virtual int write(const uint8_t* buffer, uint32_t length);
|
||||
|
||||
/// <summary>Closes the connection to the serial port.</summary>
|
||||
virtual void close();
|
||||
|
||||
#if defined(__APPLE__)
|
||||
/// <summary></summary>
|
||||
virtual int setNonblock(bool nonblock);
|
||||
#endif
|
||||
|
||||
protected:
|
||||
/// <summary>Initializes a new instance of the UARTPort class.</summary>
|
||||
UARTPort(SERIAL_SPEED speed, bool assertRTS = false);
|
||||
|
||||
std::string m_device;
|
||||
SERIAL_SPEED m_speed;
|
||||
bool m_assertRTS;
|
||||
#if defined(_WIN32) || defined(_WIN64)
|
||||
HANDLE m_handle;
|
||||
#else
|
||||
int m_fd;
|
||||
#endif
|
||||
|
||||
#if defined(_WIN32) || defined(_WIN64)
|
||||
/// <summary></summary>
|
||||
int readNonblock(uint8_t * buffer, uint32_t length);
|
||||
#else
|
||||
/// <summary></summary>
|
||||
bool canWrite();
|
||||
/// <summary></summary>
|
||||
bool setRaw();
|
||||
#endif
|
||||
}; // class HOST_SW_API UARTPort : public ISerialPort, public IModemPort
|
||||
} // namespace port
|
||||
} // namespace Modem
|
||||
|
||||
#endif // __UART_PORT_H__
|
||||
@ -0,0 +1,161 @@
|
||||
/**
|
||||
* Digital Voice Modem - Host Software
|
||||
* GPLv2 Open Source. Use is subject to license terms.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
* @package DVM / Host Software
|
||||
*
|
||||
*/
|
||||
//
|
||||
// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
|
||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
|
||||
//
|
||||
/*
|
||||
* Copyright (C) 2021 by Jonathan Naylor G4KLX
|
||||
* Copyright (C) 2021 by Bryan Biedenkapp N2PLL
|
||||
*
|
||||
* 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 "Defines.h"
|
||||
#include "modem/port/UDPPort.h"
|
||||
#include "Log.h"
|
||||
#include "Utils.h"
|
||||
|
||||
using namespace modem::port;
|
||||
using namespace network;
|
||||
|
||||
#include <cstring>
|
||||
#include <cassert>
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Constants
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
const uint32_t BUFFER_LENGTH = 2000U;
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Public Class Members
|
||||
// ---------------------------------------------------------------------------
|
||||
/// <summary>
|
||||
/// Initializes a new instance of the UDPPort class.
|
||||
/// </summary>
|
||||
/// <param name="address">Hostname/IP address to connect to.</param>
|
||||
/// <param name="modemPort">Port number.</param>
|
||||
/// <param name="master"></param>
|
||||
UDPPort::UDPPort(const std::string& address, uint32_t modemPort) :
|
||||
m_socket(modemPort),
|
||||
m_addr(),
|
||||
m_addrLen(0U),
|
||||
m_buffer(2000U, "UDP Port Ring Buffer")
|
||||
{
|
||||
assert(!address.empty());
|
||||
assert(modemPort > 0U);
|
||||
|
||||
if (UDPSocket::lookup(address, modemPort, m_addr, m_addrLen) != 0)
|
||||
m_addrLen = 0U;
|
||||
|
||||
if (m_addrLen > 0U) {
|
||||
std::string addrStr = UDPSocket::address(m_addr);
|
||||
LogWarning(LOG_HOST, "SECURITY: Remote modem expects IP address; %s for remote modem control", addrStr.c_str());
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Finalizes a instance of the UDPPort class.
|
||||
/// </summary>
|
||||
UDPPort::~UDPPort()
|
||||
{
|
||||
/* stub */
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Opens a connection to the port.
|
||||
/// </summary>
|
||||
/// <returns>True, if connection is opened, otherwise false.</returns>
|
||||
bool UDPPort::open()
|
||||
{
|
||||
if (m_addrLen == 0U) {
|
||||
LogError(LOG_NET, "Unable to resolve the address of the modem");
|
||||
return false;
|
||||
}
|
||||
|
||||
return m_socket.open(m_addr);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Reads data from the port.
|
||||
/// </summary>
|
||||
/// <param name="buffer">Buffer to read data from the port to.</param>
|
||||
/// <param name="length">Length of data to read from the port.</param>
|
||||
/// <returns>Actual length of data read from serial port.</returns>
|
||||
int UDPPort::read(uint8_t* buffer, uint32_t length)
|
||||
{
|
||||
assert(buffer != NULL);
|
||||
assert(length > 0U);
|
||||
|
||||
uint8_t data[BUFFER_LENGTH];
|
||||
::memset(data, 0x00U, BUFFER_LENGTH);
|
||||
|
||||
sockaddr_storage addr;
|
||||
uint32_t addrLen;
|
||||
int ret = m_socket.read(data, BUFFER_LENGTH, addr, addrLen);
|
||||
|
||||
// An error occurred on the socket
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
// Add new data to the ring buffer
|
||||
if (ret > 0) {
|
||||
if (UDPSocket::match(addr, m_addr)) {
|
||||
m_buffer.addData(data, ret);
|
||||
}
|
||||
else {
|
||||
std::string addrStr = UDPSocket::address(addr);
|
||||
LogWarning(LOG_HOST, "SECURITY: Remote modem mode encountered invalid IP address; %s", addrStr.c_str());
|
||||
}
|
||||
}
|
||||
|
||||
// Get required data from the ring buffer
|
||||
uint32_t avail = m_buffer.dataSize();
|
||||
if (avail < length)
|
||||
length = avail;
|
||||
|
||||
if (length > 0U)
|
||||
m_buffer.getData(buffer, length);
|
||||
|
||||
return int(length);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Writes data to the port.
|
||||
/// </summary>
|
||||
/// <param name="buffer">Buffer containing data to write to port.</param>
|
||||
/// <param name="length">Length of data to write to port.</param>
|
||||
/// <returns>Actual length of data written to the port.</returns>
|
||||
int UDPPort::write(const uint8_t* buffer, uint32_t length)
|
||||
{
|
||||
assert(buffer != NULL);
|
||||
assert(length > 0U);
|
||||
|
||||
return m_socket.write(buffer, length, m_addr, m_addrLen) ? int(length) : -1;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Closes the connection to the port.
|
||||
/// </summary>
|
||||
void UDPPort::close()
|
||||
{
|
||||
m_socket.close();
|
||||
}
|
||||
@ -0,0 +1,79 @@
|
||||
/**
|
||||
* Digital Voice Modem - Host Software
|
||||
* GPLv2 Open Source. Use is subject to license terms.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
* @package DVM / Host Software
|
||||
*
|
||||
*/
|
||||
//
|
||||
// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
|
||||
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
|
||||
//
|
||||
/*
|
||||
* Copyright (C) 2021 by Jonathan Naylor G4KLX
|
||||
* Copyright (C) 2021 by Bryan Biedenkapp N2PLL
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
#if !defined(__UDP_PORT_H__)
|
||||
#define __UDP_PORT_H__
|
||||
|
||||
#include "Defines.h"
|
||||
#include "modem/port/IModemPort.h"
|
||||
#include "RingBuffer.h"
|
||||
#include "network/UDPSocket.h"
|
||||
|
||||
#include <string>
|
||||
|
||||
namespace modem
|
||||
{
|
||||
namespace port
|
||||
{
|
||||
// ---------------------------------------------------------------------------
|
||||
// Class Declaration
|
||||
// This class implements low-level routines to communicate over UDP.
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
class HOST_SW_API UDPPort : public IModemPort {
|
||||
public:
|
||||
/// <summary>Initializes a new instance of the UDPPort class.</summary>
|
||||
UDPPort(const std::string& modemAddress, uint32_t modemPort);
|
||||
/// <summary>Finalizes a instance of the UDPPort class.</summary>
|
||||
virtual ~UDPPort();
|
||||
|
||||
/// <summary>Opens a connection to the serial port.</summary>
|
||||
virtual bool open();
|
||||
|
||||
/// <summary>Reads data from the serial port.</summary>
|
||||
virtual int read(uint8_t* buffer, uint32_t length);
|
||||
/// <summary>Writes data to the serial port.</summary>
|
||||
virtual int write(const uint8_t* buffer, uint32_t length);
|
||||
|
||||
/// <summary>Closes the connection to the serial port.</summary>
|
||||
virtual void close();
|
||||
|
||||
protected:
|
||||
network::UDPSocket m_socket;
|
||||
|
||||
sockaddr_storage m_addr;
|
||||
uint32_t m_addrLen;
|
||||
|
||||
RingBuffer<uint8_t> m_buffer;
|
||||
};
|
||||
} // namespace port
|
||||
} // namespace Modem
|
||||
|
||||
#endif // __UDP_PORT_H__
|
||||
Loading…
Reference in new issue