src/lib/platform/sockets/serialport.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited.  All rights reserved.
   6  * libCEC(R) is an original work, containing original code.
   7  *
   8  * libCEC(R) is a trademark of Pulse-Eight Limited.
   9  *
  10  * This program is dual-licensed; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  *
  24  *
  25  * Alternatively, you can license this library under a commercial license,
  26  * please contact Pulse-Eight Licensing for more information.
  27  *
  28  * For more information contact:
  29  * Pulse-Eight Licensing       <license@pulse-eight.com>
  30  *     http://www.pulse-eight.com/
  31  *     http://www.pulse-eight.net/
  32  */
  33
  34 #include "../os.h"
  35 #include "../util/buffer.h"
  36
  37 #include <string>
  38 #include <stdint.h>
  39
  40 #if !defined(__WINDOWS__)
  41 #include <termios.h>
  42 #endif
  43
  44 #include "socket.h"
  45
  46 namespace PLATFORM
  47 {
  48   #define PAR_NONE 0
  49   #define PAR_EVEN 1
  50   #define PAR_ODD  2
  51
  52   class CSerialPort : public CSocket
  53   {
  54     public:
  55       CSerialPort(void);
  56       virtual ~CSerialPort(void) {}
  57
  58       bool Open(std::string name, uint32_t baudrate, uint8_t databits = 8, uint8_t stopbits = 1, uint8_t parity = PAR_NONE);
  59
  60       CStdString GetName(void) const
  61       {
  62         CStdString strName;
  63         strName = m_strName;
  64         return strName;
  65       }
  66
  67     #ifdef __WINDOWS__
  68       virtual bool IsOpen(void);
  69       virtual void Close(void);
  70       virtual int64_t Write(uint8_t* data, uint32_t len);
  71       virtual int32_t Read(uint8_t* data, uint32_t len, uint64_t iTimeoutMs = 0);
  72     #endif
  73
  74     private:
  75       bool SetBaudRate(uint32_t baudrate);
  76
  77     private:
  78     #ifdef __WINDOWS__
  79       void FormatWindowsError(int iErrorCode, CStdString &strMessage);
  80       bool SetTimeouts(bool bBlocking);
  81
  82       HANDLE                m_handle;
  83       bool                  m_bIsOpen;
  84       uint32_t              m_iBaudrate;
  85       uint8_t               m_iDatabits;
  86       uint8_t               m_iStopbits;
  87       uint8_t               m_iParity;
  88       int64_t               m_iTimeout;
  89       SyncedBuffer<uint8_t> m_buffer;
  90       HANDLE                m_ovHandle;
  91   #else
  92       struct termios     m_options;
  93   #endif
  94       std::string  m_strName;
  95       bool         m_bToStdOut;
  96   };
  97 };