src/lib/platform/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-dependent.h"
  35 #include <cectypes.h>
  36 #include <string>
  37 #include <stdint.h>
  38 #include "../AdapterCommunication.h"
  39 #include "../platform/threads.h"
  40
  41 #ifndef __WINDOWS__
  42 #include <termios.h>
  43 #else
  44 #include "../util/buffer.h"
  45 #endif
  46
  47 namespace CEC
  48 {
  49   #define PAR_NONE 0
  50   #define PAR_EVEN 1
  51   #define PAR_ODD  2
  52
  53   class CSerialPort
  54   {
  55     public:
  56       CSerialPort();
  57       virtual ~CSerialPort();
  58
  59       bool Open(std::string name, uint32_t baudrate, uint8_t databits = 8, uint8_t stopbits = 1, uint8_t parity = PAR_NONE);
  60       bool IsOpen();
  61       void Close();
  62
  63       int8_t Write(CCECAdapterMessage *data);
  64       int32_t Read(uint8_t* data, uint32_t len, uint64_t iTimeoutMs = 0);
  65
  66       std::string GetError() { return m_error; }
  67       std::string GetName() { return m_name; }
  68
  69   private:
  70       bool SetBaudRate(uint32_t baudrate);
  71
  72       std::string     m_error;
  73       std::string     m_name;
  74       CMutex          m_mutex;
  75       bool            m_tostdout;
  76
  77   #ifdef __WINDOWS__
  78       bool SetTimeouts(bool bBlocking);
  79
  80       HANDLE             m_handle;
  81       bool               m_bIsOpen;
  82       uint32_t           m_iBaudrate;
  83       uint8_t            m_iDatabits;
  84       uint8_t            m_iStopbits;
  85       uint8_t            m_iParity;
  86       int64_t            m_iTimeout;
  87       CecBuffer<uint8_t> m_buffer;
  88       HANDLE             m_ovHandle;
  89   #else
  90       struct termios     m_options;
  91       int                m_fd;
  92   #endif
  93   };
  94 };