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