src/lib/platform/serialport.h

   1 #pragma once
   2
   3 /*
   4  * boblight
   5  * Copyright (C) Bob  2009
   6  *
   7  * boblight is free software: you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * boblight is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  15  * See the GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "os-dependent.h"
  22 #include "../../../include/CECExports.h"
  23 #include <string>
  24 #include <stdint.h>
  25 #include "../platform/threads.h"
  26
  27 #ifndef __WINDOWS__
  28 #include <termios.h>
  29 #else
  30 #include "../util/buffer.h"
  31 #endif
  32
  33 namespace CEC
  34 {
  35   #define PAR_NONE 0
  36   #define PAR_EVEN 1
  37   #define PAR_ODD  2
  38
  39   class CSerialPort
  40   {
  41     public:
  42       CSerialPort();
  43       virtual ~CSerialPort();
  44
  45       bool Open(std::string name, uint32_t baudrate, uint8_t databits = 8, uint8_t stopbits = 1, uint8_t parity = PAR_NONE);
  46       bool IsOpen();
  47       void Close();
  48
  49       int8_t Write(const cec_adapter_message &data);
  50       int32_t Read(uint8_t* data, uint32_t len, uint64_t iTimeoutMs = 0);
  51
  52       std::string GetError() { return m_error; }
  53       std::string GetName() { return m_name; }
  54
  55   private:
  56       bool SetBaudRate(uint32_t baudrate);
  57
  58       std::string     m_error;
  59       std::string     m_name;
  60       CMutex          m_mutex;
  61
  62   #ifdef __WINDOWS__
  63       bool SetTimeouts(bool bBlocking);
  64
  65       HANDLE             m_handle;
  66       bool               m_bIsOpen;
  67       uint32_t           m_iBaudrate;
  68       uint8_t            m_iDatabits;
  69       uint8_t            m_iStopbits;
  70       uint8_t            m_iParity;
  71       int64_t            m_iTimeout;
  72       CecBuffer<uint8_t> m_buffer;
  73       HANDLE             m_ovHandle;
  74   #else
  75       struct termios     m_options;
  76       int                m_fd;
  77   #endif
  78   };
  79 };