src/lib/AdapterCommunication.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 <cectypes.h>
  35 #include "platform/threads.h"
  36 #include "util/buffer.h"
  37 #include <string>
  38
  39 namespace CEC
  40 {
  41   class CSerialPort;
  42   class CLibCEC;
  43
  44   class CAdapterCommunication : private CThread
  45   {
  46   public:
  47     CAdapterCommunication(CLibCEC *controller);
  48     virtual ~CAdapterCommunication();
  49
  50     bool Open(const char *strPort, uint16_t iBaudRate = 38400, uint32_t iTimeoutMs = 10000);
  51     bool Read(cec_adapter_message &msg, uint32_t iTimeout = 1000);
  52     bool Write(const cec_adapter_message &frame);
  53     bool PingAdapter(void);
  54     void Close(void);
  55     bool IsOpen(void) const;
  56     std::string GetError(void) const;
  57
  58     void *Process(void);
  59
  60     bool StartBootloader(void);
  61     bool SetAckMask(uint16_t iMask);
  62     static void PushEscaped(cec_adapter_message &vec, uint8_t byte);
  63     static void FormatAdapterMessage(const cec_command &command, cec_adapter_message &packet);
  64
  65   private:
  66     void WriteNextCommand(void);
  67     void AddData(uint8_t *data, uint8_t iLen);
  68     bool ReadFromDevice(uint32_t iTimeout);
  69
  70     CSerialPort *                  m_port;
  71     CLibCEC *                      m_controller;
  72     CecBuffer<uint8_t>             m_inBuffer;
  73     CecBuffer<cec_adapter_message> m_outBuffer;
  74     CMutex                         m_bufferMutex;
  75     CMutex                         m_commMutex;
  76     CCondition                     m_rcvCondition;
  77   };
  78 };