src/lib/adapter/USBCECAdapterCommunication.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011-2012 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 "../../../include/cectypes.h"
  35 #include "../platform/threads/threads.h"
  36 #include "../platform/util/buffer.h"
  37 #include "AdapterCommunication.h"
  38 #include "USBCECAdapterMessage.h"
  39
  40 namespace PLATFORM
  41 {
  42   class ISocket;
  43 }
  44
  45 namespace CEC
  46 {
  47   class CCECProcessor;
  48
  49   class CUSBCECAdapterCommunication : public IAdapterCommunication, private PLATFORM::CThread
  50   {
  51   public:
  52     CUSBCECAdapterCommunication(CCECProcessor *processor, const char *strPort, uint16_t iBaudRate = 38400);
  53     virtual ~CUSBCECAdapterCommunication();
  54
  55     virtual bool Open(IAdapterCommunicationCallback *cb, uint32_t iTimeoutMs = 10000);
  56     virtual void Close(void);
  57     virtual bool IsOpen(void);
  58     virtual CStdString GetError(void) const;
  59
  60     bool Read(cec_command &command, uint32_t iTimeout);
  61     cec_adapter_message_state Write(const cec_command &data, uint8_t iMaxTries, uint8_t iLineTimeout = 3, uint8_t iRetryLineTimeout = 3);
  62
  63     virtual bool SetLineTimeout(uint8_t iTimeout);
  64     virtual bool StartBootloader(void);
  65     virtual bool SetAckMask(uint16_t iMask);
  66     virtual bool PingAdapter(void);
  67     virtual uint16_t GetFirmwareVersion(void);
  68     virtual bool SetControlledMode(bool controlled);
  69     virtual bool PersistConfiguration(libcec_configuration * UNUSED(configuration)) { return false; } // TODO
  70
  71     void *Process(void);
  72   private:
  73     bool CheckAdapter(uint32_t iTimeoutMs = 10000);
  74     bool Write(CCECAdapterMessage *data);
  75     bool Read(CCECAdapterMessage &msg, uint32_t iTimeout = 1000);
  76     bool ParseMessage(const CCECAdapterMessage &msg);
  77     void SendMessageToAdapter(CCECAdapterMessage *msg);
  78     void WriteNextCommand(void);
  79     void AddData(uint8_t *data, size_t iLen);
  80     bool ReadFromDevice(uint32_t iTimeout, size_t iSize = 256);
  81     bool WaitForAck(CCECAdapterMessage &message);
  82
  83     PLATFORM::ISocket *                          m_port;
  84     CCECProcessor *                              m_processor;
  85     PLATFORM::SyncedBuffer<CCECAdapterMessage *> m_inBuffer;
  86     PLATFORM::SyncedBuffer<CCECAdapterMessage *> m_outBuffer;
  87     PLATFORM::CMutex                             m_mutex;
  88     PLATFORM::CCondition<volatile bool &>        m_rcvCondition;
  89     volatile bool                                m_bHasData;
  90     uint8_t                                      m_iLineTimeout;
  91     uint16_t                                     m_iFirmwareVersion;
  92     cec_command                                  m_currentframe;
  93     cec_logical_address                          m_lastInitiator;
  94     CCECAdapterMessage                           m_currentAdapterMessage;
  95     bool                                         m_bNextIsEscaped;
  96     bool                                         m_bGotStart;
  97     IAdapterCommunicationCallback *              m_callback;
  98   };
  99 };