src/lib/implementations/SLCommandHandler.cpp

   1 /*
   2  * This file is part of the libCEC(R) library.
   3  *
   4  * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited.  All rights reserved.
   5  * libCEC(R) is an original work, containing original code.
   6  *
   7  * libCEC(R) is a trademark of Pulse-Eight Limited.
   8  *
   9  * This program is dual-licensed; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22  *
  23  *
  24  * Alternatively, you can license this library under a commercial license,
  25  * please contact Pulse-Eight Licensing for more information.
  26  *
  27  * For more information contact:
  28  * Pulse-Eight Licensing       <license@pulse-eight.com>
  29  *     http://www.pulse-eight.com/
  30  *     http://www.pulse-eight.net/
  31  */
  32
  33 #include "SLCommandHandler.h"
  34 #include "../devices/CECBusDevice.h"
  35 #include "../CECProcessor.h"
  36
  37 using namespace CEC;
  38
  39 CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
  40     CCECCommandHandler(busDevice),
  41     m_bAwaitingReceiveFailed(false)
  42 {
  43 }
  44
  45 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
  46 {
  47   if (command.parameters.size == 1 &&
  48       command.parameters[0] == 0x01)
  49   {
  50     /* enable SL */
  51     cec_command response;
  52     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
  53     response.PushBack(0x02);
  54     response.PushBack(0x05);
  55
  56     return m_busDevice->GetProcessor()->Transmit(response);
  57   }
  58
  59   return false;
  60 }
  61
  62 bool CSLCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
  63 {
  64   /* imitate LG devices */
  65   CCECBusDevice *device = GetDevice(command.destination);
  66   if (device)
  67     device->SetVendorId(CEC_VENDOR_LG);
  68
  69   return CCECCommandHandler::HandleGiveDeviceVendorId(command);
  70 }
  71
  72 bool CSLCommandHandler::HandleCommand(const cec_command &command)
  73 {
  74   bool bHandled(false);
  75   if (m_busDevice->MyLogicalAddressContains(command.destination))
  76   {
  77     switch(command.opcode)
  78     {
  79     case CEC_OPCODE_VENDOR_COMMAND:
  80       bHandled = HandleVendorCommand(command);
  81       break;
  82     default:
  83       break;
  84     }
  85   }
  86
  87   if (!bHandled)
  88     bHandled = CCECCommandHandler::HandleCommand(command);
  89
  90   return bHandled;
  91 }
  92
  93
  94 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
  95 {
  96   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
  97   m_bAwaitingReceiveFailed = true;
  98 }
  99
 100 bool CSLCommandHandler::HandleReceiveFailed(void)
 101 {
 102   if (m_bAwaitingReceiveFailed)
 103   {
 104     m_bAwaitingReceiveFailed = false;
 105     return false;
 106   }
 107
 108   return true;
 109 }