src/lib/implementations/VLCommandHandler.cpp

   1 /*
   2  * This file is part of the libCEC(R) library.
   3  *
   4  * libCEC(R) is Copyright (C) 2011-2012 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 "VLCommandHandler.h"
  34 #include "../devices/CECBusDevice.h"
  35 #include "../CECProcessor.h"
  36 #include "../LibCEC.h"
  37 #include "../CECClient.h"
  38
  39 #define VL_POWER_CHANGE 0x20
  40 #define VL_POWERED_UP   0x00
  41 #define VL_POWERED_DOWN 0x01
  42
  43 using namespace CEC;
  44 using namespace PLATFORM;
  45
  46 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  47 #define ToString(p) LIB_CEC->ToString(p)
  48
  49 CVLCommandHandler::CVLCommandHandler(CCECBusDevice *busDevice) :
  50     CCECCommandHandler(busDevice),
  51     m_bActiveSourcePending(false),
  52     m_bPowerUpEventReceived(false)
  53 {
  54   m_vendorId = CEC_VENDOR_PANASONIC;
  55
  56   /* use the VL commandhandler for the primary device that is handled by libCEC */
  57   if (busDevice->GetLogicalAddress() == CECDEVICE_TV)
  58   {
  59     CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  60     if (primary && m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  61     {
  62       primary->SetVendorId(CEC_VENDOR_PANASONIC);
  63       primary->ReplaceHandler(false);
  64     }
  65   }
  66 }
  67
  68 bool CVLCommandHandler::InitHandler(void)
  69 {
  70   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  71   if (primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
  72     return m_processor->GetPrimaryClient()->ChangeDeviceType(CEC_DEVICE_TYPE_RECORDING_DEVICE, CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
  73
  74   return CCECCommandHandler::InitHandler();
  75 }
  76
  77 bool CVLCommandHandler::HandleDeviceVendorCommandWithId(const cec_command &command)
  78 {
  79   if (command.initiator == CECDEVICE_TV &&
  80       command.destination == CECDEVICE_BROADCAST &&
  81       command.parameters.At(3) == VL_POWER_CHANGE)
  82   {
  83     if (command.parameters.At(4) == VL_POWERED_UP)
  84     {
  85       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV powered up");
  86       {
  87         CLockObject lock(m_mutex);
  88         m_bPowerUpEventReceived = true;
  89       }
  90       m_processor->TransmitPendingActiveSourceCommands();
  91     }
  92     else if (command.parameters.At(4) == VL_POWERED_DOWN)
  93       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV powered down");
  94     else if (command.parameters.At(4) == VL_POWERED_DOWN)
  95       LIB_CEC->AddLog(CEC_LOG_DEBUG, "unknown vendor command");
  96
  97     return true;
  98   }
  99
 100   return CCECCommandHandler::HandleDeviceVendorCommandWithId(command);
 101 }
 102
 103 bool CVLCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 104 {
 105   bool bPowerUpEventReceived(false);
 106
 107   CCECBusDevice *tv = m_processor->GetDevice(CECDEVICE_TV);
 108   if (tv && tv->GetCurrentVendorId() == CEC_VENDOR_PANASONIC)
 109   {
 110     CVLCommandHandler *handler = static_cast<CVLCommandHandler *>(tv->GetHandler());
 111     bPowerUpEventReceived = handler ? handler->PowerUpEventReceived() : false;
 112   }
 113
 114   if (!bPowerUpEventReceived)
 115   {
 116     CLockObject lock(m_mutex);
 117     // wait until we received the event
 118     m_bActiveSourcePending = true;
 119     return true;
 120   }
 121   else
 122   {
 123     // transmit standard active source message
 124     return CCECCommandHandler::TransmitActiveSource(iInitiator, iPhysicalAddress) &&
 125         TransmitMenuState(iInitiator, CECDEVICE_TV, CEC_MENU_STATE_ACTIVATED);
 126   }
 127 }
 128
 129 bool CVLCommandHandler::TransmitPendingActiveSourceCommands(void)
 130 {
 131   bool bTransmitCommand(false);
 132   {
 133     CLockObject lock(m_mutex);
 134     bTransmitCommand = m_bActiveSourcePending;
 135     m_bActiveSourcePending = false;
 136   }
 137
 138   if (bTransmitCommand)
 139   {
 140     LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
 141     return CCECCommandHandler::TransmitActiveSource(m_busDevice->GetLogicalAddress(), m_busDevice->GetCurrentPhysicalAddress()) &&
 142         TransmitMenuState(m_busDevice->GetLogicalAddress(), CECDEVICE_TV, CEC_MENU_STATE_ACTIVATED);
 143   }
 144   return true;
 145 }
 146
 147 bool CVLCommandHandler::PowerUpEventReceived(void)
 148 {
 149   {
 150     CLockObject lock(m_mutex);
 151     if (m_bPowerUpEventReceived)
 152       return true;
 153   }
 154
 155   cec_power_status powerStatus = m_busDevice->GetCurrentPowerStatus();
 156
 157   CLockObject lock(m_mutex);
 158   m_bPowerUpEventReceived = (powerStatus == CEC_POWER_STATUS_ON);
 159   return m_bPowerUpEventReceived;
 160 }