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
  57 bool CVLCommandHandler::InitHandler(void)
  58 {
  59   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  60   if (primary && primary->GetLogicalAddress() != CECDEVICE_UNREGISTERED)
  61   {
  62     /* use the VL commandhandler for the primary device that is handled by libCEC */
  63     if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
  64     {
  65       if (primary && m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  66       {
  67         primary->SetVendorId(CEC_VENDOR_PANASONIC);
  68         primary->ReplaceHandler(false);
  69       }
  70     }
  71
  72     if (primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
  73       return m_processor->GetPrimaryClient()->ChangeDeviceType(CEC_DEVICE_TYPE_RECORDING_DEVICE, CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
  74   }
  75
  76   return CCECCommandHandler::InitHandler();
  77 }
  78
  79 int CVLCommandHandler::HandleDeviceVendorCommandWithId(const cec_command &command)
  80 {
  81   if (command.initiator == CECDEVICE_TV &&
  82       command.destination == CECDEVICE_BROADCAST &&
  83       command.parameters.At(3) == VL_POWER_CHANGE)
  84   {
  85     if (command.parameters.At(4) == VL_POWERED_UP)
  86     {
  87       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV powered up");
  88       {
  89         CLockObject lock(m_mutex);
  90         m_bPowerUpEventReceived = true;
  91       }
  92       m_processor->TransmitPendingActiveSourceCommands();
  93     }
  94     else if (command.parameters.At(4) == VL_POWERED_DOWN)
  95       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV powered down");
  96     else if (command.parameters.At(4) == VL_POWERED_DOWN)
  97       LIB_CEC->AddLog(CEC_LOG_DEBUG, "unknown vendor command");
  98
  99     return COMMAND_HANDLED;
 100   }
 101
 102   return CCECCommandHandler::HandleDeviceVendorCommandWithId(command);
 103 }
 104
 105 bool CVLCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 106 {
 107   bool bPowerUpEventReceived(false);
 108
 109   CCECBusDevice *tv = m_processor->GetDevice(CECDEVICE_TV);
 110   if (tv && tv->GetCurrentVendorId() == CEC_VENDOR_PANASONIC)
 111   {
 112     CVLCommandHandler *handler = static_cast<CVLCommandHandler *>(tv->GetHandler());
 113     bPowerUpEventReceived = handler ? handler->PowerUpEventReceived() : false;
 114     tv->MarkHandlerReady();
 115   }
 116
 117   if (!bPowerUpEventReceived)
 118   {
 119     CLockObject lock(m_mutex);
 120     // wait until we received the event
 121     m_bActiveSourcePending = true;
 122     return true;
 123   }
 124   else
 125   {
 126     // transmit standard active source message
 127     return CCECCommandHandler::TransmitActiveSource(iInitiator, iPhysicalAddress);
 128   }
 129 }
 130
 131 bool CVLCommandHandler::TransmitPendingActiveSourceCommands(void)
 132 {
 133   bool bTransmitCommand(false);
 134   {
 135     CLockObject lock(m_mutex);
 136     bTransmitCommand = m_bActiveSourcePending;
 137     m_bActiveSourcePending = false;
 138   }
 139
 140   if (bTransmitCommand)
 141   {
 142     LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
 143     return CCECCommandHandler::TransmitActiveSource(m_busDevice->GetLogicalAddress(), m_busDevice->GetCurrentPhysicalAddress()) &&
 144         TransmitMenuState(m_busDevice->GetLogicalAddress(), CECDEVICE_TV, CEC_MENU_STATE_ACTIVATED);
 145   }
 146   return true;
 147 }
 148
 149 bool CVLCommandHandler::PowerUpEventReceived(void)
 150 {
 151   {
 152     CLockObject lock(m_mutex);
 153     if (m_bPowerUpEventReceived)
 154       return true;
 155   }
 156
 157   cec_logical_address sourceLA = m_busDevice->GetLogicalAddress();
 158   if (sourceLA == CECDEVICE_TV)
 159     sourceLA = m_processor->GetPrimaryDevice()->GetLogicalAddress();
 160
 161   cec_power_status powerStatus = m_busDevice->GetPowerStatus(sourceLA);
 162
 163   CLockObject lock(m_mutex);
 164   m_bPowerUpEventReceived = (powerStatus == CEC_POWER_STATUS_ON);
 165   return m_bPowerUpEventReceived;
 166 }