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 "../devices/CECPlaybackDevice.h"
  36 #include "../devices/CECTV.h"
  37 #include "../CECProcessor.h"
  38 #include "../LibCEC.h"
  39 #include "../CECClient.h"
  40
  41 #define VL_POWER_CHANGE 0x20
  42 #define VL_POWERED_UP   0x00
  43 #define VL_POWERED_DOWN 0x01
  44
  45 using namespace CEC;
  46 using namespace PLATFORM;
  47
  48 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  49 #define ToString(p) LIB_CEC->ToString(p)
  50
  51 // wait this amount of ms before trying to switch sources after receiving the message from the TV that it's powered on
  52 #define SOURCE_SWITCH_DELAY_MS 1000
  53
  54 CVLCommandHandler::CVLCommandHandler(CCECBusDevice *busDevice) :
  55     CCECCommandHandler(busDevice),
  56     m_iPowerUpEventReceived(0)
  57 {
  58   m_vendorId = CEC_VENDOR_PANASONIC;
  59 }
  60
  61 bool CVLCommandHandler::InitHandler(void)
  62 {
  63   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  64   if (primary && primary->GetLogicalAddress() != CECDEVICE_UNREGISTERED)
  65   {
  66     /* use the VL commandhandler for the primary device that is handled by libCEC */
  67     if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
  68     {
  69       if (primary && m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  70       {
  71         primary->SetVendorId(CEC_VENDOR_PANASONIC);
  72         primary->ReplaceHandler(false);
  73       }
  74     }
  75
  76     if (primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
  77       return m_processor->GetPrimaryClient()->ChangeDeviceType(CEC_DEVICE_TYPE_RECORDING_DEVICE, CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
  78
  79     m_processor->GetTV()->RequestPowerStatus(primary->GetLogicalAddress(), false);
  80   }
  81
  82   return CCECCommandHandler::InitHandler();
  83 }
  84
  85 int CVLCommandHandler::HandleDeviceVendorCommandWithId(const cec_command &command)
  86 {
  87   if (command.parameters[0] != 0x00 ||
  88       command.parameters[1] != 0x80 ||
  89       command.parameters[2] != 0x45)
  90     return CEC_ABORT_REASON_INVALID_OPERAND;
  91
  92   if (command.initiator == CECDEVICE_TV &&
  93       command.destination == CECDEVICE_BROADCAST &&
  94       command.parameters.At(3) == VL_POWER_CHANGE)
  95   {
  96     if (command.parameters.At(4) == VL_POWERED_UP)
  97     {
  98       // set the power up event time
  99       {
 100         CLockObject lock(m_mutex);
 101         if (m_iPowerUpEventReceived == 0)
 102           m_iPowerUpEventReceived = GetTimeMs();
 103       }
 104       // mark the TV as powered on
 105       m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_ON);
 106     }
 107     else if (command.parameters.At(4) == VL_POWERED_DOWN)
 108     {
 109       // reset the power up event time
 110       {
 111         CLockObject lock(m_mutex);
 112         m_iPowerUpEventReceived = 0;
 113       }
 114       // mark the TV as powered off
 115       m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 116     }
 117     else
 118       LIB_CEC->AddLog(CEC_LOG_DEBUG, "skipping unknown vendor command");
 119
 120     return COMMAND_HANDLED;
 121   }
 122
 123   return CCECCommandHandler::HandleDeviceVendorCommandWithId(command);
 124 }
 125
 126 bool CVLCommandHandler::PowerUpEventReceived(void)
 127 {
 128   bool bPowerUpEventReceived(true);
 129
 130   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
 131   {
 132     // get the status from the TV
 133     CCECBusDevice *tv = m_processor->GetTV();
 134     if (tv && tv->GetCurrentVendorId() == CEC_VENDOR_PANASONIC)
 135     {
 136       CVLCommandHandler *handler = static_cast<CVLCommandHandler *>(tv->GetHandler());
 137       bPowerUpEventReceived = handler ? handler->PowerUpEventReceived() : false;
 138       tv->MarkHandlerReady();
 139     }
 140   }
 141   else
 142   {
 143     // get the current status
 144     {
 145       CLockObject lock(m_mutex);
 146       bPowerUpEventReceived = m_iPowerUpEventReceived > 0 &&
 147                               GetTimeMs() - m_iPowerUpEventReceived > SOURCE_SWITCH_DELAY_MS;
 148     }
 149
 150     // if we didn't receive the event, check if the TV is already marked as powered on
 151     if (!bPowerUpEventReceived && m_busDevice->GetCurrentPowerStatus() == CEC_POWER_STATUS_ON)
 152     {
 153       CLockObject lock(m_mutex);
 154       m_iPowerUpEventReceived = GetTimeMs();
 155       bPowerUpEventReceived = true;
 156     }
 157   }
 158
 159   return bPowerUpEventReceived;
 160 }
 161
 162 int CVLCommandHandler::HandleStandby(const cec_command &command)
 163 {
 164   // reset the power up event time
 165   {
 166     CLockObject lock(m_mutex);
 167     m_iPowerUpEventReceived = 0;
 168   }
 169
 170   return CCECCommandHandler::HandleStandby(command);
 171 }
 172
 173 int CVLCommandHandler::HandleVendorCommand(const cec_command &command)
 174 {
 175   // some vendor command voodoo that will enable more buttons on the remote
 176   if (command.parameters.size == 3 &&
 177       command.parameters[0] == 0x10 &&
 178       command.parameters[1] == 0x01 &&
 179       command.parameters[2] == 0x05)
 180   {
 181     cec_command response;
 182     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
 183     uint8_t iResponseData[] = {0x10, 0x02, 0xFF, 0xFF, 0x00, 0x05, 0x05, 0x45, 0x55, 0x5c, 0x58, 0x32};
 184     response.PushArray(12, iResponseData);
 185
 186     Transmit(response, true);
 187
 188     return COMMAND_HANDLED;
 189   }
 190
 191   return CEC_ABORT_REASON_INVALID_OPERAND;
 192 }
 193
 194 bool CVLCommandHandler::SourceSwitchAllowed(void)
 195 {
 196   return PowerUpEventReceived();
 197 }