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 #define VL_UNKNOWN1     0x06
  45
  46 using namespace CEC;
  47 using namespace PLATFORM;
  48
  49 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  50 #define ToString(p) LIB_CEC->ToString(p)
  51
  52 // wait this amount of ms before trying to switch sources after receiving the message from the TV that it's powered on
  53 #define SOURCE_SWITCH_DELAY_MS 1000
  54
  55 CVLCommandHandler::CVLCommandHandler(CCECBusDevice *busDevice,
  56                                      int32_t iTransmitTimeout /* = CEC_DEFAULT_TRANSMIT_TIMEOUT */,
  57                                      int32_t iTransmitWait /* = CEC_DEFAULT_TRANSMIT_WAIT */,
  58                                      int8_t iTransmitRetries /* = CEC_DEFAULT_TRANSMIT_RETRIES */,
  59                                      int64_t iActiveSourcePending /* = 0 */) :
  60     CCECCommandHandler(busDevice, iTransmitTimeout, iTransmitWait, iTransmitRetries, iActiveSourcePending),
  61     m_iPowerUpEventReceived(0)
  62 {
  63   m_vendorId = CEC_VENDOR_PANASONIC;
  64 }
  65
  66 bool CVLCommandHandler::InitHandler(void)
  67 {
  68   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  69   if (primary && primary->GetLogicalAddress() != CECDEVICE_UNREGISTERED)
  70   {
  71     /* use the VL commandhandler for the primary device that is handled by libCEC */
  72     if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
  73     {
  74       if (primary && m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  75       {
  76         primary->SetVendorId(CEC_VENDOR_PANASONIC);
  77         primary->ReplaceHandler(false);
  78       }
  79     }
  80
  81     if (primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
  82       return m_processor->GetPrimaryClient()->ChangeDeviceType(CEC_DEVICE_TYPE_RECORDING_DEVICE, CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
  83
  84     m_processor->GetTV()->RequestPowerStatus(primary->GetLogicalAddress(), false);
  85   }
  86
  87   return CCECCommandHandler::InitHandler();
  88 }
  89
  90 int CVLCommandHandler::HandleDeviceVendorCommandWithId(const cec_command &command)
  91 {
  92   if (command.parameters[0] != 0x00 ||
  93       command.parameters[1] != 0x80 ||
  94       command.parameters[2] != 0x45)
  95     return CEC_ABORT_REASON_INVALID_OPERAND;
  96
  97   if (command.initiator == CECDEVICE_TV &&
  98       command.parameters.At(3) == VL_UNKNOWN1)
  99   {
 100     // set the power up event time
 101     {
 102       CLockObject lock(m_mutex);
 103       if (m_iPowerUpEventReceived == 0)
 104         m_iPowerUpEventReceived = GetTimeMs();
 105     }
 106     // mark the TV as powered on
 107     m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_ON);
 108   }
 109   else if (command.initiator == CECDEVICE_TV &&
 110       command.destination == CECDEVICE_BROADCAST &&
 111       command.parameters.At(3) == VL_POWER_CHANGE)
 112   {
 113     if (command.parameters.At(4) == VL_POWERED_UP)
 114     {
 115       // set the power up event time
 116       {
 117         CLockObject lock(m_mutex);
 118         if (m_iPowerUpEventReceived == 0)
 119           m_iPowerUpEventReceived = GetTimeMs();
 120       }
 121       // mark the TV as powered on
 122       m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_ON);
 123     }
 124     else if (command.parameters.At(4) == VL_POWERED_DOWN)
 125     {
 126       // reset the power up event time
 127       {
 128         CLockObject lock(m_mutex);
 129         m_iPowerUpEventReceived = 0;
 130       }
 131       // mark the TV as powered off
 132       m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 133     }
 134     else
 135       LIB_CEC->AddLog(CEC_LOG_DEBUG, "skipping unknown vendor command");
 136
 137     return COMMAND_HANDLED;
 138   }
 139
 140   return CCECCommandHandler::HandleDeviceVendorCommandWithId(command);
 141 }
 142
 143 bool CVLCommandHandler::PowerUpEventReceived(void)
 144 {
 145   bool bPowerUpEventReceived(true);
 146
 147   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
 148   {
 149     // get the status from the TV
 150     CCECBusDevice *tv = m_processor->GetTV();
 151     if (tv && tv->GetCurrentVendorId() == CEC_VENDOR_PANASONIC)
 152     {
 153       CVLCommandHandler *handler = static_cast<CVLCommandHandler *>(tv->GetHandler());
 154       bPowerUpEventReceived = handler ? handler->PowerUpEventReceived() : false;
 155       tv->MarkHandlerReady();
 156     }
 157   }
 158   else
 159   {
 160     // get the current status
 161     {
 162       CLockObject lock(m_mutex);
 163       bPowerUpEventReceived = m_iPowerUpEventReceived > 0 &&
 164                               GetTimeMs() - m_iPowerUpEventReceived > SOURCE_SWITCH_DELAY_MS;
 165     }
 166
 167     // if we didn't receive the event, check if the TV is already marked as powered on
 168     if (!bPowerUpEventReceived && m_busDevice->GetCurrentPowerStatus() == CEC_POWER_STATUS_ON)
 169     {
 170       CLockObject lock(m_mutex);
 171       m_iPowerUpEventReceived = GetTimeMs();
 172       bPowerUpEventReceived = true;
 173     }
 174   }
 175
 176   return bPowerUpEventReceived;
 177 }
 178
 179 int CVLCommandHandler::HandleStandby(const cec_command &command)
 180 {
 181   // reset the power up event time
 182   {
 183     CLockObject lock(m_mutex);
 184     m_iPowerUpEventReceived = 0;
 185   }
 186
 187   return CCECCommandHandler::HandleStandby(command);
 188 }
 189
 190 int CVLCommandHandler::HandleVendorCommand(const cec_command &command)
 191 {
 192   // some vendor command voodoo that will enable more buttons on the remote
 193   if (command.parameters.size == 3 &&
 194       command.parameters[0] == 0x10 &&
 195       command.parameters[1] == 0x01 &&
 196       command.parameters[2] == 0x05)
 197   {
 198     cec_command response;
 199     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
 200     uint8_t iResponseData[] = {0x10, 0x02, 0xFF, 0xFF, 0x00, 0x05, 0x05, 0x45, 0x55, 0x5c, 0x58, 0x32};
 201     response.PushArray(12, iResponseData);
 202
 203     Transmit(response, true);
 204
 205     return COMMAND_HANDLED;
 206   }
 207
 208   return CEC_ABORT_REASON_INVALID_OPERAND;
 209 }
 210
 211 bool CVLCommandHandler::SourceSwitchAllowed(void)
 212 {
 213   return PowerUpEventReceived();
 214 }
 215
 216 int CVLCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 217 {
 218   if (command.initiator == CECDEVICE_TV)
 219   {
 220     // set the power up event time
 221     {
 222       CLockObject lock(m_mutex);
 223       if (m_iPowerUpEventReceived == 0)
 224         m_iPowerUpEventReceived = GetTimeMs();
 225     }
 226     // mark the TV as powered on
 227     m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_ON);
 228   }
 229
 230   return CCECCommandHandler::HandleSystemAudioModeRequest(command);
 231 }