src/lib/implementations/CECCommandHandler.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 "CECCommandHandler.h"
  34 #include "../devices/CECBusDevice.h"
  35 #include "../devices/CECAudioSystem.h"
  36 #include "../devices/CECPlaybackDevice.h"
  37 #include "../CECClient.h"
  38 #include "../CECProcessor.h"
  39 #include "../LibCEC.h"
  40 #include "../CECTypeUtils.h"
  41 #include "../platform/util/util.h"
  42
  43 using namespace CEC;
  44 using namespace std;
  45 using namespace PLATFORM;
  46
  47 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  48 #define ToString(p) CCECTypeUtils::ToString(p)
  49
  50 CCECCommandHandler::CCECCommandHandler(CCECBusDevice *busDevice) :
  51     m_busDevice(busDevice),
  52     m_processor(m_busDevice->GetProcessor()),
  53     m_iTransmitTimeout(CEC_DEFAULT_TRANSMIT_TIMEOUT),
  54     m_iTransmitWait(CEC_DEFAULT_TRANSMIT_WAIT),
  55     m_iTransmitRetries(CEC_DEFAULT_TRANSMIT_RETRIES),
  56     m_bHandlerInited(false),
  57     m_bOPTSendDeckStatusUpdateOnActiveSource(false),
  58     m_vendorId(CEC_VENDOR_UNKNOWN),
  59     m_waitForResponse(new CWaitForResponse),
  60     m_iActiveSourcePending(0)
  61 {
  62 }
  63
  64 CCECCommandHandler::~CCECCommandHandler(void)
  65 {
  66   DELETE_AND_NULL(m_waitForResponse);
  67 }
  68
  69 bool CCECCommandHandler::HandleCommand(const cec_command &command)
  70 {
  71   if (command.opcode_set == 0)
  72     return HandlePoll(command);
  73
  74   int iHandled(CEC_ABORT_REASON_UNRECOGNIZED_OPCODE);
  75
  76   LIB_CEC->AddCommand(command);
  77
  78   switch(command.opcode)
  79   {
  80   case CEC_OPCODE_REPORT_POWER_STATUS:
  81     iHandled = HandleReportPowerStatus(command);
  82     break;
  83   case CEC_OPCODE_CEC_VERSION:
  84     iHandled = HandleDeviceCecVersion(command);
  85     break;
  86   case CEC_OPCODE_SET_MENU_LANGUAGE:
  87     iHandled = HandleSetMenuLanguage(command);
  88     break;
  89   case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
  90     iHandled = HandleGivePhysicalAddress(command);
  91     break;
  92   case CEC_OPCODE_GET_MENU_LANGUAGE:
  93     iHandled = HandleGiveMenuLanguage(command);
  94     break;
  95   case CEC_OPCODE_GIVE_OSD_NAME:
  96     iHandled = HandleGiveOSDName(command);
  97     break;
  98   case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
  99     iHandled = HandleGiveDeviceVendorId(command);
 100     break;
 101   case CEC_OPCODE_DEVICE_VENDOR_ID:
 102     iHandled = HandleDeviceVendorId(command);
 103     break;
 104   case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 105     iHandled = HandleDeviceVendorCommandWithId(command);
 106     break;
 107   case CEC_OPCODE_GIVE_DECK_STATUS:
 108     iHandled = HandleGiveDeckStatus(command);
 109     break;
 110   case CEC_OPCODE_DECK_CONTROL:
 111     iHandled = HandleDeckControl(command);
 112     break;
 113   case CEC_OPCODE_MENU_REQUEST:
 114     iHandled = HandleMenuRequest(command);
 115     break;
 116   case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 117     iHandled = HandleGiveDevicePowerStatus(command);
 118     break;
 119   case CEC_OPCODE_GET_CEC_VERSION:
 120     iHandled = HandleGetCecVersion(command);
 121     break;
 122   case CEC_OPCODE_USER_CONTROL_PRESSED:
 123     iHandled = HandleUserControlPressed(command);
 124     break;
 125   case CEC_OPCODE_USER_CONTROL_RELEASE:
 126     iHandled = HandleUserControlRelease(command);
 127     break;
 128   case CEC_OPCODE_GIVE_AUDIO_STATUS:
 129     iHandled = HandleGiveAudioStatus(command);
 130     break;
 131   case CEC_OPCODE_GIVE_SYSTEM_AUDIO_MODE_STATUS:
 132     iHandled = HandleGiveSystemAudioModeStatus(command);
 133     break;
 134   case CEC_OPCODE_SYSTEM_AUDIO_MODE_REQUEST:
 135     iHandled = HandleSystemAudioModeRequest(command);
 136     break;
 137   case CEC_OPCODE_REPORT_AUDIO_STATUS:
 138     iHandled = HandleReportAudioStatus(command);
 139     break;
 140   case CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS:
 141     iHandled = HandleSystemAudioModeStatus(command);
 142     break;
 143   case CEC_OPCODE_SET_SYSTEM_AUDIO_MODE:
 144     iHandled = HandleSetSystemAudioMode(command);
 145     break;
 146   case CEC_OPCODE_REQUEST_ACTIVE_SOURCE:
 147     iHandled = HandleRequestActiveSource(command);
 148     break;
 149   case CEC_OPCODE_SET_STREAM_PATH:
 150     iHandled = HandleSetStreamPath(command);
 151     break;
 152   case CEC_OPCODE_ROUTING_CHANGE:
 153     iHandled = HandleRoutingChange(command);
 154     break;
 155   case CEC_OPCODE_ROUTING_INFORMATION:
 156     iHandled = HandleRoutingInformation(command);
 157     break;
 158   case CEC_OPCODE_STANDBY:
 159     iHandled = HandleStandby(command);
 160     break;
 161   case CEC_OPCODE_ACTIVE_SOURCE:
 162     iHandled = HandleActiveSource(command);
 163     break;
 164   case CEC_OPCODE_REPORT_PHYSICAL_ADDRESS:
 165     iHandled = HandleReportPhysicalAddress(command);
 166     break;
 167   case CEC_OPCODE_SET_OSD_NAME:
 168     iHandled = HandleSetOSDName(command);
 169     break;
 170   case CEC_OPCODE_IMAGE_VIEW_ON:
 171     iHandled = HandleImageViewOn(command);
 172     break;
 173   case CEC_OPCODE_TEXT_VIEW_ON:
 174     iHandled = HandleTextViewOn(command);
 175     break;
 176   case CEC_OPCODE_FEATURE_ABORT:
 177     iHandled = HandleFeatureAbort(command);
 178     break;
 179   case CEC_OPCODE_VENDOR_COMMAND:
 180     iHandled = HandleVendorCommand(command);
 181     break;
 182   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN:
 183     iHandled = HandleVendorRemoteButtonDown(command);
 184     break;
 185   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP:
 186     iHandled = HandleVendorRemoteButtonUp(command);
 187     break;
 188   case CEC_OPCODE_PLAY:
 189     // libCEC (currently) doesn't need to do anything with this, since player applications handle it
 190     // but it should not respond with a feature abort
 191     iHandled = COMMAND_HANDLED;
 192     break;
 193   default:
 194     break;
 195   }
 196
 197   if (iHandled == COMMAND_HANDLED)
 198     m_waitForResponse->Received((command.opcode == CEC_OPCODE_FEATURE_ABORT && command.parameters.size > 0) ? (cec_opcode)command.parameters[0] : command.opcode);
 199   else
 200     UnhandledCommand(command, (cec_abort_reason)iHandled);
 201
 202   return iHandled == COMMAND_HANDLED;
 203 }
 204
 205 int CCECCommandHandler::HandleActiveSource(const cec_command &command)
 206 {
 207   if (command.parameters.size == 2)
 208   {
 209     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 210     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iAddress);
 211     if (device)
 212     {
 213       device->MarkAsActiveSource();
 214       return COMMAND_HANDLED;
 215     }
 216   }
 217
 218   return CEC_ABORT_REASON_INVALID_OPERAND;
 219 }
 220
 221 int CCECCommandHandler::HandleDeckControl(const cec_command &command)
 222 {
 223   CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 224   if (device && command.parameters.size > 0)
 225   {
 226     device->SetDeckControlMode((cec_deck_control_mode) command.parameters[0]);
 227     return COMMAND_HANDLED;
 228   }
 229
 230   return CEC_ABORT_REASON_INVALID_OPERAND;
 231 }
 232
 233 int CCECCommandHandler::HandleDeviceCecVersion(const cec_command &command)
 234 {
 235   if (command.parameters.size == 1)
 236   {
 237     CCECBusDevice *device = GetDevice(command.initiator);
 238     if (device)
 239       device->SetCecVersion((cec_version) command.parameters[0]);
 240
 241     return COMMAND_HANDLED;
 242   }
 243
 244   return CEC_ABORT_REASON_INVALID_OPERAND;
 245 }
 246
 247 int CCECCommandHandler::HandleDeviceVendorCommandWithId(const cec_command & UNUSED(command))
 248 {
 249   return CEC_ABORT_REASON_INVALID_OPERAND;
 250 }
 251
 252 int CCECCommandHandler::HandleDeviceVendorId(const cec_command &command)
 253 {
 254   SetVendorId(command);
 255   return COMMAND_HANDLED;
 256 }
 257
 258 int CCECCommandHandler::HandleFeatureAbort(const cec_command &command)
 259 {
 260   if (command.parameters.size == 2 &&
 261         (command.parameters[1] == CEC_ABORT_REASON_UNRECOGNIZED_OPCODE ||
 262          command.parameters[1] == CEC_ABORT_REASON_REFUSED))
 263     m_processor->GetDevice(command.initiator)->SetUnsupportedFeature((cec_opcode)command.parameters[0]);
 264   return COMMAND_HANDLED;
 265 }
 266
 267 int CCECCommandHandler::HandleGetCecVersion(const cec_command &command)
 268 {
 269   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 270   {
 271     CCECBusDevice *device = GetDevice(command.destination);
 272     if (device && device->TransmitCECVersion(command.initiator))
 273       return COMMAND_HANDLED;
 274     return CEC_ABORT_REASON_INVALID_OPERAND;
 275   }
 276
 277   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 278 }
 279
 280 int CCECCommandHandler::HandleGiveAudioStatus(const cec_command &command)
 281 {
 282   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 283   {
 284     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 285     if (device && device->TransmitAudioStatus(command.initiator))
 286       return COMMAND_HANDLED;
 287     return CEC_ABORT_REASON_INVALID_OPERAND;
 288   }
 289
 290   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 291 }
 292
 293 int CCECCommandHandler::HandleGiveDeckStatus(const cec_command &command)
 294 {
 295   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 296   {
 297     CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 298     if (device && device->TransmitDeckStatus(command.initiator))
 299       return COMMAND_HANDLED;
 300     return CEC_ABORT_REASON_INVALID_OPERAND;
 301   }
 302
 303   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 304 }
 305
 306 int CCECCommandHandler::HandleGiveDevicePowerStatus(const cec_command &command)
 307 {
 308   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 309   {
 310     CCECBusDevice *device = GetDevice(command.destination);
 311     if (device && device->TransmitPowerState(command.initiator))
 312       return COMMAND_HANDLED;
 313     return CEC_ABORT_REASON_INVALID_OPERAND;
 314   }
 315
 316   return CEC_ABORT_REASON_INVALID_OPERAND;
 317 }
 318
 319 int CCECCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 320 {
 321   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 322   {
 323     CCECBusDevice *device = GetDevice(command.destination);
 324     if (device && device->TransmitVendorID(command.initiator))
 325       return COMMAND_HANDLED;
 326   }
 327
 328   return CEC_ABORT_REASON_INVALID_OPERAND;
 329 }
 330
 331 int CCECCommandHandler::HandleGiveOSDName(const cec_command &command)
 332 {
 333   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 334   {
 335     CCECBusDevice *device = GetDevice(command.destination);
 336     if (device && device->TransmitOSDName(command.initiator))
 337       return COMMAND_HANDLED;
 338   }
 339
 340   return CEC_ABORT_REASON_INVALID_OPERAND;
 341 }
 342
 343 int CCECCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 344 {
 345   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 346   {
 347     CCECBusDevice *device = GetDevice(command.destination);
 348     if (device && device->TransmitPhysicalAddress())
 349       return COMMAND_HANDLED;
 350     return CEC_ABORT_REASON_INVALID_OPERAND;
 351   }
 352
 353   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 354 }
 355
 356 int CCECCommandHandler::HandleGiveMenuLanguage(const cec_command &command)
 357 {
 358   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 359   {
 360     CCECBusDevice *device = GetDevice(command.destination);
 361     if (device && device->TransmitSetMenuLanguage(command.initiator))
 362       return COMMAND_HANDLED;
 363     return CEC_ABORT_REASON_INVALID_OPERAND;
 364   }
 365
 366   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 367 }
 368
 369 int CCECCommandHandler::HandleGiveSystemAudioModeStatus(const cec_command &command)
 370 {
 371   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 372   {
 373     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 374     if (device && device->TransmitSystemAudioModeStatus(command.initiator))
 375       return COMMAND_HANDLED;
 376     return CEC_ABORT_REASON_INVALID_OPERAND;
 377   }
 378
 379   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 380 }
 381
 382 int CCECCommandHandler::HandleImageViewOn(const cec_command &command)
 383 {
 384   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 385   return COMMAND_HANDLED;
 386 }
 387
 388 int CCECCommandHandler::HandleMenuRequest(const cec_command &command)
 389 {
 390   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 391   {
 392     CCECBusDevice *device = GetDevice(command.destination);
 393     if (device)
 394     {
 395       CCECClient *client = device->GetClient();
 396       if (client)
 397       {
 398         if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_ACTIVATE)
 399         {
 400           if (client->MenuStateChanged(CEC_MENU_STATE_ACTIVATED) == 1)
 401             device->SetMenuState(CEC_MENU_STATE_ACTIVATED);
 402         }
 403         else if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_DEACTIVATE)
 404         {
 405           if (client->MenuStateChanged(CEC_MENU_STATE_DEACTIVATED) == 1)
 406             device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 407         }
 408       }
 409       if (device->TransmitMenuState(command.initiator))
 410         return COMMAND_HANDLED;
 411     }
 412     return CEC_ABORT_REASON_INVALID_OPERAND;
 413   }
 414
 415   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 416 }
 417
 418 bool CCECCommandHandler::HandlePoll(const cec_command &command)
 419 {
 420   m_busDevice->HandlePoll(command.destination);
 421   return true;
 422 }
 423
 424 int CCECCommandHandler::HandleReportAudioStatus(const cec_command &command)
 425 {
 426   if (command.parameters.size == 1)
 427   {
 428     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 429     if (device)
 430     {
 431       device->SetAudioStatus(command.parameters[0]);
 432       return COMMAND_HANDLED;
 433     }
 434   }
 435   return CEC_ABORT_REASON_INVALID_OPERAND;
 436 }
 437
 438 int CCECCommandHandler::HandleReportPhysicalAddress(const cec_command &command)
 439 {
 440   if (command.parameters.size == 3)
 441   {
 442     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 443     SetPhysicalAddress(command.initiator, iNewAddress);
 444     return COMMAND_HANDLED;
 445   }
 446   return CEC_ABORT_REASON_INVALID_OPERAND;
 447 }
 448
 449 int CCECCommandHandler::HandleReportPowerStatus(const cec_command &command)
 450 {
 451   if (command.parameters.size == 1)
 452   {
 453     CCECBusDevice *device = GetDevice(command.initiator);
 454     if (device)
 455     {
 456       device->SetPowerStatus((cec_power_status) command.parameters[0]);
 457       return COMMAND_HANDLED;
 458     }
 459   }
 460   return CEC_ABORT_REASON_INVALID_OPERAND;
 461 }
 462
 463 int CCECCommandHandler::HandleRequestActiveSource(const cec_command &command)
 464 {
 465   if (m_processor->CECInitialised())
 466   {
 467     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %i requests active source", (uint8_t) command.initiator);
 468     m_processor->GetDevice(command.initiator)->SetPowerStatus(CEC_POWER_STATUS_ON);
 469
 470     vector<CCECBusDevice *> devices;
 471     for (size_t iDevicePtr = 0; iDevicePtr < GetMyDevices(devices); iDevicePtr++)
 472       devices[iDevicePtr]->TransmitActiveSource();
 473   }
 474
 475   return COMMAND_HANDLED;
 476 }
 477
 478 int CCECCommandHandler::HandleRoutingChange(const cec_command &command)
 479 {
 480   if (command.parameters.size == 4)
 481   {
 482     uint16_t iOldAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 483     uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 484
 485     CCECBusDevice *device = GetDevice(command.initiator);
 486     if (device)
 487     {
 488       device->SetStreamPath(iNewAddress, iOldAddress);
 489       return COMMAND_HANDLED;
 490     }
 491   }
 492
 493   return CEC_ABORT_REASON_INVALID_OPERAND;
 494 }
 495
 496 int CCECCommandHandler::HandleRoutingInformation(const cec_command &command)
 497 {
 498   if (command.parameters.size == 2)
 499   {
 500     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 501     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 502     if (device)
 503     {
 504       device->MarkAsActiveSource();
 505       return COMMAND_HANDLED;
 506     }
 507   }
 508
 509   return CEC_ABORT_REASON_INVALID_OPERAND;
 510 }
 511
 512 int CCECCommandHandler::HandleSetMenuLanguage(const cec_command &command)
 513 {
 514   if (command.parameters.size == 3)
 515   {
 516     CCECBusDevice *device = GetDevice(command.initiator);
 517     if (device)
 518     {
 519       cec_menu_language language;
 520       language.device = command.initiator;
 521       for (uint8_t iPtr = 0; iPtr < 4; iPtr++)
 522         language.language[iPtr] = command.parameters[iPtr];
 523       language.language[3] = 0;
 524       device->SetMenuLanguage(language);
 525       return COMMAND_HANDLED;
 526     }
 527   }
 528
 529   return CEC_ABORT_REASON_INVALID_OPERAND;
 530 }
 531
 532 int CCECCommandHandler::HandleSetOSDName(const cec_command &command)
 533 {
 534   if (command.parameters.size > 0)
 535   {
 536     CCECBusDevice *device = GetDevice(command.initiator);
 537     if (device)
 538     {
 539       char buf[1024];
 540       for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 541         buf[iPtr] = (char)command.parameters[iPtr];
 542       buf[command.parameters.size] = 0;
 543
 544       CStdString strName(buf);
 545       device->SetOSDName(strName);
 546
 547       return COMMAND_HANDLED;
 548     }
 549   }
 550
 551   return CEC_ABORT_REASON_INVALID_OPERAND;
 552 }
 553
 554 int CCECCommandHandler::HandleSetStreamPath(const cec_command &command)
 555 {
 556   if (!m_processor->CECInitialised())
 557     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 558
 559   if (command.parameters.size >= 2)
 560   {
 561     uint16_t iStreamAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 562     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %s (%x) sets stream path to physical address %04x", ToString(command.initiator), command.initiator, iStreamAddress);
 563
 564     // a device will only change the stream path when it's powered on
 565     m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
 566
 567     /* one of the device handled by libCEC has been made active */
 568     CCECBusDevice *device = GetDeviceByPhysicalAddress(iStreamAddress);
 569     if (device && device->IsHandledByLibCEC())
 570     {
 571       device->ActivateSource();
 572       return COMMAND_HANDLED;
 573     }
 574   }
 575
 576   return CEC_ABORT_REASON_INVALID_OPERAND;
 577 }
 578
 579 int CCECCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 580 {
 581   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 582   {
 583     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 584     if (device)
 585     {
 586       if (command.parameters.size >= 2)
 587       {
 588         device->SetPowerStatus(CEC_POWER_STATUS_ON);
 589         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_ON);
 590         uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 591         CCECBusDevice *newActiveDevice = GetDeviceByPhysicalAddress(iNewAddress);
 592         if (newActiveDevice)
 593           newActiveDevice->MarkAsActiveSource();
 594         if (device->TransmitSetSystemAudioMode(command.initiator))
 595           return COMMAND_HANDLED;
 596       }
 597       else
 598       {
 599         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_OFF);
 600         if (device->TransmitSetSystemAudioMode(command.initiator))
 601           return COMMAND_HANDLED;
 602       }
 603     }
 604   }
 605
 606   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 607 }
 608
 609 int CCECCommandHandler::HandleStandby(const cec_command &command)
 610 {
 611   CCECBusDevice *device = GetDevice(command.initiator);
 612   if (device)
 613     device->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 614
 615   return COMMAND_HANDLED;
 616 }
 617
 618 int CCECCommandHandler::HandleSystemAudioModeStatus(const cec_command &command)
 619 {
 620   if (command.parameters.size == 1)
 621   {
 622     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 623     if (device)
 624     {
 625       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 626       return COMMAND_HANDLED;
 627     }
 628   }
 629
 630   return CEC_ABORT_REASON_INVALID_OPERAND;
 631 }
 632
 633 int CCECCommandHandler::HandleSetSystemAudioMode(const cec_command &command)
 634 {
 635   if (command.parameters.size == 1)
 636   {
 637     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 638     if (device)
 639     {
 640       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 641       return COMMAND_HANDLED;
 642     }
 643   }
 644
 645   return CEC_ABORT_REASON_INVALID_OPERAND;
 646 }
 647
 648 int CCECCommandHandler::HandleTextViewOn(const cec_command &command)
 649 {
 650   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 651   return COMMAND_HANDLED;
 652 }
 653
 654 int CCECCommandHandler::HandleUserControlPressed(const cec_command &command)
 655 {
 656   if (!m_processor->CECInitialised() ||
 657       !m_processor->IsHandledByLibCEC(command.destination))
 658     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 659
 660   if (command.parameters.size == 0)
 661     return CEC_ABORT_REASON_INVALID_OPERAND;
 662
 663   CCECBusDevice *device = GetDevice(command.destination);
 664   if (!device)
 665     return CEC_ABORT_REASON_INVALID_OPERAND;
 666
 667   CCECClient *client = device->GetClient();
 668   if (client)
 669     client->AddKey();
 670
 671   if (command.parameters[0] <= CEC_USER_CONTROL_CODE_MAX)
 672     client->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 673
 674   if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 675       command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION)
 676   {
 677     bool bPowerOn(true);
 678
 679     // CEC_USER_CONTROL_CODE_POWER operates as a toggle
 680     // assume CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION does not
 681     if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER)
 682     {
 683       cec_power_status status = device->GetCurrentPowerStatus();
 684       bPowerOn = !(status == CEC_POWER_STATUS_ON || status == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 685     }
 686
 687     if (bPowerOn)
 688     {
 689       device->ActivateSource();
 690     }
 691     else
 692     {
 693       device->MarkAsInactiveSource();
 694       device->TransmitInactiveSource();
 695       device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 696     }
 697   }
 698
 699   return COMMAND_HANDLED;
 700 }
 701
 702 int CCECCommandHandler::HandleUserControlRelease(const cec_command &command)
 703 {
 704   if (!m_processor->CECInitialised() ||
 705       !m_processor->IsHandledByLibCEC(command.destination))
 706     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 707
 708   CCECClient *client = m_processor->GetClient(command.destination);
 709   if (client)
 710     client->AddKey();
 711
 712   return COMMAND_HANDLED;
 713 }
 714
 715 int CCECCommandHandler::HandleVendorCommand(const cec_command & UNUSED(command))
 716 {
 717   return CEC_ABORT_REASON_INVALID_OPERAND;
 718 }
 719
 720 void CCECCommandHandler::UnhandledCommand(const cec_command &command, const cec_abort_reason reason)
 721 {
 722   if (m_processor->IsHandledByLibCEC(command.destination))
 723   {
 724     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending abort with opcode %02x and reason '%s' to %s", command.opcode, ToString(reason), ToString(command.initiator));
 725     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, reason);
 726   }
 727 }
 728
 729 size_t CCECCommandHandler::GetMyDevices(vector<CCECBusDevice *> &devices) const
 730 {
 731   size_t iReturn(0);
 732
 733   cec_logical_addresses addresses = m_processor->GetLogicalAddresses();
 734   for (uint8_t iPtr = CECDEVICE_TV; iPtr < CECDEVICE_BROADCAST; iPtr++)
 735   {
 736     if (addresses[iPtr])
 737     {
 738       devices.push_back(GetDevice((cec_logical_address) iPtr));
 739       ++iReturn;
 740     }
 741   }
 742
 743   return iReturn;
 744 }
 745
 746 CCECBusDevice *CCECCommandHandler::GetDevice(cec_logical_address iLogicalAddress) const
 747 {
 748   return m_processor->GetDevice(iLogicalAddress);
 749 }
 750
 751 CCECBusDevice *CCECCommandHandler::GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const
 752 {
 753   return m_processor->GetDeviceByPhysicalAddress(iPhysicalAddress);
 754 }
 755
 756 bool CCECCommandHandler::SetVendorId(const cec_command &command)
 757 {
 758   bool bChanged(false);
 759   if (command.parameters.size < 3)
 760   {
 761     LIB_CEC->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 762     return bChanged;
 763   }
 764
 765   uint64_t iVendorId = ((uint64_t)command.parameters[0] << 16) +
 766                        ((uint64_t)command.parameters[1] << 8) +
 767                         (uint64_t)command.parameters[2];
 768
 769   CCECBusDevice *device = GetDevice((cec_logical_address) command.initiator);
 770   if (device)
 771     bChanged = device->SetVendorId(iVendorId);
 772   return bChanged;
 773 }
 774
 775 void CCECCommandHandler::SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress)
 776 {
 777   if (!m_processor->IsHandledByLibCEC(iAddress))
 778   {
 779     CCECBusDevice *otherDevice = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 780     CCECClient *client = otherDevice ? otherDevice->GetClient() : NULL;
 781
 782     CCECBusDevice *device = m_processor->GetDevice(iAddress);
 783     if (device)
 784       device->SetPhysicalAddress(iNewAddress);
 785     else
 786     {
 787       LIB_CEC->AddLog(CEC_LOG_DEBUG, "device with logical address %X not found", iAddress);
 788     }
 789
 790     /* another device reported the same physical address as ours */
 791     if (client)
 792       client->ResetPhysicalAddress();
 793   }
 794   else
 795   {
 796     LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignore physical address report for device %s (%X) because it's marked as handled by libCEC", ToString(iAddress), iAddress);
 797   }
 798 }
 799
 800 bool CCECCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 801 {
 802   if (iDestination == CECDEVICE_TV)
 803     return TransmitImageViewOn(iInitiator, iDestination);
 804
 805   return TransmitKeypress(iInitiator, iDestination, CEC_USER_CONTROL_CODE_POWER) &&
 806     TransmitKeyRelease(iInitiator, iDestination);
 807 }
 808
 809 bool CCECCommandHandler::TransmitImageViewOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 810 {
 811   cec_command command;
 812   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_IMAGE_VIEW_ON);
 813
 814   return Transmit(command);
 815 }
 816
 817 bool CCECCommandHandler::TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 818 {
 819   cec_command command;
 820   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_STANDBY);
 821
 822   return Transmit(command);
 823 }
 824
 825 bool CCECCommandHandler::TransmitRequestActiveSource(const cec_logical_address iInitiator, bool bWaitForResponse /* = true */)
 826 {
 827   cec_command command;
 828   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REQUEST_ACTIVE_SOURCE);
 829
 830   return Transmit(command, !bWaitForResponse);
 831 }
 832
 833 bool CCECCommandHandler::TransmitRequestCecVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 834 {
 835   cec_command command;
 836   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_CEC_VERSION);
 837
 838   return Transmit(command, !bWaitForResponse);
 839 }
 840
 841 bool CCECCommandHandler::TransmitRequestMenuLanguage(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 842 {
 843   cec_command command;
 844   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_MENU_LANGUAGE);
 845
 846   return Transmit(command, !bWaitForResponse);
 847 }
 848
 849 bool CCECCommandHandler::TransmitRequestOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 850 {
 851   cec_command command;
 852   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_OSD_NAME);
 853
 854   return Transmit(command, !bWaitForResponse);
 855 }
 856
 857 bool CCECCommandHandler::TransmitRequestPhysicalAddress(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 858 {
 859   cec_command command;
 860   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_PHYSICAL_ADDRESS);
 861
 862   return Transmit(command, !bWaitForResponse);
 863 }
 864
 865 bool CCECCommandHandler::TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 866 {
 867   cec_command command;
 868   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_POWER_STATUS);
 869
 870   return Transmit(command, !bWaitForResponse);
 871 }
 872
 873 bool CCECCommandHandler::TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 874 {
 875   cec_command command;
 876   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 877
 878   return Transmit(command, !bWaitForResponse);
 879 }
 880
 881 bool CCECCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 882 {
 883   cec_command command;
 884   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 885   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 886   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 887
 888   return Transmit(command);
 889 }
 890
 891 bool CCECCommandHandler::TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion)
 892 {
 893   cec_command command;
 894   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_CEC_VERSION);
 895   command.parameters.PushBack((uint8_t)cecVersion);
 896
 897   return Transmit(command);
 898 }
 899
 900 bool CCECCommandHandler::TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 901 {
 902   cec_command command;
 903   cec_command::Format(command, iInitiator, CECDEVICE_TV, CEC_OPCODE_INACTIVE_SOURCE);
 904   command.parameters.PushBack((iPhysicalAddress >> 8) & 0xFF);
 905   command.parameters.PushBack(iPhysicalAddress & 0xFF);
 906
 907   return Transmit(command);
 908 }
 909
 910 bool CCECCommandHandler::TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState)
 911 {
 912   cec_command command;
 913   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_MENU_STATUS);
 914   command.parameters.PushBack((uint8_t)menuState);
 915
 916   return Transmit(command);
 917 }
 918
 919 bool CCECCommandHandler::TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, CStdString strDeviceName)
 920 {
 921   cec_command command;
 922   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_NAME);
 923   for (size_t iPtr = 0; iPtr < strDeviceName.length(); iPtr++)
 924     command.parameters.PushBack(strDeviceName.at(iPtr));
 925
 926   return Transmit(command);
 927 }
 928
 929 bool CCECCommandHandler::TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage)
 930 {
 931   cec_command command;
 932   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_STRING);
 933   command.parameters.PushBack((uint8_t)duration);
 934
 935   size_t iLen = strlen(strMessage);
 936   if (iLen > 13) iLen = 13;
 937
 938   for (size_t iPtr = 0; iPtr < iLen; iPtr++)
 939     command.parameters.PushBack(strMessage[iPtr]);
 940
 941   return Transmit(command);
 942 }
 943
 944 bool CCECCommandHandler::TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type)
 945 {
 946   cec_command command;
 947   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 948   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 949   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 950   command.parameters.PushBack((uint8_t) (type));
 951
 952   return Transmit(command);
 953 }
 954
 955 bool CCECCommandHandler::TransmitSetMenuLanguage(const cec_logical_address iInitiator, const char lang[3])
 956 {
 957   cec_command command;
 958   command.Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_SET_MENU_LANGUAGE);
 959   command.parameters.PushBack((uint8_t) lang[0]);
 960   command.parameters.PushBack((uint8_t) lang[1]);
 961   command.parameters.PushBack((uint8_t) lang[2]);
 962
 963   return Transmit(command);
 964 }
 965
 966 bool CCECCommandHandler::TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 967 {
 968   cec_command command;
 969   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_NONE);
 970
 971   return Transmit(command);
 972 }
 973
 974 bool CCECCommandHandler::TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state)
 975 {
 976   cec_command command;
 977   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_POWER_STATUS);
 978   command.parameters.PushBack((uint8_t) state);
 979
 980   return Transmit(command);
 981 }
 982
 983 bool CCECCommandHandler::TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId)
 984 {
 985   cec_command command;
 986   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_DEVICE_VENDOR_ID);
 987
 988   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 16) & 0xFF));
 989   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 8) & 0xFF));
 990   command.parameters.PushBack((uint8_t) ((uint64_t)iVendorId & 0xFF));
 991
 992   return Transmit(command);
 993 }
 994
 995 bool CCECCommandHandler::TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state)
 996 {
 997   cec_command command;
 998   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_AUDIO_STATUS);
 999   command.parameters.PushBack(state);
1000
1001   return Transmit(command);
1002 }
1003
1004 bool CCECCommandHandler::TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state)
1005 {
1006   cec_command command;
1007   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_SYSTEM_AUDIO_MODE);
1008   command.parameters.PushBack((uint8_t)state);
1009
1010   return Transmit(command);
1011 }
1012
1013 bool CCECCommandHandler::TransmitSetStreamPath(uint16_t iStreamPath)
1014 {
1015   cec_command command;
1016   cec_command::Format(command, m_busDevice->GetLogicalAddress(), CECDEVICE_BROADCAST, CEC_OPCODE_SET_STREAM_PATH);
1017   command.parameters.PushBack((uint8_t) ((iStreamPath >> 8) & 0xFF));
1018   command.parameters.PushBack((uint8_t) (iStreamPath        & 0xFF));
1019
1020   return Transmit(command);
1021 }
1022
1023 bool CCECCommandHandler::TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state)
1024 {
1025   cec_command command;
1026   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
1027   command.parameters.PushBack((uint8_t)state);
1028
1029   return Transmit(command);
1030 }
1031
1032 bool CCECCommandHandler::TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state)
1033 {
1034   cec_command command;
1035   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_DECK_STATUS);
1036   command.PushBack((uint8_t)state);
1037
1038   return Transmit(command);
1039 }
1040
1041 bool CCECCommandHandler::TransmitKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
1042 {
1043   cec_command command;
1044   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_PRESSED);
1045   command.parameters.PushBack((uint8_t)key);
1046
1047   return Transmit(command, !bWait);
1048 }
1049
1050 bool CCECCommandHandler::TransmitKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWait /* = true */)
1051 {
1052   cec_command command;
1053   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_RELEASE);
1054
1055   return Transmit(command, !bWait);
1056 }
1057
1058 bool CCECCommandHandler::Transmit(cec_command &command, bool bSuppressWait /* = false */)
1059 {
1060   bool bReturn(false);
1061   cec_opcode expectedResponse(cec_command::GetResponseOpcode(command.opcode));
1062   bool bExpectResponse(expectedResponse != CEC_OPCODE_NONE && !bSuppressWait);
1063   command.transmit_timeout = m_iTransmitTimeout;
1064
1065   if (command.initiator == CECDEVICE_UNKNOWN)
1066   {
1067     LIB_CEC->AddLog(CEC_LOG_ERROR, "not transmitting a command without a valid initiator");
1068     return bReturn;
1069   }
1070
1071   {
1072     uint8_t iTries(0), iMaxTries(!command.opcode_set ? 1 : m_iTransmitRetries + 1);
1073     while (!bReturn && ++iTries <= iMaxTries && !m_busDevice->IsUnsupportedFeature(command.opcode))
1074     {
1075       if ((bReturn = m_processor->Transmit(command)) == true)
1076       {
1077         LIB_CEC->AddLog(CEC_LOG_DEBUG, "command transmitted");
1078         if (bExpectResponse)
1079         {
1080           bReturn = m_waitForResponse->Wait(expectedResponse);
1081           LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? "expected response received (%X: %s)" : "expected response not received (%X: %s)", (int)expectedResponse, ToString(expectedResponse));
1082         }
1083       }
1084     }
1085   }
1086
1087   return bReturn;
1088 }
1089
1090 bool CCECCommandHandler::ActivateSource(bool bTransmitDelayedCommandsOnly /* = false */)
1091 {
1092   if (m_busDevice->IsActiveSource() &&
1093       m_busDevice->IsHandledByLibCEC())
1094   {
1095     {
1096       CLockObject lock(m_mutex);
1097       // check if we need to send a delayed source switch
1098       if (bTransmitDelayedCommandsOnly)
1099       {
1100         if (m_iActiveSourcePending == 0 || GetTimeMs() < m_iActiveSourcePending)
1101           return false;
1102
1103         LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
1104       }
1105
1106       // clear previous pending active source command
1107       m_iActiveSourcePending = 0;
1108     }
1109
1110     // update the power state and menu state
1111     m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
1112     m_busDevice->SetMenuState(CEC_MENU_STATE_ACTIVATED); // TODO: LG
1113
1114     // power on the TV
1115     bool bActiveSourceFailed = !m_busDevice->TransmitImageViewOn();
1116
1117     // check if we're allowed to switch sources
1118     bool bSourceSwitchAllowed = SourceSwitchAllowed();
1119     if (!bSourceSwitchAllowed)
1120       LIB_CEC->AddLog(CEC_LOG_DEBUG, "source switch is currently not allowed by command handler");
1121
1122     // switch sources (if allowed)
1123     if (!bActiveSourceFailed && bSourceSwitchAllowed)
1124     {
1125       bActiveSourceFailed = !m_busDevice->TransmitActiveSource() ||
1126                             !m_busDevice->TransmitMenuState(CECDEVICE_TV);
1127
1128       // update the deck status for playback devices
1129       if (!bActiveSourceFailed)
1130       {
1131         CCECPlaybackDevice *playbackDevice = m_busDevice->AsPlaybackDevice();
1132         if (playbackDevice && SendDeckStatusUpdateOnActiveSource())
1133           bActiveSourceFailed = !playbackDevice->TransmitDeckStatus(CECDEVICE_TV);
1134       }
1135     }
1136
1137     // retry later
1138     if (bActiveSourceFailed || !bSourceSwitchAllowed)
1139     {
1140       LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
1141       CLockObject lock(m_mutex);
1142       m_iActiveSourcePending = GetTimeMs() + (int64_t)CEC_ACTIVE_SOURCE_SWITCH_RETRY_TIME_MS;
1143       return false;
1144     }
1145
1146     // mark the handler as initialised
1147     CLockObject lock(m_mutex);
1148     m_bHandlerInited = true;
1149   }
1150   return true;
1151 }
1152
1153 void CCECCommandHandler::SignalOpcode(cec_opcode opcode)
1154 {
1155   m_waitForResponse->Received(opcode);
1156 }