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 "env.h"
  34 #include "CECCommandHandler.h"
  35
  36 #include "lib/devices/CECBusDevice.h"
  37 #include "lib/devices/CECAudioSystem.h"
  38 #include "lib/devices/CECPlaybackDevice.h"
  39 #include "lib/CECClient.h"
  40 #include "lib/CECProcessor.h"
  41 #include "lib/LibCEC.h"
  42 #include "lib/CECTypeUtils.h"
  43 #include "lib/platform/util/util.h"
  44
  45 using namespace CEC;
  46 using namespace std;
  47 using namespace PLATFORM;
  48
  49 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  50 #define ToString(p) CCECTypeUtils::ToString(p)
  51
  52 CCECCommandHandler::CCECCommandHandler(CCECBusDevice *busDevice,
  53                                        int32_t iTransmitTimeout /* = CEC_DEFAULT_TRANSMIT_TIMEOUT */,
  54                                        int32_t iTransmitWait /* = CEC_DEFAULT_TRANSMIT_WAIT */,
  55                                        int8_t iTransmitRetries /* = CEC_DEFAULT_TRANSMIT_RETRIES */,
  56                                        int64_t iActiveSourcePending /* = 0 */) :
  57     m_busDevice(busDevice),
  58     m_processor(m_busDevice->GetProcessor()),
  59     m_iTransmitTimeout(iTransmitTimeout),
  60     m_iTransmitWait(iTransmitWait),
  61     m_iTransmitRetries(iTransmitRetries),
  62     m_bHandlerInited(false),
  63     m_bOPTSendDeckStatusUpdateOnActiveSource(false),
  64     m_vendorId(CEC_VENDOR_UNKNOWN),
  65     m_iActiveSourcePending(iActiveSourcePending)
  66 {
  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_busDevice->SignalOpcode((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, true))
 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, true))
 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, true))
 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, true))
 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, true, true))
 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, true))
 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(true))
 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, true))
 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, true))
 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   CCECBusDevice *device = GetDevice(command.destination);
 385   if (device && (device->GetCurrentStatus() == CEC_DEVICE_STATUS_PRESENT ||
 386       device->GetCurrentStatus() == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC))
 387   {
 388     if (device->GetCurrentPowerStatus() == CEC_POWER_STATUS_STANDBY ||
 389         device->GetCurrentPowerStatus() == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY)
 390       device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 391   }
 392   return COMMAND_HANDLED;
 393 }
 394
 395 int CCECCommandHandler::HandleMenuRequest(const cec_command &command)
 396 {
 397   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 398   {
 399     CCECBusDevice *device = GetDevice(command.destination);
 400     if (device)
 401     {
 402       CCECClient *client = device->GetClient();
 403       if (client)
 404       {
 405         if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_ACTIVATE)
 406         {
 407           if (client->MenuStateChanged(CEC_MENU_STATE_ACTIVATED) == 1)
 408             device->SetMenuState(CEC_MENU_STATE_ACTIVATED);
 409         }
 410         else if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_DEACTIVATE)
 411         {
 412           if (client->MenuStateChanged(CEC_MENU_STATE_DEACTIVATED) == 1)
 413             device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 414         }
 415       }
 416       if (device->TransmitMenuState(command.initiator, true))
 417         return COMMAND_HANDLED;
 418     }
 419     return CEC_ABORT_REASON_INVALID_OPERAND;
 420   }
 421
 422   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 423 }
 424
 425 bool CCECCommandHandler::HandlePoll(const cec_command &command)
 426 {
 427   m_busDevice->HandlePoll(command.destination);
 428   return true;
 429 }
 430
 431 int CCECCommandHandler::HandleReportAudioStatus(const cec_command &command)
 432 {
 433   if (command.parameters.size == 1)
 434   {
 435     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 436     if (device)
 437     {
 438       device->SetAudioStatus(command.parameters[0]);
 439       return COMMAND_HANDLED;
 440     }
 441   }
 442   return CEC_ABORT_REASON_INVALID_OPERAND;
 443 }
 444
 445 int CCECCommandHandler::HandleReportPhysicalAddress(const cec_command &command)
 446 {
 447   if (command.parameters.size == 3)
 448   {
 449     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 450     SetPhysicalAddress(command.initiator, iNewAddress);
 451     return COMMAND_HANDLED;
 452   }
 453   return CEC_ABORT_REASON_INVALID_OPERAND;
 454 }
 455
 456 int CCECCommandHandler::HandleReportPowerStatus(const cec_command &command)
 457 {
 458   if (command.parameters.size == 1)
 459   {
 460     CCECBusDevice *device = GetDevice(command.initiator);
 461     if (device)
 462     {
 463       device->SetPowerStatus((cec_power_status) command.parameters[0]);
 464       return COMMAND_HANDLED;
 465     }
 466   }
 467   return CEC_ABORT_REASON_INVALID_OPERAND;
 468 }
 469
 470 int CCECCommandHandler::HandleRequestActiveSource(const cec_command &command)
 471 {
 472   if (m_processor->CECInitialised())
 473   {
 474     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %i requests active source", (uint8_t) command.initiator);
 475     m_processor->GetDevice(command.initiator)->SetPowerStatus(CEC_POWER_STATUS_ON);
 476
 477     vector<CCECBusDevice *> devices;
 478     for (size_t iDevicePtr = 0; iDevicePtr < GetMyDevices(devices); iDevicePtr++)
 479       devices[iDevicePtr]->TransmitActiveSource(true);
 480   }
 481
 482   return COMMAND_HANDLED;
 483 }
 484
 485 int CCECCommandHandler::HandleRoutingChange(const cec_command &command)
 486 {
 487   if (command.parameters.size == 4)
 488   {
 489     uint16_t iOldAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 490     uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 491
 492     CCECBusDevice *device = GetDevice(command.initiator);
 493     if (device)
 494     {
 495       device->SetStreamPath(iNewAddress, iOldAddress);
 496       return COMMAND_HANDLED;
 497     }
 498   }
 499
 500   return CEC_ABORT_REASON_INVALID_OPERAND;
 501 }
 502
 503 int CCECCommandHandler::HandleRoutingInformation(const cec_command &command)
 504 {
 505   if (command.parameters.size == 2)
 506   {
 507     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 508     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 509     if (device)
 510     {
 511       device->MarkAsActiveSource();
 512       return COMMAND_HANDLED;
 513     }
 514   }
 515
 516   return CEC_ABORT_REASON_INVALID_OPERAND;
 517 }
 518
 519 int CCECCommandHandler::HandleSetMenuLanguage(const cec_command &command)
 520 {
 521   if (command.parameters.size == 3)
 522   {
 523     CCECBusDevice *device = GetDevice(command.initiator);
 524     if (device)
 525     {
 526       cec_menu_language language;
 527       language.device = command.initiator;
 528       for (uint8_t iPtr = 0; iPtr < 4; iPtr++)
 529         language.language[iPtr] = command.parameters[iPtr];
 530       language.language[3] = 0;
 531       device->SetMenuLanguage(language);
 532       return COMMAND_HANDLED;
 533     }
 534   }
 535
 536   return CEC_ABORT_REASON_INVALID_OPERAND;
 537 }
 538
 539 int CCECCommandHandler::HandleSetOSDName(const cec_command &command)
 540 {
 541   if (command.parameters.size > 0)
 542   {
 543     CCECBusDevice *device = GetDevice(command.initiator);
 544     if (device)
 545     {
 546       char buf[1024];
 547       for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 548         buf[iPtr] = (char)command.parameters[iPtr];
 549       buf[command.parameters.size] = 0;
 550
 551       CStdString strName(buf);
 552       device->SetOSDName(strName);
 553
 554       return COMMAND_HANDLED;
 555     }
 556   }
 557
 558   return CEC_ABORT_REASON_INVALID_OPERAND;
 559 }
 560
 561 int CCECCommandHandler::HandleSetStreamPath(const cec_command &command)
 562 {
 563   if (!m_processor->CECInitialised())
 564     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 565
 566   if (command.parameters.size >= 2)
 567   {
 568     uint16_t iStreamAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 569     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %s (%x) sets stream path to physical address %04x", ToString(command.initiator), command.initiator, iStreamAddress);
 570
 571     // a device will only change the stream path when it's powered on
 572     m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
 573
 574     /* one of the device handled by libCEC has been made active */
 575     CCECBusDevice *device = GetDeviceByPhysicalAddress(iStreamAddress);
 576     if (device && device->IsHandledByLibCEC())
 577     {
 578       device->ActivateSource();
 579       return COMMAND_HANDLED;
 580     }
 581   }
 582
 583   return CEC_ABORT_REASON_INVALID_OPERAND;
 584 }
 585
 586 int CCECCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 587 {
 588   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 589   {
 590     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 591     if (device)
 592     {
 593       if (command.parameters.size >= 2)
 594       {
 595         device->SetPowerStatus(CEC_POWER_STATUS_ON);
 596         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_ON);
 597         uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 598         CCECBusDevice *newActiveDevice = GetDeviceByPhysicalAddress(iNewAddress);
 599         if (newActiveDevice)
 600           newActiveDevice->MarkAsActiveSource();
 601         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 602           return COMMAND_HANDLED;
 603       }
 604       else
 605       {
 606         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_OFF);
 607         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 608           return COMMAND_HANDLED;
 609       }
 610     }
 611   }
 612
 613   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 614 }
 615
 616 int CCECCommandHandler::HandleStandby(const cec_command &command)
 617 {
 618   CCECBusDevice *device = GetDevice(command.initiator);
 619   if (device)
 620     device->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 621
 622   return COMMAND_HANDLED;
 623 }
 624
 625 int CCECCommandHandler::HandleSystemAudioModeStatus(const cec_command &command)
 626 {
 627   if (command.parameters.size == 1)
 628   {
 629     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 630     if (device)
 631     {
 632       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 633       return COMMAND_HANDLED;
 634     }
 635   }
 636
 637   return CEC_ABORT_REASON_INVALID_OPERAND;
 638 }
 639
 640 int CCECCommandHandler::HandleSetSystemAudioMode(const cec_command &command)
 641 {
 642   if (command.parameters.size == 1)
 643   {
 644     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 645     if (device)
 646     {
 647       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 648       return COMMAND_HANDLED;
 649     }
 650   }
 651
 652   return CEC_ABORT_REASON_INVALID_OPERAND;
 653 }
 654
 655 int CCECCommandHandler::HandleTextViewOn(const cec_command &command)
 656 {
 657   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 658   return COMMAND_HANDLED;
 659 }
 660
 661 int CCECCommandHandler::HandleUserControlPressed(const cec_command &command)
 662 {
 663   if (!m_processor->CECInitialised() ||
 664       !m_processor->IsHandledByLibCEC(command.destination))
 665     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 666
 667   if (command.parameters.size == 0)
 668     return CEC_ABORT_REASON_INVALID_OPERAND;
 669
 670   CCECBusDevice *device = GetDevice(command.destination);
 671   if (!device)
 672     return CEC_ABORT_REASON_INVALID_OPERAND;
 673
 674   CCECClient *client = device->GetClient();
 675   if (client)
 676     client->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 677
 678   if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 679       command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION)
 680   {
 681     bool bPowerOn(true);
 682
 683     // CEC_USER_CONTROL_CODE_POWER operates as a toggle
 684     // assume CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION does not
 685     if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER)
 686     {
 687       cec_power_status status = device->GetCurrentPowerStatus();
 688       bPowerOn = !(status == CEC_POWER_STATUS_ON || status == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 689     }
 690
 691     if (bPowerOn)
 692     {
 693       device->ActivateSource();
 694     }
 695     else
 696     {
 697       device->MarkAsInactiveSource();
 698       device->TransmitInactiveSource();
 699       device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 700     }
 701   }
 702
 703   return COMMAND_HANDLED;
 704 }
 705
 706 int CCECCommandHandler::HandleUserControlRelease(const cec_command &command)
 707 {
 708   if (!m_processor->CECInitialised() ||
 709       !m_processor->IsHandledByLibCEC(command.destination))
 710     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 711
 712   CCECClient *client = m_processor->GetClient(command.destination);
 713   if (client)
 714     client->AddKey();
 715
 716   return COMMAND_HANDLED;
 717 }
 718
 719 int CCECCommandHandler::HandleVendorCommand(const cec_command & UNUSED(command))
 720 {
 721   return CEC_ABORT_REASON_INVALID_OPERAND;
 722 }
 723
 724 void CCECCommandHandler::UnhandledCommand(const cec_command &command, const cec_abort_reason reason)
 725 {
 726   if (m_processor->IsHandledByLibCEC(command.destination))
 727   {
 728     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending abort with opcode %02x and reason '%s' to %s", command.opcode, ToString(reason), ToString(command.initiator));
 729     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, reason);
 730   }
 731 }
 732
 733 size_t CCECCommandHandler::GetMyDevices(vector<CCECBusDevice *> &devices) const
 734 {
 735   size_t iReturn(0);
 736
 737   cec_logical_addresses addresses = m_processor->GetLogicalAddresses();
 738   for (uint8_t iPtr = CECDEVICE_TV; iPtr < CECDEVICE_BROADCAST; iPtr++)
 739   {
 740     if (addresses[iPtr])
 741     {
 742       devices.push_back(GetDevice((cec_logical_address) iPtr));
 743       ++iReturn;
 744     }
 745   }
 746
 747   return iReturn;
 748 }
 749
 750 CCECBusDevice *CCECCommandHandler::GetDevice(cec_logical_address iLogicalAddress) const
 751 {
 752   return m_processor->GetDevice(iLogicalAddress);
 753 }
 754
 755 CCECBusDevice *CCECCommandHandler::GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const
 756 {
 757   return m_processor->GetDeviceByPhysicalAddress(iPhysicalAddress);
 758 }
 759
 760 bool CCECCommandHandler::SetVendorId(const cec_command &command)
 761 {
 762   bool bChanged(false);
 763   if (command.parameters.size < 3)
 764   {
 765     LIB_CEC->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 766     return bChanged;
 767   }
 768
 769   uint64_t iVendorId = ((uint64_t)command.parameters[0] << 16) +
 770                        ((uint64_t)command.parameters[1] << 8) +
 771                         (uint64_t)command.parameters[2];
 772
 773   CCECBusDevice *device = GetDevice((cec_logical_address) command.initiator);
 774   if (device)
 775     bChanged = device->SetVendorId(iVendorId);
 776   return bChanged;
 777 }
 778
 779 void CCECCommandHandler::SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress)
 780 {
 781   if (!m_processor->IsHandledByLibCEC(iAddress))
 782   {
 783     CCECBusDevice *otherDevice = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 784     CCECClient *client = otherDevice ? otherDevice->GetClient() : NULL;
 785
 786     CCECBusDevice *device = m_processor->GetDevice(iAddress);
 787     if (device)
 788       device->SetPhysicalAddress(iNewAddress);
 789     else
 790     {
 791       LIB_CEC->AddLog(CEC_LOG_DEBUG, "device with logical address %X not found", iAddress);
 792     }
 793
 794     /* another device reported the same physical address as ours */
 795     if (client)
 796       client->ResetPhysicalAddress();
 797   }
 798   else
 799   {
 800     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);
 801   }
 802 }
 803
 804 bool CCECCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 805 {
 806   if (iDestination == CECDEVICE_TV)
 807     return TransmitImageViewOn(iInitiator, iDestination);
 808
 809   return TransmitKeypress(iInitiator, iDestination, CEC_USER_CONTROL_CODE_POWER) &&
 810     TransmitKeyRelease(iInitiator, iDestination);
 811 }
 812
 813 bool CCECCommandHandler::TransmitImageViewOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 814 {
 815   cec_command command;
 816   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_IMAGE_VIEW_ON);
 817
 818   return Transmit(command, false, false);
 819 }
 820
 821 bool CCECCommandHandler::TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 822 {
 823   cec_command command;
 824   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_STANDBY);
 825
 826   return Transmit(command, false, false);
 827 }
 828
 829 bool CCECCommandHandler::TransmitRequestActiveSource(const cec_logical_address iInitiator, bool bWaitForResponse /* = true */)
 830 {
 831   cec_command command;
 832   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REQUEST_ACTIVE_SOURCE);
 833
 834   return Transmit(command, !bWaitForResponse, false);
 835 }
 836
 837 bool CCECCommandHandler::TransmitRequestCecVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 838 {
 839   cec_command command;
 840   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_CEC_VERSION);
 841
 842   return Transmit(command, !bWaitForResponse, false);
 843 }
 844
 845 bool CCECCommandHandler::TransmitRequestMenuLanguage(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 846 {
 847   cec_command command;
 848   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_MENU_LANGUAGE);
 849
 850   return Transmit(command, !bWaitForResponse, false);
 851 }
 852
 853 bool CCECCommandHandler::TransmitRequestOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 854 {
 855   cec_command command;
 856   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_OSD_NAME);
 857
 858   return Transmit(command, !bWaitForResponse, false);
 859 }
 860
 861 bool CCECCommandHandler::TransmitRequestPhysicalAddress(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 862 {
 863   cec_command command;
 864   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_PHYSICAL_ADDRESS);
 865
 866   return Transmit(command, !bWaitForResponse, false);
 867 }
 868
 869 bool CCECCommandHandler::TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 870 {
 871   cec_command command;
 872   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_POWER_STATUS);
 873
 874   return Transmit(command, !bWaitForResponse, false);
 875 }
 876
 877 bool CCECCommandHandler::TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 878 {
 879   cec_command command;
 880   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 881
 882   return Transmit(command, !bWaitForResponse, false);
 883 }
 884
 885 bool CCECCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, bool bIsReply)
 886 {
 887   cec_command command;
 888   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 889   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 890   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 891
 892   return Transmit(command, false, bIsReply);
 893 }
 894
 895 bool CCECCommandHandler::TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion, bool bIsReply)
 896 {
 897   cec_command command;
 898   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_CEC_VERSION);
 899   command.parameters.PushBack((uint8_t)cecVersion);
 900
 901   return Transmit(command, false, bIsReply);
 902 }
 903
 904 bool CCECCommandHandler::TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 905 {
 906   cec_command command;
 907   cec_command::Format(command, iInitiator, CECDEVICE_TV, CEC_OPCODE_INACTIVE_SOURCE);
 908   command.parameters.PushBack((iPhysicalAddress >> 8) & 0xFF);
 909   command.parameters.PushBack(iPhysicalAddress & 0xFF);
 910
 911   return Transmit(command, false, false);
 912 }
 913
 914 bool CCECCommandHandler::TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState, bool bIsReply)
 915 {
 916   cec_command command;
 917   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_MENU_STATUS);
 918   command.parameters.PushBack((uint8_t)menuState);
 919
 920   return Transmit(command, false, bIsReply);
 921 }
 922
 923 bool CCECCommandHandler::TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, std::string strDeviceName, bool bIsReply)
 924 {
 925   cec_command command;
 926   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_NAME);
 927   for (size_t iPtr = 0; iPtr < strDeviceName.length(); iPtr++)
 928     command.parameters.PushBack(strDeviceName.at(iPtr));
 929
 930   return Transmit(command, false, bIsReply);
 931 }
 932
 933 bool CCECCommandHandler::TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage, bool bIsReply)
 934 {
 935   cec_command command;
 936   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_STRING);
 937   command.parameters.PushBack((uint8_t)duration);
 938
 939   size_t iLen = strlen(strMessage);
 940   if (iLen > 13) iLen = 13;
 941
 942   for (size_t iPtr = 0; iPtr < iLen; iPtr++)
 943     command.parameters.PushBack(strMessage[iPtr]);
 944
 945   return Transmit(command, false, bIsReply);
 946 }
 947
 948 bool CCECCommandHandler::TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type, bool bIsReply)
 949 {
 950   cec_command command;
 951   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 952   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 953   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 954   command.parameters.PushBack((uint8_t) (type));
 955
 956   return Transmit(command, false, bIsReply);
 957 }
 958
 959 bool CCECCommandHandler::TransmitSetMenuLanguage(const cec_logical_address iInitiator, const char lang[3], bool bIsReply)
 960 {
 961   cec_command command;
 962   command.Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_SET_MENU_LANGUAGE);
 963   command.parameters.PushBack((uint8_t) lang[0]);
 964   command.parameters.PushBack((uint8_t) lang[1]);
 965   command.parameters.PushBack((uint8_t) lang[2]);
 966
 967   return Transmit(command, false, bIsReply);
 968 }
 969
 970 bool CCECCommandHandler::TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bIsReply)
 971 {
 972   cec_command command;
 973   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_NONE);
 974
 975   return Transmit(command, false, bIsReply);
 976 }
 977
 978 bool CCECCommandHandler::TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state, bool bIsReply)
 979 {
 980   cec_command command;
 981   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_POWER_STATUS);
 982   command.parameters.PushBack((uint8_t) state);
 983
 984   return Transmit(command, false, bIsReply);
 985 }
 986
 987 bool CCECCommandHandler::TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId, bool bIsReply)
 988 {
 989   cec_command command;
 990   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_DEVICE_VENDOR_ID);
 991
 992   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 16) & 0xFF));
 993   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 8) & 0xFF));
 994   command.parameters.PushBack((uint8_t) ((uint64_t)iVendorId & 0xFF));
 995
 996   return Transmit(command, false, bIsReply);
 997 }
 998
 999 bool CCECCommandHandler::TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state, bool bIsReply)
1000 {
1001   cec_command command;
1002   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_AUDIO_STATUS);
1003   command.parameters.PushBack(state);
1004
1005   return Transmit(command, false, bIsReply);
1006 }
1007
1008 bool CCECCommandHandler::TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1009 {
1010   cec_command command;
1011   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_SYSTEM_AUDIO_MODE);
1012   command.parameters.PushBack((uint8_t)state);
1013
1014   return Transmit(command, false, bIsReply);
1015 }
1016
1017 bool CCECCommandHandler::TransmitSetStreamPath(uint16_t iStreamPath, bool bIsReply)
1018 {
1019   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
1020   {
1021     LIB_CEC->AddLog(CEC_LOG_ERROR, "only the TV is allowed to send CEC_OPCODE_SET_STREAM_PATH");
1022     return false;
1023   }
1024   cec_command command;
1025   cec_command::Format(command, m_busDevice->GetLogicalAddress(), CECDEVICE_BROADCAST, CEC_OPCODE_SET_STREAM_PATH);
1026   command.parameters.PushBack((uint8_t) ((iStreamPath >> 8) & 0xFF));
1027   command.parameters.PushBack((uint8_t) (iStreamPath        & 0xFF));
1028
1029   return Transmit(command, false, bIsReply);
1030 }
1031
1032 bool CCECCommandHandler::TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1033 {
1034   cec_command command;
1035   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
1036   command.parameters.PushBack((uint8_t)state);
1037
1038   return Transmit(command, false, bIsReply);
1039 }
1040
1041 bool CCECCommandHandler::TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state, bool bIsReply)
1042 {
1043   cec_command command;
1044   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_DECK_STATUS);
1045   command.PushBack((uint8_t)state);
1046
1047   return Transmit(command, false, bIsReply);
1048 }
1049
1050 bool CCECCommandHandler::TransmitKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
1051 {
1052   cec_command command;
1053   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_PRESSED);
1054   command.parameters.PushBack((uint8_t)key);
1055
1056   return Transmit(command, !bWait, false);
1057 }
1058
1059 bool CCECCommandHandler::TransmitKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWait /* = true */)
1060 {
1061   cec_command command;
1062   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_RELEASE);
1063
1064   return Transmit(command, !bWait, false);
1065 }
1066
1067 bool CCECCommandHandler::Transmit(cec_command &command, bool bSuppressWait, bool bIsReply)
1068 {
1069   bool bReturn(false);
1070   cec_opcode expectedResponse(cec_command::GetResponseOpcode(command.opcode));
1071   bool bExpectResponse(expectedResponse != CEC_OPCODE_NONE && !bSuppressWait);
1072   command.transmit_timeout = m_iTransmitTimeout;
1073
1074   if (command.initiator == CECDEVICE_UNKNOWN)
1075   {
1076     LIB_CEC->AddLog(CEC_LOG_ERROR, "not transmitting a command without a valid initiator");
1077     return bReturn;
1078   }
1079
1080   // check whether the destination is not marked as not present or handled by libCEC
1081   if (command.destination != CECDEVICE_BROADCAST && command.opcode_set)
1082   {
1083     CCECBusDevice* destinationDevice = m_processor->GetDevice(command.destination);
1084     cec_bus_device_status status = destinationDevice ? destinationDevice->GetStatus() : CEC_DEVICE_STATUS_NOT_PRESENT;
1085     if (status == CEC_DEVICE_STATUS_NOT_PRESENT)
1086     {
1087       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as not present", ToString(command.opcode),ToString(command.destination));
1088       return bReturn;
1089     }
1090     else if (status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
1091     {
1092       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as handled by libCEC", ToString(command.opcode),ToString(command.destination));
1093       return bReturn;
1094     }
1095   }
1096
1097   {
1098     uint8_t iTries(0), iMaxTries(!command.opcode_set ? 1 : m_iTransmitRetries + 1);
1099     while (!bReturn && ++iTries <= iMaxTries && !m_busDevice->IsUnsupportedFeature(command.opcode))
1100     {
1101       if ((bReturn = m_processor->Transmit(command, bIsReply)) == true)
1102       {
1103         LIB_CEC->AddLog(CEC_LOG_DEBUG, "command transmitted");
1104         if (bExpectResponse)
1105         {
1106           bReturn = m_busDevice->WaitForOpcode(expectedResponse);
1107           LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? "expected response received (%X: %s)" : "expected response not received (%X: %s)", (int)expectedResponse, ToString(expectedResponse));
1108         }
1109       }
1110     }
1111   }
1112
1113   return bReturn;
1114 }
1115
1116 bool CCECCommandHandler::ActivateSource(bool bTransmitDelayedCommandsOnly /* = false */)
1117 {
1118   if (m_busDevice->IsActiveSource() &&
1119       m_busDevice->IsHandledByLibCEC())
1120   {
1121     {
1122       CLockObject lock(m_mutex);
1123       // check if we need to send a delayed source switch
1124       if (bTransmitDelayedCommandsOnly)
1125       {
1126         if (m_iActiveSourcePending == 0 || GetTimeMs() < m_iActiveSourcePending)
1127           return false;
1128
1129         LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
1130       }
1131     }
1132
1133     // update the power state and menu state
1134     if (!bTransmitDelayedCommandsOnly)
1135     {
1136       m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
1137       m_busDevice->SetMenuState(CEC_MENU_STATE_ACTIVATED);
1138     }
1139
1140     // vendor specific hook
1141     VendorPreActivateSourceHook();
1142
1143     // power on the TV
1144     CCECBusDevice* tv = m_processor->GetDevice(CECDEVICE_TV);
1145     bool bTvPresent = (tv && tv->GetStatus() == CEC_DEVICE_STATUS_PRESENT);
1146     bool bActiveSourceFailed(false);
1147     if (bTvPresent)
1148     {
1149       if (tv->GetCurrentPowerStatus() != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
1150         bActiveSourceFailed = !m_busDevice->TransmitImageViewOn();
1151     }
1152     else
1153       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV not present, not sending 'image view on'");
1154
1155     // check if we're allowed to switch sources
1156     bool bSourceSwitchAllowed = SourceSwitchAllowed();
1157     if (!bSourceSwitchAllowed)
1158       LIB_CEC->AddLog(CEC_LOG_DEBUG, "source switch is currently not allowed by command handler");
1159
1160     // switch sources (if allowed)
1161     if (!bActiveSourceFailed && bSourceSwitchAllowed)
1162     {
1163       bActiveSourceFailed = !m_busDevice->TransmitActiveSource(false);
1164       if (bTvPresent && !bActiveSourceFailed)
1165         bActiveSourceFailed = !m_busDevice->TransmitMenuState(CECDEVICE_TV, false);
1166
1167       // update the deck status for playback devices
1168       if (bTvPresent && !bActiveSourceFailed)
1169       {
1170         CCECPlaybackDevice *playbackDevice = m_busDevice->AsPlaybackDevice();
1171         if (playbackDevice && SendDeckStatusUpdateOnActiveSource())
1172           bActiveSourceFailed = !playbackDevice->TransmitDeckStatus(CECDEVICE_TV, false);
1173       }
1174     }
1175
1176     // retry later
1177     if (bActiveSourceFailed || !bSourceSwitchAllowed)
1178     {
1179       LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
1180       int64_t now(GetTimeMs());
1181       CLockObject lock(m_mutex);
1182       if (m_iActiveSourcePending == 0 || m_iActiveSourcePending < now)
1183         m_iActiveSourcePending = now + (int64_t)CEC_ACTIVE_SOURCE_SWITCH_RETRY_TIME_MS;
1184       return false;
1185     }
1186     else
1187     {
1188       CLockObject lock(m_mutex);
1189       // clear previous pending active source command
1190       m_iActiveSourcePending = 0;
1191     }
1192
1193     // mark the handler as initialised
1194     CLockObject lock(m_mutex);
1195     m_bHandlerInited = true;
1196   }
1197   return true;
1198 }
1199
1200 void CCECCommandHandler::ScheduleActivateSource(uint64_t iDelay)
1201 {
1202   CLockObject lock(m_mutex);
1203   m_iActiveSourcePending = GetTimeMs() + iDelay;
1204 }