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 #define REQUEST_POWER_STATUS_TIMEOUT 5000
  52
  53 CCECCommandHandler::CCECCommandHandler(CCECBusDevice *busDevice,
  54                                        int32_t iTransmitTimeout /* = CEC_DEFAULT_TRANSMIT_TIMEOUT */,
  55                                        int32_t iTransmitWait /* = CEC_DEFAULT_TRANSMIT_WAIT */,
  56                                        int8_t iTransmitRetries /* = CEC_DEFAULT_TRANSMIT_RETRIES */,
  57                                        int64_t iActiveSourcePending /* = 0 */) :
  58     m_busDevice(busDevice),
  59     m_processor(m_busDevice->GetProcessor()),
  60     m_iTransmitTimeout(iTransmitTimeout),
  61     m_iTransmitWait(iTransmitWait),
  62     m_iTransmitRetries(iTransmitRetries),
  63     m_bHandlerInited(false),
  64     m_bOPTSendDeckStatusUpdateOnActiveSource(false),
  65     m_vendorId(CEC_VENDOR_UNKNOWN),
  66     m_iActiveSourcePending(iActiveSourcePending),
  67     m_iPowerStatusRequested(0)
  68 {
  69 }
  70
  71 bool CCECCommandHandler::HandleCommand(const cec_command &command)
  72 {
  73   if (command.opcode_set == 0)
  74     return HandlePoll(command);
  75
  76   int iHandled(CEC_ABORT_REASON_UNRECOGNIZED_OPCODE);
  77
  78   LIB_CEC->AddCommand(command);
  79
  80   switch(command.opcode)
  81   {
  82   case CEC_OPCODE_REPORT_POWER_STATUS:
  83     iHandled = HandleReportPowerStatus(command);
  84     break;
  85   case CEC_OPCODE_CEC_VERSION:
  86     iHandled = HandleDeviceCecVersion(command);
  87     break;
  88   case CEC_OPCODE_SET_MENU_LANGUAGE:
  89     iHandled = HandleSetMenuLanguage(command);
  90     break;
  91   case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
  92     iHandled = HandleGivePhysicalAddress(command);
  93     break;
  94   case CEC_OPCODE_GET_MENU_LANGUAGE:
  95     iHandled = HandleGiveMenuLanguage(command);
  96     break;
  97   case CEC_OPCODE_GIVE_OSD_NAME:
  98     iHandled = HandleGiveOSDName(command);
  99     break;
 100   case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
 101     iHandled = HandleGiveDeviceVendorId(command);
 102     break;
 103   case CEC_OPCODE_DEVICE_VENDOR_ID:
 104     iHandled = HandleDeviceVendorId(command);
 105     break;
 106   case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 107     iHandled = HandleDeviceVendorCommandWithId(command);
 108     break;
 109   case CEC_OPCODE_GIVE_DECK_STATUS:
 110     iHandled = HandleGiveDeckStatus(command);
 111     break;
 112   case CEC_OPCODE_DECK_CONTROL:
 113     iHandled = HandleDeckControl(command);
 114     break;
 115   case CEC_OPCODE_MENU_REQUEST:
 116     iHandled = HandleMenuRequest(command);
 117     break;
 118   case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 119     iHandled = HandleGiveDevicePowerStatus(command);
 120     break;
 121   case CEC_OPCODE_GET_CEC_VERSION:
 122     iHandled = HandleGetCecVersion(command);
 123     break;
 124   case CEC_OPCODE_USER_CONTROL_PRESSED:
 125     iHandled = HandleUserControlPressed(command);
 126     break;
 127   case CEC_OPCODE_USER_CONTROL_RELEASE:
 128     iHandled = HandleUserControlRelease(command);
 129     break;
 130   case CEC_OPCODE_GIVE_AUDIO_STATUS:
 131     iHandled = HandleGiveAudioStatus(command);
 132     break;
 133   case CEC_OPCODE_GIVE_SYSTEM_AUDIO_MODE_STATUS:
 134     iHandled = HandleGiveSystemAudioModeStatus(command);
 135     break;
 136   case CEC_OPCODE_SYSTEM_AUDIO_MODE_REQUEST:
 137     iHandled = HandleSystemAudioModeRequest(command);
 138     break;
 139   case CEC_OPCODE_REPORT_AUDIO_STATUS:
 140     iHandled = HandleReportAudioStatus(command);
 141     break;
 142   case CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS:
 143     iHandled = HandleSystemAudioModeStatus(command);
 144     break;
 145   case CEC_OPCODE_SET_SYSTEM_AUDIO_MODE:
 146     iHandled = HandleSetSystemAudioMode(command);
 147     break;
 148   case CEC_OPCODE_REQUEST_ACTIVE_SOURCE:
 149     iHandled = HandleRequestActiveSource(command);
 150     break;
 151   case CEC_OPCODE_SET_STREAM_PATH:
 152     iHandled = HandleSetStreamPath(command);
 153     break;
 154   case CEC_OPCODE_ROUTING_CHANGE:
 155     iHandled = HandleRoutingChange(command);
 156     break;
 157   case CEC_OPCODE_ROUTING_INFORMATION:
 158     iHandled = HandleRoutingInformation(command);
 159     break;
 160   case CEC_OPCODE_STANDBY:
 161     iHandled = HandleStandby(command);
 162     break;
 163   case CEC_OPCODE_ACTIVE_SOURCE:
 164     iHandled = HandleActiveSource(command);
 165     break;
 166   case CEC_OPCODE_REPORT_PHYSICAL_ADDRESS:
 167     iHandled = HandleReportPhysicalAddress(command);
 168     break;
 169   case CEC_OPCODE_SET_OSD_NAME:
 170     iHandled = HandleSetOSDName(command);
 171     break;
 172   case CEC_OPCODE_IMAGE_VIEW_ON:
 173     iHandled = HandleImageViewOn(command);
 174     break;
 175   case CEC_OPCODE_TEXT_VIEW_ON:
 176     iHandled = HandleTextViewOn(command);
 177     break;
 178   case CEC_OPCODE_FEATURE_ABORT:
 179     iHandled = HandleFeatureAbort(command);
 180     break;
 181   case CEC_OPCODE_VENDOR_COMMAND:
 182     iHandled = HandleVendorCommand(command);
 183     break;
 184   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN:
 185     iHandled = HandleVendorRemoteButtonDown(command);
 186     break;
 187   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP:
 188     iHandled = HandleVendorRemoteButtonUp(command);
 189     break;
 190   case CEC_OPCODE_PLAY:
 191     // libCEC (currently) doesn't need to do anything with this, since player applications handle it
 192     // but it should not respond with a feature abort
 193     iHandled = COMMAND_HANDLED;
 194     break;
 195   default:
 196     break;
 197   }
 198
 199   if (iHandled == COMMAND_HANDLED)
 200     m_busDevice->SignalOpcode((command.opcode == CEC_OPCODE_FEATURE_ABORT && command.parameters.size > 0) ? (cec_opcode)command.parameters[0] : command.opcode);
 201   else
 202     UnhandledCommand(command, (cec_abort_reason)iHandled);
 203
 204   return iHandled == COMMAND_HANDLED;
 205 }
 206
 207 int CCECCommandHandler::HandleActiveSource(const cec_command &command)
 208 {
 209   if (command.parameters.size == 2)
 210   {
 211     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 212     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iAddress);
 213     if (device)
 214     {
 215       device->MarkAsActiveSource();
 216       return COMMAND_HANDLED;
 217     }
 218   }
 219
 220   return CEC_ABORT_REASON_INVALID_OPERAND;
 221 }
 222
 223 int CCECCommandHandler::HandleDeckControl(const cec_command &command)
 224 {
 225   CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 226   if (device && command.parameters.size > 0)
 227   {
 228     device->SetDeckControlMode((cec_deck_control_mode) command.parameters[0]);
 229     return COMMAND_HANDLED;
 230   }
 231
 232   return CEC_ABORT_REASON_INVALID_OPERAND;
 233 }
 234
 235 int CCECCommandHandler::HandleDeviceCecVersion(const cec_command &command)
 236 {
 237   if (command.parameters.size == 1)
 238   {
 239     CCECBusDevice *device = GetDevice(command.initiator);
 240     if (device)
 241       device->SetCecVersion((cec_version) command.parameters[0]);
 242
 243     return COMMAND_HANDLED;
 244   }
 245
 246   return CEC_ABORT_REASON_INVALID_OPERAND;
 247 }
 248
 249 int CCECCommandHandler::HandleDeviceVendorCommandWithId(const cec_command & UNUSED(command))
 250 {
 251   return CEC_ABORT_REASON_INVALID_OPERAND;
 252 }
 253
 254 int CCECCommandHandler::HandleDeviceVendorId(const cec_command &command)
 255 {
 256   SetVendorId(command);
 257   return COMMAND_HANDLED;
 258 }
 259
 260 int CCECCommandHandler::HandleFeatureAbort(const cec_command &command)
 261 {
 262   if (command.parameters.size == 2 &&
 263         (command.parameters[1] == CEC_ABORT_REASON_UNRECOGNIZED_OPCODE ||
 264          command.parameters[1] == CEC_ABORT_REASON_REFUSED))
 265     m_processor->GetDevice(command.initiator)->SetUnsupportedFeature((cec_opcode)command.parameters[0]);
 266   return COMMAND_HANDLED;
 267 }
 268
 269 int CCECCommandHandler::HandleGetCecVersion(const cec_command &command)
 270 {
 271   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 272   {
 273     CCECBusDevice *device = GetDevice(command.destination);
 274     if (device && device->TransmitCECVersion(command.initiator, true))
 275       return COMMAND_HANDLED;
 276     return CEC_ABORT_REASON_INVALID_OPERAND;
 277   }
 278
 279   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 280 }
 281
 282 int CCECCommandHandler::HandleGiveAudioStatus(const cec_command &command)
 283 {
 284   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 285   {
 286     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 287     if (device && device->TransmitAudioStatus(command.initiator, true))
 288       return COMMAND_HANDLED;
 289     return CEC_ABORT_REASON_INVALID_OPERAND;
 290   }
 291
 292   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 293 }
 294
 295 int CCECCommandHandler::HandleGiveDeckStatus(const cec_command &command)
 296 {
 297   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 298   {
 299     CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 300     if (device && device->TransmitDeckStatus(command.initiator, true))
 301       return COMMAND_HANDLED;
 302     return CEC_ABORT_REASON_INVALID_OPERAND;
 303   }
 304
 305   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 306 }
 307
 308 int CCECCommandHandler::HandleGiveDevicePowerStatus(const cec_command &command)
 309 {
 310   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 311   {
 312     CCECBusDevice *device = GetDevice(command.destination);
 313     if (device && device->TransmitPowerState(command.initiator, true))
 314       return COMMAND_HANDLED;
 315     return CEC_ABORT_REASON_INVALID_OPERAND;
 316   }
 317
 318   return CEC_ABORT_REASON_INVALID_OPERAND;
 319 }
 320
 321 int CCECCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 322 {
 323   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 324   {
 325     CCECBusDevice *device = GetDevice(command.destination);
 326     if (device && device->TransmitVendorID(command.initiator, true, true))
 327       return COMMAND_HANDLED;
 328   }
 329
 330   return CEC_ABORT_REASON_INVALID_OPERAND;
 331 }
 332
 333 int CCECCommandHandler::HandleGiveOSDName(const cec_command &command)
 334 {
 335   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 336   {
 337     CCECBusDevice *device = GetDevice(command.destination);
 338     if (device && device->TransmitOSDName(command.initiator, true))
 339       return COMMAND_HANDLED;
 340   }
 341
 342   return CEC_ABORT_REASON_INVALID_OPERAND;
 343 }
 344
 345 int CCECCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 346 {
 347   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 348   {
 349     CCECBusDevice *device = GetDevice(command.destination);
 350     if (device && device->TransmitPhysicalAddress(true))
 351       return COMMAND_HANDLED;
 352     return CEC_ABORT_REASON_INVALID_OPERAND;
 353   }
 354
 355   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 356 }
 357
 358 int CCECCommandHandler::HandleGiveMenuLanguage(const cec_command &command)
 359 {
 360   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 361   {
 362     CCECBusDevice *device = GetDevice(command.destination);
 363     if (device && device->TransmitSetMenuLanguage(command.initiator, true))
 364       return COMMAND_HANDLED;
 365     return CEC_ABORT_REASON_INVALID_OPERAND;
 366   }
 367
 368   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 369 }
 370
 371 int CCECCommandHandler::HandleGiveSystemAudioModeStatus(const cec_command &command)
 372 {
 373   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 374   {
 375     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 376     if (device && device->TransmitSystemAudioModeStatus(command.initiator, true))
 377       return COMMAND_HANDLED;
 378     return CEC_ABORT_REASON_INVALID_OPERAND;
 379   }
 380
 381   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 382 }
 383
 384 int CCECCommandHandler::HandleImageViewOn(const cec_command &command)
 385 {
 386   CCECBusDevice *device = GetDevice(command.destination);
 387   if (device && (device->GetCurrentStatus() == CEC_DEVICE_STATUS_PRESENT ||
 388       device->GetCurrentStatus() == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC))
 389   {
 390     if (device->GetCurrentPowerStatus() == CEC_POWER_STATUS_STANDBY ||
 391         device->GetCurrentPowerStatus() == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY)
 392       device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 393   }
 394   return COMMAND_HANDLED;
 395 }
 396
 397 int CCECCommandHandler::HandleMenuRequest(const cec_command &command)
 398 {
 399   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 400   {
 401     CCECBusDevice *device = GetDevice(command.destination);
 402     if (device)
 403     {
 404       CCECClient *client = device->GetClient();
 405       if (client)
 406       {
 407         if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_ACTIVATE)
 408         {
 409           if (client->MenuStateChanged(CEC_MENU_STATE_ACTIVATED) == 1)
 410             device->SetMenuState(CEC_MENU_STATE_ACTIVATED);
 411         }
 412         else if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_DEACTIVATE)
 413         {
 414           if (client->MenuStateChanged(CEC_MENU_STATE_DEACTIVATED) == 1)
 415             device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 416         }
 417       }
 418       if (device->TransmitMenuState(command.initiator, true))
 419         return COMMAND_HANDLED;
 420     }
 421     return CEC_ABORT_REASON_INVALID_OPERAND;
 422   }
 423
 424   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 425 }
 426
 427 bool CCECCommandHandler::HandlePoll(const cec_command &command)
 428 {
 429   m_busDevice->HandlePoll(command.destination);
 430   return true;
 431 }
 432
 433 int CCECCommandHandler::HandleReportAudioStatus(const cec_command &command)
 434 {
 435   if (command.parameters.size == 1)
 436   {
 437     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 438     if (device)
 439     {
 440       device->SetAudioStatus(command.parameters[0]);
 441       return COMMAND_HANDLED;
 442     }
 443   }
 444   return CEC_ABORT_REASON_INVALID_OPERAND;
 445 }
 446
 447 int CCECCommandHandler::HandleReportPhysicalAddress(const cec_command &command)
 448 {
 449   if (command.parameters.size == 3)
 450   {
 451     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 452     SetPhysicalAddress(command.initiator, iNewAddress);
 453     return COMMAND_HANDLED;
 454   }
 455   return CEC_ABORT_REASON_INVALID_OPERAND;
 456 }
 457
 458 int CCECCommandHandler::HandleReportPowerStatus(const cec_command &command)
 459 {
 460   if (command.parameters.size == 1)
 461   {
 462     CCECBusDevice *device = GetDevice(command.initiator);
 463     if (device)
 464     {
 465       device->SetPowerStatus((cec_power_status) command.parameters[0]);
 466       return COMMAND_HANDLED;
 467     }
 468   }
 469   return CEC_ABORT_REASON_INVALID_OPERAND;
 470 }
 471
 472 int CCECCommandHandler::HandleRequestActiveSource(const cec_command &command)
 473 {
 474   if (m_processor->CECInitialised())
 475   {
 476     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %i requests active source", (uint8_t) command.initiator);
 477     m_processor->GetDevice(command.initiator)->SetPowerStatus(CEC_POWER_STATUS_ON);
 478
 479     vector<CCECBusDevice *> devices;
 480     for (size_t iDevicePtr = 0; iDevicePtr < GetMyDevices(devices); iDevicePtr++)
 481       devices[iDevicePtr]->TransmitActiveSource(true);
 482   }
 483
 484   return COMMAND_HANDLED;
 485 }
 486
 487 int CCECCommandHandler::HandleRoutingChange(const cec_command &command)
 488 {
 489   if (command.parameters.size == 4)
 490   {
 491     CCECBusDevice *device = GetDevice(command.initiator);
 492     if (device)
 493     {
 494       uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 495       device->SetActiveRoute(iNewAddress);
 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     CCECBusDevice *device = GetDevice(command.initiator);
 508     if (device)
 509     {
 510       uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 511       device->SetActiveRoute(iNewAddress);
 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     /* one of the device handled by libCEC has been made active */
 572     CCECBusDevice *device = GetDeviceByPhysicalAddress(iStreamAddress);
 573     if (device && device->IsHandledByLibCEC())
 574     {
 575       device->ActivateSource();
 576       return COMMAND_HANDLED;
 577     }
 578   }
 579
 580   return CEC_ABORT_REASON_INVALID_OPERAND;
 581 }
 582
 583 int CCECCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 584 {
 585   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 586   {
 587     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 588     if (device)
 589     {
 590       if (command.parameters.size >= 2)
 591       {
 592         device->SetPowerStatus(CEC_POWER_STATUS_ON);
 593         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_ON);
 594         uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 595         CCECBusDevice *newActiveDevice = GetDeviceByPhysicalAddress(iNewAddress);
 596         if (newActiveDevice)
 597           newActiveDevice->MarkAsActiveSource();
 598         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 599           return COMMAND_HANDLED;
 600       }
 601       else
 602       {
 603         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_OFF);
 604         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 605           return COMMAND_HANDLED;
 606       }
 607     }
 608   }
 609
 610   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 611 }
 612
 613 int CCECCommandHandler::HandleStandby(const cec_command &command)
 614 {
 615   CCECBusDevice *device = GetDevice(command.initiator);
 616   if (device)
 617     device->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 618
 619   return COMMAND_HANDLED;
 620 }
 621
 622 int CCECCommandHandler::HandleSystemAudioModeStatus(const cec_command &command)
 623 {
 624   if (command.parameters.size == 1)
 625   {
 626     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 627     if (device)
 628     {
 629       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 630       return COMMAND_HANDLED;
 631     }
 632   }
 633
 634   return CEC_ABORT_REASON_INVALID_OPERAND;
 635 }
 636
 637 int CCECCommandHandler::HandleSetSystemAudioMode(const cec_command &command)
 638 {
 639   if (command.parameters.size == 1)
 640   {
 641     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 642     if (device)
 643     {
 644       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 645       return COMMAND_HANDLED;
 646     }
 647   }
 648
 649   return CEC_ABORT_REASON_INVALID_OPERAND;
 650 }
 651
 652 int CCECCommandHandler::HandleTextViewOn(const cec_command &command)
 653 {
 654   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 655   return COMMAND_HANDLED;
 656 }
 657
 658 int CCECCommandHandler::HandleUserControlPressed(const cec_command &command)
 659 {
 660   if (!m_processor->CECInitialised() ||
 661       !m_processor->IsHandledByLibCEC(command.destination))
 662     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 663
 664   if (command.parameters.size == 0)
 665     return CEC_ABORT_REASON_INVALID_OPERAND;
 666
 667   CCECBusDevice *device = GetDevice(command.destination);
 668   if (!device)
 669     return CEC_ABORT_REASON_INVALID_OPERAND;
 670
 671   CCECClient *client = device->GetClient();
 672   if (client)
 673     client->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 674
 675   if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 676       command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION)
 677   {
 678     bool bPowerOn(true);
 679
 680     // CEC_USER_CONTROL_CODE_POWER operates as a toggle
 681     // assume CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION does not
 682     if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER)
 683     {
 684       cec_power_status status = device->GetCurrentPowerStatus();
 685       bPowerOn = !(status == CEC_POWER_STATUS_ON || status == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 686     }
 687
 688     if (bPowerOn)
 689     {
 690       device->ActivateSource();
 691     }
 692     else
 693     {
 694       device->MarkAsInactiveSource();
 695       device->TransmitInactiveSource();
 696       device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 697     }
 698   }
 699
 700   return COMMAND_HANDLED;
 701 }
 702
 703 int CCECCommandHandler::HandleUserControlRelease(const cec_command &command)
 704 {
 705   if (!m_processor->CECInitialised() ||
 706       !m_processor->IsHandledByLibCEC(command.destination))
 707     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 708
 709   CCECClient *client = m_processor->GetClient(command.destination);
 710   if (client)
 711     client->AddKey();
 712
 713   return COMMAND_HANDLED;
 714 }
 715
 716 int CCECCommandHandler::HandleVendorCommand(const cec_command & UNUSED(command))
 717 {
 718   return CEC_ABORT_REASON_INVALID_OPERAND;
 719 }
 720
 721 void CCECCommandHandler::UnhandledCommand(const cec_command &command, const cec_abort_reason reason)
 722 {
 723   if (m_processor->IsHandledByLibCEC(command.destination))
 724   {
 725     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending abort with opcode %02x and reason '%s' to %s", command.opcode, ToString(reason), ToString(command.initiator));
 726     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, reason);
 727   }
 728 }
 729
 730 size_t CCECCommandHandler::GetMyDevices(vector<CCECBusDevice *> &devices) const
 731 {
 732   size_t iReturn(0);
 733
 734   cec_logical_addresses addresses = m_processor->GetLogicalAddresses();
 735   for (uint8_t iPtr = CECDEVICE_TV; iPtr < CECDEVICE_BROADCAST; iPtr++)
 736   {
 737     if (addresses[iPtr])
 738     {
 739       devices.push_back(GetDevice((cec_logical_address) iPtr));
 740       ++iReturn;
 741     }
 742   }
 743
 744   return iReturn;
 745 }
 746
 747 CCECBusDevice *CCECCommandHandler::GetDevice(cec_logical_address iLogicalAddress) const
 748 {
 749   return m_processor->GetDevice(iLogicalAddress);
 750 }
 751
 752 CCECBusDevice *CCECCommandHandler::GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const
 753 {
 754   return m_processor->GetDeviceByPhysicalAddress(iPhysicalAddress);
 755 }
 756
 757 bool CCECCommandHandler::SetVendorId(const cec_command &command)
 758 {
 759   bool bChanged(false);
 760   if (command.parameters.size < 3)
 761   {
 762     LIB_CEC->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 763     return bChanged;
 764   }
 765
 766   uint64_t iVendorId = ((uint64_t)command.parameters[0] << 16) +
 767                        ((uint64_t)command.parameters[1] << 8) +
 768                         (uint64_t)command.parameters[2];
 769
 770   CCECBusDevice *device = GetDevice((cec_logical_address) command.initiator);
 771   if (device)
 772     bChanged = device->SetVendorId(iVendorId);
 773   return bChanged;
 774 }
 775
 776 void CCECCommandHandler::SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress)
 777 {
 778   if (!m_processor->IsHandledByLibCEC(iAddress))
 779   {
 780     CCECBusDevice *otherDevice = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 781     CCECClient *client = otherDevice ? otherDevice->GetClient() : NULL;
 782
 783     CCECBusDevice *device = m_processor->GetDevice(iAddress);
 784     if (device)
 785       device->SetPhysicalAddress(iNewAddress);
 786     else
 787     {
 788       LIB_CEC->AddLog(CEC_LOG_DEBUG, "device with logical address %X not found", iAddress);
 789     }
 790
 791     /* another device reported the same physical address as ours */
 792     if (client)
 793       client->ResetPhysicalAddress();
 794   }
 795   else
 796   {
 797     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);
 798   }
 799 }
 800
 801 bool CCECCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 802 {
 803   if (iDestination == CECDEVICE_TV)
 804     return TransmitImageViewOn(iInitiator, iDestination);
 805
 806   return TransmitKeypress(iInitiator, iDestination, CEC_USER_CONTROL_CODE_POWER) &&
 807     TransmitKeyRelease(iInitiator, iDestination);
 808 }
 809
 810 bool CCECCommandHandler::TransmitImageViewOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 811 {
 812   cec_command command;
 813   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_IMAGE_VIEW_ON);
 814
 815   if (Transmit(command, false, false))
 816   {
 817     CCECBusDevice* dest = m_processor->GetDevice(iDestination);
 818     if (dest && dest->GetCurrentPowerStatus() != CEC_POWER_STATUS_ON)
 819       dest->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 820     return true;
 821   }
 822   return false;
 823 }
 824
 825 bool CCECCommandHandler::TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 826 {
 827   cec_command command;
 828   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_STANDBY);
 829
 830   return Transmit(command, false, false);
 831 }
 832
 833 bool CCECCommandHandler::TransmitRequestActiveSource(const cec_logical_address iInitiator, bool bWaitForResponse /* = true */)
 834 {
 835   cec_command command;
 836   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REQUEST_ACTIVE_SOURCE);
 837
 838   return Transmit(command, !bWaitForResponse, false);
 839 }
 840
 841 bool CCECCommandHandler::TransmitRequestCecVersion(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_CEC_VERSION);
 845
 846   return Transmit(command, !bWaitForResponse, false);
 847 }
 848
 849 bool CCECCommandHandler::TransmitRequestMenuLanguage(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_GET_MENU_LANGUAGE);
 853
 854   return Transmit(command, !bWaitForResponse, false);
 855 }
 856
 857 bool CCECCommandHandler::TransmitRequestOSDName(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_OSD_NAME);
 861
 862   return Transmit(command, !bWaitForResponse, false);
 863 }
 864
 865 bool CCECCommandHandler::TransmitRequestPhysicalAddress(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_PHYSICAL_ADDRESS);
 869
 870   return Transmit(command, !bWaitForResponse, false);
 871 }
 872
 873 bool CCECCommandHandler::TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 874 {
 875   if (iDestination == CECDEVICE_TV)
 876   {
 877     int64_t now(GetTimeMs());
 878     if (now - m_iPowerStatusRequested < REQUEST_POWER_STATUS_TIMEOUT)
 879       return true;
 880     m_iPowerStatusRequested = now;
 881   }
 882
 883   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting power status of '%s' (%X)", m_busDevice->GetLogicalAddressName(), iDestination);
 884
 885   cec_command command;
 886   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_POWER_STATUS);
 887
 888   return Transmit(command, !bWaitForResponse, false);
 889 }
 890
 891 bool CCECCommandHandler::TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 892 {
 893   cec_command command;
 894   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 895
 896   return Transmit(command, !bWaitForResponse, false);
 897 }
 898
 899 bool CCECCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, bool bIsReply)
 900 {
 901   cec_command command;
 902   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 903   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 904   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 905
 906   return Transmit(command, false, bIsReply);
 907 }
 908
 909 bool CCECCommandHandler::TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion, bool bIsReply)
 910 {
 911   cec_command command;
 912   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_CEC_VERSION);
 913   command.parameters.PushBack((uint8_t)cecVersion);
 914
 915   return Transmit(command, false, bIsReply);
 916 }
 917
 918 bool CCECCommandHandler::TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 919 {
 920   cec_command command;
 921   cec_command::Format(command, iInitiator, CECDEVICE_TV, CEC_OPCODE_INACTIVE_SOURCE);
 922   command.parameters.PushBack((iPhysicalAddress >> 8) & 0xFF);
 923   command.parameters.PushBack(iPhysicalAddress & 0xFF);
 924
 925   return Transmit(command, false, false);
 926 }
 927
 928 bool CCECCommandHandler::TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState, bool bIsReply)
 929 {
 930   cec_command command;
 931   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_MENU_STATUS);
 932   command.parameters.PushBack((uint8_t)menuState);
 933
 934   return Transmit(command, false, bIsReply);
 935 }
 936
 937 bool CCECCommandHandler::TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, std::string strDeviceName, bool bIsReply)
 938 {
 939   cec_command command;
 940   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_NAME);
 941   for (size_t iPtr = 0; iPtr < strDeviceName.length(); iPtr++)
 942     command.parameters.PushBack(strDeviceName.at(iPtr));
 943
 944   return Transmit(command, false, bIsReply);
 945 }
 946
 947 bool CCECCommandHandler::TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage, bool bIsReply)
 948 {
 949   cec_command command;
 950   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_STRING);
 951   command.parameters.PushBack((uint8_t)duration);
 952
 953   size_t iLen = strlen(strMessage);
 954   if (iLen > 13) iLen = 13;
 955
 956   for (size_t iPtr = 0; iPtr < iLen; iPtr++)
 957     command.parameters.PushBack(strMessage[iPtr]);
 958
 959   return Transmit(command, false, bIsReply);
 960 }
 961
 962 bool CCECCommandHandler::TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type, bool bIsReply)
 963 {
 964   cec_command command;
 965   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 966   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 967   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 968   command.parameters.PushBack((uint8_t) (type));
 969
 970   return Transmit(command, false, bIsReply);
 971 }
 972
 973 bool CCECCommandHandler::TransmitSetMenuLanguage(const cec_logical_address iInitiator, const char lang[3], bool bIsReply)
 974 {
 975   cec_command command;
 976   command.Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_SET_MENU_LANGUAGE);
 977   command.parameters.PushBack((uint8_t) lang[0]);
 978   command.parameters.PushBack((uint8_t) lang[1]);
 979   command.parameters.PushBack((uint8_t) lang[2]);
 980
 981   return Transmit(command, false, bIsReply);
 982 }
 983
 984 bool CCECCommandHandler::TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bIsReply)
 985 {
 986   cec_command command;
 987   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_NONE);
 988
 989   return Transmit(command, false, bIsReply);
 990 }
 991
 992 bool CCECCommandHandler::TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state, bool bIsReply)
 993 {
 994   cec_command command;
 995   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_POWER_STATUS);
 996   command.parameters.PushBack((uint8_t) state);
 997
 998   return Transmit(command, false, bIsReply);
 999 }
1000
1001 bool CCECCommandHandler::TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId, bool bIsReply)
1002 {
1003   cec_command command;
1004   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_DEVICE_VENDOR_ID);
1005
1006   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 16) & 0xFF));
1007   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 8) & 0xFF));
1008   command.parameters.PushBack((uint8_t) ((uint64_t)iVendorId & 0xFF));
1009
1010   return Transmit(command, false, bIsReply);
1011 }
1012
1013 bool CCECCommandHandler::TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state, bool bIsReply)
1014 {
1015   cec_command command;
1016   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_AUDIO_STATUS);
1017   command.parameters.PushBack(state);
1018
1019   return Transmit(command, false, bIsReply);
1020 }
1021
1022 bool CCECCommandHandler::TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1023 {
1024   cec_command command;
1025   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_SYSTEM_AUDIO_MODE);
1026   command.parameters.PushBack((uint8_t)state);
1027
1028   return Transmit(command, false, bIsReply);
1029 }
1030
1031 bool CCECCommandHandler::TransmitSetStreamPath(uint16_t iStreamPath, bool bIsReply)
1032 {
1033   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
1034   {
1035     LIB_CEC->AddLog(CEC_LOG_ERROR, "only the TV is allowed to send CEC_OPCODE_SET_STREAM_PATH");
1036     return false;
1037   }
1038   cec_command command;
1039   cec_command::Format(command, m_busDevice->GetLogicalAddress(), CECDEVICE_BROADCAST, CEC_OPCODE_SET_STREAM_PATH);
1040   command.parameters.PushBack((uint8_t) ((iStreamPath >> 8) & 0xFF));
1041   command.parameters.PushBack((uint8_t) (iStreamPath        & 0xFF));
1042
1043   return Transmit(command, false, bIsReply);
1044 }
1045
1046 bool CCECCommandHandler::TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1047 {
1048   cec_command command;
1049   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
1050   command.parameters.PushBack((uint8_t)state);
1051
1052   return Transmit(command, false, bIsReply);
1053 }
1054
1055 bool CCECCommandHandler::TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state, bool bIsReply)
1056 {
1057   cec_command command;
1058   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_DECK_STATUS);
1059   command.PushBack((uint8_t)state);
1060
1061   return Transmit(command, false, bIsReply);
1062 }
1063
1064 bool CCECCommandHandler::TransmitKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
1065 {
1066   cec_command command;
1067   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_PRESSED);
1068   command.parameters.PushBack((uint8_t)key);
1069
1070   return Transmit(command, !bWait, false);
1071 }
1072
1073 bool CCECCommandHandler::TransmitKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWait /* = true */)
1074 {
1075   cec_command command;
1076   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_RELEASE);
1077
1078   return Transmit(command, !bWait, false);
1079 }
1080
1081 bool CCECCommandHandler::Transmit(cec_command &command, bool bSuppressWait, bool bIsReply)
1082 {
1083   bool bReturn(false);
1084   cec_opcode expectedResponse(cec_command::GetResponseOpcode(command.opcode));
1085   bool bExpectResponse(expectedResponse != CEC_OPCODE_NONE && !bSuppressWait);
1086   command.transmit_timeout = m_iTransmitTimeout;
1087
1088   if (command.initiator == CECDEVICE_UNKNOWN)
1089   {
1090     LIB_CEC->AddLog(CEC_LOG_ERROR, "not transmitting a command without a valid initiator");
1091     return bReturn;
1092   }
1093
1094   // check whether the destination is not marked as not present or handled by libCEC
1095   if (command.destination != CECDEVICE_BROADCAST && command.opcode_set)
1096   {
1097     CCECBusDevice* destinationDevice = m_processor->GetDevice(command.destination);
1098     cec_bus_device_status status = destinationDevice ? destinationDevice->GetStatus() : CEC_DEVICE_STATUS_NOT_PRESENT;
1099     if (status == CEC_DEVICE_STATUS_NOT_PRESENT)
1100     {
1101       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as not present", ToString(command.opcode),ToString(command.destination));
1102       return bReturn;
1103     }
1104     else if (status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
1105     {
1106       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as handled by libCEC", ToString(command.opcode),ToString(command.destination));
1107       return bReturn;
1108     }
1109   }
1110
1111   {
1112     uint8_t iTries(0), iMaxTries(!command.opcode_set ? 1 : m_iTransmitRetries + 1);
1113     while (!bReturn && ++iTries <= iMaxTries && !m_busDevice->IsUnsupportedFeature(command.opcode))
1114     {
1115       if ((bReturn = m_processor->Transmit(command, bIsReply)) == true)
1116       {
1117 #ifdef CEC_DEBUGGING
1118         LIB_CEC->AddLog(CEC_LOG_DEBUG, "command transmitted");
1119 #endif
1120         if (bExpectResponse)
1121         {
1122           bReturn = m_busDevice->WaitForOpcode(expectedResponse);
1123           LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? "expected response received (%X: %s)" : "expected response not received (%X: %s)", (int)expectedResponse, ToString(expectedResponse));
1124         }
1125       }
1126     }
1127   }
1128
1129   return bReturn;
1130 }
1131
1132 bool CCECCommandHandler::ActivateSource(bool bTransmitDelayedCommandsOnly /* = false */)
1133 {
1134   if (m_busDevice->IsActiveSource() &&
1135       m_busDevice->IsHandledByLibCEC())
1136   {
1137     {
1138       CLockObject lock(m_mutex);
1139       // check if we need to send a delayed source switch
1140       if (bTransmitDelayedCommandsOnly)
1141       {
1142         if (m_iActiveSourcePending == 0 || GetTimeMs() < m_iActiveSourcePending)
1143           return false;
1144
1145 #ifdef CEC_DEBUGGING
1146         LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
1147 #endif
1148       }
1149     }
1150
1151     // update the power state and menu state
1152     if (!bTransmitDelayedCommandsOnly)
1153     {
1154       m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
1155       m_busDevice->SetMenuState(CEC_MENU_STATE_ACTIVATED);
1156     }
1157
1158     // vendor specific hook
1159     VendorPreActivateSourceHook();
1160
1161     // power on the TV
1162     CCECBusDevice* tv = m_processor->GetDevice(CECDEVICE_TV);
1163     bool bTvPresent = (tv && tv->GetStatus() == CEC_DEVICE_STATUS_PRESENT);
1164     bool bActiveSourceFailed(false);
1165     if (bTvPresent)
1166     {
1167       if (tv->GetCurrentPowerStatus() != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
1168         bActiveSourceFailed = !m_busDevice->TransmitImageViewOn();
1169     }
1170     else
1171       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV not present, not sending 'image view on'");
1172
1173     // check if we're allowed to switch sources
1174     bool bSourceSwitchAllowed = SourceSwitchAllowed();
1175     if (!bSourceSwitchAllowed)
1176       LIB_CEC->AddLog(CEC_LOG_DEBUG, "source switch is currently not allowed by command handler");
1177
1178     // switch sources (if allowed)
1179     if (!bActiveSourceFailed && bSourceSwitchAllowed)
1180     {
1181       bActiveSourceFailed = !m_busDevice->TransmitActiveSource(false);
1182       if (bTvPresent && !bActiveSourceFailed)
1183         bActiveSourceFailed = !m_busDevice->TransmitMenuState(CECDEVICE_TV, false);
1184
1185       // update the deck status for playback devices
1186       if (bTvPresent && !bActiveSourceFailed)
1187       {
1188         CCECPlaybackDevice *playbackDevice = m_busDevice->AsPlaybackDevice();
1189         if (playbackDevice && SendDeckStatusUpdateOnActiveSource())
1190           bActiveSourceFailed = !playbackDevice->TransmitDeckStatus(CECDEVICE_TV, false);
1191       }
1192     }
1193
1194     // retry later
1195     if (bActiveSourceFailed || !bSourceSwitchAllowed)
1196     {
1197       LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
1198       int64_t now(GetTimeMs());
1199       CLockObject lock(m_mutex);
1200       if (m_iActiveSourcePending == 0 || m_iActiveSourcePending < now)
1201         m_iActiveSourcePending = now + (int64_t)CEC_ACTIVE_SOURCE_SWITCH_RETRY_TIME_MS;
1202       return false;
1203     }
1204     else
1205     {
1206       CLockObject lock(m_mutex);
1207       // clear previous pending active source command
1208       m_iActiveSourcePending = 0;
1209     }
1210
1211     // mark the handler as initialised
1212     CLockObject lock(m_mutex);
1213     m_bHandlerInited = true;
1214   }
1215   return true;
1216 }
1217
1218 void CCECCommandHandler::ScheduleActivateSource(uint64_t iDelay)
1219 {
1220   CLockObject lock(m_mutex);
1221   m_iActiveSourcePending = GetTimeMs() + iDelay;
1222 }