src/lib/implementations/CECCommandHandler.cpp

   1 /*
   2  * This file is part of the libCEC(R) library.
   3  *
   4  * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
   5  * libCEC(R) is an original work, containing original code.
   6  *
   7  * libCEC(R) is a trademark of Pulse-Eight Limited.
   8  *
   9  * This program is dual-licensed; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22  *
  23  *
  24  * Alternatively, you can license this library under a commercial license,
  25  * please contact Pulse-Eight Licensing for more information.
  26  *
  27  * For more information contact:
  28  * Pulse-Eight Licensing       <license@pulse-eight.com>
  29  *     http://www.pulse-eight.com/
  30  *     http://www.pulse-eight.net/
  31  */
  32
  33 #include "CECCommandHandler.h"
  34 #include "../devices/CECBusDevice.h"
  35 #include "../devices/CECAudioSystem.h"
  36 #include "../devices/CECPlaybackDevice.h"
  37 #include "../CECClient.h"
  38 #include "../CECProcessor.h"
  39 #include "../LibCEC.h"
  40 #include "../CECTypeUtils.h"
  41 #include "../platform/util/util.h"
  42
  43 using namespace CEC;
  44 using namespace std;
  45 using namespace PLATFORM;
  46
  47 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  48 #define ToString(p) CCECTypeUtils::ToString(p)
  49
  50 CCECCommandHandler::CCECCommandHandler(CCECBusDevice *busDevice) :
  51     m_busDevice(busDevice),
  52     m_processor(m_busDevice->GetProcessor()),
  53     m_iTransmitTimeout(CEC_DEFAULT_TRANSMIT_TIMEOUT),
  54     m_iTransmitWait(CEC_DEFAULT_TRANSMIT_WAIT),
  55     m_iTransmitRetries(CEC_DEFAULT_TRANSMIT_RETRIES),
  56     m_bHandlerInited(false),
  57     m_bOPTSendDeckStatusUpdateOnActiveSource(false),
  58     m_vendorId(CEC_VENDOR_UNKNOWN),
  59     m_waitForResponse(new CWaitForResponse),
  60     m_bActiveSourcePending(false)
  61 {
  62 }
  63
  64 CCECCommandHandler::~CCECCommandHandler(void)
  65 {
  66   DELETE_AND_NULL(m_waitForResponse);
  67 }
  68
  69 bool CCECCommandHandler::HandleCommand(const cec_command &command)
  70 {
  71   if (command.opcode_set == 0)
  72     return HandlePoll(command);
  73
  74   bool bHandled(true);
  75
  76   CCECClient *client = m_busDevice->GetClient();
  77   if (client)
  78     client->AddCommand(command);
  79
  80   switch(command.opcode)
  81   {
  82   case CEC_OPCODE_REPORT_POWER_STATUS:
  83     HandleReportPowerStatus(command);
  84     break;
  85   case CEC_OPCODE_CEC_VERSION:
  86     HandleDeviceCecVersion(command);
  87     break;
  88   case CEC_OPCODE_SET_MENU_LANGUAGE:
  89     HandleSetMenuLanguage(command);
  90     break;
  91   case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
  92     if (m_processor->CECInitialised())
  93       HandleGivePhysicalAddress(command);
  94     break;
  95   case CEC_OPCODE_GET_MENU_LANGUAGE:
  96     if (m_processor->CECInitialised())
  97       HandleGiveMenuLanguage(command);
  98     break;
  99   case CEC_OPCODE_GIVE_OSD_NAME:
 100     if (m_processor->CECInitialised())
 101       HandleGiveOSDName(command);
 102     break;
 103   case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
 104     if (m_processor->CECInitialised())
 105       HandleGiveDeviceVendorId(command);
 106     break;
 107   case CEC_OPCODE_DEVICE_VENDOR_ID:
 108     HandleDeviceVendorId(command);
 109     break;
 110   case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 111     HandleDeviceVendorCommandWithId(command);
 112     break;
 113   case CEC_OPCODE_GIVE_DECK_STATUS:
 114     if (m_processor->CECInitialised())
 115       HandleGiveDeckStatus(command);
 116     break;
 117   case CEC_OPCODE_DECK_CONTROL:
 118     HandleDeckControl(command);
 119     break;
 120   case CEC_OPCODE_MENU_REQUEST:
 121     if (m_processor->CECInitialised())
 122       HandleMenuRequest(command);
 123     break;
 124   case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 125     if (m_processor->CECInitialised())
 126       HandleGiveDevicePowerStatus(command);
 127     break;
 128   case CEC_OPCODE_GET_CEC_VERSION:
 129     if (m_processor->CECInitialised())
 130       HandleGetCecVersion(command);
 131     break;
 132   case CEC_OPCODE_USER_CONTROL_PRESSED:
 133     if (m_processor->CECInitialised())
 134       HandleUserControlPressed(command);
 135     break;
 136   case CEC_OPCODE_USER_CONTROL_RELEASE:
 137     if (m_processor->CECInitialised())
 138       HandleUserControlRelease(command);
 139     break;
 140   case CEC_OPCODE_GIVE_AUDIO_STATUS:
 141     if (m_processor->CECInitialised())
 142       HandleGiveAudioStatus(command);
 143     break;
 144   case CEC_OPCODE_GIVE_SYSTEM_AUDIO_MODE_STATUS:
 145     if (m_processor->CECInitialised())
 146       HandleGiveSystemAudioModeStatus(command);
 147     break;
 148   case CEC_OPCODE_SYSTEM_AUDIO_MODE_REQUEST:
 149     if (m_processor->CECInitialised())
 150       HandleSystemAudioModeRequest(command);
 151     break;
 152   case CEC_OPCODE_REPORT_AUDIO_STATUS:
 153     HandleReportAudioStatus(command);
 154     break;
 155   case CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS:
 156     HandleSystemAudioModeStatus(command);
 157     break;
 158   case CEC_OPCODE_SET_SYSTEM_AUDIO_MODE:
 159     HandleSetSystemAudioMode(command);
 160     break;
 161   case CEC_OPCODE_REQUEST_ACTIVE_SOURCE:
 162     if (m_processor->CECInitialised())
 163       HandleRequestActiveSource(command);
 164     break;
 165   case CEC_OPCODE_SET_STREAM_PATH:
 166     HandleSetStreamPath(command);
 167     break;
 168   case CEC_OPCODE_ROUTING_CHANGE:
 169     HandleRoutingChange(command);
 170     break;
 171   case CEC_OPCODE_ROUTING_INFORMATION:
 172     HandleRoutingInformation(command);
 173     break;
 174   case CEC_OPCODE_STANDBY:
 175     if (m_processor->CECInitialised())
 176       HandleStandby(command);
 177     break;
 178   case CEC_OPCODE_ACTIVE_SOURCE:
 179     HandleActiveSource(command);
 180     break;
 181   case CEC_OPCODE_REPORT_PHYSICAL_ADDRESS:
 182     HandleReportPhysicalAddress(command);
 183     break;
 184   case CEC_OPCODE_SET_OSD_NAME:
 185     HandleSetOSDName(command);
 186     break;
 187   case CEC_OPCODE_IMAGE_VIEW_ON:
 188     HandleImageViewOn(command);
 189     break;
 190   case CEC_OPCODE_TEXT_VIEW_ON:
 191     HandleTextViewOn(command);
 192     break;
 193   case CEC_OPCODE_FEATURE_ABORT:
 194     HandleFeatureAbort(command);
 195     break;
 196   case CEC_OPCODE_VENDOR_COMMAND:
 197     HandleVendorCommand(command);
 198     break;
 199   case CEC_OPCODE_PLAY:
 200     // libCEC (currently) doesn't need to do anything with this, since player applications handle it
 201     // but it should not respond with a feature abort
 202     break;
 203   default:
 204     bHandled = false;
 205     break;
 206   }
 207
 208   if (bHandled)
 209     m_waitForResponse->Received((command.opcode == CEC_OPCODE_FEATURE_ABORT && command.parameters.size > 0) ? (cec_opcode)command.parameters[0] : command.opcode);
 210   else
 211     UnhandledCommand(command);
 212
 213   return bHandled;
 214 }
 215
 216 bool CCECCommandHandler::HandleActiveSource(const cec_command &command)
 217 {
 218   if (command.parameters.size == 2)
 219   {
 220     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 221     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iAddress);
 222     if (device)
 223       device->MarkAsActiveSource();
 224   }
 225
 226   return true;
 227 }
 228
 229 bool CCECCommandHandler::HandleDeckControl(const cec_command &command)
 230 {
 231   CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 232   if (device && command.parameters.size > 0)
 233   {
 234     device->SetDeckControlMode((cec_deck_control_mode) command.parameters[0]);
 235     return true;
 236   }
 237
 238   return false;
 239 }
 240
 241 bool CCECCommandHandler::HandleDeviceCecVersion(const cec_command &command)
 242 {
 243   if (command.parameters.size == 1)
 244   {
 245     CCECBusDevice *device = GetDevice(command.initiator);
 246     if (device)
 247       device->SetCecVersion((cec_version) command.parameters[0]);
 248   }
 249
 250   return true;
 251 }
 252
 253 bool CCECCommandHandler::HandleDeviceVendorCommandWithId(const cec_command &command)
 254 {
 255   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 256     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, CEC_ABORT_REASON_REFUSED);
 257
 258   return true;
 259 }
 260
 261 bool CCECCommandHandler::HandleDeviceVendorId(const cec_command &command)
 262 {
 263   return SetVendorId(command);
 264 }
 265
 266 bool CCECCommandHandler::HandleFeatureAbort(const cec_command &command)
 267 {
 268   if (command.parameters.size == 2 &&
 269         (command.parameters[1] == CEC_ABORT_REASON_UNRECOGNIZED_OPCODE ||
 270          command.parameters[1] == CEC_ABORT_REASON_REFUSED))
 271     m_processor->GetDevice(command.initiator)->SetUnsupportedFeature((cec_opcode)command.parameters[0]);
 272   return true;
 273 }
 274
 275 bool CCECCommandHandler::HandleGetCecVersion(const cec_command &command)
 276 {
 277   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 278   {
 279     CCECBusDevice *device = GetDevice(command.destination);
 280     if (device)
 281       return device->TransmitCECVersion(command.initiator);
 282   }
 283
 284   return false;
 285 }
 286
 287 bool CCECCommandHandler::HandleGiveAudioStatus(const cec_command &command)
 288 {
 289   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 290   {
 291     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 292     if (device)
 293       return device->TransmitAudioStatus(command.initiator);
 294   }
 295
 296   return false;
 297 }
 298
 299 bool CCECCommandHandler::HandleGiveDeckStatus(const cec_command &command)
 300 {
 301   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 302   {
 303     CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 304     if (device)
 305       return device->TransmitDeckStatus(command.initiator);
 306   }
 307
 308   return false;
 309 }
 310
 311 bool CCECCommandHandler::HandleGiveDevicePowerStatus(const cec_command &command)
 312 {
 313   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 314   {
 315     CCECBusDevice *device = GetDevice(command.destination);
 316     if (device)
 317       return device->TransmitPowerState(command.initiator);
 318   }
 319
 320   return false;
 321 }
 322
 323 bool CCECCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 324 {
 325   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 326   {
 327     CCECBusDevice *device = GetDevice(command.destination);
 328     if (device)
 329       return device->TransmitVendorID(command.initiator);
 330   }
 331
 332   return false;
 333 }
 334
 335 bool CCECCommandHandler::HandleGiveOSDName(const cec_command &command)
 336 {
 337   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 338   {
 339     CCECBusDevice *device = GetDevice(command.destination);
 340     if (device)
 341       return device->TransmitOSDName(command.initiator);
 342   }
 343
 344   return false;
 345 }
 346
 347 bool CCECCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 348 {
 349   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 350   {
 351     CCECBusDevice *device = GetDevice(command.destination);
 352     if (device)
 353       return device->TransmitPhysicalAddress();
 354   }
 355
 356   return false;
 357 }
 358
 359 bool CCECCommandHandler::HandleGiveMenuLanguage(const cec_command &command)
 360 {
 361   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 362   {
 363     CCECBusDevice *device = GetDevice(command.destination);
 364     if (device)
 365       return device->TransmitSetMenuLanguage(command.initiator);
 366   }
 367
 368   return false;
 369 }
 370
 371 bool 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)
 377       return device->TransmitSystemAudioModeStatus(command.initiator);
 378   }
 379
 380   return false;
 381 }
 382
 383 bool CCECCommandHandler::HandleImageViewOn(const cec_command &command)
 384 {
 385   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 386   return true;
 387 }
 388
 389 bool CCECCommandHandler::HandleMenuRequest(const cec_command &command)
 390 {
 391   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 392   {
 393     CCECBusDevice *device = GetDevice(command.destination);
 394     if (device)
 395     {
 396       CCECClient *client = device->GetClient();
 397       if (client)
 398       {
 399         if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_ACTIVATE)
 400         {
 401           if (client->MenuStateChanged(CEC_MENU_STATE_ACTIVATED) == 1)
 402             device->SetMenuState(CEC_MENU_STATE_ACTIVATED);
 403         }
 404         else if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_DEACTIVATE)
 405         {
 406           if (client->MenuStateChanged(CEC_MENU_STATE_DEACTIVATED) == 1)
 407             device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 408         }
 409       }
 410       return device->TransmitMenuState(command.initiator);
 411     }
 412   }
 413
 414   return false;
 415 }
 416
 417 bool CCECCommandHandler::HandlePoll(const cec_command &command)
 418 {
 419   m_busDevice->HandlePoll(command.destination);
 420   return true;
 421 }
 422
 423 bool CCECCommandHandler::HandleReportAudioStatus(const cec_command &command)
 424 {
 425   if (command.parameters.size == 1)
 426   {
 427     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 428     if (device)
 429     {
 430       device->SetAudioStatus(command.parameters[0]);
 431       return true;
 432     }
 433   }
 434   return false;
 435 }
 436
 437 bool CCECCommandHandler::HandleReportPhysicalAddress(const cec_command &command)
 438 {
 439   if (command.parameters.size == 3)
 440   {
 441     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 442     SetPhysicalAddress(command.initiator, iNewAddress);
 443   }
 444   return true;
 445 }
 446
 447 bool CCECCommandHandler::HandleReportPowerStatus(const cec_command &command)
 448 {
 449   if (command.parameters.size == 1)
 450   {
 451     CCECBusDevice *device = GetDevice(command.initiator);
 452     if (device)
 453       device->SetPowerStatus((cec_power_status) command.parameters[0]);
 454   }
 455   return true;
 456 }
 457
 458 bool CCECCommandHandler::HandleRequestActiveSource(const cec_command &command)
 459 {
 460   if (m_processor->CECInitialised())
 461   {
 462     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %i requests active source", (uint8_t) command.initiator);
 463     m_processor->GetDevice(command.initiator)->SetPowerStatus(CEC_POWER_STATUS_ON);
 464
 465     vector<CCECBusDevice *> devices;
 466     for (size_t iDevicePtr = 0; iDevicePtr < GetMyDevices(devices); iDevicePtr++)
 467       devices[iDevicePtr]->TransmitActiveSource();
 468
 469     return true;
 470   }
 471   return false;
 472 }
 473
 474 bool CCECCommandHandler::HandleRoutingChange(const cec_command &command)
 475 {
 476   if (command.parameters.size == 4)
 477   {
 478     uint16_t iOldAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 479     uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 480
 481     CCECBusDevice *device = GetDevice(command.initiator);
 482     if (device)
 483       device->SetStreamPath(iNewAddress, iOldAddress);
 484   }
 485   return true;
 486 }
 487
 488 bool CCECCommandHandler::HandleRoutingInformation(const cec_command &command)
 489 {
 490   if (command.parameters.size == 2)
 491   {
 492     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 493     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 494     if (device)
 495       device->MarkAsActiveSource();
 496   }
 497
 498   return false;
 499 }
 500
 501 bool CCECCommandHandler::HandleSetMenuLanguage(const cec_command &command)
 502 {
 503   if (command.parameters.size == 3)
 504   {
 505     CCECBusDevice *device = GetDevice(command.initiator);
 506     if (device)
 507     {
 508       cec_menu_language language;
 509       language.device = command.initiator;
 510       for (uint8_t iPtr = 0; iPtr < 4; iPtr++)
 511         language.language[iPtr] = command.parameters[iPtr];
 512       language.language[3] = 0;
 513       device->SetMenuLanguage(language);
 514       return true;
 515     }
 516   }
 517   return false;
 518 }
 519
 520 bool CCECCommandHandler::HandleSetOSDName(const cec_command &command)
 521 {
 522   if (command.parameters.size > 0)
 523   {
 524     CCECBusDevice *device = GetDevice(command.initiator);
 525     if (device)
 526     {
 527       char buf[1024];
 528       for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 529         buf[iPtr] = (char)command.parameters[iPtr];
 530       buf[command.parameters.size] = 0;
 531
 532       CStdString strName(buf);
 533       device->SetOSDName(strName);
 534
 535       return true;
 536     }
 537   }
 538   return false;
 539 }
 540
 541 bool CCECCommandHandler::HandleSetStreamPath(const cec_command &command)
 542 {
 543   if (m_processor->CECInitialised() && command.parameters.size >= 2)
 544   {
 545     uint16_t iStreamAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 546     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %i sets stream path to physical address %04x", command.initiator, iStreamAddress);
 547
 548     /* one of the device handled by libCEC has been made active */
 549     CCECBusDevice *device = GetDeviceByPhysicalAddress(iStreamAddress);
 550     if (device && device->IsHandledByLibCEC())
 551       device->ActivateSource();
 552   }
 553   return false;
 554 }
 555
 556 bool CCECCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 557 {
 558   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 559   {
 560     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 561     if (device)
 562     {
 563       if (command.parameters.size >= 2)
 564       {
 565         device->SetPowerStatus(CEC_POWER_STATUS_ON);
 566         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_ON);
 567         uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 568         CCECBusDevice *newActiveDevice = GetDeviceByPhysicalAddress(iNewAddress);
 569         if (newActiveDevice)
 570           newActiveDevice->MarkAsActiveSource();
 571         return device->TransmitSetSystemAudioMode(command.initiator);
 572       }
 573       else
 574       {
 575         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_OFF);
 576         return device->TransmitSetSystemAudioMode(command.initiator);
 577       }
 578     }
 579   }
 580   return false;
 581 }
 582
 583 bool CCECCommandHandler::HandleStandby(const cec_command &command)
 584 {
 585   CCECBusDevice *device = GetDevice(command.initiator);
 586   if (device)
 587     device->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 588
 589   return true;
 590 }
 591
 592 bool CCECCommandHandler::HandleSystemAudioModeStatus(const cec_command &command)
 593 {
 594   if (command.parameters.size == 1)
 595   {
 596     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 597     if (device)
 598     {
 599       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 600       return true;
 601     }
 602   }
 603
 604   return false;
 605 }
 606
 607 bool CCECCommandHandler::HandleSetSystemAudioMode(const cec_command &command)
 608 {
 609   if (command.parameters.size == 1)
 610   {
 611     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 612     if (device)
 613     {
 614       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 615       return true;
 616     }
 617   }
 618
 619   return false;
 620 }
 621
 622 bool CCECCommandHandler::HandleTextViewOn(const cec_command &command)
 623 {
 624   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 625   return true;
 626 }
 627
 628 bool CCECCommandHandler::HandleUserControlPressed(const cec_command &command)
 629 {
 630   if (m_processor->CECInitialised() &&
 631       m_processor->IsHandledByLibCEC(command.destination) &&
 632       command.parameters.size > 0)
 633   {
 634     CCECBusDevice *device = GetDevice(command.destination);
 635     if (!device)
 636       return true;
 637
 638     CCECClient *client = device->GetClient();
 639     if (client)
 640       client->AddKey();
 641
 642     if (command.parameters[0] <= CEC_USER_CONTROL_CODE_MAX)
 643       client->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 644
 645     if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 646         command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION)
 647     {
 648       bool bPowerOn(true);
 649       if (!device)
 650         return true;
 651
 652       // CEC_USER_CONTROL_CODE_POWER operates as a toggle
 653       // assume CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION does not
 654       if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER)
 655       {
 656         cec_power_status status = device->GetCurrentPowerStatus();
 657         bPowerOn = !(status == CEC_POWER_STATUS_ON || status == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 658       }
 659
 660       if (bPowerOn)
 661       {
 662         device->ActivateSource();
 663       }
 664       else
 665       {
 666         device->MarkAsInactiveSource();
 667         device->TransmitInactiveSource();
 668         device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 669       }
 670     }
 671
 672     return true;
 673   }
 674   return false;
 675 }
 676
 677 bool CCECCommandHandler::HandleUserControlRelease(const cec_command &command)
 678 {
 679   CCECClient *client = m_processor->GetClient(command.destination);
 680   if (client)
 681     client->AddKey();
 682   return true;
 683 }
 684
 685 bool CCECCommandHandler::HandleVendorCommand(const cec_command &command)
 686 {
 687   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 688     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, CEC_ABORT_REASON_REFUSED);
 689   return true;
 690 }
 691
 692 void CCECCommandHandler::UnhandledCommand(const cec_command &command)
 693 {
 694   LIB_CEC->AddLog(CEC_LOG_DEBUG, "unhandled command with opcode %02x from address %d", command.opcode, command.initiator);
 695
 696   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 697     m_processor->TransmitAbort(m_busDevice->GetLogicalAddress(), command.initiator, command.opcode, CEC_ABORT_REASON_UNRECOGNIZED_OPCODE);
 698 }
 699
 700 size_t CCECCommandHandler::GetMyDevices(vector<CCECBusDevice *> &devices) const
 701 {
 702   size_t iReturn(0);
 703
 704   cec_logical_addresses addresses = m_processor->GetLogicalAddresses();
 705   for (uint8_t iPtr = CECDEVICE_TV; iPtr < CECDEVICE_BROADCAST; iPtr++)
 706   {
 707     if (addresses[iPtr])
 708     {
 709       devices.push_back(GetDevice((cec_logical_address) iPtr));
 710       ++iReturn;
 711     }
 712   }
 713
 714   return iReturn;
 715 }
 716
 717 CCECBusDevice *CCECCommandHandler::GetDevice(cec_logical_address iLogicalAddress) const
 718 {
 719   return m_processor->GetDevice(iLogicalAddress);
 720 }
 721
 722 CCECBusDevice *CCECCommandHandler::GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const
 723 {
 724   return m_processor->GetDeviceByPhysicalAddress(iPhysicalAddress);
 725 }
 726
 727 bool CCECCommandHandler::SetVendorId(const cec_command &command)
 728 {
 729   bool bChanged(false);
 730   if (command.parameters.size < 3)
 731   {
 732     LIB_CEC->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 733     return bChanged;
 734   }
 735
 736   uint64_t iVendorId = ((uint64_t)command.parameters[0] << 16) +
 737                        ((uint64_t)command.parameters[1] << 8) +
 738                         (uint64_t)command.parameters[2];
 739
 740   CCECBusDevice *device = GetDevice((cec_logical_address) command.initiator);
 741   if (device)
 742     bChanged = device->SetVendorId(iVendorId);
 743   return bChanged;
 744 }
 745
 746 void CCECCommandHandler::SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress)
 747 {
 748   if (!m_processor->IsHandledByLibCEC(iAddress))
 749   {
 750     CCECBusDevice *otherDevice = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 751     CCECClient *client = otherDevice ? otherDevice->GetClient() : NULL;
 752
 753     CCECBusDevice *device = m_processor->GetDevice(iAddress);
 754     if (device)
 755       device->SetPhysicalAddress(iNewAddress);
 756     else
 757     {
 758       LIB_CEC->AddLog(CEC_LOG_DEBUG, "device with logical address %X not found", iAddress);
 759     }
 760
 761     /* another device reported the same physical address as ours */
 762     if (client)
 763       client->ResetPhysicalAddress();
 764   }
 765   else
 766   {
 767     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);
 768   }
 769 }
 770
 771 bool CCECCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 772 {
 773   if (iDestination == CECDEVICE_TV)
 774     return TransmitImageViewOn(iInitiator, iDestination);
 775
 776   return TransmitKeypress(iInitiator, iDestination, CEC_USER_CONTROL_CODE_POWER) &&
 777     TransmitKeyRelease(iInitiator, iDestination);
 778 }
 779
 780 bool CCECCommandHandler::TransmitImageViewOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 781 {
 782   cec_command command;
 783   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_IMAGE_VIEW_ON);
 784
 785   return Transmit(command);
 786 }
 787
 788 bool CCECCommandHandler::TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 789 {
 790   cec_command command;
 791   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_STANDBY);
 792
 793   return Transmit(command);
 794 }
 795
 796 bool CCECCommandHandler::TransmitRequestActiveSource(const cec_logical_address iInitiator, bool bWaitForResponse /* = true */)
 797 {
 798   cec_command command;
 799   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REQUEST_ACTIVE_SOURCE);
 800
 801   return Transmit(command, !bWaitForResponse);
 802 }
 803
 804 bool CCECCommandHandler::TransmitRequestCecVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 805 {
 806   cec_command command;
 807   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_CEC_VERSION);
 808
 809   return Transmit(command, !bWaitForResponse);
 810 }
 811
 812 bool CCECCommandHandler::TransmitRequestMenuLanguage(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 813 {
 814   cec_command command;
 815   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_MENU_LANGUAGE);
 816
 817   return Transmit(command, !bWaitForResponse);
 818 }
 819
 820 bool CCECCommandHandler::TransmitRequestOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 821 {
 822   cec_command command;
 823   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_OSD_NAME);
 824
 825   return Transmit(command, !bWaitForResponse);
 826 }
 827
 828 bool CCECCommandHandler::TransmitRequestPhysicalAddress(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 829 {
 830   cec_command command;
 831   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_PHYSICAL_ADDRESS);
 832
 833   return Transmit(command, !bWaitForResponse);
 834 }
 835
 836 bool CCECCommandHandler::TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 837 {
 838   cec_command command;
 839   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_POWER_STATUS);
 840
 841   return Transmit(command, !bWaitForResponse);
 842 }
 843
 844 bool CCECCommandHandler::TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 845 {
 846   cec_command command;
 847   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 848
 849   return Transmit(command, !bWaitForResponse);
 850 }
 851
 852 bool CCECCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 853 {
 854   cec_command command;
 855   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 856   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 857   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 858
 859   return Transmit(command);
 860 }
 861
 862 bool CCECCommandHandler::TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion)
 863 {
 864   cec_command command;
 865   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_CEC_VERSION);
 866   command.parameters.PushBack((uint8_t)cecVersion);
 867
 868   return Transmit(command);
 869 }
 870
 871 bool CCECCommandHandler::TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 872 {
 873   cec_command command;
 874   cec_command::Format(command, iInitiator, CECDEVICE_TV, CEC_OPCODE_INACTIVE_SOURCE);
 875   command.parameters.PushBack((iPhysicalAddress >> 8) & 0xFF);
 876   command.parameters.PushBack(iPhysicalAddress & 0xFF);
 877
 878   return Transmit(command);
 879 }
 880
 881 bool CCECCommandHandler::TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState)
 882 {
 883   cec_command command;
 884   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_MENU_STATUS);
 885   command.parameters.PushBack((uint8_t)menuState);
 886
 887   return Transmit(command);
 888 }
 889
 890 bool CCECCommandHandler::TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, CStdString strDeviceName)
 891 {
 892   cec_command command;
 893   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_NAME);
 894   for (size_t iPtr = 0; iPtr < strDeviceName.length(); iPtr++)
 895     command.parameters.PushBack(strDeviceName.at(iPtr));
 896
 897   return Transmit(command);
 898 }
 899
 900 bool CCECCommandHandler::TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage)
 901 {
 902   cec_command command;
 903   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_STRING);
 904   command.parameters.PushBack((uint8_t)duration);
 905
 906   size_t iLen = strlen(strMessage);
 907   if (iLen > 13) iLen = 13;
 908
 909   for (size_t iPtr = 0; iPtr < iLen; iPtr++)
 910     command.parameters.PushBack(strMessage[iPtr]);
 911
 912   return Transmit(command);
 913 }
 914
 915 bool CCECCommandHandler::TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type)
 916 {
 917   cec_command command;
 918   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 919   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 920   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 921   command.parameters.PushBack((uint8_t) (type));
 922
 923   return Transmit(command);
 924 }
 925
 926 bool CCECCommandHandler::TransmitSetMenuLanguage(const cec_logical_address iInitiator, const char lang[3])
 927 {
 928   cec_command command;
 929   command.Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_SET_MENU_LANGUAGE);
 930   command.parameters.PushBack((uint8_t) lang[0]);
 931   command.parameters.PushBack((uint8_t) lang[1]);
 932   command.parameters.PushBack((uint8_t) lang[2]);
 933
 934   return Transmit(command);
 935 }
 936
 937 bool CCECCommandHandler::TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 938 {
 939   cec_command command;
 940   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_NONE);
 941
 942   return Transmit(command);
 943 }
 944
 945 bool CCECCommandHandler::TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state)
 946 {
 947   cec_command command;
 948   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_POWER_STATUS);
 949   command.parameters.PushBack((uint8_t) state);
 950
 951   return Transmit(command);
 952 }
 953
 954 bool CCECCommandHandler::TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId)
 955 {
 956   cec_command command;
 957   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_DEVICE_VENDOR_ID);
 958
 959   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 16) & 0xFF));
 960   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 8) & 0xFF));
 961   command.parameters.PushBack((uint8_t) ((uint64_t)iVendorId & 0xFF));
 962
 963   return Transmit(command);
 964 }
 965
 966 bool CCECCommandHandler::TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state)
 967 {
 968   cec_command command;
 969   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_AUDIO_STATUS);
 970   command.parameters.PushBack(state);
 971
 972   return Transmit(command);
 973 }
 974
 975 bool CCECCommandHandler::TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state)
 976 {
 977   cec_command command;
 978   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_SYSTEM_AUDIO_MODE);
 979   command.parameters.PushBack((uint8_t)state);
 980
 981   return Transmit(command);
 982 }
 983
 984 bool CCECCommandHandler::TransmitSetStreamPath(uint16_t iStreamPath)
 985 {
 986   cec_command command;
 987   cec_command::Format(command, m_busDevice->GetLogicalAddress(), CECDEVICE_BROADCAST, CEC_OPCODE_SET_STREAM_PATH);
 988   command.parameters.PushBack((uint8_t) ((iStreamPath >> 8) & 0xFF));
 989   command.parameters.PushBack((uint8_t) (iStreamPath        & 0xFF));
 990
 991   return Transmit(command);
 992 }
 993
 994 bool CCECCommandHandler::TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state)
 995 {
 996   cec_command command;
 997   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
 998   command.parameters.PushBack((uint8_t)state);
 999
1000   return Transmit(command);
1001 }
1002
1003 bool CCECCommandHandler::TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state)
1004 {
1005   cec_command command;
1006   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_DECK_STATUS);
1007   command.PushBack((uint8_t)state);
1008
1009   return Transmit(command);
1010 }
1011
1012 bool CCECCommandHandler::TransmitKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
1013 {
1014   cec_command command;
1015   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_PRESSED);
1016   command.parameters.PushBack((uint8_t)key);
1017
1018   return Transmit(command, !bWait);
1019 }
1020
1021 bool CCECCommandHandler::TransmitKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWait /* = true */)
1022 {
1023   cec_command command;
1024   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_RELEASE);
1025
1026   return Transmit(command, !bWait);
1027 }
1028
1029 bool CCECCommandHandler::Transmit(cec_command &command, bool bSuppressWait /* = false */)
1030 {
1031   bool bReturn(false);
1032   cec_opcode expectedResponse(cec_command::GetResponseOpcode(command.opcode));
1033   bool bExpectResponse(expectedResponse != CEC_OPCODE_NONE && !bSuppressWait);
1034   command.transmit_timeout = m_iTransmitTimeout;
1035
1036   if (command.initiator == CECDEVICE_UNKNOWN)
1037   {
1038     LIB_CEC->AddLog(CEC_LOG_ERROR, "not transmitting a command without a valid initiator");
1039     return bReturn;
1040   }
1041
1042   {
1043     uint8_t iTries(0), iMaxTries(!command.opcode_set ? 1 : m_iTransmitRetries + 1);
1044     while (!bReturn && ++iTries <= iMaxTries && !m_busDevice->IsUnsupportedFeature(command.opcode))
1045     {
1046       if ((bReturn = m_processor->Transmit(command)) == true)
1047       {
1048         LIB_CEC->AddLog(CEC_LOG_DEBUG, "command transmitted");
1049         if (bExpectResponse)
1050         {
1051           bReturn = m_waitForResponse->Wait(expectedResponse);
1052           LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? "expected response received (%X: %s)" : "expected response not received (%X: %s)", (int)expectedResponse, ToString(expectedResponse));
1053         }
1054       }
1055     }
1056   }
1057
1058   return bReturn;
1059 }
1060
1061 bool CCECCommandHandler::ActivateSource(void)
1062 {
1063   if (m_busDevice->IsActiveSource() &&
1064     m_busDevice->IsHandledByLibCEC())
1065   {
1066     {
1067       CLockObject lock(m_mutex);
1068       m_bActiveSourcePending = false;
1069     }
1070
1071     m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
1072     m_busDevice->SetMenuState(CEC_MENU_STATE_ACTIVATED);
1073
1074     bool bActiveSourceFailed = !m_busDevice->TransmitImageViewOn() ||
1075                                !m_busDevice->TransmitActiveSource() ||
1076                                !m_busDevice->TransmitMenuState(CECDEVICE_TV);
1077
1078     if (!bActiveSourceFailed)
1079     {
1080       CCECPlaybackDevice *playbackDevice = m_busDevice->AsPlaybackDevice();
1081       if (playbackDevice && SendDeckStatusUpdateOnActiveSource())
1082         bActiveSourceFailed = !playbackDevice->TransmitDeckStatus(CECDEVICE_TV);
1083     }
1084
1085     if (bActiveSourceFailed)
1086     {
1087       LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
1088       CLockObject lock(m_mutex);
1089       m_bActiveSourcePending = true;
1090       return false;
1091     }
1092
1093     m_bHandlerInited = true;
1094   }
1095   return true;
1096 }
1097
1098 void CCECCommandHandler::SignalOpcode(cec_opcode opcode)
1099 {
1100   m_waitForResponse->Received(opcode);
1101 }
1102
1103 bool CCECCommandHandler::ActiveSourcePending(void)
1104 {
1105   CLockObject lock(m_mutex);
1106   return m_bActiveSourcePending;
1107 }