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->AddKey();
 677
 678   if (command.parameters[0] <= CEC_USER_CONTROL_CODE_MAX)
 679     client->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 680
 681   if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 682       command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION)
 683   {
 684     bool bPowerOn(true);
 685
 686     // CEC_USER_CONTROL_CODE_POWER operates as a toggle
 687     // assume CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION does not
 688     if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER)
 689     {
 690       cec_power_status status = device->GetCurrentPowerStatus();
 691       bPowerOn = !(status == CEC_POWER_STATUS_ON || status == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 692     }
 693
 694     if (bPowerOn)
 695     {
 696       device->ActivateSource();
 697     }
 698     else
 699     {
 700       device->MarkAsInactiveSource();
 701       device->TransmitInactiveSource();
 702       device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 703     }
 704   }
 705
 706   return COMMAND_HANDLED;
 707 }
 708
 709 int CCECCommandHandler::HandleUserControlRelease(const cec_command &command)
 710 {
 711   if (!m_processor->CECInitialised() ||
 712       !m_processor->IsHandledByLibCEC(command.destination))
 713     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 714
 715   CCECClient *client = m_processor->GetClient(command.destination);
 716   if (client)
 717     client->AddKey();
 718
 719   return COMMAND_HANDLED;
 720 }
 721
 722 int CCECCommandHandler::HandleVendorCommand(const cec_command & UNUSED(command))
 723 {
 724   return CEC_ABORT_REASON_INVALID_OPERAND;
 725 }
 726
 727 void CCECCommandHandler::UnhandledCommand(const cec_command &command, const cec_abort_reason reason)
 728 {
 729   if (m_processor->IsHandledByLibCEC(command.destination))
 730   {
 731     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending abort with opcode %02x and reason '%s' to %s", command.opcode, ToString(reason), ToString(command.initiator));
 732     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, reason);
 733   }
 734 }
 735
 736 size_t CCECCommandHandler::GetMyDevices(vector<CCECBusDevice *> &devices) const
 737 {
 738   size_t iReturn(0);
 739
 740   cec_logical_addresses addresses = m_processor->GetLogicalAddresses();
 741   for (uint8_t iPtr = CECDEVICE_TV; iPtr < CECDEVICE_BROADCAST; iPtr++)
 742   {
 743     if (addresses[iPtr])
 744     {
 745       devices.push_back(GetDevice((cec_logical_address) iPtr));
 746       ++iReturn;
 747     }
 748   }
 749
 750   return iReturn;
 751 }
 752
 753 CCECBusDevice *CCECCommandHandler::GetDevice(cec_logical_address iLogicalAddress) const
 754 {
 755   return m_processor->GetDevice(iLogicalAddress);
 756 }
 757
 758 CCECBusDevice *CCECCommandHandler::GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const
 759 {
 760   return m_processor->GetDeviceByPhysicalAddress(iPhysicalAddress);
 761 }
 762
 763 bool CCECCommandHandler::SetVendorId(const cec_command &command)
 764 {
 765   bool bChanged(false);
 766   if (command.parameters.size < 3)
 767   {
 768     LIB_CEC->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 769     return bChanged;
 770   }
 771
 772   uint64_t iVendorId = ((uint64_t)command.parameters[0] << 16) +
 773                        ((uint64_t)command.parameters[1] << 8) +
 774                         (uint64_t)command.parameters[2];
 775
 776   CCECBusDevice *device = GetDevice((cec_logical_address) command.initiator);
 777   if (device)
 778     bChanged = device->SetVendorId(iVendorId);
 779   return bChanged;
 780 }
 781
 782 void CCECCommandHandler::SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress)
 783 {
 784   if (!m_processor->IsHandledByLibCEC(iAddress))
 785   {
 786     CCECBusDevice *otherDevice = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 787     CCECClient *client = otherDevice ? otherDevice->GetClient() : NULL;
 788
 789     CCECBusDevice *device = m_processor->GetDevice(iAddress);
 790     if (device)
 791       device->SetPhysicalAddress(iNewAddress);
 792     else
 793     {
 794       LIB_CEC->AddLog(CEC_LOG_DEBUG, "device with logical address %X not found", iAddress);
 795     }
 796
 797     /* another device reported the same physical address as ours */
 798     if (client)
 799       client->ResetPhysicalAddress();
 800   }
 801   else
 802   {
 803     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);
 804   }
 805 }
 806
 807 bool CCECCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 808 {
 809   if (iDestination == CECDEVICE_TV)
 810     return TransmitImageViewOn(iInitiator, iDestination);
 811
 812   return TransmitKeypress(iInitiator, iDestination, CEC_USER_CONTROL_CODE_POWER) &&
 813     TransmitKeyRelease(iInitiator, iDestination);
 814 }
 815
 816 bool CCECCommandHandler::TransmitImageViewOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 817 {
 818   cec_command command;
 819   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_IMAGE_VIEW_ON);
 820
 821   return Transmit(command, false, false);
 822 }
 823
 824 bool CCECCommandHandler::TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 825 {
 826   cec_command command;
 827   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_STANDBY);
 828
 829   return Transmit(command, false, false);
 830 }
 831
 832 bool CCECCommandHandler::TransmitRequestActiveSource(const cec_logical_address iInitiator, bool bWaitForResponse /* = true */)
 833 {
 834   cec_command command;
 835   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REQUEST_ACTIVE_SOURCE);
 836
 837   return Transmit(command, !bWaitForResponse, false);
 838 }
 839
 840 bool CCECCommandHandler::TransmitRequestCecVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 841 {
 842   cec_command command;
 843   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_CEC_VERSION);
 844
 845   return Transmit(command, !bWaitForResponse, false);
 846 }
 847
 848 bool CCECCommandHandler::TransmitRequestMenuLanguage(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 849 {
 850   cec_command command;
 851   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_MENU_LANGUAGE);
 852
 853   return Transmit(command, !bWaitForResponse, false);
 854 }
 855
 856 bool CCECCommandHandler::TransmitRequestOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 857 {
 858   cec_command command;
 859   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_OSD_NAME);
 860
 861   return Transmit(command, !bWaitForResponse, false);
 862 }
 863
 864 bool CCECCommandHandler::TransmitRequestPhysicalAddress(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 865 {
 866   cec_command command;
 867   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_PHYSICAL_ADDRESS);
 868
 869   return Transmit(command, !bWaitForResponse, false);
 870 }
 871
 872 bool CCECCommandHandler::TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 873 {
 874   cec_command command;
 875   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_POWER_STATUS);
 876
 877   return Transmit(command, !bWaitForResponse, false);
 878 }
 879
 880 bool CCECCommandHandler::TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 881 {
 882   cec_command command;
 883   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 884
 885   return Transmit(command, !bWaitForResponse, false);
 886 }
 887
 888 bool CCECCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, bool bIsReply)
 889 {
 890   cec_command command;
 891   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 892   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 893   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 894
 895   return Transmit(command, false, bIsReply);
 896 }
 897
 898 bool CCECCommandHandler::TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion, bool bIsReply)
 899 {
 900   cec_command command;
 901   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_CEC_VERSION);
 902   command.parameters.PushBack((uint8_t)cecVersion);
 903
 904   return Transmit(command, false, bIsReply);
 905 }
 906
 907 bool CCECCommandHandler::TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 908 {
 909   cec_command command;
 910   cec_command::Format(command, iInitiator, CECDEVICE_TV, CEC_OPCODE_INACTIVE_SOURCE);
 911   command.parameters.PushBack((iPhysicalAddress >> 8) & 0xFF);
 912   command.parameters.PushBack(iPhysicalAddress & 0xFF);
 913
 914   return Transmit(command, false, false);
 915 }
 916
 917 bool CCECCommandHandler::TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState, bool bIsReply)
 918 {
 919   cec_command command;
 920   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_MENU_STATUS);
 921   command.parameters.PushBack((uint8_t)menuState);
 922
 923   return Transmit(command, false, bIsReply);
 924 }
 925
 926 bool CCECCommandHandler::TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, std::string strDeviceName, bool bIsReply)
 927 {
 928   cec_command command;
 929   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_NAME);
 930   for (size_t iPtr = 0; iPtr < strDeviceName.length(); iPtr++)
 931     command.parameters.PushBack(strDeviceName.at(iPtr));
 932
 933   return Transmit(command, false, bIsReply);
 934 }
 935
 936 bool CCECCommandHandler::TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage, bool bIsReply)
 937 {
 938   cec_command command;
 939   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_STRING);
 940   command.parameters.PushBack((uint8_t)duration);
 941
 942   size_t iLen = strlen(strMessage);
 943   if (iLen > 13) iLen = 13;
 944
 945   for (size_t iPtr = 0; iPtr < iLen; iPtr++)
 946     command.parameters.PushBack(strMessage[iPtr]);
 947
 948   return Transmit(command, false, bIsReply);
 949 }
 950
 951 bool CCECCommandHandler::TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type, bool bIsReply)
 952 {
 953   cec_command command;
 954   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 955   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 956   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 957   command.parameters.PushBack((uint8_t) (type));
 958
 959   return Transmit(command, false, bIsReply);
 960 }
 961
 962 bool CCECCommandHandler::TransmitSetMenuLanguage(const cec_logical_address iInitiator, const char lang[3], bool bIsReply)
 963 {
 964   cec_command command;
 965   command.Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_SET_MENU_LANGUAGE);
 966   command.parameters.PushBack((uint8_t) lang[0]);
 967   command.parameters.PushBack((uint8_t) lang[1]);
 968   command.parameters.PushBack((uint8_t) lang[2]);
 969
 970   return Transmit(command, false, bIsReply);
 971 }
 972
 973 bool CCECCommandHandler::TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bIsReply)
 974 {
 975   cec_command command;
 976   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_NONE);
 977
 978   return Transmit(command, false, bIsReply);
 979 }
 980
 981 bool CCECCommandHandler::TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state, bool bIsReply)
 982 {
 983   cec_command command;
 984   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_POWER_STATUS);
 985   command.parameters.PushBack((uint8_t) state);
 986
 987   return Transmit(command, false, bIsReply);
 988 }
 989
 990 bool CCECCommandHandler::TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId, bool bIsReply)
 991 {
 992   cec_command command;
 993   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_DEVICE_VENDOR_ID);
 994
 995   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 16) & 0xFF));
 996   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 8) & 0xFF));
 997   command.parameters.PushBack((uint8_t) ((uint64_t)iVendorId & 0xFF));
 998
 999   return Transmit(command, false, bIsReply);
1000 }
1001
1002 bool CCECCommandHandler::TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state, bool bIsReply)
1003 {
1004   cec_command command;
1005   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_AUDIO_STATUS);
1006   command.parameters.PushBack(state);
1007
1008   return Transmit(command, false, bIsReply);
1009 }
1010
1011 bool CCECCommandHandler::TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1012 {
1013   cec_command command;
1014   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_SYSTEM_AUDIO_MODE);
1015   command.parameters.PushBack((uint8_t)state);
1016
1017   return Transmit(command, false, bIsReply);
1018 }
1019
1020 bool CCECCommandHandler::TransmitSetStreamPath(uint16_t iStreamPath, bool bIsReply)
1021 {
1022   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
1023   {
1024     LIB_CEC->AddLog(CEC_LOG_ERROR, "only the TV is allowed to send CEC_OPCODE_SET_STREAM_PATH");
1025     return false;
1026   }
1027   cec_command command;
1028   cec_command::Format(command, m_busDevice->GetLogicalAddress(), CECDEVICE_BROADCAST, CEC_OPCODE_SET_STREAM_PATH);
1029   command.parameters.PushBack((uint8_t) ((iStreamPath >> 8) & 0xFF));
1030   command.parameters.PushBack((uint8_t) (iStreamPath        & 0xFF));
1031
1032   return Transmit(command, false, bIsReply);
1033 }
1034
1035 bool CCECCommandHandler::TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1036 {
1037   cec_command command;
1038   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
1039   command.parameters.PushBack((uint8_t)state);
1040
1041   return Transmit(command, false, bIsReply);
1042 }
1043
1044 bool CCECCommandHandler::TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state, bool bIsReply)
1045 {
1046   cec_command command;
1047   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_DECK_STATUS);
1048   command.PushBack((uint8_t)state);
1049
1050   return Transmit(command, false, bIsReply);
1051 }
1052
1053 bool CCECCommandHandler::TransmitKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
1054 {
1055   cec_command command;
1056   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_PRESSED);
1057   command.parameters.PushBack((uint8_t)key);
1058
1059   return Transmit(command, !bWait, false);
1060 }
1061
1062 bool CCECCommandHandler::TransmitKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWait /* = true */)
1063 {
1064   cec_command command;
1065   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_RELEASE);
1066
1067   return Transmit(command, !bWait, false);
1068 }
1069
1070 bool CCECCommandHandler::Transmit(cec_command &command, bool bSuppressWait, bool bIsReply)
1071 {
1072   bool bReturn(false);
1073   cec_opcode expectedResponse(cec_command::GetResponseOpcode(command.opcode));
1074   bool bExpectResponse(expectedResponse != CEC_OPCODE_NONE && !bSuppressWait);
1075   command.transmit_timeout = m_iTransmitTimeout;
1076
1077   if (command.initiator == CECDEVICE_UNKNOWN)
1078   {
1079     LIB_CEC->AddLog(CEC_LOG_ERROR, "not transmitting a command without a valid initiator");
1080     return bReturn;
1081   }
1082
1083   {
1084     uint8_t iTries(0), iMaxTries(!command.opcode_set ? 1 : m_iTransmitRetries + 1);
1085     while (!bReturn && ++iTries <= iMaxTries && !m_busDevice->IsUnsupportedFeature(command.opcode))
1086     {
1087       if ((bReturn = m_processor->Transmit(command, bIsReply)) == true)
1088       {
1089         LIB_CEC->AddLog(CEC_LOG_DEBUG, "command transmitted");
1090         if (bExpectResponse)
1091         {
1092           bReturn = m_busDevice->WaitForOpcode(expectedResponse);
1093           LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? "expected response received (%X: %s)" : "expected response not received (%X: %s)", (int)expectedResponse, ToString(expectedResponse));
1094         }
1095       }
1096     }
1097   }
1098
1099   return bReturn;
1100 }
1101
1102 bool CCECCommandHandler::ActivateSource(bool bTransmitDelayedCommandsOnly /* = false */)
1103 {
1104   if (m_busDevice->IsActiveSource() &&
1105       m_busDevice->IsHandledByLibCEC())
1106   {
1107     {
1108       CLockObject lock(m_mutex);
1109       // check if we need to send a delayed source switch
1110       if (bTransmitDelayedCommandsOnly)
1111       {
1112         if (m_iActiveSourcePending == 0 || GetTimeMs() < m_iActiveSourcePending)
1113           return false;
1114
1115         LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
1116       }
1117
1118       // clear previous pending active source command
1119       m_iActiveSourcePending = 0;
1120     }
1121
1122     // update the power state and menu state
1123     m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
1124     m_busDevice->SetMenuState(CEC_MENU_STATE_ACTIVATED); // TODO: LG
1125
1126     // power on the TV
1127     bool bActiveSourceFailed = !m_busDevice->TransmitImageViewOn();
1128
1129     // check if we're allowed to switch sources
1130     bool bSourceSwitchAllowed = SourceSwitchAllowed();
1131     if (!bSourceSwitchAllowed)
1132       LIB_CEC->AddLog(CEC_LOG_DEBUG, "source switch is currently not allowed by command handler");
1133
1134     // switch sources (if allowed)
1135     if (!bActiveSourceFailed && bSourceSwitchAllowed)
1136     {
1137       bActiveSourceFailed = !m_busDevice->TransmitActiveSource(false) ||
1138                             !m_busDevice->TransmitMenuState(CECDEVICE_TV, false);
1139
1140       // update the deck status for playback devices
1141       if (!bActiveSourceFailed)
1142       {
1143         CCECPlaybackDevice *playbackDevice = m_busDevice->AsPlaybackDevice();
1144         if (playbackDevice && SendDeckStatusUpdateOnActiveSource())
1145           bActiveSourceFailed = !playbackDevice->TransmitDeckStatus(CECDEVICE_TV, false);
1146       }
1147     }
1148
1149     // retry later
1150     if (bActiveSourceFailed || !bSourceSwitchAllowed)
1151     {
1152       LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
1153       CLockObject lock(m_mutex);
1154       m_iActiveSourcePending = GetTimeMs() + (int64_t)CEC_ACTIVE_SOURCE_SWITCH_RETRY_TIME_MS;
1155       return false;
1156     }
1157
1158     // mark the handler as initialised
1159     CLockObject lock(m_mutex);
1160     m_bHandlerInited = true;
1161   }
1162   return true;
1163 }
1164
1165 void CCECCommandHandler::ScheduleActivateSource(uint64_t iDelay)
1166 {
1167   CLockObject lock(m_mutex);
1168   m_iActiveSourcePending = GetTimeMs() + iDelay;
1169 }