src/lib/devices/CECBusDevice.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 "CECBusDevice.h"
  35
  36 #include "lib/CECProcessor.h"
  37 #include "lib/CECClient.h"
  38 #include "lib/implementations/ANCommandHandler.h"
  39 #include "lib/implementations/CECCommandHandler.h"
  40 #include "lib/implementations/SLCommandHandler.h"
  41 #include "lib/implementations/VLCommandHandler.h"
  42 #include "lib/LibCEC.h"
  43 #include "lib/CECTypeUtils.h"
  44 #include "lib/platform/util/timeutils.h"
  45 #include "lib/platform/util/util.h"
  46
  47 #include "CECAudioSystem.h"
  48 #include "CECPlaybackDevice.h"
  49 #include "CECRecordingDevice.h"
  50 #include "CECTuner.h"
  51 #include "CECTV.h"
  52
  53 using namespace std;
  54 using namespace CEC;
  55 using namespace PLATFORM;
  56
  57 #define LIB_CEC     m_processor->GetLib()
  58 #define ToString(p) CCECTypeUtils::ToString(p)
  59
  60 CCECBusDevice::CCECBusDevice(CCECProcessor *processor, cec_logical_address iLogicalAddress, uint16_t iPhysicalAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */) :
  61   m_type                  (CEC_DEVICE_TYPE_RESERVED),
  62   m_iPhysicalAddress      (iPhysicalAddress),
  63   m_iStreamPath           (CEC_INVALID_PHYSICAL_ADDRESS),
  64   m_iLogicalAddress       (iLogicalAddress),
  65   m_powerStatus           (CEC_POWER_STATUS_UNKNOWN),
  66   m_processor             (processor),
  67   m_vendor                (CEC_VENDOR_UNKNOWN),
  68   m_bReplaceHandler       (false),
  69   m_menuState             (CEC_MENU_STATE_ACTIVATED),
  70   m_bActiveSource         (false),
  71   m_iLastActive           (0),
  72   m_iLastPowerStateUpdate (0),
  73   m_cecVersion            (CEC_VERSION_UNKNOWN),
  74   m_deviceStatus          (CEC_DEVICE_STATUS_UNKNOWN),
  75   m_iHandlerUseCount      (0),
  76   m_bAwaitingReceiveFailed(false),
  77   m_bVendorIdRequested    (false),
  78   m_waitForResponse       (new CWaitForResponse)
  79 {
  80   m_handler = new CCECCommandHandler(this);
  81
  82   for (unsigned int iPtr = 0; iPtr < 4; iPtr++)
  83     m_menuLanguage.language[iPtr] = '?';
  84   m_menuLanguage.language[3] = 0;
  85   m_menuLanguage.device = iLogicalAddress;
  86
  87   m_strDeviceName = ToString(m_iLogicalAddress);
  88 }
  89
  90 CCECBusDevice::~CCECBusDevice(void)
  91 {
  92   DELETE_AND_NULL(m_handler);
  93   DELETE_AND_NULL(m_waitForResponse);
  94 }
  95
  96 bool CCECBusDevice::ReplaceHandler(bool bActivateSource /* = true */)
  97 {
  98   if (m_iLogicalAddress == CECDEVICE_BROADCAST)
  99     return false;
 100
 101   bool bInitHandler(false);
 102   {
 103     CLockObject lock(m_mutex);
 104     CLockObject handlerLock(m_handlerMutex);
 105     if (m_iHandlerUseCount > 0)
 106       return false;
 107
 108     MarkBusy();
 109
 110     if (m_vendor != m_handler->GetVendorId())
 111     {
 112       if (CCECCommandHandler::HasSpecificHandler(m_vendor))
 113       {
 114         LIB_CEC->AddLog(CEC_LOG_DEBUG, "replacing the command handler for device '%s' (%x)", GetLogicalAddressName(), GetLogicalAddress());
 115
 116         int32_t iTransmitTimeout     = m_handler->m_iTransmitTimeout;
 117         int32_t iTransmitWait        = m_handler->m_iTransmitWait;
 118         int8_t  iTransmitRetries     = m_handler->m_iTransmitRetries;
 119         int64_t iActiveSourcePending = m_handler->m_iActiveSourcePending;
 120
 121         DELETE_AND_NULL(m_handler);
 122
 123         switch (m_vendor)
 124         {
 125         case CEC_VENDOR_SAMSUNG:
 126           m_handler = new CANCommandHandler(this, iTransmitTimeout, iTransmitWait, iTransmitRetries, iActiveSourcePending);
 127           break;
 128         case CEC_VENDOR_LG:
 129           m_handler = new CSLCommandHandler(this, iTransmitTimeout, iTransmitWait, iTransmitRetries, iActiveSourcePending);
 130           break;
 131         case CEC_VENDOR_PANASONIC:
 132           m_handler = new CVLCommandHandler(this, iTransmitTimeout, iTransmitWait, iTransmitRetries, iActiveSourcePending);
 133           break;
 134         default:
 135           m_handler = new CCECCommandHandler(this, iTransmitTimeout, iTransmitWait, iTransmitRetries, iActiveSourcePending);
 136           break;
 137         }
 138
 139         m_handler->SetVendorId(m_vendor);
 140         bInitHandler = true;
 141       }
 142     }
 143   }
 144
 145   if (bInitHandler)
 146   {
 147     CCECBusDevice *primary = GetProcessor()->GetPrimaryDevice();
 148     if (primary->GetLogicalAddress() != CECDEVICE_UNREGISTERED)
 149     {
 150       m_handler->InitHandler();
 151
 152       if (bActivateSource && IsHandledByLibCEC() && IsActiveSource())
 153         m_handler->ActivateSource();
 154     }
 155   }
 156
 157   MarkReady();
 158
 159   return true;
 160 }
 161
 162 CCECCommandHandler *CCECBusDevice::GetHandler(void)
 163 {
 164   ReplaceHandler(false);
 165   MarkBusy();
 166   return m_handler;
 167 }
 168
 169 bool CCECBusDevice::HandleCommand(const cec_command &command)
 170 {
 171   bool bHandled(false);
 172
 173   /* update "last active" */
 174   {
 175     CLockObject lock(m_mutex);
 176     m_iLastActive = GetTimeMs();
 177     MarkBusy();
 178   }
 179
 180   /* handle the command */
 181   bHandled = m_handler->HandleCommand(command);
 182
 183   /* change status to present */
 184   if (bHandled && GetLogicalAddress() != CECDEVICE_BROADCAST)
 185   {
 186     CLockObject lock(m_mutex);
 187     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 188     {
 189       if (m_deviceStatus != CEC_DEVICE_STATUS_PRESENT)
 190         LIB_CEC->AddLog(CEC_LOG_DEBUG, "device %s (%x) status changed to present after command %s", GetLogicalAddressName(), (uint8_t)GetLogicalAddress(), ToString(command.opcode));
 191       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 192     }
 193   }
 194
 195   MarkReady();
 196   return bHandled;
 197 }
 198
 199 const char* CCECBusDevice::GetLogicalAddressName(void) const
 200 {
 201   return ToString(m_iLogicalAddress);
 202 }
 203
 204 bool CCECBusDevice::IsPresent(void)
 205 {
 206   CLockObject lock(m_mutex);
 207   return m_deviceStatus == CEC_DEVICE_STATUS_PRESENT;
 208 }
 209
 210 bool CCECBusDevice::IsHandledByLibCEC(void)
 211 {
 212   CLockObject lock(m_mutex);
 213   return m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC;
 214 }
 215
 216 void CCECBusDevice::SetUnsupportedFeature(cec_opcode opcode)
 217 {
 218   // some commands should never be marked as unsupported
 219   if (opcode == CEC_OPCODE_VENDOR_COMMAND ||
 220       opcode == CEC_OPCODE_VENDOR_COMMAND_WITH_ID ||
 221       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN ||
 222       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP ||
 223       opcode == CEC_OPCODE_ABORT ||
 224       opcode == CEC_OPCODE_FEATURE_ABORT ||
 225       opcode == CEC_OPCODE_NONE)
 226     return;
 227
 228   {
 229     CLockObject lock(m_mutex);
 230     if (m_unsupportedFeatures.find(opcode) == m_unsupportedFeatures.end())
 231     {
 232       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking opcode '%s' as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 233       m_unsupportedFeatures.insert(opcode);
 234     }
 235   }
 236
 237   // signal threads that are waiting for a reponse
 238   MarkBusy();
 239   SignalOpcode(cec_command::GetResponseOpcode(opcode));
 240   MarkReady();
 241 }
 242
 243 bool CCECBusDevice::IsUnsupportedFeature(cec_opcode opcode)
 244 {
 245   CLockObject lock(m_mutex);
 246   bool bUnsupported = (m_unsupportedFeatures.find(opcode) != m_unsupportedFeatures.end());
 247   if (bUnsupported)
 248     LIB_CEC->AddLog(CEC_LOG_DEBUG, "'%s' is marked as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 249   return bUnsupported;
 250 }
 251
 252 bool CCECBusDevice::TransmitKeypress(const cec_logical_address initiator, cec_user_control_code key, bool bWait /* = true */)
 253 {
 254   MarkBusy();
 255   bool bReturn = m_handler->TransmitKeypress(initiator, m_iLogicalAddress, key, bWait);
 256   MarkReady();
 257   return bReturn;
 258 }
 259
 260 bool CCECBusDevice::TransmitKeyRelease(const cec_logical_address initiator, bool bWait /* = true */)
 261 {
 262   MarkBusy();
 263   bool bReturn = m_handler->TransmitKeyRelease(initiator, m_iLogicalAddress, bWait);
 264   MarkReady();
 265   return bReturn;
 266 }
 267
 268 cec_version CCECBusDevice::GetCecVersion(const cec_logical_address initiator, bool bUpdate /* = false */)
 269 {
 270   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 271   bool bRequestUpdate(false);
 272   {
 273     CLockObject lock(m_mutex);
 274     bRequestUpdate = bIsPresent &&
 275         (bUpdate || m_cecVersion == CEC_VERSION_UNKNOWN);
 276   }
 277
 278   if (bRequestUpdate)
 279   {
 280     CheckVendorIdRequested(initiator);
 281     RequestCecVersion(initiator);
 282   }
 283
 284   CLockObject lock(m_mutex);
 285   return m_cecVersion;
 286 }
 287
 288 void CCECBusDevice::SetCecVersion(const cec_version newVersion)
 289 {
 290   CLockObject lock(m_mutex);
 291   if (m_cecVersion != newVersion)
 292     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): CEC version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(newVersion));
 293   m_cecVersion = newVersion;
 294 }
 295
 296 bool CCECBusDevice::RequestCecVersion(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 297 {
 298   bool bReturn(false);
 299
 300   if (!IsHandledByLibCEC() &&
 301       !IsUnsupportedFeature(CEC_OPCODE_GET_CEC_VERSION))
 302   {
 303     MarkBusy();
 304     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting CEC version of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 305     bReturn = m_handler->TransmitRequestCecVersion(initiator, m_iLogicalAddress, bWaitForResponse);
 306     MarkReady();
 307   }
 308   return bReturn;
 309 }
 310
 311 bool CCECBusDevice::TransmitCECVersion(const cec_logical_address destination, bool bIsReply)
 312 {
 313   cec_version version;
 314   {
 315     CLockObject lock(m_mutex);
 316     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): cec version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_cecVersion));
 317     version = m_cecVersion;
 318   }
 319
 320   MarkBusy();
 321   bool bReturn = m_handler->TransmitCECVersion(m_iLogicalAddress, destination, version, bIsReply);
 322   MarkReady();
 323   return bReturn;
 324 }
 325
 326 cec_menu_language &CCECBusDevice::GetMenuLanguage(const cec_logical_address initiator, bool bUpdate /* = false */)
 327 {
 328   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 329   bool bRequestUpdate(false);
 330   {
 331     CLockObject lock(m_mutex);
 332     bRequestUpdate = (bIsPresent &&
 333         (bUpdate || !strcmp(m_menuLanguage.language, "???")));
 334   }
 335
 336   if (bRequestUpdate)
 337   {
 338     CheckVendorIdRequested(initiator);
 339     RequestMenuLanguage(initiator);
 340   }
 341
 342   CLockObject lock(m_mutex);
 343   return m_menuLanguage;
 344 }
 345
 346 void CCECBusDevice::SetMenuLanguage(const char *strLanguage)
 347 {
 348   if (!strLanguage)
 349     return;
 350
 351   CLockObject lock(m_mutex);
 352   if (strcmp(strLanguage, m_menuLanguage.language))
 353   {
 354     memcpy(m_menuLanguage.language, strLanguage, 3);
 355     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu language set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, m_menuLanguage.language);
 356   }
 357 }
 358
 359 void CCECBusDevice::SetMenuLanguage(const cec_menu_language &language)
 360 {
 361   if (language.device == m_iLogicalAddress)
 362     SetMenuLanguage(language.language);
 363 }
 364
 365 bool CCECBusDevice::RequestMenuLanguage(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 366 {
 367   bool bReturn(false);
 368
 369   if (!IsHandledByLibCEC() &&
 370       !IsUnsupportedFeature(CEC_OPCODE_GET_MENU_LANGUAGE))
 371   {
 372     MarkBusy();
 373     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting menu language of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 374     bReturn = m_handler->TransmitRequestMenuLanguage(initiator, m_iLogicalAddress, bWaitForResponse);
 375     MarkReady();
 376   }
 377   return bReturn;
 378 }
 379
 380 bool CCECBusDevice::TransmitSetMenuLanguage(const cec_logical_address destination, bool bIsReply)
 381 {
 382   bool bReturn(false);
 383   cec_menu_language language;
 384   {
 385     CLockObject lock(m_mutex);
 386     language = m_menuLanguage;
 387   }
 388
 389   char lang[3];
 390   {
 391     CLockObject lock(m_mutex);
 392     lang[0] = language.language[0];
 393     lang[1] = language.language[1];
 394     lang[2] = language.language[2];
 395   }
 396
 397   MarkBusy();
 398   if (lang[0] == '?' && lang[1] == '?' && lang[2] == '?')
 399   {
 400     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): menu language feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 401     m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 402     bReturn = true;
 403   }
 404   else
 405   {
 406     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> broadcast (F): menu language '%s'", GetLogicalAddressName(), m_iLogicalAddress, lang);
 407     bReturn = m_handler->TransmitSetMenuLanguage(m_iLogicalAddress, lang, bIsReply);
 408   }
 409   MarkReady();
 410   return bReturn;
 411 }
 412
 413 bool CCECBusDevice::TransmitOSDString(const cec_logical_address destination, cec_display_control duration, const char *strMessage, bool bIsReply)
 414 {
 415   bool bReturn(false);
 416   if (!m_processor->GetDevice(destination)->IsUnsupportedFeature(CEC_OPCODE_SET_OSD_STRING))
 417   {
 418     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): display OSD message '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, strMessage);
 419     MarkBusy();
 420     bReturn = m_handler->TransmitOSDString(m_iLogicalAddress, destination, duration, strMessage, bIsReply);
 421     MarkReady();
 422   }
 423   return bReturn;
 424 }
 425
 426 CStdString CCECBusDevice::GetCurrentOSDName(void)
 427 {
 428   CLockObject lock(m_mutex);
 429   return m_strDeviceName;
 430 }
 431
 432 CStdString CCECBusDevice::GetOSDName(const cec_logical_address initiator, bool bUpdate /* = false */)
 433 {
 434   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 435   bool bRequestUpdate(false);
 436   {
 437     CLockObject lock(m_mutex);
 438     bRequestUpdate = bIsPresent &&
 439         (bUpdate || m_strDeviceName.Equals(ToString(m_iLogicalAddress))) &&
 440         m_type != CEC_DEVICE_TYPE_TV;
 441   }
 442
 443   if (bRequestUpdate)
 444   {
 445     CheckVendorIdRequested(initiator);
 446     RequestOSDName(initiator);
 447   }
 448
 449   CLockObject lock(m_mutex);
 450   return m_strDeviceName;
 451 }
 452
 453 void CCECBusDevice::SetOSDName(CStdString strName)
 454 {
 455   CLockObject lock(m_mutex);
 456   if (m_strDeviceName != strName)
 457   {
 458     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): osd name set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, strName.c_str());
 459     m_strDeviceName = strName;
 460   }
 461 }
 462
 463 bool CCECBusDevice::RequestOSDName(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 464 {
 465   bool bReturn(false);
 466
 467   if (!IsHandledByLibCEC() &&
 468       !IsUnsupportedFeature(CEC_OPCODE_GIVE_OSD_NAME))
 469   {
 470     MarkBusy();
 471     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting OSD name of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 472     bReturn = m_handler->TransmitRequestOSDName(initiator, m_iLogicalAddress, bWaitForResponse);
 473     MarkReady();
 474   }
 475   return bReturn;
 476 }
 477
 478 bool CCECBusDevice::TransmitOSDName(const cec_logical_address destination, bool bIsReply)
 479 {
 480   CStdString strDeviceName;
 481   {
 482     CLockObject lock(m_mutex);
 483     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): OSD name '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, m_strDeviceName.c_str());
 484     strDeviceName = m_strDeviceName;
 485   }
 486
 487   MarkBusy();
 488   bool bReturn = m_handler->TransmitOSDName(m_iLogicalAddress, destination, strDeviceName, bIsReply);
 489   MarkReady();
 490   return bReturn;
 491 }
 492
 493 bool CCECBusDevice::HasValidPhysicalAddress(void)
 494 {
 495   CLockObject lock(m_mutex);
 496   return CLibCEC::IsValidPhysicalAddress(m_iPhysicalAddress);
 497 }
 498
 499 uint16_t CCECBusDevice::GetCurrentPhysicalAddress(void)
 500 {
 501   CLockObject lock(m_mutex);
 502   return m_iPhysicalAddress;
 503 }
 504
 505 uint16_t CCECBusDevice::GetPhysicalAddress(const cec_logical_address initiator, bool bSuppressUpdate /* = false */)
 506 {
 507   if (!bSuppressUpdate)
 508   {
 509     bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 510     bool bRequestUpdate(false);
 511     {
 512       CLockObject lock(m_mutex);
 513       bRequestUpdate = bIsPresent && m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS;
 514     }
 515
 516     if (bRequestUpdate)
 517     {
 518       CheckVendorIdRequested(initiator);
 519       if (!RequestPhysicalAddress(initiator))
 520         LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to request the physical address");
 521     }
 522   }
 523
 524   CLockObject lock(m_mutex);
 525   return m_iPhysicalAddress;
 526 }
 527
 528 bool CCECBusDevice::SetPhysicalAddress(uint16_t iNewAddress)
 529 {
 530   CLockObject lock(m_mutex);
 531   if (iNewAddress > 0 && m_iPhysicalAddress != iNewAddress)
 532   {
 533     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): physical address changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress, iNewAddress);
 534     m_iPhysicalAddress = iNewAddress;
 535   }
 536   return true;
 537 }
 538
 539 bool CCECBusDevice::RequestPhysicalAddress(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 540 {
 541   bool bReturn(false);
 542
 543   if (!IsHandledByLibCEC())
 544   {
 545     MarkBusy();
 546     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting physical address of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 547     bReturn = m_handler->TransmitRequestPhysicalAddress(initiator, m_iLogicalAddress, bWaitForResponse);
 548     MarkReady();
 549   }
 550   return bReturn;
 551 }
 552
 553 bool CCECBusDevice::TransmitPhysicalAddress(bool bIsReply)
 554 {
 555   uint16_t iPhysicalAddress;
 556   cec_device_type type;
 557   {
 558     CLockObject lock(m_mutex);
 559     if (m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS)
 560       return false;
 561
 562     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> broadcast (F): physical adddress %4x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 563     iPhysicalAddress = m_iPhysicalAddress;
 564     type = m_type;
 565   }
 566
 567   MarkBusy();
 568   bool bReturn = m_handler->TransmitPhysicalAddress(m_iLogicalAddress, iPhysicalAddress, type, bIsReply);
 569   MarkReady();
 570   return bReturn;
 571 }
 572
 573 cec_power_status CCECBusDevice::GetCurrentPowerStatus(void)
 574 {
 575   CLockObject lock(m_mutex);
 576   return m_powerStatus;
 577 }
 578
 579 cec_power_status CCECBusDevice::GetPowerStatus(const cec_logical_address initiator, bool bUpdate /* = false */)
 580 {
 581   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 582   bool bRequestUpdate(false);
 583   {
 584     CLockObject lock(m_mutex);
 585     bRequestUpdate = (bIsPresent &&
 586         (bUpdate || m_powerStatus == CEC_POWER_STATUS_UNKNOWN ||
 587             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON ||
 588             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY ||
 589             GetTimeMs() - m_iLastPowerStateUpdate >= CEC_POWER_STATE_REFRESH_TIME));
 590   }
 591
 592   if (bRequestUpdate)
 593   {
 594     CheckVendorIdRequested(initiator);
 595     RequestPowerStatus(initiator);
 596   }
 597
 598   CLockObject lock(m_mutex);
 599   return m_powerStatus;
 600 }
 601
 602 void CCECBusDevice::SetPowerStatus(const cec_power_status powerStatus)
 603 {
 604   CLockObject lock(m_mutex);
 605   if (m_powerStatus != powerStatus)
 606   {
 607     m_iLastPowerStateUpdate = GetTimeMs();
 608     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): power status changed from '%s' to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_powerStatus), ToString(powerStatus));
 609     m_powerStatus = powerStatus;
 610   }
 611 }
 612
 613 bool CCECBusDevice::RequestPowerStatus(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 614 {
 615   bool bReturn(false);
 616
 617   if (!IsHandledByLibCEC() &&
 618       !IsUnsupportedFeature(CEC_OPCODE_GIVE_DEVICE_POWER_STATUS))
 619   {
 620     MarkBusy();
 621     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting power status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 622     bReturn = m_handler->TransmitRequestPowerStatus(initiator, m_iLogicalAddress, bWaitForResponse);
 623     MarkReady();
 624   }
 625   return bReturn;
 626 }
 627
 628 bool CCECBusDevice::TransmitPowerState(const cec_logical_address destination, bool bIsReply)
 629 {
 630   cec_power_status state;
 631   {
 632     CLockObject lock(m_mutex);
 633     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_powerStatus));
 634     state = m_powerStatus;
 635   }
 636
 637   MarkBusy();
 638   bool bReturn = m_handler->TransmitPowerState(m_iLogicalAddress, destination, state, bIsReply);
 639   MarkReady();
 640   return bReturn;
 641 }
 642
 643 cec_vendor_id CCECBusDevice::GetCurrentVendorId(void)
 644 {
 645   CLockObject lock(m_mutex);
 646   return m_vendor;
 647 }
 648
 649 cec_vendor_id CCECBusDevice::GetVendorId(const cec_logical_address initiator, bool bUpdate /* = false */)
 650 {
 651   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 652   bool bRequestUpdate(false);
 653   {
 654     CLockObject lock(m_mutex);
 655     bRequestUpdate = (bIsPresent &&
 656         (bUpdate || m_vendor == CEC_VENDOR_UNKNOWN));
 657   }
 658
 659   if (bRequestUpdate)
 660     RequestVendorId(initiator);
 661
 662   CLockObject lock(m_mutex);
 663   return m_vendor;
 664 }
 665
 666 const char *CCECBusDevice::GetVendorName(const cec_logical_address initiator, bool bUpdate /* = false */)
 667 {
 668   return ToString(GetVendorId(initiator, bUpdate));
 669 }
 670
 671 bool CCECBusDevice::SetVendorId(uint64_t iVendorId)
 672 {
 673   bool bVendorChanged(false);
 674
 675   {
 676     CLockObject lock(m_mutex);
 677     bVendorChanged = (m_vendor != (cec_vendor_id)iVendorId);
 678     m_vendor = (cec_vendor_id)iVendorId;
 679   }
 680
 681   if (bVendorChanged)
 682     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): vendor = %s (%06x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_vendor), m_vendor);
 683
 684   return bVendorChanged;
 685 }
 686
 687 bool CCECBusDevice::RequestVendorId(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 688 {
 689   bool bReturn(false);
 690
 691   if (!IsHandledByLibCEC() && initiator != CECDEVICE_UNKNOWN)
 692   {
 693     MarkBusy();
 694     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting vendor ID of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 695     bReturn = m_handler->TransmitRequestVendorId(initiator, m_iLogicalAddress, bWaitForResponse);
 696     MarkReady();
 697
 698     if (bWaitForResponse)
 699       ReplaceHandler(true);
 700   }
 701   return bReturn;
 702 }
 703
 704 bool CCECBusDevice::TransmitVendorID(const cec_logical_address destination, bool bSendAbort, bool bIsReply)
 705 {
 706   bool bReturn(false);
 707   uint64_t iVendorId;
 708   {
 709     CLockObject lock(m_mutex);
 710     iVendorId = (uint64_t)m_vendor;
 711   }
 712
 713   MarkBusy();
 714   if (iVendorId == CEC_VENDOR_UNKNOWN)
 715   {
 716     if (bSendAbort)
 717     {
 718       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): vendor id feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 719       m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 720       bReturn = true;
 721     }
 722   }
 723   else
 724   {
 725     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): vendor id %s (%x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString((cec_vendor_id)iVendorId), iVendorId);
 726     bReturn = m_handler->TransmitVendorID(m_iLogicalAddress, iVendorId, bIsReply);
 727   }
 728   MarkReady();
 729   return bReturn;
 730 }
 731
 732 cec_bus_device_status CCECBusDevice::GetStatus(bool bForcePoll /* = false */, bool bSuppressPoll /* = false */)
 733 {
 734   if (m_iLogicalAddress == CECDEVICE_BROADCAST)
 735     return CEC_DEVICE_STATUS_NOT_PRESENT;
 736
 737   cec_bus_device_status status(CEC_DEVICE_STATUS_UNKNOWN);
 738   bool bNeedsPoll(false);
 739
 740   {
 741     CLockObject lock(m_mutex);
 742     status = m_deviceStatus;
 743     bNeedsPoll = !bSuppressPoll &&
 744         (bForcePoll || m_deviceStatus == CEC_DEVICE_STATUS_UNKNOWN);
 745   }
 746
 747   if (bNeedsPoll)
 748   {
 749     bool bPollAcked(false);
 750     if (bNeedsPoll && NeedsPoll())
 751       bPollAcked = m_processor->PollDevice(m_iLogicalAddress);
 752
 753     status = bPollAcked ? CEC_DEVICE_STATUS_PRESENT : CEC_DEVICE_STATUS_NOT_PRESENT;
 754     SetDeviceStatus(status);
 755   }
 756
 757   return status;
 758 }
 759
 760 void CCECBusDevice::SetDeviceStatus(const cec_bus_device_status newStatus, cec_version libCECSpecVersion /* = CEC_VERSION_1_4 */)
 761 {
 762   {
 763     CLockObject lock(m_mutex);
 764     switch (newStatus)
 765     {
 766     case CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC:
 767       if (m_deviceStatus != newStatus)
 768         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'handled by libCEC'", GetLogicalAddressName(), m_iLogicalAddress);
 769       SetPowerStatus   (CEC_POWER_STATUS_ON);
 770       SetVendorId      (CEC_VENDOR_UNKNOWN);
 771       SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 772       SetCecVersion    (libCECSpecVersion);
 773       SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 774       MarkAsInactiveSource();
 775       m_iLastActive   = 0;
 776       m_deviceStatus  = newStatus;
 777       break;
 778     case CEC_DEVICE_STATUS_PRESENT:
 779       if (m_deviceStatus != newStatus)
 780         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'present'", GetLogicalAddressName(), m_iLogicalAddress);
 781       m_deviceStatus = newStatus;
 782       break;
 783     case CEC_DEVICE_STATUS_NOT_PRESENT:
 784       if (m_deviceStatus != newStatus)
 785       {
 786         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'not present'", GetLogicalAddressName(), m_iLogicalAddress);
 787         ResetDeviceStatus();
 788         m_deviceStatus = newStatus;
 789       }
 790       break;
 791     default:
 792       ResetDeviceStatus();
 793       break;
 794     }
 795   }
 796 }
 797
 798 void CCECBusDevice::ResetDeviceStatus(void)
 799 {
 800   CLockObject lock(m_mutex);
 801   SetPowerStatus   (CEC_POWER_STATUS_UNKNOWN);
 802   SetVendorId      (CEC_VENDOR_UNKNOWN);
 803   SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 804   SetCecVersion    (CEC_VERSION_UNKNOWN);
 805   SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 806   SetOSDName       (ToString(m_iLogicalAddress));
 807   MarkAsInactiveSource();
 808
 809   m_iLastActive = 0;
 810   m_bVendorIdRequested = false;
 811   m_unsupportedFeatures.clear();
 812   m_waitForResponse->Clear();
 813
 814   if (m_deviceStatus != CEC_DEVICE_STATUS_UNKNOWN)
 815     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'unknown'", GetLogicalAddressName(), m_iLogicalAddress);
 816   m_deviceStatus = CEC_DEVICE_STATUS_UNKNOWN;
 817 }
 818
 819 bool CCECBusDevice::TransmitPoll(const cec_logical_address dest, bool bIsReply)
 820 {
 821   bool bReturn(false);
 822   cec_logical_address destination(dest);
 823   if (destination == CECDEVICE_UNKNOWN)
 824     destination = m_iLogicalAddress;
 825
 826   CCECBusDevice *destDevice = m_processor->GetDevice(destination);
 827   if (destDevice->m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 828     return bReturn;
 829
 830   MarkBusy();
 831   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): POLL", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 832   bReturn = m_handler->TransmitPoll(m_iLogicalAddress, destination, bIsReply);
 833   LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? ">> POLL sent" : ">> POLL not sent");
 834
 835   CLockObject lock(m_mutex);
 836   if (bReturn)
 837   {
 838     m_iLastActive = GetTimeMs();
 839     SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
 840   }
 841   else
 842     SetDeviceStatus(CEC_DEVICE_STATUS_NOT_PRESENT);
 843
 844   MarkReady();
 845   return bReturn;
 846 }
 847
 848 void CCECBusDevice::HandlePoll(const cec_logical_address destination)
 849 {
 850   if (destination >= 0 && destination < CECDEVICE_BROADCAST)
 851   {
 852     CCECBusDevice *device = m_processor->GetDevice(destination);
 853     if (device)
 854       device->HandlePollFrom(m_iLogicalAddress);
 855   }
 856 }
 857
 858 void CCECBusDevice::HandlePollFrom(const cec_logical_address initiator)
 859 {
 860   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< POLL: %s (%x) -> %s (%x)", ToString(initiator), initiator, ToString(m_iLogicalAddress), m_iLogicalAddress);
 861   m_bAwaitingReceiveFailed = true;
 862 }
 863
 864 bool CCECBusDevice::HandleReceiveFailed(void)
 865 {
 866   bool bReturn = m_bAwaitingReceiveFailed;
 867   m_bAwaitingReceiveFailed = false;
 868   return bReturn;
 869 }
 870
 871 cec_menu_state CCECBusDevice::GetMenuState(const cec_logical_address UNUSED(initiator))
 872 {
 873   CLockObject lock(m_mutex);
 874   return m_menuState;
 875 }
 876
 877 void CCECBusDevice::SetMenuState(const cec_menu_state state)
 878 {
 879   CLockObject lock(m_mutex);
 880   if (m_menuState != state)
 881   {
 882     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu state set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_menuState));
 883     m_menuState = state;
 884   }
 885 }
 886
 887 bool CCECBusDevice::TransmitMenuState(const cec_logical_address dest, bool bIsReply)
 888 {
 889   cec_menu_state menuState;
 890   {
 891     CLockObject lock(m_mutex);
 892     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): menu state '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_menuState));
 893     menuState = m_menuState;
 894   }
 895
 896   MarkBusy();
 897   bool bReturn = m_handler->TransmitMenuState(m_iLogicalAddress, dest, menuState, bIsReply);
 898   MarkReady();
 899   return bReturn;
 900 }
 901
 902 bool CCECBusDevice::ActivateSource(uint64_t iDelay /* = 0 */)
 903 {
 904   MarkAsActiveSource();
 905   MarkBusy();
 906   bool bReturn(true);
 907   if (iDelay == 0)
 908   {
 909     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending active source message for '%s'", ToString(m_iLogicalAddress));
 910     bReturn = m_handler->ActivateSource();
 911   }
 912   else
 913   {
 914     LIB_CEC->AddLog(CEC_LOG_DEBUG, "scheduling active source message for '%s'", ToString(m_iLogicalAddress));
 915     m_handler->ScheduleActivateSource(iDelay);
 916   }
 917   MarkReady();
 918   return bReturn;
 919 }
 920
 921 bool CCECBusDevice::RequestActiveSource(bool bWaitForResponse /* = true */)
 922 {
 923   bool bReturn(false);
 924
 925   if (IsHandledByLibCEC())
 926   {
 927     MarkBusy();
 928     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting active source");
 929
 930     bReturn = m_handler->TransmitRequestActiveSource(m_iLogicalAddress, bWaitForResponse);
 931     MarkReady();
 932   }
 933   return bReturn;
 934 }
 935
 936 void CCECBusDevice::MarkAsActiveSource(void)
 937 {
 938   bool bWasActivated(false);
 939
 940   // set the power status to powered on
 941   SetPowerStatus(CEC_POWER_STATUS_ON);
 942
 943   // mark this device as active source
 944   {
 945     CLockObject lock(m_mutex);
 946     if (!m_bActiveSource)
 947     {
 948       LIB_CEC->AddLog(CEC_LOG_DEBUG, "making %s (%x) the active source", GetLogicalAddressName(), m_iLogicalAddress);
 949       bWasActivated = true;
 950     }
 951     else
 952       LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%x) was already marked as active source", GetLogicalAddressName(), m_iLogicalAddress);
 953
 954     m_bActiveSource = true;
 955   }
 956
 957   // mark other devices as inactive sources
 958   CECDEVICEVEC devices;
 959   m_processor->GetDevices()->Get(devices);
 960   for (CECDEVICEVEC::iterator it = devices.begin(); it != devices.end(); it++)
 961     if ((*it)->GetLogicalAddress() != m_iLogicalAddress)
 962       (*it)->MarkAsInactiveSource();
 963
 964   if (bWasActivated)
 965   {
 966     CCECClient *client = GetClient();
 967     if (client)
 968       client->SourceActivated(m_iLogicalAddress);
 969   }
 970 }
 971
 972 void CCECBusDevice::MarkAsInactiveSource(void)
 973 {
 974   bool bWasDeactivated(false);
 975   {
 976     CLockObject lock(m_mutex);
 977     if (m_bActiveSource)
 978     {
 979       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking %s (%X) as inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 980       bWasDeactivated = true;
 981     }
 982     m_bActiveSource = false;
 983   }
 984
 985   if (bWasDeactivated)
 986   {
 987     CCECClient *client = GetClient();
 988     if (client)
 989       client->SourceDeactivated(m_iLogicalAddress);
 990   }
 991 }
 992
 993 bool CCECBusDevice::TransmitActiveSource(bool bIsReply)
 994 {
 995   bool bSendActiveSource(false);
 996   uint16_t iPhysicalAddress(CEC_INVALID_PHYSICAL_ADDRESS);
 997
 998   {
 999     CLockObject lock(m_mutex);
1000     if (!HasValidPhysicalAddress())
1001     {
1002       LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X) has an invalid physical address (%04x), not sending active source commands", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
1003       return false;
1004     }
1005
1006     iPhysicalAddress = m_iPhysicalAddress;
1007
1008     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
1009       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
1010     else if (m_bActiveSource)
1011     {
1012       LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): active source (%4x)", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
1013       bSendActiveSource = true;
1014     }
1015     else
1016       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not the active source", GetLogicalAddressName(), m_iLogicalAddress);
1017   }
1018
1019   bool bActiveSourceSent(false);
1020   if (bSendActiveSource)
1021   {
1022     MarkBusy();
1023     bActiveSourceSent = m_handler->TransmitActiveSource(m_iLogicalAddress, iPhysicalAddress, bIsReply);
1024     MarkReady();
1025   }
1026
1027   return bActiveSourceSent;
1028 }
1029
1030 bool CCECBusDevice::TransmitImageViewOn(void)
1031 {
1032   {
1033     CLockObject lock(m_mutex);
1034     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
1035     {
1036       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
1037       return false;
1038     }
1039   }
1040
1041   bool bImageViewOnSent(false);
1042   MarkBusy();
1043   bImageViewOnSent = m_handler->TransmitImageViewOn(m_iLogicalAddress, CECDEVICE_TV);
1044   MarkReady();
1045   return bImageViewOnSent;
1046 }
1047
1048 bool CCECBusDevice::TransmitInactiveSource(void)
1049 {
1050   uint16_t iPhysicalAddress;
1051   {
1052     CLockObject lock(m_mutex);
1053     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): inactive source", GetLogicalAddressName(), m_iLogicalAddress);
1054     iPhysicalAddress = m_iPhysicalAddress;
1055   }
1056
1057   MarkBusy();
1058   bool bReturn = m_handler->TransmitInactiveSource(m_iLogicalAddress, iPhysicalAddress);
1059   MarkReady();
1060   return bReturn;
1061 }
1062
1063 bool CCECBusDevice::TransmitPendingActiveSourceCommands(void)
1064 {
1065   MarkBusy();
1066   bool bReturn = m_handler->ActivateSource(true);
1067   MarkReady();
1068   return bReturn;
1069 }
1070
1071 void CCECBusDevice::SetStreamPath(uint16_t iNewAddress, uint16_t iOldAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */)
1072 {
1073   CLockObject lock(m_mutex);
1074   if (iNewAddress != m_iStreamPath)
1075   {
1076     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): stream path changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, iOldAddress == 0 ? m_iStreamPath : iOldAddress, iNewAddress);
1077     m_iStreamPath = iNewAddress;
1078   }
1079
1080   if (!LIB_CEC->IsValidPhysicalAddress(iNewAddress))
1081     return;
1082
1083   CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
1084   if (device)
1085   {
1086     // if a device is found with the new physical address, mark it as active, which will automatically mark all other devices as inactive
1087     device->MarkAsActiveSource();
1088
1089     // respond with an active source message if this device is handled by libCEC
1090     if (device->IsHandledByLibCEC())
1091       device->TransmitActiveSource(true);
1092   }
1093   else
1094   {
1095     // try to find the device with the old address, and mark it as inactive when found
1096     device = m_processor->GetDeviceByPhysicalAddress(iOldAddress);
1097     if (device)
1098       device->MarkAsInactiveSource();
1099   }
1100 }
1101
1102 bool CCECBusDevice::PowerOn(const cec_logical_address initiator)
1103 {
1104   bool bReturn(false);
1105   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1106
1107   MarkBusy();
1108   cec_power_status currentStatus;
1109   if (m_iLogicalAddress == CECDEVICE_TV ||
1110       ((currentStatus = GetPowerStatus(initiator, false)) != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON &&
1111         currentStatus != CEC_POWER_STATUS_ON))
1112   {
1113     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< powering on '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
1114     bReturn = m_handler->PowerOn(initiator, m_iLogicalAddress);
1115   }
1116   else
1117   {
1118     LIB_CEC->AddLog(CEC_LOG_DEBUG, "'%s' (%X) is already '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(currentStatus));
1119   }
1120
1121   MarkReady();
1122   return bReturn;
1123 }
1124
1125 bool CCECBusDevice::Standby(const cec_logical_address initiator)
1126 {
1127   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1128
1129   LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< putting '%s' (%X) in standby mode", GetLogicalAddressName(), m_iLogicalAddress);
1130   MarkBusy();
1131   bool bReturn = m_handler->TransmitStandby(initiator, m_iLogicalAddress);
1132   MarkReady();
1133   return bReturn;
1134 }
1135
1136 bool CCECBusDevice::NeedsPoll(void)
1137 {
1138   bool bSendPoll(false);
1139   cec_logical_address pollAddress(CECDEVICE_UNKNOWN);
1140   switch (m_iLogicalAddress)
1141   {
1142   case CECDEVICE_PLAYBACKDEVICE3:
1143     pollAddress = CECDEVICE_PLAYBACKDEVICE2;
1144     break;
1145   case CECDEVICE_PLAYBACKDEVICE2:
1146     pollAddress = CECDEVICE_PLAYBACKDEVICE1;
1147     break;
1148   case CECDEVICE_RECORDINGDEVICE3:
1149     pollAddress = CECDEVICE_RECORDINGDEVICE2;
1150     break;
1151   case CECDEVICE_RECORDINGDEVICE2:
1152     pollAddress = CECDEVICE_RECORDINGDEVICE1;
1153     break;
1154   case CECDEVICE_TUNER4:
1155     pollAddress = CECDEVICE_TUNER3;
1156     break;
1157   case CECDEVICE_TUNER3:
1158     pollAddress = CECDEVICE_TUNER2;
1159     break;
1160   case CECDEVICE_TUNER2:
1161     pollAddress = CECDEVICE_TUNER1;
1162     break;
1163   case CECDEVICE_AUDIOSYSTEM:
1164   case CECDEVICE_PLAYBACKDEVICE1:
1165   case CECDEVICE_RECORDINGDEVICE1:
1166   case CECDEVICE_TUNER1:
1167   case CECDEVICE_TV:
1168     bSendPoll = true;
1169     break;
1170   default:
1171     break;
1172   }
1173
1174   if (!bSendPoll && pollAddress != CECDEVICE_UNKNOWN)
1175   {
1176     CCECBusDevice *device = m_processor->GetDevice(pollAddress);
1177     if (device)
1178     {
1179       cec_bus_device_status status = device->GetStatus();
1180       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
1181     }
1182     else
1183     {
1184       bSendPoll = true;
1185     }
1186   }
1187
1188   return bSendPoll;
1189 }
1190
1191 void CCECBusDevice::CheckVendorIdRequested(const cec_logical_address initiator)
1192 {
1193   bool bRequestVendorId(false);
1194   {
1195     CLockObject lock(m_mutex);
1196     bRequestVendorId = !m_bVendorIdRequested;
1197     m_bVendorIdRequested = true;
1198   }
1199
1200   if (bRequestVendorId)
1201   {
1202     ReplaceHandler(false);
1203     GetVendorId(initiator);
1204   }
1205 }
1206 //@}
1207
1208 CCECAudioSystem *CCECBusDevice::AsAudioSystem(void)
1209 {
1210   return AsAudioSystem(this);
1211 }
1212
1213 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(void)
1214 {
1215   return AsPlaybackDevice(this);
1216 }
1217
1218 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(void)
1219 {
1220   return AsRecordingDevice(this);
1221 }
1222
1223 CCECTuner *CCECBusDevice::AsTuner(void)
1224 {
1225   return AsTuner(this);
1226 }
1227
1228 CCECTV *CCECBusDevice::AsTV(void)
1229 {
1230   return AsTV(this);
1231 }
1232
1233 CCECAudioSystem *CCECBusDevice::AsAudioSystem(CCECBusDevice *device)
1234 {
1235   if (device && device->GetType() == CEC_DEVICE_TYPE_AUDIO_SYSTEM)
1236     return static_cast<CCECAudioSystem *>(device);
1237   return NULL;
1238 }
1239
1240 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(CCECBusDevice *device)
1241 {
1242   if (device &&
1243       (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
1244        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
1245     return static_cast<CCECPlaybackDevice *>(device);
1246   return NULL;
1247 }
1248
1249 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(CCECBusDevice *device)
1250 {
1251   if (device && device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
1252     return static_cast<CCECRecordingDevice *>(device);
1253   return NULL;
1254 }
1255
1256 CCECTuner *CCECBusDevice::AsTuner(CCECBusDevice *device)
1257 {
1258   if (device && device->GetType() == CEC_DEVICE_TYPE_TUNER)
1259     return static_cast<CCECTuner *>(device);
1260   return NULL;
1261 }
1262
1263 CCECTV *CCECBusDevice::AsTV(CCECBusDevice *device)
1264 {
1265   if (device && device->GetType() == CEC_DEVICE_TYPE_TV)
1266     return static_cast<CCECTV *>(device);
1267   return NULL;
1268 }
1269
1270 void CCECBusDevice::MarkBusy(void)
1271 {
1272   CLockObject handlerLock(m_handlerMutex);
1273   ++m_iHandlerUseCount;
1274 }
1275
1276 void CCECBusDevice::MarkReady(void)
1277 {
1278   CLockObject handlerLock(m_handlerMutex);
1279   if (m_iHandlerUseCount > 0)
1280     --m_iHandlerUseCount;
1281 }
1282
1283 bool CCECBusDevice::TryLogicalAddress(cec_version libCECSpecVersion /* = CEC_VERSION_1_4 */)
1284 {
1285   LIB_CEC->AddLog(CEC_LOG_DEBUG, "trying logical address '%s'", GetLogicalAddressName());
1286
1287   if (!TransmitPoll(m_iLogicalAddress, false))
1288   {
1289     LIB_CEC->AddLog(CEC_LOG_DEBUG, "using logical address '%s'", GetLogicalAddressName());
1290     SetDeviceStatus(CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC, libCECSpecVersion);
1291
1292     return true;
1293   }
1294
1295   LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address '%s' already taken", GetLogicalAddressName());
1296   SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
1297   return false;
1298 }
1299
1300 CCECClient *CCECBusDevice::GetClient(void)
1301 {
1302   return m_processor->GetClient(m_iLogicalAddress);
1303 }
1304
1305 void CCECBusDevice::SignalOpcode(cec_opcode opcode)
1306 {
1307   m_waitForResponse->Received(opcode);
1308 }
1309
1310 bool CCECBusDevice::WaitForOpcode(cec_opcode opcode)
1311 {
1312   return m_waitForResponse->Wait(opcode);
1313 }