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 "CECBusDevice.h"
  34 #include "../CECProcessor.h"
  35 #include "../implementations/ANCommandHandler.h"
  36 #include "../implementations/CECCommandHandler.h"
  37 #include "../implementations/SLCommandHandler.h"
  38 #include "../implementations/VLCommandHandler.h"
  39 #include "../LibCEC.h"
  40 #include "../platform/util/timeutils.h"
  41
  42 #include "CECAudioSystem.h"
  43 #include "CECPlaybackDevice.h"
  44 #include "CECRecordingDevice.h"
  45 #include "CECTuner.h"
  46 #include "CECTV.h"
  47
  48 using namespace std;
  49 using namespace CEC;
  50 using namespace PLATFORM;
  51
  52 #define LIB_CEC     m_processor->GetLib()
  53 #define ToString(p) LIB_CEC->ToString(p)
  54
  55 CCECBusDevice::CCECBusDevice(CCECProcessor *processor, cec_logical_address iLogicalAddress, uint16_t iPhysicalAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */) :
  56   m_type                  (CEC_DEVICE_TYPE_RESERVED),
  57   m_iPhysicalAddress      (iPhysicalAddress),
  58   m_iStreamPath           (CEC_INVALID_PHYSICAL_ADDRESS),
  59   m_iLogicalAddress       (iLogicalAddress),
  60   m_powerStatus           (CEC_POWER_STATUS_UNKNOWN),
  61   m_processor             (processor),
  62   m_vendor                (CEC_VENDOR_UNKNOWN),
  63   m_bReplaceHandler       (false),
  64   m_menuState             (CEC_MENU_STATE_ACTIVATED),
  65   m_bActiveSource         (false),
  66   m_iLastActive           (0),
  67   m_iLastPowerStateUpdate (0),
  68   m_cecVersion            (CEC_VERSION_UNKNOWN),
  69   m_deviceStatus          (CEC_DEVICE_STATUS_UNKNOWN),
  70   m_iHandlerUseCount      (0),
  71   m_bAwaitingReceiveFailed(false),
  72   m_bVendorIdRequested    (false)
  73 {
  74   m_handler = new CCECCommandHandler(this);
  75
  76   for (unsigned int iPtr = 0; iPtr < 4; iPtr++)
  77     m_menuLanguage.language[iPtr] = '?';
  78   m_menuLanguage.language[3] = 0;
  79   m_menuLanguage.device = iLogicalAddress;
  80
  81   m_strDeviceName = ToString(m_iLogicalAddress);
  82 }
  83
  84 CCECBusDevice::~CCECBusDevice(void)
  85 {
  86   delete m_handler;
  87 }
  88
  89 bool CCECBusDevice::ReplaceHandler(bool bActivateSource /* = true */)
  90 {
  91   bool bInitHandler(false);
  92   {
  93     CTryLockObject lock(m_mutex);
  94     if (!lock.IsLocked())
  95       return false;
  96
  97     CLockObject handlerLock(m_handlerMutex);
  98     if (m_iHandlerUseCount > 0)
  99       return false;
 100
 101     MarkBusy();
 102
 103     if (m_vendor != m_handler->GetVendorId())
 104     {
 105       if (CCECCommandHandler::HasSpecificHandler(m_vendor))
 106       {
 107         LIB_CEC->AddLog(CEC_LOG_DEBUG, "replacing the command handler for device '%s' (%x)", GetLogicalAddressName(), GetLogicalAddress());
 108         delete m_handler;
 109
 110         switch (m_vendor)
 111         {
 112         case CEC_VENDOR_SAMSUNG:
 113           m_handler = new CANCommandHandler(this);
 114           break;
 115         case CEC_VENDOR_LG:
 116           m_handler = new CSLCommandHandler(this);
 117           break;
 118         case CEC_VENDOR_PANASONIC:
 119           m_handler = new CVLCommandHandler(this);
 120           break;
 121         default:
 122           m_handler = new CCECCommandHandler(this);
 123           break;
 124         }
 125
 126         m_handler->SetVendorId(m_vendor);
 127         bInitHandler = true;
 128       }
 129     }
 130   }
 131
 132   if (bInitHandler)
 133   {
 134     m_handler->InitHandler();
 135
 136     if (bActivateSource && IsHandledByLibCEC() && IsActiveSource())
 137       m_handler->ActivateSource();
 138   }
 139
 140   MarkReady();
 141
 142   return true;
 143 }
 144
 145 bool CCECBusDevice::HandleCommand(const cec_command &command)
 146 {
 147   bool bHandled(false);
 148
 149   /* update "last active" */
 150   {
 151     CLockObject lock(m_mutex);
 152     m_iLastActive = GetTimeMs();
 153
 154     /* don't call GetStatus() here, just read the value with the mutex locked */
 155     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC && command.opcode_set == 1)
 156       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 157
 158     MarkBusy();
 159   }
 160
 161   /* handle the command */
 162   bHandled = m_handler->HandleCommand(command);
 163
 164   /* change status to present */
 165   if (bHandled && GetLogicalAddress() != CECDEVICE_BROADCAST)
 166   {
 167     CLockObject lock(m_mutex);
 168     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 169     {
 170       if (m_deviceStatus != CEC_DEVICE_STATUS_PRESENT)
 171         LIB_CEC->AddLog(CEC_LOG_DEBUG, "device %s (%x) status changed to present after command %s", GetLogicalAddressName(), (uint8_t)GetLogicalAddress(), ToString(command.opcode));
 172       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 173     }
 174   }
 175
 176   MarkReady();
 177   return bHandled;
 178 }
 179
 180 const char* CCECBusDevice::GetLogicalAddressName(void) const
 181 {
 182   return ToString(m_iLogicalAddress);
 183 }
 184
 185 bool CCECBusDevice::IsPresent(void)
 186 {
 187   CLockObject lock(m_mutex);
 188   return m_deviceStatus == CEC_DEVICE_STATUS_PRESENT;
 189 }
 190
 191 bool CCECBusDevice::IsHandledByLibCEC(void)
 192 {
 193   CLockObject lock(m_mutex);
 194   return m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC;
 195 }
 196
 197 void CCECBusDevice::SetUnsupportedFeature(cec_opcode opcode)
 198 {
 199   // some commands should never be marked as unsupported
 200   if (opcode == CEC_OPCODE_VENDOR_COMMAND ||
 201       opcode == CEC_OPCODE_VENDOR_COMMAND_WITH_ID ||
 202       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN ||
 203       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP ||
 204       opcode == CEC_OPCODE_ABORT ||
 205       opcode == CEC_OPCODE_FEATURE_ABORT ||
 206       opcode == CEC_OPCODE_NONE)
 207     return;
 208
 209   {
 210     CLockObject lock(m_mutex);
 211     if (m_unsupportedFeatures.find(opcode) == m_unsupportedFeatures.end())
 212     {
 213       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking opcode '%s' as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 214       m_unsupportedFeatures.insert(opcode);
 215     }
 216   }
 217
 218   // signal threads that are waiting for a reponse
 219   MarkBusy();
 220   m_handler->SignalOpcode(cec_command::GetResponseOpcode(opcode));
 221   MarkReady();
 222 }
 223
 224 bool CCECBusDevice::IsUnsupportedFeature(cec_opcode opcode)
 225 {
 226   CLockObject lock(m_mutex);
 227   bool bUnsupported = (m_unsupportedFeatures.find(opcode) != m_unsupportedFeatures.end());
 228   if (bUnsupported)
 229     LIB_CEC->AddLog(CEC_LOG_DEBUG, "'%s' is marked as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 230   return bUnsupported;
 231 }
 232
 233 bool CCECBusDevice::TransmitKeypress(const cec_logical_address initiator, cec_user_control_code key, bool bWait /* = true */)
 234 {
 235   MarkBusy();
 236   bool bReturn = m_handler->TransmitKeypress(initiator, m_iLogicalAddress, key, bWait);
 237   MarkReady();
 238   return bReturn;
 239 }
 240
 241 bool CCECBusDevice::TransmitKeyRelease(const cec_logical_address initiator, bool bWait /* = true */)
 242 {
 243   MarkBusy();
 244   bool bReturn = m_handler->TransmitKeyRelease(initiator, m_iLogicalAddress, bWait);
 245   MarkReady();
 246   return bReturn;
 247 }
 248
 249 cec_version CCECBusDevice::GetCecVersion(const cec_logical_address initiator, bool bUpdate /* = false */)
 250 {
 251   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 252   bool bRequestUpdate(false);
 253   {
 254     CLockObject lock(m_mutex);
 255     bRequestUpdate = bIsPresent &&
 256         (bUpdate || m_cecVersion == CEC_VERSION_UNKNOWN);
 257   }
 258
 259   if (bRequestUpdate)
 260   {
 261     CheckVendorIdRequested(initiator);
 262     RequestCecVersion(initiator);
 263   }
 264
 265   CLockObject lock(m_mutex);
 266   return m_cecVersion;
 267 }
 268
 269 void CCECBusDevice::SetCecVersion(const cec_version newVersion)
 270 {
 271   CLockObject lock(m_mutex);
 272   if (m_cecVersion != newVersion)
 273     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): CEC version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(newVersion));
 274   m_cecVersion = newVersion;
 275 }
 276
 277 bool CCECBusDevice::RequestCecVersion(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 278 {
 279   bool bReturn(false);
 280
 281   if (!IsHandledByLibCEC() &&
 282       !IsUnsupportedFeature(CEC_OPCODE_GET_CEC_VERSION))
 283   {
 284     MarkBusy();
 285     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting CEC version of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 286     bReturn = m_handler->TransmitRequestCecVersion(initiator, m_iLogicalAddress, bWaitForResponse);
 287     MarkReady();
 288   }
 289   return bReturn;
 290 }
 291
 292 bool CCECBusDevice::TransmitCECVersion(const cec_logical_address destination)
 293 {
 294   cec_version version;
 295   {
 296     CLockObject lock(m_mutex);
 297     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): cec version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_cecVersion));
 298     version = m_cecVersion;
 299   }
 300
 301   MarkBusy();
 302   bool bReturn = m_handler->TransmitCECVersion(m_iLogicalAddress, destination, version);
 303   MarkReady();
 304   return bReturn;
 305 }
 306
 307 cec_menu_language &CCECBusDevice::GetMenuLanguage(const cec_logical_address initiator, bool bUpdate /* = false */)
 308 {
 309   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 310   bool bRequestUpdate(false);
 311   {
 312     CLockObject lock(m_mutex);
 313     bRequestUpdate = (bIsPresent &&
 314         (bUpdate || !strcmp(m_menuLanguage.language, "???")));
 315   }
 316
 317   if (bRequestUpdate)
 318   {
 319     CheckVendorIdRequested(initiator);
 320     RequestMenuLanguage(initiator);
 321   }
 322
 323   CLockObject lock(m_mutex);
 324   return m_menuLanguage;
 325 }
 326
 327 void CCECBusDevice::SetMenuLanguage(const char *strLanguage)
 328 {
 329   if (!strLanguage)
 330     return;
 331
 332   CLockObject lock(m_mutex);
 333   if (strcmp(strLanguage, m_menuLanguage.language))
 334   {
 335     memcpy(m_menuLanguage.language, strLanguage, 3);
 336     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu language set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, m_menuLanguage.language);
 337   }
 338 }
 339
 340 void CCECBusDevice::SetMenuLanguage(const cec_menu_language &language)
 341 {
 342   if (language.device == m_iLogicalAddress)
 343     SetMenuLanguage(language.language);
 344 }
 345
 346 bool CCECBusDevice::RequestMenuLanguage(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 347 {
 348   bool bReturn(false);
 349
 350   if (!IsHandledByLibCEC() &&
 351       !IsUnsupportedFeature(CEC_OPCODE_GET_MENU_LANGUAGE))
 352   {
 353     MarkBusy();
 354     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting menu language of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 355     bReturn = m_handler->TransmitRequestMenuLanguage(initiator, m_iLogicalAddress, bWaitForResponse);
 356     MarkReady();
 357   }
 358   return bReturn;
 359 }
 360
 361 bool CCECBusDevice::TransmitSetMenuLanguage(const cec_logical_address destination)
 362 {
 363   bool bReturn(false);
 364   cec_menu_language language;
 365   {
 366     CLockObject lock(m_mutex);
 367     language = m_menuLanguage;
 368   }
 369
 370   char lang[3];
 371   {
 372     CLockObject lock(m_mutex);
 373     lang[0] = language.language[0];
 374     lang[1] = language.language[1];
 375     lang[2] = language.language[2];
 376   }
 377
 378   MarkBusy();
 379   if (lang[0] == '?' && lang[1] == '?' && lang[2] == '?')
 380   {
 381     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): Menu language feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 382     m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 383     bReturn = true;
 384   }
 385   else
 386   {
 387     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): Menu language '%s'", GetLogicalAddressName(), m_iLogicalAddress, lang);
 388     bReturn = m_handler->TransmitSetMenuLanguage(m_iLogicalAddress, lang);
 389   }
 390   MarkReady();
 391   return bReturn;
 392 }
 393
 394 bool CCECBusDevice::TransmitOSDString(const cec_logical_address destination, cec_display_control duration, const char *strMessage)
 395 {
 396   bool bReturn(false);
 397   if (!m_processor->GetDevice(destination)->IsUnsupportedFeature(CEC_OPCODE_SET_OSD_STRING))
 398   {
 399     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): display OSD message '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, strMessage);
 400     MarkBusy();
 401     bReturn = m_handler->TransmitOSDString(m_iLogicalAddress, destination, duration, strMessage);
 402     MarkReady();
 403   }
 404   return bReturn;
 405 }
 406
 407 CStdString CCECBusDevice::GetCurrentOSDName(void)
 408 {
 409   CLockObject lock(m_mutex);
 410   return m_strDeviceName;
 411 }
 412
 413 CStdString CCECBusDevice::GetOSDName(const cec_logical_address initiator, bool bUpdate /* = false */)
 414 {
 415   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 416   bool bRequestUpdate(false);
 417   {
 418     CLockObject lock(m_mutex);
 419     bRequestUpdate = bIsPresent &&
 420         (bUpdate || m_strDeviceName.Equals(ToString(m_iLogicalAddress))) &&
 421         m_type != CEC_DEVICE_TYPE_TV;
 422   }
 423
 424   if (bRequestUpdate)
 425   {
 426     CheckVendorIdRequested(initiator);
 427     RequestOSDName(initiator);
 428   }
 429
 430   CLockObject lock(m_mutex);
 431   return m_strDeviceName;
 432 }
 433
 434 void CCECBusDevice::SetOSDName(CStdString strName)
 435 {
 436   CLockObject lock(m_mutex);
 437   if (m_strDeviceName != strName)
 438   {
 439     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): osd name set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, strName.c_str());
 440     m_strDeviceName = strName;
 441   }
 442 }
 443
 444 bool CCECBusDevice::RequestOSDName(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 445 {
 446   bool bReturn(false);
 447
 448   if (!IsHandledByLibCEC() &&
 449       !IsUnsupportedFeature(CEC_OPCODE_GIVE_OSD_NAME))
 450   {
 451     MarkBusy();
 452     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting OSD name of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 453     bReturn = m_handler->TransmitRequestOSDName(initiator, m_iLogicalAddress, bWaitForResponse);
 454     MarkReady();
 455   }
 456   return bReturn;
 457 }
 458
 459 bool CCECBusDevice::TransmitOSDName(const cec_logical_address destination)
 460 {
 461   CStdString strDeviceName;
 462   {
 463     CLockObject lock(m_mutex);
 464     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): OSD name '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, m_strDeviceName.c_str());
 465     strDeviceName = m_strDeviceName;
 466   }
 467
 468   MarkBusy();
 469   bool bReturn = m_handler->TransmitOSDName(m_iLogicalAddress, destination, strDeviceName);
 470   MarkReady();
 471   return bReturn;
 472 }
 473
 474 bool CCECBusDevice::HasValidPhysicalAddress(void)
 475 {
 476   CLockObject lock(m_mutex);
 477   return CLibCEC::IsValidPhysicalAddress(m_iPhysicalAddress);
 478 }
 479
 480 uint16_t CCECBusDevice::GetCurrentPhysicalAddress(void)
 481 {
 482   CLockObject lock(m_mutex);
 483   return m_iPhysicalAddress;
 484 }
 485
 486 uint16_t CCECBusDevice::GetPhysicalAddress(const cec_logical_address initiator, bool bSuppressUpdate /* = false */)
 487 {
 488   if (!bSuppressUpdate)
 489   {
 490     bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 491     bool bRequestUpdate(false);
 492     {
 493       CLockObject lock(m_mutex);
 494       bRequestUpdate = bIsPresent && m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS;
 495     }
 496
 497     if (bRequestUpdate)
 498     {
 499       CheckVendorIdRequested(initiator);
 500       if (!RequestPhysicalAddress(initiator))
 501         LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to request the physical address");
 502     }
 503   }
 504
 505   CLockObject lock(m_mutex);
 506   return m_iPhysicalAddress;
 507 }
 508
 509 bool CCECBusDevice::SetPhysicalAddress(uint16_t iNewAddress)
 510 {
 511   CLockObject lock(m_mutex);
 512   if (iNewAddress > 0 && m_iPhysicalAddress != iNewAddress)
 513   {
 514     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): physical address changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress, iNewAddress);
 515     m_iPhysicalAddress = iNewAddress;
 516   }
 517   return true;
 518 }
 519
 520 bool CCECBusDevice::RequestPhysicalAddress(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 521 {
 522   bool bReturn(false);
 523
 524   if (!IsHandledByLibCEC())
 525   {
 526     MarkBusy();
 527     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting physical address of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 528     bReturn = m_handler->TransmitRequestPhysicalAddress(initiator, m_iLogicalAddress, bWaitForResponse);
 529     MarkReady();
 530   }
 531   return bReturn;
 532 }
 533
 534 bool CCECBusDevice::TransmitPhysicalAddress(void)
 535 {
 536   uint16_t iPhysicalAddress;
 537   cec_device_type type;
 538   {
 539     CLockObject lock(m_mutex);
 540     if (m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS)
 541       return false;
 542
 543     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): physical adddress %4x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 544     iPhysicalAddress = m_iPhysicalAddress;
 545     type = m_type;
 546   }
 547
 548   MarkBusy();
 549   bool bReturn = m_handler->TransmitPhysicalAddress(m_iLogicalAddress, iPhysicalAddress, type);
 550   MarkReady();
 551   return bReturn;
 552 }
 553
 554 cec_power_status CCECBusDevice::GetCurrentPowerStatus(void)
 555 {
 556   CLockObject lock(m_mutex);
 557   return m_powerStatus;
 558 }
 559
 560 cec_power_status CCECBusDevice::GetPowerStatus(const cec_logical_address initiator, bool bUpdate /* = false */)
 561 {
 562   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 563   bool bRequestUpdate(false);
 564   {
 565     CLockObject lock(m_mutex);
 566     bRequestUpdate = (bIsPresent &&
 567         (bUpdate || m_powerStatus == CEC_POWER_STATUS_UNKNOWN ||
 568             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON ||
 569             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY ||
 570             GetTimeMs() - m_iLastPowerStateUpdate >= CEC_POWER_STATE_REFRESH_TIME));
 571   }
 572
 573   if (bRequestUpdate)
 574   {
 575     CheckVendorIdRequested(initiator);
 576     RequestPowerStatus(initiator);
 577   }
 578
 579   CLockObject lock(m_mutex);
 580   return m_powerStatus;
 581 }
 582
 583 void CCECBusDevice::SetPowerStatus(const cec_power_status powerStatus)
 584 {
 585   CLockObject lock(m_mutex);
 586   if (m_powerStatus != powerStatus)
 587   {
 588     m_iLastPowerStateUpdate = GetTimeMs();
 589     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): power status changed from '%s' to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_powerStatus), ToString(powerStatus));
 590     m_powerStatus = powerStatus;
 591   }
 592 }
 593
 594 bool CCECBusDevice::RequestPowerStatus(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 595 {
 596   bool bReturn(false);
 597
 598   if (!IsHandledByLibCEC() &&
 599       !IsUnsupportedFeature(CEC_OPCODE_GIVE_DEVICE_POWER_STATUS))
 600   {
 601     MarkBusy();
 602     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting power status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 603     bReturn = m_handler->TransmitRequestPowerStatus(initiator, m_iLogicalAddress, bWaitForResponse);
 604     MarkReady();
 605   }
 606   return bReturn;
 607 }
 608
 609 bool CCECBusDevice::TransmitPowerState(const cec_logical_address destination)
 610 {
 611   cec_power_status state;
 612   {
 613     CLockObject lock(m_mutex);
 614     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_powerStatus));
 615     state = m_powerStatus;
 616   }
 617
 618   MarkBusy();
 619   bool bReturn = m_handler->TransmitPowerState(m_iLogicalAddress, destination, state);
 620   MarkReady();
 621   return bReturn;
 622 }
 623
 624 cec_vendor_id CCECBusDevice::GetCurrentVendorId(void)
 625 {
 626   CLockObject lock(m_mutex);
 627   return m_vendor;
 628 }
 629
 630 cec_vendor_id CCECBusDevice::GetVendorId(const cec_logical_address initiator, bool bUpdate /* = false */)
 631 {
 632   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 633   bool bRequestUpdate(false);
 634   {
 635     CLockObject lock(m_mutex);
 636     bRequestUpdate = (bIsPresent &&
 637         (bUpdate || m_vendor == CEC_VENDOR_UNKNOWN));
 638   }
 639
 640   if (bRequestUpdate)
 641     RequestVendorId(initiator);
 642
 643   CLockObject lock(m_mutex);
 644   return m_vendor;
 645 }
 646
 647 const char *CCECBusDevice::GetVendorName(const cec_logical_address initiator, bool bUpdate /* = false */)
 648 {
 649   return ToString(GetVendorId(initiator, bUpdate));
 650 }
 651
 652 bool CCECBusDevice::SetVendorId(uint64_t iVendorId)
 653 {
 654   bool bVendorChanged(false);
 655
 656   {
 657     CLockObject lock(m_mutex);
 658     bVendorChanged = (m_vendor != (cec_vendor_id)iVendorId);
 659     m_vendor = (cec_vendor_id)iVendorId;
 660   }
 661
 662   if (bVendorChanged)
 663     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): vendor = %s (%06x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_vendor), m_vendor);
 664
 665   return bVendorChanged;
 666 }
 667
 668 bool CCECBusDevice::RequestVendorId(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 669 {
 670   bool bReturn(false);
 671
 672   if (!IsHandledByLibCEC() && initiator != CECDEVICE_UNKNOWN)
 673   {
 674     MarkBusy();
 675     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting vendor ID of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 676     bReturn = m_handler->TransmitRequestVendorId(initiator, m_iLogicalAddress, bWaitForResponse);
 677     MarkReady();
 678
 679     if (bWaitForResponse)
 680       ReplaceHandler(true);
 681   }
 682   return bReturn;
 683 }
 684
 685 bool CCECBusDevice::TransmitVendorID(const cec_logical_address destination, bool bSendAbort /* = true */)
 686 {
 687   bool bReturn(false);
 688   uint64_t iVendorId;
 689   {
 690     CLockObject lock(m_mutex);
 691     iVendorId = (uint64_t)m_vendor;
 692   }
 693
 694   MarkBusy();
 695   if (iVendorId == CEC_VENDOR_UNKNOWN)
 696   {
 697     if (bSendAbort)
 698     {
 699       LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): vendor id feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 700       m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 701       bReturn = true;
 702     }
 703   }
 704   else
 705   {
 706     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): vendor id %s (%x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString((cec_vendor_id)iVendorId), iVendorId);
 707     bReturn = m_handler->TransmitVendorID(m_iLogicalAddress, iVendorId);
 708   }
 709   MarkReady();
 710   return bReturn;
 711 }
 712
 713 cec_bus_device_status CCECBusDevice::GetStatus(bool bForcePoll /* = false */, bool bSuppressPoll /* = false */)
 714 {
 715   cec_bus_device_status status(CEC_DEVICE_STATUS_UNKNOWN);
 716   bool bNeedsPoll(false);
 717
 718   {
 719     CLockObject lock(m_mutex);
 720     status = m_deviceStatus;
 721     bNeedsPoll = !bSuppressPoll &&
 722         (bForcePoll || m_deviceStatus == CEC_DEVICE_STATUS_UNKNOWN);
 723   }
 724
 725   if (bNeedsPoll)
 726   {
 727     bool bPollAcked(false);
 728     if (bNeedsPoll && NeedsPoll())
 729       bPollAcked = m_processor->PollDevice(m_iLogicalAddress);
 730
 731     status = bPollAcked ? CEC_DEVICE_STATUS_PRESENT : CEC_DEVICE_STATUS_NOT_PRESENT;
 732     SetDeviceStatus(status);
 733   }
 734
 735   return status;
 736 }
 737
 738 void CCECBusDevice::SetDeviceStatus(const cec_bus_device_status newStatus)
 739 {
 740   {
 741     CLockObject lock(m_mutex);
 742     switch (newStatus)
 743     {
 744     case CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC:
 745       if (m_deviceStatus != newStatus)
 746         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'handled by libCEC'", GetLogicalAddressName(), m_iLogicalAddress);
 747       SetPowerStatus   (CEC_POWER_STATUS_ON);
 748       SetVendorId      (CEC_VENDOR_UNKNOWN);
 749       SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 750       SetCecVersion    (CEC_VERSION_1_3A);
 751       SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 752       MarkAsInactiveSource();
 753       m_iLastActive   = 0;
 754       m_deviceStatus  = newStatus;
 755       break;
 756     case CEC_DEVICE_STATUS_PRESENT:
 757       if (m_deviceStatus != newStatus)
 758         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'present'", GetLogicalAddressName(), m_iLogicalAddress);
 759       m_deviceStatus = newStatus;
 760       break;
 761     case CEC_DEVICE_STATUS_NOT_PRESENT:
 762       if (m_deviceStatus != newStatus)
 763       {
 764         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'not present'", GetLogicalAddressName(), m_iLogicalAddress);
 765         ResetDeviceStatus();
 766         m_deviceStatus = newStatus;
 767       }
 768       break;
 769     default:
 770       ResetDeviceStatus();
 771       break;
 772     }
 773   }
 774 }
 775
 776 void CCECBusDevice::ResetDeviceStatus(void)
 777 {
 778   CLockObject lock(m_mutex);
 779   SetPowerStatus   (CEC_POWER_STATUS_UNKNOWN);
 780   SetVendorId      (CEC_VENDOR_UNKNOWN);
 781   SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 782   SetCecVersion    (CEC_VERSION_UNKNOWN);
 783   SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 784   SetOSDName       (ToString(m_iLogicalAddress));
 785   MarkAsInactiveSource();
 786
 787   m_iLastActive = 0;
 788   m_bVendorIdRequested = false;
 789   m_unsupportedFeatures.clear();
 790
 791   if (m_deviceStatus != CEC_DEVICE_STATUS_UNKNOWN)
 792     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'unknown'", GetLogicalAddressName(), m_iLogicalAddress);
 793   m_deviceStatus = CEC_DEVICE_STATUS_UNKNOWN;
 794 }
 795
 796 bool CCECBusDevice::TransmitPoll(const cec_logical_address dest)
 797 {
 798   bool bReturn(false);
 799   cec_logical_address destination(dest);
 800   if (destination == CECDEVICE_UNKNOWN)
 801     destination = m_iLogicalAddress;
 802
 803   CCECBusDevice *destDevice = m_processor->GetDevice(destination);
 804   if (destDevice->m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 805     return bReturn;
 806
 807   MarkBusy();
 808   LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): POLL", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 809   bReturn = m_handler->TransmitPoll(m_iLogicalAddress, destination);
 810   LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? ">> POLL sent" : ">> POLL not sent");
 811
 812   CLockObject lock(m_mutex);
 813   if (bReturn)
 814   {
 815     m_iLastActive = GetTimeMs();
 816     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 817   }
 818   else
 819     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_NOT_PRESENT;
 820
 821   MarkReady();
 822   return bReturn;
 823 }
 824
 825 void CCECBusDevice::HandlePoll(const cec_logical_address destination)
 826 {
 827   if (destination >= 0 && destination < CECDEVICE_BROADCAST)
 828   {
 829     CCECBusDevice *device = m_processor->GetDevice(destination);
 830     if (device)
 831       device->HandlePollFrom(m_iLogicalAddress);
 832   }
 833 }
 834
 835 void CCECBusDevice::HandlePollFrom(const cec_logical_address initiator)
 836 {
 837   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< POLL: %s (%x) -> %s (%x)", ToString(initiator), initiator, ToString(m_iLogicalAddress), m_iLogicalAddress);
 838   m_bAwaitingReceiveFailed = true;
 839 }
 840
 841 bool CCECBusDevice::HandleReceiveFailed(void)
 842 {
 843   bool bReturn = m_bAwaitingReceiveFailed;
 844   m_bAwaitingReceiveFailed = false;
 845   return bReturn;
 846 }
 847
 848 cec_menu_state CCECBusDevice::GetMenuState(const cec_logical_address UNUSED(initiator))
 849 {
 850   CLockObject lock(m_mutex);
 851   return m_menuState;
 852 }
 853
 854 void CCECBusDevice::SetMenuState(const cec_menu_state state)
 855 {
 856   CLockObject lock(m_mutex);
 857   if (m_menuState != state)
 858   {
 859     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu state set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_menuState));
 860     m_menuState = state;
 861   }
 862 }
 863
 864 bool CCECBusDevice::TransmitMenuState(const cec_logical_address dest)
 865 {
 866   cec_menu_state menuState;
 867   {
 868     CLockObject lock(m_mutex);
 869     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): menu state '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_menuState));
 870     menuState = m_menuState;
 871   }
 872
 873   MarkBusy();
 874   bool bReturn = m_handler->TransmitMenuState(m_iLogicalAddress, dest, menuState);
 875   MarkReady();
 876   return bReturn;
 877 }
 878
 879 bool CCECBusDevice::ActivateSource(void)
 880 {
 881   MarkAsActiveSource();
 882   LIB_CEC->AddLog(CEC_LOG_DEBUG, "activating source '%s'", ToString(m_iLogicalAddress));
 883   MarkBusy();
 884   bool bReturn = m_handler->ActivateSource();
 885   MarkReady();
 886   return bReturn;
 887 }
 888
 889 bool CCECBusDevice::RequestActiveSource(bool bWaitForResponse /* = true */)
 890 {
 891   bool bReturn(false);
 892
 893   if (IsHandledByLibCEC())
 894   {
 895     MarkBusy();
 896     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting active source");
 897
 898     bReturn = m_handler->TransmitRequestActiveSource(m_iLogicalAddress, bWaitForResponse);
 899     MarkReady();
 900   }
 901   return bReturn;
 902 }
 903
 904 void CCECBusDevice::MarkAsActiveSource(void)
 905 {
 906   CLockObject lock(m_mutex);
 907   if (!m_bActiveSource)
 908     LIB_CEC->AddLog(CEC_LOG_DEBUG, "making %s (%x) the active source", GetLogicalAddressName(), m_iLogicalAddress);
 909   else
 910     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%x) was already marked as active source", GetLogicalAddressName(), m_iLogicalAddress);
 911
 912   CECDEVICEVEC devices;
 913   m_processor->GetDevices()->Get(devices);
 914   for (CECDEVICEVEC::iterator it = devices.begin(); it != devices.end(); it++)
 915     if ((*it)->GetLogicalAddress() != m_iLogicalAddress)
 916       (*it)->MarkAsInactiveSource();
 917
 918   m_bActiveSource = true;
 919   SetPowerStatus(CEC_POWER_STATUS_ON);
 920 }
 921
 922 void CCECBusDevice::MarkAsInactiveSource(void)
 923 {
 924   {
 925     CLockObject lock(m_mutex);
 926     if (m_bActiveSource)
 927       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking %s (%X) as inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 928     m_bActiveSource = false;
 929   }
 930 }
 931
 932 bool CCECBusDevice::TransmitActiveSource(void)
 933 {
 934   bool bSendActiveSource(false);
 935
 936   {
 937     CLockObject lock(m_mutex);
 938     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 939       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 940     else if (m_bActiveSource)
 941     {
 942       LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): active source (%4x)", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 943       bSendActiveSource = true;
 944     }
 945     else
 946       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not the active source", GetLogicalAddressName(), m_iLogicalAddress);
 947   }
 948
 949   if (bSendActiveSource)
 950   {
 951     MarkBusy();
 952     m_handler->TransmitActiveSource(m_iLogicalAddress, m_iPhysicalAddress);
 953     MarkReady();
 954     return true;
 955   }
 956
 957   return false;
 958 }
 959
 960 bool CCECBusDevice::TransmitImageViewOn(void)
 961 {
 962   {
 963     CLockObject lock(m_mutex);
 964     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 965     {
 966       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 967       return false;
 968     }
 969   }
 970
 971   MarkBusy();
 972   m_handler->TransmitImageViewOn(m_iLogicalAddress, CECDEVICE_TV);
 973   MarkReady();
 974   return true;
 975 }
 976
 977 bool CCECBusDevice::TransmitInactiveSource(void)
 978 {
 979   uint16_t iPhysicalAddress;
 980   {
 981     CLockObject lock(m_mutex);
 982     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 983     iPhysicalAddress = m_iPhysicalAddress;
 984   }
 985
 986   MarkBusy();
 987   bool bReturn = m_handler->TransmitInactiveSource(m_iLogicalAddress, iPhysicalAddress);
 988   MarkReady();
 989   return bReturn;
 990 }
 991
 992 bool CCECBusDevice::TransmitPendingActiveSourceCommands(void)
 993 {
 994   MarkBusy();
 995   bool bReturn = m_handler->TransmitPendingActiveSourceCommands();
 996   MarkReady();
 997   return bReturn;
 998 }
 999
1000 void CCECBusDevice::SetStreamPath(uint16_t iNewAddress, uint16_t iOldAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */)
1001 {
1002   CLockObject lock(m_mutex);
1003   if (iNewAddress != m_iStreamPath)
1004   {
1005     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): stream path changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, iOldAddress == 0 ? m_iStreamPath : iOldAddress, iNewAddress);
1006     m_iStreamPath = iNewAddress;
1007   }
1008
1009   if (!LIB_CEC->IsValidPhysicalAddress(iNewAddress))
1010     return;
1011
1012   CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
1013   if (device)
1014   {
1015     // if a device is found with the new physical address, mark it as active, which will automatically mark all other devices as inactive
1016     device->MarkAsActiveSource();
1017   }
1018   else
1019   {
1020     // try to find the device with the old address, and mark it as inactive when found
1021     device = m_processor->GetDeviceByPhysicalAddress(iOldAddress);
1022     if (device)
1023       device->MarkAsInactiveSource();
1024   }
1025 }
1026
1027 bool CCECBusDevice::PowerOn(const cec_logical_address initiator)
1028 {
1029   bool bReturn(false);
1030   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1031
1032   MarkBusy();
1033   cec_power_status currentStatus = GetPowerStatus(initiator, false);
1034   if (currentStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON &&
1035     currentStatus != CEC_POWER_STATUS_ON)
1036   {
1037     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< powering on '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
1038     if (m_handler->PowerOn(initiator, m_iLogicalAddress))
1039     {
1040       SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
1041       bReturn = true;
1042     }
1043   }
1044   else
1045   {
1046     LIB_CEC->AddLog(CEC_LOG_NOTICE, "'%s' (%X) is already '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(currentStatus));
1047   }
1048
1049   MarkReady();
1050   return bReturn;
1051 }
1052
1053 bool CCECBusDevice::Standby(const cec_logical_address initiator)
1054 {
1055   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1056
1057   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< putting '%s' (%X) in standby mode", GetLogicalAddressName(), m_iLogicalAddress);
1058   MarkBusy();
1059   bool bReturn = m_handler->TransmitStandby(initiator, m_iLogicalAddress);
1060   MarkReady();
1061   return bReturn;
1062 }
1063
1064 bool CCECBusDevice::NeedsPoll(void)
1065 {
1066   bool bSendPoll(false);
1067   cec_logical_address pollAddress(CECDEVICE_UNKNOWN);
1068   switch (m_iLogicalAddress)
1069   {
1070   case CECDEVICE_PLAYBACKDEVICE3:
1071     pollAddress = CECDEVICE_PLAYBACKDEVICE2;
1072     break;
1073   case CECDEVICE_PLAYBACKDEVICE2:
1074     pollAddress = CECDEVICE_PLAYBACKDEVICE1;
1075     break;
1076   case CECDEVICE_RECORDINGDEVICE3:
1077     pollAddress = CECDEVICE_RECORDINGDEVICE2;
1078     break;
1079   case CECDEVICE_RECORDINGDEVICE2:
1080     pollAddress = CECDEVICE_RECORDINGDEVICE1;
1081     break;
1082   case CECDEVICE_TUNER4:
1083     pollAddress = CECDEVICE_TUNER3;
1084     break;
1085   case CECDEVICE_TUNER3:
1086     pollAddress = CECDEVICE_TUNER2;
1087     break;
1088   case CECDEVICE_TUNER2:
1089     pollAddress = CECDEVICE_TUNER1;
1090     break;
1091   case CECDEVICE_AUDIOSYSTEM:
1092   case CECDEVICE_PLAYBACKDEVICE1:
1093   case CECDEVICE_RECORDINGDEVICE1:
1094   case CECDEVICE_TUNER1:
1095   case CECDEVICE_TV:
1096     bSendPoll = true;
1097     break;
1098   default:
1099     break;
1100   }
1101
1102   if (!bSendPoll && pollAddress != CECDEVICE_UNKNOWN)
1103   {
1104     CCECBusDevice *device = m_processor->GetDevice(pollAddress);
1105     if (device)
1106     {
1107       cec_bus_device_status status = device->GetStatus();
1108       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
1109     }
1110     else
1111     {
1112       bSendPoll = true;
1113     }
1114   }
1115
1116   return bSendPoll;
1117 }
1118
1119 void CCECBusDevice::CheckVendorIdRequested(const cec_logical_address initiator)
1120 {
1121   bool bRequestVendorId(false);
1122   {
1123     CLockObject lock(m_mutex);
1124     bRequestVendorId = !m_bVendorIdRequested;
1125     m_bVendorIdRequested = true;
1126   }
1127
1128   if (bRequestVendorId)
1129   {
1130     ReplaceHandler(false);
1131     GetVendorId(initiator);
1132   }
1133 }
1134 //@}
1135
1136 CCECAudioSystem *CCECBusDevice::AsAudioSystem(void)
1137 {
1138   return AsAudioSystem(this);
1139 }
1140
1141 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(void)
1142 {
1143   return AsPlaybackDevice(this);
1144 }
1145
1146 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(void)
1147 {
1148   return AsRecordingDevice(this);
1149 }
1150
1151 CCECTuner *CCECBusDevice::AsTuner(void)
1152 {
1153   return AsTuner(this);
1154 }
1155
1156 CCECTV *CCECBusDevice::AsTV(void)
1157 {
1158   return AsTV(this);
1159 }
1160
1161 CCECAudioSystem *CCECBusDevice::AsAudioSystem(CCECBusDevice *device)
1162 {
1163   if (device && device->GetType() == CEC_DEVICE_TYPE_AUDIO_SYSTEM)
1164     return static_cast<CCECAudioSystem *>(device);
1165   return NULL;
1166 }
1167
1168 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(CCECBusDevice *device)
1169 {
1170   if (device &&
1171       (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
1172        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
1173     return static_cast<CCECPlaybackDevice *>(device);
1174   return NULL;
1175 }
1176
1177 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(CCECBusDevice *device)
1178 {
1179   if (device && device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
1180     return static_cast<CCECRecordingDevice *>(device);
1181   return NULL;
1182 }
1183
1184 CCECTuner *CCECBusDevice::AsTuner(CCECBusDevice *device)
1185 {
1186   if (device && device->GetType() == CEC_DEVICE_TYPE_TUNER)
1187     return static_cast<CCECTuner *>(device);
1188   return NULL;
1189 }
1190
1191 CCECTV *CCECBusDevice::AsTV(CCECBusDevice *device)
1192 {
1193   if (device && device->GetType() == CEC_DEVICE_TYPE_TV)
1194     return static_cast<CCECTV *>(device);
1195   return NULL;
1196 }
1197
1198 void CCECBusDevice::MarkBusy(void)
1199 {
1200   CLockObject handlerLock(m_handlerMutex);
1201   ++m_iHandlerUseCount;
1202 }
1203
1204 void CCECBusDevice::MarkReady(void)
1205 {
1206   CLockObject handlerLock(m_handlerMutex);
1207   if (m_iHandlerUseCount > 0)
1208     --m_iHandlerUseCount;
1209 }
1210
1211 bool CCECBusDevice::TryLogicalAddress(void)
1212 {
1213   LIB_CEC->AddLog(CEC_LOG_DEBUG, "trying logical address '%s'", GetLogicalAddressName());
1214
1215   if (!TransmitPoll(m_iLogicalAddress))
1216   {
1217     LIB_CEC->AddLog(CEC_LOG_NOTICE, "using logical address '%s'", GetLogicalAddressName());
1218     SetDeviceStatus(CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
1219
1220     return true;
1221   }
1222
1223   LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address '%s' already taken", GetLogicalAddressName());
1224   SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
1225   return false;
1226 }
1227
1228 CCECClient *CCECBusDevice::GetClient(void)
1229 {
1230   return m_processor->GetClient(m_iLogicalAddress);
1231 }