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 "../CECTypeUtils.h"
  41 #include "../platform/util/timeutils.h"
  42 #include "../platform/util/util.h"
  43
  44 #include "CECAudioSystem.h"
  45 #include "CECPlaybackDevice.h"
  46 #include "CECRecordingDevice.h"
  47 #include "CECTuner.h"
  48 #include "CECTV.h"
  49
  50 using namespace std;
  51 using namespace CEC;
  52 using namespace PLATFORM;
  53
  54 #define LIB_CEC     m_processor->GetLib()
  55 #define ToString(p) CCECTypeUtils::ToString(p)
  56
  57 CCECBusDevice::CCECBusDevice(CCECProcessor *processor, cec_logical_address iLogicalAddress, uint16_t iPhysicalAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */) :
  58   m_type                  (CEC_DEVICE_TYPE_RESERVED),
  59   m_iPhysicalAddress      (iPhysicalAddress),
  60   m_iStreamPath           (CEC_INVALID_PHYSICAL_ADDRESS),
  61   m_iLogicalAddress       (iLogicalAddress),
  62   m_powerStatus           (CEC_POWER_STATUS_UNKNOWN),
  63   m_processor             (processor),
  64   m_vendor                (CEC_VENDOR_UNKNOWN),
  65   m_bReplaceHandler       (false),
  66   m_menuState             (CEC_MENU_STATE_ACTIVATED),
  67   m_bActiveSource         (false),
  68   m_iLastActive           (0),
  69   m_iLastPowerStateUpdate (0),
  70   m_cecVersion            (CEC_VERSION_UNKNOWN),
  71   m_deviceStatus          (CEC_DEVICE_STATUS_UNKNOWN),
  72   m_iHandlerUseCount      (0),
  73   m_bAwaitingReceiveFailed(false),
  74   m_bVendorIdRequested    (false)
  75 {
  76   m_handler = new CCECCommandHandler(this);
  77
  78   for (unsigned int iPtr = 0; iPtr < 4; iPtr++)
  79     m_menuLanguage.language[iPtr] = '?';
  80   m_menuLanguage.language[3] = 0;
  81   m_menuLanguage.device = iLogicalAddress;
  82
  83   m_strDeviceName = ToString(m_iLogicalAddress);
  84 }
  85
  86 CCECBusDevice::~CCECBusDevice(void)
  87 {
  88   DELETE_AND_NULL(m_handler);
  89 }
  90
  91 bool CCECBusDevice::ReplaceHandler(bool bActivateSource /* = true */)
  92 {
  93   bool bInitHandler(false);
  94   {
  95     CTryLockObject lock(m_mutex);
  96     if (!lock.IsLocked())
  97       return false;
  98
  99     CLockObject handlerLock(m_handlerMutex);
 100     if (m_iHandlerUseCount > 0)
 101       return false;
 102
 103     MarkBusy();
 104
 105     if (m_vendor != m_handler->GetVendorId())
 106     {
 107       if (CCECCommandHandler::HasSpecificHandler(m_vendor))
 108       {
 109         LIB_CEC->AddLog(CEC_LOG_DEBUG, "replacing the command handler for device '%s' (%x)", GetLogicalAddressName(), GetLogicalAddress());
 110         DELETE_AND_NULL(m_handler);
 111
 112         switch (m_vendor)
 113         {
 114         case CEC_VENDOR_SAMSUNG:
 115           m_handler = new CANCommandHandler(this);
 116           break;
 117         case CEC_VENDOR_LG:
 118           m_handler = new CSLCommandHandler(this);
 119           break;
 120         case CEC_VENDOR_PANASONIC:
 121           m_handler = new CVLCommandHandler(this);
 122           break;
 123         default:
 124           m_handler = new CCECCommandHandler(this);
 125           break;
 126         }
 127
 128         m_handler->SetVendorId(m_vendor);
 129         bInitHandler = true;
 130       }
 131     }
 132   }
 133
 134   if (bInitHandler)
 135   {
 136     CCECBusDevice *primary = GetProcessor()->GetPrimaryDevice();
 137     if (primary->GetLogicalAddress() != CECDEVICE_UNREGISTERED)
 138     {
 139       m_handler->InitHandler();
 140
 141       if (bActivateSource && IsHandledByLibCEC() && IsActiveSource())
 142         m_handler->ActivateSource();
 143     }
 144   }
 145
 146   MarkReady();
 147
 148   return true;
 149 }
 150
 151 CCECCommandHandler *CCECBusDevice::GetHandler(void)
 152 {
 153   ReplaceHandler(false);
 154   MarkBusy();
 155   return m_handler;
 156 }
 157
 158 bool CCECBusDevice::HandleCommand(const cec_command &command)
 159 {
 160   bool bHandled(false);
 161
 162   /* update "last active" */
 163   {
 164     CLockObject lock(m_mutex);
 165     m_iLastActive = GetTimeMs();
 166
 167     /* don't call GetStatus() here, just read the value with the mutex locked */
 168     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC && command.opcode_set == 1)
 169       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 170
 171     MarkBusy();
 172   }
 173
 174   /* handle the command */
 175   bHandled = m_handler->HandleCommand(command);
 176
 177   /* change status to present */
 178   if (bHandled && GetLogicalAddress() != CECDEVICE_BROADCAST)
 179   {
 180     CLockObject lock(m_mutex);
 181     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 182     {
 183       if (m_deviceStatus != CEC_DEVICE_STATUS_PRESENT)
 184         LIB_CEC->AddLog(CEC_LOG_DEBUG, "device %s (%x) status changed to present after command %s", GetLogicalAddressName(), (uint8_t)GetLogicalAddress(), ToString(command.opcode));
 185       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 186     }
 187   }
 188
 189   MarkReady();
 190   return bHandled;
 191 }
 192
 193 const char* CCECBusDevice::GetLogicalAddressName(void) const
 194 {
 195   return ToString(m_iLogicalAddress);
 196 }
 197
 198 bool CCECBusDevice::IsPresent(void)
 199 {
 200   CLockObject lock(m_mutex);
 201   return m_deviceStatus == CEC_DEVICE_STATUS_PRESENT;
 202 }
 203
 204 bool CCECBusDevice::IsHandledByLibCEC(void)
 205 {
 206   CLockObject lock(m_mutex);
 207   return m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC;
 208 }
 209
 210 void CCECBusDevice::SetUnsupportedFeature(cec_opcode opcode)
 211 {
 212   // some commands should never be marked as unsupported
 213   if (opcode == CEC_OPCODE_VENDOR_COMMAND ||
 214       opcode == CEC_OPCODE_VENDOR_COMMAND_WITH_ID ||
 215       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN ||
 216       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP ||
 217       opcode == CEC_OPCODE_ABORT ||
 218       opcode == CEC_OPCODE_FEATURE_ABORT ||
 219       opcode == CEC_OPCODE_NONE)
 220     return;
 221
 222   {
 223     CLockObject lock(m_mutex);
 224     if (m_unsupportedFeatures.find(opcode) == m_unsupportedFeatures.end())
 225     {
 226       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking opcode '%s' as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 227       m_unsupportedFeatures.insert(opcode);
 228     }
 229   }
 230
 231   // signal threads that are waiting for a reponse
 232   MarkBusy();
 233   m_handler->SignalOpcode(cec_command::GetResponseOpcode(opcode));
 234   MarkReady();
 235 }
 236
 237 bool CCECBusDevice::IsUnsupportedFeature(cec_opcode opcode)
 238 {
 239   CLockObject lock(m_mutex);
 240   bool bUnsupported = (m_unsupportedFeatures.find(opcode) != m_unsupportedFeatures.end());
 241   if (bUnsupported)
 242     LIB_CEC->AddLog(CEC_LOG_DEBUG, "'%s' is marked as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 243   return bUnsupported;
 244 }
 245
 246 bool CCECBusDevice::TransmitKeypress(const cec_logical_address initiator, cec_user_control_code key, bool bWait /* = true */)
 247 {
 248   MarkBusy();
 249   bool bReturn = m_handler->TransmitKeypress(initiator, m_iLogicalAddress, key, bWait);
 250   MarkReady();
 251   return bReturn;
 252 }
 253
 254 bool CCECBusDevice::TransmitKeyRelease(const cec_logical_address initiator, bool bWait /* = true */)
 255 {
 256   MarkBusy();
 257   bool bReturn = m_handler->TransmitKeyRelease(initiator, m_iLogicalAddress, bWait);
 258   MarkReady();
 259   return bReturn;
 260 }
 261
 262 cec_version CCECBusDevice::GetCecVersion(const cec_logical_address initiator, bool bUpdate /* = false */)
 263 {
 264   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 265   bool bRequestUpdate(false);
 266   {
 267     CLockObject lock(m_mutex);
 268     bRequestUpdate = bIsPresent &&
 269         (bUpdate || m_cecVersion == CEC_VERSION_UNKNOWN);
 270   }
 271
 272   if (bRequestUpdate)
 273   {
 274     CheckVendorIdRequested(initiator);
 275     RequestCecVersion(initiator);
 276   }
 277
 278   CLockObject lock(m_mutex);
 279   return m_cecVersion;
 280 }
 281
 282 void CCECBusDevice::SetCecVersion(const cec_version newVersion)
 283 {
 284   CLockObject lock(m_mutex);
 285   if (m_cecVersion != newVersion)
 286     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): CEC version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(newVersion));
 287   m_cecVersion = newVersion;
 288 }
 289
 290 bool CCECBusDevice::RequestCecVersion(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 291 {
 292   bool bReturn(false);
 293
 294   if (!IsHandledByLibCEC() &&
 295       !IsUnsupportedFeature(CEC_OPCODE_GET_CEC_VERSION))
 296   {
 297     MarkBusy();
 298     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting CEC version of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 299     bReturn = m_handler->TransmitRequestCecVersion(initiator, m_iLogicalAddress, bWaitForResponse);
 300     MarkReady();
 301   }
 302   return bReturn;
 303 }
 304
 305 bool CCECBusDevice::TransmitCECVersion(const cec_logical_address destination)
 306 {
 307   cec_version version;
 308   {
 309     CLockObject lock(m_mutex);
 310     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): cec version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_cecVersion));
 311     version = m_cecVersion;
 312   }
 313
 314   MarkBusy();
 315   bool bReturn = m_handler->TransmitCECVersion(m_iLogicalAddress, destination, version);
 316   MarkReady();
 317   return bReturn;
 318 }
 319
 320 cec_menu_language &CCECBusDevice::GetMenuLanguage(const cec_logical_address initiator, bool bUpdate /* = false */)
 321 {
 322   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 323   bool bRequestUpdate(false);
 324   {
 325     CLockObject lock(m_mutex);
 326     bRequestUpdate = (bIsPresent &&
 327         (bUpdate || !strcmp(m_menuLanguage.language, "???")));
 328   }
 329
 330   if (bRequestUpdate)
 331   {
 332     CheckVendorIdRequested(initiator);
 333     RequestMenuLanguage(initiator);
 334   }
 335
 336   CLockObject lock(m_mutex);
 337   return m_menuLanguage;
 338 }
 339
 340 void CCECBusDevice::SetMenuLanguage(const char *strLanguage)
 341 {
 342   if (!strLanguage)
 343     return;
 344
 345   CLockObject lock(m_mutex);
 346   if (strcmp(strLanguage, m_menuLanguage.language))
 347   {
 348     memcpy(m_menuLanguage.language, strLanguage, 3);
 349     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu language set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, m_menuLanguage.language);
 350   }
 351 }
 352
 353 void CCECBusDevice::SetMenuLanguage(const cec_menu_language &language)
 354 {
 355   if (language.device == m_iLogicalAddress)
 356     SetMenuLanguage(language.language);
 357 }
 358
 359 bool CCECBusDevice::RequestMenuLanguage(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 360 {
 361   bool bReturn(false);
 362
 363   if (!IsHandledByLibCEC() &&
 364       !IsUnsupportedFeature(CEC_OPCODE_GET_MENU_LANGUAGE))
 365   {
 366     MarkBusy();
 367     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting menu language of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 368     bReturn = m_handler->TransmitRequestMenuLanguage(initiator, m_iLogicalAddress, bWaitForResponse);
 369     MarkReady();
 370   }
 371   return bReturn;
 372 }
 373
 374 bool CCECBusDevice::TransmitSetMenuLanguage(const cec_logical_address destination)
 375 {
 376   bool bReturn(false);
 377   cec_menu_language language;
 378   {
 379     CLockObject lock(m_mutex);
 380     language = m_menuLanguage;
 381   }
 382
 383   char lang[3];
 384   {
 385     CLockObject lock(m_mutex);
 386     lang[0] = language.language[0];
 387     lang[1] = language.language[1];
 388     lang[2] = language.language[2];
 389   }
 390
 391   MarkBusy();
 392   if (lang[0] == '?' && lang[1] == '?' && lang[2] == '?')
 393   {
 394     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): Menu language feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 395     m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 396     bReturn = true;
 397   }
 398   else
 399   {
 400     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): Menu language '%s'", GetLogicalAddressName(), m_iLogicalAddress, lang);
 401     bReturn = m_handler->TransmitSetMenuLanguage(m_iLogicalAddress, lang);
 402   }
 403   MarkReady();
 404   return bReturn;
 405 }
 406
 407 bool CCECBusDevice::TransmitOSDString(const cec_logical_address destination, cec_display_control duration, const char *strMessage)
 408 {
 409   bool bReturn(false);
 410   if (!m_processor->GetDevice(destination)->IsUnsupportedFeature(CEC_OPCODE_SET_OSD_STRING))
 411   {
 412     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): display OSD message '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, strMessage);
 413     MarkBusy();
 414     bReturn = m_handler->TransmitOSDString(m_iLogicalAddress, destination, duration, strMessage);
 415     MarkReady();
 416   }
 417   return bReturn;
 418 }
 419
 420 CStdString CCECBusDevice::GetCurrentOSDName(void)
 421 {
 422   CLockObject lock(m_mutex);
 423   return m_strDeviceName;
 424 }
 425
 426 CStdString CCECBusDevice::GetOSDName(const cec_logical_address initiator, bool bUpdate /* = false */)
 427 {
 428   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 429   bool bRequestUpdate(false);
 430   {
 431     CLockObject lock(m_mutex);
 432     bRequestUpdate = bIsPresent &&
 433         (bUpdate || m_strDeviceName.Equals(ToString(m_iLogicalAddress))) &&
 434         m_type != CEC_DEVICE_TYPE_TV;
 435   }
 436
 437   if (bRequestUpdate)
 438   {
 439     CheckVendorIdRequested(initiator);
 440     RequestOSDName(initiator);
 441   }
 442
 443   CLockObject lock(m_mutex);
 444   return m_strDeviceName;
 445 }
 446
 447 void CCECBusDevice::SetOSDName(CStdString strName)
 448 {
 449   CLockObject lock(m_mutex);
 450   if (m_strDeviceName != strName)
 451   {
 452     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): osd name set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, strName.c_str());
 453     m_strDeviceName = strName;
 454   }
 455 }
 456
 457 bool CCECBusDevice::RequestOSDName(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 458 {
 459   bool bReturn(false);
 460
 461   if (!IsHandledByLibCEC() &&
 462       !IsUnsupportedFeature(CEC_OPCODE_GIVE_OSD_NAME))
 463   {
 464     MarkBusy();
 465     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting OSD name of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 466     bReturn = m_handler->TransmitRequestOSDName(initiator, m_iLogicalAddress, bWaitForResponse);
 467     MarkReady();
 468   }
 469   return bReturn;
 470 }
 471
 472 bool CCECBusDevice::TransmitOSDName(const cec_logical_address destination)
 473 {
 474   CStdString strDeviceName;
 475   {
 476     CLockObject lock(m_mutex);
 477     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): OSD name '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, m_strDeviceName.c_str());
 478     strDeviceName = m_strDeviceName;
 479   }
 480
 481   MarkBusy();
 482   bool bReturn = m_handler->TransmitOSDName(m_iLogicalAddress, destination, strDeviceName);
 483   MarkReady();
 484   return bReturn;
 485 }
 486
 487 bool CCECBusDevice::HasValidPhysicalAddress(void)
 488 {
 489   CLockObject lock(m_mutex);
 490   return CLibCEC::IsValidPhysicalAddress(m_iPhysicalAddress);
 491 }
 492
 493 uint16_t CCECBusDevice::GetCurrentPhysicalAddress(void)
 494 {
 495   CLockObject lock(m_mutex);
 496   return m_iPhysicalAddress;
 497 }
 498
 499 uint16_t CCECBusDevice::GetPhysicalAddress(const cec_logical_address initiator, bool bSuppressUpdate /* = false */)
 500 {
 501   if (!bSuppressUpdate)
 502   {
 503     bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 504     bool bRequestUpdate(false);
 505     {
 506       CLockObject lock(m_mutex);
 507       bRequestUpdate = bIsPresent && m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS;
 508     }
 509
 510     if (bRequestUpdate)
 511     {
 512       CheckVendorIdRequested(initiator);
 513       if (!RequestPhysicalAddress(initiator))
 514         LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to request the physical address");
 515     }
 516   }
 517
 518   CLockObject lock(m_mutex);
 519   return m_iPhysicalAddress;
 520 }
 521
 522 bool CCECBusDevice::SetPhysicalAddress(uint16_t iNewAddress)
 523 {
 524   CLockObject lock(m_mutex);
 525   if (iNewAddress > 0 && m_iPhysicalAddress != iNewAddress)
 526   {
 527     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): physical address changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress, iNewAddress);
 528     m_iPhysicalAddress = iNewAddress;
 529   }
 530   return true;
 531 }
 532
 533 bool CCECBusDevice::RequestPhysicalAddress(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 534 {
 535   bool bReturn(false);
 536
 537   if (!IsHandledByLibCEC())
 538   {
 539     MarkBusy();
 540     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting physical address of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 541     bReturn = m_handler->TransmitRequestPhysicalAddress(initiator, m_iLogicalAddress, bWaitForResponse);
 542     MarkReady();
 543   }
 544   return bReturn;
 545 }
 546
 547 bool CCECBusDevice::TransmitPhysicalAddress(void)
 548 {
 549   uint16_t iPhysicalAddress;
 550   cec_device_type type;
 551   {
 552     CLockObject lock(m_mutex);
 553     if (m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS)
 554       return false;
 555
 556     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): physical adddress %4x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 557     iPhysicalAddress = m_iPhysicalAddress;
 558     type = m_type;
 559   }
 560
 561   MarkBusy();
 562   bool bReturn = m_handler->TransmitPhysicalAddress(m_iLogicalAddress, iPhysicalAddress, type);
 563   MarkReady();
 564   return bReturn;
 565 }
 566
 567 cec_power_status CCECBusDevice::GetCurrentPowerStatus(void)
 568 {
 569   CLockObject lock(m_mutex);
 570   return m_powerStatus;
 571 }
 572
 573 cec_power_status CCECBusDevice::GetPowerStatus(const cec_logical_address initiator, bool bUpdate /* = false */)
 574 {
 575   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 576   bool bRequestUpdate(false);
 577   {
 578     CLockObject lock(m_mutex);
 579     bRequestUpdate = (bIsPresent &&
 580         (bUpdate || m_powerStatus == CEC_POWER_STATUS_UNKNOWN ||
 581             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON ||
 582             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY ||
 583             GetTimeMs() - m_iLastPowerStateUpdate >= CEC_POWER_STATE_REFRESH_TIME));
 584   }
 585
 586   if (bRequestUpdate)
 587   {
 588     CheckVendorIdRequested(initiator);
 589     RequestPowerStatus(initiator);
 590   }
 591
 592   CLockObject lock(m_mutex);
 593   return m_powerStatus;
 594 }
 595
 596 void CCECBusDevice::SetPowerStatus(const cec_power_status powerStatus)
 597 {
 598   CLockObject lock(m_mutex);
 599   if (m_powerStatus != powerStatus)
 600   {
 601     m_iLastPowerStateUpdate = GetTimeMs();
 602     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): power status changed from '%s' to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_powerStatus), ToString(powerStatus));
 603     m_powerStatus = powerStatus;
 604   }
 605 }
 606
 607 bool CCECBusDevice::RequestPowerStatus(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 608 {
 609   bool bReturn(false);
 610
 611   if (!IsHandledByLibCEC() &&
 612       !IsUnsupportedFeature(CEC_OPCODE_GIVE_DEVICE_POWER_STATUS))
 613   {
 614     MarkBusy();
 615     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting power status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 616     bReturn = m_handler->TransmitRequestPowerStatus(initiator, m_iLogicalAddress, bWaitForResponse);
 617     MarkReady();
 618   }
 619   return bReturn;
 620 }
 621
 622 bool CCECBusDevice::TransmitPowerState(const cec_logical_address destination)
 623 {
 624   cec_power_status state;
 625   {
 626     CLockObject lock(m_mutex);
 627     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_powerStatus));
 628     state = m_powerStatus;
 629   }
 630
 631   MarkBusy();
 632   bool bReturn = m_handler->TransmitPowerState(m_iLogicalAddress, destination, state);
 633   MarkReady();
 634   return bReturn;
 635 }
 636
 637 cec_vendor_id CCECBusDevice::GetCurrentVendorId(void)
 638 {
 639   CLockObject lock(m_mutex);
 640   return m_vendor;
 641 }
 642
 643 cec_vendor_id CCECBusDevice::GetVendorId(const cec_logical_address initiator, bool bUpdate /* = false */)
 644 {
 645   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 646   bool bRequestUpdate(false);
 647   {
 648     CLockObject lock(m_mutex);
 649     bRequestUpdate = (bIsPresent &&
 650         (bUpdate || m_vendor == CEC_VENDOR_UNKNOWN));
 651   }
 652
 653   if (bRequestUpdate)
 654     RequestVendorId(initiator);
 655
 656   CLockObject lock(m_mutex);
 657   return m_vendor;
 658 }
 659
 660 const char *CCECBusDevice::GetVendorName(const cec_logical_address initiator, bool bUpdate /* = false */)
 661 {
 662   return ToString(GetVendorId(initiator, bUpdate));
 663 }
 664
 665 bool CCECBusDevice::SetVendorId(uint64_t iVendorId)
 666 {
 667   bool bVendorChanged(false);
 668
 669   {
 670     CLockObject lock(m_mutex);
 671     bVendorChanged = (m_vendor != (cec_vendor_id)iVendorId);
 672     m_vendor = (cec_vendor_id)iVendorId;
 673   }
 674
 675   if (bVendorChanged)
 676     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): vendor = %s (%06x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_vendor), m_vendor);
 677
 678   return bVendorChanged;
 679 }
 680
 681 bool CCECBusDevice::RequestVendorId(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 682 {
 683   bool bReturn(false);
 684
 685   if (!IsHandledByLibCEC() && initiator != CECDEVICE_UNKNOWN)
 686   {
 687     MarkBusy();
 688     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting vendor ID of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 689     bReturn = m_handler->TransmitRequestVendorId(initiator, m_iLogicalAddress, bWaitForResponse);
 690     MarkReady();
 691
 692     if (bWaitForResponse)
 693       ReplaceHandler(true);
 694   }
 695   return bReturn;
 696 }
 697
 698 bool CCECBusDevice::TransmitVendorID(const cec_logical_address destination, bool bSendAbort /* = true */)
 699 {
 700   bool bReturn(false);
 701   uint64_t iVendorId;
 702   {
 703     CLockObject lock(m_mutex);
 704     iVendorId = (uint64_t)m_vendor;
 705   }
 706
 707   MarkBusy();
 708   if (iVendorId == CEC_VENDOR_UNKNOWN)
 709   {
 710     if (bSendAbort)
 711     {
 712       LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): vendor id feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 713       m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 714       bReturn = true;
 715     }
 716   }
 717   else
 718   {
 719     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);
 720     bReturn = m_handler->TransmitVendorID(m_iLogicalAddress, iVendorId);
 721   }
 722   MarkReady();
 723   return bReturn;
 724 }
 725
 726 cec_bus_device_status CCECBusDevice::GetStatus(bool bForcePoll /* = false */, bool bSuppressPoll /* = false */)
 727 {
 728   cec_bus_device_status status(CEC_DEVICE_STATUS_UNKNOWN);
 729   bool bNeedsPoll(false);
 730
 731   {
 732     CLockObject lock(m_mutex);
 733     status = m_deviceStatus;
 734     bNeedsPoll = !bSuppressPoll &&
 735         (bForcePoll || m_deviceStatus == CEC_DEVICE_STATUS_UNKNOWN);
 736   }
 737
 738   if (bNeedsPoll)
 739   {
 740     bool bPollAcked(false);
 741     if (bNeedsPoll && NeedsPoll())
 742       bPollAcked = m_processor->PollDevice(m_iLogicalAddress);
 743
 744     status = bPollAcked ? CEC_DEVICE_STATUS_PRESENT : CEC_DEVICE_STATUS_NOT_PRESENT;
 745     SetDeviceStatus(status);
 746   }
 747
 748   return status;
 749 }
 750
 751 void CCECBusDevice::SetDeviceStatus(const cec_bus_device_status newStatus)
 752 {
 753   {
 754     CLockObject lock(m_mutex);
 755     switch (newStatus)
 756     {
 757     case CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC:
 758       if (m_deviceStatus != newStatus)
 759         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'handled by libCEC'", GetLogicalAddressName(), m_iLogicalAddress);
 760       SetPowerStatus   (CEC_POWER_STATUS_ON);
 761       SetVendorId      (CEC_VENDOR_UNKNOWN);
 762       SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 763       SetCecVersion    (CEC_VERSION_1_3A);
 764       SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 765       MarkAsInactiveSource();
 766       m_iLastActive   = 0;
 767       m_deviceStatus  = newStatus;
 768       break;
 769     case CEC_DEVICE_STATUS_PRESENT:
 770       if (m_deviceStatus != newStatus)
 771         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'present'", GetLogicalAddressName(), m_iLogicalAddress);
 772       m_deviceStatus = newStatus;
 773       break;
 774     case CEC_DEVICE_STATUS_NOT_PRESENT:
 775       if (m_deviceStatus != newStatus)
 776       {
 777         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'not present'", GetLogicalAddressName(), m_iLogicalAddress);
 778         ResetDeviceStatus();
 779         m_deviceStatus = newStatus;
 780       }
 781       break;
 782     default:
 783       ResetDeviceStatus();
 784       break;
 785     }
 786   }
 787 }
 788
 789 void CCECBusDevice::ResetDeviceStatus(void)
 790 {
 791   CLockObject lock(m_mutex);
 792   SetPowerStatus   (CEC_POWER_STATUS_UNKNOWN);
 793   SetVendorId      (CEC_VENDOR_UNKNOWN);
 794   SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 795   SetCecVersion    (CEC_VERSION_UNKNOWN);
 796   SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 797   SetOSDName       (ToString(m_iLogicalAddress));
 798   MarkAsInactiveSource();
 799
 800   m_iLastActive = 0;
 801   m_bVendorIdRequested = false;
 802   m_unsupportedFeatures.clear();
 803
 804   if (m_deviceStatus != CEC_DEVICE_STATUS_UNKNOWN)
 805     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'unknown'", GetLogicalAddressName(), m_iLogicalAddress);
 806   m_deviceStatus = CEC_DEVICE_STATUS_UNKNOWN;
 807 }
 808
 809 bool CCECBusDevice::TransmitPoll(const cec_logical_address dest)
 810 {
 811   bool bReturn(false);
 812   cec_logical_address destination(dest);
 813   if (destination == CECDEVICE_UNKNOWN)
 814     destination = m_iLogicalAddress;
 815
 816   CCECBusDevice *destDevice = m_processor->GetDevice(destination);
 817   if (destDevice->m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 818     return bReturn;
 819
 820   MarkBusy();
 821   LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): POLL", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 822   bReturn = m_handler->TransmitPoll(m_iLogicalAddress, destination);
 823   LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? ">> POLL sent" : ">> POLL not sent");
 824
 825   CLockObject lock(m_mutex);
 826   if (bReturn)
 827   {
 828     m_iLastActive = GetTimeMs();
 829     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 830   }
 831   else
 832     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_NOT_PRESENT;
 833
 834   MarkReady();
 835   return bReturn;
 836 }
 837
 838 void CCECBusDevice::HandlePoll(const cec_logical_address destination)
 839 {
 840   if (destination >= 0 && destination < CECDEVICE_BROADCAST)
 841   {
 842     CCECBusDevice *device = m_processor->GetDevice(destination);
 843     if (device)
 844       device->HandlePollFrom(m_iLogicalAddress);
 845   }
 846 }
 847
 848 void CCECBusDevice::HandlePollFrom(const cec_logical_address initiator)
 849 {
 850   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< POLL: %s (%x) -> %s (%x)", ToString(initiator), initiator, ToString(m_iLogicalAddress), m_iLogicalAddress);
 851   m_bAwaitingReceiveFailed = true;
 852 }
 853
 854 bool CCECBusDevice::HandleReceiveFailed(void)
 855 {
 856   bool bReturn = m_bAwaitingReceiveFailed;
 857   m_bAwaitingReceiveFailed = false;
 858   return bReturn;
 859 }
 860
 861 cec_menu_state CCECBusDevice::GetMenuState(const cec_logical_address UNUSED(initiator))
 862 {
 863   CLockObject lock(m_mutex);
 864   return m_menuState;
 865 }
 866
 867 void CCECBusDevice::SetMenuState(const cec_menu_state state)
 868 {
 869   CLockObject lock(m_mutex);
 870   if (m_menuState != state)
 871   {
 872     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu state set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_menuState));
 873     m_menuState = state;
 874   }
 875 }
 876
 877 bool CCECBusDevice::TransmitMenuState(const cec_logical_address dest)
 878 {
 879   cec_menu_state menuState;
 880   {
 881     CLockObject lock(m_mutex);
 882     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): menu state '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_menuState));
 883     menuState = m_menuState;
 884   }
 885
 886   MarkBusy();
 887   bool bReturn = m_handler->TransmitMenuState(m_iLogicalAddress, dest, menuState);
 888   MarkReady();
 889   return bReturn;
 890 }
 891
 892 bool CCECBusDevice::ActivateSource(void)
 893 {
 894   MarkAsActiveSource();
 895   LIB_CEC->AddLog(CEC_LOG_DEBUG, "activating source '%s'", ToString(m_iLogicalAddress));
 896   MarkBusy();
 897   bool bReturn = m_handler->ActivateSource();
 898   MarkReady();
 899   return bReturn;
 900 }
 901
 902 bool CCECBusDevice::RequestActiveSource(bool bWaitForResponse /* = true */)
 903 {
 904   bool bReturn(false);
 905
 906   if (IsHandledByLibCEC())
 907   {
 908     MarkBusy();
 909     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< requesting active source");
 910
 911     bReturn = m_handler->TransmitRequestActiveSource(m_iLogicalAddress, bWaitForResponse);
 912     MarkReady();
 913   }
 914   return bReturn;
 915 }
 916
 917 void CCECBusDevice::MarkAsActiveSource(void)
 918 {
 919   CLockObject lock(m_mutex);
 920   if (!m_bActiveSource)
 921     LIB_CEC->AddLog(CEC_LOG_DEBUG, "making %s (%x) the active source", GetLogicalAddressName(), m_iLogicalAddress);
 922   else
 923     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%x) was already marked as active source", GetLogicalAddressName(), m_iLogicalAddress);
 924
 925   CECDEVICEVEC devices;
 926   m_processor->GetDevices()->Get(devices);
 927   for (CECDEVICEVEC::iterator it = devices.begin(); it != devices.end(); it++)
 928     if ((*it)->GetLogicalAddress() != m_iLogicalAddress)
 929       (*it)->MarkAsInactiveSource();
 930
 931   m_bActiveSource = true;
 932   SetPowerStatus(CEC_POWER_STATUS_ON);
 933 }
 934
 935 void CCECBusDevice::MarkAsInactiveSource(void)
 936 {
 937   {
 938     CLockObject lock(m_mutex);
 939     if (m_bActiveSource)
 940       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking %s (%X) as inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 941     m_bActiveSource = false;
 942   }
 943 }
 944
 945 bool CCECBusDevice::TransmitActiveSource(void)
 946 {
 947   bool bSendActiveSource(false);
 948   uint16_t iPhysicalAddress(CEC_INVALID_PHYSICAL_ADDRESS);
 949
 950   {
 951     CLockObject lock(m_mutex);
 952     if (!HasValidPhysicalAddress())
 953     {
 954       LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X) has an invalid physical address (%04x), not sending active source commands", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 955       return false;
 956     }
 957
 958     iPhysicalAddress = m_iPhysicalAddress;
 959
 960     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 961       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 962     else if (m_bActiveSource)
 963     {
 964       LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): active source (%4x)", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 965       bSendActiveSource = true;
 966     }
 967     else
 968       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not the active source", GetLogicalAddressName(), m_iLogicalAddress);
 969   }
 970
 971   bool bActiveSourceSent(false);
 972   if (bSendActiveSource)
 973   {
 974     MarkBusy();
 975     bActiveSourceSent = m_handler->TransmitActiveSource(m_iLogicalAddress, iPhysicalAddress);
 976     MarkReady();
 977   }
 978
 979   return bActiveSourceSent;
 980 }
 981
 982 bool CCECBusDevice::TransmitImageViewOn(void)
 983 {
 984   {
 985     CLockObject lock(m_mutex);
 986     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 987     {
 988       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 989       return false;
 990     }
 991   }
 992
 993   bool bImageViewOnSent(false);
 994   MarkBusy();
 995   bImageViewOnSent = m_handler->TransmitImageViewOn(m_iLogicalAddress, CECDEVICE_TV);
 996   MarkReady();
 997   return bImageViewOnSent;
 998 }
 999
1000 bool CCECBusDevice::TransmitInactiveSource(void)
1001 {
1002   uint16_t iPhysicalAddress;
1003   {
1004     CLockObject lock(m_mutex);
1005     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): inactive source", GetLogicalAddressName(), m_iLogicalAddress);
1006     iPhysicalAddress = m_iPhysicalAddress;
1007   }
1008
1009   MarkBusy();
1010   bool bReturn = m_handler->TransmitInactiveSource(m_iLogicalAddress, iPhysicalAddress);
1011   MarkReady();
1012   return bReturn;
1013 }
1014
1015 bool CCECBusDevice::TransmitPendingActiveSourceCommands(void)
1016 {
1017   MarkBusy();
1018   bool bReturn = m_handler->ActivateSource(true);
1019   MarkReady();
1020   return bReturn;
1021 }
1022
1023 void CCECBusDevice::SetStreamPath(uint16_t iNewAddress, uint16_t iOldAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */)
1024 {
1025   CLockObject lock(m_mutex);
1026   if (iNewAddress != m_iStreamPath)
1027   {
1028     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): stream path changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, iOldAddress == 0 ? m_iStreamPath : iOldAddress, iNewAddress);
1029     m_iStreamPath = iNewAddress;
1030   }
1031
1032   if (!LIB_CEC->IsValidPhysicalAddress(iNewAddress))
1033     return;
1034
1035   CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
1036   if (device)
1037   {
1038     // if a device is found with the new physical address, mark it as active, which will automatically mark all other devices as inactive
1039     device->MarkAsActiveSource();
1040   }
1041   else
1042   {
1043     // try to find the device with the old address, and mark it as inactive when found
1044     device = m_processor->GetDeviceByPhysicalAddress(iOldAddress);
1045     if (device)
1046       device->MarkAsInactiveSource();
1047   }
1048 }
1049
1050 bool CCECBusDevice::PowerOn(const cec_logical_address initiator)
1051 {
1052   bool bReturn(false);
1053   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1054
1055   MarkBusy();
1056   cec_power_status currentStatus = GetPowerStatus(initiator, false);
1057   if (currentStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON &&
1058     currentStatus != CEC_POWER_STATUS_ON)
1059   {
1060     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< powering on '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
1061     if (m_handler->PowerOn(initiator, m_iLogicalAddress))
1062     {
1063       SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
1064       bReturn = true;
1065     }
1066   }
1067   else
1068   {
1069     LIB_CEC->AddLog(CEC_LOG_NOTICE, "'%s' (%X) is already '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(currentStatus));
1070   }
1071
1072   MarkReady();
1073   return bReturn;
1074 }
1075
1076 bool CCECBusDevice::Standby(const cec_logical_address initiator)
1077 {
1078   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1079
1080   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< putting '%s' (%X) in standby mode", GetLogicalAddressName(), m_iLogicalAddress);
1081   MarkBusy();
1082   bool bReturn = m_handler->TransmitStandby(initiator, m_iLogicalAddress);
1083   MarkReady();
1084   return bReturn;
1085 }
1086
1087 bool CCECBusDevice::NeedsPoll(void)
1088 {
1089   bool bSendPoll(false);
1090   cec_logical_address pollAddress(CECDEVICE_UNKNOWN);
1091   switch (m_iLogicalAddress)
1092   {
1093   case CECDEVICE_PLAYBACKDEVICE3:
1094     pollAddress = CECDEVICE_PLAYBACKDEVICE2;
1095     break;
1096   case CECDEVICE_PLAYBACKDEVICE2:
1097     pollAddress = CECDEVICE_PLAYBACKDEVICE1;
1098     break;
1099   case CECDEVICE_RECORDINGDEVICE3:
1100     pollAddress = CECDEVICE_RECORDINGDEVICE2;
1101     break;
1102   case CECDEVICE_RECORDINGDEVICE2:
1103     pollAddress = CECDEVICE_RECORDINGDEVICE1;
1104     break;
1105   case CECDEVICE_TUNER4:
1106     pollAddress = CECDEVICE_TUNER3;
1107     break;
1108   case CECDEVICE_TUNER3:
1109     pollAddress = CECDEVICE_TUNER2;
1110     break;
1111   case CECDEVICE_TUNER2:
1112     pollAddress = CECDEVICE_TUNER1;
1113     break;
1114   case CECDEVICE_AUDIOSYSTEM:
1115   case CECDEVICE_PLAYBACKDEVICE1:
1116   case CECDEVICE_RECORDINGDEVICE1:
1117   case CECDEVICE_TUNER1:
1118   case CECDEVICE_TV:
1119     bSendPoll = true;
1120     break;
1121   default:
1122     break;
1123   }
1124
1125   if (!bSendPoll && pollAddress != CECDEVICE_UNKNOWN)
1126   {
1127     CCECBusDevice *device = m_processor->GetDevice(pollAddress);
1128     if (device)
1129     {
1130       cec_bus_device_status status = device->GetStatus();
1131       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
1132     }
1133     else
1134     {
1135       bSendPoll = true;
1136     }
1137   }
1138
1139   return bSendPoll;
1140 }
1141
1142 void CCECBusDevice::CheckVendorIdRequested(const cec_logical_address initiator)
1143 {
1144   bool bRequestVendorId(false);
1145   {
1146     CLockObject lock(m_mutex);
1147     bRequestVendorId = !m_bVendorIdRequested;
1148     m_bVendorIdRequested = true;
1149   }
1150
1151   if (bRequestVendorId)
1152   {
1153     ReplaceHandler(false);
1154     GetVendorId(initiator);
1155   }
1156 }
1157 //@}
1158
1159 CCECAudioSystem *CCECBusDevice::AsAudioSystem(void)
1160 {
1161   return AsAudioSystem(this);
1162 }
1163
1164 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(void)
1165 {
1166   return AsPlaybackDevice(this);
1167 }
1168
1169 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(void)
1170 {
1171   return AsRecordingDevice(this);
1172 }
1173
1174 CCECTuner *CCECBusDevice::AsTuner(void)
1175 {
1176   return AsTuner(this);
1177 }
1178
1179 CCECTV *CCECBusDevice::AsTV(void)
1180 {
1181   return AsTV(this);
1182 }
1183
1184 CCECAudioSystem *CCECBusDevice::AsAudioSystem(CCECBusDevice *device)
1185 {
1186   if (device && device->GetType() == CEC_DEVICE_TYPE_AUDIO_SYSTEM)
1187     return static_cast<CCECAudioSystem *>(device);
1188   return NULL;
1189 }
1190
1191 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(CCECBusDevice *device)
1192 {
1193   if (device &&
1194       (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
1195        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
1196     return static_cast<CCECPlaybackDevice *>(device);
1197   return NULL;
1198 }
1199
1200 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(CCECBusDevice *device)
1201 {
1202   if (device && device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
1203     return static_cast<CCECRecordingDevice *>(device);
1204   return NULL;
1205 }
1206
1207 CCECTuner *CCECBusDevice::AsTuner(CCECBusDevice *device)
1208 {
1209   if (device && device->GetType() == CEC_DEVICE_TYPE_TUNER)
1210     return static_cast<CCECTuner *>(device);
1211   return NULL;
1212 }
1213
1214 CCECTV *CCECBusDevice::AsTV(CCECBusDevice *device)
1215 {
1216   if (device && device->GetType() == CEC_DEVICE_TYPE_TV)
1217     return static_cast<CCECTV *>(device);
1218   return NULL;
1219 }
1220
1221 void CCECBusDevice::MarkBusy(void)
1222 {
1223   CLockObject handlerLock(m_handlerMutex);
1224   ++m_iHandlerUseCount;
1225 }
1226
1227 void CCECBusDevice::MarkReady(void)
1228 {
1229   CLockObject handlerLock(m_handlerMutex);
1230   if (m_iHandlerUseCount > 0)
1231     --m_iHandlerUseCount;
1232 }
1233
1234 bool CCECBusDevice::TryLogicalAddress(void)
1235 {
1236   LIB_CEC->AddLog(CEC_LOG_DEBUG, "trying logical address '%s'", GetLogicalAddressName());
1237
1238   if (!TransmitPoll(m_iLogicalAddress))
1239   {
1240     LIB_CEC->AddLog(CEC_LOG_NOTICE, "using logical address '%s'", GetLogicalAddressName());
1241     SetDeviceStatus(CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
1242
1243     return true;
1244   }
1245
1246   LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address '%s' already taken", GetLogicalAddressName());
1247   SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
1248   return false;
1249 }
1250
1251 CCECClient *CCECBusDevice::GetClient(void)
1252 {
1253   return m_processor->GetClient(m_iLogicalAddress);
1254 }