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
 178     /* don't call GetStatus() here, just read the value with the mutex locked */
 179     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC && command.opcode_set == 1)
 180       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 181
 182     MarkBusy();
 183   }
 184
 185   /* handle the command */
 186   bHandled = m_handler->HandleCommand(command);
 187
 188   /* change status to present */
 189   if (bHandled && GetLogicalAddress() != CECDEVICE_BROADCAST)
 190   {
 191     CLockObject lock(m_mutex);
 192     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 193     {
 194       if (m_deviceStatus != CEC_DEVICE_STATUS_PRESENT)
 195         LIB_CEC->AddLog(CEC_LOG_DEBUG, "device %s (%x) status changed to present after command %s", GetLogicalAddressName(), (uint8_t)GetLogicalAddress(), ToString(command.opcode));
 196       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 197     }
 198   }
 199
 200   MarkReady();
 201   return bHandled;
 202 }
 203
 204 const char* CCECBusDevice::GetLogicalAddressName(void) const
 205 {
 206   return ToString(m_iLogicalAddress);
 207 }
 208
 209 bool CCECBusDevice::IsPresent(void)
 210 {
 211   CLockObject lock(m_mutex);
 212   return m_deviceStatus == CEC_DEVICE_STATUS_PRESENT;
 213 }
 214
 215 bool CCECBusDevice::IsHandledByLibCEC(void)
 216 {
 217   CLockObject lock(m_mutex);
 218   return m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC;
 219 }
 220
 221 void CCECBusDevice::SetUnsupportedFeature(cec_opcode opcode)
 222 {
 223   // some commands should never be marked as unsupported
 224   if (opcode == CEC_OPCODE_VENDOR_COMMAND ||
 225       opcode == CEC_OPCODE_VENDOR_COMMAND_WITH_ID ||
 226       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN ||
 227       opcode == CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP ||
 228       opcode == CEC_OPCODE_ABORT ||
 229       opcode == CEC_OPCODE_FEATURE_ABORT ||
 230       opcode == CEC_OPCODE_NONE)
 231     return;
 232
 233   {
 234     CLockObject lock(m_mutex);
 235     if (m_unsupportedFeatures.find(opcode) == m_unsupportedFeatures.end())
 236     {
 237       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking opcode '%s' as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 238       m_unsupportedFeatures.insert(opcode);
 239     }
 240   }
 241
 242   // signal threads that are waiting for a reponse
 243   MarkBusy();
 244   SignalOpcode(cec_command::GetResponseOpcode(opcode));
 245   MarkReady();
 246 }
 247
 248 bool CCECBusDevice::IsUnsupportedFeature(cec_opcode opcode)
 249 {
 250   CLockObject lock(m_mutex);
 251   bool bUnsupported = (m_unsupportedFeatures.find(opcode) != m_unsupportedFeatures.end());
 252   if (bUnsupported)
 253     LIB_CEC->AddLog(CEC_LOG_DEBUG, "'%s' is marked as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 254   return bUnsupported;
 255 }
 256
 257 bool CCECBusDevice::TransmitKeypress(const cec_logical_address initiator, cec_user_control_code key, bool bWait /* = true */)
 258 {
 259   MarkBusy();
 260   bool bReturn = m_handler->TransmitKeypress(initiator, m_iLogicalAddress, key, bWait);
 261   MarkReady();
 262   return bReturn;
 263 }
 264
 265 bool CCECBusDevice::TransmitKeyRelease(const cec_logical_address initiator, bool bWait /* = true */)
 266 {
 267   MarkBusy();
 268   bool bReturn = m_handler->TransmitKeyRelease(initiator, m_iLogicalAddress, bWait);
 269   MarkReady();
 270   return bReturn;
 271 }
 272
 273 cec_version CCECBusDevice::GetCecVersion(const cec_logical_address initiator, bool bUpdate /* = false */)
 274 {
 275   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 276   bool bRequestUpdate(false);
 277   {
 278     CLockObject lock(m_mutex);
 279     bRequestUpdate = bIsPresent &&
 280         (bUpdate || m_cecVersion == CEC_VERSION_UNKNOWN);
 281   }
 282
 283   if (bRequestUpdate)
 284   {
 285     CheckVendorIdRequested(initiator);
 286     RequestCecVersion(initiator);
 287   }
 288
 289   CLockObject lock(m_mutex);
 290   return m_cecVersion;
 291 }
 292
 293 void CCECBusDevice::SetCecVersion(const cec_version newVersion)
 294 {
 295   CLockObject lock(m_mutex);
 296   if (m_cecVersion != newVersion)
 297     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): CEC version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(newVersion));
 298   m_cecVersion = newVersion;
 299 }
 300
 301 bool CCECBusDevice::RequestCecVersion(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 302 {
 303   bool bReturn(false);
 304
 305   if (!IsHandledByLibCEC() &&
 306       !IsUnsupportedFeature(CEC_OPCODE_GET_CEC_VERSION))
 307   {
 308     MarkBusy();
 309     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting CEC version of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 310     bReturn = m_handler->TransmitRequestCecVersion(initiator, m_iLogicalAddress, bWaitForResponse);
 311     MarkReady();
 312   }
 313   return bReturn;
 314 }
 315
 316 bool CCECBusDevice::TransmitCECVersion(const cec_logical_address destination, bool bIsReply)
 317 {
 318   cec_version version;
 319   {
 320     CLockObject lock(m_mutex);
 321     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): cec version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_cecVersion));
 322     version = m_cecVersion;
 323   }
 324
 325   MarkBusy();
 326   bool bReturn = m_handler->TransmitCECVersion(m_iLogicalAddress, destination, version, bIsReply);
 327   MarkReady();
 328   return bReturn;
 329 }
 330
 331 cec_menu_language &CCECBusDevice::GetMenuLanguage(const cec_logical_address initiator, bool bUpdate /* = false */)
 332 {
 333   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 334   bool bRequestUpdate(false);
 335   {
 336     CLockObject lock(m_mutex);
 337     bRequestUpdate = (bIsPresent &&
 338         (bUpdate || !strcmp(m_menuLanguage.language, "???")));
 339   }
 340
 341   if (bRequestUpdate)
 342   {
 343     CheckVendorIdRequested(initiator);
 344     RequestMenuLanguage(initiator);
 345   }
 346
 347   CLockObject lock(m_mutex);
 348   return m_menuLanguage;
 349 }
 350
 351 void CCECBusDevice::SetMenuLanguage(const char *strLanguage)
 352 {
 353   if (!strLanguage)
 354     return;
 355
 356   CLockObject lock(m_mutex);
 357   if (strcmp(strLanguage, m_menuLanguage.language))
 358   {
 359     memcpy(m_menuLanguage.language, strLanguage, 3);
 360     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu language set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, m_menuLanguage.language);
 361   }
 362 }
 363
 364 void CCECBusDevice::SetMenuLanguage(const cec_menu_language &language)
 365 {
 366   if (language.device == m_iLogicalAddress)
 367     SetMenuLanguage(language.language);
 368 }
 369
 370 bool CCECBusDevice::RequestMenuLanguage(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 371 {
 372   bool bReturn(false);
 373
 374   if (!IsHandledByLibCEC() &&
 375       !IsUnsupportedFeature(CEC_OPCODE_GET_MENU_LANGUAGE))
 376   {
 377     MarkBusy();
 378     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting menu language of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 379     bReturn = m_handler->TransmitRequestMenuLanguage(initiator, m_iLogicalAddress, bWaitForResponse);
 380     MarkReady();
 381   }
 382   return bReturn;
 383 }
 384
 385 bool CCECBusDevice::TransmitSetMenuLanguage(const cec_logical_address destination, bool bIsReply)
 386 {
 387   bool bReturn(false);
 388   cec_menu_language language;
 389   {
 390     CLockObject lock(m_mutex);
 391     language = m_menuLanguage;
 392   }
 393
 394   char lang[3];
 395   {
 396     CLockObject lock(m_mutex);
 397     lang[0] = language.language[0];
 398     lang[1] = language.language[1];
 399     lang[2] = language.language[2];
 400   }
 401
 402   MarkBusy();
 403   if (lang[0] == '?' && lang[1] == '?' && lang[2] == '?')
 404   {
 405     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): menu language feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 406     m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 407     bReturn = true;
 408   }
 409   else
 410   {
 411     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> broadcast (F): menu language '%s'", GetLogicalAddressName(), m_iLogicalAddress, lang);
 412     bReturn = m_handler->TransmitSetMenuLanguage(m_iLogicalAddress, lang, bIsReply);
 413   }
 414   MarkReady();
 415   return bReturn;
 416 }
 417
 418 bool CCECBusDevice::TransmitOSDString(const cec_logical_address destination, cec_display_control duration, const char *strMessage, bool bIsReply)
 419 {
 420   bool bReturn(false);
 421   if (!m_processor->GetDevice(destination)->IsUnsupportedFeature(CEC_OPCODE_SET_OSD_STRING))
 422   {
 423     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): display OSD message '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, strMessage);
 424     MarkBusy();
 425     bReturn = m_handler->TransmitOSDString(m_iLogicalAddress, destination, duration, strMessage, bIsReply);
 426     MarkReady();
 427   }
 428   return bReturn;
 429 }
 430
 431 CStdString CCECBusDevice::GetCurrentOSDName(void)
 432 {
 433   CLockObject lock(m_mutex);
 434   return m_strDeviceName;
 435 }
 436
 437 CStdString CCECBusDevice::GetOSDName(const cec_logical_address initiator, bool bUpdate /* = false */)
 438 {
 439   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 440   bool bRequestUpdate(false);
 441   {
 442     CLockObject lock(m_mutex);
 443     bRequestUpdate = bIsPresent &&
 444         (bUpdate || m_strDeviceName.Equals(ToString(m_iLogicalAddress))) &&
 445         m_type != CEC_DEVICE_TYPE_TV;
 446   }
 447
 448   if (bRequestUpdate)
 449   {
 450     CheckVendorIdRequested(initiator);
 451     RequestOSDName(initiator);
 452   }
 453
 454   CLockObject lock(m_mutex);
 455   return m_strDeviceName;
 456 }
 457
 458 void CCECBusDevice::SetOSDName(CStdString strName)
 459 {
 460   CLockObject lock(m_mutex);
 461   if (m_strDeviceName != strName)
 462   {
 463     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): osd name set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, strName.c_str());
 464     m_strDeviceName = strName;
 465   }
 466 }
 467
 468 bool CCECBusDevice::RequestOSDName(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 469 {
 470   bool bReturn(false);
 471
 472   if (!IsHandledByLibCEC() &&
 473       !IsUnsupportedFeature(CEC_OPCODE_GIVE_OSD_NAME))
 474   {
 475     MarkBusy();
 476     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting OSD name of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 477     bReturn = m_handler->TransmitRequestOSDName(initiator, m_iLogicalAddress, bWaitForResponse);
 478     MarkReady();
 479   }
 480   return bReturn;
 481 }
 482
 483 bool CCECBusDevice::TransmitOSDName(const cec_logical_address destination, bool bIsReply)
 484 {
 485   CStdString strDeviceName;
 486   {
 487     CLockObject lock(m_mutex);
 488     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): OSD name '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, m_strDeviceName.c_str());
 489     strDeviceName = m_strDeviceName;
 490   }
 491
 492   MarkBusy();
 493   bool bReturn = m_handler->TransmitOSDName(m_iLogicalAddress, destination, strDeviceName, bIsReply);
 494   MarkReady();
 495   return bReturn;
 496 }
 497
 498 bool CCECBusDevice::HasValidPhysicalAddress(void)
 499 {
 500   CLockObject lock(m_mutex);
 501   return CLibCEC::IsValidPhysicalAddress(m_iPhysicalAddress);
 502 }
 503
 504 uint16_t CCECBusDevice::GetCurrentPhysicalAddress(void)
 505 {
 506   CLockObject lock(m_mutex);
 507   return m_iPhysicalAddress;
 508 }
 509
 510 uint16_t CCECBusDevice::GetPhysicalAddress(const cec_logical_address initiator, bool bSuppressUpdate /* = false */)
 511 {
 512   if (!bSuppressUpdate)
 513   {
 514     bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 515     bool bRequestUpdate(false);
 516     {
 517       CLockObject lock(m_mutex);
 518       bRequestUpdate = bIsPresent && m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS;
 519     }
 520
 521     if (bRequestUpdate)
 522     {
 523       CheckVendorIdRequested(initiator);
 524       if (!RequestPhysicalAddress(initiator))
 525         LIB_CEC->AddLog(CEC_LOG_ERROR, "failed to request the physical address");
 526     }
 527   }
 528
 529   CLockObject lock(m_mutex);
 530   return m_iPhysicalAddress;
 531 }
 532
 533 bool CCECBusDevice::SetPhysicalAddress(uint16_t iNewAddress)
 534 {
 535   CLockObject lock(m_mutex);
 536   if (iNewAddress > 0 && m_iPhysicalAddress != iNewAddress)
 537   {
 538     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): physical address changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress, iNewAddress);
 539     m_iPhysicalAddress = iNewAddress;
 540   }
 541   return true;
 542 }
 543
 544 bool CCECBusDevice::RequestPhysicalAddress(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 545 {
 546   bool bReturn(false);
 547
 548   if (!IsHandledByLibCEC())
 549   {
 550     MarkBusy();
 551     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting physical address of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 552     bReturn = m_handler->TransmitRequestPhysicalAddress(initiator, m_iLogicalAddress, bWaitForResponse);
 553     MarkReady();
 554   }
 555   return bReturn;
 556 }
 557
 558 bool CCECBusDevice::TransmitPhysicalAddress(bool bIsReply)
 559 {
 560   uint16_t iPhysicalAddress;
 561   cec_device_type type;
 562   {
 563     CLockObject lock(m_mutex);
 564     if (m_iPhysicalAddress == CEC_INVALID_PHYSICAL_ADDRESS)
 565       return false;
 566
 567     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> broadcast (F): physical adddress %4x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 568     iPhysicalAddress = m_iPhysicalAddress;
 569     type = m_type;
 570   }
 571
 572   MarkBusy();
 573   bool bReturn = m_handler->TransmitPhysicalAddress(m_iLogicalAddress, iPhysicalAddress, type, bIsReply);
 574   MarkReady();
 575   return bReturn;
 576 }
 577
 578 cec_power_status CCECBusDevice::GetCurrentPowerStatus(void)
 579 {
 580   CLockObject lock(m_mutex);
 581   return m_powerStatus;
 582 }
 583
 584 cec_power_status CCECBusDevice::GetPowerStatus(const cec_logical_address initiator, bool bUpdate /* = false */)
 585 {
 586   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 587   bool bRequestUpdate(false);
 588   {
 589     CLockObject lock(m_mutex);
 590     bRequestUpdate = (bIsPresent &&
 591         (bUpdate || m_powerStatus == CEC_POWER_STATUS_UNKNOWN ||
 592             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON ||
 593             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY ||
 594             GetTimeMs() - m_iLastPowerStateUpdate >= CEC_POWER_STATE_REFRESH_TIME));
 595   }
 596
 597   if (bRequestUpdate)
 598   {
 599     CheckVendorIdRequested(initiator);
 600     RequestPowerStatus(initiator);
 601   }
 602
 603   CLockObject lock(m_mutex);
 604   return m_powerStatus;
 605 }
 606
 607 void CCECBusDevice::SetPowerStatus(const cec_power_status powerStatus)
 608 {
 609   CLockObject lock(m_mutex);
 610   if (m_powerStatus != powerStatus)
 611   {
 612     m_iLastPowerStateUpdate = GetTimeMs();
 613     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): power status changed from '%s' to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_powerStatus), ToString(powerStatus));
 614     m_powerStatus = powerStatus;
 615   }
 616 }
 617
 618 bool CCECBusDevice::RequestPowerStatus(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 619 {
 620   bool bReturn(false);
 621
 622   if (!IsHandledByLibCEC() &&
 623       !IsUnsupportedFeature(CEC_OPCODE_GIVE_DEVICE_POWER_STATUS))
 624   {
 625     MarkBusy();
 626     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting power status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 627     bReturn = m_handler->TransmitRequestPowerStatus(initiator, m_iLogicalAddress, bWaitForResponse);
 628     MarkReady();
 629   }
 630   return bReturn;
 631 }
 632
 633 bool CCECBusDevice::TransmitPowerState(const cec_logical_address destination, bool bIsReply)
 634 {
 635   cec_power_status state;
 636   {
 637     CLockObject lock(m_mutex);
 638     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination, ToString(m_powerStatus));
 639     state = m_powerStatus;
 640   }
 641
 642   MarkBusy();
 643   bool bReturn = m_handler->TransmitPowerState(m_iLogicalAddress, destination, state, bIsReply);
 644   MarkReady();
 645   return bReturn;
 646 }
 647
 648 cec_vendor_id CCECBusDevice::GetCurrentVendorId(void)
 649 {
 650   CLockObject lock(m_mutex);
 651   return m_vendor;
 652 }
 653
 654 cec_vendor_id CCECBusDevice::GetVendorId(const cec_logical_address initiator, bool bUpdate /* = false */)
 655 {
 656   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 657   bool bRequestUpdate(false);
 658   {
 659     CLockObject lock(m_mutex);
 660     bRequestUpdate = (bIsPresent &&
 661         (bUpdate || m_vendor == CEC_VENDOR_UNKNOWN));
 662   }
 663
 664   if (bRequestUpdate)
 665     RequestVendorId(initiator);
 666
 667   CLockObject lock(m_mutex);
 668   return m_vendor;
 669 }
 670
 671 const char *CCECBusDevice::GetVendorName(const cec_logical_address initiator, bool bUpdate /* = false */)
 672 {
 673   return ToString(GetVendorId(initiator, bUpdate));
 674 }
 675
 676 bool CCECBusDevice::SetVendorId(uint64_t iVendorId)
 677 {
 678   bool bVendorChanged(false);
 679
 680   {
 681     CLockObject lock(m_mutex);
 682     bVendorChanged = (m_vendor != (cec_vendor_id)iVendorId);
 683     m_vendor = (cec_vendor_id)iVendorId;
 684   }
 685
 686   if (bVendorChanged)
 687     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): vendor = %s (%06x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_vendor), m_vendor);
 688
 689   return bVendorChanged;
 690 }
 691
 692 bool CCECBusDevice::RequestVendorId(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
 693 {
 694   bool bReturn(false);
 695
 696   if (!IsHandledByLibCEC() && initiator != CECDEVICE_UNKNOWN)
 697   {
 698     MarkBusy();
 699     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting vendor ID of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 700     bReturn = m_handler->TransmitRequestVendorId(initiator, m_iLogicalAddress, bWaitForResponse);
 701     MarkReady();
 702
 703     if (bWaitForResponse)
 704       ReplaceHandler(true);
 705   }
 706   return bReturn;
 707 }
 708
 709 bool CCECBusDevice::TransmitVendorID(const cec_logical_address destination, bool bSendAbort, bool bIsReply)
 710 {
 711   bool bReturn(false);
 712   uint64_t iVendorId;
 713   {
 714     CLockObject lock(m_mutex);
 715     iVendorId = (uint64_t)m_vendor;
 716   }
 717
 718   MarkBusy();
 719   if (iVendorId == CEC_VENDOR_UNKNOWN)
 720   {
 721     if (bSendAbort)
 722     {
 723       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): vendor id feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(destination), destination);
 724       m_processor->TransmitAbort(m_iLogicalAddress, destination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 725       bReturn = true;
 726     }
 727   }
 728   else
 729   {
 730     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);
 731     bReturn = m_handler->TransmitVendorID(m_iLogicalAddress, iVendorId, bIsReply);
 732   }
 733   MarkReady();
 734   return bReturn;
 735 }
 736
 737 cec_bus_device_status CCECBusDevice::GetStatus(bool bForcePoll /* = false */, bool bSuppressPoll /* = false */)
 738 {
 739   if (m_iLogicalAddress == CECDEVICE_BROADCAST)
 740     return CEC_DEVICE_STATUS_NOT_PRESENT;
 741
 742   cec_bus_device_status status(CEC_DEVICE_STATUS_UNKNOWN);
 743   bool bNeedsPoll(false);
 744
 745   {
 746     CLockObject lock(m_mutex);
 747     status = m_deviceStatus;
 748     bNeedsPoll = !bSuppressPoll &&
 749         (bForcePoll || m_deviceStatus == CEC_DEVICE_STATUS_UNKNOWN);
 750   }
 751
 752   if (bNeedsPoll)
 753   {
 754     bool bPollAcked(false);
 755     if (bNeedsPoll && NeedsPoll())
 756       bPollAcked = m_processor->PollDevice(m_iLogicalAddress);
 757
 758     status = bPollAcked ? CEC_DEVICE_STATUS_PRESENT : CEC_DEVICE_STATUS_NOT_PRESENT;
 759     SetDeviceStatus(status);
 760   }
 761
 762   return status;
 763 }
 764
 765 void CCECBusDevice::SetDeviceStatus(const cec_bus_device_status newStatus, cec_version libCECSpecVersion /* = CEC_VERSION_1_4 */)
 766 {
 767   {
 768     CLockObject lock(m_mutex);
 769     switch (newStatus)
 770     {
 771     case CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC:
 772       if (m_deviceStatus != newStatus)
 773         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'handled by libCEC'", GetLogicalAddressName(), m_iLogicalAddress);
 774       SetPowerStatus   (CEC_POWER_STATUS_ON);
 775       SetVendorId      (CEC_VENDOR_UNKNOWN);
 776       SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 777       SetCecVersion    (libCECSpecVersion);
 778       SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 779       MarkAsInactiveSource();
 780       m_iLastActive   = 0;
 781       m_deviceStatus  = newStatus;
 782       break;
 783     case CEC_DEVICE_STATUS_PRESENT:
 784       if (m_deviceStatus != newStatus)
 785         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'present'", GetLogicalAddressName(), m_iLogicalAddress);
 786       m_deviceStatus = newStatus;
 787       break;
 788     case CEC_DEVICE_STATUS_NOT_PRESENT:
 789       if (m_deviceStatus != newStatus)
 790       {
 791         LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'not present'", GetLogicalAddressName(), m_iLogicalAddress);
 792         ResetDeviceStatus();
 793         m_deviceStatus = newStatus;
 794       }
 795       break;
 796     default:
 797       ResetDeviceStatus();
 798       break;
 799     }
 800   }
 801 }
 802
 803 void CCECBusDevice::ResetDeviceStatus(void)
 804 {
 805   CLockObject lock(m_mutex);
 806   SetPowerStatus   (CEC_POWER_STATUS_UNKNOWN);
 807   SetVendorId      (CEC_VENDOR_UNKNOWN);
 808   SetMenuState     (CEC_MENU_STATE_ACTIVATED);
 809   SetCecVersion    (CEC_VERSION_UNKNOWN);
 810   SetStreamPath    (CEC_INVALID_PHYSICAL_ADDRESS);
 811   SetOSDName       (ToString(m_iLogicalAddress));
 812   MarkAsInactiveSource();
 813
 814   m_iLastActive = 0;
 815   m_bVendorIdRequested = false;
 816   m_unsupportedFeatures.clear();
 817   m_waitForResponse->Clear();
 818
 819   if (m_deviceStatus != CEC_DEVICE_STATUS_UNKNOWN)
 820     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): device status changed into 'unknown'", GetLogicalAddressName(), m_iLogicalAddress);
 821   m_deviceStatus = CEC_DEVICE_STATUS_UNKNOWN;
 822 }
 823
 824 bool CCECBusDevice::TransmitPoll(const cec_logical_address dest, bool bIsReply)
 825 {
 826   bool bReturn(false);
 827   cec_logical_address destination(dest);
 828   if (destination == CECDEVICE_UNKNOWN)
 829     destination = m_iLogicalAddress;
 830
 831   CCECBusDevice *destDevice = m_processor->GetDevice(destination);
 832   if (destDevice->m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 833     return bReturn;
 834
 835   MarkBusy();
 836   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): POLL", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 837   bReturn = m_handler->TransmitPoll(m_iLogicalAddress, destination, bIsReply);
 838   LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? ">> POLL sent" : ">> POLL not sent");
 839
 840   CLockObject lock(m_mutex);
 841   if (bReturn)
 842   {
 843     m_iLastActive = GetTimeMs();
 844     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 845   }
 846   else
 847     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_NOT_PRESENT;
 848
 849   MarkReady();
 850   return bReturn;
 851 }
 852
 853 void CCECBusDevice::HandlePoll(const cec_logical_address destination)
 854 {
 855   if (destination >= 0 && destination < CECDEVICE_BROADCAST)
 856   {
 857     CCECBusDevice *device = m_processor->GetDevice(destination);
 858     if (device)
 859       device->HandlePollFrom(m_iLogicalAddress);
 860   }
 861 }
 862
 863 void CCECBusDevice::HandlePollFrom(const cec_logical_address initiator)
 864 {
 865   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< POLL: %s (%x) -> %s (%x)", ToString(initiator), initiator, ToString(m_iLogicalAddress), m_iLogicalAddress);
 866   m_bAwaitingReceiveFailed = true;
 867 }
 868
 869 bool CCECBusDevice::HandleReceiveFailed(void)
 870 {
 871   bool bReturn = m_bAwaitingReceiveFailed;
 872   m_bAwaitingReceiveFailed = false;
 873   return bReturn;
 874 }
 875
 876 cec_menu_state CCECBusDevice::GetMenuState(const cec_logical_address UNUSED(initiator))
 877 {
 878   CLockObject lock(m_mutex);
 879   return m_menuState;
 880 }
 881
 882 void CCECBusDevice::SetMenuState(const cec_menu_state state)
 883 {
 884   CLockObject lock(m_mutex);
 885   if (m_menuState != state)
 886   {
 887     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): menu state set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_menuState));
 888     m_menuState = state;
 889   }
 890 }
 891
 892 bool CCECBusDevice::TransmitMenuState(const cec_logical_address dest, bool bIsReply)
 893 {
 894   cec_menu_state menuState;
 895   {
 896     CLockObject lock(m_mutex);
 897     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) -> %s (%X): menu state '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_menuState));
 898     menuState = m_menuState;
 899   }
 900
 901   MarkBusy();
 902   bool bReturn = m_handler->TransmitMenuState(m_iLogicalAddress, dest, menuState, bIsReply);
 903   MarkReady();
 904   return bReturn;
 905 }
 906
 907 bool CCECBusDevice::ActivateSource(uint64_t iDelay /* = 0 */)
 908 {
 909   MarkAsActiveSource();
 910   MarkBusy();
 911   bool bReturn(true);
 912   if (iDelay == 0)
 913   {
 914     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending active source message for '%s'", ToString(m_iLogicalAddress));
 915     bReturn = m_handler->ActivateSource();
 916   }
 917   else
 918   {
 919     LIB_CEC->AddLog(CEC_LOG_DEBUG, "scheduling active source message for '%s'", ToString(m_iLogicalAddress));
 920     m_handler->ScheduleActivateSource(iDelay);
 921   }
 922   MarkReady();
 923   return bReturn;
 924 }
 925
 926 bool CCECBusDevice::RequestActiveSource(bool bWaitForResponse /* = true */)
 927 {
 928   bool bReturn(false);
 929
 930   if (IsHandledByLibCEC())
 931   {
 932     MarkBusy();
 933     LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting active source");
 934
 935     bReturn = m_handler->TransmitRequestActiveSource(m_iLogicalAddress, bWaitForResponse);
 936     MarkReady();
 937   }
 938   return bReturn;
 939 }
 940
 941 void CCECBusDevice::MarkAsActiveSource(void)
 942 {
 943   bool bWasActivated(false);
 944
 945   // set the power status to powered on
 946   SetPowerStatus(CEC_POWER_STATUS_ON);
 947
 948   // mark this device as active source
 949   {
 950     CLockObject lock(m_mutex);
 951     if (!m_bActiveSource)
 952     {
 953       LIB_CEC->AddLog(CEC_LOG_DEBUG, "making %s (%x) the active source", GetLogicalAddressName(), m_iLogicalAddress);
 954       bWasActivated = true;
 955     }
 956     else
 957       LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%x) was already marked as active source", GetLogicalAddressName(), m_iLogicalAddress);
 958
 959     m_bActiveSource = true;
 960   }
 961
 962   // mark other devices as inactive sources
 963   CECDEVICEVEC devices;
 964   m_processor->GetDevices()->Get(devices);
 965   for (CECDEVICEVEC::iterator it = devices.begin(); it != devices.end(); it++)
 966     if ((*it)->GetLogicalAddress() != m_iLogicalAddress)
 967       (*it)->MarkAsInactiveSource();
 968
 969   if (bWasActivated)
 970   {
 971     CCECClient *client = GetClient();
 972     if (client)
 973       client->SourceActivated(m_iLogicalAddress);
 974   }
 975 }
 976
 977 void CCECBusDevice::MarkAsInactiveSource(void)
 978 {
 979   bool bWasDeactivated(false);
 980   {
 981     CLockObject lock(m_mutex);
 982     if (m_bActiveSource)
 983     {
 984       LIB_CEC->AddLog(CEC_LOG_DEBUG, "marking %s (%X) as inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 985       bWasDeactivated = true;
 986     }
 987     m_bActiveSource = false;
 988   }
 989
 990   if (bWasDeactivated)
 991   {
 992     CCECClient *client = GetClient();
 993     if (client)
 994       client->SourceDeactivated(m_iLogicalAddress);
 995   }
 996 }
 997
 998 bool CCECBusDevice::TransmitActiveSource(bool bIsReply)
 999 {
1000   bool bSendActiveSource(false);
1001   uint16_t iPhysicalAddress(CEC_INVALID_PHYSICAL_ADDRESS);
1002
1003   {
1004     CLockObject lock(m_mutex);
1005     if (!HasValidPhysicalAddress())
1006     {
1007       LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X) has an invalid physical address (%04x), not sending active source commands", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
1008       return false;
1009     }
1010
1011     iPhysicalAddress = m_iPhysicalAddress;
1012
1013     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
1014       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
1015     else if (m_bActiveSource)
1016     {
1017       LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): active source (%4x)", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
1018       bSendActiveSource = true;
1019     }
1020     else
1021       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not the active source", GetLogicalAddressName(), m_iLogicalAddress);
1022   }
1023
1024   bool bActiveSourceSent(false);
1025   if (bSendActiveSource)
1026   {
1027     MarkBusy();
1028     bActiveSourceSent = m_handler->TransmitActiveSource(m_iLogicalAddress, iPhysicalAddress, bIsReply);
1029     MarkReady();
1030   }
1031
1032   return bActiveSourceSent;
1033 }
1034
1035 bool CCECBusDevice::TransmitImageViewOn(void)
1036 {
1037   {
1038     CLockObject lock(m_mutex);
1039     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
1040     {
1041       LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
1042       return false;
1043     }
1044   }
1045
1046   bool bImageViewOnSent(false);
1047   MarkBusy();
1048   bImageViewOnSent = m_handler->TransmitImageViewOn(m_iLogicalAddress, CECDEVICE_TV);
1049   MarkReady();
1050   return bImageViewOnSent;
1051 }
1052
1053 bool CCECBusDevice::TransmitInactiveSource(void)
1054 {
1055   uint16_t iPhysicalAddress;
1056   {
1057     CLockObject lock(m_mutex);
1058     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): inactive source", GetLogicalAddressName(), m_iLogicalAddress);
1059     iPhysicalAddress = m_iPhysicalAddress;
1060   }
1061
1062   MarkBusy();
1063   bool bReturn = m_handler->TransmitInactiveSource(m_iLogicalAddress, iPhysicalAddress);
1064   MarkReady();
1065   return bReturn;
1066 }
1067
1068 bool CCECBusDevice::TransmitPendingActiveSourceCommands(void)
1069 {
1070   MarkBusy();
1071   bool bReturn = m_handler->ActivateSource(true);
1072   MarkReady();
1073   return bReturn;
1074 }
1075
1076 void CCECBusDevice::SetStreamPath(uint16_t iNewAddress, uint16_t iOldAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */)
1077 {
1078   CLockObject lock(m_mutex);
1079   if (iNewAddress != m_iStreamPath)
1080   {
1081     LIB_CEC->AddLog(CEC_LOG_DEBUG, "%s (%X): stream path changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, iOldAddress == 0 ? m_iStreamPath : iOldAddress, iNewAddress);
1082     m_iStreamPath = iNewAddress;
1083   }
1084
1085   if (!LIB_CEC->IsValidPhysicalAddress(iNewAddress))
1086     return;
1087
1088   CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
1089   if (device)
1090   {
1091     // if a device is found with the new physical address, mark it as active, which will automatically mark all other devices as inactive
1092     device->MarkAsActiveSource();
1093
1094     // respond with an active source message if this device is handled by libCEC
1095     if (device->IsHandledByLibCEC())
1096       device->TransmitActiveSource(true);
1097   }
1098   else
1099   {
1100     // try to find the device with the old address, and mark it as inactive when found
1101     device = m_processor->GetDeviceByPhysicalAddress(iOldAddress);
1102     if (device)
1103       device->MarkAsInactiveSource();
1104   }
1105 }
1106
1107 bool CCECBusDevice::PowerOn(const cec_logical_address initiator)
1108 {
1109   bool bReturn(false);
1110   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1111
1112   MarkBusy();
1113   cec_power_status currentStatus = GetPowerStatus(initiator, false);
1114   if (currentStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON &&
1115     currentStatus != CEC_POWER_STATUS_ON)
1116   {
1117     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< powering on '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
1118     if (m_handler->PowerOn(initiator, m_iLogicalAddress))
1119     {
1120       SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
1121       bReturn = true;
1122     }
1123   }
1124   else
1125   {
1126     LIB_CEC->AddLog(CEC_LOG_DEBUG, "'%s' (%X) is already '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(currentStatus));
1127   }
1128
1129   MarkReady();
1130   return bReturn;
1131 }
1132
1133 bool CCECBusDevice::Standby(const cec_logical_address initiator)
1134 {
1135   GetVendorId(initiator); // ensure that we got the vendor id, because the implementations vary per vendor
1136
1137   LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< putting '%s' (%X) in standby mode", GetLogicalAddressName(), m_iLogicalAddress);
1138   MarkBusy();
1139   bool bReturn = m_handler->TransmitStandby(initiator, m_iLogicalAddress);
1140   MarkReady();
1141   return bReturn;
1142 }
1143
1144 bool CCECBusDevice::NeedsPoll(void)
1145 {
1146   bool bSendPoll(false);
1147   cec_logical_address pollAddress(CECDEVICE_UNKNOWN);
1148   switch (m_iLogicalAddress)
1149   {
1150   case CECDEVICE_PLAYBACKDEVICE3:
1151     pollAddress = CECDEVICE_PLAYBACKDEVICE2;
1152     break;
1153   case CECDEVICE_PLAYBACKDEVICE2:
1154     pollAddress = CECDEVICE_PLAYBACKDEVICE1;
1155     break;
1156   case CECDEVICE_RECORDINGDEVICE3:
1157     pollAddress = CECDEVICE_RECORDINGDEVICE2;
1158     break;
1159   case CECDEVICE_RECORDINGDEVICE2:
1160     pollAddress = CECDEVICE_RECORDINGDEVICE1;
1161     break;
1162   case CECDEVICE_TUNER4:
1163     pollAddress = CECDEVICE_TUNER3;
1164     break;
1165   case CECDEVICE_TUNER3:
1166     pollAddress = CECDEVICE_TUNER2;
1167     break;
1168   case CECDEVICE_TUNER2:
1169     pollAddress = CECDEVICE_TUNER1;
1170     break;
1171   case CECDEVICE_AUDIOSYSTEM:
1172   case CECDEVICE_PLAYBACKDEVICE1:
1173   case CECDEVICE_RECORDINGDEVICE1:
1174   case CECDEVICE_TUNER1:
1175   case CECDEVICE_TV:
1176     bSendPoll = true;
1177     break;
1178   default:
1179     break;
1180   }
1181
1182   if (!bSendPoll && pollAddress != CECDEVICE_UNKNOWN)
1183   {
1184     CCECBusDevice *device = m_processor->GetDevice(pollAddress);
1185     if (device)
1186     {
1187       cec_bus_device_status status = device->GetStatus();
1188       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
1189     }
1190     else
1191     {
1192       bSendPoll = true;
1193     }
1194   }
1195
1196   return bSendPoll;
1197 }
1198
1199 void CCECBusDevice::CheckVendorIdRequested(const cec_logical_address initiator)
1200 {
1201   bool bRequestVendorId(false);
1202   {
1203     CLockObject lock(m_mutex);
1204     bRequestVendorId = !m_bVendorIdRequested;
1205     m_bVendorIdRequested = true;
1206   }
1207
1208   if (bRequestVendorId)
1209   {
1210     ReplaceHandler(false);
1211     GetVendorId(initiator);
1212   }
1213 }
1214 //@}
1215
1216 CCECAudioSystem *CCECBusDevice::AsAudioSystem(void)
1217 {
1218   return AsAudioSystem(this);
1219 }
1220
1221 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(void)
1222 {
1223   return AsPlaybackDevice(this);
1224 }
1225
1226 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(void)
1227 {
1228   return AsRecordingDevice(this);
1229 }
1230
1231 CCECTuner *CCECBusDevice::AsTuner(void)
1232 {
1233   return AsTuner(this);
1234 }
1235
1236 CCECTV *CCECBusDevice::AsTV(void)
1237 {
1238   return AsTV(this);
1239 }
1240
1241 CCECAudioSystem *CCECBusDevice::AsAudioSystem(CCECBusDevice *device)
1242 {
1243   if (device && device->GetType() == CEC_DEVICE_TYPE_AUDIO_SYSTEM)
1244     return static_cast<CCECAudioSystem *>(device);
1245   return NULL;
1246 }
1247
1248 CCECPlaybackDevice *CCECBusDevice::AsPlaybackDevice(CCECBusDevice *device)
1249 {
1250   if (device &&
1251       (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
1252        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
1253     return static_cast<CCECPlaybackDevice *>(device);
1254   return NULL;
1255 }
1256
1257 CCECRecordingDevice *CCECBusDevice::AsRecordingDevice(CCECBusDevice *device)
1258 {
1259   if (device && device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
1260     return static_cast<CCECRecordingDevice *>(device);
1261   return NULL;
1262 }
1263
1264 CCECTuner *CCECBusDevice::AsTuner(CCECBusDevice *device)
1265 {
1266   if (device && device->GetType() == CEC_DEVICE_TYPE_TUNER)
1267     return static_cast<CCECTuner *>(device);
1268   return NULL;
1269 }
1270
1271 CCECTV *CCECBusDevice::AsTV(CCECBusDevice *device)
1272 {
1273   if (device && device->GetType() == CEC_DEVICE_TYPE_TV)
1274     return static_cast<CCECTV *>(device);
1275   return NULL;
1276 }
1277
1278 void CCECBusDevice::MarkBusy(void)
1279 {
1280   CLockObject handlerLock(m_handlerMutex);
1281   ++m_iHandlerUseCount;
1282 }
1283
1284 void CCECBusDevice::MarkReady(void)
1285 {
1286   CLockObject handlerLock(m_handlerMutex);
1287   if (m_iHandlerUseCount > 0)
1288     --m_iHandlerUseCount;
1289 }
1290
1291 bool CCECBusDevice::TryLogicalAddress(cec_version libCECSpecVersion /* = CEC_VERSION_1_4 */)
1292 {
1293   LIB_CEC->AddLog(CEC_LOG_DEBUG, "trying logical address '%s'", GetLogicalAddressName());
1294
1295   if (!TransmitPoll(m_iLogicalAddress, false))
1296   {
1297     LIB_CEC->AddLog(CEC_LOG_DEBUG, "using logical address '%s'", GetLogicalAddressName());
1298     SetDeviceStatus(CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC, libCECSpecVersion);
1299
1300     return true;
1301   }
1302
1303   LIB_CEC->AddLog(CEC_LOG_DEBUG, "logical address '%s' already taken", GetLogicalAddressName());
1304   SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
1305   return false;
1306 }
1307
1308 CCECClient *CCECBusDevice::GetClient(void)
1309 {
1310   return m_processor->GetClient(m_iLogicalAddress);
1311 }
1312
1313 void CCECBusDevice::SignalOpcode(cec_opcode opcode)
1314 {
1315   m_waitForResponse->Received(opcode);
1316 }
1317
1318 bool CCECBusDevice::WaitForOpcode(cec_opcode opcode)
1319 {
1320   return m_waitForResponse->Wait(opcode);
1321 }