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 using namespace CEC;
  43 using namespace PLATFORM;
  44
  45 #define ToString(p) m_processor->ToString(p)
  46
  47 CCECBusDevice::CCECBusDevice(CCECProcessor *processor, cec_logical_address iLogicalAddress, uint16_t iPhysicalAddress) :
  48   m_type(CEC_DEVICE_TYPE_RESERVED),
  49   m_iPhysicalAddress(iPhysicalAddress),
  50   m_iStreamPath(0),
  51   m_iLogicalAddress(iLogicalAddress),
  52   m_powerStatus(CEC_POWER_STATUS_UNKNOWN),
  53   m_processor(processor),
  54   m_vendor(CEC_VENDOR_UNKNOWN),
  55   m_bReplaceHandler(false),
  56   m_menuState(CEC_MENU_STATE_ACTIVATED),
  57   m_bActiveSource(false),
  58   m_iLastActive(0),
  59   m_iLastPowerStateUpdate(0),
  60   m_cecVersion(CEC_VERSION_UNKNOWN),
  61   m_deviceStatus(CEC_DEVICE_STATUS_UNKNOWN),
  62   m_iHandlerUseCount(0),
  63   m_bAwaitingReceiveFailed(false)
  64 {
  65   m_handler = new CCECCommandHandler(this);
  66
  67   for (unsigned int iPtr = 0; iPtr < 4; iPtr++)
  68     m_menuLanguage.language[iPtr] = '?';
  69   m_menuLanguage.language[3] = 0;
  70   m_menuLanguage.device = iLogicalAddress;
  71
  72   m_strDeviceName = ToString(m_iLogicalAddress);
  73 }
  74
  75 CCECBusDevice::~CCECBusDevice(void)
  76 {
  77   delete m_handler;
  78 }
  79
  80 bool CCECBusDevice::HandleCommand(const cec_command &command)
  81 {
  82   bool bHandled(false);
  83
  84   /* update "last active" */
  85   {
  86     CLockObject lock(m_mutex);
  87     m_iLastActive = GetTimeMs();
  88
  89     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
  90       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
  91
  92     MarkBusy();
  93   }
  94
  95   /* handle the command */
  96   bHandled = m_handler->HandleCommand(command);
  97
  98   /* change status to present */
  99   if (bHandled)
 100   {
 101     CLockObject lock(m_mutex);
 102     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 103     {
 104       if (m_deviceStatus != CEC_DEVICE_STATUS_PRESENT)
 105         CLibCEC::AddLog(CEC_LOG_DEBUG, "device %s (%x) status changed to present after command %s", GetLogicalAddressName(), (uint8_t)GetLogicalAddress(), ToString(command.opcode));
 106       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 107     }
 108   }
 109
 110   MarkReady();
 111   return bHandled;
 112 }
 113
 114 bool CCECBusDevice::PowerOn(void)
 115 {
 116   bool bReturn(false);
 117   GetVendorId(); // ensure that we got the vendor id, because the implementations vary per vendor
 118
 119   MarkBusy();
 120   CLibCEC::AddLog(CEC_LOG_NOTICE, "<< powering on '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 121   if (m_handler->PowerOn(GetMyLogicalAddress(), m_iLogicalAddress))
 122   {
 123     SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 124     bReturn = true;
 125   }
 126
 127   MarkReady();
 128   return bReturn;
 129 }
 130
 131 bool CCECBusDevice::Standby(void)
 132 {
 133   CLibCEC::AddLog(CEC_LOG_DEBUG, "<< putting '%s' (%X) in standby mode", GetLogicalAddressName(), m_iLogicalAddress);
 134   MarkBusy();
 135   bool bReturn = m_handler->TransmitStandby(GetMyLogicalAddress(), m_iLogicalAddress);
 136   MarkReady();
 137   return bReturn;
 138 }
 139
 140 /** @name Getters */
 141 //@{
 142 cec_version CCECBusDevice::GetCecVersion(bool bUpdate /* = false */)
 143 {
 144         bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 145   bool bRequestUpdate(false);
 146   {
 147     CLockObject lock(m_mutex);
 148     bRequestUpdate = bIsPresent &&
 149                         (bUpdate || m_cecVersion == CEC_VERSION_UNKNOWN);
 150   }
 151
 152   if (bRequestUpdate)
 153     RequestCecVersion();
 154
 155   CLockObject lock(m_mutex);
 156   return m_cecVersion;
 157 }
 158
 159 bool CCECBusDevice::RequestCecVersion(void)
 160 {
 161   bool bReturn(false);
 162
 163   if (!MyLogicalAddressContains(m_iLogicalAddress))
 164   {
 165     MarkBusy();
 166     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting CEC version of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 167
 168     bReturn = m_handler->TransmitRequestCecVersion(GetMyLogicalAddress(), m_iLogicalAddress);
 169     MarkReady();
 170   }
 171   return bReturn;
 172 }
 173
 174 const char* CCECBusDevice::GetLogicalAddressName(void) const
 175 {
 176   return ToString(m_iLogicalAddress);
 177 }
 178
 179 cec_menu_language &CCECBusDevice::GetMenuLanguage(bool bUpdate /* = false */)
 180 {
 181         bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 182   bool bRequestUpdate(false);
 183   {
 184     CLockObject lock(m_mutex);
 185     bRequestUpdate = (bIsPresent &&
 186         (bUpdate || !strcmp(m_menuLanguage.language, "???")));
 187   }
 188
 189   if (bRequestUpdate)
 190     RequestMenuLanguage();
 191
 192   CLockObject lock(m_mutex);
 193   return m_menuLanguage;
 194 }
 195
 196 bool CCECBusDevice::RequestMenuLanguage(void)
 197 {
 198   bool bReturn(false);
 199
 200   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 201       !IsUnsupportedFeature(CEC_OPCODE_GET_MENU_LANGUAGE))
 202   {
 203     MarkBusy();
 204     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting menu language of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 205     bReturn = m_handler->TransmitRequestMenuLanguage(GetMyLogicalAddress(), m_iLogicalAddress);
 206     MarkReady();
 207   }
 208   return bReturn;
 209 }
 210
 211 cec_menu_state CCECBusDevice::GetMenuState(void)
 212 {
 213   CLockObject lock(m_mutex);
 214   return m_menuState;
 215 }
 216
 217 cec_logical_address CCECBusDevice::GetMyLogicalAddress(void) const
 218 {
 219   return m_processor->GetLogicalAddress();
 220 }
 221
 222 uint16_t CCECBusDevice::GetMyPhysicalAddress(void) const
 223 {
 224   return m_processor->GetPhysicalAddress();
 225 }
 226
 227 CStdString CCECBusDevice::GetOSDName(bool bUpdate /* = false */)
 228 {
 229         bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 230   bool bRequestUpdate(false);
 231   {
 232     CLockObject lock(m_mutex);
 233     bRequestUpdate = bIsPresent &&
 234         (bUpdate || m_strDeviceName.Equals(ToString(m_iLogicalAddress))) &&
 235         m_type != CEC_DEVICE_TYPE_TV;
 236   }
 237
 238   if (bRequestUpdate)
 239     RequestOSDName();
 240
 241   CLockObject lock(m_mutex);
 242   return m_strDeviceName;
 243 }
 244
 245 bool CCECBusDevice::RequestOSDName(void)
 246 {
 247   bool bReturn(false);
 248
 249   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 250       !IsUnsupportedFeature(CEC_OPCODE_GIVE_OSD_NAME))
 251   {
 252     MarkBusy();
 253     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting OSD name of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 254     bReturn = m_handler->TransmitRequestOSDName(GetMyLogicalAddress(), m_iLogicalAddress);
 255     MarkReady();
 256   }
 257   return bReturn;
 258 }
 259
 260 uint16_t CCECBusDevice::GetPhysicalAddress(bool bUpdate /* = false */)
 261 {
 262         bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 263   bool bRequestUpdate(false);
 264   {
 265     CLockObject lock(m_mutex);
 266     bRequestUpdate = bIsPresent &&
 267       (m_iPhysicalAddress == 0xFFFF || bUpdate);
 268   }
 269
 270   if (bRequestUpdate && !RequestPhysicalAddress())
 271     CLibCEC::AddLog(CEC_LOG_ERROR, "failed to request the physical address");
 272
 273   CLockObject lock(m_mutex);
 274   return m_iPhysicalAddress;
 275 }
 276
 277 bool CCECBusDevice::RequestPhysicalAddress(void)
 278 {
 279   bool bReturn(false);
 280
 281   if (!MyLogicalAddressContains(m_iLogicalAddress))
 282   {
 283     MarkBusy();
 284     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting physical address of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 285     bReturn = m_handler->TransmitRequestPhysicalAddress(GetMyLogicalAddress(), m_iLogicalAddress);
 286     MarkReady();
 287   }
 288   return bReturn;
 289 }
 290
 291 cec_power_status CCECBusDevice::GetPowerStatus(bool bUpdate /* = false */)
 292 {
 293         bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 294   bool bRequestUpdate(false);
 295   {
 296     CLockObject lock(m_mutex);
 297     bRequestUpdate = (bIsPresent &&
 298         (bUpdate || m_powerStatus == CEC_POWER_STATUS_UNKNOWN ||
 299             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON ||
 300             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY ||
 301             GetTimeMs() - m_iLastPowerStateUpdate >= CEC_POWER_STATE_REFRESH_TIME));
 302   }
 303
 304   if (bRequestUpdate)
 305     RequestPowerStatus();
 306
 307   CLockObject lock(m_mutex);
 308   return m_powerStatus;
 309 }
 310
 311 bool CCECBusDevice::RequestPowerStatus(void)
 312 {
 313   bool bReturn(false);
 314
 315   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 316       !IsUnsupportedFeature(CEC_OPCODE_GIVE_DEVICE_POWER_STATUS))
 317   {
 318     MarkBusy();
 319     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting power status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 320     bReturn = m_handler->TransmitRequestPowerStatus(GetMyLogicalAddress(), m_iLogicalAddress);
 321     MarkReady();
 322   }
 323   return bReturn;
 324 }
 325
 326 cec_vendor_id CCECBusDevice::GetVendorId(bool bUpdate /* = false */)
 327 {
 328         bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 329   bool bRequestUpdate(false);
 330   {
 331     CLockObject lock(m_mutex);
 332     bRequestUpdate = (bIsPresent &&
 333         (bUpdate || m_vendor == CEC_VENDOR_UNKNOWN));
 334   }
 335
 336   if (bRequestUpdate)
 337     RequestVendorId();
 338
 339   CLockObject lock(m_mutex);
 340   return m_vendor;
 341 }
 342
 343 bool CCECBusDevice::RequestVendorId(void)
 344 {
 345   bool bReturn(false);
 346
 347   if (!MyLogicalAddressContains(m_iLogicalAddress))
 348   {
 349     MarkBusy();
 350     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting vendor ID of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 351     bReturn = m_handler->TransmitRequestVendorId(GetMyLogicalAddress(), m_iLogicalAddress);
 352     MarkReady();
 353
 354     ReplaceHandler(true);
 355   }
 356   return bReturn;
 357 }
 358
 359 const char *CCECBusDevice::GetVendorName(bool bUpdate /* = false */)
 360 {
 361   return ToString(GetVendorId(bUpdate));
 362 }
 363
 364 bool CCECBusDevice::MyLogicalAddressContains(cec_logical_address address) const
 365 {
 366   return m_processor->HasLogicalAddress(address);
 367 }
 368
 369 bool CCECBusDevice::NeedsPoll(void)
 370 {
 371   bool bSendPoll(false);
 372   switch (m_iLogicalAddress)
 373   {
 374   case CECDEVICE_PLAYBACKDEVICE3:
 375     {
 376       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_PLAYBACKDEVICE2]->GetStatus();
 377       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 378     }
 379     break;
 380   case CECDEVICE_PLAYBACKDEVICE2:
 381     {
 382       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_PLAYBACKDEVICE1]->GetStatus();
 383       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 384     }
 385     break;
 386   case CECDEVICE_RECORDINGDEVICE3:
 387     {
 388       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_RECORDINGDEVICE2]->GetStatus();
 389       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 390     }
 391     break;
 392   case CECDEVICE_RECORDINGDEVICE2:
 393     {
 394       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_RECORDINGDEVICE1]->GetStatus();
 395       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 396     }
 397     break;
 398   case CECDEVICE_TUNER4:
 399     {
 400       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER3]->GetStatus();
 401       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 402     }
 403     break;
 404   case CECDEVICE_TUNER3:
 405     {
 406       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER2]->GetStatus();
 407       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 408     }
 409     break;
 410   case CECDEVICE_TUNER2:
 411     {
 412       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER1]->GetStatus();
 413       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 414     }
 415     break;
 416   case CECDEVICE_AUDIOSYSTEM:
 417   case CECDEVICE_PLAYBACKDEVICE1:
 418   case CECDEVICE_RECORDINGDEVICE1:
 419   case CECDEVICE_TUNER1:
 420   case CECDEVICE_TV:
 421     bSendPoll = true;
 422     break;
 423   default:
 424     break;
 425   }
 426
 427   return bSendPoll;
 428 }
 429
 430 cec_bus_device_status CCECBusDevice::GetStatus(bool bForcePoll /* = false */)
 431 {
 432   CLockObject lock(m_mutex);
 433   if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC &&
 434       (m_deviceStatus == CEC_DEVICE_STATUS_UNKNOWN || bForcePoll))
 435   {
 436     lock.Unlock();
 437     bool bPollAcked(false);
 438     if (bForcePoll || NeedsPoll())
 439       bPollAcked = m_processor->PollDevice(m_iLogicalAddress);
 440
 441     lock.Lock();
 442     m_deviceStatus = bPollAcked ? CEC_DEVICE_STATUS_PRESENT : CEC_DEVICE_STATUS_NOT_PRESENT;
 443   }
 444
 445   return m_deviceStatus;
 446 }
 447
 448 //@}
 449
 450 /** @name Setters */
 451 //@{
 452 void CCECBusDevice::SetCecVersion(const cec_version newVersion)
 453 {
 454   m_cecVersion = newVersion;
 455   CLibCEC::AddLog(CEC_LOG_DEBUG, "%s (%X): CEC version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(newVersion));
 456 }
 457
 458 void CCECBusDevice::SetMenuLanguage(const cec_menu_language &language)
 459 {
 460   CLockObject lock(m_mutex);
 461   if (language.device == m_iLogicalAddress)
 462   {
 463     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): menu language set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, language.language);
 464     m_menuLanguage = language;
 465   }
 466 }
 467
 468 void CCECBusDevice::SetOSDName(CStdString strName)
 469 {
 470   CLockObject lock(m_mutex);
 471   if (m_strDeviceName != strName)
 472   {
 473     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): osd name set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, strName.c_str());
 474     m_strDeviceName = strName;
 475   }
 476 }
 477
 478 void CCECBusDevice::SetMenuState(const cec_menu_state state)
 479 {
 480   CLockObject lock(m_mutex);
 481   if (m_menuState != state)
 482   {
 483     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): menu state set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_menuState));
 484     m_menuState = state;
 485   }
 486 }
 487
 488 void CCECBusDevice::SetInactiveSource(void)
 489 {
 490   {
 491     CLockObject lock(m_mutex);
 492     m_bActiveSource = false;
 493   }
 494
 495   if (MyLogicalAddressContains(m_iLogicalAddress))
 496     SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 497 }
 498
 499 void CCECBusDevice::SetActiveSource(void)
 500 {
 501   CLockObject lock(m_mutex);
 502   if (!m_bActiveSource)
 503     CLibCEC::AddLog(CEC_LOG_DEBUG, "making %s (%x) the active source", GetLogicalAddressName(), m_iLogicalAddress);
 504
 505   for (int iPtr = 0; iPtr < 16; iPtr++)
 506     if (iPtr != m_iLogicalAddress)
 507       m_processor->m_busDevices[iPtr]->SetInactiveSource();
 508
 509   m_bActiveSource = true;
 510   SetPowerStatus(CEC_POWER_STATUS_ON);
 511 }
 512
 513 bool CCECBusDevice::TryLogicalAddress(void)
 514 {
 515   CLibCEC::AddLog(CEC_LOG_DEBUG, "trying logical address '%s'", GetLogicalAddressName());
 516
 517   m_processor->SetAckMask(0);
 518   if (!TransmitPoll(m_iLogicalAddress))
 519   {
 520     CLibCEC::AddLog(CEC_LOG_NOTICE, "using logical address '%s'", GetLogicalAddressName());
 521     SetDeviceStatus(CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 522
 523     return true;
 524   }
 525
 526   CLibCEC::AddLog(CEC_LOG_DEBUG, "logical address '%s' already taken", GetLogicalAddressName());
 527   SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
 528   return false;
 529 }
 530
 531 void CCECBusDevice::SetDeviceStatus(const cec_bus_device_status newStatus)
 532 {
 533   CLockObject lock(m_mutex);
 534   switch (newStatus)
 535   {
 536   case CEC_DEVICE_STATUS_UNKNOWN:
 537     if (m_deviceStatus != newStatus)
 538       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'unknown'", ToString(m_iLogicalAddress));
 539     m_iStreamPath      = 0;
 540     m_powerStatus      = CEC_POWER_STATUS_UNKNOWN;
 541     m_vendor           = CEC_VENDOR_UNKNOWN;
 542     m_menuState        = CEC_MENU_STATE_ACTIVATED;
 543     m_bActiveSource    = false;
 544     m_iLastActive      = 0;
 545     m_cecVersion       = CEC_VERSION_UNKNOWN;
 546     m_deviceStatus     = newStatus;
 547     break;
 548   case CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC:
 549     if (m_deviceStatus != newStatus)
 550       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'handled by libCEC'", ToString(m_iLogicalAddress));
 551     m_iStreamPath      = 0;
 552     m_powerStatus      = CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON;
 553     m_vendor           = CEC_VENDOR_UNKNOWN;
 554     m_menuState        = CEC_MENU_STATE_ACTIVATED;
 555     m_bActiveSource    = false;
 556     m_iLastActive      = 0;
 557     m_cecVersion       = CEC_VERSION_1_3A;
 558     m_deviceStatus     = newStatus;
 559     break;
 560   case CEC_DEVICE_STATUS_PRESENT:
 561     if (m_deviceStatus != newStatus)
 562       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'present'", ToString(m_iLogicalAddress));
 563     m_deviceStatus = newStatus;
 564     break;
 565   case CEC_DEVICE_STATUS_NOT_PRESENT:
 566     if (m_deviceStatus != newStatus)
 567       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'not present'", ToString(m_iLogicalAddress));
 568     m_deviceStatus = newStatus;
 569     break;
 570   }
 571 }
 572
 573 void CCECBusDevice::SetPhysicalAddress(uint16_t iNewAddress)
 574 {
 575   CLockObject lock(m_mutex);
 576   if (iNewAddress > 0 && m_iPhysicalAddress != iNewAddress)
 577   {
 578     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): physical address changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress, iNewAddress);
 579     m_iPhysicalAddress = iNewAddress;
 580   }
 581 }
 582
 583 void CCECBusDevice::SetStreamPath(uint16_t iNewAddress, uint16_t iOldAddress /* = 0 */)
 584 {
 585   CLockObject lock(m_mutex);
 586   if (iNewAddress > 0)
 587   {
 588     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): stream path changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, iOldAddress == 0 ? m_iStreamPath : iOldAddress, iNewAddress);
 589     m_iStreamPath = iNewAddress;
 590
 591     if (iNewAddress > 0)
 592     {
 593       lock.Unlock();
 594       SetPowerStatus(CEC_POWER_STATUS_ON);
 595     }
 596   }
 597 }
 598
 599 void CCECBusDevice::SetPowerStatus(const cec_power_status powerStatus)
 600 {
 601   CLockObject lock(m_mutex);
 602   if (m_powerStatus != powerStatus)
 603   {
 604     m_iLastPowerStateUpdate = GetTimeMs();
 605     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): power status changed from '%s' to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_powerStatus), ToString(powerStatus));
 606     m_powerStatus = powerStatus;
 607   }
 608 }
 609
 610 void CCECBusDevice::MarkBusy(void)
 611 {
 612   CLockObject handlerLock(m_handlerMutex);
 613   ++m_iHandlerUseCount;
 614 }
 615
 616 void CCECBusDevice::MarkReady(void)
 617 {
 618   CLockObject handlerLock(m_handlerMutex);
 619   if (m_iHandlerUseCount > 0)
 620     --m_iHandlerUseCount;
 621 }
 622
 623 bool CCECBusDevice::ReplaceHandler(bool bActivateSource /* = true */)
 624 {
 625   bool bInitHandler(false);
 626   {
 627     CTryLockObject lock(m_mutex);
 628     if (!lock.IsLocked())
 629       return false;
 630
 631     CLockObject handlerLock(m_handlerMutex);
 632     if (m_iHandlerUseCount > 0)
 633       return false;
 634
 635     MarkBusy();
 636
 637     if (m_vendor != m_handler->GetVendorId())
 638     {
 639       if (CCECCommandHandler::HasSpecificHandler(m_vendor))
 640       {
 641         CLibCEC::AddLog(CEC_LOG_DEBUG, "replacing the command handler for device '%s' (%x)", GetLogicalAddressName(), GetLogicalAddress());
 642         delete m_handler;
 643
 644         switch (m_vendor)
 645         {
 646         case CEC_VENDOR_SAMSUNG:
 647           m_handler = new CANCommandHandler(this);
 648           break;
 649         case CEC_VENDOR_LG:
 650           m_handler = new CSLCommandHandler(this);
 651           break;
 652         case CEC_VENDOR_PANASONIC:
 653           m_handler = new CVLCommandHandler(this);
 654           break;
 655         default:
 656           m_handler = new CCECCommandHandler(this);
 657           break;
 658         }
 659
 660         m_handler->SetVendorId(m_vendor);
 661         bInitHandler = true;
 662       }
 663     }
 664   }
 665
 666   if (bInitHandler)
 667   {
 668     m_handler->InitHandler();
 669
 670     if (bActivateSource && m_processor->GetLogicalAddresses().IsSet(m_iLogicalAddress) && m_processor->IsInitialised() && IsActiveSource())
 671       m_handler->ActivateSource();
 672   }
 673
 674   MarkReady();
 675
 676   return true;
 677 }
 678
 679 bool CCECBusDevice::SetVendorId(uint64_t iVendorId)
 680 {
 681   bool bVendorChanged(false);
 682
 683   {
 684     CLockObject lock(m_mutex);
 685     bVendorChanged = (m_vendor != (cec_vendor_id)iVendorId);
 686     m_vendor = (cec_vendor_id)iVendorId;
 687   }
 688
 689   CLibCEC::AddLog(CEC_LOG_DEBUG, "%s (%X): vendor = %s (%06x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_vendor), m_vendor);
 690
 691   return bVendorChanged;
 692 }
 693 //@}
 694
 695 /** @name Transmit methods */
 696 //@{
 697 bool CCECBusDevice::TransmitActiveSource(void)
 698 {
 699   bool bSendActiveSource(false);
 700
 701   {
 702     CLockObject lock(m_mutex);
 703     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 704       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 705     else if (m_bActiveSource)
 706     {
 707       CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): active source (%4x)", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 708       bSendActiveSource = true;
 709     }
 710     else
 711       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not the active source", GetLogicalAddressName(), m_iLogicalAddress);
 712   }
 713
 714   if (bSendActiveSource)
 715   {
 716     MarkBusy();
 717     m_handler->TransmitActiveSource(m_iLogicalAddress, m_iPhysicalAddress);
 718     MarkReady();
 719     return true;
 720   }
 721
 722   return false;
 723 }
 724
 725 bool CCECBusDevice::TransmitCECVersion(cec_logical_address dest)
 726 {
 727   cec_version version;
 728   {
 729     CLockObject lock(m_mutex);
 730     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): cec version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_cecVersion));
 731     version = m_cecVersion;
 732   }
 733
 734   MarkBusy();
 735   bool bReturn = m_handler->TransmitCECVersion(m_iLogicalAddress, dest, version);
 736   MarkReady();
 737   return bReturn;
 738 }
 739
 740 bool CCECBusDevice::TransmitImageViewOn(void)
 741 {
 742   {
 743     CLockObject lock(m_mutex);
 744     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 745     {
 746       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 747       return false;
 748     }
 749   }
 750
 751   MarkBusy();
 752   m_handler->TransmitImageViewOn(m_iLogicalAddress, CECDEVICE_TV);
 753   MarkReady();
 754   return true;
 755 }
 756
 757 bool CCECBusDevice::TransmitInactiveSource(void)
 758 {
 759   uint16_t iPhysicalAddress;
 760   {
 761     CLockObject lock(m_mutex);
 762     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 763     iPhysicalAddress = m_iPhysicalAddress;
 764   }
 765
 766   MarkBusy();
 767   bool bReturn = m_handler->TransmitInactiveSource(m_iLogicalAddress, iPhysicalAddress);
 768   MarkReady();
 769   return bReturn;
 770 }
 771
 772 bool CCECBusDevice::TransmitMenuState(cec_logical_address dest)
 773 {
 774   cec_menu_state menuState;
 775   {
 776     CLockObject lock(m_mutex);
 777     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): menu state '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_menuState));
 778     menuState = m_menuState;
 779   }
 780
 781   MarkBusy();
 782   bool bReturn = m_handler->TransmitMenuState(m_iLogicalAddress, dest, menuState);
 783   MarkReady();
 784   return bReturn;
 785 }
 786
 787 bool CCECBusDevice::TransmitOSDName(cec_logical_address dest)
 788 {
 789   CStdString strDeviceName;
 790   {
 791     CLockObject lock(m_mutex);
 792     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): OSD name '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, m_strDeviceName.c_str());
 793     strDeviceName = m_strDeviceName;
 794   }
 795
 796   MarkBusy();
 797   bool bReturn = m_handler->TransmitOSDName(m_iLogicalAddress, dest, strDeviceName);
 798   MarkReady();
 799   return bReturn;
 800 }
 801
 802 bool CCECBusDevice::TransmitOSDString(cec_logical_address dest, cec_display_control duration, const char *strMessage)
 803 {
 804   bool bReturn(false);
 805   if (!IsUnsupportedFeature(CEC_OPCODE_SET_OSD_STRING))
 806   {
 807     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): display OSD message '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, strMessage);
 808     MarkBusy();
 809     bReturn = m_handler->TransmitOSDString(m_iLogicalAddress, dest, duration, strMessage);
 810     MarkReady();
 811   }
 812   return bReturn;
 813 }
 814
 815 bool CCECBusDevice::TransmitPhysicalAddress(void)
 816 {
 817   uint16_t iPhysicalAddress;
 818   cec_device_type type;
 819   {
 820     CLockObject lock(m_mutex);
 821     if (m_iPhysicalAddress == 0xffff)
 822       return false;
 823
 824     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): physical adddress %4x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 825     iPhysicalAddress = m_iPhysicalAddress;
 826     type = m_type;
 827   }
 828
 829   MarkBusy();
 830   bool bReturn = m_handler->TransmitPhysicalAddress(m_iLogicalAddress, iPhysicalAddress, type);
 831   MarkReady();
 832   return bReturn;
 833 }
 834
 835 bool CCECBusDevice::TransmitPoll(cec_logical_address dest)
 836 {
 837   bool bReturn(false);
 838   if (dest == CECDEVICE_UNKNOWN)
 839     dest = m_iLogicalAddress;
 840
 841   CCECBusDevice *destDevice = m_processor->m_busDevices[dest];
 842   if (destDevice->m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 843     return bReturn;
 844
 845   MarkBusy();
 846   CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): POLL", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 847   bReturn = m_handler->TransmitPoll(m_iLogicalAddress, dest);
 848   CLibCEC::AddLog(CEC_LOG_DEBUG, bReturn ? ">> POLL sent" : ">> POLL not sent");
 849
 850   CLockObject lock(m_mutex);
 851   if (bReturn)
 852   {
 853     m_iLastActive = GetTimeMs();
 854     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 855   }
 856   else
 857     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_NOT_PRESENT;
 858
 859   MarkReady();
 860   return bReturn;
 861 }
 862
 863 bool CCECBusDevice::TransmitPowerState(cec_logical_address dest)
 864 {
 865   cec_power_status state;
 866   {
 867     CLockObject lock(m_mutex);
 868     if (!IsActiveSource())
 869       SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 870
 871     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_powerStatus));
 872     state = m_powerStatus;
 873   }
 874
 875   MarkBusy();
 876   bool bReturn = m_handler->TransmitPowerState(m_iLogicalAddress, dest, state);
 877   MarkReady();
 878   return bReturn;
 879 }
 880
 881 bool CCECBusDevice::TransmitVendorID(cec_logical_address dest, bool bSendAbort /* = true */)
 882 {
 883   bool bReturn(false);
 884   uint64_t iVendorId;
 885   {
 886     CLockObject lock(m_mutex);
 887     iVendorId = (uint64_t)m_vendor;
 888   }
 889
 890   MarkBusy();
 891   if (iVendorId == CEC_VENDOR_UNKNOWN)
 892   {
 893     if (bSendAbort)
 894     {
 895       CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): vendor id feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 896       m_processor->TransmitAbort(dest, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 897       bReturn = true;
 898     }
 899   }
 900   else
 901   {
 902     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): vendor id %s (%x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString((cec_vendor_id)iVendorId), iVendorId);
 903     bReturn = m_handler->TransmitVendorID(m_iLogicalAddress, iVendorId);
 904   }
 905   MarkReady();
 906   return bReturn;
 907 }
 908
 909 bool CCECBusDevice::TransmitKeypress(cec_user_control_code key, bool bWait /* = true */)
 910 {
 911   MarkBusy();
 912   bool bReturn = m_handler->TransmitKeypress(m_processor->GetLogicalAddress(), m_iLogicalAddress, key, bWait);
 913   MarkReady();
 914   return bReturn;
 915 }
 916
 917 bool CCECBusDevice::TransmitKeyRelease(bool bWait /* = true */)
 918 {
 919   MarkBusy();
 920   bool bReturn = m_handler->TransmitKeyRelease(m_processor->GetLogicalAddress(), m_iLogicalAddress, bWait);
 921   MarkReady();
 922   return bReturn;
 923 }
 924
 925 bool CCECBusDevice::IsUnsupportedFeature(cec_opcode opcode) const
 926 {
 927   return m_unsupportedFeatures.find(opcode) != m_unsupportedFeatures.end();
 928 }
 929
 930 void CCECBusDevice::SetUnsupportedFeature(cec_opcode opcode)
 931 {
 932   m_unsupportedFeatures.insert(opcode);
 933 }
 934
 935 bool CCECBusDevice::ActivateSource(void)
 936 {
 937   MarkBusy();
 938   bool bReturn = m_handler->ActivateSource();
 939   MarkReady();
 940   return bReturn;
 941 }
 942
 943 void CCECBusDevice::HandlePoll(cec_logical_address iDestination)
 944 {
 945   CLibCEC::AddLog(CEC_LOG_DEBUG, "<< POLL: %s (%x) -> %s (%x)", ToString(m_iLogicalAddress), m_iLogicalAddress, ToString(iDestination), iDestination);
 946   m_bAwaitingReceiveFailed = true;
 947 }
 948
 949 bool CCECBusDevice::HandleReceiveFailed(void)
 950 {
 951   bool bReturn = m_bAwaitingReceiveFailed;
 952   m_bAwaitingReceiveFailed = false;
 953   return bReturn;
 954 }
 955
 956 //@}