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