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   cec_power_status currentStatus = GetPowerStatus(false);
 121   if (currentStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON &&
 122     currentStatus != CEC_POWER_STATUS_ON)
 123   {
 124     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< powering on '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 125     if (m_handler->PowerOn(GetMyLogicalAddress(), m_iLogicalAddress))
 126     {
 127       SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 128       bReturn = true;
 129     }
 130   }
 131   else
 132   {
 133     CLibCEC::AddLog(CEC_LOG_NOTICE, "'%s' (%X) is already '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(currentStatus));
 134   }
 135
 136   MarkReady();
 137   return bReturn;
 138 }
 139
 140 bool CCECBusDevice::Standby(void)
 141 {
 142   CLibCEC::AddLog(CEC_LOG_DEBUG, "<< putting '%s' (%X) in standby mode", GetLogicalAddressName(), m_iLogicalAddress);
 143   MarkBusy();
 144   bool bReturn = m_handler->TransmitStandby(GetMyLogicalAddress(), m_iLogicalAddress);
 145   MarkReady();
 146   return bReturn;
 147 }
 148
 149 /** @name Getters */
 150 //@{
 151 cec_version CCECBusDevice::GetCecVersion(bool bUpdate /* = false */)
 152 {
 153   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 154   bool bRequestUpdate(false);
 155   {
 156     CLockObject lock(m_mutex);
 157     bRequestUpdate = bIsPresent &&
 158         (bUpdate || m_cecVersion == CEC_VERSION_UNKNOWN);
 159   }
 160
 161   if (bRequestUpdate)
 162     RequestCecVersion();
 163
 164   CLockObject lock(m_mutex);
 165   return m_cecVersion;
 166 }
 167
 168 bool CCECBusDevice::RequestCecVersion(void)
 169 {
 170   bool bReturn(false);
 171
 172   if (!MyLogicalAddressContains(m_iLogicalAddress))
 173   {
 174     MarkBusy();
 175     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting CEC version of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 176
 177     bReturn = m_handler->TransmitRequestCecVersion(GetMyLogicalAddress(), m_iLogicalAddress);
 178     MarkReady();
 179   }
 180   return bReturn;
 181 }
 182
 183 const char* CCECBusDevice::GetLogicalAddressName(void) const
 184 {
 185   return ToString(m_iLogicalAddress);
 186 }
 187
 188 cec_menu_language &CCECBusDevice::GetMenuLanguage(bool bUpdate /* = false */)
 189 {
 190   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 191   bool bRequestUpdate(false);
 192   {
 193     CLockObject lock(m_mutex);
 194     bRequestUpdate = (bIsPresent &&
 195         (bUpdate || !strcmp(m_menuLanguage.language, "???")));
 196   }
 197
 198   if (bRequestUpdate)
 199     RequestMenuLanguage();
 200
 201   CLockObject lock(m_mutex);
 202   return m_menuLanguage;
 203 }
 204
 205 bool CCECBusDevice::RequestMenuLanguage(void)
 206 {
 207   bool bReturn(false);
 208
 209   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 210       !IsUnsupportedFeature(CEC_OPCODE_GET_MENU_LANGUAGE))
 211   {
 212     MarkBusy();
 213     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting menu language of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 214     bReturn = m_handler->TransmitRequestMenuLanguage(GetMyLogicalAddress(), m_iLogicalAddress);
 215     MarkReady();
 216   }
 217   return bReturn;
 218 }
 219
 220 cec_menu_state CCECBusDevice::GetMenuState(void)
 221 {
 222   CLockObject lock(m_mutex);
 223   return m_menuState;
 224 }
 225
 226 cec_logical_address CCECBusDevice::GetMyLogicalAddress(void) const
 227 {
 228   return m_processor->GetLogicalAddress();
 229 }
 230
 231 uint16_t CCECBusDevice::GetMyPhysicalAddress(void) const
 232 {
 233   return m_processor->GetPhysicalAddress();
 234 }
 235
 236 CStdString CCECBusDevice::GetOSDName(bool bUpdate /* = false */)
 237 {
 238   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 239   bool bRequestUpdate(false);
 240   {
 241     CLockObject lock(m_mutex);
 242     bRequestUpdate = bIsPresent &&
 243         (bUpdate || m_strDeviceName.Equals(ToString(m_iLogicalAddress))) &&
 244         m_type != CEC_DEVICE_TYPE_TV;
 245   }
 246
 247   if (bRequestUpdate)
 248     RequestOSDName();
 249
 250   CLockObject lock(m_mutex);
 251   return m_strDeviceName;
 252 }
 253
 254 bool CCECBusDevice::RequestOSDName(void)
 255 {
 256   bool bReturn(false);
 257
 258   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 259       !IsUnsupportedFeature(CEC_OPCODE_GIVE_OSD_NAME))
 260   {
 261     MarkBusy();
 262     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting OSD name of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 263     bReturn = m_handler->TransmitRequestOSDName(GetMyLogicalAddress(), m_iLogicalAddress);
 264     MarkReady();
 265   }
 266   return bReturn;
 267 }
 268
 269 uint16_t CCECBusDevice::GetPhysicalAddress(bool bUpdate /* = false */)
 270 {
 271   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 272   bool bRequestUpdate(false);
 273   {
 274     CLockObject lock(m_mutex);
 275     bRequestUpdate = bIsPresent &&
 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 bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 303   bool bRequestUpdate(false);
 304   {
 305     CLockObject lock(m_mutex);
 306     bRequestUpdate = (bIsPresent &&
 307         (bUpdate || m_powerStatus == CEC_POWER_STATUS_UNKNOWN ||
 308             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON ||
 309             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY ||
 310             GetTimeMs() - m_iLastPowerStateUpdate >= CEC_POWER_STATE_REFRESH_TIME));
 311   }
 312
 313   if (bRequestUpdate)
 314     RequestPowerStatus();
 315
 316   CLockObject lock(m_mutex);
 317   return m_powerStatus;
 318 }
 319
 320 bool CCECBusDevice::RequestPowerStatus(void)
 321 {
 322   bool bReturn(false);
 323
 324   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 325       !IsUnsupportedFeature(CEC_OPCODE_GIVE_DEVICE_POWER_STATUS))
 326   {
 327     MarkBusy();
 328     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting power status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 329     bReturn = m_handler->TransmitRequestPowerStatus(GetMyLogicalAddress(), m_iLogicalAddress);
 330     MarkReady();
 331   }
 332   return bReturn;
 333 }
 334
 335 cec_vendor_id CCECBusDevice::GetVendorId(bool bUpdate /* = false */)
 336 {
 337   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 338   bool bRequestUpdate(false);
 339   {
 340     CLockObject lock(m_mutex);
 341     bRequestUpdate = (bIsPresent &&
 342         (bUpdate || m_vendor == CEC_VENDOR_UNKNOWN));
 343   }
 344
 345   if (bRequestUpdate)
 346     RequestVendorId();
 347
 348   CLockObject lock(m_mutex);
 349   return m_vendor;
 350 }
 351
 352 bool CCECBusDevice::RequestVendorId(void)
 353 {
 354   bool bReturn(false);
 355
 356   if (!MyLogicalAddressContains(m_iLogicalAddress))
 357   {
 358     MarkBusy();
 359     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting vendor ID of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 360     bReturn = m_handler->TransmitRequestVendorId(GetMyLogicalAddress(), m_iLogicalAddress);
 361     MarkReady();
 362
 363     ReplaceHandler(true);
 364   }
 365   return bReturn;
 366 }
 367
 368 const char *CCECBusDevice::GetVendorName(bool bUpdate /* = false */)
 369 {
 370   return ToString(GetVendorId(bUpdate));
 371 }
 372
 373 bool CCECBusDevice::MyLogicalAddressContains(cec_logical_address address) const
 374 {
 375   return m_processor->HasLogicalAddress(address);
 376 }
 377
 378 bool CCECBusDevice::NeedsPoll(void)
 379 {
 380   bool bSendPoll(false);
 381   switch (m_iLogicalAddress)
 382   {
 383   case CECDEVICE_PLAYBACKDEVICE3:
 384     {
 385       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_PLAYBACKDEVICE2]->GetStatus();
 386       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 387     }
 388     break;
 389   case CECDEVICE_PLAYBACKDEVICE2:
 390     {
 391       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_PLAYBACKDEVICE1]->GetStatus();
 392       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 393     }
 394     break;
 395   case CECDEVICE_RECORDINGDEVICE3:
 396     {
 397       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_RECORDINGDEVICE2]->GetStatus();
 398       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 399     }
 400     break;
 401   case CECDEVICE_RECORDINGDEVICE2:
 402     {
 403       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_RECORDINGDEVICE1]->GetStatus();
 404       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 405     }
 406     break;
 407   case CECDEVICE_TUNER4:
 408     {
 409       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER3]->GetStatus();
 410       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 411     }
 412     break;
 413   case CECDEVICE_TUNER3:
 414     {
 415       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER2]->GetStatus();
 416       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 417     }
 418     break;
 419   case CECDEVICE_TUNER2:
 420     {
 421       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER1]->GetStatus();
 422       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 423     }
 424     break;
 425   case CECDEVICE_AUDIOSYSTEM:
 426   case CECDEVICE_PLAYBACKDEVICE1:
 427   case CECDEVICE_RECORDINGDEVICE1:
 428   case CECDEVICE_TUNER1:
 429   case CECDEVICE_TV:
 430     bSendPoll = true;
 431     break;
 432   default:
 433     break;
 434   }
 435
 436   return bSendPoll;
 437 }
 438
 439 cec_bus_device_status CCECBusDevice::GetStatus(bool bForcePoll /* = false */)
 440 {
 441   CLockObject lock(m_mutex);
 442   if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC &&
 443       (m_deviceStatus == CEC_DEVICE_STATUS_UNKNOWN || bForcePoll))
 444   {
 445     lock.Unlock();
 446     bool bPollAcked(false);
 447     if (bForcePoll || NeedsPoll())
 448       bPollAcked = m_processor->PollDevice(m_iLogicalAddress);
 449
 450     lock.Lock();
 451     m_deviceStatus = bPollAcked ? CEC_DEVICE_STATUS_PRESENT : CEC_DEVICE_STATUS_NOT_PRESENT;
 452   }
 453
 454   return m_deviceStatus;
 455 }
 456
 457 //@}
 458
 459 /** @name Setters */
 460 //@{
 461 void CCECBusDevice::SetCecVersion(const cec_version newVersion)
 462 {
 463   m_cecVersion = newVersion;
 464   CLibCEC::AddLog(CEC_LOG_DEBUG, "%s (%X): CEC version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(newVersion));
 465 }
 466
 467 void CCECBusDevice::SetMenuLanguage(const cec_menu_language &language)
 468 {
 469   CLockObject lock(m_mutex);
 470   if (language.device == m_iLogicalAddress)
 471   {
 472     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): menu language set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, language.language);
 473     m_menuLanguage = language;
 474   }
 475 }
 476
 477 void CCECBusDevice::SetOSDName(CStdString strName)
 478 {
 479   CLockObject lock(m_mutex);
 480   if (m_strDeviceName != strName)
 481   {
 482     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): osd name set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, strName.c_str());
 483     m_strDeviceName = strName;
 484   }
 485 }
 486
 487 void CCECBusDevice::SetMenuState(const cec_menu_state state)
 488 {
 489   CLockObject lock(m_mutex);
 490   if (m_menuState != state)
 491   {
 492     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): menu state set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_menuState));
 493     m_menuState = state;
 494   }
 495 }
 496
 497 void CCECBusDevice::SetInactiveSource(void)
 498 {
 499   {
 500     CLockObject lock(m_mutex);
 501     m_bActiveSource = false;
 502   }
 503
 504   if (MyLogicalAddressContains(m_iLogicalAddress))
 505     SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 506 }
 507
 508 void CCECBusDevice::SetActiveSource(void)
 509 {
 510   CLockObject lock(m_mutex);
 511   if (!m_bActiveSource)
 512     CLibCEC::AddLog(CEC_LOG_DEBUG, "making %s (%x) the active source", GetLogicalAddressName(), m_iLogicalAddress);
 513
 514   for (int iPtr = 0; iPtr < 16; iPtr++)
 515     if (iPtr != m_iLogicalAddress)
 516       m_processor->m_busDevices[iPtr]->SetInactiveSource();
 517
 518   m_bActiveSource = true;
 519   SetPowerStatus(CEC_POWER_STATUS_ON);
 520 }
 521
 522 bool CCECBusDevice::TryLogicalAddress(void)
 523 {
 524   CLibCEC::AddLog(CEC_LOG_DEBUG, "trying logical address '%s'", GetLogicalAddressName());
 525
 526   m_processor->SetAckMask(0);
 527   if (!TransmitPoll(m_iLogicalAddress))
 528   {
 529     CLibCEC::AddLog(CEC_LOG_NOTICE, "using logical address '%s'", GetLogicalAddressName());
 530     SetDeviceStatus(CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 531
 532     return true;
 533   }
 534
 535   CLibCEC::AddLog(CEC_LOG_DEBUG, "logical address '%s' already taken", GetLogicalAddressName());
 536   SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
 537   return false;
 538 }
 539
 540 void CCECBusDevice::SetDeviceStatus(const cec_bus_device_status newStatus)
 541 {
 542   CLockObject lock(m_mutex);
 543   switch (newStatus)
 544   {
 545   case CEC_DEVICE_STATUS_UNKNOWN:
 546     if (m_deviceStatus != newStatus)
 547       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'unknown'", ToString(m_iLogicalAddress));
 548     m_iStreamPath      = 0;
 549     m_powerStatus      = CEC_POWER_STATUS_UNKNOWN;
 550     m_vendor           = CEC_VENDOR_UNKNOWN;
 551     m_menuState        = CEC_MENU_STATE_ACTIVATED;
 552     m_bActiveSource    = false;
 553     m_iLastActive      = 0;
 554     m_cecVersion       = CEC_VERSION_UNKNOWN;
 555     m_deviceStatus     = newStatus;
 556     break;
 557   case CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC:
 558     if (m_deviceStatus != newStatus)
 559       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'handled by libCEC'", ToString(m_iLogicalAddress));
 560     m_iStreamPath      = 0;
 561     m_powerStatus      = CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON;
 562     m_vendor           = CEC_VENDOR_UNKNOWN;
 563     m_menuState        = CEC_MENU_STATE_ACTIVATED;
 564     m_bActiveSource    = false;
 565     m_iLastActive      = 0;
 566     m_cecVersion       = CEC_VERSION_1_3A;
 567     m_deviceStatus     = newStatus;
 568     break;
 569   case CEC_DEVICE_STATUS_PRESENT:
 570     if (m_deviceStatus != newStatus)
 571       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'present'", ToString(m_iLogicalAddress));
 572     m_deviceStatus = newStatus;
 573     break;
 574   case CEC_DEVICE_STATUS_NOT_PRESENT:
 575     if (m_deviceStatus != newStatus)
 576       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'not present'", ToString(m_iLogicalAddress));
 577     m_deviceStatus = newStatus;
 578     break;
 579   }
 580 }
 581
 582 void CCECBusDevice::SetPhysicalAddress(uint16_t iNewAddress)
 583 {
 584   CLockObject lock(m_mutex);
 585   if (iNewAddress > 0 && m_iPhysicalAddress != iNewAddress)
 586   {
 587     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): physical address changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress, iNewAddress);
 588     m_iPhysicalAddress = iNewAddress;
 589   }
 590 }
 591
 592 void CCECBusDevice::SetStreamPath(uint16_t iNewAddress, uint16_t iOldAddress /* = 0 */)
 593 {
 594   CLockObject lock(m_mutex);
 595   if (iNewAddress > 0)
 596   {
 597     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): stream path changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, iOldAddress == 0 ? m_iStreamPath : iOldAddress, iNewAddress);
 598     m_iStreamPath = iNewAddress;
 599
 600     if (iNewAddress > 0)
 601     {
 602       lock.Unlock();
 603       SetPowerStatus(CEC_POWER_STATUS_ON);
 604     }
 605   }
 606 }
 607
 608 void CCECBusDevice::SetPowerStatus(const cec_power_status powerStatus)
 609 {
 610   CLockObject lock(m_mutex);
 611   if (m_powerStatus != powerStatus)
 612   {
 613     m_iLastPowerStateUpdate = GetTimeMs();
 614     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): power status changed from '%s' to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_powerStatus), ToString(powerStatus));
 615     m_powerStatus = powerStatus;
 616   }
 617 }
 618
 619 void CCECBusDevice::MarkBusy(void)
 620 {
 621   CLockObject handlerLock(m_handlerMutex);
 622   ++m_iHandlerUseCount;
 623 }
 624
 625 void CCECBusDevice::MarkReady(void)
 626 {
 627   CLockObject handlerLock(m_handlerMutex);
 628   if (m_iHandlerUseCount > 0)
 629     --m_iHandlerUseCount;
 630 }
 631
 632 bool CCECBusDevice::ReplaceHandler(bool bActivateSource /* = true */)
 633 {
 634   bool bInitHandler(false);
 635   {
 636     CTryLockObject lock(m_mutex);
 637     if (!lock.IsLocked())
 638       return false;
 639
 640     CLockObject handlerLock(m_handlerMutex);
 641     if (m_iHandlerUseCount > 0)
 642       return false;
 643
 644     MarkBusy();
 645
 646     if (m_vendor != m_handler->GetVendorId())
 647     {
 648       if (CCECCommandHandler::HasSpecificHandler(m_vendor))
 649       {
 650         CLibCEC::AddLog(CEC_LOG_DEBUG, "replacing the command handler for device '%s' (%x)", GetLogicalAddressName(), GetLogicalAddress());
 651         delete m_handler;
 652
 653         switch (m_vendor)
 654         {
 655         case CEC_VENDOR_SAMSUNG:
 656           m_handler = new CANCommandHandler(this);
 657           break;
 658         case CEC_VENDOR_LG:
 659           m_handler = new CSLCommandHandler(this);
 660           break;
 661         case CEC_VENDOR_PANASONIC:
 662           m_handler = new CVLCommandHandler(this);
 663           break;
 664         default:
 665           m_handler = new CCECCommandHandler(this);
 666           break;
 667         }
 668
 669         m_handler->SetVendorId(m_vendor);
 670         bInitHandler = true;
 671       }
 672     }
 673   }
 674
 675   if (bInitHandler)
 676   {
 677     m_handler->InitHandler();
 678
 679     if (bActivateSource && m_processor->GetLogicalAddresses().IsSet(m_iLogicalAddress) && m_processor->IsInitialised() && IsActiveSource())
 680       m_handler->ActivateSource();
 681   }
 682
 683   MarkReady();
 684
 685   return true;
 686 }
 687
 688 bool CCECBusDevice::SetVendorId(uint64_t iVendorId)
 689 {
 690   bool bVendorChanged(false);
 691
 692   {
 693     CLockObject lock(m_mutex);
 694     bVendorChanged = (m_vendor != (cec_vendor_id)iVendorId);
 695     m_vendor = (cec_vendor_id)iVendorId;
 696   }
 697
 698   CLibCEC::AddLog(CEC_LOG_DEBUG, "%s (%X): vendor = %s (%06x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_vendor), m_vendor);
 699
 700   return bVendorChanged;
 701 }
 702 //@}
 703
 704 /** @name Transmit methods */
 705 //@{
 706 bool CCECBusDevice::TransmitActiveSource(void)
 707 {
 708   bool bSendActiveSource(false);
 709
 710   {
 711     CLockObject lock(m_mutex);
 712     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 713       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 714     else if (m_bActiveSource)
 715     {
 716       CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): active source (%4x)", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 717       bSendActiveSource = true;
 718     }
 719     else
 720       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not the active source", GetLogicalAddressName(), m_iLogicalAddress);
 721   }
 722
 723   if (bSendActiveSource)
 724   {
 725     MarkBusy();
 726     m_handler->TransmitActiveSource(m_iLogicalAddress, m_iPhysicalAddress);
 727     MarkReady();
 728     return true;
 729   }
 730
 731   return false;
 732 }
 733
 734 bool CCECBusDevice::TransmitCECVersion(cec_logical_address dest)
 735 {
 736   cec_version version;
 737   {
 738     CLockObject lock(m_mutex);
 739     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): cec version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_cecVersion));
 740     version = m_cecVersion;
 741   }
 742
 743   MarkBusy();
 744   bool bReturn = m_handler->TransmitCECVersion(m_iLogicalAddress, dest, version);
 745   MarkReady();
 746   return bReturn;
 747 }
 748
 749 bool CCECBusDevice::TransmitImageViewOn(void)
 750 {
 751   {
 752     CLockObject lock(m_mutex);
 753     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 754     {
 755       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 756       return false;
 757     }
 758   }
 759
 760   MarkBusy();
 761   m_handler->TransmitImageViewOn(m_iLogicalAddress, CECDEVICE_TV);
 762   MarkReady();
 763   return true;
 764 }
 765
 766 bool CCECBusDevice::TransmitInactiveSource(void)
 767 {
 768   uint16_t iPhysicalAddress;
 769   {
 770     CLockObject lock(m_mutex);
 771     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 772     iPhysicalAddress = m_iPhysicalAddress;
 773   }
 774
 775   MarkBusy();
 776   bool bReturn = m_handler->TransmitInactiveSource(m_iLogicalAddress, iPhysicalAddress);
 777   MarkReady();
 778   return bReturn;
 779 }
 780
 781 bool CCECBusDevice::TransmitMenuState(cec_logical_address dest)
 782 {
 783   cec_menu_state menuState;
 784   {
 785     CLockObject lock(m_mutex);
 786     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): menu state '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_menuState));
 787     menuState = m_menuState;
 788   }
 789
 790   MarkBusy();
 791   bool bReturn = m_handler->TransmitMenuState(m_iLogicalAddress, dest, menuState);
 792   MarkReady();
 793   return bReturn;
 794 }
 795
 796 bool CCECBusDevice::TransmitOSDName(cec_logical_address dest)
 797 {
 798   CStdString strDeviceName;
 799   {
 800     CLockObject lock(m_mutex);
 801     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): OSD name '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, m_strDeviceName.c_str());
 802     strDeviceName = m_strDeviceName;
 803   }
 804
 805   MarkBusy();
 806   bool bReturn = m_handler->TransmitOSDName(m_iLogicalAddress, dest, strDeviceName);
 807   MarkReady();
 808   return bReturn;
 809 }
 810
 811 bool CCECBusDevice::TransmitOSDString(cec_logical_address dest, cec_display_control duration, const char *strMessage)
 812 {
 813   bool bReturn(false);
 814   if (!IsUnsupportedFeature(CEC_OPCODE_SET_OSD_STRING))
 815   {
 816     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): display OSD message '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, strMessage);
 817     MarkBusy();
 818     bReturn = m_handler->TransmitOSDString(m_iLogicalAddress, dest, duration, strMessage);
 819     MarkReady();
 820   }
 821   return bReturn;
 822 }
 823
 824 bool CCECBusDevice::TransmitPhysicalAddress(void)
 825 {
 826   uint16_t iPhysicalAddress;
 827   cec_device_type type;
 828   {
 829     CLockObject lock(m_mutex);
 830     if (m_iPhysicalAddress == 0xffff)
 831       return false;
 832
 833     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): physical adddress %4x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 834     iPhysicalAddress = m_iPhysicalAddress;
 835     type = m_type;
 836   }
 837
 838   MarkBusy();
 839   bool bReturn = m_handler->TransmitPhysicalAddress(m_iLogicalAddress, iPhysicalAddress, type);
 840   MarkReady();
 841   return bReturn;
 842 }
 843
 844 bool CCECBusDevice::TransmitPoll(cec_logical_address dest)
 845 {
 846   bool bReturn(false);
 847   if (dest == CECDEVICE_UNKNOWN)
 848     dest = m_iLogicalAddress;
 849
 850   CCECBusDevice *destDevice = m_processor->m_busDevices[dest];
 851   if (destDevice->m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 852     return bReturn;
 853
 854   MarkBusy();
 855   CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): POLL", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 856   bReturn = m_handler->TransmitPoll(m_iLogicalAddress, dest);
 857   CLibCEC::AddLog(CEC_LOG_DEBUG, bReturn ? ">> POLL sent" : ">> POLL not sent");
 858
 859   CLockObject lock(m_mutex);
 860   if (bReturn)
 861   {
 862     m_iLastActive = GetTimeMs();
 863     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 864   }
 865   else
 866     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_NOT_PRESENT;
 867
 868   MarkReady();
 869   return bReturn;
 870 }
 871
 872 bool CCECBusDevice::TransmitPowerState(cec_logical_address dest)
 873 {
 874   cec_power_status state;
 875   {
 876     CLockObject lock(m_mutex);
 877     if (!IsActiveSource())
 878       SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 879
 880     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_powerStatus));
 881     state = m_powerStatus;
 882   }
 883
 884   MarkBusy();
 885   bool bReturn = m_handler->TransmitPowerState(m_iLogicalAddress, dest, state);
 886   MarkReady();
 887   return bReturn;
 888 }
 889
 890 bool CCECBusDevice::TransmitVendorID(cec_logical_address dest, bool bSendAbort /* = true */)
 891 {
 892   bool bReturn(false);
 893   uint64_t iVendorId;
 894   {
 895     CLockObject lock(m_mutex);
 896     iVendorId = (uint64_t)m_vendor;
 897   }
 898
 899   MarkBusy();
 900   if (iVendorId == CEC_VENDOR_UNKNOWN)
 901   {
 902     if (bSendAbort)
 903     {
 904       CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): vendor id feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 905       m_processor->TransmitAbort(dest, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 906       bReturn = true;
 907     }
 908   }
 909   else
 910   {
 911     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);
 912     bReturn = m_handler->TransmitVendorID(m_iLogicalAddress, iVendorId);
 913   }
 914   MarkReady();
 915   return bReturn;
 916 }
 917
 918 bool CCECBusDevice::TransmitKeypress(cec_user_control_code key, bool bWait /* = true */)
 919 {
 920   MarkBusy();
 921   bool bReturn = m_handler->TransmitKeypress(m_processor->GetLogicalAddress(), m_iLogicalAddress, key, bWait);
 922   MarkReady();
 923   return bReturn;
 924 }
 925
 926 bool CCECBusDevice::TransmitKeyRelease(bool bWait /* = true */)
 927 {
 928   MarkBusy();
 929   bool bReturn = m_handler->TransmitKeyRelease(m_processor->GetLogicalAddress(), m_iLogicalAddress, bWait);
 930   MarkReady();
 931   return bReturn;
 932 }
 933
 934 bool CCECBusDevice::IsUnsupportedFeature(cec_opcode opcode) const
 935 {
 936   return m_unsupportedFeatures.find(opcode) != m_unsupportedFeatures.end();
 937 }
 938
 939 void CCECBusDevice::SetUnsupportedFeature(cec_opcode opcode)
 940 {
 941   m_unsupportedFeatures.insert(opcode);
 942 }
 943
 944 bool CCECBusDevice::ActivateSource(void)
 945 {
 946   MarkBusy();
 947   bool bReturn = m_handler->ActivateSource();
 948   MarkReady();
 949   return bReturn;
 950 }
 951
 952 void CCECBusDevice::HandlePoll(cec_logical_address iDestination)
 953 {
 954   CLibCEC::AddLog(CEC_LOG_DEBUG, "<< POLL: %s (%x) -> %s (%x)", ToString(m_iLogicalAddress), m_iLogicalAddress, ToString(iDestination), iDestination);
 955   m_bAwaitingReceiveFailed = true;
 956 }
 957
 958 bool CCECBusDevice::HandleReceiveFailed(void)
 959 {
 960   bool bReturn = m_bAwaitingReceiveFailed;
 961   m_bAwaitingReceiveFailed = false;
 962   return bReturn;
 963 }
 964
 965 //@}