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   m_bVendorIdRequested(false)
  65 {
  66   m_handler = new CCECCommandHandler(this);
  67
  68   for (unsigned int iPtr = 0; iPtr < 4; iPtr++)
  69     m_menuLanguage.language[iPtr] = '?';
  70   m_menuLanguage.language[3] = 0;
  71   m_menuLanguage.device = iLogicalAddress;
  72
  73   m_strDeviceName = ToString(m_iLogicalAddress);
  74 }
  75
  76 CCECBusDevice::~CCECBusDevice(void)
  77 {
  78   delete m_handler;
  79 }
  80
  81 bool CCECBusDevice::HandleCommand(const cec_command &command)
  82 {
  83   bool bHandled(false);
  84
  85   /* update "last active" */
  86   {
  87     CLockObject lock(m_mutex);
  88     m_iLastActive = GetTimeMs();
  89
  90     /* don't call GetStatus() here, just read the value with the mutex locked */
  91     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
  92       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
  93
  94     MarkBusy();
  95   }
  96
  97   /* handle the command */
  98   bHandled = m_handler->HandleCommand(command);
  99
 100   /* change status to present */
 101   if (bHandled)
 102   {
 103     CLockObject lock(m_mutex);
 104     if (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 105     {
 106       if (m_deviceStatus != CEC_DEVICE_STATUS_PRESENT)
 107         CLibCEC::AddLog(CEC_LOG_DEBUG, "device %s (%x) status changed to present after command %s", GetLogicalAddressName(), (uint8_t)GetLogicalAddress(), ToString(command.opcode));
 108       m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 109     }
 110   }
 111
 112   MarkReady();
 113   return bHandled;
 114 }
 115
 116 bool CCECBusDevice::PowerOn(void)
 117 {
 118   bool bReturn(false);
 119   GetVendorId(); // ensure that we got the vendor id, because the implementations vary per vendor
 120
 121   MarkBusy();
 122   cec_power_status currentStatus = GetPowerStatus(false);
 123   if (currentStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON &&
 124     currentStatus != CEC_POWER_STATUS_ON)
 125   {
 126     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< powering on '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 127     if (m_handler->PowerOn(GetMyLogicalAddress(), m_iLogicalAddress))
 128     {
 129       SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 130       bReturn = true;
 131     }
 132   }
 133   else
 134   {
 135     CLibCEC::AddLog(CEC_LOG_NOTICE, "'%s' (%X) is already '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(currentStatus));
 136   }
 137
 138   MarkReady();
 139   return bReturn;
 140 }
 141
 142 bool CCECBusDevice::Standby(void)
 143 {
 144   CLibCEC::AddLog(CEC_LOG_DEBUG, "<< putting '%s' (%X) in standby mode", GetLogicalAddressName(), m_iLogicalAddress);
 145   MarkBusy();
 146   bool bReturn = m_handler->TransmitStandby(GetMyLogicalAddress(), m_iLogicalAddress);
 147   MarkReady();
 148   return bReturn;
 149 }
 150
 151 /** @name Getters */
 152 //@{
 153 cec_version CCECBusDevice::GetCecVersion(bool bUpdate /* = false */)
 154 {
 155   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 156   bool bRequestUpdate(false);
 157   {
 158     CLockObject lock(m_mutex);
 159     bRequestUpdate = bIsPresent &&
 160         (bUpdate || m_cecVersion == CEC_VERSION_UNKNOWN);
 161   }
 162
 163   if (bRequestUpdate)
 164   {
 165     CheckVendorIdRequested();
 166     RequestCecVersion();
 167   }
 168
 169   CLockObject lock(m_mutex);
 170   return m_cecVersion;
 171 }
 172
 173 bool CCECBusDevice::RequestCecVersion(void)
 174 {
 175   bool bReturn(false);
 176
 177   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 178       !IsUnsupportedFeature(CEC_OPCODE_GET_CEC_VERSION))
 179   {
 180     MarkBusy();
 181     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting CEC version of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 182
 183     bReturn = m_handler->TransmitRequestCecVersion(GetMyLogicalAddress(), m_iLogicalAddress);
 184     MarkReady();
 185   }
 186   return bReturn;
 187 }
 188
 189 const char* CCECBusDevice::GetLogicalAddressName(void) const
 190 {
 191   return ToString(m_iLogicalAddress);
 192 }
 193
 194 cec_menu_language &CCECBusDevice::GetMenuLanguage(bool bUpdate /* = false */)
 195 {
 196   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 197   bool bRequestUpdate(false);
 198   {
 199     CLockObject lock(m_mutex);
 200     bRequestUpdate = (bIsPresent &&
 201         (bUpdate || !strcmp(m_menuLanguage.language, "???")));
 202   }
 203
 204   if (bRequestUpdate)
 205   {
 206     CheckVendorIdRequested();
 207     RequestMenuLanguage();
 208   }
 209
 210   CLockObject lock(m_mutex);
 211   return m_menuLanguage;
 212 }
 213
 214 bool CCECBusDevice::RequestMenuLanguage(void)
 215 {
 216   bool bReturn(false);
 217
 218   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 219       !IsUnsupportedFeature(CEC_OPCODE_GET_MENU_LANGUAGE))
 220   {
 221     MarkBusy();
 222     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting menu language of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 223     bReturn = m_handler->TransmitRequestMenuLanguage(GetMyLogicalAddress(), m_iLogicalAddress);
 224     MarkReady();
 225   }
 226   return bReturn;
 227 }
 228
 229 cec_menu_state CCECBusDevice::GetMenuState(void)
 230 {
 231   CLockObject lock(m_mutex);
 232   return m_menuState;
 233 }
 234
 235 cec_logical_address CCECBusDevice::GetMyLogicalAddress(void) const
 236 {
 237   return m_processor->GetLogicalAddress();
 238 }
 239
 240 uint16_t CCECBusDevice::GetMyPhysicalAddress(void) const
 241 {
 242   return m_processor->GetPhysicalAddress();
 243 }
 244
 245 CStdString CCECBusDevice::GetOSDName(bool bUpdate /* = false */)
 246 {
 247   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 248   bool bRequestUpdate(false);
 249   {
 250     CLockObject lock(m_mutex);
 251     bRequestUpdate = bIsPresent &&
 252         (bUpdate || m_strDeviceName.Equals(ToString(m_iLogicalAddress))) &&
 253         m_type != CEC_DEVICE_TYPE_TV;
 254   }
 255
 256   if (bRequestUpdate)
 257   {
 258     CheckVendorIdRequested();
 259     RequestOSDName();
 260   }
 261
 262   CLockObject lock(m_mutex);
 263   return m_strDeviceName;
 264 }
 265
 266 bool CCECBusDevice::RequestOSDName(void)
 267 {
 268   bool bReturn(false);
 269
 270   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 271       !IsUnsupportedFeature(CEC_OPCODE_GIVE_OSD_NAME))
 272   {
 273     MarkBusy();
 274     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting OSD name of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 275     bReturn = m_handler->TransmitRequestOSDName(GetMyLogicalAddress(), m_iLogicalAddress);
 276     MarkReady();
 277   }
 278   return bReturn;
 279 }
 280
 281 uint16_t CCECBusDevice::GetPhysicalAddress(bool bUpdate /* = false */)
 282 {
 283   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 284   bool bRequestUpdate(false);
 285   {
 286     CLockObject lock(m_mutex);
 287     bRequestUpdate = bIsPresent &&
 288       (m_iPhysicalAddress == 0xFFFF || bUpdate);
 289   }
 290
 291   if (bRequestUpdate)
 292   {
 293     CheckVendorIdRequested();
 294     if (!RequestPhysicalAddress())
 295       CLibCEC::AddLog(CEC_LOG_ERROR, "failed to request the physical address");
 296   }
 297
 298   CLockObject lock(m_mutex);
 299   return m_iPhysicalAddress;
 300 }
 301
 302 bool CCECBusDevice::RequestPhysicalAddress(void)
 303 {
 304   bool bReturn(false);
 305
 306   if (!MyLogicalAddressContains(m_iLogicalAddress))
 307   {
 308     MarkBusy();
 309     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting physical address of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 310     bReturn = m_handler->TransmitRequestPhysicalAddress(GetMyLogicalAddress(), m_iLogicalAddress);
 311     MarkReady();
 312   }
 313   return bReturn;
 314 }
 315
 316 cec_power_status CCECBusDevice::GetPowerStatus(bool bUpdate /* = false */)
 317 {
 318   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 319   bool bRequestUpdate(false);
 320   {
 321     CLockObject lock(m_mutex);
 322     bRequestUpdate = (bIsPresent &&
 323         (bUpdate || m_powerStatus == CEC_POWER_STATUS_UNKNOWN ||
 324             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON ||
 325             m_powerStatus == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY ||
 326             GetTimeMs() - m_iLastPowerStateUpdate >= CEC_POWER_STATE_REFRESH_TIME));
 327   }
 328
 329   if (bRequestUpdate)
 330   {
 331     CheckVendorIdRequested();
 332     RequestPowerStatus();
 333   }
 334
 335   CLockObject lock(m_mutex);
 336   return m_powerStatus;
 337 }
 338
 339 bool CCECBusDevice::RequestPowerStatus(void)
 340 {
 341   bool bReturn(false);
 342
 343   if (!MyLogicalAddressContains(m_iLogicalAddress) &&
 344       !IsUnsupportedFeature(CEC_OPCODE_GIVE_DEVICE_POWER_STATUS))
 345   {
 346     MarkBusy();
 347     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting power status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 348     bReturn = m_handler->TransmitRequestPowerStatus(GetMyLogicalAddress(), m_iLogicalAddress);
 349     MarkReady();
 350   }
 351   return bReturn;
 352 }
 353
 354 cec_vendor_id CCECBusDevice::GetVendorId(bool bUpdate /* = false */)
 355 {
 356   bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
 357   bool bRequestUpdate(false);
 358   {
 359     CLockObject lock(m_mutex);
 360     bRequestUpdate = (bIsPresent &&
 361         (bUpdate || m_vendor == CEC_VENDOR_UNKNOWN));
 362   }
 363
 364   if (bRequestUpdate)
 365     RequestVendorId();
 366
 367   CLockObject lock(m_mutex);
 368   return m_vendor;
 369 }
 370
 371 bool CCECBusDevice::RequestVendorId(void)
 372 {
 373   bool bReturn(false);
 374
 375   if (!MyLogicalAddressContains(m_iLogicalAddress))
 376   {
 377     MarkBusy();
 378     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< requesting vendor ID of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
 379     bReturn = m_handler->TransmitRequestVendorId(GetMyLogicalAddress(), m_iLogicalAddress);
 380     MarkReady();
 381
 382     ReplaceHandler(true);
 383   }
 384   return bReturn;
 385 }
 386
 387 const char *CCECBusDevice::GetVendorName(bool bUpdate /* = false */)
 388 {
 389   return ToString(GetVendorId(bUpdate));
 390 }
 391
 392 bool CCECBusDevice::MyLogicalAddressContains(cec_logical_address address) const
 393 {
 394   return m_processor->HasLogicalAddress(address);
 395 }
 396
 397 bool CCECBusDevice::NeedsPoll(void)
 398 {
 399   bool bSendPoll(false);
 400   switch (m_iLogicalAddress)
 401   {
 402   case CECDEVICE_PLAYBACKDEVICE3:
 403     {
 404       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_PLAYBACKDEVICE2]->GetStatus();
 405       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 406     }
 407     break;
 408   case CECDEVICE_PLAYBACKDEVICE2:
 409     {
 410       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_PLAYBACKDEVICE1]->GetStatus();
 411       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 412     }
 413     break;
 414   case CECDEVICE_RECORDINGDEVICE3:
 415     {
 416       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_RECORDINGDEVICE2]->GetStatus();
 417       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 418     }
 419     break;
 420   case CECDEVICE_RECORDINGDEVICE2:
 421     {
 422       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_RECORDINGDEVICE1]->GetStatus();
 423       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 424     }
 425     break;
 426   case CECDEVICE_TUNER4:
 427     {
 428       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER3]->GetStatus();
 429       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 430     }
 431     break;
 432   case CECDEVICE_TUNER3:
 433     {
 434       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER2]->GetStatus();
 435       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 436     }
 437     break;
 438   case CECDEVICE_TUNER2:
 439     {
 440       cec_bus_device_status status = m_processor->m_busDevices[CECDEVICE_TUNER1]->GetStatus();
 441       bSendPoll = (status == CEC_DEVICE_STATUS_PRESENT || status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 442     }
 443     break;
 444   case CECDEVICE_AUDIOSYSTEM:
 445   case CECDEVICE_PLAYBACKDEVICE1:
 446   case CECDEVICE_RECORDINGDEVICE1:
 447   case CECDEVICE_TUNER1:
 448   case CECDEVICE_TV:
 449     bSendPoll = true;
 450     break;
 451   default:
 452     break;
 453   }
 454
 455   return bSendPoll;
 456 }
 457
 458 cec_bus_device_status CCECBusDevice::GetStatus(bool bForcePoll /* = false */)
 459 {
 460   cec_bus_device_status status(CEC_DEVICE_STATUS_UNKNOWN);
 461   bool bNeedsPoll(false);
 462
 463   {
 464     CLockObject lock(m_mutex);
 465     status = m_deviceStatus;
 466     bNeedsPoll = (m_deviceStatus != CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC &&
 467         (m_deviceStatus == CEC_DEVICE_STATUS_UNKNOWN || bForcePoll));
 468   }
 469
 470   if (bNeedsPoll)
 471   {
 472     bool bPollAcked(false);
 473     if (bNeedsPoll && NeedsPoll())
 474       bPollAcked = m_processor->PollDevice(m_iLogicalAddress);
 475
 476     status = bPollAcked ? CEC_DEVICE_STATUS_PRESENT : CEC_DEVICE_STATUS_NOT_PRESENT;
 477     SetDeviceStatus(status);
 478   }
 479
 480   return status;
 481 }
 482
 483 //@}
 484
 485 /** @name Setters */
 486 //@{
 487 void CCECBusDevice::SetCecVersion(const cec_version newVersion)
 488 {
 489   m_cecVersion = newVersion;
 490   CLibCEC::AddLog(CEC_LOG_DEBUG, "%s (%X): CEC version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(newVersion));
 491 }
 492
 493 void CCECBusDevice::SetMenuLanguage(const cec_menu_language &language)
 494 {
 495   CLockObject lock(m_mutex);
 496   if (language.device == m_iLogicalAddress)
 497   {
 498     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): menu language set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, language.language);
 499     m_menuLanguage = language;
 500   }
 501 }
 502
 503 void CCECBusDevice::SetOSDName(CStdString strName)
 504 {
 505   CLockObject lock(m_mutex);
 506   if (m_strDeviceName != strName)
 507   {
 508     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): osd name set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, strName.c_str());
 509     m_strDeviceName = strName;
 510   }
 511 }
 512
 513 void CCECBusDevice::SetMenuState(const cec_menu_state state)
 514 {
 515   CLockObject lock(m_mutex);
 516   if (m_menuState != state)
 517   {
 518     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): menu state set to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_menuState));
 519     m_menuState = state;
 520   }
 521 }
 522
 523 void CCECBusDevice::SetInactiveSource(void)
 524 {
 525   {
 526     CLockObject lock(m_mutex);
 527     if (m_bActiveSource)
 528       CLibCEC::AddLog(CEC_LOG_DEBUG, "marking %s (%X) as inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 529     m_bActiveSource = false;
 530   }
 531
 532   if (MyLogicalAddressContains(m_iLogicalAddress))
 533     SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 534 }
 535
 536 void CCECBusDevice::SetActiveSource(void)
 537 {
 538   CLockObject lock(m_mutex);
 539   if (!m_bActiveSource)
 540     CLibCEC::AddLog(CEC_LOG_DEBUG, "making %s (%x) the active source", GetLogicalAddressName(), m_iLogicalAddress);
 541
 542   for (int iPtr = 0; iPtr < 16; iPtr++)
 543     if (iPtr != m_iLogicalAddress)
 544       m_processor->m_busDevices[iPtr]->SetInactiveSource();
 545
 546   m_bActiveSource = true;
 547   SetPowerStatus(CEC_POWER_STATUS_ON);
 548 }
 549
 550 bool CCECBusDevice::TryLogicalAddress(void)
 551 {
 552   CLibCEC::AddLog(CEC_LOG_DEBUG, "trying logical address '%s'", GetLogicalAddressName());
 553
 554   m_processor->SetAckMask(0);
 555   if (!TransmitPoll(m_iLogicalAddress))
 556   {
 557     CLibCEC::AddLog(CEC_LOG_NOTICE, "using logical address '%s'", GetLogicalAddressName());
 558     SetDeviceStatus(CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC);
 559
 560     return true;
 561   }
 562
 563   CLibCEC::AddLog(CEC_LOG_DEBUG, "logical address '%s' already taken", GetLogicalAddressName());
 564   SetDeviceStatus(CEC_DEVICE_STATUS_PRESENT);
 565   return false;
 566 }
 567
 568 void CCECBusDevice::SetDeviceStatus(const cec_bus_device_status newStatus)
 569 {
 570   CLockObject lock(m_mutex);
 571   switch (newStatus)
 572   {
 573   case CEC_DEVICE_STATUS_UNKNOWN:
 574     if (m_deviceStatus != newStatus)
 575       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'unknown'", ToString(m_iLogicalAddress));
 576     m_iStreamPath      = 0;
 577     m_powerStatus      = CEC_POWER_STATUS_UNKNOWN;
 578     m_vendor           = CEC_VENDOR_UNKNOWN;
 579     m_menuState        = CEC_MENU_STATE_ACTIVATED;
 580     m_bActiveSource    = false;
 581     m_iLastActive      = 0;
 582     m_cecVersion       = CEC_VERSION_UNKNOWN;
 583     m_deviceStatus     = newStatus;
 584     break;
 585   case CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC:
 586     if (m_deviceStatus != newStatus)
 587       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'handled by libCEC'", ToString(m_iLogicalAddress));
 588     m_iStreamPath      = 0;
 589     m_powerStatus      = CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON;
 590     m_vendor           = CEC_VENDOR_UNKNOWN;
 591     m_menuState        = CEC_MENU_STATE_ACTIVATED;
 592     m_bActiveSource    = false;
 593     m_iLastActive      = 0;
 594     m_cecVersion       = CEC_VERSION_1_3A;
 595     m_deviceStatus     = newStatus;
 596     break;
 597   case CEC_DEVICE_STATUS_PRESENT:
 598     if (m_deviceStatus != newStatus)
 599       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'present'", ToString(m_iLogicalAddress));
 600     m_deviceStatus = newStatus;
 601     break;
 602   case CEC_DEVICE_STATUS_NOT_PRESENT:
 603     if (m_deviceStatus != newStatus)
 604       CLibCEC::AddLog(CEC_LOG_DEBUG, "device status of %s changed into 'not present'", ToString(m_iLogicalAddress));
 605     m_deviceStatus = newStatus;
 606     break;
 607   }
 608 }
 609
 610 void CCECBusDevice::SetPhysicalAddress(uint16_t iNewAddress)
 611 {
 612   CLockObject lock(m_mutex);
 613   if (iNewAddress > 0 && m_iPhysicalAddress != iNewAddress)
 614   {
 615     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): physical address changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress, iNewAddress);
 616     m_iPhysicalAddress = iNewAddress;
 617   }
 618 }
 619
 620 void CCECBusDevice::SetStreamPath(uint16_t iNewAddress, uint16_t iOldAddress /* = 0 */)
 621 {
 622   CLockObject lock(m_mutex);
 623   if (iNewAddress > 0)
 624   {
 625     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): stream path changed from %04x to %04x", GetLogicalAddressName(), m_iLogicalAddress, iOldAddress == 0 ? m_iStreamPath : iOldAddress, iNewAddress);
 626     m_iStreamPath = iNewAddress;
 627
 628     if (iNewAddress > 0)
 629     {
 630       lock.Unlock();
 631       SetPowerStatus(CEC_POWER_STATUS_ON);
 632     }
 633   }
 634 }
 635
 636 void CCECBusDevice::SetPowerStatus(const cec_power_status powerStatus)
 637 {
 638   CLockObject lock(m_mutex);
 639   if (m_powerStatus != powerStatus)
 640   {
 641     m_iLastPowerStateUpdate = GetTimeMs();
 642     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): power status changed from '%s' to '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_powerStatus), ToString(powerStatus));
 643     m_powerStatus = powerStatus;
 644   }
 645 }
 646
 647 void CCECBusDevice::MarkBusy(void)
 648 {
 649   CLockObject handlerLock(m_handlerMutex);
 650   ++m_iHandlerUseCount;
 651 }
 652
 653 void CCECBusDevice::MarkReady(void)
 654 {
 655   CLockObject handlerLock(m_handlerMutex);
 656   if (m_iHandlerUseCount > 0)
 657     --m_iHandlerUseCount;
 658 }
 659
 660 bool CCECBusDevice::ReplaceHandler(bool bActivateSource /* = true */)
 661 {
 662   bool bInitHandler(false);
 663   {
 664     CTryLockObject lock(m_mutex);
 665     if (!lock.IsLocked())
 666       return false;
 667
 668     CLockObject handlerLock(m_handlerMutex);
 669     if (m_iHandlerUseCount > 0)
 670       return false;
 671
 672     MarkBusy();
 673
 674     if (m_vendor != m_handler->GetVendorId())
 675     {
 676       if (CCECCommandHandler::HasSpecificHandler(m_vendor))
 677       {
 678         CLibCEC::AddLog(CEC_LOG_DEBUG, "replacing the command handler for device '%s' (%x)", GetLogicalAddressName(), GetLogicalAddress());
 679         delete m_handler;
 680
 681         switch (m_vendor)
 682         {
 683         case CEC_VENDOR_SAMSUNG:
 684           m_handler = new CANCommandHandler(this);
 685           break;
 686         case CEC_VENDOR_LG:
 687           m_handler = new CSLCommandHandler(this);
 688           break;
 689         case CEC_VENDOR_PANASONIC:
 690           m_handler = new CVLCommandHandler(this);
 691           break;
 692         default:
 693           m_handler = new CCECCommandHandler(this);
 694           break;
 695         }
 696
 697         m_handler->SetVendorId(m_vendor);
 698         bInitHandler = true;
 699       }
 700     }
 701   }
 702
 703   if (bInitHandler)
 704   {
 705     m_handler->InitHandler();
 706
 707     if (bActivateSource && m_processor->GetLogicalAddresses().IsSet(m_iLogicalAddress) && m_processor->IsInitialised() && IsActiveSource())
 708       m_handler->ActivateSource();
 709   }
 710
 711   MarkReady();
 712
 713   return true;
 714 }
 715
 716 bool CCECBusDevice::SetVendorId(uint64_t iVendorId)
 717 {
 718   bool bVendorChanged(false);
 719
 720   {
 721     CLockObject lock(m_mutex);
 722     bVendorChanged = (m_vendor != (cec_vendor_id)iVendorId);
 723     m_vendor = (cec_vendor_id)iVendorId;
 724   }
 725
 726   CLibCEC::AddLog(CEC_LOG_DEBUG, "%s (%X): vendor = %s (%06x)", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_vendor), m_vendor);
 727
 728   return bVendorChanged;
 729 }
 730 //@}
 731
 732 /** @name Transmit methods */
 733 //@{
 734 bool CCECBusDevice::TransmitActiveSource(void)
 735 {
 736   bool bSendActiveSource(false);
 737
 738   {
 739     CLockObject lock(m_mutex);
 740     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 741       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 742     else if (m_bActiveSource)
 743     {
 744       CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): active source (%4x)", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 745       bSendActiveSource = true;
 746     }
 747     else
 748       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not the active source", GetLogicalAddressName(), m_iLogicalAddress);
 749   }
 750
 751   if (bSendActiveSource)
 752   {
 753     MarkBusy();
 754     m_handler->TransmitActiveSource(m_iLogicalAddress, m_iPhysicalAddress);
 755     MarkReady();
 756     return true;
 757   }
 758
 759   return false;
 760 }
 761
 762 bool CCECBusDevice::TransmitCECVersion(cec_logical_address dest)
 763 {
 764   cec_version version;
 765   {
 766     CLockObject lock(m_mutex);
 767     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): cec version %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_cecVersion));
 768     version = m_cecVersion;
 769   }
 770
 771   MarkBusy();
 772   bool bReturn = m_handler->TransmitCECVersion(m_iLogicalAddress, dest, version);
 773   MarkReady();
 774   return bReturn;
 775 }
 776
 777 bool CCECBusDevice::TransmitImageViewOn(void)
 778 {
 779   {
 780     CLockObject lock(m_mutex);
 781     if (m_powerStatus != CEC_POWER_STATUS_ON && m_powerStatus != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
 782     {
 783       CLibCEC::AddLog(CEC_LOG_DEBUG, "<< %s (%X) is not powered on", GetLogicalAddressName(), m_iLogicalAddress);
 784       return false;
 785     }
 786   }
 787
 788   MarkBusy();
 789   m_handler->TransmitImageViewOn(m_iLogicalAddress, CECDEVICE_TV);
 790   MarkReady();
 791   return true;
 792 }
 793
 794 bool CCECBusDevice::TransmitInactiveSource(void)
 795 {
 796   uint16_t iPhysicalAddress;
 797   {
 798     CLockObject lock(m_mutex);
 799     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): inactive source", GetLogicalAddressName(), m_iLogicalAddress);
 800     iPhysicalAddress = m_iPhysicalAddress;
 801   }
 802
 803   MarkBusy();
 804   bool bReturn = m_handler->TransmitInactiveSource(m_iLogicalAddress, iPhysicalAddress);
 805   MarkReady();
 806   return bReturn;
 807 }
 808
 809 bool CCECBusDevice::TransmitMenuState(cec_logical_address dest)
 810 {
 811   cec_menu_state menuState;
 812   {
 813     CLockObject lock(m_mutex);
 814     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): menu state '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_menuState));
 815     menuState = m_menuState;
 816   }
 817
 818   MarkBusy();
 819   bool bReturn = m_handler->TransmitMenuState(m_iLogicalAddress, dest, menuState);
 820   MarkReady();
 821   return bReturn;
 822 }
 823
 824 bool CCECBusDevice::TransmitOSDName(cec_logical_address dest)
 825 {
 826   CStdString strDeviceName;
 827   {
 828     CLockObject lock(m_mutex);
 829     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): OSD name '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, m_strDeviceName.c_str());
 830     strDeviceName = m_strDeviceName;
 831   }
 832
 833   MarkBusy();
 834   bool bReturn = m_handler->TransmitOSDName(m_iLogicalAddress, dest, strDeviceName);
 835   MarkReady();
 836   return bReturn;
 837 }
 838
 839 bool CCECBusDevice::TransmitOSDString(cec_logical_address dest, cec_display_control duration, const char *strMessage)
 840 {
 841   bool bReturn(false);
 842   if (!m_processor->m_busDevices[dest]->IsUnsupportedFeature(CEC_OPCODE_SET_OSD_STRING))
 843   {
 844     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): display OSD message '%s'", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, strMessage);
 845     MarkBusy();
 846     bReturn = m_handler->TransmitOSDString(m_iLogicalAddress, dest, duration, strMessage);
 847     MarkReady();
 848   }
 849   return bReturn;
 850 }
 851
 852 bool CCECBusDevice::TransmitPhysicalAddress(void)
 853 {
 854   uint16_t iPhysicalAddress;
 855   cec_device_type type;
 856   {
 857     CLockObject lock(m_mutex);
 858     if (m_iPhysicalAddress == 0xffff)
 859       return false;
 860
 861     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> broadcast (F): physical adddress %4x", GetLogicalAddressName(), m_iLogicalAddress, m_iPhysicalAddress);
 862     iPhysicalAddress = m_iPhysicalAddress;
 863     type = m_type;
 864   }
 865
 866   MarkBusy();
 867   bool bReturn = m_handler->TransmitPhysicalAddress(m_iLogicalAddress, iPhysicalAddress, type);
 868   MarkReady();
 869   return bReturn;
 870 }
 871
 872 bool CCECBusDevice::TransmitPoll(cec_logical_address dest)
 873 {
 874   bool bReturn(false);
 875   if (dest == CECDEVICE_UNKNOWN)
 876     dest = m_iLogicalAddress;
 877
 878   CCECBusDevice *destDevice = m_processor->m_busDevices[dest];
 879   if (destDevice->m_deviceStatus == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
 880     return bReturn;
 881
 882   MarkBusy();
 883   CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): POLL", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 884   bReturn = m_handler->TransmitPoll(m_iLogicalAddress, dest);
 885   CLibCEC::AddLog(CEC_LOG_DEBUG, bReturn ? ">> POLL sent" : ">> POLL not sent");
 886
 887   CLockObject lock(m_mutex);
 888   if (bReturn)
 889   {
 890     m_iLastActive = GetTimeMs();
 891     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_PRESENT;
 892   }
 893   else
 894     destDevice->m_deviceStatus = CEC_DEVICE_STATUS_NOT_PRESENT;
 895
 896   MarkReady();
 897   return bReturn;
 898 }
 899
 900 bool CCECBusDevice::TransmitPowerState(cec_logical_address dest)
 901 {
 902   cec_power_status state;
 903   {
 904     CLockObject lock(m_mutex);
 905     if (!IsActiveSource())
 906     {
 907       CLibCEC::AddLog(CEC_LOG_NOTICE, "power state requested of %s (%X), but we are not the active source. setting power state to standby", GetLogicalAddressName(), m_iLogicalAddress);
 908       SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 909     }
 910
 911     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest, ToString(m_powerStatus));
 912     state = m_powerStatus;
 913   }
 914
 915   MarkBusy();
 916   bool bReturn = m_handler->TransmitPowerState(m_iLogicalAddress, dest, state);
 917   MarkReady();
 918   return bReturn;
 919 }
 920
 921 bool CCECBusDevice::TransmitVendorID(cec_logical_address dest, bool bSendAbort /* = true */)
 922 {
 923   bool bReturn(false);
 924   uint64_t iVendorId;
 925   {
 926     CLockObject lock(m_mutex);
 927     iVendorId = (uint64_t)m_vendor;
 928   }
 929
 930   MarkBusy();
 931   if (iVendorId == CEC_VENDOR_UNKNOWN)
 932   {
 933     if (bSendAbort)
 934     {
 935       CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %s (%X) -> %s (%X): vendor id feature abort", GetLogicalAddressName(), m_iLogicalAddress, ToString(dest), dest);
 936       m_processor->TransmitAbort(dest, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 937       bReturn = true;
 938     }
 939   }
 940   else
 941   {
 942     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);
 943     bReturn = m_handler->TransmitVendorID(m_iLogicalAddress, iVendorId);
 944   }
 945   MarkReady();
 946   return bReturn;
 947 }
 948
 949 bool CCECBusDevice::TransmitKeypress(cec_user_control_code key, bool bWait /* = true */)
 950 {
 951   MarkBusy();
 952   bool bReturn = m_handler->TransmitKeypress(m_processor->GetLogicalAddress(), m_iLogicalAddress, key, bWait);
 953   MarkReady();
 954   return bReturn;
 955 }
 956
 957 bool CCECBusDevice::TransmitKeyRelease(bool bWait /* = true */)
 958 {
 959   MarkBusy();
 960   bool bReturn = m_handler->TransmitKeyRelease(m_processor->GetLogicalAddress(), m_iLogicalAddress, bWait);
 961   MarkReady();
 962   return bReturn;
 963 }
 964
 965 bool CCECBusDevice::IsUnsupportedFeature(cec_opcode opcode) const
 966 {
 967   bool bUnsupported = (m_unsupportedFeatures.find(opcode) != m_unsupportedFeatures.end());
 968   if (bUnsupported)
 969     CLibCEC::AddLog(CEC_LOG_NOTICE, "'%s' is marked as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 970   return bUnsupported;
 971 }
 972
 973 void CCECBusDevice::SetUnsupportedFeature(cec_opcode opcode)
 974 {
 975   CLibCEC::AddLog(CEC_LOG_DEBUG, "marking opcode '%s' as unsupported feature for device '%s'", ToString(opcode), GetLogicalAddressName());
 976   m_unsupportedFeatures.insert(opcode);
 977 }
 978
 979 bool CCECBusDevice::ActivateSource(void)
 980 {
 981   MarkBusy();
 982   bool bReturn = m_handler->ActivateSource();
 983   MarkReady();
 984   return bReturn;
 985 }
 986
 987 void CCECBusDevice::HandlePoll(cec_logical_address iDestination)
 988 {
 989   CLibCEC::AddLog(CEC_LOG_DEBUG, "<< POLL: %s (%x) -> %s (%x)", ToString(m_iLogicalAddress), m_iLogicalAddress, ToString(iDestination), iDestination);
 990   m_bAwaitingReceiveFailed = true;
 991 }
 992
 993 bool CCECBusDevice::HandleReceiveFailed(void)
 994 {
 995   bool bReturn = m_bAwaitingReceiveFailed;
 996   m_bAwaitingReceiveFailed = false;
 997   return bReturn;
 998 }
 999
1000 void CCECBusDevice::CheckVendorIdRequested(void)
1001 {
1002   bool bRequestVendorId(false);
1003   {
1004     CLockObject lock(m_mutex);
1005     bRequestVendorId = !m_bVendorIdRequested;
1006     m_bVendorIdRequested = true;
1007   }
1008
1009   if (bRequestVendorId)
1010   {
1011     ReplaceHandler(false);
1012     GetVendorId();
1013   }
1014 }
1015
1016 //@}