src/lib/CECProcessor.cpp

   1 /*
   2  * This file is part of the libCEC(R) library.
   3  *
   4  * libCEC(R) is Copyright (C) 2011 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 "CECProcessor.h"
  34
  35 #include "AdapterCommunication.h"
  36 #include "LibCEC.h"
  37 #include "util/StdString.h"
  38 #include "platform/timeutils.h"
  39
  40 using namespace CEC;
  41 using namespace std;
  42
  43 CCECProcessor::CCECProcessor(CLibCEC *controller, CAdapterCommunication *serComm, const char *strDeviceName, cec_logical_address iLogicalAddress /* = CECDEVICE_PLAYBACKDEVICE1 */, uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS*/) :
  44     m_physicaladdress(iPhysicalAddress),
  45     m_iLogicalAddress(iLogicalAddress),
  46     m_strDeviceName(strDeviceName),
  47     m_communication(serComm),
  48     m_controller(controller)
  49 {
  50   for (uint8_t iPtr = 0; iPtr < 16; iPtr++)
  51     m_vendorIds[iPtr] = CEC_VENDOR_UNKNOWN;
  52   for (uint8_t iPtr = 0; iPtr < 16; iPtr++)
  53     m_vendorClasses[iPtr] = (uint8_t) 0;
  54 }
  55
  56 CCECProcessor::~CCECProcessor(void)
  57 {
  58   StopThread();
  59   m_communication = NULL;
  60   m_controller = NULL;
  61 }
  62
  63 bool CCECProcessor::Start(void)
  64 {
  65   if (!m_communication || !m_communication->IsOpen())
  66   {
  67     m_controller->AddLog(CEC_LOG_ERROR, "connection is closed");
  68     return false;
  69   }
  70
  71   if (!SetLogicalAddress(m_iLogicalAddress))
  72   {
  73     m_controller->AddLog(CEC_LOG_ERROR, "could not set the logical address");
  74     return false;
  75   }
  76
  77   if (CreateThread())
  78     return true;
  79   else
  80     m_controller->AddLog(CEC_LOG_ERROR, "could not create a processor thread");
  81
  82   return false;
  83 }
  84
  85 void *CCECProcessor::Process(void)
  86 {
  87   m_controller->AddLog(CEC_LOG_DEBUG, "processor thread started");
  88
  89   cec_command command;
  90   cec_adapter_message msg;
  91
  92   while (!IsStopped())
  93   {
  94     bool bParseFrame(false);
  95     command.clear();
  96     msg.clear();
  97
  98     {
  99       CLockObject lock(&m_mutex);
 100       if (m_communication->IsOpen() && m_communication->Read(msg, 50))
 101         bParseFrame = ParseMessage(msg) && !IsStopped();
 102
 103       if (bParseFrame)
 104         command = m_currentframe;
 105     }
 106
 107     if (bParseFrame)
 108       ParseCommand(command);
 109
 110     m_controller->CheckKeypressTimeout();
 111
 112     if (!IsStopped())
 113       Sleep(5);
 114   }
 115
 116   return NULL;
 117 }
 118
 119 bool CCECProcessor::PowerOnDevices(cec_logical_address address /* = CECDEVICE_TV */)
 120 {
 121   if (!IsRunning())
 122     return false;
 123
 124   CStdString strLog;
 125   strLog.Format("<< powering on device with logical address %d", (int8_t)address);
 126   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 127
 128   cec_command command;
 129   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_IMAGE_VIEW_ON);
 130
 131   return Transmit(command);
 132 }
 133
 134 bool CCECProcessor::StandbyDevices(cec_logical_address address /* = CECDEVICE_BROADCAST */)
 135 {
 136   if (!IsRunning())
 137     return false;
 138
 139   CStdString strLog;
 140   strLog.Format("<< putting device with logical address %d in standby mode", (int8_t)address);
 141   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 142
 143   cec_command command;
 144   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_STANDBY);
 145
 146   return Transmit(command);
 147 }
 148
 149 bool CCECProcessor::SetActiveView(void)
 150 {
 151   if (!IsRunning())
 152     return false;
 153
 154   m_controller->AddLog(CEC_LOG_DEBUG, "<< setting active view");
 155
 156   cec_command command;
 157   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 158   command.parameters.push_back((m_physicaladdress >> 8) & 0xFF);
 159   command.parameters.push_back(m_physicaladdress & 0xFF);
 160
 161   return Transmit(command);
 162 }
 163
 164 bool CCECProcessor::SetInactiveView(void)
 165 {
 166   if (!IsRunning())
 167     return false;
 168
 169   m_controller->AddLog(CEC_LOG_DEBUG, "<< setting inactive view");
 170
 171   cec_command command;
 172   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_INACTIVE_SOURCE);
 173   command.parameters.push_back((m_physicaladdress >> 8) & 0xFF);
 174   command.parameters.push_back(m_physicaladdress & 0xFF);
 175
 176   return Transmit(command);
 177 }
 178
 179 void CCECProcessor::LogOutput(const cec_command &data)
 180 {
 181   CStdString txStr = "transmit ";
 182   txStr.AppendFormat(" %02x", ((uint8_t)data.initiator << 4) + (uint8_t)data.destination);
 183   txStr.AppendFormat(" %02x", (uint8_t)data.opcode);
 184
 185   for (uint8_t iPtr = 0; iPtr < data.parameters.size; iPtr++)
 186     txStr.AppendFormat(" %02x", data.parameters[iPtr]);
 187   m_controller->AddLog(CEC_LOG_DEBUG, txStr.c_str());
 188 }
 189
 190 bool CCECProcessor::Transmit(const cec_command &data, bool bWaitForAck /* = true */)
 191 {
 192   LogOutput(data);
 193
 194   cec_adapter_message output;
 195   output.clear();
 196   CAdapterCommunication::FormatAdapterMessage(data, output);
 197
 198   return TransmitFormatted(output, bWaitForAck);
 199 }
 200
 201 bool CCECProcessor::SetLogicalAddress(cec_logical_address iLogicalAddress)
 202 {
 203   CStdString strLog;
 204   strLog.Format("<< setting logical address to %d", iLogicalAddress);
 205   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 206
 207   m_iLogicalAddress = iLogicalAddress;
 208   return m_communication && m_communication->SetAckMask(0x1 << (uint8_t)m_iLogicalAddress);
 209 }
 210
 211 bool CCECProcessor::TransmitFormatted(const cec_adapter_message &data, bool bWaitForAck /* = true */)
 212 {
 213   CLockObject lock(&m_mutex);
 214   if (!m_communication || !m_communication->Write(data))
 215     return false;
 216
 217   if (bWaitForAck)
 218   {
 219     uint64_t now = GetTimeMs();
 220     uint64_t target = now + 1000;
 221     bool bError(false);
 222     bool bGotAck(false);
 223
 224     while (!bGotAck && now < target)
 225     {
 226       bGotAck = WaitForAck(&bError, (uint32_t) (target - now));
 227       now = GetTimeMs();
 228
 229       if (bError && now < target)
 230       {
 231         m_controller->AddLog(CEC_LOG_ERROR, "retransmitting previous frame");
 232         if (!m_communication->Write(data))
 233           return false;
 234       }
 235     }
 236   }
 237
 238   return true;
 239 }
 240
 241 void CCECProcessor::TransmitAbort(cec_logical_address address, cec_opcode opcode, ECecAbortReason reason /* = CEC_ABORT_REASON_UNRECOGNIZED_OPCODE */)
 242 {
 243   m_controller->AddLog(CEC_LOG_DEBUG, "<< transmitting abort message");
 244
 245   cec_command command;
 246   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_FEATURE_ABORT);
 247   command.parameters.push_back((uint8_t)opcode);
 248   command.parameters.push_back((uint8_t)reason);
 249
 250   Transmit(command);
 251 }
 252
 253 void CCECProcessor::ReportCECVersion(cec_logical_address address /* = CECDEVICE_TV */)
 254 {
 255   m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting CEC version as 1.3a");
 256
 257   cec_command command;
 258   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_CEC_VERSION);
 259   command.parameters.push_back(CEC_VERSION_1_3A);
 260
 261   Transmit(command);
 262 }
 263
 264 void CCECProcessor::ReportPowerState(cec_logical_address address /*= CECDEVICE_TV */, bool bOn /* = true */)
 265 {
 266   if (bOn)
 267     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting \"On\" power status");
 268   else
 269     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting \"Off\" power status");
 270
 271   cec_command command;
 272   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_REPORT_POWER_STATUS);
 273   command.parameters.push_back(bOn ? (uint8_t) CEC_POWER_STATUS_ON : (uint8_t) CEC_POWER_STATUS_STANDBY);
 274
 275   Transmit(command);
 276 }
 277
 278 void CCECProcessor::ReportMenuState(cec_logical_address address /* = CECDEVICE_TV */, bool bActive /* = true */)
 279 {
 280   if (bActive)
 281     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting menu state as active");
 282   else
 283     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting menu state as inactive");
 284
 285   cec_command command;
 286   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_MENU_STATUS);
 287   command.parameters.push_back(bActive ? (uint8_t) CEC_MENU_STATE_ACTIVATED : (uint8_t) CEC_MENU_STATE_DEACTIVATED);
 288
 289   Transmit(command);
 290 }
 291
 292 void CCECProcessor::ReportVendorID(cec_logical_address address /* = CECDEVICE_TV */)
 293 {
 294   m_controller->AddLog(CEC_LOG_NOTICE, "<< vendor ID requested, feature abort");
 295   TransmitAbort(address, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 296 }
 297
 298 void CCECProcessor::ReportOSDName(cec_logical_address address /* = CECDEVICE_TV */)
 299 {
 300   const char *osdname = m_strDeviceName.c_str();
 301   CStdString strLog;
 302   strLog.Format("<< reporting OSD name as %s", osdname);
 303   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 304
 305   cec_command command;
 306   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_SET_OSD_NAME);
 307   for (unsigned int iPtr = 0; iPtr < strlen(osdname); iPtr++)
 308     command.parameters.push_back(osdname[iPtr]);
 309
 310   Transmit(command);
 311 }
 312
 313 void CCECProcessor::ReportPhysicalAddress(void)
 314 {
 315   CStdString strLog;
 316   strLog.Format("<< reporting physical address as %04x", m_physicaladdress);
 317   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 318
 319   cec_command command;
 320   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 321   command.parameters.push_back((uint8_t) ((m_physicaladdress >> 8) & 0xFF));
 322   command.parameters.push_back((uint8_t) (m_physicaladdress & 0xFF));
 323
 324   Transmit(command);
 325 }
 326
 327 void CCECProcessor::BroadcastActiveSource(void)
 328 {
 329   m_controller->AddLog(CEC_LOG_NOTICE, "<< broadcasting active source");
 330
 331   cec_command command;
 332   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 333   command.parameters.push_back((uint8_t) ((m_physicaladdress >> 8) & 0xFF));
 334   command.parameters.push_back((uint8_t) (m_physicaladdress & 0xFF));
 335
 336   Transmit(command);
 337 }
 338
 339 bool CCECProcessor::WaitForAck(bool *bError, uint32_t iTimeout /* = 1000 */)
 340 {
 341   bool bGotAck(false);
 342   *bError = false;
 343
 344   int64_t iNow = GetTimeMs();
 345   int64_t iTargetTime = iNow + (uint64_t) iTimeout;
 346
 347   while (!bGotAck && !*bError && (iTimeout == 0 || iNow < iTargetTime))
 348   {
 349     cec_adapter_message msg;
 350     msg.clear();
 351
 352     if (!m_communication->Read(msg, iTimeout > 0 ? (int32_t)(iTargetTime - iNow) : 1000))
 353     {
 354       iNow = GetTimeMs();
 355       continue;
 356     }
 357
 358     switch (msg.message())
 359     {
 360     case MSGCODE_COMMAND_ACCEPTED:
 361       m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_COMMAND_ACCEPTED");
 362       break;
 363     case MSGCODE_TRANSMIT_SUCCEEDED:
 364       m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_TRANSMIT_SUCCEEDED");
 365       bGotAck = true;
 366       break;
 367     case MSGCODE_RECEIVE_FAILED:
 368       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_RECEIVE_FAILED");
 369       *bError = true;
 370       break;
 371     case MSGCODE_COMMAND_REJECTED:
 372       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_COMMAND_REJECTED");
 373       *bError = true;
 374       break;
 375     case MSGCODE_TRANSMIT_FAILED_LINE:
 376       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_LINE");
 377       *bError = true;
 378       break;
 379     case MSGCODE_TRANSMIT_FAILED_ACK:
 380       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_ACK");
 381       *bError = true;
 382       break;
 383     case MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA:
 384       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA");
 385       *bError = true;
 386       break;
 387     case MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE:
 388       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE");
 389       *bError = true;
 390       break;
 391     default:
 392       m_frameBuffer.Push(msg);
 393       break;
 394     }
 395
 396     iNow = GetTimeMs();
 397   }
 398
 399   return bGotAck && !*bError;
 400 }
 401
 402 bool CCECProcessor::ParseMessage(cec_adapter_message &msg)
 403 {
 404   bool bReturn(false);
 405
 406   if (msg.empty())
 407     return bReturn;
 408
 409   CStdString logStr;
 410
 411   switch(msg.message())
 412   {
 413   case MSGCODE_NOTHING:
 414     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_NOTHING");
 415     break;
 416   case MSGCODE_TIMEOUT_ERROR:
 417   case MSGCODE_HIGH_ERROR:
 418   case MSGCODE_LOW_ERROR:
 419     {
 420       if (msg.message() == MSGCODE_TIMEOUT_ERROR)
 421         logStr = "MSGCODE_TIMEOUT";
 422       else if (msg.message() == MSGCODE_HIGH_ERROR)
 423         logStr = "MSGCODE_HIGH_ERROR";
 424       else
 425         logStr = "MSGCODE_LOW_ERROR";
 426
 427       int iLine      = (msg.size() >= 3) ? (msg[1] << 8) | (msg[2]) : 0;
 428       uint32_t iTime = (msg.size() >= 7) ? (msg[3] << 24) | (msg[4] << 16) | (msg[5] << 8) | (msg[6]) : 0;
 429       logStr.AppendFormat(" line:%i", iLine);
 430       logStr.AppendFormat(" time:%u", iTime);
 431       m_controller->AddLog(CEC_LOG_WARNING, logStr.c_str());
 432     }
 433     break;
 434   case MSGCODE_FRAME_START:
 435     {
 436       logStr = "MSGCODE_FRAME_START";
 437       m_currentframe.clear();
 438       if (msg.size() >= 2)
 439       {
 440         logStr.AppendFormat(" initiator:%u destination:%u ack:%s %s", msg.initiator(), msg.destination(), msg.ack() ? "high" : "low", msg.eom() ? "eom" : "");
 441         m_currentframe.initiator   =  msg.initiator();
 442         m_currentframe.destination = msg.destination();
 443         m_currentframe.ack         = msg.ack();
 444         m_currentframe.eom         = msg.eom();
 445       }
 446       m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 447     }
 448     break;
 449   case MSGCODE_FRAME_DATA:
 450     {
 451       logStr = "MSGCODE_FRAME_DATA";
 452       if (msg.size() >= 2)
 453       {
 454         uint8_t iData = msg[1];
 455         logStr.AppendFormat(" %02x", iData);
 456         m_currentframe.push_back(iData);
 457       }
 458       m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 459     }
 460     if (msg.eom())
 461       bReturn = true;
 462     break;
 463   default:
 464     break;
 465   }
 466
 467   return bReturn;
 468 }
 469
 470 void CCECProcessor::ParseVendorId(cec_logical_address device, const cec_datapacket &data)
 471 {
 472   if (data.size < 3)
 473   {
 474     m_controller->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 475     return;
 476   }
 477
 478   uint64_t iVendorId = ((uint64_t)data[0] << 3) +
 479                        ((uint64_t)data[1] << 2) +
 480                         (uint64_t)data[2];
 481
 482   m_vendorIds[(uint8_t)device]     = iVendorId;
 483   m_vendorClasses[(uint8_t)device] = data.size >= 4 ? data[3] : 0;
 484
 485   CStdString strLog;
 486   strLog.Format("device %d: vendor = %s (%lld) class = %2x", (uint8_t)device, CECVendorIdToString(m_vendorIds[(uint8_t)device]), iVendorId, m_vendorClasses[(uint8_t)device]);
 487   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 488 }
 489
 490 void CCECProcessor::ParseCommand(cec_command &command)
 491 {
 492   CStdString dataStr;
 493   dataStr.Format(">> received frame: initiator: %u destination: %u", command.initiator, command.destination);
 494   if (command.parameters.size > 1)
 495   {
 496     dataStr += " data:";
 497     for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 498       dataStr.AppendFormat(" %02x", (unsigned int)command.parameters[iPtr]);
 499   }
 500   m_controller->AddLog(CEC_LOG_DEBUG, dataStr.c_str());
 501
 502   if (command.destination == m_iLogicalAddress)
 503   {
 504     switch(command.opcode)
 505     {
 506     case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
 507       ReportPhysicalAddress();
 508       break;
 509     case CEC_OPCODE_GIVE_OSD_NAME:
 510       ReportOSDName(command.initiator);
 511       break;
 512     case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
 513       ReportVendorID(command.initiator);
 514       break;
 515     case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 516       ParseVendorId(command.initiator, command.parameters);
 517       TransmitAbort(command.initiator, CEC_OPCODE_VENDOR_COMMAND_WITH_ID);
 518       break;
 519     case CEC_OPCODE_GIVE_DECK_STATUS:
 520       // need to support opcodes play and deck control before doing anything with this
 521       TransmitAbort(command.initiator, CEC_OPCODE_GIVE_DECK_STATUS);
 522       break;
 523     case CEC_OPCODE_MENU_REQUEST:
 524       if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_QUERY)
 525         ReportMenuState(command.initiator);
 526       break;
 527     case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 528       ReportPowerState(command.initiator);
 529       SetActiveView();
 530       break;
 531     case CEC_OPCODE_GET_CEC_VERSION:
 532       ReportCECVersion(command.initiator);
 533       break;
 534     case CEC_OPCODE_USER_CONTROL_PRESSED:
 535       if (command.parameters.size > 0)
 536       {
 537         m_controller->AddKey();
 538
 539         if (command.parameters[0] <= CEC_USER_CONTROL_CODE_MAX)
 540           m_controller->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 541       }
 542       break;
 543     case CEC_OPCODE_USER_CONTROL_RELEASE:
 544       m_controller->AddKey();
 545       break;
 546     case CEC_OPCODE_ROUTING_CHANGE:
 547       m_controller->SetActiveView();
 548       break;
 549     default:
 550       m_controller->AddCommand(command);
 551       break;
 552     }
 553   }
 554   else if (command.destination == CECDEVICE_BROADCAST)
 555   {
 556     CStdString strLog;
 557     if (command.opcode == CEC_OPCODE_REQUEST_ACTIVE_SOURCE)
 558     {
 559       strLog.Format(">> %i requests active source", (uint8_t) command.initiator);
 560       m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 561       BroadcastActiveSource();
 562     }
 563     else if (command.opcode == CEC_OPCODE_SET_STREAM_PATH)
 564     {
 565       if (command.parameters.size >= 2)
 566       {
 567         int streamaddr = ((int)command.parameters[0] << 8) | ((int)command.parameters[1]);
 568         strLog.Format(">> %i requests stream path from physical address %04x", command.initiator, streamaddr);
 569         m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 570         if (streamaddr == m_physicaladdress)
 571           BroadcastActiveSource();
 572       }
 573     }
 574     else
 575     {
 576       m_controller->AddCommand(command);
 577     }
 578   }
 579   else
 580   {
 581     CStdString strLog;
 582     strLog.Format("ignoring frame: destination: %u != %u", command.destination, (uint8_t)m_iLogicalAddress);
 583     m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 584   }
 585 }
 586
 587 const char *CCECProcessor::CECVendorIdToString(const uint64_t iVendorId)
 588 {
 589   switch (iVendorId)
 590   {
 591   case CEC_VENDOR_SAMSUNG:
 592     return "Samsung";
 593   default:
 594     return "Unknown";
 595   }
 596 }