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_iPhysicalAddress(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     bool bError(false);
  96     bool bTransmitSucceeded(false);
  97     command.clear();
  98     msg.clear();
  99
 100     {
 101       CLockObject lock(&m_mutex);
 102       if (m_communication->IsOpen() && m_communication->Read(msg, 50))
 103         ParseMessage(msg, &bError, &bTransmitSucceeded, &bParseFrame);
 104
 105       bParseFrame &= !IsStopped();
 106       if (bParseFrame)
 107         command = m_currentframe;
 108     }
 109
 110     if (bParseFrame)
 111       ParseCommand(command);
 112
 113     m_controller->CheckKeypressTimeout();
 114
 115     if (!IsStopped())
 116       Sleep(5);
 117   }
 118
 119   return NULL;
 120 }
 121
 122 bool CCECProcessor::PowerOnDevices(cec_logical_address address /* = CECDEVICE_TV */)
 123 {
 124   if (!IsRunning())
 125     return false;
 126
 127   CStdString strLog;
 128   strLog.Format("<< powering on device with logical address %d", (int8_t)address);
 129   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 130
 131   cec_command command;
 132   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_IMAGE_VIEW_ON);
 133
 134   return Transmit(command);
 135 }
 136
 137 bool CCECProcessor::StandbyDevices(cec_logical_address address /* = CECDEVICE_BROADCAST */)
 138 {
 139   if (!IsRunning())
 140     return false;
 141
 142   CStdString strLog;
 143   strLog.Format("<< putting device with logical address %d in standby mode", (int8_t)address);
 144   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 145
 146   cec_command command;
 147   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_STANDBY);
 148
 149   return Transmit(command);
 150 }
 151
 152 bool CCECProcessor::SetActiveView(void)
 153 {
 154   if (!IsRunning())
 155     return false;
 156
 157   m_controller->AddLog(CEC_LOG_DEBUG, "<< setting active view");
 158
 159   cec_command command;
 160   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 161   command.parameters.push_back((m_iPhysicalAddress >> 8) & 0xFF);
 162   command.parameters.push_back(m_iPhysicalAddress & 0xFF);
 163
 164   return Transmit(command);
 165 }
 166
 167 bool CCECProcessor::SetInactiveView(void)
 168 {
 169   if (!IsRunning())
 170     return false;
 171
 172   m_controller->AddLog(CEC_LOG_DEBUG, "<< setting inactive view");
 173
 174   cec_command command;
 175   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_INACTIVE_SOURCE);
 176   command.parameters.push_back((m_iPhysicalAddress >> 8) & 0xFF);
 177   command.parameters.push_back(m_iPhysicalAddress & 0xFF);
 178
 179   return Transmit(command);
 180 }
 181
 182 void CCECProcessor::LogOutput(const cec_command &data)
 183 {
 184   CStdString txStr = "transmit ";
 185   txStr.AppendFormat(" %02x", ((uint8_t)data.initiator << 4) + (uint8_t)data.destination);
 186   txStr.AppendFormat(" %02x", (uint8_t)data.opcode);
 187
 188   for (uint8_t iPtr = 0; iPtr < data.parameters.size; iPtr++)
 189     txStr.AppendFormat(" %02x", data.parameters[iPtr]);
 190   m_controller->AddLog(CEC_LOG_DEBUG, txStr.c_str());
 191 }
 192
 193 bool CCECProcessor::Transmit(const cec_command &data, bool bWaitForAck /* = true */)
 194 {
 195   LogOutput(data);
 196
 197   cec_adapter_message output;
 198   output.clear();
 199   CAdapterCommunication::FormatAdapterMessage(data, output);
 200
 201   return TransmitFormatted(output, bWaitForAck);
 202 }
 203
 204 bool CCECProcessor::SetLogicalAddress(cec_logical_address iLogicalAddress)
 205 {
 206   CStdString strLog;
 207   strLog.Format("<< setting logical address to %1x", iLogicalAddress);
 208   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 209
 210   m_iLogicalAddress = iLogicalAddress;
 211   return m_communication && m_communication->SetAckMask(0x1 << (uint8_t)m_iLogicalAddress);
 212 }
 213
 214 bool CCECProcessor::SetPhysicalAddress(uint16_t iPhysicalAddress)
 215 {
 216   CStdString strLog;
 217   strLog.Format("<< setting physical address to %2x", iPhysicalAddress);
 218   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 219
 220   m_iPhysicalAddress = iPhysicalAddress;
 221   return SetActiveView();
 222 }
 223
 224 bool CCECProcessor::SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage)
 225 {
 226   CStdString strLog;
 227   strLog.Format("<< display message '%s'", strMessage);
 228   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 229
 230   cec_command command;
 231   cec_command::format(command, m_iLogicalAddress, iLogicalAddress, CEC_OPCODE_SET_OSD_STRING);
 232   command.parameters.push_back((uint8_t)duration);
 233
 234   for (unsigned int iPtr = 0; iPtr < strlen(strMessage); iPtr++)
 235     command.parameters.push_back(strMessage[iPtr]);
 236
 237   return Transmit(command);
 238 }
 239
 240 bool CCECProcessor::TransmitFormatted(const cec_adapter_message &data, bool bWaitForAck /* = true */)
 241 {
 242   CLockObject lock(&m_mutex);
 243   if (!m_communication || !m_communication->Write(data))
 244     return false;
 245
 246   if (bWaitForAck)
 247   {
 248     uint64_t now = GetTimeMs();
 249     uint64_t target = now + 1000;
 250     bool bError(false);
 251     bool bGotAck(false);
 252
 253     while (!bGotAck && now < target)
 254     {
 255       bGotAck = WaitForAck(&bError, (uint32_t) (target - now));
 256       now = GetTimeMs();
 257
 258       if (bError && now < target)
 259       {
 260         m_controller->AddLog(CEC_LOG_ERROR, "retransmitting previous frame");
 261         if (!m_communication->Write(data))
 262           return false;
 263       }
 264     }
 265   }
 266
 267   return true;
 268 }
 269
 270 void CCECProcessor::TransmitAbort(cec_logical_address address, cec_opcode opcode, ECecAbortReason reason /* = CEC_ABORT_REASON_UNRECOGNIZED_OPCODE */)
 271 {
 272   m_controller->AddLog(CEC_LOG_DEBUG, "<< transmitting abort message");
 273
 274   cec_command command;
 275   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_FEATURE_ABORT);
 276   command.parameters.push_back((uint8_t)opcode);
 277   command.parameters.push_back((uint8_t)reason);
 278
 279   Transmit(command);
 280 }
 281
 282 void CCECProcessor::ReportCECVersion(cec_logical_address address /* = CECDEVICE_TV */)
 283 {
 284   m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting CEC version as 1.3a");
 285
 286   cec_command command;
 287   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_CEC_VERSION);
 288   command.parameters.push_back(CEC_VERSION_1_3A);
 289
 290   Transmit(command);
 291 }
 292
 293 void CCECProcessor::ReportPowerState(cec_logical_address address /*= CECDEVICE_TV */, bool bOn /* = true */)
 294 {
 295   if (bOn)
 296     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting \"On\" power status");
 297   else
 298     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting \"Off\" power status");
 299
 300   cec_command command;
 301   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_REPORT_POWER_STATUS);
 302   command.parameters.push_back(bOn ? (uint8_t) CEC_POWER_STATUS_ON : (uint8_t) CEC_POWER_STATUS_STANDBY);
 303
 304   Transmit(command);
 305 }
 306
 307 void CCECProcessor::ReportMenuState(cec_logical_address address /* = CECDEVICE_TV */, bool bActive /* = true */)
 308 {
 309   if (bActive)
 310     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting menu state as active");
 311   else
 312     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting menu state as inactive");
 313
 314   cec_command command;
 315   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_MENU_STATUS);
 316   command.parameters.push_back(bActive ? (uint8_t) CEC_MENU_STATE_ACTIVATED : (uint8_t) CEC_MENU_STATE_DEACTIVATED);
 317
 318   Transmit(command);
 319 }
 320
 321 void CCECProcessor::ReportVendorID(cec_logical_address address /* = CECDEVICE_TV */)
 322 {
 323   m_controller->AddLog(CEC_LOG_NOTICE, "<< vendor ID requested, feature abort");
 324   TransmitAbort(address, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 325 }
 326
 327 void CCECProcessor::ReportOSDName(cec_logical_address address /* = CECDEVICE_TV */)
 328 {
 329   const char *osdname = m_strDeviceName.c_str();
 330   CStdString strLog;
 331   strLog.Format("<< reporting OSD name as %s", osdname);
 332   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 333
 334   cec_command command;
 335   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_SET_OSD_NAME);
 336   for (unsigned int iPtr = 0; iPtr < strlen(osdname); iPtr++)
 337     command.parameters.push_back(osdname[iPtr]);
 338
 339   Transmit(command);
 340 }
 341
 342 void CCECProcessor::ReportPhysicalAddress(void)
 343 {
 344   CStdString strLog;
 345   strLog.Format("<< reporting physical address as %04x", m_iPhysicalAddress);
 346   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 347
 348   cec_command command;
 349   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 350   command.parameters.push_back((uint8_t) ((m_iPhysicalAddress >> 8) & 0xFF));
 351   command.parameters.push_back((uint8_t) (m_iPhysicalAddress & 0xFF));
 352   command.parameters.push_back((uint8_t) (CEC_DEVICE_TYPE_PLAYBACK_DEVICE));
 353
 354   Transmit(command);
 355 }
 356
 357 void CCECProcessor::BroadcastActiveSource(void)
 358 {
 359   m_controller->AddLog(CEC_LOG_NOTICE, "<< broadcasting active source");
 360
 361   cec_command command;
 362   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 363   command.parameters.push_back((uint8_t) ((m_iPhysicalAddress >> 8) & 0xFF));
 364   command.parameters.push_back((uint8_t) (m_iPhysicalAddress & 0xFF));
 365
 366   Transmit(command);
 367 }
 368
 369 bool CCECProcessor::WaitForAck(bool *bError, uint32_t iTimeout /* = 1000 */)
 370 {
 371   bool bTransmitSucceeded = false, bEom = false;
 372   *bError = false;
 373
 374   int64_t iNow = GetTimeMs();
 375   int64_t iTargetTime = iNow + (uint64_t) iTimeout;
 376
 377   while (!bTransmitSucceeded && !*bError && (iTimeout == 0 || iNow < iTargetTime))
 378   {
 379     cec_adapter_message msg;
 380     msg.clear();
 381
 382     if (!m_communication->Read(msg, iTimeout > 0 ? (int32_t)(iTargetTime - iNow) : 1000))
 383     {
 384       iNow = GetTimeMs();
 385       continue;
 386     }
 387
 388     ParseMessage(msg, bError, &bTransmitSucceeded, &bEom, false);
 389     iNow = GetTimeMs();
 390   }
 391
 392   return bTransmitSucceeded && !*bError;
 393 }
 394
 395 void CCECProcessor::ParseMessage(cec_adapter_message &msg, bool *bError, bool *bTransmitSucceeded, bool *bEom, bool bProcessMessages /* = true */)
 396 {
 397   *bError = false;
 398   *bTransmitSucceeded = false;
 399   *bEom = false;
 400
 401   if (msg.empty())
 402     return;
 403
 404   CStdString logStr;
 405
 406   switch(msg.message())
 407   {
 408   case MSGCODE_NOTHING:
 409     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_NOTHING");
 410     break;
 411   case MSGCODE_TIMEOUT_ERROR:
 412   case MSGCODE_HIGH_ERROR:
 413   case MSGCODE_LOW_ERROR:
 414     {
 415       if (msg.message() == MSGCODE_TIMEOUT_ERROR)
 416         logStr = "MSGCODE_TIMEOUT";
 417       else if (msg.message() == MSGCODE_HIGH_ERROR)
 418         logStr = "MSGCODE_HIGH_ERROR";
 419       else
 420         logStr = "MSGCODE_LOW_ERROR";
 421
 422       int iLine      = (msg.size() >= 3) ? (msg[1] << 8) | (msg[2]) : 0;
 423       uint32_t iTime = (msg.size() >= 7) ? (msg[3] << 24) | (msg[4] << 16) | (msg[5] << 8) | (msg[6]) : 0;
 424       logStr.AppendFormat(" line:%i", iLine);
 425       logStr.AppendFormat(" time:%u", iTime);
 426       m_controller->AddLog(CEC_LOG_WARNING, logStr.c_str());
 427       *bError = true;
 428     }
 429     break;
 430   case MSGCODE_FRAME_START:
 431     {
 432       if (bProcessMessages)
 433       {
 434         logStr = "MSGCODE_FRAME_START";
 435         m_currentframe.clear();
 436         if (msg.size() >= 2)
 437         {
 438           logStr.AppendFormat(" initiator:%u destination:%u ack:%s %s", msg.initiator(), msg.destination(), msg.ack() ? "high" : "low", msg.eom() ? "eom" : "");
 439           m_currentframe.initiator   = msg.initiator();
 440           m_currentframe.destination = msg.destination();
 441           m_currentframe.ack         = msg.ack();
 442           m_currentframe.eom         = msg.eom();
 443         }
 444         m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 445       }
 446       else
 447       {
 448         m_frameBuffer.Push(msg);
 449       }
 450     }
 451     break;
 452   case MSGCODE_FRAME_DATA:
 453     {
 454       if (bProcessMessages)
 455       {
 456         logStr = "MSGCODE_FRAME_DATA";
 457         if (msg.size() >= 2)
 458         {
 459           uint8_t iData = msg[1];
 460           logStr.AppendFormat(" %02x", iData);
 461           m_currentframe.push_back(iData);
 462           m_currentframe.eom = msg.eom();
 463         }
 464         m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 465       }
 466       else
 467       {
 468         m_frameBuffer.Push(msg);
 469       }
 470
 471       *bEom = msg.eom();
 472     }
 473     break;
 474   case MSGCODE_COMMAND_ACCEPTED:
 475     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_COMMAND_ACCEPTED");
 476     break;
 477   case MSGCODE_TRANSMIT_SUCCEEDED:
 478     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_TRANSMIT_SUCCEEDED");
 479     *bTransmitSucceeded = true;
 480     break;
 481   case MSGCODE_RECEIVE_FAILED:
 482     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_RECEIVE_FAILED");
 483     *bError = true;
 484     break;
 485   case MSGCODE_COMMAND_REJECTED:
 486     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_COMMAND_REJECTED");
 487     *bError = true;
 488     break;
 489   case MSGCODE_TRANSMIT_FAILED_LINE:
 490     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_LINE");
 491     *bError = true;
 492     break;
 493   case MSGCODE_TRANSMIT_FAILED_ACK:
 494     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_ACK");
 495     *bError = true;
 496     break;
 497   case MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA:
 498     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA");
 499     *bError = true;
 500     break;
 501   case MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE:
 502     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE");
 503     *bError = true;
 504     break;
 505   default:
 506     break;
 507   }
 508 }
 509
 510 void CCECProcessor::ParseVendorId(cec_logical_address device, const cec_datapacket &data)
 511 {
 512   if (data.size < 3)
 513   {
 514     m_controller->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 515     return;
 516   }
 517
 518   uint64_t iVendorId = ((uint64_t)data[0] << 3) +
 519                        ((uint64_t)data[1] << 2) +
 520                         (uint64_t)data[2];
 521
 522   m_vendorIds[(uint8_t)device]     = iVendorId;
 523   m_vendorClasses[(uint8_t)device] = data.size >= 4 ? data[3] : 0;
 524
 525   CStdString strLog;
 526   strLog.Format("device %d: vendor = %s (%lld) class = %2x", (uint8_t)device, CECVendorIdToString(m_vendorIds[(uint8_t)device]), iVendorId, m_vendorClasses[(uint8_t)device]);
 527   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 528 }
 529
 530 void CCECProcessor::ParseCommand(cec_command &command)
 531 {
 532   CStdString dataStr;
 533   dataStr.Format(">> received frame: initiator: %u destination: %u", command.initiator, command.destination);
 534   if (command.parameters.size > 1)
 535   {
 536     dataStr += " data:";
 537     for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 538       dataStr.AppendFormat(" %02x", (unsigned int)command.parameters[iPtr]);
 539   }
 540   m_controller->AddLog(CEC_LOG_DEBUG, dataStr.c_str());
 541
 542   if (command.destination == m_iLogicalAddress)
 543   {
 544     switch(command.opcode)
 545     {
 546     case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
 547       ReportPhysicalAddress();
 548       break;
 549     case CEC_OPCODE_GIVE_OSD_NAME:
 550       ReportOSDName(command.initiator);
 551       break;
 552     case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
 553       ReportVendorID(command.initiator);
 554       break;
 555     case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 556       ParseVendorId(command.initiator, command.parameters);
 557       TransmitAbort(command.initiator, CEC_OPCODE_VENDOR_COMMAND_WITH_ID);
 558       break;
 559     case CEC_OPCODE_GIVE_DECK_STATUS:
 560       // need to support opcodes play and deck control before doing anything with this
 561       TransmitAbort(command.initiator, CEC_OPCODE_GIVE_DECK_STATUS);
 562       break;
 563     case CEC_OPCODE_MENU_REQUEST:
 564       if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_QUERY)
 565         ReportMenuState(command.initiator);
 566       break;
 567     case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 568       ReportPowerState(command.initiator);
 569       break;
 570     case CEC_OPCODE_GET_CEC_VERSION:
 571       ReportCECVersion(command.initiator);
 572       break;
 573     case CEC_OPCODE_USER_CONTROL_PRESSED:
 574       if (command.parameters.size > 0)
 575       {
 576         m_controller->AddKey();
 577
 578         if (command.parameters[0] <= CEC_USER_CONTROL_CODE_MAX)
 579         {
 580           CStdString strLog;
 581           strLog.Format("key pressed: %1x", command.parameters[0]);
 582           m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 583
 584           m_controller->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 585         }
 586       }
 587       break;
 588     case CEC_OPCODE_USER_CONTROL_RELEASE:
 589       m_controller->AddKey();
 590       break;
 591     default:
 592       m_controller->AddCommand(command);
 593       break;
 594     }
 595   }
 596   else if (command.destination == CECDEVICE_BROADCAST)
 597   {
 598     CStdString strLog;
 599     switch (command.opcode)
 600     {
 601     case CEC_OPCODE_REQUEST_ACTIVE_SOURCE:
 602       strLog.Format(">> %i requests active source", (uint8_t) command.initiator);
 603       m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 604       BroadcastActiveSource();
 605       break;
 606     case CEC_OPCODE_SET_STREAM_PATH:
 607       if (command.parameters.size >= 2)
 608       {
 609         int streamaddr = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 610         strLog.Format(">> %i requests stream path from physical address %04x", command.initiator, streamaddr);
 611         m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 612         if (streamaddr == m_iPhysicalAddress)
 613           BroadcastActiveSource();
 614       }
 615       break;
 616     case CEC_OPCODE_ROUTING_CHANGE:
 617       if (command.parameters.size == 4)
 618       {
 619         uint16_t iOldAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 620         uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 621         strLog.Format(">> %i changed physical address from %04x to %04x", command.initiator, iOldAddress, iNewAddress);
 622         m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 623
 624         m_controller->AddCommand(command);
 625       }
 626       break;
 627     default:
 628       m_controller->AddCommand(command);
 629       break;
 630     }
 631   }
 632   else
 633   {
 634     CStdString strLog;
 635     strLog.Format("ignoring frame: destination: %u != %u", command.destination, (uint8_t)m_iLogicalAddress);
 636     m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 637   }
 638 }
 639
 640 const char *CCECProcessor::CECVendorIdToString(const uint64_t iVendorId)
 641 {
 642   switch (iVendorId)
 643   {
 644   case CEC_VENDOR_SAMSUNG:
 645     return "Samsung";
 646   default:
 647     return "Unknown";
 648   }
 649 }