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     m_bMonitor(false)
  50 {
  51   for (uint8_t iPtr = 0; iPtr < 16; iPtr++)
  52     m_vendorIds[iPtr] = CEC_VENDOR_UNKNOWN;
  53   for (uint8_t iPtr = 0; iPtr < 16; iPtr++)
  54     m_vendorClasses[iPtr] = (uint8_t) 0;
  55 }
  56
  57 CCECProcessor::~CCECProcessor(void)
  58 {
  59   StopThread();
  60   m_communication = NULL;
  61   m_controller = NULL;
  62 }
  63
  64 bool CCECProcessor::Start(void)
  65 {
  66   if (!m_communication || !m_communication->IsOpen())
  67   {
  68     m_controller->AddLog(CEC_LOG_ERROR, "connection is closed");
  69     return false;
  70   }
  71
  72   if (!SetLogicalAddress(m_iLogicalAddress))
  73   {
  74     m_controller->AddLog(CEC_LOG_ERROR, "could not set the logical address");
  75     return false;
  76   }
  77
  78   if (CreateThread())
  79     return true;
  80   else
  81     m_controller->AddLog(CEC_LOG_ERROR, "could not create a processor thread");
  82
  83   return false;
  84 }
  85
  86 void *CCECProcessor::Process(void)
  87 {
  88   m_controller->AddLog(CEC_LOG_DEBUG, "processor thread started");
  89
  90   cec_command command;
  91   cec_adapter_message msg;
  92
  93   while (!IsStopped())
  94   {
  95     bool bParseFrame(false);
  96     bool bError(false);
  97     bool bTransmitSucceeded(false);
  98     command.clear();
  99     msg.clear();
 100
 101     {
 102       CLockObject lock(&m_mutex);
 103       if (m_communication->IsOpen() && m_communication->Read(msg, 50))
 104         ParseMessage(msg, &bError, &bTransmitSucceeded, &bParseFrame);
 105
 106       bParseFrame &= !IsStopped();
 107       if (bParseFrame)
 108         command = m_currentframe;
 109     }
 110
 111     if (bParseFrame)
 112       ParseCommand(command);
 113
 114     m_controller->CheckKeypressTimeout();
 115
 116     if (!IsStopped())
 117       Sleep(5);
 118   }
 119
 120   return NULL;
 121 }
 122
 123 bool CCECProcessor::PowerOnDevices(cec_logical_address address /* = CECDEVICE_TV */)
 124 {
 125   if (!IsRunning())
 126     return false;
 127
 128   CStdString strLog;
 129   strLog.Format("<< powering on device with logical address %d", (int8_t)address);
 130   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 131
 132   cec_command command;
 133   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_IMAGE_VIEW_ON);
 134
 135   return Transmit(command);
 136 }
 137
 138 bool CCECProcessor::StandbyDevices(cec_logical_address address /* = CECDEVICE_BROADCAST */)
 139 {
 140   if (!IsRunning())
 141     return false;
 142
 143   CStdString strLog;
 144   strLog.Format("<< putting device with logical address %d in standby mode", (int8_t)address);
 145   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 146
 147   cec_command command;
 148   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_STANDBY);
 149
 150   return Transmit(command);
 151 }
 152
 153 bool CCECProcessor::SetActiveView(void)
 154 {
 155   if (!IsRunning())
 156     return false;
 157
 158   m_controller->AddLog(CEC_LOG_DEBUG, "<< setting active view");
 159
 160   cec_command command;
 161   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 162   command.parameters.push_back((m_iPhysicalAddress >> 8) & 0xFF);
 163   command.parameters.push_back(m_iPhysicalAddress & 0xFF);
 164
 165   return Transmit(command);
 166 }
 167
 168 bool CCECProcessor::SetInactiveView(void)
 169 {
 170   if (!IsRunning())
 171     return false;
 172
 173   m_controller->AddLog(CEC_LOG_DEBUG, "<< setting inactive view");
 174
 175   cec_command command;
 176   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_INACTIVE_SOURCE);
 177   command.parameters.push_back((m_iPhysicalAddress >> 8) & 0xFF);
 178   command.parameters.push_back(m_iPhysicalAddress & 0xFF);
 179
 180   return Transmit(command);
 181 }
 182
 183 void CCECProcessor::LogOutput(const cec_command &data)
 184 {
 185   CStdString txStr = "transmit ";
 186   txStr.AppendFormat(" %02x", ((uint8_t)data.initiator << 4) + (uint8_t)data.destination);
 187   txStr.AppendFormat(" %02x", (uint8_t)data.opcode);
 188
 189   for (uint8_t iPtr = 0; iPtr < data.parameters.size; iPtr++)
 190     txStr.AppendFormat(" %02x", data.parameters[iPtr]);
 191   m_controller->AddLog(CEC_LOG_DEBUG, txStr.c_str());
 192 }
 193
 194 bool CCECProcessor::Transmit(const cec_command &data, bool bWaitForAck /* = true */)
 195 {
 196   LogOutput(data);
 197
 198   cec_adapter_message output;
 199   output.clear();
 200   CAdapterCommunication::FormatAdapterMessage(data, output);
 201
 202   return TransmitFormatted(output, bWaitForAck);
 203 }
 204
 205 bool CCECProcessor::SetLogicalAddress(cec_logical_address iLogicalAddress)
 206 {
 207   CStdString strLog;
 208   strLog.Format("<< setting logical address to %1x", iLogicalAddress);
 209   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 210
 211   m_iLogicalAddress = iLogicalAddress;
 212   return m_communication && m_communication->SetAckMask(0x1 << (uint8_t)m_iLogicalAddress);
 213 }
 214
 215 bool CCECProcessor::SetPhysicalAddress(uint16_t iPhysicalAddress)
 216 {
 217   CStdString strLog;
 218   strLog.Format("<< setting physical address to %2x", iPhysicalAddress);
 219   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 220
 221   m_iPhysicalAddress = iPhysicalAddress;
 222   return SetActiveView();
 223 }
 224
 225 bool CCECProcessor::SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage)
 226 {
 227   CStdString strLog;
 228   strLog.Format("<< display message '%s'", strMessage);
 229   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 230
 231   cec_command command;
 232   cec_command::format(command, m_iLogicalAddress, iLogicalAddress, CEC_OPCODE_SET_OSD_STRING);
 233   command.parameters.push_back((uint8_t)duration);
 234
 235   for (unsigned int iPtr = 0; iPtr < strlen(strMessage); iPtr++)
 236     command.parameters.push_back(strMessage[iPtr]);
 237
 238   return Transmit(command);
 239 }
 240
 241 bool CCECProcessor::SwitchMonitoring(bool bEnable)
 242 {
 243   CStdString strLog;
 244   strLog.Format("== %s monitoring mode ==", bEnable ? "enabling" : "disabling");
 245   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 246
 247   m_bMonitor = bEnable;
 248   if (bEnable)
 249     return m_communication && m_communication->SetAckMask(0);
 250   else
 251     return m_communication && m_communication->SetAckMask(0x1 << (uint8_t)m_iLogicalAddress);
 252 }
 253
 254 bool CCECProcessor::TransmitFormatted(const cec_adapter_message &data, bool bWaitForAck /* = true */)
 255 {
 256   CLockObject lock(&m_mutex);
 257   if (!m_communication || !m_communication->Write(data))
 258     return false;
 259
 260   if (bWaitForAck)
 261   {
 262     uint64_t now = GetTimeMs();
 263     uint64_t target = now + 1000;
 264     bool bError(false);
 265     bool bGotAck(false);
 266
 267     while (!bGotAck && now < target)
 268     {
 269       bGotAck = WaitForAck(&bError, (uint32_t) (target - now));
 270       now = GetTimeMs();
 271
 272       if (bError && now < target)
 273       {
 274         m_controller->AddLog(CEC_LOG_ERROR, "retransmitting previous frame");
 275         if (!m_communication->Write(data))
 276           return false;
 277       }
 278     }
 279   }
 280
 281   return true;
 282 }
 283
 284 void CCECProcessor::TransmitAbort(cec_logical_address address, cec_opcode opcode, ECecAbortReason reason /* = CEC_ABORT_REASON_UNRECOGNIZED_OPCODE */)
 285 {
 286   m_controller->AddLog(CEC_LOG_DEBUG, "<< transmitting abort message");
 287
 288   cec_command command;
 289   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_FEATURE_ABORT);
 290   command.parameters.push_back((uint8_t)opcode);
 291   command.parameters.push_back((uint8_t)reason);
 292
 293   Transmit(command);
 294 }
 295
 296 void CCECProcessor::ReportCECVersion(cec_logical_address address /* = CECDEVICE_TV */)
 297 {
 298   m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting CEC version as 1.3a");
 299
 300   cec_command command;
 301   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_CEC_VERSION);
 302   command.parameters.push_back(CEC_VERSION_1_3A);
 303
 304   Transmit(command);
 305 }
 306
 307 void CCECProcessor::ReportPowerState(cec_logical_address address /*= CECDEVICE_TV */, bool bOn /* = true */)
 308 {
 309   if (bOn)
 310     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting \"On\" power status");
 311   else
 312     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting \"Off\" power status");
 313
 314   cec_command command;
 315   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_REPORT_POWER_STATUS);
 316   command.parameters.push_back(bOn ? (uint8_t) CEC_POWER_STATUS_ON : (uint8_t) CEC_POWER_STATUS_STANDBY);
 317
 318   Transmit(command);
 319 }
 320
 321 void CCECProcessor::ReportMenuState(cec_logical_address address /* = CECDEVICE_TV */, bool bActive /* = true */)
 322 {
 323   if (bActive)
 324     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting menu state as active");
 325   else
 326     m_controller->AddLog(CEC_LOG_NOTICE, "<< reporting menu state as inactive");
 327
 328   cec_command command;
 329   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_MENU_STATUS);
 330   command.parameters.push_back(bActive ? (uint8_t) CEC_MENU_STATE_ACTIVATED : (uint8_t) CEC_MENU_STATE_DEACTIVATED);
 331
 332   Transmit(command);
 333 }
 334
 335 void CCECProcessor::ReportVendorID(cec_logical_address address /* = CECDEVICE_TV */)
 336 {
 337   m_controller->AddLog(CEC_LOG_NOTICE, "<< vendor ID requested, feature abort");
 338   TransmitAbort(address, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 339 }
 340
 341 void CCECProcessor::ReportOSDName(cec_logical_address address /* = CECDEVICE_TV */)
 342 {
 343   const char *osdname = m_strDeviceName.c_str();
 344   CStdString strLog;
 345   strLog.Format("<< reporting OSD name as %s", osdname);
 346   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 347
 348   cec_command command;
 349   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_SET_OSD_NAME);
 350   for (unsigned int iPtr = 0; iPtr < strlen(osdname); iPtr++)
 351     command.parameters.push_back(osdname[iPtr]);
 352
 353   Transmit(command);
 354 }
 355
 356 void CCECProcessor::ReportPhysicalAddress(void)
 357 {
 358   CStdString strLog;
 359   strLog.Format("<< reporting physical address as %04x", m_iPhysicalAddress);
 360   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 361
 362   cec_command command;
 363   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 364   command.parameters.push_back((uint8_t) ((m_iPhysicalAddress >> 8) & 0xFF));
 365   command.parameters.push_back((uint8_t) (m_iPhysicalAddress & 0xFF));
 366   command.parameters.push_back((uint8_t) (CEC_DEVICE_TYPE_PLAYBACK_DEVICE));
 367
 368   Transmit(command);
 369 }
 370
 371 void CCECProcessor::BroadcastActiveSource(void)
 372 {
 373   m_controller->AddLog(CEC_LOG_NOTICE, "<< broadcasting active source");
 374
 375   cec_command command;
 376   cec_command::format(command, m_iLogicalAddress, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 377   command.parameters.push_back((uint8_t) ((m_iPhysicalAddress >> 8) & 0xFF));
 378   command.parameters.push_back((uint8_t) (m_iPhysicalAddress & 0xFF));
 379
 380   Transmit(command);
 381 }
 382
 383 bool CCECProcessor::WaitForAck(bool *bError, uint32_t iTimeout /* = 1000 */)
 384 {
 385   bool bTransmitSucceeded = false, bEom = false;
 386   *bError = false;
 387
 388   int64_t iNow = GetTimeMs();
 389   int64_t iTargetTime = iNow + (uint64_t) iTimeout;
 390
 391   while (!bTransmitSucceeded && !*bError && (iTimeout == 0 || iNow < iTargetTime))
 392   {
 393     cec_adapter_message msg;
 394     msg.clear();
 395
 396     if (!m_communication->Read(msg, iTimeout > 0 ? (int32_t)(iTargetTime - iNow) : 1000))
 397     {
 398       iNow = GetTimeMs();
 399       continue;
 400     }
 401
 402     ParseMessage(msg, bError, &bTransmitSucceeded, &bEom, false);
 403     iNow = GetTimeMs();
 404   }
 405
 406   return bTransmitSucceeded && !*bError;
 407 }
 408
 409 void CCECProcessor::ParseMessage(cec_adapter_message &msg, bool *bError, bool *bTransmitSucceeded, bool *bEom, bool bProcessMessages /* = true */)
 410 {
 411   *bError = false;
 412   *bTransmitSucceeded = false;
 413   *bEom = false;
 414
 415   if (msg.empty())
 416     return;
 417
 418   CStdString logStr;
 419
 420   switch(msg.message())
 421   {
 422   case MSGCODE_NOTHING:
 423     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_NOTHING");
 424     break;
 425   case MSGCODE_TIMEOUT_ERROR:
 426   case MSGCODE_HIGH_ERROR:
 427   case MSGCODE_LOW_ERROR:
 428     {
 429       if (msg.message() == MSGCODE_TIMEOUT_ERROR)
 430         logStr = "MSGCODE_TIMEOUT";
 431       else if (msg.message() == MSGCODE_HIGH_ERROR)
 432         logStr = "MSGCODE_HIGH_ERROR";
 433       else
 434         logStr = "MSGCODE_LOW_ERROR";
 435
 436       int iLine      = (msg.size() >= 3) ? (msg[1] << 8) | (msg[2]) : 0;
 437       uint32_t iTime = (msg.size() >= 7) ? (msg[3] << 24) | (msg[4] << 16) | (msg[5] << 8) | (msg[6]) : 0;
 438       logStr.AppendFormat(" line:%i", iLine);
 439       logStr.AppendFormat(" time:%u", iTime);
 440       m_controller->AddLog(CEC_LOG_WARNING, logStr.c_str());
 441       *bError = true;
 442     }
 443     break;
 444   case MSGCODE_FRAME_START:
 445     {
 446       if (bProcessMessages)
 447       {
 448         logStr = "MSGCODE_FRAME_START";
 449         m_currentframe.clear();
 450         if (msg.size() >= 2)
 451         {
 452           logStr.AppendFormat(" initiator:%u destination:%u ack:%s %s", msg.initiator(), msg.destination(), msg.ack() ? "high" : "low", msg.eom() ? "eom" : "");
 453           m_currentframe.initiator   = msg.initiator();
 454           m_currentframe.destination = msg.destination();
 455           m_currentframe.ack         = msg.ack();
 456           m_currentframe.eom         = msg.eom();
 457         }
 458         m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 459       }
 460       else
 461       {
 462         m_frameBuffer.Push(msg);
 463       }
 464     }
 465     break;
 466   case MSGCODE_FRAME_DATA:
 467     {
 468       if (bProcessMessages)
 469       {
 470         logStr = "MSGCODE_FRAME_DATA";
 471         if (msg.size() >= 2)
 472         {
 473           uint8_t iData = msg[1];
 474           logStr.AppendFormat(" %02x", iData);
 475           m_currentframe.push_back(iData);
 476           m_currentframe.eom = msg.eom();
 477         }
 478         m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 479       }
 480       else
 481       {
 482         m_frameBuffer.Push(msg);
 483       }
 484
 485       *bEom = msg.eom();
 486     }
 487     break;
 488   case MSGCODE_COMMAND_ACCEPTED:
 489     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_COMMAND_ACCEPTED");
 490     break;
 491   case MSGCODE_TRANSMIT_SUCCEEDED:
 492     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_TRANSMIT_SUCCEEDED");
 493     *bTransmitSucceeded = true;
 494     break;
 495   case MSGCODE_RECEIVE_FAILED:
 496     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_RECEIVE_FAILED");
 497     *bError = true;
 498     break;
 499   case MSGCODE_COMMAND_REJECTED:
 500     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_COMMAND_REJECTED");
 501     *bError = true;
 502     break;
 503   case MSGCODE_TRANSMIT_FAILED_LINE:
 504     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_LINE");
 505     *bError = true;
 506     break;
 507   case MSGCODE_TRANSMIT_FAILED_ACK:
 508     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_ACK");
 509     *bError = true;
 510     break;
 511   case MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA:
 512     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA");
 513     *bError = true;
 514     break;
 515   case MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE:
 516     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE");
 517     *bError = true;
 518     break;
 519   default:
 520     break;
 521   }
 522 }
 523
 524 void CCECProcessor::ParseVendorId(cec_logical_address device, const cec_datapacket &data)
 525 {
 526   if (data.size < 3)
 527   {
 528     m_controller->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 529     return;
 530   }
 531
 532   uint64_t iVendorId = ((uint64_t)data[0] << 3) +
 533                        ((uint64_t)data[1] << 2) +
 534                         (uint64_t)data[2];
 535
 536   m_vendorIds[(uint8_t)device]     = iVendorId;
 537   m_vendorClasses[(uint8_t)device] = data.size >= 4 ? data[3] : 0;
 538
 539   CStdString strLog;
 540   strLog.Format("device %d: vendor = %s (%lld) class = %2x", (uint8_t)device, CECVendorIdToString(m_vendorIds[(uint8_t)device]), iVendorId, m_vendorClasses[(uint8_t)device]);
 541   m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 542 }
 543
 544 void CCECProcessor::ParseCommand(cec_command &command)
 545 {
 546   CStdString dataStr;
 547   dataStr.Format(">> received frame: %1x%1x:%02x", command.initiator, command.destination, command.opcode);
 548   if (command.parameters.size > 1)
 549   {
 550     for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 551       dataStr.AppendFormat(":%02x", (unsigned int)command.parameters[iPtr]);
 552   }
 553   m_controller->AddLog(CEC_LOG_DEBUG, dataStr.c_str());
 554
 555   if (m_bMonitor)
 556     return;
 557
 558   if (command.destination == m_iLogicalAddress)
 559   {
 560     switch(command.opcode)
 561     {
 562     case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
 563       ReportPhysicalAddress();
 564       break;
 565     case CEC_OPCODE_GIVE_OSD_NAME:
 566       ReportOSDName(command.initiator);
 567       break;
 568     case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
 569       ReportVendorID(command.initiator);
 570       break;
 571     case CEC_OPCODE_DEVICE_VENDOR_ID:
 572       ParseVendorId(command.initiator, command.parameters);
 573       break;
 574     case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 575       ParseVendorId(command.initiator, command.parameters);
 576       break;
 577     case CEC_OPCODE_GIVE_DECK_STATUS:
 578       // need to support opcodes play and deck control before doing anything with this
 579       TransmitAbort(command.initiator, CEC_OPCODE_GIVE_DECK_STATUS);
 580       break;
 581     case CEC_OPCODE_MENU_REQUEST:
 582       if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_QUERY)
 583         ReportMenuState(command.initiator);
 584       break;
 585     case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 586       ReportPowerState(command.initiator);
 587       break;
 588     case CEC_OPCODE_GET_CEC_VERSION:
 589       ReportCECVersion(command.initiator);
 590       break;
 591     case CEC_OPCODE_USER_CONTROL_PRESSED:
 592       if (command.parameters.size > 0)
 593       {
 594         m_controller->AddKey();
 595
 596         if (command.parameters[0] <= CEC_USER_CONTROL_CODE_MAX)
 597         {
 598           CStdString strLog;
 599           strLog.Format("key pressed: %1x", command.parameters[0]);
 600           m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 601
 602           m_controller->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 603         }
 604       }
 605       break;
 606     case CEC_OPCODE_USER_CONTROL_RELEASE:
 607       m_controller->AddKey();
 608       break;
 609     default:
 610       m_controller->AddCommand(command);
 611       break;
 612     }
 613   }
 614   else if (command.destination == CECDEVICE_BROADCAST)
 615   {
 616     CStdString strLog;
 617     switch (command.opcode)
 618     {
 619     case CEC_OPCODE_REQUEST_ACTIVE_SOURCE:
 620       strLog.Format(">> %i requests active source", (uint8_t) command.initiator);
 621       m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 622       BroadcastActiveSource();
 623       break;
 624     case CEC_OPCODE_SET_STREAM_PATH:
 625       if (command.parameters.size >= 2)
 626       {
 627         int streamaddr = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 628         strLog.Format(">> %i requests stream path from physical address %04x", command.initiator, streamaddr);
 629         m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 630         if (streamaddr == m_iPhysicalAddress)
 631           BroadcastActiveSource();
 632       }
 633       break;
 634     case CEC_OPCODE_ROUTING_CHANGE:
 635       if (command.parameters.size == 4)
 636       {
 637         uint16_t iOldAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 638         uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 639         strLog.Format(">> %i changed physical address from %04x to %04x", command.initiator, iOldAddress, iNewAddress);
 640         m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 641
 642         m_controller->AddCommand(command);
 643       }
 644       break;
 645     default:
 646       m_controller->AddCommand(command);
 647       break;
 648     }
 649   }
 650   else
 651   {
 652     CStdString strLog;
 653     strLog.Format("ignoring frame: destination: %u != %u", command.destination, (uint8_t)m_iLogicalAddress);
 654     m_controller->AddLog(CEC_LOG_DEBUG, strLog.c_str());
 655   }
 656 }
 657
 658 const char *CCECProcessor::CECVendorIdToString(const uint64_t iVendorId)
 659 {
 660   switch (iVendorId)
 661   {
 662   case CEC_VENDOR_SAMSUNG:
 663     return "Samsung";
 664   default:
 665     return "Unknown";
 666   }
 667 }