src/lib/implementations/CECCommandHandler.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 "env.h"
  34 #include "CECCommandHandler.h"
  35
  36 #include "lib/devices/CECBusDevice.h"
  37 #include "lib/devices/CECAudioSystem.h"
  38 #include "lib/devices/CECPlaybackDevice.h"
  39 #include "lib/CECClient.h"
  40 #include "lib/CECProcessor.h"
  41 #include "lib/LibCEC.h"
  42 #include "lib/CECTypeUtils.h"
  43 #include "lib/platform/util/util.h"
  44
  45 using namespace CEC;
  46 using namespace std;
  47 using namespace PLATFORM;
  48
  49 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  50 #define ToString(p) CCECTypeUtils::ToString(p)
  51 #define REQUEST_POWER_STATUS_TIMEOUT 5000
  52
  53 CCECCommandHandler::CCECCommandHandler(CCECBusDevice *busDevice,
  54                                        int32_t iTransmitTimeout /* = CEC_DEFAULT_TRANSMIT_TIMEOUT */,
  55                                        int32_t iTransmitWait /* = CEC_DEFAULT_TRANSMIT_WAIT */,
  56                                        int8_t iTransmitRetries /* = CEC_DEFAULT_TRANSMIT_RETRIES */,
  57                                        int64_t iActiveSourcePending /* = 0 */) :
  58     m_busDevice(busDevice),
  59     m_processor(m_busDevice->GetProcessor()),
  60     m_iTransmitTimeout(iTransmitTimeout),
  61     m_iTransmitWait(iTransmitWait),
  62     m_iTransmitRetries(iTransmitRetries),
  63     m_bHandlerInited(false),
  64     m_bOPTSendDeckStatusUpdateOnActiveSource(false),
  65     m_vendorId(CEC_VENDOR_UNKNOWN),
  66     m_iActiveSourcePending(iActiveSourcePending),
  67     m_iPowerStatusRequested(0)
  68 {
  69 }
  70
  71 bool CCECCommandHandler::HandleCommand(const cec_command &command)
  72 {
  73   if (command.opcode_set == 0)
  74     return HandlePoll(command);
  75
  76   int iHandled(CEC_ABORT_REASON_UNRECOGNIZED_OPCODE);
  77
  78   LIB_CEC->AddCommand(command);
  79
  80   switch(command.opcode)
  81   {
  82   case CEC_OPCODE_REPORT_POWER_STATUS:
  83     iHandled = HandleReportPowerStatus(command);
  84     break;
  85   case CEC_OPCODE_CEC_VERSION:
  86     iHandled = HandleDeviceCecVersion(command);
  87     break;
  88   case CEC_OPCODE_SET_MENU_LANGUAGE:
  89     iHandled = HandleSetMenuLanguage(command);
  90     break;
  91   case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
  92     iHandled = HandleGivePhysicalAddress(command);
  93     break;
  94   case CEC_OPCODE_GET_MENU_LANGUAGE:
  95     iHandled = HandleGiveMenuLanguage(command);
  96     break;
  97   case CEC_OPCODE_GIVE_OSD_NAME:
  98     iHandled = HandleGiveOSDName(command);
  99     break;
 100   case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
 101     iHandled = HandleGiveDeviceVendorId(command);
 102     break;
 103   case CEC_OPCODE_DEVICE_VENDOR_ID:
 104     iHandled = HandleDeviceVendorId(command);
 105     break;
 106   case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 107     iHandled = HandleDeviceVendorCommandWithId(command);
 108     break;
 109   case CEC_OPCODE_GIVE_DECK_STATUS:
 110     iHandled = HandleGiveDeckStatus(command);
 111     break;
 112   case CEC_OPCODE_DECK_CONTROL:
 113     iHandled = HandleDeckControl(command);
 114     break;
 115   case CEC_OPCODE_MENU_REQUEST:
 116     iHandled = HandleMenuRequest(command);
 117     break;
 118   case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 119     iHandled = HandleGiveDevicePowerStatus(command);
 120     break;
 121   case CEC_OPCODE_GET_CEC_VERSION:
 122     iHandled = HandleGetCecVersion(command);
 123     break;
 124   case CEC_OPCODE_USER_CONTROL_PRESSED:
 125     iHandled = HandleUserControlPressed(command);
 126     break;
 127   case CEC_OPCODE_USER_CONTROL_RELEASE:
 128     iHandled = HandleUserControlRelease(command);
 129     break;
 130   case CEC_OPCODE_GIVE_AUDIO_STATUS:
 131     iHandled = HandleGiveAudioStatus(command);
 132     break;
 133   case CEC_OPCODE_GIVE_SYSTEM_AUDIO_MODE_STATUS:
 134     iHandled = HandleGiveSystemAudioModeStatus(command);
 135     break;
 136   case CEC_OPCODE_SYSTEM_AUDIO_MODE_REQUEST:
 137     iHandled = HandleSystemAudioModeRequest(command);
 138     break;
 139   case CEC_OPCODE_REPORT_AUDIO_STATUS:
 140     iHandled = HandleReportAudioStatus(command);
 141     break;
 142   case CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS:
 143     iHandled = HandleSystemAudioModeStatus(command);
 144     break;
 145   case CEC_OPCODE_SET_SYSTEM_AUDIO_MODE:
 146     iHandled = HandleSetSystemAudioMode(command);
 147     break;
 148   case CEC_OPCODE_REQUEST_ACTIVE_SOURCE:
 149     iHandled = HandleRequestActiveSource(command);
 150     break;
 151   case CEC_OPCODE_SET_STREAM_PATH:
 152     iHandled = HandleSetStreamPath(command);
 153     break;
 154   case CEC_OPCODE_ROUTING_CHANGE:
 155     iHandled = HandleRoutingChange(command);
 156     break;
 157   case CEC_OPCODE_ROUTING_INFORMATION:
 158     iHandled = HandleRoutingInformation(command);
 159     break;
 160   case CEC_OPCODE_STANDBY:
 161     iHandled = HandleStandby(command);
 162     break;
 163   case CEC_OPCODE_ACTIVE_SOURCE:
 164     iHandled = HandleActiveSource(command);
 165     break;
 166   case CEC_OPCODE_REPORT_PHYSICAL_ADDRESS:
 167     iHandled = HandleReportPhysicalAddress(command);
 168     break;
 169   case CEC_OPCODE_SET_OSD_NAME:
 170     iHandled = HandleSetOSDName(command);
 171     break;
 172   case CEC_OPCODE_IMAGE_VIEW_ON:
 173     iHandled = HandleImageViewOn(command);
 174     break;
 175   case CEC_OPCODE_TEXT_VIEW_ON:
 176     iHandled = HandleTextViewOn(command);
 177     break;
 178   case CEC_OPCODE_FEATURE_ABORT:
 179     iHandled = HandleFeatureAbort(command);
 180     break;
 181   case CEC_OPCODE_VENDOR_COMMAND:
 182     iHandled = HandleVendorCommand(command);
 183     break;
 184   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN:
 185     iHandled = HandleVendorRemoteButtonDown(command);
 186     break;
 187   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP:
 188     iHandled = HandleVendorRemoteButtonUp(command);
 189     break;
 190   case CEC_OPCODE_PLAY:
 191     // libCEC (currently) doesn't need to do anything with this, since player applications handle it
 192     // but it should not respond with a feature abort
 193     iHandled = COMMAND_HANDLED;
 194     break;
 195   default:
 196     break;
 197   }
 198
 199   if (iHandled == COMMAND_HANDLED)
 200     m_busDevice->SignalOpcode((command.opcode == CEC_OPCODE_FEATURE_ABORT && command.parameters.size > 0) ? (cec_opcode)command.parameters[0] : command.opcode);
 201   else
 202     UnhandledCommand(command, (cec_abort_reason)iHandled);
 203
 204   return iHandled == COMMAND_HANDLED;
 205 }
 206
 207 int CCECCommandHandler::HandleActiveSource(const cec_command &command)
 208 {
 209   if (command.parameters.size == 2)
 210   {
 211     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 212     m_processor->GetDevices()->SetActiveSource(iAddress);
 213     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iAddress);
 214     if (device)
 215       device->MarkAsActiveSource();
 216
 217     m_processor->GetDevices()->SignalAll(command.opcode);
 218     return COMMAND_HANDLED;
 219   }
 220
 221   return CEC_ABORT_REASON_INVALID_OPERAND;
 222 }
 223
 224 int CCECCommandHandler::HandleDeckControl(const cec_command &command)
 225 {
 226   CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 227   if (device && command.parameters.size > 0)
 228   {
 229     device->SetDeckControlMode((cec_deck_control_mode) command.parameters[0]);
 230     return COMMAND_HANDLED;
 231   }
 232
 233   return CEC_ABORT_REASON_INVALID_OPERAND;
 234 }
 235
 236 int CCECCommandHandler::HandleDeviceCecVersion(const cec_command &command)
 237 {
 238   if (command.parameters.size == 1)
 239   {
 240     CCECBusDevice *device = GetDevice(command.initiator);
 241     if (device)
 242       device->SetCecVersion((cec_version) command.parameters[0]);
 243
 244     return COMMAND_HANDLED;
 245   }
 246
 247   return CEC_ABORT_REASON_INVALID_OPERAND;
 248 }
 249
 250 int CCECCommandHandler::HandleDeviceVendorCommandWithId(const cec_command & UNUSED(command))
 251 {
 252   return CEC_ABORT_REASON_INVALID_OPERAND;
 253 }
 254
 255 int CCECCommandHandler::HandleDeviceVendorId(const cec_command &command)
 256 {
 257   SetVendorId(command);
 258   return COMMAND_HANDLED;
 259 }
 260
 261 int CCECCommandHandler::HandleFeatureAbort(const cec_command &command)
 262 {
 263   if (command.parameters.size == 2 &&
 264         (command.parameters[1] == CEC_ABORT_REASON_UNRECOGNIZED_OPCODE ||
 265          command.parameters[1] == CEC_ABORT_REASON_REFUSED))
 266     m_processor->GetDevice(command.initiator)->SetUnsupportedFeature((cec_opcode)command.parameters[0]);
 267   return COMMAND_HANDLED;
 268 }
 269
 270 int CCECCommandHandler::HandleGetCecVersion(const cec_command &command)
 271 {
 272   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 273   {
 274     CCECBusDevice *device = GetDevice(command.destination);
 275     if (device && device->TransmitCECVersion(command.initiator, true))
 276       return COMMAND_HANDLED;
 277     return CEC_ABORT_REASON_INVALID_OPERAND;
 278   }
 279
 280   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 281 }
 282
 283 int CCECCommandHandler::HandleGiveAudioStatus(const cec_command &command)
 284 {
 285   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 286   {
 287     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 288     if (device && device->TransmitAudioStatus(command.initiator, true))
 289       return COMMAND_HANDLED;
 290     return CEC_ABORT_REASON_INVALID_OPERAND;
 291   }
 292
 293   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 294 }
 295
 296 int CCECCommandHandler::HandleGiveDeckStatus(const cec_command &command)
 297 {
 298   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 299   {
 300     CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 301     if (device && device->TransmitDeckStatus(command.initiator, true))
 302       return COMMAND_HANDLED;
 303     return CEC_ABORT_REASON_INVALID_OPERAND;
 304   }
 305
 306   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 307 }
 308
 309 int CCECCommandHandler::HandleGiveDevicePowerStatus(const cec_command &command)
 310 {
 311   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 312   {
 313     CCECBusDevice *device = GetDevice(command.destination);
 314     if (device && device->TransmitPowerState(command.initiator, true))
 315       return COMMAND_HANDLED;
 316     return CEC_ABORT_REASON_INVALID_OPERAND;
 317   }
 318
 319   return CEC_ABORT_REASON_INVALID_OPERAND;
 320 }
 321
 322 int CCECCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 323 {
 324   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 325   {
 326     CCECBusDevice *device = GetDevice(command.destination);
 327     if (device && device->TransmitVendorID(command.initiator, true, true))
 328       return COMMAND_HANDLED;
 329   }
 330
 331   return CEC_ABORT_REASON_INVALID_OPERAND;
 332 }
 333
 334 int CCECCommandHandler::HandleGiveOSDName(const cec_command &command)
 335 {
 336   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 337   {
 338     CCECBusDevice *device = GetDevice(command.destination);
 339     if (device && device->TransmitOSDName(command.initiator, true))
 340       return COMMAND_HANDLED;
 341   }
 342
 343   return CEC_ABORT_REASON_INVALID_OPERAND;
 344 }
 345
 346 int CCECCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 347 {
 348   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 349   {
 350     CCECBusDevice *device = GetDevice(command.destination);
 351     if (device && device->TransmitPhysicalAddress(true))
 352       return COMMAND_HANDLED;
 353     return CEC_ABORT_REASON_INVALID_OPERAND;
 354   }
 355
 356   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 357 }
 358
 359 int CCECCommandHandler::HandleGiveMenuLanguage(const cec_command &command)
 360 {
 361   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 362   {
 363     CCECBusDevice *device = GetDevice(command.destination);
 364     if (device && device->TransmitSetMenuLanguage(command.initiator, true))
 365       return COMMAND_HANDLED;
 366     return CEC_ABORT_REASON_INVALID_OPERAND;
 367   }
 368
 369   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 370 }
 371
 372 int CCECCommandHandler::HandleGiveSystemAudioModeStatus(const cec_command &command)
 373 {
 374   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 375   {
 376     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 377     if (device && device->TransmitSystemAudioModeStatus(command.initiator, true))
 378       return COMMAND_HANDLED;
 379     return CEC_ABORT_REASON_INVALID_OPERAND;
 380   }
 381
 382   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 383 }
 384
 385 int CCECCommandHandler::HandleImageViewOn(const cec_command &command)
 386 {
 387   CCECBusDevice *device = GetDevice(command.destination);
 388   if (device && device->GetCurrentStatus() == CEC_DEVICE_STATUS_PRESENT)
 389   {
 390     if (device->GetCurrentPowerStatus() == CEC_POWER_STATUS_STANDBY ||
 391         device->GetCurrentPowerStatus() == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY)
 392       device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 393     CCECBusDevice* tv = GetDevice(CECDEVICE_TV);
 394     if (tv)
 395       tv->OnImageViewOnSent(false);
 396   }
 397   return COMMAND_HANDLED;
 398 }
 399
 400 int CCECCommandHandler::HandleMenuRequest(const cec_command &command)
 401 {
 402   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 403   {
 404     CCECBusDevice *device = GetDevice(command.destination);
 405     if (device)
 406     {
 407       CCECClient *client = device->GetClient();
 408       if (client)
 409       {
 410         if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_ACTIVATE)
 411         {
 412           if (client->MenuStateChanged(CEC_MENU_STATE_ACTIVATED) == 1)
 413             device->SetMenuState(CEC_MENU_STATE_ACTIVATED);
 414         }
 415         else if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_DEACTIVATE)
 416         {
 417           if (client->MenuStateChanged(CEC_MENU_STATE_DEACTIVATED) == 1)
 418             device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 419         }
 420       }
 421       if (device->TransmitMenuState(command.initiator, true))
 422         return COMMAND_HANDLED;
 423     }
 424     return CEC_ABORT_REASON_INVALID_OPERAND;
 425   }
 426
 427   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 428 }
 429
 430 bool CCECCommandHandler::HandlePoll(const cec_command &command)
 431 {
 432   m_busDevice->HandlePoll(command.destination);
 433   return true;
 434 }
 435
 436 int CCECCommandHandler::HandleReportAudioStatus(const cec_command &command)
 437 {
 438   if (command.parameters.size == 1)
 439   {
 440     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 441     if (device)
 442     {
 443       device->SetAudioStatus(command.parameters[0]);
 444       return COMMAND_HANDLED;
 445     }
 446   }
 447   return CEC_ABORT_REASON_INVALID_OPERAND;
 448 }
 449
 450 int CCECCommandHandler::HandleReportPhysicalAddress(const cec_command &command)
 451 {
 452   if (command.parameters.size == 3)
 453   {
 454     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 455     SetPhysicalAddress(command.initiator, iNewAddress);
 456     return COMMAND_HANDLED;
 457   }
 458   return CEC_ABORT_REASON_INVALID_OPERAND;
 459 }
 460
 461 int CCECCommandHandler::HandleReportPowerStatus(const cec_command &command)
 462 {
 463   if (command.parameters.size == 1)
 464   {
 465     CCECBusDevice *device = GetDevice(command.initiator);
 466     if (device)
 467     {
 468       device->SetPowerStatus((cec_power_status) command.parameters[0]);
 469       return COMMAND_HANDLED;
 470     }
 471   }
 472   return CEC_ABORT_REASON_INVALID_OPERAND;
 473 }
 474
 475 int CCECCommandHandler::HandleRequestActiveSource(const cec_command &command)
 476 {
 477   if (m_processor->CECInitialised())
 478   {
 479     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %i requests active source", (uint8_t) command.initiator);
 480     m_processor->GetDevice(command.initiator)->SetPowerStatus(CEC_POWER_STATUS_ON);
 481
 482     vector<CCECBusDevice *> devices;
 483     for (size_t iDevicePtr = 0; iDevicePtr < GetMyDevices(devices); iDevicePtr++)
 484       devices[iDevicePtr]->TransmitActiveSource(true);
 485   }
 486
 487   return COMMAND_HANDLED;
 488 }
 489
 490 int CCECCommandHandler::HandleRoutingChange(const cec_command &command)
 491 {
 492   if (command.parameters.size == 4)
 493   {
 494     CCECBusDevice *device = GetDevice(command.initiator);
 495     if (device)
 496     {
 497       uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 498       device->SetActiveRoute(iNewAddress);
 499       return COMMAND_HANDLED;
 500     }
 501   }
 502
 503   return CEC_ABORT_REASON_INVALID_OPERAND;
 504 }
 505
 506 int CCECCommandHandler::HandleRoutingInformation(const cec_command &command)
 507 {
 508   if (command.parameters.size == 2)
 509   {
 510     CCECBusDevice *device = GetDevice(command.initiator);
 511     if (device)
 512     {
 513       uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 514       device->SetActiveRoute(iNewAddress);
 515       return COMMAND_HANDLED;
 516     }
 517   }
 518
 519   return CEC_ABORT_REASON_INVALID_OPERAND;
 520 }
 521
 522 int CCECCommandHandler::HandleSetMenuLanguage(const cec_command &command)
 523 {
 524   if (command.parameters.size == 3)
 525   {
 526     CCECBusDevice *device = GetDevice(command.initiator);
 527     if (device)
 528     {
 529       cec_menu_language language;
 530       language.device = command.initiator;
 531       for (uint8_t iPtr = 0; iPtr < 4; iPtr++)
 532         language.language[iPtr] = command.parameters[iPtr];
 533       language.language[3] = 0;
 534       device->SetMenuLanguage(language);
 535       return COMMAND_HANDLED;
 536     }
 537   }
 538
 539   return CEC_ABORT_REASON_INVALID_OPERAND;
 540 }
 541
 542 int CCECCommandHandler::HandleSetOSDName(const cec_command &command)
 543 {
 544   if (command.parameters.size > 0)
 545   {
 546     CCECBusDevice *device = GetDevice(command.initiator);
 547     if (device)
 548     {
 549       char buf[1024];
 550       for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 551         buf[iPtr] = (char)command.parameters[iPtr];
 552       buf[command.parameters.size] = 0;
 553
 554       CStdString strName(buf);
 555       device->SetOSDName(strName);
 556
 557       return COMMAND_HANDLED;
 558     }
 559   }
 560
 561   return CEC_ABORT_REASON_INVALID_OPERAND;
 562 }
 563
 564 int CCECCommandHandler::HandleSetStreamPath(const cec_command &command)
 565 {
 566   if (!m_processor->CECInitialised())
 567     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 568
 569   if (command.parameters.size >= 2)
 570   {
 571     uint16_t iStreamAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 572     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %s (%x) sets stream path to physical address %04x", ToString(command.initiator), command.initiator, iStreamAddress);
 573
 574     /* one of the device handled by libCEC has been made active */
 575     CCECBusDevice *device = GetDeviceByPhysicalAddress(iStreamAddress);
 576     if (device && device->IsHandledByLibCEC())
 577     {
 578       device->ActivateSource();
 579       return COMMAND_HANDLED;
 580     }
 581   }
 582
 583   return CEC_ABORT_REASON_INVALID_OPERAND;
 584 }
 585
 586 int CCECCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 587 {
 588   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 589   {
 590     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 591     if (device)
 592     {
 593       if (command.parameters.size >= 2)
 594       {
 595         device->SetPowerStatus(CEC_POWER_STATUS_ON);
 596         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_ON);
 597         uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 598         CCECBusDevice *newActiveDevice = GetDeviceByPhysicalAddress(iNewAddress);
 599         if (newActiveDevice)
 600           newActiveDevice->MarkAsActiveSource();
 601         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 602           return COMMAND_HANDLED;
 603       }
 604       else
 605       {
 606         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_OFF);
 607         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 608           return COMMAND_HANDLED;
 609       }
 610     }
 611   }
 612
 613   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 614 }
 615
 616 int CCECCommandHandler::HandleStandby(const cec_command &command)
 617 {
 618   CCECBusDevice *device = GetDevice(command.initiator);
 619   if (device)
 620     device->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 621
 622   return COMMAND_HANDLED;
 623 }
 624
 625 int CCECCommandHandler::HandleSystemAudioModeStatus(const cec_command &command)
 626 {
 627   if (command.parameters.size == 1)
 628   {
 629     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 630     if (device)
 631     {
 632       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 633       return COMMAND_HANDLED;
 634     }
 635   }
 636
 637   return CEC_ABORT_REASON_INVALID_OPERAND;
 638 }
 639
 640 int CCECCommandHandler::HandleSetSystemAudioMode(const cec_command &command)
 641 {
 642   if (command.parameters.size == 1)
 643   {
 644     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 645     if (device)
 646     {
 647       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 648       return COMMAND_HANDLED;
 649     }
 650   }
 651
 652   return CEC_ABORT_REASON_INVALID_OPERAND;
 653 }
 654
 655 int CCECCommandHandler::HandleTextViewOn(const cec_command &command)
 656 {
 657   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 658   return COMMAND_HANDLED;
 659 }
 660
 661 int CCECCommandHandler::HandleUserControlPressed(const cec_command &command)
 662 {
 663   if (!m_processor->CECInitialised() ||
 664       !m_processor->IsHandledByLibCEC(command.destination))
 665     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 666
 667   if (command.parameters.size == 0)
 668     return CEC_ABORT_REASON_INVALID_OPERAND;
 669
 670   CCECBusDevice *device = GetDevice(command.destination);
 671   if (!device)
 672     return CEC_ABORT_REASON_INVALID_OPERAND;
 673
 674   CCECClient *client = device->GetClient();
 675   if (client)
 676     client->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 677
 678   if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 679       command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION||
 680       command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_TOGGLE_FUNCTION)
 681   {
 682     bool bPowerOn(true);
 683
 684     // CEC_USER_CONTROL_CODE_POWER and CEC_USER_CONTROL_CODE_POWER_TOGGLE_FUNCTION operate as a toggle
 685     // assume CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION does not
 686     if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 687         command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_TOGGLE_FUNCTION)
 688     {
 689       cec_power_status status = device->GetCurrentPowerStatus();
 690       bPowerOn = !(status == CEC_POWER_STATUS_ON || status == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 691     }
 692
 693     if (bPowerOn)
 694     {
 695       device->ActivateSource();
 696     }
 697     else
 698     {
 699       device->MarkAsInactiveSource();
 700       device->TransmitInactiveSource();
 701       device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 702     }
 703   }
 704   else if (command.parameters[0] != CEC_USER_CONTROL_CODE_POWER_OFF_FUNCTION)
 705   {
 706     // we're not marked as active source, but the tv sends keypresses to us, so assume it forgot to activate us
 707     if (!device->IsActiveSource() && command.initiator == CECDEVICE_TV)
 708       device->MarkAsActiveSource();
 709   }
 710
 711   return COMMAND_HANDLED;
 712 }
 713
 714 int CCECCommandHandler::HandleUserControlRelease(const cec_command &command)
 715 {
 716   if (!m_processor->CECInitialised() ||
 717       !m_processor->IsHandledByLibCEC(command.destination))
 718     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 719
 720   CCECClient *client = m_processor->GetClient(command.destination);
 721   if (client)
 722     client->AddKey();
 723
 724   return COMMAND_HANDLED;
 725 }
 726
 727 int CCECCommandHandler::HandleVendorCommand(const cec_command & UNUSED(command))
 728 {
 729   return CEC_ABORT_REASON_INVALID_OPERAND;
 730 }
 731
 732 int CCECCommandHandler::HandleVendorRemoteButtonDown(const cec_command& command)
 733 {
 734   if (command.parameters.size == 0)
 735     return CEC_ABORT_REASON_INVALID_OPERAND;
 736
 737   LIB_CEC->AddLog(CEC_LOG_NOTICE, "unhandled vendor remote button received with keycode %x", command.parameters[0]);
 738   return COMMAND_HANDLED;
 739 }
 740
 741 void CCECCommandHandler::UnhandledCommand(const cec_command &command, const cec_abort_reason reason)
 742 {
 743   if (m_processor->IsHandledByLibCEC(command.destination))
 744   {
 745     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending abort with opcode %02x and reason '%s' to %s", command.opcode, ToString(reason), ToString(command.initiator));
 746     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, reason);
 747   }
 748 }
 749
 750 size_t CCECCommandHandler::GetMyDevices(vector<CCECBusDevice *> &devices) const
 751 {
 752   size_t iReturn(0);
 753
 754   cec_logical_addresses addresses = m_processor->GetLogicalAddresses();
 755   for (uint8_t iPtr = CECDEVICE_TV; iPtr < CECDEVICE_BROADCAST; iPtr++)
 756   {
 757     if (addresses[iPtr])
 758     {
 759       devices.push_back(GetDevice((cec_logical_address) iPtr));
 760       ++iReturn;
 761     }
 762   }
 763
 764   return iReturn;
 765 }
 766
 767 CCECBusDevice *CCECCommandHandler::GetDevice(cec_logical_address iLogicalAddress) const
 768 {
 769   return m_processor->GetDevice(iLogicalAddress);
 770 }
 771
 772 CCECBusDevice *CCECCommandHandler::GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const
 773 {
 774   return m_processor->GetDeviceByPhysicalAddress(iPhysicalAddress);
 775 }
 776
 777 bool CCECCommandHandler::SetVendorId(const cec_command &command)
 778 {
 779   bool bChanged(false);
 780   if (command.parameters.size < 3)
 781   {
 782     LIB_CEC->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 783     return bChanged;
 784   }
 785
 786   uint64_t iVendorId = ((uint64_t)command.parameters[0] << 16) +
 787                        ((uint64_t)command.parameters[1] << 8) +
 788                         (uint64_t)command.parameters[2];
 789
 790   CCECBusDevice *device = GetDevice((cec_logical_address) command.initiator);
 791   if (device)
 792     bChanged = device->SetVendorId(iVendorId);
 793   return bChanged;
 794 }
 795
 796 void CCECCommandHandler::SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress)
 797 {
 798   if (!m_processor->IsHandledByLibCEC(iAddress))
 799   {
 800     CCECBusDevice *otherDevice = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 801     CCECClient *client = otherDevice ? otherDevice->GetClient() : NULL;
 802
 803     CCECBusDevice *device = m_processor->GetDevice(iAddress);
 804     if (device)
 805       device->SetPhysicalAddress(iNewAddress);
 806     else
 807     {
 808       LIB_CEC->AddLog(CEC_LOG_DEBUG, "device with logical address %X not found", iAddress);
 809     }
 810
 811     /* another device reported the same physical address as ours */
 812     if (client)
 813       client->ResetPhysicalAddress();
 814   }
 815   else
 816   {
 817     LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignore physical address report for device %s (%X) because it's marked as handled by libCEC", ToString(iAddress), iAddress);
 818   }
 819 }
 820
 821 bool CCECCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 822 {
 823   if (iDestination == CECDEVICE_TV)
 824     return TransmitImageViewOn(iInitiator, iDestination);
 825
 826   return TransmitKeypress(iInitiator, iDestination, CEC_USER_CONTROL_CODE_POWER) &&
 827     TransmitKeyRelease(iInitiator, iDestination);
 828 }
 829
 830 bool CCECCommandHandler::TransmitImageViewOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 831 {
 832   cec_command command;
 833   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_IMAGE_VIEW_ON);
 834
 835   if (Transmit(command, false, false))
 836   {
 837     CCECBusDevice* dest = m_processor->GetDevice(iDestination);
 838     if (dest && dest->GetCurrentPowerStatus() != CEC_POWER_STATUS_ON)
 839       dest->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 840     return true;
 841   }
 842   return false;
 843 }
 844
 845 bool CCECCommandHandler::TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 846 {
 847   cec_command command;
 848   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_STANDBY);
 849
 850   return Transmit(command, false, false);
 851 }
 852
 853 bool CCECCommandHandler::TransmitRequestActiveSource(const cec_logical_address iInitiator, bool bWaitForResponse /* = true */)
 854 {
 855   cec_command command;
 856   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REQUEST_ACTIVE_SOURCE);
 857
 858   return Transmit(command, !bWaitForResponse, false);
 859 }
 860
 861 bool CCECCommandHandler::TransmitRequestCecVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 862 {
 863   cec_command command;
 864   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_CEC_VERSION);
 865
 866   return Transmit(command, !bWaitForResponse, false);
 867 }
 868
 869 bool CCECCommandHandler::TransmitRequestMenuLanguage(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 870 {
 871   cec_command command;
 872   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_MENU_LANGUAGE);
 873
 874   return Transmit(command, !bWaitForResponse, false);
 875 }
 876
 877 bool CCECCommandHandler::TransmitRequestOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 878 {
 879   cec_command command;
 880   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_OSD_NAME);
 881
 882   return Transmit(command, !bWaitForResponse, false);
 883 }
 884
 885 bool CCECCommandHandler::TransmitRequestPhysicalAddress(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 886 {
 887   cec_command command;
 888   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_PHYSICAL_ADDRESS);
 889
 890   return Transmit(command, !bWaitForResponse, false);
 891 }
 892
 893 bool CCECCommandHandler::TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 894 {
 895   if (iDestination == CECDEVICE_TV)
 896   {
 897     int64_t now(GetTimeMs());
 898     if (now - m_iPowerStatusRequested < REQUEST_POWER_STATUS_TIMEOUT)
 899       return true;
 900     m_iPowerStatusRequested = now;
 901   }
 902
 903   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting power status of '%s' (%X)", m_busDevice->GetLogicalAddressName(), iDestination);
 904
 905   cec_command command;
 906   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_POWER_STATUS);
 907
 908   return Transmit(command, !bWaitForResponse, false);
 909 }
 910
 911 bool CCECCommandHandler::TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 912 {
 913   cec_command command;
 914   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 915
 916   return Transmit(command, !bWaitForResponse, false);
 917 }
 918
 919 bool CCECCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, bool bIsReply)
 920 {
 921   cec_command command;
 922   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 923   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 924   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 925
 926   return Transmit(command, false, bIsReply);
 927 }
 928
 929 bool CCECCommandHandler::TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion, bool bIsReply)
 930 {
 931   cec_command command;
 932   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_CEC_VERSION);
 933   command.parameters.PushBack((uint8_t)cecVersion);
 934
 935   return Transmit(command, false, bIsReply);
 936 }
 937
 938 bool CCECCommandHandler::TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 939 {
 940   cec_command command;
 941   cec_command::Format(command, iInitiator, CECDEVICE_TV, CEC_OPCODE_INACTIVE_SOURCE);
 942   command.parameters.PushBack((iPhysicalAddress >> 8) & 0xFF);
 943   command.parameters.PushBack(iPhysicalAddress & 0xFF);
 944
 945   return Transmit(command, false, false);
 946 }
 947
 948 bool CCECCommandHandler::TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState, bool bIsReply)
 949 {
 950   cec_command command;
 951   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_MENU_STATUS);
 952   command.parameters.PushBack((uint8_t)menuState);
 953
 954   return Transmit(command, false, bIsReply);
 955 }
 956
 957 bool CCECCommandHandler::TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, std::string strDeviceName, bool bIsReply)
 958 {
 959   cec_command command;
 960   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_NAME);
 961   for (size_t iPtr = 0; iPtr < strDeviceName.length(); iPtr++)
 962     command.parameters.PushBack(strDeviceName.at(iPtr));
 963
 964   return Transmit(command, false, bIsReply);
 965 }
 966
 967 bool CCECCommandHandler::TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage, bool bIsReply)
 968 {
 969   cec_command command;
 970   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_STRING);
 971   command.parameters.PushBack((uint8_t)duration);
 972
 973   size_t iLen = strlen(strMessage);
 974   if (iLen > 13) iLen = 13;
 975
 976   for (size_t iPtr = 0; iPtr < iLen; iPtr++)
 977     command.parameters.PushBack(strMessage[iPtr]);
 978
 979   return Transmit(command, false, bIsReply);
 980 }
 981
 982 bool CCECCommandHandler::TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type, bool bIsReply)
 983 {
 984   cec_command command;
 985   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 986   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 987   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 988   command.parameters.PushBack((uint8_t) (type));
 989
 990   return Transmit(command, false, bIsReply);
 991 }
 992
 993 bool CCECCommandHandler::TransmitSetMenuLanguage(const cec_logical_address iInitiator, const char lang[3], bool bIsReply)
 994 {
 995   cec_command command;
 996   command.Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_SET_MENU_LANGUAGE);
 997   command.parameters.PushBack((uint8_t) lang[0]);
 998   command.parameters.PushBack((uint8_t) lang[1]);
 999   command.parameters.PushBack((uint8_t) lang[2]);
1000
1001   return Transmit(command, false, bIsReply);
1002 }
1003
1004 bool CCECCommandHandler::TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bIsReply)
1005 {
1006   cec_command command;
1007   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_NONE);
1008
1009   return Transmit(command, false, bIsReply);
1010 }
1011
1012 bool CCECCommandHandler::TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state, bool bIsReply)
1013 {
1014   cec_command command;
1015   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_POWER_STATUS);
1016   command.parameters.PushBack((uint8_t) state);
1017
1018   return Transmit(command, false, bIsReply);
1019 }
1020
1021 bool CCECCommandHandler::TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId, bool bIsReply)
1022 {
1023   cec_command command;
1024   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_DEVICE_VENDOR_ID);
1025
1026   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 16) & 0xFF));
1027   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 8) & 0xFF));
1028   command.parameters.PushBack((uint8_t) ((uint64_t)iVendorId & 0xFF));
1029
1030   return Transmit(command, false, bIsReply);
1031 }
1032
1033 bool CCECCommandHandler::TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state, bool bIsReply)
1034 {
1035   cec_command command;
1036   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_AUDIO_STATUS);
1037   command.parameters.PushBack(state);
1038
1039   return Transmit(command, false, bIsReply);
1040 }
1041
1042 bool CCECCommandHandler::TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1043 {
1044   cec_command command;
1045   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_SYSTEM_AUDIO_MODE);
1046   command.parameters.PushBack((uint8_t)state);
1047
1048   return Transmit(command, false, bIsReply);
1049 }
1050
1051 bool CCECCommandHandler::TransmitSetStreamPath(uint16_t iStreamPath, bool bIsReply)
1052 {
1053   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
1054   {
1055     LIB_CEC->AddLog(CEC_LOG_ERROR, "only the TV is allowed to send CEC_OPCODE_SET_STREAM_PATH");
1056     return false;
1057   }
1058   cec_command command;
1059   cec_command::Format(command, m_busDevice->GetLogicalAddress(), CECDEVICE_BROADCAST, CEC_OPCODE_SET_STREAM_PATH);
1060   command.parameters.PushBack((uint8_t) ((iStreamPath >> 8) & 0xFF));
1061   command.parameters.PushBack((uint8_t) (iStreamPath        & 0xFF));
1062
1063   return Transmit(command, false, bIsReply);
1064 }
1065
1066 bool CCECCommandHandler::TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1067 {
1068   cec_command command;
1069   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
1070   command.parameters.PushBack((uint8_t)state);
1071
1072   return Transmit(command, false, bIsReply);
1073 }
1074
1075 bool CCECCommandHandler::TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state, bool bIsReply)
1076 {
1077   cec_command command;
1078   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_DECK_STATUS);
1079   command.PushBack((uint8_t)state);
1080
1081   return Transmit(command, false, bIsReply);
1082 }
1083
1084 bool CCECCommandHandler::TransmitKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
1085 {
1086   cec_command command;
1087   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_PRESSED);
1088   command.parameters.PushBack((uint8_t)key);
1089
1090   return Transmit(command, !bWait, false);
1091 }
1092
1093 bool CCECCommandHandler::TransmitKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWait /* = true */)
1094 {
1095   cec_command command;
1096   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_RELEASE);
1097
1098   return Transmit(command, !bWait, false);
1099 }
1100
1101 bool CCECCommandHandler::Transmit(cec_command &command, bool bSuppressWait, bool bIsReply)
1102 {
1103   bool bReturn(false);
1104   cec_opcode expectedResponse(cec_command::GetResponseOpcode(command.opcode));
1105   bool bExpectResponse(expectedResponse != CEC_OPCODE_NONE && !bSuppressWait);
1106   command.transmit_timeout = m_iTransmitTimeout;
1107
1108   if (command.initiator == CECDEVICE_UNKNOWN)
1109   {
1110     LIB_CEC->AddLog(CEC_LOG_ERROR, "not transmitting a command without a valid initiator");
1111     return bReturn;
1112   }
1113
1114   // check whether the destination is not marked as not present or handled by libCEC
1115   if (command.destination != CECDEVICE_BROADCAST && command.opcode_set)
1116   {
1117     CCECBusDevice* destinationDevice = m_processor->GetDevice(command.destination);
1118     cec_bus_device_status status = destinationDevice ? destinationDevice->GetStatus() : CEC_DEVICE_STATUS_NOT_PRESENT;
1119     if (status == CEC_DEVICE_STATUS_NOT_PRESENT)
1120     {
1121       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as not present", ToString(command.opcode),ToString(command.destination));
1122       return bReturn;
1123     }
1124     else if (status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
1125     {
1126       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as handled by libCEC", ToString(command.opcode),ToString(command.destination));
1127       return bReturn;
1128     }
1129   }
1130
1131   {
1132     uint8_t iTries(0), iMaxTries(!command.opcode_set ? 1 : m_iTransmitRetries + 1);
1133     while (!bReturn && ++iTries <= iMaxTries && !m_busDevice->IsUnsupportedFeature(command.opcode))
1134     {
1135       if ((bReturn = m_processor->Transmit(command, bIsReply)) == true)
1136       {
1137 #ifdef CEC_DEBUGGING
1138         LIB_CEC->AddLog(CEC_LOG_DEBUG, "command transmitted");
1139 #endif
1140         if (bExpectResponse)
1141         {
1142           bReturn = m_busDevice->WaitForOpcode(expectedResponse);
1143           LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? "expected response received (%X: %s)" : "expected response not received (%X: %s)", (int)expectedResponse, ToString(expectedResponse));
1144         }
1145       }
1146     }
1147   }
1148
1149   return bReturn;
1150 }
1151
1152 bool CCECCommandHandler::ActivateSource(bool bTransmitDelayedCommandsOnly /* = false */)
1153 {
1154   if (m_busDevice->IsActiveSource() &&
1155       m_busDevice->IsHandledByLibCEC())
1156   {
1157     {
1158       CLockObject lock(m_mutex);
1159       // check if we need to send a delayed source switch
1160       if (bTransmitDelayedCommandsOnly)
1161       {
1162         if (m_iActiveSourcePending == 0 || GetTimeMs() < m_iActiveSourcePending)
1163           return false;
1164
1165 #ifdef CEC_DEBUGGING
1166         LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
1167 #endif
1168       }
1169     }
1170
1171     // update the power state and menu state
1172     if (!bTransmitDelayedCommandsOnly)
1173     {
1174       m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
1175       m_busDevice->SetMenuState(CEC_MENU_STATE_ACTIVATED);
1176     }
1177
1178     // vendor specific hook
1179     VendorPreActivateSourceHook();
1180
1181     // power on the TV
1182     CCECBusDevice* tv = m_processor->GetDevice(CECDEVICE_TV);
1183     bool bTvPresent = (tv && tv->GetStatus() == CEC_DEVICE_STATUS_PRESENT);
1184     bool bActiveSourceFailed(false);
1185     if (bTvPresent)
1186       bActiveSourceFailed = !m_busDevice->TransmitImageViewOn();
1187     else
1188       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV not present, not sending 'image view on'");
1189
1190     // check if we're allowed to switch sources
1191     bool bSourceSwitchAllowed = SourceSwitchAllowed();
1192     if (!bSourceSwitchAllowed)
1193       LIB_CEC->AddLog(CEC_LOG_DEBUG, "source switch is currently not allowed by command handler");
1194
1195     // switch sources (if allowed)
1196     if (!bActiveSourceFailed && bSourceSwitchAllowed)
1197     {
1198       bActiveSourceFailed = !m_busDevice->TransmitActiveSource(false);
1199       if (bTvPresent && !bActiveSourceFailed)
1200         bActiveSourceFailed = !m_busDevice->TransmitMenuState(CECDEVICE_TV, false);
1201
1202       // update the deck status for playback devices
1203       if (bTvPresent && !bActiveSourceFailed)
1204       {
1205         CCECPlaybackDevice *playbackDevice = m_busDevice->AsPlaybackDevice();
1206         if (playbackDevice && SendDeckStatusUpdateOnActiveSource())
1207           bActiveSourceFailed = !playbackDevice->TransmitDeckStatus(CECDEVICE_TV, false);
1208       }
1209     }
1210
1211     // retry later
1212     if (bActiveSourceFailed || !bSourceSwitchAllowed)
1213     {
1214       LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
1215       int64_t now(GetTimeMs());
1216       CLockObject lock(m_mutex);
1217       if (m_iActiveSourcePending == 0 || m_iActiveSourcePending < now)
1218         m_iActiveSourcePending = now + (int64_t)CEC_ACTIVE_SOURCE_SWITCH_RETRY_TIME_MS;
1219       return false;
1220     }
1221     else
1222     {
1223       CLockObject lock(m_mutex);
1224       // clear previous pending active source command
1225       m_iActiveSourcePending = 0;
1226     }
1227
1228     // mark the handler as initialised
1229     CLockObject lock(m_mutex);
1230     m_bHandlerInited = true;
1231   }
1232   return true;
1233 }
1234
1235 void CCECCommandHandler::ScheduleActivateSource(uint64_t iDelay)
1236 {
1237   CLockObject lock(m_mutex);
1238   m_iActiveSourcePending = GetTimeMs() + iDelay;
1239 }