X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Flib%2Fimplementations%2FSLCommandHandler.cpp;h=ff47e1e8bc6e5fce27c854aa4b9a07273720ff8b;hb=5d71f08c3211791a51f6d7b0bde3d41f2e56d71f;hp=4a9d19e3c5640e8b17edb474d81c6ebd767e8cb1;hpb=ae693aaa8545b853946bf490dd0444c5862bafb9;p=deb_libcec.git

diff --git a/src/lib/implementations/SLCommandHandler.cpp b/src/lib/implementations/SLCommandHandler.cpp
index 4a9d19e..ff47e1e 100644
--- a/src/lib/implementations/SLCommandHandler.cpp
+++ b/src/lib/implementations/SLCommandHandler.cpp
@@ -1,7 +1,7 @@
 /*
  * This file is part of the libCEC(R) library.
  *
- * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited.  All rights reserved.
+ * libCEC(R) is Copyright (C) 2011-2013 Pulse-Eight Limited.  All rights reserved.
  * libCEC(R) is an original work, containing original code.
  *
  * libCEC(R) is a trademark of Pulse-Eight Limited.
@@ -30,224 +30,399 @@
  *     http://www.pulse-eight.net/
  */
 
+#include "env.h"
 #include "SLCommandHandler.h"
-#include "../devices/CECBusDevice.h"
-#include "../devices/CECPlaybackDevice.h"
-#include "../CECProcessor.h"
-#include "../platform/timeutils.h"
+
+#include "lib/platform/util/timeutils.h"
+#include "lib/devices/CECBusDevice.h"
+#include "lib/devices/CECPlaybackDevice.h"
+#include "lib/CECProcessor.h"
+#include "lib/LibCEC.h"
 
 using namespace CEC;
+using namespace PLATFORM;
+
+#define SL_COMMAND_TYPE_HDDRECORDER_DISC  0x01
+#define SL_COMMAND_TYPE_VCR               0x02
+#define SL_COMMAND_TYPE_DVDPLAYER         0x03
+#define SL_COMMAND_TYPE_HDDRECORDER_DISC2 0x04
+#define SL_COMMAND_TYPE_HDDRECORDER       0x05
 
-#define SL_COMMAND_UNKNOWN_01        0x01
-#define SL_COMMAND_UNKNOWN_02        0x02
-#define SL_COMMAND_UNKNOWN_03        0x05
+#define SL_COMMAND_INIT                 0x01
+#define SL_COMMAND_ACK_INIT             0x02
+#define SL_COMMAND_POWER_ON             0x03
+#define SL_COMMAND_CONNECT_REQUEST      0x04
+#define SL_COMMAND_SET_DEVICE_MODE      0x05
+#define SL_COMMAND_REQUEST_POWER_STATUS 0xa0
 
-#define SL_COMMAND_REQUEST_VENDOR_ID 0xa0
-#define SL_COMMAND_CONNECT_REQUEST   0x04
-#define SL_COMMAND_CONNECT_ACCEPT    0x05
+#define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
+#define ToString(p) LIB_CEC->ToString(p)
 
-CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
-    CCECCommandHandler(busDevice),
-    m_bAwaitingReceiveFailed(false),
-    m_bSLEnabled(false),
-    m_bSkipNextVendorId(false)
+CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice,
+                                     int32_t iTransmitTimeout /* = CEC_DEFAULT_TRANSMIT_TIMEOUT */,
+                                     int32_t iTransmitWait /* = CEC_DEFAULT_TRANSMIT_WAIT */,
+                                     int8_t iTransmitRetries /* = CEC_DEFAULT_TRANSMIT_RETRIES */,
+                                     int64_t iActiveSourcePending /* = 0 */) :
+    CCECCommandHandler(busDevice, iTransmitTimeout, iTransmitWait, iTransmitRetries, iActiveSourcePending),
+    m_bSLEnabled(false)
 {
+  m_vendorId = CEC_VENDOR_LG;
+
+  /* LG devices don't always reply to CEC version requests, so just set it to 1.3a */
+  m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
+
+  /* LG devices always return "korean" as language */
+  cec_menu_language lang;
+  lang.device = m_busDevice->GetLogicalAddress();
+  snprintf(lang.language, 4, "eng");
+  m_busDevice->SetMenuLanguage(lang);
 }
 
-bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
+bool CSLCommandHandler::InitHandler(void)
 {
-  if (command.parameters.size == 1 &&
-      command.parameters[0] == SL_COMMAND_UNKNOWN_01)
+  if (m_bHandlerInited)
+    return true;
+  m_bHandlerInited = true;
+
+  if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
+    return true;
+
+  CCECBusDevice *primary = m_processor->GetPrimaryDevice();
+  if (primary && primary->GetLogicalAddress() != CECDEVICE_UNREGISTERED)
   {
-    /* enable SL */
-    cec_command response;
-    cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND, m_iTransmitTimeout);
-    response.PushBack(SL_COMMAND_UNKNOWN_02);
-    response.PushBack(SL_COMMAND_UNKNOWN_03);
+    /* imitate LG devices */
+    if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
+    {
+      primary->SetVendorId(CEC_VENDOR_LG);
+      primary->ReplaceHandler(false);
+    }
+  }
 
-    Transmit(response);
+  return true;
+}
+
+int CSLCommandHandler::HandleVendorCommand(const cec_command &command)
+{
+  if (!m_processor->IsHandledByLibCEC(command.destination))
     return true;
+
+  if (command.parameters.size == 1 &&
+      command.parameters[0] == SL_COMMAND_INIT)
+  {
+    HandleVendorCommandSLInit(command);
+    return COMMAND_HANDLED;
+  }
+  else if (command.parameters.size == 2 &&
+      command.parameters[0] == SL_COMMAND_POWER_ON)
+  {
+    HandleVendorCommandPowerOn(command);
+    return COMMAND_HANDLED;
   }
   else if (command.parameters.size == 2 &&
       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
   {
-    /* enable SL */
-    cec_command response;
-    cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND, m_iTransmitTimeout);
-    response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
-    response.PushBack(m_busDevice->GetProcessor()->GetLogicalAddresses().primary);
-    Transmit(response);
-
-    /* set deck status for the playback device */
-    TransmitDeckStatus(command.initiator);
-    return true;
+    HandleVendorCommandSLConnect(command);
+    return COMMAND_HANDLED;
   }
   else if (command.parameters.size == 1 &&
-      command.parameters[0] == SL_COMMAND_REQUEST_VENDOR_ID)
+      command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
   {
-//    if (command.destination != CECDEVICE_BROADCAST)
-//      m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary]->TransmitPowerState(command.initiator);
-    return true;
+    HandleVendorCommandPowerOnStatus(command);
+    return COMMAND_HANDLED;
   }
 
-  return false;
+  return CCECCommandHandler::HandleVendorCommand(command);
 }
 
-void CSLCommandHandler::TransmitDeckStatus(const cec_logical_address iDestination)
+void CSLCommandHandler::HandleVendorCommandSLInit(const cec_command &command)
 {
-  /* set deck status for the playback device */
-  CCECBusDevice *primary = m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary];
-  if (primary->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE || primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
+  CCECBusDevice* dev = m_processor->GetDevice(command.destination);
+  if (dev && dev->IsHandledByLibCEC())
   {
-    ((CCECPlaybackDevice *)primary)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
-    ((CCECPlaybackDevice *)primary)->TransmitDeckStatus(iDestination);
+    if (!dev->IsActiveSource())
+    {
+      dev->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
+      dev->TransmitPowerState(command.initiator, true);
+    }
+
+    TransmitVendorCommandSLAckInit(command.destination, command.initiator);
   }
 }
 
-bool CSLCommandHandler::TransmitLGVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination)
+void CSLCommandHandler::TransmitVendorCommandSLAckInit(const cec_logical_address iSource, const cec_logical_address iDestination)
 {
   cec_command response;
-  cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_DEVICE_VENDOR_ID, m_iTransmitTimeout);
-  response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 16) & 0xFF));
-  response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 8) & 0xFF));
-  response.parameters.PushBack((uint8_t) ((uint64_t)CEC_VENDOR_LG & 0xFF));
+  cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
+  response.PushBack(SL_COMMAND_ACK_INIT);
+  response.PushBack(SL_COMMAND_TYPE_HDDRECORDER);
 
-  Transmit(response);
-  return true;
+  Transmit(response, false, true);
+  SetSLInitialised();
 }
 
-bool CSLCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
+void CSLCommandHandler::HandleVendorCommandPowerOn(const cec_command &command)
 {
-  /* imitate LG devices */
-  CCECBusDevice *device = GetDevice(command.destination);
+  if (command.initiator != CECDEVICE_TV)
+    return;
+
+  CCECBusDevice *device = m_processor->GetPrimaryDevice();
   if (device)
-    device->SetVendorId(CEC_VENDOR_LG);
+  {
+    SetSLInitialised();
+    device->MarkAsActiveSource();
+    device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
+    device->TransmitPowerState(command.initiator, true);
+
+    CEvent::Sleep(2000);
+    device->SetPowerStatus(CEC_POWER_STATUS_ON);
+    device->TransmitPowerState(command.initiator, false);
+    device->TransmitPhysicalAddress(false);
+
+    if (device->IsActiveSource())
+      ActivateSource();
+  }
+}
+void CSLCommandHandler::HandleVendorCommandPowerOnStatus(const cec_command &command)
+{
+  if (command.destination != CECDEVICE_BROADCAST)
+  {
+    CCECBusDevice *device = m_processor->GetPrimaryDevice();
+    if (device)
+    {
+      device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
+      device->TransmitPowerState(command.initiator, true);
+      device->SetPowerStatus(CEC_POWER_STATUS_ON);
+    }
+  }
+}
+
+void CSLCommandHandler::HandleVendorCommandSLConnect(const cec_command &command)
+{
+  SetSLInitialised();
+  TransmitVendorCommandSetDeviceMode(command.destination, command.initiator, CEC_DEVICE_TYPE_RECORDING_DEVICE);
+
+
+  if (m_processor->IsActiveSource(command.destination) && m_processor->IsHandledByLibCEC(command.destination))
+  {
+    CCECBusDevice* dev = m_processor->GetDevice(command.destination);
+    CCECPlaybackDevice* pb = dev->AsPlaybackDevice();
+    if (pb)
+      pb->TransmitDeckStatus(command.initiator, true);
+    dev->TransmitPowerState(command.initiator, true);
+  }
+}
+
+void CSLCommandHandler::TransmitVendorCommandSetDeviceMode(const cec_logical_address iSource, const cec_logical_address iDestination, const cec_device_type type)
+{
+  cec_command response;
+  cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
+  response.PushBack(SL_COMMAND_SET_DEVICE_MODE);
+  response.PushBack((uint8_t)type);
+  Transmit(response, false, true);
+}
 
-  return CCECCommandHandler::HandleGiveDeviceVendorId(command);
+int CSLCommandHandler::HandleGiveDeckStatus(const cec_command &command)
+{
+  if (!m_processor->CECInitialised() ||
+      !m_processor->IsHandledByLibCEC(command.destination))
+    return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
+
+  CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
+  if (!device || command.parameters.size == 0)
+    return CEC_ABORT_REASON_INVALID_OPERAND;
+
+  device->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
+  if (command.parameters[0] == CEC_STATUS_REQUEST_ON)
+  {
+    device->TransmitDeckStatus(command.initiator, true);
+    ActivateSource();
+    return COMMAND_HANDLED;
+  }
+  else if (command.parameters[0] == CEC_STATUS_REQUEST_ONCE)
+  {
+    device->TransmitDeckStatus(command.initiator, true);
+    return COMMAND_HANDLED;
+  }
+
+  return CCECCommandHandler::HandleGiveDeckStatus(command);
 }
 
-bool CSLCommandHandler::HandleCommand(const cec_command &command)
+int CSLCommandHandler::HandleGiveDevicePowerStatus(const cec_command &command)
 {
-  bool bHandled(false);
-  if (m_busDevice->MyLogicalAddressContains(command.destination) ||
-      command.destination == CECDEVICE_BROADCAST)
+  if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination) && command.initiator == CECDEVICE_TV)
   {
-    switch(command.opcode)
+    CCECBusDevice *device = GetDevice(command.destination);
+    if (device && device->GetCurrentPowerStatus() != CEC_POWER_STATUS_ON)
     {
-    case CEC_OPCODE_VENDOR_COMMAND:
-      bHandled = HandleVendorCommand(command);
-      break;
-    case CEC_OPCODE_GIVE_DECK_STATUS:
+      device->TransmitPowerState(command.initiator, true);
+      device->SetPowerStatus(CEC_POWER_STATUS_ON);
+    }
+    else
+    {
+      if (m_resetPowerState.IsSet() && m_resetPowerState.TimeLeft() > 0)
       {
-        if (command.parameters.size == 1)
-        {
-          if (command.parameters[0] == CEC_STATUS_REQUEST_ONCE ||
-              command.parameters[0] == CEC_STATUS_REQUEST_ON)
-            TransmitDeckStatus(command.initiator);
-          else
-            CCECCommandHandler::HandleCommand(command);
-        }
-        bHandled = true;
+        /* TODO assume that we've bugged out. the return button no longer works after this */
+        LIB_CEC->AddLog(CEC_LOG_WARNING, "FIXME: LG seems to have bugged out. resetting to 'in transition standby to on'. the return button will not work");
+        device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
+        device->TransmitPowerState(command.initiator, true);
+        device->SetPowerStatus(CEC_POWER_STATUS_ON);
+        m_resetPowerState.Init(5000);
       }
-      break;
-    case CEC_OPCODE_FEATURE_ABORT:
+      else
       {
-        if (!m_bSkipNextVendorId)
-        {
-          m_bSkipNextVendorId = true;
-          TransmitLGVendorId(m_busDevice->GetProcessor()->GetLogicalAddresses().primary, CECDEVICE_BROADCAST);
-        }
-        else
-        {
-          m_bSkipNextVendorId = false;
-        }
-        m_bSLEnabled = false;
+        device->TransmitPowerState(command.initiator, true);
+        m_resetPowerState.Init(5000);
       }
-      bHandled = true;
-    default:
-      break;
     }
-  }
 
-  if (!bHandled)
-    bHandled = CCECCommandHandler::HandleCommand(command);
+    return COMMAND_HANDLED;
+  }
 
-  return bHandled;
+  return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 }
 
-void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
+int CSLCommandHandler::HandleRequestActiveSource(const cec_command &command)
 {
-  CCECCommandHandler::HandlePoll(iInitiator, iDestination);
-  m_bAwaitingReceiveFailed = true;
+  if (m_processor->CECInitialised())
+  {
+    if (!SLInitialised())
+      TransmitVendorCommandSLAckInit(m_processor->GetPrimaryDevice()->GetLogicalAddress(), command.initiator);
+    CCECCommandHandler::HandleRequestActiveSource(command);
+  }
+  return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 }
 
-bool CSLCommandHandler::HandleReceiveFailed(void)
+int CSLCommandHandler::HandleFeatureAbort(const cec_command &command)
 {
-  if (m_bAwaitingReceiveFailed)
+  CCECBusDevice* primary = m_processor->GetPrimaryDevice();
+  if (command.parameters.size == 0 && primary->GetLogicalAddress() != CECDEVICE_UNKNOWN &&
+      primary->GetCurrentPowerStatus() == CEC_POWER_STATUS_ON && !SLInitialised() &&
+      command.initiator == CECDEVICE_TV)
   {
-    m_bAwaitingReceiveFailed = false;
-    return false;
+    if (!SLInitialised() && m_processor->IsActiveSource(command.destination))
+    {
+      TransmitVendorCommandSLAckInit(command.destination, command.initiator);
+      return COMMAND_HANDLED;
+    }
   }
 
-  return true;
+  return CCECCommandHandler::HandleFeatureAbort(command);
 }
 
-bool CSLCommandHandler::InitHandler(void)
+int CSLCommandHandler::HandleStandby(const cec_command &command)
 {
-  if (m_bSLEnabled)
-    return true;
-  m_bSLEnabled = true;
+  ResetSLState();
 
-  m_busDevice->GetProcessor()->SetStandardLineTimeout(3);
-  m_busDevice->GetProcessor()->SetRetryLineTimeout(3);
+  return CCECCommandHandler::HandleStandby(command);
+}
 
-  /* increase the number of retries because the tv is keeping the bus busy at times */
-  m_iTransmitWait    = 2000;
-  m_iTransmitRetries = 4;
-  m_iTransmitTimeout = 500;
+void CSLCommandHandler::ResetSLState(void)
+{
+  LIB_CEC->AddLog(CEC_LOG_NOTICE, "resetting SL initialised state");
+  CLockObject lock(m_SLMutex);
+  m_bSLEnabled = false;
+  m_processor->GetPrimaryDevice()->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
+}
 
-  CCECBusDevice *primary = m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary];
-  if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
-    primary->SetVendorId(CEC_VENDOR_LG, false);
+void CSLCommandHandler::SetSLInitialised(void)
+{
+  LIB_CEC->AddLog(CEC_LOG_NOTICE, "SL initialised");
+  CLockObject lock(m_SLMutex);
+  m_bSLEnabled = true;
+}
 
-  if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
-  {
-    primary->TransmitVendorID(CECDEVICE_TV);
-    primary->TransmitPhysicalAddress();
+bool CSLCommandHandler::SLInitialised(void)
+{
+  CLockObject lock(m_SLMutex);
+  return m_bSLEnabled;
+}
 
+bool CSLCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
+{
+  if (iDestination != CECDEVICE_TV)
+  {
+    /* LG devices only allow themselves to be woken up by the TV with a vendor command */
     cec_command command;
-    cec_command::Format(command, m_busDevice->GetProcessor()->GetLogicalAddresses().primary, CECDEVICE_TV, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID, m_iTransmitTimeout);
-    Transmit(command);
 
-    /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
-    m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
+    if (!m_bSLEnabled)
+      TransmitVendorID(CECDEVICE_TV, iDestination, CEC_VENDOR_LG, false);
+
+    cec_command::Format(command, CECDEVICE_TV, iDestination, CEC_OPCODE_VENDOR_COMMAND);
+    command.PushBack(SL_COMMAND_POWER_ON);
+    command.PushBack(0);
+    return Transmit(command, false, false);
   }
 
-  /* LG devices always return "korean" as language */
-  cec_menu_language lang;
-  lang.device = m_busDevice->GetLogicalAddress();
-  snprintf(lang.language, 4, "eng");
-  m_busDevice->SetMenuLanguage(lang);
+  return CCECCommandHandler::PowerOn(iInitiator, iDestination);
+}
 
-  if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
+bool CSLCommandHandler::ActivateSource(bool bTransmitDelayedCommandsOnly /* = false */)
+{
+  if (m_busDevice->IsActiveSource() &&
+      m_busDevice->IsHandledByLibCEC())
   {
-    /* LG TVs only route keypresses when the deck status is set to 0x20 */
-    cec_logical_addresses addr = m_busDevice->GetProcessor()->GetLogicalAddresses();
-    for (uint8_t iPtr = 0; iPtr < 15; iPtr++)
     {
-      CCECBusDevice *device = m_busDevice->GetProcessor()->m_busDevices[iPtr];
-
-      if (addr[iPtr])
+      CLockObject lock(m_mutex);
+      // check if we need to send a delayed source switch
+      if (bTransmitDelayedCommandsOnly)
       {
-        if (device && (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
-                       device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
-        {
-          ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
-          TransmitDeckStatus(CECDEVICE_TV);
-        }
+        if (m_iActiveSourcePending == 0 || GetTimeMs() < m_iActiveSourcePending)
+          return false;
+
+#ifdef CEC_DEBUGGING
+        LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
+#endif
       }
     }
-  }
 
+    CCECPlaybackDevice *device = m_busDevice->AsPlaybackDevice();
+    if (device)
+      device->SetDeckStatus(!device->IsActiveSource() ? CEC_DECK_INFO_OTHER_STATUS : CEC_DECK_INFO_OTHER_STATUS_LG);
+
+    // power on the TV
+    CCECBusDevice* tv = m_processor->GetDevice(CECDEVICE_TV);
+    bool bTvPresent = (tv && tv->GetStatus() == CEC_DEVICE_STATUS_PRESENT);
+    bool bActiveSourceFailed(false);
+    if (bTvPresent)
+    {
+      bActiveSourceFailed = !device->TransmitImageViewOn();
+    }
+    else
+    {
+      LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV not present, not sending 'image view on'");
+    }
+
+    // check if we're allowed to switch sources
+    bool bSourceSwitchAllowed = SourceSwitchAllowed();
+    if (!bSourceSwitchAllowed)
+      LIB_CEC->AddLog(CEC_LOG_DEBUG, "source switch is currently not allowed by command handler");
+
+    // switch sources (if allowed)
+    if (!bActiveSourceFailed && bSourceSwitchAllowed)
+    {
+      bActiveSourceFailed = !m_busDevice->TransmitActiveSource(false);
+    }
+
+    // retry later
+    if (bActiveSourceFailed || !bSourceSwitchAllowed)
+    {
+      LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
+      int64_t now(GetTimeMs());
+      CLockObject lock(m_mutex);
+      if (m_iActiveSourcePending == 0 || m_iActiveSourcePending < now)
+        m_iActiveSourcePending = now + (int64_t)CEC_ACTIVE_SOURCE_SWITCH_RETRY_TIME_MS;
+      return false;
+    }
+    else
+    {
+      CLockObject lock(m_mutex);
+      // clear previous pending active source command
+      m_iActiveSourcePending = 0;
+    }
+
+    // mark the handler as initialised
+    CLockObject lock(m_mutex);
+    m_bHandlerInited = true;
+  }
   return true;
 }