src/lib/implementations/SLCommandHandler.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 "SLCommandHandler.h"
  34 #include "../devices/CECBusDevice.h"
  35 #include "../devices/CECPlaybackDevice.h"
  36 #include "../CECProcessor.h"
  37 #include "../LibCEC.h"
  38
  39 using namespace CEC;
  40
  41 #define SL_COMMAND_UNKNOWN_01           0x01
  42 #define SL_COMMAND_UNKNOWN_02           0x02
  43 #define SL_COMMAND_UNKNOWN_03           0x05
  44
  45 #define SL_COMMAND_REQUEST_POWER_STATUS 0xa0
  46 #define SL_COMMAND_POWER_ON             0x03
  47 #define SL_COMMAND_CONNECT_REQUEST      0x04
  48 #define SL_COMMAND_SET_DEVICE_MODE      0x05
  49
  50 CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
  51     CCECCommandHandler(busDevice),
  52     m_bSLEnabled(false),
  53     m_bPowerStateReset(false),
  54     m_bActiveSourceSent(false)
  55 {
  56   m_vendorId = CEC_VENDOR_LG;
  57   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  58
  59   /* imitate LG devices */
  60   if (primary && m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  61     primary->SetVendorId(CEC_VENDOR_LG);
  62
  63   /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
  64   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
  65     m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
  66
  67   /* LG devices always return "korean" as language */
  68   cec_menu_language lang;
  69   lang.device = m_busDevice->GetLogicalAddress();
  70   snprintf(lang.language, 4, "eng");
  71   m_busDevice->SetMenuLanguage(lang);
  72 }
  73
  74 bool CSLCommandHandler::InitHandler(void)
  75 {
  76   if (m_bHandlerInited)
  77     return true;
  78   m_bHandlerInited = true;
  79
  80   /* reply with LGs vendor id */
  81   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  82   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  83     primary->TransmitVendorID(CECDEVICE_BROADCAST, false);
  84
  85   primary->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
  86   return true;
  87 }
  88
  89 bool CSLCommandHandler::ActivateSource(void)
  90 {
  91   if (m_bActiveSourceSent)
  92     return false;
  93   m_bActiveSourceSent = true;
  94
  95   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  96   primary->SetActiveSource();
  97   primary->TransmitActiveSource();
  98   return true;
  99 }
 100
 101 bool CSLCommandHandler::HandleActiveSource(const cec_command &command)
 102 {
 103   if (command.parameters.size == 2)
 104   {
 105     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 106     if (iAddress != m_busDevice->GetPhysicalAddress(false))
 107       m_bSLEnabled = false;
 108     return m_processor->SetActiveSource(iAddress);
 109   }
 110
 111   return true;
 112 }
 113
 114 bool CSLCommandHandler::HandleDeviceVendorId(const cec_command &command)
 115 {
 116   SetVendorId(command);
 117
 118   if (!m_bSLEnabled)
 119   {
 120     cec_command response;
 121     cec_command::Format(response, m_processor->GetLogicalAddress(), command.initiator, CEC_OPCODE_FEATURE_ABORT);
 122     return Transmit(response);
 123   }
 124   return true;
 125 }
 126
 127 bool CSLCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 128 {
 129   if (m_processor->IsRunning() && m_busDevice->MyLogicalAddressContains(command.destination))
 130   {
 131     CCECBusDevice *device = GetDevice(command.destination);
 132     if (device)
 133       return device->TransmitPhysicalAddress(); // only the physical address, don't send image view on
 134   }
 135
 136   return false;
 137 }
 138
 139 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
 140 {
 141   if (command.parameters.size == 1 &&
 142       command.parameters[0] == SL_COMMAND_UNKNOWN_01)
 143   {
 144     HandleVendorCommand01(command);
 145     return true;
 146   }
 147   else if (command.parameters.size == 2 &&
 148       command.parameters[0] == SL_COMMAND_POWER_ON)
 149   {
 150     HandleVendorCommandPowerOn(command);
 151     return true;
 152   }
 153   else if (command.parameters.size == 2 &&
 154       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
 155   {
 156     HandleVendorCommandSLConnect(command);
 157     return true;
 158   }
 159   else if (command.parameters.size == 1 &&
 160       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
 161   {
 162     HandleVendorCommandPowerOnStatus(command);
 163     return true;
 164   }
 165
 166   return false;
 167 }
 168
 169 void CSLCommandHandler::HandleVendorCommand01(const cec_command &command)
 170 {
 171   m_processor->GetPrimaryDevice()->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 172   TransmitVendorCommand0205(command.destination, command.initiator);
 173 }
 174
 175 void CSLCommandHandler::TransmitVendorCommand0205(const cec_logical_address iSource, const cec_logical_address iDestination)
 176 {
 177   cec_command response;
 178   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 179   response.PushBack(SL_COMMAND_UNKNOWN_02);
 180   response.PushBack(SL_COMMAND_UNKNOWN_03);
 181
 182   Transmit(response, false);
 183 }
 184
 185 void CSLCommandHandler::HandleVendorCommandPowerOn(const cec_command &command)
 186 {
 187   CCECBusDevice *device = m_processor->GetPrimaryDevice();
 188   if (device)
 189   {
 190     m_bSLEnabled = true;
 191
 192     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON); //XXX
 193     device->TransmitPowerState(command.initiator);
 194     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 195
 196     device->SetActiveSource();
 197     TransmitImageViewOn(device->GetLogicalAddress(), command.initiator);
 198   }
 199 }
 200 void CSLCommandHandler::HandleVendorCommandPowerOnStatus(const cec_command &command)
 201 {
 202   if (command.destination != CECDEVICE_BROADCAST)
 203   {
 204     CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 205     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 206     device->TransmitPowerState(command.initiator);
 207     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 208   }
 209 }
 210
 211 void CSLCommandHandler::HandleVendorCommandSLConnect(const cec_command &command)
 212 {
 213   m_bSLEnabled = true;
 214   TransmitVendorCommandSetDeviceMode(m_processor->GetLogicalAddress(), command.initiator, CEC_DEVICE_TYPE_RECORDING_DEVICE);
 215
 216   ActivateSource();
 217 }
 218
 219 void CSLCommandHandler::TransmitVendorCommandSetDeviceMode(const cec_logical_address iSource, const cec_logical_address iDestination, const cec_device_type type)
 220 {
 221   cec_command response;
 222   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 223   response.PushBack(SL_COMMAND_SET_DEVICE_MODE);
 224   response.PushBack((uint8_t)type);
 225   Transmit(response, false);
 226 }
 227
 228 bool CSLCommandHandler::HandleGiveDeckStatus(const cec_command &command)
 229 {
 230   if (m_processor->IsRunning() && m_busDevice->MyLogicalAddressContains(command.destination))
 231   {
 232     CCECBusDevice *device = GetDevice(command.destination);
 233     if (device && (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE || device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
 234     {
 235       if (command.parameters.size > 0)
 236       {
 237         if (command.parameters[0] == CEC_STATUS_REQUEST_ON)
 238         {
 239           ((CCECPlaybackDevice *) device)->SetDeckStatus(CEC_DECK_INFO_STOP);
 240           return ((CCECPlaybackDevice *) device)->TransmitDeckStatus(command.initiator) &&
 241               device->TransmitImageViewOn() &&
 242               device->TransmitPhysicalAddress();
 243         }
 244         else if (command.parameters[0] == CEC_STATUS_REQUEST_ONCE)
 245         {
 246           ((CCECPlaybackDevice *) device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 247           return ((CCECPlaybackDevice *) device)->TransmitDeckStatus(command.initiator);
 248         }
 249       }
 250     }
 251     return CCECCommandHandler::HandleGiveDeckStatus(command);
 252   }
 253
 254   return false;
 255 }
 256
 257 bool CSLCommandHandler::HandleGiveDevicePowerStatus(const cec_command &command)
 258 {
 259   bool bReturn(false);
 260   if (m_processor->IsRunning() && m_busDevice->MyLogicalAddressContains(command.destination))
 261   {
 262     CCECBusDevice *device = GetDevice(command.destination);
 263     if (device && device->GetPowerStatus(false) != CEC_POWER_STATUS_ON)
 264     {
 265       bReturn = device->TransmitPowerState(command.initiator);
 266       device->SetPowerStatus(CEC_POWER_STATUS_ON);
 267     }
 268     else if (!ActivateSource())
 269     {
 270       /* assume that we've bugged out */
 271       CLibCEC::AddLog(CEC_LOG_NOTICE, "LG seems to have bugged out. resetting to 'in transition standby to on'");
 272       m_bActiveSourceSent = false;
 273       device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 274       bReturn = device->TransmitPowerState(command.initiator);
 275       device->SetPowerStatus(CEC_POWER_STATUS_ON);
 276     }
 277     else
 278     {
 279       bReturn = true;
 280     }
 281   }
 282
 283   return bReturn;
 284 }
 285
 286 bool CSLCommandHandler::HandleRequestActiveSource(const cec_command &command)
 287 {
 288   if (m_processor->IsRunning())
 289   {
 290     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %i requests active source, ignored", (uint8_t) command.initiator);
 291     return true;
 292   }
 293   return false;
 294 }
 295
 296 bool CSLCommandHandler::HandleFeatureAbort(const cec_command &command)
 297 {
 298   if (command.parameters.size == 0 && m_processor->GetPrimaryDevice()->GetPowerStatus() == CEC_POWER_STATUS_ON && !m_bSLEnabled)
 299   {
 300     m_processor->GetPrimaryDevice()->TransmitPowerState(command.initiator);
 301     m_processor->GetPrimaryDevice()->TransmitVendorID(CECDEVICE_BROADCAST, false);
 302   }
 303
 304   return CCECCommandHandler::HandleFeatureAbort(command);
 305 }
 306
 307 bool CSLCommandHandler::HandleStandby(const cec_command &command)
 308 {
 309   if (command.initiator == CECDEVICE_TV)
 310   {
 311     m_bSLEnabled = false;
 312     m_bPowerStateReset = false;
 313     m_bActiveSourceSent = false;
 314   }
 315
 316   CCECBusDevice *device = GetDevice(command.initiator);
 317   if (device)
 318     device->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 319
 320   return true;
 321 }