src/lib/implementations/SLCommandHandler.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 "SLCommandHandler.h"
  34 #include "../devices/CECBusDevice.h"
  35 #include "../devices/CECPlaybackDevice.h"
  36 #include "../CECProcessor.h"
  37
  38 using namespace CEC;
  39
  40 #define SL_COMMAND_UNKNOWN_01           0x01
  41 #define SL_COMMAND_UNKNOWN_02           0x02
  42 #define SL_COMMAND_UNKNOWN_03           0x05
  43
  44 #define SL_COMMAND_REQUEST_POWER_STATUS 0xa0
  45 #define SL_COMMAND_POWER_ON             0x03
  46 #define SL_COMMAND_CONNECT_REQUEST      0x04
  47 #define SL_COMMAND_CONNECT_ACCEPT       0x05
  48
  49 CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
  50     CCECCommandHandler(busDevice),
  51     m_bAwaitingReceiveFailed(false),
  52     m_bSLEnabled(false),
  53     m_bPowerStateReset(false)
  54 {
  55   m_vendorId = CEC_VENDOR_LG;
  56   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  57
  58   /* imitate LG devices */
  59   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  60     primary->SetVendorId(CEC_VENDOR_LG);
  61   SetLGDeckStatus();
  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
  75 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
  76 {
  77   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
  78   m_bAwaitingReceiveFailed = true;
  79 }
  80
  81 bool CSLCommandHandler::HandleReceiveFailed(void)
  82 {
  83   if (m_bAwaitingReceiveFailed)
  84   {
  85     m_bAwaitingReceiveFailed = false;
  86     return false;
  87   }
  88
  89   return true;
  90 }
  91
  92 bool CSLCommandHandler::InitHandler(void)
  93 {
  94   if (m_bHandlerInited)
  95     return true;
  96   m_bHandlerInited = true;
  97
  98   /* reply with LGs vendor id */
  99   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 100   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 101     primary->TransmitVendorID(CECDEVICE_TV, false);
 102
 103   primary->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 104   return true;
 105 }
 106
 107 bool CSLCommandHandler::ActivateSource(void)
 108 {
 109   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 110   primary->SetActiveSource();
 111   primary->TransmitActiveSource();
 112   return true;
 113 }
 114
 115 bool CSLCommandHandler::HandleActiveSource(const cec_command &command)
 116 {
 117   if (command.parameters.size == 2)
 118   {
 119     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 120     if (iAddress != m_busDevice->GetPhysicalAddress(false))
 121       m_bSLEnabled = false;
 122     return m_processor->SetActiveSource(iAddress);
 123   }
 124
 125   return true;
 126 }
 127
 128 bool CSLCommandHandler::HandleFeatureAbort(const cec_command &command)
 129 {
 130   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 131   if (primary->GetPowerStatus(false) == CEC_POWER_STATUS_ON && !m_bPowerStateReset && !m_bSLEnabled)
 132   {
 133     m_bPowerStateReset = true;
 134     primary->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 135   }
 136
 137   return CCECCommandHandler::HandleFeatureAbort(command);
 138 }
 139
 140 bool CSLCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 141 {
 142   if (m_processor->IsStarted() && m_busDevice->MyLogicalAddressContains(command.destination))
 143   {
 144     CCECBusDevice *device = GetDevice(command.destination);
 145     if (device)
 146       return device->TransmitPhysicalAddress();
 147   }
 148
 149   return false;
 150 }
 151
 152 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
 153 {
 154   if (command.parameters.size == 1 &&
 155       command.parameters[0] == SL_COMMAND_UNKNOWN_01)
 156   {
 157     HandleVendorCommand01(command);
 158     return true;
 159   }
 160   else if (command.parameters.size == 2 &&
 161       command.parameters[0] == SL_COMMAND_POWER_ON)
 162   {
 163     HandleVendorCommandPowerOn(command);
 164     return true;
 165   }
 166   else if (command.parameters.size == 2 &&
 167       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
 168   {
 169     HandleVendorCommandSLConnect(command);
 170     return true;
 171   }
 172   else if (command.parameters.size == 1 &&
 173       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
 174   {
 175     HandleVendorCommandPowerOnStatus(command);
 176     return true;
 177   }
 178
 179   return false;
 180 }
 181
 182 void CSLCommandHandler::HandleVendorCommand01(const cec_command &command)
 183 {
 184   TransmitVendorCommand0205(command.destination, command.initiator);
 185 }
 186
 187 void CSLCommandHandler::TransmitVendorCommand0205(const cec_logical_address iSource, const cec_logical_address iDestination)
 188 {
 189   cec_command response;
 190   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 191   response.PushBack(SL_COMMAND_UNKNOWN_02);
 192   response.PushBack(SL_COMMAND_UNKNOWN_03);
 193
 194   Transmit(response, false);
 195 }
 196
 197 void CSLCommandHandler::HandleVendorCommandPowerOn(const cec_command &command)
 198 {
 199   CCECBusDevice *device = m_processor->GetPrimaryDevice();
 200   if (device)
 201   {
 202     m_bSLEnabled = true;
 203
 204     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON); //XXX
 205     device->TransmitPowerState(command.initiator);
 206     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 207
 208     SetLGDeckStatus();
 209     device->SetActiveSource();
 210     TransmitImageViewOn(device->GetLogicalAddress(), command.initiator);
 211   }
 212 }
 213 void CSLCommandHandler::HandleVendorCommandPowerOnStatus(const cec_command &command)
 214 {
 215   if (command.destination != CECDEVICE_BROADCAST)
 216   {
 217     CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 218     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 219     device->TransmitPowerState(command.initiator);
 220     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 221   }
 222 }
 223
 224 void CSLCommandHandler::HandleVendorCommandSLConnect(const cec_command &command)
 225 {
 226   m_bSLEnabled = true;
 227   SetLGDeckStatus();
 228
 229   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 230
 231   primary->SetActiveSource();
 232   TransmitImageViewOn(primary->GetLogicalAddress(), command.initiator);
 233   TransmitVendorCommand05(primary->GetLogicalAddress(), command.initiator);
 234 }
 235
 236 void CSLCommandHandler::TransmitVendorCommand05(const cec_logical_address iSource, const cec_logical_address iDestination)
 237 {
 238   cec_command response;
 239   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 240   response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
 241   response.PushBack((uint8_t)iSource);
 242   Transmit(response, false);
 243 }
 244
 245 void CSLCommandHandler::SetLGDeckStatus(void)
 246 {
 247   /* LG TVs only route keypresses when the deck status is set to 0x20 */
 248   CCECBusDevice *device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
 249   if (device)
 250     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 251
 252   device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_RECORDING_DEVICE);
 253   if (device)
 254     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 255 }