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 #include "../platform/timeutils.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_CONNECT_ACCEPT       0x05
  49
  50 CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
  51     CCECCommandHandler(busDevice),
  52     m_bAwaitingReceiveFailed(false),
  53     m_bSLEnabled(false),
  54     m_bVendorIdSent(false)
  55 {
  56 }
  57
  58 void CSLCommandHandler::SetLGDeckStatus(void)
  59 {
  60   /* LG TVs only route keypresses when the deck status is set to 0x20 */
  61   CCECBusDevice *device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
  62   if (device)
  63     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
  64
  65   device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_RECORDING_DEVICE);
  66   if (device)
  67     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
  68 }
  69
  70 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
  71 {
  72   if (command.parameters.size == 1 &&
  73       command.parameters[0] == SL_COMMAND_UNKNOWN_01)
  74   {
  75     HandleVendorCommand01(command);
  76     return true;
  77   }
  78   else if (command.parameters.size == 2 &&
  79       command.parameters[0] == SL_COMMAND_POWER_ON)
  80   {
  81     HandleVendorCommandPowerOn(command);
  82     return true;
  83   }
  84   else if (command.parameters.size == 2 &&
  85       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
  86   {
  87     HandleVendorCommandSLConnect(command);
  88     return true;
  89   }
  90   else if (command.parameters.size == 1 &&
  91       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
  92   {
  93     HandleVendorCommandPowerOnStatus(command);
  94     return true;
  95   }
  96
  97   return false;
  98 }
  99
 100 void CSLCommandHandler::HandleVendorCommand01(const cec_command &command)
 101 {
 102   TransmitVendorCommand0205(command.destination, command.initiator);
 103 }
 104
 105 void CSLCommandHandler::TransmitVendorCommand0205(const cec_logical_address iSource, const cec_logical_address iDestination)
 106 {
 107   cec_command response;
 108   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 109   response.PushBack(SL_COMMAND_UNKNOWN_02);
 110   response.PushBack(SL_COMMAND_UNKNOWN_03);
 111
 112   Transmit(response);
 113 }
 114
 115 void CSLCommandHandler::TransmitVendorCommand05(const cec_logical_address iSource, const cec_logical_address iDestination)
 116 {
 117   m_bSLEnabled = true;
 118   cec_command response;
 119   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 120   response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
 121   response.PushBack((uint8_t)iSource);
 122   Transmit(response);
 123 }
 124
 125 void CSLCommandHandler::HandleVendorCommandPowerOn(const cec_command &command)
 126 {
 127   CCECBusDevice *device = m_processor->GetPrimaryDevice();
 128   if (device)
 129   {
 130     m_bSLEnabled = true;
 131     SetLGDeckStatus();
 132     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 133     device->TransmitPowerState(command.initiator);
 134     device->TransmitVendorID(command.initiator);
 135     TransmitPowerOn(device->GetLogicalAddress(), command.initiator);
 136   }
 137 }
 138
 139 void CSLCommandHandler::HandleVendorCommandSLConnect(const cec_command &command)
 140 {
 141   m_bSLEnabled = true;
 142   m_processor->m_busDevices[command.initiator]->SetActiveSource();
 143   m_processor->m_busDevices[command.destination]->TransmitActiveSource();
 144   TransmitVendorCommand05(command.destination, command.initiator);
 145   SetLGDeckStatus();
 146 }
 147
 148 void CSLCommandHandler::HandleVendorCommandPowerOnStatus(const cec_command &command)
 149 {
 150   if (command.destination != CECDEVICE_BROADCAST)
 151   {
 152     CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 153     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 154     device->TransmitPowerState(command.initiator);
 155     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 156   }
 157 }
 158
 159 bool CSLCommandHandler::TransmitLGVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 160 {
 161   cec_command response;
 162   cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_DEVICE_VENDOR_ID);
 163   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 16) & 0xFF));
 164   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 8) & 0xFF));
 165   response.parameters.PushBack((uint8_t) ((uint64_t)CEC_VENDOR_LG & 0xFF));
 166
 167   Transmit(response);
 168
 169   cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 170   Transmit(response);
 171
 172   return true;
 173 }
 174
 175 bool CSLCommandHandler::HandleCommand(const cec_command &command)
 176 {
 177   bool bHandled(false);
 178
 179   if (m_processor->IsStarted() && (m_busDevice->MyLogicalAddressContains(command.destination) ||
 180       command.destination == CECDEVICE_BROADCAST))
 181   {
 182     switch(command.opcode)
 183     {
 184     case CEC_OPCODE_VENDOR_COMMAND:
 185       bHandled = HandleVendorCommand(command);
 186       break;
 187     case CEC_OPCODE_FEATURE_ABORT:
 188       {
 189         if (!m_bVendorIdSent)
 190         {
 191           m_bVendorIdSent = true;
 192           TransmitLGVendorId(m_processor->GetLogicalAddresses().primary, CECDEVICE_BROADCAST);
 193           m_processor->GetPrimaryDevice()->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 194         }
 195       }
 196       bHandled = true;
 197       break;
 198     default:
 199       break;
 200     }
 201   }
 202
 203   if (!bHandled)
 204     bHandled = CCECCommandHandler::HandleCommand(command);
 205
 206   return bHandled;
 207 }
 208
 209 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 210 {
 211   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
 212   m_bAwaitingReceiveFailed = true;
 213 }
 214
 215 bool CSLCommandHandler::HandleReceiveFailed(void)
 216 {
 217   if (m_bAwaitingReceiveFailed)
 218   {
 219     m_bAwaitingReceiveFailed = false;
 220     return false;
 221   }
 222
 223   return true;
 224 }
 225
 226 bool CSLCommandHandler::InitHandler(void)
 227 {
 228   if (m_bHandlerInited)
 229     return true;
 230   m_bHandlerInited = true;
 231
 232   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 233
 234   /* imitate LG devices */
 235   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 236     primary->SetVendorId(CEC_VENDOR_LG, false);
 237
 238   /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
 239   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 240     m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
 241
 242   /* LG devices always return "korean" as language */
 243   cec_menu_language lang;
 244   lang.device = m_busDevice->GetLogicalAddress();
 245   snprintf(lang.language, 4, "eng");
 246   m_busDevice->SetMenuLanguage(lang);
 247
 248   /* reply with LGs vendor id */
 249   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 250     primary->TransmitVendorID(CECDEVICE_TV, false);
 251
 252   return true;
 253 }
 254
 255 bool CSLCommandHandler::TransmitPowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 256 {
 257   if (iDestination != CECDEVICE_BROADCAST &&
 258       iDestination != CECDEVICE_TV &&
 259       m_processor->m_busDevices[iDestination]->GetVendorId(false) == CEC_VENDOR_LG)
 260   {
 261     cec_command command;
 262     cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 263     command.parameters.PushBack((uint8_t)SL_COMMAND_POWER_ON);
 264     command.parameters.PushBack(0x00);
 265     return Transmit(command);
 266   }
 267
 268   return CCECCommandHandler::TransmitImageViewOn(iInitiator, iDestination);
 269 }
 270
 271 bool CSLCommandHandler::HandleActiveSource(const cec_command &command)
 272 {
 273   if (command.parameters.size == 2)
 274   {
 275     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 276     if (iAddress == 0)
 277       return m_processor->GetPrimaryDevice()->TransmitPhysicalAddress();
 278     else
 279       return m_processor->SetActiveSource(iAddress);
 280   }
 281
 282   return true;
 283 }