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