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 {
  54   m_vendorId = CEC_VENDOR_LG;
  55   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  56
  57   /* imitate LG devices */
  58   if (primary && m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  59     primary->SetVendorId(CEC_VENDOR_LG);
  60   SetLGDeckStatus();
  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_STANDBY);
  85   return true;
  86 }
  87
  88 bool CSLCommandHandler::ActivateSource(void)
  89 {
  90   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  91   primary->SetActiveSource();
  92   primary->TransmitActiveSource();
  93   return true;
  94 }
  95
  96 bool CSLCommandHandler::HandleActiveSource(const cec_command &command)
  97 {
  98   if (command.parameters.size == 2)
  99   {
 100     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 101     if (iAddress != m_busDevice->GetPhysicalAddress(false))
 102       m_bSLEnabled = false;
 103     return m_processor->SetActiveSource(iAddress);
 104   }
 105
 106   return true;
 107 }
 108
 109 bool CSLCommandHandler::HandleFeatureAbort(const cec_command &command)
 110 {
 111   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 112   if (primary->GetPowerStatus(false) == CEC_POWER_STATUS_ON && !m_bPowerStateReset && !m_bSLEnabled)
 113   {
 114     m_bPowerStateReset = true;
 115     primary->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 116   }
 117
 118   return CCECCommandHandler::HandleFeatureAbort(command);
 119 }
 120
 121 bool CSLCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 122 {
 123   if (m_processor->IsRunning() && m_busDevice->MyLogicalAddressContains(command.destination))
 124   {
 125     CCECBusDevice *device = GetDevice(command.destination);
 126     if (device)
 127       return device->TransmitPhysicalAddress();
 128   }
 129
 130   return false;
 131 }
 132
 133 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
 134 {
 135   if (command.parameters.size == 1 &&
 136       command.parameters[0] == SL_COMMAND_UNKNOWN_01)
 137   {
 138     HandleVendorCommand01(command);
 139     return true;
 140   }
 141   else if (command.parameters.size == 2 &&
 142       command.parameters[0] == SL_COMMAND_POWER_ON)
 143   {
 144     HandleVendorCommandPowerOn(command);
 145     return true;
 146   }
 147   else if (command.parameters.size == 2 &&
 148       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
 149   {
 150     HandleVendorCommandSLConnect(command);
 151     return true;
 152   }
 153   else if (command.parameters.size == 1 &&
 154       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
 155   {
 156     HandleVendorCommandPowerOnStatus(command);
 157     return true;
 158   }
 159
 160   return false;
 161 }
 162
 163 void CSLCommandHandler::HandleVendorCommand01(const cec_command &command)
 164 {
 165   TransmitVendorCommand0205(command.destination, command.initiator);
 166 }
 167
 168 void CSLCommandHandler::TransmitVendorCommand0205(const cec_logical_address iSource, const cec_logical_address iDestination)
 169 {
 170   cec_command response;
 171   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 172   response.PushBack(SL_COMMAND_UNKNOWN_02);
 173   response.PushBack(SL_COMMAND_UNKNOWN_03);
 174
 175   Transmit(response, false);
 176 }
 177
 178 void CSLCommandHandler::HandleVendorCommandPowerOn(const cec_command &command)
 179 {
 180   CCECBusDevice *device = m_processor->GetPrimaryDevice();
 181   if (device)
 182   {
 183     m_bSLEnabled = true;
 184
 185     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON); //XXX
 186     device->TransmitPowerState(command.initiator);
 187     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 188
 189     SetLGDeckStatus();
 190     device->SetActiveSource();
 191     TransmitImageViewOn(device->GetLogicalAddress(), command.initiator);
 192   }
 193 }
 194 void CSLCommandHandler::HandleVendorCommandPowerOnStatus(const cec_command &command)
 195 {
 196   if (command.destination != CECDEVICE_BROADCAST)
 197   {
 198     CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 199     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 200     device->TransmitPowerState(command.initiator);
 201     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 202   }
 203 }
 204
 205 void CSLCommandHandler::HandleVendorCommandSLConnect(const cec_command &command)
 206 {
 207   m_bSLEnabled = true;
 208   SetLGDeckStatus();
 209
 210   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 211
 212   primary->SetActiveSource();
 213   TransmitImageViewOn(primary->GetLogicalAddress(), command.initiator);
 214   TransmitVendorCommand05(primary->GetLogicalAddress(), command.initiator);
 215 }
 216
 217 void CSLCommandHandler::TransmitVendorCommand05(const cec_logical_address iSource, const cec_logical_address iDestination)
 218 {
 219   cec_command response;
 220   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 221   response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
 222   response.PushBack((uint8_t)iSource);
 223   Transmit(response, false);
 224 }
 225
 226 void CSLCommandHandler::SetLGDeckStatus(void)
 227 {
 228   /* LG TVs only route keypresses when the deck status is set to 0x20 */
 229   CCECBusDevice *device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
 230   if (device)
 231     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 232
 233   device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_RECORDING_DEVICE);
 234   if (device)
 235     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 236 }