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 #include "../platform/threads.h"
  39
  40 using namespace CEC;
  41
  42 #define SL_COMMAND_UNKNOWN_01           0x01
  43 #define SL_COMMAND_UNKNOWN_02           0x02
  44 #define SL_COMMAND_UNKNOWN_03           0x05
  45
  46 #define SL_COMMAND_REQUEST_POWER_STATUS 0xa0
  47 #define SL_COMMAND_POWER_ON             0x03
  48 #define SL_COMMAND_CONNECT_REQUEST      0x04
  49 #define SL_COMMAND_CONNECT_ACCEPT       0x05
  50
  51 CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
  52     CCECCommandHandler(busDevice),
  53     m_bAwaitingReceiveFailed(false),
  54     m_bSLEnabled(false),
  55     m_bPowerStateReset(false)
  56 {
  57   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  58
  59   /* imitate LG devices */
  60   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  61     primary->SetVendorId(CEC_VENDOR_LG, false);
  62   SetLGDeckStatus();
  63
  64   /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
  65   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
  66     m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
  67
  68   /* LG devices always return "korean" as language */
  69   cec_menu_language lang;
  70   lang.device = m_busDevice->GetLogicalAddress();
  71   snprintf(lang.language, 4, "eng");
  72   m_busDevice->SetMenuLanguage(lang);
  73 }
  74
  75
  76 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
  77 {
  78   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
  79   m_bAwaitingReceiveFailed = true;
  80 }
  81
  82 bool CSLCommandHandler::HandleReceiveFailed(void)
  83 {
  84   if (m_bAwaitingReceiveFailed)
  85   {
  86     m_bAwaitingReceiveFailed = false;
  87     return false;
  88   }
  89
  90   return true;
  91 }
  92
  93 bool CSLCommandHandler::InitHandler(void)
  94 {
  95   if (m_bHandlerInited)
  96     return true;
  97   m_bHandlerInited = true;
  98
  99   /* reply with LGs vendor id */
 100   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 101   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 102     primary->TransmitVendorID(CECDEVICE_TV, false);
 103
 104   primary->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 105   return true;
 106 }
 107
 108 bool CSLCommandHandler::HandleActiveSource(const cec_command &command)
 109 {
 110   if (command.parameters.size == 2)
 111   {
 112     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 113     if (iAddress != m_busDevice->GetPhysicalAddress(false))
 114       m_bSLEnabled = false;
 115     return m_processor->SetActiveSource(iAddress);
 116   }
 117
 118   return true;
 119 }
 120
 121 bool CSLCommandHandler::HandleFeatureAbort(const cec_command &command)
 122 {
 123   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 124   if (primary->GetPowerStatus(false) == CEC_POWER_STATUS_ON && !m_bPowerStateReset && !m_bSLEnabled)
 125   {
 126     m_bPowerStateReset = true;
 127     primary->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 128   }
 129
 130   return CCECCommandHandler::HandleFeatureAbort(command);
 131 }
 132
 133 bool CSLCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 134 {
 135   if (m_processor->IsStarted() && m_busDevice->MyLogicalAddressContains(command.destination))
 136   {
 137     CCECBusDevice *device = GetDevice(command.destination);
 138     if (device)
 139       return device->TransmitPhysicalAddress();
 140   }
 141
 142   return false;
 143 }
 144
 145 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
 146 {
 147   if (command.parameters.size == 1 &&
 148       command.parameters[0] == SL_COMMAND_UNKNOWN_01)
 149   {
 150     HandleVendorCommand01(command);
 151     return true;
 152   }
 153   else if (command.parameters.size == 2 &&
 154       command.parameters[0] == SL_COMMAND_POWER_ON)
 155   {
 156     HandleVendorCommandPowerOn(command);
 157     return true;
 158   }
 159   else if (command.parameters.size == 2 &&
 160       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
 161   {
 162     HandleVendorCommandSLConnect(command);
 163     return true;
 164   }
 165   else if (command.parameters.size == 1 &&
 166       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
 167   {
 168     HandleVendorCommandPowerOnStatus(command);
 169     return true;
 170   }
 171
 172   return false;
 173 }
 174
 175 void CSLCommandHandler::HandleVendorCommand01(const cec_command &command)
 176 {
 177   TransmitVendorCommand0205(command.destination, command.initiator);
 178 }
 179
 180 void CSLCommandHandler::TransmitVendorCommand0205(const cec_logical_address iSource, const cec_logical_address iDestination)
 181 {
 182   cec_command response;
 183   cec_command::Format(response, iSource, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 184   response.PushBack(SL_COMMAND_UNKNOWN_02);
 185   response.PushBack(SL_COMMAND_UNKNOWN_03);
 186
 187   Transmit(response, false);
 188 }
 189
 190 void CSLCommandHandler::HandleVendorCommandPowerOn(const cec_command &command)
 191 {
 192   CCECBusDevice *device = m_processor->GetPrimaryDevice();
 193   if (device)
 194   {
 195     m_bSLEnabled = true;
 196
 197     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON); //XXX
 198     device->TransmitPowerState(command.initiator);
 199     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 200
 201     SetLGDeckStatus();
 202     device->SetActiveSource();
 203     TransmitImageViewOn(device->GetLogicalAddress(), command.initiator);
 204   }
 205 }
 206 void CSLCommandHandler::HandleVendorCommandPowerOnStatus(const cec_command &command)
 207 {
 208   if (command.destination != CECDEVICE_BROADCAST)
 209   {
 210     CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 211     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 212     device->TransmitPowerState(command.initiator);
 213     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 214   }
 215 }
 216
 217 void CSLCommandHandler::HandleVendorCommandSLConnect(const cec_command &command)
 218 {
 219   m_bSLEnabled = true;
 220   SetLGDeckStatus();
 221
 222   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
 223
 224   primary->SetActiveSource();
 225   TransmitImageViewOn(primary->GetLogicalAddress(), command.initiator);
 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)iSource);
 235   Transmit(response, false);
 236 }
 237
 238 void CSLCommandHandler::SetLGDeckStatus(void)
 239 {
 240   /* LG TVs only route keypresses when the deck status is set to 0x20 */
 241   CCECBusDevice *device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
 242   if (device)
 243     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 244
 245   device = m_processor->GetDeviceByType(CEC_DEVICE_TYPE_RECORDING_DEVICE);
 246   if (device)
 247     ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 248 }