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 CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
  41     CCECCommandHandler(busDevice),
  42     m_bAwaitingReceiveFailed(false)
  43 {
  44 }
  45
  46 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
  47 {
  48   if (command.parameters.size == 1 &&
  49       command.parameters[0] == 0x01)
  50   {
  51     /* enable SL */
  52     cec_command response;
  53     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND, m_busDevice->GetTransmitTimeout());
  54     response.PushBack(0x02);
  55     response.PushBack(0x05);
  56
  57     m_busDevice->GetProcessor()->Transmit(response);
  58     TransmitLGVendorId(command.destination, command.initiator);
  59     return true;
  60   }
  61   else if (command.parameters.size >= 1 &&
  62       command.parameters[0] == 0x04)
  63   {
  64     CCECBusDevice *primary = m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary];
  65     if (primary->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE || primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
  66     {
  67       ((CCECPlaybackDevice *)primary)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
  68       ((CCECPlaybackDevice *)primary)->TransmitDeckStatus(command.initiator);
  69     }
  70     return true;
  71   }
  72   else if (command.parameters.size == 1 &&
  73       command.parameters[0] == 0xa0)
  74   {
  75     TransmitLGVendorId(command.destination, command.initiator);
  76     return true;
  77   }
  78
  79   return false;
  80 }
  81
  82 bool CSLCommandHandler::TransmitLGVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination)
  83 {
  84   cec_command response;
  85   cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_VENDOR_COMMAND, m_busDevice->GetTransmitTimeout());
  86   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 16) & 0xFF));
  87   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 8) & 0xFF));
  88   response.parameters.PushBack((uint8_t) ((uint64_t)CEC_VENDOR_LG & 0xFF));
  89
  90   return m_busDevice->GetProcessor()->Transmit(response);
  91 }
  92
  93 bool CSLCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
  94 {
  95   /* imitate LG devices */
  96   CCECBusDevice *device = GetDevice(command.destination);
  97   if (device)
  98     device->SetVendorId(CEC_VENDOR_LG);
  99
 100   return CCECCommandHandler::HandleGiveDeviceVendorId(command);
 101 }
 102
 103 bool CSLCommandHandler::HandleCommand(const cec_command &command)
 104 {
 105   bool bHandled(false);
 106   if (m_busDevice->MyLogicalAddressContains(command.destination))
 107   {
 108     switch(command.opcode)
 109     {
 110     case CEC_OPCODE_VENDOR_COMMAND:
 111       bHandled = HandleVendorCommand(command);
 112       break;
 113     case CEC_OPCODE_DEVICE_VENDOR_ID:
 114       {
 115         if (command.initiator == m_busDevice->GetLogicalAddress())
 116         {
 117           TransmitLGVendorId(m_busDevice->GetProcessor()->GetLogicalAddresses().primary, command.initiator);
 118           bHandled = true;
 119         }
 120       }
 121       break;
 122     default:
 123       break;
 124     }
 125   }
 126
 127   if (!bHandled)
 128     bHandled = CCECCommandHandler::HandleCommand(command);
 129
 130   return bHandled;
 131 }
 132
 133 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 134 {
 135   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
 136   m_bAwaitingReceiveFailed = true;
 137 }
 138
 139 bool CSLCommandHandler::HandleReceiveFailed(void)
 140 {
 141   if (m_bAwaitingReceiveFailed)
 142   {
 143     m_bAwaitingReceiveFailed = false;
 144     return false;
 145   }
 146
 147   return true;
 148 }
 149
 150 bool CSLCommandHandler::InitHandler(void)
 151 {
 152   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
 153     return true;
 154
 155   /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
 156   m_busDevice->GetProcessor()->m_busDevices[CECDEVICE_TV]->SetCecVersion(CEC_VERSION_1_3A);
 157
 158   /* LG TVs only route keypresses when the deck status is set to 0x20 */
 159   cec_logical_addresses addr = m_busDevice->GetProcessor()->GetLogicalAddresses();
 160   for (uint8_t iPtr = 0; iPtr < 15; iPtr++)
 161   {
 162     CCECBusDevice *device = m_busDevice->GetProcessor()->m_busDevices[iPtr];
 163
 164     /* increase the transmit timeout because the tv is keeping the bus busy at times */
 165     device->SetTransmitTimeout(3000);
 166     if (addr[iPtr])
 167     {
 168       if (device && (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
 169                      device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
 170       {
 171         ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 172         ((CCECPlaybackDevice *)device)->TransmitDeckStatus(CECDEVICE_TV);
 173       }
 174     }
 175   }
 176   return true;
 177 }