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_VENDOR_ID 0xa0
  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_bAwaitingReceiveFailed(false),
  52     m_bSLEnabled(false),
  53     m_bSkipNextVendorId(false)
  54 {
  55 }
  56
  57 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
  58 {
  59   if (command.parameters.size == 1 &&
  60       command.parameters[0] == SL_COMMAND_UNKNOWN_01)
  61   {
  62     /* enable SL */
  63     cec_command response;
  64     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND, m_iTransmitTimeout);
  65     response.PushBack(SL_COMMAND_UNKNOWN_02);
  66     response.PushBack(SL_COMMAND_UNKNOWN_03);
  67
  68     Transmit(response);
  69     return true;
  70   }
  71   else if (command.parameters.size == 2 &&
  72       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
  73   {
  74     /* enable SL */
  75     cec_command response;
  76     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND, m_iTransmitTimeout);
  77     response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
  78     response.PushBack(m_busDevice->GetProcessor()->GetLogicalAddresses().primary);
  79     Transmit(response);
  80
  81     /* set deck status for the playback device */
  82     TransmitDeckStatus(command.initiator);
  83     return true;
  84   }
  85   else if (command.parameters.size == 1 &&
  86       command.parameters[0] == SL_COMMAND_REQUEST_VENDOR_ID)
  87   {
  88 //    if (command.destination != CECDEVICE_BROADCAST)
  89 //      m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary]->TransmitPowerState(command.initiator);
  90     return true;
  91   }
  92
  93   return false;
  94 }
  95
  96 void CSLCommandHandler::TransmitDeckStatus(const cec_logical_address iDestination)
  97 {
  98   /* set deck status for the playback device */
  99   CCECBusDevice *primary = m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary];
 100   if (primary->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE || primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
 101   {
 102     ((CCECPlaybackDevice *)primary)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 103     ((CCECPlaybackDevice *)primary)->TransmitDeckStatus(iDestination);
 104   }
 105 }
 106
 107 bool CSLCommandHandler::TransmitLGVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 108 {
 109   cec_command response;
 110   cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_DEVICE_VENDOR_ID, m_iTransmitTimeout);
 111   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 16) & 0xFF));
 112   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 8) & 0xFF));
 113   response.parameters.PushBack((uint8_t) ((uint64_t)CEC_VENDOR_LG & 0xFF));
 114
 115   Transmit(response);
 116   return true;
 117 }
 118
 119 bool CSLCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 120 {
 121   /* imitate LG devices */
 122   CCECBusDevice *device = GetDevice(command.destination);
 123   if (device)
 124     device->SetVendorId(CEC_VENDOR_LG);
 125
 126   return CCECCommandHandler::HandleGiveDeviceVendorId(command);
 127 }
 128
 129 bool CSLCommandHandler::HandleCommand(const cec_command &command)
 130 {
 131   bool bHandled(false);
 132   if (m_busDevice->MyLogicalAddressContains(command.destination) ||
 133       command.destination == CECDEVICE_BROADCAST)
 134   {
 135     switch(command.opcode)
 136     {
 137     case CEC_OPCODE_VENDOR_COMMAND:
 138       bHandled = HandleVendorCommand(command);
 139       break;
 140     case CEC_OPCODE_GIVE_DECK_STATUS:
 141       {
 142         if (command.parameters.size == 1)
 143         {
 144           if (command.parameters[0] == CEC_STATUS_REQUEST_ONCE ||
 145               command.parameters[0] == CEC_STATUS_REQUEST_ON)
 146             TransmitDeckStatus(command.initiator);
 147           else
 148             CCECCommandHandler::HandleCommand(command);
 149         }
 150         bHandled = true;
 151       }
 152       break;
 153     case CEC_OPCODE_FEATURE_ABORT:
 154       {
 155         if (!m_bSkipNextVendorId)
 156         {
 157           m_bSkipNextVendorId = true;
 158           TransmitLGVendorId(m_busDevice->GetProcessor()->GetLogicalAddresses().primary, CECDEVICE_BROADCAST);
 159         }
 160         else
 161         {
 162           m_bSkipNextVendorId = false;
 163         }
 164         m_bSLEnabled = false;
 165       }
 166       bHandled = true;
 167     default:
 168       break;
 169     }
 170   }
 171
 172   if (!bHandled)
 173     bHandled = CCECCommandHandler::HandleCommand(command);
 174
 175   return bHandled;
 176 }
 177
 178 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 179 {
 180   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
 181   m_bAwaitingReceiveFailed = true;
 182 }
 183
 184 bool CSLCommandHandler::HandleReceiveFailed(void)
 185 {
 186   if (m_bAwaitingReceiveFailed)
 187   {
 188     m_bAwaitingReceiveFailed = false;
 189     return false;
 190   }
 191
 192   return true;
 193 }
 194
 195 bool CSLCommandHandler::InitHandler(void)
 196 {
 197   if (m_bSLEnabled)
 198     return true;
 199   m_bSLEnabled = true;
 200
 201   m_busDevice->GetProcessor()->SetStandardLineTimeout(3);
 202   m_busDevice->GetProcessor()->SetRetryLineTimeout(3);
 203
 204   /* increase the number of retries because the tv is keeping the bus busy at times */
 205   m_iTransmitWait    = 2000;
 206   m_iTransmitRetries = 4;
 207   m_iTransmitTimeout = 500;
 208
 209   CCECBusDevice *primary = m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary];
 210   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 211     primary->SetVendorId(CEC_VENDOR_LG, false);
 212
 213   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 214   {
 215     primary->TransmitVendorID(CECDEVICE_TV);
 216     primary->TransmitPhysicalAddress();
 217
 218     cec_command command;
 219     cec_command::Format(command, m_busDevice->GetProcessor()->GetLogicalAddresses().primary, CECDEVICE_TV, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID, m_iTransmitTimeout);
 220     Transmit(command);
 221
 222     /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
 223     m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
 224   }
 225
 226   /* LG devices always return "korean" as language */
 227   cec_menu_language lang;
 228   lang.device = m_busDevice->GetLogicalAddress();
 229   snprintf(lang.language, 4, "eng");
 230   m_busDevice->SetMenuLanguage(lang);
 231
 232   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 233   {
 234     m_busDevice->GetProcessor()->SetActiveSource(m_busDevice->GetProcessor()->GetLogicalAddresses().primary);
 235     /* LG TVs only route keypresses when the deck status is set to 0x20 */
 236     cec_logical_addresses addr = m_busDevice->GetProcessor()->GetLogicalAddresses();
 237     for (uint8_t iPtr = 0; iPtr < 15; iPtr++)
 238     {
 239       CCECBusDevice *device = m_busDevice->GetProcessor()->m_busDevices[iPtr];
 240
 241       if (addr[iPtr])
 242       {
 243         if (device && (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
 244                        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
 245         {
 246           ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 247           TransmitDeckStatus(CECDEVICE_TV);
 248         }
 249       }
 250     }
 251   }
 252
 253   return true;
 254 }