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_POWER_STATUS 0xa0
  46 #define SL_COMMAND_POWER_ON             0x0300
  47 #define SL_COMMAND_CONNECT_REQUEST      0x04
  48 #define SL_COMMAND_CONNECT_ACCEPT       0x05
  49
  50 CSLCommandHandler::CSLCommandHandler(CCECBusDevice *busDevice) :
  51     CCECCommandHandler(busDevice),
  52     m_bAwaitingReceiveFailed(false),
  53     m_bSLEnabled(false),
  54     m_bSkipNextVendorId(false)
  55 {
  56 }
  57
  58 bool CSLCommandHandler::HandleVendorCommand(const cec_command &command)
  59 {
  60   if (command.parameters.size == 1 &&
  61       command.parameters[0] == SL_COMMAND_UNKNOWN_01)
  62   {
  63     /* enable SL */
  64     cec_command response;
  65     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
  66     response.PushBack(SL_COMMAND_UNKNOWN_02);
  67     response.PushBack(SL_COMMAND_UNKNOWN_03);
  68
  69     Transmit(response);
  70     return true;
  71   }
  72   else if (command.parameters.size == 2 &&
  73       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
  74   {
  75     /* enable SL */
  76     cec_command response;
  77     cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
  78     response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
  79     response.PushBack((uint8_t)m_busDevice->GetProcessor()->GetLogicalAddresses().primary);
  80     Transmit(response);
  81
  82     /* set deck status for the playback device */
  83     TransmitDeckStatus(command.initiator);
  84     return true;
  85   }
  86   else if (command.parameters.size == 1 &&
  87       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
  88   {
  89     if (command.destination != CECDEVICE_BROADCAST)
  90       m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary]->TransmitPowerState(command.initiator);
  91     return true;
  92   }
  93
  94   return false;
  95 }
  96
  97 void CSLCommandHandler::TransmitDeckStatus(const cec_logical_address iDestination)
  98 {
  99   /* set deck status for the playback device */
 100   CCECBusDevice *primary = m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary];
 101   if (primary->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE || primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
 102   {
 103     ((CCECPlaybackDevice *)primary)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 104     ((CCECPlaybackDevice *)primary)->TransmitDeckStatus(iDestination);
 105   }
 106 }
 107
 108 bool CSLCommandHandler::TransmitLGVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 109 {
 110   cec_command response;
 111   cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_DEVICE_VENDOR_ID);
 112   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 16) & 0xFF));
 113   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 8) & 0xFF));
 114   response.parameters.PushBack((uint8_t) ((uint64_t)CEC_VENDOR_LG & 0xFF));
 115
 116   Transmit(response);
 117   return true;
 118 }
 119
 120 bool CSLCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 121 {
 122   /* imitate LG devices */
 123   CCECBusDevice *device = GetDevice(command.destination);
 124   if (device)
 125     device->SetVendorId(CEC_VENDOR_LG);
 126
 127   return CCECCommandHandler::HandleGiveDeviceVendorId(command);
 128 }
 129
 130 bool CSLCommandHandler::HandleCommand(const cec_command &command)
 131 {
 132   bool bHandled(false);
 133   if (m_busDevice->MyLogicalAddressContains(command.destination) ||
 134       command.destination == CECDEVICE_BROADCAST)
 135   {
 136     switch(command.opcode)
 137     {
 138     case CEC_OPCODE_VENDOR_COMMAND:
 139       bHandled = HandleVendorCommand(command);
 140       break;
 141     case CEC_OPCODE_GIVE_DECK_STATUS:
 142       {
 143         if (command.parameters.size == 1)
 144         {
 145           if (command.parameters[0] == CEC_STATUS_REQUEST_ONCE ||
 146               command.parameters[0] == CEC_STATUS_REQUEST_ON)
 147             TransmitDeckStatus(command.initiator);
 148           else
 149             CCECCommandHandler::HandleCommand(command);
 150         }
 151         bHandled = true;
 152       }
 153       break;
 154     case CEC_OPCODE_FEATURE_ABORT:
 155       {
 156         if (!m_bSkipNextVendorId)
 157         {
 158           m_bSkipNextVendorId = true;
 159           TransmitLGVendorId(m_busDevice->GetProcessor()->GetLogicalAddresses().primary, CECDEVICE_BROADCAST);
 160         }
 161         else
 162         {
 163           m_bSkipNextVendorId = false;
 164         }
 165         m_bSLEnabled = false;
 166       }
 167       bHandled = true;
 168     default:
 169       break;
 170     }
 171   }
 172
 173   if (!bHandled)
 174     bHandled = CCECCommandHandler::HandleCommand(command);
 175
 176   return bHandled;
 177 }
 178
 179 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 180 {
 181   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
 182   m_bAwaitingReceiveFailed = true;
 183 }
 184
 185 bool CSLCommandHandler::HandleReceiveFailed(void)
 186 {
 187   if (m_bAwaitingReceiveFailed)
 188   {
 189     m_bAwaitingReceiveFailed = false;
 190     return false;
 191   }
 192
 193   return true;
 194 }
 195
 196 bool CSLCommandHandler::InitHandler(void)
 197 {
 198   if (m_bSLEnabled)
 199     return true;
 200   m_bSLEnabled = true;
 201
 202   m_busDevice->GetProcessor()->SetStandardLineTimeout(3);
 203   m_busDevice->GetProcessor()->SetRetryLineTimeout(3);
 204
 205   /* increase the number of retries because the tv is keeping the bus busy at times */
 206   m_iTransmitWait    = 2000;
 207   m_iTransmitRetries = 4;
 208   m_iTransmitTimeout = 500;
 209
 210   CCECBusDevice *primary = m_busDevice->GetProcessor()->m_busDevices[m_busDevice->GetProcessor()->GetLogicalAddresses().primary];
 211   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 212     primary->SetVendorId(CEC_VENDOR_LG, false);
 213
 214   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 215   {
 216     primary->TransmitVendorID(CECDEVICE_TV);
 217     primary->TransmitPhysicalAddress();
 218
 219     cec_command command;
 220     cec_command::Format(command, m_busDevice->GetProcessor()->GetLogicalAddresses().primary, CECDEVICE_TV, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 221     Transmit(command);
 222
 223     /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
 224     m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
 225   }
 226
 227   /* LG devices always return "korean" as language */
 228   cec_menu_language lang;
 229   lang.device = m_busDevice->GetLogicalAddress();
 230   snprintf(lang.language, 4, "eng");
 231   m_busDevice->SetMenuLanguage(lang);
 232
 233   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 234   {
 235     m_busDevice->GetProcessor()->SetActiveSource(m_busDevice->GetProcessor()->GetLogicalAddresses().primary);
 236     /* LG TVs only route keypresses when the deck status is set to 0x20 */
 237     cec_logical_addresses addr = m_busDevice->GetProcessor()->GetLogicalAddresses();
 238     for (uint8_t iPtr = 0; iPtr < 15; iPtr++)
 239     {
 240       CCECBusDevice *device = m_busDevice->GetProcessor()->m_busDevices[iPtr];
 241
 242       if (addr[iPtr])
 243       {
 244         if (device && (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
 245                        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
 246         {
 247           ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 248           TransmitDeckStatus(CECDEVICE_TV);
 249         }
 250       }
 251     }
 252   }
 253
 254   return true;
 255 }
 256
 257
 258 bool CSLCommandHandler::TransmitPowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 259 {
 260   cec_command command;
 261   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 262   command.parameters.PushBack((uint8_t) (((uint16_t)SL_COMMAND_POWER_ON >> 8) & 0xFF));
 263   command.parameters.PushBack((uint8_t) ((uint16_t)SL_COMMAND_POWER_ON & 0xFF));
 264
 265   return Transmit(command);
 266 }