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             0x03
  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_bVendorIdSent(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     HandleVendorCommand01(command);
  64     return true;
  65   }
  66   else if (command.parameters.size == 2 &&
  67       command.parameters[0] == SL_COMMAND_POWER_ON)
  68   {
  69     HandleVendorCommand03(command);
  70     return true;
  71   }
  72   else if (command.parameters.size == 2 &&
  73       command.parameters[0] == SL_COMMAND_CONNECT_REQUEST)
  74   {
  75     HandleVendorCommand04(command);
  76     return true;
  77   }
  78   else if (command.parameters.size == 1 &&
  79       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
  80   {
  81     HandleVendorCommandA0(command);
  82     return true;
  83   }
  84
  85   return false;
  86 }
  87
  88 bool CSLCommandHandler::HandleGiveDeckStatus(const cec_command &command)
  89 {
  90   if (command.parameters.size == 1)
  91   {
  92     if (command.parameters[0] == CEC_STATUS_REQUEST_ONCE ||
  93         command.parameters[0] == CEC_STATUS_REQUEST_ON)
  94     {
  95       TransmitDeckStatus(command.initiator);
  96     }
  97     else
  98     {
  99       CCECCommandHandler::HandleGiveDeckStatus(command);
 100     }
 101   }
 102   return true;
 103 }
 104
 105 void CSLCommandHandler::HandleVendorCommand01(const cec_command &command)
 106 {
 107   cec_command response;
 108   cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
 109   response.PushBack(SL_COMMAND_UNKNOWN_02);
 110   response.PushBack(SL_COMMAND_UNKNOWN_03);
 111
 112   Transmit(response);
 113
 114   /* transmit power status */
 115   if (command.destination != CECDEVICE_BROADCAST)
 116     m_processor->m_busDevices[command.destination]->TransmitPowerState(command.initiator);
 117 }
 118
 119 void CSLCommandHandler::HandleVendorCommand03(const cec_command &command)
 120 {
 121   CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 122   if (device)
 123   {
 124     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 125     device->TransmitPowerState(command.initiator);
 126     device->TransmitPhysicalAddress();
 127     TransmitPowerOn(device->GetLogicalAddress(), command.initiator);
 128     if (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
 129         device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
 130     {
 131       ((CCECPlaybackDevice *)device)->TransmitDeckStatus(command.initiator);
 132     }
 133   }
 134 }
 135
 136 void CSLCommandHandler::HandleVendorCommand04(const cec_command &command)
 137 {
 138   cec_command response;
 139   cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
 140   response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
 141   response.PushBack((uint8_t)m_processor->GetLogicalAddresses().primary);
 142   Transmit(response);
 143
 144   TransmitDeckStatus(command.initiator);
 145 }
 146
 147 void CSLCommandHandler::HandleVendorCommandA0(const cec_command &command)
 148 {
 149   if (command.destination != CECDEVICE_BROADCAST)
 150   {
 151     CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 152     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 153     device->TransmitPowerState(command.initiator);
 154     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 155   }
 156 }
 157
 158 void CSLCommandHandler::TransmitDeckStatus(const cec_logical_address iDestination)
 159 {
 160   /* set deck status for the playback device */
 161   CCECBusDevice *primary = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 162   if (primary->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE || primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
 163   {
 164     ((CCECPlaybackDevice *)primary)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 165     ((CCECPlaybackDevice *)primary)->TransmitDeckStatus(iDestination);
 166   }
 167 }
 168
 169 bool CSLCommandHandler::TransmitLGVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 170 {
 171   cec_command response;
 172   cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_DEVICE_VENDOR_ID);
 173   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 16) & 0xFF));
 174   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 8) & 0xFF));
 175   response.parameters.PushBack((uint8_t) ((uint64_t)CEC_VENDOR_LG & 0xFF));
 176
 177   Transmit(response);
 178   return true;
 179 }
 180
 181 bool CSLCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 182 {
 183   /* imitate LG devices */
 184   CCECBusDevice *device = GetDevice(command.destination);
 185   if (device)
 186     device->SetVendorId(CEC_VENDOR_LG);
 187
 188   return CCECCommandHandler::HandleGiveDeviceVendorId(command);
 189 }
 190
 191 bool CSLCommandHandler::HandleCommand(const cec_command &command)
 192 {
 193   bool bHandled(false);
 194
 195   if (m_processor->IsStarted() && m_busDevice->MyLogicalAddressContains(command.destination) ||
 196       command.destination == CECDEVICE_BROADCAST)
 197   {
 198     switch(command.opcode)
 199     {
 200     case CEC_OPCODE_VENDOR_COMMAND:
 201       bHandled = HandleVendorCommand(command);
 202       break;
 203     case CEC_OPCODE_FEATURE_ABORT:
 204       {
 205         if (!m_bVendorIdSent)
 206         {
 207           m_bVendorIdSent = true;
 208           TransmitLGVendorId(m_processor->GetLogicalAddresses().primary, CECDEVICE_BROADCAST);
 209         }
 210         m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary]->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 211         m_bSLEnabled = false;
 212       }
 213       bHandled = true;
 214     default:
 215       break;
 216     }
 217   }
 218
 219   if (!bHandled)
 220     bHandled = CCECCommandHandler::HandleCommand(command);
 221
 222   return bHandled;
 223 }
 224
 225 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 226 {
 227   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
 228   m_bAwaitingReceiveFailed = true;
 229 }
 230
 231 bool CSLCommandHandler::HandleReceiveFailed(void)
 232 {
 233   if (m_bAwaitingReceiveFailed)
 234   {
 235     m_bAwaitingReceiveFailed = false;
 236     return false;
 237   }
 238
 239   return true;
 240 }
 241
 242 bool CSLCommandHandler::InitHandler(void)
 243 {
 244   if (m_bSLEnabled)
 245     return true;
 246   m_bSLEnabled = true;
 247
 248   m_processor->SetStandardLineTimeout(3);
 249   m_processor->SetRetryLineTimeout(3);
 250
 251   /* increase the number of retries because the tv is keeping the bus busy at times */
 252   m_iTransmitWait    = 2000;
 253   m_iTransmitRetries = 4;
 254   m_iTransmitTimeout = 500;
 255
 256   CCECBusDevice *primary = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 257   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 258     primary->SetVendorId(CEC_VENDOR_LG, false);
 259
 260   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 261   {
 262     /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
 263     m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
 264   }
 265
 266   /* LG devices always return "korean" as language */
 267   cec_menu_language lang;
 268   lang.device = m_busDevice->GetLogicalAddress();
 269   snprintf(lang.language, 4, "eng");
 270   m_busDevice->SetMenuLanguage(lang);
 271
 272   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 273   {
 274     m_processor->SetActiveSource(m_processor->GetLogicalAddresses().primary);
 275     /* LG TVs only route keypresses when the deck status is set to 0x20 */
 276     cec_logical_addresses addr = m_processor->GetLogicalAddresses();
 277     for (uint8_t iPtr = 0; iPtr < 15; iPtr++)
 278     {
 279       CCECBusDevice *device = m_processor->m_busDevices[iPtr];
 280
 281       if (addr[iPtr])
 282       {
 283         if (device && (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
 284                        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
 285         {
 286           ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 287         }
 288       }
 289     }
 290   }
 291
 292   return true;
 293 }
 294
 295 bool CSLCommandHandler::TransmitPowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 296 {
 297   if (iDestination != CECDEVICE_BROADCAST &&
 298       iDestination != CECDEVICE_TV &&
 299       m_processor->m_busDevices[iDestination]->GetVendorId(false) == CEC_VENDOR_LG)
 300   {
 301     cec_command command;
 302     cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 303     command.parameters.PushBack((uint8_t)SL_COMMAND_POWER_ON);
 304     command.parameters.PushBack(0x00);
 305     return Transmit(command);
 306   }
 307
 308   return CCECCommandHandler::TransmitPowerOn(iInitiator, iDestination);
 309 }