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_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_CONNECT_REQUEST)
  68   {
  69     HandleVendorCommand04(command);
  70     return true;
  71   }
  72   else if (command.parameters.size == 1 &&
  73       command.parameters[0] == SL_COMMAND_REQUEST_POWER_STATUS)
  74   {
  75     HandleVendorCommandA0(command);
  76     return true;
  77   }
  78
  79   return false;
  80 }
  81
  82 bool CSLCommandHandler::HandleGiveDeckStatus(const cec_command &command)
  83 {
  84   if (command.parameters.size == 1)
  85   {
  86     if (command.parameters[0] == CEC_STATUS_REQUEST_ONCE ||
  87         command.parameters[0] == CEC_STATUS_REQUEST_ON)
  88     {
  89       TransmitDeckStatus(command.initiator);
  90     }
  91     else
  92     {
  93       CCECCommandHandler::HandleGiveDeckStatus(command);
  94     }
  95   }
  96   return true;
  97 }
  98
  99 void CSLCommandHandler::HandleVendorCommand01(const cec_command &command)
 100 {
 101   cec_command response;
 102   cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
 103   response.PushBack(SL_COMMAND_UNKNOWN_02);
 104   response.PushBack(SL_COMMAND_UNKNOWN_03);
 105
 106   Transmit(response);
 107
 108   /* transmit power status */
 109   if (command.destination != CECDEVICE_BROADCAST)
 110     m_processor->m_busDevices[command.destination]->TransmitPowerState(command.initiator);
 111 }
 112
 113 void CSLCommandHandler::HandleVendorCommand04(const cec_command &command)
 114 {
 115   cec_command response;
 116   cec_command::Format(response, command.destination, command.initiator, CEC_OPCODE_VENDOR_COMMAND);
 117   response.PushBack(SL_COMMAND_CONNECT_ACCEPT);
 118   response.PushBack((uint8_t)m_processor->GetLogicalAddresses().primary);
 119   Transmit(response);
 120
 121   TransmitDeckStatus(command.initiator);
 122 }
 123
 124 void CSLCommandHandler::HandleVendorCommandA0(const cec_command &command)
 125 {
 126   if (command.destination != CECDEVICE_BROADCAST)
 127   {
 128     CCECBusDevice *device = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 129     device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 130     device->TransmitPowerState(command.initiator);
 131     device->SetPowerStatus(CEC_POWER_STATUS_ON);
 132   }
 133 }
 134
 135 void CSLCommandHandler::TransmitDeckStatus(const cec_logical_address iDestination)
 136 {
 137   /* set deck status for the playback device */
 138   CCECBusDevice *primary = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 139   if (primary->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE || primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
 140   {
 141     ((CCECPlaybackDevice *)primary)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 142     ((CCECPlaybackDevice *)primary)->TransmitDeckStatus(iDestination);
 143   }
 144 }
 145
 146 bool CSLCommandHandler::TransmitLGVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 147 {
 148   cec_command response;
 149   cec_command::Format(response, iInitiator, iDestination, CEC_OPCODE_DEVICE_VENDOR_ID);
 150   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 16) & 0xFF));
 151   response.parameters.PushBack((uint8_t) (((uint64_t)CEC_VENDOR_LG >> 8) & 0xFF));
 152   response.parameters.PushBack((uint8_t) ((uint64_t)CEC_VENDOR_LG & 0xFF));
 153
 154   Transmit(response);
 155   return true;
 156 }
 157
 158 bool CSLCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 159 {
 160   /* imitate LG devices */
 161   CCECBusDevice *device = GetDevice(command.destination);
 162   if (device)
 163     device->SetVendorId(CEC_VENDOR_LG);
 164
 165   return CCECCommandHandler::HandleGiveDeviceVendorId(command);
 166 }
 167
 168 bool CSLCommandHandler::HandleCommand(const cec_command &command)
 169 {
 170   bool bHandled(false);
 171
 172   if (m_processor->IsStarted() && m_busDevice->MyLogicalAddressContains(command.destination) ||
 173       command.destination == CECDEVICE_BROADCAST)
 174   {
 175     switch(command.opcode)
 176     {
 177     case CEC_OPCODE_VENDOR_COMMAND:
 178       bHandled = HandleVendorCommand(command);
 179       break;
 180     case CEC_OPCODE_FEATURE_ABORT:
 181       {
 182         if (!m_bVendorIdSent)
 183         {
 184           m_bVendorIdSent = true;
 185           TransmitLGVendorId(m_processor->GetLogicalAddresses().primary, CECDEVICE_BROADCAST);
 186         }
 187         m_bSLEnabled = false;
 188       }
 189       bHandled = true;
 190     default:
 191       break;
 192     }
 193   }
 194
 195   if (!bHandled)
 196     bHandled = CCECCommandHandler::HandleCommand(command);
 197
 198   return bHandled;
 199 }
 200
 201 void CSLCommandHandler::HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 202 {
 203   CCECCommandHandler::HandlePoll(iInitiator, iDestination);
 204   m_bAwaitingReceiveFailed = true;
 205 }
 206
 207 bool CSLCommandHandler::HandleReceiveFailed(void)
 208 {
 209   if (m_bAwaitingReceiveFailed)
 210   {
 211     m_bAwaitingReceiveFailed = false;
 212     return false;
 213   }
 214
 215   return true;
 216 }
 217
 218 bool CSLCommandHandler::InitHandler(void)
 219 {
 220   if (m_bSLEnabled)
 221     return true;
 222   m_bSLEnabled = true;
 223
 224   m_processor->SetStandardLineTimeout(3);
 225   m_processor->SetRetryLineTimeout(3);
 226
 227   /* increase the number of retries because the tv is keeping the bus busy at times */
 228   m_iTransmitWait    = 2000;
 229   m_iTransmitRetries = 4;
 230   m_iTransmitTimeout = 500;
 231
 232   CCECBusDevice *primary = m_processor->m_busDevices[m_processor->GetLogicalAddresses().primary];
 233   if (m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
 234     primary->SetVendorId(CEC_VENDOR_LG, false);
 235
 236   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 237   {
 238     primary->TransmitVendorID(CECDEVICE_TV);
 239     primary->TransmitPhysicalAddress();
 240
 241     /* LG TVs don't always reply to CEC version requests, so just set it to 1.3a */
 242     m_busDevice->SetCecVersion(CEC_VERSION_1_3A);
 243   }
 244
 245   /* LG devices always return "korean" as language */
 246   cec_menu_language lang;
 247   lang.device = m_busDevice->GetLogicalAddress();
 248   snprintf(lang.language, 4, "eng");
 249   m_busDevice->SetMenuLanguage(lang);
 250
 251   if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
 252   {
 253     m_processor->SetActiveSource(m_processor->GetLogicalAddresses().primary);
 254     /* LG TVs only route keypresses when the deck status is set to 0x20 */
 255     cec_logical_addresses addr = m_processor->GetLogicalAddresses();
 256     for (uint8_t iPtr = 0; iPtr < 15; iPtr++)
 257     {
 258       CCECBusDevice *device = m_processor->m_busDevices[iPtr];
 259
 260       if (addr[iPtr])
 261       {
 262         if (device && (device->GetType() == CEC_DEVICE_TYPE_PLAYBACK_DEVICE ||
 263                        device->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE))
 264         {
 265           ((CCECPlaybackDevice *)device)->SetDeckStatus(CEC_DECK_INFO_OTHER_STATUS_LG);
 266           TransmitDeckStatus(CECDEVICE_TV);
 267         }
 268       }
 269     }
 270   }
 271
 272   return true;
 273 }
 274
 275 bool CSLCommandHandler::TransmitPowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 276 {
 277   if (iDestination != CECDEVICE_BROADCAST &&
 278       m_processor->m_busDevices[iDestination]->GetVendorId(false) == CEC_VENDOR_LG);
 279   {
 280     cec_command command;
 281     cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_VENDOR_COMMAND);
 282     command.parameters.PushBack((uint8_t) (((uint16_t)SL_COMMAND_POWER_ON >> 8) & 0xFF));
 283     command.parameters.PushBack((uint8_t) ((uint16_t)SL_COMMAND_POWER_ON & 0xFF));
 284     return Transmit(command);
 285   }
 286
 287   return CCECCommandHandler::TransmitPowerOn(iInitiator, iDestination);
 288 }