VLCommandHandler.cpp

   1 /*
   2  * This file is part of the libCEC(R) library.
   3  *
   4  * libCEC(R) is Copyright (C) 2011-2012 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 "env.h"
  34 #include "VLCommandHandler.h"
  35
  36 #include "lib/devices/CECBusDevice.h"
  37 #include "lib/devices/CECPlaybackDevice.h"
  38 #include "lib/devices/CECTV.h"
  39 #include "lib/CECProcessor.h"
  40 #include "lib/LibCEC.h"
  41 #include "lib/CECClient.h"
  42
  43 #define VL_POWER_CHANGE 0x20
  44 #define VL_POWERED_UP   0x00
  45 #define VL_POWERED_DOWN 0x01
  46 #define VL_UNKNOWN1     0x06
  47
  48 using namespace CEC;
  49 using namespace PLATFORM;
  50
  51 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  52 #define ToString(p) LIB_CEC->ToString(p)
  53
  54 // wait this amount of ms before trying to switch sources after receiving the message from the TV that it's powered on
  55 #define SOURCE_SWITCH_DELAY_MS 3000
  56
  57 CVLCommandHandler::CVLCommandHandler(CCECBusDevice *busDevice,
  58                                      int32_t iTransmitTimeout /* = CEC_DEFAULT_TRANSMIT_TIMEOUT */,
  59                                      int32_t iTransmitWait /* = CEC_DEFAULT_TRANSMIT_WAIT */,
  60                                      int8_t iTransmitRetries /* = CEC_DEFAULT_TRANSMIT_RETRIES */,
  61                                      int64_t iActiveSourcePending /* = 0 */) :
  62     CCECCommandHandler(busDevice, iTransmitTimeout, iTransmitWait, iTransmitRetries, iActiveSourcePending),
  63     m_iPowerUpEventReceived(0),
  64     m_bCapabilitiesSent(false)
  65 {
  66   m_vendorId = CEC_VENDOR_PANASONIC;
  67 }
  68
  69 bool CVLCommandHandler::InitHandler(void)
  70 {
  71   CCECBusDevice *primary = m_processor->GetPrimaryDevice();
  72   if (primary && primary->GetLogicalAddress() != CECDEVICE_UNREGISTERED)
  73   {
  74     /* use the VL commandhandler for the primary device that is handled by libCEC */
  75     if (m_busDevice->GetLogicalAddress() == CECDEVICE_TV)
  76     {
  77       if (primary && m_busDevice->GetLogicalAddress() != primary->GetLogicalAddress())
  78       {
  79         primary->SetVendorId(CEC_VENDOR_PANASONIC);
  80         primary->ReplaceHandler(false);
  81       }
  82     }
  83
  84     if (primary->GetType() == CEC_DEVICE_TYPE_RECORDING_DEVICE)
  85       return m_processor->GetPrimaryClient()->ChangeDeviceType(CEC_DEVICE_TYPE_RECORDING_DEVICE, CEC_DEVICE_TYPE_PLAYBACK_DEVICE);
  86   }
  87
  88   return CCECCommandHandler::InitHandler();
  89 }
  90
  91 int CVLCommandHandler::HandleDeviceVendorCommandWithId(const cec_command &command)
  92 {
  93   if (!m_processor->IsHandledByLibCEC(command.destination))
  94     return CEC_ABORT_REASON_INVALID_OPERAND;
  95
  96   if (command.parameters[0] != 0x00 ||
  97       command.parameters[1] != 0x80 ||
  98       command.parameters[2] != 0x45)
  99     return CEC_ABORT_REASON_INVALID_OPERAND;
 100
 101   // XXX this is also sent when the TV is powered off
 102 #if 0
 103   if (command.initiator == CECDEVICE_TV &&
 104       command.parameters.At(3) == VL_UNKNOWN1)
 105   {
 106     // set the power up event time
 107     {
 108       CLockObject lock(m_mutex);
 109       if (m_iPowerUpEventReceived == 0)
 110         m_iPowerUpEventReceived = GetTimeMs();
 111     }
 112     // mark the TV as powered on
 113     m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_ON);
 114   }
 115   else
 116 #endif
 117     if (command.initiator == CECDEVICE_TV &&
 118       command.destination == CECDEVICE_BROADCAST &&
 119       command.parameters.At(3) == VL_POWER_CHANGE)
 120   {
 121     if (command.parameters.At(4) == VL_POWERED_UP)
 122     {
 123       // set the power up event time
 124       {
 125         CLockObject lock(m_mutex);
 126         if (m_iPowerUpEventReceived == 0)
 127           m_iPowerUpEventReceived = GetTimeMs();
 128       }
 129       // mark the TV as powered on
 130       m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_ON);
 131
 132       // send capabilties
 133       SendVendorCommandCapabilities(m_processor->GetLogicalAddress(), command.initiator);
 134
 135       // reactivate the source, so the tv switches channels
 136       if (m_processor->IsActiveSource(m_processor->GetLogicalAddress()))
 137         m_processor->GetDevice(m_processor->GetLogicalAddress())->TransmitActiveSource(false);
 138     }
 139     else if (command.parameters.At(4) == VL_POWERED_DOWN)
 140     {
 141       // reset the power up event time
 142       {
 143         CLockObject lock(m_mutex);
 144         m_iPowerUpEventReceived = 0;
 145       }
 146       // mark the TV as powered off
 147       m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 148     }
 149     else
 150       LIB_CEC->AddLog(CEC_LOG_DEBUG, "skipping unknown vendor command");
 151
 152     return COMMAND_HANDLED;
 153   }
 154
 155   return CCECCommandHandler::HandleDeviceVendorCommandWithId(command);
 156 }
 157
 158 bool CVLCommandHandler::PowerUpEventReceived(void)
 159 {
 160   bool bPowerUpEventReceived(true);
 161
 162   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
 163   {
 164     CCECBusDevice* tv = m_processor->GetTV();
 165     if (tv && tv->GetStatus() != CEC_DEVICE_STATUS_PRESENT)
 166       return true;
 167
 168     // get the status from the TV
 169     if (tv && tv->GetCurrentVendorId() == CEC_VENDOR_PANASONIC)
 170     {
 171       CVLCommandHandler *handler = static_cast<CVLCommandHandler *>(tv->GetHandler());
 172       bPowerUpEventReceived = handler ? handler->PowerUpEventReceived() : false;
 173       tv->MarkHandlerReady();
 174     }
 175   }
 176   else
 177   {
 178     // get the current status
 179     {
 180       CLockObject lock(m_mutex);
 181       bPowerUpEventReceived = m_iPowerUpEventReceived > 0 &&
 182                               GetTimeMs() - m_iPowerUpEventReceived > SOURCE_SWITCH_DELAY_MS;
 183     }
 184
 185     // if we didn't receive the event, check if the TV is already marked as powered on
 186     if (!bPowerUpEventReceived && m_busDevice->GetCurrentPowerStatus() == CEC_POWER_STATUS_ON)
 187     {
 188       CLockObject lock(m_mutex);
 189       m_iPowerUpEventReceived = GetTimeMs();
 190       bPowerUpEventReceived = true;
 191     }
 192   }
 193
 194   return bPowerUpEventReceived;
 195 }
 196
 197 int CVLCommandHandler::HandleStandby(const cec_command &command)
 198 {
 199   // reset the power up event time
 200   {
 201     CLockObject lock(m_mutex);
 202     m_iPowerUpEventReceived = 0;
 203     m_bCapabilitiesSent = false;
 204   }
 205
 206   return CCECCommandHandler::HandleStandby(command);
 207 }
 208
 209 void CVLCommandHandler::VendorPreActivateSourceHook(void)
 210 {
 211   bool bTransmit(false);
 212   {
 213     CLockObject lock(m_mutex);
 214     bTransmit = !m_bCapabilitiesSent;
 215   }
 216   if (bTransmit)
 217     SendVendorCommandCapabilities(m_processor->GetLogicalAddress(), CECDEVICE_TV);
 218 }
 219
 220 void CVLCommandHandler::SendVendorCommandCapabilities(const cec_logical_address initiator, const cec_logical_address destination)
 221 {
 222   if (PowerUpEventReceived())
 223   {
 224     cec_command response;
 225     cec_command::Format(response, initiator, destination, CEC_OPCODE_VENDOR_COMMAND);
 226     uint8_t iResponseData[] = {0x10, 0x02, 0xFF, 0xFF, 0x00, 0x05, 0x05, 0x45, 0x55, 0x5c, 0x58, 0x32};
 227     response.PushArray(12, iResponseData);
 228
 229     if (Transmit(response, false, true))
 230     {
 231       CLockObject lock(m_mutex);
 232       m_bCapabilitiesSent = true;
 233     }
 234   }
 235 }
 236
 237 int CVLCommandHandler::HandleVendorCommand(const cec_command &command)
 238 {
 239   // some vendor command voodoo that will enable more buttons on the remote
 240   if (command.parameters.size == 3 &&
 241       command.parameters[0] == 0x10 &&
 242       command.parameters[1] == 0x01 &&
 243       command.parameters[2] == 0x05 &&
 244       m_processor->IsHandledByLibCEC(command.destination))
 245   {
 246     SendVendorCommandCapabilities(m_processor->GetLogicalAddress(), command.initiator);
 247     return COMMAND_HANDLED;
 248   }
 249
 250   return CEC_ABORT_REASON_INVALID_OPERAND;
 251 }
 252
 253 bool CVLCommandHandler::SourceSwitchAllowed(void)
 254 {
 255   if (!PowerUpEventReceived())
 256     TransmitRequestPowerStatus(m_processor->GetPrimaryDevice()->GetLogicalAddress(), CECDEVICE_TV, false);
 257
 258   return PowerUpEventReceived();
 259 }
 260
 261 int CVLCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 262 {
 263   if (command.initiator == CECDEVICE_TV)
 264   {
 265     // set the power up event time
 266     {
 267       CLockObject lock(m_mutex);
 268       if (m_iPowerUpEventReceived == 0)
 269         m_iPowerUpEventReceived = GetTimeMs();
 270     }
 271     // mark the TV as powered on
 272     m_processor->GetTV()->SetPowerStatus(CEC_POWER_STATUS_ON);
 273   }
 274
 275   return CCECCommandHandler::HandleSystemAudioModeRequest(command);
 276 }
 277
 278 int CVLCommandHandler::HandleReportPowerStatus(const cec_command &command)
 279 {
 280   if (command.initiator == m_busDevice->GetLogicalAddress() &&
 281       command.parameters.size == 1 &&
 282       (cec_power_status)command.parameters[0] == CEC_POWER_STATUS_ON)
 283   {
 284     CLockObject lock(m_mutex);
 285     if (m_iPowerUpEventReceived == 0)
 286       m_iPowerUpEventReceived = GetTimeMs();
 287   }
 288
 289   return CCECCommandHandler::HandleReportPowerStatus(command);
 290 }