src/lib/CECProcessor.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 "CECProcessor.h"
  34
  35 #include "AdapterCommunication.h"
  36 #include "devices/CECBusDevice.h"
  37 #include "LibCEC.h"
  38 #include "util/StdString.h"
  39 #include "platform/timeutils.h"
  40
  41 using namespace CEC;
  42 using namespace std;
  43
  44 CCECProcessor::CCECProcessor(CLibCEC *controller, CAdapterCommunication *serComm, const char *strDeviceName, cec_logical_address iLogicalAddress /* = CECDEVICE_PLAYBACKDEVICE1 */, uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS*/) :
  45     m_iLogicalAddress(iLogicalAddress),
  46     m_strDeviceName(strDeviceName),
  47     m_communication(serComm),
  48     m_controller(controller),
  49     m_bMonitor(false)
  50 {
  51   for (int iPtr = 0; iPtr < 16; iPtr++)
  52     m_busDevices[iPtr] = new CCECBusDevice(this, (cec_logical_address) iPtr, iPtr == iLogicalAddress ? iPhysicalAddress : 0);
  53 }
  54
  55 CCECProcessor::~CCECProcessor(void)
  56 {
  57   StopThread();
  58   m_communication = NULL;
  59   m_controller = NULL;
  60   for (unsigned int iPtr = 0; iPtr < 16; iPtr++)
  61     delete m_busDevices[iPtr];
  62 }
  63
  64 bool CCECProcessor::Start(void)
  65 {
  66   if (!m_communication || !m_communication->IsOpen())
  67   {
  68     m_controller->AddLog(CEC_LOG_ERROR, "connection is closed");
  69     return false;
  70   }
  71
  72   if (!SetLogicalAddress(m_iLogicalAddress))
  73   {
  74     m_controller->AddLog(CEC_LOG_ERROR, "could not set the logical address");
  75     return false;
  76   }
  77
  78   if (CreateThread())
  79     return true;
  80   else
  81     m_controller->AddLog(CEC_LOG_ERROR, "could not create a processor thread");
  82
  83   return false;
  84 }
  85
  86 void *CCECProcessor::Process(void)
  87 {
  88   m_controller->AddLog(CEC_LOG_DEBUG, "processor thread started");
  89
  90   cec_command command;
  91   CCECAdapterMessage msg;
  92
  93   while (!IsStopped())
  94   {
  95     bool bParseFrame(false);
  96     command.clear();
  97     msg.clear();
  98
  99     {
 100       CLockObject lock(&m_mutex);
 101       if (m_communication->IsOpen() && m_communication->Read(msg, 50))
 102         bParseFrame = ParseMessage(msg);
 103
 104       bParseFrame &= !IsStopped();
 105       if (bParseFrame)
 106         command = m_currentframe;
 107     }
 108
 109     if (bParseFrame)
 110       ParseCommand(command);
 111
 112     m_controller->CheckKeypressTimeout();
 113
 114     for (unsigned int iDevicePtr = 0; iDevicePtr < 16; iDevicePtr++)
 115       m_busDevices[iDevicePtr]->PollVendorId();
 116
 117     if (!IsStopped())
 118       Sleep(5);
 119   }
 120
 121   return NULL;
 122 }
 123
 124 bool CCECProcessor::SetActiveView(void)
 125 {
 126   if (!IsRunning())
 127     return false;
 128
 129   return m_busDevices[m_iLogicalAddress]->BroadcastActiveView();
 130 }
 131
 132 bool CCECProcessor::SetInactiveView(void)
 133 {
 134   if (!IsRunning())
 135     return false;
 136
 137   return m_busDevices[m_iLogicalAddress]->BroadcastInactiveView();
 138 }
 139
 140 void CCECProcessor::LogOutput(const cec_command &data)
 141 {
 142   CStdString strTx;
 143   strTx.Format("<< %02x:%02x", ((uint8_t)data.initiator << 4) + (uint8_t)data.destination, (uint8_t)data.opcode);
 144
 145   for (uint8_t iPtr = 0; iPtr < data.parameters.size; iPtr++)
 146     strTx.AppendFormat(":%02x", data.parameters[iPtr]);
 147   m_controller->AddLog(CEC_LOG_TRAFFIC, strTx.c_str());
 148 }
 149
 150 bool CCECProcessor::SetLogicalAddress(cec_logical_address iLogicalAddress)
 151 {
 152   CStdString strLog;
 153   strLog.Format("<< setting logical address to %1x", iLogicalAddress);
 154   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 155
 156   m_iLogicalAddress = iLogicalAddress;
 157   return m_communication && m_communication->SetAckMask(0x1 << (uint8_t)m_iLogicalAddress);
 158 }
 159
 160 bool CCECProcessor::SetPhysicalAddress(uint16_t iPhysicalAddress)
 161 {
 162   m_busDevices[m_iLogicalAddress]->SetPhysicalAddress(iPhysicalAddress);
 163   return m_busDevices[m_iLogicalAddress]->BroadcastActiveView();
 164 }
 165
 166 bool CCECProcessor::SwitchMonitoring(bool bEnable)
 167 {
 168   CStdString strLog;
 169   strLog.Format("== %s monitoring mode ==", bEnable ? "enabling" : "disabling");
 170   m_controller->AddLog(CEC_LOG_NOTICE, strLog.c_str());
 171
 172   m_bMonitor = bEnable;
 173   if (bEnable)
 174     return m_communication && m_communication->SetAckMask(0);
 175   else
 176     return m_communication && m_communication->SetAckMask(0x1 << (uint8_t)m_iLogicalAddress);
 177 }
 178
 179 bool CCECProcessor::Transmit(const cec_command &data, bool bWaitForAck /* = true */)
 180 {
 181   bool bReturn(false);
 182   LogOutput(data);
 183
 184   CCECAdapterMessage output(data);
 185
 186   CLockObject lock(&m_mutex);
 187   if (!m_communication || !m_communication->Write(output))
 188     return bReturn;
 189
 190   if (bWaitForAck)
 191   {
 192     bool bError(false);
 193     if ((bReturn = WaitForAck(&bError, output.size(), 1000)) == false)
 194       m_controller->AddLog(CEC_LOG_ERROR, "did not receive ack");
 195   }
 196   else
 197   {
 198     bReturn = true;
 199   }
 200
 201   return bReturn;
 202 }
 203
 204 void CCECProcessor::TransmitAbort(cec_logical_address address, cec_opcode opcode, ECecAbortReason reason /* = CEC_ABORT_REASON_UNRECOGNIZED_OPCODE */)
 205 {
 206   m_controller->AddLog(CEC_LOG_DEBUG, "<< transmitting abort message");
 207
 208   cec_command command;
 209   cec_command::format(command, m_iLogicalAddress, address, CEC_OPCODE_FEATURE_ABORT);
 210   command.parameters.push_back((uint8_t)opcode);
 211   command.parameters.push_back((uint8_t)reason);
 212
 213   Transmit(command);
 214 }
 215
 216 bool CCECProcessor::WaitForAck(bool *bError, uint8_t iLength, uint32_t iTimeout /* = 1000 */)
 217 {
 218   bool bTransmitSucceeded = false;
 219   uint8_t iPacketsLeft(iLength / 4);
 220   *bError = false;
 221
 222   int64_t iNow = GetTimeMs();
 223   int64_t iTargetTime = iNow + (uint64_t) iTimeout;
 224
 225   while (!bTransmitSucceeded && !*bError && (iTimeout == 0 || iNow < iTargetTime))
 226   {
 227     CCECAdapterMessage msg;
 228
 229     if (!m_communication->Read(msg, iTimeout > 0 ? (int32_t)(iTargetTime - iNow) : 1000))
 230     {
 231       iNow = GetTimeMs();
 232       continue;
 233     }
 234
 235     switch(msg.message())
 236     {
 237     case MSGCODE_TIMEOUT_ERROR:
 238     case MSGCODE_HIGH_ERROR:
 239     case MSGCODE_LOW_ERROR:
 240       {
 241         CStdString logStr;
 242         if (msg.message() == MSGCODE_TIMEOUT_ERROR)
 243           logStr = "MSGCODE_TIMEOUT";
 244         else if (msg.message() == MSGCODE_HIGH_ERROR)
 245           logStr = "MSGCODE_HIGH_ERROR";
 246         else
 247           logStr = "MSGCODE_LOW_ERROR";
 248
 249         int iLine      = (msg.size() >= 3) ? (msg[1] << 8) | (msg[2]) : 0;
 250         uint32_t iTime = (msg.size() >= 7) ? (msg[3] << 24) | (msg[4] << 16) | (msg[5] << 8) | (msg[6]) : 0;
 251         logStr.AppendFormat(" line:%i", iLine);
 252         logStr.AppendFormat(" time:%u", iTime);
 253         m_controller->AddLog(CEC_LOG_WARNING, logStr.c_str());
 254         *bError = true;
 255       }
 256       break;
 257     case MSGCODE_COMMAND_ACCEPTED:
 258       m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_COMMAND_ACCEPTED");
 259       iPacketsLeft--;
 260       break;
 261     case MSGCODE_TRANSMIT_SUCCEEDED:
 262       m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_TRANSMIT_SUCCEEDED");
 263       bTransmitSucceeded = (iPacketsLeft == 0);
 264       *bError = !bTransmitSucceeded;
 265       break;
 266     case MSGCODE_RECEIVE_FAILED:
 267       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_RECEIVE_FAILED");
 268       *bError = true;
 269       break;
 270     case MSGCODE_COMMAND_REJECTED:
 271       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_COMMAND_REJECTED");
 272       *bError = true;
 273       break;
 274     case MSGCODE_TRANSMIT_FAILED_LINE:
 275       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_LINE");
 276       *bError = true;
 277       break;
 278     case MSGCODE_TRANSMIT_FAILED_ACK:
 279       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_ACK");
 280       *bError = true;
 281       break;
 282     case MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA:
 283       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA");
 284       *bError = true;
 285       break;
 286     case MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE:
 287       m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE");
 288       *bError = true;
 289       break;
 290     default:
 291       m_frameBuffer.Push(msg);
 292       break;
 293     }
 294
 295     iNow = GetTimeMs();
 296   }
 297
 298   return bTransmitSucceeded && !*bError;
 299 }
 300
 301 bool CCECProcessor::ParseMessage(CCECAdapterMessage &msg)
 302 {
 303   bool bEom = false;
 304
 305   if (msg.empty())
 306     return bEom;
 307
 308   CStdString logStr;
 309
 310   switch(msg.message())
 311   {
 312   case MSGCODE_NOTHING:
 313     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_NOTHING");
 314     break;
 315   case MSGCODE_TIMEOUT_ERROR:
 316   case MSGCODE_HIGH_ERROR:
 317   case MSGCODE_LOW_ERROR:
 318     {
 319       if (msg.message() == MSGCODE_TIMEOUT_ERROR)
 320         logStr = "MSGCODE_TIMEOUT";
 321       else if (msg.message() == MSGCODE_HIGH_ERROR)
 322         logStr = "MSGCODE_HIGH_ERROR";
 323       else
 324         logStr = "MSGCODE_LOW_ERROR";
 325
 326       int iLine      = (msg.size() >= 3) ? (msg[1] << 8) | (msg[2]) : 0;
 327       uint32_t iTime = (msg.size() >= 7) ? (msg[3] << 24) | (msg[4] << 16) | (msg[5] << 8) | (msg[6]) : 0;
 328       logStr.AppendFormat(" line:%i", iLine);
 329       logStr.AppendFormat(" time:%u", iTime);
 330       m_controller->AddLog(CEC_LOG_WARNING, logStr.c_str());
 331     }
 332     break;
 333   case MSGCODE_FRAME_START:
 334     {
 335       logStr = "MSGCODE_FRAME_START";
 336       m_currentframe.clear();
 337       if (msg.size() >= 2)
 338       {
 339         logStr.AppendFormat(" initiator:%u destination:%u ack:%s %s", msg.initiator(), msg.destination(), msg.ack() ? "high" : "low", msg.eom() ? "eom" : "");
 340         m_currentframe.initiator   = msg.initiator();
 341         m_currentframe.destination = msg.destination();
 342         m_currentframe.ack         = msg.ack();
 343         m_currentframe.eom         = msg.eom();
 344       }
 345       m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 346     }
 347     break;
 348   case MSGCODE_FRAME_DATA:
 349     {
 350       logStr = "MSGCODE_FRAME_DATA";
 351       if (msg.size() >= 2)
 352       {
 353         uint8_t iData = msg[1];
 354         logStr.AppendFormat(" %02x", iData);
 355         m_currentframe.push_back(iData);
 356         m_currentframe.eom = msg.eom();
 357       }
 358       m_controller->AddLog(CEC_LOG_DEBUG, logStr.c_str());
 359
 360       bEom = msg.eom();
 361     }
 362     break;
 363   case MSGCODE_COMMAND_ACCEPTED:
 364     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_COMMAND_ACCEPTED");
 365     break;
 366   case MSGCODE_TRANSMIT_SUCCEEDED:
 367     m_controller->AddLog(CEC_LOG_DEBUG, "MSGCODE_TRANSMIT_SUCCEEDED");
 368     break;
 369   case MSGCODE_RECEIVE_FAILED:
 370     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_RECEIVE_FAILED");
 371     break;
 372   case MSGCODE_COMMAND_REJECTED:
 373     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_COMMAND_REJECTED");
 374     break;
 375   case MSGCODE_TRANSMIT_FAILED_LINE:
 376     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_LINE");
 377     break;
 378   case MSGCODE_TRANSMIT_FAILED_ACK:
 379     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_ACK");
 380     break;
 381   case MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA:
 382     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_DATA");
 383     break;
 384   case MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE:
 385     m_controller->AddLog(CEC_LOG_WARNING, "MSGCODE_TRANSMIT_FAILED_TIMEOUT_LINE");
 386     break;
 387   default:
 388     break;
 389   }
 390
 391   return bEom;
 392 }
 393
 394 void CCECProcessor::ParseCommand(cec_command &command)
 395 {
 396   CStdString dataStr;
 397   dataStr.Format(">> %1x%1x:%02x", command.initiator, command.destination, command.opcode);
 398   for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 399     dataStr.AppendFormat(":%02x", (unsigned int)command.parameters[iPtr]);
 400   m_controller->AddLog(CEC_LOG_TRAFFIC, dataStr.c_str());
 401
 402   if (!m_bMonitor)
 403     m_busDevices[(uint8_t)command.initiator]->HandleCommand(command);
 404 }
 405
 406 uint16_t CCECProcessor::GetPhysicalAddress(void) const
 407 {
 408   return m_busDevices[m_iLogicalAddress]->GetPhysicalAddress();
 409 }
 410
 411 void CCECProcessor::SetCurrentButton(cec_user_control_code iButtonCode)
 412 {
 413   m_controller->SetCurrentButton(iButtonCode);
 414 }
 415
 416 void CCECProcessor::AddCommand(const cec_command &command)
 417 {
 418   m_controller->AddCommand(command);
 419 }
 420
 421 void CCECProcessor::AddKey(void)
 422 {
 423   m_controller->AddKey();
 424 }
 425
 426 void CCECProcessor::AddLog(cec_log_level level, const CStdString &strMessage)
 427 {
 428   m_controller->AddLog(level, strMessage);
 429 }