src/lib/LibCEC.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 "LibCEC.h"
  34
  35 #include "AdapterCommunication.h"
  36 #include "AdapterDetection.h"
  37 #include "CECProcessor.h"
  38 #include "devices/CECBusDevice.h"
  39 #include "platform/timeutils.h"
  40
  41 using namespace std;
  42 using namespace CEC;
  43 using namespace PLATFORM;
  44
  45 CLibCEC::CLibCEC(const char *strDeviceName, cec_device_type_list types) :
  46     m_iStartTime(GetTimeMs()),
  47     m_iCurrentButton(CEC_USER_CONTROL_CODE_UNKNOWN),
  48     m_buttontime(0),
  49     m_callbacks(NULL),
  50     m_cbParam(NULL)
  51 {
  52   m_cec = new CCECProcessor(this, strDeviceName, types);
  53 }
  54
  55 CLibCEC::CLibCEC(const char *strDeviceName, cec_logical_address iLogicalAddress /* = CECDEVICE_PLAYBACKDEVICE1 */, uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */) :
  56     m_iStartTime(GetTimeMs()),
  57     m_iCurrentButton(CEC_USER_CONTROL_CODE_UNKNOWN),
  58     m_buttontime(0),
  59     m_callbacks(NULL),
  60     m_cbParam(NULL)
  61 {
  62   m_cec = new CCECProcessor(this, strDeviceName, iLogicalAddress, iPhysicalAddress);
  63 }
  64
  65 CLibCEC::~CLibCEC(void)
  66 {
  67   Close();
  68   delete m_cec;
  69 }
  70
  71 bool CLibCEC::Open(const char *strPort, uint32_t iTimeoutMs /* = 10000 */)
  72 {
  73   if (m_cec->IsRunning())
  74   {
  75     AddLog(CEC_LOG_ERROR, "connection already open");
  76     return false;
  77   }
  78
  79   if (!m_cec->Start(strPort, 38400, iTimeoutMs))
  80   {
  81     AddLog(CEC_LOG_ERROR, "could not start CEC communications");
  82     return false;
  83   }
  84
  85   return true;
  86 }
  87
  88 void CLibCEC::Close(void)
  89 {
  90   if (m_cec)
  91     m_cec->StopThread();
  92 }
  93
  94 bool CLibCEC::EnableCallbacks(void *cbParam, ICECCallbacks *callbacks)
  95 {
  96   CLockObject lock(m_mutex);
  97   if (m_cec)
  98   {
  99     m_cbParam   = cbParam;
 100     m_callbacks = callbacks;
 101   }
 102   return false;
 103 }
 104
 105 int8_t CLibCEC::FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath /* = NULL */)
 106 {
 107   CStdString strDebug;
 108   if (strDevicePath)
 109     strDebug.Format("trying to autodetect the com port for device path '%s'", strDevicePath);
 110   else
 111     strDebug.Format("trying to autodetect all CEC adapters");
 112   AddLog(CEC_LOG_DEBUG, strDebug);
 113
 114   return CAdapterDetection::FindAdapters(deviceList, iBufSize, strDevicePath);
 115 }
 116
 117 bool CLibCEC::PingAdapter(void)
 118 {
 119   return m_cec ? m_cec->PingAdapter() : false;
 120 }
 121
 122 bool CLibCEC::StartBootloader(void)
 123 {
 124   return m_cec ? m_cec->StartBootloader() : false;
 125 }
 126
 127 bool CLibCEC::GetNextLogMessage(cec_log_message *message)
 128 {
 129   return (m_logBuffer.Pop(*message));
 130 }
 131
 132 bool CLibCEC::GetNextKeypress(cec_keypress *key)
 133 {
 134   return m_keyBuffer.Pop(*key);
 135 }
 136
 137 bool CLibCEC::GetNextCommand(cec_command *command)
 138 {
 139   return m_commandBuffer.Pop(*command);
 140 }
 141
 142 bool CLibCEC::Transmit(const cec_command &data)
 143 {
 144   return m_cec ? m_cec->Transmit(data) : false;
 145 }
 146
 147 bool CLibCEC::SetLogicalAddress(cec_logical_address iLogicalAddress)
 148 {
 149   return m_cec ? m_cec->SetLogicalAddress(iLogicalAddress) : false;
 150 }
 151
 152 bool CLibCEC::SetPhysicalAddress(uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */)
 153 {
 154   return m_cec ? m_cec->SetPhysicalAddress(iPhysicalAddress) : false;
 155 }
 156
 157 bool CLibCEC::SetHDMIPort(cec_logical_address iBaseDevice, uint8_t iPort /* = CEC_DEFAULT_HDMI_PORT */)
 158 {
 159   return m_cec ? m_cec->SetHDMIPort(iBaseDevice, iPort) : false;
 160 }
 161
 162 bool CLibCEC::EnablePhysicalAddressDetection(void)
 163 {
 164   return m_cec ? m_cec->EnablePhysicalAddressDetection() : false;
 165 }
 166
 167 bool CLibCEC::PowerOnDevices(cec_logical_address address /* = CECDEVICE_TV */)
 168 {
 169   return m_cec && address >= CECDEVICE_TV && address <= CECDEVICE_BROADCAST ? m_cec->m_busDevices[(uint8_t)address]->PowerOn() : false;
 170 }
 171
 172 bool CLibCEC::StandbyDevices(cec_logical_address address /* = CECDEVICE_BROADCAST */)
 173 {
 174   return m_cec && address >= CECDEVICE_TV && address <= CECDEVICE_BROADCAST ? m_cec->m_busDevices[(uint8_t)address]->Standby() : false;
 175 }
 176
 177 bool CLibCEC::SetActiveSource(cec_device_type type /* = CEC_DEVICE_TYPE_RESERVED */)
 178 {
 179   return m_cec ? m_cec->SetActiveSource(type) : false;
 180 }
 181
 182 bool CLibCEC::SetActiveView(void)
 183 {
 184   return m_cec ? m_cec->SetActiveView() : false;
 185 }
 186
 187 bool CLibCEC::SetDeckControlMode(cec_deck_control_mode mode, bool bSendUpdate /* = true */)
 188 {
 189   return m_cec ? m_cec->SetDeckControlMode(mode, bSendUpdate) : false;
 190 }
 191
 192 bool CLibCEC::SetDeckInfo(cec_deck_info info, bool bSendUpdate /* = true */)
 193 {
 194   return m_cec ? m_cec->SetDeckInfo(info, bSendUpdate) : false;
 195 }
 196
 197 bool CLibCEC::SetInactiveView(void)
 198 {
 199   return m_cec ? m_cec->TransmitInactiveSource() : false;
 200 }
 201
 202 bool CLibCEC::SetMenuState(cec_menu_state state, bool bSendUpdate /* = true */)
 203 {
 204   return m_cec ? m_cec->SetMenuState(state, bSendUpdate) : false;
 205 }
 206
 207 bool CLibCEC::SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage)
 208 {
 209   return m_cec && iLogicalAddress >= CECDEVICE_TV && iLogicalAddress <= CECDEVICE_BROADCAST ?
 210       m_cec->m_busDevices[m_cec->GetLogicalAddress()]->TransmitOSDString(iLogicalAddress, duration, strMessage) :
 211       false;
 212 }
 213
 214 bool CLibCEC::SwitchMonitoring(bool bEnable)
 215 {
 216   return m_cec ? m_cec->SwitchMonitoring(bEnable) : false;
 217 }
 218
 219 cec_version CLibCEC::GetDeviceCecVersion(cec_logical_address iAddress)
 220 {
 221   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 222     return m_cec->GetDeviceCecVersion(iAddress);
 223   return CEC_VERSION_UNKNOWN;
 224 }
 225
 226 bool CLibCEC::GetDeviceMenuLanguage(cec_logical_address iAddress, cec_menu_language *language)
 227 {
 228   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 229     return m_cec->GetDeviceMenuLanguage(iAddress, language);
 230   return false;
 231 }
 232
 233 uint64_t CLibCEC::GetDeviceVendorId(cec_logical_address iAddress)
 234 {
 235   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 236     return m_cec->GetDeviceVendorId(iAddress);
 237   return 0;
 238 }
 239
 240 uint16_t CLibCEC::GetDevicePhysicalAddress(cec_logical_address iAddress)
 241 {
 242   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 243     return m_cec->GetDevicePhysicalAddress(iAddress);
 244   return 0;
 245 }
 246
 247 cec_logical_address CLibCEC::GetActiveSource(void)
 248 {
 249   return m_cec ? m_cec->GetActiveSource() : CECDEVICE_UNKNOWN;
 250 }
 251
 252 bool CLibCEC::IsActiveSource(cec_logical_address iAddress)
 253 {
 254   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 255     return m_cec->IsActiveSource(iAddress);
 256   return false;
 257 }
 258
 259 cec_power_status CLibCEC::GetDevicePowerStatus(cec_logical_address iAddress)
 260 {
 261   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 262     return m_cec->GetDevicePowerStatus(iAddress);
 263   return CEC_POWER_STATUS_UNKNOWN;
 264 }
 265
 266 bool CLibCEC::PollDevice(cec_logical_address iAddress)
 267 {
 268   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 269     return m_cec->PollDevice(iAddress);
 270   return false;
 271 }
 272
 273 cec_logical_addresses CLibCEC::GetActiveDevices(void)
 274 {
 275   cec_logical_addresses addresses;
 276   addresses.Clear();
 277   if (m_cec)
 278     addresses = m_cec->GetActiveDevices();
 279   return addresses;
 280 }
 281
 282 bool CLibCEC::IsActiveDevice(cec_logical_address iAddress)
 283 {
 284   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 285     return m_cec->IsPresentDevice(iAddress);
 286   return false;
 287 }
 288
 289 bool CLibCEC::IsActiveDeviceType(cec_device_type type)
 290 {
 291   if (m_cec && type >= CEC_DEVICE_TYPE_TV && type <= CEC_DEVICE_TYPE_AUDIO_SYSTEM)
 292     return m_cec->IsPresentDeviceType(type);
 293   return false;
 294 }
 295
 296 uint8_t CLibCEC::VolumeUp(bool bSendRelease /* = true */)
 297 {
 298   if (m_cec)
 299     return m_cec->VolumeUp(bSendRelease);
 300   return 0;
 301 }
 302
 303 uint8_t CLibCEC::VolumeDown(bool bSendRelease /* = true */)
 304 {
 305   if (m_cec)
 306     return m_cec->VolumeDown(bSendRelease);
 307   return 0;
 308 }
 309
 310
 311 uint8_t CLibCEC::MuteAudio(bool bSendRelease /* = true */)
 312 {
 313   if (m_cec)
 314     return m_cec->MuteAudio(bSendRelease);
 315   return 0;
 316 }
 317
 318 bool CLibCEC::SendKeypress(cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
 319 {
 320   if (m_cec)
 321     return m_cec->TransmitKeypress(iDestination, key, bWait);
 322   return false;
 323 }
 324
 325 bool CLibCEC::SendKeyRelease(cec_logical_address iDestination, bool bWait /* = true */)
 326 {
 327   if (m_cec)
 328     return m_cec->TransmitKeyRelease(iDestination, bWait);
 329   return false;
 330 }
 331
 332 cec_osd_name CLibCEC::GetDeviceOSDName(cec_logical_address iAddress)
 333 {
 334   cec_osd_name retVal;
 335   retVal.device = iAddress;
 336   retVal.name[0] = 0;
 337
 338   if (m_cec)
 339     retVal = m_cec->GetDeviceOSDName(iAddress);
 340
 341   return retVal;
 342 }
 343
 344 void CLibCEC::AddLog(cec_log_level level, const string &strMessage)
 345 {
 346   CLockObject lock(m_mutex);
 347   if (m_cec)
 348   {
 349     cec_log_message message;
 350     message.level = level;
 351     message.time = GetTimeMs() - m_iStartTime;
 352     snprintf(message.message, sizeof(message.message), "%s", strMessage.c_str());
 353
 354     if (m_callbacks)
 355       m_callbacks->CBCecLogMessage(m_cbParam, message);
 356     else
 357       m_logBuffer.Push(message);
 358   }
 359 }
 360
 361 void CLibCEC::AddKey(cec_keypress &key)
 362 {
 363   CLockObject lock(m_mutex);
 364   if (m_callbacks)
 365     m_callbacks->CBCecKeyPress(m_cbParam, key);
 366   else
 367     m_keyBuffer.Push(key);
 368   m_iCurrentButton = CEC_USER_CONTROL_CODE_UNKNOWN;
 369   m_buttontime = 0;
 370 }
 371
 372 void CLibCEC::AddKey(void)
 373 {
 374   CLockObject lock(m_mutex);
 375   if (m_iCurrentButton != CEC_USER_CONTROL_CODE_UNKNOWN)
 376   {
 377     cec_keypress key;
 378
 379     key.duration = (unsigned int) (GetTimeMs() - m_buttontime);
 380     key.keycode = m_iCurrentButton;
 381
 382     if (m_callbacks)
 383       m_callbacks->CBCecKeyPress(m_cbParam, key);
 384     else
 385       m_keyBuffer.Push(key);
 386     m_iCurrentButton = CEC_USER_CONTROL_CODE_UNKNOWN;
 387   }
 388   m_buttontime = 0;
 389 }
 390
 391 void CLibCEC::AddCommand(const cec_command &command)
 392 {
 393   CLockObject lock(m_mutex);
 394   if (m_callbacks)
 395   {
 396     m_callbacks->CBCecCommand(m_cbParam, command);
 397   }
 398   else if (m_commandBuffer.Push(command))
 399   {
 400     CStdString strDebug;
 401     strDebug.Format("stored command '%2x' in the command buffer. buffer size = %d", command.opcode, m_commandBuffer.Size());
 402     AddLog(CEC_LOG_DEBUG, strDebug);
 403   }
 404   else
 405   {
 406     AddLog(CEC_LOG_WARNING, "command buffer is full");
 407   }
 408 }
 409
 410 void CLibCEC::CheckKeypressTimeout(void)
 411 {
 412   if (m_iCurrentButton != CEC_USER_CONTROL_CODE_UNKNOWN && GetTimeMs() - m_buttontime > CEC_BUTTON_TIMEOUT)
 413   {
 414     AddKey();
 415     m_iCurrentButton = CEC_USER_CONTROL_CODE_UNKNOWN;
 416   }
 417 }
 418
 419 void CLibCEC::SetCurrentButton(cec_user_control_code iButtonCode)
 420 {
 421   m_iCurrentButton = iButtonCode;
 422   m_buttontime = GetTimeMs();
 423
 424   /* push keypress to the keybuffer with 0 duration.
 425      push another press to the keybuffer with the duration set when the button is released */
 426   cec_keypress key;
 427   key.duration = 0;
 428   key.keycode = m_iCurrentButton;
 429   m_keyBuffer.Push(key);
 430 }
 431
 432 void * CECCreate(const char *strDeviceName, CEC::cec_logical_address iLogicalAddress /*= CEC::CECDEVICE_PLAYBACKDEVICE1 */, uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */)
 433 {
 434   return static_cast< void* > (new CLibCEC(strDeviceName, iLogicalAddress, iPhysicalAddress));
 435 }
 436
 437 void * CECInit(const char *strDeviceName, CEC::cec_device_type_list types)
 438 {
 439   return static_cast< void* > (new CLibCEC(strDeviceName, types));
 440 }
 441
 442 void CECDestroy(CEC::ICECAdapter *instance)
 443 {
 444   CLibCEC *lib = static_cast< CLibCEC* > (instance);
 445   if (lib)
 446     delete lib;
 447 }
 448
 449 const char *CLibCEC::ToString(const cec_menu_state state)
 450 {
 451   return m_cec->ToString(state);
 452 }
 453
 454 const char *CLibCEC::ToString(const cec_version version)
 455 {
 456   return m_cec->ToString(version);
 457 }
 458
 459 const char *CLibCEC::ToString(const cec_power_status status)
 460 {
 461   return m_cec->ToString(status);
 462 }
 463
 464 const char *CLibCEC::ToString(const cec_logical_address address)
 465 {
 466   return m_cec->ToString(address);
 467 }
 468
 469 const char *CLibCEC::ToString(const cec_deck_control_mode mode)
 470 {
 471   return m_cec->ToString(mode);
 472 }
 473
 474 const char *CLibCEC::ToString(const cec_deck_info status)
 475 {
 476   return m_cec->ToString(status);
 477 }
 478
 479 const char *CLibCEC::ToString(const cec_opcode opcode)
 480 {
 481   return m_cec->ToString(opcode);
 482 }
 483
 484 const char *CLibCEC::ToString(const cec_system_audio_status mode)
 485 {
 486   return m_cec->ToString(mode);
 487 }
 488
 489 const char *CLibCEC::ToString(const cec_audio_status status)
 490 {
 491   return m_cec->ToString(status);
 492 }
 493
 494 const char *CLibCEC::ToString(const cec_vendor_id vendor)
 495 {
 496   return m_cec->ToString(vendor);
 497 }