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 "adapter/AdapterCommunication.h"
  36 #include "adapter/AdapterDetection.h"
  37 #include "CECProcessor.h"
  38 #include "devices/CECBusDevice.h"
  39 #include "platform/util/timeutils.h"
  40 #include "platform/util/StdString.h"
  41
  42 using namespace std;
  43 using namespace CEC;
  44 using namespace PLATFORM;
  45
  46 CLibCEC::CLibCEC(const char *strDeviceName, cec_device_type_list types) :
  47     m_iStartTime(GetTimeMs()),
  48     m_iCurrentButton(CEC_USER_CONTROL_CODE_UNKNOWN),
  49     m_buttontime(0),
  50     m_callbacks(NULL),
  51     m_cbParam(NULL)
  52 {
  53   m_cec = new CCECProcessor(this, strDeviceName, types);
  54 }
  55
  56 CLibCEC::CLibCEC(const char *strDeviceName, cec_logical_address iLogicalAddress /* = CECDEVICE_PLAYBACKDEVICE1 */, uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */) :
  57     m_iStartTime(GetTimeMs()),
  58     m_iCurrentButton(CEC_USER_CONTROL_CODE_UNKNOWN),
  59     m_buttontime(0),
  60     m_callbacks(NULL),
  61     m_cbParam(NULL)
  62 {
  63   m_cec = new CCECProcessor(this, strDeviceName, iLogicalAddress, iPhysicalAddress);
  64 }
  65
  66 CLibCEC::~CLibCEC(void)
  67 {
  68   Close();
  69   delete m_cec;
  70 }
  71
  72 bool CLibCEC::Open(const char *strPort, uint32_t iTimeoutMs /* = 10000 */)
  73 {
  74   if (m_cec->IsRunning())
  75   {
  76     AddLog(CEC_LOG_ERROR, "connection already open");
  77     return false;
  78   }
  79
  80   if (!m_cec->Start(strPort, 38400, iTimeoutMs))
  81   {
  82     AddLog(CEC_LOG_ERROR, "could not start CEC communications");
  83     return false;
  84   }
  85
  86   return true;
  87 }
  88
  89 void CLibCEC::Close(void)
  90 {
  91   if (m_cec)
  92     m_cec->StopThread();
  93 }
  94
  95 bool CLibCEC::EnableCallbacks(void *cbParam, ICECCallbacks *callbacks)
  96 {
  97   CLockObject lock(m_mutex);
  98   if (m_cec)
  99   {
 100     m_cbParam   = cbParam;
 101     m_callbacks = callbacks;
 102   }
 103   return false;
 104 }
 105
 106 int8_t CLibCEC::FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath /* = NULL */)
 107 {
 108   CStdString strDebug;
 109   if (strDevicePath)
 110     strDebug.Format("trying to autodetect the com port for device path '%s'", strDevicePath);
 111   else
 112     strDebug.Format("trying to autodetect all CEC adapters");
 113   AddLog(CEC_LOG_DEBUG, strDebug);
 114
 115   return CAdapterDetection::FindAdapters(deviceList, iBufSize, strDevicePath);
 116 }
 117
 118 bool CLibCEC::PingAdapter(void)
 119 {
 120   return m_cec ? m_cec->PingAdapter() : false;
 121 }
 122
 123 bool CLibCEC::StartBootloader(void)
 124 {
 125   return m_cec ? m_cec->StartBootloader() : false;
 126 }
 127
 128 bool CLibCEC::GetNextLogMessage(cec_log_message *message)
 129 {
 130   return (m_logBuffer.Pop(*message));
 131 }
 132
 133 bool CLibCEC::GetNextKeypress(cec_keypress *key)
 134 {
 135   return m_keyBuffer.Pop(*key);
 136 }
 137
 138 bool CLibCEC::GetNextCommand(cec_command *command)
 139 {
 140   return m_commandBuffer.Pop(*command);
 141 }
 142
 143 bool CLibCEC::Transmit(const cec_command &data)
 144 {
 145   return m_cec ? m_cec->Transmit(data) : false;
 146 }
 147
 148 bool CLibCEC::SetLogicalAddress(cec_logical_address iLogicalAddress)
 149 {
 150   return m_cec ? m_cec->SetLogicalAddress(iLogicalAddress) : false;
 151 }
 152
 153 bool CLibCEC::SetPhysicalAddress(uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */)
 154 {
 155   return m_cec ? m_cec->SetPhysicalAddress(iPhysicalAddress) : false;
 156 }
 157
 158 bool CLibCEC::SetHDMIPort(cec_logical_address iBaseDevice, uint8_t iPort /* = CEC_DEFAULT_HDMI_PORT */)
 159 {
 160   return m_cec ? m_cec->SetHDMIPort(iBaseDevice, iPort) : false;
 161 }
 162
 163 bool CLibCEC::EnablePhysicalAddressDetection(void)
 164 {
 165   return m_cec ? m_cec->EnablePhysicalAddressDetection() : false;
 166 }
 167
 168 bool CLibCEC::PowerOnDevices(cec_logical_address address /* = CECDEVICE_TV */)
 169 {
 170   return m_cec && address >= CECDEVICE_TV && address <= CECDEVICE_BROADCAST ? m_cec->m_busDevices[(uint8_t)address]->PowerOn() : false;
 171 }
 172
 173 bool CLibCEC::StandbyDevices(cec_logical_address address /* = CECDEVICE_BROADCAST */)
 174 {
 175   return m_cec && address >= CECDEVICE_TV && address <= CECDEVICE_BROADCAST ? m_cec->m_busDevices[(uint8_t)address]->Standby() : false;
 176 }
 177
 178 bool CLibCEC::SetActiveSource(cec_device_type type /* = CEC_DEVICE_TYPE_RESERVED */)
 179 {
 180   return m_cec ? m_cec->SetActiveSource(type) : false;
 181 }
 182
 183 bool CLibCEC::SetActiveView(void)
 184 {
 185   return m_cec ? m_cec->SetActiveView() : false;
 186 }
 187
 188 bool CLibCEC::SetDeckControlMode(cec_deck_control_mode mode, bool bSendUpdate /* = true */)
 189 {
 190   return m_cec ? m_cec->SetDeckControlMode(mode, bSendUpdate) : false;
 191 }
 192
 193 bool CLibCEC::SetDeckInfo(cec_deck_info info, bool bSendUpdate /* = true */)
 194 {
 195   return m_cec ? m_cec->SetDeckInfo(info, bSendUpdate) : false;
 196 }
 197
 198 bool CLibCEC::SetInactiveView(void)
 199 {
 200   return m_cec ? m_cec->TransmitInactiveSource() : false;
 201 }
 202
 203 bool CLibCEC::SetMenuState(cec_menu_state state, bool bSendUpdate /* = true */)
 204 {
 205   return m_cec ? m_cec->SetMenuState(state, bSendUpdate) : false;
 206 }
 207
 208 bool CLibCEC::SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage)
 209 {
 210   return m_cec && iLogicalAddress >= CECDEVICE_TV && iLogicalAddress <= CECDEVICE_BROADCAST ?
 211       m_cec->m_busDevices[m_cec->GetLogicalAddress()]->TransmitOSDString(iLogicalAddress, duration, strMessage) :
 212       false;
 213 }
 214
 215 bool CLibCEC::SwitchMonitoring(bool bEnable)
 216 {
 217   return m_cec ? m_cec->SwitchMonitoring(bEnable) : false;
 218 }
 219
 220 cec_version CLibCEC::GetDeviceCecVersion(cec_logical_address iAddress)
 221 {
 222   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 223     return m_cec->GetDeviceCecVersion(iAddress);
 224   return CEC_VERSION_UNKNOWN;
 225 }
 226
 227 bool CLibCEC::GetDeviceMenuLanguage(cec_logical_address iAddress, cec_menu_language *language)
 228 {
 229   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 230     return m_cec->GetDeviceMenuLanguage(iAddress, language);
 231   return false;
 232 }
 233
 234 uint64_t CLibCEC::GetDeviceVendorId(cec_logical_address iAddress)
 235 {
 236   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 237     return m_cec->GetDeviceVendorId(iAddress);
 238   return 0;
 239 }
 240
 241 uint16_t CLibCEC::GetDevicePhysicalAddress(cec_logical_address iAddress)
 242 {
 243   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 244     return m_cec->GetDevicePhysicalAddress(iAddress);
 245   return 0;
 246 }
 247
 248 cec_logical_address CLibCEC::GetActiveSource(void)
 249 {
 250   return m_cec ? m_cec->GetActiveSource() : CECDEVICE_UNKNOWN;
 251 }
 252
 253 bool CLibCEC::IsActiveSource(cec_logical_address iAddress)
 254 {
 255   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 256     return m_cec->IsActiveSource(iAddress);
 257   return false;
 258 }
 259
 260 cec_power_status CLibCEC::GetDevicePowerStatus(cec_logical_address iAddress)
 261 {
 262   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 263     return m_cec->GetDevicePowerStatus(iAddress);
 264   return CEC_POWER_STATUS_UNKNOWN;
 265 }
 266
 267 bool CLibCEC::PollDevice(cec_logical_address iAddress)
 268 {
 269   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 270     return m_cec->PollDevice(iAddress);
 271   return false;
 272 }
 273
 274 cec_logical_addresses CLibCEC::GetActiveDevices(void)
 275 {
 276   cec_logical_addresses addresses;
 277   addresses.Clear();
 278   if (m_cec)
 279     addresses = m_cec->GetActiveDevices();
 280   return addresses;
 281 }
 282
 283 bool CLibCEC::IsActiveDevice(cec_logical_address iAddress)
 284 {
 285   if (m_cec && iAddress >= CECDEVICE_TV && iAddress < CECDEVICE_BROADCAST)
 286     return m_cec->IsPresentDevice(iAddress);
 287   return false;
 288 }
 289
 290 bool CLibCEC::IsActiveDeviceType(cec_device_type type)
 291 {
 292   if (m_cec && type >= CEC_DEVICE_TYPE_TV && type <= CEC_DEVICE_TYPE_AUDIO_SYSTEM)
 293     return m_cec->IsPresentDeviceType(type);
 294   return false;
 295 }
 296
 297 uint8_t CLibCEC::VolumeUp(bool bSendRelease /* = true */)
 298 {
 299   if (m_cec)
 300     return m_cec->VolumeUp(bSendRelease);
 301   return 0;
 302 }
 303
 304 uint8_t CLibCEC::VolumeDown(bool bSendRelease /* = true */)
 305 {
 306   if (m_cec)
 307     return m_cec->VolumeDown(bSendRelease);
 308   return 0;
 309 }
 310
 311
 312 uint8_t CLibCEC::MuteAudio(bool bSendRelease /* = true */)
 313 {
 314   if (m_cec)
 315     return m_cec->MuteAudio(bSendRelease);
 316   return 0;
 317 }
 318
 319 bool CLibCEC::SendKeypress(cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
 320 {
 321   if (m_cec)
 322     return m_cec->TransmitKeypress(iDestination, key, bWait);
 323   return false;
 324 }
 325
 326 bool CLibCEC::SendKeyRelease(cec_logical_address iDestination, bool bWait /* = true */)
 327 {
 328   if (m_cec)
 329     return m_cec->TransmitKeyRelease(iDestination, bWait);
 330   return false;
 331 }
 332
 333 cec_osd_name CLibCEC::GetDeviceOSDName(cec_logical_address iAddress)
 334 {
 335   cec_osd_name retVal;
 336   retVal.device = iAddress;
 337   retVal.name[0] = 0;
 338
 339   if (m_cec)
 340     retVal = m_cec->GetDeviceOSDName(iAddress);
 341
 342   return retVal;
 343 }
 344
 345 void CLibCEC::AddLog(cec_log_level level, const char *strFormat, ...)
 346 {
 347   CStdString strLog;
 348
 349   va_list argList;
 350   va_start(argList, strFormat);
 351   strLog.FormatV(strFormat, argList);
 352   va_end(argList);
 353
 354   CLibCEC *instance = CLibCEC::GetInstance();
 355   CLockObject lock(instance->m_mutex);
 356
 357   cec_log_message message;
 358   message.level = level;
 359   message.time = GetTimeMs() - instance->m_iStartTime;
 360   snprintf(message.message, sizeof(message.message), "%s", strLog.c_str());
 361
 362   if (instance->m_callbacks)
 363     instance->m_callbacks->CBCecLogMessage(instance->m_cbParam, message);
 364   else
 365     instance->m_logBuffer.Push(message);
 366 }
 367
 368 void CLibCEC::AddKey(cec_keypress &key)
 369 {
 370   CLibCEC *instance = CLibCEC::GetInstance();
 371   CLockObject lock(instance->m_mutex);
 372
 373   AddLog(CEC_LOG_DEBUG, "key pressed: %1x", key.keycode);
 374
 375   if (instance->m_callbacks)
 376     instance->m_callbacks->CBCecKeyPress(instance->m_cbParam, key);
 377   else
 378     instance->m_keyBuffer.Push(key);
 379
 380   instance->m_iCurrentButton = key.duration > 0 ? CEC_USER_CONTROL_CODE_UNKNOWN : key.keycode;
 381   instance->m_buttontime = key.duration > 0 ? 0 : GetTimeMs();
 382 }
 383
 384 void CLibCEC::SetCurrentButton(cec_user_control_code iButtonCode)
 385 {
 386   /* push keypress to the keybuffer with 0 duration.
 387      push another press to the keybuffer with the duration set when the button is released */
 388   cec_keypress key;
 389   key.duration = 0;
 390   key.keycode = iButtonCode;
 391
 392   AddKey(key);
 393 }
 394
 395 void CLibCEC::AddKey(void)
 396 {
 397   CLibCEC *instance = CLibCEC::GetInstance();
 398   CLockObject lock(instance->m_mutex);
 399
 400   if (instance->m_iCurrentButton != CEC_USER_CONTROL_CODE_UNKNOWN)
 401   {
 402     cec_keypress key;
 403
 404     key.duration = (unsigned int) (GetTimeMs() - instance->m_buttontime);
 405     key.keycode = instance->m_iCurrentButton;
 406     AddLog(CEC_LOG_DEBUG, "key released: %1x", key.keycode);
 407
 408     if (instance->m_callbacks)
 409       instance->m_callbacks->CBCecKeyPress(instance->m_cbParam, key);
 410     else
 411       instance->m_keyBuffer.Push(key);
 412     instance->m_iCurrentButton = CEC_USER_CONTROL_CODE_UNKNOWN;
 413   }
 414   instance->m_buttontime = 0;
 415 }
 416
 417 void CLibCEC::AddCommand(const cec_command &command)
 418 {
 419   CLibCEC *instance = CLibCEC::GetInstance();
 420   CLockObject lock(instance->m_mutex);
 421
 422   AddLog(CEC_LOG_NOTICE, ">> %s (%X) -> %s (%X): %s (%2X)", instance->m_cec->ToString(command.initiator), command.initiator, instance->m_cec->ToString(command.destination), command.destination, instance->m_cec->ToString(command.opcode), command.opcode);
 423
 424   if (instance->m_callbacks)
 425     instance->m_callbacks->CBCecCommand(instance->m_cbParam, command);
 426   else if (!instance->m_commandBuffer.Push(command))
 427     AddLog(CEC_LOG_WARNING, "command buffer is full");
 428 }
 429
 430 void CLibCEC::CheckKeypressTimeout(void)
 431 {
 432   if (m_iCurrentButton != CEC_USER_CONTROL_CODE_UNKNOWN && GetTimeMs() - m_buttontime > CEC_BUTTON_TIMEOUT)
 433   {
 434     AddKey();
 435     m_iCurrentButton = CEC_USER_CONTROL_CODE_UNKNOWN;
 436   }
 437 }
 438
 439 static CLibCEC *g_libCEC_instance(NULL);
 440 CLibCEC *CLibCEC::GetInstance(void)
 441 {
 442   return g_libCEC_instance;
 443 }
 444
 445 void CLibCEC::SetInstance(CLibCEC *instance)
 446 {
 447   if (g_libCEC_instance)
 448     delete g_libCEC_instance;
 449   g_libCEC_instance = instance;
 450 }
 451
 452 void * CECCreate(const char *strDeviceName, CEC::cec_logical_address iLogicalAddress /*= CEC::CECDEVICE_PLAYBACKDEVICE1 */, uint16_t iPhysicalAddress /* = CEC_DEFAULT_PHYSICAL_ADDRESS */)
 453 {
 454   CLibCEC *lib = new CLibCEC(strDeviceName, iLogicalAddress, iPhysicalAddress);
 455   CLibCEC::SetInstance(lib);
 456   return static_cast< void* > (lib);
 457 }
 458
 459 void * CECInit(const char *strDeviceName, CEC::cec_device_type_list types)
 460 {
 461   CLibCEC *lib = new CLibCEC(strDeviceName, types);
 462   CLibCEC::SetInstance(lib);
 463   return static_cast< void* > (lib);
 464 }
 465
 466 void CECDestroy(CEC::ICECAdapter *UNUSED(instance))
 467 {
 468   CLibCEC::SetInstance(NULL);
 469 }
 470
 471 const char *CLibCEC::ToString(const cec_menu_state state)
 472 {
 473   return m_cec->ToString(state);
 474 }
 475
 476 const char *CLibCEC::ToString(const cec_version version)
 477 {
 478   return m_cec->ToString(version);
 479 }
 480
 481 const char *CLibCEC::ToString(const cec_power_status status)
 482 {
 483   return m_cec->ToString(status);
 484 }
 485
 486 const char *CLibCEC::ToString(const cec_logical_address address)
 487 {
 488   return m_cec->ToString(address);
 489 }
 490
 491 const char *CLibCEC::ToString(const cec_deck_control_mode mode)
 492 {
 493   return m_cec->ToString(mode);
 494 }
 495
 496 const char *CLibCEC::ToString(const cec_deck_info status)
 497 {
 498   return m_cec->ToString(status);
 499 }
 500
 501 const char *CLibCEC::ToString(const cec_opcode opcode)
 502 {
 503   return m_cec->ToString(opcode);
 504 }
 505
 506 const char *CLibCEC::ToString(const cec_system_audio_status mode)
 507 {
 508   return m_cec->ToString(mode);
 509 }
 510
 511 const char *CLibCEC::ToString(const cec_audio_status status)
 512 {
 513   return m_cec->ToString(status);
 514 }
 515
 516 const char *CLibCEC::ToString(const cec_vendor_id vendor)
 517 {
 518   return m_cec->ToString(vendor);
 519 }