src/lib/devices/CECAudioSystem.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 "CECAudioSystem.h"
  34 #include "../CECProcessor.h"
  35 #include "../implementations/CECCommandHandler.h"
  36
  37 using namespace CEC;
  38
  39 CCECAudioSystem::CCECAudioSystem(CCECProcessor *processor, cec_logical_address address, uint16_t iPhysicalAddress /* = 0 */) :
  40     CCECBusDevice(processor, address, iPhysicalAddress),
  41     m_systemAudioStatus(CEC_SYSTEM_AUDIO_STATUS_ON),
  42     m_audioStatus(CEC_AUDIO_MUTE_STATUS_MASK)
  43 {
  44   m_type = CEC_DEVICE_TYPE_AUDIO_SYSTEM;
  45 }
  46
  47 bool CCECAudioSystem::SetAudioStatus(uint8_t status)
  48 {
  49   if (m_audioStatus != status)
  50   {
  51     CStdString strLog;
  52     strLog.Format(">> %s (%X): audio status changed from %2x to %2x", GetLogicalAddressName(), m_iLogicalAddress, m_audioStatus, status);
  53     AddLog(CEC_LOG_DEBUG, strLog.c_str());
  54
  55     m_audioStatus = status;
  56     return true;
  57   }
  58
  59   return false;
  60 }
  61
  62 bool CCECAudioSystem::SetSystemAudioMode(const cec_system_audio_status mode)
  63 {
  64   if (m_systemAudioStatus != mode)
  65   {
  66     CStdString strLog;
  67     strLog.Format(">> %s (%X): system audio mode changed from %s to %s", GetLogicalAddressName(), m_iLogicalAddress, CCECCommandHandler::ToString(m_systemAudioStatus), CCECCommandHandler::ToString(mode));
  68     AddLog(CEC_LOG_DEBUG, strLog.c_str());
  69
  70     m_systemAudioStatus = mode;
  71     return true;
  72   }
  73
  74   return false;
  75 }
  76
  77 bool CCECAudioSystem::SetSystemAudioMode(const cec_command &command)
  78 {
  79   SetSystemAudioMode((command.parameters.size == 0) ?
  80     CEC_SYSTEM_AUDIO_STATUS_OFF :
  81   CEC_SYSTEM_AUDIO_STATUS_ON);
  82
  83   return TransmitAudioStatus(command.initiator);
  84 }
  85
  86 bool CCECAudioSystem::TransmitAudioStatus(cec_logical_address dest)
  87 {
  88   CStdString strLog;
  89   strLog.Format("<< %x -> %x: audio status '%2x'", m_iLogicalAddress, dest, m_audioStatus);
  90   AddLog(CEC_LOG_NOTICE, strLog);
  91
  92   cec_command command;
  93   cec_command::Format(command, m_iLogicalAddress, dest, CEC_OPCODE_REPORT_AUDIO_STATUS);
  94   command.parameters.PushBack(m_audioStatus);
  95
  96   return m_processor->Transmit(command);
  97 }
  98
  99 bool CCECAudioSystem::TransmitSystemAudioModeStatus(cec_logical_address dest)
 100 {
 101   CStdString strLog;
 102   strLog.Format("<< %x -> %x: system audio mode '%s'", m_iLogicalAddress, dest, CCECCommandHandler::ToString(m_systemAudioStatus));
 103   AddLog(CEC_LOG_NOTICE, strLog);
 104
 105   cec_command command;
 106   cec_command::Format(command, m_iLogicalAddress, dest, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
 107   command.parameters.PushBack((uint8_t) m_systemAudioStatus);
 108
 109   return m_processor->Transmit(command);
 110 }
 111
 112 uint8_t CCECAudioSystem::VolumeUp(bool bWait /* = true */)
 113 {
 114   if (SendKeypress(CEC_USER_CONTROL_CODE_VOLUME_UP))
 115     SendKeyRelease(bWait);
 116
 117   CLockObject lock(&m_mutex);
 118   return m_audioStatus;
 119 }
 120
 121 uint8_t CCECAudioSystem::VolumeDown(bool bWait /* = true */)
 122 {
 123   if (SendKeypress(CEC_USER_CONTROL_CODE_VOLUME_DOWN))
 124     SendKeyRelease(bWait);
 125
 126   CLockObject lock(&m_mutex);
 127   return m_audioStatus;
 128 }
 129
 130 uint8_t CCECAudioSystem::MuteAudio(bool bWait /* = true */)
 131 {
 132   if (SendKeypress(CEC_USER_CONTROL_CODE_MUTE))
 133     SendKeyRelease(bWait);
 134
 135   CLockObject lock(&m_mutex);
 136   return m_audioStatus;
 137 }