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 using namespace PLATFORM;
  39
  40 #define ToString(p) m_processor->ToString(p)
  41
  42 CCECAudioSystem::CCECAudioSystem(CCECProcessor *processor, cec_logical_address address, uint16_t iPhysicalAddress /* = 0 */) :
  43     CCECBusDevice(processor, address, iPhysicalAddress),
  44     m_systemAudioStatus(CEC_SYSTEM_AUDIO_STATUS_ON),
  45     m_audioStatus(CEC_AUDIO_MUTE_STATUS_MASK)
  46 {
  47   m_type = CEC_DEVICE_TYPE_AUDIO_SYSTEM;
  48 }
  49
  50 bool CCECAudioSystem::SetAudioStatus(uint8_t status)
  51 {
  52   CLockObject lock(m_mutex);
  53   if (m_audioStatus != status)
  54   {
  55     CStdString strLog;
  56     strLog.Format(">> %s (%X): audio status changed from %2x to %2x", GetLogicalAddressName(), m_iLogicalAddress, m_audioStatus, status);
  57     AddLog(CEC_LOG_DEBUG, strLog.c_str());
  58
  59     m_audioStatus = status;
  60     return true;
  61   }
  62
  63   return false;
  64 }
  65
  66 bool CCECAudioSystem::SetSystemAudioModeStatus(const cec_system_audio_status mode)
  67 {
  68   CLockObject lock(m_mutex);
  69   if (m_systemAudioStatus != mode)
  70   {
  71     CStdString strLog;
  72     strLog.Format(">> %s (%X): system audio mode status changed from %s to %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_systemAudioStatus), ToString(mode));
  73     AddLog(CEC_LOG_DEBUG, strLog.c_str());
  74
  75     m_systemAudioStatus = mode;
  76     return true;
  77   }
  78
  79   return false;
  80 }
  81
  82 bool CCECAudioSystem::TransmitAudioStatus(cec_logical_address dest)
  83 {
  84   uint8_t state;
  85   {
  86     CLockObject lock(m_mutex);
  87     CStdString strLog;
  88     strLog.Format("<< %x -> %x: audio status '%2x'", m_iLogicalAddress, dest, m_audioStatus);
  89     AddLog(CEC_LOG_NOTICE, strLog);
  90     state = m_audioStatus;
  91   }
  92
  93   return m_handler->TransmitAudioStatus(m_iLogicalAddress, dest, state);
  94 }
  95
  96 bool CCECAudioSystem::TransmitSetSystemAudioMode(cec_logical_address dest)
  97 {
  98   cec_system_audio_status state;
  99   {
 100     CLockObject lock(m_mutex);
 101     CStdString strLog;
 102     strLog.Format("<< %x -> %x: set system audio mode '%2x'", m_iLogicalAddress, dest, m_audioStatus);
 103     AddLog(CEC_LOG_NOTICE, strLog);
 104     state = m_systemAudioStatus;
 105   }
 106
 107   return m_handler->TransmitSetSystemAudioMode(m_iLogicalAddress, dest, state);
 108 }
 109
 110 bool CCECAudioSystem::TransmitSystemAudioModeStatus(cec_logical_address dest)
 111 {
 112   cec_system_audio_status state;
 113   {
 114     CLockObject lock(m_mutex);
 115     CStdString strLog;
 116     strLog.Format("<< %x -> %x: system audio mode '%s'", m_iLogicalAddress, dest, ToString(m_systemAudioStatus));
 117     AddLog(CEC_LOG_NOTICE, strLog);
 118     state = m_systemAudioStatus;
 119   }
 120
 121   return m_handler->TransmitSystemAudioModeStatus(m_iLogicalAddress, dest, state);
 122 }
 123
 124 uint8_t CCECAudioSystem::VolumeUp(bool bSendRelease /* = true */)
 125 {
 126   if (TransmitKeypress(CEC_USER_CONTROL_CODE_VOLUME_UP) && bSendRelease)
 127     TransmitKeyRelease();
 128
 129   CLockObject lock(m_mutex);
 130   return m_audioStatus;
 131 }
 132
 133 uint8_t CCECAudioSystem::VolumeDown(bool bSendRelease /* = true */)
 134 {
 135   if (TransmitKeypress(CEC_USER_CONTROL_CODE_VOLUME_DOWN) && bSendRelease)
 136     TransmitKeyRelease();
 137
 138   CLockObject lock(m_mutex);
 139   return m_audioStatus;
 140 }
 141
 142 uint8_t CCECAudioSystem::MuteAudio(bool bSendRelease /* = true */)
 143 {
 144   if (TransmitKeypress(CEC_USER_CONTROL_CODE_MUTE) && bSendRelease)
 145     TransmitKeyRelease();
 146
 147   CLockObject lock(m_mutex);
 148   return m_audioStatus;
 149 }