src/lib/devices/CECAudioSystem.cpp

   1 /*
   2  * This file is part of the libCEC(R) library.
   3  *
   4  * libCEC(R) is Copyright (C) 2011-2012 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 #include "../LibCEC.h"
  37
  38 using namespace CEC;
  39 using namespace PLATFORM;
  40
  41 #define ToString(p) m_processor->ToString(p)
  42
  43 CCECAudioSystem::CCECAudioSystem(CCECProcessor *processor, cec_logical_address address, uint16_t iPhysicalAddress /* = 0 */) :
  44     CCECBusDevice(processor, address, iPhysicalAddress),
  45     m_systemAudioStatus(CEC_SYSTEM_AUDIO_STATUS_ON),
  46     m_audioStatus(CEC_AUDIO_MUTE_STATUS_MASK)
  47 {
  48   m_type = CEC_DEVICE_TYPE_AUDIO_SYSTEM;
  49 }
  50
  51 bool CCECAudioSystem::SetAudioStatus(uint8_t status)
  52 {
  53   CLockObject lock(m_mutex);
  54   if (m_audioStatus != status)
  55   {
  56     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): audio status changed from %2x to %2x", GetLogicalAddressName(), m_iLogicalAddress, m_audioStatus, status);
  57     m_audioStatus = status;
  58     return true;
  59   }
  60
  61   return false;
  62 }
  63
  64 bool CCECAudioSystem::SetSystemAudioModeStatus(const cec_system_audio_status mode)
  65 {
  66   CLockObject lock(m_mutex);
  67   if (m_systemAudioStatus != mode)
  68   {
  69     CLibCEC::AddLog(CEC_LOG_DEBUG, ">> %s (%X): system audio mode status changed from %s to %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_systemAudioStatus), ToString(mode));
  70     m_systemAudioStatus = mode;
  71     return true;
  72   }
  73
  74   return false;
  75 }
  76
  77 bool CCECAudioSystem::TransmitAudioStatus(cec_logical_address dest)
  78 {
  79   uint8_t state;
  80   {
  81     CLockObject lock(m_mutex);
  82     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %x -> %x: audio status '%2x'", m_iLogicalAddress, dest, m_audioStatus);
  83     state = m_audioStatus;
  84   }
  85
  86   return m_handler->TransmitAudioStatus(m_iLogicalAddress, dest, state);
  87 }
  88
  89 bool CCECAudioSystem::TransmitSetSystemAudioMode(cec_logical_address dest)
  90 {
  91   cec_system_audio_status state;
  92   {
  93     CLockObject lock(m_mutex);
  94     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %x -> %x: set system audio mode '%2x'", m_iLogicalAddress, dest, m_audioStatus);
  95     state = m_systemAudioStatus;
  96   }
  97
  98   return m_handler->TransmitSetSystemAudioMode(m_iLogicalAddress, dest, state);
  99 }
 100
 101 bool CCECAudioSystem::TransmitSystemAudioModeStatus(cec_logical_address dest)
 102 {
 103   cec_system_audio_status state;
 104   {
 105     CLockObject lock(m_mutex);
 106     CLibCEC::AddLog(CEC_LOG_NOTICE, "<< %x -> %x: system audio mode '%s'", m_iLogicalAddress, dest, ToString(m_systemAudioStatus));
 107     state = m_systemAudioStatus;
 108   }
 109
 110   return m_handler->TransmitSystemAudioModeStatus(m_iLogicalAddress, dest, state);
 111 }
 112
 113 uint8_t CCECAudioSystem::VolumeUp(bool bSendRelease /* = true */)
 114 {
 115   if (TransmitKeypress(CEC_USER_CONTROL_CODE_VOLUME_UP) && bSendRelease)
 116     TransmitKeyRelease();
 117
 118   CLockObject lock(m_mutex);
 119   return m_audioStatus;
 120 }
 121
 122 uint8_t CCECAudioSystem::VolumeDown(bool bSendRelease /* = true */)
 123 {
 124   if (TransmitKeypress(CEC_USER_CONTROL_CODE_VOLUME_DOWN) && bSendRelease)
 125     TransmitKeyRelease();
 126
 127   CLockObject lock(m_mutex);
 128   return m_audioStatus;
 129 }
 130
 131 uint8_t CCECAudioSystem::MuteAudio(bool bSendRelease /* = true */)
 132 {
 133   if (TransmitKeypress(CEC_USER_CONTROL_CODE_MUTE) && bSendRelease)
 134     TransmitKeyRelease();
 135
 136   CLockObject lock(m_mutex);
 137   return m_audioStatus;
 138 }