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