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 #include "../CECTypeUtils.h"
  38
  39 using namespace CEC;
  40 using namespace PLATFORM;
  41
  42 #define LIB_CEC     m_processor->GetLib()
  43 #define ToString(p) CCECTypeUtils::ToString(p)
  44
  45 CCECAudioSystem::CCECAudioSystem(CCECProcessor *processor, cec_logical_address address, uint16_t iPhysicalAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */) :
  46     CCECBusDevice(processor, address, iPhysicalAddress),
  47     m_systemAudioStatus(CEC_SYSTEM_AUDIO_STATUS_ON),
  48     m_audioStatus(CEC_AUDIO_MUTE_STATUS_MASK)
  49 {
  50   m_type = CEC_DEVICE_TYPE_AUDIO_SYSTEM;
  51 }
  52
  53 bool CCECAudioSystem::SetAudioStatus(uint8_t status)
  54 {
  55   CLockObject lock(m_mutex);
  56   if (m_audioStatus != status)
  57   {
  58     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %s (%X): audio status changed from %2x to %2x", GetLogicalAddressName(), m_iLogicalAddress, m_audioStatus, status);
  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     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));
  72     m_systemAudioStatus = mode;
  73     return true;
  74   }
  75
  76   return false;
  77 }
  78
  79 bool CCECAudioSystem::TransmitAudioStatus(cec_logical_address dest)
  80 {
  81   uint8_t state;
  82   {
  83     CLockObject lock(m_mutex);
  84     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %x -> %x: audio status '%2x'", m_iLogicalAddress, dest, m_audioStatus);
  85     state = m_audioStatus;
  86   }
  87
  88   return m_handler->TransmitAudioStatus(m_iLogicalAddress, dest, state);
  89 }
  90
  91 bool CCECAudioSystem::TransmitSetSystemAudioMode(cec_logical_address dest)
  92 {
  93   cec_system_audio_status state;
  94   {
  95     CLockObject lock(m_mutex);
  96     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %x -> %x: set system audio mode '%2x'", m_iLogicalAddress, dest, m_audioStatus);
  97     state = m_systemAudioStatus;
  98   }
  99
 100   return m_handler->TransmitSetSystemAudioMode(m_iLogicalAddress, dest, state);
 101 }
 102
 103 bool CCECAudioSystem::TransmitSystemAudioModeStatus(cec_logical_address dest)
 104 {
 105   cec_system_audio_status state;
 106   {
 107     CLockObject lock(m_mutex);
 108     LIB_CEC->AddLog(CEC_LOG_NOTICE, "<< %x -> %x: system audio mode '%s'", m_iLogicalAddress, dest, ToString(m_systemAudioStatus));
 109     state = m_systemAudioStatus;
 110   }
 111
 112   return m_handler->TransmitSystemAudioModeStatus(m_iLogicalAddress, dest, state);
 113 }
 114
 115 uint8_t CCECAudioSystem::VolumeUp(const cec_logical_address source, bool bSendRelease /* = true */)
 116 {
 117   TransmitKeypress(source, CEC_USER_CONTROL_CODE_VOLUME_UP);
 118   if (bSendRelease)
 119     TransmitKeyRelease(source);
 120
 121   CLockObject lock(m_mutex);
 122   return m_audioStatus;
 123 }
 124
 125 uint8_t CCECAudioSystem::VolumeDown(const cec_logical_address source, bool bSendRelease /* = true */)
 126 {
 127   TransmitKeypress(source, CEC_USER_CONTROL_CODE_VOLUME_DOWN);
 128   if (bSendRelease)
 129     TransmitKeyRelease(source);
 130
 131   CLockObject lock(m_mutex);
 132   return m_audioStatus;
 133 }
 134
 135 uint8_t CCECAudioSystem::MuteAudio(const cec_logical_address source)
 136 {
 137   TransmitKeypress(source, CEC_USER_CONTROL_CODE_MUTE);
 138   TransmitKeyRelease(source);
 139
 140   CLockObject lock(m_mutex);
 141   return m_audioStatus;
 142 }