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