cec: refactor CEC read/write. keep a single lock for all writes, not one per device
[deb_libcec.git] / src / lib / devices / CECAudioSystem.cpp
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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"
a1f8fb1b 34#include "../CECProcessor.h"
c4098482 35#include "../implementations/CECCommandHandler.h"
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36
37using namespace CEC;
38
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39#define ToString(p) m_processor->ToString(p)
40
51b2a094 41CCECAudioSystem::CCECAudioSystem(CCECProcessor *processor, cec_logical_address address, uint16_t iPhysicalAddress /* = 0 */) :
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42 CCECBusDevice(processor, address, iPhysicalAddress),
43 m_systemAudioStatus(CEC_SYSTEM_AUDIO_STATUS_ON),
44 m_audioStatus(CEC_AUDIO_MUTE_STATUS_MASK)
51b2a094 45{
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46 m_type = CEC_DEVICE_TYPE_AUDIO_SYSTEM;
47}
48
15d1a84c 49bool CCECAudioSystem::SetAudioStatus(uint8_t status)
c4098482 50{
5e5637c6 51 CLockObject lock(&m_writeMutex);
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52 if (m_audioStatus != status)
53 {
54 CStdString strLog;
15d1a84c 55 strLog.Format(">> %s (%X): audio status changed from %2x to %2x", GetLogicalAddressName(), m_iLogicalAddress, m_audioStatus, status);
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56 AddLog(CEC_LOG_DEBUG, strLog.c_str());
57
58 m_audioStatus = status;
59 return true;
60 }
61
62 return false;
63}
64
aa517a0d 65bool CCECAudioSystem::SetSystemAudioModeStatus(const cec_system_audio_status mode)
c4098482 66{
5e5637c6 67 CLockObject lock(&m_writeMutex);
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68 if (m_systemAudioStatus != mode)
69 {
70 CStdString strLog;
aa517a0d 71 strLog.Format(">> %s (%X): system audio mode status changed from %s to %s", GetLogicalAddressName(), m_iLogicalAddress, ToString(m_systemAudioStatus), ToString(mode));
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72 AddLog(CEC_LOG_DEBUG, strLog.c_str());
73
74 m_systemAudioStatus = mode;
75 return true;
76 }
77
78 return false;
51b2a094 79}
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80
81bool CCECAudioSystem::TransmitAudioStatus(cec_logical_address dest)
82{
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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 }
e5e86c76 91
8fa35473 92 return m_handler->TransmitAudioStatus(m_iLogicalAddress, dest, state);
a1f8fb1b 93}
cf0ecd85 94
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95bool CCECAudioSystem::TransmitSetSystemAudioMode(cec_logical_address dest)
96{
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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 }
aa517a0d 105
8fa35473 106 return m_handler->TransmitSetSystemAudioMode(m_iLogicalAddress, dest, state);
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107}
108
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109bool CCECAudioSystem::TransmitSystemAudioModeStatus(cec_logical_address dest)
110{
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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 }
e5e86c76 119
8fa35473 120 return m_handler->TransmitSystemAudioModeStatus(m_iLogicalAddress, dest, state);
cf0ecd85 121}
04e637f9 122
8fa35473 123uint8_t CCECAudioSystem::VolumeUp(void)
04e637f9 124{
a33794d8 125 if (SendKeypress(CEC_USER_CONTROL_CODE_VOLUME_UP))
8fa35473 126 SendKeyRelease();
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127
128 CLockObject lock(&m_mutex);
129 return m_audioStatus;
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130}
131
8fa35473 132uint8_t CCECAudioSystem::VolumeDown(void)
04e637f9 133{
a33794d8 134 if (SendKeypress(CEC_USER_CONTROL_CODE_VOLUME_DOWN))
8fa35473 135 SendKeyRelease();
04e637f9 136
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137 CLockObject lock(&m_mutex);
138 return m_audioStatus;
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139}
140
8fa35473 141uint8_t CCECAudioSystem::MuteAudio(void)
04e637f9 142{
a33794d8 143 if (SendKeypress(CEC_USER_CONTROL_CODE_MUTE))
8fa35473 144 SendKeyRelease();
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145
146 CLockObject lock(&m_mutex);
147 return m_audioStatus;
148}