cec: keep a separate write and read lock in CCECBusDevice
[deb_libcec.git] / 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 CCECAudioSystem::CCECAudioSystem(CCECProcessor *processor, cec_logical_address address, uint16_t iPhysicalAddress /* = 0 */) :
40 CCECBusDevice(processor, address, iPhysicalAddress),
41 m_systemAudioStatus(CEC_SYSTEM_AUDIO_STATUS_ON),
42 m_audioStatus(CEC_AUDIO_MUTE_STATUS_MASK)
43 {
44 m_type = CEC_DEVICE_TYPE_AUDIO_SYSTEM;
45 }
46
47 bool CCECAudioSystem::SetAudioStatus(uint8_t status)
48 {
49 CLockObject lock(&m_writeMutex);
50 if (m_audioStatus != status)
51 {
52 CStdString strLog;
53 strLog.Format(">> %s (%X): audio status changed from %2x to %2x", GetLogicalAddressName(), m_iLogicalAddress, m_audioStatus, status);
54 AddLog(CEC_LOG_DEBUG, strLog.c_str());
55
56 m_audioStatus = status;
57 return true;
58 }
59
60 return false;
61 }
62
63 bool CCECAudioSystem::SetSystemAudioMode(const cec_system_audio_status mode)
64 {
65 CLockObject lock(&m_writeMutex);
66 if (m_systemAudioStatus != mode)
67 {
68 CStdString strLog;
69 strLog.Format(">> %s (%X): system audio mode changed from %s to %s", GetLogicalAddressName(), m_iLogicalAddress, CCECCommandHandler::ToString(m_systemAudioStatus), CCECCommandHandler::ToString(mode));
70 AddLog(CEC_LOG_DEBUG, strLog.c_str());
71
72 m_systemAudioStatus = mode;
73 return true;
74 }
75
76 return false;
77 }
78
79 bool CCECAudioSystem::SetSystemAudioMode(const cec_command &command)
80 {
81 SetSystemAudioMode((command.parameters.size == 0) ?
82 CEC_SYSTEM_AUDIO_STATUS_OFF :
83 CEC_SYSTEM_AUDIO_STATUS_ON);
84
85 return TransmitAudioStatus(command.initiator);
86 }
87
88 bool CCECAudioSystem::TransmitAudioStatus(cec_logical_address dest)
89 {
90 CLockObject lock(&m_writeMutex);
91 CStdString strLog;
92 strLog.Format("<< %x -> %x: audio status '%2x'", m_iLogicalAddress, dest, m_audioStatus);
93 AddLog(CEC_LOG_NOTICE, strLog);
94
95 cec_command command;
96 cec_command::Format(command, m_iLogicalAddress, dest, CEC_OPCODE_REPORT_AUDIO_STATUS);
97 command.parameters.PushBack(m_audioStatus);
98
99 return m_processor->Transmit(command);
100 }
101
102 bool CCECAudioSystem::TransmitSystemAudioModeStatus(cec_logical_address dest)
103 {
104 CLockObject lock(&m_writeMutex);
105 CStdString strLog;
106 strLog.Format("<< %x -> %x: system audio mode '%s'", m_iLogicalAddress, dest, CCECCommandHandler::ToString(m_systemAudioStatus));
107 AddLog(CEC_LOG_NOTICE, strLog);
108
109 cec_command command;
110 cec_command::Format(command, m_iLogicalAddress, dest, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
111 command.parameters.PushBack((uint8_t) m_systemAudioStatus);
112
113 return m_processor->Transmit(command);
114 }
115
116 uint8_t CCECAudioSystem::VolumeUp(bool bWait /* = true */)
117 {
118 if (SendKeypress(CEC_USER_CONTROL_CODE_VOLUME_UP))
119 SendKeyRelease(bWait);
120
121 CLockObject lock(&m_mutex);
122 return m_audioStatus;
123 }
124
125 uint8_t CCECAudioSystem::VolumeDown(bool bWait /* = true */)
126 {
127 if (SendKeypress(CEC_USER_CONTROL_CODE_VOLUME_DOWN))
128 SendKeyRelease(bWait);
129
130 CLockObject lock(&m_mutex);
131 return m_audioStatus;
132 }
133
134 uint8_t CCECAudioSystem::MuteAudio(bool bWait /* = true */)
135 {
136 if (SendKeypress(CEC_USER_CONTROL_CODE_MUTE))
137 SendKeyRelease(bWait);
138
139 CLockObject lock(&m_mutex);
140 return m_audioStatus;
141 }