1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* Copyright (C) 2005-2008 by Daniel Wagner
*
* This file is part of FFADO
* FFADO = Free FireWire (pro-)audio drivers for Linux
*
* FFADO is based upon FreeBoB.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include "libavc/audiosubunit/avc_function_block.h"
#include "libutil/serialize.h"
#include "libutil/cmd_serialize.h"
#include "libieee1394/ieee1394service.h"
#include <cerrno>
const bool bVerbose = false;
using namespace AVC;
using namespace Util;
using namespace Util::Cmd;
short int
getVolume( Ieee1394Service& ieee1394service, int node_id, int ffb_id,
FunctionBlockCmd::EControlAttribute control_attrib )
{
FunctionBlockCmd fbCmd( ieee1394service,
FunctionBlockCmd::eFBT_Feature,
ffb_id,
control_attrib );
fbCmd.setNodeId( node_id );
fbCmd.setSubunitId( 0x00 );
fbCmd.setCommandType( AVCCommand::eCT_Status );
fbCmd.m_pFBFeature->m_audioChannelNumber = 0;
fbCmd.m_pFBFeature->m_controlSelector=FunctionBlockFeature::eCSE_Feature_Volume;
fbCmd.m_pFBFeature->m_pVolume->m_volume = 0;
fbCmd.setVerbose( bVerbose );
if (bVerbose) {
ieee1394service.setVerboseLevel( DEBUG_LEVEL_VERBOSE );
}
if ( !fbCmd.fire() ) {
printf( "cmd failed\n" );
}
if ( bVerbose ) {
CoutSerializer se;
fbCmd.serialize( se );
}
return fbCmd.m_pFBFeature->m_pVolume->m_volume;
}
bool
setVolume( Ieee1394Service& ieee1394service, int node_id, int ffb_id, int vol )
{
FunctionBlockCmd fbCmd( ieee1394service,
FunctionBlockCmd::eFBT_Feature,
ffb_id,
FunctionBlockCmd::eCA_Current );
fbCmd.setNodeId( node_id );
fbCmd.setSubunitId( 0x00 );
fbCmd.setCommandType( AVCCommand::eCT_Control );
fbCmd.m_pFBFeature->m_audioChannelNumber = 0;
fbCmd.m_pFBFeature->m_controlSelector=FunctionBlockFeature::eCSE_Feature_Volume;
fbCmd.m_pFBFeature->m_pVolume->m_volume = vol;
fbCmd.setVerbose( bVerbose );
if (bVerbose) {
ieee1394service.setVerboseLevel( DEBUG_LEVEL_VERBOSE );
}
bool bStatus = fbCmd.fire();
if ( !bStatus ) {
printf( "cmd failed\n" );
}
if ( bVerbose ) {
CoutSerializer se;
fbCmd.serialize( se );
}
return bStatus;
}
bool
doApp( Ieee1394Service& ieee1394service, int node_id, int fb_id, int vol )
{
short int maxVolume = getVolume( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Maximum );
short int minVolume = getVolume( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Minimum );
short int curVolume = getVolume( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Current );
printf( "max volume value = %d\n", maxVolume );
printf( "min volume value = %d\n", minVolume );
printf( "old volume value = %d\n", curVolume);
setVolume( ieee1394service, node_id, fb_id, vol );
curVolume = getVolume( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Current );
printf( "new volume value = %d\n", curVolume );
return true;
}
///////////////////////////
// main
//////////////////////////
int
main(int argc, char **argv)
{
if (argc < 3) {
printf("usage: NODE_ID FB_ID VOL\n");
exit(0);
}
errno = 0;
char* tail;
int node_id = strtol( argv[1], &tail, 0 );
int fb_id = strtol( argv[2], &tail, 0 );
int vol = strtol( argv[3], &tail, 0 );
if (errno) {
perror("argument parsing failed:");
return -1;
}
Ieee1394Service ieee1394service;
if ( !ieee1394service.initialize( 0 ) ) {
fprintf( stderr, "could not set port on ieee1394service\n" );
return -1;
}
doApp( ieee1394service, node_id, fb_id, vol );
return 0;
}
|
