xref: /dragonfly/etc/rc.d/mixer (revision 35e996c9) 
1#!/bin/sh -
2#
3# Copyright (c) 2004  The FreeBSD Project
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# $FreeBSD: head/etc/rc.d/mixer 240336 2012-09-11 05:04:59Z obrien $
28#
29
30# PROVIDE: mixer
31# REQUIRE: FILESYSTEMS
32# KEYWORD: nojail shutdown
33
34. /etc/rc.subr
35
36name="mixer"
37rcvar="mixer_enable"
38stop_cmd="mixer_stop"
39start_cmd="mixer_start"
40reload_cmd="mixer_start"
41extra_commands="reload"
42
43#
44# List current mixer devices to stdout.
45#
46list_mixers()
47{
48	( cd /dev ; ls mixer* 2>/dev/null )
49}
50
51#
52# Save state of an individual mixer specified as $1
53#
54mixer_save()
55{
56	local dev
57
58	dev="/dev/${1}"
59	if [ -r ${dev} ]; then
60		/usr/sbin/mixer -f ${dev} -s > /var/db/${1}-state 2>/dev/null
61	fi
62}
63
64#
65# Restore the state of an individual mixer specified as $1
66#
67mixer_restore()
68{
69	local file dev
70
71	dev="/dev/${1}"
72	file="/var/db/${1}-state"
73	if [ -r ${dev} -a -r ${file} ]; then
74		/usr/sbin/mixer -f ${dev} `cat ${file}` > /dev/null
75	fi
76}
77
78#
79# Restore state of all mixers
80#
81mixer_start()
82{
83	local mixer
84
85	for mixer in `list_mixers`; do
86		mixer_restore ${mixer}
87	done
88}
89
90#
91# Save the state of all mixers
92#
93mixer_stop()
94{
95	local mixer
96
97	for mixer in `list_mixers`; do
98		mixer_save ${mixer}
99	done
100}
101
102load_rc_config $name
103run_rc_command "$1"
104