change the alsa dev.d script that runs on udev add events to a program
that:
a) runs alsactl restore if there is a saved config b) unmutes playback
channels if there isn't
#132575
This commit is contained in:
Bill Nottingham
parent
f6b8931caa
commit
6c53f87076
@ -1,12 +1,12 @@
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Summary: Advanced Linux Sound Architecture (ALSA) utilities
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Name: alsa-utils
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Version: 1.0.8
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Release: 3
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Release: 4
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License: GPL
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Group: Applications/Multimedia
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URL: http://www.alsa-project.org/
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Source: ftp://ftp.alsa-project.org/pub/utils/alsa-utils-%{version}%{?prever}.tar.bz2
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Source2: alsa.dev
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Source2: salsa.c
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#Source3: xinit-alsa-launch.sh
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#Patch1: alsa-utils-1.0.7-alsa-launch.patch
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BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
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@ -28,6 +28,7 @@ Architecture (ALSA).
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autoreconf -f -i
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%configure CFLAGS="$RPM_OPT_FLAGS" --sbindir=/sbin
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%{__make} %{?_smp_mflags}
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%{__cc} $RPM_OPT_FLAGS -o salsa %{SOURCE2} -lasound
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%install
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%{__rm} -rf ${RPM_BUILD_ROOT}
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@ -40,7 +41,7 @@ mkdir -p $RPM_BUILD_ROOT/%{_sbindir}
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ln -s ../../sbin/alsactl $RPM_BUILD_ROOT/%{_sbindir}/alsactl
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mkdir -p -m755 $RPM_BUILD_ROOT/etc/dev.d/sound
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install -m 755 %{SOURCE2} $RPM_BUILD_ROOT/etc/dev.d/sound/alsa.dev
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install -m 755 salsa $RPM_BUILD_ROOT/etc/dev.d/sound/alsa.dev
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%clean
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%{__rm} -rf $RPM_BUILD_ROOT
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@ -59,6 +60,11 @@ install -m 755 %{SOURCE2} $RPM_BUILD_ROOT/etc/dev.d/sound/alsa.dev
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%changelog
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* Fri Apr 1 2005 Bill Nottingham <notting@redhat.com> 1.0.8-4
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- replace the dev.d script with a program that calls alsactl to
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restore the volume if there is a saved config, and just unmutes
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the playback channels if there isn't one (#132575)
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* Mon Mar 7 2005 Martin Stransky <stransky@redhat.com>
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- rebuilt
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147
salsa.c
Normal file
147
salsa.c
Normal file
@ -0,0 +1,147 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <alsa/asoundlib.h>
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#define ALSA_CONFIG_PATH "/etc/asound.state"
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int get_card_number()
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{
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char *devname, *action;
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action = getenv("ACTION");
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if (!action || strcmp(action,"add"))
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return -1;
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devname = getenv("DEVNAME");
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if (!devname)
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return -1;
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if (!strncmp(devname,"/dev/snd/controlC",17))
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return atoi(devname+17);
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if (!strncmp(devname,"/dev/snd/pcmC",13))
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return atoi(devname+13);
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return -1;
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}
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int has_config(int index)
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{
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int rc = 0;
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snd_config_t *config, *control;
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snd_input_t *in;
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snd_ctl_t *handle;
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snd_ctl_card_info_t *info;
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const char *id;
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char path[32];
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rc = snd_config_top(&config);
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if (rc < 0)
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goto out;
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rc = snd_input_stdio_open(&in, ALSA_CONFIG_PATH, "r");
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if (rc >= 0) {
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rc = snd_config_load(config, in);
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snd_input_close(in);
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if (rc < 0)
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goto out;
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}
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sprintf(path, "hw:%d", index);
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rc = snd_ctl_open(&handle, path, 0);
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if (rc < 0)
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goto out;
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snd_ctl_card_info_alloca(&info);
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rc = snd_ctl_card_info(handle, info);
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if (rc < 0)
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goto out_close;
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id = snd_ctl_card_info_get_id(info);
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rc = snd_config_searchv(config, &control, "state", id, "control", 0);
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out_close:
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snd_ctl_close(handle);
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out:
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return !rc;
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}
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int run_alsactl(int index)
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{
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char *args[] = { "/sbin/alsactl", "restore", NULL, NULL };
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char num[10];
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sprintf(num,"%d",index);
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args[2] = num;
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execv(args[0],args);
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return 1;
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}
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int frob_mixer(int index)
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{
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int rc = 0;
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char card[32];
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snd_mixer_t *handle;
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snd_mixer_selem_id_t *sid;
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snd_mixer_elem_t *elem;
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snd_mixer_selem_id_alloca(&sid);
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sprintf(card,"hw:%d",index);
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if ((rc = snd_mixer_open(&handle, 0)) < 0) {
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return rc;
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}
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if ((rc = snd_mixer_attach(handle, card)) < 0) {
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goto out;
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}
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if ((rc = snd_mixer_selem_register(handle, NULL, NULL)) < 0) {
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goto out;
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}
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rc = snd_mixer_load(handle);
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if (rc < 0) {
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goto out;
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}
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for (elem = snd_mixer_first_elem(handle); elem; elem = snd_mixer_elem_next(elem)) {
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long pmin, pmax;
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int c;
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snd_mixer_selem_get_id(elem, sid);
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snd_mixer_selem_get_playback_volume_range(elem, &pmin, &pmax);
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for (c = 0; c < SND_MIXER_SCHN_LAST; c++) {
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if (snd_mixer_selem_has_capture_channel(elem, c)) {
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if (snd_mixer_selem_has_capture_volume(elem))
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snd_mixer_selem_set_capture_volume(elem, c, 0);
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if (!strcmp(snd_mixer_selem_id_get_name(sid),"CD")) {
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if (snd_mixer_selem_has_capture_switch(elem))
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snd_mixer_selem_set_capture_switch(elem, c, 1);
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} else {
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if (snd_mixer_selem_has_capture_switch(elem))
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snd_mixer_selem_set_capture_switch(elem, c, 0);
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if (snd_mixer_selem_has_playback_switch(elem))
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snd_mixer_selem_set_playback_switch(elem, c, 0);
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if (snd_mixer_selem_has_playback_volume(elem))
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snd_mixer_selem_set_playback_volume(elem, c, 0);
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}
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}
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if (snd_mixer_selem_has_playback_channel(elem, c)) {
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if (!snd_mixer_selem_has_capture_channel(elem, c) ||
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!strcmp(snd_mixer_selem_id_get_name(sid),"CD")) {
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if (snd_mixer_selem_has_playback_switch(elem))
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snd_mixer_selem_set_playback_switch(elem, c, 1);
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if (snd_mixer_selem_has_playback_volume(elem))
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snd_mixer_selem_set_playback_volume(elem, c, pmin + (pmax - pmin) * 0.75);
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}
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}
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}
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}
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out:
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snd_mixer_close(handle);
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return rc;
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}
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int main(int argc, char **argv)
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{
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int i;
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i = get_card_number();
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if (i < 0)
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return 0;
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if (has_config(i))
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return run_alsactl(i);
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else
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return frob_mixer(i);
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}
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