.... and add configure switch for it.
/etc might be on a read-only partition which is not suitable for dynamic
data such as the mixer settings. Hence move the location of asound.state
to /var/lib.
This is based on a patch from Ubuntu/Debian which hardcoded the pah in
/var/lib.
Signed-off-by: Lennart Poettering <mznyfn@0pointer.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add minimal systemd and udev support to alsactl so that mixer settings
are restored at boot, when sound cards are plugged in and saved on
shutdown.
This is similar to existing udev/init script solutions in various
distributions.
Note that alsactl is called both synchronously from the udev rules as
well as asynchronously at boot. This is intended, and to ensure two
things:
- At boot the asound.state file might not be readable, since it resides
on a different file system. That means exclusively restoring sound card
settings from udev rules will no suffice, since if the rule is
executed at early boot (for example within udev settle) then the file
will no be readable and cannot be restored.
- We need to ensure that applications monitoring sound cards coming and
going (such as PA) must not get these events before the mixer settings
have been restored. That means the mixer settings must be restored
synchronously withing the udev rules, before the events are passed on
to the apps.
That basically means we need to restore the settings once in udev, to
deal with sound cards becoming available during runtime. And once in
early boot to deal with coldplugged soundcards whose data files might
not have been available at time of plugging. Hence we call alsactl
twice: one from the udev rule, and once from he systemd unit file.
Signed-off-by: Lennart Poettering <mznyfn@0pointer.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The inactive controls are stored, but they are not restored
when they are marked inactive in the state file or in the
driver.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Make the comment node a separate node in the state file (join=0), and
move it after the other fields of the respective control.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
When the range of a control has changed between driver versions, it is a
good idea to restore the same dB value of the control. However,
computing the dB value by interpolating betweem the min/max dB values
duplicates alsa-lib's TLV functions and does not even work for controls
with a linear dB range.
A simple conversion to dB and back can be done if we add the dB value(s)
to the saved state.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reserving new space from the stack in every loop iteration is not
necessary, so move the call to snd_ctl_elem_id_alloca outside where it
is executed only once.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
To save a call to snd_config_set_xxx, replace the calls to
snd_config_make_xxx with snd_config_imake_xxx.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Also, make the initialization & restore logic for one card similar to
multiple card initialization & restore.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
If initialization file (-i option) does not exists, the free_space()
function was called with NULL pointer.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
To increase configuration readability, add CTL{do_search} and CTL{do_count}
actions. The old PROGRAM=="__ctl_search" notion is also allowed.
Add CTL{write} to XML documentation.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Initialize Speaker volume to 0dB as well as Headphone when Master
is present. Also initialize Headphone,1 for machines with dual
headphones.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
- handle virtual master for T61 and TM8100
- when master volume control is available, initialize PCM & CD playback
volumes to 0dB
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The sysfsroot path is /sys/class/sound/cardX/device for recent kernels.
The ACCESS check honors the variable substutition now. Added $config{key}
substitution.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
alsactl.c:166: warning: assignment from incompatible pointer type
init_utils_string.c:21: warning: ‘string_is_true’ defined but not used
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Some HDA codecs have shifted dB range (-34.5dB - 12dB) for PCM and CD
inputs. Use default 0dB value for them.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Another bug/issue I tripped over when compiling alsa-utils in an
environment using uClibc to supply the C library functions. Here I have
enabled some old BSD style functions. The attached patch will honor
them if they are enabled.
Without this patch I get a redefined error during compile.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix check when driver contains more controls than state file. In this case,
initialization procedure should be run, too.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
By doing this we move them from the .data section to .rodata setion,
or from .data.rel to .data.rel.ro.
The .rodata section is mapped directly from the on-disk file, which is
always a save, while .data.rel.ro is mapped directly when using
prelink, which is a save in a lot of cases.
Signed-off-by: Diego E. 'Flameeyes' Pettenò <flameeyes@gmail.com>
This way the compiler can assume more information about their
interface for optimisation.
Signed-off-by: Diego E. 'Flameeyes' Pettenò <flameeyes@gmail.com>
Added the check of xmlto program in configure script.
Also added --disable-xmlto configure option for systems with a broken
or older xmlto that doesn't work properly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
