The syntax is simple:
If./any-if-identificator/ {
Condition {
Type /type_here/
/optional defines/
}
True {
/block used when condition is evaluated as true/
}
False {
/block used when condition is evaluated as false/
}
}
The Type "ControlExists" is implemented:
Condition {
Type ControlExists
Device "hw:${CardId}"
Control "iface=CARD,name='Headphone Jack'"
}
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Those two variables are supported:
${ConfName} - configuration file name
${CardId} - card identification string (like PCH)
${CardName} - card name (driver)
${CardLongName} - card long name (driver)
${env:ENV_NAME} - returns the environment variable ENV_NAME
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Some clients like pulseaudio wants to access the multiple instances
of sound cards. This patch adds prefixes like "hw:" to the card_name
argument to handle this. The card index (value) or card identification
(string) can be used for this prefix.
Also the prefix "strict:" was added to avoid the driver name and
driver long name matching. It might be useable for use case
configurations which are not bound to the one sound card.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
- various cleanups (more straight code and allocations)
- do not add the base config path /usr/share/alsa to the
explicit include list of directories
(it's not wanted for ucm configs)
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Many UCM profiles include the UCM profile components under ucm/*
subdirectories and thusly put <searchdir:ucm> at each place. This is
rather cumbersome.
This patch makes the UCM parser to set the default include path, so
that each profile no longer needs to set searchdir. All the
<searchdir:ucm> lines currently found in the profiles are removed
gracefully, too.
For the needed implementation, a new helper,
_snd_config_load_with_include() is introduced. It's not exported,
only for the use inside alsa-lib.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
We have placed UCM profile snippets to be included by the main config
files also in the same directory, src/conf/ucm, it confuses alsaucm
program that scans over all subdirectories. It thinks such a file is
also the main config file, and spews errors like:
% alsaucm
ALSA lib utils.c:67:(uc_mgr_config_load) could not open configuration file /usr/share/alsa/ucm/bytcr/bytcr.conf
ALSA lib parser.c:1427:(load_master_config) error: could not parse configuration for card bytcr
alsaucm: unable to obtain card list: No such file or directory
Actually we already defined the subdirectory for such components, and
they are skipped at parsing the main configs. So we just need to move
the files there -- this is what's done here.
One more thing done here is to add a new component subdirectory,
platforms, for definitions bytcr/* that don't match with neither the
existing ones (codecs nor dsps).
Suggested-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The board configuration file and verb conf file are allowed to be
in the folder named of card_long_name, so when finding the verb conf
file, we need to check if it is in the folder of card_long_name or
card_name.
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Currently the top-level config directory is specified only via
configure script option, and is fixed after that. It's inconvenient
when the library is moved to another base directory, or if you want to
use a library code (e.g. with $LD_PRELOAD) with the incompatible
config setups.
This patch allows user to override the top-level config path via the
environment varialbe, $ALSA_CONFIG_DIR. For that, a new helper
function, snd_config_topdir(), was introduced, and the codes referring
to the top config dir have been modified to handle it dynamically.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
After opening a card, this command can show the name of the actually
loaded configuration file, either matches the card name or card long name.
So developers can check if there is a device-sepcific configuration file
available for a given card.
Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Intel DSP platform drivers are used by many different devices. For user
space to differentiate them, ASoC machine drivers may use the DMI info
(vendor-product-version-board) as card long name. Possible card long names
are:
DellInc.-XPS139343-01-0310JH
ASUSTeKCOMPUTERINC.-T100TA-1.0-T100TA
Circuitco-MinnowboardMaxD0PLATFORM-D0-MinnowBoardMAX
...
If we want to define a device-specific UCM config file for a card, we
need to use the card long name as the name of both the directory that
contains the UCM config file and the UCM config file itself, like
longname/longname.conf
When being asked to load configuration file of a card, UCM will try to
find the card in the local machine and get its long name. If the card
long name is available, try to load the file longname/longname.conf to
get the best device-specific configuration; if this file is not available,
fall back to load the default configuration file shortname/shortname.conf
as before.
This update is backward compatible, because if ASoC machine drivers don't
explicity use DMI or other means to set the card long name, ASoC core
will use the card short name as the long name. And so UCM will load the
config file that matches both the card short name and the long name.
Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Users can load a card's UCM configuration file by giving the card short
name or long name, which should not exceed the maximum card long name
defined by the kernel. The kernel uses an 80-character buffer to store
the card long name.
Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
It's using PATH_MAX which is defined there, otherwise the build fails on
musl libc.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A machine device's sequence can enable or disable a component device. So
when executing a machine device's sequence, the enable or disable sequence
of its component devices will also be excecuted.
Components don't define card device cdev in their sequences. So before
executing a component device sequence, UCM manager will
- store cdev defined by the sequence of its parent, the machine device;
- mark itself entering 'component domain'.
Then this cdev will be used to excute the sequence of the component
device.
When UCM manager completes executing the sequence of the component device,
it will leave 'compnent domain' and reset the saved cdev to NULL.
Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A machine device's sequence can enable or disable a component device by
keyword 'enadev' and 'disdev' followed the name of the component device.
UCM sequence parser will find the component device and mark if its enable
or disable sequence is needed by the parent, the machine device.
New element type and struct are defined for the sequence of a component
device. Component devices will be removed from the machine device list
'device_list' of a verb, since we don't want to expose them to audio
servers with original API to list devices for backward compatibility.
A new list 'cmpt_device_list' is used for the component devices of a verb.
Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cards are defined by machines. DSPs embedded in SoC and off-soc codecs
can be taken as components for machines, and can be reused by different
machines/cards. Codec and SoC vendors can define their own UCM config
files. If a codec or DSP is used by a machine, the card configuration file
can include the conf file of the codec and DSP. Later patches will
complete support for this feature.
Two new directories will be used to store the UCM configuration files for
a specific codec or DSP firmware:
- /usr/share/alsa/ucm/dsps ... for DSP embedded in SoC
- /usr/share/alsa/ucm/codecs ... for off-soc codecs
These two directories will be skipped when UCM manager scans the card
directories under /usr/share/alsa/ucm.
Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When calling snd_use_case_geti(uc_mgr, "_devstatus", &lvalue) the code
ends up calling device_status(uc_mgr, NULL), which result in a crash in
strcmp(dev->name, NULL), when there are enabled devices.
This happens because snd_use_case_geti() allows a "_devstatus"
identifier even if it's only supposed to allow the form
"_devstatus/{device}".
So check that the device name is not null.
The same issue occurs with "_modstatus", this change fixes that as well.
Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch enables UCM to set a file in TLV format to kcontrol by:
cset-tlv "name='<kcontrol-name>' <path-to-file>"
This new 'cset-tlv' command will be used to write audio DSP to
specific alsa control, where the driver expectes a file in TLV
format.
The TLV file to set to kcontrol will be checked first by file size
not larger than 16 MB, and then examine if the length field reports
correct number of bytes in the TLV file.
Signed-off-by: Hsin-Yu Chao <hychao@chromium.org>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The configure script blindly adds -D_GNU_SOURCE to all build settings,
even on non-GNU systems. This isn't too much of a big deal (even if
it uses the wrong variable -- CFLAGS instead of CPPFLAGS), except that
the alsa-lib source itself determines whether to use GNU features when
this is defined (such as versionsort). So when we build on non-glibc
systems, we get build failures like:
src/ucm/parser.c:1268:18: error: 'versionsort' undeclared (first use in this function)
#define SORTFUNC versionsort
^
src/ucm/parser.c:1272:54: note: in expansion of macro 'SORTFUNC'
err = scandir(filename, &namelist, filename_filter, SORTFUNC);
^
The correct way to add these flags is to use the autoconf helper
AC_USE_SYSTEM_EXTENSIONS. Unfortunately, that triggers some more
bugs in the alsa build. This macro adds defines to config.h and
not directly to CPPFLAGS, so it relies on files correctly including
config.h before anything else. A number of alsa files do not do
this leading to build failures. The fix there is to shuffle the
includes around so that the local ones come first.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
I submitted earlier a patch that made the value parameter of
snd_use_case_get() non-const, but as that changed the public API, the
patch couldn't be accepted. This is the same patch, modifying the
internal code so that there are fewer issues with constness, but the
public API is left alone (a comment was added to the function
documentation, though, so that hopefully nobody else will try to fix
the same unfixable problem).
Signed-off-by: Tanu Kaskinen <tanu.kaskinen@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If the cdev has not been configured explicitly, use the PlaybackCTL
or CaptureCTL value if one of them is set. If neither are set, or if
both are set to different values, then there's no sensible default, so
executing the sequence should fail. The previous code probably tried
to implement this logic, but it was buggy.
Also use more descriptive variable names than "cdev1" and "cdev2".
Signed-off-by: Tanu Kaskinen <tanu.kaskinen@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
I assume the intention was to use cdev1 for PlaybackCTL and cdev2 for
CaptureCTL, but cdev1 was being used for both and cdev2 was not used
for anything.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
with cset command, UCM set kcontrol parameters directly:
cset "name='<KCONTROL_NAME>' 1<,2,3,...>"
This patch enables UCM to set kcontrol with parameters from
configure file:
cset-bin-file "name='<KCONTROL_NAME>' <path/to/file>"
where "cset-bin-file" is a newly added keyword alongside of "cset",
to indicate cset with binary data in file.
The binary data in file is parameter for audio DSPs, and it's just
passed by UCM/ALSA as raw data. The data type of parameter elements
must be byte, and the count must matches driver definition.
Signed-off-by: Lu, Han <han.lu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The compiler warns like:
main.c:1664:9: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized]
and actually there are slight code paths that slip.
This patch adds the proper initializations to 0 to return the success
code in these code paths.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
- rename configure.in to configure.ac
- replace INCLUDES with AM_CPPFLAGS
- modernize AM_INIT_AUTOMAKE invocation
Signed-off-by: Patrick Welche <prlw1@cam.ac.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Now with the previous rewrite of execute_cset(), the cset string is no
longer modified, thus we can pass const safely.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The cset command parsing in ucm/main.c assumes implicitly that the
argument contains no space, thus an example below wouldn't work:
cset "name='Input Select' Digital Mic"
This patch introduces a new internal API function
__snd_ctl_ascii_elem_id_parse() to improve the cset parser.
Reported-by: Tanu Kaskinen <tanu.kaskinen@digia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
alloc_str_list() sets the result to NULL too, so this patch
makes the behavior more consistent. This also fixes a crash
in PulseAudio, because PulseAudio assumes that
snd_use_case_get_list() always initializes the result, and
since snd_use_case_get_list() uses get_list20(), this
assumption didn't hold.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
