Since glibc-2.43:
For ISO C23, the functions bsearch, memchr, strchr, strpbrk, strrchr,
strstr, wcschr, wcspbrk, wcsrchr, wcsstr and wmemchr that return pointers
into their input arrays now have definitions as macros that return a
pointer to a const-qualified type when the input argument is a pointer
to a const-qualified type.
https://lists.gnu.org/archive/html/info-gnu/2026-01/msg00005.html
Closes: https://github.com/alsa-project/alsa-utils/pull/322
Signed-off-by: Rudi Heitbaum <rudi@heitbaum.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add support for adding enum controls in the topology pre-processor.
Closes: https://github.com/alsa-project/alsa-utils/pull/236
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Remove the call to snd_config_expand_custom() to expand the top-level
input config. And replace it with calls to snd_config_evaluate_string()
for each non-compound config while processing individual objects. This
will allow retreving variable definitions from object attribute values
and global definitions.
Add a new field "current_obj_cfg" to hold the current object config
being pre-processed.
This will facilitate adding simple math expressions for computing
attribute values for objects based on other attributes. For ex: we can
set the expression for buffer size as follows:
buffer_size "$[($in_channels * 48) * 4]"
The buffer_size attribute value will be computed with the attribute
value "in_channels" based on the expression above. So if $in_channels =
2, buffer_size will be evaluated to 384.
Additionally this change also permits computing attribute values based
on previously computed values. For example:
buffer_size "$[($in_channels * 48) * 4]"
dma_buffer_size "$[$buffer_size * 2]"
dma_buffer_size will be computed as 768. Note that the order of
definitions for buffer_size and dma_buffer_size matters because the
evaluation for dma_buffer_size depends on the evaluation of buffer_size.
In order to conform to this, the tplg_object_copy_and_add_param() is
modified to add attribute configs from class config to an object using
snd_config_before() instead of snd_config_add().
With this change, we no longer need to set the auto_attr_updater for
buffer type widget objects. So remove it.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Allow support for adding data section for kcontrols.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Switch source and sink widgets in the DAPM route.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add the function to compute the value for the
"size" automatic attribute in the buffer objects.
Signed-off-by: Chao Song <chao.song@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This patch adds check to the return pointer from strchr,
because it may be null and cause segment fault, if component
is not properly constructed.
Fixes: https://github.com/alsa-project/alsa-utils/pull/91
Signed-off-by: Chao Song <chao.song@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
DAPM route objects such as:
Object.Base.route."1" {
source "dai.SSP.0.dai.capture"
sink "buffer.2.1"
}
will be converted to:
SectionGraph."Endpoint.route.1" {
index 0
lines [
"dai.SSP.0.capture, , buffer.2.1"
]
}
If the source/sink names are references to objects within a parent pipeline
object, the index attribute value can be skipped and it will be
populated when the object is pre-processed
Object.Pipeline.volume-capture."1" {
Object.Base.route."1" {
source "pga..0"
sink "buffer..0"
}
}
The reference pga..0 will need to be resolved to
get the widget name pga.1.0 and buffer..0 will
be resolved to buffer.1.0 before creating the SectionGraph as follows:
SectionGraph."volume-capture.1.route.1" {
index 2
lines [
"pga.1.0, , buffer.1.0"
]
}
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add support for pre-processing mixer and byte control objects.
For ex: a pga widget with a mixer control as follows:
Object.pga"0" {
...
mixer.0 {
index 2
max 32
name "2 MasterPlaybackControl"
Object.Base.channel."fl" {
shift 0
}
Object.Base.channel."fr" {
}
Object.Base.tlv."vtlv_m64s2" {
Object.Base.scale."m64s2" {
mute 1
}
}
Object.Base.ops."ctl" {
info "volsw"
#256 binds the mixer control to volume get/put handlers
get 256
put 256
}
access [
read_write
tlv_read
]
}
}
Would be converted to:
SectionControlMixer.'2 Master Playback Volume' {
index 2
max 32
channel {
fl {
reg 1
}
fr {
reg 1
shift 1
}
}
tlv "vtlv_m64s2"
ops.0 {
info volsw
get 256
put 256
}
access [
read_write
tlv_read
]
}
and the SectionWidget for pga.2.0 would be updated to add the mixer references as follows:
SectionWidget.'pga.2.0' {
...
mixer [
"2 Master Playback Volume"
]
}
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add support for pre-processing scale/ops/channel objects
and adding the converted config to the relevant sections.
For ex:
Object.Base.channel."fl" {
shift 0
reg 1
}
Object.Base.channel."fr" {
reg 1
shift 1
}
Will be converted to:
channel {
fl {
reg 1
shift 0
}
fr {
reg 1
shift 1
}
}
And added to the SectionControlMixer that this object belongs to.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add support for pre-processing TLV objects
For example:
Object.Base.tlv."vtlv_m64s2" {}
will be converted to:
SectionTLV.'vtlv_m64s2' {}
And the mixer controle section will be updated to add
the reference to the tlv object.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
