Some attributes have valid values that need to be converted
to integer tuple values before it is appended to the
object's private data:
For ex, the buffer widget object's "caps" attribute has the
following definition:
DefineAttribute."caps" {
type "string"
# Token reference and type
token_ref "sof_tkn_buffer.word"
constraints {
value_ref "sof_tkn_mem"
valid_values [
"dai"
"host"
"pass"
"comp"
]
tuple_values [
113
113
113
65
]
}
}
Depending on the user input, the value string values for "caps"
will be converted to the appropriate tuple values.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Some attributes may have the token_ref set which is
used to look up the token value for the tuple data
that is appended to the object's private data.
For example, in the buffer widget object:
DefineAttribute."size" {
# Token reference and type
token_ref "sof_tkn_buffer.word"
}
The token_ref must include the reference to the vendor
token object name followed by the type of the tuple.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add a helper function to get attribute type from the
attribute definition and convert them to SND_CONFIG_TYPE_*
values. When no type if provided for an attribute, type
defaults to integer.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Every class must have a unique attribute that will be used
to instantiate the object. The value provided for this
attribute must be unique within the same alsaconf node for
objects of the same class. Add a helper function to get the
name of the attribute that must have a unique value in the
object instance.
For example, when instantiating 2 buffer widgets within a pipeline,
they must be given unique instance attribute values as:
Object.Widget.buffer.0{} and Object.Widget.buffer.1{}.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add helper functions to check if an attribute is
mandatory, immutable or unique in the class definition.
ex: for a host widget component, these are defined
as follows:
attributes {
#
# host objects instantiated within the same alsaconf node must have unique
# direction attribute
#
unique "direction"
mandatory [
"type"
"stream_name"
]
immutable [
"uuid"
]
}
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add a helper function look up attribute definition in the
"DefineAttribute" config in the class definition.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add a helper function to look up the class definition for
an object. ex: for an object instance, Object.Widget.pga.0{}, the
function returns the config pointing to Class.Widget.pga{} in
the input conf.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
