Creating a Pipeline¶
The scheduling component (
sched_comp) is configured by the driver inside
the IPC request. It is usually set to the dai component id for pipelines that
are attached to a dai instance and are driven by that dai’s IO events.
Executing an Operation¶
Most of the pipeline functions sets the operation id and executes a common
component_op_downstream() in case of a playback path or
Propagating the Operation Downstream¶
Propagating the Operation Upstream¶
comp_op_upstream() algorithm is identical except for the loop at the end that runs over the sources and calls itself recursively for producers.
Configuring Audio Parameters & Preparing for Use¶
A pipeline’s task (see _Processing_) may be scheduled at a certain point in time using
pipeline_schedule_copy(start). In order to schedule the next stream copy operation in idle (see pre-loader),
pipeline_schedule_copy_idle() should be used.