Core task descriptor, task operations, and task execution state machine. More...

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Data Structures
struct	task_ops
	Operations and callbacks associated with a scheduling task. More...

struct	task
	Core task structure managed by SOF schedulers. More...

Macros
#define	SOF_TASK_PRI_HIGH 0
	Predefined Low-Latency task priority levels.

#define	SOF_TASK_PRI_MED 4
	Priority level 4 - medium.

#define	SOF_TASK_PRI_LOW 9
	Priority level 9 - low (background/idle).

#define	SOF_TASK_DEADLINE_IDLE UINT64_MAX
	Predefined EDF task deadlines.

#define	SOF_TASK_DEADLINE_ALMOST_IDLE (SOF_TASK_DEADLINE_IDLE - 1)
	Almost idle deadline.

#define	SOF_TASK_DEADLINE_NOW 0
	Immediate deadline; run as soon as possible.

#define	SOF_TASK_SKIP_COUNT 0xFFFFu
	Task counter initial value.

Enumerations
enum	task_state { SOF_TASK_STATE_INIT = 0 , SOF_TASK_STATE_QUEUED , SOF_TASK_STATE_PENDING , SOF_TASK_STATE_RUNNING , SOF_TASK_STATE_PREEMPTED , SOF_TASK_STATE_COMPLETED , SOF_TASK_STATE_FREE , SOF_TASK_STATE_CANCEL , SOF_TASK_STATE_RESCHEDULE }
	Lifecycle and execution states of an SOF task. More...

Functions
static bool	task_is_active (struct task *task)
	Check whether a task is active (queued, running, pending, or rescheduling).

static enum task_state	task_run (struct task *task)
	Execute a task's run callback.

static void	task_complete (struct task *task)
	Execute a task's complete callback, if registered.

static uint64_t	task_get_deadline (struct task *task)
	Retrieve a task's deadline timestamp.

int	task_main_start (struct sof *sof)
	Start the main SOF background task.

int	start_complete (void)
	Signal completion of system startup.

Detailed Description

Core task descriptor, task operations, and task execution state machine.

Data Structures