busy_sim.h File Reference

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Typedefs
typedef void(*	busy_sim_cb_t) (void)

Functions
void	busy_sim_start (uint32_t active_avg, uint32_t active_delta, uint32_t idle_avg, uint32_t idle_delta, busy_sim_cb_t cb)
	Start busy simulator.
void	busy_sim_stop (void)
	Stop busy simulator.

Typedef Documentation

busy_sim_cb_t

typedef void(* busy_sim_cb_t) (void)

Function Documentation

busy_sim_start()

void busy_sim_start	(	uint32_t	active_avg,
		uint32_t	active_delta,
		uint32_t	idle_avg,
		uint32_t	idle_delta,
		busy_sim_cb_t	cb )

Start busy simulator.

When started, it is using counter device to generate interrupts at random intervals and busy loop for random period of time in that interrupt. Interrupt source and priority is configured in the devicetree. Default entropy source is used for getting random numbers. System work queue is used to get random values and keep them in a ring buffer.

Parameters

active_avg	Average time of busy looping in the counter callback (in microseconds).
active_delta	Specifies deviation from average time of busy looping (in microseconds).
idle_avg	Average time of counter alarm timeout (in microseconds).
idle_delta	Specifies deviation from average time of counter alarm (in microseconds).
cb	Callback called from the context of the busy simulator timeout. If ZLI interrupt is used for busy simulator counter then kernel API cannot be used from that callback. Callback is called before busy waiting.

busy_sim_stop()

void busy_sim_stop

(

void

)

Stop busy simulator.