Clocks

include/time/clock.h View source View on GitHub

Structs

clock_base

struct clock_base (2 fields) source

§ freq_khz_t freq_khz

§ uint64_t clock_mult

clock

struct clock (15 fields) source

§ uint64_t (*read)(struct clock *)

gives cycles

§ char *name

§ uint64_t mult

cycle to ns

§ fx32_32_t uncertainty_margin

ns per s

§ freq_khz_t frequency_khz

§ struct list_node list_internal

§ enum clock_state state

§ enum clock_flags flags

§ enum clock_rating rating

§ struct clock_base *base

§ enum err (*enable)(struct clock *)

these expect state changes from OFF/ON

§ void (*disable)(struct clock *)

§ void (*suspend)(struct clock *)

§ void (*resume)(struct clock *)

§ void *private

Enums

clock_rating

enum clock_rating (6 variants) source

§ CLOCK_RATING_UNSUITABLE

§ CLOCK_RATING_BASE

§ CLOCK_RATING_GOOD

§ CLOCK_RATING_BETTER

§ CLOCK_RATING_BEST

§ CLOCK_RATING_MAX

clock_flags

enum clock_flags (5 variants) source

§ CLOCK_FLAG_NONE = 0

§ CLOCK_FLAG_WATCHDOG = 1

§ CLOCK_FLAG_HRES = 1 << 1

§ CLOCK_FLAG_UNSTABLE = 1 << 2

§ CLOCK_FLAG_TIMESTAMP_SOURCE = 1 << 3

This clock is where all of the timestamp_t’s around the kernel are coming from

clock_state

enum clock_state (2 variants) source

§ CLOCK_STATE_OFF

§ CLOCK_STATE_ON

Functions

clock_create

struct clock * clock_create(const char *fmt)

source

clock_register

void clock_register(struct clock *c)

source

clock_unregister

void clock_unregister(struct clock *c)

source

clock_suspend_all

void clock_suspend_all(void)

source

clock_resume_all

void clock_resume_all(void)

source

clocks_init

void clocks_init(void)

source

clock_frequency_to_mult

uint64_t clock_frequency_to_mult(struct clock *clock)

source

clock_cycles_to_ns

time_ns_t clock_cycles_to_ns(struct clock *clock, uint64_t cycles)

source