diff options
Diffstat (limited to 'include/time.h')
-rw-r--r-- | include/time.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h index a1149522ed..71446c3171 100644 --- a/include/time.h +++ b/include/time.h @@ -70,4 +70,47 @@ uint64_t usec_to_tick(unsigned long usec); (time_after_eq(a,b) && \ time_before(a,c)) +/** + * usec2ticks() - Convert microseconds to internal ticks + * + * @usec: Value of microseconds to convert + * @return Corresponding internal ticks value, calculated using get_tbclk() + */ +ulong usec2ticks(unsigned long usec); + +/** + * ticks2usec() - Convert internal ticks to microseconds + * + * @ticks: Value of ticks to convert + * @return Corresponding microseconds value, calculated using get_tbclk() + */ +ulong ticks2usec(unsigned long ticks); + +/** + * wait_ticks() - waits a given number of ticks + * + * This is an internal function typically used to implement udelay() and + * similar. Normally you should use udelay() or mdelay() instead. + * + * @ticks: Number of ticks to wait + */ +void wait_ticks(unsigned long ticks); + +/** + * timer_get_us() - Get monotonic microsecond timer + * + * @return value of monotonic microsecond timer + */ +unsigned long timer_get_us(void); + +/** + * get_ticks() - Get the current tick value + * + * This is an internal value used by the timer on the system. Ticks increase + * monotonically at the rate given by get_tbclk(). + * + * @return current tick value + */ +uint64_t get_ticks(void); + #endif /* _TIME_H */ |