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drivers/alarm: modify the default precision of up_perf_gettime to ns

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Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
This commit is contained in:
yinshengkai 2023-08-30 17:48:55 +08:00 committed by Petro Karashchenko
parent 79004411b4
commit 15f88804ca
1 changed files with 12 additions and 13 deletions
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25
drivers/timers/arch_alarm.c
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@ -36,8 +36,8 @@
#define CONFIG_BOARD_LOOPSPER10USEC ((CONFIG_BOARD_LOOPSPERMSEC+50)/100) #define CONFIG_BOARD_LOOPSPER10USEC ((CONFIG_BOARD_LOOPSPERMSEC+50)/100)
#define CONFIG_BOARD_LOOPSPERUSEC ((CONFIG_BOARD_LOOPSPERMSEC+500)/1000) #define CONFIG_BOARD_LOOPSPERUSEC ((CONFIG_BOARD_LOOPSPERMSEC+500)/1000)
#define timespec_to_usec(ts) \ #define timespec_to_nsec(ts) \
((uint64_t)(ts)->tv_sec * USEC_PER_SEC + (ts)->tv_nsec / NSEC_PER_USEC) ((uint64_t)(ts)->tv_sec * NSEC_PER_SEC + (ts)->tv_nsec)
/**************************************************************************** /****************************************************************************
* Private Data * Private Data
@ -53,12 +53,12 @@ static clock_t g_current_tick;
* Private Functions * Private Functions
****************************************************************************/ ****************************************************************************/
static inline void timespec_from_usec(FAR struct timespec *ts, static inline void timespec_from_nsec(FAR struct timespec *ts,
uint64_t microseconds) uint64_t nanoseconds)
{ {
ts->tv_sec = microseconds / USEC_PER_SEC; ts->tv_sec = nanoseconds / NSEC_PER_SEC;
microseconds -= (uint64_t)ts->tv_sec * USEC_PER_SEC; nanoseconds -= (uint64_t)ts->tv_sec * NSEC_PER_SEC;
ts->tv_nsec = microseconds * NSEC_PER_USEC; ts->tv_nsec = nanoseconds;
} }
static void udelay_accurate(useconds_t microseconds) static void udelay_accurate(useconds_t microseconds)
@ -68,7 +68,7 @@ static void udelay_accurate(useconds_t microseconds)
struct timespec delta; struct timespec delta;
ONESHOT_CURRENT(g_oneshot_lower, &now); ONESHOT_CURRENT(g_oneshot_lower, &now);
timespec_from_usec(&delta, microseconds); timespec_from_nsec(&delta, (uint64_t)microseconds * NSEC_PER_USEC);
clock_timespec_add(&now, &delta, &end); clock_timespec_add(&now, &delta, &end);
while (clock_timespec_compare(&now, &end) < 0) while (clock_timespec_compare(&now, &end) < 0)
@ -375,7 +375,7 @@ unsigned long up_perf_gettime(void)
struct timespec ts; struct timespec ts;
ONESHOT_CURRENT(g_oneshot_lower, &ts); ONESHOT_CURRENT(g_oneshot_lower, &ts);
ret = timespec_to_usec(&ts); ret = timespec_to_nsec(&ts);
} }
return ret; return ret;
@ -383,13 +383,12 @@ unsigned long up_perf_gettime(void)
unsigned long up_perf_getfreq(void) unsigned long up_perf_getfreq(void)
{ {
return USEC_PER_SEC; return NSEC_PER_SEC;
} }
void up_perf_convert(unsigned long elapsed, void up_perf_convert(unsigned long elapsed, FAR struct timespec *ts)
FAR struct timespec *ts)
{ {
timespec_from_usec(ts, elapsed); timespec_from_nsec(ts, elapsed);
} }
#endif /* CONFIG_ARCH_PERF_EVENTS */ #endif /* CONFIG_ARCH_PERF_EVENTS */