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/*
* Copyright (c) 2021-2023 HPMicro
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#include "hpm_common.h"
#include "hpm_rtc_drv.h"
hpm_stat_t rtc_config_time(RTC_Type *base, time_t time)
{
base->SECOND = (uint32_t)time;
return status_success;
}
time_t rtc_get_time(RTC_Type *base)
{
time_t time = (time_t)base->SECOND;
return time;
}
struct timeval rtc_get_timeval(RTC_Type *base)
{
struct timeval tm;
base->SUB_SNAP = 0; /* Lock shadow registers first */
/* Convert sub-second ticks into micro-second */
uint32_t sub_sec = (uint32_t)((base->SUB_SNAP >> 17) * 1.0 * 1000000 / 32768);
tm.tv_sec = base->SEC_SNAP;
tm.tv_usec = sub_sec;
return tm;
}
hpm_stat_t rtc_config_alarm(RTC_Type *base, rtc_alarm_config_t *config)
{
hpm_stat_t status = status_invalid_argument;
do {
if ((config == NULL) || (config->index > 1U) || (config->type > RTC_ALARM_TYPE_ABSOLUTE_TIME_ONE_SHOT)) {
break;
}
uint32_t alarm_inc = 0;
uint32_t alarm;
if (config->type == RTC_ALARM_TYPE_ONE_SHOT) {
uint32_t current_sec = base->SECOND;
alarm = current_sec + config->period;
if (alarm < current_sec) {
break;
}
} else if (config->type == RTC_ALARM_TYPE_PERIODIC) {
uint32_t current_sec = base->SECOND;
alarm_inc = config->period;
alarm = current_sec + config->period;
if (alarm < current_sec) {
break;
}
} else {
alarm = config->period;
}
if (config->index == 0U) {
base->ALARM0 = alarm;
base->ALARM0_INC = alarm_inc;
} else {
base->ALARM1 = alarm;
base->ALARM1_INC = alarm_inc;
}
status = status_success;
} while (false);
return status;
}
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