/**
* \internal
* \brief Cleanup Function: Asynchronous event propagation.
*
* This function disables the RTC, clears the RTC COUNT register and
* stops the timer (TC3).
*
* \param test Current test case.
*/
static void cleanup_asynchronous_event_test(const struct test_case *test)
{
rtc_count_disable(&rtc_inst);
rtc_count_set_count(&rtc_inst, 0);
tc_stop_counter(&tc_inst);
events_release(&events);
}
static void _sleep_entry(void)
{
rt_tick_t timeout;
rt_uint32_t ms;
rt_uint32_t count;
system_set_sleepmode(SYSTEM_SLEEPMODE_STANDBY);
timeout = rt_timer_next_timeout_tick() - rt_tick_get();
ms = timeout * (1000 / RT_TICK_PER_SECOND);
rt_kprintf("os tick:%u entry sleep:%u tick\r\n", rt_tick_get(), timeout);
_rtc_timer_start(ms);
system_sleep();
rt_enter_critical();
count = rtc_count_get_count(&rtc_instance);
ms = (count + 32) / 32.768;
rtc_count_disable(&rtc_instance);
sleep_tick_adjust(ms);
timeout = rt_tick_get();
rt_exit_critical();
rt_kprintf("sleep exited, os tick:%u\n", timeout);
}
/**
* \brief Resets the RTC module.
* Resets the RTC to hardware defaults.
*
* \param[in,out] module Pointer to the software instance struct
*/
void rtc_count_reset(struct rtc_module *const module)
{
/* Sanity check arguments */
Assert(module);
Assert(module->hw);
Rtc *const rtc_module = module->hw;
/* Disable module before reset. */
rtc_count_disable(module);
#if RTC_COUNT_ASYNC == true
module->registered_callback = 0;
module->enabled_callback = 0;
#endif
while (rtc_count_is_syncing(module)) {
/* Wait for synchronization */
}
/* Initiate software reset. */
rtc_module->MODE0.CTRLA.reg |= RTC_MODE0_CTRLA_SWRST;
while (rtc_count_is_syncing(module)) {
/* Wait for synchronization */
}
}
/** Frees the RTC
*
* @param[void] void
*/
void rtc_free(void)
{
if (rtc_inited) {
/* Disable the RTC module */
rtc_count_disable(&rtc_instance);
/* Disable the RTC clock */
system_gclk_chan_disable(RTC_GCLK_ID);
rtc_inited = 0;
}
}
void sleep_timer_stop(void)
{
rtc_count_disable(&rtc_instance);
}
static void rtc_overflow_callback(void)
{
/* Do something on RTC overflow here */
rtc_count_disable(&rtc_instance);
}