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RTOS: Add tickles sleep implementation #2609

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Sep 2, 2016
Merged

RTOS: Add tickles sleep implementation #2609

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37 changes: 37 additions & 0 deletions rtos/rtos/rtos_idle.c
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Original file line number Diff line number Diff line change
Expand Up @@ -22,13 +22,50 @@

#include "rtos_idle.h"

#if DEVICE_LOWPOWERTIMER && DEVICE_SLEEP
#include "ticker_api.h"
#include "critical.h"
#include "lp_ticker_api.h"
#include "cmsis_os.h"
#include "sleep_api.h"

static ticker_event_t delay_event;
static volatile bool sleep_ended;
extern uint32_t os_clockrate;

void sleep_handler(uint32_t id)
{
sleep_ended = true;
}
#endif /* DEVICE_LOWPOWERTIMER && DEVICE_SLEEP */

static void default_idle_hook(void)
{
#if DEVICE_LOWPOWERTIMER && DEVICE_SLEEP
const ticker_data_t *lp_ticker_data = get_lp_ticker_data();
uint32_t delay_ticks = os_suspend();
uint32_t delay_us;
sleep_ended = false;

ticker_set_handler(lp_ticker_data, sleep_handler);

ticker_remove_event(lp_ticker_data, &delay_event);
delay_us = lp_ticker_read() + delay_ticks * os_clockrate;
ticker_insert_event(lp_ticker_data, &delay_event, delay_us, (uint32_t)&delay_event);

while(!sleep_ended) {
sleep();
}

os_resume(delay_ticks);

#else /* DEVICE_LOWPOWERTIMER && DEVICE_SLEEP */
/* Sleep: ideally, we should put the chip to sleep.
Unfortunately, this usually requires disconnecting the interface chip (debugger).
This can be done, but it would break the local file system.
*/
// sleep();
#endif /* DEVICE_LOWPOWERTIMER && DEVICE_SLEEP */
}
static void (*idle_hook_fptr)(void) = &default_idle_hook;

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