rt-thread/examples/pm/wakeup_app.c

78 lines
1.9 KiB
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-05-09 Zero-Free first implementation
*/
#include <board.h>
#include <rtthread.h>
#include <rtdevice.h>
#ifdef RT_USING_PM
#define WAKEUP_EVENT_BUTTON (1 << 0)
#define PIN_LED_R GET_PIN(E, 7)
#define WAKEUP_PIN GET_PIN(C, 13)
#define WAKEUP_APP_THREAD_STACK_SIZE 1024
static rt_event_t wakeup_event;
static void wakeup_callback(void *args)
{
rt_event_send(wakeup_event, WAKEUP_EVENT_BUTTON);
}
static void wakeup_init(void)
{
rt_pin_mode(WAKEUP_PIN, PIN_MODE_INPUT_PULLUP);
rt_pin_attach_irq(WAKEUP_PIN, PIN_IRQ_MODE_FALLING, wakeup_callback, RT_NULL);
rt_pin_irq_enable(WAKEUP_PIN, 1);
}
static void wakeup_app_entry(void *parameter)
{
wakeup_init();
rt_pm_request(PM_SLEEP_MODE_DEEP);
while (1)
{
if (rt_event_recv(wakeup_event,
WAKEUP_EVENT_BUTTON,
RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR,
RT_WAITING_FOREVER, RT_NULL) == RT_EOK)
{
rt_pm_request(PM_SLEEP_MODE_NONE);
rt_pin_mode(PIN_LED_R, PIN_MODE_OUTPUT);
rt_pin_write(PIN_LED_R, 0);
rt_thread_delay(rt_tick_from_millisecond(500));
rt_pin_write(PIN_LED_R, 1);
rt_pm_release(PM_SLEEP_MODE_NONE);
}
}
}
static int wakeup_app(void)
{
rt_thread_t tid;
wakeup_event = rt_event_create("wakup", RT_IPC_FLAG_FIFO);
RT_ASSERT(wakeup_event != RT_NULL);
tid = rt_thread_create("wakeup_app", wakeup_app_entry, RT_NULL,
WAKEUP_APP_THREAD_STACK_SIZE, RT_MAIN_THREAD_PRIORITY, 20);
RT_ASSERT(tid != RT_NULL);
rt_thread_startup(tid);
return 0;
}
INIT_APP_EXPORT(wakeup_app);
#endif