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/*
* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-12-15 liuhy first implementation.
*/
/*
* 程序清单：这是一个 pm睡眠唤醒的使用例程
* 例程导出了 pm_sample 命令到控制终端
* 命令调用格式：pm_sample
* 命令解释：进入不同的睡眠模式，然后用按键唤醒
* 程序功能：通过串口输出字符串，告知进入睡眠和唤醒睡眠的情况。
*/
#include <rtthread.h>
#include <rtdevice.h>
#define PM_NAME "pm" /* 设备名称 */
#define WAKE_UP_PIN 18 /* 唤醒源 */
#define SLEEP_TIMES 12 /* 进入睡眠次数，轮流进入不同的睡眠模式，包括无睡眠模式 */
struct pm_callback_t
{
volatile int in_fun_times; /*进入函数的次数*/
volatile char flag; /*标志*/
volatile int mode; /*需要打印的模式*/
};
volatile struct pm_callback_t g_pm_data;
/*进入睡眠前，睡眠唤醒后，都会进入。*/
/*函数打印睡眠相关的信息*/
void sleep_in_out_callback(rt_uint8_t event, rt_uint8_t mode, void *data)
{
/*没有标志，不处理*/
if(!(g_pm_data.flag))
{
return;
}
/*标志不正常，清空标志*/
if((g_pm_data.flag) > 2)
{
(g_pm_data.flag) = 0;
return;
}
/*模式不匹配*/
if(g_pm_data.mode != mode )
{
return;
}
/*进入的事件*/
switch(event)
{
/*进入睡眠前*/
case RT_PM_ENTER_SLEEP: g_pm_data.flag = 1;
rt_kprintf("\n\r##%d : ENTER ",g_pm_data.in_fun_times);
g_pm_data.in_fun_times++; /*进入睡眠次数+1*/
break;
/*睡眠唤醒后*/
case RT_PM_EXIT_SLEEP: g_pm_data.flag = 0; /*睡眠唤醒后*/
rt_kprintf("\n\rEXIT\n\r");
rt_pm_release(mode); /*释放休眠模式*/
return;
default: break;
};
/*当前的睡眠模式*/
switch(mode)
{
case PM_SLEEP_MODE_NONE: rt_kprintf("PM_SLEEP_MODE_NONE\n\r");
break;
case PM_SLEEP_MODE_IDLE: rt_kprintf("PM_SLEEP_MODE_IDLE\n\r");
break;
case PM_SLEEP_MODE_LIGHT: rt_kprintf("PM_SLEEP_MODE_LIGHT\n\r");
break;
case PM_SLEEP_MODE_DEEP: rt_kprintf("PM_SLEEP_MODE_DEEP\n\r");
break;
case PM_SLEEP_MODE_STANDBY: rt_kprintf("PM_SLEEP_MODE_STANDBY\n\r");
break;
case PM_SLEEP_MODE_SHUTDOWN: rt_kprintf("PM_SLEEP_MODE_SHUTDOWN\n\r");
break;
case PM_SLEEP_MODE_MAX: rt_kprintf("PM_SLEEP_MODE_MAX\n\r");
break;
default: break;
}
}
/* pm测试函数 */
static void pm_test(void *parameter)
{
int in_mode[7],i = 0;
g_pm_data.in_fun_times = 0;
g_pm_data.flag = 0;
in_mode[0] = PM_SLEEP_MODE_NONE;
in_mode[1] = PM_SLEEP_MODE_IDLE;
in_mode[2] = PM_SLEEP_MODE_LIGHT;
in_mode[3] = PM_SLEEP_MODE_DEEP;
in_mode[4] = PM_SLEEP_MODE_STANDBY;
in_mode[5] = PM_SLEEP_MODE_SHUTDOWN;
in_mode[6] = PM_SLEEP_MODE_MAX;
/*设置回调函数和私有数据*/
rt_pm_notify_set(sleep_in_out_callback,RT_NULL);
while(i < SLEEP_TIMES)
{
g_pm_data.mode = in_mode[i%6];
/*无休眠模式，不赋予标志*/
if(g_pm_data.mode != PM_SLEEP_MODE_NONE)
{
g_pm_data.flag = 2;
}
/*请求选择的休眠模式*/
rt_pm_request(in_mode[i%6]);
rt_thread_mdelay(500);
/*无休眠模式，不需要额外的等待*/
while(( g_pm_data.flag != 0 )&&(g_pm_data.mode != PM_SLEEP_MODE_NONE))
{
rt_thread_mdelay(500);
}
/*释放选择的休眠模式*/
rt_pm_release(in_mode[i%6]);
i++;
}
/*清除回调函数和私有数据*/
rt_pm_notify_set(RT_NULL,RT_NULL);
rt_kprintf("thread pm_test close\n\r");
}
/*按键唤醒的回调函数*/
void wake_by_pin(void *args)
{
}
static int pm_sample(int argc, char *argv[])
{
rt_thread_t thread;
/* 按键引脚为输入模式 */
rt_pin_mode(WAKE_UP_PIN, PIN_MODE_INPUT_PULLUP);
/* 绑定中断，下降沿模式，回调函数名为wake_by_pin */
rt_pin_attach_irq(WAKE_UP_PIN, PIN_IRQ_MODE_RISING, wake_by_pin, RT_NULL);
/* 使能中断 */
rt_pin_irq_enable(WAKE_UP_PIN, PIN_IRQ_ENABLE);
thread = rt_thread_create("pm_test", pm_test, RT_NULL, 1024, 25, 10);
if (thread != RT_NULL)
{
rt_thread_startup(thread);
}
else
{
rt_kprintf("create pm_test thread failed!\n\r");
}
return RT_EOK;
}
/* 导出到 msh 命令列表中 */
MSH_CMD_EXPORT(pm_sample, pm sample);
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