rt-thread-official/bsp/ls1cdev/libraries/ls1c_timer.h

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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* first version
*/
// 硬件定时器头文件
#ifndef __OPENLOONGSON_TIMER_H
#define __OPENLOONGSON_TIMER_H
#include "ls1c_public.h"
// 硬件定时器
typedef enum
{
TIMER_PWM0, // PWM0用作硬件定时器
TIMER_PWM1, // PWM1用作硬件定时器
TIMER_PWM2, // PWM2用作硬件定时器
TIMER_PWM3 // PWM3用作硬件定时器
}ls1c_timer_t;
// 硬件定时器信息
typedef struct
{
ls1c_timer_t timer; // 硬件定时器
unsigned long time_ns; // 低定时时间
unsigned long time_h_ns; // 高定时时间
}timer_info_t;
/*
* 初始化定时器,并开始定时
* @timer_info 定时器和定时时间信息
*/
void timer_init(timer_info_t *timer_info);
/*
* 判断指定定时器是否超时
* @timer_info 定时器
* @ret TRUE or FALSE
*/
BOOL timer_is_time_out(timer_info_t *timer_info);
/*
* 停止定时器
* @timer_info 定时器
*/
void timer_stop(timer_info_t *timer_info);
/*
* 获取定时器从初始化到现在的时间(实现计时功能)单位ns
* @timer_info 硬件定时器
* @ret 时间单位ns
*/
unsigned long timer_get_time_ns(timer_info_t *timer_info);
/*
* 打印timer相关寄存器的值
* @timer_info 硬件定时器
*/
void timer_print_regs(timer_info_t *timer_info);
/*
* 定时器中断清
* @timer_info 定时器信息
*/
void timer_int_clr(timer_info_t *timer_info);
/*
* 定时器计数清
* @timer_info 定时器信息
*/
void timer_cnt_clr(timer_info_t *timer_info);
/*
* 初始化定时器,并开始中断定时
* @timer_info 定时器和定时时间信息
* @hrc 高中断 lrc 低中断 为1打开为0关闭
*/
void timer_int_init(timer_info_t *timer_info, int hrc, int lrc);
#endif