2022-12-31 14:42:31 +00:00
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/******************************************************************************
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* @brief 系统模块管理(包含系统初始化,时间片轮询系统)
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*
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* Copyright (c) 2017~2020, <morro_luo@163.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2016-06-24 roger.luo 初版完成
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* 2020-05-23 roger.luo 增加匿名类型,防止模块重名错误
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* 2020-06-28 roger.luo 增加is_timeout超时判断接口
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* 2020-09-28 roger.luo 解决伪任务项未初始化timer，导致引用了空指针的问题！
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*
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******************************************************************************/
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#include "module.h"
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static volatile unsigned int tick; //系统滴答计时
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/*
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* @brief 增加系统节拍数(定时器中断中调用,1ms 1次)
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*/
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void systick_increase(unsigned int ms)
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{
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tick += ms;
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}
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/*
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* @brief 获取系统滴答时钟值(通常单位是1ms)
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*/
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unsigned int get_tick(void)
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{
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return tick;
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}
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/*
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* @brief 超时判断
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* @param[in] start - 起始时间
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* @param[in] timeout - 超时时间(ms)
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*/
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bool is_timeout(unsigned int start, unsigned int timeout)
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{
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return get_tick() - start > timeout;
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}
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/*
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* @brief 空处理,用于定位段入口
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*/
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static void nop_process(void) {}
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//第一个初始化项
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const init_item_t init_tbl_start SECTION("init.item.0") = {
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"", nop_process
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};
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//最后个初始化项
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const init_item_t init_tbl_end SECTION("init.item.4") = {
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"", nop_process
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};
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//第一个任务项
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const task_item_t task_tbl_start SECTION("task.item.0") = {
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"", nop_process
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};
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//最后个任务项
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const task_item_t task_tbl_end SECTION("task.item.2") = {
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"", nop_process
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};
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/*
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* @brief 模块初始处理
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* 初始化模块优化级 system_init > driver_init > module_init
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* @param[in] none
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* @return none
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*/
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void module_task_init(void)
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{
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const init_item_t *it = &init_tbl_start;
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while (it < &init_tbl_end) {
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it++->init();
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}
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}
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/*
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* @brief 任务轮询处理
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* @param[in] none
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* @return none
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*/
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void module_task_process(void)
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{
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const task_item_t *t;
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for (t = &task_tbl_start + 1; t < &task_tbl_end; t++) {
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if ((get_tick() - *t->timer) >= t->interval) {
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*t->timer = get_tick();
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t->handle();
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}
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}
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}
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