452 lines
11 KiB
C
452 lines
11 KiB
C
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/*
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* key.c
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*
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* Created on: Sep 25, 2022
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* Author: wyf
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*/
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/*
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* key.c
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*
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* Created on: 2022年6月23日
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* Author: wyf
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*/
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#include "user.h"
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#include "user_key.h"
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#define KEY_COUNT 5 /* 实体按键个数 */
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/* 依次定义GPIO */
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typedef struct
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{
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GPIO_TypeDef* gpio;
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uint16_t pin;
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uint8_t ActiveLevel; /* 激活电平 */
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}X_GPIO_T;
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/* GPIO和PIN定义 */
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static const X_GPIO_T s_gpio_list[KEY_COUNT] = {
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{Key_UP_GPIO_Port, Key_UP_Pin, 0},
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{KEY_Down_GPIO_Port, KEY_Down_Pin, 0},
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{Key_OK_GPIO_Port, Key_OK_Pin, 0},
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{Key_Reset_GPIO_Port,Key_Reset_Pin, 0},
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{KEY_PWR_GPIO_Port,KEY_PWR_Pin, 1},
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};
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/* 定义一个宏函数简化后续代码
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判断GPIO引脚是否有效按下
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*/
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static KEY_T s_tBtn[KEY_COUNT] = {0};
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static KEY_FIFO_T s_tKey; /* 按键FIFO变量,结构体 */
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static void bsp_InitKeyVar(void);
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static void bsp_DetectKey(uint8_t i);
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/*
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*********************************************************************************************************
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* 函 数 名: KeyPinActive
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* 功能说明: 判断按键是否按下
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* 形 参: 无
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* 返 回 值: 返回值1 表示按下(导通），0表示未按下（释放）
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*********************************************************************************************************
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*/
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static uint8_t KeyPinActive(uint8_t _id)
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{
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uint8_t level;
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if ((s_gpio_list[_id].gpio->IDR & s_gpio_list[_id].pin) == 0)
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{
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level = 0;
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}
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else
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{
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level = 1;
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}
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if (level == s_gpio_list[_id].ActiveLevel)
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{
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return 1;
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}
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else
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{
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return 0;
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}
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}
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/*
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*********************************************************************************************************
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* 函 数 名: IsKeyDownFunc
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* 功能说明: 判断按键是否按下。单键和组合键区分。单键事件不允许有其他键按下。
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* 形 参: 无
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* 返 回 值: 返回值1 表示按下(导通），0表示未按下（释放）
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*********************************************************************************************************
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*/
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static uint8_t IsKeyDownFunc(uint8_t _id)
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{
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/* 实体单键 */
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if (_id < KEY_COUNT)
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{
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if (KeyPinActive(_id))
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{
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return 1;
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}
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}
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return 0;
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_InitKey
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* 功能说明: 初始化按键. 该函数被 bsp_Init() 调用。
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* 形 参: 无
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* 返 回 值: 无
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*********************************************************************************************************
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*/
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void Init_Key(void)
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{
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bsp_InitKeyVar(); /* 初始化按键变量 */
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_InitKeyVar
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* 功能说明: 初始化按键变量
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* 形 参: 无
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* 返 回 值: 无
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*********************************************************************************************************
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*/
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static void bsp_InitKeyVar(void)
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{
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uint8_t i;
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/* 对按键FIFO读写指针清零 */
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s_tKey.Read = 0;
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s_tKey.Write = 0;
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s_tKey.Read2 = 0;
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/* 给每个按键结构体成员变量赋一组缺省值 */
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for (i = 0; i < KEY_COUNT; i++)
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{
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s_tBtn[i].LongTime = KEY_LONG_TIME; /* 长按时间 0 表示不检测长按键事件 */
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s_tBtn[i].Count = KEY_FILTER_TIME / 2; /* 计数器设置为滤波时间的一半 */
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s_tBtn[i].State = 0; /* 按键缺省状态，0为未按下 */
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s_tBtn[i].RepeatSpeed = 4; /* 按键连发的速度，0表示不支持连发 */
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s_tBtn[i].RepeatCount = 0; /* 连发计数器 */
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}
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/* 如果需要单独更改某个按键的参数，可以在此单独重新赋值 */
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_PutKey
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* 功能说明: 将1个键值压入按键FIFO缓冲区。可用于模拟一个按键。
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* 形 参: _KeyCode : 按键代码
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* 返 回 值: 无
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*********************************************************************************************************
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*/
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void bsp_PutKey(uint8_t _KeyCode)
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{
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s_tKey.Buf[s_tKey.Write] = _KeyCode;
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if (++s_tKey.Write >= KEY_FIFO_SIZE)
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{
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s_tKey.Write = 0;
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}
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_GetKey
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* 功能说明: 从按键FIFO缓冲区读取一个键值。
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* 形 参: 无
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* 返 回 值: 按键代码
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*********************************************************************************************************
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*/
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uint8_t bsp_GetKey(void)
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{
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uint8_t ret;
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if (s_tKey.Read == s_tKey.Write)
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{
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return KEY_NONE;
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}
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else
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{
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ret = s_tKey.Buf[s_tKey.Read];
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if (++s_tKey.Read >= KEY_FIFO_SIZE)
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{
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s_tKey.Read = 0;
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}
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return ret;
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}
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_GetKey2
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* 功能说明: 从按键FIFO缓冲区读取一个键值。独立的读指针。
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* 形 参: 无
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* 返 回 值: 按键代码
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*********************************************************************************************************
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*/
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uint8_t bsp_GetKey2(void)
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{
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uint8_t ret;
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if (s_tKey.Read2 == s_tKey.Write)
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{
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return KEY_NONE;
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}
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else
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{
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ret = s_tKey.Buf[s_tKey.Read2];
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if (++s_tKey.Read2 >= KEY_FIFO_SIZE)
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{
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s_tKey.Read2 = 0;
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}
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return ret;
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}
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_GetKeyState
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* 功能说明: 读取按键的状态
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* 形 参: _ucKeyID : 按键ID，从0开始
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* 返 回 值: 1 表示按下， 0 表示未按下
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*********************************************************************************************************
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*/
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uint8_t bsp_GetKeyState(KEY_ID_E _ucKeyID)
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{
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return s_tBtn[_ucKeyID].State;
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_SetKeyParam
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* 功能说明: 设置按键参数
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* 形 参：_ucKeyID : 按键ID，从0开始
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* _LongTime : 长按事件时间
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* _RepeatSpeed : 连发速度
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* 返 回 值: 无
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*********************************************************************************************************
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*/
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void bsp_SetKeyParam(uint8_t _ucKeyID, uint16_t _LongTime, uint8_t _RepeatSpeed)
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{
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s_tBtn[_ucKeyID].LongTime = _LongTime; /* 长按时间 0 表示不检测长按键事件 */
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s_tBtn[_ucKeyID].RepeatSpeed = _RepeatSpeed; /* 按键连发的速度，0表示不支持连发 */
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s_tBtn[_ucKeyID].RepeatCount = 0; /* 连发计数器 */
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_ClearKey
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* 功能说明: 清空按键FIFO缓冲区
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* 形 参：无
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* 返 回 值: 按键代码
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*********************************************************************************************************
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*/
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void bsp_ClearKey(void)
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{
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s_tKey.Read = s_tKey.Write;
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_DetectKey
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* 功能说明: 检测一个按键。非阻塞状态，必须被周期性的调用。
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* 形 参: IO的id， 从0开始编码
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* 返 回 值: 无
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*********************************************************************************************************
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*/
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static void bsp_DetectKey(uint8_t i)
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{
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KEY_T *pBtn;
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pBtn = &s_tBtn[i];
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if (IsKeyDownFunc(i))
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{
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if (pBtn->Count < KEY_FILTER_TIME)
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{
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pBtn->Count = KEY_FILTER_TIME;
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}
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else if(pBtn->Count < 2 * KEY_FILTER_TIME)
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{
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pBtn->Count++;
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}
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else
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{
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if (pBtn->State == 0)
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{
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pBtn->State = 1;
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/* 发送按钮按下的消息 */
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bsp_PutKey((uint8_t)(3 * i + 1));
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}
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if (pBtn->LongTime > 0)
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{
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if (pBtn->LongCount < pBtn->LongTime)
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{
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/* 发送按钮持续按下的消息 */
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if (++pBtn->LongCount == pBtn->LongTime)
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{
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/* 键值放入按键FIFO */
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bsp_PutKey((uint8_t)(3 * i + 3));
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}
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}
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else
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{
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if (pBtn->RepeatSpeed > 0)
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{
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if (++pBtn->RepeatCount >= pBtn->RepeatSpeed)
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{
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pBtn->RepeatCount = 0;
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/* 常按键后，每隔10ms发送1个按键 */
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bsp_PutKey((uint8_t)(3 * i + 1));
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}
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}
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}
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}
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}
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}
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else
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{
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if(pBtn->Count > KEY_FILTER_TIME)
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{
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pBtn->Count = KEY_FILTER_TIME;
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}
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else if(pBtn->Count != 0)
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{
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pBtn->Count--;
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}
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else
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{
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if (pBtn->State == 1)
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{
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pBtn->State = 0;
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/* 发送按钮弹起的消息 */
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bsp_PutKey((uint8_t)(3 * i + 2));
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}
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}
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pBtn->LongCount = 0;
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pBtn->RepeatCount = 0;
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}
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}
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/*
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*********************************************************************************************************
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* 函 数 名: bsp_DetectFastIO
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* 功能说明: 检测高速的输入IO. 1ms刷新一次
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* 形 参: IO的id， 从0开始编码
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* 返 回 值: 无
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*********************************************************************************************************
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*/
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static void bsp_DetectFastIO(uint8_t i)
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{
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KEY_T *pBtn;
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pBtn = &s_tBtn[i];
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|||
|
|
if (IsKeyDownFunc(i))
|
|||
|
|
{
|
|||
|
|
if (pBtn->State == 0)
|
|||
|
|
{
|
|||
|
|
pBtn->State = 1;
|
|||
|
|
|
|||
|
|
/* 发送按钮按下的消息 */
|
|||
|
|
bsp_PutKey((uint8_t)(3 * i + 1));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (pBtn->LongTime > 0)
|
|||
|
|
{
|
|||
|
|
if (pBtn->LongCount < pBtn->LongTime)
|
|||
|
|
{
|
|||
|
|
/* 发送按钮持续按下的消息 */
|
|||
|
|
if (++pBtn->LongCount == pBtn->LongTime)
|
|||
|
|
{
|
|||
|
|
/* 键值放入按键FIFO */
|
|||
|
|
bsp_PutKey((uint8_t)(3 * i + 3));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
if (pBtn->RepeatSpeed > 0)
|
|||
|
|
{
|
|||
|
|
if (++pBtn->RepeatCount >= pBtn->RepeatSpeed)
|
|||
|
|
{
|
|||
|
|
pBtn->RepeatCount = 0;
|
|||
|
|
/* 常按键后，每隔10ms发送1个按键 */
|
|||
|
|
bsp_PutKey((uint8_t)(3 * i + 1));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
if (pBtn->State == 1)
|
|||
|
|
{
|
|||
|
|
pBtn->State = 0;
|
|||
|
|
|
|||
|
|
/* 发送按钮弹起的消息 */
|
|||
|
|
bsp_PutKey((uint8_t)(3 * i + 2));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
pBtn->LongCount = 0;
|
|||
|
|
pBtn->RepeatCount = 0;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
*********************************************************************************************************
|
|||
|
|
* 函 数 名: bsp_KeyScan10ms
|
|||
|
|
* 功能说明: 扫描所有按键。非阻塞，被systick中断周期性的调用，10ms一次
|
|||
|
|
* 形 参: 无
|
|||
|
|
* 返 回 值: 无
|
|||
|
|
*********************************************************************************************************
|
|||
|
|
*/
|
|||
|
|
void bsp_KeyScan10ms(void)
|
|||
|
|
{
|
|||
|
|
uint8_t i;
|
|||
|
|
|
|||
|
|
for (i = 0; i < KEY_COUNT; i++)
|
|||
|
|
{
|
|||
|
|
bsp_DetectKey(i);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
*********************************************************************************************************
|
|||
|
|
* 函 数 名: bsp_KeyScan1ms
|
|||
|
|
* 功能说明: 扫描所有按键。非阻塞，被systick中断周期性的调用，1ms一次.
|
|||
|
|
* 形 参: 无
|
|||
|
|
* 返 回 值: 无
|
|||
|
|
*********************************************************************************************************
|
|||
|
|
*/
|
|||
|
|
void bsp_KeyScan1ms(void)
|
|||
|
|
{
|
|||
|
|
uint8_t i;
|
|||
|
|
|
|||
|
|
for (i = 0; i < KEY_COUNT; i++)
|
|||
|
|
{
|
|||
|
|
bsp_DetectFastIO(i);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|