huxi
223 lines
7.0 KiB
C
223 lines
7.0 KiB
C
#ifdef SUPPORT_MS_EXTENSIONS
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#pragma bss_seg(".key_driver.data.bss")
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#pragma data_seg(".key_driver.data")
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#pragma const_seg(".key_driver.text.const")
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#pragma code_seg(".key_driver.text")
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#endif
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#include "system/timer.h"
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#include "asm/power_interface.h"
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#include "key_driver.h"
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#include "sdk_config.h"
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#define LOG_TAG "[KEY]"
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#define LOG_ERROR_ENABLE
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#define LOG_DEBUG_ENABLE
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#define LOG_INFO_ENABLE
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#include "debug.h"
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static volatile u8 g_is_key_active = 0; //按键是否活跃标志，判断是否可进低功耗
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static volatile bool g_key_idle_query_en = false; //是否需要判断g_is_key_active的使能标志
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__attribute__((weak))
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void key_down_event_handler(u8 key_value)
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{
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}
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/* --------------------------------------------------------------------------*/
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/**
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* @brief 按键扫描函数，扫描所有注册的按键驱动
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*
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* @param key_ops:按键操作句柄
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*/
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/* ----------------------------------------------------------------------------*/
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static void key_driver_scan(void *key_ops)
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{
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struct key_driver_ops *key_handler = (struct key_driver_ops *)key_ops;
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struct key_driver_para *scan_para = (struct key_driver_para *)key_handler->param;
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u8 key_event = 0;
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u8 cur_key_value = NO_KEY;
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u8 key_value = 0;
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struct key_event key = {0};
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#if CONFIG_LVGL_UI_ENABLE
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struct key_event key_click = {0};
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#endif
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key.init = 1;
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//区分按键类型
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key.type = scan_para->key_type;
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cur_key_value = key_handler->get_value();
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if (cur_key_value != NO_KEY) {
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//35*10Ms
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g_is_key_active = 35;
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} else if (g_is_key_active) {
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g_is_key_active --;
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}
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//===== 按键消抖处理
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//当前按键值与上一次按键值如果不相等, 重新消抖处理, 注意filter_time != 0;
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if (cur_key_value != scan_para->filter_value && scan_para->filter_time) {
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//消抖次数清0, 重新开始消抖
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scan_para->filter_cnt = 0;
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//记录上一次的按键值
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scan_para->filter_value = cur_key_value;
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//第一次检测, 返回不做处理
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return;
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}
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//当前按键值与上一次按键值相等, filter_cnt开始累加
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if (scan_para->filter_cnt < scan_para->filter_time) {
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scan_para->filter_cnt++;
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return;
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}
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//===== 按键消抖结束, 开始判断按键类型(单击, 双击, 长按, 多击, HOLD, (长按/HOLD)抬起)
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if (cur_key_value != scan_para->last_key) {
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if (cur_key_value == NO_KEY) {
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//cur_key = NO_KEY; last_key = valid_key -> 按键被抬起
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if (scan_para->press_cnt >= scan_para->long_time) {
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//长按/HOLD状态之后被按键抬起;
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key_event = KEY_ACTION_UP;
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key_value = scan_para->last_key;
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goto __notify;
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} else {
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#if CONFIG_LVGL_UI_ENABLE
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key_event = KEY_ACTION_UP;
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key_value = scan_para->last_key;
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scan_para->click_delay_cnt = 1;
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key_click.init = 1;
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key_click.event = KEY_ACTION_CLICK;
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key_click.value = scan_para->last_key;
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goto __notify;
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#else
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key_event = KEY_ACTION_CLICK;
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key_value = scan_para->last_key;
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scan_para->click_delay_cnt = 1;
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goto __notify;
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#endif
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}
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} else {
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//cur_key = valid_key, last_key = NO_KEY -> 按键被按下
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scan_para->press_cnt = 1; //用于判断long和hold事件的计数器重新开始计时;
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scan_para->press_sum_cnt = 1;
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scan_para->click_delay_cnt = 0;
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key_down_event_handler(cur_key_value);
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#if CONFIG_LVGL_UI_ENABLE
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key_event = KEY_ACTION_LVGL_DOWN;
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key_value = cur_key_value;
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goto __notify;
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#endif
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}
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//返回, 等待延时时间到
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goto __scan_end;
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} else {
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//cur_key = last_key -> 没有按键按下/按键长按(HOLD)
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if (cur_key_value == NO_KEY) {
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//last_key = NO_KEY; cur_key = NO_KEY -> 没有按键按下
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if (scan_para->click_delay_cnt > 0) {
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scan_para->click_delay_cnt++;
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if (scan_para->click_delay_cnt > scan_para->click_delay_time) {
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key_event = KEY_ACTION_NO_KEY;
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scan_para->click_delay_cnt = 0;
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goto __notify; //有按键需要消息需要处理
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}
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}
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goto __scan_end; //没有按键需要处理
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} else {
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//last_key = valid_key; cur_key = valid_key, press_cnt累加用于判断long和hold
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scan_para->press_cnt++;
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if (scan_para->press_sum_cnt) {
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scan_para->press_sum_cnt++;
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}
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if (scan_para->press_cnt == scan_para->long_time) {
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key_event = KEY_ACTION_LONG;
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} else if (scan_para->press_cnt >= scan_para->hold_time) {
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key_event = KEY_ACTION_HOLD;
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scan_para->press_cnt = scan_para->long_time;
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} else {
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goto __scan_end; //press_cnt没到长按和HOLD次数, 返回
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}
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key_value = cur_key_value;
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goto __notify;
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}
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}
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__notify:
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key.event = key_event;
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key.value = key_value;
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key.tmr = sys_timer_get_ms();
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/* printf("key_value: 0x%x, event: %d\n", key_value, key_event); */
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key_event_handler(&key);
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#if CONFIG_LVGL_UI_ENABLE
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if (key_click.init) {
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key_click.tmr = sys_timer_get_ms();
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key_event_handler(&key_click);
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}
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#endif
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__scan_end:
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scan_para->last_key = cur_key_value;
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return;
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}
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/* --------------------------------------------------------------------------*/
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/**
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* @brief wakeup回调函数
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*
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* @param port:唤醒口
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*/
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/* ----------------------------------------------------------------------------*/
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void key_active_set(u8 port)
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{
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g_is_key_active = 35; //35*10Ms
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}
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/* --------------------------------------------------------------------------*/
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/**
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* @brief 按键初始化函数，初始化所有注册的按键驱动
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*/
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/* ----------------------------------------------------------------------------*/
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void key_driver_init(void)
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{
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const struct key_driver_ops *key;
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list_for_each_key(key) {
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if (!key->key_init) {
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continue;
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}
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if ((!key->key_init()) && key->get_value) {
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sys_s_hi_timer_add((void *)key, key_driver_scan, key->param->scan_time); //注册按键扫描定时器
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if (key->idle_query_en) {
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g_key_idle_query_en = true;
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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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* @brief 按键模块是否可进低功耗查询函数
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*
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* @return 0：不可进
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* 1：可进
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*/
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/* ----------------------------------------------------------------------------*/
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static u8 key_idle_query(void)
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{
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if (g_key_idle_query_en) {
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return !g_is_key_active;
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} else {
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return 1;
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}
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}
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REGISTER_LP_TARGET(key_driver_target) = {
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.name = "key",
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.is_idle = key_idle_query,
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};
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