84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
#include "typedef.h"
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#include "irq.h"
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#include "asm/gpio.h"
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/**
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* 注意：JL_WAKEUP 区别于PMU管理的唤醒。可理解为一个独立的模块使用。但在低功耗的情况下，中断无效。
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*/
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static void (*port_wkup_irq_cbfun)(void) = NULL;
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static u32 user_port = -1;;
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/**
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* @brief 引脚中断函数
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*/
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___interrupt
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void port_wkup_irq_fun(void)
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{
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if (JL_WAKEUP->CON3 & BIT(0)) {
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JL_WAKEUP->CON2 |= BIT(0);
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if (port_wkup_irq_cbfun) {
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port_wkup_irq_cbfun();
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}
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}
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}
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/**
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* @brief 引脚中断初始化
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* @param port 任意引脚的引脚号：IO_PORTA_00......
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* @param trigger_edge 触发边沿。 0：上升沿触发。 1；下降沿触发
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* @param cbfun 相应的中断回调函数
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*/
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void port_wkup_interrupt_init(u32 port, u8 trigger_edge, void (*cbfun)(void))
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{
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JL_WAKEUP->CON0 &= ~BIT(0);
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gpio_set_die(port, 1);
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gpio_set_direction(port, 1);
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if (trigger_edge == 0) {
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JL_WAKEUP->CON1 &= ~BIT(0);
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gpio_set_pull_up(port, 0);
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gpio_set_pull_down(port, 1);
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} else {
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JL_WAKEUP->CON1 |= BIT(0);
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gpio_set_pull_up(port, 1);
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gpio_set_pull_down(port, 0);
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}
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user_port = port;
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if (cbfun) {
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port_wkup_irq_cbfun = cbfun;
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}
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request_irq(IRQ_PORT_IDX, 3, port_wkup_irq_fun, 0); //注册中断函数
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JL_IOMAP->CON2 &= ~(0b111111 << 0); //使用inputchannel 0
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JL_IOMAP->CON2 |= (port << 0);
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JL_WAKEUP->CON2 |= BIT(0); //清一次pnd
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JL_WAKEUP->CON0 |= BIT(0); //引脚中断使能
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}
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/**
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* @brief 关掉该引脚的中断功能
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* @param port 引脚号：IO_PORTA_00......
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*/
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void port_wkup_interrupt_close(u32 port)
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{
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JL_WAKEUP->CON0 &= ~BIT(0);
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if (port == user_port) {
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gpio_set_die(port, 0);
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gpio_set_direction(port, 1);
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gpio_set_pull_up(port, 0);
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gpio_set_pull_down(port, 0);
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}
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}
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/*********************************************************************************************************
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* ****************************** 使用举例如下 ***************************************
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* ******************************************************************************************************/
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void port_irq_cbfun(void)
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{
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printf("Hello world !\n");
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}
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void my_port_wkup_test()
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{
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port_wkup_interrupt_init(IO_PORTA_03, 0, port_irq_cbfun);//上升沿触发
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/* port_wkup_interrupt_init(IO_PORT_DP, 1, port_irq_cbfun);//下降沿触发 */
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while (1);
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}
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