SmartPDCode/f407/applications/ui/gpio.c

#include <string.h>
#include <stdio.h>
#include "gpio.h"
#include "log.h"


int gpio_init(int gpio, int io, int hl)
{
    if(io==GPIO_IN) {
        rt_pin_mode(gpio, PIN_MODE_INPUT);
    }
    else {
        rt_pin_mode(gpio, PIN_MODE_OUTPUT);
        rt_pin_write(gpio, (hl>0)?PIN_HIGH:PIN_LOW);
    }
    
    return 0;
}


int gpio_deinit(int fd)
{
    return 0;
}


int gpio_set(int gpio, int hl)
{
    rt_pin_write(gpio, (hl>0)?PIN_HIGH:PIN_LOW);
	return 0;
}

int gpio_get(int gpio)
{
    rt_ssize_t r = rt_pin_read(gpio);
    return (r==PIN_HIGH)?1:0;
}