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/*
* Copyright (c) 2021-2024 RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-06-03 supperthomas first version
* 2024-12-08 wumingzi support open drain mode for soft i2c
*/
#include <rtthread.h>
#include <rtdevice.h>
#include "driver/gpio.h"
#ifdef RT_USING_PIN
static void mcu_pin_write(rt_device_t dev, rt_base_t pin, rt_uint8_t value)
{
gpio_set_level(pin, value);
/*TODO:set gpio out put mode */
}
static rt_ssize_t mcu_pin_read(rt_device_t dev, rt_base_t pin)
{
rt_ssize_t value;
value = gpio_get_level(pin);
return value;
}
static void mcu_pin_mode(rt_device_t dev, rt_base_t pin, rt_uint8_t mode)
{
gpio_config_t io_conf;
io_conf.intr_type = GPIO_INTR_DISABLE;
io_conf.mode = GPIO_MODE_OUTPUT;
io_conf.pin_bit_mask = (1ULL << pin);
io_conf.pull_down_en = 0;
io_conf.pull_up_en = 0;
gpio_config(&io_conf);
switch (mode)
{
case PIN_MODE_INPUT:
gpio_set_direction(pin, GPIO_MODE_INPUT);
break;
case PIN_MODE_OUTPUT:
gpio_set_direction(pin, GPIO_MODE_OUTPUT);
break;
case PIN_MODE_OUTPUT_OD:
gpio_set_direction(pin, GPIO_MODE_INPUT_OUTPUT_OD);
break;
default:
break;
}
/*TODO:set gpio out put mode */
}
static rt_err_t mcu_pin_attach_irq(struct rt_device *device, rt_base_t pin,
rt_uint8_t irq_mode, void (*hdr)(void *args), void *args)
{
/*TODO: start irq handle */
return -RT_ENOSYS;
}
static rt_err_t mcu_pin_detach_irq(struct rt_device *device, rt_base_t pin)
{
/*TODO:disable gpio irq handle */
return RT_EOK;
}
static rt_err_t mcu_pin_irq_enable(struct rt_device *device, rt_base_t pin,
rt_uint8_t enabled)
{
/*TODO:start irq handle */
return RT_EOK;
}
const static struct rt_pin_ops _mcu_pin_ops = {
mcu_pin_mode,
mcu_pin_write,
mcu_pin_read,
mcu_pin_attach_irq,
mcu_pin_detach_irq,
mcu_pin_irq_enable,
RT_NULL,
};
int rt_hw_pin_init(void)
{
/*TODO: INIT THE GPIO CLOCK AND OTHER */
return rt_device_pin_register("pin", &_mcu_pin_ops, RT_NULL);
}
INIT_BOARD_EXPORT(rt_hw_pin_init);
#endif /* RT_USING_PIN */
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