mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2025-02-10 23:21:09 +08:00
108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/*
|
|
* File : pin.h
|
|
* This file is part of RT-Thread RTOS
|
|
* COPYRIGHT (C) 2015, RT-Thread Development Team
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2015-01-20 Bernard the first version
|
|
* 2017-10-20 ZYH add mode open drain and input pull down
|
|
*/
|
|
|
|
#ifndef PIN_H__
|
|
#define PIN_H__
|
|
|
|
#include <rtthread.h>
|
|
#include <rtdevice.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* pin device and operations for RT-Thread */
|
|
struct rt_device_pin
|
|
{
|
|
struct rt_device parent;
|
|
const struct rt_pin_ops *ops;
|
|
};
|
|
|
|
#define PIN_LOW 0x00
|
|
#define PIN_HIGH 0x01
|
|
|
|
#define PIN_MODE_OUTPUT 0x00
|
|
#define PIN_MODE_INPUT 0x01
|
|
#define PIN_MODE_INPUT_PULLUP 0x02
|
|
#define PIN_MODE_INPUT_PULLDOWN 0x03
|
|
#define PIN_MODE_OUTPUT_OD 0x04
|
|
|
|
#define PIN_IRQ_MODE_RISING 0x00
|
|
#define PIN_IRQ_MODE_FALLING 0x01
|
|
#define PIN_IRQ_MODE_RISING_FALLING 0x02
|
|
|
|
#define PIN_IRQ_DISABLE 0x00
|
|
#define PIN_IRQ_ENABLE 0x01
|
|
|
|
#define PIN_IRQ_PIN_NONE -1
|
|
|
|
struct rt_device_pin_mode
|
|
{
|
|
rt_uint16_t pin;
|
|
rt_uint16_t mode;
|
|
};
|
|
struct rt_device_pin_status
|
|
{
|
|
rt_uint16_t pin;
|
|
rt_uint16_t status;
|
|
};
|
|
struct rt_pin_irq_hdr
|
|
{
|
|
rt_int16_t pin;
|
|
rt_uint16_t mode;
|
|
void (*hdr)(void *args);
|
|
void *args;
|
|
};
|
|
struct rt_pin_ops
|
|
{
|
|
void (*pin_mode)(struct rt_device *device, rt_base_t pin, rt_base_t mode);
|
|
void (*pin_write)(struct rt_device *device, rt_base_t pin, rt_base_t value);
|
|
int (*pin_read)(struct rt_device *device, rt_base_t pin);
|
|
|
|
/* TODO: add GPIO interrupt */
|
|
rt_err_t (*pin_attach_irq)(struct rt_device *device, rt_int32_t pin,
|
|
rt_uint32_t mode, void (*hdr)(void *args), void *args);
|
|
rt_err_t (*pin_dettach_irq)(struct rt_device *device, rt_int32_t pin);
|
|
rt_err_t (*pin_irq_enable)(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled);
|
|
};
|
|
|
|
int rt_device_pin_register(const char *name, const struct rt_pin_ops *ops, void *user_data);
|
|
|
|
void rt_pin_mode(rt_base_t pin, rt_base_t mode);
|
|
void rt_pin_write(rt_base_t pin, rt_base_t value);
|
|
int rt_pin_read(rt_base_t pin);
|
|
rt_err_t rt_pin_attach_irq(rt_int32_t pin, rt_uint32_t mode,
|
|
void (*hdr)(void *args), void *args);
|
|
rt_err_t rt_pin_dettach_irq(rt_int32_t pin);
|
|
rt_err_t rt_pin_irq_enable(rt_base_t pin, rt_uint32_t enabled);
|
|
|
|
int rt_device_pin_irq_register(const char *name, const struct rt_pin_ops *ops,
|
|
void *user_data);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|