mirror of https://github.com/ARMmbed/mbed-os.git
86 lines
1.9 KiB
C
86 lines
1.9 KiB
C
/*
|
|
* mbed Microcontroller Library
|
|
* Copyright (c) 2017-2018 Future Electronics
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef MBED_GPIO_OBJECTS_H
|
|
#define MBED_GPIO_OBJECTS_H
|
|
|
|
#include "mbed_assert.h"
|
|
#include "PinNamesTypes.h"
|
|
#include "PinNames.h"
|
|
|
|
#include "drivers/peripheral/gpio/cy_gpio.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct gpio_s {
|
|
GPIO_PRT_Type *port;
|
|
PinName pin;
|
|
PinDirection dir;
|
|
PinMode mode;
|
|
};
|
|
|
|
typedef struct gpio_s gpio_t;
|
|
|
|
/** Set the output value
|
|
*
|
|
* @param obj The GPIO object
|
|
* @param value The value to be set
|
|
*/
|
|
static inline void gpio_write(gpio_t *obj, int value)
|
|
{
|
|
MBED_ASSERT(obj->pin != NC);
|
|
|
|
Cy_GPIO_Write(obj->port, CY_PIN(obj->pin), value);
|
|
}
|
|
|
|
/** Read the input value
|
|
*
|
|
* @param obj The GPIO object
|
|
* @return An integer value 1 or 0
|
|
*/
|
|
static inline int gpio_read(gpio_t *obj)
|
|
{
|
|
MBED_ASSERT(obj->pin != NC);
|
|
|
|
return Cy_GPIO_Read(obj->port, CY_PIN(obj->pin));
|
|
}
|
|
|
|
static inline int gpio_is_connected(const gpio_t *obj)
|
|
{
|
|
return obj->pin != NC;
|
|
}
|
|
|
|
/** Get the pin name from the port's pin number
|
|
*
|
|
* @param port The port name
|
|
* @param pin_n The pin number within the specified port
|
|
* @return The pin name for the port's pin number
|
|
*/
|
|
inline PinName port_pin(PortName port, int pin_n)
|
|
{
|
|
return (PinName)((port << 8) + pin_n);
|
|
}
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // MBED_GPIO_OBJECTS_H
|