mirror of https://github.com/ARMmbed/mbed-os.git
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2015-2016 Nuvoton
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_GPIO_OBJECT_H
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#define MBED_GPIO_OBJECT_H
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#include "mbed_assert.h"
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#include "cmsis.h"
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#include "PortNames.h"
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#include "PeripheralNames.h"
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#include "PinNames.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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PinName pin;
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uint32_t mask;
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PinDirection direction;
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PinMode mode;
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} gpio_t;
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static inline void gpio_write(gpio_t *obj, int value)
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{
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MBED_ASSERT(obj->pin != (PinName)NC);
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uint32_t pin_index = NU_PINNAME_TO_PIN(obj->pin);
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uint32_t port_index = NU_PINNAME_TO_PORT(obj->pin);
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GPIO_PIN_ADDR(port_index, pin_index) = value ? 1 : 0;
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}
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static inline int gpio_read(gpio_t *obj)
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{
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MBED_ASSERT(obj->pin != (PinName)NC);
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uint32_t pin_index = NU_PINNAME_TO_PIN(obj->pin);
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uint32_t port_index = NU_PINNAME_TO_PORT(obj->pin);
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return (GPIO_PIN_ADDR(port_index, pin_index) ? 1 : 0);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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