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59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2006-2018 ARM Limited
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* SPDX-License-Identifier: Apache-2.0
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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 "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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uint32_t pin_number;
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__IO uint32_t *reg_dir;
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__IO uint32_t *reg_dirclr;
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__IO uint32_t *reg_data;
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__I uint32_t *reg_in;
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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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if (value) {
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*obj->reg_data |= (obj->mask);
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} else {
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*obj->reg_data &= ~(obj->mask);
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}
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}
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static inline int gpio_read(gpio_t *obj)
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{
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return ((*obj->reg_in & obj->mask) ? 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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