mirror of https://github.com/ARMmbed/mbed-os.git
74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
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/*******************************************************************************
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* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of Maxim Integrated
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* Products, Inc. shall not be used except as stated in the Maxim Integrated
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* Products, Inc. Branding Policy.
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*
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* The mere transfer of this software does not imply any licenses
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* of trade secrets, proprietary technology, copyrights, patents,
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* trademarks, maskwork rights, or any other form of intellectual
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* property whatsoever. Maxim Integrated Products, Inc. retains all
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* ownership rights.
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*******************************************************************************
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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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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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PinName name;
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__IO uint32_t *reg_out;
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__I uint32_t *reg_in;
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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->name != (PinName)NC);
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*obj->reg_out = !!value;
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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->name != (PinName)NC);
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return *obj->reg_in;
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}
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void pin_dir_mode(PinName name, PinDirection direction, PinMode mode);
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static inline int gpio_is_connected(const gpio_t *obj)
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{
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return obj->name != (PinName)NC;
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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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