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82cb2c1ad9
To make software license auditing simpler, use SPDX[0] license identifiers instead of duplicating the license text in every file. NOTE: Files that have been imported by FreeBSD have not been modified. [0]: https://spdx.org/ Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
38 lines
893 B
C
38 lines
893 B
C
/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef __GPIO_H__
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#define __GPIO_H__
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#define GPIO_DIR_OUT 0
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#define GPIO_DIR_IN 1
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#define GPIO_LEVEL_LOW 0
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#define GPIO_LEVEL_HIGH 1
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#define GPIO_PULL_NONE 0
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#define GPIO_PULL_UP 1
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#define GPIO_PULL_DOWN 2
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typedef struct gpio_ops {
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int (*get_direction)(int gpio);
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void (*set_direction)(int gpio, int direction);
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int (*get_value)(int gpio);
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void (*set_value)(int gpio, int value);
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void (*set_pull)(int gpio, int pull);
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int (*get_pull)(int gpio);
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} gpio_ops_t;
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int gpio_get_direction(int gpio);
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void gpio_set_direction(int gpio, int direction);
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int gpio_get_value(int gpio);
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void gpio_set_value(int gpio, int value);
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void gpio_set_pull(int gpio, int pull);
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int gpio_get_pull(int gpio);
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void gpio_init(const gpio_ops_t *ops);
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#endif /* __GPIO_H__ */
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