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9565962c37
Refactor the GPIO code to use a small lookup table instead of redundant or repetitive code. Signed-off-by: Jona Stubbe <tf-a@jona-stubbe.de> Change-Id: Icf60385095efc1f506e4215d497b60f90e16edfd Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
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* Copyright (c) 2016-2021, 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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#include <export/drivers/gpio_exp.h>
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#define GPIO_DIR_OUT ARM_TF_GPIO_DIR_OUT
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#define GPIO_DIR_IN ARM_TF_GPIO_DIR_IN
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#define GPIO_LEVEL_LOW ARM_TF_GPIO_LEVEL_LOW
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#define GPIO_LEVEL_HIGH ARM_TF_GPIO_LEVEL_HIGH
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#define GPIO_PULL_NONE ARM_TF_GPIO_PULL_NONE
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#define GPIO_PULL_UP ARM_TF_GPIO_PULL_UP
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#define GPIO_PULL_DOWN ARM_TF_GPIO_PULL_DOWN
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#define GPIO_PULL_REPEATER ARM_TF_GPIO_PULL_REPEATER
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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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