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Diffstat (limited to '')
| -rw-r--r-- | include/drivers/gpio.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/drivers/gpio.h b/include/drivers/gpio.h new file mode 100644 index 0000000..9bba993 --- /dev/null +++ b/include/drivers/gpio.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2016-2021, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef GPIO_H +#define GPIO_H + +#include <export/drivers/gpio_exp.h> + +#define GPIO_DIR_OUT ARM_TF_GPIO_DIR_OUT +#define GPIO_DIR_IN ARM_TF_GPIO_DIR_IN + +#define GPIO_LEVEL_LOW ARM_TF_GPIO_LEVEL_LOW +#define GPIO_LEVEL_HIGH ARM_TF_GPIO_LEVEL_HIGH + +#define GPIO_PULL_NONE ARM_TF_GPIO_PULL_NONE +#define GPIO_PULL_UP ARM_TF_GPIO_PULL_UP +#define GPIO_PULL_DOWN ARM_TF_GPIO_PULL_DOWN +#define GPIO_PULL_REPEATER ARM_TF_GPIO_PULL_REPEATER + +typedef struct gpio_ops { + int (*get_direction)(int gpio); + void (*set_direction)(int gpio, int direction); + int (*get_value)(int gpio); + void (*set_value)(int gpio, int value); + void (*set_pull)(int gpio, int pull); + int (*get_pull)(int gpio); +} gpio_ops_t; + +int gpio_get_direction(int gpio); +void gpio_set_direction(int gpio, int direction); +int gpio_get_value(int gpio); +void gpio_set_value(int gpio, int value); +void gpio_set_pull(int gpio, int pull); +int gpio_get_pull(int gpio); +void gpio_init(const gpio_ops_t *ops); + +#endif /* GPIO_H */ |