diff options
Diffstat (limited to 'include/drivers/gpio.h')
| -rw-r--r-- | include/drivers/gpio.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/drivers/gpio.h b/include/drivers/gpio.h new file mode 100644 index 00000000..5722051f --- /dev/null +++ b/include/drivers/gpio.h @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef __GPIO_H__ +#define __GPIO_H__ + +#define GPIO_DIR_OUT 0 +#define GPIO_DIR_IN 1 + +#define GPIO_LEVEL_LOW 0 +#define GPIO_LEVEL_HIGH 1 + +#define GPIO_PULL_NONE 0 +#define GPIO_PULL_UP 1 +#define GPIO_PULL_DOWN 2 + +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__ */ |