diff options
Diffstat (limited to 'include/drivers/rpi3/gpio')
| -rw-r--r-- | include/drivers/rpi3/gpio/rpi3_gpio.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/drivers/rpi3/gpio/rpi3_gpio.h b/include/drivers/rpi3/gpio/rpi3_gpio.h new file mode 100644 index 0000000..7bb3ee2 --- /dev/null +++ b/include/drivers/rpi3/gpio/rpi3_gpio.h @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2019, Linaro Limited + * Copyright (c) 2019, Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef RPI3_GPIO_H +#define RPI3_GPIO_H + +#include <stdint.h> +#include <drivers/gpio.h> + +void rpi3_gpio_init(void); +int rpi3_gpio_get_select(int gpio); +void rpi3_gpio_set_select(int gpio, int fsel); + +#define RPI3_GPIO_GPFSEL(n) ((n) * U(0x04)) +#define RPI3_GPIO_GPSET(n) (((n) * U(0x04)) + U(0x1C)) +#define RPI3_GPIO_GPCLR(n) (((n) * U(0x04)) + U(0x28)) +#define RPI3_GPIO_GPLEV(n) (((n) * U(0x04)) + U(0x34)) +#define RPI3_GPIO_GPPUD U(0x94) +#define RPI3_GPIO_GPPUDCLK(n) (((n) * U(0x04)) + U(0x98)) + +#define RPI3_GPIO_FUNC_INPUT U(0) +#define RPI3_GPIO_FUNC_OUTPUT U(1) +#define RPI3_GPIO_FUNC_ALT0 U(4) +#define RPI3_GPIO_FUNC_ALT1 U(5) +#define RPI3_GPIO_FUNC_ALT2 U(6) +#define RPI3_GPIO_FUNC_ALT3 U(7) +#define RPI3_GPIO_FUNC_ALT4 U(3) +#define RPI3_GPIO_FUNC_ALT5 U(2) + +#endif /* RPI3_GPIO_H */ |