GPIO (General Purpose Input/Output) interface. More...
#include <stdbool.h>#include <stdint.h>
Include dependency graph for gpio.h:
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Typedefs | |
| typedef struct hw_gpio_t | hw_gpio_t |
| GPIO logical pin structure. | |
| typedef void(* | hw_gpio_callback_t) (uint8_t bank, uint8_t pin, hw_gpio_event_t event, void *userdata) |
| GPIO interrupt callback function pointer. More... | |
Enumerations | |
| enum | hw_gpio_mode_t { hw_gpio_none = 0, hw_gpio_input, hw_gpio_pullup, hw_gpio_pulldown, hw_gpio_output, hw_gpio_spi, hw_gpio_i2c, hw_gpio_uart, hw_gpio_pwm, hw_gpio_adc, hw_gpio_unknown } |
| GPIO mode flags for configuring GPIO pins. | |
| enum | hw_gpio_event_t { hw_gpio_rising = (1 << 0), hw_gpio_falling = (1 << 1) } |
| GPIO interrupt event flags. | |
Functions | |
Lifecycle | |
| hw_gpio_t * | hw_gpio_init (uint8_t bank, uint8_t pin, hw_gpio_mode_t mode) |
| Initialize a GPIO pin with the specified mode. More... | |
| void | hw_gpio_deinit (hw_gpio_t *gpio) |
| Deinitialize and release a GPIO pin. More... | |
| uint8_t | hw_gpio_count (uint8_t bank) |
| Get the total number of available GPIO pins for a given bank. More... | |
| void | hw_gpio_set_callback (hw_gpio_callback_t callback, void *userdata) |
| Set the global GPIO interrupt callback handler. More... | |
Methods | |
| uint8_t | hw_gpio_pin (const hw_gpio_t *gpio) |
| Get the logical pin number for a GPIO handle. More... | |
| uint8_t | hw_gpio_bank (const hw_gpio_t *gpio) |
| Get the GPIO bank number for a GPIO handle. More... | |
| hw_gpio_mode_t | hw_gpio_get_mode (const hw_gpio_t *gpio) |
| Get the current mode configuration of a GPIO pin. More... | |
| void | hw_gpio_set_mode (hw_gpio_t *gpio, hw_gpio_mode_t mode) |
| Set the current mode configuration of a GPIO pin. More... | |
| bool | hw_gpio_get (const hw_gpio_t *gpio) |
| Read the current state of a GPIO pin. More... | |
| void | hw_gpio_set (hw_gpio_t *gpio, bool value) |
| Set the state of a GPIO pin. More... | |
Detailed Description
GPIO (General Purpose Input/Output) interface.
Definition in file gpio.h.