| /* |
| * Copyright (c) 2021 Teslabs Engineering S.L. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef ZEPHYR_INCLUDE_DRIVERS_INTERRUPT_CONTROLLER_GD32_EXTI_H_ |
| #define ZEPHYR_INCLUDE_DRIVERS_INTERRUPT_CONTROLLER_GD32_EXTI_H_ |
| |
| #include <stdint.h> |
| |
| #include <zephyr/sys/util_macro.h> |
| |
| /** |
| * @name EXTI trigger modes. |
| * @anchor GD32_EXTI_TRIG |
| * @{ |
| */ |
| |
| /** No trigger */ |
| #define GD32_EXTI_TRIG_NONE 0U |
| /** Trigger on rising edge */ |
| #define GD32_EXTI_TRIG_RISING BIT(0) |
| /** Trigger on falling edge */ |
| #define GD32_EXTI_TRIG_FALLING BIT(1) |
| /** Trigger on rising and falling edge */ |
| #define GD32_EXTI_TRIG_BOTH (GD32_EXTI_TRIG_RISING | GD32_EXTI_TRIG_FALLING) |
| |
| /** @} */ |
| |
| /** Callback for EXTI interrupt. */ |
| typedef void (*gd32_exti_cb_t)(uint8_t line, void *user); |
| |
| /** |
| * @brief Enable EXTI interrupt for the given line. |
| * |
| * @param line EXTI line. |
| */ |
| void gd32_exti_enable(uint8_t line); |
| |
| /** |
| * @brief Disable EXTI interrupt for the given line. |
| * |
| * @param line EXTI line. |
| */ |
| void gd32_exti_disable(uint8_t line); |
| |
| /** |
| * @brief Configure EXTI interrupt trigger mode for the given line. |
| * |
| * @param line EXTI line. |
| * @param trigger Trigger mode (see @ref GD32_EXTI_TRIG). |
| */ |
| void gd32_exti_trigger(uint8_t line, uint8_t trigger); |
| |
| /** |
| * @brief Configure EXTI interrupt callback. |
| * |
| * @param line EXTI line. |
| * @param cb Callback (NULL to disable). |
| * @param user User data (optional). |
| * |
| * @retval 0 On success. |
| * @retval -EALREADY If callback is already set and @p cb is not NULL. |
| */ |
| int gd32_exti_configure(uint8_t line, gd32_exti_cb_t cb, void *user); |
| |
| #endif /* ZEPHYR_INCLUDE_DRIVERS_INTERRUPT_CONTROLLER_GD32_EXTI_H_ */ |