| /* |
| * Copyright (c) 2016 Open-RnD Sp. z o.o. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @brief Driver for External interrupt/event controller in STM32 MCUs |
| * |
| * Based on reference manuals: |
| * RM0008 Reference Manual: STM32F101xx, STM32F102xx, STM32F103xx, STM32F105xx |
| * and STM32F107xx advanced ARM(r)-based 32-bit MCUs |
| * and |
| * RM0368 Reference manual STM32F401xB/C and STM32F401xD/E |
| * advanced ARM(r)-based 32-bit MCUs |
| * |
| * Chapter 10.2: External interrupt/event controller (EXTI) |
| * |
| */ |
| |
| #ifndef _STM32_EXTI_H_ |
| #define _STM32_EXTI_H_ |
| |
| #include <zephyr/types.h> |
| |
| /* device name */ |
| #define STM32_EXTI_NAME "stm32-exti" |
| |
| /** |
| * @brief enable EXTI interrupt for specific line |
| * |
| * @param line EXTI# line |
| */ |
| void stm32_exti_enable(int line); |
| |
| /** |
| * @brief disable EXTI interrupt for specific line |
| * |
| * @param line EXTI# line |
| */ |
| void stm32_exti_disable(int line); |
| |
| /** |
| * @brief EXTI trigger flags |
| */ |
| enum stm32_exti_trigger { |
| /* trigger on rising edge */ |
| STM32_EXTI_TRIG_RISING = 0x1, |
| /* trigger on falling endge */ |
| STM32_EXTI_TRIG_FALLING = 0x2, |
| }; |
| |
| /** |
| * @brief set EXTI interrupt line triggers |
| * |
| * @param line EXTI# line |
| * @param trg OR'ed stm32_exti_trigger flags |
| */ |
| void stm32_exti_trigger(int line, int trg); |
| |
| /* callback for exti interrupt */ |
| typedef void (*stm32_exti_callback_t) (int line, void *user); |
| |
| /** |
| * @brief set EXTI interrupt callback |
| * |
| * @param line EXI# line |
| * @param cb user callback |
| * @param arg user arg |
| */ |
| void stm32_exti_set_callback(int line, stm32_exti_callback_t cb, void *data); |
| |
| /** |
| * @brief unset EXTI interrupt callback |
| * |
| * @param line EXI# line |
| */ |
| void stm32_exti_unset_callback(int line); |
| |
| #endif /* _STM32_EXTI_H_ */ |