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Diff: targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.h
- Revision:
- 0:13413ea9a877
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.h Sun Jun 12 14:02:44 2022 +0000 @@ -0,0 +1,95 @@ +/* mbed Microcontroller Library + ******************************************************************************* + * Copyright (c) 2017, STMicroelectronics + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************* + */ +#ifndef MBED_GPIO_IRQ_DEVICE_H +#define MBED_GPIO_IRQ_DEVICE_H + +#ifdef __cplusplus +extern "C" { +#endif + +// when LL is available, below include can be used +// #include "stm32f4xx_ll_exti.h" +// until then let's define locally the required functions +__STATIC_INLINE void LL_EXTI_EnableRisingTrig_0_31(uint32_t ExtiLine) +{ + SET_BIT(EXTI->RTSR, ExtiLine); +} +__STATIC_INLINE void LL_EXTI_DisableRisingTrig_0_31(uint32_t ExtiLine) +{ + CLEAR_BIT(EXTI->RTSR, ExtiLine); +} +__STATIC_INLINE void LL_EXTI_EnableFallingTrig_0_31(uint32_t ExtiLine) +{ + SET_BIT(EXTI->FTSR, ExtiLine); +} +__STATIC_INLINE void LL_EXTI_DisableFallingTrig_0_31(uint32_t ExtiLine) +{ + CLEAR_BIT(EXTI->FTSR, ExtiLine); +} +__STATIC_INLINE void LL_EXTI_EnableIT_0_31(uint32_t ExtiLine) +{ + SET_BIT(EXTI->IMR, ExtiLine); +} +__STATIC_INLINE void LL_EXTI_DisableIT_0_31(uint32_t ExtiLine) +{ + CLEAR_BIT(EXTI->IMR, ExtiLine); +} +// Above lines shall be later defined in LL + +// Number of EXTI irq vectors (EXTI0, EXTI1, EXTI2, EXTI3, EXTI4, EXTI5_9, EXTI10_15) +#define CHANNEL_NUM (7) + +#define EXTI_IRQ0_NUM_LINES 1 +#define EXTI_IRQ1_NUM_LINES 1 +#define EXTI_IRQ2_NUM_LINES 1 +#define EXTI_IRQ3_NUM_LINES 1 +#define EXTI_IRQ4_NUM_LINES 1 +#define EXTI_IRQ5_NUM_LINES 5 +#define EXTI_IRQ6_NUM_LINES 6 + +// Max pins for one line (max with EXTI10_15) +#define MAX_PIN_LINE (EXTI_IRQ6_NUM_LINES) + +/* Structure to describe how the HW EXTI lines are defined in this HW */ +typedef struct exti_lines { + uint32_t gpio_idx; // an index entry for each EXIT line + uint32_t irq_index; // the IRQ index + IRQn_Type irq_n; // the corresponding EXTI IRQn +} exti_lines_t; + +// Used to return the index for channels array. +extern const exti_lines_t pin_lines_desc[]; + +#ifdef __cplusplus +} +#endif + +#endif +