/**
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******************************************************************************
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* File Name : gpio.c
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* Description : This file provides code for the configuration
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* of all used GPIO pins.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Ultimate Liberty license
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* SLA0044, the "License"; You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* www.st.com/SLA0044
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "gpio.h"
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#include "board_common.h"
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/* USER CODE END 0 */
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/*----------------------------------------------------------------------------*/
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/* Configure GPIO */
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/*----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------*/
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/* Configure GPIO */
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/*----------------------------------------------------------------------------*/
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extern IRQn_Type MSP_GetIRQn( uint16_t GPIO_Pin);
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/** Configure pins as
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* Analog
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* Input
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* Output
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* EVENT_OUT
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* EXTI
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*/
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void Board_GPIOInit(void)
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{
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/* GPIO Ports Clock Enable */
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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}
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static GpioIrqHandler *GpioIrq[16] = { NULL };
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/* Private function prototypes -----------------------------------------------*/
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static uint8_t HW_GPIO_GetBitPos(uint16_t GPIO_Pin);
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/* Exported functions ---------------------------------------------------------*/
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/*!
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* @brief Initializes the given GPIO object
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*
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* @param GPIOx: where x can be (A..E and H)
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* @param GPIO_Pin: specifies the port bit to be written.
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* This parameter can be one of GPIO_PIN_x where x can be (0..15).
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* All port bits are not necessarily available on all GPIOs.
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* @param [IN] initStruct GPIO_InitTypeDef intit structure
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* @retval none
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*/
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void HW_GPIO_Init( GPIO_TypeDef* port, uint16_t GPIO_Pin, GPIO_InitTypeDef* initStruct)
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{
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RCC_GPIO_CLK_ENABLE( (uint32_t) port);
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initStruct->Pin = GPIO_Pin ;
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HAL_GPIO_Init( port, initStruct );
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}
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void HW_GPIO_DeInit( GPIO_TypeDef* port, uint16_t GPIO_Pin)
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{
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HAL_GPIO_DeInit(port, GPIO_Pin);
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}
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/*!
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* @brief Records the interrupt handler for the GPIO object
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*
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* @param GPIOx: where x can be (A..E and H)
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* @param GPIO_Pin: specifies the port bit to be written.
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* This parameter can be one of GPIO_PIN_x where x can be (0..15).
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* All port bits are not necessarily available on all GPIOs.
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* @param [IN] prio NVIC priority (0 is highest)
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* @param [IN] irqHandler points to the function to execute
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* @retval none
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*/
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void HW_GPIO_SetIrq( GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, uint32_t prio, GpioIrqHandler *irqHandler )
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{
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IRQn_Type IRQnb;
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uint32_t BitPos = HW_GPIO_GetBitPos( GPIO_Pin ) ;
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if ( irqHandler != NULL)
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{
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GpioIrq[ BitPos ] = irqHandler;
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IRQnb = MSP_GetIRQn( GPIO_Pin );
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HAL_NVIC_SetPriority( IRQnb , prio, 0);
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HAL_NVIC_EnableIRQ( IRQnb );
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}
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else
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{
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GpioIrq[ BitPos ] = NULL;
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}
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}
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/*!
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* @brief Execute the interrupt from the object
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*
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* @param GPIO_Pin: specifies the port bit to be written.
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* This parameter can be one of GPIO_PIN_x where x can be (0..15).
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* All port bits are not necessarily available on all GPIOs.
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* @retval none
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*/
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void HW_GPIO_IrqHandler( uint16_t GPIO_Pin )
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{
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uint32_t BitPos = HW_GPIO_GetBitPos( GPIO_Pin );
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if ( GpioIrq[ BitPos ] != NULL)
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{
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GpioIrq[ BitPos ] ( );
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}
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}
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/*!
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* @brief Writes the given value to the GPIO output
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*
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* @param GPIO_Pin: specifies the port bit to be written.
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* This parameter can be one of GPIO_PIN_x where x can be (0..15).
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* All port bits are not necessarily available on all GPIOs.
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* @param [IN] value New GPIO output value
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* @retval none
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*/
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void HW_GPIO_Write( GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, uint32_t value )
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{
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HAL_GPIO_WritePin( GPIOx, GPIO_Pin , (GPIO_PinState) value );
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}
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/*!
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* @brief Reads the current GPIO input value
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*
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* @param GPIOx: where x can be (A..E and H)
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* @param GPIO_Pin: specifies the port bit to be written.
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* This parameter can be one of GPIO_PIN_x where x can be (0..15).
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* All port bits are not necessarily available on all GPIOs.
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* @retval value Current GPIO input value
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*/
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uint32_t HW_GPIO_Read( GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin )
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{
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return HAL_GPIO_ReadPin( GPIOx, GPIO_Pin);
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}
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/* Private functions ---------------------------------------------------------*/
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/*!
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* @brief Get the position of the bit set in the GPIO_Pin
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* @param GPIO_Pin: specifies the port bit to be written.
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* This parameter can be one of GPIO_PIN_x where x can be (0..15).
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* All port bits are not necessarily available on all GPIOs.
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* @retval the position of the bit
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*/
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static uint8_t HW_GPIO_GetBitPos(uint16_t GPIO_Pin)
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{
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uint8_t PinPos=0;
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if ( ( GPIO_Pin & 0xFF00 ) != 0) { PinPos |= 0x8; }
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if ( ( GPIO_Pin & 0xF0F0 ) != 0) { PinPos |= 0x4; }
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if ( ( GPIO_Pin & 0xCCCC ) != 0) { PinPos |= 0x2; }
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if ( ( GPIO_Pin & 0xAAAA ) != 0) { PinPos |= 0x1; }
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return PinPos;
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}
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
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{
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HW_GPIO_IrqHandler( GPIO_Pin );
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}
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/**
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* @brief Gets IRQ number as a function of the GPIO_Pin.
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* @param GPIO_Pin: Specifies the pins connected to the EXTI line.
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* @retval IRQ number
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*/
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IRQn_Type MSP_GetIRQn( uint16_t GPIO_Pin)
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{
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switch( GPIO_Pin )
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{
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case GPIO_PIN_0: return EXTI0_IRQn;
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case GPIO_PIN_1: return EXTI1_IRQn;
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case GPIO_PIN_2: return EXTI2_IRQn;
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case GPIO_PIN_3: return EXTI3_IRQn;
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case GPIO_PIN_4: return EXTI4_IRQn;
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case GPIO_PIN_5:
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case GPIO_PIN_6:
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case GPIO_PIN_7:
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case GPIO_PIN_8:
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case GPIO_PIN_9: return EXTI9_5_IRQn;
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case GPIO_PIN_10:
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case GPIO_PIN_11:
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case GPIO_PIN_12:
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case GPIO_PIN_13:
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case GPIO_PIN_14:
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case GPIO_PIN_15:
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default: return EXTI15_10_IRQn;
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}
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}
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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