/* / _____) _ | | ( (____ _____ ____ _| |_ _____ ____| |__ \____ \| ___ | (_ _) ___ |/ ___) _ \ _____) ) ____| | | || |_| ____( (___| | | | (______/|_____)_|_|_| \__)_____)\____)_| |_| (C)2013 Semtech Description: Bleeper board GPIO driver implementation License: Revised BSD License, see LICENSE.TXT file include in the project Maintainer: Miguel Luis and Gregory Cristian */ /****************************************************************************** * @file hw_gpio.c * @author MCD Application Team * @version V1.1.2 * @date 08-September-2017 * @brief driver for GPIO ****************************************************************************** * @attention * *

© Copyright (c) 2017 STMicroelectronics International N.V. * 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. Redistribution 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 other * contributors to this software may be used to endorse or promote products * derived from this software without specific written permission. * 4. This software, including modifications and/or derivative works of this * software, must execute solely and exclusively on microcontroller or * microprocessor devices manufactured by or for STMicroelectronics. * 5. Redistribution and use of this software other than as permitted under * this license is void and will automatically terminate your rights under * this license. * * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT * SHALL STMICROELECTRONICS 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. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "hw.h" /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ static GpioIrqHandler *GpioIrq[16] = { NULL }; /* Private function prototypes -----------------------------------------------*/ static uint8_t HW_GPIO_GetBitPos(uint16_t GPIO_Pin); /* Exported functions ---------------------------------------------------------*/ /*! * @brief Initializes the given GPIO object * * @param GPIOx: where x can be (A..E and H) * @param GPIO_Pin: specifies the port bit to be written. * This parameter can be one of GPIO_PIN_x where x can be (0..15). * All port bits are not necessarily available on all GPIOs. * @param [IN] initStruct GPIO_InitTypeDef intit structure * @retval none */ void HW_GPIO_Init( GPIO_TypeDef* port, uint16_t GPIO_Pin, GPIO_InitTypeDef* initStruct) { RCC_GPIO_CLK_ENABLE( (uint32_t) port); initStruct->Pin = GPIO_Pin ; HAL_GPIO_Init( port, initStruct ); } /*! * @brief Records the interrupt handler for the GPIO object * * @param GPIOx: where x can be (A..E and H) * @param GPIO_Pin: specifies the port bit to be written. * This parameter can be one of GPIO_PIN_x where x can be (0..15). * All port bits are not necessarily available on all GPIOs. * @param [IN] prio NVIC priority (0 is highest) * @param [IN] irqHandler points to the function to execute * @retval none */ void HW_GPIO_SetIrq( GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, uint32_t prio, GpioIrqHandler *irqHandler ) { IRQn_Type IRQnb; uint32_t BitPos = HW_GPIO_GetBitPos( GPIO_Pin ) ; if ( irqHandler != NULL) { GpioIrq[ BitPos ] = irqHandler; IRQnb = MSP_GetIRQn( GPIO_Pin ); HAL_NVIC_SetPriority( IRQnb , prio, 0); HAL_NVIC_EnableIRQ( IRQnb ); } } /*! * @brief Execute the interrupt from the object * * @param GPIO_Pin: specifies the port bit to be written. * This parameter can be one of GPIO_PIN_x where x can be (0..15). * All port bits are not necessarily available on all GPIOs. * @retval none */ void HW_GPIO_IrqHandler( uint16_t GPIO_Pin ) { uint32_t BitPos = HW_GPIO_GetBitPos( GPIO_Pin ); if ( GpioIrq[ BitPos ] != NULL) { GpioIrq[ BitPos ] ( ); } } /*! * @brief Writes the given value to the GPIO output * * @param GPIO_Pin: specifies the port bit to be written. * This parameter can be one of GPIO_PIN_x where x can be (0..15). * All port bits are not necessarily available on all GPIOs. * @param [IN] value New GPIO output value * @retval none */ void HW_GPIO_Write( GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, uint32_t value ) { HAL_GPIO_WritePin( GPIOx, GPIO_Pin , (GPIO_PinState) value ); } /*! * @brief Reads the current GPIO input value * * @param GPIOx: where x can be (A..E and H) * @param GPIO_Pin: specifies the port bit to be written. * This parameter can be one of GPIO_PIN_x where x can be (0..15). * All port bits are not necessarily available on all GPIOs. * @retval value Current GPIO input value */ uint32_t HW_GPIO_Read( GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin ) { return HAL_GPIO_ReadPin( GPIOx, GPIO_Pin); } /* Private functions ---------------------------------------------------------*/ /*! * @brief Get the position of the bit set in the GPIO_Pin * @param GPIO_Pin: specifies the port bit to be written. * This parameter can be one of GPIO_PIN_x where x can be (0..15). * All port bits are not necessarily available on all GPIOs. * @retval the position of the bit */ static uint8_t HW_GPIO_GetBitPos(uint16_t GPIO_Pin) { uint8_t PinPos=0; if ( ( GPIO_Pin & 0xFF00 ) != 0) { PinPos |= 0x8; } if ( ( GPIO_Pin & 0xF0F0 ) != 0) { PinPos |= 0x4; } if ( ( GPIO_Pin & 0xCCCC ) != 0) { PinPos |= 0x2; } if ( ( GPIO_Pin & 0xAAAA ) != 0) { PinPos |= 0x1; } return PinPos; } /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/