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192 lines
7.3 KiB
192 lines
7.3 KiB
7 years ago
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/*
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/ _____) _ | |
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( (____ _____ ____ _| |_ _____ ____| |__
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\____ \| ___ | (_ _) ___ |/ ___) _ \
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_____) ) ____| | | || |_| ____( (___| | | |
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(______/|_____)_|_|_| \__)_____)\____)_| |_|
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(C)2013 Semtech
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Description: Bleeper board GPIO driver implementation
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License: Revised BSD License, see LICENSE.TXT file include in the project
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Maintainer: Miguel Luis and Gregory Cristian
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*/
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/******************************************************************************
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* @file hw_gpio.c
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* @author MCD Application Team
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* @version V1.1.2
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* @date 08-September-2017
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* @brief driver for GPIO
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics International N.V.
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* All rights reserved.</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "hw.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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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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/*!
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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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}
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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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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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