2010-09-27 09:28:45 +02:00
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/**
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******************************************************************************
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* @addtogroup PIOS PIOS Core hardware abstraction layer
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* @{
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* @defgroup PIOS_GPIO GPIO Functions
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* @brief GPIO hardware code for STM32
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* @{
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*
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* @file pios_gpio.c
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* @brief GPIO functions, init, toggle, on & off.
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* Project Includes */
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#include "pios.h"
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#if defined(PIOS_INCLUDE_GPIO)
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/* Private Function Prototypes */
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/* Local Variables */
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static GPIO_TypeDef *GPIO_PORT[PIOS_GPIO_NUM] = PIOS_GPIO_PORTS;
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static const uint32_t GPIO_PIN[PIOS_GPIO_NUM] = PIOS_GPIO_PINS;
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static const uint32_t GPIO_CLK[PIOS_GPIO_NUM] = PIOS_GPIO_CLKS;
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/**
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* Initialises all the GPIO's
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*/
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void PIOS_GPIO_Init(void)
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{
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/* Do nothing */
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}
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/**
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* Enable a GPIO Pin
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* \param[in] Pin Pin Number
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*/
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void PIOS_GPIO_Enable(uint8_t Pin)
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{
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//RCC_APB2PeriphClockCmd(GPIO_CLK[Pin], ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Pin];
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GPIO_Init(GPIO_PORT[Pin], &GPIO_InitStructure);
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/* GPIO's Off */
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GPIO_PORT[Pin]->BSRR = GPIO_PIN[Pin];
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}
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/**
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* Turn on Pin
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* \param[in] Pin Pin Number
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*/
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void PIOS_GPIO_On(uint8_t Pin)
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{
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GPIO_PORT[Pin]->BRR = GPIO_PIN[Pin];
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}
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/**
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* Turn off Pin
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* \param[in] Pin Pin Number
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*/
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void PIOS_GPIO_Off(uint8_t Pin)
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{
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GPIO_PORT[Pin]->BSRR = GPIO_PIN[Pin];
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}
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/**
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* Toggle Pin on/off
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* \param[in] Pin Pin Number
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*/
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void PIOS_GPIO_Toggle(uint8_t Pin)
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{
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GPIO_PORT[Pin]->ODR ^= GPIO_PIN[Pin];
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}
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#endif
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/**
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* @}
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* @}
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*/
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