112 lines
4.2 KiB
C
112 lines
4.2 KiB
C
/**************************************************************************/
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/*!
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@file gpio.h
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@author K. Townsend (microBuilder.eu)
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@date 22 March 2010
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@version 0.10
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2010, microBuilder SARL
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All rights reserved.
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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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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**************************************************************************/
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#ifndef _GPIO_H_
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#define _GPIO_H_
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#include "projectconfig.h"
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/**************************************************************************/
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/*!
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Indicates whether the interrupt should be configured as edge or
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level sensitive.
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*/
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/**************************************************************************/
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typedef enum gpioInterruptSense_e
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{
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gpioInterruptSense_Edge = 0,
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gpioInterruptSense_Level
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}
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gpioInterruptSense_t;
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/**************************************************************************/
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/*!
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Indicates whether one edge or both edges trigger an interrupt.
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Setting this to Double will cause both edges to trigger an interrupt.
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*/
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/**************************************************************************/
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typedef enum gpioInterruptEdge_e
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{
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gpioInterruptEdge_Single = 0,
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gpioInterruptEdge_Double
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}
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gpioInterruptEdge_t;
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/**************************************************************************/
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/*!
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Indicates whether the interrupt should be triggered in the rising
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or falling edge. ActiveHigh means that a HIGH level on the pin will
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trigger an interrupt, ActiveLow means that a LOW level on the pin
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will trigger an interrupt.
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*/
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/**************************************************************************/
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typedef enum gpioInterruptEvent_e
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{
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gpioInterruptEvent_ActiveHigh = 0,
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gpioInterruptEvent_ActiveLow
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}
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gpioInterruptEvent_t;
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typedef enum gpioDirection_e
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{
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gpioDirection_Input = 0,
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gpioDirection_Output
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}
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gpioDirection_t;
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typedef enum gpioPullupMode_e
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{
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gpioPullupMode_Inactive = IOCON_COMMON_MODE_INACTIVE,
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gpioPullupMode_PullDown = IOCON_COMMON_MODE_PULLDOWN,
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gpioPullupMode_PullUp = IOCON_COMMON_MODE_PULLUP,
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gpioPullupMode_Repeater = IOCON_COMMON_MODE_REPEATER
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}
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gpioPullupMode_t;
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void gpioInit (void);
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void gpioSetDir (uint32_t portNum, uint32_t bitPos, gpioDirection_t dir);
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uint32_t gpioGetValue (uint32_t portNum, uint32_t bitPos);
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void gpioSetValue (uint32_t portNum, uint32_t bitPos, uint32_t bitVal);
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void gpioSetInterrupt (uint32_t portNum, uint32_t bitPos, gpioInterruptSense_t sense, gpioInterruptEdge_t edge, gpioInterruptEvent_t event);
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void gpioIntEnable (uint32_t portNum, uint32_t bitPos);
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void gpioIntDisable (uint32_t portNum, uint32_t bitPos);
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uint32_t gpioIntStatus (uint32_t portNum, uint32_t bitPos);
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void gpioIntClear (uint32_t portNum, uint32_t bitPos);
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void gpioSetPullup (volatile uint32_t *ioconRegister, gpioPullupMode_t mode);
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#endif |