Aaron Fischer
f24858d162
This step seems bold, but is saves us so much hassle. Even better, we have a reliable codebase, with all the dependencies (and their versions) we need in order to build the project. If a library got an update, we can replace it inplace if the code is still compatible.
276 lines
8.9 KiB
C
276 lines
8.9 KiB
C
/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */
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/*This file is prepared for Doxygen automatic documentation generation.*/
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/*! \file *********************************************************************
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*
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* \brief EIC driver for AVR32 UC3.
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*
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* AVR32 External Interrupt Controller driver module.
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*
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* - Compiler: IAR EWAVR32 and GNU GCC for AVR32
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* - Supported devices: All AVR32 devices with an EIC module can be used.
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* - AppNote:
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*
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* \author Atmel Corporation: http://www.atmel.com \n
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* Support and FAQ: http://support.atmel.no/
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*
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******************************************************************************/
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/* Copyright (c) 2009 Atmel Corporation. All rights reserved.
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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. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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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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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an Atmel
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* AVR product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY 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 _EIC_H_
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#define _EIC_H_
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#include "compiler.h"
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/*! \name External Interrupt lines
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*/
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//! @{
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#if (UC3A || UC3B)
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#define EXT_INT0 AVR32_EIC_INT0 //!< Line 0
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#define EXT_INT1 AVR32_EIC_INT1 //!< Line 1
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#define EXT_INT2 AVR32_EIC_INT2 //!< Line 2
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#define EXT_INT3 AVR32_EIC_INT3 //!< Line 3
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#define EXT_INT4 AVR32_EIC_INT4 //!< Line 4
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#define EXT_INT5 AVR32_EIC_INT5 //!< Line 5
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#define EXT_INT6 AVR32_EIC_INT6 //!< Line 6
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#define EXT_INT7 AVR32_EIC_INT7 //!< Line 7
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#define EXT_NMI AVR32_EIC_NMI //!< Line 8
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#else
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#define EXT_INT0 AVR32_EIC_INT1 //!< Line 0
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#define EXT_INT1 AVR32_EIC_INT2 //!< Line 1
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#define EXT_INT2 AVR32_EIC_INT3 //!< Line 2
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#define EXT_INT3 AVR32_EIC_INT4 //!< Line 3
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#define EXT_INT4 AVR32_EIC_INT5 //!< Line 4
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#define EXT_INT5 AVR32_EIC_INT6 //!< Line 5
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#define EXT_INT6 AVR32_EIC_INT7 //!< Line 6
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#define EXT_INT7 AVR32_EIC_INT8 //!< Line 7
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#define EXT_NMI AVR32_EIC_NMI //!< Line 8
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#endif
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//! @}
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/*! \name Mode Trigger Options
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*/
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//! @{
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#define EIC_MODE_EDGE_TRIGGERED AVR32_EIC_EDGE_IRQ //!<
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#define EIC_MODE_LEVEL_TRIGGERED AVR32_EIC_LEVEL_IRQ //!<
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//! @}
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/*! \name Edge level Options
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*/
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//! @{
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#define EIC_EDGE_FALLING_EDGE AVR32_EIC_FALLING_EDGE //!<
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#define EIC_EDGE_RISING_EDGE AVR32_EIC_RISING_EDGE //!<
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//! @}
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/*! \name Level Options
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*/
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//! @{
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#define EIC_LEVEL_LOW_LEVEL AVR32_EIC_LOW_LEVEL //!<
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#define EIC_LEVEL_HIGH_LEVEL AVR32_EIC_HIGH_LEVEL //!<
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//! @}
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/*! \name Filter Options
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*/
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//! @{
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#define EIC_FILTER_ENABLED AVR32_EIC_FILTER_ON //!<
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#define EIC_FILTER_DISABLED AVR32_EIC_FILTER_OFF //!<
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//! @}
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/*! \name Synch Mode Options
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*/
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//! @{
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#define EIC_SYNCH_MODE AVR32_EIC_SYNC //!<
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#define EIC_ASYNCH_MODE AVR32_EIC_USE_ASYNC //!<
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//! @}
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//! Configuration parameters of the EIC module.
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typedef struct
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{
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//!Line
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unsigned char eic_line;
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//! Mode : EDGE_LEVEL or TRIGGER_LEVEL
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unsigned char eic_mode;
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//! Edge : FALLING_EDGE or RISING_EDGE
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unsigned char eic_edge;
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//! Level : LOW_LEVEL or HIGH_LEVEL
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unsigned char eic_level;
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//! Filter: NOT_FILTERED or FILTERED
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unsigned char eic_filter;
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//! Async: SYNC mode or ASYNC
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unsigned char eic_async;
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} eic_options_t;
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/*! \brief Init the EIC driver.
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*
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* \param eic Base address of the EIC module
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* \param opt Configuration parameters of the EIC module (see \ref eic_options_t)
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* \param nb_lines Number of lines to consider, equal to size of opt buffer
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*/
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extern void eic_init(volatile avr32_eic_t *eic, const eic_options_t *opt, unsigned int nb_lines);
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/*! \brief Enable the EIC driver.
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*
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* \param eic Base address of the EIC module
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* \param mask_lines Mask for current selected lines
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*/
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extern void eic_enable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines);
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/*! \brief Enable the EIC driver.
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*
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* \param eic Base address of the EIC module
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* \param line_number Line number to enable
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*/
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extern void eic_enable_line(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \brief Disable the EIC driver.
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*
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* \param eic Base address of the EIC module
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* \param mask_lines Mask for current selected lines
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*/
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extern void eic_disable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines);
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/*! \brief Disable the EIC driver.
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*
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* \param eic Base address of the EIC module
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* \param line_number Line number to disable
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*/
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extern void eic_disable_line(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \brief Tells whether an EIC line is enabled.
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*
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* \param eic Base address of the EIC module
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* \param line_number Line number to test
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*
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* \return Whether an EIC line is enabled.
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*/
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extern Bool eic_is_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \name Interrupt Control Functions
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*/
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//! @{
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/*! \brief Enable the interrupt feature of the EIC.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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* \param mask_lines Mask for current selected lines
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*/
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extern void eic_enable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines);
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/*! \brief Enable the interrupt feature of the EIC.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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* \param line_number Line number to enable
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*/
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extern void eic_enable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \brief Disable the interrupt feature of the EIC.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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* \param mask_lines Mask for current selected lines
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*/
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extern void eic_disable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines);
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/*! \brief Disable the interrupt feature of the EIC.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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* \param line_number Line number to disable
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*/
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extern void eic_disable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \brief Tells whether an EIC interrupt line is enabled.
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*
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* \param eic Base address of the EIC module
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* \param line_number Line number to test
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*
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* \return Whether an EIC interrupt line is enabled.
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*/
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extern Bool eic_is_interrupt_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \brief Clear the interrupt flag.
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* Call this function once you've handled the interrupt.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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* \param mask_lines Mask for current selected lines
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*/
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extern void eic_clear_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines);
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/*! \brief Clear the interrupt flag.
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* Call this function once you've handled the interrupt.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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* \param line_number Line number to clear
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*/
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extern void eic_clear_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \brief Tells whether an EIC interrupt line is pending.
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*
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* \param eic Base address of the EIC module
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* \param line_number Line number to test
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*
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* \return Whether an EIC interrupt line is pending.
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*/
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extern Bool eic_is_interrupt_line_pending(volatile avr32_eic_t *eic, unsigned int line_number);
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/*! \brief Enable the interrupt scan feature of the EIC.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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* \param presc Prescale select for the keypad scan rate in the range [0,31].
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*/
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extern void eic_enable_interrupt_scan(volatile avr32_eic_t *eic, unsigned int presc);
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/*! \brief Disable the interrupt scan feature of the EIC.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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*/
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extern void eic_disable_interrupt_scan(volatile avr32_eic_t *eic);
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/*! \brief Return scan pad number that causes interrupt.
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*
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* \param eic Base address of the EIC (i.e. &AVR32_EIC).
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*/
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extern unsigned long eic_get_interrupt_pad_scan(volatile avr32_eic_t *eic);
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//! @}
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#endif // _EIC_H_
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