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