/* This source 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 * */ #include #include "compiler.h" #include "preprocessor.h" #include "eic.h" void eic_init(volatile avr32_eic_t *eic, const eic_options_t *opt, unsigned int nb_lines) { int i; for (i = 0; i < nb_lines; i++) { // Set up mode level eic->mode = (opt[i].eic_mode == 1) ? (eic->mode | (1 << opt[i].eic_line)) : (eic->mode & ~(1 << opt[i].eic_line)); // Set up edge type eic->edge = (opt[i].eic_edge == 1) ? (eic->edge | (1 << opt[i].eic_line)) : (eic->edge & ~(1 << opt[i].eic_line)); // Set up level eic->level = (opt[i].eic_level == 1) ? (eic->level | (1 << opt[i].eic_line)) : (eic->level & ~(1 << opt[i].eic_line)); // Set up if filter is used eic->filter = (opt[i].eic_filter == 1) ? (eic->filter | (1 << opt[i].eic_line)) : (eic->filter & ~(1 << opt[i].eic_line)); // Set up which mode is used : asynchronous mode/ synchronous mode eic->async = (opt[i].eic_async == 1) ? (eic->async | (1 << opt[i].eic_line)) : (eic->async & ~(1 << opt[i].eic_line)); } } void eic_enable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) { eic->en = mask_lines; } void eic_enable_line(volatile avr32_eic_t *eic, unsigned int line_number) { // Enable line line_number eic->en = 1 << line_number; } void eic_disable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) { eic->dis = mask_lines; } void eic_disable_line(volatile avr32_eic_t *eic, unsigned int line_number) { // Disable line line_number eic->dis = 1 << line_number; } Bool eic_is_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number) { return (eic->ctrl & (1 << line_number)) != 0; } void eic_enable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) { eic->ier = mask_lines; } void eic_enable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number) { // Enable line line_number eic->ier = 1 << line_number; } void eic_disable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) { Bool global_interrupt_enabled = Is_global_interrupt_enabled(); if (global_interrupt_enabled) Disable_global_interrupt(); eic->idr = mask_lines; eic->imr; if (global_interrupt_enabled) Enable_global_interrupt(); } void eic_disable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number) { Bool global_interrupt_enabled = Is_global_interrupt_enabled(); // Disable line line_number if (global_interrupt_enabled) Disable_global_interrupt(); eic->idr = 1 << line_number; eic->imr; if (global_interrupt_enabled) Enable_global_interrupt(); } Bool eic_is_interrupt_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number) { return (eic->imr & (1 << line_number)) != 0; } void eic_clear_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) { Bool global_interrupt_enabled = Is_global_interrupt_enabled(); if (global_interrupt_enabled) Disable_global_interrupt(); eic->icr = mask_lines; eic->isr; if (global_interrupt_enabled) Enable_global_interrupt(); } void eic_clear_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number) { Bool global_interrupt_enabled = Is_global_interrupt_enabled(); // Clear line line_number if (global_interrupt_enabled) Disable_global_interrupt(); eic->icr = 1 << line_number; eic->isr; if (global_interrupt_enabled) Enable_global_interrupt(); } Bool eic_is_interrupt_line_pending(volatile avr32_eic_t *eic, unsigned int line_number) { return (eic->isr & (1 << line_number)) != 0; } #if !defined(AVR32_EIC_301_H_INCLUDED) void eic_enable_interrupt_scan(volatile avr32_eic_t *eic,unsigned int presc) { // Enable SCAN function with PRESC value eic->scan |= (presc << AVR32_EIC_SCAN_PRESC_OFFSET) | (1 << AVR32_EIC_SCAN_EN_OFFSET); } void eic_disable_interrupt_scan(volatile avr32_eic_t *eic) { // Disable SCAN function eic->scan = 0 << AVR32_EIC_SCAN_EN_OFFSET; } unsigned long eic_get_interrupt_pad_scan(volatile avr32_eic_t *eic) { // Return pad number that causes interrupt return(eic->scan>>AVR32_EIC_SCAN_PIN_OFFSET); } #endif