From 0d9a111face4f3629bcae8e52af843792af3b453 Mon Sep 17 00:00:00 2001 From: "David A. Mellis" Date: Thu, 13 Sep 2012 10:41:16 -0400 Subject: Moving into firmwares directory. --- .../src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c | 183 +++++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c (limited to 'firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c') diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c new file mode 100644 index 0000000..1008c94 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c @@ -0,0 +1,183 @@ +/* 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 \ No newline at end of file -- cgit v1.2.3-18-g5258