Merged upstream arduino branch

1 files changed, 183 insertions, 0 deletions

diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c
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+++ 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 <avr32/io.h>
+#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
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