ChibiOS 2.6.8, until I can figure out where to get it from git.

firmware/chibios/os/hal/platforms/AT91SAM7/at91lib/aic.c

@@ -0,0 +1,84 @@
+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support  -  ROUSSET  -
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2006, 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:
+ * 
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaiimer below.
+ * 
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the disclaimer below in the documentation and/or
+ * other materials provided with the distribution. 
+ * 
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission. 
+ * 
+ * DISCLAIMER: 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
+ * 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.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+
+#include "aic.h"
+#include <board.h>
+
+//------------------------------------------------------------------------------
+//         Exported functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Configures the interrupt associated with the given source, using the
+/// specified mode and interrupt handler.
+/// \param source  Interrupt source to configure.
+/// \param mode  Triggering mode of the interrupt.
+/// \param handler  Interrupt handler function.
+//------------------------------------------------------------------------------
+void AIC_ConfigureIT(unsigned int source,
+                            unsigned int mode,
+                            void (*handler)( void ))
+{
+    // Disable the interrupt first
+    AT91C_BASE_AIC->AIC_IDCR = 1 << source;
+
+    // Configure mode and handler
+    AT91C_BASE_AIC->AIC_SMR[source] = mode;
+    AT91C_BASE_AIC->AIC_SVR[source] = (unsigned int) handler;
+
+    // Clear interrupt
+    AT91C_BASE_AIC->AIC_ICCR = 1 << source;
+}
+
+//------------------------------------------------------------------------------
+/// Enables interrupts coming from the given (unique) source.
+/// \param source  Interrupt source to enable.
+//------------------------------------------------------------------------------
+void AIC_EnableIT(unsigned int source)
+{
+    AT91C_BASE_AIC->AIC_IECR = 1 << source;
+}
+
+//------------------------------------------------------------------------------
+/// Disables interrupts coming from the given (unique) source.
+/// \param source  Interrupt source to enable.
+//------------------------------------------------------------------------------
+void AIC_DisableIT(unsigned int source)
+{
+    AT91C_BASE_AIC->AIC_IDCR = 1 << source;
+}
+

firmware/chibios/os/hal/platforms/AT91SAM7/at91lib/aic.h

@@ -0,0 +1,78 @@
+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support  -  ROUSSET  -
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2006, 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:
+ * 
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaiimer below.
+ * 
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the disclaimer below in the documentation and/or
+ * other materials provided with the distribution. 
+ * 
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission. 
+ * 
+ * DISCLAIMER: 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
+ * 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.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+/// \dir
+/// !Purpose
+/// 
+/// Methods and definitions for configuring interrupts using the Advanced
+/// Interrupt Controller (AIC).
+/// 
+/// !Usage
+/// -# Configure an interrupt source using AIC_ConfigureIT
+/// -# Enable or disable interrupt generation of a particular source with
+///    AIC_EnableIT and AIC_DisableIT.
+//------------------------------------------------------------------------------
+
+#ifndef AIC_H
+#define AIC_H
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+
+#include <board.h>
+
+//------------------------------------------------------------------------------
+//         Definitions
+//------------------------------------------------------------------------------
+
+#ifndef AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL
+    /// Redefinition of missing constant.
+    #define AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE
+#endif
+
+//------------------------------------------------------------------------------
+//         Global functions
+//------------------------------------------------------------------------------
+
+extern void AIC_ConfigureIT(unsigned int source,
+                                   unsigned int mode,
+                                   void (*handler)( void ));
+
+extern void AIC_EnableIT(unsigned int source);
+
+extern void AIC_DisableIT(unsigned int source);
+
+#endif //#ifndef AIC_H
+