1 files changed, 71 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/gba/irq/irq_init.c b/c/src/lib/libbsp/arm/gba/irq/irq_init.c
new file mode 100644
index 0000000000..c2b5c1da03
--- /dev/null
+++ b/c/src/lib/libbsp/arm/gba/irq/irq_init.c
@@ -0,0 +1,71 @@
+/**
+ *  @file irq_init.c
+ *
+ *  This file contains the implementation of rtems initialization
+ *  related to interrupt handling.
+ */
+/*
+ *  RTEMS GBA BSP
+ *
+ *  CopyRight (C) 2000 Canon Research Centre France SA.
+ *      Emmanuel Raguet, mailto:raguet@crf.canon.fr
+ *
+ *  Copyright (c) 2004  Markku Puro <markku.puro@kopteri.net>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+#include <stdint.h>
+#include <bsp.h>
+#include <irq.h>
+#include <rtems/bspIo.h>
+
+/**  default int vector */
+extern void _ISR_Handler(void);
+
+/** max number of vectors, defined in linkcmds  */
+extern  void _irq_max_vector;
+
+/**
+ *  @brief default_int_handler BSP routine is default int_handler
+ *
+ *  @param  None
+ *  @return None
+ */
+void default_int_handler(void)
+{
+    printk("raw_idt_notify has been called \n");
+}
+
+/**
+ *  @brief rtems_irq_mngt_init BSP routine initialize rtems_irq_mngt
+ *
+ *  @param  None
+ *  @return None
+ */
+void  rtems_irq_mngt_init(void)
+{
+    int   i;
+    uint32_t              *vectorTable;
+    rtems_interrupt_level  level;
+
+    vectorTable = (uint32_t *)VECTOR_TABLE;
+
+    _CPU_ISR_Disable(level);
+
+    /* @todo Can't use exception vectors in GBA because they are already in GBA ROM BIOS */
+    /* First, connect the ISR_Handler for IRQ and FIQ interrupts */
+    /*_CPU_ISR_install_vector(ARM_EXCEPTION_IRQ, _ISR_Handler, NULL);*/
+    /*_CPU_ISR_install_vector(ARM_EXCEPTION_FIQ, _ISR_Handler, NULL);*/
+
+    /* Initialize the vector table contents with default handler */
+    for (i=0 ; i < (uint32_t)&_irq_max_vector ; i++) {
+       *(vectorTable + i) = (uint32_t)(default_int_handler);
+    }
+    /* Initialize the INT at the BSP level */
+    BSP_rtems_irq_mngt_init();
+}
+