1 files changed, 56 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/csb337/irq/irq.c b/c/src/lib/libbsp/arm/csb337/irq/irq.c
new file mode 100644
index 0000000000..95e93845b9
--- /dev/null
+++ b/c/src/lib/libbsp/arm/csb337/irq/irq.c
@@ -0,0 +1,56 @@
+/*
+ * Atmel AT91RM9200 Interrupt handler
+ *
+ * Copyright (c) 2010 embedded brains GmbH.
+ *
+ * Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/score/armv4.h>
+
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <bsp/irq-generic.h>
+
+#include <at91rm9200.h>
+
+void bsp_interrupt_dispatch(void)
+{
+  rtems_vector_number vector = AIC_CTL_REG(AIC_IVR);
+
+  bsp_interrupt_handler_dispatch(vector);
+
+  AIC_CTL_REG(AIC_EOICR) = 0;
+}
+
+void bsp_interrupt_vector_enable(rtems_vector_number vector)
+{
+  bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
+  AIC_CTL_REG(AIC_IECR) = 1 << vector;
+}
+
+void bsp_interrupt_vector_disable(rtems_vector_number vector)
+{
+  bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
+  AIC_CTL_REG(AIC_IDCR) = 1 << vector;
+}
+
+rtems_status_code bsp_interrupt_facility_initialize(void)
+{
+  unsigned long i = 0;
+
+  for (i = 0; i < 32; ++i) {
+    AIC_SVR_REG(i<<2) = i;
+  }
+
+  /* disable all interrupts */
+  AIC_CTL_REG(AIC_IDCR) = 0xffffffff;
+
+  _CPU_ISR_install_vector(ARM_EXCEPTION_IRQ, _ARMV4_Exception_interrupt, NULL);
+
+  return RTEMS_SUCCESSFUL;
+}