1 files changed, 100 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/mips/shared/irq/irq.c b/c/src/lib/libbsp/mips/shared/irq/irq.c
new file mode 100644
index 0000000000..e2db163b1f
--- /dev/null
+++ b/c/src/lib/libbsp/mips/shared/irq/irq.c
@@ -0,0 +1,100 @@
+/**
+ * @file
+ *
+ * @ingroup bsp_interrupt
+ *
+ * @brief Interrupt support.
+ */
+
+/*
+ *  Copyright (c) 2005 by Cogent Computer Systems
+ *  Written by Jay Monkman <jtm@lopingdog.com>
+ *
+ *  COPYRIGHT (c) 1989-2012.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ * 
+ *  $Id$
+ */
+
+
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <bsp/irq-generic.h>
+#include <libcpu/isr_entries.h>
+
+static const char *const cause_strings[32] = {
+  /*  0 */ "Int",
+  /*  1 */ "TLB Mods",
+  /*  2 */ "TLB Load",
+  /*  3 */ "TLB Store",
+  /*  4 */ "Address Load",
+  /*  5 */ "Address Store",
+  /*  6 */ "Instruction Bus Error",
+  /*  7 */ "Data Bus Error",
+  /*  8 */ "Syscall",
+  /*  9 */ "Breakpoint",
+  /* 10 */ "Reserved Instruction",
+  /* 11 */ "Coprocessor Unuseable",
+  /* 12 */ "Overflow",
+  /* 13 */ "Trap",
+  /* 14 */ "Instruction Virtual Coherency Error",
+  /* 15 */ "FP Exception",
+  /* 16 */ "Reserved 16",
+  /* 17 */ "Reserved 17",
+  /* 18 */ "Reserved 18",
+  /* 19 */ "Reserved 19",
+  /* 20 */ "Reserved 20",
+  /* 21 */ "Reserved 21",
+  /* 22 */ "Reserved 22",
+  /* 23 */ "Watch",
+  /* 24 */ "Reserved 24",
+  /* 25 */ "Reserved 25",
+  /* 26 */ "Reserved 26",
+  /* 27 */ "Reserved 27",
+  /* 28 */ "Reserved 28",
+  /* 29 */ "Reserved 29",
+  /* 30 */ "Reserved 30",
+  /* 31 */ "Data Virtual Coherency Error"
+};
+
+static inline bool bsp_irq_is_valid(rtems_vector_number vector)
+{
+  return vector <= BSP_INTERRUPT_VECTOR_MAX;
+}
+
+rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
+{
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector)
+{
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code bsp_interrupt_facility_initialize(void)
+{
+  mips_install_isr_entries();
+  return RTEMS_SUCCESSFUL;
+}
+
+void bsp_interrupt_handler_default(rtems_vector_number vector)
+{
+  uint32_t sr;
+  uint32_t cause;
+
+  mips_get_sr( sr );
+  mips_get_cause( cause );
+
+  printk( "Unhandled exception %d\n", vector );
+  printk( "sr: 0x%08x  cause: 0x%08x --> %s\n", sr, cause,
+     cause_strings[(cause >> 2) &0x1f] );
+  #if 0
+    mips_dump_exception_frame( frame );
+  #endif
+  rtems_fatal_error_occurred(1);
+}