1 files changed, 62 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/mips/shared/clock/clockdrv.c b/c/src/lib/libbsp/mips/shared/clock/clockdrv.c
new file mode 100644
index 0000000000..f5ae23cc32
--- /dev/null
+++ b/c/src/lib/libbsp/mips/shared/clock/clockdrv.c
@@ -0,0 +1,62 @@
+/*
+ *  COPYRIGHT (c) 1989-2011.
+ *  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: clockdrv.c,v 1.2 2012/02/06 14:17:28 jennifer Exp $
+ */
+
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <bspopts.h>
+
+/* XXX convert to macros? Move to score/cpu? */
+void mips_set_timer(uint32_t timer_clock_interval);
+uint32_t mips_get_timer(void);
+uint32_t bsp_clock_nanoseconds_since_last_tick(void);
+
+/* XXX move to BSP.h or irq.h?? */
+#define EXT_INT5             0x8000  /* external interrupt 5 */
+#define CLOCK_VECTOR_MASK    EXT_INT5
+#define CLOCK_VECTOR         (MIPS_INTERRUPT_BASE+0x7)
+
+extern uint32_t bsp_clicks_per_microsecond;
+
+static uint32_t   mips_timer_rate = 0;
+
+/* refresh the internal CPU timer */
+#define Clock_driver_support_at_tick() \
+  mips_set_timer( mips_timer_rate );
+
+#define Clock_driver_support_install_isr( _new, _old ) \
+  do { \
+    rtems_interrupt_handler_install(CLOCK_VECTOR, \
+      "PIT clock",0, _new, NULL); \
+   } while(0)
+
+#define Clock_driver_support_initialize_hardware() \
+  do { \
+    mips_timer_rate = rtems_configuration_get_microseconds_per_tick() * \
+      bsp_clicks_per_microsecond; \
+    mips_set_timer( mips_timer_rate ); \
+    printk("Clock_mask: %x\n", CLOCK_VECTOR_MASK ); \
+    mips_enable_in_interrupt_mask(CLOCK_VECTOR_MASK); \
+  } while(0)
+
+uint32_t bsp_clock_nanoseconds_since_last_tick(void)
+{
+  return 0;
+}
+
+#define Clock_driver_nanoseconds_since_last_tick \
+  bsp_clock_nanoseconds_since_last_tick
+
+#define Clock_driver_support_shutdown_hardware() \
+  do { \
+    mips_disable_in_interrupt_mask(CLOCK_VECTOR_MASK); \
+  } while (0)
+
+#include "../../../shared/clockdrv_shell.h"