3 files changed, 163 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/mrm332/clock/.cvsignore b/c/src/lib/libbsp/m68k/mrm332/clock/.cvsignore
new file mode 100644
index 0000000000..282522db03
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/mrm332/clock/.cvsignore
@@ -0,0 +1,2 @@
+Makefile
+Makefile.in
diff --git a/c/src/lib/libbsp/m68k/mrm332/clock/Makefile.am b/c/src/lib/libbsp/m68k/mrm332/clock/Makefile.am
new file mode 100644
index 0000000000..3e08045c00
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/mrm332/clock/Makefile.am
@@ -0,0 +1,32 @@
+##
+## $Id$
+##
+
+AUTOMAKE_OPTIONS = foreign 1.4
+
+PGM = $(ARCH)/clock.rel
+
+C_FILES = ckinit.c
+C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
+
+OBJS = $(C_O_FILES)
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../../../../../../automake/lib.am
+
+#
+# (OPTIONAL) Add local stuff here using +=
+#
+
+$(PGM): $(OBJS)
+	$(make-rel)
+
+# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile
+
+all-local: $(ARCH) $(OBJS) $(PGM)
+
+.PRECIOUS: $(PGM)
+
+EXTRA_DIST = ckinit.c
+
+include $(top_srcdir)/../../../../../../automake/local.am
diff --git a/c/src/lib/libbsp/m68k/mrm332/clock/ckinit.c b/c/src/lib/libbsp/m68k/mrm332/clock/ckinit.c
new file mode 100644
index 0000000000..9bd655a1f7
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/mrm332/clock/ckinit.c
@@ -0,0 +1,129 @@
+/*  Clock_init()
+ *
+ *  This routine initailizes the periodic interrupt timer on
+ *  the Motorola 68332.
+ *
+ *  Input parameters:  NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  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.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <stdlib.h>
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <mrm332.h>
+
+#define CLOCK_VECTOR   MRM_PIV
+
+rtems_unsigned32 Clock_isrs;        /* ISRs until next tick */
+volatile rtems_unsigned32 Clock_driver_ticks;
+                                    /* ticks since initialization */
+rtems_isr_entry  Old_ticker;
+
+void Clock_exit( void );
+ 
+/*
+ * These are set by clock driver during its init
+ */
+ 
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_minor_number rtems_clock_minor;
+ 
+rtems_isr Clock_isr(rtems_vector_number vector)
+{
+  Clock_driver_ticks += 1;
+
+  if ( Clock_isrs == 1 ) {
+    rtems_clock_tick();
+    Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
+  }
+  else
+    Clock_isrs -= 1;
+}
+
+void Install_clock(
+  rtems_isr_entry clock_isr
+)
+{
+  Clock_driver_ticks = 0;
+  Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
+
+  Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 );
+
+  /* enable 1mS interrupts */
+  *PITR = (unsigned short int)( SAM(0x09,0,PITM) );/* load counter */
+  *PICR = (unsigned short int)                     /* enable interrupt */
+    ( SAM(ISRL_PIT,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) );
+  
+  atexit( Clock_exit );
+}
+
+void Clock_exit( void )
+{
+  /* shutdown the periodic interrupt */
+  *PICR = (unsigned short int)
+    ( SAM(0,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) );
+  /*     ^^ zero disables interrupt */
+
+  /* do not restore old vector */
+}
+
+rtems_device_driver Clock_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  Install_clock( Clock_isr );
+ 
+  /*
+   * make major/minor avail to others such as shared memory driver
+   */
+ 
+  rtems_clock_major = major;
+  rtems_clock_minor = minor;
+ 
+  return RTEMS_SUCCESSFUL;
+}
+ 
+rtems_device_driver Clock_control(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+    rtems_unsigned32 isrlevel;
+    rtems_libio_ioctl_args_t *args = pargp;
+ 
+    if (args == 0)
+        goto done;
+ 
+    /*
+     * This is hokey, but until we get a defined interface
+     * to do this, it will just be this simple...
+     */
+ 
+    if (args->command == rtems_build_name('I', 'S', 'R', ' '))
+    {
+        Clock_isr(CLOCK_VECTOR);
+    }
+    else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
+    {
+      rtems_interrupt_disable( isrlevel );
+       (void) set_vector( args->buffer, CLOCK_VECTOR, 1 );
+      rtems_interrupt_enable( isrlevel );
+    }
+ 
+done:
+    return RTEMS_SUCCESSFUL;
+}
+