2001-01-05 Joel Sherrill <joel@OARcorp.com>

	* devnull: New addition.  Moved from libcpu/sh.
	* devnull/devnull.c, devnull/devnull.h, devnull/.cvsignore,
	devnull/Makefile.am: New files.
	* Makefile.am, configure.in, wrapup/Makefile.am: Modified to reflect
	addition of above.

4 files changed, 290 insertions, 0 deletions

diff --git a/c/src/libmisc/devnull/.cvsignore b/c/src/libmisc/devnull/.cvsignore
new file mode 100644
index 0000000000..282522db03
--- /dev/null
+++ b/c/src/libmisc/devnull/.cvsignore
@@ -0,0 +1,2 @@
+Makefile
+Makefile.in
diff --git a/c/src/libmisc/devnull/Makefile.am b/c/src/libmisc/devnull/Makefile.am
new file mode 100644
index 0000000000..9154a40725
--- /dev/null
+++ b/c/src/libmisc/devnull/Makefile.am
@@ -0,0 +1,43 @@
+##
+## $Id$
+##
+
+AUTOMAKE_OPTIONS = foreign 1.4
+
+LIBNAME = libdevnull-tmp
+LIB = $(ARCH)/$(LIBNAME).a
+
+
+C_FILES = devnull.c
+C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
+
+H_FILES = devnull.h
+
+OBJS = $(C_O_FILES)
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../../../automake/compile.am
+include $(top_srcdir)/../../../automake/lib.am
+
+$(PROJECT_INCLUDE)/rtems:
+	@$(mkinstalldirs) $@
+$(PROJECT_INCLUDE)/rtems/%.h: %.h
+	$(INSTALL_DATA) $< $@
+
+#
+# (OPTIONAL) Add local stuff here using +=
+#
+
+$(LIB): $(OBJS)
+	$(make-library)
+
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/rtems \
+    $(H_FILES:%=$(PROJECT_INCLUDE)/rtems/%)
+
+all-local: $(ARCH) $(PREINSTALL_FILES) $(OBJS) $(LIB)
+
+.PRECIOUS: $(LIB)
+
+EXTRA_DIST = devnull.c
+
+include $(top_srcdir)/../../../automake/local.am
diff --git a/c/src/libmisc/devnull/devnull.c b/c/src/libmisc/devnull/devnull.c
new file mode 100644
index 0000000000..c569fcb2ba
--- /dev/null
+++ b/c/src/libmisc/devnull/devnull.c
@@ -0,0 +1,174 @@
+/*  /dev/null
+ *
+ *  Derived from rtems' stub driver.
+ *
+ *  Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
+ *
+ *  COPYRIGHT (c) 1989-2000.
+ *  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 <rtems.h>
+#include <rtems/devnull.h>
+#include <rtems/libio.h>
+
+/*  null_initialize
+ *
+ *  This routine is the null device driver init routine.
+ *
+ *  Input parameters:
+ *    major - device major number
+ *    minor - device minor number
+ *    pargp - pointer to parameter block
+ *
+ *  Output parameters:
+ *    rval       - NULL_SUCCESSFUL
+ */
+
+rtems_unsigned32 NULL_major;
+
+rtems_device_driver null_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  rtems_device_driver status ;
+  
+  status = rtems_io_register_name(
+    "/dev/null",
+    major,
+    (rtems_device_minor_number) 0
+    );
+
+  if (status != RTEMS_SUCCESSFUL)
+    rtems_fatal_error_occurred(status);
+      
+  NULL_major = major;
+  
+  return RTEMS_SUCCESSFUL;
+}
+
+/*  null_open
+ *
+ *  This routine is the null device driver open routine.
+ *
+ *  Input parameters:
+ *    major - device major number
+ *    minor - device minor number
+ *    pargb - pointer to open parameter block
+ *
+ *  Output parameters:
+ *    rval       - NULL_SUCCESSFUL
+ */
+
+rtems_device_driver null_open(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  return NULL_SUCCESSFUL;
+}
+
+
+/*  null_close
+ *
+ *  This routine is the null device driver close routine.
+ *
+ *  Input parameters:
+ *    major - device major number
+ *    minor - device minor number
+ *    pargb - pointer to close parameter block
+ *
+ *  Output parameters:
+ *    rval       - NULL_SUCCESSFUL
+ */
+
+rtems_device_driver null_close(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  return NULL_SUCCESSFUL;
+}
+
+
+/*  null_read
+ *
+ *  This routine is the null device driver read routine.
+ *
+ *  Input parameters:
+ *    major - device major number
+ *    minor - device minor number
+ *    pargp - pointer to read parameter block
+ *
+ *  Output parameters:
+ *    rval       - NULL_SUCCESSFUL
+ */
+
+rtems_device_driver null_read(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  return NULL_SUCCESSFUL;
+}
+
+
+/*  null_write
+ *
+ *  This routine is the null device driver write routine.
+ *
+ *  Input parameters:
+ *    major - device major number
+ *    minor - device minor number
+ *    pargp - pointer to write parameter block
+ *
+ *  Output parameters:
+ *    rval       - NULL_SUCCESSFUL
+ */
+
+rtems_device_driver null_write(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *) pargp ;
+  
+  rw_args->bytes_moved = rw_args->count ;
+  
+  return NULL_SUCCESSFUL;
+}
+
+
+/*  null_control
+ *
+ *  This routine is the null device driver control routine.
+ *
+ *  Input parameters:
+ *    major - device major number
+ *    minor - device minor number
+ *    pargp - pointer to cntrl parameter block
+ *
+ *  Output parameters:
+ *    rval       - NULL_SUCCESSFUL
+ */
+
+rtems_device_driver null_control(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  return NULL_SUCCESSFUL;
+}
diff --git a/c/src/libmisc/devnull/devnull.h b/c/src/libmisc/devnull/devnull.h
new file mode 100644
index 0000000000..7c0d7f1dcf
--- /dev/null
+++ b/c/src/libmisc/devnull/devnull.h
@@ -0,0 +1,71 @@
+/*  devnull.h
+ *
+ *  Null device driver, derived from rtems' stub driver.
+ *
+ *  Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
+ *
+ *  COPYRIGHT (c) 1989-2000.
+ *  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.
+ *
+ *  $Id$
+ */
+
+#ifndef __NULL_DRIVER_h
+#define __NULL_DRIVER_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DEVNULL_DRIVER_TABLE_ENTRY \
+  { null_initialize, null_open, null_close, null_read, \
+    null_write, null_control }
+
+#define NULL_SUCCESSFUL RTEMS_SUCCESSFUL
+
+rtems_device_driver null_initialize(
+  rtems_device_major_number,
+  rtems_device_minor_number,
+  void *
+);
+
+rtems_device_driver null_open(
+  rtems_device_major_number,
+  rtems_device_minor_number,
+  void *
+);
+
+rtems_device_driver null_close(
+  rtems_device_major_number,
+  rtems_device_minor_number,
+  void *
+);
+
+rtems_device_driver null_read(
+  rtems_device_major_number,
+  rtems_device_minor_number,
+  void *
+);
+
+rtems_device_driver null_write(
+  rtems_device_major_number,
+  rtems_device_minor_number,
+  void *
+);
+
+rtems_device_driver null_control(
+  rtems_device_major_number,
+  rtems_device_minor_number,
+  void *
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */