2002-02-28 Joel Sherrill <joel@OARcorp.com>

	* Submitted by Victor V. Vengerov <vvv@oktet.ru> and merged
	into the RTEMS source.
	* ChangeLog, Makefile.am, README, configure.ac, include/Makefile.am,
	include/rtems/bdbuf.h, include/rtems/blkdev.h, include/rtems/diskdevs.h,
	include/rtems/ramdisk.h, include/rtems/.cvsignore, include/.cvsignore,
	src/Makefile.am, src/bdbuf.c, src/blkdev.c, src/diskdevs.c,
	src/ramdisk.c, src/.cvsignore, .cvsignore: New files.

1 files changed, 52 insertions, 0 deletions

diff --git a/c/src/exec/libblock/include/rtems/ramdisk.h b/c/src/exec/libblock/include/rtems/ramdisk.h
new file mode 100644
index 0000000000..b9e8c238b8
--- /dev/null
+++ b/c/src/exec/libblock/include/rtems/ramdisk.h
@@ -0,0 +1,52 @@
+/* ramdisk.c -- RAM disk block device implementation
+ *
+ * Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
+ * Author: Victor V. Vengerov <vvv@oktet.ru>
+ *
+ * @(#) $Id$
+ */
+
+#ifndef __RTEMS_LIBBLOCK_RAMDISK_H__
+#define __RTEMS_LIBBLOCK_RAMDISK_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems.h>
+
+#include "rtems/blkdev.h"
+
+/* RAM disk configuration table entry */
+typedef struct rtems_ramdisk_config {
+    int   block_size; /* RAM disk block size */
+    int   block_num;  /* Number of blocks on this RAM disk */
+    void *location;   /* RAM disk permanent location (out of RTEMS controlled
+                         memory), or NULL if RAM disk memory should be
+                         allocated dynamically */
+} rtems_ramdisk_config;
+
+/* If application want to use RAM disk, it should specify configuration of
+ * available RAM disks.
+ * The following is definitions for RAM disk configuration table
+ */
+extern rtems_ramdisk_config rtems_ramdisk_configuration[];
+extern int rtems_ramdisk_configuration_size;
+
+/* ramdisk_initialize --
+ *     RAM disk driver initialization entry point.
+ */
+rtems_device_driver
+ramdisk_initialize(
+    rtems_device_major_number major,
+    rtems_device_minor_number minor,
+    void *arg);
+
+#define RAMDISK_DRIVER_TABLE_ENTRY \
+    { ramdisk_initialize, GENERIC_BLOCK_DEVICE_DRIVER_ENTRIES }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif