From 5e88538f97eb5cf2b0c14345af4ea937e627ffc3 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Mon, 5 Mar 2012 10:02:52 +0100
Subject: libblock: Split file

---
 cpukit/libblock/src/ramdisk-register.c | 80 ++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 cpukit/libblock/src/ramdisk-register.c

(limited to 'cpukit/libblock/src/ramdisk-register.c')

diff --git a/cpukit/libblock/src/ramdisk-register.c b/cpukit/libblock/src/ramdisk-register.c
new file mode 100644
index 0000000000..c720a2c33b
--- /dev/null
+++ b/cpukit/libblock/src/ramdisk-register.c
@@ -0,0 +1,80 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_ramdisk
+ *
+ * @brief RAM disk block device implementation.
+ */
+
+/*
+ * Copyright (c) 2009-2012 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems.h>
+#include <rtems/ramdisk.h>
+
+const rtems_driver_address_table ramdisk_ops = {
+  .initialization_entry = NULL,
+  RTEMS_GENERIC_BLOCK_DEVICE_DRIVER_ENTRIES
+};
+
+rtems_status_code ramdisk_register(
+  uint32_t block_size,
+  rtems_blkdev_bnum block_count,
+  bool trace,
+  const char *disk,
+  dev_t *dev_ptr
+)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  rtems_device_major_number major = 0;
+  ramdisk *rd = NULL;
+  dev_t dev = 0;
+
+  sc = rtems_io_register_driver(0, &ramdisk_ops, &major);
+  if (sc != RTEMS_SUCCESSFUL) {
+    return RTEMS_UNSATISFIED;
+  }
+
+  rd = ramdisk_allocate(NULL, block_size, block_count, trace);
+  if (rd == NULL) {
+    rtems_io_unregister_driver(major);
+
+    return RTEMS_UNSATISFIED;
+  }
+
+  dev = rtems_filesystem_make_dev_t(major, 0);
+
+  sc = rtems_disk_create_phys(
+    dev,
+    block_size,
+    block_count,
+    ramdisk_ioctl,
+    rd,
+    disk
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    ramdisk_free(rd);
+    rtems_io_unregister_driver(major);
+
+    return RTEMS_UNSATISFIED;
+  }
+
+  *dev_ptr = dev;
+
+  return RTEMS_SUCCESSFUL;
+}
-- 
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