1 files changed, 113 insertions, 0 deletions
diff --git a/nuttx/drivers/mtd/flash_eraseall.c b/nuttx/drivers/mtd/flash_eraseall.c
new file mode 100755
index 000000000..7d42fe9d4
--- /dev/null
+++ b/nuttx/drivers/mtd/flash_eraseall.c
@@ -0,0 +1,113 @@
+/****************************************************************************
+ * drivers/mtd/flash_eraseall.c
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/fs.h>
+#include <nuttx/ioctl.h>
+#include <nuttx/mtd.h>
+
+/****************************************************************************
+ * Private Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: flash_eraseall
+ *
+ * Description:
+ *   Call a block driver with the MDIOC_BULKERASE ioctl command.  This will
+ *   cause the MTD driver to erase all of the flash.
+ *
+ ****************************************************************************/
+
+int flash_eraseall(FAR const char *driver)
+{
+  FAR struct inode *inode;
+  FAR const struct block_operations *ops;
+  int ret;
+
+  /* Open the block driver */
+
+  ret = open_blockdriver(driver ,0, &inode);
+  if (ret < 0)
+    {
+      fdbg("ERROR:  Failed to open '%s': %d\n", driver, ret);
+      return ret;
+    }
+
+  /* Get the block operations */
+
+  ops = inode->u.i_bops;
+
+  /* Invoke the block driver ioctl method */
+
+  ret = -EPERM;
+  if (ops->ioctl)
+    {
+      ret = ops->ioctl(inode, MTDIOC_BULKERASE, 0);
+    }
+
+  /* Close the block driver */
+
+  close_blockdriver(inode);
+  return ret;
+}