NSH dd command test with block devices

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1242 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 1 insertions, 133 deletions

diff --git a/nuttx/drivers/bch/bchlib_read.c b/nuttx/drivers/bch/bchlib_read.c
index 7af72ce8a..d2301d439 100644
--- a/nuttx/drivers/bch/bchlib_read.c
+++ b/nuttx/drivers/bch/bchlib_read.c
@@ -85,7 +85,7 @@
 
 ssize_t bchlib_read(FAR void *handle, FAR char *buffer, size_t offset, size_t len)
 {
-  FAR struct bchlib_s *bch;
+  FAR struct bchlib_s *bch = (FAR struct bchlib_s *)handle;
   size_t nsectors;
   size_t sector;
   uint16 sectoffset;
@@ -202,135 +202,3 @@ ssize_t bchlib_read(FAR void *handle, FAR char *buffer, size_t offset, size_t le
 
   return bytesread;
 }
-
-/****************************************************************************
- * Name: bchlib_write
- *
- * Description:
- *   Write to the block device set-up by bchlib_setup as if it were a character
- *   device.
- *
- ****************************************************************************/
-
-ssize_t bchlib_write(FAR void *handle, FAR const char *buffer, size_t offset, size_t len)
-{
-  FAR struct bchlib_s *bch;
-  size_t nsectors;
-  size_t sector;
-  uint16 sectoffset;
-  size_t nbytes;
-  size_t byteswritten;
-  int    ret;
-
-  /* Get rid of this special case right away */
-
-  if (len < 1)
-    {
-      return 0;
-    }
-
-  /* Convert the file position into a sector number an offset. */
-
-  sector     = offset / bch->sectsize;
-  sectoffset = offset - sector * bch->sectsize;
-
-  if (sector >= bch->nsectors)
-    {
-      return -EFBIG;
-    }
-
-  /* Write the initial partial sector */
-
-  byteswritten = 0;
-  if (sectoffset > 0)
-    {
-      /* Read the full sector into the sector buffer */
-
-      bchlib_readsector(bch, sector);
-
-      /* Copy the tail end of the sector from the user buffer */
-
-      if (sectoffset + len > bch->sectsize)
-        {
-          nbytes = bch->sectsize - sectoffset;
-        }
-      else 
-        {
-          nbytes = len;
-        }
-
-      memcpy(&bch->buffer[sectoffset], buffer, nbytes);
-      bch->dirty = TRUE;
-
-      /* Adjust pointers and counts */
-
-      sectoffset    = 0;
-      sector++;
-
-      if (sector >= bch->nsectors)
-        {
-          return nbytes;
-        }
-
-      byteswritten  = nbytes;
-      buffer       += nbytes;
-      len          -= nbytes;
-    }
-
-  /* Then write all of the full sectors following the partial sector */
-
-  if (len >= bch->sectsize )
-    {
-      nsectors = len / bch->sectsize;
-      if (sector + nsectors > bch->nsectors)
-        {
-          nsectors = bch->nsectors - sector;
-        }
-
-      /* Write the contiguous sectors */
-
-      ret = bch->inode->u.i_bops->write(bch->inode, bch->buffer, sector, nsectors);
-      if (ret < 0)
-        {
-          fdbg("Write failed: %d\n");
-          return ret;
-        }
-
-      /* Adjust pointers and counts */
-
-      sectoffset    = 0;
-      sector       += nsectors;
-
-      nbytes        = nsectors * bch->sectsize;
-      byteswritten += nbytes;
-
-      if (sector >= bch->nsectors)
-        {
-          return byteswritten;
-        }
-
-      buffer    += nbytes;
-      len       -= nbytes;
-    }
-
-  /* Then write any partial final sector */
-
-  if (len > 0)
-    {
-      /* Read the sector into the sector buffer */
-
-      bchlib_readsector(bch, sector);
-
-      /* Copy the head end of the sector from the user buffer */
-
-      memcpy(bch->buffer, buffer, len);
-      bch->dirty = TRUE;
-
-      /* Adjust counts */
-
-      byteswritten += len;
-    }
-
-  return byteswritten;
-}
-