Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/fs/reiserfs/dev.c b/qemu/roms/u-boot/fs/reiserfs/dev.c
new file mode 100644
index 000000000..68255458d
--- /dev/null
+++ b/qemu/roms/u-boot/fs/reiserfs/dev.c
@@ -0,0 +1,98 @@
+/*
+ *  (C) Copyright 2003 - 2004
+ *  Sysgo AG, <www.elinos.com>, Pavel Bartusek <pba@sysgo.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+
+#include <common.h>
+#include <config.h>
+#include <reiserfs.h>
+
+#include "reiserfs_private.h"
+
+static block_dev_desc_t *reiserfs_block_dev_desc;
+static disk_partition_t *part_info;
+
+
+void reiserfs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info)
+{
+	reiserfs_block_dev_desc = rbdd;
+	part_info = info;
+}
+
+
+int reiserfs_devread (int sector, int byte_offset, int byte_len, char *buf)
+{
+	char sec_buf[SECTOR_SIZE];
+	unsigned block_len;
+/*
+	unsigned len = byte_len;
+	u8 *start = buf;
+*/
+	/*
+	*  Check partition boundaries
+	*/
+	if (sector < 0
+	    || ((sector + ((byte_offset + byte_len - 1) >> SECTOR_BITS))
+	    >= part_info->size)) {
+/*		errnum = ERR_OUTSIDE_PART; */
+		printf (" ** reiserfs_devread() read outside partition\n");
+		return 0;
+	}
+
+	/*
+	 *  Get the read to the beginning of a partition.
+	 */
+	sector += byte_offset >> SECTOR_BITS;
+	byte_offset &= SECTOR_SIZE - 1;
+
+#if defined(DEBUG)
+	printf (" <%d, %d, %d> ", sector, byte_offset, byte_len);
+#endif
+
+
+	if (reiserfs_block_dev_desc == NULL)
+		return 0;
+
+
+	if (byte_offset != 0) {
+		/* read first part which isn't aligned with start of sector */
+		if (reiserfs_block_dev_desc->block_read(reiserfs_block_dev_desc->dev,
+		    part_info->start + sector, 1,
+		    (unsigned long *)sec_buf) != 1) {
+			printf (" ** reiserfs_devread() read error\n");
+			return 0;
+		}
+		memcpy(buf, sec_buf+byte_offset, min(SECTOR_SIZE-byte_offset, byte_len));
+		buf+=min(SECTOR_SIZE-byte_offset, byte_len);
+		byte_len-=min(SECTOR_SIZE-byte_offset, byte_len);
+		sector++;
+	}
+
+	/* read sector aligned part */
+	block_len = byte_len & ~(SECTOR_SIZE-1);
+	if (reiserfs_block_dev_desc->block_read(reiserfs_block_dev_desc->dev,
+	    part_info->start + sector, block_len/SECTOR_SIZE,
+	    (unsigned long *)buf) != block_len/SECTOR_SIZE) {
+		printf (" ** reiserfs_devread() read error - block\n");
+		return 0;
+	}
+	buf+=block_len;
+	byte_len-=block_len;
+	sector+= block_len/SECTOR_SIZE;
+
+	if ( byte_len != 0 ) {
+		/* read rest of data which are not in whole sector */
+		if (reiserfs_block_dev_desc->block_read(reiserfs_block_dev_desc->dev,
+		    part_info->start + sector, 1,
+		    (unsigned long *)sec_buf) != 1) {
+			printf (" ** reiserfs_devread() read error - last part\n");
+			return 0;
+		}
+		memcpy(buf, sec_buf, byte_len);
+	}
+
+	return 1;
+}