mtd_probe: add autodetection for xD cards

commit 2599cabd36770785a13bf884049d649d385fd80c
Author: Maxim Levitsky <maximlevitsky@gmail.com>
Date:   Fri Jun 18 02:08:48 2010 +0300

Add autodetection for xD/smartmedia cards
This can easily be extended for other types of FTL

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/extras/mtd_probe/mtd_probe.h b/extras/mtd_probe/mtd_probe.h
new file mode 100644
index 0000000000..845a7a13d9
--- /dev/null
+++ b/extras/mtd_probe/mtd_probe.h
@@ -0,0 +1,51 @@
+/*
+ * mtd_probe.h
+ * This file is part of mtd_probe
+ *
+ * Copyright (C) 2010 - Maxim Levitsky
+ *
+ * mtd_probe is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mtd_probe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with mtd_probe; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, 
+ * Boston, MA  02110-1301  USA
+ */
+#include <mtd/mtd-user.h>
+
+/* Full oob structure as written on the flash */
+struct sm_oob {
+	uint32_t reserved;
+	uint8_t data_status;
+	uint8_t block_status;
+	uint8_t lba_copy1[2];
+	uint8_t ecc2[3];
+	uint8_t lba_copy2[2];
+	uint8_t ecc1[3];
+} __attribute__((packed));
+
+
+/* one sector is always 512 bytes, but it can consist of two nand pages */
+#define SM_SECTOR_SIZE		512
+
+/* oob area is also 16 bytes, but might be from two pages */
+#define SM_OOB_SIZE		16
+
+/* This is maximum zone size, and all devices that have more that one zone
+   have this size */
+#define SM_MAX_ZONE_SIZE 	1024
+
+/* support for small page nand */
+#define SM_SMALL_PAGE 		256
+#define SM_SMALL_OOB_SIZE	8
+
+
+void probe_smart_media(int mtd_fd, mtd_info_t *info);