ubi-utils: add libmtd

Just collection of functions to make it easier to work with MTD devices.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/ubi-utils/new-utils/include/libmtd.h b/ubi-utils/new-utils/include/libmtd.h
new file mode 100644
index 0000000..d3c6a63
--- /dev/null
+++ b/ubi-utils/new-utils/include/libmtd.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Author: Artem Bityutskiy
+ *
+ * MTD library.
+ */
+
+#ifndef __LIBMTD_H__
+#define __LIBMTD_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * struct mtd_info - information about an MTD device.
+ * @num: MTD device number
+ * @major: major number of corresponding character device
+ * @minor: minor number of corresponding character device
+ * @type: flash type (constants like %MTD_NANDFLASH defined in mtd-abi.h)
+ * @type_str: static R/O flash type string
+ * @size: device size in bytes
+ * @eb_cnt: count of eraseblocks
+ * @eb_size: eraseblock size
+ * @min_io_size: minimum input/output unit size
+ * @subpage_size: sub-page size (not set by 'mtd_get_info()'!!!)
+ * @rdonly: non-zero if the device is read-only
+ * @allows_bb: non-zero if the MTD device may have bad eraseblocks
+ * @fd: descriptor of the opened MTD character device node
+ */
+struct mtd_info
+{
+	int num;
+	int major;
+	int minor;
+	int type;
+	const char *type_str;
+	long long size;
+	int eb_cnt;
+	int eb_size;
+	int min_io_size;
+	int subpage_size;
+	unsigned int rdonly:1;
+	unsigned int allows_bb:1;
+	int fd;
+};
+
+int mtd_get_info(const char *node, struct mtd_info *mtd);
+int mtd_erase(const struct mtd_info *mtd, int eb);
+int mtd_is_bad(const struct mtd_info *mtd, int eb);
+int mtd_read(const struct mtd_info *mtd, int eb, int offs, void *buf, int len);
+int mtd_write(const struct mtd_info *mtd, int eb, int offs, void *buf, int len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LIBMTD_H__ */