mtd-utils: move libmtd source files to lib/ subdirectory

deleted file mode 100644
index ee3145b..0000000
@@ -1,19 +0,0 @@
-#ifndef CRC32_H
-#define CRC32_H
-
-#include <stdint.h>
-
-extern const uint32_t crc32_table[256];
-
-/* Return a 32-bit CRC of the contents of the buffer. */
-
-	static inline uint32_t
-crc32(uint32_t val, const void *ss, int len)
-{
-	const unsigned char *s = ss;
-	while (--len >= 0)
-		val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
-	return val;
-}
-
-#endif

similarity index 100%
rename from ubi-utils/src/common.h
rename to include/common.h

similarity index 100%
rename from mkfs.ubifs/crc32.h
rename to include/crc32.h

similarity index 100%
rename from ubi-utils/include/libmtd.h
rename to include/libmtd.h

similarity index 100%
rename from crc32.c
rename to lib/crc32.c

similarity index 100%
rename from fec.c
rename to lib/fec.c

similarity index 100%
rename from ubi-utils/src/libmtd.c
rename to lib/libmtd.c

similarity index 100%
rename from ubi-utils/src/libmtd_int.h
rename to lib/libmtd_int.h

similarity index 100%
rename from ubi-utils/src/libmtd_legacy.c
rename to lib/libmtd_legacy.c

95 lines not on this page · raw message

95 lines not on this page · raw message

deleted file mode 100644
index c001fcf..0000000
@@ -1,17 +0,0 @@
-#ifndef __CRC32_H__
-#define __CRC32_H__
-
-#include <stdint.h>
-
-extern const uint32_t crc32_table[256];
-
-/* Returns a 32-bit CRC of the contents of the buffer */
-static inline uint32_t crc32(uint32_t val, const void *ss, int len)
-{
-	const unsigned char *s = ss;
-	while (--len >= 0)
-		val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
-	return val;
-}
-
-#endif

index d5893b9..c1fbd52 100644
@@ -8,7 +8,7 @@
 #include <sys/stat.h>
 
 #include "mcast_image.h"
-#include "crc32.h"
+#include <crc32.h>
 
 #define ERASE_SIZE 131072
 //#define PKT_SIZE 1400

index a22fc49..e6f8d50 100644
@@ -35,7 +35,7 @@
 #include <getopt.h>
 #include <sys/ioctl.h>
 #include <sys/mount.h>
-#include "crc32.h"
+#include <crc32.h>
 
 #include <mtd/mtd-user.h>
 #include <mtd/jffs2-user.h>

index 86fc841..4b51177 100644
@@ -10,7 +10,7 @@
 extern const uint32_t crc32_table[256];
 
 /* Return a 32-bit CRC of the contents of the buffer. */
-static inline uint32_t ubifs_crc32(uint32_t val, const void *ss, int len)
+static inline uint32_t crc32(uint32_t val, const void *ss, int len)
 {
 	const unsigned char *s = ss;
 

index 2802682..cd8b6fa 100644
@@ -31,7 +31,7 @@
 #include <endian.h>
 #include <byteswap.h>
 #include <getopt.h>
-#include "crc32.h"
+#include <crc32.h>
 #include "summary.h"
 
 #define PROGRAM "jffs2dump"

index 64cafb6..2c78fd5 100644
@@ -69,10 +69,10 @@
 #include <sys/acl.h>
 #endif
 #include <byteswap.h>
-#define crc32 __complete_crap
+#define crc32 __zlib_crc32
 #include <zlib.h>
 #undef crc32
-#include "crc32.h"
+#include <crc32.h>
 #include "rbtree.h"
 
 /* Do not use the weird XPG version of basename */

index e378c5d..7f084c5 100644
@@ -24,10 +24,12 @@
 #include <stdio.h>
 #include <stdint.h>
 #include <string.h>
-#include <zlib.h>
 #include <lzo/lzo1x.h>
 #include <linux/types.h>
 
+#define crc32 __zlib_crc32
+#include <zlib.h>
+
 #include "compr.h"
 #include "ubifs-media.h"
 #include "mkfs.ubifs.h"

index e4b4e3c..95b20b0 100644
@@ -21,6 +21,7 @@
  */
 
 #include "mkfs.ubifs.h"
+#include <crc32.h>
 
 #define PROGRAM_VERSION "1.3"
 

@@ -752,7 +753,7 @@ static void prepare_node(void *node, int len)
 	ch->group_type = UBIFS_NO_NODE_GROUP;
 	ch->sqnum = cpu_to_le64(++c->max_sqnum);
 	ch->padding[0] = ch->padding[1] = 0;
-	crc = ubifs_crc32(UBIFS_CRC32_INIT, node + 8, len - 8);
+	crc = crc32(UBIFS_CRC32_INIT, node + 8, len - 8);
 	ch->crc = cpu_to_le32(crc);
 }
 

@@ -822,7 +823,7 @@ static int do_pad(void *buf, int len)
 		pad_len -= UBIFS_PAD_NODE_SZ;
 		pad_node->pad_len = cpu_to_le32(pad_len);
 
-		crc = ubifs_crc32(UBIFS_CRC32_INIT, buf + 8,
+		crc = crc32(UBIFS_CRC32_INIT, buf + 8,
 				  UBIFS_PAD_NODE_SZ - 8);
 		ch->crc = cpu_to_le32(crc);
 

index 16b34c7..c00dce0 100644
@@ -49,7 +49,6 @@
 #include <sys/file.h>
 
 #include "libubi.h"
-#include "crc32.h"
 #include "defs.h"
 #include "crc16.h"
 #include "ubifs-media.h"

index d65aa2a..2be511a 100644
@@ -16,7 +16,7 @@
 #include <netinet/in.h>
 #include <sys/ioctl.h>
 #include <sys/time.h>
-#include "crc32.h"
+#include <crc32.h>
 #include "mtd/mtd-user.h"
 #include "mcast_image.h"
 

index adb4869..5aafa35 100644
@@ -16,7 +16,7 @@
 #include <sys/mman.h>
 #include <netinet/in.h>
 #include <sys/time.h>
-#include "crc32.h"
+#include <crc32.h>
 #include "mcast_image.h"
 
 int tx_rate = 80000;

index 6bb7168..966e110 100644
@@ -44,7 +44,7 @@
 #include <endian.h>
 #include <byteswap.h>
 #include <getopt.h>
-#include "crc32.h"
+#include <crc32.h>
 #include "summary.h"
 
 #define PAD(x) (((x)+3)&~3)

index 5a2ea78..85f3d7f 100644
@@ -32,8 +32,8 @@
 #include <mtd/mtd-user.h>
 #include <libmtd.h>
 #include <libscan.h>
+#include <crc32.h>
 #include "common.h"
-#include "crc32.h"
 
 #define PROGRAM_NAME "libscan"
 

index 8f060da..62792d0 100644
@@ -32,7 +32,7 @@
 #include <mtd/ubi-media.h>
 #include <mtd_swab.h>
 #include <libubigen.h>
-#include "crc32.h"
+#include <crc32.h>
 #include "common.h"
 
 #define PROGRAM_NAME "libubigen"

index d39af10..2dd69e1 100644
@@ -28,8 +28,8 @@
 #include <getopt.h>
 #include <unistd.h>
 #include <mtd/ubi-media.h>
+#include <crc32.h>
 
-#include "crc32.h"
 #include "common.h"
 
 #define BUFSIZE 4096

index 8487fd5..f0a87c4 100644
@@ -41,7 +41,7 @@
 #include <libscan.h>
 #include <libubigen.h>
 #include <mtd_swab.h>
-#include "crc32.h"
+#include <crc32.h>
 #include "common.h"
 
 #define PROGRAM_VERSION "1.5"

index 86defe1..c6954ed 100644
@@ -1,23 +1,35 @@
 /*
- * $Id: mtd-abi.h,v 1.13 2005/11/07 11:14:56 gleixner Exp $
- *
  * Portions of MTD ABI definition which are shared by kernel and user space
  */
 
 #ifndef __MTD_ABI_H__
 #define __MTD_ABI_H__
 
+#include <linux/types.h>
+
 struct erase_info_user {
-	uint32_t start;
-	uint32_t length;
+	__u32 start;
+	__u32 length;
+};
+
+struct erase_info_user64 {
+	__u64 start;
+	__u64 length;
 };
 
 struct mtd_oob_buf {
-	uint32_t start;
-	uint32_t length;
+	__u32 start;
+	__u32 length;
 	unsigned char *ptr;
 };
 
+struct mtd_oob_buf64 {
+	__u64 start;
+	__u32 pad;
+	__u32 length;
+	__u64 usr_ptr;
+};
+
 #define MTD_ABSENT		0
 #define MTD_RAM			1
 #define MTD_ROM			2

@@ -29,7 +41,7 @@ struct mtd_oob_buf {
 #define MTD_WRITEABLE		0x400	/* Device is writeable */
 #define MTD_BIT_WRITEABLE	0x800	/* Single bits can be flipped */
 #define MTD_NO_ERASE		0x1000	/* No erase necessary */
-#define MTD_STUPID_LOCK		0x2000	/* Always locked after reset */
+#define MTD_POWERUP_LOCK	0x2000	/* Always locked after reset */
 
 // Some common devices / combinations of capabilities
 #define MTD_CAP_ROM		0

@@ -50,30 +62,30 @@ struct mtd_oob_buf {
 #define MTD_OTP_USER		2
 
 struct mtd_info_user {
-	uint8_t type;
-	uint32_t flags;
-	uint32_t size;	 // Total size of the MTD
-	uint32_t erasesize;
-	uint32_t writesize;
-	uint32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+	__u8 type;
+	__u32 flags;
+	__u32 size;	 // Total size of the MTD
+	__u32 erasesize;
+	__u32 writesize;
+	__u32 oobsize;   // Amount of OOB data per block (e.g. 16)
 	/* The below two fields are obsolete and broken, do not use them
 	 * (TODO: remove at some point) */
-	uint32_t ecctype;
-	uint32_t eccsize;
+	__u32 ecctype;
+	__u32 eccsize;
 };
 
 struct region_info_user {
-	uint32_t offset;		/* At which this region starts,
+	__u32 offset;		/* At which this region starts,
 					 * from the beginning of the MTD */
-	uint32_t erasesize;		/* For this region */
-	uint32_t numblocks;		/* Number of blocks in this region */
-	uint32_t regionindex;
+	__u32 erasesize;		/* For this region */
+	__u32 numblocks;		/* Number of blocks in this region */
+	__u32 regionindex;
 };
 
 struct otp_info {
-	uint32_t start;
-	uint32_t length;
-	uint32_t locked;
+	__u32 start;
+	__u32 length;
+	__u32 locked;
 };
 
 #define MEMGETINFO		_IOR('M', 1, struct mtd_info_user)

@@ -86,8 +98,8 @@ struct otp_info {
 #define MEMGETREGIONINFO	_IOWR('M', 8, struct region_info_user)
 #define MEMSETOOBSEL		_IOW('M', 9, struct nand_oobinfo)
 #define MEMGETOOBSEL		_IOR('M', 10, struct nand_oobinfo)
-#define MEMGETBADBLOCK		_IOW('M', 11, loff_t)
-#define MEMSETBADBLOCK		_IOW('M', 12, loff_t)
+#define MEMGETBADBLOCK		_IOW('M', 11, __kernel_loff_t)
+#define MEMSETBADBLOCK		_IOW('M', 12, __kernel_loff_t)
 #define OTPSELECT		_IOR('M', 13, int)
 #define OTPGETREGIONCOUNT	_IOW('M', 14, int)
 #define OTPGETREGIONINFO	_IOW('M', 15, struct otp_info)

@@ -95,21 +107,24 @@ struct otp_info {
 #define ECCGETLAYOUT		_IOR('M', 17, struct nand_ecclayout)
 #define ECCGETSTATS		_IOR('M', 18, struct mtd_ecc_stats)
 #define MTDFILEMODE		_IO('M', 19)
+#define MEMERASE64		_IOW('M', 20, struct erase_info_user64)
+#define MEMWRITEOOB64		_IOWR('M', 21, struct mtd_oob_buf64)
+#define MEMREADOOB64		_IOWR('M', 22, struct mtd_oob_buf64)
 
 /*
  * Obsolete legacy interface. Keep it in order not to break userspace
  * interfaces
  */
 struct nand_oobinfo {
-	uint32_t useecc;
-	uint32_t eccbytes;
-	uint32_t oobfree[8][2];
-	uint32_t eccpos[32];
+	__u32 useecc;
+	__u32 eccbytes;
+	__u32 oobfree[8][2];
+	__u32 eccpos[32];
 };
 
 struct nand_oobfree {
-	uint32_t offset;
-	uint32_t length;
+	__u32 offset;
+	__u32 length;
 };
 
 #define MTD_MAX_OOBFREE_ENTRIES	8

@@ -118,9 +133,9 @@ struct nand_oobfree {
  * diagnosis and to allow creation of raw images
  */
 struct nand_ecclayout {
-	uint32_t eccbytes;
-	uint32_t eccpos[64];
-	uint32_t oobavail;
+	__u32 eccbytes;
+	__u32 eccpos[64];
+	__u32 oobavail;
 	struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
 };
 

@@ -133,10 +148,10 @@ struct nand_ecclayout {
  * @bbtblocks:	number of blocks reserved for bad block tables
  */
 struct mtd_ecc_stats {
-	uint32_t corrected;
-	uint32_t failed;
-	uint32_t badblocks;
-	uint32_t bbtblocks;
+	__u32 corrected;
+	__u32 failed;
+	__u32 badblocks;
+	__u32 bbtblocks;
 };
 
 /*

index 49a4567..4934699 100644
@@ -301,7 +301,7 @@ int showinfo (int fd)
 			{ "MTD_WRITEABLE", MTD_WRITEABLE },
 			{ "MTD_BIT_WRITEABLE", MTD_BIT_WRITEABLE },
 			{ "MTD_NO_ERASE", MTD_NO_ERASE },
-			{ "MTD_STUPID_LOCK", MTD_STUPID_LOCK },
+			{ "MTD_POWERUP_LOCK", MTD_POWERUP_LOCK },
 			{ NULL, -1 }
 		};
 		for (i = 0; flags[i].name != NULL; i++)

index 0aea966..292d8c3 100644
@@ -66,6 +66,7 @@ struct mtd_info
  * @region_cnt: count of additional erase regions
  * @writable: zero if the device is read-only
  * @bb_allowed: non-zero if the MTD device may have bad eraseblocks
+ * @legacy_ioctls: non-zero if the kernel lacks MEMERASE64, MEM*OOB64
  */
 struct mtd_dev_info
 {

@@ -84,6 +85,7 @@ struct mtd_dev_info
 	int region_cnt;
 	unsigned int writable:1;
 	unsigned int bb_allowed:1;
+	unsigned int legacy_ioctls:1;
 };
 
 /**

@@ -146,7 +148,37 @@ int mtd_get_dev_info1(libmtd_t desc, int mtd_num, struct mtd_dev_info *mtd);
  * This function erases eraseblock @eb of MTD device described by @fd. Returns
  * %0 in case of success and %-1 in case of failure.
  */
-int mtd_erase(const struct mtd_dev_info *mtd, int fd, int eb);
+int mtd_erase(struct mtd_dev_info *mtd, int fd, int eb);
+
+/**
+ * mtd_read_oob - read OOB bytes
+ * @mtd: MTD device description object
+ * @fd: MTD device node file descriptor
+ * @start: page-aligned start address
+ * @length: number of OOB bytes to read
+ * @data: read buffer
+ *
+ * This function reads @length OOB bytes starting from address @start on
+ * MTD device described by @fd. Returns %0 in case of success and %-1 in
+ * case of failure.
+ */
+int mtd_read_oob(struct mtd_dev_info *mtd, int fd, uint64_t start,
+	uint64_t length, void *data);
+
+/**
+ * mtd_write_oob - write OOB bytes
+ * @mtd: MTD device description object
+ * @fd: MTD device node file descriptor
+ * @start: page-aligned start address
+ * @length: number of OOB bytes to write
+ * @data: write buffer
+ *
+ * This function writes @length OOB bytes starting from address @start on
+ * MTD device described by @fd. Returns %0 in case of success and %-1 in
+ * case of failure.
+ */
+int mtd_write_oob(struct mtd_dev_info *mtd, int fd, uint64_t start,
+	uint64_t length, void *data);
 
 /**
  * mtd_torture - torture an eraseblock.

@@ -157,7 +189,7 @@ int mtd_erase(const struct mtd_dev_info *mtd, int fd, int eb);
  * This function tortures eraseblock @eb. Returns %0 in case of success and %-1
  * in case of failure.
  */
-int mtd_torture(const struct mtd_dev_info *mtd, int fd, int eb);
+int mtd_torture(struct mtd_dev_info *mtd, int fd, int eb);
 
 /**
  * mtd_is_bad - check if eraseblock is bad.

103 lines not on this page · raw message

index 0aea966..2bf9859 100644
@@ -139,6 +139,7 @@ int mtd_get_dev_info1(libmtd_t desc, int mtd_num, struct mtd_dev_info *mtd);
 
 /**
  * mtd_erase - erase an eraseblock.
+ * @desc: MTD library descriptor
  * @mtd: MTD device description object
  * @fd: MTD device node file descriptor
  * @eb: eraseblock to erase

@@ -146,10 +147,11 @@ int mtd_get_dev_info1(libmtd_t desc, int mtd_num, struct mtd_dev_info *mtd);
  * This function erases eraseblock @eb of MTD device described by @fd. Returns
  * %0 in case of success and %-1 in case of failure.
  */
-int mtd_erase(const struct mtd_dev_info *mtd, int fd, int eb);
+int mtd_erase(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb);
 
 /**
  * mtd_torture - torture an eraseblock.
+ * @desc: MTD library descriptor
  * @mtd: MTD device description object
  * @fd: MTD device node file descriptor
  * @eb: eraseblock to torture

@@ -157,7 +159,7 @@ int mtd_erase(const struct mtd_dev_info *mtd, int fd, int eb);
  * This function tortures eraseblock @eb. Returns %0 in case of success and %-1
  * in case of failure.
  */
-int mtd_torture(const struct mtd_dev_info *mtd, int fd, int eb);
+int mtd_torture(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb);
 
 /**
  * mtd_is_bad - check if eraseblock is bad.

85 lines not on this page · raw message

index 7de4b42..bb48d35 100644
@@ -43,6 +43,10 @@ extern "C" {
 #define MTD_REGION_CNT   "numeraseregions"
 #define MTD_FLAGS        "flags"
 
+#define OFFS64_IOCTLS_UNKNOWN       0
+#define OFFS64_IOCTLS_NOT_SUPPORTED 1
+#define OFFS64_IOCTLS_SUPPORTED     2
+
 /**
  * libmtd - MTD library description data structure.
  * @sysfs_mtd: MTD directory in sysfs

@@ -58,6 +62,19 @@ extern "C" {
  * @mtd_region_cnt: count of additional erase regions file pattern
  * @mtd_flags: MTD device flags file pattern
  * @sysfs_supported: non-zero if sysfs is supported by MTD
+ * @offs64_ioctls: %OFFS64_IOCTLS_SUPPORTED if 64-bit %MEMERASE64,
+ *                 %MEMREADOOB64, %MEMWRITEOOB64 MTD device ioctls are
+ *                 supported, %OFFS64_IOCTLS_NOT_SUPPORTED if not, and
+ *                 %OFFS64_IOCTLS_UNKNOWN if it is not known yet;
+ *
+ *  Note, we cannot find out whether 64-bit ioctls are supported by MTD when we
+ *  are initializing the library, because this requires an MTD device node.
+ *  Indeed, we have to actually call the ioctl and check for %ENOTTY to find
+ *  out whether it is supported or not.
+ *
+ *  Thus, we leave %offs64_ioctls uninitialized in 'libmtd_open()', and
+ *  initialize it later, when corresponding libmtd function is used, and when
+ *  we actually have a device node and can invoke an ioctl command on it.
  */
 struct libmtd
 {

@@ -74,6 +91,7 @@ struct libmtd
 	char *mtd_region_cnt;
 	char *mtd_flags;
 	unsigned int sysfs_supported:1;
+	unsigned int offs64_ioctls:2;
 };
 
 int legacy_libmtd_open(void);

index 6052a35..4e27e4f 100644
@@ -441,8 +441,8 @@ static int mark_bad(const struct mtd_dev_info *mtd, struct ubi_scan_info *si, in
 	return consecutive_bad_check(eb);
 }
 
-static int flash_image(const struct mtd_dev_info *mtd, const struct ubigen_info *ui,
-		       struct ubi_scan_info *si)
+static int flash_image(libmtd_t libmtd, const struct mtd_dev_info *mtd,
+		       const struct ubigen_info *ui, struct ubi_scan_info *si)
 {
 	int fd, img_ebs, eb, written_ebs = 0, divisor;
 	off_t st_size;

@@ -488,7 +488,7 @@ static int flash_image(const struct mtd_dev_info *mtd, const struct ubigen_info
 			fflush(stdout);
 		}
 
-		err = mtd_erase(mtd, args.node_fd, eb);
+		err = mtd_erase(libmtd, mtd, args.node_fd, eb);
 		if (err) {
 			if (!args.quiet)
 				printf("\n");

@@ -543,7 +543,7 @@ static int flash_image(const struct mtd_dev_info *mtd, const struct ubigen_info
 			if (errno != EIO)
 				goto out_close;
 
-			err = mtd_torture(mtd, args.node_fd, eb);
+			err = mtd_torture(libmtd, mtd, args.node_fd, eb);
 			if (err) {
 				if (mark_bad(mtd, si, eb))
 					goto out_close;

@@ -564,8 +564,9 @@ out_close:
 	return -1;
 }
 
-static int format(const struct mtd_dev_info *mtd, const struct ubigen_info *ui,
-		  struct ubi_scan_info *si, int start_eb, int novtbl)
+static int format(libmtd_t libmtd, const struct mtd_dev_info *mtd,
+		  const struct ubigen_info *ui, struct ubi_scan_info *si,
+		  int start_eb, int novtbl)
 {
 	int eb, err, write_size;
 	struct ubi_ec_hdr *hdr;

@@ -606,7 +607,7 @@ static int format(const struct mtd_dev_info *mtd, const struct ubigen_info *ui,
 			fflush(stdout);
 		}
 
-		err = mtd_erase(mtd, args.node_fd, eb);
+		err = mtd_erase(libmtd, mtd, args.node_fd, eb);
 		if (err) {
 			if (!args.quiet)
 				printf("\n");

@@ -652,7 +653,7 @@ static int format(const struct mtd_dev_info *mtd, const struct ubigen_info *ui,
 				goto out_free;
 			}
 
-			err = mtd_torture(mtd, args.node_fd, eb);
+			err = mtd_torture(libmtd, mtd, args.node_fd, eb);
 			if (err) {
 				if (mark_bad(mtd, si, eb))
 					goto out_free;

@@ -922,15 +923,15 @@ int main(int argc, char * const argv[])
 	}
 
 	if (args.image) {
-		err = flash_image(&mtd, &ui, si);
+		err = flash_image(libmtd, &mtd, &ui, si);
 		if (err < 0)
 			goto out_free;
 
-		err = format(&mtd, &ui, si, err, 1);
+		err = format(libmtd, &mtd, &ui, si, err, 1);
 		if (err)
 			goto out_free;
 	} else {
-		err = format(&mtd, &ui, si, 0, args.novtbl);
+		err = format(libmtd, &mtd, &ui, si, 0, args.novtbl);
 		if (err)
 			goto out_free;
 	}

index 2bf9859..afaba42 100644
@@ -216,6 +216,40 @@ int mtd_write(const struct mtd_dev_info *mtd, int fd, int eb, int offs,
 	      void *buf, int len);
 
 /**
+ * mtd_read_oob - read out-of-band area.
+ * @desc: MTD library descriptor
+ * @mtd: MTD device description object
+ * @fd: MTD device node file descriptor
+ * @start: page-aligned start address
+ * @length: number of OOB bytes to read
+ * @data: read buffer
+ *
+ * This function reads @length OOB bytes starting from address @start on
+ * MTD device described by @fd. The address is specified as page byte offset
+ * from the beginning of the MTD device. This function returns %0 in case of
+ * success and %-1 in case of failure.
+ */
+int mtd_read_oob(libmtd_t desc, const struct mtd_dev_info *mtd, int fd,
+		 uint64_t start, uint64_t length, void *data);
+
+/**
+ * mtd_write_oob - write out-of-band area.
+ * @desc: MTD library descriptor
+ * @mtd: MTD device description object
+ * @fd: MTD device node file descriptor
+ * @start: page-aligned start address
+ * @length: number of OOB bytes to write
+ * @data: write buffer
+ *
+ * This function writes @length OOB bytes starting from address @start on
+ * MTD device described by @fd. The address is specified as page byte offset
+ * from the beginning of the MTD device. Returns %0 in case of success and %-1
+ * in case of failure.
+ */
+int mtd_write_oob(libmtd_t desc, const struct mtd_dev_info *mtd, int fd,
+		  uint64_t start, uint64_t length, void *data);
+
+/**
  * mtd_write_img - write a file to MTD device.
  * @mtd: MTD device description object
  * @fd: MTD device node file descriptor

@@ -236,7 +270,7 @@ int mtd_write_img(const struct mtd_dev_info *mtd, int fd, int eb, int offs,
  * @node: the node to test
  *
  * This function tests whether @node is an MTD device node and returns %1 if it
- * is, and %-1 if it is not (errno is ENODEV in this case) or if an error
+ * is, and %-1 if it is not (errno is %ENODEV in this case) or if an error
  * occurred.
  */
 int mtd_probe_node(libmtd_t desc, const char *node);

100 lines not on this page · raw message

index e6f8d50..916a75a 100644
@@ -36,6 +36,7 @@
 #include <sys/ioctl.h>
 #include <sys/mount.h>
 #include <crc32.h>
+#include <libmtd.h>
 
 #include <mtd/mtd-user.h>
 #include <mtd/jffs2-user.h>

@@ -49,7 +50,7 @@ static int quiet;		/* true -- don't output progress */
 static int jffs2;		// format for jffs2 usage
 
 static void process_options (int argc, char *argv[]);
-void show_progress (mtd_info_t *meminfo, erase_info_t *erase);
+void show_progress (struct mtd_dev_info *mtd, uint64_t start);
 static void display_help (void);
 static void display_version (void);
 static struct jffs2_unknown_node cleanmarker;

@@ -57,26 +58,31 @@ int target_endian = __BYTE_ORDER;
 
 int main (int argc, char *argv[])
 {
-	mtd_info_t meminfo;
-	int fd, clmpos = 0, clmlen = 8;
-	erase_info_t erase;
+	libmtd_t mtd_desc;
+	struct mtd_dev_info mtd;
+	int fd, clmpos = 0, clmlen = 8, eb;
 	int isNAND, bbtest = 1;
+	uint64_t offset = 0;
 
 	process_options(argc, argv);
 
+	mtd_desc = libmtd_open();
+	if (mtd_desc == NULL) {
+		fprintf(stderr, "%s: can't initialize libmtd\n", exe_name);
+		return 1;
+	}
+
 	if ((fd = open(mtd_device, O_RDWR)) < 0) {
 		fprintf(stderr, "%s: %s: %s\n", exe_name, mtd_device, strerror(errno));
 		return 1;
 	}
 
-
-	if (ioctl(fd, MEMGETINFO, &meminfo) != 0) {
-		fprintf(stderr, "%s: %s: unable to get MTD device info\n", exe_name, mtd_device);
+	if (mtd_get_dev_info(mtd_desc, mtd_device, &mtd) < 0) {
+		fprintf(stderr, "%s: mtd_get_dev_info failed\n", exe_name);
 		return 1;
 	}
 
-	erase.length = meminfo.erasesize;
-	isNAND = meminfo.type == MTD_NANDFLASH ? 1 : 0;
+	isNAND = mtd.type == MTD_NANDFLASH ? 1 : 0;
 
 	if (jffs2) {
 		cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);

@@ -104,7 +110,7 @@ int main (int argc, char *argv[])
 					clmlen = 8;
 			} else {
 				/* Legacy mode */
-				switch (meminfo.oobsize) {
+				switch (mtd.oob_size) {
 					case 8:
 						clmpos = 6;
 						clmlen = 2;

@@ -124,13 +130,13 @@ int main (int argc, char *argv[])
 		cleanmarker.hdr_crc =  cpu_to_je32 (crc32 (0, &cleanmarker,  sizeof (struct jffs2_unknown_node) - 4));
 	}
 
-	for (erase.start = 0; erase.start < meminfo.size; erase.start += meminfo.erasesize) {
+	for (eb = 0; eb < (mtd.size / mtd.eb_size); eb++) {
+		offset = eb * mtd.eb_size;
 		if (bbtest) {
-			loff_t offset = erase.start;
-			int ret = ioctl(fd, MEMGETBADBLOCK, &offset);
+			int ret = mtd_is_bad(&mtd, fd, eb);
 			if (ret > 0) {
 				if (!quiet)
-					printf ("\nSkipping bad block at 0x%08x\n", erase.start);
+					printf ("\nSkipping bad block at 0x%08llx\n", (unsigned long long)offset);
 				continue;
 			} else if (ret < 0) {
 				if (errno == EOPNOTSUPP) {

@@ -147,9 +153,9 @@ int main (int argc, char *argv[])
 		}
 
 		if (!quiet)
-			show_progress(&meminfo, &erase);
+			show_progress(&mtd, offset);
 
-		if (ioctl(fd, MEMERASE, &erase) != 0) {
+		if (mtd_erase(&mtd, fd, eb) != 0) {
 			fprintf(stderr, "\n%s: %s: MTD Erase failure: %s\n", exe_name, mtd_device, strerror(errno));
 			continue;
 		}

@@ -160,16 +166,12 @@ int main (int argc, char *argv[])
 
 		/* write cleanmarker */
 		if (isNAND) {
-			struct mtd_oob_buf oob;
-			oob.ptr = (unsigned char *) &cleanmarker;
-			oob.start = erase.start + clmpos;
-			oob.length = clmlen;
-			if (ioctl (fd, MEMWRITEOOB, &oob) != 0) {
+			if (mtd_write_oob(&mtd, fd, offset + clmpos, clmlen, &cleanmarker) != 0) {
 				fprintf(stderr, "\n%s: %s: MTD writeoob failure: %s\n", exe_name, mtd_device, strerror(errno));
 				continue;
 			}
 		} else {
-			if (lseek (fd, erase.start, SEEK_SET) < 0) {
+			if (lseek (fd, (loff_t)offset, SEEK_SET) < 0) {
 				fprintf(stderr, "\n%s: %s: MTD lseek failure: %s\n", exe_name, mtd_device, strerror(errno));
 				continue;
 			}

@@ -179,10 +181,10 @@ int main (int argc, char *argv[])
 			}
 		}
 		if (!quiet)
-			printf (" Cleanmarker written at %x.", erase.start);
+			printf (" Cleanmarker written at %llx.", (unsigned long long)offset);
 	}
 	if (!quiet) {
-		show_progress(&meminfo, &erase);
+		show_progress(&mtd, offset);
 		printf("\n");
 	}
 

@@ -250,11 +252,11 @@ void process_options (int argc, char *argv[])
 	mtd_device = argv[optind];
 }
 
-void show_progress (mtd_info_t *meminfo, erase_info_t *erase)
+void show_progress (struct mtd_dev_info *mtd, uint64_t start)
 {
-	printf("\rErasing %d Kibyte @ %x -- %2llu %% complete.",
-		meminfo->erasesize / 1024, erase->start,
-		(unsigned long long) erase->start * 100 / meminfo->size);
+	printf("\rErasing %d Kibyte @ %llx -- %2llu %% complete.",
+		mtd->eb_size / 1024, (unsigned long long)start,
+		(unsigned long long) start * 100 / mtd->size);
 	fflush(stdout);
 }