* Covardly copy the nanddump() function from the mtd-utils to fix dump functionality

- The new function works like the old rf_extract one, no parameters has
  changed.
- Now a complete dump/restore will be possible.
- Check for badblocks while copying data
- Shows information about the partition

* Better use of query_error_message() for debugging
This commit is contained in:
pancake committed 2007-06-02 02:23:58 +02:00
1 parent 1515b7c7c1
commit f299486ef9
9 files changed
+826 -36

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+1 -1
View File
@@ -2,7 +2,7 @@ VERSION=0.2
OBJ=main.o fiasco.o hexdump.o dump.o flash.o
OBJ+=hash.o fpid.o query.o pieces.o utils.o devices.o
BIN=0xFFFF
CFLAGS+=-DVERSION=\"${VERSION}\" -Wall -g
CFLAGS+=-DVERSION=\"${VERSION}\" -Wall -g -I .
all: ${OBJ}
${CC} ${LDFLAGS} -o ${BIN} ${OBJ} -lusb
+298 -19
View File
@@ -24,6 +24,13 @@
#include <stdlib.h>
#include <string.h>
/*
* Extracts a piece from an mtd device
* -----------------------------------
* This function is known to be buggy, It does not takes care about
* badblocks and oob data. It is replaced by nanddump(), but will
* probably be fixed in the future or it will die.
*/
int rf_extract(char *dev, off_t from, off_t to, char *file)
{
off_t i, blk = 0xfffff;
@@ -60,6 +67,272 @@ __rf_extract_exit:
return 1;
}
/*
* This function was covardly copied from nanddump.c @ mtd-utils-20060907
*/
#define _GNU_SOURCE
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <asm/types.h>
#include <mtd/mtd-user.h>
// configuration for nanddump //
int ignoreerrors = 1; // ignore errors
int pretty_print = 0; // print nice in ascii
int noecc = 0; // don't error correct
int omitoob = 1; // omit oob data
int omitbad = 1;
// configuration for nanddump //
int nanddump(char *mtddev, unsigned long start_addr, unsigned long length, char *dumpfile)
{
unsigned char readbuf[2048];
unsigned char oobbuf[64];
struct nand_oobinfo none_oobinfo = {
.useecc = MTD_NANDECC_OFF,
};
unsigned long ofs, end_addr = 0;
unsigned long long blockstart = 1;
int i, fd, ofd, bs, badblock = 0;
struct mtd_oob_buf oob = {0, 16, oobbuf};
mtd_info_t meminfo;
char pretty_buf[80];
int oobinfochanged = 0 ;
int badblocks = 1;
struct nand_oobinfo old_oobinfo;
struct mtd_ecc_stats stat1, stat2;
int eccstats = 0;
printf("\nExtracting %s from %s...\n", dumpfile, mtddev);
/* Open MTD device */
if ((fd = open(mtddev, O_RDONLY)) == -1) {
perror("open flash");
return 1;
}
/* Fill in MTD device capability structure */
if (ioctl(fd, MEMGETINFO, &meminfo) != 0) {
perror("MEMGETINFO");
close(fd);
return 1;
}
/* Make sure device page sizes are valid */
if (!(meminfo.oobsize == 64 && meminfo.writesize == 2048) &&
!(meminfo.oobsize == 16 && meminfo.writesize == 512) &&
!(meminfo.oobsize == 8 && meminfo.writesize == 256)) {
fprintf(stderr, "Unknown flash (not normal NAND)\n");
close(fd);
return 1;
}
/* Read the real oob length */
oob.length = meminfo.oobsize;
if (noecc) {
switch (ioctl(fd, MTDFILEMODE, (void *) MTD_MODE_RAW)) {
case -ENOTTY:
if (ioctl (fd, MEMGETOOBSEL, &old_oobinfo) != 0) {
perror ("MEMGETOOBSEL");
close (fd);
exit (1);
}
if (ioctl (fd, MEMSETOOBSEL, &none_oobinfo) != 0) {
perror ("MEMSETOOBSEL");
close (fd);
exit (1);
}
oobinfochanged = 1;
break;
case 0:
oobinfochanged = 2;
break;
default:
perror ("MTDFILEMODE");
close (fd);
return 1;
}
} else {
/* check if we can read ecc stats */
if (!ioctl(fd, ECCGETSTATS, &stat1)) {
eccstats = 1;
fprintf(stderr, "ECC failed: %d\n", stat1.failed);
fprintf(stderr, "ECC corrected: %d\n", stat1.corrected);
fprintf(stderr, "Number of bad blocks: %d\n", stat1.badblocks);
fprintf(stderr, "Number of bbt blocks: %d\n", stat1.bbtblocks);
} else
perror("No ECC status information available");
}
/* Open output file for writing. If file name is "-", write to standard
* output. */
if (!dumpfile) {
ofd = STDOUT_FILENO;
} else if ((ofd = open(dumpfile, O_WRONLY | O_TRUNC | O_CREAT, 0644))== -1) {
perror ("open outfile");
close(fd);
return 1;
}
/* Initialize start/end addresses and block size */
if (length)
end_addr = start_addr + length;
if (!length || end_addr > meminfo.size)
end_addr = meminfo.size;
bs = meminfo.writesize;
/* Print informative message */
fprintf(stderr, "Block size %u, page size %u, OOB size %u\n",
meminfo.erasesize, meminfo.writesize, meminfo.oobsize);
fprintf(stderr,
"Dumping data starting at 0x%08x and ending at 0x%08x...\n",
(unsigned int) start_addr, (unsigned int) end_addr);
/* Dump the flash contents */
for (ofs = start_addr; ofs < end_addr ; ofs+=bs) {
progressbar(ofs, end_addr);
// new eraseblock , check for bad block
if (blockstart != (ofs & (~meminfo.erasesize + 1))) {
blockstart = ofs & (~meminfo.erasesize + 1);
if ((badblock = ioctl(fd, MEMGETBADBLOCK, &blockstart)) < 0) {
perror("ioctl(MEMGETBADBLOCK)");
goto closeall;
}
}
if (badblock) {
if (omitbad)
continue;
memset (readbuf, 0xff, bs);
} else {
/* Read page data and exit on failure */
if (pread(fd, readbuf, bs, ofs) != bs) {
perror("pread");
goto closeall;
}
}
/* ECC stats available ? */
if (eccstats) {
if (ioctl(fd, ECCGETSTATS, &stat2)) {
perror("ioctl(ECCGETSTATS)");
goto closeall;
}
if (stat1.failed != stat2.failed)
fprintf(stderr, "ECC: %d uncorrectable bitflip(s)"
" at offset 0x%08lx\n",
stat2.failed - stat1.failed, ofs);
if (stat1.corrected != stat2.corrected)
fprintf(stderr, "ECC: %d corrected bitflip(s) at"
" offset 0x%08lx\n",
stat2.corrected - stat1.corrected, ofs);
stat1 = stat2;
}
/* Write out page data */
if (pretty_print) {
for (i = 0; i < bs; i += 16) {
sprintf(pretty_buf,
"0x%08x: %02x %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
(unsigned int) (ofs + i), readbuf[i],
readbuf[i+1], readbuf[i+2],
readbuf[i+3], readbuf[i+4],
readbuf[i+5], readbuf[i+6],
readbuf[i+7], readbuf[i+8],
readbuf[i+9], readbuf[i+10],
readbuf[i+11], readbuf[i+12],
readbuf[i+13], readbuf[i+14],
readbuf[i+15]);
write(ofd, pretty_buf, 60);
}
} else
write(ofd, readbuf, bs);
if (badblock) {
printf("Oops badblock %d at 0x%lx !\n", badblocks++, ofs);
memset (readbuf, 0xff, meminfo.oobsize);
} else {
/* Read OOB data and exit on failure */
oob.start = ofs;
if (ioctl(fd, MEMREADOOB, &oob) != 0) {
perror("ioctl(MEMREADOOB)");
goto closeall;
}
}
if (omitoob)
continue;
/* Write out OOB data */
if (pretty_print) {
if (meminfo.oobsize < 16) {
sprintf(pretty_buf, " OOB Data: %02x %02x %02x %02x %02x %02x "
"%02x %02x\n",
oobbuf[0], oobbuf[1], oobbuf[2],
oobbuf[3], oobbuf[4], oobbuf[5],
oobbuf[6], oobbuf[7]);
write(ofd, pretty_buf, 48);
continue;
}
for (i = 0; i < meminfo.oobsize; i += 16) {
sprintf(pretty_buf, " OOB Data: %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
oobbuf[i], oobbuf[i+1], oobbuf[i+2],
oobbuf[i+3], oobbuf[i+4], oobbuf[i+5],
oobbuf[i+6], oobbuf[i+7], oobbuf[i+8],
oobbuf[i+9], oobbuf[i+10], oobbuf[i+11],
oobbuf[i+12], oobbuf[i+13], oobbuf[i+14],
oobbuf[i+15]);
write(ofd, pretty_buf, 60);
}
} else
write(ofd, oobbuf, meminfo.oobsize);
}
/* reset oobinfo */
if (oobinfochanged == 1) {
if (ioctl (fd, MEMSETOOBSEL, &old_oobinfo) != 0) {
perror ("MEMSETOOBSEL");
close(fd);
close(ofd);
return 1;
}
}
/* Close the output file and MTD device */
close(fd);
close(ofd);
/* Exit happy */
return 0;
closeall:
/* The new mode change is per file descriptor ! */
if (oobinfochanged == 1) {
if (ioctl (fd, MEMSETOOBSEL, &old_oobinfo) != 0) {
perror ("MEMSETOOBSEL");
}
}
close(fd);
close(ofd);
return 1;
}
int rf_strip(char *file)
{
FILE *fd = fopen(file, "rw");
@@ -74,18 +347,19 @@ int rf_strip(char *file)
printf("Stripping padding from %s... ", file);
fflush(stdout);
fseek(fd, 0, SEEK_END);
do {
fseek(fd, -4096, SEEK_CUR);
ret = fread(buf, 1, 4096, fd);
fseek(fd, -4096, SEEK_CUR);
for(ret--;ret>0;ret--)
if (buf[ret]!=0xff) {
fseek(fd, ret+1, SEEK_CUR);
eof = ftell(fd);
goto __done;
}
} while(1);
if (ftell(fd)>4096) {
do {
fseek(fd, -4096, SEEK_CUR);
ret = fread(buf, 1, 4096, fd);
fseek(fd, -4096, SEEK_CUR);
for(ret--;ret>0;ret--)
if (buf[ret]!=0xff) {
fseek(fd, ret+1, SEEK_CUR);
eof = ftell(fd);
goto __done;
}
} while(1);
}
__done:
fclose(fd);
@@ -114,21 +388,26 @@ int is_n800()
return n800;
}
int reverse_extract_pieces(char *dir)
{
char reply;
chdir(dir);
rf_extract("/dev/mtd0", is_n800()?0x200:0, 0x003600, "xloader.bin");
rf_extract("/dev/mtd0", 0x004000, 0x01ffff, "secondary.bin");
rf_extract("/dev/mtd2", 0x000800, 0x200000, "zImage");
rf_extract("/dev/mtd3", 0x000000, 0x1D00000, "initfs.jffs2");
nanddump("/dev/mtd0", is_n800()?0x200:0, 0x003600, "xloader.bin");
//rf_extract("/dev/mtd0", is_n800()?0x200:0, 0x003600, "xloader.bin");
nanddump("/dev/mtd0", 0x004000, 0x01ffff, "secondary.bin");
//rf_extract("/dev/mtd0", 0x004000, 0x01ffff, "secondary.bin");
nanddump("/dev/mtd2", 0x000800, 0x200000, "zImage");
//rf_extract("/dev/mtd2", 0x000800, 0x200000, "zImage");
nanddump("/dev/mtd3", 0x000000, 0x1D00000, "initfs.jffs2");
//rf_extract("/dev/mtd3", 0x000000, 0x1D00000, "initfs.jffs2");
printf("\nWARNING: the rootfs extraction on n800 is known to be buggy! feedback is welcome.\n\n");
printf("Extract rootfs? (y/N): "); fflush(stdout);
read(0, &reply, 1);
if (reply=='y'||reply=='Y')
rf_extract("/dev/mtd4", 0x000000, 0x6000000, "rootfs.jffs2");
if (reply=='y'||reply=='Y') {
nanddump("/dev/mtd4", 0x000000, 0x6000000, "rootfs.jffs2");
//rf_extract("/dev/mtd4", 0x000000, 0x6000000, "rootfs.jffs2");
}
else printf("*** Ignoring rootfs\n");
rf_strip("xloader.bin");
rf_strip("secondary.bin");
+23 -16
View File
@@ -20,6 +20,7 @@
#include "main.h"
#include "hash.h"
#include "hexdump.h"
#include <usb.h>
#include <stdio.h>
#include <string.h>
@@ -32,6 +33,26 @@ void check_nolo_order_failed()
exit(1);
}
void query_error_message()
{
/* query error message */
int len = 0;
char nolomsg[2048];
memset(nolomsg, '\0', 2048);
usb_control_msg(dev, 192, 5, 0, 0, nolomsg, 2048, 2000);
nolomsg[2047] = '\0';
printf("\nNOLO says:\n");
if (nolomsg[0] == '\0') {
printf(" (.. silence ..)\n");
} else {
dump_bytes((unsigned char *)nolomsg, 128);
do {
printf(" - %s\n", nolomsg+len);
len+=strlen(nolomsg+len)+1;
} while(nolomsg[len]!='\0');
}
}
void check_nolo_order()
{
int i, xlo = 0;
@@ -100,6 +121,7 @@ void flash_image(char *filename, char *piece, char *version)
//dump_bytes(fquery, 27+vlen);
if (usb_control_msg(dev, CMD_WRITE, request, 0, 0, (char *)fquery, 27+vlen, 2000) <0) {
query_error_message();
perror("flash_image.header");
exit(1);
}
@@ -124,22 +146,7 @@ void flash_image(char *filename, char *piece, char *version)
printf("WARNING: Oops wrong read %d vs %d \n", bread, bsize);
bread = usb_bulk_write(dev, 2, buf, bsize, 5000);
if (bread == 64) {
/* query error message */
int len = 0;
char nolomsg[2048];
memset(nolomsg, '\0', 2048);
usb_control_msg(dev, 192, 5, 0, 0, nolomsg, 2048, 2000);
nolomsg[2047] = '\0';
printf("\nNOLO says:\n");
if (nolomsg[0] == '\0') {
printf(" (.. silence ..)\n");
} else {
dump_bytes(nolomsg, 128);
do {
printf(" - %s\n", nolomsg+len);
len+=strlen(nolomsg+len)+1;
} while(nolomsg[len]!='\0');
}
query_error_message();
fclose(fd);
return;
}
+76
View File
@@ -0,0 +1,76 @@
/*
* $Id: ftl.h,v 1.7 2005/11/07 11:14:54 gleixner Exp $
*
* Derived from (and probably identical to):
* ftl.h 1.7 1999/10/25 20:23:17
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The initial developer of the original code is David A. Hinds
* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License version 2 (the "GPL"), in
* which case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use
* your version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice and
* other provisions required by the GPL. If you do not delete the
* provisions above, a recipient may use your version of this file
* under either the MPL or the GPL.
*/
#ifndef __MTD_FTL_USER_H__
#define __MTD_FTL_USER_H__
typedef struct erase_unit_header_t {
u_int8_t LinkTargetTuple[5];
u_int8_t DataOrgTuple[10];
u_int8_t NumTransferUnits;
u_int32_t EraseCount;
u_int16_t LogicalEUN;
u_int8_t BlockSize;
u_int8_t EraseUnitSize;
u_int16_t FirstPhysicalEUN;
u_int16_t NumEraseUnits;
u_int32_t FormattedSize;
u_int32_t FirstVMAddress;
u_int16_t NumVMPages;
u_int8_t Flags;
u_int8_t Code;
u_int32_t SerialNumber;
u_int32_t AltEUHOffset;
u_int32_t BAMOffset;
u_int8_t Reserved[12];
u_int8_t EndTuple[2];
} erase_unit_header_t;
/* Flags in erase_unit_header_t */
#define HIDDEN_AREA 0x01
#define REVERSE_POLARITY 0x02
#define DOUBLE_BAI 0x04
/* Definitions for block allocation information */
#define BLOCK_FREE(b) ((b) == 0xffffffff)
#define BLOCK_DELETED(b) (((b) == 0) || ((b) == 0xfffffffe))
#define BLOCK_TYPE(b) ((b) & 0x7f)
#define BLOCK_ADDRESS(b) ((b) & ~0x7f)
#define BLOCK_NUMBER(b) ((b) >> 9)
#define BLOCK_CONTROL 0x30
#define BLOCK_DATA 0x40
#define BLOCK_REPLACEMENT 0x60
#define BLOCK_BAD 0x70
#endif /* __MTD_FTL_USER_H__ */
+91
View File
@@ -0,0 +1,91 @@
/*
* $Id: inftl-user.h,v 1.2 2005/11/07 11:14:56 gleixner Exp $
*
* Parts of INFTL headers shared with userspace
*
*/
#ifndef __MTD_INFTL_USER_H__
#define __MTD_INFTL_USER_H__
#define OSAK_VERSION 0x5120
#define PERCENTUSED 98
#define SECTORSIZE 512
/* Block Control Information */
struct inftl_bci {
uint8_t ECCsig[6];
uint8_t Status;
uint8_t Status1;
} __attribute__((packed));
struct inftl_unithead1 {
uint16_t virtualUnitNo;
uint16_t prevUnitNo;
uint8_t ANAC;
uint8_t NACs;
uint8_t parityPerField;
uint8_t discarded;
} __attribute__((packed));
struct inftl_unithead2 {
uint8_t parityPerField;
uint8_t ANAC;
uint16_t prevUnitNo;
uint16_t virtualUnitNo;
uint8_t NACs;
uint8_t discarded;
} __attribute__((packed));
struct inftl_unittail {
uint8_t Reserved[4];
uint16_t EraseMark;
uint16_t EraseMark1;
} __attribute__((packed));
union inftl_uci {
struct inftl_unithead1 a;
struct inftl_unithead2 b;
struct inftl_unittail c;
};
struct inftl_oob {
struct inftl_bci b;
union inftl_uci u;
};
/* INFTL Media Header */
struct INFTLPartition {
__u32 virtualUnits;
__u32 firstUnit;
__u32 lastUnit;
__u32 flags;
__u32 spareUnits;
__u32 Reserved0;
__u32 Reserved1;
} __attribute__((packed));
struct INFTLMediaHeader {
char bootRecordID[8];
__u32 NoOfBootImageBlocks;
__u32 NoOfBinaryPartitions;
__u32 NoOfBDTLPartitions;
__u32 BlockMultiplierBits;
__u32 FormatFlags;
__u32 OsakVersion;
__u32 PercentUsed;
struct INFTLPartition Partitions[4];
} __attribute__((packed));
/* Partition flag types */
#define INFTL_BINARY 0x20000000
#define INFTL_BDTL 0x40000000
#define INFTL_LAST 0x80000000
#endif /* __MTD_INFTL_USER_H__ */
+82
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@@ -0,0 +1,82 @@
/*
* $Id: jffs2-user.h,v 1.1 2004/05/05 11:57:54 dwmw2 Exp $
*
* JFFS2 definitions for use in user space only
*/
#ifndef __JFFS2_USER_H__
#define __JFFS2_USER_H__
/* This file is blessed for inclusion by userspace */
#include <linux/jffs2.h>
#include <endian.h>
#include <byteswap.h>
#undef cpu_to_je16
#undef cpu_to_je32
#undef cpu_to_jemode
#undef je16_to_cpu
#undef je32_to_cpu
#undef jemode_to_cpu
extern int target_endian;
#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
#define cpu_to_je16(x) ((jint16_t){t16(x)})
#define cpu_to_je32(x) ((jint32_t){t32(x)})
#define cpu_to_jemode(x) ((jmode_t){t32(x)})
#define je16_to_cpu(x) (t16((x).v16))
#define je32_to_cpu(x) (t32((x).v32))
#define jemode_to_cpu(x) (t32((x).m))
#define le16_to_cpu(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_16(x))
#define le32_to_cpu(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_32(x))
#define cpu_to_le16(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_16(x))
#define cpu_to_le32(x) (__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_32(x))
/* XATTR/POSIX-ACL related definition */
/* Namespaces copied from xattr.h and posix_acl_xattr.h */
#define XATTR_USER_PREFIX "user."
#define XATTR_USER_PREFIX_LEN (sizeof (XATTR_USER_PREFIX) - 1)
#define XATTR_SECURITY_PREFIX "security."
#define XATTR_SECURITY_PREFIX_LEN (sizeof (XATTR_SECURITY_PREFIX) - 1)
#define POSIX_ACL_XATTR_ACCESS "system.posix_acl_access"
#define POSIX_ACL_XATTR_ACCESS_LEN (sizeof (POSIX_ACL_XATTR_ACCESS) - 1)
#define POSIX_ACL_XATTR_DEFAULT "system.posix_acl_default"
#define POSIX_ACL_XATTR_DEFAULT_LEN (sizeof (POSIX_ACL_XATTR_DEFAULT) - 1)
#define XATTR_TRUSTED_PREFIX "trusted."
#define XATTR_TRUSTED_PREFIX_LEN (sizeof (XATTR_TRUSTED_PREFIX) - 1)
struct jffs2_acl_entry {
jint16_t e_tag;
jint16_t e_perm;
jint32_t e_id;
};
struct jffs2_acl_entry_short {
jint16_t e_tag;
jint16_t e_perm;
};
struct jffs2_acl_header {
jint32_t a_version;
};
/* copied from include/linux/posix_acl_xattr.h */
#define POSIX_ACL_XATTR_VERSION 0x0002
struct posix_acl_xattr_entry {
uint16_t e_tag;
uint16_t e_perm;
uint32_t e_id;
};
struct posix_acl_xattr_header {
uint32_t a_version;
struct posix_acl_xattr_entry a_entries[0];
};
#endif /* __JFFS2_USER_H__ */
+158
View File
@@ -0,0 +1,158 @@
/*
* $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__
#ifndef __KERNEL__ /* Urgh. The whole point of splitting this out into
separate files was to avoid #ifdef __KERNEL__ */
#define __user
#endif
struct erase_info_user {
uint32_t start;
uint32_t length;
};
struct mtd_oob_buf {
uint32_t start;
uint32_t length;
unsigned char __user *ptr;
};
#define MTD_ABSENT 0
#define MTD_NORFLASH 3
#define MTD_NANDFLASH 4
#define MTD_DATAFLASH 6
#define MTD_GENERIC_TYPE 7
#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 */
// Some common devices / combinations of capabilities
#define MTD_CAP_ROM 0
#define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
#define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
#define MTD_CAP_NANDFLASH (MTD_WRITEABLE)
// Types of automatic ECC/Checksum available
#define MTD_ECC_NONE 0 // No automatic ECC available
#define MTD_ECC_RS_DiskOnChip 1 // Automatic ECC on DiskOnChip
#define MTD_ECC_SW 2 // SW ECC for Toshiba & Samsung devices
/* ECC byte placement */
#define MTD_NANDECC_OFF 0 // Switch off ECC (Not recommended)
#define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode)
#define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme
#define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read)
#define MTD_NANDECC_AUTOPL_USR 4 // Use the given autoplacement scheme rather than using the default
/* OTP mode selection */
#define MTD_OTP_OFF 0
#define MTD_OTP_FACTORY 1
#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)
uint32_t ecctype;
uint32_t eccsize;
};
struct region_info_user {
uint32_t 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;
};
struct otp_info {
uint32_t start;
uint32_t length;
uint32_t locked;
};
#define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
#define MEMERASE _IOW('M', 2, struct erase_info_user)
#define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
#define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
#define MEMLOCK _IOW('M', 5, struct erase_info_user)
#define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
#define MEMGETREGIONCOUNT _IOR('M', 7, int)
#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 OTPSELECT _IOR('M', 13, int)
#define OTPGETREGIONCOUNT _IOW('M', 14, int)
#define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
#define OTPLOCK _IOR('M', 16, 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)
/*
* 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];
};
struct nand_oobfree {
uint32_t offset;
uint32_t length;
};
#define MTD_MAX_OOBFREE_ENTRIES 8
/*
* ECC layout control structure. Exported to userspace for
* diagnosis and to allow creation of raw images
*/
struct nand_ecclayout {
uint32_t eccbytes;
uint32_t eccpos[64];
uint32_t oobavail;
struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
};
/**
* struct mtd_ecc_stats - error correction status
*
* @corrected: number of corrected bits
* @failed: number of uncorrectable errors
* @badblocks: number of bad blocks in this partition
* @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;
};
/*
* Read/write file modes for access to MTD
*/
enum mtd_file_modes {
MTD_MODE_NORMAL = MTD_OTP_OFF,
MTD_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
MTD_MODE_OTP_USER = MTD_OTP_USER,
MTD_MODE_RAW,
};
#endif /* __MTD_ABI_H__ */
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/*
* $Id: mtd-user.h,v 1.2 2004/05/05 14:44:57 dwmw2 Exp $
*
* MTD ABI header for use by user space only.
*/
#ifndef __MTD_USER_H__
#define __MTD_USER_H__
#include <stdint.h>
/* This file is blessed for inclusion by userspace */
#include <mtd/mtd-abi.h>
typedef struct mtd_info_user mtd_info_t;
typedef struct erase_info_user erase_info_t;
typedef struct region_info_user region_info_t;
typedef struct nand_oobinfo nand_oobinfo_t;
typedef struct nand_ecclayout nand_ecclayout_t;
#endif /* __MTD_USER_H__ */
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/*
* $Id: nftl-user.h,v 1.2 2005/11/07 11:14:56 gleixner Exp $
*
* Parts of NFTL headers shared with userspace
*
*/
#ifndef __MTD_NFTL_USER_H__
#define __MTD_NFTL_USER_H__
/* Block Control Information */
struct nftl_bci {
unsigned char ECCSig[6];
uint8_t Status;
uint8_t Status1;
}__attribute__((packed));
/* Unit Control Information */
struct nftl_uci0 {
uint16_t VirtUnitNum;
uint16_t ReplUnitNum;
uint16_t SpareVirtUnitNum;
uint16_t SpareReplUnitNum;
} __attribute__((packed));
struct nftl_uci1 {
uint32_t WearInfo;
uint16_t EraseMark;
uint16_t EraseMark1;
} __attribute__((packed));
struct nftl_uci2 {
uint16_t FoldMark;
uint16_t FoldMark1;
uint32_t unused;
} __attribute__((packed));
union nftl_uci {
struct nftl_uci0 a;
struct nftl_uci1 b;
struct nftl_uci2 c;
};
struct nftl_oob {
struct nftl_bci b;
union nftl_uci u;
};
/* NFTL Media Header */
struct NFTLMediaHeader {
char DataOrgID[6];
uint16_t NumEraseUnits;
uint16_t FirstPhysicalEUN;
uint32_t FormattedSize;
unsigned char UnitSizeFactor;
} __attribute__((packed));
#define MAX_ERASE_ZONES (8192 - 512)
#define ERASE_MARK 0x3c69
#define SECTOR_FREE 0xff
#define SECTOR_USED 0x55
#define SECTOR_IGNORE 0x11
#define SECTOR_DELETED 0x00
#define FOLD_MARK_IN_PROGRESS 0x5555
#define ZONE_GOOD 0xff
#define ZONE_BAD_ORIGINAL 0
#define ZONE_BAD_MARKED 7
#endif /* __MTD_NFTL_USER_H__ */