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-rw-r--r--docfdisk.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/docfdisk.c b/docfdisk.c
deleted file mode 100644
index 9956de5..0000000
--- a/docfdisk.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * docfdisk.c: Modify INFTL partition tables
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#define PROGRAM_NAME "docfdisk"
-
-#define _XOPEN_SOURCE 500 /* for pread/pwrite */
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <time.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/mount.h>
-#include <errno.h>
-#include <string.h>
-
-#include <asm/types.h>
-#include <mtd/mtd-user.h>
-#include <mtd/inftl-user.h>
-#include <mtd_swab.h>
-
-unsigned char *buf;
-
-mtd_info_t meminfo;
-erase_info_t erase;
-int fd;
-struct INFTLMediaHeader *mh;
-
-#define MAXSCAN 10
-
-void show_header(int mhoffs) {
- int i, unitsize, numunits, bmbits, numpart;
- int start, end, num, nextunit;
- unsigned int flags;
- struct INFTLPartition *ip;
-
- bmbits = le32_to_cpu(mh->BlockMultiplierBits);
- printf(" bootRecordID = %s\n"
- " NoOfBootImageBlocks = %d\n"
- " NoOfBinaryPartitions = %d\n"
- " NoOfBDTLPartitions = %d\n"
- " BlockMultiplierBits = %d\n"
- " FormatFlags = %d\n"
- " OsakVersion = %d.%d.%d.%d\n"
- " PercentUsed = %d\n",
- mh->bootRecordID, le32_to_cpu(mh->NoOfBootImageBlocks),
- le32_to_cpu(mh->NoOfBinaryPartitions),
- le32_to_cpu(mh->NoOfBDTLPartitions),
- bmbits,
- le32_to_cpu(mh->FormatFlags),
- ((unsigned char *) &mh->OsakVersion)[0] & 0xf,
- ((unsigned char *) &mh->OsakVersion)[1] & 0xf,
- ((unsigned char *) &mh->OsakVersion)[2] & 0xf,
- ((unsigned char *) &mh->OsakVersion)[3] & 0xf,
- le32_to_cpu(mh->PercentUsed));
-
- numpart = le32_to_cpu(mh->NoOfBinaryPartitions) +
- le32_to_cpu(mh->NoOfBDTLPartitions);
- unitsize = meminfo.erasesize >> bmbits;
- numunits = meminfo.size / unitsize;
- nextunit = mhoffs / unitsize;
- nextunit++;
- printf("Unitsize is %d bytes. Device has %d units.\n",
- unitsize, numunits);
- if (numunits > 32768) {
- printf("WARNING: More than 32768 units! Unexpectedly small BlockMultiplierBits.\n");
- }
- if (bmbits && (numunits <= 16384)) {
- printf("NOTICE: Unexpectedly large BlockMultiplierBits.\n");
- }
- for (i = 0; i < 4; i++) {
- ip = &(mh->Partitions[i]);
- flags = le32_to_cpu(ip->flags);
- start = le32_to_cpu(ip->firstUnit);
- end = le32_to_cpu(ip->lastUnit);
- num = le32_to_cpu(ip->virtualUnits);
- if (start < nextunit) {
- printf("ERROR: Overlapping or misordered partitions!\n");
- }
- if (start > nextunit) {
- printf(" Unpartitioned space: %d bytes\n"
- " virtualUnits = %d\n"
- " firstUnit = %d\n"
- " lastUnit = %d\n",
- (start - nextunit) * unitsize, start - nextunit,
- nextunit, start - 1);
- }
- if (flags & INFTL_BINARY)
- printf(" Partition %d (BDK):", i+1);
- else
- printf(" Partition %d (BDTL):", i+1);
- printf(" %d bytes\n"
- " virtualUnits = %d\n"
- " firstUnit = %d\n"
- " lastUnit = %d\n"
- " flags = 0x%x\n"
- " spareUnits = %d\n",
- num * unitsize, num, start, end,
- le32_to_cpu(ip->flags), le32_to_cpu(ip->spareUnits));
- if (num > (1 + end - start)) {
- printf("ERROR: virtualUnits not consistent with first/lastUnit!\n");
- }
- end++;
- if (end > nextunit)
- nextunit = end;
- if (flags & INFTL_LAST)
- break;
- }
- if (i >= 4) {
- printf("Odd. Last partition was not marked with INFTL_LAST.\n");
- i--;
- }
- if ((i+1) != numpart) {
- printf("ERROR: Number of partitions != (NoOfBinaryPartitions + NoOfBDTLPartitions)\n");
- }
- if (nextunit > numunits) {
- printf("ERROR: Partitions appear to extend beyond end of device!\n");
- }
- if (nextunit < numunits) {
- printf(" Unpartitioned space: %d bytes\n"
- " virtualUnits = %d\n"
- " firstUnit = %d\n"
- " lastUnit = %d\n",
- (numunits - nextunit) * unitsize, numunits - nextunit,
- nextunit, numunits - 1);
- }
-}
-
-
-int main(int argc, char **argv)
-{
- int ret, i, mhblock, unitsize, block;
- unsigned int nblocks[4], npart;
- unsigned int totblocks;
- struct INFTLPartition *ip;
- unsigned char *oobbuf;
- struct mtd_oob_buf oob;
- char line[20];
- int mhoffs;
- struct INFTLMediaHeader *mh2;
-
- if (argc < 2) {
- printf(
- "Usage: %s <mtddevice> [<size1> [<size2> [<size3> [<size4]]]]\n"
- " Sizes are in device units (run with no sizes to show unitsize and current\n"
- " partitions). Last size = 0 means go to end of device.\n",
- PROGRAM_NAME);
- return 1;
- }
-
- npart = argc - 2;
- if (npart > 4) {
- printf("Max 4 partitions allowed.\n");
- return 1;
- }
-
- for (i = 0; i < npart; i++) {
- nblocks[i] = strtoul(argv[2+i], NULL, 0);
- if (i && !nblocks[i-1]) {
- printf("No sizes allowed after 0\n");
- return 1;
- }
- }
-
- // Open and size the device
- if ((fd = open(argv[1], O_RDWR)) < 0) {
- perror("Open flash device");
- return 1;
- }
-
- if (ioctl(fd, MEMGETINFO, &meminfo) != 0) {
- perror("ioctl(MEMGETINFO)");
- return 1;
- }
-
- printf("Device size is %d bytes. Erasesize is %d bytes.\n",
- meminfo.size, meminfo.erasesize);
-
- buf = malloc(meminfo.erasesize);
- oobbuf = malloc((meminfo.erasesize / meminfo.writesize) * meminfo.oobsize);
- if (!buf || !oobbuf) {
- printf("Can't malloc block buffer\n");
- return 1;
- }
- oob.length = meminfo.oobsize;
-
- mh = (struct INFTLMediaHeader *) buf;
-
- for (mhblock = 0; mhblock < MAXSCAN; mhblock++) {
- if ((ret = pread(fd, buf, meminfo.erasesize, mhblock * meminfo.erasesize)) < 0) {
- if (errno == EBADMSG) {
- printf("ECC error at eraseblock %d\n", mhblock);
- continue;
- }
- perror("Read eraseblock");
- return 1;
- }
- if (ret != meminfo.erasesize) {
- printf("Short read!\n");
- return 1;
- }
- if (!strcmp("BNAND", mh->bootRecordID)) break;
- }
- if (mhblock >= MAXSCAN) {
- printf("Unable to find INFTL Media Header\n");
- return 1;
- }
- printf("Found INFTL Media Header at block %d:\n", mhblock);
- mhoffs = mhblock * meminfo.erasesize;
-
- oob.ptr = oobbuf;
- oob.start = mhoffs;
- for (i = 0; i < meminfo.erasesize; i += meminfo.writesize) {
- if (ioctl(fd, MEMREADOOB, &oob)) {
- perror("ioctl(MEMREADOOB)");
- return 1;
- }
- oob.start += meminfo.writesize;
- oob.ptr += meminfo.oobsize;
- }
-
- show_header(mhoffs);
-
- if (!npart)
- return 0;
-
- printf("\n-------------------------------------------------------------------------\n");
-
- unitsize = meminfo.erasesize >> le32_to_cpu(mh->BlockMultiplierBits);
- totblocks = meminfo.size / unitsize;
- block = mhoffs / unitsize;
- block++;
-
- mh->NoOfBDTLPartitions = 0;
- mh->NoOfBinaryPartitions = npart;
-
- for (i = 0; i < npart; i++) {
- ip = &(mh->Partitions[i]);
- ip->firstUnit = cpu_to_le32(block);
- if (!nblocks[i])
- nblocks[i] = totblocks - block;
- ip->virtualUnits = cpu_to_le32(nblocks[i]);
- block += nblocks[i];
- ip->lastUnit = cpu_to_le32(block-1);
- ip->spareUnits = 0;
- ip->flags = cpu_to_le32(INFTL_BINARY);
- }
- if (block > totblocks) {
- printf("Requested partitions extend beyond end of device.\n");
- return 1;
- }
- ip->flags = cpu_to_le32(INFTL_BINARY | INFTL_LAST);
-
- /* update the spare as well */
- mh2 = (struct INFTLMediaHeader *) (buf + 4096);
- memcpy((void *) mh2, (void *) mh, sizeof(struct INFTLMediaHeader));
-
- printf("\nProposed new Media Header:\n");
- show_header(mhoffs);
-
- printf("\nReady to update device. Type 'yes' to proceed, anything else to abort: ");
- fgets(line, sizeof(line), stdin);
- if (strcmp("yes\n", line))
- return 0;
- printf("Updating MediaHeader...\n");
-
- erase.start = mhoffs;
- erase.length = meminfo.erasesize;
- if (ioctl(fd, MEMERASE, &erase)) {
- perror("ioctl(MEMERASE)");
- printf("Your MediaHeader may be hosed. UHOH!\n");
- return 1;
- }
-
- oob.ptr = oobbuf;
- oob.start = mhoffs;
- for (i = 0; i < meminfo.erasesize; i += meminfo.writesize) {
- memset(oob.ptr, 0xff, 6); // clear ECC.
- if (ioctl(fd, MEMWRITEOOB, &oob)) {
- perror("ioctl(MEMWRITEOOB)");
- printf("Your MediaHeader may be hosed. UHOH!\n");
- return 1;
- }
- if ((ret = pwrite(fd, buf, meminfo.writesize, oob.start)) < 0) {
- perror("Write page");
- printf("Your MediaHeader may be hosed. UHOH!\n");
- return 1;
- }
- if (ret != meminfo.writesize) {
- printf("Short write!\n");
- printf("Your MediaHeader may be hosed. UHOH!\n");
- return 1;
- }
-
- oob.start += meminfo.writesize;
- oob.ptr += meminfo.oobsize;
- buf += meminfo.writesize;
- }
-
- printf("Success. REBOOT or unload the diskonchip module to update partitions!\n");
- return 0;
-}
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