From 7d81790ced345585b1e647ca9d0f6678e7062fa4 Mon Sep 17 00:00:00 2001 From: Dongsheng Yang Date: Sat, 31 Oct 2015 11:12:01 +0800 Subject: mtd-utils: Restructure the mtd-utils source. * There is no code modification in this commit, only moving * the files to proper place. The user tools looks a little messy as we place almost the all tools in the root directory of mtd-utils. To make it more clear, I propose to introduce the following structure for our source code. mtd-utils/ |-- lib |-- include |-- misc-utils |-- jffsX-utils |-- nand-utils |-- nor-utils |-- ubi-utils |-- ubifs-utils `-- tests Signed-off-by: Dongsheng Yang Signed-off-by: Brian Norris --- docfdisk.c | 318 ------------------------------------------------------------- 1 file changed, 318 deletions(-) delete mode 100644 docfdisk.c (limited to 'docfdisk.c') 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -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 [ [ [ [ 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; -} -- cgit v1.2.3