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| -rw-r--r-- | mkfs.ffs2.c | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/mkfs.ffs2.c b/mkfs.ffs2.c deleted file mode 100644 index 36204dd..0000000 --- a/mkfs.ffs2.c +++ /dev/null @@ -1,239 +0,0 @@ -// Description -// $Id: mkfs.ffs2.c,v 1.5 2005/11/07 11:15:12 gleixner Exp $ -/* ###################################################################### - - Microsoft Flash File System 2 - - Information for the FFS2.0 was found in Microsoft's knowledge base, - http://msdn.microsoft.com/isapi/msdnlib.idc?theURL=/library/specs/S346A.HTM - Try searching for "Flash File System" if it has been moved - - This program creates an empty file system. - - ##################################################################### */ - -#include <unistd.h> -#include <stdlib.h> -#include <stdio.h> -#include <fcntl.h> -#include <time.h> -#include <sys/ioctl.h> -#include <sys/mount.h> - -#include <mtd/mtd-user.h" -#include <linux/ffs2_fs.h" - -static unsigned long BlockSize = 128*1024; -static int Fd; - -// Erase a single block -int EraseBlock(unsigned Number) -{ - unsigned char Blank[512]; - unsigned I; - - memset(Blank,0xFF,sizeof(Blank)); - - if (lseek(Fd,BlockSize*Number,SEEK_SET) != BlockSize*Number) - return -1; - - for (I = 0; I*sizeof(Blank) != BlockSize; I++) - { - if (write(Fd,Blank,sizeof(Blank)) != sizeof(Blank)) - return -1; - } - - return 0; -} - -int main (int argc,char * const argv[]) -{ - struct mtd_info meminfo; - unsigned Device; - unsigned int Opt; - unsigned I; - unsigned long Length; - unsigned long Spares = 1; - unsigned long Start = 0; - - // Process options - while ((Opt = getopt(argc,argv,"b:s:")) != EOF) - { - switch (Opt) - { - case 'b': - BlockSize = strtol(optarg, NULL, 0); - break; - - case 's': - Start = strtol(optarg, NULL, 0); - break; - - case '?': - return 16; - } - } - - // Find the device name - Device = optind; - for (;Device < argc && (argv[Device][0] == 0 || - argv[Device][0] == '-'); Device++); - if (Device >= argc) - { - fprintf(stderr,"You must specify a device\n"); - return 16; - } - - // Open and size the device - if ((Fd = open(argv[Device],O_RDWR)) < 0) - { - fprintf(stderr,"File open error\n"); - return 8; - } - if (ioctl(Fd,BLKGETSIZE,&Length) < 0) - { - Length = lseek(Fd,0,SEEK_END); - lseek(Fd,0,SEEK_SET); - } - else - Length *= 512; - - if ((Start + 1)*BlockSize > Length) - { - fprintf(stderr,"The flash is not large enough\n"); - } - - printf("Total size is %lu, %lu byte erase " - "blocks for %lu blocks with %lu spares.\n",Length,BlockSize, - Length/BlockSize,Spares); - if (Start != 0) - printf("Skiping the first %lu bytes\n",Start*BlockSize); - - if (ioctl(Fd,MEMGETINFO,&meminfo) == 0) - { - struct erase_info erase; - printf("Performing Flash Erase"); - fflush(stdout); - - erase.length = Length - Start*BlockSize; - erase.start = Start*BlockSize; - if (ioctl(Fd,MEMERASE,&erase) != 0) - { - perror("\nMTD Erase failure"); - close(Fd); - return 8; - } - printf(" done\n"); - } - else - { - for (I = Start; I <= Length/BlockSize; I++) - { - printf("Erase %u\r",I); - fflush(stdout); - if (EraseBlock(I) != 0) - { - perror(argv[Device]); - close(Fd); - return 8; - } - } - } - - for (I = 0; I != Length/BlockSize; I++) - { - struct ffs2_block block; - - // Write the block structure - memset(&block,0xFF,sizeof(block)); - block.EraseCount = 1; - block.BlockSeq = I; - block.BlockSeqChecksum = 0xFFFF ^ block.BlockSeq; - block.Status = (block.Status & (~FFS_STATE_MASK)) | FFS_STATE_READY; - - // Is Spare - if (I >= Length/BlockSize - Spares) - { - block.BlockSeq = 0xFFFF; - block.BlockSeqChecksum = 0xFFFF; - block.Status = (block.Status & (~FFS_STATE_MASK)) | FFS_STATE_SPARE; - } - - // Setup the boot record and the root record - if (I == 0) - { - struct ffs2_bootrecord boot; - struct ffs2_blockalloc alloc[2]; - unsigned char Tmp[300]; - struct ffs2_entry *root = (struct ffs2_entry *)Tmp; - - block.BootRecordPtr = 0; - block.Status = (block.Status & (~FFS_BOOTP_MASK)) | FFS_BOOTP_CURRENT; - - boot.Signature = 0xF1A5; - boot.SerialNumber = time(0); - boot.FFSWriteVersion = 0x200; - boot.FFSReadVersion = 0x200; - boot.TotalBlockCount = Length/BlockSize; - boot.SpareBlockCount = Spares; - boot.BlockLen = BlockSize; - boot.RootDirectoryPtr = 0x1; - boot.BootCodeLen = 0; - - memset(root,0xFF,sizeof(*root)); - root->Status = (root->Status & (~FFS_ENTRY_TYPEMASK)) | FFS_ENTRY_TYPEDIR; - root->NameLen = strlen("root"); - root->Time = (__u16)boot.SerialNumber; - root->Date = (__u16)(boot.SerialNumber >> 16); - root->VarStructLen = 0; - strcpy(root->Name,"root"); - - // Boot Block allocation structure - alloc[1].Status = (0xFF & (~FFS_ALLOC_SMASK)) | FFS_ALLOC_ALLOCATED; - alloc[1].Status &= 0xFF & (~FFS_ALLOC_EMASK); - alloc[1].Offset[0] = 0; - alloc[1].Offset[1] = 0; - alloc[1].Offset[2] = 0; - alloc[1].Len = FFS_SIZEOF_BOOT; - - // Root Dir allocation structure - alloc[0].Status = (0xFF & (~FFS_ALLOC_SMASK)) | FFS_ALLOC_ALLOCATED; - alloc[0].Offset[0] = FFS_SIZEOF_BOOT; - alloc[0].Offset[1] = 0; - alloc[0].Offset[2] = 0; - alloc[0].Len = FFS_SIZEOF_ENTRY + root->NameLen; - - // Write the two headers - if (lseek(Fd,BlockSize*(I+Start),SEEK_SET) < 0 || - write(Fd,&boot,FFS_SIZEOF_BOOT) != FFS_SIZEOF_BOOT || - write(Fd,root,FFS_SIZEOF_ENTRY + root->NameLen) != FFS_SIZEOF_ENTRY + root->NameLen) - { - perror("Failed writing headers"); - close(Fd); - return 8; - } - - // And the two allocation structures - if (lseek(Fd,BlockSize*(I+Start+1) - FFS_SIZEOF_BLOCK - sizeof(alloc), - SEEK_SET) <= 0 || - write(Fd,alloc,sizeof(alloc)) != sizeof(alloc)) - { - perror("Failed writing allocations"); - close(Fd); - return 8; - } - } - - if (lseek(Fd,BlockSize*(I+Start+1) - FFS_SIZEOF_BLOCK, - SEEK_SET) <= 0 || - write(Fd,&block,FFS_SIZEOF_BLOCK) != FFS_SIZEOF_BLOCK) - { - perror("Failed writing block"); - close(Fd); - return 8; - } - } - printf("\n"); - - return 0; -} |