+++ /dev/null
-#
-# YAFFS file system configurations
-#
-
-config YAFFS_FS
- tristate "YAFFS2 file system support"
- default n
- depends on MTD
- select YAFFS_YAFFS1
- select YAFFS_YAFFS2
- help
- YAFFS2, or Yet Another Flash Filing System, is a filing system
- optimised for NAND Flash chips.
-
- To compile the YAFFS2 file system support as a module, choose M
- here: the module will be called yaffs2.
-
- If unsure, say N.
-
- Further information on YAFFS2 is available at
- <http://www.aleph1.co.uk/yaffs/>.
-
-config YAFFS_YAFFS1
- bool "512 byte / page devices"
- depends on YAFFS_FS
- default y
- help
- Enable YAFFS1 support -- yaffs for 512 byte / page devices
-
- Not needed for 2K-page devices.
-
- If unsure, say Y.
-
-config YAFFS_9BYTE_TAGS
- bool "Use older-style on-NAND data format with pageStatus byte"
- depends on YAFFS_YAFFS1
- default n
- help
-
- Older-style on-NAND data format has a "pageStatus" byte to record
- chunk/page state. This byte is zero when the page is discarded.
- Choose this option if you have existing on-NAND data using this
- format that you need to continue to support. New data written
- also uses the older-style format. Note: Use of this option
- generally requires that MTD's oob layout be adjusted to use the
- older-style format. See notes on tags formats and MTD versions
- in yaffs_mtdif1.c.
-
- If unsure, say N.
-
-config YAFFS_DOES_ECC
- bool "Lets Yaffs do its own ECC"
- depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS
- default n
- help
- This enables Yaffs to use its own ECC functions instead of using
- the ones from the generic MTD-NAND driver.
-
- If unsure, say N.
-
-config YAFFS_ECC_WRONG_ORDER
- bool "Use the same ecc byte order as Steven Hill's nand_ecc.c"
- depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS
- default n
- help
- This makes yaffs_ecc.c use the same ecc byte order as Steven
- Hill's nand_ecc.c. If not set, then you get the same ecc byte
- order as SmartMedia.
-
- If unsure, say N.
-
-config YAFFS_YAFFS2
- bool "2048 byte (or larger) / page devices"
- depends on YAFFS_FS
- default y
- help
- Enable YAFFS2 support -- yaffs for >= 2K bytes per page devices
-
- If unsure, say Y.
-
-config YAFFS_AUTO_YAFFS2
- bool "Autoselect yaffs2 format"
- depends on YAFFS_YAFFS2
- default y
- help
- Without this, you need to explicitely use yaffs2 as the file
- system type. With this, you can say "yaffs" and yaffs or yaffs2
- will be used depending on the device page size (yaffs on
- 512-byte page devices, yaffs2 on 2K page devices).
-
- If unsure, say Y.
-
-config YAFFS_DISABLE_LAZY_LOAD
- bool "Disable lazy loading"
- depends on YAFFS_YAFFS2
- default n
- help
- "Lazy loading" defers loading file details until they are
- required. This saves mount time, but makes the first look-up
- a bit longer.
-
- Lazy loading will only happen if enabled by this option being 'n'
- and if the appropriate tags are available, else yaffs2 will
- automatically fall back to immediate loading and do the right
- thing.
-
- Lazy laoding will be required by checkpointing.
-
- Setting this to 'y' will disable lazy loading.
-
- If unsure, say N.
-
-config YAFFS_CHECKPOINT_RESERVED_BLOCKS
- int "Reserved blocks for checkpointing"
- depends on YAFFS_YAFFS2
- default 10
- help
- Give the number of Blocks to reserve for checkpointing.
- Checkpointing saves the state at unmount so that mounting is
- much faster as a scan of all the flash to regenerate this state
- is not needed. These Blocks are reserved per partition, so if
- you have very small partitions the default (10) may be a mess
- for you. You can set this value to 0, but that does not mean
- checkpointing is disabled at all. There only won't be any
- specially reserved blocks for checkpointing, so if there is
- enough free space on the filesystem, it will be used for
- checkpointing.
-
- If unsure, leave at default (10), but don't wonder if there are
- always 2MB used on your large page device partition (10 x 2k
- pagesize). When using small partitions or when being very small
- on space, you probably want to set this to zero.
-
-config YAFFS_DISABLE_WIDE_TNODES
- bool "Turn off wide tnodes"
- depends on YAFFS_FS
- default n
- help
- Wide tnodes are only used for NAND arrays >=32MB for 512-byte
- page devices and >=128MB for 2k page devices. They use slightly
- more RAM but are faster since they eliminate chunk group
- searching.
-
- Setting this to 'y' will force tnode width to 16 bits and save
- memory but make large arrays slower.
-
- If unsure, say N.
-
-config YAFFS_ALWAYS_CHECK_CHUNK_ERASED
- bool "Force chunk erase check"
- depends on YAFFS_FS
- default n
- help
- Normally YAFFS only checks chunks before writing until an erased
- chunk is found. This helps to detect any partially written
- chunks that might have happened due to power loss.
-
- Enabling this forces on the test that chunks are erased in flash
- before writing to them. This takes more time but is potentially
- a bit more secure.
-
- Suggest setting Y during development and ironing out driver
- issues etc. Suggest setting to N if you want faster writing.
-
- If unsure, say Y.
-
-config YAFFS_SHORT_NAMES_IN_RAM
- bool "Cache short names in RAM"
- depends on YAFFS_FS
- default y
- help
- If this config is set, then short names are stored with the
- yaffs_Object. This costs an extra 16 bytes of RAM per object,
- but makes look-ups faster.
-
- If unsure, say Y.
+++ /dev/null
-# Main Makefile for YAFFS
-#
-#
-# YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-#
-# Copyright (C) 2002-2007 Aleph One Ltd.
-# for Toby Churchill Ltd and Brightstar Engineering
-#
-# Created by Charles Manning <charles@aleph1.co.uk>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-
-
-ifneq ($(KERNELRELEASE),)
- EXTRA_CFLAGS += -DYAFFS_OUT_OF_TREE
-
- obj-m := yaffs2.o
-
- yaffs2-objs := yaffs_mtdif.o yaffs_mtdif2.o
- yaffs2-objs += yaffs_mtdif1.o yaffs_packedtags1.o
- yaffs2-objs += yaffs_ecc.o yaffs_fs.o yaffs_guts.o
- yaffs2-objs += yaffs_packedtags2.o yaffs_qsort.o
- yaffs2-objs += yaffs_tagscompat.o yaffs_tagsvalidity.o
- yaffs2-objs += yaffs_checkptrw.o yaffs_nand.o
-
-else
- KERNELDIR ?= /lib/modules/$(shell uname -r)/build
- PWD := $(shell pwd)
-
-modules default:
- $(MAKE) -C $(KERNELDIR) M=$(PWD) modules
-
-mi modules_install:
- $(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install
-
-clean:
- $(MAKE) -C $(KERNELDIR) M=$(PWD) clean
-endif
+++ /dev/null
-#
-# Makefile for the linux YAFFS filesystem routines.
-#
-
-obj-$(CONFIG_YAFFS_FS) += yaffs.o
-
-yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o
-yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o
-yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o
-yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o
+++ /dev/null
-To build YAFFS in the Linux kernel tree you need to run the patch-ker.sh
-script from the yaffs source directory, giving your choice as to whether
-you wish to copy (c) or link (l) the code and the path to your kernel
-sources, e.g:
-
-./patch-ker.sh c /usr/src/linux
-
-This will copy the yaffs files into fs/yaffs2 and modify the Kconfig
-and Makefiles in the fs directory.
-
-./patch-ker.sh l /usr/src/linux
-
-This does the same as the above but makes symbolic links instead.
-
-After you've run the script, go back to your normal kernel making procedure
-and configure the yaffs settings you want.
-
-Prolems? Contact the yaffs mailing list:
-
-http://www.aleph1.co.uk/mailman/listinfo/yaffs
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
-* Test code for the "direct" interface.
-*/
-
-/* XXX U-BOOT XXX */
-#include <common.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include "yaffsfs.h"
-
-void dumpDir(const char *dname);
-
-char xx[600];
-
-void copy_in_a_file(char *yaffsName,char *inName)
-{
- int inh,outh;
- unsigned char buffer[100];
- int ni,no;
- inh = open(inName,O_RDONLY);
- outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
-
- while((ni = read(inh,buffer,100)) > 0)
- {
- no = yaffs_write(outh,buffer,ni);
- if(ni != no)
- {
- printf("problem writing yaffs file\n");
- }
-
- }
-
- yaffs_close(outh);
- close(inh);
-}
-
-void make_a_file(char *yaffsName,char bval,int sizeOfFile)
-{
- int outh;
- int i;
- unsigned char buffer[100];
-
- outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
-
- memset(buffer,bval,100);
-
- do{
- i = sizeOfFile;
- if(i > 100) i = 100;
- sizeOfFile -= i;
-
- yaffs_write(outh,buffer,i);
-
- } while (sizeOfFile > 0);
-
-
- yaffs_close(outh);
-
-}
-
-void make_pattern_file(char *fn,int size)
-{
- int outh;
- int marker;
- int i;
- outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
- yaffs_lseek(outh,size-1,SEEK_SET);
- yaffs_write(outh,"A",1);
-
- for(i = 0; i < size; i+=256)
- {
- marker = ~i;
- yaffs_lseek(outh,i,SEEK_SET);
- yaffs_write(outh,&marker,sizeof(marker));
- }
- yaffs_close(outh);
-
-}
-
-int check_pattern_file(char *fn)
-{
- int h;
- int marker;
- int i;
- int size;
- int ok = 1;
-
- h = yaffs_open(fn, O_RDWR,0);
- size = yaffs_lseek(h,0,SEEK_END);
-
- for(i = 0; i < size; i+=256)
- {
- yaffs_lseek(h,i,SEEK_SET);
- yaffs_read(h,&marker,sizeof(marker));
- ok = (marker == ~i);
- if(!ok)
- {
- printf("pattern check failed on file %s, size %d at position %d. Got %x instead of %x\n",
- fn,size,i,marker,~i);
- }
- }
- yaffs_close(h);
- return ok;
-}
-
-
-
-
-
-int dump_file_data(char *fn)
-{
- int h;
- int marker;
- int i = 0;
- int size;
- int ok = 1;
- unsigned char b;
-
- h = yaffs_open(fn, O_RDWR,0);
-
-
- printf("%s\n",fn);
- while(yaffs_read(h,&b,1)> 0)
- {
- printf("%02x",b);
- i++;
- if(i > 32)
- {
- printf("\n");
- i = 0;;
- }
- }
- printf("\n");
- yaffs_close(h);
- return ok;
-}
-
-
-
-void dump_file(const char *fn)
-{
- int i;
- int size;
- int h;
-
- h = yaffs_open(fn,O_RDONLY,0);
- if(h < 0)
- {
- printf("*****\nDump file %s does not exist\n",fn);
- }
- else
- {
- size = yaffs_lseek(h,0,SEEK_SET);
- printf("*****\nDump file %s size %d\n",fn,size);
- for(i = 0; i < size; i++)
- {
-
- }
- }
-}
-
-void create_file_of_size(const char *fn,int syze)
-{
- int h;
- int n;
-
- char xx[200];
-
- int iterations = (syze + strlen(fn) -1)/ strlen(fn);
-
- h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
-
- while (iterations > 0)
- {
- sprintf(xx,"%s %8d",fn,iterations);
- yaffs_write(h,xx,strlen(xx));
- iterations--;
- }
- yaffs_close (h);
-}
-
-void verify_file_of_size(const char *fn,int syze)
-{
- int h;
- int n;
-
- char xx[200];
- char yy[200];
- int l;
-
- int iterations = (syze + strlen(fn) -1)/ strlen(fn);
-
- h = yaffs_open(fn, O_RDONLY, S_IREAD | S_IWRITE);
-
- while (iterations > 0)
- {
- sprintf(xx,"%s %8d",fn,iterations);
- l = strlen(xx);
-
- yaffs_read(h,yy,l);
- yy[l] = 0;
-
- if(strcmp(xx,yy)){
- printf("=====>>>>> verification of file %s failed near position %d\n",fn,yaffs_lseek(h,0,SEEK_CUR));
- }
- iterations--;
- }
- yaffs_close (h);
-}
-
-void create_resized_file_of_size(const char *fn,int syze1,int reSyze, int syze2)
-{
- int h;
- int n;
-
-
- int iterations;
-
- h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
-
- iterations = (syze1 + strlen(fn) -1)/ strlen(fn);
- while (iterations > 0)
- {
- yaffs_write(h,fn,strlen(fn));
- iterations--;
- }
-
- yaffs_truncate(h,reSyze);
-
- yaffs_lseek(h,0,SEEK_SET);
- iterations = (syze2 + strlen(fn) -1)/ strlen(fn);
- while (iterations > 0)
- {
- yaffs_write(h,fn,strlen(fn));
- iterations--;
- }
-
- yaffs_close (h);
-}
-
-
-void do_some_file_stuff(const char *path)
-{
-
- char fn[100];
-
- sprintf(fn,"%s/%s",path,"f1");
- create_file_of_size(fn,10000);
-
- sprintf(fn,"%s/%s",path,"fdel");
- create_file_of_size(fn,10000);
- yaffs_unlink(fn);
-
- sprintf(fn,"%s/%s",path,"f2");
-
- create_resized_file_of_size(fn,10000,3000,4000);
-}
-
-void yaffs_backward_scan_test(const char *path)
-{
- char fn[100];
-
- yaffs_StartUp();
-
- yaffs_mount(path);
-
- do_some_file_stuff(path);
-
- sprintf(fn,"%s/ddd",path);
-
- yaffs_mkdir(fn,0);
-
- do_some_file_stuff(fn);
-
- yaffs_unmount(path);
-
- yaffs_mount(path);
-}
-
-char xxzz[2000];
-
-
-void yaffs_device_flush_test(const char *path)
-{
- char fn[100];
- int h;
- int i;
-
- yaffs_StartUp();
-
- yaffs_mount(path);
-
- do_some_file_stuff(path);
-
- // Open and add some data to a few files
- for(i = 0; i < 10; i++) {
-
- sprintf(fn,"%s/ff%d",path,i);
-
- h = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IWRITE | S_IREAD);
- yaffs_write(h,xxzz,2000);
- yaffs_write(h,xxzz,2000);
- }
- yaffs_unmount(path);
-
- yaffs_mount(path);
-}
-
-
-
-void short_scan_test(const char *path, int fsize, int niterations)
-{
- int i;
- char fn[100];
-
- sprintf(fn,"%s/%s",path,"f1");
-
- yaffs_StartUp();
- for(i = 0; i < niterations; i++)
- {
- printf("\n*****************\nIteration %d\n",i);
- yaffs_mount(path);
- printf("\nmount: Directory look-up of %s\n",path);
- dumpDir(path);
- make_a_file(fn,1,fsize);
- yaffs_unmount(path);
- }
-}
-
-
-
-void scan_pattern_test(const char *path, int fsize, int niterations)
-{
- int i;
- int j;
- char fn[3][100];
- int result;
-
- sprintf(fn[0],"%s/%s",path,"f0");
- sprintf(fn[1],"%s/%s",path,"f1");
- sprintf(fn[2],"%s/%s",path,"f2");
-
- yaffs_StartUp();
-
- for(i = 0; i < niterations; i++)
- {
- printf("\n*****************\nIteration %d\n",i);
- yaffs_mount(path);
- printf("\nmount: Directory look-up of %s\n",path);
- dumpDir(path);
- for(j = 0; j < 3; j++)
- {
- result = dump_file_data(fn[j]);
- result = check_pattern_file(fn[j]);
- make_pattern_file(fn[j],fsize);
- result = dump_file_data(fn[j]);
- result = check_pattern_file(fn[j]);
- }
- yaffs_unmount(path);
- }
-}
-
-void fill_disk(char *path,int nfiles)
-{
- int h;
- int n;
- int result;
- int f;
-
- char str[50];
-
- for(n = 0; n < nfiles; n++)
- {
- sprintf(str,"%s/%d",path,n);
-
- h = yaffs_open(str, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
-
- printf("writing file %s handle %d ",str, h);
-
- while ((result = yaffs_write(h,xx,600)) == 600)
- {
- f = yaffs_freespace(path);
- }
- result = yaffs_close(h);
- printf(" close %d\n",result);
- }
-}
-
-void fill_disk_and_delete(char *path, int nfiles, int ncycles)
-{
- int i,j;
- char str[50];
- int result;
-
- for(i = 0; i < ncycles; i++)
- {
- printf("@@@@@@@@@@@@@@ cycle %d\n",i);
- fill_disk(path,nfiles);
-
- for(j = 0; j < nfiles; j++)
- {
- sprintf(str,"%s/%d",path,j);
- result = yaffs_unlink(str);
- printf("unlinking file %s, result %d\n",str,result);
- }
- }
-}
-
-
-void fill_files(char *path,int flags, int maxIterations,int siz)
-{
- int i;
- int j;
- char str[50];
- int h;
-
- i = 0;
-
- do{
- sprintf(str,"%s/%d",path,i);
- h = yaffs_open(str, O_CREAT | O_TRUNC | O_RDWR,S_IREAD | S_IWRITE);
- yaffs_close(h);
-
- if(h >= 0)
- {
- for(j = 0; j < siz; j++)
- {
- yaffs_write(h,str,1);
- }
- }
-
- if( flags & 1)
- {
- yaffs_unlink(str);
- }
- i++;
- } while(h >= 0 && i < maxIterations);
-
- if(flags & 2)
- {
- i = 0;
- do{
- sprintf(str,"%s/%d",path,i);
- printf("unlink %s\n",str);
- i++;
- } while(yaffs_unlink(str) >= 0);
- }
-}
-
-void leave_unlinked_file(char *path,int maxIterations,int siz)
-{
- int i;
- char str[50];
- int h;
-
- i = 0;
-
- do{
- sprintf(str,"%s/%d",path,i);
- printf("create %s\n",str);
- h = yaffs_open(str, O_CREAT | O_TRUNC | O_RDWR,S_IREAD | S_IWRITE);
- if(h >= 0)
- {
- yaffs_unlink(str);
- }
- i++;
- } while(h < 0 && i < maxIterations);
-
- if(h >= 0)
- {
- for(i = 0; i < siz; i++)
- {
- yaffs_write(h,str,1);
- }
- }
-
- printf("Leaving file %s open\n",str);
-
-}
-
-void dumpDirFollow(const char *dname)
-{
- yaffs_DIR *d;
- yaffs_dirent *de;
- struct yaffs_stat s;
- char str[100];
-
- d = yaffs_opendir(dname);
-
- if(!d)
- {
- printf("opendir failed\n");
- }
- else
- {
- while((de = yaffs_readdir(d)) != NULL)
- {
- sprintf(str,"%s/%s",dname,de->d_name);
-
- yaffs_stat(str,&s);
-
- printf("%s length %d mode %X ",de->d_name,(int)s.st_size,s.st_mode);
- switch(s.st_mode & S_IFMT)
- {
- case S_IFREG: printf("data file"); break;
- case S_IFDIR: printf("directory"); break;
- case S_IFLNK: printf("symlink -->");
- if(yaffs_readlink(str,str,100) < 0)
- printf("no alias");
- else
- printf("\"%s\"",str);
- break;
- default: printf("unknown"); break;
- }
-
- printf("\n");
- }
-
- yaffs_closedir(d);
- }
- printf("\n");
-
- printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
-
-}
-
-
-void dump_directory_tree_worker(const char *dname,int recursive)
-{
- yaffs_DIR *d;
- yaffs_dirent *de;
- struct yaffs_stat s;
- char str[1000];
-
- d = yaffs_opendir(dname);
-
- if(!d)
- {
- printf("opendir failed\n");
- }
- else
- {
- while((de = yaffs_readdir(d)) != NULL)
- {
- sprintf(str,"%s/%s",dname,de->d_name);
-
- yaffs_lstat(str,&s);
-
- printf("%s inode %d obj %x length %d mode %X ",str,s.st_ino,de->d_dont_use,(int)s.st_size,s.st_mode);
- switch(s.st_mode & S_IFMT)
- {
- case S_IFREG: printf("data file"); break;
- case S_IFDIR: printf("directory"); break;
- case S_IFLNK: printf("symlink -->");
- if(yaffs_readlink(str,str,100) < 0)
- printf("no alias");
- else
- printf("\"%s\"",str);
- break;
- default: printf("unknown"); break;
- }
-
- printf("\n");
-
- if((s.st_mode & S_IFMT) == S_IFDIR && recursive)
- dump_directory_tree_worker(str,1);
-
- }
-
- yaffs_closedir(d);
- }
-
-}
-
-static void dump_directory_tree(const char *dname)
-{
- dump_directory_tree_worker(dname,1);
- printf("\n");
- printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
-}
-
-void dumpDir(const char *dname)
-{ dump_directory_tree_worker(dname,0);
- printf("\n");
- printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
-}
-
-
-static void PermissionsCheck(const char *path, mode_t tmode, int tflags,int expectedResult)
-{
- int fd;
-
- if(yaffs_chmod(path,tmode)< 0) printf("chmod failed\n");
-
- fd = yaffs_open(path,tflags,0);
-
- if((fd >= 0) != (expectedResult > 0))
- {
- printf("Permissions check %x %x %d failed\n",tmode,tflags,expectedResult);
- }
- else
- {
- printf("Permissions check %x %x %d OK\n",tmode,tflags,expectedResult);
- }
-
-
- yaffs_close(fd);
-
-
-}
-
-int long_test(int argc, char *argv[])
-{
-
- int f;
- int r;
- char buffer[20];
-
- char str[100];
-
- int h;
- mode_t temp_mode;
- struct yaffs_stat ystat;
-
- yaffs_StartUp();
-
- yaffs_mount("/boot");
- yaffs_mount("/data");
- yaffs_mount("/flash");
- yaffs_mount("/ram");
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
- printf("\nDirectory look-up of /data\n");
- dumpDir("/data");
- printf("\nDirectory look-up of /flash\n");
- dumpDir("/flash");
-
- //leave_unlinked_file("/flash",20000,0);
- //leave_unlinked_file("/data",20000,0);
-
- leave_unlinked_file("/ram",20,0);
-
-
- f = yaffs_open("/boot/b1", O_RDONLY,0);
-
- printf("open /boot/b1 readonly, f=%d\n",f);
-
- f = yaffs_open("/boot/b1", O_CREAT,S_IREAD | S_IWRITE);
-
- printf("open /boot/b1 O_CREAT, f=%d\n",f);
-
-
- r = yaffs_write(f,"hello",1);
- printf("write %d attempted to write to a read-only file\n",r);
-
- r = yaffs_close(f);
-
- printf("close %d\n",r);
-
- f = yaffs_open("/boot/b1", O_RDWR,0);
-
- printf("open /boot/b1 O_RDWR,f=%d\n",f);
-
-
- r = yaffs_write(f,"hello",2);
- printf("write %d attempted to write to a writeable file\n",r);
- r = yaffs_write(f,"world",3);
- printf("write %d attempted to write to a writeable file\n",r);
-
- r= yaffs_lseek(f,0,SEEK_END);
- printf("seek end %d\n",r);
- memset(buffer,0,20);
- r = yaffs_read(f,buffer,10);
- printf("read %d \"%s\"\n",r,buffer);
- r= yaffs_lseek(f,0,SEEK_SET);
- printf("seek set %d\n",r);
- memset(buffer,0,20);
- r = yaffs_read(f,buffer,10);
- printf("read %d \"%s\"\n",r,buffer);
- memset(buffer,0,20);
- r = yaffs_read(f,buffer,10);
- printf("read %d \"%s\"\n",r,buffer);
-
- // Check values reading at end.
- // A read past end of file should return 0 for 0 bytes read.
-
- r= yaffs_lseek(f,0,SEEK_END);
- r = yaffs_read(f,buffer,10);
- printf("read at end returned %d\n",r);
- r= yaffs_lseek(f,500,SEEK_END);
- r = yaffs_read(f,buffer,10);
- printf("read past end returned %d\n",r);
-
- r = yaffs_close(f);
-
- printf("close %d\n",r);
-
- copy_in_a_file("/boot/yyfile","xxx");
-
- // Create a file with a long name
-
- copy_in_a_file("/boot/file with a long name","xxx");
-
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
-
- // Check stat
- r = yaffs_stat("/boot/file with a long name",&ystat);
-
- // Check rename
-
- r = yaffs_rename("/boot/file with a long name","/boot/r1");
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
-
- // Check unlink
- r = yaffs_unlink("/boot/r1");
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
-
- // Check mkdir
-
- r = yaffs_mkdir("/boot/directory1",0);
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
- printf("\nDirectory look-up of /boot/directory1\n");
- dumpDir("/boot/directory1");
-
- // add a file to the directory
- copy_in_a_file("/boot/directory1/file with a long name","xxx");
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
- printf("\nDirectory look-up of /boot/directory1\n");
- dumpDir("/boot/directory1");
-
- // Attempt to delete directory (should fail)
-
- r = yaffs_rmdir("/boot/directory1");
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
- printf("\nDirectory look-up of /boot/directory1\n");
- dumpDir("/boot/directory1");
-
- // Delete file first, then rmdir should work
- r = yaffs_unlink("/boot/directory1/file with a long name");
- r = yaffs_rmdir("/boot/directory1");
-
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
- printf("\nDirectory look-up of /boot/directory1\n");
- dumpDir("/boot/directory1");
-
-#if 0
- fill_disk_and_delete("/boot",20,20);
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
-#endif
-
- yaffs_symlink("yyfile","/boot/slink");
-
- yaffs_readlink("/boot/slink",str,100);
- printf("symlink alias is %s\n",str);
-
-
-
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
- printf("\nDirectory look-up of /boot (using stat instead of lstat)\n");
- dumpDirFollow("/boot");
- printf("\nDirectory look-up of /boot/directory1\n");
- dumpDir("/boot/directory1");
-
- h = yaffs_open("/boot/slink",O_RDWR,0);
-
- printf("file length is %d\n",(int)yaffs_lseek(h,0,SEEK_END));
-
- yaffs_close(h);
-
- yaffs_unlink("/boot/slink");
-
-
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
-
- // Check chmod
-
- yaffs_stat("/boot/yyfile",&ystat);
- temp_mode = ystat.st_mode;
-
- yaffs_chmod("/boot/yyfile",0x55555);
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
-
- yaffs_chmod("/boot/yyfile",temp_mode);
- printf("\nDirectory look-up of /boot\n");
- dumpDir("/boot");
-
- // Permission checks...
- PermissionsCheck("/boot/yyfile",0, O_WRONLY,0);
- PermissionsCheck("/boot/yyfile",0, O_RDONLY,0);
- PermissionsCheck("/boot/yyfile",0, O_RDWR,0);
-
- PermissionsCheck("/boot/yyfile",S_IREAD, O_WRONLY,0);
- PermissionsCheck("/boot/yyfile",S_IREAD, O_RDONLY,1);
- PermissionsCheck("/boot/yyfile",S_IREAD, O_RDWR,0);
-
- PermissionsCheck("/boot/yyfile",S_IWRITE, O_WRONLY,1);
- PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDONLY,0);
- PermissionsCheck("/boot/yyfile",S_IWRITE, O_RDWR,0);
-
- PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_WRONLY,1);
- PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDONLY,1);
- PermissionsCheck("/boot/yyfile",S_IREAD | S_IWRITE, O_RDWR,1);
-
- yaffs_chmod("/boot/yyfile",temp_mode);
-
- //create a zero-length file and unlink it (test for scan bug)
-
- h = yaffs_open("/boot/zlf",O_CREAT | O_TRUNC | O_RDWR,0);
- yaffs_close(h);
-
- yaffs_unlink("/boot/zlf");
-
-
- yaffs_DumpDevStruct("/boot");
-
- fill_disk_and_delete("/boot",20,20);
-
- yaffs_DumpDevStruct("/boot");
-
- fill_files("/boot",1,10000,0);
- fill_files("/boot",1,10000,5000);
- fill_files("/boot",2,10000,0);
- fill_files("/boot",2,10000,5000);
-
- leave_unlinked_file("/data",20000,0);
- leave_unlinked_file("/data",20000,5000);
- leave_unlinked_file("/data",20000,5000);
- leave_unlinked_file("/data",20000,5000);
- leave_unlinked_file("/data",20000,5000);
- leave_unlinked_file("/data",20000,5000);
-
- yaffs_DumpDevStruct("/boot");
- yaffs_DumpDevStruct("/data");
-
-
-
- return 0;
-
-}
-
-int huge_directory_test_on_path(char *path)
-{
-
- yaffs_DIR *d;
- yaffs_dirent *de;
- struct yaffs_stat s;
-
- int f;
- int i;
- int r;
- int total = 0;
- int lastTotal = 0;
- char buffer[20];
-
- char str[100];
- char name[100];
- char name2[100];
-
- int h;
- mode_t temp_mode;
- struct yaffs_stat ystat;
-
- yaffs_StartUp();
-
- yaffs_mount(path);
-
- // Create a large number of files
-
- for(i = 0; i < 2000; i++)
- {
- sprintf(str,"%s/%d",path,i);
-
- f = yaffs_open(str,O_CREAT,S_IREAD | S_IWRITE);
- yaffs_close(f);
- }
-
-
-
- d = yaffs_opendir(path);
- i = 0;
- if (d) {
- while((de = yaffs_readdir(d)) != NULL) {
- if (total >lastTotal+100*9*1024||(i & 1023)==0){
- printf("files = %d, total = %d\n",i, total);
- lastTotal = total;
- }
- i++;
- sprintf(str,"%s/%s",path,de->d_name);
- yaffs_lstat(str,&s);
- switch(s.st_mode & S_IFMT){
- case S_IFREG:
- //printf("data file");
- total += s.st_size;
- break;
- }
- }
-
- yaffs_closedir(d);
- }
-
- return 0;
-}
-
-int yaffs_scan_test(const char *path)
-{
-}
-
-
-void rename_over_test(const char *mountpt)
-{
- int i;
- char a[100];
- char b[100];
-
- sprintf(a,"%s/a",mountpt);
- sprintf(b,"%s/b",mountpt);
-
- yaffs_StartUp();
-
- yaffs_mount(mountpt);
- i = yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, 0);
- yaffs_close(i);
- i = yaffs_open(b,O_CREAT | O_TRUNC | O_RDWR, 0);
- yaffs_close(i);
- yaffs_rename(a,b); // rename over
- yaffs_rename(b,a); // rename back again (not renaimng over)
- yaffs_rename(a,b); // rename back again (not renaimng over)
-
-
- yaffs_unmount(mountpt);
-
-}
-
-int resize_stress_test(const char *path)
-{
- int a,b,i,j;
- int x;
- int r;
- char aname[100];
- char bname[100];
-
- char abuffer[1000];
- char bbuffer[1000];
-
- yaffs_StartUp();
-
- yaffs_mount(path);
-
- sprintf(aname,"%s%s",path,"/a");
- sprintf(bname,"%s%s",path,"/b");
-
- memset(abuffer,'a',1000);
- memset(bbuffer,'b',1000);
-
- a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
- b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- printf(" %s %d %s %d\n",aname,a,bname,b);
-
- x = 0;
-
- for(j = 0; j < 100; j++)
- {
- yaffs_lseek(a,0,SEEK_END);
-
-
- for(i = 0; i <20000; i++)
- {
- //r = yaffs_lseek(b,i,SEEK_SET);
- //r = yaffs_write(b,bbuffer,1000);
-
- if(x & 0x16)
- {
- // shrink
- int syz = yaffs_lseek(a,0,SEEK_END);
-
- syz -= 500;
- if(syz < 0) syz = 0;
- yaffs_truncate(a,syz);
-
- }
- else
- {
- //expand
- r = yaffs_lseek(a,i * 500,SEEK_SET);
- r = yaffs_write(a,abuffer,1000);
- }
- x++;
-
- }
- }
-
- return 0;
-
-}
-
-
-int resize_stress_test_no_grow_complex(const char *path,int iters)
-{
- int a,b,i,j;
- int x;
- int r;
- char aname[100];
- char bname[100];
-
- char abuffer[1000];
- char bbuffer[1000];
-
- yaffs_StartUp();
-
- yaffs_mount(path);
-
- sprintf(aname,"%s%s",path,"/a");
- sprintf(bname,"%s%s",path,"/b");
-
- memset(abuffer,'a',1000);
- memset(bbuffer,'b',1000);
-
- a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
- b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- printf(" %s %d %s %d\n",aname,a,bname,b);
-
- x = 0;
-
- for(j = 0; j < iters; j++)
- {
- yaffs_lseek(a,0,SEEK_END);
-
-
- for(i = 0; i <20000; i++)
- {
- //r = yaffs_lseek(b,i,SEEK_SET);
- //r = yaffs_write(b,bbuffer,1000);
-
- if(!(x%20))
- {
- // shrink
- int syz = yaffs_lseek(a,0,SEEK_END);
-
- while(syz > 4000)
- {
-
- syz -= 2050;
- if(syz < 0) syz = 0;
- yaffs_truncate(a,syz);
- syz = yaffs_lseek(a,0,SEEK_END);
- printf("shrink to %d\n",syz);
- }
-
-
- }
- else
- {
- //expand
- r = yaffs_lseek(a,500,SEEK_END);
- r = yaffs_write(a,abuffer,1000);
- }
- x++;
-
-
- }
- printf("file size is %d\n",yaffs_lseek(a,0,SEEK_END));
-
- }
-
- return 0;
-
-}
-
-int resize_stress_test_no_grow(const char *path,int iters)
-{
- int a,b,i,j;
- int x;
- int r;
- char aname[100];
- char bname[100];
-
- char abuffer[1000];
- char bbuffer[1000];
-
- yaffs_StartUp();
-
- yaffs_mount(path);
-
- sprintf(aname,"%s%s",path,"/a");
- sprintf(bname,"%s%s",path,"/b");
-
- memset(abuffer,'a',1000);
- memset(bbuffer,'b',1000);
-
- a = yaffs_open(aname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
- b = yaffs_open(bname, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- printf(" %s %d %s %d\n",aname,a,bname,b);
-
- x = 0;
-
- for(j = 0; j < iters; j++)
- {
- yaffs_lseek(a,0,SEEK_END);
-
-
- for(i = 0; i <20000; i++)
- {
- //r = yaffs_lseek(b,i,SEEK_SET);
- //r = yaffs_write(b,bbuffer,1000);
-
- if(!(x%20))
- {
- // shrink
- int syz = yaffs_lseek(a,0,SEEK_END);
-
- while(syz > 4000)
- {
-
- syz -= 2050;
- if(syz < 0) syz = 0;
- yaffs_truncate(a,syz);
- syz = yaffs_lseek(a,0,SEEK_END);
- printf("shrink to %d\n",syz);
- }
-
-
- }
- else
- {
- //expand
- r = yaffs_lseek(a,-500,SEEK_END);
- r = yaffs_write(a,abuffer,1000);
- }
- x++;
-
-
- }
- printf("file size is %d\n",yaffs_lseek(a,0,SEEK_END));
-
- }
-
- return 0;
-
-}
-
-int directory_rename_test(void)
-{
- int r;
- yaffs_StartUp();
-
- yaffs_mount("/ram");
- yaffs_mkdir("/ram/a",0);
- yaffs_mkdir("/ram/a/b",0);
- yaffs_mkdir("/ram/c",0);
-
- printf("\nDirectory look-up of /ram\n");
- dumpDir("/ram");
- dumpDir("/ram/a");
- dumpDir("/ram/a/b");
-
- printf("Do rename (should fail)\n");
-
- r = yaffs_rename("/ram/a","/ram/a/b/d");
- printf("\nDirectory look-up of /ram\n");
- dumpDir("/ram");
- dumpDir("/ram/a");
- dumpDir("/ram/a/b");
-
- printf("Do rename (should not fail)\n");
-
- r = yaffs_rename("/ram/c","/ram/a/b/d");
- printf("\nDirectory look-up of /ram\n");
- dumpDir("/ram");
- dumpDir("/ram/a");
- dumpDir("/ram/a/b");
-
-
- return 1;
-
-}
-
-int cache_read_test(void)
-{
- int a,b,c;
- int i;
- int sizeOfFiles = 500000;
- char buffer[100];
-
- yaffs_StartUp();
-
- yaffs_mount("/boot");
-
- make_a_file("/boot/a",'a',sizeOfFiles);
- make_a_file("/boot/b",'b',sizeOfFiles);
-
- a = yaffs_open("/boot/a",O_RDONLY,0);
- b = yaffs_open("/boot/b",O_RDONLY,0);
- c = yaffs_open("/boot/c", O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
-
- do{
- i = sizeOfFiles;
- if (i > 100) i = 100;
- sizeOfFiles -= i;
- yaffs_read(a,buffer,i);
- yaffs_read(b,buffer,i);
- yaffs_write(c,buffer,i);
- } while(sizeOfFiles > 0);
-
-
-
- return 1;
-
-}
-
-int cache_bypass_bug_test(void)
-{
- // This test reporoduces a bug whereby YAFFS caching *was* buypassed
- // resulting in erroneous reads after writes.
- // This bug has been fixed.
-
- int a;
- int i;
- char buffer1[1000];
- char buffer2[1000];
-
- memset(buffer1,0,sizeof(buffer1));
- memset(buffer2,0,sizeof(buffer2));
-
- yaffs_StartUp();
-
- yaffs_mount("/boot");
-
- // Create a file of 2000 bytes.
- make_a_file("/boot/a",'X',2000);
-
- a = yaffs_open("/boot/a",O_RDWR, S_IREAD | S_IWRITE);
-
- // Write a short sequence to the file.
- // This will go into the cache.
- yaffs_lseek(a,0,SEEK_SET);
- yaffs_write(a,"abcdefghijklmnopqrstuvwxyz",20);
-
- // Read a short sequence from the file.
- // This will come from the cache.
- yaffs_lseek(a,0,SEEK_SET);
- yaffs_read(a,buffer1,30);
-
- // Read a page size sequence from the file.
- yaffs_lseek(a,0,SEEK_SET);
- yaffs_read(a,buffer2,512);
-
- printf("buffer 1 %s\n",buffer1);
- printf("buffer 2 %s\n",buffer2);
-
- if(strncmp(buffer1,buffer2,20))
- {
- printf("Cache bypass bug detected!!!!!\n");
- }
-
-
- return 1;
-}
-
-
-int free_space_check(void)
-{
- int f;
-
- yaffs_StartUp();
- yaffs_mount("/boot");
- fill_disk("/boot/",2);
- f = yaffs_freespace("/boot");
-
- printf("%d free when disk full\n",f);
- return 1;
-}
-
-int truncate_test(void)
-{
- int a;
- int r;
- int i;
- int l;
-
- char y[10];
-
- yaffs_StartUp();
- yaffs_mount("/boot");
-
- yaffs_unlink("/boot/trunctest");
-
- a = yaffs_open("/boot/trunctest", O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- yaffs_write(a,"abcdefghijklmnopqrstuvwzyz",26);
-
- yaffs_truncate(a,3);
- l= yaffs_lseek(a,0,SEEK_END);
-
- printf("truncated length is %d\n",l);
-
- yaffs_lseek(a,5,SEEK_SET);
- yaffs_write(a,"1",1);
-
- yaffs_lseek(a,0,SEEK_SET);
-
- r = yaffs_read(a,y,10);
-
- printf("read %d bytes:",r);
-
- for(i = 0; i < r; i++) printf("[%02X]",y[i]);
-
- printf("\n");
-
- return 0;
-
-}
-
-
-
-
-
-void fill_disk_test(const char *mountpt)
-{
- int i;
- yaffs_StartUp();
-
- for(i = 0; i < 5; i++)
- {
- yaffs_mount(mountpt);
- fill_disk_and_delete(mountpt,100,i+1);
- yaffs_unmount(mountpt);
- }
-
-}
-
-
-
-void lookup_test(const char *mountpt)
-{
- int i;
- int h;
- char a[100];
- char b[100];
-
-
- yaffs_DIR *d;
- yaffs_dirent *de;
- struct yaffs_stat s;
- char str[100];
-
- yaffs_StartUp();
-
- yaffs_mount(mountpt);
-
- d = yaffs_opendir(mountpt);
-
- if(!d)
- {
- printf("opendir failed\n");
- }
- else
- {
-
- for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
- {
- printf("unlinking %s\n",de->d_name);
- yaffs_unlink(de->d_name);
- }
-
- printf("%d files deleted\n",i);
- }
-
-
- for(i = 0; i < 2000; i++){
- sprintf(a,"%s/%d",mountpt,i);
- h = yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, 0);
- yaffs_close(h);
- }
-
- yaffs_rewinddir(d);
- for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
- {
- printf("%d %s\n",i,de->d_name);
- }
-
- printf("%d files listed\n\n\n",i);
-
- yaffs_rewinddir(d);
- yaffs_readdir(d);
- yaffs_readdir(d);
- yaffs_readdir(d);
-
- for(i = 0; i < 2000; i++){
- sprintf(a,"%s/%d",mountpt,i);
- yaffs_unlink(a);
- }
-
-
- yaffs_unmount(mountpt);
-
-}
-
-void link_test(const char *mountpt)
-{
- int i;
- int h;
- char a[100];
- char b[100];
- char c[100];
-
- int f0;
- int f1;
- int f2;
- int f3;
- sprintf(a,"%s/aaa",mountpt);
- sprintf(b,"%s/bbb",mountpt);
- sprintf(c,"%s/ccc",mountpt);
-
- yaffs_StartUp();
-
- yaffs_mount(mountpt);
-
-
- h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
- for(i = 0; i < 100; i++)
- yaffs_write(h,a,100);
-
- yaffs_close(h);
-
- yaffs_unlink(b);
- yaffs_unlink(c);
- yaffs_link(a,b);
- yaffs_link(a,c);
- yaffs_unlink(b);
- yaffs_unlink(c);
- yaffs_unlink(a);
-
-
- yaffs_unmount(mountpt);
- yaffs_mount(mountpt);
-
- printf("link test done\n");
-
-}
-
-void freespace_test(const char *mountpt)
-{
- int i;
- int h;
- char a[100];
- char b[100];
-
- int f0;
- int f1;
- int f2;
- int f3;
- sprintf(a,"%s/aaa",mountpt);
-
- yaffs_StartUp();
-
- yaffs_mount(mountpt);
-
- f0 = yaffs_freespace(mountpt);
-
- h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- for(i = 0; i < 100; i++)
- yaffs_write(h,a,100);
-
- yaffs_close(h);
-
- f1 = yaffs_freespace(mountpt);
-
- yaffs_unlink(a);
-
- f2 = yaffs_freespace(mountpt);
-
-
- yaffs_unmount(mountpt);
- yaffs_mount(mountpt);
-
- f3 = yaffs_freespace(mountpt);
-
- printf("%d\n%d\n%d\n%d\n",f0, f1,f2,f3);
-
-
-}
-
-void simple_rw_test(const char *mountpt)
-{
- int i;
- int h;
- char a[100];
-
- int x;
- int result;
-
- sprintf(a,"%s/aaa",mountpt);
-
- yaffs_StartUp();
-
- yaffs_mount(mountpt);
-
- yaffs_unlink(a);
-
- h = yaffs_open(a,O_CREAT| O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- for(i = 100000;i < 200000; i++){
- result = yaffs_write(h,&i,sizeof(i));
-
- if(result != 4)
- {
- printf("write error\n");
- exit(1);
- }
- }
-
- //yaffs_close(h);
-
- // h = yaffs_open(a,O_RDWR, S_IREAD | S_IWRITE);
-
-
- yaffs_lseek(h,0,SEEK_SET);
-
- for(i = 100000; i < 200000; i++){
- result = yaffs_read(h,&x,sizeof(x));
-
- if(result != 4 || x != i){
- printf("read error %d %x %x\n",i,result,x);
- }
- }
-
- printf("Simple rw test passed\n");
-
-
-
-}
-
-
-void scan_deleted_files_test(const char *mountpt)
-{
- char fn[100];
- char sub[100];
-
- const char *p;
-
- int i;
- int j;
- int k;
- int h;
-
- sprintf(sub,"%s/sdir",mountpt);
- yaffs_StartUp();
-
- for(j = 0; j < 10; j++)
- {
- printf("\n\n>>>>>>> Run %d <<<<<<<<<<<<<\n\n",j);
- yaffs_mount(mountpt);
- yaffs_mkdir(sub,0);
-
-
- p = (j & 0) ? mountpt: sub;
-
- for(i = 0; i < 100; i++)
- {
- sprintf(fn,"%s/%d",p,i);
-
- if(i & 1)
- {
- h = yaffs_open(fn,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
- for(k = 0; k < 1000; k++)
- yaffs_write(h,fn,100);
- yaffs_close(h);
- }
- else
- yaffs_mkdir(fn,0);
- }
-
- for(i = 0; i < 10; i++)
- {
- sprintf(fn,"%s/%d",p,i);
- if(i & 1)
- yaffs_unlink(fn);
- else
- yaffs_rmdir(fn);
-
- }
-
- yaffs_unmount(mountpt);
- }
-
-
-
-
-}
-
-
-void write_10k(int h)
-{
- int i;
- const char *s="0123456789";
- for(i = 0; i < 1000; i++)
- yaffs_write(h,s,10);
-
-}
-void write_200k_file(const char *fn, const char *fdel, const char *fdel1)
-{
- int h1;
- int i;
- int offs;
-
- h1 = yaffs_open(fn, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- for(i = 0; i < 100000; i+= 10000)
- {
- write_10k(h1);
- }
-
- offs = yaffs_lseek(h1,0,SEEK_CUR);
- if( offs != 100000)
- {
- printf("Could not write file\n");
- }
-
- yaffs_unlink(fdel);
- for(i = 0; i < 100000; i+= 10000)
- {
- write_10k(h1);
- }
-
- offs = yaffs_lseek(h1,0,SEEK_CUR);
- if( offs != 200000)
- {
- printf("Could not write file\n");
- }
-
- yaffs_close(h1);
- yaffs_unlink(fdel1);
-
-}
-
-
-void verify_200k_file(const char *fn)
-{
- int h1;
- int i;
- char x[11];
- const char *s="0123456789";
- int errCount = 0;
-
- h1 = yaffs_open(fn, O_RDONLY, 0);
-
- for(i = 0; i < 200000 && errCount < 10; i+= 10)
- {
- yaffs_read(h1,x,10);
- if(strncmp(x,s,10) != 0)
- {
- printf("File %s verification failed at %d\n",fn,i);
- errCount++;
- }
- }
- if(errCount >= 10)
- printf("Too many errors... aborted\n");
-
- yaffs_close(h1);
-
-}
-
-
-void check_resize_gc_bug(const char *mountpt)
-{
-
- char a[30];
- char b[30];
- char c[30];
-
- int i;
-
- sprintf(a,"%s/a",mountpt);
- sprintf(b,"%s/b",mountpt);
- sprintf(c,"%s/c",mountpt);
-
-
-
-
- yaffs_StartUp();
- yaffs_mount(mountpt);
- yaffs_unlink(a);
- yaffs_unlink(b);
-
- for(i = 0; i < 50; i++)
- {
- printf("A\n");write_200k_file(a,"",c);
- printf("B\n");verify_200k_file(a);
- printf("C\n");write_200k_file(b,a,c);
- printf("D\n");verify_200k_file(b);
- yaffs_unmount(mountpt);
- yaffs_mount(mountpt);
- printf("E\n");verify_200k_file(a);
- printf("F\n");verify_200k_file(b);
- }
-
-}
-
-
-void multi_mount_test(const char *mountpt,int nmounts)
-{
-
- char a[30];
- char b[30];
- char c[30];
-
- int i;
- int j;
-
- sprintf(a,"%s/a",mountpt);
-
- yaffs_StartUp();
-
- for(i = 0; i < nmounts; i++){
- int h0;
- int h1;
- int len0;
- int len1;
-
- static char xx[1000];
-
- printf("############### Iteration %d Start\n",i);
- if(1 || i == 0 || i == 5)
- yaffs_mount(mountpt);
-
- dump_directory_tree(mountpt);
-
-
- yaffs_mkdir(a,0);
-
- sprintf(xx,"%s/0",a);
- h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
-
- sprintf(xx,"%s/1",a);
- h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
-
- for(j = 0; j < 200; j++){
- yaffs_write(h0,xx,1000);
- yaffs_write(h1,xx,1000);
- }
-
- len0 = yaffs_lseek(h0,0,SEEK_END);
- len1 = yaffs_lseek(h1,0,SEEK_END);
-
- yaffs_lseek(h0,0,SEEK_SET);
- yaffs_lseek(h1,0,SEEK_SET);
-
- for(j = 0; j < 200; j++){
- yaffs_read(h0,xx,1000);
- yaffs_read(h1,xx,1000);
- }
-
-
- yaffs_truncate(h0,0);
- yaffs_close(h0);
- yaffs_close(h1);
-
- printf("########### %d\n",i);
- dump_directory_tree(mountpt);
-
- if(1 || i == 4 || i == nmounts -1)
- yaffs_unmount(mountpt);
- }
-}
-
-
-void small_mount_test(const char *mountpt,int nmounts)
-{
-
- char a[30];
- char b[30];
- char c[30];
-
- int i;
- int j;
-
- int h0;
- int h1;
- int len0;
- int len1;
- int nread;
-
- sprintf(a,"%s/a",mountpt);
-
- yaffs_StartUp();
-
-
-
- for(i = 0; i < nmounts; i++){
-
- static char xx[1000];
-
- printf("############### Iteration %d Start\n",i);
- if(1 || i == 0 || i == 5)
- yaffs_mount(mountpt);
-
- dump_directory_tree(mountpt);
-
- yaffs_mkdir(a,0);
-
- sprintf(xx,"%s/0",a);
- if(i ==0){
-
- h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
- for(j = 0; j < 130; j++)
- yaffs_write(h0,xx,1000);
- yaffs_close(h0);
- }
-
- h0 = yaffs_open(xx,O_RDONLY,0);
-
- sprintf(xx,"%s/1",a);
- h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
-
- while((nread = yaffs_read(h0,xx,1000)) > 0)
- yaffs_write(h1,xx,nread);
-
-
- len0 = yaffs_lseek(h0,0,SEEK_END);
- len1 = yaffs_lseek(h1,0,SEEK_END);
-
- yaffs_lseek(h0,0,SEEK_SET);
- yaffs_lseek(h1,0,SEEK_SET);
-
- for(j = 0; j < 200; j++){
- yaffs_read(h0,xx,1000);
- yaffs_read(h1,xx,1000);
- }
-
- yaffs_close(h0);
- yaffs_close(h1);
-
- printf("########### %d\n",i);
- dump_directory_tree(mountpt);
-
- if(1 || i == 4 || i == nmounts -1)
- yaffs_unmount(mountpt);
- }
-}
-
-
-int early_exit;
-
-void small_overwrite_test(const char *mountpt,int nmounts)
-{
-
- char a[30];
- char b[30];
- char c[30];
-
- int i;
- int j;
-
- int h0;
- int h1;
- int len0;
- int len1;
- int nread;
-
- sprintf(a,"%s/a",mountpt);
-
- yaffs_StartUp();
-
-
-
- for(i = 0; i < nmounts; i++){
-
- static char xx[8000];
-
- printf("############### Iteration %d Start\n",i);
- if(1)
- yaffs_mount(mountpt);
-
- dump_directory_tree(mountpt);
-
- yaffs_mkdir(a,0);
-
- sprintf(xx,"%s/0",a);
- h0 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
- sprintf(xx,"%s/1",a);
- h1 = yaffs_open(xx, O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
-
- for(j = 0; j < 1000000; j+=1000){
- yaffs_truncate(h0,j);
- yaffs_lseek(h0,j,SEEK_SET);
- yaffs_write(h0,xx,7000);
- yaffs_write(h1,xx,7000);
-
- if(early_exit)
- exit(0);
- }
-
- yaffs_close(h0);
-
- printf("########### %d\n",i);
- dump_directory_tree(mountpt);
-
- if(1)
- yaffs_unmount(mountpt);
- }
-}
-
-
-void yaffs_touch(const char *fn)
-{
- yaffs_chmod(fn, S_IREAD | S_IWRITE);
-}
-
-void checkpoint_fill_test(const char *mountpt,int nmounts)
-{
-
- char a[50];
- char b[50];
- char c[50];
-
- int i;
- int j;
- int h;
-
- sprintf(a,"%s/a",mountpt);
-
-
-
-
- yaffs_StartUp();
-
- for(i = 0; i < nmounts; i++){
- printf("############### Iteration %d Start\n",i);
- yaffs_mount(mountpt);
- dump_directory_tree(mountpt);
- yaffs_mkdir(a,0);
-
- sprintf(b,"%s/zz",a);
-
- h = yaffs_open(b,O_CREAT | O_RDWR,S_IREAD |S_IWRITE);
-
-
- while(yaffs_write(h,c,50) == 50){}
-
- yaffs_close(h);
-
- for(j = 0; j < 2; j++){
- printf("touch %d\n",j);
- yaffs_touch(b);
- yaffs_unmount(mountpt);
- yaffs_mount(mountpt);
- }
-
- dump_directory_tree(mountpt);
- yaffs_unmount(mountpt);
- }
-}
-
-
-int make_file2(const char *name1, const char *name2,int syz)
-{
-
- char xx[2500];
- int i;
- int h1=-1,h2=-1;
- int n = 1;
-
-
- if(name1)
- h1 = yaffs_open(name1,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
- if(name2)
- h2 = yaffs_open(name2,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
-
- while(syz > 0 && n > 0){
- i = (syz > 2500) ? 2500 : syz;
- n = yaffs_write(h1,xx,i);
- n = yaffs_write(h2,xx,i);
- syz -= 500;
- }
- yaffs_close(h1);
- yaffs_close(h2);
-
-}
-
-
-extern void SetCheckpointReservedBlocks(int n);
-
-void checkpoint_upgrade_test(const char *mountpt,int nmounts)
-{
-
- char a[50];
- char b[50];
- char c[50];
- char d[50];
-
- int i;
- int j;
- int h;
-
- sprintf(a,"%s/a",mountpt);
-
-
-
-
- printf("Create start condition\n");
- yaffs_StartUp();
- SetCheckpointReservedBlocks(0);
- yaffs_mount(mountpt);
- yaffs_mkdir(a,0);
- sprintf(b,"%s/zz",a);
- sprintf(c,"%s/xx",a);
- make_file2(b,c,2000000);
- sprintf(d,"%s/aa",a);
- make_file2(d,NULL,500000000);
- dump_directory_tree(mountpt);
-
- printf("Umount/mount attempt full\n");
- yaffs_unmount(mountpt);
-
- SetCheckpointReservedBlocks(10);
- yaffs_mount(mountpt);
-
- printf("unlink small file\n");
- yaffs_unlink(c);
- dump_directory_tree(mountpt);
-
- printf("Umount/mount attempt\n");
- yaffs_unmount(mountpt);
- yaffs_mount(mountpt);
-
- for(j = 0; j < 500; j++){
- printf("***** touch %d\n",j);
- dump_directory_tree(mountpt);
- yaffs_touch(b);
- yaffs_unmount(mountpt);
- yaffs_mount(mountpt);
- }
-
- for(j = 0; j < 500; j++){
- printf("***** touch %d\n",j);
- dump_directory_tree(mountpt);
- yaffs_touch(b);
- yaffs_unmount(mountpt);
- yaffs_mount(mountpt);
- }
-}
-
-void huge_array_test(const char *mountpt,int n)
-{
-
- char a[50];
-
-
- int i;
- int j;
- int h;
-
- int fnum;
-
- sprintf(a,"mount point %s",mountpt);
-
-
-
- yaffs_StartUp();
-
- yaffs_mount(mountpt);
-
- while(n>0){
- n--;
- fnum = 0;
- printf("\n\n START run\n\n");
- while(yaffs_freespace(mountpt) > 25000000){
- sprintf(a,"%s/file%d",mountpt,fnum);
- fnum++;
- printf("create file %s\n",a);
- create_file_of_size(a,10000000);
- printf("verifying file %s\n",a);
- verify_file_of_size(a,10000000);
- }
-
- printf("\n\n verification/deletion\n\n");
-
- for(i = 0; i < fnum; i++){
- sprintf(a,"%s/file%d",mountpt,i);
- printf("verifying file %s\n",a);
- verify_file_of_size(a,10000000);
- printf("deleting file %s\n",a);
- yaffs_unlink(a);
- }
- printf("\n\n done \n\n");
-
-
- }
-}
-
-
-void random_write(int h)
-{
- static char buffer[12000];
- int n;
-
- n = random() & 0x1FFF;
- yaffs_write(h,buffer,n);
-}
-
-void random_seek(int h)
-{
- int n;
- n = random() & 0xFFFFF;
- yaffs_lseek(h,n,SEEK_SET);
-}
-
-void random_truncate(int h, char * name)
-{
- int n;
- int flen;
- n = random() & 0xFFFFF;
- flen = yaffs_lseek(h,0,SEEK_END);
- if(n > flen)
- n = flen / 2;
- yaffs_truncate(name,n);
- yaffs_lseek(h,n,SEEK_SET);
-}
-
-
-#define NSMALLFILES 10
-void random_small_file_test(const char *mountpt,int iterations)
-{
-
- char a[NSMALLFILES][50];
-
-
- int i;
- int n;
- int j;
- int h[NSMALLFILES];
- int r;
- int fnum;
-
-
- yaffs_StartUp();
-
- yaffs_mount(mountpt);
-
- for(i = 0; i < NSMALLFILES; i++){
- h[i]=-1;
- strcpy(a[i],"");
- }
-
- for(n = 0; n < iterations; n++){
-
- for(i = 0; i < NSMALLFILES; i++) {
- r = random();
-
- if(strlen(a[i]) == 0){
- sprintf(a[i],"%s/%dx%d",mountpt,n,i);
- h[i] = yaffs_open(a,O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
- }
-
- if(h[i] < -1)
- printf("Could not open yaffs file %d %d error %d\n",n,i,h[i]);
- else {
- r = r & 7;
- switch(r){
- case 0:
- case 1:
- case 2:
- random_write(h[i]);
- break;
- case 3:
- random_truncate(h[i],a[i]);
- break;
- case 4:
- case 5: random_seek(h[i]);
- break;
- case 6:
- yaffs_close(h[i]);
- h[i] = -1;
- break;
- case 7:
- yaffs_close(h[i]);
- yaffs_unlink(a[i]);
- strcpy(a[i],"");
- h[i] = -1;
- }
- }
- }
-
- }
-
- for(i = 0; i < NSMALLFILES; i++)
- yaffs_close(h[i]);
-
- yaffs_unmount(mountpt);
-}
-
-
-
-int main(int argc, char *argv[])
-{
- //return long_test(argc,argv);
-
- //return cache_read_test();
-
- resize_stress_test_no_grow("/flash/flash",20);
-
- //huge_directory_test_on_path("/ram2k");
-
- //yaffs_backward_scan_test("/flash/flash");
- // yaffs_device_flush_test("/flash/flash");
-
-
- //scan_pattern_test("/flash",10000,10);
- //short_scan_test("/flash/flash",40000,200);
- //small_mount_test("/flash/flash",1000);
- //small_overwrite_test("/flash/flash",1000);
- //checkpoint_fill_test("/flash/flash",20);
- // random_small_file_test("/flash/flash",10000);
- // huge_array_test("/flash/flash",10);
-
-
-
-
- //long_test_on_path("/ram2k");
- // long_test_on_path("/flash");
- //simple_rw_test("/flash/flash");
- //fill_disk_test("/flash/flash");
- // rename_over_test("/flash");
- //lookup_test("/flash");
- //freespace_test("/flash/flash");
-
- //link_test("/flash/flash");
-
-
-
-
- // cache_bypass_bug_test();
-
- //free_space_check();
-
- //check_resize_gc_bug("/flash");
-
- return 0;
-
-}
+++ /dev/null
-# Makefile for YAFFS direct test
-#
-#
-# YAFFS: Yet another Flash File System. A NAND-flash specific file system.
-#
-# Copyright (C) 2003 Aleph One Ltd.
-#
-#
-# Created by Charles Manning <charles@aleph1.co.uk>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-# NB Warning this Makefile does not include header dependencies.
-#
-# $Id: Makefile,v 1.1 2007/10/16 00:46:33 charles Exp $
-
-#EXTRA_COMPILE_FLAGS = -DYAFFS_IGNORE_TAGS_ECC
-
-CFLAGS = -Wall -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM -DCONFIG_YAFFS_YAFFS2 -g $(EXTRA_COMPILE_FLAGS) -DNO_Y_INLINE
-CFLAGS+= -fstack-check -O0
-
-#CFLAGS+= -Wshadow -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Wmissing-declarations
-#CFLAGS+= -Wmissing-prototypes -Wredundant-decls -Wnested-externs -Winline
-
-
-FSXTESTOBJS = yaffs_fsx.o yaffscfg2k.o yaffs_ecc.o yaffs_fileem2k.o yaffsfs.o yaffs_guts.o \
- yaffs_packedtags1.o yaffs_ramdisk.o yaffs_ramem2k.o \
- yaffs_tagscompat.o yaffs_packedtags2.o yaffs_tagsvalidity.o yaffs_nand.o \
- yaffs_checkptrw.o yaffs_qsort.o \
-# yaffs_checkptrwtest.o\
-
-
-BOOTTESTOBJS = bootldtst.o yboot.o yaffs_fileem.o nand_ecc.o
-
-#ALLOBJS = dtest.o nand_ecc.o yaffscfg.o yaffs_fileem.o yaffsfs.o yaffs_ramdisk.o bootldtst.o yboot.o yaffs_ramem2k.o
-
-ALLOBJS = $(FSXTESTOBJS) $(BOOTTESTOBJS)
-
-YAFFSSYMLINKS = devextras.h yaffs_ecc.c yaffs_ecc.h yaffs_guts.c yaffs_guts.h yaffsinterface.h yportenv.h yaffs_tagscompat.c yaffs_tagscompat.h \
- yaffs_packedtags1.c yaffs_packedtags1.h yaffs_packedtags2.c yaffs_packedtags2.h yaffs_nandemul2k.h \
- yaffs_nand.c yaffs_nand.h \
- yaffs_tagsvalidity.c yaffs_tagsvalidity.h yaffs_checkptrw.h yaffs_checkptrw.c \
- yaffs_qsort.c yaffs_qsort.h
-
-YAFFSDIRECTSYMLINKS = yaffscfg2k.c yaffs_fileem2k.c yaffsfs.c yaffs_flashif.h \
- yaffs_fileem2k.h yaffsfs.h yaffs_malloc.h yaffs_ramdisk.h ydirectenv.h \
- yaffscfg.h yaffs_fileem.c yaffs_flashif.c yaffs_ramdisk.c yaffs_ramem2k.c
-
-
-
-#all: fsxtest boottest
-
-all: fsxtest
-
-$(ALLOBJS): %.o: %.c
- gcc -c $(CFLAGS) $< -o $@
-
-$(YAFFSSYMLINKS):
- ln -s ../../$@ $@
-
-$(YAFFSDIRECTSYMLINKS):
- ln -s ../$@ $@
-
-fsxtest: $(YAFFSSYMLINKS) $(YAFFSDIRECTSYMLINKS) $(FSXTESTOBJS)
- gcc -o $@ $(FSXTESTOBJS)
-
-
-boottest: $(SYMLINKS) $(BOOTTESTOBJS)
- gcc -o $@ $(BOOTTESTOBJS)
-
-
-clean:
- rm -f $(ALLOBJS) core
+++ /dev/null
-NB THis directory uses a hacked version of fsx.c which is released under
-Apple Public Source License.
-
-From what I have been able to determine, it is legally OK to release a hacked
-version for the purposes of testing.
-
-If anyone knows otherwise, please contact me: manningc2@actrix.gen.nz
+++ /dev/null
-/*
- * Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.2 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- *
- * WARNING--WARNING--WARNING
- * This is not the original fsx.c. It has been modified to run with
- * yaffs direct. Seek out the original fsx.c if you want to do anything
- * else.
- *
- *
- *
- * File: fsx.c
- * Author: Avadis Tevanian, Jr.
- *
- * File system exerciser.
- *
- * Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
- *
- * Various features from Joe Sokol, Pat Dirks, and Clark Warner.
- *
- * Small changes to work under Linux -- davej@suse.de
- *
- * Sundry porting patches from Guy Harris 12/2001
- *
- * Checks for mmap last-page zero fill.
- *
- * Modified heavily by Charles Manning to exercise via the
- * yaffs direct interface.
- *
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#ifdef _UWIN
-# include <sys/param.h>
-# include <limits.h>
-# include <time.h>
-# include <strings.h>
-#endif
-#include <fcntl.h>
-#include <sys/mman.h>
-#ifndef MAP_FILE
-# define MAP_FILE 0
-#endif
-#include <limits.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdarg.h>
-#include <errno.h>
-
-#include "yaffsfs.h"
-
-#define NUMPRINTCOLUMNS 32 /* # columns of data to print on each line */
-
-/*
- * A log entry is an operation and a bunch of arguments.
- */
-
-struct log_entry {
- int operation;
- int args[3];
-};
-
-#define LOGSIZE 1000
-
-struct log_entry oplog[LOGSIZE]; /* the log */
-int logptr = 0; /* current position in log */
-int logcount = 0; /* total ops */
-
-/*
- * Define operations
- */
-
-#define OP_READ 1
-#define OP_WRITE 2
-#define OP_TRUNCATE 3
-#define OP_CLOSEOPEN 4
-#define OP_MAPREAD 5
-#define OP_MAPWRITE 6
-#define OP_SKIPPED 7
-
-int page_size;
-int page_mask;
-
-char *original_buf; /* a pointer to the original data */
-char *good_buf; /* a pointer to the correct data */
-char *temp_buf; /* a pointer to the current data */
-char *fname; /* name of our test file */
-int fd; /* fd for our test file */
-
-off_t file_size = 0;
-off_t biggest = 0;
-char state[256];
-unsigned long testcalls = 0; /* calls to function "test" */
-
-unsigned long simulatedopcount = 0; /* -b flag */
-int closeprob = 0; /* -c flag */
-int debug = 0; /* -d flag */
-unsigned long debugstart = 0; /* -D flag */
-unsigned long maxfilelen = 256 * 1024; /* -l flag */
-int sizechecks = 1; /* -n flag disables them */
-int maxoplen = 64 * 1024; /* -o flag */
-int quiet = 0; /* -q flag */
-unsigned long progressinterval = 0; /* -p flag */
-int readbdy = 1; /* -r flag */
-int style = 0; /* -s flag */
-int truncbdy = 1; /* -t flag */
-int writebdy = 1; /* -w flag */
-long monitorstart = -1; /* -m flag */
-long monitorend = -1; /* -m flag */
-int lite = 0; /* -L flag */
-long numops = -1; /* -N flag */
-int randomoplen = 1; /* -O flag disables it */
-int seed = 1; /* -S flag */
-
-int mapped_writes = 0; /* yaffs direct does not support mmapped files */
-int mapped_reads = 0;
-
-int fsxgoodfd = 0;
-FILE * fsxlogf = NULL;
-int badoff = -1;
-int closeopen = 0;
-
-
-void
-vwarnc(code, fmt, ap)
- int code;
- const char *fmt;
- va_list ap;
-{
- fprintf(stderr, "fsx: ");
- if (fmt != NULL) {
- vfprintf(stderr, fmt, ap);
- fprintf(stderr, ": ");
- }
- fprintf(stderr, "%s\n", strerror(code));
-}
-
-
-void
-warn(const char * fmt, ...)
-{
- va_list ap;
- va_start(ap, fmt);
- vwarnc(errno, fmt, ap);
- va_end(ap);
-}
-
-
-void
-prt(char *fmt, ...)
-{
- va_list args;
-
- va_start(args, fmt);
- vfprintf(stdout, fmt, args);
- if (fsxlogf)
- vfprintf(fsxlogf, fmt, args);
- va_end(args);
-}
-
-void
-prterr(char *prefix)
-{
- prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
-}
-
-
-void
-log4(int operation, int arg0, int arg1, int arg2)
-{
- struct log_entry *le;
-
- le = &oplog[logptr];
- le->operation = operation;
- if (closeopen)
- le->operation = ~ le->operation;
- le->args[0] = arg0;
- le->args[1] = arg1;
- le->args[2] = arg2;
- logptr++;
- logcount++;
- if (logptr >= LOGSIZE)
- logptr = 0;
-}
-
-
-void
-logdump(void)
-{
- int i, count, down;
- struct log_entry *lp;
-
- prt("LOG DUMP (%d total operations):\n", logcount);
- if (logcount < LOGSIZE) {
- i = 0;
- count = logcount;
- } else {
- i = logptr;
- count = LOGSIZE;
- }
- for ( ; count > 0; count--) {
- int opnum;
-
- opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
- prt("%d(%d mod 256): ", opnum, opnum%256);
- lp = &oplog[i];
- if ((closeopen = lp->operation < 0))
- lp->operation = ~ lp->operation;
-
- switch (lp->operation) {
- case OP_MAPREAD:
- prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
- lp->args[0], lp->args[0] + lp->args[1] - 1,
- lp->args[1]);
- if (badoff >= lp->args[0] && badoff <
- lp->args[0] + lp->args[1])
- prt("\t***RRRR***");
- break;
- case OP_MAPWRITE:
- prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
- lp->args[0], lp->args[0] + lp->args[1] - 1,
- lp->args[1]);
- if (badoff >= lp->args[0] && badoff <
- lp->args[0] + lp->args[1])
- prt("\t******WWWW");
- break;
- case OP_READ:
- prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
- lp->args[0], lp->args[0] + lp->args[1] - 1,
- lp->args[1]);
- if (badoff >= lp->args[0] &&
- badoff < lp->args[0] + lp->args[1])
- prt("\t***RRRR***");
- break;
- case OP_WRITE:
- prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
- lp->args[0], lp->args[0] + lp->args[1] - 1,
- lp->args[1]);
- if (lp->args[0] > lp->args[2])
- prt(" HOLE");
- else if (lp->args[0] + lp->args[1] > lp->args[2])
- prt(" EXTEND");
- if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
- badoff < lp->args[0] + lp->args[1])
- prt("\t***WWWW");
- break;
- case OP_TRUNCATE:
- down = lp->args[0] < lp->args[1];
- prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
- down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
- if (badoff >= lp->args[!down] &&
- badoff < lp->args[!!down])
- prt("\t******WWWW");
- break;
- case OP_SKIPPED:
- prt("SKIPPED (no operation)");
- break;
- default:
- prt("BOGUS LOG ENTRY (operation code = %d)!",
- lp->operation);
- }
- if (closeopen)
- prt("\n\t\tCLOSE/OPEN");
- prt("\n");
- i++;
- if (i == LOGSIZE)
- i = 0;
- }
-}
-
-
-void
-save_buffer(char *buffer, off_t bufferlength, int fd)
-{
- off_t ret;
- ssize_t byteswritten;
-
- if (fd <= 0 || bufferlength == 0)
- return;
-
- if (bufferlength > SSIZE_MAX) {
- prt("fsx flaw: overflow in save_buffer\n");
- exit(67);
- }
- if (lite) {
- off_t size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
- if (size_by_seek == (off_t)-1)
- prterr("save_buffer: lseek eof");
- else if (bufferlength > size_by_seek) {
- warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
- (unsigned long long)bufferlength);
- bufferlength = size_by_seek;
- }
- }
-
- ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
- if (ret == (off_t)-1)
- prterr("save_buffer: lseek 0");
-
- byteswritten = yaffs_write(fd, buffer, (size_t)bufferlength);
- if (byteswritten != bufferlength) {
- if (byteswritten == -1)
- prterr("save_buffer write");
- else
- warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
- (unsigned)byteswritten,
- (unsigned long long)bufferlength);
- }
-}
-
-
-void
-report_failure(int status)
-{
- logdump();
-
- if (fsxgoodfd) {
- if (good_buf) {
- save_buffer(good_buf, file_size, fsxgoodfd);
- prt("Correct content saved for comparison\n");
- prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
- fname, fname);
- }
- close(fsxgoodfd);
- }
- prt("Exiting with %d\n",status);
- exit(status);
-}
-
-
-#define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
- *(((unsigned char *)(cp)) + 1)))
-
-void
-check_buffers(unsigned offset, unsigned size)
-{
- unsigned char c, t;
- unsigned i = 0;
- unsigned n = 0;
- unsigned op = 0;
- unsigned bad = 0;
-
- if (memcmp(good_buf + offset, temp_buf, size) != 0) {
- prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
- offset, size);
- prt("OFFSET\tGOOD\tBAD\tRANGE\n");
- while (size > 0) {
- c = good_buf[offset];
- t = temp_buf[i];
- if (c != t) {
- if (n == 0) {
- bad = short_at(&temp_buf[i]);
- prt("0x%5x\t0x%04x\t0x%04x", offset,
- short_at(&good_buf[offset]), bad);
- op = temp_buf[offset & 1 ? i+1 : i];
- }
- n++;
- badoff = offset;
- }
- offset++;
- i++;
- size--;
- }
- if (n) {
- prt("\t0x%5x\n", n);
- if (bad)
- prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
- else
- prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
- } else
- prt("????????????????\n");
- report_failure(110);
- }
-}
-
-
-void
-check_size(void)
-{
- struct yaffs_stat statbuf;
- off_t size_by_seek;
-
- if (yaffs_fstat(fd, &statbuf)) {
- prterr("check_size: fstat");
- statbuf.st_size = -1;
- }
- size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
- if (file_size != statbuf.st_size || file_size != size_by_seek) {
- prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
- (unsigned long long)file_size,
- (unsigned long long)statbuf.st_size,
- (unsigned long long)size_by_seek);
- report_failure(120);
- }
-}
-
-
-void
-check_trunc_hack(void)
-{
- struct yaffs_stat statbuf;
-
- yaffs_truncate(fd, (off_t)0);
- yaffs_truncate(fd, (off_t)100000);
- yaffs_fstat(fd, &statbuf);
- if (statbuf.st_size != (off_t)100000) {
- prt("no extend on truncate! not posix!\n");
- exit(130);
- }
- yaffs_truncate(fd, (off_t)0);
-}
-
-
-void
-doread(unsigned offset, unsigned size)
-{
- off_t ret;
- unsigned iret;
-
- offset -= offset % readbdy;
- if (size == 0) {
- if (!quiet && testcalls > simulatedopcount)
- prt("skipping zero size read\n");
- log4(OP_SKIPPED, OP_READ, offset, size);
- return;
- }
- if (size + offset > file_size) {
- if (!quiet && testcalls > simulatedopcount)
- prt("skipping seek/read past end of file\n");
- log4(OP_SKIPPED, OP_READ, offset, size);
- return;
- }
-
- log4(OP_READ, offset, size, 0);
-
- if (testcalls <= simulatedopcount)
- return;
-
- if (!quiet && ((progressinterval &&
- testcalls % progressinterval == 0) ||
- (debug &&
- (monitorstart == -1 ||
- (offset + size > monitorstart &&
- (monitorend == -1 || offset <= monitorend))))))
- prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
- offset, offset + size - 1, size);
- ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
- if (ret == (off_t)-1) {
- prterr("doread: lseek");
- report_failure(140);
- }
- iret = yaffs_read(fd, temp_buf, size);
- if (iret != size) {
- if (iret == -1)
- prterr("doread: read");
- else
- prt("short read: 0x%x bytes instead of 0x%x\n",
- iret, size);
- report_failure(141);
- }
- check_buffers(offset, size);
-}
-
-
-
-
-
-void
-gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
-{
- while (size--) {
- good_buf[offset] = testcalls % 256;
- if (offset % 2)
- good_buf[offset] += original_buf[offset];
- offset++;
- }
-}
-
-
-void
-dowrite(unsigned offset, unsigned size)
-{
- off_t ret;
- unsigned iret;
-
- offset -= offset % writebdy;
- if (size == 0) {
- if (!quiet && testcalls > simulatedopcount)
- prt("skipping zero size write\n");
- log4(OP_SKIPPED, OP_WRITE, offset, size);
- return;
- }
-
- log4(OP_WRITE, offset, size, file_size);
-
- gendata(original_buf, good_buf, offset, size);
- if (file_size < offset + size) {
- if (file_size < offset)
- memset(good_buf + file_size, '\0', offset - file_size);
- file_size = offset + size;
- if (lite) {
- warn("Lite file size bug in fsx!");
- report_failure(149);
- }
- }
-
- if (testcalls <= simulatedopcount)
- return;
-
- if (!quiet && ((progressinterval &&
- testcalls % progressinterval == 0) ||
- (debug &&
- (monitorstart == -1 ||
- (offset + size > monitorstart &&
- (monitorend == -1 || offset <= monitorend))))))
- prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
- offset, offset + size - 1, size);
- ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
- if (ret == (off_t)-1) {
- prterr("dowrite: lseek");
- report_failure(150);
- }
- iret = yaffs_write(fd, good_buf + offset, size);
- if (iret != size) {
- if (iret == -1)
- prterr("dowrite: write");
- else
- prt("short write: 0x%x bytes instead of 0x%x\n",
- iret, size);
- report_failure(151);
- }
-}
-
-
-
-void
-dotruncate(unsigned size)
-{
- int oldsize = file_size;
-
- size -= size % truncbdy;
- if (size > biggest) {
- biggest = size;
- if (!quiet && testcalls > simulatedopcount)
- prt("truncating to largest ever: 0x%x\n", size);
- }
-
- log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
-
- if (size > file_size)
- memset(good_buf + file_size, '\0', size - file_size);
- file_size = size;
-
- if (testcalls <= simulatedopcount)
- return;
-
- if ((progressinterval && testcalls % progressinterval == 0) ||
- (debug && (monitorstart == -1 || monitorend == -1 ||
- size <= monitorend)))
- prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
- if (yaffs_truncate(fd, (off_t)size) == -1) {
- prt("ftruncate1: %x\n", size);
- prterr("dotruncate: ftruncate");
- report_failure(160);
- }
-}
-
-
-void
-writefileimage()
-{
- ssize_t iret;
-
- if (yaffs_lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
- prterr("writefileimage: lseek");
- report_failure(171);
- }
- iret = yaffs_write(fd, good_buf, file_size);
- if ((off_t)iret != file_size) {
- if (iret == -1)
- prterr("writefileimage: write");
- else
- prt("short write: 0x%x bytes instead of 0x%llx\n",
- iret, (unsigned long long)file_size);
- report_failure(172);
- }
- if (lite ? 0 : yaffs_truncate(fd, file_size) == -1) {
- prt("ftruncate2: %llx\n", (unsigned long long)file_size);
- prterr("writefileimage: ftruncate");
- report_failure(173);
- }
-}
-
-
-void
-docloseopen(void)
-{
- if (testcalls <= simulatedopcount)
- return;
-
- if (debug)
- prt("%lu close/open\n", testcalls);
- if (yaffs_close(fd)) {
- prterr("docloseopen: close");
- report_failure(180);
- }
- fd = yaffs_open(fname, O_RDWR, 0);
- if (fd < 0) {
- prterr("docloseopen: open");
- report_failure(181);
- }
-}
-
-
-void
-test(void)
-{
- unsigned long offset;
- unsigned long size = maxoplen;
- unsigned long rv = random();
- unsigned long op = rv % (3 + !lite + mapped_writes);
-
- /* turn off the map read if necessary */
-
- if (op == 2 && !mapped_reads)
- op = 0;
-
- if (simulatedopcount > 0 && testcalls == simulatedopcount)
- writefileimage();
-
- testcalls++;
-
- if (closeprob)
- closeopen = (rv >> 3) < (1 << 28) / closeprob;
-
- if (debugstart > 0 && testcalls >= debugstart)
- debug = 1;
-
- if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
- prt("%lu...\n", testcalls);
-
- /*
- * READ: op = 0
- * WRITE: op = 1
- * MAPREAD: op = 2
- * TRUNCATE: op = 3
- * MAPWRITE: op = 3 or 4
- */
- if (lite ? 0 : op == 3 && (style & 1) == 0) /* vanilla truncate? */
- dotruncate(random() % maxfilelen);
- else {
- if (randomoplen)
- size = random() % (maxoplen+1);
- if (lite ? 0 : op == 3)
- dotruncate(size);
- else {
- offset = random();
- if (op == 1 || op == (lite ? 3 : 4)) {
- offset %= maxfilelen;
- if (offset + size > maxfilelen)
- size = maxfilelen - offset;
- dowrite(offset, size);
- } else {
- if (file_size)
- offset %= file_size;
- else
- offset = 0;
- if (offset + size > file_size)
- size = file_size - offset;
- doread(offset, size);
- }
- }
- }
- if (sizechecks && testcalls > simulatedopcount)
- check_size();
- if (closeopen)
- docloseopen();
-}
-
-
-void
-cleanup(sig)
- int sig;
-{
- if (sig)
- prt("signal %d\n", sig);
- prt("testcalls = %lu\n", testcalls);
- exit(sig);
-}
-
-
-void
-usage(void)
-{
- fprintf(stdout, "usage: %s",
- "fsx [-dnqLOW] [-b opnum] [-c Prob] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
- -b opnum: beginning operation number (default 1)\n\
- -c P: 1 in P chance of file close+open at each op (default infinity)\n\
- -d: debug output for all operations\n\
- -l flen: the upper bound on file size (default 262144)\n\
- -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
- -n: no verifications of file size\n\
- -o oplen: the upper bound on operation size (default 65536)\n\
- -p progressinterval: debug output at specified operation interval\n\
- -q: quieter operation\n\
- -r readbdy: 4096 would make reads page aligned (default 1)\n\
- -s style: 1 gives smaller truncates (default 0)\n\
- -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
- -w writebdy: 4096 would make writes page aligned (default 1)\n\
- -D startingop: debug output starting at specified operation\n\
- -L: fsxLite - no file creations & no file size changes\n\
- -N numops: total # operations to do (default infinity)\n\
- -O: use oplen (see -o flag) for every op (default random)\n\
- -P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
- -S seed: for random # generator (default 1) 0 gets timestamp\n\
- fname: this filename is REQUIRED (no default)\n");
- exit(90);
-}
-
-
-int
-getnum(char *s, char **e)
-{
- int ret = -1;
-
- *e = (char *) 0;
- ret = strtol(s, e, 0);
- if (*e)
- switch (**e) {
- case 'b':
- case 'B':
- ret *= 512;
- *e = *e + 1;
- break;
- case 'k':
- case 'K':
- ret *= 1024;
- *e = *e + 1;
- break;
- case 'm':
- case 'M':
- ret *= 1024*1024;
- *e = *e + 1;
- break;
- case 'w':
- case 'W':
- ret *= 4;
- *e = *e + 1;
- break;
- }
- return (ret);
-}
-
-
-int
-main(int argc, char **argv)
-{
- int i, style, ch;
- char *endp;
- char goodfile[1024];
- char logfile[1024];
-
- goodfile[0] = 0;
- logfile[0] = 0;
-
- page_size = getpagesize();
- page_mask = page_size - 1;
-
- setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
-
- while ((ch = getopt(argc, argv, "b:c:dl:m:no:p:qr:s:t:w:D:LN:OP:RS:W"))
- != EOF)
- switch (ch) {
- case 'b':
- simulatedopcount = getnum(optarg, &endp);
- if (!quiet)
- fprintf(stdout, "Will begin at operation %ld\n",
- simulatedopcount);
- if (simulatedopcount == 0)
- usage();
- simulatedopcount -= 1;
- break;
- case 'c':
- closeprob = getnum(optarg, &endp);
- if (!quiet)
- fprintf(stdout,
- "Chance of close/open is 1 in %d\n",
- closeprob);
- if (closeprob <= 0)
- usage();
- break;
- case 'd':
- debug = 1;
- break;
- case 'l':
- maxfilelen = getnum(optarg, &endp);
- if (maxfilelen <= 0)
- usage();
- break;
- case 'm':
- monitorstart = getnum(optarg, &endp);
- if (monitorstart < 0)
- usage();
- if (!endp || *endp++ != ':')
- usage();
- monitorend = getnum(endp, &endp);
- if (monitorend < 0)
- usage();
- if (monitorend == 0)
- monitorend = -1; /* aka infinity */
- debug = 1;
- case 'n':
- sizechecks = 0;
- break;
- case 'o':
- maxoplen = getnum(optarg, &endp);
- if (maxoplen <= 0)
- usage();
- break;
- case 'p':
- progressinterval = getnum(optarg, &endp);
- if (progressinterval < 0)
- usage();
- break;
- case 'q':
- quiet = 1;
- break;
- case 'r':
- readbdy = getnum(optarg, &endp);
- if (readbdy <= 0)
- usage();
- break;
- case 's':
- style = getnum(optarg, &endp);
- if (style < 0 || style > 1)
- usage();
- break;
- case 't':
- truncbdy = getnum(optarg, &endp);
- if (truncbdy <= 0)
- usage();
- break;
- case 'w':
- writebdy = getnum(optarg, &endp);
- if (writebdy <= 0)
- usage();
- break;
- case 'D':
- debugstart = getnum(optarg, &endp);
- if (debugstart < 1)
- usage();
- break;
- case 'L':
- lite = 1;
- break;
- case 'N':
- numops = getnum(optarg, &endp);
- if (numops < 0)
- usage();
- break;
- case 'O':
- randomoplen = 0;
- break;
- case 'P':
- strncpy(goodfile, optarg, sizeof(goodfile));
- strcat(goodfile, "/");
- strncpy(logfile, optarg, sizeof(logfile));
- strcat(logfile, "/");
- break;
- case 'R':
- mapped_reads = 0;
- break;
- case 'S':
- seed = getnum(optarg, &endp);
- if (seed == 0)
- seed = time(0) % 10000;
- if (!quiet)
- fprintf(stdout, "Seed set to %d\n", seed);
- if (seed < 0)
- usage();
- break;
- case 'W':
- mapped_writes = 0;
- if (!quiet)
- fprintf(stdout, "mapped writes DISABLED\n");
- break;
-
- default:
- usage();
- /* NOTREACHED */
- }
- argc -= optind;
- argv += optind;
-
- yaffs_StartUp();
- yaffs_mount("/flash/flash");
-
- fname = "/flash/flash/fsxdata";
-
- signal(SIGHUP, cleanup);
- signal(SIGINT, cleanup);
- signal(SIGPIPE, cleanup);
- signal(SIGALRM, cleanup);
- signal(SIGTERM, cleanup);
- signal(SIGXCPU, cleanup);
- signal(SIGXFSZ, cleanup);
- signal(SIGVTALRM, cleanup);
- signal(SIGUSR1, cleanup);
- signal(SIGUSR2, cleanup);
-
- initstate(seed, state, 256);
- setstate(state);
- fd = yaffs_open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);
- if (fd < 0) {
- prterr(fname);
- exit(91);
- }
- strncat(goodfile, fname, 256);
- strcat (goodfile, ".fsxgood");
- fsxgoodfd = yaffs_open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
- if (fsxgoodfd < 0) {
- prterr(goodfile);
- exit(92);
- }
- strncat(logfile, "fsx", 256);
- strcat (logfile, ".fsxlog");
- fsxlogf = fopen(logfile, "w");
- if (fsxlogf == NULL) {
- prterr(logfile);
- exit(93);
- }
- if (lite) {
- off_t ret;
- file_size = maxfilelen = yaffs_lseek(fd, (off_t)0, SEEK_END);
- if (file_size == (off_t)-1) {
- prterr(fname);
- warn("main: lseek eof");
- exit(94);
- }
- ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
- if (ret == (off_t)-1) {
- prterr(fname);
- warn("main: lseek 0");
- exit(95);
- }
- }
- original_buf = (char *) malloc(maxfilelen);
- for (i = 0; i < maxfilelen; i++)
- original_buf[i] = random() % 256;
- good_buf = (char *) malloc(maxfilelen);
- memset(good_buf, '\0', maxfilelen);
- temp_buf = (char *) malloc(maxoplen);
- memset(temp_buf, '\0', maxoplen);
- if (lite) { /* zero entire existing file */
- ssize_t written;
-
- written = yaffs_write(fd, good_buf, (size_t)maxfilelen);
- if (written != maxfilelen) {
- if (written == -1) {
- prterr(fname);
- warn("main: error on write");
- } else
- warn("main: short write, 0x%x bytes instead of 0x%x\n",
- (unsigned)written, maxfilelen);
- exit(98);
- }
- } else
- check_trunc_hack();
-
- while (numops == -1 || numops--)
- test();
-
- if (yaffs_close(fd)) {
- prterr("close");
- report_failure(99);
- }
-
- yaffs_close(fsxgoodfd);
-
- yaffs_unmount("flash/flash");
- prt("All operations completed A-OK!\n");
-
- exit(0);
- return 0;
-}
-
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * This provides a YAFFS nand emulation on a file.
- * This is only intended as test code to test persistence etc.
- */
-
-/* XXX U-BOOT XXX */
-#include <common.h>
-
-const char *yaffs_flashif_c_version = "$Id: yaffs_fileem.c,v 1.3 2007/02/14 01:09:06 wookey Exp $";
-
-
-#include "yportenv.h"
-
-#include "yaffs_flashif.h"
-#include "yaffs_guts.h"
-
-#include "devextras.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-
-
-#define SIZE_IN_MB 16
-
-#define BLOCK_SIZE (32 * 528)
-#define BLOCKS_PER_MEG ((1024*1024)/(32 * 512))
-
-
-
-typedef struct
-{
- __u8 data[528]; // Data + spare
-} yflash_Page;
-
-typedef struct
-{
- yflash_Page page[32]; // The pages in the block
-
-} yflash_Block;
-
-
-
-typedef struct
-{
- int handle;
- int nBlocks;
-} yflash_Device;
-
-static yflash_Device filedisk;
-
-static int CheckInit(yaffs_Device *dev)
-{
- static int initialised = 0;
-
- int i;
-
-
- int fSize;
- int written;
-
- yflash_Page p;
-
- if(initialised)
- {
- return YAFFS_OK;
- }
-
- initialised = 1;
-
-
- filedisk.nBlocks = (SIZE_IN_MB * 1024 * 1024)/(16 * 1024);
-
- filedisk.handle = open("yaffsemfile", O_RDWR | O_CREAT, S_IREAD | S_IWRITE);
-
- if(filedisk.handle < 0)
- {
- perror("Failed to open yaffs emulation file");
- return YAFFS_FAIL;
- }
-
-
- fSize = lseek(filedisk.handle,0,SEEK_END);
-
- if(fSize < SIZE_IN_MB * 1024 * 1024)
- {
- printf("Creating yaffs emulation file\n");
-
- lseek(filedisk.handle,0,SEEK_SET);
-
- memset(&p,0xff,sizeof(yflash_Page));
-
- for(i = 0; i < SIZE_IN_MB * 1024 * 1024; i+= 512)
- {
- written = write(filedisk.handle,&p,sizeof(yflash_Page));
-
- if(written != sizeof(yflash_Page))
- {
- printf("Write failed\n");
- return YAFFS_FAIL;
- }
- }
- }
-
- return 1;
-}
-
-int yflash_WriteChunkToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, const yaffs_Spare *spare)
-{
- int written;
-
- CheckInit(dev);
-
-
-
- if(data)
- {
- lseek(filedisk.handle,chunkInNAND * 528,SEEK_SET);
- written = write(filedisk.handle,data,512);
-
- if(written != 512) return YAFFS_FAIL;
- }
-
- if(spare)
- {
- lseek(filedisk.handle,chunkInNAND * 528 + 512,SEEK_SET);
- written = write(filedisk.handle,spare,16);
-
- if(written != 16) return YAFFS_FAIL;
- }
-
-
- return YAFFS_OK;
-
-}
-
-
-int yflash_ReadChunkFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_Spare *spare)
-{
- int nread;
-
- CheckInit(dev);
-
-
-
- if(data)
- {
- lseek(filedisk.handle,chunkInNAND * 528,SEEK_SET);
- nread = read(filedisk.handle,data,512);
-
- if(nread != 512) return YAFFS_FAIL;
- }
-
- if(spare)
- {
- lseek(filedisk.handle,chunkInNAND * 528 + 512,SEEK_SET);
- nread= read(filedisk.handle,spare,16);
-
- if(nread != 16) return YAFFS_FAIL;
- }
-
-
- return YAFFS_OK;
-
-}
-
-
-int yflash_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
-{
-
- int i;
-
- CheckInit(dev);
-
- if(blockNumber < 0 || blockNumber >= filedisk.nBlocks)
- {
- T(YAFFS_TRACE_ALWAYS,("Attempt to erase non-existant block %d\n",blockNumber));
- return YAFFS_FAIL;
- }
- else
- {
-
- yflash_Page pg;
-
- memset(&pg,0xff,sizeof(yflash_Page));
-
- lseek(filedisk.handle, blockNumber * 32 * 528, SEEK_SET);
-
- for(i = 0; i < 32; i++)
- {
- write(filedisk.handle,&pg,528);
- }
- return YAFFS_OK;
- }
-
-}
-
-int yflash_InitialiseNAND(yaffs_Device *dev)
-{
- dev->useNANDECC = 1; // force on useNANDECC which gets faked.
- // This saves us doing ECC checks.
-
- return YAFFS_OK;
-}
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * This provides a YAFFS nand emulation on a file for emulating 2kB pages.
- * This is only intended as test code to test persistence etc.
- */
-
-/* XXX U-BOOT XXX */
-#include <common.h>
-
-const char *yaffs_flashif_c_version = "$Id: yaffs_fileem2k.c,v 1.12 2007/02/14 01:09:06 wookey Exp $";
-
-
-#include "yportenv.h"
-
-#include "yaffs_flashif.h"
-#include "yaffs_guts.h"
-#include "devextras.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include "yaffs_fileem2k.h"
-#include "yaffs_packedtags2.h"
-
-//#define SIMULATE_FAILURES
-
-typedef struct
-{
- __u8 data[PAGE_SIZE]; // Data + spare
-} yflash_Page;
-
-typedef struct
-{
- yflash_Page page[PAGES_PER_BLOCK]; // The pages in the block
-
-} yflash_Block;
-
-
-
-#define MAX_HANDLES 20
-#define BLOCKS_PER_HANDLE 8000
-
-typedef struct
-{
- int handle[MAX_HANDLES];
- int nBlocks;
-} yflash_Device;
-
-static yflash_Device filedisk;
-
-int yaffs_testPartialWrite = 0;
-
-
-
-
-static __u8 localBuffer[PAGE_SIZE];
-
-static char *NToName(char *buf,int n)
-{
- sprintf(buf,"emfile%d",n);
- return buf;
-}
-
-static char dummyBuffer[BLOCK_SIZE];
-
-static int GetBlockFileHandle(int n)
-{
- int h;
- int requiredSize;
-
- char name[40];
- NToName(name,n);
- int fSize;
- int i;
-
- h = open(name, O_RDWR | O_CREAT, S_IREAD | S_IWRITE);
- if(h >= 0){
- fSize = lseek(h,0,SEEK_END);
- requiredSize = BLOCKS_PER_HANDLE * BLOCK_SIZE;
- if(fSize < requiredSize){
- for(i = 0; i < BLOCKS_PER_HANDLE; i++)
- if(write(h,dummyBuffer,BLOCK_SIZE) != BLOCK_SIZE)
- return -1;
-
- }
- }
-
- return h;
-
-}
-
-static int CheckInit(void)
-{
- static int initialised = 0;
- int h;
- int i;
-
-
- off_t fSize;
- off_t requiredSize;
- int written;
- int blk;
-
- yflash_Page p;
-
- if(initialised)
- {
- return YAFFS_OK;
- }
-
- initialised = 1;
-
- memset(dummyBuffer,0xff,sizeof(dummyBuffer));
-
-
- filedisk.nBlocks = SIZE_IN_MB * BLOCKS_PER_MB;
-
- for(i = 0; i < MAX_HANDLES; i++)
- filedisk.handle[i] = -1;
-
- for(i = 0,blk = 0; blk < filedisk.nBlocks; blk+=BLOCKS_PER_HANDLE,i++)
- filedisk.handle[i] = GetBlockFileHandle(i);
-
-
- return 1;
-}
-
-
-int yflash_GetNumberOfBlocks(void)
-{
- CheckInit();
-
- return filedisk.nBlocks;
-}
-
-int yflash_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, yaffs_ExtendedTags *tags)
-{
- int written;
- int pos;
- int h;
- int i;
- int nRead;
- int error;
-
- T(YAFFS_TRACE_MTD,(TSTR("write chunk %d data %x tags %x" TENDSTR),chunkInNAND,(unsigned)data, (unsigned)tags));
-
- CheckInit();
-
-
-
- if(data)
- {
- pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE;
- h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))];
-
- lseek(h,pos,SEEK_SET);
- nRead = read(h, localBuffer,dev->nDataBytesPerChunk);
- for(i = error = 0; i < dev->nDataBytesPerChunk && !error; i++){
- if(localBuffer[i] != 0xFF){
- printf("nand simulation: chunk %d data byte %d was %0x2\n",
- chunkInNAND,i,localBuffer[i]);
- error = 1;
- }
- }
-
- for(i = 0; i < dev->nDataBytesPerChunk; i++)
- localBuffer[i] &= data[i];
-
- if(memcmp(localBuffer,data,dev->nDataBytesPerChunk))
- printf("nand simulator: data does not match\n");
-
- lseek(h,pos,SEEK_SET);
- written = write(h,localBuffer,dev->nDataBytesPerChunk);
-
- if(yaffs_testPartialWrite){
- close(h);
- exit(1);
- }
-
-#ifdef SIMULATE_FAILURES
- if((chunkInNAND >> 6) == 100)
- written = 0;
-
- if((chunkInNAND >> 6) == 110)
- written = 0;
-#endif
-
-
- if(written != dev->nDataBytesPerChunk) return YAFFS_FAIL;
- }
-
- if(tags)
- {
- pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE + PAGE_DATA_SIZE ;
- h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))];
-
- lseek(h,pos,SEEK_SET);
-
- if( 0 && dev->isYaffs2)
- {
-
- written = write(h,tags,sizeof(yaffs_ExtendedTags));
- if(written != sizeof(yaffs_ExtendedTags)) return YAFFS_FAIL;
- }
- else
- {
- yaffs_PackedTags2 pt;
- yaffs_PackTags2(&pt,tags);
- __u8 * ptab = (__u8 *)&pt;
-
- nRead = read(h,localBuffer,sizeof(pt));
- for(i = error = 0; i < sizeof(pt) && !error; i++){
- if(localBuffer[i] != 0xFF){
- printf("nand simulation: chunk %d oob byte %d was %0x2\n",
- chunkInNAND,i,localBuffer[i]);
- error = 1;
- }
- }
-
- for(i = 0; i < sizeof(pt); i++)
- localBuffer[i] &= ptab[i];
-
- if(memcmp(localBuffer,&pt,sizeof(pt)))
- printf("nand sim: tags corruption\n");
-
- lseek(h,pos,SEEK_SET);
-
- written = write(h,localBuffer,sizeof(pt));
- if(written != sizeof(pt)) return YAFFS_FAIL;
- }
- }
-
-
- return YAFFS_OK;
-
-}
-
-int yaffs_CheckAllFF(const __u8 *ptr, int n)
-{
- while(n)
- {
- n--;
- if(*ptr!=0xFF) return 0;
- ptr++;
- }
- return 1;
-}
-
-
-static int fail300 = 1;
-static int fail320 = 1;
-
-static int failRead10 = 2;
-
-int yflash_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_ExtendedTags *tags)
-{
- int nread;
- int pos;
- int h;
-
- T(YAFFS_TRACE_MTD,(TSTR("read chunk %d data %x tags %x" TENDSTR),chunkInNAND,(unsigned)data, (unsigned)tags));
-
- CheckInit();
-
-
-
- if(data)
- {
-
- pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE;
- h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))];
- lseek(h,pos,SEEK_SET);
- nread = read(h,data,dev->nDataBytesPerChunk);
-
-
- if(nread != dev->nDataBytesPerChunk) return YAFFS_FAIL;
- }
-
- if(tags)
- {
- pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE + PAGE_DATA_SIZE;
- h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))];
- lseek(h,pos,SEEK_SET);
-
- if(0 && dev->isYaffs2)
- {
- nread= read(h,tags,sizeof(yaffs_ExtendedTags));
- if(nread != sizeof(yaffs_ExtendedTags)) return YAFFS_FAIL;
- if(yaffs_CheckAllFF((__u8 *)tags,sizeof(yaffs_ExtendedTags)))
- {
- yaffs_InitialiseTags(tags);
- }
- else
- {
- tags->chunkUsed = 1;
- }
- }
- else
- {
- yaffs_PackedTags2 pt;
- nread= read(h,&pt,sizeof(pt));
- yaffs_UnpackTags2(tags,&pt);
-#ifdef SIMULATE_FAILURES
- if((chunkInNAND >> 6) == 100) {
- if(fail300 && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR){
- tags->eccResult = YAFFS_ECC_RESULT_FIXED;
- fail300 = 0;
- }
-
- }
- if((chunkInNAND >> 6) == 110) {
- if(fail320 && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR){
- tags->eccResult = YAFFS_ECC_RESULT_FIXED;
- fail320 = 0;
- }
- }
-#endif
- if(failRead10>0 && chunkInNAND == 10){
- failRead10--;
- nread = 0;
- }
-
- if(nread != sizeof(pt)) return YAFFS_FAIL;
- }
- }
-
-
- return YAFFS_OK;
-
-}
-
-
-int yflash_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
-{
- int written;
- int h;
-
- yaffs_PackedTags2 pt;
-
- CheckInit();
-
- memset(&pt,0,sizeof(pt));
- h = filedisk.handle[(blockNo / ( BLOCKS_PER_HANDLE))];
- lseek(h,((blockNo % BLOCKS_PER_HANDLE) * dev->nChunksPerBlock) * PAGE_SIZE + PAGE_DATA_SIZE,SEEK_SET);
- written = write(h,&pt,sizeof(pt));
-
- if(written != sizeof(pt)) return YAFFS_FAIL;
-
-
- return YAFFS_OK;
-
-}
-
-int yflash_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
-{
-
- int i;
- int h;
-
- CheckInit();
-
- printf("erase block %d\n",blockNumber);
-
- if(blockNumber == 320)
- fail320 = 1;
-
- if(blockNumber < 0 || blockNumber >= filedisk.nBlocks)
- {
- T(YAFFS_TRACE_ALWAYS,("Attempt to erase non-existant block %d\n",blockNumber));
- return YAFFS_FAIL;
- }
- else
- {
-
- __u8 pg[PAGE_SIZE];
- int syz = PAGE_SIZE;
- int pos;
-
- memset(pg,0xff,syz);
-
-
- h = filedisk.handle[(blockNumber / ( BLOCKS_PER_HANDLE))];
- lseek(h,((blockNumber % BLOCKS_PER_HANDLE) * dev->nChunksPerBlock) * PAGE_SIZE,SEEK_SET);
- for(i = 0; i < dev->nChunksPerBlock; i++)
- {
- write(h,pg,PAGE_SIZE);
- }
- pos = lseek(h, 0,SEEK_CUR);
-
- return YAFFS_OK;
- }
-
-}
-
-int yflash_InitialiseNAND(yaffs_Device *dev)
-{
- CheckInit();
-
- return YAFFS_OK;
-}
-
-
-
-
-int yflash_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, yaffs_BlockState *state, int *sequenceNumber)
-{
- yaffs_ExtendedTags tags;
- int chunkNo;
-
- *sequenceNumber = 0;
-
- chunkNo = blockNo * dev->nChunksPerBlock;
-
- yflash_ReadChunkWithTagsFromNAND(dev,chunkNo,NULL,&tags);
- if(tags.blockBad)
- {
- *state = YAFFS_BLOCK_STATE_DEAD;
- }
- else if(!tags.chunkUsed)
- {
- *state = YAFFS_BLOCK_STATE_EMPTY;
- }
- else if(tags.chunkUsed)
- {
- *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
- *sequenceNumber = tags.sequenceNumber;
- }
- return YAFFS_OK;
-}
+++ /dev/null
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __FILEEM2K_H__
-#define __FILEEM2K_H__
-
-#if 1
-
-#define SIZE_IN_MB 128
-//#define SIZE_IN_MB 8000
-#define PAGE_DATA_SIZE (2048)
-#define PAGE_SPARE_SIZE (64)
-#define PAGE_SIZE (PAGE_DATA_SIZE + PAGE_SPARE_SIZE)
-#define PAGES_PER_BLOCK (64)
-#define BLOCK_DATA_SIZE (PAGE_DATA_SIZE * PAGES_PER_BLOCK)
-#define BLOCK_SIZE (PAGES_PER_BLOCK * (PAGE_SIZE))
-#define BLOCKS_PER_MB ((1024*1024)/BLOCK_DATA_SIZE)
-#define SIZE_IN_BLOCKS (BLOCKS_PER_MB * SIZE_IN_MB)
-
-#else
-
-#define SIZE_IN_MB 128
-#define PAGE_DATA_SIZE (512)
-#define SPARE_SIZE (16)
-#define PAGE_SIZE (PAGE_DATA_SIZE + SPARE_SIZE)
-#define PAGES_PER_BLOCK (32)
-#define BLOCK_DATA_SIZE (PAGE_SIZE * PAGES_PER_BLOCK)
-#define BLOCK_SIZE (PAGES_PER_BLOCK * (PAGE_SIZE))
-#define BLOCKS_PER_MB ((1024*1024)/BLOCK_DATA_SIZE)
-#define SIZE_IN_BLOCKS (BLOCKS_PER_MB * SIZE_IN_MB)
-
-#endif
-
-
-int yflash_GetNumberOfBlocks(void);
-
-#endif
-
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* XXX U-BOOT XXX */
-#include <common.h>
-
-const char *yaffs_flashif_c_version = "$Id: yaffs_flashif.c,v 1.3 2007/02/14 01:09:06 wookey Exp $";
-
-
-#include "yportenv.h"
-
-#include "yaffs_flashif.h"
-#include "yaffs_guts.h"
-#include "devextras.h"
-
-
-#define SIZE_IN_MB 16
-
-#define BLOCK_SIZE (32 * 528)
-#define BLOCKS_PER_MEG ((1024*1024)/(32 * 512))
-
-
-
-typedef struct
-{
- __u8 data[528]; // Data + spare
-} yflash_Page;
-
-typedef struct
-{
- yflash_Page page[32]; // The pages in the block
-
-} yflash_Block;
-
-
-
-typedef struct
-{
- yflash_Block **block;
- int nBlocks;
-} yflash_Device;
-
-static yflash_Device ramdisk;
-
-static int CheckInit(yaffs_Device *dev)
-{
- static int initialised = 0;
-
- int i;
- int fail = 0;
- int nAllocated = 0;
-
- if(initialised)
- {
- return YAFFS_OK;
- }
-
- initialised = 1;
-
-
- ramdisk.nBlocks = (SIZE_IN_MB * 1024 * 1024)/(16 * 1024);
-
- ramdisk.block = YMALLOC(sizeof(yflash_Block *) * ramdisk.nBlocks);
-
- if(!ramdisk.block) return 0;
-
- for(i=0; i <ramdisk.nBlocks; i++)
- {
- ramdisk.block[i] = NULL;
- }
-
- for(i=0; i <ramdisk.nBlocks && !fail; i++)
- {
- if((ramdisk.block[i] = YMALLOC(sizeof(yflash_Block))) == 0)
- {
- fail = 1;
- }
- else
- {
- yflash_EraseBlockInNAND(dev,i);
- nAllocated++;
- }
- }
-
- if(fail)
- {
- for(i = 0; i < nAllocated; i++)
- {
- YFREE(ramdisk.block[i]);
- }
- YFREE(ramdisk.block);
-
- T(YAFFS_TRACE_ALWAYS,("Allocation failed, could only allocate %dMB of %dMB requested.\n",
- nAllocated/64,ramdisk.nBlocks * YAFFS_BYTES_PER_BLOCK));
- return 0;
- }
-
-
-
- return 1;
-}
-
-int yflash_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, yaffs_ExtendedTags *tags)
-{
- int blk;
- int pg;
-
-
- CheckInit(dev);
-
- blk = chunkInNAND/32;
- pg = chunkInNAND%32;
-
-
- if(data)
- {
- memcpy(ramdisk.block[blk]->page[pg].data,data,512);
- }
-
-
- if(tags)
- {
- yaffs_PackedTags pt;
- yaffs_PackTags(&pt,tags);
- memcpy(&ramdisk.block[blk]->page[pg].data[512],&pt,sizeof(pt));
- }
-
- return YAFFS_OK;
-
-}
-
-
-int yflash_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_Tags *tags)
-{
- int blk;
- int pg;
-
-
- CheckInit(dev);
-
- blk = chunkInNAND/32;
- pg = chunkInNAND%32;
-
-
- if(data)
- {
- memcpy(data,ramdisk.block[blk]->page[pg].data,512);
- }
-
-
- if(tags)
- {
- yaffs_PackedTags pt;
- memcpy(&pt,&ramdisk.block[blk]->page[pg].data[512],sizeof(yaffs_PackedTags));
- yaffs_UnpackTags(tags,&pt);
- }
-
- return YAFFS_OK;
-}
-
-
-int yflash_CheckChunkErased(yaffs_Device *dev,int chunkInNAND)
-{
- int blk;
- int pg;
- int i;
-
-
- CheckInit(dev);
-
- blk = chunkInNAND/32;
- pg = chunkInNAND%32;
-
-
- for(i = 0; i < 528; i++)
- {
- if(ramdisk.block[blk]->page[pg].data[i] != 0xFF)
- {
- return YAFFS_FAIL;
- }
- }
-
- return YAFFS_OK;
-
-}
-
-int yflash_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
-{
-
- CheckInit(dev);
-
- if(blockNumber < 0 || blockNumber >= ramdisk.nBlocks)
- {
- T(YAFFS_TRACE_ALWAYS,("Attempt to erase non-existant block %d\n",blockNumber));
- return YAFFS_FAIL;
- }
- else
- {
- memset(ramdisk.block[blockNumber],0xFF,sizeof(yflash_Block));
- return YAFFS_OK;
- }
-
-}
-
-int yflash_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
-{
- return YAFFS_OK;
-
-}
-int yflash_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, yaffs_BlockState *state, int *sequenceNumber)
-{
- *state = YAFFS_BLOCK_STATE_EMPTY;
- *sequenceNumber = 0;
-}
-
-
-int yflash_InitialiseNAND(yaffs_Device *dev)
-{
- return YAFFS_OK;
-}
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * yaffs_ramdisk.c: yaffs ram disk component
- * This provides a ram disk under yaffs.
- * NB this is not intended for NAND emulation.
- * Use this with dev->useNANDECC enabled, then ECC overheads are not required.
- */
-
-/* XXX U-BOOT XXX */
-#include <common.h>
-
-const char *yaffs_ramdisk_c_version = "$Id: yaffs_ramdisk.c,v 1.4 2007/02/14 01:09:06 wookey Exp $";
-
-
-#include "yportenv.h"
-
-#include "yaffs_ramdisk.h"
-#include "yaffs_guts.h"
-#include "devextras.h"
-#include "yaffs_packedtags1.h"
-
-
-
-#define SIZE_IN_MB 2
-
-#define BLOCK_SIZE (32 * 528)
-#define BLOCKS_PER_MEG ((1024*1024)/(32 * 512))
-
-
-
-
-
-typedef struct
-{
- __u8 data[528]; // Data + spare
-} yramdisk_Page;
-
-typedef struct
-{
- yramdisk_Page page[32]; // The pages in the block
-
-} yramdisk_Block;
-
-
-
-typedef struct
-{
- yramdisk_Block **block;
- int nBlocks;
-} yramdisk_Device;
-
-static yramdisk_Device ramdisk;
-
-static int CheckInit(yaffs_Device *dev)
-{
- static int initialised = 0;
-
- int i;
- int fail = 0;
- //int nBlocks;
- int nAllocated = 0;
-
- if(initialised)
- {
- return YAFFS_OK;
- }
-
- initialised = 1;
-
-
- ramdisk.nBlocks = (SIZE_IN_MB * 1024 * 1024)/(16 * 1024);
-
- ramdisk.block = YMALLOC(sizeof(yramdisk_Block *) * ramdisk.nBlocks);
-
- if(!ramdisk.block) return 0;
-
- for(i=0; i <ramdisk.nBlocks; i++)
- {
- ramdisk.block[i] = NULL;
- }
-
- for(i=0; i <ramdisk.nBlocks && !fail; i++)
- {
- if((ramdisk.block[i] = YMALLOC(sizeof(yramdisk_Block))) == 0)
- {
- fail = 1;
- }
- else
- {
- yramdisk_EraseBlockInNAND(dev,i);
- nAllocated++;
- }
- }
-
- if(fail)
- {
- for(i = 0; i < nAllocated; i++)
- {
- YFREE(ramdisk.block[i]);
- }
- YFREE(ramdisk.block);
-
- T(YAFFS_TRACE_ALWAYS,("Allocation failed, could only allocate %dMB of %dMB requested.\n",
- nAllocated/64,ramdisk.nBlocks * 528));
- return 0;
- }
-
-
- return 1;
-}
-
-int yramdisk_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, yaffs_ExtendedTags *tags)
-{
- int blk;
- int pg;
-
-
- CheckInit(dev);
-
- blk = chunkInNAND/32;
- pg = chunkInNAND%32;
-
-
- if(data)
- {
- memcpy(ramdisk.block[blk]->page[pg].data,data,512);
- }
-
-
- if(tags)
- {
- yaffs_PackedTags1 pt;
-
- yaffs_PackTags1(&pt,tags);
- memcpy(&ramdisk.block[blk]->page[pg].data[512],&pt,sizeof(pt));
- }
-
- return YAFFS_OK;
-
-}
-
-
-int yramdisk_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_ExtendedTags *tags)
-{
- int blk;
- int pg;
-
-
- CheckInit(dev);
-
- blk = chunkInNAND/32;
- pg = chunkInNAND%32;
-
-
- if(data)
- {
- memcpy(data,ramdisk.block[blk]->page[pg].data,512);
- }
-
-
- if(tags)
- {
- yaffs_PackedTags1 pt;
-
- memcpy(&pt,&ramdisk.block[blk]->page[pg].data[512],sizeof(pt));
- yaffs_UnpackTags1(tags,&pt);
-
- }
-
- return YAFFS_OK;
-}
-
-
-int yramdisk_CheckChunkErased(yaffs_Device *dev,int chunkInNAND)
-{
- int blk;
- int pg;
- int i;
-
-
- CheckInit(dev);
-
- blk = chunkInNAND/32;
- pg = chunkInNAND%32;
-
-
- for(i = 0; i < 528; i++)
- {
- if(ramdisk.block[blk]->page[pg].data[i] != 0xFF)
- {
- return YAFFS_FAIL;
- }
- }
-
- return YAFFS_OK;
-
-}
-
-int yramdisk_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
-{
-
- CheckInit(dev);
-
- if(blockNumber < 0 || blockNumber >= ramdisk.nBlocks)
- {
- T(YAFFS_TRACE_ALWAYS,("Attempt to erase non-existant block %d\n",blockNumber));
- return YAFFS_FAIL;
- }
- else
- {
- memset(ramdisk.block[blockNumber],0xFF,sizeof(yramdisk_Block));
- return YAFFS_OK;
- }
-
-}
-
-int yramdisk_InitialiseNAND(yaffs_Device *dev)
-{
- //dev->useNANDECC = 1; // force on useNANDECC which gets faked.
- // This saves us doing ECC checks.
-
- return YAFFS_OK;
-}
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * yaffs_ramem2k.c: RAM emulation in-kernel for 2K pages (YAFFS2)
- */
-
-/* XXX U-BOOT XXX */
-#include <common.h>
-
-const char *yaffs_ramem2k_c_version = "$Id: yaffs_ramem2k.c,v 1.3 2007/02/14 01:09:06 wookey Exp $";
-
-#ifndef __KERNEL__
-#define CONFIG_YAFFS_RAM_ENABLED
-#else
-#include <linux/config.h>
-#endif
-
-#ifdef CONFIG_YAFFS_RAM_ENABLED
-
-#include "yportenv.h"
-
-#include "yaffs_nandemul2k.h"
-#include "yaffs_guts.h"
-#include "yaffsinterface.h"
-#include "devextras.h"
-#include "yaffs_packedtags2.h"
-
-
-
-#define EM_SIZE_IN_MEG (32)
-#define PAGE_DATA_SIZE (2048)
-#define PAGE_SPARE_SIZE (64)
-#define PAGES_PER_BLOCK (64)
-
-
-
-#define EM_SIZE_IN_BYTES (EM_SIZE_IN_MEG * (1<<20))
-
-#define PAGE_TOTAL_SIZE (PAGE_DATA_SIZE+PAGE_SPARE_SIZE)
-
-#define BLOCK_TOTAL_SIZE (PAGES_PER_BLOCK * PAGE_TOTAL_SIZE)
-
-#define BLOCKS_PER_MEG ((1<<20)/(PAGES_PER_BLOCK * PAGE_DATA_SIZE))
-
-
-typedef struct
-{
- __u8 data[PAGE_TOTAL_SIZE]; // Data + spare
- int empty; // is this empty?
-} nandemul_Page;
-
-
-typedef struct
-{
- nandemul_Page *page[PAGES_PER_BLOCK];
- int damaged;
-} nandemul_Block;
-
-
-
-typedef struct
-{
- nandemul_Block**block;
- int nBlocks;
-} nandemul_Device;
-
-static nandemul_Device ned;
-
-static int sizeInMB = EM_SIZE_IN_MEG;
-
-
-static void nandemul_yield(int n)
-{
-#ifdef __KERNEL__
- if(n > 0) schedule_timeout(n);
-#endif
-
-}
-
-
-static void nandemul_ReallyEraseBlock(int blockNumber)
-{
- int i;
-
- nandemul_Block *blk;
-
- if(blockNumber < 0 || blockNumber >= ned.nBlocks)
- {
- return;
- }
-
- blk = ned.block[blockNumber];
-
- for(i = 0; i < PAGES_PER_BLOCK; i++)
- {
- memset(blk->page[i],0xff,sizeof(nandemul_Page));
- blk->page[i]->empty = 1;
- }
- nandemul_yield(2);
-}
-
-
-static int nandemul2k_CalcNBlocks(void)
-{
- return EM_SIZE_IN_MEG * BLOCKS_PER_MEG;
-}
-
-
-
-static int CheckInit(void)
-{
- static int initialised = 0;
-
- int i,j;
-
- int fail = 0;
- int nBlocks;
-
- int nAllocated = 0;
-
- if(initialised)
- {
- return YAFFS_OK;
- }
-
-
- ned.nBlocks = nBlocks = nandemul2k_CalcNBlocks();
-
-
- ned.block = YMALLOC(sizeof(nandemul_Block*) * nBlocks );
-
- if(!ned.block) return YAFFS_FAIL;
-
-
-
-
-
- for(i=fail=0; i <nBlocks; i++)
- {
-
- nandemul_Block *blk;
-
- if(!(blk = ned.block[i] = YMALLOC(sizeof(nandemul_Block))))
- {
- fail = 1;
- }
- else
- {
- for(j = 0; j < PAGES_PER_BLOCK; j++)
- {
- if((blk->page[j] = YMALLOC(sizeof(nandemul_Page))) == 0)
- {
- fail = 1;
- }
- }
- nandemul_ReallyEraseBlock(i);
- ned.block[i]->damaged = 0;
- nAllocated++;
- }
- }
-
- if(fail)
- {
- //Todo thump pages
-
- for(i = 0; i < nAllocated; i++)
- {
- YFREE(ned.block[i]);
- }
- YFREE(ned.block);
-
- T(YAFFS_TRACE_ALWAYS,("Allocation failed, could only allocate %dMB of %dMB requested.\n",
- nAllocated/64,sizeInMB));
- return 0;
- }
-
- ned.nBlocks = nBlocks;
-
- initialised = 1;
-
- return 1;
-}
-
-int nandemul2k_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, yaffs_ExtendedTags *tags)
-{
- int blk;
- int pg;
- int i;
-
- __u8 *x;
-
-
- blk = chunkInNAND/PAGES_PER_BLOCK;
- pg = chunkInNAND%PAGES_PER_BLOCK;
-
-
- if(data)
- {
- x = ned.block[blk]->page[pg]->data;
-
- for(i = 0; i < PAGE_DATA_SIZE; i++)
- {
- x[i] &=data[i];
- }
-
- ned.block[blk]->page[pg]->empty = 0;
- }
-
-
- if(tags)
- {
- x = &ned.block[blk]->page[pg]->data[PAGE_DATA_SIZE];
-
- yaffs_PackTags2((yaffs_PackedTags2 *)x,tags);
-
- }
-
- if(tags || data)
- {
- nandemul_yield(1);
- }
-
- return YAFFS_OK;
-}
-
-
-int nandemul2k_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_ExtendedTags *tags)
-{
- int blk;
- int pg;
-
- __u8 *x;
-
-
-
- blk = chunkInNAND/PAGES_PER_BLOCK;
- pg = chunkInNAND%PAGES_PER_BLOCK;
-
-
- if(data)
- {
- memcpy(data,ned.block[blk]->page[pg]->data,PAGE_DATA_SIZE);
- }
-
-
- if(tags)
- {
- x = &ned.block[blk]->page[pg]->data[PAGE_DATA_SIZE];
-
- yaffs_UnpackTags2(tags,(yaffs_PackedTags2 *)x);
- }
-
- return YAFFS_OK;
-}
-
-
-static int nandemul2k_CheckChunkErased(yaffs_Device *dev,int chunkInNAND)
-{
- int blk;
- int pg;
- int i;
-
-
-
- blk = chunkInNAND/PAGES_PER_BLOCK;
- pg = chunkInNAND%PAGES_PER_BLOCK;
-
-
- for(i = 0; i < PAGE_TOTAL_SIZE; i++)
- {
- if(ned.block[blk]->page[pg]->data[i] != 0xFF)
- {
- return YAFFS_FAIL;
- }
- }
-
- return YAFFS_OK;
-
-}
-
-int nandemul2k_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
-{
-
-
- if(blockNumber < 0 || blockNumber >= ned.nBlocks)
- {
- T(YAFFS_TRACE_ALWAYS,("Attempt to erase non-existant block %d\n",blockNumber));
- }
- else if(ned.block[blockNumber]->damaged)
- {
- T(YAFFS_TRACE_ALWAYS,("Attempt to erase damaged block %d\n",blockNumber));
- }
- else
- {
- nandemul_ReallyEraseBlock(blockNumber);
- }
-
- return YAFFS_OK;
-}
-
-int nandemul2k_InitialiseNAND(yaffs_Device *dev)
-{
- CheckInit();
- return YAFFS_OK;
-}
-
-int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
-{
-
- __u8 *x;
-
- x = &ned.block[blockNo]->page[0]->data[PAGE_DATA_SIZE];
-
- memset(x,0,sizeof(yaffs_PackedTags2));
-
-
- return YAFFS_OK;
-
-}
-
-int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, yaffs_BlockState *state, int *sequenceNumber)
-{
- yaffs_ExtendedTags tags;
- int chunkNo;
-
- *sequenceNumber = 0;
-
- chunkNo = blockNo * dev->nChunksPerBlock;
-
- nandemul2k_ReadChunkWithTagsFromNAND(dev,chunkNo,NULL,&tags);
- if(tags.blockBad)
- {
- *state = YAFFS_BLOCK_STATE_DEAD;
- }
- else if(!tags.chunkUsed)
- {
- *state = YAFFS_BLOCK_STATE_EMPTY;
- }
- else if(tags.chunkUsed)
- {
- *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
- *sequenceNumber = tags.sequenceNumber;
- }
- return YAFFS_OK;
-}
-
-int nandemul2k_GetBytesPerChunk(void) { return PAGE_DATA_SIZE;}
-
-int nandemul2k_GetChunksPerBlock(void) { return PAGES_PER_BLOCK; }
-int nandemul2k_GetNumberOfBlocks(void) {return nandemul2k_CalcNBlocks();}
-
-
-#endif //YAFFS_RAM_ENABLED
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * yaffscfg2k.c The configuration for the "direct" use of yaffs.
- *
- * This file is intended to be modified to your requirements.
- * There is no need to redistribute this file.
- */
-
-/* XXX U-BOOT XXX */
-#include <common.h>
-
-#include "yaffscfg.h"
-#include "yaffsfs.h"
-#include "yaffs_fileem2k.h"
-#include "yaffs_nandemul2k.h"
-
-#include <errno.h>
-
-unsigned yaffs_traceMask =
-
- YAFFS_TRACE_SCAN |
- YAFFS_TRACE_GC | YAFFS_TRACE_GC_DETAIL |
- YAFFS_TRACE_ERASE |
- YAFFS_TRACE_TRACING |
- YAFFS_TRACE_ALLOCATE |
- YAFFS_TRACE_CHECKPOINT |
- YAFFS_TRACE_BAD_BLOCKS |
- YAFFS_TRACE_VERIFY |
- YAFFS_TRACE_VERIFY_NAND |
- YAFFS_TRACE_VERIFY_FULL |
-// (~0) |
-
- 0;
-
-
-
-void yaffsfs_SetError(int err)
-{
- //Do whatever to set error
- errno = err;
-}
-
-void yaffsfs_Lock(void)
-{
-}
-
-void yaffsfs_Unlock(void)
-{
-}
-
-__u32 yaffsfs_CurrentTime(void)
-{
- return 0;
-}
-
-
-static int yaffs_kill_alloc = 0;
-static size_t total_malloced = 0;
-static size_t malloc_limit = 0 & 6000000;
-
-void *yaffs_malloc(size_t size)
-{
- size_t this;
- if(yaffs_kill_alloc)
- return NULL;
- if(malloc_limit && malloc_limit <(total_malloced + size) )
- return NULL;
-
- this = malloc(size);
- if(this)
- total_malloced += size;
- return this;
-}
-
-void yaffs_free(void *ptr)
-{
- free(ptr);
-}
-
-void yaffsfs_LocalInitialisation(void)
-{
- // Define locking semaphore.
-}
-
-// Configuration for:
-// /ram 2MB ramdisk
-// /boot 2MB boot disk (flash)
-// /flash 14MB flash disk (flash)
-// NB Though /boot and /flash occupy the same physical device they
-// are still disticnt "yaffs_Devices. You may think of these as "partitions"
-// using non-overlapping areas in the same device.
-//
-
-#include "yaffs_ramdisk.h"
-#include "yaffs_flashif.h"
-#include "yaffs_nandemul2k.h"
-
-static yaffs_Device ramDev;
-static yaffs_Device bootDev;
-static yaffs_Device flashDev;
-static yaffs_Device ram2kDev;
-
-static yaffsfs_DeviceConfiguration yaffsfs_config[] = {
-#if 0
- { "/ram", &ramDev},
- { "/boot", &bootDev},
- { "/flash/", &flashDev},
- { "/ram2k", &ram2kDev},
- {(void *)0,(void *)0}
-#else
- { "/", &ramDev},
- { "/flash/boot", &bootDev},
- { "/flash/flash", &flashDev},
- { "/ram2k", &ram2kDev},
- {(void *)0,(void *)0} /* Null entry to terminate list */
-#endif
-};
-
-
-int yaffs_StartUp(void)
-{
- // Stuff to configure YAFFS
- // Stuff to initialise anything special (eg lock semaphore).
- yaffsfs_LocalInitialisation();
-
- // Set up devices
- // /ram
- memset(&ramDev,0,sizeof(ramDev));
- ramDev.nDataBytesPerChunk = 512;
- ramDev.nChunksPerBlock = 32;
- ramDev.nReservedBlocks = 2; // Set this smaller for RAM
- ramDev.startBlock = 0; // Can use block 0
- ramDev.endBlock = 127; // Last block in 2MB.
- //ramDev.useNANDECC = 1;
- ramDev.nShortOpCaches = 0; // Disable caching on this device.
- ramDev.genericDevice = (void *) 0; // Used to identify the device in fstat.
- ramDev.writeChunkWithTagsToNAND = yramdisk_WriteChunkWithTagsToNAND;
- ramDev.readChunkWithTagsFromNAND = yramdisk_ReadChunkWithTagsFromNAND;
- ramDev.eraseBlockInNAND = yramdisk_EraseBlockInNAND;
- ramDev.initialiseNAND = yramdisk_InitialiseNAND;
-
- // /boot
- memset(&bootDev,0,sizeof(bootDev));
- bootDev.nDataBytesPerChunk = 512;
- bootDev.nChunksPerBlock = 32;
- bootDev.nReservedBlocks = 5;
- bootDev.startBlock = 0; // Can use block 0
- bootDev.endBlock = 63; // Last block
- //bootDev.useNANDECC = 0; // use YAFFS's ECC
- bootDev.nShortOpCaches = 10; // Use caches
- bootDev.genericDevice = (void *) 1; // Used to identify the device in fstat.
- bootDev.writeChunkWithTagsToNAND = yflash_WriteChunkWithTagsToNAND;
- bootDev.readChunkWithTagsFromNAND = yflash_ReadChunkWithTagsFromNAND;
- bootDev.eraseBlockInNAND = yflash_EraseBlockInNAND;
- bootDev.initialiseNAND = yflash_InitialiseNAND;
- bootDev.markNANDBlockBad = yflash_MarkNANDBlockBad;
- bootDev.queryNANDBlock = yflash_QueryNANDBlock;
-
-
-
- // /flash
- // Set this puppy up to use
- // the file emulation space as
- // 2kpage/64chunk per block/128MB device
- memset(&flashDev,0,sizeof(flashDev));
-
- flashDev.nDataBytesPerChunk = 2048;
- flashDev.nChunksPerBlock = 64;
- flashDev.nReservedBlocks = 5;
- flashDev.nCheckpointReservedBlocks = 5;
- //flashDev.checkpointStartBlock = 1;
- //flashDev.checkpointEndBlock = 20;
- flashDev.startBlock = 0;
- flashDev.endBlock = 200; // Make it smaller
- //flashDev.endBlock = yflash_GetNumberOfBlocks()-1;
- flashDev.isYaffs2 = 1;
- flashDev.wideTnodesDisabled=0;
- flashDev.nShortOpCaches = 10; // Use caches
- flashDev.genericDevice = (void *) 2; // Used to identify the device in fstat.
- flashDev.writeChunkWithTagsToNAND = yflash_WriteChunkWithTagsToNAND;
- flashDev.readChunkWithTagsFromNAND = yflash_ReadChunkWithTagsFromNAND;
- flashDev.eraseBlockInNAND = yflash_EraseBlockInNAND;
- flashDev.initialiseNAND = yflash_InitialiseNAND;
- flashDev.markNANDBlockBad = yflash_MarkNANDBlockBad;
- flashDev.queryNANDBlock = yflash_QueryNANDBlock;
-
- // /ram2k
- // Set this puppy up to use
- // the file emulation space as
- // 2kpage/64chunk per block/128MB device
- memset(&ram2kDev,0,sizeof(ram2kDev));
-
- ram2kDev.nDataBytesPerChunk = nandemul2k_GetBytesPerChunk();
- ram2kDev.nChunksPerBlock = nandemul2k_GetChunksPerBlock();
- ram2kDev.nReservedBlocks = 5;
- ram2kDev.startBlock = 0; // First block after /boot
- //ram2kDev.endBlock = 127; // Last block in 16MB
- ram2kDev.endBlock = nandemul2k_GetNumberOfBlocks() - 1; // Last block in 512MB
- ram2kDev.isYaffs2 = 1;
- ram2kDev.nShortOpCaches = 10; // Use caches
- ram2kDev.genericDevice = (void *) 3; // Used to identify the device in fstat.
- ram2kDev.writeChunkWithTagsToNAND = nandemul2k_WriteChunkWithTagsToNAND;
- ram2kDev.readChunkWithTagsFromNAND = nandemul2k_ReadChunkWithTagsFromNAND;
- ram2kDev.eraseBlockInNAND = nandemul2k_EraseBlockInNAND;
- ram2kDev.initialiseNAND = nandemul2k_InitialiseNAND;
- ram2kDev.markNANDBlockBad = nandemul2k_MarkNANDBlockBad;
- ram2kDev.queryNANDBlock = nandemul2k_QueryNANDBlock;
-
- yaffs_initialise(yaffsfs_config);
-
- return 0;
-}
-
-
-
-void SetCheckpointReservedBlocks(int n)
-{
- flashDev.nCheckpointReservedBlocks = n;
-}
+++ /dev/null
-/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Martin Fouts <Martin.Fouts@palmsource.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_CONFIG_H__
-#define __YAFFS_CONFIG_H__
-
-#ifdef YAFFS_OUT_OF_TREE
-
-/* DO NOT UNSET THESE THREE. YAFFS2 will not compile if you do. */
-#define CONFIG_YAFFS_FS
-#define CONFIG_YAFFS_YAFFS1
-#define CONFIG_YAFFS_YAFFS2
-
-/* These options are independent of each other. Select those that matter. */
-
-/* Default: Not selected */
-/* Meaning: Yaffs does its own ECC, rather than using MTD ECC */
-//#define CONFIG_YAFFS_DOES_ECC
-
-/* Default: Not selected */
-/* Meaning: ECC byte order is 'wrong'. Only meaningful if */
-/* CONFIG_YAFFS_DOES_ECC is set */
-//#define CONFIG_YAFFS_ECC_WRONG_ORDER
-
-/* Default: Selected */
-/* Meaning: Disables testing whether chunks are erased before writing to them*/
-#define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK
-
-/* Default: Selected */
-/* Meaning: Cache short names, taking more RAM, but faster look-ups */
-#define CONFIG_YAFFS_SHORT_NAMES_IN_RAM
-
-/* Default: 10 */
-/* Meaning: set the count of blocks to reserve for checkpointing */
-#define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10
-
-/*
-Older-style on-NAND data format has a "pageStatus" byte to record
-chunk/page state. This byte is zeroed when the page is discarded.
-Choose this option if you have existing on-NAND data in this format
-that you need to continue to support. New data written also uses the
-older-style format.
-Note: Use of this option generally requires that MTD's oob layout be
-adjusted to use the older-style format. See notes on tags formats and
-MTD versions in yaffs_mtdif1.c.
-*/
-/* Default: Not selected */
-/* Meaning: Use older-style on-NAND data format with pageStatus byte */
-//#define CONFIG_YAFFS_9BYTE_TAGS
-
-#endif /* YAFFS_OUT_OF_TREE */
-
-#endif /* __YAFFS_CONFIG_H__ */
+++ /dev/null
-#Makefile for NANDemul MTD
-#
-# NB this is not yet suitable for putting into the kernel tree.
-# YAFFS: Yet another Flash File System. A NAND-flash specific file system.
-#
-# Copyright (C) 2002 Aleph One Ltd.
-# for Toby Churchill Ltd and Brightstar Engineering
-#
-# Created by Charles Manning <charles@aleph1.co.uk>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-
-## Change or override KERNELDIR to your kernel
-## comment out USE_xxxx if you don't want these features.
-
-KERNELDIR = /usr/src/kernel-headers-2.4.27
-
-CFLAGS = -D__KERNEL__ -DMODULE -I$(KERNELDIR)/include -O2 -Wall -g
-
-
-
-TARGET = nandemul2k.o
-
-default: $(TARGET)
-
-clean:
- rm -f $(TARGET)
-
-$(TARGET): %.o: %.c
- gcc -c $(CFLAGS) $< -o $@
-
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * This version hacked for emulating 2kpage NAND for YAFFS2 testing.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/fs.h>
-#include <linux/proc_fs.h>
-#include <linux/pagemap.h>
-#include <linux/mtd/mtd.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include <linux/locks.h>
-#endif
-
-#include <asm/uaccess.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
-#include "../yaffs_nandemul2k.h"
-
-#define ALLOCATE(x) kmalloc(x,GFP_KERNEL)
-#define FREE(x) kfree(x)
-
-
-
-
-
-#define NAND_SHIFT (11) // Shifter for 2k
-#define PAGE_DATA_SIZE (1 << NAND_SHIFT)
-#define PAGE_SPARE_SIZE (64)
-#define BLK_SHIFT 6
-#define PAGES_PER_BLOCK (1 << BLK_SHIFT) // = 64
-
-
-#define EM_SIZE_IN_MEG 4
-#define EM_SIZE_IN_BYTES (EM_SIZE_IN_MEG * (1<<20))
-
-#define PAGE_TOTAL_SIZE (PAGE_DATA_SIZE+PAGE_SPARE_SIZE)
-
-#define BLOCK_TOTAL_SIZE (PAGES_PER_BLOCK * PAGE_TOTAL_SIZE)
-
-#define BLOCKS_PER_MEG ((1<<20)/(PAGES_PER_BLOCK * PAGE_DATA_SIZE))
-
-
-static struct mtd_info nandemul2k_mtd;
-
-typedef struct
-{
- __u8 data[PAGE_TOTAL_SIZE]; // Data + spare
- int empty; // is this empty?
-} nandemul_Page;
-
-
-typedef struct
-{
- nandemul_Page *page[PAGES_PER_BLOCK];
- int damaged;
-} nandemul_Block;
-
-
-
-typedef struct
-{
- nandemul_Block**block;
- int nBlocks;
-} nandemul_Device;
-
-static nandemul_Device ned;
-
-static int sizeInMB = EM_SIZE_IN_MEG;
-
-
-static void nandemul_yield(int n)
-{
-#ifdef __KERNEL__
- if(n > 0) schedule_timeout(n);
-#endif
-
-}
-
-
-static void nandemul2k_Read(void *buffer, int page, int start, int nBytes)
-{
- int pg = page%PAGES_PER_BLOCK;
- int blk = page/PAGES_PER_BLOCK;
- if(buffer && nBytes > 0)
- {
- memcpy(buffer,&ned.block[blk]->page[pg]->data[start],nBytes);
- }
-
-}
-
-static void nandemul2k_Program(const void *buffer, int page, int start, int nBytes)
-{
- int pg = page%PAGES_PER_BLOCK;
- int blk = page/PAGES_PER_BLOCK;
- __u8 *p;
- __u8 *b = (__u8 *)buffer;
-
- p = &ned.block[blk]->page[pg]->data[start];
-
- while(buffer && nBytes>0)
- {
- *p = *p & *b;
- p++;
- b++;
- nBytes--;
- }
-}
-
-static void nandemul2k_DoErase(int blockNumber)
-{
- int i;
-
- nandemul_Block *blk;
-
- if(blockNumber < 0 || blockNumber >= ned.nBlocks)
- {
- return;
- }
-
- blk = ned.block[blockNumber];
-
- for(i = 0; i < PAGES_PER_BLOCK; i++)
- {
- memset(blk->page[i],0xff,sizeof(nandemul_Page));
- blk->page[i]->empty = 1;
- }
- nandemul_yield(2);
-}
-
-
-static int nandemul2k_CalcNBlocks(void)
-{
- return EM_SIZE_IN_MEG * BLOCKS_PER_MEG;
-}
-
-
-
-static int CheckInit(void)
-{
- static int initialised = 0;
-
- int i,j;
-
- int fail = 0;
- int nBlocks;
-
- int nAllocated = 0;
-
- if(initialised)
- {
- return 0;
- }
-
-
- ned.nBlocks = nBlocks = nandemul2k_CalcNBlocks();
-
-
- ned.block = ALLOCATE(sizeof(nandemul_Block*) * nBlocks );
-
- if(!ned.block) return ENOMEM;
-
-
-
-
-
- for(i=fail=0; i <nBlocks; i++)
- {
-
- nandemul_Block *blk;
-
- if(!(blk = ned.block[i] = ALLOCATE(sizeof(nandemul_Block))))
- {
- fail = 1;
- }
- else
- {
- for(j = 0; j < PAGES_PER_BLOCK; j++)
- {
- if((blk->page[j] = ALLOCATE(sizeof(nandemul_Page))) == 0)
- {
- fail = 1;
- }
- }
- nandemul2k_DoErase(i);
- ned.block[i]->damaged = 0;
- nAllocated++;
- }
- }
-
- if(fail)
- {
- //Todo thump pages
-
- for(i = 0; i < nAllocated; i++)
- {
- FREE(ned.block[i]);
- }
- FREE(ned.block);
-
- return ENOMEM;
- }
-
- ned.nBlocks = nBlocks;
-
- initialised = 1;
-
- return 1;
-}
-
-
-
-static void nandemul2k_CleanUp(void)
-{
- int i,j;
-
- for(i = 0; i < ned.nBlocks; i++)
- {
- for(j = 0; j < PAGES_PER_BLOCK; j++)
- {
- FREE(ned.block[i]->page[j]);
- }
- FREE(ned.block[i]);
-
- }
- FREE(ned.block);
- ned.block = 0;
-}
-
-int nandemul2k_GetBytesPerChunk(void) { return PAGE_DATA_SIZE;}
-
-int nandemul2k_GetChunksPerBlock(void) { return PAGES_PER_BLOCK; }
-int nandemul2k_GetNumberOfBlocks(void) {return nandemul2k_CalcNBlocks();}
-
-
-
-static int nandemul2k_ReadId(__u8 *vendorId, __u8 *deviceId)
-{
- *vendorId = 'Y';
- *deviceId = '2';
-
- return 1;
-}
-
-
-static int nandemul2k_ReadStatus(__u8 *status)
-{
- *status = 0;
- return 1;
-}
-
-
-#ifdef CONFIG_MTD_NAND_ECC
-#include <linux/mtd/nand_ecc.h>
-#endif
-
-/*
- * NAND low-level MTD interface functions
- */
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf);
-static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf, u_char *oob_buf, struct nand_oobinfo *dummy);
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf);
-static int nand_write (struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf);
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf,
- u_char *oob_buf, struct nand_oobinfo *dummy);
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,7))
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
- unsigned long count, loff_t to, size_t *retlen);
-#else
-static int nand_writev (struct mtd_info *mtd, const struct iovec *vecs,
- unsigned long count, loff_t to, size_t *retlen);
-#endif
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr);
-static void nand_sync (struct mtd_info *mtd);
-
-
-
-/*
- * NAND read
- */
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
-{
- return nand_read_ecc (mtd, from, len, retlen, buf, NULL,NULL);
-}
-
-
-/*
- * NAND read with ECC
- */
-static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf, u_char *oob_buf,struct nand_oobinfo *oobsel)
-{
- int start, page;
- int n = len;
- int nToCopy;
-
-
-
- /* Do not allow reads past end of device */
- if ((from + len) > mtd->size) {
- *retlen = 0;
- return -EINVAL;
- }
-
-
- /* Initialize return value */
- *retlen = 0;
-
- while(n > 0)
- {
-
- /* First we calculate the starting page */
- page = from >> NAND_SHIFT;
-
- /* Get raw starting column */
-
- start = from & (mtd->oobblock-1);
-
- // OK now check for the curveball where the start and end are in
- // the same page
- if((start + n) < mtd->oobblock)
- {
- nToCopy = n;
- }
- else
- {
- nToCopy = mtd->oobblock - start;
- }
-
- nandemul2k_Read(buf, page, start, nToCopy);
- nandemul2k_Read(oob_buf,page,PAGE_DATA_SIZE,PAGE_SPARE_SIZE);
-
- n -= nToCopy;
- from += nToCopy;
- buf += nToCopy;
- if(oob_buf) oob_buf += PAGE_SPARE_SIZE;
- *retlen += nToCopy;
-
- }
-
-
- return 0;
-}
-
-/*
- * NAND read out-of-band
- */
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
-{
- int col, page;
-
- T(0,("nand_read_oob: from = 0x%08x, buf = 0x%08x, len = %i\n", (unsigned int) from, (unsigned int) buf,
- (int) len));
-
- /* Shift to get page */
- page = ((int) from) >> NAND_SHIFT;
-
- /* Mask to get column */
- col = from & 0x0f;
-
- /* Initialize return length value */
- *retlen = 0;
-
- /* Do not allow reads past end of device */
- if ((from + len) > mtd->size) {
- T(0,
- ("nand_read_oob: Attempt read beyond end of device\n"));
- *retlen = 0;
- return -EINVAL;
- }
-
- nandemul2k_Read(buf,page,PAGE_DATA_SIZE + col,len);
-
- /* Return happy */
- *retlen = len;
- return 0;
-}
-
-/*
- * NAND write
- */
-static int nand_write (struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf)
-{
- return nand_write_ecc (mtd, to, len, retlen, buf, NULL,NULL);
-}
-
-/*
- * NAND write with ECC
- */
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf,
- u_char *oob_buf, struct nand_oobinfo *dummy)
-{
-
- int start, page;
- int n = len;
- int nToCopy;
-
-
-
- /* Do not allow reads past end of device */
- if ((to + len) > mtd->size) {
- *retlen = 0;
- return -EINVAL;
- }
-
-
- /* Initialize return value */
- *retlen = 0;
-
- while(n > 0)
- {
-
- /* First we calculate the starting page */
- page = to >> NAND_SHIFT;
-
- /* Get raw starting column */
-
- start = to & (mtd->oobblock - 1);
-
- // OK now check for the curveball where the start and end are in
- // the same page
- if((start + n) < mtd->oobblock)
- {
- nToCopy = n;
- }
- else
- {
- nToCopy = mtd->oobblock - start;
- }
-
- nandemul2k_Program(buf, page, start, nToCopy);
- nandemul2k_Program(oob_buf, page, PAGE_DATA_SIZE, PAGE_SPARE_SIZE);
-
- n -= nToCopy;
- to += nToCopy;
- buf += nToCopy;
- if(oob_buf) oob_buf += PAGE_SPARE_SIZE;
- *retlen += nToCopy;
-
- }
-
-
- return 0;
-}
-
-/*
- * NAND write out-of-band
- */
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf)
-{
- int col, page;
-
-
- T(0,(
- "nand_read_oob: to = 0x%08x, len = %i\n", (unsigned int) to,
- (int) len));
-
- /* Shift to get page */
- page = ((int) to) >> NAND_SHIFT;
-
- /* Mask to get column */
- col = to & 0x0f;
-
- /* Initialize return length value */
- *retlen = 0;
-
- /* Do not allow reads past end of device */
- if ((to + len) > mtd->size) {
- T(0,(
- "nand_read_oob: Attempt read beyond end of device\n"));
- *retlen = 0;
- return -EINVAL;
- }
-
- nandemul2k_Program(buf,page,512 + col,len);
-
- /* Return happy */
- *retlen = len;
- return 0;
-
-}
-
-/*
- * NAND write with iovec
- */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,7))
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
- unsigned long count, loff_t to, size_t *retlen)
-#else
-static int nand_writev (struct mtd_info *mtd, const struct iovec *vecs,
- unsigned long count, loff_t to, size_t *retlen)
-#endif
-{
- return -EINVAL;
-}
-
-/*
- * NAND erase a block
- */
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
-{
- int i, nBlocks,block;
-
- T(0,(
- "nand_erase: start = 0x%08x, len = %i\n",
- (unsigned int) instr->addr, (unsigned int) instr->len));
-
- /* Start address must align on block boundary */
- if (instr->addr & (mtd->erasesize - 1)) {
- T(0,(
- "nand_erase: Unaligned address\n"));
- return -EINVAL;
- }
-
- /* Length must align on block boundary */
- if (instr->len & (mtd->erasesize - 1)) {
- T(0,(
- "nand_erase: Length not block aligned\n"));
- return -EINVAL;
- }
-
- /* Do not allow erase past end of device */
- if ((instr->len + instr->addr) > mtd->size) {
- T(0,(
- "nand_erase: Erase past end of device\n"));
- return -EINVAL;
- }
-
- nBlocks = instr->len >> (NAND_SHIFT + BLK_SHIFT);
- block = instr->addr >> (NAND_SHIFT + BLK_SHIFT);
-
- for(i = 0; i < nBlocks; i++)
- {
- nandemul2k_DoErase(block);
- block++;
- }
-
- instr->state = MTD_ERASE_DONE; * change state to ERASE_DONE */
-
- instr->callback(instr); * wake up */
-
- return 0;
-
-
-}
-
-
-static int nand_block_isbad(struct mtd_info *mtd, loff_t ofs)
-{
- return 0;
-}
-
-static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
-{
- return 0;
-}
-
-
-/*
- * NAND sync
- */
-static void nand_sync (struct mtd_info *mtd)
-{
- T(0,("nand_sync: called\n"));
-
-}
-
-/*
- * Scan for the NAND device
- */
-static int nandemul2k_scan (struct mtd_info *mtd,int nchips)
-{
- mtd->oobblock = PAGE_DATA_SIZE;
- mtd->oobsize = PAGE_SPARE_SIZE;
- mtd->erasesize = PAGE_DATA_SIZE * PAGES_PER_BLOCK;
- mtd->size = sizeInMB * 1024*1024;
-
-
-
- /* Fill in remaining MTD driver data */
- mtd->type = MTD_NANDFLASH;
- mtd->flags = MTD_CAP_NANDFLASH;
- mtd->owner = THIS_MODULE;
- mtd->ecctype = MTD_ECC_NONE;
- mtd->erase = nand_erase;
- mtd->point = NULL;
- mtd->unpoint = NULL;
- mtd->read = nand_read;
- mtd->write = nand_write;
- mtd->read_ecc = nand_read_ecc;
- mtd->write_ecc = nand_write_ecc;
- mtd->read_oob = nand_read_oob;
- mtd->write_oob = nand_write_oob;
- mtd->block_isbad = nand_block_isbad;
- mtd->block_markbad = nand_block_markbad;
- mtd->readv = NULL;
- mtd->writev = nand_writev;
- mtd->sync = nand_sync;
- mtd->lock = NULL;
- mtd->unlock = NULL;
- mtd->suspend = NULL;
- mtd->resume = NULL;
-
- mtd->name = "NANDemul2k";
-
- /* Return happy */
- return 0;
-}
-
-#if 0
-#ifdef MODULE
-MODULE_PARM(sizeInMB, "i");
-
-__setup("sizeInMB=",sizeInMB);
-#endif
-#endif
-
-/*
- * Define partitions for flash devices
- */
-
-static struct mtd_partition nandemul2k_partition[] =
-{
- { .name = "NANDemul partition 1",
- .offset = 0,
- .size = 0 },
-};
-
-static int nPartitions = sizeof(nandemul2k_partition)/sizeof(nandemul2k_partition[0]);
-
-/*
- * Main initialization routine
- */
-int __init nandemul2k_init (void)
-{
-
- // Do the nand init
-
- CheckInit();
-
- nandemul2k_scan(&nandemul2k_mtd,1);
-
- // Build the partition table
-
- nandemul2k_partition[0].size = sizeInMB * 1024 * 1024;
-
- // Register the partition
- add_mtd_partitions(&nandemul2k_mtd,nandemul2k_partition,nPartitions);
-
- return 0;
-
-}
-
-module_init(nandemul2k_init);
-
-/*
- * Clean up routine
- */
-#ifdef MODULE
-static void __exit nandemul2k_cleanup (void)
-{
-
- nandemul2k_CleanUp();
-
- /* Unregister partitions */
- del_mtd_partitions(&nandemul2k_mtd);
-
- /* Unregister the device */
- del_mtd_device (&nandemul2k_mtd);
-
-}
-module_exit(nandemul2k_cleanup);
-#endif
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Charles Manning <manningc@aleph1.co.uk>");
-MODULE_DESCRIPTION("2k Page/128k Block NAND emulated in RAM");
-
-
-
-
+++ /dev/null
-#!/bin/sh
-#
-# YAFFS: Yet another FFS. A NAND-flash specific file system.
-#
-# Copyright (C) 2002-2006 Aleph One Ltd.
-#
-# Created by Charles Manning <charles@aleph1.co.uk>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-# Patch YAFFS into the kernel
-#
-# args: kpath : Full path to kernel sources to be patched
-#
-# Somewhat "inspired by" the mtd patchin script
-#
-# $Id: patch-ker.sh,v 1.3 2007/07/25 01:04:38 charles Exp $
-
-VERSION=0
-PATCHLEVEL=0
-SUBLEVEL=0
-COPYORLINK=$1
-LINUXDIR=$2
-
-# To be a Linux directory, it must have a Makefile
-
-
-# Display usage of this script
-usage () {
- echo "usage: $0 c/l kernelpath"
- echo " if c/l is c, then copy. If l then link"
- exit 1
-}
-
-
-
-if [ -z $LINUXDIR ]
-then
- usage;
-fi
-
-if [ $COPYORLINK = l ]; then
- CPY="ln -s"
-elif [ $COPYORLINK = c ]; then
- CPY="cp"
-else
- echo "unknown copy or link type"
- usage;
-fi
-
-
-# Check if kerneldir contains a Makefile
-if [ ! -f $LINUXDIR/Makefile ]
-then
- echo "Directory $LINUXDIR does not exist or is not a kernel source directory";
- exit 1;
-fi
-
-# Get kernel version
-VERSION=`grep -s VERSION <$LINUXDIR/Makefile | head -n 1 | sed s/'VERSION = '//`
-PATCHLEVEL=`grep -s PATCHLEVEL <$LINUXDIR/Makefile | head -n 1 | sed s/'PATCHLEVEL = '//`
-SUBLEVEL=`grep -s SUBLEVEL <$LINUXDIR/Makefile | head -n 1 | sed s/'SUBLEVEL = '//`
-
-# Can we handle this version?
-if [ $VERSION -ne 2 -o $PATCHLEVEL -lt 6 ]
-then
- echo "Cannot patch kernel version $VERSION.$PATCHLEVEL.$SUBLEVEL, must be 2.6.x or higher"
- exit 1;
-fi
-
-
-KCONFIG=$LINUXDIR/fs/Kconfig
-KCONFIGOLD=$LINUXDIR/fs/Kconfig.pre.yaffs
-YAFFS_PATCHED_STRING=`grep -s yaffs <$KCONFIG | head -n 1`
-
-MAKEFILE=$LINUXDIR/fs/Makefile
-MAKEFILEOLD=$LINUXDIR/fs/Makefile.pre.yaffs
-
-if [ ! -z "$YAFFS_PATCHED_STRING" ]
-then
- YAFFS_PATCHED=0
- echo "$KCONFIG already mentions YAFFS, so we will not change it"
-else
- # Change the fs/Kconfig file
- # Save the old Kconfig
- # Copy all stuff up to JFFS
- # Insert some YAFFS stuff
- # Copy all the rest of the stuff
-
- YAFFS_PATCHED=1
- echo "Updating $KCONFIG"
- mv -f $KCONFIG $KCONFIGOLD
- sed -n -e "/JFFS/,99999 ! p" $KCONFIGOLD >$KCONFIG
- echo "">>$KCONFIG
- echo "# Patched by YAFFS" >>$KCONFIG
- echo "source \"fs/yaffs2/Kconfig\"">>$KCONFIG
- echo "">>$KCONFIG
- sed -n -e "/JFFS/,99999 p" $KCONFIGOLD >>$KCONFIG
-
- # now do fs/Makefile -- simply add the target at the end
- echo "Updating $MAKEFILE"
- cp -f $MAKEFILE $MAKEFILEOLD
- echo "">>$MAKEFILE
- echo "# Patched by YAFFS" >>$MAKEFILE
- echo "obj-\$(CONFIG_YAFFS_FS) += yaffs2/" >>$MAKEFILE
-
-fi
-
-YAFFSDIR=$LINUXDIR/fs/yaffs2
-
-if [ -e $YAFFSDIR ]
-then
- echo "$YAFFSDIR exists, not patching"
-else
- mkdir $LINUXDIR/fs/yaffs2
- $CPY $PWD/Makefile.kernel $LINUXDIR/fs/yaffs2/Makefile
- $CPY $PWD/Kconfig $LINUXDIR/fs/yaffs2
- $CPY $PWD/*.c $PWD/*.h $LINUXDIR/fs/yaffs2
-fi
+++ /dev/null
-This directory holds patches that are useful for Linux integration.
-
-Right now there is only one patched file, yaffs_mtdif2.c. This has been
-patched with a tweaked version of "Sergey's patch" and typically makes a
-stock mtd work properly.
-
+++ /dev/null
-/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- *
- * Copyright (C) 2002 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* mtd interface for YAFFS2 */
-
-const char *yaffs_mtdif2_c_version =
- "$Id: yaffs_mtdif2.c,v 1.2 2007/03/07 08:05:58 colin Exp $";
-
-#include "yportenv.h"
-
-
-#include "yaffs_mtdif2.h"
-
-#include "linux/mtd/mtd.h"
-#include "linux/types.h"
-#include "linux/time.h"
-
-#include "yaffs_packedtags2.h"
-
-
-void nandmtd2_pt2buf(yaffs_Device *dev, yaffs_PackedTags2 *pt, int is_raw)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
- __u8 *ptab = (__u8 *)pt; /* packed tags as bytes */
-
- int i, j = 0, k, n;
-
- /* Pack buffer with 0xff */
- for (i = 0; i < mtd->oobsize; i++)
- dev->spareBuffer[i] = 0xff;
-
- if(!is_raw){
- memcpy(dev->spareBuffer,pt,sizeof(yaffs_PackedTags2));
- } else {
- j = 0;
- k = mtd->oobinfo.oobfree[j][0];
- n = mtd->oobinfo.oobfree[j][1];
-
- if (n == 0) {
- T(YAFFS_TRACE_ERROR, (TSTR("No OOB space for tags" TENDSTR)));
- YBUG();
- }
-
- for (i = 0; i < sizeof(yaffs_PackedTags2); i++) {
- if (n == 0) {
- j++;
- k = mtd->oobinfo.oobfree[j][0];
- n = mtd->oobinfo.oobfree[j][1];
- if (n == 0) {
- T(YAFFS_TRACE_ERROR, (TSTR("No OOB space for tags" TENDSTR)));
- YBUG();
- }
- }
- dev->spareBuffer[k] = ptab[i];
- k++;
- n--;
- }
- }
-
-}
-
-void nandmtd2_buf2pt(yaffs_Device *dev, yaffs_PackedTags2 *pt, int is_raw)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
- int i, j = 0, k, n;
- __u8 *ptab = (__u8 *)pt; /* packed tags as bytes */
-
-
- if (!is_raw) {
-
- memcpy(pt,dev->spareBuffer,sizeof(yaffs_PackedTags2));
- } else {
- j = 0;
- k = mtd->oobinfo.oobfree[j][0];
- n = mtd->oobinfo.oobfree[j][1];
-
- if (n == 0) {
- T(YAFFS_TRACE_ERROR, (TSTR("No space in OOB for tags" TENDSTR)));
- YBUG();
- }
-
- for (i = 0; i < sizeof(yaffs_PackedTags2); i++) {
- if (n == 0) {
- j++;
- k = mtd->oobinfo.oobfree[j][0];
- n = mtd->oobinfo.oobfree[j][1];
- if (n == 0) {
- T(YAFFS_TRACE_ERROR, (TSTR("No space in OOB for tags" TENDSTR)));
- YBUG();
- }
- }
- ptab[i] = dev->spareBuffer[k];
- k++;
- n--;
- }
- }
-
-}
-
-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
- const __u8 * data,
- const yaffs_ExtendedTags * tags)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
- size_t dummy;
- int retval = 0;
-
- loff_t addr = ((loff_t) chunkInNAND) * dev->nBytesPerChunk;
-
- yaffs_PackedTags2 pt;
-
- T(YAFFS_TRACE_MTD,
- (TSTR
- ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
- TENDSTR), chunkInNAND, data, tags));
-
- if (tags) {
- yaffs_PackTags2(&pt, tags);
- }
-
- if (data && tags) {
- nandmtd2_pt2buf(dev, &pt, 0);
- retval =
- mtd->write_ecc(mtd, addr, dev->nBytesPerChunk,
- &dummy, data, dev->spareBuffer,
- NULL);
-
- } else {
-
- T(YAFFS_TRACE_ALWAYS,
- (TSTR
- ("Write chunk with null tags or data!" TENDSTR)));
- YBUG();
- }
-
- if (retval == 0)
- return YAFFS_OK;
- else
- return YAFFS_FAIL;
-}
-
-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
- __u8 * data, yaffs_ExtendedTags * tags)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
- size_t dummy;
- int retval = 0;
-
- loff_t addr = ((loff_t) chunkInNAND) * dev->nBytesPerChunk;
-
- yaffs_PackedTags2 pt;
-
- T(YAFFS_TRACE_MTD,
- (TSTR
- ("nandmtd2_ReadChunkWithTagsToNAND chunk %d data %p tags %p"
- TENDSTR), chunkInNAND, data, tags));
-
- if (0 && data && tags) {
- retval =
- mtd->read_ecc(mtd, addr, dev->nBytesPerChunk,
- &dummy, data, dev->spareBuffer,
- NULL);
- nandmtd2_buf2pt(dev, &pt, 0);
- } else {
- if (data)
- retval =
- mtd->read(mtd, addr, dev->nBytesPerChunk, &dummy,
- data);
- if (tags) {
- retval =
- mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
- dev->spareBuffer);
- nandmtd2_buf2pt(dev, &pt, 1);
- }
- }
-
- if (tags)
- yaffs_UnpackTags2(tags, &pt);
-
- if (retval == 0)
- return YAFFS_OK;
- else
- return YAFFS_FAIL;
-}
-
-int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
- int retval;
- T(YAFFS_TRACE_MTD,
- (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo));
-
- retval =
- mtd->block_markbad(mtd,
- blockNo * dev->nChunksPerBlock *
- dev->nBytesPerChunk);
-
- if (retval == 0)
- return YAFFS_OK;
- else
- return YAFFS_FAIL;
-
-}
-
-int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
- yaffs_BlockState * state, int *sequenceNumber)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
- int retval;
-
- T(YAFFS_TRACE_MTD,
- (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo));
- retval =
- mtd->block_isbad(mtd,
- blockNo * dev->nChunksPerBlock *
- dev->nBytesPerChunk);
-
- if (retval) {
- T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
-
- *state = YAFFS_BLOCK_STATE_DEAD;
- *sequenceNumber = 0;
- } else {
- yaffs_ExtendedTags t;
- nandmtd2_ReadChunkWithTagsFromNAND(dev,
- blockNo *
- dev->nChunksPerBlock, NULL,
- &t);
-
- if (t.chunkUsed) {
- *sequenceNumber = t.sequenceNumber;
- *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
- } else {
- *sequenceNumber = 0;
- *state = YAFFS_BLOCK_STATE_EMPTY;
- }
-
- T(YAFFS_TRACE_MTD,
- (TSTR("block is OK seq %d state %d" TENDSTR), *sequenceNumber,
- *state));
- }
-
- if (retval == 0)
- return YAFFS_OK;
- else
- return YAFFS_FAIL;
-}
-
+++ /dev/null
-#Makefile for mkyaffs
-#
-# NB this is not yet suitable for putting into the kernel tree.
-# YAFFS: Yet another Flash File System. A NAND-flash specific file system.
-#
-# Copyright (C) 2002 Aleph One Ltd.
-# for Toby Churchill Ltd and Brightstar Engineering
-#
-# Created by Charles Manning <charles@aleph1.co.uk>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-
-## Change or override KERNELDIR to your kernel
-
-#KERNELDIR = /usr/src/kernel-headers-2.4.18
-
-CFLAGS = -I/usr/include -I.. -O2 -Wall -DCONFIG_YAFFS_UTIL
-CFLAGS+= -Wshadow -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Wmissing-declarations
-CFLAGS+= -Wmissing-prototypes -Wredundant-decls -Wnested-externs -Winline
-
-## Change if you are using a cross-compiler
-MAKETOOLS =
-
-CC=$(MAKETOOLS)gcc
-
-COMMONLINKS = yaffs_ecc.c
-COMMONOBJS = $(COMMONLINKS:.c=.o)
-
-MKYAFFSSOURCES = mkyaffsimage.c
-MKYAFFSIMAGEOBJS = $(MKYAFFSSOURCES:.c=.o)
-
-MKYAFFS2SOURCES = mkyaffs2image.c
-MKYAFFS2LINKS = yaffs_packedtags2.c yaffs_tagsvalidity.c
-MKYAFFS2IMAGEOBJS = $(MKYAFFS2SOURCES:.c=.o) $(MKYAFFS2LINKS:.c=.o)
-
-all: mkyaffsimage mkyaffs2image
-
-$(COMMONLINKS) $(MKYAFFSLINKS) $(MKYAFFS2LINKS):
- ln -s ../$@ $@
-
-$(COMMONOBJS) $(MKYAFFSIMAGEOBJS) $(MKYAFFS2IMAGEOBJS) : %.o: %.c
- $(CC) -c $(CFLAGS) $< -o $@
-
-mkyaffsimage: $(COMMONOBJS) $(MKYAFFSIMAGEOBJS)
- $(CC) -o $@ $(COMMONOBJS) $(MKYAFFSIMAGEOBJS)
-
-mkyaffs2image: $(COMMONOBJS) $(MKYAFFS2IMAGEOBJS)
- $(CC) -o $@ $(COMMONOBJS) $(MKYAFFS2IMAGEOBJS)
-
-
-clean:
- rm -f $(COMMONOBJS) $(MKYAFFSIMAGEOBJS) $(MKYAFFS2IMAGEOBJS) $(COMMONLINKS) $(MKYAFFSLINKS) $(MKYAFFS2LINKS) mkyaffsimage mkyaffs2image core
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- * Nick Bane modifications flagged NCB
- * Endian handling patches by James Ng.
- * mkyaffs2image hacks by NCB
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * makeyaffs2image.c
- *
- * Makes a YAFFS2 file system image that can be used to load up a file system.
- * Uses default Linux MTD layout - change if you need something different.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <string.h>
-#include <unistd.h>
-#include "yaffs_ecc.h"
-#include "yaffs_guts.h"
-
-#include "yaffs_tagsvalidity.h"
-#include "yaffs_packedtags2.h"
-
-unsigned yaffs_traceMask=0;
-
-#define MAX_OBJECTS 10000
-
-#define chunkSize 2048
-#define spareSize 64
-
-const char * mkyaffsimage_c_version = "$Id: mkyaffs2image.c,v 1.4 2007/02/14 01:09:06 wookey Exp $";
-
-
-typedef struct
-{
- dev_t dev;
- ino_t ino;
- int obj;
-} objItem;
-
-
-static objItem obj_list[MAX_OBJECTS];
-static int n_obj = 0;
-static int obj_id = YAFFS_NOBJECT_BUCKETS + 1;
-
-static int nObjects, nDirectories, nPages;
-
-static int outFile;
-
-static int error;
-
-static int convert_endian = 0;
-
-static int obj_compare(const void *a, const void * b)
-{
- objItem *oa, *ob;
-
- oa = (objItem *)a;
- ob = (objItem *)b;
-
- if(oa->dev < ob->dev) return -1;
- if(oa->dev > ob->dev) return 1;
- if(oa->ino < ob->ino) return -1;
- if(oa->ino > ob->ino) return 1;
-
- return 0;
-}
-
-
-static void add_obj_to_list(dev_t dev, ino_t ino, int obj)
-{
- if(n_obj < MAX_OBJECTS)
- {
- obj_list[n_obj].dev = dev;
- obj_list[n_obj].ino = ino;
- obj_list[n_obj].obj = obj;
- n_obj++;
- qsort(obj_list,n_obj,sizeof(objItem),obj_compare);
-
- }
- else
- {
- // oops! not enough space in the object array
- fprintf(stderr,"Not enough space in object array\n");
- exit(2);
- }
-}
-
-
-static int find_obj_in_list(dev_t dev, ino_t ino)
-{
- objItem *i = NULL;
- objItem test;
-
- test.dev = dev;
- test.ino = ino;
-
- if(n_obj > 0)
- {
- i = bsearch(&test,obj_list,n_obj,sizeof(objItem),obj_compare);
- }
-
- if(i)
- {
- return i->obj;
- }
- return -1;
-}
-
-/* This little function converts a little endian tag to a big endian tag.
- * NOTE: The tag is not usable after this other than calculating the CRC
- * with.
- */
-static void little_to_big_endian(yaffs_Tags *tagsPtr)
-{
-#if 0 // FIXME NCB
- yaffs_TagsUnion * tags = (yaffs_TagsUnion* )tagsPtr; // Work in bytes.
- yaffs_TagsUnion temp;
-
- memset(&temp, 0, sizeof(temp));
- // Ick, I hate magic numbers.
- temp.asBytes[0] = ((tags->asBytes[2] & 0x0F) << 4) | ((tags->asBytes[1] & 0xF0) >> 4);
- temp.asBytes[1] = ((tags->asBytes[1] & 0x0F) << 4) | ((tags->asBytes[0] & 0xF0) >> 4);
- temp.asBytes[2] = ((tags->asBytes[0] & 0x0F) << 4) | ((tags->asBytes[2] & 0x30) >> 2) | ((tags->asBytes[3] & 0xC0) >> 6);
- temp.asBytes[3] = ((tags->asBytes[3] & 0x3F) << 2) | ((tags->asBytes[2] & 0xC0) >> 6);
- temp.asBytes[4] = ((tags->asBytes[6] & 0x03) << 6) | ((tags->asBytes[5] & 0xFC) >> 2);
- temp.asBytes[5] = ((tags->asBytes[5] & 0x03) << 6) | ((tags->asBytes[4] & 0xFC) >> 2);
- temp.asBytes[6] = ((tags->asBytes[4] & 0x03) << 6) | (tags->asBytes[7] & 0x3F);
- temp.asBytes[7] = (tags->asBytes[6] & 0xFC) | ((tags->asBytes[7] & 0xC0) >> 6);
-
- // Now copy it back.
- tags->asBytes[0] = temp.asBytes[0];
- tags->asBytes[1] = temp.asBytes[1];
- tags->asBytes[2] = temp.asBytes[2];
- tags->asBytes[3] = temp.asBytes[3];
- tags->asBytes[4] = temp.asBytes[4];
- tags->asBytes[5] = temp.asBytes[5];
- tags->asBytes[6] = temp.asBytes[6];
- tags->asBytes[7] = temp.asBytes[7];
-#endif
-}
-
-static int write_chunk(__u8 *data, __u32 objId, __u32 chunkId, __u32 nBytes)
-{
- yaffs_ExtendedTags t;
- yaffs_PackedTags2 pt;
-
- error = write(outFile,data,chunkSize);
- if(error < 0) return error;
-
- yaffs_InitialiseTags(&t);
-
- t.chunkId = chunkId;
-// t.serialNumber = 0;
- t.serialNumber = 1; // **CHECK**
- t.byteCount = nBytes;
- t.objectId = objId;
-
- t.sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
-
-// added NCB **CHECK**
- t.chunkUsed = 1;
-
- if (convert_endian)
- {
- little_to_big_endian(&t);
- }
-
- nPages++;
-
- yaffs_PackTags2(&pt,&t);
-
-// return write(outFile,&pt,sizeof(yaffs_PackedTags2));
- return write(outFile,&pt,spareSize);
-
-}
-
-#define SWAP32(x) ((((x) & 0x000000FF) << 24) | \
- (((x) & 0x0000FF00) << 8 ) | \
- (((x) & 0x00FF0000) >> 8 ) | \
- (((x) & 0xFF000000) >> 24))
-
-#define SWAP16(x) ((((x) & 0x00FF) << 8) | \
- (((x) & 0xFF00) >> 8))
-
-// This one is easier, since the types are more standard. No funky shifts here.
-static void object_header_little_to_big_endian(yaffs_ObjectHeader* oh)
-{
- oh->type = SWAP32(oh->type); // GCC makes enums 32 bits.
- oh->parentObjectId = SWAP32(oh->parentObjectId); // int
- oh->sum__NoLongerUsed = SWAP16(oh->sum__NoLongerUsed); // __u16 - Not used, but done for completeness.
- // name = skip. Char array. Not swapped.
- oh->yst_mode = SWAP32(oh->yst_mode);
-#ifdef CONFIG_YAFFS_WINCE // WinCE doesn't implement this, but we need to just in case.
- // In fact, WinCE would be *THE* place where this would be an issue!
- oh->notForWinCE[0] = SWAP32(oh->notForWinCE[0]);
- oh->notForWinCE[1] = SWAP32(oh->notForWinCE[1]);
- oh->notForWinCE[2] = SWAP32(oh->notForWinCE[2]);
- oh->notForWinCE[3] = SWAP32(oh->notForWinCE[3]);
- oh->notForWinCE[4] = SWAP32(oh->notForWinCE[4]);
-#else
- // Regular POSIX.
- oh->yst_uid = SWAP32(oh->yst_uid);
- oh->yst_gid = SWAP32(oh->yst_gid);
- oh->yst_atime = SWAP32(oh->yst_atime);
- oh->yst_mtime = SWAP32(oh->yst_mtime);
- oh->yst_ctime = SWAP32(oh->yst_ctime);
-#endif
-
- oh->fileSize = SWAP32(oh->fileSize); // Aiee. An int... signed, at that!
- oh->equivalentObjectId = SWAP32(oh->equivalentObjectId);
- // alias - char array.
- oh->yst_rdev = SWAP32(oh->yst_rdev);
-
-#ifdef CONFIG_YAFFS_WINCE
- oh->win_ctime[0] = SWAP32(oh->win_ctime[0]);
- oh->win_ctime[1] = SWAP32(oh->win_ctime[1]);
- oh->win_atime[0] = SWAP32(oh->win_atime[0]);
- oh->win_atime[1] = SWAP32(oh->win_atime[1]);
- oh->win_mtime[0] = SWAP32(oh->win_mtime[0]);
- oh->win_mtime[1] = SWAP32(oh->win_mtime[1]);
- oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
- oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
- oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
- oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
- oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
- oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
-#else
- oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
- oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
- oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
- oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
- oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
- oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
- oh->roomToGrow[6] = SWAP32(oh->roomToGrow[6]);
- oh->roomToGrow[7] = SWAP32(oh->roomToGrow[7]);
- oh->roomToGrow[8] = SWAP32(oh->roomToGrow[8]);
- oh->roomToGrow[9] = SWAP32(oh->roomToGrow[9]);
- oh->roomToGrow[10] = SWAP32(oh->roomToGrow[10]);
- oh->roomToGrow[11] = SWAP32(oh->roomToGrow[11]);
-#endif
-}
-
-static int write_object_header(int objId, yaffs_ObjectType t, struct stat *s, int parent, const char *name, int equivalentObj, const char * alias)
-{
- __u8 bytes[chunkSize];
-
-
- yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *)bytes;
-
- memset(bytes,0xff,sizeof(bytes));
-
- oh->type = t;
-
- oh->parentObjectId = parent;
-
- strncpy(oh->name,name,YAFFS_MAX_NAME_LENGTH);
-
-
- if(t != YAFFS_OBJECT_TYPE_HARDLINK)
- {
- oh->yst_mode = s->st_mode;
- oh->yst_uid = s->st_uid;
-// NCB 12/9/02 oh->yst_gid = s->yst_uid;
- oh->yst_gid = s->st_gid;
- oh->yst_atime = s->st_atime;
- oh->yst_mtime = s->st_mtime;
- oh->yst_ctime = s->st_ctime;
- oh->yst_rdev = s->st_rdev;
- }
-
- if(t == YAFFS_OBJECT_TYPE_FILE)
- {
- oh->fileSize = s->st_size;
- }
-
- if(t == YAFFS_OBJECT_TYPE_HARDLINK)
- {
- oh->equivalentObjectId = equivalentObj;
- }
-
- if(t == YAFFS_OBJECT_TYPE_SYMLINK)
- {
- strncpy(oh->alias,alias,YAFFS_MAX_ALIAS_LENGTH);
- }
-
- if (convert_endian)
- {
- object_header_little_to_big_endian(oh);
- }
-
- return write_chunk(bytes,objId,0,0xffff);
-
-}
-
-
-static int process_directory(int parent, const char *path)
-{
-
- DIR *dir;
- struct dirent *entry;
-
- nDirectories++;
-
- dir = opendir(path);
-
- if(dir)
- {
- while((entry = readdir(dir)) != NULL)
- {
-
- /* Ignore . and .. */
- if(strcmp(entry->d_name,".") &&
- strcmp(entry->d_name,".."))
- {
- char full_name[500];
- struct stat stats;
- int equivalentObj;
- int newObj;
-
- sprintf(full_name,"%s/%s",path,entry->d_name);
-
- lstat(full_name,&stats);
-
- if(S_ISLNK(stats.st_mode) ||
- S_ISREG(stats.st_mode) ||
- S_ISDIR(stats.st_mode) ||
- S_ISFIFO(stats.st_mode) ||
- S_ISBLK(stats.st_mode) ||
- S_ISCHR(stats.st_mode) ||
- S_ISSOCK(stats.st_mode))
- {
-
- newObj = obj_id++;
- nObjects++;
-
- printf("Object %d, %s is a ",newObj,full_name);
-
- /* We're going to create an object for it */
- if((equivalentObj = find_obj_in_list(stats.st_dev, stats.st_ino)) > 0)
- {
- /* we need to make a hard link */
- printf("hard link to object %d\n",equivalentObj);
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_HARDLINK, &stats, parent, entry->d_name, equivalentObj, NULL);
- }
- else
- {
-
- add_obj_to_list(stats.st_dev,stats.st_ino,newObj);
-
- if(S_ISLNK(stats.st_mode))
- {
-
- char symname[500];
-
- memset(symname,0, sizeof(symname));
-
- readlink(full_name,symname,sizeof(symname) -1);
-
- printf("symlink to \"%s\"\n",symname);
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SYMLINK, &stats, parent, entry->d_name, -1, symname);
-
- }
- else if(S_ISREG(stats.st_mode))
- {
- printf("file, ");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_FILE, &stats, parent, entry->d_name, -1, NULL);
-
- if(error >= 0)
- {
- int h;
- __u8 bytes[chunkSize];
- int nBytes;
- int chunk = 0;
-
- h = open(full_name,O_RDONLY);
- if(h >= 0)
- {
- memset(bytes,0xff,sizeof(bytes));
- while((nBytes = read(h,bytes,sizeof(bytes))) > 0)
- {
- chunk++;
- write_chunk(bytes,newObj,chunk,nBytes);
- memset(bytes,0xff,sizeof(bytes));
- }
- if(nBytes < 0)
- error = nBytes;
-
- printf("%d data chunks written\n",chunk);
- }
- else
- {
- perror("Error opening file");
- }
- close(h);
-
- }
-
- }
- else if(S_ISSOCK(stats.st_mode))
- {
- printf("socket\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISFIFO(stats.st_mode))
- {
- printf("fifo\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISCHR(stats.st_mode))
- {
- printf("character device\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISBLK(stats.st_mode))
- {
- printf("block device\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISDIR(stats.st_mode))
- {
- printf("directory\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, parent, entry->d_name, -1, NULL);
-// NCB modified 10/9/2001 process_directory(1,full_name);
- process_directory(newObj,full_name);
- }
- }
- }
- else
- {
- printf(" we don't handle this type\n");
- }
- }
- }
- }
-
- return 0;
-
-}
-
-
-int main(int argc, char *argv[])
-{
- struct stat stats;
-
- printf("mkyaffs2image: image building tool for YAFFS2 built "__DATE__"\n");
-
- if(argc < 3)
- {
- printf("usage: mkyaffs2image dir image_file [convert]\n");
- printf(" dir the directory tree to be converted\n");
- printf(" image_file the output file to hold the image\n");
- printf(" 'convert' produce a big-endian image from a little-endian machine\n");
- exit(1);
- }
-
- if ((argc == 4) && (!strncmp(argv[3], "convert", strlen("convert"))))
- {
- convert_endian = 1;
- }
-
- if(stat(argv[1],&stats) < 0)
- {
- printf("Could not stat %s\n",argv[1]);
- exit(1);
- }
-
- if(!S_ISDIR(stats.st_mode))
- {
- printf(" %s is not a directory\n",argv[1]);
- exit(1);
- }
-
- outFile = open(argv[2],O_CREAT | O_TRUNC | O_WRONLY, S_IREAD | S_IWRITE);
-
-
- if(outFile < 0)
- {
- printf("Could not open output file %s\n",argv[2]);
- exit(1);
- }
-
- printf("Processing directory %s into image file %s\n",argv[1],argv[2]);
- error = write_object_header(1, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, 1,"", -1, NULL);
- if(error)
- error = process_directory(YAFFS_OBJECTID_ROOT,argv[1]);
-
- close(outFile);
-
- if(error < 0)
- {
- perror("operation incomplete");
- exit(1);
- }
- else
- {
- printf("Operation complete.\n"
- "%d objects in %d directories\n"
- "%d NAND pages\n",nObjects, nDirectories, nPages);
- }
-
- close(outFile);
-
- exit(0);
-}
-
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- * Nick Bane modifications flagged NCB
- * Endian handling patches by James Ng
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * makeyaffsimage.c
- *
- * Makes a YAFFS file system image that can be used to load up a file system.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <string.h>
-#include <unistd.h>
-#include "yaffs_ecc.h"
-#include "yaffs_guts.h"
-
-
-#define MAX_OBJECTS 10000
-
-const char * mkyaffsimage_c_version = "$Id: mkyaffsimage.c,v 1.7 2003/07/16 03:00:48 charles Exp $";
-
-
-typedef struct
-{
- dev_t dev;
- ino_t ino;
- int obj;
-} objItem;
-
-
-static objItem obj_list[MAX_OBJECTS];
-static int n_obj = 0;
-static int obj_id = YAFFS_NOBJECT_BUCKETS + 1;
-
-static int nObjects, nDirectories, nPages;
-
-static int outFile;
-
-static int error;
-
-static int convert_endian = 0;
-
-static int obj_compare(const void *a, const void * b)
-{
- objItem *oa, *ob;
-
- oa = (objItem *)a;
- ob = (objItem *)b;
-
- if(oa->dev < ob->dev) return -1;
- if(oa->dev > ob->dev) return 1;
- if(oa->ino < ob->ino) return -1;
- if(oa->ino > ob->ino) return 1;
-
- return 0;
-}
-
-
-static void add_obj_to_list(dev_t dev, ino_t ino, int obj)
-{
- if(n_obj < MAX_OBJECTS)
- {
- obj_list[n_obj].dev = dev;
- obj_list[n_obj].ino = ino;
- obj_list[n_obj].obj = obj;
- n_obj++;
- qsort(obj_list,n_obj,sizeof(objItem),obj_compare);
-
- }
- else
- {
- // oops! not enough space in the object array
- fprintf(stderr,"Not enough space in object array\n");
- exit(2);
- }
-}
-
-
-static int find_obj_in_list(dev_t dev, ino_t ino)
-{
- objItem *i = NULL;
- objItem test;
-
- test.dev = dev;
- test.ino = ino;
-
- if(n_obj > 0)
- {
- i = bsearch(&test,obj_list,n_obj,sizeof(objItem),obj_compare);
- }
-
- if(i)
- {
- return i->obj;
- }
- return -1;
-}
-
-// NCB added 10/9/2002
-static __u16 yaffs_CalcNameSum(const char *name)
-{
- __u16 sum = 0;
- __u16 i = 1;
-
- __u8 *bname = (__u8 *)name;
-
- while (*bname)
- {
- sum += (*bname) * i;
- i++;
- bname++;
- }
- return sum;
-}
-
-
-static void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare)
-{
- yaffs_ECCCalculate(data , spare->ecc1);
- yaffs_ECCCalculate(&data[256] , spare->ecc2);
-}
-
-static void yaffs_CalcTagsECC(yaffs_Tags *tags)
-{
- // Todo don't do anything yet. Need to calculate ecc
- unsigned char *b = ((yaffs_TagsUnion *)tags)->asBytes;
- unsigned i,j;
- unsigned ecc = 0;
- unsigned bit = 0;
-
- // Clear ECC fields
- if (!convert_endian)
- {
- tags->ecc = 0;
- }
- else
- {
- // Because we're in "munged tag" mode, we have to clear it manually
- b[6] &= 0xC0;
- b[7] &= 0x03;
- }
-
- for(i = 0; i < 8; i++)
- {
-// NCB modified 20-9-02 for(j = 1; j &0x7f; j<<=1)
- for(j = 1; j &0xff; j<<=1)
- {
- bit++;
- if(b[i] & j)
- {
- ecc ^= bit;
- }
- }
- }
-
- // Write out ECC
- if (!convert_endian)
- {
- tags->ecc = ecc;
- }
- else
- {
- // We have to munge the ECC again.
- b[6] |= ((ecc >> 6) & 0x3F);
- b[7] |= ((ecc & 0x3F) << 2);
- }
-}
-static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr, yaffs_Tags *tagsPtr)
-{
- yaffs_TagsUnion *tu = (yaffs_TagsUnion *)tagsPtr;
-
- //yaffs_CalcTagsECC(tagsPtr);
-
- sparePtr->tagByte0 = tu->asBytes[0];
- sparePtr->tagByte1 = tu->asBytes[1];
- sparePtr->tagByte2 = tu->asBytes[2];
- sparePtr->tagByte3 = tu->asBytes[3];
- sparePtr->tagByte4 = tu->asBytes[4];
- sparePtr->tagByte5 = tu->asBytes[5];
- sparePtr->tagByte6 = tu->asBytes[6];
- sparePtr->tagByte7 = tu->asBytes[7];
-}
-
-/* This little function converts a little endian tag to a big endian tag.
- * NOTE: The tag is not usable after this other than calculating the CRC
- * with.
- */
-static void little_to_big_endian(yaffs_Tags *tagsPtr)
-{
- yaffs_TagsUnion * tags = (yaffs_TagsUnion* )tagsPtr; // Work in bytes.
- yaffs_TagsUnion temp;
-
- memset(&temp, 0, sizeof(temp));
- // Ick, I hate magic numbers.
- temp.asBytes[0] = ((tags->asBytes[2] & 0x0F) << 4) | ((tags->asBytes[1] & 0xF0) >> 4);
- temp.asBytes[1] = ((tags->asBytes[1] & 0x0F) << 4) | ((tags->asBytes[0] & 0xF0) >> 4);
- temp.asBytes[2] = ((tags->asBytes[0] & 0x0F) << 4) | ((tags->asBytes[2] & 0x30) >> 2) | ((tags->asBytes[3] & 0xC0) >> 6);
- temp.asBytes[3] = ((tags->asBytes[3] & 0x3F) << 2) | ((tags->asBytes[2] & 0xC0) >> 6);
- temp.asBytes[4] = ((tags->asBytes[6] & 0x03) << 6) | ((tags->asBytes[5] & 0xFC) >> 2);
- temp.asBytes[5] = ((tags->asBytes[5] & 0x03) << 6) | ((tags->asBytes[4] & 0xFC) >> 2);
- temp.asBytes[6] = ((tags->asBytes[4] & 0x03) << 6) | (tags->asBytes[7] & 0x3F);
- temp.asBytes[7] = (tags->asBytes[6] & 0xFC) | ((tags->asBytes[7] & 0xC0) >> 6);
-
- // Now copy it back.
- tags->asBytes[0] = temp.asBytes[0];
- tags->asBytes[1] = temp.asBytes[1];
- tags->asBytes[2] = temp.asBytes[2];
- tags->asBytes[3] = temp.asBytes[3];
- tags->asBytes[4] = temp.asBytes[4];
- tags->asBytes[5] = temp.asBytes[5];
- tags->asBytes[6] = temp.asBytes[6];
- tags->asBytes[7] = temp.asBytes[7];
-}
-
-static int write_chunk(__u8 *data, __u32 objId, __u32 chunkId, __u32 nBytes)
-{
- yaffs_Tags t;
- yaffs_Spare s;
-
- error = write(outFile,data,512);
- if(error < 0) return error;
-
- memset(&t,0xff,sizeof (yaffs_Tags));
- memset(&s,0xff,sizeof (yaffs_Spare));
-
- t.chunkId = chunkId;
- t.serialNumber = 0;
- t.byteCount = nBytes;
- t.objectId = objId;
-
- if (convert_endian)
- {
- little_to_big_endian(&t);
- }
-
- yaffs_CalcTagsECC(&t);
- yaffs_LoadTagsIntoSpare(&s,&t);
- yaffs_CalcECC(data,&s);
-
- nPages++;
-
- return write(outFile,&s,sizeof(yaffs_Spare));
-
-}
-
-#define SWAP32(x) ((((x) & 0x000000FF) << 24) | \
- (((x) & 0x0000FF00) << 8 ) | \
- (((x) & 0x00FF0000) >> 8 ) | \
- (((x) & 0xFF000000) >> 24))
-
-#define SWAP16(x) ((((x) & 0x00FF) << 8) | \
- (((x) & 0xFF00) >> 8))
-
-// This one is easier, since the types are more standard. No funky shifts here.
-static void object_header_little_to_big_endian(yaffs_ObjectHeader* oh)
-{
- oh->type = SWAP32(oh->type); // GCC makes enums 32 bits.
- oh->parentObjectId = SWAP32(oh->parentObjectId); // int
- oh->sum__NoLongerUsed = SWAP16(oh->sum__NoLongerUsed); // __u16 - Not used, but done for completeness.
- // name = skip. Char array. Not swapped.
- oh->yst_mode = SWAP32(oh->yst_mode);
-#ifdef CONFIG_YAFFS_WINCE // WinCE doesn't implement this, but we need to just in case.
- // In fact, WinCE would be *THE* place where this would be an issue!
- oh->notForWinCE[0] = SWAP32(oh->notForWinCE[0]);
- oh->notForWinCE[1] = SWAP32(oh->notForWinCE[1]);
- oh->notForWinCE[2] = SWAP32(oh->notForWinCE[2]);
- oh->notForWinCE[3] = SWAP32(oh->notForWinCE[3]);
- oh->notForWinCE[4] = SWAP32(oh->notForWinCE[4]);
-#else
- // Regular POSIX.
- oh->yst_uid = SWAP32(oh->yst_uid);
- oh->yst_gid = SWAP32(oh->yst_gid);
- oh->yst_atime = SWAP32(oh->yst_atime);
- oh->yst_mtime = SWAP32(oh->yst_mtime);
- oh->yst_ctime = SWAP32(oh->yst_ctime);
-#endif
-
- oh->fileSize = SWAP32(oh->fileSize); // Aiee. An int... signed, at that!
- oh->equivalentObjectId = SWAP32(oh->equivalentObjectId);
- // alias - char array.
- oh->yst_rdev = SWAP32(oh->yst_rdev);
-
-#ifdef CONFIG_YAFFS_WINCE
- oh->win_ctime[0] = SWAP32(oh->win_ctime[0]);
- oh->win_ctime[1] = SWAP32(oh->win_ctime[1]);
- oh->win_atime[0] = SWAP32(oh->win_atime[0]);
- oh->win_atime[1] = SWAP32(oh->win_atime[1]);
- oh->win_mtime[0] = SWAP32(oh->win_mtime[0]);
- oh->win_mtime[1] = SWAP32(oh->win_mtime[1]);
- oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
- oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
- oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
- oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
- oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
- oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
-#else
- oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
- oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
- oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
- oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
- oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
- oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
- oh->roomToGrow[6] = SWAP32(oh->roomToGrow[6]);
- oh->roomToGrow[7] = SWAP32(oh->roomToGrow[7]);
- oh->roomToGrow[8] = SWAP32(oh->roomToGrow[8]);
- oh->roomToGrow[9] = SWAP32(oh->roomToGrow[9]);
- oh->roomToGrow[10] = SWAP32(oh->roomToGrow[10]);
- oh->roomToGrow[11] = SWAP32(oh->roomToGrow[11]);
-#endif
-}
-
-static int write_object_header(int objId, yaffs_ObjectType t, struct stat *s, int parent, const char *name, int equivalentObj, const char * alias)
-{
- __u8 bytes[512];
-
-
- yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *)bytes;
-
- memset(bytes,0xff,512);
-
- oh->type = t;
-
- oh->parentObjectId = parent;
-
- strncpy(oh->name,name,YAFFS_MAX_NAME_LENGTH);
-
-
- if(t != YAFFS_OBJECT_TYPE_HARDLINK)
- {
- oh->yst_mode = s->st_mode;
- oh->yst_uid = s->st_uid;
-// NCB 12/9/02 oh->yst_gid = s->yst_uid;
- oh->yst_gid = s->st_gid;
- oh->yst_atime = s->st_atime;
- oh->yst_mtime = s->st_mtime;
- oh->yst_ctime = s->st_ctime;
- oh->yst_rdev = s->st_rdev;
- }
-
- if(t == YAFFS_OBJECT_TYPE_FILE)
- {
- oh->fileSize = s->st_size;
- }
-
- if(t == YAFFS_OBJECT_TYPE_HARDLINK)
- {
- oh->equivalentObjectId = equivalentObj;
- }
-
- if(t == YAFFS_OBJECT_TYPE_SYMLINK)
- {
- strncpy(oh->alias,alias,YAFFS_MAX_ALIAS_LENGTH);
- }
-
- if (convert_endian)
- {
- object_header_little_to_big_endian(oh);
- }
-
- return write_chunk(bytes,objId,0,0xffff);
-
-}
-
-
-static int process_directory(int parent, const char *path)
-{
-
- DIR *dir;
- struct dirent *entry;
-
- nDirectories++;
-
- dir = opendir(path);
-
- if(dir)
- {
- while((entry = readdir(dir)) != NULL)
- {
-
- /* Ignore . and .. */
- if(strcmp(entry->d_name,".") &&
- strcmp(entry->d_name,".."))
- {
- char full_name[500];
- struct stat stats;
- int equivalentObj;
- int newObj;
-
- sprintf(full_name,"%s/%s",path,entry->d_name);
-
- lstat(full_name,&stats);
-
- if(S_ISLNK(stats.st_mode) ||
- S_ISREG(stats.st_mode) ||
- S_ISDIR(stats.st_mode) ||
- S_ISFIFO(stats.st_mode) ||
- S_ISBLK(stats.st_mode) ||
- S_ISCHR(stats.st_mode) ||
- S_ISSOCK(stats.st_mode))
- {
-
- newObj = obj_id++;
- nObjects++;
-
- printf("Object %d, %s is a ",newObj,full_name);
-
- /* We're going to create an object for it */
- if((equivalentObj = find_obj_in_list(stats.st_dev, stats.st_ino)) > 0)
- {
- /* we need to make a hard link */
- printf("hard link to object %d\n",equivalentObj);
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_HARDLINK, &stats, parent, entry->d_name, equivalentObj, NULL);
- }
- else
- {
-
- add_obj_to_list(stats.st_dev,stats.st_ino,newObj);
-
- if(S_ISLNK(stats.st_mode))
- {
-
- char symname[500];
-
- memset(symname,0, sizeof(symname));
-
- readlink(full_name,symname,sizeof(symname) -1);
-
- printf("symlink to \"%s\"\n",symname);
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SYMLINK, &stats, parent, entry->d_name, -1, symname);
-
- }
- else if(S_ISREG(stats.st_mode))
- {
- printf("file, ");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_FILE, &stats, parent, entry->d_name, -1, NULL);
-
- if(error >= 0)
- {
- int h;
- __u8 bytes[512];
- int nBytes;
- int chunk = 0;
-
- h = open(full_name,O_RDONLY);
- if(h >= 0)
- {
- memset(bytes,0xff,512);
- while((nBytes = read(h,bytes,512)) > 0)
- {
- chunk++;
- write_chunk(bytes,newObj,chunk,nBytes);
- memset(bytes,0xff,512);
- }
- if(nBytes < 0)
- error = nBytes;
-
- printf("%d data chunks written\n",chunk);
- }
- else
- {
- perror("Error opening file");
- }
- close(h);
-
- }
-
- }
- else if(S_ISSOCK(stats.st_mode))
- {
- printf("socket\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISFIFO(stats.st_mode))
- {
- printf("fifo\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISCHR(stats.st_mode))
- {
- printf("character device\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISBLK(stats.st_mode))
- {
- printf("block device\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
- }
- else if(S_ISDIR(stats.st_mode))
- {
- printf("directory\n");
- error = write_object_header(newObj, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, parent, entry->d_name, -1, NULL);
-// NCB modified 10/9/2001 process_directory(1,full_name);
- process_directory(newObj,full_name);
- }
- }
- }
- else
- {
- printf(" we don't handle this type\n");
- }
- }
- }
- }
-
- return 0;
-
-}
-
-
-int main(int argc, char *argv[])
-{
- struct stat stats;
-
- printf("mkyaffsimage: image building tool for YAFFS built "__DATE__"\n");
-
- if(argc < 3)
- {
- printf("usage: mkyaffsimage dir image_file [convert]\n");
- printf(" dir the directory tree to be converted\n");
- printf(" image_file the output file to hold the image\n");
- printf(" 'convert' produce a big-endian image from a little-endian machine\n");
- exit(1);
- }
-
- if ((argc == 4) && (!strncmp(argv[3], "convert", strlen("convert"))))
- {
- convert_endian = 1;
- }
-
- if(stat(argv[1],&stats) < 0)
- {
- printf("Could not stat %s\n",argv[1]);
- exit(1);
- }
-
- if(!S_ISDIR(stats.st_mode))
- {
- printf(" %s is not a directory\n",argv[1]);
- exit(1);
- }
-
- outFile = open(argv[2],O_CREAT | O_TRUNC | O_WRONLY, S_IREAD | S_IWRITE);
-
-
- if(outFile < 0)
- {
- printf("Could not open output file %s\n",argv[2]);
- exit(1);
- }
-
- printf("Processing directory %s into image file %s\n",argv[1],argv[2]);
- error = write_object_header(1, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, 1,"", -1, NULL);
- if(error)
- error = process_directory(YAFFS_OBJECTID_ROOT,argv[1]);
-
- close(outFile);
-
- if(error < 0)
- {
- perror("operation incomplete");
- exit(1);
- }
- else
- {
- printf("Operation complete.\n"
- "%d objects in %d directories\n"
- "%d NAND pages\n",nObjects, nDirectories, nPages);
- }
-
- close(outFile);
-
- exit(0);
-}
-
+++ /dev/null
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- * Acknowledgements:
- * Luc van OostenRyck for numerous patches.
- * Nick Bane for numerous patches.
- * Nick Bane for 2.5/2.6 integration.
- * Andras Toth for mknod rdev issue.
- * Michael Fischer for finding the problem with inode inconsistency.
- * Some code bodily lifted from JFFS
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- *
- * This is the file system front-end to YAFFS that hooks it up to
- * the VFS.
- *
- * Special notes:
- * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with
- * this superblock
- * >> 2.6: sb->s_fs_info points to the yaffs_Device associated with this
- * superblock
- * >> inode->u.generic_ip points to the associated yaffs_Object.
- */
-
-const char *yaffs_fs_c_version =
- "$Id: yaffs_fs.c,v 1.63 2007/09/19 20:35:40 imcd Exp $";
-extern const char *yaffs_guts_c_version;
-
-#include <linux/version.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
-#include <linux/config.h>
-#endif
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/fs.h>
-#include <linux/proc_fs.h>
-#include <linux/smp_lock.h>
-#include <linux/pagemap.h>
-#include <linux/mtd/mtd.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-
-#include <linux/statfs.h> /* Added NCB 15-8-2003 */
-#include <asm/statfs.h>
-#define UnlockPage(p) unlock_page(p)
-#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags)
-
-/* FIXME: use sb->s_id instead ? */
-#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf)
-
-#else
-
-#include <linux/locks.h>
-#define BDEVNAME_SIZE 0
-#define yaffs_devname(sb, buf) kdevname(sb->s_dev)
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
-#define __user
-#endif
-
-#endif
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-#define WRITE_SIZE_STR "writesize"
-#define WRITE_SIZE(mtd) (mtd)->writesize
-#else
-#define WRITE_SIZE_STR "oobblock"
-#define WRITE_SIZE(mtd) (mtd)->oobblock
-#endif
-
-#include <asm/uaccess.h>
-
-#include "yportenv.h"
-#include "yaffs_guts.h"
-
-#include <linux/mtd/mtd.h>
-#include "yaffs_mtdif.h"
-#include "yaffs_mtdif1.h"
-#include "yaffs_mtdif2.h"
-
-unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS;
-unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
-
-/* Module Parameters */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-module_param(yaffs_traceMask,uint,0644);
-module_param(yaffs_wr_attempts,uint,0644);
-#else
-MODULE_PARM(yaffs_traceMask,"i");
-MODULE_PARM(yaffs_wr_attempts,"i");
-#endif
-
-/*#define T(x) printk x */
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18))
-#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private
-#else
-#define yaffs_InodeToObjectLV(iptr) (iptr)->u.generic_ip
-#endif
-
-#define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr)))
-#define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode)
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info)
-#else
-#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp)
-#endif
-
-static void yaffs_put_super(struct super_block *sb);
-
-static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
- loff_t * pos);
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs_file_flush(struct file *file, fl_owner_t id);
-#else
-static int yaffs_file_flush(struct file *file);
-#endif
-
-static int yaffs_sync_object(struct file *file, struct dentry *dentry,
- int datasync);
-
-static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir);
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
- struct nameidata *n);
-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *n);
-#else
-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry);
-#endif
-static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
- struct dentry *dentry);
-static int yaffs_unlink(struct inode *dir, struct dentry *dentry);
-static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname);
-static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t dev);
-#else
-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- int dev);
-#endif
-static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry);
-static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs_sync_fs(struct super_block *sb, int wait);
-static void yaffs_write_super(struct super_block *sb);
-#else
-static int yaffs_sync_fs(struct super_block *sb);
-static int yaffs_write_super(struct super_block *sb);
-#endif
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf);
-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
-#else
-static int yaffs_statfs(struct super_block *sb, struct statfs *buf);
-#endif
-static void yaffs_read_inode(struct inode *inode);
-
-static void yaffs_put_inode(struct inode *inode);
-static void yaffs_delete_inode(struct inode *);
-static void yaffs_clear_inode(struct inode *);
-
-static int yaffs_readpage(struct file *file, struct page *page);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_writepage(struct page *page, struct writeback_control *wbc);
-#else
-static int yaffs_writepage(struct page *page);
-#endif
-static int yaffs_prepare_write(struct file *f, struct page *pg,
- unsigned offset, unsigned to);
-static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
- unsigned to);
-
-static int yaffs_readlink(struct dentry *dentry, char __user * buffer,
- int buflen);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
-static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
-#else
-static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
-#endif
-
-static struct address_space_operations yaffs_file_address_operations = {
- .readpage = yaffs_readpage,
- .writepage = yaffs_writepage,
- .prepare_write = yaffs_prepare_write,
- .commit_write = yaffs_commit_write,
-};
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22))
-static struct file_operations yaffs_file_operations = {
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = generic_file_aio_read,
- .aio_write = generic_file_aio_write,
- .mmap = generic_file_mmap,
- .flush = yaffs_file_flush,
- .fsync = yaffs_sync_object,
- .splice_read = generic_file_splice_read,
- .splice_write = generic_file_splice_write,
-};
-
-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18))
-
-static struct file_operations yaffs_file_operations = {
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = generic_file_aio_read,
- .aio_write = generic_file_aio_write,
- .mmap = generic_file_mmap,
- .flush = yaffs_file_flush,
- .fsync = yaffs_sync_object,
- .sendfile = generic_file_sendfile,
-};
-
-#else
-
-static struct file_operations yaffs_file_operations = {
- .read = generic_file_read,
- .write = generic_file_write,
- .mmap = generic_file_mmap,
- .flush = yaffs_file_flush,
- .fsync = yaffs_sync_object,
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- .sendfile = generic_file_sendfile,
-#endif
-};
-#endif
-
-static struct inode_operations yaffs_file_inode_operations = {
- .setattr = yaffs_setattr,
-};
-
-static struct inode_operations yaffs_symlink_inode_operations = {
- .readlink = yaffs_readlink,
- .follow_link = yaffs_follow_link,
- .setattr = yaffs_setattr,
-};
-
-static struct inode_operations yaffs_dir_inode_operations = {
- .create = yaffs_create,
- .lookup = yaffs_lookup,
- .link = yaffs_link,
- .unlink = yaffs_unlink,
- .symlink = yaffs_symlink,
- .mkdir = yaffs_mkdir,
- .rmdir = yaffs_unlink,
- .mknod = yaffs_mknod,
- .rename = yaffs_rename,
- .setattr = yaffs_setattr,
-};
-
-static struct file_operations yaffs_dir_operations = {
- .read = generic_read_dir,
- .readdir = yaffs_readdir,
- .fsync = yaffs_sync_object,
-};
-
-static struct super_operations yaffs_super_ops = {
- .statfs = yaffs_statfs,
- .read_inode = yaffs_read_inode,
- .put_inode = yaffs_put_inode,
- .put_super = yaffs_put_super,
- .delete_inode = yaffs_delete_inode,
- .clear_inode = yaffs_clear_inode,
- .sync_fs = yaffs_sync_fs,
- .write_super = yaffs_write_super,
-};
-
-static void yaffs_GrossLock(yaffs_Device * dev)
-{
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs locking\n"));
-
- down(&dev->grossLock);
-}
-
-static void yaffs_GrossUnlock(yaffs_Device * dev)
-{
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs unlocking\n"));
- up(&dev->grossLock);
-
-}
-
-static int yaffs_readlink(struct dentry *dentry, char __user * buffer,
- int buflen)
-{
- unsigned char *alias;
- int ret;
-
- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
-
- yaffs_GrossLock(dev);
-
- alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
-
- yaffs_GrossUnlock(dev);
-
- if (!alias)
- return -ENOMEM;
-
- ret = vfs_readlink(dentry, buffer, buflen, alias);
- kfree(alias);
- return ret;
-}
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
-static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
-#else
-static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
-#endif
-{
- unsigned char *alias;
- int ret;
- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
-
- yaffs_GrossLock(dev);
-
- alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
-
- yaffs_GrossUnlock(dev);
-
- if (!alias)
- {
- ret = -ENOMEM;
- goto out;
- }
-
- ret = vfs_follow_link(nd, alias);
- kfree(alias);
-out:
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
- return ERR_PTR (ret);
-#else
- return ret;
-#endif
-}
-
-struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
- yaffs_Object * obj);
-
-/*
- * Lookup is used to find objects in the fs
- */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-
-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *n)
-#else
-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry)
-#endif
-{
- yaffs_Object *obj;
- struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */
-
- yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev;
-
- yaffs_GrossLock(dev);
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_lookup for %d:%s\n",
- yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
-
- obj =
- yaffs_FindObjectByName(yaffs_InodeToObject(dir),
- dentry->d_name.name);
-
- obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */
-
- /* Can't hold gross lock when calling yaffs_get_inode() */
- yaffs_GrossUnlock(dev);
-
- if (obj) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_lookup found %d\n", obj->objectId));
-
- inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
-
- if (inode) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_loookup dentry \n"));
-/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
- * d_add even if NULL inode */
-#if 0
- /*dget(dentry); // try to solve directory bug */
- d_add(dentry, inode);
-
- /* return dentry; */
- return NULL;
-#endif
- }
-
- } else {
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_lookup not found\n"));
-
- }
-
-/* added NCB for 2.5/6 compatability - forces add even if inode is
- * NULL which creates dentry hash */
- d_add(dentry, inode);
-
- return NULL;
- /* return (ERR_PTR(-EIO)); */
-
-}
-
-/* For now put inode is just for debugging
- * Put inode is called when the inode **structure** is put.
- */
-static void yaffs_put_inode(struct inode *inode)
-{
- T(YAFFS_TRACE_OS,
- ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
- atomic_read(&inode->i_count)));
-
-}
-
-/* clear is called to tell the fs to release any per-inode data it holds */
-static void yaffs_clear_inode(struct inode *inode)
-{
- yaffs_Object *obj;
- yaffs_Device *dev;
-
- obj = yaffs_InodeToObject(inode);
-
- T(YAFFS_TRACE_OS,
- ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
- atomic_read(&inode->i_count),
- obj ? "object exists" : "null object"));
-
- if (obj) {
- dev = obj->myDev;
- yaffs_GrossLock(dev);
-
- /* Clear the association between the inode and
- * the yaffs_Object.
- */
- obj->myInode = NULL;
- yaffs_InodeToObjectLV(inode) = NULL;
-
- /* If the object freeing was deferred, then the real
- * free happens now.
- * This should fix the inode inconsistency problem.
- */
-
- yaffs_HandleDeferedFree(obj);
-
- yaffs_GrossUnlock(dev);
- }
-
-}
-
-/* delete is called when the link count is zero and the inode
- * is put (ie. nobody wants to know about it anymore, time to
- * delete the file).
- * NB Must call clear_inode()
- */
-static void yaffs_delete_inode(struct inode *inode)
-{
- yaffs_Object *obj = yaffs_InodeToObject(inode);
- yaffs_Device *dev;
-
- T(YAFFS_TRACE_OS,
- ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
- atomic_read(&inode->i_count),
- obj ? "object exists" : "null object"));
-
- if (obj) {
- dev = obj->myDev;
- yaffs_GrossLock(dev);
- yaffs_DeleteFile(obj);
- yaffs_GrossUnlock(dev);
- }
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
- truncate_inode_pages (&inode->i_data, 0);
-#endif
- clear_inode(inode);
-}
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs_file_flush(struct file *file, fl_owner_t id)
-#else
-static int yaffs_file_flush(struct file *file)
-#endif
-{
- yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry);
-
- yaffs_Device *dev = obj->myDev;
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_file_flush object %d (%s)\n", obj->objectId,
- obj->dirty ? "dirty" : "clean"));
-
- yaffs_GrossLock(dev);
-
- yaffs_FlushFile(obj, 1);
-
- yaffs_GrossUnlock(dev);
-
- return 0;
-}
-
-static int yaffs_readpage_nolock(struct file *f, struct page *pg)
-{
- /* Lifted from jffs2 */
-
- yaffs_Object *obj;
- unsigned char *pg_buf;
- int ret;
-
- yaffs_Device *dev;
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage at %08x, size %08x\n",
- (unsigned)(pg->index << PAGE_CACHE_SHIFT),
- (unsigned)PAGE_CACHE_SIZE));
-
- obj = yaffs_DentryToObject(f->f_dentry);
-
- dev = obj->myDev;
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- BUG_ON(!PageLocked(pg));
-#else
- if (!PageLocked(pg))
- PAGE_BUG(pg);
-#endif
-
- pg_buf = kmap(pg);
- /* FIXME: Can kmap fail? */
-
- yaffs_GrossLock(dev);
-
- ret =
- yaffs_ReadDataFromFile(obj, pg_buf, pg->index << PAGE_CACHE_SHIFT,
- PAGE_CACHE_SIZE);
-
- yaffs_GrossUnlock(dev);
-
- if (ret >= 0)
- ret = 0;
-
- if (ret) {
- ClearPageUptodate(pg);
- SetPageError(pg);
- } else {
- SetPageUptodate(pg);
- ClearPageError(pg);
- }
-
- flush_dcache_page(pg);
- kunmap(pg);
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage done\n"));
- return ret;
-}
-
-static int yaffs_readpage_unlock(struct file *f, struct page *pg)
-{
- int ret = yaffs_readpage_nolock(f, pg);
- UnlockPage(pg);
- return ret;
-}
-
-static int yaffs_readpage(struct file *f, struct page *pg)
-{
- return yaffs_readpage_unlock(f, pg);
-}
-
-/* writepage inspired by/stolen from smbfs */
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_writepage(struct page *page, struct writeback_control *wbc)
-#else
-static int yaffs_writepage(struct page *page)
-#endif
-{
- struct address_space *mapping = page->mapping;
- loff_t offset = (loff_t) page->index << PAGE_CACHE_SHIFT;
- struct inode *inode;
- unsigned long end_index;
- char *buffer;
- yaffs_Object *obj;
- int nWritten = 0;
- unsigned nBytes;
-
- if (!mapping)
- BUG();
- inode = mapping->host;
- if (!inode)
- BUG();
-
- if (offset > inode->i_size) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG
- "yaffs_writepage at %08x, inode size = %08x!!!\n",
- (unsigned)(page->index << PAGE_CACHE_SHIFT),
- (unsigned)inode->i_size));
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG " -> don't care!!\n"));
- unlock_page(page);
- return 0;
- }
-
- end_index = inode->i_size >> PAGE_CACHE_SHIFT;
-
- /* easy case */
- if (page->index < end_index) {
- nBytes = PAGE_CACHE_SIZE;
- } else {
- nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1);
- }
-
- get_page(page);
-
- buffer = kmap(page);
-
- obj = yaffs_InodeToObject(inode);
- yaffs_GrossLock(obj->myDev);
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_writepage at %08x, size %08x\n",
- (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "writepag0: obj = %05x, ino = %05x\n",
- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
-
- nWritten =
- yaffs_WriteDataToFile(obj, buffer, page->index << PAGE_CACHE_SHIFT,
- nBytes, 0);
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "writepag1: obj = %05x, ino = %05x\n",
- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
-
- yaffs_GrossUnlock(obj->myDev);
-
- kunmap(page);
- SetPageUptodate(page);
- UnlockPage(page);
- put_page(page);
-
- return (nWritten == nBytes) ? 0 : -ENOSPC;
-}
-
-static int yaffs_prepare_write(struct file *f, struct page *pg,
- unsigned offset, unsigned to)
-{
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_prepair_write\n"));
- if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
- return yaffs_readpage_nolock(f, pg);
-
- return 0;
-
-}
-
-static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
- unsigned to)
-{
-
- void *addr = page_address(pg) + offset;
- loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
- int nBytes = to - offset;
- int nWritten;
-
- unsigned spos = pos;
- unsigned saddr = (unsigned)addr;
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr,
- spos, nBytes));
-
- nWritten = yaffs_file_write(f, addr, nBytes, &pos);
-
- if (nWritten != nBytes) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG
- "yaffs_commit_write not same size nWritten %d nBytes %d\n",
- nWritten, nBytes));
- SetPageError(pg);
- ClearPageUptodate(pg);
- } else {
- SetPageUptodate(pg);
- }
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_commit_write returning %d\n",
- nWritten == nBytes ? 0 : nWritten));
-
- return nWritten == nBytes ? 0 : nWritten;
-
-}
-
-static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj)
-{
- if (inode && obj) {
-
-
- /* Check mode against the variant type and attempt to repair if broken. */
- __u32 mode = obj->yst_mode;
- switch( obj->variantType ){
- case YAFFS_OBJECT_TYPE_FILE :
- if( ! S_ISREG(mode) ){
- obj->yst_mode &= ~S_IFMT;
- obj->yst_mode |= S_IFREG;
- }
-
- break;
- case YAFFS_OBJECT_TYPE_SYMLINK :
- if( ! S_ISLNK(mode) ){
- obj->yst_mode &= ~S_IFMT;
- obj->yst_mode |= S_IFLNK;
- }
-
- break;
- case YAFFS_OBJECT_TYPE_DIRECTORY :
- if( ! S_ISDIR(mode) ){
- obj->yst_mode &= ~S_IFMT;
- obj->yst_mode |= S_IFDIR;
- }
-
- break;
- case YAFFS_OBJECT_TYPE_UNKNOWN :
- case YAFFS_OBJECT_TYPE_HARDLINK :
- case YAFFS_OBJECT_TYPE_SPECIAL :
- default:
- /* TODO? */
- break;
- }
-
- inode->i_ino = obj->objectId;
- inode->i_mode = obj->yst_mode;
- inode->i_uid = obj->yst_uid;
- inode->i_gid = obj->yst_gid;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
- inode->i_blksize = inode->i_sb->s_blocksize;
-#endif
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-
- inode->i_rdev = old_decode_dev(obj->yst_rdev);
- inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
- inode->i_atime.tv_nsec = 0;
- inode->i_mtime.tv_sec = (time_t) obj->yst_mtime;
- inode->i_mtime.tv_nsec = 0;
- inode->i_ctime.tv_sec = (time_t) obj->yst_ctime;
- inode->i_ctime.tv_nsec = 0;
-#else
- inode->i_rdev = obj->yst_rdev;
- inode->i_atime = obj->yst_atime;
- inode->i_mtime = obj->yst_mtime;
- inode->i_ctime = obj->yst_ctime;
-#endif
- inode->i_size = yaffs_GetObjectFileLength(obj);
- inode->i_blocks = (inode->i_size + 511) >> 9;
-
- inode->i_nlink = yaffs_GetObjectLinkCount(obj);
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG
- "yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
- inode->i_mode, inode->i_uid, inode->i_gid,
- (int)inode->i_size, atomic_read(&inode->i_count)));
-
- switch (obj->yst_mode & S_IFMT) {
- default: /* fifo, device or socket */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- init_special_inode(inode, obj->yst_mode,
- old_decode_dev(obj->yst_rdev));
-#else
- init_special_inode(inode, obj->yst_mode,
- (dev_t) (obj->yst_rdev));
-#endif
- break;
- case S_IFREG: /* file */
- inode->i_op = &yaffs_file_inode_operations;
- inode->i_fop = &yaffs_file_operations;
- inode->i_mapping->a_ops =
- &yaffs_file_address_operations;
- break;
- case S_IFDIR: /* directory */
- inode->i_op = &yaffs_dir_inode_operations;
- inode->i_fop = &yaffs_dir_operations;
- break;
- case S_IFLNK: /* symlink */
- inode->i_op = &yaffs_symlink_inode_operations;
- break;
- }
-
- yaffs_InodeToObjectLV(inode) = obj;
-
- obj->myInode = inode;
-
- } else {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_FileInode invalid parameters\n"));
- }
-
-}
-
-struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
- yaffs_Object * obj)
-{
- struct inode *inode;
-
- if (!sb) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_get_inode for NULL super_block!!\n"));
- return NULL;
-
- }
-
- if (!obj) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_get_inode for NULL object!!\n"));
- return NULL;
-
- }
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_get_inode for object %d\n", obj->objectId));
-
- inode = iget(sb, obj->objectId);
-
- /* NB Side effect: iget calls back to yaffs_read_inode(). */
- /* iget also increments the inode's i_count */
- /* NB You can't be holding grossLock or deadlock will happen! */
-
- return inode;
-}
-
-static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
- loff_t * pos)
-{
- yaffs_Object *obj;
- int nWritten, ipos;
- struct inode *inode;
- yaffs_Device *dev;
-
- obj = yaffs_DentryToObject(f->f_dentry);
-
- dev = obj->myDev;
-
- yaffs_GrossLock(dev);
-
- inode = f->f_dentry->d_inode;
-
- if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) {
- ipos = inode->i_size;
- } else {
- ipos = *pos;
- }
-
- if (!obj) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_file_write: hey obj is null!\n"));
- } else {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG
- "yaffs_file_write about to write writing %d bytes"
- "to object %d at %d\n",
- n, obj->objectId, ipos));
- }
-
- nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0);
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_file_write writing %d bytes, %d written at %d\n",
- n, nWritten, ipos));
- if (nWritten > 0) {
- ipos += nWritten;
- *pos = ipos;
- if (ipos > inode->i_size) {
- inode->i_size = ipos;
- inode->i_blocks = (ipos + 511) >> 9;
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG
- "yaffs_file_write size updated to %d bytes, "
- "%d blocks\n",
- ipos, (int)(inode->i_blocks)));
- }
-
- }
- yaffs_GrossUnlock(dev);
- return nWritten == 0 ? -ENOSPC : nWritten;
-}
-
-static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
-{
- yaffs_Object *obj;
- yaffs_Device *dev;
- struct inode *inode = f->f_dentry->d_inode;
- unsigned long offset, curoffs;
- struct list_head *i;
- yaffs_Object *l;
-
- char name[YAFFS_MAX_NAME_LENGTH + 1];
-
- obj = yaffs_DentryToObject(f->f_dentry);
- dev = obj->myDev;
-
- yaffs_GrossLock(dev);
-
- offset = f->f_pos;
-
- T(YAFFS_TRACE_OS, ("yaffs_readdir: starting at %d\n", (int)offset));
-
- if (offset == 0) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_readdir: entry . ino %d \n",
- (int)inode->i_ino));
- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR)
- < 0) {
- goto out;
- }
- offset++;
- f->f_pos++;
- }
- if (offset == 1) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_readdir: entry .. ino %d \n",
- (int)f->f_dentry->d_parent->d_inode->i_ino));
- if (filldir
- (dirent, "..", 2, offset,
- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) {
- goto out;
- }
- offset++;
- f->f_pos++;
- }
-
- curoffs = 1;
-
- /* If the directory has changed since the open or last call to
- readdir, rewind to after the 2 canned entries. */
-
- if (f->f_version != inode->i_version) {
- offset = 2;
- f->f_pos = offset;
- f->f_version = inode->i_version;
- }
-
- list_for_each(i, &obj->variant.directoryVariant.children) {
- curoffs++;
- if (curoffs >= offset) {
- l = list_entry(i, yaffs_Object, siblings);
-
- yaffs_GetObjectName(l, name,
- YAFFS_MAX_NAME_LENGTH + 1);
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_readdir: %s inode %d\n", name,
- yaffs_GetObjectInode(l)));
-
- if (filldir(dirent,
- name,
- strlen(name),
- offset,
- yaffs_GetObjectInode(l),
- yaffs_GetObjectType(l))
- < 0) {
- goto up_and_out;
- }
-
- offset++;
- f->f_pos++;
- }
- }
-
- up_and_out:
- out:
-
- yaffs_GrossUnlock(dev);
-
- return 0;
-}
-
-/*
- * File creation. Allocate an inode, and we're done..
- */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t rdev)
-#else
-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- int rdev)
-#endif
-{
- struct inode *inode;
-
- yaffs_Object *obj = NULL;
- yaffs_Device *dev;
-
- yaffs_Object *parent = yaffs_InodeToObject(dir);
-
- int error = -ENOSPC;
- uid_t uid = current->fsuid;
- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
-
- if((dir->i_mode & S_ISGID) && S_ISDIR(mode))
- mode |= S_ISGID;
-
- if (parent) {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_mknod: parent object %d type %d\n",
- parent->objectId, parent->variantType));
- } else {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_mknod: could not get parent object\n"));
- return -EPERM;
- }
-
- T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, "
- "mode %x dev %x\n",
- dentry->d_name.name, mode, rdev));
-
- dev = parent->myDev;
-
- yaffs_GrossLock(dev);
-
- switch (mode & S_IFMT) {
- default:
- /* Special (socket, fifo, device...) */
- T(YAFFS_TRACE_OS, (KERN_DEBUG
- "yaffs_mknod: making special\n"));
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- obj =
- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
- gid, old_encode_dev(rdev));
-#else
- obj =
- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
- gid, rdev);
-#endif
- break;
- case S_IFREG: /* file */
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n"));
- obj =
- yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
- gid);
- break;
- case S_IFDIR: /* directory */
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_mknod: making directory\n"));
- obj =
- yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
- uid, gid);
- break;
- case S_IFLNK: /* symlink */
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n"));
- obj = NULL; /* Do we ever get here? */
- break;
- }
-
- /* Can not call yaffs_get_inode() with gross lock held */
- yaffs_GrossUnlock(dev);
-
- if (obj) {
- inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
- d_instantiate(dentry, inode);
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_mknod created object %d count = %d\n",
- obj->objectId, atomic_read(&inode->i_count)));
- error = 0;
- } else {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_mknod failed making object\n"));
- error = -ENOMEM;
- }
-
- return error;
-}
-
-static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
- int retVal;
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mkdir\n"));
- retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0);
-#if 0
- /* attempt to fix dir bug - didn't work */
- if (!retVal) {
- dget(dentry);
- }
-#endif
- return retVal;
-}
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
- struct nameidata *n)
-#else
-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode)
-#endif
-{
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_create\n"));
- return yaffs_mknod(dir, dentry, mode | S_IFREG, 0);
-}
-
-static int yaffs_unlink(struct inode *dir, struct dentry *dentry)
-{
- int retVal;
-
- yaffs_Device *dev;
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_unlink %d:%s\n", (int)(dir->i_ino),
- dentry->d_name.name));
-
- dev = yaffs_InodeToObject(dir)->myDev;
-
- yaffs_GrossLock(dev);
-
- retVal = yaffs_Unlink(yaffs_InodeToObject(dir), dentry->d_name.name);
-
- if (retVal == YAFFS_OK) {
- dentry->d_inode->i_nlink--;
- dir->i_version++;
- yaffs_GrossUnlock(dev);
- mark_inode_dirty(dentry->d_inode);
- return 0;
- }
- yaffs_GrossUnlock(dev);
- return -ENOTEMPTY;
-}
-
-/*
- * Create a link...
- */
-static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
- struct dentry *dentry)
-{
- struct inode *inode = old_dentry->d_inode;
- yaffs_Object *obj = NULL;
- yaffs_Object *link = NULL;
- yaffs_Device *dev;
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_link\n"));
-
- obj = yaffs_InodeToObject(inode);
- dev = obj->myDev;
-
- yaffs_GrossLock(dev);
-
- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */
- {
- link =
- yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
- obj);
- }
-
- if (link) {
- old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj);
- d_instantiate(dentry, old_dentry->d_inode);
- atomic_inc(&old_dentry->d_inode->i_count);
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_link link count %d i_count %d\n",
- old_dentry->d_inode->i_nlink,
- atomic_read(&old_dentry->d_inode->i_count)));
-
- }
-
- yaffs_GrossUnlock(dev);
-
- if (link) {
-
- return 0;
- }
-
- return -EPERM;
-}
-
-static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
-{
- yaffs_Object *obj;
- yaffs_Device *dev;
- uid_t uid = current->fsuid;
- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_symlink\n"));
-
- dev = yaffs_InodeToObject(dir)->myDev;
- yaffs_GrossLock(dev);
- obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name,
- S_IFLNK | S_IRWXUGO, uid, gid, symname);
- yaffs_GrossUnlock(dev);
-
- if (obj) {
-
- struct inode *inode;
-
- inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
- d_instantiate(dentry, inode);
- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink created OK\n"));
- return 0;
- } else {
- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink not created\n"));
-
- }
-
- return -ENOMEM;
-}
-
-static int yaffs_sync_object(struct file *file, struct dentry *dentry,
- int datasync)
-{
-
- yaffs_Object *obj;
- yaffs_Device *dev;
-
- obj = yaffs_DentryToObject(dentry);
-
- dev = obj->myDev;
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_object\n"));
- yaffs_GrossLock(dev);
- yaffs_FlushFile(obj, 1);
- yaffs_GrossUnlock(dev);
- return 0;
-}
-
-/*
- * The VFS layer already does all the dentry stuff for rename.
- *
- * NB: POSIX says you can rename an object over an old object of the same name
- */
-static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-{
- yaffs_Device *dev;
- int retVal = YAFFS_FAIL;
- yaffs_Object *target;
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_rename\n"));
- dev = yaffs_InodeToObject(old_dir)->myDev;
-
- yaffs_GrossLock(dev);
-
- /* Check if the target is an existing directory that is not empty. */
- target =
- yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
- new_dentry->d_name.name);
-
-
-
- if (target &&
- target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
- !list_empty(&target->variant.directoryVariant.children)) {
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "target is non-empty dir\n"));
-
- retVal = YAFFS_FAIL;
- } else {
-
- /* Now does unlinking internally using shadowing mechanism */
- T(YAFFS_TRACE_OS, (KERN_DEBUG "calling yaffs_RenameObject\n"));
-
- retVal =
- yaffs_RenameObject(yaffs_InodeToObject(old_dir),
- old_dentry->d_name.name,
- yaffs_InodeToObject(new_dir),
- new_dentry->d_name.name);
-
- }
- yaffs_GrossUnlock(dev);
-
- if (retVal == YAFFS_OK) {
- if(target) {
- new_dentry->d_inode->i_nlink--;
- mark_inode_dirty(new_dentry->d_inode);
- }
-
- return 0;
- } else {
- return -ENOTEMPTY;
- }
-
-}
-
-static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
-{
- struct inode *inode = dentry->d_inode;
- int error;
- yaffs_Device *dev;
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_setattr of object %d\n",
- yaffs_InodeToObject(inode)->objectId));
-
- if ((error = inode_change_ok(inode, attr)) == 0) {
-
- dev = yaffs_InodeToObject(inode)->myDev;
- yaffs_GrossLock(dev);
- if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) ==
- YAFFS_OK) {
- error = 0;
- } else {
- error = -EPERM;
- }
- yaffs_GrossUnlock(dev);
- if (!error)
- error = inode_setattr(inode, attr);
- }
- return error;
-}
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
- struct super_block *sb = dentry->d_sb;
-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf)
-{
- yaffs_Device *dev = yaffs_SuperToDevice(sb);
-#else
-static int yaffs_statfs(struct super_block *sb, struct statfs *buf)
-{
- yaffs_Device *dev = yaffs_SuperToDevice(sb);
-#endif
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_statfs\n"));
-
- yaffs_GrossLock(dev);
-
- buf->f_type = YAFFS_MAGIC;
- buf->f_bsize = sb->s_blocksize;
- buf->f_namelen = 255;
- if (sb->s_blocksize > dev->nDataBytesPerChunk) {
-
- buf->f_blocks =
- (dev->endBlock - dev->startBlock +
- 1) * dev->nChunksPerBlock / (sb->s_blocksize /
- dev->nDataBytesPerChunk);
- buf->f_bfree =
- yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize /
- dev->nDataBytesPerChunk);
- } else {
-
- buf->f_blocks =
- (dev->endBlock - dev->startBlock +
- 1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk /
- sb->s_blocksize);
- buf->f_bfree =
- yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk /
- sb->s_blocksize);
- }
- buf->f_files = 0;
- buf->f_ffree = 0;
- buf->f_bavail = buf->f_bfree;
-
- yaffs_GrossUnlock(dev);
- return 0;
-}
-
-
-/**
-static int yaffs_do_sync_fs(struct super_block *sb)
-{
-
- yaffs_Device *dev = yaffs_SuperToDevice(sb);
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n"));
-
- if(sb->s_dirt) {
- yaffs_GrossLock(dev);
-
- if(dev)
- yaffs_CheckpointSave(dev);
-
- yaffs_GrossUnlock(dev);
-
- sb->s_dirt = 0;
- }
- return 0;
-}
-**/
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static void yaffs_write_super(struct super_block *sb)
-#else
-static int yaffs_write_super(struct super_block *sb)
-#endif
-{
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n"));
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
- return 0; /* yaffs_do_sync_fs(sb);*/
-#endif
-}
-
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs_sync_fs(struct super_block *sb, int wait)
-#else
-static int yaffs_sync_fs(struct super_block *sb)
-#endif
-{
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n"));
-
- return 0; /* yaffs_do_sync_fs(sb);*/
-
-}
-
-
-static void yaffs_read_inode(struct inode *inode)
-{
- /* NB This is called as a side effect of other functions, but
- * we had to release the lock to prevent deadlocks, so
- * need to lock again.
- */
-
- yaffs_Object *obj;
- yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb);
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_read_inode for %d\n", (int)inode->i_ino));
-
- yaffs_GrossLock(dev);
-
- obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
-
- yaffs_FillInodeFromObject(inode, obj);
-
- yaffs_GrossUnlock(dev);
-}
-
-static LIST_HEAD(yaffs_dev_list);
-
-#if 0 // not used
-static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data)
-{
- yaffs_Device *dev = yaffs_SuperToDevice(sb);
-
- if( *flags & MS_RDONLY ) {
- struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
-
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_remount_fs: %s: RO\n", dev->name ));
-
- yaffs_GrossLock(dev);
-
- yaffs_FlushEntireDeviceCache(dev);
-
- yaffs_CheckpointSave(dev);
-
- if (mtd->sync)
- mtd->sync(mtd);
-
- yaffs_GrossUnlock(dev);
- }
- else {
- T(YAFFS_TRACE_OS,
- (KERN_DEBUG "yaffs_remount_fs: %s: RW\n", dev->name ));
- }
-
- return 0;
-}
-#endif
-
-static void yaffs_put_super(struct super_block *sb)
-{
- yaffs_Device *dev = yaffs_SuperToDevice(sb);
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n"));
-
- yaffs_GrossLock(dev);
-
- yaffs_FlushEntireDeviceCache(dev);
-
- yaffs_CheckpointSave(dev);
-
- if (dev->putSuperFunc) {
- dev->putSuperFunc(sb);
- }
-
- yaffs_Deinitialise(dev);
-
- yaffs_GrossUnlock(dev);
-
- /* we assume this is protected by lock_kernel() in mount/umount */
- list_del(&dev->devList);
-
- if(dev->spareBuffer){
- YFREE(dev->spareBuffer);
- dev->spareBuffer = NULL;
- }
-
- kfree(dev);
-}
-
-
-static void yaffs_MTDPutSuper(struct super_block *sb)
-{
-
- struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
-
- if (mtd->sync) {
- mtd->sync(mtd);
- }
-
- put_mtd_device(mtd);
-}
-
-
-static void yaffs_MarkSuperBlockDirty(void *vsb)
-{
- struct super_block *sb = (struct super_block *)vsb;
-
- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb));
-// if(sb)
-// sb->s_dirt = 1;
-}
-
-typedef struct {
- int inband_tags;
- int skip_checkpoint_read;
- int skip_checkpoint_write;
- int no_cache;
-} yaffs_options;
-
-#define MAX_OPT_LEN 20
-static int yaffs_parse_options(yaffs_options *options, const char *options_str)
-{
- char cur_opt[MAX_OPT_LEN+1];
- int p;
- int error = 0;
-
- /* Parse through the options which is a comma seperated list */
-
- while(options_str && *options_str && !error){
- memset(cur_opt,0,MAX_OPT_LEN+1);
- p = 0;
-
- while(*options_str && *options_str != ','){
- if(p < MAX_OPT_LEN){
- cur_opt[p] = *options_str;
- p++;
- }
- options_str++;
- }
-
- if(!strcmp(cur_opt,"inband-tags"))
- options->inband_tags = 1;
- else if(!strcmp(cur_opt,"no-cache"))
- options->no_cache = 1;
- else if(!strcmp(cur_opt,"no-checkpoint-read"))
- options->skip_checkpoint_read = 1;
- else if(!strcmp(cur_opt,"no-checkpoint-write"))
- options->skip_checkpoint_write = 1;
- else if(!strcmp(cur_opt,"no-checkpoint")){
- options->skip_checkpoint_read = 1;
- options->skip_checkpoint_write = 1;
- } else {
- printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",cur_opt);
- error = 1;
- }
-
- }
-
- return error;
-}
-
-static struct super_block *yaffs_internal_read_super(int yaffsVersion,
- struct super_block *sb,
- void *data, int silent)
-{
- int nBlocks;
- struct inode *inode = NULL;
- struct dentry *root;
- yaffs_Device *dev = 0;
- char devname_buf[BDEVNAME_SIZE + 1];
- struct mtd_info *mtd;
- int err;
- char *data_str = (char *)data;
-
- yaffs_options options;
-
- sb->s_magic = YAFFS_MAGIC;
- sb->s_op = &yaffs_super_ops;
-
- if (!sb)
- printk(KERN_INFO "yaffs: sb is NULL\n");
- else if (!sb->s_dev)
- printk(KERN_INFO "yaffs: sb->s_dev is NULL\n");
- else if (!yaffs_devname(sb, devname_buf))
- printk(KERN_INFO "yaffs: devname is NULL\n");
- else
- printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n",
- sb->s_dev,
- yaffs_devname(sb, devname_buf));
-
- if(!data_str)
- data_str = "";
-
- printk(KERN_INFO "yaffs: passed flags \"%s\"\n",data_str);
-
- memset(&options,0,sizeof(options));
-
- if(yaffs_parse_options(&options,data_str)){
- /* Option parsing failed */
- return NULL;
- }
-
-
- sb->s_blocksize = PAGE_CACHE_SIZE;
- sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
- T(YAFFS_TRACE_OS, ("yaffs_read_super: Using yaffs%d\n", yaffsVersion));
- T(YAFFS_TRACE_OS,
- ("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize)));
-
-#ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY
- T(YAFFS_TRACE_OS,
- ("yaffs: Write verification disabled. All guarantees "
- "null and void\n"));
-#endif
-
- T(YAFFS_TRACE_ALWAYS, ("yaffs: Attempting MTD mount on %u.%u, "
- "\"%s\"\n",
- MAJOR(sb->s_dev), MINOR(sb->s_dev),
- yaffs_devname(sb, devname_buf)));
-
- /* Check it's an mtd device..... */
- if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) {
- return NULL; /* This isn't an mtd device */
- }
- /* Get the device */
- mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
- if (!mtd) {
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs: MTD device #%u doesn't appear to exist\n",
- MINOR(sb->s_dev)));
- return NULL;
- }
- /* Check it's NAND */
- if (mtd->type != MTD_NANDFLASH) {
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs: MTD device is not NAND it's type %d\n", mtd->type));
- return NULL;
- }
-
- T(YAFFS_TRACE_OS, (" erase %p\n", mtd->erase));
- T(YAFFS_TRACE_OS, (" read %p\n", mtd->read));
- T(YAFFS_TRACE_OS, (" write %p\n", mtd->write));
- T(YAFFS_TRACE_OS, (" readoob %p\n", mtd->read_oob));
- T(YAFFS_TRACE_OS, (" writeoob %p\n", mtd->write_oob));
- T(YAFFS_TRACE_OS, (" block_isbad %p\n", mtd->block_isbad));
- T(YAFFS_TRACE_OS, (" block_markbad %p\n", mtd->block_markbad));
- T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd)));
- T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize));
- T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize));
- T(YAFFS_TRACE_OS, (" size %d\n", mtd->size));
-
-#ifdef CONFIG_YAFFS_AUTO_YAFFS2
-
- if (yaffsVersion == 1 &&
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- mtd->writesize >= 2048) {
-#else
- mtd->oobblock >= 2048) {
-#endif
- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n"));
- yaffsVersion = 2;
- }
-
- /* Added NCB 26/5/2006 for completeness */
- if (yaffsVersion == 2 &&
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- mtd->writesize == 512) {
-#else
- mtd->oobblock == 512) {
-#endif
- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n"));
- yaffsVersion = 1;
- }
-
-#endif
-
- if (yaffsVersion == 2) {
- /* Check for version 2 style functions */
- if (!mtd->erase ||
- !mtd->block_isbad ||
- !mtd->block_markbad ||
- !mtd->read ||
- !mtd->write ||
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- !mtd->read_oob || !mtd->write_oob) {
-#else
- !mtd->write_ecc ||
- !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
-#endif
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs: MTD device does not support required "
- "functions\n"));;
- return NULL;
- }
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
-#else
- if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
-#endif
- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) {
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs: MTD device does not have the "
- "right page sizes\n"));
- return NULL;
- }
- } else {
- /* Check for V1 style functions */
- if (!mtd->erase ||
- !mtd->read ||
- !mtd->write ||
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- !mtd->read_oob || !mtd->write_oob) {
-#else
- !mtd->write_ecc ||
- !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
-#endif
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs: MTD device does not support required "
- "functions\n"));;
- return NULL;
- }
-
- if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK ||
- mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs: MTD device does not support have the "
- "right page sizes\n"));
- return NULL;
- }
- }
-
- /* OK, so if we got here, we have an MTD that's NAND and looks
- * like it has the right capabilities
- * Set the yaffs_Device up for mtd
- */
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
-#else
- sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
-#endif
- if (!dev) {
- /* Deep shit could not allocate device structure */
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs_read_super: Failed trying to allocate "
- "yaffs_Device. \n"));
- return NULL;
- }
-
- memset(dev, 0, sizeof(yaffs_Device));
- dev->genericDevice = mtd;
- dev->name = mtd->name;
-
- /* Set up the memory size parameters.... */
-
- nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
- dev->startBlock = 0;
- dev->endBlock = nBlocks - 1;
- dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
- dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
- dev->nReservedBlocks = 5;
- dev->nShortOpCaches = (options.no_cache) ? 0 : 10;
-
- /* ... and the functions. */
- if (yaffsVersion == 2) {
- dev->writeChunkWithTagsToNAND =
- nandmtd2_WriteChunkWithTagsToNAND;
- dev->readChunkWithTagsFromNAND =
- nandmtd2_ReadChunkWithTagsFromNAND;
- dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad;
- dev->queryNANDBlock = nandmtd2_QueryNANDBlock;
- dev->spareBuffer = YMALLOC(mtd->oobsize);
- dev->isYaffs2 = 1;
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- dev->nDataBytesPerChunk = mtd->writesize;
- dev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
-#else
- dev->nDataBytesPerChunk = mtd->oobblock;
- dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
-#endif
- nBlocks = mtd->size / mtd->erasesize;
-
- dev->nCheckpointReservedBlocks = CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS;
- dev->startBlock = 0;
- dev->endBlock = nBlocks - 1;
- } else {
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- /* use the MTD interface in yaffs_mtdif1.c */
- dev->writeChunkWithTagsToNAND =
- nandmtd1_WriteChunkWithTagsToNAND;
- dev->readChunkWithTagsFromNAND =
- nandmtd1_ReadChunkWithTagsFromNAND;
- dev->markNANDBlockBad = nandmtd1_MarkNANDBlockBad;
- dev->queryNANDBlock = nandmtd1_QueryNANDBlock;
-#else
- dev->writeChunkToNAND = nandmtd_WriteChunkToNAND;
- dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND;
-#endif
- dev->isYaffs2 = 0;
- }
- /* ... and common functions */
- dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND;
- dev->initialiseNAND = nandmtd_InitialiseNAND;
-
- dev->putSuperFunc = yaffs_MTDPutSuper;
-
- dev->superBlock = (void *)sb;
- dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty;
-
-
-#ifndef CONFIG_YAFFS_DOES_ECC
- dev->useNANDECC = 1;
-#endif
-
-#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES
- dev->wideTnodesDisabled = 1;
-#endif
-
- dev->skipCheckpointRead = options.skip_checkpoint_read;
- dev->skipCheckpointWrite = options.skip_checkpoint_write;
-
- /* we assume this is protected by lock_kernel() in mount/umount */
- list_add_tail(&dev->devList, &yaffs_dev_list);
-
- init_MUTEX(&dev->grossLock);
-
- yaffs_GrossLock(dev);
-
- err = yaffs_GutsInitialise(dev);
-
- T(YAFFS_TRACE_OS,
- ("yaffs_read_super: guts initialised %s\n",
- (err == YAFFS_OK) ? "OK" : "FAILED"));
-
- /* Release lock before yaffs_get_inode() */
- yaffs_GrossUnlock(dev);
-
- /* Create root inode */
- if (err == YAFFS_OK)
- inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0,
- yaffs_Root(dev));
-
- if (!inode)
- return NULL;
-
- inode->i_op = &yaffs_dir_inode_operations;
- inode->i_fop = &yaffs_dir_operations;
-
- T(YAFFS_TRACE_OS, ("yaffs_read_super: got root inode\n"));
-
- root = d_alloc_root(inode);
-
- T(YAFFS_TRACE_OS, ("yaffs_read_super: d_alloc_root done\n"));
-
- if (!root) {
- iput(inode);
- return NULL;
- }
- sb->s_root = root;
-
- T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n"));
- return sb;
-}
-
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
- int silent)
-{
- return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
-}
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs_read_super(struct file_system_type *fs,
- int flags, const char *dev_name,
- void *data, struct vfsmount *mnt)
-{
-
- return get_sb_bdev(fs, flags, dev_name, data,
- yaffs_internal_read_super_mtd, mnt);
-}
-#else
-static struct super_block *yaffs_read_super(struct file_system_type *fs,
- int flags, const char *dev_name,
- void *data)
-{
-
- return get_sb_bdev(fs, flags, dev_name, data,
- yaffs_internal_read_super_mtd);
-}
-#endif
-
-static struct file_system_type yaffs_fs_type = {
- .owner = THIS_MODULE,
- .name = "yaffs",
- .get_sb = yaffs_read_super,
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
-};
-#else
-static struct super_block *yaffs_read_super(struct super_block *sb, void *data,
- int silent)
-{
- return yaffs_internal_read_super(1, sb, data, silent);
-}
-
-static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super,
- FS_REQUIRES_DEV);
-#endif
-
-
-#ifdef CONFIG_YAFFS_YAFFS2
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
- int silent)
-{
- return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
-}
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static int yaffs2_read_super(struct file_system_type *fs,
- int flags, const char *dev_name, void *data,
- struct vfsmount *mnt)
-{
- return get_sb_bdev(fs, flags, dev_name, data,
- yaffs2_internal_read_super_mtd, mnt);
-}
-#else
-static struct super_block *yaffs2_read_super(struct file_system_type *fs,
- int flags, const char *dev_name,
- void *data)
-{
-
- return get_sb_bdev(fs, flags, dev_name, data,
- yaffs2_internal_read_super_mtd);
-}
-#endif
-
-static struct file_system_type yaffs2_fs_type = {
- .owner = THIS_MODULE,
- .name = "yaffs2",
- .get_sb = yaffs2_read_super,
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
-};
-#else
-static struct super_block *yaffs2_read_super(struct super_block *sb,
- void *data, int silent)
-{
- return yaffs_internal_read_super(2, sb, data, silent);
-}
-
-static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super,
- FS_REQUIRES_DEV);
-#endif
-
-#endif /* CONFIG_YAFFS_YAFFS2 */
-
-static struct proc_dir_entry *my_proc_entry;
-
-static char *yaffs_dump_dev(char *buf, yaffs_Device * dev)
-{
- buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock);
- buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock);
- buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk);
- buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits);
- buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize);
- buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks);
- buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks);
- buf += sprintf(buf, "nCheckptResBlocks.. %d\n", dev->nCheckpointReservedBlocks);
- buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint);
- buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated);
- buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes);
- buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated);
- buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects);
- buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks);
- buf += sprintf(buf, "nPageWrites........ %d\n", dev->nPageWrites);
- buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads);
- buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures);
- buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies);
- buf +=
- sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections);
- buf +=
- sprintf(buf, "passiveGCs......... %d\n",
- dev->passiveGarbageCollections);
- buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites);
- buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches);
- buf += sprintf(buf, "nRetireBlocks...... %d\n", dev->nRetiredBlocks);
- buf += sprintf(buf, "eccFixed........... %d\n", dev->eccFixed);
- buf += sprintf(buf, "eccUnfixed......... %d\n", dev->eccUnfixed);
- buf += sprintf(buf, "tagsEccFixed....... %d\n", dev->tagsEccFixed);
- buf += sprintf(buf, "tagsEccUnfixed..... %d\n", dev->tagsEccUnfixed);
- buf += sprintf(buf, "cacheHits.......... %d\n", dev->cacheHits);
- buf += sprintf(buf, "nDeletedFiles...... %d\n", dev->nDeletedFiles);
- buf += sprintf(buf, "nUnlinkedFiles..... %d\n", dev->nUnlinkedFiles);
- buf +=
- sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions);
- buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC);
- buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2);
-
- return buf;
-}
-
-static int yaffs_proc_read(char *page,
- char **start,
- off_t offset, int count, int *eof, void *data)
-{
- struct list_head *item;
- char *buf = page;
- int step = offset;
- int n = 0;
-
- /* Get proc_file_read() to step 'offset' by one on each sucessive call.
- * We use 'offset' (*ppos) to indicate where we are in devList.
- * This also assumes the user has posted a read buffer large
- * enough to hold the complete output; but that's life in /proc.
- */
-
- *(int *)start = 1;
-
- /* Print header first */
- if (step == 0) {
- buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__
- "\n%s\n%s\n", yaffs_fs_c_version,
- yaffs_guts_c_version);
- }
-
- /* hold lock_kernel while traversing yaffs_dev_list */
- lock_kernel();
-
- /* Locate and print the Nth entry. Order N-squared but N is small. */
- list_for_each(item, &yaffs_dev_list) {
- yaffs_Device *dev = list_entry(item, yaffs_Device, devList);
- if (n < step) {
- n++;
- continue;
- }
- buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->name);
- buf = yaffs_dump_dev(buf, dev);
- break;
- }
- unlock_kernel();
-
- return buf - page < count ? buf - page : count;
-}
-
-/**
- * Set the verbosity of the warnings and error messages.
- *
- * Note that the names can only be a..z or _ with the current code.
- */
-
-static struct {
- char *mask_name;
- unsigned mask_bitfield;
-} mask_flags[] = {
- {"allocate", YAFFS_TRACE_ALLOCATE},
- {"always", YAFFS_TRACE_ALWAYS},
- {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
- {"buffers", YAFFS_TRACE_BUFFERS},
- {"bug", YAFFS_TRACE_BUG},
- {"checkpt", YAFFS_TRACE_CHECKPOINT},
- {"deletion", YAFFS_TRACE_DELETION},
- {"erase", YAFFS_TRACE_ERASE},
- {"error", YAFFS_TRACE_ERROR},
- {"gc_detail", YAFFS_TRACE_GC_DETAIL},
- {"gc", YAFFS_TRACE_GC},
- {"mtd", YAFFS_TRACE_MTD},
- {"nandaccess", YAFFS_TRACE_NANDACCESS},
- {"os", YAFFS_TRACE_OS},
- {"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
- {"scan", YAFFS_TRACE_SCAN},
- {"tracing", YAFFS_TRACE_TRACING},
-
- {"verify", YAFFS_TRACE_VERIFY},
- {"verify_nand", YAFFS_TRACE_VERIFY_NAND},
- {"verify_full", YAFFS_TRACE_VERIFY_FULL},
- {"verify_all", YAFFS_TRACE_VERIFY_ALL},
-
- {"write", YAFFS_TRACE_WRITE},
- {"all", 0xffffffff},
- {"none", 0},
- {NULL, 0},
-};
-
-#define MAX_MASK_NAME_LENGTH 40
-static int yaffs_proc_write(struct file *file, const char *buf,
- unsigned long count, void *data)
-{
- unsigned rg = 0, mask_bitfield;
- char *end;
- char *mask_name;
- const char *x;
- char substring[MAX_MASK_NAME_LENGTH+1];
- int i;
- int done = 0;
- int add, len = 0;
- int pos = 0;
-
- rg = yaffs_traceMask;
-
- while (!done && (pos < count)) {
- done = 1;
- while ((pos < count) && isspace(buf[pos])) {
- pos++;
- }
-
- switch (buf[pos]) {
- case '+':
- case '-':
- case '=':
- add = buf[pos];
- pos++;
- break;
-
- default:
- add = ' ';
- break;
- }
- mask_name = NULL;
-
- mask_bitfield = simple_strtoul(buf + pos, &end, 0);
- if (end > buf + pos) {
- mask_name = "numeral";
- len = end - (buf + pos);
- pos += len;
- done = 0;
- } else {
- for(x = buf + pos, i = 0;
- (*x == '_' || (*x >='a' && *x <= 'z')) &&
- i <MAX_MASK_NAME_LENGTH; x++, i++, pos++)
- substring[i] = *x;
- substring[i] = '\0';
-
- for (i = 0; mask_flags[i].mask_name != NULL; i++) {
- if(strcmp(substring,mask_flags[i].mask_name) == 0){
- mask_name = mask_flags[i].mask_name;
- mask_bitfield = mask_flags[i].mask_bitfield;
- done = 0;
- break;
- }
- }
- }
-
- if (mask_name != NULL) {
- done = 0;
- switch(add) {
- case '-':
- rg &= ~mask_bitfield;
- break;
- case '+':
- rg |= mask_bitfield;
- break;
- case '=':
- rg = mask_bitfield;
- break;
- default:
- rg |= mask_bitfield;
- break;
- }
- }
- }
-
- yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS;
-
- printk("new trace = 0x%08X\n",yaffs_traceMask);
-
- if (rg & YAFFS_TRACE_ALWAYS) {
- for (i = 0; mask_flags[i].mask_name != NULL; i++) {
- char flag;
- flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-';
- printk("%c%s\n", flag, mask_flags[i].mask_name);
- }
- }
-
- return count;
-}
-
-/* Stuff to handle installation of file systems */
-struct file_system_to_install {
- struct file_system_type *fst;
- int installed;
-};
-
-static struct file_system_to_install fs_to_install[] = {
-//#ifdef CONFIG_YAFFS_YAFFS1
- {&yaffs_fs_type, 0},
-//#endif
-//#ifdef CONFIG_YAFFS_YAFFS2
- {&yaffs2_fs_type, 0},
-//#endif
- {NULL, 0}
-};
-
-static int __init init_yaffs_fs(void)
-{
- int error = 0;
- struct file_system_to_install *fsinst;
-
- T(YAFFS_TRACE_ALWAYS,
- ("yaffs " __DATE__ " " __TIME__ " Installing. \n"));
-
- /* Install the proc_fs entry */
- my_proc_entry = create_proc_entry("yaffs",
- S_IRUGO | S_IFREG,
- &proc_root);
-
- if (my_proc_entry) {
- my_proc_entry->write_proc = yaffs_proc_write;
- my_proc_entry->read_proc = yaffs_proc_read;
- my_proc_entry->data = NULL;
- } else {
- return -ENOMEM;
- }
-
- /* Now add the file system entries */
-
- fsinst = fs_to_install;
-
- while (fsinst->fst && !error) {
- error = register_filesystem(fsinst->fst);
- if (!error) {
- fsinst->installed = 1;
- }
- fsinst++;
- }
-
- /* Any errors? uninstall */
- if (error) {
- fsinst = fs_to_install;
-
- while (fsinst->fst) {
- if (fsinst->installed) {
- unregister_filesystem(fsinst->fst);
- fsinst->installed = 0;
- }
- fsinst++;
- }
- }
-
- return error;
-}
-
-static void __exit exit_yaffs_fs(void)
-{
-
- struct file_system_to_install *fsinst;
-
- T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__
- " removing. \n"));
-
- remove_proc_entry("yaffs", &proc_root);
-
- fsinst = fs_to_install;
-
- while (fsinst->fst) {
- if (fsinst->installed) {
- unregister_filesystem(fsinst->fst);
- fsinst->installed = 0;
- }
- fsinst++;
- }
-
-}
-
-module_init(init_yaffs_fs)
-module_exit(exit_yaffs_fs)
-
-MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
-MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- * yaffs_mtdif1.c NAND mtd interface functions for small-page NAND.
- *
- * Copyright (C) 2002 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * This module provides the interface between yaffs_nand.c and the
- * MTD API. This version is used when the MTD interface supports the
- * 'mtd_oob_ops' style calls to read_oob and write_oob, circa 2.6.17,
- * and we have small-page NAND device.
- *
- * These functions are invoked via function pointers in yaffs_nand.c.
- * This replaces functionality provided by functions in yaffs_mtdif.c
- * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are
- * called in yaffs_mtdif.c when the function pointers are NULL.
- * We assume the MTD layer is performing ECC (useNANDECC is true).
- */
-
-#include "yportenv.h"
-#include "yaffs_guts.h"
-#include "yaffs_packedtags1.h"
-#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC
-
-#include "linux/kernel.h"
-#include "linux/version.h"
-#include "linux/types.h"
-#include "linux/mtd/mtd.h"
-
-/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-
-const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.5 2007/10/29 14:59:57 imcd Exp $";
-
-#ifndef CONFIG_YAFFS_9BYTE_TAGS
-# define YTAG1_SIZE 8
-#else
-# define YTAG1_SIZE 9
-#endif
-
-#if 0
-/* Use the following nand_ecclayout with MTD when using
- * CONFIG_YAFFS_9BYTE_TAGS and the older on-NAND tags layout.
- * If you have existing Yaffs images and the byte order differs from this,
- * adjust 'oobfree' to match your existing Yaffs data.
- *
- * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the
- * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to
- * the 9th byte.
- *
- * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5
- * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P
- * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus
- * byte and B is the small-page bad-block indicator byte.
- */
-static struct nand_ecclayout nand_oob_16 = {
- .eccbytes = 6,
- .eccpos = { 8, 9, 10, 13, 14, 15 },
- .oobavail = 9,
- .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
-};
-#endif
-
-/* Write a chunk (page) of data to NAND.
- *
- * Caller always provides ExtendedTags data which are converted to a more
- * compact (packed) form for storage in NAND. A mini-ECC runs over the
- * contents of the tags meta-data; used to valid the tags when read.
- *
- * - Pack ExtendedTags to PackedTags1 form
- * - Compute mini-ECC for PackedTags1
- * - Write data and packed tags to NAND.
- *
- * Note: Due to the use of the PackedTags1 meta-data which does not include
- * a full sequence number (as found in the larger PackedTags2 form) it is
- * necessary for Yaffs to re-write a chunk/page (just once) to mark it as
- * discarded and dirty. This is not ideal: newer NAND parts are supposed
- * to be written just once. When Yaffs performs this operation, this
- * function is called with a NULL data pointer -- calling MTD write_oob
- * without data is valid usage (2.6.17).
- *
- * Any underlying MTD error results in YAFFS_FAIL.
- * Returns YAFFS_OK or YAFFS_FAIL.
- */
-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
- int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags)
-{
- struct mtd_info * mtd = dev->genericDevice;
- int chunkBytes = dev->nDataBytesPerChunk;
- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
- struct mtd_oob_ops ops;
- yaffs_PackedTags1 pt1;
- int retval;
-
- /* we assume that PackedTags1 and yaffs_Tags are compatible */
- compile_time_assertion(sizeof(yaffs_PackedTags1) == 12);
- compile_time_assertion(sizeof(yaffs_Tags) == 8);
-
- dev->nPageWrites++;
-
- yaffs_PackTags1(&pt1, etags);
- yaffs_CalcTagsECC((yaffs_Tags *)&pt1);
-
- /* When deleting a chunk, the upper layer provides only skeletal
- * etags, one with chunkDeleted set. However, we need to update the
- * tags, not erase them completely. So we use the NAND write property
- * that only zeroed-bits stick and set tag bytes to all-ones and
- * zero just the (not) deleted bit.
- */
-#ifndef CONFIG_YAFFS_9BYTE_TAGS
- if (etags->chunkDeleted) {
- memset(&pt1, 0xff, 8);
- /* clear delete status bit to indicate deleted */
- pt1.deleted = 0;
- }
-#else
- ((__u8 *)&pt1)[8] = 0xff;
- if (etags->chunkDeleted) {
- memset(&pt1, 0xff, 8);
- /* zero pageStatus byte to indicate deleted */
- ((__u8 *)&pt1)[8] = 0;
- }
-#endif
-
- memset(&ops, 0, sizeof(ops));
- ops.mode = MTD_OOB_AUTO;
- ops.len = (data) ? chunkBytes : 0;
- ops.ooblen = YTAG1_SIZE;
- ops.datbuf = (__u8 *)data;
- ops.oobbuf = (__u8 *)&pt1;
-
- retval = mtd->write_oob(mtd, addr, &ops);
- if (retval) {
- yaffs_trace(YAFFS_TRACE_MTD,
- "write_oob failed, chunk %d, mtd error %d\n",
- chunkInNAND, retval);
- }
- return retval ? YAFFS_FAIL : YAFFS_OK;
-}
-
-/* Return with empty ExtendedTags but add eccResult.
- */
-static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval)
-{
- if (etags) {
- memset(etags, 0, sizeof(*etags));
- etags->eccResult = eccResult;
- }
- return retval;
-}
-
-/* Read a chunk (page) from NAND.
- *
- * Caller expects ExtendedTags data to be usable even on error; that is,
- * all members except eccResult and blockBad are zeroed.
- *
- * - Check ECC results for data (if applicable)
- * - Check for blank/erased block (return empty ExtendedTags if blank)
- * - Check the PackedTags1 mini-ECC (correct if necessary/possible)
- * - Convert PackedTags1 to ExtendedTags
- * - Update eccResult and blockBad members to refect state.
- *
- * Returns YAFFS_OK or YAFFS_FAIL.
- */
-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
- int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags)
-{
- struct mtd_info * mtd = dev->genericDevice;
- int chunkBytes = dev->nDataBytesPerChunk;
- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
- int eccres = YAFFS_ECC_RESULT_NO_ERROR;
- struct mtd_oob_ops ops;
- yaffs_PackedTags1 pt1;
- int retval;
- int deleted;
-
- dev->nPageReads++;
-
- memset(&ops, 0, sizeof(ops));
- ops.mode = MTD_OOB_AUTO;
- ops.len = (data) ? chunkBytes : 0;
- ops.ooblen = YTAG1_SIZE;
- ops.datbuf = data;
- ops.oobbuf = (__u8 *)&pt1;
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
- /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug;
- * help it out with ops.len = ops.ooblen when ops.datbuf == NULL.
- */
- ops.len = (ops.datbuf) ? ops.len : ops.ooblen;
-#endif
- /* Read page and oob using MTD.
- * Check status and determine ECC result.
- */
- retval = mtd->read_oob(mtd, addr, &ops);
- if (retval) {
- yaffs_trace(YAFFS_TRACE_MTD,
- "read_oob failed, chunk %d, mtd error %d\n",
- chunkInNAND, retval);
- }
-
- switch (retval) {
- case 0:
- /* no error */
- break;
-
- case -EUCLEAN:
- /* MTD's ECC fixed the data */
- eccres = YAFFS_ECC_RESULT_FIXED;
- dev->eccFixed++;
- break;
-
- case -EBADMSG:
- /* MTD's ECC could not fix the data */
- dev->eccUnfixed++;
- /* fall into... */
- default:
- rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0);
- etags->blockBad = (mtd->block_isbad)(mtd, addr);
- return YAFFS_FAIL;
- }
-
- /* Check for a blank/erased chunk.
- */
- if (yaffs_CheckFF((__u8 *)&pt1, 8)) {
- /* when blank, upper layers want eccResult to be <= NO_ERROR */
- return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK);
- }
-
-#ifndef CONFIG_YAFFS_9BYTE_TAGS
- /* Read deleted status (bit) then return it to it's non-deleted
- * state before performing tags mini-ECC check. pt1.deleted is
- * inverted.
- */
- deleted = !pt1.deleted;
- pt1.deleted = 1;
-#else
- deleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7);
-#endif
-
- /* Check the packed tags mini-ECC and correct if necessary/possible.
- */
- retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1);
- switch (retval) {
- case 0:
- /* no tags error, use MTD result */
- break;
- case 1:
- /* recovered tags-ECC error */
- dev->tagsEccFixed++;
- if (eccres == YAFFS_ECC_RESULT_NO_ERROR)
- eccres = YAFFS_ECC_RESULT_FIXED;
- break;
- default:
- /* unrecovered tags-ECC error */
- dev->tagsEccUnfixed++;
- return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL);
- }
-
- /* Unpack the tags to extended form and set ECC result.
- * [set shouldBeFF just to keep yaffs_UnpackTags1 happy]
- */
- pt1.shouldBeFF = 0xFFFFFFFF;
- yaffs_UnpackTags1(etags, &pt1);
- etags->eccResult = eccres;
-
- /* Set deleted state */
- etags->chunkDeleted = deleted;
- return YAFFS_OK;
-}
-
-/* Mark a block bad.
- *
- * This is a persistant state.
- * Use of this function should be rare.
- *
- * Returns YAFFS_OK or YAFFS_FAIL.
- */
-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
-{
- struct mtd_info * mtd = dev->genericDevice;
- int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk;
- int retval;
-
- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo);
-
- retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo);
- return (retval) ? YAFFS_FAIL : YAFFS_OK;
-}
-
-/* Check any MTD prerequists.
- *
- * Returns YAFFS_OK or YAFFS_FAIL.
- */
-static int nandmtd1_TestPrerequists(struct mtd_info * mtd)
-{
- /* 2.6.18 has mtd->ecclayout->oobavail */
- /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */
- int oobavail = mtd->ecclayout->oobavail;
-
- if (oobavail < YTAG1_SIZE) {
- yaffs_trace(YAFFS_TRACE_ERROR,
- "mtd device has only %d bytes for tags, need %d\n",
- oobavail, YTAG1_SIZE);
- return YAFFS_FAIL;
- }
- return YAFFS_OK;
-}
-
-/* Query for the current state of a specific block.
- *
- * Examine the tags of the first chunk of the block and return the state:
- * - YAFFS_BLOCK_STATE_DEAD, the block is marked bad
- * - YAFFS_BLOCK_STATE_NEEDS_SCANNING, the block is in use
- * - YAFFS_BLOCK_STATE_EMPTY, the block is clean
- *
- * Always returns YAFFS_OK.
- */
-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
- yaffs_BlockState * pState, int *pSequenceNumber)
-{
- struct mtd_info * mtd = dev->genericDevice;
- int chunkNo = blockNo * dev->nChunksPerBlock;
- loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk;
- yaffs_ExtendedTags etags;
- int state = YAFFS_BLOCK_STATE_DEAD;
- int seqnum = 0;
- int retval;
-
- /* We don't yet have a good place to test for MTD config prerequists.
- * Do it here as we are called during the initial scan.
- */
- if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) {
- return YAFFS_FAIL;
- }
-
- retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags);
- etags.blockBad = (mtd->block_isbad)(mtd, addr);
- if (etags.blockBad) {
- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
- "block %d is marked bad\n", blockNo);
- state = YAFFS_BLOCK_STATE_DEAD;
- }
- else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) {
- /* bad tags, need to look more closely */
- state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
- }
- else if (etags.chunkUsed) {
- state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
- seqnum = etags.sequenceNumber;
- }
- else {
- state = YAFFS_BLOCK_STATE_EMPTY;
- }
-
- *pState = state;
- *pSequenceNumber = seqnum;
-
- /* query always succeeds */
- return YAFFS_OK;
-}
-
-#endif /*KERNEL_VERSION*/
+++ /dev/null
-/*
- * YAFFS: Yet another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- */
-
-#ifndef __YAFFS_MTDIF1_H__
-#define __YAFFS_MTDIF1_H__
-
-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
- const __u8 * data, const yaffs_ExtendedTags * tags);
-
-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
- __u8 * data, yaffs_ExtendedTags * tags);
-
-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
-
-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
- yaffs_BlockState * state, int *sequenceNumber);
-
-#endif
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