u-boot/fs/yaffs2/yaffs_uboot_glue.c

462 lines
8.9 KiB
C
Raw Normal View History

/*
* 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.
*/
/*
* yaffscfg.c The configuration for the "direct" use of yaffs.
*
* This is set up for u-boot.
*
* This version now uses the ydevconfig mechanism to set up partitions.
*/
#include <common.h>
#include <div64.h>
#include <config.h>
#include "nand.h"
#include "yaffscfg.h"
#include "yaffsfs.h"
#include "yaffs_packedtags2.h"
#include "yaffs_mtdif.h"
#include "yaffs_mtdif2.h"
#if 0
#include <errno.h>
#else
#include "malloc.h"
#endif
unsigned yaffs_trace_mask = 0x0; /* Disable logging */
static int yaffs_errno;
void yaffs_bug_fn(const char *fn, int n)
{
printf("yaffs bug at %s:%d\n", fn, n);
}
void *yaffsfs_malloc(size_t x)
{
return malloc(x);
}
void yaffsfs_free(void *x)
{
free(x);
}
void yaffsfs_SetError(int err)
{
yaffs_errno = err;
}
int yaffsfs_GetLastError(void)
{
return yaffs_errno;
}
int yaffsfs_GetError(void)
{
return yaffs_errno;
}
void yaffsfs_Lock(void)
{
}
void yaffsfs_Unlock(void)
{
}
__u32 yaffsfs_CurrentTime(void)
{
return 0;
}
void *yaffs_malloc(size_t size)
{
return malloc(size);
}
void yaffs_free(void *ptr)
{
free(ptr);
}
void yaffsfs_LocalInitialisation(void)
{
/* No locking used */
}
static const char *yaffs_file_type_str(struct yaffs_stat *stat)
{
switch (stat->st_mode & S_IFMT) {
case S_IFREG: return "regular file";
case S_IFDIR: return "directory";
case S_IFLNK: return "symlink";
default: return "unknown";
}
}
static const char *yaffs_error_str(void)
{
int error = yaffsfs_GetLastError();
if (error < 0)
error = -error;
switch (error) {
case EBUSY: return "Busy";
case ENODEV: return "No such device";
case EINVAL: return "Invalid parameter";
case ENFILE: return "Too many open files";
case EBADF: return "Bad handle";
case EACCES: return "Wrong permissions";
case EXDEV: return "Not on same device";
case ENOENT: return "No such entry";
case ENOSPC: return "Device full";
case EROFS: return "Read only file system";
case ERANGE: return "Range error";
case ENOTEMPTY: return "Not empty";
case ENAMETOOLONG: return "Name too long";
case ENOMEM: return "Out of memory";
case EFAULT: return "Fault";
case EEXIST: return "Name exists";
case ENOTDIR: return "Not a directory";
case EISDIR: return "Not permitted on a directory";
case ELOOP: return "Symlink loop";
case 0: return "No error";
default: return "Unknown error";
}
}
void cmd_yaffs_tracemask(unsigned set, unsigned mask)
{
if (set)
yaffs_trace_mask = mask;
printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
}
static int yaffs_regions_overlap(int a, int b, int x, int y)
{
return (a <= x && x <= b) ||
(a <= y && y <= b) ||
(x <= a && a <= y) ||
(x <= b && b <= y);
}
void cmd_yaffs_devconfig(char *_mp, int flash_dev,
int start_block, int end_block)
{
struct mtd_info *mtd = NULL;
struct yaffs_dev *dev = NULL;
struct yaffs_dev *chk;
char *mp = NULL;
struct nand_chip *chip;
dev = calloc(1, sizeof(*dev));
mp = strdup(_mp);
mtd = nand_info[flash_dev];
if (!dev || !mp) {
/* Alloc error */
printf("Failed to allocate memory\n");
goto err;
}
if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
printf("Flash device invalid\n");
goto err;
}
if (end_block == 0)
end_block = lldiv(mtd->size, mtd->erasesize - 1);
if (end_block < start_block) {
printf("Bad start/end\n");
goto err;
}
chip = mtd_to_nand(mtd);
/* Check for any conflicts */
yaffs_dev_rewind();
while (1) {
chk = yaffs_next_dev();
if (!chk)
break;
if (strcmp(chk->param.name, mp) == 0) {
printf("Mount point name already used\n");
goto err;
}
if (chk->driver_context == mtd &&
yaffs_regions_overlap(
chk->param.start_block, chk->param.end_block,
start_block, end_block)) {
printf("Region overlaps with partition %s\n",
chk->param.name);
goto err;
}
}
/* Seems sane, so configure */
memset(dev, 0, sizeof(*dev));
dev->param.name = mp;
dev->driver_context = mtd;
dev->param.start_block = start_block;
dev->param.end_block = end_block;
dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
dev->param.total_bytes_per_chunk = mtd->writesize;
dev->param.is_yaffs2 = 1;
dev->param.use_nand_ecc = 1;
dev->param.n_reserved_blocks = 5;
if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
dev->param.inband_tags = 1;
dev->param.n_caches = 10;
dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
dev->param.erase_fn = nandmtd_EraseBlockInNAND;
dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
dev->param.query_block_fn = nandmtd2_QueryNANDBlock;
yaffs_add_device(dev);
printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
mp, flash_dev, start_block, end_block,
dev->param.inband_tags ? "using inband tags" : "");
return;
err:
free(dev);
free(mp);
}
void cmd_yaffs_dev_ls(void)
{
struct yaffs_dev *dev;
int flash_dev;
int free_space;
yaffs_dev_rewind();
while (1) {
dev = yaffs_next_dev();
if (!dev)
return;
flash_dev = nand_mtd_to_devnum(dev->driver_context);
printf("%-10s %5d 0x%05x 0x%05x %s",
dev->param.name, flash_dev,
dev->param.start_block, dev->param.end_block,
dev->param.inband_tags ? "using inband tags, " : "");
free_space = yaffs_freespace(dev->param.name);
if (free_space < 0)
printf("not mounted\n");
else
printf("free 0x%x\n", free_space);
}
}
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);
if (outh < 0) {
printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
return;
}
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 read_a_file(char *fn)
{
int h;
int i = 0;
unsigned char b;
h = yaffs_open(fn, O_RDWR, 0);
if (h < 0) {
printf("File not found\n");
return;
}
while (yaffs_read(h, &b, 1) > 0) {
printf("%02x ", b);
i++;
if (i > 32) {
printf("\n");
i = 0;;
}
}
printf("\n");
yaffs_close(h);
}
void cmd_yaffs_mount(char *mp)
{
int retval = yaffs_mount(mp);
if (retval < 0)
printf("Error mounting %s, return value: %d, %s\n", mp,
yaffsfs_GetError(), yaffs_error_str());
}
void cmd_yaffs_umount(char *mp)
{
if (yaffs_unmount(mp) == -1)
printf("Error umounting %s, return value: %d, %s\n", mp,
yaffsfs_GetError(), yaffs_error_str());
}
void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
{
make_a_file(yaffsName, bval, sizeOfFile);
}
void cmd_yaffs_read_file(char *fn)
{
read_a_file(fn);
}
void cmd_yaffs_mread_file(char *fn, char *addr)
{
int h;
struct yaffs_stat s;
yaffs_stat(fn, &s);
printf("Copy %s to 0x%p... ", fn, addr);
h = yaffs_open(fn, O_RDWR, 0);
if (h < 0) {
printf("File not found\n");
return;
}
yaffs_read(h, addr, (int)s.st_size);
printf("\t[DONE]\n");
yaffs_close(h);
}
void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
{
int outh;
outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
if (outh < 0)
printf("Error opening file: %d, %s\n", outh, yaffs_error_str());
yaffs_write(outh, addr, size);
yaffs_close(outh);
}
void cmd_yaffs_ls(const char *mountpt, int longlist)
{
int i;
yaffs_DIR *d;
struct yaffs_dirent *de;
struct yaffs_stat stat;
char tempstr[255];
d = yaffs_opendir(mountpt);
if (!d) {
printf("opendir failed, %s\n", yaffs_error_str());
return;
}
for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
if (longlist) {
sprintf(tempstr, "%s/%s", mountpt, de->d_name);
yaffs_lstat(tempstr, &stat);
printf("%-25s\t%7ld",
de->d_name,
(long)stat.st_size);
printf(" %5d %s\n",
stat.st_ino,
yaffs_file_type_str(&stat));
} else {
printf("%s\n", de->d_name);
}
}
yaffs_closedir(d);
}
void cmd_yaffs_mkdir(const char *dir)
{
int retval = yaffs_mkdir(dir, 0);
if (retval < 0)
printf("yaffs_mkdir returning error: %d, %s\n",
retval, yaffs_error_str());
}
void cmd_yaffs_rmdir(const char *dir)
{
int retval = yaffs_rmdir(dir);
if (retval < 0)
printf("yaffs_rmdir returning error: %d, %s\n",
retval, yaffs_error_str());
}
void cmd_yaffs_rm(const char *path)
{
int retval = yaffs_unlink(path);
if (retval < 0)
printf("yaffs_unlink returning error: %d, %s\n",
retval, yaffs_error_str());
}
void cmd_yaffs_mv(const char *oldPath, const char *newPath)
{
int retval = yaffs_rename(newPath, oldPath);
if (retval < 0)
printf("yaffs_unlink returning error: %d, %s\n",
retval, yaffs_error_str());
}