mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 01:48:52 +09:00
466 lines
9.0 KiB
C
466 lines
9.0 KiB
C
/*
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* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
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*
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* Copyright (C) 2002-2007 Aleph One Ltd.
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* for Toby Churchill Ltd and Brightstar Engineering
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*
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* Created by Charles Manning <charles@aleph1.co.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*
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* yaffscfg.c The configuration for the "direct" use of yaffs.
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*
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* This is set up for u-boot.
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*
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* This version now uses the ydevconfig mechanism to set up partitions.
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*/
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#include <common.h>
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#include <div64.h>
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#include <config.h>
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#include "nand.h"
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#include "yaffscfg.h"
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#include "yaffsfs.h"
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#include "yaffs_packedtags2.h"
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#include "yaffs_mtdif.h"
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#include "yaffs_mtdif2.h"
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#if 0
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#include <errno.h>
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#else
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#include "malloc.h"
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#endif
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unsigned yaffs_trace_mask = 0x0; /* Disable logging */
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static int yaffs_errno;
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void yaffs_bug_fn(const char *fn, int n)
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{
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printf("yaffs bug at %s:%d\n", fn, n);
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}
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void *yaffsfs_malloc(size_t x)
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{
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return malloc(x);
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}
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void yaffsfs_free(void *x)
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{
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free(x);
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}
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void yaffsfs_SetError(int err)
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{
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yaffs_errno = err;
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}
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int yaffsfs_GetLastError(void)
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{
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return yaffs_errno;
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}
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int yaffsfs_GetError(void)
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{
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return yaffs_errno;
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}
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void yaffsfs_Lock(void)
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{
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}
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void yaffsfs_Unlock(void)
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{
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}
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__u32 yaffsfs_CurrentTime(void)
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{
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return 0;
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}
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void *yaffs_malloc(size_t size)
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{
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return malloc(size);
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}
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void yaffs_free(void *ptr)
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{
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free(ptr);
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}
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void yaffsfs_LocalInitialisation(void)
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{
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/* No locking used */
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}
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static const char *yaffs_file_type_str(struct yaffs_stat *stat)
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{
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switch (stat->st_mode & S_IFMT) {
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case S_IFREG: return "regular file";
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case S_IFDIR: return "directory";
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case S_IFLNK: return "symlink";
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default: return "unknown";
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}
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}
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static const char *yaffs_error_str(void)
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{
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int error = yaffsfs_GetLastError();
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if (error < 0)
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error = -error;
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switch (error) {
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case EBUSY: return "Busy";
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case ENODEV: return "No such device";
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case EINVAL: return "Invalid parameter";
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case ENFILE: return "Too many open files";
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case EBADF: return "Bad handle";
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case EACCES: return "Wrong permissions";
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case EXDEV: return "Not on same device";
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case ENOENT: return "No such entry";
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case ENOSPC: return "Device full";
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case EROFS: return "Read only file system";
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case ERANGE: return "Range error";
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case ENOTEMPTY: return "Not empty";
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case ENAMETOOLONG: return "Name too long";
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case ENOMEM: return "Out of memory";
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case EFAULT: return "Fault";
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case EEXIST: return "Name exists";
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case ENOTDIR: return "Not a directory";
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case EISDIR: return "Not permitted on a directory";
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case ELOOP: return "Symlink loop";
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case 0: return "No error";
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default: return "Unknown error";
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}
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}
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extern nand_info_t nand_info[];
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void cmd_yaffs_tracemask(unsigned set, unsigned mask)
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{
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if (set)
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yaffs_trace_mask = mask;
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printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
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}
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static int yaffs_regions_overlap(int a, int b, int x, int y)
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{
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return (a <= x && x <= b) ||
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(a <= y && y <= b) ||
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(x <= a && a <= y) ||
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(x <= b && b <= y);
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}
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void cmd_yaffs_devconfig(char *_mp, int flash_dev,
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int start_block, int end_block)
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{
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struct mtd_info *mtd = NULL;
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struct yaffs_dev *dev = NULL;
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struct yaffs_dev *chk;
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char *mp = NULL;
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struct nand_chip *chip;
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dev = calloc(1, sizeof(*dev));
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mp = strdup(_mp);
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mtd = &nand_info[flash_dev];
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if (!dev || !mp) {
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/* Alloc error */
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printf("Failed to allocate memory\n");
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goto err;
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}
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if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
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printf("Flash device invalid\n");
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goto err;
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}
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if (end_block == 0)
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end_block = lldiv(mtd->size, mtd->erasesize - 1);
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if (end_block < start_block) {
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printf("Bad start/end\n");
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goto err;
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}
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chip = mtd->priv;
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/* Check for any conflicts */
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yaffs_dev_rewind();
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while (1) {
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chk = yaffs_next_dev();
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if (!chk)
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break;
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if (strcmp(chk->param.name, mp) == 0) {
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printf("Mount point name already used\n");
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goto err;
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}
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if (chk->driver_context == mtd &&
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yaffs_regions_overlap(
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chk->param.start_block, chk->param.end_block,
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start_block, end_block)) {
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printf("Region overlaps with partition %s\n",
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chk->param.name);
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goto err;
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}
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}
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/* Seems sane, so configure */
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memset(dev, 0, sizeof(*dev));
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dev->param.name = mp;
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dev->driver_context = mtd;
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dev->param.start_block = start_block;
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dev->param.end_block = end_block;
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dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
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dev->param.total_bytes_per_chunk = mtd->writesize;
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dev->param.is_yaffs2 = 1;
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dev->param.use_nand_ecc = 1;
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dev->param.n_reserved_blocks = 5;
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if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
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dev->param.inband_tags = 1;
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dev->param.n_caches = 10;
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dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
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dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
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dev->param.erase_fn = nandmtd_EraseBlockInNAND;
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dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
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dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
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dev->param.query_block_fn = nandmtd2_QueryNANDBlock;
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yaffs_add_device(dev);
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printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
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mp, flash_dev, start_block, end_block,
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dev->param.inband_tags ? "using inband tags" : "");
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return;
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err:
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free(dev);
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free(mp);
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}
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void cmd_yaffs_dev_ls(void)
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{
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struct yaffs_dev *dev;
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int flash_dev;
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int free_space;
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yaffs_dev_rewind();
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while (1) {
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dev = yaffs_next_dev();
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if (!dev)
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return;
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flash_dev =
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((unsigned) dev->driver_context - (unsigned) nand_info)/
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sizeof(nand_info[0]);
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printf("%-10s %5d 0x%05x 0x%05x %s",
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dev->param.name, flash_dev,
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dev->param.start_block, dev->param.end_block,
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dev->param.inband_tags ? "using inband tags, " : "");
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free_space = yaffs_freespace(dev->param.name);
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if (free_space < 0)
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printf("not mounted\n");
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else
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printf("free 0x%x\n", free_space);
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}
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}
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void make_a_file(char *yaffsName, char bval, int sizeOfFile)
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{
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int outh;
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int i;
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unsigned char buffer[100];
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outh = yaffs_open(yaffsName,
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O_CREAT | O_RDWR | O_TRUNC,
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S_IREAD | S_IWRITE);
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if (outh < 0) {
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printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
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return;
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}
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memset(buffer, bval, 100);
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do {
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i = sizeOfFile;
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if (i > 100)
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i = 100;
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sizeOfFile -= i;
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yaffs_write(outh, buffer, i);
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} while (sizeOfFile > 0);
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yaffs_close(outh);
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}
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void read_a_file(char *fn)
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{
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int h;
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int i = 0;
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unsigned char b;
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h = yaffs_open(fn, O_RDWR, 0);
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if (h < 0) {
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printf("File not found\n");
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return;
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}
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while (yaffs_read(h, &b, 1) > 0) {
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printf("%02x ", b);
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i++;
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if (i > 32) {
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printf("\n");
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i = 0;;
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}
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}
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printf("\n");
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yaffs_close(h);
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}
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void cmd_yaffs_mount(char *mp)
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{
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int retval = yaffs_mount(mp);
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if (retval < 0)
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printf("Error mounting %s, return value: %d, %s\n", mp,
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yaffsfs_GetError(), yaffs_error_str());
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}
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void cmd_yaffs_umount(char *mp)
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{
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if (yaffs_unmount(mp) == -1)
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printf("Error umounting %s, return value: %d, %s\n", mp,
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yaffsfs_GetError(), yaffs_error_str());
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}
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void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
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{
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make_a_file(yaffsName, bval, sizeOfFile);
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}
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void cmd_yaffs_read_file(char *fn)
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{
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read_a_file(fn);
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}
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void cmd_yaffs_mread_file(char *fn, char *addr)
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{
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int h;
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struct yaffs_stat s;
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yaffs_stat(fn, &s);
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printf("Copy %s to 0x%p... ", fn, addr);
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h = yaffs_open(fn, O_RDWR, 0);
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if (h < 0) {
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printf("File not found\n");
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return;
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}
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yaffs_read(h, addr, (int)s.st_size);
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printf("\t[DONE]\n");
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yaffs_close(h);
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}
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void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
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{
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int outh;
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outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
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if (outh < 0)
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printf("Error opening file: %d, %s\n", outh, yaffs_error_str());
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yaffs_write(outh, addr, size);
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yaffs_close(outh);
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}
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void cmd_yaffs_ls(const char *mountpt, int longlist)
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{
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int i;
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yaffs_DIR *d;
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struct yaffs_dirent *de;
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struct yaffs_stat stat;
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char tempstr[255];
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d = yaffs_opendir(mountpt);
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if (!d) {
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printf("opendir failed, %s\n", yaffs_error_str());
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return;
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}
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for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
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if (longlist) {
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sprintf(tempstr, "%s/%s", mountpt, de->d_name);
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yaffs_lstat(tempstr, &stat);
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printf("%-25s\t%7ld",
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de->d_name,
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(long)stat.st_size);
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printf(" %5d %s\n",
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stat.st_ino,
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yaffs_file_type_str(&stat));
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} else {
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printf("%s\n", de->d_name);
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}
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}
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yaffs_closedir(d);
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}
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void cmd_yaffs_mkdir(const char *dir)
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{
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int retval = yaffs_mkdir(dir, 0);
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if (retval < 0)
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printf("yaffs_mkdir returning error: %d, %s\n",
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retval, yaffs_error_str());
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}
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void cmd_yaffs_rmdir(const char *dir)
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{
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int retval = yaffs_rmdir(dir);
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if (retval < 0)
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printf("yaffs_rmdir returning error: %d, %s\n",
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retval, yaffs_error_str());
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}
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void cmd_yaffs_rm(const char *path)
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{
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int retval = yaffs_unlink(path);
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if (retval < 0)
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printf("yaffs_unlink returning error: %d, %s\n",
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retval, yaffs_error_str());
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}
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void cmd_yaffs_mv(const char *oldPath, const char *newPath)
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{
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int retval = yaffs_rename(newPath, oldPath);
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if (retval < 0)
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printf("yaffs_unlink returning error: %d, %s\n",
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retval, yaffs_error_str());
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}
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