/* * 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 * * 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 #include #include #include #include #include "nand.h" #include "yaffscfg.h" #include "yaffsfs.h" #include "yaffs_packedtags2.h" #include "yaffs_mtdif.h" #include "yaffs_mtdif2.h" #if 0 #include #else #include "malloc.h" #endif #include 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; mtd = get_nand_dev_by_index(flash_dev); if (!mtd) { pr_err("\nno NAND devices available\n"); return; } dev = calloc(1, sizeof(*dev)); mp = strdup(_mp); 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()); }