X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=fs%2Fyaffs2%2Fyaffs_uboot_glue.c;fp=fs%2Fyaffs2%2Fyaffs_uboot_glue.c;h=e113e4039e1f78a66d7258142df8854f6519eb06;hb=753ac610880e6e563d0384bb114f8b41df89e520;hp=0000000000000000000000000000000000000000;hpb=3874a377451e4d1f45710f5bf801dd96e8b8f67e;p=u-boot diff --git a/fs/yaffs2/yaffs_uboot_glue.c b/fs/yaffs2/yaffs_uboot_glue.c new file mode 100644 index 0000000000..e113e4039e --- /dev/null +++ b/fs/yaffs2/yaffs_uboot_glue.c @@ -0,0 +1,464 @@ +/* + * 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 "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 + +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"; + } +} + +extern nand_info_t nand_info[]; + +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 = mtd->size / mtd->erasesize - 1; + + if (end_block < start_block) { + printf("Bad start/end\n"); + goto err; + } + + chip = mtd->priv; + + /* 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 = + ((unsigned) dev->driver_context - (unsigned) nand_info)/ + sizeof(nand_info[0]); + 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()); +}