diff options
Diffstat (limited to 'fs/jffs2')
-rw-r--r-- | fs/jffs2/jffs2_1pass.c | 136 | ||||
-rw-r--r-- | fs/jffs2/jffs2_private.h | 1 |
2 files changed, 96 insertions, 41 deletions
diff --git a/fs/jffs2/jffs2_1pass.c b/fs/jffs2/jffs2_1pass.c index c3553cb4ae4..e53aa31effa 100644 --- a/fs/jffs2/jffs2_1pass.c +++ b/fs/jffs2/jffs2_1pass.c @@ -140,8 +140,10 @@ # define DEBUGF(fmt,args...) #endif -#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) +/* keeps pointer to currentlu processed partition */ +static struct part_info *current_part; +#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) /* * Support for jffs2 on top of NAND-flash * @@ -167,10 +169,10 @@ int read_jffs2_nand(size_t start, size_t len, static u8* nand_cache = NULL; static u32 nand_cache_off = (u32)-1; -static int nanddev = 0; /* nand device of current partition */ static int read_nand_cached(u32 off, u32 size, u_char *buf) { + struct mtdids *id = current_part->dev->id; u32 bytes_read = 0; size_t retlen; int cpy_bytes; @@ -190,10 +192,10 @@ static int read_nand_cached(u32 off, u32 size, u_char *buf) } } if (read_jffs2_nand(nand_cache_off, NAND_CACHE_SIZE, - &retlen, nand_cache, nanddev) < 0 || - retlen != NAND_CACHE_SIZE) { + &retlen, nand_cache, id->num) < 0 || + retlen != NAND_CACHE_SIZE) { printf("read_nand_cached: error reading nand off %#x size %d bytes\n", - nand_cache_off, NAND_CACHE_SIZE); + nand_cache_off, NAND_CACHE_SIZE); return -1; } } @@ -208,12 +210,12 @@ static int read_nand_cached(u32 off, u32 size, u_char *buf) return bytes_read; } -static void *get_fl_mem(u32 off, u32 size, void *ext_buf) +static void *get_fl_mem_nand(u32 off, u32 size, void *ext_buf) { u_char *buf = ext_buf ? (u_char*)ext_buf : (u_char*)malloc(size); if (NULL == buf) { - printf("get_fl_mem: can't alloc %d bytes\n", size); + printf("get_fl_mem_nand: can't alloc %d bytes\n", size); return NULL; } if (read_nand_cached(off, size, buf) < 0) { @@ -225,15 +227,15 @@ static void *get_fl_mem(u32 off, u32 size, void *ext_buf) return buf; } -static void *get_node_mem(u32 off) +static void *get_node_mem_nand(u32 off) { struct jffs2_unknown_node node; void *ret = NULL; - if (NULL == get_fl_mem(off, sizeof(node), &node)) + if (NULL == get_fl_mem_nand(off, sizeof(node), &node)) return NULL; - if (!(ret = get_fl_mem(off, node.magic == + if (!(ret = get_fl_mem_nand(off, node.magic == JFFS2_MAGIC_BITMASK ? node.totlen : sizeof(node), NULL))) { printf("off = %#x magic %#x type %#x node.totlen = %d\n", @@ -242,29 +244,88 @@ static void *get_node_mem(u32 off) return ret; } -static void put_fl_mem(void *buf) +static void put_fl_mem_nand(void *buf) { free(buf); } +#endif /* #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) */ + + +#if (CONFIG_COMMANDS & CFG_CMD_FLASH) +/* + * Support for jffs2 on top of NOR-flash + * + * NOR flash memory is mapped in processor's address space, + * just return address. + */ +static inline void *get_fl_mem_nor(u32 off) +{ + u32 addr = off; + struct mtdids *id = current_part->dev->id; + + extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + flash_info_t *flash = &flash_info[id->num]; + + addr += flash->start[0]; + return (void*)addr; +} + +static inline void *get_node_mem_nor(u32 off) +{ + return (void*)get_fl_mem_nor(off); +} +#endif /* #if (CONFIG_COMMANDS & CFG_CMD_FLASH) */ -#else /* defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) */ +/* + * Generic jffs2 raw memory and node read routines. + * + */ static inline void *get_fl_mem(u32 off, u32 size, void *ext_buf) { + struct mtdids *id = current_part->dev->id; + +#if (CONFIG_COMMANDS & CFG_CMD_FLASH) + if (id->type == MTD_DEV_TYPE_NOR) + return get_fl_mem_nor(off); +#endif + +#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) + if (id->type == MTD_DEV_TYPE_NAND) + return get_fl_mem_nand(off, size, ext_buf); +#endif + + printf("get_fl_mem: unknown device type, using raw offset!\n"); return (void*)off; } static inline void *get_node_mem(u32 off) { + struct mtdids *id = current_part->dev->id; + +#if (CONFIG_COMMANDS & CFG_CMD_FLASH) + if (id->type == MTD_DEV_TYPE_NOR) + return get_node_mem_nor(off); +#endif + +#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) + if (id->type == MTD_DEV_TYPE_NAND) + return get_node_mem_nand(off); +#endif + + printf("get_node_mem: unknown device type, using raw offset!\n"); return (void*)off; } static inline void put_fl_mem(void *buf) { -} - -#endif /* defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) */ +#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) + struct mtdids *id = current_part->dev->id; + if (id->type == MTD_DEV_TYPE_NAND) + return put_fl_mem_nand(buf); +#endif +} /* Compression names */ static char *compr_names[] = { @@ -457,8 +518,8 @@ static int compare_dirents(struct b_node *new, struct b_node *old) static u32 jffs2_scan_empty(u32 start_offset, struct part_info *part) { - char *max = part->offset + part->size - sizeof(struct jffs2_raw_inode); - char *offset = part->offset + start_offset; + char *max = (char *)(part->offset + part->size - sizeof(struct jffs2_raw_inode)); + char *offset = (char *)(part->offset + start_offset); u32 off; while (offset < max && @@ -468,11 +529,11 @@ jffs2_scan_empty(u32 start_offset, struct part_info *part) if (((u32)offset & ((1 << SPIN_BLKSIZE)-1)) == 0) break; } - return offset - part->offset; + return (u32)offset - part->offset; } -static u32 -jffs_init_1pass_list(struct part_info *part) +void +jffs2_free_cache(struct part_info *part) { struct b_lists *pL; @@ -482,6 +543,15 @@ jffs_init_1pass_list(struct part_info *part) free_nodes(&pL->dir); free(pL); } +} + +static u32 +jffs_init_1pass_list(struct part_info *part) +{ + struct b_lists *pL; + + jffs2_free_cache(part); + if (NULL != (part->jffs2_priv = malloc(sizeof(struct b_lists)))) { pL = (struct b_lists *)part->jffs2_priv; @@ -979,25 +1049,13 @@ jffs2_1pass_rescan_needed(struct part_info *part) DEBUGF ("rescan: First time in use\n"); return 1; } + /* if we have no list, we need to rescan */ if (pL->frag.listCount == 0) { DEBUGF ("rescan: fraglist zero\n"); return 1; } - /* or if we are scanning a new partition */ - if (pL->partOffset != part->offset) { - DEBUGF ("rescan: different partition\n"); - return 1; - } - -#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) - if (nanddev != (int)part->usr_priv - 1) { - DEBUGF ("rescan: nand device changed\n"); - return -1; - } -#endif /* defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) */ - /* but suppose someone reflashed a partition at the same offset... */ b = pL->dir.listHead; while (b) { @@ -1087,10 +1145,6 @@ jffs2_1pass_build_lists(struct part_info * part) u32 counterF = 0; u32 counterN = 0; -#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) - nanddev = (int)part->usr_priv - 1; -#endif /* defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) */ - /* turn off the lcd. Refreshing the lcd adds 50% overhead to the */ /* jffs2 list building enterprise nope. in newer versions the overhead is */ /* only about 5 %. not enough to inconvenience people for. */ @@ -1099,7 +1153,6 @@ jffs2_1pass_build_lists(struct part_info * part) /* if we are building a list we need to refresh the cache. */ jffs_init_1pass_list(part); pL = (struct b_lists *)part->jffs2_priv; - pL->partOffset = part->offset; offset = 0; puts ("Scanning JFFS2 FS: "); @@ -1217,6 +1270,9 @@ jffs2_1pass_fill_info(struct b_lists * pL, struct b_jffs2_info * piL) static struct b_lists * jffs2_get_list(struct part_info * part, const char *who) { + /* copy requested part_info struct pointer to global location */ + current_part = part; + if (jffs2_1pass_rescan_needed(part)) { if (!jffs2_1pass_build_lists(part)) { printf("%s: Failed to scan JFFSv2 file structure\n", who); @@ -1232,7 +1288,7 @@ u32 jffs2_1pass_ls(struct part_info * part, const char *fname) { struct b_lists *pl; - long ret = 0; + long ret = 1; u32 inode; if (! (pl = jffs2_get_list(part, "ls"))) @@ -1259,7 +1315,7 @@ jffs2_1pass_load(char *dest, struct part_info * part, const char *fname) { struct b_lists *pl; - long ret = 0; + long ret = 1; u32 inode; if (! (pl = jffs2_get_list(part, "load"))) diff --git a/fs/jffs2/jffs2_private.h b/fs/jffs2/jffs2_private.h index d53e5764b8e..65ca6eb98f2 100644 --- a/fs/jffs2/jffs2_private.h +++ b/fs/jffs2/jffs2_private.h @@ -22,7 +22,6 @@ struct b_list { }; struct b_lists { - char *partOffset; struct b_list dir; struct b_list frag; |