diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/mtd/partitions.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/mtd/partitions.h')
-rw-r--r-- | include/linux/mtd/partitions.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h new file mode 100644 index 000000000000..50b2edfc8f11 --- /dev/null +++ b/include/linux/mtd/partitions.h | |||
@@ -0,0 +1,75 @@ | |||
1 | /* | ||
2 | * MTD partitioning layer definitions | ||
3 | * | ||
4 | * (C) 2000 Nicolas Pitre <nico@cam.org> | ||
5 | * | ||
6 | * This code is GPL | ||
7 | * | ||
8 | * $Id: partitions.h,v 1.16 2004/11/16 18:34:40 dwmw2 Exp $ | ||
9 | */ | ||
10 | |||
11 | #ifndef MTD_PARTITIONS_H | ||
12 | #define MTD_PARTITIONS_H | ||
13 | |||
14 | #include <linux/types.h> | ||
15 | |||
16 | |||
17 | /* | ||
18 | * Partition definition structure: | ||
19 | * | ||
20 | * An array of struct partition is passed along with a MTD object to | ||
21 | * add_mtd_partitions() to create them. | ||
22 | * | ||
23 | * For each partition, these fields are available: | ||
24 | * name: string that will be used to label the partition's MTD device. | ||
25 | * size: the partition size; if defined as MTDPART_SIZ_FULL, the partition | ||
26 | * will extend to the end of the master MTD device. | ||
27 | * offset: absolute starting position within the master MTD device; if | ||
28 | * defined as MTDPART_OFS_APPEND, the partition will start where the | ||
29 | * previous one ended; if MTDPART_OFS_NXTBLK, at the next erase block. | ||
30 | * mask_flags: contains flags that have to be masked (removed) from the | ||
31 | * master MTD flag set for the corresponding MTD partition. | ||
32 | * For example, to force a read-only partition, simply adding | ||
33 | * MTD_WRITEABLE to the mask_flags will do the trick. | ||
34 | * | ||
35 | * Note: writeable partitions require their size and offset be | ||
36 | * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK). | ||
37 | */ | ||
38 | |||
39 | struct mtd_partition { | ||
40 | char *name; /* identifier string */ | ||
41 | u_int32_t size; /* partition size */ | ||
42 | u_int32_t offset; /* offset within the master MTD space */ | ||
43 | u_int32_t mask_flags; /* master MTD flags to mask out for this partition */ | ||
44 | struct nand_oobinfo *oobsel; /* out of band layout for this partition (NAND only)*/ | ||
45 | struct mtd_info **mtdp; /* pointer to store the MTD object */ | ||
46 | }; | ||
47 | |||
48 | #define MTDPART_OFS_NXTBLK (-2) | ||
49 | #define MTDPART_OFS_APPEND (-1) | ||
50 | #define MTDPART_SIZ_FULL (0) | ||
51 | |||
52 | |||
53 | int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); | ||
54 | int del_mtd_partitions(struct mtd_info *); | ||
55 | |||
56 | /* | ||
57 | * Functions dealing with the various ways of partitioning the space | ||
58 | */ | ||
59 | |||
60 | struct mtd_part_parser { | ||
61 | struct list_head list; | ||
62 | struct module *owner; | ||
63 | const char *name; | ||
64 | int (*parse_fn)(struct mtd_info *, struct mtd_partition **, unsigned long); | ||
65 | }; | ||
66 | |||
67 | extern int register_mtd_parser(struct mtd_part_parser *parser); | ||
68 | extern int deregister_mtd_parser(struct mtd_part_parser *parser); | ||
69 | extern int parse_mtd_partitions(struct mtd_info *master, const char **types, | ||
70 | struct mtd_partition **pparts, unsigned long origin); | ||
71 | |||
72 | #define put_partition_parser(p) do { module_put((p)->owner); } while(0) | ||
73 | |||
74 | #endif | ||
75 | |||