1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Parsing command line, get the partitions information.
4  *
5  * Written by Cai Zhiyong <caizhiyong@huawei.com>
6  *
7  */
8 #ifndef CMDLINEPARSEH
9 #define CMDLINEPARSEH
10 
11 #include <linux/blkdev.h>
12 #include <linux/fs.h>
13 #include <linux/slab.h>
14 
15 /* partition flags */
16 #define PF_RDONLY                   0x01 /* Device is read only */
17 #define PF_POWERUP_LOCK             0x02 /* Always locked after reset */
18 
19 struct cmdline_subpart {
20 	char name[BDEVNAME_SIZE]; /* partition name, such as 'rootfs' */
21 	sector_t from;
22 	sector_t size;
23 	int flags;
24 	struct cmdline_subpart *next_subpart;
25 };
26 
27 struct cmdline_parts {
28 	char name[BDEVNAME_SIZE]; /* block device, such as 'mmcblk0' */
29 	unsigned int nr_subparts;
30 	struct cmdline_subpart *subpart;
31 	struct cmdline_parts *next_parts;
32 };
33 
34 void cmdline_parts_free(struct cmdline_parts **parts);
35 
36 int cmdline_parts_parse(struct cmdline_parts **parts, const char *cmdline);
37 
38 struct cmdline_parts *cmdline_parts_find(struct cmdline_parts *parts,
39 					 const char *bdev);
40 
41 int cmdline_parts_set(struct cmdline_parts *parts, sector_t disk_size,
42 		      int slot,
43 		      int (*add_part)(int, struct cmdline_subpart *, void *),
44 		      void *param);
45 
46 #endif /* CMDLINEPARSEH */
47