include/linux/cmdline-parser.h

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