LXR linux/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
  18struct 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
  26struct 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
  33void cmdline_parts_free(struct cmdline_parts **parts);
  34
  35int cmdline_parts_parse(struct cmdline_parts **parts, const char *cmdline);
  36
  37struct cmdline_parts *cmdline_parts_find(struct cmdline_parts *parts,
  38                                         const char *bdev);
  39
  40int 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 */
  46