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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _BLKDEV_H
#define _BLKDEV_H
#include <sys/types.h>
struct media;
enum blk_type { blkdev_unknown, blkdev_disk, blkdev_partition };
struct blkdev {
char *devpath;
enum blk_type type;
struct media *media;
// If type == blkdev_disk then nr_parts = number of partitions
int nr_parts;
// If type == blkdev_partition then part_type = partition type
uint8_t part_type;
// If type == blkdev_partition
struct blkdev *disk;
unsigned int nr_sec;
int major;
int minor;
};
struct blkdev_list {
struct blkdev *dev;
struct blkdev_list *next;
};
typedef struct blkdev blkdev_t;
typedef struct blkdev_list blkdev_list_t;
blkdev_t *blkdev_create(blkdev_t *disk, char *devpath, int major, int minor, struct media *media, char *type);
blkdev_t *blkdev_create_pending_partition(blkdev_t *disk, char *dev_fspath, int major, int minor, struct media *media);
blkdev_t *blkdev_lookup_by_path(char *devpath);
blkdev_t *blkdev_lookup_by_devno(int maj, int min);
char *blkdev_get_devpath(blkdev_t *blk);
void blkdev_destroy(blkdev_t *blk);
int blkdev_get_num_pending_partitions(blkdev_t *blk);
int blkdev_refresh(blkdev_t *blk);
#endif
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