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