Commit Graph

7 Commits (mbed-os-5.6)

Author SHA1 Message Date
Christopher Haster e4f368d89e fatfs: Adopted the trim function in the FAT filesystem 2017-09-24 21:34:28 +01:00
Christopher Haster c0aa841ffd FAT: Added support for block sizes of 512-4096 bytes
This is necessary for support of block devices with >512 byte
blocks, such as most SPI flash parts.

- Enabled support of up to 4096 byte blocks
- Added support for heap-backed buffers using _FS_HEAPBUF
  - Necessary to avoid stack overflows
  - Avoids over-aggresive allocations of _MAX_SS
- Enabled _FS_TINY to further reduce memory footprint
  - Haven't found a downside for this yet except for possible
    thread contention
2017-06-03 07:10:48 +01:00
Christopher Haster 3ee77e36f7 FAT: Fixed volume count check when formatted without MBR
This saves 64 blocks (32KB when used with 512B blocks) and drops
the minimum storage size from 64KB to 32KB.
2017-05-25 14:24:17 -05:00
Christopher Haster 3f92a15960 FAT: Added support for multiple active filesystems
- Increased _VOLUMES to 4
- Fixed a few issues in the FATFileSystem's _fsid
- Added tests for multiple partitions of fatfs
2017-05-24 11:18:47 -05:00
Christopher Haster fd80dcc51b Filesystem: Include '.' and '..' in directory iteration
The standard is intentionally vague on if filesystems must
have '.' and '..' entries, allowing filesystems to omit this
concept completely:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/readdir.html

However, the '.' and '..' entries are common on FAT filesystems
and in most other filesystems.

This enables '.' and '..' entries in the FAT filesystem.
2017-04-13 14:30:57 -05:00
Christopher Haster 0176450c5a bd: Adopted the block storage api in the FATFileSystem 2017-02-23 16:37:13 +00:00
Simon Hughes 4acf33f436 FILESYSTEM: moved FAT filesystem implemenation to features/filesystem subdir, and fs-fat tests to features/TESTS. 2017-02-23 16:30:21 +00:00