u-boot.git/include/fat.h, branch v2018.01

fs/fat: Clean up open-coded sector <-> cluster conversions

2017-09-15T13:03:15+00:00

Use the clust_to_sect() helper that was introduced earlier, and add an
inverse sect_to_clust(), plus update the various spots that open-coded
this conversion previously.

Signed-off-by: Rob Clark 
Reviewed-by: Simon Glass

fs/fat: fix case for FAT shortnames

2017-09-15T13:03:14+00:00

Noticed when comparing our output to linux.  There are some lcase bits
which control whether filename and/or extension should be downcase'd.

Signed-off-by: Rob Clark 
Reviewed-by: Łukasz Majewski 
Reviewed-by: Simon Glass

fat/fs: move ls to generic implementation

2017-09-15T13:03:13+00:00

Add a generic implementation of 'ls' using opendir/readdir/closedir, and
replace fat's custom implementation.  Other filesystems should move to
the generic implementation after they add opendir/readdir/closedir
support.

Signed-off-by: Rob Clark 
Reviewed-by: Łukasz Majewski 
Reviewed-by: Simon Glass

fat/fs: remove a bunch of dead code

2017-09-15T13:03:12+00:00

Spotted by chance, when trying to remove file_fat_ls(), I noticed there
were some dead users of the API.

Signed-off-by: Rob Clark 
Acked-by: Stefan Brüns 
Reviewed-by: Simon Glass

fat/fs: convert to directory iterators

2017-09-15T13:03:11+00:00

And drop a whole lot of ugly code!

Signed-off-by: Rob Clark 
Reviewed-by: Łukasz Majewski 
Reviewed-by: Simon Glass

fs/fat: introduce new director iterators

2017-09-15T13:03:10+00:00

Untangle directory traversal into a simple iterator, to replace the
existing multi-purpose do_fat_read_at() + get_dentfromdir().

Signed-off-by: Rob Clark 
Reviewed-by: Łukasz Majewski

fs/fat: split out helper to init fsdata

2017-09-15T13:03:09+00:00

Want to re-use this in fat dirent iterator in next patch.

Signed-off-by: Rob Clark 
Reviewed-by: Łukasz Majewski 
Reviewed-by: Simon Glass

Kconfig: Migrate FS_FAT / FAT_WRITE

2017-06-03T21:55:34+00:00

Now that these symbols are in Kconfig, migrate all users.  Use imply on
a number of platforms that default to having this enabled.  As part of
this we must migrate some straglers for CMD_FAT and DOS_PARTITION.

Signed-off-by: Tom Rini

fs/fat/fatwrite: Local variable as buffer to store dir_slot entries

2016-11-29T01:09:45+00:00

fill_dir_slot use get_contents_vfatname_block as a temporary buffer for
constructing a list of dir_slot entries. To save the memory and providing
correct type of memory for above usage, a local buffer with accurate size
declaration is introduced.

The local array size 640 is used because for long file name entry,
each entry use 32 bytes, one entry can store up to 13 characters.
The maximum number of entry possible is 20. So, total size is
32*20=640bytes.

Signed-off-by: Genevieve Chan 
Signed-off-by: Tien Fong Chee

fs/fat: Do not write unmodified fat entries to disk

2016-09-23T12:55:56+00:00

The code caches 6 sectors of the FAT. On FAT traversal, the old contents
needs to be flushed to disk, but only if any FAT entries had been modified.
Explicitly flag the buffer on modification.

Currently, creating a new file traverses the whole FAT up to the first
free cluster and rewrites the on-disk blocks.

Signed-off-by: Stefan Brüns 
Reviewed-by: Lukasz Majewski