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2012-03-26fs/fat/fat_write.c: Fix GCC 4.6 warningsAnatolij Gustschin
Fix: fat_write.c: In function 'find_directory_entry': fat_write.c:826:8: warning: variable 'prevcksum' set but not used [-Wunused-but-set-variable] fat_write.c: In function 'do_fat_write': fat_write.c:933:6: warning: variable 'root_cluster' set but not used [-Wunused-but-set-variable] fat_write.c:925:12: warning: variable 'slotptr' set but not used [-Wunused-but-set-variable] Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Donggeun Kim <dg77.kim@samsung.com> Acked-by: Maximilian Schwerin <mvs@tigris.de> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-03-24FAT write: Fix compile errorsDonggeun Kim
This patch removes compile errors introduced by commit 9813b750f32c0056f0a35813b9a9ec0f68b664af 'fs/fat: Fix FAT detection to support non-DOS partition tables' fat_write.c: In function 'disk_write': fat_write.c:54: error: 'part_offset' undeclared (first use in this function) fat_write.c:54: error: (Each undeclared identifier is reported only once fat_write.c:54: error: for each function it appears in.) fat_write.c: In function 'do_fat_write': fat_write.c:950: error: 'part_size' undeclared (first use in this function) These errors only appear when this code is enabled by defining CONFIG_FAT_WRITE option. This patch was originally part of http://article.gmane.org/gmane.comp.boot-loaders.u-boot/121847 Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Maximilian Schwerin <mvs@tigris.de> Fixed patch author and added all needed SoB from the original patch and also submitter's SoB. Extended commit log. Signed-off-by: Anatolij Gustschin <agust@denx.de>
2012-01-05FAT: update the second FAT when writing a fileDonggeun Kim
After susccessful write to the FAT partition, fsck program may print warning message due to different FAT, provided that the filesystem supports two FATs. This patch makes the second FAT to be same with the first one when writing a file. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-12-20FAT: fix some issues in FAT write support codeAnatolij Gustschin
Writing a file to the FAT partition didn't work while a test using a CF card. The test was done on mpc5200 based board (powerpc). There is a number of problems in FAT write code: Compiler warning: fat_write.c: In function 'file_fat_write': fat_write.c:326: warning: 'counter' may be used uninitialized in this function fat_write.c:326: note: 'counter' was declared here 'l_filename' string is not terminated, so a file name with garbage at the end is used as a file name as shown by debug code. Return value of set_contents() is not checked properly so actually a file won't be written at all (as checked using 'fatls' after a write attempt with 'fatwrite' command). do_fat_write() doesn't return the number of written bytes if no error happened. However the return value of this function is used to show the number of written bytes in do_fat_fswrite(). The patch adds some debug code and fixes above mentioned problems and also fixes a typo in error output. NOTE: after a successful write to the FAT partition (under U-Boot) the partition was checked under Linux using fsck. The partition needed fixing FATs: -bash-3.2# fsck -a /dev/sda1 fsck 1.39 (29-May-2006) dosfsck 2.11, 12 Mar 2005, FAT32, LFN FATs differ but appear to be intact. Using first FAT. Performing changes. Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Donggeun Kim <dg77.kim@samsung.com> Cc: Aaron Williams <Aaron.Williams@cavium.com> Acked-by: Donggeun Kim <dg77.kim@samsung.com>
2011-10-26FAT: Add FAT write featureDonggeun Kim
In some cases, saving data in RAM as a file with FAT format is required. This patch allows the file to be written in FAT formatted partition. The usage is similar with reading a file. First, fat_register_device function is called before file_fat_write function in order to set target partition. Then, file_fat_write function is invoked with desired file name, start ram address for writing data, and file size. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>