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* fs: fat_write: fix the incorrect last cluster checkingWu, Josh2014-05-12-0/+3
| | | | | | | | | | | | | | | | | | | | In fat_write.c, the last clust condition check is incorrect: if ((curclust >= 0xffffff8) || (curclust >= 0xfff8)) { ... ... } For example, in FAT32 if curclust is 0x11000. It is a valid clust. But on above condition check, it will be think as a last clust. So the correct last clust check should be: in fat32, curclust >= 0xffffff8 in fat16, curclust >= 0xfff8 in fat12, curclust >= 0xff8 This patch correct the last clust check. Signed-off-by: Josh Wu <josh.wu@atmel.com>
* fs/fat: add fat12 cluster checkWu, Josh2014-05-12-1/+3
| | | | Signed-off-by: Josh Wu <josh.wu@atmel.com>
* fat: implement exists() for FAT fsStephen Warren2014-02-19-0/+1
| | | | | | | | This hooks into the generic "file exists" support added in an earlier patch, and provides an implementation for the FAT filesystem. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-18/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* fs: Move ls and read methods into ext4, fatSimon Glass2013-03-04-0/+2
| | | | | | | | | It doesn't make a lot of sense to have these methods in fs.c. They are filesystem-specific, not generic code. Add each to the relevant filesystem and remove the associated #ifdefs in fs.c. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
* FAT: use toupper/tolower instead of recoding themRichard Genoud2013-02-04-3/+0
| | | | | | | | toupper/tolower function are already declared, so use them. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* FAT: implement fat_set_blk_dev(), convert cmd_fat.cStephen Warren2012-10-25-0/+1
| | | | | | | | | | | | | This makes the FAT filesystem API more consistent with other block-based filesystems. If in the future standard multi-filesystem commands such as "ls" or "load" are implemented, having FAT work the same way as other filesystems will be necessary. Convert cmd_fat.c to the new API, so the code looks more like other files implementing the same commands for other filesystems. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* FAT: Make it possible to read from any file positionBenoît Thébaudeau2012-09-26-0/+2
| | | | | | | | | | | | | | | When storage devices contain files larger than the embedded RAM, it is useful to be able to read these files by chunks, e.g. for a software update to the embedded NAND Flash from an external storage device (USB stick, SD card, etc.). Hence, this patch makes it possible by adding a new FAT API to read files from a given position. This patch also adds this feature to the fatload command. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Wolfgang Denk <wd@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
* fat: fix FAT sector offsets overflow on large FAT partitionsAaron Williams2012-05-22-3/+3
| | | | | | | | | | | | | | | | | This patch fixes several issues where sector offsets can overflow due to being limited to 16-bits. The cases where an overflow can happen when accessing large FAT32 partitions are: - length of FAT in sectors - start sector of root directory - the sector of the first cluster These issues were observed when reading files from a 64GB FAT32 filesystem. Signed-off-by: Aaron Williams <aaron.williams@caviumnetworks.com> Tested-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* FAT: Add FAT write featureDonggeun Kim2011-10-26-0/+3
| | | | | | | | | | | | | | 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>
* fat: replace LINEAR_PREFETCH_SIZE with PREFETCH_BLOCKSSergei Shtylyov2011-10-01-1/+1
| | | | | | | | | Currently in do_fat_read() when reading FAT sectors, we have to divide down LINEAR_PREFETCH_SIZE by the sector size, whereas it's defined as 2 sectors worth of bytes. In order to avoid redundant multiplication/division, introduce #define PREFETCH_BLOCKS instead of #define LINEAR_PREFETCH_SIZE. Signed-off-by: Sergei Shtylyov <sshtylyov@mvista.com>
* fat: fix crash with big sector sizeSergei Shtylyov2011-10-01-13/+7
| | | | | | | | Apple iPod nanos have sector sizes of 2 or 4 KiB, which crashes U-Boot when it tries to read the boot sector into 512-byte buffer situated on stack. Make the FAT code indifferent to the sector size. Signed-off-by: Sergei Shtylyov <sshtylyov@mvista.com>
* VFAT: fix processing of scattered long file name entriesMikhail Zolotaryov2010-10-12-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The U-Boot code has the following bugs related to the processing of Long File Name (LFN) entries scattered across several clusters/sectors : 1) get_vfatname() function is designed to gather scattered LFN entries by cluster chain processing - that doesn't work for FAT12/16 root directory. In other words, the function expects the following input data: 1.1) FAT32 directory (which is cluster chain based); OR 1.2) FAT12/16 non-root directory (which is also cluster chain based); OR 1.3) FAT12/16 root directory (allocated as contiguous sectors area), but all necessary information MUST be within the input buffer of filesystem cluster size (thus cluster-chain jump is never initiated). In order to accomplish the last condition, root directory parsing code in do_fat_read() uses the following trick: read-out cluster-size block, process only first sector (512 bytes), then shift 512 forward, read-out cluster-size block and so on. This works great unless cluster size is equal to 512 bytes (in a case you have a small partition), or long file name entries are scattered across three sectors, see 4) for details. 2) Despite of the fact that get_vfatname() supports FAT32 root directory browsing, do_fat_read() function doesn't send current cluster number correctly, so root directory look-up doesn't work correctly. 3) get_vfatname() doesn't gather scattered entries correctly also is the case when all LFN entries are located at the end of the source cluster, but real directory entry (which must be returned) is at the only beginning of the next one. No error detected, the resulting directory entry returned contains a semi-random information (wrong size, wrong start cluster number and so on) i.e. the entry is not accessible. 4) LFN (VFAT) allows up to 20 entries (slots) each containing 26 bytes (13 UTF-16 code units) to represent a single long file name i.e. up to 520 bytes. U-Boot allocates 256 bytes buffer instead, i.e. 10 or more LFN slots record may cause buffer overflow / memory corruption. Also, it's worth to mention that 20+1 slots occupy 672 bytes space which may take more than one cluster of 512 bytes (medium-size FAT32 or small FAT16 partition) - get_vfatname() function doesn't support such case as well. The patch attached fixes these problems in the following way: - keep using 256 bytes buffer for a long file name, but safely prevent a possible buffer overflow (skip LFN processing, if it contains 10 or more slots). - explicitly specify FAT12/16 root directory parsing buffer size, instead of relying on cluster size. The value used is a double sector size (to store current sector and the next one). This fixes the first problem and increases performance on big FAT12/16 partitions; - send current cluster number (FAT32) to get_vfatname() during root directory processing; - use LFN counter to seek the real directory entry in get_vfatname() - fixes the third problem; - skip deleted entries in the root directory (to prevent bogus buffer overflow detection and LFN counter steps). Note: it's not advised to split up the patch, because a separate part may operate incorrectly. Signed-off-by: Mikhail Zolotaryov <lebon@lebon.org.ua>
* fs/fat: Big code cleanup.Wolfgang Denk2010-07-24-34/+29
| | | | | | | | - reformat - throw out macros like FAT_DPRINT and FAT_DPRINT - remove dead code Signed-off-by: Wolfgang Denk <wd@denx.de>
* Remove non-ascii characters from fat codeRemy Bohmer2008-12-04-1/+1
| | | | | | | | | | | | This code contains some non-ascii characters in comment lines and code. Most editors do not display those characters properly and editing those files results always in diffs at these places which are usually not required to be changed at all. This is error prone. So, remove those weird characters and replace them by normal C-style equivalents for which the proper defines were already in the header. Signed-off-by: Remy Bohmer <linux@bohmer.net>
* Big white-space cleanup.Wolfgang Denk2008-05-21-1/+1
| | | | | | | | | | | This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Fix checking fat32 cluster size.michael2008-03-03-1/+2
| | | | | | | | | This fixes the cluster size tests in the FAT32 file system. The current implementation of VFAT support doesn't work if the referred cluster has an offset > 16bit representation, causing "fatload" and "fatls" commands etc. to fail. Signed-off-by: michael trimarchi <trimarchi@gandalf.sssup.it>
* Fix fatload command on FAT32 formatted partitions.Wolfgang Denk2006-08-14-2/+6
| | | | Patch by Joachim Jaeger, 18 Nov 2005
* * Modify KUP4X board configuration to use SL811 driver for USB memorywdenk2004-04-23-7/+2
| | | | | | | | | | | | | | | sticks (including FAT / VFAT filesystem support) * Add SL811 Host Controller Interface driver for USB * Add CFG_I2C_EEPROM_ADDR_OVERFLOW desription to README * Patch by Pantelis Antoniou, 19 Apr 2004: Allow to use shell style syntax (i. e. ${var} ) with standard parser. Minor patches for Intracom boards. * Patch by Christian Pell, 19 Apr 2004: cleanup support for CF/IDE on PCMCIA for PXA25X
* * Patch by Stephen Williams, 01 Apr 2004:wdenk2004-04-15-0/+7
| | | | | | | Add support for Picture Elements JSE board * Patch by Christian Pell, 01 Apr 2004: Add CompactFlash support for PXA systems.
* * Patch by Thomas Elste, 10 Feb 2004:wdenk2004-02-23-0/+4
| | | | | | | | | | | | | | Add support for NET+50 CPU and ModNET50 board * Patch by Sam Song, 10 Feb 2004: Fix typos in cfi_flash.c * Patch by Leon Kukovec, 10 Feb 2004 Fixed long dir entry slot id calculation in get_vfatname * Patch by Robin Gilks, 10 Feb 2004: add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==, !=, <>, <, >, <=, >=)
* * Patch by Jian Zhang, 3 Feb 2004:wdenk2004-02-10-2/+2
| | | | | | - Changed the incorrect FAT12BUFSIZE - data_begin in fsdata can be negative. Changed it to be short. * Code cleanup
* * Patch by Pierre Aubert, 24 Nov 2003:wdenk2003-12-07-1/+1
| | | | | | | - add a return value for the fpga command - add ide_preinit() function called in ide_init if CONFIG_IDE_PREINIT is defined. If ide_preinit fails, ide_init is aborted. - fix an endianess problem in fat.h
* * Patches by Denis Peter, 9 Sep 2003:wdenk2003-09-10-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | add FAT support for IDE, SCSI and USB * Patches by Gleb Natapov, 2 Sep 2003: - cleanup of POST code for unsupported architectures - MPC824x locks way0 of data cache for use as initial RAM; this patch unlocks it after relocation to RAM and invalidates the locked entries. * Patch by Gleb Natapov, 30 Aug 2003: new I2C driver for mpc107 bridge. Now works from flash. * Patch by Dave Ellis, 11 Aug 2003: - JFFS2: fix typo in common/cmd_jffs2.c - JFFS2: fix CFG_JFFS2_SORT_FRAGMENTS option - JFFS2: remove node version 0 warning - JFFS2: accept JFFS2 PADDING nodes - SXNI855T: add AM29LV800 support - SXNI855T: move environment from EEPROM to flash - SXNI855T: boot from JFFS2 in NOR or NAND flash * Patch by Bill Hargen, 11 Aug 2003: fixes for I2C on MPC8240 - fix i2c_write routine - fix iprobe command - eliminates use of global variables, plus dead code, cleanup.
* * Fix CONFIG_NET_MULTI support in include/net.hwdenk2003-06-15-0/+208
* Patches by Kyle Harris, 13 Mar 2003: - Add FAT partition support - Add command support for FAT - Add command support for MMC ---- - Add Intel PXA support for video - Add Intel PXA support for MMC ---- - Enable MMC and FAT for lubbock board - Other misc changes for lubbock board
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