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* fs: API changes enabling extra parameter to return size of type loff_tSuriyan Ramasami2014-11-23-16/+25
| | | | | | | | | | | | | | | The sandbox/ext4/fat/generic fs commands do not gracefully deal with files greater than 2GB. Negative values are returned in such cases. To handle this, the fs functions have been modified to take an additional parameter of type "* loff_t" which is then populated. The return value of the fs functions are used only for error conditions. Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> [trini: Update board/gdsys/p1022/controlcenterd-id.c, drivers/fpga/zynqpl.c for changes] Signed-off-by: Tom Rini <trini@ti.com>
* fs: make it possible to read the filesystem UUIDChristian Gmeiner2014-11-23-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some filesystems have a UUID stored in its superblock. To allow using root=UUID=... for the kernel command line we need a way to read-out the filesystem UUID. changes rfc -> v1: - make the environment variable an option parameter. If not given, the UUID is printed out. If given, it is stored in the env variable. - corrected typos - return error codes changes v1 -> v2: - fix return code of do_fs_uuid(..) - document do_fs_uuid(..) - implement fs_uuid_unsuported(..) be more consistent with the way other optional functionality works changes v2 -> v3: - change ext4fs_uuid(..) to make use of #if .. #else .. #endif construct to get rid of unreachable code Hit any key to stop autoboot: 0 => fsuuid fsuuid - Look up a filesystem UUID Usage: fsuuid <interface> <dev>:<part> - print filesystem UUID fsuuid <interface> <dev>:<part> <varname> - set environment variable to filesystem UUID => fsuuid mmc 0:1 d9f9fc05-45ae-4a36-a616-fccce0e4f887 => fsuuid mmc 0:2 eb3db83c-7b28-499f-95ce-9e0bb21cda81 => fsuuid mmc 0:1 uuid1 => fsuuid mmc 0:2 uuid2 => printenv uuid1 uuid1=d9f9fc05-45ae-4a36-a616-fccce0e4f887 => printenv uuid2 uuid2=eb3db83c-7b28-499f-95ce-9e0bb21cda81 => Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Acked-by: Stephen Warren <swarren@nvidia.com>
* fs: implement size/fatsize/ext4sizeStephen Warren2014-08-09-0/+9
| | | | | | | | | | These commands may be used to determine the size of a file without actually reading the whole file content into memory. This may be used to determine if the file will fit into the memory buffer that will contain it. In particular, the DFU code will use it for this purpose in the next commit. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* fs: implement infrastructure for an 'exists' functionStephen Warren2014-02-19-0/+9
| | | | | | | | | | | | | | | | | | | | | | | This could be used in scripts such as: if test -e mmc 0:1 /boot/boot.scr; then load mmc 0:1 ${scriptaddr} /boot/boot.scr source ${scriptaddr} fi rather than: if load mmc 0:1 ${scriptaddr} /boot/boot.scr; then source ${scriptaddr} fi This prevents errors being printed by attempts to load non-existent files, which can be important when checking for a large set of files, such as /boot/boot.scr.uimg, /boot/boot.scr, /boot/extlinux.conf, /boot.scr.uimg, /boot.scr, /extlinux.conf. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* fs: fix generic save command implementationStephen Warren2014-02-19-0/+10
| | | | | | | | | | | | | | | | | | | | Fix a few issues with the generic "save" shell command, and fs_write() function. 1) fstypes[].write wasn't filled in for some file-systems, and isn't checked when used, which could cause crashes/... if executing save on e.g. fat/ext filesystems. 2) fs_write() requires the length argument to be non-zero, since it needs to know exactly how many bytes to write. Adjust the comments and code according to this. 3) fs_write() wasn't prototyped in <fs.h> like other generic functions; other code should be able to call this directly rather than invoking the "save" shell command. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* Fix number base handling of "load" commandWolfgang Denk2013-10-07-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As documented, almost all U-Boot commands expect numbers to be entered in hexadecimal input format. (Exception: for historical reasons, the "sleep" command takes its argument in decimal input format.) This rule was broken for the "load" command; for details please see especially commits 045fa1e "fs: add filesystem switch libary, implement ls and fsload commands" and 3f83c87 "fs: fix number base behaviour change in fatload/ext*load". In the result, the load command would always require an explicit "0x" prefix for regular (i. e. base 16 formatted) input. Change this to use the standard notation of base 16 input format. While strictly speaking this is a change of the user interface, we hope that it will not cause trouble. Stephen Warren comments (see [1]): I suppose you can change the behaviour if you want; anyone writing "0x..." for their values presumably won't be affected, and if people really do assume all values in U-Boot are in hex, presumably nobody currently relies upon using non-prefixed values with the generic load command, since it doesn't work like that right now. [1] http://article.gmane.org/gmane.comp.boot-loaders.u-boot/171172 Acked-by: Tom Rini <trini@ti.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
* fs: Add support for saving data to filesystemsSimon Glass2013-05-01-0/+2
| | | | | | | Add a new method for saving that filesystems can implement. This mirrors the existing load method. Signed-off-by: Simon Glass <sjg@chromium.org>
* sandbox: Add host filesystemSimon Glass2013-03-04-0/+1
| | | | | | | This allows reading of files from the host filesystem in sandbox. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
* fs: rename fsload command to loadStephen Warren2012-11-04-1/+1
| | | | | | | | | | | When the generic filesystem load command "fsload" was written, I felt that "load" was too generic of a name for it, since many other similar commands already existed. However, it turns out that there is already an "fsload" command, so that name cannot be used. Rename the new "fsload" to plain "load" to avoid the conflict. At least anyone who's used a Basic interpreter should feel familiar with the name! Signed-off-by: Stephen Warren <swarren@nvidia.com>
* fs: fix number base behaviour change in fatload/ext*loadStephen Warren2012-11-04-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Commit 045fa1e "fs: add filesystem switch libary, implement ls and fsload commands" unified the implementation of fatload and ext*load with the new command fsload. However, this altered the interpretation of command-line numbers from always being base-16, to requiring a "0x" prefix for base-16 numbers. Enhance do_fsload() to allow commands to specify which base to use. Use base 0, thus requiring a "0x" prefix for the new fsload command. This feels much cleaner than assuming base 16. Use base 16 for the pre-existing fatload and ext*load to prevent a change in behaviour. Use base 16 exclusively for the loadaddr environment variable, since that variable is interpreted in multiple places, so we don't want the behaviour to change. Update command help text to make it clear where numbers are assumed to be hex, and where an explicit "0x" prefix is required. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* fs: add filesystem switch libary, implement ls and fsload commandsStephen Warren2012-10-29-0/+65
Implement "ls" and "fsload" commands that act like {fat,ext2}{ls,load}, and transparently handle either file-system. This scheme could easily be extended to other filesystem types; I only didn't do it for zfs because I don't have any filesystems of that type to test with. Replace the implementation of {fat,ext[24]}{ls,load} with this new code too. Signed-off-by: Stephen Warren <swarren@nvidia.com>