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* devfs: Add optional truncate callback for device filesTeresa Remmet2017-01-111-0/+5
| | | | | | | | Not all device files have trivial fix device sizes like static ubi volumes. Here the device file size equals the image size it contains. Signed-off-by: Teresa Remmet <t.remmet@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: Fix erasing of devices >4GiBSascha Hauer2016-02-091-1/+1
| | | | | | | | | When a device >4GiB is erased, not only the offset can be bigger than 4GiB, but also the size. This happens with the simplest command to erase a device: erase /dev/nand0. Make the size argument a 64bit type to make this work. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* devfs: Add symlink supportSascha Hauer2016-01-081-1/+26
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: devfs: Allow mounting only on /dev/Sascha Hauer2015-10-151-0/+7
| | | | | | | We have places in the code where we assume that devfs is mounted on /dev/, so enforce this path to avoid surprises. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: rename inode member of struct filep to privSascha Hauer2015-03-091-10/+10
| | | | | | | Because that's what it is. 'inode' will become confusing once we support real inodes. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: store pointer to fsdev instead of dev in struct filepSascha Hauer2014-10-081-2/+2
| | | | | | | | The struct device_d * in struct filep is never of interest, instead it is always converted to a struct fs_device_d *, so simplify the code by storing the struct fs_device_d * directly. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Treewide: remove address of the Free Software FoundationSascha Hauer2012-09-171-3/+0
| | | | | | | The FSF address has changed in the past. Instead of updating it each time the address changes, just drop it completely treewide. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: fix standard zero, full devicesSascha Hauer2012-07-041-1/+2
| | | | | | | | | | | | | | | | The standard devices are currently broken since they have the size ~0. As now files use loff_t as file size which is a signed type the read implementation gets confused and now returns -1. The current implementation also has the (somewhat theorical) problem that we do not have real streaming devices, so /dev/zero went out of zeroes after reading 4GB (or now LLONG_MAX). This patch introduces a new cdev flag DEVFS_IS_CHARACTER_DEV and a new file size flag FILE_SIZE_STREAM which makes it possible to create real stream devices instead. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/resource-size'Sascha Hauer2012-07-021-1/+1
|\ | | | | | | | | | | Conflicts: drivers/base/resource.c fs/fs.c
| * resource: store 'end' instead of 'size' in struct resourceSascha Hauer2012-07-011-1/+1
| | | | | | | | | | | | | | | | | | | | Storing the size instead of the resource end in struct resource was a mistake. 'size' ranges from 0 to UINT[32|64]_MAX + 1 which obviously leads to problems. 'end' on the other hand will never exceed UINT[32|64]_MAX. Also this way we can express a iomem region covering the whole address space. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2012-07-021-0/+6
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| * | fs/devfs.c: disallow write and erase if a partition is read-onlyJan Luebbe2012-06-301-0/+6
| |/ | | | | | | | | Signed-off-by: Jan Luebbe <jlu@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | make cdev 64bit capableSascha Hauer2012-06-301-2/+2
| | | | | | | | | | | | Next step to 64bit support: Make cdev size a 64bit type. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | use loff_t for file offsetsSascha Hauer2012-06-301-3/+3
|/ | | | | | | This is a first step for 64bit file support: Make the file sizes/offsets 64bit. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* devfs: don't erase past the end of the partitionJohannes Stezenbach2012-06-071-0/+3
| | | | | | | | "erase /dev/myflash0.mypart 0xf0000+0xf0000" could erase past the end of the partition. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: get fs device using container_ofSascha Hauer2012-02-251-1/+0
| | | | | | This reduces the usage of dev->type_data. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* cdev: pass flags to open functionSascha Hauer2011-12-151-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: switch to resourceJean-Christophe PLAGNIOL-VILLARD2011-07-301-1/+3
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* devfs: factor out core devfs functionalitySascha Hauer2011-04-111-165/+2
| | | | | | | | | This makes it possible to compile without devfs. devfs_create/devfs_remove is used by drivers and thus must still be present even without devfs support. Also, this patch adds cdev_open/cdev_close/cdev_flush/cdev_ioctl calls to work with devices without using the file api. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: implement flush functionSascha Hauer2011-04-111-0/+11
| | | | | | | Once we have caching in file functions we need a way to sync the the underlying devices. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* devfs: remove unused struct filep* argument from open/closeSascha Hauer2011-04-111-2/+2
| | | | | | | the cdev layer is under the file layer, so it should not use struct filep*. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: remove unused field 'type' from struct fs_driver_dSascha Hauer2011-04-111-1/+0
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* devfs: only check for ioctl function when neededSascha Hauer2010-07-051-8/+7
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* add partition mtd supportSascha Hauer2010-07-051-0/+31
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* rename U-Boot-v2 project to bareboxSascha Hauer2009-12-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | This has been done with the following script: find -path ./.git -prune -o -type f -print0 | xargs -0 -r sed -i \ -e 's/u2boot/barebox/g' \ -e 's/U2Boot/barebox/g' \ -e 's/U-boot V2/barebox/g' \ -e 's/u-boot v2/barebox/g' \ -e 's/U-Boot V2/barebox/g' \ -e 's/U-Boot-v2/barebox/g' \ -e 's/U_BOOT/BAREBOX/g' \ -e 's/UBOOT/BAREBOX/g' \ -e 's/uboot/barebox/g' \ -e 's/u-boot/barebox/g' \ -e 's/u_boot/barebox/g' \ -e 's/U-Boot/barebox/g' \ -e 's/U-boot/barebox/g' \ -e 's/U-BOOT/barebox/g' find -path ./.git -prune -o \( -name "*u-boot*" -o -name "*uboot*" -o -name "*u_boot*" \) -print0 | \ xargs -0 -r rename 's/u[-_]?boot/barebox/' It needs some manual fixup following in the next patch Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* devfs: fix return value for lseek in partitionsSascha Hauer2009-09-251-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* devfs: add open counterSascha Hauer2009-09-111-7/+29
| | | | | | | Add an open counter for device files so that we cannot accidently remove an opened device. This happened with bb devices. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* get rid of device idsSascha Hauer2009-07-211-13/+25
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* make sure ramfs/devfs are initialised when neededSascha Hauer2009-07-211-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Get rid of DEVICE_TYPE_FS usageSascha Hauer2009-07-211-2/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* devfs: add missing remove functionSascha Hauer2009-07-211-0/+5
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* introduce cdevSascha Hauer2009-07-211-47/+183
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lseek: return -1 for errors and check for that return valueSascha Hauer2008-08-011-2/+2
| | | | | | We cannot check for < 0 in lseek, otherwise we get problems with files > 0x7fffffff Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* - introduce ioctl callSascha Hauer2008-06-061-6/+30
| | | | - pass open/close/lseek through to drivers
* Use Linux kernel list for drivers and devices instead of handmadeSascha Hauer2007-10-111-8/+12
| | | | list.
* declare lots of functions staticSascha Hauer2007-09-281-6/+6
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* implement flash protectionSascha Hauer2007-07-161-0/+8
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* implement memmap().Sascha Hauer2007-07-151-0/+8
| | | | | | With this function we can get a pointer to directly memory mapped devices like nor flash or RAM. Useful for bootm where we save one memcopy when the image is mappable
* implement truncate for devfsSascha Hauer2007-07-051-0/+8
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* svn_rev_706Sascha Hauer2007-07-051-0/+22
| | | | add file headers
* svn_rev_448Sascha Hauer2007-07-051-0/+8
| | | | add erase
* svn_rev_437Sascha Hauer2007-07-051-2/+4
| | | | use dev_read/dev_write
* svn_rev_420Sascha Hauer2007-07-051-6/+6
| | | | | | | | | | | - do more POSIX: - use DIR instead of struct dirent - use (struct dirent)->d_name instead of (struct dirent)->name - switch to a new layout for U_BOOT_CMD: - use C99 initializers to be able to add more fields to the command struct - add aliases for commands (needed mainly for help -> ? and test -> [ - This is not done for all commands yet, but the compiler will tell you ;)
* svn_rev_369Sascha Hauer2007-07-051-1/+0
| | | | include asm-generic in errno.h instead of all other files
* svn_rev_337Sascha Hauer2007-07-051-1/+4
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* svn_rev_284Sascha Hauer2007-07-051-0/+122
add devfs
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