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b86a651b64
Add U-Boot adjustments to the libexfat code and integrate
the result into U-Boot filesystem layer. This provides full
read-write exfat support for U-Boot available via generic
filesystem interface.
FS_DIRENT_NAME_LEN is increased to 1024 in case exfat is
enabled, because EXFAT can use UTF16 names, which do not
fit into current FS_DIRENT_NAME_LEN. To avoid affecting
every configuration, increase FS_DIRENT_NAME_LEN only in
case EXFAT is enabled.
Example usage via sandbox, assuming disk.img with one exfat partition:
Drive info:
$ ./u-boot -Tc 'host bind 0 ../disk.img ; host info 0'
dev blocks blksz label path
0 262144 512 0 ../disk.img
List files:
$ ./u-boot -Tc 'host bind 0 ../disk.img ; ls host 0:1 /api'
475 Kconfig
230 Makefile
1873 README
...
10 file(s), 0 dir(s)
Load and checksum a file:
$ ./u-boot -Tc 'host bind 0 ../disk.img ; load host 0:1 $loadaddr .config ; \
crc32 $loadaddr $filesize'
56724 bytes read in 1 ms (54.1 MiB/s)
crc32 for 00000000 ... 0000dd93 ==> b2e847c9
$ crc32 .config
b2e847c9
Load .config file to RAM, store the file into FS as /newconfig,
load the /newconfig into RAM and checksum the file:
$ ./u-boot -Tc 'host bind 0 ../disk.img ; load host 0:1 $loadaddr .config ; \
save host 0:1 $loadaddr /newconfig $filesize ; \
load host 0:1 0x10000 /newconfig ; \
crc32 0x10000 $filesize'
56724 bytes read in 1 ms (54.1 MiB/s)
56724 bytes written in 0 ms
56724 bytes read in 0 ms
crc32 for 00010000 ... 0001dd93 ==> b2e847c9
Remove file 3.txt and create new directory /newdir:
$ ./u-boot -Tc 'host bind 0 ../disk.img ; ls host 0:1 / ; \
rm host 0:1 3.txt ; mkdir host 0:1 /newdir ; \
ls host 0:1 /'
...
0 1.txt
0 2.txt
0 3.txt
0 4.txt
0 5.txt
7 file(s), 4 dir(s)
...
0 1.txt
0 2.txt
newdir/
0 4.txt
0 5.txt
6 file(s), 5 dir(s)
Acked-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marex@denx.de>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*
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platform.h (14.05.13)
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OS-specific code (libc-specific in fact). Note that systems with the
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same kernel can use different libc implementations.
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Free exFAT implementation.
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Copyright (C) 2010-2023 Andrew Nayenko
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef PLATFORM_H_INCLUDED
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#define PLATFORM_H_INCLUDED
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#if defined(__linux__) || defined(__GLIBC__) || defined(__GNU__)
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#ifndef __UBOOT__
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#include <endian.h>
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#include <byteswap.h>
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#endif
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#define exfat_bswap16(x) bswap_16(x)
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#define exfat_bswap32(x) bswap_32(x)
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#define exfat_bswap64(x) bswap_64(x)
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#define EXFAT_BYTE_ORDER __BYTE_ORDER
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#define EXFAT_LITTLE_ENDIAN __LITTLE_ENDIAN
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#define EXFAT_BIG_ENDIAN __BIG_ENDIAN
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#elif defined(__APPLE__)
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#include <machine/endian.h>
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#include <libkern/OSByteOrder.h>
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#define exfat_bswap16(x) OSSwapInt16(x)
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#define exfat_bswap32(x) OSSwapInt32(x)
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#define exfat_bswap64(x) OSSwapInt64(x)
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#define EXFAT_BYTE_ORDER BYTE_ORDER
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#define EXFAT_LITTLE_ENDIAN LITTLE_ENDIAN
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#define EXFAT_BIG_ENDIAN BIG_ENDIAN
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#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__OpenBSD__)
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#include <sys/endian.h>
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#define exfat_bswap16(x) bswap16(x)
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#define exfat_bswap32(x) bswap32(x)
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#define exfat_bswap64(x) bswap64(x)
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#define EXFAT_BYTE_ORDER _BYTE_ORDER
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#define EXFAT_LITTLE_ENDIAN _LITTLE_ENDIAN
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#define EXFAT_BIG_ENDIAN _BIG_ENDIAN
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#elif defined(__sun)
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#include <endian.h>
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#define exfat_bswap16(x) bswap_16(x)
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#define exfat_bswap32(x) bswap_32(x)
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#define exfat_bswap64(x) bswap_64(x)
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#define EXFAT_BYTE_ORDER __BYTE_ORDER
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#define EXFAT_LITTLE_ENDIAN __LITTLE_ENDIAN
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#define EXFAT_BIG_ENDIAN __BIG_ENDIAN
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#else
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#error Unknown platform
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#endif
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#endif /* ifndef PLATFORM_H_INCLUDED */
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