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https://github.com/brain-hackers/u-boot-brain
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![Wolfgang Denk](/assets/img/avatar_default.png)
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 commits045fa1e
"fs: add filesystem switch libary, implement ls and fsload commands" and3f83c87
"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>
355 lines
7.3 KiB
C
355 lines
7.3 KiB
C
/*
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* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <common.h>
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#include <part.h>
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#include <ext4fs.h>
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#include <fat.h>
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#include <fs.h>
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#include <sandboxfs.h>
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#include <asm/io.h>
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DECLARE_GLOBAL_DATA_PTR;
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static block_dev_desc_t *fs_dev_desc;
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static disk_partition_t fs_partition;
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static int fs_type = FS_TYPE_ANY;
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static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc,
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disk_partition_t *fs_partition)
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{
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printf("** Unrecognized filesystem type **\n");
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return -1;
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}
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static inline int fs_ls_unsupported(const char *dirname)
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{
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return -1;
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}
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static inline int fs_read_unsupported(const char *filename, void *buf,
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int offset, int len)
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{
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return -1;
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}
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static inline int fs_write_unsupported(const char *filename, void *buf,
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int offset, int len)
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{
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return -1;
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}
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static inline void fs_close_unsupported(void)
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{
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}
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struct fstype_info {
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int fstype;
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int (*probe)(block_dev_desc_t *fs_dev_desc,
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disk_partition_t *fs_partition);
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int (*ls)(const char *dirname);
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int (*read)(const char *filename, void *buf, int offset, int len);
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int (*write)(const char *filename, void *buf, int offset, int len);
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void (*close)(void);
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};
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static struct fstype_info fstypes[] = {
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#ifdef CONFIG_FS_FAT
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{
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.fstype = FS_TYPE_FAT,
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.probe = fat_set_blk_dev,
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.close = fat_close,
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.ls = file_fat_ls,
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.read = fat_read_file,
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},
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#endif
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#ifdef CONFIG_FS_EXT4
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{
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.fstype = FS_TYPE_EXT,
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.probe = ext4fs_probe,
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.close = ext4fs_close,
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.ls = ext4fs_ls,
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.read = ext4_read_file,
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},
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#endif
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#ifdef CONFIG_SANDBOX
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{
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.fstype = FS_TYPE_SANDBOX,
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.probe = sandbox_fs_set_blk_dev,
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.close = sandbox_fs_close,
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.ls = sandbox_fs_ls,
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.read = fs_read_sandbox,
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.write = fs_write_sandbox,
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},
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#endif
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{
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.fstype = FS_TYPE_ANY,
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.probe = fs_probe_unsupported,
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.close = fs_close_unsupported,
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.ls = fs_ls_unsupported,
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.read = fs_read_unsupported,
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.write = fs_write_unsupported,
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},
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};
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static struct fstype_info *fs_get_info(int fstype)
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{
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struct fstype_info *info;
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int i;
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for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
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if (fstype == info->fstype)
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return info;
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}
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/* Return the 'unsupported' sentinel */
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return info;
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}
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int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
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{
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struct fstype_info *info;
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int part, i;
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#ifdef CONFIG_NEEDS_MANUAL_RELOC
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static int relocated;
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if (!relocated) {
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for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
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i++, info++) {
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info->probe += gd->reloc_off;
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info->close += gd->reloc_off;
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info->ls += gd->reloc_off;
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info->read += gd->reloc_off;
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info->write += gd->reloc_off;
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}
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relocated = 1;
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}
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#endif
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part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
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&fs_partition, 1);
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if (part < 0)
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return -1;
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for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
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if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
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fstype != info->fstype)
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continue;
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if (!info->probe(fs_dev_desc, &fs_partition)) {
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fs_type = info->fstype;
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return 0;
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}
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}
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return -1;
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}
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static void fs_close(void)
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{
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struct fstype_info *info = fs_get_info(fs_type);
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info->close();
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fs_type = FS_TYPE_ANY;
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}
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int fs_ls(const char *dirname)
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{
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int ret;
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struct fstype_info *info = fs_get_info(fs_type);
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ret = info->ls(dirname);
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fs_type = FS_TYPE_ANY;
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fs_close();
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return ret;
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}
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int fs_read(const char *filename, ulong addr, int offset, int len)
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{
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struct fstype_info *info = fs_get_info(fs_type);
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void *buf;
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int ret;
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/*
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* We don't actually know how many bytes are being read, since len==0
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* means read the whole file.
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*/
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buf = map_sysmem(addr, len);
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ret = info->read(filename, buf, offset, len);
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unmap_sysmem(buf);
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/* If we requested a specific number of bytes, check we got it */
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if (ret >= 0 && len && ret != len) {
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printf("** Unable to read file %s **\n", filename);
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ret = -1;
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}
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fs_close();
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return ret;
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}
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int fs_write(const char *filename, ulong addr, int offset, int len)
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{
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struct fstype_info *info = fs_get_info(fs_type);
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void *buf;
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int ret;
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/*
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* We don't actually know how many bytes are being read, since len==0
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* means read the whole file.
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*/
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buf = map_sysmem(addr, len);
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ret = info->write(filename, buf, offset, len);
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unmap_sysmem(buf);
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/* If we requested a specific number of bytes, check we got it */
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if (ret >= 0 && len && ret != len) {
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printf("** Unable to write file %s **\n", filename);
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ret = -1;
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}
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fs_close();
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return ret;
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}
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int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
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int fstype)
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{
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unsigned long addr;
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const char *addr_str;
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const char *filename;
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unsigned long bytes;
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unsigned long pos;
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int len_read;
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unsigned long time;
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if (argc < 2)
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return CMD_RET_USAGE;
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if (argc > 7)
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return CMD_RET_USAGE;
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if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
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return 1;
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if (argc >= 4) {
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addr = simple_strtoul(argv[3], NULL, 16);
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} else {
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addr_str = getenv("loadaddr");
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if (addr_str != NULL)
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addr = simple_strtoul(addr_str, NULL, 16);
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else
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addr = CONFIG_SYS_LOAD_ADDR;
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}
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if (argc >= 5) {
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filename = argv[4];
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} else {
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filename = getenv("bootfile");
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if (!filename) {
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puts("** No boot file defined **\n");
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return 1;
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}
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}
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if (argc >= 6)
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bytes = simple_strtoul(argv[5], NULL, 16);
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else
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bytes = 0;
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if (argc >= 7)
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pos = simple_strtoul(argv[6], NULL, 16);
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else
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pos = 0;
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time = get_timer(0);
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len_read = fs_read(filename, addr, pos, bytes);
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time = get_timer(time);
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if (len_read <= 0)
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return 1;
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printf("%d bytes read in %lu ms", len_read, time);
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if (time > 0) {
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puts(" (");
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print_size(len_read / time * 1000, "/s");
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puts(")");
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}
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puts("\n");
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setenv_hex("filesize", len_read);
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return 0;
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}
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int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
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int fstype)
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{
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if (argc < 2)
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return CMD_RET_USAGE;
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if (argc > 4)
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return CMD_RET_USAGE;
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if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
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return 1;
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if (fs_ls(argc >= 4 ? argv[3] : "/"))
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return 1;
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return 0;
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}
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int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
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int fstype)
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{
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unsigned long addr;
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const char *filename;
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unsigned long bytes;
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unsigned long pos;
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int len;
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unsigned long time;
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if (argc < 6 || argc > 7)
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return CMD_RET_USAGE;
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if (fs_set_blk_dev(argv[1], argv[2], fstype))
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return 1;
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filename = argv[3];
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addr = simple_strtoul(argv[4], NULL, 16);
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bytes = simple_strtoul(argv[5], NULL, 16);
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if (argc >= 7)
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pos = simple_strtoul(argv[6], NULL, 16);
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else
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pos = 0;
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time = get_timer(0);
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len = fs_write(filename, addr, pos, bytes);
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time = get_timer(time);
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if (len <= 0)
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return 1;
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printf("%d bytes written in %lu ms", len, time);
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if (time > 0) {
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puts(" (");
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print_size(len / time * 1000, "/s");
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puts(")");
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}
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puts("\n");
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return 0;
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}
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