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https://github.com/brain-hackers/u-boot-brain
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![Stephen Warren](/assets/img/avatar_default.png)
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>
151 lines
3.6 KiB
C
151 lines
3.6 KiB
C
/*
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* (C) Copyright 2002
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* Richard Jones, rjones@nexus-tech.net
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Boot support
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*/
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#include <common.h>
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#include <command.h>
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#include <s_record.h>
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#include <net.h>
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#include <ata.h>
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#include <asm/io.h>
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#include <part.h>
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#include <fat.h>
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#include <fs.h>
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int do_fat_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
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}
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U_BOOT_CMD(
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fatsize, 4, 0, do_fat_size,
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"determine a file's size",
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"<interface> <dev[:part]> <filename>\n"
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" - Find file 'filename' from 'dev' on 'interface'\n"
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" and determine its size."
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);
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int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
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}
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U_BOOT_CMD(
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fatload, 7, 0, do_fat_fsload,
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"load binary file from a dos filesystem",
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"<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
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" - Load binary file 'filename' from 'dev' on 'interface'\n"
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" to address 'addr' from dos filesystem.\n"
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" 'pos' gives the file position to start loading from.\n"
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" If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
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" 'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
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" the load stops on end of file.\n"
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" If either 'pos' or 'bytes' are not aligned to\n"
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" ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
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" be printed and performance will suffer for the load."
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);
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static int do_fat_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
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}
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U_BOOT_CMD(
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fatls, 4, 1, do_fat_ls,
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"list files in a directory (default /)",
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"<interface> [<dev[:part]>] [directory]\n"
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" - list files from 'dev' on 'interface' in a 'directory'"
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);
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static int do_fat_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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int dev, part;
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block_dev_desc_t *dev_desc;
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disk_partition_t info;
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if (argc < 2) {
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printf("usage: fatinfo <interface> [<dev[:part]>]\n");
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return 0;
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}
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part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
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if (part < 0)
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return 1;
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dev = dev_desc->dev;
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if (fat_set_blk_dev(dev_desc, &info) != 0) {
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printf("\n** Unable to use %s %d:%d for fatinfo **\n",
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argv[1], dev, part);
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return 1;
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}
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return file_fat_detectfs();
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}
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U_BOOT_CMD(
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fatinfo, 3, 1, do_fat_fsinfo,
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"print information about filesystem",
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"<interface> [<dev[:part]>]\n"
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" - print information about filesystem from 'dev' on 'interface'"
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);
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#ifdef CONFIG_FAT_WRITE
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static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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long size;
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unsigned long addr;
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unsigned long count;
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block_dev_desc_t *dev_desc = NULL;
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disk_partition_t info;
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int dev = 0;
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int part = 1;
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void *buf;
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if (argc < 5)
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return cmd_usage(cmdtp);
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part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
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if (part < 0)
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return 1;
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dev = dev_desc->dev;
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if (fat_set_blk_dev(dev_desc, &info) != 0) {
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printf("\n** Unable to use %s %d:%d for fatwrite **\n",
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argv[1], dev, part);
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return 1;
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}
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addr = simple_strtoul(argv[3], NULL, 16);
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count = simple_strtoul(argv[5], NULL, 16);
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buf = map_sysmem(addr, count);
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size = file_fat_write(argv[4], buf, count);
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unmap_sysmem(buf);
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if (size == -1) {
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printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
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argv[4], argv[1], dev, part);
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return 1;
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}
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printf("%ld bytes written\n", size);
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return 0;
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}
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U_BOOT_CMD(
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fatwrite, 6, 0, do_fat_fswrite,
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"write file into a dos filesystem",
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"<interface> <dev[:part]> <addr> <filename> <bytes>\n"
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" - write file 'filename' from the address 'addr' in RAM\n"
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" to 'dev' on 'interface'"
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);
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#endif
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