uboot/cmd/fat.c
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   1/*
   2 * (C) Copyright 2002
   3 * Richard Jones, rjones@nexus-tech.net
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8/*
   9 * Boot support
  10 */
  11#include <common.h>
  12#include <command.h>
  13#include <s_record.h>
  14#include <net.h>
  15#include <ata.h>
  16#include <asm/io.h>
  17#include <mapmem.h>
  18#include <part.h>
  19#include <fat.h>
  20#include <fs.h>
  21
  22int do_fat_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  23{
  24        return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  25}
  26
  27U_BOOT_CMD(
  28        fatsize,        4,      0,      do_fat_size,
  29        "determine a file's size",
  30        "<interface> <dev[:part]> <filename>\n"
  31        "    - Find file 'filename' from 'dev' on 'interface'\n"
  32        "      and determine its size."
  33);
  34
  35int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  36{
  37        return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  38}
  39
  40
  41U_BOOT_CMD(
  42        fatload,        7,      0,      do_fat_fsload,
  43        "load binary file from a dos filesystem",
  44        "<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
  45        "    - Load binary file 'filename' from 'dev' on 'interface'\n"
  46        "      to address 'addr' from dos filesystem.\n"
  47        "      'pos' gives the file position to start loading from.\n"
  48        "      If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
  49        "      'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
  50        "      the load stops on end of file.\n"
  51        "      If either 'pos' or 'bytes' are not aligned to\n"
  52        "      ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
  53        "      be printed and performance will suffer for the load."
  54);
  55
  56static int do_fat_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  57{
  58        return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  59}
  60
  61U_BOOT_CMD(
  62        fatls,  4,      1,      do_fat_ls,
  63        "list files in a directory (default /)",
  64        "<interface> [<dev[:part]>] [directory]\n"
  65        "    - list files from 'dev' on 'interface' in a 'directory'"
  66);
  67
  68static int do_fat_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc,
  69                         char * const argv[])
  70{
  71        int dev, part;
  72        struct blk_desc *dev_desc;
  73        disk_partition_t info;
  74
  75        if (argc < 2) {
  76                printf("usage: fatinfo <interface> [<dev[:part]>]\n");
  77                return 0;
  78        }
  79
  80        part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  81        if (part < 0)
  82                return 1;
  83
  84        dev = dev_desc->devnum;
  85        if (fat_set_blk_dev(dev_desc, &info) != 0) {
  86                printf("\n** Unable to use %s %d:%d for fatinfo **\n",
  87                        argv[1], dev, part);
  88                return 1;
  89        }
  90        return file_fat_detectfs();
  91}
  92
  93U_BOOT_CMD(
  94        fatinfo,        3,      1,      do_fat_fsinfo,
  95        "print information about filesystem",
  96        "<interface> [<dev[:part]>]\n"
  97        "    - print information about filesystem from 'dev' on 'interface'"
  98);
  99
 100#ifdef CONFIG_FAT_WRITE
 101static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
 102                int argc, char * const argv[])
 103{
 104        loff_t size;
 105        int ret;
 106        unsigned long addr;
 107        unsigned long count;
 108        struct blk_desc *dev_desc = NULL;
 109        disk_partition_t info;
 110        int dev = 0;
 111        int part = 1;
 112        void *buf;
 113
 114        if (argc < 5)
 115                return cmd_usage(cmdtp);
 116
 117        part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
 118        if (part < 0)
 119                return 1;
 120
 121        dev = dev_desc->devnum;
 122
 123        if (fat_set_blk_dev(dev_desc, &info) != 0) {
 124                printf("\n** Unable to use %s %d:%d for fatwrite **\n",
 125                        argv[1], dev, part);
 126                return 1;
 127        }
 128        addr = simple_strtoul(argv[3], NULL, 16);
 129        count = (argc <= 5) ? 0 : simple_strtoul(argv[5], NULL, 16);
 130
 131        buf = map_sysmem(addr, count);
 132        ret = file_fat_write(argv[4], buf, 0, count, &size);
 133        unmap_sysmem(buf);
 134        if (ret < 0) {
 135                printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
 136                        argv[4], argv[1], dev, part);
 137                return 1;
 138        }
 139
 140        printf("%llu bytes written\n", size);
 141
 142        return 0;
 143}
 144
 145U_BOOT_CMD(
 146        fatwrite,       6,      0,      do_fat_fswrite,
 147        "write file into a dos filesystem",
 148        "<interface> <dev[:part]> <addr> <filename> [<bytes>]\n"
 149        "    - write file 'filename' from the address 'addr' in RAM\n"
 150        "      to 'dev' on 'interface'"
 151);
 152#endif
 153