cmd/fat.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2002
   4  * Richard Jones, rjones@nexus-tech.net
   5  */
   6
   7 /*
   8  * Boot support
   9  */
  10 #include <common.h>
  11 #include <mapmem.h>
  12 #include <fat.h>
  13 #include <fs.h>
  14
  15 int do_fat_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  16 {
  17         return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  18 }
  19
  20 U_BOOT_CMD(
  21         fatsize,        4,      0,      do_fat_size,
  22         "determine a file's size",
  23         "<interface> <dev[:part]> <filename>\n"
  24         "    - Find file 'filename' from 'dev' on 'interface'\n"
  25         "      and determine its size."
  26 );
  27
  28 int do_fat_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  29 {
  30         return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  31 }
  32
  33
  34 U_BOOT_CMD(
  35         fatload,        7,      0,      do_fat_fsload,
  36         "load binary file from a dos filesystem",
  37         "<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
  38         "    - Load binary file 'filename' from 'dev' on 'interface'\n"
  39         "      to address 'addr' from dos filesystem.\n"
  40         "      'pos' gives the file position to start loading from.\n"
  41         "      If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
  42         "      'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
  43         "      the load stops on end of file.\n"
  44         "      If either 'pos' or 'bytes' are not aligned to\n"
  45         "      ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
  46         "      be printed and performance will suffer for the load."
  47 );
  48
  49 static int do_fat_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  50 {
  51         return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  52 }
  53
  54 U_BOOT_CMD(
  55         fatls,  4,      1,      do_fat_ls,
  56         "list files in a directory (default /)",
  57         "<interface> [<dev[:part]>] [directory]\n"
  58         "    - list files from 'dev' on 'interface' in a 'directory'"
  59 );
  60
  61 static int do_fat_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc,
  62                          char * const argv[])
  63 {
  64         int dev, part;
  65         struct blk_desc *dev_desc;
  66         disk_partition_t info;
  67
  68         if (argc < 2) {
  69                 printf("usage: fatinfo <interface> [<dev[:part]>]\n");
  70                 return 0;
  71         }
  72
  73         part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  74         if (part < 0)
  75                 return 1;
  76
  77         dev = dev_desc->devnum;
  78         if (fat_set_blk_dev(dev_desc, &info) != 0) {
  79                 printf("\n** Unable to use %s %d:%d for fatinfo **\n",
  80                         argv[1], dev, part);
  81                 return 1;
  82         }
  83         return file_fat_detectfs();
  84 }
  85
  86 U_BOOT_CMD(
  87         fatinfo,        3,      1,      do_fat_fsinfo,
  88         "print information about filesystem",
  89         "<interface> [<dev[:part]>]\n"
  90         "    - print information about filesystem from 'dev' on 'interface'"
  91 );
  92
  93 #ifdef CONFIG_FAT_WRITE
  94 static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
  95                 int argc, char * const argv[])
  96 {
  97         loff_t size;
  98         int ret;
  99         unsigned long addr;
 100         unsigned long count;
 101         long offset;
 102         struct blk_desc *dev_desc = NULL;
 103         disk_partition_t info;
 104         int dev = 0;
 105         int part = 1;
 106         void *buf;
 107
 108         if (argc < 5)
 109                 return cmd_usage(cmdtp);
 110
 111         part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
 112         if (part < 0)
 113                 return 1;
 114
 115         dev = dev_desc->devnum;
 116
 117         if (fat_set_blk_dev(dev_desc, &info) != 0) {
 118                 printf("\n** Unable to use %s %d:%d for fatwrite **\n",
 119                         argv[1], dev, part);
 120                 return 1;
 121         }
 122         addr = simple_strtoul(argv[3], NULL, 16);
 123         count = (argc <= 5) ? 0 : simple_strtoul(argv[5], NULL, 16);
 124         /* offset should be a hex, but "-1" is allowed */
 125         offset = (argc <= 6) ? 0 : simple_strtol(argv[6], NULL, 16);
 126
 127         buf = map_sysmem(addr, count);
 128         ret = file_fat_write(argv[4], buf, offset, count, &size);
 129         unmap_sysmem(buf);
 130         if (ret < 0) {
 131                 printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
 132                         argv[4], argv[1], dev, part);
 133                 return 1;
 134         }
 135
 136         printf("%llu bytes written\n", size);
 137
 138         return 0;
 139 }
 140
 141 U_BOOT_CMD(
 142         fatwrite,       7,      0,      do_fat_fswrite,
 143         "write file into a dos filesystem",
 144         "<interface> <dev[:part]> <addr> <filename> [<bytes> [<offset>]]\n"
 145         "    - write file 'filename' from the address 'addr' in RAM\n"
 146         "      to 'dev' on 'interface'"
 147 );
 148
 149 static int do_fat_rm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 150 {
 151         return do_rm(cmdtp, flag, argc, argv, FS_TYPE_FAT);
 152 }
 153
 154 U_BOOT_CMD(
 155         fatrm,  4,      1,      do_fat_rm,
 156         "delete a file",
 157         "<interface> [<dev[:part]>] <filename>\n"
 158         "    - delete a file from 'dev' on 'interface'"
 159 );
 160
 161 static int do_fat_mkdir(cmd_tbl_t *cmdtp, int flag, int argc,
 162                         char * const argv[])
 163 {
 164         return do_mkdir(cmdtp, flag, argc, argv, FS_TYPE_FAT);
 165 }
 166
 167 U_BOOT_CMD(
 168         fatmkdir,       4,      1,      do_fat_mkdir,
 169         "create a directory",
 170         "<interface> [<dev[:part]>] <directory>\n"
 171         "    - create a directory in 'dev' on 'interface'"
 172 );
 173 #endif