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 <command.h>
  12 #include <mapmem.h>
  13 #include <fat.h>
  14 #include <fs.h>
  15 #include <part.h>
  16 #include <asm/cache.h>
  17
  18 int do_fat_size(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  19 {
  20         return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  21 }
  22
  23 U_BOOT_CMD(
  24         fatsize,        4,      0,      do_fat_size,
  25         "determine a file's size",
  26         "<interface> <dev[:part]> <filename>\n"
  27         "    - Find file 'filename' from 'dev' on 'interface'\n"
  28         "      and determine its size."
  29 );
  30
  31 int do_fat_fsload(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  32 {
  33         return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  34 }
  35
  36
  37 U_BOOT_CMD(
  38         fatload,        7,      0,      do_fat_fsload,
  39         "load binary file from a dos filesystem",
  40         "<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
  41         "    - Load binary file 'filename' from 'dev' on 'interface'\n"
  42         "      to address 'addr' from dos filesystem.\n"
  43         "      'pos' gives the file position to start loading from.\n"
  44         "      If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
  45         "      'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
  46         "      the load stops on end of file.\n"
  47         "      If either 'pos' or 'bytes' are not aligned to\n"
  48         "      ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
  49         "      be printed and performance will suffer for the load."
  50 );
  51
  52 static int do_fat_ls(struct cmd_tbl *cmdtp, int flag, int argc,
  53                      char *const argv[])
  54 {
  55         return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  56 }
  57
  58 U_BOOT_CMD(
  59         fatls,  4,      1,      do_fat_ls,
  60         "list files in a directory (default /)",
  61         "<interface> [<dev[:part]>] [directory]\n"
  62         "    - list files from 'dev' on 'interface' in a 'directory'"
  63 );
  64
  65 static int do_fat_fsinfo(struct cmd_tbl *cmdtp, int flag, int argc,
  66                          char *const argv[])
  67 {
  68         int dev, part;
  69         struct blk_desc *dev_desc;
  70         struct disk_partition info;
  71
  72         if (argc < 2) {
  73                 printf("usage: fatinfo <interface> [<dev[:part]>]\n");
  74                 return 0;
  75         }
  76
  77         part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  78         if (part < 0)
  79                 return 1;
  80
  81         dev = dev_desc->devnum;
  82         if (fat_set_blk_dev(dev_desc, &info) != 0) {
  83                 printf("\n** Unable to use %s %d:%d for fatinfo **\n",
  84                         argv[1], dev, part);
  85                 return 1;
  86         }
  87         return file_fat_detectfs();
  88 }
  89
  90 U_BOOT_CMD(
  91         fatinfo,        3,      1,      do_fat_fsinfo,
  92         "print information about filesystem",
  93         "<interface> [<dev[:part]>]\n"
  94         "    - print information about filesystem from 'dev' on 'interface'"
  95 );
  96
  97 #ifdef CONFIG_FAT_WRITE
  98 static int do_fat_fswrite(struct cmd_tbl *cmdtp, int flag, int argc,
  99                           char *const argv[])
 100 {
 101         loff_t size;
 102         int ret;
 103         unsigned long addr;
 104         unsigned long count;
 105         long offset;
 106         struct blk_desc *dev_desc = NULL;
 107         struct disk_partition info;
 108         int dev = 0;
 109         int part = 1;
 110         void *buf;
 111
 112         if (argc < 5)
 113                 return cmd_usage(cmdtp);
 114
 115         part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
 116         if (part < 0)
 117                 return 1;
 118
 119         dev = dev_desc->devnum;
 120
 121         if (fat_set_blk_dev(dev_desc, &info) != 0) {
 122                 printf("\n** Unable to use %s %d:%d for fatwrite **\n",
 123                         argv[1], dev, part);
 124                 return 1;
 125         }
 126         addr = simple_strtoul(argv[3], NULL, 16);
 127         count = (argc <= 5) ? 0 : simple_strtoul(argv[5], NULL, 16);
 128         /* offset should be a hex, but "-1" is allowed */
 129         offset = (argc <= 6) ? 0 : simple_strtol(argv[6], NULL, 16);
 130
 131         buf = map_sysmem(addr, count);
 132         ret = file_fat_write(argv[4], buf, offset, 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
 145 U_BOOT_CMD(
 146         fatwrite,       7,      0,      do_fat_fswrite,
 147         "write file into a dos filesystem",
 148         "<interface> <dev[:part]> <addr> <filename> [<bytes> [<offset>]]\n"
 149         "    - write file 'filename' from the address 'addr' in RAM\n"
 150         "      to 'dev' on 'interface'"
 151 );
 152
 153 static int do_fat_rm(struct cmd_tbl *cmdtp, int flag, int argc,
 154                      char *const argv[])
 155 {
 156         return do_rm(cmdtp, flag, argc, argv, FS_TYPE_FAT);
 157 }
 158
 159 U_BOOT_CMD(
 160         fatrm,  4,      1,      do_fat_rm,
 161         "delete a file",
 162         "<interface> [<dev[:part]>] <filename>\n"
 163         "    - delete a file from 'dev' on 'interface'"
 164 );
 165
 166 static int do_fat_mkdir(struct cmd_tbl *cmdtp, int flag, int argc,
 167                         char *const argv[])
 168 {
 169         return do_mkdir(cmdtp, flag, argc, argv, FS_TYPE_FAT);
 170 }
 171
 172 U_BOOT_CMD(
 173         fatmkdir,       4,      1,      do_fat_mkdir,
 174         "create a directory",
 175         "<interface> [<dev[:part]>] <directory>\n"
 176         "    - create a directory in 'dev' on 'interface'"
 177 );
 178 #endif