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 <s_record.h>
  13 #include <net.h>
  14 #include <ata.h>
  15 #include <asm/io.h>
  16 #include <mapmem.h>
  17 #include <part.h>
  18 #include <fat.h>
  19 #include <fs.h>
  20
  21 int do_fat_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  22 {
  23         return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  24 }
  25
  26 U_BOOT_CMD(
  27         fatsize,        4,      0,      do_fat_size,
  28         "determine a file's size",
  29         "<interface> <dev[:part]> <filename>\n"
  30         "    - Find file 'filename' from 'dev' on 'interface'\n"
  31         "      and determine its size."
  32 );
  33
  34 int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  35 {
  36         return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  37 }
  38
  39
  40 U_BOOT_CMD(
  41         fatload,        7,      0,      do_fat_fsload,
  42         "load binary file from a dos filesystem",
  43         "<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
  44         "    - Load binary file 'filename' from 'dev' on 'interface'\n"
  45         "      to address 'addr' from dos filesystem.\n"
  46         "      'pos' gives the file position to start loading from.\n"
  47         "      If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
  48         "      'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
  49         "      the load stops on end of file.\n"
  50         "      If either 'pos' or 'bytes' are not aligned to\n"
  51         "      ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
  52         "      be printed and performance will suffer for the load."
  53 );
  54
  55 static int do_fat_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  56 {
  57         return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  58 }
  59
  60 U_BOOT_CMD(
  61         fatls,  4,      1,      do_fat_ls,
  62         "list files in a directory (default /)",
  63         "<interface> [<dev[:part]>] [directory]\n"
  64         "    - list files from 'dev' on 'interface' in a 'directory'"
  65 );
  66
  67 static int do_fat_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc,
  68                          char * const argv[])
  69 {
  70         int dev, part;
  71         struct blk_desc *dev_desc;
  72         disk_partition_t info;
  73
  74         if (argc < 2) {
  75                 printf("usage: fatinfo <interface> [<dev[:part]>]\n");
  76                 return 0;
  77         }
  78
  79         part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  80         if (part < 0)
  81                 return 1;
  82
  83         dev = dev_desc->devnum;
  84         if (fat_set_blk_dev(dev_desc, &info) != 0) {
  85                 printf("\n** Unable to use %s %d:%d for fatinfo **\n",
  86                         argv[1], dev, part);
  87                 return 1;
  88         }
  89         return file_fat_detectfs();
  90 }
  91
  92 U_BOOT_CMD(
  93         fatinfo,        3,      1,      do_fat_fsinfo,
  94         "print information about filesystem",
  95         "<interface> [<dev[:part]>]\n"
  96         "    - print information about filesystem from 'dev' on 'interface'"
  97 );
  98
  99 #ifdef CONFIG_FAT_WRITE
 100 static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
 101                 int argc, char * const argv[])
 102 {
 103         loff_t size;
 104         int ret;
 105         unsigned long addr;
 106         unsigned long count;
 107         long offset;
 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         /* offset should be a hex, but "-1" is allowed */
 131         offset = (argc <= 6) ? 0 : simple_strtol(argv[6], NULL, 16);
 132
 133         buf = map_sysmem(addr, count);
 134         ret = file_fat_write(argv[4], buf, offset, count, &size);
 135         unmap_sysmem(buf);
 136         if (ret < 0) {
 137                 printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
 138                         argv[4], argv[1], dev, part);
 139                 return 1;
 140         }
 141
 142         printf("%llu bytes written\n", size);
 143
 144         return 0;
 145 }
 146
 147 U_BOOT_CMD(
 148         fatwrite,       7,      0,      do_fat_fswrite,
 149         "write file into a dos filesystem",
 150         "<interface> <dev[:part]> <addr> <filename> [<bytes> [<offset>]]\n"
 151         "    - write file 'filename' from the address 'addr' in RAM\n"
 152         "      to 'dev' on 'interface'"
 153 );
 154
 155 static int do_fat_rm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 156 {
 157         return do_rm(cmdtp, flag, argc, argv, FS_TYPE_FAT);
 158 }
 159
 160 U_BOOT_CMD(
 161         fatrm,  4,      1,      do_fat_rm,
 162         "delete a file",
 163         "<interface> [<dev[:part]>] <filename>\n"
 164         "    - delete a file from 'dev' on 'interface'"
 165 );
 166
 167 static int do_fat_mkdir(cmd_tbl_t *cmdtp, int flag, int argc,
 168                         char * const argv[])
 169 {
 170         return do_mkdir(cmdtp, flag, argc, argv, FS_TYPE_FAT);
 171 }
 172
 173 U_BOOT_CMD(
 174         fatmkdir,       4,      1,      do_fat_mkdir,
 175         "create a directory",
 176         "<interface> [<dev[:part]>] <directory>\n"
 177         "    - create a directory in 'dev' on 'interface'"
 178 );
 179 #endif