cmd/fat.c

   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
  22 int 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
  27 U_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
  35 int 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
  41 U_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
  56 static 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
  61 U_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
  68 static 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
  93 U_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
 101 static 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
 145 U_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