3 * Richard Jones, rjones@nexus-tech.net
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 #if (CONFIG_COMMANDS & CFG_CMD_FAT)
39 extern block_dev_desc_t *ide_get_dev (int dev);
41 int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
48 printf ("usage:fatload <filename> <addr> [bytes]\n");
52 offset = simple_strtoul (argv[2], NULL, 16);
54 count = simple_strtoul (argv[3], NULL, 16);
58 size = file_fat_read (argv[1], (unsigned char *) offset, count);
60 printf ("%ld bytes read\n", size);
65 cmd_tbl_t U_BOOT_CMD(FATLOAD) = MK_CMD_ENTRY(
66 "fatload", 4, 0, do_fat_fsload,
67 "fatload - load binary file from a dos filesystem\n",
68 "[ off ] [ filename ]\n"
69 " - load binary file from dos filesystem\n"
70 " with offset 'off'\n"
73 int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
79 ret = file_fat_ls (argv[1]);
81 ret = file_fat_ls (filename);
86 cmd_tbl_t U_BOOT_CMD(FATLS) = MK_CMD_ENTRY(
87 "fatls", 2, 1, do_fat_ls,
88 "fatls - list files in a directory (default /)\n",
90 " - list files in a directory\n"
93 int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
99 printf ("FAT info: %d\n", file_fat_detectfs ());
104 cmd_tbl_t U_BOOT_CMD(FATINFO) = MK_CMD_ENTRY(
105 "fatinfo", 1, 1, do_fat_fsinfo,
106 "fatinfo - print information about filesystem\n",
108 " - print information about filesystem\n"
111 #ifdef NOT_IMPLEMENTED_YET
112 /* find first device whose first partition is a DOS filesystem */
113 int find_fat_partition (void)
116 block_dev_desc_t *dev_desc;
117 unsigned char *part_table;
118 unsigned char buffer[ATA_BLOCKSIZE];
120 for (i = 0; i < CFG_IDE_MAXDEVICE; i++) {
121 dev_desc = ide_get_dev (i);
123 debug ("couldn't get ide device!\n");
126 if (dev_desc->part_type == PART_TYPE_DOS) {
128 block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
129 debug ("can't perform block_read!\n");
132 part_table = &buffer[0x1be]; /* start with partition #4 */
133 for (j = 0; j < 4; j++) {
134 if ((part_table[4] == 1 || /* 12-bit FAT */
135 part_table[4] == 4 || /* 16-bit FAT */
136 part_table[4] == 6) && /* > 32Meg part */
137 part_table[0] == 0x80) { /* bootable? */
139 part_offset = part_table[11];
141 part_offset |= part_table[10];
143 part_offset |= part_table[9];
145 part_offset |= part_table[8];
146 debug ("found partition start at %ld\n", part_offset);
154 debug ("no valid devices found!\n");
159 do_fat_dump (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
168 printf ("needs an argument!\n");
172 bknum = simple_strtoul (argv[1], NULL, 10);
174 if (disk_read (0, bknum, block) != 0) {
175 printf ("Error: reading block\n");
178 printf ("FAT dump: %d\n", bknum);
179 hexdump (512, block);
184 int disk_read (__u32 startblock, __u32 getsize, __u8 *bufptr)
187 block_dev_desc_t *dev_desc;
190 if (find_fat_partition () != 0)
194 dev_desc = ide_get_dev (curr_dev);
196 debug ("couldn't get ide device\n");
200 tot = dev_desc->block_read (0, startblock + part_offset,
201 getsize, (ulong *) bufptr);
203 /* should we do this here?
204 flush_cache ((ulong)buf, cnt*ide_dev_desc[device].blksz);
210 debug ("unable to read from device!\n");
216 static int isprint (unsigned char ch)
218 if (ch >= 32 && ch < 127)
225 void hexdump (int cnt, unsigned char *data)
233 printf ("%04X : ", offset);
239 for (i = 0; i < run; i++)
240 printf ("%02X ", (unsigned int) data[i]);
242 for (i = 0; i < run; i++)
243 printf ("%c", isprint (data[i]) ? data[i] : '.');
249 #endif /* NOT_IMPLEMENTED_YET */
251 #endif /* CFG_CMD_FAT */