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,
30 #include <cmd_autoscript.h>
35 #if (CONFIG_COMMANDS & CFG_CMD_FAT)
41 extern block_dev_desc_t *ide_get_dev (int dev);
43 int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
50 printf ("usage:fatload <filename> <addr> [bytes]\n");
54 offset = simple_strtoul (argv[2], NULL, 16);
56 count = simple_strtoul (argv[3], NULL, 16);
60 size = file_fat_read (argv[1], (unsigned char *) offset, count);
62 printf ("%ld bytes read\n", size);
67 int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
73 ret = file_fat_ls (argv[1]);
75 ret = file_fat_ls (filename);
80 int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
86 printf ("FAT info: %d\n", file_fat_detectfs ());
91 #ifdef NOT_IMPLEMENTED_YET
92 /* find first device whose first partition is a DOS filesystem */
93 int find_fat_partition (void)
96 block_dev_desc_t *dev_desc;
97 unsigned char *part_table;
98 unsigned char buffer[ATA_BLOCKSIZE];
100 for (i = 0; i < CFG_IDE_MAXDEVICE; i++) {
101 dev_desc = ide_get_dev (i);
103 debug ("couldn't get ide device!\n");
106 if (dev_desc->part_type == PART_TYPE_DOS) {
108 block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
109 debug ("can't perform block_read!\n");
112 part_table = &buffer[0x1be]; /* start with partition #4 */
113 for (j = 0; j < 4; j++) {
114 if ((part_table[4] == 1 || /* 12-bit FAT */
115 part_table[4] == 4 || /* 16-bit FAT */
116 part_table[4] == 6) && /* > 32Meg part */
117 part_table[0] == 0x80) { /* bootable? */
119 part_offset = part_table[11];
121 part_offset |= part_table[10];
123 part_offset |= part_table[9];
125 part_offset |= part_table[8];
126 debug ("found partition start at %ld\n", part_offset);
134 debug ("no valid devices found!\n");
139 do_fat_dump (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
148 printf ("needs an argument!\n");
152 bknum = simple_strtoul (argv[1], NULL, 10);
154 if (disk_read (0, bknum, block) != 0) {
155 printf ("Error: reading block\n");
158 printf ("FAT dump: %d\n", bknum);
159 hexdump (512, block);
164 int disk_read (__u32 startblock, __u32 getsize, __u8 *bufptr)
167 block_dev_desc_t *dev_desc;
170 if (find_fat_partition () != 0)
174 dev_desc = ide_get_dev (curr_dev);
176 debug ("couldn't get ide device\n");
180 tot = dev_desc->block_read (0, startblock + part_offset,
181 getsize, (ulong *) bufptr);
183 /* should we do this here?
184 flush_cache ((ulong)buf, cnt*ide_dev_desc[device].blksz);
190 debug ("unable to read from device!\n");
196 static int isprint (unsigned char ch)
198 if (ch >= 32 && ch < 127)
205 void hexdump (int cnt, unsigned char *data)
213 printf ("%04X : ", offset);
219 for (i = 0; i < run; i++)
220 printf ("%02X ", (unsigned int) data[i]);
222 for (i = 0; i < run; i++)
223 printf ("%c", isprint (data[i]) ? data[i] : '.');
229 #endif /* NOT_IMPLEMENTED_YET */
231 #endif /* CFG_CMD_FAT */