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71f95118 WD |
1 | /* |
2 | * (C) Copyright 2002 | |
3 | * Richard Jones, rjones@nexus-tech.net | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Boot support | |
26 | */ | |
27 | #include <common.h> | |
28 | #include <command.h> | |
29 | #include <cmd_boot.h> | |
30 | #include <cmd_autoscript.h> | |
31 | #include <s_record.h> | |
32 | #include <net.h> | |
33 | #include <ata.h> | |
34 | ||
35 | #if (CONFIG_COMMANDS & CFG_CMD_FAT) | |
36 | ||
37 | #undef DEBUG | |
38 | ||
39 | #include <fat.h> | |
40 | ||
41 | extern block_dev_desc_t *ide_get_dev (int dev); | |
42 | ||
43 | int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
44 | { | |
45 | long size; | |
46 | unsigned long offset; | |
47 | unsigned long count; | |
48 | ||
49 | if (argc < 3) { | |
50 | printf ("usage:fatload <filename> <addr> [bytes]\n"); | |
51 | return (0); | |
52 | } | |
53 | ||
54 | offset = simple_strtoul (argv[2], NULL, 16); | |
55 | if (argc == 4) | |
56 | count = simple_strtoul (argv[3], NULL, 16); | |
57 | else | |
58 | count = 0; | |
59 | ||
60 | size = file_fat_read (argv[1], (unsigned char *) offset, count); | |
61 | ||
62 | printf ("%ld bytes read\n", size); | |
63 | ||
64 | return size; | |
65 | } | |
66 | ||
67 | int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
68 | { | |
69 | char *filename = "/"; | |
70 | int ret; | |
71 | ||
72 | if (argc == 2) | |
73 | ret = file_fat_ls (argv[1]); | |
74 | else | |
75 | ret = file_fat_ls (filename); | |
76 | ||
77 | return (ret); | |
78 | } | |
79 | ||
80 | int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
81 | { | |
82 | int ret; | |
83 | ||
84 | ret = 0; | |
85 | ||
86 | printf ("FAT info: %d\n", file_fat_detectfs ()); | |
87 | ||
88 | return (ret); | |
89 | } | |
90 | ||
91 | #ifdef NOT_IMPLEMENTED_YET | |
92 | /* find first device whose first partition is a DOS filesystem */ | |
93 | int find_fat_partition (void) | |
94 | { | |
95 | int i, j; | |
96 | block_dev_desc_t *dev_desc; | |
97 | unsigned char *part_table; | |
98 | unsigned char buffer[ATA_BLOCKSIZE]; | |
99 | ||
100 | for (i = 0; i < CFG_IDE_MAXDEVICE; i++) { | |
101 | dev_desc = ide_get_dev (i); | |
102 | if (!dev_desc) { | |
103 | debug ("couldn't get ide device!\n"); | |
104 | return (-1); | |
105 | } | |
106 | if (dev_desc->part_type == PART_TYPE_DOS) { | |
107 | if (dev_desc-> | |
108 | block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) { | |
109 | debug ("can't perform block_read!\n"); | |
110 | return (-1); | |
111 | } | |
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? */ | |
118 | curr_dev = i; | |
119 | part_offset = part_table[11]; | |
120 | part_offset <<= 8; | |
121 | part_offset |= part_table[10]; | |
122 | part_offset <<= 8; | |
123 | part_offset |= part_table[9]; | |
124 | part_offset <<= 8; | |
125 | part_offset |= part_table[8]; | |
126 | debug ("found partition start at %ld\n", part_offset); | |
127 | return (0); | |
128 | } | |
129 | part_table += 16; | |
130 | } | |
131 | } | |
132 | } | |
133 | ||
134 | debug ("no valid devices found!\n"); | |
135 | return (-1); | |
136 | } | |
137 | ||
138 | int | |
139 | do_fat_dump (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) | |
140 | { | |
141 | __u8 block[1024]; | |
142 | int ret; | |
143 | int bknum; | |
144 | ||
145 | ret = 0; | |
146 | ||
147 | if (argc != 2) { | |
148 | printf ("needs an argument!\n"); | |
149 | return (0); | |
150 | } | |
151 | ||
152 | bknum = simple_strtoul (argv[1], NULL, 10); | |
153 | ||
154 | if (disk_read (0, bknum, block) != 0) { | |
155 | printf ("Error: reading block\n"); | |
156 | return -1; | |
157 | } | |
158 | printf ("FAT dump: %d\n", bknum); | |
159 | hexdump (512, block); | |
160 | ||
161 | return (ret); | |
162 | } | |
163 | ||
164 | int disk_read (__u32 startblock, __u32 getsize, __u8 *bufptr) | |
165 | { | |
166 | ulong tot; | |
167 | block_dev_desc_t *dev_desc; | |
168 | ||
169 | if (curr_dev < 0) { | |
170 | if (find_fat_partition () != 0) | |
171 | return (-1); | |
172 | } | |
173 | ||
174 | dev_desc = ide_get_dev (curr_dev); | |
175 | if (!dev_desc) { | |
176 | debug ("couldn't get ide device\n"); | |
177 | return (-1); | |
178 | } | |
179 | ||
180 | tot = dev_desc->block_read (0, startblock + part_offset, | |
181 | getsize, (ulong *) bufptr); | |
182 | ||
183 | /* should we do this here? | |
184 | flush_cache ((ulong)buf, cnt*ide_dev_desc[device].blksz); | |
185 | */ | |
186 | ||
187 | if (tot == getsize) | |
188 | return (0); | |
189 | ||
190 | debug ("unable to read from device!\n"); | |
191 | ||
192 | return (-1); | |
193 | } | |
194 | ||
195 | ||
196 | static int isprint (unsigned char ch) | |
197 | { | |
198 | if (ch >= 32 && ch < 127) | |
199 | return (1); | |
200 | ||
201 | return (0); | |
202 | } | |
203 | ||
204 | ||
205 | void hexdump (int cnt, unsigned char *data) | |
206 | { | |
207 | int i; | |
208 | int run; | |
209 | int offset; | |
210 | ||
211 | offset = 0; | |
212 | while (cnt) { | |
213 | printf ("%04X : ", offset); | |
214 | if (cnt >= 16) | |
215 | run = 16; | |
216 | else | |
217 | run = cnt; | |
218 | cnt -= run; | |
219 | for (i = 0; i < run; i++) | |
220 | printf ("%02X ", (unsigned int) data[i]); | |
221 | printf (": "); | |
222 | for (i = 0; i < run; i++) | |
223 | printf ("%c", isprint (data[i]) ? data[i] : '.'); | |
224 | printf ("\n"); | |
225 | data = &data[16]; | |
226 | offset += run; | |
227 | } | |
228 | } | |
229 | #endif /* NOT_IMPLEMENTED_YET */ | |
230 | ||
231 | #endif /* CFG_CMD_FAT */ |