source: SVN/rincon/u-boot/common/cmd_fdos.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 3.9 KB
Line 
1/*
2 * (C) Copyright 2002
3 * Stäubli Faverges - <www.staubli.com>
4 * Pierre AUBERT  p.aubert@staubli.com
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25/*
26 * Dos floppy support
27 */
28
29#include <common.h>
30#include <config.h>
31#include <command.h>
32#include <fdc.h>
33
34/*-----------------------------------------------------------------------------
35 * do_fdosboot --
36 *-----------------------------------------------------------------------------
37 */
38int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
39{
40    char *name;
41    char *ep;
42    int size;
43    int rcode = 0;
44    char buf [12];
45    int drive = CFG_FDC_DRIVE_NUMBER;
46
47    /* pre-set load_addr */
48    if ((ep = getenv("loadaddr")) != NULL) {
49        load_addr = simple_strtoul(ep, NULL, 16);
50    }
51
52    /* pre-set Boot file name */
53    if ((name = getenv("bootfile")) == NULL) {
54        name = "uImage";
55    }
56
57    switch (argc) {
58    case 1:
59        break;
60    case 2:
61        /* only one arg - accept two forms:
62         * just load address, or just boot file name.
63         * The latter form must be written "filename" here.
64         */
65        if (argv[1][0] == '"') {        /* just boot filename */
66            name = argv [1];
67        } else {                        /* load address */
68            load_addr = simple_strtoul(argv[1], NULL, 16);
69        }
70        break;
71    case 3:
72        load_addr = simple_strtoul(argv[1], NULL, 16);
73        name = argv [2];
74        break;
75    default:
76        printf ("Usage:\n%s\n", cmdtp->usage);
77        break;
78    }
79
80    /* Init physical layer                                                   */
81    if (!fdc_fdos_init (drive)) {
82        return (-1);
83    }
84
85    /* Open file                                                             */
86    if (dos_open (name) < 0) {
87        printf ("Unable to open %s\n", name);
88        return 1;
89    }
90    if ((size = dos_read (load_addr)) < 0) {
91        printf ("boot error\n");
92        return 1;
93    }
94    flush_cache (load_addr, size);
95
96    sprintf(buf, "%x", size);
97    setenv("filesize", buf);
98
99    printf("Floppy DOS load complete: %d bytes loaded to 0x%lx\n",
100           size, load_addr);
101
102    /* Check if we should attempt an auto-start */
103    if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
104        char *local_args[2];
105        extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
106        local_args[0] = argv[0];
107        local_args[1] = NULL;
108        printf ("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
109        rcode = do_bootm (cmdtp, 0, 1, local_args);
110    }
111    return rcode;
112}
113
114/*-----------------------------------------------------------------------------
115 * do_fdosls --
116 *-----------------------------------------------------------------------------
117 */
118int do_fdosls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
119{
120    char *path = "";
121    int drive = CFG_FDC_DRIVE_NUMBER;
122
123    switch (argc) {
124    case 1:
125        break;
126    case 2:
127        path = argv [1];
128        break;
129    }
130
131    /* Init physical layer                                                   */
132    if (!fdc_fdos_init (drive)) {
133        return (-1);
134    }
135    /* Open directory                                                        */
136    if (dos_open (path) < 0) {
137        printf ("Unable to open %s\n", path);
138        return 1;
139    }
140    return (dos_dir ());
141}
142
143U_BOOT_CMD(
144        fdosboot,       3,      0,      do_fdosboot,
145        "fdosboot- boot from a dos floppy file\n",
146        "[loadAddr] [filename]\n"
147);
148
149U_BOOT_CMD(
150        fdosls, 2,      0,      do_fdosls,
151        "fdosls  - list files in a directory\n",
152        "[directory]\n"
153);
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