1 /*-
2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/boot/i386/libi386/i386_module.c,v 1.12 2003/08/25 23:28:31 obrien Exp $
27 */
28
29 /*
30 * i386-specific module functionality.
31 *
32 */
33
34 #include <stand.h>
35 #include <string.h>
36
37 #include "bootstrap.h"
38 #include "libi386.h"
39
40 /*
41 * Use voodoo to load modules required by current hardware.
42 */
43 int
i386_autoload(void)44 i386_autoload(void)
45 {
46 int error;
47 int disabled;
48 char *rv;
49
50 /* XXX use PnP to locate stuff here */
51
52 /* autoload ACPI support */
53 /* XXX should be in 4th keyed off acpi_load */
54 disabled = 0;
55 rv = getenv("hint.acpi.0.disabled");
56 if (rv != NULL && strncmp(rv, "0", 1) != 0) {
57 disabled = 1;
58 }
59
60 if (getenv("acpi_load") && (!disabled)) {
61 error = mod_load("acpi", NULL, 0, NULL);
62 if (error != 0)
63 printf("ACPI autoload failed - %s\n", strerror(error));
64 }
65
66 disabled = 0;
67 rv = getenv("hint.ehci.0.disabled");
68 if (rv != NULL && strncmp(rv, "0", 1) != 0) {
69 disabled = 1;
70 }
71
72 if (getenv("ehci_load") && (!disabled)) {
73 error = mod_load("ehci", NULL, 0, NULL);
74 if (error != 0)
75 printf("EHCI autoload failed - %s\n", strerror(error));
76 }
77
78 disabled = 0;
79 rv = getenv("hint.xhci.0.disabled");
80 if (rv != NULL && strncmp(rv, "0", 1) != 0) {
81 disabled = 1;
82 }
83
84 if (getenv("xhci_load") && (!disabled)) {
85 error = mod_load("xhci", NULL, 0, NULL);
86 if (error != 0)
87 printf("XHCI autoload failed - %s\n", strerror(error));
88 }
89
90 return(0);
91 }
92