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
27 #include <sys/cdefs.h>
28 #include <stand.h>
29 #include <sys/param.h>
30 #include <sys/reboot.h>
31 #include <sys/boot.h>
32 #include <sys/linker.h>
33 #include <gfx_fb.h>
34 #include "bootstrap.h"
35 #include "libi386.h"
36 #include "vbe.h"
37 #include "btxv86.h"
38
39 void
bi_load_vbe_data(struct preloaded_file * kfp)40 bi_load_vbe_data(struct preloaded_file *kfp)
41 {
42 if (!kfp->f_tg_kernel_support) {
43 /*
44 * Loaded kernel does not have vt/vbe backend,
45 * switch console to text mode.
46 */
47 if (vbe_available())
48 bios_set_text_mode(VGA_TEXT_MODE);
49 return;
50 }
51
52 if (vbe_available()) {
53 file_addmetadata(kfp, MODINFOMD_VBE_FB,
54 sizeof(gfx_state.tg_fb), &gfx_state.tg_fb);
55 }
56 }
57
58 int
bi_getboothowto(char * kargs)59 bi_getboothowto(char *kargs)
60 {
61 char *curpos, *next, *string;
62 int howto;
63 int vidconsole;
64
65 howto = boot_parse_cmdline(kargs);
66 howto |= boot_env_to_howto();
67
68 /* Enable selected consoles */
69 string = next = strdup(getenv("console"));
70 vidconsole = 0;
71 while (next != NULL) {
72 curpos = strsep(&next, " ,");
73 if (*curpos == '\0')
74 continue;
75 if (!strcmp(curpos, "vidconsole"))
76 vidconsole = 1;
77 else if (!strcmp(curpos, "comconsole"))
78 howto |= RB_SERIAL;
79 else if (!strcmp(curpos, "nullconsole"))
80 howto |= RB_MUTE;
81 }
82
83 if (vidconsole && (howto & RB_SERIAL))
84 howto |= RB_MULTIPLE;
85
86 /*
87 * XXX: Note that until the kernel is ready to respect multiple consoles
88 * for the boot messages, the first named console is the primary console
89 */
90 if (!strcmp(string, "vidconsole"))
91 howto &= ~RB_SERIAL;
92
93 free(string);
94
95 return(howto);
96 }
97
98 void
bi_setboothowto(int howto)99 bi_setboothowto(int howto)
100 {
101
102 boot_howto_to_env(howto);
103 }
104