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b32074cd44
This allows existing loader.conf files that set "console=comconsole" to work without failing. No functional difference otherwise. Reported by: Michael Dexter, pfSense install. Reviewed by: neel MFC after: 3 weeks
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*-
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* Copyright (c) 2011 Google, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stand.h>
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#include "bootstrap.h"
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#include "libuserboot.h"
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int console;
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static struct console *userboot_comconsp;
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static void userboot_cons_probe(struct console *cp);
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static int userboot_cons_init(int);
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static void userboot_comcons_probe(struct console *cp);
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static int userboot_comcons_init(int);
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static void userboot_cons_putchar(int);
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static int userboot_cons_getchar(void);
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static int userboot_cons_poll(void);
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struct console userboot_console = {
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"userboot",
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"userboot",
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0,
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userboot_cons_probe,
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userboot_cons_init,
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userboot_cons_putchar,
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userboot_cons_getchar,
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userboot_cons_poll,
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};
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/*
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* Provide a simple alias to allow loader scripts to set the
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* console to comconsole without resulting in an error
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*/
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struct console userboot_comconsole = {
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"comconsole",
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"comconsole",
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0,
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userboot_comcons_probe,
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userboot_comcons_init,
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userboot_cons_putchar,
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userboot_cons_getchar,
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userboot_cons_poll,
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};
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static void
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userboot_cons_probe(struct console *cp)
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{
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cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
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}
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static int
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userboot_cons_init(int arg)
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{
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return (0);
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}
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static void
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userboot_comcons_probe(struct console *cp)
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{
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/*
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* Save the console pointer so the comcons_init routine
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* can set the C_PRESENT* flags. They are not set
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* here to allow the existing userboot console to
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* be elected the default.
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*/
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userboot_comconsp = cp;
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}
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static int
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userboot_comcons_init(int arg)
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{
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/*
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* Set the C_PRESENT* flags to allow the comconsole
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* to be selected as the active console
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*/
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userboot_comconsp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
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return (0);
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}
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static void
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userboot_cons_putchar(int c)
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{
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CALLBACK(putc, c);
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}
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static int
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userboot_cons_getchar()
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{
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return (CALLBACK(getc));
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}
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static int
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userboot_cons_poll()
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{
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return (CALLBACK(poll));
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}
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