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/*-
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stand.h>
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/boot.h>
#include <sys/linker.h>
#include <gfx_fb.h>
#include "bootstrap.h"
#include "libi386.h"
#include "vbe.h"
#include "btxv86.h"
void
bi_load_vbe_data(struct preloaded_file *kfp)
{
if (!gfx_state.tg_kernel_supported) {
/*
* Loaded kernel does not have vt/vbe backend,
* switch console to text mode.
*/
if (vbe_available())
bios_set_text_mode(VGA_TEXT_MODE);
return;
}
if (vbe_available()) {
file_addmetadata(kfp, MODINFOMD_VBE_FB,
sizeof(gfx_state.tg_fb), &gfx_state.tg_fb);
}
}
int
bi_getboothowto(char *kargs)
{
char *curpos, *next, *string;
int howto;
int vidconsole;
howto = boot_parse_cmdline(kargs);
howto |= boot_env_to_howto();
/* Enable selected consoles */
string = next = strdup(getenv("console"));
vidconsole = 0;
while (next != NULL) {
curpos = strsep(&next, " ,");
if (*curpos == '\0')
continue;
if (!strcmp(curpos, "vidconsole"))
vidconsole = 1;
else if (!strcmp(curpos, "comconsole"))
howto |= RB_SERIAL;
else if (!strcmp(curpos, "nullconsole"))
howto |= RB_MUTE;
}
if (vidconsole && (howto & RB_SERIAL))
howto |= RB_MULTIPLE;
/*
* XXX: Note that until the kernel is ready to respect multiple consoles
* for the boot messages, the first named console is the primary console
*/
if (!strcmp(string, "vidconsole"))
howto &= ~RB_SERIAL;
free(string);
return(howto);
}
void
bi_setboothowto(int howto)
{
boot_howto_to_env(howto);
}
/*
* Copy the environment into the load area starting at (addr).
* Each variable is formatted as <name>=<value>, with a single nul
* separating each variable, and a double nul terminating the environment.
*/
vm_offset_t
bi_copyenv(vm_offset_t addr)
{
struct env_var *ep;
/* traverse the environment */
for (ep = environ; ep != NULL; ep = ep->ev_next) {
i386_copyin(ep->ev_name, addr, strlen(ep->ev_name));
addr += strlen(ep->ev_name);
i386_copyin("=", addr, 1);
addr++;
if (ep->ev_value != NULL) {
i386_copyin(ep->ev_value, addr, strlen(ep->ev_value));
addr += strlen(ep->ev_value);
}
i386_copyin("", addr, 1);
addr++;
}
i386_copyin("", addr, 1);
addr++;
return(addr);
}
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