coreboot-kgpe-d16/src/lib/bootmode.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <rules.h>
#include <bootmode.h>
#include <vendorcode/google/chromeos/chromeos.h>

#if CONFIG_BOOTMODE_STRAPS
int developer_mode_enabled(void)
{
	if (get_developer_mode_switch())
		return 1;
#if CONFIG_VBOOT_VERIFY_FIRMWARE
	if (vboot_enable_developer())
		return 1;
#endif
	return 0;
}

/*
 * This is called in multiple places and has to detect
 * recovery mode triggered from the EC and via shared
 * recovery reason set with crossystem.
 *
 * If shared recovery reason is set:
 * - before VbInit then get_recovery_mode_from_vbnv() is true
 * - after VbInit then vboot_enable_recovery() is true
 *
 * Otherwise the mainboard handler for get_recovery_mode_switch()
 * will detect recovery mode initiated by the EC.
 */
int recovery_mode_enabled(void)
{
	if (get_recovery_mode_switch())
		return 1;
#if CONFIG_CHROMEOS
	if (get_recovery_mode_from_vbnv())
		return 1;
#endif
#if CONFIG_VBOOT_VERIFY_FIRMWARE
	if (vboot_enable_recovery())
		return 1;
#endif
	return 0;
}
#endif /* CONFIG_BOOTMODE_STRAPS */

#if ENV_RAMSTAGE
static int gfx_init_done = -1;

int gfx_get_init_done(void)
{
	if (gfx_init_done < 0)
		return 0;
	return gfx_init_done;
}

void gfx_set_init_done(int done)
{
	gfx_init_done = done;
}
#endif

int display_init_required(void)
{
	/* For Chrome OS always honor vboot_skip_display_init(). */
	if (IS_ENABLED(CONFIG_CHROMEOS))
		return !vboot_skip_display_init();

	/* By default always initialize display. */
	return 1;
}