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/* Copyright 2018 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* High-level firmware wrapper API - user interface for RW firmware
*/
#include "2common.h"
#include "2sysincludes.h"
#include "vboot_api.h"
#include "vboot_kernel.h"
#include "vboot_ui_common.h"
/* One or two beeps to notify that attempted action was disallowed. */
void vb2_error_beep(enum vb2_beep_type beep)
{
switch (beep) {
case VB_BEEP_FAILED:
VbExBeep(250, 200);
break;
default:
case VB_BEEP_NOT_ALLOWED:
VbExBeep(120, 400);
VbExSleepMs(120);
VbExBeep(120, 400);
break;
}
}
void vb2_error_notify(const char *print_msg,
const char *log_msg,
enum vb2_beep_type beep)
{
if (print_msg)
VbExDisplayDebugInfo(print_msg, 0);
if (!log_msg)
log_msg = print_msg;
if (log_msg)
VB2_DEBUG(log_msg);
vb2_error_beep(beep);
}
void vb2_error_no_altfw(void)
{
VB2_DEBUG("Legacy boot is disabled\n");
VbExDisplayDebugInfo("WARNING: Booting legacy BIOS has not been "
"enabled. Refer to the developer-mode "
"documentation for details.\n", 0);
vb2_error_beep(VB_BEEP_NOT_ALLOWED);
}
/**
* Run alternative firmware
*
* This will only return if vboot data fails to commit, secdata_kernel fails to
* lock, or the bootloader cannot be found / fails to start.
*
* @param ctx Context pointer
* @param altfw_num Number of bootloader to start (0=any, 1=first, etc.)
*/
void vb2_try_altfw(struct vb2_context *ctx, int allowed,
enum VbAltFwIndex_t altfw_num)
{
if (!allowed) {
vb2_error_no_altfw();
return;
}
if (vb2_commit_data(ctx)) {
vb2_error_notify("Error committing data on legacy boot.\n",
NULL, VB_BEEP_FAILED);
return;
}
/* Will not return if successful */
VbExLegacy(altfw_num);
vb2_error_notify("Legacy boot failed. Missing BIOS?\n", NULL,
VB_BEEP_FAILED);
}
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