bootmode.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <bootmode.h>
#include <console/console.h>
#include "fw_cfg.h"
 
/*
 * Enable recovery mode with fw_cfg option to qemu:
 *   -fw_cfg name=opt/cros/recovery,string=1
 */
int get_recovery_mode_switch(void)
{
        FWCfgFile f;
 
        if (!fw_cfg_check_file(&f, "opt/cros/recovery")) {
                uint8_t rec_mode;
                if (f.size != 1) {
                        printk(BIOS_ERR, "opt/cros/recovery invalid size %d\n", f.size);
                        return 0;
                }
                fw_cfg_get(f.select, &rec_mode, f.size);
                if (rec_mode == '1') {
                        printk(BIOS_INFO, "Recovery is enabled.\n");
                        return 1;
                }
        }
 
        return 0;
}