/* $NetBSD: fdt_userconf.c,v 1.1 2022/03/25 21:23:51 jmcneill Exp $ */

/*-
* Copyright (c) 2022 Jared McNeill <[email protected]>
* 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 ``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 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>
__KERNEL_RCSID(0, "$NetBSD: fdt_userconf.c,v 1.1 2022/03/25 21:23:51 jmcneill Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/userconf.h>

#include <libfdt.h>
#include <dev/fdt/fdtvar.h>

#define FDT_CHOSEN_PATH                 "/chosen"
#define FDT_CHOSEN_USERCONF_PROP        "netbsd,userconf"

void
userconf_bootinfo(void)
{
       const void *fdt = fdtbus_get_data();
       const char *cmd;
       int chosen, index;

       if (fdt == NULL) {
               return;
       }

       chosen = fdt_path_offset(fdt, FDT_CHOSEN_PATH);
       if (chosen < 0) {
               return;
       }

       index = 0;
       do {
               cmd = fdt_stringlist_get(fdt, chosen, FDT_CHOSEN_USERCONF_PROP,
                   index++, NULL);
               if (cmd != NULL) {
                       aprint_debug("Processing userconf command: %s\n", cmd);
                       userconf_parse(__UNCONST(cmd));
               }
       } while (cmd != NULL);
}