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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* libfdt - Flat Device Tree manipulation
* Testcase for #address-cells and #size-cells handling
* Copyright (C) 2014 David Gibson, <david@gibson.dropbear.id.au>
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <libfdt.h>
#include "tests.h"
#include "testdata.h"
static void check_node(const void *fdt, const char *path, int ac, int sc)
{
int offset;
int xac, xsc;
offset = fdt_path_offset(fdt, path);
if (offset < 0)
FAIL("Couldn't find path %s", path);
xac = fdt_address_cells(fdt, offset);
xsc = fdt_size_cells(fdt, offset);
if (xac != ac)
FAIL("Address cells for %s is %d instead of %d\n",
path, xac, ac);
if (xsc != sc)
FAIL("Size cells for %s is %d instead of %d\n",
path, xsc, sc);
}
int main(int argc, char *argv[])
{
void *fdt;
if (argc != 2)
CONFIG("Usage: %s <dtb file>\n", argv[0]);
test_init(argc, argv);
fdt = load_blob(argv[1]);
check_node(fdt, "/", 2, 2);
check_node(fdt, "/identity-bus@0", 2, 1);
check_node(fdt, "/simple-bus@1000000", 2, 1);
check_node(fdt, "/discrete-bus@2000000", 1, 0);
check_node(fdt, "/c0", -FDT_ERR_BADNCELLS, -FDT_ERR_BADNCELLS);
check_node(fdt, "/c1", -FDT_ERR_BADNCELLS, -FDT_ERR_BADNCELLS);
check_node(fdt, "/c2", -FDT_ERR_BADNCELLS, -FDT_ERR_BADNCELLS);
check_node(fdt, "/c3", -FDT_ERR_BADNCELLS, 0);
PASS();
}