1 /* $NetBSD: node_offset_by_phandle.c,v 1.1.1.3 2019/12/22 12:34:07 skrll Exp $ */
2
3 // SPDX-License-Identifier: LGPL-2.1-or-later
4 /*
5 * libfdt - Flat Device Tree manipulation
6 * Testcase for fdt_node_offset_by_phandle()
7 * Copyright (C) 2006 David Gibson, IBM Corporation.
8 */
9 #include <stdlib.h>
10 #include <stdio.h>
11 #include <string.h>
12 #include <stdint.h>
13 #include <stdarg.h>
14
15 #include <libfdt.h>
16
17 #include "tests.h"
18 #include "testdata.h"
19
check_search(void * fdt,uint32_t phandle,int target)20 static void check_search(void *fdt, uint32_t phandle, int target)
21 {
22 int offset;
23
24 offset = fdt_node_offset_by_phandle(fdt, phandle);
25
26 if (offset != target)
27 FAIL("fdt_node_offset_by_phandle(0x%x) returns %d "
28 "instead of %d", phandle, offset, target);
29 }
30
main(int argc,char * argv[])31 int main(int argc, char *argv[])
32 {
33 void *fdt;
34 int subnode2_offset, subsubnode2_offset;
35
36 test_init(argc, argv);
37 fdt = load_blob_arg(argc, argv);
38
39 subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
40 subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0");
41
42 if ((subnode2_offset < 0) || (subsubnode2_offset < 0))
43 FAIL("Can't find required nodes");
44
45 check_search(fdt, PHANDLE_1, subnode2_offset);
46 check_search(fdt, PHANDLE_2, subsubnode2_offset);
47 check_search(fdt, ~PHANDLE_1, -FDT_ERR_NOTFOUND);
48 check_search(fdt, 0, -FDT_ERR_BADPHANDLE);
49 check_search(fdt, -1, -FDT_ERR_BADPHANDLE);
50
51 PASS();
52 }
53