1 /*
2 * libfdt - Flat Device Tree manipulation
3 * Testcase for fdt_node_offset_by_phandle()
4 * Copyright (C) 2006 David Gibson, IBM Corporation.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation; either version 2.1 of
9 * the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <string.h>
23 #include <stdint.h>
24 #include <stdarg.h>
25
26 #include <libfdt.h>
27
28 #include "tests.h"
29 #include "testdata.h"
30
check_search(void * fdt,uint32_t phandle,int target)31 static void check_search(void *fdt, uint32_t phandle, int target)
32 {
33 int offset;
34
35 offset = fdt_node_offset_by_phandle(fdt, phandle);
36
37 if (offset != target)
38 FAIL("fdt_node_offset_by_phandle(0x%x) returns %d "
39 "instead of %d", phandle, offset, target);
40 }
41
main(int argc,char * argv[])42 int main(int argc, char *argv[])
43 {
44 void *fdt;
45 int subnode2_offset, subsubnode2_offset;
46
47 test_init(argc, argv);
48 fdt = load_blob_arg(argc, argv);
49
50 subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
51 subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0");
52
53 if ((subnode2_offset < 0) || (subsubnode2_offset < 0))
54 FAIL("Can't find required nodes");
55
56 check_search(fdt, PHANDLE_1, subnode2_offset);
57 check_search(fdt, PHANDLE_2, subsubnode2_offset);
58 check_search(fdt, ~PHANDLE_1, -FDT_ERR_NOTFOUND);
59 check_search(fdt, 0, -FDT_ERR_BADPHANDLE);
60 check_search(fdt, -1, -FDT_ERR_BADPHANDLE);
61
62 PASS();
63 }
64