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 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 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