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 31static 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 42int 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