1 /* 2 * libfdt - Flat Device Tree manipulation 3 * Testcase for fdt_node_offset_by_compatible() 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 31 static void check_search(void *fdt, const char *compat, ...) 32 { 33 va_list ap; 34 int offset = -1, target; 35 36 va_start(ap, compat); 37 do { 38 target = va_arg(ap, int); 39 verbose_printf("Searching (target = %d): %d ->", 40 target, offset); 41 offset = fdt_node_offset_by_compatible(fdt, offset, compat); 42 verbose_printf("%d\n", offset); 43 44 if (offset != target) 45 FAIL("fdt_node_offset_by_compatible(%s) returns %d " 46 "instead of %d", compat, offset, target); 47 } while (target >= 0); 48 49 va_end(ap); 50 } 51 52 int main(int argc, char *argv[]) 53 { 54 void *fdt; 55 int subnode1_offset, subnode2_offset; 56 int subsubnode1_offset, subsubnode2_offset; 57 58 test_init(argc, argv); 59 fdt = load_blob_arg(argc, argv); 60 61 subnode1_offset = fdt_path_offset(fdt, "/subnode@1"); 62 subnode2_offset = fdt_path_offset(fdt, "/subnode@2"); 63 subsubnode1_offset = fdt_path_offset(fdt, "/subnode@1/subsubnode"); 64 subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0"); 65 66 if ((subnode1_offset < 0) || (subnode2_offset < 0) 67 || (subsubnode1_offset < 0) || (subsubnode2_offset < 0)) 68 FAIL("Can't find required nodes"); 69 70 check_search(fdt, "test_tree1", 0, -FDT_ERR_NOTFOUND); 71 check_search(fdt, "subnode1", subnode1_offset, -FDT_ERR_NOTFOUND); 72 check_search(fdt, "subsubnode1", subsubnode1_offset, -FDT_ERR_NOTFOUND); 73 check_search(fdt, "subsubnode2", subsubnode2_offset, -FDT_ERR_NOTFOUND); 74 /* Eek.. HACK to make this work whatever the order in the 75 * example tree */ 76 if (subsubnode1_offset < subsubnode2_offset) 77 check_search(fdt, "subsubnode", subsubnode1_offset, 78 subsubnode2_offset, -FDT_ERR_NOTFOUND); 79 else 80 check_search(fdt, "subsubnode", subsubnode2_offset, 81 subsubnode1_offset, -FDT_ERR_NOTFOUND); 82 check_search(fdt, "nothing-like-this", -FDT_ERR_NOTFOUND); 83 84 PASS(); 85 } 86