1 /* 2 * libfdt - Flat Device Tree manipulation 3 * Testcase for fdt_path_offset() 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 vcheck_search(void *fdt, const char *propname, const void *propval, 32 int proplen, va_list ap) 33 { 34 int offset = -1, target; 35 36 do { 37 target = va_arg(ap, int); 38 verbose_printf("Searching (target = %d): %d ->", 39 target, offset); 40 offset = fdt_node_offset_by_prop_value(fdt, offset, propname, 41 propval, proplen); 42 verbose_printf("%d\n", offset); 43 44 if (offset != target) 45 FAIL("fdt_node_offset_by_prop_value() returns %d " 46 "instead of %d", offset, target); 47 } while (target >= 0); 48 } 49 50 static void check_search(void *fdt, const char *propname, const void *propval, 51 int proplen, ...) 52 { 53 va_list ap; 54 55 va_start(ap, proplen); 56 vcheck_search(fdt, propname, propval, proplen, ap); 57 va_end(ap); 58 } 59 60 static void check_search_str(void *fdt, const char *propname, 61 const char *propval, ...) 62 { 63 va_list ap; 64 65 va_start(ap, propval); 66 vcheck_search(fdt, propname, propval, strlen(propval)+1, ap); 67 va_end(ap); 68 } 69 70 #define check_search_cell(fdt, propname, propval, ...) \ 71 { \ 72 fdt32_t val = cpu_to_fdt32(propval); \ 73 check_search((fdt), (propname), &val, sizeof(val), \ 74 ##__VA_ARGS__); \ 75 } 76 77 int main(int argc, char *argv[]) 78 { 79 void *fdt; 80 int subnode1_offset, subnode2_offset; 81 int subsubnode1_offset, subsubnode2_offset; 82 83 test_init(argc, argv); 84 fdt = load_blob_arg(argc, argv); 85 86 subnode1_offset = fdt_path_offset(fdt, "/subnode@1"); 87 subnode2_offset = fdt_path_offset(fdt, "/subnode@2"); 88 subsubnode1_offset = fdt_path_offset(fdt, "/subnode@1/subsubnode"); 89 subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0"); 90 91 if ((subnode1_offset < 0) || (subnode2_offset < 0) 92 || (subsubnode1_offset < 0) || (subsubnode2_offset < 0)) 93 FAIL("Can't find required nodes"); 94 95 check_search_cell(fdt, "prop-int", TEST_VALUE_1, 0, subnode1_offset, 96 subsubnode1_offset, -FDT_ERR_NOTFOUND); 97 98 check_search_cell(fdt, "prop-int", TEST_VALUE_2, subnode2_offset, 99 subsubnode2_offset, -FDT_ERR_NOTFOUND); 100 101 check_search_str(fdt, "prop-str", TEST_STRING_1, 0, -FDT_ERR_NOTFOUND); 102 103 check_search_str(fdt, "prop-str", "no such string", -FDT_ERR_NOTFOUND); 104 105 check_search_cell(fdt, "prop-int", TEST_VALUE_1+1, -FDT_ERR_NOTFOUND); 106 107 check_search(fdt, "no-such-prop", NULL, 0, -FDT_ERR_NOTFOUND); 108 109 PASS(); 110 } 111
