/* $NetBSD: node_offset_by_compatible.c,v 1.1.1.3 2019/12/22 12:34:06 skrll Exp $ */ // SPDX-License-Identifier: LGPL-2.1-or-later /* * libfdt - Flat Device Tree manipulation * Testcase for fdt_node_offset_by_compatible() * Copyright (C) 2006 David Gibson, IBM Corporation. */ #include #include #include #include #include #include #include "tests.h" #include "testdata.h" static void check_search(void *fdt, const char *compat, ...) { va_list ap; int offset = -1, target; va_start(ap, compat); do { target = va_arg(ap, int); verbose_printf("Searching (target = %d): %d ->", target, offset); offset = fdt_node_offset_by_compatible(fdt, offset, compat); verbose_printf("%d\n", offset); if (offset != target) FAIL("fdt_node_offset_by_compatible(%s) returns %d " "instead of %d", compat, offset, target); } while (target >= 0); va_end(ap); } int main(int argc, char *argv[]) { void *fdt; int subnode1_offset, subnode2_offset; int subsubnode1_offset, subsubnode2_offset; test_init(argc, argv); fdt = load_blob_arg(argc, argv); subnode1_offset = fdt_path_offset(fdt, "/subnode@1"); subnode2_offset = fdt_path_offset(fdt, "/subnode@2"); subsubnode1_offset = fdt_path_offset(fdt, "/subnode@1/subsubnode"); subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0"); if ((subnode1_offset < 0) || (subnode2_offset < 0) || (subsubnode1_offset < 0) || (subsubnode2_offset < 0)) FAIL("Can't find required nodes"); check_search(fdt, "test_tree1", 0, -FDT_ERR_NOTFOUND); check_search(fdt, "subnode1", subnode1_offset, -FDT_ERR_NOTFOUND); check_search(fdt, "subsubnode1", subsubnode1_offset, -FDT_ERR_NOTFOUND); check_search(fdt, "subsubnode2", subsubnode2_offset, -FDT_ERR_NOTFOUND); /* Eek.. HACK to make this work whatever the order in the * example tree */ if (subsubnode1_offset < subsubnode2_offset) check_search(fdt, "subsubnode", subsubnode1_offset, subsubnode2_offset, -FDT_ERR_NOTFOUND); else check_search(fdt, "subsubnode", subsubnode2_offset, subsubnode1_offset, -FDT_ERR_NOTFOUND); check_search(fdt, "nothing-like-this", -FDT_ERR_NOTFOUND); PASS(); }