/* $NetBSD: property_iterate.c,v 1.1.1.1 2017/06/08 15:59:27 skrll Exp $ */ /* * libfdt - Flat Device Tree manipulation * Tests that fdt_next_subnode() works as expected * * Copyright (C) 2013 Google, Inc * * Copyright (C) 2007 David Gibson, IBM Corporation. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include "tests.h" #include "testdata.h" static void test_node(void *fdt, int parent_offset) { uint32_t properties; const fdt32_t *prop; int offset, property; int count; int len; /* * This property indicates the number of properties in our * test node to expect */ prop = fdt_getprop(fdt, parent_offset, "test-properties", &len); if (!prop || len != sizeof(fdt32_t)) { FAIL("Missing/invalid test-properties property at '%s'", fdt_get_name(fdt, parent_offset, NULL)); } properties = fdt32_to_cpu(*prop); count = 0; offset = fdt_first_subnode(fdt, parent_offset); if (offset < 0) FAIL("Missing test node\n"); fdt_for_each_property_offset(property, fdt, offset) count++; if (count != properties) { FAIL("Node '%s': Expected %d properties, got %d\n", fdt_get_name(fdt, parent_offset, NULL), properties, count); } } static void check_fdt_next_subnode(void *fdt) { int offset; int count = 0; fdt_for_each_subnode(offset, fdt, 0) { test_node(fdt, offset); count++; } if (count != 2) FAIL("Expected %d tests, got %d\n", 2, count); } int main(int argc, char *argv[]) { void *fdt; test_init(argc, argv); if (argc != 2) CONFIG("Usage: %s ", argv[0]); fdt = load_blob(argv[1]); if (!fdt) FAIL("No device tree available"); check_fdt_next_subnode(fdt); PASS(); }