/* $NetBSD: subnode_offset.c,v 1.1.1.2 2017/06/08 15:59:27 skrll Exp $ */ /* * libfdt - Flat Device Tree manipulation * Testcase for fdt_subnode_offset() * Copyright (C) 2006 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 int check_subnode(struct fdt_header *fdt, int parent, const char *name) { int offset; const struct fdt_node_header *nh; uint32_t tag; verbose_printf("Checking subnode \"%s\" of %d...", name, parent); offset = fdt_subnode_offset(fdt, parent, name); verbose_printf("offset %d...", offset); if (offset < 0) FAIL("fdt_subnode_offset(\"%s\"): %s", name, fdt_strerror(offset)); nh = fdt_offset_ptr(fdt, offset, sizeof(*nh)); verbose_printf("pointer %p\n", nh); if (! nh) FAIL("NULL retrieving subnode \"%s\"", name); tag = fdt32_to_cpu(nh->tag); if (tag != FDT_BEGIN_NODE) FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name); if (!nodename_eq(nh->name, name)) FAIL("Subnode name mismatch \"%s\" instead of \"%s\"", nh->name, name); return offset; } int main(int argc, char *argv[]) { void *fdt; int subnode1_offset, subnode2_offset; int subsubnode1_offset, subsubnode2_offset, subsubnode2_offset2; int ss12_off, ss21_off; test_init(argc, argv); fdt = load_blob_arg(argc, argv); subnode1_offset = check_subnode(fdt, 0, "subnode@1"); subnode2_offset = check_subnode(fdt, 0, "subnode@2"); if (subnode1_offset == subnode2_offset) FAIL("Different subnodes have same offset"); check_property_cell(fdt, subnode1_offset, "prop-int", TEST_VALUE_1); check_property_cell(fdt, subnode2_offset, "prop-int", TEST_VALUE_2); subsubnode1_offset = check_subnode(fdt, subnode1_offset, "subsubnode"); subsubnode2_offset = check_subnode(fdt, subnode2_offset, "subsubnode@0"); subsubnode2_offset2 = check_subnode(fdt, subnode2_offset, "subsubnode"); check_property_cell(fdt, subsubnode1_offset, "prop-int", TEST_VALUE_1); check_property_cell(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2); check_property_cell(fdt, subsubnode2_offset2, "prop-int", TEST_VALUE_2); if (subsubnode2_offset != subsubnode2_offset2) FAIL("Different offsets with and without unit address"); check_subnode(fdt, subnode1_offset, "ss1"); ss21_off = fdt_subnode_offset(fdt, subnode2_offset, "ss1"); if (ss21_off != -FDT_ERR_NOTFOUND) FAIL("Incorrectly found ss1 in subnode2"); ss12_off = fdt_subnode_offset(fdt, subnode1_offset, "ss2"); if (ss12_off != -FDT_ERR_NOTFOUND) FAIL("Incorrectly found ss2 in subnode1"); check_subnode(fdt, subnode2_offset, "ss2"); PASS(); }