/*
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* libfdt - Flat Device Tree manipulation
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* Testcase for fdt_subnode_offset()
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* Copyright (C) 2006 David Gibson, IBM Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <libfdt.h>
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#include "tests.h"
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#include "testdata.h"
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static int check_subnode(struct fdt_header *fdt, int parent, const char *name)
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{
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int offset;
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const struct fdt_node_header *nh;
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uint32_t tag;
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verbose_printf("Checking subnode \"%s\" of %d...", name, parent);
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offset = fdt_subnode_offset(fdt, parent, name);
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verbose_printf("offset %d...", offset);
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if (offset < 0)
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FAIL("fdt_subnode_offset(\"%s\"): %s", name, fdt_strerror(offset));
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nh = fdt_offset_ptr(fdt, offset, sizeof(*nh));
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verbose_printf("pointer %p\n", nh);
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if (! nh)
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FAIL("NULL retrieving subnode \"%s\"", name);
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tag = fdt32_to_cpu(nh->tag);
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if (tag != FDT_BEGIN_NODE)
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FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name);
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if (!nodename_eq(nh->name, name))
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FAIL("Subnode name mismatch \"%s\" instead of \"%s\"",
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nh->name, name);
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return offset;
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}
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int main(int argc, char *argv[])
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{
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void *fdt;
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int subnode1_offset, subnode2_offset;
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int subsubnode1_offset, subsubnode2_offset, subsubnode2_offset2;
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int ss12_off, ss21_off;
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test_init(argc, argv);
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fdt = load_blob_arg(argc, argv);
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subnode1_offset = check_subnode(fdt, 0, "subnode@1");
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subnode2_offset = check_subnode(fdt, 0, "subnode@2");
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if (subnode1_offset == subnode2_offset)
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FAIL("Different subnodes have same offset");
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check_property_cell(fdt, subnode1_offset, "prop-int", TEST_VALUE_1);
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check_property_cell(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);
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subsubnode1_offset = check_subnode(fdt, subnode1_offset, "subsubnode");
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subsubnode2_offset = check_subnode(fdt, subnode2_offset, "subsubnode@0");
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subsubnode2_offset2 = check_subnode(fdt, subnode2_offset, "subsubnode");
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check_property_cell(fdt, subsubnode1_offset, "prop-int", TEST_VALUE_1);
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check_property_cell(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);
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check_property_cell(fdt, subsubnode2_offset2, "prop-int", TEST_VALUE_2);
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if (subsubnode2_offset != subsubnode2_offset2)
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FAIL("Different offsets with and without unit address");
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check_subnode(fdt, subnode1_offset, "ss1");
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ss21_off = fdt_subnode_offset(fdt, subnode2_offset, "ss1");
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if (ss21_off != -FDT_ERR_NOTFOUND)
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FAIL("Incorrectly found ss1 in subnode2");
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ss12_off = fdt_subnode_offset(fdt, subnode1_offset, "ss2");
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if (ss12_off != -FDT_ERR_NOTFOUND)
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FAIL("Incorrectly found ss2 in subnode1");
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check_subnode(fdt, subnode2_offset, "ss2");
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PASS();
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}
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