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85 lines
2.6 KiB
85 lines
2.6 KiB
// SPDX-License-Identifier: LGPL-2.1-or-later |
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/* |
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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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#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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