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87 lines
1.9 KiB
87 lines
1.9 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_get_phandle() |
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* Copyright (C) 2006 David Gibson, IBM Corporation. |
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*/ |
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#include <stdbool.h> |
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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 void check_phandle(void *fdt, const char *path, uint32_t checkhandle) |
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{ |
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int offset; |
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uint32_t phandle; |
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offset = fdt_path_offset(fdt, path); |
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if (offset < 0) |
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FAIL("Couldn't find %s", path); |
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phandle = fdt_get_phandle(fdt, offset); |
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if (phandle != checkhandle) |
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FAIL("fdt_get_phandle(%s) returned 0x%x instead of 0x%x\n", |
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path, phandle, checkhandle); |
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} |
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static void check_phandle_unique(const void *fdt, uint32_t checkhandle) |
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{ |
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uint32_t phandle; |
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int offset = -1; |
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while (true) { |
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offset = fdt_next_node(fdt, offset, NULL); |
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if (offset < 0) { |
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if (offset == -FDT_ERR_NOTFOUND) |
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break; |
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FAIL("error looking for phandle %#x", checkhandle); |
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} |
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phandle = fdt_get_phandle(fdt, offset); |
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if (phandle == checkhandle) |
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FAIL("generated phandle already exists"); |
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} |
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} |
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int main(int argc, char *argv[]) |
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{ |
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uint32_t max, phandle; |
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void *fdt; |
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int err; |
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test_init(argc, argv); |
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fdt = load_blob_arg(argc, argv); |
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check_phandle(fdt, "/", 0); |
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check_phandle(fdt, "/subnode@2", PHANDLE_1); |
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check_phandle(fdt, "/subnode@2/subsubnode@0", PHANDLE_2); |
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err = fdt_find_max_phandle(fdt, &max); |
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if (err < 0) |
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FAIL("fdt_find_max_phandle returned %d instead of 0\n", err); |
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if (max != PHANDLE_2) |
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FAIL("fdt_find_max_phandle found 0x%x instead of 0x%x", max, |
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PHANDLE_2); |
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max = fdt_get_max_phandle(fdt); |
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if (max != PHANDLE_2) |
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FAIL("fdt_get_max_phandle returned 0x%x instead of 0x%x\n", |
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max, PHANDLE_2); |
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err = fdt_generate_phandle(fdt, &phandle); |
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if (err < 0) |
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FAIL("failed to generate phandle: %d", err); |
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check_phandle_unique(fdt, phandle); |
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PASS(); |
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}
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