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88 lines
1.9 KiB
88 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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