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129 lines
3.4 KiB
129 lines
3.4 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 phandle references in dtc |
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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 void check_ref(const void *fdt, int node, uint32_t checkref) |
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{ |
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const fdt32_t *p; |
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uint32_t ref; |
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int len; |
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p = fdt_getprop(fdt, node, "ref", &len); |
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if (!p) |
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FAIL("fdt_getprop(%d, \"ref\"): %s", node, fdt_strerror(len)); |
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if (len != sizeof(*p)) |
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FAIL("'ref' in node at %d has wrong size (%d instead of %zd)", |
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node, len, sizeof(*p)); |
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ref = fdt32_to_cpu(*p); |
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if (ref != checkref) |
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FAIL("'ref' in node at %d has value 0x%x instead of 0x%x", |
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node, ref, checkref); |
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p = fdt_getprop(fdt, node, "lref", &len); |
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if (!p) |
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FAIL("fdt_getprop(%d, \"lref\"): %s", node, fdt_strerror(len)); |
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if (len != sizeof(*p)) |
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FAIL("'lref' in node at %d has wrong size (%d instead of %zd)", |
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node, len, sizeof(*p)); |
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ref = fdt32_to_cpu(*p); |
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if (ref != checkref) |
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FAIL("'lref' in node at %d has value 0x%x instead of 0x%x", |
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node, ref, checkref); |
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} |
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static void check_rref(const void *fdt) |
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{ |
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const fdt32_t *p; |
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uint32_t ref; |
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int len; |
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p = fdt_getprop(fdt, 0, "rref", &len); |
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if (!p) |
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FAIL("fdt_getprop(0, \"rref\"): %s", fdt_strerror(len)); |
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if (len != sizeof(*p)) |
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FAIL("'rref' in root node has wrong size (%d instead of %zd)", |
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len, sizeof(*p)); |
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ref = fdt32_to_cpu(*p); |
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if (ref != fdt_get_phandle(fdt, 0)) |
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FAIL("'rref' in root node has value 0x%x instead of 0x0", ref); |
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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 n1, n2, n3, n4, n5, n6, err; |
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uint32_t h1, h2, h4, h5, h6, hn; |
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test_init(argc, argv); |
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fdt = load_blob_arg(argc, argv); |
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n1 = fdt_path_offset(fdt, "/node1"); |
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if (n1 < 0) |
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FAIL("fdt_path_offset(/node1): %s", fdt_strerror(n1)); |
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n2 = fdt_path_offset(fdt, "/node2"); |
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if (n2 < 0) |
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FAIL("fdt_path_offset(/node2): %s", fdt_strerror(n2)); |
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n3 = fdt_path_offset(fdt, "/node3"); |
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if (n3 < 0) |
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FAIL("fdt_path_offset(/node3): %s", fdt_strerror(n3)); |
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n4 = fdt_path_offset(fdt, "/node4"); |
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if (n4 < 0) |
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FAIL("fdt_path_offset(/node4): %s", fdt_strerror(n4)); |
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n5 = fdt_path_offset(fdt, "/node5"); |
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if (n5 < 0) |
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FAIL("fdt_path_offset(/node5): %s", fdt_strerror(n5)); |
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n6 = fdt_path_offset(fdt, "/node6"); |
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if (n6 < 0) |
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FAIL("fdt_path_offset(/node6): %s", fdt_strerror(n6)); |
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h1 = fdt_get_phandle(fdt, n1); |
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h2 = fdt_get_phandle(fdt, n2); |
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h4 = fdt_get_phandle(fdt, n4); |
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h5 = fdt_get_phandle(fdt, n5); |
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h6 = fdt_get_phandle(fdt, n6); |
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if (h1 != 0x2000) |
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FAIL("/node1 has wrong phandle, 0x%x instead of 0x%x", |
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h1, 0x2000); |
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if (h2 != 0x1) |
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FAIL("/node2 has wrong phandle, 0x%x instead of 0x%x", |
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h2, 0x1); |
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if (h6 != FDT_MAX_PHANDLE) |
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FAIL("/node6 has wrong phandle, 0x%x instead of 0x%x", |
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h6, FDT_MAX_PHANDLE); |
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if ((h4 == 0x2000) || (h4 == 0x1) || (h4 == 0)) |
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FAIL("/node4 has bad phandle, 0x%x", h4); |
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if ((h5 == 0) || (h5 == ~0U)) |
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FAIL("/node5 has bad phandle, 0x%x", h5); |
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if ((h5 == h4) || (h5 == h2) || (h5 == h1)) |
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FAIL("/node5 has duplicate phandle, 0x%x", h5); |
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/* |
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* /node6 has phandle FDT_MAX_PHANDLE, so fdt_generate_phandle() is |
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* expected to fail. |
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*/ |
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err = fdt_generate_phandle(fdt, &hn); |
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if (err != -FDT_ERR_NOPHANDLES) |
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FAIL("generated invalid phandle 0x%x\n", hn); |
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check_ref(fdt, n1, h2); |
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check_ref(fdt, n2, h1); |
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check_ref(fdt, n3, h4); |
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check_rref(fdt); |
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PASS(); |
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}
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