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1 /* |
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2 * libfdt - Flat Device Tree manipulation |
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3 * Testcase for fdt_path_offset() |
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4 * Copyright (C) 2006 David Gibson, IBM Corporation. |
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5 * |
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6 * This library is free software; you can redistribute it and/or |
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7 * modify it under the terms of the GNU Lesser General Public License |
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8 * as published by the Free Software Foundation; either version 2.1 of |
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9 * the License, or (at your option) any later version. |
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10 * |
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11 * This library is distributed in the hope that it will be useful, but |
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 * Lesser General Public License for more details. |
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15 * |
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16 * You should have received a copy of the GNU Lesser General Public |
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17 * License along with this library; if not, write to the Free Software |
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18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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19 */ |
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20 #include <stdlib.h> |
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21 #include <stdio.h> |
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22 #include <string.h> |
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23 #include <stdint.h> |
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24 |
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25 #include <fdt.h> |
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26 #include <libfdt.h> |
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27 |
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28 #include "tests.h" |
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29 #include "testdata.h" |
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30 |
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31 int check_subnode(void *fdt, int parent, const char *name) |
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32 { |
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33 int offset; |
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34 const struct fdt_node_header *nh; |
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35 uint32_t tag; |
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36 |
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37 verbose_printf("Checking subnode \"%s\" of %d...", name, parent); |
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38 offset = fdt_subnode_offset(fdt, parent, name); |
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39 verbose_printf("offset %d...", offset); |
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40 if (offset < 0) |
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41 FAIL("fdt_subnode_offset(\"%s\"): %s", name, fdt_strerror(offset)); |
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42 nh = fdt_offset_ptr(fdt, offset, sizeof(*nh)); |
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43 verbose_printf("pointer %p\n", nh); |
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44 if (! nh) |
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45 FAIL("NULL retrieving subnode \"%s\"", name); |
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46 |
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47 tag = fdt32_to_cpu(nh->tag); |
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48 |
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49 if (tag != FDT_BEGIN_NODE) |
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50 FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name); |
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51 if (!nodename_eq(nh->name, name)) |
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52 FAIL("Subnode name mismatch \"%s\" instead of \"%s\"", |
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53 nh->name, name); |
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54 |
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55 return offset; |
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56 } |
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57 |
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58 int main(int argc, char *argv[]) |
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59 { |
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60 void *fdt; |
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61 int root_offset; |
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62 int subnode1_offset, subnode2_offset; |
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63 int subnode1_offset_p, subnode2_offset_p; |
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64 int subsubnode1_offset, subsubnode2_offset, subsubnode2_offset2; |
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65 int subsubnode1_offset_p, subsubnode2_offset_p, subsubnode2_offset2_p; |
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66 |
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67 test_init(argc, argv); |
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68 fdt = load_blob_arg(argc, argv); |
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69 |
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70 root_offset = fdt_path_offset(fdt, "/"); |
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71 if (root_offset < 0) |
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72 FAIL("fdt_path_offset(\"/\") failed: %s", |
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73 fdt_strerror(root_offset)); |
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74 else if (root_offset != 0) |
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75 FAIL("fdt_path_offset(\"/\") returns incorrect offset %d", |
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76 root_offset); |
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77 subnode1_offset = check_subnode(fdt, 0, "subnode@1"); |
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78 subnode2_offset = check_subnode(fdt, 0, "subnode@2"); |
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79 |
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80 subnode1_offset_p = fdt_path_offset(fdt, "/subnode@1"); |
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81 subnode2_offset_p = fdt_path_offset(fdt, "/subnode@2"); |
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82 |
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83 if (subnode1_offset != subnode1_offset_p) |
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84 FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)", |
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85 subnode1_offset, subnode1_offset_p); |
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86 |
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87 if (subnode2_offset != subnode2_offset_p) |
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88 FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)", |
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89 subnode2_offset, subnode2_offset_p); |
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90 |
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91 subsubnode1_offset = check_subnode(fdt, subnode1_offset, "subsubnode"); |
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92 subsubnode2_offset = check_subnode(fdt, subnode2_offset, "subsubnode@0"); |
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93 subsubnode2_offset2 = check_subnode(fdt, subnode2_offset, "subsubnode"); |
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94 |
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95 subsubnode1_offset_p = fdt_path_offset(fdt, "/subnode@1/subsubnode"); |
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96 subsubnode2_offset_p = fdt_path_offset(fdt, "/subnode@2/subsubnode@0"); |
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97 subsubnode2_offset2_p = fdt_path_offset(fdt, "/subnode@2/subsubnode"); |
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98 |
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99 if (subsubnode1_offset != subsubnode1_offset_p) |
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100 FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)", |
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101 subsubnode1_offset, subsubnode1_offset_p); |
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102 |
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103 if (subsubnode2_offset != subsubnode2_offset_p) |
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104 FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)", |
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105 subsubnode2_offset, subsubnode2_offset_p); |
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106 |
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107 PASS(); |
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108 } |