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49 | void ofw_tree_init(ofw_tree_node_t *root) |
49 | void ofw_tree_init(ofw_tree_node_t *root) |
50 | { |
50 | { |
51 | ofw_root = root; |
51 | ofw_root = root; |
52 | } |
52 | } |
53 | 53 | ||
54 | /** Return value of the 'name' property. |
54 | /** Get OpenFirmware node property. |
55 | * |
55 | * |
- | 56 | * @param node Node in which to lookup the property. |
|
56 | * @param node Node of interest. |
57 | * @param name Name of the property. |
57 | * |
58 | * |
58 | * @return Value of the 'name' property belonging to the node. |
59 | * @return Pointer to the property structure or NULL if no such property. |
59 | */ |
60 | */ |
60 | const char *ofw_tree_node_name(const ofw_tree_node_t *node) |
61 | ofw_tree_property_t *ofw_tree_getprop(const ofw_tree_node_t *node, const char *name) |
61 | { |
62 | { |
62 | int i; |
63 | int i; |
63 | 64 | ||
64 | for (i = 0; i < node->properties; i++) { |
65 | for (i = 0; i < node->properties; i++) { |
65 | if (strncmp(node->property[i].name, "name", strlen("name")) == 0) { |
66 | if (strcmp(node->property[i].name, name) == 0) |
66 | if (node->property[i].size < 2) |
- | |
67 | panic("Invalid name property.\n"); |
- | |
68 | return node->property[i].value; |
67 | return &node->property[i]; |
69 | } |
68 | } |
- | 69 | ||
- | 70 | return NULL; |
|
70 | } |
71 | } |
71 | 72 | ||
- | 73 | /** Return value of the 'name' property. |
|
- | 74 | * |
|
- | 75 | * @param node Node of interest. |
|
- | 76 | * |
|
- | 77 | * @return Value of the 'name' property belonging to the node. |
|
- | 78 | */ |
|
- | 79 | const char *ofw_tree_node_name(const ofw_tree_node_t *node) |
|
- | 80 | { |
|
- | 81 | ofw_tree_property_t *prop; |
|
- | 82 | ||
- | 83 | prop = ofw_tree_getprop(node, "name"); |
|
- | 84 | if (!prop) |
|
72 | panic("Node without name property.\n"); |
85 | panic("Node without name property.\n"); |
- | 86 | ||
- | 87 | if (prop->size < 2) |
|
- | 88 | panic("Invalid name property.\n"); |
|
- | 89 | ||
- | 90 | return prop->value; |
|
73 | } |
91 | } |
74 | 92 | ||
75 | /** Lookup child of given name. |
93 | /** Lookup child of given name. |
76 | * |
94 | * |
77 | * @param node Node whose child is being looked up. |
95 | * @param node Node whose child is being looked up. |
78 | * @param da_name Disambigued name of the child being looked up. |
96 | * @param name Name of the child being looked up. |
79 | * |
97 | * |
80 | * @return NULL if there is no such child or pointer to the matching child node. |
98 | * @return NULL if there is no such child or pointer to the matching child node. |
81 | */ |
99 | */ |
82 | static ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *node, const char *da_name) |
100 | static ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *node, const char *name) |
83 | { |
101 | { |
84 | ofw_tree_node_t *cur; |
102 | ofw_tree_node_t *cur; |
85 | 103 | ||
- | 104 | /* |
|
- | 105 | * Try to find the disambigued name. |
|
- | 106 | */ |
|
- | 107 | for (cur = node->child; cur; cur = cur->peer) { |
|
- | 108 | if (strcmp(cur->da_name, name) == 0) |
|
- | 109 | return cur; |
|
- | 110 | } |
|
- | 111 | ||
- | 112 | /* |
|
- | 113 | * Disambigued name not found. |
|
- | 114 | * Lets try our luck with possibly ambiguous "name" property. |
|
- | 115 | * |
|
- | 116 | * We need to do this because paths stored in "/aliases" |
|
- | 117 | * are not always fully-qualified. |
|
- | 118 | */ |
|
86 | for (cur = node->child; cur; cur = cur->peer) { |
119 | for (cur = node->child; cur; cur = cur->peer) { |
87 | if (strncmp(cur->da_name, da_name, strlen(da_name)) == 0) |
120 | if (strcmp(ofw_tree_node_name(cur), name) == 0) |
88 | return cur; |
121 | return cur; |
89 | } |
122 | } |
90 | 123 | ||
91 | return NULL; |
124 | return NULL; |
92 | } |
125 | } |