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-rw-r--r--lib/libfdt/fdt_ro.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/lib/libfdt/fdt_ro.c b/lib/libfdt/fdt_ro.c
index 36af043..03733e5 100644
--- a/lib/libfdt/fdt_ro.c
+++ b/lib/libfdt/fdt_ro.c
@@ -491,6 +491,82 @@ int fdt_stringlist_contains(const char *strlist, int listlen, const char *str)
return 0;
}
+int fdt_count_strings(const void *fdt, int node, const char *property)
+{
+ int length, i, count = 0;
+ const char *list;
+
+ list = fdt_getprop(fdt, node, property, &length);
+ if (!list)
+ return -length;
+
+ for (i = 0; i < length; i++) {
+ int len = strlen(list);
+
+ list += len + 1;
+ i += len;
+ count++;
+ }
+
+ return count;
+}
+
+int fdt_find_string(const void *fdt, int node, const char *property,
+ const char *string)
+{
+ const char *list, *end;
+ int len, index = 0;
+
+ list = fdt_getprop(fdt, node, property, &len);
+ if (!list)
+ return len;
+
+ end = list + len;
+ len = strlen(string);
+
+ while (list < end) {
+ int l = strlen(list);
+
+ if (l == len && memcmp(list, string, len) == 0)
+ return index;
+
+ list += l + 1;
+ index++;
+ }
+
+ return -FDT_ERR_NOTFOUND;
+}
+
+int fdt_get_string_index(const void *fdt, int node, const char *property,
+ int index, const char **output)
+{
+ const char *list;
+ int length, i;
+
+ list = fdt_getprop(fdt, node, property, &length);
+
+ for (i = 0; i < length; i++) {
+ int len = strlen(list);
+
+ if (index == 0) {
+ *output = list;
+ return 0;
+ }
+
+ list += len + 1;
+ i += len;
+ index--;
+ }
+
+ return FDT_ERR_NOTFOUND;
+}
+
+int fdt_get_string(const void *fdt, int node, const char *property,
+ const char **output)
+{
+ return fdt_get_string_index(fdt, node, property, 0, output);
+}
+
int fdt_node_check_compatible(const void *fdt, int nodeoffset,
const char *compatible)
{