diff options
Diffstat (limited to 'lib/libfdt/fdt_ro.c')
-rw-r--r-- | lib/libfdt/fdt_ro.c | 76 |
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) { |