Mayank Grover | f3b7818 | 2017-12-19 13:31:30 +0530 | [diff] [blame] | 1 | |
| 2 | #ifndef UFDT_UTIL_H |
| 3 | #define UFDT_UTIL_H |
| 4 | |
| 5 | #include "fdt_internal.h" |
| 6 | #include "ufdt_types.h" |
| 7 | |
| 8 | static const char *tag_name(uint32_t tag) { |
| 9 | switch (tag) { |
| 10 | case FDT_BEGIN_NODE: |
| 11 | return "FDT_BEGIN_NODE"; |
| 12 | case FDT_END_NODE: |
| 13 | return "FDT_END_NODE"; |
| 14 | case FDT_PROP: |
| 15 | return "FDT_PROP"; |
| 16 | case FDT_END: |
| 17 | return "FDT_END"; |
| 18 | } |
| 19 | return ""; |
| 20 | } |
| 21 | |
| 22 | static const char *get_name(void *fdtp, struct ufdt_node *node) { |
| 23 | if (!fdtp || !node) return NULL; |
| 24 | |
| 25 | const struct fdt_node_header *nh; |
| 26 | const struct fdt_property *prop; |
| 27 | |
| 28 | uint32_t tag = tag_of(node); |
| 29 | |
| 30 | switch (tag) { |
| 31 | case FDT_BEGIN_NODE: |
| 32 | nh = (const struct fdt_node_header *)node->fdt_tag_ptr; |
| 33 | return nh->name; |
| 34 | case FDT_PROP: |
| 35 | prop = (const struct fdt_property *)node->fdt_tag_ptr; |
| 36 | return fdt_string(fdtp, fdt32_to_cpu(prop->nameoff)); |
| 37 | default: |
| 38 | return ""; |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | static const void *value_of(const struct ufdt_node *node) { |
| 43 | if (!node) { |
| 44 | dto_error( "Failed to get value since tree or node is NULL\n"); |
| 45 | return NULL; |
| 46 | } |
| 47 | return node->fdt_tag_ptr; |
| 48 | } |
| 49 | |
| 50 | static int get_hash_len(const char *str, int len) { |
| 51 | int res = 0; |
| 52 | for (int i = 0; i < len; i++) { |
| 53 | res = res * HASH_BASE; |
| 54 | res = res + str[i]; |
| 55 | } |
| 56 | return res; |
| 57 | } |
| 58 | static int get_hash(const char *str) { return get_hash_len(str, dto_strlen(str)); } |
| 59 | |
| 60 | #endif /* UFDT_UTIL_H */ |