111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
#include <furi.h>
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#include <one_wire/maxim_crc.h>
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#include "ibutton_key.h"
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struct iButtonKey {
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uint8_t data[IBUTTON_KEY_DATA_SIZE];
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iButtonKeyType type;
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};
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iButtonKey* ibutton_key_alloc() {
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iButtonKey* key = malloc(sizeof(iButtonKey));
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memset(key, 0, sizeof(iButtonKey));
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return key;
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}
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void ibutton_key_free(iButtonKey* key) {
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free(key);
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}
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void ibutton_key_set(iButtonKey* to, const iButtonKey* from) {
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memcpy(to, from, sizeof(iButtonKey));
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}
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void ibutton_key_set_data(iButtonKey* key, uint8_t* data, uint8_t data_count) {
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furi_check(data_count > 0);
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furi_check(data_count <= IBUTTON_KEY_DATA_SIZE);
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memset(key->data, 0, IBUTTON_KEY_DATA_SIZE);
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memcpy(key->data, data, data_count);
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}
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void ibutton_key_clear_data(iButtonKey* key) {
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memset(key->data, 0, IBUTTON_KEY_DATA_SIZE);
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}
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const uint8_t* ibutton_key_get_data_p(iButtonKey* key) {
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return key->data;
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}
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uint8_t ibutton_key_get_data_size(iButtonKey* key) {
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return ibutton_key_get_size_by_type(key->type);
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}
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void ibutton_key_set_type(iButtonKey* key, iButtonKeyType key_type) {
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key->type = key_type;
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}
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iButtonKeyType ibutton_key_get_type(iButtonKey* key) {
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return key->type;
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}
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const char* ibutton_key_get_string_by_type(iButtonKeyType key_type) {
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switch(key_type) {
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case iButtonKeyCyfral:
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return "Cyfral";
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break;
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case iButtonKeyMetakom:
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return "Metakom";
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break;
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case iButtonKeyDS1990:
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return "Dallas";
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break;
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default:
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furi_crash("Invalid iButton type");
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}
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}
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bool ibutton_key_get_type_by_string(const char* type_string, iButtonKeyType* key_type) {
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if(strcmp(type_string, ibutton_key_get_string_by_type(iButtonKeyCyfral)) == 0) {
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*key_type = iButtonKeyCyfral;
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} else if(strcmp(type_string, ibutton_key_get_string_by_type(iButtonKeyMetakom)) == 0) {
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*key_type = iButtonKeyMetakom;
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} else if(strcmp(type_string, ibutton_key_get_string_by_type(iButtonKeyDS1990)) == 0) {
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*key_type = iButtonKeyDS1990;
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} else {
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return false;
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}
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return true;
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}
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uint8_t ibutton_key_get_size_by_type(iButtonKeyType key_type) {
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uint8_t size = 0;
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switch(key_type) {
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case iButtonKeyCyfral:
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size = 2;
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break;
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case iButtonKeyMetakom:
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size = 4;
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break;
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case iButtonKeyDS1990:
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size = 8;
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break;
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}
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return size;
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}
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uint8_t ibutton_key_get_max_size() {
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return IBUTTON_KEY_DATA_SIZE;
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}
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bool ibutton_key_dallas_crc_is_valid(iButtonKey* key) {
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return (maxim_crc8(key->data, 8, MAXIM_CRC8_INIT) == 0);
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}
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bool ibutton_key_dallas_is_1990_key(iButtonKey* key) {
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return (key->data[0] == 0x01);
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}
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