400 lines
15 KiB
C
400 lines
15 KiB
C
#include "honeywell_wdb.h"
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#include "../blocks/const.h"
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#include "../blocks/decoder.h"
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#include "../blocks/encoder.h"
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#include "../blocks/generic.h"
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#include "../blocks/math.h"
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#define TAG "SubGhzProtocolHoneywellWDB"
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/*
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*
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* https://github.com/klohner/honeywell-wireless-doorbell
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*
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*/
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static const SubGhzBlockConst subghz_protocol_honeywell_wdb_const = {
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.te_short = 160,
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.te_long = 320,
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.te_delta = 60,
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.min_count_bit_for_found = 48,
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};
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struct SubGhzProtocolDecoderHoneywell_WDB {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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const char* device_type;
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const char* alert;
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uint8_t secret_knock;
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uint8_t relay;
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uint8_t lowbat;
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};
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struct SubGhzProtocolEncoderHoneywell_WDB {
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SubGhzProtocolEncoderBase base;
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SubGhzProtocolBlockEncoder encoder;
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SubGhzBlockGeneric generic;
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};
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typedef enum {
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Honeywell_WDBDecoderStepReset = 0,
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Honeywell_WDBDecoderStepFoundStartBit,
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Honeywell_WDBDecoderStepSaveDuration,
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Honeywell_WDBDecoderStepCheckDuration,
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} Honeywell_WDBDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_honeywell_wdb_decoder = {
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.alloc = subghz_protocol_decoder_honeywell_wdb_alloc,
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.free = subghz_protocol_decoder_honeywell_wdb_free,
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.feed = subghz_protocol_decoder_honeywell_wdb_feed,
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.reset = subghz_protocol_decoder_honeywell_wdb_reset,
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.get_hash_data = subghz_protocol_decoder_honeywell_wdb_get_hash_data,
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.serialize = subghz_protocol_decoder_honeywell_wdb_serialize,
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.deserialize = subghz_protocol_decoder_honeywell_wdb_deserialize,
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.get_string = subghz_protocol_decoder_honeywell_wdb_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_honeywell_wdb_encoder = {
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.alloc = subghz_protocol_encoder_honeywell_wdb_alloc,
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.free = subghz_protocol_encoder_honeywell_wdb_free,
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.deserialize = subghz_protocol_encoder_honeywell_wdb_deserialize,
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.stop = subghz_protocol_encoder_honeywell_wdb_stop,
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.yield = subghz_protocol_encoder_honeywell_wdb_yield,
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};
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const SubGhzProtocol subghz_protocol_honeywell_wdb = {
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.name = SUBGHZ_PROTOCOL_HONEYWELL_WDB_NAME,
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.type = SubGhzProtocolTypeStatic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_AM |
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SubGhzProtocolFlag_Decodable | SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save |
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SubGhzProtocolFlag_Send,
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.decoder = &subghz_protocol_honeywell_wdb_decoder,
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.encoder = &subghz_protocol_honeywell_wdb_encoder,
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};
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void* subghz_protocol_encoder_honeywell_wdb_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolEncoderHoneywell_WDB* instance =
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malloc(sizeof(SubGhzProtocolEncoderHoneywell_WDB));
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instance->base.protocol = &subghz_protocol_honeywell_wdb;
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instance->generic.protocol_name = instance->base.protocol->name;
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instance->encoder.repeat = 10;
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instance->encoder.size_upload = 128;
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instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration));
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instance->encoder.is_running = false;
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return instance;
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}
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void subghz_protocol_encoder_honeywell_wdb_free(void* context) {
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furi_assert(context);
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SubGhzProtocolEncoderHoneywell_WDB* instance = context;
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free(instance->encoder.upload);
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free(instance);
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}
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/**
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* Generating an upload from data.
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* @param instance Pointer to a SubGhzProtocolEncoderHoneywell_WDB instance
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* @return true On success
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*/
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static bool subghz_protocol_encoder_honeywell_wdb_get_upload(
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SubGhzProtocolEncoderHoneywell_WDB* instance) {
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furi_assert(instance);
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size_t index = 0;
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size_t size_upload = (instance->generic.data_count_bit * 2) + 2;
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if(size_upload > instance->encoder.size_upload) {
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FURI_LOG_E(TAG, "Size upload exceeds allocated encoder buffer.");
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return false;
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} else {
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instance->encoder.size_upload = size_upload;
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}
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//Send header
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_honeywell_wdb_const.te_short * 3);
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//Send key data
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for(uint8_t i = instance->generic.data_count_bit; i > 0; i--) {
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if(bit_read(instance->generic.data, i - 1)) {
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//send bit 1
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_honeywell_wdb_const.te_long);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_honeywell_wdb_const.te_short);
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} else {
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//send bit 0
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_honeywell_wdb_const.te_short);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_honeywell_wdb_const.te_long);
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}
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}
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_honeywell_wdb_const.te_short * 3);
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return true;
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}
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bool subghz_protocol_encoder_honeywell_wdb_deserialize(
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void* context,
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FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolEncoderHoneywell_WDB* instance = context;
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bool res = false;
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do {
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if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
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FURI_LOG_E(TAG, "Deserialize error");
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break;
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}
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if(instance->generic.data_count_bit !=
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subghz_protocol_honeywell_wdb_const.min_count_bit_for_found) {
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FURI_LOG_E(TAG, "Wrong number of bits in key");
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break;
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}
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//optional parameter parameter
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flipper_format_read_uint32(
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flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1);
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subghz_protocol_encoder_honeywell_wdb_get_upload(instance);
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instance->encoder.is_running = true;
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res = true;
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} while(false);
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return res;
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}
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void subghz_protocol_encoder_honeywell_wdb_stop(void* context) {
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SubGhzProtocolEncoderHoneywell_WDB* instance = context;
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instance->encoder.is_running = false;
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}
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LevelDuration subghz_protocol_encoder_honeywell_wdb_yield(void* context) {
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SubGhzProtocolEncoderHoneywell_WDB* instance = context;
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if(instance->encoder.repeat == 0 || !instance->encoder.is_running) {
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instance->encoder.is_running = false;
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return level_duration_reset();
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}
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LevelDuration ret = instance->encoder.upload[instance->encoder.front];
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if(++instance->encoder.front == instance->encoder.size_upload) {
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instance->encoder.repeat--;
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instance->encoder.front = 0;
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}
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return ret;
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}
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void* subghz_protocol_decoder_honeywell_wdb_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolDecoderHoneywell_WDB* instance =
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malloc(sizeof(SubGhzProtocolDecoderHoneywell_WDB));
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instance->base.protocol = &subghz_protocol_honeywell_wdb;
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instance->generic.protocol_name = instance->base.protocol->name;
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return instance;
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}
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void subghz_protocol_decoder_honeywell_wdb_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderHoneywell_WDB* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_honeywell_wdb_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderHoneywell_WDB* instance = context;
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instance->decoder.parser_step = Honeywell_WDBDecoderStepReset;
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}
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void subghz_protocol_decoder_honeywell_wdb_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderHoneywell_WDB* instance = context;
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switch(instance->decoder.parser_step) {
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case Honeywell_WDBDecoderStepReset:
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if((!level) && (DURATION_DIFF(duration, subghz_protocol_honeywell_wdb_const.te_short * 3) <
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subghz_protocol_honeywell_wdb_const.te_delta)) {
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//Found header Honeywell_WDB
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instance->decoder.decode_count_bit = 0;
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instance->decoder.decode_data = 0;
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instance->decoder.parser_step = Honeywell_WDBDecoderStepSaveDuration;
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}
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break;
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case Honeywell_WDBDecoderStepSaveDuration:
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if(level) { //save interval
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if(DURATION_DIFF(duration, subghz_protocol_honeywell_wdb_const.te_short * 3) <
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subghz_protocol_honeywell_wdb_const.te_delta) {
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if((instance->decoder.decode_count_bit ==
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subghz_protocol_honeywell_wdb_const.min_count_bit_for_found) &&
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((instance->decoder.decode_data & 0x01) ==
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subghz_protocol_blocks_get_parity(
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instance->decoder.decode_data >> 1,
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subghz_protocol_honeywell_wdb_const.min_count_bit_for_found - 1))) {
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instance->generic.data = instance->decoder.decode_data;
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instance->generic.data_count_bit = instance->decoder.decode_count_bit;
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if(instance->base.callback)
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instance->base.callback(&instance->base, instance->base.context);
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}
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instance->decoder.parser_step = Honeywell_WDBDecoderStepReset;
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break;
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}
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = Honeywell_WDBDecoderStepCheckDuration;
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} else {
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instance->decoder.parser_step = Honeywell_WDBDecoderStepReset;
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}
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break;
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case Honeywell_WDBDecoderStepCheckDuration:
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if(!level) {
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if((DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_honeywell_wdb_const.te_short) <
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subghz_protocol_honeywell_wdb_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_honeywell_wdb_const.te_long) <
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subghz_protocol_honeywell_wdb_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = Honeywell_WDBDecoderStepSaveDuration;
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} else if(
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(DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_honeywell_wdb_const.te_long) <
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subghz_protocol_honeywell_wdb_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_honeywell_wdb_const.te_short) <
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subghz_protocol_honeywell_wdb_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = Honeywell_WDBDecoderStepSaveDuration;
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} else
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instance->decoder.parser_step = Honeywell_WDBDecoderStepReset;
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} else {
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instance->decoder.parser_step = Honeywell_WDBDecoderStepReset;
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}
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break;
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}
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}
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/**
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* Analysis of received data
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* @param instance Pointer to a SubGhzProtocolDecoderHoneywell_WDB* instance
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*/
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static void subghz_protocol_honeywell_wdb_check_remote_controller(
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SubGhzProtocolDecoderHoneywell_WDB* instance) {
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/*
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*
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* Frame bits used in Honeywell RCWL300A, RCWL330A, Series 3, 5, 9 and all Decor Series Wireless Chimes
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* 0000 0000 1111 1111 2222 2222 3333 3333 4444 4444 5555 5555
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* 7654 3210 7654 3210 7654 3210 7654 3210 7654 3210 7654 3210
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* XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XX.. XXX. .... KEY DATA (any change and receiver doesn't seem to recognize signal)
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* XXXX XXXX XXXX XXXX XXXX .... .... .... .... .... .... .... KEY ID (different for each transmitter)
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* .... .... .... .... .... 0000 00.. 0000 0000 00.. 000. .... KEY UNKNOWN 0 (always 0 in devices I've tested)
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* .... .... .... .... .... .... ..XX .... .... .... .... .... DEVICE TYPE (10 = doorbell, 01 = PIR Motion sensor)
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* .... .... .... .... .... .... .... .... .... ..XX ...X XXX. FLAG DATA (may be modified for possible effects on receiver)
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* .... .... .... .... .... .... .... .... .... ..XX .... .... ALERT (00 = normal, 01 or 10 = right-left halo light pattern, 11 = full volume alarm)
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* .... .... .... .... .... .... .... .... .... .... ...X .... SECRET KNOCK (0 = default, 1 if doorbell is pressed 3x rapidly)
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* .... .... .... .... .... .... .... .... .... .... .... X... RELAY (1 if signal is a retransmission of a received transmission, only some models)
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* .... .... .... .... .... .... .... .... .... .... .... .X.. FLAG UNKNOWN (0 = default, but 1 is accepted and I don't observe any effects)
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* .... .... .... .... .... .... .... .... .... .... .... ..X. LOWBAT (1 if battery is low, receiver gives low battery alert)
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* .... .... .... .... .... .... .... .... .... .... .... ...X PARITY (LSB of count of set bits in previous 47 bits)
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*
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*/
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instance->generic.serial = (instance->generic.data >> 28) & 0xFFFFF;
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switch((instance->generic.data >> 20) & 0x3) {
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case 0x02:
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instance->device_type = "Doorbell";
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break;
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case 0x01:
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instance->device_type = "PIR-Motion";
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break;
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default:
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instance->device_type = "Unknown";
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break;
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}
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switch((instance->generic.data >> 16) & 0x3) {
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case 0x00:
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instance->alert = "Normal";
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break;
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case 0x01:
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case 0x02:
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instance->alert = "High";
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break;
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case 0x03:
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instance->alert = "Full";
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break;
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default:
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instance->alert = "Unknown";
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break;
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}
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instance->secret_knock = (uint8_t)((instance->generic.data >> 4) & 0x1);
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instance->relay = (uint8_t)((instance->generic.data >> 3) & 0x1);
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instance->lowbat = (uint8_t)((instance->generic.data >> 1) & 0x1);
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}
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uint8_t subghz_protocol_decoder_honeywell_wdb_get_hash_data(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderHoneywell_WDB* instance = context;
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return subghz_protocol_blocks_get_hash_data(
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&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
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}
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bool subghz_protocol_decoder_honeywell_wdb_serialize(
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void* context,
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FlipperFormat* flipper_format,
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SubGhzPresetDefinition* preset) {
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furi_assert(context);
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SubGhzProtocolDecoderHoneywell_WDB* instance = context;
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return subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
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}
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bool subghz_protocol_decoder_honeywell_wdb_deserialize(
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void* context,
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FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolDecoderHoneywell_WDB* instance = context;
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bool ret = false;
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do {
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if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
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break;
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}
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if(instance->generic.data_count_bit !=
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subghz_protocol_honeywell_wdb_const.min_count_bit_for_found) {
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FURI_LOG_E(TAG, "Wrong number of bits in key");
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break;
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}
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ret = true;
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} while(false);
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return ret;
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}
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void subghz_protocol_decoder_honeywell_wdb_get_string(void* context, string_t output) {
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furi_assert(context);
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SubGhzProtocolDecoderHoneywell_WDB* instance = context;
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subghz_protocol_honeywell_wdb_check_remote_controller(instance);
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string_cat_printf(
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output,
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"%s %dbit\r\n"
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"Key:0x%lX%08lX\r\n"
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"Sn:0x%05lX\r\n"
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"DT:%s Al:%s\r\n"
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"SK:%01lX R:%01lX LBat:%01lX\r\n",
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instance->generic.protocol_name,
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instance->generic.data_count_bit,
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(uint32_t)((instance->generic.data >> 32) & 0xFFFFFFFF),
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(uint32_t)(instance->generic.data & 0xFFFFFFFF),
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instance->generic.serial,
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instance->device_type,
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instance->alert,
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instance->secret_knock,
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instance->relay,
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instance->lowbat);
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}
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