mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-29 00:09:19 +03:00
515 lines
18 KiB
C
515 lines
18 KiB
C
#include "magellan.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 "SubGhzProtocolMagellan"
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static const SubGhzBlockConst subghz_protocol_magellan_const = {
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.te_short = 200,
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.te_long = 400,
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.te_delta = 100,
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.min_count_bit_for_found = 32,
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};
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struct SubGhzProtocolDecoderMagellan {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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uint16_t header_count;
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};
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struct SubGhzProtocolEncoderMagellan {
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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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MagellanDecoderStepReset = 0,
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MagellanDecoderStepCheckPreambula,
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MagellanDecoderStepFoundPreambula,
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MagellanDecoderStepSaveDuration,
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MagellanDecoderStepCheckDuration,
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} MagellanDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_magellan_decoder = {
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.alloc = subghz_protocol_decoder_magellan_alloc,
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.free = subghz_protocol_decoder_magellan_free,
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.feed = subghz_protocol_decoder_magellan_feed,
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.reset = subghz_protocol_decoder_magellan_reset,
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.get_hash_data = subghz_protocol_decoder_magellan_get_hash_data,
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.serialize = subghz_protocol_decoder_magellan_serialize,
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.deserialize = subghz_protocol_decoder_magellan_deserialize,
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.get_string = subghz_protocol_decoder_magellan_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_magellan_encoder = {
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.alloc = subghz_protocol_encoder_magellan_alloc,
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.free = subghz_protocol_encoder_magellan_free,
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.deserialize = subghz_protocol_encoder_magellan_deserialize,
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.stop = subghz_protocol_encoder_magellan_stop,
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.yield = subghz_protocol_encoder_magellan_yield,
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};
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const SubGhzProtocol subghz_protocol_magellan = {
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.name = SUBGHZ_PROTOCOL_MAGELLAN_NAME,
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.type = SubGhzProtocolTypeStatic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
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SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send |
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SubGhzProtocolFlag_Magellan,
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.decoder = &subghz_protocol_magellan_decoder,
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.encoder = &subghz_protocol_magellan_encoder,
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};
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void* subghz_protocol_encoder_magellan_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolEncoderMagellan* instance = malloc(sizeof(SubGhzProtocolEncoderMagellan));
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instance->base.protocol = &subghz_protocol_magellan;
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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 = 256;
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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_magellan_free(void* context) {
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furi_assert(context);
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SubGhzProtocolEncoderMagellan* 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 SubGhzProtocolEncoderMagellan instance
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* @return true On success
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*/
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static bool subghz_protocol_encoder_magellan_get_upload(SubGhzProtocolEncoderMagellan* instance) {
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furi_assert(instance);
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size_t index = 0;
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//Send header
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_magellan_const.te_short * 4);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_magellan_const.te_short);
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for(uint8_t i = 0; i < 12; i++) {
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_magellan_const.te_short);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_magellan_const.te_short);
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}
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_magellan_const.te_short);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_magellan_const.te_long);
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//Send start bit
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_magellan_const.te_long * 3);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_magellan_const.te_long);
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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_magellan_const.te_short);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_magellan_const.te_long);
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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_magellan_const.te_long);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_magellan_const.te_short);
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}
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}
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//Send stop bit
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_magellan_const.te_short);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_magellan_const.te_long * 100);
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instance->encoder.size_upload = index;
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return true;
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}
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SubGhzProtocolStatus
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subghz_protocol_encoder_magellan_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolEncoderMagellan* instance = context;
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SubGhzProtocolStatus ret = SubGhzProtocolStatusError;
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do {
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ret = subghz_block_generic_deserialize_check_count_bit(
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&instance->generic,
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flipper_format,
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subghz_protocol_magellan_const.min_count_bit_for_found);
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if(ret != SubGhzProtocolStatusOk) {
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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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if(!subghz_protocol_encoder_magellan_get_upload(instance)) {
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ret = SubGhzProtocolStatusErrorEncoderGetUpload;
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break;
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}
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instance->encoder.is_running = true;
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} while(false);
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return ret;
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}
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void subghz_protocol_encoder_magellan_stop(void* context) {
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SubGhzProtocolEncoderMagellan* instance = context;
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instance->encoder.is_running = false;
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}
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LevelDuration subghz_protocol_encoder_magellan_yield(void* context) {
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SubGhzProtocolEncoderMagellan* 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_magellan_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolDecoderMagellan* instance = malloc(sizeof(SubGhzProtocolDecoderMagellan));
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instance->base.protocol = &subghz_protocol_magellan;
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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_magellan_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderMagellan* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_magellan_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderMagellan* instance = context;
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instance->decoder.parser_step = MagellanDecoderStepReset;
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}
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uint8_t subghz_protocol_magellan_crc8(uint8_t* data, size_t len) {
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uint8_t crc = 0x00;
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size_t i, j;
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for(i = 0; i < len; i++) {
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crc ^= data[i];
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for(j = 0; j < 8; j++) {
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if((crc & 0x80) != 0)
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crc = (uint8_t)((crc << 1) ^ 0x31);
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else
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crc <<= 1;
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}
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}
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return crc;
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}
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static bool subghz_protocol_magellan_check_crc(SubGhzProtocolDecoderMagellan* instance) {
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uint8_t data[3] = {
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instance->decoder.decode_data >> 24,
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instance->decoder.decode_data >> 16,
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instance->decoder.decode_data >> 8};
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return (instance->decoder.decode_data & 0xFF) ==
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subghz_protocol_magellan_crc8(data, sizeof(data));
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}
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void subghz_protocol_decoder_magellan_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderMagellan* instance = context;
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switch(instance->decoder.parser_step) {
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case MagellanDecoderStepReset:
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if((level) && (DURATION_DIFF(duration, subghz_protocol_magellan_const.te_short) <
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subghz_protocol_magellan_const.te_delta)) {
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instance->decoder.parser_step = MagellanDecoderStepCheckPreambula;
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instance->decoder.te_last = duration;
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instance->header_count = 0;
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}
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break;
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case MagellanDecoderStepCheckPreambula:
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if(level) {
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instance->decoder.te_last = duration;
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} else {
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if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_magellan_const.te_short) <
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subghz_protocol_magellan_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_magellan_const.te_short) <
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subghz_protocol_magellan_const.te_delta)) {
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// Found header
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instance->header_count++;
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} else if(
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(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_magellan_const.te_short) <
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subghz_protocol_magellan_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_magellan_const.te_long) <
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subghz_protocol_magellan_const.te_delta * 2) &&
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(instance->header_count > 10)) {
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instance->decoder.parser_step = MagellanDecoderStepFoundPreambula;
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} else {
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instance->decoder.parser_step = MagellanDecoderStepReset;
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}
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}
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break;
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case MagellanDecoderStepFoundPreambula:
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if(level) {
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instance->decoder.te_last = duration;
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} else {
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if((DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_magellan_const.te_short * 6) <
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subghz_protocol_magellan_const.te_delta * 3) &&
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(DURATION_DIFF(duration, subghz_protocol_magellan_const.te_long) <
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subghz_protocol_magellan_const.te_delta * 2)) {
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instance->decoder.parser_step = MagellanDecoderStepSaveDuration;
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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} else {
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instance->decoder.parser_step = MagellanDecoderStepReset;
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}
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}
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break;
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case MagellanDecoderStepSaveDuration:
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if(level) {
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = MagellanDecoderStepCheckDuration;
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} else {
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instance->decoder.parser_step = MagellanDecoderStepReset;
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}
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break;
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case MagellanDecoderStepCheckDuration:
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if(!level) {
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if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_magellan_const.te_short) <
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subghz_protocol_magellan_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_magellan_const.te_long) <
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subghz_protocol_magellan_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = MagellanDecoderStepSaveDuration;
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} else if(
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(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_magellan_const.te_long) <
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subghz_protocol_magellan_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_magellan_const.te_short) <
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subghz_protocol_magellan_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = MagellanDecoderStepSaveDuration;
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} else if(duration >= (subghz_protocol_magellan_const.te_long * 3)) {
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//Found stop bit
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if((instance->decoder.decode_count_bit ==
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subghz_protocol_magellan_const.min_count_bit_for_found) &&
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subghz_protocol_magellan_check_crc(instance)) {
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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.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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instance->decoder.parser_step = MagellanDecoderStepReset;
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} else {
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instance->decoder.parser_step = MagellanDecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = MagellanDecoderStepReset;
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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 SubGhzBlockGeneric* instance
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*/
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static void subghz_protocol_magellan_check_remote_controller(SubGhzBlockGeneric* instance) {
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/*
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* package 32b data 24b CRC8
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* 0x037AE4828 => 001101111010111001001000 00101000
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*
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* 0x037AE48 (flipped in reverse bit sequence) => 0x1275EC
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*
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* 0x1275EC => 0x12-event codes, 0x75EC-serial (dec 117236)
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*
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* Event codes consist of two parts:
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* - The upper nibble (bits 7-4) represents the event type:
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* - 0x00: Nothing
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* - 0x01: Door
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* - 0x02: Motion
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* - 0x03: Smoke Alarm
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* - 0x04: REM1
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* - 0x05: REM1 with subtype Off1
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* - 0x06: REM2
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* - 0x07: REM2 with subtype Off1
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* - Others: Unknown
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* - The lower nibble (bits 3-0) represents the event subtype, which varies based on the model type:
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* - If the model type is greater than 0x03 (e.g., REM1 or REM2):
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* - 0x00: Arm1
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* - 0x01: Btn1
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* - 0x02: Btn2
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* - 0x03: Btn3
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* - 0x08: Reset
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* - 0x09: LowBatt
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* - 0x0A: BattOk
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* - 0x0B: Learn
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* - Others: Unknown
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* - Otherwise:
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* - 0x00: Sealed
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* - 0x01: Alarm
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* - 0x02: Tamper
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* - 0x03: Alarm + Tamper
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* - 0x08: Reset
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* - 0x09: LowBatt
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* - 0x0A: BattOk
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* - 0x0B: Learn
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* - Others: Unknown
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*
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*/
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uint64_t data_rev = subghz_protocol_blocks_reverse_key(instance->data >> 8, 24);
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instance->serial = data_rev & 0xFFFF;
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instance->btn = (data_rev >> 16) & 0xFF;
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}
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static void subghz_protocol_magellan_get_event_serialize(uint8_t event, FuriString* output) {
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const char* event_type;
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const char* event_subtype;
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switch((event >> 4) & 0x0F) {
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case 0x00:
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event_type = "Nothing";
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break;
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case 0x01:
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event_type = "Door";
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break;
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case 0x02:
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event_type = "Motion";
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break;
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case 0x03:
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event_type = "Smoke Alarm";
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break;
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case 0x04:
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event_type = "REM1";
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break;
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case 0x05:
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event_type = "REM1";
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event_subtype = "Off1";
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furi_string_cat_printf(output, "%s - %s", event_type, event_subtype);
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return;
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case 0x06:
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event_type = "REM2";
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event_subtype = "Off1";
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furi_string_cat_printf(output, "%s - %s", event_type, event_subtype);
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return;
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default:
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event_type = "Unknown";
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break;
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}
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switch(event & 0x0F) {
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case 0x00:
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event_subtype = (((event >> 4) & 0x0F) > 0x03) ? "Arm1" : "Sealed";
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break;
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case 0x01:
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event_subtype = (((event >> 4) & 0x0F) > 0x03) ? "Btn1" : "Alarm";
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break;
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case 0x02:
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event_subtype = (((event >> 4) & 0x0F) > 0x03) ? "Btn2" : "Tamper";
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break;
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case 0x03:
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event_subtype = (((event >> 4) & 0x0F) > 0x03) ? "Btn3" : "Alarm + Tamper";
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break;
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case 0x08:
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event_subtype = "Reset";
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break;
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case 0x09:
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event_subtype = "LowBatt";
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break;
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case 0x0A:
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event_subtype = "BattOk";
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break;
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case 0x0B:
|
|
event_subtype = "Learn";
|
|
break;
|
|
default:
|
|
event_subtype = "Unknown";
|
|
break;
|
|
}
|
|
|
|
furi_string_cat_printf(output, "%s - %s", event_type, event_subtype);
|
|
}
|
|
|
|
uint8_t subghz_protocol_decoder_magellan_get_hash_data(void* context) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderMagellan* instance = context;
|
|
return subghz_protocol_blocks_get_hash_data(
|
|
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
|
|
}
|
|
|
|
SubGhzProtocolStatus subghz_protocol_decoder_magellan_serialize(
|
|
void* context,
|
|
FlipperFormat* flipper_format,
|
|
SubGhzRadioPreset* preset) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderMagellan* instance = context;
|
|
return subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
|
|
}
|
|
|
|
SubGhzProtocolStatus
|
|
subghz_protocol_decoder_magellan_deserialize(void* context, FlipperFormat* flipper_format) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderMagellan* instance = context;
|
|
return subghz_block_generic_deserialize_check_count_bit(
|
|
&instance->generic,
|
|
flipper_format,
|
|
subghz_protocol_magellan_const.min_count_bit_for_found);
|
|
}
|
|
|
|
void subghz_protocol_decoder_magellan_get_string(void* context, FuriString* output) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderMagellan* instance = context;
|
|
subghz_protocol_magellan_check_remote_controller(&instance->generic);
|
|
furi_string_cat_printf(
|
|
output,
|
|
"%s %dbit\r\n"
|
|
"Key:0x%08lX\r\n"
|
|
"Sn:%03ld%03ld, Event:0x%02X\r\n"
|
|
"Stat:",
|
|
instance->generic.protocol_name,
|
|
instance->generic.data_count_bit,
|
|
(uint32_t)(instance->generic.data & 0xFFFFFFFF),
|
|
(instance->generic.serial >> 8) & 0xFF,
|
|
instance->generic.serial & 0xFF,
|
|
instance->generic.btn);
|
|
|
|
subghz_protocol_magellan_get_event_serialize(instance->generic.btn, output);
|
|
}
|