SubGhz: add protocol "Linear Delta-3" (#2239)
* SubGhz: add protocol "Linear Delta-3" * SubGhz: fix Leniar Delta 3 * BadUSB: mask pvs studio warning for valid code Co-authored-by: SkorP <skorpionm@yandex.ru> Co-authored-by: あく <alleteam@gmail.com> Co-authored-by: Skorpionm <85568270+Skorpionm@users.noreply.github.com>
This commit is contained in:
Brandon Weeks
GitHub
359
lib/subghz/protocols/linear_delta3.c
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359
lib/subghz/protocols/linear_delta3.c
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#include "linear_delta3.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 "SubGhzProtocolLinearDelta3"
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#define DIP_PATTERN "%c%c%c%c%c%c%c%c"
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#define DATA_TO_DIP(dip) \
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(dip & 0x0080 ? '1' : '0'), (dip & 0x0040 ? '1' : '0'), (dip & 0x0020 ? '1' : '0'), \
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(dip & 0x0010 ? '1' : '0'), (dip & 0x0008 ? '1' : '0'), (dip & 0x0004 ? '1' : '0'), \
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(dip & 0x0002 ? '1' : '0'), (dip & 0x0001 ? '1' : '0')
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static const SubGhzBlockConst subghz_protocol_linear_delta3_const = {
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.te_short = 500,
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.te_long = 2000,
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.te_delta = 150,
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.min_count_bit_for_found = 8,
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};
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struct SubGhzProtocolDecoderLinearDelta3 {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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uint32_t last_data;
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};
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struct SubGhzProtocolEncoderLinearDelta3 {
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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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LinearDecoderStepReset = 0,
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LinearDecoderStepSaveDuration,
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LinearDecoderStepCheckDuration,
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} LinearDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_linear_delta3_decoder = {
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.alloc = subghz_protocol_decoder_linear_delta3_alloc,
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.free = subghz_protocol_decoder_linear_delta3_free,
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.feed = subghz_protocol_decoder_linear_delta3_feed,
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.reset = subghz_protocol_decoder_linear_delta3_reset,
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.get_hash_data = subghz_protocol_decoder_linear_delta3_get_hash_data,
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.serialize = subghz_protocol_decoder_linear_delta3_serialize,
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.deserialize = subghz_protocol_decoder_linear_delta3_deserialize,
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.get_string = subghz_protocol_decoder_linear_delta3_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_linear_delta3_encoder = {
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.alloc = subghz_protocol_encoder_linear_delta3_alloc,
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.free = subghz_protocol_encoder_linear_delta3_free,
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.deserialize = subghz_protocol_encoder_linear_delta3_deserialize,
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.stop = subghz_protocol_encoder_linear_delta3_stop,
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.yield = subghz_protocol_encoder_linear_delta3_yield,
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};
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const SubGhzProtocol subghz_protocol_linear_delta3 = {
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.name = SUBGHZ_PROTOCOL_LINEAR_DELTA3_NAME,
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.type = SubGhzProtocolTypeStatic,
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.flag = SubGhzProtocolFlag_315 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
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SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send,
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.decoder = &subghz_protocol_linear_delta3_decoder,
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.encoder = &subghz_protocol_linear_delta3_encoder,
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};
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void* subghz_protocol_encoder_linear_delta3_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolEncoderLinearDelta3* instance =
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malloc(sizeof(SubGhzProtocolEncoderLinearDelta3));
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instance->base.protocol = &subghz_protocol_linear_delta3;
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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 = 16;
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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_linear_delta3_free(void* context) {
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furi_assert(context);
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SubGhzProtocolEncoderLinearDelta3* 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 SubGhzProtocolEncoderLinearDelta3 instance
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* @return true On success
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*/
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static bool
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subghz_protocol_encoder_linear_delta3_get_upload(SubGhzProtocolEncoderLinearDelta3* 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);
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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 key data
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for(uint8_t i = instance->generic.data_count_bit; i > 1; 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_linear_delta3_const.te_short);
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instance->encoder.upload[index++] = level_duration_make(
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false, (uint32_t)subghz_protocol_linear_delta3_const.te_short * 7);
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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_linear_delta3_const.te_long);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_linear_delta3_const.te_long);
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}
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}
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//Send end bit
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if(bit_read(instance->generic.data, 0)) {
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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_linear_delta3_const.te_short);
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//Send PT_GUARD
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instance->encoder.upload[index] = level_duration_make(
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false, (uint32_t)subghz_protocol_linear_delta3_const.te_short * 73);
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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_linear_delta3_const.te_long);
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//Send PT_GUARD
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instance->encoder.upload[index] = level_duration_make(
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false, (uint32_t)subghz_protocol_linear_delta3_const.te_short * 70);
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}
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return true;
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}
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bool subghz_protocol_encoder_linear_delta3_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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SubGhzProtocolEncoderLinearDelta3* 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_linear_delta3_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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if(!subghz_protocol_encoder_linear_delta3_get_upload(instance)) break;
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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_linear_delta3_stop(void* context) {
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SubGhzProtocolEncoderLinearDelta3* instance = context;
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instance->encoder.is_running = false;
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}
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LevelDuration subghz_protocol_encoder_linear_delta3_yield(void* context) {
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SubGhzProtocolEncoderLinearDelta3* 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_linear_delta3_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolDecoderLinearDelta3* instance =
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malloc(sizeof(SubGhzProtocolDecoderLinearDelta3));
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instance->base.protocol = &subghz_protocol_linear_delta3;
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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_linear_delta3_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderLinearDelta3* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_linear_delta3_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderLinearDelta3* instance = context;
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instance->decoder.parser_step = LinearDecoderStepReset;
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instance->last_data = 0;
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}
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void subghz_protocol_decoder_linear_delta3_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderLinearDelta3* instance = context;
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switch(instance->decoder.parser_step) {
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case LinearDecoderStepReset:
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if((!level) &&
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(DURATION_DIFF(duration, subghz_protocol_linear_delta3_const.te_short * 70) <
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subghz_protocol_linear_delta3_const.te_delta * 24)) {
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//Found header Linear
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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 = LinearDecoderStepSaveDuration;
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}
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break;
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case LinearDecoderStepSaveDuration:
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if(level) {
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = LinearDecoderStepCheckDuration;
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} else {
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instance->decoder.parser_step = LinearDecoderStepReset;
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}
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break;
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case LinearDecoderStepCheckDuration:
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if(!level) {
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if(duration >= (subghz_protocol_linear_delta3_const.te_short * 10)) {
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instance->decoder.parser_step = LinearDecoderStepReset;
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if(DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_linear_delta3_const.te_short) <
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subghz_protocol_linear_delta3_const.te_delta) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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} else if(
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DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_linear_delta3_const.te_long) <
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subghz_protocol_linear_delta3_const.te_delta) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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}
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if(instance->decoder.decode_count_bit ==
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subghz_protocol_linear_delta3_const.min_count_bit_for_found) {
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if((instance->last_data == instance->decoder.decode_data) &&
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instance->last_data) {
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instance->generic.serial = 0x0;
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instance->generic.btn = 0x0;
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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 = LinearDecoderStepSaveDuration;
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instance->last_data = instance->decoder.decode_data;
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}
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break;
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}
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if((DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_linear_delta3_const.te_short) <
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subghz_protocol_linear_delta3_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_linear_delta3_const.te_short * 7) <
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subghz_protocol_linear_delta3_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = LinearDecoderStepSaveDuration;
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} else if(
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(DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_linear_delta3_const.te_long) <
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subghz_protocol_linear_delta3_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_linear_delta3_const.te_long) <
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subghz_protocol_linear_delta3_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = LinearDecoderStepSaveDuration;
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} else {
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instance->decoder.parser_step = LinearDecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = LinearDecoderStepReset;
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}
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break;
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}
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}
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uint8_t subghz_protocol_decoder_linear_delta3_get_hash_data(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderLinearDelta3* 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));
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}
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bool subghz_protocol_decoder_linear_delta3_serialize(
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void* context,
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FlipperFormat* flipper_format,
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SubGhzRadioPreset* preset) {
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furi_assert(context);
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SubGhzProtocolDecoderLinearDelta3* 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_linear_delta3_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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SubGhzProtocolDecoderLinearDelta3* 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_linear_delta3_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_linear_delta3_get_string(void* context, FuriString* output) {
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furi_assert(context);
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SubGhzProtocolDecoderLinearDelta3* instance = context;
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uint32_t data = instance->generic.data & 0xFF;
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furi_string_cat_printf(
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output,
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"%s %dbit\r\n"
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"Key:0x%lX\r\n"
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"DIP:" DIP_PATTERN "\r\n",
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instance->generic.protocol_name,
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instance->generic.data_count_bit,
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data,
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DATA_TO_DIP(data));
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}
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