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unleashed-firmware/lib/subghz/protocols/secplus_v1.c
Eng1n33r 22cbe276a8 big merge with fz main repo
2022-06-01 16:07:53 +03:00

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#include "secplus_v1.h"
#include "../blocks/const.h"
#include "../blocks/decoder.h"
#include "../blocks/encoder.h"
#include "../blocks/generic.h"
#include "../blocks/math.h"
/*
* Help
* https://github.com/argilo/secplus
* https://github.com/merbanan/rtl_433/blob/master/src/devices/secplus_v1.c
*/
#define TAG "SubGhzProtocoSecPlus_v1"
#define SECPLUS_V1_BIT_ERR -1 //0b0000
#define SECPLUS_V1_BIT_0 0 //0b0001
#define SECPLUS_V1_BIT_1 1 //0b0011
#define SECPLUS_V1_BIT_2 2 //0b0111
#define SECPLUS_V1_PACKET_1_HEADER 0x00
#define SECPLUS_V1_PACKET_2_HEADER 0x02
#define SECPLUS_V1_PACKET_1_INDEX_BASE 0
#define SECPLUS_V1_PACKET_2_INDEX_BASE 21
#define SECPLUS_V1_PACKET_1_ACCEPTED (1 << 0)
#define SECPLUS_V1_PACKET_2_ACCEPTED (1 << 1)
static const SubGhzBlockConst subghz_protocol_secplus_v1_const = {
.te_short = 500,
.te_long = 1500,
.te_delta = 100,
.min_count_bit_for_found = 21,
};
struct SubGhzProtocolDecoderSecPlus_v1 {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
SubGhzBlockGeneric generic;
uint8_t packet_accepted;
uint8_t base_packet_index;
uint8_t data_array[44];
};
struct SubGhzProtocolEncoderSecPlus_v1 {
SubGhzProtocolEncoderBase base;
SubGhzProtocolBlockEncoder encoder;
SubGhzBlockGeneric generic;
uint8_t data_array[44];
};
typedef enum {
SecPlus_v1DecoderStepReset = 0,
SecPlus_v1DecoderStepSearchStartBit,
SecPlus_v1DecoderStepSaveDuration,
SecPlus_v1DecoderStepDecoderData,
} SecPlus_v1DecoderStep;
const SubGhzProtocolDecoder subghz_protocol_secplus_v1_decoder = {
.alloc = subghz_protocol_decoder_secplus_v1_alloc,
.free = subghz_protocol_decoder_secplus_v1_free,
.feed = subghz_protocol_decoder_secplus_v1_feed,
.reset = subghz_protocol_decoder_secplus_v1_reset,
.get_hash_data = subghz_protocol_decoder_secplus_v1_get_hash_data,
.serialize = subghz_protocol_decoder_secplus_v1_serialize,
.deserialize = subghz_protocol_decoder_secplus_v1_deserialize,
.get_string = subghz_protocol_decoder_secplus_v1_get_string,
};
const SubGhzProtocolEncoder subghz_protocol_secplus_v1_encoder = {
.alloc = subghz_protocol_encoder_secplus_v1_alloc,
.free = subghz_protocol_encoder_secplus_v1_free,
.deserialize = subghz_protocol_encoder_secplus_v1_deserialize,
.stop = subghz_protocol_encoder_secplus_v1_stop,
.yield = subghz_protocol_encoder_secplus_v1_yield,
};
const SubGhzProtocol subghz_protocol_secplus_v1 = {
.name = SUBGHZ_PROTOCOL_SECPLUS_V1_NAME,
.type = SubGhzProtocolTypeDynamic,
.flag = SubGhzProtocolFlag_315 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Send | SubGhzProtocolFlag_Save,
.decoder = &subghz_protocol_secplus_v1_decoder,
.encoder = &subghz_protocol_secplus_v1_encoder,
};
void* subghz_protocol_encoder_secplus_v1_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
SubGhzProtocolEncoderSecPlus_v1* instance = malloc(sizeof(SubGhzProtocolEncoderSecPlus_v1));
instance->base.protocol = &subghz_protocol_secplus_v1;
instance->generic.protocol_name = instance->base.protocol->name;
instance->encoder.repeat = 10;
instance->encoder.size_upload = 128;
instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration));
instance->encoder.is_runing = false;
return instance;
}
void subghz_protocol_encoder_secplus_v1_free(void* context) {
furi_assert(context);
SubGhzProtocolEncoderSecPlus_v1* instance = context;
free(instance->encoder.upload);
free(instance);
}
/**
* Generating an upload from data.
* @param instance Pointer to a SubGhzProtocolEncoderSecPlus_v1 instance
* @return true On success
*/
static bool
subghz_protocol_encoder_secplus_v1_get_upload(SubGhzProtocolEncoderSecPlus_v1* instance) {
furi_assert(instance);
size_t index = 0;
size_t size_upload = (instance->generic.data_count_bit * 2);
if(size_upload > instance->encoder.size_upload) {
FURI_LOG_E(TAG, "Encoder size upload exceeds allocated encoder buffer.");
return false;
} else {
instance->encoder.size_upload = size_upload;
}
//Send header packet 1
instance->encoder.upload[index++] = level_duration_make(
false, (uint32_t)subghz_protocol_secplus_v1_const.te_short * (116 + 3));
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short);
//Send data packet 1
for(uint8_t i = SECPLUS_V1_PACKET_1_INDEX_BASE + 1; i < SECPLUS_V1_PACKET_1_INDEX_BASE + 21;
i++) {
switch(instance->data_array[i]) {
case SECPLUS_V1_BIT_0:
instance->encoder.upload[index++] = level_duration_make(
false, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 3);
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short);
break;
case SECPLUS_V1_BIT_1:
instance->encoder.upload[index++] = level_duration_make(
false, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 2);
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 2);
break;
case SECPLUS_V1_BIT_2:
instance->encoder.upload[index++] =
level_duration_make(false, (uint32_t)subghz_protocol_secplus_v1_const.te_short);
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 3);
break;
default:
FURI_LOG_E(TAG, "Encoder error, wrong bit type");
return false;
break;
}
}
//Send header packet 2
instance->encoder.upload[index++] =
level_duration_make(false, (uint32_t)subghz_protocol_secplus_v1_const.te_short * (116));
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 3);
//Send data packet 2
for(uint8_t i = SECPLUS_V1_PACKET_2_INDEX_BASE + 1; i < SECPLUS_V1_PACKET_2_INDEX_BASE + 21;
i++) {
switch(instance->data_array[i]) {
case SECPLUS_V1_BIT_0:
instance->encoder.upload[index++] = level_duration_make(
false, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 3);
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short);
break;
case SECPLUS_V1_BIT_1:
instance->encoder.upload[index++] = level_duration_make(
false, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 2);
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 2);
break;
case SECPLUS_V1_BIT_2:
instance->encoder.upload[index++] =
level_duration_make(false, (uint32_t)subghz_protocol_secplus_v1_const.te_short);
instance->encoder.upload[index++] =
level_duration_make(true, (uint32_t)subghz_protocol_secplus_v1_const.te_short * 3);
break;
default:
FURI_LOG_E(TAG, "Encoder error, wrong bit type.");
return false;
break;
}
}
return true;
}
/**
* Security+ 1.0 message encoding
* @param instance SubGhzProtocolEncoderSecPlus_v1*
*/
static bool subghz_protocol_secplus_v1_encode(SubGhzProtocolEncoderSecPlus_v1* instance) {
uint32_t fixed = (instance->generic.data >> 32) & 0xFFFFFFFF;
uint32_t rolling = instance->generic.data & 0xFFFFFFFF;
uint8_t rolling_array[20] = {0};
uint8_t fixed_array[20] = {0};
uint32_t acc = 0;
//increment the counter
rolling += 2;
//update data
instance->generic.data &= 0xFFFFFFFF00000000;
instance->generic.data |= rolling;
if(rolling > 0xFFFFFFFF) {
rolling = 0xE6000000;
}
if(fixed > 0xCFD41B90) {
FURI_LOG_E("TAG", "Encode wrong fixed data");
return false;
}
rolling = subghz_protocol_blocks_reverse_key(rolling, 32);
for(int i = 19; i > -1; i--) {
rolling_array[i] = rolling % 3;
rolling /= 3;
fixed_array[i] = fixed % 3;
fixed /= 3;
}
instance->data_array[SECPLUS_V1_PACKET_1_INDEX_BASE] = SECPLUS_V1_PACKET_1_HEADER;
instance->data_array[SECPLUS_V1_PACKET_2_INDEX_BASE] = SECPLUS_V1_PACKET_2_HEADER;
//encode packet 1
for(uint8_t i = 1; i < 11; i++) {
acc += rolling_array[i - 1];
instance->data_array[i * 2 - 1] = rolling_array[i - 1];
acc += fixed_array[i - 1];
instance->data_array[i * 2] = acc % 3;
}
acc = 0;
//encode packet 2
for(uint8_t i = 11; i < 21; i++) {
acc += rolling_array[i - 1];
instance->data_array[i * 2] = rolling_array[i - 1];
acc += fixed_array[i - 1];
instance->data_array[i * 2 + 1] = acc % 3;
}
return true;
}
bool subghz_protocol_encoder_secplus_v1_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
SubGhzProtocolEncoderSecPlus_v1* instance = context;
bool res = false;
do {
if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
FURI_LOG_E(TAG, "Deserialize error");
break;
}
//optional parameter parameter
flipper_format_read_uint32(
flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1);
if(!subghz_protocol_secplus_v1_encode(instance)) {
break;
}
if(!subghz_protocol_encoder_secplus_v1_get_upload(instance)) {
break;
}
uint8_t key_data[sizeof(uint64_t)] = {0};
for(size_t i = 0; i < sizeof(uint64_t); i++) {
key_data[sizeof(uint64_t) - i - 1] = (instance->generic.data >> i * 8) & 0xFF;
}
if(!flipper_format_update_hex(flipper_format, "Key", key_data, sizeof(uint64_t))) {
FURI_LOG_E(TAG, "Unable to add Key");
break;
}
instance->encoder.is_runing = true;
res = true;
} while(false);
return res;
}
void subghz_protocol_encoder_secplus_v1_stop(void* context) {
SubGhzProtocolEncoderSecPlus_v1* instance = context;
instance->encoder.is_runing = false;
}
LevelDuration subghz_protocol_encoder_secplus_v1_yield(void* context) {
SubGhzProtocolEncoderSecPlus_v1* instance = context;
if(instance->encoder.repeat == 0 || !instance->encoder.is_runing) {
instance->encoder.is_runing = false;
return level_duration_reset();
}
LevelDuration ret = instance->encoder.upload[instance->encoder.front];
if(++instance->encoder.front == instance->encoder.size_upload) {
instance->encoder.repeat--;
instance->encoder.front = 0;
}
return ret;
}
void* subghz_protocol_decoder_secplus_v1_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
SubGhzProtocolDecoderSecPlus_v1* instance = malloc(sizeof(SubGhzProtocolDecoderSecPlus_v1));
instance->base.protocol = &subghz_protocol_secplus_v1;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void subghz_protocol_decoder_secplus_v1_free(void* context) {
furi_assert(context);
SubGhzProtocolDecoderSecPlus_v1* instance = context;
free(instance);
}
void subghz_protocol_decoder_secplus_v1_reset(void* context) {
furi_assert(context);
// SubGhzProtocolDecoderSecPlus_v1* instance = context;
// does not reset the decoder because you need to get 2 parts of the package
}
/**
* Security+ 1.0 message decoding
* @param instance SubGhzProtocolDecoderSecPlus_v1*
*/
static void subghz_protocol_secplus_v1_decode(SubGhzProtocolDecoderSecPlus_v1* instance) {
uint32_t rolling = 0;
uint32_t fixed = 0;
uint32_t acc = 0;
uint8_t digit = 0;
//decode packet 1
for(uint8_t i = 1; i < 21; i += 2) {
digit = instance->data_array[i];
rolling = (rolling * 3) + digit;
acc += digit;
digit = (60 + instance->data_array[i + 1] - acc) % 3;
fixed = (fixed * 3) + digit;
acc += digit;
}
acc = 0;
//decode packet 2
for(uint8_t i = 22; i < 42; i += 2) {
digit = instance->data_array[i];
rolling = (rolling * 3) + digit;
acc += digit;
digit = (60 + instance->data_array[i + 1] - acc) % 3;
fixed = (fixed * 3) + digit;
acc += digit;
}
rolling = subghz_protocol_blocks_reverse_key(rolling, 32);
instance->generic.data = (uint64_t)fixed << 32 | rolling;
instance->generic.data_count_bit =
subghz_protocol_secplus_v1_const.min_count_bit_for_found * 2;
}
void subghz_protocol_decoder_secplus_v1_feed(void* context, bool level, uint32_t duration) {
furi_assert(context);
SubGhzProtocolDecoderSecPlus_v1* instance = context;
switch(instance->decoder.parser_step) {
case SecPlus_v1DecoderStepReset:
if((!level) && (DURATION_DIFF(duration, subghz_protocol_secplus_v1_const.te_short * 120) <
subghz_protocol_secplus_v1_const.te_delta * 120)) {
//Found header Security+ 1.0
instance->decoder.parser_step = SecPlus_v1DecoderStepSearchStartBit;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
instance->packet_accepted = 0;
memset(instance->data_array, 0, sizeof(instance->data_array));
}
break;
case SecPlus_v1DecoderStepSearchStartBit:
if(level) {
if(DURATION_DIFF(duration, subghz_protocol_secplus_v1_const.te_short) <
subghz_protocol_secplus_v1_const.te_delta) {
instance->base_packet_index = SECPLUS_V1_PACKET_1_INDEX_BASE;
instance
->data_array[instance->decoder.decode_count_bit + instance->base_packet_index] =
SECPLUS_V1_BIT_0;
instance->decoder.decode_count_bit++;
instance->decoder.parser_step = SecPlus_v1DecoderStepSaveDuration;
} else if(
DURATION_DIFF(duration, subghz_protocol_secplus_v1_const.te_long) <
subghz_protocol_secplus_v1_const.te_delta) {
instance->base_packet_index = SECPLUS_V1_PACKET_2_INDEX_BASE;
instance
->data_array[instance->decoder.decode_count_bit + instance->base_packet_index] =
SECPLUS_V1_BIT_2;
instance->decoder.decode_count_bit++;
instance->decoder.parser_step = SecPlus_v1DecoderStepSaveDuration;
} else {
instance->decoder.parser_step = SecPlus_v1DecoderStepReset;
}
} else {
instance->decoder.parser_step = SecPlus_v1DecoderStepReset;
}
break;
case SecPlus_v1DecoderStepSaveDuration:
if(!level) { //save interval
if(DURATION_DIFF(duration, subghz_protocol_secplus_v1_const.te_short * 120) <
subghz_protocol_secplus_v1_const.te_delta * 120) {
if(instance->decoder.decode_count_bit ==
subghz_protocol_secplus_v1_const.min_count_bit_for_found) {
if(instance->base_packet_index == SECPLUS_V1_PACKET_1_INDEX_BASE)
instance->packet_accepted |= SECPLUS_V1_PACKET_1_ACCEPTED;
if(instance->base_packet_index == SECPLUS_V1_PACKET_2_INDEX_BASE)
instance->packet_accepted |= SECPLUS_V1_PACKET_2_ACCEPTED;
if(instance->packet_accepted ==
(SECPLUS_V1_PACKET_1_ACCEPTED | SECPLUS_V1_PACKET_2_ACCEPTED)) {
subghz_protocol_secplus_v1_decode(instance);
if(instance->base.callback)
instance->base.callback(&instance->base, instance->base.context);
instance->decoder.parser_step = SecPlus_v1DecoderStepReset;
}
}
instance->decoder.parser_step = SecPlus_v1DecoderStepSearchStartBit;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
} else {
instance->decoder.te_last = duration;
instance->decoder.parser_step = SecPlus_v1DecoderStepDecoderData;
}
} else {
instance->decoder.parser_step = SecPlus_v1DecoderStepReset;
}
break;
case SecPlus_v1DecoderStepDecoderData:
if(level && (instance->decoder.decode_count_bit <=
subghz_protocol_secplus_v1_const.min_count_bit_for_found)) {
if((DURATION_DIFF(
instance->decoder.te_last, subghz_protocol_secplus_v1_const.te_short * 3) <
subghz_protocol_secplus_v1_const.te_delta * 3) &&
(DURATION_DIFF(duration, subghz_protocol_secplus_v1_const.te_short) <
subghz_protocol_secplus_v1_const.te_delta)) {
instance
->data_array[instance->decoder.decode_count_bit + instance->base_packet_index] =
SECPLUS_V1_BIT_0;
instance->decoder.decode_count_bit++;
instance->decoder.parser_step = SecPlus_v1DecoderStepSaveDuration;
} else if(
(DURATION_DIFF(
instance->decoder.te_last, subghz_protocol_secplus_v1_const.te_short * 2) <
subghz_protocol_secplus_v1_const.te_delta * 2) &&
(DURATION_DIFF(duration, subghz_protocol_secplus_v1_const.te_short * 2) <
subghz_protocol_secplus_v1_const.te_delta * 2)) {
instance
->data_array[instance->decoder.decode_count_bit + instance->base_packet_index] =
SECPLUS_V1_BIT_1;
instance->decoder.decode_count_bit++;
instance->decoder.parser_step = SecPlus_v1DecoderStepSaveDuration;
} else if(
(DURATION_DIFF(
instance->decoder.te_last, subghz_protocol_secplus_v1_const.te_short) <
subghz_protocol_secplus_v1_const.te_delta) &&
(DURATION_DIFF(duration, subghz_protocol_secplus_v1_const.te_short * 3) <
subghz_protocol_secplus_v1_const.te_delta * 3)) {
instance
->data_array[instance->decoder.decode_count_bit + instance->base_packet_index] =
SECPLUS_V1_BIT_2;
instance->decoder.decode_count_bit++;
instance->decoder.parser_step = SecPlus_v1DecoderStepSaveDuration;
} else {
instance->decoder.parser_step = SecPlus_v1DecoderStepReset;
}
} else {
instance->decoder.parser_step = SecPlus_v1DecoderStepReset;
}
break;
}
}
uint8_t subghz_protocol_decoder_secplus_v1_get_hash_data(void* context) {
furi_assert(context);
SubGhzProtocolDecoderSecPlus_v1* instance = context;
return subghz_protocol_blocks_get_hash_data(
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
}
bool subghz_protocol_decoder_secplus_v1_serialize(
void* context,
FlipperFormat* flipper_format,
uint32_t frequency,
FuriHalSubGhzPreset preset) {
furi_assert(context);
SubGhzProtocolDecoderSecPlus_v1* instance = context;
return subghz_block_generic_serialize(&instance->generic, flipper_format, frequency, preset);
}
bool subghz_protocol_decoder_secplus_v1_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
SubGhzProtocolDecoderSecPlus_v1* instance = context;
return subghz_block_generic_deserialize(&instance->generic, flipper_format);
}
bool subghz_protocol_secplus_v1_check_fixed(uint32_t fixed) {
//uint8_t id0 = (fixed / 3) % 3;
uint8_t id1 = (fixed / 9) % 3;
uint8_t btn = fixed % 3;
do {
if(id1 == 0) return false;
if(!(btn == 0 || btn == 1 || btn == 2)) return false;
} while(false);
return true;
}
void subghz_protocol_decoder_secplus_v1_get_string(void* context, string_t output) {
furi_assert(context);
SubGhzProtocolDecoderSecPlus_v1* instance = context;
uint32_t fixed = (instance->generic.data >> 32) & 0xFFFFFFFF;
instance->generic.cnt = instance->generic.data & 0xFFFFFFFF;
instance->generic.btn = fixed % 3;
uint8_t id0 = (fixed / 3) % 3;
uint8_t id1 = (fixed / 9) % 3;
uint16_t pin = 0;
string_cat_printf(
output,
"%s %db\r\n"
"Key:0x%lX%08lX\r\n"
"id1:%d id0:%d",
instance->generic.protocol_name,
instance->generic.data_count_bit,
(uint32_t)(instance->generic.data >> 32),
(uint32_t)instance->generic.data,
id1,
id0);
if(id1 == 0) {
// (fixed // 3**3) % (3**7) 3^3=27 3^73=72187
instance->generic.serial = (fixed / 27) % 2187;
// pin = (fixed // 3**10) % (3**9) 3^10=59049 3^9=19683
pin = (fixed / 59049) % 19683;
if(pin <= 9999) {
string_cat_printf(output, " pin:%d", pin);
} else if(10000 <= pin && pin <= 11029) {
string_cat_printf(output, " pin:enter");
}
int pin_suffix = 0;
// pin_suffix = (fixed // 3**19) % 3 3^19=1162261467
pin_suffix = (fixed / 1162261467) % 3;
if(pin_suffix == 1) {
string_cat_printf(output, " #\r\n");
} else if(pin_suffix == 2) {
string_cat_printf(output, " *\r\n");
} else {
string_cat_printf(output, "\r\n");
}
string_cat_printf(
output,
"Sn:0x%08lX\r\n"
"Cnt:0x%03X\r\n"
"Sw_id:0x%X\r\n",
instance->generic.serial,
instance->generic.cnt,
instance->generic.btn);
} else {
//id = fixed / 27;
instance->generic.serial = fixed / 27;
if(instance->generic.btn == 1) {
string_cat_printf(output, " Btn:left\r\n");
} else if(instance->generic.btn == 0) {
string_cat_printf(output, " Btn:middle\r\n");
} else if(instance->generic.btn == 2) {
string_cat_printf(output, " Btn:right\r\n");
}
string_cat_printf(
output,
"Sn:0x%08lX\r\n"
"Cnt:0x%03X\r\n"
"Sw_id:0x%X\r\n",
instance->generic.serial,
instance->generic.cnt,
instance->generic.btn);
}
}
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