Files
Momentum-Firmware/lib/subghz/protocols/emos_e601x.c
Totoo 29df6adb34 Sub-GHz: Added EmosE601x and Acurite 5in1 protocols from WS app (#170)
* Added EmosE601x and Acurite 5in1 WS

* fix descr

* Add string_brief placeholder

* Keep close to other WS protocols

* Update changelog

* Format

---------

Co-authored-by: Willy-JL <49810075+Willy-JL@users.noreply.github.com>
2024-07-27 04:17:15 +02:00

270 lines
9.6 KiB
C

#include "emos_e601x.h"
#define TAG "WSProtocolEmosE601x"
/*
* Help
* https://github.com/merbanan/rtl_433/blob/master/src/devices/emos_e6016.c
*
* Data Layout:
*
* PP PP PP II ?K KK KK KK CT TT HH SS DF XX RR
*
* - P: (24 bit) preamble
* - I: (8 bit) ID
* - ?: (2 bit) unknown
* - K: (32 bit) datetime, fields are 6d-4d-5d 5d:6d:6d
* - C: (2 bit) channel
* - T: (12 bit) temperature, signed, scale 10
* - H: (8 bit) humidity
* - S: (8 bit) wind speed
* - D: (4 bit) wind direction
* - F: (4 bit) flags of (?B??), B is battery good indication
* - X: (8 bit) checksum
* - R: (8 bit) repeat counter
*/
static const SubGhzBlockConst ws_protocol_emose601x_const = {
.te_short = 260,
.te_long = 800,
.te_delta = 100,
.min_count_bit_for_found = 24,
};
#define MAGIC_HEADER 0xaaa583
struct WSProtocolDecoderEmosE601x {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
WSBlockGeneric generic;
uint64_t upper_decode_data;
};
struct WSProtocolEncoderEmosE601x {
SubGhzProtocolEncoderBase base;
SubGhzProtocolBlockEncoder encoder;
WSBlockGeneric generic;
};
typedef enum {
EmosE601xDecoderStepReset = 0,
EmosE601xDecoderStepCheckPreamble,
EmosE601xDecoderStepSaveDuration,
EmosE601xDecoderStepCheckDuration,
} EmosE601xDecoderStep;
const SubGhzProtocolDecoder ws_protocol_emose601x_decoder = {
.alloc = ws_protocol_decoder_emose601x_alloc,
.free = ws_protocol_decoder_emose601x_free,
.feed = ws_protocol_decoder_emose601x_feed,
.reset = ws_protocol_decoder_emose601x_reset,
.get_hash_data = NULL,
.get_hash_data_long = ws_protocol_decoder_emose601x_get_hash_data,
.serialize = ws_protocol_decoder_emose601x_serialize,
.deserialize = ws_protocol_decoder_emose601x_deserialize,
.get_string = ws_protocol_decoder_emose601x_get_string,
.get_string_brief = NULL,
};
const SubGhzProtocolEncoder ws_protocol_emose601x_encoder = {
.alloc = NULL,
.free = NULL,
.deserialize = NULL,
.stop = NULL,
.yield = NULL,
};
const SubGhzProtocol ws_protocol_emose601x = {
.name = WS_PROTOCOL_EMOSE601X_NAME,
.type = SubGhzProtocolTypeStatic,
.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_868 |
SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable | SubGhzProtocolFlag_Load |
SubGhzProtocolFlag_Save,
.decoder = &ws_protocol_emose601x_decoder,
.encoder = &ws_protocol_emose601x_encoder,
.filter = SubGhzProtocolFilter_Weather,
};
void* ws_protocol_decoder_emose601x_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
WSProtocolDecoderEmosE601x* instance = malloc(sizeof(WSProtocolDecoderEmosE601x));
instance->base.protocol = &ws_protocol_emose601x;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void ws_protocol_decoder_emose601x_free(void* context) {
furi_assert(context);
WSProtocolDecoderEmosE601x* instance = context;
free(instance);
}
void ws_protocol_decoder_emose601x_reset(void* context) {
furi_assert(context);
WSProtocolDecoderEmosE601x* instance = context;
instance->decoder.parser_step = EmosE601xDecoderStepReset;
}
static bool ws_protocol_emose601x_check(WSProtocolDecoderEmosE601x* instance) {
uint8_t msg[] = {
instance->upper_decode_data >> 48,
instance->upper_decode_data >> 40,
instance->upper_decode_data >> 32,
instance->upper_decode_data >> 24,
instance->upper_decode_data >> 16,
instance->upper_decode_data >> 8,
instance->upper_decode_data,
instance->decoder.decode_data >> 56,
instance->decoder.decode_data >> 48,
instance->decoder.decode_data >> 40,
instance->decoder.decode_data >> 32,
instance->decoder.decode_data >> 24,
instance->decoder.decode_data >> 16};
uint8_t sum = subghz_protocol_blocks_add_bytes(msg, 13);
return (sum == ((instance->decoder.decode_data >> 8) & 0xff));
}
/**
* Analysis of received data
* @param instance Pointer to a WSBlockGeneric* instance
*/
static void ws_protocol_emose601x_extract_data(WSProtocolDecoderEmosE601x* instance) {
instance->generic.id = (instance->upper_decode_data >> 24) & 0xff;
instance->generic.battery_low = (instance->decoder.decode_data >> 10) & 1;
instance->generic.btn = WS_NO_BTN;
int16_t temp = (instance->decoder.decode_data >> 40) & 0xfff;
/* Handle signed data */
if(temp & 0x800) {
temp |= 0xf000;
}
instance->generic.temp = (float)temp / 10.0;
instance->generic.humidity = (instance->decoder.decode_data >> 32) & 0xff;
instance->generic.channel = (instance->decoder.decode_data >> 52) & 0x03;
instance->generic.data = (instance->decoder.decode_data >> 16);
}
void ws_protocol_decoder_emose601x_feed(void* context, bool level, uint32_t duration) {
furi_assert(context);
WSProtocolDecoderEmosE601x* instance = context;
switch(instance->decoder.parser_step) {
case EmosE601xDecoderStepReset:
if((level) && (DURATION_DIFF(duration, ws_protocol_emose601x_const.te_short * 7) <
ws_protocol_emose601x_const.te_delta * 2)) {
instance->decoder.parser_step = EmosE601xDecoderStepCheckPreamble;
instance->decoder.te_last = duration;
}
break;
case EmosE601xDecoderStepCheckPreamble:
if(level) {
instance->decoder.te_last = duration;
} else {
if((DURATION_DIFF(instance->decoder.te_last, ws_protocol_emose601x_const.te_short * 7) <
ws_protocol_emose601x_const.te_delta * 2) &&
(DURATION_DIFF(duration, ws_protocol_emose601x_const.te_short) <
ws_protocol_emose601x_const.te_delta)) {
//Found preamble
instance->decoder.parser_step = EmosE601xDecoderStepSaveDuration;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
} else {
instance->decoder.parser_step = EmosE601xDecoderStepReset;
}
}
break;
case EmosE601xDecoderStepSaveDuration:
if(level) {
instance->decoder.te_last = duration;
instance->decoder.parser_step = EmosE601xDecoderStepCheckDuration;
} else {
instance->decoder.parser_step = EmosE601xDecoderStepReset;
}
break;
case EmosE601xDecoderStepCheckDuration:
if(!level) {
if((DURATION_DIFF(instance->decoder.te_last, ws_protocol_emose601x_const.te_short) <
ws_protocol_emose601x_const.te_delta) &&
(DURATION_DIFF(duration, ws_protocol_emose601x_const.te_long) <
ws_protocol_emose601x_const.te_delta)) {
subghz_protocol_blocks_add_to_128_bit(
&instance->decoder, 0, &instance->upper_decode_data);
instance->decoder.parser_step = EmosE601xDecoderStepSaveDuration;
} else if(
(DURATION_DIFF(instance->decoder.te_last, ws_protocol_emose601x_const.te_long) <
ws_protocol_emose601x_const.te_delta) &&
(DURATION_DIFF(duration, ws_protocol_emose601x_const.te_short) <
ws_protocol_emose601x_const.te_delta)) {
subghz_protocol_blocks_add_to_128_bit(
&instance->decoder, 1, &instance->upper_decode_data);
instance->decoder.parser_step = EmosE601xDecoderStepSaveDuration;
} else {
instance->decoder.parser_step = EmosE601xDecoderStepReset;
break;
}
/* Bail out if the header doesn't match */
if(instance->decoder.decode_count_bit ==
ws_protocol_emose601x_const.min_count_bit_for_found) {
if(instance->decoder.decode_data != MAGIC_HEADER) {
instance->decoder.parser_step = EmosE601xDecoderStepReset;
break;
}
}
if(instance->decoder.decode_count_bit == 120) {
instance->generic.data_count_bit = instance->decoder.decode_count_bit;
if(ws_protocol_emose601x_check(instance)) {
ws_protocol_emose601x_extract_data(instance);
if(instance->base.callback)
instance->base.callback(&instance->base, instance->base.context);
}
break;
}
} else {
instance->decoder.parser_step = EmosE601xDecoderStepReset;
}
break;
}
}
uint32_t ws_protocol_decoder_emose601x_get_hash_data(void* context) {
furi_assert(context);
WSProtocolDecoderEmosE601x* instance = context;
return subghz_protocol_blocks_get_hash_data_long(
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
}
SubGhzProtocolStatus ws_protocol_decoder_emose601x_serialize(
void* context,
FlipperFormat* flipper_format,
SubGhzRadioPreset* preset) {
furi_assert(context);
WSProtocolDecoderEmosE601x* instance = context;
return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
}
SubGhzProtocolStatus
ws_protocol_decoder_emose601x_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
WSProtocolDecoderEmosE601x* instance = context;
return ws_block_generic_deserialize_check_count_bit(
&instance->generic, flipper_format, ws_protocol_emose601x_const.min_count_bit_for_found);
}
void ws_protocol_decoder_emose601x_get_string(void* context, FuriString* output) {
furi_assert(context);
WSProtocolDecoderEmosE601x* instance = context;
ws_block_generic_get_string(&instance->generic, output);
}