unleashed-firmware/applications/external/weather_station/protocols/wendox_w6726.c
Skorpionm 59386f9fa9
WS: add protocol "Wendox W6726" (#2604)
* WS: add protocol  "Wendox"
* WS: add bat status
* WS: add CRC, refactoring
* WS: description added
* WS: fix name file
* WeatherStation: cleanup alien symbols

Co-authored-by: あく <alleteam@gmail.com>
2023-05-03 13:15:47 +09:00

299 lines
11 KiB
C

#include "wendox_w6726.h"
#define TAG "WSProtocolWendoxW6726"
/*
* Wendox W6726
*
* Temperature -50C to +70C
* _ _ _ __ _
* _| |___| |___| |___ ... | |_| |__...._______________
* preamble data guard time
*
* 3 reps every 3 minutes
* in the first message 11 bytes of the preamble in the rest by 7
*
* bit 0: 1955-hi, 5865-lo
* bit 1: 5865-hi, 1955-lo
* guard time: 12*1955+(lo last bit)
* data: 29 bit
*
* IIIII | ZTTTTTTTTT | uuuuuuuBuu | CCCC
*
* I: identification;
* Z: temperature sign;
* T: temperature sign dependent +12C;
* B: battery low; flag to indicate low battery voltage;
* C: CRC4 (polynomial = 0x9, start_data = 0xD);
* u: unknown;
*/
static const SubGhzBlockConst ws_protocol_wendox_w6726_const = {
.te_short = 1955,
.te_long = 5865,
.te_delta = 300,
.min_count_bit_for_found = 29,
};
struct WSProtocolDecoderWendoxW6726 {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
WSBlockGeneric generic;
uint16_t header_count;
};
struct WSProtocolEncoderWendoxW6726 {
SubGhzProtocolEncoderBase base;
SubGhzProtocolBlockEncoder encoder;
WSBlockGeneric generic;
};
typedef enum {
WendoxW6726DecoderStepReset = 0,
WendoxW6726DecoderStepCheckPreambule,
WendoxW6726DecoderStepSaveDuration,
WendoxW6726DecoderStepCheckDuration,
} WendoxW6726DecoderStep;
const SubGhzProtocolDecoder ws_protocol_wendox_w6726_decoder = {
.alloc = ws_protocol_decoder_wendox_w6726_alloc,
.free = ws_protocol_decoder_wendox_w6726_free,
.feed = ws_protocol_decoder_wendox_w6726_feed,
.reset = ws_protocol_decoder_wendox_w6726_reset,
.get_hash_data = ws_protocol_decoder_wendox_w6726_get_hash_data,
.serialize = ws_protocol_decoder_wendox_w6726_serialize,
.deserialize = ws_protocol_decoder_wendox_w6726_deserialize,
.get_string = ws_protocol_decoder_wendox_w6726_get_string,
};
const SubGhzProtocolEncoder ws_protocol_wendox_w6726_encoder = {
.alloc = NULL,
.free = NULL,
.deserialize = NULL,
.stop = NULL,
.yield = NULL,
};
const SubGhzProtocol ws_protocol_wendox_w6726 = {
.name = WS_PROTOCOL_WENDOX_W6726_NAME,
.type = SubGhzProtocolWeatherStation,
.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_868 |
SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable,
.decoder = &ws_protocol_wendox_w6726_decoder,
.encoder = &ws_protocol_wendox_w6726_encoder,
};
void* ws_protocol_decoder_wendox_w6726_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
WSProtocolDecoderWendoxW6726* instance = malloc(sizeof(WSProtocolDecoderWendoxW6726));
instance->base.protocol = &ws_protocol_wendox_w6726;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void ws_protocol_decoder_wendox_w6726_free(void* context) {
furi_assert(context);
WSProtocolDecoderWendoxW6726* instance = context;
free(instance);
}
void ws_protocol_decoder_wendox_w6726_reset(void* context) {
furi_assert(context);
WSProtocolDecoderWendoxW6726* instance = context;
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
}
static bool ws_protocol_wendox_w6726_check(WSProtocolDecoderWendoxW6726* instance) {
if(!instance->decoder.decode_data) return false;
uint8_t msg[] = {
instance->decoder.decode_data >> 28,
instance->decoder.decode_data >> 20,
instance->decoder.decode_data >> 12,
instance->decoder.decode_data >> 4};
uint8_t crc = subghz_protocol_blocks_crc4(msg, 4, 0x9, 0xD);
return (crc == (instance->decoder.decode_data & 0x0F));
}
/**
* Analysis of received data
* @param instance Pointer to a WSBlockGeneric* instance
*/
static void ws_protocol_wendox_w6726_remote_controller(WSBlockGeneric* instance) {
instance->id = (instance->data >> 24) & 0xFF;
instance->battery_low = (instance->data >> 6) & 1;
instance->channel = WS_NO_CHANNEL;
if(((instance->data >> 23) & 1)) {
instance->temp = (float)(((instance->data >> 14) & 0x1FF) + 12) / 10.0f;
} else {
instance->temp = (float)((~(instance->data >> 14) & 0x1FF) + 1 - 12) / -10.0f;
}
if(instance->temp < -50.0f) {
instance->temp = -50.0f;
} else if(instance->temp > 70.0f) {
instance->temp = 70.0f;
}
instance->btn = WS_NO_BTN;
instance->humidity = WS_NO_HUMIDITY;
}
void ws_protocol_decoder_wendox_w6726_feed(void* context, bool level, uint32_t duration) {
furi_assert(context);
WSProtocolDecoderWendoxW6726* instance = context;
switch(instance->decoder.parser_step) {
case WendoxW6726DecoderStepReset:
if((level) && (DURATION_DIFF(duration, ws_protocol_wendox_w6726_const.te_short) <
ws_protocol_wendox_w6726_const.te_delta)) {
instance->decoder.parser_step = WendoxW6726DecoderStepCheckPreambule;
instance->decoder.te_last = duration;
instance->header_count = 0;
}
break;
case WendoxW6726DecoderStepCheckPreambule:
if(level) {
instance->decoder.te_last = duration;
} else {
if((DURATION_DIFF(instance->decoder.te_last, ws_protocol_wendox_w6726_const.te_short) <
ws_protocol_wendox_w6726_const.te_delta * 1) &&
(DURATION_DIFF(duration, ws_protocol_wendox_w6726_const.te_long) <
ws_protocol_wendox_w6726_const.te_delta * 2)) {
instance->header_count++;
} else if((instance->header_count > 4) && (instance->header_count < 12)) {
if((DURATION_DIFF(
instance->decoder.te_last, ws_protocol_wendox_w6726_const.te_long) <
ws_protocol_wendox_w6726_const.te_delta * 2) &&
(DURATION_DIFF(duration, ws_protocol_wendox_w6726_const.te_short) <
ws_protocol_wendox_w6726_const.te_delta)) {
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
instance->decoder.parser_step = WendoxW6726DecoderStepSaveDuration;
} else {
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
}
} else {
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
}
}
break;
case WendoxW6726DecoderStepSaveDuration:
if(level) {
instance->decoder.te_last = duration;
instance->decoder.parser_step = WendoxW6726DecoderStepCheckDuration;
} else {
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
}
break;
case WendoxW6726DecoderStepCheckDuration:
if(!level) {
if(duration >
ws_protocol_wendox_w6726_const.te_short + ws_protocol_wendox_w6726_const.te_long) {
if(DURATION_DIFF(
instance->decoder.te_last, ws_protocol_wendox_w6726_const.te_short) <
ws_protocol_wendox_w6726_const.te_delta) {
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
instance->decoder.parser_step = WendoxW6726DecoderStepSaveDuration;
} else if(
DURATION_DIFF(
instance->decoder.te_last, ws_protocol_wendox_w6726_const.te_long) <
ws_protocol_wendox_w6726_const.te_delta * 2) {
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
instance->decoder.parser_step = WendoxW6726DecoderStepSaveDuration;
} else {
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
}
if((instance->decoder.decode_count_bit ==
ws_protocol_wendox_w6726_const.min_count_bit_for_found) &&
ws_protocol_wendox_w6726_check(instance)) {
instance->generic.data = instance->decoder.decode_data;
instance->generic.data_count_bit = instance->decoder.decode_count_bit;
ws_protocol_wendox_w6726_remote_controller(&instance->generic);
if(instance->base.callback)
instance->base.callback(&instance->base, instance->base.context);
}
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
} else if(
(DURATION_DIFF(instance->decoder.te_last, ws_protocol_wendox_w6726_const.te_short) <
ws_protocol_wendox_w6726_const.te_delta) &&
(DURATION_DIFF(duration, ws_protocol_wendox_w6726_const.te_long) <
ws_protocol_wendox_w6726_const.te_delta * 3)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
instance->decoder.parser_step = WendoxW6726DecoderStepSaveDuration;
} else if(
(DURATION_DIFF(instance->decoder.te_last, ws_protocol_wendox_w6726_const.te_long) <
ws_protocol_wendox_w6726_const.te_delta * 2) &&
(DURATION_DIFF(duration, ws_protocol_wendox_w6726_const.te_short) <
ws_protocol_wendox_w6726_const.te_delta)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
instance->decoder.parser_step = WendoxW6726DecoderStepSaveDuration;
} else {
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
}
} else {
instance->decoder.parser_step = WendoxW6726DecoderStepReset;
}
break;
}
}
uint8_t ws_protocol_decoder_wendox_w6726_get_hash_data(void* context) {
furi_assert(context);
WSProtocolDecoderWendoxW6726* instance = context;
return subghz_protocol_blocks_get_hash_data(
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
}
SubGhzProtocolStatus ws_protocol_decoder_wendox_w6726_serialize(
void* context,
FlipperFormat* flipper_format,
SubGhzRadioPreset* preset) {
furi_assert(context);
WSProtocolDecoderWendoxW6726* instance = context;
return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
}
SubGhzProtocolStatus
ws_protocol_decoder_wendox_w6726_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
WSProtocolDecoderWendoxW6726* instance = context;
return ws_block_generic_deserialize_check_count_bit(
&instance->generic,
flipper_format,
ws_protocol_wendox_w6726_const.min_count_bit_for_found);
}
void ws_protocol_decoder_wendox_w6726_get_string(void* context, FuriString* output) {
furi_assert(context);
WSProtocolDecoderWendoxW6726* instance = context;
furi_string_printf(
output,
"%s %dbit\r\n"
"Key:0x%lX%08lX\r\n"
"Sn:0x%lX Ch:%d Bat:%d\r\n"
"Temp:%3.1f C Hum:%d%%",
instance->generic.protocol_name,
instance->generic.data_count_bit,
(uint32_t)(instance->generic.data >> 32),
(uint32_t)(instance->generic.data),
instance->generic.id,
instance->generic.channel,
instance->generic.battery_low,
(double)instance->generic.temp,
instance->generic.humidity);
}