[FL-3082] WS: add protocol LaCrosse-TX (TFA Dostmann)

applications/plugins/weather_station/helpers/weather_station_types.h

@@ -3,7 +3,7 @@
 #include <furi.h>
 #include <furi_hal.h>
 
-#define WS_VERSION_APP "0.6.1"
+#define WS_VERSION_APP "0.7"
 #define WS_DEVELOPED "SkorP"
 #define WS_GITHUB "https://github.com/flipperdevices/flipperzero-firmware"
 

applications/plugins/weather_station/protocols/lacrosse_tx.c

@@ -0,0 +1,329 @@
+#include "lacrosse_tx.h"
+
+#define TAG "WSProtocolLaCrosse_TX"
+
+/*
+ * Help
+ * https://github.com/merbanan/rtl_433/blob/master/src/devices/lacrosse.c
+ *  
+ * 
+ * LaCrosse TX 433 Mhz Temperature and Humidity Sensors.
+ * - Tested: TX-7U and TX-6U (Temperature only)
+ * - Not Tested but should work: TX-3, TX-4
+ * - also TFA Dostmann 30.3120.90 sensor (for e.g. 35.1018.06 (WS-9015) station)
+ * - also TFA Dostmann 30.3121 sensor
+ * Protocol Documentation: http://www.f6fbb.org/domo/sensors/tx3_th.php
+ * Message is 44 bits, 11 x 4 bit nybbles:
+ *    [00] [cnt = 10] [type] [addr] [addr + parity] [v1] [v2] [v3] [iv1] [iv2] [check]
+ * Notes:
+ * - Zero Pulses are longer (1,400 uS High, 1,000 uS Low) = 2,400 uS
+ * - One Pulses are shorter (  550 uS High, 1,000 uS Low) = 1,600 uS
+ * - Sensor id changes when the battery is changed
+ * - Primary Value are BCD with one decimal place: vvv = 12.3
+ * - Secondary value is integer only intval = 12, seems to be a repeat of primary
+ *   This may actually be an additional data check because the 4 bit checksum
+ *   and parity bit is  pretty week at detecting errors.
+ * - Temperature is in Celsius with 50.0 added (to handle negative values)
+ * - Humidity values appear to be integer precision, decimal always 0.
+ * - There is a 4 bit checksum and a parity bit covering the three digit value
+ * - Parity check for TX-3 and TX-4 might be different.
+ * - Msg sent with one repeat after 30 mS
+ * - Temperature and humidity are sent as separate messages
+ * - Frequency for each sensor may be could be off by as much as 50-75 khz
+ * - LaCrosse Sensors in other frequency ranges (915 Mhz) use FSK not OOK
+ *   so they can't be decoded by rtl_433 currently.
+ * - Temperature and Humidity are sent in different messages bursts.
+*/
+
+#define LACROSSE_TX_GAP 1000
+#define LACROSSE_TX_BIT_SIZE 44
+#define LACROSSE_TX_SUNC_PATTERN 0x0A000000000
+#define LACROSSE_TX_SUNC_MASK 0x0F000000000
+#define LACROSSE_TX_MSG_TYPE_TEMP 0x00
+#define LACROSSE_TX_MSG_TYPE_HUM 0x0E
+
+static const SubGhzBlockConst ws_protocol_lacrosse_tx_const = {
+    .te_short = 550,
+    .te_long = 1300,
+    .te_delta = 120,
+    .min_count_bit_for_found = 40,
+};
+
+struct WSProtocolDecoderLaCrosse_TX {
+    SubGhzProtocolDecoderBase base;
+
+    SubGhzBlockDecoder decoder;
+    WSBlockGeneric generic;
+
+    uint16_t header_count;
+};
+
+struct WSProtocolEncoderLaCrosse_TX {
+    SubGhzProtocolEncoderBase base;
+
+    SubGhzProtocolBlockEncoder encoder;
+    WSBlockGeneric generic;
+};
+
+typedef enum {
+    LaCrosse_TXDecoderStepReset = 0,
+    LaCrosse_TXDecoderStepCheckPreambule,
+    LaCrosse_TXDecoderStepSaveDuration,
+    LaCrosse_TXDecoderStepCheckDuration,
+} LaCrosse_TXDecoderStep;
+
+const SubGhzProtocolDecoder ws_protocol_lacrosse_tx_decoder = {
+    .alloc = ws_protocol_decoder_lacrosse_tx_alloc,
+    .free = ws_protocol_decoder_lacrosse_tx_free,
+
+    .feed = ws_protocol_decoder_lacrosse_tx_feed,
+    .reset = ws_protocol_decoder_lacrosse_tx_reset,
+
+    .get_hash_data = ws_protocol_decoder_lacrosse_tx_get_hash_data,
+    .serialize = ws_protocol_decoder_lacrosse_tx_serialize,
+    .deserialize = ws_protocol_decoder_lacrosse_tx_deserialize,
+    .get_string = ws_protocol_decoder_lacrosse_tx_get_string,
+};
+
+const SubGhzProtocolEncoder ws_protocol_lacrosse_tx_encoder = {
+    .alloc = NULL,
+    .free = NULL,
+
+    .deserialize = NULL,
+    .stop = NULL,
+    .yield = NULL,
+};
+
+const SubGhzProtocol ws_protocol_lacrosse_tx = {
+    .name = WS_PROTOCOL_LACROSSE_TX_NAME,
+    .type = SubGhzProtocolWeatherStation,
+    .flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_868 |
+            SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable,
+
+    .decoder = &ws_protocol_lacrosse_tx_decoder,
+    .encoder = &ws_protocol_lacrosse_tx_encoder,
+};
+
+void* ws_protocol_decoder_lacrosse_tx_alloc(SubGhzEnvironment* environment) {
+    UNUSED(environment);
+    WSProtocolDecoderLaCrosse_TX* instance = malloc(sizeof(WSProtocolDecoderLaCrosse_TX));
+    instance->base.protocol = &ws_protocol_lacrosse_tx;
+    instance->generic.protocol_name = instance->base.protocol->name;
+    return instance;
+}
+
+void ws_protocol_decoder_lacrosse_tx_free(void* context) {
+    furi_assert(context);
+    WSProtocolDecoderLaCrosse_TX* instance = context;
+    free(instance);
+}
+
+void ws_protocol_decoder_lacrosse_tx_reset(void* context) {
+    furi_assert(context);
+    WSProtocolDecoderLaCrosse_TX* instance = context;
+    instance->header_count = 0;
+    instance->decoder.parser_step = LaCrosse_TXDecoderStepReset;
+}
+
+static bool ws_protocol_lacrosse_tx_check_crc(WSProtocolDecoderLaCrosse_TX* instance) {
+    if(!instance->decoder.decode_data) return false;
+    uint8_t msg[] = {
+        (instance->decoder.decode_data >> 36) & 0x0F,
+        (instance->decoder.decode_data >> 32) & 0x0F,
+        (instance->decoder.decode_data >> 28) & 0x0F,
+        (instance->decoder.decode_data >> 24) & 0x0F,
+        (instance->decoder.decode_data >> 20) & 0x0F,
+        (instance->decoder.decode_data >> 16) & 0x0F,
+        (instance->decoder.decode_data >> 12) & 0x0F,
+        (instance->decoder.decode_data >> 8) & 0x0F,
+        (instance->decoder.decode_data >> 4) & 0x0F};
+
+    uint8_t crc = subghz_protocol_blocks_add_bytes(msg, 9);
+    return ((crc & 0x0F) == ((instance->decoder.decode_data) & 0x0F));
+}
+
+/**
+ * Analysis of received data
+ * @param instance Pointer to a WSBlockGeneric* instance
+ */
+static void ws_protocol_lacrosse_tx_remote_controller(WSBlockGeneric* instance) {
+    uint8_t msg_type = (instance->data >> 32) & 0x0F;
+    instance->id = (((instance->data >> 28) & 0x0F) << 3) | (((instance->data >> 24) & 0x0F) >> 1);
+
+    float msg_value = (float)((instance->data >> 20) & 0x0F) * 10.0f +
+                      (float)((instance->data >> 16) & 0x0F) +
+                      (float)((instance->data >> 12) & 0x0F) * 0.1f;
+
+    if(msg_type == LACROSSE_TX_MSG_TYPE_TEMP) { //-V1051
+        instance->temp = msg_value - 50.0f;
+        instance->humidity = WS_NO_HUMIDITY;
+    } else if(msg_type == LACROSSE_TX_MSG_TYPE_HUM) {
+        //ToDo for verification, records are needed with sensors maintaining temperature and temperature for this standard
+        instance->humidity = (uint8_t)msg_value;
+    } else {
+        furi_crash("WS: WSProtocolLaCrosse_TX incorrect msg_type.");
+    }
+
+    instance->btn = WS_NO_BTN;
+    instance->battery_low = WS_NO_BATT;
+    instance->channel = WS_NO_CHANNEL;
+}
+
+void ws_protocol_decoder_lacrosse_tx_feed(void* context, bool level, uint32_t duration) {
+    furi_assert(context);
+    WSProtocolDecoderLaCrosse_TX* instance = context;
+
+    switch(instance->decoder.parser_step) {
+    case LaCrosse_TXDecoderStepReset:
+        if((!level) && (DURATION_DIFF(duration, LACROSSE_TX_GAP) <
+                        ws_protocol_lacrosse_tx_const.te_delta * 2)) {
+            instance->decoder.parser_step = LaCrosse_TXDecoderStepCheckPreambule;
+            instance->header_count = 0;
+        }
+        break;
+
+    case LaCrosse_TXDecoderStepCheckPreambule:
+
+        if(level) {
+            if((DURATION_DIFF(duration, ws_protocol_lacrosse_tx_const.te_short) <
+                ws_protocol_lacrosse_tx_const.te_delta) &&
+               (instance->header_count > 1)) {
+                instance->decoder.parser_step = LaCrosse_TXDecoderStepCheckDuration;
+                instance->decoder.decode_data = 0;
+                instance->decoder.decode_count_bit = 0;
+                instance->decoder.te_last = duration;
+            } else if(duration > (ws_protocol_lacrosse_tx_const.te_long * 2)) {
+                instance->decoder.parser_step = LaCrosse_TXDecoderStepReset;
+            }
+        } else {
+            if(DURATION_DIFF(duration, LACROSSE_TX_GAP) <
+               ws_protocol_lacrosse_tx_const.te_delta * 2) {
+                instance->decoder.te_last = duration;
+                instance->header_count++;
+            } else {
+                instance->decoder.parser_step = LaCrosse_TXDecoderStepReset;
+            }
+        }
+
+        break;
+
+    case LaCrosse_TXDecoderStepSaveDuration:
+        if(level) {
+            instance->decoder.te_last = duration;
+            instance->decoder.parser_step = LaCrosse_TXDecoderStepCheckDuration;
+        } else {
+            instance->decoder.parser_step = LaCrosse_TXDecoderStepReset;
+        }
+        break;
+
+    case LaCrosse_TXDecoderStepCheckDuration:
+
+        if(!level) {
+            if(duration > LACROSSE_TX_GAP * 3) {
+                if(DURATION_DIFF(
+                       instance->decoder.te_last, ws_protocol_lacrosse_tx_const.te_short) <
+                   ws_protocol_lacrosse_tx_const.te_delta) {
+                    subghz_protocol_blocks_add_bit(&instance->decoder, 1);
+                    instance->decoder.parser_step = LaCrosse_TXDecoderStepSaveDuration;
+                } else if(
+                    DURATION_DIFF(
+                        instance->decoder.te_last, ws_protocol_lacrosse_tx_const.te_long) <
+                    ws_protocol_lacrosse_tx_const.te_delta) {
+                    subghz_protocol_blocks_add_bit(&instance->decoder, 0);
+                    instance->decoder.parser_step = LaCrosse_TXDecoderStepSaveDuration;
+                }
+                if((instance->decoder.decode_data & LACROSSE_TX_SUNC_MASK) ==
+                   LACROSSE_TX_SUNC_PATTERN) {
+                    if(ws_protocol_lacrosse_tx_check_crc(instance)) {
+                        instance->generic.data = instance->decoder.decode_data;
+                        instance->generic.data_count_bit = LACROSSE_TX_BIT_SIZE;
+                        ws_protocol_lacrosse_tx_remote_controller(&instance->generic);
+                        if(instance->base.callback)
+                            instance->base.callback(&instance->base, instance->base.context);
+                    }
+                }
+
+                instance->decoder.decode_data = 0;
+                instance->decoder.decode_count_bit = 0;
+                instance->header_count = 0;
+                instance->decoder.parser_step = LaCrosse_TXDecoderStepReset;
+                break;
+            } else if(
+                (DURATION_DIFF(instance->decoder.te_last, ws_protocol_lacrosse_tx_const.te_short) <
+                 ws_protocol_lacrosse_tx_const.te_delta) &&
+                (DURATION_DIFF(duration, LACROSSE_TX_GAP) <
+                 ws_protocol_lacrosse_tx_const.te_delta * 2)) {
+                subghz_protocol_blocks_add_bit(&instance->decoder, 1);
+                instance->decoder.parser_step = LaCrosse_TXDecoderStepSaveDuration;
+            } else if(
+                (DURATION_DIFF(instance->decoder.te_last, ws_protocol_lacrosse_tx_const.te_long) <
+                 ws_protocol_lacrosse_tx_const.te_delta) &&
+                (DURATION_DIFF(duration, LACROSSE_TX_GAP) <
+                 ws_protocol_lacrosse_tx_const.te_delta * 2)) {
+                subghz_protocol_blocks_add_bit(&instance->decoder, 0);
+                instance->decoder.parser_step = LaCrosse_TXDecoderStepSaveDuration;
+            } else {
+                instance->decoder.parser_step = LaCrosse_TXDecoderStepReset;
+            }
+
+        } else {
+            instance->decoder.parser_step = LaCrosse_TXDecoderStepReset;
+        }
+
+        break;
+    }
+}
+
+uint8_t ws_protocol_decoder_lacrosse_tx_get_hash_data(void* context) {
+    furi_assert(context);
+    WSProtocolDecoderLaCrosse_TX* instance = context;
+    return subghz_protocol_blocks_get_hash_data(
+        &instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
+}
+
+bool ws_protocol_decoder_lacrosse_tx_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    SubGhzRadioPreset* preset) {
+    furi_assert(context);
+    WSProtocolDecoderLaCrosse_TX* instance = context;
+    return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
+}
+
+bool ws_protocol_decoder_lacrosse_tx_deserialize(void* context, FlipperFormat* flipper_format) {
+    furi_assert(context);
+    WSProtocolDecoderLaCrosse_TX* instance = context;
+    bool ret = false;
+    do {
+        if(!ws_block_generic_deserialize(&instance->generic, flipper_format)) {
+            break;
+        }
+        if(instance->generic.data_count_bit !=
+           ws_protocol_lacrosse_tx_const.min_count_bit_for_found) {
+            FURI_LOG_E(TAG, "Wrong number of bits in key");
+            break;
+        }
+        ret = true;
+    } while(false);
+    return ret;
+}
+
+void ws_protocol_decoder_lacrosse_tx_get_string(void* context, FuriString* output) {
+    furi_assert(context);
+    WSProtocolDecoderLaCrosse_TX* 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);
+}