subghz add nord ice protocol

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## Main changes
 - Current API: 87.6
+* SubGHz: Add **Nord ICE** protocol (33 bits, Static)
 * SubGHz: Add **CAME TOP44FGN** support in CAME TWEE protocol
 * NFC: Add Mifare Ultralight C Write Support (by @haw8411)
 * Apps: Build tag (**9mar2026p3**) - **Check out more Apps updates and fixes by following** [this link](https://github.com/xMasterX/all-the-plugins/commits/dev)

documentation/SubGHzSupportedSystems.md

@@ -41,6 +41,7 @@ That list is only for default SubGHz app, apps like *Weather Station* have their
 - KingGates Stylo 4k `433.92MHz` `AM650` (89 bits, Dynamic, KeeLoq based)
 - Mastercode `AM650` (36 bits, Static)
 - Megacode `AM650` (24 bits, Static)
+- Nord ICE `433.92MHz` `AM650` (33 bits, Static)
 - Nero Sketch `AM650` (40 bits, Static)
 - Nice Flo `433.92MHz` `AM650` (12, 24 bits, Static)
 - Nice FloR-S `433.92MHz` `AM650` (52 bits, Dynamic)
@@ -106,7 +107,7 @@ The following manufacturers have KeeLoq support in Unleashed firmware:
 - DEA Mio - `433.92MHz` `AM650` (KeeLoq, 64 bits) (modified serial in Hop, uses last 3 digits modifying first one (example - 419 -> C19) - simple learning)
 - DoorHan - 315MHz, `433.92MHz` `AM650` (KeeLoq, 64 bits)
 - DTM Neo - `433.92MHz` `AM650` (KeeLoq, 64 bits) (12bit serial part in Hop - simple learning)
-- Elmes Poland - `433.92MHz` `AM650` (KeeLoq, 64 bits) (normal learning)
+- Elmes Poland - `303, 433.92MHz` `AM650` (KeeLoq, 64 bits) (normal learning)
 - FAAC RC,XT - `433.92MHz, 868MHz` `AM650` (KeeLoq, 64 bits) (12bit serial part in Hop - normal learning)
 - Genius Bravo - `433.92MHz` `AM650` (KeeLoq, 64 bits) (12bit serial part in Hop - normal learning) (Genius ECHO, Genius Bravo (Button code 0xB for prog. mode))
 - Gibidi - `433.92MHz` `AM650` (KeeLoq, 64 bits)

lib/subghz/protocols/nord_ice.c

@@ -0,0 +1,350 @@
+#include "nord_ice.h"
+#include "../blocks/const.h"
+#include "../blocks/decoder.h"
+#include "../blocks/encoder.h"
+#include "../blocks/generic.h"
+#include "../blocks/math.h"
+
+#define TAG "SubGhzProtocolNord_Ice"
+
+static const SubGhzBlockConst subghz_protocol_nord_ice_const = {
+    .te_short = 300,
+    .te_long = 800,
+    .te_delta = 150,
+    .min_count_bit_for_found = 33,
+};
+
+struct SubGhzProtocolDecoderNord_Ice {
+    SubGhzProtocolDecoderBase base;
+
+    SubGhzBlockDecoder decoder;
+    SubGhzBlockGeneric generic;
+};
+
+struct SubGhzProtocolEncoderNord_Ice {
+    SubGhzProtocolEncoderBase base;
+
+    SubGhzProtocolBlockEncoder encoder;
+    SubGhzBlockGeneric generic;
+};
+
+typedef enum {
+    Nord_IceDecoderStepReset = 0,
+    Nord_IceDecoderStepSaveDuration,
+    Nord_IceDecoderStepCheckDuration,
+} Nord_IceDecoderStep;
+
+const SubGhzProtocolDecoder subghz_protocol_nord_ice_decoder = {
+    .alloc = subghz_protocol_decoder_nord_ice_alloc,
+    .free = subghz_protocol_decoder_nord_ice_free,
+
+    .feed = subghz_protocol_decoder_nord_ice_feed,
+    .reset = subghz_protocol_decoder_nord_ice_reset,
+
+    .get_hash_data = subghz_protocol_decoder_nord_ice_get_hash_data,
+    .serialize = subghz_protocol_decoder_nord_ice_serialize,
+    .deserialize = subghz_protocol_decoder_nord_ice_deserialize,
+    .get_string = subghz_protocol_decoder_nord_ice_get_string,
+};
+
+const SubGhzProtocolEncoder subghz_protocol_nord_ice_encoder = {
+    .alloc = subghz_protocol_encoder_nord_ice_alloc,
+    .free = subghz_protocol_encoder_nord_ice_free,
+
+    .deserialize = subghz_protocol_encoder_nord_ice_deserialize,
+    .stop = subghz_protocol_encoder_nord_ice_stop,
+    .yield = subghz_protocol_encoder_nord_ice_yield,
+};
+
+const SubGhzProtocol subghz_protocol_nord_ice = {
+    .name = SUBGHZ_PROTOCOL_NORD_ICE_NAME,
+    .type = SubGhzProtocolTypeStatic,
+    .flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
+            SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send,
+
+    .decoder = &subghz_protocol_nord_ice_decoder,
+    .encoder = &subghz_protocol_nord_ice_encoder,
+};
+
+void* subghz_protocol_encoder_nord_ice_alloc(SubGhzEnvironment* environment) {
+    UNUSED(environment);
+    SubGhzProtocolEncoderNord_Ice* instance = malloc(sizeof(SubGhzProtocolEncoderNord_Ice));
+
+    instance->base.protocol = &subghz_protocol_nord_ice;
+    instance->generic.protocol_name = instance->base.protocol->name;
+
+    instance->encoder.repeat = 3;
+    instance->encoder.size_upload = 128;
+    instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration));
+    instance->encoder.is_running = false;
+    return instance;
+}
+
+void subghz_protocol_encoder_nord_ice_free(void* context) {
+    furi_assert(context);
+    SubGhzProtocolEncoderNord_Ice* instance = context;
+    free(instance->encoder.upload);
+    free(instance);
+}
+
+/**
+ * Generating an upload from data.
+ * @param instance Pointer to a SubGhzProtocolEncoderNord_Ice instance
+ */
+static void subghz_protocol_encoder_nord_ice_get_upload(SubGhzProtocolEncoderNord_Ice* instance) {
+    furi_assert(instance);
+    size_t index = 0;
+
+    // Send key and GAP
+    for(uint8_t i = instance->generic.data_count_bit; i > 0; i--) {
+        if(bit_read(instance->generic.data, i - 1)) {
+            // Send bit 1
+            instance->encoder.upload[index++] =
+                level_duration_make(true, (uint32_t)subghz_protocol_nord_ice_const.te_long);
+            if(i == 1) {
+                //Send gap if bit was last
+                instance->encoder.upload[index++] = level_duration_make(
+                    false, (uint32_t)subghz_protocol_nord_ice_const.te_short * 25);
+            } else {
+                instance->encoder.upload[index++] =
+                    level_duration_make(false, (uint32_t)subghz_protocol_nord_ice_const.te_short);
+            }
+        } else {
+            // Send bit 0
+            instance->encoder.upload[index++] =
+                level_duration_make(true, (uint32_t)subghz_protocol_nord_ice_const.te_short);
+            if(i == 1) {
+                //Send gap if bit was last
+                instance->encoder.upload[index++] = level_duration_make(
+                    false, (uint32_t)subghz_protocol_nord_ice_const.te_short * 25);
+            } else {
+                instance->encoder.upload[index++] =
+                    level_duration_make(false, (uint32_t)subghz_protocol_nord_ice_const.te_long);
+            }
+        }
+    }
+
+    instance->encoder.size_upload = index;
+    return;
+}
+
+/** 
+ * Analysis of received data
+ * @param instance Pointer to a SubGhzBlockGeneric* instance
+ */
+static void subghz_protocol_nord_ice_check_remote_controller(SubGhzBlockGeneric* instance) {
+    instance->serial = (instance->data >> 15) << 9 |
+                       (instance->data & 0x1FF); // 26 bits for serial
+    instance->btn = (instance->data >> 9) & 0x3F; // 6 bits for button
+}
+
+SubGhzProtocolStatus
+    subghz_protocol_encoder_nord_ice_deserialize(void* context, FlipperFormat* flipper_format) {
+    furi_assert(context);
+    SubGhzProtocolEncoderNord_Ice* instance = context;
+    SubGhzProtocolStatus ret = SubGhzProtocolStatusError;
+    do {
+        ret = subghz_block_generic_deserialize_check_count_bit(
+            &instance->generic,
+            flipper_format,
+            subghz_protocol_nord_ice_const.min_count_bit_for_found);
+        if(ret != SubGhzProtocolStatusOk) {
+            break;
+        }
+        // Optional value
+        flipper_format_read_uint32(
+            flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1);
+
+        subghz_protocol_nord_ice_check_remote_controller(&instance->generic);
+        subghz_protocol_encoder_nord_ice_get_upload(instance);
+        instance->encoder.is_running = true;
+    } while(false);
+
+    return ret;
+}
+
+void subghz_protocol_encoder_nord_ice_stop(void* context) {
+    SubGhzProtocolEncoderNord_Ice* instance = context;
+    instance->encoder.is_running = false;
+}
+
+LevelDuration subghz_protocol_encoder_nord_ice_yield(void* context) {
+    SubGhzProtocolEncoderNord_Ice* instance = context;
+
+    if(instance->encoder.repeat == 0 || !instance->encoder.is_running) {
+        instance->encoder.is_running = false;
+        return level_duration_reset();
+    }
+
+    LevelDuration ret = instance->encoder.upload[instance->encoder.front];
+
+    if(++instance->encoder.front == instance->encoder.size_upload) {
+        if(!subghz_block_generic_global.endless_tx) instance->encoder.repeat--;
+        instance->encoder.front = 0;
+    }
+
+    return ret;
+}
+
+void* subghz_protocol_decoder_nord_ice_alloc(SubGhzEnvironment* environment) {
+    UNUSED(environment);
+    SubGhzProtocolDecoderNord_Ice* instance = malloc(sizeof(SubGhzProtocolDecoderNord_Ice));
+    instance->base.protocol = &subghz_protocol_nord_ice;
+    instance->generic.protocol_name = instance->base.protocol->name;
+    return instance;
+}
+
+void subghz_protocol_decoder_nord_ice_free(void* context) {
+    furi_assert(context);
+    SubGhzProtocolDecoderNord_Ice* instance = context;
+    free(instance);
+}
+
+void subghz_protocol_decoder_nord_ice_reset(void* context) {
+    furi_assert(context);
+    SubGhzProtocolDecoderNord_Ice* instance = context;
+    instance->decoder.parser_step = Nord_IceDecoderStepReset;
+}
+
+void subghz_protocol_decoder_nord_ice_feed(void* context, bool level, volatile uint32_t duration) {
+    furi_assert(context);
+    SubGhzProtocolDecoderNord_Ice* instance = context;
+
+    // Nord ICE Decoder
+    // 2026.03 - @xMasterX (MMX)
+
+    // Key samples
+    //
+    //                      Serial          Btn    Serial
+    // 0x9467688A btn 1 = 10010100011001110 110100 010001010
+    // 0x9467308A btn 2 = 10010100011001110 011000 010001010
+    // 0x9467628A btn 3 = 10010100011001110 110001 010001010
+    // 0x9467648A btn 4 = 10010100011001110 110010 010001010
+
+    switch(instance->decoder.parser_step) {
+    case Nord_IceDecoderStepReset:
+        if((!level) && (DURATION_DIFF(duration, subghz_protocol_nord_ice_const.te_short * 25) <
+                        subghz_protocol_nord_ice_const.te_delta * 11)) {
+            //Found GAP
+            instance->decoder.decode_data = 0;
+            instance->decoder.decode_count_bit = 0;
+            instance->decoder.parser_step = Nord_IceDecoderStepSaveDuration;
+        }
+        break;
+    case Nord_IceDecoderStepSaveDuration:
+        if(level) {
+            instance->decoder.te_last = duration;
+            instance->decoder.parser_step = Nord_IceDecoderStepCheckDuration;
+        } else {
+            instance->decoder.parser_step = Nord_IceDecoderStepReset;
+        }
+        break;
+    case Nord_IceDecoderStepCheckDuration:
+        if(!level) {
+            // Bit 0 is short and long timing = 300us HIGH (te_last) and 800us LOW
+            if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_nord_ice_const.te_short) <
+                subghz_protocol_nord_ice_const.te_delta) &&
+               (DURATION_DIFF(duration, subghz_protocol_nord_ice_const.te_long) <
+                subghz_protocol_nord_ice_const.te_delta)) {
+                subghz_protocol_blocks_add_bit(&instance->decoder, 0);
+                instance->decoder.parser_step = Nord_IceDecoderStepSaveDuration;
+                // Bit 1 is long and short timing = 800us HIGH (te_last) and 300us LOW
+            } else if(
+                (DURATION_DIFF(instance->decoder.te_last, subghz_protocol_nord_ice_const.te_long) <
+                 subghz_protocol_nord_ice_const.te_delta) &&
+                (DURATION_DIFF(duration, subghz_protocol_nord_ice_const.te_short) <
+                 subghz_protocol_nord_ice_const.te_delta)) {
+                subghz_protocol_blocks_add_bit(&instance->decoder, 1);
+                instance->decoder.parser_step = Nord_IceDecoderStepSaveDuration;
+            } else if(
+                // End of the key
+                DURATION_DIFF(duration, subghz_protocol_nord_ice_const.te_short * 25) <
+                subghz_protocol_nord_ice_const.te_delta * 11) {
+                //Found next GAP and add bit 0 or 1 (only bit 0 was found on the remotes)
+                if((DURATION_DIFF(
+                        instance->decoder.te_last, subghz_protocol_nord_ice_const.te_short) <
+                    subghz_protocol_nord_ice_const.te_delta)) {
+                    subghz_protocol_blocks_add_bit(&instance->decoder, 0);
+                }
+                if((DURATION_DIFF(
+                        instance->decoder.te_last, subghz_protocol_nord_ice_const.te_long) <
+                    subghz_protocol_nord_ice_const.te_delta)) {
+                    subghz_protocol_blocks_add_bit(&instance->decoder, 1);
+                }
+                // If got 33 bits key reading is finished
+                if(instance->decoder.decode_count_bit ==
+                   subghz_protocol_nord_ice_const.min_count_bit_for_found) {
+                    instance->generic.data = instance->decoder.decode_data;
+                    instance->generic.data_count_bit = instance->decoder.decode_count_bit;
+                    if(instance->base.callback)
+                        instance->base.callback(&instance->base, instance->base.context);
+                }
+                instance->decoder.decode_data = 0;
+                instance->decoder.decode_count_bit = 0;
+                instance->decoder.parser_step = Nord_IceDecoderStepReset;
+            } else {
+                instance->decoder.parser_step = Nord_IceDecoderStepReset;
+            }
+        } else {
+            instance->decoder.parser_step = Nord_IceDecoderStepReset;
+        }
+        break;
+    }
+}
+
+uint8_t subghz_protocol_decoder_nord_ice_get_hash_data(void* context) {
+    furi_assert(context);
+    SubGhzProtocolDecoderNord_Ice* instance = context;
+    return subghz_protocol_blocks_get_hash_data(
+        &instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
+}
+
+SubGhzProtocolStatus subghz_protocol_decoder_nord_ice_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    SubGhzRadioPreset* preset) {
+    furi_assert(context);
+    SubGhzProtocolDecoderNord_Ice* instance = context;
+    return subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
+}
+
+SubGhzProtocolStatus
+    subghz_protocol_decoder_nord_ice_deserialize(void* context, FlipperFormat* flipper_format) {
+    furi_assert(context);
+    SubGhzProtocolDecoderNord_Ice* instance = context;
+    return subghz_block_generic_deserialize_check_count_bit(
+        &instance->generic,
+        flipper_format,
+        subghz_protocol_nord_ice_const.min_count_bit_for_found);
+}
+
+void subghz_protocol_decoder_nord_ice_get_string(void* context, FuriString* output) {
+    furi_assert(context);
+    SubGhzProtocolDecoderNord_Ice* instance = context;
+
+    subghz_protocol_nord_ice_check_remote_controller(&instance->generic);
+
+    uint64_t code_found_reverse = subghz_protocol_blocks_reverse_key(
+        instance->generic.data, instance->generic.data_count_bit);
+
+    // for future use
+    // // push protocol data to global variable
+    // subghz_block_generic_global.btn_is_available = false;
+    // subghz_block_generic_global.current_btn = instance->generic.btn;
+    // subghz_block_generic_global.btn_length_bit = 4;
+    // //
+
+    furi_string_cat_printf(
+        output,
+        "%s %db\r\n"
+        "Key: 0x%08llX\r\n"
+        "Yek: 0x%08llX\r\n"
+        "Serial: 0x%07lX\r\n"
+        "Btn: %02X",
+        instance->generic.protocol_name,
+        instance->generic.data_count_bit,
+        (uint64_t)(instance->generic.data & 0xFFFFFFFFF),
+        (code_found_reverse & 0xFFFFFFFFF),
+        instance->generic.serial,
+        instance->generic.btn);
+}

lib/subghz/protocols/nord_ice.h

@@ -0,0 +1,109 @@
+#pragma once
+
+#include "base.h"
+
+#define SUBGHZ_PROTOCOL_NORD_ICE_NAME "Nord ICE"
+
+typedef struct SubGhzProtocolDecoderNord_Ice SubGhzProtocolDecoderNord_Ice;
+typedef struct SubGhzProtocolEncoderNord_Ice SubGhzProtocolEncoderNord_Ice;
+
+extern const SubGhzProtocolDecoder subghz_protocol_nord_ice_decoder;
+extern const SubGhzProtocolEncoder subghz_protocol_nord_ice_encoder;
+extern const SubGhzProtocol subghz_protocol_nord_ice;
+
+/**
+ * Allocate SubGhzProtocolEncoderNord_Ice.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolEncoderNord_Ice* pointer to a SubGhzProtocolEncoderNord_Ice instance
+ */
+void* subghz_protocol_encoder_nord_ice_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolEncoderNord_Ice.
+ * @param context Pointer to a SubGhzProtocolEncoderNord_Ice instance
+ */
+void subghz_protocol_encoder_nord_ice_free(void* context);
+
+/**
+ * Deserialize and generating an upload to send.
+ * @param context Pointer to a SubGhzProtocolEncoderNord_Ice instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return status
+ */
+SubGhzProtocolStatus
+    subghz_protocol_encoder_nord_ice_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Forced transmission stop.
+ * @param context Pointer to a SubGhzProtocolEncoderNord_Ice instance
+ */
+void subghz_protocol_encoder_nord_ice_stop(void* context);
+
+/**
+ * Getting the level and duration of the upload to be loaded into DMA.
+ * @param context Pointer to a SubGhzProtocolEncoderNord_Ice instance
+ * @return LevelDuration 
+ */
+LevelDuration subghz_protocol_encoder_nord_ice_yield(void* context);
+
+/**
+ * Allocate SubGhzProtocolDecoderNord_Ice.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolDecoderNord_Ice* pointer to a SubGhzProtocolDecoderNord_Ice instance
+ */
+void* subghz_protocol_decoder_nord_ice_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolDecoderNord_Ice.
+ * @param context Pointer to a SubGhzProtocolDecoderNord_Ice instance
+ */
+void subghz_protocol_decoder_nord_ice_free(void* context);
+
+/**
+ * Reset decoder SubGhzProtocolDecoderNord_Ice.
+ * @param context Pointer to a SubGhzProtocolDecoderNord_Ice instance
+ */
+void subghz_protocol_decoder_nord_ice_reset(void* context);
+
+/**
+ * Parse a raw sequence of levels and durations received from the air.
+ * @param context Pointer to a SubGhzProtocolDecoderNord_Ice instance
+ * @param level Signal level true-high false-low
+ * @param duration Duration of this level in, us
+ */
+void subghz_protocol_decoder_nord_ice_feed(void* context, bool level, uint32_t duration);
+
+/**
+ * Getting the hash sum of the last randomly received parcel.
+ * @param context Pointer to a SubGhzProtocolDecoderNord_Ice instance
+ * @return hash Hash sum
+ */
+uint8_t subghz_protocol_decoder_nord_ice_get_hash_data(void* context);
+
+/**
+ * Serialize data SubGhzProtocolDecoderNord_Ice.
+ * @param context Pointer to a SubGhzProtocolDecoderNord_Ice instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @param preset The modulation on which the signal was received, SubGhzRadioPreset
+ * @return status
+ */
+SubGhzProtocolStatus subghz_protocol_decoder_nord_ice_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    SubGhzRadioPreset* preset);
+
+/**
+ * Deserialize data SubGhzProtocolDecoderNord_Ice.
+ * @param context Pointer to a SubGhzProtocolDecoderNord_Ice instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return status
+ */
+SubGhzProtocolStatus
+    subghz_protocol_decoder_nord_ice_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Getting a textual representation of the received data.
+ * @param context Pointer to a SubGhzProtocolDecoderNord_Ice instance
+ * @param output Resulting text
+ */
+void subghz_protocol_decoder_nord_ice_get_string(void* context, FuriString* output);

lib/subghz/protocols/protocol_items.c

@@ -29,6 +29,7 @@ const SubGhzProtocol* const subghz_protocol_registry_items[] = {
     &subghz_protocol_elplast,       &subghz_protocol_treadmill37,
     &subghz_protocol_beninca_arc,   &subghz_protocol_jarolift,
     &subghz_protocol_ditec_gol4,    &subghz_protocol_keyfinder,
+    &subghz_protocol_nord_ice,
 };
 
 const SubGhzProtocolRegistry subghz_protocol_registry = {

lib/subghz/protocols/protocol_items.h

@@ -58,3 +58,4 @@
 #include "jarolift.h"
 #include "ditec_gol4.h"
 #include "keyfinder.h"
+#include "nord_ice.h"