SubGhz: Add Chamberlain 7-Code, Chamberlain 8-Code, Chamberlain 9-Code (#1288)

* SubGhz: fix protocol MegaCode start duration
* SubGhz:  add reception Chamberlain Code 7, 8, 9 protocols
* SubGhz: Generating an upload from HEX data and a duration of 1 bit
* SubGhz: add transmit Chamberlain Code 7, 8, 9 protocol
* SubGhz: Rename Firefly -> Linear

Co-authored-by: あく <alleteam@gmail.com>

applications/subghz/scenes/subghz_scene_set_type.c

@@ -22,7 +22,7 @@ enum SubmenuIndex {
     SubmenuIndexGateTX,
     SubmenuIndexDoorHan_315_00,
     SubmenuIndexDoorHan_433_92,
-    SubmenuIndexFirefly_300_00,
+    SubmenuIndexLinear_300_00,
     SubmenuIndexLiftMaster_315_00,
     SubmenuIndexLiftMaster_390_00,
     SubmenuIndexSecPlus_v2_310_00,
@@ -117,8 +117,8 @@ void subghz_scene_set_type_on_enter(void* context) {
         subghz);
     submenu_add_item(
         subghz->submenu,
-        "Firefly_300",
+        "Linear_300",
-        SubmenuIndexFirefly_300_00,
+        SubmenuIndexLinear_300_00,
         subghz_scene_set_type_submenu_callback,
         subghz);
     submenu_add_item(
@@ -256,11 +256,11 @@ bool subghz_scene_set_type_on_event(void* context, SceneManagerEvent event) {
                 generated_protocol = true;
             }
             break;
-        case SubmenuIndexFirefly_300_00:
+        case SubmenuIndexLinear_300_00:
             key = (key & 0x3FF);
             if(subghz_scene_set_type_submenu_gen_data_protocol(
                    subghz,
-                   SUBGHZ_PROTOCOL_FIREFLY_NAME,
+                   SUBGHZ_PROTOCOL_LINEAR_NAME,
                    key,
                    10,
                    300000000,

applications/unit_tests/subghz/subghz_test.c

@@ -328,10 +328,10 @@ MU_TEST(subghz_decoder_star_line_test) {
         "Test decoder " SUBGHZ_PROTOCOL_STAR_LINE_NAME " error\r\n");
 }
 
-MU_TEST(subghz_decoder_firefly_test) {
+MU_TEST(subghz_decoder_linear_test) {
     mu_assert(
-        subghz_decoder_test("/ext/unit_tests/subghz/firefly_raw.sub", SUBGHZ_PROTOCOL_FIREFLY_NAME),
+        subghz_decoder_test("/ext/unit_tests/subghz/linear_raw.sub", SUBGHZ_PROTOCOL_LINEAR_NAME),
-        "Test decoder " SUBGHZ_PROTOCOL_FIREFLY_NAME " error\r\n");
+        "Test decoder " SUBGHZ_PROTOCOL_LINEAR_NAME " error\r\n");
 }
 
 MU_TEST(subghz_decoder_megacode_test) {
@@ -398,10 +398,10 @@ MU_TEST(subghz_encoder_keelog_test) {
         "Test encoder " SUBGHZ_PROTOCOL_KEELOQ_NAME " error\r\n");
 }
 
-MU_TEST(subghz_encoder_firefly_test) {
+MU_TEST(subghz_encoder_linear_test) {
     mu_assert(
-        subghz_encoder_test("/ext/unit_tests/subghz/firely.sub"),
+        subghz_encoder_test("/ext/unit_tests/subghz/linear.sub"),
-        "Test encoder " SUBGHZ_PROTOCOL_FIREFLY_NAME " error\r\n");
+        "Test encoder " SUBGHZ_PROTOCOL_LINEAR_NAME " error\r\n");
 }
 
 MU_TEST(subghz_encoder_megacode_test) {
@@ -454,7 +454,7 @@ MU_TEST_SUITE(subghz) {
     MU_RUN_TEST(subghz_decoder_somfy_keytis_test);
     MU_RUN_TEST(subghz_decoder_somfy_telis_test);
     MU_RUN_TEST(subghz_decoder_star_line_test);
-    MU_RUN_TEST(subghz_decoder_firefly_test);
+    MU_RUN_TEST(subghz_decoder_linear_test);
     MU_RUN_TEST(subghz_decoder_megacode_test);
     MU_RUN_TEST(subghz_decoder_secplus_v1_test);
     MU_RUN_TEST(subghz_decoder_secplus_v2_test);
@@ -466,7 +466,7 @@ MU_TEST_SUITE(subghz) {
     MU_RUN_TEST(subghz_encoder_gate_tx_test);
     MU_RUN_TEST(subghz_encoder_nice_flo_test);
     MU_RUN_TEST(subghz_encoder_keelog_test);
-    MU_RUN_TEST(subghz_encoder_firefly_test);
+    MU_RUN_TEST(subghz_encoder_linear_test);
     MU_RUN_TEST(subghz_encoder_megacode_test);
     MU_RUN_TEST(subghz_encoder_holtek_test);
     MU_RUN_TEST(subghz_encoder_secplus_v1_test);

assets/unit_tests/subghz/linear.sub

@@ -2,6 +2,6 @@ Filetype: Flipper SubGhz Key File
 Version: 1
 Frequency: 300000000
 Preset: FuriHalSubGhzPresetOok650Async
-Protocol: Firefly
+Protocol: Linear
 Bit: 10
 Key: 00 00 00 00 00 00 01 E4

lib/subghz/blocks/encoder.c

@@ -1,3 +1,45 @@
 #include "encoder.h"
+#include "math.h"
+#include <furi/check.h>
 
 #define TAG "SubGhzBlockEncoder"
+
+void subghz_protocol_blocks_set_bit_array(
+    bool bit_value,
+    uint8_t data_array[],
+    size_t set_index_bit,
+    size_t max_size_array) {
+    furi_assert(set_index_bit < max_size_array * 8);
+    bit_write(data_array[set_index_bit >> 3], 7 - (set_index_bit & 0x7), bit_value);
+}
+
+bool subghz_protocol_blocks_get_bit_array(uint8_t data_array[], size_t read_index_bit) {
+    return bit_read(data_array[read_index_bit >> 3], 7 - (read_index_bit & 0x7));
+}
+
+size_t subghz_protocol_blocks_get_upload(
+    uint8_t data_array[],
+    size_t count_bit_data_array,
+    LevelDuration* upload,
+    size_t max_size_upload,
+    uint32_t duration_bit) {
+    size_t index_bit = 0;
+    size_t size_upload = 0;
+    uint32_t duration = duration_bit;
+    bool last_bit = subghz_protocol_blocks_get_bit_array(data_array, index_bit++);
+    for(size_t i = 1; i < count_bit_data_array; i++) {
+        if(last_bit == subghz_protocol_blocks_get_bit_array(data_array, index_bit)) {
+            duration += duration_bit;
+        } else {
+            furi_assert(max_size_upload > size_upload);
+            upload[size_upload++] = level_duration_make(
+                subghz_protocol_blocks_get_bit_array(data_array, index_bit - 1), duration);
+            last_bit = !last_bit;
+            duration = duration_bit;
+        }
+        index_bit++;
+    }
+    upload[size_upload++] = level_duration_make(
+        subghz_protocol_blocks_get_bit_array(data_array, index_bit - 1), duration);
+    return size_upload;
+}

lib/subghz/blocks/encoder.h

@@ -14,3 +14,39 @@ typedef struct {
     LevelDuration* upload;
 
 } SubGhzProtocolBlockEncoder;
+
+/**
+ * Set data bit when encoding HEX array.
+ * @param bit_value The value of the bit to be set
+ * @param data_array Pointer to a HEX array
+ * @param set_index_bit Number set a bit in the array starting from the left
+ * @param max_size_array array size, check not to overflow
+ */
+void subghz_protocol_blocks_set_bit_array(
+    bool bit_value,
+    uint8_t data_array[],
+    size_t set_index_bit,
+    size_t max_size_array);
+
+/**
+ * Get data bit when encoding HEX array.
+ * @param data_array Pointer to a HEX array
+ * @param read_index_bit Number get a bit in the array starting from the left
+ * @return bool value bit
+ */
+bool subghz_protocol_blocks_get_bit_array(uint8_t data_array[], size_t read_index_bit);
+
+/**
+ * Generating an upload from data.
+ * @param data_array Pointer to a HEX array
+ * @param count_bit_data_array How many bits in the array are processed
+ * @param upload Pointer to a LevelDuration
+ * @param max_size_upload upload size, check not to overflow
+ * @param duration_bit duration 1 bit
+ */
+size_t subghz_protocol_blocks_get_upload(
+    uint8_t data_array[],
+    size_t count_bit_data_array,
+    LevelDuration* upload,
+    size_t max_size_upload,
+    uint32_t duration_bit);

lib/subghz/protocols/chamberlain_code.c

@@ -0,0 +1,483 @@
+#include "chamberlain_code.h"
+
+#include "../blocks/const.h"
+#include "../blocks/decoder.h"
+#include "../blocks/encoder.h"
+#include "../blocks/generic.h"
+#include "../blocks/math.h"
+
+#define TAG "SubGhzProtocolChamb_Code"
+
+#define CHAMBERLAIN_CODE_BIT_STOP 0b0001
+#define CHAMBERLAIN_CODE_BIT_1 0b0011
+#define CHAMBERLAIN_CODE_BIT_0 0b0111
+
+#define CHAMBERLAIN_7_CODE_MASK 0xF000000FF0F
+#define CHAMBERLAIN_8_CODE_MASK 0xF00000F00F
+#define CHAMBERLAIN_9_CODE_MASK 0xF000000000F
+
+#define CHAMBERLAIN_7_CODE_MASK_CHECK 0x10000001101
+#define CHAMBERLAIN_8_CODE_MASK_CHECK 0x1000001001
+#define CHAMBERLAIN_9_CODE_MASK_CHECK 0x10000000001
+
+#define CHAMBERLAIN_7_CODE_DIP_PATTERN "%c%c%c%c%c%c%c"
+#define CHAMBERLAIN_7_CODE_DATA_TO_DIP(dip)                                                 \
+    (dip & 0x0040 ? '1' : '0'), (dip & 0x0020 ? '1' : '0'), (dip & 0x0010 ? '1' : '0'),     \
+        (dip & 0x0008 ? '1' : '0'), (dip & 0x0004 ? '1' : '0'), (dip & 0x0002 ? '1' : '0'), \
+        (dip & 0x0001 ? '1' : '0')
+
+#define CHAMBERLAIN_8_CODE_DIP_PATTERN "%c%c%c%c%cx%c%c"
+#define CHAMBERLAIN_8_CODE_DATA_TO_DIP(dip)                                                 \
+    (dip & 0x0080 ? '1' : '0'), (dip & 0x0040 ? '1' : '0'), (dip & 0x0020 ? '1' : '0'),     \
+        (dip & 0x0010 ? '1' : '0'), (dip & 0x0008 ? '1' : '0'), (dip & 0x0001 ? '1' : '0'), \
+        (dip & 0x0002 ? '1' : '0')
+
+#define CHAMBERLAIN_9_CODE_DIP_PATTERN "%c%c%c%c%c%c%c%c%c"
+#define CHAMBERLAIN_9_CODE_DATA_TO_DIP(dip)                                                 \
+    (dip & 0x0100 ? '1' : '0'), (dip & 0x0080 ? '1' : '0'), (dip & 0x0040 ? '1' : '0'),     \
+        (dip & 0x0020 ? '1' : '0'), (dip & 0x0010 ? '1' : '0'), (dip & 0x0008 ? '1' : '0'), \
+        (dip & 0x0001 ? '1' : '0'), (dip & 0x0002 ? '1' : '0'), (dip & 0x0004 ? '1' : '0')
+
+static const SubGhzBlockConst subghz_protocol_chamb_code_const = {
+    .te_short = 1000,
+    .te_long = 3000,
+    .te_delta = 200,
+    .min_count_bit_for_found = 10,
+};
+
+struct SubGhzProtocolDecoderChamb_Code {
+    SubGhzProtocolDecoderBase base;
+
+    SubGhzBlockDecoder decoder;
+    SubGhzBlockGeneric generic;
+};
+
+struct SubGhzProtocolEncoderChamb_Code {
+    SubGhzProtocolEncoderBase base;
+
+    SubGhzProtocolBlockEncoder encoder;
+    SubGhzBlockGeneric generic;
+};
+
+typedef enum {
+    Chamb_CodeDecoderStepReset = 0,
+    Chamb_CodeDecoderStepFoundStartBit,
+    Chamb_CodeDecoderStepSaveDuration,
+    Chamb_CodeDecoderStepCheckDuration,
+} Chamb_CodeDecoderStep;
+
+const SubGhzProtocolDecoder subghz_protocol_chamb_code_decoder = {
+    .alloc = subghz_protocol_decoder_chamb_code_alloc,
+    .free = subghz_protocol_decoder_chamb_code_free,
+
+    .feed = subghz_protocol_decoder_chamb_code_feed,
+    .reset = subghz_protocol_decoder_chamb_code_reset,
+
+    .get_hash_data = subghz_protocol_decoder_chamb_code_get_hash_data,
+    .serialize = subghz_protocol_decoder_chamb_code_serialize,
+    .deserialize = subghz_protocol_decoder_chamb_code_deserialize,
+    .get_string = subghz_protocol_decoder_chamb_code_get_string,
+};
+
+const SubGhzProtocolEncoder subghz_protocol_chamb_code_encoder = {
+    .alloc = subghz_protocol_encoder_chamb_code_alloc,
+    .free = subghz_protocol_encoder_chamb_code_free,
+
+    .deserialize = subghz_protocol_encoder_chamb_code_deserialize,
+    .stop = subghz_protocol_encoder_chamb_code_stop,
+    .yield = subghz_protocol_encoder_chamb_code_yield,
+};
+
+const SubGhzProtocol subghz_protocol_chamb_code = {
+    .name = SUBGHZ_PROTOCOL_CHAMB_CODE_NAME,
+    .type = SubGhzProtocolTypeStatic,
+    .flag = SubGhzProtocolFlag_315 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
+            SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send,
+
+    .decoder = &subghz_protocol_chamb_code_decoder,
+    .encoder = &subghz_protocol_chamb_code_encoder,
+};
+
+void* subghz_protocol_encoder_chamb_code_alloc(SubGhzEnvironment* environment) {
+    UNUSED(environment);
+    SubGhzProtocolEncoderChamb_Code* instance = malloc(sizeof(SubGhzProtocolEncoderChamb_Code));
+
+    instance->base.protocol = &subghz_protocol_chamb_code;
+    instance->generic.protocol_name = instance->base.protocol->name;
+
+    instance->encoder.repeat = 10;
+    instance->encoder.size_upload = 24;
+    instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration));
+    instance->encoder.is_runing = false;
+    return instance;
+}
+
+void subghz_protocol_encoder_chamb_code_free(void* context) {
+    furi_assert(context);
+    SubGhzProtocolEncoderChamb_Code* instance = context;
+    free(instance->encoder.upload);
+    free(instance);
+}
+
+static uint64_t subghz_protocol_chamb_bit_to_code(uint64_t data, uint8_t size) {
+    uint64_t data_res = 0;
+    for(uint8_t i = 0; i < size; i++) {
+        if(!(bit_read(data, size - i - 1))) {
+            data_res = data_res << 4 | CHAMBERLAIN_CODE_BIT_0;
+        } else {
+            data_res = data_res << 4 | CHAMBERLAIN_CODE_BIT_1;
+        }
+    }
+    return data_res;
+}
+
+/**
+ * Generating an upload from data.
+ * @param instance Pointer to a SubGhzProtocolEncoderChamb_Code instance
+ * @return true On success
+ */
+static bool
+    subghz_protocol_encoder_chamb_code_get_upload(SubGhzProtocolEncoderChamb_Code* instance) {
+    furi_assert(instance);
+
+    uint64_t data = subghz_protocol_chamb_bit_to_code(
+        instance->generic.data, instance->generic.data_count_bit);
+
+    switch(instance->generic.data_count_bit) {
+    case 7:
+        data = ((data >> 4) << 16) | (data & 0xF) << 4 | CHAMBERLAIN_7_CODE_MASK_CHECK;
+        break;
+    case 8:
+        data = ((data >> 12) << 16) | (data & 0xFF) << 4 | CHAMBERLAIN_8_CODE_MASK_CHECK;
+        break;
+    case 9:
+        data = (data << 4) | CHAMBERLAIN_9_CODE_MASK_CHECK;
+        break;
+
+    default:
+        furi_crash(TAG " unknown protocol.");
+        return false;
+        break;
+    }
+#define UPLOAD_HEX_DATA_SIZE 10
+    uint8_t upload_hex_data[UPLOAD_HEX_DATA_SIZE] = {0};
+    size_t upload_hex_count_bit = 0;
+
+    //insert guard time
+    for(uint8_t i = 0; i < 36; i++) {
+        subghz_protocol_blocks_set_bit_array(
+            0, upload_hex_data, upload_hex_count_bit++, UPLOAD_HEX_DATA_SIZE);
+    }
+
+    //insert data
+    switch(instance->generic.data_count_bit) {
+    case 7:
+    case 9:
+        for(uint8_t i = 44; i > 0; i--) {
+            if(!bit_read(data, i - 1)) {
+                subghz_protocol_blocks_set_bit_array(
+                    0, upload_hex_data, upload_hex_count_bit++, UPLOAD_HEX_DATA_SIZE);
+            } else {
+                subghz_protocol_blocks_set_bit_array(
+                    1, upload_hex_data, upload_hex_count_bit++, UPLOAD_HEX_DATA_SIZE);
+            }
+        }
+        break;
+    case 8:
+        for(uint8_t i = 40; i > 0; i--) {
+            if(!bit_read(data, i - 1)) {
+                subghz_protocol_blocks_set_bit_array(
+                    0, upload_hex_data, upload_hex_count_bit++, UPLOAD_HEX_DATA_SIZE);
+            } else {
+                subghz_protocol_blocks_set_bit_array(
+                    1, upload_hex_data, upload_hex_count_bit++, UPLOAD_HEX_DATA_SIZE);
+            }
+        }
+        break;
+    }
+
+    instance->encoder.size_upload = subghz_protocol_blocks_get_upload(
+        upload_hex_data,
+        upload_hex_count_bit,
+        instance->encoder.upload,
+        instance->encoder.size_upload,
+        subghz_protocol_chamb_code_const.te_short);
+
+    return true;
+}
+
+bool subghz_protocol_encoder_chamb_code_deserialize(void* context, FlipperFormat* flipper_format) {
+    furi_assert(context);
+    SubGhzProtocolEncoderChamb_Code* 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);
+
+        subghz_protocol_encoder_chamb_code_get_upload(instance);
+        instance->encoder.is_runing = true;
+
+        res = true;
+    } while(false);
+
+    return res;
+}
+
+void subghz_protocol_encoder_chamb_code_stop(void* context) {
+    SubGhzProtocolEncoderChamb_Code* instance = context;
+    instance->encoder.is_runing = false;
+}
+
+LevelDuration subghz_protocol_encoder_chamb_code_yield(void* context) {
+    SubGhzProtocolEncoderChamb_Code* 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_chamb_code_alloc(SubGhzEnvironment* environment) {
+    UNUSED(environment);
+    SubGhzProtocolDecoderChamb_Code* instance = malloc(sizeof(SubGhzProtocolDecoderChamb_Code));
+    instance->base.protocol = &subghz_protocol_chamb_code;
+    instance->generic.protocol_name = instance->base.protocol->name;
+    return instance;
+}
+
+void subghz_protocol_decoder_chamb_code_free(void* context) {
+    furi_assert(context);
+    SubGhzProtocolDecoderChamb_Code* instance = context;
+    free(instance);
+}
+
+void subghz_protocol_decoder_chamb_code_reset(void* context) {
+    furi_assert(context);
+    SubGhzProtocolDecoderChamb_Code* instance = context;
+    instance->decoder.parser_step = Chamb_CodeDecoderStepReset;
+}
+
+static bool subghz_protocol_chamb_code_to_bit(uint64_t* data, uint8_t size) {
+    uint64_t data_tmp = data[0];
+    uint64_t data_res = 0;
+    for(uint8_t i = 0; i < size; i++) {
+        if((data_tmp & 0xF) == CHAMBERLAIN_CODE_BIT_0) {
+            bit_write(data_res, i, 0);
+        } else if((data_tmp & 0xF) == CHAMBERLAIN_CODE_BIT_1) {
+            bit_write(data_res, i, 1);
+        } else {
+            return false;
+        }
+        data_tmp >>= 4;
+    }
+    data[0] = data_res;
+    return true;
+}
+
+static bool subghz_protocol_decoder_chamb_code_check_mask_and_parse(
+    SubGhzProtocolDecoderChamb_Code* instance) {
+    furi_assert(instance);
+    if(instance->decoder.decode_count_bit >
+       subghz_protocol_chamb_code_const.min_count_bit_for_found + 1)
+        return false;
+
+    if((instance->decoder.decode_data & CHAMBERLAIN_7_CODE_MASK) ==
+       CHAMBERLAIN_7_CODE_MASK_CHECK) {
+        instance->decoder.decode_count_bit = 7;
+        instance->decoder.decode_data &= ~CHAMBERLAIN_7_CODE_MASK;
+        instance->decoder.decode_data = (instance->decoder.decode_data >> 12) |
+                                        ((instance->decoder.decode_data >> 4) & 0xF);
+    } else if(
+        (instance->decoder.decode_data & CHAMBERLAIN_8_CODE_MASK) ==
+        CHAMBERLAIN_8_CODE_MASK_CHECK) {
+        instance->decoder.decode_count_bit = 8;
+        instance->decoder.decode_data &= ~CHAMBERLAIN_8_CODE_MASK;
+        instance->decoder.decode_data = instance->decoder.decode_data >> 4 |
+                                        CHAMBERLAIN_CODE_BIT_0 << 8; //DIP 6 no use
+    } else if(
+        (instance->decoder.decode_data & CHAMBERLAIN_9_CODE_MASK) ==
+        CHAMBERLAIN_9_CODE_MASK_CHECK) {
+        instance->decoder.decode_count_bit = 9;
+        instance->decoder.decode_data &= ~CHAMBERLAIN_9_CODE_MASK;
+        instance->decoder.decode_data >>= 4;
+    } else {
+        return false;
+    }
+    return subghz_protocol_chamb_code_to_bit(
+        &instance->decoder.decode_data, instance->decoder.decode_count_bit);
+}
+
+void subghz_protocol_decoder_chamb_code_feed(void* context, bool level, uint32_t duration) {
+    furi_assert(context);
+    SubGhzProtocolDecoderChamb_Code* instance = context;
+    switch(instance->decoder.parser_step) {
+    case Chamb_CodeDecoderStepReset:
+        if((!level) && (DURATION_DIFF(duration, subghz_protocol_chamb_code_const.te_short * 39) <
+                        subghz_protocol_chamb_code_const.te_delta * 20)) {
+            //Found header Chamb_Code
+            instance->decoder.parser_step = Chamb_CodeDecoderStepFoundStartBit;
+        }
+        break;
+    case Chamb_CodeDecoderStepFoundStartBit:
+        if((level) && (DURATION_DIFF(duration, subghz_protocol_chamb_code_const.te_short) <
+                       subghz_protocol_chamb_code_const.te_delta)) {
+            //Found start bit Chamb_Code
+            instance->decoder.decode_data = 0;
+            instance->decoder.decode_count_bit = 0;
+            instance->decoder.decode_data = instance->decoder.decode_data << 4 |
+                                            CHAMBERLAIN_CODE_BIT_STOP;
+            instance->decoder.decode_count_bit++;
+            instance->decoder.parser_step = Chamb_CodeDecoderStepSaveDuration;
+        } else {
+            instance->decoder.parser_step = Chamb_CodeDecoderStepReset;
+        }
+        break;
+    case Chamb_CodeDecoderStepSaveDuration:
+        if(!level) { //save interval
+            if(duration > subghz_protocol_chamb_code_const.te_short * 5) {
+                if(instance->decoder.decode_count_bit >=
+                   subghz_protocol_chamb_code_const.min_count_bit_for_found) {
+                    instance->generic.serial = 0x0;
+                    instance->generic.btn = 0x0;
+                    if(subghz_protocol_decoder_chamb_code_check_mask_and_parse(instance)) {
+                        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.parser_step = Chamb_CodeDecoderStepReset;
+            } else {
+                instance->decoder.te_last = duration;
+                instance->decoder.parser_step = Chamb_CodeDecoderStepCheckDuration;
+            }
+        } else {
+            instance->decoder.parser_step = Chamb_CodeDecoderStepReset;
+        }
+        break;
+    case Chamb_CodeDecoderStepCheckDuration:
+        if(level) {
+            if((DURATION_DIFF( //Found stop bit Chamb_Code
+                    instance->decoder.te_last,
+                    subghz_protocol_chamb_code_const.te_short * 3) <
+                subghz_protocol_chamb_code_const.te_delta) &&
+               (DURATION_DIFF(duration, subghz_protocol_chamb_code_const.te_short) <
+                subghz_protocol_chamb_code_const.te_delta)) {
+                instance->decoder.decode_data = instance->decoder.decode_data << 4 |
+                                                CHAMBERLAIN_CODE_BIT_STOP;
+                instance->decoder.decode_count_bit++;
+                instance->decoder.parser_step = Chamb_CodeDecoderStepSaveDuration;
+            } else if(
+                (DURATION_DIFF(
+                     instance->decoder.te_last, subghz_protocol_chamb_code_const.te_short * 2) <
+                 subghz_protocol_chamb_code_const.te_delta) &&
+                (DURATION_DIFF(duration, subghz_protocol_chamb_code_const.te_short * 2) <
+                 subghz_protocol_chamb_code_const.te_delta)) {
+                instance->decoder.decode_data = instance->decoder.decode_data << 4 |
+                                                CHAMBERLAIN_CODE_BIT_1;
+                instance->decoder.decode_count_bit++;
+                instance->decoder.parser_step = Chamb_CodeDecoderStepSaveDuration;
+            } else if(
+                (DURATION_DIFF(
+                     instance->decoder.te_last, subghz_protocol_chamb_code_const.te_short) <
+                 subghz_protocol_chamb_code_const.te_delta) &&
+                (DURATION_DIFF(duration, subghz_protocol_chamb_code_const.te_short * 3) <
+                 subghz_protocol_chamb_code_const.te_delta)) {
+                instance->decoder.decode_data = instance->decoder.decode_data << 4 |
+                                                CHAMBERLAIN_CODE_BIT_0;
+                instance->decoder.decode_count_bit++;
+                instance->decoder.parser_step = Chamb_CodeDecoderStepSaveDuration;
+            } else {
+                instance->decoder.parser_step = Chamb_CodeDecoderStepReset;
+            }
+
+        } else {
+            instance->decoder.parser_step = Chamb_CodeDecoderStepReset;
+        }
+        break;
+    }
+}
+
+uint8_t subghz_protocol_decoder_chamb_code_get_hash_data(void* context) {
+    furi_assert(context);
+    SubGhzProtocolDecoderChamb_Code* instance = context;
+    return subghz_protocol_blocks_get_hash_data(
+        &instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
+}
+
+bool subghz_protocol_decoder_chamb_code_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    uint32_t frequency,
+    FuriHalSubGhzPreset preset) {
+    furi_assert(context);
+    SubGhzProtocolDecoderChamb_Code* instance = context;
+    return subghz_block_generic_serialize(&instance->generic, flipper_format, frequency, preset);
+}
+
+bool subghz_protocol_decoder_chamb_code_deserialize(void* context, FlipperFormat* flipper_format) {
+    furi_assert(context);
+    SubGhzProtocolDecoderChamb_Code* instance = context;
+    return subghz_block_generic_deserialize(&instance->generic, flipper_format);
+}
+
+void subghz_protocol_decoder_chamb_code_get_string(void* context, string_t output) {
+    furi_assert(context);
+    SubGhzProtocolDecoderChamb_Code* instance = context;
+
+    uint32_t code_found_lo = instance->generic.data & 0x00000000ffffffff;
+
+    uint64_t code_found_reverse = subghz_protocol_blocks_reverse_key(
+        instance->generic.data, instance->generic.data_count_bit);
+
+    uint32_t code_found_reverse_lo = code_found_reverse & 0x00000000ffffffff;
+
+    string_cat_printf(
+        output,
+        "%s %db\r\n"
+        "Key:0x%03lX\r\n"
+        "Yek:0x%03lX\r\n",
+        instance->generic.protocol_name,
+        instance->generic.data_count_bit,
+        code_found_lo,
+        code_found_reverse_lo);
+
+    switch(instance->generic.data_count_bit) {
+    case 7:
+        string_cat_printf(
+            output,
+            "DIP:" CHAMBERLAIN_7_CODE_DIP_PATTERN "\r\n",
+            CHAMBERLAIN_7_CODE_DATA_TO_DIP(code_found_lo));
+        break;
+    case 8:
+        string_cat_printf(
+            output,
+            "DIP:" CHAMBERLAIN_8_CODE_DIP_PATTERN "\r\n",
+            CHAMBERLAIN_8_CODE_DATA_TO_DIP(code_found_lo));
+        break;
+    case 9:
+        string_cat_printf(
+            output,
+            "DIP:" CHAMBERLAIN_9_CODE_DIP_PATTERN "\r\n",
+            CHAMBERLAIN_9_CODE_DATA_TO_DIP(code_found_lo));
+        break;
+
+    default:
+        break;
+    }
+}

lib/subghz/protocols/chamberlain_code.h

@@ -0,0 +1,109 @@
+#pragma once
+
+#include "base.h"
+
+#define SUBGHZ_PROTOCOL_CHAMB_CODE_NAME "Cham_Code"
+
+typedef struct SubGhzProtocolDecoderChamb_Code SubGhzProtocolDecoderChamb_Code;
+typedef struct SubGhzProtocolEncoderChamb_Code SubGhzProtocolEncoderChamb_Code;
+
+extern const SubGhzProtocolDecoder subghz_protocol_chamb_code_decoder;
+extern const SubGhzProtocolEncoder subghz_protocol_chamb_code_encoder;
+extern const SubGhzProtocol subghz_protocol_chamb_code;
+
+/**
+ * Allocate SubGhzProtocolEncoderChamb_Code.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolEncoderChamb_Code* pointer to a SubGhzProtocolEncoderChamb_Code instance
+ */
+void* subghz_protocol_encoder_chamb_code_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolEncoderChamb_Code.
+ * @param context Pointer to a SubGhzProtocolEncoderChamb_Code instance
+ */
+void subghz_protocol_encoder_chamb_code_free(void* context);
+
+/**
+ * Deserialize and generating an upload to send.
+ * @param context Pointer to a SubGhzProtocolEncoderChamb_Code instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return true On success
+ */
+bool subghz_protocol_encoder_chamb_code_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Forced transmission stop.
+ * @param context Pointer to a SubGhzProtocolEncoderChamb_Code instance
+ */
+void subghz_protocol_encoder_chamb_code_stop(void* context);
+
+/**
+ * Getting the level and duration of the upload to be loaded into DMA.
+ * @param context Pointer to a SubGhzProtocolEncoderChamb_Code instance
+ * @return LevelDuration 
+ */
+LevelDuration subghz_protocol_encoder_chamb_code_yield(void* context);
+
+/**
+ * Allocate SubGhzProtocolDecoderChamb_Code.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolDecoderChamb_Code* pointer to a SubGhzProtocolDecoderChamb_Code instance
+ */
+void* subghz_protocol_decoder_chamb_code_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolDecoderChamb_Code.
+ * @param context Pointer to a SubGhzProtocolDecoderChamb_Code instance
+ */
+void subghz_protocol_decoder_chamb_code_free(void* context);
+
+/**
+ * Reset decoder SubGhzProtocolDecoderChamb_Code.
+ * @param context Pointer to a SubGhzProtocolDecoderChamb_Code instance
+ */
+void subghz_protocol_decoder_chamb_code_reset(void* context);
+
+/**
+ * Parse a raw sequence of levels and durations received from the air.
+ * @param context Pointer to a SubGhzProtocolDecoderChamb_Code instance
+ * @param level Signal level true-high false-low
+ * @param duration Duration of this level in, us
+ */
+void subghz_protocol_decoder_chamb_code_feed(void* context, bool level, uint32_t duration);
+
+/**
+ * Getting the hash sum of the last randomly received parcel.
+ * @param context Pointer to a SubGhzProtocolDecoderChamb_Code instance
+ * @return hash Hash sum
+ */
+uint8_t subghz_protocol_decoder_chamb_code_get_hash_data(void* context);
+
+/**
+ * Serialize data SubGhzProtocolDecoderChamb_Code.
+ * @param context Pointer to a SubGhzProtocolDecoderChamb_Code instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @param frequency The frequency at which the signal was received, Hz
+ * @param preset The modulation on which the signal was received, FuriHalSubGhzPreset
+ * @return true On success
+ */
+bool subghz_protocol_decoder_chamb_code_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    uint32_t frequency,
+    FuriHalSubGhzPreset preset);
+
+/**
+ * Deserialize data SubGhzProtocolDecoderChamb_Code.
+ * @param context Pointer to a SubGhzProtocolDecoderChamb_Code instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return true On success
+ */
+bool subghz_protocol_decoder_chamb_code_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Getting a textual representation of the received data.
+ * @param context Pointer to a SubGhzProtocolDecoderChamb_Code instance
+ * @param output Resulting text
+ */
+void subghz_protocol_decoder_chamb_code_get_string(void* context, string_t output);

lib/subghz/protocols/firefly.h

@@ -1,109 +0,0 @@
-#pragma once
-
-#include "base.h"
-
-#define SUBGHZ_PROTOCOL_FIREFLY_NAME "Firefly"
-
-typedef struct SubGhzProtocolDecoderFirefly SubGhzProtocolDecoderFirefly;
-typedef struct SubGhzProtocolEncoderFirefly SubGhzProtocolEncoderFirefly;
-
-extern const SubGhzProtocolDecoder subghz_protocol_firefly_decoder;
-extern const SubGhzProtocolEncoder subghz_protocol_firefly_encoder;
-extern const SubGhzProtocol subghz_protocol_firefly;
-
-/**
- * Allocate SubGhzProtocolEncoderFirefly.
- * @param environment Pointer to a SubGhzEnvironment instance
- * @return SubGhzProtocolEncoderFirefly* pointer to a SubGhzProtocolEncoderFirefly instance
- */
-void* subghz_protocol_encoder_firefly_alloc(SubGhzEnvironment* environment);
-
-/**
- * Free SubGhzProtocolEncoderFirefly.
- * @param context Pointer to a SubGhzProtocolEncoderFirefly instance
- */
-void subghz_protocol_encoder_firefly_free(void* context);
-
-/**
- * Deserialize and generating an upload to send.
- * @param context Pointer to a SubGhzProtocolEncoderFirefly instance
- * @param flipper_format Pointer to a FlipperFormat instance
- * @return true On success
- */
-bool subghz_protocol_encoder_firefly_deserialize(void* context, FlipperFormat* flipper_format);
-
-/**
- * Forced transmission stop.
- * @param context Pointer to a SubGhzProtocolEncoderFirefly instance
- */
-void subghz_protocol_encoder_firefly_stop(void* context);
-
-/**
- * Getting the level and duration of the upload to be loaded into DMA.
- * @param context Pointer to a SubGhzProtocolEncoderFirefly instance
- * @return LevelDuration 
- */
-LevelDuration subghz_protocol_encoder_firefly_yield(void* context);
-
-/**
- * Allocate SubGhzProtocolDecoderFirefly.
- * @param environment Pointer to a SubGhzEnvironment instance
- * @return SubGhzProtocolDecoderFirefly* pointer to a SubGhzProtocolDecoderFirefly instance
- */
-void* subghz_protocol_decoder_firefly_alloc(SubGhzEnvironment* environment);
-
-/**
- * Free SubGhzProtocolDecoderFirefly.
- * @param context Pointer to a SubGhzProtocolDecoderFirefly instance
- */
-void subghz_protocol_decoder_firefly_free(void* context);
-
-/**
- * Reset decoder SubGhzProtocolDecoderFirefly.
- * @param context Pointer to a SubGhzProtocolDecoderFirefly instance
- */
-void subghz_protocol_decoder_firefly_reset(void* context);
-
-/**
- * Parse a raw sequence of levels and durations received from the air.
- * @param context Pointer to a SubGhzProtocolDecoderFirefly instance
- * @param level Signal level true-high false-low
- * @param duration Duration of this level in, us
- */
-void subghz_protocol_decoder_firefly_feed(void* context, bool level, uint32_t duration);
-
-/**
- * Getting the hash sum of the last randomly received parcel.
- * @param context Pointer to a SubGhzProtocolDecoderFirefly instance
- * @return hash Hash sum
- */
-uint8_t subghz_protocol_decoder_firefly_get_hash_data(void* context);
-
-/**
- * Serialize data SubGhzProtocolDecoderFirefly.
- * @param context Pointer to a SubGhzProtocolDecoderFirefly instance
- * @param flipper_format Pointer to a FlipperFormat instance
- * @param frequency The frequency at which the signal was received, Hz
- * @param preset The modulation on which the signal was received, FuriHalSubGhzPreset
- * @return true On success
- */
-bool subghz_protocol_decoder_firefly_serialize(
-    void* context,
-    FlipperFormat* flipper_format,
-    uint32_t frequency,
-    FuriHalSubGhzPreset preset);
-
-/**
- * Deserialize data SubGhzProtocolDecoderFirefly.
- * @param context Pointer to a SubGhzProtocolDecoderFirefly instance
- * @param flipper_format Pointer to a FlipperFormat instance
- * @return true On success
- */
-bool subghz_protocol_decoder_firefly_deserialize(void* context, FlipperFormat* flipper_format);
-
-/**
- * Getting a textual representation of the received data.
- * @param context Pointer to a SubGhzProtocolDecoderFirefly instance
- * @param output Resulting text
- */
-void subghz_protocol_decoder_firefly_get_string(void* context, string_t output);

lib/subghz/protocols/linear.c

@@ -1,4 +1,4 @@
-#include "firefly.h"
+#include "linear.h"
 
 #include "../blocks/const.h"
 #include "../blocks/decoder.h"
@@ -6,7 +6,7 @@
 #include "../blocks/generic.h"
 #include "../blocks/math.h"
 
-#define TAG "SubGhzProtocolFirefly"
+#define TAG "SubGhzProtocolLinear"
 
 #define DIP_PATTERN "%c%c%c%c%c%c%c%c%c%c"
 #define DATA_TO_DIP(dip)                                                                    \
@@ -15,21 +15,21 @@
         (dip & 0x0008 ? '1' : '0'), (dip & 0x0004 ? '1' : '0'), (dip & 0x0002 ? '1' : '0'), \
         (dip & 0x0001 ? '1' : '0')
 
-static const SubGhzBlockConst subghz_protocol_firefly_const = {
+static const SubGhzBlockConst subghz_protocol_linear_const = {
     .te_short = 500,
     .te_long = 1500,
     .te_delta = 150,
     .min_count_bit_for_found = 10,
 };
 
-struct SubGhzProtocolDecoderFirefly {
+struct SubGhzProtocolDecoderLinear {
     SubGhzProtocolDecoderBase base;
 
     SubGhzBlockDecoder decoder;
     SubGhzBlockGeneric generic;
 };
 
-struct SubGhzProtocolEncoderFirefly {
+struct SubGhzProtocolEncoderLinear {
     SubGhzProtocolEncoderBase base;
 
     SubGhzProtocolBlockEncoder encoder;
@@ -37,48 +37,48 @@ struct SubGhzProtocolEncoderFirefly {
 };
 
 typedef enum {
-    FireflyDecoderStepReset = 0,
+    LinearDecoderStepReset = 0,
-    FireflyDecoderStepSaveDuration,
+    LinearDecoderStepSaveDuration,
-    FireflyDecoderStepCheckDuration,
+    LinearDecoderStepCheckDuration,
-} FireflyDecoderStep;
+} LinearDecoderStep;
 
-const SubGhzProtocolDecoder subghz_protocol_firefly_decoder = {
+const SubGhzProtocolDecoder subghz_protocol_linear_decoder = {
-    .alloc = subghz_protocol_decoder_firefly_alloc,
+    .alloc = subghz_protocol_decoder_linear_alloc,
-    .free = subghz_protocol_decoder_firefly_free,
+    .free = subghz_protocol_decoder_linear_free,
 
-    .feed = subghz_protocol_decoder_firefly_feed,
+    .feed = subghz_protocol_decoder_linear_feed,
-    .reset = subghz_protocol_decoder_firefly_reset,
+    .reset = subghz_protocol_decoder_linear_reset,
 
-    .get_hash_data = subghz_protocol_decoder_firefly_get_hash_data,
+    .get_hash_data = subghz_protocol_decoder_linear_get_hash_data,
-    .serialize = subghz_protocol_decoder_firefly_serialize,
+    .serialize = subghz_protocol_decoder_linear_serialize,
-    .deserialize = subghz_protocol_decoder_firefly_deserialize,
+    .deserialize = subghz_protocol_decoder_linear_deserialize,
-    .get_string = subghz_protocol_decoder_firefly_get_string,
+    .get_string = subghz_protocol_decoder_linear_get_string,
 };
 
-const SubGhzProtocolEncoder subghz_protocol_firefly_encoder = {
+const SubGhzProtocolEncoder subghz_protocol_linear_encoder = {
-    .alloc = subghz_protocol_encoder_firefly_alloc,
+    .alloc = subghz_protocol_encoder_linear_alloc,
-    .free = subghz_protocol_encoder_firefly_free,
+    .free = subghz_protocol_encoder_linear_free,
 
-    .deserialize = subghz_protocol_encoder_firefly_deserialize,
+    .deserialize = subghz_protocol_encoder_linear_deserialize,
-    .stop = subghz_protocol_encoder_firefly_stop,
+    .stop = subghz_protocol_encoder_linear_stop,
-    .yield = subghz_protocol_encoder_firefly_yield,
+    .yield = subghz_protocol_encoder_linear_yield,
 };
 
-const SubGhzProtocol subghz_protocol_firefly = {
+const SubGhzProtocol subghz_protocol_linear = {
-    .name = SUBGHZ_PROTOCOL_FIREFLY_NAME,
+    .name = SUBGHZ_PROTOCOL_LINEAR_NAME,
     .type = SubGhzProtocolTypeStatic,
     .flag = SubGhzProtocolFlag_315 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
             SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send,
 
-    .decoder = &subghz_protocol_firefly_decoder,
+    .decoder = &subghz_protocol_linear_decoder,
-    .encoder = &subghz_protocol_firefly_encoder,
+    .encoder = &subghz_protocol_linear_encoder,
 };
 
-void* subghz_protocol_encoder_firefly_alloc(SubGhzEnvironment* environment) {
+void* subghz_protocol_encoder_linear_alloc(SubGhzEnvironment* environment) {
     UNUSED(environment);
-    SubGhzProtocolEncoderFirefly* instance = malloc(sizeof(SubGhzProtocolEncoderFirefly));
+    SubGhzProtocolEncoderLinear* instance = malloc(sizeof(SubGhzProtocolEncoderLinear));
 
-    instance->base.protocol = &subghz_protocol_firefly;
+    instance->base.protocol = &subghz_protocol_linear;
     instance->generic.protocol_name = instance->base.protocol->name;
 
     instance->encoder.repeat = 10;
@@ -88,19 +88,19 @@ void* subghz_protocol_encoder_firefly_alloc(SubGhzEnvironment* environment) {
     return instance;
 }
 
-void subghz_protocol_encoder_firefly_free(void* context) {
+void subghz_protocol_encoder_linear_free(void* context) {
     furi_assert(context);
-    SubGhzProtocolEncoderFirefly* instance = context;
+    SubGhzProtocolEncoderLinear* instance = context;
     free(instance->encoder.upload);
     free(instance);
 }
 
 /**
  * Generating an upload from data.
- * @param instance Pointer to a SubGhzProtocolEncoderFirefly instance
+ * @param instance Pointer to a SubGhzProtocolEncoderLinear instance
  * @return true On success
  */
-static bool subghz_protocol_encoder_firefly_get_upload(SubGhzProtocolEncoderFirefly* instance) {
+static bool subghz_protocol_encoder_linear_get_upload(SubGhzProtocolEncoderLinear* instance) {
     furi_assert(instance);
     size_t index = 0;
     size_t size_upload = (instance->generic.data_count_bit * 2);
@@ -116,40 +116,40 @@ static bool subghz_protocol_encoder_firefly_get_upload(SubGhzProtocolEncoderFire
         if(bit_read(instance->generic.data, i - 1)) {
             //send bit 1
             instance->encoder.upload[index++] =
-                level_duration_make(true, (uint32_t)subghz_protocol_firefly_const.te_short * 3);
+                level_duration_make(true, (uint32_t)subghz_protocol_linear_const.te_short * 3);
             instance->encoder.upload[index++] =
-                level_duration_make(false, (uint32_t)subghz_protocol_firefly_const.te_short);
+                level_duration_make(false, (uint32_t)subghz_protocol_linear_const.te_short);
         } else {
             //send bit 0
             instance->encoder.upload[index++] =
-                level_duration_make(true, (uint32_t)subghz_protocol_firefly_const.te_short);
+                level_duration_make(true, (uint32_t)subghz_protocol_linear_const.te_short);
             instance->encoder.upload[index++] =
-                level_duration_make(false, (uint32_t)subghz_protocol_firefly_const.te_short * 3);
+                level_duration_make(false, (uint32_t)subghz_protocol_linear_const.te_short * 3);
         }
     }
     //Send end bit
     if(bit_read(instance->generic.data, 0)) {
         //send bit 1
         instance->encoder.upload[index++] =
-            level_duration_make(true, (uint32_t)subghz_protocol_firefly_const.te_short * 3);
+            level_duration_make(true, (uint32_t)subghz_protocol_linear_const.te_short * 3);
         //Send PT_GUARD
         instance->encoder.upload[index++] =
-            level_duration_make(false, (uint32_t)subghz_protocol_firefly_const.te_short * 42);
+            level_duration_make(false, (uint32_t)subghz_protocol_linear_const.te_short * 42);
     } else {
         //send bit 0
         instance->encoder.upload[index++] =
-            level_duration_make(true, (uint32_t)subghz_protocol_firefly_const.te_short);
+            level_duration_make(true, (uint32_t)subghz_protocol_linear_const.te_short);
         //Send PT_GUARD
         instance->encoder.upload[index++] =
-            level_duration_make(false, (uint32_t)subghz_protocol_firefly_const.te_short * 44);
+            level_duration_make(false, (uint32_t)subghz_protocol_linear_const.te_short * 44);
     }
 
     return true;
 }
 
-bool subghz_protocol_encoder_firefly_deserialize(void* context, FlipperFormat* flipper_format) {
+bool subghz_protocol_encoder_linear_deserialize(void* context, FlipperFormat* flipper_format) {
     furi_assert(context);
-    SubGhzProtocolEncoderFirefly* instance = context;
+    SubGhzProtocolEncoderLinear* instance = context;
     bool res = false;
     do {
         if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
@@ -161,7 +161,7 @@ bool subghz_protocol_encoder_firefly_deserialize(void* context, FlipperFormat* f
         flipper_format_read_uint32(
             flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1);
 
-        subghz_protocol_encoder_firefly_get_upload(instance);
+        subghz_protocol_encoder_linear_get_upload(instance);
         instance->encoder.is_runing = true;
 
         res = true;
@@ -170,13 +170,13 @@ bool subghz_protocol_encoder_firefly_deserialize(void* context, FlipperFormat* f
     return res;
 }
 
-void subghz_protocol_encoder_firefly_stop(void* context) {
+void subghz_protocol_encoder_linear_stop(void* context) {
-    SubGhzProtocolEncoderFirefly* instance = context;
+    SubGhzProtocolEncoderLinear* instance = context;
     instance->encoder.is_runing = false;
 }
 
-LevelDuration subghz_protocol_encoder_firefly_yield(void* context) {
+LevelDuration subghz_protocol_encoder_linear_yield(void* context) {
-    SubGhzProtocolEncoderFirefly* instance = context;
+    SubGhzProtocolEncoderLinear* instance = context;
 
     if(instance->encoder.repeat == 0 || !instance->encoder.is_runing) {
         instance->encoder.is_runing = false;
@@ -193,68 +193,66 @@ LevelDuration subghz_protocol_encoder_firefly_yield(void* context) {
     return ret;
 }
 
-void* subghz_protocol_decoder_firefly_alloc(SubGhzEnvironment* environment) {
+void* subghz_protocol_decoder_linear_alloc(SubGhzEnvironment* environment) {
     UNUSED(environment);
-    SubGhzProtocolDecoderFirefly* instance = malloc(sizeof(SubGhzProtocolDecoderFirefly));
+    SubGhzProtocolDecoderLinear* instance = malloc(sizeof(SubGhzProtocolDecoderLinear));
-    instance->base.protocol = &subghz_protocol_firefly;
+    instance->base.protocol = &subghz_protocol_linear;
     instance->generic.protocol_name = instance->base.protocol->name;
     return instance;
 }
 
-void subghz_protocol_decoder_firefly_free(void* context) {
+void subghz_protocol_decoder_linear_free(void* context) {
     furi_assert(context);
-    SubGhzProtocolDecoderFirefly* instance = context;
+    SubGhzProtocolDecoderLinear* instance = context;
     free(instance);
 }
 
-void subghz_protocol_decoder_firefly_reset(void* context) {
+void subghz_protocol_decoder_linear_reset(void* context) {
     furi_assert(context);
-    SubGhzProtocolDecoderFirefly* instance = context;
+    SubGhzProtocolDecoderLinear* instance = context;
-    instance->decoder.parser_step = FireflyDecoderStepReset;
+    instance->decoder.parser_step = LinearDecoderStepReset;
 }
 
-void subghz_protocol_decoder_firefly_feed(void* context, bool level, uint32_t duration) {
+void subghz_protocol_decoder_linear_feed(void* context, bool level, uint32_t duration) {
     furi_assert(context);
-    SubGhzProtocolDecoderFirefly* instance = context;
+    SubGhzProtocolDecoderLinear* instance = context;
     switch(instance->decoder.parser_step) {
-    case FireflyDecoderStepReset:
+    case LinearDecoderStepReset:
-        if((!level) && (DURATION_DIFF(duration, subghz_protocol_firefly_const.te_short * 42) <
+        if((!level) && (DURATION_DIFF(duration, subghz_protocol_linear_const.te_short * 42) <
-                        subghz_protocol_firefly_const.te_delta * 20)) {
+                        subghz_protocol_linear_const.te_delta * 20)) {
-            //Found header Firefly
+            //Found header Linear
             instance->decoder.decode_data = 0;
             instance->decoder.decode_count_bit = 0;
-            instance->decoder.parser_step = FireflyDecoderStepSaveDuration;
+            instance->decoder.parser_step = LinearDecoderStepSaveDuration;
         }
         break;
-    case FireflyDecoderStepSaveDuration:
+    case LinearDecoderStepSaveDuration:
         if(level) {
             instance->decoder.te_last = duration;
-            instance->decoder.parser_step = FireflyDecoderStepCheckDuration;
+            instance->decoder.parser_step = LinearDecoderStepCheckDuration;
         } else {
-            instance->decoder.parser_step = FireflyDecoderStepReset;
+            instance->decoder.parser_step = LinearDecoderStepReset;
         }
         break;
-    case FireflyDecoderStepCheckDuration:
+    case LinearDecoderStepCheckDuration:
         if(!level) { //save interval
-            if(duration >= (subghz_protocol_firefly_const.te_short * 5)) {
+            if(duration >= (subghz_protocol_linear_const.te_short * 5)) {
-                instance->decoder.parser_step = FireflyDecoderStepReset;
+                instance->decoder.parser_step = LinearDecoderStepReset;
                 //checking that the duration matches the guardtime
-                if((DURATION_DIFF(duration, subghz_protocol_firefly_const.te_short * 42) >
+                if((DURATION_DIFF(duration, subghz_protocol_linear_const.te_short * 42) >
-                    subghz_protocol_firefly_const.te_delta * 20)) {
+                    subghz_protocol_linear_const.te_delta * 20)) {
                     break;
                 }
-                if(DURATION_DIFF(
+                if(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_linear_const.te_short) <
-                       instance->decoder.te_last, subghz_protocol_firefly_const.te_short) <
+                   subghz_protocol_linear_const.te_delta) {
-                   subghz_protocol_firefly_const.te_delta) {
                     subghz_protocol_blocks_add_bit(&instance->decoder, 0);
                 } else if(
-                    DURATION_DIFF(
+                    DURATION_DIFF(instance->decoder.te_last, subghz_protocol_linear_const.te_long) <
-                        instance->decoder.te_last, subghz_protocol_firefly_const.te_long) <
+                    subghz_protocol_linear_const.te_delta) {
-                    subghz_protocol_firefly_const.te_delta) {
                     subghz_protocol_blocks_add_bit(&instance->decoder, 1);
                 }
                 if(instance->decoder.decode_count_bit ==
-                   subghz_protocol_firefly_const.min_count_bit_for_found) {
+                   subghz_protocol_linear_const.min_count_bit_for_found) {
                     instance->generic.serial = 0x0;
                     instance->generic.btn = 0x0;
 
@@ -267,56 +265,56 @@ void subghz_protocol_decoder_firefly_feed(void* context, bool level, uint32_t du
                 break;
             }
 
-            if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_firefly_const.te_short) <
+            if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_linear_const.te_short) <
-                subghz_protocol_firefly_const.te_delta) &&
+                subghz_protocol_linear_const.te_delta) &&
-               (DURATION_DIFF(duration, subghz_protocol_firefly_const.te_long) <
+               (DURATION_DIFF(duration, subghz_protocol_linear_const.te_long) <
-                subghz_protocol_firefly_const.te_delta)) {
+                subghz_protocol_linear_const.te_delta)) {
                 subghz_protocol_blocks_add_bit(&instance->decoder, 0);
-                instance->decoder.parser_step = FireflyDecoderStepSaveDuration;
+                instance->decoder.parser_step = LinearDecoderStepSaveDuration;
             } else if(
-                (DURATION_DIFF(instance->decoder.te_last, subghz_protocol_firefly_const.te_long) <
+                (DURATION_DIFF(instance->decoder.te_last, subghz_protocol_linear_const.te_long) <
-                 subghz_protocol_firefly_const.te_delta) &&
+                 subghz_protocol_linear_const.te_delta) &&
-                (DURATION_DIFF(duration, subghz_protocol_firefly_const.te_short) <
+                (DURATION_DIFF(duration, subghz_protocol_linear_const.te_short) <
-                 subghz_protocol_firefly_const.te_delta)) {
+                 subghz_protocol_linear_const.te_delta)) {
                 subghz_protocol_blocks_add_bit(&instance->decoder, 1);
-                instance->decoder.parser_step = FireflyDecoderStepSaveDuration;
+                instance->decoder.parser_step = LinearDecoderStepSaveDuration;
             } else {
-                instance->decoder.parser_step = FireflyDecoderStepReset;
+                instance->decoder.parser_step = LinearDecoderStepReset;
             }
 
         } else {
-            instance->decoder.parser_step = FireflyDecoderStepReset;
+            instance->decoder.parser_step = LinearDecoderStepReset;
         }
         break;
     }
 }
 
-uint8_t subghz_protocol_decoder_firefly_get_hash_data(void* context) {
+uint8_t subghz_protocol_decoder_linear_get_hash_data(void* context) {
     furi_assert(context);
-    SubGhzProtocolDecoderFirefly* instance = context;
+    SubGhzProtocolDecoderLinear* instance = context;
     return subghz_protocol_blocks_get_hash_data(
         &instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
 }
 
-bool subghz_protocol_decoder_firefly_serialize(
+bool subghz_protocol_decoder_linear_serialize(
     void* context,
     FlipperFormat* flipper_format,
     uint32_t frequency,
     FuriHalSubGhzPreset preset) {
     furi_assert(context);
-    SubGhzProtocolDecoderFirefly* instance = context;
+    SubGhzProtocolDecoderLinear* instance = context;
     return subghz_block_generic_serialize(&instance->generic, flipper_format, frequency, preset);
 }
 
-bool subghz_protocol_decoder_firefly_deserialize(void* context, FlipperFormat* flipper_format) {
+bool subghz_protocol_decoder_linear_deserialize(void* context, FlipperFormat* flipper_format) {
     furi_assert(context);
-    SubGhzProtocolDecoderFirefly* instance = context;
+    SubGhzProtocolDecoderLinear* instance = context;
     return subghz_block_generic_deserialize(&instance->generic, flipper_format);
 }
 
-void subghz_protocol_decoder_firefly_get_string(void* context, string_t output) {
+void subghz_protocol_decoder_linear_get_string(void* context, string_t output) {
     furi_assert(context);
-    SubGhzProtocolDecoderFirefly* instance = context;
+    SubGhzProtocolDecoderLinear* instance = context;
 
     uint32_t code_found_lo = instance->generic.data & 0x00000000ffffffff;
 

lib/subghz/protocols/linear.h

@@ -0,0 +1,109 @@
+#pragma once
+
+#include "base.h"
+
+#define SUBGHZ_PROTOCOL_LINEAR_NAME "Linear"
+
+typedef struct SubGhzProtocolDecoderLinear SubGhzProtocolDecoderLinear;
+typedef struct SubGhzProtocolEncoderLinear SubGhzProtocolEncoderLinear;
+
+extern const SubGhzProtocolDecoder subghz_protocol_linear_decoder;
+extern const SubGhzProtocolEncoder subghz_protocol_linear_encoder;
+extern const SubGhzProtocol subghz_protocol_linear;
+
+/**
+ * Allocate SubGhzProtocolEncoderLinear.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolEncoderLinear* pointer to a SubGhzProtocolEncoderLinear instance
+ */
+void* subghz_protocol_encoder_linear_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolEncoderLinear.
+ * @param context Pointer to a SubGhzProtocolEncoderLinear instance
+ */
+void subghz_protocol_encoder_linear_free(void* context);
+
+/**
+ * Deserialize and generating an upload to send.
+ * @param context Pointer to a SubGhzProtocolEncoderLinear instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return true On success
+ */
+bool subghz_protocol_encoder_linear_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Forced transmission stop.
+ * @param context Pointer to a SubGhzProtocolEncoderLinear instance
+ */
+void subghz_protocol_encoder_linear_stop(void* context);
+
+/**
+ * Getting the level and duration of the upload to be loaded into DMA.
+ * @param context Pointer to a SubGhzProtocolEncoderLinear instance
+ * @return LevelDuration 
+ */
+LevelDuration subghz_protocol_encoder_linear_yield(void* context);
+
+/**
+ * Allocate SubGhzProtocolDecoderLinear.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolDecoderLinear* pointer to a SubGhzProtocolDecoderLinear instance
+ */
+void* subghz_protocol_decoder_linear_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolDecoderLinear.
+ * @param context Pointer to a SubGhzProtocolDecoderLinear instance
+ */
+void subghz_protocol_decoder_linear_free(void* context);
+
+/**
+ * Reset decoder SubGhzProtocolDecoderLinear.
+ * @param context Pointer to a SubGhzProtocolDecoderLinear instance
+ */
+void subghz_protocol_decoder_linear_reset(void* context);
+
+/**
+ * Parse a raw sequence of levels and durations received from the air.
+ * @param context Pointer to a SubGhzProtocolDecoderLinear instance
+ * @param level Signal level true-high false-low
+ * @param duration Duration of this level in, us
+ */
+void subghz_protocol_decoder_linear_feed(void* context, bool level, uint32_t duration);
+
+/**
+ * Getting the hash sum of the last randomly received parcel.
+ * @param context Pointer to a SubGhzProtocolDecoderLinear instance
+ * @return hash Hash sum
+ */
+uint8_t subghz_protocol_decoder_linear_get_hash_data(void* context);
+
+/**
+ * Serialize data SubGhzProtocolDecoderLinear.
+ * @param context Pointer to a SubGhzProtocolDecoderLinear instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @param frequency The frequency at which the signal was received, Hz
+ * @param preset The modulation on which the signal was received, FuriHalSubGhzPreset
+ * @return true On success
+ */
+bool subghz_protocol_decoder_linear_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    uint32_t frequency,
+    FuriHalSubGhzPreset preset);
+
+/**
+ * Deserialize data SubGhzProtocolDecoderLinear.
+ * @param context Pointer to a SubGhzProtocolDecoderLinear instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return true On success
+ */
+bool subghz_protocol_decoder_linear_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Getting a textual representation of the received data.
+ * @param context Pointer to a SubGhzProtocolDecoderLinear instance
+ * @param output Resulting text
+ */
+void subghz_protocol_decoder_linear_get_string(void* context, string_t output);

lib/subghz/protocols/megacode.c

@@ -247,7 +247,7 @@ void subghz_protocol_decoder_megacode_feed(void* context, bool level, uint32_t d
     switch(instance->decoder.parser_step) {
     case MegaCodeDecoderStepReset:
         if((!level) && (DURATION_DIFF(duration, subghz_protocol_megacode_const.te_short * 13) <
-                        subghz_protocol_megacode_const.te_delta * 15)) { //10..16ms
+                        subghz_protocol_megacode_const.te_delta * 17)) { //10..16ms
             //Found header MegaCode
             instance->decoder.parser_step = MegaCodeDecoderStepFoundStartBit;
         }

lib/subghz/protocols/registry.c

@@ -7,8 +7,9 @@ const SubGhzProtocol* subghz_protocol_registry[] = {
     &subghz_protocol_nero_sketch,  &subghz_protocol_ido,        &subghz_protocol_kia,
     &subghz_protocol_hormann,      &subghz_protocol_nero_radio, &subghz_protocol_somfy_telis,
     &subghz_protocol_somfy_keytis, &subghz_protocol_scher_khan, &subghz_protocol_princeton,
-    &subghz_protocol_raw,          &subghz_protocol_firefly,    &subghz_protocol_secplus_v2,
+    &subghz_protocol_raw,          &subghz_protocol_linear,     &subghz_protocol_secplus_v2,
     &subghz_protocol_secplus_v1,   &subghz_protocol_megacode,   &subghz_protocol_holtek,
+    &subghz_protocol_chamb_code,
 
 };
 

lib/subghz/protocols/registry.h

@@ -21,11 +21,12 @@
 #include "scher_khan.h"
 #include "gate_tx.h"
 #include "raw.h"
-#include "firefly.h"
+#include "linear.h"
 #include "secplus_v2.h"
 #include "secplus_v1.h"
 #include "megacode.h"
 #include "holtek.h"
+#include "chamberlain_code.h"
 
 /**
  * Registration by name SubGhzProtocol.