diff options
Diffstat (limited to 'lib/subghz/protocols/marantec.c')
| -rw-r--r-- | lib/subghz/protocols/marantec.c | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/lib/subghz/protocols/marantec.c b/lib/subghz/protocols/marantec.c new file mode 100644 index 00000000..d4692724 --- /dev/null +++ b/lib/subghz/protocols/marantec.c @@ -0,0 +1,393 @@ +#include "marantec.h" +#include <lib/toolbox/manchester_decoder.h> +#include <lib/toolbox/manchester_encoder.h> +#include "../blocks/const.h" +#include "../blocks/decoder.h" +#include "../blocks/encoder.h" +#include "../blocks/generic.h" +#include "../blocks/math.h" + +#define TAG "SubGhzProtocolMarantec" + +static const SubGhzBlockConst subghz_protocol_marantec_const = { + .te_short = 1000, + .te_long = 2000, + .te_delta = 200, + .min_count_bit_for_found = 49, +}; + +struct SubGhzProtocolDecoderMarantec { + SubGhzProtocolDecoderBase base; + + SubGhzBlockDecoder decoder; + SubGhzBlockGeneric generic; + ManchesterState manchester_saved_state; + uint16_t header_count; +}; + +struct SubGhzProtocolEncoderMarantec { + SubGhzProtocolEncoderBase base; + + SubGhzProtocolBlockEncoder encoder; + SubGhzBlockGeneric generic; +}; + +typedef enum { + MarantecDecoderStepReset = 0, + MarantecDecoderFoundHeader, + MarantecDecoderStepDecoderData, +} MarantecDecoderStep; + +const SubGhzProtocolDecoder subghz_protocol_marantec_decoder = { + .alloc = subghz_protocol_decoder_marantec_alloc, + .free = subghz_protocol_decoder_marantec_free, + + .feed = subghz_protocol_decoder_marantec_feed, + .reset = subghz_protocol_decoder_marantec_reset, + + .get_hash_data = subghz_protocol_decoder_marantec_get_hash_data, + .serialize = subghz_protocol_decoder_marantec_serialize, + .deserialize = subghz_protocol_decoder_marantec_deserialize, + .get_string = subghz_protocol_decoder_marantec_get_string, +}; + +const SubGhzProtocolEncoder subghz_protocol_marantec_encoder = { + .alloc = subghz_protocol_encoder_marantec_alloc, + .free = subghz_protocol_encoder_marantec_free, + + .deserialize = subghz_protocol_encoder_marantec_deserialize, + .stop = subghz_protocol_encoder_marantec_stop, + .yield = subghz_protocol_encoder_marantec_yield, +}; + +const SubGhzProtocol subghz_protocol_marantec = { + .name = SUBGHZ_PROTOCOL_MARANTEC_NAME, + .type = SubGhzProtocolTypeStatic, + .flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable | + SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send, + + .decoder = &subghz_protocol_marantec_decoder, + .encoder = &subghz_protocol_marantec_encoder, +}; + +void* subghz_protocol_encoder_marantec_alloc(SubGhzEnvironment* environment) { + UNUSED(environment); + SubGhzProtocolEncoderMarantec* instance = malloc(sizeof(SubGhzProtocolEncoderMarantec)); + + instance->base.protocol = &subghz_protocol_marantec; + instance->generic.protocol_name = instance->base.protocol->name; + + instance->encoder.repeat = 10; + instance->encoder.size_upload = 256; + instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration)); + instance->encoder.is_runing = false; + return instance; +} + +void subghz_protocol_encoder_marantec_free(void* context) { + furi_assert(context); + SubGhzProtocolEncoderMarantec* instance = context; + free(instance->encoder.upload); + free(instance); +} + +static LevelDuration + subghz_protocol_encoder_marantec_add_duration_to_upload(ManchesterEncoderResult result) { + LevelDuration data = {.duration = 0, .level = 0}; + switch(result) { + case ManchesterEncoderResultShortLow: + data.duration = subghz_protocol_marantec_const.te_short; + data.level = false; + break; + case ManchesterEncoderResultLongLow: + data.duration = subghz_protocol_marantec_const.te_long; + data.level = false; + break; + case ManchesterEncoderResultLongHigh: + data.duration = subghz_protocol_marantec_const.te_long; + data.level = true; + break; + case ManchesterEncoderResultShortHigh: + data.duration = subghz_protocol_marantec_const.te_short; + data.level = true; + break; + + default: + furi_crash("SubGhz: ManchesterEncoderResult is incorrect."); + break; + } + return level_duration_make(data.level, data.duration); +} + +/** + * Generating an upload from data. + * @param instance Pointer to a SubGhzProtocolEncoderMarantec instance + */ +static void subghz_protocol_encoder_marantec_get_upload(SubGhzProtocolEncoderMarantec* instance) { + furi_assert(instance); + size_t index = 0; + + ManchesterEncoderState enc_state; + manchester_encoder_reset(&enc_state); + ManchesterEncoderResult result; + + if(!manchester_encoder_advance( + &enc_state, + bit_read(instance->generic.data, instance->generic.data_count_bit - 1), + &result)) { + instance->encoder.upload[index++] = + subghz_protocol_encoder_marantec_add_duration_to_upload(result); + manchester_encoder_advance( + &enc_state, + bit_read(instance->generic.data, instance->generic.data_count_bit - 1), + &result); + } + instance->encoder.upload[index++] = + level_duration_make(false, (uint32_t)subghz_protocol_marantec_const.te_long * 5); + + for(uint8_t i = instance->generic.data_count_bit - 1; i > 0; i--) { + if(!manchester_encoder_advance( + &enc_state, bit_read(instance->generic.data, i - 1), &result)) { + instance->encoder.upload[index++] = + subghz_protocol_encoder_marantec_add_duration_to_upload(result); + manchester_encoder_advance( + &enc_state, bit_read(instance->generic.data, i - 1), &result); + } + instance->encoder.upload[index++] = + subghz_protocol_encoder_marantec_add_duration_to_upload(result); + } + instance->encoder.upload[index] = subghz_protocol_encoder_marantec_add_duration_to_upload( + manchester_encoder_finish(&enc_state)); + if(level_duration_get_level(instance->encoder.upload[index])) { + index++; + } + instance->encoder.size_upload = index; +} + +uint8_t subghz_protocol_marantec_crc8(uint8_t* data, size_t len) { + uint8_t crc = 0x08; + size_t i, j; + for(i = 0; i < len; i++) { + crc ^= data[i]; + for(j = 0; j < 8; j++) { + if((crc & 0x80) != 0) + crc = (uint8_t)((crc << 1) ^ 0x1D); + else + crc <<= 1; + } + } + return crc; +} + +/** + * Analysis of received data + * @param instance Pointer to a SubGhzBlockGeneric* instance + */ +static void subghz_protocol_marantec_remote_controller(SubGhzBlockGeneric* instance) { + instance->btn = (instance->data >> 16) & 0xF; + instance->serial = ((instance->data >> 12) & 0xFFFFFF00) | ((instance->data >> 8) & 0xFF); +} + +bool subghz_protocol_encoder_marantec_deserialize(void* context, FlipperFormat* flipper_format) { + furi_assert(context); + SubGhzProtocolEncoderMarantec* instance = context; + bool res = false; + do { + if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) { + FURI_LOG_E(TAG, "Deserialize error"); + break; + } + if(instance->generic.data_count_bit != + subghz_protocol_marantec_const.min_count_bit_for_found) { + FURI_LOG_E(TAG, "Wrong number of bits in key"); + break; + } + //optional parameter parameter + flipper_format_read_uint32( + flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1); + + subghz_protocol_marantec_remote_controller(&instance->generic); + subghz_protocol_encoder_marantec_get_upload(instance); + instance->encoder.is_runing = true; + + res = true; + } while(false); + + return res; +} + +void subghz_protocol_encoder_marantec_stop(void* context) { + SubGhzProtocolEncoderMarantec* instance = context; + instance->encoder.is_runing = false; +} + +LevelDuration subghz_protocol_encoder_marantec_yield(void* context) { + SubGhzProtocolEncoderMarantec* 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_marantec_alloc(SubGhzEnvironment* environment) { + UNUSED(environment); + SubGhzProtocolDecoderMarantec* instance = malloc(sizeof(SubGhzProtocolDecoderMarantec)); + instance->base.protocol = &subghz_protocol_marantec; + instance->generic.protocol_name = instance->base.protocol->name; + return instance; +} + +void subghz_protocol_decoder_marantec_free(void* context) { + furi_assert(context); + SubGhzProtocolDecoderMarantec* instance = context; + free(instance); +} + +void subghz_protocol_decoder_marantec_reset(void* context) { + furi_assert(context); + SubGhzProtocolDecoderMarantec* instance = context; + manchester_advance( + instance->manchester_saved_state, + ManchesterEventReset, + &instance->manchester_saved_state, + NULL); +} + +void subghz_protocol_decoder_marantec_feed(void* context, bool level, volatile uint32_t duration) { + furi_assert(context); + SubGhzProtocolDecoderMarantec* instance = context; + ManchesterEvent event = ManchesterEventReset; + + switch(instance->decoder.parser_step) { + case MarantecDecoderStepReset: + if((!level) && (DURATION_DIFF(duration, subghz_protocol_marantec_const.te_long * 5) < + subghz_protocol_marantec_const.te_delta * 8)) { + //Found header marantec + instance->decoder.parser_step = MarantecDecoderStepDecoderData; + instance->decoder.decode_data = 1; + instance->decoder.decode_count_bit = 1; + manchester_advance( + instance->manchester_saved_state, + ManchesterEventReset, + &instance->manchester_saved_state, + NULL); + } + break; + case MarantecDecoderStepDecoderData: + if(!level) { + if(DURATION_DIFF(duration, subghz_protocol_marantec_const.te_short) < + subghz_protocol_marantec_const.te_delta) { + event = ManchesterEventShortLow; + } else if( + DURATION_DIFF(duration, subghz_protocol_marantec_const.te_long) < + subghz_protocol_marantec_const.te_delta) { + event = ManchesterEventLongLow; + } else if( + duration >= ((uint32_t)subghz_protocol_marantec_const.te_long * 2 + + subghz_protocol_marantec_const.te_delta)) { + if(instance->decoder.decode_count_bit == + subghz_protocol_marantec_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 = 1; + instance->decoder.decode_count_bit = 1; + manchester_advance( + instance->manchester_saved_state, + ManchesterEventReset, + &instance->manchester_saved_state, + NULL); + } else { + instance->decoder.parser_step = MarantecDecoderStepReset; + } + } else { + if(DURATION_DIFF(duration, subghz_protocol_marantec_const.te_short) < + subghz_protocol_marantec_const.te_delta) { + event = ManchesterEventShortHigh; + } else if( + DURATION_DIFF(duration, subghz_protocol_marantec_const.te_long) < + subghz_protocol_marantec_const.te_delta) { + event = ManchesterEventLongHigh; + } else { + instance->decoder.parser_step = MarantecDecoderStepReset; + } + } + if(event != ManchesterEventReset) { + bool data; + bool data_ok = manchester_advance( + instance->manchester_saved_state, event, &instance->manchester_saved_state, &data); + + if(data_ok) { + instance->decoder.decode_data = (instance->decoder.decode_data << 1) | data; + instance->decoder.decode_count_bit++; + } + } + break; + } +} + +uint8_t subghz_protocol_decoder_marantec_get_hash_data(void* context) { + furi_assert(context); + SubGhzProtocolDecoderMarantec* instance = context; + return subghz_protocol_blocks_get_hash_data( + &instance->decoder, (instance->decoder.decode_count_bit / 8) + 1); +} + +bool subghz_protocol_decoder_marantec_serialize( + void* context, + FlipperFormat* flipper_format, + SubGhzPresetDefinition* preset) { + furi_assert(context); + SubGhzProtocolDecoderMarantec* instance = context; + return subghz_block_generic_serialize(&instance->generic, flipper_format, preset); +} + +bool subghz_protocol_decoder_marantec_deserialize(void* context, FlipperFormat* flipper_format) { + furi_assert(context); + SubGhzProtocolDecoderMarantec* instance = context; + bool ret = false; + do { + if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) { + break; + } + if(instance->generic.data_count_bit != + subghz_protocol_marantec_const.min_count_bit_for_found) { + FURI_LOG_E(TAG, "Wrong number of bits in key"); + break; + } + ret = true; + } while(false); + return ret; +} + +void subghz_protocol_decoder_marantec_get_string(void* context, string_t output) { + furi_assert(context); + SubGhzProtocolDecoderMarantec* instance = context; + subghz_protocol_marantec_remote_controller(&instance->generic); + + string_cat_printf( + output, + "%s %db\r\n" + "Key:0x%lX%08lX\r\n" + "Sn:0x%07lX \r\n" + "Btn:%lX\r\n", + instance->generic.protocol_name, + instance->generic.data_count_bit, + (uint32_t)(instance->generic.data >> 32), + (uint32_t)(instance->generic.data & 0xFFFFFFFF), + instance->generic.serial, + instance->generic.btn); +} |