unleashed-firmware/lib/subghz/protocols/ido.c

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#include "ido.h"
#include "../blocks/const.h"
#include "../blocks/decoder.h"
#include "../blocks/encoder.h"
#include "../blocks/generic.h"
#include "../blocks/math.h"
#define TAG "SubGhzProtocolIdo117/111"
static const SubGhzBlockConst subghz_protocol_ido_const = {
.te_short = 450,
.te_long = 1450,
.te_delta = 150,
.min_count_bit_for_found = 48,
};
struct SubGhzProtocolDecoderIDo {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
SubGhzBlockGeneric generic;
};
struct SubGhzProtocolEncoderIDo {
SubGhzProtocolEncoderBase base;
SubGhzProtocolBlockEncoder encoder;
SubGhzBlockGeneric generic;
};
typedef enum {
IDoDecoderStepReset = 0,
IDoDecoderStepFoundPreambula,
IDoDecoderStepSaveDuration,
IDoDecoderStepCheckDuration,
} IDoDecoderStep;
const SubGhzProtocolDecoder subghz_protocol_ido_decoder = {
.alloc = subghz_protocol_decoder_ido_alloc,
.free = subghz_protocol_decoder_ido_free,
.feed = subghz_protocol_decoder_ido_feed,
.reset = subghz_protocol_decoder_ido_reset,
.get_hash_data = subghz_protocol_decoder_ido_get_hash_data,
.deserialize = subghz_protocol_decoder_ido_deserialize,
.serialize = subghz_protocol_decoder_ido_serialize,
.get_string = subghz_protocol_decoder_ido_get_string,
};
const SubGhzProtocolEncoder subghz_protocol_ido_encoder = {
.alloc = NULL,
.free = NULL,
.deserialize = NULL,
.stop = NULL,
.yield = NULL,
};
const SubGhzProtocol subghz_protocol_ido = {
.name = SUBGHZ_PROTOCOL_IDO_NAME,
.type = SubGhzProtocolTypeDynamic,
.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable,
.decoder = &subghz_protocol_ido_decoder,
.encoder = &subghz_protocol_ido_encoder,
};
void* subghz_protocol_decoder_ido_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
SubGhzProtocolDecoderIDo* instance = malloc(sizeof(SubGhzProtocolDecoderIDo));
instance->base.protocol = &subghz_protocol_ido;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void subghz_protocol_decoder_ido_free(void* context) {
furi_assert(context);
SubGhzProtocolDecoderIDo* instance = context;
free(instance);
}
void subghz_protocol_decoder_ido_reset(void* context) {
furi_assert(context);
SubGhzProtocolDecoderIDo* instance = context;
instance->decoder.parser_step = IDoDecoderStepReset;
}
void subghz_protocol_decoder_ido_feed(void* context, bool level, uint32_t duration) {
furi_assert(context);
SubGhzProtocolDecoderIDo* instance = context;
switch(instance->decoder.parser_step) {
case IDoDecoderStepReset:
if((level) && (DURATION_DIFF(duration, subghz_protocol_ido_const.te_short * 10) <
subghz_protocol_ido_const.te_delta * 5)) {
instance->decoder.parser_step = IDoDecoderStepFoundPreambula;
}
break;
case IDoDecoderStepFoundPreambula:
if((!level) && (DURATION_DIFF(duration, subghz_protocol_ido_const.te_short * 10) <
subghz_protocol_ido_const.te_delta * 5)) {
//Found Preambula
instance->decoder.parser_step = IDoDecoderStepSaveDuration;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
} else {
instance->decoder.parser_step = IDoDecoderStepReset;
}
break;
case IDoDecoderStepSaveDuration:
if(level) {
if(duration >= ((uint32_t)subghz_protocol_ido_const.te_short * 5 +
subghz_protocol_ido_const.te_delta)) {
instance->decoder.parser_step = IDoDecoderStepFoundPreambula;
if(instance->decoder.decode_count_bit >=
subghz_protocol_ido_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;
break;
} else {
instance->decoder.te_last = duration;
instance->decoder.parser_step = IDoDecoderStepCheckDuration;
}
} else {
instance->decoder.parser_step = IDoDecoderStepReset;
}
break;
case IDoDecoderStepCheckDuration:
if(!level) {
if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_ido_const.te_short) <
subghz_protocol_ido_const.te_delta) &&
(DURATION_DIFF(duration, subghz_protocol_ido_const.te_long) <
subghz_protocol_ido_const.te_delta * 3)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
instance->decoder.parser_step = IDoDecoderStepSaveDuration;
} else if(
(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_ido_const.te_short) <
subghz_protocol_ido_const.te_delta * 3) &&
(DURATION_DIFF(duration, subghz_protocol_ido_const.te_short) <
subghz_protocol_ido_const.te_delta)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
instance->decoder.parser_step = IDoDecoderStepSaveDuration;
} else {
instance->decoder.parser_step = IDoDecoderStepReset;
}
} else {
instance->decoder.parser_step = IDoDecoderStepReset;
}
break;
}
}
/**
* Analysis of received data
* @param instance Pointer to a SubGhzBlockGeneric* instance
*/
static void subghz_protocol_ido_check_remote_controller(SubGhzBlockGeneric* instance) {
uint64_t code_found_reverse =
subghz_protocol_blocks_reverse_key(instance->data, instance->data_count_bit);
uint32_t code_fix = code_found_reverse & 0xFFFFFF;
instance->serial = code_fix & 0xFFFFF;
instance->btn = (code_fix >> 20) & 0x0F;
}
uint8_t subghz_protocol_decoder_ido_get_hash_data(void* context) {
furi_assert(context);
SubGhzProtocolDecoderIDo* instance = context;
return subghz_protocol_blocks_get_hash_data(
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
}
SubGhzProtocolStatus subghz_protocol_decoder_ido_serialize(
void* context,
FlipperFormat* flipper_format,
SubGhzRadioPreset* preset) {
furi_assert(context);
SubGhzProtocolDecoderIDo* instance = context;
return subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
}
SubGhzProtocolStatus
subghz_protocol_decoder_ido_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
SubGhzProtocolDecoderIDo* instance = context;
return subghz_block_generic_deserialize_check_count_bit(
&instance->generic, flipper_format, subghz_protocol_ido_const.min_count_bit_for_found);
}
void subghz_protocol_decoder_ido_get_string(void* context, FuriString* output) {
furi_assert(context);
SubGhzProtocolDecoderIDo* instance = context;
subghz_protocol_ido_check_remote_controller(&instance->generic);
uint64_t code_found_reverse = subghz_protocol_blocks_reverse_key(
instance->generic.data, instance->generic.data_count_bit);
uint32_t code_fix = code_found_reverse & 0xFFFFFF;
uint32_t code_hop = (code_found_reverse >> 24) & 0xFFFFFF;
furi_string_cat_printf(
output,
"%s %dbit\r\n"
"Key:0x%lX%08lX\r\n"
"Fix:%06lX \r\n"
"Hop:%06lX \r\n"
"Sn:%05lX Btn:%X\r\n",
instance->generic.protocol_name,
instance->generic.data_count_bit,
(uint32_t)(instance->generic.data >> 32),
(uint32_t)instance->generic.data,
code_fix,
code_hop,
instance->generic.serial,
instance->generic.btn);
}