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flipperzero-firmware/lib/subghz/protocols/kia.c
Skorpionm 4da6eba395
[FL-2706, FL-2709] SubGhz: checking saved key files for length (#1485) 
* [FL-2706] SubGhz: checking saved key files for length
* SubGhz: fix RAW file upload error
* [FL-2709] GubGhz: RAW screen fix

Co-authored-by: あく <alleteam@gmail.com>
2022-08-01 21:24:21 +09:00

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C
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#include "kia.h"
#include "../blocks/const.h"
#include "../blocks/decoder.h"
#include "../blocks/encoder.h"
#include "../blocks/generic.h"
#include "../blocks/math.h"
#define TAG "SubGhzProtocoKIA"
static const SubGhzBlockConst subghz_protocol_kia_const = {
.te_short = 250,
.te_long = 500,
.te_delta = 100,
.min_count_bit_for_found = 61,
};
struct SubGhzProtocolDecoderKIA {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
SubGhzBlockGeneric generic;
uint16_t header_count;
};
struct SubGhzProtocolEncoderKIA {
SubGhzProtocolEncoderBase base;
SubGhzProtocolBlockEncoder encoder;
SubGhzBlockGeneric generic;
};
typedef enum {
KIADecoderStepReset = 0,
KIADecoderStepCheckPreambula,
KIADecoderStepSaveDuration,
KIADecoderStepCheckDuration,
} KIADecoderStep;
const SubGhzProtocolDecoder subghz_protocol_kia_decoder = {
.alloc = subghz_protocol_decoder_kia_alloc,
.free = subghz_protocol_decoder_kia_free,
.feed = subghz_protocol_decoder_kia_feed,
.reset = subghz_protocol_decoder_kia_reset,
.get_hash_data = subghz_protocol_decoder_kia_get_hash_data,
.serialize = subghz_protocol_decoder_kia_serialize,
.deserialize = subghz_protocol_decoder_kia_deserialize,
.get_string = subghz_protocol_decoder_kia_get_string,
};
const SubGhzProtocolEncoder subghz_protocol_kia_encoder = {
.alloc = NULL,
.free = NULL,
.deserialize = NULL,
.stop = NULL,
.yield = NULL,
};
const SubGhzProtocol subghz_protocol_kia = {
.name = SUBGHZ_PROTOCOL_KIA_NAME,
.type = SubGhzProtocolTypeDynamic,
.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_FM | SubGhzProtocolFlag_Decodable,
.decoder = &subghz_protocol_kia_decoder,
.encoder = &subghz_protocol_kia_encoder,
};
void* subghz_protocol_decoder_kia_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
SubGhzProtocolDecoderKIA* instance = malloc(sizeof(SubGhzProtocolDecoderKIA));
instance->base.protocol = &subghz_protocol_kia;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void subghz_protocol_decoder_kia_free(void* context) {
furi_assert(context);
SubGhzProtocolDecoderKIA* instance = context;
free(instance);
}
void subghz_protocol_decoder_kia_reset(void* context) {
furi_assert(context);
SubGhzProtocolDecoderKIA* instance = context;
instance->decoder.parser_step = KIADecoderStepReset;
}
void subghz_protocol_decoder_kia_feed(void* context, bool level, uint32_t duration) {
furi_assert(context);
SubGhzProtocolDecoderKIA* instance = context;
switch(instance->decoder.parser_step) {
case KIADecoderStepReset:
if((level) && (DURATION_DIFF(duration, subghz_protocol_kia_const.te_short) <
subghz_protocol_kia_const.te_delta)) {
instance->decoder.parser_step = KIADecoderStepCheckPreambula;
instance->decoder.te_last = duration;
instance->header_count = 0;
}
break;
case KIADecoderStepCheckPreambula:
if(level) {
if((DURATION_DIFF(duration, subghz_protocol_kia_const.te_short) <
subghz_protocol_kia_const.te_delta) ||
(DURATION_DIFF(duration, subghz_protocol_kia_const.te_long) <
subghz_protocol_kia_const.te_delta)) {
instance->decoder.te_last = duration;
} else {
instance->decoder.parser_step = KIADecoderStepReset;
}
} else if(
(DURATION_DIFF(duration, subghz_protocol_kia_const.te_short) <
subghz_protocol_kia_const.te_delta) &&
(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_kia_const.te_short) <
subghz_protocol_kia_const.te_delta)) {
// Found header
instance->header_count++;
break;
} else if(
(DURATION_DIFF(duration, subghz_protocol_kia_const.te_long) <
subghz_protocol_kia_const.te_delta) &&
(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_kia_const.te_long) <
subghz_protocol_kia_const.te_delta)) {
// Found start bit
if(instance->header_count > 15) {
instance->decoder.parser_step = KIADecoderStepSaveDuration;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 1;
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
} else {
instance->decoder.parser_step = KIADecoderStepReset;
}
} else {
instance->decoder.parser_step = KIADecoderStepReset;
}
break;
case KIADecoderStepSaveDuration:
if(level) {
if(duration >=
(uint32_t)(subghz_protocol_kia_const.te_long + subghz_protocol_kia_const.te_delta * 2)) {
//Found stop bit
instance->decoder.parser_step = KIADecoderStepReset;
if(instance->decoder.decode_count_bit ==
subghz_protocol_kia_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 = KIADecoderStepCheckDuration;
}
} else {
instance->decoder.parser_step = KIADecoderStepReset;
}
break;
case KIADecoderStepCheckDuration:
if(!level) {
if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_kia_const.te_short) <
subghz_protocol_kia_const.te_delta) &&
(DURATION_DIFF(duration, subghz_protocol_kia_const.te_short) <
subghz_protocol_kia_const.te_delta)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
instance->decoder.parser_step = KIADecoderStepSaveDuration;
} else if(
(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_kia_const.te_long) <
subghz_protocol_kia_const.te_delta) &&
(DURATION_DIFF(duration, subghz_protocol_kia_const.te_long) <
subghz_protocol_kia_const.te_delta)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
instance->decoder.parser_step = KIADecoderStepSaveDuration;
} else {
instance->decoder.parser_step = KIADecoderStepReset;
}
} else {
instance->decoder.parser_step = KIADecoderStepReset;
}
break;
}
}
uint8_t subghz_protocol_kia_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) ^ 0x7F);
else
crc <<= 1;
}
}
return crc;
}
/**
* Analysis of received data
* @param instance Pointer to a SubGhzBlockGeneric* instance
*/
static void subghz_protocol_kia_check_remote_controller(SubGhzBlockGeneric* instance) {
/*
* 0x0F 0112 43B04EC 1 7D
* 0x0F 0113 43B04EC 1 DF
* 0x0F 0114 43B04EC 1 30
* 0x0F 0115 43B04EC 2 13
* 0x0F 0116 43B04EC 3 F5
* CNT Serial K CRC8 Kia (CRC8, poly 0x7f, start_crc 0x08)
*/
instance->serial = (uint32_t)((instance->data >> 12) & 0x0FFFFFFF);
instance->btn = (instance->data >> 8) & 0x0F;
instance->cnt = (instance->data >> 40) & 0xFFFF;
}
uint8_t subghz_protocol_decoder_kia_get_hash_data(void* context) {
furi_assert(context);
SubGhzProtocolDecoderKIA* instance = context;
return subghz_protocol_blocks_get_hash_data(
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
}
bool subghz_protocol_decoder_kia_serialize(
void* context,
FlipperFormat* flipper_format,
SubGhzPresetDefinition* preset) {
furi_assert(context);
SubGhzProtocolDecoderKIA* instance = context;
return subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
}
bool subghz_protocol_decoder_kia_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
SubGhzProtocolDecoderKIA* instance = context;
bool ret = false;
do {
if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
break;
}
if(instance->generic.data_count_bit != subghz_protocol_kia_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_kia_get_string(void* context, string_t output) {
furi_assert(context);
SubGhzProtocolDecoderKIA* instance = context;
subghz_protocol_kia_check_remote_controller(&instance->generic);
uint32_t code_found_hi = instance->generic.data >> 32;
uint32_t code_found_lo = instance->generic.data & 0x00000000ffffffff;
string_cat_printf(
output,
"%s %dbit\r\n"
"Key:%08lX%08lX\r\n"
"Sn:%07lX Btn:%lX Cnt:%04X\r\n",
instance->generic.protocol_name,
instance->generic.data_count_bit,
code_found_hi,
code_found_lo,
instance->generic.serial,
instance->generic.btn,
instance->generic.cnt);
}
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