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#include "subghz_protocol_kia.h"
struct SubGhzProtocolKIA {
SubGhzProtocolCommon common;
};
typedef enum {
KIADecoderStepReset = 0,
KIADecoderStepCheckPreambula,
KIADecoderStepSaveDuration,
KIADecoderStepCheckDuration,
} KIADecoderStep;
SubGhzProtocolKIA* subghz_protocol_kia_alloc(void) {
SubGhzProtocolKIA* instance = furi_alloc(sizeof(SubGhzProtocolKIA));
instance->common.name = "KIA";
instance->common.code_min_count_bit_for_found = 60;
instance->common.te_short = 250;
instance->common.te_long = 500;
instance->common.te_delta = 100;
instance->common.type_protocol = SubGhzProtocolCommonTypeDynamic;
instance->common.to_string = (SubGhzProtocolCommonToStr)subghz_protocol_kia_to_str;
instance->common.to_load_protocol =
(SubGhzProtocolCommonLoadFromRAW)subghz_decoder_kia_to_load_protocol;
return instance;
}
void subghz_protocol_kia_free(SubGhzProtocolKIA* instance) {
furi_assert(instance);
free(instance);
}
void subghz_protocol_kia_reset(SubGhzProtocolKIA* instance) {
instance->common.parser_step = KIADecoderStepReset;
}
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 SubGhzProtocolKIA instance
*/
void subghz_protocol_kia_check_remote_controller(SubGhzProtocolKIA* 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->common.serial = (uint32_t)((instance->common.code_last_found >> 12) & 0x0FFFFFFF);
instance->common.btn = (instance->common.code_last_found >> 8) & 0x0F;
instance->common.cnt = (instance->common.code_last_found >> 40) & 0xFFFF;
}
void subghz_protocol_kia_parse(SubGhzProtocolKIA* instance, bool level, uint32_t duration) {
switch(instance->common.parser_step) {
case KIADecoderStepReset:
if((!level) &&
(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta)) {
instance->common.parser_step = KIADecoderStepCheckPreambula;
instance->common.te_last = duration;
instance->common.header_count = 0;
}
break;
case KIADecoderStepCheckPreambula:
if(!level) {
if((DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta) ||
(DURATION_DIFF(duration, instance->common.te_long) < instance->common.te_delta)) {
instance->common.te_last = duration;
} else {
instance->common.parser_step = KIADecoderStepReset;
}
} else if(
(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta) &&
(DURATION_DIFF(instance->common.te_last, instance->common.te_short) <
instance->common.te_delta)) {
// Found header
instance->common.header_count++;
break;
} else if(
(DURATION_DIFF(duration, instance->common.te_long) < instance->common.te_delta) &&
(DURATION_DIFF(instance->common.te_last, instance->common.te_long) <
instance->common.te_delta)) {
// Found start bit
if(instance->common.header_count > 15) {
instance->common.parser_step = KIADecoderStepSaveDuration;
instance->common.code_found = 0;
instance->common.code_count_bit = 1;
subghz_protocol_common_add_bit(&instance->common, 1);
} else {
instance->common.parser_step = KIADecoderStepReset;
}
} else {
instance->common.parser_step = KIADecoderStepReset;
}
break;
case KIADecoderStepSaveDuration:
if(!level) {
if(duration >= (instance->common.te_long + instance->common.te_delta * 2)) {
//Found stop bit
instance->common.parser_step = KIADecoderStepReset;
if(instance->common.code_count_bit >=
instance->common.code_min_count_bit_for_found) {
instance->common.code_last_found = instance->common.code_found;
instance->common.code_last_count_bit = instance->common.code_count_bit;
if(instance->common.callback)
instance->common.callback(
(SubGhzProtocolCommon*)instance, instance->common.context);
}
instance->common.code_found = 0;
instance->common.code_count_bit = 0;
break;
} else {
instance->common.te_last = duration;
instance->common.parser_step = KIADecoderStepCheckDuration;
}
} else {
instance->common.parser_step = KIADecoderStepReset;
}
break;
case KIADecoderStepCheckDuration:
if(level) {
if((DURATION_DIFF(instance->common.te_last, instance->common.te_short) <
instance->common.te_delta) &&
(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta)) {
subghz_protocol_common_add_bit(&instance->common, 0);
instance->common.parser_step = KIADecoderStepSaveDuration;
} else if(
(DURATION_DIFF(instance->common.te_last, instance->common.te_long) <
instance->common.te_delta) &&
(DURATION_DIFF(duration, instance->common.te_long) < instance->common.te_delta)) {
subghz_protocol_common_add_bit(&instance->common, 1);
instance->common.parser_step = KIADecoderStepSaveDuration;
} else {
instance->common.parser_step = KIADecoderStepReset;
}
} else {
instance->common.parser_step = KIADecoderStepReset;
}
break;
}
}
void subghz_protocol_kia_to_str(SubGhzProtocolKIA* instance, string_t output) {
uint32_t code_found_hi = instance->common.code_last_found >> 32;
uint32_t code_found_lo = instance->common.code_last_found & 0x00000000ffffffff;
string_cat_printf(
output,
"%s %dbit\r\n"
"Key:%08lX%08lX\r\n"
"Sn:%07lX Btn:%lX Cnt:%04X\r\n",
instance->common.name,
instance->common.code_last_count_bit,
code_found_hi,
code_found_lo,
instance->common.serial,
instance->common.btn,
instance->common.cnt);
}
void subghz_decoder_kia_to_load_protocol(SubGhzProtocolKIA* instance, void* context) {
furi_assert(context);
furi_assert(instance);
SubGhzProtocolCommonLoad* data = context;
instance->common.code_last_found = data->code_found;
instance->common.code_last_count_bit = data->code_count_bit;
subghz_protocol_kia_check_remote_controller(instance);
}
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