Files
ProtoPirate/protocols/scher_khan.c
T
0mega 62b31bfe95 More Memory optimizations and new protocols
- Split RX registries into more plugins: AM, AM VAG, FM, FM F4, and FM Honda1
- Add per-protocol TX plugins so emulation loads only the selected encoder
- Sub Decode (enabled by default) and Timing Tuner as plugins
- Max history increased to 20 signals
- Fix Sub Decode and simplified UI
- Add Check Saved setting ported from dexter_pester PR !
- Fix Fiat V1 decoder and add HITAG2 key TX support
- Add Renault V0, Fiat V2, Honda V2, Ford V3 (& US variant) Thanks Ash

Sorry this is a lot at once x)
2026-06-30 21:28:26 +02:00

368 lines
13 KiB
C

#include "scher_khan.h"
#include "../protopirate_app_i.h"
#include "protocols_common.h"
//https://phreakerclub.com/72
//https://phreakerclub.com/forum/showthread.php?t=7&page=2
//https://phreakerclub.com/forum/showthread.php?t=274&highlight=magicar
//!!! https://phreakerclub.com/forum/showthread.php?t=489&highlight=magicar&page=5
#define TAG "SubGhzProtocolScherKhan"
static const SubGhzBlockConst subghz_protocol_scher_khan_const = {
.te_short = 750,
.te_long = 1100,
.te_delta = 160,
.min_count_bit_for_found = 35,
};
struct SubGhzProtocolDecoderScherKhan {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
SubGhzBlockGeneric generic;
uint16_t header_count;
const char* protocol_name;
};
typedef enum {
ScherKhanDecoderStepReset = 0,
ScherKhanDecoderStepCheckPreambula,
ScherKhanDecoderStepSaveDuration,
ScherKhanDecoderStepCheckDuration,
} ScherKhanDecoderStep;
const SubGhzProtocolDecoder subghz_protocol_scher_khan_decoder = {
.alloc = subghz_protocol_decoder_scher_khan_alloc,
.free = pp_decoder_free_default,
.feed = subghz_protocol_decoder_scher_khan_feed,
.reset = subghz_protocol_decoder_scher_khan_reset,
.get_hash_data = pp_decoder_hash_blocks,
.serialize = subghz_protocol_decoder_scher_khan_serialize,
.deserialize = subghz_protocol_decoder_scher_khan_deserialize,
.get_string = subghz_protocol_decoder_scher_khan_get_string,
};
const SubGhzProtocolEncoder subghz_protocol_scher_khan_encoder = {
.alloc = NULL,
.free = NULL,
.deserialize = NULL,
.stop = NULL,
.yield = NULL,
};
const SubGhzProtocol subghz_protocol_scher_khan = {
.name = SUBGHZ_PROTOCOL_SCHER_KHAN_NAME,
.type = SubGhzProtocolTypeDynamic,
.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_FM | SubGhzProtocolFlag_Decodable,
#if PROTOPIRATE_WITH_DECODER
.decoder = &subghz_protocol_scher_khan_decoder,
#else
.decoder = NULL,
#endif
#if PROTOPIRATE_WITH_ENCODER
.encoder = &subghz_protocol_scher_khan_encoder,
#else
.encoder = NULL,
#endif
};
void* subghz_protocol_decoder_scher_khan_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
SubGhzProtocolDecoderScherKhan* instance = calloc(1, sizeof(SubGhzProtocolDecoderScherKhan));
if(!instance) {
return NULL;
}
instance->base.protocol = &subghz_protocol_scher_khan;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void subghz_protocol_decoder_scher_khan_reset(void* context) {
furi_check(context);
SubGhzProtocolDecoderScherKhan* instance = context;
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
void subghz_protocol_decoder_scher_khan_feed(void* context, bool level, uint32_t duration) {
furi_check(context);
SubGhzProtocolDecoderScherKhan* instance = context;
switch(instance->decoder.parser_step) {
case ScherKhanDecoderStepReset:
if((level) && (DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short * 2) <
subghz_protocol_scher_khan_const.te_delta)) {
instance->decoder.parser_step = ScherKhanDecoderStepCheckPreambula;
instance->decoder.te_last = duration;
instance->header_count = 0;
}
break;
case ScherKhanDecoderStepCheckPreambula:
if(level) {
if((DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short * 2) <
subghz_protocol_scher_khan_const.te_delta) ||
(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short) <
subghz_protocol_scher_khan_const.te_delta)) {
instance->decoder.te_last = duration;
} else {
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
} else if(
(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short * 2) <
subghz_protocol_scher_khan_const.te_delta) ||
(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short) <
subghz_protocol_scher_khan_const.te_delta)) {
if(DURATION_DIFF(
instance->decoder.te_last, subghz_protocol_scher_khan_const.te_short * 2) <
subghz_protocol_scher_khan_const.te_delta) {
// Found header
instance->header_count++;
break;
} else if(
DURATION_DIFF(
instance->decoder.te_last, subghz_protocol_scher_khan_const.te_short) <
subghz_protocol_scher_khan_const.te_delta) {
// Found start bit
if(instance->header_count >= 2) {
instance->decoder.parser_step = ScherKhanDecoderStepSaveDuration;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 1;
} else {
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
} else {
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
} else {
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
break;
case ScherKhanDecoderStepSaveDuration:
if(level) {
if(duration >= (subghz_protocol_scher_khan_const.te_delta * 2UL +
subghz_protocol_scher_khan_const.te_long)) {
//Found stop bit
instance->decoder.parser_step = ScherKhanDecoderStepReset;
if(instance->decoder.decode_count_bit >=
subghz_protocol_scher_khan_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 = ScherKhanDecoderStepCheckDuration;
}
} else {
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
break;
case ScherKhanDecoderStepCheckDuration:
if(!level) {
if((DURATION_DIFF(
instance->decoder.te_last, subghz_protocol_scher_khan_const.te_short) <
subghz_protocol_scher_khan_const.te_delta) &&
(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short) <
subghz_protocol_scher_khan_const.te_delta)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
instance->decoder.parser_step = ScherKhanDecoderStepSaveDuration;
} else if(
(DURATION_DIFF(
instance->decoder.te_last, subghz_protocol_scher_khan_const.te_long) <
subghz_protocol_scher_khan_const.te_delta) &&
(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_long) <
subghz_protocol_scher_khan_const.te_delta)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
instance->decoder.parser_step = ScherKhanDecoderStepSaveDuration;
} else {
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
} else {
instance->decoder.parser_step = ScherKhanDecoderStepReset;
}
break;
}
}
/**
* Analysis of received data
* @param instance Pointer to a SubGhzBlockGeneric* instance
* @param protocol_name
*/
static void subghz_protocol_scher_khan_check_remote_controller(
SubGhzBlockGeneric* instance,
const char** protocol_name) {
/*
* MAGICAR 51 bit 00000001A99121DE83C3 MAGIC CODE, Dynamic
* 0E8C1619E830C -> 000011101000110000010110 0001 1001 1110 1000001100001100
* 0E8C1629D830D -> 000011101000110000010110 0010 1001 1101 1000001100001101
* 0E8C1649B830E -> 000011101000110000010110 0100 1001 1011 1000001100001110
* 0E8C16897830F -> 000011101000110000010110 1000 1001 0111 1000001100001111
* Serial Key Ser ~Key CNT
*/
switch(instance->data_count_bit) {
case 35: //MAGIC CODE, Static
*protocol_name = "MAGIC CODE, Static";
instance->serial = 0;
instance->btn = 0;
instance->cnt = 0;
break;
case 51: //MAGIC CODE, Dynamic
*protocol_name = "MAGIC CODE, Dynamic";
instance->serial = ((instance->data >> 24) & 0xFFFFFF0) | ((instance->data >> 20) & 0x0F);
instance->btn = (instance->data >> 24) & 0x0F;
instance->cnt = instance->data & 0xFFFF;
break;
case 57: //MAGIC CODE PRO / PRO2
*protocol_name = "MAGIC CODE PRO/PRO2";
instance->serial = 0;
instance->btn = 0;
instance->cnt = 0;
break;
case 63: //MAGIC CODE, Dynamic Response
*protocol_name = "MAGIC CODE, Response";
instance->serial = 0;
instance->btn = 0;
instance->cnt = 0;
break;
case 64: //MAGICAR, Response ???
*protocol_name = "MAGICAR, Response";
instance->serial = 0;
instance->btn = 0;
instance->cnt = 0;
break;
case 81: // MAGIC CODE PRO / PRO2 Response ???
case 82: // MAGIC CODE PRO / PRO2 Response ???
*protocol_name = "MAGIC CODE PRO,\n Response";
instance->serial = 0;
instance->btn = 0;
instance->cnt = 0;
break;
default:
*protocol_name = "Unknown";
instance->serial = 0;
instance->btn = 0;
instance->cnt = 0;
break;
}
}
SubGhzProtocolStatus subghz_protocol_decoder_scher_khan_serialize(
void* context,
FlipperFormat* flipper_format,
SubGhzRadioPreset* preset) {
furi_check(context);
SubGhzProtocolDecoderScherKhan* instance = context;
SubGhzProtocolStatus ret = SubGhzProtocolStatusError;
do {
if(preset != NULL) {
if(!flipper_format_insert_or_update_uint32(
flipper_format, FF_FREQUENCY, &preset->frequency, 1)) {
break;
}
const char* preset_name = furi_string_get_cstr(preset->name);
const char* short_preset = pp_get_short_preset_name(preset_name);
if(!flipper_format_insert_or_update_string_cstr(
flipper_format, FF_PRESET, short_preset)) {
break;
}
}
if(!flipper_format_insert_or_update_string_cstr(
flipper_format, FF_PROTOCOL, instance->generic.protocol_name)) {
break;
}
uint32_t bits = instance->generic.data_count_bit;
if(!flipper_format_insert_or_update_uint32(flipper_format, FF_BIT, &bits, 1)) {
break;
}
char key_str[20];
snprintf(key_str, sizeof(key_str), "%016llX", instance->generic.data);
if(!flipper_format_insert_or_update_string_cstr(flipper_format, FF_KEY, key_str)) {
break;
}
if(!flipper_format_insert_or_update_uint32(
flipper_format, FF_SERIAL, &instance->generic.serial, 1)) {
break;
}
uint32_t temp = instance->generic.btn;
if(!flipper_format_insert_or_update_uint32(flipper_format, FF_BTN, &temp, 1)) {
break;
}
if(!flipper_format_insert_or_update_uint32(
flipper_format, FF_CNT, &instance->generic.cnt, 1)) {
break;
}
ret = SubGhzProtocolStatusOk;
} while(false);
return ret;
}
SubGhzProtocolStatus
subghz_protocol_decoder_scher_khan_deserialize(void* context, FlipperFormat* flipper_format) {
furi_check(context);
SubGhzProtocolDecoderScherKhan* instance = context;
SubGhzProtocolStatus status =
subghz_block_generic_deserialize(&instance->generic, flipper_format);
if(status != SubGhzProtocolStatusOk) {
return status;
}
if(instance->generic.data_count_bit <
subghz_protocol_scher_khan_const.min_count_bit_for_found ||
instance->generic.data_count_bit > 64U) {
return SubGhzProtocolStatusErrorValueBitCount;
}
return status;
}
void subghz_protocol_decoder_scher_khan_get_string(void* context, FuriString* output) {
furi_check(context);
SubGhzProtocolDecoderScherKhan* instance = context;
subghz_protocol_scher_khan_check_remote_controller(
&instance->generic, &instance->protocol_name);
furi_string_cat_printf(
output,
"%s %dbit\r\n"
"Key:0x%lX%08lX\r\n"
"Sn:%07lX Btn:%X\r\n"
"Cntr:%04lX\r\n"
"Pt: %s\r\n",
instance->generic.protocol_name,
instance->generic.data_count_bit,
(uint32_t)(instance->generic.data >> 32),
(uint32_t)instance->generic.data,
instance->generic.serial,
instance->generic.btn,
instance->generic.cnt,
instance->protocol_name);
}