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unleashed-firmware/lib/subghz/protocols/somfy_telis.c
Skorpionm 3164184bbc
[FL-2230] SubGhz: protocol API refactoring (#969) 
* SubGhz: protocols library refactoring
* SubGhz: new architecture and refactoring
* SubGhz: simplify protocol structure, remove unused types
* SubGhz: rename Subghz to SubGhz
* SubGhz: add environment concept

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
2022-03-03 12:48:56 +03:00

367 lines
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C
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#include "somfy_telis.h"
#include <lib/toolbox/manchester_decoder.h>
#include "../blocks/const.h"
#include "../blocks/decoder.h"
#include "../blocks/encoder.h"
#include "../blocks/generic.h"
#include "../blocks/math.h"
#define TAG "SubGhzProtocolSomfyTelis"
static const SubGhzBlockConst subghz_protocol_somfy_telis_const = {
.te_short = 640,
.te_long = 1280,
.te_delta = 250,
.min_count_bit_for_found = 56,
};
struct SubGhzProtocolDecoderSomfyTelis {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
SubGhzBlockGeneric generic;
uint16_t header_count;
ManchesterState manchester_saved_state;
};
struct SubGhzProtocolEncoderSomfyTelis {
SubGhzProtocolEncoderBase base;
SubGhzProtocolBlockEncoder encoder;
SubGhzBlockGeneric generic;
};
typedef enum {
SomfyTelisDecoderStepReset = 0,
SomfyTelisDecoderStepCheckPreambula,
SomfyTelisDecoderStepFoundPreambula,
SomfyTelisDecoderStepStartDecode,
SomfyTelisDecoderStepDecoderData,
} SomfyTelisDecoderStep;
const SubGhzProtocolDecoder subghz_protocol_somfy_telis_decoder = {
.alloc = subghz_protocol_decoder_somfy_telis_alloc,
.free = subghz_protocol_decoder_somfy_telis_free,
.feed = subghz_protocol_decoder_somfy_telis_feed,
.reset = subghz_protocol_decoder_somfy_telis_reset,
.get_hash_data = subghz_protocol_decoder_somfy_telis_get_hash_data,
.serialize = subghz_protocol_decoder_somfy_telis_serialize,
.deserialize = subghz_protocol_decoder_somfy_telis_deserialize,
.get_string = subghz_protocol_decoder_somfy_telis_get_string,
};
const SubGhzProtocolEncoder subghz_protocol_somfy_telis_encoder = {
.alloc = NULL,
.free = NULL,
.deserialize = NULL,
.stop = NULL,
.yield = NULL,
};
const SubGhzProtocol subghz_protocol_somfy_telis = {
.name = SUBGHZ_PROTOCOL_SOMFY_TELIS_NAME,
.type = SubGhzProtocolTypeDynamic,
.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_868 | SubGhzProtocolFlag_AM |
SubGhzProtocolFlag_Decodable,
.decoder = &subghz_protocol_somfy_telis_decoder,
.encoder = &subghz_protocol_somfy_telis_encoder,
};
void* subghz_protocol_decoder_somfy_telis_alloc(SubGhzEnvironment* environment) {
SubGhzProtocolDecoderSomfyTelis* instance = malloc(sizeof(SubGhzProtocolDecoderSomfyTelis));
instance->base.protocol = &subghz_protocol_somfy_telis;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void subghz_protocol_decoder_somfy_telis_free(void* context) {
furi_assert(context);
SubGhzProtocolDecoderSomfyTelis* instance = context;
free(instance);
}
void subghz_protocol_decoder_somfy_telis_reset(void* context) {
furi_assert(context);
SubGhzProtocolDecoderSomfyTelis* instance = context;
instance->decoder.parser_step = SomfyTelisDecoderStepReset;
manchester_advance(
instance->manchester_saved_state,
ManchesterEventReset,
&instance->manchester_saved_state,
NULL);
}
static uint8_t subghz_protocol_somfy_telis_crc(uint64_t data) {
uint8_t crc = 0;
data &= 0xFFF0FFFFFFFFFF;
for(uint8_t i = 0; i < 56; i += 8) {
crc = crc ^ data >> i ^ (data >> (i + 4));
}
return crc & 0xf;
}
void subghz_protocol_decoder_somfy_telis_feed(void* context, bool level, uint32_t duration) {
furi_assert(context);
SubGhzProtocolDecoderSomfyTelis* instance = context;
ManchesterEvent event = ManchesterEventReset;
switch(instance->decoder.parser_step) {
case SomfyTelisDecoderStepReset:
if((level) && DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_short * 4) <
subghz_protocol_somfy_telis_const.te_delta * 4) {
instance->decoder.parser_step = SomfyTelisDecoderStepFoundPreambula;
instance->header_count++;
}
break;
case SomfyTelisDecoderStepFoundPreambula:
if((!level) && (DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_short * 4) <
subghz_protocol_somfy_telis_const.te_delta * 4)) {
instance->decoder.parser_step = SomfyTelisDecoderStepCheckPreambula;
} else {
instance->header_count = 0;
instance->decoder.parser_step = SomfyTelisDecoderStepReset;
}
break;
case SomfyTelisDecoderStepCheckPreambula:
if(level) {
if(DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_short * 4) <
subghz_protocol_somfy_telis_const.te_delta * 4) {
instance->decoder.parser_step = SomfyTelisDecoderStepFoundPreambula;
instance->header_count++;
} else if(
(instance->header_count > 1) &&
(DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_short * 7) <
subghz_protocol_somfy_telis_const.te_delta * 4)) {
instance->decoder.parser_step = SomfyTelisDecoderStepDecoderData;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
instance->header_count = 0;
manchester_advance(
instance->manchester_saved_state,
ManchesterEventReset,
&instance->manchester_saved_state,
NULL);
manchester_advance(
instance->manchester_saved_state,
ManchesterEventLongHigh,
&instance->manchester_saved_state,
NULL);
}
}
break;
case SomfyTelisDecoderStepDecoderData:
if(!level) {
if(DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_short) <
subghz_protocol_somfy_telis_const.te_delta) {
event = ManchesterEventShortLow;
} else if(
DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_long) <
subghz_protocol_somfy_telis_const.te_delta) {
event = ManchesterEventLongLow;
} else if(
duration >= (subghz_protocol_somfy_telis_const.te_long +
subghz_protocol_somfy_telis_const.te_delta)) {
if(instance->decoder.decode_count_bit ==
subghz_protocol_somfy_telis_const.min_count_bit_for_found) {
//check crc
uint64_t data_tmp = instance->decoder.decode_data ^
(instance->decoder.decode_data >> 8);
if(((data_tmp >> 40) & 0xF) == subghz_protocol_somfy_telis_crc(data_tmp)) {
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;
manchester_advance(
instance->manchester_saved_state,
ManchesterEventReset,
&instance->manchester_saved_state,
NULL);
manchester_advance(
instance->manchester_saved_state,
ManchesterEventLongHigh,
&instance->manchester_saved_state,
NULL);
instance->decoder.parser_step = SomfyTelisDecoderStepReset;
} else {
instance->decoder.parser_step = SomfyTelisDecoderStepReset;
}
} else {
if(DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_short) <
subghz_protocol_somfy_telis_const.te_delta) {
event = ManchesterEventShortHigh;
} else if(
DURATION_DIFF(duration, subghz_protocol_somfy_telis_const.te_long) <
subghz_protocol_somfy_telis_const.te_delta) {
event = ManchesterEventLongHigh;
} else {
instance->decoder.parser_step = SomfyTelisDecoderStepReset;
}
}
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;
}
}
/** Analysis of received data
*
* @param instance SubGhzProtocolSomfyTelis instance
*/
static void subghz_protocol_somfy_telis_check_remote_controller(SubGhzBlockGeneric* instance) {
//https://pushstack.wordpress.com/somfy-rts-protocol/
/*
* 604 us
* /
* | 2416us | 2416us | 2416us | 2416us | 4550 us | | 67648 us | 30415 us |
*
* +--------+ +--------+ +---...---+
* + +--------+ +--------+ +--+XXXX...XXX+-----...-----
*
* | hw. sync. | soft. | | Inter-frame
* | | sync. | data | gap
*
*
* encrypt | decrypt
*
* package 56 bit cnt key btn|crc cnt serial
* 0xA7232323312222 - 0 => A7 8 0 | 00 00 | 12 13 00
* 0xA7222223312222 - 1 => A7 8 5 | 00 01 | 12 13 00
* 0xA7212123312222 - 2 => A7 8 6 | 00 02 | 12 13 00
*
* Key: “Encryption Key”, Most significant 4-bit are always 0xA, Least Significant bits is
* a linear counter. In the Smoove Origin this counter is increased together with the
* rolling code. But leaving this on a constant value also works. Gerardwr notes that
* for some other types of remotes the MSB is not constant.
* Btn: 4-bit Control codes, this indicates the button that is pressed
* CRC: 4-bit Checksum.
* Ctn: 16-bit rolling code (big-endian) increased with every button press.
* Serial: 24-bit identifier of sending device (little-endian)
*
*
* Decrypt
*
* uint8_t frame[7];
* for (i=1; i < 7; i++) {
* frame[i] = frame[i] ^ frame[i-1];
* }
* or
* uint64 Decrypt = frame ^ (frame>>8);
*
* Btn
*
* Value Button(s) Description
* 0x1 My Stop or move to favourite position
* 0x2 Up Move up
* 0x3 My + Up Set upper motor limit in initial programming mode
* 0x4 Down Move down
* 0x5 My + Down Set lower motor limit in initial programming mode
* 0x6 Up + Down Change motor limit and initial programming mode
* 0x8 Prog Used for (de-)registering remotes, see below
* 0x9 Sun + Flag Enable sun and wind detector (SUN and FLAG symbol on the Telis Soliris RC)
* 0xA Flag Disable sun detector (FLAG symbol on the Telis Soliris RC)
*
* CRC
*
* uint8_t frame[7];
* for (i=0; i < 7; i++) {
* cksum = cksum ^ frame[i] ^ (frame[i] >> 4);
* }
* cksum = cksum & 0xf;
*
*/
uint64_t data = instance->data ^ (instance->data >> 8);
instance->btn = (data >> 44) & 0xF;
instance->cnt = (data >> 24) & 0xFFFF;
instance->serial = data & 0xFFFFFF;
}
static const char* subghz_protocol_somfy_telis_get_name_button(uint8_t btn) {
const char* name_btn[0x10] = {
"Unknown",
"My",
"Up",
"My+Up",
"Down",
"My+Down",
"Up+Down",
"0x07",
"Prog",
"Sun+Flag",
"Flag",
"0x0B",
"0x0C",
"0x0D",
"0x0E",
"0x0F"};
return btn <= 0xf ? name_btn[btn] : name_btn[0];
}
uint8_t subghz_protocol_decoder_somfy_telis_get_hash_data(void* context) {
furi_assert(context);
SubGhzProtocolDecoderSomfyTelis* instance = context;
return subghz_protocol_blocks_get_hash_data(
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
}
bool subghz_protocol_decoder_somfy_telis_serialize(
void* context,
FlipperFormat* flipper_format,
uint32_t frequency,
FuriHalSubGhzPreset preset) {
furi_assert(context);
SubGhzProtocolDecoderSomfyTelis* instance = context;
return subghz_block_generic_serialize(&instance->generic, flipper_format, frequency, preset);
}
bool subghz_protocol_decoder_somfy_telis_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
SubGhzProtocolDecoderSomfyTelis* instance = context;
return subghz_block_generic_deserialize(&instance->generic, flipper_format);
}
void subghz_protocol_decoder_somfy_telis_get_string(void* context, string_t output) {
furi_assert(context);
SubGhzProtocolDecoderSomfyTelis* instance = context;
subghz_protocol_somfy_telis_check_remote_controller(&instance->generic);
string_cat_printf(
output,
"%s %db\r\n"
"Key:0x%lX%08lX\r\n"
"Sn:0x%06lX \r\n"
"Cnt:0x%04X\r\n"
"Btn:%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.cnt,
subghz_protocol_somfy_telis_get_name_button(instance->generic.btn));
}
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