mirror of
https://github.com/Next-Flip/Momentum-Firmware.git
synced 2025-09-28 04:26:42 +02:00
634 lines
22 KiB
C
634 lines
22 KiB
C
#include "princeton.h"
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#include "../blocks/const.h"
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#include "../blocks/decoder.h"
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#include "../blocks/encoder.h"
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#include "../blocks/generic.h"
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#include "../blocks/math.h"
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#include "../blocks/custom_btn_i.h"
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/*
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* Help
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* https://phreakerclub.com/447
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*
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*/
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#define TAG "SubGhzProtocolPrinceton"
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#define PRINCETON_GUARD_TIME_DEFALUT 30 //GUARD_TIME = PRINCETON_GUARD_TIME_DEFALUT * TE
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// Guard Time value should be between 15 -> 72 otherwise default value will be used
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static const SubGhzBlockConst subghz_protocol_princeton_const = {
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.te_short = 390,
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.te_long = 1170,
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.te_delta = 300,
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.min_count_bit_for_found = 24,
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};
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struct SubGhzProtocolDecoderPrinceton {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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uint32_t te;
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uint32_t last_data;
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uint32_t guard_time;
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};
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struct SubGhzProtocolEncoderPrinceton {
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SubGhzProtocolEncoderBase base;
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SubGhzProtocolBlockEncoder encoder;
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SubGhzBlockGeneric generic;
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uint32_t te;
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uint32_t guard_time;
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};
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typedef enum {
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PrincetonDecoderStepReset = 0,
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PrincetonDecoderStepSaveDuration,
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PrincetonDecoderStepCheckDuration,
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} PrincetonDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_princeton_decoder = {
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.alloc = subghz_protocol_decoder_princeton_alloc,
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.free = subghz_protocol_decoder_princeton_free,
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.feed = subghz_protocol_decoder_princeton_feed,
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.reset = subghz_protocol_decoder_princeton_reset,
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.get_hash_data = NULL,
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.get_hash_data_long = subghz_protocol_decoder_princeton_get_hash_data,
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.serialize = subghz_protocol_decoder_princeton_serialize,
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.deserialize = subghz_protocol_decoder_princeton_deserialize,
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.get_string = subghz_protocol_decoder_princeton_get_string,
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.get_string_brief = NULL,
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};
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const SubGhzProtocolEncoder subghz_protocol_princeton_encoder = {
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.alloc = subghz_protocol_encoder_princeton_alloc,
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.free = subghz_protocol_encoder_princeton_free,
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.deserialize = subghz_protocol_encoder_princeton_deserialize,
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.stop = subghz_protocol_encoder_princeton_stop,
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.yield = subghz_protocol_encoder_princeton_yield,
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};
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const SubGhzProtocol subghz_protocol_princeton = {
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.name = SUBGHZ_PROTOCOL_PRINCETON_NAME,
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.type = SubGhzProtocolTypeStatic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_868 | SubGhzProtocolFlag_315 |
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SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable | SubGhzProtocolFlag_Load |
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SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send,
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.decoder = &subghz_protocol_princeton_decoder,
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.encoder = &subghz_protocol_princeton_encoder,
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.filter = SubGhzProtocolFilter_Princeton,
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};
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void* subghz_protocol_encoder_princeton_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolEncoderPrinceton* instance = malloc(sizeof(SubGhzProtocolEncoderPrinceton));
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instance->base.protocol = &subghz_protocol_princeton;
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instance->generic.protocol_name = instance->base.protocol->name;
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instance->encoder.repeat = 10;
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instance->encoder.size_upload = 52; //max 24bit*2 + 2 (start, stop)
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instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration));
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instance->encoder.is_running = false;
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return instance;
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}
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void subghz_protocol_encoder_princeton_free(void* context) {
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furi_assert(context);
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SubGhzProtocolEncoderPrinceton* instance = context;
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free(instance->encoder.upload);
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free(instance);
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}
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// Get custom button code
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static uint8_t subghz_protocol_princeton_get_btn_code(void) {
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uint8_t custom_btn_id = subghz_custom_btn_get();
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uint8_t original_btn_code = subghz_custom_btn_get_original();
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uint8_t btn = original_btn_code;
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// Set custom button
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if((custom_btn_id == SUBGHZ_CUSTOM_BTN_OK) && (original_btn_code != 0)) {
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// Restore original button code
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btn = original_btn_code;
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} else if(custom_btn_id == SUBGHZ_CUSTOM_BTN_UP) {
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switch(original_btn_code) {
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case 0x1:
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btn = 0x2;
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break;
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case 0x2:
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btn = 0x1;
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break;
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case 0x4:
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btn = 0x2;
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break;
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case 0x8:
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btn = 0x2;
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break;
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case 0xF:
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btn = 0x2;
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break;
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// Second encoding type
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case 0x30:
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btn = 0xC0;
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break;
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case 0xC0:
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btn = 0x30;
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break;
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case 0xF3:
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btn = 0xC0;
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break;
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case 0xFC:
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btn = 0xC0;
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break;
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default:
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break;
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}
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} else if(custom_btn_id == SUBGHZ_CUSTOM_BTN_DOWN) {
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switch(original_btn_code) {
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case 0x1:
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btn = 0x4;
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break;
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case 0x2:
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btn = 0x4;
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break;
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case 0x4:
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btn = 0x1;
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break;
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case 0x8:
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btn = 0x1;
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break;
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case 0xF:
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btn = 0x1;
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break;
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// Second encoding type
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case 0x30:
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btn = 0xF3;
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break;
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case 0xC0:
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btn = 0xF3;
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break;
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case 0xF3:
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btn = 0x30;
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break;
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case 0xFC:
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btn = 0xF3;
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break;
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default:
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break;
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}
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} else if(custom_btn_id == SUBGHZ_CUSTOM_BTN_LEFT) {
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switch(original_btn_code) {
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case 0x1:
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btn = 0x8;
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break;
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case 0x2:
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btn = 0x8;
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break;
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case 0x4:
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btn = 0x8;
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break;
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case 0x8:
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btn = 0x4;
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break;
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case 0xF:
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btn = 0x4;
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break;
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// Second encoding type
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case 0x30:
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btn = 0xFC;
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break;
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case 0xC0:
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btn = 0xFC;
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break;
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case 0xF3:
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btn = 0xFC;
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break;
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case 0xFC:
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btn = 0x30;
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break;
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default:
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break;
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}
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} else if(custom_btn_id == SUBGHZ_CUSTOM_BTN_RIGHT) {
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switch(original_btn_code) {
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case 0x1:
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btn = 0xF;
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break;
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case 0x2:
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btn = 0xF;
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break;
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case 0x4:
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btn = 0xF;
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break;
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case 0x8:
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btn = 0xF;
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break;
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case 0xF:
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btn = 0x8;
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break;
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default:
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break;
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}
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}
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return btn;
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}
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/**
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* Generating an upload from data.
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* @param instance Pointer to a SubGhzProtocolEncoderPrinceton instance
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* @return true On success
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*/
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static bool
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subghz_protocol_encoder_princeton_get_upload(SubGhzProtocolEncoderPrinceton* instance) {
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furi_assert(instance);
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// Generate new key using custom or default button
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instance->generic.btn = subghz_protocol_princeton_get_btn_code();
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// Reconstruction of the data
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// If we have 8bit button code move serial to left by 8 bits (and 4 if 4 bits)
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if(instance->generic.btn == 0x30 || instance->generic.btn == 0xC0) {
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instance->generic.data =
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((uint64_t)instance->generic.serial << 8 | (uint64_t)instance->generic.btn);
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} else if(instance->generic.btn == 0xF3 || instance->generic.btn == 0xFC) {
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instance->generic.data =
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((uint64_t)instance->generic.serial << 8 | (uint64_t)(instance->generic.btn & 0xF));
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} else {
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instance->generic.data =
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((uint64_t)instance->generic.serial << 4 | (uint64_t)instance->generic.btn);
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}
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size_t index = 0;
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size_t size_upload = (instance->generic.data_count_bit * 2) + 2;
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if(size_upload > instance->encoder.size_upload) {
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FURI_LOG_E(TAG, "Size upload exceeds allocated encoder buffer.");
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return false;
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} else {
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instance->encoder.size_upload = size_upload;
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}
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//Send key data
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for(uint8_t i = instance->generic.data_count_bit; i > 0; i--) {
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if(bit_read(instance->generic.data, i - 1)) {
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//send bit 1
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)instance->te * 3);
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instance->encoder.upload[index++] = level_duration_make(false, (uint32_t)instance->te);
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} else {
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//send bit 0
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instance->encoder.upload[index++] = level_duration_make(true, (uint32_t)instance->te);
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)instance->te * 3);
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}
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}
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//Send Stop bit
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instance->encoder.upload[index++] = level_duration_make(true, (uint32_t)instance->te);
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//Send PT_GUARD_TIME
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)instance->te * instance->guard_time);
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return true;
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}
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/**
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* Analysis of received data
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* @param instance Pointer to a SubGhzBlockGeneric* instance
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*/
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static void subghz_protocol_princeton_check_remote_controller(SubGhzBlockGeneric* instance) {
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// Parse button modes for second encoding type (and serial is smaller)
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// Button code is 8bit and has fixed values of one of these
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// Exclude button code for each type from serial number before parsing
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if((instance->data & 0xFF) == 0x30 || (instance->data & 0xFF) == 0xC0) {
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// Save serial and button code
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instance->serial = instance->data >> 8;
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instance->btn = instance->data & 0xFF;
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} else if((instance->data & 0xFF) == 0x03 || (instance->data & 0xFF) == 0x0C) {
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// Fix for button code 0x03 and 0x0C having zero at the beggining
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instance->serial = instance->data >> 8;
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instance->btn = (instance->data & 0xFF) | 0xF0;
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} else {
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instance->serial = instance->data >> 4;
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instance->btn = instance->data & 0xF;
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}
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// Save original button for later use
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if(subghz_custom_btn_get_original() == 0) {
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subghz_custom_btn_set_original(instance->btn);
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}
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subghz_custom_btn_set_max(4);
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}
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SubGhzProtocolStatus
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subghz_protocol_encoder_princeton_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolEncoderPrinceton* instance = context;
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SubGhzProtocolStatus ret = SubGhzProtocolStatusError;
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do {
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ret = subghz_block_generic_deserialize_check_count_bit(
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&instance->generic,
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flipper_format,
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subghz_protocol_princeton_const.min_count_bit_for_found);
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if(ret != SubGhzProtocolStatusOk) {
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break;
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}
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if(!flipper_format_rewind(flipper_format)) {
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FURI_LOG_E(TAG, "Rewind error");
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ret = SubGhzProtocolStatusErrorParserOthers;
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break;
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}
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if(!flipper_format_read_uint32(flipper_format, "TE", (uint32_t*)&instance->te, 1)) {
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FURI_LOG_E(TAG, "Missing TE");
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ret = SubGhzProtocolStatusErrorParserTe;
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break;
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}
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//optional parameter parameter
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if(!flipper_format_read_uint32(
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flipper_format, "Guard_time", (uint32_t*)&instance->guard_time, 1)) {
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instance->guard_time = PRINCETON_GUARD_TIME_DEFALUT;
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} else {
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// Guard Time value should be between 15 -> 72 otherwise default value will be used
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if((instance->guard_time < 15) || (instance->guard_time > 72)) {
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instance->guard_time = PRINCETON_GUARD_TIME_DEFALUT;
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}
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}
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flipper_format_read_uint32(
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flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1);
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// Get button and serial before calling get_upload
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subghz_protocol_princeton_check_remote_controller(&instance->generic);
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if(!subghz_protocol_encoder_princeton_get_upload(instance)) {
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ret = SubGhzProtocolStatusErrorEncoderGetUpload;
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break;
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}
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if(!flipper_format_rewind(flipper_format)) {
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FURI_LOG_E(TAG, "Rewind error");
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break;
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}
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uint8_t key_data[sizeof(uint64_t)] = {0};
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for(size_t i = 0; i < sizeof(uint64_t); i++) {
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key_data[sizeof(uint64_t) - i - 1] = (instance->generic.data >> i * 8) & 0xFF;
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}
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if(!flipper_format_update_hex(flipper_format, "Key", key_data, sizeof(uint64_t))) {
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FURI_LOG_E(TAG, "Unable to add Key");
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break;
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}
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instance->encoder.is_running = true;
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} while(false);
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return ret;
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}
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void subghz_protocol_encoder_princeton_stop(void* context) {
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SubGhzProtocolEncoderPrinceton* instance = context;
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instance->encoder.is_running = false;
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}
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LevelDuration subghz_protocol_encoder_princeton_yield(void* context) {
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SubGhzProtocolEncoderPrinceton* instance = context;
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if(instance->encoder.repeat == 0 || !instance->encoder.is_running) {
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instance->encoder.is_running = false;
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return level_duration_reset();
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}
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LevelDuration ret = instance->encoder.upload[instance->encoder.front];
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if(++instance->encoder.front == instance->encoder.size_upload) {
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instance->encoder.repeat--;
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instance->encoder.front = 0;
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}
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return ret;
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}
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void* subghz_protocol_decoder_princeton_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolDecoderPrinceton* instance = malloc(sizeof(SubGhzProtocolDecoderPrinceton));
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instance->base.protocol = &subghz_protocol_princeton;
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instance->generic.protocol_name = instance->base.protocol->name;
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return instance;
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}
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void subghz_protocol_decoder_princeton_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderPrinceton* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_princeton_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderPrinceton* instance = context;
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instance->decoder.parser_step = PrincetonDecoderStepReset;
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instance->last_data = 0;
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}
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void subghz_protocol_decoder_princeton_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderPrinceton* instance = context;
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switch(instance->decoder.parser_step) {
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case PrincetonDecoderStepReset:
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if((!level) && (DURATION_DIFF(duration, subghz_protocol_princeton_const.te_short * 36) <
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subghz_protocol_princeton_const.te_delta * 36)) {
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//Found Preambula
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instance->decoder.parser_step = PrincetonDecoderStepSaveDuration;
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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instance->te = 0;
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instance->guard_time = PRINCETON_GUARD_TIME_DEFALUT;
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}
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break;
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case PrincetonDecoderStepSaveDuration:
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//save duration
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if(level) {
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instance->decoder.te_last = duration;
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instance->te += duration;
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instance->decoder.parser_step = PrincetonDecoderStepCheckDuration;
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}
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break;
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case PrincetonDecoderStepCheckDuration:
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if(!level) {
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if(duration >= ((uint32_t)subghz_protocol_princeton_const.te_long * 2)) {
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instance->decoder.parser_step = PrincetonDecoderStepSaveDuration;
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if(instance->decoder.decode_count_bit ==
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subghz_protocol_princeton_const.min_count_bit_for_found) {
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if((instance->last_data == instance->decoder.decode_data) &&
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instance->last_data) {
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instance->te /= (instance->decoder.decode_count_bit * 4 + 1);
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instance->generic.data = instance->decoder.decode_data;
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instance->generic.data_count_bit = instance->decoder.decode_count_bit;
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instance->guard_time = roundf((float)duration / instance->te);
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// Guard Time value should be between 15 -> 72 otherwise default value will be used
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if((instance->guard_time < 15) || (instance->guard_time > 72)) {
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instance->guard_time = PRINCETON_GUARD_TIME_DEFALUT;
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}
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if(instance->base.callback)
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instance->base.callback(&instance->base, instance->base.context);
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}
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instance->last_data = instance->decoder.decode_data;
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}
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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instance->te = 0;
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break;
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}
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instance->te += duration;
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if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_princeton_const.te_short) <
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subghz_protocol_princeton_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_princeton_const.te_long) <
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subghz_protocol_princeton_const.te_delta * 3)) {
|
|
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
|
|
instance->decoder.parser_step = PrincetonDecoderStepSaveDuration;
|
|
} else if(
|
|
(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_princeton_const.te_long) <
|
|
subghz_protocol_princeton_const.te_delta * 3) &&
|
|
(DURATION_DIFF(duration, subghz_protocol_princeton_const.te_short) <
|
|
subghz_protocol_princeton_const.te_delta)) {
|
|
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
|
|
instance->decoder.parser_step = PrincetonDecoderStepSaveDuration;
|
|
} else {
|
|
instance->decoder.parser_step = PrincetonDecoderStepReset;
|
|
}
|
|
} else {
|
|
instance->decoder.parser_step = PrincetonDecoderStepReset;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
uint32_t subghz_protocol_decoder_princeton_get_hash_data(void* context) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderPrinceton* instance = context;
|
|
return subghz_protocol_blocks_get_hash_data_long(
|
|
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
|
|
}
|
|
|
|
SubGhzProtocolStatus subghz_protocol_decoder_princeton_serialize(
|
|
void* context,
|
|
FlipperFormat* flipper_format,
|
|
SubGhzRadioPreset* preset) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderPrinceton* instance = context;
|
|
SubGhzProtocolStatus ret =
|
|
subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
|
|
if((ret == SubGhzProtocolStatusOk) &&
|
|
!flipper_format_write_uint32(flipper_format, "TE", &instance->te, 1)) {
|
|
FURI_LOG_E(TAG, "Unable to add TE");
|
|
ret = SubGhzProtocolStatusErrorParserTe;
|
|
}
|
|
if((ret == SubGhzProtocolStatusOk) &&
|
|
!flipper_format_write_uint32(flipper_format, "Guard_time", &instance->guard_time, 1)) {
|
|
FURI_LOG_E(TAG, "Unable to add Guard_time");
|
|
ret = SubGhzProtocolStatusErrorParserOthers;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
SubGhzProtocolStatus
|
|
subghz_protocol_decoder_princeton_deserialize(void* context, FlipperFormat* flipper_format) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderPrinceton* instance = context;
|
|
SubGhzProtocolStatus ret = SubGhzProtocolStatusError;
|
|
do {
|
|
ret = subghz_block_generic_deserialize_check_count_bit(
|
|
&instance->generic,
|
|
flipper_format,
|
|
subghz_protocol_princeton_const.min_count_bit_for_found);
|
|
if(ret != SubGhzProtocolStatusOk) {
|
|
break;
|
|
}
|
|
if(!flipper_format_rewind(flipper_format)) {
|
|
FURI_LOG_E(TAG, "Rewind error");
|
|
ret = SubGhzProtocolStatusErrorParserOthers;
|
|
break;
|
|
}
|
|
if(!flipper_format_read_uint32(flipper_format, "TE", (uint32_t*)&instance->te, 1)) {
|
|
FURI_LOG_E(TAG, "Missing TE");
|
|
ret = SubGhzProtocolStatusErrorParserTe;
|
|
break;
|
|
}
|
|
if(!flipper_format_read_uint32(
|
|
flipper_format, "Guard_time", (uint32_t*)&instance->guard_time, 1)) {
|
|
instance->guard_time = PRINCETON_GUARD_TIME_DEFALUT;
|
|
} else {
|
|
// Guard Time value should be between 15 -> 72 otherwise default value will be used
|
|
if((instance->guard_time < 15) || (instance->guard_time > 72)) {
|
|
instance->guard_time = PRINCETON_GUARD_TIME_DEFALUT;
|
|
}
|
|
}
|
|
|
|
} while(false);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void subghz_protocol_decoder_princeton_get_string(void* context, FuriString* output) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderPrinceton* instance = context;
|
|
subghz_protocol_princeton_check_remote_controller(&instance->generic);
|
|
uint32_t data_rev = subghz_protocol_blocks_reverse_key(
|
|
instance->generic.data, instance->generic.data_count_bit);
|
|
|
|
if(instance->generic.btn == 0x30 || instance->generic.btn == 0xC0 ||
|
|
instance->generic.btn == 0xF3 || instance->generic.btn == 0xFC) {
|
|
furi_string_cat_printf(
|
|
output,
|
|
"%s %dbit\r\n"
|
|
"Key:0x%08lX\r\n"
|
|
"Yek:0x%08lX\r\n"
|
|
"Sn:0x%05lX Btn:%02X (8b)\r\n"
|
|
"Te:%luus GT:Te*%lu\r\n",
|
|
instance->generic.protocol_name,
|
|
instance->generic.data_count_bit,
|
|
(uint32_t)(instance->generic.data & 0xFFFFFF),
|
|
data_rev,
|
|
instance->generic.serial,
|
|
(instance->generic.btn == 0xF3 || instance->generic.btn == 0xFC) ?
|
|
instance->generic.btn & 0xF :
|
|
instance->generic.btn,
|
|
instance->te,
|
|
instance->guard_time);
|
|
} else {
|
|
furi_string_cat_printf(
|
|
output,
|
|
"%s %dbit\r\n"
|
|
"Key:0x%08lX\r\n"
|
|
"Yek:0x%08lX\r\n"
|
|
"Sn:0x%05lX Btn:%01X (4b)\r\n"
|
|
"Te:%luus GT:Te*%lu\r\n",
|
|
instance->generic.protocol_name,
|
|
instance->generic.data_count_bit,
|
|
(uint32_t)(instance->generic.data & 0xFFFFFF),
|
|
data_rev,
|
|
instance->generic.serial,
|
|
instance->generic.btn,
|
|
instance->te,
|
|
instance->guard_time);
|
|
}
|
|
}
|