mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-25 12:13:08 +00:00
341610b8a1
* fbt: added firmware_pvscheck & firmware_pvs targets for *nix * fbt: pvs support on Windows * fbt: additional fixes & docs for PVS support * fbt: fixes for updater env configuration * github: reworked pvs workflow * vscode: added PVS shortcut * pvs: added --ignore-ccache flag * fbt: pvs: opening web browser if there are warnings * fbt: pvs: added browser handler for mac * github: fixed report path for PVS * fbt: pvs: fixed report upload path * removed intentional PVS warning * fixed more PVS warnings * fixed secplus_v1 PVS warning * fbt: added PVSNOBROWSER flag * github: setting PVSNOBROWSER for pvs runs * fbt: less debug output Co-authored-by: あく <alleteam@gmail.com>
378 lines
No EOL
13 KiB
C
378 lines
No EOL
13 KiB
C
#include <furi.h>
|
|
#include "toolbox/level_duration.h"
|
|
#include "protocol_fdx_b.h"
|
|
#include <toolbox/manchester_decoder.h>
|
|
#include <lfrfid/tools/bit_lib.h>
|
|
#include "lfrfid_protocols.h"
|
|
|
|
#define FDX_B_ENCODED_BIT_SIZE (128)
|
|
#define FDX_B_ENCODED_BYTE_SIZE (((FDX_B_ENCODED_BIT_SIZE) / 8))
|
|
#define FDX_B_PREAMBLE_BIT_SIZE (11)
|
|
#define FDX_B_PREAMBLE_BYTE_SIZE (2)
|
|
#define FDX_B_ENCODED_BYTE_FULL_SIZE (FDX_B_ENCODED_BYTE_SIZE + FDX_B_PREAMBLE_BYTE_SIZE)
|
|
|
|
#define FDXB_DECODED_DATA_SIZE (11)
|
|
|
|
#define FDX_B_SHORT_TIME (128)
|
|
#define FDX_B_LONG_TIME (256)
|
|
#define FDX_B_JITTER_TIME (60)
|
|
|
|
#define FDX_B_SHORT_TIME_LOW (FDX_B_SHORT_TIME - FDX_B_JITTER_TIME)
|
|
#define FDX_B_SHORT_TIME_HIGH (FDX_B_SHORT_TIME + FDX_B_JITTER_TIME)
|
|
#define FDX_B_LONG_TIME_LOW (FDX_B_LONG_TIME - FDX_B_JITTER_TIME)
|
|
#define FDX_B_LONG_TIME_HIGH (FDX_B_LONG_TIME + FDX_B_JITTER_TIME)
|
|
|
|
typedef struct {
|
|
bool last_short;
|
|
bool last_level;
|
|
size_t encoded_index;
|
|
uint8_t encoded_data[FDX_B_ENCODED_BYTE_FULL_SIZE];
|
|
uint8_t data[FDXB_DECODED_DATA_SIZE];
|
|
} ProtocolFDXB;
|
|
|
|
ProtocolFDXB* protocol_fdx_b_alloc(void) {
|
|
ProtocolFDXB* protocol = malloc(sizeof(ProtocolFDXB));
|
|
return protocol;
|
|
};
|
|
|
|
void protocol_fdx_b_free(ProtocolFDXB* protocol) {
|
|
free(protocol);
|
|
};
|
|
|
|
uint8_t* protocol_fdx_b_get_data(ProtocolFDXB* proto) {
|
|
return proto->data;
|
|
};
|
|
|
|
void protocol_fdx_b_decoder_start(ProtocolFDXB* protocol) {
|
|
memset(protocol->encoded_data, 0, FDX_B_ENCODED_BYTE_FULL_SIZE);
|
|
protocol->last_short = false;
|
|
};
|
|
|
|
static bool protocol_fdx_b_can_be_decoded(ProtocolFDXB* protocol) {
|
|
bool result = false;
|
|
|
|
/*
|
|
msb lsb
|
|
0 10000000000 Header pattern. 11 bits.
|
|
11 1nnnnnnnn
|
|
20 1nnnnnnnn 38 bit (12 digit) National code.
|
|
29 1nnnnnnnn eg. 000000001008 (decimal).
|
|
38 1nnnnnnnn
|
|
47 1nnnnnncc 10 bit (3 digit) Country code.
|
|
56 1cccccccc eg. 999 (decimal).
|
|
65 1s------- 1 bit data block status flag.
|
|
74 1-------a 1 bit animal application indicator.
|
|
83 1xxxxxxxx 16 bit checksum.
|
|
92 1xxxxxxxx
|
|
101 1eeeeeeee 24 bits of extra data if present.
|
|
110 1eeeeeeee eg. $123456.
|
|
119 1eeeeeeee
|
|
*/
|
|
|
|
do {
|
|
// check 11 bits preamble
|
|
if(bit_lib_get_bits_16(protocol->encoded_data, 0, 11) != 0b10000000000) break;
|
|
// check next 11 bits preamble
|
|
if(bit_lib_get_bits_16(protocol->encoded_data, 128, 11) != 0b10000000000) break;
|
|
// check control bits
|
|
if(!bit_lib_test_parity(protocol->encoded_data, 3, 13 * 9, BitLibParityAlways1, 9)) break;
|
|
|
|
// compute checksum
|
|
uint8_t crc_data[8];
|
|
for(size_t i = 0; i < 8; i++) {
|
|
bit_lib_copy_bits(crc_data, i * 8, 8, protocol->encoded_data, 12 + 9 * i);
|
|
}
|
|
uint16_t crc_res = bit_lib_crc16(crc_data, 8, 0x1021, 0x0000, false, false, 0x0000);
|
|
|
|
// read checksum
|
|
uint16_t crc_ex = 0;
|
|
bit_lib_copy_bits((uint8_t*)&crc_ex, 8, 8, protocol->encoded_data, 84);
|
|
bit_lib_copy_bits((uint8_t*)&crc_ex, 0, 8, protocol->encoded_data, 93);
|
|
|
|
// compare checksum
|
|
if(crc_res != crc_ex) break;
|
|
|
|
result = true;
|
|
} while(false);
|
|
|
|
return result;
|
|
}
|
|
|
|
void protocol_fdx_b_decode(ProtocolFDXB* protocol) {
|
|
// remove parity
|
|
bit_lib_remove_bit_every_nth(protocol->encoded_data, 3, 13 * 9, 9);
|
|
|
|
// remove header pattern
|
|
for(size_t i = 0; i < 11; i++)
|
|
bit_lib_push_bit(protocol->encoded_data, FDX_B_ENCODED_BYTE_FULL_SIZE, 0);
|
|
|
|
// 0 nnnnnnnn
|
|
// 8 nnnnnnnn 38 bit (12 digit) National code.
|
|
// 16 nnnnnnnn eg. 000000001008 (decimal).
|
|
// 24 nnnnnnnn
|
|
// 32 nnnnnncc 10 bit (3 digit) Country code.
|
|
// 40 cccccccc eg. 999 (decimal).
|
|
// 48 s------- 1 bit data block status flag.
|
|
// 56 -------a 1 bit animal application indicator.
|
|
// 64 xxxxxxxx 16 bit checksum.
|
|
// 72 xxxxxxxx
|
|
// 80 eeeeeeee 24 bits of extra data if present.
|
|
// 88 eeeeeeee eg. $123456.
|
|
// 92 eeeeeeee
|
|
|
|
// copy data without checksum
|
|
bit_lib_copy_bits(protocol->data, 0, 64, protocol->encoded_data, 0);
|
|
bit_lib_copy_bits(protocol->data, 64, 24, protocol->encoded_data, 80);
|
|
|
|
// const BitLibRegion regions_encoded[] = {
|
|
// {'n', 0, 38},
|
|
// {'c', 38, 10},
|
|
// {'b', 48, 16},
|
|
// {'x', 64, 16},
|
|
// {'e', 80, 24},
|
|
// };
|
|
|
|
// bit_lib_print_regions(regions_encoded, 5, protocol->encoded_data, FDX_B_ENCODED_BIT_SIZE);
|
|
|
|
// const BitLibRegion regions_decoded[] = {
|
|
// {'n', 0, 38},
|
|
// {'c', 38, 10},
|
|
// {'b', 48, 16},
|
|
// {'e', 64, 24},
|
|
// };
|
|
|
|
// bit_lib_print_regions(regions_decoded, 4, protocol->data, FDXB_DECODED_DATA_SIZE * 8);
|
|
}
|
|
|
|
bool protocol_fdx_b_decoder_feed(ProtocolFDXB* protocol, bool level, uint32_t duration) {
|
|
bool result = false;
|
|
UNUSED(level);
|
|
|
|
bool pushed = false;
|
|
|
|
// Bi-Phase Manchester decoding
|
|
if(duration >= FDX_B_SHORT_TIME_LOW && duration <= FDX_B_SHORT_TIME_HIGH) {
|
|
if(protocol->last_short == false) {
|
|
protocol->last_short = true;
|
|
} else {
|
|
pushed = true;
|
|
bit_lib_push_bit(protocol->encoded_data, FDX_B_ENCODED_BYTE_FULL_SIZE, false);
|
|
protocol->last_short = false;
|
|
}
|
|
} else if(duration >= FDX_B_LONG_TIME_LOW && duration <= FDX_B_LONG_TIME_HIGH) {
|
|
if(protocol->last_short == false) {
|
|
pushed = true;
|
|
bit_lib_push_bit(protocol->encoded_data, FDX_B_ENCODED_BYTE_FULL_SIZE, true);
|
|
} else {
|
|
// reset
|
|
protocol->last_short = false;
|
|
}
|
|
} else {
|
|
// reset
|
|
protocol->last_short = false;
|
|
}
|
|
|
|
if(pushed && protocol_fdx_b_can_be_decoded(protocol)) {
|
|
protocol_fdx_b_decode(protocol);
|
|
result = true;
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
bool protocol_fdx_b_encoder_start(ProtocolFDXB* protocol) {
|
|
memset(protocol->encoded_data, 0, FDX_B_ENCODED_BYTE_FULL_SIZE);
|
|
bit_lib_set_bit(protocol->encoded_data, 0, 1);
|
|
for(size_t i = 0; i < 13; i++) {
|
|
bit_lib_set_bit(protocol->encoded_data, 11 + 9 * i, 1);
|
|
if(i == 8 || i == 9) continue;
|
|
|
|
if(i < 8) {
|
|
bit_lib_copy_bits(protocol->encoded_data, 12 + 9 * i, 8, protocol->data, i * 8);
|
|
} else {
|
|
bit_lib_copy_bits(protocol->encoded_data, 12 + 9 * i, 8, protocol->data, (i - 2) * 8);
|
|
}
|
|
}
|
|
|
|
uint16_t crc_res = bit_lib_crc16(protocol->data, 8, 0x1021, 0x0000, false, false, 0x0000);
|
|
bit_lib_copy_bits(protocol->encoded_data, 84, 8, (uint8_t*)&crc_res, 8);
|
|
bit_lib_copy_bits(protocol->encoded_data, 93, 8, (uint8_t*)&crc_res, 0);
|
|
|
|
protocol->encoded_index = 0;
|
|
protocol->last_short = false;
|
|
protocol->last_level = false;
|
|
return true;
|
|
};
|
|
|
|
LevelDuration protocol_fdx_b_encoder_yield(ProtocolFDXB* protocol) {
|
|
uint32_t duration;
|
|
protocol->last_level = !protocol->last_level;
|
|
|
|
bool bit = bit_lib_get_bit(protocol->encoded_data, protocol->encoded_index);
|
|
|
|
// Bi-Phase Manchester encoder
|
|
if(bit) {
|
|
// one long pulse for 1
|
|
duration = FDX_B_LONG_TIME / 8;
|
|
bit_lib_increment_index(protocol->encoded_index, FDX_B_ENCODED_BIT_SIZE);
|
|
} else {
|
|
// two short pulses for 0
|
|
duration = FDX_B_SHORT_TIME / 8;
|
|
if(protocol->last_short) {
|
|
bit_lib_increment_index(protocol->encoded_index, FDX_B_ENCODED_BIT_SIZE);
|
|
protocol->last_short = false;
|
|
} else {
|
|
protocol->last_short = true;
|
|
}
|
|
}
|
|
|
|
return level_duration_make(protocol->last_level, duration);
|
|
};
|
|
|
|
// 0 nnnnnnnn
|
|
// 8 nnnnnnnn 38 bit (12 digit) National code.
|
|
// 16 nnnnnnnn eg. 000000001008 (decimal).
|
|
// 24 nnnnnnnn
|
|
// 32 nnnnnnnn 10 bit (3 digit) Country code.
|
|
// 40 cccccccc eg. 999 (decimal).
|
|
// 48 s------- 1 bit data block status flag.
|
|
// 56 -------a 1 bit animal application indicator.
|
|
// 64 eeeeeeee 24 bits of extra data if present.
|
|
// 72 eeeeeeee eg. $123456.
|
|
// 80 eeeeeeee
|
|
|
|
static uint64_t protocol_fdx_b_get_national_code(const uint8_t* data) {
|
|
uint64_t national_code = bit_lib_get_bits_32(data, 0, 32);
|
|
national_code = national_code << 32;
|
|
national_code |= (uint64_t)bit_lib_get_bits_32(data, 32, 6) << (32 - 6);
|
|
bit_lib_reverse_bits((uint8_t*)&national_code, 0, 64);
|
|
return national_code;
|
|
}
|
|
|
|
static uint16_t protocol_fdx_b_get_country_code(const uint8_t* data) {
|
|
uint16_t country_code = bit_lib_get_bits_16(data, 38, 10) << 6;
|
|
bit_lib_reverse_bits((uint8_t*)&country_code, 0, 16);
|
|
return country_code;
|
|
}
|
|
|
|
static bool protocol_fdx_b_get_temp(const uint8_t* data, float* temp) {
|
|
uint32_t extended = bit_lib_get_bits_32(data, 64, 24) << 8;
|
|
bit_lib_reverse_bits((uint8_t*)&extended, 0, 32);
|
|
|
|
uint8_t ex_parity = (extended & 0x100) >> 8;
|
|
uint8_t ex_temperature = extended & 0xff;
|
|
uint8_t ex_calc_parity = bit_lib_test_parity_32(ex_temperature, BitLibParityOdd);
|
|
bool ex_temperature_present = (ex_calc_parity == ex_parity) && !(extended & 0xe00);
|
|
|
|
if(ex_temperature_present) {
|
|
float temperature_f = 74 + ex_temperature * 0.2;
|
|
*temp = temperature_f;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void protocol_fdx_b_render_data(ProtocolFDXB* protocol, FuriString* result) {
|
|
// 38 bits of national code
|
|
uint64_t national_code = protocol_fdx_b_get_national_code(protocol->data);
|
|
|
|
// 10 bit of country code
|
|
uint16_t country_code = protocol_fdx_b_get_country_code(protocol->data);
|
|
|
|
bool block_status = bit_lib_get_bit(protocol->data, 48);
|
|
bool rudi_bit = bit_lib_get_bit(protocol->data, 49);
|
|
uint8_t reserved = bit_lib_get_bits(protocol->data, 50, 5);
|
|
uint8_t user_info = bit_lib_get_bits(protocol->data, 55, 5);
|
|
uint8_t replacement_number = bit_lib_get_bits(protocol->data, 60, 3);
|
|
bool animal_flag = bit_lib_get_bit(protocol->data, 63);
|
|
|
|
furi_string_printf(result, "ID: %03u-%012llu\r\n", country_code, national_code);
|
|
furi_string_cat_printf(result, "Animal: %s, ", animal_flag ? "Yes" : "No");
|
|
|
|
float temperature;
|
|
if(protocol_fdx_b_get_temp(protocol->data, &temperature)) {
|
|
float temperature_c = (temperature - 32) / 1.8;
|
|
furi_string_cat_printf(
|
|
result, "T: %.2fF, %.2fC\r\n", (double)temperature, (double)temperature_c);
|
|
} else {
|
|
furi_string_cat_printf(result, "T: ---\r\n");
|
|
}
|
|
|
|
furi_string_cat_printf(
|
|
result,
|
|
"Bits: %X-%X-%X-%X-%X",
|
|
block_status,
|
|
rudi_bit,
|
|
reserved,
|
|
user_info,
|
|
replacement_number);
|
|
};
|
|
|
|
void protocol_fdx_b_render_brief_data(ProtocolFDXB* protocol, FuriString* result) {
|
|
// 38 bits of national code
|
|
uint64_t national_code = protocol_fdx_b_get_national_code(protocol->data);
|
|
|
|
// 10 bit of country code
|
|
uint16_t country_code = protocol_fdx_b_get_country_code(protocol->data);
|
|
|
|
bool animal_flag = bit_lib_get_bit(protocol->data, 63);
|
|
|
|
furi_string_printf(result, "ID: %03u-%012llu\r\n", country_code, national_code);
|
|
furi_string_cat_printf(result, "Animal: %s, ", animal_flag ? "Yes" : "No");
|
|
|
|
float temperature;
|
|
if(protocol_fdx_b_get_temp(protocol->data, &temperature)) {
|
|
float temperature_c = (temperature - 32) / 1.8;
|
|
furi_string_cat_printf(result, "T: %.2fC", (double)temperature_c);
|
|
} else {
|
|
furi_string_cat_printf(result, "T: ---");
|
|
}
|
|
};
|
|
|
|
bool protocol_fdx_b_write_data(ProtocolFDXB* protocol, void* data) {
|
|
LFRFIDWriteRequest* request = (LFRFIDWriteRequest*)data;
|
|
bool result = false;
|
|
|
|
// Correct protocol data by redecoding
|
|
protocol_fdx_b_encoder_start(protocol);
|
|
protocol_fdx_b_decode(protocol);
|
|
|
|
protocol_fdx_b_encoder_start(protocol);
|
|
|
|
if(request->write_type == LFRFIDWriteTypeT5577) {
|
|
request->t5577.block[0] = LFRFID_T5577_MODULATION_DIPHASE | LFRFID_T5577_BITRATE_RF_32 |
|
|
(4 << LFRFID_T5577_MAXBLOCK_SHIFT);
|
|
request->t5577.block[1] = bit_lib_get_bits_32(protocol->encoded_data, 0, 32);
|
|
request->t5577.block[2] = bit_lib_get_bits_32(protocol->encoded_data, 32, 32);
|
|
request->t5577.block[3] = bit_lib_get_bits_32(protocol->encoded_data, 64, 32);
|
|
request->t5577.block[4] = bit_lib_get_bits_32(protocol->encoded_data, 96, 32);
|
|
request->t5577.blocks_to_write = 5;
|
|
result = true;
|
|
}
|
|
return result;
|
|
};
|
|
|
|
const ProtocolBase protocol_fdx_b = {
|
|
.name = "FDX-B",
|
|
.manufacturer = "ISO",
|
|
.data_size = FDXB_DECODED_DATA_SIZE,
|
|
.features = LFRFIDFeatureASK,
|
|
.validate_count = 3,
|
|
.alloc = (ProtocolAlloc)protocol_fdx_b_alloc,
|
|
.free = (ProtocolFree)protocol_fdx_b_free,
|
|
.get_data = (ProtocolGetData)protocol_fdx_b_get_data,
|
|
.decoder =
|
|
{
|
|
.start = (ProtocolDecoderStart)protocol_fdx_b_decoder_start,
|
|
.feed = (ProtocolDecoderFeed)protocol_fdx_b_decoder_feed,
|
|
},
|
|
.encoder =
|
|
{
|
|
.start = (ProtocolEncoderStart)protocol_fdx_b_encoder_start,
|
|
.yield = (ProtocolEncoderYield)protocol_fdx_b_encoder_yield,
|
|
},
|
|
.render_data = (ProtocolRenderData)protocol_fdx_b_render_data,
|
|
.render_brief_data = (ProtocolRenderData)protocol_fdx_b_render_brief_data,
|
|
.write_data = (ProtocolWriteData)protocol_fdx_b_write_data,
|
|
}; |