unleashed-firmware/applications/lfrfid/helpers/encoder-hid-h10301.cpp
SG fb80f9537f
[FL-1616] RFID: fix HID emulation (#610)
* Rfid: fixed HID emulation by adding zero pulse every 4 bits
* Rfid: HID emulation fixed with DSP based FSK oscillator.
2021-07-30 14:12:36 +03:00

46 lines
1.2 KiB
C++

#include "encoder-hid-h10301.h"
#include "protocols/protocol-hid-h10301.h"
#include <furi.h>
void EncoderHID_H10301::init(const uint8_t* data, const uint8_t data_size) {
ProtocolHID10301 hid;
hid.encode(data, data_size, reinterpret_cast<uint8_t*>(&card_data), sizeof(card_data) * 3);
card_data_index = 0;
}
void EncoderHID_H10301::write_bit(bool bit, uint8_t position) {
write_raw_bit(bit, position + 0);
write_raw_bit(!bit, position + 1);
}
void EncoderHID_H10301::write_raw_bit(bool bit, uint8_t position) {
if(bit) {
card_data[position / 32] |= 1UL << (31 - (position % 32));
} else {
card_data[position / 32] &= ~(1UL << (31 - (position % 32)));
}
}
void EncoderHID_H10301::get_next(bool* polarity, uint16_t* period, uint16_t* pulse) {
uint8_t bit = (card_data[card_data_index / 32] >> (31 - (card_data_index % 32))) & 1;
bool advance = fsk->next(bit, period);
if(advance) {
card_data_index++;
if(card_data_index >= (32 * card_data_max)) {
card_data_index = 0;
}
}
*polarity = true;
*pulse = *period / 2;
}
EncoderHID_H10301::EncoderHID_H10301() {
fsk = new OscFSK(8, 10, 50);
}
EncoderHID_H10301::~EncoderHID_H10301() {
delete fsk;
}