flipperzero-firmware/applications/lf-rfid/helpers/encoder-indala.cpp

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Low frequency RFID app [Read stage] (#385) * App Lfrfid: init * HAL-resources: add external gpios * HAL-pwm: fix frequency calculation * App LFRFID: generic manchester decoder * App LFRFID: em-marine decoder * App iButton: fix dwt timing acquire * App LFRFID: rfid reader * App LFRFID: temporary read keys on read scene * App LFRFID: remove atomic bool init. * App LFRFID: add *.c to build * App LFRFID: unstable HID decoder * App LFRFID: HID-26 reading * HAL OS: disable sleep * App LFRFID: HID-26 reader: remove debug * App LFRFID: static data decoder-analyzer * App LFRFID: very raw Indala decoder * App LFRFID: multiprotocol reader * App LFRFID: more reliable HID decoder * App LFRFID: syntax fix * App LFRFID: simple read scene * Gui: force redraw on screen stream connect * HAL-OS: allow sleep * App LFRFID: notify api, tune view, tune scene * App LFRFID: simple rfid emulator * App LFRFID: more scenes, more reliable EM decoder. * App LFRFID: format fix * App LFRFID: warning fix * Api-hal-resources: add rfid pins, rename external pins * App LFRFID: remove unused emulator * App LFRFID: use new gpio hal api * App accessor: use new ext gpio name * App LFRFID: remove unused emulator * App LFRFID: remove debug gpio * Api-hal-resources: alternate functions init * Api-hal-rfid: new api * Api-hal-ibutton: new api * Api-hal: new headers * App LFRFID: use new api in reader subroutines * App LFRFID: use new api in emulator subroutines * App LFRFID: remove old app * App LFRFID, App iButton: fix memleak * Api-hal-rfid: comments * App LFRFID: pulse joiner helper, it combines pulses of different polarity into one pulse suitable for a timer * App LFRFID: pulse joiner, now can accept only ne pulse * App LFRFID: pulse joiner, fixes * App LFRFID: EM encoder and emulation * App LFRFID: format fixes * App LFRFID: emmarine encoder cleanup * App LFRFID: HID Encoder blank * App LFRFID: Indala Encoder blank
2021-05-04 13:21:16 +00:00
#include "encoder-indala.h"
#include <furi.h>
void EncoderIndala::init(const uint8_t* data, const uint8_t data_size) {
card_data = 0b1010000000000000000000000000000010011101111110011001001001010010;
last_polarity = card_data & 1;
card_data_index = 0;
}
void EncoderIndala::get_next(bool* polarity, uint16_t* period, uint16_t* pulse) {
bool new_bit = (card_data >> (63 - card_data_index)) & 1;
*period = 2;
*pulse = 1;
*polarity = (new_bit != last_polarity);
bit_clock_index++;
if(bit_clock_index >= clock_per_bit) {
bit_clock_index = 0;
last_polarity = *polarity;
card_data_index++;
if(card_data_index >= 64) {
card_data_index = 0;
}
}
}