mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-22 02:33:10 +00:00
46bc515c6a
* 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
95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
#include "pulse-joiner.h"
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#include <furi.h>
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bool PulseJoiner::push_pulse(bool polarity, uint16_t period, uint16_t pulse) {
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bool result = false;
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furi_check((pulse_index + 1) < pulse_max);
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if(polarity == false && pulse_index == 0) {
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// first negative pulse is ommited
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} else {
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pulses[pulse_index].polarity = polarity;
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pulses[pulse_index].time = pulse;
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pulse_index++;
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}
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if(period > pulse) {
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pulses[pulse_index].polarity = !polarity;
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pulses[pulse_index].time = period - pulse;
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pulse_index++;
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}
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if(pulse_index >= 4) {
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// we know that first pulse is always high
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// so we wait 2 edges, hi2low and next low2hi
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uint8_t edges_count = 0;
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bool last_polarity = pulses[0].polarity;
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for(uint8_t i = 1; i < pulse_index; i++) {
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if(pulses[i].polarity != last_polarity) {
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edges_count++;
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last_polarity = pulses[i].polarity;
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}
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}
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if(edges_count >= 2) {
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result = true;
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}
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}
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return result;
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}
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void PulseJoiner::pop_pulse(uint16_t* period, uint16_t* pulse) {
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furi_check(pulse_index <= (pulse_max + 1));
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uint16_t tmp_period = 0;
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uint16_t tmp_pulse = 0;
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uint8_t edges_count = 0;
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bool last_polarity = pulses[0].polarity;
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uint8_t next_fist_pulse = 0;
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for(uint8_t i = 0; i < pulse_max; i++) {
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// count edges
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if(pulses[i].polarity != last_polarity) {
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edges_count++;
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last_polarity = pulses[i].polarity;
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}
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// wait for 2 edges
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if(edges_count == 2) {
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next_fist_pulse = i;
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break;
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}
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// sum pulse time
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if(pulses[i].polarity) {
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tmp_period += pulses[i].time;
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tmp_pulse += pulses[i].time;
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} else {
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tmp_period += pulses[i].time;
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}
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pulse_index--;
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}
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*period = tmp_period;
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*pulse = tmp_pulse;
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// remove counted periods and shift data
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for(uint8_t i = 0; i < pulse_max; i++) {
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if((next_fist_pulse + i) < pulse_max) {
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pulses[i].polarity = pulses[next_fist_pulse + i].polarity;
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pulses[i].time = pulses[next_fist_pulse + i].time;
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} else {
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break;
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}
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}
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}
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PulseJoiner::PulseJoiner() {
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for(uint8_t i = 0; i < pulse_max; i++) {
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pulses[i] = {false, 0};
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}
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}
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