mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-11 05:32:28 +00:00
bdba15b366
* iButton: getting started on the worker concept * Hal delay: added global instructions_per_us variable * iButton: one wire slave * iButton: ibutton key setter * iButton: one wire host, use ibutton_hal * iButton\RFID: common pulse decoder concept * iButton: cyfral decoder * iButton: worker thread concept * iButton: metakom decoder * iButton: write key through worker * iButton: worker mode holder * iButton: worker improvements * iButton: Cyfral encoder * iButton: Metakom encoder * lib: pulse protocol helpers * iButton: Metakom decoder * iButton: Cyfral decoder * iButton worker: separate modes * iButton: libs documentation * HAL: iButton gpio modes * iButton worker: rename modes file * iButton worker, hal: move to LL * iButton CLI: worker for reading and emulation commands * iButton HAL: correct init and emulation sequence * iButton cli: moved to plain C * iButton: move to worker, small step to plain C * Libs, one wire: move to plain C * Libs: added forgotten files to compilation * iButton writer: get rid of manual disable/enable irq
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
#include "pulse_glue.h"
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struct PulseGlue {
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int32_t hi_period;
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int32_t low_period;
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int32_t next_hi_period;
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};
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PulseGlue* pulse_glue_alloc() {
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PulseGlue* pulse_glue = malloc(sizeof(PulseGlue));
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pulse_glue_reset(pulse_glue);
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return pulse_glue;
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}
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void pulse_glue_free(PulseGlue* pulse_glue) {
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free(pulse_glue);
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}
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void pulse_glue_reset(PulseGlue* pulse_glue) {
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pulse_glue->hi_period = 0;
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pulse_glue->low_period = 0;
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pulse_glue->next_hi_period = 0;
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}
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bool pulse_glue_push(PulseGlue* pulse_glue, bool polarity, uint32_t length) {
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bool pop_ready = false;
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if(polarity) {
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if(pulse_glue->low_period == 0) {
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// stage 1, accumulate hi period
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pulse_glue->hi_period += length;
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} else {
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// stage 3, accumulate next hi period and be ready for pulse_glue_pop
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pulse_glue->next_hi_period = length;
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// data is ready
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pop_ready = true;
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}
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} else {
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if(pulse_glue->hi_period != 0) {
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// stage 2, accumulate low period
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pulse_glue->low_period += length;
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}
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}
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return pop_ready;
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}
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void pulse_glue_pop(PulseGlue* pulse_glue, uint32_t* length, uint32_t* period) {
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*length = pulse_glue->hi_period + pulse_glue->low_period;
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*period = pulse_glue->hi_period;
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pulse_glue->hi_period = pulse_glue->next_hi_period;
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pulse_glue->low_period = 0;
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pulse_glue->next_hi_period = 0;
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}
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