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https://github.com/DarkFlippers/unleashed-firmware
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acc39a4bc0
* Api Symbols: replace asserts with checks * Api Symbols: replace asserts with checks part 2 * Update no args function signatures with void, to help compiler to track incorrect usage * More unavoidable void * Update PVS config and code to make it happy * Format sources * nfc: fix checks * dead code cleanup & include fixes Co-authored-by: gornekich <n.gorbadey@gmail.com> Co-authored-by: hedger <hedger@users.noreply.github.com> Co-authored-by: hedger <hedger@nanode.su>
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(void) {
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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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