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optimize allocation size for signals

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This commit is contained in:
g3gg0.de
2022-12-29 22:02:34 +01:00
committed by Tiernan Messmer
parent 2c313edcdb
commit d52432970b
1 changed files with 6 additions and 4 deletions
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lib/nfc/protocols/nfcv.c
+6 -4
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@@ -202,7 +202,7 @@ void nfcv_emu_free_signals(NfcVEmuAirSignals* signals) {
void nfcv_emu_alloc_signals(NfcVEmuAir* air, NfcVEmuAirSignals* signals, uint32_t slowdown) {
if(!signals->nfcv_resp_one) {
/* logical one: unmodulated then 8 pulses */
signals->nfcv_resp_one = digital_signal_alloc(40);
signals->nfcv_resp_one = digital_signal_alloc(slowdown * 9);
for(size_t i = 0; i < slowdown; i++) {
digital_signal_append(signals->nfcv_resp_one, air->nfcv_resp_unmod);
}
@@ -212,7 +212,7 @@ void nfcv_emu_alloc_signals(NfcVEmuAir* air, NfcVEmuAirSignals* signals, uint32_
}
if(!signals->nfcv_resp_zero) {
/* logical zero: 8 pulses then unmodulated */
signals->nfcv_resp_zero = digital_signal_alloc(40);
signals->nfcv_resp_zero = digital_signal_alloc(slowdown * 9);
for(size_t i = 0; i < slowdown * 8; i++) {
digital_signal_append(signals->nfcv_resp_zero, air->nfcv_resp_pulse);
}
@@ -222,7 +222,8 @@ void nfcv_emu_alloc_signals(NfcVEmuAir* air, NfcVEmuAirSignals* signals, uint32_
}
if(!signals->nfcv_resp_sof) {
/* SOF: unmodulated, 24 pulses, logic 1 */
signals->nfcv_resp_sof = digital_signal_alloc(160);
signals->nfcv_resp_sof =
digital_signal_alloc(slowdown * 27 + signals->nfcv_resp_one->edge_cnt);
for(size_t i = 0; i < slowdown * 3; i++) {
digital_signal_append(signals->nfcv_resp_sof, air->nfcv_resp_unmod);
}
@@ -233,7 +234,8 @@ void nfcv_emu_alloc_signals(NfcVEmuAir* air, NfcVEmuAirSignals* signals, uint32_
}
if(!signals->nfcv_resp_eof) {
/* EOF: logic 0, 24 pulses, unmodulated */
signals->nfcv_resp_eof = digital_signal_alloc(160);
signals->nfcv_resp_eof =
digital_signal_alloc(slowdown * 27 + signals->nfcv_resp_zero->edge_cnt);
digital_signal_append(signals->nfcv_resp_eof, signals->nfcv_resp_zero);
for(size_t i = 0; i < slowdown * 24; i++) {
digital_signal_append(signals->nfcv_resp_eof, air->nfcv_resp_pulse);