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Fix infinite software polling

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This commit is contained in:
Romuald Conty 2011-10-04 21:42:06 +00:00
parent ace9fb27b1
commit 8fa83ac70f
1 changed files with 19 additions and 16 deletions
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33
libnfc/chips/pn53x.c
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@ -1016,24 +1016,27 @@ pn53x_initiator_poll_target (nfc_device_t * pnd,
}
} else {
pn53x_configure (pnd, NDO_INFINITE_SELECT, true);
for (size_t p=0; p<uiPollNr; p++) {
for (size_t n=0; n<szModulations; n++) {
byte_t *pbtInitiatorData;
size_t szInitiatorData;
prepare_initiator_data (pnmModulations[n], &pbtInitiatorData, &szInitiatorData);
const int timeout_ms = uiPeriod * 150;
struct timeval timeout;
timeout.tv_sec = timeout_ms / 1000;
timeout.tv_usec = (timeout_ms - (timeout.tv_sec * 1000)) * 1000;
// FIXME It does not support DEP targets
do {
for (size_t p=0; p<uiPollNr; p++) {
for (size_t n=0; n<szModulations; n++) {
byte_t *pbtInitiatorData;
size_t szInitiatorData;
prepare_initiator_data (pnmModulations[n], &pbtInitiatorData, &szInitiatorData);
const int timeout_ms = uiPeriod * 150;
struct timeval timeout;
timeout.tv_sec = timeout_ms / 1000;
timeout.tv_usec = (timeout_ms - (timeout.tv_sec * 1000)) * 1000;
if (!pn53x_initiator_select_passive_target_ext (pnd, pnmModulations[n], pbtInitiatorData, szInitiatorData, pnt, &timeout)) {
if (pnd->iLastError != ECOMTIMEOUT)
return false;
} else {
return true;
if (!pn53x_initiator_select_passive_target_ext (pnd, pnmModulations[n], pbtInitiatorData, szInitiatorData, pnt, &timeout)) {
if (pnd->iLastError != ECOMTIMEOUT)
return false;
} else {
return true;
}
}
}
}
} while (uiPollNr==0xff); // uiPollNr==0xff means infinite polling
}
return false;
}