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make hf search robust to various HF configurations

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This commit is contained in:
Philippe Teuwen 2019-08-03 22:14:04 +02:00
commit 25f358955b
7 changed files with 63 additions and 39 deletions
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20
armsrc/iso14443a.c
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@ -14,7 +14,7 @@
#define MAX_ISO14A_TIMEOUT 524288
static uint32_t iso14a_timeout;
// if iso14443a not active - transmit/receive dont try to execute
static bool iso14443a_active = false;
static bool hf_field_active = false;
uint8_t colpos = 0;
int rsamples = 0;
@ -1629,7 +1629,7 @@ void PrepareDelayedTransfer(uint16_t delay) {
//-------------------------------------------------------------------------------------
static void TransmitFor14443a(const uint8_t *cmd, uint16_t len, uint32_t *timing) {
if (!iso14443a_active)
if (!hf_field_active)
return;
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
@ -2014,7 +2014,7 @@ bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_Start
//-----------------------------------------------------------------------------
bool GetIso14443aAnswerFromTag_Thinfilm(uint8_t *receivedResponse, uint8_t *received_len) {
if (!iso14443a_active)
if (!hf_field_active)
return false;
// Set FPGA mode to "reader listen mode", no modulation (listen
@ -2063,7 +2063,7 @@ bool GetIso14443aAnswerFromTag_Thinfilm(uint8_t *receivedResponse, uint8_t *rec
static int GetIso14443aAnswerFromTag(uint8_t *receivedResponse, uint8_t *receivedResponsePar, uint16_t offset) {
uint32_t c = 0;
if (!iso14443a_active)
if (!hf_field_active)
return false;
// Set FPGA mode to "reader listen mode", no modulation (listen
@ -2504,14 +2504,14 @@ void iso14443a_setup(uint8_t fpga_minor_mode) {
NextTransferTime = 2 * DELAY_ARM2AIR_AS_READER;
iso14a_set_timeout(1060); // 106 * 10ms default
iso14443a_active = true;
hf_field_active = true;
}
void iso14443a_off(void) {
void hf_field_off(void) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
iso14443a_active = false;
hf_field_active = false;
}
/* Peter Fillmore 2015
@ -2716,7 +2716,7 @@ void ReaderIso14443a(PacketCommandNG *c) {
return;
OUT:
iso14443a_off();
hf_field_off();
set_tracing(false);
}
@ -3011,7 +3011,7 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype) {
reply_mix(CMD_ACK, isOK, 0, 0, buf, sizeof(buf));
iso14443a_off();
hf_field_off();
set_tracing(false);
}
@ -3250,6 +3250,6 @@ void DetectNACKbug(void) {
//reply_mix(CMD_ACK, isOK, num_nacks, i, 0, 0);
BigBuf_free();
iso14443a_off();
hf_field_off();
set_tracing(false);
}