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lf cleaning

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remove unneeded code/functions
fix lfdemod askmandemod bug with maxErr=0
silence output for getting samples in lf search
This commit is contained in:
marshmellow42 2015-04-05 00:58:57 -04:00
commit 2767fc0291
13 changed files with 169 additions and 853 deletions
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54
client/cmdlf.c
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@ -522,7 +522,8 @@ static void ChkBitstream(const char *str)
}
}
}
//appears to attempt to simulate manchester
//Attempt to simulate any wave in buffer (one bit per output sample)
// converts GraphBuffer to bitstream (based on zero crossings) if needed.
int CmdLFSim(const char *Cmd)
{
int i,j;
@ -530,11 +531,11 @@ int CmdLFSim(const char *Cmd)
sscanf(Cmd, "%i", &gap);
/* convert to bitstream if necessary */
// convert to bitstream if necessary
ChkBitstream(Cmd);
//can send 512 bits at a time (1 byte sent per bit...)
//can send only 512 bits at a time (1 byte sent per bit...)
printf("Sending [%d bytes]", GraphTraceLen);
for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};
@ -606,8 +607,8 @@ int usage_lf_simpsk(void)
// - allow pull data from DemodBuffer
int CmdLFfskSim(const char *Cmd)
{
//might be able to autodetect FC and clock from Graphbuffer if using demod buffer
//will need FChigh, FClow, Clock, and bitstream
//might be able to autodetect FCs and clock from Graphbuffer if using demod buffer
// otherwise will need FChigh, FClow, Clock, and bitstream
uint8_t fcHigh=0, fcLow=0, clk=0;
uint8_t invert=0;
bool errors = FALSE;
@ -682,6 +683,8 @@ int CmdLFfskSim(const char *Cmd)
} else {
setDemodBuf(data, dataLen, 0);
}
//default if not found
if (clk == 0) clk = 50;
if (fcHigh == 0) fcHigh = 10;
if (fcLow == 0) fcLow = 8;
@ -706,9 +709,8 @@ int CmdLFfskSim(const char *Cmd)
int CmdLFaskSim(const char *Cmd)
{
//autodetect clock from Graphbuffer if using demod buffer
//will need clock, invert, manchester/raw as m or r, separator as s, and bitstream
// needs clock, invert, manchester/raw as m or r, separator as s, and bitstream
uint8_t encoding = 1, separator = 0;
//char cmdp = Cmd[0], par3='m', par4=0;
uint8_t clk=0, invert=0;
bool errors = FALSE;
char hexData[32] = {0x00};
@ -913,30 +915,6 @@ int CmdLFSimBidir(const char *Cmd)
return 0;
}
/* simulate an LF Manchester encoded tag with specified bitstream, clock rate and inter-id gap */
/*
int CmdLFSimManchester(const char *Cmd)
{
static int clock, gap;
static char data[1024], gapstring[8];
sscanf(Cmd, "%i %s %i", &clock, &data[0], &gap);
ClearGraph(0);
for (int i = 0; i < strlen(data) ; ++i)
AppendGraph(0, clock, data[i]- '0');
CmdManchesterMod("");
RepaintGraphWindow();
sprintf(&gapstring[0], "%i", gap);
CmdLFSim(gapstring);
return 0;
}
*/
int CmdVchDemod(const char *Cmd)
{
// Is this the entire sync pattern, or does this also include some
@ -1033,8 +1011,8 @@ int CmdLFfind(const char *Cmd)
}
if (!offline && (cmdp != '1')){
ans=CmdLFRead("");
ans=CmdSamples("20000");
CmdLFRead("s");
getSamples("30000",false);
} else if (GraphTraceLen < 1000) {
PrintAndLog("Data in Graphbuffer was too small.");
return 0;
@ -1105,20 +1083,18 @@ int CmdLFfind(const char *Cmd)
PrintAndLog("\nChecking for Unknown tags:\n");
ans=AutoCorrelate(4000, FALSE, FALSE);
if (ans > 0) PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);
ans=GetFskClock("",FALSE,FALSE); //CmdDetectClockRate("F"); //
ans=GetFskClock("",FALSE,FALSE);
if (ans != 0){ //fsk
ans=FSKrawDemod("",FALSE);
ans=FSKrawDemod("",TRUE);
if (ans>0) {
PrintAndLog("\nUnknown FSK Modulated Tag Found!");
printDemodBuff();
return 1;
}
}
ans=ASKmanDemod("",FALSE,FALSE);
ans=ASKmanDemod("0 0 0",TRUE,FALSE);
if (ans>0) {
PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");
PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'");
printDemodBuff();
return 1;
}
ans=CmdPSK1rawDemod("");
@ -1126,7 +1102,6 @@ int CmdLFfind(const char *Cmd)
PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'");
PrintAndLog("\nCould also be PSK3 - [currently not supported]");
PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod");
printDemodBuff();
return 1;
}
PrintAndLog("\nNo Data Found!\n");
@ -1152,7 +1127,6 @@ static command_t CommandTable[] =
{"simfsk", CmdLFfskSim, 0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] -- Simulate LF FSK tag from demodbuffer or input"},
{"simpsk", CmdLFpskSim, 0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] -- Simulate LF PSK tag from demodbuffer or input"},
{"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},
//{"simman", CmdLFSimManchester, 0, "<Clock> <Bitstream> [GAP] Simulate arbitrary Manchester LF tag"},
{"snoop", CmdLFSnoop, 0, "['l'|'h'|<divisor>] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"},
{"ti", CmdLFTI, 1, "{ TI RFIDs... }"},
{"hitag", CmdLFHitag, 1, "{ Hitag tags and transponders... }"},