adjust em4x05/em4x69 command timings to...

[proxmark3-svn] / client / cmdlf.c

diff --git a/client/cmdlf.c b/client/cmdlf.c
index 54f396fdde630902f6a13ce354853d8b6a0c1840..2e786943e6db6e474cdc263d38ab56032567fafe 100644 (file)
--- a/client/cmdlf.c
+++ b/client/cmdlf.c
@@ -13,36 +13,106 @@
 #include <string.h>
 #include <limits.h>
 #include "proxmark3.h"
 #include <string.h>
 #include <limits.h>
 #include "proxmark3.h"

-#include "data.h"
-#include "graph.h"
-#include "ui.h"
-#include "cmdparser.h"
-#include "cmdmain.h"
-#include "cmddata.h"
-#include "util.h"

 #include "cmdlf.h"
 #include "cmdlf.h"

-#include "cmdlfhid.h"
-#include "cmdlfti.h"
-#include "cmdlfem4x.h"
-#include "cmdlfhitag.h"
-#include "cmdlft55xx.h"
-#include "cmdlfpcf7931.h"
-#include "cmdlfio.h"
-#include "lfdemod.h"
-
+#include "lfdemod.h"     // for psk2TOpsk1
+#include "util.h"        // for parsing cli command utils
+#include "ui.h"          // for show graph controls
+#include "graph.h"       // for graph data
+#include "cmdparser.h"   // for getting cli commands included in cmdmain.h
+#include "cmdmain.h"     // for sending cmds to device
+#include "data.h"        // for GetFromBigBuf
+#include "cmddata.h"     // for `lf search`
+#include "cmdlfawid.h"   // for awid menu
+#include "cmdlfem4x.h"   // for em4x menu
+#include "cmdlfhid.h"    // for hid menu
+#include "cmdlfhitag.h"  // for hitag menu
+#include "cmdlfio.h"     // for ioprox menu
+#include "cmdlft55xx.h"  // for t55xx menu
+#include "cmdlfti.h"     // for ti menu
+#include "cmdlfpresco.h" // for presco menu
+#include "cmdlfpcf7931.h"// for pcf7931 menu
+#include "cmdlfpyramid.h"// for pyramid menu
+#include "cmdlfviking.h" // for viking menu
+#include "cmdlfcotag.h"  // for COTAG menu
+
+bool g_lf_threshold_set = false;

 static int CmdHelp(const char *Cmd);
 
 static int CmdHelp(const char *Cmd);
 

+
+
+int usage_lf_cmdread(void)
+{
+       PrintAndLog("Usage: lf cmdread d <delay period> z <zero period> o <one period> c <cmdbytes> [H] ");
+       PrintAndLog("Options:        ");
+       PrintAndLog("       h             This help");
+       PrintAndLog("       L             Low frequency (125 KHz)");
+       PrintAndLog("       H             High frequency (134 KHz)");
+       PrintAndLog("       d <delay>     delay OFF period");
+       PrintAndLog("       z <zero>      time period ZERO");
+       PrintAndLog("       o <one>       time period ONE");
+       PrintAndLog("       c <cmd>       Command bytes");
+       PrintAndLog("       ************* All periods in microseconds");
+       PrintAndLog("Examples:");
+       PrintAndLog("      lf cmdread d 80 z 100 o 200 c 11000");
+       PrintAndLog("      lf cmdread d 80 z 100 o 100 c 11000 H");
+       return 0;
+}
+

 /* send a command before reading */
 int CmdLFCommandRead(const char *Cmd)
 {
 /* send a command before reading */
 int CmdLFCommandRead(const char *Cmd)
 {

-       static char dummy[3];
-
-       dummy[0]= ' ';
-
+       static char dummy[3] = {0x20,0x00,0x00};

        UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K};
        UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K};

-       sscanf(Cmd, "%"lli" %"lli" %"lli" %s %s", &c.arg[0], &c.arg[1], &c.arg[2],(char*)(&c.d.asBytes),(char*)(&dummy+1));
-       // in case they specified 'h'
+       bool errors = FALSE;
+       //uint8_t divisor = 95; //125khz
+       uint8_t cmdp = 0;
+       while(param_getchar(Cmd, cmdp) != 0x00)
+       {
+               switch(param_getchar(Cmd, cmdp))
+               {
+               case 'h':
+                       return usage_lf_cmdread();
+               case 'H':
+                       //divisor = 88;
+                       dummy[1]='h';
+                       cmdp++;
+                       break;
+               case 'L':
+                       cmdp++;
+                       break;
+               case 'c':
+                       param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
+                       cmdp+=2;
+                       break;
+               case 'd':
+                       c.arg[0] = param_get32ex(Cmd, cmdp+1, 0, 10);
+                       cmdp+=2;
+                       break;
+               case 'z':
+                       c.arg[1] = param_get32ex(Cmd, cmdp+1, 0, 10);
+                       cmdp+=2;
+                       break;
+               case 'o':
+                       c.arg[2] = param_get32ex(Cmd, cmdp+1, 0, 10);
+                       cmdp+=2;
+                       break;
+               default:
+                       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+                       errors = 1;
+                       break;
+               }
+               if(errors) break;
+       }
+       // No args
+       if(cmdp == 0) errors = 1;
+
+       //Validations
+       if(errors) return usage_lf_cmdread();
+       
+       // in case they specified 'H'

        strcpy((char *)&c.d.asBytes + strlen((char *)c.d.asBytes), dummy);
        strcpy((char *)&c.d.asBytes + strlen((char *)c.d.asBytes), dummy);

+
+       clearCommandBuffer();

        SendCommand(&c);
        return 0;
 }
        SendCommand(&c);
        return 0;
 }


@@ -58,7 +128,7 @@ int CmdFlexdemod(const char *Cmd)
                }
        }
 
                }
        }
 

-#define LONG_WAIT 100
+ #define LONG_WAIT 100

        int start;
        for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) {
                int first = GraphBuffer[start];
        int start;
        for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) {
                int first = GraphBuffer[start];


@@ -140,10 +210,13 @@ int CmdIndalaDemod(const char *Cmd)
        uint8_t rawbits[4096];
        int rawbit = 0;
        int worst = 0, worstPos = 0;
        uint8_t rawbits[4096];
        int rawbit = 0;
        int worst = 0, worstPos = 0;

- // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32);
+       // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32);
+       
+       // loop through raw signal - since we know it is psk1 rf/32 fc/2 skip every other value (+=2)

        for (i = 0; i < GraphTraceLen-1; i += 2) {
                count += 1;
                if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) {
        for (i = 0; i < GraphTraceLen-1; i += 2) {
                count += 1;
                if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) {

+                       // appears redundant - marshmellow

                        if (state == 0) {
                                for (j = 0; j <  count - 8; j += 16) {
                                        rawbits[rawbit++] = 0;
                        if (state == 0) {
                                for (j = 0; j <  count - 8; j += 16) {
                                        rawbits[rawbit++] = 0;


@@ -156,6 +229,7 @@ int CmdIndalaDemod(const char *Cmd)
                        state = 1;
                        count = 0;
                } else if ((GraphBuffer[i] < GraphBuffer[i + 1]) && (state != 0)) {
                        state = 1;
                        count = 0;
                } else if ((GraphBuffer[i] < GraphBuffer[i + 1]) && (state != 0)) {

+                       //appears redundant

                        if (state == 1) {
                                for (j = 0; j <  count - 8; j += 16) {
                                        rawbits[rawbit++] = 1;
                        if (state == 1) {
                                for (j = 0; j <  count - 8; j += 16) {
                                        rawbits[rawbit++] = 1;


@@ -353,11 +427,12 @@ int CmdIndalaClone(const char *Cmd)
                c.arg[1] = uid2;
        }
 
                c.arg[1] = uid2;
        }
 

+       clearCommandBuffer();

        SendCommand(&c);
        return 0;
 }
 
        SendCommand(&c);
        return 0;
 }
 

-int usage_lf_read()
+int usage_lf_read(void)

 {
        PrintAndLog("Usage: lf read");
        PrintAndLog("Options:        ");
 {
        PrintAndLog("Usage: lf read");
        PrintAndLog("Options:        ");


@@ -367,7 +442,7 @@ int usage_lf_read()
        PrintAndLog("Use 'lf config' to set parameters.");
        return 0;
 }
        PrintAndLog("Use 'lf config' to set parameters.");
        return 0;
 }

-int usage_lf_snoop()
+int usage_lf_snoop(void)

 {
        PrintAndLog("Usage: lf snoop");
        PrintAndLog("Options:        ");
 {
        PrintAndLog("Usage: lf snoop");
        PrintAndLog("Options:        ");


@@ -377,7 +452,7 @@ int usage_lf_snoop()
        return 0;
 }
 
        return 0;
 }
 

-int usage_lf_config()
+int usage_lf_config(void)

 {
        PrintAndLog("Usage: lf config [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
        PrintAndLog("Options:        ");
 {
        PrintAndLog("Usage: lf config [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
        PrintAndLog("Options:        ");


@@ -388,7 +463,7 @@ int usage_lf_config()
        PrintAndLog("       b <bps>       Sets resolution of bits per sample. Default (max): 8");
        PrintAndLog("       d <decim>     Sets decimation. A value of N saves only 1 in N samples. Default: 1");
        PrintAndLog("       a [0|1]       Averaging - if set, will average the stored sample value when decimating. Default: 1");
        PrintAndLog("       b <bps>       Sets resolution of bits per sample. Default (max): 8");
        PrintAndLog("       d <decim>     Sets decimation. A value of N saves only 1 in N samples. Default: 1");
        PrintAndLog("       a [0|1]       Averaging - if set, will average the stored sample value when decimating. Default: 1");

-       PrintAndLog("       t <threshold> Sets trigger threshold. 0 means no threshold");
+       PrintAndLog("       t <threshold> Sets trigger threshold. 0 means no threshold (range: 0-128)");

        PrintAndLog("Examples:");
        PrintAndLog("      lf config b 8 L");
        PrintAndLog("                    Samples at 125KHz, 8bps.");
        PrintAndLog("Examples:");
        PrintAndLog("      lf config b 8 L");
        PrintAndLog("                    Samples at 125KHz, 8bps.");


@@ -435,7 +510,10 @@ int CmdLFSetConfig(const char *Cmd)
                case 't':
                        errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg);
                        cmdp+=2;
                case 't':
                        errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg);
                        cmdp+=2;

-                       if(!errors) trigger_threshold = unsigned_trigg;
+                       if(!errors) {
+                               trigger_threshold = unsigned_trigg;
+                               if (trigger_threshold > 0) g_lf_threshold_set = true;
+                       }

                        break;
                case 'b':
                        errors |= param_getdec(Cmd,cmdp+1,&bps);
                        break;
                case 'b':
                        errors |= param_getdec(Cmd,cmdp+1,&bps);


@@ -467,7 +545,7 @@ int CmdLFSetConfig(const char *Cmd)
                return usage_lf_config();
        }
        //Bps is limited to 8, so fits in lower half of arg1
                return usage_lf_config();
        }
        //Bps is limited to 8, so fits in lower half of arg1

-       if(bps >> 8) bps = 8;
+       if(bps >> 4) bps = 8;

 
        sample_config config = {
                decimation,bps,averaging,divisor,trigger_threshold
 
        sample_config config = {
                decimation,bps,averaging,divisor,trigger_threshold


@@ -475,13 +553,14 @@ int CmdLFSetConfig(const char *Cmd)
        //Averaging is a flag on high-bit of arg[1]
        UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG};
        memcpy(c.d.asBytes,&config,sizeof(sample_config));
        //Averaging is a flag on high-bit of arg[1]
        UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG};
        memcpy(c.d.asBytes,&config,sizeof(sample_config));

+       clearCommandBuffer();

        SendCommand(&c);
        return 0;
 }
 
 int CmdLFRead(const char *Cmd)
 {
        SendCommand(&c);
        return 0;
 }
 
 int CmdLFRead(const char *Cmd)
 {

-
+       if (offline) return 0;

        uint8_t cmdp = 0;
        bool arg1 = false;
        if (param_getchar(Cmd, cmdp) == 'h')
        uint8_t cmdp = 0;
        bool arg1 = false;
        if (param_getchar(Cmd, cmdp) == 'h')


@@ -491,8 +570,16 @@ int CmdLFRead(const char *Cmd)
        if (param_getchar(Cmd, cmdp) == 's') arg1 = true; //suppress print
        //And ship it to device
        UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};
        if (param_getchar(Cmd, cmdp) == 's') arg1 = true; //suppress print
        //And ship it to device
        UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};

+       clearCommandBuffer();

        SendCommand(&c);
        SendCommand(&c);

-       WaitForResponse(CMD_ACK,NULL);
+       if (g_lf_threshold_set) {
+               WaitForResponse(CMD_ACK,NULL);
+       } else {
+               if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
+                       PrintAndLog("command execution time out");
+                       return 1;
+               }
+       }

        return 0;
 }
 
        return 0;
 }
 


@@ -505,6 +592,7 @@ int CmdLFSnoop(const char *Cmd)
        }
 
        UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES};
        }
 
        UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES};

+       clearCommandBuffer();

        SendCommand(&c);
        WaitForResponse(CMD_ACK,NULL);
        return 0;
        SendCommand(&c);
        WaitForResponse(CMD_ACK,NULL);
        return 0;


@@ -522,7 +610,8 @@ 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;
 int CmdLFSim(const char *Cmd)
 {
        int i,j;


@@ -530,11 +619,11 @@ int CmdLFSim(const char *Cmd)
 
        sscanf(Cmd, "%i", &gap);
 
 
        sscanf(Cmd, "%i", &gap);
 

-       /* convert to bitstream if necessary */
+       // convert to bitstream if necessary 

 
        ChkBitstream(Cmd);
 
 
        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}};
        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}};


@@ -550,6 +639,7 @@ int CmdLFSim(const char *Cmd)
        printf("\n");
        PrintAndLog("Starting to simulate");
        UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
        printf("\n");
        PrintAndLog("Starting to simulate");
        UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};

+       clearCommandBuffer();

        SendCommand(&c);
        return 0;
 }
        SendCommand(&c);
        return 0;
 }


@@ -581,7 +671,7 @@ int usage_lf_simask(void)
        PrintAndLog("       b              sim ask/biphase");
        PrintAndLog("       m              sim ask/manchester - Default");
        PrintAndLog("       r              sim ask/raw");
        PrintAndLog("       b              sim ask/biphase");
        PrintAndLog("       m              sim ask/manchester - Default");
        PrintAndLog("       r              sim ask/raw");

-       PrintAndLog("       s              TBD- -to enable a gap between playback repetitions - default: no gap");
+       PrintAndLog("       s              add t55xx Sequence Terminator gap - default: no gaps (only manchester)");

        PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");
        return 0;
 }
        PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");
        return 0;
 }


@@ -602,12 +692,12 @@ int usage_lf_simpsk(void)
        return 0;
 }
 
        return 0;
 }
 

-// by marshmellow - sim ask data given clock, fcHigh, fcLow, invert 
+// by marshmellow - sim fsk data given clock, fcHigh, fcLow, invert 

 // - allow pull data from DemodBuffer
 int CmdLFfskSim(const char *Cmd)
 {
 // - 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;
        uint8_t fcHigh=0, fcLow=0, clk=0;
        uint8_t invert=0;
        bool errors = FALSE;


@@ -682,6 +772,8 @@ int CmdLFfskSim(const char *Cmd)
        } else {
                setDemodBuf(data, dataLen, 0);
        }
        } else {
                setDemodBuf(data, dataLen, 0);
        }

+
+       //default if not found

        if (clk == 0) clk = 50;
        if (fcHigh == 0) fcHigh = 10;
        if (fcLow == 0) fcLow = 8;
        if (clk == 0) clk = 50;
        if (fcHigh == 0) fcHigh = 10;
        if (fcLow == 0) fcLow = 8;


@@ -697,6 +789,7 @@ int CmdLFfskSim(const char *Cmd)
        UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
 
        memcpy(c.d.asBytes, DemodBuffer, size);
        UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
 
        memcpy(c.d.asBytes, DemodBuffer, size);

+       clearCommandBuffer();

        SendCommand(&c);
        return 0;
 }
        SendCommand(&c);
        return 0;
 }


@@ -706,9 +799,8 @@ int CmdLFfskSim(const char *Cmd)
 int CmdLFaskSim(const char *Cmd)
 {
        //autodetect clock from Graphbuffer if using demod buffer
 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;
        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}; 
        uint8_t clk=0, invert=0;
        bool errors = FALSE;
        char hexData[32] = {0x00}; 


@@ -791,6 +883,7 @@ int CmdLFaskSim(const char *Cmd)
        UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
        PrintAndLog("preparing to sim ask data: %d bits", size);
        memcpy(c.d.asBytes, DemodBuffer, size);
        UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
        PrintAndLog("preparing to sim ask data: %d bits", size);
        memcpy(c.d.asBytes, DemodBuffer, size);

+       clearCommandBuffer();

        SendCommand(&c);
        return 0;
 }
        SendCommand(&c);
        return 0;
 }


@@ -898,6 +991,7 @@ int CmdLFpskSim(const char *Cmd)
        UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}};
        PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size);
        memcpy(c.d.asBytes, DemodBuffer, size);
        UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}};
        PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size);
        memcpy(c.d.asBytes, DemodBuffer, size);

+       clearCommandBuffer();

        SendCommand(&c);
        
        return 0;
        SendCommand(&c);
        
        return 0;


@@ -913,30 +1007,6 @@ int CmdLFSimBidir(const char *Cmd)
        return 0;
 }
 
        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
 int CmdVchDemod(const char *Cmd)
 {
        // Is this the entire sync pattern, or does this also include some


@@ -1013,10 +1083,31 @@ int CmdVchDemod(const char *Cmd)
        return 0;
 }
 
        return 0;
 }
 

+
+//by marshmellow
+int CheckChipType(char cmdp) {
+       uint32_t wordData = 0;
+
+       //check for em4x05/em4x69 chips first
+       save_restoreGB(1);
+       if ((!offline && (cmdp != '1')) && EM4x05Block0Test(&wordData)) {
+               PrintAndLog("\nValid EM4x05/EM4x69 Chip Found\nTry lf em 4x05... commands\n");
+               save_restoreGB(0);
+               return 1;
+       }
+
+       //TODO check for t55xx chip...
+
+       save_restoreGB(0);
+       return 1;
+}
+

 //by marshmellow
 int CmdLFfind(const char *Cmd)
 {
 //by marshmellow
 int CmdLFfind(const char *Cmd)
 {

+       uint32_t wordData = 0;

        int ans=0;
        int ans=0;

+       size_t minLength = 1000;

        char cmdp = param_getchar(Cmd, 0);
        char testRaw = param_getchar(Cmd, 1);
        if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
        char cmdp = param_getchar(Cmd, 0);
        char testRaw = param_getchar(Cmd, 1);
        if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {


@@ -1033,9 +1124,9 @@ int CmdLFfind(const char *Cmd)
        }
 
        if (!offline && (cmdp != '1')){
        }
 
        if (!offline && (cmdp != '1')){

-               ans=CmdLFRead("");
-               ans=CmdSamples("20000");
-       } else if (GraphTraceLen < 1000) {
+               CmdLFRead("s");
+               getSamples("30000",false);
+       } else if (GraphTraceLen < minLength) {

                PrintAndLog("Data in Graphbuffer was too small.");
                return 0;
        }
                PrintAndLog("Data in Graphbuffer was too small.");
                return 0;
        }


@@ -1045,75 +1136,121 @@ int CmdLFfind(const char *Cmd)
        PrintAndLog("False Positives ARE possible\n");  
        PrintAndLog("\nChecking for known tags:\n");
 
        PrintAndLog("False Positives ARE possible\n");  
        PrintAndLog("\nChecking for known tags:\n");
 

+       size_t testLen = minLength;
+       // only run if graphbuffer is just noise as it should be for hitag/cotag
+       if (graphJustNoise(GraphBuffer, testLen)) {
+               // only run these tests if we are in online mode 
+               if (!offline && (cmdp != '1')) {
+                       // test for em4x05 in reader talk first mode.
+                       if (EM4x05Block0Test(&wordData)) {
+                               PrintAndLog("\nValid EM4x05/EM4x69 Chip Found\nUse lf em 4x05readword/dump commands to read\n");
+                               return 1;
+                       }
+                       ans=CmdLFHitagReader("26");
+                       if (ans==0) {
+                               return 1;
+                       }
+                       ans=CmdCOTAGRead("");
+                       if (ans>0){
+                               PrintAndLog("\nValid COTAG ID Found!");
+                               return 1;
+                       }
+               }
+               return 0;
+       }
+

        ans=CmdFSKdemodIO("");
        if (ans>0) {
                PrintAndLog("\nValid IO Prox ID Found!");
        ans=CmdFSKdemodIO("");
        if (ans>0) {
                PrintAndLog("\nValid IO Prox ID Found!");

-               return 1;
+               return CheckChipType(cmdp);

        }
 
        ans=CmdFSKdemodPyramid("");
        if (ans>0) {
                PrintAndLog("\nValid Pyramid ID Found!");
        }
 
        ans=CmdFSKdemodPyramid("");
        if (ans>0) {
                PrintAndLog("\nValid Pyramid ID Found!");

-               return 1;
+               return CheckChipType(cmdp);

        }
 
        ans=CmdFSKdemodParadox("");
        if (ans>0) {
                PrintAndLog("\nValid Paradox ID Found!");
        }
 
        ans=CmdFSKdemodParadox("");
        if (ans>0) {
                PrintAndLog("\nValid Paradox ID Found!");

-               return 1;
+               return CheckChipType(cmdp);

        }
 
        ans=CmdFSKdemodAWID("");
        if (ans>0) {
                PrintAndLog("\nValid AWID ID Found!");
        }
 
        ans=CmdFSKdemodAWID("");
        if (ans>0) {
                PrintAndLog("\nValid AWID ID Found!");

-               return 1;
+               return CheckChipType(cmdp);

        }
 
        ans=CmdFSKdemodHID("");
        if (ans>0) {
                PrintAndLog("\nValid HID Prox ID Found!");
        }
 
        ans=CmdFSKdemodHID("");
        if (ans>0) {
                PrintAndLog("\nValid HID Prox ID Found!");

-               return 1;
-       }
-
-       //add psk and indala
-       ans=CmdIndalaDecode("");
-       if (ans>0) {
-               PrintAndLog("\nValid Indala ID Found!");
-               return 1;
+               return CheckChipType(cmdp);

        }
 
        ans=CmdAskEM410xDemod("");
        if (ans>0) {
                PrintAndLog("\nValid EM410x ID Found!");
        }
 
        ans=CmdAskEM410xDemod("");
        if (ans>0) {
                PrintAndLog("\nValid EM410x ID Found!");

-               return 1;
+               return CheckChipType(cmdp);

        }
 
        ans=CmdG_Prox_II_Demod("");
        if (ans>0) {
                PrintAndLog("\nValid G Prox II ID Found!");
        }
 
        ans=CmdG_Prox_II_Demod("");
        if (ans>0) {
                PrintAndLog("\nValid G Prox II ID Found!");

+               return CheckChipType(cmdp);
+       }
+
+       ans=CmdFDXBdemodBI("");
+       if (ans>0) {
+               PrintAndLog("\nValid FDX-B ID Found!");
+               return CheckChipType(cmdp);
+       }
+
+       ans=EM4x50Read("", false);
+       if (ans>0) {
+               PrintAndLog("\nValid EM4x50 ID Found!");

                return 1;
                return 1;

+       }       
+
+       ans=CmdVikingDemod("");
+       if (ans>0) {
+               PrintAndLog("\nValid Viking ID Found!");
+               return CheckChipType(cmdp);
+       }       
+
+       ans=CmdIndalaDecode("");
+       if (ans>0) {
+               PrintAndLog("\nValid Indala ID Found!");
+               return CheckChipType(cmdp);
+       }
+
+       ans=CmdPSKNexWatch("");
+       if (ans>0) {
+               PrintAndLog("\nValid NexWatch ID Found!");
+               return CheckChipType(cmdp);

        }
 
        PrintAndLog("\nNo Known Tags Found!\n");
        if (testRaw=='u' || testRaw=='U'){
        }
 
        PrintAndLog("\nNo Known Tags Found!\n");
        if (testRaw=='u' || testRaw=='U'){

-               //test unknown tag formats (raw mode)
+               ans=CheckChipType(cmdp);
+               //test unknown tag formats (raw mode)0

                PrintAndLog("\nChecking for Unknown tags:\n");
                ans=AutoCorrelate(4000, FALSE, FALSE);
                if (ans > 0) PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);
                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
                if (ans != 0){ //fsk

-                       ans=FSKrawDemod("",FALSE);
+                       ans=FSKrawDemod("",TRUE);

                        if (ans>0) {
                                PrintAndLog("\nUnknown FSK Modulated Tag Found!");
                        if (ans>0) {
                                PrintAndLog("\nUnknown FSK Modulated Tag Found!");

-                               printDemodBuff();

                                return 1;
                        }
                }
                                return 1;
                        }
                }

-               ans=ASKmanDemod("",FALSE,FALSE);
+               bool st = TRUE;
+               ans=ASKDemod_ext("0 0 0",TRUE,FALSE,1,&st);

                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'");
                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("");
                        return 1;
                }
                ans=CmdPSK1rawDemod("");


@@ -1121,7 +1258,6 @@ 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");
                        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");
                        return 1;
                }
                PrintAndLog("\nNo Data Found!\n");


@@ -1132,28 +1268,32 @@ int CmdLFfind(const char *Cmd)
 static command_t CommandTable[] = 
 {
        {"help",        CmdHelp,            1, "This help"},
 static command_t CommandTable[] = 
 {
        {"help",        CmdHelp,            1, "This help"},

-       {"cmdread",     CmdLFCommandRead,   0, "<off period> <'0' period> <'1' period> <command> ['h'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'h' for 134)"},
-       {"em4x",        CmdLFEM4X,          1, "{ EM4X RFIDs... }"},
+       {"awid",        CmdLFAWID,          1, "{ AWID RFIDs...    }"},
+       {"cotag",       CmdLFCOTAG,         1, "{ COTAG RFIDs...   }"},
+       {"em",          CmdLFEM4X,          1, "{ EM4X RFIDs...    }"},
+       {"hid",         CmdLFHID,           1, "{ HID RFIDs...     }"},
+       {"hitag",       CmdLFHitag,         1, "{ Hitag tags and transponders... }"},
+       {"io",          CmdLFIO,            1, "{ ioProx tags...   }"},
+       {"presco",      CmdLFPresco,        1, "{ Presco RFIDs... }"},
+       {"pcf7931",     CmdLFPCF7931,       1, "{ PCF7931 RFIDs... }"},
+       {"pyramid",     CmdLFPyramid,       1, "{ Farpointe/Pyramid RFIDs... }"},
+       {"t55xx",       CmdLFT55XX,         1, "{ T55xx RFIDs...   }"},
+       {"ti",          CmdLFTI,            1, "{ TI RFIDs...      }"},
+       {"viking",      CmdLFViking,        1, "{ Viking tags...   }"},
+       {"cmdread",     CmdLFCommandRead,   0, "<d period> <z period> <o period> <c command> ['H'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'H' for 134)"},

        {"config",      CmdLFSetConfig,     0, "Set config for LF sampling, bit/sample, decimation, frequency"},
        {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},
        {"config",      CmdLFSetConfig,     0, "Set config for LF sampling, bit/sample, decimation, frequency"},
        {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},

-       {"hid",         CmdLFHID,           1, "{ HID RFIDs... }"},
-       {"io",            CmdLFIO,                1, "{ ioProx tags... }"},

        {"indalademod", CmdIndalaDemod,     1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},
        {"indalaclone", CmdIndalaClone,     0, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},
        {"read",        CmdLFRead,          0, "['s' silent] Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"},
        {"search",      CmdLFfind,          1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) - 'u' to search for unknown tags"},
        {"sim",         CmdLFSim,           0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},
        {"indalademod", CmdIndalaDemod,     1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},
        {"indalaclone", CmdIndalaClone,     0, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},
        {"read",        CmdLFRead,          0, "['s' silent] Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"},
        {"search",      CmdLFfind,          1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) - 'u' to search for unknown tags"},
        {"sim",         CmdLFSim,           0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},

-       {"simask",      CmdLFaskSim,        0, "[clock] [invert <1|0>] [manchester/raw <'m'|'r'>] [msg separator 's'] [d <hexdata>] -- Simulate LF ASK tag from demodbuffer or input"},
+       {"simask",      CmdLFaskSim,        0, "[clock] [invert <1|0>] [biphase/manchester/raw <'b'|'m'|'r'>] [msg separator 's'] [d <hexdata>] -- Simulate LF ASK tag from demodbuffer or input"},

        {"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)"},
        {"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)"},
        {"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... }"},

        {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},
        {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},

-       {"t55xx",       CmdLFT55XX,         1, "{ T55xx RFIDs... }"},
-       {"pcf7931",     CmdLFPCF7931,       1, "{PCF7931 RFIDs...}"},

        {NULL, NULL, 0, NULL}
 };
 
        {NULL, NULL, 0, NULL}
 };