update more demods for graphing

[proxmark3-svn] / common / lfdemod.c

diff --git a/common/lfdemod.c b/common/lfdemod.c
index d6ef88a40280e57d3e241baffc772bfd70e1aeed..072bd120a7c315fc8aac100f05e1b55dff74ab0f 100644 (file)
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -1130,10 +1130,10 @@ int millerRawDecode(uint8_t *BitStream, size_t *size, int invert) {
 //take 01 or 10 = 1 and 11 or 00 = 0
 //check for phase errors - should never have 111 or 000 should be 01001011 or 10110100 for 1010
 //decodes biphase or if inverted it is AKA conditional dephase encoding AKA differential manchester encoding
 //take 01 or 10 = 1 and 11 or 00 = 0
 //check for phase errors - should never have 111 or 000 should be 01001011 or 10110100 for 1010
 //decodes biphase or if inverted it is AKA conditional dephase encoding AKA differential manchester encoding

-int BiphaseRawDecode(uint8_t *BitStream, size_t *size, int offset, int invert) {
+int BiphaseRawDecode(uint8_t *BitStream, size_t *size, int *offset, int invert) {

        uint16_t bitnum = 0;
        uint16_t errCnt = 0;
        uint16_t bitnum = 0;
        uint16_t errCnt = 0;

-       size_t i = offset;
+       size_t i = *offset;

        uint16_t MaxBits=512;
        //if not enough samples - error
        if (*size < 51) return -1;
        uint16_t MaxBits=512;
        //if not enough samples - error
        if (*size < 51) return -1;


@@ -1143,8 +1143,8 @@ int BiphaseRawDecode(uint8_t *BitStream, size_t *size, int offset, int invert) {
                if (BitStream[i+1]==BitStream[i+2]) offsetA=0; 
                if (BitStream[i+2]==BitStream[i+3]) offsetB=0;                                  
        }
                if (BitStream[i+1]==BitStream[i+2]) offsetA=0; 
                if (BitStream[i+2]==BitStream[i+3]) offsetB=0;                                  
        }

-       if (!offsetA && offsetB) offset++;
-       for (i=offset; i<*size-3; i+=2){
+       if (!offsetA && offsetB) *offset+=1;
+       for (i=*offset; i<*size-3; i+=2){

                //check for phase error
                if (BitStream[i+1]==BitStream[i+2]) {
                        BitStream[bitnum++]=7;
                //check for phase error
                if (BitStream[i+1]==BitStream[i+2]) {
                        BitStream[bitnum++]=7;


@@ -1490,6 +1490,7 @@ size_t aggregate_bits(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert,
 //by marshmellow  (from holiman's base)
 // full fsk demod from GraphBuffer wave to decoded 1s and 0s (no mandemod)
 int fskdemod_ext(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx) {
 //by marshmellow  (from holiman's base)
 // full fsk demod from GraphBuffer wave to decoded 1s and 0s (no mandemod)
 int fskdemod_ext(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx) {

+       if (justNoise(dest, *size)) return 0;

        // FSK demodulator
        size = fsk_wave_demod(dest, size, fchigh, fclow, startIdx);
        size = aggregate_bits(dest, size, rfLen, invert, fchigh, fclow, startIdx);
        // FSK demodulator
        size = fsk_wave_demod(dest, size, fchigh, fclow, startIdx);
        size = aggregate_bits(dest, size, rfLen, invert, fchigh, fclow, startIdx);


@@ -1631,8 +1632,6 @@ int AWIDdemodFSK(uint8_t *dest, size_t *size) {
        //make sure buffer has enough data
        if (*size < 96*50) return -1;
 
        //make sure buffer has enough data
        if (*size < 96*50) return -1;
 

-       if (justNoise(dest, *size)) return -2;
-

        // FSK demodulator
        *size = fskdemod(dest, *size, 50, 1, 10, 8);  // fsk2a RF/50 
        if (*size < 96) return -3;  //did we get a good demod?
        // FSK demodulator
        *size = fskdemod(dest, *size, 50, 1, 10, 8);  // fsk2a RF/50 
        if (*size < 96) return -3;  //did we get a good demod?


@@ -1717,8 +1716,6 @@ int gProxII_Demod(uint8_t BitStream[], size_t *size) {
 
 // loop to get raw HID waveform then FSK demodulate the TAG ID from it
 int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo) {
 
 // loop to get raw HID waveform then FSK demodulate the TAG ID from it
 int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo) {

-       if (justNoise(dest, *size)) return -1;
-

        size_t numStart=0, size2=*size, startIdx=0; 
        // FSK demodulator
        *size = fskdemod(dest, size2,50,1,10,8); //fsk2a
        size_t numStart=0, size2=*size, startIdx=0; 
        // FSK demodulator
        *size = fskdemod(dest, size2,50,1,10,8); //fsk2a


@@ -1747,7 +1744,6 @@ int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32
 }
 
 int IOdemodFSK(uint8_t *dest, size_t size) {
 }
 
 int IOdemodFSK(uint8_t *dest, size_t size) {

-       if (justNoise(dest, size)) return -1;

        //make sure buffer has data
        if (size < 66*64) return -2;
        // FSK demodulator
        //make sure buffer has data
        if (size < 66*64) return -2;
        // FSK demodulator


@@ -1797,8 +1793,6 @@ int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert) {
 
 // loop to get raw paradox waveform then FSK demodulate the TAG ID from it
 int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo) {
 
 // loop to get raw paradox waveform then FSK demodulate the TAG ID from it
 int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo) {

-       if (justNoise(dest, *size)) return -1;
-       

        size_t numStart=0, size2=*size, startIdx=0;
        // FSK demodulator
        *size = fskdemod(dest, size2,50,1,10,8); //fsk2a
        size_t numStart=0, size2=*size, startIdx=0;
        // FSK demodulator
        *size = fskdemod(dest, size2,50,1,10,8); //fsk2a


@@ -1845,9 +1839,6 @@ int PyramiddemodFSK(uint8_t *dest, size_t *size) {
        //make sure buffer has data
        if (*size < 128*50) return -5;
 
        //make sure buffer has data
        if (*size < 128*50) return -5;
 

-       //test samples are not just noise
-       if (justNoise(dest, *size)) return -1;
-

        // FSK demodulator
        *size = fskdemod(dest, *size, 50, 1, 10, 8);  // fsk2a RF/50 
        if (*size < 128) return -2;  //did we get a good demod?
        // FSK demodulator
        *size = fskdemod(dest, *size, 50, 1, 10, 8);  // fsk2a RF/50 
        if (*size < 128) return -2;  //did we get a good demod?