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add first attempt at lf miller decoding

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don't have any tags capable to test and not yet hooked up to data
rawdemod...
This commit is contained in:
marshmellow42 2017-03-14 13:16:30 -04:00
parent 549daaf778
commit 127f149075
2 changed files with 35 additions and 12 deletions
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18
client/cmddata.c
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@ -29,6 +29,9 @@
uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
uint8_t g_debugMode=0;
size_t DemodBufferLen=0;
size_t g_demodStartIdx=0;
uint8_t g_demodClock=0;
static int CmdHelp(const char *Cmd);
//set the demod buffer with given array of binary (one bit per byte)
@ -253,6 +256,7 @@ void printEM410x(uint32_t hi, uint64_t id)
return;
}
//should be moved to cmdlfem4x.c
int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
{
size_t idx = 0;
@ -274,7 +278,7 @@ int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
}
return 0;
}
//should be moved to cmdlfem4x.c
int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
{
bool st = true;
@ -282,6 +286,7 @@ int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
return AskEm410xDecode(verbose, hi, lo);
}
//should be moved to cmdlfem4x.c
//by marshmellow
//takes 3 arguments - clock, invert and maxErr as integers
//attempts to demodulate ask while decoding manchester
@ -451,7 +456,8 @@ int Cmdmandecoderaw(const char *Cmd)
sscanf(Cmd, "%i %i", &invert, &maxErr);
size=i;
errCnt=manrawdecode(BitStream, &size, invert);
uint8_t alignPos = 0;
errCnt=manrawdecode(BitStream, &size, invert, &alignPos);
if (errCnt>=maxErr){
PrintAndLog("Too many errors: %d",errCnt);
return 0;
@ -590,6 +596,7 @@ int Cmdaskbiphdemod(const char *Cmd)
return ASKbiphaseDemod(Cmd, true);
}
//could be split to a gProxII file
//by marshmellow
//attempts to demodulate and identify a G_Prox_II verex/chubb card
//WARNING: if it fails during some points it will destroy the DemodBuffer data
@ -655,6 +662,7 @@ int CmdG_Prox_II_Demod(const char *Cmd)
return 1;
}
//could be moved to a viking file
//by marshmellow
//see ASKDemod for what args are accepted
int CmdVikingDemod(const char *Cmd)
@ -1038,6 +1046,7 @@ int CmdFSKrawdemod(const char *Cmd)
return FSKrawDemod(Cmd, true);
}
//move to cmdlfhid.c
//by marshmellow (based on existing demod + holiman's refactor)
//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
//print full HID Prox ID and some bit format details if found
@ -1124,6 +1133,7 @@ int CmdFSKdemodHID(const char *Cmd)
return 1;
}
//by marshmellow
//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
//print full Paradox Prox ID and some bit format details if found
@ -2264,13 +2274,13 @@ int CmdDirectionalThreshold(const char *Cmd)
if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
{
lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
GraphBuffer[i] = 1;
GraphBuffer[i] = 127;
}
// Apply second threshold to samples heading down
else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
{
lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
GraphBuffer[i] = -1;
GraphBuffer[i] = -127;
}
else
{