mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-20 23:36:31 +08:00
113 lines
2.4 KiB
C
113 lines
2.4 KiB
C
//-----------------------------------------------------------------------------
|
|
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
|
|
//
|
|
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
|
|
// at your option, any later version. See the LICENSE.txt file for the text of
|
|
// the license.
|
|
//-----------------------------------------------------------------------------
|
|
// Graph utilities
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "ui.h"
|
|
#include "graph.h"
|
|
#include "lfdemod.h"
|
|
|
|
int GraphBuffer[MAX_GRAPH_TRACE_LEN];
|
|
int GraphTraceLen;
|
|
|
|
/* write a bit to the graph */
|
|
void AppendGraph(int redraw, int clock, int bit)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < (int)(clock / 2); ++i)
|
|
GraphBuffer[GraphTraceLen++] = bit ^ 1;
|
|
|
|
for (i = (int)(clock / 2); i < clock; ++i)
|
|
GraphBuffer[GraphTraceLen++] = bit;
|
|
|
|
if (redraw)
|
|
RepaintGraphWindow();
|
|
}
|
|
|
|
// clear out our graph window
|
|
int ClearGraph(int redraw)
|
|
{
|
|
int gtl = GraphTraceLen;
|
|
GraphTraceLen = 0;
|
|
|
|
if (redraw)
|
|
RepaintGraphWindow();
|
|
|
|
return gtl;
|
|
}
|
|
|
|
// DETECT CLOCK NOW IN LFDEMOD.C
|
|
|
|
void setGraphBuf(uint8_t *buff, size_t size)
|
|
{
|
|
int i=0;
|
|
ClearGraph(0);
|
|
for (; i < size; ++i){
|
|
GraphBuffer[i]=buff[i]-128;
|
|
}
|
|
GraphTraceLen=size;
|
|
RepaintGraphWindow();
|
|
return;
|
|
}
|
|
size_t getFromGraphBuf(uint8_t *buff)
|
|
{
|
|
uint32_t i;
|
|
for (i=0;i<GraphTraceLen;++i){
|
|
if (GraphBuffer[i]>127) GraphBuffer[i]=127; //trim
|
|
if (GraphBuffer[i]<-127) GraphBuffer[i]=-127; //trim
|
|
buff[i]=(uint8_t)(GraphBuffer[i]+128);
|
|
}
|
|
return i;
|
|
}
|
|
// Get or auto-detect clock rate
|
|
int GetClock(const char *str, int peak, int verbose)
|
|
{
|
|
int clock;
|
|
sscanf(str, "%i", &clock);
|
|
if (!strcmp(str, ""))
|
|
clock = 0;
|
|
|
|
// Auto-detect clock
|
|
if (!clock)
|
|
{
|
|
uint8_t grph[MAX_GRAPH_TRACE_LEN]={0};
|
|
size_t size = getFromGraphBuf(grph);
|
|
clock = DetectASKClock(grph,size,0);
|
|
// Only print this message if we're not looping something
|
|
if (!verbose){
|
|
PrintAndLog("Auto-detected clock rate: %d", clock);
|
|
}
|
|
}
|
|
|
|
return clock;
|
|
}
|
|
|
|
int GetNRZpskClock(const char *str, int peak, int verbose)
|
|
{
|
|
int clock;
|
|
sscanf(str, "%i", &clock);
|
|
if (!strcmp(str, ""))
|
|
clock = 0;
|
|
|
|
// Auto-detect clock
|
|
if (!clock)
|
|
{
|
|
uint8_t grph[MAX_GRAPH_TRACE_LEN]={0};
|
|
size_t size = getFromGraphBuf(grph);
|
|
clock = DetectpskNRZClock(grph,size,0);
|
|
// Only print this message if we're not looping something
|
|
if (!verbose){
|
|
PrintAndLog("Auto-detected clock rate: %d", clock);
|
|
}
|
|
}
|
|
return clock;
|
|
}
|