]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/appmain.c
`hf mf sniff` small fix
[proxmark3-svn] / armsrc / appmain.c
index eded359e0da364906aef836339d13ee34c9d6152..1c3d93982441300451cc0d2a26811c83f819c77e 100644 (file)
 // executes.
 //-----------------------------------------------------------------------------
 
+#include <stdarg.h>
+
 #include "usb_cdc.h"
 #include "cmd.h"
-
 #include "proxmark3.h"
 #include "apps.h"
 #include "util.h"
 #include "printf.h"
 #include "string.h"
-
-#include <stdarg.h>
-
 #include "legicrf.h"
-#include <hitag2.h>
-#include <hitagS.h>
+#include "hitag2.h"
+#include "hitagS.h"
 #include "lfsampling.h"
 #include "BigBuf.h"
 #include "mifareutil.h"
@@ -37,8 +35,6 @@
  #include "iso14443a.h"
 #endif
 
-#define abs(x) ( ((x)<0) ? -(x) : (x) )
-
 //=============================================================================
 // A buffer where we can queue things up to be sent through the FPGA, for
 // any purpose (fake tag, as reader, whatever). We go MSB first, since that
@@ -139,35 +135,28 @@ void Dbhexdump(int len, uint8_t *d, bool bAsci) {
 // return that.
 //-----------------------------------------------------------------------------
 static int ReadAdc(int ch)
-{
-       uint32_t d;
-
-       AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
-       AT91C_BASE_ADC->ADC_MR =
-               ADC_MODE_PRESCALE(63  /* was 32 */) |                                                   // ADC_CLK = MCK / ((63+1) * 2) = 48MHz / 128 = 375kHz
-               ADC_MODE_STARTUP_TIME(1  /* was 16 */) |                                                // Startup Time = (1+1) * 8 / ADC_CLK = 16 / 375kHz = 42,7us     Note: must be > 20us
-               ADC_MODE_SAMPLE_HOLD_TIME(15  /* was 8 */);                                     // Sample & Hold Time SHTIM = 15 / ADC_CLK = 15 / 375kHz = 40us
-
+{      
        // Note: ADC_MODE_PRESCALE and ADC_MODE_SAMPLE_HOLD_TIME are set to the maximum allowed value. 
-       // Both AMPL_LO and AMPL_HI are very high impedance (10MOhm) outputs, the input capacitance of the ADC is 12pF (typical). This results in a time constant
-       // of RC = 10MOhm * 12pF = 120us. Even after the maximum configurable sample&hold time of 40us the input capacitor will not be fully charged. 
+       // AMPL_HI is are high impedance (10MOhm || 1MOhm) output, the input capacitance of the ADC is 12pF (typical). This results in a time constant
+       // of RC = (0.91MOhm) * 12pF = 10.9us. Even after the maximum configurable sample&hold time of 40us the input capacitor will not be fully charged. 
        // 
        // The maths are:
        // If there is a voltage v_in at the input, the voltage v_cap at the capacitor (this is what we are measuring) will be
        //
-       //       v_cap = v_in * (1 - exp(-RC/SHTIM))  =   v_in * (1 - exp(-3))  =  v_in * 0,95                   (i.e. an error of 5%)
-       // 
-       // Note: with the "historic" values in the comments above, the error was 34%  !!!
-       
-       AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
+       //       v_cap = v_in * (1 - exp(-SHTIM/RC))  =   v_in * (1 - exp(-40us/10.9us))  =  v_in * 0,97                   (i.e. an error of 3%)
 
-       AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
+       AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
+       AT91C_BASE_ADC->ADC_MR =
+               ADC_MODE_PRESCALE(63) |                                                 // ADC_CLK = MCK / ((63+1) * 2) = 48MHz / 128 = 375kHz
+               ADC_MODE_STARTUP_TIME(1) |                                              // Startup Time = (1+1) * 8 / ADC_CLK = 16 / 375kHz = 42,7us     Note: must be > 20us
+               ADC_MODE_SAMPLE_HOLD_TIME(15);                                  // Sample & Hold Time SHTIM = 15 / ADC_CLK = 15 / 375kHz = 40us
 
-       while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
-               ;
-       d = AT91C_BASE_ADC->ADC_CDR[ch];
+       AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
+       AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
 
-       return d;
+       while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) {};
+       
+       return AT91C_BASE_ADC->ADC_CDR[ch];
 }
 
 int AvgAdc(int ch) // was static - merlok
@@ -197,6 +186,8 @@ void MeasureAntennaTuningLfOnly(int *vLf125, int *vLf134, int *peakf, int *peakv
 
        FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
+       SpinDelay(50);
+       
        for (i=255; i>=19; i--) {
                WDT_HIT();
                FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
@@ -205,7 +196,7 @@ void MeasureAntennaTuningLfOnly(int *vLf125, int *vLf134, int *peakf, int *peakv
                if (i==95) *vLf125 = adcval; // voltage at 125Khz
                if (i==89) *vLf134 = adcval; // voltage at 134Khz
 
-               LF_Results[i] = adcval>>8; // scale int to fit in byte for graphing purposes
+               LF_Results[i] = adcval >> 9; // scale int to fit in byte for graphing purposes
                if(LF_Results[i] > peak) {
                        *peakv = adcval;
                        peak = LF_Results[i];
@@ -454,7 +445,7 @@ void StandAloneMode14a()
                                                SpinDelay(300);
                                        }
                                }
-                               if (!iso14443a_select_card(uid, &hi14a_card[selected], &cuid))
+                               if (!iso14443a_select_card(uid, &hi14a_card[selected], &cuid, true, 0, true))
                                        continue;
                                else
                                {
@@ -867,7 +858,7 @@ void ListenReaderField(int limit)
 
                if (limit != HF_ONLY) {
                        if(mode == 1) {
-                               if (abs(lf_av - lf_baseline) > REPORT_CHANGE) 
+                               if (ABS(lf_av - lf_baseline) > REPORT_CHANGE) 
                                        LED_D_ON();
                                else
                                        LED_D_OFF();
@@ -875,7 +866,7 @@ void ListenReaderField(int limit)
 
                        lf_av_new = AvgAdc(ADC_CHAN_LF);
                        // see if there's a significant change
-                       if(abs(lf_av - lf_av_new) > REPORT_CHANGE) {
+                       if(ABS(lf_av - lf_av_new) > REPORT_CHANGE) {
                                Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10);
                                lf_av = lf_av_new;
                                if (lf_av > lf_max)
@@ -885,7 +876,7 @@ void ListenReaderField(int limit)
 
                if (limit != LF_ONLY) {
                        if (mode == 1){
-                               if (abs(hf_av - hf_baseline) > REPORT_CHANGE)   
+                               if (ABS(hf_av - hf_baseline) > REPORT_CHANGE)   
                                        LED_B_ON();
                                else
                                        LED_B_OFF();
@@ -893,7 +884,7 @@ void ListenReaderField(int limit)
 
                        hf_av_new = AvgAdc(ADC_CHAN_HF);
                        // see if there's a significant change
-                       if(abs(hf_av - hf_av_new) > REPORT_CHANGE) {
+                       if(ABS(hf_av - hf_av_new) > REPORT_CHANGE) {
                                Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10);
                                hf_av = hf_av_new;
                                if (hf_av > hf_max)
@@ -942,7 +933,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        setSamplingConfig((sample_config *) c->d.asBytes);
                        break;
                case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K:
-                       cmd_send(CMD_ACK,SampleLF(c->arg[0]),0,0,0,0);
+                       cmd_send(CMD_ACK,SampleLF(c->arg[0], c->arg[1]),0,0,0,0);
                        break;
                case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
                        ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
@@ -1019,10 +1010,10 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        WritePCF7931(c->d.asBytes[0],c->d.asBytes[1],c->d.asBytes[2],c->d.asBytes[3],c->d.asBytes[4],c->d.asBytes[5],c->d.asBytes[6], c->d.asBytes[9], c->d.asBytes[7]-128,c->d.asBytes[8]-128, c->arg[0], c->arg[1], c->arg[2]);
                        break;
                case CMD_EM4X_READ_WORD:
-                       EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
+                       EM4xReadWord(c->arg[0], c->arg[1],c->arg[2]);
                        break;
                case CMD_EM4X_WRITE_WORD:
-                       EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
+                       EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2]);
                        break;
                case CMD_AWID_DEMOD_FSK: // Set realtime AWID demodulation
                        CmdAWIDdemodFSK(c->arg[0], 0, 0, 1);
@@ -1030,6 +1021,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_VIKING_CLONE_TAG:
                        CopyVikingtoT55xx(c->arg[0], c->arg[1], c->arg[2]);
                        break;
+               case CMD_COTAG:
+                       Cotag(c->arg[0]);
+                       break;
 #endif
 
 #ifdef WITH_HITAG
@@ -1052,7 +1046,12 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        ReadHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
                        break;
                case CMD_WR_HITAG_S://writer for Hitag tags args=data to write,page and key or challenge
-                       WritePageHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes,c->arg[2]);
+                       if ((hitag_function)c->arg[0] < 10) {
+                               WritePageHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes,c->arg[2]);
+                       }
+                       else if ((hitag_function)c->arg[0] >= 10) {
+                         WriterHitag((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes, c->arg[2]);
+                       }
                        break;
 #endif
 
@@ -1164,6 +1163,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_MIFAREU_WRITEBL:
                        MifareUWriteBlock(c->arg[0], c->arg[1], c->d.asBytes);
                        break;
+               case CMD_MIFARE_ACQUIRE_ENCRYPTED_NONCES:
+                       MifareAcquireEncryptedNonces(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+                       break;
                case CMD_MIFARE_NESTED:
                        MifareNested(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;
@@ -1192,6 +1194,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        break;
                        
                // Work with "magic Chinese" card
+               case CMD_MIFARE_CWIPE:
+                       MifareCWipe(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+                       break;
                case CMD_MIFARE_CSETBLOCK:
                        MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;
@@ -1287,6 +1292,15 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        break;
 
                case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
+                       // iceman; since changing fpga_bitstreams clears bigbuff, Its better to call it before.
+                       // to be able to use this one for uploading data to device 
+                       // arg1 = 0 upload for LF usage 
+                       //        1 upload for HF usage
+                       if (c->arg[1] == 0)
+                               FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+                       else
+                               FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+
                        uint8_t *b = BigBuf_get_addr();
                        memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
                        cmd_send(CMD_ACK,0,0,0,0,0);
@@ -1297,7 +1311,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        break;
 
                case CMD_SET_LF_DIVISOR:
-                       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+                       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
                        FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
                        break;
 
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