CHG: the AT91C_BASE_PMC->PMC_PCER has a tendecy to be clear when set with "=", ...

[proxmark3-svn] / armsrc / iclass.c

diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index 4d847909767cba93d8106cc6055f144f1e96f8c4..42deea86040145dcf3b82d5b7e1a9722b551da3d 100644 (file)
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -353,7 +353,7 @@ static struct {
                SUB_SECOND_HALF,
                SUB_BOTH
        }               sub;
                SUB_SECOND_HALF,
                SUB_BOTH
        }               sub;

-    uint8_t *output;
+    uint8_t   *output;

 } Demod;
 
 static RAMFUNC int ManchesterDecoding(int v)
 } Demod;
 
 static RAMFUNC int ManchesterDecoding(int v)


@@ -426,10 +426,11 @@ static RAMFUNC int ManchesterDecoding(int v)
                                        Demod.state = DEMOD_UNSYNCD;
                                        error = 0x88;
                                }
                                        Demod.state = DEMOD_UNSYNCD;
                                        error = 0x88;
                                }

-
+                               
+                               // TODO: use this error value to print?  Ask Holiman.
+                               // 2016-01-08 iceman

                        }
                        error = 0;
                        }
                        error = 0;

-

                }
        }
        else {
                }
        }
        else {


@@ -632,8 +633,6 @@ static RAMFUNC int ManchesterDecoding(int v)
 //-----------------------------------------------------------------------------
 void RAMFUNC SnoopIClass(void)
 {
 //-----------------------------------------------------------------------------
 void RAMFUNC SnoopIClass(void)
 {

-
-

     // We won't start recording the frames that we acquire until we trigger;
     // a good trigger condition to get started is probably when we see a
     // response from the tag.
     // We won't start recording the frames that we acquire until we trigger;
     // a good trigger condition to get started is probably when we see a
     // response from the tag.


@@ -654,11 +653,12 @@ void RAMFUNC SnoopIClass(void)
     // The DMA buffer, used to stream samples from the FPGA
     uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
  
     // The DMA buffer, used to stream samples from the FPGA
     uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
  

-       set_tracing(TRUE);

        clear_trace();
        clear_trace();

+       set_tracing(TRUE);
+       

     iso14a_set_trigger(FALSE);
 
     iso14a_set_trigger(FALSE);
 

-       int lastRxCounter;
+    int lastRxCounter;

     uint8_t *upTo;
     int smpl;
     int maxBehindBy = 0;
     uint8_t *upTo;
     int smpl;
     int maxBehindBy = 0;


@@ -677,7 +677,11 @@ void RAMFUNC SnoopIClass(void)
     FpgaSetupSsc();
     upTo = dmaBuf;
     lastRxCounter = DMA_BUFFER_SIZE;
     FpgaSetupSsc();
     upTo = dmaBuf;
     lastRxCounter = DMA_BUFFER_SIZE;

-    FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE);
+       // Setup and start DMA.
+       if ( !FpgaSetupSscDma((uint8_t*) dmaBuf, DMA_BUFFER_SIZE) ){
+               if (MF_DBGLEVEL > 1) Dbprintf("FpgaSetupSscDma failed. Exiting"); 
+               return;
+       }

 
     // And the reader -> tag commands
     memset(&Uart, 0, sizeof(Uart));
 
     // And the reader -> tag commands
     memset(&Uart, 0, sizeof(Uart));


@@ -704,22 +708,22 @@ void RAMFUNC SnoopIClass(void)
     for(;;) {
         LED_A_ON();
         WDT_HIT();
     for(;;) {
         LED_A_ON();
         WDT_HIT();

-        int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) &
-                                (DMA_BUFFER_SIZE-1);
-        if(behindBy > maxBehindBy) {
+        int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) & (DMA_BUFFER_SIZE-1);
+
+        if ( behindBy > maxBehindBy) {

             maxBehindBy = behindBy;
             maxBehindBy = behindBy;

-            if(behindBy > (9 * DMA_BUFFER_SIZE / 10)) {
+            if ( behindBy > (9 * DMA_BUFFER_SIZE / 10)) {

                 Dbprintf("blew circular buffer! behindBy=0x%x", behindBy);
                 goto done;
             }
         }
                 Dbprintf("blew circular buffer! behindBy=0x%x", behindBy);
                 goto done;
             }
         }

-        if(behindBy < 1) continue;
+        if( behindBy < 1) continue;

 
 

-       LED_A_OFF();
+               LED_A_OFF();

         smpl = upTo[0];
         upTo++;
         lastRxCounter -= 1;
         smpl = upTo[0];
         upTo++;
         lastRxCounter -= 1;

-        if(upTo - dmaBuf > DMA_BUFFER_SIZE) {
+        if (upTo - dmaBuf > DMA_BUFFER_SIZE) {

             upTo -= DMA_BUFFER_SIZE;
             lastRxCounter += DMA_BUFFER_SIZE;
             AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) upTo;
             upTo -= DMA_BUFFER_SIZE;
             lastRxCounter += DMA_BUFFER_SIZE;
             AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) upTo;


@@ -727,77 +731,75 @@ void RAMFUNC SnoopIClass(void)
         }
 
         //samples += 4;
         }
 
         //samples += 4;

-       samples += 1;
+               samples += 1;

 
 

-       if(smpl & 0xF) {
-               decbyte ^= (1 << (3 - div));
-       }
+               if(smpl & 0xF)
+                       decbyte ^= (1 << (3 - div));
+       

        
        

-       // FOR READER SIDE COMMUMICATION...
+               // FOR READER SIDE COMMUMICATION...

 
 

-       decbyter <<= 2;
-       decbyter ^= (smpl & 0x30);
+               decbyter <<= 2;
+               decbyter ^= (smpl & 0x30);

 
 

-       div++;
+               ++div;

        
        

-       if((div + 1) % 2 == 0) {
-               smpl = decbyter;        
-               if(OutOfNDecoding((smpl & 0xF0) >> 4)) {
-                   rsamples = samples - Uart.samples;
-                       time_stop = (GetCountSspClk()-time_0) << 4;
-                   LED_C_ON();
-
-                       //if(!LogTrace(Uart.output,Uart.byteCnt, rsamples, Uart.parityBits,TRUE)) break;
-                       //if(!LogTrace(NULL, 0, Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER, 0, TRUE)) break;
-                       if(tracing)     {
-                               uint8_t parity[MAX_PARITY_SIZE];
-                               GetParity(Uart.output, Uart.byteCnt, parity);
-                               LogTrace(Uart.output,Uart.byteCnt, time_start, time_stop, parity, TRUE);
-                       }
-
+               if (( div + 1) % 2 == 0) {
+                       smpl = decbyter;        
+                       if ( OutOfNDecoding((smpl & 0xF0) >> 4)) {
+                               rsamples = samples - Uart.samples;
+                               time_stop = (GetCountSspClk()-time_0) << 4;
+                               LED_C_ON();
+
+                               //if(!LogTrace(Uart.output,Uart.byteCnt, rsamples, Uart.parityBits,TRUE)) break;
+                               //if(!LogTrace(NULL, 0, Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER, 0, TRUE)) break;
+                               if(tracing)     {
+                                       uint8_t parity[MAX_PARITY_SIZE];
+                                       GetParity(Uart.output, Uart.byteCnt, parity);
+                                       LogTrace(Uart.output,Uart.byteCnt, time_start, time_stop, parity, TRUE);
+                               }

 
 

-                       /* And ready to receive another command. */
-                   Uart.state = STATE_UNSYNCD;
-                   /* And also reset the demod code, which might have been */
-                   /* false-triggered by the commands from the reader. */
-                   Demod.state = DEMOD_UNSYNCD;
-                   LED_B_OFF();
-                   Uart.byteCnt = 0;
-               }else{
-                       time_start = (GetCountSspClk()-time_0) << 4;
+                               /* And ready to receive another command. */
+                               Uart.state = STATE_UNSYNCD;
+                               /* And also reset the demod code, which might have been */
+                               /* false-triggered by the commands from the reader. */
+                               Demod.state = DEMOD_UNSYNCD;
+                               LED_B_OFF();
+                               Uart.byteCnt = 0;
+                       } else {
+                               time_start = (GetCountSspClk()-time_0) << 4;
+                       }
+                       decbyter = 0;

                }
                }

-               decbyter = 0;
-       }

 
 

-       if(div > 3) {
-               smpl = decbyte;
-               if(ManchesterDecoding(smpl & 0x0F)) {
-                       time_stop = (GetCountSspClk()-time_0) << 4;
+               if(div > 3) {
+                       smpl = decbyte;
+                       if(ManchesterDecoding(smpl & 0x0F)) {
+                               time_stop = (GetCountSspClk()-time_0) << 4;

 
 

-                       rsamples = samples - Demod.samples;
-                   LED_B_ON();
+                               rsamples = samples - Demod.samples;
+                               LED_B_ON();

 
 

-                       if(tracing)     {
-                               uint8_t parity[MAX_PARITY_SIZE];
-                               GetParity(Demod.output, Demod.len, parity);
-                               LogTrace(Demod.output, Demod.len, time_start, time_stop, parity, FALSE);
-                       }
+                               if(tracing)     {
+                                       uint8_t parity[MAX_PARITY_SIZE];
+                                       GetParity(Demod.output, Demod.len, parity);
+                                       LogTrace(Demod.output, Demod.len, time_start, time_stop, parity, FALSE);
+                               }

 
 

-                   // And ready to receive another response.
-                   memset(&Demod, 0, sizeof(Demod));
-                       Demod.output = tagToReaderResponse;
-                   Demod.state = DEMOD_UNSYNCD;
-                   LED_C_OFF();
-               }else{
-                       time_start = (GetCountSspClk()-time_0) << 4;
+                               // And ready to receive another response.
+                               memset(&Demod, 0, sizeof(Demod));
+                               Demod.output = tagToReaderResponse;
+                               Demod.state = DEMOD_UNSYNCD;
+                               LED_C_OFF();
+                       } else {
+                               time_start = (GetCountSspClk()-time_0) << 4;
+                       }
+                       
+                       div = 0;
+                       decbyte = 0x00;

                }
                }

-               
-               div = 0;
-               decbyte = 0x00;
-       }
-       //}

 
 

-        if(BUTTON_PRESS()) {
+        if (BUTTON_PRESS()) {

             DbpString("cancelled_a");
             goto done;
         }
             DbpString("cancelled_a");
             goto done;
         }


@@ -809,20 +811,17 @@ void RAMFUNC SnoopIClass(void)
        Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);
 
 done:
        Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);
 
 done:

-    AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS;
+    FpgaDisableSscDma();

     Dbprintf("%x %x %x", maxBehindBy, Uart.state, Uart.byteCnt);
        Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);
     Dbprintf("%x %x %x", maxBehindBy, Uart.state, Uart.byteCnt);
        Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);

-    LED_A_OFF();
-    LED_B_OFF();
-    LED_C_OFF();
-    LED_D_OFF();
+       LEDsoff();
+       set_tracing(FALSE);     

 }
 
 void rotateCSN(uint8_t* originalCSN, uint8_t* rotatedCSN) {
        int i; 
 }
 
 void rotateCSN(uint8_t* originalCSN, uint8_t* rotatedCSN) {
        int i; 

-       for(i = 0; i < 8; i++) {
+       for(i = 0; i < 8; i++)

                rotatedCSN[i] = (originalCSN[i] >> 3) | (originalCSN[(i+1)%8] << 5);
                rotatedCSN[i] = (originalCSN[i] >> 3) | (originalCSN[(i+1)%8] << 5);

-       }

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -924,7 +923,7 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len)
         * The mode FPGA_HF_SIMULATOR_MODULATE_424K_8BIT which we use to simulate tag,
         * works like this.
         * - A 1-bit input to the FPGA becomes 8 pulses on 423.5kHz (fc/32) (18.88us).
         * The mode FPGA_HF_SIMULATOR_MODULATE_424K_8BIT which we use to simulate tag,
         * works like this.
         * - A 1-bit input to the FPGA becomes 8 pulses on 423.5kHz (fc/32) (18.88us).

-        * - A 0-bit inptu to the FPGA becomes an unmodulated time of 18.88us
+        * - A 0-bit input to the FPGA becomes an unmodulated time of 18.88us

         *
         * In this mode the SOF can be written as 00011101 = 0x1D
         * The EOF can be written as 10111000 = 0xb8
         *
         * In this mode the SOF can be written as 00011101 = 0x1D
         * The EOF can be written as 10111000 = 0xb8


@@ -944,7 +943,7 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len)
                uint8_t b = cmd[i];
                ToSend[++ToSendMax] = encode4Bits(b & 0xF); //Least significant half
                ToSend[++ToSendMax] = encode4Bits((b >>4) & 0xF);//Most significant half
                uint8_t b = cmd[i];
                ToSend[++ToSendMax] = encode4Bits(b & 0xF); //Least significant half
                ToSend[++ToSendMax] = encode4Bits((b >>4) & 0xF);//Most significant half

-       }
+                       }

 
        // Send EOF
        ToSend[++ToSendMax] = 0xB8;
 
        // Send EOF
        ToSend[++ToSendMax] = 0xB8;


@@ -991,8 +990,9 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
        // Enable and clear the trace
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
        // Enable and clear the trace

-       set_tracing(TRUE);

        clear_trace();
        clear_trace();

+       set_tracing(TRUE);
+

        //Use the emulator memory for SIM
        uint8_t *emulator = BigBuf_get_EM_addr();
 
        //Use the emulator memory for SIM
        uint8_t *emulator = BigBuf_get_EM_addr();
 


@@ -1040,7 +1040,11 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain
                Dbprintf("The mode is not implemented, reserved for future use");
        }
        Dbprintf("Done...");
                Dbprintf("The mode is not implemented, reserved for future use");
        }
        Dbprintf("Done...");

-
+       set_tracing(FALSE);     
+}
+void AppendCrc(uint8_t* data, int len)
+{
+       ComputeCrc14443(CRC_ICLASS,data,len,data+len,data+len+1);

 }
 
 /**
 }
 
 /**


@@ -1121,7 +1125,6 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
        int resp_cc_len;
 
        uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
        int resp_cc_len;
 
        uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);

-       memset(receivedCmd, 0x44, MAX_FRAME_SIZE);

        int len;
 
        // Prepare card messages
        int len;
 
        // Prepare card messages


@@ -1144,9 +1147,11 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
        memcpy(resp_cc, ToSend, ToSendMax); resp_cc_len = ToSendMax;
 
        //This is used for responding to READ-block commands or other data which is dynamically generated
        memcpy(resp_cc, ToSend, ToSendMax); resp_cc_len = ToSendMax;
 
        //This is used for responding to READ-block commands or other data which is dynamically generated

-       uint8_t *data_response = BigBuf_malloc(8 * 2 + 2);
-       //This is used for responding to READ-block commands or other data which is dynamically generated
-       uint8_t *data_generic_trace = BigBuf_malloc(8 * 2 + 2);
+       //First the 'trace'-data, not encoded for FPGA
+       uint8_t *data_generic_trace = BigBuf_malloc(8 + 2);//8 bytes data + 2byte CRC is max tag answer
+       //Then storage for the modulated data
+       //Each bit is doubled when modulated for FPGA, and we also have SOF and EOF (2 bytes)
+       uint8_t *data_response = BigBuf_malloc( (8+2) * 2 + 2);

 
        // Start from off (no field generated)
        //FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 
        // Start from off (no field generated)
        //FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);


@@ -1224,24 +1229,24 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
                                //exitLoop = true;
                        }else
                        {       //Not fullsim, we don't respond
                                //exitLoop = true;
                        }else
                        {       //Not fullsim, we don't respond

-                               // We do not know what to answer, so lets keep quiet
+            // We do not know what to answer, so lets keep quiet

                                modulated_response = resp_sof; modulated_response_size = 0;
                                modulated_response = resp_sof; modulated_response_size = 0;

-                               trace_data = NULL;
-                               trace_data_size = 0;
+                       trace_data = NULL;
+                       trace_data_size = 0;

                                if (simulationMode == MODE_EXIT_AFTER_MAC){
                                if (simulationMode == MODE_EXIT_AFTER_MAC){

-                                       // dbprintf:ing ...
-                                       Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x"
-                                                          ,csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
-                                       Dbprintf("RDR:  (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len,
-                                                       receivedCmd[0], receivedCmd[1], receivedCmd[2],
-                                                       receivedCmd[3], receivedCmd[4], receivedCmd[5],
-                                                       receivedCmd[6], receivedCmd[7], receivedCmd[8]);
-                                       if (reader_mac_buf != NULL)
-                                       {
-                                               memcpy(reader_mac_buf,receivedCmd+1,8);
-                                       }
-                                       exitLoop = true;
+                               // dbprintf:ing ...
+                               Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x"
+                                                  ,csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
+                               Dbprintf("RDR:  (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len,
+                                               receivedCmd[0], receivedCmd[1], receivedCmd[2],
+                                               receivedCmd[3], receivedCmd[4], receivedCmd[5],
+                                               receivedCmd[6], receivedCmd[7], receivedCmd[8]);
+                               if (reader_mac_buf != NULL)
+                               {
+                                       memcpy(reader_mac_buf,receivedCmd+1,8);

                                }
                                }

+                               exitLoop = true;
+                       }

                        }
 
                } else if(receivedCmd[0] == ICLASS_CMD_HALT && len == 1) {
                        }
 
                } else if(receivedCmd[0] == ICLASS_CMD_HALT && len == 1) {


@@ -1252,8 +1257,28 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
                } else if(simulationMode == MODE_FULLSIM && receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4){
                        //Read block
                        uint16_t blk = receivedCmd[1];
                } else if(simulationMode == MODE_FULLSIM && receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4){
                        //Read block
                        uint16_t blk = receivedCmd[1];

-                       trace_data = emulator+(blk << 3);
-                       trace_data_size = 8;
+                       //Take the data...
+                       memcpy(data_generic_trace, emulator+(blk << 3),8);
+                       //Add crc
+                       AppendCrc(data_generic_trace, 8);
+                       trace_data = data_generic_trace;
+                       trace_data_size = 10;
+                       CodeIClassTagAnswer(trace_data , trace_data_size);
+                       memcpy(data_response, ToSend, ToSendMax);
+                       modulated_response = data_response;
+                       modulated_response_size = ToSendMax;
+               }else if(receivedCmd[0] == ICLASS_CMD_UPDATE && simulationMode == MODE_FULLSIM)
+               {//Probably the reader wants to update the nonce. Let's just ignore that for now.
+                       // OBS! If this is implemented, don't forget to regenerate the cipher_state
+                       //We're expected to respond with the data+crc, exactly what's already in the receivedcmd
+                       //receivedcmd is now UPDATE 1b | ADDRESS 1b| DATA 8b| Signature 4b or CRC 2b|
+
+                       //Take the data...
+                       memcpy(data_generic_trace, receivedCmd+2,8);
+                       //Add crc
+                       AppendCrc(data_generic_trace, 8);
+                       trace_data = data_generic_trace;
+                       trace_data_size = 10;

                        CodeIClassTagAnswer(trace_data , trace_data_size);
                        memcpy(data_response, ToSend, ToSendMax);
                        modulated_response = data_response;
                        CodeIClassTagAnswer(trace_data , trace_data_size);
                        memcpy(data_response, ToSend, ToSendMax);
                        modulated_response = data_response;


@@ -1275,7 +1300,8 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
                        receivedCmd[3], receivedCmd[4], receivedCmd[5],
                        receivedCmd[6], receivedCmd[7], receivedCmd[8]);
                        // Do not respond
                        receivedCmd[3], receivedCmd[4], receivedCmd[5],
                        receivedCmd[6], receivedCmd[7], receivedCmd[8]);
                        // Do not respond

-                       modulated_response = resp_sof; modulated_response_size = 0; //order = 0;
+                       modulated_response = resp_sof;
+                       modulated_response_size = 0; //order = 0;

                        trace_data = NULL;
                        trace_data_size = 0;
                }
                        trace_data = NULL;
                        trace_data_size = 0;
                }


@@ -1304,24 +1330,17 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
                                GetParity(trace_data, trace_data_size, parity);
                                LogTrace(trace_data, trace_data_size, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, FALSE);
                        }
                                GetParity(trace_data, trace_data_size, parity);
                                LogTrace(trace_data, trace_data_size, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, FALSE);
                        }

-                       if(!tracing) {
+                       if(!tracing)

                                DbpString("Trace full");
                                DbpString("Trace full");

-                               //break;
-                       }

 
                }
 
                }

-               memset(receivedCmd, 0x44, MAX_FRAME_SIZE);

        }
 
        }
 

-       //Dbprintf("%x", cmdsRecvd);
-       LED_A_OFF();
-       LED_B_OFF();
-       LED_C_OFF();
-
+       LEDsoff();
+       

        if(buttonPressed)
        if(buttonPressed)

-       {

                DbpString("Button pressed");
                DbpString("Button pressed");

-       }
+       

        return buttonPressed;
 }
 
        return buttonPressed;
 }
 


@@ -1369,63 +1388,62 @@ static int SendIClassAnswer(uint8_t *resp, int respLen, int delay)
 //-----------------------------------------------------------------------------
 static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int *wait)
 {
 //-----------------------------------------------------------------------------
 static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int *wait)
 {

-  int c;
-  FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
-  AT91C_BASE_SSC->SSC_THR = 0x00;
-  FpgaSetupSsc();
-
-   if (wait)
-   {
-     if(*wait < 10) *wait = 10;
-     
-     for(c = 0; c < *wait;) {
-       if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
-         AT91C_BASE_SSC->SSC_THR = 0x00;               // For exact timing!
-         c++;
-       }
-       if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
-         volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR;
-         (void)r;
-       }
-       WDT_HIT();
-     }
-
-   }
-
-
-  uint8_t sendbyte;
-  bool firstpart = TRUE;
-  c = 0;
-  for(;;) {
-    if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
-
-      // DOUBLE THE SAMPLES!
-      if(firstpart) {
-       sendbyte = (cmd[c] & 0xf0) | (cmd[c] >> 4); 
-      }
-      else {
-       sendbyte = (cmd[c] & 0x0f) | (cmd[c] << 4);
-        c++;
-      }
-      if(sendbyte == 0xff) {
-       sendbyte = 0xfe;
-      }
-      AT91C_BASE_SSC->SSC_THR = sendbyte;
-      firstpart = !firstpart;
+       int c;
+       volatile uint32_t r;
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+       AT91C_BASE_SSC->SSC_THR = 0x00;
+       FpgaSetupSsc();

 
 

-      if(c >= len) {
-        break;
-      }
-    }
-    if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
-      volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR;
-      (void)r;
-    }
-    WDT_HIT();
-  }
-  if (samples) *samples = (c + *wait) << 3;
-}
+       if (wait) {
+               if(*wait < 10) *wait = 10;

 
 

+               for(c = 0; c < *wait;) {
+                       if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
+                               AT91C_BASE_SSC->SSC_THR = 0x00;         // For exact timing!
+                               c++;
+                       }
+                       if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
+                               r = AT91C_BASE_SSC->SSC_RHR;
+                               (void)r;
+                       }
+                       WDT_HIT();
+               }
+       }
+
+
+       uint8_t sendbyte;
+       bool firstpart = TRUE;
+       c = 0;
+       for(;;) {
+               if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
+
+                       // DOUBLE THE SAMPLES!
+                       if(firstpart) {
+                               sendbyte = (cmd[c] & 0xf0) | (cmd[c] >> 4); 
+                       }
+                       else {
+                               sendbyte = (cmd[c] & 0x0f) | (cmd[c] << 4);
+                               c++;
+                       }
+
+                       if(sendbyte == 0xff)
+                               sendbyte = 0xfe;
+
+                       AT91C_BASE_SSC->SSC_THR = sendbyte;
+                       firstpart = !firstpart;
+
+                       if(c >= len) break;
+
+               }
+               if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
+                       r = AT91C_BASE_SSC->SSC_RHR;
+                       (void)r;
+               }
+               
+               WDT_HIT();
+       }
+       if (samples && wait) *samples = (c + *wait) << 3;
+}

 
 //-----------------------------------------------------------------------------
 // Prepare iClass reader command to send to FPGA
 
 //-----------------------------------------------------------------------------
 // Prepare iClass reader command to send to FPGA


@@ -1471,18 +1489,18 @@ void CodeIClassCommand(const uint8_t * cmd, int len)
 
 void ReaderTransmitIClass(uint8_t* frame, int len)
 {
 
 void ReaderTransmitIClass(uint8_t* frame, int len)
 {

-       int wait = 0;
-       int samples = 0;
+  int wait = 0;
+  int samples = 0;

 
 

-       // This is tied to other size changes
-       CodeIClassCommand(frame,len);
+  // This is tied to other size changes
+  CodeIClassCommand(frame,len);

 
 

-       // Select the card
-       TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait);
-       if(trigger)
-               LED_A_ON();
+  // Select the card
+  TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait);
+  if(trigger)
+       LED_A_ON();

 
 

-       // Store reader command in buffer
+  // Store reader command in buffer

        if (tracing) {
                uint8_t par[MAX_PARITY_SIZE];
                GetParity(frame, len, par);
        if (tracing) {
                uint8_t par[MAX_PARITY_SIZE];
                GetParity(frame, len, par);


@@ -1518,16 +1536,22 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples,
        for(;;) {
                WDT_HIT();
 
        for(;;) {
                WDT_HIT();
 

-               if(BUTTON_PRESS()) return FALSE;
+           if(BUTTON_PRESS()) return FALSE;

 
                if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
                        AT91C_BASE_SSC->SSC_THR = 0x00;  // To make use of exact timing of next command from reader!!
                        if (elapsed) (*elapsed)++;
                }
                if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
 
                if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
                        AT91C_BASE_SSC->SSC_THR = 0x00;  // To make use of exact timing of next command from reader!!
                        if (elapsed) (*elapsed)++;
                }
                if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {

-                       if(c < timeout) { c++; } else { return FALSE; }
+                       if(c < timeout)
+                               c++;
+                       else 
+                               return FALSE;
+                       

                        b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
                        b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;

+                       

                        skip = !skip;
                        skip = !skip;

+                       

                        if(skip) continue;
                
                        if(ManchesterDecoding(b & 0x0f)) {
                        if(skip) continue;
                
                        if(ManchesterDecoding(b & 0x0f)) {


@@ -1556,9 +1580,9 @@ void setupIclassReader()
 {
     FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
     // Reset trace buffer
 {
     FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
     // Reset trace buffer

-       set_tracing(TRUE);

        clear_trace();
        clear_trace();

-
+       set_tracing(TRUE);
+       

     // Setup SSC
     FpgaSetupSsc();
     // Start from off (no field generated)
     // Setup SSC
     FpgaSetupSsc();
     // Start from off (no field generated)


@@ -1577,16 +1601,16 @@ void setupIclassReader()
 
 }
 
 
 }
 

-size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)
+bool sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)

 {
        while(retries-- > 0)
        {
                ReaderTransmitIClass(command, cmdsize);
                if(expected_size == ReaderReceiveIClass(resp)){
 {
        while(retries-- > 0)
        {
                ReaderTransmitIClass(command, cmdsize);
                if(expected_size == ReaderReceiveIClass(resp)){

-                       return 0;
+                       return true;

                }
        }
                }
        }

-       return 1;//Error
+       return false;//Error

 }
 
 /**
 }
 
 /**


@@ -1596,12 +1620,18 @@ size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t*
  *         1 = Got CSN
  *         2 = Got CSN and CC
  */
  *         1 = Got CSN
  *         2 = Got CSN and CC
  */

-uint8_t handshakeIclassTag(uint8_t *card_data)
+uint8_t handshakeIclassTag_ext(uint8_t *card_data, bool use_credit_key)

 {
        static uint8_t act_all[]     = { 0x0a };
 {
        static uint8_t act_all[]     = { 0x0a };

-       static uint8_t identify[]    = { 0x0c };
+       //static uint8_t identify[]    = { 0x0c };
+       static uint8_t identify[]    = { 0x0c, 0x00, 0x73, 0x33 };

        static uint8_t select[]      = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        static uint8_t readcheck_cc[]= { 0x88, 0x02 };
        static uint8_t select[]      = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        static uint8_t readcheck_cc[]= { 0x88, 0x02 };

+       if (use_credit_key)
+               readcheck_cc[0] = 0x18;
+       else
+               readcheck_cc[0] = 0x88;
+

        uint8_t resp[ICLASS_BUFFER_SIZE];
 
        uint8_t read_status = 0;
        uint8_t resp[ICLASS_BUFFER_SIZE];
 
        uint8_t read_status = 0;


@@ -1636,74 +1666,114 @@ uint8_t handshakeIclassTag(uint8_t *card_data)
        if(ReaderReceiveIClass(resp) == 8) {
                //Save CC (e-purse) in response data
                memcpy(card_data+8,resp,8);
        if(ReaderReceiveIClass(resp) == 8) {
                //Save CC (e-purse) in response data
                memcpy(card_data+8,resp,8);

-
-               //Got both
-               read_status = 2;
+               read_status++;

        }
 
        return read_status;
 }
        }
 
        return read_status;
 }

+uint8_t handshakeIclassTag(uint8_t *card_data){
+       return handshakeIclassTag_ext(card_data, false);
+}
+

 
 // Reader iClass Anticollission
 void ReaderIClass(uint8_t arg0) {
 
 
 // Reader iClass Anticollission
 void ReaderIClass(uint8_t arg0) {
 

-    uint8_t card_data[24]={0};
+       uint8_t card_data[6 * 8]={0};
+       memset(card_data, 0xFF, sizeof(card_data));

     uint8_t last_csn[8]={0};
        
     uint8_t last_csn[8]={0};
        

+       //Read conf block CRC(0x01) => 0xfa 0x22
+       uint8_t readConf[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x01, 0xfa, 0x22};
+       //Read conf block CRC(0x05) => 0xde  0x64
+       uint8_t readAA[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x05, 0xde, 0x64};
+
+

     int read_status= 0;
     int read_status= 0;

+       uint8_t result_status = 0;

     bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
     bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;

-       bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC;
+       bool try_once = arg0 & FLAG_ICLASS_READER_ONE_TRY;
+       bool use_credit_key = false;
+       if (arg0 & FLAG_ICLASS_READER_CEDITKEY)
+               use_credit_key = true;

        set_tracing(TRUE);
     setupIclassReader();
 
        set_tracing(TRUE);
     setupIclassReader();
 

-    size_t datasize = 0;
+       uint16_t tryCnt=0;

     while(!BUTTON_PRESS())
     {
     while(!BUTTON_PRESS())
     {

-
+               if (try_once && tryCnt > 5) break; 
+               
+               tryCnt++;
+               

                if(!tracing) {
                        DbpString("Trace full");
                        break;
                }
                WDT_HIT();
 
                if(!tracing) {
                        DbpString("Trace full");
                        break;
                }
                WDT_HIT();
 

-               read_status = handshakeIclassTag(card_data);
+               read_status = handshakeIclassTag_ext(card_data, use_credit_key);

 
                if(read_status == 0) continue;
 
                if(read_status == 0) continue;

-               if(read_status == 1) datasize = 8;
-               if(read_status == 2) datasize = 16;
+               if(read_status == 1) result_status = FLAG_ICLASS_READER_CSN;
+               if(read_status == 2) result_status = FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CC;
+
+               // handshakeIclass returns CSN|CC, but the actual block
+               // layout is CSN|CONFIG|CC, so here we reorder the data,
+               // moving CC forward 8 bytes
+               memcpy(card_data+16,card_data+8, 8);
+               //Read block 1, config
+               if(arg0 & FLAG_ICLASS_READER_CONF)
+               {
+                       if(sendCmdGetResponseWithRetries(readConf, sizeof(readConf),card_data+8, 10, 10))
+                       {
+                               result_status |= FLAG_ICLASS_READER_CONF;
+                       } else {
+                               Dbprintf("Failed to dump config block");
+                       }
+               }

 
 

-               //Todo, read the public blocks 1,5 aswell:
-               //
-               // 0 : CSN (we already have)
+               //Read block 5, AA
+               if(arg0 & FLAG_ICLASS_READER_AA){
+                       if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA),card_data+(8*4), 10, 10))
+                       {
+                               result_status |= FLAG_ICLASS_READER_AA;
+                       } else {
+                               //Dbprintf("Failed to dump AA block");
+                       }
+               }
+
+               // 0 : CSN

                // 1 : Configuration
                // 1 : Configuration

-               // 2 : e-purse (we already have)
-               // (3,4 write-only)
+               // 2 : e-purse
+               // (3,4 write-only, kc and kd)

                // 5 Application issuer area
                //
                //Then we can 'ship' back the 8 * 5 bytes of data,
                // with 0xFF:s in block 3 and 4.
 
                // 5 Application issuer area
                //
                //Then we can 'ship' back the 8 * 5 bytes of data,
                // with 0xFF:s in block 3 and 4.
 

-               LED_B_ON();
-               //Send back to client, but don't bother if we already sent this
-               if(memcmp(last_csn, card_data, 8) != 0)
+                    LED_B_ON();
+                    //Send back to client, but don't bother if we already sent this
+                    if(memcmp(last_csn, card_data, 8) != 0)

                {
                {

-
-                       if(!get_cc || (get_cc && read_status == 2))
+                       // If caller requires that we get CC, continue until we got it
+                       if( (arg0 & read_status & FLAG_ICLASS_READER_CC) || !(arg0 & FLAG_ICLASS_READER_CC))

                        {
                        {

-                               cmd_send(CMD_ACK,read_status,0,0,card_data,datasize);
+                               cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data));

                                if(abort_after_read) {
                                        LED_A_OFF();
                                if(abort_after_read) {
                                        LED_A_OFF();

+                                       set_tracing(FALSE);     

                                        return;
                                }
                                //Save that we already sent this....
                                memcpy(last_csn, card_data, 8);
                        }
                                        return;
                                }
                                //Save that we already sent this....
                                memcpy(last_csn, card_data, 8);
                        }

-                       //If 'get_cc' was specified and we didn't get a CC, we'll just keep trying...

                }
                LED_B_OFF();
     }
     cmd_send(CMD_ACK,0,0,0,card_data, 0);
     LED_A_OFF();
                }
                LED_B_OFF();
     }
     cmd_send(CMD_ACK,0,0,0,card_data, 0);
     LED_A_OFF();

+       set_tracing(FALSE);             

 }
 
 void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
 }
 
 void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {


@@ -1754,7 +1824,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                //for now replay captured auth (as cc not updated)
                memcpy(check+5,MAC,4);
 
                //for now replay captured auth (as cc not updated)
                memcpy(check+5,MAC,4);
 

-               if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))
+               if(!sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))

                {
                        Dbprintf("Error: Authentication Fail!");
                        continue;
                {
                        Dbprintf("Error: Authentication Fail!");
                        continue;


@@ -1766,18 +1836,18 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                read[2] = crc >> 8;
                read[3] = crc & 0xff;
 
                read[2] = crc >> 8;
                read[3] = crc & 0xff;
 

-               if(sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))
+               if(!sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))

                {
                        Dbprintf("Dump config (block 1) failed");
                        continue;
                }
 
                {
                        Dbprintf("Dump config (block 1) failed");
                        continue;
                }
 

-               mem=resp[5];
-               memory.k16= (mem & 0x80);
-               memory.book= (mem & 0x20);
-               memory.k2= (mem & 0x8);
-               memory.lockauth= (mem & 0x2);
-               memory.keyaccess= (mem & 0x1);
+                mem=resp[5];
+                memory.k16= (mem & 0x80);
+                memory.book= (mem & 0x20);
+                memory.k2= (mem & 0x8);
+                memory.lockauth= (mem & 0x2);
+                memory.keyaccess= (mem & 0x1);

 
                cardsize = memory.k16 ? 255 : 32;
                WDT_HIT();
 
                cardsize = memory.k16 ? 255 : 32;
                WDT_HIT();


@@ -1785,7 +1855,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                memset(card_data,0x0,USB_CMD_DATA_SIZE);
                uint8_t failedRead =0;
                uint32_t stored_data_length =0;
                memset(card_data,0x0,USB_CMD_DATA_SIZE);
                uint8_t failedRead =0;
                uint32_t stored_data_length =0;

-               //then loop around remaining blocks
+                               //then loop around remaining blocks

                for(int block=0; block < cardsize; block++){
 
                        read[1]= block;
                for(int block=0; block < cardsize; block++){
 
                        read[1]= block;


@@ -1793,12 +1863,12 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                        read[2] = crc >> 8;
                        read[3] = crc & 0xff;
 
                        read[2] = crc >> 8;
                        read[3] = crc & 0xff;
 

-                       if(!sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))
+                       if(sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))

                        {
                                Dbprintf("     %02x: %02x %02x %02x %02x %02x %02x %02x %02x",
                        {
                                Dbprintf("     %02x: %02x %02x %02x %02x %02x %02x %02x %02x",

-                                                block, resp[0], resp[1], resp[2],
-                                               resp[3], resp[4], resp[5],
-                                               resp[6], resp[7]);
+                                       block, resp[0], resp[1], resp[2],
+                                       resp[3], resp[4], resp[5],
+                                       resp[6], resp[7]);

 
                                //Fill up the buffer
                                memcpy(card_data+stored_data_length,resp,8);
 
                                //Fill up the buffer
                                memcpy(card_data+stored_data_length,resp,8);


@@ -1814,8 +1884,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                                        stored_data_length = 0;
                                        failedRead = 0;
                                }
                                        stored_data_length = 0;
                                        failedRead = 0;
                                }

-
-                       }else{
+                       } else {

                                failedRead = 1;
                                stored_data_length +=8;//Otherwise, data becomes misaligned
                                Dbprintf("Failed to dump block %d", block);
                                failedRead = 1;
                                stored_data_length +=8;//Otherwise, data becomes misaligned
                                Dbprintf("Failed to dump block %d", block);


@@ -1842,132 +1911,132 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                         card_data, 0);
 
        LED_A_OFF();
                         card_data, 0);
 
        LED_A_OFF();

+       set_tracing(FALSE);             

 }
 
 }
 

-//2. Create Read method (cut-down from above) based off responses from 1. 
-//   Since we have the MAC could continue to use replay function.
-//3. Create Write method
-/*
-void IClass_iso14443A_write(uint8_t arg0, uint8_t blockNo, uint8_t *data, uint8_t *MAC) {
-       uint8_t act_all[]     = { 0x0a };
-       uint8_t identify[]    = { 0x0c };
-       uint8_t select[]      = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-       uint8_t readcheck_cc[]= { 0x88, 0x02 };
-       uint8_t check[]       = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-       uint8_t read[]        = { 0x0c, 0x00, 0x00, 0x00 };
-       uint8_t write[]       = { 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-       
-    uint16_t crc = 0;
-       
-       uint8_t* resp = (((uint8_t *)BigBuf) + 3560);
-
-       // Reset trace buffer
-    memset(trace, 0x44, RECV_CMD_OFFSET);
-       traceLen = 0;
-
-       // Setup SSC
-       FpgaSetupSsc();
-       // Start from off (no field generated)
-       // Signal field is off with the appropriate LED
-       LED_D_OFF();
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       SpinDelay(200);
+void iClass_ReadCheck(uint8_t  blockNo, uint8_t keyType) {
+       uint8_t readcheck[] = { keyType, blockNo };
+       uint8_t resp[] = {0,0,0,0,0,0,0,0};
+       size_t isOK = 0;
+       isOK = sendCmdGetResponseWithRetries(readcheck, sizeof(readcheck), resp, sizeof(resp), 6);
+       cmd_send(CMD_ACK,isOK,0,0,0,0);
+}

 
 

-       SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+void iClass_Authentication(uint8_t *MAC) {
+       uint8_t check[] = { ICLASS_CMD_CHECK, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+       uint8_t resp[ICLASS_BUFFER_SIZE];
+       memcpy(check+5,MAC,4);
+       bool isOK;
+       isOK = sendCmdGetResponseWithRetries(check, sizeof(check), resp, 4, 6);
+       cmd_send(CMD_ACK,isOK,0,0,0,0);
+}
+bool iClass_ReadBlock(uint8_t blockNo, uint8_t *readdata) {
+       uint8_t readcmd[] = {ICLASS_CMD_READ_OR_IDENTIFY, blockNo, 0x00, 0x00}; //0x88, 0x00 // can i use 0C?
+       char bl = blockNo;
+       uint16_t rdCrc = iclass_crc16(&bl, 1);
+       readcmd[2] = rdCrc >> 8;
+       readcmd[3] = rdCrc & 0xff;
+       uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK = false;
+
+       //readcmd[1] = blockNo;
+       isOK = sendCmdGetResponseWithRetries(readcmd, sizeof(readcmd), resp, 10, 10);
+       memcpy(readdata, resp, sizeof(resp));
+
+       return isOK;
+}

 
 

-       // Now give it time to spin up.
-       // Signal field is on with the appropriate LED
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
-       SpinDelay(200);
+void iClass_ReadBlk(uint8_t blockno) {
+       uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK = false;
+       isOK = iClass_ReadBlock(blockno, readblockdata);
+       cmd_send(CMD_ACK, isOK, 0, 0, readblockdata, 8);
+}

 
 

-       LED_A_ON();
+void iClass_Dump(uint8_t blockno, uint8_t numblks) {
+       uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK = false;
+       uint8_t blkCnt = 0;

 
 

-       for(int i=0;i<1;i++) {
-       
-               if(traceLen > TRACE_SIZE) {
-                       DbpString("Trace full");
+       BigBuf_free();
+       uint8_t *dataout = BigBuf_malloc(255*8);
+       if (dataout == NULL){
+               Dbprintf("out of memory");
+               OnError(1);
+               return;
+       }
+       memset(dataout,0xFF,255*8);
+
+       for (;blkCnt < numblks; blkCnt++) {
+               isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);
+               if (!isOK || (readblockdata[0] == 0xBB || readblockdata[7] == 0xBB || readblockdata[2] == 0xBB)) { //try again
+                       isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);
+                       if (!isOK) {
+                               Dbprintf("Block %02X failed to read", blkCnt+blockno);

                        break;
                }
                        break;
                }

-               
-               if (BUTTON_PRESS()) break;
-
-               // Send act_all
-               ReaderTransmitIClass(act_all, 1);
-               // Card present?
-               if(ReaderReceiveIClass(resp)) {
-                       ReaderTransmitIClass(identify, 1);
-                       if(ReaderReceiveIClass(resp) == 10) {
-                               // Select card          
-                               memcpy(&select[1],resp,8);
-                               ReaderTransmitIClass(select, sizeof(select));
-
-                               if(ReaderReceiveIClass(resp) == 10) {
-                                       Dbprintf("     Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
-                                       resp[0], resp[1], resp[2],
-                                       resp[3], resp[4], resp[5],
-                                       resp[6], resp[7]);
-                               }
-                               // Card selected
-                               Dbprintf("Readcheck on Sector 2");
-                               ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
-                               if(ReaderReceiveIClass(resp) == 8) {
-                                  Dbprintf("     CC: %02x %02x %02x %02x %02x %02x %02x %02x",
-                                       resp[0], resp[1], resp[2],
-                                       resp[3], resp[4], resp[5],
-                                       resp[6], resp[7]);
-                               }else return;
-                               Dbprintf("Authenticate");
-                               //for now replay captured auth (as cc not updated)
-                               memcpy(check+5,MAC,4);
-                               Dbprintf("     AA: %02x %02x %02x %02x",
-                                       check[5], check[6], check[7],check[8]);
-                               ReaderTransmitIClass(check, sizeof(check));
-                               if(ReaderReceiveIClass(resp) == 4) {
-                                  Dbprintf("     AR: %02x %02x %02x %02x",
-                                       resp[0], resp[1], resp[2],resp[3]);
+               }
+               memcpy(dataout+(blkCnt*8),readblockdata,8);
+       }
+       //return pointer to dump memory in arg3
+       cmd_send(CMD_ACK,isOK,blkCnt,BigBuf_max_traceLen(),0,0);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       LEDsoff();
+       BigBuf_free();
+}
+
+bool iClass_WriteBlock_ext(uint8_t blockNo, uint8_t *data) {
+       uint8_t write[] = { ICLASS_CMD_UPDATE, blockNo, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+       //uint8_t readblockdata[10];
+       //write[1] = blockNo;
+       memcpy(write+2, data, 12); // data + mac
+       uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK;
+       isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+       if (isOK) {
+               //Dbprintf("WriteResp: %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",resp[0],resp[1],resp[2],resp[3],resp[4],resp[5],resp[6],resp[7],resp[8],resp[9]);
+               if (memcmp(write+2,resp,8)) {
+                       //error try again
+                       isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+               }
+       }
+       return isOK;
+}
+
+void iClass_WriteBlock(uint8_t blockNo, uint8_t *data) {
+       bool isOK = iClass_WriteBlock_ext(blockNo, data);
+       if (isOK){
+               Dbprintf("Write block [%02x] successful",blockNo);

                                }else {
                                }else {

-                                 Dbprintf("Error: Authentication Fail!");
-                                 return;
-                               }
-                               Dbprintf("Write Block");
-                               
-                               //read configuration for max block number
-                               read_success=false;
-                               read[1]=1;
-                               uint8_t *blockno=&read[1];
-                               crc = iclass_crc16((char *)blockno,1);
-                               read[2] = crc >> 8;
-                               read[3] = crc & 0xff;
-                               while(!read_success){
-                                     ReaderTransmitIClass(read, sizeof(read));
-                                     if(ReaderReceiveIClass(resp) == 10) {
-                                        read_success=true;
-                                        mem=resp[5];
-                                        memory.k16= (mem & 0x80);
-                                        memory.book= (mem & 0x20);
-                                        memory.k2= (mem & 0x8);
-                                        memory.lockauth= (mem & 0x2);
-                                        memory.keyaccess= (mem & 0x1);
-
-                                     }
-                               }
-                               if (memory.k16){
-                                 cardsize=255;
-                               }else cardsize=32;
-                               //check card_size
-                               
-                               memcpy(write+1,blockNo,1);
-                               memcpy(write+2,data,8);
-                               memcpy(write+10,mac,4);
-                               while(!send_success){
-                                 ReaderTransmitIClass(write, sizeof(write));
-                                 if(ReaderReceiveIClass(resp) == 10) {
-                                   write_success=true;
-                               }
-                       }//
+               Dbprintf("Write block [%02x] failed",blockNo);          
+       }
+       cmd_send(CMD_ACK,isOK,0,0,0,0); 
+}
+
+void iClass_Clone(uint8_t startblock, uint8_t endblock, uint8_t *data) {
+       int i;
+       int written = 0;
+       int total_block = (endblock - startblock) + 1;
+       for (i = 0; i < total_block;i++){
+               // block number
+               if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
+                       Dbprintf("Write block [%02x] successful",i + startblock);
+                       written++;
+               } else {
+                       if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
+                               Dbprintf("Write block [%02x] successful",i + startblock);
+                               written++;
+                       } else {
+                               Dbprintf("Write block [%02x] failed",i + startblock);
+                       }

                }
                }

-               WDT_HIT();

        }
        }

-       
-       LED_A_OFF();
-}*/
+       if (written == total_block)
+               Dbprintf("Clone complete");
+       else
+               Dbprintf("Clone incomplete");   
+
+       cmd_send(CMD_ACK,1,0,0,0,0);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       LEDsoff();
+}