iso14443b modifications (#804)

[proxmark3-svn] / armsrc / iso14443b.c

diff --git a/armsrc/iso14443b.c b/armsrc/iso14443b.c
index 76d7a0753845f3453de413fe6c0a5ff7e96c5edd..5e770a776737af05c741d74ce06c86eb1979bade 100644 (file)
--- a/armsrc/iso14443b.c
+++ b/armsrc/iso14443b.c
@@ -10,12 +10,14 @@
 // the `fake tag' modes.
 //-----------------------------------------------------------------------------
 
+#include "iso14443b.h"
+
 #include "proxmark3.h"
 #include "apps.h"
 #include "util.h"
 #include "string.h"
-
 #include "iso14443crc.h"
+#include "fpgaloader.h"
 
 #define RECEIVE_SAMPLES_TIMEOUT 1000 // TR0 max is 256/fs = 256/(848kHz) = 302us or 64 samples from FPGA. 1000 seems to be much too high?
 #define ISO14443B_DMA_BUFFER_SIZE 128
@@ -325,6 +327,7 @@ static int GetIso14443bCommandFromReader(uint8_t *received, uint16_t *len)
 //-----------------------------------------------------------------------------
 void SimulateIso14443bTag(void)
 {
+       LED_A_ON();
        // the only commands we understand is WUPB, AFI=0, Select All, N=1:
        static const uint8_t cmd1[] = { 0x05, 0x00, 0x08, 0x39, 0x73 }; // WUPB
        // ... and REQB, AFI=0, Normal Request, N=1:
@@ -463,6 +466,9 @@ void SimulateIso14443bTag(void)
                LogTrace(resp, respLen, 0, 0, NULL, false);
 
        }
+       
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       LED_A_OFF();
 }
 
 //=============================================================================
@@ -859,6 +865,7 @@ static void CodeAndTransmit14443bAsReader(const uint8_t *cmd, int len)
  */
 int iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *response)
 {
+       LED_A_ON();
        uint8_t message_frame[message_length + 4];
        // PCB
        message_frame[0] = 0x0A | pcb_blocknum;
@@ -873,8 +880,10 @@ int iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *respo
        CodeAndTransmit14443bAsReader(message_frame, message_length + 4);
        // get response
        GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
+       FpgaDisableTracing();
        if(Demod.len < 3)
        {
+               LED_A_OFF();
                return 0;
        }
        // TODO: Check CRC
@@ -883,6 +892,7 @@ int iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *respo
        {
                memcpy(response, Demod.output, Demod.len);
        }
+       LED_A_OFF();
        return Demod.len;
 }
 
@@ -955,6 +965,7 @@ void iso14443b_setup() {
 //-----------------------------------------------------------------------------
 void ReadSTMemoryIso14443b(uint32_t dwLast)
 {
+       LED_A_ON();
        uint8_t i = 0x00;
 
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
@@ -982,9 +993,9 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
        GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
 
        if (Demod.len == 0) {
-               DbpString("No response from tag");
-               LED_D_OFF();
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+               DbpString("No response from tag");
+               LEDsoff();
                return;
        } else {
                Dbprintf("Randomly generated Chip ID (+ 2 byte CRC): %02x %02x %02x",
@@ -999,24 +1010,24 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
        CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
        GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
        if (Demod.len != 3) {
-               Dbprintf("Expected 3 bytes from tag, got %d", Demod.len);
-               LED_D_OFF();
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+               Dbprintf("Expected 3 bytes from tag, got %d", Demod.len);
+               LEDsoff();
                return;
        }
        // Check the CRC of the answer:
        ComputeCrc14443(CRC_14443_B, Demod.output, 1 , &cmd1[2], &cmd1[3]);
        if(cmd1[2] != Demod.output[1] || cmd1[3] != Demod.output[2]) {
-               DbpString("CRC Error reading select response.");
-               LED_D_OFF();
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+               DbpString("CRC Error reading select response.");
+               LEDsoff();
                return;
        }
        // Check response from the tag: should be the same UID as the command we just sent:
        if (cmd1[1] != Demod.output[0]) {
-               Dbprintf("Bad response to SELECT from Tag, aborting: %02x %02x", cmd1[1], Demod.output[0]);
-               LED_D_OFF();
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+               Dbprintf("Bad response to SELECT from Tag, aborting: %02x %02x", cmd1[1], Demod.output[0]);
+               LEDsoff();
                return;
        }
 
@@ -1027,9 +1038,9 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
        CodeAndTransmit14443bAsReader(cmd1, 3); // Only first three bytes for this one
        GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
        if (Demod.len != 10) {
-               Dbprintf("Expected 10 bytes from tag, got %d", Demod.len);
-               LED_D_OFF();
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+               Dbprintf("Expected 10 bytes from tag, got %d", Demod.len);
+               LEDsoff();
                return;
        }
        // The check the CRC of the answer (use cmd1 as temporary variable):
@@ -1058,9 +1069,9 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
                CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
                GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
                if (Demod.len != 6) { // Check if we got an answer from the tag
-                       DbpString("Expected 6 bytes from tag, got less...");
-                       LED_D_OFF();
                        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+                       DbpString("Expected 6 bytes from tag, got less...");
+                       LEDsoff();
                        return;
                }
                // The check the CRC of the answer (use cmd1 as temporary variable):
@@ -1080,8 +1091,8 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
                i++;
        }
        
-       LED_D_OFF();
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       LEDsoff();
 }
 
 
@@ -1104,6 +1115,7 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
  */
 void RAMFUNC SnoopIso14443b(void)
 {
+       LED_A_ON();
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        BigBuf_free();
 
@@ -1219,13 +1231,13 @@ void RAMFUNC SnoopIso14443b(void)
        }
 
        FpgaDisableSscDma();
-       LEDsoff();
        DbpString("Snoop statistics:");
        Dbprintf("  Max behind by: %i", maxBehindBy);
        Dbprintf("  Uart State: %x", Uart.state);
        Dbprintf("  Uart ByteCnt: %i", Uart.byteCnt);
        Dbprintf("  Uart ByteCntMax: %i", Uart.byteCntMax);
        Dbprintf("  Trace length: %i", BigBuf_get_traceLen());
+       LEDsoff();
 }
 
 
@@ -1258,9 +1270,12 @@ void SendRawCommand14443B(uint32_t datalen, uint32_t recv, uint8_t powerfield, u
 
                if(recv) {
                        GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
+                       FpgaDisableTracing();
                        uint16_t iLen = MIN(Demod.len, USB_CMD_DATA_SIZE);
                        cmd_send(CMD_ACK, iLen, 0, 0, Demod.output, iLen);
                }
+
+               FpgaDisableTracing();
        }
 
        if(!powerfield) {