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CHG: code clean up. Have some questions regarding the CopyVikingTo method. The...
[proxmark3-svn] / client / cmdlft55xx.c
diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c
index 78d90e7cda17ee9f80f25daa030ce0e8bff91d29..1cadfe7a6b1cda5ce6f27d75fc4c25c26effe1d7 100644 (file)
--- a/client/cmdlft55xx.c
+++ b/client/cmdlft55xx.c
@@ -10,6 +10,7 @@
 #include <stdio.h>\r
 #include <string.h>\r
 #include <inttypes.h>\r
 #include <stdio.h>\r
 #include <string.h>\r
 #include <inttypes.h>\r
+#include <time.h>\r
 #include "proxmark3.h"\r
 #include "ui.h"\r
 #include "graph.h"\r
 #include "proxmark3.h"\r
 #include "ui.h"\r
 #include "graph.h"\r
@@ -20,198 +21,735 @@
 #include "cmdlft55xx.h"\r
 #include "util.h"\r
 #include "data.h"\r
 #include "cmdlft55xx.h"\r
 #include "util.h"\r
 #include "data.h"\r
+#include "lfdemod.h"\r
+#include "../common/crc.h"\r
+#include "../common/iso14443crc.h"\r
+#include "cmdhf14a.h"\r
 \r
 \r
+#define CONFIGURATION_BLOCK 0x00\r
+#define TRACE_BLOCK 0x01\r
+\r
+// Default configuration\r
+t55xx_conf_block_t config = { .modulation = DEMOD_ASK, .inverted = FALSE, .offset = 0x00, .block0 = 0x00};\r
+\r
+int usage_t55xx_config(){\r
+       PrintAndLog("Usage: lf t55xx config [d <demodulation>] [i 1] [o <offset>]");\r
+       PrintAndLog("Options:        ");\r
+       PrintAndLog("       h                        This help");\r
+       PrintAndLog("       b <8|16|32|40|50|64|100|128>     Set bitrate");\r
+       PrintAndLog("       d <FSK|FSK1|FSK1a|FSK2|FSK2a|ASK|PSK1|PSK2|NRZ|BI|BIa>  Set demodulation FSK / ASK / PSK / NRZ / Biphase / Biphase A");\r
+       PrintAndLog("       i [1]                            Invert data signal, defaults to normal");\r
+       PrintAndLog("       o [offset]                       Set offset, where data should start decode in bitstream");\r
+       PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+       PrintAndLog("      lf t55xx config d FSK          - FSK demodulation");\r
+       PrintAndLog("      lf t55xx config d FSK i 1      - FSK demodulation, inverse data");\r
+       PrintAndLog("      lf t55xx config d FSK i 1 o 3  - FSK demodulation, inverse data, offset=3,start from position 3 to decode data");\r
+       PrintAndLog("");\r
+       return 0;\r
+}\r
+int usage_t55xx_read(){\r
+       PrintAndLog("Usage:  lf t55xx read <block> <password>");\r
+    PrintAndLog("     <block>, block number to read. Between 0-7");\r
+    PrintAndLog("     <password>, OPTIONAL password (8 hex characters)");\r
+    PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+    PrintAndLog("      lf t55xx read 0           - read data from block 0");\r
+       PrintAndLog("      lf t55xx read 0 feedbeef  - read data from block 0 password feedbeef");\r
+       PrintAndLog("");\r
+       return 0;\r
+}\r
+int usage_t55xx_write(){\r
+       PrintAndLog("Usage:  lf t55xx wr <block> <data> [password]");\r
+       PrintAndLog("     <block>, block number to write. Between 0-7");\r
+       PrintAndLog("     <data>,  4 bytes of data to write (8 hex characters)");\r
+    PrintAndLog("     [password], OPTIONAL password 4bytes (8 hex characters)");\r
+    PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+       PrintAndLog("      lf t55xx wr 3 11223344           - write 11223344 to block 3");\r
+       PrintAndLog("      lf t55xx wr 3 11223344 feedbeef  - write 11223344 to block 3 password feedbeef");\r
+       PrintAndLog("");\r
+       return 0;\r
+}\r
+int usage_t55xx_trace() {\r
+       PrintAndLog("Usage:  lf t55xx trace [1]");\r
+       PrintAndLog("     [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");\r
+       PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+       PrintAndLog("      lf t55xx trace");\r
+       PrintAndLog("      lf t55xx trace 1");\r
+       PrintAndLog("");\r
+       return 0;\r
+}\r
+int usage_t55xx_info() {\r
+       PrintAndLog("Usage:  lf t55xx info [1]");\r
+       PrintAndLog("     [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");\r
+       PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+       PrintAndLog("      lf t55xx info");\r
+       PrintAndLog("      lf t55xx info 1");\r
+       PrintAndLog("");\r
+       return 0;\r
+}\r
+int usage_t55xx_dump(){\r
+       PrintAndLog("Usage:  lf t55xx dump <password>");\r
+    PrintAndLog("     <password>, OPTIONAL password 4bytes (8 hex symbols)");\r
+       PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+       PrintAndLog("      lf t55xx dump");\r
+       PrintAndLog("      lf t55xx dump feedbeef");\r
+       PrintAndLog("");\r
+       return 0;\r
+}\r
+int usage_t55xx_detect(){\r
+       PrintAndLog("Usage:  lf t55xx detect");\r
+       PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+       PrintAndLog("      lf t55xx detect");\r
+       PrintAndLog("      lf t55xx detect 1");\r
+       PrintAndLog("");\r
+       return 0;\r
+}\r
 \r
 \r
-#define LF_TRACE_BUFF_SIZE 12000 // 32 x 32 x 10  (32 bit times numofblock (7), times clock skip..)\r
-#define LF_BITSSTREAM_LEN 1000 // more then 1000 bits shouldn't happend..  8block * 4 bytes * 8bits = \r
 static int CmdHelp(const char *Cmd);\r
 \r
 static int CmdHelp(const char *Cmd);\r
 \r
+int CmdT55xxSetConfig(const char *Cmd) {\r
 \r
 \r
-int CmdReadBlk(const char *Cmd)\r
-{\r
+       uint8_t offset = 0;\r
+       bool errors = FALSE;\r
+       uint8_t cmdp = 0;\r
+       char modulation[5] = {0x00};\r
+       char tmp = 0x00;\r
+       uint8_t bitRate = 0;\r
+       uint8_t rates[9] = {8,16,32,40,50,64,100,128,0};\r
+       while(param_getchar(Cmd, cmdp) != 0x00 && !errors)\r
+       {\r
+               tmp = param_getchar(Cmd, cmdp);\r
+               switch(tmp)\r
+               {\r
+               case 'h':\r
+               case 'H':\r
+                       return usage_t55xx_config();\r
+               case 'b':\r
+                       errors |= param_getdec(Cmd, cmdp+1, &bitRate);\r
+                       if ( !errors){\r
+                               uint8_t i = 0;\r
+                               for (; i < 9; i++){\r
+                                       if (rates[i]==bitRate) {\r
+                                               config.bitrate = i;\r
+                                               break;\r
+                                       }\r
+                               }\r
+                               if (i==9) errors = TRUE;\r
+                       }\r
+                       cmdp+=2;\r
+                       break;\r
+               case 'd':\r
+                       param_getstr(Cmd, cmdp+1, modulation);\r
+                       cmdp += 2;\r
+\r
+                       if ( strcmp(modulation, "FSK" ) == 0) {\r
+                               config.modulation = DEMOD_FSK;\r
+                       } else if ( strcmp(modulation, "FSK1" ) == 0) {\r
+                               config.modulation = DEMOD_FSK1;\r
+                               config.inverted=1;\r
+                       } else if ( strcmp(modulation, "FSK1a" ) == 0) {\r
+                               config.modulation = DEMOD_FSK1a;\r
+                               config.inverted=0;\r
+                       } else if ( strcmp(modulation, "FSK2" ) == 0) {\r
+                               config.modulation = DEMOD_FSK2;\r
+                               config.inverted=0;\r
+                       } else if ( strcmp(modulation, "FSK2a" ) == 0) {\r
+                               config.modulation = DEMOD_FSK2a;\r
+                               config.inverted=1;\r
+                       } else if ( strcmp(modulation, "ASK" ) == 0) {\r
+                               config.modulation = DEMOD_ASK;\r
+                       } else if ( strcmp(modulation, "NRZ" ) == 0) {\r
+                               config.modulation = DEMOD_NRZ;\r
+                       } else if ( strcmp(modulation, "PSK1" ) == 0) {\r
+                               config.modulation = DEMOD_PSK1;\r
+                       } else if ( strcmp(modulation, "PSK2" ) == 0) {\r
+                               config.modulation = DEMOD_PSK2;\r
+                       } else if ( strcmp(modulation, "PSK3" ) == 0) {\r
+                               config.modulation = DEMOD_PSK3;\r
+                       } else if ( strcmp(modulation, "BIa" ) == 0) {\r
+                               config.modulation = DEMOD_BIa;\r
+                               config.inverted=1;\r
+                       } else if ( strcmp(modulation, "BI" ) == 0) {\r
+                               config.modulation = DEMOD_BI;\r
+                               config.inverted=0;\r
+                       } else {\r
+                               PrintAndLog("Unknown modulation '%s'", modulation);\r
+                               errors = TRUE;\r
+                       }\r
+                       break;\r
+               case 'i':\r
+                       config.inverted = param_getchar(Cmd,cmdp+1) == '1';\r
+                       cmdp+=2;\r
+                       break;\r
+               case 'o':\r
+                       errors |= param_getdec(Cmd, cmdp+1, &offset);\r
+                       if ( !errors )\r
+                               config.offset = offset;\r
+                       cmdp+=2;\r
+                       break;\r
+               default:\r
+                       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
+                       errors = TRUE;\r
+                       break;\r
+               }\r
+       }\r
+\r
+       // No args\r
+       if (cmdp == 0) {\r
+               printConfiguration( config );\r
+               return 0;\r
+       }\r
+       //Validations\r
+       if (errors)\r
+               return usage_t55xx_config();\r
+\r
+       config.block0 = 0;\r
+       printConfiguration ( config );\r
+       return 0;\r
+}\r
+\r
+int CmdT55xxReadBlock(const char *Cmd) {\r
        int block = -1;\r
        int block = -1;\r
-       sscanf(Cmd, "%d", &block);\r
+       int password = 0xFFFFFFFF; //default to blank Block 7\r
 \r
 \r
-       if ((block > 7) | (block < 0)) {\r
+       char cmdp = param_getchar(Cmd, 0);\r
+       if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_read();\r
+\r
+       int res = sscanf(Cmd, "%d %x", &block, &password);\r
+\r
+       if ( res < 1 || res > 2 ) return usage_t55xx_read();\r
+       \r
+       if ((block < 0) | (block > 7)) {\r
                PrintAndLog("Block must be between 0 and 7");\r
                return 1;\r
        }       \r
 \r
                PrintAndLog("Block must be between 0 and 7");\r
                return 1;\r
        }       \r
 \r
-       UsbCommand c;\r
-       c.cmd = CMD_T55XX_READ_BLOCK;\r
-       c.d.asBytes[0] = 0x00;\r
-       c.arg[0] = 0;\r
-       c.arg[1] = block;\r
-       c.arg[2] = 0;\r
+       UsbCommand c = {CMD_T55XX_READ_BLOCK, {0, block, 0}};\r
+       c.d.asBytes[0] = 0x0; \r
+\r
+       //Password mode\r
+       if ( res == 2 ) {\r
+               c.arg[2] = password;\r
+               c.d.asBytes[0] = 0x1; \r
+       }\r
+\r
+       clearCommandBuffer();\r
        SendCommand(&c);\r
        SendCommand(&c);\r
-       WaitForResponse(CMD_ACK, NULL);\r
+       if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {\r
+               PrintAndLog("command execution time out");\r
+               return 2;\r
+       }\r
        \r
        \r
-       uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00};\r
+       uint8_t got[12000];\r
+       GetFromBigBuf(got,sizeof(got),0);\r
+       WaitForResponse(CMD_ACK,NULL);\r
+       setGraphBuf(got, 12000);\r
+       DemodBufferLen=0;\r
+       if (!DecodeT55xxBlock()) return 3;\r
+       char blk[10]={0};\r
+       sprintf(blk,"%d", block);\r
+       printT55xxBlock(blk);\r
+       return 0;\r
+}\r
+\r
+bool DecodeT55xxBlock(){\r
        \r
        \r
-       GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560);  //3560 -- should be offset..\r
-       WaitForResponseTimeout(CMD_ACK,NULL, 1500);\r
+       char buf[30] = {0x00};\r
+       char *cmdStr = buf;\r
+       int ans = 0;\r
+       uint8_t bitRate[8] = {8,16,32,40,50,64,100,128};\r
+       DemodBufferLen = 0x00;\r
 \r
 \r
-       for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) {\r
-               GraphBuffer[j] = (int)data[j];\r
+       //trim 1/2 a clock from beginning\r
+       //snprintf(cmdStr, sizeof(buf),"%d", bitRate[config.bitrate]/2 );\r
+       //CmdLtrim(cmdStr);\r
+       switch( config.modulation ){\r
+               case DEMOD_FSK:\r
+                       snprintf(cmdStr, sizeof(buf),"%d %d", bitRate[config.bitrate], config.inverted );\r
+                       ans = FSKrawDemod(cmdStr, FALSE);\r
+                       break;\r
+               case DEMOD_FSK1:\r
+               case DEMOD_FSK1a:\r
+                       snprintf(cmdStr, sizeof(buf),"%d %d 8 5", bitRate[config.bitrate], config.inverted );\r
+                       ans = FSKrawDemod(cmdStr, FALSE);\r
+                       break;\r
+               case DEMOD_FSK2:\r
+               case DEMOD_FSK2a:\r
+                       snprintf(cmdStr, sizeof(buf),"%d %d 10 8", bitRate[config.bitrate], config.inverted );\r
+                       ans = FSKrawDemod(cmdStr, FALSE);\r
+                       break;\r
+               case DEMOD_ASK:\r
+                       snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );\r
+                       ans = ASKDemod(cmdStr, FALSE, FALSE, 1);\r
+                       break;\r
+               case DEMOD_PSK1:\r
+                       snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );\r
+                       ans = PSKDemod(cmdStr, FALSE);\r
+                       break;\r
+               case DEMOD_PSK2: //inverted won't affect this\r
+               case DEMOD_PSK3: //not fully implemented\r
+                       snprintf(cmdStr, sizeof(buf),"%d 0 1", bitRate[config.bitrate] );\r
+                       ans = PSKDemod(cmdStr, FALSE);\r
+                       psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
+                       break;\r
+               case DEMOD_NRZ:\r
+                       snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );\r
+                       ans = NRZrawDemod(cmdStr, FALSE);\r
+                       break;\r
+               case DEMOD_BI:\r
+               case DEMOD_BIa:\r
+                       snprintf(cmdStr, sizeof(buf),"0 %d %d 0", bitRate[config.bitrate], config.inverted );\r
+                       ans = ASKbiphaseDemod(cmdStr, FALSE);\r
+                       break;\r
+               default:\r
+                       return FALSE;\r
        }\r
        }\r
-       GraphTraceLen = LF_TRACE_BUFF_SIZE;\r
-       ManchesterDemod(block);\r
-       RepaintGraphWindow();\r
-  return 0;\r
+       return (bool) ans;\r
 }\r
 \r
 }\r
 \r
-int CmdReadBlkPWD(const char *Cmd)\r
-{\r
-       int Block = -1; //default to invalid block\r
-       int Password = 0xFFFFFFFF; //default to blank Block 7\r
-       UsbCommand c;\r
+int CmdT55xxDetect(const char *Cmd){\r
 \r
 \r
-       sscanf(Cmd, "%d %x", &Block, &Password);\r
+       char cmdp = param_getchar(Cmd, 0);\r
+       if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')\r
+               return usage_t55xx_detect();\r
+       \r
+       if (strlen(Cmd)==0)\r
+               AquireData( CONFIGURATION_BLOCK );\r
 \r
 \r
-       if ((Block > 7) | (Block < 0)) {\r
-               PrintAndLog("Block must be between 0 and 7");\r
-               return 1;\r
-       }       \r
+       if ( !tryDetectModulation() )\r
+               PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");\r
+\r
+       return 0;\r
+}\r
 \r
 \r
-       PrintAndLog("Reading page 0 block %d pwd %08X", Block, Password);\r
+// detect configuration?\r
+bool tryDetectModulation(){\r
+       //char cmdStr[8] = {0};\r
+       uint8_t hits = 0;\r
+       t55xx_conf_block_t tests[15];\r
+       int bitRate=0;\r
+       uint8_t fc1 = 0, fc2 = 0, clk=0;\r
+       save_restoreGB(1);\r
+       if (GetFskClock("", FALSE, FALSE)){ \r
+               fskClocks(&fc1, &fc2, &clk, FALSE);\r
+               //sprintf(cmdStr,"%d", clk/2);\r
+               //CmdLtrim(cmdStr);\r
+               if ( FSKrawDemod("0 0", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)){\r
+                       tests[hits].modulation = DEMOD_FSK;\r
+                       if (fc1==8 && fc2 == 5)\r
+                               tests[hits].modulation = DEMOD_FSK1a;\r
+                       else if (fc1==10 && fc2 == 8)\r
+                               tests[hits].modulation = DEMOD_FSK2;\r
+                       tests[hits].bitrate = bitRate;\r
+                       tests[hits].inverted = FALSE;\r
+                       tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                       ++hits;\r
+               }\r
+               if ( FSKrawDemod("0 1", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)) {\r
+                       tests[hits].modulation = DEMOD_FSK;\r
+                       if (fc1 == 8 && fc2 == 5)\r
+                               tests[hits].modulation = DEMOD_FSK1;\r
+                       else if (fc1 == 10 && fc2 == 8)\r
+                               tests[hits].modulation = DEMOD_FSK2a;\r
 \r
 \r
-       c.cmd = CMD_T55XX_READ_BLOCK;\r
-       c.d.asBytes[0] = 0x1; //Password mode\r
-       c.arg[0] = 0;\r
-       c.arg[1] = Block;\r
-       c.arg[2] = Password;\r
-       SendCommand(&c);\r
-       WaitForResponse(CMD_ACK, NULL);\r
+                       tests[hits].bitrate = bitRate;\r
+                       tests[hits].inverted = TRUE;\r
+                       tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                       ++hits;\r
+               }\r
+       } else {\r
+               clk = GetAskClock("", FALSE, FALSE);\r
+               if (clk>0) {\r
+                       //sprintf(cmdStr,"%d", clk/2);\r
+                       //CmdLtrim(cmdStr);\r
+                       if ( ASKDemod("0 0 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {\r
+                               tests[hits].modulation = DEMOD_ASK;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = FALSE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+                       if ( ASKDemod("0 1 0", FALSE, FALSE, 1)  && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {\r
+                               tests[hits].modulation = DEMOD_ASK;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = TRUE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+                       if ( ASKbiphaseDemod("0 0 0 0", FALSE) && test(DEMOD_BI, &tests[hits].offset, &bitRate) ) {\r
+                               tests[hits].modulation = DEMOD_BI;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = FALSE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+                       if ( ASKbiphaseDemod("0 0 1 0", FALSE) && test(DEMOD_BIa, &tests[hits].offset, &bitRate) ) {\r
+                               tests[hits].modulation = DEMOD_BIa;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = TRUE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+               }\r
+               //undo trim from ask\r
+               save_restoreGB(0);\r
+               clk = GetNrzClock("", FALSE, FALSE);\r
+               if (clk>0) {\r
+                       //sprintf(cmdStr,"%d", clk/2);\r
+                       //CmdLtrim(cmdStr);\r
+                       if ( NRZrawDemod("0 0 1", FALSE)  && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {\r
+                               tests[hits].modulation = DEMOD_NRZ;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = FALSE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+\r
+                       if ( NRZrawDemod("0 1 1", FALSE)  && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {\r
+                               tests[hits].modulation = DEMOD_NRZ;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = TRUE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+               }\r
                \r
                \r
-       uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00};\r
+               //undo trim from nrz\r
+               save_restoreGB(0);\r
+               clk = GetPskClock("", FALSE, FALSE);\r
+               if (clk>0) {\r
+                       //PrintAndLog("clk %d",clk);\r
+                       //sprintf(cmdStr,"%d", clk/2);\r
+                       //CmdLtrim(cmdStr);     \r
+                       if ( PSKDemod("0 0 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {\r
+                               tests[hits].modulation = DEMOD_PSK1;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = FALSE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+                       if ( PSKDemod("0 1 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {\r
+                               tests[hits].modulation = DEMOD_PSK1;\r
+                               tests[hits].bitrate = bitRate;\r
+                               tests[hits].inverted = TRUE;\r
+                               tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                               ++hits;\r
+                       }\r
+                       // PSK2 - needs a call to psk1TOpsk2.\r
+                       if ( PSKDemod("0 0 1", FALSE)) {\r
+                               psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
+                               if (test(DEMOD_PSK2, &tests[hits].offset, &bitRate)){\r
+                                       tests[hits].modulation = DEMOD_PSK2;\r
+                                       tests[hits].bitrate = bitRate;\r
+                                       tests[hits].inverted = FALSE;\r
+                                       tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                                       ++hits;\r
+                               }\r
+                       } // inverse waves does not affect this demod\r
+                       // PSK3 - needs a call to psk1TOpsk2.\r
+                       if ( PSKDemod("0 0 1", FALSE)) {\r
+                               psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
+                               if (test(DEMOD_PSK3, &tests[hits].offset, &bitRate)){\r
+                                       tests[hits].modulation = DEMOD_PSK3;\r
+                                       tests[hits].bitrate = bitRate;\r
+                                       tests[hits].inverted = FALSE;\r
+                                       tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+                                       ++hits;\r
+                               }\r
+                       } // inverse waves does not affect this demod\r
+               }\r
+       }               \r
+       if ( hits == 1) {\r
+               config.modulation = tests[0].modulation;\r
+               config.bitrate = tests[0].bitrate;\r
+               config.inverted = tests[0].inverted;\r
+               config.offset = tests[0].offset;\r
+               config.block0 = tests[0].block0;\r
+               printConfiguration( config );\r
+               return TRUE;\r
+       }\r
+       \r
+       if ( hits > 1) {\r
+               PrintAndLog("Found [%d] possible matches for modulation.",hits);\r
+               for(int i=0; i<hits; ++i){\r
+                       PrintAndLog("--[%d]---------------", i+1);\r
+                       printConfiguration( tests[i] );\r
+               }\r
+       }\r
+       return FALSE;\r
+}\r
 \r
 \r
-       GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560);  //3560 -- should be offset..\r
-       WaitForResponseTimeout(CMD_ACK,NULL, 1500);\r
+bool testModulation(uint8_t mode, uint8_t modread){\r
+       switch( mode ){\r
+               case DEMOD_FSK:\r
+                       if (modread > 3 && modread < 8) return TRUE;\r
+                       break;\r
+               case DEMOD_ASK:\r
+                       if (modread == DEMOD_ASK) return TRUE;\r
+                       break;\r
+               case DEMOD_PSK1:\r
+                       if (modread == DEMOD_PSK1) return TRUE;\r
+                       break;\r
+               case DEMOD_PSK2:\r
+                       if (modread == DEMOD_PSK2) return TRUE;\r
+                       break;\r
+               case DEMOD_PSK3:\r
+                       if (modread == DEMOD_PSK3) return TRUE;\r
+                       break;\r
+               case DEMOD_NRZ:\r
+                       if (modread == DEMOD_NRZ) return TRUE;\r
+                       break;\r
+               case DEMOD_BI:\r
+                       if (modread == DEMOD_BI) return TRUE;\r
+                       break;\r
+               case DEMOD_BIa:\r
+                       if (modread == DEMOD_BIa) return TRUE;\r
+                       break;          \r
+               default:\r
+                       return FALSE;\r
+       }\r
+       return FALSE;\r
+}\r
 \r
 \r
-       for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) {\r
-               GraphBuffer[j] = ((int)data[j]);\r
+bool testBitRate(uint8_t readRate, uint8_t mod){\r
+       uint8_t expected[8] = {8, 16, 32, 40, 50, 64, 100, 128};\r
+       uint8_t detRate = 0;\r
+       switch( mod ){\r
+               case DEMOD_FSK:\r
+               case DEMOD_FSK1:\r
+               case DEMOD_FSK1a:\r
+               case DEMOD_FSK2:\r
+               case DEMOD_FSK2a:\r
+                       detRate = GetFskClock("",FALSE, FALSE); \r
+                       if (expected[readRate] == detRate) \r
+                               return TRUE;\r
+                       break;\r
+               case DEMOD_ASK:\r
+               case DEMOD_BI:\r
+               case DEMOD_BIa:\r
+                       detRate = GetAskClock("",FALSE, FALSE); \r
+                       if (expected[readRate] == detRate) \r
+                               return TRUE;\r
+                       break;\r
+               case DEMOD_PSK1:\r
+               case DEMOD_PSK2:\r
+               case DEMOD_PSK3:\r
+                       detRate = GetPskClock("",FALSE, FALSE); \r
+                       if (expected[readRate] == detRate)\r
+                               return TRUE;\r
+                       break;\r
+               case DEMOD_NRZ:\r
+                       detRate = GetNrzClock("",FALSE, FALSE); \r
+                       if (expected[readRate] == detRate)\r
+                               return TRUE;\r
+                       break;\r
+               default:\r
+                       return FALSE;\r
        }\r
        }\r
-       GraphTraceLen = LF_TRACE_BUFF_SIZE;\r
-       ManchesterDemod(Block); \r
-       RepaintGraphWindow();\r
-  return 0;\r
+       return FALSE;\r
 }\r
 \r
 }\r
 \r
-int CmdWriteBlk(const char *Cmd)\r
-{\r
-  int Block = 8; //default to invalid block\r
-  int Data = 0xFFFFFFFF; //default to blank Block \r
-  UsbCommand c;\r
+bool test(uint8_t mode, uint8_t *offset, int *fndBitRate){\r
 \r
 \r
-  sscanf(Cmd, "%x %d", &Data, &Block);\r
+       if ( DemodBufferLen < 64 ) return FALSE;\r
+       uint8_t si = 0;\r
+       for (uint8_t idx = 0; idx < 64; idx++){\r
+               si = idx;\r
+               if ( PackBits(si, 32, DemodBuffer) == 0x00 ) continue;\r
 \r
 \r
-  if (Block > 7) {\r
-       PrintAndLog("Block must be between 0 and 7");\r
-       return 1;\r
-  }    \r
+               uint8_t safer    = PackBits(si, 4, DemodBuffer); si += 4;     //master key\r
+               uint8_t resv     = PackBits(si, 4, DemodBuffer); si += 4;     //was 7 & +=7+3 //should be only 4 bits if extended mode\r
+               // 2nibble must be zeroed.\r
+               // moved test to here, since this gets most faults first.\r
+               if ( resv > 0x00) continue;\r
 \r
 \r
-  PrintAndLog("Writting block %d with data %08X", Block, Data);\r
+               uint8_t xtRate   = PackBits(si, 3, DemodBuffer); si += 3;     //extended mode part of rate\r
+               int bitRate  = PackBits(si, 3, DemodBuffer); si += 3;     //bit rate\r
+               if (bitRate > 7) continue;\r
+               uint8_t extend   = PackBits(si, 1, DemodBuffer); si += 1;     //bit 15 extended mode\r
+               uint8_t modread  = PackBits(si, 5, DemodBuffer); si += 5+2+1; \r
+               //uint8_t pskcr   = PackBits(si, 2, DemodBuffer); si += 2+1;  //could check psk cr\r
+               uint8_t nml01    = PackBits(si, 1, DemodBuffer); si += 1+5;   //bit 24, 30, 31 could be tested for 0 if not extended mode\r
+               uint8_t nml02    = PackBits(si, 2, DemodBuffer); si += 2;\r
+               \r
+               //if extended mode\r
+               bool extMode =( (safer == 0x6 || safer == 0x9) && extend) ? TRUE : FALSE;\r
 \r
 \r
-  c.cmd = CMD_T55XX_WRITE_BLOCK;\r
-  c.d.asBytes[0] = 0x0; //Normal mode\r
-  c.arg[0] = Data;\r
-  c.arg[1] = Block;\r
-  c.arg[2] = 0;\r
-  SendCommand(&c);\r
-  return 0;\r
+               if (!extMode){\r
+                       if (nml01 || nml02 || xtRate) continue;\r
+               }\r
+               //test modulation\r
+               if (!testModulation(mode, modread)) continue;\r
+               if (!testBitRate(bitRate, mode)) continue;\r
+               *fndBitRate = bitRate;\r
+               *offset = idx;\r
+               return TRUE;\r
+       }\r
+       return FALSE;\r
 }\r
 \r
 }\r
 \r
-int CmdWriteBlkPWD(const char *Cmd)\r
-{\r
-  int Block = 8; //default to invalid block\r
-  int Data = 0xFFFFFFFF; //default to blank Block \r
-  int Password = 0xFFFFFFFF; //default to blank Block 7\r
-  UsbCommand c;\r
-\r
-  sscanf(Cmd, "%x %d %x", &Data, &Block, &Password);\r
-\r
-  if (Block > 7) {\r
-       PrintAndLog("Block must be between 0 and 7");\r
-       return 1;\r
-  }    \r
-\r
-  PrintAndLog("Writting block %d with data %08X and password %08X", Block, Data, Password);\r
-\r
-  c.cmd = CMD_T55XX_WRITE_BLOCK;\r
-  c.d.asBytes[0] = 0x1; //Password mode\r
-  c.arg[0] = Data;\r
-  c.arg[1] = Block;\r
-  c.arg[2] = Password;\r
-  SendCommand(&c);\r
-  return 0;\r
+void printT55xxBlock(const char *blockNum){\r
+       \r
+       uint8_t i = config.offset;\r
+       uint8_t endpos = 32 + i;\r
+       uint32_t blockData = 0;\r
+       uint8_t bits[64] = {0x00};\r
+\r
+       if ( !DemodBufferLen) return;\r
+\r
+       if ( endpos > DemodBufferLen){\r
+               PrintAndLog("The configured offset %d is too big. Possible offset: %d)", i, DemodBufferLen-32);\r
+               return;\r
+       }\r
+\r
+       for (; i < endpos; ++i)\r
+               bits[i - config.offset]=DemodBuffer[i];\r
+\r
+       blockData = PackBits(0, 32, bits);\r
+       PrintAndLog("[%s] 0x%08X  %s", blockNum, blockData, sprint_bin(bits,32));\r
+}\r
+\r
+int special(const char *Cmd) {\r
+       uint32_t blockData = 0;\r
+       uint8_t bits[32] = {0x00};\r
+\r
+       PrintAndLog("[OFFSET] [DATA] [BINARY]");\r
+       PrintAndLog("----------------------------------------------------");\r
+       int i,j = 0;\r
+       for (; j < 64; ++j){\r
+               \r
+               for (i = 0; i < 32; ++i)\r
+                       bits[i]=DemodBuffer[j+i];\r
+       \r
+               blockData = PackBits(0, 32, bits);\r
+               \r
+               PrintAndLog("[%02d] 0x%08X  %s",j , blockData, sprint_bin(bits,32));    \r
+       }\r
+       return 0;\r
 }\r
 \r
 }\r
 \r
-int CmdReadTrace(const char *Cmd)\r
+void printConfiguration( t55xx_conf_block_t b){\r
+       PrintAndLog("Modulation : %s", GetSelectedModulationStr(b.modulation) );\r
+       PrintAndLog("Bit Rate   : %s", GetBitRateStr(b.bitrate) );\r
+       PrintAndLog("Inverted   : %s", (b.inverted) ? "Yes" : "No" );\r
+       PrintAndLog("Offset     : %d", b.offset);\r
+       PrintAndLog("Block0     : 0x%08X", b.block0);\r
+       PrintAndLog("");\r
+}\r
+\r
+int CmdT55xxWriteBlock(const char *Cmd)\r
 {\r
 {\r
+       int block = 8; //default to invalid block\r
+       int data = 0xFFFFFFFF; //default to blank Block \r
+       int password = 0xFFFFFFFF; //default to blank Block 7\r
+       \r
        char cmdp = param_getchar(Cmd, 0);\r
        char cmdp = param_getchar(Cmd, 0);\r
-\r
-       if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') {\r
-               PrintAndLog("Usage:  lf t55xx trace  [use data from Graphbuffer]");\r
-               PrintAndLog("     [use data from Graphbuffer], if not set, try reading data from tag.");\r
-               PrintAndLog("");\r
-               PrintAndLog("     sample: lf t55xx trace");\r
-               PrintAndLog("     sample: lf t55xx trace 1");\r
+       if (cmdp == 'h' || cmdp == 'H') {\r
+               usage_t55xx_write();\r
                return 0;\r
        }\r
                return 0;\r
        }\r
+  \r
+       int res = sscanf(Cmd, "%d %x %x",&block, &data, &password);\r
+       \r
+       if ( res < 2 || res > 3) {\r
+               usage_t55xx_write();\r
+               return 1;\r
+       }\r
 \r
 \r
-       if ( strlen(Cmd)==0){\r
-               UsbCommand c = {CMD_T55XX_READ_TRACE, {0, 0, 0}};\r
-               SendCommand(&c);\r
-               WaitForResponse(CMD_ACK, NULL);\r
-\r
-               uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00};\r
+       if (block > 7) {\r
+               PrintAndLog("Block number must be between 0 and 7");\r
+               return 1;\r
+       }\r
+       \r
+       UsbCommand resp;\r
+       UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {data, block, 0}};\r
+       c.d.asBytes[0] = 0x0; \r
 \r
 \r
-               GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560);  //3560 -- should be offset..\r
-               WaitForResponseTimeout(CMD_ACK,NULL, 1500);\r
+       PrintAndLog("Writing to block: %d  data  : 0x%08X", block, data);\r
 \r
 \r
-               for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) {\r
-                       GraphBuffer[j] = ((int)data[j]);\r
-               }\r
-               GraphTraceLen = LF_TRACE_BUFF_SIZE;\r
+       //Password mode\r
+       if (res == 3) {\r
+               c.arg[2] = password;\r
+               c.d.asBytes[0] = 0x1; \r
+               PrintAndLog("pwd   : 0x%08X", password);\r
+       }\r
+       clearCommandBuffer();\r
+       SendCommand(&c);\r
+       if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){\r
+               PrintAndLog("Error occurred, device did not ACK write operation. (May be due to old firmware)");\r
+               return -1;\r
        }\r
        }\r
+       return 0;\r
+}\r
+\r
+int CmdT55xxReadTrace(const char *Cmd)\r
+{\r
+       char cmdp = param_getchar(Cmd, 0);\r
        \r
        \r
-       uint8_t bits[LF_BITSSTREAM_LEN] = {0x00};\r
-       uint8_t * bitstream = bits;\r
+       if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') \r
+               return usage_t55xx_trace();\r
+\r
+       if (strlen(Cmd)==0)\r
+               AquireData( TRACE_BLOCK );\r
        \r
        \r
-       manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream, LF_BITSSTREAM_LEN);\r
-       RepaintGraphWindow();\r
+       if (!DecodeT55xxBlock()) return 1;\r
 \r
 \r
-       uint8_t si = 5;\r
-       uint32_t bl0     = PackBits(si, 32, bitstream);\r
-       uint32_t bl1     = PackBits(si+32, 32, bitstream);\r
+       if ( !DemodBufferLen) return 1;\r
        \r
        \r
-       uint32_t acl     = PackBits(si,  8, bitstream); si += 8;\r
-       uint32_t mfc     = PackBits(si, 8, bitstream); si += 8;\r
-       uint32_t cid     = PackBits(si, 5, bitstream); si += 5;\r
-       uint32_t icr     = PackBits(si, 3, bitstream); si += 3;\r
-       uint32_t year    = PackBits(si, 4, bitstream); si += 4;\r
-       uint32_t quarter = PackBits(si, 2, bitstream); si += 2;\r
-       uint32_t lotid    = PackBits(si, 12, bitstream); si += 12;\r
-       uint32_t wafer   = PackBits(si, 5, bitstream); si += 5;\r
-       uint32_t dw      = PackBits(si, 15, bitstream); \r
+       RepaintGraphWindow();\r
+       uint8_t repeat = 0;\r
+       if (config.offset > 5) \r
+               repeat = 32;\r
+       uint8_t si = config.offset+repeat;\r
+       uint32_t bl0     = PackBits(si, 32, DemodBuffer);\r
+       uint32_t bl1     = PackBits(si+32, 32, DemodBuffer);\r
        \r
        \r
+       uint32_t acl     = PackBits(si, 8,  DemodBuffer); si += 8;\r
+       uint32_t mfc     = PackBits(si, 8,  DemodBuffer); si += 8;\r
+       uint32_t cid     = PackBits(si, 5,  DemodBuffer); si += 5;\r
+       uint32_t icr     = PackBits(si, 3,  DemodBuffer); si += 3;\r
+       uint32_t year    = PackBits(si, 4,  DemodBuffer); si += 4;\r
+       uint32_t quarter = PackBits(si, 2,  DemodBuffer); si += 2;\r
+       uint32_t lotid   = PackBits(si, 14, DemodBuffer); si += 14;\r
+       uint32_t wafer   = PackBits(si, 5,  DemodBuffer); si += 5;\r
+       uint32_t dw      = PackBits(si, 15, DemodBuffer); \r
+       \r
+       time_t t = time(NULL);\r
+       struct tm tm = *localtime(&t);\r
+       if ( year > tm.tm_year-110)\r
+               year += 2000;\r
+       else\r
+               year += 2010;\r
+\r
+       if ( acl != 0xE0 ) {\r
+               PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. ");\r
+               return 1;\r
+       }\r
+\r
        PrintAndLog("");\r
        PrintAndLog("-- T55xx Trace Information ----------------------------------");\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1)  : 0x%02X (%d)", acl, acl);\r
        PrintAndLog("");\r
        PrintAndLog("-- T55xx Trace Information ----------------------------------");\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1)  : 0x%02X (%d)", acl, acl);\r
-       PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6)    : 0x%02X (%d)", mfc, mfc);\r
-       PrintAndLog(" CID                                     : 0x%02X (%d)", cid, cid);\r
+       PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6)    : 0x%02X (%d) - %s", mfc, mfc, getTagInfo(mfc));\r
+       PrintAndLog(" CID                                     : 0x%02X (%d) - %s", cid, cid, GetModelStrFromCID(cid));\r
        PrintAndLog(" ICR IC Revision                         : %d",icr );\r
        PrintAndLog(" Manufactured");\r
        PrintAndLog(" ICR IC Revision                         : %d",icr );\r
        PrintAndLog(" Manufactured");\r
-       PrintAndLog("     Year/Quarter : %d/%d",2000+year, quarter );\r
+       PrintAndLog("     Year/Quarter : %d/%d",year, quarter);\r
        PrintAndLog("     Lot ID       : %d", lotid );\r
        PrintAndLog("     Wafer number : %d", wafer);\r
        PrintAndLog("     Die Number   : %d", dw);\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" Raw Data - Page 1");\r
        PrintAndLog("     Lot ID       : %d", lotid );\r
        PrintAndLog("     Wafer number : %d", wafer);\r
        PrintAndLog("     Die Number   : %d", dw);\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" Raw Data - Page 1");\r
-       PrintAndLog("     Block 0  : 0x%08X  %s", bl0, sprint_bin(bitstream+5,32) );\r
-       PrintAndLog("     Block 0  : 0x%08X  %s", bl1, sprint_bin(bitstream+37,32) );\r
+       PrintAndLog("     Block 0  : 0x%08X  %s", bl0, sprint_bin(DemodBuffer+config.offset+repeat,32) );\r
+       PrintAndLog("     Block 1  : 0x%08X  %s", bl1, sprint_bin(DemodBuffer+config.offset+repeat+32,32) );\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog("-------------------------------------------------------------");\r
+\r
        /*\r
        TRACE - BLOCK O\r
                Bits    Definition                                                              HEX\r
        /*\r
        TRACE - BLOCK O\r
                Bits    Definition                                                              HEX\r
@@ -232,7 +770,7 @@ int CmdReadTrace(const char *Cmd)
   return 0;\r
 }\r
 \r
   return 0;\r
 }\r
 \r
-int CmdInfo(const char *Cmd){\r
+int CmdT55xxInfo(const char *Cmd){\r
        /*\r
                Page 0 Block 0 Configuration data.\r
                Normal mode\r
        /*\r
                Page 0 Block 0 Configuration data.\r
                Normal mode\r
@@ -240,84 +778,75 @@ int CmdInfo(const char *Cmd){
        */\r
        char cmdp = param_getchar(Cmd, 0);\r
 \r
        */\r
        char cmdp = param_getchar(Cmd, 0);\r
 \r
-       if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') {\r
-               PrintAndLog("Usage:  lf t55xx info  [use data from Graphbuffer]");\r
-               PrintAndLog("     [use data from Graphbuffer], if not set, try reading data from tag.");\r
-               PrintAndLog("");\r
-               PrintAndLog("    sample: lf t55xx info");\r
-               PrintAndLog("    sample: lf t55xx info 1");\r
-               return 0;\r
-       }\r
+       if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')\r
+               return usage_t55xx_info();\r
+       \r
+       if (strlen(Cmd)==0)\r
+               AquireData( CONFIGURATION_BLOCK );\r
 \r
 \r
-       if ( strlen(Cmd)==0){\r
-               CmdReadBlk("0");\r
-       }       \r
+       if (!DecodeT55xxBlock()) return 1;\r
 \r
 \r
-       uint8_t bits[LF_BITSSTREAM_LEN] = {0x00};\r
-       uint8_t * bitstream = bits;\r
-       \r
-       manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream, LF_BITSSTREAM_LEN);\r
-       \r
-       uint8_t si = 5;\r
-       uint32_t bl0      = PackBits(si, 32, bitstream);\r
+       if ( DemodBufferLen < 32) return 1;\r
+\r
+       uint8_t si = config.offset;\r
+       uint32_t bl0      = PackBits(si, 32, DemodBuffer);\r
        \r
        \r
-       uint32_t safer    = PackBits(si, 4, bitstream); si += 4;        \r
-       uint32_t resv     = PackBits(si, 7, bitstream); si += 7;\r
-       uint32_t dbr      = PackBits(si, 3, bitstream); si += 3;\r
-       uint32_t extend   = PackBits(si, 1, bitstream); si += 1;\r
-       uint32_t datamodulation   = PackBits(si, 5, bitstream); si += 5;\r
-       uint32_t pskcf    = PackBits(si, 2, bitstream); si += 2;\r
-       uint32_t aor      = PackBits(si, 1, bitstream); si += 1;        \r
-       uint32_t otp      = PackBits(si, 1, bitstream); si += 1;        \r
-       uint32_t maxblk   = PackBits(si, 3, bitstream); si += 3;\r
-       uint32_t pwd      = PackBits(si, 1, bitstream); si += 1;        \r
-       uint32_t sst      = PackBits(si, 1, bitstream); si += 1;        \r
-       uint32_t fw       = PackBits(si, 1, bitstream); si += 1;\r
-       uint32_t inv      = PackBits(si, 1, bitstream); si += 1;        \r
-       uint32_t por      = PackBits(si, 1, bitstream); si += 1;\r
+       uint32_t safer    = PackBits(si, 4, DemodBuffer); si += 4;      \r
+       uint32_t resv     = PackBits(si, 7, DemodBuffer); si += 7;\r
+       uint32_t dbr      = PackBits(si, 3, DemodBuffer); si += 3;\r
+       uint32_t extend   = PackBits(si, 1, DemodBuffer); si += 1;\r
+       uint32_t datamod  = PackBits(si, 5, DemodBuffer); si += 5;\r
+       uint32_t pskcf    = PackBits(si, 2, DemodBuffer); si += 2;\r
+       uint32_t aor      = PackBits(si, 1, DemodBuffer); si += 1;      \r
+       uint32_t otp      = PackBits(si, 1, DemodBuffer); si += 1;      \r
+       uint32_t maxblk   = PackBits(si, 3, DemodBuffer); si += 3;\r
+       uint32_t pwd      = PackBits(si, 1, DemodBuffer); si += 1;      \r
+       uint32_t sst      = PackBits(si, 1, DemodBuffer); si += 1;      \r
+       uint32_t fw       = PackBits(si, 1, DemodBuffer); si += 1;\r
+       uint32_t inv      = PackBits(si, 1, DemodBuffer); si += 1;      \r
+       uint32_t por      = PackBits(si, 1, DemodBuffer); si += 1;\r
                \r
        PrintAndLog("");\r
                \r
        PrintAndLog("");\r
-       PrintAndLog("-- T55xx Configuration --------------------------------------");\r
+       PrintAndLog("-- T55xx Configuration & Tag Information --------------------");\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" Safer key                 : %s", GetSaferStr(safer));\r
        PrintAndLog(" reserved                  : %d", resv);\r
        PrintAndLog(" Data bit rate             : %s", GetBitRateStr(dbr));\r
        PrintAndLog(" eXtended mode             : %s", (extend) ? "Yes - Warning":"No");\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" Safer key                 : %s", GetSaferStr(safer));\r
        PrintAndLog(" reserved                  : %d", resv);\r
        PrintAndLog(" Data bit rate             : %s", GetBitRateStr(dbr));\r
        PrintAndLog(" eXtended mode             : %s", (extend) ? "Yes - Warning":"No");\r
-       PrintAndLog(" Modulation                : %s", GetModulationStr(datamodulation) );\r
-       PrintAndLog(" PSK clock freq            : %d", pskcf);\r
+       PrintAndLog(" Modulation                : %s", GetModulationStr(datamod));\r
+       PrintAndLog(" PSK clock frequency       : %d", pskcf);\r
        PrintAndLog(" AOR - Answer on Request   : %s", (aor) ? "Yes":"No");\r
        PrintAndLog(" OTP - One Time Pad        : %s", (otp) ? "Yes - Warning":"No" );\r
        PrintAndLog(" Max block                 : %d", maxblk);\r
        PrintAndLog(" Password mode             : %s", (pwd) ? "Yes":"No");\r
        PrintAndLog(" Sequence Start Terminator : %s", (sst) ? "Yes":"No");\r
        PrintAndLog(" AOR - Answer on Request   : %s", (aor) ? "Yes":"No");\r
        PrintAndLog(" OTP - One Time Pad        : %s", (otp) ? "Yes - Warning":"No" );\r
        PrintAndLog(" Max block                 : %d", maxblk);\r
        PrintAndLog(" Password mode             : %s", (pwd) ? "Yes":"No");\r
        PrintAndLog(" Sequence Start Terminator : %s", (sst) ? "Yes":"No");\r
-       PrintAndLog(" Fast Write                : %s", (fw) ? "Yes":"No");\r
+       PrintAndLog(" Fast Write                : %s", (fw)  ? "Yes":"No");\r
        PrintAndLog(" Inverse data              : %s", (inv) ? "Yes":"No");\r
        PrintAndLog(" POR-Delay                 : %s", (por) ? "Yes":"No");\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" Raw Data - Page 0");\r
        PrintAndLog(" Inverse data              : %s", (inv) ? "Yes":"No");\r
        PrintAndLog(" POR-Delay                 : %s", (por) ? "Yes":"No");\r
        PrintAndLog("-------------------------------------------------------------");\r
        PrintAndLog(" Raw Data - Page 0");\r
-       PrintAndLog("     Block 0  : 0x%08X  %s", bl0, sprint_bin(bitstream+5,32) );\r
+       PrintAndLog("     Block 0  : 0x%08X  %s", bl0, sprint_bin(DemodBuffer+config.offset,32) );\r
        PrintAndLog("-------------------------------------------------------------");\r
        \r
        return 0;\r
 }\r
 \r
        PrintAndLog("-------------------------------------------------------------");\r
        \r
        return 0;\r
 }\r
 \r
-int CmdDump(const char *Cmd){\r
+int CmdT55xxDump(const char *Cmd){\r
 \r
 \r
-       char cmdp = param_getchar(Cmd, 0);\r
-       char s[20];\r
+       char s[20] = {0x00};\r
        uint8_t pwd[4] = {0x00};\r
        uint8_t pwd[4] = {0x00};\r
-       bool hasPwd = ( strlen(Cmd) > 0);\r
-       \r
+\r
+       char cmdp = param_getchar(Cmd, 0);\r
        if ( cmdp == 'h' || cmdp == 'H') {\r
        if ( cmdp == 'h' || cmdp == 'H') {\r
-               PrintAndLog("Usage:  lf t55xx dump <password>");\r
-               PrintAndLog("        sample: lf t55xx dump FFFFFFFF");\r
+               usage_t55xx_dump();\r
                return 0;\r
        }\r
                return 0;\r
        }\r
-       \r
+\r
+       bool hasPwd = ( strlen(Cmd) > 0);       \r
        if ( hasPwd ){\r
                if (param_gethex(Cmd, 0, pwd, 8)) {\r
                        PrintAndLog("password must include 8 HEX symbols");\r
        if ( hasPwd ){\r
                if (param_gethex(Cmd, 0, pwd, 8)) {\r
                        PrintAndLog("password must include 8 HEX symbols");\r
-                       return 0;\r
+                       return 1;\r
                }\r
        }\r
        \r
                }\r
        }\r
        \r
@@ -325,79 +854,79 @@ int CmdDump(const char *Cmd){
                memset(s,0,sizeof(s));\r
                if ( hasPwd ) {\r
                        sprintf(s,"%d %02x%02x%02x%02x", i, pwd[0],pwd[1],pwd[2],pwd[3]);\r
                memset(s,0,sizeof(s));\r
                if ( hasPwd ) {\r
                        sprintf(s,"%d %02x%02x%02x%02x", i, pwd[0],pwd[1],pwd[2],pwd[3]);\r
-                       CmdReadBlkPWD(s);\r
                } else {\r
                        sprintf(s,"%d", i);\r
                } else {\r
                        sprintf(s,"%d", i);\r
-                       CmdReadBlk(s);\r
                }\r
                }\r
+               CmdT55xxReadBlock(s);\r
        }\r
        return 0;\r
 }\r
 \r
        }\r
        return 0;\r
 }\r
 \r
-int CmdIceFsk(const char *Cmd){\r
+int AquireData( uint8_t block ){\r
 \r
 \r
-       if (!HasGraphData()) return 0;\r
+       UsbCommand c;\r
+       \r
+       if ( block == CONFIGURATION_BLOCK ) \r
+               c.cmd = CMD_T55XX_READ_BLOCK;\r
+       else if (block == TRACE_BLOCK )\r
+               c.cmd = CMD_T55XX_READ_TRACE;\r
+               \r
+       c.arg[0] = 0x00;\r
+       c.arg[1] = 0x00;\r
+       c.arg[2] = 0x00;\r
+       c.d.asBytes[0] = 0x0; \r
 \r
 \r
-       iceFsk3(GraphBuffer, LF_TRACE_BUFF_SIZE);\r
-       RepaintGraphWindow();\r
-       return 0;\r
-}\r
-int CmdIceManchester(const char *Cmd){\r
-       ManchesterDemod( -1);\r
-       return 0;\r
-}\r
-int ManchesterDemod(int blockNum){\r
+       //Password mode\r
+       // if ( res == 2 ) {\r
+               // c.arg[2] = password;\r
+               // c.d.asBytes[0] = 0x1; \r
+       // }\r
 \r
 \r
-       if (!HasGraphData()) return 0;\r
-               \r
-       uint8_t sizebyte = 32;\r
-       // the value 5 was selected during empirical studies of the decoded data. Some signal noise to skip.\r
-       uint8_t offset = 5;\r
-       uint32_t blockData;\r
-       uint8_t  bits[LF_BITSSTREAM_LEN] = {0x00};\r
-       uint8_t * bitstream = bits;\r
-       \r
-       manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream, LF_BITSSTREAM_LEN);       \r
-    blockData = PackBits(offset, sizebyte, bitstream);\r
+       clearCommandBuffer();\r
+       SendCommand(&c);\r
+       if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {\r
+               PrintAndLog("command execution time out");\r
+               return 1;\r
+       }\r
 \r
 \r
-       if ( blockNum < 0)\r
-               PrintAndLog(" Decoded     : 0x%08X  %s", blockData, sprint_bin(bitstream+offset,sizebyte) );\r
-               else\r
-               PrintAndLog(" Block %d    : 0x%08X  %s", blockNum, blockData, sprint_bin(bitstream+offset,sizebyte) );\r
-       \r
+       uint8_t got[12000];\r
+       GetFromBigBuf(got,sizeof(got),0);\r
+       WaitForResponse(CMD_ACK,NULL);\r
+       setGraphBuf(got, 12000);\r
        return 0;\r
        return 0;\r
-} \r
+}\r
 \r
 char * GetBitRateStr(uint32_t id){\r
 \r
 char * GetBitRateStr(uint32_t id){\r
-       static char buf[40];\r
+       static char buf[25];\r
+\r
        char *retStr = buf;\r
                switch (id){\r
                case 0: \r
        char *retStr = buf;\r
                switch (id){\r
                case 0: \r
-                       sprintf(retStr,"%d - RF/8",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/8",id);\r
                        break;\r
                case 1:\r
                        break;\r
                case 1:\r
-                       sprintf(retStr,"%d - RF/16",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/16",id);\r
                        break;\r
                case 2:         \r
                        break;\r
                case 2:         \r
-                       sprintf(retStr,"%d - RF/32",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/32",id);\r
                        break;\r
                case 3:\r
                        break;\r
                case 3:\r
-                       sprintf(retStr,"%d - RF/40",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/40",id);\r
                        break;\r
                case 4:\r
                        break;\r
                case 4:\r
-                       sprintf(retStr,"%d - RF/50",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/50",id);\r
                        break;\r
                case 5:\r
                        break;\r
                case 5:\r
-                       sprintf(retStr,"%d - RF/64",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/64",id);\r
                        break;\r
                case 6:\r
                        break;\r
                case 6:\r
-                       sprintf(retStr,"%d - RF/100",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/100",id);\r
                        break;\r
                case 7:\r
                        break;\r
                case 7:\r
-                       sprintf(retStr,"%d - RF/128",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - RF/128",id);\r
                        break;\r
                default:\r
                        break;\r
                default:\r
-                       sprintf(retStr,"%d - (Unknown)",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - (Unknown)",id);\r
                        break;\r
                }\r
 \r
                        break;\r
                }\r
 \r
@@ -405,88 +934,159 @@ char * GetBitRateStr(uint32_t id){
 }\r
 \r
 char * GetSaferStr(uint32_t id){\r
 }\r
 \r
 char * GetSaferStr(uint32_t id){\r
-       static char buf[40];\r
+       static char buf[40];\r
        char *retStr = buf;\r
        \r
        char *retStr = buf;\r
        \r
-       sprintf(retStr,"%d",id);\r
+       snprintf(retStr,sizeof(buf),"%d",id);\r
        if (id == 6) {\r
        if (id == 6) {\r
-               sprintf(retStr,"%d - pasdwd",id);\r
+               snprintf(retStr,sizeof(buf),"%d - passwd",id);\r
        }\r
        if (id == 9 ){\r
        }\r
        if (id == 9 ){\r
-               sprintf(retStr,"%d - testmode ",id);\r
+               snprintf(retStr,sizeof(buf),"%d - testmode",id);\r
        }\r
        \r
        return buf;\r
 }\r
        }\r
        \r
        return buf;\r
 }\r
+\r
 char * GetModulationStr( uint32_t id){\r
 char * GetModulationStr( uint32_t id){\r
-       static char buf[40];\r
+       static char buf[60];\r
        char *retStr = buf;\r
        \r
        switch (id){\r
                case 0: \r
        char *retStr = buf;\r
        \r
        switch (id){\r
                case 0: \r
-                       sprintf(retStr,"%d - DIRECT (ASK/NRZ)",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - DIRECT (ASK/NRZ)",id);\r
                        break;\r
                case 1:\r
                        break;\r
                case 1:\r
-                       sprintf(retStr,"%d - PSK 1 phase change when input changes",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - PSK 1 phase change when input changes",id);\r
                        break;\r
                case 2:         \r
                        break;\r
                case 2:         \r
-                       sprintf(retStr,"%d - PSK 2 phase change on bitclk if input high",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - PSK 2 phase change on bitclk if input high",id);\r
                        break;\r
                case 3:\r
                        break;\r
                case 3:\r
-                       sprintf(retStr,"%d - PSK 3 phase change on rising edge of input",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - PSK 3 phase change on rising edge of input",id);\r
                        break;\r
                case 4:\r
                        break;\r
                case 4:\r
-                       sprintf(retStr,"%d - FSK 1 RF/8  RF/5",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - FSK 1 RF/8  RF/5",id);\r
                        break;\r
                case 5:\r
                        break;\r
                case 5:\r
-                       sprintf(retStr,"%d - FSK 2 RF/8  RF/10",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - FSK 2 RF/8  RF/10",id);\r
                        break;\r
                case 6:\r
                        break;\r
                case 6:\r
-                       sprintf(retStr,"%d - FSK 1a RF/5  RF/8",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - FSK 1a RF/5  RF/8",id);\r
                        break;\r
                case 7:\r
                        break;\r
                case 7:\r
-                       sprintf(retStr,"%d - FSK 2a RF/10  RF/8",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - FSK 2a RF/10  RF/8",id);\r
                        break;\r
                case 8:\r
                        break;\r
                case 8:\r
-                       sprintf(retStr,"%d - Manschester",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - Manchester",id);\r
                        break;\r
                case 16:\r
                        break;\r
                case 16:\r
-                       sprintf(retStr,"%d - Biphase",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - Biphase",id);\r
+                       break;\r
+               case 0x18:\r
+                       snprintf(retStr,sizeof(buf),"%d - Biphase a - AKA Conditional Dephase Encoding(CDP)",id);\r
                        break;\r
                case 17:\r
                        break;\r
                case 17:\r
-                       sprintf(retStr,"%d - Reserved",id);\r
+                       snprintf(retStr,sizeof(buf),"%d - Reserved",id);\r
+                       break;\r
+               default:\r
+                       snprintf(retStr,sizeof(buf),"0x%02X (Unknown)",id);\r
+                       break;\r
+               }\r
+       return buf;\r
+}\r
+\r
+char * GetModelStrFromCID(uint32_t cid){\r
+               \r
+       static char buf[10];\r
+       char *retStr = buf;\r
+       \r
+       if (cid == 1) snprintf(retStr, sizeof(buf),"ATA5577M1");\r
+       if (cid == 2) snprintf(retStr, sizeof(buf),"ATA5577M2");        \r
+       return buf;\r
+}\r
+\r
+char * GetSelectedModulationStr( uint8_t id){\r
+\r
+       static char buf[20];\r
+       char *retStr = buf;\r
+\r
+       switch (id){\r
+               case DEMOD_FSK:\r
+                       snprintf(retStr,sizeof(buf),"FSK");\r
+                       break;\r
+               case DEMOD_FSK1:\r
+                       snprintf(retStr,sizeof(buf),"FSK1");\r
+                       break;\r
+               case DEMOD_FSK1a:\r
+                       snprintf(retStr,sizeof(buf),"FSK1a");\r
+                       break;\r
+               case DEMOD_FSK2:\r
+                       snprintf(retStr,sizeof(buf),"FSK2");\r
+                       break;\r
+               case DEMOD_FSK2a:\r
+                       snprintf(retStr,sizeof(buf),"FSK2a");\r
+                       break;\r
+               case DEMOD_ASK:         \r
+                       snprintf(retStr,sizeof(buf),"ASK");\r
+                       break;\r
+               case DEMOD_NRZ:\r
+                       snprintf(retStr,sizeof(buf),"DIRECT/NRZ");\r
+                       break;\r
+               case DEMOD_PSK1:\r
+                       snprintf(retStr,sizeof(buf),"PSK1");\r
+                       break;\r
+               case DEMOD_PSK2:\r
+                       snprintf(retStr,sizeof(buf),"PSK2");\r
+                       break;\r
+               case DEMOD_PSK3:\r
+                       snprintf(retStr,sizeof(buf),"PSK3");\r
+                       break;\r
+               case DEMOD_BI:\r
+                       snprintf(retStr,sizeof(buf),"BIPHASE");\r
+                       break;\r
+               case DEMOD_BIa:\r
+                       snprintf(retStr,sizeof(buf),"BIPHASEa - (CDP)");\r
                        break;\r
                default:\r
                        break;\r
                default:\r
-                       sprintf(retStr,"0x%02X (Unknown)",id);\r
+                       snprintf(retStr,sizeof(buf),"(Unknown)");\r
                        break;\r
                }\r
        return buf;\r
 }\r
 \r
                        break;\r
                }\r
        return buf;\r
 }\r
 \r
+void t55x7_create_config_block( int tagtype ){\r
+       //switch?\r
+       \r
+       \r
+}\r
 \r
 \r
+/*\r
 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){\r
        \r
        int i = start;\r
        int j = len-1;\r
 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){\r
        \r
        int i = start;\r
        int j = len-1;\r
-       uint32_t tmp = 0;\r
-       for (; j >= 0; --j, ++i){\r
+\r
+       if (len > 32) return 0;\r
+\r
+       uint32_t tmp = 0;\r
+       for (; j >= 0; --j, ++i)\r
                tmp     |= bits[i] << j;\r
                tmp     |= bits[i] << j;\r
-       }\r
+\r
        return tmp;\r
 }\r
        return tmp;\r
 }\r
-\r
+*/\r
 static command_t CommandTable[] =\r
 {\r
 static command_t CommandTable[] =\r
 {\r
-  {"help",   CmdHelp,        1, "This help"},\r
-  {"rd",     CmdReadBlk,     0, "<block> -- Read T55xx block data (page 0)"},\r
-  {"rdpwd",  CmdReadBlkPWD,  0, "<block> <password> -- Read T55xx block data with password mode"},\r
-  {"wr",     CmdWriteBlk,    0, "<data> <block> -- Write T55xx block data (page 0)"},\r
-  {"wrpwd",  CmdWriteBlkPWD, 0, "<data> <block> <password> -- Write T55xx block data with password"},\r
-  {"trace",  CmdReadTrace,   0, "[1] Read T55xx traceability data (page 1/ blk 0-1)"},\r
-  {"info",   CmdInfo,        0, "[1] Read T55xx configuration data (page 0/ blk 0)"},\r
-  {"dump",   CmdDump,        0, "[password] Dump T55xx card block 0-7. optional with password"},\r
-  {"fsk",    CmdIceFsk,      0, "FSK demod"},\r
-  {"man",    CmdIceManchester,      0, "Manchester demod (with SST)"},\r
+  {"help",   CmdHelp,           1, "This help"},\r
+  {"config", CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"},\r
+  {"detect", CmdT55xxDetect,    0, "[1] Try detecting the tag modulation from reading the configuration block."},\r
+  {"read",   CmdT55xxReadBlock, 0, "<block> [password] -- Read T55xx block data (page 0) [optional password]"},\r
+  {"write",  CmdT55xxWriteBlock,0, "<block> <data> [password] -- Write T55xx block data (page 0) [optional password]"},\r
+  {"trace",  CmdT55xxReadTrace, 0, "[1] Show T55xx traceability data (page 1/ blk 0-1)"},\r
+  {"info",   CmdT55xxInfo,      0, "[1] Show T55xx configuration data (page 0/ blk 0)"},\r
+  {"dump",   CmdT55xxDump,      0, "[password] Dump T55xx card block 0-7. [optional password]"},\r
+  {"special", special,          0, "Show block changes with 64 different offsets"},\r
   {NULL, NULL, 0, NULL}\r
 };\r
 \r
   {NULL, NULL, 0, NULL}\r
 };\r
 \r
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