Update README.md

[proxmark3-svn] / client / cmdlfvisa2000.c

diff --git a/client/cmdlfvisa2000.c b/client/cmdlfvisa2000.c
index 6166903545785bd6f6104f47d78dc97f2cf7d5dc..04589ba51f872306e75664b3a85cf427505c3460 100644 (file)
--- a/client/cmdlfvisa2000.c
+++ b/client/cmdlfvisa2000.c
@@ -6,6 +6,7 @@
 //-----------------------------------------------------------------------------
 // Low frequency visa 2000 tag commands
 // by iceman
+// ASK/Manchester, RF/64, STT, 96 bits (complete)
 //-----------------------------------------------------------------------------
 
 #include "cmdlfvisa2000.h"
@@ -28,26 +29,26 @@ static int CmdHelp(const char *Cmd);
 
 int usage_lf_visa2k_clone(void){
        PrintAndLog("clone a Visa2000 tag to a T55x7 tag.");
-       PrintAndLog("Usage: lf visa2k clone [h] <card ID> <Q5>");
+       PrintAndLog("Usage: lf visa2000 clone [h] <card ID> <Q5>");
        PrintAndLog("Options:");
        PrintAndLog("      h          : This help");
-       PrintAndLog("      <card ID>  : Visa2k card ID");
+       PrintAndLog("      <card ID>  : Visa2000 card ID");
        PrintAndLog("      <Q5>       : specify write to Q5 (t5555 instead of t55x7)");
        PrintAndLog("");
-       PrintAndLog("Sample: lf visa2k clone 112233");
+       PrintAndLog("Sample: lf visa2000 clone 112233");
        return 0;
 }
 
 int usage_lf_visa2k_sim(void) {
-       PrintAndLog("Enables simulation of visa2k card with specified card number.");
+       PrintAndLog("Enables simulation of visa2000 card with specified card number.");
        PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
        PrintAndLog("");
-       PrintAndLog("Usage:  lf visa2k sim [h] <card ID>");
+       PrintAndLog("Usage:  lf visa2000 sim [h] <card ID>");
        PrintAndLog("Options:");
        PrintAndLog("      h          : This help");
-       PrintAndLog("      <card ID>  : Visa2k card ID");
+       PrintAndLog("      <card ID>  : Visa2000 card ID");
        PrintAndLog("");
-       PrintAndLog("Sample: lf visa2k sim 112233");
+       PrintAndLog("Sample: lf visa2000 sim 112233");
        return 0;
 }
 
@@ -83,12 +84,12 @@ static uint8_t visa_parity( uint32_t id) {
 /**
 *
 * 56495332 00096ebd 00000077 —> tag id 618173
-* aaaaaaaa iiiiiiii -----..c
+* aaaaaaaa iiiiiiii -----ppc
 *
 * a = fixed value  ascii 'VIS2'
 * i = card id
+* p = even parity bit for each nibble in card id.
 * c = checksum  (xor of card id)
-* . = unknown 
 * 
 **/
 //see ASKDemod for what args are accepted
@@ -99,7 +100,7 @@ int CmdVisa2kDemod(const char *Cmd) {
        //ASK / Manchester
        bool st = true;
        if (!ASKDemod_ext("64 0 0", false, false, 1, &st)) {
-               if (g_debugMode) PrintAndLog("DEBUG: Error - Visa2k: ASK/Manchester Demod failed");
+               if (g_debugMode) PrintAndLog("DEBUG: Error - Visa2000: ASK/Manchester Demod failed");
                return 0;
        }
        size_t size = DemodBufferLen;
@@ -107,18 +108,18 @@ int CmdVisa2kDemod(const char *Cmd) {
        if (ans < 0){
                if (g_debugMode){
                        if (ans == -1)
-                               PrintAndLog("DEBUG: Error - Visa2k: too few bits found");
+                               PrintAndLog("DEBUG: Error - Visa2000: too few bits found");
                        else if (ans == -2)
-                               PrintAndLog("DEBUG: Error - Visa2k: preamble not found");
+                               PrintAndLog("DEBUG: Error - Visa2000: preamble not found");
                        else if (ans == -3)
-                               PrintAndLog("DEBUG: Error - Visa2k: Size not correct: %d", size);
+                               PrintAndLog("DEBUG: Error - Visa2000: Size not correct: %d", size);
                        else
-                               PrintAndLog("DEBUG: Error - Visa2k: ans: %d", ans);
+                               PrintAndLog("DEBUG: Error - Visa2000: ans: %d", ans);
                }
                return 0;
        }
        setDemodBuf(DemodBuffer, 96, ans);
-       //setGrid_Clock(64);
+       setClockGrid(g_DemodClock, g_DemodStartIdx + (ans*g_DemodClock));
 
        //got a good demod
        uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
@@ -146,9 +147,8 @@ int CmdVisa2kDemod(const char *Cmd) {
 }
 
 int CmdVisa2kRead(const char *Cmd) {
-       CmdLFRead("s");
        //64*96*2=12288 samples just in case we just missed the first preamble we can still catch 2 of them
-       getSamples("12500",true); 
+       lf_read(true, 12500);
        return CmdVisa2kDemod(Cmd);
 }