New LF edge detection algorithm + lowpass filter

[proxmark3-svn] / client / cmdlf.c

diff --git a/client/cmdlf.c b/client/cmdlf.c
index 271dcb783641ebc8acbd6053ca2d6f3f22b19477..22aa1e059b39b9030c5eca97c3fd4f772c113307 100644 (file)
--- a/client/cmdlf.c
+++ b/client/cmdlf.c
@@ -27,6 +27,7 @@
 #include "cmdlfhitag.h"
 #include "cmdlft55xx.h"
 #include "cmdlfpcf7931.h"
+#include "cmdlfio.h"
 
 static int CmdHelp(const char *Cmd);
 
@@ -128,7 +129,7 @@ int CmdFlexdemod(const char *Cmd)
   RepaintGraphWindow();
   return 0;
 }
-
+  
 int CmdIndalaDemod(const char *Cmd)
 {
   // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID
@@ -362,8 +363,8 @@ int CmdLFRead(const char *Cmd)
     c.arg[0] = 1;
   } else if (*Cmd == '\0') {
     c.arg[0] = 0;
-  } else {
-    PrintAndLog("use 'read' or 'read h'");
+  } else if (sscanf(Cmd, "%"lli, &c.arg[0]) != 1) {
+    PrintAndLog("use 'read' or 'read h', or 'read <divisor>'");
     return 0;
   }
   SendCommand(&c);
@@ -449,6 +450,28 @@ int CmdLFSimManchester(const char *Cmd)
   return 0;
 }
 
+int CmdLFSnoop(const char *Cmd)
+{
+  UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES};
+  // 'h' means higher-low-frequency, 134 kHz
+  c.arg[0] = 0;
+  c.arg[1] = -1;
+  if (*Cmd == 0) {
+    // empty
+  } else if (*Cmd == 'l') {
+    sscanf(Cmd, "l %"lli, &c.arg[1]);
+  } else if(*Cmd == 'h') {
+    c.arg[0] = 1;
+    sscanf(Cmd, "h %"lli, &c.arg[1]);
+  } else if (sscanf(Cmd, "%"lli" %"lli, &c.arg[0], &c.arg[1]) < 1) {
+    PrintAndLog("use 'snoop' or 'snoop {l,h} [trigger threshold]', or 'snoop <divisor> [trigger threshold]'");
+    return 0;
+  }
+  SendCommand(&c);
+  WaitForResponse(CMD_ACK,NULL);
+  return 0;
+}
+
 int CmdVchDemod(const char *Cmd)
 {
   // Is this the entire sync pattern, or does this also include some
@@ -532,12 +555,14 @@ static command_t CommandTable[] =
   {"em4x",        CmdLFEM4X,          1, "{ EM4X RFIDs... }"},
   {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},
   {"hid",         CmdLFHID,           1, "{ HID RFIDs... }"},
+  {"io",         CmdLFIO,            1, "{ ioProx tags... }"},
   {"indalademod", CmdIndalaDemod,     1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},
   {"indalaclone", CmdIndalaClone,     1, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},
-  {"read",        CmdLFRead,          0, "['h'] -- Read 125/134 kHz LF ID-only tag (option 'h' for 134)"},
+  {"read",        CmdLFRead,          0, "['h' or <divisor>] -- Read 125/134 kHz LF ID-only tag (option 'h' for 134, alternatively: f=12MHz/(divisor+1))"},
   {"sim",         CmdLFSim,           0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},
   {"simbidir",    CmdLFSimBidir,      0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},
   {"simman",      CmdLFSimManchester, 0, "<Clock> <Bitstream> [GAP] Simulate arbitrary Manchester LF tag"},
+  {"snoop",       CmdLFSnoop,         0, "['l'|'h'|<divisor>] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"},
   {"ti",          CmdLFTI,            1, "{ TI RFIDs... }"},
   {"hitag",       CmdLFHitag,         1, "{ Hitag tags and transponders... }"},
   {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},