From d91a31f93587ed0b8804293a1653dbffed111703 Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Wed, 7 Jan 2015 21:29:38 +0100
Subject: [PATCH] CHG: minor code clean up.

ADD: tunesamples in cmddata.c  pullrequest #33,  was removed by Marshmellows other commits. I returned it.
---
 armsrc/lfops.c   | 30 ++++++++++++---------------
 client/cmddata.c | 53 ++++++++++++++++++++++++++++++++++++++----------
 2 files changed, 55 insertions(+), 28 deletions(-)

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index edddb1c6..fe2a7121 100644
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -647,15 +647,12 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
         if (ledcontrol) LED_A_ON();
 
         DoAcquisition125k_internal(-1,true);
-        size  = sizeof(BigBuf);
-        if (size < 2000) continue;
         // FSK demodulator
-
-        int bitLen = HIDdemodFSK(dest,size,&hi2,&hi,&lo);
+		size = HIDdemodFSK(dest, sizeof(BigBuf), &hi2, &hi, &lo);
 
         WDT_HIT();
 
-        if (bitLen>0 && lo>0){
+		if (size>0 && lo>0){
             // final loop, go over previously decoded manchester data and decode into usable tag ID
             // 111000 bit pattern represent start of frame, 01 pattern represents a 1 and 10 represents a 0
             if (hi2 != 0){ //extra large HID tags
@@ -726,8 +723,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 {
     uint8_t *dest = (uint8_t *)BigBuf;
 
-    size_t size=0; //, found=0;
-    uint32_t bitLen=0;
+	size_t size=0;
     int clk=0, invert=0, errCnt=0;
     uint64_t lo=0;
     // Configure to go in 125Khz listen mode
@@ -740,21 +736,22 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 
         DoAcquisition125k_internal(-1,true);
         size  = sizeof(BigBuf);
-        if (size < 2000) continue;
-        // FSK demodulator
-        //int askmandemod(uint8_t *BinStream,uint32_t *BitLen,int *clk, int *invert);
-        bitLen=size;
         //Dbprintf("DEBUG: Buffer got");
-        errCnt = askmandemod(dest,&bitLen,&clk,&invert); //HIDdemodFSK(dest,size,&hi2,&hi,&lo);
+		//askdemod and manchester decode
+		errCnt = askmandemod(dest, &size, &clk, &invert);
         //Dbprintf("DEBUG: ASK Got");
         WDT_HIT();
 
         if (errCnt>=0){
-            lo = Em410xDecode(dest,bitLen);
+			lo = Em410xDecode(dest,size);
             //Dbprintf("DEBUG: EM GOT");
-            //printEM410x(lo);
             if (lo>0){
-                Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",(uint32_t)(lo>>32),(uint32_t)lo,(uint32_t)(lo&0xFFFF),(uint32_t)((lo>>16LL) & 0xFF),(uint32_t)(lo & 0xFFFFFF));
+				Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",
+				    (uint32_t)(lo>>32),
+				    (uint32_t)lo,
+				    (uint32_t)(lo&0xFFFF),
+				    (uint32_t)((lo>>16LL) & 0xFF),
+				    (uint32_t)(lo & 0xFFFFFF));
             }
             if (findone){
                 if (ledcontrol)	LED_A_OFF();
@@ -769,7 +766,6 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
         invert=0;
         errCnt=0;
         size=0;
-        //SpinDelay(50);
     }
     DbpString("Stopped");
     if (ledcontrol) LED_A_OFF();
@@ -1519,6 +1515,7 @@ int IsBlock1PCF7931(uint8_t *Block) {
 
     return 0;
 }
+
 #define ALLOC 16
 
 void ReadPCF7931() {
@@ -1778,7 +1775,6 @@ void SendForward(uint8_t fwd_bit_count) {
     }
 }
 
-
 void EM4xLogin(uint32_t Password) {
 
     uint8_t fwd_bit_count;
diff --git a/client/cmddata.c b/client/cmddata.c
index 38917a33..3ac8db25 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -891,21 +891,52 @@ int CmdSamples(const char *Cmd)
 
 int CmdTuneSamples(const char *Cmd)
 {
-  int cnt = 0;
-  int n = 255;
-  uint8_t got[255];
-
-  PrintAndLog("Reading %d samples\n", n);
-  GetFromBigBuf(got,n,7256); // armsrc/apps.h: #define FREE_BUFFER_OFFSET 7256
-  WaitForResponse(CMD_ACK,NULL);
-  for (int j = 0; j < n; j++) {
-    GraphBuffer[cnt++] = ((int)got[j]) - 128;
+	int timeout = 0;
+	printf("\nMeasuring antenna characteristics, please wait...");
+
+	UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+	SendCommand(&c);
+
+	UsbCommand resp;
+	while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
+		timeout++;
+		printf(".");
+		if (timeout > 7) {
+			PrintAndLog("\nNo response from Proxmark. Aborting...");
+			return 1;
+		}
+	}
+
+	int peakv, peakf;
+	int vLf125, vLf134, vHf;
+	vLf125 = resp.arg[0] & 0xffff;
+	vLf134 = resp.arg[0] >> 16;
+	vHf = resp.arg[1] & 0xffff;;
+	peakf = resp.arg[2] & 0xffff;
+	peakv = resp.arg[2] >> 16;
+	PrintAndLog("");
+	PrintAndLog("# LF antenna: %5.2f V @   125.00 kHz", vLf125/1000.0);
+	PrintAndLog("# LF antenna: %5.2f V @   134.00 kHz", vLf134/1000.0);
+	PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
+	PrintAndLog("# HF antenna: %5.2f V @    13.56 MHz", vHf/1000.0);
+	if (peakv<2000)
+		PrintAndLog("# Your LF antenna is unusable.");
+	else if (peakv<10000)
+		PrintAndLog("# Your LF antenna is marginal.");
+	if (vHf<2000)
+		PrintAndLog("# Your HF antenna is unusable.");
+	else if (vHf<5000)
+		PrintAndLog("# Your HF antenna is marginal.");
+
+	for (int i = 0; i < 256; i++) {
+		GraphBuffer[i] = resp.d.asBytes[i] - 128;
   }
   
   PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
   PrintAndLog("\n");
-  GraphTraceLen = n;
-  RepaintGraphWindow();
+	GraphTraceLen = 256;
+	ShowGraphWindow();
+
   return 0;
 }
 
-- 
2.39.2