X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e4b65f5bc16eef150efb5327d9aa9e2e48e999be..84bdbc19174eaf54db337ef0470e35cf45dc8e9d:/armsrc/lfops.c

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 4e1b7e34..28927c33 100644
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -400,6 +400,17 @@ void SimulateTagLowFrequency(int period, int gap, int ledcontrol)
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT);
 	//FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT | FPGA_LF_EDGE_DETECT_READER_FIELD);
 	//FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT | FPGA_LF_EDGE_DETECT_TOGGLE_MODE );
+
+	// set frequency,  get values from 'lf config' command
+	sample_config *sc = getSamplingConfig();
+
+	if ( (sc->divisor == 1) || (sc->divisor < 0) || (sc->divisor > 255) )
+		FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz
+	else if (sc->divisor == 0)
+		FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+	else
+		FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc->divisor);
+	
 	SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
 	
 	AT91C_BASE_PIOA->PIO_PER = GPIO_SSC_DOUT | GPIO_SSC_CLK;
@@ -854,14 +865,13 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 				if (ledcontrol)	LED_A_OFF();
 				*high = hi;
 				*low = lo;
-				goto OUT;
+				break;
 			}
 			// reset
 		}
 		hi2 = hi = lo = idx = 0;
 		WDT_HIT();
 	}
-OUT:	
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	DbpString("Stopped");
 	if (ledcontrol) LED_A_OFF();
@@ -960,12 +970,12 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 					break;		
 			}
 			if (findone)
-				goto OUT;
+				break;
 
 		idx = 0;
 		WDT_HIT();
 	}
-OUT:	
+
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);	
 	DbpString("Stopped");
 	if (ledcontrol) LED_A_OFF();
@@ -1021,13 +1031,14 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 				if (ledcontrol) LED_A_OFF();
 				*high=lo>>32;
 				*low=lo & 0xFFFFFFFF;
-				return;
+				break;
 			}
 		}
 		WDT_HIT();
 		hi = lo = size = idx = 0;
 		clk = invert = errCnt = 0;
 	}
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);		
 	DbpString("Stopped");
 	if (ledcontrol) LED_A_OFF();
 }
@@ -1106,7 +1117,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 				if (ledcontrol)	LED_A_OFF();
 				*high=code;
 				*low=code2;
-				goto OUT;
+				break;
 			}
 			code=code2=0;
 			version=facilitycode=0;
@@ -1115,7 +1126,6 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 
 		WDT_HIT();
 	}
-OUT:	
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);		
 	DbpString("Stopped");
 	if (ledcontrol) LED_A_OFF();
@@ -1273,7 +1283,7 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
 
 	// Set up FPGA, 125kHz to power up the tag
 	LFSetupFPGAForADC(95, true);
-	SpinDelay(3);
+	//SpinDelay(3);
 	
 	// Trigger T55x7 Direct Access Mode with start gap
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
@@ -1300,7 +1310,7 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
 	TurnReadLFOn(READ_GAP);
 	
 	// Acquisition
-	doT55x7Acquisition(12000);
+	doT55x7Acquisition(7679);
 	
 	// Turn the field off
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
@@ -1359,7 +1369,7 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) {
 		data[4] = manchesterEncode2Bytes(hi & 0xFFFF);
 		data[5] = manchesterEncode2Bytes(lo >> 16);
 		data[6] = manchesterEncode2Bytes(lo & 0xFFFF);
-	}	else {
+	} else {
 		// Ensure no more than 44 bits supplied
 		if (hi > 0xFFF) {
 			DbpString("Tags can only have 44 bits.");
@@ -1379,13 +1389,8 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) {
 	// data[0] = (((50-2)/2)<<T5555_BITRATE_SHIFT) | T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | last_block << T5555_MAXBLOCK_SHIFT;
 
 	LED_D_ON();
-	// Program the data blocks for supplied ID
-	// and the block 0 for HID format
 	WriteT55xx(data, 0, last_block+1);
-
 	LED_D_OFF();
-
-	DbpString("DONE!");
 }
 
 void CopyIOtoT55x7(uint32_t hi, uint32_t lo) {
@@ -1399,7 +1404,6 @@ void CopyIOtoT55x7(uint32_t hi, uint32_t lo) {
 	// and the block 0 config
 	WriteT55xx(data, 0, 3);
 	LED_D_OFF();
-	DbpString("DONE!");
 }
 
 // Clone Indala 64-bit tag by UID to T55x7
@@ -1413,7 +1417,6 @@ void CopyIndala64toT55x7(uint32_t hi, uint32_t lo) {
 	WriteT55xx(data, 0, 3);
 	//Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=2;Inverse data)
 	//	T5567WriteBlock(0x603E1042,0);
-	DbpString("DONE!");
 }
 // Clone Indala 224-bit tag by UID to T55x7
 void CopyIndala224toT55x7(uint32_t uid1, uint32_t uid2, uint32_t uid3, uint32_t uid4, uint32_t uid5, uint32_t uid6, uint32_t uid7) {
@@ -1427,7 +1430,6 @@ void CopyIndala224toT55x7(uint32_t uid1, uint32_t uid2, uint32_t uid3, uint32_t
 	WriteT55xx(data, 0, 8);
 	//Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=7;Inverse data)
 	//	T5567WriteBlock(0x603E10E2,0);
-	DbpString("DONE!");
 }
 // clone viking tag to T55xx
 void CopyVikingtoT55xx(uint32_t block1, uint32_t block2, uint8_t Q5) {
@@ -1735,3 +1737,49 @@ void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
 	LED_D_OFF();
 }
+
+void Cotag() {
+
+#define WAIT2200 	{ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); WaitUS(2200); }
+
+	LED_A_ON();
+	
+	//clear buffer now so it does not interfere with timing later
+	BigBuf_Clear_keep_EM();
+
+	// Set up FPGA, 132kHz to power up the tag
+	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+	FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 89);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
+
+	// Connect the A/D to the peak-detected low-frequency path.
+	SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
+	
+	// 50ms for the resonant antenna to settle.
+	SpinDelay(50);
+	
+	// Now set up the SSC to get the ADC samples that are now streaming at us.
+	FpgaSetupSsc();
+	// start a 1.5ticks is 1us
+	StartTicks();
+	
+	//send start pulse
+	TurnReadLFOn(800);
+	WAIT2200
+	TurnReadLFOn(3600);
+	WAIT2200
+	TurnReadLFOn(800);
+	WAIT2200
+	TurnReadLFOn(3600);	
+	
+	// Turn field on to read the response
+	TurnReadLFOn(READ_GAP);
+	
+	// Acquisition
+	doT55x7Acquisition(20000);
+	
+	// Turn the field off
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
+	cmd_send(CMD_ACK,0,0,0,0,0);    
+	LED_A_OFF();
+}