X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4271e82d56403879635cabe17a0e959c49fc1a83..b4a9d8419fde40cd39b8068ddfec34118b250c50:/armsrc/appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 72d8789e..d7f05d16 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -1,18 +1,31 @@
 //-----------------------------------------------------------------------------
-// The main application code. This is the first thing called after start.c
-// executes.
 // Jonathan Westhues, Mar 2006
 // Edits by Gerhard de Koning Gans, Sep 2007 (##)
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// The main application code. This is the first thing called after start.c
+// executes.
 //-----------------------------------------------------------------------------
 
-#include <proxmark3.h>
-#include <stdlib.h>
+#include "proxmark3.h"
 #include "apps.h"
+#include "util.h"
+#include "printf.h"
+#include "string.h"
+
+#include <stdarg.h>
+
+#include "legicrf.h"
+
 #ifdef WITH_LCD
-#include "fonts.h"
-#include "LCD.h"
+# include "fonts.h"
+# include "LCD.h"
 #endif
 
+#define abs(x) ( ((x)<0) ? -(x) : (x) )
 
 //=============================================================================
 // A buffer where we can queue things up to be sent through the FPGA, for
@@ -20,14 +33,15 @@
 // is the order in which they go out on the wire.
 //=============================================================================
 
-BYTE ToSend[256];
+uint8_t ToSend[512];
 int ToSendMax;
 static int ToSendBit;
+struct common_area common_area __attribute__((section(".commonarea")));
 
 void BufferClear(void)
 {
 	memset(BigBuf,0,sizeof(BigBuf));
-	DbpString("Buffer cleared");
+	Dbprintf("Buffer cleared (%i bytes)",sizeof(BigBuf));
 }
 
 void ToSendReset(void)
@@ -68,14 +82,18 @@ void DbpString(char *str)
 
 	UsbCommand c;
 	c.cmd = CMD_DEBUG_PRINT_STRING;
-	c.ext1 = strlen(str);
-	memcpy(c.d.asBytes, str, c.ext1);
+	c.arg[0] = strlen(str);
+	if(c.arg[0] > sizeof(c.d.asBytes)) {
+		c.arg[0] = sizeof(c.d.asBytes);
+	}
+	memcpy(c.d.asBytes, str, c.arg[0]);
 
-	UsbSendPacket((BYTE *)&c, sizeof(c));
+	UsbSendPacket((uint8_t *)&c, sizeof(c));
 	// TODO fix USB so stupid things like this aren't req'd
 	SpinDelay(50);
 }
 
+#if 0
 void DbpIntegers(int x1, int x2, int x3)
 {
 	/* this holds up stuff unless we're connected to usb */
@@ -84,14 +102,50 @@ void DbpIntegers(int x1, int x2, int x3)
 
 	UsbCommand c;
 	c.cmd = CMD_DEBUG_PRINT_INTEGERS;
-	c.ext1 = x1;
-	c.ext2 = x2;
-	c.ext3 = x3;
+	c.arg[0] = x1;
+	c.arg[1] = x2;
+	c.arg[2] = x3;
 
-	UsbSendPacket((BYTE *)&c, sizeof(c));
+	UsbSendPacket((uint8_t *)&c, sizeof(c));
 	// XXX
 	SpinDelay(50);
 }
+#endif
+
+void Dbprintf(const char *fmt, ...) {
+// should probably limit size here; oh well, let's just use a big buffer
+	char output_string[128];
+	va_list ap;
+
+	va_start(ap, fmt);
+	kvsprintf(fmt, output_string, 10, ap);
+	va_end(ap);
+
+	DbpString(output_string);
+}
+
+// prints HEX & ASCII
+void Dbhexdump(int len, uint8_t *d) {
+	int l=0,i;
+	char ascii[9];
+
+	while (len>0) {
+		if (len>8) l=8;
+		else l=len;
+		
+		memcpy(ascii,d,l);
+		ascii[l]=0;	
+		
+		// filter safe ascii
+		for (i=0;i<l;i++) 
+			if (ascii[i]<32 || ascii[i]>126) ascii[i]='.';
+
+		Dbprintf("%-8s %*D",ascii,l,d," ");
+
+		len-=8;
+		d+=8;		
+	}
+}
 
 //-----------------------------------------------------------------------------
 // Read an ADC channel and block till it completes, then return the result
@@ -100,22 +154,24 @@ void DbpIntegers(int x1, int x2, int x3)
 //-----------------------------------------------------------------------------
 static int ReadAdc(int ch)
 {
-	DWORD d;
+	uint32_t d;
 
-	ADC_CONTROL = ADC_CONTROL_RESET;
-	ADC_MODE = ADC_MODE_PRESCALE(32) | ADC_MODE_STARTUP_TIME(16) |
+	AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
+	AT91C_BASE_ADC->ADC_MR =
+		ADC_MODE_PRESCALE(32) |
+		ADC_MODE_STARTUP_TIME(16) |
 		ADC_MODE_SAMPLE_HOLD_TIME(8);
-	ADC_CHANNEL_ENABLE = ADC_CHANNEL(ch);
+	AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
 
-	ADC_CONTROL = ADC_CONTROL_START;
-	while(!(ADC_STATUS & ADC_END_OF_CONVERSION(ch)))
+	AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
+	while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
 		;
-	d = ADC_CHANNEL_DATA(ch);
+	d = AT91C_BASE_ADC->ADC_CDR[ch];
 
 	return d;
 }
 
-static int AvgAdc(int ch)
+int AvgAdc(int ch) // was static - merlok
 {
 	int i;
 	int a = 0;
@@ -129,7 +185,7 @@ static int AvgAdc(int ch)
 
 void MeasureAntennaTuning(void)
 {
-	BYTE *dest = (BYTE *)BigBuf;
+	uint8_t *dest = (uint8_t *)BigBuf;
 	int i, ptr = 0, adcval = 0, peak = 0, peakv = 0, peakf = 0;;
 	int vLf125 = 0, vLf134 = 0, vHf = 0;	// in mV
 
@@ -173,17 +229,38 @@ void MeasureAntennaTuning(void)
 	vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
 
 	c.cmd = CMD_MEASURED_ANTENNA_TUNING;
-	c.ext1 = (vLf125 << 0) | (vLf134 << 16);
-	c.ext2 = vHf;
-	c.ext3 = peakf | (peakv << 16);
-	UsbSendPacket((BYTE *)&c, sizeof(c));
+	c.arg[0] = (vLf125 << 0) | (vLf134 << 16);
+	c.arg[1] = vHf;
+	c.arg[2] = peakf | (peakv << 16);
+	UsbSendPacket((uint8_t *)&c, sizeof(c));
+}
+
+void MeasureAntennaTuningHf(void)
+{
+	int vHf = 0;	// in mV
+
+	DbpString("Measuring HF antenna, press button to exit");
+
+	for (;;) {
+		// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
+		FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+		SpinDelay(20);
+		// Vref = 3300mV, and an 10:1 voltage divider on the input
+		// can measure voltages up to 33000 mV
+		vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
+
+		Dbprintf("%d mV",vHf);
+		if (BUTTON_PRESS()) break;
+	}
+	DbpString("cancelled");
 }
 
+
 void SimulateTagHfListen(void)
 {
-	BYTE *dest = (BYTE *)BigBuf;
+	uint8_t *dest = (uint8_t *)BigBuf;
 	int n = sizeof(BigBuf);
-	BYTE v = 0;
+	uint8_t v = 0;
 	int i;
 	int p = 0;
 
@@ -198,11 +275,11 @@ void SimulateTagHfListen(void)
 
 	i = 0;
 	for(;;) {
-		if(SSC_STATUS & (SSC_STATUS_TX_READY)) {
-			SSC_TRANSMIT_HOLDING = 0xff;
+		if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
+			AT91C_BASE_SSC->SSC_THR = 0xff;
 		}
-		if(SSC_STATUS & (SSC_STATUS_RX_READY)) {
-			BYTE r = (BYTE)SSC_RECEIVE_HOLDING;
+		if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
+			uint8_t r = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
 
 			v <<= 1;
 			if(r & 1) {
@@ -227,43 +304,41 @@ void SimulateTagHfListen(void)
 
 void ReadMem(int addr)
 {
-	const DWORD *data = ((DWORD *)addr);
-	int i;
+	const uint8_t *data = ((uint8_t *)addr);
 
-	DbpString("Reading memory at address");
-	DbpIntegers(0, 0, addr);
-	for (i = 0; i < 8; i+= 2)
-		DbpIntegers(0, data[i], data[i+1]);
+	Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
+		addr, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
 }
 
 /* osimage version information is linked in */
 extern struct version_information version_information;
 /* bootrom version information is pointed to from _bootphase1_version_pointer */
-extern char _bootphase1_version_pointer, _flash_start, _flash_end;
+extern char *_bootphase1_version_pointer, _flash_start, _flash_end;
 void SendVersion(void)
 {
 	char temp[48]; /* Limited data payload in USB packets */
 	DbpString("Prox/RFID mark3 RFID instrument");
-	
-	/* Try to find the bootrom version information. Expect to find a pointer at 
+
+	/* Try to find the bootrom version information. Expect to find a pointer at
 	 * symbol _bootphase1_version_pointer, perform slight sanity checks on the
 	 * pointer, then use it.
 	 */
-	void *bootrom_version = *(void**)&_bootphase1_version_pointer;
-	if( bootrom_version < (void*)&_flash_start || bootrom_version >= (void*)&_flash_end ) {
+	char *bootrom_version = *(char**)&_bootphase1_version_pointer;
+	if( bootrom_version < &_flash_start || bootrom_version >= &_flash_end ) {
 		DbpString("bootrom version information appears invalid");
 	} else {
 		FormatVersionInformation(temp, sizeof(temp), "bootrom: ", bootrom_version);
 		DbpString(temp);
 	}
-	
+
 	FormatVersionInformation(temp, sizeof(temp), "os: ", &version_information);
 	DbpString(temp);
-	
+
 	FpgaGatherVersion(temp, sizeof(temp));
 	DbpString(temp);
 }
 
+#ifdef WITH_LF
 // samy's sniff and repeat routine
 void SamyRun()
 {
@@ -318,8 +393,7 @@ void SamyRun()
 			SpinDelay(500);
 
 			CmdHIDdemodFSK(1, &high[selected], &low[selected], 0);
-			DbpString("Recorded");
-			DbpIntegers(selected, high[selected], low[selected]);
+			Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]);
 
 			LEDsoff();
 			LED(selected + 1, 0);
@@ -349,7 +423,7 @@ void SamyRun()
 				// wait for button to be released
 				while(BUTTON_PRESS())
 					WDT_HIT();
-				DbpIntegers(selected, high[selected], low[selected]);
+				Dbprintf("%x %x %x", selected, high[selected], low[selected]);
 				CmdHIDsimTAG(high[selected], low[selected], 0);
 				DbpString("Done playing");
 				if (BUTTON_HELD(1000) > 0)
@@ -374,7 +448,7 @@ void SamyRun()
 		}
 	}
 }
-
+#endif
 
 /*
 OBJECTIVE
@@ -427,17 +501,15 @@ void ListenReaderField(int limit)
 	lf_av=lf_max=ReadAdc(ADC_CHAN_LF);
 
 	if(limit != HF_ONLY) {
-		DbpString("LF 125/134 Baseline:");
-		DbpIntegers(lf_av,0,0);
-		lf_baseline= lf_av;
+		Dbprintf("LF 125/134 Baseline: %d", lf_av);
+		lf_baseline = lf_av;
 	}
 
 	hf_av=hf_max=ReadAdc(ADC_CHAN_HF);
 
 	if (limit != LF_ONLY) {
-		DbpString("HF 13.56 Baseline:");
-		DbpIntegers(hf_av,0,0);
-		hf_baseline= hf_av;
+		Dbprintf("HF 13.56 Baseline: %d", hf_av);
+		hf_baseline = hf_av;
 	}
 
 	for(;;) {
@@ -463,14 +535,13 @@ void ListenReaderField(int limit)
 				if (abs(lf_av - lf_baseline) > 10) LED_D_ON();
 				else                               LED_D_OFF();
 			}
-			
+
 			++lf_count;
 			lf_av_new= ReadAdc(ADC_CHAN_LF);
 			// see if there's a significant change
 			if(abs(lf_av - lf_av_new) > 10) {
-				DbpString("LF 125/134 Field Change:");
-				DbpIntegers(lf_av,lf_av_new,lf_count);
-				lf_av= lf_av_new;
+				Dbprintf("LF 125/134 Field Change: %x %x %x", lf_av, lf_av_new, lf_count);
+				lf_av = lf_av_new;
 				if (lf_av > lf_max)
 					lf_max = lf_av;
 				lf_count= 0;
@@ -482,20 +553,19 @@ void ListenReaderField(int limit)
 				if (abs(hf_av - hf_baseline) > 10) LED_B_ON();
 				else                               LED_B_OFF();
 			}
-			
+
 			++hf_count;
 			hf_av_new= ReadAdc(ADC_CHAN_HF);
 			// see if there's a significant change
 			if(abs(hf_av - hf_av_new) > 10) {
-				DbpString("HF 13.56 Field Change:");
-				DbpIntegers(hf_av,hf_av_new,hf_count);
-				hf_av= hf_av_new;
+				Dbprintf("HF 13.56 Field Change: %x %x %x", hf_av, hf_av_new, hf_count);
+				hf_av = hf_av_new;
 				if (hf_av > hf_max)
 					hf_max = hf_av;
 				hf_count= 0;
 			}
 		}
-		
+
 		if(mode == 2) {
 			if (limit == LF_ONLY) {
 				display_val = lf_av;
@@ -525,81 +595,185 @@ void ListenReaderField(int limit)
 	}
 }
 
-void UsbPacketReceived(BYTE *packet, int len)
+void UsbPacketReceived(uint8_t *packet, int len)
 {
 	UsbCommand *c = (UsbCommand *)packet;
+	UsbCommand ack;
+	ack.cmd = CMD_ACK;
 
 	switch(c->cmd) {
+#ifdef WITH_LF
 		case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K:
-			AcquireRawAdcSamples125k(c->ext1);
+			AcquireRawAdcSamples125k(c->arg[0]);
+			UsbSendPacket((uint8_t*)&ack, sizeof(ack));
 			break;
-
 		case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
-			ModThenAcquireRawAdcSamples125k(c->ext1,c->ext2,c->ext3,c->d.asBytes);
+			ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
+			break;
+		case CMD_HID_DEMOD_FSK:
+			CmdHIDdemodFSK(0, 0, 0, 1);				// Demodulate HID tag
+			break;
+		case CMD_HID_SIM_TAG:
+			CmdHIDsimTAG(c->arg[0], c->arg[1], 1);					// Simulate HID tag by ID
+			break;
+		case CMD_HID_CLONE_TAG:
+			CopyHIDtoT5567(c->arg[0], c->arg[1]);					// Clone HID tag by ID to T55x7
+			break;
+		case CMD_EM410X_WRITE_TAG:
+			WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
+			break;
+		case CMD_READ_TI_TYPE:
+			ReadTItag();
+			break;
+		case CMD_WRITE_TI_TYPE:
+			WriteTItag(c->arg[0],c->arg[1],c->arg[2]);
+			break;
+		case CMD_SIMULATE_TAG_125K:
+			LED_A_ON();
+			SimulateTagLowFrequency(c->arg[0], c->arg[1], 1);
+			LED_A_OFF();
+			break;
+		case CMD_LF_SIMULATE_BIDIR:
+			SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
 			break;
+#endif
 
+#ifdef WITH_ISO15693
 		case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
 			AcquireRawAdcSamplesIso15693();
 			break;
-
-		case CMD_BUFF_CLEAR:
-			BufferClear();
+		case CMD_RECORD_RAW_ADC_SAMPLES_ISO_15693:
+			RecordRawAdcSamplesIso15693();
+			break;
+			
+		case CMD_ISO_15693_COMMAND:
+			DirectTag15693Command(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
+			break;
+					
+		case CMD_ISO_15693_FIND_AFI:
+			BruteforceIso15693Afi(c->arg[0]);
+			break;	
+			
+		case CMD_ISO_15693_DEBUG:
+			SetDebugIso15693(c->arg[0]);
 			break;
 
 		case CMD_READER_ISO_15693:
-			ReaderIso15693(c->ext1);
+			ReaderIso15693(c->arg[0]);
 			break;
-
 		case CMD_SIMTAG_ISO_15693:
-			SimTagIso15693(c->ext1);
+			SimTagIso15693(c->arg[0]);
 			break;
+#endif
 
-		case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443:
-			AcquireRawAdcSamplesIso14443(c->ext1);
+#ifdef WITH_LEGICRF
+		case CMD_SIMULATE_TAG_LEGIC_RF:
+			LegicRfSimulate(c->arg[0], c->arg[1], c->arg[2]);
 			break;
 
-		case CMD_READ_SRI512_TAG:
-			ReadSRI512Iso14443(c->ext1);
+		case CMD_WRITER_LEGIC_RF:
+			LegicRfWriter(c->arg[1], c->arg[0]);
 			break;
 
-		case CMD_READER_ISO_14443a:
-			ReaderIso14443a(c->ext1);
+		case CMD_READER_LEGIC_RF:
+			LegicRfReader(c->arg[0], c->arg[1]);
 			break;
+#endif
 
+#ifdef WITH_ISO14443b
+		case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443:
+			AcquireRawAdcSamplesIso14443(c->arg[0]);
+			break;
+		case CMD_READ_SRI512_TAG:
+			ReadSRI512Iso14443(c->arg[0]);
+			break;
+		case CMD_READ_SRIX4K_TAG:
+			ReadSRIX4KIso14443(c->arg[0]);
+			break;
 		case CMD_SNOOP_ISO_14443:
 			SnoopIso14443();
 			break;
+		case CMD_SIMULATE_TAG_ISO_14443:
+			SimulateIso14443Tag();
+			break;
+#endif
 
+#ifdef WITH_ISO14443a
 		case CMD_SNOOP_ISO_14443a:
 			SnoopIso14443a();
 			break;
+		case CMD_READER_ISO_14443a:
+			ReaderIso14443a(c, &ack);
+			break;
+		case CMD_SIMULATE_TAG_ISO_14443a:
+			SimulateIso14443aTag(c->arg[0], c->arg[1]);  // ## Simulate iso14443a tag - pass tag type & UID
+			break;
+			
+		case CMD_READER_MIFARE:
+			ReaderMifare(c->arg[0]);
+			break;
+		case CMD_MIFARE_READBL:
+			MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_READSC:
+			MifareReadSector(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_WRITEBL:
+			MifareWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_NESTED:
+			MifareNested(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_CHKKEYS:
+			MifareChkKeys(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_SIMULATE_MIFARE_CARD:
+			Mifare1ksim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		
+		// emulator
+		case CMD_MIFARE_SET_DBGMODE:
+			MifareSetDbgLvl(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_EML_MEMCLR:
+			MifareEMemClr(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_EML_MEMSET:
+			MifareEMemSet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_EML_MEMGET:
+			MifareEMemGet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_EML_CARDLOAD:
+			MifareECardLoad(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+#endif
 
-		case CMD_SIMULATE_TAG_HF_LISTEN:
-			SimulateTagHfListen();
+#ifdef WITH_ICLASS
+		// Makes use of ISO14443a FPGA Firmware
+		case CMD_SNOOP_ICLASS:
+			SnoopIClass();
 			break;
+#endif
 
-		case CMD_SIMULATE_TAG_ISO_14443:
-			SimulateIso14443Tag();
+		case CMD_SIMULATE_TAG_HF_LISTEN:
+			SimulateTagHfListen();
 			break;
 
-		case CMD_SIMULATE_TAG_ISO_14443a:
-			SimulateIso14443aTag(c->ext1, c->ext2);  // ## Simulate iso14443a tag - pass tag type & UID
+		case CMD_BUFF_CLEAR:
+			BufferClear();
 			break;
 
 		case CMD_MEASURE_ANTENNA_TUNING:
 			MeasureAntennaTuning();
 			break;
 
-		case CMD_LISTEN_READER_FIELD:
-			ListenReaderField(c->ext1);
+		case CMD_MEASURE_ANTENNA_TUNING_HF:
+			MeasureAntennaTuningHf();
 			break;
 
-		case CMD_HID_DEMOD_FSK:
-			CmdHIDdemodFSK(0, 0, 0, 1);				// Demodulate HID tag
-			break;
-
-		case CMD_HID_SIM_TAG:
-			CmdHIDsimTAG(c->ext1, c->ext2, 1);					// Simulate HID tag by ID
+		case CMD_LISTEN_READER_FIELD:
+			ListenReaderField(c->arg[0]);
 			break;
 
 		case CMD_FPGA_MAJOR_MODE_OFF:		// ## FPGA Control
@@ -608,14 +782,6 @@ void UsbPacketReceived(BYTE *packet, int len)
 			LED_D_OFF(); // LED D indicates field ON or OFF
 			break;
 
-		case CMD_READ_TI_TYPE:
-			ReadTItag();
-			break;
-
-		case CMD_WRITE_TI_TYPE:
-			WriteTItag(c->ext1,c->ext2,c->ext3);
-			break;
-
 		case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: {
 			UsbCommand n;
 			if(c->cmd == CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K) {
@@ -623,39 +789,53 @@ void UsbPacketReceived(BYTE *packet, int len)
 			} else {
 				n.cmd = CMD_DOWNLOADED_RAW_BITS_TI_TYPE;
 			}
-			n.ext1 = c->ext1;
-			memcpy(n.d.asDwords, BigBuf+c->ext1, 12*sizeof(DWORD));
-			UsbSendPacket((BYTE *)&n, sizeof(n));
+			n.arg[0] = c->arg[0];
+			memcpy(n.d.asDwords, BigBuf+c->arg[0], 12*sizeof(uint32_t));
+			LED_B_ON();
+			UsbSendPacket((uint8_t *)&n, sizeof(n));
+			LED_B_OFF();
 			break;
 		}
+
 		case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
-			BYTE *b = (BYTE *)BigBuf;
-			memcpy(b+c->ext1, c->d.asBytes, 48);
+			uint8_t *b = (uint8_t *)BigBuf;
+			memcpy(b+c->arg[0], c->d.asBytes, 48);
+			//Dbprintf("copied 48 bytes to %i",b+c->arg[0]);
+			UsbSendPacket((uint8_t*)&ack, sizeof(ack));
 			break;
 		}
-		case CMD_SIMULATE_TAG_125K:
-			LED_A_ON();
-			SimulateTagLowFrequency(c->ext1, 1);
-			LED_A_OFF();
-			break;
+
 		case CMD_READ_MEM:
-			ReadMem(c->ext1);
+			ReadMem(c->arg[0]);
 			break;
+
 		case CMD_SET_LF_DIVISOR:
-			FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->ext1);
+			FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
 			break;
+
+		case CMD_SET_ADC_MUX:
+			switch(c->arg[0]) {
+				case 0: SetAdcMuxFor(GPIO_MUXSEL_LOPKD); break;
+				case 1: SetAdcMuxFor(GPIO_MUXSEL_LORAW); break;
+				case 2: SetAdcMuxFor(GPIO_MUXSEL_HIPKD); break;
+				case 3: SetAdcMuxFor(GPIO_MUXSEL_HIRAW); break;
+			}
+			break;
+
 		case CMD_VERSION:
 			SendVersion();
 			break;
-		case CMD_LF_SIMULATE_BIDIR:
-			SimulateTagLowFrequencyBidir(c->ext1, c->ext2);
-			break;
+
+#ifdef WITH_LF
+
+#endif
+
 #ifdef WITH_LCD
 		case CMD_LCD_RESET:
 			LCDReset();
 			break;
 		case CMD_LCD:
-			LCDSend(c->ext1);
+			LCDSend(c->arg[0]);
 			break;
 #endif
 		case CMD_SETUP_WRITE:
@@ -664,23 +844,47 @@ void UsbPacketReceived(BYTE *packet, int len)
 			USB_D_PLUS_PULLUP_OFF();
 			SpinDelay(1000);
 			SpinDelay(1000);
-			RSTC_CONTROL = RST_CONTROL_KEY | RST_CONTROL_PROCESSOR_RESET;
+			AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
 			for(;;) {
 				// We're going to reset, and the bootrom will take control.
 			}
 			break;
 
+		case CMD_START_FLASH:
+			if(common_area.flags.bootrom_present) {
+				common_area.command = COMMON_AREA_COMMAND_ENTER_FLASH_MODE;
+			}
+			USB_D_PLUS_PULLUP_OFF();
+			AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
+			for(;;);
+			break;
+
+		case CMD_DEVICE_INFO: {
+			UsbCommand c;
+			c.cmd = CMD_DEVICE_INFO;
+			c.arg[0] = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
+			if(common_area.flags.bootrom_present) c.arg[0] |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;
+			UsbSendPacket((uint8_t*)&c, sizeof(c));
+		}
+			break;
 		default:
-			DbpString("unknown command");
+			Dbprintf("%s: 0x%04x","unknown command:",c->cmd);
 			break;
 	}
 }
 
-void AppMain(void)
+void  __attribute__((noreturn)) AppMain(void)
 {
-	memset(BigBuf,0,sizeof(BigBuf));
 	SpinDelay(100);
 
+	if(common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
+		/* Initialize common area */
+		memset(&common_area, 0, sizeof(common_area));
+		common_area.magic = COMMON_AREA_MAGIC;
+		common_area.version = 1;
+	}
+	common_area.flags.osimage_present = 1;
+
 	LED_D_OFF();
 	LED_C_OFF();
 	LED_B_OFF();
@@ -689,35 +893,37 @@ void AppMain(void)
 	UsbStart();
 
 	// The FPGA gets its clock from us from PCK0 output, so set that up.
-	PIO_PERIPHERAL_B_SEL = (1 << GPIO_PCK0);
-	PIO_DISABLE = (1 << GPIO_PCK0);
-	PMC_SYS_CLK_ENABLE = PMC_SYS_CLK_PROGRAMMABLE_CLK_0;
+	AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;
+	AT91C_BASE_PIOA->PIO_PDR = GPIO_PCK0;
+	AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_PCK0;
 	// PCK0 is PLL clock / 4 = 96Mhz / 4 = 24Mhz
-	PMC_PROGRAMMABLE_CLK_0 = PMC_CLK_SELECTION_PLL_CLOCK |
-		PMC_CLK_PRESCALE_DIV_4;
-	PIO_OUTPUT_ENABLE = (1 << GPIO_PCK0);
+	AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK |
+		AT91C_PMC_PRES_CLK_4;
+	AT91C_BASE_PIOA->PIO_OER = GPIO_PCK0;
 
 	// Reset SPI
-	SPI_CONTROL = SPI_CONTROL_RESET;
+	AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
 	// Reset SSC
-	SSC_CONTROL = SSC_CONTROL_RESET;
+	AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
 
 	// Load the FPGA image, which we have stored in our flash.
 	FpgaDownloadAndGo();
 
+	StartTickCount();
+	
 #ifdef WITH_LCD
 
 	LCDInit();
 
 	// test text on different colored backgrounds
-	LCDString(" The quick brown fox  ",	&FONT6x8,1,1+8*0,WHITE  ,BLACK );
-	LCDString("  jumped over the     ",	&FONT6x8,1,1+8*1,BLACK  ,WHITE );
-	LCDString("     lazy dog.        ",	&FONT6x8,1,1+8*2,YELLOW ,RED   );
-	LCDString(" AaBbCcDdEeFfGgHhIiJj ",	&FONT6x8,1,1+8*3,RED    ,GREEN );
-	LCDString(" KkLlMmNnOoPpQqRrSsTt ",	&FONT6x8,1,1+8*4,MAGENTA,BLUE  );
-	LCDString("UuVvWwXxYyZz0123456789",	&FONT6x8,1,1+8*5,BLUE   ,YELLOW);
-	LCDString("`-=[]_;',./~!@#$%^&*()",	&FONT6x8,1,1+8*6,BLACK  ,CYAN  );
-	LCDString("     _+{}|:\\\"<>?     ",&FONT6x8,1,1+8*7,BLUE  ,MAGENTA);
+	LCDString(" The quick brown fox  ",	(char *)&FONT6x8,1,1+8*0,WHITE  ,BLACK );
+	LCDString("  jumped over the     ",	(char *)&FONT6x8,1,1+8*1,BLACK  ,WHITE );
+	LCDString("     lazy dog.        ",	(char *)&FONT6x8,1,1+8*2,YELLOW ,RED   );
+	LCDString(" AaBbCcDdEeFfGgHhIiJj ",	(char *)&FONT6x8,1,1+8*3,RED    ,GREEN );
+	LCDString(" KkLlMmNnOoPpQqRrSsTt ",	(char *)&FONT6x8,1,1+8*4,MAGENTA,BLUE  );
+	LCDString("UuVvWwXxYyZz0123456789",	(char *)&FONT6x8,1,1+8*5,BLUE   ,YELLOW);
+	LCDString("`-=[]_;',./~!@#$%^&*()",	(char *)&FONT6x8,1,1+8*6,BLACK  ,CYAN  );
+	LCDString("     _+{}|:\\\"<>?     ",(char *)&FONT6x8,1,1+8*7,BLUE  ,MAGENTA);
 
 	// color bands
 	LCDFill(0, 1+8* 8, 132, 8, BLACK);
@@ -735,7 +941,9 @@ void AppMain(void)
 		UsbPoll(FALSE);
 		WDT_HIT();
 
+#ifdef WITH_LF
 		if (BUTTON_HELD(1000) > 0)
 			SamyRun();
+#endif
 	}
 }