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1 //-----------------------------------------------------------------------------
2 // Jonathan Westhues, Mar 2006
3 // Edits by Gerhard de Koning Gans, Sep 2007 (##)
4 //
5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
6 // at your option, any later version. See the LICENSE.txt file for the text of
7 // the license.
8 //-----------------------------------------------------------------------------
9 // The main application code. This is the first thing called after start.c
10 // executes.
11 //-----------------------------------------------------------------------------
12
13 #include "usb_cdc.h"
14 #include "cmd.h"
15
16 #include "proxmark3.h"
17 #include "apps.h"
18 #include "util.h"
19 #include "printf.h"
20 #include "string.h"
21
22 #include <stdarg.h>
23
24 #include "legicrf.h"
25 #include <hitag2.h>
26 #include "lfsampling.h"
27 #include "BigBuf.h"
28 #ifdef WITH_LCD
29 #include "LCD.h"
30 #endif
31
32 #define abs(x) ( ((x)<0) ? -(x) : (x) )
33
34 //=============================================================================
35 // A buffer where we can queue things up to be sent through the FPGA, for
36 // any purpose (fake tag, as reader, whatever). We go MSB first, since that
37 // is the order in which they go out on the wire.
38 //=============================================================================
39
40 #define TOSEND_BUFFER_SIZE (9*MAX_FRAME_SIZE + 1 + 1 + 2) // 8 data bits and 1 parity bit per payload byte, 1 correction bit, 1 SOC bit, 2 EOC bits
41 uint8_t ToSend[TOSEND_BUFFER_SIZE];
42 int ToSendMax;
43 static int ToSendBit;
44 struct common_area common_area __attribute__((section(".commonarea")));
45
46 void ToSendReset(void)
47 {
48 ToSendMax = -1;
49 ToSendBit = 8;
50 }
51
52 void ToSendStuffBit(int b)
53 {
54 if(ToSendBit >= 8) {
55 ToSendMax++;
56 ToSend[ToSendMax] = 0;
57 ToSendBit = 0;
58 }
59
60 if(b) {
61 ToSend[ToSendMax] |= (1 << (7 - ToSendBit));
62 }
63
64 ToSendBit++;
65
66 if(ToSendMax >= sizeof(ToSend)) {
67 ToSendBit = 0;
68 DbpString("ToSendStuffBit overflowed!");
69 }
70 }
71
72 //=============================================================================
73 // Debug print functions, to go out over USB, to the usual PC-side client.
74 //=============================================================================
75
76 void DbpString(char *str)
77 {
78 byte_t len = strlen(str);
79 cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len);
80 }
81
82 #if 0
83 void DbpIntegers(int x1, int x2, int x3)
84 {
85 cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
86 }
87 #endif
88
89 void Dbprintf(const char *fmt, ...) {
90 // should probably limit size here; oh well, let's just use a big buffer
91 char output_string[128];
92 va_list ap;
93
94 va_start(ap, fmt);
95 kvsprintf(fmt, output_string, 10, ap);
96 va_end(ap);
97
98 DbpString(output_string);
99 }
100
101 // prints HEX & ASCII
102 void Dbhexdump(int len, uint8_t *d, bool bAsci) {
103 int l=0,i;
104 char ascii[9];
105
106 while (len>0) {
107 if (len>8) l=8;
108 else l=len;
109
110 memcpy(ascii,d,l);
111 ascii[l]=0;
112
113 // filter safe ascii
114 for (i=0;i<l;i++)
115 if (ascii[i]<32 || ascii[i]>126) ascii[i]='.';
116
117 if (bAsci) {
118 Dbprintf("%-8s %*D",ascii,l,d," ");
119 } else {
120 Dbprintf("%*D",l,d," ");
121 }
122
123 len-=8;
124 d+=8;
125 }
126 }
127
128 //-----------------------------------------------------------------------------
129 // Read an ADC channel and block till it completes, then return the result
130 // in ADC units (0 to 1023). Also a routine to average 32 samples and
131 // return that.
132 //-----------------------------------------------------------------------------
133 static int ReadAdc(int ch)
134 {
135 uint32_t d;
136
137 AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
138 AT91C_BASE_ADC->ADC_MR =
139 ADC_MODE_PRESCALE(63 /* was 32 */) | // ADC_CLK = MCK / ((63+1) * 2) = 48MHz / 128 = 375kHz
140 ADC_MODE_STARTUP_TIME(1 /* was 16 */) | // Startup Time = (1+1) * 8 / ADC_CLK = 16 / 375kHz = 42,7us Note: must be > 20us
141 ADC_MODE_SAMPLE_HOLD_TIME(15 /* was 8 */); // Sample & Hold Time SHTIM = 15 / ADC_CLK = 15 / 375kHz = 40us
142
143 // Note: ADC_MODE_PRESCALE and ADC_MODE_SAMPLE_HOLD_TIME are set to the maximum allowed value.
144 // Both AMPL_LO and AMPL_HI are very high impedance (10MOhm) outputs, the input capacitance of the ADC is 12pF (typical). This results in a time constant
145 // of RC = 10MOhm * 12pF = 120us. Even after the maximum configurable sample&hold time of 40us the input capacitor will not be fully charged.
146 //
147 // The maths are:
148 // If there is a voltage v_in at the input, the voltage v_cap at the capacitor (this is what we are measuring) will be
149 //
150 // v_cap = v_in * (1 - exp(-RC/SHTIM)) = v_in * (1 - exp(-3)) = v_in * 0,95 (i.e. an error of 5%)
151 //
152 // Note: with the "historic" values in the comments above, the error was 34% !!!
153
154 AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
155
156 AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
157
158 while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
159 ;
160 d = AT91C_BASE_ADC->ADC_CDR[ch];
161
162 return d;
163 }
164
165 int AvgAdc(int ch) // was static - merlok
166 {
167 int i;
168 int a = 0;
169
170 for(i = 0; i < 32; i++) {
171 a += ReadAdc(ch);
172 }
173
174 return (a + 15) >> 5;
175 }
176
177 void MeasureAntennaTuning(void)
178 {
179 uint8_t LF_Results[256];
180 int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0
181 int vLf125 = 0, vLf134 = 0, vHf = 0; // in mV
182
183 LED_B_ON();
184
185 /*
186 * Sweeps the useful LF range of the proxmark from
187 * 46.8kHz (divisor=255) to 600kHz (divisor=19) and
188 * read the voltage in the antenna, the result left
189 * in the buffer is a graph which should clearly show
190 * the resonating frequency of your LF antenna
191 * ( hopefully around 95 if it is tuned to 125kHz!)
192 */
193
194 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
195 FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
196 for (i=255; i>=19; i--) {
197 WDT_HIT();
198 FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
199 SpinDelay(20);
200 adcval = ((MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10);
201 if (i==95) vLf125 = adcval; // voltage at 125Khz
202 if (i==89) vLf134 = adcval; // voltage at 134Khz
203
204 LF_Results[i] = adcval>>8; // scale int to fit in byte for graphing purposes
205 if(LF_Results[i] > peak) {
206 peakv = adcval;
207 peak = LF_Results[i];
208 peakf = i;
209 //ptr = i;
210 }
211 }
212
213 for (i=18; i >= 0; i--) LF_Results[i] = 0;
214
215 LED_A_ON();
216 // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
217 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
218 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
219 SpinDelay(20);
220 vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
221
222 cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125 | (vLf134<<16), vHf, peakf | (peakv<<16), LF_Results, 256);
223 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
224 LED_A_OFF();
225 LED_B_OFF();
226 return;
227 }
228
229 void MeasureAntennaTuningHf(void)
230 {
231 int vHf = 0; // in mV
232
233 DbpString("Measuring HF antenna, press button to exit");
234
235 // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
236 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
237 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
238
239 for (;;) {
240 SpinDelay(20);
241 vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
242
243 Dbprintf("%d mV",vHf);
244 if (BUTTON_PRESS()) break;
245 }
246 DbpString("cancelled");
247
248 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
249
250 }
251
252
253 void SimulateTagHfListen(void)
254 {
255 // ToDo: historically this used the free buffer, which was 2744 Bytes long.
256 // There might be a better size to be defined:
257 #define HF_14B_SNOOP_BUFFER_SIZE 2744
258 uint8_t *dest = BigBuf_malloc(HF_14B_SNOOP_BUFFER_SIZE);
259 uint8_t v = 0;
260 int i;
261 int p = 0;
262
263 // We're using this mode just so that I can test it out; the simulated
264 // tag mode would work just as well and be simpler.
265 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
266 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_848_KHZ | FPGA_HF_READER_RX_XCORR_SNOOP);
267
268 // We need to listen to the high-frequency, peak-detected path.
269 SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
270
271 FpgaSetupSsc();
272
273 i = 0;
274 for(;;) {
275 if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
276 AT91C_BASE_SSC->SSC_THR = 0xff;
277 }
278 if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
279 uint8_t r = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
280
281 v <<= 1;
282 if(r & 1) {
283 v |= 1;
284 }
285 p++;
286
287 if(p >= 8) {
288 dest[i] = v;
289 v = 0;
290 p = 0;
291 i++;
292
293 if(i >= HF_14B_SNOOP_BUFFER_SIZE) {
294 break;
295 }
296 }
297 }
298 }
299 DbpString("simulate tag (now type bitsamples)");
300 }
301
302 void ReadMem(int addr)
303 {
304 const uint8_t *data = ((uint8_t *)addr);
305
306 Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
307 addr, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
308 }
309
310 /* osimage version information is linked in */
311 extern struct version_information version_information;
312 /* bootrom version information is pointed to from _bootphase1_version_pointer */
313 extern char *_bootphase1_version_pointer, _flash_start, _flash_end;
314 void SendVersion(void)
315 {
316 char temp[512]; /* Limited data payload in USB packets */
317 DbpString("Prox/RFID mark3 RFID instrument");
318
319 /* Try to find the bootrom version information. Expect to find a pointer at
320 * symbol _bootphase1_version_pointer, perform slight sanity checks on the
321 * pointer, then use it.
322 */
323 char *bootrom_version = *(char**)&_bootphase1_version_pointer;
324 if( bootrom_version < &_flash_start || bootrom_version >= &_flash_end ) {
325 DbpString("bootrom version information appears invalid");
326 } else {
327 FormatVersionInformation(temp, sizeof(temp), "bootrom: ", bootrom_version);
328 DbpString(temp);
329 }
330
331 FormatVersionInformation(temp, sizeof(temp), "os: ", &version_information);
332 DbpString(temp);
333
334 FpgaGatherVersion(temp, sizeof(temp));
335 DbpString(temp);
336 // Send Chip ID
337 cmd_send(CMD_ACK,*(AT91C_DBGU_CIDR),0,0,NULL,0);
338 }
339
340 #ifdef WITH_LF
341 // samy's sniff and repeat routine
342 void SamyRun()
343 {
344 DbpString("Stand-alone mode! No PC necessary.");
345 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
346
347 // 3 possible options? no just 2 for now
348 #define OPTS 2
349
350 int high[OPTS], low[OPTS];
351
352 // Oooh pretty -- notify user we're in elite samy mode now
353 LED(LED_RED, 200);
354 LED(LED_ORANGE, 200);
355 LED(LED_GREEN, 200);
356 LED(LED_ORANGE, 200);
357 LED(LED_RED, 200);
358 LED(LED_ORANGE, 200);
359 LED(LED_GREEN, 200);
360 LED(LED_ORANGE, 200);
361 LED(LED_RED, 200);
362
363 int selected = 0;
364 int playing = 0;
365 int cardRead = 0;
366
367 // Turn on selected LED
368 LED(selected + 1, 0);
369
370 for (;;)
371 {
372 usb_poll();
373 WDT_HIT();
374
375 // Was our button held down or pressed?
376 int button_pressed = BUTTON_HELD(1000);
377 SpinDelay(300);
378
379 // Button was held for a second, begin recording
380 if (button_pressed > 0 && cardRead == 0)
381 {
382 LEDsoff();
383 LED(selected + 1, 0);
384 LED(LED_RED2, 0);
385
386 // record
387 DbpString("Starting recording");
388
389 // wait for button to be released
390 while(BUTTON_PRESS())
391 WDT_HIT();
392
393 /* need this delay to prevent catching some weird data */
394 SpinDelay(500);
395
396 CmdHIDdemodFSK(1, &high[selected], &low[selected], 0);
397 Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]);
398
399 LEDsoff();
400 LED(selected + 1, 0);
401 // Finished recording
402
403 // If we were previously playing, set playing off
404 // so next button push begins playing what we recorded
405 playing = 0;
406
407 cardRead = 1;
408
409 }
410
411 else if (button_pressed > 0 && cardRead == 1)
412 {
413 LEDsoff();
414 LED(selected + 1, 0);
415 LED(LED_ORANGE, 0);
416
417 // record
418 Dbprintf("Cloning %x %x %x", selected, high[selected], low[selected]);
419
420 // wait for button to be released
421 while(BUTTON_PRESS())
422 WDT_HIT();
423
424 /* need this delay to prevent catching some weird data */
425 SpinDelay(500);
426
427 CopyHIDtoT55x7(high[selected], low[selected], 0, 0);
428 Dbprintf("Cloned %x %x %x", selected, high[selected], low[selected]);
429
430 LEDsoff();
431 LED(selected + 1, 0);
432 // Finished recording
433
434 // If we were previously playing, set playing off
435 // so next button push begins playing what we recorded
436 playing = 0;
437
438 cardRead = 0;
439
440 }
441
442 // Change where to record (or begin playing)
443 else if (button_pressed)
444 {
445 // Next option if we were previously playing
446 if (playing)
447 selected = (selected + 1) % OPTS;
448 playing = !playing;
449
450 LEDsoff();
451 LED(selected + 1, 0);
452
453 // Begin transmitting
454 if (playing)
455 {
456 LED(LED_GREEN, 0);
457 DbpString("Playing");
458 // wait for button to be released
459 while(BUTTON_PRESS())
460 WDT_HIT();
461 Dbprintf("%x %x %x", selected, high[selected], low[selected]);
462 CmdHIDsimTAG(high[selected], low[selected], 0);
463 DbpString("Done playing");
464 if (BUTTON_HELD(1000) > 0)
465 {
466 DbpString("Exiting");
467 LEDsoff();
468 return;
469 }
470
471 /* We pressed a button so ignore it here with a delay */
472 SpinDelay(300);
473
474 // when done, we're done playing, move to next option
475 selected = (selected + 1) % OPTS;
476 playing = !playing;
477 LEDsoff();
478 LED(selected + 1, 0);
479 }
480 else
481 while(BUTTON_PRESS())
482 WDT_HIT();
483 }
484 }
485 }
486 #endif
487
488 /*
489 OBJECTIVE
490 Listen and detect an external reader. Determine the best location
491 for the antenna.
492
493 INSTRUCTIONS:
494 Inside the ListenReaderField() function, there is two mode.
495 By default, when you call the function, you will enter mode 1.
496 If you press the PM3 button one time, you will enter mode 2.
497 If you press the PM3 button a second time, you will exit the function.
498
499 DESCRIPTION OF MODE 1:
500 This mode just listens for an external reader field and lights up green
501 for HF and/or red for LF. This is the original mode of the detectreader
502 function.
503
504 DESCRIPTION OF MODE 2:
505 This mode will visually represent, using the LEDs, the actual strength of the
506 current compared to the maximum current detected. Basically, once you know
507 what kind of external reader is present, it will help you spot the best location to place
508 your antenna. You will probably not get some good results if there is a LF and a HF reader
509 at the same place! :-)
510
511 LIGHT SCHEME USED:
512 */
513 static const char LIGHT_SCHEME[] = {
514 0x0, /* ---- | No field detected */
515 0x1, /* X--- | 14% of maximum current detected */
516 0x2, /* -X-- | 29% of maximum current detected */
517 0x4, /* --X- | 43% of maximum current detected */
518 0x8, /* ---X | 57% of maximum current detected */
519 0xC, /* --XX | 71% of maximum current detected */
520 0xE, /* -XXX | 86% of maximum current detected */
521 0xF, /* XXXX | 100% of maximum current detected */
522 };
523 static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]);
524
525 void ListenReaderField(int limit)
526 {
527 int lf_av, lf_av_new, lf_baseline= 0, lf_max;
528 int hf_av, hf_av_new, hf_baseline= 0, hf_max;
529 int mode=1, display_val, display_max, i;
530
531 #define LF_ONLY 1
532 #define HF_ONLY 2
533 #define REPORT_CHANGE 10 // report new values only if they have changed at least by REPORT_CHANGE
534
535
536 // switch off FPGA - we don't want to measure our own signal
537 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
538 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
539
540 LEDsoff();
541
542 lf_av = lf_max = AvgAdc(ADC_CHAN_LF);
543
544 if(limit != HF_ONLY) {
545 Dbprintf("LF 125/134kHz Baseline: %dmV", (MAX_ADC_LF_VOLTAGE * lf_av) >> 10);
546 lf_baseline = lf_av;
547 }
548
549 hf_av = hf_max = AvgAdc(ADC_CHAN_HF);
550
551 if (limit != LF_ONLY) {
552 Dbprintf("HF 13.56MHz Baseline: %dmV", (MAX_ADC_HF_VOLTAGE * hf_av) >> 10);
553 hf_baseline = hf_av;
554 }
555
556 for(;;) {
557 if (BUTTON_PRESS()) {
558 SpinDelay(500);
559 switch (mode) {
560 case 1:
561 mode=2;
562 DbpString("Signal Strength Mode");
563 break;
564 case 2:
565 default:
566 DbpString("Stopped");
567 LEDsoff();
568 return;
569 break;
570 }
571 }
572 WDT_HIT();
573
574 if (limit != HF_ONLY) {
575 if(mode == 1) {
576 if (abs(lf_av - lf_baseline) > REPORT_CHANGE)
577 LED_D_ON();
578 else
579 LED_D_OFF();
580 }
581
582 lf_av_new = AvgAdc(ADC_CHAN_LF);
583 // see if there's a significant change
584 if(abs(lf_av - lf_av_new) > REPORT_CHANGE) {
585 Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10);
586 lf_av = lf_av_new;
587 if (lf_av > lf_max)
588 lf_max = lf_av;
589 }
590 }
591
592 if (limit != LF_ONLY) {
593 if (mode == 1){
594 if (abs(hf_av - hf_baseline) > REPORT_CHANGE)
595 LED_B_ON();
596 else
597 LED_B_OFF();
598 }
599
600 hf_av_new = AvgAdc(ADC_CHAN_HF);
601 // see if there's a significant change
602 if(abs(hf_av - hf_av_new) > REPORT_CHANGE) {
603 Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10);
604 hf_av = hf_av_new;
605 if (hf_av > hf_max)
606 hf_max = hf_av;
607 }
608 }
609
610 if(mode == 2) {
611 if (limit == LF_ONLY) {
612 display_val = lf_av;
613 display_max = lf_max;
614 } else if (limit == HF_ONLY) {
615 display_val = hf_av;
616 display_max = hf_max;
617 } else { /* Pick one at random */
618 if( (hf_max - hf_baseline) > (lf_max - lf_baseline) ) {
619 display_val = hf_av;
620 display_max = hf_max;
621 } else {
622 display_val = lf_av;
623 display_max = lf_max;
624 }
625 }
626 for (i=0; i<LIGHT_LEN; i++) {
627 if (display_val >= ((display_max/LIGHT_LEN)*i) && display_val <= ((display_max/LIGHT_LEN)*(i+1))) {
628 if (LIGHT_SCHEME[i] & 0x1) LED_C_ON(); else LED_C_OFF();
629 if (LIGHT_SCHEME[i] & 0x2) LED_A_ON(); else LED_A_OFF();
630 if (LIGHT_SCHEME[i] & 0x4) LED_B_ON(); else LED_B_OFF();
631 if (LIGHT_SCHEME[i] & 0x8) LED_D_ON(); else LED_D_OFF();
632 break;
633 }
634 }
635 }
636 }
637 }
638
639 void UsbPacketReceived(uint8_t *packet, int len)
640 {
641 UsbCommand *c = (UsbCommand *)packet;
642
643 // Dbprintf("received %d bytes, with command: 0x%04x and args: %d %d %d",len,c->cmd,c->arg[0],c->arg[1],c->arg[2]);
644
645 switch(c->cmd) {
646 #ifdef WITH_LF
647 case CMD_SET_LF_SAMPLING_CONFIG:
648 setSamplingConfig((sample_config *) c->d.asBytes);
649 break;
650 case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K:
651 cmd_send(CMD_ACK,SampleLF(c->arg[0]),0,0,0,0);
652 break;
653 case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
654 ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
655 break;
656 case CMD_LF_SNOOP_RAW_ADC_SAMPLES:
657 cmd_send(CMD_ACK,SnoopLF(),0,0,0,0);
658 break;
659 case CMD_HID_DEMOD_FSK:
660 CmdHIDdemodFSK(c->arg[0], 0, 0, 1);
661 break;
662 case CMD_HID_SIM_TAG:
663 CmdHIDsimTAG(c->arg[0], c->arg[1], 1);
664 break;
665 case CMD_FSK_SIM_TAG:
666 CmdFSKsimTAG(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
667 break;
668 case CMD_ASK_SIM_TAG:
669 CmdASKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
670 break;
671 case CMD_PSK_SIM_TAG:
672 CmdPSKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
673 break;
674 case CMD_HID_CLONE_TAG:
675 CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
676 break;
677 case CMD_IO_DEMOD_FSK:
678 CmdIOdemodFSK(c->arg[0], 0, 0, 1);
679 break;
680 case CMD_IO_CLONE_TAG:
681 CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
682 break;
683 case CMD_EM410X_DEMOD:
684 CmdEM410xdemod(c->arg[0], 0, 0, 1);
685 break;
686 case CMD_EM410X_WRITE_TAG:
687 WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
688 break;
689 case CMD_READ_TI_TYPE:
690 ReadTItag();
691 break;
692 case CMD_WRITE_TI_TYPE:
693 WriteTItag(c->arg[0],c->arg[1],c->arg[2]);
694 break;
695 case CMD_SIMULATE_TAG_125K:
696 LED_A_ON();
697 SimulateTagLowFrequency(c->arg[0], c->arg[1], 1);
698 LED_A_OFF();
699 break;
700 case CMD_LF_SIMULATE_BIDIR:
701 SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
702 break;
703 case CMD_INDALA_CLONE_TAG:
704 CopyIndala64toT55x7(c->arg[0], c->arg[1]);
705 break;
706 case CMD_INDALA_CLONE_TAG_L:
707 CopyIndala224toT55x7(c->d.asDwords[0], c->d.asDwords[1], c->d.asDwords[2], c->d.asDwords[3], c->d.asDwords[4], c->d.asDwords[5], c->d.asDwords[6]);
708 break;
709 case CMD_T55XX_READ_BLOCK:
710 T55xxReadBlock(c->arg[1], c->arg[2],c->d.asBytes[0]);
711 break;
712 case CMD_T55XX_WRITE_BLOCK:
713 T55xxWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
714 break;
715 case CMD_T55XX_READ_TRACE:
716 T55xxReadTrace();
717 break;
718 case CMD_PCF7931_READ:
719 ReadPCF7931();
720 cmd_send(CMD_ACK,0,0,0,0,0);
721 break;
722 case CMD_EM4X_READ_WORD:
723 EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
724 break;
725 case CMD_EM4X_WRITE_WORD:
726 EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
727 break;
728 #endif
729
730 #ifdef WITH_HITAG
731 case CMD_SNOOP_HITAG: // Eavesdrop Hitag tag, args = type
732 SnoopHitag(c->arg[0]);
733 break;
734 case CMD_SIMULATE_HITAG: // Simulate Hitag tag, args = memory content
735 SimulateHitagTag((bool)c->arg[0],(byte_t*)c->d.asBytes);
736 break;
737 case CMD_READER_HITAG: // Reader for Hitag tags, args = type and function
738 ReaderHitag((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
739 break;
740 #endif
741
742 #ifdef WITH_ISO15693
743 case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
744 AcquireRawAdcSamplesIso15693();
745 break;
746 case CMD_RECORD_RAW_ADC_SAMPLES_ISO_15693:
747 RecordRawAdcSamplesIso15693();
748 break;
749
750 case CMD_ISO_15693_COMMAND:
751 DirectTag15693Command(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
752 break;
753
754 case CMD_ISO_15693_FIND_AFI:
755 BruteforceIso15693Afi(c->arg[0]);
756 break;
757
758 case CMD_ISO_15693_DEBUG:
759 SetDebugIso15693(c->arg[0]);
760 break;
761
762 case CMD_READER_ISO_15693:
763 ReaderIso15693(c->arg[0]);
764 break;
765 case CMD_SIMTAG_ISO_15693:
766 SimTagIso15693(c->arg[0], c->d.asBytes);
767 break;
768 #endif
769
770 #ifdef WITH_LEGICRF
771 case CMD_SIMULATE_TAG_LEGIC_RF:
772 LegicRfSimulate(c->arg[0], c->arg[1], c->arg[2]);
773 break;
774
775 case CMD_WRITER_LEGIC_RF:
776 LegicRfWriter(c->arg[1], c->arg[0]);
777 break;
778
779 case CMD_READER_LEGIC_RF:
780 LegicRfReader(c->arg[0], c->arg[1]);
781 break;
782 #endif
783
784 #ifdef WITH_ISO14443b
785 case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443:
786 AcquireRawAdcSamplesIso14443(c->arg[0]);
787 break;
788 case CMD_READ_SRI512_TAG:
789 ReadSTMemoryIso14443(0x0F);
790 break;
791 case CMD_READ_SRIX4K_TAG:
792 ReadSTMemoryIso14443(0x7F);
793 break;
794 case CMD_SNOOP_ISO_14443:
795 SnoopIso14443();
796 break;
797 case CMD_SIMULATE_TAG_ISO_14443:
798 SimulateIso14443Tag();
799 break;
800 case CMD_ISO_14443B_COMMAND:
801 SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
802 break;
803 #endif
804
805 #ifdef WITH_ISO14443a
806 case CMD_SNOOP_ISO_14443a:
807 SnoopIso14443a(c->arg[0]);
808 break;
809 case CMD_READER_ISO_14443a:
810 ReaderIso14443a(c);
811 break;
812 case CMD_SIMULATE_TAG_ISO_14443a:
813 SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); // ## Simulate iso14443a tag - pass tag type & UID
814 break;
815
816 case CMD_EPA_PACE_COLLECT_NONCE:
817 EPA_PACE_Collect_Nonce(c);
818 break;
819
820 case CMD_READER_MIFARE:
821 ReaderMifare(c->arg[0]);
822 break;
823 case CMD_MIFARE_READBL:
824 MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
825 break;
826 case CMD_MIFAREU_READBL:
827 MifareUReadBlock(c->arg[0],c->arg[1], c->d.asBytes);
828 break;
829 case CMD_MIFAREUC_AUTH:
830 MifareUC_Auth(c->arg[0],c->d.asBytes);
831 break;
832 case CMD_MIFAREU_READCARD:
833 MifareUReadCard(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
834 break;
835 case CMD_MIFAREUC_SETPWD:
836 MifareUSetPwd(c->arg[0], c->d.asBytes);
837 break;
838 case CMD_MIFARE_READSC:
839 MifareReadSector(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
840 break;
841 case CMD_MIFARE_WRITEBL:
842 MifareWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
843 break;
844 case CMD_MIFAREU_WRITEBL_COMPAT:
845 MifareUWriteBlock(c->arg[0], c->d.asBytes);
846 break;
847 case CMD_MIFAREU_WRITEBL:
848 MifareUWriteBlock_Special(c->arg[0], c->arg[1], c->d.asBytes);
849 break;
850 case CMD_MIFARE_NESTED:
851 MifareNested(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
852 break;
853 case CMD_MIFARE_CHKKEYS:
854 MifareChkKeys(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
855 break;
856 case CMD_SIMULATE_MIFARE_CARD:
857 Mifare1ksim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
858 break;
859
860 // emulator
861 case CMD_MIFARE_SET_DBGMODE:
862 MifareSetDbgLvl(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
863 break;
864 case CMD_MIFARE_EML_MEMCLR:
865 MifareEMemClr(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
866 break;
867 case CMD_MIFARE_EML_MEMSET:
868 MifareEMemSet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
869 break;
870 case CMD_MIFARE_EML_MEMGET:
871 MifareEMemGet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
872 break;
873 case CMD_MIFARE_EML_CARDLOAD:
874 MifareECardLoad(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
875 break;
876
877 // Work with "magic Chinese" card
878 case CMD_MIFARE_CSETBLOCK:
879 MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
880 break;
881 case CMD_MIFARE_CGETBLOCK:
882 MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
883 break;
884 case CMD_MIFARE_CIDENT:
885 MifareCIdent();
886 break;
887
888 // mifare sniffer
889 case CMD_MIFARE_SNIFFER:
890 SniffMifare(c->arg[0]);
891 break;
892
893 #endif
894
895 #ifdef WITH_ICLASS
896 // Makes use of ISO14443a FPGA Firmware
897 case CMD_SNOOP_ICLASS:
898 SnoopIClass();
899 break;
900 case CMD_SIMULATE_TAG_ICLASS:
901 SimulateIClass(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
902 break;
903 case CMD_READER_ICLASS:
904 ReaderIClass(c->arg[0]);
905 break;
906 case CMD_READER_ICLASS_REPLAY:
907 ReaderIClass_Replay(c->arg[0], c->d.asBytes);
908 break;
909 case CMD_ICLASS_EML_MEMSET:
910 emlSet(c->d.asBytes,c->arg[0], c->arg[1]);
911 break;
912 #endif
913
914 case CMD_SIMULATE_TAG_HF_LISTEN:
915 SimulateTagHfListen();
916 break;
917
918 case CMD_BUFF_CLEAR:
919 BigBuf_Clear();
920 break;
921
922 case CMD_MEASURE_ANTENNA_TUNING:
923 MeasureAntennaTuning();
924 break;
925
926 case CMD_MEASURE_ANTENNA_TUNING_HF:
927 MeasureAntennaTuningHf();
928 break;
929
930 case CMD_LISTEN_READER_FIELD:
931 ListenReaderField(c->arg[0]);
932 break;
933
934 case CMD_FPGA_MAJOR_MODE_OFF: // ## FPGA Control
935 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
936 SpinDelay(200);
937 LED_D_OFF(); // LED D indicates field ON or OFF
938 break;
939
940 case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
941
942 LED_B_ON();
943 uint8_t *BigBuf = BigBuf_get_addr();
944 for(size_t i=0; i<c->arg[1]; i += USB_CMD_DATA_SIZE) {
945 size_t len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
946 cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,BigBuf_get_traceLen(),BigBuf+c->arg[0]+i,len);
947 }
948 // Trigger a finish downloading signal with an ACK frame
949 cmd_send(CMD_ACK,1,0,BigBuf_get_traceLen(),getSamplingConfig(),sizeof(sample_config));
950 LED_B_OFF();
951 break;
952
953 case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
954 uint8_t *b = BigBuf_get_addr();
955 memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
956 cmd_send(CMD_ACK,0,0,0,0,0);
957 break;
958 }
959 case CMD_READ_MEM:
960 ReadMem(c->arg[0]);
961 break;
962
963 case CMD_SET_LF_DIVISOR:
964 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
965 FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
966 break;
967
968 case CMD_SET_ADC_MUX:
969 switch(c->arg[0]) {
970 case 0: SetAdcMuxFor(GPIO_MUXSEL_LOPKD); break;
971 case 1: SetAdcMuxFor(GPIO_MUXSEL_LORAW); break;
972 case 2: SetAdcMuxFor(GPIO_MUXSEL_HIPKD); break;
973 case 3: SetAdcMuxFor(GPIO_MUXSEL_HIRAW); break;
974 }
975 break;
976
977 case CMD_VERSION:
978 SendVersion();
979 break;
980
981 #ifdef WITH_LCD
982 case CMD_LCD_RESET:
983 LCDReset();
984 break;
985 case CMD_LCD:
986 LCDSend(c->arg[0]);
987 break;
988 #endif
989 case CMD_SETUP_WRITE:
990 case CMD_FINISH_WRITE:
991 case CMD_HARDWARE_RESET:
992 usb_disable();
993 SpinDelay(1000);
994 SpinDelay(1000);
995 AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
996 for(;;) {
997 // We're going to reset, and the bootrom will take control.
998 }
999 break;
1000
1001 case CMD_START_FLASH:
1002 if(common_area.flags.bootrom_present) {
1003 common_area.command = COMMON_AREA_COMMAND_ENTER_FLASH_MODE;
1004 }
1005 usb_disable();
1006 AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
1007 for(;;);
1008 break;
1009
1010 case CMD_DEVICE_INFO: {
1011 uint32_t dev_info = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
1012 if(common_area.flags.bootrom_present) dev_info |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;
1013 cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);
1014 break;
1015 }
1016 default:
1017 Dbprintf("%s: 0x%04x","unknown command:",c->cmd);
1018 break;
1019 }
1020 }
1021
1022 void __attribute__((noreturn)) AppMain(void)
1023 {
1024 SpinDelay(100);
1025 clear_trace();
1026 if(common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
1027 /* Initialize common area */
1028 memset(&common_area, 0, sizeof(common_area));
1029 common_area.magic = COMMON_AREA_MAGIC;
1030 common_area.version = 1;
1031 }
1032 common_area.flags.osimage_present = 1;
1033
1034 LED_D_OFF();
1035 LED_C_OFF();
1036 LED_B_OFF();
1037 LED_A_OFF();
1038
1039 // Init USB device
1040 usb_enable();
1041
1042 // The FPGA gets its clock from us from PCK0 output, so set that up.
1043 AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;
1044 AT91C_BASE_PIOA->PIO_PDR = GPIO_PCK0;
1045 AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_PCK0;
1046 // PCK0 is PLL clock / 4 = 96Mhz / 4 = 24Mhz
1047 AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK |
1048 AT91C_PMC_PRES_CLK_4;
1049 AT91C_BASE_PIOA->PIO_OER = GPIO_PCK0;
1050
1051 // Reset SPI
1052 AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
1053 // Reset SSC
1054 AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
1055
1056 // Load the FPGA image, which we have stored in our flash.
1057 // (the HF version by default)
1058 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
1059
1060 StartTickCount();
1061
1062 #ifdef WITH_LCD
1063 LCDInit();
1064 #endif
1065
1066 byte_t rx[sizeof(UsbCommand)];
1067 size_t rx_len;
1068
1069 for(;;) {
1070 if (usb_poll()) {
1071 rx_len = usb_read(rx,sizeof(UsbCommand));
1072 if (rx_len) {
1073 UsbPacketReceived(rx,rx_len);
1074 }
1075 }
1076 WDT_HIT();
1077
1078 #ifdef WITH_LF
1079 if (BUTTON_HELD(1000) > 0)
1080 SamyRun();
1081 #endif
1082 }
1083 }
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