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Minor bounds checks for setDemodBuf and printDemodBuff
[proxmark3-svn] / armsrc / appmain.c
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 "../common/usb_cdc.h"
14 #include "../common/cmd.h"
15
16 #include "../include/proxmark3.h"
17 #include "apps.h"
18 #include "util.h"
19 #include "printf.h"
20 #include "string.h"
21 #include <stdarg.h>
22
23 #include "legicrf.h"
24 #include "../include/hitag2.h"
25
26
27 #ifdef WITH_LCD
28 #include "LCD.h"
29 #endif
30
31 #define abs(x) ( ((x)<0) ? -(x) : (x) )
32
33 //=============================================================================
34 // A buffer where we can queue things up to be sent through the FPGA, for
35 // any purpose (fake tag, as reader, whatever). We go MSB first, since that
36 // is the order in which they go out on the wire.
37 //=============================================================================
38
39 #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
40 uint8_t ToSend[TOSEND_BUFFER_SIZE];
41 int ToSendMax;
42 static int ToSendBit;
43 struct common_area common_area __attribute__((section(".commonarea")));
44
45 void ToSendReset(void)
46 {
47 ToSendMax = -1;
48 ToSendBit = 8;
49 }
50
51 void ToSendStuffBit(int b)
52 {
53 if(ToSendBit >= 8) {
54 ToSendMax++;
55 ToSend[ToSendMax] = 0;
56 ToSendBit = 0;
57 }
58
59 if(b) {
60 ToSend[ToSendMax] |= (1 << (7 - ToSendBit));
61 }
62
63 ToSendBit++;
64
65 if(ToSendMax >= sizeof(ToSend)) {
66 ToSendBit = 0;
67 DbpString("ToSendStuffBit overflowed!");
68 }
69 }
70
71 //=============================================================================
72 // Debug print functions, to go out over USB, to the usual PC-side client.
73 //=============================================================================
74
75 void DbpString(char *str)
76 {
77 byte_t len = strlen(str);
78 cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len);
79 }
80
81 #if 0
82 void DbpIntegers(int x1, int x2, int x3)
83 {
84 cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
85 }
86 #endif
87
88 void Dbprintf(const char *fmt, ...) {
89 // should probably limit size here; oh well, let's just use a big buffer
90 char output_string[128];
91 va_list ap;
92
93 va_start(ap, fmt);
94 kvsprintf(fmt, output_string, 10, ap);
95 va_end(ap);
96
97 DbpString(output_string);
98 }
99
100 // prints HEX & ASCII
101 void Dbhexdump(int len, uint8_t *d, bool bAsci) {
102 int l=0,i;
103 char ascii[9];
104
105 while (len>0) {
106 if (len>8) l=8;
107 else l=len;
108
109 memcpy(ascii,d,l);
110 ascii[l]=0;
111
112 // filter safe ascii
113 for (i=0;i<l;i++)
114 if (ascii[i]<32 || ascii[i]>126) ascii[i]='.';
115
116 if (bAsci) {
117 Dbprintf("%-8s %*D",ascii,l,d," ");
118 } else {
119 Dbprintf("%*D",l,d," ");
120 }
121
122 len-=8;
123 d+=8;
124 }
125 }
126
127 //-----------------------------------------------------------------------------
128 // Read an ADC channel and block till it completes, then return the result
129 // in ADC units (0 to 1023). Also a routine to average 32 samples and
130 // return that.
131 //-----------------------------------------------------------------------------
132 static int ReadAdc(int ch)
133 {
134 uint32_t d;
135
136 AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
137 AT91C_BASE_ADC->ADC_MR =
138 ADC_MODE_PRESCALE(32) |
139 ADC_MODE_STARTUP_TIME(16) |
140 ADC_MODE_SAMPLE_HOLD_TIME(8);
141 AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
142
143 AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
144 while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
145 ;
146 d = AT91C_BASE_ADC->ADC_CDR[ch];
147
148 return d;
149 }
150
151 int AvgAdc(int ch) // was static - merlok
152 {
153 int i;
154 int a = 0;
155
156 for(i = 0; i < 32; i++) {
157 a += ReadAdc(ch);
158 }
159
160 return (a + 15) >> 5;
161 }
162
163 void MeasureAntennaTuning(void)
164 {
165 uint8_t LF_Results[256];
166 int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0
167 int vLf125 = 0, vLf134 = 0, vHf = 0; // in mV
168
169 LED_B_ON();
170
171 /*
172 * Sweeps the useful LF range of the proxmark from
173 * 46.8kHz (divisor=255) to 600kHz (divisor=19) and
174 * read the voltage in the antenna, the result left
175 * in the buffer is a graph which should clearly show
176 * the resonating frequency of your LF antenna
177 * ( hopefully around 95 if it is tuned to 125kHz!)
178 */
179
180 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
181 FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
182 for (i=255; i>=19; i--) {
183 WDT_HIT();
184 FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
185 SpinDelay(20);
186 // Vref = 3.3V, and a 10000:240 voltage divider on the input
187 // can measure voltages up to 137500 mV
188 adcval = ((137500 * AvgAdc(ADC_CHAN_LF)) >> 10);
189 if (i==95) vLf125 = adcval; // voltage at 125Khz
190 if (i==89) vLf134 = adcval; // voltage at 134Khz
191
192 LF_Results[i] = adcval>>8; // scale int to fit in byte for graphing purposes
193 if(LF_Results[i] > peak) {
194 peakv = adcval;
195 peak = LF_Results[i];
196 peakf = i;
197 //ptr = i;
198 }
199 }
200
201 for (i=18; i >= 0; i--) LF_Results[i] = 0;
202
203 LED_A_ON();
204 // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
205 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
206 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
207 SpinDelay(20);
208 // Vref = 3300mV, and an 10:1 voltage divider on the input
209 // can measure voltages up to 33000 mV
210 vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
211
212 cmd_send(CMD_MEASURED_ANTENNA_TUNING,vLf125|(vLf134<<16),vHf,peakf|(peakv<<16),LF_Results,256);
213 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
214 LED_A_OFF();
215 LED_B_OFF();
216 return;
217 }
218
219 void MeasureAntennaTuningHf(void)
220 {
221 int vHf = 0; // in mV
222
223 DbpString("Measuring HF antenna, press button to exit");
224
225 for (;;) {
226 // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
227 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
228 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
229 SpinDelay(20);
230 // Vref = 3300mV, and an 10:1 voltage divider on the input
231 // can measure voltages up to 33000 mV
232 vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
233
234 Dbprintf("%d mV",vHf);
235 if (BUTTON_PRESS()) break;
236 }
237 DbpString("cancelled");
238 }
239
240
241 void SimulateTagHfListen(void)
242 {
243 // ToDo: historically this used the free buffer, which was 2744 Bytes long.
244 // There might be a better size to be defined:
245 #define HF_14B_SNOOP_BUFFER_SIZE 2744
246 uint8_t *dest = BigBuf_malloc(HF_14B_SNOOP_BUFFER_SIZE);
247 uint8_t v = 0;
248 int i;
249 int p = 0;
250
251 // We're using this mode just so that I can test it out; the simulated
252 // tag mode would work just as well and be simpler.
253 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
254 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_848_KHZ | FPGA_HF_READER_RX_XCORR_SNOOP);
255
256 // We need to listen to the high-frequency, peak-detected path.
257 SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
258
259 FpgaSetupSsc();
260
261 i = 0;
262 for(;;) {
263 if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
264 AT91C_BASE_SSC->SSC_THR = 0xff;
265 }
266 if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
267 uint8_t r = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
268
269 v <<= 1;
270 if(r & 1) {
271 v |= 1;
272 }
273 p++;
274
275 if(p >= 8) {
276 dest[i] = v;
277 v = 0;
278 p = 0;
279 i++;
280
281 if(i >= HF_14B_SNOOP_BUFFER_SIZE) {
282 break;
283 }
284 }
285 }
286 }
287 DbpString("simulate tag (now type bitsamples)");
288 }
289
290 void ReadMem(int addr)
291 {
292 const uint8_t *data = ((uint8_t *)addr);
293
294 Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
295 addr, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
296 }
297
298 /* osimage version information is linked in */
299 extern struct version_information version_information;
300 /* bootrom version information is pointed to from _bootphase1_version_pointer */
301 extern char *_bootphase1_version_pointer, _flash_start, _flash_end;
302 void SendVersion(void)
303 {
304 char temp[512]; /* Limited data payload in USB packets */
305 DbpString("Prox/RFID mark3 RFID instrument");
306
307 /* Try to find the bootrom version information. Expect to find a pointer at
308 * symbol _bootphase1_version_pointer, perform slight sanity checks on the
309 * pointer, then use it.
310 */
311 char *bootrom_version = *(char**)&_bootphase1_version_pointer;
312 if( bootrom_version < &_flash_start || bootrom_version >= &_flash_end ) {
313 DbpString("bootrom version information appears invalid");
314 } else {
315 FormatVersionInformation(temp, sizeof(temp), "bootrom: ", bootrom_version);
316 DbpString(temp);
317 }
318
319 FormatVersionInformation(temp, sizeof(temp), "os: ", &version_information);
320 DbpString(temp);
321
322 FpgaGatherVersion(temp, sizeof(temp));
323 DbpString(temp);
324 // Send Chip ID
325 cmd_send(CMD_ACK,*(AT91C_DBGU_CIDR),0,0,NULL,0);
326 }
327
328 #ifdef WITH_LF
329 // samy's sniff and repeat routine
330 void SamyRun()
331 {
332 DbpString("Stand-alone mode! No PC necessary.");
333 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
334
335 // 3 possible options? no just 2 for now
336 #define OPTS 2
337
338 int high[OPTS], low[OPTS];
339
340 // Oooh pretty -- notify user we're in elite samy mode now
341 LED(LED_RED, 200);
342 LED(LED_ORANGE, 200);
343 LED(LED_GREEN, 200);
344 LED(LED_ORANGE, 200);
345 LED(LED_RED, 200);
346 LED(LED_ORANGE, 200);
347 LED(LED_GREEN, 200);
348 LED(LED_ORANGE, 200);
349 LED(LED_RED, 200);
350
351 int selected = 0;
352 int playing = 0;
353 int cardRead = 0;
354
355 // Turn on selected LED
356 LED(selected + 1, 0);
357
358 for (;;)
359 {
360 usb_poll();
361 WDT_HIT();
362
363 // Was our button held down or pressed?
364 int button_pressed = BUTTON_HELD(1000);
365 SpinDelay(300);
366
367 // Button was held for a second, begin recording
368 if (button_pressed > 0 && cardRead == 0)
369 {
370 LEDsoff();
371 LED(selected + 1, 0);
372 LED(LED_RED2, 0);
373
374 // record
375 DbpString("Starting recording");
376
377 // wait for button to be released
378 while(BUTTON_PRESS())
379 WDT_HIT();
380
381 /* need this delay to prevent catching some weird data */
382 SpinDelay(500);
383
384 CmdHIDdemodFSK(1, &high[selected], &low[selected], 0);
385 Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]);
386
387 LEDsoff();
388 LED(selected + 1, 0);
389 // Finished recording
390
391 // If we were previously playing, set playing off
392 // so next button push begins playing what we recorded
393 playing = 0;
394
395 cardRead = 1;
396
397 }
398
399 else if (button_pressed > 0 && cardRead == 1)
400 {
401 LEDsoff();
402 LED(selected + 1, 0);
403 LED(LED_ORANGE, 0);
404
405 // record
406 Dbprintf("Cloning %x %x %x", selected, high[selected], low[selected]);
407
408 // wait for button to be released
409 while(BUTTON_PRESS())
410 WDT_HIT();
411
412 /* need this delay to prevent catching some weird data */
413 SpinDelay(500);
414
415 CopyHIDtoT55x7(high[selected], low[selected], 0, 0);
416 Dbprintf("Cloned %x %x %x", selected, high[selected], low[selected]);
417
418 LEDsoff();
419 LED(selected + 1, 0);
420 // Finished recording
421
422 // If we were previously playing, set playing off
423 // so next button push begins playing what we recorded
424 playing = 0;
425
426 cardRead = 0;
427
428 }
429
430 // Change where to record (or begin playing)
431 else if (button_pressed)
432 {
433 // Next option if we were previously playing
434 if (playing)
435 selected = (selected + 1) % OPTS;
436 playing = !playing;
437
438 LEDsoff();
439 LED(selected + 1, 0);
440
441 // Begin transmitting
442 if (playing)
443 {
444 LED(LED_GREEN, 0);
445 DbpString("Playing");
446 // wait for button to be released
447 while(BUTTON_PRESS())
448 WDT_HIT();
449 Dbprintf("%x %x %x", selected, high[selected], low[selected]);
450 CmdHIDsimTAG(high[selected], low[selected], 0);
451 DbpString("Done playing");
452 if (BUTTON_HELD(1000) > 0)
453 {
454 DbpString("Exiting");
455 LEDsoff();
456 return;
457 }
458
459 /* We pressed a button so ignore it here with a delay */
460 SpinDelay(300);
461
462 // when done, we're done playing, move to next option
463 selected = (selected + 1) % OPTS;
464 playing = !playing;
465 LEDsoff();
466 LED(selected + 1, 0);
467 }
468 else
469 while(BUTTON_PRESS())
470 WDT_HIT();
471 }
472 }
473 }
474 #endif
475
476 /*
477 OBJECTIVE
478 Listen and detect an external reader. Determine the best location
479 for the antenna.
480
481 INSTRUCTIONS:
482 Inside the ListenReaderField() function, there is two mode.
483 By default, when you call the function, you will enter mode 1.
484 If you press the PM3 button one time, you will enter mode 2.
485 If you press the PM3 button a second time, you will exit the function.
486
487 DESCRIPTION OF MODE 1:
488 This mode just listens for an external reader field and lights up green
489 for HF and/or red for LF. This is the original mode of the detectreader
490 function.
491
492 DESCRIPTION OF MODE 2:
493 This mode will visually represent, using the LEDs, the actual strength of the
494 current compared to the maximum current detected. Basically, once you know
495 what kind of external reader is present, it will help you spot the best location to place
496 your antenna. You will probably not get some good results if there is a LF and a HF reader
497 at the same place! :-)
498
499 LIGHT SCHEME USED:
500 */
501 static const char LIGHT_SCHEME[] = {
502 0x0, /* ---- | No field detected */
503 0x1, /* X--- | 14% of maximum current detected */
504 0x2, /* -X-- | 29% of maximum current detected */
505 0x4, /* --X- | 43% of maximum current detected */
506 0x8, /* ---X | 57% of maximum current detected */
507 0xC, /* --XX | 71% of maximum current detected */
508 0xE, /* -XXX | 86% of maximum current detected */
509 0xF, /* XXXX | 100% of maximum current detected */
510 };
511 static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]);
512
513 void ListenReaderField(int limit)
514 {
515 int lf_av, lf_av_new, lf_baseline= 0, lf_count= 0, lf_max;
516 int hf_av, hf_av_new, hf_baseline= 0, hf_count= 0, hf_max;
517 int mode=1, display_val, display_max, i;
518
519 #define LF_ONLY 1
520 #define HF_ONLY 2
521
522 LEDsoff();
523
524 lf_av=lf_max=ReadAdc(ADC_CHAN_LF);
525
526 if(limit != HF_ONLY) {
527 Dbprintf("LF 125/134 Baseline: %d", lf_av);
528 lf_baseline = lf_av;
529 }
530
531 hf_av=hf_max=ReadAdc(ADC_CHAN_HF);
532
533 if (limit != LF_ONLY) {
534 Dbprintf("HF 13.56 Baseline: %d", hf_av);
535 hf_baseline = hf_av;
536 }
537
538 for(;;) {
539 if (BUTTON_PRESS()) {
540 SpinDelay(500);
541 switch (mode) {
542 case 1:
543 mode=2;
544 DbpString("Signal Strength Mode");
545 break;
546 case 2:
547 default:
548 DbpString("Stopped");
549 LEDsoff();
550 return;
551 break;
552 }
553 }
554 WDT_HIT();
555
556 if (limit != HF_ONLY) {
557 if(mode==1) {
558 if (abs(lf_av - lf_baseline) > 10) LED_D_ON();
559 else LED_D_OFF();
560 }
561
562 ++lf_count;
563 lf_av_new= ReadAdc(ADC_CHAN_LF);
564 // see if there's a significant change
565 if(abs(lf_av - lf_av_new) > 10) {
566 Dbprintf("LF 125/134 Field Change: %x %x %x", lf_av, lf_av_new, lf_count);
567 lf_av = lf_av_new;
568 if (lf_av > lf_max)
569 lf_max = lf_av;
570 lf_count= 0;
571 }
572 }
573
574 if (limit != LF_ONLY) {
575 if (mode == 1){
576 if (abs(hf_av - hf_baseline) > 10) LED_B_ON();
577 else LED_B_OFF();
578 }
579
580 ++hf_count;
581 hf_av_new= ReadAdc(ADC_CHAN_HF);
582 // see if there's a significant change
583 if(abs(hf_av - hf_av_new) > 10) {
584 Dbprintf("HF 13.56 Field Change: %x %x %x", hf_av, hf_av_new, hf_count);
585 hf_av = hf_av_new;
586 if (hf_av > hf_max)
587 hf_max = hf_av;
588 hf_count= 0;
589 }
590 }
591
592 if(mode == 2) {
593 if (limit == LF_ONLY) {
594 display_val = lf_av;
595 display_max = lf_max;
596 } else if (limit == HF_ONLY) {
597 display_val = hf_av;
598 display_max = hf_max;
599 } else { /* Pick one at random */
600 if( (hf_max - hf_baseline) > (lf_max - lf_baseline) ) {
601 display_val = hf_av;
602 display_max = hf_max;
603 } else {
604 display_val = lf_av;
605 display_max = lf_max;
606 }
607 }
608 for (i=0; i<LIGHT_LEN; i++) {
609 if (display_val >= ((display_max/LIGHT_LEN)*i) && display_val <= ((display_max/LIGHT_LEN)*(i+1))) {
610 if (LIGHT_SCHEME[i] & 0x1) LED_C_ON(); else LED_C_OFF();
611 if (LIGHT_SCHEME[i] & 0x2) LED_A_ON(); else LED_A_OFF();
612 if (LIGHT_SCHEME[i] & 0x4) LED_B_ON(); else LED_B_OFF();
613 if (LIGHT_SCHEME[i] & 0x8) LED_D_ON(); else LED_D_OFF();
614 break;
615 }
616 }
617 }
618 }
619 }
620
621 void UsbPacketReceived(uint8_t *packet, int len)
622 {
623 UsbCommand *c = (UsbCommand *)packet;
624
625 //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]);
626
627 switch(c->cmd) {
628 #ifdef WITH_LF
629 case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K:
630 AcquireRawAdcSamples125k(c->arg[0]);
631 cmd_send(CMD_ACK,0,0,0,0,0);
632 break;
633 case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
634 ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
635 break;
636 case CMD_LF_SNOOP_RAW_ADC_SAMPLES:
637 SnoopLFRawAdcSamples(c->arg[0], c->arg[1]);
638 cmd_send(CMD_ACK,0,0,0,0,0);
639 break;
640 case CMD_HID_DEMOD_FSK:
641 CmdHIDdemodFSK(c->arg[0], 0, 0, 1);
642 break;
643 case CMD_HID_SIM_TAG:
644 CmdHIDsimTAG(c->arg[0], c->arg[1], 1);
645 break;
646 case CMD_HID_CLONE_TAG:
647 CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
648 break;
649 case CMD_IO_DEMOD_FSK:
650 CmdIOdemodFSK(c->arg[0], 0, 0, 1);
651 break;
652 case CMD_IO_CLONE_TAG:
653 CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
654 break;
655 case CMD_EM410X_DEMOD:
656 CmdEM410xdemod(c->arg[0], 0, 0, 1);
657 break;
658 case CMD_EM410X_WRITE_TAG:
659 WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
660 break;
661 case CMD_READ_TI_TYPE:
662 ReadTItag();
663 break;
664 case CMD_WRITE_TI_TYPE:
665 WriteTItag(c->arg[0],c->arg[1],c->arg[2]);
666 break;
667 case CMD_SIMULATE_TAG_125K:
668 SimulateTagLowFrequency(c->arg[0], c->arg[1], 0);
669 //SimulateTagLowFrequencyA(c->arg[0], c->arg[1]);
670 break;
671 case CMD_LF_SIMULATE_BIDIR:
672 SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
673 break;
674 case CMD_INDALA_CLONE_TAG:
675 CopyIndala64toT55x7(c->arg[0], c->arg[1]);
676 break;
677 case CMD_INDALA_CLONE_TAG_L:
678 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]);
679 break;
680 case CMD_T55XX_READ_BLOCK:
681 T55xxReadBlock(c->arg[1], c->arg[2],c->d.asBytes[0]);
682 break;
683 case CMD_T55XX_WRITE_BLOCK:
684 T55xxWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
685 break;
686 case CMD_T55XX_READ_TRACE:
687 T55xxReadTrace();
688 break;
689 case CMD_PCF7931_READ:
690 ReadPCF7931();
691 cmd_send(CMD_ACK,0,0,0,0,0);
692 break;
693 case CMD_EM4X_READ_WORD:
694 EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
695 break;
696 case CMD_EM4X_WRITE_WORD:
697 EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
698 break;
699 #endif
700
701 #ifdef WITH_HITAG
702 case CMD_SNOOP_HITAG: // Eavesdrop Hitag tag, args = type
703 SnoopHitag(c->arg[0]);
704 break;
705 case CMD_SIMULATE_HITAG: // Simulate Hitag tag, args = memory content
706 SimulateHitagTag((bool)c->arg[0],(byte_t*)c->d.asBytes);
707 break;
708 case CMD_READER_HITAG: // Reader for Hitag tags, args = type and function
709 ReaderHitag((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
710 break;
711 #endif
712
713 #ifdef WITH_ISO15693
714 case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
715 AcquireRawAdcSamplesIso15693();
716 break;
717 case CMD_RECORD_RAW_ADC_SAMPLES_ISO_15693:
718 RecordRawAdcSamplesIso15693();
719 break;
720
721 case CMD_ISO_15693_COMMAND:
722 DirectTag15693Command(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
723 break;
724
725 case CMD_ISO_15693_FIND_AFI:
726 BruteforceIso15693Afi(c->arg[0]);
727 break;
728
729 case CMD_ISO_15693_DEBUG:
730 SetDebugIso15693(c->arg[0]);
731 break;
732
733 case CMD_READER_ISO_15693:
734 ReaderIso15693(c->arg[0]);
735 break;
736 case CMD_SIMTAG_ISO_15693:
737 SimTagIso15693(c->arg[0], c->d.asBytes);
738 break;
739 #endif
740
741 #ifdef WITH_LEGICRF
742 case CMD_SIMULATE_TAG_LEGIC_RF:
743 LegicRfSimulate(c->arg[0], c->arg[1], c->arg[2]);
744 break;
745
746 case CMD_WRITER_LEGIC_RF:
747 LegicRfWriter(c->arg[1], c->arg[0]);
748 break;
749
750 case CMD_READER_LEGIC_RF:
751 LegicRfReader(c->arg[0], c->arg[1]);
752 break;
753 #endif
754
755 #ifdef WITH_ISO14443b
756 case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443:
757 AcquireRawAdcSamplesIso14443(c->arg[0]);
758 break;
759 case CMD_READ_SRI512_TAG:
760 ReadSTMemoryIso14443(0x0F);
761 break;
762 case CMD_READ_SRIX4K_TAG:
763 ReadSTMemoryIso14443(0x7F);
764 break;
765 case CMD_SNOOP_ISO_14443:
766 SnoopIso14443();
767 break;
768 case CMD_SIMULATE_TAG_ISO_14443:
769 SimulateIso14443Tag();
770 break;
771 case CMD_ISO_14443B_COMMAND:
772 SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
773 break;
774 #endif
775
776 #ifdef WITH_ISO14443a
777 case CMD_SNOOP_ISO_14443a:
778 SnoopIso14443a(c->arg[0]);
779 break;
780 case CMD_READER_ISO_14443a:
781 ReaderIso14443a(c);
782 break;
783 case CMD_SIMULATE_TAG_ISO_14443a:
784 SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); // ## Simulate iso14443a tag - pass tag type & UID
785 break;
786
787 case CMD_EPA_PACE_COLLECT_NONCE:
788 EPA_PACE_Collect_Nonce(c);
789 break;
790
791 // case CMD_EPA_:
792 // EpaFoo(c);
793 // break;
794
795 case CMD_READER_MIFARE:
796 ReaderMifare(c->arg[0]);
797 break;
798 case CMD_MIFARE_READBL:
799 MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
800 break;
801 case CMD_MIFAREU_READBL:
802 MifareUReadBlock(c->arg[0],c->d.asBytes);
803 break;
804 case CMD_MIFAREUC_AUTH1:
805 MifareUC_Auth1(c->arg[0],c->d.asBytes);
806 break;
807 case CMD_MIFAREUC_AUTH2:
808 MifareUC_Auth2(c->arg[0],c->d.asBytes);
809 break;
810 case CMD_MIFAREU_READCARD:
811 MifareUReadCard(c->arg[0], c->arg[1], c->d.asBytes);
812 break;
813 case CMD_MIFAREUC_READCARD:
814 MifareUReadCard(c->arg[0], c->arg[1], c->d.asBytes);
815 break;
816 case CMD_MIFARE_READSC:
817 MifareReadSector(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
818 break;
819 case CMD_MIFARE_WRITEBL:
820 MifareWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
821 break;
822 case CMD_MIFAREU_WRITEBL_COMPAT:
823 MifareUWriteBlock(c->arg[0], c->d.asBytes);
824 break;
825 case CMD_MIFAREU_WRITEBL:
826 MifareUWriteBlock_Special(c->arg[0], c->d.asBytes);
827 break;
828 case CMD_MIFARE_NESTED:
829 MifareNested(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
830 break;
831 case CMD_MIFARE_CHKKEYS:
832 MifareChkKeys(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
833 break;
834 case CMD_SIMULATE_MIFARE_CARD:
835 Mifare1ksim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
836 break;
837
838 // emulator
839 case CMD_MIFARE_SET_DBGMODE:
840 MifareSetDbgLvl(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
841 break;
842 case CMD_MIFARE_EML_MEMCLR:
843 MifareEMemClr(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
844 break;
845 case CMD_MIFARE_EML_MEMSET:
846 MifareEMemSet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
847 break;
848 case CMD_MIFARE_EML_MEMGET:
849 MifareEMemGet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
850 break;
851 case CMD_MIFARE_EML_CARDLOAD:
852 MifareECardLoad(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
853 break;
854
855 // Work with "magic Chinese" card
856 case CMD_MIFARE_CSETBLOCK:
857 MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
858 break;
859 case CMD_MIFARE_CGETBLOCK:
860 MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
861 break;
862 case CMD_MIFARE_CIDENT:
863 MifareCIdent();
864 break;
865
866 // mifare sniffer
867 case CMD_MIFARE_SNIFFER:
868 SniffMifare(c->arg[0]);
869 break;
870
871 #endif
872
873 #ifdef WITH_ICLASS
874 // Makes use of ISO14443a FPGA Firmware
875 case CMD_SNOOP_ICLASS:
876 SnoopIClass();
877 break;
878 case CMD_SIMULATE_TAG_ICLASS:
879 SimulateIClass(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
880 break;
881 case CMD_READER_ICLASS:
882 ReaderIClass(c->arg[0]);
883 break;
884 case CMD_READER_ICLASS_REPLAY:
885 ReaderIClass_Replay(c->arg[0], c->d.asBytes);
886 break;
887 #endif
888
889 case CMD_SIMULATE_TAG_HF_LISTEN:
890 SimulateTagHfListen();
891 break;
892
893 case CMD_BUFF_CLEAR:
894 BigBuf_Clear();
895 break;
896
897 case CMD_MEASURE_ANTENNA_TUNING:
898 MeasureAntennaTuning();
899 break;
900
901 case CMD_MEASURE_ANTENNA_TUNING_HF:
902 MeasureAntennaTuningHf();
903 break;
904
905 case CMD_LISTEN_READER_FIELD:
906 ListenReaderField(c->arg[0]);
907 break;
908
909 case CMD_FPGA_MAJOR_MODE_OFF: // ## FPGA Control
910 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
911 SpinDelay(200);
912 LED_D_OFF(); // LED D indicates field ON or OFF
913 break;
914
915 case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
916
917 LED_B_ON();
918 uint8_t *BigBuf = BigBuf_get_addr();
919 for(size_t i=0; i<c->arg[1]; i += USB_CMD_DATA_SIZE) {
920 size_t len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
921 cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,traceLen,BigBuf+c->arg[0]+i,len);
922 }
923 // Trigger a finish downloading signal with an ACK frame
924 cmd_send(CMD_ACK,0,0,traceLen,0,0);
925 LED_B_OFF();
926 break;
927
928 case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
929 uint8_t *b = BigBuf_get_addr();
930 memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
931 cmd_send(CMD_ACK,0,0,0,0,0);
932 break;
933 }
934 case CMD_READ_MEM:
935 ReadMem(c->arg[0]);
936 break;
937
938 case CMD_SET_LF_DIVISOR:
939 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
940 FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
941 break;
942
943 case CMD_SET_ADC_MUX:
944 switch(c->arg[0]) {
945 case 0: SetAdcMuxFor(GPIO_MUXSEL_LOPKD); break;
946 case 1: SetAdcMuxFor(GPIO_MUXSEL_LORAW); break;
947 case 2: SetAdcMuxFor(GPIO_MUXSEL_HIPKD); break;
948 case 3: SetAdcMuxFor(GPIO_MUXSEL_HIRAW); break;
949 }
950 break;
951
952 case CMD_VERSION:
953 SendVersion();
954 break;
955
956 #ifdef WITH_LCD
957 case CMD_LCD_RESET:
958 LCDReset();
959 break;
960 case CMD_LCD:
961 LCDSend(c->arg[0]);
962 break;
963 #endif
964 case CMD_SETUP_WRITE:
965 case CMD_FINISH_WRITE:
966 case CMD_HARDWARE_RESET:
967 usb_disable();
968 SpinDelay(1000);
969 SpinDelay(1000);
970 AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
971 for(;;) {
972 // We're going to reset, and the bootrom will take control.
973 }
974 break;
975
976 case CMD_START_FLASH:
977 if(common_area.flags.bootrom_present) {
978 common_area.command = COMMON_AREA_COMMAND_ENTER_FLASH_MODE;
979 }
980 usb_disable();
981 AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
982 for(;;);
983 break;
984
985 case CMD_DEVICE_INFO: {
986 uint32_t dev_info = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
987 if(common_area.flags.bootrom_present) dev_info |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;
988 cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);
989 break;
990 }
991 default:
992 Dbprintf("%s: 0x%04x","unknown command:",c->cmd);
993 break;
994 }
995 }
996
997 void __attribute__((noreturn)) AppMain(void)
998 {
999 SpinDelay(100);
1000
1001 if(common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
1002 /* Initialize common area */
1003 memset(&common_area, 0, sizeof(common_area));
1004 common_area.magic = COMMON_AREA_MAGIC;
1005 common_area.version = 1;
1006 }
1007 common_area.flags.osimage_present = 1;
1008
1009 LED_D_OFF();
1010 LED_C_OFF();
1011 LED_B_OFF();
1012 LED_A_OFF();
1013
1014 // Init USB device
1015 usb_enable();
1016
1017 // The FPGA gets its clock from us from PCK0 output, so set that up.
1018 AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;
1019 AT91C_BASE_PIOA->PIO_PDR = GPIO_PCK0;
1020 AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_PCK0;
1021 // PCK0 is PLL clock / 4 = 96Mhz / 4 = 24Mhz
1022 AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK |
1023 AT91C_PMC_PRES_CLK_4;
1024 AT91C_BASE_PIOA->PIO_OER = GPIO_PCK0;
1025
1026 // Reset SPI
1027 AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
1028 // Reset SSC
1029 AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
1030
1031 // Load the FPGA image, which we have stored in our flash.
1032 // (the HF version by default)
1033 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
1034
1035 StartTickCount();
1036
1037 #ifdef WITH_LCD
1038 LCDInit();
1039 #endif
1040
1041 byte_t rx[sizeof(UsbCommand)];
1042 size_t rx_len;
1043
1044 for(;;) {
1045 if (usb_poll()) {
1046 rx_len = usb_read(rx,sizeof(UsbCommand));
1047 if (rx_len) {
1048 UsbPacketReceived(rx,rx_len);
1049 }
1050 }
1051 WDT_HIT();
1052
1053 #ifdef WITH_LF
1054 if (BUTTON_HELD(1000) > 0)
1055 SamyRun();
1056 #endif
1057 }
1058 }
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