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Merge pull request #131 from holiman/master
[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 "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 ReadMem(int addr)
254 {
255 const uint8_t *data = ((uint8_t *)addr);
256
257 Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
258 addr, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
259 }
260
261 /* osimage version information is linked in */
262 extern struct version_information version_information;
263 /* bootrom version information is pointed to from _bootphase1_version_pointer */
264 extern char *_bootphase1_version_pointer, _flash_start, _flash_end, _bootrom_start, _bootrom_end, __data_src_start__;
265 void SendVersion(void)
266 {
267 char temp[USB_CMD_DATA_SIZE]; /* Limited data payload in USB packets */
268 char VersionString[USB_CMD_DATA_SIZE] = { '\0' };
269
270 /* Try to find the bootrom version information. Expect to find a pointer at
271 * symbol _bootphase1_version_pointer, perform slight sanity checks on the
272 * pointer, then use it.
273 */
274 char *bootrom_version = *(char**)&_bootphase1_version_pointer;
275 if( bootrom_version < &_flash_start || bootrom_version >= &_flash_end ) {
276 strcat(VersionString, "bootrom version information appears invalid\n");
277 } else {
278 FormatVersionInformation(temp, sizeof(temp), "bootrom: ", bootrom_version);
279 strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
280 }
281
282 FormatVersionInformation(temp, sizeof(temp), "os: ", &version_information);
283 strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
284
285 FpgaGatherVersion(FPGA_BITSTREAM_LF, temp, sizeof(temp));
286 strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
287 FpgaGatherVersion(FPGA_BITSTREAM_HF, temp, sizeof(temp));
288 strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
289
290 // Send Chip ID and used flash memory
291 uint32_t text_and_rodata_section_size = (uint32_t)&__data_src_start__ - (uint32_t)&_flash_start;
292 uint32_t compressed_data_section_size = common_area.arg1;
293 cmd_send(CMD_ACK, *(AT91C_DBGU_CIDR), text_and_rodata_section_size + compressed_data_section_size, 0, VersionString, strlen(VersionString));
294 }
295
296 #ifdef WITH_LF
297 // samy's sniff and repeat routine
298 void SamyRun()
299 {
300 DbpString("Stand-alone mode! No PC necessary.");
301 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
302
303 // 3 possible options? no just 2 for now
304 #define OPTS 2
305
306 int high[OPTS], low[OPTS];
307
308 // Oooh pretty -- notify user we're in elite samy mode now
309 LED(LED_RED, 200);
310 LED(LED_ORANGE, 200);
311 LED(LED_GREEN, 200);
312 LED(LED_ORANGE, 200);
313 LED(LED_RED, 200);
314 LED(LED_ORANGE, 200);
315 LED(LED_GREEN, 200);
316 LED(LED_ORANGE, 200);
317 LED(LED_RED, 200);
318
319 int selected = 0;
320 int playing = 0;
321 int cardRead = 0;
322
323 // Turn on selected LED
324 LED(selected + 1, 0);
325
326 for (;;)
327 {
328 usb_poll();
329 WDT_HIT();
330
331 // Was our button held down or pressed?
332 int button_pressed = BUTTON_HELD(1000);
333 SpinDelay(300);
334
335 // Button was held for a second, begin recording
336 if (button_pressed > 0 && cardRead == 0)
337 {
338 LEDsoff();
339 LED(selected + 1, 0);
340 LED(LED_RED2, 0);
341
342 // record
343 DbpString("Starting recording");
344
345 // wait for button to be released
346 while(BUTTON_PRESS())
347 WDT_HIT();
348
349 /* need this delay to prevent catching some weird data */
350 SpinDelay(500);
351
352 CmdHIDdemodFSK(1, &high[selected], &low[selected], 0);
353 Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]);
354
355 LEDsoff();
356 LED(selected + 1, 0);
357 // Finished recording
358
359 // If we were previously playing, set playing off
360 // so next button push begins playing what we recorded
361 playing = 0;
362
363 cardRead = 1;
364
365 }
366
367 else if (button_pressed > 0 && cardRead == 1)
368 {
369 LEDsoff();
370 LED(selected + 1, 0);
371 LED(LED_ORANGE, 0);
372
373 // record
374 Dbprintf("Cloning %x %x %x", selected, high[selected], low[selected]);
375
376 // wait for button to be released
377 while(BUTTON_PRESS())
378 WDT_HIT();
379
380 /* need this delay to prevent catching some weird data */
381 SpinDelay(500);
382
383 CopyHIDtoT55x7(high[selected], low[selected], 0, 0);
384 Dbprintf("Cloned %x %x %x", selected, high[selected], low[selected]);
385
386 LEDsoff();
387 LED(selected + 1, 0);
388 // Finished recording
389
390 // If we were previously playing, set playing off
391 // so next button push begins playing what we recorded
392 playing = 0;
393
394 cardRead = 0;
395
396 }
397
398 // Change where to record (or begin playing)
399 else if (button_pressed)
400 {
401 // Next option if we were previously playing
402 if (playing)
403 selected = (selected + 1) % OPTS;
404 playing = !playing;
405
406 LEDsoff();
407 LED(selected + 1, 0);
408
409 // Begin transmitting
410 if (playing)
411 {
412 LED(LED_GREEN, 0);
413 DbpString("Playing");
414 // wait for button to be released
415 while(BUTTON_PRESS())
416 WDT_HIT();
417 Dbprintf("%x %x %x", selected, high[selected], low[selected]);
418 CmdHIDsimTAG(high[selected], low[selected], 0);
419 DbpString("Done playing");
420 if (BUTTON_HELD(1000) > 0)
421 {
422 DbpString("Exiting");
423 LEDsoff();
424 return;
425 }
426
427 /* We pressed a button so ignore it here with a delay */
428 SpinDelay(300);
429
430 // when done, we're done playing, move to next option
431 selected = (selected + 1) % OPTS;
432 playing = !playing;
433 LEDsoff();
434 LED(selected + 1, 0);
435 }
436 else
437 while(BUTTON_PRESS())
438 WDT_HIT();
439 }
440 }
441 }
442 #endif
443
444 /*
445 OBJECTIVE
446 Listen and detect an external reader. Determine the best location
447 for the antenna.
448
449 INSTRUCTIONS:
450 Inside the ListenReaderField() function, there is two mode.
451 By default, when you call the function, you will enter mode 1.
452 If you press the PM3 button one time, you will enter mode 2.
453 If you press the PM3 button a second time, you will exit the function.
454
455 DESCRIPTION OF MODE 1:
456 This mode just listens for an external reader field and lights up green
457 for HF and/or red for LF. This is the original mode of the detectreader
458 function.
459
460 DESCRIPTION OF MODE 2:
461 This mode will visually represent, using the LEDs, the actual strength of the
462 current compared to the maximum current detected. Basically, once you know
463 what kind of external reader is present, it will help you spot the best location to place
464 your antenna. You will probably not get some good results if there is a LF and a HF reader
465 at the same place! :-)
466
467 LIGHT SCHEME USED:
468 */
469 static const char LIGHT_SCHEME[] = {
470 0x0, /* ---- | No field detected */
471 0x1, /* X--- | 14% of maximum current detected */
472 0x2, /* -X-- | 29% of maximum current detected */
473 0x4, /* --X- | 43% of maximum current detected */
474 0x8, /* ---X | 57% of maximum current detected */
475 0xC, /* --XX | 71% of maximum current detected */
476 0xE, /* -XXX | 86% of maximum current detected */
477 0xF, /* XXXX | 100% of maximum current detected */
478 };
479 static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]);
480
481 void ListenReaderField(int limit)
482 {
483 int lf_av, lf_av_new, lf_baseline= 0, lf_max;
484 int hf_av, hf_av_new, hf_baseline= 0, hf_max;
485 int mode=1, display_val, display_max, i;
486
487 #define LF_ONLY 1
488 #define HF_ONLY 2
489 #define REPORT_CHANGE 10 // report new values only if they have changed at least by REPORT_CHANGE
490
491
492 // switch off FPGA - we don't want to measure our own signal
493 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
494 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
495
496 LEDsoff();
497
498 lf_av = lf_max = AvgAdc(ADC_CHAN_LF);
499
500 if(limit != HF_ONLY) {
501 Dbprintf("LF 125/134kHz Baseline: %dmV", (MAX_ADC_LF_VOLTAGE * lf_av) >> 10);
502 lf_baseline = lf_av;
503 }
504
505 hf_av = hf_max = AvgAdc(ADC_CHAN_HF);
506
507 if (limit != LF_ONLY) {
508 Dbprintf("HF 13.56MHz Baseline: %dmV", (MAX_ADC_HF_VOLTAGE * hf_av) >> 10);
509 hf_baseline = hf_av;
510 }
511
512 for(;;) {
513 if (BUTTON_PRESS()) {
514 SpinDelay(500);
515 switch (mode) {
516 case 1:
517 mode=2;
518 DbpString("Signal Strength Mode");
519 break;
520 case 2:
521 default:
522 DbpString("Stopped");
523 LEDsoff();
524 return;
525 break;
526 }
527 }
528 WDT_HIT();
529
530 if (limit != HF_ONLY) {
531 if(mode == 1) {
532 if (abs(lf_av - lf_baseline) > REPORT_CHANGE)
533 LED_D_ON();
534 else
535 LED_D_OFF();
536 }
537
538 lf_av_new = AvgAdc(ADC_CHAN_LF);
539 // see if there's a significant change
540 if(abs(lf_av - lf_av_new) > REPORT_CHANGE) {
541 Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10);
542 lf_av = lf_av_new;
543 if (lf_av > lf_max)
544 lf_max = lf_av;
545 }
546 }
547
548 if (limit != LF_ONLY) {
549 if (mode == 1){
550 if (abs(hf_av - hf_baseline) > REPORT_CHANGE)
551 LED_B_ON();
552 else
553 LED_B_OFF();
554 }
555
556 hf_av_new = AvgAdc(ADC_CHAN_HF);
557 // see if there's a significant change
558 if(abs(hf_av - hf_av_new) > REPORT_CHANGE) {
559 Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10);
560 hf_av = hf_av_new;
561 if (hf_av > hf_max)
562 hf_max = hf_av;
563 }
564 }
565
566 if(mode == 2) {
567 if (limit == LF_ONLY) {
568 display_val = lf_av;
569 display_max = lf_max;
570 } else if (limit == HF_ONLY) {
571 display_val = hf_av;
572 display_max = hf_max;
573 } else { /* Pick one at random */
574 if( (hf_max - hf_baseline) > (lf_max - lf_baseline) ) {
575 display_val = hf_av;
576 display_max = hf_max;
577 } else {
578 display_val = lf_av;
579 display_max = lf_max;
580 }
581 }
582 for (i=0; i<LIGHT_LEN; i++) {
583 if (display_val >= ((display_max/LIGHT_LEN)*i) && display_val <= ((display_max/LIGHT_LEN)*(i+1))) {
584 if (LIGHT_SCHEME[i] & 0x1) LED_C_ON(); else LED_C_OFF();
585 if (LIGHT_SCHEME[i] & 0x2) LED_A_ON(); else LED_A_OFF();
586 if (LIGHT_SCHEME[i] & 0x4) LED_B_ON(); else LED_B_OFF();
587 if (LIGHT_SCHEME[i] & 0x8) LED_D_ON(); else LED_D_OFF();
588 break;
589 }
590 }
591 }
592 }
593 }
594
595 void UsbPacketReceived(uint8_t *packet, int len)
596 {
597 UsbCommand *c = (UsbCommand *)packet;
598
599 // 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]);
600
601 switch(c->cmd) {
602 #ifdef WITH_LF
603 case CMD_SET_LF_SAMPLING_CONFIG:
604 setSamplingConfig((sample_config *) c->d.asBytes);
605 break;
606 case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K:
607 cmd_send(CMD_ACK,SampleLF(c->arg[0]),0,0,0,0);
608 break;
609 case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
610 ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
611 break;
612 case CMD_LF_SNOOP_RAW_ADC_SAMPLES:
613 cmd_send(CMD_ACK,SnoopLF(),0,0,0,0);
614 break;
615 case CMD_HID_DEMOD_FSK:
616 CmdHIDdemodFSK(c->arg[0], 0, 0, 1);
617 break;
618 case CMD_HID_SIM_TAG:
619 CmdHIDsimTAG(c->arg[0], c->arg[1], 1);
620 break;
621 case CMD_FSK_SIM_TAG:
622 CmdFSKsimTAG(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
623 break;
624 case CMD_ASK_SIM_TAG:
625 CmdASKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
626 break;
627 case CMD_PSK_SIM_TAG:
628 CmdPSKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
629 break;
630 case CMD_HID_CLONE_TAG:
631 CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
632 break;
633 case CMD_IO_DEMOD_FSK:
634 CmdIOdemodFSK(c->arg[0], 0, 0, 1);
635 break;
636 case CMD_IO_CLONE_TAG:
637 CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
638 break;
639 case CMD_EM410X_DEMOD:
640 CmdEM410xdemod(c->arg[0], 0, 0, 1);
641 break;
642 case CMD_EM410X_WRITE_TAG:
643 WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
644 break;
645 case CMD_READ_TI_TYPE:
646 ReadTItag();
647 break;
648 case CMD_WRITE_TI_TYPE:
649 WriteTItag(c->arg[0],c->arg[1],c->arg[2]);
650 break;
651 case CMD_SIMULATE_TAG_125K:
652 LED_A_ON();
653 SimulateTagLowFrequency(c->arg[0], c->arg[1], 1);
654 LED_A_OFF();
655 break;
656 case CMD_LF_SIMULATE_BIDIR:
657 SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
658 break;
659 case CMD_INDALA_CLONE_TAG:
660 CopyIndala64toT55x7(c->arg[0], c->arg[1]);
661 break;
662 case CMD_INDALA_CLONE_TAG_L:
663 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]);
664 break;
665 case CMD_T55XX_READ_BLOCK:
666 T55xxReadBlock(c->arg[1], c->arg[2],c->d.asBytes[0]);
667 break;
668 case CMD_T55XX_WRITE_BLOCK:
669 T55xxWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
670 cmd_send(CMD_ACK,0,0,0,0,0);
671 break;
672 case CMD_T55XX_READ_TRACE:
673 T55xxReadTrace();
674 break;
675 case CMD_PCF7931_READ:
676 ReadPCF7931();
677 cmd_send(CMD_ACK,0,0,0,0,0);
678 break;
679 case CMD_EM4X_READ_WORD:
680 EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
681 break;
682 case CMD_EM4X_WRITE_WORD:
683 EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
684 break;
685 case CMD_AWID_DEMOD_FSK: // Set realtime AWID demodulation
686 CmdAWIDdemodFSK(c->arg[0], 0, 0, 1);
687 break;
688 #endif
689
690 #ifdef WITH_HITAG
691 case CMD_SNOOP_HITAG: // Eavesdrop Hitag tag, args = type
692 SnoopHitag(c->arg[0]);
693 break;
694 case CMD_SIMULATE_HITAG: // Simulate Hitag tag, args = memory content
695 SimulateHitagTag((bool)c->arg[0],(byte_t*)c->d.asBytes);
696 break;
697 case CMD_READER_HITAG: // Reader for Hitag tags, args = type and function
698 ReaderHitag((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
699 break;
700 #endif
701
702 #ifdef WITH_ISO15693
703 case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
704 AcquireRawAdcSamplesIso15693();
705 break;
706 case CMD_RECORD_RAW_ADC_SAMPLES_ISO_15693:
707 RecordRawAdcSamplesIso15693();
708 break;
709
710 case CMD_ISO_15693_COMMAND:
711 DirectTag15693Command(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
712 break;
713
714 case CMD_ISO_15693_FIND_AFI:
715 BruteforceIso15693Afi(c->arg[0]);
716 break;
717
718 case CMD_ISO_15693_DEBUG:
719 SetDebugIso15693(c->arg[0]);
720 break;
721
722 case CMD_READER_ISO_15693:
723 ReaderIso15693(c->arg[0]);
724 break;
725 case CMD_SIMTAG_ISO_15693:
726 SimTagIso15693(c->arg[0], c->d.asBytes);
727 break;
728 #endif
729
730 #ifdef WITH_LEGICRF
731 case CMD_SIMULATE_TAG_LEGIC_RF:
732 LegicRfSimulate(c->arg[0], c->arg[1], c->arg[2]);
733 break;
734
735 case CMD_WRITER_LEGIC_RF:
736 LegicRfWriter(c->arg[1], c->arg[0]);
737 break;
738
739 case CMD_READER_LEGIC_RF:
740 LegicRfReader(c->arg[0], c->arg[1]);
741 break;
742 #endif
743
744 #ifdef WITH_ISO14443b
745 case CMD_READ_SRI512_TAG:
746 ReadSTMemoryIso14443b(0x0F);
747 break;
748 case CMD_READ_SRIX4K_TAG:
749 ReadSTMemoryIso14443b(0x7F);
750 break;
751 case CMD_SNOOP_ISO_14443B:
752 SnoopIso14443b();
753 break;
754 case CMD_SIMULATE_TAG_ISO_14443B:
755 SimulateIso14443bTag();
756 break;
757 case CMD_ISO_14443B_COMMAND:
758 SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
759 break;
760 #endif
761
762 #ifdef WITH_ISO14443a
763 case CMD_SNOOP_ISO_14443a:
764 SnoopIso14443a(c->arg[0]);
765 break;
766 case CMD_READER_ISO_14443a:
767 ReaderIso14443a(c);
768 break;
769 case CMD_SIMULATE_TAG_ISO_14443a:
770 SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); // ## Simulate iso14443a tag - pass tag type & UID
771 break;
772
773 case CMD_EPA_PACE_COLLECT_NONCE:
774 EPA_PACE_Collect_Nonce(c);
775 break;
776 case CMD_EPA_PACE_REPLAY:
777 EPA_PACE_Replay(c);
778 break;
779
780 case CMD_READER_MIFARE:
781 ReaderMifare(c->arg[0]);
782 break;
783 case CMD_MIFARE_READBL:
784 MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
785 break;
786 case CMD_MIFAREU_READBL:
787 MifareUReadBlock(c->arg[0],c->arg[1], c->d.asBytes);
788 break;
789 case CMD_MIFAREUC_AUTH:
790 MifareUC_Auth(c->arg[0],c->d.asBytes);
791 break;
792 case CMD_MIFAREU_READCARD:
793 MifareUReadCard(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
794 break;
795 case CMD_MIFAREUC_SETPWD:
796 MifareUSetPwd(c->arg[0], c->d.asBytes);
797 break;
798 case CMD_MIFARE_READSC:
799 MifareReadSector(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
800 break;
801 case CMD_MIFARE_WRITEBL:
802 MifareWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
803 break;
804 //case CMD_MIFAREU_WRITEBL_COMPAT:
805 //MifareUWriteBlockCompat(c->arg[0], c->d.asBytes);
806 //break;
807 case CMD_MIFAREU_WRITEBL:
808 MifareUWriteBlock(c->arg[0], c->arg[1], c->d.asBytes);
809 break;
810 case CMD_MIFARE_NESTED:
811 MifareNested(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
812 break;
813 case CMD_MIFARE_CHKKEYS:
814 MifareChkKeys(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
815 break;
816 case CMD_SIMULATE_MIFARE_CARD:
817 Mifare1ksim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
818 break;
819
820 // emulator
821 case CMD_MIFARE_SET_DBGMODE:
822 MifareSetDbgLvl(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
823 break;
824 case CMD_MIFARE_EML_MEMCLR:
825 MifareEMemClr(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
826 break;
827 case CMD_MIFARE_EML_MEMSET:
828 MifareEMemSet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
829 break;
830 case CMD_MIFARE_EML_MEMGET:
831 MifareEMemGet(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
832 break;
833 case CMD_MIFARE_EML_CARDLOAD:
834 MifareECardLoad(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
835 break;
836
837 // Work with "magic Chinese" card
838 case CMD_MIFARE_CSETBLOCK:
839 MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
840 break;
841 case CMD_MIFARE_CGETBLOCK:
842 MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
843 break;
844 case CMD_MIFARE_CIDENT:
845 MifareCIdent();
846 break;
847
848 // mifare sniffer
849 case CMD_MIFARE_SNIFFER:
850 SniffMifare(c->arg[0]);
851 break;
852
853 #endif
854
855 #ifdef WITH_ICLASS
856 // Makes use of ISO14443a FPGA Firmware
857 case CMD_SNOOP_ICLASS:
858 SnoopIClass();
859 break;
860 case CMD_SIMULATE_TAG_ICLASS:
861 SimulateIClass(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
862 break;
863 case CMD_READER_ICLASS:
864 ReaderIClass(c->arg[0]);
865 break;
866 case CMD_READER_ICLASS_REPLAY:
867 ReaderIClass_Replay(c->arg[0], c->d.asBytes);
868 break;
869 case CMD_ICLASS_EML_MEMSET:
870 emlSet(c->d.asBytes,c->arg[0], c->arg[1]);
871 break;
872 #endif
873
874 case CMD_BUFF_CLEAR:
875 BigBuf_Clear();
876 break;
877
878 case CMD_MEASURE_ANTENNA_TUNING:
879 MeasureAntennaTuning();
880 break;
881
882 case CMD_MEASURE_ANTENNA_TUNING_HF:
883 MeasureAntennaTuningHf();
884 break;
885
886 case CMD_LISTEN_READER_FIELD:
887 ListenReaderField(c->arg[0]);
888 break;
889
890 case CMD_FPGA_MAJOR_MODE_OFF: // ## FPGA Control
891 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
892 SpinDelay(200);
893 LED_D_OFF(); // LED D indicates field ON or OFF
894 break;
895
896 case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
897
898 LED_B_ON();
899 uint8_t *BigBuf = BigBuf_get_addr();
900 for(size_t i=0; i<c->arg[1]; i += USB_CMD_DATA_SIZE) {
901 size_t len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
902 cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,BigBuf_get_traceLen(),BigBuf+c->arg[0]+i,len);
903 }
904 // Trigger a finish downloading signal with an ACK frame
905 cmd_send(CMD_ACK,1,0,BigBuf_get_traceLen(),getSamplingConfig(),sizeof(sample_config));
906 LED_B_OFF();
907 break;
908
909 case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
910 uint8_t *b = BigBuf_get_addr();
911 memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
912 cmd_send(CMD_ACK,0,0,0,0,0);
913 break;
914 }
915 case CMD_READ_MEM:
916 ReadMem(c->arg[0]);
917 break;
918
919 case CMD_SET_LF_DIVISOR:
920 FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
921 FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
922 break;
923
924 case CMD_SET_ADC_MUX:
925 switch(c->arg[0]) {
926 case 0: SetAdcMuxFor(GPIO_MUXSEL_LOPKD); break;
927 case 1: SetAdcMuxFor(GPIO_MUXSEL_LORAW); break;
928 case 2: SetAdcMuxFor(GPIO_MUXSEL_HIPKD); break;
929 case 3: SetAdcMuxFor(GPIO_MUXSEL_HIRAW); break;
930 }
931 break;
932
933 case CMD_VERSION:
934 SendVersion();
935 break;
936
937 #ifdef WITH_LCD
938 case CMD_LCD_RESET:
939 LCDReset();
940 break;
941 case CMD_LCD:
942 LCDSend(c->arg[0]);
943 break;
944 #endif
945 case CMD_SETUP_WRITE:
946 case CMD_FINISH_WRITE:
947 case CMD_HARDWARE_RESET:
948 usb_disable();
949 SpinDelay(1000);
950 SpinDelay(1000);
951 AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
952 for(;;) {
953 // We're going to reset, and the bootrom will take control.
954 }
955 break;
956
957 case CMD_START_FLASH:
958 if(common_area.flags.bootrom_present) {
959 common_area.command = COMMON_AREA_COMMAND_ENTER_FLASH_MODE;
960 }
961 usb_disable();
962 AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
963 for(;;);
964 break;
965
966 case CMD_DEVICE_INFO: {
967 uint32_t dev_info = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
968 if(common_area.flags.bootrom_present) dev_info |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;
969 cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);
970 break;
971 }
972 default:
973 Dbprintf("%s: 0x%04x","unknown command:",c->cmd);
974 break;
975 }
976 }
977
978 void __attribute__((noreturn)) AppMain(void)
979 {
980 SpinDelay(100);
981 clear_trace();
982 if(common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
983 /* Initialize common area */
984 memset(&common_area, 0, sizeof(common_area));
985 common_area.magic = COMMON_AREA_MAGIC;
986 common_area.version = 1;
987 }
988 common_area.flags.osimage_present = 1;
989
990 LED_D_OFF();
991 LED_C_OFF();
992 LED_B_OFF();
993 LED_A_OFF();
994
995 // Init USB device
996 usb_enable();
997
998 // The FPGA gets its clock from us from PCK0 output, so set that up.
999 AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;
1000 AT91C_BASE_PIOA->PIO_PDR = GPIO_PCK0;
1001 AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_PCK0;
1002 // PCK0 is PLL clock / 4 = 96Mhz / 4 = 24Mhz
1003 AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK |
1004 AT91C_PMC_PRES_CLK_4;
1005 AT91C_BASE_PIOA->PIO_OER = GPIO_PCK0;
1006
1007 // Reset SPI
1008 AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
1009 // Reset SSC
1010 AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
1011
1012 // Load the FPGA image, which we have stored in our flash.
1013 // (the HF version by default)
1014 FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
1015
1016 StartTickCount();
1017
1018 #ifdef WITH_LCD
1019 LCDInit();
1020 #endif
1021
1022 byte_t rx[sizeof(UsbCommand)];
1023 size_t rx_len;
1024
1025 for(;;) {
1026 if (usb_poll()) {
1027 rx_len = usb_read(rx,sizeof(UsbCommand));
1028 if (rx_len) {
1029 UsbPacketReceived(rx,rx_len);
1030 }
1031 }
1032 WDT_HIT();
1033
1034 #ifdef WITH_LF
1035 if (BUTTON_HELD(1000) > 0)
1036 SamyRun();
1037 #endif
1038 }
1039 }
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