X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/72c4af087f2950bb445ae0c9c439724efe9a0d0e..15c4dc5ace24e6081d1597b011148f156cdd599e:/armsrc/appmain.c diff --git a/armsrc/appmain.c b/armsrc/appmain.c index b517fa6c..e5415010 100644 --- a/armsrc/appmain.c +++ b/armsrc/appmain.c @@ -1,883 +1,883 @@ -//----------------------------------------------------------------------------- -// 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 (##) -//----------------------------------------------------------------------------- - -#include -#include "apps.h" -#include "legicrf.h" -#ifdef WITH_LCD -#include "fonts.h" -#include "LCD.h" -#endif - -#define va_list __builtin_va_list -#define va_start __builtin_va_start -#define va_arg __builtin_va_arg -#define va_end __builtin_va_end -int kvsprintf(char const *fmt, void *arg, int radix, va_list ap); - - -#define abs(x) ( ((x)<0) ? -(x) : (x) ) - -//============================================================================= -// A buffer where we can queue things up to be sent through the FPGA, for -// any purpose (fake tag, as reader, whatever). We go MSB first, since that -// is the order in which they go out on the wire. -//============================================================================= - -BYTE ToSend[512]; -int ToSendMax; -static int ToSendBit; -struct common_area common_area __attribute__((section(".commonarea"))); - -void BufferClear(void) -{ - memset(BigBuf,0,sizeof(BigBuf)); - Dbprintf("Buffer cleared (%i bytes)",sizeof(BigBuf)); -} - -void ToSendReset(void) -{ - ToSendMax = -1; - ToSendBit = 8; -} - -void ToSendStuffBit(int b) -{ - if(ToSendBit >= 8) { - ToSendMax++; - ToSend[ToSendMax] = 0; - ToSendBit = 0; - } - - if(b) { - ToSend[ToSendMax] |= (1 << (7 - ToSendBit)); - } - - ToSendBit++; - - if(ToSendBit >= sizeof(ToSend)) { - ToSendBit = 0; - DbpString("ToSendStuffBit overflowed!"); - } -} - -//============================================================================= -// Debug print functions, to go out over USB, to the usual PC-side client. -//============================================================================= - -void DbpString(char *str) -{ - /* this holds up stuff unless we're connected to usb */ - if (!UsbConnected()) - return; - - UsbCommand c; - c.cmd = CMD_DEBUG_PRINT_STRING; - 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)); - // 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 */ - if (!UsbConnected()) - return; - - UsbCommand c; - c.cmd = CMD_DEBUG_PRINT_INTEGERS; - c.arg[0] = x1; - c.arg[1] = x2; - c.arg[2] = x3; - - UsbSendPacket((BYTE *)&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); -} - -//----------------------------------------------------------------------------- -// Read an ADC channel and block till it completes, then return the result -// in ADC units (0 to 1023). Also a routine to average 32 samples and -// return that. -//----------------------------------------------------------------------------- -static int ReadAdc(int ch) -{ - DWORD d; - - 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); - AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch); - - AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START; - while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) - ; - d = AT91C_BASE_ADC->ADC_CDR[ch]; - - return d; -} - -static int AvgAdc(int ch) -{ - int i; - int a = 0; - - for(i = 0; i < 32; i++) { - a += ReadAdc(ch); - } - - return (a + 15) >> 5; -} - -void MeasureAntennaTuning(void) -{ - BYTE *dest = (BYTE *)BigBuf; - int i, ptr = 0, adcval = 0, peak = 0, peakv = 0, peakf = 0;; - int vLf125 = 0, vLf134 = 0, vHf = 0; // in mV - - UsbCommand c; - - DbpString("Measuring antenna characteristics, please wait."); - memset(BigBuf,0,sizeof(BigBuf)); - -/* - * Sweeps the useful LF range of the proxmark from - * 46.8kHz (divisor=255) to 600kHz (divisor=19) and - * read the voltage in the antenna, the result left - * in the buffer is a graph which should clearly show - * the resonating frequency of your LF antenna - * ( hopefully around 95 if it is tuned to 125kHz!) - */ - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - for (i=255; i>19; i--) { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i); - SpinDelay(20); - // Vref = 3.3V, and a 10000:240 voltage divider on the input - // can measure voltages up to 137500 mV - adcval = ((137500 * AvgAdc(ADC_CHAN_LF)) >> 10); - if (i==95) vLf125 = adcval; // voltage at 125Khz - if (i==89) vLf134 = adcval; // voltage at 134Khz - - dest[i] = adcval>>8; // scale int to fit in byte for graphing purposes - if(dest[i] > peak) { - peakv = adcval; - peak = dest[i]; - peakf = i; - ptr = i; - } - } - - // 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; - - c.cmd = CMD_MEASURED_ANTENNA_TUNING; - c.arg[0] = (vLf125 << 0) | (vLf134 << 16); - c.arg[1] = vHf; - c.arg[2] = peakf | (peakv << 16); - UsbSendPacket((BYTE *)&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; - int n = sizeof(BigBuf); - BYTE v = 0; - int i; - int p = 0; - - // We're using this mode just so that I can test it out; the simulated - // tag mode would work just as well and be simpler. - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_848_KHZ | FPGA_HF_READER_RX_XCORR_SNOOP); - - // We need to listen to the high-frequency, peak-detected path. - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - - FpgaSetupSsc(); - - i = 0; - for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { - AT91C_BASE_SSC->SSC_THR = 0xff; - } - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - BYTE r = (BYTE)AT91C_BASE_SSC->SSC_RHR; - - v <<= 1; - if(r & 1) { - v |= 1; - } - p++; - - if(p >= 8) { - dest[i] = v; - v = 0; - p = 0; - i++; - - if(i >= n) { - break; - } - } - } - } - DbpString("simulate tag (now type bitsamples)"); -} - -void ReadMem(int addr) -{ - const BYTE *data = ((BYTE *)addr); - - 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; -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 - * symbol _bootphase1_version_pointer, perform slight sanity checks on the - * pointer, then use it. - */ - 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() -{ - DbpString("Stand-alone mode! No PC necessary."); - - // 3 possible options? no just 2 for now -#define OPTS 2 - - int high[OPTS], low[OPTS]; - - // Oooh pretty -- notify user we're in elite samy mode now - LED(LED_RED, 200); - LED(LED_ORANGE, 200); - LED(LED_GREEN, 200); - LED(LED_ORANGE, 200); - LED(LED_RED, 200); - LED(LED_ORANGE, 200); - LED(LED_GREEN, 200); - LED(LED_ORANGE, 200); - LED(LED_RED, 200); - - int selected = 0; - int playing = 0; - - // Turn on selected LED - LED(selected + 1, 0); - - for (;;) - { - UsbPoll(FALSE); - WDT_HIT(); - - // Was our button held down or pressed? - int button_pressed = BUTTON_HELD(1000); - SpinDelay(300); - - // Button was held for a second, begin recording - if (button_pressed > 0) - { - LEDsoff(); - LED(selected + 1, 0); - LED(LED_RED2, 0); - - // record - DbpString("Starting recording"); - - // wait for button to be released - while(BUTTON_PRESS()) - WDT_HIT(); - - /* need this delay to prevent catching some weird data */ - SpinDelay(500); - - CmdHIDdemodFSK(1, &high[selected], &low[selected], 0); - Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]); - - LEDsoff(); - LED(selected + 1, 0); - // Finished recording - - // If we were previously playing, set playing off - // so next button push begins playing what we recorded - playing = 0; - } - - // Change where to record (or begin playing) - else if (button_pressed) - { - // Next option if we were previously playing - if (playing) - selected = (selected + 1) % OPTS; - playing = !playing; - - LEDsoff(); - LED(selected + 1, 0); - - // Begin transmitting - if (playing) - { - LED(LED_GREEN, 0); - DbpString("Playing"); - // wait for button to be released - while(BUTTON_PRESS()) - WDT_HIT(); - Dbprintf("%x %x %x", selected, high[selected], low[selected]); - CmdHIDsimTAG(high[selected], low[selected], 0); - DbpString("Done playing"); - if (BUTTON_HELD(1000) > 0) - { - DbpString("Exiting"); - LEDsoff(); - return; - } - - /* We pressed a button so ignore it here with a delay */ - SpinDelay(300); - - // when done, we're done playing, move to next option - selected = (selected + 1) % OPTS; - playing = !playing; - LEDsoff(); - LED(selected + 1, 0); - } - else - while(BUTTON_PRESS()) - WDT_HIT(); - } - } -} -#endif - -/* -OBJECTIVE -Listen and detect an external reader. Determine the best location -for the antenna. - -INSTRUCTIONS: -Inside the ListenReaderField() function, there is two mode. -By default, when you call the function, you will enter mode 1. -If you press the PM3 button one time, you will enter mode 2. -If you press the PM3 button a second time, you will exit the function. - -DESCRIPTION OF MODE 1: -This mode just listens for an external reader field and lights up green -for HF and/or red for LF. This is the original mode of the detectreader -function. - -DESCRIPTION OF MODE 2: -This mode will visually represent, using the LEDs, the actual strength of the -current compared to the maximum current detected. Basically, once you know -what kind of external reader is present, it will help you spot the best location to place -your antenna. You will probably not get some good results if there is a LF and a HF reader -at the same place! :-) - -LIGHT SCHEME USED: -*/ -static const char LIGHT_SCHEME[] = { - 0x0, /* ---- | No field detected */ - 0x1, /* X--- | 14% of maximum current detected */ - 0x2, /* -X-- | 29% of maximum current detected */ - 0x4, /* --X- | 43% of maximum current detected */ - 0x8, /* ---X | 57% of maximum current detected */ - 0xC, /* --XX | 71% of maximum current detected */ - 0xE, /* -XXX | 86% of maximum current detected */ - 0xF, /* XXXX | 100% of maximum current detected */ -}; -static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]); - -void ListenReaderField(int limit) -{ - int lf_av, lf_av_new, lf_baseline= 0, lf_count= 0, lf_max; - int hf_av, hf_av_new, hf_baseline= 0, hf_count= 0, hf_max; - int mode=1, display_val, display_max, i; - -#define LF_ONLY 1 -#define HF_ONLY 2 - - LEDsoff(); - - lf_av=lf_max=ReadAdc(ADC_CHAN_LF); - - if(limit != HF_ONLY) { - Dbprintf("LF 125/134 Baseline: %d", lf_av); - lf_baseline = lf_av; - } - - hf_av=hf_max=ReadAdc(ADC_CHAN_HF); - - if (limit != LF_ONLY) { - Dbprintf("HF 13.56 Baseline: %d", hf_av); - hf_baseline = hf_av; - } - - for(;;) { - if (BUTTON_PRESS()) { - SpinDelay(500); - switch (mode) { - case 1: - mode=2; - DbpString("Signal Strength Mode"); - break; - case 2: - default: - DbpString("Stopped"); - LEDsoff(); - return; - break; - } - } - WDT_HIT(); - - if (limit != HF_ONLY) { - if(mode==1) { - 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) { - 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; - } - } - - if (limit != LF_ONLY) { - if (mode == 1){ - 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) { - 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; - display_max = lf_max; - } else if (limit == HF_ONLY) { - display_val = hf_av; - display_max = hf_max; - } else { /* Pick one at random */ - if( (hf_max - hf_baseline) > (lf_max - lf_baseline) ) { - display_val = hf_av; - display_max = hf_max; - } else { - display_val = lf_av; - display_max = lf_max; - } - } - for (i=0; i= ((display_max/LIGHT_LEN)*i) && display_val <= ((display_max/LIGHT_LEN)*(i+1))) { - if (LIGHT_SCHEME[i] & 0x1) LED_C_ON(); else LED_C_OFF(); - if (LIGHT_SCHEME[i] & 0x2) LED_A_ON(); else LED_A_OFF(); - if (LIGHT_SCHEME[i] & 0x4) LED_B_ON(); else LED_B_OFF(); - if (LIGHT_SCHEME[i] & 0x8) LED_D_ON(); else LED_D_OFF(); - break; - } - } - } - } -} - -void UsbPacketReceived(BYTE *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->arg[0]); - UsbSendPacket((BYTE*)&ack, sizeof(ack)); - break; -#endif - -#ifdef WITH_LF - case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K: - ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes); - break; -#endif - -#ifdef WITH_ISO15693 - case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693: - AcquireRawAdcSamplesIso15693(); - break; -#endif - - case CMD_BUFF_CLEAR: - BufferClear(); - break; - -#ifdef WITH_ISO15693 - case CMD_READER_ISO_15693: - ReaderIso15693(c->arg[0]); - break; -#endif - - case CMD_READER_LEGIC_RF: - LegicRfReader(c->arg[0], c->arg[1]); - break; - -#ifdef WITH_ISO15693 - case CMD_SIMTAG_ISO_15693: - SimTagIso15693(c->arg[0]); - break; -#endif - -#ifdef WITH_ISO14443b - case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443: - AcquireRawAdcSamplesIso14443(c->arg[0]); - break; -#endif - -#ifdef WITH_ISO14443b - case CMD_READ_SRI512_TAG: - ReadSRI512Iso14443(c->arg[0]); - break; - case CMD_READ_SRIX4K_TAG: - ReadSRIX4KIso14443(c->arg[0]); - break; -#endif - -#ifdef WITH_ISO14443a - case CMD_READER_ISO_14443a: - ReaderIso14443a(c->arg[0]); - break; -#endif - -#ifdef WITH_ISO14443a - case CMD_READER_MIFARE: - ReaderMifare(c->arg[0]); - break; -#endif - -#ifdef WITH_ISO14443b - case CMD_SNOOP_ISO_14443: - SnoopIso14443(); - break; -#endif - -#ifdef WITH_ISO14443a - case CMD_SNOOP_ISO_14443a: - SnoopIso14443a(); - break; -#endif - - case CMD_SIMULATE_TAG_HF_LISTEN: - SimulateTagHfListen(); - break; - -#ifdef WITH_ISO14443b - case CMD_SIMULATE_TAG_ISO_14443: - SimulateIso14443Tag(); - break; -#endif - -#ifdef WITH_ISO14443a - case CMD_SIMULATE_TAG_ISO_14443a: - SimulateIso14443aTag(c->arg[0], c->arg[1]); // ## Simulate iso14443a tag - pass tag type & UID - break; -#endif - - case CMD_MEASURE_ANTENNA_TUNING: - MeasureAntennaTuning(); - break; - - case CMD_MEASURE_ANTENNA_TUNING_HF: - MeasureAntennaTuningHf(); - break; - - case CMD_LISTEN_READER_FIELD: - ListenReaderField(c->arg[0]); - break; - -#ifdef WITH_LF - case CMD_HID_DEMOD_FSK: - CmdHIDdemodFSK(0, 0, 0, 1); // Demodulate HID tag - break; -#endif - -#ifdef WITH_LF - case CMD_HID_SIM_TAG: - CmdHIDsimTAG(c->arg[0], c->arg[1], 1); // Simulate HID tag by ID - break; -#endif - - case CMD_FPGA_MAJOR_MODE_OFF: // ## FPGA Control - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); - LED_D_OFF(); // LED D indicates field ON or OFF - break; - -#ifdef WITH_LF - case CMD_READ_TI_TYPE: - ReadTItag(); - break; -#endif - -#ifdef WITH_LF - case CMD_WRITE_TI_TYPE: - WriteTItag(c->arg[0],c->arg[1],c->arg[2]); - break; -#endif - - case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: { - UsbCommand n; - if(c->cmd == CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K) { - n.cmd = CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K; - } else { - n.cmd = CMD_DOWNLOADED_RAW_BITS_TI_TYPE; - } - n.arg[0] = c->arg[0]; - memcpy(n.d.asDwords, BigBuf+c->arg[0], 12*sizeof(DWORD)); - UsbSendPacket((BYTE *)&n, sizeof(n)); - break; - } - - case CMD_DOWNLOADED_SIM_SAMPLES_125K: { - BYTE *b = (BYTE *)BigBuf; - memcpy(b+c->arg[0], c->d.asBytes, 48); - //Dbprintf("copied 48 bytes to %i",b+c->arg[0]); - UsbSendPacket((BYTE*)&ack, sizeof(ack)); - break; - } - -#ifdef WITH_LF - case CMD_SIMULATE_TAG_125K: - LED_A_ON(); - SimulateTagLowFrequency(c->arg[0], c->arg[1], 1); - LED_A_OFF(); - break; -#endif - - case CMD_READ_MEM: - ReadMem(c->arg[0]); - break; - - case CMD_SET_LF_DIVISOR: - 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; - -#ifdef WITH_LF - case CMD_LF_SIMULATE_BIDIR: - SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]); - break; -#endif - -#ifdef WITH_LCD - case CMD_LCD_RESET: - LCDReset(); - break; - case CMD_LCD: - LCDSend(c->arg[0]); - break; -#endif - case CMD_SETUP_WRITE: - case CMD_FINISH_WRITE: - case CMD_HARDWARE_RESET: - USB_D_PLUS_PULLUP_OFF(); - SpinDelay(1000); - SpinDelay(1000); - 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((BYTE*)&c, sizeof(c)); - } - break; - default: - Dbprintf("%s: 0x%04x","unknown command:",c->cmd); - break; - } -} - -void __attribute__((noreturn)) AppMain(void) -{ - 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(); - LED_A_OFF(); - - UsbStart(); - - // The FPGA gets its clock from us from PCK0 output, so set that up. - 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 - 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 - AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST; - // Reset SSC - AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST; - - // Load the FPGA image, which we have stored in our flash. - FpgaDownloadAndGo(); - -#ifdef WITH_LCD - - LCDInit(); - - // test text on different colored backgrounds - 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); - LCDFill(0, 1+8* 9, 132, 8, WHITE); - LCDFill(0, 1+8*10, 132, 8, RED); - LCDFill(0, 1+8*11, 132, 8, GREEN); - LCDFill(0, 1+8*12, 132, 8, BLUE); - LCDFill(0, 1+8*13, 132, 8, YELLOW); - LCDFill(0, 1+8*14, 132, 8, CYAN); - LCDFill(0, 1+8*15, 132, 8, MAGENTA); - -#endif - - for(;;) { - UsbPoll(FALSE); - WDT_HIT(); - -#ifdef WITH_LF - if (BUTTON_HELD(1000) > 0) - SamyRun(); -#endif - } -} +//----------------------------------------------------------------------------- +// 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 (##) +//----------------------------------------------------------------------------- + +#include +#include "apps.h" +#include "legicrf.h" +#ifdef WITH_LCD +#include "fonts.h" +#include "LCD.h" +#endif + +#define va_list __builtin_va_list +#define va_start __builtin_va_start +#define va_arg __builtin_va_arg +#define va_end __builtin_va_end +int kvsprintf(char const *fmt, void *arg, int radix, va_list ap); + + +#define abs(x) ( ((x)<0) ? -(x) : (x) ) + +//============================================================================= +// A buffer where we can queue things up to be sent through the FPGA, for +// any purpose (fake tag, as reader, whatever). We go MSB first, since that +// is the order in which they go out on the wire. +//============================================================================= + +BYTE ToSend[512]; +int ToSendMax; +static int ToSendBit; +struct common_area common_area __attribute__((section(".commonarea"))); + +void BufferClear(void) +{ + memset(BigBuf,0,sizeof(BigBuf)); + Dbprintf("Buffer cleared (%i bytes)",sizeof(BigBuf)); +} + +void ToSendReset(void) +{ + ToSendMax = -1; + ToSendBit = 8; +} + +void ToSendStuffBit(int b) +{ + if(ToSendBit >= 8) { + ToSendMax++; + ToSend[ToSendMax] = 0; + ToSendBit = 0; + } + + if(b) { + ToSend[ToSendMax] |= (1 << (7 - ToSendBit)); + } + + ToSendBit++; + + if(ToSendBit >= sizeof(ToSend)) { + ToSendBit = 0; + DbpString("ToSendStuffBit overflowed!"); + } +} + +//============================================================================= +// Debug print functions, to go out over USB, to the usual PC-side client. +//============================================================================= + +void DbpString(char *str) +{ + /* this holds up stuff unless we're connected to usb */ + if (!UsbConnected()) + return; + + UsbCommand c; + c.cmd = CMD_DEBUG_PRINT_STRING; + 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)); + // 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 */ + if (!UsbConnected()) + return; + + UsbCommand c; + c.cmd = CMD_DEBUG_PRINT_INTEGERS; + c.arg[0] = x1; + c.arg[1] = x2; + c.arg[2] = x3; + + UsbSendPacket((BYTE *)&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); +} + +//----------------------------------------------------------------------------- +// Read an ADC channel and block till it completes, then return the result +// in ADC units (0 to 1023). Also a routine to average 32 samples and +// return that. +//----------------------------------------------------------------------------- +static int ReadAdc(int ch) +{ + DWORD d; + + 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); + AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch); + + AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START; + while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) + ; + d = AT91C_BASE_ADC->ADC_CDR[ch]; + + return d; +} + +static int AvgAdc(int ch) +{ + int i; + int a = 0; + + for(i = 0; i < 32; i++) { + a += ReadAdc(ch); + } + + return (a + 15) >> 5; +} + +void MeasureAntennaTuning(void) +{ + BYTE *dest = (BYTE *)BigBuf; + int i, ptr = 0, adcval = 0, peak = 0, peakv = 0, peakf = 0;; + int vLf125 = 0, vLf134 = 0, vHf = 0; // in mV + + UsbCommand c; + + DbpString("Measuring antenna characteristics, please wait."); + memset(BigBuf,0,sizeof(BigBuf)); + +/* + * Sweeps the useful LF range of the proxmark from + * 46.8kHz (divisor=255) to 600kHz (divisor=19) and + * read the voltage in the antenna, the result left + * in the buffer is a graph which should clearly show + * the resonating frequency of your LF antenna + * ( hopefully around 95 if it is tuned to 125kHz!) + */ + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + for (i=255; i>19; i--) { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i); + SpinDelay(20); + // Vref = 3.3V, and a 10000:240 voltage divider on the input + // can measure voltages up to 137500 mV + adcval = ((137500 * AvgAdc(ADC_CHAN_LF)) >> 10); + if (i==95) vLf125 = adcval; // voltage at 125Khz + if (i==89) vLf134 = adcval; // voltage at 134Khz + + dest[i] = adcval>>8; // scale int to fit in byte for graphing purposes + if(dest[i] > peak) { + peakv = adcval; + peak = dest[i]; + peakf = i; + ptr = i; + } + } + + // 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; + + c.cmd = CMD_MEASURED_ANTENNA_TUNING; + c.arg[0] = (vLf125 << 0) | (vLf134 << 16); + c.arg[1] = vHf; + c.arg[2] = peakf | (peakv << 16); + UsbSendPacket((BYTE *)&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; + int n = sizeof(BigBuf); + BYTE v = 0; + int i; + int p = 0; + + // We're using this mode just so that I can test it out; the simulated + // tag mode would work just as well and be simpler. + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_848_KHZ | FPGA_HF_READER_RX_XCORR_SNOOP); + + // We need to listen to the high-frequency, peak-detected path. + SetAdcMuxFor(GPIO_MUXSEL_HIPKD); + + FpgaSetupSsc(); + + i = 0; + for(;;) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + AT91C_BASE_SSC->SSC_THR = 0xff; + } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { + BYTE r = (BYTE)AT91C_BASE_SSC->SSC_RHR; + + v <<= 1; + if(r & 1) { + v |= 1; + } + p++; + + if(p >= 8) { + dest[i] = v; + v = 0; + p = 0; + i++; + + if(i >= n) { + break; + } + } + } + } + DbpString("simulate tag (now type bitsamples)"); +} + +void ReadMem(int addr) +{ + const BYTE *data = ((BYTE *)addr); + + 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; +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 + * symbol _bootphase1_version_pointer, perform slight sanity checks on the + * pointer, then use it. + */ + 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() +{ + DbpString("Stand-alone mode! No PC necessary."); + + // 3 possible options? no just 2 for now +#define OPTS 2 + + int high[OPTS], low[OPTS]; + + // Oooh pretty -- notify user we're in elite samy mode now + LED(LED_RED, 200); + LED(LED_ORANGE, 200); + LED(LED_GREEN, 200); + LED(LED_ORANGE, 200); + LED(LED_RED, 200); + LED(LED_ORANGE, 200); + LED(LED_GREEN, 200); + LED(LED_ORANGE, 200); + LED(LED_RED, 200); + + int selected = 0; + int playing = 0; + + // Turn on selected LED + LED(selected + 1, 0); + + for (;;) + { + UsbPoll(FALSE); + WDT_HIT(); + + // Was our button held down or pressed? + int button_pressed = BUTTON_HELD(1000); + SpinDelay(300); + + // Button was held for a second, begin recording + if (button_pressed > 0) + { + LEDsoff(); + LED(selected + 1, 0); + LED(LED_RED2, 0); + + // record + DbpString("Starting recording"); + + // wait for button to be released + while(BUTTON_PRESS()) + WDT_HIT(); + + /* need this delay to prevent catching some weird data */ + SpinDelay(500); + + CmdHIDdemodFSK(1, &high[selected], &low[selected], 0); + Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]); + + LEDsoff(); + LED(selected + 1, 0); + // Finished recording + + // If we were previously playing, set playing off + // so next button push begins playing what we recorded + playing = 0; + } + + // Change where to record (or begin playing) + else if (button_pressed) + { + // Next option if we were previously playing + if (playing) + selected = (selected + 1) % OPTS; + playing = !playing; + + LEDsoff(); + LED(selected + 1, 0); + + // Begin transmitting + if (playing) + { + LED(LED_GREEN, 0); + DbpString("Playing"); + // wait for button to be released + while(BUTTON_PRESS()) + WDT_HIT(); + Dbprintf("%x %x %x", selected, high[selected], low[selected]); + CmdHIDsimTAG(high[selected], low[selected], 0); + DbpString("Done playing"); + if (BUTTON_HELD(1000) > 0) + { + DbpString("Exiting"); + LEDsoff(); + return; + } + + /* We pressed a button so ignore it here with a delay */ + SpinDelay(300); + + // when done, we're done playing, move to next option + selected = (selected + 1) % OPTS; + playing = !playing; + LEDsoff(); + LED(selected + 1, 0); + } + else + while(BUTTON_PRESS()) + WDT_HIT(); + } + } +} +#endif + +/* +OBJECTIVE +Listen and detect an external reader. Determine the best location +for the antenna. + +INSTRUCTIONS: +Inside the ListenReaderField() function, there is two mode. +By default, when you call the function, you will enter mode 1. +If you press the PM3 button one time, you will enter mode 2. +If you press the PM3 button a second time, you will exit the function. + +DESCRIPTION OF MODE 1: +This mode just listens for an external reader field and lights up green +for HF and/or red for LF. This is the original mode of the detectreader +function. + +DESCRIPTION OF MODE 2: +This mode will visually represent, using the LEDs, the actual strength of the +current compared to the maximum current detected. Basically, once you know +what kind of external reader is present, it will help you spot the best location to place +your antenna. You will probably not get some good results if there is a LF and a HF reader +at the same place! :-) + +LIGHT SCHEME USED: +*/ +static const char LIGHT_SCHEME[] = { + 0x0, /* ---- | No field detected */ + 0x1, /* X--- | 14% of maximum current detected */ + 0x2, /* -X-- | 29% of maximum current detected */ + 0x4, /* --X- | 43% of maximum current detected */ + 0x8, /* ---X | 57% of maximum current detected */ + 0xC, /* --XX | 71% of maximum current detected */ + 0xE, /* -XXX | 86% of maximum current detected */ + 0xF, /* XXXX | 100% of maximum current detected */ +}; +static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]); + +void ListenReaderField(int limit) +{ + int lf_av, lf_av_new, lf_baseline= 0, lf_count= 0, lf_max; + int hf_av, hf_av_new, hf_baseline= 0, hf_count= 0, hf_max; + int mode=1, display_val, display_max, i; + +#define LF_ONLY 1 +#define HF_ONLY 2 + + LEDsoff(); + + lf_av=lf_max=ReadAdc(ADC_CHAN_LF); + + if(limit != HF_ONLY) { + Dbprintf("LF 125/134 Baseline: %d", lf_av); + lf_baseline = lf_av; + } + + hf_av=hf_max=ReadAdc(ADC_CHAN_HF); + + if (limit != LF_ONLY) { + Dbprintf("HF 13.56 Baseline: %d", hf_av); + hf_baseline = hf_av; + } + + for(;;) { + if (BUTTON_PRESS()) { + SpinDelay(500); + switch (mode) { + case 1: + mode=2; + DbpString("Signal Strength Mode"); + break; + case 2: + default: + DbpString("Stopped"); + LEDsoff(); + return; + break; + } + } + WDT_HIT(); + + if (limit != HF_ONLY) { + if(mode==1) { + 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) { + 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; + } + } + + if (limit != LF_ONLY) { + if (mode == 1){ + 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) { + 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; + display_max = lf_max; + } else if (limit == HF_ONLY) { + display_val = hf_av; + display_max = hf_max; + } else { /* Pick one at random */ + if( (hf_max - hf_baseline) > (lf_max - lf_baseline) ) { + display_val = hf_av; + display_max = hf_max; + } else { + display_val = lf_av; + display_max = lf_max; + } + } + for (i=0; i= ((display_max/LIGHT_LEN)*i) && display_val <= ((display_max/LIGHT_LEN)*(i+1))) { + if (LIGHT_SCHEME[i] & 0x1) LED_C_ON(); else LED_C_OFF(); + if (LIGHT_SCHEME[i] & 0x2) LED_A_ON(); else LED_A_OFF(); + if (LIGHT_SCHEME[i] & 0x4) LED_B_ON(); else LED_B_OFF(); + if (LIGHT_SCHEME[i] & 0x8) LED_D_ON(); else LED_D_OFF(); + break; + } + } + } + } +} + +void UsbPacketReceived(BYTE *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->arg[0]); + UsbSendPacket((BYTE*)&ack, sizeof(ack)); + break; +#endif + +#ifdef WITH_LF + case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K: + ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes); + break; +#endif + +#ifdef WITH_ISO15693 + case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693: + AcquireRawAdcSamplesIso15693(); + break; +#endif + + case CMD_BUFF_CLEAR: + BufferClear(); + break; + +#ifdef WITH_ISO15693 + case CMD_READER_ISO_15693: + ReaderIso15693(c->arg[0]); + break; +#endif + + case CMD_READER_LEGIC_RF: + LegicRfReader(c->arg[0], c->arg[1]); + break; + +#ifdef WITH_ISO15693 + case CMD_SIMTAG_ISO_15693: + SimTagIso15693(c->arg[0]); + break; +#endif + +#ifdef WITH_ISO14443b + case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443: + AcquireRawAdcSamplesIso14443(c->arg[0]); + break; +#endif + +#ifdef WITH_ISO14443b + case CMD_READ_SRI512_TAG: + ReadSRI512Iso14443(c->arg[0]); + break; + case CMD_READ_SRIX4K_TAG: + ReadSRIX4KIso14443(c->arg[0]); + break; +#endif + +#ifdef WITH_ISO14443a + case CMD_READER_ISO_14443a: + ReaderIso14443a(c->arg[0]); + break; +#endif + +#ifdef WITH_ISO14443a + case CMD_READER_MIFARE: + ReaderMifare(c->arg[0]); + break; +#endif + +#ifdef WITH_ISO14443b + case CMD_SNOOP_ISO_14443: + SnoopIso14443(); + break; +#endif + +#ifdef WITH_ISO14443a + case CMD_SNOOP_ISO_14443a: + SnoopIso14443a(); + break; +#endif + + case CMD_SIMULATE_TAG_HF_LISTEN: + SimulateTagHfListen(); + break; + +#ifdef WITH_ISO14443b + case CMD_SIMULATE_TAG_ISO_14443: + SimulateIso14443Tag(); + break; +#endif + +#ifdef WITH_ISO14443a + case CMD_SIMULATE_TAG_ISO_14443a: + SimulateIso14443aTag(c->arg[0], c->arg[1]); // ## Simulate iso14443a tag - pass tag type & UID + break; +#endif + + case CMD_MEASURE_ANTENNA_TUNING: + MeasureAntennaTuning(); + break; + + case CMD_MEASURE_ANTENNA_TUNING_HF: + MeasureAntennaTuningHf(); + break; + + case CMD_LISTEN_READER_FIELD: + ListenReaderField(c->arg[0]); + break; + +#ifdef WITH_LF + case CMD_HID_DEMOD_FSK: + CmdHIDdemodFSK(0, 0, 0, 1); // Demodulate HID tag + break; +#endif + +#ifdef WITH_LF + case CMD_HID_SIM_TAG: + CmdHIDsimTAG(c->arg[0], c->arg[1], 1); // Simulate HID tag by ID + break; +#endif + + case CMD_FPGA_MAJOR_MODE_OFF: // ## FPGA Control + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(200); + LED_D_OFF(); // LED D indicates field ON or OFF + break; + +#ifdef WITH_LF + case CMD_READ_TI_TYPE: + ReadTItag(); + break; +#endif + +#ifdef WITH_LF + case CMD_WRITE_TI_TYPE: + WriteTItag(c->arg[0],c->arg[1],c->arg[2]); + break; +#endif + + case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: { + UsbCommand n; + if(c->cmd == CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K) { + n.cmd = CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K; + } else { + n.cmd = CMD_DOWNLOADED_RAW_BITS_TI_TYPE; + } + n.arg[0] = c->arg[0]; + memcpy(n.d.asDwords, BigBuf+c->arg[0], 12*sizeof(DWORD)); + UsbSendPacket((BYTE *)&n, sizeof(n)); + break; + } + + case CMD_DOWNLOADED_SIM_SAMPLES_125K: { + BYTE *b = (BYTE *)BigBuf; + memcpy(b+c->arg[0], c->d.asBytes, 48); + //Dbprintf("copied 48 bytes to %i",b+c->arg[0]); + UsbSendPacket((BYTE*)&ack, sizeof(ack)); + break; + } + +#ifdef WITH_LF + case CMD_SIMULATE_TAG_125K: + LED_A_ON(); + SimulateTagLowFrequency(c->arg[0], c->arg[1], 1); + LED_A_OFF(); + break; +#endif + + case CMD_READ_MEM: + ReadMem(c->arg[0]); + break; + + case CMD_SET_LF_DIVISOR: + 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; + +#ifdef WITH_LF + case CMD_LF_SIMULATE_BIDIR: + SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]); + break; +#endif + +#ifdef WITH_LCD + case CMD_LCD_RESET: + LCDReset(); + break; + case CMD_LCD: + LCDSend(c->arg[0]); + break; +#endif + case CMD_SETUP_WRITE: + case CMD_FINISH_WRITE: + case CMD_HARDWARE_RESET: + USB_D_PLUS_PULLUP_OFF(); + SpinDelay(1000); + SpinDelay(1000); + 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((BYTE*)&c, sizeof(c)); + } + break; + default: + Dbprintf("%s: 0x%04x","unknown command:",c->cmd); + break; + } +} + +void __attribute__((noreturn)) AppMain(void) +{ + 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(); + LED_A_OFF(); + + UsbStart(); + + // The FPGA gets its clock from us from PCK0 output, so set that up. + 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 + 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 + AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST; + // Reset SSC + AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST; + + // Load the FPGA image, which we have stored in our flash. + FpgaDownloadAndGo(); + +#ifdef WITH_LCD + + LCDInit(); + + // test text on different colored backgrounds + 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); + LCDFill(0, 1+8* 9, 132, 8, WHITE); + LCDFill(0, 1+8*10, 132, 8, RED); + LCDFill(0, 1+8*11, 132, 8, GREEN); + LCDFill(0, 1+8*12, 132, 8, BLUE); + LCDFill(0, 1+8*13, 132, 8, YELLOW); + LCDFill(0, 1+8*14, 132, 8, CYAN); + LCDFill(0, 1+8*15, 132, 8, MAGENTA); + +#endif + + for(;;) { + UsbPoll(FALSE); + WDT_HIT(); + +#ifdef WITH_LF + if (BUTTON_HELD(1000) > 0) + SamyRun(); +#endif + } +}