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appmain.c
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//-----------------------------------------------------------------------------
// Jonathan Westhues, Mar 2006
// Edits by Gerhard de Koning Gans, Sep 2007 (##)
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// The main application code. This is the first thing called after start.c
// executes.
//-----------------------------------------------------------------------------
#include "appmain.h"
#include "clocks.h"
#include "usb_cdc.h"
#include "proxmark3_arm.h"
#include "dbprint.h"
#include "pmflash.h"
#include "fpga.h"
#include "fpga.h"
#include "fpgaloader.h"
#include "string.h"
#include "printf.h"
#include "legicrf.h"
#include "BigBuf.h"
#include "iso14443a.h"
#include "iso14443b.h"
#include "iso15693.h"
#include "thinfilm.h"
#include "felica.h"
#include "hitag2.h"
#include "hitagS.h"
#include "em4x50.h"
#include "em4x70.h"
#include "iclass.h"
#include "legicrfsim.h"
//#include "cryptorfsim.h"
#include "epa.h"
#include "hfsnoop.h"
#include "lfops.h"
#include "lfsampling.h"
#include "mifarecmd.h"
#include "mifaredesfire.h"
#include "mifaresim.h"
#include "pcf7931.h"
#include "Standalone/standalone.h"
#include "util.h"
#include "ticks.h"
#include "commonutil.h"
#include "crc16.h"
#ifdef WITH_LCD
#include "LCD_disabled.h"
#endif
#ifdef WITH_SMARTCARD
#include "i2c.h"
#endif
#ifdef WITH_FPC_USART
#include "usart.h"
#endif
#ifdef WITH_FLASH
#include "flashmem.h"
#include "spiffs.h"
#endif
int g_dbglevel = DBG_ERROR;
uint8_t g_trigger = 0;
bool g_hf_field_active = false;
extern uint32_t _stack_start[], _stack_end[];
common_area_t g_common_area __attribute__((section(".commonarea")));
static int button_status = BUTTON_NO_CLICK;
static bool allow_send_wtx = false;
uint16_t g_tearoff_delay_us = 0;
bool g_tearoff_enabled = false;
int tearoff_hook(void) {
if (g_tearoff_enabled) {
if (g_tearoff_delay_us == 0) {
Dbprintf(_RED_("No tear-off delay configured!"));
return PM3_SUCCESS; // SUCCESS = the hook didn't do anything
}
SpinDelayUsPrecision(g_tearoff_delay_us);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
g_tearoff_enabled = false;
Dbprintf(_YELLOW_("Tear-off triggered!"));
return PM3_ETEAROFF;
} else {
return PM3_SUCCESS; // SUCCESS = the hook didn't do anything
}
}
void hf_field_off(void) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
g_hf_field_active = false;
}
void send_wtx(uint16_t wtx) {
if (allow_send_wtx) {
reply_ng(CMD_WTX, PM3_SUCCESS, (uint8_t *)&wtx, sizeof(wtx));
}
}
//-----------------------------------------------------------------------------
// Read an ADC channel and block till it completes, then return the result
// in ADC units (0 to 1023). Also a routine to sum up a number of samples and
// return that.
//-----------------------------------------------------------------------------
static uint16_t ReadAdc(int ch) {
// Note: ADC_MODE_PRESCALE and ADC_MODE_SAMPLE_HOLD_TIME are set to the maximum allowed value.
// AMPL_HI is are high impedance (10MOhm || 1MOhm) output, the input capacitance of the ADC is 12pF (typical). This results in a time constant
// of RC = (0.91MOhm) * 12pF = 10.9us. Even after the maximum configurable sample&hold time of 40us the input capacitor will not be fully charged.
//
// The maths are:
// 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
//
// v_cap = v_in * (1 - exp(-SHTIM/RC)) = v_in * (1 - exp(-40us/10.9us)) = v_in * 0,97 (i.e. an error of 3%)
AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
AT91C_BASE_ADC->ADC_MR =
ADC_MODE_PRESCALE(63) // ADC_CLK = MCK / ((63+1) * 2) = 48MHz / 128 = 375kHz
| ADC_MODE_STARTUP_TIME(1) // Startup Time = (1+1) * 8 / ADC_CLK = 16 / 375kHz = 42,7us Note: must be > 20us
| ADC_MODE_SAMPLE_HOLD_TIME(15); // Sample & Hold Time SHTIM = 15 / ADC_CLK = 15 / 375kHz = 40us
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))) {};
return (AT91C_BASE_ADC->ADC_CDR[ch] & 0x3FF);
}
// was static - merlok
uint16_t AvgAdc(int ch) {
return SumAdc(ch, 32) >> 5;
}
uint16_t SumAdc(int ch, int NbSamples) {
uint16_t a = 0;
for (uint8_t i = 0; i < NbSamples; i++)
a += ReadAdc(ch);
return (a + (NbSamples >> 1) - 1);
}
static void MeasureAntennaTuning(void) {
uint32_t peak = 0;
// in mVolt
struct p {
uint32_t v_lf134;
uint32_t v_lf125;
uint32_t v_lfconf;
uint32_t v_hf;
uint32_t peak_v;
uint32_t peak_f;
int divisor;
uint8_t results[256];
} PACKED payload;
memset(payload.results, 0, sizeof(payload.results));
sample_config *sc = getSamplingConfig();
payload.divisor = sc->divisor;
LED_B_ON();
/*
* 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!)
*/
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER | FPGA_LF_ADC_READER_FIELD);
SpinDelay(50);
for (uint8_t i = 255; i >= 19; i--) {
WDT_HIT();
FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
SpinDelay(20);
uint32_t adcval = ((MAX_ADC_LF_VOLTAGE * (SumAdc(ADC_CHAN_LF, 32) >> 1)) >> 14);
if (i == LF_DIVISOR_125)
payload.v_lf125 = adcval; // voltage at 125kHz
if (i == LF_DIVISOR_134)
payload.v_lf134 = adcval; // voltage at 134kHz
if (i == sc->divisor)
payload.v_lfconf = adcval; // voltage at `lf config --divisor`
payload.results[i] = adcval >> 9; // scale int to fit in byte for graphing purposes
if (payload.results[i] > peak) {
payload.peak_v = adcval;
payload.peak_f = i;
peak = payload.results[i];
}
}
LED_A_ON();
// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER);
SpinDelay(50);
payload.v_hf = (MAX_ADC_HF_VOLTAGE * SumAdc(ADC_CHAN_HF, 32)) >> 15;
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
reply_ng(CMD_MEASURE_ANTENNA_TUNING, PM3_SUCCESS, (uint8_t *)&payload, sizeof(payload));
LEDsoff();
}
// Measure HF in milliVolt
static uint16_t MeasureAntennaTuningHfData(void) {
return (MAX_ADC_HF_VOLTAGE * SumAdc(ADC_CHAN_HF, 32)) >> 15;
}
// Measure LF in milliVolt
static uint32_t MeasureAntennaTuningLfData(void) {
return (MAX_ADC_LF_VOLTAGE * (SumAdc(ADC_CHAN_LF, 32) >> 1)) >> 14;
}
void print_stack_usage(void) {
for (uint32_t *p = _stack_start; ; ++p) {
if (*p != 0xdeadbeef) {
Dbprintf(" Max stack usage......... %d / %d bytes", (uint32_t)_stack_end - (uint32_t)p, (uint32_t)_stack_end - (uint32_t)_stack_start);
break;
}
}
}
void ReadMem(int addr) {
const uint8_t *data = ((uint8_t *)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, cf commonutil.h */
/* bootrom version information is pointed to from _bootphase1_version_pointer */
extern uint32_t _bootphase1_version_pointer[], _flash_start[], _flash_end[], __data_src_start__[];
#ifdef WITH_NO_COMPRESSION
extern uint32_t _bootrom_end[], _bootrom_start[], __os_size__[];
#endif
static void SendVersion(void) {
char temp[PM3_CMD_DATA_SIZE - 12]; /* Limited data payload in USB packets */
char VersionString[PM3_CMD_DATA_SIZE - 12] = { '\0' };
/* 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.
*/
// dummy casting to avoid "dereferencing type-punned pointer breaking strict-aliasing rules" errors
uint32_t bootrom_version_ptr = (uint32_t)_bootphase1_version_pointer;
char *bootrom_version = *(char **)(bootrom_version_ptr);
strncat(VersionString, " [ "_YELLOW_("ARM")" ]\n", sizeof(VersionString) - strlen(VersionString) - 1);
if ((uint32_t)bootrom_version < (uint32_t)_flash_start || (uint32_t)bootrom_version >= (uint32_t)_flash_end) {
strcat(VersionString, "bootrom version information appears invalid\n");
} else {
FormatVersionInformation(temp, sizeof(temp), " bootrom: ", bootrom_version);
strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
strncat(VersionString, "\n", sizeof(VersionString) - strlen(VersionString) - 1);
}
FormatVersionInformation(temp, sizeof(temp), " os: ", &g_version_information);
strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
strncat(VersionString, "\n", sizeof(VersionString) - strlen(VersionString) - 1);
#if defined(__clang__)
strncat(VersionString, " compiled with Clang/LLVM "__VERSION__"\n", sizeof(VersionString) - strlen(VersionString) - 1);
#elif defined(__GNUC__) || defined(__GNUG__)
strncat(VersionString, " compiled with GCC "__VERSION__"\n", sizeof(VersionString) - strlen(VersionString) - 1);
#endif
strncat(VersionString, "\n [ "_YELLOW_("FPGA")" ] \n ", sizeof(VersionString) - strlen(VersionString) - 1);
for (int i = 0; i < g_fpga_bitstream_num; i++) {
strncat(VersionString, g_fpga_version_information[i], sizeof(VersionString) - strlen(VersionString) - 1);
if (i < g_fpga_bitstream_num - 1) {
strncat(VersionString, "\n ", sizeof(VersionString) - strlen(VersionString) - 1);
}
}
#ifndef WITH_NO_COMPRESSION
// Send Chip ID and used flash memory
uint32_t text_and_rodata_section_size = (uint32_t)__data_src_start__ - (uint32_t)_flash_start;
uint32_t compressed_data_section_size = g_common_area.arg1;
#endif
struct p {
uint32_t id;
uint32_t section_size;
uint32_t versionstr_len;
char versionstr[PM3_CMD_DATA_SIZE - 12];
} PACKED;
struct p payload;
payload.id = *(AT91C_DBGU_CIDR);
#ifdef WITH_NO_COMPRESSION
payload.section_size = (uint32_t)_bootrom_end - (uint32_t)_bootrom_start + (uint32_t)__os_size__;
#else
payload.section_size = text_and_rodata_section_size + compressed_data_section_size;
#endif
payload.versionstr_len = strlen(VersionString) + 1;
memcpy(payload.versionstr, VersionString, payload.versionstr_len);
reply_ng(CMD_VERSION, PM3_SUCCESS, (uint8_t *)&payload, 12 + payload.versionstr_len);
}
static void TimingIntervalAcquisition(void) {
// trigger new acquisition by turning main oscillator off and on
mck_from_pll_to_slck();
mck_from_slck_to_pll();
// wait for MCFR and recompute RTMR scaler
StartTickCount();
}
static void print_debug_level(void) {
char dbglvlstr[20] = {0};
switch (g_dbglevel) {
case DBG_NONE:
sprintf(dbglvlstr, "none");
break;
case DBG_ERROR:
sprintf(dbglvlstr, "error");
break;
case DBG_INFO:
sprintf(dbglvlstr, "info");
break;
case DBG_DEBUG:
sprintf(dbglvlstr, "debug");
break;
case DBG_EXTENDED:
sprintf(dbglvlstr, "extended");
break;
}
Dbprintf(" Debug log level......... %d ( " _YELLOW_("%s")" )", g_dbglevel, dbglvlstr);
}
// measure the Connection Speed by sending SpeedTestBufferSize bytes to client and measuring the elapsed time.
// Note: this mimics GetFromBigbuf(), i.e. we have the overhead of the PacketCommandNG structure included.
static void printConnSpeed(void) {
DbpString(_CYAN_("Transfer Speed"));
Dbprintf(" Sending packets to client...");
#define CONN_SPEED_TEST_MIN_TIME 500 // in milliseconds
uint8_t *test_data = BigBuf_get_addr();
uint32_t start_time = GetTickCount();
uint32_t delta_time = 0;
uint32_t bytes_transferred = 0;
LED_B_ON();
while (delta_time < CONN_SPEED_TEST_MIN_TIME) {
reply_ng(CMD_DOWNLOADED_BIGBUF, PM3_SUCCESS, test_data, PM3_CMD_DATA_SIZE);
bytes_transferred += PM3_CMD_DATA_SIZE;
delta_time = GetTickCountDelta(start_time);
}
LED_B_OFF();
Dbprintf(" Time elapsed................... %dms", delta_time);
Dbprintf(" Bytes transferred.............. %d", bytes_transferred);
Dbprintf(" Transfer Speed PM3 -> Client... " _YELLOW_("%d") " bytes/s", 1000 * bytes_transferred / delta_time);
}
/**
* Prints runtime information about the PM3.
**/
static void SendStatus(void) {
BigBuf_print_status();
Fpga_print_status();
#ifdef WITH_FLASH
Flashmem_print_status();
#endif
#ifdef WITH_SMARTCARD
I2C_print_status();
#endif
#ifdef WITH_LF
printLFConfig(); // LF Sampling config
printT55xxConfig(); // LF T55XX Config
#endif
#ifdef WITH_ISO14443a
printHf14aConfig(); // HF 14a config
#endif
printConnSpeed();
DbpString(_CYAN_("Various"));
print_stack_usage();
print_debug_level();
tosend_t *ts = get_tosend();
Dbprintf(" ToSendMax............... %d", ts->max);
Dbprintf(" ToSend BUFFERSIZE....... %d", TOSEND_BUFFER_SIZE);
while ((AT91C_BASE_PMC->PMC_MCFR & AT91C_CKGR_MAINRDY) == 0); // Wait for MAINF value to become available...
uint16_t mainf = AT91C_BASE_PMC->PMC_MCFR & AT91C_CKGR_MAINF; // Get # main clocks within 16 slow clocks
Dbprintf(" Slow clock.............. %d Hz", (16 * MAINCK) / mainf);
uint32_t delta_time = 0;
uint32_t start_time = GetTickCount();
#define SLCK_CHECK_MS 50
SpinDelay(SLCK_CHECK_MS);
delta_time = GetTickCountDelta(start_time);
if ((delta_time < SLCK_CHECK_MS - 1) || (delta_time > SLCK_CHECK_MS + 1)) {
// error > 2% with SLCK_CHECK_MS=50
Dbprintf(_RED_(" Slow Clock speed change detected, TIA needed"));
Dbprintf(_YELLOW_(" Slow Clock actual speed seems closer to %d kHz"),
(16 * MAINCK / 1000) / mainf * delta_time / SLCK_CHECK_MS);
}
DbpString(_CYAN_("Installed StandAlone Mode"));
ModInfo();
#ifdef WITH_FLASH
Flashmem_print_info();
#endif
DbpString("");
reply_ng(CMD_STATUS, PM3_SUCCESS, NULL, 0);
}
static void SendCapabilities(void) {
capabilities_t capabilities;
capabilities.version = CAPABILITIES_VERSION;
capabilities.via_fpc = g_reply_via_fpc;
capabilities.via_usb = g_reply_via_usb;
capabilities.bigbuf_size = BigBuf_get_size();
capabilities.baudrate = 0; // no real baudrate for USB-CDC
#ifdef WITH_FPC_USART
if (g_reply_via_fpc)
capabilities.baudrate = g_usart_baudrate;
#endif
#ifdef WITH_FLASH
capabilities.compiled_with_flash = true;
capabilities.hw_available_flash = FlashInit();
#else
capabilities.compiled_with_flash = false;
capabilities.hw_available_flash = false;
#endif
#ifdef WITH_SMARTCARD
capabilities.compiled_with_smartcard = true;
uint8_t maj, min;
capabilities.hw_available_smartcard = I2C_get_version(&maj, &min) == PM3_SUCCESS;
#else
capabilities.compiled_with_smartcard = false;
capabilities.hw_available_smartcard = false;
#endif
#ifdef WITH_FPC_USART
capabilities.compiled_with_fpc_usart = true;
#else
capabilities.compiled_with_fpc_usart = false;
#endif
#ifdef WITH_FPC_USART_DEV
capabilities.compiled_with_fpc_usart_dev = true;
#else
capabilities.compiled_with_fpc_usart_dev = false;
#endif
#ifdef WITH_FPC_USART_HOST
capabilities.compiled_with_fpc_usart_host = true;
#else
capabilities.compiled_with_fpc_usart_host = false;
#endif
#ifdef WITH_LF
capabilities.compiled_with_lf = true;
#else
capabilities.compiled_with_lf = false;
#endif
#ifdef WITH_HITAG
capabilities.compiled_with_hitag = true;
#else
capabilities.compiled_with_hitag = false;
#endif
#ifdef WITH_EM4x50
capabilities.compiled_with_em4x50 = true;
#else
capabilities.compiled_with_em4x50 = false;
#endif
#ifdef WITH_EM4x70
capabilities.compiled_with_em4x70 = true;
#else
capabilities.compiled_with_em4x70 = false;
#endif
#ifdef WITH_HFSNIFF
capabilities.compiled_with_hfsniff = true;
#else
capabilities.compiled_with_hfsniff = false;
#endif
#ifdef WITH_HFPLOT
capabilities.compiled_with_hfplot = true;
#else
capabilities.compiled_with_hfplot = false;
#endif
#ifdef WITH_ISO14443a
capabilities.compiled_with_iso14443a = true;
#else
capabilities.compiled_with_iso14443a = false;
#endif
#ifdef WITH_ISO14443b
capabilities.compiled_with_iso14443b = true;
#else
capabilities.compiled_with_iso14443b = false;
#endif
#ifdef WITH_ISO15693
capabilities.compiled_with_iso15693 = true;
#else
capabilities.compiled_with_iso15693 = false;
#endif
#ifdef WITH_FELICA
capabilities.compiled_with_felica = true;
#else
capabilities.compiled_with_felica = false;
#endif
#ifdef WITH_LEGICRF
capabilities.compiled_with_legicrf = true;
#else
capabilities.compiled_with_legicrf = false;
#endif
#ifdef WITH_ICLASS
capabilities.compiled_with_iclass = true;
#else
capabilities.compiled_with_iclass = false;
#endif
#ifdef WITH_NFCBARCODE
capabilities.compiled_with_nfcbarcode = true;
#else
capabilities.compiled_with_nfcbarcode = false;
#endif
#ifdef WITH_LCD
capabilities.compiled_with_lcd = true;
#else
capabilities.compiled_with_lcd = false;
#endif
reply_ng(CMD_CAPABILITIES, PM3_SUCCESS, (uint8_t *)&capabilities, sizeof(capabilities));
}
// Show some leds in a pattern to identify StandAlone mod is running
void StandAloneMode(void) {
DbpString("");
DbpString("Stand-alone mode, no computer necessary");
SpinDown(50);
SpinDelay(50);
SpinUp(50);
SpinDelay(50);
SpinDown(50);
}
/*
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! :-)
*/
#define LIGHT_LEVELS 20
void ListenReaderField(uint8_t limit) {
#define LF_ONLY 1
#define HF_ONLY 2
#define REPORT_CHANGE 1000 // report new values only if they have changed at least by REPORT_CHANGE mV
uint16_t lf_av = 0, lf_av_new, lf_baseline = 0, lf_max = 0;
uint16_t hf_av = 0, hf_av_new, hf_baseline = 0, hf_max = 0;
uint16_t mode = 1, display_val, display_max;
// switch off FPGA - we don't want to measure our own signal
// 20180315 - iceman, why load this before and then turn off?
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
if (limit == LF_ONLY) {
lf_av = lf_max = (MAX_ADC_LF_VOLTAGE * SumAdc(ADC_CHAN_LF, 32)) >> 15;
Dbprintf("LF 125/134kHz Baseline: %dmV", lf_av);
lf_baseline = lf_av;
}
if (limit == HF_ONLY) {
// iceman, useless, since we are measuring readerfield, not our field. My tests shows a max of 20v from a reader.
hf_av = hf_max = (MAX_ADC_HF_VOLTAGE * SumAdc(ADC_CHAN_HF, 32)) >> 15;
Dbprintf("HF 13.56MHz Baseline: %dmV", hf_av);
hf_baseline = hf_av;
}
for (;;) {
// Switch modes with button
if (BUTTON_PRESS()) {
SpinDelay(500);
switch (mode) {
case 1:
mode = 2;
DbpString("Signal Strength Mode");
break;
case 2:
default:
DbpString("Stopped");
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
return;
}
}
WDT_HIT();
if (limit == LF_ONLY) {
if (mode == 1) {
if (ABS(lf_av - lf_baseline) > REPORT_CHANGE)
LED_D_ON();
else
LED_D_OFF();
}
lf_av_new = (MAX_ADC_LF_VOLTAGE * SumAdc(ADC_CHAN_LF, 32)) >> 15;
// see if there's a significant change
if (ABS(lf_av - lf_av_new) > REPORT_CHANGE) {
Dbprintf("LF 125/134kHz Field Change: %5dmV", lf_av_new);
lf_av = lf_av_new;
if (lf_av > lf_max)
lf_max = lf_av;
}
}
if (limit == HF_ONLY) {
if (mode == 1) {
if (ABS(hf_av - hf_baseline) > REPORT_CHANGE)
LED_B_ON();
else
LED_B_OFF();
}
hf_av_new = (MAX_ADC_HF_VOLTAGE * SumAdc(ADC_CHAN_HF, 32)) >> 15;
// see if there's a significant change
if (ABS(hf_av - hf_av_new) > REPORT_CHANGE) {
Dbprintf("HF 13.56MHz Field Change: %5dmV", hf_av_new);
hf_av = hf_av_new;
if (hf_av > hf_max)
hf_max = hf_av;
}
}
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;
}
}
display_val = display_val * (4 * LIGHT_LEVELS) / MAX(1, display_max);
uint32_t duty_a = MIN(MAX(display_val, 0 * LIGHT_LEVELS), 1 * LIGHT_LEVELS) - 0 * LIGHT_LEVELS;
uint32_t duty_b = MIN(MAX(display_val, 1 * LIGHT_LEVELS), 2 * LIGHT_LEVELS) - 1 * LIGHT_LEVELS;
uint32_t duty_c = MIN(MAX(display_val, 2 * LIGHT_LEVELS), 3 * LIGHT_LEVELS) - 2 * LIGHT_LEVELS;
uint32_t duty_d = MIN(MAX(display_val, 3 * LIGHT_LEVELS), 4 * LIGHT_LEVELS) - 3 * LIGHT_LEVELS;
// LED A
if (duty_a == 0) {
LED_A_OFF();
} else if (duty_a == LIGHT_LEVELS) {
LED_A_ON();
} else {
LED_A_ON();
SpinDelay(duty_a);
LED_A_OFF();
SpinDelay(LIGHT_LEVELS - duty_a);
}
// LED B
if (duty_b == 0) {
LED_B_OFF();
} else if (duty_b == LIGHT_LEVELS) {
LED_B_ON();
} else {
LED_B_ON();
SpinDelay(duty_b);
LED_B_OFF();
SpinDelay(LIGHT_LEVELS - duty_b);
}
// LED C
if (duty_c == 0) {
LED_C_OFF();
} else if (duty_c == LIGHT_LEVELS) {
LED_C_ON();
} else {
LED_C_ON();
SpinDelay(duty_c);
LED_C_OFF();
SpinDelay(LIGHT_LEVELS - duty_c);
}
// LED D
if (duty_d == 0) {
LED_D_OFF();
} else if (duty_d == LIGHT_LEVELS) {
LED_D_ON();
} else {
LED_D_ON();
SpinDelay(duty_d);
LED_D_OFF();
SpinDelay(LIGHT_LEVELS - duty_d);
}
}
}
}
static void PacketReceived(PacketCommandNG *packet) {
/*
if (packet->ng) {
Dbprintf("received NG frame with %d bytes payload, with command: 0x%04x", packet->length, cmd);
} else {
Dbprintf("received OLD frame of %d bytes, with command: 0x%04x and args: %d %d %d", packet->length, packet->cmd, packet->oldarg[0], packet->oldarg[1], packet->oldarg[2]);
}
*/
switch (packet->cmd) {
case CMD_BREAK_LOOP:
break;
case CMD_QUIT_SESSION: {
g_reply_via_fpc = false;
g_reply_via_usb = false;
break;
}
// emulator
case CMD_SET_DBGMODE: {
g_dbglevel = packet->data.asBytes[0];
print_debug_level();
reply_ng(CMD_SET_DBGMODE, PM3_SUCCESS, NULL, 0);
break;
}
case CMD_SET_TEAROFF: {
struct p {
uint16_t delay_us;
bool on;
bool off;
} PACKED;
struct p *payload = (struct p *)packet->data.asBytes;
if (payload->on && payload->off)
reply_ng(CMD_SET_TEAROFF, PM3_EINVARG, NULL, 0);
if (payload->on)
g_tearoff_enabled = true;
if (payload->off)
g_tearoff_enabled = false;
if (payload->delay_us > 0)
g_tearoff_delay_us = payload->delay_us;
reply_ng(CMD_SET_TEAROFF, PM3_SUCCESS, NULL, 0);
break;
}
// always available
case CMD_HF_DROPFIELD: {
hf_field_off();
break;
}
#ifdef WITH_LF
case CMD_LF_T55XX_SET_CONFIG: {
setT55xxConfig(packet->oldarg[0], (t55xx_configurations_t *) packet->data.asBytes);
break;
}
case CMD_LF_SAMPLING_PRINT_CONFIG: {
printLFConfig();
break;
}
case CMD_LF_SAMPLING_GET_CONFIG: {
sample_config *config = getSamplingConfig();
reply_ng(CMD_LF_SAMPLING_GET_CONFIG, PM3_SUCCESS, (uint8_t *)config, sizeof(sample_config));
break;
}
case CMD_LF_SAMPLING_SET_CONFIG: {
sample_config c;
memcpy(&c, packet->data.asBytes, sizeof(sample_config));
setSamplingConfig(&c);
break;
}
case CMD_LF_ACQ_RAW_ADC: {
struct p {
uint32_t samples : 31;
bool verbose : 1;
} PACKED;
struct p *payload = (struct p *)packet->data.asBytes;
uint32_t bits = SampleLF(payload->verbose, payload->samples);
reply_ng(CMD_LF_ACQ_RAW_ADC, PM3_SUCCESS, (uint8_t *)&bits, sizeof(bits));
break;
}
case CMD_LF_MOD_THEN_ACQ_RAW_ADC: {
struct p {
uint32_t delay;
uint16_t period_0;
uint16_t period_1;
uint8_t symbol_extra[LF_CMDREAD_MAX_EXTRA_SYMBOLS];
uint16_t period_extra[LF_CMDREAD_MAX_EXTRA_SYMBOLS];
uint32_t samples : 31;
bool verbose : 1;
} PACKED;
struct p *payload = (struct p *)packet->data.asBytes;
uint8_t symbol_extra[LF_CMDREAD_MAX_EXTRA_SYMBOLS];
uint16_t period_extra[LF_CMDREAD_MAX_EXTRA_SYMBOLS];
memcpy(symbol_extra, payload->symbol_extra, sizeof(symbol_extra));
memcpy(period_extra, payload->period_extra, sizeof(period_extra));
ModThenAcquireRawAdcSamples125k(payload->delay, payload->period_0, payload->period_1, symbol_extra, period_extra, packet->data.asBytes + sizeof(struct p), payload->verbose, payload->samples);
break;
}
case CMD_LF_SNIFF_RAW_ADC: {
struct p {
uint32_t samples : 31;
bool verbose : 1;
} PACKED;
struct p *payload = (struct p *)packet->data.asBytes;
uint32_t bits = SniffLF(payload->verbose, payload->samples);
reply_ng(CMD_LF_SNIFF_RAW_ADC, PM3_SUCCESS, (uint8_t *)&bits, sizeof(bits));
break;
}
case CMD_LF_HID_WATCH: {
uint32_t high, low;
int res = lf_hid_watch(0, &high, &low);
reply_ng(CMD_LF_HID_WATCH, res, NULL, 0);
break;
}
case CMD_LF_HID_SIMULATE: {
lf_hidsim_t *payload = (lf_hidsim_t *)packet->data.asBytes;
CmdHIDsimTAG(payload->hi2, payload->hi, payload->lo, payload->longFMT, 1);
break;
}
case CMD_LF_FSK_SIMULATE: {
lf_fsksim_t *payload = (lf_fsksim_t *)packet->data.asBytes;
CmdFSKsimTAG(payload->fchigh, payload->fclow, payload->separator, payload->clock, packet->length - sizeof(lf_fsksim_t), payload->data, true);
break;
}
case CMD_LF_ASK_SIMULATE: {
lf_asksim_t *payload = (lf_asksim_t *)packet->data.asBytes;
CmdASKsimTAG(payload->encoding, payload->invert, payload->separator, payload->clock, packet->length - sizeof(lf_asksim_t), payload->data, true);
break;
}
case CMD_LF_PSK_SIMULATE: {
lf_psksim_t *payload = (lf_psksim_t *)packet->data.asBytes;
CmdPSKsimTAG(payload->carrier, payload->invert, payload->clock, packet->length - sizeof(lf_psksim_t), payload->data, true);
break;
}
case CMD_LF_NRZ_SIMULATE: {
lf_nrzsim_t *payload = (lf_nrzsim_t *)packet->data.asBytes;
CmdNRZsimTAG(payload->invert, payload->separator, payload->clock, packet->length - sizeof(lf_nrzsim_t), payload->data, true);
break;
}
case CMD_LF_HID_CLONE: {
lf_hidsim_t *payload = (lf_hidsim_t *)packet->data.asBytes;
CopyHIDtoT55x7(payload->hi2, payload->hi, payload->lo, payload->longFMT, payload->Q5, payload->EM);
break;
}
case CMD_LF_IO_WATCH: {
uint32_t high, low;
int res = lf_io_watch(0, &high, &low);
reply_ng(CMD_LF_IO_WATCH, res, NULL, 0);
break;
}
case CMD_LF_EM410X_WATCH: {
uint32_t high;
uint64_t low;
int res = lf_em410x_watch(0, &high, &low);
reply_ng(CMD_LF_EM410X_WATCH, res, NULL, 0);
break;
}
case CMD_LF_EM410X_WRITE: {
struct p {
uint8_t card;
uint8_t clock;
uint32_t high;
uint32_t low;
} PACKED;
struct p *payload = (struct p *)packet->data.asBytes;
int res = copy_em410x_to_t55xx(payload->card, payload->clock, payload->high, payload->low);
reply_ng(CMD_LF_EM410X_WRITE, res, NULL, 0);
break;
}
case CMD_LF_TI_READ: {
ReadTItag();
break;
}
case CMD_LF_TI_WRITE: {
struct p {
uint32_t high;
uint32_t low;
uint16_t crc;
} PACKED;
struct p *payload = (struct p *)packet->data.asBytes;
WriteTItag(payload->high, payload->low, packet->crc);
break;
}
case CMD_LF_SIMULATE: {
LED_A_ON();
struct p {
uint16_t len;
uint16_t gap;
} PACKED;
struct p *payload = (struct p *)packet->data.asBytes;
// length, start gap, led control
SimulateTagLowFrequency(payload->len, payload->gap, true);
reply_ng(CMD_LF_SIMULATE, PM3_EOPABORTED, NULL, 0);
LED_A_OFF();
break;
}
case CMD_LF_SIMULATE_BIDIR: {
SimulateTagLowFrequencyBidir(packet->oldarg[0], packet->oldarg[1]);
break;
}
case CMD_LF_T55XX_READBL: {
struct p {
uint32_t password;
uint8_t blockno;
uint8_t page;
bool pwdmode;
uint8_t downlink_mode;
} PACKED;
struct p *payload = (struct p *) packet->data.asBytes;
T55xxReadBlock(payload->page, payload->pwdmode, false, payload->blockno, payload->password, payload->downlink_mode);
break;
}
case CMD_LF_T55XX_WRITEBL: {
// uses NG format
T55xxWriteBlock(packet->data.asBytes);
break;
}
case CMD_LF_T55XX_DANGERRAW: {
T55xxDangerousRawTest(packet->data.asBytes);
break;
}
case CMD_LF_T55XX_WAKEUP: {
struct p {
uint32_t password;
uint8_t flags;
} PACKED;
struct p *payload = (struct p *) packet->data.asBytes;
T55xxWakeUp(payload->password, payload->flags);
break;
}
case CMD_LF_T55XX_RESET_READ: {
T55xxResetRead(packet->data.asBytes[0] & 0xff);
break;
}
case CMD_LF_T55XX_CHK_PWDS: {
T55xx_ChkPwds(packet->data.asBytes[0] & 0xff);
break;
}
case CMD_LF_PCF7931_READ: {
ReadPCF7931();
break;
}
case CMD_LF_PCF7931_WRITE: {
WritePCF7931(
packet->data.asBytes[0], packet->data.asBytes[1], packet->data.asBytes[2], packet->data.asBytes[3],
packet->data.asBytes[4], packet->data.asBytes[5], packet->data.asBytes[6], packet->data.asBytes[9],
packet->data.asBytes[7] - 128, packet->data.asBytes[8] - 128,
packet->oldarg[0],
packet->oldarg[1],
packet->oldarg[2]
);
break;
}
case CMD_LF_EM4X_LOGIN: {
struct p {
uint32_t password;
} PACKED;
struct p *payload = (struct p *) packet->data.asBytes;
EM4xLogin(payload->password);
break;
}
case CMD_LF_EM4X_BF: {
struct p {
uint32_t start_pwd;