RfidResearchGroup/proxmark3
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renamed function and exported it

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This commit is contained in:
iceman1001 2021-12-27 17:43:28 +01:00
parent 2837cfa64f
commit 4493114f4f
2 changed files with 27 additions and 25 deletions
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49
armsrc/lfops.c
View file

@ -422,7 +422,7 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint16_t period_0, uint
// Some tags need to be interrogated very soon after activation else they enter their emulation mode
// Therefore it's up to the caller to add an initial symbol of adequate duration, except for bitbang mode.
if (bitbang) {
TurnReadLFOn(20000);
turn_read_lf_on(20000);
// HACK it appears the loop and if statements take up about 7us so adjust waits accordingly...
uint8_t hack_cnt = 7;
if (period_0 < hack_cnt || period_1 < hack_cnt) {
@ -472,13 +472,13 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint16_t period_0, uint
while (*command != '\0' && *command != ' ') {
if (ledcontrol) LED_D_ON();
if (*command == '0') {
TurnReadLFOn(period_0);
turn_read_lf_on(period_0);
} else if (*command == '1') {
TurnReadLFOn(period_1);
turn_read_lf_on(period_1);
} else {
for (uint8_t i = 0; i < LF_CMDREAD_MAX_EXTRA_SYMBOLS; i++) {
if (*command == symbol_extra[i]) {
TurnReadLFOn(period_extra[i]);
turn_read_lf_on(period_extra[i]);
break;
}
}
@ -1635,14 +1635,15 @@ int lf_io_watch(int findone, uint32_t *high, uint32_t *low, bool ledcontrol) {
* Q5 tags seems to have issues when these values changes.
*/
void TurnReadLFOn(uint32_t delay) {
void turn_read_lf_on(uint32_t delay) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER | FPGA_LF_ADC_READER_FIELD);
// measure antenna strength.
//int adcval = ((MAX_ADC_LF_VOLTAGE * (SumAdc(ADC_CHAN_LF, 32) >> 1)) >> 14);
WaitUS(delay);
}
static void TurnReadLF_off(uint32_t delay) {
void turn_read_lf_off(uint32_t delay) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
WaitUS(delay);
}
@ -1659,23 +1660,23 @@ static void T55xxWriteBit(uint8_t bit, uint8_t downlink_idx) {
switch (bit) {
case 0 :
// send bit 0/00
TurnReadLFOn(T55xx_Timing.m[downlink_idx].write_0);
turn_read_lf_on(T55xx_Timing.m[downlink_idx].write_0);
break;
case 1 :
// send bit 1/01
TurnReadLFOn(T55xx_Timing.m[downlink_idx].write_1);
turn_read_lf_on(T55xx_Timing.m[downlink_idx].write_1);
break;
case 2 :
// send bits 10 (1 of 4)
TurnReadLFOn(T55xx_Timing.m[downlink_idx].write_2);
turn_read_lf_on(T55xx_Timing.m[downlink_idx].write_2);
break;
case 3 :
// send bits 11 (1 of 4)
TurnReadLFOn(T55xx_Timing.m[downlink_idx].write_3);
turn_read_lf_on(T55xx_Timing.m[downlink_idx].write_3);
break;
case 4 :
// send Long Leading Reference
TurnReadLFOn(T55xx_Timing.m[downlink_idx].write_0 + T55_LLR_REF);
turn_read_lf_on(T55xx_Timing.m[downlink_idx].write_0 + T55_LLR_REF);
break;
}
@ -1838,7 +1839,7 @@ void T55xxResetRead(uint8_t flags, bool ledcontrol) {
T55xx_SendCMD(0, 0, arg);
TurnReadLFOn(T55xx_Timing.m[downlink_mode].read_gap);
turn_read_lf_on(T55xx_Timing.m[downlink_mode].read_gap);
// Acquisition
DoPartialAcquisition(0, false, BigBuf_max_traceLen(), 0, ledcontrol);
@ -1881,7 +1882,7 @@ void T55xxDangerousRawTest(uint8_t *data, bool ledcontrol) {
uint8_t sendbits = (bs[BITSTREAM_BYTE(i)] >> BITSTREAM_BIT(i));
T55xxWriteBit(sendbits & 1, 0);
}
TurnReadLFOn(c->time);
turn_read_lf_on(c->time);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
reply_ng(CMD_LF_T55XX_DANGERRAW, PM3_SUCCESS, NULL, 0);
if (ledcontrol) LED_A_OFF();
@ -1925,10 +1926,10 @@ void T55xxWriteBlock(uint8_t *data, bool ledcontrol) {
// 566-568 switches between wiping to 0s and doing nothing
// 5184 wipes and allows 1 block to be programmed.
// indefinite power on wipes and then programs all blocks with bitshifted data sent.
TurnReadLFOn(5184);
turn_read_lf_on(5184);
} else {
TurnReadLFOn(20 * 1000);
turn_read_lf_on(20 * 1000);
//could attempt to do a read to confirm write took
// as the tag should repeat back the new block
// until it is reset, but to confirm it we would
@ -1993,8 +1994,8 @@ bool brute_mem = (flags & 0x0100) >> 8;
// 137*8 seems to get to the start of data pretty well...
// but we want to go past the start and let the repeating data settle in...
// TurnReadLFOn(210*8); // issues with block 1 reads so dropping down seemed to help
TurnReadLFOn(137 * 8);
// turn_read_lf_on(210*8); // issues with block 1 reads so dropping down seemed to help
turn_read_lf_on(137 * 8);
// Acquisition
// Now do the acquisition
@ -2058,8 +2059,8 @@ void T55xxReadBlock(uint8_t page, bool pwd_mode, bool brute_mem, uint8_t block,
// 137*8 seems to get to the start of data pretty well...
// but we want to go past the start and let the repeating data settle in...
// TurnReadLFOn(210*8); // issues with block 1 reads so dropping down seemed to help
TurnReadLFOn(137 * 8);
// turn_read_lf_on(210*8); // issues with block 1 reads so dropping down seemed to help
turn_read_lf_on(137 * 8);
// Acquisition
// Now do the acquisition
@ -2202,7 +2203,7 @@ void T55xxWakeUp(uint32_t pwd, uint8_t flags, bool ledcontrol) {
T55xx_SendCMD(0, pwd, flags);
//-- Turn and leave field on to let the begin repeating transmission
TurnReadLFOn(20 * 1000);
turn_read_lf_on(20 * 1000);
reply_ng(CMD_LF_T55XX_WAKEUP, PM3_SUCCESS, NULL, 0);
}
@ -2537,16 +2538,16 @@ static void SendForward(uint8_t fwd_bit_count, bool fast) {
fwd_bit_sz--; //prepare next bit modulation
fwd_write_ptr++;
TurnReadLF_off(EM_START_GAP);
TurnReadLFOn(18 * 8);
turn_read_lf_off(EM_START_GAP);
turn_read_lf_on(18 * 8);
// now start writing with bitbanging the antenna. (each bit should be 32*8 total length)
while (fwd_bit_sz-- > 0) { //prepare next bit modulation
if (((*fwd_write_ptr++) & 1) == 1) {
WaitUS(32 * 8);
} else {
TurnReadLF_off(23 * 8);
TurnReadLFOn(18 * 8);
turn_read_lf_off(23 * 8);
turn_read_lf_on(18 * 8);
}
}
}

3
armsrc/lfops.h
View file

@ -53,7 +53,8 @@ void T55xxWakeUp(uint32_t pwd, uint8_t flags, bool ledcontrol);
void T55xx_ChkPwds(uint8_t flags, bool ledcontrol);
void T55xxDangerousRawTest(uint8_t *data, bool ledcontrol);
void TurnReadLFOn(uint32_t delay);
void turn_read_lf_on(uint32_t delay);
void turn_read_lf_off(uint32_t delay);
void EM4xLogin(uint32_t pwd, bool ledcontrol);
void EM4xBruteforce(uint32_t start_pwd, uint32_t n, bool ledcontrol);