X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/dd8e45133090d9684a7f0d37ef59137e6b7159a9..3458bb279b00048892e56cec6f0a13e8c03f97db:/armsrc/lfops.c diff --git a/armsrc/lfops.c b/armsrc/lfops.c index 36efe729..995a8810 100644 --- a/armsrc/lfops.c +++ b/armsrc/lfops.c @@ -17,7 +17,7 @@ #include "lfdemod.h" #include "lfsampling.h" #include "protocols.h" -#include "usb_cdc.h" // for usb_poll_validate_length +#include "usb_cdc.h" #include "fpgaloader.h" /** @@ -1198,13 +1198,78 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) * and enlarge the gap ones. * Q5 tags seems to have issues when these values changes. */ + + /* + // Original Timings for reference +//note startgap must be sent after tag has been powered up for more than 3ms (per T5557 ds) + #define START_GAP 31*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (or 15fc) #define WRITE_GAP 20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc) #define WRITE_0 18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc) #define WRITE_1 50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) 432 for T55x7; 448 for E5550 #define READ_GAP 15*8 -// Long Leading Reference -#define Reference_llr (136+18)*8 // Needs to be WRITR_0 + 136 clocks. + +*/ +/* Q5 timing datasheet: + * Type | MIN | Typical | Max | + * Start_Gap | 10*8 | ? | 50*8 | + * Write_Gap Normal mode | 8*8 | 14*8 | 20*8 | + * Write_Gap Fast Mode | 8*8 | ? | 20*8 | + * Write_0 Normal mode | 16*8 | 24*8 | 32*8 | + * Write_1 Normal mode | 48*8 | 56*8 | 64*8 | + * Write_0 Fast Mode | 8*8 | 12*8 | 16*8 | + * Write_1 Fast Mode | 24*8 | 28*8 | 32*8 | +*/ + +/* T5557 timing datasheet: + * Type | MIN | Typical | Max | + * Start_Gap | 10*8 | ? | 50*8 | + * Write_Gap Normal mode | 8*8 |50-150us | 30*8 | + * Write_Gap Fast Mode | 8*8 | ? | 20*8 | + * Write_0 Normal mode | 16*8 | 24*8 | 31*8 | + * Write_1 Normal mode | 48*8 | 54*8 | 63*8 | + * Write_0 Fast Mode | 8*8 | 12*8 | 15*8 | + * Write_1 Fast Mode | 24*8 | 28*8 | 31*8 | +*/ + +/* T5577C timing datasheet for Fixed-Bit-Length protocol (defualt): + * Type | MIN | Typical | Max | + * Start_Gap | 8*8 | 15*8 | 50*8 | + * Write_Gap Normal mode | 8*8 | 10*8 | 20*8 | + * Write_Gap Fast Mode | 8*8 | 10*8 | 20*8 | + * Write_0 Normal mode | 16*8 | 24*8 | 32*8 | + * Write_1 Normal mode | 48*8 | 56*8 | 64*8 | + * Write_0 Fast Mode | 8*8 | 12*8 | 16*8 | + * Write_1 Fast Mode | 24*8 | 28*8 | 32*8 | +*/ + +// Structure to hold Timing values. In future will be simplier to add user changable timings. +typedef struct { + uint16_t START_GAP; + uint16_t WRITE_GAP; + uint16_t WRITE_0; + uint16_t WRITE_1; + uint16_t WRITE_2; + uint16_t WRITE_3; + uint16_t READ_GAP; +} T55xx_Timing; + +// Set Initial/Default Values. Note: *8 can occure when used. This should keep things simplier here. +T55xx_Timing T55xx_Timing_FixedBit = { 31 * 8 , 20 * 8 , 18 * 8 , 50 * 8 , 0 , 0 , 15 * 8 }; +T55xx_Timing T55xx_Timing_LLR = { 31 * 8 , 20 * 8 , 18 * 8 , 50 * 8 , 0 , 0 , 15 * 8 }; +T55xx_Timing T55xx_Timing_Leading0 = { 31 * 8 , 20 * 8 , 18 * 8 , 40 * 8 , 0 , 0 , 15 * 8 }; +T55xx_Timing T55xx_Timing_1of4 = { 31 * 8 , 20 * 8 , 18 * 8 , 34 * 8 , 50 * 8 , 66 * 8 , 15 * 8 }; + +// Some defines for readability +#define T55xx_DLMode_Fixed 0 // Default Mode +#define T55xx_DLMode_LLR 1 // Long Leading Reference +#define T55xx_DLMode_Leading0 2 // Leading Zero +#define T55xx_DLMode_1of4 3 // 1 of 4 +#define T55xx_LongLeadingReference 4 // Value to tell Write Bit to send long reference +// Macro for code readability +#define BitStream_Byte(X) ((X) >> 3) +#define BitStream_Bit(X) ((X) & 7) + void TurnReadLFOn(int delay) { FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); @@ -1213,173 +1278,135 @@ void TurnReadLFOn(int delay) { } // Write one bit to card -void T55xxWriteBit(int bit) { - if (!bit) - TurnReadLFOn(WRITE_0); - else - TurnReadLFOn(WRITE_1); +void T55xxWriteBit(int bit, T55xx_Timing *Timings) { + + // If bit = 4 Send Long Leading Reference which is 138 + WRITE_0 + // Dbprintf ("Bits : %d",bit); + switch (bit){ + case 0 : TurnReadLFOn(Timings->WRITE_0); break; // Send bit 0/00 + case 1 : TurnReadLFOn(Timings->WRITE_1); break; // Send bit 1/01 + case 2 : TurnReadLFOn(Timings->WRITE_2); break; // Send bits 10 + case 3 : TurnReadLFOn(Timings->WRITE_3); break; // Send bits 11 + case 4 : TurnReadLFOn(Timings->WRITE_0 + (136 * 8)); break; // Send Long Leading Reference + } FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(WRITE_GAP); + WaitUS(Timings->WRITE_GAP); } -void T55xxWrite_LLR (void) +// Function to abstract an Arbitrary length byte array to store bit pattern. +// bit_array - Array to hold data/bit pattern +// start_offset - bit location to start storing new bits. +// data - upto 32 bits of data to store +// num_bits - how many bits (low x bits of data) Max 32 bits at a time +// max_len - how many bytes can the bit_array hold (ensure no buffer overflow) +// returns "Next" bit offset / bits stored (for next store) +//int T55xx_SetBits (uint8_t *bit_array, int start_offset, uint32_t data , int num_bits, int max_len) +int T55xx_SetBits (uint8_t *BitStream, uint8_t start_offset, uint32_t data , uint8_t num_bits, uint8_t max_len) { - TurnReadLFOn (Reference_llr); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(WRITE_GAP); -} + int8_t offset; + int8_t NextOffset = start_offset; -#define START_GAPlz 31*8 -#define WRITE_GAPlz 20*8 -#define WRITElz_0 18*8 -#define WRITElz_1 40*8 -#define READ_GAP 15*8 + // Check if data will fit. + if ((start_offset + num_bits) <= (max_len*8)) { + // Loop through the data and store + for (offset = (num_bits-1); offset >= 0; offset--) { -void T55xxWriteBit_Leading0(int bit) { - if (!bit) - TurnReadLFOn(WRITElz_0); - else - TurnReadLFOn(WRITElz_1); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(WRITE_GAPlz); -// WaitUS(160); + if ((data >> offset) & 1) BitStream[BitStream_Byte(NextOffset)] |= (1 << BitStream_Bit(NextOffset)); // Set the bit to 1 + else BitStream[BitStream_Byte(NextOffset)] &= (0xff ^ (1 << BitStream_Bit(NextOffset))); // Set the bit to 0 + + NextOffset++; + } + } + else { + // Note: This should never happen unless some code changes cause it. + // So short message for coders when testing. + Dbprintf ("T55 too many bits"); + } + return NextOffset; } -#define START_GAP1of4 31*8 // SPEC: 1*8 to 50*8 - typ 10*8 (or 15fc) -#define WRITE_GAP1of4 20*8 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc) -// 00 = reference // 8 * 8 - - 68 * 8 -#define WRITE1of4_00 18*8 // SPEC: 8*8 to 68*8 - typ 24*8 (or 24fc) -#define WRITE1of4_01 34*8 // SPEC: dref+9 - dref+16 - dref+24 -#define WRITE1of4_10 50*8 // SPEC: dref+25 - dref+32 - dref+40 -#define WRITE1of4_11 66*8 // SPEC: dref+41 - dref+48 - dref+56 -#define READ1of4_GAP 15*8 +// Send one downlink command to the card +void T55xx_SendCMD (uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) { -void T55xxWriteBit_1of4(int bits) { - - switch (bits) + /* + arg bits + xxxxxxx1 0x01 PwdMode + xxxxxx1x 0x02 Page + xxxxx1xx 0x04 testMode + xxx11xxx 0x18 downlink mode + xx1xxxxx 0x20 !reg_readmode + x1xxxxxx 0x40 called for a read, so no data packet + 1xxxxxxx 0x80 reset + + */ + bool PwdMode = ((arg & 0x01) == 0x01); + bool Page = (arg & 0x02); + bool testMode = ((arg & 0x04) == 0x04); + uint8_t downlink_mode = (arg >> 3) & 0x03; + bool reg_readmode = ((arg & 0x20) == 0x20); + bool read_cmd = ((arg & 0x40) == 0x40); + bool reset = (arg & 0x80); + + uint8_t i = 0; + uint8_t BitStream[10]; // Max Downlink Command size ~74 bits, so 10 bytes (80 bits) + uint8_t BitStreamLen; + T55xx_Timing *Timing; + uint8_t SendBits; + + // Assigning Downlink Timeing for write + switch (downlink_mode) { - case 0 : TurnReadLFOn(WRITE1of4_00); break; - case 1 : TurnReadLFOn(WRITE1of4_01); break; - case 2 : TurnReadLFOn(WRITE1of4_10); break; - case 3 : TurnReadLFOn(WRITE1of4_11); break; + case T55xx_DLMode_Fixed : Timing = &T55xx_Timing_FixedBit; break; + case T55xx_DLMode_LLR : Timing = &T55xx_Timing_LLR; break; + case T55xx_DLMode_Leading0 : Timing = &T55xx_Timing_Leading0; break; + case T55xx_DLMode_1of4 : Timing = &T55xx_Timing_1of4; break; default: - TurnReadLFOn(WRITE1of4_00); - } - - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(WRITE_GAP1of4); -// WaitUS(160); -} - -void T55xxWriteBlockExt_Leading0 (uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) { - - LED_A_ON(); - bool PwdMode = arg & 0x1; - uint8_t Page = (arg & 0x2)>>1; - bool testMode = arg & 0x4; - uint32_t i = 0; - - // Set up FPGA, 125kHz - LFSetupFPGAForADC(95, true); - StartTicks(); - // make sure tag is fully powered up... - WaitMS(5); - // Trigger T55x7 in mode. - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + Timing = &T55xx_Timing_FixedBit; + } - WaitUS(START_GAPlz); + // Build Bit Stream to send. + memset (BitStream,0x00,sizeof(BitStream)); + BitStreamLen = 0; // Ensure 0 bit index to start. - /* - 0 : Leading Zero - 11 : Opcode - 00 : Fixed 00 if protected write (i.e. have password) - <32 bit Password> - 0 : Lock Bit - <32 bit data> - <3 bit addr> - - Standard Write : 0 1p L <32 data bits> <3 bit addr> - 0 10 0 00000000000000000000000000000000 001 - Protected Write: 0 1p 00 <32 pwd bits> L <32 data bits> <3 bit addr> - 0 10 00 00000000000000000000000000000000 0 00000000000000000000000000000000 001 - Wake Up 0 10 00 <32 pwd bits> - Protected Read 0 1p 00 <32 pwd bits> 0 <3 bit addr> - Standard Read 0 1p 0 <3 bit addr> - Page 0/1 read 0 1p - Reset 0 00 - - */ - T55xxWriteBit_Leading0 (0); //T55xxWriteBit(0); - - + // Add Leading 0 and 1 of 4 reference bit + if ((downlink_mode == T55xx_DLMode_Leading0) || (downlink_mode == T55xx_DLMode_1of4)) + BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 1,sizeof(BitStream)); + + // Add extra reference 0 for 1 of 4 + if (downlink_mode == T55xx_DLMode_1of4) + BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 1,sizeof(BitStream)); + + // Add Opcode + if (reset) { + // Reset : r*) 00 + BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 2,sizeof(BitStream)); + } + else + { if (testMode) Dbprintf("TestMODE"); - // Std Opcode 10 - T55xxWriteBit_Leading0 (testMode ? 0 : 1); - T55xxWriteBit_Leading0 (testMode ? 1 : Page); //Page 0 - - + BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen,testMode ? 0 : 1 , 1,sizeof(BitStream)); + BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen,testMode ? 1 : Page , 1,sizeof(BitStream)); + if (PwdMode) { - // Leading zero - insert two fixed 00 between opcode and password - T55xxWriteBit_Leading0 (0); - T55xxWriteBit_Leading0 (0); - // Send Pwd - for (i = 0x80000000; i != 0; i >>= 1) - T55xxWriteBit_Leading0 (Pwd & i); + // Leading 0 and 1 of 4 00 fixed bits if passsword used + if ((downlink_mode == T55xx_DLMode_Leading0) || (downlink_mode == T55xx_DLMode_1of4)) { + BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 2,sizeof(BitStream)); + } + BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, Pwd, 32,sizeof(BitStream)); } - - // Send Lock bit - T55xxWriteBit_Leading0 (0); - - // Send Data - for (i = 0x80000000; i != 0; i >>= 1) - T55xxWriteBit_Leading0(Data & i); - // Send Block number - for (i = 0x04; i != 0; i >>= 1) - T55xxWriteBit_Leading0 (Block & i); - - // Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550, - // so wait a little more) - // "there is a clock delay before programming" - // - programming takes ~5.6ms for t5577 ~18ms for E5550 or t5567 - // so we should wait 1 clock + 5.6ms then read response? - // but we need to know we are dealing with t5577 vs t5567 vs e5550 (or q5) marshmellow... - if (testMode) { - //TESTMODE TIMING TESTS: - // <566us does nothing - // 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); + // Add Lock bit 0 + if (!reg_readmode) BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 1,sizeof(BitStream)); - } else { - TurnReadLFOn(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 - // need to know the current block 0 config mode for - // modulation clock an other details to demod the response... - // response should be (for t55x7) a 0 bit then (ST if on) - // block data written in on repeat until reset. - - //DoPartialAcquisition(20, true, 12000); - } + // Add Data if a write command + if (!read_cmd) BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, Data, 32,sizeof(BitStream)); - // turn field off - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LED_A_OFF(); - -} -void T55xxWriteBlockExt_1of4 (uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) { + // Add Address + if (!reg_readmode) BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, Block, 3,sizeof(BitStream)); + } - LED_A_ON(); - bool PwdMode = arg & 0x1; - uint8_t Page = (arg & 0x2)>>1; - bool testMode = arg & 0x4; - int bitpos; - uint8_t bits; - + // Send Bits to T55xx // Set up FPGA, 125kHz LFSetupFPGAForADC(95, true); StartTicks(); @@ -1387,121 +1414,43 @@ void T55xxWriteBlockExt_1of4 (uint32_t Data, uint32_t Block, uint32_t Pwd, uint8 WaitMS(5); // Trigger T55x7 in mode. FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + WaitUS(Timing->START_GAP); - - WaitUS(START_GAP1of4); - - - /* - 00 : 1 if 4 - 11 : Opcode - 00 : Fixed 00 if protected write (i.e. have password) - <32 bit Password> - 0 : Lock Bit - <32 bit data> - <3 bit addr> - - Standard Write : 00 1p L <32 data bits> <3 bit addr> - 00 10 0 00000000000000000000000000000000 001 - Protected Write: 00 1p 00 <32 pwd bits> L <32 data bits> <3 bit addr> - 00 10 00 00000000000000000000000000000000 0 00000000000000000000000000000000 001 - Wake Up 00 10 00 <32 pwd bits> - Protected Read 00 1p 00 <32 pwd bits> 0 <3 bit addr> - Standard Read 00 1p 0 <3 bit addr> - Page 0/1 read 00 1p - Reset 00 00 - - */ - T55xxWriteBit_1of4 (0); //Send Reference 00 - - if (testMode) Dbprintf("TestMODE"); - // Std Opcode 10 - if (testMode) bits = 0; else bits = 2; // 0x or 1x - if (testMode) bits |= 1; else bits += (Page); // x0 or x1 - T55xxWriteBit_1of4 (bits); - - if (PwdMode) { - // 1 of 4 00 - insert two fixed 00 between opcode and password - T55xxWriteBit_1of4 (0); // 00 - - // Send Pwd - for (bitpos = 31; bitpos >= 1; bitpos -= 2) { // 2 bits at a time - bits = (((Pwd >> bitpos) & 1) << 1) + ((Pwd >> (bitpos-1)) & 1); - T55xxWriteBit_1of4 (bits); - } - } - - // Send Lock bit - bits = 0; // Add lock bit (Not Set) to the next 2 bits - - // Send Data - offset by 1 bit due to lock bit - // 2 bits at a time - Initilised with lock bit above - for (bitpos = 31; bitpos >= 1; bitpos -= 2) { - bits |= ((Data >> bitpos) & 1); // Add Low bit - T55xxWriteBit_1of4 (bits); - bits = ((Data >> (bitpos-1)) & 1) << 1; // Set next high bit - } - - // Send Block number - bits |= ((Block >> 2) & 1); - T55xxWriteBit_1of4 (bits); - bits = (Block & 3);// 1) & 2) + (Block & 1); - T55xxWriteBit_1of4 (bits); - - // Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550, - // so wait a little more) - // "there is a clock delay before programming" - // - programming takes ~5.6ms for t5577 ~18ms for E5550 or t5567 - // so we should wait 1 clock + 5.6ms then read response? - // but we need to know we are dealing with t5577 vs t5567 vs e5550 (or q5) marshmellow... - if (testMode) { - //TESTMODE TIMING TESTS: - // <566us does nothing - // 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); + // If long leading 0 send long reference pulse + if (downlink_mode == T55xx_DLMode_LLR) + T55xxWriteBit (T55xx_LongLeadingReference,Timing); // Send Long Leading Start Reference - } else { - TurnReadLFOn(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 - // need to know the current block 0 config mode for - // modulation clock an other details to demod the response... - // response should be (for t55x7) a 0 bit then (ST if on) - // block data written in on repeat until reset. - - //DoPartialAcquisition(20, true, 12000); + if ((downlink_mode == T55xx_DLMode_1of4) && (BitStreamLen > 0)) { // 1 of 4 need to send 2 bits at a time + for ( i = 0; i < BitStreamLen-1; i+=2 ) { + SendBits = (BitStream[BitStream_Byte(i )] >> (BitStream_Bit(i )) & 1) << 1; // Bit i + SendBits += (BitStream[BitStream_Byte(i+1)] >> (BitStream_Bit(i+1)) & 1); // Bit i+1; + T55xxWriteBit (SendBits & 3,Timing); } - - // turn field off - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LED_A_OFF(); - + } + else { + for (i = 0; i < BitStreamLen; i++) { + SendBits = (BitStream[BitStream_Byte(i)] >> BitStream_Bit(i)); + T55xxWriteBit (SendBits & 1,Timing); + } + } } // Send T5577 reset command then read stream (see if we can identify the start of the stream) void T55xxResetRead(void) { LED_A_ON(); + + // send r* 00 + uint8_t arg = 0x80; // SendCMD will add correct reference mode based on flags (when added). + + // Add in downlink_mode when ready + // arg |= 0x00; // dlmode << 3 (00 default - 08 leading 0 - 10 Fixed - 18 1 of 4 ) + //clear buffer now so it does not interfere with timing later BigBuf_Clear_keep_EM(); - // Set up FPGA, 125kHz - LFSetupFPGAForADC(95, true); - StartTicks(); - // make sure tag is fully powered up... - WaitMS(5); - - // Trigger T55x7 in mode. - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(START_GAP); - - // reset tag - op code 00 - T55xxWriteBit(0); - T55xxWriteBit(0); + T55xx_SendCMD (0, 0, 0, arg); //, true); - TurnReadLFOn(READ_GAP); + TurnReadLFOn(T55xx_Timing_FixedBit.READ_GAP); // Acquisition DoPartialAcquisition(0, true, BigBuf_max_traceLen(), 0); @@ -1513,42 +1462,23 @@ void T55xxResetRead(void) { } // Write one card block in page 0, no lock -void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) { - LED_A_ON(); - bool PwdMode = arg & 0x1; - uint8_t Page = (arg & 0x2)>>1; - bool testMode = arg & 0x4; - uint32_t i = 0; - - // Set up FPGA, 125kHz - LFSetupFPGAForADC(95, true); - StartTicks(); - // make sure tag is fully powered up... - WaitMS(5); - // Trigger T55x7 in mode. - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(START_GAP); - - if (testMode) Dbprintf("TestMODE"); - // Std Opcode 10 - T55xxWriteBit(testMode ? 0 : 1); - T55xxWriteBit(testMode ? 1 : Page); //Page 0 - - if (PwdMode) { - // Send Pwd - for (i = 0x80000000; i != 0; i >>= 1) - T55xxWriteBit(Pwd & i); - } - // Send Lock bit - T55xxWriteBit(0); - - // Send Data - for (i = 0x80000000; i != 0; i >>= 1) - T55xxWriteBit(Data & i); - - // Send Block number - for (i = 0x04; i != 0; i >>= 1) - T55xxWriteBit(Block & i); +void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) { + /* + arg bits + xxxxxxx1 0x01 PwdMode + xxxxxx1x 0x02 Page + xxxxx1xx 0x04 testMode + xxx11xxx 0x18 downlink mode + xx1xxxxx 0x20 !reg_readmode + x1xxxxxx 0x40 called for a read, so no data packet + 1xxxxxxx 0x80 reset + */ + + bool testMode = ((arg & 0x04) == 0x04); + arg &= (0xff ^ 0x40); // Called for a write, so ensure it is clear/0 + + LED_A_ON (); + T55xx_SendCMD (Data, Block, Pwd, arg) ;//, false); // Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550, // so wait a little more) @@ -1577,138 +1507,43 @@ void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg //DoPartialAcquisition(20, true, 12000); } - // turn field off FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LED_A_OFF(); -} - -// Write one card block in page 0, no lock -void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) { -// arg 8 bit 00000000 -// 0000000x Password -// 000000x0 Page -// 00000x00 Test Mode -// 000xx000 (0x18) where xx : 00 - Normal Write, 01 - Long Leading Reference -// 10 - Leading 0, 11 - 1 of 4 - uint8_t downlink_mode; - - downlink_mode = (arg >> 3) & 0x03; - - switch (downlink_mode) - { - case 0 : T55xxWriteBlockExt (Data, Block, Pwd, arg); break; - case 1 : T55xxWrite_LLR (); - T55xxWriteBlockExt (Data, Block, Pwd, arg); - break; - case 2 : T55xxWriteBlockExt_Leading0 (Data, Block, Pwd, arg); break; - case 3 : T55xxWriteBlockExt_1of4 (Data, Block, Pwd, arg); break; - - default: - T55xxWriteBlockExt (Data, Block, Pwd, arg); - } cmd_send(CMD_ACK,0,0,0,0,0); + + LED_A_OFF (); } // Read one card block in page [page] -void T55xxReadBlockExt (uint16_t arg0, uint8_t Block, uint32_t Pwd) { +void T55xxReadBlock (uint16_t arg0, uint8_t Block, uint32_t Pwd) {//, struct T55xx_Timing *Timing) { + LED_A_ON(); - bool PwdMode = arg0 & 0x1; - uint8_t Page = (arg0 & 0x2) >> 1; - uint32_t i = 0; - bool RegReadMode = (Block == 0xFF);//regular read mode - //clear buffer now so it does not interfere with timing later - BigBuf_Clear_ext(false); + /* + arg bits + xxxxxxx1 0x01 PwdMode + xxxxxx1x 0x02 Page + xxxxx1xx 0x04 testMode + xxx11xxx 0x18 downlink mode + xx1xxxxx 0x20 !reg_readmode + x1xxxxxx 0x40 called for a read, so no data packet + 1xxxxxxx 0x80 reset + */ + // Set Read Flag to ensure SendCMD does not add "data" to the packet + arg0 |= 0x40; + + // RegRead Mode true of block 0xff + if (Block == 0xff) arg0 |= 0x20; + //make sure block is at max 7 Block &= 0x7; - // Set up FPGA, 125kHz to power up the tag - LFSetupFPGAForADC(95, true); - StartTicks(); - // make sure tag is fully powered up... - WaitMS(5); - // Trigger T55x7 Direct Access Mode with start gap - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(START_GAP); - - // Opcode 1[page] - T55xxWriteBit(1); - T55xxWriteBit(Page); //Page 0 - - if (PwdMode){ - // Send Pwd - for (i = 0x80000000; i != 0; i >>= 1) - T55xxWriteBit(Pwd & i); - } - // Send a zero bit separation - T55xxWriteBit(0); - - // Send Block number (if direct access mode) - if (!RegReadMode) - for (i = 0x04; i != 0; i >>= 1) - T55xxWriteBit(Block & i); - - // Turn field on to read the response - // 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); - - // Acquisition - // Now do the acquisition - DoPartialAcquisition(0, true, 12000, 0); - - // Turn the field off - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off -// cmd_send(CMD_ACK,0,0,0,0,0); - LED_A_OFF(); -} - -void T55xxReadBlockExt_Leading0 (uint16_t arg0, uint8_t Block, uint32_t Pwd) { - LED_A_ON(); - bool PwdMode = arg0 & 0x1; - uint8_t Page = (arg0 & 0x2) >> 1; - uint32_t i = 0; - bool RegReadMode = (Block == 0xFF);//regular read mode - //clear buffer now so it does not interfere with timing later BigBuf_Clear_ext(false); - //make sure block is at max 7 - Block &= 0x7; - - // Set up FPGA, 125kHz to power up the tag - LFSetupFPGAForADC(95, true); - StartTicks(); - // make sure tag is fully powered up... - WaitMS(5); - // Trigger T55x7 Direct Access Mode with start gap - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(START_GAPlz); - - T55xxWriteBit_Leading0 (0); - - // Opcode 1[page] - T55xxWriteBit_Leading0 (1); - T55xxWriteBit_Leading0 (Page); //Page 0 - - if (PwdMode){ - // Send Pwd - T55xxWriteBit_Leading0 (0); - T55xxWriteBit_Leading0 (0); - - for (i = 0x80000000; i != 0; i >>= 1) - T55xxWriteBit_Leading0 (Pwd & i); - } - // Send a zero bit separation - T55xxWriteBit_Leading0(0); - - // Send Block number (if direct access mode) - if (!RegReadMode) - for (i = 0x04; i != 0; i >>= 1) - T55xxWriteBit_Leading0(Block & i); + T55xx_SendCMD (0, Block, Pwd, arg0); //, true); // Turn field on to read the response // 137*8 seems to get to the start of data pretty well... @@ -1721,125 +1556,32 @@ void T55xxReadBlockExt_Leading0 (uint16_t arg0, uint8_t Block, uint32_t Pwd) { // Turn the field off FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off -// cmd_send(CMD_ACK,0,0,0,0,0); - LED_A_OFF(); -} - -void T55xxReadBlockExt_1of4 (uint16_t arg0, uint8_t Block, uint32_t Pwd) { - LED_A_ON(); - bool PwdMode = arg0 & 0x1; - uint8_t Page = (arg0 & 0x2) >> 1; - //uint32_t i = 0; - bool RegReadMode = (Block == 0xFF);//regular read mode - uint8_t bits; - int bitpos; - - //clear buffer now so it does not interfere with timing later - BigBuf_Clear_ext(false); - - //make sure block is at max 7 - Block &= 0x7; - - // Set up FPGA, 125kHz to power up the tag - LFSetupFPGAForADC(95, true); - StartTicks(); - // make sure tag is fully powered up... - WaitMS(5); - // Trigger T55x7 Direct Access Mode with start gap - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(START_GAP1of4); - - T55xxWriteBit_1of4 (0); // 2 Bit 00 leading reference - - // Opcode 1[page] - bits = 2 + Page; - T55xxWriteBit_1of4 (bits); - - if (PwdMode) { - // 1 of 4 00 - insert two fixed 00 between opcode and password - T55xxWriteBit_1of4 (0); // 00 - - // Send Pwd - for (bitpos = 31; bitpos >= 1; bitpos -= 2) { // 2 bits at a time - bits = (((Pwd >> bitpos) & 1) << 1) + ((Pwd >> (bitpos-1)) & 1); - T55xxWriteBit_1of4 (bits); - } - } - - // Send Lock bit - bits = 0; // Add lock bit (Not Set) to the next 2 bits - - // Send Block number (if direct access mode) - if (!RegReadMode){ - // Send Block number - bits += ((Block >> 2) & 1); - T55xxWriteBit_1of4 (bits); - bits = (Block & 3); // + (Block & 1); - T55xxWriteBit_1of4 (bits); - } - - // Turn field on to read the response - // 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); + cmd_send(CMD_ACK,0,0,0,0,0); - // Acquisition - // Now do the acquisition - DoPartialAcquisition(0, true, 12000, 0); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off -// cmd_send(CMD_ACK,0,0,0,0,0); LED_A_OFF(); } -void T55xxReadBlock (uint16_t arg0, uint8_t Block, uint32_t Pwd) { -// arg0 16 bit 00000000 -// 0000000x Password -// 000000x0 Page -// 00000x00 -// 000xx000 (0x18) where xx : 00 - Normal Write, 01 - Long Leading Reference -// 10 - Leading 0, 11 - 1 of 4 - uint8_t downlink_mode; - - downlink_mode = (arg0 >> 3) & 0x03; - - // downlink mode id set to match the 2 bit as per Tech Sheet - switch (downlink_mode) - { - case 0 : T55xxReadBlockExt (arg0, Block, Pwd); break; - case 1 : T55xxWrite_LLR (); - T55xxReadBlockExt (arg0, Block, Pwd); - break; - case 2 : T55xxReadBlockExt_Leading0 (arg0, Block, Pwd); break; - case 3 : T55xxReadBlockExt_1of4 (arg0, Block, Pwd); break; - default: - T55xxReadBlockExt (arg0, Block, Pwd) ; - } - -// T55xxReadBlockExt (arg0, Block, Pwd) ; - cmd_send(CMD_ACK,0,0,0,0,0); -} - void T55xxWakeUp(uint32_t Pwd){ LED_B_ON(); - uint32_t i = 0; - - // Set up FPGA, 125kHz - LFSetupFPGAForADC(95, true); - StartTicks(); - // make sure tag is fully powered up... - WaitMS(5); - - // Trigger T55x7 Direct Access Mode - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - WaitUS(START_GAP); - - // Opcode 10 - T55xxWriteBit(1); - T55xxWriteBit(0); //Page 0 + /* + arg bits + xxxxxxx1 0x01 PwdMode + xxxxxx1x 0x02 Page + xxxxx1xx 0x04 testMode + xxx11xxx 0x18 downlink mode + xx1xxxxx 0x20 !reg_readmode + x1xxxxxx 0x40 called for a read, so no data packet + 1xxxxxxx 0x80 reset + */ + + // r* 10 (00) r* for llr , L0 and 1/4 - (00) for L0 and 1/4 - All handled in SendCMD + // So, default Opcode 10 and pwd. + uint8_t arg = 0x01 | 0x40 | 0x20; //Password Read Call no data | reg_read no block - // Send Pwd - for (i = 0x80000000; i != 0; i >>= 1) - T55xxWriteBit(Pwd & i); + // Add in downlink_mode when ready + // arg |= 0x00; // dlmode << 3 (00 default - 08 leading 0 - 10 Fixed - 18 1 of 4 ) + + T55xx_SendCMD (0, 0, Pwd, arg); //, true); // Turn and leave field on to let the begin repeating transmission TurnReadLFOn(20*1000); @@ -1850,7 +1592,8 @@ void T55xxWakeUp(uint32_t Pwd){ void WriteT55xx(uint32_t *blockdata, uint8_t startblock, uint8_t numblocks) { // write last block first and config block last (if included) for (uint8_t i = numblocks+startblock; i > startblock; i--) { - T55xxWriteBlockExt(blockdata[i-1],i-1,0,0); + T55xxWriteBlock(blockdata[i-1],i-1,0,0);//,false); //,&T55xx_Timing_FixedBit); + //T55xx_SendCMD (blockdata[i-1],i-1,0,0);//,false); //,&T55xx_Timing_FixedBit); } } @@ -2050,6 +1793,7 @@ void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo) { #define FWD_CMD_WRITE 0xA #define FWD_CMD_READ 0x9 #define FWD_CMD_DISABLE 0x5 +#define FWD_CMD_PROTECT 0x3 uint8_t forwardLink_data[64]; //array of forwarded bits uint8_t * forward_ptr; //ptr for forward message preparation @@ -2163,7 +1907,7 @@ void SendForward(uint8_t fwd_bit_count) { FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on WaitUS(18*8); //18 cycles on (8us each) - // now start writting + // now start writting - 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); //32 cycles at 125Khz (8us each) @@ -2172,7 +1916,7 @@ void SendForward(uint8_t fwd_bit_count) { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off WaitUS(23*8); //23 cycles off (8us each) FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on - WaitUS(18*8); //18 cycles on (8us each) + WaitUS((32-23)*8); //remaining cycles on (8us each) } } } @@ -2219,7 +1963,7 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) { void EM4xWriteWord(uint32_t flag, uint32_t Data, uint32_t Pwd) { - bool PwdMode = (flag & 0xF); + bool PwdMode = (flag & 0x1); uint8_t Address = (flag >> 8) & 0xFF; uint8_t fwd_bit_count; @@ -2249,6 +1993,39 @@ void EM4xWriteWord(uint32_t flag, uint32_t Data, uint32_t Pwd) { LED_A_OFF(); cmd_send(CMD_ACK,0,0,0,0,0); } + +void EM4xProtect(uint32_t flag, uint32_t Data, uint32_t Pwd) { + + bool PwdMode = (flag & 0x1); + uint8_t fwd_bit_count; + + //clear buffer now so it does not interfere with timing later + BigBuf_Clear_ext(false); + + LED_A_ON(); + StartTicks(); + //If password mode do login + if (PwdMode) EM4xLogin(Pwd); + + forward_ptr = forwardLink_data; + fwd_bit_count = Prepare_Cmd( FWD_CMD_PROTECT ); + + //unsure if this needs the full packet config... + fwd_bit_count += Prepare_Data( Data&0xFFFF, Data>>16 ); + + SendForward(fwd_bit_count); + + //Wait for write to complete + //SpinDelay(10); + + WaitUS(6500); + //Capture response if one exists + DoPartialAcquisition(20, true, 6000, 1000); + + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off + LED_A_OFF(); + cmd_send(CMD_ACK,0,0,0,0,0); +} /* Reading a COTAG.