]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/lfops.c
FIX: a suggested fix for #136 where the "lf t55x7 read" command when called with...
[proxmark3-svn] / armsrc / lfops.c
index 987faf826730954081db22334d893b93e37ba75a..31fe4ca970db134dcb8f884dfeb77f9d47a68370 100644 (file)
@@ -1096,6 +1096,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 #define T55x7_MODULATION_FSK2a         0x00007000
 #define T55x7_MODULATION_MANCHESTER    0x00008000
 #define T55x7_MODULATION_BIPHASE       0x00010000
+#define T55x7_MODULATION_DIPHASE       0x00018000
 //#define T55x7_MODULATION_BIPHASE57   0x00011000
 #define T55x7_BITRATE_RF_8                     0
 #define T55x7_BITRATE_RF_16                    0x00040000
@@ -1131,11 +1132,12 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
  * Relevant times in microsecond
  * To compensate antenna falling times shorten the write times
  * and enlarge the gap ones.
+ * Q5 tags seems to have issues when these values changes. 
  */
 
 #define START_GAP 50*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_0   16*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
 
 //  VALUES TAKEN FROM EM4x function: SendForward
@@ -1150,15 +1152,10 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 // TIMER_CLOCK1 = MCK/2, MCK is running at 48 MHz, Timer is running at 48/2 = 24 MHz
 // Hitag units (T0) have duration of 8 microseconds (us), which is 1/125000 per second (carrier)
 // T0 = TIMER_CLOCK1 / 125000 = 192
-// 1 Cycle = 8 microseconds(us)
-
-#define T55xx_SAMPLES_SIZE      12000 // 32 x 32 x 10  (32 bit times numofblock (7), times clock skip..)
+// 1 Cycle = 8 microseconds(us)  == 1 field clock
 
 // Write one bit to card
-void T55xxWriteBit(int bit)
-{
-       //FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+void T55xxWriteBit(int bit) {
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
        if (!bit)
                SpinDelayUs(WRITE_0);
@@ -1169,161 +1166,123 @@ void T55xxWriteBit(int bit)
 }
 
 // Write one card block in page 0, no lock
-void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMode)
-{
+void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMode) {
+       LED_A_ON();
+       
        uint32_t i = 0;
 
        // Set up FPGA, 125kHz
-       // Wait for config.. (192+8190xPOW)x8 == 67ms
-       LFSetupFPGAForADC(0, true);
+       LFSetupFPGAForADC(95, true);
        
-       // Now start writting
+       // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        SpinDelayUs(START_GAP);
 
-       // Opcode
+       // Opcode 10
        T55xxWriteBit(1);
        T55xxWriteBit(0); //Page 0
+       
        if (PwdMode == 1){
-               // Pwd
+               // Send pwd
                for (i = 0x80000000; i != 0; i >>= 1)
                        T55xxWriteBit(Pwd & i);
        }
-       // Lock bit
+       // Send lock bit
        T55xxWriteBit(0);
 
-       // Data
+       // Send data
        for (i = 0x80000000; i != 0; i >>= 1)
                T55xxWriteBit(Data & i);
 
-       // Block
+       // Send block number
        for (i = 0x04; i != 0; i >>= 1)
                T55xxWriteBit(Block & i);
 
-       // Now perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
+       // Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
        // so wait a little more)
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-       SpinDelay(20);
+       TurnReadLFOn(20 * 1000);
+       
+       // field off
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       cmd_send(CMD_ACK,0,0,0,0,0);
+       LED_A_OFF();    
 }
 
-void TurnReadLFOn(){
+void TurnReadLFOn(int delay) {
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
        // Give it a bit of time for the resonant antenna to settle.
-       SpinDelayUs(300);
+       SpinDelayUs(delay);
 }
 
-
 // Read one card block in page 0
-void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode)
-{
+void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode) {
+       LED_A_ON();
+       
        uint32_t i = 0;
-       uint8_t *dest = BigBuf_get_addr();
-       uint16_t bufferlength = BigBuf_max_traceLen();
-       if ( bufferlength > T55xx_SAMPLES_SIZE )
-               bufferlength = T55xx_SAMPLES_SIZE;
-
-       // Clear destination buffer before sending the command
-       memset(dest, 0x80, bufferlength);
+       
+       //make sure block is at max 7
+       Block &= 0x7;
 
        // Set up FPGA, 125kHz
-       // Wait for config.. (192+8190xPOW)x8 == 67ms
-       //LFSetupFPGAForADC(0, true);
-       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-
-       // Connect the A/D to the peak-detected low-frequency path.
-       SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
-
-       // Now set up the SSC to get the ADC samples that are now streaming at us.
-       FpgaSetupSsc();
-
-       // Give it a bit of time for the resonant antenna to settle.
-       //SpinDelayUs(8*200);  //192FC
-       SpinDelay(50);
+       LFSetupFPGAForADC(95, true);
        
+       // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       //SpinDelayUs(START_GAP);
-
-       // Opcode
+       SpinDelayUs(START_GAP);
+       
+       // Opcode 10
        T55xxWriteBit(1);
        T55xxWriteBit(0); //Page 0
+
        if (PwdMode == 1){
-               // Pwd
+               // Send pwd
                for (i = 0x80000000; i != 0; i >>= 1)
                        T55xxWriteBit(Pwd & i);
        }
-       // Lock bit
+       // Send a zero bit seperation
        T55xxWriteBit(0);
-       // Block
+       
+       // Send block number
        for (i = 0x04; i != 0; i >>= 1)
                T55xxWriteBit(Block & i);
 
        // Turn field on to read the response
-       TurnReadLFOn();
-       // Now do the acquisition
-       i = 0;
-       for(;;) {
-               if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) {
-                       AT91C_BASE_SSC->SSC_THR = 0x43;
-                       LED_D_ON();
-               }
-               if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) {
-                       dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-                       i++;
-                       LED_D_OFF();
-                       if (i >= bufferlength) break;
-               }
-       }
-
+       TurnReadLFOn(START_GAP);
+       
+       // Acquisition
+       doT55x7Acquisition();
+       
+       // field off
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        cmd_send(CMD_ACK,0,0,0,0,0);    
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
-       LED_D_OFF();
+       LED_A_OFF();
 }
 
 // Read card traceability data (page 1)
 void T55xxReadTrace(void){
-       
-       uint32_t i = 0;
-       uint8_t *dest = BigBuf_get_addr();
-       uint16_t bufferlength = BigBuf_max_traceLen();
-       if ( bufferlength > T55xx_SAMPLES_SIZE )
-               bufferlength= T55xx_SAMPLES_SIZE;
-
-       // Clear destination buffer before sending the command
-       memset(dest, 0x80, bufferlength);
+       LED_A_ON();
 
-       LFSetupFPGAForADC(0, true);
+       // Set up FPGA, 125kHz
+       LFSetupFPGAForADC(95, true);
+       
+       // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        SpinDelayUs(START_GAP);
 
-       // Opcode
+       // Opcode 11
        T55xxWriteBit(1);
        T55xxWriteBit(1); //Page 1
 
        // Turn field on to read the response
-       TurnReadLFOn();
+       TurnReadLFOn(START_GAP);
 
-       // Now do the acquisition
-       for(;;) {
-               if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) {
-                       AT91C_BASE_SSC->SSC_THR = 0x43;
-                       LED_D_ON();
-               }
-               if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) {
-                       dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-                       i++;
-                       LED_D_OFF();
-
-                       if (i >= bufferlength) break;
-               }
-       }
+       // Acquisition
+       doT55x7Acquisition();
 
+       // field off
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        cmd_send(CMD_ACK,0,0,0,0,0);
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
-       LED_D_OFF();
+       LED_A_OFF();
 }
 
 /*-------------- Cloning routines -----------*/
@@ -1582,7 +1541,6 @@ void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo)
 // Clone Indala 64-bit tag by UID to T55x7
 void CopyIndala64toT55x7(int hi, int lo)
 {
-
        //Program the 2 data blocks for supplied 64bit UID
        // and the block 0 for Indala64 format
        T55xxWriteBlock(hi,1,0,0);
@@ -1596,12 +1554,10 @@ void CopyIndala64toT55x7(int hi, int lo)
        //      T5567WriteBlock(0x603E1042,0);
 
        DbpString("DONE!");
-
 }
 
 void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int uid6, int uid7)
 {
-
        //Program the 7 data blocks for supplied 224bit UID
        // and the block 0 for Indala224 format
        T55xxWriteBlock(uid1,1,0,0);
@@ -1620,7 +1576,6 @@ void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int
        //      T5567WriteBlock(0x603E10E2,0);
 
        DbpString("DONE!");
-
 }
 
 //-----------------------------------
@@ -1631,7 +1586,6 @@ void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int
 #define FWD_CMD_READ 0x9
 #define FWD_CMD_DISABLE 0x5
 
-
 uint8_t forwardLink_data[64]; //array of forwarded bits
 uint8_t * forward_ptr; //ptr for forward message preparation
 uint8_t fwd_bit_sz; //forwardlink bit counter
@@ -1641,9 +1595,7 @@ uint8_t * fwd_write_ptr; //forwardlink bit pointer
 // prepares command bits
 // see EM4469 spec
 //====================================================================
-//--------------------------------------------------------------------
 uint8_t Prepare_Cmd( uint8_t cmd ) {
-       //--------------------------------------------------------------------
 
        *forward_ptr++ = 0; //start bit
        *forward_ptr++ = 0; //second pause for 4050 code
@@ -1663,10 +1615,7 @@ uint8_t Prepare_Cmd( uint8_t cmd ) {
 // prepares address bits
 // see EM4469 spec
 //====================================================================
-
-//--------------------------------------------------------------------
 uint8_t Prepare_Addr( uint8_t addr ) {
-       //--------------------------------------------------------------------
 
        register uint8_t line_parity;
 
@@ -1687,10 +1636,7 @@ uint8_t Prepare_Addr( uint8_t addr ) {
 // prepares data bits intreleaved with parity bits
 // see EM4469 spec
 //====================================================================
-
-//--------------------------------------------------------------------
 uint8_t Prepare_Data( uint16_t data_low, uint16_t data_hi) {
-       //--------------------------------------------------------------------
 
        register uint8_t line_parity;
        register uint8_t column_parity;
@@ -1734,21 +1680,14 @@ void SendForward(uint8_t fwd_bit_count) {
 
        LED_D_ON();
 
-       //Field on
-       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-
-       // Give it a bit of time for the resonant antenna to settle.
-       // And for the tag to fully power up
-       SpinDelay(150);
-
+       // Set up FPGA, 125kHz
+       LFSetupFPGAForADC(95, true);
+       
        // force 1st mod pulse (start gap must be longer for 4305)
        fwd_bit_sz--; //prepare next bit modulation
        fwd_write_ptr++;
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
        SpinDelayUs(55*8); //55 cycles off (8us each)for 4305
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
        SpinDelayUs(16*8); //16 cycles on (8us each)
 
@@ -1760,7 +1699,6 @@ void SendForward(uint8_t fwd_bit_count) {
                        //These timings work for 4469/4269/4305 (with the 55*8 above)
                        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
                        SpinDelayUs(23*8); //16-4 cycles off (8us each)
-                       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
                        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
                        SpinDelayUs(9*8); //16 cycles on (8us each)
                }
@@ -1779,7 +1717,6 @@ void EM4xLogin(uint32_t Password) {
 
        //Wait for command to complete
        SpinDelay(20);
-
 }
 
 void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
@@ -1819,9 +1756,9 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
                        if (i >= bufferlength) break;
                }
        }
-  
+
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off    
        cmd_send(CMD_ACK,0,0,0,0,0);
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
        LED_D_OFF();
 }
 
@@ -1845,13 +1782,15 @@ void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode
        LED_D_OFF();
 }
 
-void CopyViKingtoT55x7(uint32_t block1,uint32_t block2) {
+void CopyViKingtoT55x7(uint32_t block1, uint32_t block2) {
     LED_D_ON();
     T55xxWriteBlock(block1,1,0,0);
     T55xxWriteBlock(block2,2,0,0);
-
     T55xxWriteBlock(T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | 2 << T5555_MAXBLOCK_SHIFT,0,0,1);
+       // ICEMAN NOTES:
+       // Shouldn't this one be: T55x7_MAXBLOCK_SHIFT  and 0 in password mode
+       // like this:
+       // T55xxWriteBlock(T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | 2 << T55x7_MAXBLOCK_SHIFT,0,0,0);
     LED_D_OFF();
-    DbpString("DONE!");
 }
 
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