X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/117d9ec25c7cbc88555a6a990293ca95a544b915..cb832982c9402c6773d2fbef5b4d1679d8286163:/armsrc/iso15693.c?ds=sidebyside diff --git a/armsrc/iso15693.c b/armsrc/iso15693.c index 94040a85..e65e7958 100644 --- a/armsrc/iso15693.c +++ b/armsrc/iso15693.c @@ -295,21 +295,19 @@ static void TransmitTo15693Reader(const uint8_t *cmd, int len, int *samples, int // number of decoded bytes static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) { - int c = 0; uint8_t *dest = BigBuf_get_addr(); - int getNext = 0; + int c = 0; + int getNext = FALSE; int8_t prev = 0; -// NOW READ RESPONSE FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); - //spindelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads - c = 0; - getNext = FALSE; + SpinDelay(100); // greg - experiment to get rid of some of the 0 byte/failed reads + for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) AT91C_BASE_SSC->SSC_THR = 0x43; - } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { int8_t b; b = (int8_t)AT91C_BASE_SSC->SSC_RHR; @@ -319,18 +317,7 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r; - - if(b < 0) { - r = -b; - } else { - r = b; - } - if(prev < 0) { - r -= prev; - } else { - r += prev; - } + int8_t r = ABS(b) + ABS(prev); dest[c++] = (uint8_t)r; @@ -437,29 +424,26 @@ static int GetIso15693AnswerFromTag(uint8_t *receivedResponse, int maxLen, int * } // "end if correlation > 0" (max/(arraylen(FrameSOF)/skip)) return k; // return the number of bytes demodulated -/// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2)); - +// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2)); } // Now the GetISO15693 message from sniffing command static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) { - int c = 0; uint8_t *dest = BigBuf_get_addr(); - int getNext = 0; + int c = 0; + int getNext = FALSE; int8_t prev = 0; -// NOW READ RESPONSE FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); - //spindelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads - c = 0; - getNext = FALSE; + SpinDelay(100); // greg - experiment to get rid of some of the 0 byte/failed reads + for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) AT91C_BASE_SSC->SSC_THR = 0x43; - } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { int8_t b = (int8_t)AT91C_BASE_SSC->SSC_RHR; @@ -468,18 +452,7 @@ static int GetIso15693AnswerFromSniff(uint8_t *receivedResponse, int maxLen, int // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r; - - if(b < 0) { - r = -b; - } else { - r = b; - } - if(prev < 0) { - r -= prev; - } else { - r += prev; - } + int8_t r = ABS(b) + ABS(prev); dest[c++] = (uint8_t)r; @@ -648,18 +621,7 @@ void AcquireRawAdcSamplesIso15693(void) // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r; - - if(b < 0) { - r = -b; - } else { - r = b; - } - if(prev < 0) { - r -= prev; - } else { - r += prev; - } + int8_t r = ABS(b) + ABS(prev); dest[c++] = (uint8_t)r; @@ -689,8 +651,8 @@ void RecordRawAdcSamplesIso15693(void) FpgaSetupSsc(); // Start from off (no field generated) - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(200); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); @@ -713,18 +675,7 @@ void RecordRawAdcSamplesIso15693(void) // every other is Q. We just want power, so abs(I) + abs(Q) is // close to what we want. if(getNext) { - int8_t r; - - if(b < 0) { - r = -b; - } else { - r = b; - } - if(prev < 0) { - r -= prev; - } else { - r += prev; - } + int8_t r = ABS(b) + ABS(prev); dest[c++] = (uint8_t)r; @@ -877,12 +828,12 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) LED_C_OFF(); LED_D_OFF(); + if (init) Iso15693InitReader(); + int answerLen=0; uint8_t *answer = BigBuf_get_addr() + 3660; if (recv != NULL) memset(answer, 0, 100); - if (init) Iso15693InitReader(); - if (!speed) { // low speed (1 out of 256) CodeIso15693AsReader256(send, sendlen); @@ -903,10 +854,7 @@ int SendDataTag(uint8_t *send, int sendlen, int init, int speed, uint8_t **recv) *recv=answer; } - LED_A_OFF(); - LED_B_OFF(); - LED_C_OFF(); - LED_D_OFF(); + LEDsoff(); return answerLen; } @@ -999,10 +947,6 @@ void ReaderIso15693(uint32_t parameter) LED_C_OFF(); LED_D_OFF(); - uint8_t *answer1 = BigBuf_get_addr() + 3660; - uint8_t *answer2 = BigBuf_get_addr() + 3760; - uint8_t *answer3 = BigBuf_get_addr() + 3860; - int answerLen1 = 0; int answerLen2 = 0; int answerLen3 = 0; @@ -1013,19 +957,21 @@ void ReaderIso15693(uint32_t parameter) int elapsed = 0; uint8_t TagUID[8] = {0x00}; + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + uint8_t *answer1 = BigBuf_get_addr() + 3660; + uint8_t *answer2 = BigBuf_get_addr() + 3760; + uint8_t *answer3 = BigBuf_get_addr() + 3860; // Blank arrays memset(answer1, 0x00, 300); - FpgaDownloadAndGo(FPGA_BITSTREAM_HF); - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); // Setup SSC FpgaSetupSsc(); // Start from off (no field generated) - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(200); // Give the tags time to energize FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); @@ -1111,24 +1057,22 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) LED_C_OFF(); LED_D_OFF(); - uint8_t *buf = BigBuf_get_addr() + 3660; - int answerLen1 = 0; int samples = 0; int tsamples = 0; int wait = 0; int elapsed = 0; - memset(buf, 0x00, 100); - FpgaDownloadAndGo(FPGA_BITSTREAM_HF); - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); + uint8_t *buf = BigBuf_get_addr() + 3660; + memset(buf, 0x00, 100); + SetAdcMuxFor(GPIO_MUXSEL_HIPKD); FpgaSetupSsc(); // Start from off (no field generated) - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); SpinDelay(200); LED_A_OFF();