diff options
Diffstat (limited to 'openpicc/application/iso14443a_miller.c')
-rw-r--r-- | openpicc/application/iso14443a_miller.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/openpicc/application/iso14443a_miller.c b/openpicc/application/iso14443a_miller.c index deb9a8a..3d132c2 100644 --- a/openpicc/application/iso14443a_miller.c +++ b/openpicc/application/iso14443a_miller.c @@ -55,38 +55,39 @@ int iso14443a_decode_miller(iso14443_frame *frame, enum miller_sequence current_seq; unsigned int bitpos = 0; - memset(frame, 0, sizeof(frame)); + memset(frame, 0, sizeof(*frame)); frame->type = TYPE_A; frame->parameters.a.parity = GIVEN_PARITY; for(i=0; i<sample_buf_len && bit != BIT_ENDMARKER; i++) { + DumpStringToUSB(" "); + DumpUIntToUSB(sample_buf[i]); for(j=0; j<(signed)(sizeof(sample_buf[0])*8)/OVERSAMPLING_RATE && bit != BIT_ENDMARKER; j++) { + DumpStringToUSB("."); int sample = (sample_buf[i]>>(j*OVERSAMPLING_RATE)) & ~(~0 << OVERSAMPLING_RATE); switch(sample) { - case SEQ_X: current_seq = SEQUENCE_X; break; - case SEQ_Y: current_seq = SEQUENCE_Y; break; - case SEQ_Z: current_seq = SEQUENCE_Z; break; - default: current_seq = SEQUENCE_Y; + case SEQ_X: current_seq = SEQUENCE_X; DumpStringToUSB("X"); break; + case SEQ_Y: current_seq = SEQUENCE_Y; DumpStringToUSB("Y"); break; + case SEQ_Z: current_seq = SEQUENCE_Z; DumpStringToUSB("Z"); break; + default: DumpUIntToUSB(sample); current_seq = SEQUENCE_Y; } switch(current_seq) { - case SEQ_X: - DumpStringToUSB("X"); + case SEQUENCE_X: bit = 1; break; - case SEQ_Y: /* Fall-through to SEQ_Z */ - DumpStringToUSB("Y"); + case SEQUENCE_Y: /* Fall-through to SEQUENCE_Z */ if(last_bit == 0) { bit = BIT_ENDMARKER; + DumpStringToUSB("!"); break; } - case SEQ_Z: - DumpStringToUSB("Z"); + case SEQUENCE_Z: bit = 0; break; } switch(bit) { case BIT_ENDMARKER: - bitpos--; + bitpos-=2; /* Subtract this sequence and the previous sequence (which was a 0) */ break; case 0: /* Fall-through */ case 1: { @@ -106,6 +107,11 @@ int iso14443a_decode_miller(iso14443_frame *frame, frame->numbytes = bitpos/9; frame->numbits = bitpos%9; + DumpStringToUSB(" "); + DumpUIntToUSB(frame->numbytes); + DumpStringToUSB(" bytes, "); + DumpUIntToUSB(frame->numbits); + DumpStringToUSB(" bits"); DumpStringToUSB("\n\r"); return 0; |