From 59ea3a8a82e6f166b80fc489945c43fdc8764ea0 Mon Sep 17 00:00:00 2001 From: Piotr Krysik Date: Mon, 20 Apr 2009 19:56:50 +0200 Subject: added non-traced files --- src/lib/gsm_constants.h | 94 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 src/lib/gsm_constants.h (limited to 'src/lib/gsm_constants.h') diff --git a/src/lib/gsm_constants.h b/src/lib/gsm_constants.h new file mode 100644 index 0000000..01dfb22 --- /dev/null +++ b/src/lib/gsm_constants.h @@ -0,0 +1,94 @@ +#ifndef INCLUDED_GSM_CONSTANTS_H +#define INCLUDED_GSM_CONSTANTS_H + +#define GSM_SYMBOL_RATE (1625000.0/6.0) //symbols per second +#define GSM_SYMBOL_PERIOD (1.0/GSM_SYMBOL_RATE) //seconds per symbol + +//Burst timing +#define TAIL_BITS 3 +#define GUARD_BITS 8 //8.25 +#define DATA_BITS 58 //size of 1 data block in normal burst +#define N_TRAIN_BITS 26 +#define N_SYNC_BITS 64 +#define USEFUL_BITS 142 //(2*DATA_BITS + N_TRAIN_BITS ) +#define FCCH_BITS USEFUL_BITS + +#define TS_BITS (TAIL_BITS+USEFUL_BITS+TAIL_BITS+GUARD_BITS) //a full TS (156) +#define TS_PER_FRAME 8 +#define FRAME_BITS (TS_PER_FRAME * TS_BITS + 2) // +2 for extra 8*0.25 guard bits +#define FCCH_POS TAIL_BITS +#define SYNC_POS 39 +#define TRAIN_POS 58 + +#define FCCH_HITS_NEEDED (USEFUL_BITS - 4) +#define FCCH_MAX_MISSES 2 + +static const int SYNC_BITS[] = { + 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, + 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, + 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, + 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1 +}; + +// Sync : .+...++.+..+++.++++++.++++++....++.+..+.+.+++.+.+...+..++++..+.. +// Diff Encoded Sync: .++..+.+++.+..++.....++.....+...+.+++.+++++..+++++..++.+...+.++. + +#define TSC0 0 +#define TSC1 1 +#define TSC2 2 +#define TSC3 3 +#define TSC4 4 +#define TSC5 5 +#define TSC6 6 +#define TSC7 7 +#define TS_FCCH 8 +#define TS_DUMMY 9 + +static const unsigned char train_seq[10][N_TRAIN_BITS] = { + {0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1}, + {0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1}, + {0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0}, + {0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0}, + {0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1}, + {0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0}, + {1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1}, + {1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0}, + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, //#9 FCCH ;-) + {0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1} // DUMMY +}; + +//Dummy burst 0xFB 76 0A 4E 09 10 1F 1C 5C 5C 57 4A 33 39 E9 F1 2F A8 +static const unsigned char dummy_burst[] = { + 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, + 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, + 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, + 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, + 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, + 0, 1, 1, 1, 1, 1, 0, 0, + + 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, + 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, + 0, 0, 0, 1, 0, 1, + + 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, + 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, + 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, + 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, + 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, + 1, 1, 1, 0, 1, 0, 1, 0 +}; + +//Diff encoded train_seq +//TSC0: +.++.+++..+...++..++.+++.. +//TSC1: +.+++.++..++...+..++.+++.. +//TSC2: +++...+..++..+++.++...+..+ +//TSC3: +++..+...++.+++..++..+...+ +//TSC4: +..+.++++..+.++....+.++++. +//TSC5: +++.+..++++.+....++.+..+++ +//TSC6: .+++.+....++.+..++++.+.... +//TSC7: ...++...+..++.+++..++...+. +//TSC8: .......................... +//TSC9: ++..+..+++..+..+++..+..+++ + + +#endif /* INCLUDED_GSM_CONSTANTS_H */ -- cgit v1.2.3