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//TODO: this file shouldn't be part of the GSM Receiver
#ifndef __GSMSTACK_H__
#define __GSMSTACK_H__ 1
#ifdef __cplusplus
extern "C" {
#endif
#include <linux/if_ether.h>
#include "interleave.h"
enum BURST_TYPE {
UNKNOWN = 0,
FCCH,
PARTIAL_SCH, //successful correlation, but missing data ^
SCH,
CTS_SCH,
COMPACT_SCH,
NORMAL,
DUMMY,
ACCESS
};
enum TIMESLOT_TYPE {
TST_UNKNOWN = 0,
TST_OFF, /* timeslot is not decoded */
TST_FCCH_SCH_BCCH_CCCH_SDCCH4,
TST_FCCH_SCH_BCCH_CCCH,
TST_SDCCH8,
TST_TCHF
};
struct gs_ts_ctx {
/* FIXME: later do this per each ts per each arfcn */
unsigned char burst[4 * 58 * 2];
unsigned char burst2[8 * 58 * 2]; /* buffer for FACCH on TCH */
int burst_count;
int burst_count2; /* counter for FACCH on TCH */
enum TIMESLOT_TYPE type;
};
typedef struct
{
int flags;
int fn;
int bsic;
char msg[23]; /* last decoded message */
INTERLEAVE_CTX interleave_ctx;
INTERLEAVE_CTX interleave_facch_f1_ctx;
INTERLEAVE_CTX interleave_facch_f2_ctx;
struct gs_ts_ctx ts_ctx[8];
int tun_fd;
unsigned char ether_addr[ETH_ALEN];
int gsmtap_fd;
} GS_CTX;
int GS_new(GS_CTX *ctx);
int GS_process(GS_CTX *ctx, int ts, int type, const unsigned char *src, int fn, int first_burst);
#ifdef __cplusplus
}
#endif
#endif
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