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#ifndef _TRANSACT_H
#define _TRANSACT_H
#include <osmocom/core/linuxlist.h>
#include <osmocom/gsm/gsm0411_smc.h>
#include <osmocom/gsm/gsm0411_smr.h>
/* One transaction */
struct gsm_trans {
/* Entry in list of all transactions */
struct llist_head entry;
/* The protocol within which we live */
uint8_t protocol;
/* The current transaction ID */
uint8_t transaction_id;
/* To whom we belong */
struct osmocom_ms *ms;
/* reference from MNCC or other application */
uint32_t callref;
/* if traffic channel receive was requested */
int tch_recv;
union {
struct {
/* current call state */
int state;
/* most recent progress indicator */
uint8_t prog_ind;
/* current timer and message queue */
int Tcurrent; /* current CC timer */
int T308_second; /* used to send release again */
struct osmo_timer_list timer;
struct gsm_mncc msg; /* stores setup/disconnect/release message */
} cc;
struct {
/* current supp.serv. state */
int state;
uint8_t invoke_id;
struct msgb *msg;
} ss;
struct {
uint8_t sapi; /* SAPI to be used for this trans */
struct gsm411_smc_inst smc_inst;
struct gsm411_smr_inst smr_inst;
struct gsm_sms *sms;
} sms;
struct {
/* VGCS/VBS state machine */
struct osmo_fsm_inst *fi;
/* Call State (See Table 9.3 of TS 144.068) */
uint8_t call_state;
/* State attributes (See Table 9.7 of TS 144.068) */
uint8_t d_att, u_att, comm, orig;
/* Channel description last received via notification */
bool ch_desc_present;
struct gsm48_chan_desc ch_desc;
/* Flag to store termination request from upper layer. */
bool termination;
/* Flag to tell the state machine that call changes from separate link to group receive mode. */
bool receive_after_sl;
} gcc;
};
};
struct gsm_trans *trans_find_by_id(struct osmocom_ms *ms,
uint8_t proto, uint8_t trans_id);
struct gsm_trans *trans_find_by_callref(struct osmocom_ms *ms, uint8_t protocol,
uint32_t callref);
struct gsm_trans *trans_alloc(struct osmocom_ms *ms,
uint8_t protocol, uint8_t trans_id,
uint32_t callref);
void trans_free(struct gsm_trans *trans);
int trans_assign_trans_id(struct osmocom_ms *ms,
uint8_t protocol, uint8_t ti_flag);
#endif
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