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#ifndef OPENBSC_LAPD_H
#define OPENBSC_LAPD_H
#include <stdint.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/gsm/lapd_core.h>
enum lapd_profile {
LAPD_PROFILE_ISDN,
LAPD_PROFILE_ABIS,
LAPD_PROFILE_ASAT,
};
struct lapd_instance {
struct llist_head list; /* list of LAPD instances */
int network_side;
void (*transmit_cb)(struct msgb *msg, void *cbdata);
void *transmit_cbdata;
void (*receive_cb)(struct osmo_dlsap_prim *odp, uint8_t tei,
uint8_t sapi, void *rx_cbdata);
void *receive_cbdata;
enum lapd_profile profile;
uint8_t short_address;
struct llist_head tei_list; /* list of TEI in this LAPD instance */
};
enum lapd_recv_errors {
LAPD_ERR_NONE = 0,
LAPD_ERR_BAD_LEN,
LAPD_ERR_BAD_ADDR,
LAPD_ERR_UNKNOWN_S_CMD,
LAPD_ERR_UNKNOWN_U_CMD,
LAPD_ERR_UNKNOWN_TEI,
LAPD_ERR_BAD_CMD,
LAPD_ERR_NO_MEM,
__LAPD_ERR_MAX
};
int lapd_receive(struct lapd_instance *li, struct msgb *msg, int *error);
void lapd_transmit(struct lapd_instance *li, uint8_t tei, uint8_t sapi,
struct msgb *msg);
struct lapd_instance *lapd_instance_alloc(int network_side,
void (*tx_cb)(struct msgb *msg, void *cbdata), void *tx_cbdata,
void (*rx_cb)(struct osmo_dlsap_prim *odp, uint8_t tei, uint8_t sapi,
void *rx_cbdata), void *rx_cbdata,
enum lapd_profile profile);
void lapd_instance_free(struct lapd_instance *li);
/* Start a (user-side) SAP for the specified TEI/SAPI on the LAPD instance */
int lapd_sap_start(struct lapd_instance *li, uint8_t tei, uint8_t sapi);
/* Stop a (user-side) SAP for the specified TEI/SAPI on the LAPD instance */
int lapd_sap_stop(struct lapd_instance *li, uint8_t tei, uint8_t sapi);
#endif /* OPENBSC_LAPD_H */
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