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-rw-r--r--src/shared/libosmocore/include/osmocom/gsm/lapd_core.h171
1 files changed, 0 insertions, 171 deletions
diff --git a/src/shared/libosmocore/include/osmocom/gsm/lapd_core.h b/src/shared/libosmocore/include/osmocom/gsm/lapd_core.h
deleted file mode 100644
index 0f4e8899..00000000
--- a/src/shared/libosmocore/include/osmocom/gsm/lapd_core.h
+++ /dev/null
@@ -1,171 +0,0 @@
-#ifndef _OSMOCOM_LAPD_H
-#define _OSMOCOM_LAPD_H
-
-#include <stdint.h>
-
-#include <osmocom/core/timer.h>
-#include <osmocom/core/msgb.h>
-#include <osmocom/gsm/prim.h>
-
-/*! \defgroup lapd LAPD implementation common part
- * @{
- */
-
-/*! \file lapd.h */
-
-/* primitive related sutff */
-
-/*! \brief LAPD related primitives (L2<->L3 SAP)*/
-enum osmo_dl_prim {
- PRIM_DL_UNIT_DATA, /*!< \brief DL-UNIT-DATA */
- PRIM_DL_DATA, /*!< \brief DL-DATA */
- PRIM_DL_EST, /*!< \brief DL-ESTABLISH */
- PRIM_DL_REL, /*!< \brief DL-RLEEASE */
- PRIM_DL_SUSP, /*!< \brief DL-SUSPEND */
- PRIM_DL_RES, /*!< \brief DL-RESUME */
- PRIM_DL_RECON, /*!< \brief DL-RECONNECT */
- PRIM_MDL_ERROR, /*!< \brief MDL-ERROR */
-};
-
-/* Uses the same values as RLL, so no conversion for GSM is required. */
-#define MDL_CAUSE_T200_EXPIRED 0x01
-#define MDL_CAUSE_REEST_REQ 0x02
-#define MDL_CAUSE_UNSOL_UA_RESP 0x03
-#define MDL_CAUSE_UNSOL_DM_RESP 0x04
-#define MDL_CAUSE_UNSOL_DM_RESP_MF 0x05
-#define MDL_CAUSE_UNSOL_SPRV_RESP 0x06
-#define MDL_CAUSE_SEQ_ERR 0x07
-#define MDL_CAUSE_UFRM_INC_PARAM 0x08
-#define MDL_CAUSE_SFRM_INC_PARAM 0x09
-#define MDL_CAUSE_IFRM_INC_MBITS 0x0a
-#define MDL_CAUSE_IFRM_INC_LEN 0x0b
-#define MDL_CAUSE_FRM_UNIMPL 0x0c
-#define MDL_CAUSE_SABM_MF 0x0d
-#define MDL_CAUSE_SABM_INFO_NOTALL 0x0e
-#define MDL_CAUSE_FRMR 0x0f
-
-/*! \brief for MDL-ERROR.ind */
-struct mdl_error_ind_param {
- uint8_t cause; /*!< \brief generic cause value */
-};
-
-/*! \brief for DL-REL.req */
-struct dl_rel_req_param {
- uint8_t mode; /*!< \brief release mode */
-};
-
-/*! \brief primitive header for LAPD DL-SAP primitives */
-struct osmo_dlsap_prim {
- struct osmo_prim_hdr oph; /*!< \brief generic primitive header */
- union {
- struct mdl_error_ind_param error_ind;
- struct dl_rel_req_param rel_req;
- } u; /*!< \brief request-specific data */
-};
-
-/*! \brief LAPD mode/role */
-enum lapd_mode {
- LAPD_MODE_USER, /*!< \brief behave like user */
- LAPD_MODE_NETWORK, /*!< \brief behave like network */
-};
-
-/*! \brief LAPD state (Figure B.2/Q.921)*/
-enum lapd_state {
- LAPD_STATE_NULL = 0,
- LAPD_STATE_TEI_UNASS,
- LAPD_STATE_ASS_TEI_WAIT,
- LAPD_STATE_EST_TEI_WAIT,
- LAPD_STATE_IDLE,
- LAPD_STATE_SABM_SENT,
- LAPD_STATE_DISC_SENT,
- LAPD_STATE_MF_EST,
- LAPD_STATE_TIMER_RECOV,
-};
-
-/*! \brief LAPD message format (I / S / U) */
-enum lapd_format {
- LAPD_FORM_UKN = 0,
- LAPD_FORM_I,
- LAPD_FORM_S,
- LAPD_FORM_U,
-};
-
-/*! \brief LAPD message context */
-struct lapd_msg_ctx {
- struct lapd_datalink *dl;
- int n201;
- /* address */
- uint8_t cr;
- uint8_t sapi;
- uint8_t tei;
- uint8_t lpd;
- /* control */
- uint8_t format;
- uint8_t p_f; /* poll / final bit */
- uint8_t n_send;
- uint8_t n_recv;
- uint8_t s_u; /* S or repectivly U function bits */
- /* length */
- int length;
- uint8_t more;
-};
-
-struct lapd_cr_ent {
- uint8_t cmd;
- uint8_t resp;
-};
-
-struct lapd_history {
- struct msgb *msg; /* message to be sent / NULL, if histoy is empty */
- int more; /* if message is fragmented */
-};
-
-/*! \brief LAPD datalink */
-struct lapd_datalink {
- int (*send_dlsap)(struct osmo_dlsap_prim *dp,
- struct lapd_msg_ctx *lctx);
- int (*send_ph_data_req)(struct lapd_msg_ctx *lctx, struct msgb *msg);
- struct {
- /*! \brief filled-in once we set the lapd_mode above */
- struct lapd_cr_ent loc2rem;
- struct lapd_cr_ent rem2loc;
- } cr;
- enum lapd_mode mode; /*!< \brief current mode of link */
- int use_sabme; /*!< \brief use SABME instead of SABM */
- int reestablish; /*!< \brief enable reestablish support */
- int n200, n200_est_rel; /*!< \brief number of retranmissions */
- struct lapd_msg_ctx lctx; /*!< \brief LAPD context */
- int maxf; /*!< \brief maximum frame size (after defragmentation) */
- uint8_t k; /*!< \brief maximum number of unacknowledged frames */
- uint8_t v_range; /*!< \brief range of sequence numbers */
- uint8_t v_send; /*!< \brief seq nr of next I frame to be transmitted */
- uint8_t v_ack; /*!< \brief last frame ACKed by peer */
- uint8_t v_recv; /*!< \brief seq nr of next I frame expected to be received */
- uint32_t state; /*!< \brief LAPD state (\ref lapd_state) */
- int seq_err_cond; /*!< \brief condition of sequence error */
- uint8_t own_busy; /*!< \brief receiver busy on our side */
- uint8_t peer_busy; /*!< \brief receiver busy on remote side */
- int t200_sec, t200_usec; /*!< \brief retry timer (default 1 sec) */
- int t203_sec, t203_usec; /*!< \brief retry timer (default 10 secs) */
- struct osmo_timer_list t200; /*!< \brief T200 timer */
- struct osmo_timer_list t203; /*!< \brief T203 timer */
- uint8_t retrans_ctr; /*!< \brief re-transmission counter */
- struct llist_head tx_queue; /*!< \brief frames to L1 */
- struct llist_head send_queue; /*!< \brief frames from L3 */
- struct msgb *send_buffer; /*!< \brief current frame transmitting */
- int send_out; /*!< \brief how much was sent from send_buffer */
- struct lapd_history *tx_hist; /*!< \brief tx history structure array */
- uint8_t range_hist; /*!< \brief range of history buffer 2..2^n */
- struct msgb *rcv_buffer; /*!< \brief buffer to assemble the received message */
- struct msgb *cont_res; /*!< \brief buffer to store content resolution data on network side, to detect multiple phones on same channel */
-};
-
-void lapd_dl_init(struct lapd_datalink *dl, uint8_t k, uint8_t v_range,
- int maxf);
-void lapd_dl_exit(struct lapd_datalink *dl);
-void lapd_dl_reset(struct lapd_datalink *dl);
-int lapd_set_mode(struct lapd_datalink *dl, enum lapd_mode mode);
-int lapd_ph_data_ind(struct msgb *msg, struct lapd_msg_ctx *lctx);
-int lapd_recv_dlsap(struct osmo_dlsap_prim *dp, struct lapd_msg_ctx *lctx);
-
-#endif /* _OSMOCOM_LAPD_H */