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/* gprs_rlcmac.h
*
* Copyright (C) 2012 Ivan Klyuchnikov
* Copyright (C) 2013 by Holger Hans Peter Freyther
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef GPRS_RLCMAC_H
#define GPRS_RLCMAC_H
#ifdef __cplusplus
#include <bitvector.h>
#include <gsm_rlcmac.h>
#include <gsm_timer.h>
extern "C" {
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/timer.h>
}
#endif
/* generate a diagram for debugging timing issues */
//#define DEBUG_DIAGRAM
/* This special feature will delay assignment of downlink TBF by one second,
* in case there is already a TBF.
* This is usefull to debug downlink establishment during packet idle mode.
*/
//#define DEBUG_DL_ASS_IDLE
struct gprs_rlcmac_tbf;
struct gprs_rlcmac_bts;
#ifdef __cplusplus
/*
* paging entry
*/
struct gprs_rlcmac_paging {
struct llist_head list;
uint8_t chan_needed;
uint8_t identity_lv[9];
};
/*
* single block allocation entry
*/
struct gprs_rlcmac_sba {
struct llist_head list;
uint8_t trx;
uint8_t ts;
uint32_t fn;
uint8_t ta;
};
/*
* coding scheme info
*/
struct gprs_rlcmac_cs {
uint8_t block_length;
uint8_t block_data;
uint8_t block_payload;
};
extern struct gprs_rlcmac_cs gprs_rlcmac_cs[];
#ifdef DEBUG_DIAGRAM
void debug_diagram(int diag, const char *format, ...);
#else
#define debug_diagram(a, b, args...) ;
#endif
int gprs_rlcmac_received_lost(struct gprs_rlcmac_tbf *tbf, uint16_t received,
uint16_t lost);
int gprs_rlcmac_lost_rep(struct gprs_rlcmac_tbf *tbf);
int gprs_rlcmac_meas_rep(Packet_Measurement_Report_t *pmr);
int gprs_rlcmac_rssi(struct gprs_rlcmac_tbf *tbf, int8_t rssi);
int gprs_rlcmac_rssi_rep(struct gprs_rlcmac_tbf *tbf);
int gprs_rlcmac_dl_bw(struct gprs_rlcmac_tbf *tbf, uint16_t octets);
int sba_alloc(struct gprs_rlcmac_bts *bts, uint8_t *_trx, uint8_t *_ts, uint32_t *_fn, uint8_t ta);
struct gprs_rlcmac_sba *sba_find(uint8_t trx, uint8_t ts, uint32_t fn);
/* TS 44.060 Section 10.4.7 Table 10.4.7.1: Payload Type field */
enum gprs_rlcmac_block_type {
GPRS_RLCMAC_DATA_BLOCK = 0x0,
GPRS_RLCMAC_CONTROL_BLOCK = 0x1,
GPRS_RLCMAC_CONTROL_BLOCK_OPT = 0x2,
GPRS_RLCMAC_RESERVED = 0x3
};
int gprs_rlcmac_rcv_block(struct gprs_rlcmac_bts *bts,
uint8_t trx, uint8_t ts, uint8_t *data, uint8_t len,
uint32_t fn, int8_t rssi);
int gprs_rlcmac_tx_ul_ud(gprs_rlcmac_tbf *tbf);
int gprs_rlcmac_poll_timeout(struct gprs_rlcmac_bts *bts, struct gprs_rlcmac_tbf *tbf);
int gprs_rlcmac_sba_timeout(struct gprs_rlcmac_sba *sba);
int gprs_rlcmac_rcv_rach(struct gprs_rlcmac_bts *bts, uint8_t ra, uint32_t Fn, int16_t qta);
int gprs_rlcmac_rcv_control_block(struct gprs_rlcmac_bts *bts,
bitvec *rlc_block, uint8_t trx, uint8_t ts,
uint32_t fn);
struct msgb *gprs_rlcmac_send_packet_uplink_assignment(
struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *tbf, uint32_t fn);
struct msgb *gprs_rlcmac_send_packet_downlink_assignment(
struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *tbf, uint32_t fn);
void gprs_rlcmac_trigger_downlink_assignment(struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *tbf,
struct gprs_rlcmac_tbf *old_tbf, const char *imsi);
int gprs_rlcmac_downlink_ack(struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *tbf, uint8_t final,
uint8_t ssn, uint8_t *rbb);
int gprs_rlcmac_paging_request(uint8_t *ptmsi, uint16_t ptmsi_len,
const char *imsi);
int gprs_rlcmac_rcv_data_block_acknowledged(struct gprs_rlcmac_bts *bts,
uint8_t trx, uint8_t ts,
uint8_t *data, uint8_t len, int8_t rssi);
struct msgb *gprs_rlcmac_send_data_block_acknowledged(
struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *tbf, uint32_t fn, uint8_t ts);
struct msgb *gprs_rlcmac_send_uplink_ack(struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *tbf,
uint32_t fn);
int gprs_rlcmac_rcv_rts_block(struct gprs_rlcmac_bts *bts,
uint8_t trx, uint8_t ts, uint16_t arfcn,
uint32_t fn, uint8_t block_nr);
int gprs_rlcmac_imm_ass_cnf(uint8_t *data, uint32_t fn);
extern "C" {
#endif
int alloc_algorithm_a(struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *old_tbf,
struct gprs_rlcmac_tbf *tbf, uint32_t cust, uint8_t single);
int alloc_algorithm_b(struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_tbf *old_tbf,
struct gprs_rlcmac_tbf *tbf, uint32_t cust, uint8_t single);
#ifdef __cplusplus
}
#endif
#endif // GPRS_RLCMAC_H
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