osmo-pcu/src/sba.h

68 lines
1.8 KiB
C++

/*
*
* Copyright (C) 2012 Ivan Klyuchnikov
* Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
* 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.
*/
#pragma once
#include <stdint.h>
extern "C" {
#include <osmocom/core/linuxlist.h>
}
struct gprs_rlcmac_bts;
struct gprs_rlcmac_pdch;
/*
* single block allocation entry
*/
struct gprs_rlcmac_sba {
struct llist_head list;
uint8_t trx_no;
uint8_t ts_no;
uint32_t fn;
uint8_t ta;
};
/**
* I help to manage SingleBlockAssignment (SBA).
*
* TODO: Add a flush method..
*/
struct SBAController {
friend class PollController;
public:
SBAController(struct gprs_rlcmac_bts &bts);
int alloc(uint8_t *_trx, uint8_t *_ts, uint32_t *_fn, uint8_t ta);
gprs_rlcmac_sba *find(uint8_t trx, uint8_t ts, uint32_t fn);
gprs_rlcmac_sba *find(const gprs_rlcmac_pdch *pdch, uint32_t fn);
uint32_t sched(uint8_t trx, uint8_t ts, uint32_t fn, uint8_t block_nr);
int timeout(struct gprs_rlcmac_sba *sba);
void free_resources(struct gprs_rlcmac_pdch *pdch);
void free_sba(gprs_rlcmac_sba *sba);
private:
struct gprs_rlcmac_bts &m_bts;
llist_head m_sbas;
};