91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/* gprs_rlcmac.h
|
|
*
|
|
* Copyright (C) 2012 Ivan Klyuchnikov
|
|
*
|
|
* 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
|
|
|
|
#include <BitVector.h>
|
|
#include <gsm_rlcmac.h>
|
|
|
|
extern "C" {
|
|
#include <osmocom/core/linuxlist.h>
|
|
}
|
|
|
|
enum gprs_rlcmac_tbf_state {
|
|
GPRS_RLCMAC_WAIT_DATA_SEQ_START,
|
|
GPRS_RLCMAC_WAIT_NEXT_DATA_BLOCK,
|
|
GPRS_RLCMAC_WAIT_NEXT_DATA_SEQ
|
|
};
|
|
|
|
enum gprs_rlcmac_tbf_direction {
|
|
GPRS_RLCMAC_DL_TBF,
|
|
GPRS_RLCMAC_UL_TBF
|
|
};
|
|
|
|
struct gprs_rlcmac_tbf {
|
|
struct llist_head list;
|
|
enum gprs_rlcmac_tbf_state state;
|
|
enum gprs_rlcmac_tbf_direction direction;
|
|
uint8_t tfi;
|
|
uint32_t tlli;
|
|
uint8_t rlc_data[60];
|
|
uint16_t data_index;
|
|
uint8_t bsn;
|
|
};
|
|
|
|
extern struct llist_head gprs_rlcmac_tbfs;
|
|
|
|
int tfi_alloc();
|
|
|
|
struct gprs_rlcmac_tbf *tbf_alloc(uint8_t tfi);
|
|
|
|
static struct gprs_rlcmac_tbf *tbf_by_tfi(uint8_t tfi);
|
|
|
|
static struct gprs_rlcmac_tbf *tbf_by_tlli(uint8_t tlli);
|
|
|
|
static void tbf_free(struct gprs_rlcmac_tbf *tbf);
|
|
|
|
/* 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
|
|
};
|
|
|
|
void gprs_rlcmac_tx_ul_ack(uint8_t tfi, uint32_t tlli, RlcMacUplinkDataBlock_t * ul_data_block);
|
|
|
|
void gprs_rlcmac_data_block_parse(gprs_rlcmac_tbf* tbf, RlcMacUplinkDataBlock_t * ul_data_block);
|
|
|
|
int gprs_rlcmac_rcv_data_block(BitVector *rlc_block);
|
|
|
|
int gprs_rlcmac_rcv_control_block(BitVector *rlc_block);
|
|
|
|
void gprs_rlcmac_rcv_block(BitVector *rlc_block);
|
|
|
|
void gprs_rlcmac_tx_dl_data_block(uint32_t tlli, uint8_t tfi, uint8_t *pdu, int start_index, int end_index, uint8_t bsn, uint8_t fbi);
|
|
|
|
int gprs_rlcmac_segment_llc_pdu(struct gprs_rlcmac_tbf *tbf);
|
|
|
|
void gprs_rlcmac_tx_ul_ud(gprs_rlcmac_tbf *tbf);
|
|
|
|
void gprs_rlcmac_downlink_assignment(gprs_rlcmac_tbf *tbf);
|
|
|
|
#endif // GPRS_RLCMAC_H
|