diff options
author | Harald Welte <laforge@gnumonks.org> | 2012-06-14 20:48:19 +0800 |
---|---|---|
committer | Harald Welte <laforge@gnumonks.org> | 2012-06-14 20:48:42 +0800 |
commit | c5187a1824b61add1cd216ef5c432d8abaab1222 (patch) | |
tree | c197bc24e9eae4f8d66a8c65d5102be9aca6b4ef /src/gprs_rlcmac.h | |
parent | 634771173648acd39c44280e673563a53381b2f7 (diff) |
move everything to src/ subdirectory
The code corresponds to commit a9aa4777cc1144897a77dfb6c5c3d7325705251e
in openbts-p2.8.git (Tue Jun 12 18:14:49 2012 +0400)
Diffstat (limited to 'src/gprs_rlcmac.h')
-rw-r--r-- | src/gprs_rlcmac.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/gprs_rlcmac.h b/src/gprs_rlcmac.h new file mode 100644 index 00000000..eb651c61 --- /dev/null +++ b/src/gprs_rlcmac.h @@ -0,0 +1,108 @@ +/* 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> +#include <gsm_timer.h> + +extern "C" { +#include <osmocom/core/linuxlist.h> +#include <osmocom/core/timer.h> +} + +#define LLC_MAX_LEN 1543 +#define UL_RLC_DATA_BLOCK_LEN 23 + +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[LLC_MAX_LEN]; + uint16_t data_index; + uint8_t bsn; + + struct osmo_timer_list timer; + unsigned int T; /* Txxxx number */ + unsigned int num_T_exp; /* number of consecutive T expirations */ + + struct osmo_gsm_timer_list gsm_timer; + unsigned int fT; /* fTxxxx number */ + unsigned int num_fT_exp; /* number of consecutive fT expirations */ +}; + +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(bitvec *rlc_block); + +int gprs_rlcmac_rcv_control_block(bitvec *rlc_block); + +void gprs_rlcmac_rcv_block(bitvec *rlc_block); + +int gprs_rlcmac_rcv_rach(uint8_t ra, uint32_t Fn, uint16_t ta); + +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); + +void gprs_rlcmac_packet_downlink_assignment(gprs_rlcmac_tbf *tbf); + + +#endif // GPRS_RLCMAC_H |