diff options
Diffstat (limited to 'gprs_rlcmac.h')
-rw-r--r-- | gprs_rlcmac.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/gprs_rlcmac.h b/gprs_rlcmac.h new file mode 100644 index 00000000..c67363c9 --- /dev/null +++ b/gprs_rlcmac.h @@ -0,0 +1,88 @@ +/* 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 *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); + +#endif // GPRS_RLCMAC_H |