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Diffstat (limited to 'src/pdch.h')
| -rw-r--r-- | src/pdch.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/pdch.h b/src/pdch.h new file mode 100644 index 00000000..cf9804d0 --- /dev/null +++ b/src/pdch.h @@ -0,0 +1,147 @@ +/* pdch.h + * + * Copyright (C) 2012 Ivan Klyuchnikov + * Copyright (C) 2013 by Holger Hans Peter Freyther + * Copyright (C) 2018 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> + * + * 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 + +#ifdef __cplusplus +extern "C" { +#include <osmocom/core/linuxlist.h> +} + +#include <gsm_rlcmac.h> +#include <gprs_coding_scheme.h> +#include <bts.h> +#endif + +#include <tbf.h> + +#include <stdint.h> + +/* + * PDCH instance + */ +struct gprs_rlcmac_pdch { +#ifdef __cplusplus + struct gprs_rlcmac_paging *dequeue_paging(); + struct msgb *packet_paging_request(); + + bool add_paging(uint8_t chan_needed, uint8_t *identity_lv); + + void free_resources(); + + bool is_enabled() const; + + void enable(); + void disable(); + + /* dispatching of messages */ + int rcv_block(uint8_t *data, uint8_t len, uint32_t fn, + struct pcu_l1_meas *meas); + int rcv_block_gprs(uint8_t *data, uint8_t data_len, uint32_t fn, + struct pcu_l1_meas *meas, GprsCodingScheme cs); + int rcv_data_block(uint8_t *data, uint8_t data_len, uint32_t fn, + struct pcu_l1_meas *meas, GprsCodingScheme cs); + + gprs_rlcmac_bts *bts_data() const; + BTS *bts() const; + uint8_t trx_no() const; + + struct gprs_rlcmac_ul_tbf *ul_tbf_by_tfi(uint8_t tfi); + struct gprs_rlcmac_dl_tbf *dl_tbf_by_tfi(uint8_t tfi); + + void attach_tbf(gprs_rlcmac_tbf *tbf); + void detach_tbf(gprs_rlcmac_tbf *tbf); + + unsigned num_tbfs(enum gprs_rlcmac_tbf_direction dir) const; + + void reserve(enum gprs_rlcmac_tbf_direction dir); + void unreserve(enum gprs_rlcmac_tbf_direction dir); + unsigned num_reserved(enum gprs_rlcmac_tbf_direction dir) const; + + uint8_t assigned_usf() const; + uint32_t assigned_tfi(enum gprs_rlcmac_tbf_direction dir) const; +#endif + + uint8_t m_is_enabled; /* TS is enabled */ + uint8_t tsc; /* TSC of this slot */ + uint8_t next_ul_tfi; /* next uplink TBF/TFI to schedule (0..31) */ + uint8_t next_dl_tfi; /* next downlink TBF/TFI to schedule (0..31) */ + uint8_t next_ctrl_prio; /* next kind of ctrl message to schedule */ + struct llist_head paging_list; /* list of paging messages */ + uint32_t last_rts_fn; /* store last frame number of RTS */ + + /* back pointers */ + struct gprs_rlcmac_trx *trx; + uint8_t ts_no; + +#ifdef __cplusplus +private: + int rcv_control_block(const uint8_t *data, uint8_t data_len, bitvec *rlc_block, uint32_t fn); + + void rcv_control_ack(Packet_Control_Acknowledgement_t *, uint32_t fn); + void rcv_control_dl_ack_nack(Packet_Downlink_Ack_Nack_t *, uint32_t fn); + void rcv_control_egprs_dl_ack_nack(EGPRS_PD_AckNack_t *, uint32_t fn); + void rcv_resource_request(Packet_Resource_Request_t *t, uint32_t fn); + void rcv_measurement_report(Packet_Measurement_Report_t *t, uint32_t fn); + gprs_rlcmac_tbf *tbf_from_list_by_tfi( + LListHead<gprs_rlcmac_tbf> *tbf_list, uint8_t tfi, + enum gprs_rlcmac_tbf_direction dir); + gprs_rlcmac_tbf *tbf_by_tfi(uint8_t tfi, + enum gprs_rlcmac_tbf_direction dir); +#endif + + uint8_t m_num_tbfs[2]; + uint8_t m_num_reserved[2]; + uint8_t m_assigned_usf; /* bit set */ + uint32_t m_assigned_tfi[2]; /* bit set */ + struct gprs_rlcmac_tbf *m_tbfs[2][32]; +}; + +#ifdef __cplusplus + +inline unsigned gprs_rlcmac_pdch::num_tbfs(enum gprs_rlcmac_tbf_direction dir) const +{ + return m_num_tbfs[dir]; +} + +inline unsigned gprs_rlcmac_pdch::num_reserved( + enum gprs_rlcmac_tbf_direction dir) const +{ + return gprs_rlcmac_pdch::m_num_reserved[dir]; +} + +inline uint8_t gprs_rlcmac_pdch::assigned_usf() const +{ + return m_assigned_usf; +} + +inline uint32_t gprs_rlcmac_pdch::assigned_tfi( + enum gprs_rlcmac_tbf_direction dir) const +{ + return m_assigned_tfi[dir]; +} + +inline bool gprs_rlcmac_pdch::is_enabled() const +{ + return m_is_enabled; +} + +#endif /* __cplusplus */ |