Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 by Holger Hans Peter Freyther |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version 2 |
| 7 | * of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #pragma once |
| 20 | |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 21 | #ifdef __cplusplus |
| 22 | |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 23 | #include <string> |
| 24 | |
Holger Hans Peter Freyther | be57081 | 2013-11-07 08:01:49 +0100 | [diff] [blame] | 25 | #include "llc.h" |
Holger Hans Peter Freyther | 6b5660c | 2013-11-23 16:10:48 +0100 | [diff] [blame] | 26 | #include "rlc.h" |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 27 | #include "cxx_linuxlist.h" |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 28 | #include "pcu_utils.h" |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 29 | #include <gprs_debug.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 30 | #include <stdint.h> |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 31 | |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 32 | struct bssgp_bvc_ctx; |
| 33 | struct gprs_rlcmac_bts; |
| 34 | |
| 35 | #endif |
| 36 | |
| 37 | struct GprsMs; |
| 38 | |
| 39 | #ifdef __cplusplus |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 40 | extern "C" { |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 41 | #endif |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 42 | #include <osmocom/core/utils.h> |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 43 | #include <osmocom/core/linuxlist.h> |
| 44 | #include <osmocom/core/logging.h> |
| 45 | #include <osmocom/core/timer.h> |
Vadim Yanitskiy | cb98894 | 2020-11-08 13:27:35 +0700 | [diff] [blame] | 46 | #include <osmocom/gsm/gsm48.h> |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 47 | |
| 48 | #include "coding_scheme.h" |
Pau Espin Pedrol | 86580e1 | 2021-03-29 18:15:30 +0200 | [diff] [blame] | 49 | #include <pdch_ul_controller.h> |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 50 | #include <tbf_fsm.h> |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 51 | #include <tbf_ul_ass_fsm.h> |
Pau Espin Pedrol | 49a2f40 | 2021-07-27 17:33:07 +0200 | [diff] [blame] | 52 | #include <tbf_dl_ass_fsm.h> |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 53 | #ifdef __cplusplus |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 54 | } |
Vadim Yanitskiy | cef2f84 | 2019-10-09 21:52:50 +0700 | [diff] [blame] | 55 | #endif |
| 56 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 57 | /* |
| 58 | * TBF instance |
| 59 | */ |
| 60 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 61 | enum gprs_rlcmac_tbf_direction { |
| 62 | GPRS_RLCMAC_DL_TBF, |
| 63 | GPRS_RLCMAC_UL_TBF |
| 64 | }; |
| 65 | |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 66 | enum tbf_rlc_counters { |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 67 | TBF_CTR_RLC_NACKED, |
| 68 | }; |
| 69 | |
| 70 | enum tbf_gprs_counters { |
| 71 | TBF_CTR_GPRS_DL_CS1, |
| 72 | TBF_CTR_GPRS_DL_CS2, |
| 73 | TBF_CTR_GPRS_DL_CS3, |
| 74 | TBF_CTR_GPRS_DL_CS4, |
| 75 | }; |
| 76 | |
| 77 | enum tbf_egprs_counters { |
| 78 | TBF_CTR_EGPRS_DL_MCS1, |
| 79 | TBF_CTR_EGPRS_DL_MCS2, |
| 80 | TBF_CTR_EGPRS_DL_MCS3, |
| 81 | TBF_CTR_EGPRS_DL_MCS4, |
| 82 | TBF_CTR_EGPRS_DL_MCS5, |
| 83 | TBF_CTR_EGPRS_DL_MCS6, |
| 84 | TBF_CTR_EGPRS_DL_MCS7, |
| 85 | TBF_CTR_EGPRS_DL_MCS8, |
| 86 | TBF_CTR_EGPRS_DL_MCS9, |
| 87 | }; |
| 88 | |
Pau Espin Pedrol | 442198c | 2020-10-23 22:30:04 +0200 | [diff] [blame] | 89 | extern const struct rate_ctr_group_desc tbf_ctrg_desc; |
| 90 | extern unsigned int next_tbf_ctr_group_id; |
| 91 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 92 | #define LOGPTBF(tbf, level, fmt, args...) LOGP(DTBF, level, "%s " fmt, tbf_name(tbf), ## args) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 93 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 94 | enum tbf_timers { |
Pau Espin Pedrol | 4b6f0bf | 2021-05-10 18:54:52 +0200 | [diff] [blame] | 95 | /* Wait contention resolution success on UL TBFs assigned over CCCH */ |
| 96 | T3141, |
| 97 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 98 | /* Wait for reuse of TFI(s) after sending of the last RLC Data Block on this TBF. |
| 99 | Wait for reuse of TFI(s) after sending the PACKET TBF RELEASE for an MBMS radio bearer. */ |
| 100 | T3191, |
| 101 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 102 | T_MAX |
| 103 | }; |
| 104 | |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 105 | enum tbf_counters { /* TBF counters from 3GPP TS 44.060 ยง13.4 */ |
| 106 | /* counters are reset when: */ |
| 107 | N3101, /* received a valid data block from mobile station in a block assigned for this USF */ |
| 108 | N3103, /* transmitting the final PACKET UPLINK ACK/NACK message */ |
| 109 | N3105, /* after sending a RRBP field in the downlink RLC data block, receives a valid RLC/MAC control message */ |
| 110 | N_MAX |
| 111 | }; |
| 112 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 113 | #define GPRS_RLCMAC_FLAG_CCCH 0 /* assignment on CCCH */ |
| 114 | #define GPRS_RLCMAC_FLAG_PACCH 1 /* assignment on PACCH */ |
Pau Espin Pedrol | 3e48cfd | 2021-07-29 18:29:56 +0200 | [diff] [blame] | 115 | #define GPRS_RLCMAC_FLAG_DL_ACK 2 /* DL TBF: At least one DL ACK/NACK was recieved since it was assigned */ |
Pau Espin Pedrol | ea8dbdd | 2021-07-29 18:39:16 +0200 | [diff] [blame] | 116 | #define GPRS_RLCMAC_FLAG_TO_DL_ACK 3 /* DL TBF: Failed to receive last polled DL ACK/NACK */ |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 117 | #define GPRS_RLCMAC_FLAG_TO_MASK 0xf0 /* timeout bits */ |
| 118 | |
Pau Espin Pedrol | 38a9c87 | 2021-10-12 19:18:57 +0200 | [diff] [blame] | 119 | #define TBF_CONTROL_TS_UNSET 0xff |
| 120 | |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 121 | #define T_START(tbf, t, T, r, f) tbf->t_start(t, T, r, f, __FILE__, __LINE__) |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 122 | |
Vadim Yanitskiy | cef2f84 | 2019-10-09 21:52:50 +0700 | [diff] [blame] | 123 | #ifdef __cplusplus |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 124 | extern "C" { |
| 125 | #endif |
| 126 | struct gprs_rlcmac_tbf; |
Pau Espin Pedrol | 57dcde4 | 2021-02-01 18:14:23 +0100 | [diff] [blame] | 127 | const char *tbf_name(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 128 | enum tbf_fsm_states tbf_state(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 129 | struct osmo_fsm_inst *tbf_ul_ass_fi(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 49a2f40 | 2021-07-27 17:33:07 +0200 | [diff] [blame] | 130 | struct osmo_fsm_inst *tbf_dl_ass_fi(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 131 | enum gprs_rlcmac_tbf_direction tbf_direction(const struct gprs_rlcmac_tbf *tbf); |
| 132 | void tbf_set_ms(struct gprs_rlcmac_tbf *tbf, struct GprsMs *ms); |
| 133 | struct llist_head *tbf_ms_list(struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 1a1557a | 2021-05-13 18:39:36 +0200 | [diff] [blame] | 134 | struct llist_head *tbf_trx_list(struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 1e77ca8 | 2021-01-27 13:22:03 +0100 | [diff] [blame] | 135 | struct GprsMs *tbf_ms(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 136 | bool tbf_timers_pending(struct gprs_rlcmac_tbf *tbf, enum tbf_timers t); |
| 137 | void tbf_free(struct gprs_rlcmac_tbf *tbf); |
| 138 | struct gprs_llc *tbf_llc(struct gprs_rlcmac_tbf *tbf); |
| 139 | uint8_t tbf_first_common_ts(const struct gprs_rlcmac_tbf *tbf); |
| 140 | uint8_t tbf_dl_slots(const struct gprs_rlcmac_tbf *tbf); |
| 141 | uint8_t tbf_ul_slots(const struct gprs_rlcmac_tbf *tbf); |
| 142 | bool tbf_is_tfi_assigned(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | c0a250d | 2021-01-21 18:46:13 +0100 | [diff] [blame] | 143 | uint8_t tbf_tfi(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 144 | bool tbf_is_egprs_enabled(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 32744c8 | 2021-10-12 19:36:40 +0200 | [diff] [blame] | 145 | void tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 952cb3d | 2021-02-01 14:52:48 +0100 | [diff] [blame] | 146 | int tbf_check_polling(const struct gprs_rlcmac_tbf *tbf, uint32_t fn, uint8_t ts, uint32_t *poll_fn, unsigned int *rrbp); |
Pau Espin Pedrol | 86580e1 | 2021-03-29 18:15:30 +0200 | [diff] [blame] | 147 | void tbf_set_polling(struct gprs_rlcmac_tbf *tbf, uint32_t new_poll_fn, uint8_t ts, enum pdch_ulc_tbf_poll_reason t); |
Pau Espin Pedrol | 16e1678 | 2021-03-29 19:10:19 +0200 | [diff] [blame] | 148 | void tbf_poll_timeout(struct gprs_rlcmac_tbf *tbf, struct gprs_rlcmac_pdch *pdch, uint32_t poll_fn, enum pdch_ulc_tbf_poll_reason reason); |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 149 | void tbf_update_state_fsm_name(struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | ab8fba3 | 2021-07-27 16:35:00 +0200 | [diff] [blame] | 150 | const char* tbf_rlcmac_diag(const struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | 49a2f40 | 2021-07-27 17:33:07 +0200 | [diff] [blame] | 151 | bool tbf_is_control_ts(const struct gprs_rlcmac_tbf *tbf, uint8_t ts); |
Pau Espin Pedrol | 3225290 | 2021-07-29 16:44:11 +0200 | [diff] [blame] | 152 | bool tbf_can_upgrade_to_multislot(const struct gprs_rlcmac_tbf *tbf); |
| 153 | int tbf_update(struct gprs_rlcmac_tbf *tbf); |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 154 | #ifdef __cplusplus |
| 155 | } |
| 156 | #endif |
| 157 | |
| 158 | #ifdef __cplusplus |
Vadim Yanitskiy | cef2f84 | 2019-10-09 21:52:50 +0700 | [diff] [blame] | 159 | |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 160 | struct gprs_rlcmac_tbf { |
Pau Espin Pedrol | 2182e62 | 2021-01-14 16:48:38 +0100 | [diff] [blame] | 161 | gprs_rlcmac_tbf(struct gprs_rlcmac_bts *bts_, GprsMs *ms, gprs_rlcmac_tbf_direction dir); |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 162 | virtual ~gprs_rlcmac_tbf(); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 163 | |
Pau Espin Pedrol | b3f2397 | 2020-10-23 21:00:23 +0200 | [diff] [blame] | 164 | virtual gprs_rlc_window *window() = 0; |
| 165 | |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 166 | int setup(int8_t use_trx, bool single_slot); |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 167 | bool state_is(enum tbf_fsm_states rhs) const; |
| 168 | bool state_is_not(enum tbf_fsm_states rhs) const; |
Pau Espin Pedrol | 49a2f40 | 2021-07-27 17:33:07 +0200 | [diff] [blame] | 169 | bool dl_ass_state_is(enum tbf_dl_ass_fsm_states rhs) const; |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 170 | bool ul_ass_state_is(enum tbf_ul_ass_fsm_states rhs) const; |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame] | 171 | void poll_sched_set(const char *file, int line); |
| 172 | void poll_sched_unset(const char *file, int line); |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 173 | bool check_n_clear(uint8_t state_flag); |
Daniel Willmann | 08e57c8 | 2014-08-15 18:11:57 +0200 | [diff] [blame] | 174 | const char *state_name() const; |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 175 | |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 176 | const char *name() const; |
| 177 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 178 | struct msgb *create_dl_ass(uint32_t fn, uint8_t ts); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 179 | |
Jacob Erlbeck | 10ed795 | 2015-06-02 11:37:22 +0200 | [diff] [blame] | 180 | GprsMs *ms() const; |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 181 | void set_ms(GprsMs *ms); |
| 182 | |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 183 | bool n_inc(enum tbf_counters n); |
| 184 | void n_reset(enum tbf_counters n); |
| 185 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 186 | int update(); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 187 | void handle_timeout(); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 188 | void stop_timers(const char *reason); |
| 189 | bool timers_pending(enum tbf_timers t); |
| 190 | void t_stop(enum tbf_timers t, const char *reason); |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 191 | void t_start(enum tbf_timers t, int T, const char *reason, bool force, |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 192 | const char *file, unsigned line); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 193 | int establish_dl_tbf_on_pacch(); |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 194 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 195 | int check_polling(uint32_t fn, uint8_t ts, |
Pau Espin Pedrol | 57dcde4 | 2021-02-01 18:14:23 +0100 | [diff] [blame] | 196 | uint32_t *poll_fn, unsigned int *rrbp) const; |
Pau Espin Pedrol | 86580e1 | 2021-03-29 18:15:30 +0200 | [diff] [blame] | 197 | void set_polling(uint32_t poll_fn, uint8_t ts, enum pdch_ulc_tbf_poll_reason reason); |
Pau Espin Pedrol | 16e1678 | 2021-03-29 19:10:19 +0200 | [diff] [blame] | 198 | void poll_timeout(struct gprs_rlcmac_pdch *pdch, uint32_t poll_fn, enum pdch_ulc_tbf_poll_reason reason); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 199 | |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 200 | /** tlli handling */ |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 201 | uint32_t tlli() const; |
| 202 | bool is_tlli_valid() const; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 203 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 204 | /** MS updating */ |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 205 | void update_ms(uint32_t tlli, enum gprs_rlcmac_tbf_direction); |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 206 | |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 207 | uint8_t tfi() const; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 208 | bool is_tfi_assigned() const; |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 209 | |
Holger Hans Peter Freyther | 5464c9b | 2013-10-27 20:57:35 +0100 | [diff] [blame] | 210 | const char *imsi() const; |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 211 | uint8_t ta() const; |
| 212 | void set_ta(uint8_t); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 213 | uint8_t ms_class() const; |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 214 | enum CodingScheme current_cs() const; |
Holger Hans Peter Freyther | 5464c9b | 2013-10-27 20:57:35 +0100 | [diff] [blame] | 215 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 216 | time_t created_ts() const; |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 217 | uint8_t dl_slots() const; |
| 218 | uint8_t ul_slots() const; |
Daniel Willmann | 80367aa | 2014-01-15 17:40:28 +0100 | [diff] [blame] | 219 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 220 | bool is_control_ts(uint8_t ts) const; |
| 221 | |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 222 | /* EGPRS */ |
| 223 | bool is_egprs_enabled() const; |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 224 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 225 | /* attempt to make things a bit more fair */ |
| 226 | void rotate_in_list(); |
| 227 | |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 228 | enum gprs_rlcmac_tbf_direction direction; |
Holger Hans Peter Freyther | 743bafa | 2013-09-29 07:50:50 +0200 | [diff] [blame] | 229 | struct gprs_rlcmac_trx *trx; |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 230 | uint8_t first_ts; /* first TS used by TBF */ |
Pau Espin Pedrol | 01aef5e | 2020-09-22 19:08:57 +0200 | [diff] [blame] | 231 | uint8_t first_common_ts; /* first TS where the phone can send and |
| 232 | receive simultaniously */ |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 233 | uint8_t control_ts; /* timeslot control messages and polling */ |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 234 | struct gprs_rlcmac_pdch *pdch[8]; /* list of PDCHs allocated to TBF */ |
Holger Hans Peter Freyther | 28e5378 | 2013-11-06 20:23:56 +0100 | [diff] [blame] | 235 | |
| 236 | gprs_llc m_llc; |
Holger Hans Peter Freyther | 9241fd0 | 2013-11-13 19:51:55 +0100 | [diff] [blame] | 237 | gprs_rlc m_rlc; |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 238 | |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 239 | unsigned int fT; /* fTxxxx number */ |
| 240 | unsigned int num_fT_exp; /* number of consecutive fT expirations */ |
| 241 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 242 | struct Meas { |
Stefan Sperling | f0f7df1 | 2018-05-25 15:12:30 +0200 | [diff] [blame] | 243 | struct timespec rssi_tv; /* timestamp for rssi calculation */ |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 244 | int32_t rssi_sum; /* sum of rssi values */ |
| 245 | int rssi_num; /* number of rssi values added since rssi_tv */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 246 | |
| 247 | Meas(); |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 248 | } meas; |
| 249 | |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 250 | /* Can/should we upgrade this tbf to use multiple slots? */ |
Pau Espin Pedrol | 907f037 | 2021-07-29 16:34:04 +0200 | [diff] [blame] | 251 | bool upgrade_to_multislot; |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 252 | |
Holger Hans Peter Freyther | 9f0c1d2 | 2013-10-19 21:24:34 +0200 | [diff] [blame] | 253 | /* store the BTS this TBF belongs to */ |
Pau Espin Pedrol | 2182e62 | 2021-01-14 16:48:38 +0100 | [diff] [blame] | 254 | struct gprs_rlcmac_bts *bts; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 255 | |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 256 | /* |
| 257 | * private fields. We can't make it private as it is breaking the |
| 258 | * llist macros. |
| 259 | */ |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 260 | uint8_t m_tfi; |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 261 | time_t m_created_ts; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 262 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 263 | struct rate_ctr_group *m_ctrs; |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 264 | struct tbf_fsm_ctx state_fsm; |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 265 | struct tbf_ul_ass_fsm_ctx ul_ass_fsm; |
Pau Espin Pedrol | 49a2f40 | 2021-07-27 17:33:07 +0200 | [diff] [blame] | 266 | struct tbf_ul_ass_fsm_ctx dl_ass_fsm; |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 267 | |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 268 | struct llist_item m_ms_list; |
Pau Espin Pedrol | 1a1557a | 2021-05-13 18:39:36 +0200 | [diff] [blame] | 269 | struct llist_item m_trx_list; |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 270 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 271 | protected: |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 272 | void merge_and_clear_ms(GprsMs *old_ms); |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 273 | |
Alexander Couzens | d38b92e | 2016-08-21 19:38:30 +0200 | [diff] [blame] | 274 | gprs_llc_queue *llc_queue(); |
| 275 | const gprs_llc_queue *llc_queue() const; |
| 276 | |
Pau Espin Pedrol | da971ee | 2020-12-16 15:59:45 +0100 | [diff] [blame] | 277 | struct GprsMs *m_ms; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 278 | private: |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 279 | void enable_egprs(); |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 280 | bool m_egprs_enabled; |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 281 | struct osmo_timer_list Tarr[T_MAX]; |
| 282 | uint8_t Narr[N_MAX]; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 283 | mutable char m_name_buf[60]; |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 284 | }; |
| 285 | |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 286 | inline bool gprs_rlcmac_tbf::state_is(enum tbf_fsm_states rhs) const |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 287 | { |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 288 | return tbf_state(this) == rhs; |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 289 | } |
| 290 | |
Pau Espin Pedrol | 49a2f40 | 2021-07-27 17:33:07 +0200 | [diff] [blame] | 291 | inline bool gprs_rlcmac_tbf::dl_ass_state_is(enum tbf_dl_ass_fsm_states rhs) const |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 292 | { |
Pau Espin Pedrol | 49a2f40 | 2021-07-27 17:33:07 +0200 | [diff] [blame] | 293 | return tbf_dl_ass_fi(this)->state == rhs; |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 294 | } |
| 295 | |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 296 | inline bool gprs_rlcmac_tbf::ul_ass_state_is(enum tbf_ul_ass_fsm_states rhs) const |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 297 | { |
Pau Espin Pedrol | 6ad11a6 | 2021-07-27 12:27:08 +0200 | [diff] [blame] | 298 | return tbf_ul_ass_fi(this)->state == rhs; |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 299 | } |
| 300 | |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 301 | inline bool gprs_rlcmac_tbf::state_is_not(enum tbf_fsm_states rhs) const |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 302 | { |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 303 | return tbf_state(this) != rhs; |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 304 | } |
| 305 | |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 306 | |
Daniel Willmann | 08e57c8 | 2014-08-15 18:11:57 +0200 | [diff] [blame] | 307 | inline const char *gprs_rlcmac_tbf::state_name() const |
| 308 | { |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 309 | return osmo_fsm_inst_state_name(state_fsm.fi); |
Daniel Willmann | 08e57c8 | 2014-08-15 18:11:57 +0200 | [diff] [blame] | 310 | } |
| 311 | |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 312 | inline bool gprs_rlcmac_tbf::check_n_clear(uint8_t state_flag) |
| 313 | { |
Pau Espin Pedrol | 33e8007 | 2021-07-22 19:20:50 +0200 | [diff] [blame] | 314 | if ((state_fsm.state_flags & (1 << state_flag))) { |
| 315 | state_fsm.state_flags &= ~(1 << state_flag); |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 316 | return true; |
| 317 | } |
| 318 | |
| 319 | return false; |
| 320 | } |
| 321 | |
Jacob Erlbeck | 10ed795 | 2015-06-02 11:37:22 +0200 | [diff] [blame] | 322 | inline GprsMs *gprs_rlcmac_tbf::ms() const |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 323 | { |
| 324 | return m_ms; |
| 325 | } |
| 326 | |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 327 | inline bool gprs_rlcmac_tbf::is_tlli_valid() const |
| 328 | { |
Vadim Yanitskiy | cb98894 | 2020-11-08 13:27:35 +0700 | [diff] [blame] | 329 | return tlli() != GSM_RESERVED_TMSI; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 330 | } |
| 331 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 332 | inline bool gprs_rlcmac_tbf::is_tfi_assigned() const |
| 333 | { |
| 334 | /* The TBF is established or has been assigned by a IMM.ASS for |
| 335 | * download */ |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 336 | return state_fsm.fi->state > TBF_ST_ASSIGN || |
Neels Hofmeyr | 4ea4526 | 2016-06-08 15:27:40 +0200 | [diff] [blame] | 337 | (direction == GPRS_RLCMAC_DL_TBF && |
Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame] | 338 | state_fsm.fi->state == TBF_ST_ASSIGN && |
Pau Espin Pedrol | 33e8007 | 2021-07-22 19:20:50 +0200 | [diff] [blame] | 339 | (state_fsm.state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))); |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 340 | } |
| 341 | |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 342 | inline uint8_t gprs_rlcmac_tbf::tfi() const |
| 343 | { |
| 344 | return m_tfi; |
| 345 | } |
| 346 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 347 | inline time_t gprs_rlcmac_tbf::created_ts() const |
Daniel Willmann | 80367aa | 2014-01-15 17:40:28 +0100 | [diff] [blame] | 348 | { |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 349 | return m_created_ts; |
Daniel Willmann | 80367aa | 2014-01-15 17:40:28 +0100 | [diff] [blame] | 350 | } |
| 351 | |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 352 | inline bool gprs_rlcmac_tbf::is_egprs_enabled() const |
| 353 | { |
| 354 | return m_egprs_enabled; |
| 355 | } |
| 356 | |
Jacob Erlbeck | ac89a55 | 2015-06-29 14:18:46 +0200 | [diff] [blame] | 357 | inline enum gprs_rlcmac_tbf_direction reverse(enum gprs_rlcmac_tbf_direction dir) |
| 358 | { |
| 359 | return (enum gprs_rlcmac_tbf_direction) |
| 360 | ((int)GPRS_RLCMAC_UL_TBF - (int)dir + (int)GPRS_RLCMAC_DL_TBF); |
| 361 | } |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 362 | |
Pau Espin Pedrol | 0ece97d | 2021-01-18 12:53:54 +0100 | [diff] [blame] | 363 | uint16_t egprs_window_size(const struct gprs_rlcmac_bts *bts, uint8_t slots); |
Max | 9d7357e | 2017-12-14 15:02:33 +0100 | [diff] [blame] | 364 | |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 365 | #endif |