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 | |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 23 | #include "gprs_rlcmac.h" |
Holger Hans Peter Freyther | be57081 | 2013-11-07 08:01:49 +0100 | [diff] [blame] | 24 | #include "llc.h" |
Holger Hans Peter Freyther | 6b5660c | 2013-11-23 16:10:48 +0100 | [diff] [blame] | 25 | #include "rlc.h" |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 26 | #include "cxx_linuxlist.h" |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 27 | #include <gprs_debug.h> |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 28 | |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 29 | #include <stdint.h> |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 30 | extern "C" { |
| 31 | #include <osmocom/core/utils.h> |
| 32 | } |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 33 | |
Holger Hans Peter Freyther | 1702f10 | 2013-10-20 08:44:02 +0200 | [diff] [blame] | 34 | struct bssgp_bvc_ctx; |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 35 | struct pcu_l1_meas; |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 36 | class GprsMs; |
Holger Hans Peter Freyther | 1702f10 | 2013-10-20 08:44:02 +0200 | [diff] [blame] | 37 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 38 | /* |
| 39 | * TBF instance |
| 40 | */ |
| 41 | |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 42 | #define T_ASS_AGCH_USEC 200000 /* waiting after IMM.ASS confirm */ |
| 43 | #define T_ASS_PACCH_SEC 2 /* timeout for pacch assigment */ |
| 44 | #define T_REJ_PACCH_USEC 2000 /* timeout for tbf reject for PRR*/ |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 45 | |
| 46 | enum gprs_rlcmac_tbf_state { |
| 47 | GPRS_RLCMAC_NULL = 0, /* new created TBF */ |
Neels Hofmeyr | 4ea4526 | 2016-06-08 15:27:40 +0200 | [diff] [blame] | 48 | GPRS_RLCMAC_ASSIGN, /* wait for downlink assignment */ |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 49 | GPRS_RLCMAC_FLOW, /* RLC/MAC flow, resource needed */ |
| 50 | GPRS_RLCMAC_FINISHED, /* flow finished, wait for release */ |
| 51 | GPRS_RLCMAC_WAIT_RELEASE,/* wait for release or restart of DL TBF */ |
| 52 | GPRS_RLCMAC_RELEASING, /* releasing, wait to free TBI/USF */ |
| 53 | }; |
| 54 | |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 55 | enum gprs_rlcmac_tbf_poll_type { |
| 56 | GPRS_RLCMAC_POLL_UL_ASS, |
| 57 | GPRS_RLCMAC_POLL_DL_ASS, |
| 58 | GPRS_RLCMAC_POLL_UL_ACK, |
| 59 | GPRS_RLCMAC_POLL_DL_ACK, |
| 60 | }; |
| 61 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 62 | enum gprs_rlcmac_tbf_poll_state { |
| 63 | GPRS_RLCMAC_POLL_NONE = 0, |
| 64 | GPRS_RLCMAC_POLL_SCHED, /* a polling was scheduled */ |
| 65 | }; |
| 66 | |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame^] | 67 | extern const struct value_string gprs_rlcmac_tbf_poll_state_names[]; |
| 68 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 69 | enum gprs_rlcmac_tbf_dl_ass_state { |
| 70 | GPRS_RLCMAC_DL_ASS_NONE = 0, |
| 71 | GPRS_RLCMAC_DL_ASS_SEND_ASS, /* send downlink assignment on next RTS */ |
| 72 | GPRS_RLCMAC_DL_ASS_WAIT_ACK, /* wait for PACKET CONTROL ACK */ |
| 73 | }; |
| 74 | |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 75 | extern const struct value_string gprs_rlcmac_tbf_dl_ass_state_names[]; |
| 76 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 77 | enum gprs_rlcmac_tbf_ul_ass_state { |
| 78 | GPRS_RLCMAC_UL_ASS_NONE = 0, |
| 79 | GPRS_RLCMAC_UL_ASS_SEND_ASS, /* send uplink assignment on next RTS */ |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 80 | GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ, /* send assignment reject next RTS */ |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 81 | GPRS_RLCMAC_UL_ASS_WAIT_ACK, /* wait for PACKET CONTROL ACK */ |
| 82 | }; |
| 83 | |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 84 | extern const struct value_string gprs_rlcmac_tbf_ul_ass_state_names[]; |
| 85 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 86 | enum gprs_rlcmac_tbf_ul_ack_state { |
| 87 | GPRS_RLCMAC_UL_ACK_NONE = 0, |
| 88 | GPRS_RLCMAC_UL_ACK_SEND_ACK, /* send acknowledge on next RTS */ |
| 89 | GPRS_RLCMAC_UL_ACK_WAIT_ACK, /* wait for PACKET CONTROL ACK */ |
| 90 | }; |
| 91 | |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 92 | extern const struct value_string gprs_rlcmac_tbf_ul_ack_state_names[]; |
| 93 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 94 | enum gprs_rlcmac_tbf_direction { |
| 95 | GPRS_RLCMAC_DL_TBF, |
| 96 | GPRS_RLCMAC_UL_TBF |
| 97 | }; |
| 98 | |
Max | d0532b5 | 2017-12-13 18:27:32 +0100 | [diff] [blame] | 99 | enum tbf_dl_prio { |
| 100 | DL_PRIO_NONE, |
| 101 | DL_PRIO_SENT_DATA, /* the data has been sent and not (yet) nacked */ |
| 102 | DL_PRIO_LOW_AGE, /* the age has reached the first threshold */ |
| 103 | DL_PRIO_NEW_DATA, /* the data has not been sent yet or nacked */ |
| 104 | DL_PRIO_HIGH_AGE, /* the age has reached the second threshold */ |
| 105 | DL_PRIO_CONTROL, /* a control block needs to be sent */ |
| 106 | }; |
| 107 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 108 | enum tbf_counters { |
| 109 | TBF_CTR_RLC_NACKED, |
| 110 | }; |
| 111 | |
| 112 | enum tbf_gprs_counters { |
| 113 | TBF_CTR_GPRS_DL_CS1, |
| 114 | TBF_CTR_GPRS_DL_CS2, |
| 115 | TBF_CTR_GPRS_DL_CS3, |
| 116 | TBF_CTR_GPRS_DL_CS4, |
| 117 | }; |
| 118 | |
| 119 | enum tbf_egprs_counters { |
| 120 | TBF_CTR_EGPRS_DL_MCS1, |
| 121 | TBF_CTR_EGPRS_DL_MCS2, |
| 122 | TBF_CTR_EGPRS_DL_MCS3, |
| 123 | TBF_CTR_EGPRS_DL_MCS4, |
| 124 | TBF_CTR_EGPRS_DL_MCS5, |
| 125 | TBF_CTR_EGPRS_DL_MCS6, |
| 126 | TBF_CTR_EGPRS_DL_MCS7, |
| 127 | TBF_CTR_EGPRS_DL_MCS8, |
| 128 | TBF_CTR_EGPRS_DL_MCS9, |
| 129 | }; |
| 130 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 131 | enum tbf_gprs_ul_counters { |
| 132 | TBF_CTR_GPRS_UL_CS1, |
| 133 | TBF_CTR_GPRS_UL_CS2, |
| 134 | TBF_CTR_GPRS_UL_CS3, |
| 135 | TBF_CTR_GPRS_UL_CS4, |
| 136 | }; |
| 137 | |
| 138 | enum tbf_egprs_ul_counters { |
| 139 | TBF_CTR_EGPRS_UL_MCS1, |
| 140 | TBF_CTR_EGPRS_UL_MCS2, |
| 141 | TBF_CTR_EGPRS_UL_MCS3, |
| 142 | TBF_CTR_EGPRS_UL_MCS4, |
| 143 | TBF_CTR_EGPRS_UL_MCS5, |
| 144 | TBF_CTR_EGPRS_UL_MCS6, |
| 145 | TBF_CTR_EGPRS_UL_MCS7, |
| 146 | TBF_CTR_EGPRS_UL_MCS8, |
| 147 | TBF_CTR_EGPRS_UL_MCS9, |
| 148 | }; |
| 149 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 150 | #define LOGPTBF(tbf, level, fmt, args...) LOGP(DTBF, level, "%s " fmt, tbf_name(tbf), ## args) |
| 151 | #define LOGPTBFUL(tbf, level, fmt, args...) LOGP(DTBFUL, level, "%s " fmt, tbf_name(tbf), ## args) |
| 152 | #define LOGPTBFDL(tbf, level, fmt, args...) LOGP(DTBFDL, level, "%s " fmt, tbf_name(tbf), ## args) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 153 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 154 | enum tbf_timers { |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 155 | /* internal assign/reject timer */ |
| 156 | T0, |
| 157 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 158 | /* Wait for reuse of USF and TFI(s) after the MS uplink assignment for this TBF is invalid. */ |
| 159 | T3169, |
| 160 | |
| 161 | /* Wait for reuse of TFI(s) after sending of the last RLC Data Block on this TBF. |
| 162 | Wait for reuse of TFI(s) after sending the PACKET TBF RELEASE for an MBMS radio bearer. */ |
| 163 | T3191, |
| 164 | |
| 165 | /* Wait for reuse of TFI(s) after reception of the final PACKET DOWNLINK ACK/NACK from the |
| 166 | MS for this TBF. */ |
| 167 | T3193, |
| 168 | |
| 169 | /* Wait for reuse of TFI(s) when there is no response from the MS |
| 170 | (radio failure or cell change) for this TBF/MBMS radio bearer. */ |
| 171 | T3195, |
| 172 | T_MAX |
| 173 | }; |
| 174 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 175 | #define GPRS_RLCMAC_FLAG_CCCH 0 /* assignment on CCCH */ |
| 176 | #define GPRS_RLCMAC_FLAG_PACCH 1 /* assignment on PACCH */ |
| 177 | #define GPRS_RLCMAC_FLAG_UL_DATA 2 /* uplink data received */ |
| 178 | #define GPRS_RLCMAC_FLAG_DL_ACK 3 /* downlink acknowledge received */ |
| 179 | #define GPRS_RLCMAC_FLAG_TO_UL_ACK 4 |
| 180 | #define GPRS_RLCMAC_FLAG_TO_DL_ACK 5 |
| 181 | #define GPRS_RLCMAC_FLAG_TO_UL_ASS 6 |
| 182 | #define GPRS_RLCMAC_FLAG_TO_DL_ASS 7 |
| 183 | #define GPRS_RLCMAC_FLAG_TO_MASK 0xf0 /* timeout bits */ |
| 184 | |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 185 | #define T_START(tbf, t, sec, usec, r, f) tbf->t_start(t, sec, usec, r, f, __FILE__, __LINE__) |
| 186 | |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 187 | #define TBF_SET_STATE(t, st) do { t->set_state(st, __FILE__, __LINE__); } while(0) |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 188 | #define TBF_SET_ASS_STATE_DL(t, st) do { t->set_ass_state_dl(st, __FILE__, __LINE__); } while(0) |
| 189 | #define TBF_SET_ASS_STATE_UL(t, st) do { t->set_ass_state_ul(st, __FILE__, __LINE__); } while(0) |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 190 | #define TBF_SET_ACK_STATE(t, st) do { t->set_ack_state(st, __FILE__, __LINE__); } while(0) |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame^] | 191 | #define TBF_POLL_SCHED_SET(t) do { t->poll_sched_set(__FILE__, __LINE__); } while(0) |
| 192 | #define TBF_POLL_SCHED_UNSET(t) do { t->poll_sched_unset(__FILE__, __LINE__); } while(0) |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 193 | #define TBF_SET_ASS_ON(t, fl, chk) do { t->set_assigned_on(fl, chk, __FILE__, __LINE__); } while(0) |
| 194 | |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 195 | struct gprs_rlcmac_tbf { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 196 | gprs_rlcmac_tbf(BTS *bts_, gprs_rlcmac_tbf_direction dir); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 197 | |
| 198 | static void free_all(struct gprs_rlcmac_trx *trx); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 199 | static void free_all(struct gprs_rlcmac_pdch *pdch); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 200 | |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 201 | bool state_is(enum gprs_rlcmac_tbf_state rhs) const; |
| 202 | bool state_is_not(enum gprs_rlcmac_tbf_state rhs) const; |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 203 | bool dl_ass_state_is(enum gprs_rlcmac_tbf_dl_ass_state rhs) const; |
| 204 | bool ul_ass_state_is(enum gprs_rlcmac_tbf_ul_ass_state rhs) const; |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 205 | bool ul_ack_state_is(enum gprs_rlcmac_tbf_ul_ack_state rhs) const; |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame^] | 206 | bool poll_scheduled() const; |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 207 | void set_state(enum gprs_rlcmac_tbf_state new_state, const char *file, int line); |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 208 | void set_ass_state_dl(enum gprs_rlcmac_tbf_dl_ass_state new_state, const char *file, int line); |
| 209 | void set_ass_state_ul(enum gprs_rlcmac_tbf_ul_ass_state new_state, const char *file, int line); |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 210 | void set_ack_state(enum gprs_rlcmac_tbf_ul_ack_state new_state, const char *file, int line); |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame^] | 211 | void poll_sched_set(const char *file, int line); |
| 212 | void poll_sched_unset(const char *file, int line); |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 213 | void check_pending_ass(); |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 214 | bool check_n_clear(uint8_t state_flag); |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 215 | void set_assigned_on(uint8_t state_flag, bool check_ccch, const char *file, int line); |
Daniel Willmann | 08e57c8 | 2014-08-15 18:11:57 +0200 | [diff] [blame] | 216 | const char *state_name() const; |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 217 | |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 218 | const char *name() const; |
| 219 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 220 | struct msgb *create_dl_ass(uint32_t fn, uint8_t ts); |
| 221 | struct msgb *create_ul_ass(uint32_t fn, uint8_t ts); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 222 | struct msgb *create_packet_access_reject(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 223 | |
Jacob Erlbeck | 10ed795 | 2015-06-02 11:37:22 +0200 | [diff] [blame] | 224 | GprsMs *ms() const; |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 225 | void set_ms(GprsMs *ms); |
| 226 | |
Holger Hans Peter Freyther | 8f399de | 2013-12-25 20:22:35 +0100 | [diff] [blame] | 227 | uint8_t tsc() const; |
Holger Hans Peter Freyther | a1da251 | 2013-11-07 07:32:51 +0100 | [diff] [blame] | 228 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 229 | int rlcmac_diag(); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 230 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 231 | int update(); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 232 | void handle_timeout(); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 233 | void stop_timers(const char *reason); |
| 234 | bool timers_pending(enum tbf_timers t); |
| 235 | void t_stop(enum tbf_timers t, const char *reason); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 236 | void t_start(enum tbf_timers t, uint32_t sec, uint32_t microsec, const char *reason, bool force, |
| 237 | const char *file, unsigned line); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 238 | int establish_dl_tbf_on_pacch(); |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 239 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 240 | int check_polling(uint32_t fn, uint8_t ts, |
| 241 | uint32_t *poll_fn, unsigned int *rrbp); |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 242 | void set_polling(uint32_t poll_fn, uint8_t ts, enum gprs_rlcmac_tbf_poll_type t); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 243 | void poll_timeout(); |
| 244 | |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 245 | /** tlli handling */ |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 246 | uint32_t tlli() const; |
| 247 | bool is_tlli_valid() const; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 248 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 249 | /** MS updating */ |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 250 | void update_ms(uint32_t tlli, enum gprs_rlcmac_tbf_direction); |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 251 | |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 252 | uint8_t tfi() const; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 253 | bool is_tfi_assigned() const; |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 254 | |
Holger Hans Peter Freyther | 5464c9b | 2013-10-27 20:57:35 +0100 | [diff] [blame] | 255 | const char *imsi() const; |
| 256 | void assign_imsi(const char *imsi); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 257 | uint8_t ta() const; |
| 258 | void set_ta(uint8_t); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 259 | uint8_t ms_class() const; |
| 260 | void set_ms_class(uint8_t); |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 261 | GprsCodingScheme current_cs() const; |
Max | 869c0c2 | 2018-01-03 12:00:36 +0100 | [diff] [blame] | 262 | size_t llc_queue_size() const; |
Holger Hans Peter Freyther | 5464c9b | 2013-10-27 20:57:35 +0100 | [diff] [blame] | 263 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 264 | time_t created_ts() const; |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 265 | uint8_t dl_slots() const; |
| 266 | uint8_t ul_slots() const; |
Daniel Willmann | 80367aa | 2014-01-15 17:40:28 +0100 | [diff] [blame] | 267 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 268 | bool is_control_ts(uint8_t ts) const; |
| 269 | |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 270 | /* EGPRS */ |
| 271 | bool is_egprs_enabled() const; |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 272 | void disable_egprs(); |
| 273 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 274 | /* attempt to make things a bit more fair */ |
| 275 | void rotate_in_list(); |
| 276 | |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 277 | LListHead<gprs_rlcmac_tbf>& ms_list() {return this->m_ms_list;} |
| 278 | const LListHead<gprs_rlcmac_tbf>& ms_list() const {return this->m_ms_list;} |
| 279 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 280 | LListHead<gprs_rlcmac_tbf>& list(); |
| 281 | const LListHead<gprs_rlcmac_tbf>& list() const; |
| 282 | |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 283 | uint32_t state_flags; |
| 284 | enum gprs_rlcmac_tbf_direction direction; |
Holger Hans Peter Freyther | 743bafa | 2013-09-29 07:50:50 +0200 | [diff] [blame] | 285 | struct gprs_rlcmac_trx *trx; |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 286 | uint8_t first_ts; /* first TS used by TBF */ |
| 287 | uint8_t first_common_ts; /* first TS that the phone can send and |
| 288 | reveive simultaniously */ |
| 289 | uint8_t control_ts; /* timeslot control messages and polling */ |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 290 | 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] | 291 | |
| 292 | gprs_llc m_llc; |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 293 | |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 294 | uint32_t poll_fn; /* frame number to poll */ |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 295 | uint8_t poll_ts; /* TS to poll */ |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 296 | |
Holger Hans Peter Freyther | 9241fd0 | 2013-11-13 19:51:55 +0100 | [diff] [blame] | 297 | gprs_rlc m_rlc; |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 298 | |
| 299 | uint8_t n3105; /* N3105 counter */ |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 300 | |
| 301 | struct osmo_gsm_timer_list gsm_timer; |
| 302 | unsigned int fT; /* fTxxxx number */ |
| 303 | unsigned int num_fT_exp; /* number of consecutive fT expirations */ |
| 304 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 305 | struct Meas { |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 306 | struct timeval rssi_tv; /* timestamp for rssi calculation */ |
| 307 | int32_t rssi_sum; /* sum of rssi values */ |
| 308 | int rssi_num; /* number of rssi values added since rssi_tv */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 309 | |
| 310 | Meas(); |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 311 | } meas; |
| 312 | |
Daniel Willmann | 73191a4 | 2014-05-30 17:58:00 +0200 | [diff] [blame] | 313 | /* Remember if the tbf was in wait_release state when we want to |
| 314 | * schedule a new dl assignment */ |
| 315 | uint8_t was_releasing; |
| 316 | |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 317 | /* Can/should we upgrade this tbf to use multiple slots? */ |
| 318 | uint8_t upgrade_to_multislot; |
| 319 | |
Holger Hans Peter Freyther | 9f0c1d2 | 2013-10-19 21:24:34 +0200 | [diff] [blame] | 320 | /* store the BTS this TBF belongs to */ |
| 321 | BTS *bts; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 322 | |
Max | 59e4a4f | 2017-12-20 18:01:55 +0100 | [diff] [blame] | 323 | uint8_t m_n3101; /* N3101 counter */ |
| 324 | |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 325 | /* |
| 326 | * private fields. We can't make it private as it is breaking the |
| 327 | * llist macros. |
| 328 | */ |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 329 | uint8_t m_tfi; |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 330 | time_t m_created_ts; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 331 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 332 | struct rate_ctr_group *m_ctrs; |
| 333 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 334 | protected: |
| 335 | gprs_rlcmac_bts *bts_data() const; |
Max | 25a3ca4 | 2017-12-13 18:47:52 +0100 | [diff] [blame] | 336 | void enable_egprs(); |
Jacob Erlbeck | e8f5fe5 | 2015-12-14 13:23:15 +0100 | [diff] [blame] | 337 | int set_tlli_from_ul(uint32_t new_tlli); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 338 | void merge_and_clear_ms(GprsMs *old_ms); |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 339 | |
Alexander Couzens | d38b92e | 2016-08-21 19:38:30 +0200 | [diff] [blame] | 340 | gprs_llc_queue *llc_queue(); |
| 341 | const gprs_llc_queue *llc_queue() const; |
| 342 | |
Neels Hofmeyr | 4ea4526 | 2016-06-08 15:27:40 +0200 | [diff] [blame] | 343 | static const char *tbf_state_name[6]; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 344 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 345 | class GprsMs *m_ms; |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 346 | |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 347 | /* Fields to take the TA/MS class values if no MS is associated */ |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 348 | uint8_t m_ta; |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 349 | uint8_t m_ms_class; |
Jacob Erlbeck | 6dbe822 | 2015-05-29 10:37:09 +0200 | [diff] [blame] | 350 | |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 351 | private: |
Max | 5081806 | 2017-12-06 13:35:08 +0100 | [diff] [blame] | 352 | enum gprs_rlcmac_tbf_state state; |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 353 | enum gprs_rlcmac_tbf_dl_ass_state dl_ass_state; |
| 354 | enum gprs_rlcmac_tbf_ul_ass_state ul_ass_state; |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 355 | enum gprs_rlcmac_tbf_ul_ack_state ul_ack_state; |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame^] | 356 | enum gprs_rlcmac_tbf_poll_state poll_state; |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 357 | LListHead<gprs_rlcmac_tbf> m_list; |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 358 | LListHead<gprs_rlcmac_tbf> m_ms_list; |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 359 | bool m_egprs_enabled; |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 360 | struct osmo_timer_list T[T_MAX]; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 361 | mutable char m_name_buf[60]; |
Holger Hans Peter Freyther | 099535a | 2013-10-16 17:42:31 +0200 | [diff] [blame] | 362 | }; |
| 363 | |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 364 | |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 365 | struct gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 366 | int8_t use_trx, uint8_t ms_class, uint8_t egprs_ms_class, |
Jacob Erlbeck | e2e004e | 2015-06-18 17:16:26 +0200 | [diff] [blame] | 367 | uint32_t tlli, uint8_t ta, GprsMs *ms); |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 368 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 369 | struct gprs_rlcmac_ul_tbf *tbf_alloc_ul_tbf(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 370 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 371 | uint8_t ms_class, uint8_t egprs_ms_class, uint8_t single_slot); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 372 | |
| 373 | struct gprs_rlcmac_dl_tbf *tbf_alloc_dl_tbf(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 374 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 375 | uint8_t ms_class, uint8_t egprs_ms_class, uint8_t single_slot); |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 376 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 377 | void tbf_free(struct gprs_rlcmac_tbf *tbf); |
| 378 | |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 379 | struct gprs_rlcmac_ul_tbf *handle_tbf_reject(struct gprs_rlcmac_bts *bts, |
| 380 | GprsMs *ms, uint32_t tlli, uint8_t trx_no, uint8_t ts_no); |
| 381 | |
Holger Hans Peter Freyther | 9e21d84 | 2013-10-16 17:48:12 +0200 | [diff] [blame] | 382 | int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf); |
| 383 | |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 384 | inline bool gprs_rlcmac_tbf::state_is(enum gprs_rlcmac_tbf_state rhs) const |
| 385 | { |
| 386 | return state == rhs; |
| 387 | } |
| 388 | |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 389 | inline bool gprs_rlcmac_tbf::dl_ass_state_is(enum gprs_rlcmac_tbf_dl_ass_state rhs) const |
| 390 | { |
| 391 | return dl_ass_state == rhs; |
| 392 | } |
| 393 | |
| 394 | inline bool gprs_rlcmac_tbf::ul_ass_state_is(enum gprs_rlcmac_tbf_ul_ass_state rhs) const |
| 395 | { |
| 396 | return ul_ass_state == rhs; |
| 397 | } |
| 398 | |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 399 | inline bool gprs_rlcmac_tbf::ul_ack_state_is(enum gprs_rlcmac_tbf_ul_ack_state rhs) const |
| 400 | { |
| 401 | return ul_ack_state == rhs; |
| 402 | } |
| 403 | |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame^] | 404 | inline bool gprs_rlcmac_tbf::poll_scheduled() const |
| 405 | { |
| 406 | return poll_state == GPRS_RLCMAC_POLL_SCHED; |
| 407 | } |
| 408 | |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 409 | inline bool gprs_rlcmac_tbf::state_is_not(enum gprs_rlcmac_tbf_state rhs) const |
| 410 | { |
| 411 | return state != rhs; |
| 412 | } |
| 413 | |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 414 | const char *tbf_name(gprs_rlcmac_tbf *tbf); |
| 415 | |
Daniel Willmann | 08e57c8 | 2014-08-15 18:11:57 +0200 | [diff] [blame] | 416 | inline const char *gprs_rlcmac_tbf::state_name() const |
| 417 | { |
| 418 | return tbf_state_name[state]; |
| 419 | } |
| 420 | |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 421 | /* Set assignment state and corrsponding flags */ |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 422 | inline void gprs_rlcmac_tbf::set_assigned_on(uint8_t state_flag, bool check_ccch, const char *file, int line) |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 423 | { |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 424 | set_state(GPRS_RLCMAC_ASSIGN, file, line); |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 425 | if (check_ccch) { |
| 426 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) |
| 427 | state_flags |= (1 << state_flag); |
| 428 | } else |
| 429 | state_flags |= (1 << state_flag); |
| 430 | } |
| 431 | |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 432 | inline void gprs_rlcmac_tbf::set_state(enum gprs_rlcmac_tbf_state new_state, const char *file, int line) |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 433 | { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 434 | LOGPSRC(DTBF, LOGL_DEBUG, file, line, "%s changes state from %s to %s\n", |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 435 | tbf_name(this), |
| 436 | tbf_state_name[state], tbf_state_name[new_state]); |
Holger Hans Peter Freyther | 1c344e2 | 2013-10-16 18:33:18 +0200 | [diff] [blame] | 437 | state = new_state; |
| 438 | } |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 439 | |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 440 | inline void gprs_rlcmac_tbf::set_ass_state_dl(enum gprs_rlcmac_tbf_dl_ass_state new_state, const char *file, int line) |
| 441 | { |
| 442 | LOGPSRC(DTBF, LOGL_DEBUG, file, line, "%s changes DL ASS state from %s to %s\n", |
| 443 | tbf_name(this), |
| 444 | get_value_string(gprs_rlcmac_tbf_dl_ass_state_names, dl_ass_state), |
| 445 | get_value_string(gprs_rlcmac_tbf_dl_ass_state_names, new_state)); |
| 446 | dl_ass_state = new_state; |
| 447 | } |
| 448 | |
| 449 | inline void gprs_rlcmac_tbf::set_ass_state_ul(enum gprs_rlcmac_tbf_ul_ass_state new_state, const char *file, int line) |
| 450 | { |
| 451 | LOGPSRC(DTBF, LOGL_DEBUG, file, line, "%s changes UL ASS state from %s to %s\n", |
| 452 | tbf_name(this), |
| 453 | get_value_string(gprs_rlcmac_tbf_ul_ass_state_names, ul_ass_state), |
| 454 | get_value_string(gprs_rlcmac_tbf_ul_ass_state_names, new_state)); |
| 455 | ul_ass_state = new_state; |
| 456 | } |
| 457 | |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 458 | inline void gprs_rlcmac_tbf::set_ack_state(enum gprs_rlcmac_tbf_ul_ack_state new_state, const char *file, int line) |
| 459 | { |
| 460 | LOGPSRC(DTBF, LOGL_DEBUG, file, line, "%s changes UL ACK state from %s to %s\n", |
| 461 | tbf_name(this), |
| 462 | get_value_string(gprs_rlcmac_tbf_ul_ack_state_names, ul_ack_state), |
| 463 | get_value_string(gprs_rlcmac_tbf_ul_ack_state_names, new_state)); |
| 464 | ul_ack_state = new_state; |
| 465 | } |
| 466 | |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame^] | 467 | inline void gprs_rlcmac_tbf::poll_sched_set(const char *file, int line) |
| 468 | { |
| 469 | LOGPSRC(DTBF, LOGL_DEBUG, file, line, "%s changes poll state from %s to GPRS_RLCMAC_POLL_SCHED\n", |
| 470 | tbf_name(this), get_value_string(gprs_rlcmac_tbf_poll_state_names, poll_state)); |
| 471 | poll_state = GPRS_RLCMAC_POLL_SCHED; |
| 472 | } |
| 473 | |
| 474 | inline void gprs_rlcmac_tbf::poll_sched_unset(const char *file, int line) |
| 475 | { |
| 476 | LOGPSRC(DTBF, LOGL_DEBUG, file, line, "%s changes poll state from %s to GPRS_RLCMAC_POLL_NONE\n", |
| 477 | tbf_name(this), get_value_string(gprs_rlcmac_tbf_poll_state_names, poll_state)); |
| 478 | poll_state = GPRS_RLCMAC_POLL_NONE; |
| 479 | } |
| 480 | |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 481 | inline void gprs_rlcmac_tbf::check_pending_ass() |
| 482 | { |
| 483 | if (ul_ass_state != GPRS_RLCMAC_UL_ASS_NONE) |
| 484 | LOGPTBF(this, LOGL_ERROR, "FIXME: Software error: Pending uplink assignment in state %s. " |
| 485 | "This may not happen, because the assignment message never gets transmitted. " |
| 486 | "Please be sure not to free in this state. PLEASE FIX!\n", |
| 487 | get_value_string(gprs_rlcmac_tbf_ul_ass_state_names, ul_ass_state)); |
| 488 | |
| 489 | if (dl_ass_state != GPRS_RLCMAC_DL_ASS_NONE) |
| 490 | LOGPTBF(this, LOGL_ERROR, "FIXME: Software error: Pending downlink assignment in state %s. " |
| 491 | "This may not happen, because the assignment message never gets transmitted. " |
| 492 | "Please be sure not to free in this state. PLEASE FIX!\n", |
| 493 | get_value_string(gprs_rlcmac_tbf_dl_ass_state_names, dl_ass_state)); |
| 494 | } |
| 495 | |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 496 | inline bool gprs_rlcmac_tbf::check_n_clear(uint8_t state_flag) |
| 497 | { |
| 498 | if ((state_flags & (1 << state_flag))) { |
| 499 | state_flags &= ~(1 << state_flag); |
| 500 | return true; |
| 501 | } |
| 502 | |
| 503 | return false; |
| 504 | } |
| 505 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 506 | inline LListHead<gprs_rlcmac_tbf>& gprs_rlcmac_tbf::list() |
| 507 | { |
| 508 | return this->m_list; |
| 509 | } |
| 510 | |
| 511 | inline const LListHead<gprs_rlcmac_tbf>& gprs_rlcmac_tbf::list() const |
| 512 | { |
| 513 | return this->m_list; |
| 514 | } |
| 515 | |
Jacob Erlbeck | 10ed795 | 2015-06-02 11:37:22 +0200 | [diff] [blame] | 516 | inline GprsMs *gprs_rlcmac_tbf::ms() const |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 517 | { |
| 518 | return m_ms; |
| 519 | } |
| 520 | |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 521 | inline bool gprs_rlcmac_tbf::is_tlli_valid() const |
| 522 | { |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 523 | return tlli() != 0; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 524 | } |
| 525 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 526 | inline bool gprs_rlcmac_tbf::is_tfi_assigned() const |
| 527 | { |
| 528 | /* The TBF is established or has been assigned by a IMM.ASS for |
| 529 | * download */ |
Neels Hofmeyr | 4ea4526 | 2016-06-08 15:27:40 +0200 | [diff] [blame] | 530 | return state > GPRS_RLCMAC_ASSIGN || |
| 531 | (direction == GPRS_RLCMAC_DL_TBF && |
| 532 | state == GPRS_RLCMAC_ASSIGN && |
| 533 | (state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))); |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 534 | } |
| 535 | |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 536 | inline uint8_t gprs_rlcmac_tbf::tfi() const |
| 537 | { |
| 538 | return m_tfi; |
| 539 | } |
| 540 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 541 | inline time_t gprs_rlcmac_tbf::created_ts() const |
Daniel Willmann | 80367aa | 2014-01-15 17:40:28 +0100 | [diff] [blame] | 542 | { |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 543 | return m_created_ts; |
Daniel Willmann | 80367aa | 2014-01-15 17:40:28 +0100 | [diff] [blame] | 544 | } |
| 545 | |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 546 | inline bool gprs_rlcmac_tbf::is_egprs_enabled() const |
| 547 | { |
| 548 | return m_egprs_enabled; |
| 549 | } |
| 550 | |
| 551 | inline void gprs_rlcmac_tbf::enable_egprs() |
| 552 | { |
| 553 | m_egprs_enabled = true; |
| 554 | } |
| 555 | |
| 556 | inline void gprs_rlcmac_tbf::disable_egprs() |
| 557 | { |
| 558 | m_egprs_enabled = false; |
| 559 | } |
| 560 | |
Daniel Willmann | 078bb71 | 2014-07-10 17:44:06 +0200 | [diff] [blame] | 561 | struct gprs_rlcmac_dl_tbf : public gprs_rlcmac_tbf { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 562 | gprs_rlcmac_dl_tbf(BTS *bts); |
Max | ea98b7d | 2018-01-04 15:13:27 +0100 | [diff] [blame] | 563 | gprs_rlc_dl_window *window(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 564 | void cleanup(); |
Max | 25a3ca4 | 2017-12-13 18:47:52 +0100 | [diff] [blame] | 565 | void enable_egprs(); |
Daniel Willmann | 3016888 | 2014-08-07 12:48:29 +0200 | [diff] [blame] | 566 | /* dispatch Unitdata.DL messages */ |
| 567 | static int handle(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 568 | const uint32_t tlli, const uint32_t old_tlli, |
| 569 | const char *imsi, const uint8_t ms_class, |
Jacob Erlbeck | 14e00f8 | 2015-11-27 18:10:39 +0100 | [diff] [blame] | 570 | const uint8_t egprs_ms_class, const uint16_t delay_csec, |
| 571 | const uint8_t *data, const uint16_t len); |
Daniel Willmann | 3016888 | 2014-08-07 12:48:29 +0200 | [diff] [blame] | 572 | |
Daniel Willmann | 538ac5b | 2014-07-30 19:12:27 +0200 | [diff] [blame] | 573 | int append_data(const uint8_t ms_class, |
| 574 | const uint16_t pdu_delay_csec, |
| 575 | const uint8_t *data, const uint16_t len); |
| 576 | |
Max | 7df82d4 | 2017-12-15 11:14:30 +0100 | [diff] [blame] | 577 | int rcvd_dl_ack(bool final, uint8_t ssn, uint8_t *rbb); |
| 578 | int rcvd_dl_ack(bool final_ack, unsigned first_bsn, struct bitvec *rbb); |
Daniel Willmann | b8f2601 | 2014-07-30 19:12:28 +0200 | [diff] [blame] | 579 | struct msgb *create_dl_acked_block(uint32_t fn, uint8_t ts); |
Max | a10c398 | 2017-07-07 18:25:41 +0200 | [diff] [blame] | 580 | void trigger_ass(struct gprs_rlcmac_tbf *old_tbf); |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 581 | |
Max | aae1bfb | 2017-07-07 13:49:29 +0200 | [diff] [blame] | 582 | bool handle_ack_nack(); |
Jacob Erlbeck | 7c44415 | 2015-03-12 12:08:54 +0100 | [diff] [blame] | 583 | void request_dl_ack(); |
Jacob Erlbeck | eceb910 | 2015-03-20 14:41:50 +0100 | [diff] [blame] | 584 | bool need_control_ts() const; |
| 585 | bool have_data() const; |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 586 | int frames_since_last_poll(unsigned fn) const; |
Jacob Erlbeck | 3bed5d1 | 2015-03-19 11:22:38 +0100 | [diff] [blame] | 587 | int frames_since_last_drain(unsigned fn) const; |
| 588 | bool keep_open(unsigned fn) const; |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 589 | int release(); |
Jacob Erlbeck | f04a5b3 | 2016-01-21 20:42:40 +0100 | [diff] [blame] | 590 | int abort(); |
Max | a4f570f | 2017-12-15 11:21:57 +0100 | [diff] [blame] | 591 | uint16_t window_size() const; |
Max | 9d7357e | 2017-12-14 15:02:33 +0100 | [diff] [blame] | 592 | void set_window_size(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 593 | void update_coding_scheme_counter_dl(const GprsCodingScheme cs); |
Aravind Sirsikar | 8e70bb5 | 2016-09-15 17:51:16 +0530 | [diff] [blame] | 594 | |
Daniel Willmann | cf706b0 | 2014-08-07 17:35:22 +0200 | [diff] [blame] | 595 | /* TODO: add the gettimeofday as parameter */ |
| 596 | struct msgb *llc_dequeue(bssgp_bvc_ctx *bctx); |
| 597 | |
Daniel Willmann | 6a8a1dc | 2014-08-07 15:14:08 +0200 | [diff] [blame] | 598 | /* Please note that all variables here will be reset when changing |
| 599 | * from WAIT RELEASE back to FLOW state (re-use of TBF). |
| 600 | * All states that need reset must be in this struct, so this is why |
| 601 | * variables are in both (dl and ul) structs and not outside union. |
| 602 | */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 603 | int32_t m_tx_counter; /* count all transmitted blocks */ |
| 604 | uint8_t m_wait_confirm; /* wait for CCCH IMM.ASS cnf */ |
Jacob Erlbeck | 7c44415 | 2015-03-12 12:08:54 +0100 | [diff] [blame] | 605 | bool m_dl_ack_requested; |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 606 | int32_t m_last_dl_poll_fn; |
Jacob Erlbeck | 3bed5d1 | 2015-03-19 11:22:38 +0100 | [diff] [blame] | 607 | int32_t m_last_dl_drained_fn; |
Daniel Willmann | 6a8a1dc | 2014-08-07 15:14:08 +0200 | [diff] [blame] | 608 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 609 | struct BandWidth { |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 610 | struct timeval dl_bw_tv; /* timestamp for dl bw calculation */ |
| 611 | uint32_t dl_bw_octets; /* number of octets since bw_tv */ |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 612 | uint32_t dl_throughput; /* throughput to be displayed in stats */ |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 613 | |
| 614 | struct timeval dl_loss_tv; /* timestamp for loss calculation */ |
| 615 | uint16_t dl_loss_lost; /* sum of lost packets */ |
| 616 | uint16_t dl_loss_received; /* sum of received packets */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 617 | |
| 618 | BandWidth(); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 619 | } m_bw; |
| 620 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 621 | struct rate_ctr_group *m_dl_gprs_ctrs; |
| 622 | struct rate_ctr_group *m_dl_egprs_ctrs; |
| 623 | |
Daniel Willmann | b8f2601 | 2014-07-30 19:12:28 +0200 | [diff] [blame] | 624 | protected: |
Jacob Erlbeck | 2db0f08 | 2015-09-07 18:49:00 +0200 | [diff] [blame] | 625 | struct ana_result { |
| 626 | unsigned received_packets; |
| 627 | unsigned lost_packets; |
| 628 | unsigned received_bytes; |
| 629 | unsigned lost_bytes; |
| 630 | }; |
| 631 | |
Jacob Erlbeck | d675249 | 2016-02-02 18:12:46 +0100 | [diff] [blame] | 632 | int take_next_bsn(uint32_t fn, int previous_bsn, |
Jacob Erlbeck | 64e7b83 | 2016-02-04 15:16:47 +0100 | [diff] [blame] | 633 | bool *may_combine); |
Jacob Erlbeck | d675249 | 2016-02-02 18:12:46 +0100 | [diff] [blame] | 634 | bool restart_bsn_cycle(); |
| 635 | int create_new_bsn(const uint32_t fn, GprsCodingScheme cs); |
Daniel Willmann | b8f2601 | 2014-07-30 19:12:28 +0200 | [diff] [blame] | 636 | struct msgb *create_dl_acked_block(const uint32_t fn, const uint8_t ts, |
Jacob Erlbeck | be314d9 | 2016-02-02 15:32:10 +0100 | [diff] [blame] | 637 | int index, int index2 = -1); |
Daniel Willmann | 3016888 | 2014-08-07 12:48:29 +0200 | [diff] [blame] | 638 | int update_window(const uint8_t ssn, const uint8_t *rbb); |
Jacob Erlbeck | eb08f86 | 2016-02-05 17:07:12 +0100 | [diff] [blame] | 639 | int update_window(unsigned first_bsn, const struct bitvec *rbb); |
Daniel Willmann | 3016888 | 2014-08-07 12:48:29 +0200 | [diff] [blame] | 640 | int maybe_start_new_window(); |
| 641 | bool dl_window_stalled() const; |
Jacob Erlbeck | 409efa1 | 2015-06-12 14:06:09 +0200 | [diff] [blame] | 642 | void reuse_tbf(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 643 | void start_llc_timer(); |
Jacob Erlbeck | 2db0f08 | 2015-09-07 18:49:00 +0200 | [diff] [blame] | 644 | int analyse_errors(char *show_rbb, uint8_t ssn, ana_result *res); |
Jacob Erlbeck | 409efa1 | 2015-06-12 14:06:09 +0200 | [diff] [blame] | 645 | void schedule_next_frame(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 646 | |
Aravind Sirsikar | 50b0970 | 2016-08-22 17:21:10 +0530 | [diff] [blame] | 647 | enum egprs_rlc_dl_reseg_bsn_state egprs_dl_get_data |
| 648 | (int bsn, uint8_t **block_data); |
| 649 | unsigned int get_egprs_dl_spb_status(int bsn); |
| 650 | enum egprs_rlcmac_dl_spb get_egprs_dl_spb(int bsn); |
| 651 | |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 652 | struct osmo_timer_list m_llc_timer; |
Max | ea98b7d | 2018-01-04 15:13:27 +0100 | [diff] [blame] | 653 | |
| 654 | /* Please note that all variables below will be reset when changing |
| 655 | * from WAIT RELEASE back to FLOW state (re-use of TBF). |
| 656 | * All states that need reset must be in this struct, so this is why |
| 657 | * variables are in both (dl and ul) structs and not outside union. |
| 658 | */ |
| 659 | gprs_rlc_dl_window m_window; |
Daniel Willmann | 078bb71 | 2014-07-10 17:44:06 +0200 | [diff] [blame] | 660 | }; |
| 661 | |
| 662 | struct gprs_rlcmac_ul_tbf : public gprs_rlcmac_tbf { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 663 | gprs_rlcmac_ul_tbf(BTS *bts); |
Max | ea98b7d | 2018-01-04 15:13:27 +0100 | [diff] [blame] | 664 | gprs_rlc_ul_window *window(); |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 665 | struct msgb *create_ul_ack(uint32_t fn, uint8_t ts); |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 666 | bool ctrl_ack_to_toggle(); |
| 667 | bool handle_ctrl_ack(); |
Max | 25a3ca4 | 2017-12-13 18:47:52 +0100 | [diff] [blame] | 668 | void enable_egprs(); |
Daniel Willmann | 350f64d | 2014-08-07 14:54:11 +0200 | [diff] [blame] | 669 | /* blocks were acked */ |
Jacob Erlbeck | b3100e1 | 2015-12-14 13:36:13 +0100 | [diff] [blame] | 670 | int rcv_data_block_acknowledged( |
Jacob Erlbeck | f2ba4cb | 2016-01-07 18:59:28 +0100 | [diff] [blame] | 671 | const struct gprs_rlc_data_info *rlc, |
Jacob Erlbeck | fc1b3e6 | 2016-01-11 09:58:11 +0100 | [diff] [blame] | 672 | uint8_t *data, struct pcu_l1_meas *meas); |
Jacob Erlbeck | b3100e1 | 2015-12-14 13:36:13 +0100 | [diff] [blame] | 673 | |
Daniel Willmann | 350f64d | 2014-08-07 14:54:11 +0200 | [diff] [blame] | 674 | |
Daniel Willmann | e2732e2 | 2014-08-07 17:32:01 +0200 | [diff] [blame] | 675 | /* TODO: extract LLC class? */ |
| 676 | int assemble_forward_llc(const gprs_rlc_data *data); |
| 677 | int snd_ul_ud(); |
| 678 | |
Aravind Sirsikar | 505a86d | 2016-07-26 18:26:21 +0530 | [diff] [blame] | 679 | egprs_rlc_ul_reseg_bsn_state handle_egprs_ul_spb( |
| 680 | const struct gprs_rlc_data_info *rlc, |
| 681 | struct gprs_rlc_data *block, |
| 682 | uint8_t *data, const uint8_t block_idx); |
| 683 | |
| 684 | egprs_rlc_ul_reseg_bsn_state handle_egprs_ul_first_seg( |
| 685 | const struct gprs_rlc_data_info *rlc, |
| 686 | struct gprs_rlc_data *block, |
| 687 | uint8_t *data, const uint8_t block_idx); |
| 688 | |
| 689 | egprs_rlc_ul_reseg_bsn_state handle_egprs_ul_second_seg( |
| 690 | const struct gprs_rlc_data_info *rlc, |
| 691 | struct gprs_rlc_data *block, |
| 692 | uint8_t *data, const uint8_t block_idx); |
| 693 | |
Max | a4f570f | 2017-12-15 11:21:57 +0100 | [diff] [blame] | 694 | uint16_t window_size() const; |
Max | 9d7357e | 2017-12-14 15:02:33 +0100 | [diff] [blame] | 695 | void set_window_size(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 696 | void update_coding_scheme_counter_ul(const GprsCodingScheme cs); |
| 697 | |
Daniel Willmann | 6a8a1dc | 2014-08-07 15:14:08 +0200 | [diff] [blame] | 698 | /* Please note that all variables here will be reset when changing |
| 699 | * from WAIT RELEASE back to FLOW state (re-use of TBF). |
| 700 | * All states that need reset must be in this struct, so this is why |
| 701 | * variables are in both (dl and ul) structs and not outside union. |
| 702 | */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 703 | int32_t m_rx_counter; /* count all received blocks */ |
| 704 | uint8_t m_n3103; /* N3103 counter */ |
| 705 | uint8_t m_usf[8]; /* list USFs per PDCH (timeslot) */ |
| 706 | uint8_t m_contention_resolution_done; /* set after done */ |
| 707 | uint8_t m_final_ack_sent; /* set if we sent final ack */ |
Daniel Willmann | 6a8a1dc | 2014-08-07 15:14:08 +0200 | [diff] [blame] | 708 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 709 | struct rate_ctr_group *m_ul_gprs_ctrs; |
| 710 | struct rate_ctr_group *m_ul_egprs_ctrs; |
| 711 | |
Daniel Willmann | 350f64d | 2014-08-07 14:54:11 +0200 | [diff] [blame] | 712 | protected: |
Jacob Erlbeck | f2ba4cb | 2016-01-07 18:59:28 +0100 | [diff] [blame] | 713 | void maybe_schedule_uplink_acknack(const gprs_rlc_data_info *rlc); |
Max | ea98b7d | 2018-01-04 15:13:27 +0100 | [diff] [blame] | 714 | |
| 715 | /* Please note that all variables below will be reset when changing |
| 716 | * from WAIT RELEASE back to FLOW state (re-use of TBF). |
| 717 | * All states that need reset must be in this struct, so this is why |
| 718 | * variables are in both (dl and ul) structs and not outside union. |
| 719 | */ |
| 720 | gprs_rlc_ul_window m_window; |
Daniel Willmann | 078bb71 | 2014-07-10 17:44:06 +0200 | [diff] [blame] | 721 | }; |
| 722 | |
Max | 701afa4 | 2017-12-01 17:13:22 +0100 | [diff] [blame] | 723 | #ifdef __cplusplus |
| 724 | extern "C" { |
| 725 | #endif |
| 726 | void update_tbf_ta(struct gprs_rlcmac_ul_tbf *tbf, int8_t ta_delta); |
| 727 | void set_tbf_ta(struct gprs_rlcmac_ul_tbf *tbf, uint8_t ta); |
| 728 | #ifdef __cplusplus |
| 729 | } |
| 730 | #endif |
| 731 | |
Jacob Erlbeck | ac89a55 | 2015-06-29 14:18:46 +0200 | [diff] [blame] | 732 | inline enum gprs_rlcmac_tbf_direction reverse(enum gprs_rlcmac_tbf_direction dir) |
| 733 | { |
| 734 | return (enum gprs_rlcmac_tbf_direction) |
| 735 | ((int)GPRS_RLCMAC_UL_TBF - (int)dir + (int)GPRS_RLCMAC_DL_TBF); |
| 736 | } |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 737 | |
Max | a4f570f | 2017-12-15 11:21:57 +0100 | [diff] [blame] | 738 | inline uint16_t gprs_rlcmac_ul_tbf::window_size() const |
| 739 | { |
| 740 | return m_window.ws(); |
| 741 | } |
| 742 | |
| 743 | inline uint16_t gprs_rlcmac_dl_tbf::window_size() const |
| 744 | { |
| 745 | return m_window.ws(); |
| 746 | } |
| 747 | |
Max | 25a3ca4 | 2017-12-13 18:47:52 +0100 | [diff] [blame] | 748 | inline void gprs_rlcmac_ul_tbf::enable_egprs() |
| 749 | { |
| 750 | m_window.set_sns(RLC_EGPRS_SNS); |
| 751 | gprs_rlcmac_tbf::enable_egprs(); |
| 752 | } |
| 753 | |
| 754 | inline void gprs_rlcmac_dl_tbf::enable_egprs() |
| 755 | { |
| 756 | m_window.set_sns(RLC_EGPRS_SNS); |
| 757 | gprs_rlcmac_tbf::enable_egprs(); |
| 758 | } |
| 759 | |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 760 | inline gprs_rlcmac_ul_tbf *as_ul_tbf(gprs_rlcmac_tbf *tbf) |
| 761 | { |
| 762 | if (tbf && tbf->direction == GPRS_RLCMAC_UL_TBF) |
| 763 | return static_cast<gprs_rlcmac_ul_tbf *>(tbf); |
| 764 | else |
| 765 | return NULL; |
| 766 | } |
| 767 | |
| 768 | inline gprs_rlcmac_dl_tbf *as_dl_tbf(gprs_rlcmac_tbf *tbf) |
| 769 | { |
| 770 | if (tbf && tbf->direction == GPRS_RLCMAC_DL_TBF) |
| 771 | return static_cast<gprs_rlcmac_dl_tbf *>(tbf); |
| 772 | else |
| 773 | return NULL; |
| 774 | } |
| 775 | |
Max | 9d7357e | 2017-12-14 15:02:33 +0100 | [diff] [blame] | 776 | uint16_t egprs_window_size(const struct gprs_rlcmac_bts *bts_data, uint8_t slots); |
| 777 | |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 778 | #endif |