Neels Hofmeyr | 1048516 | 2018-02-13 23:22:03 +0100 | [diff] [blame] | 1 | /* (C) 2008-2018 by Harald Welte <laforge@gnumonks.org> |
Harald Welte | 8470bf2 | 2008-12-25 23:28:35 +0000 | [diff] [blame] | 2 | * |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 3 | * All Rights Reserved |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 6 | * it under the terms of the GNU Affero General Public License as published by |
| 7 | * the Free Software Foundation; either version 3 of the License, or |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 13 | * GNU Affero General Public License for more details. |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 14 | * |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 15 | * You should have received a copy of the GNU Affero General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 17 | * |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | #include <stdlib.h> |
Harald Welte | 51f3845 | 2009-02-24 22:36:40 +0000 | [diff] [blame] | 22 | #include <stdio.h> |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 23 | #include <string.h> |
Harald Welte | fcd2445 | 2009-06-20 18:15:19 +0200 | [diff] [blame] | 24 | #include <errno.h> |
Harald Welte | 4258182 | 2009-08-08 16:12:58 +0200 | [diff] [blame] | 25 | #include <ctype.h> |
Max | c08ee71 | 2016-05-11 12:45:13 +0200 | [diff] [blame] | 26 | #include <stdbool.h> |
Harald Welte | 97a282b | 2010-03-14 15:37:43 +0800 | [diff] [blame] | 27 | #include <netinet/in.h> |
| 28 | |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 29 | #include <osmocom/core/linuxlist.h> |
| 30 | #include <osmocom/core/talloc.h> |
| 31 | #include <osmocom/gsm/gsm_utils.h> |
Harald Welte | 867d9f3 | 2011-05-23 20:30:39 +0200 | [diff] [blame] | 32 | #include <osmocom/gsm/abis_nm.h> |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 33 | #include <osmocom/core/statistics.h> |
Max | c08ee71 | 2016-05-11 12:45:13 +0200 | [diff] [blame] | 34 | #include <osmocom/gsm/protocol/gsm_04_08.h> |
Neels Hofmeyr | 7b65688 | 2017-07-09 22:09:18 +0200 | [diff] [blame] | 35 | #include <osmocom/gsm/gsm48.h> |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 36 | |
Neels Hofmeyr | c016479 | 2017-09-04 15:15:32 +0200 | [diff] [blame] | 37 | #include <osmocom/bsc/gsm_data.h> |
| 38 | #include <osmocom/bsc/bsc_msc_data.h> |
| 39 | #include <osmocom/bsc/abis_nm.h> |
Neels Hofmeyr | e25018b | 2017-11-27 21:29:33 +0100 | [diff] [blame] | 40 | #include <osmocom/bsc/handover_cfg.h> |
Holger Hans Peter Freyther | ed83286 | 2010-06-28 18:20:22 +0800 | [diff] [blame] | 41 | |
Neels Hofmeyr | cc6240a | 2018-02-13 21:21:42 +0100 | [diff] [blame] | 42 | void *tall_bsc_ctx = NULL; |
Andreas Eversberg | 8226fa7 | 2009-06-29 15:19:38 +0200 | [diff] [blame] | 43 | |
Harald Welte | 39315c4 | 2010-01-10 18:01:52 +0100 | [diff] [blame] | 44 | static LLIST_HEAD(bts_models); |
| 45 | |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 46 | void set_ts_e1link(struct gsm_bts_trx_ts *ts, uint8_t e1_nr, |
| 47 | uint8_t e1_ts, uint8_t e1_ts_ss) |
Harald Welte | cd06bfb | 2009-02-10 17:33:56 +0000 | [diff] [blame] | 48 | { |
| 49 | ts->e1_link.e1_nr = e1_nr; |
| 50 | ts->e1_link.e1_ts = e1_ts; |
| 51 | ts->e1_link.e1_ts_ss = e1_ts_ss; |
| 52 | } |
| 53 | |
Harald Welte | 39315c4 | 2010-01-10 18:01:52 +0100 | [diff] [blame] | 54 | static struct gsm_bts_model *bts_model_find(enum gsm_bts_type type) |
| 55 | { |
| 56 | struct gsm_bts_model *model; |
| 57 | |
| 58 | llist_for_each_entry(model, &bts_models, list) { |
| 59 | if (model->type == type) |
| 60 | return model; |
| 61 | } |
| 62 | |
| 63 | return NULL; |
| 64 | } |
| 65 | |
| 66 | int gsm_bts_model_register(struct gsm_bts_model *model) |
| 67 | { |
| 68 | if (bts_model_find(model->type)) |
| 69 | return -EEXIST; |
| 70 | |
Harald Welte | 867d9f3 | 2011-05-23 20:30:39 +0200 | [diff] [blame] | 71 | tlv_def_patch(&model->nm_att_tlvdef, &abis_nm_att_tlvdef); |
Harald Welte | 39315c4 | 2010-01-10 18:01:52 +0100 | [diff] [blame] | 72 | llist_add_tail(&model->list, &bts_models); |
| 73 | return 0; |
| 74 | } |
| 75 | |
Harald Welte | e555c2b | 2012-08-17 13:02:12 +0200 | [diff] [blame] | 76 | const struct value_string bts_type_descs[_NUM_GSM_BTS_TYPE+1] = { |
| 77 | { GSM_BTS_TYPE_UNKNOWN, "Unknown BTS Type" }, |
| 78 | { GSM_BTS_TYPE_BS11, "Siemens BTS (BS-11 or compatible)" }, |
| 79 | { GSM_BTS_TYPE_NANOBTS, "ip.access nanoBTS or compatible" }, |
| 80 | { GSM_BTS_TYPE_RBS2000, "Ericsson RBS2000 Series" }, |
Harald Welte | e555c2b | 2012-08-17 13:02:12 +0200 | [diff] [blame] | 81 | { GSM_BTS_TYPE_NOKIA_SITE, "Nokia {Metro,Ultra,In}Site" }, |
Max | f9685c1 | 2017-03-23 12:01:07 +0100 | [diff] [blame] | 82 | { GSM_BTS_TYPE_OSMOBTS, "sysmocom sysmoBTS" }, |
Harald Welte | e555c2b | 2012-08-17 13:02:12 +0200 | [diff] [blame] | 83 | { 0, NULL } |
| 84 | }; |
| 85 | |
Harald Welte | 6e670aa | 2010-01-07 20:44:32 +0100 | [diff] [blame] | 86 | struct gsm_bts_trx *gsm_bts_trx_by_nr(struct gsm_bts *bts, int nr) |
| 87 | { |
| 88 | struct gsm_bts_trx *trx; |
| 89 | |
| 90 | llist_for_each_entry(trx, &bts->trx_list, list) { |
| 91 | if (trx->nr == nr) |
| 92 | return trx; |
| 93 | } |
| 94 | return NULL; |
| 95 | } |
| 96 | |
Harald Welte | be99149 | 2009-05-23 13:56:40 +0000 | [diff] [blame] | 97 | /* Search for a BTS in the given Location Area; optionally start searching |
| 98 | * with start_bts (for continuing to search after the first result) */ |
| 99 | struct gsm_bts *gsm_bts_by_lac(struct gsm_network *net, unsigned int lac, |
| 100 | struct gsm_bts *start_bts) |
| 101 | { |
| 102 | int i; |
| 103 | struct gsm_bts *bts; |
| 104 | int skip = 0; |
| 105 | |
| 106 | if (start_bts) |
| 107 | skip = 1; |
| 108 | |
| 109 | for (i = 0; i < net->num_bts; i++) { |
Harald Welte | e441d9c | 2009-06-21 16:17:15 +0200 | [diff] [blame] | 110 | bts = gsm_bts_num(net, i); |
Harald Welte | be99149 | 2009-05-23 13:56:40 +0000 | [diff] [blame] | 111 | |
| 112 | if (skip) { |
| 113 | if (start_bts == bts) |
| 114 | skip = 0; |
| 115 | continue; |
| 116 | } |
| 117 | |
Holger Hans Peter Freyther | e48b956 | 2009-10-01 04:07:15 +0200 | [diff] [blame] | 118 | if (lac == GSM_LAC_RESERVED_ALL_BTS || bts->location_area_code == lac) |
Harald Welte | be99149 | 2009-05-23 13:56:40 +0000 | [diff] [blame] | 119 | return bts; |
| 120 | } |
| 121 | return NULL; |
| 122 | } |
Harald Welte | fcd2445 | 2009-06-20 18:15:19 +0200 | [diff] [blame] | 123 | |
Harald Welte | 4511d89 | 2010-04-18 15:51:20 +0200 | [diff] [blame] | 124 | static const struct value_string bts_gprs_mode_names[] = { |
| 125 | { BTS_GPRS_NONE, "none" }, |
| 126 | { BTS_GPRS_GPRS, "gprs" }, |
| 127 | { BTS_GPRS_EGPRS, "egprs" }, |
| 128 | { 0, NULL } |
| 129 | }; |
| 130 | |
Holger Hans Peter Freyther | 4e13a8f | 2015-01-31 22:16:00 +0100 | [diff] [blame] | 131 | enum bts_gprs_mode bts_gprs_mode_parse(const char *arg, int *valid) |
Harald Welte | 4511d89 | 2010-04-18 15:51:20 +0200 | [diff] [blame] | 132 | { |
Holger Hans Peter Freyther | 4e13a8f | 2015-01-31 22:16:00 +0100 | [diff] [blame] | 133 | int rc; |
| 134 | |
| 135 | rc = get_string_value(bts_gprs_mode_names, arg); |
| 136 | if (valid) |
| 137 | *valid = rc != -EINVAL; |
| 138 | return rc; |
Harald Welte | 4511d89 | 2010-04-18 15:51:20 +0200 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | const char *bts_gprs_mode_name(enum bts_gprs_mode mode) |
| 142 | { |
| 143 | return get_value_string(bts_gprs_mode_names, mode); |
| 144 | } |
| 145 | |
Holger Hans Peter Freyther | 4e13a8f | 2015-01-31 22:16:00 +0100 | [diff] [blame] | 146 | int bts_gprs_mode_is_compat(struct gsm_bts *bts, enum bts_gprs_mode mode) |
| 147 | { |
| 148 | if (mode != BTS_GPRS_NONE && |
Max | 71d082b | 2017-05-30 15:03:38 +0200 | [diff] [blame] | 149 | !gsm_btsmodel_has_feature(bts->model, BTS_FEAT_GPRS)) { |
Holger Hans Peter Freyther | 4e13a8f | 2015-01-31 22:16:00 +0100 | [diff] [blame] | 150 | return 0; |
| 151 | } |
| 152 | if (mode == BTS_GPRS_EGPRS && |
Max | 71d082b | 2017-05-30 15:03:38 +0200 | [diff] [blame] | 153 | !gsm_btsmodel_has_feature(bts->model, BTS_FEAT_EGPRS)) { |
Holger Hans Peter Freyther | 4e13a8f | 2015-01-31 22:16:00 +0100 | [diff] [blame] | 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | return 1; |
| 158 | } |
| 159 | |
Max | 71d082b | 2017-05-30 15:03:38 +0200 | [diff] [blame] | 160 | int gsm_btsmodel_set_feature(struct gsm_bts_model *model, enum gsm_bts_features feat) |
Harald Welte | f3d8e92 | 2010-06-14 22:44:42 +0200 | [diff] [blame] | 161 | { |
Max | aef6838 | 2017-05-31 12:15:54 +0200 | [diff] [blame] | 162 | OSMO_ASSERT(_NUM_BTS_FEAT < MAX_BTS_FEATURES); |
Max | 71d082b | 2017-05-30 15:03:38 +0200 | [diff] [blame] | 163 | return bitvec_set_bit_pos(&model->features, feat, 1); |
Harald Welte | f3d8e92 | 2010-06-14 22:44:42 +0200 | [diff] [blame] | 164 | } |
| 165 | |
Max | 71d082b | 2017-05-30 15:03:38 +0200 | [diff] [blame] | 166 | bool gsm_btsmodel_has_feature(struct gsm_bts_model *model, enum gsm_bts_features feat) |
Harald Welte | f3d8e92 | 2010-06-14 22:44:42 +0200 | [diff] [blame] | 167 | { |
Max | aef6838 | 2017-05-31 12:15:54 +0200 | [diff] [blame] | 168 | OSMO_ASSERT(_NUM_BTS_FEAT < MAX_BTS_FEATURES); |
Max | 71d082b | 2017-05-30 15:03:38 +0200 | [diff] [blame] | 169 | return bitvec_get_bit_pos(&model->features, feat); |
Harald Welte | f3d8e92 | 2010-06-14 22:44:42 +0200 | [diff] [blame] | 170 | } |
| 171 | |
Harald Welte | 39315c4 | 2010-01-10 18:01:52 +0100 | [diff] [blame] | 172 | int gsm_set_bts_type(struct gsm_bts *bts, enum gsm_bts_type type) |
Harald Welte (local) | 7b37d97 | 2009-12-27 20:56:38 +0100 | [diff] [blame] | 173 | { |
Harald Welte | 39315c4 | 2010-01-10 18:01:52 +0100 | [diff] [blame] | 174 | struct gsm_bts_model *model; |
| 175 | |
| 176 | model = bts_model_find(type); |
| 177 | if (!model) |
| 178 | return -EINVAL; |
| 179 | |
Harald Welte (local) | 7b37d97 | 2009-12-27 20:56:38 +0100 | [diff] [blame] | 180 | bts->type = type; |
Harald Welte | 39315c4 | 2010-01-10 18:01:52 +0100 | [diff] [blame] | 181 | bts->model = model; |
Harald Welte (local) | 7b37d97 | 2009-12-27 20:56:38 +0100 | [diff] [blame] | 182 | |
Pablo Neira Ayuso | 0d2881a | 2011-05-14 11:32:48 +0200 | [diff] [blame] | 183 | if (model->start && !model->started) { |
| 184 | int ret = model->start(bts->network); |
| 185 | if (ret < 0) |
| 186 | return ret; |
| 187 | |
| 188 | model->started = true; |
| 189 | } |
| 190 | |
Harald Welte (local) | 7b37d97 | 2009-12-27 20:56:38 +0100 | [diff] [blame] | 191 | switch (bts->type) { |
| 192 | case GSM_BTS_TYPE_NANOBTS: |
Max | f9685c1 | 2017-03-23 12:01:07 +0100 | [diff] [blame] | 193 | case GSM_BTS_TYPE_OSMOBTS: |
Harald Welte (local) | 7b37d97 | 2009-12-27 20:56:38 +0100 | [diff] [blame] | 194 | /* Set the default OML Stream ID to 0xff */ |
| 195 | bts->oml_tei = 0xff; |
| 196 | bts->c0->nominal_power = 23; |
| 197 | break; |
Harald Welte | a8e6a65 | 2011-02-13 22:13:28 +0100 | [diff] [blame] | 198 | case GSM_BTS_TYPE_RBS2000: |
| 199 | INIT_LLIST_HEAD(&bts->rbs2000.is.conn_groups); |
Harald Welte | a02085d | 2011-02-13 22:45:02 +0100 | [diff] [blame] | 200 | INIT_LLIST_HEAD(&bts->rbs2000.con.conn_groups); |
Harald Welte | a8e6a65 | 2011-02-13 22:13:28 +0100 | [diff] [blame] | 201 | break; |
Holger Hans Peter Freyther | f02bb20 | 2012-02-03 19:44:37 +0100 | [diff] [blame] | 202 | case GSM_BTS_TYPE_BS11: |
| 203 | case GSM_BTS_TYPE_UNKNOWN: |
| 204 | case GSM_BTS_TYPE_NOKIA_SITE: |
Sipos Csaba | 56e1766 | 2015-02-07 13:27:36 +0100 | [diff] [blame] | 205 | /* Set default BTS reset timer */ |
| 206 | bts->nokia.bts_reset_timer_cnf = 15; |
Holger Hans Peter Freyther | 86f240a | 2012-09-11 11:53:08 +0200 | [diff] [blame] | 207 | case _NUM_GSM_BTS_TYPE: |
Holger Hans Peter Freyther | f02bb20 | 2012-02-03 19:44:37 +0100 | [diff] [blame] | 208 | break; |
Harald Welte (local) | 7b37d97 | 2009-12-27 20:56:38 +0100 | [diff] [blame] | 209 | } |
Harald Welte | 39315c4 | 2010-01-10 18:01:52 +0100 | [diff] [blame] | 210 | |
| 211 | return 0; |
Harald Welte (local) | 7b37d97 | 2009-12-27 20:56:38 +0100 | [diff] [blame] | 212 | } |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 213 | |
| 214 | struct gsm_bts *gsm_bts_alloc_register(struct gsm_network *net, enum gsm_bts_type type, |
Harald Welte | a2bbc5e | 2015-11-20 10:43:31 +0100 | [diff] [blame] | 215 | uint8_t bsic) |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 216 | { |
| 217 | struct gsm_bts_model *model = bts_model_find(type); |
| 218 | struct gsm_bts *bts; |
| 219 | |
Harald Welte | 2830764 | 2011-06-06 17:52:56 +0200 | [diff] [blame] | 220 | if (!model && type != GSM_BTS_TYPE_UNKNOWN) |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 221 | return NULL; |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 222 | |
Alexander Chemeris | 0796a6c | 2017-07-11 01:42:41 +0630 | [diff] [blame] | 223 | bts = gsm_bts_alloc(net, net->num_bts); |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 224 | if (!bts) |
| 225 | return NULL; |
| 226 | |
Alexander Chemeris | 0796a6c | 2017-07-11 01:42:41 +0630 | [diff] [blame] | 227 | net->num_bts++; |
| 228 | |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 229 | bts->type = type; |
| 230 | bts->model = model; |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 231 | bts->bsic = bsic; |
Max | c08ee71 | 2016-05-11 12:45:13 +0200 | [diff] [blame] | 232 | bts->dtxu = GSM48_DTX_SHALL_NOT_BE_USED; |
| 233 | bts->dtxd = false; |
Max | 292ec58 | 2016-07-28 11:55:37 +0200 | [diff] [blame] | 234 | bts->gprs.ctrl_ack_type_use_block = true; /* use RLC/MAC control block */ |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 235 | bts->neigh_list_manual_mode = 0; |
Pau Espin Pedrol | e8dda5f | 2017-11-23 19:06:09 +0100 | [diff] [blame] | 236 | bts->early_classmark_allowed_3g = true; /* 3g Early Classmark Sending controlled by bts->early_classmark_allowed param */ |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 237 | bts->si_common.cell_sel_par.cell_resel_hyst = 2; /* 4 dB */ |
| 238 | bts->si_common.cell_sel_par.rxlev_acc_min = 0; |
Max | 59a1bf3 | 2016-04-15 16:04:46 +0200 | [diff] [blame] | 239 | bts->si_common.si2quater_neigh_list.arfcn = bts->si_common.data.earfcn_list; |
| 240 | bts->si_common.si2quater_neigh_list.meas_bw = bts->si_common.data.meas_bw_list; |
| 241 | bts->si_common.si2quater_neigh_list.length = MAX_EARFCN_LIST; |
| 242 | bts->si_common.si2quater_neigh_list.thresh_hi = 0; |
| 243 | osmo_earfcn_init(&bts->si_common.si2quater_neigh_list); |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 244 | bts->si_common.neigh_list.data = bts->si_common.data.neigh_list; |
| 245 | bts->si_common.neigh_list.data_len = |
| 246 | sizeof(bts->si_common.data.neigh_list); |
| 247 | bts->si_common.si5_neigh_list.data = bts->si_common.data.si5_neigh_list; |
| 248 | bts->si_common.si5_neigh_list.data_len = |
| 249 | sizeof(bts->si_common.data.si5_neigh_list); |
| 250 | bts->si_common.cell_alloc.data = bts->si_common.data.cell_alloc; |
| 251 | bts->si_common.cell_alloc.data_len = |
| 252 | sizeof(bts->si_common.data.cell_alloc); |
| 253 | bts->si_common.rach_control.re = 1; /* no re-establishment */ |
| 254 | bts->si_common.rach_control.tx_integer = 9; /* 12 slots spread - 217/115 slots delay */ |
| 255 | bts->si_common.rach_control.max_trans = 3; /* 7 retransmissions */ |
| 256 | bts->si_common.rach_control.t2 = 4; /* no emergency calls */ |
Andreas Eversberg | 2ee7ecd | 2012-10-13 07:27:47 +0200 | [diff] [blame] | 257 | bts->si_common.chan_desc.att = 1; /* attachment required */ |
| 258 | bts->si_common.chan_desc.bs_pa_mfrms = RSL_BS_PA_MFRMS_5; /* paging frames */ |
| 259 | bts->si_common.chan_desc.bs_ag_blks_res = 1; /* reserved AGCH blocks */ |
Neels Hofmeyr | ce4d88b | 2017-05-08 15:12:20 +0200 | [diff] [blame] | 260 | bts->si_common.chan_desc.t3212 = net->t3212; /* Use network's current value */ |
Harald Welte | 2f8b9d2 | 2017-06-18 11:12:13 +0300 | [diff] [blame] | 261 | gsm_bts_set_radio_link_timeout(bts, 32); /* Use RADIO LINK TIMEOUT of 32 */ |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 262 | |
| 263 | llist_add_tail(&bts->list, &net->bts_list); |
| 264 | |
| 265 | INIT_LLIST_HEAD(&bts->abis_queue); |
| 266 | |
Daniel Willmann | 47b5b3e | 2011-08-05 13:51:27 +0200 | [diff] [blame] | 267 | INIT_LLIST_HEAD(&bts->loc_list); |
| 268 | |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 269 | return bts; |
| 270 | } |
| 271 | |
| 272 | void gprs_ra_id_by_bts(struct gprs_ra_id *raid, struct gsm_bts *bts) |
| 273 | { |
Neels Hofmeyr | 0a5a47a | 2018-03-01 19:48:54 +0100 | [diff] [blame] | 274 | *raid = (struct gprs_ra_id){ |
Neels Hofmeyr | f93970b | 2018-03-05 02:09:40 +0100 | [diff] [blame] | 275 | .mcc = bts->network->plmn.mcc, |
| 276 | .mnc = bts->network->plmn.mnc, |
| 277 | .mnc_3_digits = bts->network->plmn.mnc_3_digits, |
Neels Hofmeyr | 0a5a47a | 2018-03-01 19:48:54 +0100 | [diff] [blame] | 278 | .lac = bts->location_area_code, |
| 279 | .rac = bts->gprs.rac, |
| 280 | }; |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 281 | } |
| 282 | |
Neels Hofmeyr | 4d358c0 | 2018-02-22 03:19:05 +0100 | [diff] [blame] | 283 | void gsm48_ra_id_by_bts(struct gsm48_ra_id *buf, struct gsm_bts *bts) |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 284 | { |
| 285 | struct gprs_ra_id raid; |
| 286 | |
| 287 | gprs_ra_id_by_bts(&raid, bts); |
Neels Hofmeyr | 4d358c0 | 2018-02-22 03:19:05 +0100 | [diff] [blame] | 288 | gsm48_encode_ra(buf, &raid); |
Harald Welte | 3300c01 | 2011-06-05 13:31:33 +0200 | [diff] [blame] | 289 | } |
Holger Hans Peter Freyther | 06c9da6 | 2011-06-09 21:48:49 +0200 | [diff] [blame] | 290 | |
| 291 | int gsm_parse_reg(void *ctx, regex_t *reg, char **str, int argc, const char **argv) |
| 292 | { |
| 293 | int ret; |
| 294 | |
| 295 | ret = 0; |
| 296 | if (*str) { |
| 297 | talloc_free(*str); |
| 298 | *str = NULL; |
| 299 | } |
| 300 | regfree(reg); |
| 301 | |
| 302 | if (argc > 0) { |
| 303 | *str = talloc_strdup(ctx, argv[0]); |
| 304 | ret = regcomp(reg, argv[0], 0); |
| 305 | |
| 306 | /* handle compilation failures */ |
| 307 | if (ret != 0) { |
| 308 | talloc_free(*str); |
| 309 | *str = NULL; |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | return ret; |
| 314 | } |
| 315 | |
Holger Hans Peter Freyther | c22930e | 2014-12-17 14:46:17 +0100 | [diff] [blame] | 316 | /* Assume there are only 256 possible bts */ |
| 317 | osmo_static_assert(sizeof(((struct gsm_bts *) 0)->nr) == 1, _bts_nr_is_256); |
| 318 | static void depends_calc_index_bit(int bts_nr, int *idx, int *bit) |
| 319 | { |
| 320 | *idx = bts_nr / (8 * 4); |
| 321 | *bit = bts_nr % (8 * 4); |
| 322 | } |
| 323 | |
| 324 | void bts_depend_mark(struct gsm_bts *bts, int dep) |
| 325 | { |
| 326 | int idx, bit; |
| 327 | depends_calc_index_bit(dep, &idx, &bit); |
| 328 | |
| 329 | bts->depends_on[idx] |= 1 << bit; |
| 330 | } |
| 331 | |
| 332 | void bts_depend_clear(struct gsm_bts *bts, int dep) |
| 333 | { |
| 334 | int idx, bit; |
| 335 | depends_calc_index_bit(dep, &idx, &bit); |
| 336 | |
| 337 | bts->depends_on[idx] &= ~(1 << bit); |
| 338 | } |
| 339 | |
Holger Hans Peter Freyther | f7e23c5 | 2014-12-17 15:44:32 +0100 | [diff] [blame] | 340 | int bts_depend_is_depedency(struct gsm_bts *base, struct gsm_bts *other) |
Holger Hans Peter Freyther | c22930e | 2014-12-17 14:46:17 +0100 | [diff] [blame] | 341 | { |
| 342 | int idx, bit; |
| 343 | depends_calc_index_bit(other->nr, &idx, &bit); |
| 344 | |
| 345 | /* Check if there is a depends bit */ |
| 346 | return (base->depends_on[idx] & (1 << bit)) > 0; |
| 347 | } |
| 348 | |
| 349 | static int bts_is_online(struct gsm_bts *bts) |
| 350 | { |
| 351 | /* TODO: support E1 BTS too */ |
| 352 | if (!is_ipaccess_bts(bts)) |
| 353 | return 1; |
| 354 | |
| 355 | if (!bts->oml_link) |
| 356 | return 0; |
| 357 | |
| 358 | return bts->mo.nm_state.operational == NM_OPSTATE_ENABLED; |
| 359 | } |
| 360 | |
| 361 | int bts_depend_check(struct gsm_bts *bts) |
| 362 | { |
| 363 | struct gsm_bts *other_bts; |
| 364 | |
| 365 | llist_for_each_entry(other_bts, &bts->network->bts_list, list) { |
| 366 | if (!bts_depend_is_depedency(bts, other_bts)) |
| 367 | continue; |
| 368 | if (bts_is_online(other_bts)) |
| 369 | continue; |
| 370 | return 0; |
| 371 | } |
| 372 | return 1; |
| 373 | } |
Harald Welte | 2f8b9d2 | 2017-06-18 11:12:13 +0300 | [diff] [blame] | 374 | |
| 375 | /* get the radio link timeout (based on SACCH decode errors, according |
| 376 | * to algorithm specified in TS 05.08 section 5.2. A value of -1 |
| 377 | * indicates we should use an infinitely long timeout, which only works |
| 378 | * with OsmoBTS as the BTS implementation */ |
| 379 | int gsm_bts_get_radio_link_timeout(const struct gsm_bts *bts) |
| 380 | { |
| 381 | const struct gsm48_cell_options *cell_options = &bts->si_common.cell_options; |
| 382 | |
| 383 | if (bts->infinite_radio_link_timeout) |
| 384 | return -1; |
| 385 | else { |
| 386 | /* Encoding as per Table 10.5.21 of TS 04.08 */ |
| 387 | return (cell_options->radio_link_timeout + 1) << 2; |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | /* set the radio link timeout (based on SACCH decode errors, according |
| 392 | * to algorithm specified in TS 05.08 Section 5.2. A value of -1 |
| 393 | * indicates we should use an infinitely long timeout, which only works |
| 394 | * with OsmoBTS as the BTS implementation */ |
| 395 | void gsm_bts_set_radio_link_timeout(struct gsm_bts *bts, int value) |
| 396 | { |
| 397 | struct gsm48_cell_options *cell_options = &bts->si_common.cell_options; |
| 398 | |
| 399 | if (value < 0) |
| 400 | bts->infinite_radio_link_timeout = true; |
| 401 | else { |
| 402 | bts->infinite_radio_link_timeout = false; |
| 403 | /* Encoding as per Table 10.5.21 of TS 04.08 */ |
| 404 | if (value < 4) |
| 405 | value = 4; |
| 406 | if (value > 64) |
| 407 | value = 64; |
| 408 | cell_options->radio_link_timeout = (value >> 2) - 1; |
| 409 | } |
| 410 | } |
Harald Welte | a43e0b4 | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 411 | |
| 412 | bool classmark_is_r99(struct gsm_classmark *cm) |
| 413 | { |
| 414 | int rev_lev = 0; |
| 415 | if (cm->classmark1_set) |
| 416 | rev_lev = cm->classmark1.rev_lev; |
| 417 | else if (cm->classmark2_len > 0) |
| 418 | rev_lev = (cm->classmark2[0] >> 5) & 0x3; |
| 419 | return rev_lev >= 2; |
| 420 | } |
Neels Hofmeyr | 1048516 | 2018-02-13 23:22:03 +0100 | [diff] [blame] | 421 | |
| 422 | static const struct osmo_stat_item_desc bts_stat_desc[] = { |
| 423 | { "chanloadavg", "Channel load average.", "%", 16, 0 }, |
| 424 | { "T3122", "T3122 IMMEDIATE ASSIGNMENT REJECT wait indicator.", "s", 16, GSM_T3122_DEFAULT }, |
| 425 | }; |
| 426 | |
| 427 | static const struct osmo_stat_item_group_desc bts_statg_desc = { |
| 428 | .group_name_prefix = "bts", |
| 429 | .group_description = "base transceiver station", |
| 430 | .class_id = OSMO_STATS_CLASS_GLOBAL, |
| 431 | .num_items = ARRAY_SIZE(bts_stat_desc), |
| 432 | .item_desc = bts_stat_desc, |
| 433 | }; |
| 434 | |
| 435 | void gsm_abis_mo_reset(struct gsm_abis_mo *mo) |
| 436 | { |
| 437 | mo->nm_state.operational = NM_OPSTATE_NULL; |
| 438 | mo->nm_state.availability = NM_AVSTATE_POWER_OFF; |
| 439 | } |
| 440 | |
| 441 | static void gsm_mo_init(struct gsm_abis_mo *mo, struct gsm_bts *bts, |
| 442 | uint8_t obj_class, uint8_t p1, uint8_t p2, uint8_t p3) |
| 443 | { |
| 444 | mo->bts = bts; |
| 445 | mo->obj_class = obj_class; |
| 446 | mo->obj_inst.bts_nr = p1; |
| 447 | mo->obj_inst.trx_nr = p2; |
| 448 | mo->obj_inst.ts_nr = p3; |
| 449 | gsm_abis_mo_reset(mo); |
| 450 | } |
| 451 | |
| 452 | const struct value_string bts_attribute_names[] = { |
| 453 | OSMO_VALUE_STRING(BTS_TYPE_VARIANT), |
| 454 | OSMO_VALUE_STRING(BTS_SUB_MODEL), |
| 455 | OSMO_VALUE_STRING(TRX_PHY_VERSION), |
| 456 | { 0, NULL } |
| 457 | }; |
| 458 | |
| 459 | enum bts_attribute str2btsattr(const char *s) |
| 460 | { |
| 461 | return get_string_value(bts_attribute_names, s); |
| 462 | } |
| 463 | |
| 464 | const char *btsatttr2str(enum bts_attribute v) |
| 465 | { |
| 466 | return get_value_string(bts_attribute_names, v); |
| 467 | } |
| 468 | |
| 469 | const struct value_string osmo_bts_variant_names[_NUM_BTS_VARIANT + 1] = { |
| 470 | { BTS_UNKNOWN, "unknown" }, |
| 471 | { BTS_OSMO_LITECELL15, "osmo-bts-lc15" }, |
| 472 | { BTS_OSMO_OCTPHY, "osmo-bts-octphy" }, |
| 473 | { BTS_OSMO_SYSMO, "osmo-bts-sysmo" }, |
| 474 | { BTS_OSMO_TRX, "omso-bts-trx" }, |
| 475 | { 0, NULL } |
| 476 | }; |
| 477 | |
| 478 | enum gsm_bts_type_variant str2btsvariant(const char *arg) |
| 479 | { |
| 480 | return get_string_value(osmo_bts_variant_names, arg); |
| 481 | } |
| 482 | |
| 483 | const char *btsvariant2str(enum gsm_bts_type_variant v) |
| 484 | { |
| 485 | return get_value_string(osmo_bts_variant_names, v); |
| 486 | } |
| 487 | |
| 488 | const struct value_string bts_type_names[_NUM_GSM_BTS_TYPE + 1] = { |
| 489 | { GSM_BTS_TYPE_UNKNOWN, "unknown" }, |
| 490 | { GSM_BTS_TYPE_BS11, "bs11" }, |
| 491 | { GSM_BTS_TYPE_NANOBTS, "nanobts" }, |
| 492 | { GSM_BTS_TYPE_RBS2000, "rbs2000" }, |
| 493 | { GSM_BTS_TYPE_NOKIA_SITE, "nokia_site" }, |
| 494 | { GSM_BTS_TYPE_OSMOBTS, "sysmobts" }, |
| 495 | { 0, NULL } |
| 496 | }; |
| 497 | |
| 498 | enum gsm_bts_type str2btstype(const char *arg) |
| 499 | { |
| 500 | return get_string_value(bts_type_names, arg); |
| 501 | } |
| 502 | |
| 503 | const char *btstype2str(enum gsm_bts_type type) |
| 504 | { |
| 505 | return get_value_string(bts_type_names, type); |
| 506 | } |
| 507 | |
| 508 | const struct value_string gsm_bts_features_descs[] = { |
| 509 | { BTS_FEAT_HSCSD, "HSCSD" }, |
| 510 | { BTS_FEAT_GPRS, "GPRS" }, |
| 511 | { BTS_FEAT_EGPRS, "EGPRS" }, |
| 512 | { BTS_FEAT_ECSD, "ECSD" }, |
| 513 | { BTS_FEAT_HOPPING, "Frequency Hopping" }, |
| 514 | { BTS_FEAT_MULTI_TSC, "Multi-TSC" }, |
| 515 | { BTS_FEAT_OML_ALERTS, "OML Alerts" }, |
| 516 | { BTS_FEAT_AGCH_PCH_PROP, "AGCH/PCH proportional allocation" }, |
| 517 | { BTS_FEAT_CBCH, "CBCH" }, |
| 518 | { 0, NULL } |
| 519 | }; |
| 520 | |
| 521 | const struct value_string gsm_chreq_descs[] = { |
| 522 | { GSM_CHREQ_REASON_EMERG, "emergency call" }, |
| 523 | { GSM_CHREQ_REASON_PAG, "answer to paging" }, |
| 524 | { GSM_CHREQ_REASON_CALL, "call re-establishment" }, |
| 525 | { GSM_CHREQ_REASON_LOCATION_UPD,"Location updating" }, |
| 526 | { GSM_CHREQ_REASON_PDCH, "one phase packet access" }, |
| 527 | { GSM_CHREQ_REASON_OTHER, "other" }, |
| 528 | { 0, NULL } |
| 529 | }; |
| 530 | |
| 531 | const struct value_string gsm_pchant_names[13] = { |
| 532 | { GSM_PCHAN_NONE, "NONE" }, |
| 533 | { GSM_PCHAN_CCCH, "CCCH" }, |
| 534 | { GSM_PCHAN_CCCH_SDCCH4,"CCCH+SDCCH4" }, |
| 535 | { GSM_PCHAN_TCH_F, "TCH/F" }, |
| 536 | { GSM_PCHAN_TCH_H, "TCH/H" }, |
| 537 | { GSM_PCHAN_SDCCH8_SACCH8C, "SDCCH8" }, |
| 538 | { GSM_PCHAN_PDCH, "PDCH" }, |
| 539 | { GSM_PCHAN_TCH_F_PDCH, "TCH/F_PDCH" }, |
| 540 | { GSM_PCHAN_UNKNOWN, "UNKNOWN" }, |
| 541 | { GSM_PCHAN_CCCH_SDCCH4_CBCH, "CCCH+SDCCH4+CBCH" }, |
| 542 | { GSM_PCHAN_SDCCH8_SACCH8C_CBCH, "SDCCH8+CBCH" }, |
| 543 | { GSM_PCHAN_TCH_F_TCH_H_PDCH, "TCH/F_TCH/H_PDCH" }, |
| 544 | { 0, NULL } |
| 545 | }; |
| 546 | |
| 547 | const struct value_string gsm_pchant_descs[13] = { |
| 548 | { GSM_PCHAN_NONE, "Physical Channel not configured" }, |
| 549 | { GSM_PCHAN_CCCH, "FCCH + SCH + BCCH + CCCH (Comb. IV)" }, |
| 550 | { GSM_PCHAN_CCCH_SDCCH4, |
| 551 | "FCCH + SCH + BCCH + CCCH + 4 SDCCH + 2 SACCH (Comb. V)" }, |
| 552 | { GSM_PCHAN_TCH_F, "TCH/F + FACCH/F + SACCH (Comb. I)" }, |
| 553 | { GSM_PCHAN_TCH_H, "2 TCH/H + 2 FACCH/H + 2 SACCH (Comb. II)" }, |
| 554 | { GSM_PCHAN_SDCCH8_SACCH8C, "8 SDCCH + 4 SACCH (Comb. VII)" }, |
| 555 | { GSM_PCHAN_PDCH, "Packet Data Channel for GPRS/EDGE" }, |
| 556 | { GSM_PCHAN_TCH_F_PDCH, "Dynamic TCH/F or GPRS PDCH" }, |
| 557 | { GSM_PCHAN_UNKNOWN, "Unknown / Unsupported channel combination" }, |
| 558 | { GSM_PCHAN_CCCH_SDCCH4_CBCH, "FCCH + SCH + BCCH + CCCH + CBCH + 3 SDCCH + 2 SACCH (Comb. V)" }, |
| 559 | { GSM_PCHAN_SDCCH8_SACCH8C_CBCH, "7 SDCCH + 4 SACCH + CBCH (Comb. VII)" }, |
| 560 | { GSM_PCHAN_TCH_F_TCH_H_PDCH, "Dynamic TCH/F or TCH/H or GPRS PDCH" }, |
| 561 | { 0, NULL } |
| 562 | }; |
| 563 | |
| 564 | const char *gsm_pchan_name(enum gsm_phys_chan_config c) |
| 565 | { |
| 566 | return get_value_string(gsm_pchant_names, c); |
| 567 | } |
| 568 | |
| 569 | enum gsm_phys_chan_config gsm_pchan_parse(const char *name) |
| 570 | { |
| 571 | return get_string_value(gsm_pchant_names, name); |
| 572 | } |
| 573 | |
| 574 | /* TODO: move to libosmocore, next to gsm_chan_t_names? */ |
| 575 | const char *gsm_lchant_name(enum gsm_chan_t c) |
| 576 | { |
| 577 | return get_value_string(gsm_chan_t_names, c); |
| 578 | } |
| 579 | |
| 580 | static const struct value_string lchan_s_names[] = { |
| 581 | { LCHAN_S_NONE, "NONE" }, |
| 582 | { LCHAN_S_ACT_REQ, "ACTIVATION REQUESTED" }, |
| 583 | { LCHAN_S_ACTIVE, "ACTIVE" }, |
| 584 | { LCHAN_S_INACTIVE, "INACTIVE" }, |
| 585 | { LCHAN_S_REL_REQ, "RELEASE REQUESTED" }, |
| 586 | { LCHAN_S_REL_ERR, "RELEASE DUE ERROR" }, |
| 587 | { LCHAN_S_BROKEN, "BROKEN UNUSABLE" }, |
| 588 | { 0, NULL } |
| 589 | }; |
| 590 | |
| 591 | const char *gsm_lchans_name(enum gsm_lchan_state s) |
| 592 | { |
| 593 | return get_value_string(lchan_s_names, s); |
| 594 | } |
| 595 | |
| 596 | static const struct value_string chreq_names[] = { |
| 597 | { GSM_CHREQ_REASON_EMERG, "EMERGENCY" }, |
| 598 | { GSM_CHREQ_REASON_PAG, "PAGING" }, |
| 599 | { GSM_CHREQ_REASON_CALL, "CALL" }, |
| 600 | { GSM_CHREQ_REASON_LOCATION_UPD,"LOCATION_UPDATE" }, |
| 601 | { GSM_CHREQ_REASON_OTHER, "OTHER" }, |
| 602 | { 0, NULL } |
| 603 | }; |
| 604 | |
| 605 | const char *gsm_chreq_name(enum gsm_chreq_reason_t c) |
| 606 | { |
| 607 | return get_value_string(chreq_names, c); |
| 608 | } |
| 609 | |
| 610 | struct gsm_bts *gsm_bts_num(struct gsm_network *net, int num) |
| 611 | { |
| 612 | struct gsm_bts *bts; |
| 613 | |
| 614 | if (num >= net->num_bts) |
| 615 | return NULL; |
| 616 | |
| 617 | llist_for_each_entry(bts, &net->bts_list, list) { |
| 618 | if (bts->nr == num) |
| 619 | return bts; |
| 620 | } |
| 621 | |
| 622 | return NULL; |
| 623 | } |
| 624 | |
| 625 | struct gsm_bts_trx *gsm_bts_trx_alloc(struct gsm_bts *bts) |
| 626 | { |
| 627 | struct gsm_bts_trx *trx = talloc_zero(bts, struct gsm_bts_trx); |
| 628 | int k; |
| 629 | |
| 630 | if (!trx) |
| 631 | return NULL; |
| 632 | |
| 633 | trx->bts = bts; |
| 634 | trx->nr = bts->num_trx++; |
| 635 | trx->mo.nm_state.administrative = NM_STATE_UNLOCKED; |
| 636 | |
| 637 | gsm_mo_init(&trx->mo, bts, NM_OC_RADIO_CARRIER, |
| 638 | bts->nr, trx->nr, 0xff); |
| 639 | gsm_mo_init(&trx->bb_transc.mo, bts, NM_OC_BASEB_TRANSC, |
| 640 | bts->nr, trx->nr, 0xff); |
| 641 | |
| 642 | for (k = 0; k < TRX_NR_TS; k++) { |
| 643 | struct gsm_bts_trx_ts *ts = &trx->ts[k]; |
| 644 | int l; |
| 645 | |
| 646 | ts->trx = trx; |
| 647 | ts->nr = k; |
| 648 | ts->pchan = GSM_PCHAN_NONE; |
| 649 | ts->dyn.pchan_is = GSM_PCHAN_NONE; |
| 650 | ts->dyn.pchan_want = GSM_PCHAN_NONE; |
| 651 | ts->tsc = -1; |
| 652 | |
| 653 | gsm_mo_init(&ts->mo, bts, NM_OC_CHANNEL, |
| 654 | bts->nr, trx->nr, ts->nr); |
| 655 | |
| 656 | ts->hopping.arfcns.data_len = sizeof(ts->hopping.arfcns_data); |
| 657 | ts->hopping.arfcns.data = ts->hopping.arfcns_data; |
| 658 | ts->hopping.ma.data_len = sizeof(ts->hopping.ma_data); |
| 659 | ts->hopping.ma.data = ts->hopping.ma_data; |
| 660 | |
| 661 | for (l = 0; l < TS_MAX_LCHAN; l++) { |
| 662 | struct gsm_lchan *lchan; |
| 663 | char *name; |
| 664 | lchan = &ts->lchan[l]; |
| 665 | |
| 666 | lchan->ts = ts; |
| 667 | lchan->nr = l; |
| 668 | lchan->type = GSM_LCHAN_NONE; |
| 669 | |
| 670 | name = gsm_lchan_name_compute(lchan); |
| 671 | lchan->name = talloc_strdup(trx, name); |
| 672 | } |
| 673 | } |
| 674 | |
| 675 | if (trx->nr != 0) |
| 676 | trx->nominal_power = bts->c0->nominal_power; |
| 677 | |
| 678 | llist_add_tail(&trx->list, &bts->trx_list); |
| 679 | |
| 680 | return trx; |
| 681 | } |
| 682 | |
| 683 | |
| 684 | static const uint8_t bts_nse_timer_default[] = { 3, 3, 3, 3, 30, 3, 10 }; |
| 685 | static const uint8_t bts_cell_timer_default[] = |
| 686 | { 3, 3, 3, 3, 3, 10, 3, 10, 3, 10, 3 }; |
| 687 | static const struct gprs_rlc_cfg rlc_cfg_default = { |
| 688 | .parameter = { |
| 689 | [RLC_T3142] = 20, |
| 690 | [RLC_T3169] = 5, |
| 691 | [RLC_T3191] = 5, |
| 692 | [RLC_T3193] = 160, /* 10ms */ |
| 693 | [RLC_T3195] = 5, |
| 694 | [RLC_N3101] = 10, |
| 695 | [RLC_N3103] = 4, |
| 696 | [RLC_N3105] = 8, |
| 697 | [CV_COUNTDOWN] = 15, |
| 698 | [T_DL_TBF_EXT] = 250 * 10, /* ms */ |
| 699 | [T_UL_TBF_EXT] = 250 * 10, /* ms */ |
| 700 | }, |
| 701 | .paging = { |
| 702 | .repeat_time = 5 * 50, /* ms */ |
| 703 | .repeat_count = 3, |
| 704 | }, |
| 705 | .cs_mask = 0x1fff, |
| 706 | .initial_cs = 2, |
| 707 | .initial_mcs = 6, |
| 708 | }; |
| 709 | |
| 710 | struct gsm_bts *gsm_bts_alloc(struct gsm_network *net, uint8_t bts_num) |
| 711 | { |
| 712 | struct gsm_bts *bts = talloc_zero(net, struct gsm_bts); |
| 713 | int i; |
| 714 | |
| 715 | if (!bts) |
| 716 | return NULL; |
| 717 | |
| 718 | bts->nr = bts_num; |
| 719 | bts->num_trx = 0; |
| 720 | INIT_LLIST_HEAD(&bts->trx_list); |
| 721 | bts->network = net; |
| 722 | |
| 723 | bts->ms_max_power = 15; /* dBm */ |
| 724 | |
| 725 | gsm_mo_init(&bts->mo, bts, NM_OC_BTS, |
| 726 | bts->nr, 0xff, 0xff); |
| 727 | gsm_mo_init(&bts->site_mgr.mo, bts, NM_OC_SITE_MANAGER, |
| 728 | 0xff, 0xff, 0xff); |
| 729 | |
| 730 | for (i = 0; i < ARRAY_SIZE(bts->gprs.nsvc); i++) { |
| 731 | bts->gprs.nsvc[i].bts = bts; |
| 732 | bts->gprs.nsvc[i].id = i; |
| 733 | gsm_mo_init(&bts->gprs.nsvc[i].mo, bts, NM_OC_GPRS_NSVC, |
| 734 | bts->nr, i, 0xff); |
| 735 | } |
| 736 | memcpy(&bts->gprs.nse.timer, bts_nse_timer_default, |
| 737 | sizeof(bts->gprs.nse.timer)); |
| 738 | gsm_mo_init(&bts->gprs.nse.mo, bts, NM_OC_GPRS_NSE, |
| 739 | bts->nr, 0xff, 0xff); |
| 740 | memcpy(&bts->gprs.cell.timer, bts_cell_timer_default, |
| 741 | sizeof(bts->gprs.cell.timer)); |
| 742 | gsm_mo_init(&bts->gprs.cell.mo, bts, NM_OC_GPRS_CELL, |
| 743 | bts->nr, 0xff, 0xff); |
| 744 | memcpy(&bts->gprs.cell.rlc_cfg, &rlc_cfg_default, |
| 745 | sizeof(bts->gprs.cell.rlc_cfg)); |
| 746 | |
| 747 | /* init statistics */ |
| 748 | bts->bts_ctrs = rate_ctr_group_alloc(bts, &bts_ctrg_desc, bts->nr); |
| 749 | if (!bts->bts_ctrs) { |
| 750 | talloc_free(bts); |
| 751 | return NULL; |
| 752 | } |
| 753 | bts->bts_statg = osmo_stat_item_group_alloc(bts, &bts_statg_desc, 0); |
| 754 | |
| 755 | /* create our primary TRX */ |
| 756 | bts->c0 = gsm_bts_trx_alloc(bts); |
| 757 | if (!bts->c0) { |
| 758 | rate_ctr_group_free(bts->bts_ctrs); |
| 759 | osmo_stat_item_group_free(bts->bts_statg); |
| 760 | talloc_free(bts); |
| 761 | return NULL; |
| 762 | } |
| 763 | bts->c0->ts[0].pchan = GSM_PCHAN_CCCH_SDCCH4; |
| 764 | |
| 765 | bts->rach_b_thresh = -1; |
| 766 | bts->rach_ldavg_slots = -1; |
| 767 | |
| 768 | bts->paging.free_chans_need = -1; |
| 769 | INIT_LLIST_HEAD(&bts->paging.pending_requests); |
| 770 | |
| 771 | bts->features.data = &bts->_features_data[0]; |
| 772 | bts->features.data_len = sizeof(bts->_features_data); |
| 773 | |
| 774 | /* si handling */ |
| 775 | bts->bcch_change_mark = 1; |
Stefan Sperling | 6442e43 | 2018-02-06 14:44:54 +0100 | [diff] [blame] | 776 | bts->chan_load_avg = 0; |
Neels Hofmeyr | 1048516 | 2018-02-13 23:22:03 +0100 | [diff] [blame] | 777 | |
| 778 | bts->ho = ho_cfg_init(bts, net->ho); |
| 779 | |
| 780 | /* timer overrides */ |
| 781 | bts->T3122 = 0; /* not overriden by default */ |
| 782 | |
| 783 | return bts; |
| 784 | } |
| 785 | |
| 786 | /* reset the state of all MO in the BTS */ |
| 787 | void gsm_bts_mo_reset(struct gsm_bts *bts) |
| 788 | { |
| 789 | struct gsm_bts_trx *trx; |
| 790 | unsigned int i; |
| 791 | |
| 792 | gsm_abis_mo_reset(&bts->mo); |
| 793 | gsm_abis_mo_reset(&bts->site_mgr.mo); |
| 794 | for (i = 0; i < ARRAY_SIZE(bts->gprs.nsvc); i++) |
| 795 | gsm_abis_mo_reset(&bts->gprs.nsvc[i].mo); |
| 796 | gsm_abis_mo_reset(&bts->gprs.nse.mo); |
| 797 | gsm_abis_mo_reset(&bts->gprs.cell.mo); |
| 798 | |
| 799 | llist_for_each_entry(trx, &bts->trx_list, list) { |
| 800 | gsm_abis_mo_reset(&trx->mo); |
| 801 | gsm_abis_mo_reset(&trx->bb_transc.mo); |
| 802 | |
| 803 | for (i = 0; i < ARRAY_SIZE(trx->ts); i++) { |
| 804 | struct gsm_bts_trx_ts *ts = &trx->ts[i]; |
| 805 | gsm_abis_mo_reset(&ts->mo); |
| 806 | } |
| 807 | } |
| 808 | } |
| 809 | |
| 810 | struct gsm_bts_trx *gsm_bts_trx_num(const struct gsm_bts *bts, int num) |
| 811 | { |
| 812 | struct gsm_bts_trx *trx; |
| 813 | |
| 814 | if (num >= bts->num_trx) |
| 815 | return NULL; |
| 816 | |
| 817 | llist_for_each_entry(trx, &bts->trx_list, list) { |
| 818 | if (trx->nr == num) |
| 819 | return trx; |
| 820 | } |
| 821 | |
| 822 | return NULL; |
| 823 | } |
| 824 | |
| 825 | static char ts2str[255]; |
| 826 | |
| 827 | char *gsm_trx_name(const struct gsm_bts_trx *trx) |
| 828 | { |
| 829 | if (!trx) |
| 830 | snprintf(ts2str, sizeof(ts2str), "(trx=NULL)"); |
| 831 | else |
| 832 | snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d)", |
| 833 | trx->bts->nr, trx->nr); |
| 834 | |
| 835 | return ts2str; |
| 836 | } |
| 837 | |
| 838 | |
| 839 | char *gsm_ts_name(const struct gsm_bts_trx_ts *ts) |
| 840 | { |
| 841 | snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d)", |
| 842 | ts->trx->bts->nr, ts->trx->nr, ts->nr); |
| 843 | |
| 844 | return ts2str; |
| 845 | } |
| 846 | |
| 847 | /*! Log timeslot number with full pchan information */ |
| 848 | char *gsm_ts_and_pchan_name(const struct gsm_bts_trx_ts *ts) |
| 849 | { |
| 850 | switch (ts->pchan) { |
| 851 | case GSM_PCHAN_TCH_F_TCH_H_PDCH: |
| 852 | if (ts->dyn.pchan_is == ts->dyn.pchan_want) |
| 853 | snprintf(ts2str, sizeof(ts2str), |
| 854 | "(bts=%d,trx=%d,ts=%d,pchan=%s as %s)", |
| 855 | ts->trx->bts->nr, ts->trx->nr, ts->nr, |
| 856 | gsm_pchan_name(ts->pchan), |
| 857 | gsm_pchan_name(ts->dyn.pchan_is)); |
| 858 | else |
| 859 | snprintf(ts2str, sizeof(ts2str), |
| 860 | "(bts=%d,trx=%d,ts=%d,pchan=%s" |
| 861 | " switching %s -> %s)", |
| 862 | ts->trx->bts->nr, ts->trx->nr, ts->nr, |
| 863 | gsm_pchan_name(ts->pchan), |
| 864 | gsm_pchan_name(ts->dyn.pchan_is), |
| 865 | gsm_pchan_name(ts->dyn.pchan_want)); |
| 866 | break; |
| 867 | case GSM_PCHAN_TCH_F_PDCH: |
| 868 | if ((ts->flags & TS_F_PDCH_PENDING_MASK) == 0) |
| 869 | snprintf(ts2str, sizeof(ts2str), |
| 870 | "(bts=%d,trx=%d,ts=%d,pchan=%s as %s)", |
| 871 | ts->trx->bts->nr, ts->trx->nr, ts->nr, |
| 872 | gsm_pchan_name(ts->pchan), |
| 873 | (ts->flags & TS_F_PDCH_ACTIVE)? "PDCH" |
| 874 | : "TCH/F"); |
| 875 | else |
| 876 | snprintf(ts2str, sizeof(ts2str), |
| 877 | "(bts=%d,trx=%d,ts=%d,pchan=%s" |
| 878 | " switching %s -> %s)", |
| 879 | ts->trx->bts->nr, ts->trx->nr, ts->nr, |
| 880 | gsm_pchan_name(ts->pchan), |
| 881 | (ts->flags & TS_F_PDCH_ACTIVE)? "PDCH" |
| 882 | : "TCH/F", |
| 883 | (ts->flags & TS_F_PDCH_ACT_PENDING)? "PDCH" |
| 884 | : "TCH/F"); |
| 885 | break; |
| 886 | default: |
| 887 | snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,pchan=%s)", |
| 888 | ts->trx->bts->nr, ts->trx->nr, ts->nr, |
| 889 | gsm_pchan_name(ts->pchan)); |
| 890 | break; |
| 891 | } |
| 892 | |
| 893 | return ts2str; |
| 894 | } |
| 895 | |
| 896 | char *gsm_lchan_name_compute(const struct gsm_lchan *lchan) |
| 897 | { |
| 898 | struct gsm_bts_trx_ts *ts = lchan->ts; |
| 899 | |
| 900 | snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,ss=%d)", |
| 901 | ts->trx->bts->nr, ts->trx->nr, ts->nr, lchan->nr); |
| 902 | |
| 903 | return ts2str; |
| 904 | } |
| 905 | |
| 906 | /* obtain the MO structure for a given object instance */ |
| 907 | static inline struct gsm_abis_mo * |
| 908 | gsm_objclass2mo(struct gsm_bts *bts, uint8_t obj_class, |
| 909 | const struct abis_om_obj_inst *obj_inst) |
| 910 | { |
| 911 | struct gsm_bts_trx *trx; |
| 912 | struct gsm_abis_mo *mo = NULL; |
| 913 | |
| 914 | switch (obj_class) { |
| 915 | case NM_OC_BTS: |
| 916 | mo = &bts->mo; |
| 917 | break; |
| 918 | case NM_OC_RADIO_CARRIER: |
| 919 | if (obj_inst->trx_nr >= bts->num_trx) { |
| 920 | return NULL; |
| 921 | } |
| 922 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 923 | mo = &trx->mo; |
| 924 | break; |
| 925 | case NM_OC_BASEB_TRANSC: |
| 926 | if (obj_inst->trx_nr >= bts->num_trx) { |
| 927 | return NULL; |
| 928 | } |
| 929 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 930 | mo = &trx->bb_transc.mo; |
| 931 | break; |
| 932 | case NM_OC_CHANNEL: |
| 933 | if (obj_inst->trx_nr >= bts->num_trx) { |
| 934 | return NULL; |
| 935 | } |
| 936 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 937 | if (obj_inst->ts_nr >= TRX_NR_TS) |
| 938 | return NULL; |
| 939 | mo = &trx->ts[obj_inst->ts_nr].mo; |
| 940 | break; |
| 941 | case NM_OC_SITE_MANAGER: |
| 942 | mo = &bts->site_mgr.mo; |
| 943 | break; |
| 944 | case NM_OC_BS11: |
| 945 | switch (obj_inst->bts_nr) { |
| 946 | case BS11_OBJ_CCLK: |
| 947 | mo = &bts->bs11.cclk.mo; |
| 948 | break; |
| 949 | case BS11_OBJ_BBSIG: |
| 950 | if (obj_inst->ts_nr > bts->num_trx) |
| 951 | return NULL; |
| 952 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 953 | mo = &trx->bs11.bbsig.mo; |
| 954 | break; |
| 955 | case BS11_OBJ_PA: |
| 956 | if (obj_inst->ts_nr > bts->num_trx) |
| 957 | return NULL; |
| 958 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 959 | mo = &trx->bs11.pa.mo; |
| 960 | break; |
| 961 | default: |
| 962 | return NULL; |
| 963 | } |
| 964 | break; |
| 965 | case NM_OC_BS11_RACK: |
| 966 | mo = &bts->bs11.rack.mo; |
| 967 | break; |
| 968 | case NM_OC_BS11_ENVABTSE: |
| 969 | if (obj_inst->trx_nr >= ARRAY_SIZE(bts->bs11.envabtse)) |
| 970 | return NULL; |
| 971 | mo = &bts->bs11.envabtse[obj_inst->trx_nr].mo; |
| 972 | break; |
| 973 | case NM_OC_GPRS_NSE: |
| 974 | mo = &bts->gprs.nse.mo; |
| 975 | break; |
| 976 | case NM_OC_GPRS_CELL: |
| 977 | mo = &bts->gprs.cell.mo; |
| 978 | break; |
| 979 | case NM_OC_GPRS_NSVC: |
| 980 | if (obj_inst->trx_nr >= ARRAY_SIZE(bts->gprs.nsvc)) |
| 981 | return NULL; |
| 982 | mo = &bts->gprs.nsvc[obj_inst->trx_nr].mo; |
| 983 | break; |
| 984 | } |
| 985 | return mo; |
| 986 | } |
| 987 | |
| 988 | /* obtain the gsm_nm_state data structure for a given object instance */ |
| 989 | struct gsm_nm_state * |
| 990 | gsm_objclass2nmstate(struct gsm_bts *bts, uint8_t obj_class, |
| 991 | const struct abis_om_obj_inst *obj_inst) |
| 992 | { |
| 993 | struct gsm_abis_mo *mo; |
| 994 | |
| 995 | mo = gsm_objclass2mo(bts, obj_class, obj_inst); |
| 996 | if (!mo) |
| 997 | return NULL; |
| 998 | |
| 999 | return &mo->nm_state; |
| 1000 | } |
| 1001 | |
| 1002 | /* obtain the in-memory data structure of a given object instance */ |
| 1003 | void * |
| 1004 | gsm_objclass2obj(struct gsm_bts *bts, uint8_t obj_class, |
| 1005 | const struct abis_om_obj_inst *obj_inst) |
| 1006 | { |
| 1007 | struct gsm_bts_trx *trx; |
| 1008 | void *obj = NULL; |
| 1009 | |
| 1010 | switch (obj_class) { |
| 1011 | case NM_OC_BTS: |
| 1012 | obj = bts; |
| 1013 | break; |
| 1014 | case NM_OC_RADIO_CARRIER: |
| 1015 | if (obj_inst->trx_nr >= bts->num_trx) { |
| 1016 | return NULL; |
| 1017 | } |
| 1018 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 1019 | obj = trx; |
| 1020 | break; |
| 1021 | case NM_OC_BASEB_TRANSC: |
| 1022 | if (obj_inst->trx_nr >= bts->num_trx) { |
| 1023 | return NULL; |
| 1024 | } |
| 1025 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 1026 | obj = &trx->bb_transc; |
| 1027 | break; |
| 1028 | case NM_OC_CHANNEL: |
| 1029 | if (obj_inst->trx_nr >= bts->num_trx) { |
| 1030 | return NULL; |
| 1031 | } |
| 1032 | trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); |
| 1033 | if (obj_inst->ts_nr >= TRX_NR_TS) |
| 1034 | return NULL; |
| 1035 | obj = &trx->ts[obj_inst->ts_nr]; |
| 1036 | break; |
| 1037 | case NM_OC_SITE_MANAGER: |
| 1038 | obj = &bts->site_mgr; |
| 1039 | break; |
| 1040 | case NM_OC_GPRS_NSE: |
| 1041 | obj = &bts->gprs.nse; |
| 1042 | break; |
| 1043 | case NM_OC_GPRS_CELL: |
| 1044 | obj = &bts->gprs.cell; |
| 1045 | break; |
| 1046 | case NM_OC_GPRS_NSVC: |
| 1047 | if (obj_inst->trx_nr >= ARRAY_SIZE(bts->gprs.nsvc)) |
| 1048 | return NULL; |
| 1049 | obj = &bts->gprs.nsvc[obj_inst->trx_nr]; |
| 1050 | break; |
| 1051 | } |
| 1052 | return obj; |
| 1053 | } |
| 1054 | |
| 1055 | /* See Table 10.5.25 of GSM04.08 */ |
| 1056 | uint8_t gsm_pchan2chan_nr(enum gsm_phys_chan_config pchan, |
| 1057 | uint8_t ts_nr, uint8_t lchan_nr) |
| 1058 | { |
| 1059 | uint8_t cbits, chan_nr; |
| 1060 | |
| 1061 | switch (pchan) { |
| 1062 | case GSM_PCHAN_TCH_F: |
| 1063 | case GSM_PCHAN_TCH_F_PDCH: |
| 1064 | OSMO_ASSERT(lchan_nr == 0); |
| 1065 | cbits = 0x01; |
| 1066 | break; |
| 1067 | case GSM_PCHAN_PDCH: |
| 1068 | OSMO_ASSERT(lchan_nr == 0); |
| 1069 | cbits = RSL_CHAN_OSMO_PDCH >> 3; |
| 1070 | break; |
| 1071 | case GSM_PCHAN_TCH_H: |
| 1072 | OSMO_ASSERT(lchan_nr < 2); |
| 1073 | cbits = 0x02; |
| 1074 | cbits += lchan_nr; |
| 1075 | break; |
| 1076 | case GSM_PCHAN_CCCH_SDCCH4: |
| 1077 | case GSM_PCHAN_CCCH_SDCCH4_CBCH: |
| 1078 | /* |
| 1079 | * As a special hack for BCCH, lchan_nr == 4 may be passed |
| 1080 | * here. This should never be sent in an RSL message. |
| 1081 | * See osmo-bts-xxx/oml.c:opstart_compl(). |
| 1082 | */ |
| 1083 | if (lchan_nr == CCCH_LCHAN) |
| 1084 | chan_nr = 0; |
| 1085 | else |
| 1086 | OSMO_ASSERT(lchan_nr < 4); |
| 1087 | cbits = 0x04; |
| 1088 | cbits += lchan_nr; |
| 1089 | break; |
| 1090 | case GSM_PCHAN_SDCCH8_SACCH8C: |
| 1091 | case GSM_PCHAN_SDCCH8_SACCH8C_CBCH: |
| 1092 | OSMO_ASSERT(lchan_nr < 8); |
| 1093 | cbits = 0x08; |
| 1094 | cbits += lchan_nr; |
| 1095 | break; |
| 1096 | default: |
| 1097 | case GSM_PCHAN_CCCH: |
| 1098 | OSMO_ASSERT(lchan_nr == 0); |
| 1099 | cbits = 0x10; |
| 1100 | break; |
| 1101 | } |
| 1102 | |
| 1103 | chan_nr = (cbits << 3) | (ts_nr & 0x7); |
| 1104 | |
| 1105 | return chan_nr; |
| 1106 | } |
| 1107 | |
| 1108 | uint8_t gsm_lchan2chan_nr(const struct gsm_lchan *lchan) |
| 1109 | { |
| 1110 | enum gsm_phys_chan_config pchan = lchan->ts->pchan; |
| 1111 | if (pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH) |
| 1112 | return gsm_lchan_as_pchan2chan_nr(lchan, |
| 1113 | lchan->ts->dyn.pchan_is); |
| 1114 | return gsm_pchan2chan_nr(lchan->ts->pchan, lchan->ts->nr, lchan->nr); |
| 1115 | } |
| 1116 | |
| 1117 | uint8_t gsm_lchan_as_pchan2chan_nr(const struct gsm_lchan *lchan, |
| 1118 | enum gsm_phys_chan_config as_pchan) |
| 1119 | { |
| 1120 | if (lchan->ts->pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH |
| 1121 | && as_pchan == GSM_PCHAN_PDCH) |
| 1122 | return RSL_CHAN_OSMO_PDCH | (lchan->ts->nr & ~RSL_CHAN_NR_MASK); |
| 1123 | return gsm_pchan2chan_nr(as_pchan, lchan->ts->nr, lchan->nr); |
| 1124 | } |
| 1125 | |
| 1126 | /* return the gsm_lchan for the CBCH (if it exists at all) */ |
| 1127 | struct gsm_lchan *gsm_bts_get_cbch(struct gsm_bts *bts) |
| 1128 | { |
| 1129 | struct gsm_lchan *lchan = NULL; |
| 1130 | struct gsm_bts_trx *trx = bts->c0; |
| 1131 | |
| 1132 | if (trx->ts[0].pchan == GSM_PCHAN_CCCH_SDCCH4_CBCH) |
| 1133 | lchan = &trx->ts[0].lchan[2]; |
| 1134 | else { |
| 1135 | int i; |
| 1136 | for (i = 0; i < 8; i++) { |
| 1137 | if (trx->ts[i].pchan == GSM_PCHAN_SDCCH8_SACCH8C_CBCH) { |
| 1138 | lchan = &trx->ts[i].lchan[2]; |
| 1139 | break; |
| 1140 | } |
| 1141 | } |
| 1142 | } |
| 1143 | |
| 1144 | return lchan; |
| 1145 | } |
| 1146 | |
| 1147 | /* determine logical channel based on TRX and channel number IE */ |
| 1148 | struct gsm_lchan *rsl_lchan_lookup(struct gsm_bts_trx *trx, uint8_t chan_nr, |
| 1149 | int *rc) |
| 1150 | { |
| 1151 | uint8_t ts_nr = chan_nr & 0x07; |
| 1152 | uint8_t cbits = chan_nr >> 3; |
| 1153 | uint8_t lch_idx; |
| 1154 | struct gsm_bts_trx_ts *ts = &trx->ts[ts_nr]; |
| 1155 | bool ok = true; |
| 1156 | |
| 1157 | if (rc) |
| 1158 | *rc = -EINVAL; |
| 1159 | |
| 1160 | if (cbits == 0x01) { |
| 1161 | lch_idx = 0; /* TCH/F */ |
| 1162 | if (ts->pchan != GSM_PCHAN_TCH_F && |
| 1163 | ts->pchan != GSM_PCHAN_PDCH && |
| 1164 | ts->pchan != GSM_PCHAN_TCH_F_PDCH |
| 1165 | && !(ts->pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH |
| 1166 | && (ts->dyn.pchan_is == GSM_PCHAN_TCH_F |
| 1167 | || ts->dyn.pchan_want == GSM_PCHAN_TCH_F))) |
| 1168 | ok = false; |
| 1169 | } else if ((cbits & 0x1e) == 0x02) { |
| 1170 | lch_idx = cbits & 0x1; /* TCH/H */ |
| 1171 | if (ts->pchan != GSM_PCHAN_TCH_H |
| 1172 | && !(ts->pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH |
| 1173 | && (ts->dyn.pchan_is == GSM_PCHAN_TCH_H |
| 1174 | || ts->dyn.pchan_want == GSM_PCHAN_TCH_H))) |
| 1175 | ok = false; |
| 1176 | } else if ((cbits & 0x1c) == 0x04) { |
| 1177 | lch_idx = cbits & 0x3; /* SDCCH/4 */ |
| 1178 | if (ts->pchan != GSM_PCHAN_CCCH_SDCCH4 && |
| 1179 | ts->pchan != GSM_PCHAN_CCCH_SDCCH4_CBCH) |
| 1180 | ok = false; |
| 1181 | } else if ((cbits & 0x18) == 0x08) { |
| 1182 | lch_idx = cbits & 0x7; /* SDCCH/8 */ |
| 1183 | if (ts->pchan != GSM_PCHAN_SDCCH8_SACCH8C && |
| 1184 | ts->pchan != GSM_PCHAN_SDCCH8_SACCH8C_CBCH) |
| 1185 | ok = false; |
| 1186 | } else if (cbits == 0x10 || cbits == 0x11 || cbits == 0x12) { |
| 1187 | lch_idx = 0; |
| 1188 | if (ts->pchan != GSM_PCHAN_CCCH && |
| 1189 | ts->pchan != GSM_PCHAN_CCCH_SDCCH4 && |
| 1190 | ts->pchan != GSM_PCHAN_CCCH_SDCCH4_CBCH) |
| 1191 | ok = false; |
| 1192 | /* FIXME: we should not return first sdcch4 !!! */ |
| 1193 | } else if ((chan_nr & RSL_CHAN_NR_MASK) == RSL_CHAN_OSMO_PDCH) { |
| 1194 | lch_idx = 0; |
| 1195 | if (ts->pchan != GSM_PCHAN_TCH_F_TCH_H_PDCH) |
| 1196 | ok = false; |
| 1197 | } else |
| 1198 | return NULL; |
| 1199 | |
| 1200 | if (rc && ok) |
| 1201 | *rc = 0; |
| 1202 | |
| 1203 | return &ts->lchan[lch_idx]; |
| 1204 | } |
| 1205 | |
| 1206 | static const uint8_t subslots_per_pchan[] = { |
| 1207 | [GSM_PCHAN_NONE] = 0, |
| 1208 | [GSM_PCHAN_CCCH] = 0, |
| 1209 | [GSM_PCHAN_PDCH] = 0, |
| 1210 | [GSM_PCHAN_CCCH_SDCCH4] = 4, |
| 1211 | [GSM_PCHAN_TCH_F] = 1, |
| 1212 | [GSM_PCHAN_TCH_H] = 2, |
| 1213 | [GSM_PCHAN_SDCCH8_SACCH8C] = 8, |
| 1214 | [GSM_PCHAN_CCCH_SDCCH4_CBCH] = 4, |
| 1215 | [GSM_PCHAN_SDCCH8_SACCH8C_CBCH] = 8, |
| 1216 | /* |
| 1217 | * GSM_PCHAN_TCH_F_PDCH and GSM_PCHAN_TCH_F_TCH_H_PDCH should not be |
| 1218 | * part of this, those TS are handled according to their dynamic state. |
| 1219 | */ |
| 1220 | }; |
| 1221 | |
| 1222 | /*! Return the actual pchan type, also heeding dynamic TS. */ |
| 1223 | enum gsm_phys_chan_config ts_pchan(struct gsm_bts_trx_ts *ts) |
| 1224 | { |
| 1225 | switch (ts->pchan) { |
| 1226 | case GSM_PCHAN_TCH_F_TCH_H_PDCH: |
| 1227 | return ts->dyn.pchan_is; |
| 1228 | case GSM_PCHAN_TCH_F_PDCH: |
| 1229 | if (ts->flags & TS_F_PDCH_ACTIVE) |
| 1230 | return GSM_PCHAN_PDCH; |
| 1231 | else |
| 1232 | return GSM_PCHAN_TCH_F; |
| 1233 | default: |
| 1234 | return ts->pchan; |
| 1235 | } |
| 1236 | } |
| 1237 | |
| 1238 | /*! According to ts->pchan and possibly ts->dyn_pchan, return the number of |
| 1239 | * logical channels available in the timeslot. */ |
| 1240 | uint8_t ts_subslots(struct gsm_bts_trx_ts *ts) |
| 1241 | { |
| 1242 | return subslots_per_pchan[ts_pchan(ts)]; |
| 1243 | } |
| 1244 | |
| 1245 | static bool pchan_is_tch(enum gsm_phys_chan_config pchan) |
| 1246 | { |
| 1247 | switch (pchan) { |
| 1248 | case GSM_PCHAN_TCH_F: |
| 1249 | case GSM_PCHAN_TCH_H: |
| 1250 | return true; |
| 1251 | default: |
| 1252 | return false; |
| 1253 | } |
| 1254 | } |
| 1255 | |
| 1256 | bool ts_is_tch(struct gsm_bts_trx_ts *ts) |
| 1257 | { |
| 1258 | return pchan_is_tch(ts_pchan(ts)); |
| 1259 | } |