/* (C) 2008-2018 by Harald Welte * * All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include void *tall_bsc_ctx = NULL; static LLIST_HEAD(bts_models); void set_ts_e1link(struct gsm_bts_trx_ts *ts, uint8_t e1_nr, uint8_t e1_ts, uint8_t e1_ts_ss) { ts->e1_link.e1_nr = e1_nr; ts->e1_link.e1_ts = e1_ts; ts->e1_link.e1_ts_ss = e1_ts_ss; } static struct gsm_bts_model *bts_model_find(enum gsm_bts_type type) { struct gsm_bts_model *model; llist_for_each_entry(model, &bts_models, list) { if (model->type == type) return model; } return NULL; } int gsm_bts_model_register(struct gsm_bts_model *model) { if (bts_model_find(model->type)) return -EEXIST; tlv_def_patch(&model->nm_att_tlvdef, &abis_nm_att_tlvdef); llist_add_tail(&model->list, &bts_models); return 0; } const struct value_string bts_type_descs[_NUM_GSM_BTS_TYPE+1] = { { GSM_BTS_TYPE_UNKNOWN, "Unknown BTS Type" }, { GSM_BTS_TYPE_BS11, "Siemens BTS (BS-11 or compatible)" }, { GSM_BTS_TYPE_NANOBTS, "ip.access nanoBTS or compatible" }, { GSM_BTS_TYPE_RBS2000, "Ericsson RBS2000 Series" }, { GSM_BTS_TYPE_NOKIA_SITE, "Nokia {Metro,Ultra,In}Site" }, { GSM_BTS_TYPE_OSMOBTS, "sysmocom sysmoBTS" }, { 0, NULL } }; struct gsm_bts_trx *gsm_bts_trx_by_nr(struct gsm_bts *bts, int nr) { struct gsm_bts_trx *trx; llist_for_each_entry(trx, &bts->trx_list, list) { if (trx->nr == nr) return trx; } return NULL; } /* Search for a BTS in the given Location Area; optionally start searching * with start_bts (for continuing to search after the first result) */ struct gsm_bts *gsm_bts_by_lac(struct gsm_network *net, unsigned int lac, struct gsm_bts *start_bts) { int i; struct gsm_bts *bts; int skip = 0; if (start_bts) skip = 1; for (i = 0; i < net->num_bts; i++) { bts = gsm_bts_num(net, i); if (skip) { if (start_bts == bts) skip = 0; continue; } if (lac == GSM_LAC_RESERVED_ALL_BTS || bts->location_area_code == lac) return bts; } return NULL; } static const struct value_string bts_gprs_mode_names[] = { { BTS_GPRS_NONE, "none" }, { BTS_GPRS_GPRS, "gprs" }, { BTS_GPRS_EGPRS, "egprs" }, { 0, NULL } }; enum bts_gprs_mode bts_gprs_mode_parse(const char *arg, int *valid) { int rc; rc = get_string_value(bts_gprs_mode_names, arg); if (valid) *valid = rc != -EINVAL; return rc; } const char *bts_gprs_mode_name(enum bts_gprs_mode mode) { return get_value_string(bts_gprs_mode_names, mode); } int bts_gprs_mode_is_compat(struct gsm_bts *bts, enum bts_gprs_mode mode) { if (mode != BTS_GPRS_NONE && !osmo_bts_has_feature(&bts->model->features, BTS_FEAT_GPRS)) { return 0; } if (mode == BTS_GPRS_EGPRS && !osmo_bts_has_feature(&bts->model->features, BTS_FEAT_EGPRS)) { return 0; } return 1; } int gsm_set_bts_type(struct gsm_bts *bts, enum gsm_bts_type type) { struct gsm_bts_model *model; model = bts_model_find(type); if (!model) return -EINVAL; bts->type = type; bts->model = model; if (model->start && !model->started) { int ret = model->start(bts->network); if (ret < 0) return ret; model->started = true; } switch (bts->type) { case GSM_BTS_TYPE_NANOBTS: case GSM_BTS_TYPE_OSMOBTS: /* Set the default OML Stream ID to 0xff */ bts->oml_tei = 0xff; bts->c0->nominal_power = 23; break; case GSM_BTS_TYPE_RBS2000: INIT_LLIST_HEAD(&bts->rbs2000.is.conn_groups); INIT_LLIST_HEAD(&bts->rbs2000.con.conn_groups); break; case GSM_BTS_TYPE_BS11: case GSM_BTS_TYPE_UNKNOWN: case GSM_BTS_TYPE_NOKIA_SITE: /* Set default BTS reset timer */ bts->nokia.bts_reset_timer_cnf = 15; case _NUM_GSM_BTS_TYPE: break; } return 0; } struct gsm_bts *gsm_bts_alloc_register(struct gsm_network *net, enum gsm_bts_type type, uint8_t bsic) { struct gsm_bts_model *model = bts_model_find(type); struct gsm_bts *bts; if (!model && type != GSM_BTS_TYPE_UNKNOWN) return NULL; bts = gsm_bts_alloc(net, net->num_bts); if (!bts) return NULL; net->num_bts++; bts->type = type; bts->model = model; bts->bsic = bsic; llist_add_tail(&bts->list, &net->bts_list); return bts; } void gprs_ra_id_by_bts(struct gprs_ra_id *raid, struct gsm_bts *bts) { *raid = (struct gprs_ra_id){ .mcc = bts->network->plmn.mcc, .mnc = bts->network->plmn.mnc, .mnc_3_digits = bts->network->plmn.mnc_3_digits, .lac = bts->location_area_code, .rac = bts->gprs.rac, }; } void gsm48_ra_id_by_bts(struct gsm48_ra_id *buf, struct gsm_bts *bts) { struct gprs_ra_id raid; gprs_ra_id_by_bts(&raid, bts); gsm48_encode_ra(buf, &raid); } int gsm_parse_reg(void *ctx, regex_t *reg, char **str, int argc, const char **argv) { int ret; ret = 0; if (*str) { talloc_free(*str); *str = NULL; } regfree(reg); if (argc > 0) { *str = talloc_strdup(ctx, argv[0]); ret = regcomp(reg, argv[0], REG_NOSUB); /* handle compilation failures */ if (ret != 0) { talloc_free(*str); *str = NULL; } } return ret; } /* Assume there are only 256 possible bts */ osmo_static_assert(sizeof(((struct gsm_bts *) 0)->nr) == 1, _bts_nr_is_256); static void depends_calc_index_bit(int bts_nr, int *idx, int *bit) { *idx = bts_nr / (8 * 4); *bit = bts_nr % (8 * 4); } void bts_depend_mark(struct gsm_bts *bts, int dep) { int idx, bit; depends_calc_index_bit(dep, &idx, &bit); bts->depends_on[idx] |= 1 << bit; } void bts_depend_clear(struct gsm_bts *bts, int dep) { int idx, bit; depends_calc_index_bit(dep, &idx, &bit); bts->depends_on[idx] &= ~(1 << bit); } int bts_depend_is_depedency(struct gsm_bts *base, struct gsm_bts *other) { int idx, bit; depends_calc_index_bit(other->nr, &idx, &bit); /* Check if there is a depends bit */ return (base->depends_on[idx] & (1 << bit)) > 0; } static int bts_is_online(struct gsm_bts *bts) { /* TODO: support E1 BTS too */ if (!is_ipaccess_bts(bts)) return 1; if (!bts->oml_link) return 0; return bts->mo.nm_state.operational == NM_OPSTATE_ENABLED; } int bts_depend_check(struct gsm_bts *bts) { struct gsm_bts *other_bts; llist_for_each_entry(other_bts, &bts->network->bts_list, list) { if (!bts_depend_is_depedency(bts, other_bts)) continue; if (bts_is_online(other_bts)) continue; return 0; } return 1; } /* get the radio link timeout (based on SACCH decode errors, according * to algorithm specified in TS 05.08 section 5.2. A value of -1 * indicates we should use an infinitely long timeout, which only works * with OsmoBTS as the BTS implementation */ int gsm_bts_get_radio_link_timeout(const struct gsm_bts *bts) { const struct gsm48_cell_options *cell_options = &bts->si_common.cell_options; if (bts->infinite_radio_link_timeout) return -1; else { /* Encoding as per Table 10.5.21 of TS 04.08 */ return (cell_options->radio_link_timeout + 1) << 2; } } /* set the radio link timeout (based on SACCH decode errors, according * to algorithm specified in TS 05.08 Section 5.2. A value of -1 * indicates we should use an infinitely long timeout, which only works * with OsmoBTS as the BTS implementation */ void gsm_bts_set_radio_link_timeout(struct gsm_bts *bts, int value) { struct gsm48_cell_options *cell_options = &bts->si_common.cell_options; if (value < 0) bts->infinite_radio_link_timeout = true; else { bts->infinite_radio_link_timeout = false; /* Encoding as per Table 10.5.21 of TS 04.08 */ if (value < 4) value = 4; if (value > 64) value = 64; cell_options->radio_link_timeout = (value >> 2) - 1; } } bool classmark_is_r99(struct gsm_classmark *cm) { int rev_lev = 0; if (cm->classmark1_set) rev_lev = cm->classmark1.rev_lev; else if (cm->classmark2_len > 0) rev_lev = (cm->classmark2[0] >> 5) & 0x3; return rev_lev >= 2; } static const struct osmo_stat_item_desc bts_stat_desc[] = { { "chanloadavg", "Channel load average.", "%", 16, 0 }, { "T3122", "T3122 IMMEDIATE ASSIGNMENT REJECT wait indicator.", "s", 16, GSM_T3122_DEFAULT }, }; static const struct osmo_stat_item_group_desc bts_statg_desc = { .group_name_prefix = "bts", .group_description = "base transceiver station", .class_id = OSMO_STATS_CLASS_GLOBAL, .num_items = ARRAY_SIZE(bts_stat_desc), .item_desc = bts_stat_desc, }; void gsm_abis_mo_reset(struct gsm_abis_mo *mo) { mo->nm_state.operational = NM_OPSTATE_NULL; mo->nm_state.availability = NM_AVSTATE_POWER_OFF; } static void gsm_mo_init(struct gsm_abis_mo *mo, struct gsm_bts *bts, uint8_t obj_class, uint8_t p1, uint8_t p2, uint8_t p3) { mo->bts = bts; mo->obj_class = obj_class; mo->obj_inst.bts_nr = p1; mo->obj_inst.trx_nr = p2; mo->obj_inst.ts_nr = p3; gsm_abis_mo_reset(mo); } const struct value_string bts_attribute_names[] = { OSMO_VALUE_STRING(BTS_TYPE_VARIANT), OSMO_VALUE_STRING(BTS_SUB_MODEL), OSMO_VALUE_STRING(TRX_PHY_VERSION), { 0, NULL } }; enum bts_attribute str2btsattr(const char *s) { return get_string_value(bts_attribute_names, s); } const char *btsatttr2str(enum bts_attribute v) { return get_value_string(bts_attribute_names, v); } const struct value_string osmo_bts_variant_names[_NUM_BTS_VARIANT + 1] = { { BTS_UNKNOWN, "unknown" }, { BTS_OSMO_LITECELL15, "osmo-bts-lc15" }, { BTS_OSMO_OCTPHY, "osmo-bts-octphy" }, { BTS_OSMO_SYSMO, "osmo-bts-sysmo" }, { BTS_OSMO_TRX, "omso-bts-trx" }, { 0, NULL } }; enum gsm_bts_type_variant str2btsvariant(const char *arg) { return get_string_value(osmo_bts_variant_names, arg); } const char *btsvariant2str(enum gsm_bts_type_variant v) { return get_value_string(osmo_bts_variant_names, v); } const struct value_string bts_type_names[_NUM_GSM_BTS_TYPE + 1] = { { GSM_BTS_TYPE_UNKNOWN, "unknown" }, { GSM_BTS_TYPE_BS11, "bs11" }, { GSM_BTS_TYPE_NANOBTS, "nanobts" }, { GSM_BTS_TYPE_RBS2000, "rbs2000" }, { GSM_BTS_TYPE_NOKIA_SITE, "nokia_site" }, { GSM_BTS_TYPE_OSMOBTS, "sysmobts" }, { 0, NULL } }; enum gsm_bts_type str2btstype(const char *arg) { return get_string_value(bts_type_names, arg); } const char *btstype2str(enum gsm_bts_type type) { return get_value_string(bts_type_names, type); } const struct value_string gsm_chreq_descs[] = { { GSM_CHREQ_REASON_EMERG, "emergency call" }, { GSM_CHREQ_REASON_PAG, "answer to paging" }, { GSM_CHREQ_REASON_CALL, "call re-establishment" }, { GSM_CHREQ_REASON_LOCATION_UPD,"Location updating" }, { GSM_CHREQ_REASON_PDCH, "one phase packet access" }, { GSM_CHREQ_REASON_OTHER, "other" }, { 0, NULL } }; const struct value_string gsm_pchant_names[] = { { GSM_PCHAN_NONE, "NONE" }, { GSM_PCHAN_CCCH, "CCCH" }, { GSM_PCHAN_CCCH_SDCCH4,"CCCH+SDCCH4" }, { GSM_PCHAN_TCH_F, "TCH/F" }, { GSM_PCHAN_TCH_H, "TCH/H" }, { GSM_PCHAN_SDCCH8_SACCH8C, "SDCCH8" }, { GSM_PCHAN_PDCH, "PDCH" }, { GSM_PCHAN_TCH_F_PDCH, "TCH/F_PDCH" }, { GSM_PCHAN_UNKNOWN, "UNKNOWN" }, { GSM_PCHAN_CCCH_SDCCH4_CBCH, "CCCH+SDCCH4+CBCH" }, { GSM_PCHAN_SDCCH8_SACCH8C_CBCH, "SDCCH8+CBCH" }, { GSM_PCHAN_TCH_F_TCH_H_PDCH, "TCH/F_TCH/H_PDCH" }, { 0, NULL } }; const struct value_string gsm_pchan_ids[] = { { GSM_PCHAN_NONE, "NONE" }, { GSM_PCHAN_CCCH, "CCCH" }, { GSM_PCHAN_CCCH_SDCCH4,"CCCH_SDCCH4" }, { GSM_PCHAN_TCH_F, "TCH_F" }, { GSM_PCHAN_TCH_H, "TCH_H" }, { GSM_PCHAN_SDCCH8_SACCH8C, "SDCCH8" }, { GSM_PCHAN_PDCH, "PDCH" }, { GSM_PCHAN_TCH_F_PDCH, "TCH_F_PDCH" }, { GSM_PCHAN_UNKNOWN, "UNKNOWN" }, { GSM_PCHAN_CCCH_SDCCH4_CBCH, "CCCH_SDCCH4_CBCH" }, { GSM_PCHAN_SDCCH8_SACCH8C_CBCH, "SDCCH8_CBCH" }, { GSM_PCHAN_TCH_F_TCH_H_PDCH, "TCH_F_TCH_H_PDCH" }, { 0, NULL } }; const struct value_string gsm_pchant_descs[13] = { { GSM_PCHAN_NONE, "Physical Channel not configured" }, { GSM_PCHAN_CCCH, "FCCH + SCH + BCCH + CCCH (Comb. IV)" }, { GSM_PCHAN_CCCH_SDCCH4, "FCCH + SCH + BCCH + CCCH + 4 SDCCH + 2 SACCH (Comb. V)" }, { GSM_PCHAN_TCH_F, "TCH/F + FACCH/F + SACCH (Comb. I)" }, { GSM_PCHAN_TCH_H, "2 TCH/H + 2 FACCH/H + 2 SACCH (Comb. II)" }, { GSM_PCHAN_SDCCH8_SACCH8C, "8 SDCCH + 4 SACCH (Comb. VII)" }, { GSM_PCHAN_PDCH, "Packet Data Channel for GPRS/EDGE" }, { GSM_PCHAN_TCH_F_PDCH, "Dynamic TCH/F or GPRS PDCH" }, { GSM_PCHAN_UNKNOWN, "Unknown / Unsupported channel combination" }, { GSM_PCHAN_CCCH_SDCCH4_CBCH, "FCCH + SCH + BCCH + CCCH + CBCH + 3 SDCCH + 2 SACCH (Comb. V)" }, { GSM_PCHAN_SDCCH8_SACCH8C_CBCH, "7 SDCCH + 4 SACCH + CBCH (Comb. VII)" }, { GSM_PCHAN_TCH_F_TCH_H_PDCH, "Dynamic TCH/F or TCH/H or GPRS PDCH" }, { 0, NULL } }; const char *gsm_pchan_name(enum gsm_phys_chan_config c) { return get_value_string(gsm_pchant_names, c); } enum gsm_phys_chan_config gsm_pchan_parse(const char *name) { return get_string_value(gsm_pchant_names, name); } /* TODO: move to libosmocore, next to gsm_chan_t_names? */ const char *gsm_lchant_name(enum gsm_chan_t c) { return get_value_string(gsm_chan_t_names, c); } static const struct value_string chreq_names[] = { { GSM_CHREQ_REASON_EMERG, "EMERGENCY" }, { GSM_CHREQ_REASON_PAG, "PAGING" }, { GSM_CHREQ_REASON_CALL, "CALL" }, { GSM_CHREQ_REASON_LOCATION_UPD,"LOCATION_UPDATE" }, { GSM_CHREQ_REASON_OTHER, "OTHER" }, { 0, NULL } }; const char *gsm_chreq_name(enum gsm_chreq_reason_t c) { return get_value_string(chreq_names, c); } struct gsm_bts *gsm_bts_num(const struct gsm_network *net, int num) { struct gsm_bts *bts; if (num >= net->num_bts) return NULL; llist_for_each_entry(bts, &net->bts_list, list) { if (bts->nr == num) return bts; } return NULL; } bool gsm_bts_matches_lai(const struct gsm_bts *bts, const struct osmo_location_area_id *lai) { return osmo_plmn_cmp(&lai->plmn, &bts->network->plmn) == 0 && lai->lac == bts->location_area_code; } bool gsm_bts_matches_cell_id(const struct gsm_bts *bts, const struct gsm0808_cell_id *cell_id) { const union gsm0808_cell_id_u *id = &cell_id->id; if (!bts || !cell_id) return false; switch (cell_id->id_discr) { case CELL_IDENT_WHOLE_GLOBAL: return gsm_bts_matches_lai(bts, &id->global.lai) && id->global.cell_identity == bts->cell_identity; case CELL_IDENT_LAC_AND_CI: return id->lac_and_ci.lac == bts->location_area_code && id->lac_and_ci.ci == bts->cell_identity; case CELL_IDENT_CI: return id->ci == bts->cell_identity; case CELL_IDENT_NO_CELL: return false; case CELL_IDENT_LAI_AND_LAC: return gsm_bts_matches_lai(bts, &id->lai_and_lac); case CELL_IDENT_LAC: return id->lac == bts->location_area_code; case CELL_IDENT_BSS: return true; case CELL_IDENT_UTRAN_PLMN_LAC_RNC: case CELL_IDENT_UTRAN_RNC: case CELL_IDENT_UTRAN_LAC_RNC: return false; default: OSMO_ASSERT(false); } } /* From a list of local BTSes that match the cell_id, return the Nth one, or NULL if there is no such * match. */ struct gsm_bts *gsm_bts_by_cell_id(const struct gsm_network *net, const struct gsm0808_cell_id *cell_id, int match_idx) { struct gsm_bts *bts; int i = 0; llist_for_each_entry(bts, &net->bts_list, list) { if (!gsm_bts_matches_cell_id(bts, cell_id)) continue; if (i < match_idx) { /* this is only the i'th match, we're looking for a later one... */ i++; continue; } return bts; } return NULL; } struct gsm_bts_ref *gsm_bts_ref_find(const struct llist_head *list, const struct gsm_bts *bts) { struct gsm_bts_ref *ref; if (!bts) return NULL; llist_for_each_entry(ref, list, entry) { if (ref->bts == bts) return ref; } return NULL; } /* Add a BTS reference to the local_neighbors list. * Return 1 if added, 0 if such an entry already existed, and negative on errors. */ int gsm_bts_local_neighbor_add(struct gsm_bts *bts, struct gsm_bts *neighbor) { struct gsm_bts_ref *ref; if (!bts || !neighbor) return -ENOMEM; if (bts == neighbor) return -EINVAL; /* Already got this entry? */ ref = gsm_bts_ref_find(&bts->local_neighbors, neighbor); if (ref) return 0; ref = talloc_zero(bts, struct gsm_bts_ref); if (!ref) return -ENOMEM; ref->bts = neighbor; llist_add_tail(&ref->entry, &bts->local_neighbors); return 1; } /* Remove a BTS reference from the local_neighbors list. * Return 1 if removed, 0 if no such entry existed, and negative on errors. */ int gsm_bts_local_neighbor_del(struct gsm_bts *bts, const struct gsm_bts *neighbor) { struct gsm_bts_ref *ref; if (!bts || !neighbor) return -ENOMEM; ref = gsm_bts_ref_find(&bts->local_neighbors, neighbor); if (!ref) return 0; llist_del(&ref->entry); talloc_free(ref); return 1; } struct gsm_bts_trx *gsm_bts_trx_alloc(struct gsm_bts *bts) { struct gsm_bts_trx *trx = talloc_zero(bts, struct gsm_bts_trx); int k; if (!trx) return NULL; trx->bts = bts; trx->nr = bts->num_trx++; trx->mo.nm_state.administrative = NM_STATE_UNLOCKED; gsm_mo_init(&trx->mo, bts, NM_OC_RADIO_CARRIER, bts->nr, trx->nr, 0xff); gsm_mo_init(&trx->bb_transc.mo, bts, NM_OC_BASEB_TRANSC, bts->nr, trx->nr, 0xff); for (k = 0; k < TRX_NR_TS; k++) { struct gsm_bts_trx_ts *ts = &trx->ts[k]; int l; ts->trx = trx; ts->nr = k; ts->pchan_from_config = ts->pchan_on_init = ts->pchan_is = GSM_PCHAN_NONE; ts->tsc = -1; ts_fsm_alloc(ts); gsm_mo_init(&ts->mo, bts, NM_OC_CHANNEL, bts->nr, trx->nr, ts->nr); ts->hopping.arfcns.data_len = sizeof(ts->hopping.arfcns_data); ts->hopping.arfcns.data = ts->hopping.arfcns_data; ts->hopping.ma.data_len = sizeof(ts->hopping.ma_data); ts->hopping.ma.data = ts->hopping.ma_data; for (l = 0; l < TS_MAX_LCHAN; l++) { struct gsm_lchan *lchan; char *name; lchan = &ts->lchan[l]; lchan->ts = ts; lchan->nr = l; lchan->type = GSM_LCHAN_NONE; name = gsm_lchan_name_compute(lchan); lchan->name = talloc_strdup(trx, name); } } if (trx->nr != 0) trx->nominal_power = bts->c0->nominal_power; llist_add_tail(&trx->list, &bts->trx_list); return trx; } static const uint8_t bts_nse_timer_default[] = { 3, 3, 3, 3, 30, 3, 10 }; static const uint8_t bts_cell_timer_default[] = { 3, 3, 3, 3, 3, 10, 3, 10, 3, 10, 3 }; static const struct gprs_rlc_cfg rlc_cfg_default = { .parameter = { [RLC_T3142] = 20, [RLC_T3169] = 5, [RLC_T3191] = 5, [RLC_T3193] = 160, /* 10ms */ [RLC_T3195] = 5, [RLC_N3101] = 10, [RLC_N3103] = 4, [RLC_N3105] = 8, [CV_COUNTDOWN] = 15, [T_DL_TBF_EXT] = 250 * 10, /* ms */ [T_UL_TBF_EXT] = 250 * 10, /* ms */ }, .paging = { .repeat_time = 5 * 50, /* ms */ .repeat_count = 3, }, .cs_mask = 0x1fff, .initial_cs = 2, .initial_mcs = 6, }; /* Initialize those parts that don't require osmo-bsc specific dependencies. * This part is shared among the thin programs in osmo-bsc/src/utils/. * osmo-bsc requires further initialization that pulls in more dependencies (see * bsc_bts_alloc_register()). */ struct gsm_bts *gsm_bts_alloc(struct gsm_network *net, uint8_t bts_num) { struct gsm_bts *bts = talloc_zero(net, struct gsm_bts); struct gsm48_multi_rate_conf mr_cfg; int i; if (!bts) return NULL; bts->nr = bts_num; bts->num_trx = 0; INIT_LLIST_HEAD(&bts->trx_list); bts->network = net; bts->ms_max_power = 15; /* dBm */ gsm_mo_init(&bts->mo, bts, NM_OC_BTS, bts->nr, 0xff, 0xff); gsm_mo_init(&bts->site_mgr.mo, bts, NM_OC_SITE_MANAGER, 0xff, 0xff, 0xff); for (i = 0; i < ARRAY_SIZE(bts->gprs.nsvc); i++) { bts->gprs.nsvc[i].bts = bts; bts->gprs.nsvc[i].id = i; gsm_mo_init(&bts->gprs.nsvc[i].mo, bts, NM_OC_GPRS_NSVC, bts->nr, i, 0xff); } memcpy(&bts->gprs.nse.timer, bts_nse_timer_default, sizeof(bts->gprs.nse.timer)); gsm_mo_init(&bts->gprs.nse.mo, bts, NM_OC_GPRS_NSE, bts->nr, 0xff, 0xff); memcpy(&bts->gprs.cell.timer, bts_cell_timer_default, sizeof(bts->gprs.cell.timer)); gsm_mo_init(&bts->gprs.cell.mo, bts, NM_OC_GPRS_CELL, bts->nr, 0xff, 0xff); memcpy(&bts->gprs.cell.rlc_cfg, &rlc_cfg_default, sizeof(bts->gprs.cell.rlc_cfg)); /* init statistics */ bts->bts_ctrs = rate_ctr_group_alloc(bts, &bts_ctrg_desc, bts->nr); if (!bts->bts_ctrs) { talloc_free(bts); return NULL; } bts->bts_statg = osmo_stat_item_group_alloc(bts, &bts_statg_desc, 0); /* create our primary TRX */ bts->c0 = gsm_bts_trx_alloc(bts); if (!bts->c0) { rate_ctr_group_free(bts->bts_ctrs); osmo_stat_item_group_free(bts->bts_statg); talloc_free(bts); return NULL; } bts->c0->ts[0].pchan_from_config = GSM_PCHAN_CCCH_SDCCH4; /* TODO: really?? */ bts->rach_b_thresh = -1; bts->rach_ldavg_slots = -1; bts->paging.free_chans_need = -1; INIT_LLIST_HEAD(&bts->paging.pending_requests); bts->features.data = &bts->_features_data[0]; bts->features.data_len = sizeof(bts->_features_data); /* si handling */ bts->bcch_change_mark = 1; bts->chan_load_avg = 0; /* timer overrides */ bts->T3122 = 0; /* not overriden by default */ bts->T3113_dynamic = true; /* dynamic by default */ bts->dtxu = GSM48_DTX_SHALL_NOT_BE_USED; bts->dtxd = false; bts->gprs.ctrl_ack_type_use_block = true; /* use RLC/MAC control block */ bts->neigh_list_manual_mode = NL_MODE_AUTOMATIC; bts->early_classmark_allowed_3g = true; /* 3g Early Classmark Sending controlled by bts->early_classmark_allowed param */ bts->si_unused_send_empty = true; bts->si_common.cell_sel_par.cell_resel_hyst = 2; /* 4 dB */ bts->si_common.cell_sel_par.rxlev_acc_min = 0; bts->si_common.si2quater_neigh_list.arfcn = bts->si_common.data.earfcn_list; bts->si_common.si2quater_neigh_list.meas_bw = bts->si_common.data.meas_bw_list; bts->si_common.si2quater_neigh_list.length = MAX_EARFCN_LIST; bts->si_common.si2quater_neigh_list.thresh_hi = 0; osmo_earfcn_init(&bts->si_common.si2quater_neigh_list); bts->si_common.neigh_list.data = bts->si_common.data.neigh_list; bts->si_common.neigh_list.data_len = sizeof(bts->si_common.data.neigh_list); bts->si_common.si5_neigh_list.data = bts->si_common.data.si5_neigh_list; bts->si_common.si5_neigh_list.data_len = sizeof(bts->si_common.data.si5_neigh_list); bts->si_common.cell_alloc.data = bts->si_common.data.cell_alloc; bts->si_common.cell_alloc.data_len = sizeof(bts->si_common.data.cell_alloc); bts->si_common.rach_control.re = 1; /* no re-establishment */ bts->si_common.rach_control.tx_integer = 9; /* 12 slots spread - 217/115 slots delay */ bts->si_common.rach_control.max_trans = 3; /* 7 retransmissions */ bts->si_common.rach_control.t2 = 4; /* no emergency calls */ bts->si_common.chan_desc.att = 1; /* attachment required */ bts->si_common.chan_desc.bs_pa_mfrms = RSL_BS_PA_MFRMS_5; /* paging frames */ bts->si_common.chan_desc.bs_ag_blks_res = 1; /* reserved AGCH blocks */ bts->si_common.chan_desc.t3212 = osmo_tdef_get(net->T_defs, 3212, OSMO_TDEF_CUSTOM, -1); gsm_bts_set_radio_link_timeout(bts, 32); /* Use RADIO LINK TIMEOUT of 32 */ INIT_LLIST_HEAD(&bts->abis_queue); INIT_LLIST_HEAD(&bts->loc_list); INIT_LLIST_HEAD(&bts->local_neighbors); /* Enable all codecs by default. These get reset to a more fine grained selection IF a * 'codec-support' config appears in the config file (see bsc_vty.c). */ bts->codec = (struct bts_codec_conf){ .hr = 1, .efr = 1, .amr = 1, }; /* Set reasonable defaults for AMR-FR and AMR-HR rate configuration. * (see also 3GPP TS 28.062, Table 7.11.3.1.3-2) */ mr_cfg = (struct gsm48_multi_rate_conf) { .m4_75 = 1, .m5_15 = 0, .m5_90 = 1, .m6_70 = 0, .m7_40 = 1, .m7_95 = 0, .m10_2 = 0, .m12_2 = 1 }; memcpy(bts->mr_full.gsm48_ie, &mr_cfg, sizeof(bts->mr_full.gsm48_ie)); bts->mr_full.ms_mode[0].mode = 0; bts->mr_full.ms_mode[1].mode = 2; bts->mr_full.ms_mode[2].mode = 4; bts->mr_full.ms_mode[3].mode = 7; bts->mr_full.bts_mode[0].mode = 0; bts->mr_full.bts_mode[1].mode = 2; bts->mr_full.bts_mode[2].mode = 4; bts->mr_full.bts_mode[3].mode = 7; for (i = 0; i < 3; i++) { bts->mr_full.ms_mode[i].hysteresis = 8; bts->mr_full.ms_mode[i].threshold = 32; bts->mr_full.bts_mode[i].hysteresis = 8; bts->mr_full.bts_mode[i].threshold = 32; } bts->mr_full.num_modes = 4; mr_cfg = (struct gsm48_multi_rate_conf) { .m4_75 = 1, .m5_15 = 0, .m5_90 = 1, .m6_70 = 0, .m7_40 = 1, .m7_95 = 0, .m10_2 = 0, .m12_2 = 0 }; memcpy(bts->mr_half.gsm48_ie, &mr_cfg, sizeof(bts->mr_half.gsm48_ie)); bts->mr_half.ms_mode[0].mode = 0; bts->mr_half.ms_mode[1].mode = 2; bts->mr_half.ms_mode[2].mode = 4; bts->mr_half.ms_mode[3].mode = 7; bts->mr_half.bts_mode[0].mode = 0; bts->mr_half.bts_mode[1].mode = 2; bts->mr_half.bts_mode[2].mode = 4; bts->mr_half.bts_mode[3].mode = 7; for (i = 0; i < 3; i++) { bts->mr_half.ms_mode[i].hysteresis = 8; bts->mr_half.ms_mode[i].threshold = 32; bts->mr_half.bts_mode[i].hysteresis = 8; bts->mr_half.bts_mode[i].threshold = 32; } bts->mr_half.num_modes = 3; return bts; } /* reset the state of all MO in the BTS */ void gsm_bts_mo_reset(struct gsm_bts *bts) { struct gsm_bts_trx *trx; unsigned int i; gsm_abis_mo_reset(&bts->mo); gsm_abis_mo_reset(&bts->site_mgr.mo); for (i = 0; i < ARRAY_SIZE(bts->gprs.nsvc); i++) gsm_abis_mo_reset(&bts->gprs.nsvc[i].mo); gsm_abis_mo_reset(&bts->gprs.nse.mo); gsm_abis_mo_reset(&bts->gprs.cell.mo); llist_for_each_entry(trx, &bts->trx_list, list) { gsm_abis_mo_reset(&trx->mo); gsm_abis_mo_reset(&trx->bb_transc.mo); for (i = 0; i < ARRAY_SIZE(trx->ts); i++) { struct gsm_bts_trx_ts *ts = &trx->ts[i]; gsm_abis_mo_reset(&ts->mo); } } } struct gsm_bts_trx *gsm_bts_trx_num(const struct gsm_bts *bts, int num) { struct gsm_bts_trx *trx; if (num >= bts->num_trx) return NULL; llist_for_each_entry(trx, &bts->trx_list, list) { if (trx->nr == num) return trx; } return NULL; } static char ts2str[255]; char *gsm_bts_name(const struct gsm_bts *bts) { if (!bts) snprintf(ts2str, sizeof(ts2str), "(bts=NULL)"); else snprintf(ts2str, sizeof(ts2str), "(bts=%d)", bts->nr); return ts2str; } char *gsm_trx_name(const struct gsm_bts_trx *trx) { if (!trx) snprintf(ts2str, sizeof(ts2str), "(trx=NULL)"); else snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d)", trx->bts->nr, trx->nr); return ts2str; } char *gsm_ts_name(const struct gsm_bts_trx_ts *ts) { snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d)", ts->trx->bts->nr, ts->trx->nr, ts->nr); return ts2str; } /*! Log timeslot number with full pchan information */ char *gsm_ts_and_pchan_name(const struct gsm_bts_trx_ts *ts) { if (!ts->fi) snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,pchan_from_config=%s, not allocated)", ts->trx->bts->nr, ts->trx->nr, ts->nr, gsm_pchan_name(ts->pchan_from_config)); else if (ts->fi->state == TS_ST_NOT_INITIALIZED) snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,pchan_from_config=%s,state=%s)", ts->trx->bts->nr, ts->trx->nr, ts->nr, gsm_pchan_name(ts->pchan_from_config), osmo_fsm_inst_state_name(ts->fi)); else if (ts->pchan_is == ts->pchan_on_init) snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,pchan=%s,state=%s)", ts->trx->bts->nr, ts->trx->nr, ts->nr, gsm_pchan_name(ts->pchan_is), osmo_fsm_inst_state_name(ts->fi)); else snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,pchan_on_init=%s,pchan=%s,state=%s)", ts->trx->bts->nr, ts->trx->nr, ts->nr, gsm_pchan_name(ts->pchan_on_init), gsm_pchan_name(ts->pchan_is), osmo_fsm_inst_state_name(ts->fi)); return ts2str; } char *gsm_lchan_name_compute(const struct gsm_lchan *lchan) { struct gsm_bts_trx_ts *ts = lchan->ts; snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,ss=%d)", ts->trx->bts->nr, ts->trx->nr, ts->nr, lchan->nr); return ts2str; } /* obtain the MO structure for a given object instance */ static inline struct gsm_abis_mo * gsm_objclass2mo(struct gsm_bts *bts, uint8_t obj_class, const struct abis_om_obj_inst *obj_inst) { struct gsm_bts_trx *trx; struct gsm_abis_mo *mo = NULL; switch (obj_class) { case NM_OC_BTS: mo = &bts->mo; break; case NM_OC_RADIO_CARRIER: if (obj_inst->trx_nr >= bts->num_trx) { return NULL; } trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); mo = &trx->mo; break; case NM_OC_BASEB_TRANSC: if (obj_inst->trx_nr >= bts->num_trx) { return NULL; } trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); mo = &trx->bb_transc.mo; break; case NM_OC_CHANNEL: if (obj_inst->trx_nr >= bts->num_trx) { return NULL; } trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); if (obj_inst->ts_nr >= TRX_NR_TS) return NULL; mo = &trx->ts[obj_inst->ts_nr].mo; break; case NM_OC_SITE_MANAGER: mo = &bts->site_mgr.mo; break; case NM_OC_BS11: switch (obj_inst->bts_nr) { case BS11_OBJ_CCLK: mo = &bts->bs11.cclk.mo; break; case BS11_OBJ_BBSIG: if (obj_inst->ts_nr > bts->num_trx) return NULL; trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); mo = &trx->bs11.bbsig.mo; break; case BS11_OBJ_PA: if (obj_inst->ts_nr > bts->num_trx) return NULL; trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); mo = &trx->bs11.pa.mo; break; default: return NULL; } break; case NM_OC_BS11_RACK: mo = &bts->bs11.rack.mo; break; case NM_OC_BS11_ENVABTSE: if (obj_inst->trx_nr >= ARRAY_SIZE(bts->bs11.envabtse)) return NULL; mo = &bts->bs11.envabtse[obj_inst->trx_nr].mo; break; case NM_OC_GPRS_NSE: mo = &bts->gprs.nse.mo; break; case NM_OC_GPRS_CELL: mo = &bts->gprs.cell.mo; break; case NM_OC_GPRS_NSVC: if (obj_inst->trx_nr >= ARRAY_SIZE(bts->gprs.nsvc)) return NULL; mo = &bts->gprs.nsvc[obj_inst->trx_nr].mo; break; } return mo; } /* obtain the gsm_nm_state data structure for a given object instance */ struct gsm_nm_state * gsm_objclass2nmstate(struct gsm_bts *bts, uint8_t obj_class, const struct abis_om_obj_inst *obj_inst) { struct gsm_abis_mo *mo; mo = gsm_objclass2mo(bts, obj_class, obj_inst); if (!mo) return NULL; return &mo->nm_state; } /* obtain the in-memory data structure of a given object instance */ void * gsm_objclass2obj(struct gsm_bts *bts, uint8_t obj_class, const struct abis_om_obj_inst *obj_inst) { struct gsm_bts_trx *trx; void *obj = NULL; switch (obj_class) { case NM_OC_BTS: obj = bts; break; case NM_OC_RADIO_CARRIER: if (obj_inst->trx_nr >= bts->num_trx) { return NULL; } trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); obj = trx; break; case NM_OC_BASEB_TRANSC: if (obj_inst->trx_nr >= bts->num_trx) { return NULL; } trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); obj = &trx->bb_transc; break; case NM_OC_CHANNEL: if (obj_inst->trx_nr >= bts->num_trx) { return NULL; } trx = gsm_bts_trx_num(bts, obj_inst->trx_nr); if (obj_inst->ts_nr >= TRX_NR_TS) return NULL; obj = &trx->ts[obj_inst->ts_nr]; break; case NM_OC_SITE_MANAGER: obj = &bts->site_mgr; break; case NM_OC_GPRS_NSE: obj = &bts->gprs.nse; break; case NM_OC_GPRS_CELL: obj = &bts->gprs.cell; break; case NM_OC_GPRS_NSVC: if (obj_inst->trx_nr >= ARRAY_SIZE(bts->gprs.nsvc)) return NULL; obj = &bts->gprs.nsvc[obj_inst->trx_nr]; break; } return obj; } /* See Table 10.5.25 of GSM04.08 */ uint8_t gsm_pchan2chan_nr(enum gsm_phys_chan_config pchan, uint8_t ts_nr, uint8_t lchan_nr) { uint8_t cbits, chan_nr; switch (pchan) { case GSM_PCHAN_TCH_F: case GSM_PCHAN_TCH_F_PDCH: OSMO_ASSERT(lchan_nr == 0); cbits = 0x01; break; case GSM_PCHAN_PDCH: OSMO_ASSERT(lchan_nr == 0); cbits = RSL_CHAN_OSMO_PDCH >> 3; break; case GSM_PCHAN_TCH_H: OSMO_ASSERT(lchan_nr < 2); cbits = 0x02; cbits += lchan_nr; break; case GSM_PCHAN_CCCH_SDCCH4: case GSM_PCHAN_CCCH_SDCCH4_CBCH: /* * As a special hack for BCCH, lchan_nr == 4 may be passed * here. This should never be sent in an RSL message. * See osmo-bts-xxx/oml.c:opstart_compl(). */ if (lchan_nr == CCCH_LCHAN) chan_nr = 0; else OSMO_ASSERT(lchan_nr < 4); cbits = 0x04; cbits += lchan_nr; break; case GSM_PCHAN_SDCCH8_SACCH8C: case GSM_PCHAN_SDCCH8_SACCH8C_CBCH: OSMO_ASSERT(lchan_nr < 8); cbits = 0x08; cbits += lchan_nr; break; default: case GSM_PCHAN_CCCH: OSMO_ASSERT(lchan_nr == 0); cbits = 0x10; break; } chan_nr = (cbits << 3) | (ts_nr & 0x7); return chan_nr; } uint8_t gsm_lchan2chan_nr(const struct gsm_lchan *lchan) { /* Note: non-standard Osmocom style dyn TS PDCH mode chan_nr is only used within * rsl_tx_dyn_ts_pdch_act_deact(). */ return gsm_pchan2chan_nr(lchan->ts->pchan_is, lchan->ts->nr, lchan->nr); } /* return the gsm_lchan for the CBCH (if it exists at all) */ struct gsm_lchan *gsm_bts_get_cbch(struct gsm_bts *bts) { struct gsm_lchan *lchan = NULL; struct gsm_bts_trx *trx = bts->c0; if (trx->ts[0].pchan_from_config == GSM_PCHAN_CCCH_SDCCH4_CBCH) lchan = &trx->ts[0].lchan[2]; else { int i; for (i = 0; i < 8; i++) { if (trx->ts[i].pchan_from_config == GSM_PCHAN_SDCCH8_SACCH8C_CBCH) { lchan = &trx->ts[i].lchan[2]; break; } } } return lchan; } /* determine logical channel based on TRX and channel number IE */ struct gsm_lchan *rsl_lchan_lookup(struct gsm_bts_trx *trx, uint8_t chan_nr, int *rc) { uint8_t ts_nr = chan_nr & 0x07; uint8_t cbits = chan_nr >> 3; uint8_t lch_idx; struct gsm_bts_trx_ts *ts = &trx->ts[ts_nr]; bool ok; if (rc) *rc = -EINVAL; if (cbits == 0x01) { lch_idx = 0; /* TCH/F */ ok = ts_is_capable_of_pchan(ts, GSM_PCHAN_TCH_F) || ts->pchan_on_init == GSM_PCHAN_PDCH; /* PDCH? really? */ } else if ((cbits & 0x1e) == 0x02) { lch_idx = cbits & 0x1; /* TCH/H */ ok = ts_is_capable_of_pchan(ts, GSM_PCHAN_TCH_H); } else if ((cbits & 0x1c) == 0x04) { lch_idx = cbits & 0x3; /* SDCCH/4 */ ok = ts_is_capable_of_pchan(ts, GSM_PCHAN_CCCH_SDCCH4); } else if ((cbits & 0x18) == 0x08) { lch_idx = cbits & 0x7; /* SDCCH/8 */ ok = ts_is_capable_of_pchan(ts, GSM_PCHAN_SDCCH8_SACCH8C); } else if (cbits == 0x10 || cbits == 0x11 || cbits == 0x12) { lch_idx = 0; /* CCCH? */ ok = ts_is_capable_of_pchan(ts, GSM_PCHAN_CCCH); /* FIXME: we should not return first sdcch4 !!! */ } else if ((chan_nr & RSL_CHAN_NR_MASK) == RSL_CHAN_OSMO_PDCH) { lch_idx = 0; ok = (ts->pchan_on_init == GSM_PCHAN_TCH_F_TCH_H_PDCH); } else return NULL; if (rc && ok) *rc = 0; return &ts->lchan[lch_idx]; } static const uint8_t subslots_per_pchan[] = { [GSM_PCHAN_NONE] = 0, [GSM_PCHAN_CCCH] = 0, [GSM_PCHAN_PDCH] = 0, [GSM_PCHAN_CCCH_SDCCH4] = 4, [GSM_PCHAN_TCH_F] = 1, [GSM_PCHAN_TCH_H] = 2, [GSM_PCHAN_SDCCH8_SACCH8C] = 8, [GSM_PCHAN_CCCH_SDCCH4_CBCH] = 4, [GSM_PCHAN_SDCCH8_SACCH8C_CBCH] = 8, /* Dyn TS: maximum allowed subslots */ [GSM_PCHAN_TCH_F_TCH_H_PDCH] = 2, [GSM_PCHAN_TCH_F_PDCH] = 1, }; /*! According to ts->pchan and possibly ts->dyn_pchan, return the number of * logical channels available in the timeslot. */ uint8_t pchan_subslots(enum gsm_phys_chan_config pchan) { if (pchan < 0 || pchan >= ARRAY_SIZE(subslots_per_pchan)) return 0; return subslots_per_pchan[pchan]; } static bool pchan_is_tch(enum gsm_phys_chan_config pchan) { switch (pchan) { case GSM_PCHAN_TCH_F: case GSM_PCHAN_TCH_H: return true; default: return false; } } bool ts_is_tch(struct gsm_bts_trx_ts *ts) { return pchan_is_tch(ts->pchan_is); } bool trx_is_usable(const struct gsm_bts_trx *trx) { /* FIXME: How does this behave for BS-11 ? */ if (is_ipaccess_bts(trx->bts)) { if (!nm_is_running(&trx->mo.nm_state) || !nm_is_running(&trx->bb_transc.mo.nm_state)) return false; } return true; } void gsm_trx_all_ts_dispatch(struct gsm_bts_trx *trx, uint32_t ts_ev, void *data) { int i; for (i = 0; i < ARRAY_SIZE(trx->ts); i++) { struct gsm_bts_trx_ts *ts = &trx->ts[i]; osmo_fsm_inst_dispatch(ts->fi, ts_ev, data); } } void gsm_bts_all_ts_dispatch(struct gsm_bts *bts, uint32_t ts_ev, void *data) { struct gsm_bts_trx *trx; llist_for_each_entry(trx, &bts->trx_list, list) gsm_trx_all_ts_dispatch(trx, ts_ev, data); } static void _chan_desc_fill_tail(struct gsm48_chan_desc *cd, const struct gsm_lchan *lchan) { if (!lchan->ts->hopping.enabled) { uint16_t arfcn = lchan->ts->trx->arfcn & 0x3ff; cd->h0.tsc = gsm_ts_tsc(lchan->ts); cd->h0.h = 0; cd->h0.arfcn_high = arfcn >> 8; cd->h0.arfcn_low = arfcn & 0xff; } else { cd->h1.tsc = gsm_ts_tsc(lchan->ts); cd->h1.h = 1; cd->h1.maio_high = lchan->ts->hopping.maio >> 2; cd->h1.maio_low = lchan->ts->hopping.maio & 0x03; cd->h1.hsn = lchan->ts->hopping.hsn; } } void gsm48_lchan2chan_desc(struct gsm48_chan_desc *cd, const struct gsm_lchan *lchan) { cd->chan_nr = gsm_lchan2chan_nr(lchan); _chan_desc_fill_tail(cd, lchan); } /* like gsm48_lchan2chan_desc() above, but use ts->pchan_from_config to * return a channel description based on what is configured, rather than * what the current state of the pchan type is */ void gsm48_lchan2chan_desc_as_configured(struct gsm48_chan_desc *cd, const struct gsm_lchan *lchan) { cd->chan_nr = gsm_pchan2chan_nr(lchan->ts->pchan_from_config, lchan->ts->nr, lchan->nr); _chan_desc_fill_tail(cd, lchan); } bool nm_is_running(const struct gsm_nm_state *s) { return (s->operational == NM_OPSTATE_ENABLED) && ( (s->availability == NM_AVSTATE_OK) || (s->availability == 0xff) ); } /* determine the logical channel type based on the physical channel type */ int gsm_lchan_type_by_pchan(enum gsm_phys_chan_config pchan) { switch (pchan) { case GSM_PCHAN_TCH_F: return GSM_LCHAN_TCH_F; case GSM_PCHAN_TCH_H: return GSM_LCHAN_TCH_H; case GSM_PCHAN_SDCCH8_SACCH8C: case GSM_PCHAN_SDCCH8_SACCH8C_CBCH: case GSM_PCHAN_CCCH_SDCCH4: case GSM_PCHAN_CCCH_SDCCH4_CBCH: return GSM_LCHAN_SDCCH; default: return -1; } } enum gsm_phys_chan_config gsm_pchan_by_lchan_type(enum gsm_chan_t type) { switch (type) { case GSM_LCHAN_TCH_F: return GSM_PCHAN_TCH_F; case GSM_LCHAN_TCH_H: return GSM_PCHAN_TCH_H; case GSM_LCHAN_NONE: case GSM_LCHAN_PDTCH: /* TODO: so far lchan->type is NONE in PDCH mode. PDTCH is only * used in osmo-bts. Maybe set PDTCH and drop the NONE case * here. */ return GSM_PCHAN_PDCH; default: return GSM_PCHAN_UNKNOWN; } } /* Can the timeslot in principle be used as this PCHAN kind? */ bool ts_is_capable_of_pchan(struct gsm_bts_trx_ts *ts, enum gsm_phys_chan_config pchan) { switch (ts->pchan_on_init) { case GSM_PCHAN_TCH_F_PDCH: switch (pchan) { case GSM_PCHAN_TCH_F: case GSM_PCHAN_PDCH: return true; default: return false; } case GSM_PCHAN_TCH_F_TCH_H_PDCH: switch (pchan) { case GSM_PCHAN_TCH_F: case GSM_PCHAN_TCH_H: case GSM_PCHAN_PDCH: return true; default: return false; } case GSM_PCHAN_CCCH_SDCCH4_CBCH: switch (pchan) { case GSM_PCHAN_CCCH_SDCCH4_CBCH: case GSM_PCHAN_CCCH_SDCCH4: case GSM_PCHAN_CCCH: return true; default: return false; } case GSM_PCHAN_CCCH_SDCCH4: switch (pchan) { case GSM_PCHAN_CCCH_SDCCH4: case GSM_PCHAN_CCCH: return true; default: return false; } case GSM_PCHAN_SDCCH8_SACCH8C_CBCH: switch (pchan) { case GSM_PCHAN_SDCCH8_SACCH8C_CBCH: case GSM_PCHAN_SDCCH8_SACCH8C: return true; default: return false; } default: return ts->pchan_on_init == pchan; } } bool ts_is_capable_of_lchant(struct gsm_bts_trx_ts *ts, enum gsm_chan_t type) { switch (ts->pchan_on_init) { case GSM_PCHAN_TCH_F: switch (type) { case GSM_LCHAN_TCH_F: return true; default: return false; } case GSM_PCHAN_TCH_H: switch (type) { case GSM_LCHAN_TCH_H: return true; default: return false; } case GSM_PCHAN_TCH_F_PDCH: switch (type) { case GSM_LCHAN_TCH_F: case GSM_LCHAN_PDTCH: return true; default: return false; } case GSM_PCHAN_TCH_F_TCH_H_PDCH: switch (type) { case GSM_LCHAN_TCH_F: case GSM_LCHAN_TCH_H: case GSM_LCHAN_PDTCH: return true; default: return false; } case GSM_PCHAN_PDCH: switch (type) { case GSM_LCHAN_PDTCH: return true; default: return false; } case GSM_PCHAN_CCCH: switch (type) { case GSM_LCHAN_CCCH: return true; default: return false; } break; case GSM_PCHAN_CCCH_SDCCH4_CBCH: case GSM_PCHAN_CCCH_SDCCH4: case GSM_PCHAN_SDCCH8_SACCH8C: case GSM_PCHAN_SDCCH8_SACCH8C_CBCH: switch (type) { case GSM_LCHAN_CCCH: case GSM_LCHAN_SDCCH: return true; default: return false; } default: return false; } } static int trx_count_free_ts(struct gsm_bts_trx *trx, enum gsm_phys_chan_config pchan) { struct gsm_bts_trx_ts *ts; struct gsm_lchan *lchan; int j; int count = 0; if (!trx_is_usable(trx)) return 0; for (j = 0; j < ARRAY_SIZE(trx->ts); j++) { ts = &trx->ts[j]; if (!ts_is_usable(ts)) continue; if (ts->pchan_is == GSM_PCHAN_PDCH) { /* Dynamic timeslots in PDCH mode will become TCH if needed. */ switch (ts->pchan_on_init) { case GSM_PCHAN_TCH_F_PDCH: if (pchan == GSM_PCHAN_TCH_F) count++; continue; case GSM_PCHAN_TCH_F_TCH_H_PDCH: if (pchan == GSM_PCHAN_TCH_F) count++; else if (pchan == GSM_PCHAN_TCH_H) count += 2; continue; default: /* Not dynamic, not applicable. */ continue; } } if (ts->pchan_is != pchan) continue; ts_for_each_lchan(lchan, ts) { if (lchan_state_is(lchan, LCHAN_ST_UNUSED)) count++; } } return count; } /* Count number of free TS of given pchan type */ int bts_count_free_ts(struct gsm_bts *bts, enum gsm_phys_chan_config pchan) { struct gsm_bts_trx *trx; int count = 0; llist_for_each_entry(trx, &bts->trx_list, list) count += trx_count_free_ts(trx, pchan); return count; } bool ts_is_usable(const struct gsm_bts_trx_ts *ts) { if (!trx_is_usable(ts->trx)) { LOGP(DRLL, LOGL_DEBUG, "%s not usable\n", gsm_trx_name(ts->trx)); return false; } if (!ts->fi) return false; switch (ts->fi->state) { case TS_ST_NOT_INITIALIZED: case TS_ST_BORKEN: return false; default: break; } return true; } const struct value_string lchan_activate_mode_names[] = { OSMO_VALUE_STRING(FOR_NONE), OSMO_VALUE_STRING(FOR_MS_CHANNEL_REQUEST), OSMO_VALUE_STRING(FOR_ASSIGNMENT), OSMO_VALUE_STRING(FOR_HANDOVER), OSMO_VALUE_STRING(FOR_VTY), {} };