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Diffstat (limited to 'src/osmo-bsc/bts.c')
| -rw-r--r-- | src/osmo-bsc/bts.c | 748 |
1 files changed, 748 insertions, 0 deletions
diff --git a/src/osmo-bsc/bts.c b/src/osmo-bsc/bts.c new file mode 100644 index 000000000..71968f640 --- /dev/null +++ b/src/osmo-bsc/bts.c @@ -0,0 +1,748 @@ +/* (C) 2008-2018 by Harald Welte <laforge@gnumonks.org> + * (C) 2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> + * + * 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 <http://www.gnu.org/licenses/>. + * + */ + +#include <osmocom/gsm/abis_nm.h> + +#include <osmocom/bsc/gsm_data.h> +#include <osmocom/bsc/bts.h> +#include <osmocom/bsc/debug.h> + +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 } +}; + +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 } +}; + +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); +} + +static void bts_init_cbch_state(struct bts_smscb_chan_state *cstate, struct gsm_bts *bts) +{ + cstate->bts = bts; + INIT_LLIST_HEAD(&cstate->messages); +} + +static LLIST_HEAD(bts_models); + +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; +} + +static const struct osmo_stat_item_desc bts_stat_desc[] = { + [BTS_STAT_CHAN_LOAD_AVERAGE] = { "chanloadavg", "Channel load average", "%", 16, 0 }, + [BTS_STAT_CHAN_CCCH_SDCCH4_USED] = { "chan_ccch_sdcch4:used", + "Number of CCCH+SDCCH4 channels used", "", 16, 0 }, + [BTS_STAT_CHAN_CCCH_SDCCH4_TOTAL] = { "chan_ccch_sdcch4:total", + "Number of CCCH+SDCCH4 channels total", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_F_USED] = { "chan_tch_f:used", + "Number of TCH/F channels used", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_F_TOTAL] = { "chan_tch_f:total", + "Number of TCH/F channels total", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_H_USED] = { "chan_tch_h:used", + "Number of TCH/H channels used", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_H_TOTAL] = { "chan_tch_h:total", + "Number of TCH/H channels total", "", 16, 0 }, + [BTS_STAT_CHAN_SDCCH8_USED] = { "chan_sdcch8:used", + "Number of SDCCH8 channels used", "", 16, 0 }, + [BTS_STAT_CHAN_SDCCH8_TOTAL] = { "chan_sdcch8:total", + "Number of SDCCH8 channels total", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_F_PDCH_USED] = { "chan_tch_f_pdch:used", + "Number of TCH/F_PDCH channels used", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_F_PDCH_TOTAL] = { "chan_tch_f_pdch:total", + "Number of TCH/F_PDCH channels total", "", 16, 0 }, + [BTS_STAT_CHAN_CCCH_SDCCH4_CBCH_USED] = { "chan_ccch_sdcch4_cbch:used", + "Number of CCCH+SDCCH4+CBCH channels used", "", 16, 0 }, + [BTS_STAT_CHAN_CCCH_SDCCH4_CBCH_TOTAL] = { "chan_ccch_sdcch4_cbch:total", + "Number of CCCH+SDCCH4+CBCH channels total", "", 16, 0 }, + [BTS_STAT_CHAN_SDCCH8_CBCH_USED] = { "chan_sdcch8_cbch:used", + "Number of SDCCH8+CBCH channels used", "", 16, 0 }, + [BTS_STAT_CHAN_SDCCH8_CBCH_TOTAL] = { "chan_sdcch8_cbch:total", + "Number of SDCCH8+CBCH channels total", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_F_TCH_H_PDCH_USED] = { "chan_tch_f_tch_h_pdch:used", + "Number of TCH/F_TCH/H_PDCH channels used", "", 16, 0 }, + [BTS_STAT_CHAN_TCH_F_TCH_H_PDCH_TOTAL] = { "chan_tch_f_tch_h_pdch:total", + "Number of TCH/F_TCH/H_PDCH channels total", "", 16, 0 }, + [BTS_STAT_T3122] = { "T3122", "T3122 IMMEDIATE ASSIGNMENT REJECT wait indicator", + "s", 16, GSM_T3122_DEFAULT }, + [BTS_STAT_RACH_BUSY] = { "rach_busy", + "RACH slots with signal above threshold", "%", 16, 0 }, + [BTS_STAT_RACH_ACCESS] = { "rach_access", + "RACH slots with access bursts in them", "%", 16, 0 }, + [BTS_STAT_OML_CONNECTED] = { "oml_connected", "Number of OML links connected", "", 16, 0 }, + [BTS_STAT_RSL_CONNECTED] = { "rsl_connected", "Number of RSL links connected", "", 16, 0 }, + [BTS_STAT_LCHAN_BORKEN] = { "lchan_borken", + "Number of lchans in the BORKEN state", "", 16, 0 }, + [BTS_STAT_TS_BORKEN] = { "ts_borken", + "Number of timeslots in the BORKEN state", "", 16, 0 }, +}; + +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, +}; + +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)); + + /* 3GPP TS 08.18, chapter 5.4.1: 0 is reserved for signalling */ + bts->gprs.cell.bvci = 2; + + /* 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, bts->nr); + + /* 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->ccch_load_ind_thresh = 10; /* 10% of Load: Start sending CCCH LOAD IND */ + 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 overridden 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); + INIT_LLIST_HEAD(&bts->oml_fail_rep); + + /* 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; + + bts_init_cbch_state(&bts->cbch_basic, bts); + bts_init_cbch_state(&bts->cbch_extended, bts); + + return bts; +} + +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; +} + +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); + } +} + +static 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; +} + +/* 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; +} + +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; +} + +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; +} + +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; +} + +unsigned long long bts_uptime(const struct gsm_bts *bts) +{ + struct timespec tp; + + if (!bts->uptime || !bts->oml_link) { + LOGP(DNM, LOGL_ERROR, "BTS %u OML link uptime unavailable\n", bts->nr); + return 0; + } + + if (clock_gettime(CLOCK_MONOTONIC, &tp) != 0) { + LOGP(DNM, LOGL_ERROR, "BTS %u uptime computation failure: %s\n", bts->nr, strerror(errno)); + return 0; + } + + /* monotonic clock helps to ensure that the conversion is valid */ + return difftime(tp.tv_sec, bts->uptime); +} + +char *get_model_oml_status(const struct gsm_bts *bts) +{ + if (bts->model->oml_status) + return bts->model->oml_status(bts); + + return "unknown"; +} + +/* 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); + } + } +} + +/* 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; + } +} + +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); +} + + +/* 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; +} |