850 lines
22 KiB
C
850 lines
22 KiB
C
/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#include <netinet/in.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/gsm/gsm_utils.h>
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#include <osmocom/gsm/abis_nm.h>
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#include <osmocom/core/statistics.h>
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#include <openbsc/gsm_data.h>
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void gsm_abis_mo_reset(struct gsm_abis_mo *mo)
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{
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mo->nm_state.operational = NM_OPSTATE_NULL;
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mo->nm_state.availability = NM_AVSTATE_POWER_OFF;
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}
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static void gsm_mo_init(struct gsm_abis_mo *mo, struct gsm_bts *bts,
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uint8_t obj_class, uint8_t p1, uint8_t p2, uint8_t p3)
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{
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mo->bts = bts;
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mo->obj_class = obj_class;
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mo->obj_inst.bts_nr = p1;
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mo->obj_inst.trx_nr = p2;
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mo->obj_inst.ts_nr = p3;
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gsm_abis_mo_reset(mo);
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}
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const struct value_string bts_attribute_names[] = {
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OSMO_VALUE_STRING(BTS_TYPE_VARIANT),
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OSMO_VALUE_STRING(BTS_SUB_MODEL),
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OSMO_VALUE_STRING(TRX_PHY_VERSION),
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{ 0, NULL }
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};
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enum bts_attribute str2btsattr(const char *s)
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{
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return get_string_value(bts_attribute_names, s);
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}
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const char *btsatttr2str(enum bts_attribute v)
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{
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return get_value_string(bts_attribute_names, v);
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}
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const struct value_string osmo_bts_variant_names[_NUM_BTS_VARIANT + 1] = {
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{ BTS_UNKNOWN, "unknown" },
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{ BTS_OSMO_LITECELL15, "osmo-bts-lc15" },
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{ BTS_OSMO_OCTPHY, "osmo-bts-octphy" },
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{ BTS_OSMO_SYSMO, "osmo-bts-sysmo" },
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{ BTS_OSMO_TRX, "omso-bts-trx" },
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{ 0, NULL }
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};
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enum gsm_bts_type_variant str2btsvariant(const char *arg)
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{
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return get_string_value(osmo_bts_variant_names, arg);
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}
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const char *btsvariant2str(enum gsm_bts_type_variant v)
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{
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return get_value_string(osmo_bts_variant_names, v);
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}
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const struct value_string bts_type_names[_NUM_GSM_BTS_TYPE + 1] = {
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{ GSM_BTS_TYPE_UNKNOWN, "unknown" },
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{ GSM_BTS_TYPE_BS11, "bs11" },
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{ GSM_BTS_TYPE_NANOBTS, "nanobts" },
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{ GSM_BTS_TYPE_RBS2000, "rbs2000" },
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{ GSM_BTS_TYPE_NOKIA_SITE, "nokia_site" },
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{ GSM_BTS_TYPE_OSMOBTS, "sysmobts" },
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{ 0, NULL }
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};
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enum gsm_bts_type str2btstype(const char *arg)
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{
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return get_string_value(bts_type_names, arg);
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}
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const char *btstype2str(enum gsm_bts_type type)
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{
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return get_value_string(bts_type_names, type);
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}
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const struct value_string gsm_bts_features_descs[] = {
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{ BTS_FEAT_HSCSD, "HSCSD" },
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{ BTS_FEAT_GPRS, "GPRS" },
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{ BTS_FEAT_EGPRS, "EGPRS" },
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{ BTS_FEAT_ECSD, "ECSD" },
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{ BTS_FEAT_HOPPING, "Frequency Hopping" },
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{ BTS_FEAT_MULTI_TSC, "Multi-TSC" },
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{ BTS_FEAT_OML_ALERTS, "OML Alerts" },
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{ BTS_FEAT_AGCH_PCH_PROP, "AGCH/PCH proportional allocation" },
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{ BTS_FEAT_CBCH, "CBCH" },
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{ 0, NULL }
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};
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const struct value_string gsm_chreq_descs[] = {
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{ GSM_CHREQ_REASON_EMERG, "emergency call" },
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{ GSM_CHREQ_REASON_PAG, "answer to paging" },
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{ GSM_CHREQ_REASON_CALL, "call re-establishment" },
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{ GSM_CHREQ_REASON_LOCATION_UPD,"Location updating" },
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{ GSM_CHREQ_REASON_PDCH, "one phase packet access" },
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{ GSM_CHREQ_REASON_OTHER, "other" },
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{ 0, NULL }
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};
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const struct value_string gsm_pchant_names[13] = {
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{ GSM_PCHAN_NONE, "NONE" },
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{ GSM_PCHAN_CCCH, "CCCH" },
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{ GSM_PCHAN_CCCH_SDCCH4,"CCCH+SDCCH4" },
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{ GSM_PCHAN_TCH_F, "TCH/F" },
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{ GSM_PCHAN_TCH_H, "TCH/H" },
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{ GSM_PCHAN_SDCCH8_SACCH8C, "SDCCH8" },
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{ GSM_PCHAN_PDCH, "PDCH" },
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{ GSM_PCHAN_TCH_F_PDCH, "TCH/F_PDCH" },
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{ GSM_PCHAN_UNKNOWN, "UNKNOWN" },
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{ GSM_PCHAN_CCCH_SDCCH4_CBCH, "CCCH+SDCCH4+CBCH" },
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{ GSM_PCHAN_SDCCH8_SACCH8C_CBCH, "SDCCH8+CBCH" },
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{ GSM_PCHAN_TCH_F_TCH_H_PDCH, "TCH/F_TCH/H_PDCH" },
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{ 0, NULL }
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};
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const struct value_string gsm_pchant_descs[13] = {
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{ GSM_PCHAN_NONE, "Physical Channel not configured" },
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{ GSM_PCHAN_CCCH, "FCCH + SCH + BCCH + CCCH (Comb. IV)" },
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{ GSM_PCHAN_CCCH_SDCCH4,
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"FCCH + SCH + BCCH + CCCH + 4 SDCCH + 2 SACCH (Comb. V)" },
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{ GSM_PCHAN_TCH_F, "TCH/F + FACCH/F + SACCH (Comb. I)" },
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{ GSM_PCHAN_TCH_H, "2 TCH/H + 2 FACCH/H + 2 SACCH (Comb. II)" },
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{ GSM_PCHAN_SDCCH8_SACCH8C, "8 SDCCH + 4 SACCH (Comb. VII)" },
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{ GSM_PCHAN_PDCH, "Packet Data Channel for GPRS/EDGE" },
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{ GSM_PCHAN_TCH_F_PDCH, "Dynamic TCH/F or GPRS PDCH" },
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{ GSM_PCHAN_UNKNOWN, "Unknown / Unsupported channel combination" },
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{ GSM_PCHAN_CCCH_SDCCH4_CBCH, "FCCH + SCH + BCCH + CCCH + CBCH + 3 SDCCH + 2 SACCH (Comb. V)" },
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{ GSM_PCHAN_SDCCH8_SACCH8C_CBCH, "7 SDCCH + 4 SACCH + CBCH (Comb. VII)" },
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{ GSM_PCHAN_TCH_F_TCH_H_PDCH, "Dynamic TCH/F or TCH/H or GPRS PDCH" },
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{ 0, NULL }
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};
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const char *gsm_pchan_name(enum gsm_phys_chan_config c)
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{
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return get_value_string(gsm_pchant_names, c);
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}
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enum gsm_phys_chan_config gsm_pchan_parse(const char *name)
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{
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return get_string_value(gsm_pchant_names, name);
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}
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/* TODO: move to libosmocore, next to gsm_chan_t_names? */
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const char *gsm_lchant_name(enum gsm_chan_t c)
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{
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return get_value_string(gsm_chan_t_names, c);
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}
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static const struct value_string lchan_s_names[] = {
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{ LCHAN_S_NONE, "NONE" },
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{ LCHAN_S_ACT_REQ, "ACTIVATION REQUESTED" },
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{ LCHAN_S_ACTIVE, "ACTIVE" },
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{ LCHAN_S_INACTIVE, "INACTIVE" },
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{ LCHAN_S_REL_REQ, "RELEASE REQUESTED" },
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{ LCHAN_S_REL_ERR, "RELEASE DUE ERROR" },
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{ LCHAN_S_BROKEN, "BROKEN UNUSABLE" },
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{ 0, NULL }
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};
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const char *gsm_lchans_name(enum gsm_lchan_state s)
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{
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return get_value_string(lchan_s_names, s);
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}
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static const struct value_string chreq_names[] = {
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{ GSM_CHREQ_REASON_EMERG, "EMERGENCY" },
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{ GSM_CHREQ_REASON_PAG, "PAGING" },
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{ GSM_CHREQ_REASON_CALL, "CALL" },
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{ GSM_CHREQ_REASON_LOCATION_UPD,"LOCATION_UPDATE" },
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{ GSM_CHREQ_REASON_OTHER, "OTHER" },
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{ 0, NULL }
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};
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const char *gsm_chreq_name(enum gsm_chreq_reason_t c)
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{
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return get_value_string(chreq_names, c);
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}
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struct gsm_bts *gsm_bts_num(struct gsm_network *net, int num)
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{
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struct gsm_bts *bts;
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if (num >= net->num_bts)
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return NULL;
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llist_for_each_entry(bts, &net->bts_list, list) {
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if (bts->nr == num)
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return bts;
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}
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return NULL;
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}
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struct gsm_bts_trx *gsm_bts_trx_alloc(struct gsm_bts *bts)
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{
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struct gsm_bts_trx *trx = talloc_zero(bts, struct gsm_bts_trx);
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int k;
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if (!trx)
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return NULL;
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trx->bts = bts;
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trx->nr = bts->num_trx++;
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trx->mo.nm_state.administrative = NM_STATE_UNLOCKED;
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gsm_mo_init(&trx->mo, bts, NM_OC_RADIO_CARRIER,
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bts->nr, trx->nr, 0xff);
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gsm_mo_init(&trx->bb_transc.mo, bts, NM_OC_BASEB_TRANSC,
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bts->nr, trx->nr, 0xff);
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for (k = 0; k < TRX_NR_TS; k++) {
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struct gsm_bts_trx_ts *ts = &trx->ts[k];
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int l;
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ts->trx = trx;
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ts->nr = k;
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ts->pchan = GSM_PCHAN_NONE;
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ts->dyn.pchan_is = GSM_PCHAN_NONE;
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ts->dyn.pchan_want = GSM_PCHAN_NONE;
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ts->tsc = -1;
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gsm_mo_init(&ts->mo, bts, NM_OC_CHANNEL,
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bts->nr, trx->nr, ts->nr);
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ts->hopping.arfcns.data_len = sizeof(ts->hopping.arfcns_data);
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ts->hopping.arfcns.data = ts->hopping.arfcns_data;
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ts->hopping.ma.data_len = sizeof(ts->hopping.ma_data);
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ts->hopping.ma.data = ts->hopping.ma_data;
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for (l = 0; l < TS_MAX_LCHAN; l++) {
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struct gsm_lchan *lchan;
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char *name;
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lchan = &ts->lchan[l];
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lchan->ts = ts;
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lchan->nr = l;
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lchan->type = GSM_LCHAN_NONE;
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name = gsm_lchan_name_compute(lchan);
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lchan->name = talloc_strdup(trx, name);
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#ifndef ROLE_BSC
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INIT_LLIST_HEAD(&lchan->sapi_cmds);
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#endif
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}
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}
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if (trx->nr != 0)
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trx->nominal_power = bts->c0->nominal_power;
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llist_add_tail(&trx->list, &bts->trx_list);
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return trx;
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}
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static const uint8_t bts_nse_timer_default[] = { 3, 3, 3, 3, 30, 3, 10 };
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static const uint8_t bts_cell_timer_default[] =
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{ 3, 3, 3, 3, 3, 10, 3, 10, 3, 10, 3 };
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static const struct gprs_rlc_cfg rlc_cfg_default = {
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.parameter = {
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[RLC_T3142] = 20,
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[RLC_T3169] = 5,
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[RLC_T3191] = 5,
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[RLC_T3193] = 160, /* 10ms */
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[RLC_T3195] = 5,
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[RLC_N3101] = 10,
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[RLC_N3103] = 4,
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[RLC_N3105] = 8,
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[CV_COUNTDOWN] = 15,
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[T_DL_TBF_EXT] = 250 * 10, /* ms */
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[T_UL_TBF_EXT] = 250 * 10, /* ms */
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},
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.paging = {
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.repeat_time = 5 * 50, /* ms */
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.repeat_count = 3,
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},
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.cs_mask = 0x1fff,
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.initial_cs = 2,
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.initial_mcs = 6,
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};
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struct gsm_bts *gsm_bts_alloc(void *ctx)
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{
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struct gsm_bts *bts = talloc_zero(ctx, struct gsm_bts);
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int i;
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if (!bts)
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return NULL;
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bts->num_trx = 0;
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INIT_LLIST_HEAD(&bts->trx_list);
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bts->ms_max_power = 15; /* dBm */
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gsm_mo_init(&bts->mo, bts, NM_OC_BTS,
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bts->nr, 0xff, 0xff);
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gsm_mo_init(&bts->site_mgr.mo, bts, NM_OC_SITE_MANAGER,
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0xff, 0xff, 0xff);
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for (i = 0; i < ARRAY_SIZE(bts->gprs.nsvc); i++) {
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bts->gprs.nsvc[i].bts = bts;
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bts->gprs.nsvc[i].id = i;
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gsm_mo_init(&bts->gprs.nsvc[i].mo, bts, NM_OC_GPRS_NSVC,
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bts->nr, i, 0xff);
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}
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memcpy(&bts->gprs.nse.timer, bts_nse_timer_default,
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sizeof(bts->gprs.nse.timer));
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gsm_mo_init(&bts->gprs.nse.mo, bts, NM_OC_GPRS_NSE,
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bts->nr, 0xff, 0xff);
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memcpy(&bts->gprs.cell.timer, bts_cell_timer_default,
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sizeof(bts->gprs.cell.timer));
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gsm_mo_init(&bts->gprs.cell.mo, bts, NM_OC_GPRS_CELL,
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bts->nr, 0xff, 0xff);
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memcpy(&bts->gprs.cell.rlc_cfg, &rlc_cfg_default,
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sizeof(bts->gprs.cell.rlc_cfg));
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/* create our primary TRX */
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bts->c0 = gsm_bts_trx_alloc(bts);
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if (!bts->c0) {
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talloc_free(bts);
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return NULL;
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}
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bts->c0->ts[0].pchan = GSM_PCHAN_CCCH_SDCCH4;
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bts->rach_b_thresh = -1;
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bts->rach_ldavg_slots = -1;
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bts->paging.free_chans_need = -1;
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bts->features.data = &bts->_features_data[0];
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bts->features.data_len = sizeof(bts->_features_data);
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/* si handling */
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bts->bcch_change_mark = 1;
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return bts;
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}
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/* reset the state of all MO in the BTS */
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void gsm_bts_mo_reset(struct gsm_bts *bts)
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{
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struct gsm_bts_trx *trx;
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unsigned int i;
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gsm_abis_mo_reset(&bts->mo);
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gsm_abis_mo_reset(&bts->site_mgr.mo);
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for (i = 0; i < ARRAY_SIZE(bts->gprs.nsvc); i++)
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gsm_abis_mo_reset(&bts->gprs.nsvc[i].mo);
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gsm_abis_mo_reset(&bts->gprs.nse.mo);
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gsm_abis_mo_reset(&bts->gprs.cell.mo);
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llist_for_each_entry(trx, &bts->trx_list, list) {
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gsm_abis_mo_reset(&trx->mo);
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gsm_abis_mo_reset(&trx->bb_transc.mo);
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for (i = 0; i < ARRAY_SIZE(trx->ts); i++) {
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struct gsm_bts_trx_ts *ts = &trx->ts[i];
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gsm_abis_mo_reset(&ts->mo);
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}
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}
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}
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struct gsm_bts_trx *gsm_bts_trx_num(const struct gsm_bts *bts, int num)
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{
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struct gsm_bts_trx *trx;
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if (num >= bts->num_trx)
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return NULL;
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llist_for_each_entry(trx, &bts->trx_list, list) {
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if (trx->nr == num)
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return trx;
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}
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return NULL;
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}
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static char ts2str[255];
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char *gsm_trx_name(const struct gsm_bts_trx *trx)
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{
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if (!trx)
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snprintf(ts2str, sizeof(ts2str), "(trx=NULL)");
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else
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snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d)",
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trx->bts->nr, trx->nr);
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return ts2str;
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}
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char *gsm_ts_name(const struct gsm_bts_trx_ts *ts)
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{
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snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d)",
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ts->trx->bts->nr, ts->trx->nr, ts->nr);
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return ts2str;
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}
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/*! Log timeslot number with full pchan information */
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char *gsm_ts_and_pchan_name(const struct gsm_bts_trx_ts *ts)
|
|
{
|
|
switch (ts->pchan) {
|
|
case GSM_PCHAN_TCH_F_TCH_H_PDCH:
|
|
if (ts->dyn.pchan_is == ts->dyn.pchan_want)
|
|
snprintf(ts2str, sizeof(ts2str),
|
|
"(bts=%d,trx=%d,ts=%d,pchan=%s as %s)",
|
|
ts->trx->bts->nr, ts->trx->nr, ts->nr,
|
|
gsm_pchan_name(ts->pchan),
|
|
gsm_pchan_name(ts->dyn.pchan_is));
|
|
else
|
|
snprintf(ts2str, sizeof(ts2str),
|
|
"(bts=%d,trx=%d,ts=%d,pchan=%s"
|
|
" switching %s -> %s)",
|
|
ts->trx->bts->nr, ts->trx->nr, ts->nr,
|
|
gsm_pchan_name(ts->pchan),
|
|
gsm_pchan_name(ts->dyn.pchan_is),
|
|
gsm_pchan_name(ts->dyn.pchan_want));
|
|
break;
|
|
case GSM_PCHAN_TCH_F_PDCH:
|
|
if ((ts->flags & TS_F_PDCH_PENDING_MASK) == 0)
|
|
snprintf(ts2str, sizeof(ts2str),
|
|
"(bts=%d,trx=%d,ts=%d,pchan=%s as %s)",
|
|
ts->trx->bts->nr, ts->trx->nr, ts->nr,
|
|
gsm_pchan_name(ts->pchan),
|
|
(ts->flags & TS_F_PDCH_ACTIVE)? "PDCH"
|
|
: "TCH/F");
|
|
else
|
|
snprintf(ts2str, sizeof(ts2str),
|
|
"(bts=%d,trx=%d,ts=%d,pchan=%s"
|
|
" switching %s -> %s)",
|
|
ts->trx->bts->nr, ts->trx->nr, ts->nr,
|
|
gsm_pchan_name(ts->pchan),
|
|
(ts->flags & TS_F_PDCH_ACTIVE)? "PDCH"
|
|
: "TCH/F",
|
|
(ts->flags & TS_F_PDCH_ACT_PENDING)? "PDCH"
|
|
: "TCH/F");
|
|
break;
|
|
default:
|
|
snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d,pchan=%s)",
|
|
ts->trx->bts->nr, ts->trx->nr, ts->nr,
|
|
gsm_pchan_name(ts->pchan));
|
|
break;
|
|
}
|
|
|
|
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 */
|
|
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_PDCH:
|
|
case GSM_PCHAN_TCH_F_PDCH:
|
|
OSMO_ASSERT(lchan_nr == 0);
|
|
cbits = 0x01;
|
|
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:
|
|
#ifdef ROLE_BSC
|
|
OSMO_ASSERT(lchan_nr == 0);
|
|
#else
|
|
/*
|
|
* FIXME: On octphy and litecell, we hit above assertion (see
|
|
* Max's comment at https://gerrit.osmocom.org/589 ); disabled
|
|
* for BTS until this is clarified; remove the #ifdef when it
|
|
* is fixed.
|
|
*/
|
|
#warning "fix caller that passes lchan_nr != 0"
|
|
#endif
|
|
cbits = 0x10;
|
|
break;
|
|
}
|
|
|
|
chan_nr = (cbits << 3) | (ts_nr & 0x7);
|
|
|
|
return chan_nr;
|
|
}
|
|
|
|
uint8_t gsm_lchan2chan_nr(const struct gsm_lchan *lchan)
|
|
{
|
|
enum gsm_phys_chan_config pchan = lchan->ts->pchan;
|
|
if (pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH)
|
|
return gsm_lchan_as_pchan2chan_nr(lchan,
|
|
lchan->ts->dyn.pchan_is);
|
|
return gsm_pchan2chan_nr(lchan->ts->pchan, lchan->ts->nr, lchan->nr);
|
|
}
|
|
|
|
uint8_t gsm_lchan_as_pchan2chan_nr(const struct gsm_lchan *lchan,
|
|
enum gsm_phys_chan_config as_pchan)
|
|
{
|
|
if (lchan->ts->pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH
|
|
&& as_pchan == GSM_PCHAN_PDCH)
|
|
return RSL_CHAN_OSMO_PDCH | (lchan->ts->nr & ~RSL_CHAN_NR_MASK);
|
|
return gsm_pchan2chan_nr(as_pchan, 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 == 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 == 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 = true;
|
|
|
|
if (rc)
|
|
*rc = -EINVAL;
|
|
|
|
if (cbits == 0x01) {
|
|
lch_idx = 0; /* TCH/F */
|
|
if (ts->pchan != GSM_PCHAN_TCH_F &&
|
|
ts->pchan != GSM_PCHAN_PDCH &&
|
|
ts->pchan != GSM_PCHAN_TCH_F_PDCH
|
|
&& !(ts->pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH
|
|
&& (ts->dyn.pchan_is == GSM_PCHAN_TCH_F
|
|
|| ts->dyn.pchan_want == GSM_PCHAN_TCH_F)))
|
|
ok = false;
|
|
} else if ((cbits & 0x1e) == 0x02) {
|
|
lch_idx = cbits & 0x1; /* TCH/H */
|
|
if (ts->pchan != GSM_PCHAN_TCH_H
|
|
&& !(ts->pchan == GSM_PCHAN_TCH_F_TCH_H_PDCH
|
|
&& (ts->dyn.pchan_is == GSM_PCHAN_TCH_H
|
|
|| ts->dyn.pchan_want == GSM_PCHAN_TCH_H)))
|
|
ok = false;
|
|
} else if ((cbits & 0x1c) == 0x04) {
|
|
lch_idx = cbits & 0x3; /* SDCCH/4 */
|
|
if (ts->pchan != GSM_PCHAN_CCCH_SDCCH4 &&
|
|
ts->pchan != GSM_PCHAN_CCCH_SDCCH4_CBCH)
|
|
ok = false;
|
|
} else if ((cbits & 0x18) == 0x08) {
|
|
lch_idx = cbits & 0x7; /* SDCCH/8 */
|
|
if (ts->pchan != GSM_PCHAN_SDCCH8_SACCH8C &&
|
|
ts->pchan != GSM_PCHAN_SDCCH8_SACCH8C_CBCH)
|
|
ok = false;
|
|
} else if (cbits == 0x10 || cbits == 0x11 || cbits == 0x12) {
|
|
lch_idx = 0;
|
|
if (ts->pchan != GSM_PCHAN_CCCH &&
|
|
ts->pchan != GSM_PCHAN_CCCH_SDCCH4 &&
|
|
ts->pchan != GSM_PCHAN_CCCH_SDCCH4_CBCH)
|
|
ok = false;
|
|
/* FIXME: we should not return first sdcch4 !!! */
|
|
} else if ((chan_nr & RSL_CHAN_NR_MASK) == RSL_CHAN_OSMO_PDCH) {
|
|
lch_idx = 0;
|
|
if (ts->pchan != GSM_PCHAN_TCH_F_TCH_H_PDCH)
|
|
ok = false;
|
|
} 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,
|
|
/*
|
|
* GSM_PCHAN_TCH_F_PDCH and GSM_PCHAN_TCH_F_TCH_H_PDCH should not be
|
|
* part of this, those TS are handled according to their dynamic state.
|
|
*/
|
|
};
|
|
|
|
/*! Return the actual pchan type, also heeding dynamic TS. */
|
|
enum gsm_phys_chan_config ts_pchan(struct gsm_bts_trx_ts *ts)
|
|
{
|
|
switch (ts->pchan) {
|
|
case GSM_PCHAN_TCH_F_TCH_H_PDCH:
|
|
return ts->dyn.pchan_is;
|
|
case GSM_PCHAN_TCH_F_PDCH:
|
|
if (ts->flags & TS_F_PDCH_ACTIVE)
|
|
return GSM_PCHAN_PDCH;
|
|
else
|
|
return GSM_PCHAN_TCH_F;
|
|
default:
|
|
return ts->pchan;
|
|
}
|
|
}
|
|
|
|
/*! According to ts->pchan and possibly ts->dyn_pchan, return the number of
|
|
* logical channels available in the timeslot. */
|
|
uint8_t ts_subslots(struct gsm_bts_trx_ts *ts)
|
|
{
|
|
return subslots_per_pchan[ts_pchan(ts)];
|
|
}
|
|
|
|
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(ts));
|
|
}
|