diff options
Diffstat (limited to 'src/common/gsm_data_shared.c')
-rw-r--r-- | src/common/gsm_data_shared.c | 831 |
1 files changed, 0 insertions, 831 deletions
diff --git a/src/common/gsm_data_shared.c b/src/common/gsm_data_shared.c deleted file mode 100644 index f0f5ae20..00000000 --- a/src/common/gsm_data_shared.c +++ /dev/null @@ -1,831 +0,0 @@ -/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org> - * - * 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 <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <ctype.h> - -#include <netinet/in.h> - -#include <osmocom/core/linuxlist.h> -#include <osmocom/core/talloc.h> -#include <osmocom/gsm/gsm_utils.h> -#include <osmocom/gsm/abis_nm.h> -#include <osmocom/core/statistics.h> -#include <osmocom/codec/ecu.h> - -#include <osmo-bts/gsm_data.h> - -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; - mo->nm_state.administrative = NM_STATE_LOCKED; -} - -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_OC2G, "osmo-bts-oc2g" }, - { BTS_OSMO_OCTPHY, "osmo-bts-octphy" }, - { BTS_OSMO_SYSMO, "osmo-bts-sysmo" }, - { BTS_OSMO_TRX, "omso-bts-trx" }, - { BTS_OSMO_VIRTUAL, "omso-bts-virtual" }, - { BTS_OSMO_OMLDUMMY, "omso-bts-omldummy" }, - { 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 gsm_bts_features_descs[] = { - { BTS_FEAT_HSCSD, "HSCSD" }, - { BTS_FEAT_GPRS, "GPRS" }, - { BTS_FEAT_EGPRS, "EGPRS" }, - { BTS_FEAT_ECSD, "ECSD" }, - { BTS_FEAT_HOPPING, "Frequency Hopping" }, - { BTS_FEAT_MULTI_TSC, "Multi-TSC" }, - { BTS_FEAT_OML_ALERTS, "OML Alerts" }, - { BTS_FEAT_AGCH_PCH_PROP, "AGCH/PCH proportional allocation" }, - { BTS_FEAT_CBCH, "CBCH" }, - { BTS_FEAT_SPEECH_F_V1, "Fullrate speech V1" }, - { BTS_FEAT_SPEECH_H_V1, "Halfrate speech V1" }, - { BTS_FEAT_SPEECH_F_EFR, "Fullrate speech EFR" }, - { BTS_FEAT_SPEECH_F_AMR, "Fullrate speech AMR" }, - { BTS_FEAT_SPEECH_H_AMR, "Halfrate speech AMR" }, - { BTS_FEAT_ETWS_PN, "ETWS Primary Notification on PCH" }, - { 0, NULL } -}; - -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[13] = { - { 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 lchan_s_names[] = { - { LCHAN_S_NONE, "NONE" }, - { LCHAN_S_ACT_REQ, "ACTIVATION REQUESTED" }, - { LCHAN_S_ACTIVE, "ACTIVE" }, - { LCHAN_S_INACTIVE, "INACTIVE" }, - { LCHAN_S_REL_REQ, "RELEASE REQUESTED" }, - { LCHAN_S_REL_ERR, "RELEASE DUE ERROR" }, - { LCHAN_S_BROKEN, "BROKEN UNUSABLE" }, - { 0, NULL } -}; - -const char *gsm_lchans_name(enum gsm_lchan_state s) -{ - return get_value_string(lchan_s_names, s); -} - -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(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; -} - -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++; - - 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 = GSM_PCHAN_NONE; - ts->dyn.pchan_is = GSM_PCHAN_NONE; - ts->dyn.pchan_want = GSM_PCHAN_NONE; - ts->tsc = -1; - - 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); - INIT_LLIST_HEAD(&lchan->sapi_cmds); - } - } - - 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, -}; - -struct gsm_bts *gsm_bts_alloc(void *ctx, uint8_t bts_num) -{ - struct gsm_bts *bts = talloc_zero(ctx, struct gsm_bts); - int i; - - if (!bts) - return NULL; - - bts->nr = bts_num; - bts->num_trx = 0; - INIT_LLIST_HEAD(&bts->trx_list); - 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)); - - /* create our primary TRX. It will be initialized during bts_init() */ - bts->c0 = gsm_bts_trx_alloc(bts); - if (!bts->c0) { - talloc_free(bts); - return NULL; - } - bts->c0->ts[0].pchan = GSM_PCHAN_CCCH_SDCCH4; - - bts->rach_b_thresh = -1; - bts->rach_ldavg_slots = -1; - bts->features.data = &bts->_features_data[0]; - bts->features.data_len = sizeof(bts->_features_data); - - /* si handling */ - bts->bcch_change_mark = 1; - - return bts; -} - -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_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) -{ - 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_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 */ -static uint8_t gsm_pchan2chan_nr(enum gsm_phys_chan_config pchan, - uint8_t ts_nr, uint8_t lchan_nr) -{ - uint8_t cbits, chan_nr; - - OSMO_ASSERT(pchan != GSM_PCHAN_TCH_F_TCH_H_PDCH); - OSMO_ASSERT(pchan != GSM_PCHAN_TCH_F_PDCH); - - switch (pchan) { - case GSM_PCHAN_TCH_F: - 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) - cbits = 0x10; /* BCCH */ - 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; - case GSM_PCHAN_CCCH: - default: - /* OSMO_ASSERT(lchan_nr == 0); - * 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. Tracked in OS#2906. - */ -#pragma message "fix caller that passes 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) -{ - switch (lchan->ts->pchan) { - case GSM_PCHAN_TCH_F_TCH_H_PDCH: - /* Return chan_nr reflecting the current TS pchan, either a standard TCH kind, or the - * nonstandard value reflecting PDCH for Osmocom style dyn TS. */ - return gsm_lchan_as_pchan2chan_nr(lchan, - lchan->ts->dyn.pchan_is); - case GSM_PCHAN_TCH_F_PDCH: - /* For ip.access style dyn TS, we always want to use the chan_nr as if it was TCH/F. - * We're using custom PDCH ACT and DEACT messages that use the usual chan_nr values. */ - return gsm_lchan_as_pchan2chan_nr(lchan, GSM_PCHAN_TCH_F); - default: - 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) - 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) - 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)); -} - -const char *gsm_trx_unit_id(struct gsm_bts_trx *trx) -{ - static char buf[23]; - - snprintf(buf, sizeof(buf), "%u/%u/%u", trx->bts->ip_access.site_id, - trx->bts->ip_access.bts_id, trx->nr); - return buf; -} - -const struct value_string lchan_ciph_state_names[] = { - { LCHAN_CIPH_NONE, "NONE" }, - { LCHAN_CIPH_RX_REQ, "RX_REQ" }, - { LCHAN_CIPH_RX_CONF, "RX_CONF" }, - { LCHAN_CIPH_RXTX_REQ, "RXTX_REQ" }, - { LCHAN_CIPH_RX_CONF_TX_REQ, "RX_CONF_TX_REQ" }, - { LCHAN_CIPH_RXTX_CONF, "RXTX_CONF" }, - { 0, NULL } -}; - -/* determine the ECU codec constant for the codec used by given lchan */ -int lchan2ecu_codec(const struct gsm_lchan *lchan) -{ - struct gsm_bts_trx_ts *ts = lchan->ts; - - switch (lchan->tch_mode) { - case GSM48_CMODE_SPEECH_V1: - if (ts_pchan(ts) == GSM_PCHAN_TCH_H) - return OSMO_ECU_CODEC_HR; - else - return OSMO_ECU_CODEC_FR; - break; - case GSM48_CMODE_SPEECH_EFR: - return OSMO_ECU_CODEC_EFR; - case GSM48_CMODE_SPEECH_AMR: - return OSMO_ECU_CODEC_AMR; - default: - return -1; - } -} |