86 lines
3.4 KiB
C
86 lines
3.4 KiB
C
/*
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* Copyright (C) 2013 by Holger Hans Peter Freyther
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* Copyright (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Pau Espin Pedrol <pespin@sysmocom.de>
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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 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 <osmocom/core/utils.h>
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#include "gprs_pcu.h"
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#include "bts.h"
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struct gprs_pcu *the_pcu;
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static struct osmo_tdef T_defs_pcu[] = {
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{ .T=1, .default_val=30, .unit=OSMO_TDEF_S, .desc="BSSGP (un)blocking procedures timer (s)", .val=0 },
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{ .T=2, .default_val=30, .unit=OSMO_TDEF_S, .desc="BSSGP reset procedure timer (s)", .val=0 },
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{ .T=3190, .default_val=5, .unit=OSMO_TDEF_S, .desc="Return to packet idle mode after Packet DL Assignment on CCCH (s)", .val=0},
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{ .T=-2000, .default_val=2, .unit=OSMO_TDEF_MS, .desc="Tbf reject for PRR timer (ms)", .val=0 },
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{ .T=-2001, .default_val=2, .unit=OSMO_TDEF_S, .desc="PACCH assignment timer (s)", .val=0 },
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{ .T=-2002, .default_val=200, .unit=OSMO_TDEF_MS, .desc="Waiting after IMM.ASS confirm timer (ms)", .val=0 },
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{ .T=-2030, .default_val=60, .unit=OSMO_TDEF_S, .desc="Time to keep an idle MS object alive (s)", .val=0 }, /* slightly above T3314 (default 44s, 24.008, 11.2.2) */
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{ .T=-2031, .default_val=2000, .unit=OSMO_TDEF_MS, .desc="Time to keep an idle DL TBF alive (ms)", .val=0 },
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{ .T=0, .default_val=0, .unit=OSMO_TDEF_S, .desc=NULL, .val=0 } /* empty item at the end */
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};
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struct gprs_pcu *gprs_pcu_alloc(void *ctx)
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{
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struct gprs_pcu *pcu;
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pcu = (struct gprs_pcu *)talloc_zero(ctx, struct gprs_pcu);
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OSMO_ASSERT(pcu);
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pcu->vty.max_cs_ul = MAX_GPRS_CS;
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pcu->vty.max_cs_dl = MAX_GPRS_CS;
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pcu->vty.max_mcs_ul = MAX_EDGE_MCS;
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pcu->vty.max_mcs_dl = MAX_EDGE_MCS;
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pcu->vty.alpha = 0; /* a = 0.0 */
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pcu->vty.dl_tbf_preemptive_retransmission = true;
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/* By default resegmentation is supported in DL can also be configured
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* through VTY */
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pcu->vty.dl_arq_type = EGPRS_ARQ1;
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pcu->vty.cs_adj_enabled = true;
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pcu->vty.cs_adj_upper_limit = 33; /* Decrease CS if the error rate is above */
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pcu->vty.cs_adj_lower_limit = 10; /* Increase CS if the error rate is below */
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pcu->vty.cs_downgrade_threshold = 200;
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pcu->T_defs = T_defs_pcu;
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osmo_tdefs_reset(pcu->T_defs);
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return pcu;
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}
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void gprs_pcu_set_max_cs(struct gprs_pcu *pcu, uint8_t cs_dl, uint8_t cs_ul)
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{
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the_pcu->vty.max_cs_dl = cs_dl;
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the_pcu->vty.max_cs_ul = cs_ul;
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/*TODO: once we support multiple bts, foreach(bts) apply */
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struct gprs_rlcmac_bts *bts = bts_data(pcu->bts);
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bts_recalc_max_cs(bts);
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}
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void gprs_pcu_set_max_mcs(struct gprs_pcu *pcu, uint8_t mcs_dl, uint8_t mcs_ul)
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{
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the_pcu->vty.max_mcs_dl = mcs_dl;
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the_pcu->vty.max_mcs_ul = mcs_ul;
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/* TODO: once we support multiple bts, foreach(bts) apply */
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struct gprs_rlcmac_bts *bts = bts_data(pcu->bts);
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bts_recalc_max_mcs(bts);
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}
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