245 lines
6.2 KiB
C
245 lines
6.2 KiB
C
/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
|
|
* (C) 2020-2021 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/core/fsm.h>
|
|
|
|
#include <osmocom/gsm/abis_nm.h>
|
|
|
|
#include <osmo-bts/logging.h>
|
|
#include <osmo-bts/gsm_data.h>
|
|
#include <osmo-bts/bts_trx.h>
|
|
#include <osmo-bts/bts.h>
|
|
#include <osmo-bts/bts_model.h>
|
|
#include <osmo-bts/rsl.h>
|
|
#include <osmo-bts/phy_link.h>
|
|
#include <osmo-bts/nm_common_fsm.h>
|
|
|
|
static int gsm_bts_trx_talloc_destructor(struct gsm_bts_trx *trx)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (trx->bb_transc.mo.fi) {
|
|
osmo_fsm_inst_free(trx->bb_transc.mo.fi);
|
|
trx->bb_transc.mo.fi = NULL;
|
|
}
|
|
if (trx->mo.fi) {
|
|
osmo_fsm_inst_free(trx->mo.fi);
|
|
trx->mo.fi = NULL;
|
|
}
|
|
for (i = 0; i < TRX_NR_TS; i++) {
|
|
struct gsm_bts_trx_ts *ts = &trx->ts[i];
|
|
if (ts->mo.fi) {
|
|
osmo_fsm_inst_free(ts->mo.fi);
|
|
ts->mo.fi = NULL;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Initialize all logical channels of the given timeslot */
|
|
static void gsm_bts_trx_ts_init_lchan(struct gsm_bts_trx_ts *ts)
|
|
{
|
|
unsigned int ln;
|
|
|
|
for (ln = 0; ln < ARRAY_SIZE(ts->lchan); ln++) {
|
|
struct gsm_lchan *lchan = &ts->lchan[ln];
|
|
gsm_lchan_init(lchan, ts, ln);
|
|
}
|
|
}
|
|
|
|
/* Initialize primary timeslots of the given transceiver */
|
|
static void gsm_bts_trx_init_ts(struct gsm_bts_trx *trx)
|
|
{
|
|
unsigned int tn;
|
|
|
|
for (tn = 0; tn < ARRAY_SIZE(trx->ts); tn++) {
|
|
struct gsm_bts_trx_ts *ts = &trx->ts[tn];
|
|
|
|
ts->trx = trx;
|
|
ts->nr = tn;
|
|
|
|
ts->mo.fi = osmo_fsm_inst_alloc(&nm_chan_fsm, trx, ts,
|
|
LOGL_INFO, NULL);
|
|
osmo_fsm_inst_update_id_f(ts->mo.fi, "%s-ts%u",
|
|
trx->bb_transc.mo.fi->id, ts->nr);
|
|
gsm_mo_init(&ts->mo, trx->bts, NM_OC_CHANNEL,
|
|
trx->bts->nr, trx->nr, ts->nr);
|
|
|
|
gsm_bts_trx_ts_init_lchan(ts);
|
|
}
|
|
}
|
|
|
|
/* Initialize shadow timeslots of the given transceiver */
|
|
void gsm_bts_trx_init_shadow_ts(struct gsm_bts_trx *trx)
|
|
{
|
|
unsigned int tn;
|
|
|
|
for (tn = 0; tn < ARRAY_SIZE(trx->ts); tn++) {
|
|
struct gsm_bts_trx_ts *ts;
|
|
|
|
ts = talloc_zero(trx, struct gsm_bts_trx_ts);
|
|
OSMO_ASSERT(ts != NULL);
|
|
|
|
ts->trx = trx;
|
|
ts->nr = tn;
|
|
|
|
/* Link both primary and shadow */
|
|
trx->ts[tn].vamos.peer = ts;
|
|
ts->vamos.peer = &trx->ts[tn];
|
|
ts->vamos.is_shadow = true;
|
|
|
|
/* Shadow timeslot uses the primary's NM FSM */
|
|
OSMO_ASSERT(trx->ts[tn].mo.fi != NULL);
|
|
ts->mo.fi = trx->ts[tn].mo.fi;
|
|
|
|
gsm_bts_trx_ts_init_lchan(ts);
|
|
}
|
|
}
|
|
|
|
void gsm_bts_trx_free_shadow_ts(struct gsm_bts_trx *trx)
|
|
{
|
|
unsigned int tn;
|
|
unsigned int ln;
|
|
|
|
for (tn = 0; tn < ARRAY_SIZE(trx->ts); tn++) {
|
|
struct gsm_bts_trx_ts *shadow_ts = trx->ts[tn].vamos.peer;
|
|
if (!shadow_ts)
|
|
continue;
|
|
|
|
/* free lchan related mem allocated on the trx object: */
|
|
for (ln = 0; ln < ARRAY_SIZE(shadow_ts->lchan); ln++) {
|
|
struct gsm_lchan *lchan = &shadow_ts->lchan[ln];
|
|
TALLOC_FREE(lchan->name);
|
|
}
|
|
|
|
talloc_free(shadow_ts);
|
|
trx->ts[tn].vamos.peer = 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);
|
|
|
|
if (!trx)
|
|
return NULL;
|
|
|
|
talloc_set_destructor(trx, gsm_bts_trx_talloc_destructor);
|
|
|
|
trx->bts = bts;
|
|
trx->nr = bts->num_trx++;
|
|
|
|
trx->mo.fi = osmo_fsm_inst_alloc(&nm_rcarrier_fsm, trx, trx,
|
|
LOGL_INFO, NULL);
|
|
osmo_fsm_inst_update_id_f(trx->mo.fi, "bts%d-trx%d", bts->nr, trx->nr);
|
|
gsm_mo_init(&trx->mo, bts, NM_OC_RADIO_CARRIER,
|
|
bts->nr, trx->nr, 0xff);
|
|
|
|
trx->bb_transc.mo.fi = osmo_fsm_inst_alloc(&nm_bb_transc_fsm, trx, &trx->bb_transc,
|
|
LOGL_INFO, NULL);
|
|
osmo_fsm_inst_update_id_f(trx->bb_transc.mo.fi, "bts%d-trx%d", bts->nr, trx->nr);
|
|
gsm_mo_init(&trx->bb_transc.mo, bts, NM_OC_BASEB_TRANSC,
|
|
bts->nr, trx->nr, 0xff);
|
|
|
|
gsm_bts_trx_init_ts(trx);
|
|
|
|
if (trx->nr != 0)
|
|
trx->nominal_power = bts->c0->nominal_power;
|
|
|
|
/* Default values for the power adjustments */
|
|
trx->power_params.ramp.max_initial_pout_mdBm = to_mdB(0);
|
|
trx->power_params.ramp.step_size_mdB = to_mdB(2);
|
|
trx->power_params.ramp.step_interval_sec = 1;
|
|
|
|
/* Default (fall-back) Dynamic Power Control parameters */
|
|
trx->bs_dpc_params = &bts->bs_dpc_params;
|
|
trx->ms_dpc_params = &bts->ms_dpc_params;
|
|
|
|
/* IF BTS model doesn't DSP/HW support MS Power Control Loop, enable osmo algo by default: */
|
|
if (!bts_internal_flag_get(trx->bts, BTS_INTERNAL_FLAG_MS_PWR_CTRL_DSP))
|
|
trx->ms_pwr_ctl_soft = true;
|
|
|
|
llist_add_tail(&trx->list, &bts->trx_list);
|
|
|
|
return trx;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/* RSL link is established, send status report */
|
|
int trx_link_estab(struct gsm_bts_trx *trx)
|
|
{
|
|
int rc;
|
|
|
|
LOGPTRX(trx, DSUM, LOGL_INFO, "RSL link up\n");
|
|
|
|
osmo_fsm_inst_dispatch(trx->mo.fi, NM_EV_RSL_UP, NULL);
|
|
osmo_fsm_inst_dispatch(trx->bb_transc.mo.fi, NM_EV_RSL_UP, NULL);
|
|
|
|
if ((rc = rsl_tx_rf_res(trx)) < 0)
|
|
oml_tx_failure_event_rep(&trx->bb_transc.mo, NM_SEVER_MAJOR, OSMO_EVT_MAJ_RSL_FAIL,
|
|
"Failed to establish RSL link (%d)", rc);
|
|
|
|
if (trx == trx->bts->c0)
|
|
load_timer_start(trx->bts);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
bool trx_ms_pwr_ctrl_is_osmo(const struct gsm_bts_trx *trx)
|
|
{
|
|
return trx->ms_pwr_ctl_soft;
|
|
}
|