mirror of
https://gitea.osmocom.org/cellular-infrastructure/osmo-mgw.git
synced 2025-11-02 13:03:33 +00:00
b1d4c8ed9d
This introduces a new LOGP() macro together with LOGL_* definition to support multiple log levels (severities) throughout the codebase. Please note that the actual logging system does not use them yet, in this patch we simply introduce the new macros at the caller site.
237 lines
6.6 KiB
C
237 lines
6.6 KiB
C
#include <string.h>
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#include <errno.h>
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#include <netinet/in.h>
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#include <openbsc/gsm_data.h>
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#include <openbsc/e1_input.h>
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#include <openbsc/trau_frame.h>
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#include <openbsc/trau_mux.h>
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#include <openbsc/misdn.h>
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#include <openbsc/ipaccess.h>
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#include <openbsc/talloc.h>
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#include <openbsc/debug.h>
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#define SAPI_L2ML 0
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#define SAPI_OML 62
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#define SAPI_RSL 0 /* 63 ? */
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/* The e1_reconfig_*() functions below tale the configuration present in the
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* bts/trx/ts data structures and ensure the E1 configuration reflects the
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* timeslot/subslot/TEI configuration */
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int e1_reconfig_ts(struct gsm_bts_trx_ts *ts)
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{
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struct gsm_e1_subslot *e1_link = &ts->e1_link;
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struct e1inp_line *line;
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struct e1inp_ts *e1_ts;
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DEBUGP(DMI, "e1_reconfig_ts(%u,%u,%u)\n", ts->trx->bts->nr, ts->trx->nr, ts->nr);
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if (!e1_link->e1_ts)
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return 0;
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line = e1inp_line_get_create(e1_link->e1_nr);
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if (!line)
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return -ENOMEM;
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switch (ts->pchan) {
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case GSM_PCHAN_TCH_F:
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case GSM_PCHAN_TCH_H:
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e1_ts = &line->ts[e1_link->e1_ts-1];
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e1inp_ts_config(e1_ts, line, E1INP_TS_TYPE_TRAU);
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subch_demux_activate(&e1_ts->trau.demux, e1_link->e1_ts_ss);
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break;
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default:
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break;
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}
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return 0;
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}
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int e1_reconfig_trx(struct gsm_bts_trx *trx)
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{
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struct gsm_e1_subslot *e1_link = &trx->rsl_e1_link;
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struct e1inp_ts *sign_ts;
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struct e1inp_line *line;
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struct e1inp_sign_link *rsl_link;
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int i;
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if (!e1_link->e1_ts)
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return -EINVAL;
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/* RSL Link */
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line = e1inp_line_get_create(e1_link->e1_nr);
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if (!line)
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return -ENOMEM;
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sign_ts = &line->ts[e1_link->e1_ts-1];
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e1inp_ts_config(sign_ts, line, E1INP_TS_TYPE_SIGN);
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rsl_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_RSL,
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trx, trx->rsl_tei, SAPI_RSL);
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if (!rsl_link)
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return -ENOMEM;
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if (trx->rsl_link)
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e1inp_sign_link_destroy(trx->rsl_link);
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trx->rsl_link = rsl_link;
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for (i = 0; i < TRX_NR_TS; i++)
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e1_reconfig_ts(&trx->ts[i]);
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return 0;
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}
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int e1_reconfig_bts(struct gsm_bts *bts)
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{
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struct gsm_e1_subslot *e1_link = &bts->oml_e1_link;
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struct e1inp_ts *sign_ts;
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struct e1inp_line *line;
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struct e1inp_sign_link *oml_link;
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struct gsm_bts_trx *trx;
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DEBUGP(DMI, "e1_reconfig_bts(%u)\n", bts->nr);
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if (!e1_link->e1_ts)
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return -EINVAL;
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/* OML link */
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line = e1inp_line_get_create(e1_link->e1_nr);
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if (!line)
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return -ENOMEM;
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sign_ts = &line->ts[e1_link->e1_ts-1];
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e1inp_ts_config(sign_ts, line, E1INP_TS_TYPE_SIGN);
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oml_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_OML,
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bts->c0, bts->oml_tei, SAPI_OML);
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if (!oml_link)
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return -ENOMEM;
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if (bts->oml_link)
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e1inp_sign_link_destroy(bts->oml_link);
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bts->oml_link = oml_link;
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llist_for_each_entry(trx, &bts->trx_list, list)
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e1_reconfig_trx(trx);
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/* notify E1 input something has changed */
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return e1inp_line_update(line);
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}
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#if 0
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/* do some compiled-in configuration for our BTS/E1 setup */
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int e1_config(struct gsm_bts *bts, int cardnr, int release_l2)
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{
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struct e1inp_line *line;
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struct e1inp_ts *sign_ts;
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struct e1inp_sign_link *oml_link, *rsl_link;
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struct gsm_bts_trx *trx = bts->c0;
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int base_ts;
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switch (bts->nr) {
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case 0:
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/* First BTS uses E1 TS 01,02,03,04,05 */
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base_ts = HARDCODED_BTS0_TS - 1;
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break;
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case 1:
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/* Second BTS uses E1 TS 06,07,08,09,10 */
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base_ts = HARDCODED_BTS1_TS - 1;
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break;
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case 2:
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/* Third BTS uses E1 TS 11,12,13,14,15 */
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base_ts = HARDCODED_BTS2_TS - 1;
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default:
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return -EINVAL;
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}
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line = talloc_zero(tall_bsc_ctx, struct e1inp_line);
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if (!line)
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return -ENOMEM;
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/* create E1 timeslots for signalling and TRAU frames */
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e1inp_ts_config(&line->ts[base_ts+1-1], line, E1INP_TS_TYPE_SIGN);
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e1inp_ts_config(&line->ts[base_ts+2-1], line, E1INP_TS_TYPE_TRAU);
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e1inp_ts_config(&line->ts[base_ts+3-1], line, E1INP_TS_TYPE_TRAU);
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/* create signalling links for TS1 */
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sign_ts = &line->ts[base_ts+1-1];
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oml_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_OML,
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trx, TEI_OML, SAPI_OML);
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rsl_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_RSL,
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trx, TEI_RSL, SAPI_RSL);
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/* create back-links from bts/trx */
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bts->oml_link = oml_link;
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trx->rsl_link = rsl_link;
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/* enable subchannel demuxer on TS2 */
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subch_demux_activate(&line->ts[base_ts+2-1].trau.demux, 1);
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subch_demux_activate(&line->ts[base_ts+2-1].trau.demux, 2);
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subch_demux_activate(&line->ts[base_ts+2-1].trau.demux, 3);
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/* enable subchannel demuxer on TS3 */
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subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 0);
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subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 1);
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subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 2);
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subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 3);
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trx = gsm_bts_trx_num(bts, 1);
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if (trx) {
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/* create E1 timeslots for TRAU frames of TRX1 */
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e1inp_ts_config(&line->ts[base_ts+4-1], line, E1INP_TS_TYPE_TRAU);
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e1inp_ts_config(&line->ts[base_ts+5-1], line, E1INP_TS_TYPE_TRAU);
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/* create RSL signalling link for TRX1 */
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sign_ts = &line->ts[base_ts+1-1];
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rsl_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_RSL,
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trx, TEI_RSL+1, SAPI_RSL);
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/* create back-links from trx */
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trx->rsl_link = rsl_link;
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/* enable subchannel demuxer on TS2 */
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subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 0);
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subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 1);
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subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 2);
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subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 3);
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/* enable subchannel demuxer on TS3 */
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subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 0);
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subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 1);
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subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 2);
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subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 3);
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}
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return mi_setup(cardnr, line, release_l2);
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}
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#endif
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/* configure pseudo E1 line in ip.access style and connect to BTS */
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int ia_config_connect(struct gsm_bts *bts, struct sockaddr_in *sin)
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{
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struct e1inp_line *line;
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struct e1inp_ts *sign_ts, *rsl_ts;
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struct e1inp_sign_link *oml_link, *rsl_link;
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line = talloc_zero(tall_bsc_ctx, struct e1inp_line);
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if (!line)
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return -ENOMEM;
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/* create E1 timeslots for signalling and TRAU frames */
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e1inp_ts_config(&line->ts[1-1], line, E1INP_TS_TYPE_SIGN);
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e1inp_ts_config(&line->ts[2-1], line, E1INP_TS_TYPE_SIGN);
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/* create signalling links for TS1 */
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sign_ts = &line->ts[1-1];
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rsl_ts = &line->ts[2-1];
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oml_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_OML,
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bts->c0, 0xff, 0);
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rsl_link = e1inp_sign_link_create(rsl_ts, E1INP_SIGN_RSL,
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bts->c0, 0, 0);
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/* create back-links from bts/trx */
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bts->oml_link = oml_link;
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bts->c0->rsl_link = rsl_link;
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/* default port at BTS for incoming connections is 3006 */
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if (sin->sin_port == 0)
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sin->sin_port = htons(3006);
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return ipaccess_connect(line, sin);
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}
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