FreeCalypso > hg > ice1-trau-tester

annotate libutil/open_ts.c @ 37:26c9535df39e

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rm abis subdir: moved to e1-fake-trau repository The present code repository is meant to contain code for talking to a TRAU DUT, hence the name ice1-trau-tester. The different and separate function of talking to an E1 BTS (Abis instead of Ater, and in the opposite role) was never in scope for this project, but that code got added here in a haste when the InSite BTS arrived while the TRAU bring-up was still blocked. Now that we have our Nokia TCSM2 system working and are doing TRAU experiments, let's keep the code clean.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 29 Aug 2024 19:02:02 +0000
parents 570252e22630
children
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570252e22630 libutil: timeslot opening function
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
570252e22630 libutil: timeslot opening function
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2 * The function in this common module is responsible for parsing the
570252e22630 libutil: timeslot opening function
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3 * user-supplied E1 timeslot specification and then opening that ts
570252e22630 libutil: timeslot opening function
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4 * in osmo-e1d.
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5 *
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6 * This code is based on osmo-e1d-pipe,
570252e22630 libutil: timeslot opening function
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7 * (C) 2020-2022 by Harald Welte <laforge@osmocom.org>,
570252e22630 libutil: timeslot opening function
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8 * SPDX-License-Identifier: GPL-2.0+
570252e22630 libutil: timeslot opening function
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9 */
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10
570252e22630 libutil: timeslot opening function
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11 #include <ctype.h>
570252e22630 libutil: timeslot opening function
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12 #include <stdint.h>
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13 #include <stdbool.h>
570252e22630 libutil: timeslot opening function
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14 #include <stdio.h>
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15 #include <stdlib.h>
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16
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17 #include <osmocom/e1d/proto_clnt.h>
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18
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19 #include "open_ts.h"
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20
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21 static int parse_component(const char *str, const char **outp, uint8_t *var)
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22 {
570252e22630 libutil: timeslot opening function
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23 if (!isdigit(*str))
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24 return -1;
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25 *var = atoi(str);
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26 while (isdigit(*str))
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27 str++;
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28 *outp = str;
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29 return 0;
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30 }
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31
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32 int open_e1d_ts(struct osmo_e1dp_client *e1_client, const char *ts_spec)
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33 {
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34 uint8_t intf_nr, line_nr, ts_nr;
570252e22630 libutil: timeslot opening function
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35 const char *cp;
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36 int fd;
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37
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38 if (parse_component(ts_spec, &cp, &intf_nr) < 0) {
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39 inv_syntax: fprintf(stderr, "error: invalid timeslot spec \"%s\"\n",
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40 ts_spec);
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41 exit(1);
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42 }
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43 if (*cp++ != ':')
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44 goto inv_syntax;
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45 if (parse_component(cp, &cp, &line_nr) < 0)
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46 goto inv_syntax;
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47 if (*cp++ != ':')
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48 goto inv_syntax;
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49 if (parse_component(cp, &cp, &ts_nr) < 0)
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50 goto inv_syntax;
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51 if (*cp)
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52 goto inv_syntax;
570252e22630 libutil: timeslot opening function
Mychaela Falconia <falcon@freecalypso.org>
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53 fd = osmo_e1dp_client_ts_open(e1_client, intf_nr, line_nr, ts_nr,
570252e22630 libutil: timeslot opening function
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54 E1DP_TSMODE_RAW, 160);
570252e22630 libutil: timeslot opening function
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55 if (fd < 0) {
570252e22630 libutil: timeslot opening function
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56 fprintf(stderr, "error: failed to open E1 ts %s\n", ts_spec);
570252e22630 libutil: timeslot opening function
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57 exit(1);
570252e22630 libutil: timeslot opening function
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58 }
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59 return fd;
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60 }