FreeCalypso > hg > ice1-trau-tester

annotate pcm-br/xconn.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 499d065ee591
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1 /*
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2 * The two functions in this module get called from Osmocom select loop
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3 * whenever each timeslot data socket to osmo-e1d is ready for reading;
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4 * the cross-connect of the two timeslots is implemented here.
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5 */
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7 #include <stdint.h>
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8 #include <stdbool.h>
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9 #include <stdio.h>
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10 #include <stdlib.h>
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11 #include <unistd.h>
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13 #include <osmocom/core/select.h>
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15 #include "globals.h"
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17 uint8_t readbuf_a[160], readbuf_b[160];
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18 FILE *rec_file_a, *rec_file_b;
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20 int tsa_fd_cb(struct osmo_fd *ofd, unsigned int what)
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21 {
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22 int rc;
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24 rc = read(tsa_fd, readbuf_a, 160);
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25 if (rc != 160) {
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26 fprintf(stderr,
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27 "error: read from ts A returned %d instead of 160\n",
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28 rc);
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29 exit(1);
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30 }
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31 if (rec_file_a)
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32 fwrite(readbuf_a, 1, 160, rec_file_a);
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33 write(tsb_fd, readbuf_a, 160);
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34 return 0;
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35 }
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37 int tsb_fd_cb(struct osmo_fd *ofd, unsigned int what)
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38 {
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39 int rc;
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41 rc = read(tsb_fd, readbuf_b, 160);
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42 if (rc != 160) {
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43 fprintf(stderr,
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44 "error: read from ts B returned %d instead of 160\n",
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45 rc);
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46 exit(1);
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47 }
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48 if (rec_file_b)
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49 fwrite(readbuf_b, 1, 160, rec_file_b);
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50 write(tsa_fd, readbuf_b, 160);
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51 return 0;
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52 }