FreeCalypso > hg > ice1-trau-tester

annotate abis/tx_func.c @ 32:94f11dc0d474

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abis: Rx osmo_trau_sync hooked in
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 13 Aug 2024 22:07:49 +0000
parents 5dd30224b70a
children 351bd801cdce
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1 /*
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2 * Here we are going to implement Tx on Abis toward the BTS.
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3 */
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5 #include <stdint.h>
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6 #include <stdbool.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <unistd.h>
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12 #include <osmocom/core/msgb.h>
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13 #include <osmocom/core/select.h>
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14 #include <osmocom/isdn/i460_mux.h>
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16 #include "globals.h"
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17 #include "submux.h"
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18 #include "dl_frames.h"
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19
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20 static void tx_service_subslot(int nr)
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21 {
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22 struct abis_subslot *ab = &subslots[nr];
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23 struct msgb *msg;
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24 uint8_t *outbuf;
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26 if (!ab->is_active)
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27 return;
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28 msg = msgb_alloc_c(g_ctx, DL_OUTPUT_LEN, "TRAU-DL-frame");
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29 if (!msg)
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30 return;
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31 outbuf = msgb_put(msg, DL_OUTPUT_LEN);
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32 memcpy(outbuf, ab->is_efr ? dl_frame_efr : dl_frame_fr, DL_OUTPUT_LEN);
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33 osmo_i460_mux_enqueue(ab->schan, msg);
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34 }
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35
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36 void transmit_e1_ts(void)
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37 {
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38 uint8_t buf[160];
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39 int nr;
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40
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41 for (nr = 0; nr < ABIS_SUBSLOTS; nr++)
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42 tx_service_subslot(nr);
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43 osmo_i460_mux_out(&i460_ts, buf, 160);
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44 write(ts_fd, buf, 160);
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45 }