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annotate gsm-fw/L1/cfile/tch_feature.c @ 1005:908566db1538

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gsm-fw feature tch-reroute: init and config fleshed out
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Sun, 20 Mar 2016 18:50:54 +0000
parents 9b147d0b2cab
children 3bfeee466b0a
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9b147d0b2cab gsm-fw feature tch-reroute: started laying the foundation
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1 /*
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2 * This module is a FreeCalypso addition; it contains code implementing
9b147d0b2cab gsm-fw feature tch-reroute: started laying the foundation
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3 * our custom voice TCH rerouting feature.
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4 */
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5
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6 #include "config.h"
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7 #include "l1_confg.h"
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8 #include "l1_types.h"
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9 #include "sys_types.h"
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10 #include "l1_trace.h"
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11 #include "tch_feature.h"
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12
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13 T_RVT_USER_ID tch_reroute_rvt_id;
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14 BOOL tch_reroute_downlink;
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15
1005
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16 static void handle_tch_config_reg(T_RVT_BUFFER pkt)
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17 {
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18 UWORD8 config;
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19 T_RVT_BUFFER buf;
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20 T_RVT_RET rc;
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21
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22 config = pkt[1] & 0x01;
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23 tch_reroute_downlink = config;
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24
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25 /* send TCH_CONFIG_CONF response */
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26 rc = rvt_mem_alloc(tch_reroute_rvt_id, 2, &buf);
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27 if (rc == RVT_OK) {
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28 buf[0] = TCH_CONFIG_CONF;
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29 buf[1] = config;
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30 rvt_send_trace_no_cpy(buf, tch_reroute_rvt_id, 2,
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31 RVT_BINARY_FORMAT);
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32 }
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33 }
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34
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35 /*
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36 * The following function is the callback registered with RVT; it gets
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37 * called in RVT HISR context.
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38 */
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39 static void tch_rvt_input_callback(T_RVT_BUFFER pkt, UINT16 pktlen)
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40 {
1005
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41 if (pktlen < 1)
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42 return;
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43 switch (pkt[0]) {
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44 case TCH_CONFIG_REQ:
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45 if (pktlen != 2)
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46 return;
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47 handle_tch_config_reg(pkt);
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48 break;
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49 case TCH_ULBITS_REQ:
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50 /* to be filled */
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51 break;
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52 }
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53 }
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54
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55 void feature_tch_reroute_init()
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56 {
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57 rvt_register_id("TCH", &tch_reroute_rvt_id, tch_rvt_input_callback);
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58 tch_reroute_downlink = FALSE;
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59 }