bsc_vty.c: Add command for manual [de]actiovation of logical channels
Sometimes it is useful to manually activate (or decativate) a given logical channel from the VTY. Doing this on the BSC (rather than the BTS) ensures that the BSC knows that this timeslot / channel is allocated and there is no risk to have clashes between the BSC "owning" the resources and the BTS allocating some by itself. Change-Id: I44fc3904678eb48bd3ab1a3da8c0c265fa082e0d
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@ -3916,6 +3916,124 @@ DEFUN(pdch_act, pdch_act_cmd,
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}
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/* determine the logical channel type based on the physical channel type */
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static int lchan_type_by_pchan(enum gsm_phys_chan_config pchan)
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{
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switch (pchan) {
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case GSM_PCHAN_TCH_F:
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return GSM_LCHAN_TCH_F;
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case GSM_PCHAN_TCH_H:
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return GSM_LCHAN_TCH_H;
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case GSM_PCHAN_SDCCH8_SACCH8C:
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case GSM_PCHAN_SDCCH8_SACCH8C_CBCH:
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case GSM_PCHAN_CCCH_SDCCH4:
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case GSM_PCHAN_CCCH_SDCCH4_CBCH:
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return GSM_LCHAN_SDCCH;
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default:
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return -1;
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}
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}
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/* configure the lchan for a single AMR mode (as specified) */
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static int lchan_set_single_amr_mode(struct gsm_lchan *lchan, uint8_t amr_mode)
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{
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struct amr_multirate_conf mr;
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struct gsm48_multi_rate_conf *mr_conf;
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mr_conf = (struct gsm48_multi_rate_conf *) &mr.gsm48_ie;
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if (amr_mode > 7)
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return -1;
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memset(&mr, 0, sizeof(mr));
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mr_conf->ver = 1;
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/* bit-mask of supported modes, only one bit is set. Reflects
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* Figure 10.5.2.47a where there are no thershold and only a
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* single mode */
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mr.gsm48_ie[1] = 1 << amr_mode;
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mr.ms_mode[0].mode = amr_mode;
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mr.bts_mode[0].mode = amr_mode;
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/* encode this configuration into the lchan for both uplink and
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* downlink direction */
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gsm48_multirate_config(lchan->mr_ms_lv, &mr, mr.ms_mode);
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gsm48_multirate_config(lchan->mr_bts_lv, &mr, mr.bts_mode);
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return 0;
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}
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/* Debug/Measurement command to activate a given logical channel
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* manually in a given mode/codec. This is useful for receiver
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* performance testing (FER/RBER/...) */
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DEFUN(lchan_act, lchan_act_cmd,
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"bts <0-255> trx <0-255> timeslot <0-7> sub-slot <0-7> (activate|deactivate) (hr|fr|efr|amr) [<0-7>]",
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"BTS related commands\n" "BTS Number\n" "Transceiver\n" "Transceiver Number\n"
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"TRX Timeslot\n" "Timeslot Number\n" "Sub-Slot Number\n" "Sub-Slot Number\n"
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"Manual Channel Activation (e.g. for BER test)\n"
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"Manual Channel Deactivation (e.g. for BER test)\n"
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"Half-Rate v1\n" "Full-Rate\n" "Enhanced Full Rate\n" "Adaptive Multi-Rate\n" "AMR Mode\n")
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{
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struct gsm_bts_trx_ts *ts;
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struct gsm_lchan *lchan;
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int ss_nr = atoi(argv[3]);
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const char *act_str = argv[4];
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const char *codec_str = argv[5];
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int activate;
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ts = vty_get_ts(vty, argv[0], argv[1], argv[2]);
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if (!ts)
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return CMD_WARNING;
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lchan = &ts->lchan[ss_nr];
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if (!strcmp(act_str, "activate"))
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activate = 1;
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else
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activate = 0;
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if (ss_nr >= ts_subslots(ts)) {
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vty_out(vty, "%% subslot %d >= permitted %d for physical channel %s%s",
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ss_nr, ts_subslots(ts), gsm_pchan_name(ts->pchan), VTY_NEWLINE);
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return CMD_WARNING;
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}
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if (activate) {
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int lchan_t;
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if (lchan->state != LCHAN_S_NONE) {
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vty_out(vty, "%% Cannot activate: Channel busy!%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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lchan_t = lchan_type_by_pchan(ts->pchan);
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if (lchan_t < 0)
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return CMD_WARNING;
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/* configure the lchan */
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lchan->type = lchan_t;
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lchan->rsl_cmode = RSL_CMOD_SPD_SPEECH;
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if (!strcmp(codec_str, "hr") || !strcmp(codec_str, "fr"))
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lchan->tch_mode = GSM48_CMODE_SPEECH_V1;
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else if (!strcmp(codec_str, "efr"))
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lchan->tch_mode = GSM48_CMODE_SPEECH_EFR;
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else if (!strcmp(codec_str, "amr")) {
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int amr_mode;
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if (argc < 7) {
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vty_out(vty, "%% AMR requires specification of AMR mode%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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amr_mode = atoi(argv[6]);
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lchan->tch_mode = GSM48_CMODE_SPEECH_AMR;
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lchan_set_single_amr_mode(lchan, amr_mode);
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}
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vty_out(vty, "%% activating lchan %s%s", gsm_lchan_name(lchan), VTY_NEWLINE);
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rsl_chan_activate_lchan(lchan, RSL_ACT_TYPE_INITIAL, 0);
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rsl_ipacc_crcx(lchan);
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/* FIXME: MDCX for RTP */
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} else {
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rsl_direct_rf_release(lchan);
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}
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return CMD_SUCCESS;
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}
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extern int bsc_vty_init_extra(void);
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int bsc_vty_init(struct gsm_network *network)
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@ -4113,6 +4231,7 @@ int bsc_vty_init(struct gsm_network *network)
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install_element(ENABLE_NODE, &drop_bts_cmd);
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install_element(ENABLE_NODE, &restart_bts_cmd);
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install_element(ENABLE_NODE, &pdch_act_cmd);
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install_element(ENABLE_NODE, &lchan_act_cmd);
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install_element(ENABLE_NODE, &smscb_cmd_cmd);
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abis_nm_vty_init();
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