mobile: add audio config, with unused audio loopback setting
The aim is to add configurable audio loopback to mobile. An existing patch on a branch from fixeria [1] adds the audio config section. Add a reduced version of this audio config to be compatible with the future merge. Add the audio loopback setting, so far without functionality. Subsequent patch adds the actual loopback. [1] osmocom-bb branch fixeria/audio, patch "mobile/vty_interface.c: add new 'audio' section" Change-id I62cd5ef22ca2290fcafe65c78537ddbcb39fb8c6 Change-Id: Ie03e4a6c6f81ea3925266dd22e87506d722a6e1a
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@ -59,4 +59,6 @@ ms 1
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ki comp128 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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no barred-access
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rplmn 001 01
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audio
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io-handler none
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no shutdown
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@ -59,6 +59,8 @@ ms one
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ki comp128 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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no barred-access
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rplmn 001 01
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audio
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io-handler none
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no shutdown
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!
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ms two
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@ -109,4 +111,6 @@ ms two
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ki comp128 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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no barred-access
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rplmn 001 01
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audio
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io-handler none
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no shutdown
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@ -3,10 +3,29 @@
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#define MOB_C7_DEFLT_ANY_TIMEOUT 30
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/* TCH frame I/O handler */
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enum audio_io_handler {
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/* No handler, drop frames */
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AUDIO_IOH_NONE = 0,
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/* Return to sender */
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AUDIO_IOH_LOOPBACK,
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};
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extern const struct value_string audio_io_handler_names[];
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static inline const char *audio_io_handler_name(enum audio_io_handler val)
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{ return get_value_string(audio_io_handler_names, val); }
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struct audio_settings {
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enum audio_io_handler io_handler;
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};
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struct gsm_settings {
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char layer2_socket_path[128];
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char sap_socket_path[128];
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/* Audio settings */
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struct audio_settings audio;
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/* IMEI */
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char imei[16];
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char imeisv[17];
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@ -10,6 +10,7 @@ enum ms_vty_node {
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MS_NODE = _LAST_OSMOVTY_NODE + 1,
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TESTSIM_NODE,
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SUPPORT_NODE,
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AUDIO_NODE,
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};
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int ms_vty_go_parent(struct vty *vty);
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@ -41,6 +41,9 @@ int gsm_settings_init(struct osmocom_ms *ms)
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strcpy(set->layer2_socket_path, layer2_socket_path);
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strcpy(set->sap_socket_path, sap_socket_path);
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/* Audio settings: drop TCH frames by default */
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set->audio.io_handler = AUDIO_IOH_NONE;
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/* network search */
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set->plmn_mode = PLMN_MODE_AUTO;
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@ -194,3 +197,8 @@ int gsm_random_imei(struct gsm_settings *set)
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return 0;
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}
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const struct value_string audio_io_handler_names[] = {
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{ AUDIO_IOH_NONE, "none" },
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{ AUDIO_IOH_LOOPBACK, "loopback" },
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{ 0x00, NULL}
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};
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@ -65,6 +65,12 @@ struct cmd_node support_node = {
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1
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};
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struct cmd_node audio_node = {
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AUDIO_NODE,
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"%s(audio)# ",
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1
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};
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static void print_vty(void *priv, const char *fmt, ...)
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{
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char buffer[1000];
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@ -1526,6 +1532,10 @@ static void config_write_ms(struct vty *vty, struct osmocom_ms *ms)
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vty_out(vty, " c7-any-timeout %d%s",
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set->any_timeout, VTY_NEWLINE);
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vty_out(vty, " audio%s", VTY_NEWLINE);
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if (!hide_default || set->audio.io_handler != AUDIO_IOH_NONE)
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vty_out(vty, " io-handler %s%s", audio_io_handler_name(set->audio.io_handler), VTY_NEWLINE);
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/* no shutdown must be written to config, because shutdown is default */
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vty_out(vty, " %sshutdown%s", (ms->shutdown != MS_SHUTDOWN_NONE) ? "" : "no ",
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VTY_NEWLINE);
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@ -2727,6 +2737,46 @@ DEFUN(cfg_test_hplmn, cfg_test_hplmn_cmd, "hplmn-search (everywhere|foreign-coun
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return CMD_SUCCESS;
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}
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/* per audio config */
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DEFUN(cfg_ms_audio, cfg_ms_audio_cmd, "audio",
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"Configure audio settings")
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{
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vty->node = AUDIO_NODE;
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return CMD_SUCCESS;
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}
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static int set_audio_io_handler(struct vty *vty, enum audio_io_handler val)
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{
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struct osmocom_ms *ms = (struct osmocom_ms *) vty->index;
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struct gsm_settings *set = &ms->settings;
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/* Don't restart on unchanged value */
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if (val == set->audio.io_handler)
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return CMD_SUCCESS;
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set->audio.io_handler = val;
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/* Restart required */
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vty_restart_if_started(vty, ms);
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return CMD_SUCCESS;
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}
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DEFUN(cfg_ms_audio_io_handler, cfg_ms_audio_io_handler_cmd,
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"io-handler (loopback|none)",
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"Set TCH frame I/O handler\n"
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"Return TCH frame payload back to sender\n"
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"No handler, drop TCH frames (default)")
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{
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int val = get_string_value(audio_io_handler_names, argv[0]);
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return set_audio_io_handler(vty, val);
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}
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DEFUN(cfg_ms_audio_no_io_handler, cfg_ms_audio_no_io_handler_cmd,
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"no io-handler", NO_STR "Disable TCH frame processing")
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{
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return set_audio_io_handler(vty, AUDIO_IOH_NONE);
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}
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DEFUN(cfg_no_shutdown, cfg_ms_no_shutdown_cmd, "no shutdown",
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NO_STR "Activate and run MS")
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{
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@ -2807,6 +2857,7 @@ int ms_vty_go_parent(struct vty *vty)
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break;
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case TESTSIM_NODE:
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case SUPPORT_NODE:
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case AUDIO_NODE:
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vty->node = MS_NODE;
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break;
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default:
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@ -2918,6 +2969,7 @@ int ms_vty_init(void)
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install_element(MS_NODE, &cfg_ms_abbrev_cmd);
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install_element(MS_NODE, &cfg_ms_no_abbrev_cmd);
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install_element(MS_NODE, &cfg_ms_testsim_cmd);
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install_element(MS_NODE, &cfg_ms_audio_cmd);
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install_element(MS_NODE, &cfg_ms_neighbour_cmd);
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install_element(MS_NODE, &cfg_ms_no_neighbour_cmd);
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install_element(MS_NODE, &cfg_ms_any_timeout_cmd);
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@ -2995,6 +3047,10 @@ int ms_vty_init(void)
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install_element(MS_NODE, &cfg_ms_script_load_run_cmd);
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install_element(MS_NODE, &cfg_ms_no_script_load_run_cmd);
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install_node(&audio_node, config_write_dummy);
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install_element(AUDIO_NODE, &cfg_ms_audio_io_handler_cmd);
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install_element(AUDIO_NODE, &cfg_ms_audio_no_io_handler_cmd);
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/* Register the talloc context introspection command */
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osmo_talloc_vty_add_cmds();
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