anetz: Add release timer, so station keeps blocked for a while
This prevents other mobile phone or outgoing call to seize the base station before the current phone releases the transmitter.pull/1/head
parent
0dc81fe210
commit
e9234e3926
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@ -37,6 +37,7 @@ static int new_callref = 0x40000000;
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/* Timers */
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#define PAGING_TO 30 /* Nach dieser Zeit ist der Operator genervt... */
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#define RELEASE_TO 3 /* Release time, so station keeps blocked for a while */
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/* Convert channel number to frequency number of base station.
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Set 'unterband' to 1 to get frequency of mobile station. */
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@ -205,6 +206,18 @@ static void anetz_go_idle(anetz_t *anetz)
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anetz->station_id[0] = '\0';
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}
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/* Release connection towards mobile station by sending idle tone for a while. */
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static void anetz_release(anetz_t *anetz)
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{
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timer_stop(&anetz->timer);
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PDEBUG(DANETZ, DEBUG_INFO, "Sending 2280 Hz release tone.\n");
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anetz->state = ANETZ_AUSLOESEN;
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anetz->dsp_mode = DSP_MODE_TONE;
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anetz->station_id[0] = '\0';
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timer_start(&anetz->timer, RELEASE_TO);
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}
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/* Enter paging state and transmit 4 paging tones. */
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static void anetz_page(anetz_t *anetz, const char *dial_string, double *freq)
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{
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@ -221,7 +234,7 @@ void anetz_loss_indication(anetz_t *anetz)
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{
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if (anetz->state == ANETZ_GESPRAECH) {
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PDEBUG(DANETZ, DEBUG_NOTICE, "Detected loss of signal, releasing.\n");
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anetz_go_idle(anetz);
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anetz_release(anetz);
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call_in_release(anetz->sender.callref, CAUSE_TEMPFAIL);
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anetz->sender.callref = 0;
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}
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@ -259,8 +272,8 @@ void anetz_receive_tone(anetz_t *anetz, int tone)
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PDEBUG(DANETZ, DEBUG_INFO, "1750 Hz signal from mobile station is gone, setup call.\n");
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rc = call_in_setup(callref, anetz->station_id, "0");
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if (rc < 0) {
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PDEBUG(DANETZ, DEBUG_NOTICE, "Call rejected (cause %d), releasing.\n", -rc);
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anetz_go_idle(anetz);
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PDEBUG(DANETZ, DEBUG_NOTICE, "Call rejected (cause %d), sending release tone.\n", -rc);
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anetz_release(anetz);
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break;
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}
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anetz->sender.callref = callref;
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@ -272,8 +285,8 @@ void anetz_receive_tone(anetz_t *anetz, int tone)
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}
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/* release call */
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if (tone == 1) {
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PDEBUG(DANETZ, DEBUG_INFO, "Received 1750 Hz release signal from mobile station, sending idle signal.\n");
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anetz_go_idle(anetz);
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PDEBUG(DANETZ, DEBUG_INFO, "Received 1750 Hz release signal from mobile station, sending release tone.\n");
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anetz_release(anetz);
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call_in_release(anetz->sender.callref, CAUSE_NORMAL);
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anetz->sender.callref = 0;
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break;
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@ -305,6 +318,9 @@ static void anetz_timeout(struct timer *timer)
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call_in_release(anetz->sender.callref, CAUSE_NOANSWER);
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anetz->sender.callref = 0;
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break;
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case ANETZ_AUSLOESEN:
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anetz_go_idle(anetz);
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break;
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default:
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break;
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}
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@ -425,8 +441,8 @@ void call_out_release(int callref, int cause)
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switch (anetz->state) {
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case ANETZ_GESPRAECH:
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PDEBUG(DANETZ, DEBUG_NOTICE, "Outgoing release, during call, going idle!\n");
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anetz_go_idle(anetz);
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PDEBUG(DANETZ, DEBUG_NOTICE, "Outgoing release, during call, sending release tone!\n");
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anetz_release(anetz);
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break;
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case ANETZ_ANRUF:
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PDEBUG(DANETZ, DEBUG_NOTICE, "Outgoing release, during alerting, going idle!\n");
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@ -11,6 +11,7 @@ enum anetz_state {
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ANETZ_FREI, /* sending 2280 Hz tone */
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ANETZ_GESPRAECH, /* during conversation */
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ANETZ_ANRUF, /* phone is paged */
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ANETZ_AUSLOESEN, /* releasing towards phone */
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};
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typedef struct anetz {
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