ts Make the e1inp_ts delay configurable

Currently the nanoBTS bootstrap code requires a high delay
otherwise we are not bringing the device up properly. Changing
the init code turns out harder than it seems like. So this is
a workaround for that to allow a high speed RSL/OML connection
after the bringup.

The line driver can have a default TS delay. It is set to the
current default for the nanoBTS and the BS11. For the ipaccess
case we will set the delay lower for the RSL connection and
inside the ipaccess-config we can set it low right away to
have fast firmware flashing and such.

openbsc/include/openbsc/e1_input.h

@@ -66,6 +66,8 @@ struct e1inp_ts {
 		struct {
 			/* list of all signalling links on this TS */
 			struct llist_head sign_links;
+			/* delay for the queue */
+			int delay;
 			/* timer when to dequeue next frame */
 			struct timer_list tx_timer;
 		} sign;
@@ -93,6 +95,7 @@ struct e1inp_driver {
 	struct llist_head list;
 	const char *name;
 	int (*want_write)(struct e1inp_ts *ts);
+	int default_delay;
 };	
 
 struct e1inp_line {

openbsc/src/e1_input.c

@@ -303,6 +303,10 @@ int e1inp_ts_config(struct e1inp_ts *ts, struct e1inp_line *line,
 
 	switch (type) {
 	case E1INP_TS_TYPE_SIGN:
+		if (line->driver)
+			ts->sign.delay = line->driver->default_delay;
+		else
+			ts->sign.delay = 100000;
 		INIT_LLIST_HEAD(&ts->sign.sign_links);
 		break;
 	case E1INP_TS_TYPE_TRAU:

openbsc/src/input/ipaccess.c

@@ -282,6 +282,7 @@ static int ipaccess_rcvmsg(struct e1inp_line *line, struct msgb *msg,
 			trx->rsl_link = e1inp_sign_link_create(e1i_ts,
 							E1INP_SIGN_RSL, trx,
 							trx->rsl_tei, 0);
+			trx->rsl_link->ts->sign.delay = 10;
 
 			/* get rid of our old temporary bfd */
 			memcpy(newbfd, bfd, sizeof(*newbfd));
@@ -589,7 +590,7 @@ static int handle_ts1_write(struct bsc_fd *bfd)
 	e1i_ts->sign.tx_timer.data = e1i_ts;
 
 	/* Reducing this might break the nanoBTS 900 init. */
-	bsc_schedule_timer(&e1i_ts->sign.tx_timer, 0, 100000);
+	bsc_schedule_timer(&e1i_ts->sign.tx_timer, 0, e1i_ts->sign.delay);
 
 	return ret;
 }
@@ -622,6 +623,7 @@ static int ipaccess_fd_cb(struct bsc_fd *bfd, unsigned int what)
 struct e1inp_driver ipaccess_driver = {
 	.name = "ip.access",
 	.want_write = ts_want_write,
+	.default_delay = 100000,
 };
 
 /* callback of the OML listening filedescriptor */

openbsc/src/input/misdn.c

@@ -247,7 +247,7 @@ static int handle_ts1_write(struct bsc_fd *bfd)
 	/* set tx delay timer for next event */
 	e1i_ts->sign.tx_timer.cb = timeout_ts1_write;
 	e1i_ts->sign.tx_timer.data = e1i_ts;
-	bsc_schedule_timer(&e1i_ts->sign.tx_timer, 0, 50000);
+	bsc_schedule_timer(&e1i_ts->sign.tx_timer, 0, e1i_ts->sign.delay);
 
 	return ret;
 }
@@ -387,6 +387,7 @@ static int activate_bchan(struct e1inp_line *line, int ts, int act)
 struct e1inp_driver misdn_driver = {
 	.name = "mISDNuser",
 	.want_write = ts_want_write,
+	.default_delay = 50000,
 };
 
 static int mi_e1_setup(struct e1inp_line *line, int release_l2)

openbsc/src/ipaccess/ipaccess-config.c

@@ -865,6 +865,8 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 	
+	bts->oml_link->ts->sign.delay = 10;
+	bts->c0->rsl_link->ts->sign.delay = 10;
 	while (1) {
 		rc = bsc_select_main(0);
 		if (rc < 0)