772 static int  init_zs_linemon  (queue_t *, queue_t *);	/* handle line monitor for "zs" driver */
808 		if (dname && !strcmp(dname, "zs"))  in init_linemon()
837 		if (dname && !strcmp(dname, "zs"))  in close_linemon()
854 static void zs_xsisr         (struct zscom *);	/* zs external status interupt handler */
858  * sz:zs_usec_delay and zs:initzsops()
876 	register struct zscom *zs;  in init_zs_linemon()  local
884 	zs = ((struct asyncline *)q->q_ptr)->za_common;  in init_zs_linemon()
885 	if (!zs)  in init_zs_linemon()
911 			mutex_enter(zs->zs_excl);  in init_zs_linemon()
915 			szs->zsops            = *zs->zs_ops;  in init_zs_linemon()
917 			szs->oldzsops         = zs->zs_ops;  in init_zs_linemon()
918 			emergencyzs           = zs->zs_ops;  in init_zs_linemon()
920 			zs->zs_ops = &szs->zsops; /* hook it up */  in init_zs_linemon()
925 			zs->zs_xsint          = (void (*) (struct zscom *))zs_xsisr;  in init_zs_linemon()
927 			mutex_exit(zs->zs_excl);  in init_zs_linemon()
938  * whatever block ZS status interrupts)
946 	register struct zscom *zs;  in close_zs_linemon()  local
949 	zs = ((struct asyncline *)q->q_ptr)->za_common;  in close_zs_linemon()
950 	if (!zs)  in close_zs_linemon()
961 		mutex_enter(zs->zs_excl);  in close_zs_linemon()
963 		zs->zs_ops = szs->oldzsops; /* reset to previous handler functions */  in close_zs_linemon()
968 		zs->zs_xsint = zs->zs_ops->zsop_xsint;  in close_zs_linemon()
970 		mutex_exit(zs->zs_excl);  in close_zs_linemon()
988 	 struct zscom *zs  in zs_xsisr()  argument
991 	register struct asyncline *za = (void *)zs->zs_priv;  in zs_xsisr()
1129 				    zsisr(zs);  in zs_xsisr()
1156 	    emergencyzs->zsop_xsint(zs);  in zs_xsisr()