Cross Reference: /src/sys/arch/x68k/dev/ms.c

Lines Matching refs:ms
1 /*	$NetBSD: ms.c,v 1.42 2024/05/24 20:06:55 andvar Exp $ */
40  *	@(#)ms.c	8.1 (Berkeley) 6/11/93
48 __KERNEL_RCSID(0, "$NetBSD: ms.c,v 1.42 2024/05/24 20:06:55 andvar Exp $");
154 CFATTACH_DECL_NEW(ms, sizeof(struct ms_softc),
215 	struct ms_softc *ms = device_private(self);
220 	ms->ms_dev = self;
221 	callout_init(&ms->ms_modem_ch, 0);
222 	mutex_init(&ms->ms_lock, MUTEX_DEFAULT, IPL_SERIAL);
225 	cs->cs_private = ms;
227 	ms->ms_cs = cs;
240 	ms->ms_ready = 0;
253 	struct ms_softc *ms;
255 	ms = device_lookup_private(&ms_cd, minor(dev));
256 	if (ms == NULL)
260 	if (ms->ms_events.ev_io)
262 	ms->ms_events.ev_io = l->l_proc;
263 	ev_init(&ms->ms_events, device_xname(ms->ms_dev), &ms->ms_lock);
265 	ms->ms_ready = 1;		/* start accepting events */
266 	ms->ms_rts = 1;
267 	ms->ms_byteno = -1;
268 	ms->ms_nodata = 0;
271 	callout_reset(&ms->ms_modem_ch, MS_TICK, ms_modem, ms);
279 	struct ms_softc *ms;
281 	ms = device_lookup_private(&ms_cd, minor(dev));
282 	ms->ms_ready = 0;		/* stop accepting events */
283 	callout_stop(&ms->ms_modem_ch);
284 	ev_fini(&ms->ms_events);
286 	ms->ms_events.ev_io = NULL;
293 	struct ms_softc *ms;
295 	ms = device_lookup_private(&ms_cd, minor(dev));
296 	return ev_read(&ms->ms_events, uio, flags);
302 	struct ms_softc *ms;
304 	ms = device_lookup_private(&ms_cd, minor(dev));
312 		ms->ms_events.ev_async = *(int *)data != 0;
316 		if (-*(int *)data != ms->ms_events.ev_io->p_pgid
317 		    && *(int *)data != ms->ms_events.ev_io->p_pid)
322 		if (*(int *)data != ms->ms_events.ev_io->p_pgid)
342 	struct ms_softc *ms;
344 	ms = device_lookup_private(&ms_cd, minor(dev));
345 	return ev_poll(&ms->ms_events, events, l);
351 	struct ms_softc *ms;
353 	ms = device_lookup_private(&ms_cd, minor(dev));
354 	return ev_kqfilter(&ms->ms_events, kn);
365 ms_input(struct ms_softc *ms, int c)
376 	if (ms->ms_ready == 0)
379 	ms->ms_nodata = 0;
385 	switch (ms->ms_byteno) {
392 		ms->ms_byteno = 1;
393 		ms->ms_mb = c & 0x3;
398 		ms->ms_byteno = 2;
399 		ms->ms_dx += (char)c;
404 		ms->ms_byteno = -1;
405 		ms->ms_dy += (char)c;
421 	get = ms->ms_events.ev_get;
422 	put = ms->ms_events.ev_put;
423 	fe = &ms->ms_events.ev_q[put];
436 		fe = &ms->ms_events.ev_q[0]; \
439 	mb = ms->ms_mb;
440 	ub = ms->ms_ub;
455 	if (ms->ms_dx) {
458 		fe->value = ms->ms_dx;
461 		ms->ms_dx = 0;
464 	if (ms->ms_dy) {
476 		fe->value = -ms->ms_dy;
479 		ms->ms_dy = 0;
484 		ms->ms_ub = ub;
485 		ms->ms_events.ev_put = put;
486 		ev_wakeup(&ms->ms_events);
497 	struct ms_softc *ms;
501 	ms = cs->cs_private;
502 	put = ms->ms_rbput;
516 	ms->ms_rbuf[put] = (c << 8) | rr1;
520 	if (put_next == ms->ms_rbget) {
521 		ms->ms_intr_flags |= INTR_RX_OVERRUN;
528 	ms->ms_rbput = put;
538 	struct ms_softc *ms;
540 	ms = cs->cs_private;
542 	ms->ms_intr_flags |= INTR_TX_EMPTY;
551 	struct ms_softc *ms;
554 	ms = cs->cs_private;
568 	ms->ms_intr_flags |= INTR_ST_CHECK;
578 	struct ms_softc *ms;
583 	ms = cs->cs_private;
585 	mutex_enter(&ms->ms_lock);
586 	intr_flags = ms->ms_intr_flags;
587 	ms->ms_intr_flags = 0;
592 	get = ms->ms_rbget;
593 	while (get != ms->ms_rbput) {
594 		ring_data = ms->ms_rbuf[get];
595 		mutex_exit(&ms->ms_lock);
605 			    device_xname(ms->ms_dev), ring_data);
610 		ms_input(ms, c);
611 		mutex_enter(&ms->ms_lock);
613 	mutex_exit(&ms->ms_lock);
617 		    device_xname(ms->ms_dev));
619 	ms->ms_rbget = get;
626 		    device_xname(ms->ms_dev));
634 		    device_xname(ms->ms_dev));
635 		mutex_enter(&ms->ms_lock);
637 		mutex_exit(&ms->ms_lock);
664 	struct ms_softc *ms = arg;
666 	if (!ms->ms_ready)
669 	mutex_enter(&ms->ms_lock);
671 	if (ms->ms_nodata++ > MS_TIMEOUT) {
673 		    device_xname(ms->ms_dev), MS_TIMEOUT_SEC);
674 		ms->ms_byteno = -1;
675 		ms->ms_nodata = 0;
676 		ms->ms_rts = 0;
679 	if (ms->ms_rts) {
680 		if (ms->ms_byteno == -1) {
682 			ms->ms_rts = 0;
683 			ms_trigger(ms->ms_cs, ms->ms_rts);
684 			ms->ms_byteno = 0;
687 		ms->ms_rts = 1;
688 		ms_trigger(ms->ms_cs, ms->ms_rts);
691 ms->ms_lock);
692 	callout_schedule(&ms->ms_modem_ch, MS_TICK);
OpenGrok
