sun/io/zs_common.c

70 #define	KIOIP		KSTAT_INTR_PTR(zs->intrstats)
127 void	zsopinit(struct zscom *zs, struct zsops *zso);
129 static void zsnull_intr(struct zscom *zs);
130 static int zsnull_softint(struct zscom *zs);
131 static int zsnull_suspend(struct zscom *zs);
132 static int zsnull_resume(struct zscom *zs);
313 	struct zscom	*zs;
330 		zs = &zscom[current_chip*2];
334 		if (!zs->zs_resume || (zs->zs_resume)(zs) != DDI_SUCCESS)
339 		zs++;
340 		if (!zs->zs_resume || (zs->zs_resume)(zs) != DDI_SUCCESS) {
341 			zs--;
342 			if (!zs->zs_suspend ||
343 			    (zs->zs_suspend)(zs) != DDI_SUCCESS)
345 				    "zs: inconsistent suspend/resume state");
366 		i = GETPROP(dev, "zs-usec-delay", 0);
372 		    "zs: unable to allocate resources for  chip %d.",
374 		cmn_err(CE_WARN, "Change zs:maxzs in /etc/system");
377 	zs = &zscom[current_chip*2];
382 	if (ddi_map_regs(dev, 0, (caddr_t *)&zs->zs_addr, 0, 0)) {
383 		cmn_err(CE_WARN, "zs%d: unable to map registers\n",
388 	tmpzs = zs->zs_addr;
403 	 * we're doing to the zs. This has caused some pretty funny bugs
465 			zs->zs_addr = (struct zscc_device *)
467 			(zs+1)->zs_excl_hi = zs->zs_excl_hi = &zs_curr_lock;
469 			zs++;
470 			zs->zs_addr = (struct zscc_device *)
472 			zscurr = zs;
474 		zs->zs_unit = current_chip * 2 + i;
475 		zs->zs_dip = dev;
476 		zs->zs_excl = kmem_zalloc(sizeof (kmutex_t), KM_SLEEP);
477 		mutex_init(zs->zs_excl, NULL, MUTEX_DRIVER, (void *)ZS_PL);
478 		zs->zs_ocexcl = kmem_zalloc(sizeof (kmutex_t), KM_SLEEP);
479 		mutex_init(zs->zs_ocexcl, NULL, MUTEX_DRIVER, (void *)ZS_PL);
481 		zsopinit(zs, &zsops_null);
485 		zssoftCAR[zs->zs_unit] = softcd;
489 		keyboard_prop = GETPROP((dev_info_t *)(zs->zs_dip),
524 		zs->zs_dtrlow = gethrestime_sec() - default_dtrlow;
525 		cv_init(&zs->zs_flags_cv, NULL, CV_DEFAULT, NULL);
526 		zsa_init(zs);
546 		cmn_err(CE_PANIC, "cannot set high level zs interrupt");
555 			    "cannot set second stage zs interrupt");
562 	if (zs > zslast)
563 		zslast = zs;
572 	if (!GETPROP(zs->zs_dip, "keyboard", 0)) {
699 	zs->intrstats = kstat_create("zs", current_chip, name, "controller",
701 	if (zs->intrstats) {
702 		kstat_install(zs->intrstats);
711 	struct zscom *zs;
719 		zs = &zscom[current_chip*2];
723 		if (!zs->zs_suspend || (zs->zs_suspend)(zs) != DDI_SUCCESS)
728 		zs++;
729 		if (!zs->zs_suspend || (zs->zs_suspend)(zs) != DDI_SUCCESS) {
730 			zs--;
731 			if (!zs->zs_resume ||
732 			    (zs->zs_resume)(zs) != DDI_SUCCESS)
734 				    "zs: inconsistent suspend/resume state");
771 	struct zscom	*zs;
777 	zs = zscurr;				/* Points at Channel B */
779 	ZSNEXTPOLL(zs, zscurr);
786 			(zs->zs_xsint)(zs);
789 				(zs->zs_txint)(zs);
793 					(zs->zs_srint)(zs);
795 					(zs->zs_rxint)(zs);
799 		zs -= 1;
801 			(zs->zs_xsint)(zs);
804 				(zs->zs_txint)(zs);
808 					(zs->zs_srint)(zs);
810 					(zs->zs_rxint)(zs);
814 		zs = zscurr;
821 			zs += 2;	/* Always Channel B */
822 			if (zs > zslast)
823 				zs = &zscom[1];
824 			if (!zs->zs_ops)
828 				zscurr = zs;	/* update zscurr and */
832 		if (zs->intrstats) {
839 	if (zs->intrstats) {
854 	struct zscom *zs;
871 		for (zs = &zscom[0]; zs <= zslast; zs++) {
872 			if (zs->zs_flags & ZS_NEEDSOFT) {
873 				zs->zs_flags &= ~ZS_NEEDSOFT;
874 				(*zs->zs_ops->zsop_softint)(zs);
875 				if (zs->intrstats) {
896 zsopinit(struct zscom *zs, struct zsops *zso)
898 	zs->zs_txint	= zso->zsop_txint;
899 	zs->zs_xsint	= zso->zsop_xsint;
900 	zs->zs_rxint	= zso->zsop_rxint;
901 	zs->zs_srint	= zso->zsop_srint;
902 	zs->zs_suspend	= zso->zsop_suspend;
903 	zs->zs_resume	= zso->zsop_resume;
904 	zs->zs_ops	= zso;
905 	zs->zs_flags	= 0;
916 zsmctl(struct zscom *zs, int bits, int how)
921 	ASSERT(mutex_owned(zs->zs_excl_hi));
922 	ASSERT(mutex_owned(zs->zs_excl));
925 	mbits = zs->zs_wreg[5] & (ZSWR5_RTS|ZSWR5_DTR);
950 	held = now - zs->zs_dtrlow;
956 		zs->zs_dtrlow = now;
962 		mutex_exit(zs->zs_excl_hi);
963 		cv_wait(&lbolt_cv, zs->zs_excl);
964 		if (zs->zs_suspended)
965 			(void) ddi_dev_is_needed(zs->zs_dip, 0, 1);
966 		mutex_enter(zs->zs_excl_hi);
970 	zs->zs_wreg[5] &= ~(ZSWR5_RTS|ZSWR5_DTR);
981 	struct zscom *zs = zspp->zs;
986 	ASSERT(mutex_owned(zs->zs_excl));
987 	ASSERT(mutex_owned(zs->zs_excl_hi));
1062 zsnull_intr(struct zscom *zs)
1077 zsnull_softint(struct zscom *zs)
1079 	cmn_err(CE_WARN, "zs%d: unexpected soft int\n", zs->zs_unit);
1084  * These will be called on suspend/resume for un-opened zs ports.
1087 zsnull_suspend(struct zscom *zs)
1089 	struct zs_prog	*zspp = &zs_prog[zs->zs_unit];
1094 	mutex_enter(zs->zs_excl);
1095 	mutex_enter(zs->zs_excl_hi);
1096 	zspp->zs = zs;
1098 	zspp->wr3 = zs->zs_wreg[3];
1099 	zspp->wr4 = zs->zs_wreg[4];
1100 	zspp->wr5 = zs->zs_wreg[5];
1101 	zspp->wr11 = zs->zs_wreg[11];
1102 	zspp->wr12 = zs->zs_wreg[12];
1103 	zspp->wr13 = zs->zs_wreg[13];
1104 	zspp->wr15 = zs->zs_wreg[15];
1105 	mutex_exit(zs->zs_excl_hi);
1106 	mutex_exit(zs->zs_excl);
1112 zsnull_resume(struct zscom *zs)
1114 	struct zs_prog	*zspp = &zs_prog[zs->zs_unit];
1119 	mutex_enter(zs->zs_excl);
1120 	mutex_enter(zs->zs_excl_hi);
1124 	mutex_exit(zs->zs_excl_hi);
1125 	mutex_exit(zs->zs_excl);