333 	struct zs_chanstate *cs;  in zstty_attach()  local
348 	cs = zsc->zsc_cs[channel];  in zstty_attach()
349 	cs->cs_private = zst;  in zstty_attach()
350 	cs->cs_ops = &zsops_tty;  in zstty_attach()
352 	zst->zst_cs = cs;  in zstty_attach()
388 	if (zs_check_kgdb(cs, dev)) {  in zstty_attach()
421 	if (!cs->enable)  in zstty_attach()
422 		cs->enabled = 1;  in zstty_attach()
438 		t.c_ospeed = cs->cs_defspeed;  in zstty_attach()
439 		t.c_cflag = cs->cs_defcflag;  in zstty_attach()
447 		SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE);  in zstty_attach()
461 	mutex_spin_enter(&cs->cs_lock);  in zstty_attach()
463 		zs_write_reg(cs, 9, resetbit);  in zstty_attach()
465 	mutex_spin_exit(&cs->cs_lock);  in zstty_attach()
486 	struct zs_chanstate *cs = zst->zst_cs;  in zs_shutdown()  local
489 	mutex_spin_enter(&cs->cs_lock);  in zs_shutdown()
496 	zs_break(cs, 0);  in zs_shutdown()
504 		mutex_spin_exit(&cs->cs_lock);  in zs_shutdown()
509 		(void) tsleep(cs, TTIPRI, ttclos, hz);  in zs_shutdown()
514 		mutex_spin_enter(&cs->cs_lock);  in zs_shutdown()
519 		CLR(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE);  in zs_shutdown()
520 		cs->cs_creg[1] = cs->cs_preg[1];  in zs_shutdown()
521 		zs_write_reg(cs, 1, cs->cs_creg[1]);  in zs_shutdown()
525 	if (cs->disable) {  in zs_shutdown()
527 		if (!cs->enabled)  in zs_shutdown()
530 		(*cs->disable)(zst->zst_cs);  in zs_shutdown()
533 	mutex_spin_exit(&cs->cs_lock);  in zs_shutdown()
543 	struct zs_chanstate *cs;  in zsopen()  local
552 	cs = zst->zst_cs;  in zsopen()
579 		if (cs->enable) {  in zsopen()
580 			if ((*cs->enable)(cs)) {  in zsopen()
593 		t.c_ospeed = cs->cs_defspeed;  in zsopen()
594 		t.c_cflag = cs->cs_defcflag;  in zsopen()
604 		mutex_spin_enter(&cs->cs_lock);  in zsopen()
612 		SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE);  in zsopen()
623 		mutex_spin_exit(&cs->cs_lock);  in zsopen()
648 		mutex_spin_enter(&cs->cs_lock);  in zsopen()
662 		zs_iflush(cs);  in zsopen()
666 		mutex_spin_exit(&cs->cs_lock);  in zsopen()
767 	struct zs_chanstate *cs;  in zsioctl()  local
772 	cs = zst->zst_cs;  in zsioctl()
783 	error = ZS_MD_IOCTL(cs, cmd, data);  in zsioctl()
790 	mutex_spin_enter(&cs->cs_lock);  in zsioctl()
794 		zs_break(cs, 1);  in zsioctl()
798 		zs_break(cs, 0);  in zsioctl()
850 		if (cs->cs_rr0_pps == 0) {  in zsioctl()
871 		if (!cs->cs_heldchange) {  in zsioctl()
875 				cs->cs_heldchange = 1;  in zsioctl()
877 				zs_loadchannelregs(cs);  in zsioctl()
887 	mutex_spin_exit(&cs->cs_lock);  in zsioctl()
899 	struct zs_chanstate *cs;  in zsstart()  local
904 	cs = zst->zst_cs;  in zsstart()
917 	mutex_spin_enter(&cs->cs_lock);  in zsstart()
926 		zs_dma_setup(cs, zst->zst_tba, zst->zst_tbc);  in zsstart()
927 		mutex_spin_exit(&cs->cs_lock);  in zsstart()
933 	zs_write_data(cs, *zst->zst_tba);  in zsstart()
937 	mutex_spin_exit(&cs->cs_lock);  in zsstart()
970 	struct zs_chanstate *cs;  in zsparam()  local
977 	cs = zst->zst_cs;  in zsparam()
1011 	error = zs_set_speed(cs, ospeed);  in zsparam()
1014 	error = zs_set_modes(cs, cflag);  in zsparam()
1027 	mutex_spin_enter(&cs->cs_lock);  in zsparam()
1035 	tmp3 = cs->cs_preg[3];  in zsparam()
1036 	tmp5 = cs->cs_preg[5];  in zsparam()
1057 	cs->cs_preg[3] = tmp3;  in zsparam()
1058 	cs->cs_preg[5] = tmp5;  in zsparam()
1065 	tmp4 = cs->cs_preg[4];  in zsparam()
1075 	cs->cs_preg[4] = tmp4;  in zsparam()
1086 	if (!cs->cs_heldchange) {  in zsparam()
1090 			cs->cs_heldchange = 1;  in zsparam()
1092 			zs_loadchannelregs(cs);  in zsparam()
1106 			cs->cs_softreq = 1;  in zsparam()
1121 	zstty_stint(cs, 1);  in zsparam()
1123 	mutex_spin_exit(&cs->cs_lock);  in zsparam()
1136 	zstty_softint1(cs);  in zsparam()
1149 	struct zs_chanstate *cs = zst->zst_cs;  in zs_maskintr()  local
1152 	cs->cs_rr0_mask = cs->cs_rr0_cts | cs->cs_rr0_dcd;  in zs_maskintr()
1154 		cs->cs_rr0_mask |= cs->cs_rr0_pps;  in zs_maskintr()
1155 	tmp15 = cs->cs_preg[15];  in zs_maskintr()
1156 	if (ISSET(cs->cs_rr0_mask, ZSRR0_DCD))  in zs_maskintr()
1160 	if (ISSET(cs->cs_rr0_mask, ZSRR0_CTS))  in zs_maskintr()
1164 	cs->cs_preg[15] = tmp15;  in zs_maskintr()
1176 	struct zs_chanstate *cs = zst->zst_cs, *ccs;  in zs_modem()  local
1178 	if (cs->cs_wr5_dtr == 0)  in zs_modem()
1181 	ccs = (cs->cs_ctl_chan != NULL ? cs->cs_ctl_chan : cs);  in zs_modem()
1184 		SET(ccs->cs_preg[5], cs->cs_wr5_dtr);  in zs_modem()
1186 		CLR(ccs->cs_preg[5], cs->cs_wr5_dtr);  in zs_modem()
1188 	if (!cs->cs_heldchange) {  in zs_modem()
1192 			cs->cs_heldchange = 1;  in zs_modem()
1194 			zs_loadchannelregs(cs);  in zs_modem()
1205 	struct zs_chanstate *cs = zst->zst_cs, *ccs;  in tiocm_to_zs()  local
1208 	ccs = (cs->cs_ctl_chan != NULL ? cs->cs_ctl_chan : cs);  in tiocm_to_zs()
1231 	if (!cs->cs_heldchange) {  in tiocm_to_zs()
1235 			cs->cs_heldchange = 1;  in tiocm_to_zs()
1237 			zs_loadchannelregs(cs);  in tiocm_to_zs()
1248 	struct zs_chanstate *cs = zst->zst_cs, *ccs;  in zs_to_tiocm()  local
1252 	ccs = (cs->cs_ctl_chan != NULL ? cs->cs_ctl_chan : cs);  in zs_to_tiocm()
1260 	zsbits = cs->cs_rr0;  in zs_to_tiocm()
1279 	struct zs_chanstate *cs;  in zshwiflow()  local
1282 	cs = zst->zst_cs;  in zshwiflow()
1284 	if (cs->cs_wr5_rts == 0)  in zshwiflow()
1287 	mutex_spin_enter(&cs->cs_lock);  in zshwiflow()
1297 			cs->cs_softreq = 1;  in zshwiflow()
1304 	mutex_spin_exit(&cs->cs_lock);  in zshwiflow()
1315 	struct zs_chanstate *cs = zst->zst_cs, *ccs;  in zs_hwiflow()  local
1317 	if (cs->cs_wr5_rts == 0)  in zs_hwiflow()
1320 	ccs = (cs->cs_ctl_chan != NULL ? cs->cs_ctl_chan : cs);  in zs_hwiflow()
1323 		CLR(ccs->cs_preg[5], cs->cs_wr5_rts);  in zs_hwiflow()
1324 		CLR(ccs->cs_creg[5], cs->cs_wr5_rts);  in zs_hwiflow()
1326 		SET(ccs->cs_preg[5], cs->cs_wr5_rts);  in zs_hwiflow()
1327 		SET(ccs->cs_creg[5], cs->cs_wr5_rts);  in zs_hwiflow()
1348 zstty_rxint(struct zs_chanstate *cs)  in zstty_rxint()  argument
1350 	struct zstty_softc *zst = cs->cs_private;  in zstty_rxint()
1364 		rr1 = zs_read_reg(cs, 1);  in zstty_rxint()
1365 		c = zs_read_data(cs);  in zstty_rxint()
1369 			zs_write_csr(cs, ZSWR0_RESET_ERRORS);  in zstty_rxint()
1380 		rr0 = zs_read_csr(cs);  in zstty_rxint()
1395 		cs->cs_softreq = 1;  in zstty_rxint()
1414 		CLR(cs->cs_preg[1], ZSWR1_RIE);  in zstty_rxint()
1415 		cs->cs_creg[1] = cs->cs_preg[1];  in zstty_rxint()
1416 		zs_write_reg(cs, 1, cs->cs_creg[1]);  in zstty_rxint()
1429 zstty_txint(struct zs_chanstate *cs)  in zstty_txint()  argument
1431 	struct zstty_softc *zst = cs->cs_private;  in zstty_txint()
1433 	zs_write_csr(cs, ZSWR0_RESET_TXINT);  in zstty_txint()
1439 	if (cs->cs_heldchange) {  in zstty_txint()
1440 		zs_loadchannelregs(cs);  in zstty_txint()
1441 		cs->cs_heldchange = 0;  in zstty_txint()
1448 		zs_write_data(cs, *zst->zst_tba);  in zstty_txint()
1455 			cs->cs_softreq = 1;  in zstty_txint()
1465 zstty_stint(struct zs_chanstate *cs, int force)  in zstty_stint()  argument
1467 	struct zstty_softc *zst = cs->cs_private;  in zstty_stint()
1470 	rr0 = zs_read_csr(cs);  in zstty_stint()
1471 	zs_write_csr(cs, ZSWR0_RESET_STATUS);  in zstty_stint()
1481 		delta = rr0 ^ cs->cs_rr0;  in zstty_stint()
1483 		delta = cs->cs_rr0_mask;  in zstty_stint()
1484 	cs->cs_rr0 = rr0;  in zstty_stint()
1486 	if (ISSET(delta, cs->cs_rr0_mask)) {  in zstty_stint()
1487 		SET(cs->cs_rr0_delta, delta);  in zstty_stint()
1498 				    (ISSET(cs->cs_rr0, zst->zst_ppsmask))  in zstty_stint()
1509 		if (ISSET(~rr0, cs->cs_rr0_mask)) {  in zstty_stint()
1515 		cs->cs_softreq = 1;  in zstty_stint()
1542 	struct zs_chanstate *cs = zst->zst_cs;  in zstty_rxsoft()  local
1618 		mutex_spin_enter(&cs->cs_lock);  in zstty_rxsoft()
1624 				SET(cs->cs_preg[1], ZSWR1_RIE);  in zstty_rxsoft()
1625 				cs->cs_creg[1] = cs->cs_preg[1];  in zstty_rxsoft()
1626 				zs_write_reg(cs, 1, cs->cs_creg[1]);  in zstty_rxsoft()
1633 		mutex_spin_exit(&cs->cs_lock);  in zstty_rxsoft()
1644 	struct zs_chanstate *cs = zst->zst_cs;  in zstty_txsoft()  local
1646 	mutex_spin_enter(&cs->cs_lock);  in zstty_txsoft()
1652 	mutex_spin_exit(&cs->cs_lock);  in zstty_txsoft()
1659 	struct zs_chanstate *cs = zst->zst_cs;  in zstty_stsoft()  local
1662 	mutex_spin_enter(&cs->cs_lock);  in zstty_stsoft()
1663 	rr0 = cs->cs_rr0;  in zstty_stsoft()
1664 	delta = cs->cs_rr0_delta;  in zstty_stsoft()
1665 	cs->cs_rr0_delta = 0;  in zstty_stsoft()
1666 	mutex_spin_exit(&cs->cs_lock);  in zstty_stsoft()
1668 	if (ISSET(delta, cs->cs_rr0_dcd)) {  in zstty_stsoft()
1675 	if (ISSET(delta, cs->cs_rr0_cts)) {  in zstty_stsoft()
1677 		if (ISSET(rr0, cs->cs_rr0_cts)) {  in zstty_stsoft()
1699 zstty_softint(struct zs_chanstate *cs)  in zstty_softint()  argument
1702 	zstty_softint1(cs);  in zstty_softint()
1706 zstty_softint1(struct zs_chanstate *cs)  in zstty_softint1()  argument
1708 	struct zstty_softc *zst = cs->cs_private;  in zstty_softint1()
1739 	struct zs_chanstate *cs = arg;  in zstty_txdma_int()  local
1740 	struct zstty_softc *zst = cs->cs_private;  in zstty_txdma_int()
1748 		cs->cs_softreq = 1;  in zstty_txdma_int()