Missed in last bus.h commit

3 files changed, 533 insertions, 1401 deletions

diff --git a/sys/dev/isa/lpt_isa.c b/sys/dev/isa/lpt_isa.c
new file mode 100644
index 00000000000..024627911ee
--- /dev/null
+++ b/sys/dev/isa/lpt_isa.c
@@ -0,0 +1,165 @@
+/*	$OpenBSD: lpt_isa.c,v 1.1 1996/11/29 23:51:13 niklas Exp $	*/
+
+/*
+ * Copyright (c) 1993, 1994 Charles Hannum.
+ * Copyright (c) 1990 William F. Jolitz, TeleMuse
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This software is a component of "386BSD" developed by 
+ *	William F. Jolitz, TeleMuse.
+ * 4. Neither the name of the developer nor the name "386BSD"
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS A COMPONENT OF 386BSD DEVELOPED BY WILLIAM F. JOLITZ 
+ * AND IS INTENDED FOR RESEARCH AND EDUCATIONAL PURPOSES ONLY. THIS 
+ * SOFTWARE SHOULD NOT BE CONSIDERED TO BE A COMMERCIAL PRODUCT. 
+ * THE DEVELOPER URGES THAT USERS WHO REQUIRE A COMMERCIAL PRODUCT 
+ * NOT MAKE USE OF THIS WORK.
+ *
+ * FOR USERS WHO WISH TO UNDERSTAND THE 386BSD SYSTEM DEVELOPED
+ * BY WILLIAM F. JOLITZ, WE RECOMMEND THE USER STUDY WRITTEN 
+ * REFERENCES SUCH AS THE  "PORTING UNIX TO THE 386" SERIES 
+ * (BEGINNING JANUARY 1991 "DR. DOBBS JOURNAL", USA AND BEGINNING 
+ * JUNE 1991 "UNIX MAGAZIN", GERMANY) BY WILLIAM F. JOLITZ AND 
+ * LYNNE GREER JOLITZ, AS WELL AS OTHER BOOKS ON UNIX AND THE 
+ * ON-LINE 386BSD USER MANUAL BEFORE USE. A BOOK DISCUSSING THE INTERNALS 
+ * OF 386BSD ENTITLED "386BSD FROM THE INSIDE OUT" WILL BE AVAILABLE LATE 1992.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Device Driver for AT parallel printer port
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/isa/lptreg.h>
+
+int lpt_isa_probe __P((struct device *, void *, void *));
+void lpt_isa_attach __P((struct device *, struct device *, void *));
+
+struct cfattach lpt_isa_ca = {
+	sizeof(struct lpt_softc), lpt_isa_probe, lpt_isa_attach
+};
+
+int
+lpt_isa_probe(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	struct isa_attach_args *ia = aux;
+	bus_space_tag_t iot;
+	bus_space_handle_t ioh;
+	u_long base;
+	u_char mask, data;
+	int i, rv;
+
+#ifdef DEBUG
+#define	ABORT								     \
+	do {								     \
+		printf("lpt_isa_probe: mask %x data %x failed\n", mask,	     \
+		    data);						     \
+		goto out;						     \
+	} while (0)
+#else
+#define	ABORT	goto out
+#endif
+
+	iot = ia->ia_iot;
+	base = ia->ia_iobase;
+	if (bus_space_map(iot, base, LPT_NPORTS, 0, &ioh))
+		return 0;
+
+	rv = 0;
+	mask = 0xff;
+
+	data = 0x55;				/* Alternating zeros */
+	if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
+		ABORT;
+
+	data = 0xaa;				/* Alternating ones */
+	if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
+		ABORT;
+
+	for (i = 0; i < CHAR_BIT; i++) {	/* Walking zero */
+		data = ~(1 << i);
+		if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
+			ABORT;
+	}
+
+	for (i = 0; i < CHAR_BIT; i++) {	/* Walking one */
+		data = (1 << i);
+		if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
+			ABORT;
+	}
+
+	bus_space_write_1(iot, ioh, lpt_data, 0);
+	bus_space_write_1(iot, ioh, lpt_control, 0);
+
+	ia->ia_iosize = LPT_NPORTS;
+	ia->ia_msize = 0;
+
+	rv = 1;
+
+out:
+	bus_space_unmap(iot, ioh, LPT_NPORTS);
+	return rv;
+}
+
+void
+lpt_isa_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct lpt_softc *sc = (void *)self;
+	struct isa_attach_args *ia = aux;
+	bus_space_tag_t iot;
+	bus_space_handle_t ioh;
+
+	if (ia->ia_irq != IRQUNK)
+		printf("\n");
+	else
+		printf(": polled\n");
+
+	sc->sc_iobase = ia->ia_iobase;
+	sc->sc_irq = ia->ia_irq;
+	sc->sc_state = 0;
+
+	iot = sc->sc_iot = ia->ia_iot;
+	if (bus_space_map(iot, sc->sc_iobase, LPT_NPORTS, 0, &ioh))
+		panic("lpt_isa_attach: couldn't map I/O ports");
+	sc->sc_ioh = ioh;
+
+	bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
+
+	if (ia->ia_irq != IRQUNK)
+		sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
+		    IPL_TTY, lptintr, sc, sc->sc_dev.dv_xname);
+}
diff --git a/sys/dev/isa/uha_isa.c b/sys/dev/isa/uha_isa.c
new file mode 100644
index 00000000000..c1c723915c3
--- /dev/null
+++ b/sys/dev/isa/uha_isa.c
@@ -0,0 +1,368 @@
+/*	$OpenBSD: uha_isa.c,v 1.1 1996/11/29 23:51:14 niklas Exp $	*/
+/*	$NetBSD: uha_isa.c,v 1.5 1996/10/21 22:41:21 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1996 Charles M. Hannum.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Charles M. Hannum.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/proc.h>
+#include <sys/user.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+
+#include <dev/isa/isavar.h>
+#include <dev/isa/isadmavar.h>
+
+#include <dev/ic/uhareg.h>
+#include <dev/ic/uhavar.h>
+
+#define	UHA_ISA_IOSIZE	16
+
+int	uha_isa_probe __P((struct device *, void *, void *));
+void	uha_isa_attach __P((struct device *, struct device *, void *));
+
+struct cfattach uha_isa_ca = {
+	sizeof(struct uha_softc), uha_isa_probe, uha_isa_attach
+};
+
+#define KVTOPHYS(x)	vtophys(x)
+
+int u14_find __P((bus_space_tag_t, bus_space_handle_t, struct uha_softc *));
+void u14_start_mbox __P((struct uha_softc *, struct uha_mscp *));
+int u14_poll __P((struct uha_softc *, struct scsi_xfer *, int));
+int u14_intr __P((void *));
+void u14_init __P((struct uha_softc *));
+
+/*
+ * Check the slots looking for a board we recognise
+ * If we find one, note it's address (slot) and call
+ * the actual probe routine to check it out.
+ */
+int
+uha_isa_probe(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	struct isa_attach_args *ia = aux;
+	struct uha_softc sc;
+	bus_space_tag_t iot = ia->ia_iot;
+	bus_space_handle_t ioh;
+	int rv;
+
+	if (bus_space_map(iot, ia->ia_iobase, UHA_ISA_IOSIZE, 0, &ioh))
+		return (0);
+
+	rv = u14_find(iot, ioh, &sc);
+
+	bus_space_unmap(iot, ioh, UHA_ISA_IOSIZE);
+
+	if (rv) {
+		if (ia->ia_irq != -1 && ia->ia_irq != sc.sc_irq)
+			return (0);
+		if (ia->ia_drq != -1 && ia->ia_drq != sc.sc_drq)
+			return (0);
+		ia->ia_irq = sc.sc_irq;
+		ia->ia_drq = sc.sc_drq;
+		ia->ia_msize = 0;
+		ia->ia_iosize = UHA_ISA_IOSIZE;
+	}
+	return (rv);
+}
+
+/*
+ * Attach all the sub-devices we can find
+ */
+void
+uha_isa_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct isa_attach_args *ia = aux;
+	struct uha_softc *sc = (void *)self;
+	bus_space_tag_t iot = ia->ia_iot;
+	bus_space_handle_t ioh;
+	isa_chipset_tag_t ic = ia->ia_ic;
+
+	printf("\n");
+
+	if (bus_space_map(iot, ia->ia_iobase, UHA_ISA_IOSIZE, 0, &ioh))
+		panic("uha_attach: bus_space_map failed!");
+
+	sc->sc_iot = iot;
+	sc->sc_ioh = ioh;
+	if (!u14_find(iot, ioh, sc))
+		panic("uha_attach: u14_find failed!");
+
+	if (sc->sc_drq != -1)
+		isa_dmacascade(sc->sc_drq);
+
+	sc->sc_ih = isa_intr_establish(ic, sc->sc_irq, IST_EDGE, IPL_BIO,
+	    u14_intr, sc, sc->sc_dev.dv_xname);
+	if (sc->sc_ih == NULL) {
+		printf("%s: couldn't establish interrupt\n",
+		    sc->sc_dev.dv_xname);
+		return;
+	}
+
+	/* Save function pointers for later use. */
+	sc->start_mbox = u14_start_mbox;
+	sc->poll = u14_poll;
+	sc->init = u14_init;
+
+	uha_attach(sc);
+}
+
+/*
+ * Start the board, ready for normal operation
+ */
+int
+u14_find(iot, ioh, sc)
+	bus_space_tag_t iot;
+	bus_space_handle_t ioh;
+	struct uha_softc *sc;
+{
+	u_int16_t model, config;
+	int irq, drq;
+	int resetcount = 4000;	/* 4 secs? */
+
+	model = (bus_space_read_1(iot, ioh, U14_ID + 0) << 8) |
+		(bus_space_read_1(iot, ioh, U14_ID + 1) << 0);
+	if ((model & 0xfff0) != 0x5640)
+		return (0);
+
+	config = (bus_space_read_1(iot, ioh, U14_CONFIG + 0) << 8) |
+		 (bus_space_read_1(iot, ioh, U14_CONFIG + 1) << 0);
+
+	switch (model & 0x000f) {
+	case 0x0000:
+		switch (config & U14_DMA_MASK) {
+		case U14_DMA_CH5:
+			drq = 5;
+			break;
+		case U14_DMA_CH6:
+			drq = 6;
+			break;
+		case U14_DMA_CH7:
+			drq = 7;
+			break;
+		default:
+			printf("u14_find: illegal drq setting %x\n",
+			    config & U14_DMA_MASK);
+			return (0);
+		}
+		break;
+	case 0x0001:
+		/* This is a 34f, and doesn't need an ISA DMA channel. */
+		drq = -1;
+		break;
+	default:
+		printf("u14_find: unknown model %x\n", model);
+		return (0);
+	}
+
+	switch (config & U14_IRQ_MASK) {
+	case U14_IRQ10:
+		irq = 10;
+		break;
+	case U14_IRQ11:
+		irq = 11;
+		break;
+	case U14_IRQ14:
+		irq = 14;
+		break;
+	case U14_IRQ15:
+		irq = 15;
+		break;
+	default:
+		printf("u14_find: illegal irq setting %x\n",
+		    config & U14_IRQ_MASK);
+		return (0);
+	}
+
+	bus_space_write_1(iot, ioh, U14_LINT, UHA_ASRST);
+
+	while (--resetcount) {
+		if (bus_space_read_1(iot, ioh, U14_LINT))
+			break;
+		delay(1000);	/* 1 mSec per loop */
+	}
+	if (!resetcount) {
+		printf("u14_find: board timed out during reset\n");
+		return (0);
+	}
+
+	/* if we want to fill in softc, do so now */
+	if (sc != NULL) {
+		sc->sc_irq = irq;
+		sc->sc_drq = drq;
+		sc->sc_scsi_dev = config & U14_HOSTID_MASK;
+	}
+
+	return (1);
+}
+
+/*
+ * Function to send a command out through a mailbox
+ */
+void
+u14_start_mbox(sc, mscp)
+	struct uha_softc *sc;
+	struct uha_mscp *mscp;
+{
+	bus_space_tag_t iot = sc->sc_iot;
+	bus_space_handle_t ioh = sc->sc_ioh;
+	int spincount = 100000;	/* 1s should be enough */
+
+	while (--spincount) {
+		if ((bus_space_read_1(iot, ioh, U14_LINT) & U14_LDIP) == 0)
+			break;
+		delay(100);
+	}
+	if (!spincount) {
+		printf("%s: uha_start_mbox, board not responding\n",
+		    sc->sc_dev.dv_xname);
+		Debugger();
+	}
+
+	bus_space_write_4(iot, ioh, U14_OGMPTR, KVTOPHYS(mscp));
+	if (mscp->flags & MSCP_ABORT)
+		bus_space_write_1(iot, ioh, U14_LINT, U14_ABORT);
+	else
+		bus_space_write_1(iot, ioh, U14_LINT, U14_OGMFULL);
+
+	if ((mscp->xs->flags & SCSI_POLL) == 0)
+		timeout(uha_timeout, mscp, (mscp->timeout * hz) / 1000);
+}
+
+/*
+ * Function to poll for command completion when in poll mode.
+ *
+ *	wait = timeout in msec
+ */
+int
+u14_poll(sc, xs, count)
+	struct uha_softc *sc;
+	struct scsi_xfer *xs;
+	int count;
+{
+	bus_space_tag_t iot = sc->sc_iot;
+	bus_space_handle_t ioh = sc->sc_ioh;
+
+	while (count) {
+		/*
+		 * If we had interrupts enabled, would we
+		 * have got an interrupt?
+		 */
+		if (bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP)
+			u14_intr(sc);
+		if (xs->flags & ITSDONE)
+			return (0);
+		delay(1000);
+		count--;
+	}
+	return (1);
+}
+
+/*
+ * Catch an interrupt from the adaptor
+ */
+int
+u14_intr(arg)
+	void *arg;
+{
+	struct uha_softc *sc = arg;
+	bus_space_tag_t iot = sc->sc_iot;
+	bus_space_handle_t ioh = sc->sc_ioh;
+	struct uha_mscp *mscp;
+	u_char uhastat;
+	u_long mboxval;
+
+#ifdef	UHADEBUG
+	printf("%s: uhaintr ", sc->sc_dev.dv_xname);
+#endif /*UHADEBUG */
+
+	if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)
+		return (0);
+
+	for (;;) {
+		/*
+		 * First get all the information and then
+		 * acknowledge the interrupt
+		 */
+		uhastat = bus_space_read_1(iot, ioh, U14_SINT);
+		mboxval = bus_space_read_4(iot, ioh, U14_ICMPTR);
+		/* XXX Send an ABORT_ACK instead? */
+		bus_space_write_1(iot, ioh, U14_SINT, U14_ICM_ACK);
+
+#ifdef	UHADEBUG
+		printf("status = 0x%x ", uhastat);
+#endif /*UHADEBUG*/
+
+		/*
+		 * Process the completed operation
+		 */
+		mscp = uha_mscp_phys_kv(sc, mboxval);
+		if (!mscp) {
+			printf("%s: BAD MSCP RETURNED!\n",
+			    sc->sc_dev.dv_xname);
+			continue;	/* whatever it was, it'll timeout */
+		}
+
+		untimeout(uha_timeout, mscp);
+		uha_done(sc, mscp);
+
+		if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)
+			return (1);
+	}
+}
+
+void
+u14_init(sc)
+	struct uha_softc *sc;
+{
+	bus_space_tag_t iot = sc->sc_iot;
+	bus_space_handle_t ioh = sc->sc_ioh;
+
+	/* make sure interrupts are enabled */
+#ifdef UHADEBUG
+	printf("u14_init: lmask=%02x, smask=%02x\n",
+	    bus_space_read_1(iot, ioh, U14_LMASK),
+	    bus_space_read_1(iot, ioh, U14_SMASK));
+#endif
+	bus_space_write_1(iot, ioh, U14_LMASK, 0xd1);	/* XXX */
+	bus_space_write_1(iot, ioh, U14_SMASK, 0x91);	/* XXX */
+}
diff --git a/sys/dev/isa/ultra14f.c b/sys/dev/isa/ultra14f.c
deleted file mode 100644
index 3b8a340243d..00000000000
--- a/sys/dev/isa/ultra14f.c
+++ /dev/null
@@ -1,1401 +0,0 @@
-/*	$OpenBSD: ultra14f.c,v 1.16 1996/11/23 21:46:47 kstailey Exp $	*/
-/*	$NetBSD: ultra14f.c,v 1.66 1996/05/12 23:53:54 mycroft Exp $	*/
-
-/*
- * Copyright (c) 1994 Charles Hannum.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by Charles Hannum.
- * 4. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * Ported for use with the UltraStor 14f by Gary Close (gclose@wvnvms.wvnet.edu)
- * Slight fixes to timeouts to run with the 34F
- * Thanks to Julian Elischer for advice and help with this port.
- *
- * Originally written by Julian Elischer (julian@tfs.com)
- * for TRW Financial Systems for use under the MACH(2.5) operating system.
- *
- * TRW Financial Systems, in accordance with their agreement with Carnegie
- * Mellon University, makes this software available to CMU to distribute
- * or use in any manner that they see fit as long as this message is kept with
- * the software. For this reason TFS also grants any other persons or
- * organisations permission to use or modify this software.
- *
- * TFS supplies this software to be publicly redistributed
- * on the understanding that TFS is not responsible for the correct
- * functioning of this software in any circumstances.
- *
- * commenced: Sun Sep 27 18:14:01 PDT 1992
- * slight mod to make work with 34F as well: Wed Jun  2 18:05:48 WST 1993
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/errno.h>
-#include <sys/ioctl.h>
-#include <sys/device.h>
-#include <sys/malloc.h>
-#include <sys/buf.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-
-#include <machine/intr.h>
-#include <machine/pio.h>
-
-#include <dev/isa/isavar.h>
-#include <dev/isa/isadmavar.h>
-
-#include <scsi/scsi_all.h>
-#include <scsi/scsiconf.h>
-
-#ifndef	DDB
-#define Debugger() panic("should call debugger here (ultra14f.c)")
-#endif /* ! DDB */
-
-typedef u_long physaddr;
-typedef u_long physlen;
-
-#define KVTOPHYS(x)	vtophys(x)
-
-#define UHA_MSCP_MAX	32	/* store up to 32 MSCPs at one time */
-#define	MSCP_HASH_SIZE	32	/* hash table size for phystokv */
-#define	MSCP_HASH_SHIFT	9
-#define MSCP_HASH(x)	((((long)(x))>>MSCP_HASH_SHIFT) & (MSCP_HASH_SIZE - 1))
-
-#define UHA_NSEG	33	/* number of dma segments supported */
-
-/************************** board definitions *******************************/
-/*
- * I/O Port Interface
- */
-#define U14_LMASK		0x0000	/* local doorbell mask reg */
-#define U14_LINT		0x0001	/* local doorbell int/stat reg */
-#define U14_SMASK		0x0002	/* system doorbell mask reg */
-#define U14_SINT		0x0003	/* system doorbell int/stat reg */
-#define U14_ID			0x0004	/* product id reg (2 ports) */
-#define U14_CONFIG		0x0006	/* config reg (2 ports) */
-#define U14_OGMPTR		0x0008	/* outgoing mail ptr (4 ports) */
-#define U14_ICMPTR		0x000c	/* incoming mail ptr (4 ports) */
-
-#define	U24_CONFIG		0x0c85	/* config reg (3 ports) */
-#define	U24_LMASK		0x0c8c	/* local doorbell mask reg */
-#define	U24_LINT		0x0c8d	/* local doorbell int/stat reg */
-#define	U24_SMASK		0x0c8e	/* system doorbell mask reg */
-#define	U24_SINT		0x0c8f	/* system doorbell int/stat reg */
-#define	U24_OGMCMD		0x0c96	/* outgoing commands */
-#define	U24_OGMPTR		0x0c97	/* outgoing mail ptr (4 ports) */
-#define	U24_ICMCMD		0x0c9b	/* incoming commands */
-#define	U24_ICMPTR		0x0c9c	/* incoming mail ptr (4 ports) */
-
-/*
- * UHA_LMASK bits (read only)
- */
-#define UHA_LDIE		0x80	/* local doorbell int enabled */
-#define UHA_SRSTE		0x40	/* soft reset enabled */
-#define UHA_ABORTEN		0x10	/* abort MSCP enabled */
-#define UHA_OGMINTEN		0x01	/* outgoing mail interrupt enabled */
-
-/*
- * UHA_LINT bits (write only)
- */
-#define U14_LDIP		0x80	/* local doorbell int pending */
-#define	U24_LDIP		0x02	/* local doorbell int pending */
-
-#define U14_OGMFULL		0x01	/* outgoing mailbox is full */
-#define	U24_OGMFULL		0x02	/* outgoing mailbox is full */
-
-#define UHA_ABORT		0x10	/* abort MSCP */
-#define	UHA_SBRST		0x40	/* scsi bus reset */
-#define	UHA_ADRST		0x80	/* adapter soft reset */
-#define	UHA_ASRST		0xc0	/* adapter and scsi reset */
-
-/*
- * UHA_SMASK bits (read/write)
- */
-#define UHA_ENSINT		0x80	/* enable system doorbell interrupt */
-#define UHA_EN_ABORT_COMPLETE   0x10	/* enable abort MSCP complete int */
-#define UHA_ENICM		0x01	/* enable ICM interrupt */
-
-/*
- * UHA_SINT bits (read)
- */
-#define U14_SDIP		0x80	/* system doorbell int pending */
-#define	U24_SDIP		0x02	/* system doorbell int pending */
-
-#define UHA_ABORT_SUCC		0x10	/* abort MSCP successful */
-#define UHA_ABORT_FAIL		0x18	/* abort MSCP failed */
-
-/*
- * UHA_SINT bits (write)
- */
-#define U14_ICM_ACK		0x01	/* acknowledge ICM and clear */
-#define	U24_ICM_ACK		0x02	/* acknowledge ICM and clear */
-
-#define	UHA_ABORT_ACK		0x18	/* acknowledge status and clear */
-
-/*
- * U14_CONFIG bits (read only)
- */
-#define U14_DMA_CH5		0x0000	/* DMA channel 5 */
-#define U14_DMA_CH6		0x4000	/* 6 */
-#define U14_DMA_CH7		0x8000	/* 7 */
-#define	U14_DMA_MASK		0xc000
-#define U14_IRQ15		0x0000	/* IRQ 15 */
-#define U14_IRQ14		0x1000	/* 14 */
-#define U14_IRQ11		0x2000	/* 11 */
-#define U14_IRQ10		0x3000	/* 10 */
-#define	U14_IRQ_MASK		0x3000
-#define	U14_HOSTID_MASK		0x0007
-
-/*
- * U24_CONFIG bits (read only)
- */
-#define	U24_MAGIC1		0x08
-#define	U24_IRQ15		0x10
-#define	U24_IRQ14		0x20
-#define	U24_IRQ11		0x40
-#define	U24_IRQ10		0x80
-#define	U24_IRQ_MASK		0xf0
-
-#define	U24_MAGIC2		0x04
-
-#define	U24_HOSTID_MASK		0x07
-
-/*
- * EISA registers (offset from slot base)
- */
-#define	EISA_VENDOR		0x0c80	/* vendor ID (2 ports) */
-#define	EISA_MODEL		0x0c82	/* model number (2 ports) */
-#define	EISA_CONTROL		0x0c84
-#define	 EISA_RESET		0x04
-#define	 EISA_ERROR		0x02
-#define	 EISA_ENABLE		0x01
-
-/*
- * host_stat error codes
- */
-#define UHA_NO_ERR		0x00	/* No error supposedly */
-#define UHA_SBUS_ABORT_ERR	0x84	/* scsi bus abort error */
-#define UHA_SBUS_TIMEOUT	0x91	/* scsi bus selection timeout */
-#define UHA_SBUS_OVER_UNDER	0x92	/* scsi bus over/underrun */
-#define UHA_BAD_SCSI_CMD	0x96	/* illegal scsi command */
-#define UHA_AUTO_SENSE_ERR	0x9b	/* auto request sense err */
-#define UHA_SBUS_RES_ERR	0xa3	/* scsi bus reset error */
-#define UHA_BAD_SG_LIST		0xff	/* invalid scatter gath list */
-
-struct uha_dma_seg {
-	physaddr seg_addr;
-	physlen seg_len;
-};
-
-#pragma pack(1)
-struct uha_mscp {
-	u_char opcode:3;
-#define UHA_HAC		0x01	/* host adapter command */
-#define UHA_TSP		0x02	/* target scsi pass through command */
-#define UHA_SDR		0x04	/* scsi device reset */
-	u_char xdir:2;		/* xfer direction */
-#define UHA_SDET	0x00	/* determined by scsi command */
-#define UHA_SDIN	0x01	/* scsi data in */
-#define UHA_SDOUT	0x02	/* scsi data out */
-#define UHA_NODATA	0x03	/* no data xfer */
-	u_char dcn:1;		/* disable disconnect for this command */
-	u_char ca:1;		/* cache control */
-	u_char sgth:1;		/* scatter gather flag */
-	u_char target:3;
-	u_char chan:2;		/* scsi channel (always 0 for 14f) */
-	u_char lun:3;
-	physaddr data_addr;
-	physlen data_length;
-	physaddr link_addr;
-	u_char link_id;
-	u_char sg_num;		/* number of scat gath segs */
-	/*in s-g list if sg flag is */
-	/*set. starts at 1, 8bytes per */
-	u_char req_sense_length;
-	u_char scsi_cmd_length;
-	struct scsi_generic scsi_cmd;
-	u_char host_stat;
-	u_char target_stat;
-	physaddr sense_ptr;	/* if 0 no auto sense */
-	/*-----------------end of hardware supported fields----------------*/
-	TAILQ_ENTRY(uha_mscp) chain;
-	struct uha_mscp *nexthash;
-	long hashkey;
-	struct scsi_xfer *xs;	/* the scsi_xfer for this cmd */
-	int flags;
-#define MSCP_FREE	0
-#define MSCP_ACTIVE	1
-#define MSCP_ABORTED	2
-	struct uha_dma_seg uha_dma[UHA_NSEG];
-	struct scsi_sense_data mscp_sense;
-};
-#pragma pack(4)
-
-struct uha_softc {
-	struct device sc_dev;
-	struct isadev sc_id;
-	void *sc_ih;
-
-	int sc_iobase;
-	int sc_irq, sc_drq;
-
-	void (*send_mbox) __P((struct uha_softc *, struct uha_mscp *));
-	int (*abort) __P((struct uha_softc *, struct uha_mscp *));
-	int (*poll) __P((struct uha_softc *, struct scsi_xfer *, int));
-	int (*intr) __P((void *));
-	void (*init) __P((struct uha_softc *));
-
-	struct uha_mscp *mscphash[MSCP_HASH_SIZE];
-	TAILQ_HEAD(, uha_mscp) free_mscp;
-	int nummscps;
-	int uha_scsi_dev;		/* our scsi id */
-	struct scsi_link sc_link;
-};
-
-void u14_start_mbox __P((struct uha_softc *, int, struct uha_mscp *));
-void u14_send_mbox __P((struct uha_softc *, struct uha_mscp *));
-void u24_start_mbox __P((struct uha_softc *, int, struct uha_mscp *));
-void u24_send_mbox __P((struct uha_softc *, struct uha_mscp *));
-int u14_abort __P((struct uha_softc *, struct uha_mscp *));
-int u24_abort __P((struct uha_softc *, struct uha_mscp *));
-int u14_poll __P((struct uha_softc *, struct scsi_xfer *, int));
-int u24_poll __P((struct uha_softc *, struct scsi_xfer *, int));
-int u14intr __P((void *));
-int u24intr __P((void *));
-void uha_done __P((struct uha_softc *, struct uha_mscp *));
-void uha_free_mscp __P((struct uha_softc *, struct uha_mscp *, int flags));
-struct uha_mscp *uha_get_mscp __P((struct uha_softc *, int));
-struct uha_mscp *uha_mscp_phys_kv __P((struct uha_softc *, u_long));
-int u14_find __P((struct uha_softc *, struct isa_attach_args *));
-int u24_find __P((struct uha_softc *, struct isa_attach_args *));
-void u14_init __P((struct uha_softc *));
-void u24_init __P((struct uha_softc *));
-void uhaminphys __P((struct buf *));
-int uha_scsi_cmd __P((struct scsi_xfer *));
-void uha_timeout __P((void *arg));
-#ifdef UHADEBUG
-void uha_print_mscp __P((struct uha_mscp *));
-void uha_print_active_mscp __P((struct uha_softc *));
-#endif
-static __inline void uha_init_mscp __P((struct uha_softc *, struct uha_mscp *));
-static __inline void uha_reset_mscp __P((struct uha_softc *, 
-    struct uha_mscp *));
-
-u_long	scratch;
-#define UHA_SHOWMSCPS 0x01
-#define UHA_SHOWINTS 0x02
-#define UHA_SHOWCMDS 0x04
-#define UHA_SHOWMISC 0x08
-
-struct scsi_adapter uha_switch = {
-	uha_scsi_cmd,
-	uhaminphys,
-	0,
-	0,
-};
-
-/* the below structure is so we have a default dev struct for out link struct */
-struct scsi_device uha_dev = {
-	NULL,			/* Use default error handler */
-	NULL,			/* have a queue, served by this */
-	NULL,			/* have no async handler */
-	NULL,			/* Use default 'done' routine */
-};
-
-int	uhaprobe __P((struct device *, void *, void *));
-void	uhaattach __P((struct device *, struct device *, void *));
-int	uhaprint __P((void *, const char *));
-
-struct cfattach uha_ca = {
-	sizeof(struct uha_softc), uhaprobe, uhaattach
-};
-
-struct cfdriver uha_cd = {
-	NULL, "uha", DV_DULL
-};
-
-/*
- * Function to send a command out through a mailbox
- */
-void
-u14_start_mbox(uha, opcode, mscp)
-	struct uha_softc *uha;
-	int opcode;
-	struct uha_mscp *mscp;
-{
-	int iobase = uha->sc_iobase;
-	int spincount = 100000;	/* 1s should be enough */
-
-	while (--spincount) {
-		if ((inb(iobase + U14_LINT) & U14_LDIP) == 0)
-			break;
-		delay(100);
-	}
-	if (!spincount) {
-		printf("%s: uha_send_mbox, board not responding\n",
-		    uha->sc_dev.dv_xname);
-		Debugger();
-	}
-
-	outl(iobase + U14_OGMPTR, KVTOPHYS(mscp));
-	outb(iobase + U14_LINT, opcode);
-}
-
-void
-u14_send_mbox(uha, mscp)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-{
-
-	u14_start_mbox(uha, U14_OGMFULL, mscp);
-}
-
-void
-u24_start_mbox(uha, opcode, mscp)
-	struct uha_softc *uha;
-	int opcode;
-	struct uha_mscp *mscp;
-{
-	int iobase = uha->sc_iobase;
-	int spincount = 100000;	/* 1s should be enough */
-
-	while (--spincount) {
-		if ((inb(iobase + U24_LINT) & U24_LDIP) == 0)
-			break;
-		delay(100);
-	}
-	if (!spincount) {
-		printf("%s: uha_send_mbox, board not responding\n",
-		    uha->sc_dev.dv_xname);
-		Debugger();
-	}
-
-	outl(iobase + U24_OGMPTR, KVTOPHYS(mscp));
-	outb(iobase + U24_OGMCMD, 1);
-	outb(iobase + U24_LINT, opcode);
-}
-
-void
-u24_send_mbox(uha, mscp)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-{
-
-	u24_start_mbox(uha, U24_OGMFULL, mscp);
-}
-
-/*
- * Function to send abort
- */
-int
-u14_abort(uha, mscp)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-{
-	int iobase = uha->sc_iobase;
-	int abortcount = 200000;	/* 2 secs */
-	int s = splbio();
-
-	u14_start_mbox(uha, UHA_ABORT, mscp);
-
-	while (--abortcount) {
-		if (inb(iobase + U14_SINT) & UHA_ABORT_FAIL)
-			break;
-		delay(10);
-	}
-	if (!abortcount) {
-		printf("%s: u14_abort, board not responding\n",
-		    uha->sc_dev.dv_xname);
-		Debugger();
-	}
-
-	if ((inb(iobase + U14_SINT) & (UHA_ABORT_FAIL | UHA_ABORT_SUCC)) ==
-	    UHA_ABORT_SUCC) {
-		outb(iobase + U14_SINT, UHA_ABORT_ACK);
-		splx(s);
-		return 1;
-	} else {
-		outb(iobase + U14_SINT, UHA_ABORT_ACK);
-		splx(s);
-		return 0;
-	}
-}
-
-int
-u24_abort(uha, mscp)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-{
-	int iobase = uha->sc_iobase;
-	int abortcount = 200000;	/* 2 secs */
-	int s = splbio();
-
-	u24_start_mbox(uha, UHA_ABORT, mscp);
-
-	while (--abortcount) {
-		if (inb(iobase + U24_SINT) & UHA_ABORT_FAIL)
-			break;
-		delay(10);
-	}
-	if (!abortcount) {
-		printf("%s: u24_abort, board not responding\n",
-		    uha->sc_dev.dv_xname);
-		Debugger();
-	}
-
-	if ((inb(iobase + U24_SINT) & (UHA_ABORT_FAIL | UHA_ABORT_SUCC)) ==
-	    UHA_ABORT_SUCC) {
-		outb(iobase + U24_SINT, UHA_ABORT_ACK);
-		splx(s);
-		return 1;
-	} else {
-		outb(iobase + U24_SINT, UHA_ABORT_ACK);
-		splx(s);
-		return 0;
-	}
-}
-
-/*
- * Function to poll for command completion when in poll mode.
- *
- *	wait = timeout in msec
- */
-int
-u14_poll(uha, xs, count)
-	struct uha_softc *uha;
-	struct scsi_xfer *xs;
-	int count;
-{
-	int iobase = uha->sc_iobase;
-
-	while (count) {
-		/*
-		 * If we had interrupts enabled, would we
-		 * have got an interrupt?
-		 */
-		if (inb(iobase + U14_SINT) & U14_SDIP)
-			u14intr(uha);
-		if (xs->flags & ITSDONE)
-			return 0;
-		delay(1000);
-		count--;
-	}
-	return 1;
-}
-
-int
-u24_poll(uha, xs, count)
-	struct uha_softc *uha;
-	struct scsi_xfer *xs;
-	int count;
-{
-	int iobase = uha->sc_iobase;
-
-	while (count) {
-		/*
-		 * If we had interrupts enabled, would we
-		 * have got an interrupt?
-		 */
-		if (inb(iobase + U24_SINT) & U24_SDIP)
-			u24intr(uha);
-		if (xs->flags & ITSDONE)
-			return 0;
-		delay(1000);
-		count--;
-	}
-	return 1;
-}
-
-/*
- * Check if the device can be found at the port given and if so, set it up
- * ready for further work as an argument, takes the isa_device structure
- * from autoconf.c
- */
-int
-uhaprobe(parent, match, aux)
-	struct device *parent;
-	void *match, *aux;
-{
-	struct uha_softc *uha = match;
-	struct isa_attach_args *ia = aux;
-
-	/*
-	 * Try initialise a unit at this location
-	 * sets up dma and bus speed, loads uha->sc_irq
-	 */
-	if (u24_find(uha, ia) != 0 && u14_find(uha, ia) != 0)
-		return 0;
-
-	if (ia->ia_irq != IRQUNK) {
-		if (ia->ia_irq != uha->sc_irq) {
-			printf("%s: irq mismatch; kernel configured %d != board configured %d\n",
-			    uha->sc_dev.dv_xname, ia->ia_irq, uha->sc_irq);
-			return 0;
-		}
-	} else
-		ia->ia_irq = uha->sc_irq;
-
-	if (ia->ia_drq != DRQUNK) {
-		if (ia->ia_drq != uha->sc_drq) {
-			printf("%s: drq mismatch; kernel configured %d != board configured %d\n",
-			    uha->sc_dev.dv_xname, ia->ia_drq, uha->sc_drq);
-			return 0;
-		}
-	} else
-		ia->ia_drq = uha->sc_drq;
-
-	ia->ia_msize = 0;
-	ia->ia_iosize = 16;
-	return 1;
-}
-
-int
-uhaprint(aux, name)
-	void *aux;
-	const char *name;
-{
-	if (name != NULL)       
-		printf("%s: scsibus ", name);
-	return UNCONF;
-}
-
-/*
- * Attach all the sub-devices we can find
- */
-void
-uhaattach(parent, self, aux)
-	struct device *parent, *self;
-	void *aux;
-{
-	struct isa_attach_args *ia = aux;
-	struct uha_softc *uha = (void *)self;
-
-	if (ia->ia_drq != DRQUNK)
-		isa_dmacascade(ia->ia_drq);
-
-	(uha->init)(uha);
-	TAILQ_INIT(&uha->free_mscp);
-
-	/*
-	 * fill in the prototype scsi_link.
-	 */
-	uha->sc_link.adapter_softc = uha;
-	uha->sc_link.adapter_target = uha->uha_scsi_dev;
-	uha->sc_link.adapter = &uha_switch;
-	uha->sc_link.device = &uha_dev;
-	uha->sc_link.openings = 2;
-
-	printf("\n");
-
-#ifdef NEWCONFIG
-	isa_establish(&uha->sc_id, &uha->sc_dev);
-#endif
-	uha->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
-	    IPL_BIO, uha->intr, uha, uha->sc_dev.dv_xname);
-
-	/*
-	 * ask the adapter what subunits are present
-	 */
-	config_found(self, &uha->sc_link, uhaprint);
-}
-
-/*
- * Catch an interrupt from the adaptor
- */
-int
-u14intr(arg)
-	void *arg;
-{
-	struct uha_softc *uha = arg;
-	struct uha_mscp *mscp;
-	u_char uhastat;
-	u_long mboxval;
-	int iobase = uha->sc_iobase;
-
-#ifdef	UHADEBUG
-	printf("%s: uhaintr ", uha->sc_dev.dv_xname);
-#endif /*UHADEBUG */
-
-	if ((inb(iobase + U14_SINT) & U14_SDIP) == 0)
-		return 0;
-
-	for (;;) {
-		/*
-		 * First get all the information and then
-		 * acknowledge the interrupt
-		 */
-		uhastat = inb(iobase + U14_SINT);
-		mboxval = inl(iobase + U14_ICMPTR);
-		outb(iobase + U14_SINT, U14_ICM_ACK);
-
-#ifdef	UHADEBUG
-		printf("status = 0x%x ", uhastat);
-#endif /*UHADEBUG*/
-
-		/*
-		 * Process the completed operation
-		 */
-		mscp = uha_mscp_phys_kv(uha, mboxval);
-		if (!mscp) {
-			printf("%s: BAD MSCP RETURNED!\n",
-			    uha->sc_dev.dv_xname);
-			continue;	/* whatever it was, it'll timeout */
-		}
-		untimeout(uha_timeout, mscp);
-		uha_done(uha, mscp);
-
-		if ((inb(iobase + U14_SINT) & U14_SDIP) == 0)
-			return 1;
-	}
-}
-
-int
-u24intr(arg)
-	void *arg;
-{
-	struct uha_softc *uha = arg;
-	struct uha_mscp *mscp;
-	u_char uhastat;
-	u_long mboxval;
-	int iobase = uha->sc_iobase;
-
-#ifdef	UHADEBUG
-	printf("%s: uhaintr ", uha->sc_dev.dv_xname);
-#endif /*UHADEBUG */
-
-	if ((inb(iobase + U24_SINT) & U24_SDIP) == 0)
-		return 0;
-
-	for (;;) {
-		/*
-		 * First get all the information and then
-		 * acknowledge the interrupt
-		 */
-		uhastat = inb(iobase + U24_SINT);
-		mboxval = inl(iobase + U24_ICMPTR);
-		outb(iobase + U24_SINT, U24_ICM_ACK);
-		outb(iobase + U24_ICMCMD, 0);
-
-#ifdef	UHADEBUG
-		printf("status = 0x%x ", uhastat);
-#endif /*UHADEBUG*/
-
-		/*
-		 * Process the completed operation
-		 */
-		mscp = uha_mscp_phys_kv(uha, mboxval);
-		if (!mscp) {
-			printf("%s: BAD MSCP RETURNED!\n",
-			    uha->sc_dev.dv_xname);
-			continue;	/* whatever it was, it'll timeout */
-		}
-		untimeout(uha_timeout, mscp);
-		uha_done(uha, mscp);
-
-		if ((inb(iobase + U24_SINT) & U24_SDIP) == 0)
-			return 1;
-	}
-}
-
-/*
- * We have a mscp which has been processed by the adaptor, now we look to see
- * how the operation went.
- */
-void
-uha_done(uha, mscp)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-{
-	struct scsi_sense_data *s1, *s2;
-	struct scsi_xfer *xs = mscp->xs;
-
-	SC_DEBUG(xs->sc_link, SDEV_DB2, ("uha_done\n"));
-	/*
-	 * Otherwise, put the results of the operation
-	 * into the xfer and call whoever started it
-	 */
-	if ((xs->flags & INUSE) == 0) {
-		printf("%s: exiting but not in use!\n", uha->sc_dev.dv_xname);
-		Debugger();
-	}
-	if (xs->error == XS_NOERROR) {
-		if (mscp->host_stat != UHA_NO_ERR) {
-			switch (mscp->host_stat) {
-			case UHA_SBUS_TIMEOUT:		/* No response */
-				xs->error = XS_SELTIMEOUT;
-				break;
-			case UHA_SBUS_OVER_UNDER:
-				SC_DEBUG(xs->sc_link, SDEV_DB3,
-					("scsi bus xfer over/underrun\n"));
-				xs->error = XS_DRIVER_STUFFUP;
-				break;
-			case UHA_BAD_SG_LIST:
-				SC_DEBUG(xs->sc_link, SDEV_DB3,
-					("bad sg list reported back\n"));
-				xs->error = XS_DRIVER_STUFFUP;
-				break;
-			default:	/* Other scsi protocol messes */
-				printf("%s: host_stat %x\n",
-				    uha->sc_dev.dv_xname, mscp->host_stat);
-				xs->error = XS_DRIVER_STUFFUP;
-			}
-		} else if (mscp->target_stat != SCSI_OK) {
-			switch (mscp->target_stat) {
-			case SCSI_CHECK:
-				s1 = &mscp->mscp_sense;
-				s2 = &xs->sense;
-				*s2 = *s1;
-				xs->error = XS_SENSE;
-				break;
-			case SCSI_BUSY:
-				xs->error = XS_BUSY;
-				break;
-			default:
-				printf("%s: target_stat %x\n",
-				    uha->sc_dev.dv_xname, mscp->target_stat);
-				xs->error = XS_DRIVER_STUFFUP;
-			}
-		} else
-			xs->resid = 0;
-	}
-	xs->flags |= ITSDONE;
-	uha_free_mscp(uha, mscp, xs->flags);
-	scsi_done(xs);
-}
-
-/*
- * A mscp (and hence a mbx-out) is put onto the free list.
- */
-void
-uha_free_mscp(uha, mscp, flags)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-	int flags;
-{
-	int s;
-
-	s = splbio();
-
-	mscp->flags = MSCP_FREE;
-	TAILQ_INSERT_HEAD(&uha->free_mscp, mscp, chain);
-
-	/*
-	 * If there were none, wake anybody waiting for one to come free,
-	 * starting with queued entries.
-	 */
-	if (mscp->chain.tqe_next == 0)
-		wakeup(&uha->free_mscp);
-
-	splx(s);
-}
-
-static __inline void
-uha_init_mscp(uha, mscp)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-{
-	int hashnum;
-
-	bzero(mscp, sizeof(struct uha_mscp));
-	/*
-	 * put in the phystokv hash table
-	 * Never gets taken out.
-	 */
-	mscp->hashkey = KVTOPHYS(mscp);
-	hashnum = MSCP_HASH(mscp->hashkey);
-	mscp->nexthash = uha->mscphash[hashnum];
-	uha->mscphash[hashnum] = mscp;
-}
-
-static __inline void
-uha_reset_mscp(uha, mscp)
-	struct uha_softc *uha;
-	struct uha_mscp *mscp;
-{
-
-}
-
-/*
- * Get a free mscp
- *
- * If there are none, see if we can allocate a new one.  If so, put it in the
- * hash table too otherwise either return an error or sleep.
- */
-struct uha_mscp *
-uha_get_mscp(uha, flags)
-	struct uha_softc *uha;
-	int flags;
-{
-	struct uha_mscp *mscp;
-	int s;
-
-	s = splbio();
-
-	/*
-	 * If we can and have to, sleep waiting for one to come free
-	 * but only if we can't allocate a new one
-	 */
-	for (;;) {
-		mscp = uha->free_mscp.tqh_first;
-		if (mscp) {
-			TAILQ_REMOVE(&uha->free_mscp, mscp, chain);
-			break;
-		}
-		if (uha->nummscps < UHA_MSCP_MAX) {
-			mscp = (struct uha_mscp *)
-			    malloc(sizeof(struct uha_mscp),
-			    M_TEMP, M_NOWAIT);
-			if (mscp) {
-				uha_init_mscp(uha, mscp);
-				uha->nummscps++;
-			} else {
-				printf("%s: can't malloc mscp\n",
-				    uha->sc_dev.dv_xname);
-				goto out;
-			}
-			break;
-		}
-		if ((flags & SCSI_NOSLEEP) != 0)
-			goto out;
-		tsleep(&uha->free_mscp, PRIBIO, "uhamsc", 0);
-	}
-
-	uha_reset_mscp(uha, mscp);
-	mscp->flags = MSCP_ACTIVE;
-
-out:
-	splx(s);
-	return mscp;
-}
-
-/*
- * given a physical address, find the mscp that it corresponds to.
- */
-struct uha_mscp *
-uha_mscp_phys_kv(uha, mscp_phys)
-	struct uha_softc *uha;
-	u_long mscp_phys;
-{
-	int hashnum = MSCP_HASH(mscp_phys);
-	struct uha_mscp *mscp = uha->mscphash[hashnum];
-
-	while (mscp) {
-		if (mscp->hashkey == mscp_phys)
-			break;
-		mscp = mscp->nexthash;
-	}
-	return mscp;
-}
-
-/*
- * Start the board, ready for normal operation
- */
-int
-u14_find(uha, ia)
-	struct uha_softc *uha;
-	struct isa_attach_args *ia;
-{
-	int iobase = ia->ia_iobase;
-	u_short model, config;
-	int resetcount = 4000;	/* 4 secs? */
-
-	if (ia->ia_iobase == IOBASEUNK)
-		return ENXIO;
-
-	model = (inb(iobase + U14_ID) << 8) | inb(iobase + U14_ID + 1);
-	if ((model & 0xfff0) != 0x5640)
-		return ENXIO;
-
-	config = (inb(iobase + U14_CONFIG) << 8) | inb(iobase + U14_CONFIG + 1);
-
-	switch (model & 0x000f) {
-	case 0x0001:
-		/* This is a 34f, and doesn't need an ISA DMA channel. */
-		uha->sc_drq = DRQUNK;
-		break;
-	default:
-		switch (config & U14_DMA_MASK) {
-		case U14_DMA_CH5:
-			uha->sc_drq = 5;
-			break;
-		case U14_DMA_CH6:
-			uha->sc_drq = 6;
-			break;
-		case U14_DMA_CH7:
-			uha->sc_drq = 7;
-			break;
-		default:
-			printf("%s: illegal drq setting %x\n",
-			    uha->sc_dev.dv_xname, config & U14_DMA_MASK);
-			return EIO;
-		}
-		break;
-	}
-
-	switch (config & U14_IRQ_MASK) {
-	case U14_IRQ10:
-		uha->sc_irq = 10;
-		break;
-	case U14_IRQ11:
-		uha->sc_irq = 11;
-		break;
-	case U14_IRQ14:
-		uha->sc_irq = 14;
-		break;
-	case U14_IRQ15:
-		uha->sc_irq = 15;
-		break;
-	default:
-		printf("%s: illegal irq setting %x\n", uha->sc_dev.dv_xname,
-		    config & U14_IRQ_MASK);
-		return EIO;
-	}
-
-	/* who are we on the scsi bus */
-	uha->uha_scsi_dev = config & U14_HOSTID_MASK;
-
-	outb(iobase + U14_LINT, UHA_ASRST);
-
-	while (--resetcount) {
-		if (inb(iobase + U14_LINT))
-			break;
-		delay(1000);	/* 1 mSec per loop */
-	}
-	if (!resetcount) {
-		printf("%s: board timed out during reset\n",
-		    uha->sc_dev.dv_xname);
-		return ENXIO;
-	}
-
-	/* Save function pointers for later use. */
-	uha->send_mbox = u14_send_mbox;
-	uha->abort = u14_abort;
-	uha->poll = u14_poll;
-	uha->intr = u14intr;
-	uha->init = u14_init;
-
-	uha->sc_iobase = iobase;
-	return 0;
-}
-
-int
-u24_find(uha, ia)
-	struct uha_softc *uha;
-	struct isa_attach_args *ia;
-{
-	static int uha_slot = 0;
-	int iobase;
-	u_short vendor, model;
-	u_char config0, config1, config2;
-	u_char irq_ch, uha_id;
-	int resetcount = 4000;	/* 4 secs? */
-
-	if (ia->ia_iobase != IOBASEUNK)
-		return ENXIO;
-
-	while (uha_slot < 15) {
-		uha_slot++;
-		iobase = 0x1000 * uha_slot;
-
-		vendor = htons(inw(iobase + EISA_VENDOR));
-		if (vendor != 0x5663)	/* `USC' */
-			continue;
-
-		model = htons(inw(iobase + EISA_MODEL));
-		if ((model & 0xfff0) != 0x0240) {
-#ifndef trusted
-			printf("u24_find: ignoring model %04x\n", model);
-#endif
-			continue;
-		}
-
-#if 0
-		outb(iobase + EISA_CONTROL, EISA_ENABLE | EISA_RESET);
-		delay(10);
-		outb(iobase + EISA_CONTROL, EISA_ENABLE);
-		/* Wait for reset? */
-		delay(1000);
-#endif
-
-		config0 = inb(iobase + U24_CONFIG);
-		config1 = inb(iobase + U24_CONFIG + 1);
-		config2 = inb(iobase + U24_CONFIG + 2);
-		if ((config0 & U24_MAGIC1) == 0 ||
-		    (config1 & U24_MAGIC2) == 0)
-			continue;
-
-		irq_ch = config0 & U24_IRQ_MASK;
-		uha_id = config2 & U24_HOSTID_MASK;
-
-		uha->sc_drq = DRQUNK;
-
-		switch (irq_ch) {
-		case U24_IRQ10:
-			uha->sc_irq = 10;
-			break;
-		case U24_IRQ11:
-			uha->sc_irq = 11;
-			break;
-		case U24_IRQ14:
-			uha->sc_irq = 14;
-			break;
-		case U24_IRQ15:
-			uha->sc_irq = 15;
-			break;
-		default:
-			printf("%s: illegal irq setting %x\n",
-			    uha->sc_dev.dv_xname, irq_ch);
-			continue;
-		}
-
-		/* who are we on the scsi bus */
-		uha->uha_scsi_dev = uha_id;
-
-		outb(iobase + U24_LINT, UHA_ASRST);
-
-		while (--resetcount) {
-			if (inb(iobase + U24_LINT))
-				break;
-			delay(1000);	/* 1 mSec per loop */
-		}
-		if (!resetcount) {
-			printf("%s: board timed out during reset\n",
-			    uha->sc_dev.dv_xname);
-			continue;
-		}
-
-		/* Save function pointers for later use. */
-		uha->send_mbox = u24_send_mbox;
-		uha->abort = u24_abort;
-		uha->poll = u24_poll;
-		uha->intr = u24intr;
-		uha->init = u24_init;
-
-		uha->sc_iobase = ia->ia_iobase = iobase;
-		return 0;
-	}
-
-	return ENXIO;
-}
-
-void
-u14_init(uha)
-	struct uha_softc *uha;
-{
-	int iobase = uha->sc_iobase;
-
-	/* make sure interrupts are enabled */
-#ifdef UHADEBUG
-	printf("u14_init: lmask=%02x, smask=%02x\n",
-	    inb(iobase + U14_LMASK), inb(iobase + U14_SMASK));
-#endif
-	outb(iobase + U14_LMASK, 0xd1);	/* XXX */
-	outb(iobase + U14_SMASK, 0x91);	/* XXX */
-}
-
-void
-u24_init(uha)
-	struct uha_softc *uha;
-{
-	int iobase = uha->sc_iobase;
-
-	/* free OGM and ICM */
-	outb(iobase + U24_OGMCMD, 0);
-	outb(iobase + U24_ICMCMD, 0);
-	/* make sure interrupts are enabled */
-#ifdef UHADEBUG
-	printf("u24_init: lmask=%02x, smask=%02x\n",
-	    inb(iobase + U24_LMASK), inb(iobase + U24_SMASK));
-#endif
-	outb(iobase + U24_LMASK, 0xd2);	/* XXX */
-	outb(iobase + U24_SMASK, 0x92);	/* XXX */
-}
-
-void
-uhaminphys(bp)
-	struct buf *bp;
-{
-
-	if (bp->b_bcount > ((UHA_NSEG - 1) << PGSHIFT))
-		bp->b_bcount = ((UHA_NSEG - 1) << PGSHIFT);
-	minphys(bp);
-}
-
-/*
- * start a scsi operation given the command and the data address.  Also
- * needs the unit, target and lu.
- */
-int
-uha_scsi_cmd(xs)
-	struct scsi_xfer *xs;
-{
-	struct scsi_link *sc_link = xs->sc_link;
-	struct uha_softc *uha = sc_link->adapter_softc;
-	struct uha_mscp *mscp;
-	struct uha_dma_seg *sg;
-	int seg;		/* scatter gather seg being worked on */
-	u_long thiskv, thisphys, nextphys;
-	int bytes_this_seg, bytes_this_page, datalen, flags;
-#ifdef TFS
-	struct iovec *iovp;
-#endif
-	int s;
-
-	SC_DEBUG(sc_link, SDEV_DB2, ("uha_scsi_cmd\n"));
-	/*
-	 * get a mscp (mbox-out) to use. If the transfer
-	 * is from a buf (possibly from interrupt time)
-	 * then we can't allow it to sleep
-	 */
-	flags = xs->flags;
-	if ((flags & (ITSDONE|INUSE)) != INUSE) {
-		printf("%s: done or not in use?\n", uha->sc_dev.dv_xname);
-		xs->flags &= ~ITSDONE;
-		xs->flags |= INUSE;
-	}
-	if ((mscp = uha_get_mscp(uha, flags)) == NULL) {
-		xs->error = XS_DRIVER_STUFFUP;
-		return TRY_AGAIN_LATER;
-	}
-	mscp->xs = xs;
-
-	/*
-	 * Put all the arguments for the xfer in the mscp
-	 */
-	if (flags & SCSI_RESET) {
-		mscp->opcode = UHA_SDR;
-		mscp->ca = 0x01;
-	} else {
-		mscp->opcode = UHA_TSP;
-		/* XXX Not for tapes. */
-		mscp->ca = 0x01;
-	}
-	mscp->xdir = UHA_SDET;
-	mscp->dcn = 0x00;
-	mscp->chan = 0x00;
-	mscp->target = sc_link->target;
-	mscp->lun = sc_link->lun;
-	mscp->scsi_cmd_length = xs->cmdlen;
-	mscp->sense_ptr = KVTOPHYS(&mscp->mscp_sense);
-	mscp->req_sense_length = sizeof(mscp->mscp_sense);
-	mscp->host_stat = 0x00;
-	mscp->target_stat = 0x00;
-
-	if (xs->datalen && (flags & SCSI_RESET) == 0) {
-		mscp->data_addr = KVTOPHYS(mscp->uha_dma);
-		sg = mscp->uha_dma;
-		seg = 0;
-		mscp->sgth = 0x01;
-#ifdef	TFS
-		if (flags & SCSI_DATA_UIO) {
-			iovp = ((struct uio *) xs->data)->uio_iov;
-			datalen = ((struct uio *) xs->data)->uio_iovcnt;
-			xs->datalen = 0;
-			while (datalen && seg < UHA_NSEG) {
-				sg->seg_addr = (physaddr)iovp->iov_base;
-				sg->seg_len = iovp->iov_len;
-				xs->datalen += iovp->iov_len;
-				SC_DEBUGN(sc_link, SDEV_DB4, ("(0x%x@0x%x)",
-				    iovp->iov_len, iovp->iov_base));
-				sg++;
-				iovp++;
-				seg++;
-				datalen--;
-			}
-		} else
-#endif /*TFS */
-		{
-			/*
-			 * Set up the scatter gather block
-			 */
-			SC_DEBUG(sc_link, SDEV_DB4,
-			    ("%d @0x%x:- ", xs->datalen, xs->data));
-			datalen = xs->datalen;
-			thiskv = (int) xs->data;
-			thisphys = KVTOPHYS(thiskv);
-
-			while (datalen && seg < UHA_NSEG) {
-				bytes_this_seg = 0;
-
-				/* put in the base address */
-				sg->seg_addr = thisphys;
-
-				SC_DEBUGN(sc_link, SDEV_DB4, ("0x%x", thisphys));
-
-				/* do it at least once */
-				nextphys = thisphys;
-				while (datalen && thisphys == nextphys) {
-					/*
-					 * This page is contiguous (physically)
-					 * with the the last, just extend the
-					 * length
-					 */
-					/* how far to the end of the page */
-					nextphys = (thisphys & ~PGOFSET) + NBPG;
-					bytes_this_page = nextphys - thisphys;
-					/**** or the data ****/
-					bytes_this_page = min(bytes_this_page,
-							      datalen);
-					bytes_this_seg += bytes_this_page;
-					datalen -= bytes_this_page;
-
-					/* get more ready for the next page */
-					thiskv = (thiskv & ~PGOFSET) + NBPG;
-					if (datalen)
-						thisphys = KVTOPHYS(thiskv);
-				}
-				/*
-				 * next page isn't contiguous, finish the seg
-				 */
-				SC_DEBUGN(sc_link, SDEV_DB4,
-				    ("(0x%x)", bytes_this_seg));
-				sg->seg_len = bytes_this_seg;
-				sg++;
-				seg++;
-			}
-		}
-		/* end of iov/kv decision */
-		mscp->data_length = xs->datalen;
-		mscp->sg_num = seg;
-		SC_DEBUGN(sc_link, SDEV_DB4, ("\n"));
-		if (datalen) {
-			/*
-			 * there's still data, must have run out of segs!
-			 */
-			printf("%s: uha_scsi_cmd, more than %d dma segs\n",
-			    uha->sc_dev.dv_xname, UHA_NSEG);
-			xs->error = XS_DRIVER_STUFFUP;
-			uha_free_mscp(uha, mscp, flags);
-			return COMPLETE;
-		}
-	} else {		/* No data xfer, use non S/G values */
-		mscp->data_addr = (physaddr)0;
-		mscp->data_length = 0;
-		mscp->sgth = 0x00;
-		mscp->sg_num = 0;
-	}
-	mscp->link_id = 0;
-	mscp->link_addr = (physaddr)0;
-
-	/*
-	 * Put the scsi command in the mscp and start it
-	 */
-	if ((flags & SCSI_RESET) == 0)
-		bcopy(xs->cmd, &mscp->scsi_cmd, mscp->scsi_cmd_length);
-
-	s = splbio();
-
-	(uha->send_mbox)(uha, mscp);
-
-	/*
-	 * Usually return SUCCESSFULLY QUEUED
-	 */
-	if ((flags & SCSI_POLL) == 0) {
-		timeout(uha_timeout, mscp, (xs->timeout * hz) / 1000);
-		splx(s);
-		return SUCCESSFULLY_QUEUED;
-	}
-
-	splx(s);
-
-	/*
-	 * If we can't use interrupts, poll on completion
-	 */
-	if ((uha->poll)(uha, xs, xs->timeout)) {
-		uha_timeout(mscp);
-		if (!(uha->abort)(uha, mscp))
-			uha_timeout(mscp);
-	}
-	return COMPLETE;
-}
-
-void
-uha_timeout(arg)
-	void *arg;
-{
-	struct uha_mscp *mscp = arg;
-	struct scsi_xfer *xs = mscp->xs;
-	struct scsi_link *sc_link = xs->sc_link;
-	struct uha_softc *uha = sc_link->adapter_softc;
-	int s;
-
-	sc_print_addr(sc_link);
-	printf("timed out");
-
-	s = splbio();
-
-	if (!(uha->abort)(uha, mscp) || (mscp->flags == MSCP_ABORTED)) {
-		/* abort timed out */
-		printf(" AGAIN\n");
-		mscp->xs->retries = 0;		/* I MEAN IT ! */
-		mscp->host_stat = UHA_SBUS_TIMEOUT;
-		uha_done(uha, mscp);
-	} else {
-		/* abort the operation that has timed out */
-		printf("\n");
-		mscp->flags = MSCP_ABORTED;
-		/* 2 secs for the abort */
-		if ((xs->flags & SCSI_POLL) == 0)
-			timeout(uha_timeout, mscp, 2 * hz);
-	}
-
-	splx(s);
-}
-
-#ifdef	UHADEBUG
-void
-uha_print_mscp(mscp)
-	struct uha_mscp *mscp;
-{
-
-	printf("mscp:%x op:%x cmdlen:%d senlen:%d\n",
-	    mscp, mscp->opcode, mscp->scsi_cmd_length, mscp->req_sense_length);
-	printf("	sg:%d sgnum:%x datlen:%d hstat:%x tstat:%x flags:%x\n",
-	    mscp->sgth, mscp->sg_num, mscp->datalen, mscp->host_stat,
-	    mscp->target_stat, mscp->flags);
-	show_scsi_cmd(mscp->xs);
-}
-
-void
-uha_print_active_mscp(uha)
-	struct uha_softc *uha;
-{
-	struct uha_mscp *mscp;
-	int i = 0;
-
-	while (i++ < MSCP_HASH_SIZE) {
-		mscp = uha->mscphash[i];
-		while (mscp) {
-			if (mscp->flags != MSCP_FREE)
-				uha_print_mscp(mscp);
-			mscp = mscp->nexthash;
-		}
-	}
-}
-#endif /*UHADEBUG */