two siop drivers conflict. rename to ssh -- short for Symbios Scripts Hardware

1 files changed, 229 insertions, 0 deletions

diff --git a/sys/arch/mvme68k/dev/sshdma.c b/sys/arch/mvme68k/dev/sshdma.c
new file mode 100644
index 00000000000..76155df4de8
--- /dev/null
+++ b/sys/arch/mvme68k/dev/sshdma.c
@@ -0,0 +1,229 @@
+/*	$OpenBSD: sshdma.c,v 1.1 2001/02/18 17:41:09 deraadt Exp $ */
+
+/*
+ * Copyright (c) 1995 Theo de Raadt
+ * Copyright (c) 1994 Michael L. Hitch
+ * Copyright (c) 1982, 1990 The Regents of the University of California.
+ * 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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)dma.c
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+#include <machine/autoconf.h>
+#include <mvme68k/dev/sshreg.h>
+#include <mvme68k/dev/sshvar.h>
+
+#include "mc.h"
+#include "pcctwo.h"
+
+#if NMC > 0
+#include <mvme68k/dev/mcreg.h>
+#endif
+#if NPCCTWO > 0
+#include <mvme68k/dev/pcctworeg.h>
+#endif
+
+int   afscmatch   __P((struct device *, void *, void *));
+void  afscattach  __P((struct device *, struct device *, void *));
+
+int   sshintr __P((struct ssh_softc *));
+int   afsc_dmaintr   __P((struct ssh_softc *));
+
+struct scsi_adapter afsc_scsiswitch = {
+	ssh_scsicmd,
+	ssh_minphys,
+	0,			/* no lun support */
+	0,			/* no lun support */
+};
+
+struct scsi_device afsc_scsidev = {
+	NULL,		/* use default error handler */
+	NULL,		/* do not have a start function */
+	NULL,		/* have no async handler */
+	NULL,		/* Use default done routine */
+};
+
+struct cfattach ssh_ca = {
+	sizeof(struct ssh_softc), afscmatch, afscattach,
+};
+
+struct cfdriver ssh_cd = {
+	NULL, "ssh", DV_DULL, 0
+};
+
+int
+afscmatch(pdp, vcf, args)
+struct device *pdp;
+void *vcf, *args;
+{
+	struct cfdata *cf = vcf;
+	struct confargs *ca = args;
+
+	return (!badvaddr(ca->ca_vaddr, 4));
+}
+
+void
+afscattach(parent, self, auxp)
+struct device *parent, *self;
+void *auxp;
+{
+	struct ssh_softc *sc = (struct ssh_softc *)self;
+	struct confargs *ca = auxp;
+	ssh_regmap_p rp;
+	int tmp;
+	extern int cpuspeed;
+
+	sc->sc_sshp = rp = ca->ca_vaddr;
+	/*
+	 * ssh uses sc_clock_freq to define the dcntl & ctest7 reg values
+	 * (was 0x0221, but i added SSH_CTEST7_SC0 for snooping control)
+	 * XXX does the clock frequency change for the 33MHz processors?
+	 */
+	sc->sc_clock_freq = cpuspeed * 2;
+#ifdef MVME177
+	/* MVME177 ssh clock documented as fixed 50Mhz in VME177A/HX */
+	if (cputyp == CPU_177)
+		sc->sc_clock_freq = 50;
+#endif
+#ifdef MVME172
+	/* XXX this is a guess! Same as MVME177?*/
+	if (cputyp == CPU_172)
+		sc->sc_clock_freq = 50;
+#endif
+	sc->sc_dcntl = SSH_DCNTL_EA; 
+/*XXX*/	if (sc->sc_clock_freq <= 25)
+/*XXX*/		sc->sc_dcntl |= (2 << 6);
+/*XXX*/	else if (sc->sc_clock_freq <= 37)
+/*XXX*/		sc->sc_dcntl |= (1 << 6);
+/*XXX*/	else if (sc->sc_clock_freq <= 50)
+/*XXX*/		sc->sc_dcntl |= (0 << 6);
+/*XXX*/	else
+/*XXX*/		sc->sc_dcntl |= (3 << 6);
+
+#if defined(MVME172) || defined(MVME177)  /* No Select timouts on MC68060 */
+	if (cputyp == CPU_172 || cputyp == CPU_172)
+		sc->sc_ctest7 = SSH_CTEST7_SNOOP | SSH_CTEST7_TT1 | SSH_CTEST7_STD;
+	else
+#endif 
+		sc->sc_ctest7 = SSH_CTEST7_SNOOP | SSH_CTEST7_TT1;
+
+	sc->sc_link.adapter_softc = sc;
+	sc->sc_link.adapter_target = 7;		/* XXXX should ask ROM */
+	sc->sc_link.adapter = &afsc_scsiswitch;
+	sc->sc_link.device = &afsc_scsidev;
+	sc->sc_link.openings = 1;
+
+	sc->sc_ih.ih_fn = afsc_dmaintr;
+	sc->sc_ih.ih_arg = sc;
+	sc->sc_ih.ih_ipl = ca->ca_ipl;
+
+	sshinitialize(sc);
+
+	switch (ca->ca_bustype) {
+#if NMC > 0
+		case BUS_MC:
+			{
+				struct mcreg *mc = (struct mcreg *)ca->ca_master;
+
+				mcintr_establish(MCV_NCR, &sc->sc_ih);
+				mc->mc_ncrirq = ca->ca_ipl | MC_IRQ_IEN;
+				break;
+			}
+#endif
+#if NPCCTWO > 0
+		case BUS_PCCTWO:
+			{
+				struct pcctworeg *pcc2 = (struct pcctworeg *)ca->ca_master;
+
+				pcctwointr_establish(PCC2V_NCR, &sc->sc_ih);
+				pcc2->pcc2_ncrirq = ca->ca_ipl | PCC2_IRQ_IEN;
+				break;
+			}
+#endif
+	}
+
+	evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt);
+
+	/*
+	 * attach all scsi units on us, watching for boot device
+	 * (see dk_establish).
+	 */
+	tmp = bootpart;
+	if (ca->ca_paddr != bootaddr)
+		bootpart = -1;				/* invalid flag to dk_establish */
+	config_found(self, &sc->sc_link, scsiprint);
+	bootpart = tmp;				 /* restore old value */
+
+}
+
+int
+afsc_dmaintr(sc)
+struct ssh_softc *sc;
+{
+	ssh_regmap_p rp;
+	u_char   istat;
+
+	rp = sc->sc_sshp;
+	istat = rp->ssh_istat;
+	if ((istat & (SSH_ISTAT_SIP | SSH_ISTAT_DIP)) == 0)
+		return (0);
+	if ((rp->ssh_sien | rp->ssh_dien) == 0)
+		return (0);	/* no interrupts enabled */
+
+	/*
+	 * save interrupt status, DMA status, and SCSI status 0
+	 * (may need to deal with stacked interrupts?)
+	 */
+	sc->sc_istat = istat;
+	sc->sc_dstat = rp->ssh_dstat;
+	sc->sc_sstat0 = rp->ssh_sstat0;
+	sshintr(sc);
+	sc->sc_intrcnt.ev_count++;
+	return (1);
+}
+
+#ifdef DEBUG
+void
+afsc_dump()
+{
+	int i;
+
+	for (i = 0; i < afsccd.cd_ndevs; ++i)
+		if (afsccd.cd_devs[i])
+			ssh_dump(afsccd.cd_devs[i]);
+}
+#endif