1 files changed, 96 insertions, 0 deletions
diff --git a/sys/arch/pmax/dev/sii_ds.c b/sys/arch/pmax/dev/sii_ds.c
new file mode 100644
index 00000000000..5d5789bd3c3
--- /dev/null
+++ b/sys/arch/pmax/dev/sii_ds.c
@@ -0,0 +1,96 @@
+/*	$NetBSD: sii_ds.c,v 1.2 1996/10/13 16:59:15 christos Exp $	*/
+
+/*
+ * Copyright 1996 The Board of Trustees of The Leland Stanford
+ * Junior University. All Rights Reserved.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies.  Stanford University
+ * makes no representations about the suitability of this
+ * software for any purpose.  It is provided "as is" without
+ * express or implied warranty.
+ *
+ * this driver contributed by Jonathan Stone
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/types.h>
+#include <sys/device.h>
+#include <sys/tty.h>
+#include <machine/autoconf.h>
+#include <pmax/dev/device.h>		/* XXX old pmax SCSI drivers */
+#include <pmax/dev/siireg.h>
+#include <pmax/dev/siivar.h>
+
+#include <pmax/pmax/kn01.h>		/* kn01 (ds3100) address constants */
+
+extern struct cfdriver mainbus_cd;	/* XXX */
+
+/*
+ * Autoconfig definition of driver front-end
+ */
+int	sii_ds_match  __P((struct device * parent, void *cfdata, void *aux));
+void	sii_ds_attach __P((struct device *parent, struct device *self, void *aux));
+
+
+extern struct cfattach sii_ds_ca;
+struct cfattach sii_ds_ca = {
+	sizeof(struct siisoftc), sii_ds_match, sii_ds_attach
+};
+
+
+/* define a safe address in the SCSI buffer for doing status & message DMA */
+#define SII_BUF_ADDR	(MACH_PHYS_TO_UNCACHED(KN01_SYS_SII_B_START) \
+		+ SII_MAX_DMA_XFER_LENGTH * 14)
+
+/*
+ * Match driver on Decstation (2100, 3100, 5100) based on name and probe.
+ */
+int
+sii_ds_match(parent, match, aux)
+	struct device *parent;
+	void *match;
+	void *aux;
+{
+	struct confargs *ca = aux;
+	register void * siiaddr;
+
+	if (strcmp(ca->ca_name, "sii") != 0 &&
+	    strncmp(ca->ca_name, "PMAZ-AA ", 8) != 0) /*XXX*/
+		return (0);
+
+	/* XXX check for bad address, untested */
+	siiaddr = (void *)ca->ca_addr;
+	if (siiaddr != (void *)MACH_PHYS_TO_UNCACHED(KN01_SYS_SII)) {
+		printf("(siimatch: bad addr %x, substituting %x\n",
+			ca->ca_addr, MACH_PHYS_TO_UNCACHED(KN01_SYS_SII));
+		siiaddr = (void *)MACH_PHYS_TO_UNCACHED(KN01_SYS_SII);
+	}
+	if (badaddr(siiaddr, 4))
+		return (0);
+	return (1);
+}
+
+void
+sii_ds_attach(parent, self, aux)
+	struct device *parent;
+	struct device *self;
+	void *aux;
+{
+	register struct confargs *ca = aux;
+	register struct siisoftc *sc = (struct siisoftc *) self;
+
+	sc->sc_regs = (SIIRegs *)MACH_PHYS_TO_UNCACHED(ca->ca_addr);
+
+	/* set up scsi buffer.  XXX Why statically allocated? */
+	sc->sc_buf = (void*)(MACH_PHYS_TO_UNCACHED(KN01_SYS_SII_B_START));
+
+siiattach(sc);
+
+	/* tie pseudo-slot to device */
+	BUS_INTR_ESTABLISH(ca, siiintr, sc);
+	printf("\n");
+}