Switch OpenBSD/hp300 to wscons, still using on-board ROM fonts for now.

Main features:
- MI hil drivers, allowing live plug/unplug of devices, and the keyboard
  does not need to be at id 1 anymore.
- SGC bus support on 4xx models. SGC frame buffers are supported too, but
  not as console, though you can use them as a regular glass terminal if
  you run a getty on ttyC0. Currently not compiled-in, awaiting for an sti(4)
  fix to be commited.
- HP-UX compatibility interfaces are removed. grfinfo and hilinfo are removed.

X11 support is currently broken by these changes; X.org X11R6 support will
be available very soon.

Tested on hyperion and 4 different flavours of catseye/topcat/kathmandu; other,
older frame buffers (davinci, gatorbox and renaissance) could not been tested
but should work; please report any regression.

1 files changed, 144 insertions, 0 deletions

diff --git a/sys/arch/hp300/dev/sgc.c b/sys/arch/hp300/dev/sgc.c
new file mode 100644
index 00000000000..eb1707df1af
--- /dev/null
+++ b/sys/arch/hp300/dev/sgc.c
@@ -0,0 +1,144 @@
+/*	$OpenBSD: sgc.c,v 1.1 2005/01/14 22:39:26 miod Exp $	*/
+
+/*
+ * Copyright (c) 2005, Miodrag Vallat
+ *
+ * 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.
+ *
+ * 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.
+ *
+ */
+
+/*
+ * SGC bus attachment and mapping glue.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+
+#include <machine/autoconf.h>
+#include <machine/cpu.h>
+#include <machine/hp300spu.h>
+
+#include <hp300/dev/dmavar.h>
+
+#include <hp300/dev/sgcreg.h>
+#include <hp300/dev/sgcvar.h>
+
+int	sgcmatch(struct device *, void *, void *);
+void	sgcattach(struct device *, struct device *, void *);
+int	sgcprint(void *, const char *);
+
+struct cfattach sgc_ca = {
+	sizeof(struct device), sgcmatch, sgcattach
+};
+
+struct cfdriver sgc_cd = {
+	NULL, "sgc", DV_DULL
+};
+
+int
+sgcmatch(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+static	int sgc_matched = 0;
+
+	/* Allow only one instance. */
+	if (sgc_matched)
+		return (0);
+
+	/*
+	 * Leave out machines which can not have an SGC bus.
+	 */
+
+	if (machineid != HP_400 && machineid != HP_425 &&
+	    machineid != HP_433)
+		return (0);
+
+	return (sgc_matched = 1);
+}
+
+void
+sgcattach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct sgc_attach_args saa;
+	caddr_t pa, va;
+	int slot, rv;
+
+	printf("\n");
+
+	for (slot = 0; slot < SGC_NSLOTS; slot++) {
+		pa = sgc_slottopa(slot);
+		va = iomap(pa, PAGE_SIZE);
+		if (va == NULL) {
+			printf("%s: can't map slot %d\n", self->dv_xname, slot);
+			continue;
+		}
+
+		/* Check for hardware. */
+		rv = badaddr(va);
+		iounmap(va, PAGE_SIZE);
+
+		if (rv != 0)
+			continue;
+
+		bzero(&saa, sizeof(saa));
+		saa.saa_slot = slot;
+
+		/* Attach matching device. */
+		config_found(self, &saa, sgcprint);
+	}
+}
+
+int
+sgcprint(aux, pnp)
+	void *aux;
+	const char *pnp;
+{
+	struct sgc_attach_args *saa = aux;
+
+	if (pnp)
+		printf("unknown SGC card at %s", pnp);
+	printf(" slot %d", saa->saa_slot);
+	return (UNCONF);
+}
+
+/*
+ * Convert a slot number to a system physical address.
+ * This is needed for bus_space.
+ */
+void *
+sgc_slottopa(int slot)
+{
+	u_long rval;
+
+	if (slot < 0 || slot > SGC_NSLOTS)
+		rval = 0;
+	else
+		rval = SGC_BASE + (slot * SGC_DEVSIZE);
+
+	return ((void *)rval);
+}