From 78eadd17b70e32735491571b5bb052b43be5d387 Mon Sep 17 00:00:00 2001
From: uwe <uwe@NetBSD.org>
Date: Tue, 11 Dec 2001 00:31:08 +0000
Subject: [PATCH] Attachment for MI com(4) driver at ebus.

---
 sys/arch/sparc/dev/com_ebus.c | 133 ++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 sys/arch/sparc/dev/com_ebus.c

diff --git a/sys/arch/sparc/dev/com_ebus.c b/sys/arch/sparc/dev/com_ebus.c
new file mode 100644
index 000000000000..4a95b565113e
--- /dev/null
+++ b/sys/arch/sparc/dev/com_ebus.c
@@ -0,0 +1,133 @@
+/*	$NetBSD: com_ebus.c,v 1.1 2001/12/11 00:31:08 uwe Exp $ */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/termios.h>
+
+#include <machine/bus.h>
+#include <machine/autoconf.h>
+#include <machine/intr.h>
+
+#include <dev/pci/pcireg.h>	/* XXX: for PCI_INTERRUPT_PIN */
+
+#include <sparc/dev/ebusreg.h>
+#include <sparc/dev/ebusvar.h>
+
+#include <dev/ic/ns16550reg.h>
+#include <dev/ic/comreg.h>
+#include <dev/ic/comvar.h>
+
+struct com_ebus_softc {
+	struct com_softc ebsc_com;	/* real "com" softc */
+
+	/* this space for rent */
+};
+
+static int com_ebus_match(struct device *, struct cfdata *, void *);
+static void com_ebus_attach(struct device *, struct device *, void *);
+
+struct cfattach com_ebus_ca = {
+	sizeof(struct com_ebus_softc), com_ebus_match, com_ebus_attach
+};
+
+static int
+com_ebus_match(parent, cf, aux)
+	struct device *parent;
+	struct cfdata *cf;
+	void *aux;
+{
+	struct ebus_attach_args *ea = aux;
+	bus_space_handle_t ioh;
+	int match;
+
+	if (strcmp(ea->ea_name, "su") != 0)
+		return (0);
+
+	match = 0;
+	if (ebus_bus_map(ea->ea_bustag,
+			 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]),
+			 ea->ea_reg[0].size,
+			 BUS_SPACE_MAP_LINEAR, 0,
+			 &ioh) == 0)
+	{
+		match = comprobe1(ea->ea_bustag, ioh);
+		bus_space_unmap(ea->ea_bustag, ioh, ea->ea_reg[0].size);
+	}
+
+	return (match);
+}
+
+static void
+com_ebus_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct com_ebus_softc *ebsc = (void *)self;
+	struct com_softc *sc = &ebsc->ebsc_com;
+	struct ebus_attach_args *ea = aux;
+
+	sc->sc_iot = ea->ea_bustag;
+	sc->sc_iobase = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]);
+	sc->sc_frequency = COM_FREQ;
+
+	/*
+	 * XXX: It would be nice to be able to split console input and
+	 * output to different devices.  For now switch to serial
+	 * console if PROM stdin is on serial (so that we can use DDB).
+	 */
+	if (prom_instance_to_package(prom_stdin()) == ea->ea_node)
+		comcnattach(sc->sc_iot, sc->sc_iobase,
+			    B9600, sc->sc_frequency, (CLOCAL | CREAD | CS8));
+
+	if (!com_is_console(sc->sc_iot, sc->sc_iobase, &sc->sc_ioh)
+	    && ebus_bus_map(sc->sc_iot, sc->sc_iobase, ea->ea_reg[0].size,
+			    0, 0, &sc->sc_ioh) != 0)
+	{
+		printf(": unable to map device registers\n");
+		return;
+	}
+
+	com_attach_subr(sc);
+
+	if (ea->ea_nintr != 0)
+		(void)bus_intr_establish(sc->sc_iot,
+					 ea->ea_intr[0], IPL_SERIAL, 0,
+					 comintr, sc);
+}