Attachment for MI com(4) driver at ebus.
This commit is contained in:
uwe
parent
81f0e10ca5
commit
78eadd17b7
|
|
@ -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);
|
||||
}
|
||||
Loading…
Reference in New Issue