/* $NetBSD: attimer_isa.c,v 1.13 2009/08/23 16:02:53 jmcneill Exp $ */
/*
* Copyright (c) 2005 The NetBSD Foundation.
* 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.
*
* 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.
*/
/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or
[email protected]
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* ISA attachment for attimer(4)
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: attimer_isa.c,v 1.13 2009/08/23 16:02:53 jmcneill Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/bus.h>
#include <dev/ic/attimervar.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
static int attimer_isa_match(device_t, cfdata_t, void *);
static void attimer_isa_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(attimer_isa, sizeof(struct attimer_softc),
attimer_isa_match, attimer_isa_attach, attimer_detach, NULL);
static int
attimer_isa_match(device_t parent, cfdata_t match, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_handle_t att_ioh;
if (ISA_DIRECT_CONFIG(ia))
return (0);
/* If values are hardwired to something that they can't be, punt. */
if (ia->ia_nio < 1 ||
(ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT &&
ia->ia_io[0].ir_addr != IO_TIMER1))
return (0);
if (ia->ia_niomem > 0 &&
(ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM))
return (0);
if (ia->ia_nirq > 0 &&
(ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ))
return (0);
if (ia->ia_ndrq > 0 &&
(ia->ia_drq[0].ir_drq != ISA_UNKNOWN_DRQ))
return (0);
if (bus_space_map(ia->ia_iot, IO_TIMER1, 4, 0, &att_ioh))
return 0;
bus_space_unmap(ia->ia_iot, att_ioh, 4);
ia->ia_io[0].ir_addr = IO_TIMER1;
ia->ia_io[0].ir_size = 4;
ia->ia_nio = 1;
ia->ia_niomem = 0;
ia->ia_nirq = 0;
ia->ia_ndrq = 0;
return 1;
}
static void
attimer_isa_attach(device_t parent, device_t self, void *aux)
{
struct attimer_softc *sc = device_private(self);
struct isa_attach_args *ia = aux;
sc->sc_dev = self;
sc->sc_iot = ia->ia_iot;
aprint_naive("\n");
aprint_normal("\n");
sc->sc_size = 4;
if (bus_space_map(sc->sc_iot, IO_TIMER1, sc->sc_size, 0,
&sc->sc_ioh) != 0)
aprint_error_dev(self, "could not map registers\n");
else
attimer_attach(sc);
}
