151 lines
4.9 KiB
C
151 lines
4.9 KiB
C
/* $NetBSD: attimer_isa.c,v 1.2 2005/12/11 12:22:02 christos Exp $ */
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/*
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* Copyright (c) 2005 The NetBSD Foundation.
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* All rights reserved.
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*
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* This code is derived from software contributed to the NetBSD Foundation
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* by Quentin Garnier.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* ISA attachment for attimer(4)
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: attimer_isa.c,v 1.2 2005/12/11 12:22:02 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <machine/bus.h>
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#include <dev/ic/attimervar.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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static int attimer_isa_match(struct device *, struct cfdata *, void *);
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static void attimer_isa_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(attimer_isa, sizeof(struct attimer_softc),
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attimer_isa_match, attimer_isa_attach, NULL, NULL);
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static int
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attimer_isa_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct isa_attach_args *ia = aux;
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bus_space_handle_t att_ioh;
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if (ISA_DIRECT_CONFIG(ia))
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return (0);
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/* If values are hardwired to something that they can't be, punt. */
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if (ia->ia_nio < 1 ||
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(ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT &&
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ia->ia_io[0].ir_addr != IO_TIMER1))
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return (0);
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if (ia->ia_niomem > 0 &&
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(ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM))
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return (0);
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if (ia->ia_nirq > 0 &&
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(ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ))
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return (0);
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if (ia->ia_ndrq > 0 &&
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(ia->ia_drq[0].ir_drq != ISA_UNKNOWN_DRQ))
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return (0);
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if (bus_space_map(ia->ia_iot, IO_TIMER1, 4, 0, &att_ioh))
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return 0;
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bus_space_unmap(ia->ia_iot, att_ioh, 4);
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ia->ia_io[0].ir_addr = IO_TIMER1;
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ia->ia_io[0].ir_size = 4;
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ia->ia_nio = 1;
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ia->ia_niomem = 0;
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ia->ia_nirq = 0;
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ia->ia_ndrq = 0;
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return 1;
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}
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static void
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attimer_isa_attach(struct device *parent, struct device *self, void *aux)
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{
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struct attimer_softc *sc = (struct attimer_softc *)self;
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struct isa_attach_args *ia = aux;
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sc->sc_iot = ia->ia_iot;
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aprint_normal(": AT Timer\n");
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if (bus_space_map(sc->sc_iot, IO_TIMER1, 4, 0, &sc->sc_ioh) != 0)
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aprint_error("%s: could not map registers\n",
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sc->sc_dev.dv_xname);
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else
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attimer_attach(sc);
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}
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