040e3b19e5
attimer(4) is the new body of the part of pcppi(4) that mapped the TIMER1 register to set the pitch of the bell. It was necessary to separate them in order to have a working ACPI attachment (as the two appear as different devices in the ACPI structures).
151 lines
4.9 KiB
C
151 lines
4.9 KiB
C
/* $NetBSD: attimer_isa.c,v 1.1 2005/03/25 23:06:19 cube 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 1.1 2005/03/25 23:06:19 cube 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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