155 lines
4.2 KiB
C
155 lines
4.2 KiB
C
/* $NetBSD: npx_acpi.c,v 1.1 2002/12/28 17:51:16 jmcneill Exp $ */
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/*
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* Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: npx_acpi.c,v 1.1 2002/12/28 17:51:16 jmcneill Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <machine/cpufunc.h>
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#include <machine/intr.h>
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#include <machine/specialreg.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isadmavar.h>
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#include <dev/acpi/acpica.h>
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#include <dev/acpi/acpireg.h>
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#include <dev/acpi/acpivar.h>
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#include <i386/isa/npxvar.h>
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int npx_acpi_match(struct device *, struct cfdata *, void *);
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void npx_acpi_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(npx_acpi, sizeof(struct npx_softc), npx_acpi_match,
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npx_acpi_attach, NULL, NULL);
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/*
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* Supported device IDs
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*/
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static const char * const npx_acpi_ids[] = {
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"PNP0C04", /* Math Coprocessor */
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NULL
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};
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/*
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* npx_acpi_match: autoconf(9) match routine
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*/
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int
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npx_acpi_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct acpi_attach_args *aa = aux;
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const char *id;
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int i;
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if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
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return 0;
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for (i = 0; (id = npx_acpi_ids[i]) != NULL; ++i) {
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if (strcmp(aa->aa_node->ad_devinfo.HardwareId, id) == 0)
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return 1;
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}
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/* No matches found */
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return 0;
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}
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/*
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* npx_acpi_attach: autoconf(9) attach routine
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*/
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void
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npx_acpi_attach(struct device *parent, struct device *self, void *aux)
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{
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struct npx_softc *sc = (struct npx_softc *)self;
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struct acpi_attach_args *aa = aux;
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struct acpi_resources res;
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struct acpi_io *io;
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struct acpi_irq *irq;
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ACPI_STATUS rv;
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printf("\n");
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/* parse resources */
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rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node, &res,
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&acpi_resource_parse_ops_default);
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if (rv != AE_OK) {
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printf("%s: unable to parse resources\n", sc->sc_dev.dv_xname);
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return;
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}
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/* find our i/o registers */
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io = acpi_res_io(&res, 0);
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if (io == NULL) {
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printf("%s: unable to find i/o register resource\n",
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sc->sc_dev.dv_xname);
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return;
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}
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/* find our IRQ */
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irq = acpi_res_irq(&res, 0);
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if (irq == NULL) {
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printf("%s: unable to find irq resource\n",
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sc->sc_dev.dv_xname);
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return;
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}
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sc->sc_iot = aa->aa_iot;
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if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length,
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0, &sc->sc_ioh)) {
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printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
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return;
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}
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sc->sc_type = npxprobe1(sc->sc_iot, sc->sc_ioh, irq->ar_irq);
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switch (sc->sc_type) {
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case NPX_INTERRUPT:
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lcr0(rcr0() & ~CR0_NE);
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sc->sc_ih = isa_intr_establish(aa->aa_ic, irq->ar_irq,
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(irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE:IST_LEVEL,
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IPL_NONE, (int (*)(void *))npxintr, NULL);
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break;
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case NPX_EXCEPTION:
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printf("%s: using exception 16\n", sc->sc_dev.dv_xname);
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break;
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case NPX_BROKEN:
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printf("%s: error reporting broken; not using\n",
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sc->sc_dev.dv_xname);
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sc->sc_type = NPX_NONE;
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return;
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case NPX_NONE:
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panic("npx_acpi_attach");
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}
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npxattach(sc);
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}
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