142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
/* $NetBSD: mpu_acpi.c,v 1.8 2008/03/27 10:22:00 xtraeme 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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/*
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* ACPI mpu(4) attachment based in lpt_acpi.c by Jared D. McNeill.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mpu_acpi.c,v 1.8 2008/03/27 10:22:00 xtraeme 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/syslog.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/bus.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 <dev/ic/mpuvar.h>
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static int mpu_acpi_match(device_t, cfdata_t, void *);
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static void mpu_acpi_attach(device_t, device_t, void *);
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struct mpu_acpi_softc {
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struct mpu_softc sc_mpu;
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};
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CFATTACH_DECL_NEW(mpu_acpi, sizeof(struct mpu_acpi_softc), mpu_acpi_match,
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mpu_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 mpu_acpi_ids[] = {
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"PNPB006", /* Roland MPU-401 (compatible) MIDI UART */
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NULL
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};
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/*
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* mpu_acpi_match: autoconf(9) match routine
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*/
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static int
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mpu_acpi_match(device_t parent, cfdata_t match, void *aux)
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{
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struct acpi_attach_args *aa = aux;
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if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
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return 0;
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return acpi_match_hid(aa->aa_node->ad_devinfo, mpu_acpi_ids);
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}
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/*
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* mpu_acpi_attach: autoconf(9) attach routine
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*/
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static void
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mpu_acpi_attach(device_t parent, device_t self, void *aux)
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{
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struct mpu_acpi_softc *asc = device_private(self);
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struct mpu_softc *sc = &asc->sc_mpu;
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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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aprint_naive("\n");
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aprint_normal("\n");
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/* parse resources */
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rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS",
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&res, &acpi_resource_parse_ops_default);
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if (ACPI_FAILURE(rv))
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return;
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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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aprint_error_dev(self,
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"unable to find i/o register resource\n");
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goto out;
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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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aprint_error_dev(self, "unable to find irq resource\n");
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goto out;
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}
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sc->iot = aa->aa_iot;
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if (bus_space_map(sc->iot, io->ar_base, io->ar_length, 0, &sc->ioh)) {
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aprint_error_dev(self, "can't map i/o space\n");
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goto out;
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}
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sc->model = "Roland MPU-401 MIDI UART";
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sc->sc_dev = self;
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mpu_attach(sc);
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sc->arg = 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_AUDIO, mpu_intr, sc);
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out:
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acpi_resource_cleanup(&res);
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}
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