/* $NetBSD: pcppi_acpi.c,v 1.13 2021/01/29 15:49:55 thorpej Exp $ */

/*
* Copyright (c) 2002 Jared D. McNeill <[email protected]>
* 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. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/

/*
* ACPI pcppi(4) attachment based on lpt_acpi.c by Jared D. McNeill.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pcppi_acpi.c,v 1.13 2021/01/29 15:49:55 thorpej Exp $");

#include <sys/param.h>
#include <sys/device.h>

#include <dev/acpi/acpivar.h>

#include <dev/isa/pcppivar.h>

static int      pcppi_acpi_match(device_t, cfdata_t, void *);
static void     pcppi_acpi_attach(device_t, device_t, void *);

struct pcppi_acpi_softc {
       struct pcppi_softc sc_pcppi;
};

CFATTACH_DECL_NEW(pcppi_acpi, sizeof(struct pcppi_acpi_softc),
   pcppi_acpi_match, pcppi_acpi_attach, pcppi_detach, NULL);

/*
* Supported device IDs
*/

static const struct device_compatible_entry compat_data[] = {
       { .compat = "PNP0800" },        /* AT-style speaker sound */
       DEVICE_COMPAT_EOL
};

/*
* pcppi_acpi_match: autoconf(9) match routine
*/
static int
pcppi_acpi_match(device_t parent, cfdata_t match, void *aux)
{
       struct acpi_attach_args *aa = aux;

       return acpi_compatible_match(aa, compat_data);
}

/*
* pcppi_acpi_attach: autoconf(9) attach routine
*/
static void
pcppi_acpi_attach(device_t parent, device_t self, void *aux)
{
       struct pcppi_acpi_softc *asc = device_private(self);
       struct pcppi_softc *sc = &asc->sc_pcppi;
       struct acpi_attach_args *aa = aux;
       struct acpi_resources res;
       struct acpi_io *io;
       ACPI_STATUS rv;

       sc->sc_dv = self;

       /* parse resources */
       rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS",
           &res, &acpi_resource_parse_ops_default);
       if (ACPI_FAILURE(rv))
               return;

       /* find our i/o registers */
       io = acpi_res_io(&res, 0);
       if (io == NULL) {
               aprint_error_dev(self,
                   "unable to find i/o register resource\n");
               goto out;
       }

       sc->sc_iot = aa->aa_iot;
       sc->sc_size = io->ar_length;
       if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size,
                   0, &sc->sc_ppi_ioh)) {
               aprint_error_dev(self, "can't map i/o space\n");
               goto out;
       }

       pcppi_attach(sc);

out:
       acpi_resource_cleanup(&res);
}