/* $NetBSD: amdccp_acpi.c,v 1.6 2022/12/18 15:50:32 reinoud Exp $ */

/*
* Copyright (c) 2018 Jonathan A. Kollasch
* 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. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT HOLDER OR
* CONTRIBUTORS 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: amdccp_acpi.c,v 1.6 2022/12/18 15:50:32 reinoud Exp $");

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

#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpi_intr.h>

#include <dev/ic/amdccpvar.h>

static int      amdccp_acpi_match(device_t, cfdata_t, void *);
static void     amdccp_acpi_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(amdccp_acpi, sizeof(struct amdccp_softc),
   amdccp_acpi_match, amdccp_acpi_attach, NULL, NULL);

static const struct device_compatible_entry compat_data[] = {
       { .compat = "AMDI0C00" },
       DEVICE_COMPAT_EOL
};

static int
amdccp_acpi_match(device_t parent, cfdata_t cf, void *aux)
{
       struct acpi_attach_args *aa = aux;

       return acpi_compatible_match(aa, compat_data);
}

static void
amdccp_acpi_attach(device_t parent, device_t self, void *aux)
{
       struct amdccp_softc * const sc = device_private(self);
       struct acpi_attach_args *aa = aux;
       struct acpi_resources res;
       struct acpi_mem *mem;
       ACPI_STATUS rv;
#if notyet
       void *ih;
#endif

       sc->sc_dev = self;

       rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
           &res, &acpi_resource_parse_ops_default);
       if (ACPI_FAILURE(rv))
               return;

       mem = acpi_res_mem(&res, 0);
       if (mem == NULL) {
               aprint_error_dev(self, "couldn't find mem resource\n");
               goto done;
       }

       sc->sc_bst = aa->aa_memt;
       if (bus_space_map(aa->aa_memt, mem->ar_base, mem->ar_length, 0,
           &sc->sc_bsh) != 0) {
               aprint_error_dev(self, "couldn't map registers\n");
               goto done;
       }

#if notyet
       ih = acpi_intr_establish(self,
           (uint64_t)(uintptr_t)aa->aa_node->ad_handle,
           IPL_VM, true, amdccp_intr, sc, device_xname(self));
       if (ih == NULL) {
               aprint_error_dev(self, "couldn't install interrupt handler\n");
               return;
       }

#endif

       amdccp_common_attach(sc);
       pmf_device_register(self, NULL, NULL);

done:
       acpi_resource_cleanup(&res);
}