/* $NetBSD: amdpcib.c,v 1.5 2021/08/07 16:19:07 thorpej Exp $ */

/*
* Copyright (c) 2006 Nicolas Joly
* 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.
* 3. 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 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 FOUNDATION 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: amdpcib.c,v 1.5 2021/08/07 16:19:07 thorpej Exp $");

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

#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include "pcibvar.h"

struct amdpcib_softc {
       /* we are calling pcibattach(), which assumes this starts like this: */
       struct pcib_softc       sc_pcib;
       bus_space_tag_t         sc_memt;
       bus_space_handle_t      sc_memh;
};

static int      amdpcib_match(device_t, cfdata_t, void *);
static void     amdpcib_attach(device_t, device_t, void *);
static int      amdpcib_search(device_t, cfdata_t, const int *, void *);

CFATTACH_DECL_NEW(amdpcib, sizeof(struct amdpcib_softc), amdpcib_match,
   amdpcib_attach, NULL, NULL);

static int
amdpcib_match(device_t parent, cfdata_t match, void *aux)
{
       struct pci_attach_args *pa = aux;

       if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_AMD) &&
           (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_AMD_PBC8111_LPC))
               return 2;

       return 0;
}

static void
amdpcib_attach(device_t parent, device_t self, void *aux)
{
       struct pci_attach_args *pa = aux;

       pcibattach(parent, self, aux);

       config_search(self, pa,
           CFARGS(.search = amdpcib_search,
                  .iattr = "amdpcib"));
}

static int
amdpcib_search(device_t parent, cfdata_t cf, const int *locs, void *aux)
{

       if (config_probe(parent, cf, aux))
               config_attach(parent, cf, aux, NULL,
                   CFARGS(.locators = locs));

       return 0;
}