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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 Beckhoff Automation GmbH & Co. KG
* Author: Corvin Köhne <c.koehne@beckhoff.com>
*/
#include <sys/types.h>
#include <dev/pci/pcireg.h>
#include <errno.h>
#include "pci_gvt-d-opregion.h"
#include "pci_passthru.h"
#define PCI_VENDOR_INTEL 0x8086
static int
gvt_d_probe(struct pci_devinst *const pi)
{
struct passthru_softc *sc;
uint16_t vendor;
uint8_t class;
sc = pi->pi_arg;
vendor = read_config(passthru_get_sel(sc), PCIR_VENDOR, 0x02);
if (vendor != PCI_VENDOR_INTEL)
return (ENXIO);
class = read_config(passthru_get_sel(sc), PCIR_CLASS, 0x01);
if (class != PCIC_DISPLAY)
return (ENXIO);
return (0);
}
static int
gvt_d_init(struct pci_devinst *const pi __unused, nvlist_t *const nvl __unused)
{
return (0);
}
static void
gvt_d_deinit(struct pci_devinst *const pi __unused)
{
}
static struct passthru_dev gvt_d_dev = {
.probe = gvt_d_probe,
.init = gvt_d_init,
.deinit = gvt_d_deinit,
};
PASSTHRU_DEV_SET(gvt_d_dev);
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