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/* $OpenBSD: if_mtd_pci.c,v 1.14 2024/05/24 06:02:56 jsg Exp $ */
/*
* Copyright (c) 2003 Oleg Safiullin <form@pdp11.org.ru>
* 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 unmodified, 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 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 AUTHOR 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/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <machine/bus.h>
#include <dev/mii/miivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/ic/mtd8xxreg.h>
#include <dev/ic/mtd8xxvar.h>
static int mtd_pci_match(struct device *, void *, void *);
static void mtd_pci_attach(struct device *, struct device *, void *);
const struct cfattach mtd_pci_ca = {
sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach
};
static const struct pci_matchid mtd_pci_devices[] = {
{ PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD800 },
{ PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 },
{ PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD891 },
};
static int
mtd_pci_match(struct device *parent, void *match, void *aux)
{
return (pci_matchbyid((struct pci_attach_args *)aux, mtd_pci_devices,
sizeof(mtd_pci_devices) / sizeof(mtd_pci_devices[0])));
}
static void
mtd_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct mtd_softc *sc = (void *)self;
struct pci_attach_args *pa = aux;
pci_intr_handle_t ih;
const char *intrstr = NULL;
u_int32_t command;
bus_size_t iosize;
sc->sc_devid = PCI_PRODUCT(pa->pa_id);
command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
if (sc->sc_devid == PCI_PRODUCT_MYSON_MTD800 &&
pci_conf_read(pa->pa_pc, pa->pa_tag, MTD_PCI_LOIO) & 0x300) {
pa->pa_flags &= ~PCI_FLAGS_IO_ENABLED;
command &= ~PCI_COMMAND_IO_ENABLE;
}
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
if (command & PCI_COMMAND_MEM_ENABLE) {
if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
&sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
printf(": can't map mem space\n");
return;
}
} else {
if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
&sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
printf(": can't map io space\n");
return;
}
}
/*
* Allocate our interrupt.
*/
if (pci_intr_map(pa, &ih)) {
printf(": couldn't map interrupt\n");
bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
return;
}
intrstr = pci_intr_string(pa->pa_pc, ih);
if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_intr, sc,
self->dv_xname) == NULL) {
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
return;
}
printf(": %s", intrstr);
sc->sc_dmat = pa->pa_dmat;
mtd_attach(sc);
}
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