133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
/* $OpenBSD: if_mtd_pci.c,v 1.13 2022/08/29 06:08:04 jsg Exp $ */
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/*
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* Copyright (c) 2003 Oleg Safiullin <form@pdp11.org.ru>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <machine/bus.h>
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#include <dev/mii/miivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/ic/mtd8xxreg.h>
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#include <dev/ic/mtd8xxvar.h>
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static int mtd_pci_match(struct device *, void *, void *);
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static void mtd_pci_attach(struct device *, struct device *, void *);
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const struct cfattach mtd_pci_ca = {
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sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach
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};
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static const struct pci_matchid mtd_pci_devices[] = {
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{ PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD800 },
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{ PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 },
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{ PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD891 },
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};
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static int
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mtd_pci_match(struct device *parent, void *match, void *aux)
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{
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return (pci_matchbyid((struct pci_attach_args *)aux, mtd_pci_devices,
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sizeof(mtd_pci_devices) / sizeof(mtd_pci_devices[0])));
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}
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static void
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mtd_pci_attach(struct device *parent, struct device *self, void *aux)
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{
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struct mtd_softc *sc = (void *)self;
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struct pci_attach_args *pa = aux;
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pci_intr_handle_t ih;
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const char *intrstr = NULL;
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u_int32_t command;
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bus_size_t iosize;
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sc->sc_devid = PCI_PRODUCT(pa->pa_id);
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command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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if (sc->sc_devid == PCI_PRODUCT_MYSON_MTD800 &&
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pci_conf_read(pa->pa_pc, pa->pa_tag, MTD_PCI_LOIO) & 0x300) {
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pa->pa_flags &= ~PCI_FLAGS_IO_ENABLED;
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command &= ~PCI_COMMAND_IO_ENABLE;
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}
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
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command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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if (command & PCI_COMMAND_MEM_ENABLE) {
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if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
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&sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
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printf(": can't map mem space\n");
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return;
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}
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} else {
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if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
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&sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
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printf(": can't map io space\n");
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return;
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}
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}
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/*
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* Allocate our interrupt.
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*/
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if (pci_intr_map(pa, &ih)) {
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printf(": couldn't map interrupt\n");
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bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
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return;
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}
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intrstr = pci_intr_string(pa->pa_pc, ih);
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if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_intr, sc,
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self->dv_xname) == NULL) {
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printf(": couldn't establish interrupt");
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
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return;
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}
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printf(": %s", intrstr);
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sc->sc_dmat = pa->pa_dmat;
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mtd_attach(sc);
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}
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