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freebsd/sys/dev/ed/if_ed_pci.c
Warner Losh 92a6736a5b If we can't probe the RTL80x9 for some reason, fall back to probing it
as a Novell NE-2000.  This is necessary for unpatched qemu working
correctly.  qemu claims to be a RTL8029, but doesn't implement the
RTL8029 specific registers at this time.  I've created patches for
that, but there's no reason we can't use qemu's emulation w/o these
patches.  This should make life easier for those folks that boot
FreeBSD via qemu.
2005-10-13 22:12:34 +00:00

140 lines
3.4 KiB
C

/*-
* Copyright (c) 1996 Stefan Esser <se@freebsd.org>
* 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 immediately at the beginning of the file, without modification,
* 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. Absolutely no warranty of function or purpose is made by the author
* Stefan Esser.
* 4. Modifications may be freely made to this file if the above conditions
* are met.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <net/if_mib.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/ed/if_edvar.h>
#include <dev/ed/rtl80x9reg.h>
static struct _pcsid
{
uint32_t type;
const char *desc;
} pci_ids[] =
{
{ ED_RTL8029_PCI_ID, "RealTek 8029" },
{ 0x50004a14, "NetVin 5000" },
{ 0x09401050, "ProLAN" },
{ 0x140111f6, "Compex" },
{ 0x30008e2e, "KTI" },
{ 0x19808c4a, "Winbond W89C940" },
{ 0x0e3410bd, "Surecom NE-34" },
{ 0x09261106, "VIA VT86C926" },
{ 0x00000000, NULL }
};
static int ed_pci_probe(device_t);
static int ed_pci_attach(device_t);
static int
ed_pci_probe(device_t dev)
{
uint32_t type = pci_get_devid(dev);
struct _pcsid *ep =pci_ids;
while (ep->type && ep->type != type)
++ep;
if (ep->desc == NULL)
return (ENXIO);
device_set_desc(dev, ep->desc);
return (BUS_PROBE_DEFAULT);
}
static int
ed_pci_attach(device_t dev)
{
struct ed_softc *sc = device_get_softc(dev);
int flags = 0;
int error = ENXIO;
/*
* If this card claims to be a RTL8029, probe it as such.
* However, allow that probe to fail. Some versions of qemu
* claim to be a 8029 in the PCI register, but it doesn't
* implement the 8029 specific registers. In that case, fall
* back to a normal NE2000.
*/
if (pci_get_devid(dev) == ED_RTL8029_PCI_ID)
error = ed_probe_RTL80x9(dev, PCIR_BAR(0), flags);
if (error)
error = ed_probe_Novell(dev, PCIR_BAR(0), flags);
if (error) {
ed_release_resources(dev);
return (error);
}
ed_Novell_read_mac(sc);
error = ed_alloc_irq(dev, 0, RF_SHAREABLE);
if (error) {
ed_release_resources(dev);
return (error);
}
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
edintr, sc, &sc->irq_handle);
if (error) {
ed_release_resources(dev);
return (error);
}
error = ed_attach(dev);
if (error)
ed_release_resources(dev);
return (error);
}
static device_method_t ed_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ed_pci_probe),
DEVMETHOD(device_attach, ed_pci_attach),
DEVMETHOD(device_detach, ed_detach),
{ 0, 0 }
};
static driver_t ed_pci_driver = {
"ed",
ed_pci_methods,
sizeof(struct ed_softc),
};
DRIVER_MODULE(ed, pci, ed_pci_driver, ed_devclass, 0, 0);
MODULE_DEPEND(ed, pci, 1, 1, 1);
MODULE_DEPEND(ed, ether, 1, 1, 1);