freebsd-dev/sys/dev/sbni/if_sbni_pci.c

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/*
* Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
* Author: Denis I.Timofeev <timofeev@granch.ru>
*
* Redistributon 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 NEIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/bus.h>
#include <sys/bus_private.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sys/malloc.h>
#include <net/if.h>
#include <net/ethernet.h>
#include <net/if_arp.h>
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#include <dev/sbni/if_sbnireg.h>
#include <dev/sbni/if_sbnivar.h>
static int sbni_pci_probe(device_t);
static int sbni_pci_attach(device_t);
static device_method_t sbni_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sbni_pci_probe),
DEVMETHOD(device_attach, sbni_pci_attach),
{ 0, 0 }
};
static driver_t sbni_pci_driver = {
"sbni",
sbni_pci_methods,
sizeof(struct sbni_softc)
};
static devclass_t sbni_pci_devclass;
DRIVER_MODULE(if_sbni, pci, sbni_pci_driver, sbni_pci_devclass, 0, 0);
static int
sbni_pci_probe(device_t dev)
{
struct sbni_softc *sc;
u_int32_t ports;
ports = SBNI_PORTS;
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if (pci_get_vendor(dev) != SBNI_PCI_VENDOR ||
pci_get_device(dev) != SBNI_PCI_DEVICE)
return (ENXIO);
sc = device_get_softc(dev);
bzero(sc, sizeof(struct sbni_softc));
if (pci_get_subdevice(dev) == 2) {
ports <<= 1;
sc->slave_sc = malloc(sizeof(struct sbni_softc),
M_DEVBUF, M_NOWAIT | M_ZERO);
if (!sc->slave_sc)
return (ENOMEM);
device_set_desc(dev, "Granch SBNI12/PCI Dual adapter");
} else
device_set_desc(dev, "Granch SBNI12/PCI adapter");
sc->io_rid = PCIR_MAPS;
sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->io_rid,
0ul, ~0ul, ports, RF_ACTIVE);
if (!sc->io_res) {
printf("sbni: cannot allocate io ports!\n");
if (sc->slave_sc)
free(sc->slave_sc, M_DEVBUF);
return (ENOENT);
}
if (sc->slave_sc) {
sc->slave_sc->io_res = sc->io_res;
sc->slave_sc->io_off = 4;
}
if (sbni_probe(sc) != 0) {
bus_release_resource(dev, SYS_RES_IOPORT,
sc->io_rid, sc->io_res);
if (sc->slave_sc)
free(sc->slave_sc, M_DEVBUF);
return (ENXIO);
}
device_quiet(dev);
return (0);
}
static int
sbni_pci_attach(device_t dev)
{
struct sbni_softc *sc;
struct sbni_flags flags;
int error;
sc = device_get_softc(dev);
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printf("sbni%d: <Granch SBNI12/PCI%sadapter> port 0x%lx",
next_sbni_unit, sc->slave_sc ? " Dual " : " ",
rman_get_start(sc->io_res));
sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid,
0ul, ~0ul, 1, RF_SHAREABLE);
if (sc->irq_res) {
printf(" irq %ld\n", rman_get_start(sc->irq_res));
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
sbni_intr, sc, &sc->irq_handle);
if (error) {
printf("sbni%d: bus_setup_intr\n", next_sbni_unit);
goto attach_failed;
}
} else {
printf("\nsbni%d: cannot claim irq!\n", next_sbni_unit);
error = ENOENT;
goto attach_failed;
}
*(u_int32_t*)&flags = 0;
sbni_attach(sc, next_sbni_unit++, flags);
if (sc->slave_sc)
sbni_attach(sc->slave_sc, next_sbni_unit++, flags);
return (0);
attach_failed:
bus_release_resource(dev, SYS_RES_IOPORT, sc->io_rid, sc->io_res);
if (sc->irq_res) {
bus_release_resource(
dev, SYS_RES_IRQ, sc->irq_rid, sc->irq_res);
}
if (sc->slave_sc)
free(sc->slave_sc, M_DEVBUF);
return (error);
}