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/*-
* Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
* 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, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* DEC PDQ FDDI Controller; code for BSD derived operating systems
*
* This module supports the DEC DEFPA PCI FDDI Controller
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net/fddi.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pdq/pdq_freebsd.h>
#include <dev/pdq/pdqreg.h>
#define DEC_VENDORID 0x1011
#define DEFPA_CHIPID 0x000F
#define DEFPA_LATENCY 0x88
#define PCI_CFLT 0x0C /* Configuration Latency */
#define PCI_CBMA 0x10 /* Configuration Base Memory Address */
#define PCI_CBIO 0x14 /* Configuration Base I/O Address */
static int pdq_pci_probe (device_t);
static int pdq_pci_attach (device_t);
static int pdq_pci_detach (device_t);
static void pdq_pci_shutdown (device_t);
static void pdq_pci_ifintr (void *);
static void
pdq_pci_ifintr(void *arg)
{
device_t dev;
pdq_softc_t *sc;
dev = (device_t)arg;
sc = device_get_softc(dev);
PDQ_LOCK(sc);
(void) pdq_interrupt(sc->sc_pdq);
PDQ_UNLOCK(sc);
return;
}
/*
* This is the PCI configuration support.
*/
static int
pdq_pci_probe(device_t dev)
{
if (pci_get_vendor(dev) == DEC_VENDORID &&
pci_get_device(dev) == DEFPA_CHIPID) {
device_set_desc(dev, "Digital DEFPA PCI FDDI Controller");
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
pdq_pci_attach(device_t dev)
{
pdq_softc_t *sc;
struct ifnet *ifp;
u_int32_t command;
int error;
sc = device_get_softc(dev);
ifp = sc->ifp;
sc->dev = dev;
/*
* Map control/status registers.
*/
pci_enable_busmaster(dev);
command = pci_read_config(dev, PCIR_LATTIMER, 1);
if (command < DEFPA_LATENCY) {
command = DEFPA_LATENCY;
pci_write_config(dev, PCIR_LATTIMER, command, 1);
}
sc->mem_rid = PCI_CBMA;
sc->mem_type = SYS_RES_MEMORY;
sc->mem = bus_alloc_resource_any(dev, sc->mem_type, &sc->mem_rid,
RF_ACTIVE);
if (!sc->mem) {
device_printf(dev, "Unable to allocate I/O space resource.\n");
error = ENXIO;
goto bad;
}
sc->mem_bsh = rman_get_bushandle(sc->mem);
sc->mem_bst = rman_get_bustag(sc->mem);
sc->irq_rid = 0;
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
RF_SHAREABLE | RF_ACTIVE);
if (!sc->irq) {
device_printf(dev, "Unable to allocate interrupt resource.\n");
error = ENXIO;
goto bad;
}
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
sc->sc_pdq = pdq_initialize(sc->mem_bst, sc->mem_bsh,
ifp->if_xname, -1,
(void *)sc, PDQ_DEFPA);
if (sc->sc_pdq == NULL) {
device_printf(dev, "Initialization failed.\n");
error = ENXIO;
goto bad;
}
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, NULL,
pdq_pci_ifintr, dev, &sc->irq_ih);
if (error) {
device_printf(dev, "Failed to setup interrupt handler.\n");
error = ENXIO;
goto bad;
}
pdq_ifattach(sc, sc->sc_pdq->pdq_hwaddr.lanaddr_bytes);
return (0);
bad:
pdq_free(dev);
return (error);
}
static int
pdq_pci_detach (dev)
device_t dev;
{
pdq_softc_t *sc;
sc = device_get_softc(dev);
pdq_ifdetach(sc);
return (0);
}
static void
pdq_pci_shutdown(device_t dev)
{
pdq_softc_t *sc;
sc = device_get_softc(dev);
pdq_hwreset(sc->sc_pdq);
return;
}
static device_method_t pdq_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pdq_pci_probe),
DEVMETHOD(device_attach, pdq_pci_attach),
DEVMETHOD(device_detach, pdq_pci_detach),
DEVMETHOD(device_shutdown, pdq_pci_shutdown),
{ 0, 0 }
};
static driver_t pdq_pci_driver = {
"fpa",
pdq_pci_methods,
sizeof(pdq_softc_t),
};
DRIVER_MODULE(fpa, pci, pdq_pci_driver, pdq_devclass, 0, 0);
MODULE_DEPEND(fpa, pci, 1, 1, 1);
MODULE_DEPEND(fpa, fddi, 1, 1, 1);
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