FreeBSD-5.3/sys/dev/wi/if_wi_pci.c
/*
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. 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. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
* 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.
*
* $FreeBSD: src/sys/dev/wi/if_wi_pci.c,v 1.22 2004/03/17 17:50:48 njl Exp $
*/
/*
* Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD.
*
* Written by Bill Paul <wpaul@ctr.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/clock.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/wi/if_wavelan_ieee.h>
#include <dev/wi/if_wireg.h>
#include <dev/wi/if_wivar.h>
static int wi_pci_probe(device_t);
static int wi_pci_attach(device_t);
static int wi_pci_suspend(device_t);
static int wi_pci_resume(device_t);
static device_method_t wi_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, wi_pci_probe),
DEVMETHOD(device_attach, wi_pci_attach),
DEVMETHOD(device_detach, wi_detach),
DEVMETHOD(device_shutdown, wi_shutdown),
DEVMETHOD(device_suspend, wi_pci_suspend),
DEVMETHOD(device_resume, wi_pci_resume),
{ 0, 0 }
};
static driver_t wi_pci_driver = {
"wi",
wi_pci_methods,
sizeof(struct wi_softc)
};
static struct {
unsigned int vendor,device;
int bus_type;
char *desc;
} pci_ids[] = {
/* Sorted by description */
{0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"},
{0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"},
{0x1260, 0x3872, WI_BUS_PCI_NATIVE, "Intersil Prism3"},
{0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"},
{0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"},
{0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"},
{0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"},
{0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"},
{0x10b5, 0x9050, WI_BUS_PCI_PLX, "SMC 2602W"},
{0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"},
{0x4033, 0x7001, WI_BUS_PCI_PLX, "Addtron AWA-100 PCI"},
{0, 0, 0, NULL}
};
DRIVER_MODULE(wi, pci, wi_pci_driver, wi_devclass, 0, 0);
MODULE_DEPEND(wi, pci, 1, 1, 1);
MODULE_DEPEND(wi, wlan, 1, 1, 1);
static int
wi_pci_probe(dev)
device_t dev;
{
struct wi_softc *sc;
int i;
sc = device_get_softc(dev);
for(i=0; pci_ids[i].vendor != 0; i++) {
if ((pci_get_vendor(dev) == pci_ids[i].vendor) &&
(pci_get_device(dev) == pci_ids[i].device)) {
sc->wi_bus_type = pci_ids[i].bus_type;
device_set_desc(dev, pci_ids[i].desc);
return (0);
}
}
return(ENXIO);
}
static int
wi_pci_attach(device_t dev)
{
struct wi_softc *sc;
u_int32_t command, wanted;
u_int16_t reg;
int error;
int timeout;
sc = device_get_softc(dev);
command = pci_read_config(dev, PCIR_COMMAND, 4);
wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN;
command |= wanted;
pci_write_config(dev, PCIR_COMMAND, command, 4);
command = pci_read_config(dev, PCIR_COMMAND, 4);
if ((command & wanted) != wanted) {
device_printf(dev, "wi_pci_attach() failed to enable pci!\n");
return (ENXIO);
}
if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
error = wi_alloc(dev, WI_PCI_IORES);
if (error)
return (error);
/* Make sure interrupts are disabled. */
CSR_WRITE_2(sc, WI_INT_EN, 0);
CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
/* We have to do a magic PLX poke to enable interrupts */
sc->local_rid = WI_PCI_LOCALRES;
sc->local = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&sc->local_rid, RF_ACTIVE);
sc->wi_localtag = rman_get_bustag(sc->local);
sc->wi_localhandle = rman_get_bushandle(sc->local);
command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle,
WI_LOCAL_INTCSR);
command |= WI_LOCAL_INTEN;
bus_space_write_4(sc->wi_localtag, sc->wi_localhandle,
WI_LOCAL_INTCSR, command);
bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid,
sc->local);
sc->local = NULL;
sc->mem_rid = WI_PCI_MEMRES;
sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&sc->mem_rid, RF_ACTIVE);
if (sc->mem == NULL) {
device_printf(dev, "couldn't allocate memory\n");
wi_free(dev);
return (ENXIO);
}
sc->wi_bmemtag = rman_get_bustag(sc->mem);
sc->wi_bmemhandle = rman_get_bushandle(sc->mem);
/*
* From Linux driver:
* Write COR to enable PC card
* This is a subset of the protocol that the pccard bus code
* would do.
*/
CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE);
reg = CSM_READ_1(sc, WI_COR_OFFSET);
if (reg != WI_COR_VALUE) {
device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) "
"wanted %d, got %d\n", WI_COR_VALUE, reg);
wi_free(dev);
return (ENXIO);
}
} else {
error = wi_alloc(dev, WI_PCI_LMEMRES);
if (error)
return (error);
CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0080);
DELAY(250000);
CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0000);
DELAY(500000);
timeout=2000000;
while ((--timeout > 0) &&
(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
DELAY(10);
if (timeout == 0) {
device_printf(dev, "couldn't reset prism2.5 core.\n");
wi_free(dev);
return(ENXIO);
}
}
CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC);
reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF);
if (reg != WI_PRISM2STA_MAGIC) {
device_printf(dev,
"CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) "
"wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg);
wi_free(dev);
return (ENXIO);
}
error = wi_attach(dev);
if (error != 0)
wi_free(dev);
return (error);
}
static int
wi_pci_suspend(device_t dev)
{
struct wi_softc *sc;
struct ifnet *ifp;
sc = device_get_softc(dev);
ifp = &sc->sc_if;
wi_stop(ifp, 1);
return (0);
}
static int
wi_pci_resume(device_t dev)
{
struct wi_softc *sc;
struct ifnet *ifp;
sc = device_get_softc(dev);
ifp = &sc->sc_if;
if (sc->wi_bus_type != WI_BUS_PCI_NATIVE)
return (0);
if (ifp->if_flags & IFF_UP) {
ifp->if_init(ifp->if_softc);
if (ifp->if_flags & IFF_RUNNING)
ifp->if_start(ifp);
}
return (0);
}