236 lines
6.8 KiB
C
236 lines
6.8 KiB
C
/*
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* Copyright (c) 1997, 1998, 1999
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* Bill Paul <wpaul@ctr.columbia.edu>. 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, this list of conditions and the following 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD.
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*
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* Written by Bill Paul <wpaul@ctr.columbia.edu>
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* Electrical Engineering Department
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* Columbia University, New York City
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <machine/clock.h>
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#include <sys/rman.h>
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#include <pci/pcireg.h>
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#include <pci/pcivar.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_ieee80211.h>
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#include <dev/wi/if_wavelan_ieee.h>
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#include <dev/wi/wi_hostap.h>
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#include <dev/wi/if_wivar.h>
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#include <dev/wi/if_wireg.h>
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static int wi_pci_probe(device_t);
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static int wi_pci_attach(device_t);
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static device_method_t wi_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, wi_pci_probe),
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DEVMETHOD(device_attach, wi_pci_attach),
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DEVMETHOD(device_detach, wi_generic_detach),
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DEVMETHOD(device_shutdown, wi_shutdown),
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{ 0, 0 }
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};
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static driver_t wi_pci_driver = {
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"wi",
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wi_pci_methods,
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sizeof(struct wi_softc)
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};
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static struct {
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unsigned int vendor,device;
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int bus_type;
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char *desc;
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} pci_ids[] = {
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/* Sorted by description */
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{0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"},
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{0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"},
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{0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"},
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{0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"},
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{0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"},
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{0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"},
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{0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"},
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{0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"},
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{0, 0, 0, NULL}
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};
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DRIVER_MODULE(if_wi, pci, wi_pci_driver, wi_devclass, 0, 0);
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static int
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wi_pci_probe(dev)
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device_t dev;
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{
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struct wi_softc *sc;
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int i;
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sc = device_get_softc(dev);
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for(i=0; pci_ids[i].vendor != 0; i++) {
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if ((pci_get_vendor(dev) == pci_ids[i].vendor) &&
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(pci_get_device(dev) == pci_ids[i].device)) {
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sc->wi_bus_type = pci_ids[i].bus_type;
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device_set_desc(dev, pci_ids[i].desc);
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return (0);
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}
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}
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return(ENXIO);
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}
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static int
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wi_pci_attach(device_t dev)
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{
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struct wi_softc *sc;
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u_int32_t command, wanted;
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u_int16_t reg;
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int error;
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int timeout;
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sc = device_get_softc(dev);
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command = pci_read_config(dev, PCIR_COMMAND, 4);
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wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN;
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command |= wanted;
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pci_write_config(dev, PCIR_COMMAND, command, 4);
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command = pci_read_config(dev, PCIR_COMMAND, 4);
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if ((command & wanted) != wanted) {
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device_printf(dev, "wi_pci_attach() failed to enable pci!\n");
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return (ENXIO);
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}
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if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
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error = wi_alloc(dev, WI_PCI_IORES);
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if (error)
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return (error);
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/* Make sure interrupts are disabled. */
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CSR_WRITE_2(sc, WI_INT_EN, 0);
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CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
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/* We have to do a magic PLX poke to enable interrupts */
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sc->local_rid = WI_PCI_LOCALRES;
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sc->local = bus_alloc_resource(dev, SYS_RES_IOPORT,
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&sc->local_rid, 0, ~0, 1, RF_ACTIVE);
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sc->wi_localtag = rman_get_bustag(sc->local);
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sc->wi_localhandle = rman_get_bushandle(sc->local);
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command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle,
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WI_LOCAL_INTCSR);
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command |= WI_LOCAL_INTEN;
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bus_space_write_4(sc->wi_localtag, sc->wi_localhandle,
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WI_LOCAL_INTCSR, command);
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bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid,
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sc->local);
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sc->local = NULL;
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sc->mem_rid = WI_PCI_MEMRES;
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sc->mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid,
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0, ~0, 1, RF_ACTIVE);
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if (sc->mem == NULL) {
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device_printf(dev, "couldn't allocate memory\n");
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wi_free(dev);
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return (ENXIO);
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}
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sc->wi_bmemtag = rman_get_bustag(sc->mem);
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sc->wi_bmemhandle = rman_get_bushandle(sc->mem);
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/*
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* From Linux driver:
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* Write COR to enable PC card
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* This is a subset of the protocol that the pccard bus code
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* would do.
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*/
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CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE);
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reg = CSM_READ_1(sc, WI_COR_OFFSET);
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if (reg != WI_COR_VALUE) {
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device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) "
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"wanted %d, got %d\n", WI_COR_VALUE, reg);
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wi_free(dev);
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return (ENXIO);
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}
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} else {
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error = wi_alloc(dev, WI_PCI_LMEMRES);
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if (error)
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return (error);
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CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0080);
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DELAY(250000);
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CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0000);
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DELAY(500000);
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timeout=2000000;
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while ((--timeout > 0) &&
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(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
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DELAY(10);
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if (timeout == 0) {
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device_printf(dev, "couldn't reset prism2.5 core.\n");
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wi_free(dev);
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return(ENXIO);
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}
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}
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CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC);
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reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF);
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if (reg != WI_PRISM2STA_MAGIC) {
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device_printf(dev,
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"CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) "
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"wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg);
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wi_free(dev);
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return (ENXIO);
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}
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error = wi_generic_attach(dev);
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if (error != 0)
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return (error);
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return (0);
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}
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