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/* $OpenBSD: if_wi_pci.c,v 1.5 2001/06/23 01:54:48 millert Exp $ */
/*
* Copyright (c) 2001 Todd C. Miller <Todd.Miller@courtesan.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. 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. 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 ``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.
*/
/*
* 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.
*/
/*
* This is a PCI shim for the Wavelan wireless network driver.
* It works with PCI adaptors based on the PLX 9050 and PLX 9052
* PCI to "dumb bus" bridge chip. It has been tested with the
* Global Sun Technology GL24110P02 (aka Linksys WDT11) and is
* expected to work with the Global Sun GL24110P and Eumitcom WL11000P.
*
* All we do here is handle the PCI match and attach, set up an
* interrupt handler entry point, and setup the PLX chip for level
* interrupts and config index 1.
*
* The PLX 9052 provides us with multiple PCI address space mappings.
* The primary mappings at PCI registers 0x10 (mem) and 0x14 (I/O) are for
* the PLX chip itself, *NOT* the pcmcia card.
* The PLX 9052 provides 4 local address space registers: 0x18, 0x1C,
* 0x20, and 0x24. The mem and I/O spaces for the PCMCIA card are
* mapped to 0x18 and 0x1C respectively.
*
* The datasheet may be downloaded from PLX (though you do have to register)
* http://www.plxtech.com/products/toolbox/9050.htm
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/timeout.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <net/if_ieee80211.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/ic/if_wireg.h>
#include <dev/ic/if_wi_ieee.h>
#include <dev/ic/if_wivar.h>
#define WI_PCI_PLX_LOMEM 0x10 /* PLX chip membase */
#define WI_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
#define WI_PCI_LOMEM 0x18 /* ISA membase */
#define WI_PCI_LOIO 0x1C /* ISA iobase */
int wi_pci_match __P((struct device *, void *, void *));
void wi_pci_attach __P((struct device *, struct device *, void *));
int wi_intr __P((void *));
int wi_attach __P((struct wi_softc *, int));
struct cfattach wi_pci_ca = {
sizeof (struct wi_softc), wi_pci_match, wi_pci_attach
};
static const struct wi_pci_product {
pci_vendor_id_t pp_vendor;
pci_product_id_t pp_product;
} wi_pci_products[] = {
{ PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_GL24110P },
{ PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_GL24110P02 },
{ PCI_VENDOR_EUMITCOM, PCI_PRODUCT_EUMITCOM_WL11000P },
{ 0, 0 }
};
int
wi_pci_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct pci_attach_args *pa = aux;
const struct wi_pci_product *pp;
for (pp = wi_pci_products; pp->pp_product != 0; pp++) {
if (PCI_VENDOR(pa->pa_id) == pp->pp_vendor &&
PCI_PRODUCT(pa->pa_id) == pp->pp_product)
return(1);
}
return(0);
}
void
wi_pci_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct wi_softc *sc = (struct wi_softc *)self;
struct pci_attach_args *pa = aux;
pci_intr_handle_t ih;
bus_space_handle_t ioh, memh;
bus_space_tag_t iot = pa->pa_iot;
bus_space_tag_t memt = pa->pa_memt;
pci_chipset_tag_t pc = pa->pa_pc;
pcireg_t csr;
const char *intrstr;
/* Map memory and I/O registers. */
if (pci_mapreg_map(pa, WI_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
&memt, &memh, NULL, NULL, 0) != 0) {
printf(": can't map mem space\n");
return;
}
if (pci_mapreg_map(pa, WI_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
&iot, &ioh, NULL, NULL, 0) != 0) {
printf(": can't map I/O space\n");
return;
}
sc->wi_btag = iot;
sc->wi_bhandle = ioh;
/* Enable the card. */
csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MASTER_ENABLE);
/* Make sure interrupts are disabled. */
CSR_WRITE_2(sc, WI_INT_EN, 0);
CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
/* Map and establish the interrupt. */
if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
pa->pa_intrline, &ih)) {
printf(": couldn't map interrupt\n");
return;
}
intrstr = pci_intr_string(pc, ih);
sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, wi_intr, sc,
sc->sc_dev.dv_xname);
if (sc->sc_ih == NULL) {
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf(": %s", intrstr);
/*
* Setup the PLX chip for level interrupts and config index 1
* XXX - should really reset the PLX chip too.
*/
bus_space_write_1(memt, memh, WI_COR_OFFSET, WI_COR_VALUE);
wi_attach(sc, 1);
}
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