264 lines
7.1 KiB
C
264 lines
7.1 KiB
C
/* $NetBSD: if_wi_pci.c,v 1.2 2001/11/13 07:48:45 lukem Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Hideaki Imaizumi <hiddy@sfc.wide.ad.jp>
|
|
* and Ichiro FUKUHARA (ichiro@ichiro.org).
|
|
*
|
|
* 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 the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* PCI bus front-end for the Intersil PCI WaveLan.
|
|
* Works with Prism2.5 Mini-PCI wavelan.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: if_wi_pci.c,v 1.2 2001/11/13 07:48:45 lukem Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/syslog.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/device.h>
|
|
#include <sys/callout.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_ether.h>
|
|
#include <net/if_media.h>
|
|
#include <net/if_ieee80211.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcidevs.h>
|
|
|
|
#include <dev/ic/wi_ieee.h>
|
|
#include <dev/ic/wireg.h>
|
|
#include <dev/ic/wivar.h>
|
|
|
|
struct wi_pci_softc {
|
|
struct wi_softc psc_wi; /* real "wi" softc */
|
|
|
|
/* PCI-specific goo */
|
|
pci_intr_handle_t psc_ih;
|
|
struct pci_attach_args *psc_pa;
|
|
|
|
void *sc_powerhook; /* power hook descriptor */
|
|
};
|
|
|
|
static int wi_pci_match __P((struct device *, struct cfdata *, void *));
|
|
static void wi_pci_attach __P((struct device *, struct device *, void *));
|
|
static int wi_pci_enable __P((struct wi_softc *));
|
|
static void wi_pci_disable __P((struct wi_softc *));
|
|
static void wi_pci_powerhook __P((int, void *));
|
|
|
|
static const struct wi_pci_product
|
|
*wi_pci_lookup __P((struct pci_attach_args *));
|
|
|
|
struct cfattach wi_pci_ca = {
|
|
sizeof(struct wi_pci_softc), wi_pci_match, wi_pci_attach
|
|
};
|
|
|
|
const struct wi_pci_product {
|
|
pci_vendor_id_t wpp_vendor; /* vendor ID */
|
|
pci_product_id_t wpp_product; /* product ID */
|
|
const char *wpp_name; /* product name */
|
|
} wi_pci_products[] = {
|
|
{ PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_MINI_PCI_WLAN,
|
|
"Intersil Prism2.5" },
|
|
{ 0, 0,
|
|
NULL},
|
|
};
|
|
|
|
static int
|
|
wi_pci_enable(sc)
|
|
struct wi_softc *sc;
|
|
{
|
|
struct wi_pci_softc *psc = (struct wi_pci_softc *)sc;
|
|
|
|
/* establish the interrupt. */
|
|
sc->sc_ih = pci_intr_establish(psc->psc_pa->pa_pc,
|
|
psc->psc_ih, IPL_NET, wi_intr, sc);
|
|
if (sc->sc_ih == NULL) {
|
|
printf("%s: couldn't establish interrupt\n",
|
|
sc->sc_dev.dv_xname);
|
|
return (EIO);
|
|
}
|
|
sc->sc_pci = 1;
|
|
|
|
/* reset HFA3842 MAC core */
|
|
wi_pci_reset(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
wi_pci_disable(sc)
|
|
struct wi_softc *sc;
|
|
{
|
|
struct wi_pci_softc *psc = (struct wi_pci_softc *)sc;
|
|
|
|
pci_intr_disestablish(psc->psc_pa->pa_pc, sc->sc_ih);
|
|
}
|
|
|
|
static const struct wi_pci_product *
|
|
wi_pci_lookup(pa)
|
|
struct pci_attach_args *pa;
|
|
{
|
|
const struct wi_pci_product *wpp;
|
|
|
|
for (wpp = wi_pci_products; wpp->wpp_name != NULL; wpp++) {
|
|
if (PCI_VENDOR(pa->pa_id) == wpp->wpp_vendor &&
|
|
PCI_PRODUCT(pa->pa_id) == wpp->wpp_product)
|
|
return (wpp);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
wi_pci_match(parent, match, aux)
|
|
struct device *parent;
|
|
struct cfdata *match;
|
|
void *aux;
|
|
{
|
|
struct pci_attach_args *pa = aux;
|
|
|
|
if (wi_pci_lookup(pa) != NULL)
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
wi_pci_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct wi_pci_softc *psc = (struct wi_pci_softc *)self;
|
|
struct wi_softc *sc = &psc->psc_wi;
|
|
struct pci_attach_args *pa = aux;
|
|
pci_chipset_tag_t pc = pa->pa_pc;
|
|
const char *intrstr;
|
|
const struct wi_pci_product *wpp;
|
|
pci_intr_handle_t ih;
|
|
bus_space_tag_t memt;
|
|
bus_space_handle_t memh;
|
|
int memh_valid;
|
|
bus_addr_t busbase;
|
|
bus_size_t bussize;
|
|
|
|
psc->psc_pa = pa;
|
|
|
|
memh_valid = !pci_mapreg_map(pa, WI_PCI_CBMA,
|
|
PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
|
|
&memt, &memh, &busbase, &bussize);
|
|
|
|
if(memh_valid){
|
|
sc->sc_iot = memt;
|
|
sc->sc_ioh = memh;
|
|
}
|
|
else {
|
|
printf(": unable to map device registers\n");
|
|
return;
|
|
}
|
|
|
|
wpp = wi_pci_lookup(pa);
|
|
if (wpp == NULL) {
|
|
printf("\n");
|
|
panic("wi_pci_attach: impossible");
|
|
}
|
|
|
|
printf(": %s Wireless Lan\n", wpp->wpp_name);
|
|
|
|
sc->sc_pci = 1;
|
|
sc->sc_enabled = 1;
|
|
sc->sc_enable = wi_pci_enable;
|
|
sc->sc_disable = wi_pci_disable;
|
|
|
|
/* Enable the card. */
|
|
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
|
|
pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
|
|
PCI_COMMAND_MASTER_ENABLE);
|
|
|
|
|
|
/* Map and establish the interrupt. */
|
|
if (pci_intr_map(pa, &ih)) {
|
|
printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
intrstr = pci_intr_string(pc, ih);
|
|
|
|
psc->psc_ih = ih;
|
|
sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, wi_intr, sc);
|
|
if (sc->sc_ih == NULL) {
|
|
printf("%s: couldn't establish interrupt",
|
|
sc->sc_dev.dv_xname);
|
|
if (intrstr != NULL)
|
|
printf(" at %s", intrstr);
|
|
printf("\n");
|
|
return;
|
|
}
|
|
|
|
printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
|
|
|
|
/* reset HFA3842 MAC core */
|
|
wi_pci_reset(sc);
|
|
|
|
sc->sc_ifp = &sc->sc_ethercom.ec_if;
|
|
if (wi_attach(sc) != 0) {
|
|
printf("%s: failed to attach controller\n",
|
|
sc->sc_dev.dv_xname);
|
|
pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
|
|
return;
|
|
}
|
|
|
|
/* Add a suspend hook to restore PCI config state */
|
|
psc->sc_powerhook = powerhook_establish(wi_pci_powerhook, psc);
|
|
if (psc->sc_powerhook == NULL)
|
|
printf ("%s: WARNING: unable to establish pci power hook\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
|
|
static void
|
|
wi_pci_powerhook(why, arg)
|
|
int why;
|
|
void *arg;
|
|
{
|
|
struct wi_pci_softc *psc = arg;
|
|
struct wi_softc *sc = &psc->psc_wi;
|
|
|
|
wi_power(sc, why);
|
|
}
|