372fd2b92a
Simplify atw_start, atw_newstate. Synchronize access to atw_start by bracketing the call to ieee80211_next_scan in atw_next_scan with splnet()/splx().
292 lines
8.1 KiB
C
292 lines
8.1 KiB
C
/* $NetBSD: if_atw_pci.c,v 1.2 2003/10/13 08:22:19 dyoung Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998, 1999, 2000, 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
|
* NASA Ames Research Center; Charles M. Hannum; and David Young.
|
|
*
|
|
* 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 ADMtek ADM8211 802.11 MAC/BBP chip.
|
|
*
|
|
* Derived from the ``Tulip'' PCI bus front-end.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: if_atw_pci.c,v 1.2 2003/10/13 08:22:19 dyoung Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <machine/endian.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_dl.h>
|
|
#include <net/if_media.h>
|
|
#include <net/if_ether.h>
|
|
|
|
#include <net80211/ieee80211_compat.h>
|
|
#include <net80211/ieee80211_var.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <dev/ic/atwreg.h>
|
|
#include <dev/ic/atwvar.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcidevs.h>
|
|
|
|
/*
|
|
* PCI configuration space registers used by the ADM8211.
|
|
*/
|
|
#define ATW_PCI_IOBA 0x10 /* i/o mapped base */
|
|
#define ATW_PCI_MMBA 0x14 /* memory mapped base */
|
|
|
|
struct atw_pci_softc {
|
|
struct atw_softc sc_atw; /* real ADM8211 softc */
|
|
|
|
/* PCI-specific goo. */
|
|
void *sc_ih; /* interrupt handle */
|
|
|
|
pci_chipset_tag_t sc_pc; /* our PCI chipset */
|
|
pcitag_t sc_pcitag; /* our PCI tag */
|
|
};
|
|
|
|
int atw_pci_match __P((struct device *, struct cfdata *, void *));
|
|
void atw_pci_attach __P((struct device *, struct device *, void *));
|
|
|
|
CFATTACH_DECL(atw_pci, sizeof(struct atw_pci_softc),
|
|
atw_pci_match, atw_pci_attach, NULL, NULL);
|
|
|
|
const struct atw_pci_product {
|
|
u_int32_t app_vendor; /* PCI vendor ID */
|
|
u_int32_t app_product; /* PCI product ID */
|
|
const char *app_product_name;
|
|
} atw_pci_products[] = {
|
|
{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM8211,
|
|
"ADMtek ADM8211 802.11 MAC/BBP" },
|
|
|
|
{ 0, 0, NULL },
|
|
};
|
|
|
|
const struct atw_pci_product *atw_pci_lookup
|
|
__P((const struct pci_attach_args *));
|
|
|
|
const struct atw_pci_product *
|
|
atw_pci_lookup(pa)
|
|
const struct pci_attach_args *pa;
|
|
{
|
|
const struct atw_pci_product *app;
|
|
|
|
for (app = atw_pci_products;
|
|
app->app_product_name != NULL;
|
|
app++) {
|
|
if (PCI_VENDOR(pa->pa_id) == app->app_vendor &&
|
|
PCI_PRODUCT(pa->pa_id) == app->app_product)
|
|
return (app);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
int
|
|
atw_pci_match(parent, match, aux)
|
|
struct device *parent;
|
|
struct cfdata *match;
|
|
void *aux;
|
|
{
|
|
struct pci_attach_args *pa = aux;
|
|
|
|
if (atw_pci_lookup(pa) != NULL)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
atw_pci_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct atw_pci_softc *psc = (void *) self;
|
|
struct atw_softc *sc = &psc->sc_atw;
|
|
struct pci_attach_args *pa = aux;
|
|
pci_chipset_tag_t pc = pa->pa_pc;
|
|
pci_intr_handle_t ih;
|
|
const char *intrstr = NULL;
|
|
bus_space_tag_t iot, memt;
|
|
bus_space_handle_t ioh, memh;
|
|
int ioh_valid, memh_valid;
|
|
const struct atw_pci_product *app;
|
|
pcireg_t reg;
|
|
int pmreg, rev;
|
|
|
|
psc->sc_pc = pa->pa_pc;
|
|
psc->sc_pcitag = pa->pa_tag;
|
|
|
|
app = atw_pci_lookup(pa);
|
|
if (app == NULL) {
|
|
printf("\n");
|
|
panic("atw_pci_attach: impossible");
|
|
}
|
|
|
|
/*
|
|
* No power management hooks.
|
|
* XXX Maybe we should add some!
|
|
*/
|
|
sc->sc_flags |= ATWF_ENABLED;
|
|
|
|
/*
|
|
* Get revision info, and set some chip-specific variables.
|
|
*/
|
|
rev = PCI_REVISION(pa->pa_class);
|
|
printf(": %s, pass %d.%d\n", app->app_product_name,
|
|
(rev >> 4) & 0xf, rev & 0xf);
|
|
|
|
/*
|
|
* Check to see if the device is in power-save mode, and
|
|
* being it out if necessary.
|
|
*
|
|
* XXX This code comes almost verbatim from if_tlp_pci.c. I do
|
|
* not understand it. Tulip clears the "sleep mode" bit in the
|
|
* CFDA register, first. There is an equivalent (?) register at the
|
|
* same place in the ADM8211, but the docs do not assign its bits
|
|
* any meanings. -dcy
|
|
*/
|
|
if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) {
|
|
reg = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR);
|
|
switch (reg & PCI_PMCSR_STATE_MASK) {
|
|
case PCI_PMCSR_STATE_D1:
|
|
case PCI_PMCSR_STATE_D2:
|
|
printf(": waking up from power state D%d\n%s",
|
|
reg & PCI_PMCSR_STATE_MASK, sc->sc_dev.dv_xname);
|
|
pci_conf_write(pc, pa->pa_tag, pmreg + PCI_PMCSR,
|
|
(reg & ~PCI_PMCSR_STATE_MASK) |
|
|
PCI_PMCSR_STATE_D0);
|
|
break;
|
|
case PCI_PMCSR_STATE_D3:
|
|
/*
|
|
* The card has lost all configuration data in
|
|
* this state, so punt.
|
|
*/
|
|
printf(": unable to wake up from power state D3, "
|
|
"reboot required.\n");
|
|
pci_conf_write(pc, pa->pa_tag, pmreg + PCI_PMCSR,
|
|
(reg & ~PCI_PMCSR_STATE_MASK) |
|
|
PCI_PMCSR_STATE_D0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Map the device.
|
|
*/
|
|
ioh_valid = (pci_mapreg_map(pa, ATW_PCI_IOBA,
|
|
PCI_MAPREG_TYPE_IO, 0,
|
|
&iot, &ioh, NULL, NULL) == 0);
|
|
memh_valid = (pci_mapreg_map(pa, ATW_PCI_MMBA,
|
|
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
|
|
&memt, &memh, NULL, NULL) == 0);
|
|
|
|
if (memh_valid) {
|
|
sc->sc_st = memt;
|
|
sc->sc_sh = memh;
|
|
} else if (ioh_valid) {
|
|
sc->sc_st = iot;
|
|
sc->sc_sh = ioh;
|
|
} else {
|
|
printf(": unable to map device registers\n");
|
|
return;
|
|
}
|
|
|
|
sc->sc_dmat = pa->pa_dmat;
|
|
|
|
/*
|
|
* Make sure bus mastering is enabled.
|
|
*/
|
|
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);
|
|
|
|
/*
|
|
* Get the cacheline size.
|
|
*/
|
|
sc->sc_cacheline = PCI_CACHELINE(pci_conf_read(pc, pa->pa_tag,
|
|
PCI_BHLC_REG));
|
|
|
|
/*
|
|
* Get PCI data moving command info.
|
|
*/
|
|
if (pa->pa_flags & PCI_FLAGS_MRL_OKAY) /* read line */
|
|
sc->sc_flags |= ATWF_MRL;
|
|
if (pa->pa_flags & PCI_FLAGS_MRM_OKAY) /* read multiple */
|
|
sc->sc_flags |= ATWF_MRM;
|
|
if (pa->pa_flags & PCI_FLAGS_MWI_OKAY) /* write invalidate */
|
|
sc->sc_flags |= ATWF_MWI;
|
|
|
|
/*
|
|
* Map and establish our interrupt.
|
|
*/
|
|
if (pci_intr_map(pa, &ih)) {
|
|
printf("%s: unable to map interrupt\n",
|
|
sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
intrstr = pci_intr_string(pc, ih);
|
|
psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, atw_intr, sc);
|
|
if (psc->sc_ih == NULL) {
|
|
printf("%s: unable to 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);
|
|
|
|
/*
|
|
* Finish off the attach.
|
|
*/
|
|
atw_attach(sc);
|
|
}
|
|
|