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/* $OpenBSD: if_bcw_pci.c,v 1.7 2006/12/08 01:28:40 mglocker Exp $ */
/*
* Copyright (c) 2006 Jon Simola <jsimola@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* PCI shim for Broadcom BCM43xx Wireless network chipsets (broadcom.com)
* SiliconBackplane is technology from Sonics, Inc.(sonicsinc.com)
*/
/* standard includes, probably some extras */
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/timeout.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <machine/endian.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
//#include <netinet/in_systm.h>
//#include <netinet/in_var.h>
//#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.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/cardbus/cardbusvar.h>
#include <dev/ic/bcwreg.h>
#include <dev/ic/bcwvar.h>
#include <uvm/uvm_extern.h>
const struct pci_matchid bcw_pci_devices[] = {
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4303 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4306 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4306_2 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4307 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4309 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4311 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4312 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4318 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4319 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4322 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM43XG }
};
struct bcw_pci_softc {
struct bcw_softc psc_bcw; /* Real softc */
pci_intr_handle_t psc_ih; /* interrupt handle */
void *psc_intrcookie;
pci_chipset_tag_t psc_pc; /* our PCI chipset */
pcitag_t psc_pcitag; /* our PCI tag */
};
int bcw_pci_match(struct device *, void *, void *);
int bcw_pci_enable(struct bcw_softc *sc);
void bcw_pci_disable(struct bcw_softc *sc);
void bcw_pci_attach(struct device *, struct device *, void *);
void bcw_pci_conf_write(struct bcw_softc *, u_int32_t, u_int32_t);
u_int32_t bcw_pci_conf_read(struct bcw_softc *, u_int32_t);
struct cfattach bcw_pci_ca = {
sizeof(struct bcw_pci_softc), bcw_pci_match, bcw_pci_attach
};
int
bcw_pci_match(struct device *parent, void *match, void *aux)
{
return pci_matchbyid((struct pci_attach_args *)aux, bcw_pci_devices,
sizeof(bcw_pci_devices) / sizeof(bcw_pci_devices[0]));
}
int
bcw_pci_enable(struct bcw_softc *sc)
{
struct bcw_pci_softc *psc = (void *)sc;
/* Establish PCI interrupt */
psc->psc_intrcookie = pci_intr_establish(psc->psc_pc, psc->psc_ih,
IPL_NET, bcw_intr, sc, sc->sc_dev.dv_xname);
if(psc->psc_intrcookie == NULL) {
printf("%s: unable to establish interrupt\n",
sc->sc_dev.dv_xname);
return (1);
}
return (0);
}
void
bcw_pci_disable(struct bcw_softc *sc)
{
struct bcw_pci_softc *psc = (void *)sc;
/* Remove PCI interrupt */
pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie);
psc->psc_intrcookie = NULL;
}
void
bcw_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct bcw_pci_softc *psc = (void *) self;
struct bcw_softc *sc = &psc->psc_bcw;
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
pci_chipset_tag_t pc = pa->pa_pc;
pcireg_t memtype;
bus_addr_t memaddr;
bus_size_t memsize;
int pmreg;
pcireg_t pmode;
psc->psc_pc = pa->pa_pc;
psc->psc_pcitag = pa->pa_tag;
sc->sc_pa.pa_pc = pa->pa_pc;
sc->sc_pa.pa_tag = pa->pa_tag;
/* Get it out of power save mode if needed. */
if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) {
pmode = pci_conf_read(pc, pa->pa_tag, pmreg + 4) & 0x3;
if (pmode == 3) {
/*
* The card has lost all configuration data in
* this state, so punt.
*/
printf("%s: unable to wake up from power state D3\n",
sc->sc_dev.dv_xname);
return;
}
if (pmode != 0) {
printf("%s: waking up from power state D%d\n",
sc->sc_dev.dv_xname, pmode);
pci_conf_write(pc, pa->pa_tag, pmreg + 4, 0);
}
}
/*
* Map control/status registers.
*/
/* Copied from pre-abstraction, via if_bce.c */
memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BCW_PCI_BAR0);
switch (memtype) {
case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
if (pci_mapreg_map(pa, BCW_PCI_BAR0, memtype, 0, &sc->sc_iot,
&sc->sc_ioh, &memaddr, &memsize, 0) == 0)
break;
default:
printf("%s: unable to find mem space\n",
sc->sc_dev.dv_xname);
return;
}
sc->sc_dmat = pa->pa_dmat;
/* Map the PCI interrupt */
if (pci_intr_map(pa, &psc->psc_ih)) {
printf("%s: couldn't map interrupt\n",
sc->sc_dev.dv_xname);
return;
}
sc->bcw_intrstr = pci_intr_string(pc, psc->psc_ih);
psc->psc_intrcookie = pci_intr_establish(pc, psc->psc_ih, IPL_NET,
bcw_intr, sc, sc->sc_dev.dv_xname);
if (psc->psc_intrcookie == NULL) {
printf("%s: couldn't establish interrupt",
sc->sc_dev.dv_xname);
if (sc->bcw_intrstr != NULL)
printf(" at %s", sc->bcw_intrstr);
printf("\n");
return;
}
printf(": %s\n", sc->bcw_intrstr);
sc->sc_enable = bcw_pci_enable;
sc->sc_disable = bcw_pci_disable;
sc->sc_conf_write = bcw_pci_conf_write;
sc->sc_conf_read = bcw_pci_conf_read;
/*
* Get some PCI based info into the softc
*/
sc->sc_chiprev = PCI_REVISION(pa->pa_class);
sc->sc_prodid = PCI_PRODUCT(pa->pa_id);
/*
* Start the card up while we're in PCI land
*/
/* Turn the Crystal On */
bcw_powercontrol_crystal_on(sc);
/*
* Clear PCI_STATUS_TARGET_TARGET_ABORT, Docs and Linux call it
* PCI_STATUS_SIG_TARGET_ABORT - should use pci_conf_read/write?
*/
pci_conf_write(pa->pa_pc, pa->pa_tag,
PCI_COMMAND_STATUS_REG,
pci_conf_read(pa->pa_pc, pa->pa_tag,
PCI_COMMAND_STATUS_REG)
& ~PCI_STATUS_TARGET_TARGET_ABORT);
/*
* Finish the attach
*/
bcw_attach(sc);
}
void
bcw_pci_conf_write(struct bcw_softc *sc, u_int32_t reg, u_int32_t val)
{
pci_conf_write(sc->sc_pa.pa_pc, sc->sc_pa.pa_tag, reg, val);
}
u_int32_t
bcw_pci_conf_read(struct bcw_softc *sc, u_int32_t reg)
{
return pci_conf_read(sc->sc_pa.pa_pc, sc->sc_pa.pa_tag, reg);
}
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