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/* $OpenBSD: if_bwi_cardbus.c,v 1.16 2022/04/06 18:59:28 naddy Exp $ */
/*
* Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org>
* Copyright (c) 2006 Claudio Jeker <claudio@openbsd.org>
*
* 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.
*/
/*
* Cardbus front-end for the Broadcom AirForce
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/timeout.h>
#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_amrr.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/cardbus/cardbusvar.h>
#include <dev/ic/bwivar.h>
struct bwi_cardbus_softc {
struct bwi_softc csc_bwi;
/* cardbus specific goo */
cardbus_devfunc_t csc_ct;
pcitag_t csc_tag;
void *csc_ih;
bus_size_t csc_mapsize;
pcireg_t csc_bar_val;
int csc_intrline;
pci_chipset_tag_t csc_pc;
};
int bwi_cardbus_match(struct device *, void *, void*);
void bwi_cardbus_attach(struct device *, struct device *, void *);
int bwi_cardbus_detach(struct device *, int);
void bwi_cardbus_setup(struct bwi_cardbus_softc *);
int bwi_cardbus_enable(struct bwi_softc *);
void bwi_cardbus_disable(struct bwi_softc *);
void bwi_cardbus_conf_write(void *, uint32_t, uint32_t);
uint32_t bwi_cardbus_conf_read(void *, uint32_t);
const struct cfattach bwi_cardbus_ca = {
sizeof (struct bwi_cardbus_softc), bwi_cardbus_match,
bwi_cardbus_attach, bwi_cardbus_detach
};
static const struct pci_matchid bwi_cardbus_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_BCM4318 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4319 },
{ PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM43XG }
};
int
bwi_cardbus_match(struct device *parent, void *match, void *aux)
{
return (cardbus_matchbyid(aux, bwi_cardbus_devices,
sizeof (bwi_cardbus_devices) / sizeof (bwi_cardbus_devices[0])));
}
void
bwi_cardbus_attach(struct device *parent, struct device *self, void *aux)
{
struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self;
struct cardbus_attach_args *ca = aux;
struct bwi_softc *sc = &csc->csc_bwi;
cardbus_devfunc_t ct = ca->ca_ct;
pcireg_t reg;
bus_addr_t base;
int error;
sc->sc_dmat = ca->ca_dmat;
csc->csc_ct = ct;
csc->csc_tag = ca->ca_tag;
csc->csc_intrline = ca->ca_intrline;
csc->csc_pc = ca->ca_pc;
/* power management hooks */
sc->sc_enable = bwi_cardbus_enable;
sc->sc_disable = bwi_cardbus_disable;
//sc->sc_power = bwi_cardbus_power;
/* map control/status registers */
error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG,
PCI_MAPREG_TYPE_MEM, 0, &sc->sc_mem_bt,
&sc->sc_mem_bh, &base, &csc->csc_mapsize);
if (error != 0) {
printf(": can't map mem space\n");
return;
}
csc->csc_bar_val = base | PCI_MAPREG_TYPE_MEM;
/* set up the PCI configuration registers */
bwi_cardbus_setup(csc);
printf(": irq %d", csc->csc_intrline);
/* we need to access Cardbus config space from the driver */
sc->sc_conf_read = bwi_cardbus_conf_read;
sc->sc_conf_write = bwi_cardbus_conf_write;
reg = (sc->sc_conf_read)(sc, PCI_SUBSYS_ID_REG);
sc->sc_pci_revid = PCI_REVISION(ca->ca_class);
sc->sc_pci_did = PCI_PRODUCT(ca->ca_id);
sc->sc_pci_subvid = PCI_VENDOR(reg);
sc->sc_pci_subdid = PCI_PRODUCT(reg);
error = bwi_attach(sc);
if (error != 0)
bwi_cardbus_detach(&sc->sc_dev, 0);
Cardbus_function_disable(ct);
}
int
bwi_cardbus_detach(struct device *self, int flags)
{
struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self;
struct bwi_softc *sc = &csc->csc_bwi;
cardbus_devfunc_t ct = csc->csc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
int error;
error = bwi_detach(sc);
if (error != 0)
return (error);
/* unhook the interrupt handler */
if (csc->csc_ih != NULL) {
cardbus_intr_disestablish(cc, cf, csc->csc_ih);
csc->csc_ih = NULL;
}
/* release bus space and close window */
Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_mem_bt,
sc->sc_mem_bh, csc->csc_mapsize);
return (0);
}
void
bwi_cardbus_setup(struct bwi_cardbus_softc *csc)
{
cardbus_devfunc_t ct = csc->csc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
pci_chipset_tag_t pc = csc->csc_pc;
cardbus_function_tag_t cf = ct->ct_cf;
pcireg_t reg;
/* program the BAR */
pci_conf_write(pc, csc->csc_tag, CARDBUS_BASE0_REG,
csc->csc_bar_val);
/* make sure the right access type is on the cardbus bridge */
(*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
(*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
/* enable the appropriate bits in the PCI CSR */
reg = pci_conf_read(pc, csc->csc_tag,
PCI_COMMAND_STATUS_REG);
reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE;
pci_conf_write(pc, csc->csc_tag, PCI_COMMAND_STATUS_REG,
reg);
}
int
bwi_cardbus_enable(struct bwi_softc *sc)
{
struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc;
cardbus_devfunc_t ct = csc->csc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
/* power on the socket */
Cardbus_function_enable(ct);
/* setup the PCI configuration registers */
bwi_cardbus_setup(csc);
/* map and establish the interrupt handler */
csc->csc_ih = cardbus_intr_establish(cc, cf, csc->csc_intrline, IPL_NET,
bwi_intr, sc, sc->sc_dev.dv_xname);
if (csc->csc_ih == NULL) {
printf("%s: could not establish interrupt at %d\n",
sc->sc_dev.dv_xname, csc->csc_intrline);
Cardbus_function_disable(ct);
return (1);
}
return (0);
}
void
bwi_cardbus_disable(struct bwi_softc *sc)
{
struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc;
cardbus_devfunc_t ct = csc->csc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
/* unhook the interrupt handler */
cardbus_intr_disestablish(cc, cf, csc->csc_ih);
csc->csc_ih = NULL;
/* power down the socket */
Cardbus_function_disable(ct);
}
void
bwi_cardbus_conf_write(void *self, uint32_t reg, uint32_t val)
{
struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self;
pci_chipset_tag_t pc = csc->csc_pc;
pci_conf_write(pc, csc->csc_tag, reg, val);
}
uint32_t
bwi_cardbus_conf_read(void *self, uint32_t reg)
{
struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self;
pci_chipset_tag_t pc = csc->csc_pc;
return (pci_conf_read(pc, csc->csc_tag, reg));
}
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