OpenBSD-4.6/sys/dev/cardbus/if_ral_cardbus.c
/* $OpenBSD: if_ral_cardbus.c,v 1.14 2009/05/12 17:43:16 damien Exp $ */
/*-
* Copyright (c) 2005-2007
* Damien Bergamini <damien.bergamini@free.fr>
*
* 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 Ralink RT2560/RT2561/RT2661/RT2860 driver.
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/timeout.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <net/if.h>
#include <net/if_dl.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/ic/rt2560var.h>
#include <dev/ic/rt2661var.h>
#include <dev/ic/rt2860var.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/cardbus/cardbusvar.h>
static struct ral_opns {
int (*attach)(void *, int);
int (*detach)(void *);
int (*intr)(void *);
} ral_rt2560_opns = {
rt2560_attach,
rt2560_detach,
rt2560_intr
}, ral_rt2661_opns = {
rt2661_attach,
rt2661_detach,
rt2661_intr
}, ral_rt2860_opns = {
rt2860_attach,
rt2860_detach,
rt2860_intr
};
struct ral_cardbus_softc {
union {
struct rt2560_softc sc_rt2560;
struct rt2661_softc sc_rt2661;
struct rt2860_softc sc_rt2860;
} u;
#define sc_sc u.sc_rt2560
/* cardbus specific goo */
struct ral_opns *sc_opns;
cardbus_devfunc_t sc_ct;
cardbustag_t sc_tag;
void *sc_ih;
bus_size_t sc_mapsize;
pcireg_t sc_bar_val;
int sc_intrline;
};
int ral_cardbus_match(struct device *, void *, void *);
void ral_cardbus_attach(struct device *, struct device *, void *);
int ral_cardbus_detach(struct device *, int);
struct cfattach ral_cardbus_ca = {
sizeof (struct ral_cardbus_softc), ral_cardbus_match,
ral_cardbus_attach, ral_cardbus_detach
};
static const struct cardbus_matchid ral_cardbus_devices[] = {
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560 },
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561 },
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S },
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661 },
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2860 },
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2890 },
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2760 },
{ PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2790 },
{ PCI_VENDOR_AWT, PCI_PRODUCT_AWT_RT2890 },
{ PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_1 },
{ PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_2 },
{ PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_3 },
{ PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_4 },
{ PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_5 },
{ PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_6 },
{ PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_7 }
};
int ral_cardbus_enable(struct rt2560_softc *);
void ral_cardbus_disable(struct rt2560_softc *);
void ral_cardbus_power(struct rt2560_softc *, int);
void ral_cardbus_setup(struct ral_cardbus_softc *);
int
ral_cardbus_match(struct device *parent, void *match, void *aux)
{
return (cardbus_matchbyid((struct cardbus_attach_args *)aux,
ral_cardbus_devices, nitems(ral_cardbus_devices)));
}
void
ral_cardbus_attach(struct device *parent, struct device *self, void *aux)
{
struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self;
struct rt2560_softc *sc = &csc->sc_sc;
struct cardbus_attach_args *ca = aux;
cardbus_devfunc_t ct = ca->ca_ct;
bus_addr_t base;
int error;
if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) {
switch (CARDBUS_PRODUCT(ca->ca_id)) {
case PCI_PRODUCT_RALINK_RT2560:
csc->sc_opns = &ral_rt2560_opns;
break;
case PCI_PRODUCT_RALINK_RT2561:
case PCI_PRODUCT_RALINK_RT2561S:
case PCI_PRODUCT_RALINK_RT2661:
csc->sc_opns = &ral_rt2661_opns;
break;
case PCI_PRODUCT_RALINK_RT2860:
case PCI_PRODUCT_RALINK_RT2890:
case PCI_PRODUCT_RALINK_RT2760:
case PCI_PRODUCT_RALINK_RT2790:
csc->sc_opns = &ral_rt2860_opns;
break;
}
} else {
/* all other vendors are RT2860 only */
csc->sc_opns = &ral_rt2860_opns;
}
sc->sc_dmat = ca->ca_dmat;
csc->sc_ct = ct;
csc->sc_tag = ca->ca_tag;
csc->sc_intrline = ca->ca_intrline;
/* power management hooks */
sc->sc_enable = ral_cardbus_enable;
sc->sc_disable = ral_cardbus_disable;
sc->sc_power = ral_cardbus_power;
/* map control/status registers */
error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG,
CARDBUS_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base,
&csc->sc_mapsize);
if (error != 0) {
printf(": can't map mem space\n");
return;
}
csc->sc_bar_val = base | CARDBUS_MAPREG_TYPE_MEM;
/* set up the PCI configuration registers */
ral_cardbus_setup(csc);
printf(": irq %d", csc->sc_intrline);
(*csc->sc_opns->attach)(sc, CARDBUS_PRODUCT(ca->ca_id));
Cardbus_function_disable(ct);
}
int
ral_cardbus_detach(struct device *self, int flags)
{
struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self;
struct rt2560_softc *sc = &csc->sc_sc;
cardbus_devfunc_t ct = csc->sc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
int error;
error = (*csc->sc_opns->detach)(sc);
if (error != 0)
return error;
/* unhook the interrupt handler */
if (csc->sc_ih != NULL) {
cardbus_intr_disestablish(cc, cf, csc->sc_ih);
csc->sc_ih = NULL;
}
/* release bus space and close window */
Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_st, sc->sc_sh,
csc->sc_mapsize);
return 0;
}
int
ral_cardbus_enable(struct rt2560_softc *sc)
{
struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc;
cardbus_devfunc_t ct = csc->sc_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 */
ral_cardbus_setup(csc);
/* map and establish the interrupt handler */
csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET,
csc->sc_opns->intr, sc, sc->sc_dev.dv_xname);
if (csc->sc_ih == NULL) {
printf("%s: could not establish interrupt at %d\n",
sc->sc_dev.dv_xname, csc->sc_intrline);
Cardbus_function_disable(ct);
return 1;
}
return 0;
}
void
ral_cardbus_disable(struct rt2560_softc *sc)
{
struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc;
cardbus_devfunc_t ct = csc->sc_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->sc_ih);
csc->sc_ih = NULL;
/* power down the socket */
Cardbus_function_disable(ct);
}
void
ral_cardbus_power(struct rt2560_softc *sc, int why)
{
struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc;
if (why == PWR_RESUME) {
/* kick the PCI configuration registers */
ral_cardbus_setup(csc);
}
}
void
ral_cardbus_setup(struct ral_cardbus_softc *csc)
{
cardbus_devfunc_t ct = csc->sc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
pcireg_t reg;
/* program the BAR */
cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG,
csc->sc_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 = cardbus_conf_read(cc, cf, csc->sc_tag,
CARDBUS_COMMAND_STATUS_REG);
reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE;
cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG,
reg);
}