288 lines
7.2 KiB
C
288 lines
7.2 KiB
C
/* $NetBSD: if_ral_cardbus.c,v 1.8 2006/11/16 01:32:48 christos Exp $ */
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/* $OpenBSD: if_ral_cardbus.c,v 1.6 2006/01/09 20:03:31 damien Exp $ */
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/*-
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* Copyright (c) 2005, 2006
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* CardBus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_ral_cardbus.c,v 1.8 2006/11/16 01:32:48 christos Exp $");
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/callout.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_ether.h>
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#include <netinet/in.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_rssadapt.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <dev/ic/rt2560var.h>
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#include <dev/ic/rt2661var.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/cardbus/cardbusvar.h>
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static struct ral_opns {
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int (*attach)(void *, int);
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int (*detach)(void *);
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int (*intr)(void *);
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} ral_rt2560_opns = {
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rt2560_attach,
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rt2560_detach,
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rt2560_intr
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}, ral_rt2661_opns = {
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rt2661_attach,
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rt2661_detach,
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rt2661_intr
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};
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struct ral_cardbus_softc {
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union {
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struct rt2560_softc sc_rt2560;
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struct rt2661_softc sc_rt2661;
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} u;
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#define sc_sc u.sc_rt2560
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/* cardbus specific goo */
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struct ral_opns *sc_opns;
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cardbus_devfunc_t sc_ct;
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cardbustag_t sc_tag;
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void *sc_ih;
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bus_size_t sc_mapsize;
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pcireg_t sc_bar_val;
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int sc_intrline;
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};
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int ral_cardbus_match(struct device *, struct cfdata *, void *);
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void ral_cardbus_attach(struct device *, struct device *, void *);
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int ral_cardbus_detach(struct device *, int);
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CFATTACH_DECL(ral_cardbus, sizeof (struct ral_cardbus_softc),
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ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL);
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int ral_cardbus_enable(struct rt2560_softc *);
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void ral_cardbus_disable(struct rt2560_softc *);
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void ral_cardbus_power(struct rt2560_softc *, int);
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void ral_cardbus_setup(struct ral_cardbus_softc *);
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int
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ral_cardbus_match(struct device *parent,
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struct cfdata *cfdata, void *aux)
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{
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struct cardbus_attach_args *ca = aux;
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if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) {
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switch (PCI_PRODUCT(ca->ca_id)) {
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case PCI_PRODUCT_RALINK_RT2560:
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case PCI_PRODUCT_RALINK_RT2561:
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case PCI_PRODUCT_RALINK_RT2561S:
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case PCI_PRODUCT_RALINK_RT2661:
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return 1;
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default:
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return 0;
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}
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}
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return 0;
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}
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void
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ral_cardbus_attach(struct device *parent, struct device *self,
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void *aux)
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{
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struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self;
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struct rt2560_softc *sc = &csc->sc_sc;
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struct cardbus_attach_args *ca = aux;
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cardbus_devfunc_t ct = ca->ca_ct;
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bus_addr_t base;
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int error;
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csc->sc_opns =
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(CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ?
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&ral_rt2560_opns : &ral_rt2661_opns;
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sc->sc_dmat = ca->ca_dmat;
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csc->sc_ct = ct;
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csc->sc_tag = ca->ca_tag;
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csc->sc_intrline = ca->ca_intrline;
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/* power management hooks */
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sc->sc_enable = ral_cardbus_enable;
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sc->sc_disable = ral_cardbus_disable;
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sc->sc_power = ral_cardbus_power;
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/* map control/status registers */
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error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG,
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CARDBUS_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base,
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&csc->sc_mapsize);
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if (error != 0) {
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printf(": could not map memory space\n");
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return;
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}
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#if rbus
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#else
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(*cf->cardbus_mem_open)(cc, 0, base, base + csc->sc_mapsize);
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#endif
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csc->sc_bar_val = base | CARDBUS_MAPREG_TYPE_MEM;
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/* set up the PCI configuration registers */
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ral_cardbus_setup(csc);
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printf(": irq %d\n", csc->sc_intrline);
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(*csc->sc_opns->attach)(sc, CARDBUS_PRODUCT(ca->ca_id));
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Cardbus_function_disable(ct);
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}
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int
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ral_cardbus_detach(struct device *self, int flags)
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{
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struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self;
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struct rt2560_softc *sc = &csc->sc_sc;
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cardbus_devfunc_t ct = csc->sc_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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int error;
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error = (*csc->sc_opns->detach)(sc);
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if (error != 0)
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return error;
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/* unhook the interrupt handler */
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if (csc->sc_ih != NULL) {
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cardbus_intr_disestablish(cc, cf, csc->sc_ih);
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csc->sc_ih = NULL;
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}
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/* release bus space and close window */
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Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_st, sc->sc_sh,
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csc->sc_mapsize);
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return 0;
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}
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int
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ral_cardbus_enable(struct rt2560_softc *sc)
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{
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struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc;
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cardbus_devfunc_t ct = csc->sc_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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/* power on the socket */
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Cardbus_function_enable(ct);
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/* setup the PCI configuration registers */
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ral_cardbus_setup(csc);
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/* map and establish the interrupt handler */
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csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET,
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csc->sc_opns->intr, sc);
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if (csc->sc_ih == NULL) {
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printf("%s: could not establish interrupt at %d\n",
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sc->sc_dev.dv_xname, csc->sc_intrline);
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Cardbus_function_disable(ct);
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return 1;
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}
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return 0;
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}
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void
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ral_cardbus_disable(struct rt2560_softc *sc)
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{
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struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc;
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cardbus_devfunc_t ct = csc->sc_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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/* unhook the interrupt handler */
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cardbus_intr_disestablish(cc, cf, csc->sc_ih);
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csc->sc_ih = NULL;
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/* power down the socket */
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Cardbus_function_disable(ct);
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}
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void
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ral_cardbus_power(struct rt2560_softc *sc, int why)
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{
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switch (why) {
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case PWR_RESUME:
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ral_cardbus_enable(sc);
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break;
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case PWR_SUSPEND:
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ral_cardbus_disable(sc);
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break;
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}
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return;
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}
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void
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ral_cardbus_setup(struct ral_cardbus_softc *csc)
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{
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cardbus_devfunc_t ct = csc->sc_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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pcireg_t reg;
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/* program the BAR */
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cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG,
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csc->sc_bar_val);
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/* make sure the right access type is on the cardbus bridge */
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(*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
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(*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
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/* enable the appropriate bits in the PCI CSR */
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reg = cardbus_conf_read(cc, cf, csc->sc_tag,
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CARDBUS_COMMAND_STATUS_REG);
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reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE;
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cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG,
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reg);
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}
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