253 lines
6.3 KiB
C
253 lines
6.3 KiB
C
/* $NetBSD: if_ral_cardbus.c,v 1.23 2012/02/18 13:38:35 drochner 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 1.23 2012/02/18 13:38:35 drochner Exp $");
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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 <sys/bus.h>
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#include <sys/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_amrr.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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pcitag_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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};
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int ral_cardbus_match(device_t, cfdata_t, void *);
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void ral_cardbus_attach(device_t, device_t, void *);
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int ral_cardbus_detach(device_t, int);
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CFATTACH_DECL_NEW(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(device_t parent,
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cfdata_t 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(device_t parent, device_t self,
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void *aux)
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{
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struct ral_cardbus_softc *csc = device_private(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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char devinfo[256];
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bus_addr_t base;
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int error, revision;
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pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo));
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revision = PCI_REVISION(ca->ca_class);
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aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision);
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csc->sc_opns =
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(PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ?
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&ral_rt2560_opns : &ral_rt2661_opns;
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sc->sc_dev = self;
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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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/* 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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/* map control/status registers */
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error = Cardbus_mapreg_map(ct, PCI_BAR0,
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PCI_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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csc->sc_bar_val = base | PCI_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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(*csc->sc_opns->attach)(sc, PCI_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(device_t self, int flags)
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{
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struct ral_cardbus_softc *csc = device_private(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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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(ct, 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, PCI_BAR0, 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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/* 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(ct, IPL_NET,
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csc->sc_opns->intr, sc);
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if (csc->sc_ih == NULL) {
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aprint_error_dev(sc->sc_dev,
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"could not establish interrupt\n");
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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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/* unhook the interrupt handler */
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Cardbus_intr_disestablish(ct, 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_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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pcireg_t reg;
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/* program the BAR */
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Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val);
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/* enable the appropriate bits in the PCI CSR */
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reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG);
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reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE;
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Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg);
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}
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