/* $OpenBSD: if_bwi_cardbus.c,v 1.15 2013/12/06 21:03:02 deraadt 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); 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)); }