/* $NetBSD: if_wi_pci.c,v 1.2 2001/11/13 07:48:45 lukem Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Hideaki Imaizumi * and Ichiro FUKUHARA (ichiro@ichiro.org). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * PCI bus front-end for the Intersil PCI WaveLan. * Works with Prism2.5 Mini-PCI wavelan. */ #include __KERNEL_RCSID(0, "$NetBSD: if_wi_pci.c,v 1.2 2001/11/13 07:48:45 lukem Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct wi_pci_softc { struct wi_softc psc_wi; /* real "wi" softc */ /* PCI-specific goo */ pci_intr_handle_t psc_ih; struct pci_attach_args *psc_pa; void *sc_powerhook; /* power hook descriptor */ }; static int wi_pci_match __P((struct device *, struct cfdata *, void *)); static void wi_pci_attach __P((struct device *, struct device *, void *)); static int wi_pci_enable __P((struct wi_softc *)); static void wi_pci_disable __P((struct wi_softc *)); static void wi_pci_powerhook __P((int, void *)); static const struct wi_pci_product *wi_pci_lookup __P((struct pci_attach_args *)); struct cfattach wi_pci_ca = { sizeof(struct wi_pci_softc), wi_pci_match, wi_pci_attach }; const struct wi_pci_product { pci_vendor_id_t wpp_vendor; /* vendor ID */ pci_product_id_t wpp_product; /* product ID */ const char *wpp_name; /* product name */ } wi_pci_products[] = { { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_MINI_PCI_WLAN, "Intersil Prism2.5" }, { 0, 0, NULL}, }; static int wi_pci_enable(sc) struct wi_softc *sc; { struct wi_pci_softc *psc = (struct wi_pci_softc *)sc; /* establish the interrupt. */ sc->sc_ih = pci_intr_establish(psc->psc_pa->pa_pc, psc->psc_ih, IPL_NET, wi_intr, sc); if (sc->sc_ih == NULL) { printf("%s: couldn't establish interrupt\n", sc->sc_dev.dv_xname); return (EIO); } sc->sc_pci = 1; /* reset HFA3842 MAC core */ wi_pci_reset(sc); return (0); } static void wi_pci_disable(sc) struct wi_softc *sc; { struct wi_pci_softc *psc = (struct wi_pci_softc *)sc; pci_intr_disestablish(psc->psc_pa->pa_pc, sc->sc_ih); } static const struct wi_pci_product * wi_pci_lookup(pa) struct pci_attach_args *pa; { const struct wi_pci_product *wpp; for (wpp = wi_pci_products; wpp->wpp_name != NULL; wpp++) { if (PCI_VENDOR(pa->pa_id) == wpp->wpp_vendor && PCI_PRODUCT(pa->pa_id) == wpp->wpp_product) return (wpp); } return (NULL); } static int wi_pci_match(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct pci_attach_args *pa = aux; if (wi_pci_lookup(pa) != NULL) return (1); return (0); } static void wi_pci_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct wi_pci_softc *psc = (struct wi_pci_softc *)self; struct wi_softc *sc = &psc->psc_wi; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; const char *intrstr; const struct wi_pci_product *wpp; pci_intr_handle_t ih; bus_space_tag_t memt; bus_space_handle_t memh; int memh_valid; bus_addr_t busbase; bus_size_t bussize; psc->psc_pa = pa; memh_valid = !pci_mapreg_map(pa, WI_PCI_CBMA, PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, &busbase, &bussize); if(memh_valid){ sc->sc_iot = memt; sc->sc_ioh = memh; } else { printf(": unable to map device registers\n"); return; } wpp = wi_pci_lookup(pa); if (wpp == NULL) { printf("\n"); panic("wi_pci_attach: impossible"); } printf(": %s Wireless Lan\n", wpp->wpp_name); sc->sc_pci = 1; sc->sc_enabled = 1; sc->sc_enable = wi_pci_enable; sc->sc_disable = wi_pci_disable; /* Enable the card. */ pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | PCI_COMMAND_MASTER_ENABLE); /* Map and establish the interrupt. */ if (pci_intr_map(pa, &ih)) { printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); return; } intrstr = pci_intr_string(pc, ih); psc->psc_ih = ih; sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, wi_intr, sc); if (sc->sc_ih == NULL) { printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); /* reset HFA3842 MAC core */ wi_pci_reset(sc); sc->sc_ifp = &sc->sc_ethercom.ec_if; if (wi_attach(sc) != 0) { printf("%s: failed to attach controller\n", sc->sc_dev.dv_xname); pci_intr_disestablish(pa->pa_pc, sc->sc_ih); return; } /* Add a suspend hook to restore PCI config state */ psc->sc_powerhook = powerhook_establish(wi_pci_powerhook, psc); if (psc->sc_powerhook == NULL) printf ("%s: WARNING: unable to establish pci power hook\n", sc->sc_dev.dv_xname); } static void wi_pci_powerhook(why, arg) int why; void *arg; { struct wi_pci_softc *psc = arg; struct wi_softc *sc = &psc->psc_wi; wi_power(sc, why); }