/* $OpenBSD: if_atw_pci.c,v 1.20 2024/05/24 06:02:53 jsg Exp $ */ /* $NetBSD: if_atw_pci.c,v 1.7 2004/07/23 07:07:55 dyoung Exp $ */ /*- * Copyright (c) 1998, 1999, 2000, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center; Charles M. Hannum; and David Young. * * 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. * * 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 ADMtek ADM8211 802.11 MAC/BBP chip. * * Derived from the ``Tulip'' PCI bus front-end. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * PCI configuration space registers used by the ADM8211. */ #define ATW_PCI_IOBA 0x10 /* i/o mapped base */ #define ATW_PCI_MMBA 0x14 /* memory mapped base */ struct atw_pci_softc { struct atw_softc psc_atw; /* real ADM8211 softc */ pci_intr_handle_t psc_ih; /* interrupt handle */ void *psc_intrcookie; pci_chipset_tag_t psc_pc; /* our PCI chipset */ pcitag_t psc_pcitag; /* our PCI tag */ }; int atw_pci_match(struct device *, void *, void *); void atw_pci_attach(struct device *, struct device *, void *); int atw_pci_detach(struct device *, int); const struct cfattach atw_pci_ca = { sizeof (struct atw_softc), atw_pci_match, atw_pci_attach, atw_pci_detach, atw_activate }; const struct pci_matchid atw_pci_devices[] = { { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM8211 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CRSHPW796 } }; int atw_pci_match(struct device *parent, void *match, void *aux) { return (pci_matchbyid((struct pci_attach_args *)aux, atw_pci_devices, nitems(atw_pci_devices))); } static int atw_pci_enable(struct atw_softc *sc) { struct atw_pci_softc *psc = (void *)sc; /* Establish the interrupt. */ psc->psc_intrcookie = pci_intr_establish(psc->psc_pc, psc->psc_ih, IPL_NET, atw_intr, sc, sc->sc_dev.dv_xname); if (psc->psc_intrcookie == NULL) { printf("%s: unable to establish interrupt\n", sc->sc_dev.dv_xname); return (1); } return (0); } static void atw_pci_disable(struct atw_softc *sc) { struct atw_pci_softc *psc = (void *)sc; /* Unhook the interrupt handler. */ pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie); psc->psc_intrcookie = NULL; } void atw_pci_attach(struct device *parent, struct device *self, void *aux) { struct atw_pci_softc *psc = (void *) self; struct atw_softc *sc = &psc->psc_atw; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; const char *intrstr = NULL; bus_space_tag_t iot, memt; bus_space_handle_t ioh, memh; bus_size_t iosize, memsize; int ioh_valid, memh_valid; psc->psc_pc = pa->pa_pc; psc->psc_pcitag = pa->pa_tag; /* * No power management hooks. * XXX Maybe we should add some! */ sc->sc_flags |= ATWF_ENABLED; /* * Get revision info, and set some chip-specific variables. */ sc->sc_rev = PCI_REVISION(pa->pa_class); /* * Check to see if the device is in power-save mode, and * being it out if necessary. * * XXX This code comes almost verbatim from if_tlp_pci.c. I do * not understand it. Tulip clears the "sleep mode" bit in the * CFDA register, first. There is an equivalent (?) register at the * same place in the ADM8211, but the docs do not assign its bits * any meanings. -dcy */ pci_set_powerstate(pc, pa->pa_tag, PCI_PMCSR_STATE_D0); /* * Map the device. */ ioh_valid = (pci_mapreg_map(pa, ATW_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, &iosize, 0) == 0); memh_valid = (pci_mapreg_map(pa, ATW_PCI_MMBA, PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &memsize, 0) == 0); if (memh_valid) { sc->sc_st = memt; sc->sc_sh = memh; sc->sc_mapsize = memsize; } else if (ioh_valid) { sc->sc_st = iot; sc->sc_sh = ioh; sc->sc_mapsize = iosize; } else { printf(": unable to map device registers\n"); return; } sc->sc_dmat = pa->pa_dmat; /* * Get the cacheline size. */ sc->sc_cacheline = PCI_CACHELINE(pci_conf_read(pc, pa->pa_tag, PCI_BHLC_REG)); /* * Get PCI data moving command info. */ if (pa->pa_flags & PCI_FLAGS_MRL_OKAY) /* read line */ sc->sc_flags |= ATWF_MRL; if (pa->pa_flags & PCI_FLAGS_MRM_OKAY) /* read multiple */ sc->sc_flags |= ATWF_MRM; if (pa->pa_flags & PCI_FLAGS_MWI_OKAY) /* write invalidate */ sc->sc_flags |= ATWF_MWI; /* * Map and establish our interrupt. */ if (pci_intr_map(pa, &psc->psc_ih)) { printf(": unable to map interrupt\n"); return; } intrstr = pci_intr_string(pc, psc->psc_ih); psc->psc_intrcookie = pci_intr_establish(pc, psc->psc_ih, IPL_NET, atw_intr, sc, sc->sc_dev.dv_xname); if (psc->psc_intrcookie == NULL) { printf(": unable to establish interrupt"); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } printf(": %s\n", intrstr); sc->sc_enable = atw_pci_enable; sc->sc_disable = atw_pci_disable; /* * Finish off the attach. */ atw_attach(sc); } int atw_pci_detach(struct device *self, int flags) { struct atw_pci_softc *psc = (void *)self; struct atw_softc *sc = &psc->psc_atw; int rv; rv = atw_detach(sc); if (rv) return (rv); if (psc->psc_intrcookie != NULL) pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie); bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_mapsize); return (0); }