/* $OpenBSD: if_atw_cardbus.c,v 1.18 2010/03/27 21:40:13 jsg Exp $ */ /* $NetBSD: if_atw_cardbus.c,v 1.9 2004/07/23 07:07:55 dyoung Exp $ */ /*- * Copyright (c) 1999, 2000, 2003 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. This code was adapted for the ADMtek ADM8211 * by 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. */ /* * CardBus bus front-end for the ADMtek ADM8211 802.11 MAC/BBP driver. */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include #include #if NBPFILTER > 0 #include #endif #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_cardbus_softc { struct atw_softc sc_atw; /* real ADM8211 softc */ /* CardBus-specific goo. */ void *sc_ih; /* interrupt handle */ cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */ pcitag_t sc_tag; /* our CardBus tag */ int sc_csr; /* CSR bits */ bus_size_t sc_mapsize; /* the size of mapped bus space region */ int sc_cben; /* CardBus enables */ int sc_bar_reg; /* which BAR to use */ pcireg_t sc_bar_val; /* value of the BAR */ int sc_intrline; /* interrupt line */ pci_chipset_tag_t sc_pc; }; int atw_cardbus_match(struct device *, void *, void *); void atw_cardbus_attach(struct device *, struct device *, void *); int atw_cardbus_detach(struct device *, int); struct cfattach atw_cardbus_ca = { sizeof(struct atw_cardbus_softc), atw_cardbus_match, atw_cardbus_attach, atw_cardbus_detach }; void atw_cardbus_setup(struct atw_cardbus_softc *); int atw_cardbus_enable(struct atw_softc *); void atw_cardbus_disable(struct atw_softc *); void atw_cardbus_power(struct atw_softc *, int); const struct pci_matchid atw_cardbus_devices[] = { { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM8211 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CRSHPW796 }, }; int atw_cardbus_match(struct device *parent, void *match, void *aux) { return (cardbus_matchbyid((struct cardbus_attach_args *)aux, atw_cardbus_devices, sizeof(atw_cardbus_devices)/sizeof(atw_cardbus_devices[0]))); } void atw_cardbus_attach(struct device *parent, struct device *self, void *aux) { struct atw_cardbus_softc *csc = (void *)self; struct atw_softc *sc = &csc->sc_atw; struct cardbus_attach_args *ca = aux; cardbus_devfunc_t ct = ca->ca_ct; bus_addr_t adr; sc->sc_dmat = ca->ca_dmat; csc->sc_ct = ct; csc->sc_tag = ca->ca_tag; csc->sc_pc = ca->ca_pc; /* * Power management hooks. */ sc->sc_enable = atw_cardbus_enable; sc->sc_disable = atw_cardbus_disable; sc->sc_power = atw_cardbus_power; /* Get revision info. */ sc->sc_rev = PCI_REVISION(ca->ca_class); #if 0 printf(": signature %08x\n%s", pci_conf_read(ca->ca_pc, csc->sc_tag, 0x80), sc->sc_dev.dv_xname); #endif /* * Map the device. */ csc->sc_csr = PCI_COMMAND_MASTER_ENABLE; if (Cardbus_mapreg_map(ct, ATW_PCI_MMBA, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &adr, &csc->sc_mapsize) == 0) { #if 0 printf(": atw_cardbus_attach mapped %d bytes mem space\n%s", csc->sc_mapsize, sc->sc_dev.dv_xname); #endif csc->sc_cben = CARDBUS_MEM_ENABLE; csc->sc_csr |= PCI_COMMAND_MEM_ENABLE; csc->sc_bar_reg = ATW_PCI_MMBA; csc->sc_bar_val = adr | PCI_MAPREG_TYPE_MEM; } else if (Cardbus_mapreg_map(ct, ATW_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, &sc->sc_st, &sc->sc_sh, &adr, &csc->sc_mapsize) == 0) { #if 0 printf(": atw_cardbus_attach mapped %d bytes I/O space\n%s", csc->sc_mapsize, sc->sc_dev.dv_xname); #endif csc->sc_cben = CARDBUS_IO_ENABLE; csc->sc_csr |= PCI_COMMAND_IO_ENABLE; csc->sc_bar_reg = ATW_PCI_IOBA; csc->sc_bar_val = adr | PCI_MAPREG_TYPE_IO; } else { printf(": unable to map device registers\n"); return; } /* * Bring the chip out of powersave mode and initialize the * configuration registers. */ atw_cardbus_setup(csc); /* Remember which interrupt line. */ csc->sc_intrline = ca->ca_intrline; printf(": revision %d.%d: irq %d\n", (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf, csc->sc_intrline); #if 0 /* * The CardBus cards will make it to store-and-forward mode as * soon as you put them under any kind of load, so just start * out there. */ sc->sc_txthresh = 3; /* TBD name constant */ #endif /* * Finish off the attach. */ atw_attach(sc); ATW_WRITE(sc, ATW_FER, ATW_FER_INTR); /* * Power down the socket. */ Cardbus_function_disable(csc->sc_ct); } int atw_cardbus_detach(struct device *self, int flags) { struct atw_cardbus_softc *csc = (void *)self; struct atw_softc *sc = &csc->sc_atw; struct cardbus_devfunc *ct = csc->sc_ct; int rv; #if defined(DIAGNOSTIC) if (ct == NULL) panic("%s: data structure lacks", sc->sc_dev.dv_xname); #endif rv = atw_detach(sc); if (rv) return (rv); /* * Unhook the interrupt handler. */ if (csc->sc_ih != NULL) cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); /* * Release bus space and close window. */ if (csc->sc_bar_reg != 0) Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, sc->sc_st, sc->sc_sh, csc->sc_mapsize); return (0); } int atw_cardbus_enable(struct atw_softc *sc) { struct atw_cardbus_softc *csc = (void *) sc; cardbus_devfunc_t ct = csc->sc_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); /* * Set up the PCI configuration registers. */ atw_cardbus_setup(csc); /* * Map and establish the interrupt. */ csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, atw_intr, sc, sc->sc_dev.dv_xname); if (csc->sc_ih == NULL) { printf("%s: unable to establish interrupt at %d\n", sc->sc_dev.dv_xname, csc->sc_intrline); Cardbus_function_disable(csc->sc_ct); return (1); } return (0); } void atw_cardbus_disable(struct atw_softc *sc) { struct atw_cardbus_softc *csc = (void *) sc; cardbus_devfunc_t ct = csc->sc_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->sc_ih); csc->sc_ih = NULL; /* Power down the socket. */ Cardbus_function_disable(ct); } void atw_cardbus_power(struct atw_softc *sc, int why) { if (why == PWR_RESUME) atw_enable(sc); } void atw_cardbus_setup(struct atw_cardbus_softc *csc) { #ifdef notyet struct atw_softc *sc = &csc->sc_atw; #endif cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; pci_chipset_tag_t pc = csc->sc_pc; pcireg_t reg; #ifdef notyet (void)cardbus_setpowerstate(sc->sc_dev.dv_xname, ct, csc->sc_tag, PCI_PWR_D0); #endif /* Program the BAR. */ pci_conf_write(pc, csc->sc_tag, csc->sc_bar_reg, csc->sc_bar_val); /* Make sure the right access type is on the CardBus bridge. */ (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); /* Enable the appropriate bits in the PCI CSR. */ reg = pci_conf_read(pc, csc->sc_tag, PCI_COMMAND_STATUS_REG); reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE); reg |= csc->sc_csr; pci_conf_write(pc, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); /* * Make sure the latency timer is set to some reasonable * value. */ reg = pci_conf_read(pc, csc->sc_tag, PCI_BHLC_REG); if (PCI_LATTIMER(reg) < 0x20) { reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT); reg |= (0x20 << PCI_LATTIMER_SHIFT); pci_conf_write(pc, csc->sc_tag, PCI_BHLC_REG, reg); } }