259 lines
7.1 KiB
C
259 lines
7.1 KiB
C
/* $NetBSD: if_awi_pcmcia.c,v 1.45 2012/10/27 17:18:36 chs Exp $ */
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/*-
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* Copyright (c) 1999, 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Bill Sommerfeld
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* PCMCIA attachment for BayStack 650 802.11FH PCMCIA card,
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* based on the AMD 79c930 802.11 controller chip.
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*
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* This attachment can probably be trivially adapted for other FH and
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* DS cards based on the same chipset.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_awi_pcmcia.c,v 1.45 2012/10/27 17:18:36 chs Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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#include <sys/select.h>
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#include <sys/device.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_ether.h>
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#include <net/if_media.h>
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#include <net80211/ieee80211_netbsd.h>
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#include <net80211/ieee80211_var.h>
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#include <sys/cpu.h>
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#include <sys/bus.h>
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#include <sys/intr.h>
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#include <dev/ic/am79c930reg.h>
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#include <dev/ic/am79c930var.h>
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#include <dev/ic/awireg.h>
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#include <dev/ic/awivar.h>
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#include <dev/pcmcia/pcmciareg.h>
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#include <dev/pcmcia/pcmciavar.h>
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#include <dev/pcmcia/pcmciadevs.h>
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static int awi_pcmcia_match(device_t, cfdata_t, void *);
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static int awi_pcmcia_validate_config(struct pcmcia_config_entry *);
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static void awi_pcmcia_attach(device_t, device_t, void *);
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static int awi_pcmcia_detach(device_t, int);
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static int awi_pcmcia_enable(struct awi_softc *);
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static void awi_pcmcia_disable(struct awi_softc *);
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struct awi_pcmcia_softc {
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struct awi_softc sc_awi; /* real "awi" softc */
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/* PCMCIA-specific goo */
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struct pcmcia_function *sc_pf; /* our PCMCIA function */
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void *sc_ih; /* interrupt handler */
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int sc_state;
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#define AWI_PCMCIA_ATTACHED 3
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};
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CFATTACH_DECL_NEW(awi_pcmcia, sizeof(struct awi_pcmcia_softc),
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awi_pcmcia_match, awi_pcmcia_attach, awi_pcmcia_detach, awi_activate);
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static const struct pcmcia_product awi_pcmcia_products[] = {
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{ PCMCIA_VENDOR_BAY, PCMCIA_PRODUCT_BAY_STACK_650,
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PCMCIA_CIS_BAY_STACK_650 },
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{ PCMCIA_VENDOR_BAY, PCMCIA_PRODUCT_BAY_STACK_660,
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PCMCIA_CIS_BAY_STACK_660 },
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{ PCMCIA_VENDOR_BAY, PCMCIA_PRODUCT_BAY_SURFER_PRO,
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PCMCIA_CIS_BAY_SURFER_PRO },
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{ PCMCIA_VENDOR_AMD, PCMCIA_PRODUCT_AMD_AM79C930,
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PCMCIA_CIS_AMD_AM79C930 },
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{ PCMCIA_VENDOR_ICOM, PCMCIA_PRODUCT_ICOM_SL200,
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PCMCIA_CIS_ICOM_SL200 },
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{ PCMCIA_VENDOR_NOKIA, PCMCIA_PRODUCT_NOKIA_C020_WLAN,
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PCMCIA_CIS_NOKIA_C020_WLAN },
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{ PCMCIA_VENDOR_FARALLON, PCMCIA_PRODUCT_FARALLON_SKYLINE,
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PCMCIA_CIS_FARALLON_SKYLINE },
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};
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static const size_t awi_pcmcia_nproducts =
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sizeof(awi_pcmcia_products) / sizeof(awi_pcmcia_products[0]);
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static int
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awi_pcmcia_enable(struct awi_softc *sc)
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{
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struct awi_pcmcia_softc *psc = (struct awi_pcmcia_softc *)sc;
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struct pcmcia_function *pf = psc->sc_pf;
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int error;
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/* establish the interrupt. */
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psc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, awi_intr, sc);
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if (!psc->sc_ih)
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return (EIO);
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error = pcmcia_function_enable(pf);
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if (error) {
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pcmcia_intr_disestablish(pf, psc->sc_ih);
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psc->sc_ih = 0;
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}
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return (error);
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}
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static void
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awi_pcmcia_disable(struct awi_softc *sc)
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{
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struct awi_pcmcia_softc *psc = (struct awi_pcmcia_softc *)sc;
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struct pcmcia_function *pf = psc->sc_pf;
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pcmcia_function_disable(pf);
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pcmcia_intr_disestablish(pf, psc->sc_ih);
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psc->sc_ih = 0;
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}
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static int
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awi_pcmcia_match(device_t parent, cfdata_t match,
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void *aux)
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{
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struct pcmcia_attach_args *pa = aux;
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if (pcmcia_product_lookup(pa, awi_pcmcia_products, awi_pcmcia_nproducts,
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sizeof(awi_pcmcia_products[0]), NULL))
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return (1);
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return (0);
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}
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static int
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awi_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
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{
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if (cfe->iftype != PCMCIA_IFTYPE_IO ||
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cfe->num_iospace < 1 ||
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cfe->iospace[0].length < AM79C930_IO_SIZE)
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return (EINVAL);
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if (cfe->num_memspace < 1) {
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cfe->memspace[0].length = AM79C930_MEM_SIZE;
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cfe->memspace[0].cardaddr = 0;
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cfe->memspace[0].hostaddr = 0;
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} else if (cfe->memspace[0].length < AM79C930_MEM_SIZE)
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return (EINVAL);
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return (0);
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}
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static void
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awi_pcmcia_attach(device_t parent, device_t self,
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void *aux)
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{
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struct awi_pcmcia_softc *psc = device_private(self);
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struct awi_softc *sc = &psc->sc_awi;
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struct pcmcia_attach_args *pa = aux;
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struct pcmcia_config_entry *cfe;
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int error;
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sc->sc_dev = self;
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psc->sc_pf = pa->pf;
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error = pcmcia_function_configure(pa->pf, awi_pcmcia_validate_config);
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if (error) {
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aprint_error_dev(self, "configure failed, error=%d\n",
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error);
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return;
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}
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cfe = pa->pf->cfe;
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sc->sc_chip.sc_bustype = AM79C930_BUS_PCMCIA;
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sc->sc_chip.sc_iot = cfe->iospace[0].handle.iot;
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sc->sc_chip.sc_ioh = cfe->iospace[0].handle.ioh;
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if (cfe->num_memspace > 0) {
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sc->sc_chip.sc_memt = cfe->memspace[0].handle.memt;
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sc->sc_chip.sc_memh = cfe->memspace[0].handle.memh;
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am79c930_chip_init(&sc->sc_chip, 1);
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} else
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am79c930_chip_init(&sc->sc_chip, 0);
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error = awi_pcmcia_enable(sc);
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if (error)
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goto fail;
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sc->sc_enabled = 1;
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awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN);
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if (memcmp(sc->sc_banner, "PCnetMobile:", 12))
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goto fail2;
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sc->sc_enable = awi_pcmcia_enable;
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sc->sc_disable = awi_pcmcia_disable;
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sc->sc_cansleep = 1;
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if (awi_attach(sc) != 0) {
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aprint_error_dev(self, "failed to attach controller\n");
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goto fail2;
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}
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sc->sc_enabled = 0;
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awi_pcmcia_disable(sc);
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psc->sc_state = AWI_PCMCIA_ATTACHED;
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return;
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fail2:
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sc->sc_enabled = 0;
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awi_pcmcia_disable(sc);
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fail:
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pcmcia_function_unconfigure(pa->pf);
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}
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static int
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awi_pcmcia_detach(device_t self, int flags)
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{
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struct awi_pcmcia_softc *psc = device_private(self);
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int error;
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if (psc->sc_state != AWI_PCMCIA_ATTACHED)
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return (0);
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error = awi_detach(&psc->sc_awi);
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if (error)
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return (error);
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pcmcia_function_unconfigure(psc->sc_pf);
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return (0);
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}
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