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| -rw-r--r-- | sys/arch/sparc/dev/if_en_sbus.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/sys/arch/sparc/dev/if_en_sbus.c b/sys/arch/sparc/dev/if_en_sbus.c new file mode 100644 index 00000000000..45e1bb3bc5e --- /dev/null +++ b/sys/arch/sparc/dev/if_en_sbus.c @@ -0,0 +1,171 @@ +/* $OpenBSD: if_en_sbus.c,v 1.1 1996/06/21 15:38:40 chuck Exp $ */ + +/* + * + * Copyright (c) 1996 Charles D. Cranor + * All rights reserved. + * + * 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 Charles D. Cranor. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +/* + * + * i f _ e n _ s b u s . c + * + * author: Chuck Cranor <chuck@ccrc.wustl.edu> + * started: spring, 1996. + * + * SBUS glue for the eni155s card. + */ + +#include <sys/param.h> +#include <sys/types.h> +#include <sys/device.h> +#include <sys/mbuf.h> +#include <sys/socket.h> +#include <sys/socketvar.h> + +#include <net/if.h> + +#include <machine/autoconf.h> +#include <machine/cpu.h> + +#include <sparc/dev/sbusvar.h> + +#include <dev/ic/midwayreg.h> +#include <dev/ic/midwayvar.h> + + +/* + * local structures + */ + +struct en_sbus_softc { + /* bus independent stuff */ + struct en_softc esc; /* includes "device" structure */ + + /* sbus glue */ + struct sbusdev sc_sd; /* sbus device */ + struct intrhand sc_ih; /* interrupt vectoring */ +}; + +/* + * local defines (SBUS specific stuff) + */ + +#define EN_IPL 5 + +/* + * prototypes + */ + +static int en_sbus_match __P((struct device *, void *, void *)); +static void en_sbus_attach __P((struct device *, struct device *, void *)); + +/* + * SBUS autoconfig attachments + */ + +struct cfattach en_sbus_ca = { + sizeof(struct en_sbus_softc), en_sbus_match, en_sbus_attach, +}; + +/***********************************************************************/ + +/* + * autoconfig stuff + */ + +static int en_sbus_match(parent, match, aux) + +struct device *parent; +void *match; +void *aux; + +{ + struct cfdata *cf = match; + struct confargs *ca = aux; + register struct romaux *ra = &ca->ca_ra; + + if (strcmp("ENI-155s", ra->ra_name)) + return 0; + if (ca->ca_bustype == BUS_SBUS) + return (1); + + return 0; +} + + +static void en_sbus_attach(parent, self, aux) + +struct device *parent, *self; +void *aux; + +{ + struct en_softc *sc = (void *)self; + struct en_sbus_softc *scs = (void *)self; + struct confargs *ca = aux; + int lcv, iplcode; + + printf("\n"); + + if (CPU_ISSUN4M) { + printf("%s: sun4m DMA not supported yet\n", sc->sc_dev.dv_xname); + return; + } + + sc->en_base = (caddr_t) mapiodev(ca->ca_ra.ra_reg, 0, 4*1024*1024, + ca->ca_bustype); + + if (ca->ca_ra.ra_nintr == 1) { + sc->ipl = ca->ca_ra.ra_intr[0].int_pri; + } else { + printf("%s: claims to be at the following IPLs: ", sc->sc_dev.dv_xname); + iplcode = 0; + for (lcv = 0 ; lcv < ca->ca_ra.ra_nintr ; lcv++) { + printf("%d ", ca->ca_ra.ra_intr[lcv].int_pri); + if (EN_IPL == ca->ca_ra.ra_intr[lcv].int_pri) + iplcode = lcv; + } + if (!iplcode) { + printf("%s: can't find the IPL we want (%d)\n", sc->sc_dev.dv_xname, + EN_IPL); + return; + } + printf("\n%s: we choose IPL %d\n", sc->sc_dev.dv_xname, EN_IPL); + sc->ipl = iplcode; + } + scs->sc_ih.ih_fun = en_intr; + scs->sc_ih.ih_arg = sc; + intr_establish(EN_IPL, &scs->sc_ih); + + /* + * done SBUS specific stuff + */ + + en_attach(sc); + +} |