diff options
Diffstat (limited to 'sys/arch/mvme88k/dev/vsdma.c')
| -rw-r--r-- | sys/arch/mvme88k/dev/vsdma.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/sys/arch/mvme88k/dev/vsdma.c b/sys/arch/mvme88k/dev/vsdma.c new file mode 100644 index 00000000000..c8a3186d0ab --- /dev/null +++ b/sys/arch/mvme88k/dev/vsdma.c @@ -0,0 +1,197 @@ +/* $OpenBSD: vsdma.c,v 1.1 1999/05/29 04:41:44 smurph Exp $ */ +/* + * Copyright (c) 1999 Steve Murphree, Jr. + * 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 the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + * + * @(#)vsdma.c + */ + +/* + * MVME328 scsi adaptor driver + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <scsi/scsi_all.h> +#include <scsi/scsiconf.h> +#include <machine/autoconf.h> + +#if defined(MVME187) +#include <machine/board.h> +#include <mvme88k/dev/vsreg.h> +#include <mvme88k/dev/vsvar.h> +#include <mvme88k/dev/vme.h> +#include "machine/mmu.h" +#else +#include <mvme68k/dev/vsreg.h> +#include <mvme68k/dev/vsvar.h> +#include <mvme68k/dev/vme.h> +#endif /* defined(MVME187) */ + +int vsmatch __P((struct device *, void *, void *)); +void vsattach __P((struct device *, struct device *, void *)); +int vsprint __P((void *auxp, char *)); +void vs_initialize __P((struct vs_softc *)); +int vs_intr __P((struct vs_softc *)); +int vs_nintr __P((struct vs_softc *)); +int vs_eintr __P((struct vs_softc *)); + +struct scsi_adapter vs_scsiswitch = { + vs_scsicmd, + vs_minphys, + 0, /* no lun support */ + 0, /* no lun support */ +}; + +struct scsi_device vs_scsidev = { + NULL, /* use default error handler */ + NULL, /* do not have a start function */ + NULL, /* have no async handler */ + NULL, /* Use default done routine */ +}; + +struct cfattach vs_ca = { + sizeof(struct vs_softc), vsmatch, vsattach, +}; + +struct cfdriver vs_cd = { + NULL, "vs", DV_DULL, 0 +}; + +int +vsmatch(pdp, vcf, args) + struct device *pdp; + void *vcf, *args; +{ + struct cfdata *cf = vcf; + struct confargs *ca = args; + if (!badvaddr(ca->ca_vaddr, 1)) { + if (ca->ca_vec & 0x03) { + printf("vs: bad vector 0x%x\n", ca->ca_vec); + return (0); + } + return(1); + } else { + return (0); + } +} + +void +vsattach(parent, self, auxp) + struct device *parent, *self; + void *auxp; +{ + struct vs_softc *sc = (struct vs_softc *)self; + struct confargs *ca = auxp; + struct vsreg * rp; + int tmp; + extern int cpuspeed; + + sc->sc_vsreg = rp = ca->ca_vaddr; + + sc->sc_ipl = ca->ca_ipl; + sc->sc_nvec = ca->ca_vec + 0; + sc->sc_evec = ca->ca_vec + 1; + sc->sc_link.adapter_softc = sc; + sc->sc_link.adapter_target = 7; + sc->sc_link.adapter = &vs_scsiswitch; + sc->sc_link.device = &vs_scsidev; + sc->sc_link.openings = 1; + + sc->sc_ih_n.ih_fn = vs_nintr; + sc->sc_ih_n.ih_arg = sc; + sc->sc_ih_n.ih_ipl = ca->ca_ipl; + + + sc->sc_ih_e.ih_fn = vs_eintr; + sc->sc_ih_e.ih_arg = sc; + sc->sc_ih_e.ih_ipl = ca->ca_ipl; + + vs_initialize(sc); + + vmeintr_establish(sc->sc_nvec, &sc->sc_ih_n); + vmeintr_establish(sc->sc_evec, &sc->sc_ih_e); + evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt_n); + evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt_e); + + /* + * attach all scsi units on us, watching for boot device + * (see dk_establish). + */ + tmp = bootpart; + if (ca->ca_paddr != bootaddr) + bootpart = -1; /* invalid flag to dk_establish */ + config_found(self, &sc->sc_link, scsiprint); + bootpart = tmp; /* restore old value */ +} + +/* + * print diag if pnp is NULL else just extra + */ +int +vsprint(auxp, pnp) + void *auxp; + char *pnp; +{ + if (pnp == NULL) + return (UNCONF); + return (QUIET); +} + +/* normal interrupt function */ +int +vs_nintr(sc) + struct vs_softc *sc; +{ +#ifdef SDEBUG + printf("Normal Interrupt!!!\n"); +#endif + vs_intr(sc); + sc->sc_intrcnt_n.ev_count++; + return (1); +} + +/* error interrupt function */ +int +vs_eintr(sc) + struct vs_softc *sc; +{ +#ifdef SDEBUG + printf("Error Interrupt!!!\n"); +#endif + vs_intr(sc); + sc->sc_intrcnt_e.ev_count++; + return (1); +} + + |