diff options
Diffstat (limited to 'sys/arch/mvme88k/dev/sshdma.c')
| -rw-r--r-- | sys/arch/mvme88k/dev/sshdma.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/sys/arch/mvme88k/dev/sshdma.c b/sys/arch/mvme88k/dev/sshdma.c deleted file mode 100644 index 5254ab41824..00000000000 --- a/sys/arch/mvme88k/dev/sshdma.c +++ /dev/null @@ -1,252 +0,0 @@ -/* $OpenBSD: sshdma.c,v 1.13 2003/10/05 20:27:48 miod Exp $ */ - -/* - * Copyright (c) 1996 Nivas Madhur - * Copyright (c) 1995 Theo de Raadt - * Copyright (c) 1994 Michael L. Hitch - * Copyright (c) 1982, 1990 The Regents of the University of California. - * 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. 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. - * - * @(#)dma.c - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/device.h> - -#include <uvm/uvm_extern.h> -#include <uvm/uvm_pmap.h> - -#include <machine/autoconf.h> -#include <machine/board.h> -#include <machine/mmu.h> -#include <machine/pmap.h> - -#include <scsi/scsi_all.h> -#include <scsi/scsiconf.h> - -#include <mvme88k/dev/sshreg.h> -#include <mvme88k/dev/sshvar.h> - -#include "pcctwo.h" -#if NPCCTWO > 0 -#include <mvme88k/dev/pcctwofunc.h> -#include <mvme88k/dev/pcctworeg.h> -#endif - -int afscmatch(struct device *, void *, void *); -void afscattach(struct device *, struct device *, void *); - -int afscprint(void *auxp, char *); -int sshintr(struct ssh_softc *); -int afsc_dmaintr(void *); -void sshinitialize(struct ssh_softc *); - -struct scsi_adapter afsc_scsiswitch = { - ssh_scsicmd, - ssh_minphys, - 0, /* no lun support */ - 0, /* no lun support */ -}; - -struct scsi_device afsc_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 ssh_ca = { - sizeof(struct ssh_softc), afscmatch, afscattach, -}; - -struct cfdriver ssh_cd = { - NULL, "ssh", DV_DULL, 0 -}; - -int -afscmatch(pdp, vcf, args) - struct device *pdp; - void *vcf, *args; -{ - struct confargs *ca = args; - - if (badvaddr((vaddr_t)IIOV(ca->ca_vaddr), 4)) { - return(0); - } - - return (1); -} - -void -afscattach(parent, self, auxp) - struct device *parent, *self; - void *auxp; -{ - struct ssh_softc *sc = (struct ssh_softc *)self; - struct confargs *ca = auxp; - ssh_regmap_p rp; - int tmp; - extern int cpuspeed; - - sc->sc_sshp = rp = ca->ca_vaddr; - - /* - * ssh uses sc_clock_freq to define the dcntl & ctest7 reg values - * (was 0x0221, but i added SSH_CTEST7_SC0 for snooping control) - * XXX does the clock frequency change for the 33MHz processors? - */ - sc->sc_clock_freq = cpuspeed * 2; - sc->sc_dcntl = SSH_DCNTL_EA; -/*X*/ if (sc->sc_clock_freq <= 25) -/*X*/ sc->sc_dcntl |= (2 << 6); -/*X*/ else if (sc->sc_clock_freq <= 37) -/*X*/ sc->sc_dcntl |= (1 << 6); -/*X*/ else if (sc->sc_clock_freq <= 50) -/*X*/ sc->sc_dcntl |= (0 << 6); -/*X*/ else -/*X*/ sc->sc_dcntl |= (3 << 6); - - sc->sc_ctest0 = SSH_CTEST0_BTD | SSH_CTEST0_EAN; - - /* - * MVME187 doesn't implement snooping... - */ - sc->sc_ctest7 = SSH_CTEST7_TT1; - - sc->sc_link.adapter_softc = sc; - sc->sc_link.adapter_target = 7; /* XXXX should ask ROM */ - sc->sc_link.adapter = &afsc_scsiswitch; - sc->sc_link.device = &afsc_scsidev; - sc->sc_link.openings = 1; - - sc->sc_ih.ih_fn = afsc_dmaintr; - sc->sc_ih.ih_arg = sc; - sc->sc_ih.ih_wantframe = 0; - sc->sc_ih.ih_ipl = ca->ca_ipl; - - sshinitialize(sc); - - switch (ca->ca_bustype) { -#if NPCCTWO > 0 - case BUS_PCCTWO: - { - /* - * Disable caching for the softc. Actually, I want - * to disable cache for acb structures, but they are - * part of softc, and I am disabling the entire softc - * just in case. - */ - - struct pcctworeg *pcc2 = (struct pcctworeg *)ca->ca_master; - - pmap_cache_ctrl(pmap_kernel(), trunc_page((vaddr_t)sc), - round_page((vaddr_t)sc + sizeof(*sc)), CACHE_INH); - - pcctwointr_establish(PCC2V_NCR, &sc->sc_ih); - /* enable interrupts at ca_ipl */ - pcc2->pcc2_ncrirq = ca->ca_ipl | PCC2_IRQ_IEN; - break; - } -#endif - } - - evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt); - - /* - * 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 -afscprint(auxp, pnp) - void *auxp; - char *pnp; -{ - if (pnp == NULL) - return (UNCONF); - return (QUIET); -} - -int -afsc_dmaintr(arg) - void *arg; -{ - struct ssh_softc *sc = arg; - - ssh_regmap_p rp; - u_char istat; - - rp = sc->sc_sshp; - istat = rp->ssh_istat; - if ((istat & (SSH_ISTAT_SIP | SSH_ISTAT_DIP)) == 0) - return (0); - if ((rp->ssh_sien | rp->ssh_dien) == 0) - return (0); /* no interrupts enabled */ - - /* - * 53c710 manual recommends reading dstat and sstat0 at least - * 12 clk cycles apart if reading as bytes (which is what - * pcc2 permits). Stick in a 1us delay between accessing dstat and - * sstat0 below. - * - * save interrupt status, DMA status, and SCSI status 0 - * (may need to deal with stacked interrupts?) - */ - sc->sc_istat = istat; - if (istat & SSH_ISTAT_SIP) { - sc->sc_sstat0 = rp->ssh_sstat0; - } - if (istat & SSH_ISTAT_DIP) { - delay(3); - sc->sc_dstat = rp->ssh_dstat; - } - sshintr(sc); - sc->sc_intrcnt.ev_count++; - return (1); -} - -#ifdef XXX_CD_DEBUG /* XXXsmurph What is afsccd ?? */ -void -afsc_dump() -{ - int i; - - for (i = 0; i < afsccd.cd_ndevs; ++i) - if (afsccd.cd_devs[i]) - ssh_dump(afsccd.cd_devs[i]); -} -#endif |