Initial commit of a Cumana SCSI II driver using the sfas chip driver.
This commit is contained in:
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/* $NetBSD: csc.c,v 1.1 1998/09/01 02:24:11 mark Exp $ */
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/*-
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* Copyright (c) 1998 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 Scott Stevens.
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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
|
||||
* notice, this list of conditions and the following disclaimer.
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||||
* 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.
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||||
* 3. All advertising materials mentioning features or use of this software
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||||
* must display the following acknowledgement:
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||||
* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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
|
||||
* 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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* Cumana SCSI-2 driver uses the SFAS216 generic driver
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <vm/vm.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_page.h>
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#include <machine/pmap.h>
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#include <machine/io.h>
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#include <machine/irqhandler.h>
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#include <machine/bootconfig.h>
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#include <arm32/podulebus/podulebus.h>
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#include <arm32/podulebus/sfasreg.h>
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#include <arm32/podulebus/sfasvar.h>
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#include <arm32/podulebus/cscreg.h>
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#include <arm32/podulebus/cscvar.h>
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#include <arm32/podulebus/podules.h>
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void cscattach __P((struct device *, struct device *, void *));
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int cscmatch __P((struct device *, struct cfdata *, void *));
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int csc_scsicmd __P((struct scsipi_xfer *));
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struct scsipi_adapter csc_scsiswitch = {
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csc_scsicmd,
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sfas_minphys,
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0, /* no lun support */
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0, /* no lun support */
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};
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struct scsipi_device csc_scsidev = {
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NULL, /* use default error handler */
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NULL, /* do not have a start functio */
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NULL, /* have no async handler */
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NULL, /* Use default done routine */
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};
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struct cfattach csc_ca = {
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sizeof(struct csc_softc), cscmatch, cscattach
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};
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int csc_intr __P((void *arg));
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int csc_setup_dma __P((struct sfas_softc *sc, void *ptr, int len,
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int mode));
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int csc_build_dma_chain __P((struct sfas_softc *sc,
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struct sfas_dma_chain *chain, void *p, int l));
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int csc_need_bump __P((struct sfas_softc *sc, void *ptr, int len));
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void csc_led __P((struct sfas_softc *sc, int mode));
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/*
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* if we are a Cumana SCSI-2 card
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*/
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int
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cscmatch(pdp, cf, auxp)
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struct device *pdp;
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struct cfdata *cf;
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void *auxp;
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{
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struct podule_attach_args *pa = (struct podule_attach_args *)auxp;
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/* Look for the card */
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if (matchpodule(pa, MANUFACTURER_CUMANA, PODULE_CUMANA_SCSI2, -1) == 0)
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return(0);
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return(1);
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}
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void
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cscattach(pdp, dp, auxp)
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struct device *pdp;
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struct device *dp;
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void *auxp;
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{
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struct csc_softc *sc = (struct csc_softc *)dp;
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struct podule_attach_args *pa;
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csc_regmap_p rp = &sc->sc_regmap;
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vu_char *fas;
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int loop;
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pa = (struct podule_attach_args *)auxp;
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if (pa->pa_podule_number == -1)
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panic("Podule has disappeared !");
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sc->sc_specific.sc_podule_number = pa->pa_podule_number;
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sc->sc_specific.sc_podule = pa->pa_podule;
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sc->sc_specific.sc_iobase =
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(vu_char *)sc->sc_specific.sc_podule->mod_base;
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rp->status0 = &sc->sc_specific.sc_iobase[CSC_STATUS0];
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rp->alatch = &sc->sc_specific.sc_iobase[CSC_ALATCH];
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rp->dack = (vu_short *)&sc->sc_specific.sc_iobase[CSC_DACK];
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fas = &sc->sc_specific.sc_iobase[CSC_FAS_OFFSET_BASE];
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rp->FAS216.sfas_tc_low = &fas[CSC_FAS_OFFSET_TCL];
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rp->FAS216.sfas_tc_mid = &fas[CSC_FAS_OFFSET_TCM];
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rp->FAS216.sfas_fifo = &fas[CSC_FAS_OFFSET_FIFO];
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rp->FAS216.sfas_command = &fas[CSC_FAS_OFFSET_COMMAND];
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rp->FAS216.sfas_dest_id = &fas[CSC_FAS_OFFSET_DESTID];
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rp->FAS216.sfas_timeout = &fas[CSC_FAS_OFFSET_TIMEOUT];
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rp->FAS216.sfas_syncper = &fas[CSC_FAS_OFFSET_PERIOD];
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rp->FAS216.sfas_syncoff = &fas[CSC_FAS_OFFSET_OFFSET];
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rp->FAS216.sfas_config1 = &fas[CSC_FAS_OFFSET_CONFIG1];
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rp->FAS216.sfas_clkconv = &fas[CSC_FAS_OFFSET_CLKCONV];
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rp->FAS216.sfas_test = &fas[CSC_FAS_OFFSET_TEST];
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rp->FAS216.sfas_config2 = &fas[CSC_FAS_OFFSET_CONFIG2];
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rp->FAS216.sfas_config3 = &fas[CSC_FAS_OFFSET_CONFIG3];
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rp->FAS216.sfas_tc_high = &fas[CSC_FAS_OFFSET_TCH];
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rp->FAS216.sfas_fifo_bot = &fas[CSC_FAS_OFFSET_FIFOBOT];
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sc->sc_softc.sc_fas = (sfas_regmap_p)rp;
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sc->sc_softc.sc_spec = &sc->sc_specific;
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sc->sc_softc.sc_led = csc_led;
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sc->sc_softc.sc_setup_dma = csc_setup_dma;
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sc->sc_softc.sc_build_dma_chain = csc_build_dma_chain;
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sc->sc_softc.sc_need_bump = csc_need_bump;
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sc->sc_softc.sc_clock_freq = 8; /* Cumana runs at 8MHz */
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sc->sc_softc.sc_timeout = 250; /* Set default timeout to 250ms */
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sc->sc_softc.sc_config_flags = SFAS_NO_DMA /*| SFAS_NF_DEBUG*/;
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sc->sc_softc.sc_host_id = 7; /* Should check the jumpers */
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sc->sc_softc.sc_bump_sz = NBPG;
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sc->sc_softc.sc_bump_pa = 0x0;
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sfasinitialize((struct sfas_softc *)sc);
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sc->sc_softc.sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE;
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sc->sc_softc.sc_link.adapter_softc = sc;
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sc->sc_softc.sc_link.scsipi_scsi.adapter_target = sc->sc_softc.sc_host_id;
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sc->sc_softc.sc_link.adapter = &csc_scsiswitch;
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sc->sc_softc.sc_link.device = &csc_scsidev;
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sc->sc_softc.sc_link.openings = 1;
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sc->sc_softc.sc_link.scsipi_scsi.max_target = 7;
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sc->sc_softc.sc_link.type = BUS_SCSI;
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/* Provide an override for the host id */
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(void)get_bootconf_option(boot_args, "csc.hostid",
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BOOTOPT_TYPE_INT, &sc->sc_softc.sc_link.scsipi_scsi.adapter_target);
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printf(" host=%d", sc->sc_softc.sc_link.scsipi_scsi.adapter_target);
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sc->sc_softc.sc_ih.ih_func = csc_intr;
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sc->sc_softc.sc_ih.ih_arg = &sc->sc_softc;
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sc->sc_softc.sc_ih.ih_level = IPL_BIO;
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sc->sc_softc.sc_ih.ih_name = "scsi: csc";
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sc->sc_softc.sc_ih.ih_maskaddr = sc->sc_specific.sc_podule->irq_addr;
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sc->sc_softc.sc_ih.ih_maskbits = sc->sc_specific.sc_podule->irq_mask;
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/* initialise the alatch */
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sc->sc_specific.sc_alatch_defs = (CSC_POLL?0:CSC_ALATCH_DEFS_INTEN);
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for (loop = 0; loop < 8; loop ++) {
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if(loop != 3)
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*rp->alatch = (loop << 1) |
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((sc->sc_specific.sc_alatch_defs & (1 << loop))?1:0);
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}
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#if CSC_POLL == 0
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if (irq_claim(IRQ_PODULE, &sc->sc_softc.sc_ih))
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panic("%s: Cannot install IRQ handler\n", dp->dv_xname);
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#else
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printf(" polling");
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#endif
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printf("\n");
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/* attach all scsi units on us */
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config_found(dp, &sc->sc_softc.sc_link, scsiprint);
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}
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int
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csc_intr(arg)
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void *arg;
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{
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struct sfas_softc *dev = arg;
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csc_regmap_p rp;
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int quickints;
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rp = (csc_regmap_p)dev->sc_fas;
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if (*rp->FAS216.sfas_status & SFAS_STAT_INTERRUPT_PENDING) {
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quickints = 16;
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do {
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dev->sc_status = *rp->FAS216.sfas_status;
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dev->sc_interrupt = *rp->FAS216.sfas_interrupt;
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if (dev->sc_interrupt & SFAS_INT_RESELECTED) {
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dev->sc_resel[0] = *rp->FAS216.sfas_fifo;
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dev->sc_resel[1] = *rp->FAS216.sfas_fifo;
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}
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sfasintr(dev);
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} while((*rp->FAS216.sfas_status & SFAS_STAT_INTERRUPT_PENDING)
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&& --quickints);
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}
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return(0); /* Pass interrupt on down the chain */
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}
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/* Load transfer address into dma register */
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void
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csc_set_dma_adr(sc, ptr)
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struct sfas_softc *sc;
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void *ptr;
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{
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return;
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}
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/* Set DMA transfer counter */
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void
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csc_set_dma_tc(sc, len)
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struct sfas_softc *sc;
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unsigned int len;
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{
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*sc->sc_fas->sfas_tc_low = len; len >>= 8;
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*sc->sc_fas->sfas_tc_mid = len; len >>= 8;
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*sc->sc_fas->sfas_tc_high = len;
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}
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/* Set DMA mode */
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void
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csc_set_dma_mode(sc, mode)
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struct sfas_softc *sc;
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int mode;
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{
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}
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/* Initialize DMA for transfer */
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int
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csc_setup_dma(sc, ptr, len, mode)
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struct sfas_softc *sc;
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void *ptr;
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int len;
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int mode;
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{
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return(0);
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}
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/* Check if address and len is ok for DMA transfer */
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int
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csc_need_bump(sc, ptr, len)
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struct sfas_softc *sc;
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void *ptr;
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int len;
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{
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int p;
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p = (int)ptr & 0x03;
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if (p) {
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p = 4-p;
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if (len < 256)
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p = len;
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}
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return(p);
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}
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/* Interrupt driven routines */
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int
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csc_build_dma_chain(sc, chain, p, l)
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struct sfas_softc *sc;
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struct sfas_dma_chain *chain;
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void *p;
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int l;
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{
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return(0);
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}
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/* Turn on/off led */
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void
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csc_led(sc, mode)
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struct sfas_softc *sc;
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int mode;
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{
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csc_regmap_p rp;
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rp = (csc_regmap_p)sc->sc_fas;
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if (mode) {
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sc->sc_led_status++;
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} else {
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if (sc->sc_led_status)
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sc->sc_led_status--;
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}
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}
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int
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csc_scsicmd(xs)
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struct scsipi_xfer *xs;
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{
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/* ensure command is polling for the moment */
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#if CSC_POLL > 0
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xs->flags |= SCSI_POLL;
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#endif
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return(sfas_scsicmd(xs));
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}
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@ -0,0 +1,95 @@
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/* $NetBSD: cscreg.h,v 1.1 1998/09/01 02:24:12 mark Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Scott Stevens.
|
||||
*
|
||||
* 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 NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation 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 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.
|
||||
*/
|
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/*
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* Cumana SCSI-2 with FAS216 SCSI interface hardware description.
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*/
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#ifndef _CSCREG_H_
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#define _CSCREG_H_
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#include <arm32/podulebus/sfasvar.h>
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typedef volatile unsigned short vu_short;
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typedef struct csc_regmap {
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sfas_regmap_t FAS216;
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vu_char *status0;
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vu_char *alatch;
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vu_short *dack;
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} csc_regmap_t;
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typedef csc_regmap_t *csc_regmap_p;
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/*
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* Register information
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*/
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#define CSC_STATUS0 0x0000
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#define CSC_ALATCH 0x0014
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#define CSC_DACK 0x0200
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#define CSC_FAS_OFFSET_BASE 0x0300
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#define CSC_FAS_OFFSET_TCL 0x00
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#define CSC_FAS_OFFSET_TCM 0x04
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#define CSC_FAS_OFFSET_FIFO 0x08
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#define CSC_FAS_OFFSET_COMMAND 0x0c
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#define CSC_FAS_OFFSET_DESTID 0x10
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#define CSC_FAS_OFFSET_TIMEOUT 0x14
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#define CSC_FAS_OFFSET_PERIOD 0x18
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#define CSC_FAS_OFFSET_OFFSET 0x1c
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#define CSC_FAS_OFFSET_CONFIG1 0x20
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#define CSC_FAS_OFFSET_CLKCONV 0x24
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#define CSC_FAS_OFFSET_TEST 0x28
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#define CSC_FAS_OFFSET_CONFIG2 0x2c
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#define CSC_FAS_OFFSET_CONFIG3 0x30
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#define CSC_FAS_OFFSET_TCH 0x38
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#define CSC_FAS_OFFSET_FIFOBOT 0x3c
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#define CSC_STATUS0_INT 0x01
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#define CSC_STATUS0_DREQ 0x02
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#define CSC_STATUS0_EDOUT 0x04
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#define CSC_STATUS0_LATCHED 0x08
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#define CSC_ALATCH_DEFS_P7 0x01
|
||||
#define CSC_ALATCH_DEFS_INTEN 0x02
|
||||
#define CSC_ALATCH_DEFS_TERM 0x04
|
||||
#define CSC_ALATCH_DEFS_RSVD 0x08
|
||||
#define CSC_ALATCH_DEFS_PROG 0x10
|
||||
#define CSC_ALATCH_DEFS_DMA32 0x20
|
||||
#define CSC_ALATCH_DEFS_DMAEN 0x40
|
||||
#define CSC_ALATCH_DEFS_DMADIR 0x80
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
/* $NetBSD: cscvar.h,v 1.1 1998/09/01 02:24:12 mark Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Scott Stevens.
|
||||
*
|
||||
* 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 NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation 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 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.
|
||||
*/
|
||||
|
||||
#ifndef _CSCVAR_H_
|
||||
#define _CSCVAR_H_
|
||||
|
||||
#include <arm32/podulebus/sfasvar.h>
|
||||
#include <arm32/podulebus/cscreg.h>
|
||||
|
||||
#define CSC_POLL 1
|
||||
|
||||
struct csc_specific {
|
||||
vu_char *sc_iobase;
|
||||
u_char sc_alatch_defs;
|
||||
int sc_podule_number;
|
||||
podule_t *sc_podule;
|
||||
};
|
||||
|
||||
struct csc_softc {
|
||||
struct sfas_softc sc_softc;
|
||||
csc_regmap_t sc_regmap;
|
||||
struct csc_specific sc_specific;
|
||||
};
|
||||
|
||||
#endif /* _CSCVAR_H_ */
|
||||
Loading…
Reference in New Issue