118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/* $NetBSD: osiop_sbdio.c,v 1.4 2008/05/14 13:29:28 tsutsui Exp $ */
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/*-
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* Copyright (c) 2001, 2005 Izumi Tsutsui. All rights reserved.
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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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: osiop_sbdio.c,v 1.4 2008/05/14 13:29:28 tsutsui Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <machine/sbdiovar.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 <dev/ic/osiopreg.h>
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#include <dev/ic/osiopvar.h>
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int osiop_sbdio_match(device_t, cfdata_t, void *);
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void osiop_sbdio_attach(device_t, device_t, void *);
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int osiop_sbdio_intr(void *);
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CFATTACH_DECL_NEW(osiop_sbdio, sizeof(struct osiop_softc),
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osiop_sbdio_match, osiop_sbdio_attach, NULL, NULL);
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int
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osiop_sbdio_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct sbdio_attach_args *sa = aux;
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return strcmp(sa->sa_name, "osiop") ? 0 : 1;
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}
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void
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osiop_sbdio_attach(device_t parent, device_t self, void *aux)
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{
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struct osiop_softc *sc = device_private(self);
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struct sbdio_attach_args *sa = aux;
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int error, scid;
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sc->sc_dev = self;
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sc->sc_dmat = sa->sa_dmat;
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sc->sc_bst = sa->sa_bust;
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error = bus_space_map(sc->sc_bst, sa->sa_addr1, OSIOP_NREGS, 0,
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&sc->sc_reg);
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if (error != 0) {
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aprint_error(": can't map registers, error = %d\n", error);
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return;
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}
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sc->sc_clock_freq = 25; /* MHz */
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sc->sc_ctest7 = 0;
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sc->sc_dcntl = OSIOP_DCNTL_EA;
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if (sa->sa_flags == 0x0001) /* TR2A */
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sc->sc_ctest4 = OSIOP_CTEST4_MUX; /* Host bus multiplex mode */
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scid = ffs(osiop_read_1(sc, OSIOP_SCID));
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if (scid == 0)
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scid = 7;
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else
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scid--;
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sc->sc_id = scid;
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intr_establish(sa->sa_irq, osiop_sbdio_intr, sc);
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osiop_attach(sc);
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}
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int
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osiop_sbdio_intr(void *arg)
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{
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struct osiop_softc *sc = arg;
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uint8_t istat;
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if (sc->sc_flags & OSIOP_INTSOFF)
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return 0;
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istat = osiop_read_1(sc, OSIOP_ISTAT);
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if ((istat & (OSIOP_ISTAT_SIP | OSIOP_ISTAT_DIP)) == 0)
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return 0;
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/* Save interrupt details for the back-end interrupt handler */
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sc->sc_sstat0 = osiop_read_1(sc, OSIOP_SSTAT0);
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sc->sc_istat = istat;
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sc->sc_dstat = osiop_read_1(sc, OSIOP_DSTAT);
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osiop_intr(sc);
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return 1;
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}
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