178 lines
5.2 KiB
C
178 lines
5.2 KiB
C
/* $NetBSD: aic_isa.c,v 1.19 2006/11/16 01:33:00 christos Exp $ */
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/*
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* Copyright (c) 1994, 1995, 1996 Charles M. Hannum. 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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* 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 Charles M. Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Copyright (c) 1994 Jarle Greipsland
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* 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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* Acknowledgements: Many of the algorithms used in this driver are
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* inspired by the work of Julian Elischer (julian@tfs.com) and
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* Charles Hannum (mycroft@duality.gnu.ai.mit.edu). Thanks a million!
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: aic_isa.c,v 1.19 2006/11/16 01:33:00 christos Exp $");
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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/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/buf.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/queue.h>
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#include <machine/bus.h>
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#include <machine/intr.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/isa/isavar.h>
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#include <dev/ic/aic6360reg.h>
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#include <dev/ic/aic6360var.h>
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int aic_isa_probe(struct device *, struct cfdata *, void *);
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struct aic_isa_softc {
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struct aic_softc sc_aic; /* real "aic" softc */
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/* ISA-specific goo. */
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void *sc_ih; /* interrupt handler */
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};
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CFATTACH_DECL(aic_isa, sizeof(struct aic_isa_softc),
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aic_isa_probe, aic_isa_attach, NULL, NULL);
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/*
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* INITIALIZATION ROUTINES (probe, attach ++)
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*/
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/*
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* aic_isa_probe: probe for AIC6360 SCSI-controller
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* returns non-zero value if a controller is found.
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*/
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int
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aic_isa_probe(struct device *parent, struct cfdata *match,
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void *aux)
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{
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struct isa_attach_args *ia = aux;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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int rv;
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if (ia->ia_nio < 1)
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return (0);
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if (ia->ia_nirq < 1)
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return (0);
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if (ISA_DIRECT_CONFIG(ia))
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return (0);
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/* Disallow wildcarded i/o address. */
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if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
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return (0);
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/* Disallow wildcarded IRQ. */
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if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
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return (0);
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if (bus_space_map(iot, ia->ia_io[0].ir_addr, AIC_ISA_IOSIZE, 0, &ioh))
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return (0);
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rv = aic_find(iot, ioh);
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bus_space_unmap(iot, ioh, AIC_ISA_IOSIZE);
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if (rv) {
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ia->ia_nio = 1;
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ia->ia_io[0].ir_size = AIC_ISA_IOSIZE;
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ia->ia_nirq = 1;
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ia->ia_niomem = 0;
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ia->ia_ndrq = 0;
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}
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return rv;
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}
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void
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aic_isa_attach(struct device *parent, struct device *self, void *aux)
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{
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struct isa_attach_args *ia = aux;
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struct aic_isa_softc *isc = (void *)self;
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struct aic_softc *sc = &isc->sc_aic;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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isa_chipset_tag_t ic = ia->ia_ic;
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printf("\n");
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if (bus_space_map(iot, ia->ia_io[0].ir_addr, AIC_ISA_IOSIZE, 0, &ioh)) {
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printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
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return;
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}
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sc->sc_iot = iot;
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sc->sc_ioh = ioh;
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if (!aic_find(iot, ioh)) {
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printf("%s: aic_find failed", sc->sc_dev.dv_xname);
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return;
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}
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isc->sc_ih = isa_intr_establish(ic, ia->ia_irq[0].ir_irq, IST_EDGE,
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IPL_BIO, aicintr, sc);
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if (isc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt\n",
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sc->sc_dev.dv_xname);
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return;
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}
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aicattach(sc);
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}
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