151 lines
4.4 KiB
C
151 lines
4.4 KiB
C
/* $NetBSD: bha_pci.c,v 1.33 2008/04/28 20:23:54 martin 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 Charles M. Hannum.
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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 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
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* 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: bha_pci.c,v 1.33 2008/04/28 20:23:54 martin 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 <sys/bus.h>
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#include <sys/intr.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/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/ic/bhareg.h>
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#include <dev/ic/bhavar.h>
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#define PCI_CBIO 0x10
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/*
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* Check the slots looking for a board we recognise
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* If we find one, note it's address (slot) and call
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* the actual probe routine to check it out.
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*/
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static int
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bha_pci_match(struct device *parent, struct cfdata *match,
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void *aux)
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{
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struct pci_attach_args *pa = aux;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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bus_size_t iosize;
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int rv;
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if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC)
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return (0);
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if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC &&
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PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER)
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return (0);
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if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh,
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NULL, &iosize))
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return (0);
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rv = bha_find(iot, ioh);
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bus_space_unmap(iot, ioh, iosize);
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return (rv);
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}
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/*
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* Attach all the sub-devices we can find
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*/
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static void
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bha_pci_attach(struct device *parent, struct device *self, void *aux)
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{
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struct pci_attach_args *pa = aux;
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struct bha_softc *sc = (void *)self;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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pci_chipset_tag_t pc = pa->pa_pc;
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pci_intr_handle_t ih;
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pcireg_t csr;
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const char *model, *intrstr;
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aprint_naive(": SCSI controller\n");
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if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC)
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model = "BusLogic 9xxC SCSI";
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else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER)
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model = "BusLogic 9xxC SCSI";
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else
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model = "unknown model!";
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aprint_normal(": %s\n", model);
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if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh,
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NULL, NULL)) {
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aprint_error_dev(&sc->sc_dev, "unable to map device registers\n");
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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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sc->sc_dmat = pa->pa_dmat;
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if (!bha_find(iot, ioh))
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panic("bha_pci_attach: bha_find failed");
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sc->sc_dmaflags = 0;
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csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE);
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if (pci_intr_map(pa, &ih)) {
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aprint_error_dev(&sc->sc_dev, "couldn't map interrupt\n");
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return;
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}
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intrstr = pci_intr_string(pc, ih);
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sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, bha_intr, sc);
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if (sc->sc_ih == NULL) {
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aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt");
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if (intrstr != NULL)
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aprint_normal(" at %s", intrstr);
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aprint_normal("\n");
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return;
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}
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aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr);
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bha_attach(sc);
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bha_disable_isacompat(sc);
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}
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CFATTACH_DECL(bha_pci, sizeof(struct bha_softc),
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bha_pci_match, bha_pci_attach, NULL, NULL);
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