79b026a8f3
ISA-compatible port space of PCI buslogic cards. * Add call to bha_pci.c to disable the ISA-compatible ports of a PCI device. The ISA-compatible ports are enabled by default, which causes the card to be autoconfigured a second time as an ISA device, which appears to deadlock the card. * Change bha_cmd() to return the number of bytes it actually received in response to a command, or -1 on error. * Use heuristics (checking for bha-only registers, and checking the size of the response to BHA_INQURE_EXTENDED) to bha_find, to make sure the bha driver never matches an aha (Adaptec 1542 or compatible) device. A single kernel should now boot on either Adaptec or BusLogic controllers, provided we always probe for BusLogic devices before Adaptec devices, but this has not yet been verified.
157 lines
4.7 KiB
C
157 lines
4.7 KiB
C
/* $NetBSD: bha_pci.c,v 1.6 1996/11/05 03:04:36 jonathan Exp $ */
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/*
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* Copyright (c) 1994, 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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* 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/types.h>
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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/intr.h>
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#include <scsi/scsi_all.h>
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#include <scsi/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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int bha_pci_match __P((struct device *, void *, void *));
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void bha_pci_attach __P((struct device *, struct device *, void *));
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struct cfattach bha_pci_ca = {
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sizeof(struct bha_softc), bha_pci_match, bha_pci_attach
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};
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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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int
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bha_pci_match(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct pci_attach_args *pa = aux;
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bus_space_tag_t iot = pa->pa_iot;
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bus_addr_t iobase;
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bus_size_t iosize;
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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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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_OLD946C &&
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PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_946C)
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return (0);
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if (pci_io_find(pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize))
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return (0);
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if (bus_space_map(iot, iobase, iosize, 0, &ioh))
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return (0);
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rv = bha_find(iot, ioh, NULL);
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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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void
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bha_pci_attach(parent, self, aux)
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struct device *parent, *self;
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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 = pa->pa_iot;
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bus_addr_t iobase;
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bus_size_t iosize;
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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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if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_OLD946C)
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model = "BusLogic 9xxC SCSI";
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else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_946C)
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model = "BusLogic 9xxC SCSI";
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else
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model = "unknown model!";
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printf(": %s\n", model);
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if (pci_io_find(pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize))
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panic("bha_attach: pci_io_find failed!");
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if (bus_space_map(iot, iobase, iosize, 0, &ioh))
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panic("bha_attach: bus_space_map failed!");
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sc->sc_iot = iot;
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sc->sc_ioh = ioh;
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if (!bha_find(iot, ioh, sc))
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panic("bha_attach: bha_find failed!");
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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(pc, pa->pa_intrtag, pa->pa_intrpin,
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pa->pa_intrline, &ih)) {
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printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
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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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printf("%s: couldn't establish interrupt",
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sc->sc_dev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
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bha_attach(sc);
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bha_disable_isacompat(sc);
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}
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