144 lines
4.2 KiB
C
144 lines
4.2 KiB
C
/* $NetBSD: iha_pci.c,v 1.8 2004/04/23 21:13:06 itojun Exp $ */
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/*-
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* Device driver for the INI-9XXXU/UW or INIC-940/950 PCI SCSI Controller.
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*
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* Written for 386bsd and FreeBSD by
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* Winston Hung <winstonh@initio.com>
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*
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* Copyright (c) 1997-1999 Initio Corp.
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* Copyright (c) 2000 Ken Westerback
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* Copyright (c) 2001 Izumi Tsutsui
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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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* without modification, immediately at the beginning of the file.
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* 2. 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 OR HIS RELATIVES 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 MIND, 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
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Ported to NetBSD by Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> from OpenBSD:
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* $OpenBSD: iha_pci.c,v 1.2 2001/03/29 23:53:38 krw Exp $
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: iha_pci.c,v 1.8 2004/04/23 21:13:06 itojun 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 <uvm/uvm_extern.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/pcivar.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <dev/ic/ihavar.h>
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static int iha_pci_probe(struct device *, struct cfdata *, void *);
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static void iha_pci_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(iha_pci, sizeof(struct iha_softc),
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iha_pci_probe, iha_pci_attach, NULL, NULL);
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static int
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iha_pci_probe(parent, match, aux)
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struct device *parent;
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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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if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO)
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return (0);
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switch (PCI_PRODUCT(pa->pa_id)) {
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case PCI_PRODUCT_INITIO_I940:
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case PCI_PRODUCT_INITIO_I950:
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return (1);
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}
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return (0);
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}
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static void
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iha_pci_attach(parent, self, aux)
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struct device *parent;
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struct device *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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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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pci_intr_handle_t ih;
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struct iha_softc *sc = (struct iha_softc *)self;
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const char *intrstr;
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pcireg_t command;
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int ioh_valid;
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char devinfo[256];
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pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
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printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
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command = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG);
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command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE;
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
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/*
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* XXX - Tried memory mapping (using code from adw and ahc)
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* rather that IO mapping, but it didn't work at all..
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*/
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ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
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&iot, &ioh, NULL, NULL);
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if (ioh_valid != 0) {
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printf("%s: unable to map registers\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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sc->sc_dmat = pa->pa_dmat;
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if (pci_intr_map(pa, &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(pa->pa_pc, ih);
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sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, iha_intr, sc);
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if (sc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt", 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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iha_attach(sc);
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}
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