111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* $NetBSD: aic7870.c,v 1.6 1996/01/31 00:45:25 cgd Exp $ */
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/*
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* Product specific probe and attach routines for:
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* 294X and aic7870 motherboard SCSI controllers
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*
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* Copyright (c) 1995 Justin T. Gibbs
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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 immediately at the beginning of the file, without modification,
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* 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. Absolutely no warranty of function or purpose is made by the author
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* Justin T. Gibbs.
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* 4. Modifications may be freely made to this file if the above conditions
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* are met.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/device.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/pcireg.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/aic7xxxvar.h>
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#define PCI_BASEADR0 PCI_MAP_REG_START
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#define PCI_VENDORID(x) ((x) & 0xFFFF)
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#define PCI_CHIPID(x) (((x) >> 16) & 0xFFFF)
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static int aic7870_probe __P((struct device *, void *, void *));
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static void aic7870_attach __P((struct device *, struct device *, void *));
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struct cfdriver ahccd = {
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NULL, "ahc", aic7870_probe, aic7870_attach, DV_DULL,
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sizeof(struct ahc_softc)
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};
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int ahcintr __P((void *));
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int
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aic7870_probe(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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if (PCI_VENDORID(pa->pa_id) != PCI_VENDOR_ADP)
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return 0;
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switch (PCI_CHIPID(pa->pa_id)) {
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case PCI_PRODUCT_ADP_AIC7870:
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case PCI_PRODUCT_ADP_2940:
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case PCI_PRODUCT_ADP_2940U:
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return 1;
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default:
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return 0;
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}
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}
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void
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aic7870_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 ahc_softc *ahc = (void *)self;
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int iobase;
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switch (PCI_CHIPID(pa->pa_id)) {
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case PCI_PRODUCT_ADP_AIC7870:
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ahc->type = AHC_AIC7870;
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break;
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case PCI_PRODUCT_ADP_2940:
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case PCI_PRODUCT_ADP_2940U:
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ahc->type = AHC_294;
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break;
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}
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if (pci_map_io(pa->pa_tag, PCI_BASEADR0, &iobase))
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return;
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/*
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* Make the offsets the same as for EISA
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*/
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iobase -= 0xc00ul;
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if (ahcprobe(ahc, iobase) == 0)
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return;
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ahcattach(ahc);
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ahc->sc_ih = pci_map_int(pa->pa_tag, IPL_BIO, ahcintr, ahc);
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}
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