190 lines
4.4 KiB
C
190 lines
4.4 KiB
C
/* $NetBSD: dpt_eisa.c,v 1.4 2000/06/30 13:36:49 ad Exp $ */
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/*
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* Copyright (c) 1999 Andrew Doran <ad@NetBSD.org>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* EISA front-end for DPT EATA SCSI driver.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: dpt_eisa.c,v 1.4 2000/06/30 13:36:49 ad Exp $");
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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 <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/eisa/eisavar.h>
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#include <dev/eisa/eisadevs.h>
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#include <dev/ic/dptreg.h>
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#include <dev/ic/dptvar.h>
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#define DPT_EISA_SLOT_OFFSET 0x0c00
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#define DPT_EISA_IOSIZE 0x0100
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#define DPT_EISA_IOCONF 0x90
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#define DPT_EISA_EATA_REG_OFFSET 0x88
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int dpt_eisa_irq __P((bus_space_tag_t, bus_space_handle_t, int *));
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int dpt_eisa_match __P((struct device *, struct cfdata *, void *));
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void dpt_eisa_attach __P((struct device *, struct device *, void *));
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struct cfattach dpt_eisa_ca = {
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sizeof(struct dpt_softc), dpt_eisa_match, dpt_eisa_attach
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};
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const char *dpt_eisa_boards[] = {
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"DPT2402",
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"DPTA401",
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"DPTA402",
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"DPTA410",
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"DPTA411",
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"DPTA412",
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"DPTA420",
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"DPTA501",
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"DPTA502",
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"DPTA701",
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"DPTBC01",
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"NEC8200", /* OEM */
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"ATT2408", /* OEM */
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NULL
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};
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int
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dpt_eisa_irq(iot, ioh, irq)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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int *irq;
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{
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switch (bus_space_read_1(iot, ioh, DPT_EISA_IOCONF) & 0x38) {
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case 0x08:
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*irq = 11;
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break;
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case 0x10:
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*irq = 15;
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break;
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case 0x20:
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*irq = 14;
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break;
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default:
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return (-1);
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}
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return (0);
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}
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int
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dpt_eisa_match(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 eisa_attach_args *ea;
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int i;
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ea = aux;
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for (i = 0; dpt_eisa_boards[i] != NULL; i++)
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if (strcmp(ea->ea_idstring, dpt_eisa_boards[i]) == 0)
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break;
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return (dpt_eisa_boards[i] != NULL);
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}
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void
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dpt_eisa_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 eisa_attach_args *ea;
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bus_space_handle_t ioh;
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eisa_chipset_tag_t ec;
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eisa_intr_handle_t ih;
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struct dpt_softc *sc;
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bus_space_tag_t iot;
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const char *intrstr;
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int irq;
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ea = aux;
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sc = (struct dpt_softc *)self;
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iot = ea->ea_iot;
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ec = ea->ea_ec;
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printf(": ");
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if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
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DPT_EISA_SLOT_OFFSET, DPT_EISA_IOSIZE, 0, &ioh)) {
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printf("can't map i/o space\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 = ea->ea_dmat;
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/* Map and establish the interrupt. */
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if (dpt_eisa_irq(iot, ioh, &irq)) {
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printf("HBA on invalid IRQ (%d)\n", irq);
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return;
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}
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if (eisa_intr_map(ec, irq, &ih)) {
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printf("can't map interrupt (%d)\n", irq);
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return;
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}
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intrstr = eisa_intr_string(ec, ih);
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sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
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dpt_intr, sc);
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if (sc->sc_ih == NULL) {
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printf("can't establish interrupt");
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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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/* Read the EATA configuration */
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if (dpt_readcfg(sc)) {
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printf("%s: readcfg failed - see dpt(4)\n",
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sc->sc_dv.dv_xname);
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return;
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}
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/* Now attach to the bus-independent code */
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dpt_init(sc, intrstr);
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}
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