261 lines
6.2 KiB
C
261 lines
6.2 KiB
C
/*
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* Copyright (c) 1997 by Matthew N. Dodd <winter@jurai.net>
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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. 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. 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 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 FOR
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* 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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* Credits: Based on and part of the DPT driver for FreeBSD written and
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* maintained by Simon Shapiro <shimon@simon-shapiro.org>
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*/
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/*
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* $Id: dpt_eisa.c,v 1.5 1999/04/18 15:50:33 peter Exp $
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*/
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#include "eisa.h"
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#if NEISA > 0
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#include "opt_dpt.h"
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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/buf.h>
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#include <sys/proc.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <cam/scsi/scsi_all.h>
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#include <dev/dpt/dpt.h>
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#include <i386/eisa/eisaconf.h>
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#include <i386/eisa/dpt_eisa.h>
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#include <machine/clock.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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/* Function Prototypes */
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static const char *dpt_eisa_match(eisa_id_t);
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static int
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dpt_eisa_probe(device_t dev)
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{
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const char *desc;
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u_int32_t io_base;
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u_int intdef;
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u_int irq;
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desc = dpt_eisa_match(eisa_get_id(dev));
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if (!desc)
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return (ENXIO);
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device_set_desc(dev, desc);
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io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE)
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+ DPT_EISA_SLOT_OFFSET;
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eisa_add_iospace(dev, io_base, DPT_EISA_IOSIZE, RESVADDR_NONE);
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intdef = inb(DPT_EISA_INTDEF + io_base);
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irq = intdef & DPT_EISA_INT_NUM_MASK;
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switch (irq) {
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case DPT_EISA_INT_NUM_11:
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irq = 11;
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break;
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case DPT_EISA_INT_NUM_15:
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irq = 15;
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break;
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case DPT_EISA_INT_NUM_14:
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irq = 14;
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break;
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default:
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printf("dpt at slot %d: illegal irq setting %d\n",
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eisa_get_slot(dev), irq);
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irq = 0;
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break;
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}
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if (irq == 0)
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return ENXIO;
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eisa_add_intr(dev, irq);
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return 0;
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}
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static int
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dpt_eisa_attach(device_t dev)
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{
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dpt_softc_t *dpt;
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struct resource *io = 0;
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struct resource *irq = 0;
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int unit = device_get_unit(dev);
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int shared;
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int s;
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int rid;
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void *ih;
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rid = 0;
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io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (!io) {
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device_printf(dev, "No I/O space?!\n");
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return ENOMEM;
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}
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shared = (inb(DPT_EISA_INTDEF + rman_get_start(io))
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& DPT_EISA_INT_LEVEL) ? RF_SHAREABLE : 0;
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dpt = dpt_alloc(unit, rman_get_bustag(io),
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rman_get_bushandle(io) + DPT_EISA_EATA_REG_OFFSET);
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if (dpt == NULL)
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goto bad;
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/* Allocate a dmatag representing the capabilities of this attachment */
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/* XXX Should be a child of the EISA bus dma tag */
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if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/0, /*boundary*/0,
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/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
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/*nsegments*/BUS_SPACE_UNRESTRICTED,
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/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
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/*flags*/0, &dpt->parent_dmat) != 0) {
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dpt_free(dpt);
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goto bad;
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}
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rid = 0;
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irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
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0, ~0, 1, shared | RF_ACTIVE);
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if (!irq) {
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device_printf(dev, "No irq?!\n");
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goto bad;
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}
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s = splcam();
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if (dpt_init(dpt) != 0) {
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dpt_free(dpt);
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goto bad;
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}
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/* Register with the XPT */
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dpt_attach(dpt);
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bus_setup_intr(dev, irq, INTR_TYPE_CAM, dpt_intr, dpt, &ih);
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splx(s);
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return 0;
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bad:
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if (io)
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bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
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if (irq)
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bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
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return -1;
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}
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static const char *
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dpt_eisa_match(type)
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eisa_id_t type;
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{
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switch (type) {
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case DPT_EISA_DPT2402 :
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return ("DPT PM2012A/9X");
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break;
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case DPT_EISA_DPTA401 :
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return ("DPT PM2012B/9X");
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break;
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case DPT_EISA_DPTA402 :
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return ("DPT PM2012B2/9X");
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break;
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case DPT_EISA_DPTA410 :
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return ("DPT PM2x22A/9X");
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break;
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case DPT_EISA_DPTA411 :
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return ("DPT Spectre");
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break;
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case DPT_EISA_DPTA412 :
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return ("DPT PM2021A/9X");
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break;
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case DPT_EISA_DPTA420 :
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return ("DPT Smart Cache IV (PM2042)");
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break;
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case DPT_EISA_DPTA501 :
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return ("DPT PM2012B1/9X");
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break;
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case DPT_EISA_DPTA502 :
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return ("DPT PM2012Bx/9X");
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break;
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case DPT_EISA_DPTA701 :
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return ("DPT PM2011B1/9X");
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break;
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case DPT_EISA_DPTBC01 :
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return ("DPT PM3011/7X ESDI");
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break;
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case DPT_EISA_NEC8200 :
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return ("NEC EATA SCSI");
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break;
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case DPT_EISA_ATT2408 :
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return ("ATT EATA SCSI");
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break;
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default:
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break;
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}
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return (NULL);
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}
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static device_method_t dpt_eisa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, dpt_eisa_probe),
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DEVMETHOD(device_attach, dpt_eisa_attach),
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{ 0, 0 }
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};
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static driver_t dpt_eisa_driver = {
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"dpt",
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dpt_eisa_methods,
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1, /* unused */
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};
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static devclass_t dpt_devclass;
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DRIVER_MODULE(dpt, eisa, dpt_eisa_driver, dpt_devclass, 0, 0);
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#endif /* NEISA > 0 */
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