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08febfa741
and fixed everything that depended on getting it from the wrong place. Most of the broken things actually only depended on getting the declaration of their interrupt handler from "ioconf.h".
129 lines
3.0 KiB
C
129 lines
3.0 KiB
C
/*
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* Written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems for use under the MACH(2.5) operating system.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* $Id: bt5xx-445.c,v 1.6 1997/02/22 09:35:58 peter Exp $
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*/
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/*
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* Bulogic/Bustek 32 bit Addressing Mode SCSI driver.
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*
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* NOTE: 1. Some bt5xx card can NOT handle 32 bit addressing mode.
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* 2. OLD bt445s Revision A,B,C,D(nowired) + any firmware version
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* has broken busmaster for handling 32 bit addressing on H/W bus
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* side.
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*
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* 3. Extended probing still needs confirmation from our user base, due
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* to several H/W and firmware dependencies. If you have a problem
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* with extended probing, please contact 'amurai@spec.co.jp'
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*
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* amurai@spec.co.jp 94/6/16
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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/kernel.h>
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#include <scsi/scsi_all.h>
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#include <scsi/scsiconf.h>
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#include <i386/isa/isa_device.h>
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#include <i386/scsi/btreg.h>
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#include "ioconf.h"
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static int bt_isa_probe __P((struct isa_device *dev));
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static int bt_isa_attach __P((struct isa_device *dev));
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struct isa_driver btdriver =
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{
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bt_isa_probe,
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bt_isa_attach,
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"bt"
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};
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/*
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* Check if the device can be found at the port given
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* and if so, set it up ready for further work
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* as an argument, takes the isa_device structure from
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* autoconf.c
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*/
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static int
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bt_isa_probe(dev)
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struct isa_device *dev;
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{
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/*
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* find unit and check we have that many defined
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*/
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int unit = bt_unit;
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struct bt_data *bt;
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/*
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* We ignore the unit number assigned by config to allow
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* consistant numbering between PCI/EISA/ISA devices.
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* This is a total kludge until we have a configuration
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* manager.
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*/
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dev->id_unit = bt_unit;
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/*
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* Allocate a storage area for us
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*/
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bt = bt_alloc(unit, dev->id_iobase);
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if (!bt)
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return 0;
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/*
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* Try initialise a unit at this location
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* sets up dma and bus speed, loads bt->bt_int
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*/
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if (bt_init(bt) != 0) {
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bt_free(bt);
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return 0;
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}
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/*
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* If it's there, put in it's interrupt vectors
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*/
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dev->id_unit = unit;
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dev->id_irq = (1 << bt->bt_int);
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dev->id_drq = bt->bt_dma;
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bt_unit++;
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return 1;
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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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static int
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bt_isa_attach(dev)
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struct isa_device *dev;
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{
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int unit = dev->id_unit;
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struct bt_data *bt = btdata[unit];
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return( bt_attach(bt) );
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}
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/*
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* Handle an ISA interrupt.
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* XXX should go away as soon as ISA interrupt handlers
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* take a (void *) arg.
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*/
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void
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bt_isa_intr(unit)
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int unit;
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{
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struct bt_data* arg = btdata[unit];
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bt_intr((void *)arg);
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}
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