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60f17fcd9f
all the other bt_XXX() functions in i386/scsi/bt*. This the important effect of forcing a link error if the user is still using the old "vector btintr" which is dangerously wrong after Justin's updates to the driver. The correct isa vector line for the bt driver is "vector bt_isa_intr". Justin mentioned this in the commit message and updated LINT and GENERIC. This change is to enforce that.. :-)
148 lines
3.4 KiB
C
148 lines
3.4 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 1.1 1995/12/12 08:50:54 gibbs 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 <sys/devconf.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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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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static struct kern_devconf kdc_isa_bt = {
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0, 0, 0, /* filled in by dev_attach */
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"bt", 0, { MDDT_ISA, 0, "bio" },
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isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
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&kdc_isa0, /* parent */
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0, /* parentdata */
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DC_UNCONFIGURED, /* always start here */
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NULL,
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DC_CLS_MISC /* host adapters aren't special */
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};
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static inline void
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bt_isa_registerdev(struct isa_device *id)
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{
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#ifdef BOGUS
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if(id->id_unit)
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kdc_bt[id->id_unit] = kdc_bt[0];
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kdc_bt[id->id_unit].kdc_unit = id->id_unit;
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kdc_bt[id->id_unit].kdc_parentdata = id;
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dev_attach(&kdc_bt[id->id_unit]);
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#endif
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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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* 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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#ifndef DEV_LKM
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bt_isa_registerdev(dev);
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#endif /* not DEV_LKM */
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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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