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.. :-)
260 lines
5.8 KiB
C
260 lines
5.8 KiB
C
/*
|
|
* Product specific probe and attach routines for:
|
|
* Buslogic BT74x SCSI controllers
|
|
*
|
|
* Copyright (c) 1995 Justin T. Gibbs
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice immediately at the beginning of the file, without modification,
|
|
* this list of conditions, and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Absolutely no warranty of function or purpose is made by the author
|
|
* Justin T. Gibbs.
|
|
* 4. Modifications may be freely made to this file if the above conditions
|
|
* are met.
|
|
*
|
|
* $Id: bt74x.c,v 1.1 1995/12/12 08:47:11 gibbs Exp $
|
|
*/
|
|
|
|
#include "eisa.h"
|
|
#if NEISA > 0
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/devconf.h>
|
|
#include <sys/kernel.h>
|
|
#include <scsi/scsi_all.h>
|
|
#include <scsi/scsiconf.h>
|
|
#include <machine/clock.h>
|
|
#include <i386/eisa/eisaconf.h>
|
|
#include <i386/scsi/btreg.h>
|
|
|
|
#define EISA_DEVICE_ID_BUSLOGIC_74X_B 0x0ab34201
|
|
#define EISA_DEVICE_ID_BUSLOGIC_74X_C 0x0ab34202
|
|
|
|
#define BT_IOSIZE 0x04 /* Move to central header */
|
|
#define BT_EISA_IOSIZE 0x100
|
|
|
|
#define EISA_IOCONF 0x08C
|
|
#define PORTADDR 0x07
|
|
#define PORT_330 0x00
|
|
#define PORT_334 0x01
|
|
#define PORT_230 0x02
|
|
#define PORT_234 0x03
|
|
#define PORT_130 0x04
|
|
#define PORT_134 0x05
|
|
#define IRQ_CHANNEL 0xe0
|
|
#define INT_11 0x40
|
|
#define INT_10 0x20
|
|
#define INT_15 0xa0
|
|
#define INT_12 0x60
|
|
#define INT_14 0x80
|
|
#define INT_9 0x00
|
|
|
|
#define EISA_IRQ_TYPE 0x08D
|
|
#define LEVEL 0x40
|
|
|
|
|
|
static int bt_eisa_probe __P((void));
|
|
static int bt_eisa_attach __P((struct eisa_device *e_dev));
|
|
|
|
struct eisa_driver bt_eisa_driver = {
|
|
"bt",
|
|
bt_eisa_probe,
|
|
bt_eisa_attach,
|
|
/*shutdown*/NULL,
|
|
&bt_unit
|
|
};
|
|
|
|
DATA_SET (eisadriver_set, bt_eisa_driver);
|
|
|
|
static struct kern_devconf kdc_eisa_bt = {
|
|
0, 0, 0, /* filled in by dev_attach */
|
|
"bt", 0, { MDDT_EISA, 0, "bio" },
|
|
eisa_generic_externalize, 0, 0, EISA_EXTERNALLEN,
|
|
&kdc_eisa0, /* parent */
|
|
0, /* parentdata */
|
|
DC_UNCONFIGURED, /* always start out here */
|
|
NULL,
|
|
DC_CLS_MISC /* host adapters aren't special */
|
|
};
|
|
|
|
static char *bt_match __P((eisa_id_t type));
|
|
|
|
static char*
|
|
bt_match(type)
|
|
eisa_id_t type;
|
|
{
|
|
switch(type) {
|
|
case EISA_DEVICE_ID_BUSLOGIC_74X_B:
|
|
return ("Buslogic 74xB SCSI host adapter");
|
|
break;
|
|
case EISA_DEVICE_ID_BUSLOGIC_74X_C:
|
|
return ("Buslogic 74xC SCSI host adapter");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
bt_eisa_probe(void)
|
|
{
|
|
u_long iobase;
|
|
char intdef;
|
|
u_long irq;
|
|
struct eisa_device *e_dev = NULL;
|
|
int count;
|
|
|
|
count = 0;
|
|
while ((e_dev = eisa_match_dev(e_dev, bt_match))) {
|
|
u_char ioconf;
|
|
u_long port;
|
|
int irq;
|
|
iobase = e_dev->ioconf.iobase;
|
|
|
|
#ifdef MULTIPLE_IOSPACES
|
|
eisa_add_iospace(e_dev, iobase, BT_EISA_IOSIZE);
|
|
#endif
|
|
|
|
ioconf = inb(iobase + EISA_IOCONF);
|
|
/* Determine "ISA" I/O port */
|
|
switch (ioconf & PORTADDR) {
|
|
case PORT_330:
|
|
port = 0x330;
|
|
break;
|
|
case PORT_334:
|
|
port = 0x334;
|
|
break;
|
|
case PORT_230:
|
|
port = 0x230;
|
|
break;
|
|
case PORT_234:
|
|
port = 0x234;
|
|
break;
|
|
case PORT_130:
|
|
port = 0x130;
|
|
break;
|
|
case PORT_134:
|
|
port = 0x134;
|
|
break;
|
|
default:
|
|
/* Disabled */
|
|
printf("bt: Buslogic EISA Adapter at slot %d "
|
|
"has a disabled I/O port. Cannot "
|
|
"attach.\n", e_dev->ioconf.slot);
|
|
continue;
|
|
}
|
|
|
|
eisa_add_iospace(e_dev, port, BT_IOSIZE);
|
|
|
|
/* Determine our IRQ */
|
|
switch (ioconf & IRQ_CHANNEL) {
|
|
case INT_11:
|
|
irq = 11;
|
|
break;
|
|
case INT_10:
|
|
irq = 10;
|
|
break;
|
|
case INT_15:
|
|
irq = 15;
|
|
break;
|
|
case INT_12:
|
|
irq = 12;
|
|
break;
|
|
case INT_14:
|
|
irq = 14;
|
|
break;
|
|
case INT_9:
|
|
irq = 9;
|
|
break;
|
|
default:
|
|
/* Disabled */
|
|
printf("bt: Buslogic EISA Adapter at slot %d "
|
|
"has its IRQ disabled. Cannot "
|
|
"attach.\n", e_dev->ioconf.slot);
|
|
continue;
|
|
}
|
|
|
|
eisa_add_intr(e_dev, irq);
|
|
|
|
eisa_registerdev(e_dev, &bt_eisa_driver, &kdc_eisa_bt);
|
|
count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static int
|
|
bt_eisa_attach(e_dev)
|
|
struct eisa_device *e_dev;
|
|
{
|
|
struct bt_data *bt;
|
|
int unit = e_dev->unit;
|
|
int irq = ffs(e_dev->ioconf.irq) - 1;
|
|
#ifdef MULTIPLE_IOADDR
|
|
u_char level_intr = inb((e_dev->ioconf.iobase[1]) + EISA_IRQ_TYPE)
|
|
& LEVEL;
|
|
#else
|
|
u_char level_intr = inb((e_dev->ioconf.slot * 0x1c00) + EISA_IRQ_TYPE)
|
|
& LEVEL;
|
|
#endif
|
|
|
|
eisa_reg_start(e_dev);
|
|
if(eisa_reg_iospace(e_dev, e_dev->ioconf.iobase, BT_IOSIZE)) {
|
|
return -1;
|
|
}
|
|
|
|
#ifdef MULTIPLE_IOADDR
|
|
/* Almost like this. Will depend on the definition of iobase */
|
|
if(eisa_reg_iospace(e_dev, e_dev->ioconf.iobase[1], BT_EISA_IOSIZE)) {
|
|
return -1;
|
|
#endif
|
|
if(!(bt = bt_alloc(unit, e_dev->ioconf.iobase))) {
|
|
return -1;
|
|
}
|
|
|
|
if(eisa_reg_intr(e_dev, irq, bt_intr, (void *)bt, &bio_imask,
|
|
/*shared ==*/level_intr)) {
|
|
bt_free(bt);
|
|
return -1;
|
|
}
|
|
eisa_reg_end(e_dev);
|
|
|
|
/*
|
|
* Now that we know we own the resources we need, do the full
|
|
* card initialization.
|
|
*/
|
|
if(bt_init(bt)){
|
|
bt_free(bt);
|
|
/*
|
|
* The board's IRQ line will not be left enabled
|
|
* if we can't intialize correctly, so its safe
|
|
* to release the irq.
|
|
*/
|
|
eisa_release_intr(e_dev, irq, bt_intr);
|
|
return -1;
|
|
}
|
|
|
|
e_dev->kdc->kdc_state = DC_BUSY; /* host adapters always busy */
|
|
|
|
/* Attach sub-devices - always succeeds */
|
|
bt_attach(bt);
|
|
|
|
if(eisa_enable_intr(e_dev, irq)) {
|
|
bt_free(bt);
|
|
eisa_release_intr(e_dev, irq, bt_intr);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* NEISA > 0 */
|