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freebsd/sys/i386/eisa/bt74x.c
Gary Palmer c23670e294 Clean up -Wunused warnings. 
Reviewed by:		bde
1996-06-12 05:11:41 +00:00

378 lines
8.4 KiB
C
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/*
* 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 1.5 1996/02/26 01:01:41 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 EISA_DEVICE_ID_AMI_4801 0x05a94801
#define BT_IOSIZE 0x04 /* Move to central header */
#define BT_EISA_IOSIZE 0x100
#define BT_EISA_SLOT_OFFSET 0xc00
#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
/* Definitions for the AMI Series 48 controler */
#define AMI_EISA_IOSIZE 0x500 /* Two separate ranges?? */
#define AMI_EISA_SLOT_OFFSET 0x800
#define AMI_EISA_IOCONF 0x000
#define AMI_DMA_CHANNEL 0x03
#define AMI_IRQ_CHANNEL 0x1c
#define AMI_INT_15 0x14
#define AMI_INT_14 0x10
#define AMI_INT_12 0x0c
#define AMI_INT_11 0x00
#define AMI_INT_10 0x08
#define AMI_INT_9 0x04
#define AMI_BIOS_ADDR 0xe0
#define AMI_EISA_IOCONF1 0x001
#define AMI_PORTADDR 0x0e
#define AMI_PORT_334 0x08
#define AMI_PORT_330 0x00
#define AMI_PORT_234 0x0c
#define AMI_PORT_230 0x04
#define AMI_PORT_134 0x0a
#define AMI_PORT_130 0x02
#define AMI_IRQ_LEVEL 0x01
#define AMI_MISC2_OPTIONS 0x49E
#define AMI_ENABLE_ISA_DMA 0x08
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;
case EISA_DEVICE_ID_AMI_4801:
return ("AMI Series 48 SCSI host adapter");
break;
default:
break;
}
return (NULL);
}
static int
bt_eisa_probe(void)
{
u_long iobase;
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.slot * EISA_SLOT_SIZE);
if(e_dev->id == EISA_DEVICE_ID_AMI_4801) {
u_char ioconf1;
iobase += AMI_EISA_SLOT_OFFSET;
eisa_add_iospace(e_dev, iobase, AMI_EISA_IOSIZE,
RESVADDR_NONE);
ioconf = inb(iobase + AMI_EISA_IOCONF);
ioconf1 = inb(iobase + AMI_EISA_IOCONF1);
/* Determine "ISA" I/O port */
switch (ioconf1 & AMI_PORTADDR) {
case AMI_PORT_330:
port = 0x330;
break;
case AMI_PORT_334:
port = 0x334;
break;
case AMI_PORT_230:
port = 0x230;
break;
case AMI_PORT_234:
port = 0x234;
break;
case AMI_PORT_134:
port = 0x134;
break;
case AMI_PORT_130:
port = 0x130;
break;
default:
/* Disabled */
printf("bt: AMI 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, RESVADDR_NONE);
/* Determine our IRQ */
switch (ioconf & AMI_IRQ_CHANNEL) {
case AMI_INT_11:
irq = 11;
break;
case AMI_INT_10:
irq = 10;
break;
case AMI_INT_15:
irq = 15;
break;
case AMI_INT_12:
irq = 12;
break;
case AMI_INT_14:
irq = 14;
break;
case AMI_INT_9:
irq = 9;
break;
default:
/* Disabled */
printf("bt: AMI EISA Adapter at "
"slot %d has its IRQ disabled. "
"Cannot attach.\n",
e_dev->ioconf.slot);
continue;
}
}
else {
iobase += BT_EISA_SLOT_OFFSET;
eisa_add_iospace(e_dev, iobase, BT_EISA_IOSIZE,
RESVADDR_NONE);
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, RESVADDR_NONE);
/* 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;
resvaddr_t *ioport;
resvaddr_t *eisa_ioport;
u_char level_intr;
/*
* The addresses are sorted in increasing order
* so we know the port to pass to the core bt
* driver comes first.
*/
ioport = e_dev->ioconf.ioaddrs.lh_first;
if(!ioport)
return -1;
eisa_ioport = ioport->links.le_next;
if(!eisa_ioport)
return -1;
if(e_dev->id == EISA_DEVICE_ID_AMI_4801)
level_intr = inb(eisa_ioport->addr + AMI_EISA_IOCONF1)
& AMI_IRQ_LEVEL;
else
level_intr = inb(eisa_ioport->addr + EISA_IRQ_TYPE)
& LEVEL;
eisa_reg_start(e_dev);
if(eisa_reg_iospace(e_dev, ioport))
return -1;
if(eisa_reg_iospace(e_dev, eisa_ioport))
return -1;
if(!(bt = bt_alloc(unit, ioport->addr)))
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 */
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