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/*
* Product specific probe and attach routines for:
* 294X and aic7870 motherboard 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: aic7870.c,v 1.8 1995/03/31 14:08:33 gibbs Exp $
*/
#include <pci.h>
#if NPCI > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <i386/scsi/aic7xxx.h>
#define PCI_BASEADR0 PCI_MAP_REG_START
#define PCI_DEVICE_ID_ADAPTEC_2940 0x71789004ul
#define PCI_DEVICE_ID_ADAPTEC_AIC7870 0x70789004ul
static char* aic7870_probe __P((pcici_t tag, pcidi_t type));
void aic7870_attach __P((pcici_t config_id, int unit));
static u_long aic7870_count;
struct pci_device ahc_device = {
"ahc",
aic7870_probe,
aic7870_attach,
&aic7870_count,
NULL
};
DATA_SET (pcidevice_set, ahc_device);
static char*
aic7870_probe (pcici_t tag, pcidi_t type)
{
switch(type) {
case PCI_DEVICE_ID_ADAPTEC_2940:
return ("Adaptec 294X SCSI host adapter");
break;
case PCI_DEVICE_ID_ADAPTEC_AIC7870:
return ("Adaptec aic7870 SCSI host adapter");
break;
default:
break;
}
return (0);
}
void
aic7870_attach(config_id, unit)
pcici_t config_id;
int unit;
{
u_long io_port;
unsigned opri = 0;
ahc_type ahc_t = AHC_NONE;
if(!(io_port = pci_conf_read(config_id, PCI_BASEADR0)))
return;
/*
* Make the offsets the same as for EISA
* The first bit of PCI_BASEADR0 is always
* set hence we subtract 0xc01 instead of the
* 0xc00 that you would expect.
*/
io_port -= 0xc01ul;
switch (pci_conf_read (config_id, PCI_ID_REG)) {
case PCI_DEVICE_ID_ADAPTEC_2940:
ahc_t = AHC_294;
break;
case PCI_DEVICE_ID_ADAPTEC_AIC7870:
ahc_t = AHC_AIC7870;
break;
default:
break;
}
if(ahcprobe(unit, io_port, ahc_t)){
ahc_unit++;
/*
* To be compatible with the isa style of
* interrupt handler, we pass the unit number
* not a pointer to our per device structure.
*/
if(!(pci_map_int(config_id, ahcintr, (void *)unit,
&bio_imask))) {
free(ahcdata[unit], M_TEMP);
ahcdata[unit] = NULL;
return;
}
/*
* Since ahc_attach will poll, protect ourself
* from the registered interrupt handler.
*/
opri = splbio();
ahc_attach(unit);
splx(opri);
}
return;
}
#endif /* NPCI > 0 */
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