189 lines
5.4 KiB
C
189 lines
5.4 KiB
C
/* $NetBSD: aha284x.c,v 1.4 1996/04/11 22:28:04 cgd Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1996 Michael Graff. 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, 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Michael Graff.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <scsi/scsi_all.h>
|
|
#include <scsi/scsiconf.h>
|
|
|
|
#include <dev/isa/isavar.h>
|
|
|
|
#include <dev/ic/aic7xxxvar.h>
|
|
|
|
#include <machine/pio.h>
|
|
|
|
static int ahe_probe __P((struct device *, void *, void *));
|
|
static void ahe_attach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfattach ahe_ca = {
|
|
sizeof(struct ahc_softc), ahe_probe, ahe_attach
|
|
};
|
|
|
|
struct cfdriver ahe_cd = {
|
|
NULL, "ahe", DV_DULL
|
|
};
|
|
|
|
/*
|
|
* shouldn't this be in aic7xxxvar.h?
|
|
*/
|
|
int ahcintr __P((void *));
|
|
|
|
/*
|
|
* Standard EISA Host ID regs (Offset from slot base)
|
|
* These seem to work on the aha284x as well (VLB card)
|
|
*/
|
|
#define HID0 0xC80 /* 0,1: msb of ID2, 2-7: ID1 */
|
|
#define HID1 0xC81 /* 0-4: ID3, 5-7: LSB ID2 */
|
|
#define HID2 0xC82 /* product */
|
|
#define HID3 0xC83 /* firmware revision */
|
|
|
|
#define CHAR1(B1,B2) (((B1>>2) & 0x1F) | '@')
|
|
#define CHAR2(B1,B2) (((B1<<3) & 0x18) | ((B2>>5) & 0x7)|'@')
|
|
#define CHAR3(B1,B2) ((B2 & 0x1F) | '@')
|
|
|
|
typedef struct {
|
|
ahc_type type;
|
|
unsigned char id; /* The Last EISA Host ID reg */
|
|
} aic7770_sig;
|
|
|
|
aic7770_sig valid_ids[] = {
|
|
/* Entries of other tested adaptors should be added here */
|
|
{ AHC_274, 0x70 }, /*aic7770 on Motherboard*/
|
|
{ AHC_274, 0x71 }, /*274x*/
|
|
{ AHC_284, 0x56 }, /*284x, BIOS enabled*/
|
|
{ AHC_284, 0x57 } /*284x, BIOS disabled*/
|
|
};
|
|
|
|
int
|
|
ahe_probe(parent, match, aux)
|
|
struct device *parent;
|
|
void *match, *aux;
|
|
{
|
|
struct ahc_softc *ahc = match;
|
|
struct isa_attach_args *ia = aux;
|
|
|
|
char intdef;
|
|
int iobase;
|
|
u_char sig_id[4];
|
|
int i;
|
|
|
|
#ifdef NEWCONFIG
|
|
if (ia->ia_iobase == IOBASEUNK)
|
|
return 0;
|
|
#endif
|
|
|
|
/*
|
|
* Make the offsets the same as for EISA
|
|
*
|
|
* I have NO idea why the values in aic7xxx.c are all 0xc00 too
|
|
* high, but this hack fixes it. This is the same hack that's in
|
|
* the 294x pci code.
|
|
*/
|
|
iobase = ia->ia_iobase - 0xc00;
|
|
|
|
for (i = 0; i < sizeof(sig_id); i++) {
|
|
/*
|
|
* An outb is required to prime these
|
|
* registers on VL cards
|
|
*/
|
|
outb(iobase + HID0, HID0 + i);
|
|
sig_id[i] = inb(iobase + HID0 + i);
|
|
}
|
|
|
|
if (sig_id[0] == 0xff)
|
|
return 0;
|
|
|
|
if (CHAR1(sig_id[0], sig_id[1]) != 'A'
|
|
|| CHAR2(sig_id[0], sig_id[1]) != 'D'
|
|
|| CHAR3(sig_id[0], sig_id[1]) != 'P'
|
|
|| sig_id[2] != 0x77)
|
|
return 0;
|
|
|
|
ahc->type = 0;
|
|
|
|
for (i = 0; i < sizeof(valid_ids)/sizeof(aic7770_sig); i++)
|
|
if (sig_id[3] == valid_ids[i].id) {
|
|
ahc->type = valid_ids[i].type;
|
|
break;
|
|
}
|
|
|
|
if (ahc->type == 0)
|
|
printf("%s: Unknown board type 0x%02x\n",
|
|
ahc->sc_dev.dv_xname, sig_id[3]);
|
|
|
|
if (ahcprobe(ahc, iobase) == 0)
|
|
return 0;
|
|
|
|
/*
|
|
* set up some other isa variables and make certain the irq the
|
|
* card is set at matches the one in the configuration file,
|
|
* it is wa defined there
|
|
*/
|
|
|
|
ia->ia_iosize = 0x100; /* address range for the card */
|
|
|
|
if (ia->ia_irq == IRQUNK)
|
|
ia->ia_irq = ahc->sc_irq; /* probed from the card */
|
|
else
|
|
if (ia->ia_irq != ahc->sc_irq) {
|
|
printf("%s: irq mismatch; kernel configured %d != board configured %d\n",
|
|
ahc->sc_dev.dv_xname, ia->ia_irq, ahc->sc_irq);
|
|
return 0;
|
|
}
|
|
|
|
/* Must be ok... */
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
ahe_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct ahc_softc *ahc = (void *)self;
|
|
struct isa_attach_args *ia = aux;
|
|
|
|
#ifdef NEWCONFIG
|
|
isa_establish(&ahc->sc_id, &ahc->sc_dev);
|
|
#endif
|
|
ahc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
|
|
IPL_BIO, ahcintr, ahc);
|
|
|
|
/*
|
|
* attach the devices on the bus
|
|
*/
|
|
ahcattach(ahc);
|
|
}
|