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/* $NetBSD: sio.c,v 1.8 1996/04/13 00:23:34 cgd Exp $ */
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <dev/isa/isavar.h>
#include <dev/eisa/eisavar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <alpha/pci/siovar.h>
int siomatch __P((struct device *, void *, void *));
void sioattach __P((struct device *, struct device *, void *));
struct cfattach sio_ca = {
sizeof(struct device), siomatch, sioattach,
};
struct cfdriver sio_cd = {
NULL, "sio", DV_DULL,
};
int pcebmatch __P((struct device *, void *, void *));
struct cfattach pceb_ca = {
sizeof(struct device), pcebmatch, sioattach,
};
struct cfdriver pceb_cd = {
NULL, "pceb", DV_DULL,
};
union sio_attach_args {
const char *sa_name; /* XXX should be common */
struct isabus_attach_args sa_iba;
struct eisabus_attach_args sa_eba;
};
int sioprint __P((void *, char *pnp));
void sio_isa_attach_hook __P((struct device *, struct device *,
struct isabus_attach_args *));
void sio_eisa_attach_hook __P((struct device *, struct device *,
struct eisabus_attach_args *));
int sio_eisa_maxslots __P((void *));
int sio_eisa_intr_map __P((void *, u_int, eisa_intr_handle_t *));
int
siomatch(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct cfdata *cf = match;
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL ||
PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_INTEL_SIO)
return (0);
return (1);
}
int
pcebmatch(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct cfdata *cf = match;
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL ||
PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_INTEL_PCEB)
return (0);
return (1);
}
void
sioattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pci_attach_args *pa = aux;
struct alpha_isa_chipset ic;
struct alpha_eisa_chipset ec;
union sio_attach_args sa;
int sio, haseisa;
char devinfo[256];
sio = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_SIO);
haseisa = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PCEB);
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
printf(": %s (rev. 0x%02x)\n", devinfo,
PCI_REVISION(pa->pa_class));
if (sio) {
pci_revision_t rev;
rev = PCI_REVISION(pa->pa_class);
if (rev < 3)
printf("%s: WARNING: SIO I SUPPORT UNTESTED\n",
self->dv_xname);
}
#ifdef EVCNT_COUNTERS
evcnt_attach(self, "intr", &sio_intr_evcnt);
#endif
if (haseisa) {
ec.ec_v = NULL;
ec.ec_attach_hook = sio_eisa_attach_hook;
ec.ec_maxslots = sio_eisa_maxslots;
ec.ec_intr_map = sio_eisa_intr_map;
ec.ec_intr_string = sio_intr_string;
ec.ec_intr_establish = sio_intr_establish;
ec.ec_intr_disestablish = sio_intr_disestablish;
sa.sa_eba.eba_busname = "eisa";
sa.sa_eba.eba_bc = pa->pa_bc;
sa.sa_eba.eba_ec = &ec;
config_found(self, &sa.sa_eba, sioprint);
}
ic.ic_v = NULL;
ic.ic_attach_hook = sio_isa_attach_hook;
ic.ic_intr_establish = sio_intr_establish;
ic.ic_intr_disestablish = sio_intr_disestablish;
sa.sa_iba.iba_busname = "isa";
sa.sa_iba.iba_bc = pa->pa_bc;
sa.sa_iba.iba_ic = ⁣
config_found(self, &sa.sa_iba, sioprint);
}
int
sioprint(aux, pnp)
void *aux;
char *pnp;
{
register union sio_attach_args *sa = aux;
if (pnp)
printf("%s at %s", sa->sa_name, pnp);
return (UNCONF);
}
void
sio_isa_attach_hook(parent, self, iba)
struct device *parent, *self;
struct isabus_attach_args *iba;
{
/* Nothing to do. */
}
void
sio_eisa_attach_hook(parent, self, eba)
struct device *parent, *self;
struct eisabus_attach_args *eba;
{
/* Nothing to do. */
}
int
sio_eisa_maxslots(v)
void *v;
{
return 16; /* as good a number as any. only 8, maybe? */
}
int
sio_eisa_intr_map(v, irq, ihp)
void *v;
u_int irq;
eisa_intr_handle_t *ihp;
{
#define ICU_LEN 16 /* number of ISA IRQs (XXX) */
if (irq >= ICU_LEN) {
printf("sio_eisa_intr_map: bad IRQ %d\n", irq);
*ihp = -1;
return 1;
}
if (irq == 2) {
printf("sio_eisa_intr_map: changed IRQ 2 to IRQ 9\n");
irq = 9;
}
*ihp = irq;
return 0;
}
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