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/* $OpenBSD: sio.c,v 1.36 2010/06/06 11:26:11 miod Exp $ */
/* $NetBSD: sio.c,v 1.15 1996/12/05 01:39:36 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>
#include "eisa.h"
#include "isadma.h"
struct sio_softc {
struct device sc_dv;
bus_space_tag_t sc_iot, sc_memt;
bus_dma_tag_t sc_dmat;
int sc_haseisa;
};
int siomatch(struct device *, void *, void *);
void sioattach(struct device *, struct device *, void *);
extern int sio_intr_alloc(isa_chipset_tag_t *, int, int, int *);
struct cfattach sio_ca = {
sizeof(struct sio_softc), siomatch, sioattach,
};
struct cfdriver sio_cd = {
NULL, "sio", DV_DULL,
};
int pcebmatch(struct device *, void *, void *);
struct cfattach pceb_ca = {
sizeof(struct sio_softc), 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(void *, const char *pnp);
void sio_isa_attach_hook(struct device *, struct device *,
struct isabus_attach_args *);
void sio_eisa_attach_hook(struct device *, struct device *,
struct eisabus_attach_args *);
int sio_eisa_intr_map(void *, u_int, eisa_intr_handle_t *);
void sio_bridge_callback(struct device *);
int
siomatch(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CONTAQ &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CONTAQ_82C693 &&
pa->pa_function == 0)
return (1);
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_SIO)
return (1);
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ALI &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ALI_M1533)
return(1);
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ALI &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ALI_M1543)
return(1);
return (0);
}
int
pcebmatch(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
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 (1);
return (0);
}
void
sioattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sio_softc *sc = (struct sio_softc *)self;
struct pci_attach_args *pa = aux;
printf("\n");
sc->sc_iot = pa->pa_iot;
sc->sc_memt = pa->pa_memt;
sc->sc_dmat = pa->pa_dmat;
sc->sc_haseisa = (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PCEB);
config_defer(self, sio_bridge_callback);
}
void
sio_bridge_callback(self)
struct device *self;
{
struct sio_softc *sc = (struct sio_softc *)self;
struct alpha_eisa_chipset ec;
struct alpha_isa_chipset ic;
union sio_attach_args sa;
if (sc->sc_haseisa) {
ec.ec_v = NULL;
ec.ec_maxslots = 0; /* will be filled by attach_hook */
ec.ec_attach_hook = sio_eisa_attach_hook;
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_iot = sc->sc_iot;
sa.sa_eba.eba_memt = sc->sc_memt;
sa.sa_eba.eba_dmat =
alphabus_dma_get_tag(sc->sc_dmat, ALPHA_BUS_EISA);
sa.sa_eba.eba_ec = &ec;
config_found(&sc->sc_dv, &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;
ic.ic_intr_alloc = sio_intr_alloc;
sa.sa_iba.iba_busname = "isa";
sa.sa_iba.iba_iot = sc->sc_iot;
sa.sa_iba.iba_memt = sc->sc_memt;
#if NISADMA > 0
sa.sa_iba.iba_dmat =
alphabus_dma_get_tag(sc->sc_dmat, ALPHA_BUS_ISA);
#endif
sa.sa_iba.iba_ic = ⁣
config_found(&sc->sc_dv, &sa.sa_iba, sioprint);
}
int
sioprint(aux, pnp)
void *aux;
const 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;
{
#if NEISA > 0
eisa_init(eba->eba_ec);
#endif
}
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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