NetBSD/sys/dev/pci/i82365_pci.c

248 lines
6.7 KiB
C

/* $NetBSD: i82365_pci.c,v 1.4 1998/06/08 06:55:54 thorpej Exp $ */
/*
* Copyright (c) 1997 Marc Horowitz. 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 Marc Horowitz.
* 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/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/ic/i82365reg.h>
#include <dev/ic/i82365var.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
/*
* PCI constants.
* XXX These should be in a common file!
*/
#define PCI_CBIO 0x10 /* Configuration Base IO Address */
int pcic_pci_match __P((struct device *, struct cfdata *, void *));
void pcic_pci_attach __P((struct device *, struct device *, void *));
void *pcic_pci_chip_intr_establish __P((pcmcia_chipset_handle_t,
struct pcmcia_function *, int, int (*) (void *), void *));
void pcic_pci_chip_intr_disestablish __P((pcmcia_chipset_handle_t, void *));
struct cfattach pcic_pci_ca = {
sizeof(struct pcic_softc), pcic_pci_match, pcic_pci_attach
};
static struct pcmcia_chip_functions pcic_pci_functions = {
pcic_chip_mem_alloc,
pcic_chip_mem_free,
pcic_chip_mem_map,
pcic_chip_mem_unmap,
pcic_chip_io_alloc,
pcic_chip_io_free,
pcic_chip_io_map,
pcic_chip_io_unmap,
pcic_pci_chip_intr_establish,
pcic_pci_chip_intr_disestablish,
pcic_chip_socket_enable,
pcic_chip_socket_disable,
};
int
pcic_pci_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct pci_attach_args *pa = (struct pci_attach_args *) aux;
if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_CIRRUS)
return (0);
switch (PCI_PRODUCT(pa->pa_id)) {
case PCI_PRODUCT_CIRRUS_CL_GD6729:
break;
default:
return (0);
}
return (1);
}
void
pcic_pci_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pcic_softc *sc = (void *) self;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
bus_space_tag_t memt = pa->pa_memt;
bus_space_handle_t memh;
pci_intr_handle_t ih;
char *model;
const char *intrstr = NULL;
if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
&sc->iot, &sc->ioh, NULL, NULL)) {
printf(": can't map i/o space\n");
return;
}
/*
* XXX need some memory for mapping pcmcia cards into. Ideally, this
* would be completely dynamic. Practically this doesn't work,
* because the extent mapper doesn't know about all the devices all
* the time. With ISA we could finesse the issue by specifying the
* memory region in the config line. We can't do that here, so we
* cheat for now. Jason Thorpe, you are my Savior, come up with a fix
* :-)
*/
/* Map mem space. */
if (bus_space_map(memt, 0xd0000, 0x4000, 0, &memh))
panic("pcic_isa_attach: can't map i/o space");
sc->membase = 0xd0000;
sc->subregionmask = (1 << (0x4000 / PCIC_MEM_PAGESIZE)) - 1;
/* same deal for io allocation */
sc->iobase = 0x400;
sc->iosize = 0xbff;
/* end XXX */
sc->intr_est = pc;
sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions;
sc->memt = memt;
sc->memh = memh;
switch (PCI_PRODUCT(pa->pa_id)) {
case PCI_PRODUCT_CIRRUS_CL_GD6729:
model = "Cirrus Logic GD6729 PCMCIA controller";
break;
default:
model = "Model unknown";
break;
}
printf(": %s\n", model);
/* Enable the card. */
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
PCI_COMMAND_MASTER_ENABLE);
pcic_attach(sc);
/* Map and establish the interrupt. */
if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
pa->pa_intrline, &ih)) {
printf("%s: couldn't map interrupt\n", sc->dev.dv_xname);
return;
}
intrstr = pci_intr_string(pc, ih);
sc->ih = pci_intr_establish(pc, ih, IPL_NET, pcic_intr, sc);
if (sc->ih == NULL) {
printf("%s: couldn't establish interrupt",
sc->dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf("%s: interrupting at %s\n", sc->dev.dv_xname, intrstr);
pcic_attach_sockets(sc);
}
/*
* XXX This is almost totally wrong! We need to map to PCI interupts,
* XXX which themselves map to somthing else.
*/
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
void *
pcic_pci_chip_intr_establish(pch, pf, ipl, fct, arg)
pcmcia_chipset_handle_t pch;
struct pcmcia_function *pf;
int ipl;
int (*fct) (void *);
void *arg;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
pci_chipset_tag_t pc = h->sc->intr_est;
int irq;
pci_intr_handle_t piht;
void *ih;
int reg;
/*
* XXX this will work for x86, but is guaranteed to lose elsewhere.
* Hopefully Jason can bail me out of this one, too.
*/
isa_intr_alloc(NULL, 0xffff, IST_PULSE, &irq);
if (pci_intr_map(pc, pci_make_tag(NULL, 0, 0, 0),
1, irq, &piht)) {
printf("%s: couldn't map interrupt\n", h->sc->dev.dv_xname);
return (NULL);
}
if ((ih = pci_intr_establish(pc, piht, ipl, fct,
arg)) == NULL)
return (NULL);
reg = pcic_read(h, PCIC_INTR);
reg |= PCIC_INTR_ENABLE;
reg |= irq;
pcic_write(h, PCIC_INTR, reg);
printf("%s: card irq %d\n", h->pcmcia->dv_xname, irq);
return (ih);
}
void
pcic_pci_chip_intr_disestablish(pch, ih)
pcmcia_chipset_handle_t pch;
void *ih;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
pci_chipset_tag_t pc = h->sc->intr_est;
pci_intr_disestablish(pc, ih);
}