NetBSD-5.0.2/sys/dev/pci/i82365_pci.c
/* $NetBSD: i82365_pci.c,v 1.26 2008/06/26 12:33:17 drochner 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.
*/
/*
* XXX this driver frontend is *very* i386 dependent and should be relocated
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: i82365_pci.c,v 1.26 2008/06/26 12:33:17 drochner Exp $");
#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>
#include <dev/pci/i82365_pcivar.h>
#include <dev/isa/isavar.h>
#include <dev/isa/i82365_isavar.h>
/*
* PCI constants.
* XXX These should be in a common file!
*/
#define PCI_CBIO 0x10 /* Configuration Base IO Address */
int pcic_pci_match(struct device *, struct cfdata *, void *);
void pcic_pci_attach(struct device *, struct device *, void *);
CFATTACH_DECL(pcic_pci, sizeof(struct pcic_pci_softc),
pcic_pci_match, pcic_pci_attach, NULL, NULL);
static const 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,
/* XXX */
pcic_isa_chip_intr_establish,
pcic_isa_chip_intr_disestablish,
pcic_chip_socket_enable,
pcic_chip_socket_disable,
pcic_chip_socket_settype,
NULL, /* card_detect */
};
static void pcic_pci_callback(struct device *);
int
pcic_pci_match(struct device *parent, struct cfdata *match,
void *aux)
{
struct pci_attach_args *pa = (struct pci_attach_args *) aux;
switch (PCI_VENDOR(pa->pa_id)) {
case PCI_VENDOR_CIRRUS:
switch(PCI_PRODUCT(pa->pa_id)) {
case PCI_PRODUCT_CIRRUS_CL_PD6729:
break;
default:
return (0);
}
break;
default:
return (0);
}
return (1);
}
void pcic_isa_config_interrupts(struct device *);
void
pcic_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct pcic_softc *sc = (void *) self;
struct pcic_pci_softc *psc = (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;
const char *model;
aprint_naive(": PCMCIA controller\n");
if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
&sc->iot, &sc->ioh, NULL, NULL)) {
aprint_error(": 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_pci_attach: can't map mem 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->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_PD6729:
model = "Cirrus Logic PD6729 PCMCIA controller";
break;
default:
model = "Model unknown";
break;
}
aprint_normal(": %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);
/*
* Check to see if we're using PCI or ISA interrupts. I don't
* know of any i386 systems that use the 6729 in PCI interrupt
* mode, but maybe when the PCMCIA code runs on other platforms
* we'll need to fix this.
*/
pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX,
PCIC_CIRRUS_EXT_CONTROL_1);
if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) &
PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) {
aprint_error_dev(&sc->dev, "PCI interrupts not supported\n");
return;
}
psc->intr_est = pcic_pci_machdep_intr_est(pc);
sc->irq = -1;
#if 0
/* Map and establish the interrupt. */
sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr);
if (sc->ih == NULL) {
aprint_error_dev(&sc->dev, "couldn't map interrupt\n");
return;
}
#endif
/*
* Defer configuration of children until ISA has had its chance
* to use up whatever IO space and IRQs it wants. XXX This will
* only work if ISA is attached to a pcib, AND the PCI probe finds
* and defers the ISA attachment before this one.
*/
config_defer(self, pcic_pci_callback);
config_interrupts(self, pcic_isa_config_interrupts);
}
static void
pcic_pci_callback(self)
struct device *self;
{
struct pcic_softc *sc = (void *) self;
pcic_attach_sockets(sc);
}