254 lines
6.8 KiB
C
254 lines
6.8 KiB
C
/* $NetBSD: i82365_pci.c,v 1.2 1997/10/16 23:23:14 thorpej Exp $ */
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/*
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* Copyright (c) 1997 Marc Horowitz. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Marc Horowitz.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <dev/ic/i82365reg.h>
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#include <dev/ic/i82365var.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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/*
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* PCI constants.
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* XXX These should be in a common file!
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*/
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#define PCI_CBIO 0x10 /* Configuration Base IO Address */
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#ifdef __BROKEN_INDIRECT_CONFIG
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int pcic_pci_match __P((struct device *, void *, void *));
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#else
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int pcic_pci_match __P((struct device *, struct cfdata *, void *));
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#endif
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void pcic_pci_attach __P((struct device *, struct device *, void *));
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void *pcic_pci_chip_intr_establish __P((pcmcia_chipset_handle_t,
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struct pcmcia_function *, int, int (*) (void *), void *));
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void pcic_pci_chip_intr_disestablish __P((pcmcia_chipset_handle_t, void *));
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struct cfattach pcic_pci_ca = {
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sizeof(struct pcic_softc), pcic_pci_match, pcic_pci_attach
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};
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static struct pcmcia_chip_functions pcic_pci_functions = {
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pcic_chip_mem_alloc,
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pcic_chip_mem_free,
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pcic_chip_mem_map,
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pcic_chip_mem_unmap,
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pcic_chip_io_alloc,
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pcic_chip_io_free,
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pcic_chip_io_map,
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pcic_chip_io_unmap,
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pcic_pci_chip_intr_establish,
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pcic_pci_chip_intr_disestablish,
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pcic_chip_socket_enable,
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pcic_chip_socket_disable,
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};
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int
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pcic_pci_match(parent, match, aux)
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struct device *parent;
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#ifdef __BROKEN_INDIRECT_CONFIG
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void *match;
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#else
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struct cfdata *match;
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#endif
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void *aux;
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{
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struct pci_attach_args *pa = (struct pci_attach_args *) aux;
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if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_CIRRUS)
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return (0);
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switch (PCI_PRODUCT(pa->pa_id)) {
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case PCI_PRODUCT_CIRRUS_CL_GD6729:
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break;
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default:
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return (0);
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}
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return (1);
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}
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void
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pcic_pci_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pcic_softc *sc = (void *) self;
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struct pci_attach_args *pa = aux;
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pci_chipset_tag_t pc = pa->pa_pc;
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bus_space_tag_t memt = pa->pa_memt;
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bus_space_handle_t memh;
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pci_intr_handle_t ih;
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char *model;
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const char *intrstr = NULL;
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if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
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&sc->iot, &sc->ioh, NULL, NULL)) {
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printf(": can't map i/o space\n");
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return;
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}
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/*
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* XXX need some memory for mapping pcmcia cards into. Ideally, this
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* would be completely dynamic. Practically this doesn't work,
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* because the extent mapper doesn't know about all the devices all
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* the time. With ISA we could finesse the issue by specifying the
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* memory region in the config line. We can't do that here, so we
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* cheat for now. Jason Thorpe, you are my Savior, come up with a fix
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* :-)
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*/
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/* Map mem space. */
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if (bus_space_map(memt, 0xd0000, 0x4000, 0, &memh))
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panic("pcic_isa_attach: can't map i/o space");
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sc->membase = 0xd0000;
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sc->subregionmask = (1 << (0x4000 / PCIC_MEM_PAGESIZE)) - 1;
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/* same deal for io allocation */
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sc->iobase = 0x400;
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sc->iosize = 0xbff;
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/* end XXX */
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sc->intr_est = pc;
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sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions;
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sc->memt = memt;
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sc->memh = memh;
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switch (PCI_PRODUCT(pa->pa_id)) {
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case PCI_PRODUCT_CIRRUS_CL_GD6729:
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model = "Cirrus Logic GD6729 PCMCIA controller";
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break;
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default:
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model = "Model unknown";
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break;
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}
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printf(": %s\n", model);
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/* Enable the card. */
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pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
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PCI_COMMAND_MASTER_ENABLE);
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pcic_attach(sc);
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/* Map and establish the interrupt. */
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if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
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pa->pa_intrline, &ih)) {
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printf("%s: couldn't map interrupt\n", sc->dev.dv_xname);
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return;
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}
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intrstr = pci_intr_string(pc, ih);
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sc->ih = pci_intr_establish(pc, ih, IPL_NET, pcic_intr, sc);
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if (sc->ih == NULL) {
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printf("%s: couldn't establish interrupt",
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sc->dev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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printf("%s: interrupting at %s\n", sc->dev.dv_xname, intrstr);
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pcic_attach_sockets(sc);
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}
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/*
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* XXX This is almost totally wrong! We need to map to PCI interupts,
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* XXX which themselves map to somthing else.
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*/
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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void *
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pcic_pci_chip_intr_establish(pch, pf, ipl, fct, arg)
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pcmcia_chipset_handle_t pch;
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struct pcmcia_function *pf;
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int ipl;
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int (*fct) (void *);
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void *arg;
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{
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struct pcic_handle *h = (struct pcic_handle *) pch;
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int irq;
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pci_intr_handle_t piht;
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void *ih;
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int reg;
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/*
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* XXX this will work for x86, but is guaranteed to lose elsewhere.
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* Hopefully Jason can bail me out of this one, too.
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*/
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isa_intr_alloc(NULL, 0xffff, IST_PULSE, &irq);
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if (pci_intr_map(h->sc->intr_est, pci_make_tag(NULL, 0, 0, 0),
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1, irq, &piht)) {
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printf("%s: couldn't map interrupt\n", h->sc->dev.dv_xname);
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return (NULL);
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}
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if ((ih = pci_intr_establish(h->sc->intr_est, piht, ipl, fct,
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arg)) == NULL)
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return (NULL);
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reg = pcic_read(h, PCIC_INTR);
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reg |= PCIC_INTR_ENABLE;
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reg |= irq;
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pcic_write(h, PCIC_INTR, reg);
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printf("%s: card irq %d\n", h->pcmcia->dv_xname, irq);
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return (ih);
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}
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void
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pcic_pci_chip_intr_disestablish(pch, ih)
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pcmcia_chipset_handle_t pch;
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void *ih;
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{
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struct pcic_handle *h = (struct pcic_handle *) pch;
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pci_intr_disestablish(h->sc->intr_est, ih);
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}
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