207 lines
6.4 KiB
C
207 lines
6.4 KiB
C
/* $OpenBSD: i82365_pci.c,v 1.14 2022/03/11 18:00:45 mpi Exp $ */
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/* $NetBSD: i82365_pci.c,v 1.11 2000/02/24 03:42:44 itohy 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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/*
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* XXX this driver frontend is *very* i386 dependent and should be relocated
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.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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#include <dev/pci/i82365_pcivar.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/i82365_isavar.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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int pcic_pci_match(struct device *, void *, void *);
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void pcic_pci_attach(struct device *, struct device *, void *);
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const struct cfattach pcic_pci_ca = {
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sizeof(struct pcic_pci_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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/* XXX */
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pcic_isa_chip_intr_establish,
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pcic_isa_chip_intr_disestablish,
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pcic_isa_chip_intr_string,
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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(struct device *parent, void *match, 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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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CL_PD6729)
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return (1);
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return (0);
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}
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void pcic_isa_config_interrupts(struct device *);
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void
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pcic_pci_attach(struct device *parent, struct device *self, void *aux)
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{
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struct pcic_softc *sc = (void *) self;
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struct pcic_pci_softc *psc = (void *) self;
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struct pcic_handle *h;
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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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bus_size_t size;
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int irq, i;
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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, &size, 0)) {
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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, 0x10000, 0, &memh)) {
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printf(": can't map mem space");
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bus_space_unmap(sc->iot, sc->ioh, size);
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return;
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}
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sc->membase = 0xd0000;
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sc->subregionmask = (1 << (0x10000 / 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->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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printf("\n");
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pcic_attach(sc);
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pcic_attach_sockets(sc);
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/*
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* Check to see if we're using PCI or ISA interrupts. I don't
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* know of any i386 systems that use the 6729 in PCI interrupt
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* mode, but maybe when the PCMCIA code runs on other platforms
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* we'll need to fix this.
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*/
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pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX,
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PCIC_CIRRUS_EXT_CONTROL_1);
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if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) &
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PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) {
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printf("%s: PCI interrupts not supported\n",
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sc->dev.dv_xname);
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return;
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}
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psc->intr_est = pcic_pci_machdep_intr_est(pc);
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irq = pcic_intr_find(sc, IST_EDGE);
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/* Map and establish the interrupt. */
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if (irq) {
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sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr);
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if (sc->ih == NULL) {
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printf("%s: couldnt map interrupt\n", sc->dev.dv_xname);
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bus_space_unmap(memt, memh, 0x10000);
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bus_space_unmap(sc->iot, sc->ioh, size);
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return;
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}
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}
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sc->irq = irq;
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if (irq) {
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printf("%s: irq %d, ", sc->dev.dv_xname, irq);
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/* Set up the pcic to interrupt on card detect. */
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for (i = 0; i < PCIC_NSLOTS; i++) {
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h = &sc->handle[i];
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if (h->flags & PCIC_FLAG_SOCKETP) {
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pcic_write(h, PCIC_CSC_INTR,
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(sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) |
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PCIC_CSC_INTR_CD_ENABLE);
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}
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}
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} else
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printf("%s: no irq, ", sc->dev.dv_xname);
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printf("polling enabled\n");
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if (sc->poll_established == 0) {
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timeout_set(&sc->poll_timeout, pcic_poll_intr, sc);
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timeout_add_msec(&sc->poll_timeout, 500);
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sc->poll_established = 1;
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}
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}
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