/* $OpenBSD: i82365_pci.c,v 1.17 2024/09/04 07:54:52 mglocker Exp $ */ /* $NetBSD: i82365_pci.c,v 1.11 2000/02/24 03:42:44 itohy 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 #include #include #include #include #include #include #include #include #include /* * PCI constants. * XXX These should be in a common file! */ #define PCI_CBIO 0x10 /* Configuration Base IO Address */ int pcic_pci_match(struct device *, void *, void *); void pcic_pci_attach(struct device *, struct device *, void *); const struct cfattach pcic_pci_ca = { sizeof(struct pcic_pci_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, /* XXX */ pcic_isa_chip_intr_establish, pcic_isa_chip_intr_disestablish, pcic_isa_chip_intr_string, pcic_chip_socket_enable, pcic_chip_socket_disable, }; int pcic_pci_match(struct device *parent, void *match, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *) aux; if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CIRRUS && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CL_PD6729) return (1); return (0); } 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 pcic_handle *h; 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; bus_size_t size; int irq, i; if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &sc->iot, &sc->ioh, NULL, &size, 0)) { 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, 0x10000, 0, &memh)) { printf(": can't map mem space"); bus_space_unmap(sc->iot, sc->ioh, size); return; } sc->membase = 0xd0000; sc->subregionmask = (1 << (0x10000 / 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; printf("\n"); pcic_attach(sc); pcic_attach_sockets(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)) { printf("%s: PCI interrupts not supported\n", sc->dev.dv_xname); return; } psc->intr_est = pcic_pci_machdep_intr_est(pc); irq = pcic_intr_find(sc, IST_EDGE); /* Map and establish the interrupt. */ if (irq) { sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr); if (sc->ih == NULL) { printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); bus_space_unmap(memt, memh, 0x10000); bus_space_unmap(sc->iot, sc->ioh, size); return; } } sc->irq = irq; if (irq) { printf("%s: irq %d, ", sc->dev.dv_xname, irq); /* Set up the pcic to interrupt on card detect. */ for (i = 0; i < PCIC_NSLOTS; i++) { h = &sc->handle[i]; if (h->flags & PCIC_FLAG_SOCKETP) { pcic_write(h, PCIC_CSC_INTR, (sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) | PCIC_CSC_INTR_CD_ENABLE); } } } else printf("%s: no irq, ", sc->dev.dv_xname); printf("polling enabled\n"); if (sc->poll_established == 0) { timeout_set(&sc->poll_timeout, pcic_poll_intr, sc); timeout_add_msec(&sc->poll_timeout, 500); sc->poll_established = 1; } }