/* $NetBSD: i82365_pci.c,v 1.33 2012/10/27 17:18:32 chs 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 __KERNEL_RCSID(0, "$NetBSD: i82365_pci.c,v 1.33 2012/10/27 17:18:32 chs Exp $"); #include #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(device_t, cfdata_t, void *); void pcic_pci_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(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(device_t); int pcic_pci_match(device_t parent, cfdata_t match, void *aux) { struct pci_attach_args *pa = 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_pci_attach(device_t parent, device_t self, void *aux) { struct pcic_pci_softc *psc = device_private(self); struct pcic_softc *sc = &psc->sc_pcic; 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; sc->dev = self; 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 = &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(self, "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(self, "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(device_t self) { struct pcic_softc *sc = device_private(self); pcic_attach_sockets(sc); }