/* $NetBSD: iop_pci.c,v 1.16 2005/12/11 12:22:50 christos Exp $ */ /*- * Copyright (c) 2000, 2001, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * 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 the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ /* * PCI front-end for `iop' driver. */ #include __KERNEL_RCSID(0, "$NetBSD: iop_pci.c,v 1.16 2005/12/11 12:22:50 christos Exp $"); #include "opt_i2o.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define PCI_INTERFACE_I2O_POLLED 0x00 #define PCI_INTERFACE_I2O_INTRDRIVEN 0x01 static void iop_pci_attach(struct device *, struct device *, void *); static int iop_pci_match(struct device *, struct cfdata *, void *); CFATTACH_DECL(iop_pci, sizeof(struct iop_softc), iop_pci_match, iop_pci_attach, NULL, NULL); static int iop_pci_match(struct device *parent, struct cfdata *match, void *aux) { struct pci_attach_args *pa; u_int product, vendor; pcireg_t reg; pa = aux; /* * Look for an "intelligent I/O processor" that adheres to the I2O * specification. Ignore the device if it doesn't support interrupt * driven operation. */ if (PCI_CLASS(pa->pa_class) == PCI_CLASS_I2O && PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_I2O_STANDARD && PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_I2O_INTRDRIVEN) return (1); /* * Match boards that don't conform exactly to the spec. */ vendor = PCI_VENDOR(pa->pa_id); product = PCI_PRODUCT(pa->pa_id); if (vendor == PCI_VENDOR_DPT && (product == PCI_PRODUCT_DPT_RAID_I2O || product == PCI_PRODUCT_DPT_RAID_2005S)) return (1); if (vendor == PCI_VENDOR_INTEL && (product == PCI_PRODUCT_INTEL_80960RM_2 || product == PCI_PRODUCT_INTEL_80960_RP)) { reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); if (PCI_VENDOR(reg) == PCI_VENDOR_PROMISE) return (1); } return (0); } static void iop_pci_attach(struct device *parent, struct device *self, void *aux) { struct pci_attach_args *pa; struct iop_softc *sc; pci_chipset_tag_t pc; pci_intr_handle_t ih; const char *intrstr; pcireg_t reg; int i; sc = (struct iop_softc *)self; pa = (struct pci_attach_args *)aux; pc = pa->pa_pc; printf(": "); /* * The kernel always uses the first memory mapping to communicate * with the IOP. */ for (i = PCI_MAPREG_START; i < PCI_MAPREG_END; i += 4) { reg = pci_conf_read(pc, pa->pa_tag, i); if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_MEM) { sc->sc_memaddr = PCI_MAPREG_MEM_ADDR(reg); break; } } if (i == PCI_MAPREG_END) { printf("can't find mapping\n"); return; } /* Map the register window. */ if (pci_mapreg_map(pa, i, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { printf("%s: can't map register window\n", sc->sc_dv.dv_xname); return; } /* Map the 2nd register window. */ if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DPT && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DPT_RAID_2005S) { i += 4; /* next BAR */ if (i == PCI_MAPREG_END) { printf("can't find mapping\n"); return; } #if 0 /* Should we check it? (see FreeBSD's asr driver) */ reg = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG); printf("subid %x, %x\n", PCI_VENDOR(reg), PCI_PRODUCT(reg)); #endif if (pci_mapreg_map(pa, i, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_msg_iot, &sc->sc_msg_ioh, NULL, NULL)) { printf("%s: can't map 2nd register window\n", sc->sc_dv.dv_xname); return; } } else { /* iop devices other than 2005S */ sc->sc_msg_iot = sc->sc_iot; sc->sc_msg_ioh = sc->sc_ioh; } sc->sc_pcibus = pa->pa_bus; sc->sc_pcidev = pa->pa_device; sc->sc_dmat = pa->pa_dmat; sc->sc_bus_memt = pa->pa_memt; sc->sc_bus_iot = pa->pa_iot; /* Enable the device. */ reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg | PCI_COMMAND_MASTER_ENABLE); /* Map and establish the interrupt. XXX IPL_BIO. */ if (pci_intr_map(pa, &ih)) { printf("can't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, iop_intr, sc); if (sc->sc_ih == NULL) { printf("can't establish interrupt"); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } /* Attach to the bus-independent code. */ iop_init(sc, intrstr); }