1 /* $OpenBSD: twe_pci.c,v 1.14 2021/03/05 12:40:13 jsg Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Michael Shalayeff 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26 * THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 #include <sys/malloc.h> 33 #include <sys/device.h> 34 35 #include <dev/pci/pcidevs.h> 36 #include <dev/pci/pcivar.h> 37 38 #include <machine/bus.h> 39 40 #include <scsi/scsi_all.h> 41 #include <scsi/scsi_disk.h> 42 #include <scsi/scsiconf.h> 43 44 #include <dev/ic/twereg.h> 45 #include <dev/ic/twevar.h> 46 47 #define TWE_BAR 0x10 48 49 int twe_pci_match(struct device *, void *, void *); 50 void twe_pci_attach(struct device *, struct device *, void *); 51 52 struct cfattach twe_pci_ca = { 53 sizeof(struct twe_softc), twe_pci_match, twe_pci_attach 54 }; 55 56 const struct pci_matchid twe_pci_devices[] = { 57 { PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE }, 58 { PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE_ASIC } 59 }; 60 61 int 62 twe_pci_match(struct device *parent, void *match, void *aux) 63 { 64 return (pci_matchbyid((struct pci_attach_args *)aux, twe_pci_devices, 65 nitems(twe_pci_devices))); 66 } 67 68 void 69 twe_pci_attach(struct device *parent, struct device *self, void *aux) 70 { 71 struct twe_softc *sc = (struct twe_softc *)self; 72 struct pci_attach_args *pa = aux; 73 pci_intr_handle_t ih; 74 const char *intrstr; 75 bus_size_t size; 76 77 if (pci_mapreg_map(pa, TWE_BAR, PCI_MAPREG_TYPE_IO, 0, 78 &sc->iot, &sc->ioh, NULL, &size, 0)) { 79 printf(": can't map controller i/o space\n"); 80 return; 81 } 82 sc->dmat = pa->pa_dmat; 83 84 if (pci_intr_map(pa, &ih)) { 85 printf(": can't map interrupt\n"); 86 bus_space_unmap(sc->iot, sc->ioh, size); 87 return; 88 } 89 intrstr = pci_intr_string(pa->pa_pc, ih); 90 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, twe_intr, sc, 91 sc->sc_dev.dv_xname); 92 if (!sc->sc_ih) { 93 printf(": can't establish interrupt"); 94 if (intrstr) 95 printf(" at %s", intrstr); 96 printf("\n"); 97 bus_space_unmap(sc->iot, sc->ioh, size); 98 return; 99 } 100 101 printf(": %s\n%s", intrstr, sc->sc_dev.dv_xname); 102 103 if (twe_attach(sc)) { 104 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 105 sc->sc_ih = NULL; 106 bus_space_unmap(sc->iot, sc->ioh, size); 107 } 108 } 109