1 /* $OpenBSD: twe_pci.c,v 1.7 2003/06/02 19:24:23 mickey 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 int 57 twe_pci_match(parent, match, aux) 58 struct device *parent; 59 void *match; 60 void *aux; 61 { 62 struct pci_attach_args *pa = aux; 63 64 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TRIWARE && 65 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TRIWARE_ESCALADE || 66 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TRIWARE_ESCALADE_ASIC)) 67 return 1; 68 69 return 0; 70 } 71 72 void 73 twe_pci_attach(parent, self, aux) 74 struct device *parent, *self; 75 void *aux; 76 { 77 struct twe_softc *sc = (struct twe_softc *)self; 78 struct pci_attach_args *pa = aux; 79 pci_intr_handle_t ih; 80 const char *intrstr; 81 bus_size_t size; 82 pcireg_t csr; 83 84 if (pci_mapreg_map(pa, TWE_BAR, PCI_MAPREG_TYPE_IO, 0, 85 &sc->iot, &sc->ioh, NULL, &size, 0)) { 86 printf(": can't map controller i/o space\n"); 87 return; 88 } 89 sc->dmat = pa->pa_dmat; 90 91 /* enable bus mastering (should not it be mi?) */ 92 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 93 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 94 csr | PCI_COMMAND_MASTER_ENABLE); 95 96 if (pci_intr_map(pa, &ih)) { 97 printf(": can't map interrupt\n"); 98 bus_space_unmap(sc->iot, sc->ioh, size); 99 return; 100 } 101 intrstr = pci_intr_string(pa->pa_pc, ih); 102 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, twe_intr, sc, 103 sc->sc_dev.dv_xname); 104 if (!sc->sc_ih) { 105 printf(": can't establish interrupt"); 106 if (intrstr) 107 printf(" at %s", intrstr); 108 printf("\n"); 109 bus_space_unmap(sc->iot, sc->ioh, size); 110 } 111 112 printf(": %s\n%s", intrstr, sc->sc_dev.dv_xname); 113 114 if (twe_attach(sc)) { 115 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 116 sc->sc_ih = NULL; 117 bus_space_unmap(sc->iot, sc->ioh, size); 118 } 119 } 120