1 /* $NetBSD: bha_pci.c,v 1.33 2008/04/28 20:23:54 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: bha_pci.c,v 1.33 2008/04/28 20:23:54 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 39 #include <sys/bus.h> 40 #include <sys/intr.h> 41 42 #include <dev/scsipi/scsipi_all.h> 43 #include <dev/scsipi/scsiconf.h> 44 45 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcidevs.h> 47 48 #include <dev/ic/bhareg.h> 49 #include <dev/ic/bhavar.h> 50 51 #define PCI_CBIO 0x10 52 53 /* 54 * Check the slots looking for a board we recognise 55 * If we find one, note it's address (slot) and call 56 * the actual probe routine to check it out. 57 */ 58 static int 59 bha_pci_match(struct device *parent, struct cfdata *match, 60 void *aux) 61 { 62 struct pci_attach_args *pa = aux; 63 bus_space_tag_t iot; 64 bus_space_handle_t ioh; 65 bus_size_t iosize; 66 int rv; 67 68 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC) 69 return (0); 70 71 if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC && 72 PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER) 73 return (0); 74 75 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, 76 NULL, &iosize)) 77 return (0); 78 79 rv = bha_find(iot, ioh); 80 81 bus_space_unmap(iot, ioh, iosize); 82 83 return (rv); 84 } 85 86 /* 87 * Attach all the sub-devices we can find 88 */ 89 static void 90 bha_pci_attach(struct device *parent, struct device *self, void *aux) 91 { 92 struct pci_attach_args *pa = aux; 93 struct bha_softc *sc = (void *)self; 94 bus_space_tag_t iot; 95 bus_space_handle_t ioh; 96 pci_chipset_tag_t pc = pa->pa_pc; 97 pci_intr_handle_t ih; 98 pcireg_t csr; 99 const char *model, *intrstr; 100 101 aprint_naive(": SCSI controller\n"); 102 103 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC) 104 model = "BusLogic 9xxC SCSI"; 105 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER) 106 model = "BusLogic 9xxC SCSI"; 107 else 108 model = "unknown model!"; 109 aprint_normal(": %s\n", model); 110 111 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, 112 NULL, NULL)) { 113 aprint_error_dev(&sc->sc_dev, "unable to map device registers\n"); 114 return; 115 } 116 117 sc->sc_iot = iot; 118 sc->sc_ioh = ioh; 119 sc->sc_dmat = pa->pa_dmat; 120 if (!bha_find(iot, ioh)) 121 panic("bha_pci_attach: bha_find failed"); 122 123 sc->sc_dmaflags = 0; 124 125 csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 126 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 127 csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE); 128 129 if (pci_intr_map(pa, &ih)) { 130 aprint_error_dev(&sc->sc_dev, "couldn't map interrupt\n"); 131 return; 132 } 133 intrstr = pci_intr_string(pc, ih); 134 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, bha_intr, sc); 135 if (sc->sc_ih == NULL) { 136 aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt"); 137 if (intrstr != NULL) 138 aprint_normal(" at %s", intrstr); 139 aprint_normal("\n"); 140 return; 141 } 142 aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr); 143 144 bha_attach(sc); 145 146 bha_disable_isacompat(sc); 147 } 148 149 CFATTACH_DECL(bha_pci, sizeof(struct bha_softc), 150 bha_pci_match, bha_pci_attach, NULL, NULL); 151