| 1 | /* $NetBSD: bha_pci.c,v 1.41 2016/10/13 17:11:09 jdolecek 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 1.41 2016/10/13 17:11:09 jdolecek 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 its address (slot) and call |
| 56 | * the actual probe routine to check it out. |
| 57 | */ |
| 58 | static int |
| 59 | bha_pci_match(device_t parent, cfdata_t match, void *aux) |
| 60 | { |
| 61 | struct pci_attach_args *pa = aux; |
| 62 | bus_space_tag_t iot; |
| 63 | bus_space_handle_t ioh; |
| 64 | bus_size_t iosize; |
| 65 | int rv; |
| 66 | |
| 67 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC) |
| 68 | return (0); |
| 69 | |
| 70 | if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC && |
| 71 | PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER) |
| 72 | return (0); |
| 73 | |
| 74 | if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, |
| 75 | NULL, &iosize)) |
| 76 | return (0); |
| 77 | |
| 78 | rv = bha_find(iot, ioh); |
| 79 | |
| 80 | bus_space_unmap(iot, ioh, iosize); |
| 81 | |
| 82 | return (rv); |
| 83 | } |
| 84 | |
| 85 | /* |
| 86 | * Attach all the sub-devices we can find |
| 87 | */ |
| 88 | static void |
| 89 | bha_pci_attach(device_t parent, device_t self, void *aux) |
| 90 | { |
| 91 | struct pci_attach_args *pa = aux; |
| 92 | struct bha_softc *sc = device_private(self); |
| 93 | bus_space_tag_t iot; |
| 94 | bus_space_handle_t ioh; |
| 95 | pci_chipset_tag_t pc = pa->pa_pc; |
| 96 | pci_intr_handle_t ih; |
| 97 | pcireg_t csr; |
| 98 | const char *model, *intrstr; |
| 99 | char intrbuf[PCI_INTRSTR_LEN]; |
| 100 | |
| 101 | sc->sc_dev = self; |
| 102 | |
| 103 | aprint_naive(": SCSI controller\n" ); |
| 104 | |
| 105 | if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC) |
| 106 | model = "BusLogic 9xxC SCSI" ; |
| 107 | else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER) |
| 108 | model = "BusLogic 9xxC SCSI" ; |
| 109 | else |
| 110 | model = "unknown model!" ; |
| 111 | aprint_normal(": %s\n" , model); |
| 112 | |
| 113 | if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, |
| 114 | NULL, NULL)) { |
| 115 | aprint_error_dev(sc->sc_dev, "unable to map device registers\n" ); |
| 116 | return; |
| 117 | } |
| 118 | |
| 119 | sc->sc_iot = iot; |
| 120 | sc->sc_ioh = ioh; |
| 121 | sc->sc_dmat = pa->pa_dmat; |
| 122 | if (!bha_find(iot, ioh)) |
| 123 | panic("bha_pci_attach: bha_find failed" ); |
| 124 | |
| 125 | sc->sc_dmaflags = 0; |
| 126 | |
| 127 | csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); |
| 128 | pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, |
| 129 | csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE); |
| 130 | |
| 131 | if (pci_intr_map(pa, &ih)) { |
| 132 | aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n" ); |
| 133 | return; |
| 134 | } |
| 135 | intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf)); |
| 136 | sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_BIO, bha_intr, sc, |
| 137 | device_xname(sc->sc_dev)); |
| 138 | if (sc->sc_ih == NULL) { |
| 139 | aprint_error_dev(sc->sc_dev, "couldn't establish interrupt" ); |
| 140 | if (intrstr != NULL) |
| 141 | aprint_error(" at %s" , intrstr); |
| 142 | aprint_error("\n" ); |
| 143 | return; |
| 144 | } |
| 145 | aprint_normal_dev(sc->sc_dev, "interrupting at %s\n" , intrstr); |
| 146 | |
| 147 | bha_attach(sc); |
| 148 | |
| 149 | bha_disable_isacompat(sc); |
| 150 | } |
| 151 | |
| 152 | CFATTACH_DECL_NEW(bha_pci, sizeof(struct bha_softc), |
| 153 | bha_pci_match, bha_pci_attach, NULL, NULL); |
| 154 | |