| 1 | /* $NetBSD: iha_pci.c,v 1.19 2014/03/29 19:28:25 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2001 Izumi Tsutsui. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | |
| 27 | /*- |
| 28 | * Device driver for the INI-9XXXU/UW or INIC-940/950 PCI SCSI Controller. |
| 29 | * |
| 30 | * Written for 386bsd and FreeBSD by |
| 31 | * Winston Hung <winstonh@initio.com> |
| 32 | * |
| 33 | * Copyright (c) 1997-1999 Initio Corp. |
| 34 | * Copyright (c) 2000 Ken Westerback |
| 35 | * All rights reserved. |
| 36 | * |
| 37 | * Redistribution and use in source and binary forms, with or without |
| 38 | * modification, are permitted provided that the following conditions |
| 39 | * are met: |
| 40 | * 1. Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions and the following disclaimer, |
| 42 | * without modification, immediately at the beginning of the file. |
| 43 | * 2. The name of the author may not be used to endorse or promote products |
| 44 | * derived from this software without specific prior written permission. |
| 45 | * |
| 46 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 47 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 48 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 49 | * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, |
| 50 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 51 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 52 | * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 53 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 54 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 55 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| 56 | * THE POSSIBILITY OF SUCH DAMAGE. |
| 57 | */ |
| 58 | |
| 59 | /* |
| 60 | * Ported to NetBSD by Izumi Tsutsui <tsutsui@NetBSD.org> from OpenBSD: |
| 61 | * $OpenBSD: iha_pci.c,v 1.2 2001/03/29 23:53:38 krw Exp $ |
| 62 | */ |
| 63 | |
| 64 | #include <sys/cdefs.h> |
| 65 | __KERNEL_RCSID(0, "$NetBSD: iha_pci.c,v 1.19 2014/03/29 19:28:25 christos Exp $" ); |
| 66 | |
| 67 | #include <sys/param.h> |
| 68 | #include <sys/systm.h> |
| 69 | #include <sys/device.h> |
| 70 | |
| 71 | #include <dev/pci/pcidevs.h> |
| 72 | #include <dev/pci/pcivar.h> |
| 73 | |
| 74 | #include <dev/scsipi/scsipi_all.h> |
| 75 | #include <dev/scsipi/scsi_all.h> |
| 76 | #include <dev/scsipi/scsiconf.h> |
| 77 | |
| 78 | #include <dev/ic/ihavar.h> |
| 79 | |
| 80 | static int iha_pci_match(device_t, cfdata_t, void *); |
| 81 | static void iha_pci_attach(device_t, device_t, void *); |
| 82 | |
| 83 | CFATTACH_DECL_NEW(iha_pci, sizeof(struct iha_softc), |
| 84 | iha_pci_match, iha_pci_attach, NULL, NULL); |
| 85 | |
| 86 | static int |
| 87 | iha_pci_match(device_t parent, cfdata_t cf, void *aux) |
| 88 | { |
| 89 | struct pci_attach_args *pa = aux; |
| 90 | |
| 91 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO) |
| 92 | return 0; |
| 93 | |
| 94 | switch (PCI_PRODUCT(pa->pa_id)) { |
| 95 | case PCI_PRODUCT_INITIO_I940: |
| 96 | case PCI_PRODUCT_INITIO_I950: |
| 97 | return 1; |
| 98 | } |
| 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | static void |
| 104 | iha_pci_attach(device_t parent, device_t self, void *aux) |
| 105 | { |
| 106 | struct iha_softc *sc = device_private(self); |
| 107 | struct pci_attach_args *pa = aux; |
| 108 | bus_space_tag_t iot; |
| 109 | bus_space_handle_t ioh; |
| 110 | pci_intr_handle_t ih; |
| 111 | const char *intrstr; |
| 112 | pcireg_t command; |
| 113 | int ioh_valid; |
| 114 | char intrbuf[PCI_INTRSTR_LEN]; |
| 115 | |
| 116 | sc->sc_dev = self; |
| 117 | |
| 118 | pci_aprint_devinfo(pa, NULL); |
| 119 | |
| 120 | command = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG); |
| 121 | command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE; |
| 122 | |
| 123 | pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); |
| 124 | |
| 125 | /* |
| 126 | * XXX - Tried memory mapping (using code from adw and ahc) |
| 127 | * rather that IO mapping, but it didn't work at all.. |
| 128 | */ |
| 129 | ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0, |
| 130 | &iot, &ioh, NULL, NULL); |
| 131 | |
| 132 | if (ioh_valid != 0) { |
| 133 | aprint_error_dev(self, "unable to map registers\n" ); |
| 134 | return; |
| 135 | } |
| 136 | |
| 137 | sc->sc_iot = iot; |
| 138 | sc->sc_ioh = ioh; |
| 139 | sc->sc_dmat = pa->pa_dmat; |
| 140 | |
| 141 | if (pci_intr_map(pa, &ih)) { |
| 142 | aprint_error_dev(self, "couldn't map interrupt\n" ); |
| 143 | return; |
| 144 | } |
| 145 | intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf)); |
| 146 | |
| 147 | sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, iha_intr, sc); |
| 148 | |
| 149 | if (sc->sc_ih == NULL) { |
| 150 | aprint_error_dev(self, "couldn't establish interrupt" ); |
| 151 | if (intrstr != NULL) |
| 152 | aprint_error(" at %s" , intrstr); |
| 153 | aprint_error("\n" ); |
| 154 | return; |
| 155 | } |
| 156 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
| 157 | |
| 158 | iha_attach(sc); |
| 159 | } |
| 160 | |