1 /* $NetBSD: iha_pci.c,v 1.1 2001/06/03 13:43:48 tsutsui Exp $ */ 2 /* 3 * Initio INI-9xxxU/UW SCSI Device Driver 4 * 5 * Copyright (c) 2000 Ken Westerback 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 23 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27 * THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 *------------------------------------------------------------------------- 30 * 31 * Ported from i91u.c, provided by Initio Corporation, which credits: 32 * 33 * Device driver for the INI-9XXXU/UW or INIC-940/950 PCI SCSI Controller. 34 * 35 * FreeBSD 36 * 37 * Written for 386bsd and FreeBSD by 38 * Winston Hung <winstonh@initio.com> 39 * 40 * Copyright (c) 1997-99 Initio Corp. All rights reserved. 41 * 42 *------------------------------------------------------------------------- 43 */ 44 45 /* 46 * Ported to NetBSD by Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> from OpenBSD: 47 * $OpenBSD: iha_pci.c,v 1.2 2001/03/29 23:53:38 krw Exp $ 48 */ 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/device.h> 53 54 #include <dev/pci/pcidevs.h> 55 #include <dev/pci/pcivar.h> 56 57 #include <dev/scsipi/scsipi_all.h> 58 #include <dev/scsipi/scsi_all.h> 59 #include <dev/scsipi/scsiconf.h> 60 61 #include <dev/ic/ihavar.h> 62 63 static int iha_pci_probe(struct device *, struct cfdata *, void *); 64 static void iha_pci_attach(struct device *, struct device *, void *); 65 66 struct cfattach iha_pci_ca = { 67 sizeof(struct iha_softc), iha_pci_probe, iha_pci_attach 68 }; 69 70 static int 71 iha_pci_probe(parent, match, aux) 72 struct device *parent; 73 struct cfdata *match; 74 void *aux; 75 { 76 struct pci_attach_args *pa = aux; 77 78 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO) 79 return (0); 80 81 switch (PCI_PRODUCT(pa->pa_id)) { 82 case PCI_PRODUCT_INITIO_I940: 83 case PCI_PRODUCT_INITIO_I950: 84 return (1); 85 } 86 87 return (0); 88 } 89 90 static void 91 iha_pci_attach(parent, self, aux) 92 struct device *parent; 93 struct device *self; 94 void *aux; 95 { 96 struct pci_attach_args *pa = aux; 97 bus_space_tag_t iot; 98 bus_space_handle_t ioh; 99 pci_intr_handle_t ih; 100 struct iha_softc *sc = (struct iha_softc *)self; 101 const char *intrstr; 102 pcireg_t command; 103 int ioh_valid; 104 char devinfo[256]; 105 106 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 107 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 108 109 command = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG); 110 command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE; 111 112 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 113 114 /* 115 * XXX - Tried memory mapping (using code from adw and ahc) 116 * rather that IO mapping, but it didn't work at all.. 117 */ 118 ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0, 119 &iot, &ioh, NULL, NULL); 120 121 if (ioh_valid != 0) { 122 printf("%s: unable to map registers\n", sc->sc_dev.dv_xname); 123 return; 124 } 125 126 sc->sc_iot = iot; 127 sc->sc_ioh = ioh; 128 sc->sc_dmat = pa->pa_dmat; 129 130 if (pci_intr_map(pa, &ih)) { 131 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 132 return; 133 } 134 intrstr = pci_intr_string(pa->pa_pc, ih); 135 136 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, iha_intr, sc); 137 138 if (sc->sc_ih == NULL) { 139 printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname); 140 if (intrstr != NULL) 141 printf(" at %s", intrstr); 142 printf("\n"); 143 return; 144 } 145 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 146 147 iha_attach(sc); 148 } 149