1 /* $NetBSD: iha_pci.c,v 1.3 2001/11/13 07:48:45 lukem 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/cdefs.h> 51 __KERNEL_RCSID(0, "$NetBSD: iha_pci.c,v 1.3 2001/11/13 07:48:45 lukem Exp $"); 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/device.h> 56 57 #include <uvm/uvm_extern.h> 58 59 #include <dev/pci/pcidevs.h> 60 #include <dev/pci/pcivar.h> 61 62 #include <dev/scsipi/scsipi_all.h> 63 #include <dev/scsipi/scsi_all.h> 64 #include <dev/scsipi/scsiconf.h> 65 66 #include <dev/ic/ihavar.h> 67 68 static int iha_pci_probe(struct device *, struct cfdata *, void *); 69 static void iha_pci_attach(struct device *, struct device *, void *); 70 71 struct cfattach iha_pci_ca = { 72 sizeof(struct iha_softc), iha_pci_probe, iha_pci_attach 73 }; 74 75 static int 76 iha_pci_probe(parent, match, aux) 77 struct device *parent; 78 struct cfdata *match; 79 void *aux; 80 { 81 struct pci_attach_args *pa = aux; 82 83 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO) 84 return (0); 85 86 switch (PCI_PRODUCT(pa->pa_id)) { 87 case PCI_PRODUCT_INITIO_I940: 88 case PCI_PRODUCT_INITIO_I950: 89 return (1); 90 } 91 92 return (0); 93 } 94 95 static void 96 iha_pci_attach(parent, self, aux) 97 struct device *parent; 98 struct device *self; 99 void *aux; 100 { 101 struct pci_attach_args *pa = aux; 102 bus_space_tag_t iot; 103 bus_space_handle_t ioh; 104 pci_intr_handle_t ih; 105 struct iha_softc *sc = (struct iha_softc *)self; 106 const char *intrstr; 107 pcireg_t command; 108 int ioh_valid; 109 char devinfo[256]; 110 111 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 112 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 113 114 command = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG); 115 command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE; 116 117 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 118 119 /* 120 * XXX - Tried memory mapping (using code from adw and ahc) 121 * rather that IO mapping, but it didn't work at all.. 122 */ 123 ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0, 124 &iot, &ioh, NULL, NULL); 125 126 if (ioh_valid != 0) { 127 printf("%s: unable to map registers\n", sc->sc_dev.dv_xname); 128 return; 129 } 130 131 sc->sc_iot = iot; 132 sc->sc_ioh = ioh; 133 sc->sc_dmat = pa->pa_dmat; 134 135 if (pci_intr_map(pa, &ih)) { 136 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 137 return; 138 } 139 intrstr = pci_intr_string(pa->pa_pc, ih); 140 141 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, iha_intr, sc); 142 143 if (sc->sc_ih == NULL) { 144 printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname); 145 if (intrstr != NULL) 146 printf(" at %s", intrstr); 147 printf("\n"); 148 return; 149 } 150 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 151 152 iha_attach(sc); 153 } 154