1 /* $OpenBSD: twe_pci.c,v 1.6 2002/03/14 01:27:00 millert Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Michael Shalayeff 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Michael Shalayeff. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/malloc.h> 38 #include <sys/device.h> 39 40 #include <dev/pci/pcidevs.h> 41 #include <dev/pci/pcivar.h> 42 43 #include <machine/bus.h> 44 45 #include <scsi/scsi_all.h> 46 #include <scsi/scsi_disk.h> 47 #include <scsi/scsiconf.h> 48 49 #include <dev/ic/twereg.h> 50 #include <dev/ic/twevar.h> 51 52 #define TWE_BAR 0x10 53 54 int twe_pci_match(struct device *, void *, void *); 55 void twe_pci_attach(struct device *, struct device *, void *); 56 57 struct cfattach twe_pci_ca = { 58 sizeof(struct twe_softc), twe_pci_match, twe_pci_attach 59 }; 60 61 int 62 twe_pci_match(parent, match, aux) 63 struct device *parent; 64 void *match; 65 void *aux; 66 { 67 struct pci_attach_args *pa = aux; 68 69 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TRIWARE && 70 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TRIWARE_ESCALADE || 71 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TRIWARE_ESCALADE_ASIC)) 72 return 1; 73 74 return 0; 75 } 76 77 void 78 twe_pci_attach(parent, self, aux) 79 struct device *parent, *self; 80 void *aux; 81 { 82 struct twe_softc *sc = (struct twe_softc *)self; 83 struct pci_attach_args *pa = aux; 84 pci_intr_handle_t ih; 85 const char *intrstr; 86 bus_size_t size; 87 pcireg_t csr; 88 89 if (pci_mapreg_map(pa, TWE_BAR, PCI_MAPREG_TYPE_IO, 0, 90 &sc->iot, &sc->ioh, NULL, &size, 0)) { 91 printf(": can't map controller i/o space\n"); 92 return; 93 } 94 sc->dmat = pa->pa_dmat; 95 96 /* enable bus mastering (should not it be mi?) */ 97 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 98 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 99 csr | PCI_COMMAND_MASTER_ENABLE); 100 101 if (pci_intr_map(pa, &ih)) { 102 printf(": can't map interrupt\n"); 103 bus_space_unmap(sc->iot, sc->ioh, size); 104 return; 105 } 106 intrstr = pci_intr_string(pa->pa_pc, ih); 107 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, twe_intr, sc, 108 sc->sc_dev.dv_xname); 109 if (!sc->sc_ih) { 110 printf(": can't establish interrupt"); 111 if (intrstr) 112 printf(" at %s", intrstr); 113 printf("\n"); 114 bus_space_unmap(sc->iot, sc->ioh, size); 115 } 116 117 printf(": %s\n%s", intrstr, sc->sc_dev.dv_xname); 118 119 if (twe_attach(sc)) { 120 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 121 sc->sc_ih = NULL; 122 bus_space_unmap(sc->iot, sc->ioh, size); 123 } 124 } 125