Annotation of sys/dev/pci/twe_pci.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: twe_pci.c,v 1.12 2006/08/25 04:35:03 brad 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: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 19: * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
! 20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
! 21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
! 22: * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
! 24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
! 25: * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
! 26: * THE POSSIBILITY OF SUCH DAMAGE.
! 27: */
! 28:
! 29: #include <sys/param.h>
! 30: #include <sys/systm.h>
! 31: #include <sys/kernel.h>
! 32: #include <sys/malloc.h>
! 33: #include <sys/device.h>
! 34:
! 35: #include <dev/pci/pcidevs.h>
! 36: #include <dev/pci/pcivar.h>
! 37:
! 38: #include <machine/bus.h>
! 39:
! 40: #include <scsi/scsi_all.h>
! 41: #include <scsi/scsi_disk.h>
! 42: #include <scsi/scsiconf.h>
! 43:
! 44: #include <dev/ic/twereg.h>
! 45: #include <dev/ic/twevar.h>
! 46:
! 47: #define TWE_BAR 0x10
! 48:
! 49: int twe_pci_match(struct device *, void *, void *);
! 50: void twe_pci_attach(struct device *, struct device *, void *);
! 51:
! 52: struct cfattach twe_pci_ca = {
! 53: sizeof(struct twe_softc), twe_pci_match, twe_pci_attach
! 54: };
! 55:
! 56: const struct pci_matchid twe_pci_devices[] = {
! 57: { PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE },
! 58: { PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE_ASIC }
! 59: };
! 60:
! 61: int
! 62: twe_pci_match(parent, match, aux)
! 63: struct device *parent;
! 64: void *match;
! 65: void *aux;
! 66: {
! 67: return (pci_matchbyid((struct pci_attach_args *)aux, twe_pci_devices,
! 68: sizeof(twe_pci_devices)/sizeof(twe_pci_devices[0])));
! 69: }
! 70:
! 71: void
! 72: twe_pci_attach(parent, self, aux)
! 73: struct device *parent, *self;
! 74: void *aux;
! 75: {
! 76: struct twe_softc *sc = (struct twe_softc *)self;
! 77: struct pci_attach_args *pa = aux;
! 78: pci_intr_handle_t ih;
! 79: const char *intrstr;
! 80: bus_size_t size;
! 81:
! 82: if (pci_mapreg_map(pa, TWE_BAR, PCI_MAPREG_TYPE_IO, 0,
! 83: &sc->iot, &sc->ioh, NULL, &size, 0)) {
! 84: printf(": can't map controller i/o space\n");
! 85: return;
! 86: }
! 87: sc->dmat = pa->pa_dmat;
! 88:
! 89: if (pci_intr_map(pa, &ih)) {
! 90: printf(": can't map interrupt\n");
! 91: bus_space_unmap(sc->iot, sc->ioh, size);
! 92: return;
! 93: }
! 94: intrstr = pci_intr_string(pa->pa_pc, ih);
! 95: sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, twe_intr, sc,
! 96: sc->sc_dev.dv_xname);
! 97: if (!sc->sc_ih) {
! 98: printf(": can't establish interrupt");
! 99: if (intrstr)
! 100: printf(" at %s", intrstr);
! 101: printf("\n");
! 102: bus_space_unmap(sc->iot, sc->ioh, size);
! 103: return;
! 104: }
! 105:
! 106: printf(": %s\n%s", intrstr, sc->sc_dev.dv_xname);
! 107:
! 108: if (twe_attach(sc)) {
! 109: pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
! 110: sc->sc_ih = NULL;
! 111: bus_space_unmap(sc->iot, sc->ioh, size);
! 112: }
! 113: }
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