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Annotation of sys/dev/pci/twe_pci.c, Revision 1.1.1.1

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: }