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Annotation of sys/dev/pci/sli_pci.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: sli_pci.c,v 1.4 2007/05/19 04:10:20 dlg Exp $ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/param.h>
        !            20: #include <sys/systm.h>
        !            21: #include <sys/kernel.h>
        !            22: #include <sys/malloc.h>
        !            23: #include <sys/device.h>
        !            24:
        !            25: #include <machine/bus.h>
        !            26:
        !            27: #include <dev/pci/pcireg.h>
        !            28: #include <dev/pci/pcivar.h>
        !            29: #include <dev/pci/pcidevs.h>
        !            30:
        !            31: #include <scsi/scsi_all.h>
        !            32: #include <scsi/scsiconf.h>
        !            33:
        !            34: #include <dev/ic/slireg.h>
        !            35: #include <dev/ic/slivar.h>
        !            36:
        !            37: int    sli_pci_match(struct device *, void *, void *);
        !            38: void   sli_pci_attach(struct device *, struct device *, void *);
        !            39: int    sli_pci_detach(struct device *, int);
        !            40:
        !            41: struct sli_pci_softc {
        !            42:        struct sli_softc        psc_sli;
        !            43:
        !            44:        pci_chipset_tag_t       psc_pc;
        !            45:        pcitag_t                psc_tag;
        !            46:
        !            47:        void                    *psc_ih;
        !            48: };
        !            49:
        !            50: struct cfattach sli_pci_ca = {
        !            51:        sizeof(struct sli_pci_softc),
        !            52:        sli_pci_match,
        !            53:        sli_pci_attach,
        !            54:        sli_pci_detach
        !            55: };
        !            56:
        !            57: static const struct pci_matchid sli_pci_devices[] = {
        !            58:        { PCI_VENDOR_EMULEX,    PCI_PRODUCT_EMULEX_LP8000 }
        !            59: };
        !            60:
        !            61: int
        !            62: sli_pci_match(struct device *parent, void *match, void *aux)
        !            63: {
        !            64:        return (pci_matchbyid((struct pci_attach_args *)aux, sli_pci_devices,
        !            65:            sizeof(sli_pci_devices) / sizeof(sli_pci_devices[0])));
        !            66: }
        !            67:
        !            68: void
        !            69: sli_pci_attach(struct device *parent, struct device *self, void *aux)
        !            70: {
        !            71:        struct sli_pci_softc            *psc = (struct sli_pci_softc *)self;
        !            72:        struct sli_softc                *sc = &psc->psc_sli;
        !            73:        struct pci_attach_args          *pa = aux;
        !            74:        pcireg_t                        memtype;
        !            75:        pci_intr_handle_t               ih;
        !            76:
        !            77:        psc->psc_pc = pa->pa_pc;
        !            78:        psc->psc_tag = pa->pa_tag;
        !            79:        psc->psc_ih = NULL;
        !            80:        sc->sc_dmat = pa->pa_dmat;
        !            81:        sc->sc_ios_slim = 0;
        !            82:        sc->sc_ios_reg = 0;
        !            83:
        !            84:        memtype = pci_mapreg_type(psc->psc_pc, psc->psc_tag,
        !            85:            SLI_PCI_BAR_SLIM);
        !            86:        if (pci_mapreg_map(pa, SLI_PCI_BAR_SLIM, memtype, 0,
        !            87:            &sc->sc_iot_slim, &sc->sc_ioh_slim, NULL,
        !            88:            &sc->sc_ios_slim, 0) != 0) {
        !            89:                printf(": unable to map SLIM bar\n");
        !            90:                return;
        !            91:        }
        !            92:
        !            93:        memtype = pci_mapreg_type(psc->psc_pc, psc->psc_tag,
        !            94:            SLI_PCI_BAR_REGISTER);
        !            95:        if (pci_mapreg_map(pa, SLI_PCI_BAR_REGISTER, memtype, 0,
        !            96:            &sc->sc_iot_reg, &sc->sc_ioh_reg, NULL,
        !            97:            &sc->sc_ios_reg, 0) != 0) {
        !            98:                printf(": unable to map REGISTER bar\n");
        !            99:                goto unmap_slim;
        !           100:        }
        !           101:
        !           102:        if (pci_intr_map(pa, &ih)) {
        !           103:                printf(": unable to map interrupt\n");
        !           104:                goto unmap_reg;
        !           105:        }
        !           106:        printf(": %s", pci_intr_string(psc->psc_pc, ih));
        !           107:
        !           108:        if (sli_attach(sc) != 0) {
        !           109:                /* error already printed by sli_attach() */
        !           110:                goto unmap_reg;
        !           111:        }
        !           112:
        !           113:        psc->psc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_BIO,
        !           114:            sli_intr, sc, DEVNAME(sc));
        !           115:        if (psc->psc_ih == NULL) {
        !           116:                printf("%s: unable to establish interrupt\n");
        !           117:                goto detach;
        !           118:        }
        !           119:
        !           120:        return;
        !           121:
        !           122: detach:
        !           123:        sli_detach(sc, DETACH_FORCE|DETACH_QUIET);
        !           124: unmap_reg:
        !           125:        bus_space_unmap(sc->sc_iot_reg, sc->sc_ioh_reg, sc->sc_ios_reg);
        !           126:        sc->sc_ios_reg = 0;
        !           127: unmap_slim:
        !           128:        bus_space_unmap(sc->sc_iot_slim, sc->sc_ioh_slim, sc->sc_ios_slim);
        !           129:        sc->sc_ios_slim = 0;
        !           130: }
        !           131:
        !           132: int
        !           133: sli_pci_detach(struct device *self, int flags)
        !           134: {
        !           135:        struct sli_pci_softc            *psc = (struct sli_pci_softc *)self;
        !           136:        struct sli_softc                *sc = &psc->psc_sli;
        !           137:        int                             rv;
        !           138:
        !           139:        rv = sli_detach(sc, flags);
        !           140:        if (rv != 0)
        !           141:                return (rv);
        !           142:
        !           143:        return (0);
        !           144: }