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Annotation of sys/arch/hppa/gsc/fdc_gsc.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: fdc_gsc.c,v 1.5 2004/04/07 18:24:19 mickey Exp $      */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1998 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:
        !            30: #include <sys/param.h>
        !            31: #include <sys/systm.h>
        !            32: #include <sys/device.h>
        !            33:
        !            34: #include <machine/iomod.h>
        !            35: #include <machine/bus.h>
        !            36: #include <machine/intr.h>
        !            37: #include <machine/autoconf.h>
        !            38:
        !            39: #include <dev/ic/fdreg.h>
        !            40: #include <dev/ic/fdlink.h>
        !            41:
        !            42: #include <hppa/dev/cpudevs.h>
        !            43:
        !            44: /* controller driver configuration */
        !            45: int fdc_gsc_probe(struct device *, void *, void *);
        !            46: void fdc_gsc_attach(struct device *, struct device *, void *);
        !            47:
        !            48: struct cfattach fdc_gsc_ca = {
        !            49:        sizeof(struct fdc_softc), fdc_gsc_probe, fdc_gsc_attach
        !            50: };
        !            51:
        !            52: int
        !            53: fdc_gsc_probe(parent, match, aux)
        !            54:        struct device *parent;
        !            55:        void *match, *aux;
        !            56: {
        !            57:        struct confargs *ca = aux;
        !            58:        bus_space_handle_t ioh;
        !            59:        int rv;
        !            60:
        !            61:        if (ca->ca_type.iodc_type != HPPA_TYPE_FIO ||
        !            62:            ca->ca_type.iodc_sv_model != HPPA_FIO_GPCFD)
        !            63:                return 0;
        !            64:
        !            65:        /* Map the I/O space. */
        !            66:        if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh))
        !            67:                return 0;
        !            68:
        !            69:        rv = fdcprobe1(ca->ca_iot, ioh | IOMOD_DEVOFFSET);
        !            70:        bus_space_unmap(ca->ca_iot, ioh, IOMOD_HPASIZE);
        !            71:        return rv;
        !            72: }
        !            73:
        !            74: void
        !            75: fdc_gsc_attach(parent, self, aux)
        !            76:        struct device *parent, *self;
        !            77:        void *aux;
        !            78: {
        !            79:        struct fdc_softc *sc = (void *)self;
        !            80:        bus_space_handle_t ioh;
        !            81:        struct confargs *ca = aux;
        !            82:
        !            83:        /* Re-map the I/O space. */
        !            84:        if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh))
        !            85:                panic("fdcattach: couldn't map I/O ports");
        !            86:
        !            87:        ioh |= IOMOD_DEVOFFSET;
        !            88:        sc->sc_iot = ca->ca_iot;
        !            89:        sc->sc_ioh = ioh;
        !            90:        sc->sc_ioh_ctl = ioh + FDCTL_OFFSET;
        !            91:
        !            92:        fdc_attach_subr(sc);
        !            93: }
        !            94:
        !            95: