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

1.1     ! nbrk        1: /*     $OpenBSD: mongoose_gsc.c,v 1.1 2004/10/30 10:26:32 miod Exp $   */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2004, Miodrag Vallat.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  * 1. Redistributions of source code must retain the above copyright
        !            10:  *    notice, this list of conditions and the following disclaimer.
        !            11:  * 2. Redistributions in binary form must reproduce the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer in the
        !            13:  *    documentation and/or other materials provided with the distribution.
        !            14:  *
        !            15:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
        !            17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
        !            18:  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
        !            19:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
        !            20:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
        !            21:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            22:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
        !            23:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
        !            24:  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            25:  * POSSIBILITY OF SUCH DAMAGE.
        !            26:  */
        !            27:
        !            28: #include <sys/param.h>
        !            29: #include <sys/systm.h>
        !            30: #include <sys/device.h>
        !            31:
        !            32: #include <machine/bus.h>
        !            33: #include <machine/autoconf.h>
        !            34:
        !            35: #include <hppa/dev/cpudevs.h>
        !            36:
        !            37: #include <dev/eisa/eisavar.h>
        !            38: #include <dev/isa/isavar.h>
        !            39:
        !            40: #include <hppa/dev/mongoosereg.h>
        !            41: #include <hppa/dev/mongoosevar.h>
        !            42:
        !            43: #include <hppa/gsc/gscbusvar.h>
        !            44:
        !            45: void   mgattach_gsc(struct device *, struct device *, void *);
        !            46: int    mgmatch_gsc(struct device *, void *, void *);
        !            47:
        !            48: struct cfattach mg_gsc_ca = {
        !            49:        sizeof(struct mongoose_softc), mgmatch_gsc, mgattach_gsc
        !            50: };
        !            51:
        !            52: int
        !            53: mgmatch_gsc(struct device *parent, void *cfdata, void *aux)
        !            54: {
        !            55:        struct gsc_attach_args *ga = aux;
        !            56:
        !            57:        if (ga->ga_type.iodc_type != HPPA_TYPE_BHA ||
        !            58:            ga->ga_type.iodc_sv_model != HPPA_BHA_WEISA)
        !            59:                return (0);
        !            60:
        !            61:        return (1);
        !            62: }
        !            63:
        !            64: void
        !            65: mgattach_gsc(struct device *parent, struct device *self, void *aux)
        !            66: {
        !            67:        struct mongoose_softc *sc = (struct mongoose_softc *)self;
        !            68:        struct gsc_attach_args *ga = aux;
        !            69:        bus_space_handle_t ioh;
        !            70:
        !            71:        sc->sc_bt = ga->ga_iot;
        !            72:        sc->sc_iomap = ga->ga_hpa;
        !            73:
        !            74:        if (bus_space_map(ga->ga_iot, ga->ga_hpa + MONGOOSE_MONGOOSE,
        !            75:            sizeof(struct mongoose_regs), 0, &ioh) != 0) {
        !            76:                printf(": can't map IO space\n");
        !            77:                return;
        !            78:        }
        !            79:        sc->sc_regs = (struct mongoose_regs *)ioh;
        !            80:
        !            81:        if (bus_space_map(ga->ga_iot, ga->ga_hpa + MONGOOSE_CTRL,
        !            82:            sizeof(struct mongoose_ctrl), 0, &ioh) != 0) {
        !            83:                printf(": can't map control registers\n");
        !            84:                bus_space_unmap(ga->ga_iot, (bus_space_handle_t)sc->sc_regs,
        !            85:                    sizeof(struct mongoose_regs));
        !            86:                return;
        !            87:        }
        !            88:        sc->sc_ctrl = (struct mongoose_ctrl *)ioh;
        !            89:
        !            90:        if (mgattach_common(sc) != 0)
        !            91:                return;
        !            92:
        !            93:        sc->sc_ih = gsc_intr_establish((struct gsc_softc *)parent,
        !            94:            ga->ga_irq, IPL_HIGH, mg_intr, sc, sc->sc_dev.dv_xname);
        !            95: }