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Annotation of sys/arch/hppa/dev/lpt_ssio.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: lpt_ssio.c,v 1.1 2007/06/20 18:22:15 kettenis Exp $   */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2007 Mark Kettenis
        !             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/device.h>
        !            22:
        !            23: #include <machine/bus.h>
        !            24:
        !            25: #include <dev/ic/lptreg.h>
        !            26: #include <dev/ic/lptvar.h>
        !            27:
        !            28: #include <hppa/dev/ssiovar.h>
        !            29:
        !            30: int lpt_ssio_match(struct device *, void *, void *);
        !            31: void lpt_ssio_attach(struct device *, struct device *, void *);
        !            32:
        !            33: struct cfattach lpt_ssio_ca = {
        !            34:        sizeof(struct lpt_softc), lpt_ssio_match, lpt_ssio_attach
        !            35: };
        !            36:
        !            37: int
        !            38: lpt_ssio_match(struct device *parent, void *match, void *aux)
        !            39: {
        !            40:        struct cfdata *cf = match;
        !            41:        struct ssio_attach_args *saa = aux;
        !            42:
        !            43:        if (strcmp(saa->saa_name, "lpt") != 0)
        !            44:                return (0);
        !            45:
        !            46:        /* Check locators. */
        !            47:        if (cf->ssiocf_irq != SSIO_UNK_IRQ && cf->ssiocf_irq != saa->saa_irq)
        !            48:                return (0);
        !            49:
        !            50:        return (1);
        !            51: }
        !            52:
        !            53: void
        !            54: lpt_ssio_attach(struct device *parent, struct device *self, void *aux)
        !            55: {
        !            56:        struct lpt_softc *sc = (void *)self;
        !            57:        struct ssio_attach_args *saa = aux;
        !            58:
        !            59:        sc->sc_iot = saa->saa_iot;
        !            60:        if (bus_space_map(sc->sc_iot, saa->saa_iobase, LPT_NPORTS,
        !            61:            0, &sc->sc_ioh)) {
        !            62:                printf(": cannot map io space\n");
        !            63:                return;
        !            64:        }
        !            65:
        !            66:        lpt_attach_common(sc);
        !            67:
        !            68:        sc->sc_ih = ssio_intr_establish(IPL_TTY, saa->saa_irq,
        !            69:            lptintr, sc, sc->sc_dev.dv_xname);
        !            70: }