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Annotation of sys/arch/hp300/dev/hil_intio.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: hil_intio.c,v 1.8 2007/01/06 20:10:57 miod Exp $      */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2005, Miodrag Vallat.
        !             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
        !            18:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
        !            19:  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR 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 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 IN
        !            25:  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            26:  * POSSIBILITY OF SUCH DAMAGE.
        !            27:  *
        !            28:  */
        !            29:
        !            30: #include <sys/param.h>
        !            31: #include <sys/systm.h>
        !            32: #include <sys/device.h>
        !            33: #include <sys/conf.h>
        !            34:
        !            35: #include <machine/bus.h>
        !            36: #include <machine/cpu.h>
        !            37: #include <machine/intr.h>
        !            38:
        !            39: #include <dev/cons.h>
        !            40:
        !            41: #include <hp300/dev/intiovar.h>
        !            42:
        !            43: #include <machine/hil_machdep.h>
        !            44: #include <machine/bus.h>
        !            45: #include <dev/hil/hilvar.h>
        !            46:
        !            47: int    hil_intio_match(struct device *, void *, void *);
        !            48: void   hil_intio_attach(struct device *, struct device *, void *);
        !            49:
        !            50: struct cfattach hil_intio_ca = {
        !            51:        sizeof(struct hil_softc), hil_intio_match, hil_intio_attach
        !            52: };
        !            53:
        !            54: int
        !            55: hil_intio_match(struct device *parent, void *match, void *aux)
        !            56: {
        !            57:        struct intio_attach_args *ia = aux;
        !            58: static int hil_matched = 0;
        !            59:
        !            60:        /* Allow only one instance. */
        !            61:        if (hil_matched != 0)
        !            62:                return (0);
        !            63:
        !            64:        if (badaddr((caddr_t)IIOV(HILADDR)))    /* should not happen! */
        !            65:                return (0);
        !            66:
        !            67:        ia->ia_addr = (caddr_t)HILADDR;
        !            68:        return (1);
        !            69: }
        !            70:
        !            71: struct isr hil_isr;
        !            72: int hil_is_console = -1;       /* undecided */
        !            73:
        !            74: void
        !            75: hil_intio_attach(struct device *parent, struct device *self, void *aux)
        !            76: {
        !            77:        struct hil_softc *sc = (void *)self;
        !            78:        struct intio_attach_args *ia = aux;
        !            79:        extern struct consdev wsdisplay_cons;
        !            80:
        !            81:        sc->sc_bst = ia->ia_tag;
        !            82:        if (bus_space_map(sc->sc_bst, HILADDR,
        !            83:            HILMAPSIZE, 0, &sc->sc_bsh) != 0) {
        !            84:                printf(": couldn't map hil controller\n");
        !            85:                return;
        !            86:        }
        !            87:
        !            88:        /*
        !            89:         * Check that the configured console device is a wsdisplay.
        !            90:         */
        !            91:        if (cn_tab != &wsdisplay_cons)
        !            92:                hil_is_console = 0;
        !            93:
        !            94:        hil_isr.isr_func = hil_intr;
        !            95:        hil_isr.isr_arg = sc;
        !            96:        hil_isr.isr_ipl = 1;
        !            97:        hil_isr.isr_priority = IPL_TTY;
        !            98:
        !            99:        printf(" ipl %d", hil_isr.isr_ipl);
        !           100:
        !           101:        hil_attach(sc, &hil_is_console);
        !           102:        intr_establish(&hil_isr, self->dv_xname);
        !           103:
        !           104:        startuphook_establish(hil_attach_deferred, sc);
        !           105: }