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Annotation of sys/arch/hp300/dev/hil_intio.c, Revision 1.1.1.1

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: }