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lpt_supio.c revision 1.1 
      1 /*	$NetBSD: lpt_supio.c,v 1.1 1997/09/27 22:44:18 is Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 Ignatios Souvatzis.  All rights reserved.
      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  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Ignatios Souvatzis
     17  *	for the NetBSD project.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY AUTHOR ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  */
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/ioctl.h>
     38 #include <sys/select.h>
     39 #include <sys/tty.h>
     40 #include <sys/proc.h>
     41 #include <sys/user.h>
     42 #include <sys/conf.h>
     43 #include <sys/file.h>
     44 #include <sys/uio.h>
     45 #include <sys/kernel.h>
     46 #include <sys/syslog.h>
     47 #include <sys/types.h>
     48 #include <sys/device.h>
     49 
     50 #include <machine/intr.h>
     51 #include <machine/bus.h>
     52 
     53 #include <dev/ic/lptreg.h>
     54 #include <dev/ic/lptvar.h>
     55 
     56 #include <amiga/dev/supio.h>
     57 
     58 struct lptsupio_softc {
     59 	struct lpt_softc sc_lpt;
     60 	struct isr sc_isr;
     61 	void (*sc_intack)__P((void *));
     62 };
     63 
     64 int lpt_supio_match __P((struct device *, struct cfdata *, void *));
     65 void lpt_supio_attach __P((struct device *, struct device *, void *));
     66 int lpt_supio_intr __P((void *p));
     67 
     68 struct cfattach lpt_supio_ca = {
     69 	sizeof(struct lptsupio_softc), lpt_supio_match, lpt_supio_attach
     70 };
     71 
     72 int
     73 lpt_supio_match(parent, match, aux)
     74 	struct device *parent;
     75 	struct cfdata *match;
     76 	void *aux;
     77 {
     78 	struct supio_attach_args *supa = aux;
     79 
     80 	if (strcmp(supa->supio_name,"lpt"))
     81 		return 0;
     82 
     83 	return (1);
     84 }
     85 
     86 int
     87 lpt_supio_intr(p)
     88 	void *p;
     89 {
     90 	struct lptsupio_softc *sc = (void *)p;
     91 	int rc;
     92 
     93 	rc = lptintr(&sc->sc_lpt);
     94 	if (sc->sc_intack)
     95 		(*sc->sc_intack)(p);
     96 	return (rc);
     97 }
     98 
     99 void
    100 lpt_supio_attach(parent, self, aux)
    101 	struct device *parent, *self;
    102 	void *aux;
    103 {
    104 	struct lptsupio_softc *sc = (void *)self;
    105 	struct lpt_softc *lsc = &sc->sc_lpt;
    106 	int iobase;
    107 	bus_space_tag_t iot;
    108 	struct supio_attach_args *supa = aux;
    109 	u_int16_t needpsl;
    110 
    111 	/*
    112 	 * We're living on a superio chip.
    113 	 */
    114 	iobase = supa->supio_iobase;
    115 	iot = lsc->sc_iot = supa->supio_iot;
    116 	sc->sc_intack = (void *)supa->supio_arg;
    117 
    118         if (bus_space_map(iot, iobase, LPT_NPORTS, 0, &lsc->sc_ioh))
    119 		panic("lpt_supio_attach: io mapping failed");
    120 
    121 	printf(" port 0x%x ipl %d\n", iobase, supa->supio_ipl);
    122 	lpt_attach_subr(lsc);
    123 
    124 	/* XXX this should be really in the interupt stuff */
    125 	needpsl = PSL_S | (supa->supio_ipl << 8);
    126 
    127 	if (amiga_ttyspl < needpsl) {
    128 		printf("%s: raising amiga_ttyspl from 0x%x to 0x%x\n",
    129 		    lsc->sc_dev.dv_xname, amiga_ttyspl, needpsl);
    130 		amiga_ttyspl = needpsl;
    131 	}
    132 	sc->sc_isr.isr_intr = lpt_supio_intr;
    133 	sc->sc_isr.isr_arg = sc;
    134 	sc->sc_isr.isr_ipl = supa->supio_ipl;
    135 	add_isr(&sc->sc_isr);
    136 }
    137