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lpt_supio.c revision 1.10 
      1 /*	$NetBSD: lpt_supio.c,v 1.10 2002/10/02 04:55:52 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: lpt_supio.c,v 1.10 2002/10/02 04:55:52 thorpej Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/ioctl.h>
     45 #include <sys/select.h>
     46 #include <sys/tty.h>
     47 #include <sys/proc.h>
     48 #include <sys/user.h>
     49 #include <sys/conf.h>
     50 #include <sys/file.h>
     51 #include <sys/uio.h>
     52 #include <sys/kernel.h>
     53 #include <sys/syslog.h>
     54 #include <sys/types.h>
     55 #include <sys/device.h>
     56 
     57 #include <machine/intr.h>
     58 #include <machine/bus.h>
     59 
     60 #include <dev/ic/lptreg.h>
     61 #include <dev/ic/lptvar.h>
     62 
     63 #include <amiga/dev/supio.h>
     64 
     65 struct lptsupio_softc {
     66 	struct lpt_softc sc_lpt;
     67 	struct isr sc_isr;
     68 	void (*sc_intack)(void *);
     69 };
     70 
     71 int lpt_supio_match(struct device *, struct cfdata *, void *);
     72 void lpt_supio_attach(struct device *, struct device *, void *);
     73 int lpt_supio_intr(void *p);
     74 
     75 CFATTACH_DECL(lpt_supio, sizeof(struct lptsupio_softc),
     76     lpt_supio_match, lpt_supio_attach, NULL, NULL);
     77 
     78 int
     79 lpt_supio_match(struct device *parent, struct cfdata *match, void *aux)
     80 {
     81 	struct supio_attach_args *supa = aux;
     82 
     83 	if (strcmp(supa->supio_name,"lpt"))
     84 		return 0;
     85 
     86 	return (1);
     87 }
     88 
     89 int
     90 lpt_supio_intr(void *p)
     91 {
     92 	struct lptsupio_softc *sc = (void *)p;
     93 	int rc;
     94 
     95 	rc = lptintr(&sc->sc_lpt);
     96 	if (sc->sc_intack)
     97 		(*sc->sc_intack)(p);
     98 	return (rc);
     99 }
    100 
    101 void
    102 lpt_supio_attach(struct device *parent, struct device *self, 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 
    110 	/*
    111 	 * We're living on a superio chip.
    112 	 */
    113 	iobase = supa->supio_iobase;
    114 	iot = lsc->sc_iot = supa->supio_iot;
    115 	sc->sc_intack = (void *)supa->supio_arg;
    116 
    117         if (bus_space_map(iot, iobase, LPT_NPORTS, 0, &lsc->sc_ioh))
    118 		panic("lpt_supio_attach: io mapping failed");
    119 
    120 	printf(" port 0x%04x ipl %d\n", iobase, supa->supio_ipl);
    121 	lpt_attach_subr(lsc);
    122 
    123 	sc->sc_isr.isr_intr = lpt_supio_intr;
    124 	sc->sc_isr.isr_arg = sc;
    125 	sc->sc_isr.isr_ipl = supa->supio_ipl;
    126 	add_isr(&sc->sc_isr);
    127 }
    128