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lpt_supio.c revision 1.12 
      1 /*	$NetBSD: lpt_supio.c,v 1.12 2008/04/28 20:23:12 martin 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: lpt_supio.c,v 1.12 2008/04/28 20:23:12 martin Exp $");
     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)(void *);
     62 };
     63 
     64 int lpt_supio_match(device_t, cfdata_t , void *);
     65 void lpt_supio_attach(device_t, device_t, void *);
     66 int lpt_supio_intr(void *p);
     67 
     68 CFATTACH_DECL_NEW(lpt_supio, sizeof(struct lptsupio_softc),
     69     lpt_supio_match, lpt_supio_attach, NULL, NULL);
     70 
     71 int
     72 lpt_supio_match(device_t parent, cfdata_t match, void *aux)
     73 {
     74 	struct supio_attach_args *supa = aux;
     75 
     76 	if (strcmp(supa->supio_name,"lpt"))
     77 		return 0;
     78 
     79 	return (1);
     80 }
     81 
     82 int
     83 lpt_supio_intr(void *p)
     84 {
     85 	struct lptsupio_softc *sc = (void *)p;
     86 	int rc;
     87 
     88 	rc = lptintr(&sc->sc_lpt);
     89 	if (sc->sc_intack)
     90 		(*sc->sc_intack)(p);
     91 	return (rc);
     92 }
     93 
     94 void
     95 lpt_supio_attach(device_t parent, device_t self, void *aux)
     96 {
     97 	struct lptsupio_softc *sc = device_private(self);
     98 	struct lpt_softc *lsc = &sc->sc_lpt;
     99 	int iobase;
    100 	bus_space_tag_t iot;
    101 	struct supio_attach_args *supa = aux;
    102 
    103 	/*
    104 	 * We're living on a superio chip.
    105 	 */
    106 	lsc->sc_dev = self;
    107 	iobase = supa->supio_iobase;
    108 	iot = lsc->sc_iot = supa->supio_iot;
    109 	sc->sc_intack = (void *)supa->supio_arg;
    110 
    111 	aprint_normal(" port 0x%04x ipl %d\n", iobase, supa->supio_ipl);
    112         if (bus_space_map(iot, iobase, LPT_NPORTS, 0, &lsc->sc_ioh)) {
    113 		aprint_error_dev(self, "io mapping failed\n");
    114 		return;
    115 	}
    116 
    117 	lpt_attach_subr(lsc);
    118 
    119 	sc->sc_isr.isr_intr = lpt_supio_intr;
    120 	sc->sc_isr.isr_arg = sc;
    121 	sc->sc_isr.isr_ipl = supa->supio_ipl;
    122 	add_isr(&sc->sc_isr);
    123 }
    124