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lpt_mainbus.c revision 1.8 
      1 /*	$NetBSD: lpt_mainbus.c,v 1.8 2008/03/07 17:15:51 cube Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      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>			/* RCS ID & Copyright macro defns */
     40 
     41 __KERNEL_RCSID(0, "$NetBSD: lpt_mainbus.c,v 1.8 2008/03/07 17:15:51 cube Exp $");
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/ioctl.h>
     46 #include <sys/select.h>
     47 #include <sys/tty.h>
     48 #include <sys/proc.h>
     49 #include <sys/user.h>
     50 #include <sys/conf.h>
     51 #include <sys/file.h>
     52 #include <sys/uio.h>
     53 #include <sys/kernel.h>
     54 #include <sys/syslog.h>
     55 #include <sys/types.h>
     56 #include <sys/device.h>
     57 
     58 #include <machine/autoconf.h>
     59 #include <machine/intr.h>
     60 #include <machine/bus.h>
     61 
     62 #include <dev/ic/lptreg.h>
     63 #include <dev/ic/lptvar.h>
     64 
     65 struct lpt_mainbus_softc {
     66 	struct lpt_softc sc_lpt;	/* real "lpt" softc */
     67 
     68 	/* mainbus-specific goo. */
     69 	void	*sc_ih;			/* interrupt handler */
     70 };
     71 
     72 int	lpt_mainbus_match(device_t, cfdata_t , void *);
     73 void	lpt_mainbus_attach(device_t, device_t, void *);
     74 
     75 CFATTACH_DECL_NEW(lpt_mainbus, sizeof(struct lpt_mainbus_softc),
     76     lpt_mainbus_match, lpt_mainbus_attach, NULL, NULL);
     77 
     78 int
     79 lpt_mainbus_match(device_t parent, cfdata_t match, void *aux)
     80 {
     81 	struct mainbus_attach_args *ma = aux;
     82 
     83 	/* Always present. */
     84 	if (strcmp(ma->ma_name, match->cf_name) == 0)
     85 		return (1);
     86 
     87 	return (0);
     88 }
     89 
     90 void
     91 lpt_mainbus_attach(device_t parent, device_t self, void *aux)
     92 {
     93 	struct lpt_mainbus_softc *msc = device_private(self);
     94 	struct lpt_softc *sc = &msc->sc_lpt;
     95 	struct mainbus_attach_args *ma = aux;
     96 
     97 	sc->sc_dev = self;
     98 	sc->sc_iot = ma->ma_st;
     99 
    100 	if (bus_space_map(sc->sc_iot, ma->ma_addr, LPT_NPORTS, 0,
    101 	    &sc->sc_ioh) != 0) {
    102 		aprint_error(": can't map i/o space\n");
    103 		return;
    104 	}
    105 
    106 	aprint_normal("\n");
    107 	aprint_naive("\n");
    108 
    109 	lpt_attach_subr(sc);
    110 
    111 	sc->sc_ih = (*algor_intr_establish)(ma->ma_irq, lptintr, sc);
    112 	if (msc->sc_ih == NULL) {
    113 		aprint_normal_dev(self, "unable to establish interrupt\n");
    114 		return;
    115 	}
    116 }
    117