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      1 /*	$NetBSD: lpt_mainbus.c,v 1.12 2011/07/09 16:03:01 matt 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  *
     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>			/* RCS ID & Copyright macro defns */
     33 
     34 __KERNEL_RCSID(0, "$NetBSD: lpt_mainbus.c,v 1.12 2011/07/09 16:03:01 matt Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/bus.h>
     38 #include <sys/conf.h>
     39 #include <sys/device.h>
     40 #include <sys/intr.h>
     41 #include <sys/ioctl.h>
     42 #include <sys/systm.h>
     43 
     44 #include <algor/autoconf.h>
     45 
     46 #include <dev/ic/lptreg.h>
     47 #include <dev/ic/lptvar.h>
     48 
     49 struct lpt_mainbus_softc {
     50 	struct lpt_softc sc_lpt;	/* real "lpt" softc */
     51 
     52 	/* mainbus-specific goo. */
     53 	void	*sc_ih;			/* interrupt handler */
     54 };
     55 
     56 int	lpt_mainbus_match(device_t, cfdata_t , void *);
     57 void	lpt_mainbus_attach(device_t, device_t, void *);
     58 
     59 CFATTACH_DECL_NEW(lpt_mainbus, sizeof(struct lpt_mainbus_softc),
     60     lpt_mainbus_match, lpt_mainbus_attach, NULL, NULL);
     61 
     62 int
     63 lpt_mainbus_match(device_t parent, cfdata_t match, void *aux)
     64 {
     65 	struct mainbus_attach_args *ma = aux;
     66 
     67 	/* Always present. */
     68 	if (strcmp(ma->ma_name, match->cf_name) == 0)
     69 		return (1);
     70 
     71 	return (0);
     72 }
     73 
     74 void
     75 lpt_mainbus_attach(device_t parent, device_t self, void *aux)
     76 {
     77 	struct lpt_mainbus_softc *msc = device_private(self);
     78 	struct lpt_softc *sc = &msc->sc_lpt;
     79 	struct mainbus_attach_args *ma = aux;
     80 
     81 	sc->sc_dev = self;
     82 	sc->sc_iot = ma->ma_st;
     83 
     84 	if (bus_space_map(sc->sc_iot, ma->ma_addr, LPT_NPORTS, 0,
     85 	    &sc->sc_ioh) != 0) {
     86 		aprint_error(": can't map i/o space\n");
     87 		return;
     88 	}
     89 
     90 	aprint_normal("\n");
     91 	aprint_naive("\n");
     92 
     93 	lpt_attach_subr(sc);
     94 
     95 	sc->sc_ih = (*algor_intr_establish)(ma->ma_irq, lptintr, sc);
     96 	if (msc->sc_ih == NULL) {
     97 		aprint_normal_dev(self, "unable to establish interrupt\n");
     98 		return;
     99 	}
    100 }
    101