Home | History | Annotate | Line # | Download | only in sableio
lpt_sableio.c revision 1.4.104.1 
      1 /* $NetBSD: lpt_sableio.c,v 1.4.104.1 2008/03/24 07:14:52 keiichi Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999 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_sableio.c,v 1.4.104.1 2008/03/24 07:14:52 keiichi 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/intr.h>
     59 #include <machine/bus.h>
     60 
     61 #include <dev/ic/lptreg.h>
     62 #include <dev/ic/lptvar.h>
     63 
     64 #include <dev/pci/pcivar.h>
     65 #include <dev/isa/isavar.h>
     66 
     67 #include <alpha/sableio/sableiovar.h>
     68 
     69 struct lpt_sableio_softc {
     70 	struct lpt_softc sc_lpt;	/* real "lpt" softc */
     71 
     72 	/* STDIO-specific goo. */
     73 	void	*sc_ih;			/* interrupt handler */
     74 };
     75 
     76 int	lpt_sableio_match(device_t, cfdata_t , void *);
     77 void	lpt_sableio_attach(device_t, device_t, void *);
     78 
     79 CFATTACH_DECL_NEW(lpt_sableio, sizeof(struct lpt_sableio_softc),
     80     lpt_sableio_match, lpt_sableio_attach, NULL, NULL);
     81 
     82 int
     83 lpt_sableio_match(device_t parent, cfdata_t match, void *aux)
     84 {
     85 	struct sableio_attach_args *sa = aux;
     86 
     87 	/* Always present. */
     88 	if (strcmp(sa->sa_name, match->cf_name) == 0)
     89 		return (1);
     90 
     91 	return (0);
     92 }
     93 
     94 void
     95 lpt_sableio_attach(device_t parent, device_t self, void *aux)
     96 {
     97 	struct lpt_sableio_softc *ssc = device_private(self);
     98 	struct lpt_softc *sc = &ssc->sc_lpt;
     99 	struct sableio_attach_args *sa = aux;
    100 	const char *intrstr;
    101 
    102 	sc->sc_dev = self;
    103 	sc->sc_iot = sa->sa_iot;
    104 
    105 	if (bus_space_map(sc->sc_iot, sa->sa_ioaddr, LPT_NPORTS, 0,
    106 	    &sc->sc_ioh) != 0) {
    107 		aprint_error(": can't map i/o space\n");
    108 		return;
    109 	}
    110 
    111 	aprint_normal("\n");
    112 	aprint_naive("\n");
    113 
    114 	lpt_attach_subr(sc);
    115 
    116 	intrstr = pci_intr_string(sa->sa_pc, sa->sa_sableirq[0]);
    117 	ssc->sc_ih = pci_intr_establish(sa->sa_pc, sa->sa_sableirq[0],
    118 	    IPL_TTY, lptintr, sc);
    119 	if (ssc->sc_ih == NULL) {
    120 		aprint_error_dev(self, "unable to establish interrupt");
    121 		if (intrstr != NULL)
    122 			aprint_error(" at %s", intrstr);
    123 		aprint_error("\n");
    124 		return;
    125 	}
    126 	aprint_normal_dev(self, "interrupting at %s\n", intrstr);
    127 }
    128