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fdc_sableio.c revision 1.7.74.1 
      1 /* $NetBSD: fdc_sableio.c,v 1.7.74.1 2008/04/03 12:42:10 mjf Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999, 2000 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: fdc_sableio.c,v 1.7.74.1 2008/04/03 12:42:10 mjf Exp $");
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/callout.h>
     46 #include <sys/device.h>
     47 #include <sys/buf.h>
     48 #if NRND > 0
     49 #include <sys/rnd.h>
     50 #endif
     51 
     52 #include <machine/bus.h>
     53 #include <machine/intr.h>
     54 
     55 #include <dev/isa/isavar.h>
     56 #include <dev/isa/isadmavar.h>
     57 
     58 #include <dev/isa/fdreg.h>
     59 #include <dev/isa/fdcvar.h>
     60 
     61 #include <dev/pci/pcivar.h>
     62 
     63 #include <alpha/sableio/sableiovar.h>
     64 
     65 int	fdc_sableio_match(device_t, cfdata_t, void *);
     66 void	fdc_sableio_attach(device_t, device_t, void *);
     67 
     68 struct fdc_sableio_softc {
     69 	struct	fdc_softc sc_fdc;	/* real "fdc" softc */
     70 
     71 	bus_space_handle_t sc_baseioh;	/* base I/O handle */
     72 };
     73 
     74 CFATTACH_DECL_NEW(fdc_sableio, sizeof(struct fdc_sableio_softc),
     75     fdc_sableio_match, fdc_sableio_attach, NULL, NULL);
     76 
     77 int
     78 fdc_sableio_match(device_t parent, cfdata_t match, void *aux)
     79 {
     80 	struct sableio_attach_args *sa = aux;
     81 
     82 	/* Always present. */
     83 	if (strcmp(sa->sa_name, match->cf_name) == 0)
     84 		return (1);
     85 
     86 	return (0);
     87 }
     88 
     89 void
     90 fdc_sableio_attach(device_t parent, device_t self, void *aux)
     91 {
     92 	struct fdc_sableio_softc *sfdc = device_private(self);
     93 	struct fdc_softc *fdc = &sfdc->sc_fdc;
     94 	struct sableio_attach_args *sa = aux;
     95 	const char *intrstr;
     96 
     97 	aprint_normal("\n");
     98 
     99 	fdc->sc_dev = self;
    100 	fdc->sc_iot = sa->sa_iot;
    101 	fdc->sc_ic = sa->sa_ic;
    102 	fdc->sc_drq = sa->sa_drq;
    103 
    104 	if (bus_space_map(fdc->sc_iot, sa->sa_ioaddr, 6 /* FDC_NPORT */, 0,
    105 	    &sfdc->sc_baseioh)) {
    106 		aprint_error_dev(self, "unable to map I/O space\n");
    107 		return;
    108 	}
    109 
    110 	if (bus_space_subregion(fdc->sc_iot, sfdc->sc_baseioh, 2, 4,
    111 	    &fdc->sc_ioh)) {
    112 		aprint_error_dev(self, "unable to subregion I/O space\n");
    113 		return;
    114 	}
    115 
    116 	if (bus_space_map(fdc->sc_iot, sa->sa_ioaddr + fdctl + 2, 1, 0,
    117 	    &fdc->sc_fdctlioh)) {
    118 		aprint_error_dev(self, "unable to map CTL I/O space\n");
    119 		return;
    120 	}
    121 
    122 	intrstr = pci_intr_string(sa->sa_pc, sa->sa_sableirq[0]);
    123 	fdc->sc_ih = pci_intr_establish(sa->sa_pc, sa->sa_sableirq[0],
    124 	    IPL_BIO, fdcintr, fdc);
    125 	if (fdc->sc_ih == NULL) {
    126 		aprint_error_dev(self, "unable to establish interrupt");
    127 		if (intrstr != NULL)
    128 			aprint_normal(" at %s", intrstr);
    129 		aprint_normal("\n");
    130 		return;
    131 	}
    132 	aprint_normal_dev(self, "interrupting at %s\n", intrstr);
    133 
    134 	fdcattach(fdc);
    135 }
    136