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pcppi_acpi.c revision 1.5
      1 /* $NetBSD: pcppi_acpi.c,v 1.5 2006/11/16 01:32:47 christos Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2005 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Juan Romero Pardines <xtraeme (at) NetBSD.org>.
      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 /*
     40  * Copyright (c) 2002 Jared D. McNeill <jmcneill (at) invisible.ca>
     41  * All rights reserved.
     42  *
     43  * Redistribution and use in source and binary forms, with or without
     44  * modification, are permitted provided that the following conditions
     45  * are met:
     46  * 1. Redistributions of source code must retain the above copyright
     47  *    notice, this list of conditions and the following disclaimer.
     48  * 2. The name of the author may not be used to endorse or promote products
     49  *    derived from this software without specific prior written permission.
     50  *
     51  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     52  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     53  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     54  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     55  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     56  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     57  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     58  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     59  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     60  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     61  * SUCH DAMAGE.
     62  */
     63 
     64 /*
     65  * ACPI pcppi(4) attachment based on lpt_acpi.c by Jared D. McNeill.
     66  */
     67 
     68 #include <sys/cdefs.h>
     69 __KERNEL_RCSID(0, "$NetBSD: pcppi_acpi.c,v 1.5 2006/11/16 01:32:47 christos Exp $");
     70 
     71 #include <sys/param.h>
     72 #include <sys/systm.h>
     73 #include <sys/errno.h>
     74 #include <sys/ioctl.h>
     75 #include <sys/device.h>
     76 #include <sys/proc.h>
     77 
     78 #include <machine/bus.h>
     79 
     80 #include <dev/acpi/acpica.h>
     81 #include <dev/acpi/acpireg.h>
     82 #include <dev/acpi/acpivar.h>
     83 
     84 #include <dev/isa/pcppivar.h>
     85 
     86 static int	pcppi_acpi_match(struct device *, struct cfdata *, void *);
     87 static void	pcppi_acpi_attach(struct device *, struct device *, void *);
     88 
     89 struct pcppi_acpi_softc {
     90 	struct pcppi_softc sc_pcppi;
     91 };
     92 
     93 CFATTACH_DECL(pcppi_acpi, sizeof(struct pcppi_acpi_softc), pcppi_acpi_match,
     94     pcppi_acpi_attach, NULL, NULL);
     95 
     96 /*
     97  * Supported device IDs
     98  */
     99 
    100 static const char * const pcppi_acpi_ids[] = {
    101 	"PNP0800",	/* AT-style speaker sound */
    102 	NULL
    103 };
    104 
    105 /*
    106  * pcppi_acpi_match: autoconf(9) match routine
    107  */
    108 static int
    109 pcppi_acpi_match(struct device *parent, struct cfdata *match,
    110     void *aux)
    111 {
    112 	struct acpi_attach_args *aa = aux;
    113 
    114 	if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
    115 		return 0;
    116 
    117 	return acpi_match_hid(aa->aa_node->ad_devinfo, pcppi_acpi_ids);
    118 }
    119 
    120 /*
    121  * pcppi_acpi_attach: autoconf(9) attach routine
    122  */
    123 static void
    124 pcppi_acpi_attach(struct device *parent, struct device *self,
    125     void *aux)
    126 {
    127 	struct pcppi_acpi_softc *asc = (struct pcppi_acpi_softc *)self;
    128 	struct pcppi_softc *sc = &asc->sc_pcppi;
    129 	struct acpi_attach_args *aa = aux;
    130 	struct acpi_resources res;
    131 	struct acpi_io *io;
    132 	ACPI_STATUS rv;
    133 
    134 	aprint_naive("\n");
    135 	aprint_normal("\n");
    136 
    137 	/* parse resources */
    138 	rv = acpi_resource_parse(&sc->sc_dv, aa->aa_node->ad_handle, "_CRS",
    139 	    &res, &acpi_resource_parse_ops_default);
    140 	if (ACPI_FAILURE(rv))
    141 		return;
    142 
    143 	/* find our i/o registers */
    144 	io = acpi_res_io(&res, 0);
    145 	if (io == NULL) {
    146 		aprint_error("%s: unable to find i/o register resource\n",
    147 		    sc->sc_dv.dv_xname);
    148 		goto out;
    149 	}
    150 
    151 	sc->sc_iot = aa->aa_iot;
    152 	if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length,
    153 		    0, &sc->sc_ppi_ioh)) {
    154 		aprint_error("%s: can't map i/o space\n", sc->sc_dv.dv_xname);
    155 		goto out;
    156 	}
    157 
    158 	pcppi_attach(sc);
    159 
    160  out:
    161 	acpi_resource_cleanup(&res);
    162 }
    163