Home | History | Annotate | Line # | Download | only in acpi
joy_acpi.c revision 1.8.16.1 
      1 /* $NetBSD: joy_acpi.c,v 1.8.16.1 2008/12/12 23:06:56 ad Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2002 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. The name of the author may not be used to endorse or promote products
     13  *    derived from this software without specific prior written permission.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     20  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     22  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     23  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 /*
     29  * ACPI joy(4) attachment based in lpt_acpi.c by Jared D. McNeill.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: joy_acpi.c,v 1.8.16.1 2008/12/12 23:06:56 ad Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/errno.h>
     38 #include <sys/ioctl.h>
     39 #include <sys/device.h>
     40 #include <sys/proc.h>
     41 
     42 #include <sys/bus.h>
     43 
     44 #include <dev/acpi/acpica.h>
     45 #include <dev/acpi/acpireg.h>
     46 #include <dev/acpi/acpivar.h>
     47 
     48 #include <dev/ic/joyvar.h>
     49 
     50 static int	joy_acpi_match(device_t, cfdata_t, void *);
     51 static void	joy_acpi_attach(device_t, device_t, void *);
     52 
     53 struct joy_acpi_softc {
     54 	struct joy_softc sc_joy;
     55 	kmutex_t sc_lock;
     56 };
     57 
     58 CFATTACH_DECL_NEW(joy_acpi, sizeof(struct joy_acpi_softc), joy_acpi_match,
     59     joy_acpi_attach, NULL, NULL);
     60 
     61 /*
     62  * Supported device IDs
     63  */
     64 
     65 static const char * const joy_acpi_ids[] = {
     66 	"PNPB02F",	/* Joystick/Game port */
     67 	NULL
     68 };
     69 
     70 /*
     71  * joy_acpi_match: autoconf(9) match routine
     72  */
     73 static int
     74 joy_acpi_match(device_t parent, cfdata_t match, void *aux)
     75 {
     76 	struct acpi_attach_args *aa = aux;
     77 
     78 	if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
     79 		return 0;
     80 
     81 	return acpi_match_hid(aa->aa_node->ad_devinfo, joy_acpi_ids);
     82 }
     83 
     84 /*
     85  * joy_acpi_attach: autoconf(9) attach routine
     86  */
     87 static void
     88 joy_acpi_attach(device_t parent, device_t self, void *aux)
     89 {
     90 	struct joy_acpi_softc *asc = device_private(self);
     91 	struct joy_softc *sc = &asc->sc_joy;
     92 	struct acpi_attach_args *aa = aux;
     93 	struct acpi_resources res;
     94 	struct acpi_io *io;
     95 	ACPI_STATUS rv;
     96 
     97 	aprint_naive("\n");
     98 	aprint_normal("\n");
     99 
    100 	sc->sc_dev = self;
    101 
    102 	/* parse resources */
    103 	rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
    104 	    &res, &acpi_resource_parse_ops_default);
    105 	if (ACPI_FAILURE(rv))
    106 		return;
    107 
    108 	/* find our i/o registers */
    109 	io = acpi_res_io(&res, 0);
    110 	if (io == NULL) {
    111 		aprint_error_dev(self,
    112 		    "unable to find i/o register resource\n");
    113 		goto out;
    114 	}
    115 
    116 	sc->sc_iot = aa->aa_iot;
    117 	if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length,
    118 		    0, &sc->sc_ioh)) {
    119 		aprint_error_dev(self, "can't map i/o space\n");
    120 		goto out;
    121 	}
    122 
    123 	mutex_init(&asc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
    124 	sc->sc_lock = &asc->sc_lock;
    125 
    126 	joyattach(sc);
    127 
    128  out:
    129 	acpi_resource_cleanup(&res);
    130 }
    131